AQC waste heat boiler with dust removal mechanism

Abstract

The AQC waste heat boiler with the dust removal mechanism comprises a base, the top of the base is connected with a dust removal box, the top of the dust removal box is internally connected with a waste gas box, the bottom of the waste gas box is communicated with a plurality of filter cartridges, partition plates are connected to the bottom of the waste gas box and located on the two sides of the filter cartridges, and dust removal assemblies are arranged at the tops of the partition plates. An electric cylinder pushes a hollow brush ring to move, a brush on the inner side face of the hollow brush ring makes close contact with a filter cartridge, dust on the surface of the filter cartridge is brushed off in the moving process, meanwhile, high-pressure gas generated by an air pump is conveyed to the hollow brush ring through a hose, the filter cartridge is blown through annularly-arranged nozzles, and dust can be further removed; the dust removal device has the advantages that dust is prevented from being adsorbed again or blocking the filter cartridge, the overall dust removal effect can be enhanced, it is ensured that the dust content of waste gas entering the boiler is greatly reduced, the dust removal efficiency of the filter cartridge is remarkably improved through the advantages of dust brushing and gas injection, and the air permeability of the filter cartridge is kept stable.

Description

Technical Field

[0001] This utility model belongs to the field of AQC waste heat boiler technology, specifically relating to an AQC waste heat boiler with a dust removal mechanism. Background Technology

[0002] AQC waste heat boilers, as the name suggests, are boilers that utilize the waste heat from waste gas, waste materials, or waste liquids in various industrial processes, as well as the heat generated from the combustion of combustible substances, to heat water to a certain temperature. Through its own heating surface structure, the AQC waste heat boiler allows waste gas to exchange heat with water or steam. The heat from the waste gas is transferred to the working fluid inside the boiler, causing it to evaporate and produce steam. However, the waste heat in industrial waste gas, waste materials, or waste liquids contains a large amount of toxic gases, which accumulate over time to form a large amount of dust. Therefore, the waste gas needs to be filtered and cleaned by a cyclone dust collector before it can be used.

[0003] In existing AQC waste heat boiler dust collectors, after the exhaust gas is filtered through the filter screen, dust in the exhaust gas adheres to the surface of the filter screen, causing accumulation and affecting the filtration and dust removal effect. The existing dust cleaning methods mostly involve blowing gas through nozzles to remove dust from the filter screen. While this method can remove some dust to a certain extent, it has obvious limitations. Because it relies solely on the force of the blowing, it is difficult to completely remove some sticky dust or dust that has adhered tightly to the filter screen due to long-term adsorption. Over time, the unremoved dust will gradually accumulate on the filter screen, causing the pores of the filter screen to become blocked, reducing its air permeability, and thus increasing the resistance of exhaust gas passing through the filter screen. Utility Model Content

[0004] The purpose of this invention is to provide an AQC waste heat boiler with a dust removal mechanism to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an AQC waste heat boiler with a dust removal mechanism, comprising:

[0006] The base has a dust collection box connected to its top, and an exhaust gas box connected to the top of the dust collection box. The bottom of the exhaust gas box is connected to several filter cylinders for filtering the waste heat exhaust gas entering the boiler. The bottom of the exhaust gas box and both sides of the filter cylinders are connected to partitions. The top of the partitions is equipped with a dust removal component for removing dust accumulated on the surface of the filter cylinders after filtration. The hollow brush ring is moved by the electric cylinder of the dust removal component, so that when the hollow brush ring moves, it blows dust off the surface of the filter cylinders through the brush and nozzles on its surface.

[0007] Preferably, the dust removal component includes a heat insulation box, which has several sets and is connected to the surface of the partition plate. The electric cylinder is located inside the heat insulation box and an air pump is located at the bottom of the electric cylinder.

[0008] Preferably, the piston rod of the electric cylinder passes through the heat insulation box and is connected to the hollow brush ring, and the hollow brush ring is fitted onto the surface of the filter cylinder. One end of the hollow brush ring is slidably connected to the slide groove on the surface of the partition plate through a slider.

[0009] Preferably, the brush is located on the inner side of the hollow brush ring and the brush is in contact with the filter cylinder.

[0010] Preferably, the air outlet of the air pump is connected to the hollow brush ring via a hose, and the air inlet of the air pump extends to the outside of the dust collection box via a pipe. The nozzles are provided in several groups and are connected to the bottom of the hollow brush ring in a ring.

[0011] Preferably, an air inlet pipe is connected to the surface of the dust collector and to the side of the exhaust gas box, and an exhaust pipe is connected to the bottom side of the dust collector.

[0012] Preferably, a flushing pipe is connected to one side of the bottom of the dust collector, and a drain pipe is connected to the center of the bottom of the dust collector.

[0013] Preferably, the base is rotatably connected to a caster wheel.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) By setting a special dust removal mechanism on the surface of the filter cartridge, the hollow brush ring is moved by the electric cylinder. The brush on the inner side of the hollow brush ring is in close contact with the filter cartridge. During the movement, it can move up and down mechanically and brush off the dust accumulated on the surface of the filter cartridge due to the filtration of exhaust gas. At the same time, the high-pressure gas generated by the air pump is delivered to the hollow brush ring through the hose and blown onto the filter cartridge through the nozzles arranged in a ring. This blowing action not only helps to further remove the dust that is brushed off but still remains, so that it is removed from the surface of the filter cartridge and prevents the dust from being re-adsorbed or clogging the filter cartridge, but also enhances the overall dust removal effect, ensuring that the dust content of the exhaust gas entering the boiler is greatly reduced. Moreover, through the advantages of brushing and gas blowing, the dust removal efficiency of the filter cartridge is significantly improved, so that the air permeability of the filter cartridge remains stable.

[0016] (2) Flushing water is injected into the dust collector through the flushing pipe connected to the bottom of the dust collector. The flushing water forms a water flow in the dust collector, which washes the dust accumulated at the bottom to the vicinity of the drain pipe. The drain pipe can smoothly discharge the dust and sewage from the dust collector. In this way, the dust in the dust collector is effectively cleaned, which prepares for the next round of dust removal work and ensures the continuous and efficient operation of the entire dust removal system. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the structure of the brush of this utility model when it comes into contact with the filter cylinder;

[0019] Figure 3 This is a bottom view of the filter cartridge of this utility model;

[0020] Figure 4 This is a schematic diagram of the connection between the piston rod and the hollow brush ring of the electric cylinder of this utility model.

[0021] In the diagram: 1. Base; 2. Dust collection box; 3. Exhaust gas box; 4. Filter cartridge; 5. Baffle; 6. Electric cylinder; 7. Hollow brush ring; 8. Brush; 9. Nozzle; 10. Heat insulation box; 11. Air pump; 12. Slider; 13. Slide; 14. Hose; 15. Inlet pipe; 16. Exhaust pipe; 17. Flushing pipe; 18. Sewage pipe; 19. Casters. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides, for example Figure 1-4 The AQC waste heat boiler shown includes a dust removal mechanism, comprising:

[0024] The base 1 has a dust collection box 2 connected to its top, and an exhaust gas box 3 connected to the top of the dust collection box 2. The bottom of the exhaust gas box 3 is connected to several filter cylinders 4 for filtering the waste heat exhaust gas entering the boiler. The bottom of the exhaust gas box 3 and both sides of the filter cylinders 4 are connected to partitions 5. The top of the partitions 5 is equipped with a dust removal component for removing the dust accumulated on the surface of the filter cylinders 4 after filtration. The hollow brush ring 7 is moved by the electric cylinder 6 of the dust removal component, so that when the hollow brush ring 7 moves, it blows and brushes the dust off the surface of the filter cylinders 4 through the brushes 8 and nozzles 9.

[0025] The dust removal assembly includes a heat insulation box 10, which has several sets and is connected to the surface of the partition plate 5. The electric cylinder 6 is located inside the heat insulation box 10 and an air pump 11 is located at the bottom of the electric cylinder 6. The heat insulation box 10 is made of rock wool, which has a good heat insulation effect and can provide heat insulation protection for the electric cylinder 6 and the air pump 11, preventing them from being affected by the high temperature of the exhaust gas.

[0026] The piston rod of the electric cylinder 6 passes through the heat insulation box 10 and is connected to the hollow brush ring 7, which is fitted onto the surface of the filter cylinder 4. One end of the hollow brush ring 7 is slidably connected to the slide groove 13 on the surface of the partition plate 5 through the slider 12. When the electric cylinder 6 pushes the hollow brush ring 7 to move, the sliding of the slider 12 in the slide groove 13 plays a precise guiding role, ensuring that the hollow brush ring 7 can move in a straight line stably along the axial direction of the filter cylinder 4, and avoiding the hollow brush ring 7 from deviating or shaking during the movement.

[0027] The brush 8 is located on the inner side of the hollow brush ring 7 and is in contact with the filter cylinder 4. The brush 8 is made of polyester fiber, which is relatively soft and can gently brush off the dust on the filter cylinder 4, avoiding damage to the filter cylinder 4.

[0028] The air outlet of the air pump 11 is connected to the hollow brush ring 7 via a hose 14, and the air inlet of the air pump 11 extends to the outside of the dust collection box 2 via a pipe. The nozzle 9 is provided with several sets and the several sets are connected to the bottom of the hollow brush ring 7 in a ring. The hose 14 is made of fluororubber, which can withstand high temperatures, and the hose 14 is reserved with sufficient length so that it can move with the hollow brush ring 7.

[0029] An air inlet pipe 15 is connected to the surface of the dust collector 2 and to one side of the exhaust gas box 3. An exhaust pipe 16 is connected to the bottom side of the dust collector 2. The exhaust pipe 16 is connected to the AQC waste heat boiler. The filtered and dust-removed gas can enter the AQC waste heat boiler through the exhaust pipe 16 to realize the utilization of the waste heat in the exhaust gas.

[0030] A flushing pipe 17 is connected to one side of the bottom of the dust collector 2, and a drain pipe 18 is connected to the center of the bottom of the dust collector 2. The flushing pipe 17 can inject flushing water into the dust collector 2 to flush the cleaned dust, and the wastewater after flushing can be discharged through the drain pipe 18.

[0031] The base 1 is rotatably connected to casters 19 at its bottom. During routine maintenance and repair, the casters 19 make it easy to move the dust collection box 2 without the need for large handling equipment or a lot of manpower.

[0032] The AQC waste heat boiler with a dust removal mechanism first introduces waste gas generated during industrial production into the waste gas box 3 inside the dust removal box 2 through the air inlet pipe 15 on the side of the dust removal box 2. The waste gas then enters multiple sets of filter cartridges 4 through the waste gas box 3. The filter cartridges 4 are made of materials with specific pore size and filtration performance. Their structural design can effectively intercept dust particles in the waste gas. When the waste gas passes through the filter cartridges 4, larger dust particles are trapped on the outer surface of the filter cartridges 4 due to inertia and the blocking effect of the filter medium, thus initially purifying the waste gas. The purified waste gas then continues to flow to the bottom of the dust removal box 2 and enters the AQC waste heat boiler connected to it through the exhaust pipe 16, realizing the utilization of the waste heat in the waste gas.

[0033] After a period of filtration, a certain amount of dust accumulates on the surface of the filter cartridge 4. The dust collection box 2 stops working and starts the dust collection components for cleaning. The air pump 11 starts working first. It draws in air from the environment outside the dust collection box 2 and compresses it. The compressed air is delivered to the hollow brush ring 7 through the hose 14. When the high-pressure gas inside the hollow brush ring 7 reaches the nozzle 9, it is ejected in the form of a high-speed airflow and rushes towards the surface of the filter cartridge 4. Through these high-speed airflows, some loose dust on the surface of the filter cartridge 4 can be blown away from the surface and fall to the bottom of the dust collection box 2 under the action of gravity and airflow.

[0034] While the nozzle 9 blows, the electric cylinder 6 starts and pushes the piston rod outward. The piston rod is connected to the hollow brush ring 7, which drives the hollow brush ring 7 to move up and down mechanically on the surface of the filter cylinder 4. The inner side of the hollow brush ring 7 is equipped with a brush 8. The material of the brush 8 has good flexibility. During the movement of the hollow brush ring 7, the brush 8 always maintains close contact with the surface of the filter cylinder 4. It uses its mechanical friction to brush off the dust that has not been removed by the blowing airflow due to stickiness or long-term adsorption. This synergistic effect of blowing and brushing ensures that the dust on the surface of the filter cylinder 4 can be thoroughly cleaned, effectively preventing the re-accumulation and clogging of dust.

[0035] After the blowing and brushing operations, the removed dust falls to the bottom of the dust collection box 2 under gravity. As the dust continues to accumulate, it needs to be cleaned regularly to keep the inside of the dust collection box 2 clean. At this time, the dust collection box 2 and the dust collection components can be stopped from working. Then, flushing water can be injected into the dust collection box 2 through the flushing pipe 17 connected to the bottom of the dust collection box 2. The flushing water forms a water flow in the box, which washes the dust accumulated at the bottom to the vicinity of the drain pipe 18. The dust and sewage are then smoothly discharged from the dust collection box 2 through the drain pipe 18, which effectively cleans the dust inside the dust collection box 2 and prepares it for the next round of dust collection work, ensuring the continuous and efficient operation of the entire dust collection system.

[0036] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An AQC heat recovery boiler having a dust removal mechanism, characterized by, Include: Base (1), the base (1) top is connected with dust removal box (2) and dust removal box (2) top is connected with waste gas box (3) in, the waste gas box (3) bottom is connected with several pairs of filter cylinder (4) that waste heat waste gas in the boiler is filtered, the waste gas box (3) bottom and located filter cylinder (4) both sides are connected with the baffle (5), the baffle (5) top is equipped with dust removal assembly for dust removal to the dust accumulated on the surface of filter cylinder (4), the hollow brush ring (7) is moved by the electric cylinder (6) of dust removal assembly to make the hollow brush ring (7) move by the surface brush (8) and nozzle (9) on the surface of filter cylinder (4) is blown and brushed dust.

2. The AQC heat recovery boiler with dust removal mechanism according to claim 1, characterized in that: The dust removal assembly includes heat insulation box (10), the heat insulation box (10) is equipped with several groups and is connected to the surface of baffle (5), the electric cylinder (6) is arranged in heat insulation box (10) and is provided with air pump (11) at the bottom of electric cylinder (6).

3. The AQC heat recovery boiler with dust removal mechanism according to claim 2, characterized in that: The piston rod of the electric cylinder (6) is connected with the hollow brush ring (7) after penetrating the heat insulation box (10) and the hollow brush ring (7) is sleeved on the surface of filter cylinder (4), one end of the hollow brush ring (7) is connected with the sliding groove (13) on the surface of baffle (5) through the sliding block (12).

4. The AQC heat recovery boiler with dust removal mechanism according to claim 1, characterized in that: The brush (8) is arranged on the inner side of the hollow brush ring (7) and the brush (8) is in contact with the filter cylinder (4).

5. The AQC heat recovery boiler with dust removal mechanism according to claim 2, characterized in that: The air outlet end of the air pump (11) is connected with the hollow brush ring (7) through the hose (14), and the air inlet end of the air pump (11) extends to the outside of the dust removal box (2) through the pipeline, the nozzle (9) is provided with several groups and several groups are connected to the bottom of the hollow brush ring (7) in the form of ring.

6. The AQC heat recovery boiler with dust removal mechanism according to claim 1, characterized in that: The surface of the dust removal box (2) and one side of the waste gas box (3) are connected with the air inlet pipe (15), and one side of the bottom of the dust removal box (2) is connected with the exhaust pipe (16).

7. The AQC heat recovery boiler with dust removal mechanism according to claim 1, characterized in that: The bottom of the dust removal box (2) is connected with the flushing pipe (17), and the center of the bottom of the dust removal box (2) is connected with the blowdown pipe (18).

8. The AQC heat recovery boiler with dust removal mechanism according to claim 1, characterized in that: The base (1) is rotatably connected with universal wheel (19).

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