Front efficient dust filtering device for waste gas treatment

Abstract

The utility model relates to the technical field of waste gas treatment, and discloses a front efficient dust filtering device for waste gas treatment, which comprises a filtering tank, a rotating shaft is rotatably arranged in the filtering tank and is driven by a motor fixedly arranged on the filtering tank, a plurality of filter screen plates are detachably arranged on the side wall of the rotating shaft, and a separating tank is arranged on one side of the filtering tank. The separation tank is communicated with the upper end of the filtering tank through a communicating pipe, a spraying frame is fixedly arranged in the separation tank, nozzles in different directions are arranged on the spraying frame and are communicated with a water inlet pipe fixedly arranged on the spraying frame, one end of the water inlet pipe extends out of the separation tank, and an air exhaust structure is arranged at the upper end of the separation tank. The device has the advantages that the replacement period of the dust filter screen is prolonged, water-soluble waste gas and water-insoluble waste gas can be directly separated and respectively treated at the same time, and the treatment efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of waste gas treatment, in particular to a high-efficiency dust filtering device for waste gas treatment. Background Art

[0002] Dust filtration is essential before exhaust gas treatment. First, dust particles in exhaust gas can clog subsequent treatment equipment, affecting its normal operation and service life. Second, dust can chemically react with certain components in the exhaust gas, producing new pollutants and increasing the difficulty of treatment. Furthermore, dust removal improves the efficiency and effectiveness of exhaust gas treatment, ensuring that treated exhaust gas meets emission standards.

[0003] Currently, in the exhaust gas treatment process, dust filtration devices mostly take the form of filter screens. However, in actual use, in pursuit of higher filtration effects, people often tend to choose denser filter screens. While this approach improves filtration performance to a certain extent, it also brings significant disadvantages. Dense dust screens are more easily clogged by dust particles, which requires frequent replacement and cleaning. Furthermore, the water-soluble portion of the exhaust gas is easier to dissolve in water and can be treated separately from the water-insoluble portion. However, current waste gas treatment methods for this type of exhaust gas mostly use segmented processing, which requires a longer treatment cycle. Utility Model Content

[0004] In order to solve the above-mentioned problems, the utility model proposes a waste gas treatment pre-high efficiency dust filter device which prolongs the replacement cycle of the dust filter, can directly separate the waste gas soluble in water and the waste gas insoluble in water and treat them separately at the same time, and has high treatment efficiency.

[0005] In order to solve the above-mentioned technical problems, the technical solution proposed by the utility model is: a high-efficiency dust filtering device for pre-treatment of exhaust gas, including a filter tank, a rotating shaft is provided in the filter tank, the rotating shaft is driven by a motor fixed on the filter tank, and a number of filter mesh plates are detachably provided on the side wall of the rotating shaft, a separation tank is provided on one side of the filter tank, the separation tank is connected with the upper end of the filter tank through a connecting pipe, a spray rack is fixed in the separation tank, and nozzles with different directions are provided on the spray rack, the nozzles are connected with a water inlet pipe fixed on the spray rack, one end of the water inlet pipe extends out of the separation tank, and an air extraction structure is provided on the upper end of the separation tank.

[0006] Furthermore, an air inlet pipe is provided at the lower end of one side of the filter tank, the lower end of the filter tank is bucket-shaped, a switch-controllable dust outlet is provided at the center of the lower end of the filter tank, and a sealing cover is detachably provided at the upper end of the filter tank by a number of bolts.

[0007] Based on these features, the filter tank has a bucket-shaped lower end and a central, switchable dust outlet, conveniently collecting and discharging accumulated dust. The removable sealing cover facilitates inspection, repair, and replacement of components such as the filter screen and shaft within the tank, enhancing the device's maintainability.

[0008] Furthermore, the rotating shaft is arranged along the diameter of the filter tank and has the same length as the diameter of the filter tank. The filter screen plate is evenly spaced around the rotating shaft. The filter screen plate is a semicircular plate with the same radius as the inner radius of the filter tank. The end of the side wall of the rotating shaft is fixed with a U-shaped clip that matches the filter screen plate. The edges at both ends of the filter screen plate are clipped into the U-shaped clip and fixedly connected to the U-shaped clip by screws.

[0009] Based on these features, the filter plate is designed to fit the shape of the filter tank, allowing it to fully cover the cross-section of the filter tank, maximizing the filtration area and enhancing the filtration effect. The filter plate is fixed to the U-shaped clip with screws, making it easy to remove and replace.

[0010] Furthermore, a drain pipe is provided at the lower end of the separation tank.

[0011] Based on these features, water containing dissolved waste gas can be promptly discharged, preventing water accumulation in the separation tank and affecting the waste gas treatment effect. At the same time, the separate discharge of water containing dissolved waste gas for subsequent treatment also facilitates the separate treatment of different types of waste gas, improving the targetedness and efficiency of treatment.

[0012] Furthermore, the spray rack includes a support plate fixed in the separation tank, and a number of branch pipes connected to the water inlet pipe are provided on both sides of the support plate. The directions of the branch pipes are different and the ends are arranged close to the inner wall of the separation tank. Each branch pipe is evenly distributed with a number of nozzles connected thereto, and the directions of the nozzles on each branch pipe are different.

[0013] Based on the above characteristics, such a design can make the water mist form a multi-angle and all-round spraying effect in the separation tank, increase the contact area and contact time between the exhaust gas and the water mist, and improve the exhaust gas treatment efficiency and separation effect.

[0014] Furthermore, the air extraction structure includes an air extraction pump fixedly arranged above the separation tank and an exhaust pipe fixedly arranged on one side of the air extraction pump.

[0015] Based on the above features, the vacuum pump can promptly discharge the treated waste gas from the separation tank, preventing waste gas accumulation in the separation tank, ensuring the continuous operation and treatment efficiency of the device. The exhaust pipe provides a discharge channel for the treated waste gas, allowing the waste gas to be smoothly discharged from the device for subsequent treatment or discharge.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] Extend the replacement cycle of the dust filter: A rotating shaft driven by a motor is set in the filter tank, and several filter plates are detachably provided on the side wall of the rotating shaft. Multiple filter plates perform dust filtering work at the same time under the drive of the motor, and play the role of dust filtering alternately, which can effectively reduce the burden of a single filter plate and help to increase the effective filtering time of the filter plate. The continuous rotation of the filter plate also avoids excessive accumulation of dust in a fixed area to cause blockage, thereby extending the service life of the dust filter and reducing the replacement cycle.

[0018] It can directly separate water-soluble and water-insoluble waste gases and treat them separately at the same time, with high treatment efficiency: a spray rack is fixed inside the separation tank, and the spray rack is equipped with nozzles with different directions, which are connected to the water inlet pipe. This design allows water to be sprayed evenly inside the separation tank, fully contacting the waste gas, thereby discharging water-soluble impurities in the waste gas along with the water through the drain pipe at the lower end. At the same time, the exhaust mechanism can extract the water-insoluble waste gas distributed at the upper end of the separation tank from the upper end. The water-soluble and water-insoluble gases can enter the corresponding next treatment process for treatment at the same time, avoiding the cumbersome procedure of separate treatment one by one, which is conducive to improving treatment efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of the utility model;

[0020] Figure 2 It is the main view of the utility model;

[0021] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0022] Figure 4 It is a top view of the internal structure of the utility model.

[0023] As shown in the figure: 1. Filter tank; 2. Rotating shaft; 3. Motor; 4. Filter screen; 5. Separation tank; 6. Connecting pipe; 7. Nozzle; 8. Water inlet pipe; 9. Dust outlet; 10. Sealing cover; 11. U-shaped buckle; 12. Drain pipe; 13. Support plate; 14. Branch pipe; 15. Vacuum pump; 16. Exhaust pipe; 17. Inlet pipe. DETAILED DESCRIPTION

[0024] The present invention will be described in further detail below with reference to the accompanying drawings.

[0025] Combined with attachment Figure 3 , Attachment Figure 4, a high-efficiency dust filtering device for pre-treatment of exhaust gas, comprising a filter tank 1, wherein a rotating shaft 2 is provided in the filter tank 1 for rotation, and the rotating shaft 2 is driven by a motor 3 fixed to the filter tank 1, and a plurality of filter screens 4 are detachably provided on the side wall of the rotating shaft 2, wherein the rotating shaft 2 is provided along the diameter of the filter tank 1 and has the same length as the diameter of the filter tank 1, and the filter screens 4 are evenly spaced around the rotating shaft 2, and the filter screens 4 are semicircular plates with the same radius as the inner radius of the filter tank 1. The filter screens 4 are designed to fit the shape of the filter tank 1 so that the filter screens 4 can fully cover the cross section of the filter tank 1, thereby maximizing the filtration area and enhancing the filtration effect. A U-shaped buckle 11 is fixed at the end of the side wall of the rotating shaft 2 to match the filter screen 4, and the edges at both ends of the filter screen 4 are snap-fitted into the U-shaped buckle 11 and fixedly connected to the U-shaped buckle 11 by screws, and the filter screen 4 is fixed to the U-shaped buckle 11 by screws, which is convenient for disassembly and replacement.

[0026] Combined with attachment Figure 1 , Attachment Figure 2 The filter tank 1 is provided with an air inlet pipe 17 at the lower end of one side. The lower end of the filter tank 1 is bucket-shaped, and a switchable dust outlet 9 is provided at the center of the lower end of the filter tank 1 to facilitate the collection and discharge of dust accumulated in the filter tank 1, making operation convenient. The upper end of the filter tank 1 is provided with a sealing cover plate 10 that is detachable by a number of bolts. The detachable sealing cover plate 10 facilitates the inspection, maintenance, and replacement of components such as the filter screen plate 4 and the rotating shaft 2 inside the filter tank 1, thereby improving the maintainability of the device.

[0027] Combined with attachment Figure 2 A separation tank 5 is provided on one side of the filter tank 1. A drain pipe 12 is provided at the lower end of the separation tank 5 to promptly discharge water containing dissolved waste gas, thereby preventing water from accumulating in the separation tank 5 and affecting the waste gas treatment effect. Furthermore, discharging the water containing dissolved waste gas separately for subsequent treatment is also beneficial for treating different types of waste gas separately, thereby improving the pertinence and efficiency of the treatment.

[0028] Combined with attachment Figure 3 , Attachment Figure 4 The separation tank 5 is connected with the upper end of the filter tank 1 through a connecting pipe 6. A spray rack is fixedly provided in the separation tank 5, and the spray rack is provided with nozzles 7 with different directions. The nozzles 7 are connected with a water inlet pipe 8 fixed on the spray rack. One end of the water inlet pipe 8 extends out of the separation tank 5. The spray rack includes a support plate 13 fixed in the separation tank 5. A plurality of branch pipes 14 connected with the water inlet pipe 8 are provided on both sides of the support plate 13. The branch pipes 14 have different directions and the ends are arranged close to the inner wall of the separation tank 5. A plurality of nozzles 7 connected thereto are evenly distributed on each branch pipe 14, and the nozzles 7 on each branch pipe 14 have different directions. Such a design can make the water mist form a multi-angle and all-round spraying effect in the separation tank 5, increase the contact area and contact time between the exhaust gas and the water mist, and improve the exhaust gas treatment efficiency and separation effect.

[0029] Combined with attachment Figure 1 , Attachment Figure 2 The upper end of the separation tank 5 is provided with an exhaust structure. The exhaust structure includes an exhaust pump 15 fixedly mounted above the separation tank 5 and an exhaust pipe 16 fixedly mounted on one side of the exhaust pump 15. The exhaust pump 15 can promptly discharge the treated waste gas from the separation tank 5, preventing waste gas accumulation within the separation tank 5 and ensuring the continuous operation and treatment efficiency of the device. The exhaust pipe 16 provides a discharge channel for the treated waste gas, allowing the waste gas to be smoothly discharged from the device for subsequent treatment or discharge.

[0030] The specific implementation method of the utility model is as follows: connect the device to an external power supply, seal the air inlet pipe 17 with the exhaust gas outlet, connect the water inlet pipe 8 to an external water source, and the exhaust gas enters the filter tank 1 through the air inlet pipe 17. Turn on the motor 3, the motor 3 drives the rotating shaft 2 to rotate, and the filter screen 4 rotates with the rotating shaft 2. The exhaust gas moves upward through the filter screen 4 to filter the dust. The dust is blocked under the filter screen 4 and falls and accumulates at the lower end of the filter tank 1. As the exhaust gas continues to be introduced, the filter screen 4 rotates to realize that a single filter screen 4 performs dust filtering work intermittently in turn, and as the filter As the angle of the mesh plate 4 changes, some of the dust attached to the filter mesh plate 4 will fall down, effectively avoiding clogging of the filter mesh plate 4. During the process, the speed of the motor 3 can be controlled to regulate the rotation of the filter mesh plate 4, so that it can not only effectively filter the exhaust gas, but also minimize the probability of the exhaust gas passing directly through the gap between it and the inner wall of the filter tank 1, ensuring that the exhaust gas is fully filtered to a large extent. After the exhaust gas treatment is completed, the dust outlet 9 is opened to discharge the filtered dust. The sealing cover 10 can also be opened regularly, and the filter mesh plate 4 can be removed from the U-shaped buckle 11 for cleaning and replacement.

[0031] The exhaust gas filtered by the filter plate 4 enters the separation tank 5 through the connecting pipe 6, and the external water source switch is turned on. The water enters the branch pipes 14 through the water inlet pipe 8, and is finally sprayed in all directions through the nozzle 7 to mix with the exhaust gas. The water-soluble gas in the exhaust gas and some water-soluble dust that has not been completely filtered are mixed in the water and discharged through the drain pipe 12 to enter the next treatment process. At the same time, the air pump 15 is turned on, and the water-insoluble gas is discharged to the next treatment process through the exhaust pipe 16 under the action of the air pump 15, thereby realizing the separation and synchronous treatment of the exhaust gas, and the treatment efficiency is high.

[0032] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meaning of the above terms in the present invention can be understood according to specific circumstances.

[0033] The above description of the present invention and its embodiments is non-limiting. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. In short, if a person skilled in the art is inspired by the above, and does not deviate from the purpose of the present invention, without inventive design, a structure and embodiment similar to the technical solution should fall within the scope of protection of the present invention.

Claims

1. A high-efficiency dust filter device for waste gas treatment, comprising a filter tank (1), characterized in that: A rotating shaft (2) is provided in the filter tank (1) for rotation, and the rotating shaft (2) is driven by a motor (3) fixed on the filter tank (1). A plurality of filter screens (4) are detachably provided on the side wall of the rotating shaft (2). A separation tank (5) is provided on one side of the filter tank (1). The separation tank (5) is connected to the upper end of the filter tank (1) through a connecting pipe (6). A spray rack is fixed in the separation tank (5). The spray rack is provided with nozzles (7) with different directions. The nozzles (7) are connected to a water inlet pipe (8) fixed on the spray rack. One end of the water inlet pipe (8) extends out of the separation tank (5). The upper end of the separation tank (5) is provided with an air extraction structure.

2. The exhaust gas treatment pre-high efficiency dust filter device according to claim 1, characterized in that: An air inlet pipe (17) is provided at the lower end of one side of the filter tank (1); the lower end of the filter tank (1) is bucket-shaped; a switchable dust outlet (9) is provided at the center of the lower end of the filter tank (1); and a sealing cover plate (10) is detachably provided at the upper end of the filter tank (1) via a plurality of bolts.

3. The high-efficiency dust filter device for exhaust gas treatment according to claim 1, characterized in that: The rotating shaft (2) is arranged along the diameter of the filter tank (1) and has the same length as the diameter of the filter tank (1); the filter screen plate (4) is evenly spaced around the rotating shaft (2); the filter screen plate (4) is a semicircular plate with a radius the same as the inner radius of the filter tank (1); a U-shaped buckle (11) that matches the filter screen plate (4) is fixedly provided at the end of the side wall of the rotating shaft (2); the edges of both ends of the filter screen plate (4) are clamped in the U-shaped buckle (11) and fixedly connected to the U-shaped buckle (11) by screws.

4. The high-efficiency dust filter device for exhaust gas treatment according to claim 1, characterized in that: A drain pipe (12) is provided at the lower end of the separation tank (5).

5. The high-efficiency dust filter device for exhaust gas treatment according to claim 1, characterized in that: The spray rack comprises a support plate (13) fixedly arranged in the separation tank (5), and a plurality of branch pipes (14) connected to the water inlet pipe (8) are arranged on both sides of the support plate (13). The branch pipes (14) have different directions and their ends are arranged close to the inner wall of the separation tank (5). A plurality of nozzles (7) connected thereto are evenly distributed on each branch pipe (14), and the nozzles (7) on each branch pipe (14) have different directions.

6. The high-efficiency dust filter device for exhaust gas treatment according to claim 1, characterized in that: The air extraction structure comprises an air extraction pump (15) fixedly arranged above the separation tank (5) and an exhaust pipe (16) fixedly arranged on one side of the air extraction pump (15).

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