Cremator smoke treatment device and method

Abstract

The present invention discloses a cremator flue gas treatment device and method, comprising an integrated device body, the device body being provided with an air inlet and an air outlet, the device body being provided with a bag dust removal zone, a pulse plasma reaction zone, an auxiliary absorption zone, and an electrical zone, the air inlet, the bag dust removal zone, the pulse plasma reaction zone, the auxiliary absorption zone, and the air outlet being arranged in sequence along the gas flow direction, the bag dust removal zone being provided with a bag and a spray assembly, the spray assembly being located on the side of the bag away from the air inlet, the electrical zone being provided with a controller and a power supply assembly, the pulse plasma reaction zone being provided with a pulse discharge assembly, the auxiliary absorption zone being provided with absorbent filler, the controller being electrically connected to the power supply assembly, and the power supply assembly being electrically connected to the pulse discharge assembly via a power lead-in line. The cremator flue gas treatment device of the present invention utilizes high-voltage pulse discharge from a discharge electrode to form a pulse plasma reaction zone to perform harmless treatment of flue gas, is easy to maintain, has high economic applicability and practicality, and saves energy.

Description

Technical Field

[0001] The present invention relates to the technical field of cremation flue gas treatment, and in particular to a crematorium flue gas treatment device and method. Background Art

[0002] Dioxins, typically composed of polychlorinated dibenzo-p-dioxins, polychlorinated dibenzofurans, and coplanar polychlorinated biphenyls (PCBs), are stable and difficult to degrade in the natural environment. Consequently, they were listed as one of the first twelve controlled pollutants under the Stockholm Convention. Dioxins are often unintentionally generated as industrial byproducts, such as from the incineration of waste products, organometallic smelting, or chemical production. These substances affect a wide range of industries, and their control remains a long and arduous task.

[0003] Current research shows that the temperature for dioxin formation is mainly between 250-850℃. Generally, the most suitable conditions for dioxin formation are those that are not fully burned. Some dioxins are also produced in flue gases that are slowly cooled after full combustion. The main methods for controlling dioxin formation during incineration are as follows:

[0004] (1) The temperature of the flue gas in the secondary combustion chamber is above 850°C, the residence time is greater than 2 seconds, and the fuel and oxygen are fully mixed to ensure combustion and fully reduce the generation of dioxins.

[0005] (2) The flue gas is cooled from 850°C to 200°C in the quenching tower, crossing the dioxin generation temperature range.

[0006] However, due to production conditions and economic reasons, most crematorium furnaces cannot achieve optimal operating conditions and temperatures. The extreme cooling rate of the flue gas generated by cremation cannot promptly reduce the flue gas temperature from 850°C to below 200°C. As a result, the domestic cremation industry is still facing the problem of exceeding the standard for dioxin in production exhaust gas. The current method for controlling dioxin in production exhaust gas mainly involves improving the filtration accuracy of bag filters to increase the effective retention of particulate matter. Dioxins adhere to particulate matter, thereby blocking and removing them. However, this process has limited dioxin removal efficiency, with some methods only achieving a removal rate of around 25%. Some processes use activated carbon adsorption to remove dioxins, with removal efficiencies reaching 85%. However, this method significantly increases maintenance workload, and the contaminated activated carbon remains as solid waste, requiring incineration. The accumulated activated carbon consumption and subsequent disposal costs are high, making it uneconomical. Summary of the Invention

[0007] In order to solve the above problems, the technical solution provided by the present invention is:

[0008] A fume treatment device for a crematorium comprises an integrated device body, the device body being provided with an air inlet and an air outlet, the device body being provided with a bag dust removal area, a pulse plasma reaction area, an auxiliary absorption area and an electrical area, the air inlet, the bag dust removal area, the pulse plasma reaction area, the auxiliary absorption area and the air outlet being arranged in sequence along the gas flow direction, the bag dust removal area being provided with a bag and a blowing assembly, the blowing assembly being located on the side of the bag away from the air inlet, the electrical area being provided with a controller and a power supply assembly, the pulse plasma reaction area being provided with a pulse discharge assembly, the auxiliary absorption area being provided with an absorption filler, the controller being electrically connected to the power supply assembly, and the power supply assembly being electrically connected to the pulse discharge assembly via a power lead-in line.

[0009] The present invention is further configured such that a front pressure gauge is provided on the side of the cloth bag close to the air inlet, a rear pressure gauge and a front flue gas detection gauge are provided on the side of the cloth bag close to the pulse plasma reaction zone, and a rear flue gas detection gauge and an oxidation equivalent detection gauge are provided on the side of the auxiliary absorption zone close to the air outlet. The front pressure gauge, the rear pressure gauge, the front flue gas detection gauge, the rear flue gas detection gauge and the oxidation equivalent detection gauge are electrically connected to the controller respectively.

[0010] The present invention is further configured such that the controller is electrically connected to an external air supply fan and a spray compressor through a frequency converter, the air supply fan is used to supply flue gas, the spray compressor is connected to the spray assembly through a pulse spray solenoid valve, and the pulse spray solenoid valve is electrically connected to the controller.

[0011] The present invention is further configured to include a power control module and an open circuit detection module, the controller is electrically connected to the power control module, the power control module is electrically connected to the power supply component, the controller adjusts the output power of the power supply component and obtains the current output power through the power control module, the controller is electrically connected to the open circuit detection module, and the open circuit detection module is electrically connected to the power supply component.

[0012] The present invention is further configured such that a temperature meter is provided at the air inlet, and the temperature meter is electrically connected to the controller.

[0013] The present invention is further configured to include a communication module and a control panel, and the communication module and the control panel are electrically connected to the controller respectively.

[0014] The present invention is further configured such that the pulse discharge component includes a grounding frame and a discharge electrode, the grounding frame includes a fixed plate, a fixed bracket and a grounding electrode tube, the grounding electrode tube array is arranged between the fixed plates, the fixed bracket is connected to the fixed plate and is located at both ends of the grounding electrode tube, the grounding electrode tube is a hollow tube body, the discharge electrode wire is arranged in the grounding electrode tube, the two ends of the discharge electrode wire are respectively connected to the fixed bracket, and the discharge electrode wire is connected to the output end of the power module through the power supply lead-in wire.

[0015] The present invention is further configured such that the discharge electrode includes an electrode body, a discharge sheet sleeved on the electrode body, a cylindrical barrel arranged between the discharge sheets, and conical barrels arranged at both ends of the electrode body, the outer periphery of the discharge sheet is evenly provided with raised discharge portions, the upper and lower end surface peripheries of the cylindrical barrel and the end surface periphery of the conical barrel close to the discharge sheet are provided with positioning grooves and positioning blocks, the positioning grooves and positioning blocks on the upper end surface of the cylindrical barrel are staggered with the positioning grooves and positioning blocks on the lower end surface of the same cylindrical barrel, the discharge portion is limited to the positioning grooves and positioning blocks adjacent to the discharge portion, and the discharge portion protrudes from the surface of the cylindrical barrel and the surface of the conical barrel, and the discharge portions of adjacent discharge sheets are staggered along the axial direction of the electrode body.

[0016] The present invention is further configured such that a bag discharge hopper is provided below the bag dust removal area.

[0017] A method for treating smoke from a cremator, using the above-mentioned smoke treatment equipment for a cremator, comprising:

[0018] When the device is started, the controller uses the open circuit detection module to detect whether the device is grounded. If the device is not grounded, the controller disconnects the power module circuit. If the device is grounded, the controller connects the power module circuit and operates normally.

[0019] The controller controls the air supply fan through the frequency converter, and at the same time, the power supply component and the pulse discharge component are operated through the power control module; the gas enters the bag dust removal area and passes through the bag to filter the solid particulate matter in the flue gas; the filtered gas enters the pulse plasma reaction area, and the discharge electrode generates a high-energy electric field and high-energy electrons under the high-voltage pulse output of the power module, which breaks the bonds of harmful gases in the gas and decomposes them into harmless substances. At the same time, corona discharge produces oxidizing substances, and the highly oxidizing substances undergo redox reactions with harmful gases; the residual and unreacted harmful gases enter the auxiliary absorption area and are absorbed by the absorption filler. The excess oxidizing substances generated in the pulse plasma reaction area will continue to react with the harmful gases in the absorption filler; finally, the purified air is discharged;

[0020] During the operation of the equipment, the controller adjusts the output power of the power supply component in real time based on the gas information fed back by the front flue gas detection meter, the rear flue gas detection meter and the oxidation equivalent detection meter, thereby adjusting the reaction energy of the pulsed plasma reaction zone;

[0021] During the operation of the equipment, the controller controls the operation of the pulse spray solenoid valve according to the pressure information fed back by the front pressure gauge and the rear pressure gauge, so that the spray assembly cleans the bag;

[0022] During the operation of the equipment, the controller controls the operation of the air supply fan and power components based on the temperature information fed back by the temperature meter.

[0023] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0024] The smoke treatment equipment of the crematorium in this technical solution is provided with a bag dust removal area, a pulse plasma reaction area, and an auxiliary absorption area. When the smoke is treated, it passes through the above three areas in sequence. The smoke that has been cooled in the front section enters the bag dust removal area through a pipeline from the bottom of the equipment to intercept solid particulate matter. The intercepted particulate matter is sprayed into the lower hopper through the spray assembly for unified recovery; the treated smoke passes through the top of the equipment into the pulse plasma reaction area, and the pulse energy is generated by the pulse power supply assembly and decomposes the smoke components in the pulse plasma reaction area through the pole line. When the smoke passes through the pulse plasma area, the components in the gas are decomposed into harmless substances by the high-energy electric field and electron bond breaking. The auxiliary absorption area absorbs the unreacted components in the smoke and reacts with the oxidized components in the pulse plasma reaction area again in the absorption area. The filler in the auxiliary absorption area can extend its service life by the excess oxidation products in the plasma area, and then is discharged through the outlet.

[0025] The present invention's incinerator flue gas treatment equipment uses high-voltage pulse discharge from discharge electrodes to form a pulsed plasma reaction zone for harmless flue gas treatment. This pulsed plasma reaction zone is highly adaptable to high-dust and high-humidity operating conditions. The entire process requires only maintenance for the bag filter; no wastewater or exhaust is discharged. Maintenance requires only bag cleaning, making it easy to maintain and highly economical and practical. Furthermore, the control system for the present invention's incinerator flue gas treatment equipment can adjust power in real time based on flue gas composition, automatically controlling the input power to the reaction zone, saving energy while better managing flue gas emissions. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a structural diagram of a smoke treatment device for a crematorium according to an embodiment of the present invention.

[0027] Figure 2 This is a three-dimensional diagram of a pulse discharge component according to an embodiment of the present invention.

[0028] Figure 3This is a three-dimensional diagram of the discharge electrode according to an embodiment of the present invention.

[0029] Figure 4 This is a partial exploded view of the discharge electrode according to an embodiment of the present invention.

[0030] Figure 5 This is a schematic diagram of the discharge of the discharge electrode wire in the grounded electrode tube according to an embodiment of the present invention.

[0031] Figure 6 Schematic diagram of discharge cross section of discharge electrode wire according to an embodiment of the present invention.

[0032] Figure 7 This is the electrical control diagram of the smoke treatment equipment of the crematorium according to the embodiment of the present invention. DETAILED DESCRIPTION

[0033] In order to further understand the content of the present invention, the present invention is described in detail with reference to the accompanying drawings and embodiments.

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be a mechanical connection or an electrical connection, or it can be the internal communication between two components; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0036] Example 1

[0037] Combined with attachment Figure 1 To the attached Figure 7 The technical solution of the present invention is a crematorium flue gas treatment device, comprising an integrated device body 1, the device body 1 is provided with an air inlet 11 and an air outlet 12, the device body 1 is provided with a bag dust removal area 13, a pulse plasma reaction area 14, an auxiliary absorption area 15 and an electrical area 16, the air inlet 11, the bag dust removal area 13, the pulse plasma reaction area 14, the auxiliary absorption area 15 and the air outlet 12 are arranged in sequence along the gas flow direction, the bag dust removal area 13 is provided with a bag 2 and a blowing component 3, the blowing component 3 is located on the side of the bag 2 away from the air inlet 11, the electrical area 16 is provided with a controller 4 and a power supply component 5, the pulse plasma reaction area 14 is provided with a pulse discharge component 6, the auxiliary absorption area 15 is provided with an absorption filler 7, the controller 4 is electrically connected to the power supply component 5, and the power supply component 5 is electrically connected to the pulse discharge component 6 through a power lead-in line 51.

[0038] In the above embodiment, the electrical area 16 is an independent chamber located at the top of the equipment. When the equipment processes the airflow, it will not affect the controller 4 and the power supply component 5 of the electrical area 16. The controller 4 is a PLC (programmable logic controller) and the power supply component 5 outputs a high-voltage pulse voltage.

[0039] In the above embodiment, the cloth bag 2 serves as a physical filtering component, which mainly plays the role of filtering solid particulate matter such as fly ash and smoke in the flue gas; long-term operation of the equipment will cause the accumulation of particles on the cloth bag 2 to affect the flow of flue gas, so the blowing component 3 is provided, and the blowing component 3 is arranged directly above the cloth bag 2. When the blowing component 3 is working, it performs pulse spraying to the cloth bag 2 to blow the particles on the cloth bag 2 to the bottom.

[0040] In the above embodiment, the absorption filler 7 can adsorb harmful gases and is used to absorb harmful gases that have not reacted in the pulse plasma reaction zone 14. The absorption filler 7 is loaded in a drawer for easy replacement.

[0041] In this embodiment, a front pressure gauge 111 is provided on the side of the cloth bag 2 close to the air inlet 11, a rear pressure gauge 131 and a front flue gas detection gauge 132 are provided on the side of the cloth bag 2 close to the pulse plasma reaction zone 14, and a rear flue gas detection gauge 151 and an oxidation equivalent detection gauge 152 are provided on the side of the auxiliary absorption zone 15 close to the air outlet 12. The front pressure gauge 111, the rear pressure gauge 131, the front flue gas detection gauge 132, the rear flue gas detection gauge 151 and the oxidation equivalent detection gauge 152 are electrically connected to the controller 4 respectively.

[0042] In the above embodiment, the gas pressures before and after the bag 2 can be obtained through the front pressure gauge 111 and the rear pressure gauge 131 to determine which area is clogged and to perform blowing on the bag 2.

[0043] In the above embodiment, the change in the flue gas concentration in the gas before and after passing through the pulsed plasma reaction zone 14 and the auxiliary absorption zone 15 can be obtained through the front flue gas detection meter 132 and the rear flue gas detection meter 151. If the change is small, the control component increases the output power of the power supply component to increase the reaction energy of the pulsed plasma reaction zone; the concentration of the oxidizing substance generated in the pulsed plasma reaction zone can be obtained through the oxidation equivalent detection meter 152. If the concentration of the oxidizing substance is trace, it means that the harmful substances in the flue gas have been fully reacted. If the concentration of the oxidizing substance exceeds a certain threshold, it means that the reaction energy of the pulsed plasma reaction zone is too large. The control component reduces the output power of the power supply component to reduce the reaction energy of the pulsed plasma reaction zone.

[0044] In this embodiment, the controller 4 is electrically connected to an external air supply fan 8 and a spray compressor 9 through a frequency converter 10. The air supply fan 8 is used to supply flue gas. The spray compressor 9 is connected to the spray component 3 through a pulse spray solenoid valve 91, and the pulse spray solenoid valve 91 is electrically connected to the controller 4.

[0045] In the above embodiment, the controller 4 realizes the blowing action of the blowing component by controlling the operation of the pulse blowing solenoid valve 91 .

[0046] In this embodiment, it also includes a power control module 52 and an open circuit detection module 53. The controller 4 is electrically connected to the power control module 52, and the power control module 52 is electrically connected to the power supply component 53. The controller 4 adjusts the output power of the power supply component 5 and obtains its current output power through the power control module 52. The controller 4 is electrically connected to the open circuit detection module 53, and the open circuit detection module 53 is electrically connected to the power supply component 5.

[0047] In the above embodiment, the power control module 52 acts as a driving circuit to adjust the output power of the power supply component 5; the open circuit detection module 53 detects whether the power supply component 5 is grounded to prevent the high voltage in the pulse plasma reaction zone from causing electric shock injuries to outsiders.

[0048] In this embodiment, the air inlet 11 is provided with a thermometer 112, and the thermometer 112 is electrically connected to the controller 4; the thermometer 112 collects the temperature of the gas entering the device. If the gas temperature exceeds a preset threshold, the device will shut down and an alarm will be sounded to prevent the high-temperature flue gas from directly burning the cloth bag 2.

[0049] In this embodiment, it also includes a communication module 41 and a control panel 42, and the communication module 41 and the control panel 42 are electrically connected to the controller 4 respectively; the communication module 41 sends the current real-time information of the equipment's operation information machine to the cloud background to realize network monitoring; the control panel 42 is used for human-computer interaction of the equipment.

[0050] In this embodiment, the pulse discharge component 6 includes a grounding frame 61 and a discharge electrode 62. The grounding frame 61 includes a fixed plate 611, a fixed bracket 612 and a grounding electrode tube 613. The grounding electrode tube 613 is arranged in an array between the fixed plates 611. The fixed bracket 612 is connected to the fixed plate 611 and is located at both ends of the grounding electrode tube 613. The grounding electrode tube 613 is a hollow tube body. The discharge electrode 62 is arranged in the grounding electrode tube 613. The two ends of the discharge electrode 62 are respectively connected to the fixed bracket 612. The discharge electrode 62 is connected to the output end of the power module 5 through the power supply lead-in line 51.

[0051] In the above embodiment, the modular pulse discharge assembly 6 is easy to assemble on the equipment.

[0052] In this embodiment, the discharge electrode 62 includes an electrode body 621, a discharge sheet 622 sleeved on the electrode body 621, a cylindrical clamping barrel 623 arranged between the discharge sheets 622, and a conical clamping barrel 624 arranged at both ends of the electrode body 621. The outer periphery of the discharge sheet 622 is uniformly provided with a raised discharge portion 6221, and the upper and lower end surfaces of the cylindrical clamping barrel 623 are provided with positioning grooves 6231 and positioning blocks 6232. The end surface of the conical clamping barrel 624 close to the discharge sheet 622 is provided with a positioning groove 6241 and a positioning block 6241. 42. The positioning groove 6231 and the positioning block 6232 on the upper end surface of the cylindrical barrel 623 are staggered with the positioning groove 6231 and the positioning block 6232 on the lower end surface of the same cylindrical barrel 623. The discharge portion 6221 is limited to between the positioning groove and the positioning block adjacent to the discharge portion 6221, and the discharge portion 6221 protrudes from the surface of the cylindrical barrel 623 and the surface of the conical barrel 624. The discharge portions 6221 of adjacent discharge sheets 622 are staggered along the axial direction of the pole wire body 621.

[0053] In the above embodiment, the discharge electrode wire 62 is completely positioned by the cylindrical clamp barrel 623 and the conical clamp barrel 624. The electrode wire is in a flow shuttle shape as a whole, and only the discharge portion 6221 protrudes from the surface. The assembly, maintenance and replacement of the discharge electrode wire 62 are extremely convenient, which effectively reduces the cost. The discharge sheet 622 is not easy to deform. The clamp barrel is arranged on the surface of the electrode wire body 621 to form a frame structure of the electrode wire, which improves the overall rigidity and bending resistance of the discharge electrode wire 62. Figure 5 and attached Figure 6 As shown, when the airflow passes through the discharge electrode 62, the resistance is small and the airflow is transported smoothly. The area through which the airflow flows is almost all the pulse plasma area, so as to improve the treatment efficiency and treatment effect of gases such as dioxins.

[0054] In this embodiment, a bag discharge hopper 17 is provided below the bag dust removal area 13 , and the bag discharge hopper 17 is used to collect the filtered particles and the particles blown off the bags.

[0055] The technical solution of the present invention is that the flue gas treatment equipment of the crematorium is provided with a bag dust removal area, a pulse plasma reaction area, and an auxiliary absorption area. When the flue gas is treated, it passes through the above three areas in sequence. The flue gas after the cooling treatment in the front section enters the bag dust removal area from the bottom of the equipment through a pipeline to intercept solid particulate matter. The intercepted particulate matter is sprayed into the lower hopper through the blowing component for unified recovery; the treated flue gas passes through the top of the equipment and enters the pulse plasma reaction area. The pulse energy is generated by the pulse power supply component and decomposes the flue gas components in the pulse plasma reaction area through the pole line. When the flue gas passes through the pulse plasma area, the components in the gas are decomposed into harmless substances by the high-energy electric field and electron bond breaking. The auxiliary absorption area absorbs the unreacted components in the flue gas and reacts with the oxidized components in the pulse plasma reaction area again in the absorption area. The filler in the auxiliary absorption area can extend its service life by the excess oxidation products in the plasma area and then be discharged through the outlet. The equipment uses high-voltage pulse discharge of the discharge electrode to form a pulse plasma reaction zone to harmlessly treat the flue gas. No wastewater or waste gas is discharged, and maintenance only requires bag cleaning. It is easy to maintain, economical and practical. The equipment occupies a smaller area than other equipment, has higher processing efficiency, shorter installation cycle, and stronger adaptability to working conditions. The control system of the crematorium flue gas treatment equipment of the present invention can adjust the power in real time according to the flue gas composition, automatically control the input power of the reaction zone, save energy while better treating the emission of flue gas.

[0056] Example 2

[0057] The technical solution of the present invention is a method for treating smoke from a cremator, which uses the smoke treatment equipment for a cremator described in Example 1, comprising:

[0058] When the device is started, the controller uses the open circuit detection module to detect whether the device is grounded. If the device is not grounded, the controller disconnects the power module circuit. If the device is grounded, the controller connects the power module circuit and operates normally.

[0059] The controller controls the air supply fan through the frequency converter, and at the same time, the power supply component and the pulse discharge component are operated through the power control module; the gas enters the bag dust removal area and passes through the bag to filter the solid particulate matter in the flue gas; the filtered gas enters the pulse plasma reaction area, and the discharge electrode generates a high-energy electric field and high-energy electrons under the high-voltage pulse output of the power module, which breaks the bonds of harmful gases in the gas and decomposes them into harmless substances. At the same time, corona discharge produces oxidizing substances, and the highly oxidizing substances undergo redox reactions with harmful gases; the residual and unreacted harmful gases enter the auxiliary absorption area and are absorbed by the absorption filler. The excess oxidizing substances generated in the pulse plasma reaction area will continue to react with the harmful gases in the absorption filler; finally, the purified air is discharged;

[0060] During the operation of the equipment, the controller adjusts the output power of the power supply component in real time based on the gas information fed back by the front flue gas detection meter, the rear flue gas detection meter and the oxidation equivalent detection meter, thereby adjusting the reaction energy of the pulsed plasma reaction zone;

[0061] During the operation of the equipment, the controller controls the operation of the pulse spray solenoid valve according to the pressure information fed back by the front pressure gauge and the rear pressure gauge, so that the spray assembly cleans the bag;

[0062] During the operation of the equipment, the controller controls the operation of the air supply fan and power components based on the temperature information fed back by the temperature meter.

[0063] The above is a schematic description of the present invention and its embodiments, which is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by this and, without departing from the purpose of the present invention, designs a structure and embodiment similar to this technical solution without inventiveness, they shall fall within the scope of protection of the present invention.

Claims

1. A crematorium flue gas treatment device, characterized in that: The device comprises an integrated device body, wherein the device body is provided with an air inlet and an air outlet, and the device body is provided with a bag dust removal area, a pulse plasma reaction area, an auxiliary absorption area and an electrical area, the air inlet, the bag dust removal area, the pulse plasma reaction area, the auxiliary absorption area and the air outlet are arranged in sequence along the gas flow direction, the bag dust removal area is provided with a bag and a blowing assembly, the blowing assembly is located on the side of the bag away from the air inlet, the electrical area is provided with a controller and a power supply assembly, the pulse plasma reaction area is provided with a pulse discharge assembly, the auxiliary absorption area is provided with an absorption filler, the controller is electrically connected to the power supply assembly, and the power supply assembly is electrically connected to the pulse discharge assembly through a power lead-in line; The pulse discharge assembly includes a grounding frame and a discharge electrode wire. The grounding frame includes a fixing plate, a fixing bracket and a grounding electrode tube. The grounding electrode tube array is arranged between the fixing plates. The fixing bracket is connected to the fixing plate and is located at both ends of the grounding electrode tube. The grounding electrode tube is a hollow tube. The discharge electrode wire is arranged in the grounding electrode tube. The two ends of the discharge electrode wire are respectively connected to the fixing bracket. The discharge electrode wire is connected to the output end of the power module through the power supply lead-in line. The discharge electrode includes an electrode body, a discharge sheet sleeved on the electrode body, a cylindrical barrel arranged between the discharge sheets, and conical barrels arranged at both ends of the electrode body. The outer periphery of the discharge sheet is evenly provided with raised discharge parts. The upper and lower end surfaces of the cylindrical barrel and the end surface of the conical barrel close to the discharge sheet are provided with positioning grooves and positioning blocks. The positioning grooves and positioning blocks on the upper end surface of the cylindrical barrel are staggered with the positioning grooves and positioning blocks on the lower end surface of the same cylindrical barrel. The discharge part is limited to the positioning grooves and positioning blocks adjacent to the discharge part, and the discharge part protrudes from the surface of the cylindrical barrel and the surface of the conical barrel. The discharge parts of adjacent discharge sheets are staggered along the axial direction of the electrode body.

2. The crematorium flue gas treatment equipment according to claim 1, characterized in that: A front pressure gauge is provided on the side of the cloth bag close to the air inlet, a rear pressure gauge and a front flue gas detection gauge are provided on the side of the cloth bag close to the pulse plasma reaction zone, and a rear flue gas detection gauge and an oxidation equivalent detection gauge are provided on the side of the auxiliary absorption zone close to the air outlet. The front pressure gauge, the rear pressure gauge, the front flue gas detection gauge, the rear flue gas detection gauge and the oxidation equivalent detection gauge are electrically connected to the controller respectively.

3. The crematorium flue gas treatment equipment according to claim 1, characterized in that: The controller is electrically connected to an external air supply fan and a spray compressor through a frequency converter. The air supply fan is used to supply smoke. The spray compressor is connected to the spray component through a pulse spray solenoid valve. The pulse spray solenoid valve is electrically connected to the controller.

4. The fume treatment equipment for a crematorium according to claim 1, characterized in that: It also includes a power control module and an open circuit detection module. The controller is electrically connected to the power control module, and the power control module is electrically connected to the power supply component. The controller adjusts the output power of the power supply component and obtains the current output power through the power control module. The controller is electrically connected to the open circuit detection module, and the open circuit detection module is electrically connected to the power supply component.

5. The crematorium flue gas treatment equipment according to claim 1, characterized in that: The air inlet is provided with a temperature meter, and the temperature meter is electrically connected to the controller.

6. The crematorium flue gas treatment equipment according to claim 1, characterized in that: It also includes a communication module and a control panel, and the communication module and the control panel are electrically connected to the controller respectively.

7. The crematorium flue gas treatment equipment according to any one of claims 1 to 4, characterized in that: A bag discharge hopper is provided below the bag dust removal area.

8. A method for treating smoke from a crematorium, characterized in that: The crematorium flue gas treatment device according to any one of claims 1 to 7 comprises: When the device is started, the controller uses the open circuit detection module to detect whether the device is grounded. If the device is not grounded, the controller disconnects the power module circuit. If the device is grounded, the controller connects the power module circuit and operates normally. The controller controls the air supply fan through the frequency converter, and at the same time, the power supply component and the pulse discharge component are operated through the power control module; the gas enters the bag dust removal area and passes through the bag to filter the solid particulate matter in the flue gas; the filtered gas enters the pulse plasma reaction area, and the discharge electrode generates a high-energy electric field and high-energy electrons under the high-voltage pulse output of the power module, which breaks the bonds of harmful gases in the gas and decomposes them into harmless substances. At the same time, corona discharge produces oxidizing substances, and the highly oxidizing substances undergo redox reactions with harmful gases; the residual and unreacted harmful gases enter the auxiliary absorption area and are absorbed by the absorption filler. The excess oxidizing substances generated in the pulse plasma reaction area will continue to react with the harmful gases in the absorption filler; finally, the purified air is discharged; During the operation of the equipment, the controller adjusts the output power of the power supply component in real time based on the gas information fed back by the front flue gas detection meter, the rear flue gas detection meter and the oxidation equivalent detection meter, thereby adjusting the reaction energy of the pulsed plasma reaction zone; During the operation of the equipment, the controller controls the operation of the pulse spray solenoid valve according to the pressure information fed back by the front pressure gauge and the rear pressure gauge, so that the spray assembly cleans the bag; During the operation of the equipment, the controller controls the operation of the air supply fan and power components based on the temperature information fed back by the temperature meter.

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