1. A sealed rotary low-moisture coke quenching and discharging device is characterized by comprising a plurality of internal combustion vertical carbonization furnace units which are arranged in parallel, a coke quenching water pipeline unit and a controller (17); each internal combustion vertical carbonization furnace unit comprises a water-cooled wall heat exchanger (1), a water jacket heat exchanger (2), a coke discharging bin (3) and a scraper conveyor (8) which are sequentially connected from top to bottom; the coke discharging bin (3) is provided with a distribution hydraulic gate valve (4), a hydraulic coke pusher (5) and a sealed rotary low-moisture coke quenching and discharging device (6); a plurality of thermal resistors (16) are uniformly distributed on the coke discharging bins (3) at the upper side and the lower side of the sealed rotary low-moisture coke quenching and discharging device (6);

the sealed rotary type low-moisture coke quenching and discharging device (6) comprises a motor (9), a speed reducer (10), a sealed rotary type low-moisture coke quenching and discharging device shell (11), a valve core (12) and a plurality of low-moisture coke quenching spray nozzles (7); a plurality of low-moisture coke quenching spray nozzles (7) are embedded in a sealed rotary low-moisture coke quenching and discharging device shell (11), a motor (9) and a speed reducer (10) are respectively assembled on a driving end of the sealed rotary low-moisture coke quenching and discharging device shell (11), a valve core (12) is assembled in the sealed rotary low-moisture coke quenching and discharging device shell (11), the valve core (12) is installed on a driving shaft of the motor (9), and rotates in the sealed rotary low-moisture coke quenching and discharging device shell (11) under the driving of the motor (9);

the coke quenching water pipeline unit is communicated with the low-moisture coke quenching spray nozzles (7), and the controller (17) is respectively connected with the coke quenching water pipeline unit and a plurality of thermal resistors (16) arranged on the coke discharging bin (3) through signal lines, so that the monitoring and control of the temperature in the coke quenching water pipeline unit and the coke discharging bin (3) are realized.

2. The sealed rotary type low moisture coke quenching and discharging device of claim 1, wherein the coke quenching water pipeline unit comprises a coke quenching water header pipe (18), and a flow meter (13) and a regulating valve (14) are sequentially arranged on the coke quenching water header pipe (18) and are used for detecting and controlling the flow rate of the coke quenching water in the coke quenching water header pipe (18).

3. The sealed rotary type low-moisture coke quenching and discharging device as claimed in claim 2, wherein the output ends of the coke quenching water main pipes (18) are respectively communicated with the input ends of the low-moisture coke quenching spray nozzles (7) in the sealed rotary type low-moisture coke quenching and discharging device shell (11) through a plurality of metal hoses (19).

4. A sealed rotary type low moisture coke quenching and discharging device as claimed in claim 3, wherein the solenoid valves (15) are respectively installed on the branch pipes of the plurality of metal hoses (19).

5. The sealed rotary type low-moisture coke quenching and discharging device as claimed in claim 4, wherein the controller (17) is a PLC controller, and the controller (17) is respectively connected with the flow meter (13), the regulating valve (14), the electromagnetic valve (15) and a plurality of thermal resistors (16) arranged on the coke discharging bin (3) through signal lines.

6. The sealed rotary type low-moisture coke quenching and discharging device as claimed in claim 1, wherein the nozzle directions of a plurality of low-moisture coke quenching spray nozzles (7) in the sealed rotary type low-moisture coke quenching and discharging device shell (11) are all arranged towards the valve core (12).

7. The sealed rotary type low-moisture coke quenching and discharging device as claimed in claim 1, wherein the valve core (12) comprises a central shaft and a plurality of valve plates, the plurality of valve plates are respectively arranged along the circumference of the shaft body of the central shaft, and the adjacent valve plates are connected through a connecting rod; the central shaft is connected with a driving shaft of the motor, and the motor drives a plurality of valve plates on the central shaft to rotate.

8. A sealed rotary low moisture coke quenching and discharging device according to claim 1, characterized in that the coke discharging bin (3) comprises a first hopper, a second hopper, a third hopper and a fourth hopper; the first hopper and the second hopper are arranged in parallel, the feeding ports of the first hopper and the second hopper are respectively connected with the outlet of the water jacket heat exchanger (2), the discharging ports of the first hopper and the second hopper are respectively connected with the feeding port of the third hopper, the discharging port of the third hopper is connected with the feeding port of the fourth hopper, and the discharging port of the fourth hopper is connected with the scraper conveyor (8); an electro-hydraulic gate valve (4) is assembled at the discharge outlets of the first hopper and the second hopper, a hydraulic coke pusher (5) is assembled at the feed inlet of the third hopper, and a sealed rotary low-moisture coke quenching and discharging device (6) is assembled at the joint of the third hopper and the fourth hopper.

Background

The method takes Jurassic period non-caking coal and weak caking coal as raw materials to produce high-quality semi-coke and simultaneously obtains more coal tar as a target product, and the basic process comprises the following steps: a medium-low temperature-internal heating-gas heat carrier-isolated air pyrolysis process. The pyrolysis temperature is controlled to be 650-750 ℃, and the incandescent semi coke is cooled to below 260 ℃ through a water jacket and the like. At present, the subsequent sealed cooling coke discharging basically adopts water seal sealed cooling, namely water coke scooping, and the water content is generally 18-20%. The semi-coke with excessive water needs to be dried by direct combustion of coal gas, which consumes energy and increases pollution. The coke quenching method has the advantages that the coke quenching time is short, moisture is not uniformly contacted with the semi-coke, uniform coke quenching cannot be guaranteed, the semi-coke is cooled externally and internally, the problems of high temperature, low moisture, poor sealing of a coke discharging structure and the like of partial semi-coke exist, and great hidden dangers are brought to subsequent conveying and storage, such as belt burning, stacking spontaneous combustion and the like, and the moisture is generally 6-8%. The complete dry quenching technology is not mature, the existing stage is not suitable for semi coke production, the particle size of the raw materials of the coal as fired is required to be large to ensure the air permeability due to pyrolysis of the vertical furnace, the produced semi coke particles are large, the semi coke cannot be completely cooled by quenching heat exchange, and the semi coke with zero moisture has large dust treatment difficulty in the conveying and using processes and large spontaneous combustion risk in the stacking process.

Disclosure of Invention

Aiming at the problems of energy consumption and pollution increase caused by basically adopting water seal sealing for cooling and coke discharging in the prior art, the invention provides the sealed rotary type low-moisture coke quenching and discharging device which is simple and convenient to operate and effectively solves the problems of uneven coke quenching, false quenching of heat clamping, uneven moisture and the like in the prior art.

The invention is realized by the following technical scheme:

a sealed rotary low-moisture coke quenching and discharging device comprises a plurality of internal combustion vertical carbonization furnace units which are arranged in parallel, a coke quenching water pipeline unit and a controller; each internal combustion vertical carbonization furnace unit comprises a water-cooled wall heat exchanger, a water jacket heat exchanger, a coke discharging bin and a scraper machine which are sequentially connected from top to bottom; the coke discharging bin is provided with a hydraulic gate valve, a hydraulic coke pusher and a sealed rotary low-moisture coke quenching and discharging device; a plurality of thermal resistors are uniformly distributed on the coke discharging bins on the upper side and the lower side of the sealed rotary low-moisture coke quenching and discharging device;

the sealed rotary low-moisture coke quenching and discharging device comprises a motor, a speed reducer, a shell of the sealed rotary low-moisture coke quenching and discharging device, a valve core and a plurality of low-moisture coke quenching spray nozzles; the device comprises a plurality of low-moisture coke quenching spray nozzles, a motor, a speed reducer, a valve core, a motor, a speed reducer, a motor, a valve core and a water pump, wherein the low-moisture coke quenching spray nozzles are embedded in a shell of a sealed rotary low-moisture coke quenching and discharging device;

the coke quenching water pipeline unit is communicated with the low-moisture coke quenching spray nozzles, and the controller is respectively connected with the coke quenching water pipeline unit and the plurality of thermal resistors arranged on the coke discharging bin through signal lines, so that the monitoring and control of the temperature in the coke quenching water pipeline unit and the temperature in the coke discharging bin are realized.

Preferably, the coke quenching water pipeline unit comprises a coke quenching water main pipe, and a flowmeter and an adjusting valve are sequentially arranged on the coke quenching water main pipe and used for detecting and controlling the flow of coke quenching water in the coke quenching water main pipe.

Furthermore, the output end of the coke quenching water main pipe is respectively communicated with the input end of a low-moisture coke quenching spray nozzle in the shell of the sealed rotary low-moisture coke quenching and discharging device through a plurality of metal hoses.

Furthermore, electromagnetic valves are respectively arranged on the branch pipes of the metal hoses.

Preferably, the controller is a PLC controller, and the controller is respectively connected with the flow meter, the regulating valve, the electromagnetic valve and a plurality of thermal resistors arranged on the coke discharging bin through signal lines.

Preferably, the nozzles of a plurality of low-moisture quenching spray nozzles in the shell of the sealed rotary low-moisture quenching and coke-discharging device are arranged towards the valve core.

Preferably, the valve core comprises a central shaft and a plurality of valve plates, the valve plates are respectively arranged along the circumferential direction of the shaft body of the central shaft, and the adjacent valve plates are connected through a connecting rod; the central shaft is connected with a driving shaft of the motor, and the motor drives a plurality of valve plates on the central shaft to rotate.

Preferably, the coke discharging bin comprises a first hopper, a second hopper, a third hopper and a fourth hopper; the first hopper and the second hopper are arranged in parallel, the feeding ports of the first hopper and the second hopper are respectively connected with the outlet of the water jacket heat exchanger, the discharging ports of the first hopper and the second hopper are respectively connected with the feeding port of the third hopper, the discharging port of the third hopper is connected with the feeding port of the fourth hopper, and the discharging port of the fourth hopper is connected with the scraper conveyor; the electro-hydraulic gate valve is assembled at the discharge outlets of the first hopper and the second hopper, the hydraulic coke pusher is assembled at the feed inlet of the third hopper, and the sealed rotary low-moisture coke quenching and discharging device is assembled at the joint of the third hopper and the fourth hopper.

Compared with the prior art, the invention has the following beneficial technical effects:

the invention provides a sealed rotary low-moisture coke quenching and discharging device, which is characterized in that a sealed rotary low-moisture coke quenching and discharging device is assembled on a coke discharging bin in an internal combustion vertical carbonization furnace unit, the sealed rotary low-moisture coke quenching and discharging device is provided with a spray head for spraying coke quenching water and a valve core with a rotating function, and when the valve core rotates, the coke quenching water can be effectively sprayed onto semi-quenched and stirred semi-quenched semi-coke, so that the semi-quenched semi-coke can fully absorb moisture to reduce the temperature and can uniformly absorb moisture; the coke quenching water can be uniformly sprayed onto the semi-coke through the rotating valve core, so that the problems of uneven coke quenching, false quenching due to heat clamping, uneven moisture and the like in the prior art are effectively solved.

Further, the water pipe unit of putting out the coke is including the female pipe of the water of putting out the coke, is equipped with flowmeter and governing valve on the female pipe of the water of putting out the coke in proper order for detect and control the flow of the water of putting out the coke in the female pipe of the water of putting out the coke, the female pipe of the water of putting out the coke can provide sufficient water of putting out the coke, has improved the quenching efficiency of blue charcoal, is equipped with flowmeter and governing valve on the female pipe of water of putting out the coke in proper order, carries out effective control to drawing out of the water of putting out the coke, avoids the too much intake of the water of putting out the coke to cause the energy waste.

Furthermore, the output end of the main coke quenching water pipe is respectively communicated with the input end of the low-moisture coke quenching spray nozzle in the shell of the sealed rotary low-moisture coke quenching and discharging device through a plurality of metal hoses, and the plurality of metal hoses are convenient for communicating the main coke quenching water pipe with the low-moisture coke quenching spray nozzle, so that the conveying of coke quenching water is improved.

Preferably, the branch pipes of the metal hoses are respectively provided with an electromagnetic valve, so that the coke quenching water in the metal hoses can be conveniently controlled.

Preferably still further, the controller adopts the PLC controller, and the controller passes through the signal line and links to each other with a plurality of thermal resistance that arrange on flowmeter, governing valve, solenoid valve and the row burnt storehouse respectively, and the controller can carry out the hole to the water of putting out the coke in the quenching jellyfish pipe according to the temperature of blue charcoal in the row burnt storehouse is effectual, has guaranteed blue charcoal moisture, temperature at reasonable within range, has guaranteed to carry, has stacked environmental protection problems such as system safety and stability operation and not produce raise dust.

Furthermore, the nozzles of a plurality of low-moisture quenching spray nozzles in the shell of the sealed rotary type low-moisture quenching and coke discharging device are arranged towards the valve core, so that the quenched coke water sprayed out from the low-moisture quenching spray nozzles can be uniformly sprayed onto the semi-coke through the rotary valve core.

Further, the valve core comprises a central shaft and a plurality of valve plates, the valve plates are respectively arranged along the circumferential direction of the shaft body of the central shaft, and the adjacent valve plates are connected through a connecting rod; the central shaft is connected with a driving shaft of the motor, the motor drives a plurality of valve plates on the central shaft to rotate, and the valve core is driven by the motor to have a rotating function, so that the coke quenching water sprayed from the low-moisture coke quenching spray nozzle can be effectively and uniformly sprayed onto the semi coke.

Further, the coke discharging bin comprises a first hopper, a second hopper, a third hopper and a fourth hopper; the first hopper and the second hopper are arranged in parallel, the feeding ports of the first hopper and the second hopper are respectively connected with the outlet of the water jacket heat exchanger, the discharging ports of the first hopper and the second hopper are respectively connected with the feeding port of the third hopper, the discharging port of the third hopper is connected with the feeding port of the fourth hopper, and the discharging port of the fourth hopper is connected with the scraper conveyor; the electro-hydraulic gate valve is assembled at the discharge outlets of the first hopper and the second hopper, the hydraulic coke pusher is assembled at the feed inlet of the third hopper, the sealed rotary low-moisture coke quenching and discharging device is assembled at the joint of the third hopper and the fourth hopper, and the electro-hydraulic gate valve can effectively control the blue charcoal discharge speed; the hydraulic coke pusher also plays a role in controlling the discharging speed of the semi-coke, and simultaneously plays a role in sealing the third hopper, so that energy loss is avoided, and the sealed rotary low-moisture coke quenching and discharging device is convenient for quenching the semi-quenched semi-coke by rotary spraying of coke quenching water.

Drawings

FIG. 1 is a coke discharging front view of a sealed rotary low-moisture coke quenching and discharging device according to the invention;

FIG. 2 is a left side view of coke discharging of the sealed rotary low-moisture coke quenching and discharging device of the present invention;

FIG. 3 is a front view of a sealed rotary low moisture coke quenching and discharging device of the present invention;

FIG. 4 is a left side view of the sealed rotary low moisture coke quenching and discharging device of the present invention;

FIG. 5 is a schematic view of a water spray system of a sealed rotary low moisture coke quenching and discharging device.

In the figure: 1-a water-cooled wall heat exchanger; 2-water jacket heat exchanger; 3-discharging coke bin; 4-electro-hydraulic gate valves; 5-hydraulic coke pusher; 6-sealing the rotary low-moisture coke quenching and discharging device; 7-low moisture quenching spray nozzles; 8-a scraper conveyor; 9-a motor; 10-a speed reducer; 11-a sealed rotary low moisture coke quenching and discharging device shell; 12-a valve core; 13-a flow meter; 14-a regulating valve; 15-an electromagnetic valve; 16-thermal resistance; 17-a controller; 18 quenching a coke water main pipe; 19-metal hose.

Detailed Description

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The invention is described in further detail below with reference to the accompanying drawings:

referring to fig. 1 and 2, in one embodiment of the present invention, a sealed rotary low-moisture coke quenching and discharging device is provided, which is simple and convenient to operate, and effectively solves the problems of uneven quenching, false quenching of heat entrainment, uneven moisture, etc. in the prior art.

Specifically, the device comprises a plurality of internal combustion vertical carbonization furnace units which are arranged in parallel, a coke quenching water pipeline unit and a controller 17; each internal combustion vertical carbonization furnace unit comprises a water-cooled wall heat exchanger 1, a water jacket heat exchanger 2, a coke discharging bin 3 and a scraper conveyor 8 which are sequentially connected from a red-hot semi-coke inlet to a cooling semi-coke outlet from top to bottom; the coke discharging bin 3 is provided with a distribution hydraulic gate valve 4, a hydraulic coke pusher 5 and a sealed rotary low-moisture coke quenching and discharging device 6; the inner wall of the coke discharging bin 3 has a certain inclination angle; a plurality of thermal resistors 16 are uniformly arranged on the coke discharging bins 3 on the upper side and the lower side of the sealed rotary low-moisture coke quenching and discharging device 6;

referring to fig. 3 and 4, the sealed rotary type low-moisture coke quenching and discharging device 6 comprises a motor 9, a speed reducer 10, a sealed rotary type low-moisture coke quenching and discharging device shell 11, a valve core 12 and a plurality of low-moisture coke quenching spray nozzles 7; a plurality of low-moisture quenching spray nozzles 7 are embedded in a sealed rotary low-moisture quenching and coke discharging device shell 11, a motor 9 and a speed reducer 10 are respectively assembled on a driving end of the sealed rotary low-moisture quenching and coke discharging device shell 11, a valve core 12 is assembled in the sealed rotary low-moisture quenching and coke discharging device shell 11, the valve core 12 is installed on a driving shaft of the motor 9 and rotates in the sealed rotary low-moisture quenching and coke discharging device shell 11 under the driving of the motor 9;

referring to fig. 5, the coke quenching water pipeline unit is communicated with a plurality of low moisture coke quenching spray nozzles 7, and the controller 17 is respectively connected with the coke quenching water pipeline unit and a plurality of thermal resistors 16 arranged on the coke discharging bin 3 through signal lines, so as to monitor and control the temperature in the coke quenching water pipeline unit and the coke discharging bin 3.

Specifically, the coke quenching water pipeline unit comprises a coke quenching water main pipe 18, wherein a flowmeter 13 and a regulating valve 14 are sequentially arranged on the coke quenching water main pipe 18 and used for detecting and controlling the flow of coke quenching water in the coke quenching water main pipe 18, the coke quenching water main pipe 18 can provide sufficient coke quenching water, the coke quenching efficiency of semi coke is improved, the flowmeter 13 and the regulating valve 14 are used for effectively controlling the leading-out of the coke quenching water, and the energy waste caused by too much intake of the coke quenching water is avoided.

Specifically, the output end of the main coke quenching water pipe 18 is respectively communicated with the input end of the low-moisture coke quenching spray nozzle 7 in the sealed rotary low-moisture coke quenching and discharging device shell 11 through a plurality of metal hoses 19, the metal hoses 19 are convenient for communicating the main coke quenching water pipe 18 with the low-moisture coke quenching spray nozzle 7, and the conveying of coke quenching water is improved.

Specifically, electromagnetic valves 15 are respectively arranged on branch pipes of the metal hoses 19, and the electromagnetic valves 15 are positioned on each branch pipe in front of the inlet of the low-moisture coke quenching spray nozzle 7, so that the coke quenching water in the metal hoses 19 can be conveniently controlled.

Specifically, controller 17 adopts the PLC controller, and controller 17 passes through the signal line and links to each other with flowmeter 13, governing valve 14, solenoid valve 15 and a plurality of thermal resistance 16 of arranging on the row coke bin 3 respectively, and controller 17 can carry out the hole to the coke-quenching water in the main pipe of coke-quenching water 18 according to the temperature of blue charcoal in the row coke bin is effectual, has guaranteed blue charcoal moisture, temperature at reasonable within range, has guaranteed to carry, has stacked environmental protection problems such as system safety and stability operation and not produce raise dust.

Specifically, the nozzles of a plurality of low-moisture quenching spray nozzles 7 in a sealed rotary type low-moisture quenching and coke discharging device shell 11 are all arranged towards a valve core 12, so that the quenched coke water sprayed out from the low-moisture quenching spray nozzles 7 can be uniformly sprayed onto semi coke through the rotary valve core 12.

Specifically, the valve core 12 comprises a central shaft and a plurality of valve plates, the plurality of valve plates are respectively arranged along the circumferential direction of the shaft body of the central shaft, and the adjacent valve plates are connected through a connecting rod; the central shaft is connected with a driving shaft of a motor, the motor drives a plurality of valve plates on the central shaft to rotate, and the valve core 12 is driven by the motor to have a rotating function, so that coke quenching water sprayed from the low-moisture coke quenching spray nozzle 7 can be effectively and uniformly sprayed onto semi coke.

Specifically, the coke discharging bin 3 comprises a first funnel, a second funnel, a third funnel and a fourth funnel; the first hopper and the second hopper are arranged in parallel, the feeding ports of the first hopper and the second hopper are respectively connected with the outlet of the water jacket heat exchanger 2, the discharging ports of the first hopper and the second hopper are respectively connected with the feeding port of the third hopper, the discharging port of the third hopper is connected with the feeding port of the fourth hopper, and the discharging port of the fourth hopper is connected with the scraper conveyor 8; the electro-hydraulic gate valve 4 is assembled at the discharge outlets of the first hopper and the second hopper, the hydraulic coke pusher 5 is assembled at the feed inlet of the third hopper, the sealed rotary low-moisture coke quenching and discharging device 6 is assembled at the joint of the third hopper and the fourth hopper, and the electro-hydraulic gate valve 4 can effectively control the blue coke discharging speed; the hydraulic coke pusher 5 also plays a role in controlling the discharging speed of the semi-coke, and simultaneously plays a role in sealing the third hopper, so that energy loss is avoided, and the sealed rotary low-moisture coke quenching and discharging device 6 is convenient for quenching the semi-quenched semi-coke by rotary spraying of coke quenching water.

The invention relates to a low moisture coke quenching device for sealing and discharging coke in a low temperature pyrolysis process in an internal combustion vertical furnace by using low metamorphic coal, wherein a sealed rotary low moisture coke quenching device 6 is arranged below a coke discharging bin 3, temperature measuring points are arranged above and below the coke quenching device, and the coke quenching water spraying amount is controlled by an electromagnetic valve 15 in an interlocking manner according to the temperature of semi coke. The sealed rotary low-moisture coke quenching device 6 consists of a sealed rotary coke discharging and quenching integrated valve and a control water supply system, wherein a low-moisture coke quenching spray nozzle 7 is arranged on the upper side of a shell of the sealed rotary valve and is connected with a water supply distribution electromagnetic valve 15 and the like through a metal hose 19.

The semi-quenching rotary valve sprays the quenching water to semi-quenching blue carbon in the rotary valve rotating process, so that the semi-quenching rotary valve is beneficial to fully absorbing moisture and reducing the temperature of the semi-quenching rotary valve, is also beneficial to uniformly absorbing moisture of the semi-quenching rotary valve, ensures that the temperature of the semi-quenching rotary valve is reduced to be below 80 ℃, controls the quenching moisture to be below 12 percent, and ensures that the quenching semi-quenching rotary valve is uniform without carrying red heart semi-quenching blue carbon; the invention adopts sealed rotary coke discharging to ensure the sealing performance of the system in the coke discharging process; the invention ensures that the moisture and the temperature of the semi-coke are in a reasonable range, namely the moisture is lower than 12 percent and the temperature is lower than 80 ℃, and ensures that a conveying and stacking system is operated safely and stably and does not generate dust and other environmental protection problems. The invention not only recovers the heat of the high-temperature semi-coke, but also improves the quality of the semi-coke.

The low-moisture coke quenching spray nozzle 7 can be used for introducing water for quenching coke, nitrogen, carbon dioxide, raw coke oven gas produced by a carbonization furnace and the like.

In the use of the sealed rotary low-moisture coke quenching and discharging device, the incandescent blue coke continuously passes through the water-cooled wall heat exchanger 1, the water jacket heat exchanger 2 and the coke discharging bin 3, the temperature of the blue coke is reduced to 260 ℃, then the electro-hydraulic gate valve 4 and the hydraulic coke pusher 5 are started, the semi-quenched blue coke enters the rotary sealed rotary low-moisture coke quenching and discharging device 6, the regulating valve 14 and the electromagnetic valve 15 are sequentially used for delivering water to the low-moisture coke quenching spray nozzle 7 through the coke quenching water main pipe 18 and the metal hose 19, the water spraying amount is controlled according to the thermal resistance 16 of the coke discharging bin 3 on the sealed rotary low-moisture coke quenching and discharging device 6 and the interlocking of the controller 17, the atomized coke quenching water is uniformly sprayed on the stirred semi-quenched blue coke, the coke spraying amount is controlled again according to the blue coke temperature of the coke discharging bin 3 on the sealed rotary low-moisture coke quenching and discharging device 6, the temperature of the blue coke is reduced to below 80 ℃, the quenching water content is controlled below 12%.

The invention not only recovers the heat of the high-temperature semi coke, but also improves the water absorption and cooling effects of the semi coke. After water is directly sprayed on the surface of the high-temperature semi-coke, water can be gasified firstly and cannot be directly or quickly absorbed, and finally the semi-coke is subjected to heat clamping and false extinguishing, so that the stacking spontaneous combustion disaster is caused, the dust generated by too low water content is large, and the treatment difficulty is large. Secondly, water is directly sprayed on the surface of the semi-coke in the high-temperature downward moving process, the contact surface of the water and the semi-coke is small, the uniform and effective water absorption quenching is not facilitated, and the water content of the semi-coke is not favorably in a reasonable range.

The invention has the advantages of energy conservation, emission reduction, sealing and environmental protection in the coke quenching process, improves the coke quenching effect and the semi coke quality, and prevents the stacking spontaneous combustion disaster caused by poor coke quenching and dust emission caused by over-low moisture.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the embodiments of the invention without departing from the spirit and scope of the invention, which is to be covered by the claims.