1. An ultrahigh frequency anaerobic pyrolysis device for household garbage, which comprises a feeding and deslagging assembly, a reaction chamber assembly, a heating assembly and a gas-liquid cooling and collecting assembly, and is characterized in that,

the feeding and slag discharging assembly comprises a base, a shaftless screw conveyor, a screw support, a slag discharging port, a slag discharging valve, a hydraulic gate valve, a feeding hopper, a screw sealing sleeve and a slag inlet, wherein the first end of the shaftless screw conveyor is provided with the slag discharging port and the slag discharging valve, the slag discharging valve is positioned at the lower end of the slag discharging port, the second end of the shaftless screw conveyor is provided with the slag inlet, the slag inlet is positioned in the reaction chamber, the middle part of the shaftless screw conveyor is connected with the first end of the screw support, the second end of the shaftless screw conveyor is connected with the first end of the reaction chamber through the screw sealing sleeve, the third end of the shaftless screw conveyor is connected with the first end of the feeding hopper, and the second end of the feeding hopper is connected with the hydraulic gate valve;

the reaction chamber assembly comprises a reaction chamber shell, a reaction chamber, a Y-shaped carrier roller group, a heat preservation sealing sleeve, a supporting plate, an air outlet pipe and an air outlet pipe sealing sleeve, wherein the lower end of the reaction chamber shell is fixedly connected with a second mounting part of the base;

the heating assembly comprises a heating coil, a temperature sensor and an insulation medium, the heating coil is positioned outside the reaction chamber, the temperature sensor is positioned outside the reaction chamber shell, and the insulation medium is positioned between the inside of the reaction chamber shell and the heating coil;

the gas-liquid cooling and collecting assembly comprises a shell, a flow dividing pipe, a gas-liquid separating tank, a spiral finned pipe, a cooling fan, a first outlet pipe, a second outlet pipe, an oil-water temporary storage tank, a combustible gas outlet pipe and a combustible gas temporary storage tank, wherein the first end of the gas-liquid separating tank is connected with the second end of a seal sleeve of the gas outlet pipe, the second end of the gas-liquid separating tank is connected with the first end of the flow dividing pipe, the third mounting part of the gas-liquid separating tank is provided with the first outlet pipe, the first outlet pipe is connected with the first end of the oil-water temporary storage tank, the second end of the flow dividing pipe is connected with the first end of the spiral finned pipe, the second end of the spiral finned pipe is connected with the first end of the gas-liquid separating pipe, the second end and the third end of the gas-liquid separating pipe are respectively provided with, and the second outlet pipe is connected with the second end of the oil-water temporary storage tank.

2. The ultrahigh frequency anaerobic pyrolysis device for household garbage according to claim 1, further comprising a driving component, which comprises a big gear, a small gear, a speed reducer, a big belt pulley, a transmission belt, a driving motor and a small belt pulley, the shell of the driving motor and the shell of the speed reducer are respectively and fixedly connected with the fourth mounting part and the fifth mounting part of the base, the output shaft of the driving motor is connected with the first end of the small belt pulley, the second end of the small belt pulley is connected with the first end of the large belt pulley through the transmission belt, the second end of the big belt pulley is connected with the first end of the speed reducer, the second end of the speed reducer is connected with the first end of the pinion, the second end of the small gear is meshed with the first end of the large gear, and the second end of the large gear is fixedly connected with the outside of the second side of the reaction chamber.

3. The ultrahigh frequency anaerobic pyrolysis device for household garbage according to claim 1, wherein in the gas-liquid cooling collection assembly, the shell of the gas-liquid separation tank and the first end of the shell are fixedly connected with the sixth installation part and the seventh installation part of the base respectively, the shell of the flow dividing pipe is fixedly connected with the second end of the shell, the shell of the spiral finned tube is fixedly connected with the third end of the shell, the cooling fan is fixedly connected with the fourth end of the shell, and the oil-water temporary storage tank and the combustible gas temporary storage tank are fixedly connected with the fifth end and the sixth end of the shell respectively.

4. The ultrahigh frequency anaerobic pyrolysis device for household garbage according to claim 1, wherein in the feeding and deslagging assembly, the first end of the platform is fixedly connected with the first end of the base, the guardrail is fixedly connected with two sides of the second end of the platform, the second end of the spiral support is fixedly connected with the third end of the platform, and the ladder stand is fixedly connected with the fourth end of the platform.

5. The ultrahigh-frequency anaerobic pyrolysis device for household garbage according to claim 1, wherein the number of the partition plates is seven, the inner wall of the reaction chamber is uniformly divided into eight same partition chambers, the number of the slag shoveling buckets is four, the slag shoveling buckets are positioned in the first partition chamber and are uniformly distributed along the circumferential direction in the first partition chamber; the utility model discloses a partition wall, including first wall room to eighth wall room, first wall room to the first wall room, first wall room to the second wall room, first wall room to the first wall room, first wall room to the second wall room.

6. The ultrahigh frequency anaerobic pyrolysis device for household garbage according to claim 1, wherein the number of the heating coils is four, and a support plate is arranged between adjacent heating coils to divide the heating coils into four heating zones.

7. A method for ultrahigh frequency anaerobic pyrolysis of ultrahigh frequency anaerobic pyrolysis apparatus for domestic garbage according to any one of claims 1 to 6, characterized in that it comprises the following steps:

s1, feeding: opening a hydraulic gate valve, feeding the crushed and screened household garbage into a shaftless screw conveyor through a feeding hopper, pushing the crushed and screened household garbage into a reaction chamber through the shaftless screw conveyor, and closing the hydraulic gate valve;

s2, heating the reaction chamber: starting a heating assembly with a heating coil, heating the temperature of the reaction chamber to 700-800 ℃, and providing heat for anaerobic pyrolysis of the household garbage in the reaction chamber;

s3, anaerobic pyrolysis: starting a driving motor, and driving the reaction chamber to rotate forward and backward at preset intervals under the driving of the large gear;

s4, collecting and recovering the mixed gas generated by anaerobic pyrolysis: sending mixed gas generated by anaerobic pyrolysis in a reaction chamber into a gas-liquid separation tank, converting gaseous heavy oil into liquid for separation and recovery through centrifugal impact in the gas-liquid separation tank, and converting the mixed gas into liquid light oil, water and combustible mixed gas for recovery;

s5, deslagging: open the gate valve that is located the slag notch lower part, through the lasting reversal of reaction chamber, will gu the sediment lasts to going out the direction of gate opening and remove and throw, shovel slag hopper will admittedly the sediment shovel to advancing in the slag notch simultaneously, will admittedly the sediment through shaftless screw conveyer and push away to the slag notch to discharge through the gate valve that discharges.

8. The uhf anaerobic pyrolysis method according to claim 7, wherein the temperature in the reaction chamber is controlled at 580 to 620 ℃ in step S3.

Background

Domestic garbage generated in cities is an important problem to be solved all the time, which not only has certain influence on the appearance of the cities, but also pollutes the environment and threatens the physical health of people.

At present, the garbage stacking in cities is saturated, and the garbage stacking is gradually expanded to urban and rural combined areas for garbage storage. Because the regional environment and the dietary habits are different, the components of the household garbage generated by each urban residential area are different, and the household garbage disposal modes selected in each region are different.

The conventional garbage treatment technology mainly comprises three technologies, namely a garbage filling technology, an incineration treatment technology and a high-temperature composting technology.

However, the deficiencies of the three techniques are also apparent. The landfill technology comprises the following steps: a large amount of land is needed, a large amount of ozone is generated by landfill, percolate cannot be removed, and a large amount of capital maintenance is needed subsequently; the incineration technology comprises the following steps: the large amount of garbage can be used for incineration power generation to generate certain economic benefit, but the smoke generated after incineration can cause secondary pollution of atmosphere, and a large amount of dust removing equipment is required to be matched for purifying the smoke; high-temperature composting technology: needs to occupy a large amount of land, has higher technical requirement and high requirement on the components of the garbage, and generates ozone in the high-temperature fermentation process to cause secondary pollution.

Based on the above, the invention provides the pyrolysis device and the pyrolysis method which can not cause secondary pollution for the treatment technology of the domestic garbage while solving the defects of the prior art.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides an ultrahigh frequency anaerobic pyrolysis device and method for domestic garbage, which mainly reduce the generation of harmful gases and pollutants by adopting an anaerobic pyrolysis technology and ultrahigh frequency heating, and the obtained product can be recycled, thereby not only protecting the environment, but also efficiently solving the problem of domestic garbage treatment.

The invention provides an ultrahigh frequency anaerobic pyrolysis device for household garbage, which comprises a feeding and deslagging assembly, a reaction chamber assembly, a heating assembly and a gas-liquid cooling and collecting assembly

The feeding and slag discharging assembly comprises a base, a shaftless screw conveyor, a screw support, a slag discharging port, a slag discharging valve, a hydraulic gate valve, a feeding hopper, a screw sealing sleeve and a slag inlet, wherein the first end of the shaftless screw conveyor is provided with the slag discharging port and the slag discharging valve, the slag discharging valve is positioned at the lower end of the slag discharging port, the second end of the shaftless screw conveyor is provided with the slag inlet, the slag inlet is positioned in the reaction chamber, the middle part of the shaftless screw conveyor is connected with the first end of the screw support, the second end of the shaftless screw conveyor is connected with the first end of the reaction chamber through the screw sealing sleeve, the third end of the shaftless screw conveyor is connected with the first end of the feeding hopper, and the second end of the feeding hopper is connected with the hydraulic gate valve;

the reaction chamber assembly comprises a reaction chamber shell, a reaction chamber, a Y-shaped carrier roller group, a heat preservation sealing sleeve, a supporting plate, an air outlet pipe and an air outlet pipe sealing sleeve, wherein the lower end of the reaction chamber shell is fixedly connected with a second mounting part of the base;

the heating assembly comprises a heating coil, a temperature sensor and an insulation medium, the heating coil is positioned outside the reaction chamber, the temperature sensor is positioned outside the reaction chamber shell, and the insulation medium is positioned between the inside of the reaction chamber shell and the heating coil;

the gas-liquid cooling and collecting assembly comprises a shell, a flow dividing pipe, a gas-liquid separating tank, a spiral finned pipe, a cooling fan, a first outlet pipe, a second outlet pipe, an oil-water temporary storage tank, a combustible gas outlet pipe and a combustible gas temporary storage tank, wherein the first end of the gas-liquid separating tank is connected with the second end of a seal sleeve of the gas outlet pipe, the second end of the gas-liquid separating tank is connected with the first end of the flow dividing pipe, the third mounting part of the gas-liquid separating tank is provided with the first outlet pipe, the first outlet pipe is connected with the first end of the oil-water temporary storage tank, the second end of the flow dividing pipe is connected with the first end of the spiral finned pipe, the second end of the spiral finned pipe is connected with the first end of the gas-liquid separating pipe, the second end and the third end of the gas-liquid separating pipe are respectively provided with the combustible gas outlet pipe and the second outlet pipe, and the combustible gas outlet pipe is connected with the combustible gas temporary storage tank, and the second outlet pipe is connected with the second end of the oil-water temporary storage tank.

In a preferred embodiment, the ultrahigh frequency anaerobic pyrolysis device for household garbage further comprises a driving component, which comprises a big gear, a small gear, a speed reducer, a big belt pulley, a transmission belt, a driving motor and a small belt pulley, the shell of the driving motor and the shell of the speed reducer are respectively and fixedly connected with the fourth mounting part and the fifth mounting part of the base, the output shaft of the driving motor is connected with the first end of the small belt pulley, the second end of the small belt pulley is connected with the first end of the large belt pulley through the transmission belt, the second end of the big belt pulley is connected with the first end of the speed reducer, the second end of the speed reducer is connected with the first end of the pinion, the second end of the small gear is meshed with the first end of the large gear, and the second end of the large gear is fixedly connected with the outside of the second side of the reaction chamber.

Further, in the gas-liquid cooling collection subassembly, the shell of gas-liquid separation jar with the first end of casing respectively with the sixth installation department and the seventh installation department fixed connection of base, the shell of shunt tubes with the second end fixed connection of casing, the shell of spiral finned tube with the third end fixed connection of casing, cooling blower with the fourth end fixed connection of casing, the profit jar of keeping in with the combustible gas jar of keeping in respectively with the fifth end and the sixth end fixed connection of casing.

Preferably, in the feeding and deslagging assembly, the first end of the platform is fixedly connected with the first end of the base, the guardrail is fixedly connected with two sides of the second end of the platform, the second end of the spiral support is fixedly connected with the third end of the platform, and the ladder stand is fixedly connected with the fourth end of the platform.

Preferably, the number of the partition plates is seven, the inner wall of the reaction chamber is uniformly divided into eight same partition chambers, and the four slag shoveling buckets are positioned in the first partition chamber and uniformly distributed along the circumferential direction in the first partition chamber; the utility model discloses a partition wall, including first wall room to eighth wall room, first wall room to the first wall room, first wall room to the second wall room, first wall room to the first wall room, first wall room to the second wall room.

Preferably, the number of the heating coils is four, and a support plate is disposed between adjacent heating coils to divide the heating coils into four heating zones.

Another invention of the present invention provides an ultrahigh frequency anaerobic pyrolysis method according to the aforementioned ultrahigh frequency anaerobic pyrolysis apparatus for household garbage, comprising the steps of:

s1, feeding: opening a hydraulic gate valve, feeding the crushed and screened household garbage into a shaftless screw conveyor through a feeding hopper, pushing the crushed and screened household garbage into a reaction chamber through the shaftless screw conveyor, and closing the hydraulic gate valve;

s2, heating the reaction chamber: starting a heating assembly with a heating coil, heating the temperature of the reaction chamber to 700-800 ℃, and providing heat for anaerobic pyrolysis of the household garbage in the reaction chamber;

s3, anaerobic pyrolysis: starting a driving motor, and driving the reaction chamber to rotate forward and backward at preset intervals under the driving of the large gear;

s4, collecting and recovering the mixed gas generated by anaerobic pyrolysis: sending mixed gas generated by anaerobic pyrolysis in a reaction chamber into a gas-liquid separation tank, converting gaseous heavy oil into liquid for separation and recovery through centrifugal impact in the gas-liquid separation tank, and converting the mixed gas into liquid light oil, water and combustible mixed gas for recovery;

s5, deslagging: open the gate valve that is located the slag notch lower part, through the lasting reversal of reaction chamber, will gu the sediment lasts to going out the direction of gate opening and remove and throw, shovel slag hopper will admittedly the sediment shovel to advancing in the slag notch simultaneously, will admittedly the sediment through shaftless screw conveyer and push away to the slag notch to discharge through the gate valve that discharges.

8. The uhf anaerobic pyrolysis method according to claim 7, wherein the temperature in the reaction chamber is controlled at 580 to 620 ℃ in step S3.

Drawings

FIG. 1 is a front view of an ultrahigh frequency anaerobic pyrolysis device for household garbage according to the present invention;

FIG. 2 is a top view of the ultrahigh frequency anaerobic pyrolysis device for household garbage according to the present invention;

FIG. 3 is an isometric view of the ultrahigh frequency anaerobic pyrolysis device for household garbage of the present invention;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 2;

FIG. 5 is a cross-sectional view of the present invention taken along line B-B of FIG. 2;

FIG. 6 is a cross-sectional view of the present invention taken along line C-C of FIG. 2;

FIG. 7 is a view of the present invention taken along D-D of FIG. 2;

FIG. 8 is a cross-sectional view of the present invention taken along line E-E of FIG. 2;

FIG. 9 is a schematic flow chart of the ultrahigh frequency anaerobic pyrolysis method for household garbage.

The main reference numbers:

the device comprises a guardrail 1, a shaftless screw conveyor 2, a ladder stand 3, a platform 4, a slag hole 5, a slag valve 6, a base 7, a screw support 8, a hydraulic gate valve 9, a feeding hopper 10, an access door 11, a screw sealing sleeve 12, a heat-insulating sealing sleeve 13, a reaction chamber shell 14, a temperature sensor 15, a reaction chamber 16, a large gear 17, an air outlet pipe sealing sleeve 18, a gas-liquid separation tank 19, a shunt pipe 20, a gas-liquid separation pipe 21, a shell 22, a spiral finned tube 23, a cooling fan 24, a Y-shaped carrier roller group 25, a small gear 26, a speed reducer 27, a large belt pulley 28, a transmission belt 29, a first outlet pipe 30, a second outlet pipe 31, an oil-water temporary storage tank 32, a combustible gas outlet pipe 33, a combustible gas temporary storage tank 34, a driving motor 35, a small belt pulley 36, a heat-insulating medium 37, a heating coil 38, a supporting plate 39, a slag inlet 40, a slag shoveling hopper 41, a reverse inclined paddle 42, a forward inclined paddle 43 and a partition plate 44, and an outlet pipe 45.

Detailed Description

The technical contents, structural features, attained objects and effects of the present invention are explained in detail below with reference to the accompanying drawings.

The invention relates to an ultrahigh frequency anaerobic pyrolysis device for household garbage, which has the main technical principle that: the organic matter can generate mixed gas consisting of carbon residue, heavy oil, combustible gas, light oil and water vapor in an anaerobic environment at the high temperature of 600-700 ℃; separating heavy oil from mixed gas due to different physical properties of liquid and gas, rapidly condensing the high-temperature mixed gas to generate light oil, liquid water and combustible gas, separating the light oil and the water from the combustible gas by using the physical properties again, and finally separating the light oil from the oil-water mixed liquid; thereby collecting each product separately. As shown in fig. 1 to 3, the apparatus of the present invention specifically includes a feed tapping assembly, a reaction chamber assembly, a heating assembly, a driving assembly, and a gas-liquid cooling collection assembly.

The feeding and slag discharging assembly, as shown in fig. 3, comprises a guardrail 1, a ladder stand 3, a platform 4, a base 7, a shaftless screw conveyor 2, a screw support 8, a slag discharging port 5, a slag discharging valve 6, a hydraulic gate valve 9, a feeding hopper 10, a screw sealing sleeve 12 and a slag inlet 40; the base 7 is of a rectangular structure, a steel plate is welded on the upper surface of the base 7, and the platform 4, the reaction chamber shell 14, the Y-shaped carrier roller group 25, the speed reducer 27, the driving motor 35, the gas-liquid separation tank 19 and the shell 22 are sequentially arranged on the base 7.

As shown in fig. 4 in combination with fig. 2-3, the first end of the platform 4 is fixedly connected with the first mounting portion of the base 7, the guard rail 1 is fixedly connected with both sides of the second end of the platform 4, the second end of the spiral support 8 is fixedly connected with the third end of the platform 4, and the ladder stand 3 is fixedly connected with the fourth end of the platform 4. The first end of shaftless screw conveyer 2 is equipped with slag notch 5 and slag valve 6, slag valve 6 is located the lower extreme of slag notch 5, the second end of shaftless screw conveyer 2 is equipped with into slag notch 40, it is located the inside of reacting chamber 16 to advance slag notch 40, the middle part of shaftless screw conveyer 2 and the first end of screw support 8 are connected, the second end of shaftless screw conveyer 2 is connected through the first end of screw seal cover 12 with reacting chamber 16, the third end of shaftless screw conveyer 2 and the first end of going into hopper 10 are connected, the second end and the hydraulic gate valve 9 that go into hopper 10 are connected.

The reaction chamber assembly, as shown in fig. 5 and 6, comprises a reaction chamber shell 14, a reaction chamber 16, a Y-shaped idler group 25, an access door 11, a heat preservation sealing sleeve 13, a supporting plate 39, a slag bucket 41, a reverse inclined paddle 42, a forward inclined paddle 43, a partition plate 44, an air outlet pipe 45 and an air outlet pipe sealing sleeve 18; the reaction chamber 16 is of a cylindrical structure, semicircular limiting rails are arranged on the outer walls of two ends of the reaction chamber to prevent the reaction chamber 16 from moving left and right, and the semicircular limiting rails on the outer walls of the reaction chamber 16 are tangent to the circumferences of semicircular grooves on the four groups of Y-shaped carrier roller groups 25; the Y-shaped carrier roller group 25 is structurally characterized in that double carrier rollers are arranged and share a rotating shaft, the position can be flexibly adjusted, and eight carrier rollers in four groups can effectively support the reaction chamber 16.

The lower end of the reaction chamber shell 14 is fixedly connected with the second end of the base 7, the Y-shaped carrier roller set 25 is fixedly connected with the third mounting portion of the base 7, the reaction chamber 16 is located inside the upper end of the reaction chamber shell 14, heat-insulating sealing sleeves 13 are respectively arranged on two sides of the outer portion of the reaction chamber 16, the heat-insulating sealing sleeves 13 are sectional type, the heat-insulating sealing sleeves 13 are respectively fixedly connected with two sides of the inner portion of the reaction chamber shell 14, and a supporting plate 39 is arranged inside the reaction chamber shell 14. Since the reaction chamber 16 is rotated in a circle, the position of the access door 11 is changed as it rotates, and it is possible to locate at which end. The air outlet pipe 45 is positioned in the middle of the second side of the reaction chamber 16, the air outlet pipe 45 is connected with the first end of the air outlet pipe sealing sleeve 18, and the partition plate 44, the slag shoveling bucket 41, the reverse inclined paddle 42 and the forward inclined paddle 43 are respectively arranged in the reaction chamber 16.

As shown in fig. 8, specifically, the number of the partition plates 44 is seven, the inner wall of the reaction chamber 16 is uniformly divided into eight identical partition chambers, and the number of the slag scoops 41 is four, and the four slag scoops are located inside the first partition chamber and uniformly distributed along the circumferential direction inside the first partition chamber; the quantity of the reverse oblique propellers 42 and the forward oblique propellers 43 is seven, the reverse oblique propellers 42 and the forward oblique propellers 43 are sequentially distributed in the second partition chamber to the eighth partition chamber, the reverse oblique propellers 42 and the forward oblique propellers 43 are symmetrically arranged in the same partition chamber, and the reverse oblique propellers 42 or the forward oblique propellers 43 are sequentially arranged in a staggered mode according to a certain angle in the two adjacent partition chambers.

The heating assembly comprises heating coils 38, temperature sensors 15 and heat preservation media 37, the number of the heating coils 38 is four, the heating coils 38 are located outside the reaction chamber 16, a supporting plate 39 is arranged between every two adjacent heating coils 38, the heating coils 38 are divided into four heating zones, the four groups of temperature sensors 15 are arranged on the front face of the outer portion of the reaction chamber shell 14, the four heating zones are used for measuring the temperature respectively, and the heat preservation media 37 are located between the inner portion of the reaction chamber shell 14 and the heating coils 38.

The gas-liquid cooling collection assembly, as shown in fig. 2 and 3, includes a housing 22, a shunt tube 20, a gas-liquid separation tube 21, a gas-liquid separation tank 19, a spiral fin tube 23, a cooling fan 24, a first outlet tube 30, a second outlet tube 31, an oil-water temporary storage tank 32, a combustible gas outlet tube 33 and a combustible gas temporary storage tank 34; each group of the spiral finned tubes 23 is arranged in a vertical snake-shaped structure, so that the passing stroke of mixed gas can be increased, the heat exchange area is increased, and the condensation efficiency is improved; the four cooling fans 24 are used for rapidly condensing the hot mixed gas to separate the light oil from the combustible gas; the inside of the gas-liquid separation tank 19 contains a water seal device to prevent the mixed gas from entering the heavy oil outlet pipe. The oil-water temporary storage tank 32 is internally divided into a heavy oil region and a light oil water region which are not communicated.

The shell of the gas-liquid separation tank 19 and the first end of the shell 22 are fixedly connected with the sixth installation part and the seventh installation part of the base 7 respectively, the shell of the shunt pipe 20 and the second end of the shell 22 are fixedly connected, the shell of the spiral finned tube 23 and the third end of the shell 22 are fixedly connected, the cooling fan 24 and the fourth end of the shell 22 are fixedly connected, the oil-water temporary storage tank 32 and the combustible gas temporary storage tank 34 are fixedly connected with the fifth end and the sixth end of the shell 22 respectively, the oil-water temporary storage tank 32 is arranged on one side, such as the left end, and the combustible gas temporary storage tank 34 is arranged on the other side, such as the right end.

The first end of gas-liquid separation jar 19 and the second end of outlet duct seal cover 18 are connected, the second end of gas-liquid separation jar 19 and the first end of shunt tubes 20 are connected, the third end of gas-liquid separation jar 19 is equipped with first outlet pipe 30, first outlet pipe 30 and the first end of profit jar 32 of keeping in are connected, the second end of shunt tubes 20 and the first end of spiral finned tube 23 are connected, the second end of spiral finned tube 23 and the first end of gas-liquid separation pipe 21 are connected, the second end and the third end of gas-liquid separation pipe 21 are equipped with combustible gas outlet pipe 33 and second outlet pipe 31 respectively, combustible gas outlet pipe 33 and combustible gas jar 34 of keeping in are connected, the second end of second outlet pipe 31 and profit jar 32 of keeping in is connected.

The driving assembly, as shown in fig. 7, comprises a large gear 17, a small gear 26, a speed reducer 27, a large belt pulley 28, a driving belt 29, a driving motor 35 and a small belt pulley 36; the driving motor 35 intermittently and periodically rotates forward and backward, and the reaction chamber 16 can be indirectly driven to rotate during rotation, so that the anaerobic pyrolysis of the household garbage in the reaction chamber 16 is more sufficient, and the reaction speed is accelerated.

The shell of the driving motor 35 and the shell of the speed reducer 27 are fixedly connected with the fourth mounting part and the fifth mounting part of the base 7 respectively, the output shaft of the driving motor 35 is connected with the first end of the small belt pulley 36, the second end of the small belt pulley 36 is connected with the first end of the large belt pulley 28 through the transmission belt 29, the second end of the large belt pulley 28 is connected with the first end of the speed reducer 27, the second end of the speed reducer 27 is connected with the first end of the small gear 26, the second end of the small gear 26 is meshed with the first end of the large gear 17, and the second end of the large gear 17 is fixedly connected with the outside of the second side of the reaction.

In a preferred embodiment of the present invention, a process for ultra high frequency anaerobic pyrolysis of household waste, comprising five major parts: feeding, heating, anaerobic pyrolysis, collection and deslagging.

The method of the ultrahigh frequency anaerobic pyrolysis device for household garbage of the present invention is further described with reference to the following examples:

as shown in fig. 9, the ultrahigh frequency anaerobic pyrolysis method for domestic garbage is realized by the following steps:

s1, feeding: opening the hydraulic gate valve 9, sending the crushed and screened household garbage into the shaftless screw conveyor 2 through the feeding hopper 10, pushing the crushed and screened household garbage into the reaction chamber 16 through the shaftless screw conveyor 2, and closing the hydraulic gate valve 9 connected with the feeding hopper 10 to enable the reaction chamber 16 to be a full-sealing structure and prepare for subsequent treatment.

S2, heating: and starting a heating assembly with a heating coil 38, heating the temperature of the reaction chamber 16 to 700-800 ℃, and providing heat for anaerobic pyrolysis of the household garbage in the reaction chamber 16.

S3, anaerobic pyrolysis: the driving motor 35 is started, the small belt pulley 36 connected with the output shaft of the driving motor 35, the transmission belt 29, the large belt pulley 28, the speed reducer 27 and the small gear 26 are used for indirectly and positively rotating the reaction chamber 16 under the driving of the large gear 17 according to a certain rule, and the crushed and sieved household garbage in the reaction chamber 16 moves left and right and rotates to throw objects under the action of the positive inclined paddle 43 and the negative inclined paddle 42, so that the crushed and sieved household garbage is subjected to accelerated pyrolysis. The temperature in the reaction chamber 16 is stably controlled to be about 600 ℃ during the stirring process, in a preferred embodiment, the temperature in the reaction chamber is controlled to be 580 ℃ to 620 ℃, and the crushed and screened household garbage generates mixed gas and solid slag in the anaerobic environment in the reaction chamber 16, wherein the mixed gas comprises heavy oil gas, light oil gas, combustible mixed gas and water vapor.

S4, collecting: sending the mixed gas pyrolyzed from the reaction chamber 16 into the gas-liquid separation tank 19, converting the gaseous heavy oil into liquid through centrifugal impact in the gas-liquid separation tank 19, recovering the liquid through a first outlet pipe 30 arranged at a third installation part of the gas-liquid separation tank 19, and recovering the liquid to a heavy oil area of an oil-water temporary storage tank 32 connected with the first outlet pipe 30; the mixed gas is converted into liquid light oil, water and combustible mixed gas, and is transported into a gas-liquid separation pipe 21 through a shunt pipe 20 and a spiral finned tube 23 which are connected with a gas-liquid separation tank 19, is separated through the gas-liquid separation pipe 21 and is recovered through a combustible gas outlet pipe 33 and a second outlet pipe 31 which are arranged at a second end and a third installation part, and is respectively recovered into a combustible gas temporary storage tank 34 connected with the combustible gas outlet pipe 33 and a light oil area of an oil-water temporary storage tank 32 connected with the second outlet pipe 31.

S5, deslagging: the gate valve 6 located at the lower part of the slag outlet 5 is opened, solid slag is continuously moved and thrown down in the direction of the gate outlet 5 through continuous reversal of the reaction chamber 16, meanwhile, the four slag shoveling hoppers 41 located on the periphery of the inner wall of the first partition chamber shovels the solid slag into the slag inlet 40 located in the reaction chamber 16, so that the solid slag is sent into the inner barrel of the shaftless screw conveyor 2, the solid slag is pushed to the position of the slag outlet 5 through rotation of the shaftless screw conveyor 2, and the solid slag is discharged through the gate valve 6. Wherein, the shaftless screw conveyor 2 is in a feeding state when rotating forwards, and the shaftless screw conveyor 2 is in a slag discharging state when rotating backwards.

Compared with the prior art, the invention has the following advantages:

1. the invention adopts the anaerobic pyrolysis technology to treat the household garbage, and toxic and harmful gas, dioxin pollutants and the like can not be generated.

2. The invention adopts ultrahigh frequency heating, any pyrolysis process needs heating, and the ultrahigh frequency heating does not generate toxic and harmful gas, does not cause secondary pollution, and does not need a dust removal system.

3. According to the invention, an ultrahigh frequency heating system is adopted, the reaction chamber is intermittently and periodically rotated forwards and backwards in a working state, the crushed household garbage moves left and right in the reaction chamber through the forward inclined paddle and the backward inclined paddle, the temperature of the four heating areas can be automatically regulated by the heating system through the temperature sensors according to the situation of the material in the four heating areas simulated by the computer, and the energy is saved and the emission is reduced.

4. The present invention adopts specially made feeding and discharging shaftless screw conveyer, and the feeding hopper and the slag outlet have sealed valves to avoid air leakage.

5. The cooling system of the invention adopts the spiral finned tube, has larger heat exchange surface and smaller occupied area than the common light tube condenser.

6. The product of the invention is carbon residue, heavy oil, light oil, combustible gas and water, wherein the carbon residue can be used as building aggregate and used for manufacturing environment-friendly bricks, the heavy oil and the light oil can be sold as fuel oil raw materials, and the combustible gas mainly comprises methane and can be used for heating, generating electricity or serving as a heat source.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the spirit of the present invention shall fall within the protection scope defined by the claims of the present invention.