A dioxin treatment device for waste incineration
Patent Information
- Application Number
- CN202521099972.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-30
- Publication Date
- 2026-09-04
- Estimated Expiration
- 2035-05-30
AI Technical Summary
[0003]现有对二噁英的主要处理方法有高温焚烧、活性炭吸附、化学与催化处理等，采用高温焚烧方式对二噁英进行处理时，容易存在二噁英反应不完全，并且再次生成的问题
1、本申请通过设置雾化喷油器将二噁英废气与油液混合喷出，使得二噁英在混合过程中能部分溶于雾化油液中，并在一级焚烧仓内进行焚烧，这样可以提升对二噁英的处理效果，并通过二级焚烧仓对二噁英进一步高温处理，控制二噁英处理时间；
Smart Images
Figure CN224718802U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a dioxin treatment device, and more particularly to a waste incineration dioxin treatment device. Background Technology
[0002] Dioxins are a collective term for polychlorinated dibenzo-dioxins and polychlorinated dibenzofurans, belonging to the class of highly toxic chlorinated organic chemicals. They are byproducts of combustion and various industrial production processes, mainly originating from industrial activities such as waste incineration, chemical and metallurgical processes, papermaking, pesticide production, and automobile exhaust emissions. They are classified as Group 1 carcinogens by the WHO, and long-term exposure can lead to liver cancer, lung cancer, soft tissue sarcomas, and other cancers.
[0003] The main existing methods for treating dioxins include high-temperature incineration, activated carbon adsorption, and chemical and catalytic treatment. However, when using high-temperature incineration to treat dioxins, there is a risk of incomplete dioxin reaction and regeneration. Summary of the Invention
[0004] The purpose of this invention is to provide a dioxin treatment device for waste incineration. It can improve the dioxin reaction efficiency and reduce the possibility of regeneration.
[0005] The technical solution of this utility model is as follows: A waste incineration dioxin treatment device includes a heat exchange mechanism, a dust removal mechanism, an incineration mechanism, a cooling mechanism, a spraying mechanism, and an activated carbon adsorption mechanism arranged in sequence. The incineration mechanism includes an incinerator, which has a primary incineration chamber and a secondary incineration chamber arranged in sequence in the direction of waste gas flow. The front end of the primary incineration chamber is provided with an atomizing oil injector and an air inlet pipe directly connected to the air outlet of the dust removal mechanism. The air inlet of the atomizing oil injector is connected to the air outlet of the dust removal mechanism, and the oil inlet of the atomizing oil injector is connected to an oil tank. The side of the secondary incineration chamber is provided with a combustible gas inlet, and the bottom of the primary and secondary incineration chambers is provided with oxygen supply pipes. The cooling mechanism includes a heat exchange box located at the rear of the incinerator. The lower front end of the heat exchange box is provided with a waste gas inlet, and the upper rear end of the heat exchange box is provided with a waste gas outlet. The front and rear ends of the heat exchange box are provided with rotating seats that can rotate relative to the heat exchange box. A cold water pipe is arranged between the rotating seats in the front-rear direction. A drive motor that drives the rotating seats to rotate is provided at the rear of the heat exchange box.
[0006] In the aforementioned waste incineration dioxin treatment device, the dust removal mechanism is a bag filter mechanism. The dust removal mechanism includes a body, a partition in the middle of the body, multiple sets of dust collection bags that penetrate the partition and have their openings facing upwards in the partition, an exhaust port on the upper side wall of the body, an air inlet on the lower side wall of the body, a slag discharge port in the middle of the lower end of the body, a swing cleaning mechanism for cleaning the dust collection bags on the lower side of the partition, and a pulse cleaning mechanism on the upper side of the partition.
[0007] In the aforementioned waste incineration dioxin treatment device, the dust collector bag is a circular dust collector bag with a support frame inside.
[0008] In the aforementioned waste incineration dioxin treatment device, the pulse cleaning mechanism includes a mounting base. The upper end of the mounting base is provided with a telescopic rod connected to the top of the inner side of the machine body. A first return spring is provided between the telescopic rods. A first cam for driving the mounting base to move up and down is provided on the side wall of the machine body. The first cam is located on the upper side of the mounting base. An air supply pipe is provided in the mounting base. Evenly distributed backwash nozzles are provided on the lower side of the air supply pipe. The air supply pipe is connected to an air pump located outside the machine body via a corrugated hose. A support rod is provided on the lower side of the air supply pipe. The lower end of the support rod is connected to a rotating shaft located in a support frame via a universal joint. A spiral guide groove is provided outside the rotating shaft. A limiting block corresponding to the spiral guide groove is provided in the support frame. A stop block abutting against a dust collector bag is provided at the lower end of the rotating shaft.
[0009] In the aforementioned waste incineration dioxin treatment device, the swing cleaning mechanism includes an outer toothed ring located outside the dust collector bag, with evenly distributed mounting rods on the outer toothed ring, and cleaning brushes corresponding to the dust collector bag on the mounting rods. A rack is provided on one side of the outer toothed ring to drive the outer toothed ring to rotate, and a drive mechanism is provided on one side of the rack to drive the rack to swing back and forth.
[0010] In the aforementioned waste incineration dioxin treatment device, the drive mechanism includes a second cam disposed at one end of the rack and a second return spring disposed at the other end of the rack, with limiting strips provided on the outer sides of both ends of the rack.
[0011] Compared with the prior art, the present invention has the following advantages: 1. This application uses an atomizing oil injector to mix and spray dioxin waste gas with oil, so that dioxins can be partially dissolved in the atomized oil during the mixing process and burned in the primary incineration chamber. This can improve the treatment effect of dioxins, and the dioxins can be further treated at high temperature in the secondary incineration chamber to control the dioxin treatment time. 2. This application removes solid components from dioxin exhaust gas through a dust removal mechanism, preventing solid components from combining with oil and causing coking. Furthermore, the dust removal mechanism can achieve self-cleaning, thus improving the exhaust gas filtration effect. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the dust removal mechanism of this utility model; Figure 3 This is a schematic diagram of the cooling mechanism of this utility model; Figure 4 This is a schematic diagram of the structure of the incinerator of this utility model.
[0013] The labels in the attached diagram are as follows: 1-Incinerator, 2-Primary incineration chamber, 3-Secondary incineration chamber, 4-Atomizing oil injector, 5-Inlet pipe, 6-Oil tank, 7-Combustible gas inlet, 8-Oxygen supply pipe, 9-Main body, 10-Baffle plate, 11-Dust collector bag, 12-Exhaust port, 13-Inlet, 14-Slag discharge port, 15-First cam, 16-Gas delivery pipe, 17-Backflush nozzle, 18-First return spring, 19-Support rod, 20-Universal joint 21-Head, 22-Rotating shaft, 23-Limiting block, 24-Abutting block, 25-External gear ring, 26-Mounting rod, 27-Cleaning brush, 30-Rack, 31-Second cam, 32-Second return spring, 33-Limiting strip, 34-Heat exchange box, 35-Exhaust gas inlet, 36-Exhaust gas outlet, 37-Rotating seat, 38-Cold water pipe, 39-Drive motor, 40-Supporting frame, 41-Mounting seat, 42-Telescopic rod. Detailed Implementation
[0014] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.
[0015] Example. A waste incineration dioxin treatment device, configured as follows: Figure 1 As shown, it includes a heat exchange mechanism, a dust removal mechanism, an incineration mechanism, a cooling mechanism, a spraying mechanism, and an activated carbon adsorption mechanism arranged in sequence. The incineration mechanism includes an incinerator 1. The incinerator 1 has a primary incineration chamber 2 and a secondary incineration chamber 3 arranged in sequence in the direction of exhaust gas flow. The front end of the primary incineration chamber 2 is equipped with an atomizing oil injector 4 and an air inlet pipe 5 directly connected to the air outlet of the dust removal mechanism. The air inlet of the atomizing oil injector 4 is connected to the air outlet of the dust removal mechanism, and the oil inlet of the atomizing oil injector 4 is connected to the oil tank 6. The side of the secondary incineration chamber 3 is equipped with a combustible gas inlet 7. The bottom of the primary incineration chamber 2 and the secondary incineration chamber 3 are equipped with oxygen supply pipes 8.
[0016] The dust removal mechanism is a bag filter mechanism, comprising a body 9, a partition 10 in the middle of the body 9, multiple sets of dust collection bags 11 passing through the partition 10 with their openings facing upwards, an exhaust port 12 on the upper side wall of the body 9 of the partition 10, an air inlet 13 on the lower side wall of the body 9 of the partition 10, a slag discharge port 14 in the middle of the lower end of the body 9, a swing cleaning mechanism for cleaning the dust collection bags 11 on the lower side of the partition 10, and a pulse cleaning mechanism on the upper side of the partition 10; the dust collection bags 11 are circular in cross-section, and a support frame 40 is provided inside the dust collection bags 11; the pulse cleaning mechanism includes a mounting base 41, and a telescopic rod connected to the top of the inner side of the body 9 is provided at the upper end of the mounting base 41. 42. A first return spring 18 is provided between the telescopic rods 42. A first cam 15 is provided on the side wall of the body 9 for driving the mounting base 41 to move up and down. The first cam 15 is located on the upper side of the mounting base 41. An air supply pipe 16 is provided in the mounting base 41. A backwash nozzle 17 is provided on the lower side of the air supply pipe 16. The air supply pipe 16 is connected to an air pump located outside the body 9 through a corrugated hose. A support rod 19 is provided on the lower side of the air supply pipe 16. The lower end of the support rod 19 is connected to a rotating shaft 21 located in the support frame 40 through a universal joint 20. A spiral guide groove 22 is provided on the outside of the rotating shaft 21. A limiting block 23 corresponding to the spiral guide groove 22 is provided in the support frame 40. A stop block 24 abutting against the dust collector bag 11 is provided on the lower end of the rotating shaft 21.
[0017] The swing cleaning mechanism includes an outer toothed ring 25 located on the outside of the dust collector bag 11. The outer toothed ring 25 is provided with evenly distributed mounting rods 26. The mounting rods 26 are provided with cleaning brushes 27 corresponding to the dust collector bag 11. A rack 30 is provided on one side of the outer toothed ring 25 to drive the outer toothed ring 25 to rotate. A drive mechanism is provided on one side of the rack 30 to drive the rack 30 to swing back and forth.
[0018] The drive mechanism includes a second cam 31 disposed at one end of the rack 30 and a second return spring 32 disposed at the other end of the rack 30, and limit strips 33 are provided on the outer sides of both ends of the rack 30.
[0019] The cooling mechanism includes a heat exchange box 34 located at the rear of the incinerator 1. The heat exchange box 34 has a waste gas inlet 35 at the lower front end and a waste gas outlet 36 at the upper rear end. The heat exchange box 34 has rotating seats 37 at both ends that can rotate relative to it. A cold water pipe 38 is arranged between the rotating seats 37 in the front-to-back direction. A drive motor 39 is located at the rear of the heat exchange box 34 to drive the rotating seats 37 to rotate.
[0020] The principle of this invention is as follows: In use, dioxin-laden gas is treated through a conventional heat exchange mechanism to reduce its temperature, thus preventing severe aging and damage to the dust collector bag 11. The dioxin-laden gas then enters the dust collection mechanism to remove solid particles, preventing these particles from combining with oil in subsequent processes and causing blockages. Dioxin exhaust gas enters the machine body 9 through the air inlet 13 and is filtered by the dust collector bag 11. During filtration, the dust collector bag 11 is cleaned by a swing cleaning mechanism. A drive mechanism drives the rack 30 to swing back and forth. The rack 30 rotates via the second cam 31, compressing the second return spring 32. The second return spring 32 ensures that the end face of the rack 30 always abuts against the second cam 31, thus achieving the reciprocating motion of the rack 30. During this motion, the rack 30 engages with the outer gear ring 25, causing the outer gear ring 25 to rotate. The outer gear ring 25 then drives the mounting rod 26 to rotate, allowing the cleaning brush 27 to clean the surface of the dust collector bag, achieving a good self-cleaning effect. The swing cleaning mechanism can be used in the dust collection mechanism. The cleaning mechanism is used during the cleaning process, while the pulse cleaning mechanism is used when the machine is stopped. The first cam 15 rotates, causing the mounting base 41 to move. The movement of the mounting base 41 causes the backwash nozzle 17 to move downward, allowing the backwash nozzle to enter the inside of the dust collector bag and achieve backwashing. By controlling the amount of air jet, the shape of the dust collector bag 11 changes, causing impurities on the surface of the dust collector bag to detach. The backwash nozzle 17 is a side-exit backwash nozzle 17. A support rod 19 is provided on the lower side of the backwash nozzle 17, and a rotating shaft 21 is provided under the support rod 19. When the rotating shaft 21 moves downward, it can rotate through the cooperation of the limiting block 23 and the spiral guide groove 22, causing the abutment block 24 at the lower part of the rotating shaft 21 to move relative to the inner surface of the dust collector bag 11, causing impurities on the outer surface of the dust collector bag 11 to detach. Next, the exhaust gas enters the air inlet of the atomizing injector 4, which is connected to the oil tank 5. During atomization, the oil fully contacts and absorbs the dioxins, dissolving some of them in the oil. This further enhances dioxin removal during the incineration process. The uniform mixing of the dioxin-laden exhaust gas and oil further improves dioxin removal. Temperature control is achieved by adjusting the oxygen supply, ensuring the temperature in the primary incineration chamber 2 is not lower than 850 degrees Celsius. The gas then enters the secondary incineration chamber 3 for further high-temperature treatment to prevent insufficient treatment of dioxins in the primary chamber 2. After high-temperature treatment, the exhaust gas enters a cooling mechanism for rapid cooling to prevent the regeneration of dioxins.Exhaust gas enters through exhaust gas inlet 35 and flows along the internal space of heat exchange box 34. The heat exchange box is equipped with front and rear cold water pipes, and the cold water pipes 38 are further equipped with fins to cool the exhaust gas. The drive motor can drive the rotating seat 37 to rotate the cold water pipes 38, thereby improving the heat exchange effect. The drive motor 39 is located at the rear of the heat exchange box 34 to avoid high temperature affecting the life of the drive motor. Finally, the exhaust gas passes through a spray mechanism to remove acidic gases, and is further adsorbed by an activated carbon adsorption mechanism to ensure the reliability of the treatment.
Claims
1. A waste incineration dioxin treatment device, comprising a heat exchange mechanism, a dust removal mechanism, an incineration mechanism, a cooling mechanism, a spraying mechanism, and an activated carbon adsorption mechanism arranged sequentially, characterized in that, The incineration mechanism includes an incinerator (1), which has a primary incineration chamber (2) and a secondary incineration chamber (3) arranged in sequence in the direction of exhaust gas flow. The front end of the primary incineration chamber (2) is provided with an atomizing oil injector (4) and an air inlet pipe (5) directly connected to the air outlet of the dust removal mechanism. The air inlet of the atomizing oil injector (4) is connected to the air outlet of the dust removal mechanism, and the oil inlet of the atomizing oil injector (4) is connected to the oil tank (6). The side of the secondary incineration chamber (3) is provided with a combustible gas inlet (7), and the bottom of the primary incineration chamber (2) and the secondary incineration chamber (3) is provided with an oxygen supply pipe (8).
2. The waste incineration dioxin treatment device according to claim 1, characterized in that: The dust removal mechanism is a bag filter mechanism, which includes a body (9), a partition (10) in the middle of the body (9), a plurality of dust removal bags (11) passing through the partition (10) and with their openings facing upwards in the partition (10), an exhaust port (12) on the side wall of the body (9) above the partition (10), an air inlet (13) on the side wall of the body (9) below the partition (10), a slag discharge port (14) in the middle of the lower end of the body (9), a swing cleaning mechanism for cleaning the dust removal bags (11) on the lower side of the partition (10), and a pulse cleaning mechanism on the upper side of the partition (10).
3. The waste incineration dioxin treatment device according to claim 2, characterized in that: The dust collector bag (11) is a dust collector bag with a circular cross-section, and a support frame (40) is provided inside the dust collector bag (11).
4. A waste incineration dioxin treatment device according to claim 2, characterized in that: The pulse cleaning mechanism includes a mounting base (41), with a telescopic rod (42) at the upper end of the mounting base (41) that connects to the top of the inner side of the body (9). A first return spring (18) is provided between the telescopic rods (42). A first cam (15) for driving the mounting base (41) to move up and down is provided on the side wall of the body (9). The first cam (15) is located on the upper side of the mounting base (41). An air supply pipe (16) is provided in the mounting base (41). A backwash nozzle (17) is evenly distributed on the lower side of the air supply pipe (16). The air supply pipe (16) is connected to the air pump located outside the machine body (9) through a corrugated hose; a support rod (19) is provided on the lower side of the air supply pipe (16), and the lower end of the support rod (19) is connected to the rotating shaft (21) located in the support frame (40) through a universal joint (20). A spiral guide groove (22) is provided on the outside of the rotating shaft (21), and a limiting block (23) corresponding to the spiral guide groove (22) is provided in the support frame (40). A stop block (24) is provided at the lower end of the rotating shaft (21) to abut against the dust collector bag (11).
5. A waste incineration dioxin treatment device according to claim 2, characterized in that: The swing cleaning mechanism includes an outer toothed ring (25) located on the outside of the dust collector bag (11), with evenly distributed mounting rods (26) on the outer toothed ring (25), and a cleaning brush (27) corresponding to the dust collector bag (11) on the mounting rods (26). A rack (30) is provided on one side of the outer toothed ring (25) to drive the outer toothed ring (25) to rotate, and a drive mechanism is provided on one side of the rack (30) to drive the rack (30) to swing back and forth.
6. A waste incineration dioxin treatment device according to claim 5, characterized in that: The drive mechanism includes a second cam (31) disposed at one end of the rack (30) and a second return spring (32) disposed at the other end of the rack (30), and limit strips (33) are provided on the outer sides of both ends of the rack (30).
7. A waste incineration dioxin treatment device according to claim 1, characterized in that: The cooling mechanism includes a heat exchange box (34) located at the rear of the incinerator (1). The heat exchange box (34) has an exhaust gas inlet (35) at the lower front end and an exhaust gas outlet (36) at the upper rear end. The heat exchange box (34) has rotating seats (37) at both ends that can rotate relative to the heat exchange box (34). The rotating seats (37) have a cold water pipe (38) arranged in the front-to-back direction between them. The heat exchange box (34) has a drive motor (39) at the rear to drive the rotating seats (37) to rotate.