1. The integrated device for dioxin inhibition and pollutant online monitoring is characterized by comprising a pyrolysis gasification furnace, wherein the pyrolysis gasification furnace comprises a garbage feeding system and a pyrolysis cavity (1) which are arranged in the vertical direction, a condensing device (2) which is arranged in the horizontal direction and a chlorobenzene real-time detection sensor (3); the upper end of the pyrolysis cavity (1) is fixedly connected with a garbage feeding system, the garbage feeding system comprises a spiral feeder (4), and the lower end of the pyrolysis cavity (1) is sequentially provided with a drawable grate (15) and a discharging barrel (5) for ash falling; a feeding visual measuring cylinder (7) and a feeding radiator (8) are fixedly connected below the spiral feeder (4) in sequence; pyrolysis chamber (1) externally mounted has heater (9), install on heater (9) and control temperature thermocouple (10), pyrolysis chamber (1) middle part position has two air inlets (11), and pyrolysis chamber (1) upper right portion has three temperature thermocouple (12) that can really measure temperature in pyrolysis chamber (1) and three trachea (13) that can really sample pyrolysis chamber (1) mesosphere.

The condensing device (2) is connected with the pyrolysis cavity (1) through an air pipe and is detachably arranged on the right side of the pyrolysis cavity (1), and a heater (9) and a powder feeding hole (14) for adding a dioxin retardant are arranged on the air pipe; the condensing device (2) is provided with a gas-liquid separation pipe (19) and a temperature control thermocouple (10), a heater (9) is arranged outside the gas-liquid separation pipe (19), and the temperature control thermocouple (10) is used for monitoring the temperature of the condensing device (2) so that a filter screen (20) in the condensing device (2) does not condense tar; the lower end of the condensing device (2) is provided with a tar outlet (16) and an oil water barrel (18) which are detachably connected, so that the pipe wall is convenient to clean; the condensing unit (2) is provided with a water-cooling sleeve for tar condensation, and two ends of the water-cooling sleeve are fixedly connected with water-cooling interfaces (17) for tar condensation.

And the chlorobenzene real-time detection sensor (3) is positioned at a gas outlet of the condensing device (2) and is used for detecting the gas pollutants generated by pyrolysis in real time.

2. The integrated device for dioxin suppression and online monitoring of pollutants according to claim 1, characterized in that it further comprises a temperature detection device, which is a thermocouple thermometer, comprising three temperature thermocouples (12) for measuring the temperatures of the upper, middle and lower layers in the pyrolysis chamber (1) and two thermocouples (10) for controlling the temperature.

3. The integrated device for dioxin suppression and online monitoring of pollutants according to claim 1, wherein the garbage feeding system in the device further comprises a variable frequency motor (6) fixedly connected to the screw feeder (4), and the feeding rate is controlled by the frequency of the variable frequency motor (6) connected to the screw. The spiral feeder (4) is internally provided with a stirring device, so that stacking and bridging of organic solid wastes in the feeding process can be effectively prevented. The feeding visual measuring cylinder (7) below the spiral feeder (4) is used for observing the garbage blanking condition, and the feeding radiator (8) below the feeding visual measuring cylinder (7) is used for preventing one end of the screw close to the hearth from deforming under the action of high temperature.

4. The integrated device for dioxin suppression and online monitoring of pollutants according to claim 1, characterized in that a heater (9) and the pyrolysis chamber (1) form a heating system, the heater (9) consists of three sections of electric heating modules for respectively heating the upper, middle and lower layers of the pyrolysis chamber, and the three sections of electric heating modules are fixedly installed outside the pyrolysis chamber (1).

5. The integrated device for dioxin suppression and online monitoring of pollutants according to claim 2, characterized by further comprising a centralized control system including a temperature control system (21) for in-furnace temperature control and temperature control of the filtered oil as well as a temperature acquisition system (22), a feed rate controller (23), a cooling water valve controller (24) and a centralized control screen (25); temperature control system (21) are used for controlling heater (9) temperature, temperature acquisition system (22) are used for gathering temperature-detecting device data, rate when feed rate controller (23) are used for controlling organic solid useless feeding, the water valve on cooling water valve controller (24) control water-cooling interface (17), the interpolation of cooling water when being used for pyrolysis oil condensation, centralized control screen (25) are used for temperature control system (21), temperature acquisition system (21), feed rate controller (23), cooling water valve controller (24) operating function.

Background

Due to the rapid development of socio-economy, people also have made more demands for high-quality life. However, while people enjoy abundant life, they continuously consume various natural resources, which inevitably generates a large amount of waste, most of which exist in cities as solid waste, and the conventional incineration technology has many limitations, such as high requirement for calorific value of garbage and NO_XAnd the difficult control of dioxin emission, etc., and thus a new technology is urgently needed to solve these problems.

The current municipal refuse disposal technologies mainly comprise sanitary landfill, high-temperature composting, direct incineration, pyrolysis gasification and the like, and different technologies are suitable for different treatment occasions. Among the numerous disposal technologies, pyrolysis gasification technology is currently the most promising technology.

The pyrolysis gasification technology is characterized in that the domestic garbage is directly converted into various products of gas, liquid and solid phases, so that the utilization mode of the domestic garbage is widened, the comprehensive utilization efficiency is improved, and the economical efficiency is obviously improved. Pyrolysis gasification is generally carried out in an anoxic or even anaerobic environment, the generation of a precursor of dioxin and de novo synthesis can be effectively inhibited, heavy metals in garbage can be melted in ash, and the emission of pollutants is effectively reduced compared with an incineration technology. However, the mechanism of dioxin generation in the pyrolysis gasification process is yet to be studied.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, the integrated device for the dioxin suppression and the pollutant online monitoring is provided, and the problems that the dioxin emission is difficult to control and the pollutant is difficult to monitor are solved.

In order to solve the technical problem, the solution of the invention is as follows: an integrated device for dioxin inhibition and pollutant online monitoring comprises a pyrolysis gasification furnace, wherein the pyrolysis gasification furnace comprises a garbage feeding system and a pyrolysis cavity which are arranged in the vertical direction, a condensing device and a chlorobenzene real-time detection sensor which are arranged in the horizontal direction; the upper end of the pyrolysis cavity is fixedly connected with a garbage feeding system, the garbage feeding system comprises a spiral feeder, and the lower end of the pyrolysis cavity is sequentially provided with a drawable grate and a discharging barrel for ash falling; a feeding visual measuring cylinder and a feeding radiator are fixedly connected below the spiral feeder in sequence; pyrolysis chamber externally mounted has the heater, install accuse temperature thermocouple on the heater, pyrolysis chamber middle part position has two air inlets, and pyrolysis chamber upper right portion has the temperature thermocouple of three true measurement pyrolysis chamber in temperature and the trachea of three true sampling pyrolysis chamber atmosphere.

The condensing device is connected with the pyrolysis cavity through an air pipe and is detachably arranged on the right side of the pyrolysis cavity, and a heater and a powder feeding hole for adding a dioxin retardant are arranged on the air pipe; the condensing device is provided with a gas-liquid separation pipe and a temperature control thermocouple, the heater is arranged outside the gas-liquid separation pipe, and the temperature control thermocouple is used for monitoring the temperature of the condensing device so that a filter screen in the condensing device does not condense tar; the lower end of the condensing device is provided with a tar outlet and an oil-water barrel which are detachably connected, so that the pipe wall is convenient to clean; the condensing unit is provided with a water-cooling sleeve for tar condensation, and water-cooling interfaces are fixedly connected to two ends of the water-cooling sleeve and used for tar condensation.

And the chlorobenzene real-time detection sensor is positioned at a gas outlet of the condensing device and used for detecting the gas pollutants generated by pyrolysis in real time.

Furthermore, the integrated device also comprises a temperature detection device which is a thermocouple thermometer and comprises three temperature measuring thermocouples for measuring the temperature of the upper layer, the middle layer and the lower layer in the pyrolysis cavity and two thermocouples for controlling the temperature.

Furthermore, the garbage feeding system in the integrated device also comprises a variable frequency motor fixedly connected with the spiral feeder, and the feeding speed is controlled by the frequency of the variable frequency motor connected with the screw. The spiral feeder is internally provided with the stirring device, so that stacking and bridging of organic solid wastes in the feeding process can be effectively prevented. The feeding visual measuring cylinder below the spiral feeder is used for observing the garbage blanking condition, and the feeding radiator below the feeding visual measuring cylinder is used for preventing one end, close to the hearth, of the screw from deforming under the action of high temperature.

Furthermore, a heater and a pyrolysis cavity in the integrated device form a heating system, the heater consists of three sections of electric heating modules, the three sections of electric heating modules are respectively used for heating the upper layer, the middle layer and the lower layer of the pyrolysis cavity, and the three sections of electric heating modules are fixedly installed outside the pyrolysis cavity.

Furthermore, the integrated device also comprises a centralized control system, wherein the centralized control system comprises a temperature control system for controlling temperature in the furnace and the temperature of the filtered oil, a temperature acquisition system, a feeding rate controller, a cooling water valve controller and a centralized control screen; the temperature control system is used for controlling the temperature of the heater, the temperature acquisition system is used for acquiring data of the temperature detection device, the feeding rate controller is used for controlling the rate of organic solid waste during feeding, the cooling water valve controller controls a water valve on the water cooling interface and is used for adding cooling water during condensation of pyrolysis oil, and the centralized control screen is used for operating the temperature control system, the temperature acquisition system, the feeding rate controller and the cooling water valve controller. The invention has the beneficial effects that: the integrated device for dioxin inhibition and pollutant online monitoring is provided with a plurality of temperature detection devices and gas collection devices, and a centralized control system controls collected data, pyrolysis oil in the pyrolysis gasification process can be condensed and collected, and gas, solid and liquid three-phase analysis is collected, so that the organic solid waste pyrolysis gasification process is more energy-saving, environment-friendly and visual.

According to the integrated device, garbage is uniformly fed through the feeding system and sequentially passes through the drying layer, the pyrolysis layer and the burnout layer to ensure that organic solid waste is completely pyrolyzed and gasified in the pyrolysis gasification furnace.

According to the integrated device, the organic solid waste is pyrolyzed in the pyrolysis gasification furnace, and the dioxin retardant is added at the same time, so that the generation of dioxin can be effectively reduced.

According to the integrated device disclosed by the invention, the concentration of pollutants can be monitored in real time by the tail gas through the chlorobenzene real-time detection sensor.

The integrated device adopts a spiral feeding mode, the height of the garbage pile in the furnace can be observed through the observation hole of the furnace body, a proper layered material layer is selected, and the furnace body is provided with a plurality of sampling ports, so that different pyrolysis parameters can be obtained according to the requirements.

According to the integrated device, the heating pipeline is arranged before pyrolysis tar enters the oil-water barrel through the condensing device and is collected, so that the pyrolysis tar with higher quality can be collected. But also can better simulate the actual industrial production application due to the characteristics of continuous feeding and the characteristics of the pyrolysis method of the stockpile.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic structural diagram of a pyrolysis gasifier, a waste feeding system, a temperature detection device, a heating system and a centralized control system in an integrated device for dioxin suppression and online monitoring of pollutants;

in the figure, 1, a pyrolysis cavity, 2, a condensing device, 3, a chlorobenzene real-time detection sensor, 4, a spiral feeder, 5, a discharge barrel, 6, a variable frequency motor, 7, a feeding visual measuring cylinder, 8, a feeding radiator, 9, a heater, 10, a temperature control thermocouple, 11, an air inlet, 12, a temperature measurement thermocouple, 13, an air pipe, 14, a powder feed inlet, 15, a drawable grate, 16, a tar outlet, 17, a water cooling interface, 18, an oil water barrel, 19, a gas-liquid separation pipe, 20, a filter screen, 21, a temperature control system, 22, a temperature acquisition system, 23, a feeding rate controller, 24, a cooling water valve controller, 25 and a centralized control screen.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. The invention is intended to cover alternatives, modifications, equivalents and alternatives which may be included within the spirit and scope of the invention as defined by the appended claims. Furthermore, in the following detailed description of the present invention, certain specific details are set forth in order to provide a better understanding of the present invention. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details.

As shown in fig. 1, the present invention provides an integrated device for dioxin suppression and pollutant on-line monitoring, which comprises a pyrolysis gasifier, wherein the pyrolysis gasifier comprises a garbage feeding system and a pyrolysis cavity 1 which are arranged in a vertical direction, a condensing device 2 and a chlorobenzene real-time detection sensor 3 which are arranged in a horizontal direction; the upper end of the pyrolysis cavity 1 is fixedly connected with a garbage feeding system, the garbage feeding system comprises a spiral feeder 4, and the lower end of the pyrolysis cavity 1 is sequentially provided with a drawable grate 15 and a discharging barrel 5 for ash falling; a feeding visual measuring cylinder 7 and a feeding radiator 8 are fixedly connected below the spiral feeder 4 in sequence; the external mounting in pyrolysis chamber 1 has heater 9, install accuse temperature thermocouple 10 on the heater 9, 1 middle part position in pyrolysis chamber has two air inlets 11, and 1 upper right portion in pyrolysis chamber has three temperature thermocouple 12 that can really measure the temperature in pyrolysis chamber 1 and three trachea 13 that can really sample atmosphere in pyrolysis chamber 1.

The condensing device 2 is connected with the pyrolysis cavity 1 through an air pipe and is detachably arranged on the right side of the pyrolysis cavity 1, and a heater 9 and a powder feeding hole 14 for adding a dioxin retardant are arranged on the air pipe; the condensing device 2 is provided with a gas-liquid separation pipe 19 and a temperature control thermocouple 10, a heater 9 is arranged outside the gas-liquid separation pipe 19, and the temperature control thermocouple 10 is used for monitoring the temperature of the condensing device 2 so that a filter screen 20 in the condensing device 2 does not condense tar; the lower end of the condensing device 2 is provided with a tar outlet 16 and an oil-water barrel 18 which are detachably connected, so that the pipe wall can be cleaned conveniently; the condensing unit 2 is provided with a water-cooling sleeve for tar condensation, and two ends of the water-cooling sleeve are fixedly connected with water-cooling interfaces 17 for tar condensation.

And the chlorobenzene real-time detection sensor 3 is positioned at a gas outlet of the condensing device 2 and is used for detecting the pyrolyzed gas pollutants in real time.

In order to monitor the temperature change in the pyrolysis and gasification process and to better adjust the working conditions, the device further comprises a temperature detection device which is a thermocouple thermometer and comprises three temperature thermocouples 12 for measuring the temperatures of the upper layer, the middle layer and the lower layer in the pyrolysis cavity 1 and two thermocouples 10 for controlling the temperature.

In order to ensure that the organic solid waste is uniformly fed and pyrolyzed completely, the garbage feeding system in the device also comprises a variable frequency motor 6 fixedly connected with the spiral feeder 4, and the feeding speed is controlled by the frequency of the variable frequency motor 6 connected with a screw. The spiral feeder 4 is internally provided with a stirring device, so that stacking and bridging of organic solid wastes in the feeding process can be effectively prevented. The feeding visual measuring cylinder 7 below the spiral feeder 4 is used for observing the garbage blanking condition, and the feeding radiator 8 below the feeding visual measuring cylinder 7 is used for preventing one end of the screw close to the hearth from deforming under the action of high temperature.

In order to analyze the organic solid waste by heating, a heater 9 and a pyrolysis cavity 1 in the device form a heating system, the heater 9 consists of three sections of electric heating modules, the upper layer, the middle layer and the lower layer of the pyrolysis cavity are respectively heated and used for increasing the atmosphere temperature of the pyrolysis cavity 1, and the three sections of electric heating modules are fixedly arranged outside the pyrolysis cavity 1.

In order to control various parameters in the organic solid waste pyrolysis gasification process, the device also comprises a centralized control system, wherein the centralized control system comprises a temperature control system 21 for controlling temperature in the furnace and controlling temperature of the filtered oil, a temperature acquisition system 22, a feeding rate controller 23, a cooling water valve controller 24 and a centralized control screen 25; the temperature control system 21 is used for controlling the temperature of the heater 9, the temperature acquisition system 22 is used for acquiring data of the temperature detection device, the feeding rate controller 23 is used for controlling the rate of organic solid waste during feeding, the cooling water valve controller 24 controls a water valve on the water cooling interface 17 and is used for adding cooling water during condensation of pyrolysis oil, and the centralized control screen 25 is used for operating the temperature control system 21, the temperature acquisition system 21, the feeding rate controller 23 and the cooling water valve controller 24.

The specific operation process of the integrated device for dioxin inhibition and pollutant online monitoring provided by the invention is as follows:

during operation, the organic solid wastes are placed in the screw feeder 4; the feeding rate is controlled by the feeding rate controller 23, under the action of the variable frequency motor 6 of the garbage feeding system, the garbage is conveyed to the pyrolysis cavity 1 through the upper part of the pyrolysis cavity 1, required distribution is conveyed through the air inlet 11, the domestic garbage is subjected to moisture removal through an upper drying layer in the pyrolysis furnace 1, then pyrolysis gasification is carried out on a middle pyrolysis layer in the pyrolysis furnace 1, and burnt ash enters the blanking port 5 through a lower burnout layer in the pyrolysis furnace 1; pyrolysis gas enters a condensing device 2 through a gas pipe to filter tar components, and then tail gas components are monitored through a chlorobenzene real-time detection sensor 3; while the household garbage is pyrolyzed and gasified, a dioxin retardant is added through the powder feeding hole 14 so as to achieve the purpose of inhibiting the generation of dioxin.

During operation, carrier gas is conveyed into the pyrolysis gasification furnace through the gas inlet 11, is heated to a required pyrolysis temperature through the pyrolysis cavity 1 by the three-section electric heating module, then sequentially passes through the drying layer, the pyrolysis layer and the burnout layer to enter the blanking port 5, and condensed tar enters the oil water barrel 18.

During operation, the temperature acquisition system 22 will acquire the temperature data of the temperature control thermocouple 10 and the temperature measurement thermocouple 12 at regular time and feed back the data to the temperature control system 21 to realize temperature control.

During operation, the chlorobenzene real-time detection sensor 3 can detect the concentration of chlorobenzene in tail gas in real time.

During operation, the feeding rate controller 23, the temperature control system 21 and the temperature acquisition system 22 are controlled through the centralized control screen 25, and the background records the working parameters and temperature data of the pyrolysis gasification device for a certain time.

According to the integrated device, garbage is uniformly fed through the feeding system and sequentially passes through the drying layer, the pyrolysis layer and the burnout layer to ensure that organic solid waste is completely pyrolyzed and gasified in the pyrolysis gasification furnace.

According to the integrated device disclosed by the invention, organic solid waste is pyrolyzed in the pyrolysis gasification furnace, and the dioxin retardant is added through the powder feed port, so that the generation of dioxin can be effectively reduced.

According to the integrated device disclosed by the invention, the concentration of pollutants can be monitored in real time by the tail gas through the chlorobenzene real-time detection sensor.

According to the integrated device, a spiral feeding mode is adopted, the furnace body is provided with the observation hole, the height of the garbage pile in the furnace can be observed through the observation hole of the furnace body, a proper layered material layer is selected, and the furnace body is provided with a plurality of sampling ports, so that different pyrolysis parameters can be obtained according to the requirements.

According to the integrated device, the heating pipeline is arranged before pyrolysis tar enters the oil-water barrel through the condensing device and is collected, so that the pyrolysis tar with higher quality can be collected. But also can better simulate the actual industrial production application due to the characteristics of continuous feeding and the characteristics of the pyrolysis method of the stockpile.

The above-described embodiments are intended to illustrate rather than to limit the invention, and modifications and variations of the disclosure provided herein within the spirit and scope of the claims are to be considered within the scope of the invention.