Wet dust collector

Abstract

The utility model discloses a wet dust collector which comprises a cylinder body, a dust inlet and a drain outlet are arranged on the cylinder body, a shunting device and a mixing pipe are arranged in the cylinder body, the mixing pipe is arranged below the shunting device, the dust inlet, close to the shunting device, of the mixing pipe is in a horn mouth shape, and the length of the mixing pipe is not less than three times of the diameter of the mixing pipe. The center line of the flow dividing device and the center line of the mixing pipe coincide with the center line of the cylinder body, the sewage draining exit is formed in the bottom of the cylinder body, the bottom of the cylinder body and the horizontal plane are arranged in an inclined mode, an air draft system is arranged at the end close to the sewage draining exit, and dust-containing waste gas and water mist are effectively mixed multiple times through the flow dividing device and the mixing pipe. And the dust removal efficiency and effect are improved.

Description

Technical Field

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

[0002] With the development of economy and society, dust collectors are also widely used in production and life in all walks of life. However, for some industries with serious dust pollution and large-scale unorganized emissions, such as metallurgical smelting, mining and other industries, due to the low dust removal efficiency and poor effect, the power of the dust collector is often increased to improve the dust removal effect, resulting in a huge dust removal structure, a large area, and a large investment, but the dust removal effect has not been significantly improved. Summary of the invention

[0003] In order to improve the dust removal effect, the utility model adopts the following technical scheme: it includes a cylinder, which is provided with a dust inlet and a sewage outlet, the dust inlet is arranged above the cylinder, the sewage outlet is arranged at the bottom of the cylinder, a diverter device and a mixing tube are arranged in the cylinder, the mixing tube is arranged below the diverter device, the dust inlet port of the mixing tube close to the diverter device is trumpet-shaped, the length of the mixing tube is not less than three times the diameter of the mixing tube, the center lines of the diverter device and the mixing tube coincide with the center line of the cylinder, a nozzle is arranged above the diverter device, the nozzle is connected to a water pump through a pipeline, the spraying direction of the nozzle is the same as the direction of the dust-incoming air, the bottom of the cylinder is inclined to the horizontal plane, and an exhaust system is arranged at one end close to the sewage outlet, and the exhaust system can adopt an axial flow fan.

[0004] Furthermore, the center line of the dust inlet coincides with the center line of the cylinder, so that the air intake is uniform.

[0005] Furthermore, the dust inlet is arranged on the upper side of the cylinder, and the cylinder is arranged in a cylindrical shape. The dust inlet is arranged on the upper side of the cylinder, which can save space. The side air intake can generate a cyclone on the cylinder wall, and the dust removal effect is better.

[0006] Furthermore, the mixing tube is connected to the cylinder through a partition, one end of the partition is fixedly connected to the cylinder, and the other end is arranged in an arc shape and connected to the mixing tube, the mixing tube is connected to the outer tangent of the arc to form a trumpet-shaped dust inlet port, and the diameter of the arc is 0.1-0.4 times the diameter of the mixing tube.

[0007] Furthermore, the partition is provided with through holes to facilitate flushing of sludge on the partition.

[0008] Furthermore, the diversion device is configured to be in an umbrella shape, including an umbrella plate and a bracket, and the bracket is connected to the cylinder.

[0009] Furthermore, the diversion device includes an inclined plate, a water receiving trough and a mounting frame, and the mounting frame is fixedly connected to the cylinder.

[0010] Furthermore, a static mixer is provided in the mixing tube, and the static mixer is a shaftless spiral blade. The spiral can be set to n, where n is an integer not less than 1, and the spiral lead is the same as the diameter. The angle between n adjacent spirals is 180° / n, and the length of the static mixer is not greater than 0.5 times the length of the mixing tube. For mixing tubes of larger sizes, the static mixer can also be set to a shaft spiral blade to increase strength.

[0011] Furthermore, a retaining groove is arranged in the cylinder, and the retaining groove is arranged below the mixing tube. A plurality of rows of through holes are evenly arranged on the bottom plate and the peripheral baffles of the retaining groove.

[0012] Furthermore, a fan and a driving motor are arranged in the mixing tube, and the driving motor drives the fan through a transmission shaft, and the other end of the transmission shaft is connected to the diverter device to drive the diverter device and the fan to rotate simultaneously.

[0013] Beneficial Effects

[0014] 1. The dust inlet, the diversion device and the center line of the cylinder are set to coincide with each other, so that the airflow and the water mist in the cylinder are mixed more evenly, ensuring the uniformity of the dust removal effect. The dust inlet port of the mixing tube is set in an arc trumpet shape, which can effectively reduce the air intake resistance, make the dust-containing and water-containing air flow faster, and improve the dust removal efficiency. In addition, the mud deposited on the partition at the dust inlet port forms a flowing cofferdam, which reduces the generation of vortex and further improves the dust removal effect.

[0015] The diversion device is set in an umbrella shape, and cooperates with the spraying of water mist by the nozzle to form a "water curtain" under the umbrella plate, so that the dust-containing exhaust gas can be better mixed with water. Moreover, the spray direction of the nozzle is the same as the direction of the dust-incoming air, so that the dust-containing exhaust gas is accelerated to flow, thereby improving the dust removal efficiency and effect; moreover, under the action of water mist and air, a turbulent area will be formed under the umbrella plate. Because the flow rate is large enough, the streamlines are no longer clearly discernible, there are many small vortices in the flow field, and there is not only sliding but also mixing between adjacent flow layers, which accelerates the flow of dust-containing exhaust gas and the combination area and efficiency with water mist.

[0016] 2. When the diversion device is equipped with a water tank, the dust-containing and water-containing air part changes its original movement trajectory, so that the dust-containing exhaust gas and water form a speed difference, and then combine again, which prolongs the combination time and improves the dust removal effect;

[0017] 3. A static mixer is set in the mixing tube to combine the dust-containing exhaust gas and water again, and chaotic stirring is carried out in the mixing tube. The moving direction trajectory is changed many times to make the dust and water combine more fully. In addition, multiple spirals can be set according to actual needs. The same spiral lead and diameter can improve the mixing effect of water and dust;

[0018] 4. A retaining groove is set under the mixing pipe to change the direction of the dust-containing water mist, increase the mixing effect, improve the dust removal cleanliness, and also play a role in reducing pressure, reducing the pressure of pressurized dust-containing sewage, and protecting the life and reliability of the device.

[0019] 5. The fan is set in the mixing tube, and a driving system drives the fan and the diverter device to rotate at the same time, which not only saves energy but also improves the dust removal effect. The diverter device rotates without the need for a nozzle to achieve a better mixing effect. Combined with the water mist sprayed by the nozzle, the water mist particles are faster and more efficient in combining with the dust.

[0020] 6. An exhaust system is set at one end of the sewage outlet of the sewage pipe to exhaust air, so that the flow rate of water-containing dust is faster, which can flush the cylinder and the bottom of the sewage pipe and reduce the deposition of sludge.

[0021] In short, the utility model enables the dust-containing exhaust gas to be effectively mixed with water for multiple times in the cylinder, which greatly improves the dust removal efficiency and effect, does not need to be equipped with a huge dust removal mechanism, and saves land and equipment investment. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Attached Figure 1 , 4 , 5, 6, and 7 are schematic diagrams of a structure provided in Example 1 of the present application;

[0023] Attached Figure 2 A structural schematic diagram provided for Example 2 of the present application;

[0024] Attached Figure 3 A structural schematic diagram provided for Example 3 of the present application;

[0025] The following are the descriptions of the reference numerals:

[0026] 1. Cylinder; 101. Partition; 2. Dust inlet; 3. Sewage outlet; 4. Diverter; 41. Umbrella plate; 42. Bracket; 43. Inclined plate; 44. Water trough; 45. Mounting frame; 5. Mixing tube; 51. Dust inlet port; 52. Static mixer; 6. Water inlet pipe; 61. Nozzle; 7. Axial fan; 8. Gutter; 9. Fan; 91. Transmission shaft; 10. Driving motor. DETAILED DESCRIPTION

[0027] Example 1

[0028] like Figure 1, Figure 7 , Figure 1 The large arrow in the figure indicates the movement direction trajectory of the dust-containing exhaust gas, and the small arrow indicates the movement trajectory of the water mist. A wet dust collector comprises a cylinder 1, on which a dust inlet 2 and a sewage outlet 3 are arranged. The dust inlet 2 is arranged above the cylinder 1, and a diverter 4 and a mixing tube 5 are arranged in the cylinder 1. The mixing tube 5 is arranged below the diverter 4. The dust inlet port 51 of the mixing tube 5 close to the diverter 4 is in a trumpet shape. The length of the mixing tube 5 is not less than three times the diameter of the mixing tube, and the length of the mixing tube is not easy to be less than 3 times the diameter of the mixing tube, which affects the mixing effect of the dust-containing exhaust gas; the center lines of the dust inlet 2, the diverter 4 and the mixing tube 5 all coincide with the center line of the cylinder 1, so that the mixing of the airflow and the water mist in the cylinder 1 is more uniform, thereby improving the uniformity of the dust removal effect. The diverter is provided with an inlet port 51 above the diverter. The water outlet of the water pipe 6 is arranged on the upper center line of the diverter device 4. A nozzle 61 is arranged at the water outlet of the water inlet pipe 6. The spraying direction of the nozzle 61 is the same as the air direction of the dust intake. The nozzle 61 can adopt a hollow cone nozzle with good atomization effect, and a water pump is connected to the outside through a pipeline. The sewage outlet 3 is arranged at the bottom of the cylinder 1. The bottom of the cylinder 1 is arranged at a certain slope with the horizontal plane to facilitate the flow of sludge deposited at the bottom. An axial flow fan 7 is arranged at one end of the sewage outlet 3 of the sewage pipe. The axial flow fan 7 is an exhaust fan arranged above the sewage pipe; the dust inlet port 51 of the mixing tube 5 is arranged in a trumpet shape, which can reduce the air intake resistance, make the dust-containing and water-containing exhaust gas flow faster, improve the dust removal efficiency, and form a flow cofferdam at the dust inlet port to reduce the generation of vortex and improve the dust removal effect.

[0029] Preferably, the diverter 4 is configured in an umbrella shape, including an umbrella plate 41 and a bracket 42, the bracket 42 is fixedly connected to the cylinder 1, a nozzle 61 is provided above the diverter 4, the spray direction of the nozzle 61 is the same as the direction of the dust-intake air, and the umbrella-shaped diverter 4 cooperates with the nozzle 61 to form a "water curtain" under the umbrella plate 41, such as Figure 1 The dotted line below the umbrella plate 41 in the figure makes the dust-containing exhaust gas better mixed with the water mist, and the spray direction of the nozzle 61 is the same as the flow direction of the dust-intake air, which accelerates the flow of the dust-containing exhaust gas, thereby improving the dust removal efficiency and effect; at the same time, under the joint action of water mist and air, as shown by the small arrow in the figure, part of the water mist and dust-containing exhaust gas will form a turbulent area below the umbrella plate 41. Because the flow velocity is large enough, the streamlines are no longer clearly discernible, there are many small vortices in the flow field, and there is not only sliding but also mixing between adjacent flow layers, which accelerates the flow of the dust-containing exhaust gas and the combined area and efficiency with the water mist.

[0030] Preferably, a static mixer 52 is provided in the mixing tube 5. Figure 6As shown, the static mixer 52 can be provided with at least one spiral blade as needed, and the spiral lead is the same as the diameter; when two groups of spirals are provided, the adjacent angles are 90°, and the spiral blades can change the traveling directions of the dust-laden air and the water mist for many times, thereby increasing the mixing probability and the number of times. The static mixer 52 should not fill the entire length of the mixing tube 5, and its length can reach 0.3-0.5 times the length of the mixing tube 5, and the spiral blades can be fixedly connected to the inner wall of the mixing tube 5; for the mixing tube 5 of a larger size, the static mixer can also be provided with axial spiral blades to increase the strength.

[0031] Preferably, Figure 4 As shown, the partition 101 can be symmetrically provided with through holes to facilitate flushing of sludge on the partition.

[0032] Preferably, a retaining groove 8 is provided in the cylinder 1, and the retaining groove 8 is arranged below the mixing tube 5. The retaining groove 8 can be fixedly connected to the mixing tube 5, and can also be fixedly connected to the inner wall of the cylinder 1. A plurality of rows of through holes are evenly arranged on the bottom plate and the surrounding baffles of the retaining groove 8 to facilitate the passage of dust-containing sewage. The retaining groove 8 is provided to change the original trajectory direction of the dust-containing water mist, increase the mixing effect, improve the dust removal cleanliness, and also play a role in reducing pressure, thereby reducing the pressure of the pressurized dust-containing sewage, improving the reliability of the device, and extending the service life.

[0033] Embodiment 2:

[0034] like Figure 2As shown in the figure, the large arrow in the figure indicates the movement direction trajectory of the dust-containing exhaust gas, and the small arrow indicates the movement trajectory of the water mist. A wet dust collector comprises a cylinder 1, on which a dust inlet 2 and a sewage outlet 3 are arranged, and a diverter device 4 and a mixing tube 5 are arranged in the cylinder 1. The mixing tube 5 is arranged below the diverter device 4, and the dust inlet 51 of the mixing tube 5 close to the diverter device 4 is in the shape of a trumpet. The length of the mixing tube 5 is not less than three times the diameter of the mixing tube 5, which can enhance the mixing effect of the dust-containing exhaust gas and the water mist; the cylinder 1 is set to a cylindrical shape, and the dust inlet 2 is set at the upper side of the cylinder 1. The dust inlet 2 is set at the upper side of the cylinder 1, which can save space. When the cylinder 1 is set to a cylindrical shape, the side air intake can make the dust-containing exhaust gas entering the cylinder 1 produce a cyclone effect, and the dust removal effect is better; the center line of the diverter device 4 and the center line of the mixing tube 5 both coincide with the center line of the cylinder 1, so that the cylinder 1 is mixed more evenly with the water mist, thus ensuring the uniformity of the mixing and improving the dust removal effect. A water outlet of a water inlet pipe 6 is arranged above the diverter device, and the water outlet is arranged on the upper center line of the diverter device 4. A nozzle 61 is arranged at the water outlet of the water inlet pipe 6, and the spraying direction of the nozzle 61 is the same as the air direction of the dust intake. The nozzle 61 is externally connected to a water pump through a pipeline. The sewage outlet 3 is arranged at the bottom of the cylinder 1, and a certain slope is arranged between the bottom of the cylinder 1 and the horizontal plane to facilitate the flow of sludge deposited at the bottom. An axial flow fan 7 is arranged at one end of the sewage outlet 3 of the sewage pipe, and the axial flow fan 7 is an exhaust fan arranged above the sewage pipe; the dust inlet port 51 of the mixing tube 5 is arranged in a trumpet shape, which can reduce the air intake resistance, make the dust-containing and water-containing exhaust gas flow faster, improve the dust removal efficiency, and form a cofferdam at the dust inlet port to reduce the generation of vortex and improve the dust removal effect.

[0035] Preferably, the diverter device 4 includes an inclined plate 43, a water receiving trough 44 and a mounting frame 45. The inclined plate 43 is connected to the mounting frame 45. The water receiving trough 44 is arranged at the upper end of the inclined plate 43. The mounting frame 45 is connected to the cylinder 1. The water receiving trough 44 is arranged so that the dust-containing and water-containing air part changes its original motion trajectory, forming a speed difference and a faster flow rate, so that the dust-containing exhaust gas and water are combined again, and the dust removal effect is further improved.

[0036] Furthermore, a static mixer 52 is provided in the mixing tube 5. Figure 6 As shown, the static mixer 52 can be provided with at least one spiral blade as needed, and the spiral lead is the same as the diameter; 3 groups of spirals are provided, and the adjacent angles are 60°. The spiral blades can change the traveling directions of the dust-laden air and the water mist for many times, thereby increasing the mixing probability and the number of times. The static mixer 52 should not fill the entire length of the mixing tube 5, and its length can be 0.3-0.5 times the length of the mixing tube 5.

[0037] Furthermore, a retaining groove 8 is provided in the cylinder 1, and the retaining groove 8 is provided below the mixing tube 5. The retaining groove 8 can be fixedly connected to the mixing tube 5 or to the cylinder 1. A plurality of rows of through holes are evenly provided on the bottom plate and the surrounding baffles of the retaining groove 8 to facilitate the passage of dust-containing sewage. The retaining groove 8 is provided to change the original trajectory direction of the dust-containing water mist, increase the mixing effect, improve the dust removal cleanliness, and also play a role in reducing pressure, thereby reducing the pressure of the pressurized dust-containing sewage, improving the reliability of the device, and extending the service life.

[0038] Embodiment 3:

[0039] like Figure 3 As shown in the figure, the large arrow in the figure indicates the movement direction trajectory of the dust-containing exhaust gas, and the small arrow indicates the movement trajectory of the water mist. A wet dust collector comprises a cylinder 1, on which a dust inlet 2 and a sewage outlet 3 are arranged, and a diverter device 4 and a mixing tube 5 are arranged in the cylinder 1. The mixing tube 5 is arranged below the diverter device 4, and the dust inlet 51 of the mixing tube 5 close to the diverter device 4 is in the shape of a trumpet. The length of the mixing tube 5 is not less than three times the diameter of the mixing tube 5, which can enhance the mixing effect of the dust-containing exhaust gas; the dust inlet 2 is arranged on the upper side of the cylinder 1, and the cylinder 1 is arranged in a cylindrical shape. The dust inlet 2 is arranged on the upper side of the cylinder 1, which can save space. When the cylinder 1 is arranged in a cylindrical shape, the side air intake can make the dust-containing exhaust gas entering the cylinder 1 generate a cyclone, and the dust removal effect is better; the center line of the diverter device 4 and the center line of the mixing tube 5 both coincide with the center line of the cylinder 1, so that the inside of the cylinder 1 The mixing of the airflow and the water mist is more uniform, which ensures the uniformity of the mixing and improves the dust removal effect. A water outlet of a water inlet pipe 6 is provided above the diverter device, and the water outlet is arranged on the upper center line of the diverter device 4. A nozzle 61 is provided at the water outlet of the water inlet pipe 6. The spraying direction of the nozzle 61 is the same as the air direction of the dust intake. The nozzle 61 is externally connected to a water pump through a pipeline. The sewage outlet 3 is arranged at the bottom of the cylinder 1. The bottom of the cylinder 1 is set at a certain inclination with the horizontal plane to facilitate the flow of sludge deposited at the bottom. An axial flow fan 7 is arranged at one end near the sewage outlet 3 of the sewage pipe. The axial flow fan 7 is an exhaust fan arranged above the sewage pipe; the dust inlet port 51 of the mixing tube 5 is set to a trumpet shape, which can reduce the air intake resistance, make the dust-containing and water-containing exhaust gas flow faster, improve the dust removal efficiency, and form a cofferdam at the dust inlet port to reduce the generation of vortex and improve the dust removal effect.

[0040] Preferably, Figure 3 As shown, a fan 9 and a driving motor 10 are arranged in the mixing tube 5. The driving motor 10 drives the fan 9 through one end of a transmission shaft 91. The other end of the transmission shaft 91 is connected to the diverter device 4. The driving motor 10 can drive the diverter device 4 and the fan 9 to rotate simultaneously, and the nozzle 61 can be omitted. The water sprayed to the diverter device 4 by the nozzle 61 is thrown into the space of the cylinder more evenly and accelerated by the rotation speed of the diverter device 4 to combine with the dust-containing exhaust gas.

[0041] Furthermore, a retaining groove 8 is provided in the cylinder 1, and the retaining groove 8 is provided below the mixing tube 5. The retaining groove 8 can be fixedly connected to the mixing tube 5 or to the cylinder 1. A plurality of rows of through holes are evenly provided on the bottom plate and the surrounding baffles of the retaining groove 8 to facilitate the passage of dust-containing sewage. The retaining groove 8 is provided to change the original trajectory direction of the dust-containing water mist, increase the mixing effect, improve the dust removal cleanliness, and also play a role in reducing pressure, thereby reducing the pressure of the pressurized dust-containing sewage, improving the reliability of the device, and extending the service life.

[0042] Embodiment 4:

[0043] like Figure 1 As shown in the figure, the large arrow in the figure indicates the movement direction trajectory of the dust-containing exhaust gas, and the small arrow indicates the movement trajectory of the water mist. A wet dust collector comprises a cylinder 1, on which a dust inlet 2 and a sewage outlet 3 are arranged. A diverter 4 and a mixing tube 5 are arranged in the cylinder 1. The mixing tube 5 is arranged below the diverter 4. The dust inlet port 51 of the mixing tube 5 close to the diverter 4 is in a trumpet shape. The length of the mixing tube 5 is not less than three times the diameter of the mixing tube. The length of the mixing tube is not easy to be less than 3 times the diameter of the mixing tube, which affects the mixing effect of the dust-containing exhaust gas. The center lines of the dust inlet 2, the diverter 4 and the mixing tube 5 all coincide with the center line of the cylinder 1, so that the mixing of the airflow and the water mist in the cylinder 1 is more uniform, thereby improving the uniformity of the dust removal effect. The diverter is provided above The water inlet pipe 6 has a water outlet, and the water outlet is arranged on the upper center line of the diverter device 4. A nozzle 61 is arranged at the water outlet of the water inlet pipe 6. The spraying direction of the nozzle 61 is the same as the air direction of the dust intake. The nozzle 61 can adopt a hollow cone nozzle and is externally connected to a water pump through a pipeline. The sewage outlet 3 is arranged at the bottom of the cylinder 1. The bottom of the cylinder 1 is set at a certain slope with the horizontal plane to facilitate the flow of sludge deposited at the bottom. An axial flow fan 7 is arranged at one end near the sewage outlet 3 of the sewage pipe. The axial flow fan 7 is an exhaust fan arranged above the sewage pipe; the dust inlet port 51 of the mixing tube 5 is arranged in a trumpet shape, which can reduce the air intake resistance, make the dust-containing and water-containing exhaust gas flow faster, improve the dust removal efficiency, and form a cofferdam at the dust inlet port to reduce the generation of vortex and improve the dust removal effect.

[0044] The mixing tube 5 is connected to the cylinder 1 through a partition 101. One end of the partition 101 is welded to the cylinder 1, and the end of the other end is set to an arc shape and connected to the mixing tube 5. The mixing tube 5 is connected to the outer tangent of the arc at the end to form a trumpet-shaped dust inlet 51, and the diameter of the arc is 0.6 times the diameter of the mixing tube. The arc-shaped trumpet-shaped setting of the dust inlet 51 can reduce the air intake resistance entering the mixing tube 5, so that the dust-containing and water-containing exhaust gas flows faster, and the exhaust gas mixed with water drives the deposited mud on the partition 101 to flow together at the outer edge of the arc trumpet of the dust inlet 51 to form an annular area, so that the deposited mud quickly flows into the mixing tube 5 and falls into the bottom of the cylinder 1, as shown by the large arrow in the figure. The movement direction trajectory of the dust-containing exhaust gas improves the dust removal efficiency, and forms a flowing cofferdam at the dust inlet 51 to reduce the generation of vortexes; holes can also be opened on the partition 101 according to the amount of deposited mud to make the deposited mud flow faster.

[0045] In summary, the advantages of the present application are: by aligning the center line of the dust inlet 2 and the center line of the diverter 4 with the center line of the cylinder 1, the mixing of the airflow and the water mist in the cylinder 1 is made more uniform, the uniformity of the mixing is ensured, and the dust removal effect is improved; the dust inlet 51 of the mixing tube 5 is set in a trumpet shape, which can reduce the air intake resistance, make the dust-containing and water-containing air flow faster, and improve the dust removal efficiency; and a cofferdam is formed at the dust inlet 51 to reduce the generation of eddy currents, thereby further improving the dust removal effect;

[0046] The flow dividing device 4 is set in an umbrella shape, and cooperates with the spraying water mist of the nozzle 61 to form a "water curtain" under the umbrella plate 41, so that the dust-containing exhaust gas is better mixed with the water. Moreover, the spraying direction of the nozzle 61 is the same as the flow direction of the dust-intake air, which accelerates the flow of the dust-containing exhaust gas and further improves the dust removal efficiency and effect; at the same time, under the action of water mist and air, the dust-containing exhaust gas and water mist will form turbulent flow under the umbrella plate 41. Because the flow rate is large enough, the streamlines are no longer clearly discernible, and there are many small vortices in the flow field. There is not only sliding but also mixing between adjacent flow layers, which accelerates the flow of dust-containing exhaust gas and its combination with water mist, and accelerates the flow of dust-containing exhaust gas and its combination with water mist;

[0047] When the diverter device 4 is provided with a water receiving tank 44, the original movement trajectory of part of the dust-containing and water-containing air is changed, forming a speed difference, so that the dust-containing exhaust gas and water are combined again, thereby improving the dust removal effect;

[0048] A static mixer 52 is arranged in the mixing tube 5, and the sewage combined with the dust-containing exhaust gas is chaotically stirred in the mixing tube 5. The moving direction is changed several times during the stirring process, so that the dust and water are more fully combined. In addition, multiple spirals can be arranged according to actual needs. The same spiral lead and diameter can better improve the mixing effect of water and dust.

[0049] A retaining groove 8 is arranged below the mixing pipe 5, which changes the direction of the dust-containing water mist, improves the mixing effect, enhances the dust removal cleanliness, and also plays a role in reducing pressure, thereby reducing the pressure of the pressurized dust-containing sewage, improving the reliability of the device and extending its service life;

[0050] The fan 9 is arranged in the mixing tube 5, and a driving motor 10 is used to drive the fan 9 and the diverter 4 to rotate at the same time, which not only saves energy but also improves the dust removal effect. The diverter 4 rotates, and the nozzle 31 is not required, so a better mixing effect can be achieved;

[0051] An axial flow fan 7 is provided at one end near the sewage outlet 3 to extract air, so that the dusty sewage flows faster, which can flush the cylinder 1 and the bottom of the sewage pipe and reduce the deposition of sludge;

[0052] In summary, in the utility model, the dust-containing exhaust gas first passes through the "water curtain" formed by the diverter device 4 to allow the dust-containing exhaust gas and the water mist to be effectively mixed for the first time, and then is effectively mixed for the second time in the "turbulent flow" area formed by the umbrella plate 41 below the diverter device 4, and is mixed for the third time at the arc bell mouth of the dust inlet port 51 of the mixing tube 5 through the arc bell mouth, and is mixed for the fourth time through the static mixer 52 in the mixing tube 5, and is mixed for the fifth time at the retaining groove 8. After multiple high-speed and effective mixing, the dust removal effect is improved.

Claims

1. A wet dust collector, characterized in that: It includes a cylinder body, which is provided with a dust inlet and a sewage outlet, the dust inlet is arranged above the cylinder body, the sewage outlet is arranged at the bottom of the cylinder body, a diverter device and a mixing tube are arranged in the cylinder body, the mixing tube is arranged below the diverter device, the dust inlet port of the mixing tube close to the diverter device is trumpet-shaped, the length of the mixing tube is not less than three times the diameter of the mixing tube, the center lines of the diverter device and the mixing tube both coincide with the center line of the cylinder body, a nozzle is arranged above the diverter device, the nozzle is connected to a water pump through a pipeline, the spraying direction of the nozzle is the same as the direction of dust inlet air, the bottom of the cylinder is inclined to the horizontal plane, and an exhaust system is arranged at one end close to the sewage outlet.

2. A wet dust collector according to claim 1, characterized in that: The center line of the dust inlet coincides with the center line of the cylinder.

3. A wet dust collector according to claim 1, characterized in that: The barrel is configured to be cylindrical, and the dust inlet is configured to be disposed on the upper side of the barrel.

4. A wet dust collector according to claim 2 or 3, characterized in that: The mixing tube is connected to the cylinder through a partition, one end of the partition is fixedly connected to the cylinder, and the other end is arranged in an arc shape and connected to the mixing tube, the mixing tube is connected to the outer tangent of the arc to form a trumpet-shaped dust inlet port, and the diameter of the arc is 0.1-0.4 times the diameter of the mixing tube.

5. A wet dust collector according to claim 4, characterized in that: The partition plate is provided with a through hole.

6. A wet dust collector according to claim 1, characterized in that: The diversion device is configured in an umbrella shape, including an umbrella plate and a bracket, and the bracket is connected to the cylinder.

7. A wet dust collector according to claim 1, characterized in that: The flow dividing device comprises an inclined plate, a water receiving trough and a mounting frame, and the mounting frame is connected to the cylinder.

8. A wet dust collector according to claim 6 or 7, characterized in that: The mixing tube is provided with a static mixer, which is a shaftless spiral blade with n blades, where n is an integer not less than 1, and the spiral lead is the same as the diameter. The length of the static mixer is not greater than 0.5 times the length of the mixing tube.

9. A wet dust collector according to claim 1, characterized in that: A retaining groove is arranged in the cylinder, and the retaining groove is arranged below the mixing tube. A plurality of rows of through holes are evenly arranged on the bottom plate and the peripheral baffles of the retaining groove.

10. A wet dust collector according to claim 1, characterized in that: The mixing tube is provided with a fan and a driving motor, the driving motor drives the fan through a transmission shaft, and the other end of the transmission shaft is connected to the diverter device to drive the diverter device and the fan to rotate simultaneously.

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