Dual-purpose bag-type dust remover for fixed dust removal and movable dust removal
By designing a dual-purpose bag filter for both fixed and mobile dust collection, the problems of fixed dust collectors being unable to handle deposited dust and mobile dust collectors being difficult to move have been solved, achieving efficient dust cleaning and cost savings in large factories.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-31
AI Technical Summary
Existing fixed bag filters cannot handle the dust that accumulates over time, while mobile dust collectors are difficult to move in large factories, resulting in inconvenient and costly dust treatment.
Design a dual-purpose bag filter for both fixed and mobile dust collection. The fixed and mobile dust collection modes can be switched by the main control valve. Combined with a suction hose and reducer, it can adapt to different dust removal needs.
It enables efficient dust removal in large factories, saving manpower and equipment costs, improving cleanliness and working environment, and adapting to various dust removal scenarios.
Smart Images

Figure CN224056920U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of industrial dust removal technology, and in particular to a bag filter that can be used for both fixed and mobile dust removal. Background Technology
[0002] In enterprises that provide heat or power generation, such as coal-fired boilers, as well as some large foundries and cement plants, dust is the number one factor affecting the environment, and dust is mainly treated by fixed bag filters at the main dust-generating points.
[0003] Fixed baghouse dust collectors can only treat dust in specific locations. They cannot be used on pipes, stairs, and steel structure surfaces where dust accumulates over time. Only mobile industrial dust collectors can be used. However, mobile dust collectors are heavy and difficult to move. For steel structure plants with boilers such as circulating fluidized beds that are tens of meters high, mobile dust collectors are very inconvenient to use. Utility Model Content
[0004] In order to solve the problems existing in the prior art, the present invention provides a bag filter that can be used for both fixed and mobile dust collection.
[0005] The present invention provides a dual-purpose bag filter for both fixed and mobile dust collection, which adopts the following technical solution:
[0006] A dual-purpose baghouse dust collector for both fixed and mobile dust collection includes a dust collector body with two dust inlets. One dust inlet is connected to a fixed dust collection main pipe, which is connected to a multi-point fixed dust collection box. The other dust inlet is connected to a mobile dust collection main pipe. Both the mobile and fixed dust collection main pipes are equipped with main control valves. The mobile dust collection main pipe is connected to vertical dust inlet pipes that connect to each structural floor of the factory building. Each vertical dust inlet pipe is equipped with a reducing connector corresponding to each floor, and the reducing connector is equipped with a suction hose and a secondary control valve.
[0007] By adopting the above technical solution, the dust collector can switch between fixed and mobile dust collection modes through the main control valve. When mobile dust collection is required, first close the main control valve on the fixed dust collection main pipe, open the main control valve on the mobile dust collection main pipe, turn on the induced draft fan of the dust collector body, open the secondary control valve of the platform layer that needs to be cleaned, and manually move the suction hose to the area that needs to be cleaned for dust collection. In order to ensure wind pressure and better dust collection effect, generally only one branch is opened for mobile dust collection. This structure is multi-purpose and can also treat coal dust on platforms and steel beams, with obvious effects. It not only saves manpower and equipment investment costs, but also improves the cleanliness of the plant area and improves the working environment of the staff.
[0008] Optionally, the reducing joint located on the second floor or above of the factory building is a reducing tee, which is installed on the side wall of the vertical dust inlet pipe. The reducing joint located on the ground floor of the factory building is a reducing caliper, which is installed at the inlet of the vertical dust inlet pipe.
[0009] Optionally, a quick-connect fitting can be detachably installed on the reducer, and the vacuum hose can be detachably installed on the quick-connect fitting.
[0010] By adopting the above technical solution, it is convenient to install or remove the vacuum hose.
[0011] Optionally, the vacuum hose can be a corrugated hose or a steel wire reinforced hose.
[0012] Optionally, the vacuum hose is equipped with a flat nozzle.
[0013] By adopting the above technical solution, it is beneficial to gather negative pressure wind force and improve the cleaning effect.
[0014] Optionally, the discharge port of the dust collector body is connected to a storage bin.
[0015] By adopting the above technical solution, dust can be stored, and if it is pulverized coal, it can be recycled.
[0016] Optionally, the main control valve may be an electric butterfly valve.
[0017] Optionally, a wafer-type manual butterfly valve can be selected as the secondary control valve. Attached Figure Description
[0018] Figure 1 This is a structural schematic diagram of a dual-purpose bag filter for both fixed and mobile dust collection, according to an embodiment of this utility model.
[0019] Explanation of reference numerals in the attached drawings: 1. Main body of the dust collector; 2. Storage compartment; 3. Fixed dust collection main pipe; 4. Fixed dust collection box; 5. Mobile dust collection main pipe; 6. Vertical dust inlet pipe; 7. Main control valve; 8. Reducing tee; 9. Reducing two-way valve; 10. Secondary control valve; 11. Quick connector; 12. Suction hose. Detailed Implementation
[0020] The following is in conjunction with the appendix Figure 1 The present invention will be described in further detail below.
[0021] This utility model discloses a dual-purpose bag filter for both fixed and mobile dust collection. (Refer to...) Figure 1The dual-purpose bag filter for both fixed and mobile dust collection includes a dust collector body 1, which is installed on the roof of the factory building. The discharge port of the dust collector body 1 is connected to the storage bin 2. Two dust inlets are symmetrically arranged on the perimeter of the dust collector body 1. One of the dust inlets is connected to a fixed dust collection main pipe 3. The end of the fixed dust collection main pipe 3 away from the dust collector body 1 is connected to a multi-point fixed dust collection box 4 to absorb dust from multiple fixed points.
[0022] Reference Figure 1 The main body 1 of the dust collector is connected to another dust inlet to a mobile dust collection main pipe 5. Both the mobile dust collection main pipe 5 and the fixed dust collection main pipe 3 are equipped with a main control valve 7 for controlling opening and closing. In this embodiment, the main control valve 7 is an electric butterfly valve. The mobile dust collection main pipe 5 is connected to a vertical dust inlet pipe 6 that runs vertically into the factory building through a right-angle bend. The vertical dust inlet pipe 6 passes through multiple floors in sequence until it reaches the ground floor.
[0023] Reference Figure 1 A reducing tee 8 is installed on the side wall of the vertical dust inlet pipe 6 corresponding to the second floor and above, and a reducing dummy 9 is installed at the inlet of the vertical dust inlet pipe 6 corresponding to the ground floor. The reducing structure can reduce the pipe diameter to two-thirds or one-half of the original diameter. Both the reducing tee 8 and the reducing dummy 9 are equipped with a secondary control valve 10 to control opening and closing. In this embodiment, the secondary control valve 10 is a wafer manual butterfly valve.
[0024] Reference Figure 1 Both the reducing tee 8 and the reducing tee 9 can be detachably fitted with quick connectors 11, and quick connectors 11 can be detachably fitted with vacuum hoses 12. Vacuum hoses 12 can be corrugated hoses or steel wire skeleton hoses, and are equipped with flat suction heads.
[0025] The implementation principle of the dual-purpose bag filter for fixed and mobile dust collection in this embodiment is as follows: the dust collector can switch between fixed and mobile suction modes through the main control valve 7. When mobile dust collection is required, first close the main control valve 7 on the fixed dust collection main pipe 3, open the main control valve 7 on the mobile dust collection main pipe 5, turn on the induced draft fan of the dust collector body 1, open the secondary control valve 10 of the platform layer that needs to be cleaned, and manually move the suction hose 12 to the area that needs to be cleaned for suction. In order to ensure wind pressure and better suction effect, generally only one branch is opened for mobile suction.
[0026] This multi-functional structure can also treat coal dust from platforms and steel beams, with significant results. It not only saves on labor and equipment investment costs but also improves the cleanliness of the plant area and the working environment for staff. For power plants requiring taller buildings, larger bag filters should be used, along with high-volume, high-pressure induced draft fans. The fan head of the dust collector should be utilized as much as possible, and the ductwork and air velocity should be appropriately designed, minimizing bends and diameter changes to reduce pressure drop in the pipeline.
[0027] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A dual-purpose bag filter for both fixed and mobile dust collection, characterized in that: The dust collector comprises a dust collector body (1), two dust inlets are arranged on the dust collector body (1), one of the dust inlets is connected with a fixed dust collecting main pipe (3), the fixed dust collecting main pipe (3) is connected with a multi-point fixed dust collecting box (4), the other dust inlet is connected with a movable dust collecting main pipe (5), the movable dust collecting main pipe (5) and the fixed dust collecting main pipe (3) are both provided with a main control valve (7), the movable dust collecting main pipe (5) is connected with vertical dust inlets (6) connected with each structure layer of a factory building, and each vertical dust inlet (6) is provided with a reducing joint corresponding to each layer, and a dust suction hose (12) and a secondary control valve (10) are arranged on the reducing joint.
2. The fixed and mobile dust collector according to claim 1, wherein: The reducing joint located at the second layer and above of the factory building is a reducing tee (8), the reducing tee (8) is arranged on the side wall of the vertical dust inlet (6), and the reducing joint located at the ground layer of the factory building is a reducing tee (9), the reducing tee (9) is arranged on the inlet of the vertical dust inlet (6).
3. The fixed and mobile dust collector according to claim 1, wherein: A quick connector (11) is detachably arranged on the reducing joint, and the dust suction hose (12) is detachably arranged on the quick connector (11).
4. The fixed and mobile dust collector according to claim 1, wherein: The dust suction hose (12) is selected from a corrugated hose or a steel wire skeleton hose.
5. The fixed and mobile dust collector according to claim 1, wherein: The dust suction hose (12) is provided with a flat suction head.
6. The fixed and mobile dust collector according to claim 1, wherein: A storage bin (2) is connected with the discharge port of the dust collector body (1).
7. The fixed and mobile dust collector according to claim 1, wherein: The main control valve (7) is selected from an electric butterfly valve.
8. The fixed and mobile dust collector according to claim 1, wherein: The secondary control valve (10) is selected from a pair of clamping manual butterfly valve.