Wet-type anti-explosion dust remover

Abstract

The utility model discloses a wet-type anti-explosion dust remover which comprises a base and a box body arranged on the base, a flange frame is arranged on the box body, and an anti-explosion fan and an outer cover arranged on the outer side of the anti-explosion fan in a covering mode are arranged on the flange frame. A plurality of layers of filters are integrated on the flange frame, a combined air inlet box and a venturi tube arranged on the combined air inlet box are mounted on the box body, and the venturi tube is used for introducing dust-removed gas; a water outlet is formed in the bottom of the box body, a spraying head is arranged at an inlet of the Venturi tube, a water pump is installed on the base, an inlet of the water pump is connected with the water outlet, and an outlet of the water pump is connected with the spraying head. A differential pressure gauge for detecting the differential pressure between the inflow end and the outflow end of the multi-layer filter is mounted on the box body, and a power switch box connected with the water pump and the anti-explosion fan is further arranged on the box body; the overall size is effectively reduced, dust falling and filtering are integrated for continuous dynamic operation, and the dust removal efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal, in particular to a wet explosion-proof dust collector. Background Art

[0002] The direct emission of dust and particulate matter generated in the industrial production process will not only pollute the environment, but also affect the normal operation of production equipment and the health of workers. The waste gas generated in the production process contains impurities, dust, etc., which need to be dust-removed and filtered by a dust removal device before being discharged.

[0003] Generally used industrial dust removal equipment has emerged, including dry dust collectors and wet dust collectors. Among them, the wet dust collector is commonly known as a "demister". It is a device that makes the dust-containing gas come into close contact with a liquid (usually water), and uses the inertial collision of water droplets and particles or the full mixing effect of water and dust and other effects to capture particles or make the particles larger or stay in a fixed container to achieve the separation effect of water and dust. For the dust generated in the machining process of aluminum and magnesium products, due to its strong explosion characteristics, using a dry dust collector has a greater probability of dust explosion and poses a greater danger.

[0004] Therefore, in the existing wet dust collectors, the dust reduction and filtration are carried out separately, resulting in an increase in the volume of the entire device and the presence of gas with insufficient dust reduction, leading to a low dust reduction efficiency. Summary of the Utility Model

[0005] (I) Technical Problem

[0006] The purpose of the utility model is to provide a wet explosion-proof dust collector to solve the problem that the existing wet dust collector operates independently with a separate structure for dust reduction and filtration, which may result in insufficient dust reduction and an increase in the volume of the entire device.

[0007] (II) Technical Solution

[0008] To achieve the above purpose, the utility model provides the following technical solution:

[0009] A wet explosion-proof dust collector, comprising a base and a box body installed on the base, a flange frame is provided on the box body, an explosion-proof fan and an outer cover covering the outside of the explosion-proof fan are installed on the flange frame; a multi-layer filter is integrated on the flange frame, a combined air inlet box is installed on the box body, and a Venturi tube is provided on the combined air inlet box for introducing the gas to be dusted; a water outlet is provided at the bottom of the box body, a spray head is provided at the inlet of the Venturi tube, a water pump is installed on the base, the inlet of the water pump is connected to the water outlet, and the outlet of the water pump is connected to the spray head; a differential pressure gauge for detecting the differential pressure between the inlet end and the outlet end of the multi-layer filter is installed on the box body, and a power switch box for connecting the water pump and the explosion-proof fan is also provided on the box body.

[0010] Preferably, the multi-layer filter includes a first filter cartridge support, a second filter cartridge support, a third filter cartridge support, and a fourth filter cartridge support sequentially installed on the flange frame, and a primary plate filter, a polypropylene plate filter, and a high-efficiency filter cloth are sequentially installed on the first filter cartridge support, the second filter cartridge support, the third filter cartridge support, and the fourth filter cartridge support.

[0011] Preferably, the water outlet is connected with a Y-type filter.

[0012] Preferably, the box body includes a first enclosing plate in a U shape, a second enclosing plate is installed at the open end of the first enclosing plate, an inclined guide plate is installed at the bottom of the first enclosing plate and the second enclosing plate, the water outlet is arranged at the low end of the guide plate, and the flange frame is installed on the top of the first enclosing plate and the second enclosing plate.

[0013] Preferably, a maintenance port corresponding to the multi-layer filter is installed on the first enclosing plate, and a sealing plate is provided on the maintenance port.

[0014] Preferably, an observation port is opened on the first enclosing plate below the maintenance port, and a perspective window is provided on the observation port.

[0015] Preferably, a water inlet is provided on the second enclosing plate below the combined air inlet box.

[0016] Preferably, the flange frame includes a first flange and a second flange connected in sequence, the multi-layer filter is connected to the first flange, a top cover plate is installed on the second flange, and the outer cover is installed on the top cover plate.

[0017] Preferably, reinforcing ribs for supporting the outer cover are provided at the edge position on the top cover plate, and a guide cylinder for connecting the inlet of the explosion-proof fan is provided on the top cover plate.

[0018] Preferably, a limiting frame which is arranged at intervals and used for adapting to a forklift is provided on the base.

[0019] (III) Advantageous Effects

[0020] The base, the box body and the outer cover are sequentially connected to form an integral structure, effectively reducing the volume of the entire device and improving the integration degree. The negative pressure of the Venturi tube accelerates the flow rate of the dust-removing gas entering, and at the same time enables the spray head to accelerate the contact with the dust-removing gas. After entering the box body, the dust-removing part follows the water flow and converges at the bottom of the box body, and is recycled by the water pump through the water outlet and transported to the spray head, thereby realizing the water circulation dust-removing process; due to the existence of atomization in the water flow entering the box body, the dust-removing gas can further come into full contact with the dust-removing gas in the box body, improving the dust-removing efficiency;

[0021] The suction force generated by the explosion-proof fan accelerates the dust-removing gas in the box body to pass through the multi-layer filter, blocking the dust in the box body and combining it with the entering wet gas, fully improving the dust-removing effect;

[0022] At the same time, a differential pressure gauge is used to detect the differential pressure before and after the multi-layer filter, facilitating timely understanding of the filtering effect of the multi-layer filter, timely replacement and treatment of the internal dust removal. The specific equipment startup is synchronously controlled by a power switch box, realizing the simultaneous start and stop control of the water circulation and the emptying power;

[0023] Explosion-proof fans and water pumps with explosion-proof performance are adopted, and the power switches and other electricity-related components are boxed, which can be used in an environment with explosion-proof requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional structural schematic diagram of an embodiment of the present utility model;

[0025] Figure 2 is a front view structural schematic diagram of an embodiment of the present utility model;

[0026] Figure 3 is an exploded structural schematic diagram of an embodiment of the present utility model;

[0027] In Figures 1 to 3 the correspondence between the component names or lines and the drawing reference numerals is as follows:

[0028] Base 1, Deflector 2, First Enclosure 3, Second Enclosure 4, First Filter Cartridge Bracket 5, Second Filter Cartridge Bracket 6, Third Filter Cartridge Bracket 7, Fourth Filter Cartridge Bracket 8, First Flange 9, Second Flange 10, Top Cover Plate 11, Mounting Seat 12, Reinforcing Rib 13, Combined Air Inlet Box 14, Venturi Tube 15, Outer Cover 16, Sealing Plate 17, Perspective Window 18, Water Outlet 19, Water Pump 20, Spray Head 21, Differential Pressure Gauge 22, Power Switch Box 23, Water Inlet 24, Limiting Frame 25. Detailed implementation mode

[0029] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0030] See Figures 1 - 3 As shown, in the embodiment of the present invention, a wet explosion-proof dust collector is proposed, which includes a base 1 and a box body installed on the base 1. A flange frame is provided on the box body, and an explosion-proof fan and an outer cover 16 covering the outside of the explosion-proof fan are installed on the flange frame. The outer cover 16 can protect the explosion-proof fan and support the explosion-proof fan, and the air power for pumping and discharging the gas inside the box body is accelerated after the explosion-proof fan is started. A multi-layer filter is integrated on the flange frame. A combined air inlet box 14 is installed on the box body, and a Venturi tube 15 is provided on the combined air inlet box 14. The Venturi tube 15 is used to introduce the gas to be dust-removed. First, the negative pressure of the Venturi tube 15 is used to accelerate the rapid inflow of external gas into the box body. At the same time, under the suction of the explosion-proof fan, the gas can be fully filtered in the multi-layer filter and the fluidity can be improved.

[0031] At the same time, a water outlet 19 is provided at the bottom of the box body. A spray head 21 is provided at the inlet of the Venturi tube 15. A water pump 20 is installed on the base 1. A mounting seat 12 is welded on the base 1 for installing the water pump 20. The inlet of the water pump 20 is connected to the water outlet 19, and the outlet of the water pump 20 is connected to the spray head 21. By circulating the water at the bottom of the box body and spraying it through the spray head 21 to the inlet of the Venturi tube 15, the gas entering the Venturi tube 15 is fully combined with water to achieve dust reduction. After entering the box body, a water mist is formed to combine with the dust blocked by the multi-layer filter and remaining in the box body again to improve the dust reduction effect. All the dust finally flows downward with the wet gas to the bottom of the box body for sedimentation and collection. During the sedimentation process at the bottom, the dust is separated from the water again, and the water is carried by the water pump 20 to form a water circulation dust reduction process.

[0032] Thus, after the gas enters, it undergoes a process of primary dust reduction, filtration, and repeated dust reduction to achieve a full dust reduction process, and the entire device forms an integrated structure with a small floor area.

[0033] Meanwhile, a differential pressure gauge 22 for detecting the differential pressure between the inlet end and the outlet end of the multi-layer filter is installed on the box body. A power switch box 23 connecting the water pump 20 and the explosion-proof fan is also provided on the box body. After detecting the differential pressure before and after the multi-layer filter through the differential pressure gauge 22, the clogging condition of the multi-layer filter can be known in time, and timely replacement is convenient for improving the filtering effect. The power switch box 23 is internally provided with a 24V switching power supply and a Schneider circuit breaker. Through shielding by the box body, and when both the water pump 20 and the explosion-proof motor meet the explosion-proof requirements, all live parts can meet the explosion-proof requirements, and the whole device is suitable for application in an environment with explosion-proof requirements.

[0034] After use, the wet dust will settle and gather at the bottom of the box body, and the settled dust will be processed in the shutdown state.

[0035] Specifically, the multi-layer filter is for achieving sufficient filtration, separating the dust sufficiently and completely settling the dust in the box body. Therefore, the filtering effect of the multi-layer filtration needs to be ensured. The multi-layer filter includes a first filter cartridge support 5, a second filter cartridge support 6, a third filter cartridge support 7, and a fourth filter cartridge support 8 sequentially installed on the flange frame. An initial effect plate filter, a polypropylene plate filter, and a high-efficiency filter cloth are sequentially installed on the first filter cartridge support 5, the second filter cartridge support 6, the third filter cartridge support 7, and the fourth filter cartridge support 8, specifically forming an upper and lower two-layer structure, and multiple parts separated left and right achieve filtration, and the plate structure is convenient for overall replacement.

[0036] Among them, the initial effect plate filter uses the product of Chenlan, the polypropylene plate filter uses the product of Donaldson, and the high-efficiency filter cloth uses the product of Toray. After the three layers are stacked in sequence, they are fixed on the first filter cartridge support 5, the second filter cartridge support 6, the third filter cartridge support 7, and the fourth filter cartridge support 8 to form the overall structure of the filter with three-layer filtration.

[0037] Meanwhile, since dust settles at the bottom of the box body, the water outlet 19 needs to be filtered. Specifically, a Y-type filter is connected to the water outlet 19.

[0038] Specifically, the box body includes a first enclosing plate 3 in a U shape. A second enclosing plate 4 is installed at the open end of the first enclosing plate 3. An inclined deflector plate 2 is installed at the bottom of the first enclosing plate 3 and the second enclosing plate 4. The water outlet 19 is arranged at the lower end of the deflector plate 2. The flange frame is installed at the top of the first enclosing plate 3 and the second enclosing plate 4. The whole box body is a split assembly structure composed of the first enclosing plate 3 and the second enclosing plate 4, which is convenient for disassembling during processing and maintenance. At the same time, the inclined deflector plate 2 at the bottom realizes water flow diversion and dust sedimentation collection and guidance. The flange frame realizes fixed connection to the top connection part of the box body, improving the structural stability of the box body. When specifically dealing with the collected dust in the interior, it can be carried out by disassembling the first enclosing plate 3 or the deflector plate 2, or other methods can also be used, but the detachable parts need to have good sealing and mating performance.

[0039] Among them, a maintenance port corresponding to the multi-layer filter is installed on the first enclosing plate 3. A sealing plate 17 is arranged on the maintenance port. The multi-layer filter is replaced through the maintenance port, and the sealing plate 17 ensures the sealing of the maintenance port.

[0040] At the same time, an observation port is opened on the first enclosing plate 3 below the maintenance port. A perspective window 18 is arranged on the observation port. Through the perspective window 18, it is convenient to see the situation inside the box body, such as the accumulation amount of dust deposition, etc., which is convenient for timely corresponding viewing and operation.

[0041] Specifically, a water inlet 24 is arranged on the second enclosing plate 4 below the combined air inlet box 14. Both the water inlet 24 and the water outlet 19 are threaded pipe joints, which are convenient for quick connection. The water inlet 24 is used for injecting water or cleaning inward.

[0042] Specifically, the flange frame includes a first flange 9 and a second flange 10 connected in sequence. The multi-layer filter is connected to the first flange 9. A top cover plate 11 is installed on the second flange 10. The outer cover 16 is installed on the top cover plate 11. The outer cover 16 at the top is installed on the box body by using the first flange 9 and the second flange 10 respectively, and at the same time, the multi-layer filter inside is installed and supported. After the top cover plate 11 is connected to the second flange 10, the connection structural stability between the outer cover 16 and the box body is improved.

[0043] At the same time, a reinforcing rib 13 for supporting the outer cover 16 is arranged on the top cover plate 11 at the edge position. A guide cylinder connecting the inlet of the explosion-proof fan is arranged on the top cover plate 11. The supporting strength of the top cover plate 11 is increased through the reinforcing rib 13, and at the same time, a limit support can be formed on the inner wall of the outer cover 16. The guide cylinder is used to increase the air pressure entering the explosion-proof fan and accelerate the flow rate.

[0044] For the convenience of lifting and transporting the entire device, a limit frame 25 for adapting to a forklift is provided on the base 1. There are a total of four limit frames 25, which are arranged in pairs front and back, facilitating the forklift to extend in for limiting and performing the lifting operation.

[0045] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0046] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of this utility model is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model. In addition, terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0047] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the present utility model, the present utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to include all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A wet explosion-proof dust collector, characterized in that: It includes a base and a box body installed on the base. A flange frame is provided on the box body, and an explosion-proof fan and an outer cover covering the outside of the explosion-proof fan are installed on the flange frame; A multi-layer filter is integrated on the flange frame. A combined air inlet box is installed on the box body, and a Venturi tube is provided on the combined air inlet box for introducing the gas to be dedusted; A water outlet is provided at the bottom of the box body. A spray head is provided at the inlet of the Venturi tube. A water pump is installed on the base. The inlet of the water pump is connected to the water outlet, and the outlet of the water pump is connected to the spray head; A differential pressure gauge for detecting the differential pressure between the inlet end and the outlet end of the multi-layer filter is installed on the box body. A power switch box for connecting the water pump and the explosion-proof fan is also provided on the box body.

2. The wet explosion-proof dust collector according to claim 1, characterized in that: The multi-layer filter includes a first filter cartridge support, a second filter cartridge support, a third filter cartridge support, and a fourth filter cartridge support sequentially installed on the flange frame. An initial effect plate filter, a polypropylene plate filter, and a high-efficiency filter cloth are sequentially installed on the first filter cartridge support, the second filter cartridge support, the third filter cartridge support, and the fourth filter cartridge support.

3. The wet explosion-proof dust collector according to claim 2, characterized in that: The water outlet is connected to a Y-type filter.

4. The wet explosion-proof dust collector according to claim 3, wherein: The box body includes a U-shaped first enclosing plate. The open end of the first enclosing plate is installed with a second enclosing plate. An inclined deflector is installed at the bottom of the first enclosing plate and the second enclosing plate. The water outlet is provided at the lower end of the deflector. The flange frame is installed on the top of the first enclosing plate and the second enclosing plate.

5. The wet explosion-proof dust collector according to claim 4, wherein: An inspection opening corresponding to the multi-layer filter is installed on the first enclosing plate, and a sealing plate is provided on the inspection opening.

6. The wet explosion-proof dust collector according to claim 5, characterized in that: An observation opening is formed on the first enclosing plate below the inspection opening, and a perspective window is provided on the observation opening.

7. The wet explosion-proof dust collector according to claim 4, characterized in that: A water inlet is provided on the second enclosing plate below the combined air inlet box.

8. A wet explosion-proof dust collector according to any one of claims 1-7, characterized in that: The flange frame includes a first flange and a second flange connected in sequence. The multi-layer filter is connected to the first flange, a top cover plate is installed on the second flange, and the outer cover is installed on the top cover plate.

9. The wet explosion-proof dust collector according to claim 8, characterized in that: Reinforcing ribs for supporting the outer cover are provided at the edge position on the top cover plate, and a flow guide cylinder connecting the inlet of the explosion-proof fan is provided on the top cover plate.

10. The wet explosion-proof dust collector according to claim 8, wherein: Limit frames for adapting to forklifts are provided on the base at intervals.

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