Industrial waste gas dust separation device and use method

Abstract

The invention discloses an industrial waste gas dust separation device and a using method, and belongs to the technical field of waste gas treatment.The industrial waste gas dust separation device comprises a base, a separation box is fixedly installed at the upper end of the base, a gas inlet pipe and a gas outlet pipe are arranged on the separation box, and two filtering assemblies are arranged in the separation box; one filtering assembly is a primary filtering assembly, the other filtering assembly is a secondary filtering assembly, the primary filtering assembly is arranged close to the output end of the air inlet pipe, and the secondary filtering assembly is arranged close to the input end of the exhaust pipe, so that an exhaust emission path sequentially passes through the primary filtering assembly and the secondary filtering assembly; the filter assemblies are of annular structures, and the two filter assemblies can rotate so as to adjust the exhaust emission path and the action positions of the filter assemblies. According to the industrial waste gas dust separation device and the use method, the filter element assembly is arranged to be of an annular structure, so that the filter element assembly can be adjusted relative to a waste gas emission path, all parts of the filter element assembly are uniformly consumed, and the service life of the filter element assembly is prolonged.

Description

Technical Field

[0001] The invention belongs to the technical field of waste gas treatment, and in particular relates to an industrial waste gas dust separation device and a use method thereof. Background Art

[0002] When food processing plants process raw materials, industrial waste gas is generated, and the composition of the main pollutants in the waste gas varies depending on the processed products. For example, when frying wheat, the waste gas generated is mainly particulate matter. At present, the waste gas treatment process usually involves first collecting the waste gas through a collection pipe, then performing dust removal through a cyclone dust collector, and then discharging the waste gas that meets the emission standards through medium and low pressure centrifugal fans.

[0003] The cyclone dust collector is composed of an air inlet pipe, an exhaust pipe, a cylinder, a cone, and an ash hopper. Its working principle is to use the centrifugal force to separate the dust particles from the airflow and capture them on the wall, and then rely on gravity to make the dust fall into the ash hopper. Because the cyclone dust collector is prone to wear at the inlet and conical part when dealing with high-concentration or abrasive dust, the cyclone dust collector is in a more serious wear condition. Therefore, in the actual production process, a filter element will be set inside the collection channel to pre-treat the exhaust gas.

[0004] However, the existing filter element is generally fixedly installed in the collection channel, and the exhaust gas is always discharged at a fixed angle, which causes the contact position between the exhaust gas and the filter element to remain constant, and thus makes the surface consumption of the filter element uneven. The filter element part close to the exhaust gas discharge center is relatively easy to be consumed, while the filter element part far from the exhaust gas discharge center cannot be fully utilized.

[0005] To this end, we propose an industrial waste gas dust separation device and a method of use to solve the above problems. Summary of the invention

[0006] The purpose of the present invention is to solve the problem of uneven filter element consumption in the prior art, resulting in poor exhaust gas filtering effect, and to propose an industrial exhaust gas dust separation device and a method of use.

[0007] In order to achieve the above object, the present invention adopts the following technical solutions:

[0008] An industrial waste gas dust separation device comprises a base, a separation box is fixedly mounted on the upper end of the base, an air intake pipe and an exhaust pipe are arranged on the separation box, two groups of filter components are arranged in the separation box, one of the filter components is a primary filter component, and the other filter component is a secondary filter component, the primary filter component is arranged near the output end of the air intake pipe, and the secondary filter component is arranged near the input end of the exhaust pipe, so that the exhaust gas discharge path passes through the primary filter component and the secondary filter component in sequence;

[0009] The filter assembly is annular in structure, and the two filter assemblies are rotatable to adjust the exhaust gas discharge path and the action position of the filter assembly.

[0010] Preferably, the peripheral side walls of the filter components are in contact with each other, and the two filter components can rotate relative to each other to change the relative positions of the two filter components;

[0011] The primary filter assembly and the secondary filter assembly can be arranged in a specific size ratio according to preset requirements.

[0012] Preferably, the outer peripheral side wall of one of the filter components fits with the inner peripheral side wall of the other filter component.

[0013] Preferably, the outer peripheral side wall of one of the filter components fits with the outer peripheral side wall of another filter component.

[0014] Preferably, the filter assembly comprises:

[0015] An annular member, the annular member comprises an inner ring, an outer ring is arranged outside the inner ring, the inner ring and the outer ring are arranged concentrically, a plurality of connecting members are fixedly connected between the inner ring and the outer ring, the plurality of connecting members are equidistantly distributed around the circumference of the inner ring, and a mounting groove is provided on a side wall of the connecting member;

[0016] A filter element block, wherein the filter element block is an arc-shaped block, and the arc-shaped block is inserted and installed in an adjacent installation groove;

[0017] A gear ring is fixedly connected to the annular member, and the gear rings on the two filter assemblies mesh with each other, so that the two filter assemblies can rotate relative to each other; a driving gear is meshed on one side of one of the gear rings, and the driving gear is driven by a motor.

[0018] Preferably, the separation box includes a box body and a box cover, the filter assembly is rotatably installed in the box body, an inspection port is opened on the box cover, the position of the inspection port corresponds to the position of the filter assembly, a sealing plate is arranged at the inspection port, and a sealing member is commonly provided on the outside of the two filter assemblies, and the sealing member is fixedly connected to the inner wall of the box body.

[0019] Preferably, a lifting shaft capable of moving up and down is installed on the base, a through opening is provided at the bottom of the box body, and the upper end of the lifting shaft passes through the through opening and is fixedly connected to the lower surface of the sealing plate.

[0020] Preferably, the connecting piece is a U-shaped structure, so that an annular groove is formed between the inner ring, the connecting piece and the outer ring, and a lifting assembly is provided in the annular groove. The lifting assembly is movably connected to the lifting shaft. When the lifting shaft moves upward, the lifting assembly can be driven to move upward to push the filter element block upward from the installation groove.

[0021] Preferably, the lifting assembly includes a lifting ring, a sliding sleeve is provided on the lifting shaft, a plurality of connecting rods are fixedly connected between the sliding sleeve and the lifting ring, and the bottom of the box body is provided with through holes corresponding to the connecting rods; a fixing sleeve is fixedly connected to the outside of the lifting shaft, and a spring is connected between the upper surface of the fixing sleeve and the lower surface of the sliding sleeve.

[0022] The present invention also discloses a method for using an industrial waste gas dust separation device, comprising the following steps:

[0023] The exhaust gas enters the air inlet pipe from the output end of the collection pipe, passes through the primary filter assembly and the secondary filter assembly in sequence, and is discharged from the exhaust pipe to the input end of the cyclone dust collector;

[0024] The exhaust gas after preliminary filtration enters the cyclone dust collector for further treatment;

[0025] The treated waste gas is discharged to the outside through medium and low pressure centrifugal fans;

[0026] Wherein, both the primary filter assembly and the secondary filter assembly can be rotated to adjust the exhaust gas discharge path and the action position of the filter assembly.

[0027] To sum up, the technical effects and advantages of the present invention are as follows: the industrial waste gas dust separation device and use method, by setting the filter element assembly as a ring structure, the filter element assembly can be adjusted relative to the exhaust gas discharge path, so that the exhaust gas contacts different positions of the filter assembly, and the filter assembly is evenly consumed everywhere, thereby extending the service life of the filter assembly.

[0028] By making the peripheral side walls of the filter components fit together, the risk of exhaust gas leakage can be reduced, and the filter components can be linked to each other so that they rotate simultaneously.

[0029] Furthermore, the present invention can set the size ratio between the primary filter component and the secondary filter component according to the different proportions of dust in the exhaust gas, thereby making the consumption cycles of the two filter components consistent, facilitating maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 An exploded view of the present invention;

[0032] Figure 3 It is a structural schematic diagram of the ring member in the present invention;

[0033] Figure 4 It is a structural schematic diagram of the jacking assembly in the present invention;

[0034] Figure 5 It is a structural schematic diagram of the lifting shaft in the present invention;

[0035] Figure 6 It is a schematic diagram of the connection relationship between the driving gear and the annular member in the present invention;

[0036] Figure 7 It is a structural schematic diagram of the separation box in the present invention;

[0037] Figure 8 It is a schematic diagram of the internal structure of the present invention;

[0038] Fig. 9 For the present invention Figure 8 A is an enlarged structural diagram;

[0039] Fig.10 It is a schematic diagram of the positional relationship of two groups of filter components in the present invention;

[0040] Fig.11 The use status of the present invention is shown in FIG. Figure 1 ;

[0041] Fig.12 The use status of the present invention is shown in FIG. Figure 2 ;

[0042] Fig.13 It is a schematic diagram of the state of replacing the filter element block in the present invention;

[0043] Fig.14 This is a flow chart of waste gas treatment in the present invention.

[0044] In the figure: 1. base; 2. separation box;

[0045] 21. Box body; 22. Box cover; 23. Sealing element;

[0046] 31. Lifting shaft; 32. Sealing plate; 33. Fixed sleeve; 34. Spring;

[0047] 41. Ring member; 42. Filter element block; 43. Lifting assembly; 44. Driving gear;

[0048] 51. Intake pipe; 52. Exhaust pipe;

[0049] 221, inspection port; 231, annular portion; 232, docking portion;

[0050] 411, inner ring; 412, outer ring; 413, gear ring; 414, connecting piece; 415, mounting groove;

[0051] 431. lifting ring; 432. sliding sleeve; 433. connecting rod. DETAILED DESCRIPTION

[0052] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0053] When pre-dusting the exhaust gas, the filter assembly is generally set on the path that the exhaust gas must pass through, which will cause the central part of the filter assembly to be consumed more severely, while the edge is not fully used, resulting in uneven consumption of the filter assembly. At the same time, when multiple groups of filter assemblies are provided to achieve graded filtration of the exhaust gas, due to the different dust content ratios inside the exhaust gas, it is difficult to keep the consumption cycle of the filter assemblies at each level consistent, and thus the filter assemblies need to be frequently disassembled and maintained, increasing maintenance costs. In order to solve the above problems, this application adopts the following technical solutions:

[0054] like Figure 1 - Fig.14 As shown, an industrial waste gas dust separation device includes a base 1, a separation box 2 is fixedly installed on the upper end of the base 1, an air inlet pipe 51 and an exhaust pipe 52 are arranged on the separation box 2, and two groups of filter components are arranged in the separation box 2, one of which is a primary filter component, and the other is a secondary filter component. Among them, the primary filter component can filter sticky dust, and the secondary filter component can filter fibrous dust. Since the cyclone dust collector is suitable for removing non-sticky and non-fibrous dust, the primary filter component and the secondary filter component can be used as a functional supplement to the cyclone dust collector, and can be combined with the cyclone dust collector to form a cyclone dust removal component. The primary filter component is arranged near the output end of the air inlet pipe 51, and the secondary filter component is arranged near the input end of the exhaust pipe 52, so that the exhaust gas discharge path passes through the primary filter component and the secondary filter component in sequence. Secondary filtration of the exhaust gas is achieved.

[0055] The filter assembly is annular in structure, and the two filter assemblies can rotate. Since the positions of the air inlet pipe 51 and the exhaust pipe 52 are fixed, the exhaust gas discharge path is unchanged. When the filter assembly rotates, the contact position between the filter assembly and the exhaust gas changes to adjust the exhaust gas discharge path and the action position of the filter assembly. In addition, the exhaust gas can contact different positions of the filter assembly, so that the filter assembly is evenly consumed everywhere, thereby extending the service life of the filter assembly.

[0056] The peripheral side walls of the filter components are fitted to each other, wherein the two filter components can be arranged to be nested inside and outside, or arranged in parallel, and the two filter components can rotate relative to each other to change the relative positions of the two filter components.

[0057] In order to keep the replacement cycle of the primary filter assembly and the secondary filter assembly consistent, the primary filter assembly and the secondary filter assembly can be set at a specific size ratio according to preset requirements. Specifically, the size ratio of the filter assembly can be set according to the mixing ratio of different dusts in the exhaust gas, such as: when the ratio of sticky dust to fibrous dust is 2:1, the size ratio of the primary filter assembly to the secondary filter assembly is 2:1, so that the consumption cycle of the primary filter assembly and the secondary filter assembly is consistent, so as to facilitate the replacement and maintenance of the filter assembly.

[0058] In one of the embodiments, the outer peripheral side wall of one filter component fits with the inner peripheral side wall of another filter component, which is an inside-outside nested arrangement.

[0059] In one embodiment of the present application, the outer peripheral side wall of one filter component fits with the outer peripheral side wall of another filter component, which is a parallel arrangement.

[0060] Specifically, in this embodiment, the filter assembly includes: an annular member 41 and a filter element block 42 .

[0061] Among them, the annular member 41 includes an inner ring 411, an outer ring 412 is provided outside the inner ring 411, the inner ring 411 and the outer ring 412 are concentrically arranged, and a plurality of connecting members 414 are fixedly connected between the inner ring 411 and the outer ring 412. The connecting members 414 are fixedly connected at the upper end surfaces of the inner ring 411 and the outer ring 412. The plurality of connecting members 414 are equidistantly distributed around the circumference of the inner ring 411. The connecting members 414 are plate-like structures, and each connecting member 414 is parallel to the radial direction of the inner ring 411 and the outer ring 412. An installation groove 415 is opened on the side wall of the connecting member 414. The installation groove 415 is arranged on the side wall of the two connecting members 414 close to each other, and the plurality of installation grooves 415 are arranged circumferentially around the inner ring 411 and the outer ring 412.

[0062] Among them, the filter element block 42 is an arc-shaped block, which is inserted and installed in the adjacent installation groove 415. Multiple filter element blocks 42 are arranged around the peripheral side walls of the inner ring 411 and the outer ring 412 to form an annular filter unit. When the ring member 41 rotates, the exhaust gas can act on different filter element blocks 42.

[0063] In order to realize the driving of the annular member 41, a toothed ring 413 is fixedly connected to the annular member 41, specifically, the toothed ring 413 is fixedly connected to the side wall of the outer ring 412. The toothed rings 413 on the two filter assemblies are meshed with each other, so that the two filter assemblies can rotate relative to each other. It should be noted that the relative rotation here includes that the two filter assemblies can be linked and rotated at the same time to realize the transmission of power; one side of one of the toothed rings 413 is meshed with a driving gear 44, and the driving gear 44 is driven by a motor. Under the drive of the motor, the two toothed rings 413 can be relatively rotated at a constant transmission ratio, which can not only make the filter assembly and the exhaust gas emission path change relatively, but also make the two filter assemblies interlock with each other and rotate synchronously without setting an additional driving source. And because the transmission ratio between the two filter assemblies corresponds to the content ratio of different dusts, the consumption cycle of the two filter assemblies can be synchronized, and the two filter assemblies can be synchronously maintained and replaced.

[0064] In order to improve the airtightness and make the exhaust gas run along a predetermined track, the separation box 2 includes a box body 21 and a box cover 22. The filter assembly is rotatably installed in the box body 21. An inspection port 221 is provided on the box cover 22. The position of the inspection port 221 corresponds to the position of the filter assembly. A sealing plate 32 is provided at the inspection port 221. When the sealing plate 32 is removed, the filter assembly can be disassembled. At the same time, a sealing member 23 is provided outside the two filter assemblies. The sealing member 23 is fixedly connected to the inner wall of the box body 21. The sealing member 23 includes an annular portion 231 and a docking portion 232. The annular portion 231 is sleeved on the outside of the filter assembly, and the docking portion 232 is provided between the two filter assemblies to prevent the exhaust gas from leaking from other places.

[0065] Furthermore, an exhaust device may be installed at the output end of the exhaust pipe 52 to extract the exhaust gas and prevent the exhaust gas from deviating from the predetermined path.

[0066] In order to facilitate the inspection and maintenance of the filter assembly, a lifting shaft 31 that can move up and down is installed on the base 1. A through hole is provided at the bottom of the box body 21. The upper end of the lifting shaft 31 passes through the through hole and is fixedly connected to the lower surface of the sealing plate 32. It should be noted that a hydraulic mechanism for driving the lifting shaft 31 is provided in the base 1. When the lifting shaft 31 rises, the sealing plate 32 can be driven to rise.

[0067] In order to facilitate the rapid disassembly and assembly of each filter element block 42, the connecting piece 414 is a U-shaped structure, so that an annular groove is formed between the inner ring 411, the connecting piece 414 and the outer ring 412, and a lifting component 43 is provided in the annular groove. The lifting component 43 is movably connected to the lifting shaft 31. When the lifting shaft 31 moves upward, the lifting component 43 can be driven to move upward, and the filter element block 42 can be pushed upward from the installation groove 415 to facilitate the replacement of the filter element block 42.

[0068] The lifting assembly 43 includes a lifting ring 431, a sleeve 432 is sleeved on the lifting shaft 31, a plurality of connecting rods 433 are fixedly connected between the sleeve 432 and the lifting ring 431, a through hole corresponding to the connecting rod 433 is provided at the bottom of the box body 21, and a sealing ring can be provided inside the through hole to improve the sealing performance between the connecting rod 433 and the box body 21. A fixed sleeve 33 is fixedly connected to the outside of the lifting shaft 31, and a spring 34 is connected between the upper surface of the fixed sleeve 33 and the lower surface of the sleeve 432.

[0069] When the sealing plate 32 closes the inspection port 221, the lifting shaft 31 is at the lowest position, and the spring 34 is at its original length at this time. When the lifting shaft 31 moves upward, it will drive the sealing plate 32 and the lifting ring 431 to move upward, so that the inspection port 221 is gradually opened and the filter element block 42 is gradually moved upward. When the sliding sleeve 432 acts on the bottom of the box body 21, as the lifting shaft 31 drives the fixing sleeve 33 to continue to move upward, the spring 34 will be compressed, while the position of the filter element block 42 remains unchanged. As the lifting shaft 31 continues to move upward, the sealing plate 32 will be further moved upward, so that the sealing plate 32 is away from the filter element block 42, thereby leaving enough space for disassembly and assembly of the filter element block 42.

[0070] The present application also provides a method for using an industrial waste gas and dust separation device, which is applied to the industrial waste gas and dust separation device and includes the following steps:

[0071] The exhaust gas enters the air inlet pipe 51 from the output end of the collection pipe, is filtered by the primary filter assembly and the secondary filter assembly in sequence, and is discharged from the exhaust pipe 52 to the input end of the cyclone dust collector;

[0072] The exhaust gas after preliminary filtration enters the cyclone dust collector for further treatment;

[0073] That is to say, the dust separation device of the present application is arranged between the collection pipe and the cyclone dust collector, as a pre-treatment device, and together with the cyclone dust collector, forms a cyclone dust collection assembly. Fig.14 shown.

[0074] The treated waste gas is discharged to the outside through medium and low pressure centrifugal fans;

[0075] The primary filter assembly and the secondary filter assembly can both be rotated to adjust the exhaust gas discharge path and the action position of the filter assembly, so that the exhaust gas contacts the filter element blocks 42 at different positions, thereby extending the service life of the filter element and improving the purification effect of the filter element.

[0076] More importantly, in this embodiment, the primary filter assembly and the secondary filter assembly are designed according to a certain size ratio, which is consistent with the ratio of sticky dust to fibrous dust, so that the expected consumption cycles of the primary filter assembly and the secondary filter assembly are consistent, and thus the maintenance cycles of the two filter assemblies can be kept consistent, thereby reducing maintenance costs.

[0077] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An industrial waste gas dust separation device, comprising a base (1), characterized in that: A separation box (2) is fixedly mounted on the upper end of the base (1), an air intake pipe (51) and an exhaust pipe (52) are arranged on the separation box (2), two groups of filter components are arranged in the separation box (2), one of the filter components is a primary filter component, and the other filter component is a secondary filter component, the primary filter component is arranged near the output end of the air intake pipe (51), and the secondary filter component is arranged near the input end of the exhaust pipe (52), so that the exhaust gas discharge path passes through the primary filter component and the secondary filter component in sequence; The filter assembly is annular in structure, and the two filter assemblies are rotatable to adjust the exhaust gas discharge path and the action position of the filter assembly.

2. The industrial waste gas dust separation device according to claim 1, characterized in that: The peripheral side walls of the filter components are in contact with each other, and the two filter components can rotate relative to each other to change the relative positions of the two filter components; The primary filter assembly and the secondary filter assembly can be arranged in a specific size ratio according to preset requirements.

3. The industrial waste gas dust separation device according to claim 2, characterized in that: The outer peripheral side wall of one of the filter components is in contact with the inner peripheral side wall of the other filter component.

4. The industrial waste gas dust separation device according to claim 2, characterized in that: The outer peripheral side wall of one of the filter components is in contact with the outer peripheral side wall of the other filter component.

5. The industrial waste gas dust separation device according to claim 4, characterized in that: The filter assembly comprises: An annular member (41), the annular member (41) comprising an inner ring (411), an outer ring (412) being arranged outside the inner ring (411), the inner ring (411) and the outer ring (412) being arranged concentrically, a plurality of connecting members (414) being fixedly connected between the inner ring (411) and the outer ring (412), the plurality of connecting members (414) being equidistantly distributed around the circumference of the inner ring (411), and a mounting groove (415) being arranged on a side wall of the connecting member (414); A filter element block (42), wherein the filter element block (42) is an arc-shaped block, and the arc-shaped block is inserted and installed in an adjacent installation groove (415); A gear ring (413) is fixedly connected to the annular member (41), and the gear rings (413) on the two filter assemblies mesh with each other, so that the two filter assemblies can rotate relative to each other; a driving gear (44) is meshed on one side of one of the gear rings (413), and the driving gear (44) is driven by a motor.

6. The industrial waste gas dust separation device according to claim 5, characterized in that: The separation box (2) comprises a box body (21) and a box cover (22); the filter assembly is rotatably mounted in the box body (21); an inspection port (221) is provided on the box cover (22); the position of the inspection port (221) corresponds to the position of the filter assembly; a sealing plate (32) is provided at the inspection port (221); a sealing member (23) is provided outside the two filter assemblies; the sealing member (23) is fixedly connected to the inner wall of the box body (21).

7. The industrial waste gas dust separation device according to claim 6, characterized in that: A lifting shaft (31) capable of moving up and down is installed on the base (1), a through hole is provided at the bottom of the box body (21), and the upper end of the lifting shaft (31) passes through the through hole and is fixedly connected to the lower surface of the sealing plate (32).

8. The industrial waste gas dust separation device according to claim 7, characterized in that: The connecting piece (414) is a U-shaped structure, so that an annular notch is formed between the inner ring (411), the connecting piece (414) and the outer ring (412), and a lifting component (43) is provided in the annular notch. The lifting component (43) is movably connected to the lifting shaft (31). When the lifting shaft (31) moves upward, the lifting component (43) can be driven to move upward, so that the filter element block (42) is pushed upward from the installation groove (415).

9. The industrial waste gas dust separation device according to claim 8, characterized in that: The lifting assembly (43) comprises a lifting ring (431), a sliding sleeve (432) is sleeved on the lifting shaft (31), a plurality of connecting rods (433) are fixedly connected between the sliding sleeve (432) and the lifting ring (431), and a through hole corresponding to the connecting rod (433) is provided at the bottom of the box body (21); a fixing sleeve (33) is fixedly connected to the outside of the lifting shaft (31), and a spring (34) is connected between the upper surface of the fixing sleeve (33) and the lower surface of the sliding sleeve (432).

10. A method for using an industrial waste gas and dust separation device, applied to the industrial waste gas and dust separation device according to any one of claims 1 to 9, characterized in that: The following steps are involved: The exhaust gas enters the air inlet pipe (51) from the output end of the collection pipe, is filtered by the primary filter assembly and the secondary filter assembly in sequence, and is then discharged from the exhaust pipe (52) to the input end of the cyclone dust collector; The exhaust gas after preliminary filtration enters the cyclone dust collector for further treatment; The treated waste gas is discharged to the outside through medium and low pressure centrifugal fans; Wherein, both the primary filter assembly and the secondary filter assembly can be rotated to adjust the exhaust gas discharge path and the action position of the filter assembly.

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