A dust removal device for sintering flux

Abstract

The application discloses a dust removal device for sintering flux, relates to the technical field of sintering flux production, and comprises an outer pipe, a filtering assembly, a dust raising mechanism and a dust scraping mechanism. The dust raising mechanism is installed at the lower part of the filtering assembly and can drive the filtering assembly to rotate by means of the airflow blown by the air inlet pipe arranged at the lower part of the filtering assembly. The dust scraping mechanism is rotatably installed in the air outlet pipe of the side surface of the outer pipe. The filtering assembly can drive the dust scraping mechanism to rotate along the axis of the air outlet pipe by means of the driving of the poking block while rotating. The filtering assembly in the single body is adopted to realize the centralized recovery of dust without affecting the normal discharge of sintering flux particles, effectively avoid the dust raising phenomenon at the discharge port of the screening machine, and quickly clean the dust attached to the inner wall of the filter cartridge by means of the centrifugal force generated by the rotation of the dust raising mechanism and the back blowing effect of the airflow inputted inwards without disassembling the machine, so that the filtering effect of the filtering assembly is ensured.

Description

Technical Field

[0001] This invention relates to the field of sintering flux production technology, and more specifically to a dust removal device for sintering flux. Background Technology

[0002] The production process of sintered flux generally includes raw material mixing, granulation, drying, and screening. Among these processes, particles that meet the particle size requirements are transferred to high-temperature calcination to form a relatively hard sintered flux.

[0003] Sintered flux can be screened using a drum screen. However, in practice, the dust generated during drum screening easily escapes from the discharge port, causing severe dust pollution in the production workshop. Furthermore, some of the escaped dust cannot be recycled, increasing production costs. Previously, our company used an inner pipe consisting of a mesh tube and a perforated corrugated pipe at the discharge port of the screen for dust removal and collection (Patent publication number CN217165739U, Dust Recovery Device for Sintered Flux Production). However, this method also has drawbacks. For example, the inner walls of the inner pipe and the gas delivery pipe are prone to blockage, requiring disassembly and cleaning, which restricts production efficiency. In addition, some uncollected dust accumulates between the inner and outer pipes, making subsequent cleaning difficult. Summary of the Invention

[0004] The purpose of this invention is to provide a dust removal device for sintering flux, so as to solve the problems existing in the prior art as mentioned in the background section.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A dust removal device for sintering flux includes an outer tube, a filter assembly, a dust-raising mechanism, and a dust-scraping mechanism. The upper and lower ends of the filter assembly are mounted inside the outer tube by means of one-way bearings so that the filter assembly can only rotate in one direction. The outer tube and the filter assembly form a sandwich for collecting dust. The dust-raising mechanism is installed at the lower part of the filter assembly and can drive the filter assembly to rotate by means of airflow blown out by an air inlet pipe provided at the lower part of the filter assembly. An air outlet pipe is installed on the upper side of the outer tube. The dust-scraping mechanism is rotatably installed inside the air outlet pipe. A toggle block is installed on the upper part of the filter assembly so that while the filter assembly is rotating, the dust-scraping mechanism can be driven to rotate along the axis of the air outlet pipe by means of the toggle block.

[0007] Furthermore, the filter assembly includes annular components, support ribs, and a filter cartridge. The support ribs and the filter cartridge are both installed between two annular components, and the support ribs are fixed to the outside of the filter cartridge. The support ribs can improve the strength and rigidity of the entire filter assembly, while the filter cartridge is used to remove dust and collect dust from the sintered flux at the discharge port of the screening machine.

[0008] Furthermore, the upper and lower parts of the inner wall of the outer tube are provided with inner steps for installation on the filter assembly. A bearing seat is installed on the side of the inner step facing the end of the outer tube. The one-way bearing is installed in the bearing seat and a sealing ring is installed on both the upper and lower end faces of the one-way bearing. The function of the sealing ring is to improve the sealing performance of the one-way bearing and prevent dust from falling into the one-way bearing and affecting its normal use.

[0009] Furthermore, the dust-raising mechanism includes an outer ring body and fan blades. The outer ring body is interference-fitted to the outer periphery of the filter assembly, and a number of fan blades are arranged at equal angles on the outer periphery of the outer ring body. The air intake direction of the air inlet pipe blows towards the fan blades. The main purpose of the dust-raising mechanism is to realize the rotation of the filter assembly and assist in raising the dust accumulated between the filter assembly and the outer pipe so that it can be sucked away and discharged by a bag filter.

[0010] Furthermore, the dust scraping mechanism includes a support frame, scraper strips, a central shaft, and a lever. There are two support frames arranged side by side on the inner wall of the air outlet pipe. There are at least three scraper strips fixedly connected between the two support frames. The central shaft is also fixed between the two support frames. The lever is connected to the support frame near the filter assembly via a connecting shaft. The lever can rotate, thereby driving the dust scraping mechanism to rotate inside the air outlet pipe to scrape off the dust adhering to the inner wall of the air outlet pipe.

[0011] Furthermore, a flange is installed at the end of the outer tube, which is connected to the discharge port of the screening machine and the receiving device by means of the flange.

[0012] Furthermore, several positioning blocks for positioning the support frame are provided on the inner wall of the air outlet pipe near the filter assembly. The outer end of the air outlet pipe is also connected to a flange and connected to the bag filter through the flange. The support frame near the bag filter abuts against the outer side of the bag filter after installation.

[0013] Furthermore, the end of the lever facing the filter assembly is provided with an inclined air guide surface.

[0014] Furthermore, the filter assembly is made of metal.

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

[0016] 1. This invention improves upon existing technology by using a single filter component to achieve centralized dust collection without affecting the normal discharge of sintered flux particles. This effectively avoids dust generation at the discharge port of the screening machine. Furthermore, without disassembling the machine, the dust adhering to the inner wall of the filter cartridge can be quickly cleaned by the centrifugal force generated by the rotation of the dust-generating mechanism and the back-blowing effect generated by the inward airflow, thus ensuring the filtration effect of the filter component.

[0017] 2. In this invention, while the dust-raising mechanism is rotating, the generated airflow will also lift the dust in the interlayer, so that it can be sucked away and discharged by the bag filter. At the same time as the filter component is rotating, the actuating block can also drive the actuating blade and the dust scraping mechanism to rotate in the air outlet pipe to scrape off the dust attached to the inner wall of the air outlet pipe, thus ensuring the dust removal efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram illustrating the operation of the present invention.

[0019] Figure 2 This is a top view of the present invention.

[0020] Figure 3 for Figure 2 A cross-sectional view along the AA direction.

[0021] Figure 4 for Figure 3 A cross-sectional view along the BB direction.

[0022] Figure 5 for Figure 3 Detailed view of a section at point C.

[0023] Figure 6 This is a schematic diagram of the ash scraping mechanism.

[0024] The components are: 1. Outer tube, 2. Filter assembly, 20. Ring part, 21. Support rib, 22. Filter cartridge, 3. Dust collection mechanism, 30. Outer ring body, 31. Fan blade, 4. Dust scraping mechanism, 40. Support frame, 41. Scraper, 42. Central shaft, 43. Paddle, 44. Connecting shaft, 5. One-way bearing, 6. Inner step, 7. Bearing seat, 8. Sealing ring, 9. Exhaust pipe, 10. Inlet pipe, 11. Paddle block, 12. Bag filter. Detailed Implementation

[0025] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0026] Please see Figure 1-6 The present invention provides a technical solution, specifically as follows:

[0027] A dust removal device for sintering flux includes an outer tube 1, a filter assembly 2, a dust-raising mechanism 3, and a dust-scraping mechanism 4. The upper and lower ends of the filter assembly 2 are installed inside the outer tube 1 by means of one-way bearings 5 ​​so that the filter assembly 2 (made of metal material) can only rotate in one direction. The end of the outer tube 1 is equipped with a flange, which is connected to the discharge port of the screening machine and the receiving device by means of the flange. The filter assembly 2 includes an annular part 20, a support rib 21, and a filter cylinder 22. The support rib 21 and the filter cylinder 22 are both installed between two annular parts 20, and the support rib 21 is fixed to the outside of the filter cylinder 22. The support rib 21 can improve the strength and rigidity of the entire filter assembly 2, while the filter cylinder 22 is used to remove dust and collect dust from the sintering flux at the discharge port of the screening machine.

[0028] The inner wall of the outer tube 1 is provided with inner steps 6 at both the upper and lower parts for installation on the filter assembly 2. A bearing seat 7 is installed on the inner step 6 facing the end of the outer tube 1. The one-way bearing 5 is installed in the bearing seat 7 and a sealing ring 8 is installed on both the upper and lower end faces of the one-way bearing 5. The function of the sealing ring 8 is to improve the sealing performance of the one-way bearing 5 and prevent dust from falling into the one-way bearing 5 and affecting its normal use.

[0029] The outer tube 1 and the filter assembly 2 form a sandwich for collecting dust. The dust-raising mechanism 3 is installed at the lower part of the filter assembly 2 and can drive the filter assembly 2 to rotate by means of the airflow blown out by the air inlet pipe 10 provided at the lower part of the filter assembly 2. An air outlet pipe 9 is installed on the upper side of the outer tube 1. The air outlet direction of the air outlet pipe 9 can be appropriately deviated from the radial direction of the outer tube 1 so that the filter assembly 2 will not be driven to rotate by the airflow generated when the air outlet pipe 9 is sucking dust. The dust scraping mechanism 4 is rotatably installed in the air outlet pipe 9. The actuating block 11 installed on the upper part of the filter assembly 2 can drive the dust scraping mechanism 4 to rotate along the axis of the air outlet pipe 9 by means of the actuating block 11 while the filter assembly 2 is rotating.

[0030] In this embodiment, the dust-raising mechanism 3 includes an outer ring body 30 and fan blades 31. The outer ring body 30 is interference-fitted to the outer periphery of the filter assembly 2, and a plurality of fan blades 31 are arranged at equal angles on the outer periphery of the outer ring body 30. The air intake direction of the air inlet pipe 10 blows toward the fan blades 31. The main purpose of the dust-raising mechanism 3 is to realize the rotation of the filter assembly 2 and assist in raising the dust accumulated between the filter assembly 2 and the outer pipe 1, so that it can be sucked away and discharged by the bag filter 12.

[0031] In this embodiment, the dust scraping mechanism 4 includes a support frame 40, a scraper 41, a central shaft 42, and a paddle 43. There are two support frames 40 arranged side by side on the inner wall of the air outlet pipe 9. There are at least three scraper 41s fixedly connected between the two support frames 40. The surface of the scraper 41 that is in contact with the inner wall of the air outlet pipe 9 is an arc surface. The central shaft 42 is also fixed between the two support frames 40. The paddle 43 is also connected to the support frame 40 near the filter assembly 2 by means of a connecting shaft 44. The actuating block 11 can actuate the paddle 43 to rotate, thereby driving the dust scraping mechanism 4 to rotate inside the air outlet pipe 9 to scrape off the dust adhering to the inner wall of the air outlet pipe 9. Several positioning blocks for positioning the support frame 40 are also provided on the inner wall of the air outlet pipe 9 near the filter assembly 2. The outer end of the air outlet pipe 9 is also connected to a flange and connected to the bag filter 12 by means of the flange. After installation, the support frame 40 near the bag filter 12 abuts against the outer side of the bag filter 12. An inclined air guide surface is provided on the end of the lever 43 facing the filter assembly 2, which can reduce the resistance of the airflow when it passes through the lever 43.

[0032] The working process and principle of this invention are as follows:

[0033] First, connect the upper end of the outer pipe 1 in this device to the discharge port of the screening machine, and connect the lower end of the outer pipe 1 to the receiving device. Then, start the screening machine and the bag filter 12 to begin dust collection. The dust generated at the discharge port will enter the interlayer through the filter cartridge 22 and be sucked away and discharged by the negative pressure generated by the bag filter 12. At this time, the filter assembly 2 and the dust scraping mechanism 4 are basically in a non-rotating state, that is, they are not working.

[0034] When it is necessary to clean the filter assembly 2 and the outlet pipe 9, the power of the bag filter 12 should be reduced appropriately, and a high-speed airflow should be introduced into the inlet pipe 10. The high-speed airflow blows the dust-raising mechanism 3 to rotate. With the help of the centrifugal force generated by the rotation of the dust-raising mechanism 3 and the back-blowing effect generated by the inward airflow, the dust adhering to the inner wall of the filter cartridge 22 is quickly cleaned to ensure the filtration effect of the filter assembly 2.

[0035] While the dust-generating mechanism 3 rotates, the generated airflow also lifts the dust in the interlayer, making it easier for the bag filter 12 to suck it away and discharge it. Simultaneously, the filter assembly 2, with the help of the actuating block 11, drives the paddle 43 and the dust-scraping mechanism 4 to rotate within the exhaust pipe 9. The scraper 41 then scrapes away the dust adhering to the inner wall of the exhaust pipe 9, ensuring efficient dust removal. Initially, the paddle 43 has a different weight at its upper and lower ends, ensuring it maintains a vertical position and thus guarantees smooth contact between the paddle 43 and the actuating block 11.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for sintering flux, characterized by, The dust filter comprises an outer tube (1), a filtering assembly (2), a dust blowing mechanism (3) and a dust scraping mechanism (4). The upper and lower ends of the filtering assembly (2) are installed in the inner part of the outer tube (1) by means of one-way bearings (5) so that the filtering assembly (2) can only rotate in one direction. The dust blowing mechanism (3) is installed at the lower part of the filtering assembly (2) and can drive the filtering assembly (2) to rotate by means of the air flow blown by the air inlet pipe (10) arranged at the lower part of the filtering assembly (2). The upper side of the outer tube (1) is provided with an air outlet pipe (9). The dust scraping mechanism (4) is rotatably installed in the air outlet pipe (9). The upper part of the filtering assembly (2) is provided with a poking block (11) so that the filtering assembly (2) can drive the dust scraping mechanism (4) to rotate along the axis of the air outlet pipe (9) by means of the poking block (11) while rotating. The dust blowing mechanism (3) comprises an outer ring body (30) and a fan blade (31). The outer ring body (30) is interference-fitted on the outer periphery of the filtering assembly (2) and is provided with a plurality of fan blades (31) arranged at equal angles on the outer periphery of the outer ring body (30). The air inlet direction of the air inlet pipe (10) blows towards the fan blades (31). The dust scraping mechanism (4) comprises a support frame (40), a scraping strip (41), a central shaft (42) and a poking piece (43). The support frame (40) is arranged in parallel on the inner wall of the air outlet pipe (9). The scraping strip (41) is fixedly connected between the two support frames (40). The central shaft (42) is also fixedly connected between the two support frames (40). The support frame (40) close to the filtering assembly (2) is further connected with the poking piece (43) by means of a connecting shaft (44). The poking block (11) can rotate the poking piece (43).

2. A dust removal device for sintering flux according to claim 1, characterized in that, The filtering assembly (2) comprises a ring-shaped member (20), a support rib (21) and a filter cylinder (22). The support rib (21) and the filter cylinder (22) are both installed between the two ring-shaped members (20). The support rib (21) is fixed to the outer side of the filter cylinder (22).

3. A dust removal device for sintering flux according to claim 1 or 2, characterized in that, The upper and lower parts of the inner wall of the outer tube (1) are both provided with an inner step (6) for installing the filtering assembly (2). The inner step (6) is provided with a bearing seat (7) on the side facing the end of the outer tube (1). The one-way bearing (5) is installed in the bearing seat (7) and the upper and lower end faces of the one-way bearing (5) are both provided with a sealing ring (8).

4. A dust removal device for sintering flux according to claim 1, characterized in that, The end of the outer tube (1) is provided with a flange.

5. A dust removal device for sintering flux according to claim 1, characterized in that, The inner wall of the air outlet pipe (9) close to the filtering assembly (2) is further provided with a plurality of positioning blocks for positioning the support frame (40). The outer end of the air outlet pipe (9) is also connected with a flange and is connected with a bag-type dust collector (12) by means of the flange. The support frame (40) close to the bag-type dust collector (12) abuts against the outer side of the bag-type dust collector (12) after installation.

6. A dust removal device for sintering flux according to claim 1, characterized in that, The end of the poking piece (43) facing the filtering assembly (2) is provided with an inclined air guide surface.

7. A dust removal device for sintering flux according to claim 1, characterized in that, The filtering assembly (2) is made of metal material.

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