Boiler flue gas dust removal system
By designing a boiler flue gas dust removal system, using scrapers, brushes, and high-pressure gas cleaning devices, the problems of direct emission of boiler flue gas and filter clogging are solved, and automatic cleaning of the filter is achieved, reducing air pollution and filter ash accumulation.
Patent Information
- Application Number
- CN202423217621.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2034-12-26
AI Technical Summary
The direct emission of flue gas from existing boilers causes air pollution, and the filters are prone to clogging, affecting normal use.
Design a boiler flue gas dust removal system, including a filter box, filter screen, scraper, brush and high-pressure gas cleaning device. The scraper removes dust, the brush cleans blockages, and the high-pressure gas impacts the filter screen to achieve automatic cleaning.
It effectively prevents excessive dust accumulation on the filter, ensures normal filtration function, reduces air pollution, and improves the living environment.
Smart Images
Figure CN223602203U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of flue gas dust removal, and particularly relates to a boiler flue gas dust removal system. BACKGROUND
[0002] The dust generated by the combustion of fuel and other substances and the dust generated by the mechanical processes such as crushing, screening and conveying of solid materials is separated from the dust and collected and recovered, the existing flue gas generated during the combustion of a boiler is directly discharged, the flue gas contains a large amount of dust, carbon and sulfide, and causes great pollution to the air, and the boiler is generally used in a residential area, so a large amount of dust seriously affects the living environment of residents, and it is necessary to design a dust removal device that can purify the dust, carbon and sulfide in the flue gas.
[0003] The existing dust removal method is to filter by using a filter screen, and during the filtering of the filter screen, too much dust is accumulated on the filter screen, which may cause the filter screen to be blocked over a long period of time, thereby affecting the normal filtering. CONTENT OF THE UTILITY MODEL
[0004] The utility model provides a boiler flue gas dust removal system to solve the defects in the prior art.
[0005] The utility model is implemented by the following technical solutions:
[0006] A boiler flue gas dust removal system, comprising a filter box, the filter box is divided into a filtering area and a collecting area by a fixedly arranged partition plate in the filter box, the distance between the partition plate and the top surface of the filter box is 5cm, a filter screen is fixedly arranged in the filtering area, the upper part and the lower part of the filter screen are respectively communicated with an air inlet pipe and an air outlet pipe, the air inlet pipe is communicated with the air outlet of the boiler, the top surface of the filter screen and the top surface of the partition plate are located on the same horizontal surface, a moving plate is fixedly arranged in the filter box, a scraper is fixedly arranged on the bottom surface of the moving plate, the longitudinal width of the scraper is consistent with the width of the filter screen, the moving plate is horizontally moved by a driving device, and the lower part of the collecting area is communicated with a discharging pipe controlled by a valve.
[0007] During use, the boiler flue gas enters the air inlet pipe and then enters the filter box, wherein the flue gas is filtered by the filter screen, and the dust falls on the filter screen, and the filtered flue gas flows out through the air outlet pipe, wherein after a certain amount of dust is accumulated on the filter screen, the driving device is started, the driving device drives the moving plate to move, the moving plate drives the scraper to move horizontally, thereby scraping the dust on the filter screen and scraping it into the collecting area, then when no filtering work is performed, the valve on the discharging pipe is opened, so that the dust flows out through the discharging pipe, thereby cleaning the dust on the filter screen and avoiding too much dust on the filter screen from affecting normal use.
[0008] As preferred, the driving device retains a driving motor fixedly arranged in the filter box, a rotating shaft of the driving motor is coaxially fixedly connected with a screw rod, outer ends of the screw rod are rotatably connected with the inner wall of the filter box through bearings, a screw hole and a circular hole are formed in the moving block, the screw rod passes through the screw hole and is threadedly matched with the screw hole, a circular rod is matched and arranged in the circular hole, and the two ends of the circular rod are perpendicularly connected with the inner walls of the corresponding sides of the filter box.
[0009] As preferred, vertical rods are fixedly connected with the front and rear sides of the moving block downwards, a circular roller is arranged between the vertical rods, a brush is sleeved on the circular roller, bristles of the brush are inserted into the mesh opening of the filter screen, and the circular roller is rotatably connected with the vertical rods through a pin shaft.
[0010] As preferred, a longitudinal pipe is fixedly arranged at the lower part of the moving plate, the two ends of the longitudinal pipe are closed and a plurality of spray heads are communicated at the lower part, one end of the longitudinal pipe is communicated with an air inlet pipe, the other end of the air inlet pipe is communicated with an air outlet hole of an air pump fixedly arranged on the moving plate, one end of a spring pipe is communicated with an air inlet of the air pump, the other end of the spring pipe penetrates out of the filter box and is sealed at the penetrating position, and the length of the spring pipe in the filter box is greater than the transverse length of the filter box.
[0011] As preferred, the scraper, the brush and the longitudinal pipe are sequentially arranged from right to left. The mesh opening blocked by dust can be opened by the brush after being scraped, and the dust on the filter screen can be further removed by high-pressure gas impact.
[0012] As preferred, the lower part of the collecting area is communicated with a horn opening which is wide at the upper part and narrow at the lower part, and the small opening of the horn opening is communicated with the discharging pipe, so that the discharging can be smooth.
[0013] The application can realize the scraping first, the opening of the mesh opening blocked by dust by the brush, and the dust removal by high-pressure gas impact, so that the dust on the filter screen can be further removed, and the normal use of the filter screen can be ensured. BRIEF DESCRIPTION OF DRAWINGS
[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed to be used in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.
[0015] Figure 1 is a structural schematic view of the utility model;
[0016] Figure 2 is Figure 1 I partial enlarged view.
[0017] shown in the figure:
[0018] 1, filter box, 2, filter area, 3, collection area, 4, filter screen, 5, partition, 6, air inlet pipe, 7, air outlet pipe, 8, drive motor, 9, screw rod, 10, round rod, 11, moving plate, 12, scraper, 13, brush, 14, longitudinal pipe, 15, air pump, 16, spring pipe. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical scheme and advantages of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be described clearly and completely below with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor are within the scope of the utility model protection.
[0020] A kind of boiler flue gas dust removal system, as shown in Figure 1 And Figure 2 It includes filter box 1, filter box 1 is fixedly arranged in filter area 2 and collection area 3 by partition 5, the distance of partition 5 from filter box 1 top surface is 5 cm, filter screen 4 is fixedly arranged in filter area 2, the upper portion and lower portion of filter screen 4 are communicated with air inlet pipe 6 and air outlet pipe 7 respectively, air inlet pipe 6 is communicated with boiler air outlet, the top surface of filter screen 4 and the top surface of partition 5 are located on the same horizontal plane, moving plate 11 is fixedly arranged in filter box 1, scraper 12 is fixedly arranged on the bottom surface of moving plate 11, the longitudinal width of scraper 12 is consistent with the width of filter screen 4, moving plate 11 is moved horizontally by drive device, the lower portion of collection area 3 is communicated with the discharge pipe controlled by valve. The drive device retains drive motor 8 fixedly arranged in filter box 1, the rotating shaft of drive motor 8 is coaxially fixedly connected with screw rod 9, the outer end of screw rod 9 is rotatably connected with the inner wall of filter box 1 through bearing, the screw hole and the round hole are formed in the moving block, screw rod 9 passes through the screw hole and is screwed with the screw hole, round rod 10 is arranged in the round hole, and the two ends of round rod 10 are vertically connected with the corresponding side inner wall of filter box 1.
[0021] In use, the boiler flue gas enters the inlet pipe 6 and enters the filter box 1 through the inlet pipe 6, wherein the flue gas is filtered through the filter screen 4, and the dust falls on the filter screen 4, and the filtered flue gas flows out through the outlet pipe 7, wherein after a certain amount of dust accumulates on the filter screen 4, the driving device is started, the rotation of the driving motor 8 shaft of the driving device drives the rotation of the lead screw 9, and the rotation of the lead screw 9 drives the movement of the moving plate 11 according to the lead screw 9 transmission sliding table principle. The moving plate 11 drives the transverse movement of the scraper 12, thereby realizing the scraping of the dust on the filter screen 4 and scraping into the collection area 3, and then when no filtering operation is performed, the valve on the discharge pipe is opened, so that the dust flows out through the discharge pipe, thereby realizing the cleaning of the dust on the filter screen 4, and avoiding that the excessive dust on the filter screen 4 affects normal use.
[0022] The moving block is fixedly connected with vertical rods on the front and rear sides, and a circular roller is arranged between the vertical rods. A brush 13 is sleeved on the circular roller, the bristles of the brush 13 are inserted into the mesh opening of the filter screen 4, and the circular roller is rotationally connected with the vertical rods through a pin shaft. The movement of the moving plate 11 drives the movement of the brush 13. Since the bristles of the brush 13 are inserted into the mesh opening of the filter screen 4, the brush 13 will rotate when it moves. The bristles are continuously inserted into the mesh opening, further avoiding the mesh opening from being blocked.
[0023] The lower part of the moving plate 11 is fixedly provided with a longitudinal pipe 14, the longitudinal pipe 14 is closed at both ends and is communicated with a plurality of nozzles at the lower part, one end of the longitudinal pipe 14 is communicated with the inlet pipe 6, the other end of the inlet pipe 6 is communicated with the air outlet hole of the air pump 15 fixedly arranged on the moving plate 11, one end of the spring pipe 16 is communicated with the air inlet of the air pump 15, the other end of the spring pipe 16 penetrates out of the filter box 1 and is sealed at the penetration position, and the length of the spring pipe 16 in the filter box 1 is greater than the transverse length of the filter box 1. Under the action of the air pump 15, the gas from the outside enters the spring pipe 16, enters the air pump 15 through the spring pipe 16, and enters the longitudinal pipe 14 from the air pump 15, and is sprayed from the nozzles, thereby realizing the blowing of the filter screen 4 and further realizing the cleaning of the filter screen 4.
[0024] The scraper 12, the brush 13 and the longitudinal pipe 14 are arranged from right to left in sequence. The mesh opening blocked by the dust can be opened by the scraper first, then by the brush 13, and finally by the high-pressure gas impact, thereby further avoiding the dust accumulation on the filter screen 4.
[0025] The lower part of the collection area 3 is communicated with a horn opening which is wide at the top and narrow at the bottom, and the small opening of the horn opening is communicated with the discharge pipe, thereby ensuring smooth discharge.
[0026] In use, the mesh opening blocked by the dust can be opened by the scraper first, then by the brush 13, and finally by the high-pressure gas impact, thereby further avoiding the dust accumulation on the filter screen 4, and avoiding that the excessive dust on the filter screen 4 affects normal use.
[0027] It should be finally pointed out that: the above examples are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been explained in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement to part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model.
Claims
1. A system for dust removal from a boiler flue gas, characterized by: The filter box is provided with a partition plate fixedly arranged in the filter box, and the filter box is divided into a filtering area and a collecting area, the distance between the partition plate and the top surface of the filter box is 5 cm, a filter screen is fixedly arranged in the filtering area, the upper part and the lower part of the filter screen are communicated with a cylinder air inlet pipe and an air outlet pipe respectively, the air inlet pipe is communicated with the air outlet of the boiler, the top surface of the filter screen is located on the same horizontal surface as the top surface of the partition plate, a moving plate is fixedly arranged in the filter box, a scraper is fixedly arranged on the bottom surface of the moving plate, the longitudinal width of the scraper is consistent with the width of the filter screen, the moving plate is transversely moved by a driving device, and the lower part of the collecting area is communicated with a discharging pipe controlled by a valve.
2. The boiler flue gas dedusting system according to claim 1, characterized in that: The driving device is provided with a driving motor fixedly arranged in the filter box, a screw rod is coaxially and fixedly connected with the rotating shaft of the driving motor, a moving block is provided with a screw hole and a circular hole, the screw rod passes through the screw hole and is threadedly connected with the screw hole, a circular rod is arranged in the circular hole, and the two ends of the circular rod are vertically connected with the inner walls of the corresponding sides of the filter box.
3. The boiler flue gas dedusting system according to claim 2, characterized in that: The moving block is fixedly connected with vertical rods downward on the front and rear sides, a circular roller is arranged between the vertical rods, a brush is sleeved on the circular roller, the bristles of the brush are inserted into the mesh opening of the filter screen, and the circular roller and the vertical rods are rotationally connected through a pin shaft.
4. The boiler flue gas dedusting system according to claim 3, characterized in that: The lower part of the moving plate is fixedly provided with a longitudinal pipe, the two ends of the longitudinal pipe are closed, a plurality of spray heads are communicated with the lower part, one end of the longitudinal pipe is communicated with the air inlet pipe, the other end of the air inlet pipe is communicated with the air outlet hole of the air pump fixedly arranged on the moving plate, one end of the spring pipe is communicated with the air inlet of the air pump, the other end of the spring pipe penetrates out of the filter box and is sealed at the penetration position, and the length of the spring pipe in the filter box is greater than the horizontal length of the filter box.
5. The boiler flue gas dedusting system according to claim 4, characterized in that: The scraper, the brush and the longitudinal pipe are arranged from right to left in sequence.
6. The boiler flue gas dedusting system according to claim 1, characterized in that: The lower part of the collecting area is communicated with a horn with a wide upper part and a narrow lower part, and the small opening of the horn is communicated with the discharging pipe.