A graded dust removal device

Abstract

The utility model discloses a graded dust removal device, comprising a dust removal device body and a dust inlet pipe, wherein a dust inlet pipe is fixed at the dust inlet of the dust removal device body, and also comprises a filtering and intercepting mechanism, wherein the filtering and intercepting mechanism comprises an external connecting pipe, a transfer box, a bottom cover, a conical pipe, a primary cut-off plate, a secondary cut-off plate, an inner rotating pipe, a bottom container and an extension pipe, wherein the extension pipe is welded to the external connecting pipe at the outer pipe opening of the dust inlet pipe, and a bottom opening is provided at the lower pipe wall of the external connecting pipe, and a transfer box is welded and inserted into the bottom opening of the external connecting pipe. The utility model improves the dust inlet pipe at the dust removal device body with a graded dust removal structure to arrange a filtering and intercepting mechanism, wherein the primary cut-off plate and the secondary cut-off plate at the filtering and intercepting mechanism can gradedly intercept larger dust particles when contacting with dust-laden wind force, thereby effectively preventing larger dust particles from entering the dust removal device body with the wind and damaging the filter bag.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal devices, in particular to a graded dust removal device. Background Art

[0002] Graded dust removal efficiency refers to the proportion of particulate matter in the air that is captured and removed by filters of corresponding levels after passing through filters of different levels in the dust removal equipment. This indicator can evaluate the filtering effect of dust removal equipment and the quality of clean air. At present, the dust removal devices used in factories are usually equipped with filtering structures of different levels, and a large amount of particulate matter is handled by equipment such as high-efficiency filters and fans. The secondary bag dust collector commonly used in factories has been further upgraded on the basis of the primary bag dust collector. Its main components are the air intake box, filter bag assembly, and dust cleaning system. Its working principle is to divert the dust-containing gas into the filter bag assembly, and intercept the dust particles through the tiny pores on the surface of the filter bag to form a dust removal layer to achieve dust filtration. The secondary bag dust collector has the advantages of high-efficiency filtration, recycling, and no secondary pollution.

[0003] At present, when the dust inlet pipe of the graded bag-type dust collector is connected to the fan to inhale dust-containing gas, larger particles of impurities in the gas usually enter the bag-type dust collector along the lower inner wall of the pipe and rush towards the bags. Under the long-term impact of large particles of impurities on the bags on the inner wall of the bag-type dust collector, some slightly heavy and hard dust particles may cause wear and damage to the filter bags, thereby affecting the graded dust removal effect of the bag-type dust collector. For this reason, we propose a graded dust removal device. Utility Model Content

[0004] The main purpose of the utility model is to provide a graded dust removal device. The utility model improves the dust inlet pipe at the main body of the dust removal device with a graded dust removal structure and sets a filter interception mechanism. The primary interception plate and the secondary interception plate at the filter interception mechanism can gradedly intercept larger dust particles when exposed to dust-laden wind, effectively preventing larger dust particles from entering the main body of the dust removal device with the wind and damaging the filter bags, thereby effectively solving the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A graded dust removal device comprises a dust removal device body and a dust inlet pipe, wherein a dust inlet pipe is fixed at the dust inlet of the dust removal device body, and also comprises a filtering mechanism, wherein the filtering mechanism comprises an external connecting pipe, a transfer box, a bottom cover, a conical tube, a primary cut-off plate, a secondary cut-off plate, an inner rotating tube, a bottom containing tube and an outer extension tube, wherein the outer tube opening of the dust inlet tube is welded with the external connecting tube, and a bottom opening is opened at the lower tube wall of the external connecting tube, a transfer box is welded in the bottom opening of the external connecting tube, and a bottom cover is welded in the bottom box opening of the transfer box, a middle cover body of the bottom cover is penetrated into an upper tube opening welded with a conical tube, and the lower tube body of the conical tube is externally rotated to connect with the inner rotating tube welded on the top of the bottom containing tube, a primary cut-off plate is arranged and welded in the box wall of the transfer box on the side close to the outer extension tube, and a secondary cut-off plate is arranged and welded in the box wall of the transfer box on the side close to the dust inlet pipe.

[0007] Furthermore, the plate body of the primary cut-off plate is inclined toward the extension tube at the inner box wall of the transfer box, and a windage clearance is reserved between the plate bodies of the primary cut-off plate;

[0008] By adopting the above technical solution, the primary intercepting plate faces the wind force containing dust with the inclined plate body, and intercepts some larger particles while passing the wind with the wind clearance between the plate bodies.

[0009] Furthermore, the plate body of the secondary cut-off plate is inclined toward the extension tube at the inner box wall of the transfer box, and a windage clearance is reserved between the plate bodies of the secondary cut-off plate;

[0010] By adopting the above technical solution, the secondary intercepting plate faces the wind force containing dust with the inclined plate body, and intercepts some larger particles for a second time while passing the wind with the wind clearance between the plate bodies.

[0011] Furthermore, a C-shaped opening is provided at the upper box body of the transfer box, and the transfer box is welded to the external connecting pipe by clamping the box body with the C-shaped opening at the bottom opening;

[0012] By adopting the above technical solution, the transfer box can be better clamped at the bottom opening with the C-shaped opening and welded and fixed with the external connecting pipe.

[0013] Furthermore, a U-shaped seat is welded at the top tube wall of the external connecting tube, and a vibration motor is installed on the seat plate surface of the U-shaped seat;

[0014] By adopting the above technical solution, the U-shaped seat outside the tube wall of the external connecting tube can be used to lock and install the vibration motor with bolts, so that the vibration force of the vibration motor when it is powered on can be transmitted to the external connecting tube through the U-shaped seat.

[0015] Furthermore, an expansion plate extending outward from the tube is fixed at three points on the inner tube wall of the external connecting tube, and the expansion plate is inserted into the dust tube, and a rib plate is provided on the outer plate surface of the expansion plate against the inner tube wall of the dust inlet tube;

[0016] By adopting the above technical solution, the external connecting pipe is inserted into the dust pipe with three sets of expansion plates for internal support connection, which facilitates the transmission of vibration at the external connecting pipe to the dust inlet pipe.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] (1) The utility model improves the dust inlet pipe at the main body of the dust removal device with a graded dust removal structure and sets a filter interception mechanism. The primary interception plate and the secondary interception plate at the filter interception mechanism can intercept larger dust particles in a graded manner when exposed to dust-laden wind, effectively preventing larger dust particles from entering the main body of the dust removal device with the wind and damaging the filter bag;

[0019] (2) The utility model also adds a vibration motor to the external connecting pipe of the filtering mechanism, and the external connecting pipe is firmly connected to the dust inlet pipe by an expansion plate. After the dust removal device body has been running for a period of time, the vibration motor can be turned on to transmit the vibration force of the vibration motor to the external connecting pipe and the dust inlet pipe, so that the dust attached to the inner wall of the pipe falls off due to the vibration force, effectively avoiding a large amount of dust attached to the external connecting pipe and the dust inlet pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a schematic diagram of the overall structure of a classification type dust removal device.

[0021] Figure 2 It is an exploded view of the filtering mechanism of a graded dust removal device of the utility model.

[0022] Figure 3 The utility model is a schematic diagram of the transfer box structure of a graded dust removal device.

[0023] In the figure: 1. Dust removal device body; 2. Dust inlet pipe; 3. Filter and interception mechanism; 4. External connecting pipe; 5. Bottom opening; 6. Transfer box; 7. Bottom cover; 8. Conical tube; 9. Primary cut-off plate; 10. Secondary cut-off plate; 11. Inner rotating tube; 12. Bottom container; 13. Extension tube; 14. U-shaped seat; 15. Vibration motor; 16. Expansion board. DETAILED DESCRIPTION

[0024] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0025] like Figure 1-3As shown, a graded dust removal device comprises a dust removal device body 1 and a dust inlet pipe 2, wherein the dust inlet of the dust removal device body 1 is fixed with the dust inlet pipe 2, and further comprises a filtering mechanism 3, wherein the filtering mechanism 3 comprises an external connecting pipe 4, a transfer box 6, a bottom cover 7, a conical pipe 8, a primary cut-off plate 9, a secondary cut-off plate 10, an inner rotating pipe 11, a bottom container 12 and an extension pipe 13, wherein the outer pipe opening of the dust inlet pipe 2 is welded with the external connecting pipe 4, and a lower pipe wall of the external connecting pipe 4 is provided with a There is a bottom opening 5, a transfer box 6 is welded into the bottom opening 5 of the external connecting tube 4, and a bottom cover 7 is welded inside the bottom box opening of the transfer box 6, the middle cover body of the bottom cover 7 is inserted into the upper tube opening welded with a conical tube 8, and the lower tube body of the conical tube 8 is externally screwed to the inner screw tube 11 welded on the top of the bottom container tube 12, a primary cut-off plate 9 is arranged and welded in the box wall of the transfer box 6 on the side close to the extension tube 13, and a secondary cut-off plate 10 is arranged and welded in the box wall of the transfer box 6 on the side close to the dust inlet pipe 2.

[0026] The plate body of the primary cut-off plate 9 is inclined toward the extension tube 13 at the inner box wall of the transfer box 6, and a windage clearance is reserved between the plate bodies of the primary cut-off plate 9;

[0027] By adopting the above technical solution, the primary intercepting plate 9 faces the wind force containing dust with the inclined plate body, and intercepts some larger particles while passing the wind with the wind clearance between the plate bodies.

[0028] The plate body of the secondary cut-off plate 10 is inclined toward the extension tube 13 at the inner box wall of the transfer box 6, and a windage clearance is reserved between the plate bodies of the secondary cut-off plate 10;

[0029] By adopting the above technical solution, the secondary intercepting plate 10 faces the wind force containing dust with the inclined plate body, and intercepts some larger particles for a second time while passing the wind with the wind clearance between the plate bodies.

[0030] The upper box body of the transfer box 6 is provided with a C-shaped opening, and the transfer box 6 is welded to the bottom opening 5 and communicated with the external connecting pipe 4 by means of the box body with the C-shaped opening;

[0031] By adopting the above technical solution, the transfer box 6 can be better clamped at the bottom opening 5 with the C-shaped opening and welded and fixed to the external connecting pipe 4.

[0032] Wherein, a U-shaped seat 14 is welded on the top tube wall of the external connecting tube 4, and a vibration motor 15 is installed on the seat plate surface of the U-shaped seat 14;

[0033] By adopting the above technical solution, the U-shaped seat 14 outside the tube wall of the external connecting tube 4 can be used to lock and install the vibration motor 15 with bolts, so that the vibration force of the vibration motor 15 when it is powered on can be transmitted to the external connecting tube 4 through the U-shaped seat 14.

[0034] Among them, an expansion plate 16 extending outward from the tube is fixed at three points on the inner tube wall of the external connecting tube 4, and the expansion plate 16 is inserted into the dust tube 2, and the outer plate surface of the expansion plate 16 has a rib plate against the inner tube wall of the dust inlet tube 2;

[0035] By adopting the above technical solution, the external connecting pipe 4 is inserted into the dust inlet pipe 2 with three sets of expansion plates 16 for internal support connection, so as to facilitate the transmission of vibration at the external connecting pipe 4 to the dust inlet pipe 2.

[0036] It should be noted that the utility model is a graded dust removal device. The dust inlet pipe 2 is improved at the dust removal device body 1 with a graded dust removal structure. After the filter and interception mechanism 3 is installed at the dust inlet pipe 2, the external connecting pipe 4 of the filter and interception mechanism 3 is welded and interconnected at the dust inlet pipe 2, and then the outer connecting pipe 4 is connected to the pipeline of the dust-containing wind introduced by the external fan through the extension pipe 13. Then, the inner rotating pipe 11 welded and interconnected above the bottom container 12 can be normally screwed on the bottom of the conical pipe 8. At this time, the dust-containing wind introduced by the external fan enters through the extension pipe 13. When the external pipe 4 is connected, the dust with larger particles will hit the primary cut-off plate 10 at a lower position due to its slight weight when driven by the wind and fall into the transfer box 6. The wind passing through the primary cut-off plate 10 will pass through the secondary cut-off plate 10 again. The secondary cut-off plate 10 will meet the dust or debris with larger particles again. These slightly heavy dust and debris will fall into the bottom cover 7 and collect. With the wind disturbance of the pipeline, they will enter the conical pipe 8 and enter the bottom container 12 along the inner rotating pipe 11 to be collected. The smaller particles will be collected at the secondary cut-off plate 1 0 enters the dust removal device body 1 through the dust inlet pipe 2 for graded dust removal, and the vibration motor 15 installed on the surface of the external connecting pipe 4 with the U-shaped seat 14 can be powered on to vibrate, so that the U-shaped seat 14 transmits the vibration to the external connecting pipe 4, and at the same time, the vibration of the expansion plate 16 and the external connecting pipe 4 can be transmitted to the dust inlet pipe 2, forcing the attached dust in the pipe to fall off due to the vibration force, and the dust separated from the dust inlet pipe 2 can enter the dust removal device body 1 for graded filtration, while the part of the dust separated from the external connecting pipe 4 can be transferred to the central The dust in the rotating box 6 is collected and falls into the bottom container 12, and the rest of the detached dust can enter the dust removal device body 1 with the wind. The vibration motor 15 can be manually turned on by a worker for a few minutes during the use of the dust removal device body 1 and then turned off actively. When no dust-containing gas enters the dust removal device body 1, the inner rotating tube 11 can be rotated away from under the conical tube 8, so that the larger dust particles in the bottom container 12 can be poured out from the inner rotating tube 11 for cleaning, and then the inner rotating tube 11 can be rotated back to the conical tube 8 for installation.

[0037] It should be noted that the utility model is a graded dust removal device, and the components in the utility model are all components known to those skilled in the art, and the structures and principles thereof are all known to those skilled in the art through technical manuals or conventional experimental methods.

[0038] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A graded dust removal device, comprising a dust removal device body (1) and a dust inlet pipe (2), wherein the dust inlet pipe (2) is fixed at the dust inlet of the dust removal device body (1), characterized in that: The dust inlet pipe (2) further comprises a filtering and intercepting mechanism (3), wherein the filtering and intercepting mechanism (3) comprises an external connecting pipe (4), a transfer box (6), a bottom cover (7), a conical pipe (8), a primary cut-off plate (9), a secondary cut-off plate (10), an inner rotating pipe (11), a bottom container (12) and an extension pipe (13); the extension pipe (13) is welded to the external connecting pipe (4) at the outer pipe opening of the dust inlet pipe (2); a bottom opening (5) is provided at the lower pipe wall of the external connecting pipe (4); and the bottom opening (5) of the external connecting pipe (4) is inserted into the welded A transfer box (6) is connected, and a bottom cover (7) is welded inside the bottom box opening of the transfer box (6), the middle cover body of the bottom cover (7) penetrates into the upper tube opening welded with a conical tube (8), and the lower tube body of the conical tube (8) is externally rotated to connect to the inner rotating tube (11) welded at the top of the bottom container tube (12), and a primary cut-off plate (9) is arranged and welded inside the box wall of the transfer box (6) on the side close to the extension tube (13), and a secondary cut-off plate (10) is arranged and welded inside the box wall of the transfer box (6) on the side close to the dust inlet pipe (2).

2. A classification dust removal device according to claim 1, characterized in that: The plate bodies of the primary cut-off plates (9) are inclined at the inner box wall of the transfer box (6) toward the direction of the extension tube (13), and a windage clearance is reserved between the plate bodies of the primary cut-off plates (9).

3. A classification dust removal device according to claim 1, characterized in that: The plate bodies of the secondary cut-off plates (10) are inclined at the inner box wall of the transfer box (6) towards the direction of the extension tube (13), and a windage clearance is reserved between the plate bodies of the secondary cut-off plates (10).

4. A classification dust removal device according to claim 1, characterized in that: The upper box body of the transfer box (6) is provided with a C-shaped opening, and the transfer box (6) is welded to the external connection pipe (4) by clamping the box body with the C-shaped opening at the bottom opening (5).

5. A classification dust removal device according to claim 1, characterized in that: A U-shaped seat (14) is welded to the top tube wall of the external connecting tube (4), and a vibration motor (15) is installed on the seat plate surface of the U-shaped seat (14).

6. A classification dust removal device according to claim 5, characterized in that: An expansion plate (16) extending outward from the tube is fixed at three points on the inner tube wall of the external connecting tube (4), and the expansion plate (16) is inserted into the dust tube (2). A rib plate is provided on the outer plate surface of the expansion plate (16) to abut against the inner tube wall of the dust inlet tube (2).

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