Continuous production line for producing activated carbon from microwave carbonized coal and its control method

Abstract

The present invention provides a continuous production line for producing activated carbon from coal by microwave carbonization and a control method thereof. The equipment includes a coal extrusion forming component for crushing and extruding coal blocks into coal briquettes of a set shape; a microwave heating component for microwave heating the coal briquettes to carbonize the coal briquettes; and an air treatment component for harmlessly treating the gas generated during the microwave heating of the coal briquettes and recovering the coal tar in the gas. The processing efficiency of the continuous production line for producing activated carbon from coal by microwave carbonization is improved, pollution is reduced, and the processing purpose of green and environmental protection is achieved.

Description

Technical Field

[0001] The invention relates to the field of microwave technology, and in particular to a continuous production line for preparing activated carbon from microwave carbonized coal and a control method thereof. Background Art

[0002] Activated carbon is an artificial carbon material product with a highly developed pore structure and a large internal surface area. Its most notable feature is adsorption, which can adsorb various substances from the gas phase or liquid phase. The technology of using coal as raw material to manufacture activated carbon has been gradually promoted. For example: Chinese Patent No. 201510589610.4 discloses a briquette activated carbon prepared with weakly caking coal as the main material and a preparation method and application thereof. It mainly discloses the use of caking coal to form briquettes, and carbonization and activation are carried out under high temperature environment. However, in the actual processing process, the molding of briquettes and the heating of briquettes to achieve carbonization and activation need to be carried out by different equipment, and there is no continuous processing equipment, resulting in low processing efficiency; at the same time, the smoke generated by the briquettes during the heating process pollutes the environment. How to design a coal-based activated carbon processing technology with high processing efficiency and low pollution to achieve green and environmental protection is the technical problem to be solved by the present invention. Summary of the invention

[0003] The present invention provides a continuous production line for preparing activated carbon from microwave carbonized coal and a control method thereof, which can improve the processing efficiency of the continuous production line for preparing activated carbon from microwave carbonized coal, reduce pollution, and achieve a green and environmentally friendly processing purpose.

[0004] The present invention provides a continuous production line for preparing activated carbon from coal by microwave carbonization, comprising:

[0005] Coal extrusion forming assembly, used for crushing coal blocks and extruding them into coal briquettes of a set shape;

[0006] A microwave heating assembly, used for heating the coal briquettes with microwaves to carbonize the coal briquettes;

[0007] Air treatment components are used to harmlessly treat the gases generated during the microwave heating of coal briquettes and to recover the coal tar in the gases.

[0008] Furthermore, the microwave heating component includes a microwave heating tunnel for microwave heating, in which a first microwave generator for microwave heating coal briquettes is provided; the continuous production line of microwave carbonization coal to produce activated carbon also includes a steam generating component, which is used to heat water to generate steam and use the steam to form protective wind curtains at both ends of the microwave heating tunnel.

[0009] Furthermore, the steam generating assembly includes a water tank, a heating module and two steam boxes, the heating module is used to heat the water in the water tank to generate steam and transport it to the steam boxes, the steam boxes are arranged at the corresponding ends of the microwave heating tunnel, and the microwave heating assembly also includes a conveyor belt, which runs through the microwave heating tunnel and the steam boxes; wherein the heating module is an electric heating tube arranged in the water tank, or the heating module is a second microwave generator arranged outside the water tank.

[0010] Further, the air treatment component includes a first fan, a tar recovery module and a connecting pipe, the tar recovery module includes a tar recovery box, a condenser and an electric tar collector, the condenser includes a shell and a plurality of condensing tubes arranged in the shell, two sealed tube sheets are arranged in the shell, the area of ​​the shell located between the two sealed tube sheets forms a water cavity, the area of ​​the shell located outside one of the sealed tube sheets forms an air inlet cavity, the area of ​​the shell located outside the other sealed tube sheet forms an air outlet cavity, and the shell is also provided with a water inlet pipe and a water outlet pipe connected to the water cavity. The outer shell is also provided with an air inlet pipe connected to the air inlet cavity, and the outer shell is also provided with an air outlet pipe connected to the air outlet cavity. The condenser pipe seal runs through the two sealed tube plates, and the condenser pipe connects the air inlet cavity and the air outlet cavity. The bottom of the outer shell is provided with an oil outlet pipe connected to the air inlet cavity. The air inlet pipe is connected to the first fan, and the first fan is connected to the microwave heating tunnel through the connecting pipe. The air outlet pipe is connected to the air inlet of the electric tar precipitator, and the oil outlet of the electric tar precipitator is connected to the tar recovery tank, and the oil outlet pipe is connected to the tar recovery tank.

[0011] Furthermore, the air outlet of the electric tar collector is also connected to a waste gas incinerator.

[0012] Furthermore, the extruded coal molding assembly includes a mounting bracket, and a crushing mechanism and an extrusion molding mechanism arranged on the mounting bracket, the crushing mechanism is used to extrude and crush the coal blocks and convey them to the extrusion molding mechanism, and the extrusion molding mechanism is used to extrude the crushed coal to form coal briquettes; the crushing mechanism is a toothed roller crusher, and the extrusion molding mechanism includes a silo and two pressure rollers arranged in the discharge port at the bottom of the silo, the two pressure rollers are arranged side by side and close to each other, and a plurality of grooves are arranged on the circumferential surface of the pressure roller; a conveyor belt is arranged between the discharge port of the toothed roller crusher and the silo.

[0013] Furthermore, the extruded coal forming assembly is also provided with a dust suction purification assembly, which includes a dust suction air duct, a second fan and a spray pipe, the second fan is arranged in the dust suction air duct, the air inlet of the dust suction air duct is provided with a dust suction hood, the dust suction hood is located above the gear roller crusher, the air outlet of the dust suction air duct is provided with the spray pipe, and the air outlet of the dust suction air duct is located above the silo.

[0014] Furthermore, the dust suction and purification component also includes a shielding cover, which is slidably arranged on the mounting bracket, and the mounting bracket is also provided with a cylinder for driving the shielding cover to move between above the gear roller crusher and above the silo; the shielding cover is provided with a ventilation hole, and the ventilation hole is used to communicate with the air outlet of the dust suction duct.

[0015] Furthermore, it also includes a cooling component, which is located at the discharge port of the microwave heating tunnel. The cooling component includes an outer sleeve, an inner sleeve and an auger. The inner sleeve is arranged in the outer sleeve. The inner sleeve is arranged between the outer sleeves to form a cooling water cavity. The outer sleeve is also provided with a water inlet and a water outlet connected to the cooling water cavity. The auger is rotatably arranged in the inner sleeve; the conveyor belt is also used to transport the processed activated carbon output from the microwave heating tunnel to the inner sleeve.

[0016] The present invention also provides a control method for a continuous production line of microwave carbonized coal to produce activated carbon, which adopts the above-mentioned continuous production line of microwave carbonized coal to produce activated carbon; the specific method includes: a briquetting process, a humidification preheating process, a microwave heating process and a tar recovery process;

[0017] In the briquetting process, the coal briquette is put into the crushing mechanism for crushing, and the crushed coal is transported to the extrusion molding mechanism for extrusion molding to form coal briquette;

[0018] In the microwave heating process, the coal briquettes are transported to the microwave heating tunnel for microwave heating, and the coal briquettes are carbonized and activated to form activated carbon;

[0019] In the tar recovery process, the tar flue gas generated by heating the coal briquette in the microwave heating tunnel enters the air treatment component, and the condenser is used to condense the tar in the tar flue gas. The condensed flue gas is then treated by an electric tar precipitator.

[0020] The continuous production line for producing activated carbon from microwave carbonized coal and the control method thereof provided by the present invention can absorb the tar smoke generated during the microwave heating of coal briquette and capture the tar by adding an air treatment component, so that the tar content of the smoke discharged into the atmosphere is extremely low or even reaches a tar-free content, so as to effectively reduce the pollution to the environment and achieve the purpose of green and environmentally friendly processing. At the same time, the coal briquette can be crushed and formed online by extruding the coal forming component, and the steam generating component is used for humidification preheating to improve the carbonization and activation efficiency of the coal briquette, thereby improving the processing efficiency as a whole. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a continuous production line for preparing activated carbon from coal by microwave carbonization according to the present invention;

[0022] Figure 2 It is a schematic structural diagram of the coal extrusion molding assembly in the continuous production line for producing activated carbon from coal by microwave carbonization of the present invention;

[0023] Figure 3 It is a partial cross-sectional view of the steam generating assembly in the continuous production line for producing activated carbon from coal by microwave carbonization of the present invention;

[0024] Figure 4 It is a structural schematic diagram of a condenser in a continuous production line for preparing activated carbon from coal by microwave carbonization according to the present invention;

[0025] Figure 5 It is a cross-sectional view of a condenser in the continuous production line of producing activated carbon from coal by microwave carbonization of the present invention;

[0026] Figure 6 It is a schematic diagram of the structure of the pressure roller in the continuous production line of producing activated carbon from coal by microwave carbonization of the present invention;

[0027] Figure 7 It is a schematic diagram of the structure of the cooling assembly in the continuous production line of producing activated carbon from microwave carbonized coal of the present invention. DETAILED DESCRIPTION

[0028] The present invention is described in detail below with reference to the accompanying drawings.

[0029] like Figure 1-Figure 7 As shown, the continuous production line for producing activated carbon from microwave carbonized coal in this embodiment includes an extruded coal forming component 1, a microwave heating component 3 and an air treatment component 4; wherein the extruded coal forming component 1 is used for crushing and extruding coal blocks to form coal briquettes of a set shape; the microwave heating component 3 is used for microwave heating of the coal briquettes to carbonize the coal briquettes; the air treatment component 4 is used for harmlessly treating the gas generated during the microwave heating of the coal briquettes and recovering the coal tar in the gas.

[0030] Specifically, the continuous production line for producing activated carbon from microwave carbonized coal in this embodiment realizes online crushing of coal blocks and extrusion to form coal briquettes through the coal extrusion forming component 1. The coal briquettes enter the microwave heating component 3 and are heated quickly and efficiently by microwaves, so that the coal briquettes can be quickly heated and carbonized. The gas generated in the process of microwave heating of the coal briquettes contains a large amount of coal tar and other components. The air treatment component 4 can recover the coal tar contained in the gas, thereby achieving air purification to reduce pollution to the environment. Specifically, the extruded coal molding assembly 1 includes a mounting bracket 11, and a crushing mechanism 12 and an extrusion molding mechanism 13 arranged on the mounting bracket 11, the crushing mechanism 12 is used to extrude and crush the coal block and convey it to the extrusion molding mechanism 13, and the extrusion molding mechanism 13 is used to extrude the crushed coal to form coal briquettes; the microwave heating assembly 3 includes a microwave heating tunnel 31 and a conveyor belt 32, and the microwave heating tunnel 31 is provided with a first microwave generator (not shown) for microwave heating the coal briquettes; the air treatment assembly 4 includes a first fan (not shown), a tar recovery module 41 and a connecting pipe 42, the tar recovery module 41 includes a tar recovery box, a condenser 411 and an electric tar collector 412, the condenser 411 includes an outer shell (not marked) and a plurality of condensing tubes 400 arranged in the outer shell, two sealed tube sheets (not marked) are arranged in the outer shell, and the area between the two sealed tube sheets in the outer shell forms a water cavity, and the outer shell is located in one of the The area outside the sealed tube sheet forms an air inlet cavity, and the area outside the other sealed tube sheet of the shell forms an air outlet cavity. The shell is also provided with a water inlet pipe and a water outlet pipe connected to the water cavity, and the shell is also provided with an air inlet pipe 401 connected to the air inlet cavity, and the shell is also provided with an air outlet pipe 402 connected to the air outlet cavity. The condenser tube seals and passes through the two sealed tube sheets, wherein the sealed tube sheets are provided with a plurality of jacks, and the condenser tube 400 is sealed and inserted in the corresponding In the socket, the condenser 400 connects the air inlet cavity and the air outlet cavity, and an oil outlet pipe 403 connected to the air inlet cavity is provided at the bottom of the shell, the air inlet pipe 401 is connected to the first fan, and the first fan is connected to the microwave heating tunnel 31 through the connecting pipe 42, the air outlet pipe 402 is connected to the air inlet of the electric tar precipitator 412, the oil outlet of the electric tar precipitator 412 is connected to the tar recovery tank, and the oil outlet pipe 403 is connected to the tar recovery tank.The tar flue gas generated by the heating of the coal briquette will enter the air treatment component 4, and the tar flue gas will enter the condenser 411 under the action of the first fan. Cooling water flows outside the condenser tube 400 in the condenser 411, so as to condense the tar flue gas flowing through the condenser tube 400, so that the tar condenses on the tube wall of the condenser tube 400 and slides to the bottom of the outer shell of the condenser 411 by gravity, and finally the tar flows into the tar recovery box through the oil outlet pipe 403. If there is still a small amount of tar in the gas output from the condenser 411, the electric tar precipitator 412 is used to further remove the tar, so as to purify the exhaust gas and reduce the pollution to the environment. The tar captured in the electric tar precipitator 412 is collected and flows into the tar recovery box. Preferably, the air outlet of the electric tar precipitator 412 is also connected to a waste gas incinerator (not shown). The gas treated by the electric tar precipitator 412 still contains combustible and harmful gases such as carbon monoxide. The gas output from the electric tar precipitator 412 is then incinerated in the waste gas incinerator to make the gas harmlessly discharged.

[0031] Furthermore, in order to ensure that the gas generated during the microwave heating process will not burn due to contact with oxygen, the continuous production line for producing activated carbon from microwave carbonized coal in this embodiment also includes a steam generating assembly 2, which is used to heat water to generate steam and use the steam to form a protective wind curtain at both ends of the microwave heating tunnel 31. Specifically, the steam generating assembly 2 heats water to generate a large amount of steam to form a protective wind curtain at both ends of the microwave heating tunnel 31 to prevent outside air from entering the microwave heating tunnel 31. At the same time, the steam generated by the steam generating assembly 2 enters the microwave heating tunnel 31 to replenish the gas. The steam generating assembly 2 comprises a water tank 21, a heating module 22 and two steam boxes 23. The heating module 22 is used to heat the water in the water tank 21 to generate steam and transport it to the corresponding steam boxes 23 through corresponding pipelines. The steam boxes 23 are arranged at the corresponding ends of the microwave heating tunnel 31 to form an air curtain at the port of the microwave heating tunnel 31 through the steam boxes 23. The conveyor belt 32 runs through the microwave heating tunnel 31 and the steam boxes 23. The conveyor belt 31 is used to transport the coal briquettes output by the extruded coal forming assembly 1 through the steam boxes 23, the microwave heating tunnel 31 and another steam box 23 in sequence. The water in the water tank 21 in the steam generating assembly 2 is heated by the heating module 22 to form hot steam and enter the steam boxes 23. The heating module 22 can be an electric heating tube arranged in the water tank 21; or, the heating module is a second microwave generator arranged outside the water tank 21. Among them, the steam in the steam box 23 at the inlet end of the microwave heating tunnel 31 encounters the coal briquettes at room temperature. On the one hand, the steam can preheat the coal briquettes, and on the other hand, the steam can humidify the coal briquettes when it is cooled. In this way, when the coal briquettes enter the microwave heating tunnel 31 for microwave heating, the moisture in the coal briquettes can further improve the heating efficiency of the coal briquettes to achieve carbonization and activation of the coal briquettes; and when the coal briquettes are output from the steam box 23 located at the outlet end of the microwave heating tunnel 31 after being carbonized to form activated carbon, due to the high temperature of the activated carbon, the steam accelerates evaporation after encountering the activated carbon.

[0032] Among them, the crushing mechanism 12 in the extruded coal molding assembly 1 can be a toothed roller crusher, which is used to extrude and crush the coal blocks to form coal powder, and the extrusion molding mechanism 13 includes a silo (not marked) and two pressure rollers 131 arranged in the discharge port at the bottom of the silo, the two pressure rollers 131 are arranged side by side and close together, and a plurality of grooves 132 are arranged on the circumferential surface of the pressure roller 131; a conveyor belt (not shown) is arranged between the discharge port of the toothed roller crusher and the silo, and the crushing mechanism 12 crushes the coal blocks to form coal powder and then transports it to the silo of the extrusion molding mechanism 13 through the conveyor belt, and uses the two pressure rollers 131 to perform rolling processing, so that coal briquettes are extruded in the grooves 132 of the pressure rollers 131. Preferably, in order to reduce the environmental pollution caused by coal dust during the coal briquetting process, the extruded coal forming component 1 is also provided with a dust suction purification component 14, and the dust suction purification component 14 includes a dust suction duct 141, a second fan (unmarked) and a spray pipe 142, the second fan is arranged in the dust suction duct 141, the air inlet of the dust suction duct 141 is provided with a dust suction hood 143, the dust suction hood 143 is located above the gear roller crusher 12, the air outlet of the dust suction duct 141 is provided with the spray pipe 142, and the air outlet of the dust suction duct 141 is located above the silo. Specifically, the dust generated in the process of crushing the coal blocks is sucked into the dust suction duct 141, and sprayed in cooperation with the spray pipe 142 to realize dust-free operation. Preferably, the dust suction purification component 14 also includes a shielding cover 144, which is slidably arranged on the mounting bracket 11, and the mounting bracket 11 is also provided with a cylinder 145 for driving the shielding cover 144 to move between the top of the gear roll crusher and the top of the silo; the shielding cover 144 is provided with a vent, and the vent is used to communicate with the air outlet of the dust suction duct 141. Specifically, in the process of crushing the coal block by the gear roll crusher, the shielding cover 144 moves to the top of the gear roll crusher to cover the inlet of the roller crusher, and the shielding cover 144 is used to block the coal from entering the silo. Dust overflows. At this time, the second fan runs at a low gear to use the dust suction duct 141 for dust suction processing, so as to further reduce the leakage of coal dust. In actual use, the maximum air volume of the second fan is determined on the premise of avoiding impact on the crushed coal in the silo. When coal blocks need to be replenished, the shielding hood 144 is moved to the top of the silo. At this time, the air outlet of the dust duct 141 is connected to the ventilation hole, and the second fan runs at a high gear to carry out dust suction processing more effectively. At the same time, the spraying volume of the spray pipe 142 is also increased to effectively suppress the silo from being affected by the airflow blown out by the dust suction duct 141 and generating excessive dust.

[0033] Furthermore, in order to quickly cool down the processed activated carbon output from the microwave heating tunnel 31, the continuous production line of activated carbon made from microwave carbonized coal in this embodiment further includes a cooling assembly 5, the cooling assembly 5 is located at the discharge port of the microwave heating tunnel 31, the cooling assembly 5 includes an outer sleeve 51, an inner sleeve 52 and an auger 53, the inner sleeve 52 is arranged in the outer sleeve 51, the inner sleeve 52 is arranged between the outer sleeves 51 to form a cooling water chamber 50, and the outer sleeve 51 is also provided with a water inlet 521 and a water outlet 522 connected to the cooling water chamber 50 The auger 53 is rotatably arranged in the inner sleeve 52; the conveyor belt 32 is also used to convey the processed activated carbon output from the microwave heating tunnel 31 to the inner sleeve 52. Specifically, the coal briquette is finally formed into activated carbon after microwave heating in the microwave heating tunnel 31. After the activated carbon is output from the microwave heating tunnel 31 following the conveyor belt 32, the temperature of the activated carbon is relatively high. The high-temperature activated carbon is conveyed to the inner sleeve 52 and conveyed by the auger 53. In the process of conveying the activated carbon, the auger 53 uses the cold water flowing in the cooling water chamber 50 to cool it down.

[0034] The present invention also provides a control method for a continuous production line of microwave carbonized coal to produce activated carbon, which adopts the above-mentioned continuous production line of microwave carbonized coal to produce activated carbon; the specific method includes: a briquetting process, a humidification preheating process, a microwave heating process and a tar recovery process;

[0035] In the briquetting process, the coal blocks are put into the crushing mechanism for crushing, and the crushed coal is transported to the extrusion molding mechanism for extrusion molding to form coal briquettes. The briquetting process is specifically as follows: when the coal blocks are put into the crushing mechanism for crushing, the shielding hood moves to the top of the gear roller crusher for shielding, and at the same time, the spray pipe sprays the silo; when the crusher adds coal blocks, the shielding hood moves to the top of the silo for shielding, and the vent of the shielding hood is connected to the outlet of the dust suction duct, the second fan is started for dust suction, and the coal dust sucked into the dust suction duct is transported to the silo, and at this time, the spray pipe continues to spray the silo.

[0036] In the microwave heating process, the coal briquettes are transported to the microwave heating tunnel for microwave heating, and the coal briquettes are carbonized and activated to form activated carbon;

[0037] In the tar recovery process, the tar flue gas generated by heating the coal briquette in the microwave heating tunnel enters the air treatment component, and the condenser is used to condense the tar in the tar flue gas. The condensed flue gas is then treated by an electric tar precipitator.

[0038] Furthermore, in addition, a humidification and preheating process may be included; in the humidification and preheating process, the coal briquettes are transported to the steam box for humidification treatment, and at the same time, the hot steam preheats the coal briquettes.

[0039] The continuous production line for producing activated carbon from microwave carbonized coal provided by the present invention and its control method, by adding an air treatment component, the air treatment component can absorb the tar smoke generated during the microwave heating of coal briquette and first perform tar condensation treatment, and then further capture the tar of the smoke through the electric tar collector, so that the tar content of the smoke discharged into the atmosphere is extremely low or even reaches a tar-free content, so as to effectively reduce the pollution to the environment and achieve the purpose of green and environmentally friendly processing. At the same time, the crushing and shaping of coal briquette is realized online through the extrusion coal forming component, and the humidification preheating is carried out in conjunction with the steam generation component to improve the carbonization and activation efficiency of the coal briquette, thereby improving the processing efficiency as a whole.

Claims

1. A continuous production line for producing activated carbon from coal by microwave carbonization, characterized in that: include: Coal extrusion forming assembly, used for crushing coal blocks and extruding them into coal briquettes of a set shape; A microwave heating assembly, used for heating the coal briquettes with microwaves to carbonize the coal briquettes; Air treatment components for harmlessly treating the gas generated during the microwave heating of coal briquettes and recovering the coal tar in the gas; The microwave heating assembly includes a microwave heating tunnel for microwave heating, in which a first microwave generator for microwave heating coal briquettes is arranged; the continuous production line of microwave carbonized coal to activated carbon also includes a steam generating assembly, which is used to heat water to generate steam and use the steam to form protective air curtains at both ends of the microwave heating tunnel; In addition, the extruded coal molding assembly includes a mounting bracket, and a crushing mechanism and an extrusion molding mechanism arranged on the mounting bracket, the crushing mechanism is used to extrude and crush the coal blocks and convey them to the extrusion molding mechanism, and the extrusion molding mechanism is used to extrude the crushed coal to form coal briquettes; the crushing mechanism is a toothed roller crusher, and the extrusion molding mechanism includes a silo and two pressure rollers arranged in a discharge port at the bottom of the silo, the two pressure rollers are arranged side by side and close together, and a plurality of grooves are arranged on the circumferential surface of the pressure roller; a conveyor belt is arranged between the discharge port of the toothed roller crusher and the silo; The steam generating assembly comprises a water tank, a heating module and two steam boxes, wherein the heating module is used to heat the water in the water tank to generate steam and transport the steam to the steam boxes, the steam boxes are arranged at the corresponding ends of the microwave heating tunnel, and the microwave heating assembly also comprises a conveyor belt, which runs through the microwave heating tunnel and the steam boxes; wherein the heating module is an electric heating tube arranged in the water tank, or the heating module is a second microwave generator arranged outside the water tank.

2. The continuous production line for producing activated carbon from microwave carbonized coal according to claim 1 is characterized in that: The air treatment component includes a first fan, a tar recovery module and a connecting pipe. The tar recovery module includes a tar recovery box, a condenser and an electric tar collector. The condenser includes a shell and a plurality of condensing tubes arranged in the shell. Two sealed tube sheets are arranged in the shell. The area between the two sealed tube sheets in the shell forms a water cavity. The area of ​​the shell located outside one of the sealed tube sheets forms an air inlet cavity. The area of ​​the shell located outside the other sealed tube sheet forms an air outlet cavity. The shell is also provided with a water inlet pipe and a water outlet pipe connected to the water cavity. The outer shell is also provided with an air inlet pipe connected to the air inlet cavity, and the outer shell is also provided with an air outlet pipe connected to the air outlet cavity. The condenser pipe seal passes through the two sealed tube plates, and the condenser pipe connects the air inlet cavity and the air outlet cavity. The bottom of the outer shell is provided with an oil outlet pipe connected to the air inlet cavity. The air inlet pipe is connected to the first fan, and the first fan is connected to the microwave heating tunnel through the connecting pipe. The air outlet pipe is connected to the wind inlet of the electric tar precipitator, and the oil outlet of the electric tar precipitator is connected to the tar recovery tank, and the oil outlet pipe is connected to the tar recovery tank.

3. The continuous production line for producing activated carbon from microwave carbonized coal according to claim 2 is characterized in that: The air outlet of the electric tar collector is also connected to a waste gas incinerator.

4. The continuous production line for producing activated carbon from microwave carbonized coal according to claim 1 is characterized in that: The extruded coal forming assembly is also provided with a dust suction and purification assembly, which includes a dust suction air duct, a second fan and a spray pipe, the second fan is arranged in the dust suction air duct, the air inlet of the dust suction air duct is provided with a dust suction hood, the dust suction hood is located above the gear roller crusher, the air outlet of the dust suction air duct is provided with the spray pipe, and the air outlet of the dust suction air duct is located above the silo.

5. The continuous production line for producing activated carbon from microwave carbonized coal according to claim 4 is characterized in that: The dust suction and purification component also includes a shielding cover, which is slidably arranged on the mounting bracket, and the mounting bracket is also provided with a cylinder for driving the shielding cover to move between above the gear roller crusher and above the silo; the shielding cover is provided with a ventilation hole, and the ventilation hole is used to communicate with the air outlet of the dust suction duct.

6. The continuous production line for producing activated carbon from microwave carbonized coal according to any one of claims 1 to 5, characterized in that: It also includes a cooling component, which is located at the discharge port of the microwave heating tunnel. The cooling component includes an outer sleeve, an inner sleeve and an auger. The inner sleeve is arranged in the outer sleeve. The inner sleeve is arranged between the outer sleeves to form a cooling water cavity. The outer sleeve is also provided with a water inlet and a water outlet connected to the cooling water cavity. The auger is rotatably arranged in the inner sleeve. The conveyor belt is also used to transport the processed activated carbon output from the microwave heating tunnel to the inner sleeve.

7. A control method for a continuous production line of microwave carbonized coal to activated carbon, characterized in that: A continuous production line for producing activated carbon from microwave carbonized coal as described in any one of claims 1 to 6; the specific method comprises: a briquetting process, a microwave heating process and a tar recovery process; In the briquetting process, the coal briquette is put into the crushing mechanism for crushing, and the crushed coal is transported to the extrusion molding mechanism for extrusion molding to form coal briquette; In the microwave heating process, the coal briquettes are transported to the microwave heating tunnel for microwave heating, and the coal briquettes are carbonized and activated to form activated carbon; In the tar recovery process, the tar flue gas generated by heating the coal briquette in the microwave heating tunnel enters the air treatment component, and the condenser is used to condense the tar in the tar flue gas. The condensed flue gas is then treated by an electric tar precipitator.

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