Pulse baghouse dust collection equipment

Abstract

The utility model provides a kind of bag type pulse dust removal equipment, including basic dust removal part, upper clean gas chamber, pulse generating part, air inlet and air outlet, basic dust removal part includes multiple bag cages and short filter bag, and located in upper clean gas chamber, pulse generating part includes at least one row of pulse valve for periodically vibrating short filter bag.Using this scheme, flue gas enters upper clean gas chamber from air inlet, passes through basic dust removal part, and the dust carried in flue gas is intercepted by short filter bag in bag cage, and the clean gas after filtration is discharged through air outlet, and the pulse generating part shakes short filter bag regularly, so that the dust adhered to short filter bag falls off.And short filter bag is selected in upper clean gas chamber, compared with traditional long filter bag, it has double advantages, one is strong anti-breakage, stress distribution of short filter bag is more uniform under airflow impact, and the second is low operation and maintenance cost, when local damage, only short filter bag corresponding to basic dust removal part needs to be replaced, avoiding the whole scrapping situation when long filter bag is used.

Description

[0001] This application claims priority to the patent application filed on May 26, 2025, with China National Intellectual Property Administration, application number 2025210514999, entitled "Bag Pulse Dust Collector". Technical Field

[0002] This utility model relates to the field of pulse dust removal technology, specifically to a bag-type pulse dust removal device. Background Technology

[0003] Bag pulse dust collectors are a type of equipment that enables green production. They have high dust removal efficiency and can be widely used in various industrial production fields. They are mainly used to treat and recover industrial flue gas, which can reduce raw material loss, protect employee health, and achieve clean production.

[0004] Currently, bag-type pulse dust collectors are widely used in industrial production, significantly improving dust removal efficiency and enabling enterprises to achieve green and environmentally friendly production. However, once the equipment malfunctions, it will cause very large losses, and the frequent replacement of damaged filter bags makes the cost of repairing the equipment high. Utility Model Content

[0005] This invention provides a bag-type pulse dust collector to solve the problem of high maintenance costs caused by frequent replacement of damaged filter bags in the prior art.

[0006] To achieve the above objectives, according to one aspect of the present invention, a bag-type pulse dust collector is provided, comprising a basic dust removal section, an upper clean air chamber, a pulse generator, an air inlet, and an air outlet. The basic dust removal section includes multiple bag cages and short filter bags. The diameter of the short filter bags is 130-180 mm, and the length of the short filter bags is 3500-4500 mm. Each short filter bag is located in a bag cage. The basic dust removal section is located in the upper clean air chamber. The pulse generator includes at least one row of pulse valves for periodically vibrating the short filter bags. The air inlet is connected to the upper clean air chamber, and the air outlet is located on the top of the housing away from the air inlet. The pulse generator is connected to the basic dust removal section to achieve periodic vibration of the short filter bags.

[0007] Furthermore, the upper clean air chamber includes multiple filter chambers, and there are multiple basic dust removal units, which are distributed in multiple filter chambers.

[0008] Furthermore, the basic dust removal section within the filter chamber is multi-layered, with each layer having the same structure. By employing multiple layers, the contact area and time between the flue gas and the short filter bags are increased, thereby improving dust removal efficiency. Simultaneously, the identical structural design of each layer facilitates standardized production and maintenance of the equipment.

[0009] Furthermore, the bag filter also includes a lower clean air chamber, which includes an air inlet chamber, and the upper clean air chamber is connected to the lower clean air chamber through the air inlet chamber.

[0010] Furthermore, the lower clean air chamber includes an ash collection assembly located below the air inlet chamber. The ash collection assembly includes an ash hopper and a collection box disposed below the ash hopper.

[0011] Furthermore, the bottom of the ash hopper is equipped with an ash discharge port and an ash discharge valve. The ash discharge valve controls the opening and closing of the ash discharge port to achieve periodic ash discharge from the ash hopper.

[0012] Furthermore, the bag filter also includes a cooling chamber and a cooling component. The cooling chamber is connected to the air inlet chamber, and the cooling component is located inside the cooling chamber to cool the flue gas input into the air inlet.

[0013] Furthermore, the refrigeration assembly includes a first temperature sensor and a refrigeration chamber, which are located at opposite ends of the refrigeration chamber in the height direction.

[0014] Furthermore, the bag filter also includes a dehumidification chamber and a dehumidification component. The dehumidification component is located inside the dehumidification chamber. One end of the dehumidification chamber is connected to the air inlet, and the other end of the dehumidification chamber is connected to the refrigeration chamber. The dehumidification component includes a second temperature sensor and a heating rod, both of which are located at the top of the dehumidification chamber.

[0015] Furthermore, the bag filter also includes a fan, a first outlet pipe and a second outlet pipe. One end of the first outlet pipe is connected to the outlet, and the other end of the first outlet pipe is connected to the inlet of the fan. One end of the second outlet pipe is connected to the outlet of the fan, and the other end of the second outlet pipe is connected to the outside.

[0016] Applying the technical solution of this utility model, flue gas enters the upper clean air chamber through the inlet and passes through the basic dust removal section. The dust carried in the flue gas is intercepted by the short filter bags in the bag cage, and the filtered clean gas is discharged through the outlet. The pulse generator periodically shakes the short filter bags, causing the dust attached to the short filter bags to fall off, maintaining the air permeability and dust removal efficiency of the short filter bags. Furthermore, the use of short filter bags in the upper clean air chamber has two advantages compared to traditional long filter bags: firstly, they have strong resistance to damage, and the stress distribution of short filter bags is more uniform under airflow impact; secondly, the operation and maintenance costs are low, and when local damage occurs, only the corresponding short filter bag in the basic dust removal section needs to be replaced, avoiding the situation of complete scrapping when using long filter bags.

[0017] To enhance the maintainability and ease of operation of the equipment, a maintenance platform has been added to the outside of the equipment. Located on one side of the equipment, the platform is connected to the upper and lower clean air chambers via a ladder, facilitating the replacement of damaged short filter bags and the overall maintenance and repair of the equipment by operators. The maintenance platform is equipped with guardrails to ensure the safety of operators when working at heights. Attached Figure Description

[0018] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0019] Figure 1 A schematic diagram of the structure of the bag pulse dust collector provided in an embodiment of the present invention is shown;

[0020] Figure 2 It shows Figure 1 Schematic diagram of the structure of the intermediate refrigeration chamber;

[0021] Figure 3 It shows Figure 1 Schematic diagram of the dehumidification chamber in the middle;

[0022] Figure 4 A partial top view of the upper air chamber provided in an embodiment of the present invention is shown.

[0023] The above figures include the following reference numerals:

[0024] 10. Upper clean air chamber; 11. Filter chamber; 12. Basic dust removal section; 121. Bag cage;

[0025] 20. Lower clean air chamber; 21. Air inlet chamber; 22. Ash collection assembly; 221. Ash hopper; 2211. Ash discharge port; 2212. Ash discharge valve;

[0026] 30. Air inlet; 40. Air outlet;

[0027] 50. Pulse generator; 51. Pulse valve;

[0028] 60. Cooling chamber; 61. Cooling assembly; 611. First temperature sensor; 612. Cooling box;

[0029] 70. Dehumidification chamber; 71. Dehumidification assembly; 711. Second temperature sensor; 712. Heating rod;

[0030] 81. Fan; 82. First exhaust pipe; 83. Second exhaust pipe. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0032] As attached Figures 1 to 4 As shown, an embodiment of this utility model provides a bag-type pulse dust collector, including a basic dust removal section 12, an upper clean air chamber 10, a pulse generator 50, an air inlet 30, and an air outlet 40. The basic dust removal section 12 includes multiple bag cages 121 and short filter bags. The diameter of the short filter bags is 130-180 mm, and the length of the short filter bags is 3500-4500 mm. Each short filter bag is located in a bag cage 121. The basic dust removal section 12 is located in the upper clean air chamber 10. The pulse generator 50 includes at least one row of pulse valves 51 for periodically vibrating the short filter bags. The air inlet 30 is connected to the upper clean air chamber 10, and the air outlet 40 is located on the top of the housing away from the air inlet 30. The pulse generator 50 is connected to the basic dust removal section 12 to realize the periodic vibration of the short filter bags.

[0033] In this scheme, flue gas enters the upper clean air chamber 10 through the inlet 30 and passes through the basic dust removal section 12. The dust carried in the flue gas is intercepted by the short filter bags in the bag cage 121. The filtered clean gas is discharged through the outlet 40. The pulse generator 50 periodically shakes the short filter bags, causing the dust attached to them to fall off, maintaining the air permeability and dust removal efficiency of the short filter bags. Furthermore, the use of short filter bags in the upper clean air chamber 10 has two advantages over traditional long filter bags: firstly, they have strong resistance to damage, and the stress distribution of short filter bags is more uniform under airflow impact; secondly, the operation and maintenance costs are low. When a part is damaged, only the corresponding short filter bag in the basic dust removal section 12 needs to be replaced, avoiding the situation of complete scrapping when using long filter bags.

[0034] In this embodiment, the upper clean air chamber 10 includes multiple filter chambers 11 and multiple basic dust removal units 12, which are distributed within the multiple filter chambers 11. By setting multiple filter chambers 11 and multiple basic dust removal units 12, the space of the upper clean air chamber 10 can be rationally utilized, realizing multi-stage filtration and treatment of flue gas, improving the equipment's flue gas processing capacity, and maintaining high dust removal efficiency.

[0035] In this embodiment, the basic dust removal section 12 within the filter chamber 11 is multi-layered, with each layer having the same structure. By setting multiple layers of basic dust removal sections 12, the contact area and time between the flue gas and the short filter bags are increased, thereby improving dust removal efficiency. Simultaneously, the identical structural design of each layer of basic dust removal sections 12 facilitates standardized production and maintenance of the equipment. The dust removal efficiency of the equipment is significantly improved, and the maintenance and replacement of filter bags are more convenient. The flue gas passes through multiple layers of short filter bags sequentially from bottom to top or from left to right, and each layer of short filter bags can effectively capture dust particles of different sizes, ultimately achieving a deep purification effect.

[0036] In this embodiment, the bag filter pulse dust collector also includes a lower clean air chamber 20, which includes an inlet chamber 21. The upper clean air chamber 10 is connected to the lower clean air chamber 20 through the inlet chamber 21. Flue gas first enters through the inlet chamber 21, and large dust particles settle into the lower clean air chamber 20 under gravity. The flue gas then enters the upper clean air chamber 10 for further filtration. This design facilitates the initial settling of large dust particles, reduces wear and clogging of the filter bags, makes the equipment operation more stable, and extends the service life of the filter bags.

[0037] In this embodiment, the lower clean air chamber 20 includes a dust collection component 22, which is located below the air inlet chamber 21. The dust collection component 22 includes a dust hopper 221 and a collection box disposed below the dust hopper 221. The dust hopper 221 collects dust particles settling from the air inlet chamber 21, while the collection box stores and periodically cleans the dust. This enhances the dust handling capacity of the equipment and makes maintenance more convenient.

[0038] In this embodiment, the bottom of the ash hopper 221 is provided with an ash discharge port 2211 and an ash discharge valve 2212. The ash discharge valve 2212 controls the opening and closing of the ash discharge port 2211 to achieve periodic ash discharge from the ash hopper 221. By controlling the ash discharge valve 2212, the dust in the ash hopper 221 is periodically discharged, avoiding the accumulation of dust in the ash hopper 221 and secondary dust generation. The dust treatment effect of the equipment is more stable, and the maintenance workload is reduced.

[0039] like Figure 2 As shown, in this embodiment, the bag filter pulse dust collector further includes a cooling chamber 60 and a cooling component 61. The cooling chamber 60 is connected to the inlet chamber 21, and the cooling component 61 is located inside the cooling chamber 60 to cool the flue gas input through the inlet 30. The flue gas passes through the inlet 30, enters the upper clean air chamber 10 after passing through the cooling chamber 60, and cools the inlet flue gas to prevent the flue gas temperature from being too high and damaging the short filter bags.

[0040] In this embodiment, the refrigeration assembly 61 includes a first temperature sensor 611 and a refrigeration chamber 612, which are located at opposite ends of the height of the refrigeration chamber 60. The first temperature sensor 611 in the refrigeration assembly 61 can detect the temperature in the refrigeration chamber 60. When the internal temperature in the refrigeration chamber 60 is too high, the refrigeration chamber 612 starts to work to cool the flue gas and prevent the flue gas temperature from being too high and burning the short filter bags after entering the upper clean air chamber 10.

[0041] like Figure 3 As shown, in this embodiment, the bag filter pulse dust collector further includes a dehumidification chamber 70 and a dehumidification component 71. The dehumidification component 71 is located inside the dehumidification chamber 70. One end of the dehumidification chamber 70 is connected to the air inlet 30, and the other end is connected to the cooling chamber 60. The dehumidification component 71 includes a second temperature sensor 711 and a heating rod 712, both located at the top of the dehumidification chamber 70. The heating rod 712 in the dehumidification component 71 heats and dries the flue gas, reducing the agglomeration of wet dust on the short filter bags and preventing clogging of the filter pores. Simultaneously, the second temperature sensor 711 can detect the temperature in the dehumidification chamber 70, stopping the heating of the heating rod 712 when the temperature is too high to avoid overheating.

[0042] In this embodiment, the bag filter pulse dust collector further includes a fan 81, a first outlet pipe 82, and a second outlet pipe 83. One end of the first outlet pipe 82 is connected to the outlet 40, and the other end of the first outlet pipe 82 is connected to the inlet of the fan 81. One end of the second outlet pipe 83 is connected to the outlet of the fan 81, and the other end of the second outlet pipe 83 is connected to the outside. The filtered clean gas, under the action of the fan 81, enters the first outlet pipe 82 through the outlet 40, then passes through the fan 81, and is discharged into the atmosphere through the second outlet pipe 83.

[0043] To enhance the maintainability and ease of operation of the equipment, a maintenance platform was added to the outside of the equipment. Located on one side of the equipment, the platform is connected to the upper clean air chamber 10 and the lower clean air chamber 20 via a ladder, facilitating the replacement of damaged short filter bags and the overall maintenance and repair of the equipment by operators. The maintenance platform is equipped with guardrails to ensure the safety of operators when working at heights.

[0044] The above description is merely an optional embodiment of this solution and is not intended to limit the solution. Various modifications and variations can be made to this solution by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this solution should be included within the scope of protection of this solution.

[0045] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0046] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as exemplary only and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0047] In the description of this solution, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing this solution and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this solution. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0048] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0049] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this solution.

Claims

1. A bag-type pulse dust collector, characterized in that, The system includes a basic dust removal unit (12), an upper clean air chamber (10), a pulse generator (50), an air inlet (30), and an air outlet (40). The basic dust removal unit (12) includes multiple bag cages (121) and short filter bags. The diameter of the short filter bags is 130-180 mm, and the length of the short filter bags is 3500-4500 mm. Each short filter bag is located in one of the bag cages (121). The basic dust removal unit (12) is located in the upper clean air chamber (10). The pulse generator (50) includes at least one row of pulse valves (51) for periodically vibrating the short filter bags. The air inlet (30) is connected to the upper clean air chamber (10), and the air outlet (40) is located on the top of the housing away from the air inlet (30). The pulse generator (50) is connected to the basic dust removal unit (12) to realize the periodic vibration of the short filter bags.

2. The bag-type pulse dust collector according to claim 1, characterized in that, The upper air purification chamber (10) includes multiple filter chambers (11), and there are multiple basic dust removal units (12), which are distributed in multiple filter chambers (11).

3. The bag-type pulse dust collector according to claim 2, characterized in that, The basic dust removal section (12) inside the filter chamber (11) is multi-layered, and each layer of the basic dust removal section (12) has the same structure.

4. The bag-type pulse dust collector according to claim 2, characterized in that, The bag filter also includes a lower clean air chamber (20), which includes an air inlet chamber (21). The upper clean air chamber (10) is connected to the lower clean air chamber (20) through the air inlet chamber (21).

5. The bag filter pulse dust collector according to claim 4, characterized in that, The lower air chamber (20) includes an ash collection component (22), which is located below the air inlet chamber (21). The ash collection component (22) includes an ash hopper (221) and a collection box disposed below the ash hopper (221).

6. The bag filter pulse dust collector according to claim 5, characterized in that, The bottom of the ash hopper (221) is provided with an ash discharge port (2211) and an ash discharge valve (2212). The ash discharge valve (2212) controls the opening and closing of the ash discharge port (2211) to realize the periodic ash discharge of the ash hopper (221).

7. The bag-type pulse dust collector according to claim 4, characterized in that, The bag-type pulse dust collector also includes a cooling chamber (60) and a cooling component (61). The cooling chamber (60) is connected to the air inlet chamber (21), and the cooling component (61) is located in the cooling chamber (60) and is used to cool the flue gas input into the air inlet (30).

8. The bag filter pulse dust collector according to claim 7, characterized in that, The refrigeration assembly (61) includes a first temperature sensor (611) and a refrigeration box (612), with the first temperature sensor (611) and the refrigeration box (612) located at opposite ends of the height of the refrigeration chamber (60).

9. The bag-type pulse dust collector according to claim 7, characterized in that, The bag-type pulse dust collector also includes a dehumidification chamber (70) and a dehumidification component (71). The dehumidification component (71) is located inside the dehumidification chamber (70). One end of the dehumidification chamber (70) is connected to the air inlet (30), and the other end of the dehumidification chamber (70) is connected to the refrigeration chamber (60). The dehumidification component (71) includes a second temperature sensor (711) and a heating rod (712). The second temperature sensor (711) and the heating rod (712) are both located at the top of the dehumidification chamber (70).

10. The bag-type pulse dust collector according to claim 4, characterized in that, The bag filter also includes a fan (81), a first outlet pipe (82) and a second outlet pipe (83). One end of the first outlet pipe (82) is connected to the outlet (40), and the other end of the first outlet pipe (82) is connected to the inlet of the fan (81). One end of the second outlet pipe (83) is connected to the outlet of the fan (81), and the other end of the second outlet pipe (83) is connected to the outside.

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