Exhaust emission dust catching device

Abstract

The utility model relates to the field of dust catching, in particular to an exhaust emission dust catching device which comprises a water mist spraying mechanism for rotating water spraying, dust catching and dust falling, an exhaust fan, a water supply pipe and the like, compared with the prior art, the device disclosed by the utility model has the advantages that dust in airflow can be adsorbed on a wet object, the circulating dust is captured by utilizing water mist and a wet filter screen plate, and slurry and gas are separated by matching with the action of acting force, so that the dust in waste gas can be captured, and the dust in the waste gas can be recycled. And the efficient gas dust removal effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of dust capture, specifically to a dust capture device for exhaust gas emissions. Background Technology

[0002] In production and daily life, the exhaust gas emitted by many equipment and facilities contains a large amount of dust. When this dust is directly released into the atmosphere, it causes serious environmental pollution, including many substances that are harmful to the human body and endanger people's health.

[0003] Exhaust gas needs to be treated for dust removal. The common method to capture and separate dust from exhaust gas is to install a filter screen on the exhaust pipe. However, the degree of capture by the filter screen is limited. A filter screen full of dust will affect the normal emission of gas, and some fine dust may also pass through the filter screen, making it impossible for the filter screen to capture it effectively. Therefore, an exhaust gas dust capture device is provided. Utility Model Content

[0004] I. Technical problems to be solved

[0005] The technical problem this invention aims to solve is that the traditional method of using filters to capture and block dust in exhaust gas has limited effectiveness.

[0006] II. Technical Solution

[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a dust capture device for exhaust gas emissions, comprising:

[0008] The air purification cylinder has an air inlet pipe connected to one side of its bottom for inputting dusty waste gas to be treated. The upper and lower ends of the air purification cylinder are respectively provided with an exhaust port for discharging dust-free gas and a waste discharge port for discharging dust and sludge.

[0009] The air purification cylinder contains a dust collection section. The top of the air purification cylinder is connected to a wind box that can draw the airflow entering from the bottom upwards. The dust collection section is connected to a water mist dust removal mechanism that uses water mist to adhere to dust and separate it from the gas.

[0010] The air purification cylinder is equipped with a water supply system that provides water for the water mist dust removal mechanism.

[0011] Furthermore, the water mist dust removal mechanism includes a water cylinder rotating inside the dust collection section. A support is connected inside the clean air cylinder. The bottom of the water cylinder is rotatably mounted on the support. A power component capable of driving the water cylinder to rotate is installed inside the clean air cylinder. Multiple branch water pipes with smaller diameters are connected to the side of the water cylinder. The branch water pipes are densely covered with several tiny water holes. The water flow inside the water cylinder is thrown out through the water holes and diffuses in the dust collection section to form a water mist that can capture dust.

[0012] Furthermore, the side of the water tank is evenly connected with multiple mesh panels that capture dust in a wet state, and the mesh panels are connected between two adjacent rows of branch water pipes.

[0013] Furthermore, the power assembly includes a drive shaft, which is rotatably connected to one side of the air purifier cylinder. A drive motor that drives and cooperates with the drive shaft is installed inside the air purifier cylinder. A main pulley is installed on the drive shaft, and a secondary pulley is connected to the top of the water tank. A drive belt connects the main pulley and the secondary pulley together.

[0014] Furthermore, the water supply system includes a water pipe installed on one side of the top of the dust collection unit, a water pump installed on the water pipe, and the end of the water pipe embedded in the top of the water cylinder and rotatably connected to it via a rotary joint.

[0015] Furthermore, the bottom of the air box is equipped with multiple axial flow fans that can draw the gas delivered into the clean air cylinder from the lower air intake pipe upwards.

[0016] III. Beneficial Effects

[0017] The advantages of this invention compared to existing technologies are as follows: This device utilizes the property that dust in the airflow can be adsorbed onto a moist object, and uses water mist and a moist filter screen to capture the dust in the flow. In conjunction with the suction provided by the axial flow fan above and the downward gravity of the dust-laden water droplets, the mud and gas are separated, thereby capturing dust in the exhaust gas and achieving a highly efficient gas dust removal effect. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the external structure of a dust capture device for exhaust gas emission according to this utility model. Figure 1 .

[0019] Figure 2 This is a schematic diagram of the external structure of a dust capture device for exhaust gas emission according to this utility model. Figure 2 .

[0020] Figure 3 This is a schematic diagram of the external structure of a dust capture device for exhaust gas emission according to this utility model. Figure 3 .

[0021] Figure 4 This is a schematic diagram of the internal structure of a dust capture device for exhaust gas emission according to this utility model. Figure 1 .

[0022] Figure 5 This is a schematic diagram of the internal structure of a dust capture device for exhaust gas emission according to this utility model. Figure 2 .

[0023] Figure 6 yes Figure 3 A schematic diagram of the structure of part A.

[0024] Figure 7 yes Figure 4 A partial structural diagram.

[0025] As shown in the figure: 1. Clean air cylinder, 2. Dust collection section, 3. Support frame, 4. Water cylinder, 5. Branch water pipe, 6. Water hole, 7. Mesh plate, 8. Water supply pipe, 9. Water pump, 10. Air inlet pipe, 11. Waste outlet, 12. Main pulley, 13. Transmission belt, 14. Secondary pulley, 15. Transmission shaft, 16. Drive motor, 17. Air box, 18. Axial flow fan, 19. Exhaust port. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings.

[0027] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a dust capture device for exhaust gas emission, combined with an attached... Figure 1 It includes a clean air cylinder 1, with an air inlet pipe 10 connected to one side of the bottom of the clean air cylinder 1 for inputting the dust-containing waste gas to be treated, and an exhaust port 19 for discharging dust-free gas and a waste discharge port 11 for discharging dust and sludge respectively at the upper and lower ends of the clean air cylinder 1.

[0028] This device utilizes water mist sprayed in the channel through which the dust-laden airflow passes. The dust adheres to the water mist, forming heavier water droplets and sludge. Due to the increased gravity, the dust can no longer rise with the gaseous portion of the exhaust gas, thus separating out. To meet the planned airflow path during exhaust gas treatment, the clean air cylinder 1 is designed with the above structure. In use, it can be installed on the exhaust gas outlet of the exhaust gas generating equipment or instrument. If needed, the dust-free gas outlet at the top and the dust-laden sludge outlet at the bottom can be equipped with relevant receiving mechanisms, containers, etc.

[0029] Combined with appendix Figure 2 and attached Figure 4 The air purification cylinder 1 contains a dust collection section 2. The top of the air purification cylinder 1 is connected to a wind box 17 that can draw the airflow entering from the bottom upward. The bottom of the wind box 17 is equipped with a plurality of axial flow fans 18 that can draw the gas delivered into the air purification cylinder 1 by the lower air inlet pipe 10 upward. The operating speed of the axial flow fans 18 should be reasonably set to avoid insufficient extraction force or excessive suction force causing dust and water mist to be drawn upward together.

[0030] In order to ensure that the exhaust gas is transported from bottom to top in the clean air cylinder 1, the air box 17 equipped with the axial flow fan 18 is set at the top of the clean air cylinder 1.

[0031] Combined with appendix Figure 3-7 The dust collection unit 2 is connected to a water mist dust removal mechanism that uses water mist to adhere dust and separate it from the gas. The water mist dust removal mechanism includes a water cylinder 4 rotating inside the dust collection unit 2. A bracket 3 is connected inside the air purification cylinder 1. The bottom of the water cylinder 4 is rotatably mounted on the bracket 3. A power component capable of driving the water cylinder 4 to rotate is installed inside the air purification cylinder 1. The power component includes a drive shaft 15, which is rotatably connected to one side inside the air purification cylinder 1. A drive motor 16 that drives and cooperates with the drive shaft 15 is installed inside the air purification cylinder 1. A main motor is mounted on the drive shaft 15. A pulley 12 is provided, and an auxiliary pulley 14 is connected to the top of the water cylinder 4. A transmission belt 13 is connected between the main pulley 12 and the auxiliary pulley 14. Multiple branch water pipes 5 with smaller diameters are connected to the side of the water cylinder 4. The branch water pipes 5 are densely covered with several tiny water holes 6. The water in the water cylinder 4 is thrown out through the water holes 6 and diffuses into the dust collection section 2 to form a water mist that can capture dust. Multiple screens 7 that capture dust in a wet state are evenly connected to the side of the water cylinder 4. The screens 7 are connected between two adjacent rows of branch water pipes 5.

[0032] The dust collection unit 2, which includes a water mist dust removal mechanism, is located in the middle of the clean air cylinder 1, in the area between the air inlet pipe 10 and the air box 17. More specifically, its arrangement height should be reasonably calculated and coordinated with the operation of the axial flow fan 18 to achieve effective dust collection and removal.

[0033] After the drive motor 16 starts running, the water cylinder 4, which is erected at the center of the air purification cylinder 1, rotates along with the drive shaft 15 of the drive motor 16 under the drive of the belt transmission assembly. Under high-speed rotation, the centrifugal force throws the water inside it out through the water holes 6, so that the water mist and water droplets formed can relatively fully cover the airflow rising channel. At the same time, the mesh frame rotates along with the water cylinder 4. The mesh frame is equipped with mesh. The mesh can be regarded as a conventional filter screen, but the difference is that the mesh can absorb more dust when it is covered with water stains and rotates quickly. In addition, the dust-laden water mist suspended in mid-air gradually absorbs more dust or gathers together. When the gravity is greater than the suction force above, it will fall down to the exhaust port 11 below.

[0034] The dust-catching mesh frame can be periodically cleaned when it absorbs too much dust. When there is no exhaust gas treatment, the water spray intensity of the water tank 4 can be increased so that more water falls on the mesh frame to wash away the dust. The water flow control is the responsibility of the water supply system and water pump 9 described below.

[0035] Combined with appendix Figure 1-5The air purification cylinder 1 is equipped with a water supply system that provides water for the water mist dust removal mechanism. The water supply system includes a water pipe 8, which is installed on one side of the top of the dust collection section 2. A water pump 9 is installed on the water pipe 8, and the end of the water pipe 8 is embedded in the top of the water cylinder 4 and is rotatably connected to it through a rotary joint.

[0036] The water supply pipe 8 with water pump 9 is installed on the relevant water supply equipment and facilities. Its end extends into the air purification cylinder 1 and the water mist dust removal mechanism to continuously supply water to the water cylinder 4. It is fixed and can also be manufactured as an integral part of the air purification cylinder 1. Since the water cylinder 4 needs to be in a state of constant rotation inside the air purification cylinder 1, the entire water supply pipeline is divided into two ends, and the two are combined and installed by means of connecting parts such as rotary joints.

[0037] In specific implementation, this utility model is used in relevant scenarios and equipment facilities for exhaust gas dust removal operations. The exhaust gas containing dust is discharged to the outside or to the corresponding gas storage container or gas-using equipment through this device. The exhaust gas first enters the clean air cylinder 1 and is guided upward by the strong suction provided by the upper axial flow fan 18. When the exhaust gas passes through the dust collection section 2, the dust collection section 2 is already filled with water mist. The dust particles in the exhaust gas either adhere to the water mist or are captured by the rotating wet mesh frame, thus detaching from the exhaust gas. The dust that is not captured by the mesh frame slowly gathers into water droplets and water flow, and falls to the bottom and leaves from the exhaust port 11. The remaining exhaust gas without dust continues to be drawn by the upper axial flow fan 18, passes through the air box 17, and is finally discharged from the uppermost exhaust port 19.

[0038] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A dust capture device for exhaust gas emissions, characterized in that, include: Clean air cylinder (1), the bottom side of the clean air cylinder (1) is connected to an air inlet pipe (10) for inputting the dust-containing waste gas to be treated, and the upper and lower ends of the clean air cylinder (1) are respectively provided with an exhaust port (19) for discharging dust-free gas and a waste outlet (11) for discharging dust and sludge. The air purification cylinder (1) contains a dust collection section (2). The top of the air purification cylinder (1) is connected to a bellows (17) that can draw the airflow entering from the bottom upwards. The dust collection section (2) is connected to a water mist dust removal mechanism that uses water mist to adhere to dust and separate it from the gas. The air purification cylinder (1) is equipped with a water supply system that provides water for the water mist dust removal mechanism.

2. The dust capture device for exhaust gas emission according to claim 1, characterized in that: The water mist dust removal mechanism includes a water cylinder (4) rotating inside the dust collection section (2). A bracket (3) is connected inside the air purification cylinder (1). The bottom of the water cylinder (4) is rotatably mounted on the bracket (3). A power component capable of driving the water cylinder (4) to rotate is installed inside the air purification cylinder (1). Multiple branch water pipes (5) with smaller diameters are connected to the side of the water cylinder (4). Several tiny water holes (6) are densely distributed on the branch water pipes (5). The water flow inside the water cylinder (4) is thrown out through the water holes (6) and diffuses in the dust collection section (2) to form a water mist that can capture dust.

3. The dust capture device for exhaust gas emission according to claim 2, characterized in that: The water cylinder (4) is uniformly connected to multiple mesh plates (7) on its side, which capture dust in a wet state. The mesh plates (7) are connected between two adjacent rows of branch water pipes (5).

4. The dust capture device for exhaust gas emission according to claim 2, characterized in that: The power assembly includes a drive shaft (15), which is rotatably connected to one side of the air purifier (1). A drive motor (16) that drives and cooperates with the drive shaft (15) is installed inside the air purifier (1). A main pulley (12) is installed on the drive shaft (15). A secondary pulley (14) is connected to the top of the water tank (4). A drive belt (13) is connected between the main pulley (12) and the secondary pulley (14).

5. The dust capture device for exhaust gas emission according to claim 2, characterized in that: The water supply system includes a water pipe (8), which is installed on one side of the top of the dust collection unit (2). A water pump (9) is installed on the water pipe (8). The end of the water pipe (8) is embedded in the top of the water cylinder (4) and is rotatably connected to it through a rotary joint.

6. The dust capture device for exhaust gas emission according to claim 1, characterized in that: The bottom of the air box (17) is equipped with multiple axial flow fans (18) that can draw the gas that is delivered into the clean air cylinder (1) by the lower air inlet pipe (10) upward.

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