Workshop purification and dust removal device
By combining dynamic adsorption devices and chemical spraying, the problems of clogging and incomplete purification of dust removal equipment in the workshop when dust concentration changes suddenly are solved, achieving efficient dust removal and environmental protection and energy saving.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG XIANGHAI PURIFICATION ENG CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-05-19
AI Technical Summary
Existing dust removal equipment in workshops is prone to clogging when dust concentration changes abruptly, resulting in low dust removal efficiency, difficult maintenance, and incomplete purification, especially with a low removal rate for PM2.5.
The system employs a combination of dynamic adsorption and chemical spraying. The dynamic adsorption device includes a secondary adsorption component and a primary adsorption component. The motor is controlled in real time by a dust concentration sensor to achieve dynamic expansion of the adsorption components. The spraying purification device uses alkaline reagents to neutralize acidic dust and recycles the purification liquid.
It improves dust removal efficiency, prevents dust escape, enhances purification quality, and enables the recycling of purification liquid, reducing maintenance difficulty.
Smart Images

Figure CN224252444U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of dust removal equipment, specifically referring to a workshop purification and dust removal device. Background Technology
[0002] Existing workshop dust removal equipment has the following technical defects:
[0003] 1. Traditional housings use a static filtration structure. Referring to the utility model patent with publication number CN203281175U, a workshop dust removal and purification device is disclosed. When the dust concentration changes suddenly, especially under high concentration conditions, it is prone to clogging, resulting in low dust removal and purification efficiency.
[0004] 2. Activated carbon filters require frequent disassembly and cleaning, making maintenance difficult. Furthermore, the single adsorption method results in a low removal rate of PM2.5, which can easily lead to incomplete purification. Utility Model Content
[0005] In order to overcome the shortcomings of the prior art, this utility model provides a workshop purification and dust removal device to solve the problems of low efficiency, difficult maintenance and incomplete purification of fixed adsorption structures.
[0006] The technical solution adopted by this utility model is as follows:
[0007] This solution provides a workshop purification and dust removal device, including a dust collection box. The dust collection box is hollow inside and has a hinged and sealed maintenance door on one side. An exhaust fan is connected to the top of the dust collection box. An exhaust hood is connected to one side of the exhaust fan outside the dust collection box to collect dust in the workshop. An exhaust pipe is connected to the top of the exhaust fan inside the dust collection box.
[0008] It also includes a dynamic adsorption device located inside the dust collection box, which is located at the lower end of the exhaust pipe. The dynamic adsorption device includes a secondary adsorption component located inside the dust collection box, a drive component that extends and retracts along the secondary adsorption component, and a primary adsorption component located outside the drive component. In the initial state, the primary adsorption component is arranged in a surrounding shape outside the secondary adsorption component.
[0009] It also includes a spray purification device located at the lower end of the exhaust pipe and the dynamic adsorption device. The spray purification device includes a water tank located outside the dust collection box, which contains a purification liquid, preferably an alkaline reagent, for neutralizing acidic dust. One side of the water tank is connected to a spray pipe extending into the dust collection box via a water pump. The spray pipe has nozzles evenly distributed on it and is set to open upwards.
[0010] Furthermore, the secondary adsorption component includes a secondary purification box disposed inside the dust removal box. The secondary purification box is hollow inside and has a secondary adsorption layer on its outer periphery. The secondary adsorption layer is a nanofiber adsorption layer.
[0011] Furthermore, the primary adsorption assembly includes a primary arc-shaped plate covering the periphery of the secondary purification box. The primary arc-shaped plate is slidably connected to the secondary purification box via an adjusting rod. The outer side of the primary arc-shaped plate is provided with a primary adsorption layer, which may be an activated carbon adsorption layer.
[0012] Furthermore, the drive assembly includes a motor located inside the secondary purification chamber. The output shaft of the motor is provided with a driving bevel gear on its outer side, and an adjusting threaded rod is rotatably provided on the inner wall of the secondary purification chamber. The outer side of the adjusting threaded rod is provided with a driven bevel gear that meshes with the driving bevel gear, and an adjusting seat is threadedly fitted on the outer side of the adjusting threaded rod. The adjusting seat is connected to one end of the adjusting connecting rod to form an internal limit.
[0013] Preferably, a buffer assembly is provided between the primary arc plate and the secondary purification box to prevent collision between the two when recovering the secondary adsorption assembly. The buffer assembly includes a protective plate connected to the outside of the adjusting rod, and a spring is provided between the protective plate and the primary arc plate for buffering.
[0014] Furthermore, a dust concentration sensor is provided on one side of the exhaust hood, and a central processing unit is provided on the dust collection box. The dust concentration sensor and the motor are both connected to the central processing unit. When the dust concentration sensor detects a sudden increase in the dust concentration in the workshop, it sends a signal to the central processing unit, which then controls the working status of the motor.
[0015] Furthermore, the spray purification device also includes a filter plate located below the spray pipe, a receiving pipe located below the filter plate, and a recovery pipe connecting the receiving pipe and the water tank. The purified liquid is recycled after filtration and sedimentation, which is environmentally friendly and energy-saving.
[0016] The beneficial effects of this utility model by adopting the above structure are as follows:
[0017] 1. By setting up a dynamic adsorption device, the primary adsorption component is deployed in real time based on the dust concentration, so that the secondary adsorption component can simultaneously perform adsorption and dust removal work, effectively meeting the adsorption efficiency requirements.
[0018] 2. By utilizing the synergistic effect of chemical spraying combined with adsorption, dust escape is prevented, further improving the purification quality. Moreover, the purified liquid can be reused after filtration, achieving a recycling and energy-saving effect. Attached Figure Description
[0019] Figure 1 A schematic diagram of the overall structure of a workshop purification and dust removal device provided in this solution;
[0020] Figure 2 Cross-section of this scheme Figure 1 ;
[0021] Figure 3 Cross-section of this scheme Figure 2 ;
[0022] Figure 4 Cross-section of this scheme Figure 3 ;
[0023] Figure 5 for Figure 3 A magnified view of part A in the diagram.
[0024] Among them, 1. Dust collection box, 2. Exhaust fan, 3. Dynamic adsorption device, 4. Spray purification device, 5. Dust concentration sensor, 6. Central processing unit, 7. Buffer component, 8. Motor II;
[0025] 11. Inspection door;
[0026] 21. Suction hood; 22. Exhaust duct; 23. Exhaust branch duct;
[0027] 31. Secondary adsorption component; 32. Driving component; 33. Primary adsorption component;
[0028] 311. Secondary purification chamber; 312. Secondary adsorption layer;
[0029] 321. Motor 1; 322. Driving bevel gear; 323. Adjusting threaded rod; 324. Driven bevel gear; 325. Adjusting seat;
[0030] 331. Primary arc plate; 332. Primary adsorption layer; 333. Adjusting linkage;
[0031] 41. Water tank; 42. Spray pipe; 43. Filter plate; 44. Receiver pipe; 45. Recovery pipe; 46. Water pump; 47. Sprayer head;
[0032] 71. Protective plate; 72. Spring;
[0033] 81. Shaft.
[0034] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation
[0035] Example 1
[0036] refer to Figure 1 and Figure 2As shown, this utility model provides a workshop purification and dust removal device, including a dust collection box 1. The dust collection box 1 is hollow inside and has a hinged and sealed inspection door 11 on one side for easy daily maintenance. An exhaust fan 2 is connected to the top of the dust collection box 1. An exhaust hood 21 is connected to the outside of the dust collection box 1 on one side for collecting dust in the workshop. An exhaust pipe 22 is connected to the top of the dust collection box 1 inside the exhaust fan 2.
[0037] In practical applications of the above structure, multiple sets of induced draft fans 2 can be set up and distributed in multiple corners of the workshop, which will have a better dust removal effect.
[0038] To address the problem of low dust removal efficiency of fixed adsorption, a dynamic adsorption device 3 is installed inside the dust collection box 1, located at the lower end of the exhaust pipe 22. The dynamic adsorption device 3 includes a secondary adsorption component 31 installed inside the dust collection box 1, a drive component 32 that extends and retracts along the secondary adsorption component 31, and a primary adsorption component 33 located outside the drive component 32. In the initial state, the primary adsorption component 33 is arranged in a surrounding shape outside the secondary adsorption component 31.
[0039] refer to Figure 2 As shown, the secondary adsorption component 31 includes a secondary purification chamber 311 disposed within the dust collection chamber 1. The secondary purification chamber 311 is hollow inside and has a secondary adsorption layer 312 on its outer periphery. The primary adsorption component 33 includes a primary arc-shaped plate 331 covering the periphery of the secondary purification chamber 311. The primary arc-shaped plate 331 is slidably connected to the secondary purification chamber 311 via an adjusting rod 333. A primary adsorption layer 332 is disposed on the outer side of the primary arc-shaped plate 331. Preferably, the secondary adsorption layer 312 is a nanofiber adsorption layer, and the primary adsorption layer 332 can be an activated carbon adsorption layer.
[0040] Combination Figure 3 and Figure 5 As shown, the drive assembly 32 includes a motor 321 disposed inside the secondary purification chamber 311. A driving bevel gear 322 is provided on the outer side of the output shaft of the motor 321. An adjusting threaded rod 323 is rotatably disposed on the inner wall of the secondary purification chamber 311. A driven bevel gear 324 meshing with the driving bevel gear 322 is provided on the outer side of the adjusting threaded rod 323. An adjusting seat 325 is threaded onto the outer side of the adjusting threaded rod 323. The adjusting seat 325 is connected to one end of an adjusting connecting rod 333, forming an internal limit. It should be noted that... Figure 2This is only one embodiment. In practical applications, the shape of the secondary purification box 311 is not limited to this. As long as the adjusting linkage 333 is in the retracted state, the primary arc plate 331 surrounds the outside of the secondary purification box 311. At this time, the outer edges of the primary arc plates 331 abut against each other, and only the primary arc plates 331 can be used for dust collection. In this embodiment, four sets of primary arc plates 331 are evenly arranged on the outside of the secondary purification box 311. Similarly, four sets of driven bevel gears 324 are also arranged. It is necessary to ensure that the axis of the driving bevel gear 322 intersects with the axis of each driven bevel gear 324, usually at 90° to achieve orthogonal transmission. The four driven bevel gears 324 are arranged in a cross-shaped symmetrical distribution around the driving bevel gear 322, and their axes should be in the same plane and spaced 90° apart from each other.
[0041] As a further example:
[0042] A dust concentration sensor 5 is provided on one side of the exhaust hood, and a central processing unit 6 is provided on the dust collection box 1. The dust concentration sensor 5 and the motor 321 are both connected to the central processing unit 6. When the dust concentration sensor 5 detects a sudden increase in the dust concentration in the workshop, it sends a signal to the central processing unit 6, which then controls the working status of the motor 321.
[0043] Based on the real-time dust concentration, the primary adsorption component 33 is deployed, enabling the secondary adsorption component 31 to simultaneously perform adsorption and dust removal. In this structure, the central processing unit 6 drives the motor 321 under the detection of the dust concentration sensor 5. The motor 321 drives the active bevel gear 322 to rotate, thereby meshing and driving the driven bevel gear 324 to rotate, which in turn drives the adjusting threaded rod 323 to rotate. As a result, the adjusting seat 325 is threadedly connected to the adjusting threaded rod 323, causing the adjusting connecting rod 333 to slide outward along the secondary purification box 311, exposing the secondary purification box 311 located inside the primary arc plate 331, effectively meeting the adsorption efficiency requirements.
[0044] As a further example:
[0045] refer to Figure 3 and Figure 4 As shown, the secondary purification box 311 can be rotatably installed inside the dust collection box 1 via the rotating shaft 81. The rotating shaft 81 and the inner wall of the dust collection box 1 are preferably provided with support members to support its rotation. The dust collection box 1 is provided with a motor 8 on the outside. The output shaft of the motor 8 is connected to the rotating shaft 81, thereby satisfying the rotation of the dynamic adsorption device 3. This operation can make the dust-laden airflow evenly impact the surface of the adsorption layer and avoid local overload.
[0046] As a further example:
[0047] A buffer assembly 7 is provided between the primary arc plate 331 and the secondary purification box 311 to prevent collision between the two when recovering the secondary adsorption assembly 31. The buffer assembly 7 includes a protective plate 71 connected to the outside of the adjusting rod 333, and a spring 72 is provided between the protective plate 71 and the primary arc plate 331 for buffering.
[0048] Example 2
[0049] To further improve the dust purification effect, this embodiment, based on embodiment 1, also includes a spray purification device 4 located at the lower end of the exhaust pipe 22 and the dynamic adsorption device 3. The spray purification device 4 includes a water tank 41 located outside the dust collection box 1, which contains a purification liquid, preferably an alkaline reagent, for neutralizing acidic dust. One side of the water tank 41 is connected to a spray pipe 42 extending into the dust collection box 1 via a water pump 46. The spray pipe 42 is evenly distributed with nozzles 47 and is open upwards.
[0050] The spray purification device 4 also includes a filter plate 43 located below the spray pipe 42, a receiving pipe 44 located below the filter plate 43, and a recovery pipe 45 connecting the receiving pipe 44 and the water tank 41. The purified liquid is recycled after filtration and sedimentation, which is environmentally friendly and energy-saving.
[0051] In this structure, the dual synergistic effect of chemical spraying combined with adsorption is utilized to prevent dust from escaping, further improving the quality of purification. Moreover, the purified liquid can be reused after filtration to achieve the effect of recycling and energy saving.
[0052] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A workshop purification and dust removal device, comprising a dust collection box (1), wherein the dust collection box (1) is hollow inside and has a hinged and sealed inspection door (11) on one side, an exhaust fan (2) is connected to the top of the dust collection box (1), the exhaust fan (2) is connected to a suction hood (21) on one side outside the dust collection box (1) for collecting dust in the workshop, and an exhaust pipe (22) is connected to the top of the dust collection box (1), characterized in that, Also includes: The dynamic adsorption device (3) is located in the dust collector (1) and is located at the lower end of the exhaust pipe (22). The dynamic adsorption device (3) includes a secondary adsorption component (31) located in the dust collector (1), a drive component (32) that extends and retracts along the secondary adsorption component (31), and a primary adsorption component (33) located outside the drive component (32). In the initial state, the primary adsorption component (33) is located outside the secondary adsorption component (31) in an enclosing manner. It also includes a spray purification device (4) located at the lower end of the exhaust pipe (22) and the dynamic adsorption device (3). The spray purification device (4) includes a water tank (41) located outside the dust removal box (1), which contains purification liquid. One side of the water tank (41) is connected to a spray pipe (42) extending into the dust removal box (1) via a water pump (46). Spray nozzles (47) are evenly distributed on the spray pipe (42) and open upwards.
2. The workshop purification and dust removal device according to claim 1, characterized in that: The secondary adsorption component (31) includes a secondary purification box (311) located inside the dust removal box (1). The secondary purification box (311) is hollow inside and has a secondary adsorption layer (312) on its outer periphery. The secondary adsorption layer (312) is a nanofiber adsorption layer.
3. The workshop purification and dust removal device according to claim 2, characterized in that: The primary adsorption component (33) includes a primary arc plate (331) covering the periphery of the secondary purification box (311). The primary arc plate (331) is slidably connected to the secondary purification box (311) through an adjusting rod (333). A primary adsorption layer (332) is provided on the outer side of the primary arc plate (331). The primary adsorption layer (332) is an activated carbon adsorption layer.
4. The workshop purification and dust removal device according to claim 3, characterized in that: The drive assembly (32) includes a motor (321) located inside the secondary purification chamber (311). The output shaft of the motor (321) is provided with a drive bevel gear (322), and an adjusting threaded rod (323) is rotatably provided on the inner wall of the secondary purification chamber (311). The outer side of the adjusting threaded rod (323) is provided with a driven bevel gear (324) that meshes with the drive bevel gear (322), and an adjusting seat (325) is threaded on the outer side of the adjusting threaded rod (323). The adjusting seat (325) is connected to one end of the adjusting connecting rod (333).
5. The workshop purification and dust removal device according to claim 4, characterized in that: A buffer assembly (7) is provided between the primary arc plate (331) and the secondary purification box (311). The buffer assembly (7) includes a protective plate (71) connected to the outside of the adjusting rod (333). A spring (72) is provided between the protective plate (71) and the primary arc plate (331) for buffering.
6. The workshop purification and dust removal device according to claim 1, characterized in that: A dust concentration sensor (5) is provided on one side of the suction hood (21), and a central processing unit (6) is provided on the dust collection box (1). The dust concentration sensor (5) and the motor (321) are both connected to the central processing unit (6). When the dust concentration sensor (5) detects a sudden increase in the dust concentration in the workshop, it sends a signal to the central processing unit (6) and controls the working status of the motor (321) through the central processing unit (6).
7. The workshop purification and dust removal device according to claim 1, characterized in that: The spray purification device (4) also includes a filter plate (43) located below the spray pipe (42), a receiving pipe (44) located below the filter plate (43), and a recovery pipe (45) connecting the receiving pipe (44) and the water tank (41).