A self-excited spray wet dust collector

Abstract

This application discloses a self-excited spray wet dust collector, relating to the field of gas dust removal technology. It includes a dust collector body with an air inlet on one side and an air outlet on the top. The dust collector body has a liquid collection hopper, and a rotary valve is located below the hopper. The rotary valve includes a valve body, a valve plate, and a valve stem. The valve plate is fitted inside the valve body, and the valve stem passes through the valve body and is fixedly connected to the valve plate. The valve stem is threadedly connected to a fastening nut that abuts against the outer wall of the valve body. A settling tank for collecting sludge is located below the valve body, and the valve body is threadedly connected to the settling tank. When the settled sludge reaches a certain amount, the rotary valve is closed, and the settling tank is disassembled. This achieves pre-treatment separation of sludge and waste liquid, reducing the waste liquid content in the solid-liquid mixture, facilitating subsequent separation treatment, and improving the problem of low separation efficiency between sludge and waste liquid.

Description

Technical Field

[0001] This application relates to the field of gas dust removal technology, and in particular to a self-excited spray wet dust collector. Background Technology

[0002] Early wet scrubbers had problems such as high energy consumption and easy clogging. The self-excited technology uses the kinetic energy of the airflow to drive water circulation. When the dust-laden airflow enters the scrubber through the negative pressure of the fan, the high-speed airflow impacts the water surface to form water splashes and mist. The dust is captured by inertial collision and agglomeration.

[0003] In existing self-excited spray wet dust collectors, during slag discharge operations, the operator opens the slag discharge valve at the bottom of the liquid collection hopper. Under the action of gravity, the solid slag that settles at the bottom of the liquid collection hopper mixes with the water in the pool to form a solid-liquid mixture, which is then naturally discharged from the dust collector through the valve channel.

[0004] Regarding the aforementioned technologies, the inventors believe that when the self-excited spray wet dust collector discharges sludge during the gravity settling stage, the waste liquid will carry the sludge along with it, requiring traditional processes such as sedimentation, evaporation, and filtration to further separate the solid-liquid mixture; this results in low efficiency. Utility Model Content

[0005] The purpose of this application is to provide a self-excited spray wet dust collector to improve the problem of low separation efficiency of sludge and waste liquid in self-excited spray wet dust collectors.

[0006] The self-excited spray wet dust collector provided in this application adopts the following technical solution:

[0007] A self-excited spray wet dust collector includes a dust collector body with an air inlet on one side and an air outlet on the top. A base is located below the dust collector body, and the base has several support rods for supporting the dust collector body. The dust collector body has a liquid collection hopper, and a rotary valve is located below the liquid collection hopper. The rotary valve includes a valve body, a valve plate, and a valve stem. The valve plate is sleeved within the valve body, and the valve stem passes through the valve body and is fixedly connected to the valve plate. The valve stem is threadedly connected to a fastening nut that abuts against the outer wall of the valve body. A settling tank for collecting sediment is located below the valve body, and the valve body is threadedly connected to the settling tank.

[0008] By adopting the above technical solution, the sediment settled in the collection hopper is collected by setting up a sedimentation tank, the rotating valve is closed to separate the collection hopper from the sedimentation tank, and after disassembling the sedimentation tank, the collected sediment in the sedimentation tank is removed, thus separating the settled sediment from the waste liquid in advance, which effectively simplifies the subsequent separation and treatment process and improves the problem of low separation efficiency.

[0009] Optionally, the valve body is provided with a sealing ring that fits against the side wall of the valve plate.

[0010] By adopting the above technical solution and setting a sealing ring, the valve body and valve plate are protected, and the fit between the valve body and valve plate is made tighter, reducing water leakage when the rotary valve is closed.

[0011] Optionally, the end of the valve stem away from the valve plate is provided with several rotating rods.

[0012] By adopting the above technical solution and setting a rotating rod, the valve plate can be rotated more easily, making the disassembly and removal of sediment smoother.

[0013] Optionally, the rotating rod is provided with a rotating handle.

[0014] By adopting the above technical solution and setting a rotating handle, more points of force are provided for the rotating rod, making it easier to rotate the valve plate.

[0015] Optionally, the settling tank includes a tank body and a bottom plate, and the tank body is provided with a plurality of fixing bolts that are threadedly connected to the bottom plate.

[0016] By adopting the above technical solution, the settling box is connected to the bottom plate by fixed bolts. The bottom plate is separated from the box by removing the bolts, so that the sludge falls directly from the bottom of the box and is discharged, thus achieving a convenient and efficient sludge discharge operation.

[0017] Optionally, the base plate is provided with a plurality of positioning rods, and the housing is provided with positioning slots for the positioning rods to be inserted.

[0018] By adopting the above technical solution and setting positioning rods and positioning slots, the positioning of the base plate and the box body is facilitated, and the base plate is fixed to the box body more quickly.

[0019] Optionally, the bottom plate is provided with a sealing ring, which fits against the inner side wall of the box.

[0020] By adopting the above technical solution and setting a sealing ring, the fit between the bottom plate and the tank is made tighter, reducing water leakage.

[0021] Optionally, the enclosure is provided with a viewing window.

[0022] By adopting the above technical solution, a transparent viewing window is set on the side of the settling tank, which allows for real-time and clear observation of the accumulation status and thickness changes of the internal sediment. This provides an intuitive basis for accurately judging the timing of cleaning and avoids excessive accumulation or premature cleaning.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By setting up a settling tank, the sediment settled in the collection hopper is collected. The rotary valve is closed to separate the collection hopper from the settling tank. After disassembling the settling tank, the collected sediment in the settling tank is removed. The settled sediment is separated from the waste liquid in advance, which effectively simplifies the subsequent separation and treatment process and improves the problem of low separation efficiency.

[0025] 2. The settling tank is connected to the bottom plate by fixed bolts. The bottom plate is separated from the tank by removing the bolts, allowing the sludge to fall directly from the bottom of the tank for discharge, thus achieving convenient and efficient sludge discharge operation.

[0026] 3. A transparent viewing window is installed on the side of the settling tank, which allows for real-time and clear observation of the accumulation status and thickness changes of the internal sediment. This provides an intuitive basis for accurately judging the timing of cleaning and avoids excessive accumulation or premature cleaning. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of a self-excited spray wet dust collector.

[0028] Figure 2 This is a schematic diagram of the rotary valve structure;

[0029] Figure 3 This is a schematic diagram of the settling box structure.

[0030] In the diagram, 1. Dust collector body; 11. Air inlet; 12. Air outlet; 13. Base; 14. Support rod; 15. Liquid collection hopper; 2. Rotary valve; 21. Valve body; 211. Sealing ring; 22. Valve plate; 23. Valve stem; 231. Rotating rod; 232. Rotating handle; 24. Fastening nut; 3. Settling tank; 31. Tank body; 32. Base plate; 33. Fixing bolt; 34. Positioning rod; 35. Positioning slot; 36. Sealing ring; 37. Viewing window. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 - Appendix Figure 3 This application will be described in further detail below.

[0032] A self-excited spray wet dust collector, referring to Figure 1 The dust collector includes a box-shaped dust collector body 1. An air inlet 11 for waste to enter is fixedly installed on one side of the dust collector body 1 by welding. An air outlet 12 for purified air to be discharged is fixedly installed on the top of the dust collector body 1 by welding. A horizontal base 13 is provided below the dust collector body 1. Several support rods 14 for supporting the dust collector body 1 are fixedly installed on the base 13 by welding. In this embodiment, the number of support rods 14 is preferably 4.

[0033] Reference Figure 1The dust collector body 1 is fixedly installed with a liquid collection hopper 15 by welding. The liquid collection hopper 15 is in the shape of an inverted trapezoidal column. A rotary valve 2 is installed below the liquid collection hopper 15. The rotary valve 2 is fixedly connected to the settling tank 3 by bolts.

[0034] Reference Figure 2 The rotary valve 2 includes a valve body 21, a valve plate 22, and a valve stem 23. The valve body 21 is in the shape of an annular column, and flanges are welded and fixed at both ends of the valve body 21. The valve plate 22 is sleeved inside the valve body 21, and the side wall of the valve plate 22 fits against the inner side wall of the valve body 21. The valve plate 22 is in the shape of a circle. The valve stem 23 passes through the valve body 21 and is fixed to the valve plate 22 by a key. The valve stem 23 is in the shape of a round rod.

[0035] Reference Figure 2 The valve body 21 is fitted with a sealing ring 211 that fits against the side wall of the valve plate 22. The sealing ring 211 has a hole through which the valve stem 23 passes. The sealing ring 211 is hollow cylindrical. In this embodiment, the material of the longitudinal sealing ring 211 is preferably rubber. The valve stem 23 is threadedly connected with a fastening nut 24 that abuts against the outer wall of the valve body 21. When the rotating valve 2 is closed, the fastening nut 24 is tightened to fix the position of the valve stem 23, so that the valve plate 22 remains in the state of blocking the valve body 21, thereby achieving the isolation effect.

[0036] Reference Figure 2 The valve stem 23 is fixedly provided with several rotating rods 231 by welding at the end away from the valve plate 22, which facilitates the opening and closing of the valve plate 22 inside the rotary valve 2. The rotating rods 231 are cylindrical, and in this embodiment, the number of rotating rods 231 is preferably 4. The rotating rods 231 are fixedly provided with a spherical rotating handle by welding. The rotating handle increases the contact area between the operator and the rotating rods 231, which facilitates the opening and closing of the valve plate 22.

[0037] Reference Figure 1 and 3 A settling tank 3 for collecting sediment is provided below the valve body 21. The settling tank 3 includes a cylindrical body 31 and a circular plate-shaped bottom plate 32. The valve body 21 is fixed to the body 31 by a threaded connection. The body 31 is provided with a number of fixing bolts 33 that are threaded to the bottom plate 32. In this embodiment, the number of fixing bolts 33 is preferably 6. When it is necessary to treat the sediment and waste liquid, rotate the valve stem 23 to close the rotating valve 2, disassemble the body 31 from the valve body 21, and separate the settling tank 3. This achieves the separation and pretreatment of sediment and waste liquid, reduces the content of waste liquid in the solid-liquid mixture, facilitates subsequent separation treatment, and improves the problem of low separation efficiency of sediment and waste liquid.

[0038] Reference Figure 3The base plate 32 is fixedly provided with a number of positioning rods 34 by welding. The positioning rods 34 are round rods. In this embodiment, the number of positioning rods 34 is preferably 6. The symmetrical and evenly distributed design of the positioning rods 34 forms a stable spatial positioning matrix. The box body 31 is provided with positioning slots 35 for the positioning rods 34 to be inserted. After the positioning rods 34 are inserted and fixed with the positioning slots 35, stress concentration or assembly jamming caused by misalignment during the connection of the fixing bolts 33 is avoided, which significantly improves the coaxiality and planar fit of the component connection.

[0039] Reference Figure 3 The bottom plate 32 is fixedly provided with a sealing ring 36 by embedding. The sealing ring 36 is in the shape of an annular circular plate. In this embodiment, the material of the sealing ring is preferably rubber. The sealing ring 36 fits against the inner wall of the box 31, reducing the assembly gap between the bottom plate 32 and the box 31, and effectively preventing the loss of the internal medium of the box 31 due to leakage, which would cause pollution to the environment.

[0040] Reference Figure 3 The housing 31 is fixedly provided with a viewing window 37 by embedding. The height of the sediment accumulation in the settling tank 3 can be observed in real time through the viewing window 37 to avoid the valve body 21 being blocked due to excessive sediment, which would affect the normal operation of the rotary valve 2. In this embodiment, the material of the viewing window 37 is preferably tempered glass.

[0041] The implementation principle of this application embodiment is as follows:

[0042] After the self-excited spray wet dust collector performs dust removal operation, the sludge accumulation in the settling tank 3 is observed through the viewing window 37. When the settled sludge reaches a certain amount, the rotary valve 2 is closed, and the bottom plate 32 located at the bottom of the settling tank 3 is disassembled, allowing the collected sludge to be discharged under gravity. This achieves the separation and pretreatment of sludge and waste liquid, reduces the content of waste liquid in the solid-liquid mixture, facilitates subsequent separation and treatment, and improves the problem of low separation efficiency between sludge and waste liquid.

[0043] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A self-excited spray wet dust collector, comprising a dust collector body (1), wherein an air inlet (11) is provided on one side of the dust collector body (1), and an air outlet (12) is provided on the top of the dust collector body (1); a base (13) is provided below the dust collector body (1), and the base (13) is provided with a plurality of support rods (14) for supporting the dust collector body (1); characterized in that: The dust collector body (1) is provided with a liquid collection hopper (15), and a rotary valve (2) is provided below the liquid collection hopper (15). The rotary valve (2) includes a valve body (21), a valve plate (22), and a valve stem (23). The valve plate (22) is sleeved inside the valve body (21), and the valve stem (23) passes through the valve body (21) and is fixedly connected to the valve plate (22). The valve stem (23) is threadedly connected with a fastening nut (24) that abuts against the outer wall of the valve body (21). A settling tank (3) for collecting sludge is provided below the valve body (21), and the valve body (21) and the settling tank (3) are connected by bolts.

2. The self-excited spray wet dust collector according to claim 1, characterized in that: The valve body (21) is provided with a sealing ring (211) that fits against the side wall of the valve plate (22).

3. The self-excited spray wet dust collector according to claim 2, characterized in that: The valve stem (23) is provided with a plurality of rotating rods (231) at the end away from the valve plate (22).

4. The self-excited spray wet dust collector according to claim 3, characterized in that: The rotating rod (231) is provided with a rotating handle (232).

5. The self-excited spray wet dust collector according to claim 1, characterized in that: The settling box (3) includes a box body (31) and a bottom plate (32). The box body (31) is provided with a number of fixing bolts (33) that are threadedly connected to the bottom plate (32).

6. The self-excited spray wet dust collector according to claim 5, characterized in that: The base plate (32) is provided with a plurality of positioning rods (34), and the housing (31) is provided with positioning slots (35) for the positioning rods (34) to be inserted.

7. The self-excited spray wet dust collector according to claim 6, characterized in that: The bottom plate (32) is provided with a sealing ring (36), which is in contact with the inner side wall of the box (31).

8. The self-excited spray wet dust collector according to claim 5, characterized in that: The housing (31) is provided with a viewing window (37).

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