Wet dust catcher with external motor

Abstract

The utility model relates to the technical field of dust removal, and provides a wet dust catcher with an external motor, comprising: a box body provided with a first air inlet and a first air outlet, the first air outlet being used for exhausting air indoors; the volute is provided with a second air inlet and a second air outlet, and the second air outlet is communicated with the first air inlet; the external motor is arranged on one side of the volute; the impeller is arranged in the volute, and the motor is used for driving the impeller to rotate; the first water spraying assembly is arranged at the position of the second air inlet and used for spraying water to the impeller. According to the technical scheme, the service life of the wet dust catcher is prolonged in the mode that the motor is externally arranged.

Description

Technical Field

[0001] The present application relates to the technical field of dust removal, and more specifically, to a wet dust collector with an external motor. Background Art

[0002] At present, existing wet dust collectors include a power part, a secondary dust removal part, and a dehydration and demisting part.

[0003] Among them, the motor of the power part is fixed inside the cylinder at the center. The end of the motor shaft is fixed with a centrifugal impeller near the end face of the air inlet. A guide plate for guiding the flow of gas (liquid) is installed behind the impeller. A nozzle for spraying a washing medium into the inner cylinder is installed at the air inlet. The high-speed rotation of the motor drives the centrifugal impeller to rotate, creating a negative pressure inside the cylinder to suck the dust-containing gas into the cylinder, and breaking the water sprayed on the surface of the impeller into a mist to mix with the dust to form dust-containing liquid droplets. At the same time, a vortex is generated around the impeller and flows along the inner wall in a swirling manner to the rear after passing through the guide plate. Part of the sewage is discharged through the drain trough, and the other part swirls to the secondary dust removal part. For example, a wet filter scrubber with enhanced agglomeration, with the application number CN202410035060.0, discloses a wet filter scrubber with enhanced agglomeration, including a box body 1, an atomizing dust removal component, a dust strengthening agglomeration component, and a deep filtration component. The motor shaft of the explosion-proof motor 10 extends outside the enlarged-diameter drainage inner cylinder 7, and a mixed-flow impeller 11 is fixedly installed on the motor shaft of the explosion-proof motor 10.

[0004] In the prior art, since the motor is placed behind the impeller, the positive pressure generated by the rotation of the impeller towards the rear easily presses the water vapor on the motor mounting plate into the motor cavity, resulting in moisture ingress inside the motor. Prolonged and long-term operation can easily cause the motor to burn out. Utility Model Content

[0005] The technical problem to be solved by the present application is to provide a wet dust collector with an external motor to improve the service life of the wet dust collector by means of an external motor.

[0006] To solve the above technical problem, the present application adopts the following technical solutions:

[0007] The present application provides a wet dust collector with an external motor, including: a box body provided with a first air inlet and a first air outlet, the first air outlet being used for exhausting air into the room; a volute provided with a second air inlet and a second air outlet, the second air outlet being communicated with the first air inlet; an external motor disposed on one side of the volute; an impeller disposed inside the volute, the motor being used to drive the impeller to rotate; a first water spraying component disposed at the position of the second air inlet, the first water spraying component being used to spray water onto the impeller.

[0008] As an implementation manner, a support portion protruding along one side of the volute is further provided at the position of the second air inlet. The first water spraying assembly includes a first spray head and a first water inlet pipe connected to the first spray head. The first water inlet pipe is connected to the support portion, and the first spray head is arranged facing the impeller.

[0009] As an implementation manner, the volute includes a connecting portion connected to the box body. An installation area is provided below the connecting portion. A support frame is arranged in the installation area. Two ends of the support frame are respectively communicated with the first air inlet and the second air outlet. A vibrating wire filter plate is installed on the support frame, and a drainage groove is arranged at the bottom of the support frame.

[0010] As an implementation manner, the wet dust collector further includes a second water spraying assembly. The second water spraying assembly includes a second water inlet pipe and a second spray head. The second water inlet pipe penetrates through one side of the volute and is connected to the second spray head. The second spray head is arranged in the volute and faces the vibrating wire filter plate.

[0011] As an implementation manner, a sewage discharge port is further provided at the bottom of the box body. The bottom wall of the box body is inclined in the direction of the sewage discharge port.

[0012] As an implementation manner, the wet dust collector further includes a first drain pipe. Two ends of the first drain pipe are respectively communicated with the drainage groove and the box body.

[0013] As an implementation manner, a second drain pipe is further provided at the bottom of the support frame. The second drain pipe is located on the opposite side of the first drain pipe. Two ends of the second drain pipe are respectively communicated with the drainage groove and the bottom of the support frame.

[0014] As an implementation manner, the first air outlet is arranged upward. A demister is further arranged in the box body. The demister is arranged at the position of the first air outlet.

[0015] As an implementation manner, a first air distribution plate is further provided below the demister. The first air distribution plate is arranged horizontally.

[0016] As an implementation manner, at least one inspection door is further provided on the box body.

[0017] The technical solution of the present application has the following beneficial effects:

[0018] The wet dust collector with an external motor includes a box body, which includes a first air inlet and a first air outlet. The first air outlet is used for exhausting air into the room. The wet dust collector also includes a volute, which is provided with a second air inlet and a second air outlet. The second air outlet is communicated with the first air inlet. An external motor is also disposed outside the volute, and the motor is connected to an impeller inside the volute. The first water spraying assembly is arranged at the position of the second air inlet. When the motor is started, the motor can drive the impeller to rotate. The impeller generates negative pressure to suck the dust-containing gas into the volute through the second air inlet. The first water spraying assembly sprays water towards the impeller, and the impeller breaks the water into a mist and mixes it with the dust to form dust-containing liquid droplets. At the same time, since the motor of the present application is external, the water and the dust-containing liquid droplets will not enter the motor due to the blocking of the volute, thereby improving the service life of the motor and further improving the service life of the wet dust collector. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following will briefly introduce the drawings required to be used in the embodiments of the present application. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0020] Figure 1 Structural schematic diagram of the wet dust collector provided by the embodiment of the present application;

[0021] Figure 2 Structural schematic diagrams of the wet dust collector provided by the embodiment of the present application from different perspectives;

[0022] Figure 3 Exploded structural schematic diagram of the wet dust collector provided by the embodiment of the present application;

[0023] Figure 4 Another exploded structural schematic diagram of the wet dust collector provided by the embodiment of the present application;

[0024] Figure 5 Structural schematic diagrams of the wet dust collector provided by the embodiment of the present application from different perspectives;

[0025] Figure 6 For Figure 5 the sectional structural schematic diagram in the A-A direction of

[0026] Figure 7 Structural schematic diagram of the impeller provided by the embodiment of the present application.

[0027] Icon: 1 - box body; 11 - first air outlet; 12 - sewage outlet; 13 - first air inlet; 2 - volute; 22 - second air outlet; 3 - motor; 4 - impeller; 5 - first water spraying assembly; 6 - support part; 7 - connecting part; 8 - support frame; 81 - drainage trough; 9 - vibrating wire filter plate; 10 - second water spraying assembly; 14 - second drain pipe; 15 - demister; 16 - first air distribution plate; 17 - second air distribution plate; 18 - inspection door; 19 - first drain pipe. Detailed implementation manner

[0028] Next, the technical solutions in the embodiments of the present application will be described in conjunction with the accompanying drawings in the embodiments of the present application.

[0029] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. At the same time, in the description of the present application, terms such as "first" and "second" are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0030] As Figure 1 , 2 As shown in FIGS. 6 and 7, an embodiment of the present application provides a wet dust collector with an external motor, including a box body 1. The box body 1 includes a first air inlet 13 and a first air outlet 11. The first air outlet 11 is used for exhausting air to the room. The wet dust collector further includes a volute 2. The volute 2 is provided with a second air inlet and a second air outlet 22. The second air outlet 22 is communicated with the first air inlet 13. An external motor 3 is also disposed outside the volute 2. The motor 3 is connected to an impeller 4 in the volute 2. The first water spraying assembly 5 is disposed at the position of the second air inlet. When the motor 3 is started, the motor 3 can drive the impeller 4 to rotate. The impeller 4 generates negative pressure to suck the dust-containing gas into the volute 2 through the second air inlet. The first water spraying assembly 5 sprays water towards the impeller 4. The impeller 4 breaks the water into a mist and mixes it with the dust to form dust-containing liquid droplets. At the same time, since the motor 3 of the present application is external, the water and the dust-containing liquid droplets will not enter the motor 3 through the blockage of the volute 2, thereby increasing the service life of the motor 3 and further increasing the service life of the wet dust collector.

[0031] In addition, in the patent 2024219592823 previously applied by the applicant, since a blower is provided in the first barrel, once the dust content is too high, the first drainage trough is blocked, the internal is waterlogged, and the impeller rotates with uneven force under the immersion in water, which will cause the motor load to be too large and easily burned out. In the embodiment of the present application, after the volute 2 is communicated with the box body 1, the sewage flowing towards the air outlet of the volute 2 will be directly blown into or flow into the box body 1 and flow out from the sewage outlet 12 below the box body 1, reducing the risk of uneven force on the impeller 4 caused by blockage and waterlogging.

[0032] Optionally, the output shaft of the motor 3 can be directly connected to the impeller 4, that is, the output shaft of the motor 3 can directly drive the impeller 4 to rotate. Of course, in the embodiments of the present application, a belt drive method can also be selected to make the motor 3 drive the impeller 4 to rotate.

[0033] Optionally, a motor bracket is also provided on one side of the volute 2, and the motor bracket is used to support the motor 3.

[0034] In addition, the external placement of the motor 3 also facilitates maintenance.

[0035] Optionally, the connection between the impeller 4 and the conveying shaft of the motor 3 can be key connection, welding, bolt connection, interference fit, etc.

[0036] In order to prevent water from entering the interior of the motor 3 along the output shaft of the motor 3, a waterproof cover is also provided at the front end of the output shaft.

[0037] Such as Figure 1 and 5 shown, as an implementation manner, a support portion 6 protruding along one side of the volute 2 is also provided at the position of the second air inlet. The first water spraying assembly 5 includes a first spray head and a first water inlet pipe connected to the first spray head. The first water inlet pipe is connected to the support portion 6, and the first spray head is arranged facing the impeller 4. By providing the support portion 6, an installation space is provided for the first water spraying assembly 5, so that the first spray head can spray water in the direction of the impeller 4.

[0038] Optionally, the support portion 6 is provided in a penetrating manner, and a filter screen is also provided at one end of the support portion 6.

[0039] Such as Figure 1 、 3 and 6 shown, as an implementation manner, the volute 2 includes a connection portion 7 connected to the box body 1. An installation area is provided below the connection portion 7. A support frame 8 is provided in the installation area. Two ends of the support frame 8 are respectively communicated with the first air inlet 13 and the second air outlet 22. A vibrating wire filter plate 9 is installed on the support frame 8, and a drainage groove 81 is provided at the bottom of the support frame 8. By providing the installation area below the connection portion 7, the vibrating wire filter plate 9 can be installed below the connection portion 7. In this way, the vibrating wire filter plate 9 can effectively capture dust particles and dust-containing liquid droplets in the dust-containing gas, and can directly flow into the drainage groove 81 below and can directly flow out through the drainage groove 81 below.

[0040] Optionally, the vibrating wire filter plate 9 can adopt a vibrating wire filter plate 9 commonly used in the market.

[0041] Optionally, the drainage groove 81 can directly discharge sewage, or can be connected through the first drain pipe 19 to discharge the sewage into the box body 1, and the box body 1 discharges it uniformly.

[0042] In addition, in the embodiments of the present application, the volute 2 is communicated with the box body 1 through a support frame 8. The sewage flowing towards the air outlet of the volute 2 will directly be blown into or flow into the support frame 8, and flow from the drainage groove 81 below the support frame 8 into the box body 1 or be directly discharged, reducing the risk of uneven force on the impeller 4 caused by blockage and water accumulation.

[0043] Optionally, the vibrating wire filter plate 9 can be fixed on the support frame 8 by bolts.

[0044] As Figure 1 and 6 shown, as an implementation manner, the wet dust collector further includes a second water spraying assembly 10. The second water spraying assembly 10 includes a second water inlet pipe and a second spray head. The second water inlet pipe passes through one side of the volute 2 and is connected to the second spray head. The second spray head is arranged in the volute 2 and is oriented towards the vibrating wire filter plate 9. By providing the second spray head, the second spray head can spray water towards the vibrating wire filter plate 9 to form a water curtain, so that dust particles are wetted, weighted or coalesced when passing through the vibrating wire filter plate 9, and thus are more easily captured; it can also make the dust-containing liquid droplets that have not been discharged by swirling, blocked by the vibrating wire filter plate 9, part of which is discharged from the drainage groove 81 or enters the dewatering tank, and the other part passes through the support frame 8 and enters the box body 1; at the same time, the dust that has not been captured can be mixed with water again to form a dust-containing liquid and enter the box body 1.

[0045] Optionally, the first spray head and the second water spraying can spray water or spray water mist.

[0046] Optionally, the wet dust collector with an external motor further includes a total water inlet pipe. The total water inlet pipe is respectively communicated with the first water inlet pipe and the second water inlet pipe through a three-way valve; the other end of the total water inlet pipe passes through the connecting part 7 and is connected to an external water source. Water enters the total water inlet pipe through the external water source, then flows into the first water inlet pipe and the second water inlet pipe respectively, and then sprays water through the first spray head and the second spray head.

[0047] Optionally, water valves are provided on both the first water inlet pipe and the second water inlet pipe.

[0048] As Figure 6 shown, as an implementation manner, a sewage discharge port 12 is further provided at the bottom of the box body 1. The bottom wall of the box body 1 is inclined towards the sewage discharge port 12. By providing the sewage discharge port 12 at the bottom of the box body 1, sewage can be discharged, and the bottom wall is inclined towards the sewage discharge port 12, making it easier for the sewage to gather towards the sewage discharge port 12.

[0049] As Figure 1 shown, as an implementation manner, the wet dust collector further includes a first drain pipe 19. Both ends of the first drain pipe 19 are respectively communicated with the drainage groove 81 and the box body 1, so that the sewage in the drainage groove 81 can flow into the box body 1 through the first drain pipe 19 and thus be discharged through the drainage groove 81 of the box body 1.

[0050] Of course, the bottom of the drain trough 81 can also be opened for sewage discharge.

[0051] As Figure 1 shown, as an implementation manner, a second drain pipe 14 is further provided at the bottom of the support frame 8. The second drain pipe 14 is located on the opposite side of the first drain pipe 19. Both ends of the second drain pipe 14 are respectively communicated with the drain trough 81 and the bottom of the support frame 8. By providing the second drain pipe 14, the second drain pipe 14 is closer to the volute 2, so that the sewage in the volute 2 can directly enter the drain trough 81 through the second drain pipe 14 and then flow into the box body 1 through the first drain pipe 19, increasing the drainage volume.

[0052] As Figure 2 and 4 shown, as an implementation manner, the first air outlet 11 is arranged upward, so that the gas after dust removal can be discharged into the room; a demister 15 is further provided in the box body 1. The demister 15 is arranged at the position of the first air outlet 11. By providing the demister 15 at the first air outlet 11, the water mist will condense into water droplets after passing through the demister 15 and flow along the blades on the demister 15 into the box body 1 and be discharged from the sewage outlet 12.

[0053] Optionally, the room mentioned in the embodiments of the present application may be the interior of a factory building.

[0054] As Figure 4 shown, as an implementation manner, a first air distribution plate 16 is further provided below the demister 15. The first air distribution plate 16 is arranged horizontally, so that the air in each area of the first air outlet 11 can be discharged from the box body 1 closer to the average wind speed, avoiding the water droplets condensed on the demister 15 from being blown out of the box body 1 by too high wind speed and achieving the standard of indoor discharge.

[0055] Optionally, an inclined second air distribution plate 17 is further provided below the first air distribution plate 16. The concentrated air will be evenly dispersed through each small hole under the resistance of the second air distribution plate 17, thereby reducing the locally too high wind speed.

[0056] Optionally, the first air distribution plate 16 and the second air distribution plate 17 can be welded in the box body 1 or can be fixedly supported in the box body 1 by other parts such as brackets.

[0057] As Figure 2 shown, as an implementation manner, at least one inspection door 18 is further provided on the box body 1. By providing an inspection door 18 on the box body 1, it is convenient to inspect the parts of the box body 1.

[0058] The above are only embodiments of the present application and are not intended to limit the protection scope of the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

[0059] As mentioned above, the above is only the specific implementation manner of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, and all of them should be covered by the protection scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

[0060] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including one..." does not exclude the existence of another identical element in the process, method, article or device including the said element.

Claims

1. A wet dust collector external to a motor, characterized in that: include: The box body is provided with a first air inlet and a first air outlet, wherein the first air outlet is used to exhaust air into the room; A volute, provided with a second air inlet and a second air outlet, wherein the second air outlet is connected to the first air inlet; An external motor is arranged on one side of the volute; An impeller is disposed in the volute, and the motor is used to drive the impeller to rotate; a first water spray assembly, disposed at the position of the second air inlet, the first water spray assembly being used to spray water toward the impeller; The position of the second air inlet is also provided with a support portion protruding along one side of the volute, and the first water spray assembly includes a first nozzle and a first water inlet pipe connected to the first nozzle, the first water inlet pipe is connected to the support portion, and the first nozzle is arranged toward the impeller.

2. The wet dust collector according to claim 1, characterized in that: The volute includes a connecting portion connected to the box body, an installation area is provided below the connecting portion, a support frame is provided in the installation area, two ends of the support frame are respectively connected to the first air inlet and the second air outlet, a vibrating string filter plate is installed on the support frame, and a drainage groove is provided at the bottom of the support frame.

3. The wet dust collector according to claim 2, characterized in that: The wet dust collector also includes a second water spray assembly, which includes a second water inlet pipe and a second nozzle. The second water inlet pipe passes through one side of the volute and is connected to the second nozzle. The second nozzle is arranged in the volute and is arranged toward the vibrating string filter plate.

4. The wet dust collector according to claim 3, characterized in that: The bottom of the box body is also provided with a sewage outlet, and the bottom wall of the box body is inclined toward the sewage outlet.

5. The wet dust collector according to claim 4, characterized in that: The motor-external wet dust collector further comprises a first drainage pipe, and two ends of the first drainage pipe are respectively connected to the drainage groove and the box body.

6. The wet dust collector according to claim 5, characterized in that: A second drain pipe is also provided at the bottom of the support frame. The second drain pipe is located on a side opposite to the first drain pipe. Both ends of the second drain pipe are respectively connected to the drain groove and the bottom of the support frame.

7. The wet dust collector according to claim 1, characterized in that: The first air outlet is arranged upwards, and a defogger is further arranged in the box body, and the defogger is arranged at the position of the first air outlet.

8. The wet dust collector according to claim 7, characterized in that: A first air distribution plate is also provided below the demister, and the first air distribution plate is arranged horizontally.

9. The wet dust collector according to claim 1, characterized in that: The box body is also provided with at least one inspection door.

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