CN215539236U - Reversing type air inlet assembly and bag type dust collector - Google Patents
Reversing type air inlet assembly and bag type dust collector Download PDFInfo
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- CN215539236U CN215539236U CN202121871128.7U CN202121871128U CN215539236U CN 215539236 U CN215539236 U CN 215539236U CN 202121871128 U CN202121871128 U CN 202121871128U CN 215539236 U CN215539236 U CN 215539236U
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- type dust
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Abstract
The utility model relates to the technical field of bag type dust collectors, in particular to a reversing type air inlet assembly and a bag type dust collector; the device comprises an air inlet cavity and a connecting pipe for guiding waste gas into the air inlet cavity, wherein the other side of the air inlet cavity is provided with a mounting plate for fixing the air inlet cavity with a bag type dust collector; a detection device for detecting the particle size of the waste gas is arranged in the air inlet cavity and is electrically connected with the control unit; the air inlet cavity is communicated with the middle position of the bag type dust collector through the middle air inlet pipe; the air inlet cavity is communicated with the lower side position of the bag type dust collector through a lower air inlet pipe; the device judges the granularity of the introduced gas, and when the granularity is larger than a set threshold value, the gas enters the bag type dust collector from the lower gas inlet pipe; when the granularity is smaller than the set threshold value, the gas enters the bag type dust collector from the middle gas inlet pipe, and a proper gas inlet pipe is selected according to the difference of the granularity of dust contained in the gas so as to improve the dust collection effect of the bag type dust collector.
Description
Technical Field
The utility model relates to the technical field of bag type dust collectors, in particular to a reversing type air inlet assembly and a bag type dust collector.
Background
The bag type dust collector is a high-efficiency dust collector which utilizes a filter material to filter and separate solid dust in dust-containing gas. The bag type dust collector is widely applied to purifying dust-containing gas generated in industries such as metallurgy, mine, chemical industry, cement, power generation, grain processing and the like, and the working principle of the bag type dust collector is that the dust-containing gas is introduced into the dust collector and penetrates through a filter bag arranged in the dust collector, and dust particles are intercepted and left on the surface of the filter bag to form a dust layer. The clean air then passes through the filter bag and then out of the dust collector to capture the non-cementitious, non-fibrous industrial dust. The structure forms of the air inlet are various and are generally divided into a lower air inlet form, an upper air inlet form and a middle air inlet form according to the position of an air inlet. The bag type dust collector with the upper air inlet is complex in structure and difficult in ash removal, and is less in practical application.
In comparison, the downward-entering bag type dust collector is more suitable for collecting dust with larger granularity because the air flow in the downward-entering bag type dust collector is more disordered; the medium-entering bag type dust collector is suitable for collecting dust with small granularity and light specific gravity; the position of an air inlet pipe of the existing dust remover is fixed, so that dust with different particle sizes is conveyed into the dust remover through the same air inlet pipe, dust with larger particle size is introduced into a middle-entering type dust remover, dust with small particle size and light specific gravity is introduced into a lower-entering type bag dust remover, and the dust removing effect is poor; based on the technical background, the inventor designs a reversing type air inlet component and a bag type dust collector applying the component; the device judges the granularity of the introduced gas, and when the granularity is larger than a set threshold value, the gas enters the bag type dust collector from the lower gas inlet pipe; and when the granularity is smaller than a set threshold value, the particles enter the bag type dust collector from the middle air inlet pipe.
Disclosure of Invention
In order to solve the defects in the prior art, the utility model provides a reversing type air inlet assembly and a bag type dust collector, wherein the granularity of introduced air is judged through the reversing type air inlet assembly, and when the granularity is larger than a set threshold value, the air enters the bag type dust collector from a lower air inlet pipe; when the granularity is smaller than the set threshold value, the gas enters the bag type dust collector from the middle gas inlet pipe, and a proper gas inlet pipe is selected according to the difference of the granularity of dust contained in the gas so as to improve the dust collection effect of the bag type dust collector.
The technical scheme adopted by the utility model is as follows: a reversing type air inlet assembly comprises an air inlet cavity and a connecting pipe for guiding waste gas into the air inlet cavity, wherein the other side of the air inlet cavity is provided with a mounting plate for fixing with a bag type dust collector; a detection device for detecting the particle size of the waste gas is arranged in the air inlet cavity and is electrically connected with the control unit; the air inlet cavity is communicated with the middle position of the bag type dust collector through the middle air inlet pipe; the air inlet cavity is communicated with the lower side position of the bag type dust collector through a lower air inlet pipe.
Specifically, one end of the middle air inlet pipe is connected with the upper side of the air inlet cavity, and the other end of the middle air inlet pipe extends to the middle position of the bag type dust collector through the mounting plate; a first electromagnetic valve is arranged on the middle air inlet pipe; one end of the lower air inlet pipe is connected with the lower side of the air inlet cavity, the other end of the lower air inlet pipe extends to the bottom position of the bag type dust collector through the mounting plate, and a second electromagnetic valve is arranged on the lower air inlet pipe; the first electromagnetic valve and the second electromagnetic valve are respectively and electrically connected with the output end of the control unit.
Further, the detection device comprises a sealing plate, a detection pipeline arranged on the sealing plate, and a pipeline smoke dust instrument arranged on the detection pipeline; the sealing plate is arranged in the air inlet cavity, divides the air inlet cavity into two independent cavities and is communicated with the cavities through the detection pipeline.
Preferably, a third electromagnetic valve is arranged on the connecting pipe, and the third electromagnetic valve is electrically connected with the control unit and used for controlling the opening and closing of the whole air inlet assembly.
Optionally, the air inlet cavity is provided with a reinforcing assembly, and the reinforcing assembly is fixed with the mounting plate; the reinforcing assembly comprises a fixed frame and a fixed ring arranged on the fixed frame, and a positioning ring corresponding to the fixed ring is arranged on the mounting plate; the fixing ring is connected with the positioning ring through a rope.
The application also discloses a bag type dust collector, which comprises the reversing type air inlet component of any one embodiment; the bag type dust collector is switched between middle air inlet and lower air inlet through the reversing air inlet assembly.
The utility model achieves the following beneficial effects: the device judges the granularity of the introduced gas, and when the granularity is larger than a set threshold value, the gas enters the bag type dust collector from the lower gas inlet pipe; when the granularity is smaller than a set threshold value, the gas enters the bag type dust collector from the middle gas inlet pipe, and a proper gas inlet pipe is selected according to the difference of the granularity of dust contained in the gas so as to improve the dust collection effect of the bag type dust collector; two positioning rings corresponding to the fixing rings are arranged on the mounting plate; the fixing ring is connected with the positioning ring through a rope; through the stretching of flexible, provide the holding power for the chamber of admitting air, increased the intensity of structure.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the structure of the air inlet chamber of the present invention.
Fig. 3 is a schematic diagram of the mounting plate structure of the present invention.
Fig. 4 is a schematic view of the sealing plate structure of the present invention.
Fig. 5 is a schematic view of the fixing frame structure of the present invention.
Fig. 6 is a schematic diagram of the control unit connections of the present invention.
In the figure, 1, an air inlet cavity; 2. a connecting pipe; 3. mounting a plate; 4. a control unit; 5. a middle air inlet pipe; 6. a first solenoid valve; 7. a lower air inlet pipe; 8. a second solenoid valve; 9. a sealing plate; 10. detecting a pipeline; 11. a pipeline smoke instrument; 12. a third electromagnetic valve; 13. a fixing frame; 14. a fixing ring; 15. a positioning ring; 16. a rope.
Detailed Description
To facilitate an understanding of the present invention by those skilled in the art, specific embodiments thereof are described below with reference to the accompanying drawings.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other; the specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The position of an air inlet pipe of the existing dust remover is fixed, so that dust with different particle sizes is conveyed into the dust remover through the same air inlet pipe, dust with larger particle size is introduced into a middle-entering type dust remover, dust with small particle size and light specific gravity is introduced into a lower-entering type bag dust remover, and the dust removing effect is poor; as shown in fig. 1, the utility model provides a reversing type air inlet assembly, which comprises an air inlet cavity 1 and a connecting pipe 2 for guiding waste gas into the air inlet cavity 1, wherein the air inlet cavity 1 is fixed with a bag type dust collector through a mounting plate 3; one end of the connecting pipe 2 is communicated with the inside of the air inlet cavity 1, and the other end of the connecting pipe is connected with the waste gas; the discharged dust-containing waste gas enters the air inlet cavity 1 through the connecting pipe 2, the air inlet cavity 1 is of a closed cavity structure, and the outline of the air inlet cavity can be round or square; a detection device for detecting the particle size of the exhaust gas is arranged in the air inlet cavity 1 and is electrically connected with the control unit 4; and after detection, the waste gas with the granularity larger than the threshold value is introduced into the bag type dust collector through the lower air inlet pipe 7, and the waste gas with the granularity smaller than the threshold value is introduced into the bag type dust collector through the middle air inlet pipe 5.
As shown in fig. 2, one end of the middle air inlet pipe 5 is connected with the upper side of the air inlet cavity 1, and the other end of the middle air inlet pipe 5 extends to the middle position of the bag type dust collector through the mounting plate 3; a first electromagnetic valve 6 is arranged on the middle air inlet pipe 5, and the first electromagnetic valve 6 is electrically connected with the control unit 4; one end of a lower air inlet pipe 7 is connected with the lower side of the air inlet cavity 1, the other end of the lower air inlet pipe extends to the bottom position of the bag type dust collector through the mounting plate 3, a second electromagnetic valve 8 is arranged on the lower air inlet pipe 7, the second electromagnetic valve 8 is electrically connected with the output end of the control unit 4, and the first electromagnetic valve 6 and the second electromagnetic valve 8 are preferably normally closed electromagnetic valves suitable for severe working conditions; when the device works, when the detection device detects that the dust particle size in the waste gas is smaller than a threshold value, an electric signal is transmitted to the control unit 4, and the control unit 4 controls the first electromagnetic valve 6 to be opened; the dusty waste gas enters the bag type dust collector through the middle air inlet pipe 5, the axial speed (namely Y direction) of most of the area inside the bag chamber of the bag type dust collector is not obvious, and the tangential speed (namely z direction) is large, so that the bag type dust collector is suitable for collecting some dust with small granularity and light specific gravity; when the detection device detects that the particle size of dust in the waste gas is larger than a threshold value, an electric signal is transmitted to the control unit 4, and the control unit 4 controls the second electromagnetic valve 8 to be opened; the dust-containing waste gas enters the bag type dust collector through the lower air inlet pipe 7, a large vortex is formed in the dust hopper of the bag type dust collector, the front end and the rear end of the air flow in the bag chamber are not uniformly distributed, and the air flow direction is relatively disordered; the bag house through the lower inlet duct 7 is more suitable for collecting some dust with larger particle size because of the more turbulent air flow inside it than through the middle inlet duct 5.
The detection device comprises a sealing plate 9, a detection pipeline 10 arranged on the sealing plate 9 and a pipeline smoke and dust instrument 11 arranged on the detection pipeline 10, wherein the pipeline smoke and dust instrument 11 adopts an LD2004 in-situ smoke and dust instrument to detect the granularity of passing dust; the sealing plate 9 is arranged in the air inlet cavity 1, the air inlet cavity 1 is divided into two independent cavities, the connecting pipe 2 is communicated with the cavity on one side, and the middle air inlet pipe 5 and the lower air inlet pipe 7 are communicated with the cavity on the other side.
As shown in fig. 4, a third electromagnetic valve 12 is disposed on the connection pipe 2, the third electromagnetic valve 12 is electrically connected to the control unit 4, and the opening and closing of the whole dust collector is controlled by the third electromagnetic valve 12.
As shown in fig. 5, the structural reliability is low due to the fact that the air inlet chamber 1 extends outside; therefore, a fixed frame 13 is arranged outside the air inlet cavity 1, two fixed rings 14 are arranged on the fixed frame 13, and two positioning rings 15 corresponding to the fixed rings 14 are arranged on the mounting plate 3; the fixed ring 14 is connected with the positioning ring 15 through a rope 16; by stretching the ropes 16, a supporting force is provided for the air inlet chamber 1, and the strength of the structure is increased.
The application also discloses a bag type dust collector, which comprises the reversing type air inlet component of any one embodiment; and switching between middle air inlet and lower air inlet is performed through the reversing air inlet assembly.
The above-mentioned fixing methods, if not separately described, all use the means of common technique of those skilled in the art, such as welding, nesting, or screw fixing.
In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above-described embodiments of the present invention do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (7)
1. A reverse air intake assembly, comprising: the device comprises an air inlet cavity (1) and a connecting pipe (2) for guiding waste gas into the air inlet cavity (1), wherein the other side of the air inlet cavity (1) is provided with a mounting plate (3) for fixing with a bag type dust collector; a detection device for detecting the particle size of the exhaust gas is arranged in the air inlet cavity (1), and the detection device is electrically connected with the control unit (4); the air inlet cavity (1) is communicated with the middle position of the bag type dust collector through a middle air inlet pipe (5); the air inlet cavity (1) is communicated with the lower side position of the bag type dust collector through a lower air inlet pipe (7).
2. A reversing air induction assembly according to claim 1, further comprising: one end of the middle air inlet pipe (5) is connected with the upper side of the air inlet cavity (1), and the other end of the middle air inlet pipe (5) extends to the middle position of the bag type dust collector through the mounting plate (3); a first electromagnetic valve (6) is arranged on the middle air inlet pipe (5); one end of the lower air inlet pipe (7) is connected with the lower side of the air inlet cavity (1), the other end of the lower air inlet pipe extends to the bottom of the bag type dust collector through the mounting plate (3), and a second electromagnetic valve (8) is arranged on the lower air inlet pipe (7); the first electromagnetic valve (6) and the second electromagnetic valve (8) are respectively and electrically connected with the output end of the control unit (4).
3. A reversing air induction assembly according to claim 1, further comprising: the detection device comprises a sealing plate (9), a detection pipeline (10) arranged on the sealing plate (9), and a pipeline smoke dust instrument (11) arranged on the detection pipeline (10); the sealing plate (9) is arranged in the air inlet cavity (1), divides the air inlet cavity (1) into two independent cavities and is communicated with the cavities through the detection pipeline (10).
4. A reversing air induction assembly according to claim 1, further comprising: and a third electromagnetic valve (12) is arranged on the connecting pipe (2), and the third electromagnetic valve (12) is electrically connected with the control unit (4) and used for controlling the opening and closing of the whole air inlet assembly.
5. A reversing air induction assembly according to claim 1, further comprising: the air inlet cavity (1) is provided with a reinforcing component which is fixed with the mounting plate (3).
6. A reversing air induction assembly according to claim 1, further comprising: the reinforcing component comprises a fixed frame (13) and a fixed ring (14) arranged on the fixed frame (13), and a positioning ring (15) corresponding to the fixed ring (14) is arranged on the mounting plate (3); the fixing ring (14) is connected with the positioning ring (15) through a rope (16).
7. A bag collector, characterized in that: comprising the reversing air intake assembly of claim 1; the bag type dust collector is switched between middle air inlet and lower air inlet through the reversing air inlet assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121871128.7U CN215539236U (en) | 2021-08-11 | 2021-08-11 | Reversing type air inlet assembly and bag type dust collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121871128.7U CN215539236U (en) | 2021-08-11 | 2021-08-11 | Reversing type air inlet assembly and bag type dust collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215539236U true CN215539236U (en) | 2022-01-18 |
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ID=79834535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121871128.7U Active CN215539236U (en) | 2021-08-11 | 2021-08-11 | Reversing type air inlet assembly and bag type dust collector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215539236U (en) |
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2021
- 2021-08-11 CN CN202121871128.7U patent/CN215539236U/en active Active
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