Dust diffusion suppression device

Abstract

The utility model discloses a dust diffusion suppression device, and particularly relates to the technical field of dust treatment, which comprises a dust negative pressure absorption box connected to the top of a conveying box for conveying crushed raw coal, and a negative pressure fan box is mounted at one end of the dust negative pressure absorption box. A plurality of upper filtering assemblies are inserted into the top of the dust negative-pressure absorption box at equal intervals, each upper filtering assembly is vertically inserted into the top of the dust negative-pressure absorption box, and a plurality of lower filtering assemblies are connected to the outer side wall of the dust negative-pressure absorption box at equal intervals; and each lower filtering assembly is inserted into the dust negative pressure absorption box in a sliding manner along the horizontal direction. Dust is blocked and filtered in a multi-stage mode through the detachable upper filtering assemblies and the detachable lower filtering assemblies which are arranged in a staggered mode, so that one part of the dust adheres to the metal filter screen, the other part of the dust falls into the dust collection groove, and therefore the discharge amount of the dust from the end of the dust negative pressure absorption box is effectively reduced, and the dust removal efficiency is improved. The effect of inhibiting dust diffusion is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to dust treatment technical field more specifically, the utility model relates to a dust diffusion inhibition device. BACKGROUND

[0002] In the production process of the thermal power plant or coal processing plant, the crushing and conveying of raw coal are key links, however, the operation of these links often produces a large amount of dust, which not only affects the working environment, but also pollutes the surrounding environment, and even affects the normal operation of equipment, therefore, the dust diffusion inhibition treatment of the raw coal crushing and conveying belt operation area is particularly important.

[0003] In actual operation, a large amount of fine coal dust is released in the crushing process of raw coal, which is easy to diffuse in the production area with air flow, increasing the dust concentration in the surrounding air, at the same time, the conveying belt produces dust in the process of transporting raw coal due to the continuous accumulation and falling of coal, which not only affects the health of workers, but also may cause the wear and failure of equipment, therefore, a dust diffusion inhibition device for conveying raw coal after crushing is needed. UTILITY MODEL CONTENT

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a dust diffusion inhibition device.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: a dust diffusion inhibition device, comprising a dust negative pressure absorption box connected at the top of a conveying box 10 for conveying raw coal after crushing, one end of the dust negative pressure absorption box is provided with a negative pressure fan box, a plurality of upper filter assemblies are equidistantly inserted at the top of the dust negative pressure absorption box, each upper filter assembly is vertically inserted at the top of the dust negative pressure absorption box, and a plurality of lower filter assemblies are equidistantly connected to the outer side wall of the dust negative pressure absorption box, each lower filter assembly is slidably inserted into the dust negative pressure absorption box along the horizontal direction, and the positions of the plurality of upper filter assemblies and the plurality of lower filter assemblies are sequentially staggered.

[0006] As a further improvement of the utility model technical scheme, the bottom of the dust negative pressure absorption box is communicated with the inside of the conveying box 10, a plurality of fixing frames are connected between the bottom end of the dust negative pressure absorption box and the top end of the conveying box 10, and the two ends of each fixing frame are fixedly connected between the bottom of the dust negative pressure absorption box and the top end of the conveying box 10 through screws.

[0007] As a further improvement of the utility model technical scheme, the negative pressure fan box and the end of the dust negative pressure absorption box are fixedly connected through screws, and a sealing ring is arranged at the contact edge between the negative pressure fan box and the dust negative pressure absorption box.

[0008] As a further improvement of the utility model technical scheme, the upper filtering assembly includes the first fixed frame inserted into the inside of the dust negative pressure absorption box, the top of the first fixed frame is provided with a V-shaped block, the top of the V-shaped block is above the dust negative pressure absorption box and is connected with a top plate, the inside of the first fixed frame is installed with a first metal filter screen, and the inside wall of the first fixed frame is connected with a first fixed pressing strip at the positions of the two sides of the first metal filter screen, the bottom of the first fixed frame is provided with a bottom plate, and the top of the bottom plate is provided with a first dust collecting groove at the positions of the two sides of the first metal filter screen.

[0009] As a further improvement of the utility model technical scheme, the top of the dust negative pressure absorption box is provided with a mounting hole for the insertion of the first fixed frame, the top of the mounting hole is provided with a tapered notch matching the inclination angle of the top plate, the bottom edge of the top plate is provided with a sealing gasket, and the top of the top plate is provided with a first handle, and the two ends of the first fixed pressing strip are fixedly connected with the first handle through screws.

[0010] As a further improvement of the utility model technical scheme, the lower filtering assembly includes the second fixed frame inserted into the inside of the dust negative pressure absorption box, the bottom end of the second fixed frame is provided with a T-shaped clamping block, and the inside of the second fixed frame is installed with a second metal filter screen, the inner wall of the second fixed frame is connected with a second fixed pressing strip at the two sides of the second metal filter screen, the bottom inner wall of the second fixed frame is provided with a second dust collecting groove at the positions of the two sides close to the second metal filter screen, and the end outer wall of the second fixed frame is fixedly connected with a fixed sheet, and the inside of the two fixed sheets is embeddedly installed with a magnet block for adsorbing the outer wall of the dust negative pressure absorption box.

[0011] As a further improvement of the utility model technical scheme, the bottom inner wall of the dust negative pressure absorption box is provided with a T-shaped sliding groove along the horizontal direction outside the T-shaped clamping block, the outer side wall of the second fixed frame is provided with a second handle, and the two ends of the second fixed pressing strip are fixedly connected with the second fixed frame through screws.

[0012] The utility model discloses the beneficial effect of:

[0013] 1, the dust diffusion inhibition device of the utility model in use, the negative pressure fan in the inside of negative pressure fan case runs and makes the inside of dust negative pressure absorption box produce negative pressure, absorbs the dust negative pressure of the dust that the transmission box inside lifts in the lower end port position of dust negative pressure absorption box, carries out multistage blocking filtration to the dust through the staggered arrangement of multiple upper filtering assemblies and lower filtering assemblies, makes the dust adhere on the metal filter screen partially, and another part falls to the dust collecting groove inside, thereby effectively reducing the discharge amount of the dust from the end of the dust negative pressure absorption box, reaching the effect of dust diffusion inhibition;

[0014] 2、The upper filtering assembly is vertically inserted on the top of the dust negative pressure absorption box, an operator can take out and install the upper filtering assembly through the first handle, the first metal filter screen is installed in a clamping mode of the first fixed pressing strip, the first metal filter screen is convenient to take out and disassemble, clean or replace, a conical notch is arranged on the top of the installation hole for the first fixed frame to be inserted, the whole upper filtering assembly is more closely fitted to the installation hole under the gravity, and the sealing performance is good after installation;

[0015] 3、The lower filtering assembly is horizontally slidably inserted in the dust negative pressure absorption box, an operator can take out and install the lower filtering assembly through the second handle, the second metal filter screen is installed in a clamping mode of the second fixed pressing strip, the second metal filter screen is convenient to take out and disassemble, clean or replace, and the lower filtering assembly is kept in a stable state by being adsorbed to the outer wall of the dust negative pressure absorption box through the arranged magnet block after installation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a structural schematic view of the utility model.

[0017] Figure 2 It is a sectional view of the lower filtering assembly after being taken out.

[0018] Figure 3 It is a structural schematic view of the upper filtering assembly in the utility model.

[0019] Figure 4 It is a structural schematic view of the bottom plate in the utility model.

[0020] Figure 5 It is a structural schematic view of the lower filtering assembly in the utility model. Figure 2 It is an enlarged view of part A in the utility model.

[0021] Figure 6 It is a structural schematic view of the lower filtering assembly in the utility model.

[0022] The figure mark is: 1, the dust negative pressure absorption box; 2, the fixed frame; 3, the negative pressure fan box; 4, the upper filtering assembly; 5, the lower filtering assembly; 6, the T-shaped sliding groove; 7, the installation hole; 401, the first fixed frame; 402, the V-shaped block; 403, the top plate; 404, the first handle; 405, the sealing gasket; 406, the bottom plate; 407, the first metal filter screen; 408, the first fixed pressing strip; 409, the first dust collection groove; 501, the second fixed frame; 502, the T-shaped clamping block; 503, the second handle; 504, the second metal filter screen; 505, the second fixed pressing strip; 506, the second dust collection groove; 507, the fixed sheet; 508, the magnet block; 701, the conical notch; 8, the crusher discharge port; 9, the receiving hopper; 10, the conveying box; 11, the conveying belt. DETAILED DESCRIPTION

[0023] Clearly, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] As shown in the accompanying drawings of the embodiments of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely, obviously, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Figures 1-6 As shown in the accompanying drawings of the embodiments of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely, obviously, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] As shown in the accompanying drawings of the embodiments of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely, obviously, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Figures 1-2 As shown in the accompanying drawings of the embodiments of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely, obviously, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] As shown in the accompanying drawings of the embodiments of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely, obviously, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Figures 1-2 As shown in the accompanying drawings of the embodiments of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely, obviously, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] As shown in the accompanying drawings of the embodiments of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely, obviously, the described embodiments are merely a part of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Figures 1-5As shown in the drawings, the upper filtering assembly 4 includes a first fixed frame 401 inserted into the inside of the dust negative pressure absorption box 1, the top of the first fixed frame 401 is provided with a V-shaped block 402, the top of the V-shaped block 402 is above the dust negative pressure absorption box 1 and is connected with a top plate 403, the inside of the first fixed frame 401 is installed with a first metal filter screen 407, and the inner side walls of the first fixed frame 401 are connected with first fixed pressing strips 408 at both sides of the first metal filter screen 407, the bottom of the first fixed frame 401 is provided with a bottom plate 406, the top of the bottom plate 406 is provided with a first dust collecting groove 409 at both sides of the first metal filter screen 407, the top of the dust negative pressure absorption box 1 is provided with a mounting hole 7 for inserting the first fixed frame 401, the top of the mounting hole 7 is provided with a tapered notch 701 matching the inclination angle of the top plate 403, the bottom edge of the top plate 403 is provided with a sealing gasket 405, and the top of the top plate 403 is provided with a first handle 404, and the two ends of the first fixed pressing strip 408 are fixedly connected with the first handle 404 through screws, and the upper filtering assembly 4 is arranged to block and filter the dust flowing through the first metal filter screen 407 during use, thereby reducing the dust discharge from the end of the dust negative pressure absorption box 1.

[0028] As shown in the drawings, Figures 1-2 and the drawings, Figure 6 As shown in the drawings, the lower filtering assembly 5 includes a second fixed frame 501 inserted into the inside of the dust negative pressure absorption box 1, the bottom end of the second fixed frame 501 is provided with a T-shaped clamping block 502, and the inside of the second fixed frame 501 is installed with a second metal filter screen 504, the inner wall of the second fixed frame 501 is connected with a second fixed pressing strip 505 at both sides of the second metal filter screen 504, the bottom inner wall of the second fixed frame 501 is provided with a second dust collecting groove 506 at both sides close to the second metal filter screen 504, the end outer wall of the second fixed frame 501 is fixedly connected with a fixed sheet 507, the inside of the two fixed sheets 507 is embeddedly installed with a magnet block 508 for adsorbing the outer wall of the dust negative pressure absorption box 1, the bottom inner wall of the dust negative pressure absorption box 1 is provided with a T-shaped sliding groove 6 along the horizontal direction outside the T-shaped clamping block 502, the outer side wall of the second fixed frame 501 is provided with a second handle 503, and the two ends of the second fixed pressing strip 505 are fixedly connected with the second fixed frame 501 through screws, and the lower filtering assembly 5 is arranged to block and filter the dust flowing through the second metal filter screen 504 during use, thereby further reducing the dust discharge from the end of the dust negative pressure absorption box 1.

[0029] Working principle: the utility model discloses a dust diffusion inhibition device, and the specific structure is as shown in the drawings Figures 1-6As shown, the raw coal is discharged from the bottom of the crusher discharge port 8 into the receiving hopper 9 and falls on the conveyor belt 11 inside the conveying box 10 for conveying to the desired position. During the conveying process, the raw coal is in a just-crushed state, and dust is raised inside the conveying box 10 during the falling and conveying process. At this time, the dust diffusion suppression device is designed, the negative pressure fan in the negative pressure fan box 3 operates to generate negative pressure in the inside of the dust negative pressure absorption box 1, the dust raised in the inside of the conveying box 10 at the lower end port position of the dust negative pressure absorption box 1 is negatively pressure absorbed, a plurality of upper filter assemblies 4 and lower filter assemblies 5 are arranged in a staggered manner to perform multi-stage blocking filtration on the dust, so that part of the dust adheres to the metal filter screen, and another part falls into the dust collecting groove, thereby effectively reducing the discharge amount of the dust from the end of the dust negative pressure absorption box 1, and achieving the effect of dust diffusion suppression. The upper filter assembly 4 is vertically inserted into the top of the dust negative pressure absorption box 1, the operator can take out and install the upper filter assembly 4 through the first handle 404, the first metal filter screen 407 is installed in a clamping manner by the first fixed pressing strip 408, which is convenient for taking out and disassembling, cleaning or replacing, the top of the dust negative pressure absorption box 1 is provided with a conical notch 701 at the top of the mounting hole 7 for the first fixed frame 401 to insert, and the entire upper filter assembly 4 is more closely fitted to the mounting hole 7 by the gravity and has good sealing performance after installation, and the lower filter assembly 5 is horizontally slidably inserted into the inside of the dust negative pressure absorption box 1, the operator can take out and install the lower filter assembly 5 through the second handle 503, the second metal filter screen 504 is installed in a clamping manner by the second fixed pressing strip 505, which is convenient for taking out and disassembling, cleaning or replacing, and the lower filter assembly 5 is kept in a stable state by using the magnet block 508 to attract the outer wall of the dust negative pressure absorption box 1 after installation.

[0030] In the drawings of the embodiments of the present application, only the structures related to the embodiments of the present application are involved, and other structures can be referred to the general design, and the same embodiments and different embodiments of the present application can be combined with each other without conflict.

[0031] Finally, the above-mentioned is only the preferred embodiment of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dust diffusion suppression device, characterized in that: The invention comprises a dust negative pressure absorption box (1) connected to the top of a conveying box for conveying crushed raw coal, a negative pressure fan box (3) being installed at one end of the dust negative pressure absorption box (1), and a plurality of upper filter assemblies (4) being inserted at equal intervals on the top of the dust negative pressure absorption box (1), each upper filter assembly (4) being inserted vertically on the top of the dust negative pressure absorption box (1), and a plurality of lower filter assemblies (5) being connected at equal intervals to the outer wall of the dust negative pressure absorption box (1), each lower filter assembly (5) being inserted into the interior of the dust negative pressure absorption box (1) by sliding in a horizontal direction, and the plurality of upper filter assemblies (4) and the plurality of lower filter assemblies (5) being installed alternately in sequence.

2. The dust diffusion suppression device according to claim 1, characterized in that: The bottom of the dust negative pressure absorption box (1) is communicated with the interior of the transfer box, and a plurality of fixing frames (2) are connected between the bottom end of the dust negative pressure absorption box (1) and the top end of the transfer box, and both ends of each fixing frame (2) are fixedly connected to the bottom of the dust negative pressure absorption box (1) and the top end of the transfer box by screws.

3. The dust diffusion suppression device according to claim 1, characterized in that: The negative pressure fan box (3) and the end of the dust negative pressure absorption box (1) are fixedly connected by screws, and a sealing ring is provided at the contact edge of the negative pressure fan box (3) and the dust negative pressure absorption box (1).

4. The dust diffusion suppression device according to claim 1, characterized in that: The upper filter assembly (4) includes a first fixed frame (401) inserted into the dust negative pressure absorption box (1), a V-shaped block (402) is provided on the top of the first fixed frame (401), and the top of the V-shaped block (402) is located above the dust negative pressure absorption box (1) and is connected to a top plate (403), a first metal filter (407) is installed inside the first fixed frame (401), and the inner side walls of the first fixed frame (401) are connected to first fixed pressure strips (408) at positions on both sides of the first metal filter (407), a bottom plate (406) is provided at the bottom of the first fixed frame (401), and a first dust collecting trough (409) is provided on the top of the bottom plate (406) at positions on both sides of the first metal filter (407).

5. The dust diffusion suppression device according to claim 4, characterized in that: The top of the dust negative pressure absorption box (1) is provided with a mounting hole (7) for inserting a first fixing frame (401), the top of the mounting hole (7) is provided with a conical notch (701) that matches the inclination angle of the top plate (403), a sealing gasket (405) is provided at the bottom edge of the top plate (403), and a first handle (404) is provided at the top of the top plate (403), and both ends of the first fixing strip (408) are fixedly connected to the first handle (404) by screws.

6. The dust diffusion suppression device according to claim 1, characterized in that: The lower filter assembly (5) comprises a second fixed frame (501) inserted into the interior of the dust negative pressure absorption box (1), a T-shaped block (502) is provided at the bottom end of the second fixed frame (501), and a second metal filter (504) is installed inside the second fixed frame (501), the inner wall of the second fixed frame (501) is connected to second fixed strips (505) on both sides of the second metal filter (504), the bottom inner wall of the second fixed frame (501) is close to both sides of the second metal filter (504) and is provided with second dust collecting grooves (506), the outer wall of the end of the second fixed frame (501) is fixedly connected to a fixing plate (507), and the interior of the two fixing plates (507) is embedded with a magnet block (508) for adsorbing the outer wall of the dust negative pressure absorption box (1).

7. The dust diffusion suppression device according to claim 6, characterized in that: A T-shaped sliding groove (6) is provided on the inner wall of the bottom of the dust negative pressure absorption box (1) in a horizontal direction corresponding to the outside of the T-shaped block (502), a second handle (503) is provided on the outer wall of the second fixed frame (501), and both ends of the second fixed pressure strip (505) are fixedly connected to the second fixed frame (501) by screws.

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