Waste incineration fly ash filtering, collecting and treating device

Abstract

The invention discloses a waste incineration fly ash filtering, collecting and treating device, and relates to the technical field of fly ash filtering devices. The fly ash processor is arranged at the air inlet end of the exhaust pipeline, the fly ash processor is used for filtering and collecting fly ash in waste incineration gas, the fly ash processor comprises a filter shell, a mounting cover, two adsorption filter structures, a switching structure and two linkage ash removal structures, and an air inlet groove is formed in the front side of the upper part of the filter shell; the mounting cover is mounted on the front side of the filter shell, an air inlet located in the front side of the air inlet groove is formed in the mounting cover, two mounting grooves are formed between the air inlet groove and the rear side of the filter shell, and the two adsorption filter structures are mounted in the two mounting grooves respectively. Fly ash generated by waste incineration equipment can be filtered and collected in a centralized mode through the fly ash processor, and the two adsorption filtering structures are matched with the switching structure and the linkage ash removal structure to continuously conduct filtering and collecting work.

Description

Technical Field

[0001] This invention relates to the field of fly ash filtration devices, specifically to a fly ash filtration, collection, and treatment device for waste incineration. Background Technology

[0002] Waste incineration is the process of burning solid waste at high temperatures, converting its main components into gaseous and liquid pollutants and solid residues. Through pyrolysis, combustion, and post-treatment, volume reduction is achieved and harmful components are minimized. The fine particulate residues in fly ash from the waste incineration process usually contain a certain amount of harmful heavy metals and water-insoluble inorganic substances. Under safe conditions, some of these substances can be recycled.

[0003] CN113842730B discloses a waste incineration fly ash collection and treatment device, including a box body. A spraying device, a power device, a partition, a first filter screen and a second filter screen are fixedly connected inside the box body. A brushing device is installed on the upper end of the partition, and a knocking device is fixedly connected to the lower end of the brushing device. A discharge device is fixedly connected to the lower end of the box body. An air inlet pipe is fixedly connected to the front end of the box body, and an air outlet pipe is fixedly connected to the rear end of the box body.

[0004] When the fly ash collection and treatment device in the above technical solution is in use, fly ash will accumulate heavily on the filter screen after working for a period of time, so it is necessary to stop the machine frequently for cleaning, which will reduce efficiency, and the filter screen has a short service life and fly ash collection is inconvenient. Summary of the Invention

[0005] The purpose of this invention is to provide a waste incineration fly ash filtration and collection device, which solves the problems that fly ash accumulates heavily on the filter screen after a period of operation, requiring frequent shutdowns for cleaning, thus reducing efficiency, and also resulting in a short service life of the filter screen and inconvenient fly ash collection.

[0006] The present invention solves the above-mentioned technical problems through the following technical solutions, the present invention comprising: An exhaust pipe with a suction pump fixedly installed at its top; A fly ash processor is installed at the air inlet end of the exhaust pipe. The fly ash processor is used to filter and collect fly ash in the waste incineration gas. The fly ash processor includes a filter shell, a mounting cover, two sets of adsorption filtration structures, a switching structure, and two linked ash removal structures. An air inlet groove is opened on the front side of the upper part of the filter shell. The mounting cover is installed on the front side of the filter shell and has an air inlet located in front of the air inlet groove. Two mounting grooves are opened between the air inlet groove and the rear side of the filter shell. The two sets of adsorption filtration structures are respectively installed in the two mounting grooves. An adsorption filtration structure is used to adsorb and filter fly ash in a gas. The adsorption filtration structure includes a filter layer, a mounting frame, and multiple corona wires. The mounting frame is installed on the rear edge of the air inlet slot. The filter layer is installed inside the mounting frame and located inside the mounting slot. Multiple mounting areas are spaced apart on the filter layer. Multiple corona wires are located inside the mounting slot and installed in the mounting areas. The switching structure is used to switch between the use of two sets of adsorption filtration structures. The switching structure includes a multi-stage hydraulic cylinder and a control board. The control board is installed in the mounting slot. The multi-stage hydraulic cylinder is fixedly installed on one side of the filter shell. The control board is installed at the output end of the multi-stage hydraulic cylinder. The linkage de-ashing structure is used to remove and collect fly ash from the adsorption filter structure when switching the adsorption filter structure. A ash discharge port is provided at the bottom front side of the adsorption filter structure in the installation groove.

[0007] Preferably, the linkage de-ashing structure is located on both sides of the top of the filter shell. The linkage de-ashing structure includes a contact plate, a liquid storage tank, an installation cylinder, a connecting pipe, a control rod, and a scraper. The liquid storage tank is installed on the top of the filter shell, and a through groove is formed between the liquid storage tank and the air inlet groove. The top of the contact plate passes through the through groove and is disposed in the liquid storage tank. A sealing plate is installed on the top of the contact plate and is secured in the liquid storage cavity. The installation cylinder is fixedly installed on the top of the filter shell and is located above the installation groove. The scraper is attached to the top of the front side of the filter layer. A through hole is formed between the installation groove and the top of the filter shell. The control rod is installed on the top of the scraper and the top of the control rod passes through the through hole and is disposed in the installation cylinder. A sealing plate is installed on the top of the control rod and is secured in the installation cylinder.

[0008] Preferably, the reservoir is filled with a conductive medium, which is hydraulic oil or water.

[0009] Preferably, the linkage ash removal structure further includes a limiting spring, which is sleeved on the outside of the control rod and located between the sealing plate and the inner wall of the mounting cylinder.

[0010] Preferably, the bottom of the contact plate is a sloping surface that gradually narrows from the edge of the fly ash processor towards the center, and the top two sides of the control plate are provided with contact arc surfaces.

[0011] Preferably, the scraper blade has multiple slots on its rear side, and the corona wire is secured in the slots.

[0012] Preferably, a baffle is installed at the bottom of the scraper blade via a connecting rod, and the baffle is engaged in the ash discharge port.

[0013] Preferably, a dust collection chamber is provided between the dust discharge port and the bottom of the filter shell, a dust collection shell communicating with the dust collection chamber is installed at the bottom of the filter shell, and a dust discharge pipe is installed at the bottom of the dust collection shell.

[0014] Preferably, a connecting pipe is installed on the mounting cover, and the connecting pipe is located outside the air inlet.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0016] 1. This invention uses a fly ash processor to filter and collect fly ash generated by waste incineration equipment. The two sets of adsorption and filtration structures, together with the switching structure and the linkage deashing structure, can continuously perform filtration and collection work, thereby greatly improving efficiency.

[0017] 2. The adsorption filtration structure in this invention consists of a filter layer and a corona wire. When in use, the corona wire can adsorb most of the fly ash around the corona wire, thus greatly reducing the amount of fly ash adhering to the filter layer and extending the service life of the filter layer.

[0018] 3. In this invention, the linkage de-ashing structure automatically cleans the adsorption filter component that is saturated with fly ash according to the use of the adsorption filter component, resulting in good cleaning effect and high accuracy. Attached Figure Description

[0019] Figure 1 This is a front structural view of the present invention; Figure 2 This is a rear view of the structure of the present invention; Figure 3 This is a front structural view of the fly ash processor of the present invention; Figure 4 This is a rear view of the fly ash processor of the present invention; Figure 5 This is a view of the internal structure of the filter housing of the present invention; Figure 6 This is a front view of the adsorption filtration structure of the present invention; Figure 7 This is an exploded view of the linkage deashing structure of the present invention; Figure 8 This is a cross-sectional view of the filter housing of the present invention.

[0020] The numbers in the image represent: 1. Exhaust pipe; 2. Suction pump; 3. Fly ash processor; 4. Filter shell; 5. Mounting cover; 6. Adsorption filtration structure; 601. Filter layer; 602. Mounting frame; 603. Corona wire; 7. Switching structure; 701. Multi-stage hydraulic cylinder; 702. Control board; 8. Linked ash removal structure; 801. Contact plate; 802. Liquid storage tank; 803. Mounting cylinder; 804. Connecting pipe; 805. Control rod; 806. Scraper; 807. Limit spring; 9. Slot; 10. Baffle; 11. Ash collection chamber; 12. Ash collection shell; 13. Ash discharge pipe; 14. Connecting pipe; 15. Air inlet slot; 16. Air inlet; 17. Mounting slot; 18. Ash discharge port. Detailed Implementation

[0021] The above-mentioned and other technical features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

[0022] This embodiment provides a technical solution: a waste incineration fly ash filtration, collection, and treatment device, such as... Figures 1-8 As shown, the present invention includes an exhaust pipe 1 and a fly ash processor 3.

[0023] In specific implementations, such as Figure 1 and Figure 2 As shown, an air intake pump 2 is fixedly installed on the top of the exhaust pipe 1. A fly ash processor 3 is installed at the air inlet end of the exhaust pipe 1. The fly ash processor 3 is used to filter and collect fly ash in the waste incineration gas. The fly ash processor 3 is connected to the exhaust end of the waste incineration equipment. The flue gas and fly ash generated in the waste incineration equipment can enter the fly ash processor 3. The fly ash processor 3 includes a filter shell 4, a mounting cover 5, two sets of adsorption filter structures 6, a switching structure 7, and two linkage ash removal structures 8. An air inlet groove 15 is opened on the front side of the upper part of the filter shell 4. The mounting cover 5 is installed on the front of the filter shell 4. An air inlet 16 is provided on the side of the mounting cover 5, located in front of the air inlet slot 15. The exhaust end of the waste incineration equipment is connected to the air inlet 16. After being processed by the adsorption filter structure 6, the fly ash in the incineration gas can be filtered. Two mounting slots 17 are provided between the air inlet slot 15 and the rear side of the filter shell 4. The two sets of adsorption filter structures 6 are installed in the two mounting slots 17 respectively. When the gas containing fly ash passes through the mounting slots 17, the fly ash is processed by the adsorption filter structure 6. The filtered gas is discharged from the mounting slots 17 and enters the exhaust pipe 1, and is finally discharged through the exhaust pipe 1.

[0024] In specific implementations, such as Figures 3-6As shown, the adsorption filter structure 6 is used to adsorb and filter fly ash in the gas. The adsorption filter structure 6 includes a filter layer 601, a mounting frame 602, and multiple corona wires 603. The mounting frame 602 is installed on the rear edge of the air inlet slot 15. The filter layer 601 is installed inside the mounting frame 602 and located in the mounting slot 17. The filter layer 601 is a PTFE film, an activated carbon layer, or a composite layer composed of two materials. Multiple mounting areas are spaced apart on the filter layer 601. Multiple corona wires 603 are located in the mounting slot 17 and installed in the mounting areas. The corona wires 603 are connected to an external power supply. After being powered on, the corona wires 603 can adsorb fly ash. The filter layer 601 can ensure that the fly ash remains near the corona wires 603, thereby ensuring the adsorption effect. The mounting frame 602 can be equipped with support rods to reinforce the filter layer 601 to further ensure the stability of the filter layer 601.

[0025] In specific implementations, such as Figures 3-5 As shown, the switching structure 7 is used to switch the use of two sets of adsorption filter structures 6. The switching structure 7 includes a multi-stage hydraulic cylinder 701 and a control plate 702. The control plate 702 is installed in the mounting slot 17. The multi-stage hydraulic cylinder 701 is fixedly installed on one side of the filter housing 4. The control plate 702 is installed at the output end of the multi-stage hydraulic cylinder 701. The length of the control plate 702 is greater than the length of one mounting slot 17, while the length of the control plate 702 is less than the set length of two mounting slots 17. The multi-stage hydraulic cylinder 701 can drive the control plate 702 to move left and right continuously in the air inlet slot 15. Therefore, the control plate 702 can alternately cover one of the mounting slots 17, and the control plate 702 cannot cover two mounting slots 17 at the same time. This allows the two sets of adsorption filter structures 6 to be used alternately, and can ensure that normal exhaust can always be achieved. The use of the adjustable speed multi-stage hydraulic cylinder 701 can control the movement speed of the multi-stage hydraulic cylinder 701 to control the speed of the control plate 702, thereby controlling the usage time of one adsorption filter structure 6.

[0026] In specific implementations, such as Figures 4-8As shown, the linkage de-ashing structure 8 is used to remove and collect fly ash adhering to the adsorption filter structure 6 when switching the adsorption filter structure 6. A ash discharge port 18 is located at the bottom front of the adsorption filter structure 6 within the mounting groove 17. The ash discharge port 18 can collect the fly ash filtered out within the mounting groove 17. The linkage de-ashing structure 8 is located on both sides of the top of the filter shell 4. The linkage de-ashing structure 8 includes a contact plate 801, a liquid storage tank 802, a mounting cylinder 803, a connecting pipe 804, a control rod 805, and a scraper 806. The liquid storage tank 802 is installed on the top of the filter shell 4. A through groove is provided between the liquid storage tank 802 and the air inlet groove 15. The top of the contact plate 801 passes through the through groove and is located inside the liquid storage tank 802. A sealing plate is installed on the top of the contact plate 801, and the sealing plate is locked inside the liquid storage cavity. When the control plate 702 covers one of the mounting grooves 17, it can push the contact plate 801 on one side of the mounting groove 17 and push the contact plate 801 upwards, thus enabling the liquid storage... The medium inside the tank 802 is pushed upwards. The mounting cylinder 803 is fixedly installed on the top of the filter shell 4 and is located above the mounting groove 17. The scraper plate 806 is attached to the top front side of the filter layer 601. A through hole is provided between the mounting groove 17 and the top of the filter shell 4. The control rod 805 is installed on the top of the scraper plate 806 and the top of the control rod 805 passes through the through hole and is set inside the mounting cylinder 803. A sealing plate is installed on the top of the control rod 805 and is locked inside the mounting cylinder 803. After the medium in the storage tank 802 moves upwards, it can enter the mounting cylinder 803 through the connecting pipe 804. Therefore, the control rod 805 can be pushed downwards. The control rod 805 can push the scraper plate 806 downwards, thereby pushing the dust on the filter layer 601 and the corona wire 603 downwards and pushing the fly ash downwards into the ash discharge port 18. This completes the fly ash collection and cleans the fly ash on the adsorption filter structure 6, thus ensuring the continuous operation of the adsorption filter structure 6.

[0027] Furthermore, the liquid storage tank 802 is filled with a conductive medium, which is hydraulic oil or water. The liquid medium ensures good transmission effect.

[0028] Furthermore, the linkage dust removal structure 8 also includes a limiting spring 807. The limiting spring 807 is sleeved on the outside of the control rod 805 and is located between the sealing plate and the inner wall of the mounting cylinder 803. Therefore, it can work with negative pressure to accurately reset the control rod 805.

[0029] Furthermore, the bottom of the contact plate 801 is a sloping surface that gradually narrows from the edge of the fly ash processor 3 towards the center, and the top two sides of the control plate 702 are provided with contact arc surfaces, thus ensuring that the control plate 702 can smoothly push the contact plate 801 upward.

[0030] Furthermore, the scraper blade 806 has multiple slots 9 on its rear side, and the corona wire 603 is inserted into the slots 9. This ensures that the scraper blade 806 can clean the fly ash on the corona wire 603. The contact part between the inner wall of the slot 9 and the corona wire 603 can be made of high-temperature resistant plastic or rubber to ensure good safety.

[0031] Furthermore, a baffle 10 is installed at the bottom of the scraper plate 806 via a connecting rod. The baffle 10 is locked inside the ash discharge port 18. The baffle 10 can prevent gas from entering the ash discharge port 18 when filtering gas. The upper surface of the baffle 10 is set as an inclined surface, so it can ensure that when the fly ash above falls above the baffle 10, it can still move normally into the ash discharge port 18.

[0032] Furthermore, an ash collection chamber 11 is provided between the ash discharge port 18 and the bottom of the filter shell 4. An ash collection shell 12 connected to the ash collection chamber 11 is installed at the bottom of the filter shell 4. An ash discharge pipe 13 is installed at the bottom of the ash collection shell 12. The fly ash collected in the upper ash discharge port 18 can enter the ash collection shell 12 through the ash collection chamber 11 and can finally be discharged through the ash discharge pipe 13. The fly ash can be collected using a container, thus facilitating subsequent centralized treatment.

[0033] Furthermore, a connecting pipe 14 is installed on the mounting cover 5. The connecting pipe 14 is located outside the air inlet, and the fly ash processor 3 can be easily connected to the exhaust end of the waste incineration equipment through the connecting pipe 14.

[0034] When in use, the fly ash filtration and collection device for waste incineration can be easily connected to the exhaust end of the waste incineration equipment via connecting pipe 14. All electrical components in the device are connected to an external power source and started. Under the negative pressure suction of the suction pump 2, the exhaust gas generated by the waste incineration equipment enters the inlet slot and then the installation slot, contacting the filter layer 601. The filter layer 601 filters the fly ash in the gas, while the corona wire 603 adsorbs most of the fly ash, thus ensuring minimal fly ash adhering to the filter layer 601 and significantly extending its service life. The multi-stage hydraulic cylinder 701 drives the control plate 702 to move back and forth continuously. After a period of time, the corona wire 603 in the adsorption filter structure 6 is covered with fly ash. The control plate 702 can then move to cover the installation slot, simultaneously contacting the contact plate 801 on one side of the installation slot and pushing it upwards. Subsequently, the contact plate 801 drives the sealing plate upwards, sealing the... The plate can push the liquid medium in the storage tank 802 upward and enter the mounting cylinder 803 through the connecting pipe 804. Under the squeezing action, it can push the control rod 805 in the mounting cylinder 803 downward. The control rod 805 can push the scraper plate 806 downward. Therefore, the scraper plate 806 can remove the fly ash on the filter layer 601 and the corona wire 603 and push it downward. Then the fly ash can enter the ash discharge port. The fly ash collected in the ash discharge port can enter the ash collection shell 12 through the ash collection chamber 11, and finally pass through the ash discharge pipe 13. The fly ash can be collected in a container after discharge, which facilitates subsequent centralized treatment. At the same time, another set of adsorption and filtration structures 6 can perform filtration. When the multi-stage hydraulic cylinder 701 drives the control plate 702 to return, the contact plate 801 can move downward under the action of gravity. The control rod 805 and the scraper plate 806 can move upward and reset under the elastic force of the limit spring 807 and the negative pressure suction from above. After the adsorption and filtration structure 6 is cleaned, the mounting groove where the filtration structure is located is exposed, so that the next working cycle can be carried out.

[0035] The above are merely preferred embodiments of the present invention and are illustrative in nature, not restrictive. Those skilled in the art will understand that many changes, modifications, and even equivalents can be made within the spirit and scope defined by the claims of the present invention, all of which will fall within the protection scope of the present invention.

Claims

1. A waste incineration fly ash filtration, collection, and treatment device, characterized in that, include: An exhaust pipe (1) has an air pump (2) fixedly installed on its top. The fly ash processor (3) is installed at the air inlet end of the exhaust pipe (1). The fly ash processor (3) is used to filter and collect fly ash in the waste incineration gas. The fly ash processor (3) includes a filter shell (4), a mounting cover (5), two sets of adsorption filter structures (6), a switching structure (7), and two linkage deashing structures (8). The upper part of the filter shell (4) has an air inlet groove (15) on the front side. The mounting cover (5) is installed on the front side of the filter shell (4) and has an air inlet (16) on the mounting cover (5) located on the front side of the air inlet groove (15). Two mounting grooves (17) are opened between the air inlet groove (15) and the rear side of the filter shell (4). The two sets of adsorption filter structures (6) are installed in the two mounting grooves (17) respectively. The adsorption filter structure (6) is used to adsorb and filter fly ash in the gas. The adsorption filter structure (6) includes a filter layer (601), a mounting frame (602) and multiple corona wires (603). The mounting frame (602) is installed on the rear edge of the air inlet slot (15). The filter layer (601) is installed in the mounting frame (602) and the filter layer (601) is located in the mounting slot (17). Multiple mounting areas are spaced apart on the filter layer (601). Multiple corona wires (603) are located in the mounting slot (17) and the corona wires (603) are installed in the mounting areas. The switching structure (7) is used to switch the use of two sets of adsorption filter structures (6). The switching structure (7) includes a multi-stage hydraulic cylinder (701) and a control board (702). The control board (702) is installed in the mounting groove (17). The multi-stage hydraulic cylinder (701) is fixedly installed on one side of the filter shell (4). The control board (702) is installed at the output end of the multi-stage hydraulic cylinder (701). The linkage de-ashing structure (8) is used to remove and collect the fly ash attached to the adsorption filter structure (6) when switching the adsorption filter structure (6). The adsorption filter structure (6) located in the installation groove (17) has a ash discharge port (18) at the bottom front side.

2. The waste incineration fly ash filtration and collection treatment device as described in claim 1, characterized in that, The linkage de-ashing structure (8) is located on both sides of the top of the filter shell (4). The linkage de-ashing structure (8) includes a contact plate (801), a liquid storage tank (802), an installation cylinder (803), a connecting pipe (804), a control rod (805), and a scraper plate (806). The liquid storage tank (802) is installed on the top of the filter shell (4). A through groove is provided between the liquid storage tank (802) and the air inlet groove (15). The top of the contact plate (801) passes through the through groove and is set inside the liquid storage tank (802). A sealing plate is installed on the top of the contact plate (801). The mounting cylinder (803) is fixedly installed on the top of the filter shell (4) and is located above the mounting groove (17). The scraper (806) is attached to the top front side of the filter layer (601). A through hole is provided between the mounting groove (17) and the top of the filter shell (4). The control rod (805) is installed on the top of the scraper (806) and the top of the control rod (805) passes through the through hole and is set in the mounting cylinder (803). A sealing plate is installed on the top of the control rod (805) and the sealing plate is fixed in the mounting cylinder (803).

3. The waste incineration fly ash filtration and collection treatment device as described in claim 2, characterized in that, The reservoir (802) is filled with a conductive medium, which is hydraulic oil or water.

4. The waste incineration fly ash filtration and collection treatment device as described in claim 3, characterized in that, The linkage de-ashing structure (8) also includes a limiting spring (807), which is sleeved on the outside of the control rod (805) and located between the sealing plate and the inner wall of the mounting cylinder (803).

5. The waste incineration fly ash filtration and collection treatment device as described in claim 4, characterized in that, The bottom of the contact plate (801) is a sloping surface that gradually narrows from the edge of the fly ash processor (3) toward the center, and the top two sides of the control plate (702) are provided with contact arc surfaces.

6. The waste incineration fly ash filtration and collection treatment device as described in claim 5, characterized in that, The scraper (806) has multiple slots (9) on its rear side, and the corona wire (603) is inserted into the slots (9).

7. The waste incineration fly ash filtration and collection treatment device as described in claim 6, characterized in that, The bottom of the scraper blade (806) is fitted with a baffle (10) via a connecting rod, and the baffle (10) is engaged in the ash discharge port (18).

8. The waste incineration fly ash filtration and collection treatment device as described in claim 7, characterized in that, A dust collection chamber (11) is provided between the dust discharge port (18) and the bottom of the filter shell (4). A dust collection shell (12) communicating with the dust collection chamber (11) is installed at the bottom of the filter shell (4). A dust discharge pipe (13) is installed at the bottom of the dust collection shell (12).

9. The waste incineration fly ash filtration and collection treatment device as described in claim 1, characterized in that, A connecting pipe (14) is installed on the mounting cover (5), and the connecting pipe (14) is located outside the air inlet (16).

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