Ventilation equipment for dust explosion prevention

Abstract

The utility model discloses ventilation equipment for dust explosion prevention, which belongs to the technical field of ventilation equipment and comprises a movable cabinet body, a ventilation mechanism is arranged at the top of the movable cabinet body and comprises a ventilation box, a water storage mechanism is arranged at the bottom of the movable cabinet body, a filtering mechanism is arranged in the ventilation mechanism, and a cleaning mechanism is mounted in the movable cabinet body. The filtering mechanism comprises a connecting plate, one side of the connecting plate is fixedly connected with a spring, one end of the spring is fixedly connected with a top plate, and one side of the top plate is provided with a filtering frame for filtering dust. The device has the beneficial effects that the filtering mechanism and the cleaning mechanism are arranged, during long-term ventilation, dust adheres to the surface of a filtering frame, a lifting block moving up and down is used for driving a banister brush block to move, and when the banister brush block cleans the dust on the surface of the filtering frame, an impact head collides with a protruding head, so that the dust on the surface of the filtering frame is better cleaned, and the service life of the filtering frame is prolonged. The filtering frame is effectively prevented from being blocked and the ventilation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, in particular to a ventilation equipment for dust explosion prevention. Background Art

[0002] Dust refers to solid particles suspended in the air. The International Organization for Standardization stipulates that solid suspended matter with a particle size of less than 75μm is defined as dust. There are five necessary factors for dust explosions: fuel (combustible dust), oxidizer (such as oxygen in the air), ignition source, confined space, and diffusion (formation of dust cloud). In order to avoid dust explosions, ventilation equipment is generally used for ventilation, that is, to eliminate the diffusion factor among the five factors. Ventilation includes local exhaust and comprehensive ventilation. Local exhaust draws out the air in the dust environment to reduce the dust concentration in the dust environment and achieve the purpose of preventing dust explosions.

[0003] After searching, the Chinese patent announcement number CN215901207U discloses a dust explosion-proof ventilation device, which includes a cabinet, casters installed under the cabinet and handrails installed on the side of the cabinet. An air inlet pipe is provided on one side of the cabinet, and an explosion-proof fan is connected to the other side of the cabinet. The air inlet pipe and the air outlet of the explosion-proof fan are installed with bellows, and a dust concentration detector is installed on the air inlet pipe. A spray chamber, a dust collecting chamber and a water tank are respectively provided inside the cabinet from top to bottom, and a strip hole is provided between the spray chamber and the dust collecting chamber; a plurality of guide grooves are symmetrically provided in the spray chamber, and a filter plate is installed in the guide groove, and the filter plate includes a filter frame and a filter plate installed on the filter frame. The filter frame is provided with a sloped surface at the contact point with the mesh, the thickness of the filter frame is smaller than the width of the strip hole, the spray chamber is provided with a nozzle interface, and the nozzle interface is connected with an atomizing nozzle; the dust collecting chamber is hinged with a cabinet door, and a dust collecting box is installed in the dust collecting chamber, and an opening is provided above the dust collecting box; a water outlet is provided under the water tank, and a water inlet is provided above the water tank, and the water outlet is connected with the atomizing nozzle. The device has the advantages of flexible use, compact structure, and convenient maintenance. However, when the device is ventilated, the effect of cleaning the mesh on the filter plate is not good, and the filter plate needs to be removed frequently for flushing, which increases labor costs, is inconvenient to use, and its practicality needs to be enhanced. Utility Model Content

[0004] The purpose of the utility model is to provide a dust explosion-proof ventilation device in order to solve the above-mentioned problem.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A dust explosion-proof ventilation device comprises a mobile cabinet, a ventilation mechanism is arranged on the top of the mobile cabinet, the ventilation mechanism comprises a ventilation box, a water storage mechanism is arranged at the bottom of the mobile cabinet, a filtering mechanism is arranged in the ventilation mechanism, a cleaning mechanism is installed in the mobile cabinet, the filtering mechanism comprises a connecting plate, the connecting plate is fixedly connected to the inner walls of both sides of the ventilation box, a spring is fixedly connected to one side of the connecting plate, one end of the spring is fixedly connected to a top plate, a filter frame for filtering dust is arranged on one side of the top plate, and a plurality of protrusions are fixedly connected to the side of the filter frame away from the top plate;

[0007] The cleaning mechanism comprises two symmetrically arranged lifting blocks, the inner side of the lifting blocks is fixedly connected with a soft brush block for cleaning the filter frame, and one side of the lifting blocks is fixedly connected with an impact head.

[0008] Preferably, the inner walls on both sides of the ventilation box are fixedly connected with limit plates, and the limit plates cooperate with the top plate to limit the filter frame.

[0009] Preferably, the cleaning mechanism includes mounting columns, which are fixedly connected to the inner walls on both sides of the ventilation box, and the two mounting columns are rotatably connected to screw rods and sliding rods respectively, the lifting block is threadedly connected to the screw rods, and a water spray assembly for cleaning the soft brush block is arranged at the bottom of the mounting column.

[0010] Preferably, a partition is fixedly connected to the bottom of the ventilation box, and a gap is opened on the inner side of the partition for the soft brush block to pass through. An air inlet pipe is fixedly connected to one side of the ventilation box, and a dust detector is fixedly installed on the air inlet pipe. An air outlet pipe is fixedly connected to the other side of the ventilation box, and an explosion-proof fan is installed in the air outlet pipe.

[0011] Preferably, the water storage mechanism includes a water tank, which is fixedly connected to the bottom of the partition, with a filter fixedly installed inside the water tank, a water inlet pipe and a drain pipe fixedly installed on the rear side of the water tank, a top cover fixedly connected to the inside of the water tank, a plurality of water leakage holes opened in the top cover, and a vertical plate fixedly connected to the top cover.

[0012] Preferably, the water spray assembly includes a water supply pipe, which is fixedly connected in the top cover, on which a water pump is fixedly installed, and whose outlet end is fixedly connected in the vertical plate and leads to the bottom of the mounting column, and whose outlet end is fixedly connected to a spray head.

[0013] Preferably, a cover plate is detachably connected to the top of the movable cabinet, a fixing plate is fixedly connected to the top of the movable cabinet, a motor is fixedly connected to the top of the fixing plate, and a screw rod passes through the fixing plate and is fixedly connected to the output end of the motor.

[0014] Preferably, a plurality of universal wheels are rotatably mounted on the bottom of the mobile cabinet.

[0015] The beneficial effect is that: a filtering mechanism and a cleaning mechanism are set. During long-term ventilation, dust sticks to the surface of the filter frame. The lifting block that moves up and down is used to drive the soft-bristle brush block to move. While the soft-bristle brush block cleans the dust on the surface of the filter frame, the impact head collides with the raised head, thereby better removing the dust on the surface of the filter frame, effectively preventing the filter frame from being blocked and improving the ventilation effect.

[0016] The additional technical features and advantages of the present invention will be more clearly explained in the following description, or can be understood through the specific practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention, but do not constitute a limitation to the present invention. In the accompanying drawings:

[0018] Figure 1 It is a schematic diagram of a dust explosion-proof ventilation device described in the utility model;

[0019] Figure 2 It is a front cross-sectional view of a dust explosion-proof ventilation device according to the utility model;

[0020] Figure 3 It is a schematic diagram of the interior of a ventilation box of a dust explosion-proof ventilation device described in the utility model;

[0021] Figure 4 It is a schematic diagram of the positions of the filtering mechanism and the cleaning mechanism of a dust explosion-proof ventilation device described in the utility model;

[0022] Figure 5 It is a schematic diagram of a cleaning mechanism of a dust explosion-proof ventilation device described in the utility model;

[0023] Figure 6 It is a schematic diagram of a filtering mechanism of a dust explosion-proof ventilation device described in the utility model;

[0024] Figure 7 The utility model is a schematic diagram of the relative positions of a filtering mechanism and a cleaning mechanism of a dust explosion-proof ventilation device.

[0025] The reference numerals are as follows: 1. mobile cabinet; 101. cover plate; 102. fixed plate; 103. universal wheel; 2. ventilation mechanism; 201. ventilation box; 202. partition; 203. air inlet pipe; 204. dust detector; 205. air outlet pipe; 206. explosion-proof fan; 3. water storage mechanism; 301. water storage tank; 302. filter screen; 303. water inlet pipe; 304. drain pipe; 305. top cover; 306. drain Water hole; 307, vertical plate; 4, filtering mechanism; 401, connecting plate; 402, spring; 403, top plate; 404, limit plate; 405, filter frame; 406, raised head; 5, cleaning mechanism; 501, mounting column; 502, screw rod; 503, sliding rod; 504, lifting block; 505, soft brush block; 506, impact head; 507, motor; 508, water supply pipe; 509, water pump; 510, nozzle. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0028] The utility model is further described below in conjunction with the accompanying drawings:

[0029] like Figure 1 — Figure 7 As shown, a dust explosion-proof ventilation device comprises a mobile cabinet 1, a ventilation mechanism 2 is arranged on the top of the mobile cabinet 1, a water storage mechanism 3 is arranged on the bottom of the mobile cabinet 1, a filtering mechanism 4 is arranged in the ventilation mechanism 2, a cleaning mechanism 5 is installed in the mobile cabinet 1, a cover plate 101 is connected to the top of the mobile cabinet 1 by quick-release bolts, a fixing plate 102 is connected to the top of the mobile cabinet 1 by bolts, and a plurality of universal wheels 103 are rotatably installed on the bottom of the mobile cabinet 1, and the device can be conveniently moved to various ventilation positions through the universal wheels 103, so as to be flexible in use.

[0030] In this embodiment, the ventilation mechanism 2 includes a ventilation box 201, a partition 202 is welded at the bottom of the ventilation box 201, a certain gap is opened on the inner side of the partition 202, an air inlet pipe 203 is welded on one side of the ventilation box 201, a dust detector 204 is fixedly installed on the air inlet pipe 203, an air outlet pipe 205 is welded on the other side of the ventilation box 201, an explosion-proof fan 206 is installed in the air outlet pipe 205, the ventilation box 201 is located at the upper part of the mobile cabinet 1, and an interface for installing a bellows is provided at the position of the air inlet pipe 203. The use of bellows can further extend the installation height, which is suitable for a variety of usage scenarios. When the explosion-proof fan 206 is started, a negative pressure can be formed in the ventilation box 201, thereby sucking in dust and air at the position of the air inlet pipe 203 to achieve a ventilation effect.

[0031] In this embodiment, the water storage mechanism 3 includes a water tank 301, which is connected to the bottom of the partition 202 by bolts. A filter screen 302 is fixedly installed inside the water tank 301, and a water inlet pipe 303 and a drain pipe 304 are fixedly installed on the rear side of the water tank 301. A top cover 305 is welded inside the water tank 301, and a plurality of leakage holes 306 are opened in the top cover 305. A vertical plate 307 is connected to the top cover 305 by bolts. The water storage mechanism 3 can be used to supply water for cleaning the cleaning mechanism 5. The sewage generated by cleaning leaks through the leakage holes 306, and the filter screen 302 can filter out the debris after cleaning.

[0032] In this embodiment, the filtering mechanism 4 includes a connecting plate 401, which is connected to the inner walls of the ventilation box 201 on both sides by bolts. A spring 402 is fixedly connected to one side of the connecting plate 401, and a top plate 403 is fixedly connected to one end of the spring 402. The inner walls of the ventilation box 201 on both sides are connected with a limiting plate 404 by bolts. The limiting plate 404 cooperates with the top plate 403 to limit the filter frame 405. A filter frame 405 for filtering dust is provided on one side of the top plate 403. A plurality of protrusions 406 are welded on the side of the filter frame 405 away from the top plate 403. The cover plate 101 is removed, and the filter frame 405 can be easily installed. The filter frame 405 is aligned with the gap between the limiting plate 404 and the top plate 403 to complete the installation. The limiting plate 404 and the top plate 403 jointly flexibly clamp the filter frame 405, and the spring 402 can provide a certain thrust to ensure that the filter frame 405 remains stable during ventilation.

[0033] In this embodiment, the cleaning mechanism 5 includes a mounting column 501, which is connected to the inner walls of the ventilation box 201 on both sides by bolts, and the two mounting columns 501 are rotatably connected with a screw rod 502 and a slide rod 503 respectively, a lifting block 504 is threadedly connected to the screw rod 502, and a lifting block 504 is sleeved on the slide rod 503. The inner sides of the two lifting blocks 504 are connected by bolts with a soft brush block 505 for cleaning the filter frame 405, and a collision head 506 is welded on one side of the lifting block 504. The top of the fixed plate 102 is connected by a screw rod 502. The motor 507 is connected by bolts, the screw rod 502 passes through the fixing plate 102 and is connected to the output end of the motor 507 through a coupling, and a water spray assembly for cleaning the soft brush block 505 is arranged at the bottom of the mounting column 501. The water spray assembly includes a water supply pipe 508, which is plugged into the top cover 305, and a water pump 509 is fixedly installed on the water supply pipe 508. The water outlet end of the water supply pipe 508 is plugged into the vertical plate 307 and leads to the bottom of the mounting column 501. A nozzle 510 is welded at the water outlet end of the water supply pipe 508. During long-term use, more and more dust adheres to the surface of the filter frame 405, resulting in a decrease in ventilation effect and an increase in dust content, which will cause the index of the dust detector 204 to rise. At this time, the motor 507 is started, and the motor 507 drives the screw rod 502 to rotate. The screw rod 502 drives the lifting block 504 to rise from the bottom position of the installation column 501. The lifting block 504 drives the soft brush block 505 and the impact head 506 to rise synchronously. The soft brush block 505 cleans the dust-stained surface of the filter frame 405, and the impact head 506 repeatedly collides with the filter frame 405. A plurality of raised heads 406 cause the raised heads 406 to vibrate, effectively improving the dust cleaning effect on the surface of the filter frame 405. After the cleaning is completed, the soft-bristle brush block 505 returns to the bottom position of the mounting column 501, and the water in the water tank 301 is pumped into the water supply pipe 508 by a water pump 509, and sprayed out through the nozzle 510 to flush the soft-bristle brush block 505. The flushed sewage and dust enter the water tank 301 through the leakage hole 306, and the filter screen 302 can filter the dust to prevent the water supply pipe 508 from being blocked.

[0034] Working principle: When the device is in use, the staff moves the cabinet 1 to a suitable ventilation position, connects the air inlet pipe 203 with the dust exhaust port, then opens the cover 101, and aligns the clean filter frame 405 with the gap between the limit plate 404 and the top plate 403, and the installation is completed. The limit plate 404 and the top plate 403 jointly limit the filter frame 405, and the spring 402 can provide a certain thrust to ensure that the filter frame 405 remains stable during ventilation. Turn on the explosion-proof fan 206 in the air outlet pipe 205. When the explosion-proof fan 206 is started, a negative pressure can be formed in the ventilation box 201, thereby sucking in the dust and air at the position of the air inlet pipe 203 to achieve a ventilation effect. During long-term use, more and more dust will stick to the surface of the filter frame 405, resulting in a decrease in ventilation effect and an increase in dust content, which will cause the index of the dust detector 204 to rise. At this time, start The motor 507 drives the screw rod 502 to rotate, and the screw rod 502 drives the lifting block 504 to rise from the bottom position of the installation column 501. The lifting block 504 drives the soft brush block 505 and the impact head 506 to rise synchronously, and the soft brush block 505 cleans the surface of the filter frame 405 contaminated with dust. At the same time, the impact head 506 repeatedly collides with a plurality of protrusions 406, so that the protrusions 406 vibrate, effectively improving the dust cleaning effect on the surface of the filter frame 405. After the cleaning is completed, the soft brush block 505 returns to the bottom position of the installation column 501, and the water pump 509 is used to pump the water in the water storage tank 301 into the water supply pipe 508, and spray it through the nozzle 510 to rinse the soft brush block 505. The sewage and dust flushed enter the water storage tank 301 through the leakage hole 306, and the filter screen 302 can filter the dust to prevent the water supply pipe 508 from being blocked.

[0035] The above shows and describes the basic principles, main features and 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 principles 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 dust explosion-proof ventilation device, comprising a mobile cabinet, a ventilation mechanism is arranged on the top of the mobile cabinet, and the ventilation mechanism comprises a ventilation box, characterized in that: A water storage mechanism is provided at the bottom of the mobile cabinet, a filtering mechanism is provided in the ventilation mechanism, a cleaning mechanism is installed in the mobile cabinet, the filtering mechanism includes a connecting plate, the connecting plate is fixedly connected to the inner walls on both sides of the ventilation box, a spring is fixedly connected to one side of the connecting plate, one end of the spring is fixedly connected to a top plate, a filter frame for filtering dust is provided on one side of the top plate, and a plurality of protrusions are fixedly connected to the side of the filter frame away from the top plate; The cleaning mechanism comprises two symmetrically arranged lifting blocks, the inner side of the lifting blocks is fixedly connected with a soft brush block for cleaning the filter frame, and one side of the lifting blocks is fixedly connected with an impact head.

2. A dust explosion-proof ventilation device according to claim 1, characterized in that: The inner walls on both sides of the ventilation box are fixedly connected with limiting plates, and the limiting plates cooperate with the top plate to limit the filter frame.

3. The dust explosion-proof ventilation device according to claim 1, characterized in that: The cleaning mechanism includes mounting columns, which are fixedly connected to the inner walls on both sides of the ventilation box. The two mounting columns are rotatably connected to screw rods and sliding rods respectively. The lifting block is threadedly connected to the screw rods. A water spray assembly for cleaning the soft brush block is arranged at the bottom of the mounting column.

4. The dust explosion-proof ventilation device according to claim 3, characterized in that: A partition is fixedly connected to the bottom of the ventilation box, and a gap is opened on the inner side of the partition for the soft brush block to pass through. An air inlet pipe is fixedly connected to one side of the ventilation box, and a dust detector is fixedly installed on the air inlet pipe. An air outlet pipe is fixedly connected to the other side of the ventilation box, and an explosion-proof fan is installed in the air outlet pipe.

5. The dust explosion-proof ventilation device according to claim 4, characterized in that: The water storage mechanism includes a water tank, which is fixedly connected to the bottom of the partition, with a filter fixedly installed inside the water tank, a water inlet pipe and a drain pipe fixedly installed on the rear side of the water tank, a top cover fixedly connected to the inside of the water tank, a plurality of water leakage holes opened in the top cover, and a vertical plate fixedly connected to the top cover.

6. A dust explosion-proof ventilation device according to claim 5, characterized in that: The water spray assembly includes a water supply pipe, which is fixedly connected in the top cover, and a water pump is fixedly installed on the water supply pipe. The water outlet end of the water supply pipe is fixedly connected in the vertical plate and leads to the bottom of the installation column, and the water outlet end of the water supply pipe is fixedly connected to a spray head.

7. The dust explosion-proof ventilation device according to claim 3, characterized in that: The top of the movable cabinet is detachably connected with a cover plate, the top of the movable cabinet is fixedly connected with a fixing plate, the top of the fixing plate is fixedly connected with a motor, and the lead screw passes through the fixing plate and is fixedly connected with the output end of the motor.

8. The dust explosion-proof ventilation device according to claim 1, characterized in that: A plurality of universal wheels are rotatably mounted on the bottom of the movable cabinet.

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