A wind cooling dust removal equipment for brick and tile firing

Abstract

The utility model relates to brick production environmental protection equipment technical field, and disclose a kind of air cooling dust removal equipment for brick firing, including pulse bag dust collector body and the frame for installing cloth bag being set in pulse bag dust collector body, still include: fixedly connected in the air inlet of pulse bag dust collector body for shielding dust baffle, the middle section of baffle is provided with arc protrusion;The utility model can make dust-containing airflow form stable disturbance airflow in extrusion zone by the gap design between arc protrusion and pulse bag dust collector body, promote partial dust to settle due to flow rate change, reduce the total amount of dust entering cloth bag, while guarantee airflow evenly enters cloth bag interior, provide basis for the distribution of airflow in cloth bag when subsequent pulse dust cleaning, auxiliary relief existing equipment compressed air airflow diffusion leads to cloth bag local vibration intensity weak defect, improve cloth bag overall dust cleaning effect.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection equipment technology for brick and tile production, specifically to a wind-cooled dust removal device for brick and tile firing. Background Technology

[0002] Currently, the mainstream dust removal method for brick and tile firing flue gas in the industry is the pulse jet bag filter. This equipment filters and traps dust in the flue gas through filter bags (usually made of high-temperature resistant needle-punched felt). Then, a pulse jet system injects compressed air into the filter bags, causing them to vibrate and shake off the dust adhering to the surface of the filter bags into the ash hopper, thus regenerating the filter bags and maintaining a continuous dust removal effect. To adapt to the high temperature characteristics of brick and tile flue gas (120-180℃), some equipment will add an air-cooling device at the front end of the dust collector. This device reduces the temperature of the flue gas by mixing and exchanging heat with the cold air, preventing the filter bags from aging and breaking due to high temperatures.

[0003] The existing pulse jet baghouse dust collectors mainly rely on pulse jet pipes to inject compressed air into the bag, causing the bag to expand and vibrate to remove dust. However, this method has certain problems: Firstly, the compressed air flow is diffused inside the bag, resulting in significant differences in vibration intensity in different areas of the bag's inner wall, especially in the middle and lower parts of the bag, where the vibration intensity is weak, making it easy for dust to remain and form a stubborn dust layer. Long-term accumulation will reduce the bag's filtration area. Secondly, for dust that has already formed a certain adhesion to the inner wall of the bag, simple bag expansion and vibration are difficult to effectively remove. Dust remains on the bag surface after cleaning, and as the operating time increases, the residual dust gradually hardens, further reducing the bag's air permeability. Therefore, we urgently need an air-cooled dust removal device for brick and tile firing to solve the above problems. Utility Model Content

[0004] This utility model provides an air-cooled dust removal device for brick and tile firing. The device uses baffles and arc-shaped protrusions to block large dust particles. Combined with pulsed airflow driving the push rod on the lever to beat the filter bag, it solves the problems mentioned in the background art, such as dust directly adhering to the filter bag, resulting in poor cleaning effect, dust residue forming a stubborn dust layer, and long-term accumulation leading to a reduction in the filter area of ​​the filter bag.

[0005] This utility model provides the following technical solution: A wind-cooled dust removal device for brick and tile firing includes a pulse jet bag filter body and a frame disposed within the pulse jet bag filter body for installing filter bags. It also includes: a baffle fixedly connected to the air inlet of the pulse jet bag filter body for blocking dust, the baffle having an arc-shaped protrusion in its middle section, the arc-shaped protrusion forming a compression zone with the inner wall of the pulse jet bag filter body; and a funnel fixedly installed at the frame port for guiding gas, the funnel having a cleaning part fixedly installed for cleaning the filter bags.

[0006] As a preferred technical solution of this utility model, the cleaning part includes U-shaped plates arranged equidistantly in a ring on the small diameter section of the funnel. A rotating lever is rotatably connected to the U-shaped plate. A push-out block is integrally formed on the side of the lever near the cloth bag. When the push-out block abuts against the cloth bag, a cleaning area is formed.

[0007] As a preferred technical solution of this utility model, the number of ejector blocks is at least five sets, and the multiple sets of ejector blocks are arranged at equal intervals along the length direction of the lever.

[0008] As a preferred embodiment of this utility model, the actuating rod extends with an inclined rod for providing power, and the end of the inclined rod is located below the funnel port. When the inclined rod is impacted by pulsed gas, it drives the actuating rod to rotate along the U-shaped plate axis.

[0009] As a preferred embodiment of this utility model, the funnel is provided with elastic blocks arranged in a ring at equal intervals. The elastic blocks are arranged corresponding to the actuating rod. One end of the elastic block is fixedly connected to the funnel, and the other end of the elastic block abuts against the actuating rod to form a rebound zone.

[0010] As a preferred technical solution of this utility model, the gap between the top point of the arc-shaped protrusion and the body of the pulse bag dust collector is 10cm-15cm.

[0011] Compared with the prior art, this utility model provides an air-cooled dust removal device for brick and tile firing, which has the following beneficial effects: 1. In this air-cooled dust removal equipment for brick and tile firing, the gap design between the arc-shaped protrusion and the pulse bag dust collector body allows the dust-laden airflow to form a stable turbulent airflow in the compression zone, causing some dust to settle due to changes in flow velocity, reducing the total amount of dust entering the bag, while ensuring that the airflow enters the bag evenly. This provides a basis for the distribution of airflow in the bag during subsequent pulse cleaning, helps to alleviate the defect of weak local vibration intensity of the bag caused by the diffusion of compressed air in existing equipment, and improves the overall cleaning effect of the bag.

[0012] 2. In this air-cooled dust removal equipment for brick and tile firing, the design of the tilting rod and elastic block achieves cyclic dust removal without additional power. The tilting rod uses the airflow of pulse jet as power to drive the actuating rod to rotate, eliminating the need for an additional motor or hydraulic device; after the pulse ends, the elastic block pushes the actuating rod to reset, causing the ejected block to form an impact-rebound repeated cleaning action, avoiding the defects of existing equipment where single vibration dust removal is incomplete and residual dust gradually caking, while reducing equipment energy consumption and failure rate.

[0013] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model solves the problems of dust residue in the lower part of the filter bag and the difficulty in peeling off the stubborn dust layer in existing equipment. It also avoids the defect of reduced air permeability of the filter bag due to long-term dust caking. While extending the service life of the filter bag, it ensures the stable and efficient operation of the dust removal equipment during the brick and tile firing process. Attached Figure Description

[0014] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, the elements or parts are not necessarily drawn to actual scale.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the actuating lever structure of this utility model; Figure 3 This is a schematic diagram of the funnel structure of this utility model; Figure 4 This is a partial cross-sectional view of the present invention.

[0016] In the diagram: 1. Pulse bag filter body; 2. Frame; 3. Baffle; 4. Arc-shaped protrusion; 5. Funnel; 6. U-shaped plate; 7. Actuating rod; 8. Top block; 9. Inclined rod; 10. Elastic block. Detailed Implementation

[0017] 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.

[0018] Example: Reference Figure 1 - Figure 4 A wind-cooled dust removal device for brick and tile firing includes a pulse bag dust collector body 1 and a frame 2 installed inside the pulse bag dust collector body 1 for installing filter bags.

[0019] Here, the pulse bag filter body 1 is a direct reference to the conventional technical solution, and will not be elaborated on further. In the prior art, the number of frames 2 in the pulse bag filter body 1 is mostly arranged in a rectangular array.

[0020] It also includes a baffle 3 fixedly connected to the air inlet of the pulse bag dust collector body 1 for blocking dust. The middle section of the baffle 3 is provided with an arc-shaped protrusion 4, and the arc-shaped protrusion 4 and the inner wall of the pulse bag dust collector body 1 form a squeezing area. The gap between the top point of the arc-shaped protrusion 4 and the pulse bag dust collector body 1 is 10cm-15cm.

[0021] Here, the baffle 3 directly blocks some large dust particles at the air inlet, preventing them from directly impacting the filter bag and reducing the initial filtration pressure of the filter bag; the squeezing zone formed by the arc-shaped protrusion 4 and the inner wall of the pulse bag dust collector body 1 can initially squeeze the dust-laden airflow, causing some dust to slow down and settle due to airflow disturbance, further reducing the amount of dust entering the filter bag, and solving the problem of heavy cleaning burden caused by dust directly adhering to the filter bag in existing equipment.

[0022] Furthermore, the distance between the top point of the arc-shaped protrusion 4 and the body 1 of the pulse bag dust collector is preferably 10cm. This ensures smooth airflow and enhances the airflow disturbance effect through compression, avoiding the problems of compression failure due to excessive gap and airflow blockage due to insufficient gap, thus achieving the dual effect of pretreatment and efficient air intake.

[0023] A funnel 5 is fixedly installed at the port of frame 2 for guiding gas. A cleaning part for cleaning the filter bag is fixedly installed on the funnel 5. The cleaning part includes U-shaped plates 6 arranged in a ring at equal intervals in the small diameter section of the funnel 5. A rotating lever 7 is rotatably connected to the U-shaped plates 6. An ejector block 8 is integrally formed on the side of the lever 7 near the filter bag. When the ejector block 8 abuts against the filter bag, a cleaning area is formed. There are at least five sets of ejector blocks 8. Multiple sets of ejector blocks 8 are arranged at equal intervals along the length of the lever 7.

[0024] Here, the funnel 5 can guide the airflow entering the frame 2 to the middle area of ​​the filter bag, avoiding the "weak local airflow" problem caused by the airflow diffusion of existing equipment; at the same time, the funnel 5 provides an installation carrier for the cleaning section, so that the airflow guidance and active dust removal action are synchronized, improving the overall coordination of the equipment.

[0025] Furthermore, multiple sets of ejector blocks 8 are equidistantly arranged along the actuating rod 7, which can directly act on the middle and lower part of the bag. When the ejector blocks 8 come into contact with the bag, they can form local compression vibration, which can compensate for the difference in vibration intensity caused by the diffusion of compressed air and completely solve the problem of dust residue in the middle and lower part of the bag. The physical compression of the ejector blocks 8 can directly act on the dust layer that has formed adhesion. Compared with the simple expansion vibration of the bag, it can more effectively destroy the adhesion between the dust and the bag, avoid the dust caking phenomenon, and ensure the long-term air permeability of the bag.

[0026] An inclined rod 9 for providing power extends from the lever 7, and the end of the inclined rod 9 is located below the port of the funnel 5. When the inclined rod 9 is impacted by pulsed gas, it drives the lever 7 to rotate along the axis of the U-shaped plate 6.

[0027] Here, the tilting rod 9 utilizes pulsed gas impact for power, eliminating the need for additional motors or hydraulic devices, thus reducing equipment energy consumption and failure rate. Furthermore, the end of the tilting rod 9 is located below the port of the funnel 5, allowing it to directly capture the pulsed airflow and achieve synchronized action of pulse jet blowing, rotation of the toggle rod 7, and cleaning of the ejector block 8, improving the timeliness and efficiency of dust removal. Elastic blocks 10 are arranged in a ring at equal intervals on the funnel 5. The elastic blocks 10 are arranged corresponding to the actuating rod 7. One end of the elastic block 10 is fixedly connected to the funnel 5, and the other end of the elastic block 10 forms a rebound zone by abutting against the actuating rod 7.

[0028] Here, the rebound zone formed by the elastic block 10 and the actuating rod 7 can push the actuating rod 7 to reset after the pulse airflow disappears, so that the ejector block 8 contacts the bag again to form a secondary cleaning. Through the repeated action of impact-rebound-re-impact, stubborn dust is effectively removed, solving the problem of incomplete cleaning by single vibration in existing equipment.

[0029] In this invention, when the dust-laden airflow enters the pulse bag filter body 1, the baffle 3 blocks large dust particles, and the arc-shaped protrusion 4 and the squeezing area between the arc-shaped protrusion 4 and the inner wall of the pulse bag filter body 1 cause some dust to settle. The airflow is guided into the filter bag through the funnel 5. During pulse jet cleaning, the compressed air expands the filter bag on the one hand, and impacts the tilting rod 9 on the other hand, driving the actuating rod 7 to rotate. The ejector block 8 squeezes the filter bag to clean the dust. After the pulse ends, the elastic block 10 pushes the actuating rod 7 to reset, and the ejector block 8 cleans the filter bag a second time, ultimately achieving efficient dust removal.

[0030] Components not described in detail in this article are existing technologies.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A wind-cooled dust removal device for brick and tile firing, comprising a pulse jet bag filter body (1) and a frame (2) disposed within the pulse jet bag filter body (1) for installing filter bags, characterized in that, Also includes: A baffle (3) is fixedly connected to the air inlet of the pulse bag dust collector body (1) to block dust. The middle section of the baffle (3) is provided with an arc-shaped protrusion (4), and the arc-shaped protrusion (4) forms a squeezing area with the inner wall of the pulse bag dust collector body (1). A funnel (5) for guiding gas is fixedly installed at the port of the frame (2), and a cleaning part for cleaning the cloth bag is fixedly installed on the funnel (5).

2. The air-cooled dust removal equipment for brick and tile firing according to claim 1, characterized in that, The cleaning section includes U-shaped plates (6) arranged in a ring at equal intervals in the small diameter section of the funnel (5). A rotating lever (7) is rotatably connected to the U-shaped plate (6). A push-out block (8) is integrally formed on the side of the lever (7) near the cloth bag. When the push-out block (8) abuts against the cloth bag, a cleaning area is formed.

3. The air-cooled dust removal equipment for brick and tile firing according to claim 2, characterized in that, The number of the ejector blocks (8) is at least five sets, and the multiple sets of ejector blocks (8) are arranged at equal intervals along the length direction of the lever (7).

4. The air-cooled dust removal equipment for brick and tile firing according to claim 2, characterized in that, The lever (7) has an extension of a tilting rod (9) for providing power, and the end of the tilting rod (9) is located below the port of the funnel (5). When the tilting rod (9) is impacted by the pulsed gas, it drives the lever (7) to rotate along the axis of the U-shaped plate (6).

5. The air-cooled dust removal equipment for brick and tile firing according to claim 1, characterized in that, The funnel (5) is provided with elastic blocks (10) arranged in a ring at equal intervals. The elastic blocks (10) are arranged corresponding to the actuating rod (7). One end of the elastic block (10) is fixedly connected to the funnel (5), and the other end of the elastic block (10) forms a rebound zone with the actuating rod (7).

6. The air-cooled dust removal equipment for brick and tile firing according to claim 1, characterized in that, The gap between the top point of the arc-shaped protrusion (4) and the body (1) of the pulse bag dust collector is 10cm-15cm.

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