A workshop dust and waste gas purification device

Abstract

The utility model discloses a workshop dust and waste gas purification device of cooperation belongs to waste gas treatment equipment technical field, including waste gas treatment device, air suction pipe, sediment subassembly and collection subassembly, air suction pipe upper end intercommunication waste gas treatment device, its inside is provided with the sediment subassembly of fan and water mist launcher, is used for the humidification of inhaled dust, and its lower end is detachably connected collection subassembly, and collection subassembly includes collection box, is used for intercepting dust's water absorption cotton to and is by quick dismounting mechanism that constitutes of screw cap, screw thread hollow column and extension column, through the rotation screw cap, can realize collection box and air suction pipe's quick fixing and separation. The utility model solves the problem of the dust collection part of prior art cumbersome, time -consuming and labor -intensive, and effectively protects the rear purification equipment through the front -positioned dust removal, has the advantages of simple operation, and the maintenance is efficient.

Description

Technical Field

[0001] This utility model relates to the technical field of waste gas treatment equipment, and in particular to a workshop dust and waste gas synergistic purification device. Background Technology

[0002] In modern industrial production workshops, processes such as grinding, cutting, and welding generate large amounts of solid dust particles and harmful gaseous pollutants. If these mixed pollutants are discharged directly without treatment, they will cause serious harm to the environment and workers' health. Therefore, effective purification of such dust-laden waste gases is an essential part of industrial production.

[0003] To simultaneously treat both forms of pollutants, the industry typically employs synergistic purification technologies. These solutions usually involve placing a pre-treatment dust removal unit before the core treatment unit for gaseous pollutants. The purpose of this unit is to first capture and remove solid dust particles entrained in the exhaust gas, preventing dust from entering and clogging or damaging the delicate core purification components such as catalysts and filter membranes, thus ensuring the long-term stable operation of the entire purification system.

[0004] In the structure of a pre-filter unit, wet scrubbing is a common and effective method. It involves bringing dust particles into contact with a liquid (usually water), causing the dust particles to become humidified, heavier, and agglomerate into larger agglomerates. These agglomerates are then separated from the airflow and collected through subsequent physical structures. However, this process inevitably leads to the accumulation of large amounts of dust-laden wastewater, sludge, or saturated filter media in the collection components of the dust collector unit over time.

[0005] In existing technologies, these key dust collection components generally suffer from structural deficiencies. Most are fixed to the main frame or piping system of the equipment using methods such as flange bolts or welding. This results in maintenance personnel having to use multiple tools and spend a significant amount of time disassembling fasteners and connecting parts one by one when performing necessary routine cleaning, emptying, or replacement of internal consumables. The entire process is not only cumbersome and labor-intensive, but the disassembly itself can also easily cause dirt leakage, leading to secondary pollution and severely impacting production efficiency and ease of equipment maintenance.

[0006] Therefore, this utility model proposes a workshop dust and exhaust gas synergistic purification device to overcome the shortcomings of the prior art. Utility Model Content

[0007] To overcome the above shortcomings, this utility model provides a workshop dust and exhaust gas co-purification device, which aims to improve the problems of the existing workshop dust and exhaust gas co-purification devices, such as the cumbersome and time-consuming process of connecting and fixing the dust collection components to the main structure and the high labor intensity.

[0008] To achieve the above objectives, the present invention adopts the following technical solution: a workshop dust and exhaust gas co-purification device, comprising: an exhaust gas treatment device, an air suction pipe, a sedimentation component and a collection component, wherein the upper end of the air suction pipe is connected to the exhaust gas treatment device through a connecting pipe, the collection component is detachably connected to the lower end of the air suction pipe, and the sedimentation component is disposed inside the air suction pipe; The sedimentation assembly includes a fan and a water mist emitter; The collection assembly includes a collection box, absorbent cotton, a rotating nut, a threaded hollow column, and an extension column. The absorbent cotton is disposed inside the collection box. The extension column is vertically fixed to the lower end of the suction pipe. The threaded hollow column is vertically fixed to the top of the collection box. The rotating nut is sleeved on the outer periphery of the extension column and is threadedly connected to the threaded hollow column.

[0009] Preferably, the water mist emitter is located downstream of the airflow from the fan.

[0010] Preferably, the absorbent cotton has a hollow cylindrical structure and is coaxially arranged inside the collection box to provide a channel for airflow.

[0011] Preferably, the inner hole of the rotating nut is slidably connected to the outer wall of the extension post.

[0012] Preferably, the workshop dust and exhaust gas co-purification device further includes a roller installed at the bottom of the collection box for easy movement of the collection box.

[0013] Preferably, one end of the connecting tube is connected to the upper side wall of the suction tube.

[0014] Preferably, the water mist emitter includes a plurality of nozzles arranged radially along the intake pipe.

[0015] Preferably, the exhaust gas treatment device is provided with a mesh-like shell on the outside.

[0016] This utility model has the following beneficial effects: 1. In this utility model, by setting a pretreatment structure consisting of an air intake pipe, a sedimentation component, and a collection component at the front end of the waste gas treatment device, the dust-laden waste gas is humidified and particulate matter is separated before entering the main equipment. This solves the problem that dust directly entering the downstream purification equipment in the prior art can easily cause blockage and wear. It achieves a synergistic treatment effect of first efficiently removing dust particles and then deeply purifying gaseous pollutants, thereby effectively protecting the core purification equipment and extending the overall service life of the device.

[0017] 2. This utility model, through the innovative connection structure of rotating nut, threaded hollow column and extension column, realizes the rapid separation and installation of collection component and suction pipe, solves the problem that dust collection components in the prior art usually have fixed structure and the cleaning and maintenance process is cumbersome and time-consuming. It achieves the effect of simple operation and efficient maintenance, and significantly improves the practicality and ergonomics of the device. Attached Figure Description

[0018] Figure 1 This is a perspective view of a workshop dust and exhaust gas synergistic purification device proposed in this utility model; Figure 2 This is a schematic diagram of the connecting pipe of a workshop dust and exhaust gas synergistic purification device proposed in this utility model; Figure 3 This is a schematic diagram of a fan in a workshop dust and exhaust gas synergistic purification device proposed in this utility model; Figure 4 This is a schematic diagram of the extended column of a workshop dust and exhaust gas synergistic purification device proposed in this utility model; Figure 5 This is a schematic diagram of a water mist emitter for a workshop dust and exhaust gas synergistic purification device proposed in this utility model.

[0019] Legend: 1. Waste gas treatment device; 2. Connecting pipe; 3. Suction pipe; 4. Sedimentation assembly; 401. Fan; 402. Water mist emitter; 5. Collection assembly; 501. Rotating nut; 502. Collection box; 503. Absorbent cotton; 504. Threaded hollow column; 505. Extension column. Detailed Implementation

[0020] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Reference Figures 1-5 This utility model provides a workshop dust and exhaust gas co-purification device, which aims to solve the problems in the prior art where dust particles easily clog or wear down the downstream purification equipment and the dust collection components are cumbersome and inconvenient to clean and replace.

[0022] Specifically, the system includes an exhaust gas treatment device 1, a connecting pipe 2, an intake pipe 3, a sedimentation component 4, and a collection component 5. The upper end of the intake pipe 3 is connected to the exhaust gas treatment device 1 through the connecting pipe 2. The collection component 5 is detachably connected to the lower end of the intake pipe 3. The sedimentation component 4 is located inside the intake pipe 3 and includes a fan 401 and a water mist emitter 402. The core of this technical solution lies in the convenient disassembly and assembly structure of the collection component 5. The collection component 5 includes a collection box 502, absorbent cotton 503, a rotating nut 501, a threaded hollow column 504, and an extension column 505. The absorbent cotton 503 is located inside the collection box 502. The extension column 505 is vertically fixed to the lower end of the intake pipe 3. The threaded hollow column 504 is vertically fixed to the top of the collection box 502. The rotating nut 501 is sleeved on the outer periphery of the extension column 505 and threadedly connected to the threaded hollow column 504. By rotating the rotating nut 501, the collection box 502 and the intake pipe 3 can be quickly separated and connected.

[0023] The water mist emitter 402 is located downstream of the airflow of the fan 401. Specifically, the fan 401 is installed in a relatively low position inside the suction pipe 3 to draw dust-laden exhaust gas from the bottom of the device and generate a stable upward airflow. The water mist emitter 402 is fixedly installed above the rotating plane of the fan blades 401. When the fan 401 is running, the external dust-laden exhaust gas is drawn in and first passes through the action area of ​​the fan 401. The exhaust gas is accelerated here and forms a well-directional upward airflow, which promotes the uniform dispersion of water mist particles across the entire cross-section of the airflow pipe. This avoids the uneven mixing problem caused by spraying in the turbulent area at the fan inlet, thus ensuring that each dust particle has a higher probability of contacting water droplets and being wetted.

[0024] The absorbent cotton 503 has a hollow cylindrical structure and is coaxially arranged inside the collection box 502. The central axis of the absorbent cotton 503 and the central axis of the cylindrical collection box 502 are spatially coincident. The absorbent cotton 503 has a certain wall thickness. The inner wall of the absorbent cotton 503 defines a vertical core channel for the airflow to go straight upward, while the outer wall of the absorbent cotton 503 is closely attached to or adjacent to the inner wall of the collection box 502. The absorbent cotton 503 is made of a fiber aggregate with high hydrophilicity, high porosity and huge specific surface area. When the airflow carrying moist dust passes through the central channel of the hollow cylindrical structure at high speed, the moist dust particles in the airflow will continuously collide and firmly adhere to the rough and porous inner wall fibers of the absorbent cotton 503 due to inertia or airflow disturbance, thus achieving efficient interception and capture of dust.

[0025] The inner hole of the rotating nut 501 and the outer wall of the extension post 505 form a sliding connection. The extension post 505, which is fixed to the lower end of the suction pipe 3, has a smooth and precise outer cylindrical surface. The central through hole of the rotating nut 501, i.e., the inner hole, is also machined into a smooth cylindrical through hole, and the diameter of the inner hole is set to be slightly larger than the outer diameter of the extension post 505. A sliding fit with a small gap is formed between the two. When the operator rotates the rotating nut 501 counterclockwise, so that the internal thread of the rotating nut 501 is unscrewed from the external thread of the threaded hollow post 504, the rotating nut 501 can rotate freely on the outer wall of the extension post 505 and slide smoothly downward along the axis of the extension post 505. During this process, the extension post 505 always provides precise guiding support for the rotating nut 501, effectively preventing the rotating nut 501 from tilting, shaking or jamming during the loosening or tightening process.

[0026] Rollers are installed at the bottom of the collection box 502. More specifically, omnidirectional rollers can be fixed to the four corners of the bottom of the collection box 502 with high-strength bolts or strong welding. The use of omnidirectional rollers allows operators to easily move the collection box 502, which is very heavy and filled with dusty wastewater, in any direction on the ground with minimal pushing force after disassembly. Whether it is pushing it away from the main body of the equipment, transporting it to the designated dumping area for wastewater treatment, taking it to the cleaning area for internal rinsing, or replacing the saturated absorbent cotton 503 inside, the whole process becomes labor-saving and efficient, significantly reducing the labor intensity and operational difficulty of daily maintenance work.

[0027] One end of the connecting pipe 2 is connected to the upper side wall of the suction pipe 3, while the other end of the connecting pipe 2 is connected to the air inlet of the exhaust gas treatment device 1. Specifically, the suction pipe 3 is arranged vertically in the device, while the connecting pipe 2 is a horizontal pipe. One end of the connecting pipe 2 is detachably connected to the side wall opening of the upper area of ​​the suction pipe 3 by means of a standard flange and fastener. Together, they form an L-shaped flow channel corner structure. The relatively clean gas, after being fully pretreated by the lower sedimentation component 4 and the collection component 5, rises vertically to the top area in the suction pipe 3 and then smoothly turns 90 degrees to enter the horizontal connecting pipe 2, and is then stably transported to the exhaust gas treatment device 1 for deep purification. This side-connected pipe layout saves vertical space.

[0028] The water mist emitter 402 specifically includes multiple nozzles arranged radially along the intake pipe 3. To support and arrange these nozzles, the water mist emitter 402 also includes an annular water supply pipe, which is coaxially fixed to the inner wall of the intake pipe 3. Multiple atomizing nozzles are evenly spaced along the circumference of the annular pipe, and the nozzles of all nozzles face the central axis of the intake pipe 3, or at a preset angle to the direction of airflow. When high-pressure water enters the annular pipe, it is ejected at high speed from each nozzle, forming extremely fine droplets. These droplets together construct a uniformly distributed and density-controllable water mist curtain across the entire cross-section of the airflow channel, ensuring that the airflow from the vicinity of the pipe wall to the center of the pipe can fully contact and mix with the water mist without dead angles, thereby maximizing the humidification and collection efficiency of dust particles.

[0029] The exterior of the exhaust gas treatment device 1 is provided with a mesh-like shell, which is made of high-strength metal or engineering plastic, forming the main frame and outer protective structure of the exhaust gas treatment device 1.

[0030] Working principle: When this device is running, the fan 401 installed inside the suction pipe 3 starts, generating negative pressure at the lower inlet of the suction pipe 3, which draws the dust-containing exhaust gas in the workshop into the suction pipe 3. Under the action of the fan 401, the exhaust gas forms a stable upward airflow. At the same time, the water mist emitter 402, also installed inside the suction pipe 3, starts working, spraying a uniform and fine water mist into this rising airflow. Under the agitation of the airflow, the dust particles in the exhaust gas and the water mist particles are fully contacted and mixed. The dust absorbs moisture, becomes heavier, and becomes damp and sticky.

[0031] The airflow carrying moist dust continues to move upward and passes through the absorbent cotton 503 set inside the collection box 502. Due to the stickiness of the moist dust, most of the dust particles are effectively intercepted and firmly adhered to the absorbent cotton 503 by its fiber structure. The excess water sprayed by the water mist emitter 402 and some of the larger dust particles washed down settle to the bottom of the collection box 502 and are collected due to gravity. After being filtered by the absorbent cotton 503, the clean exhaust gas with greatly reduced dust content continues to flow upward and is transported to the exhaust gas treatment device 1 through the connecting pipe 2 for further deep purification of gaseous pollutants.

[0032] When it is necessary to clean or replace the absorbent cotton 503 in the collection assembly 5, the operator rotates the rotating nut 501 counterclockwise. The internal thread of the rotating nut 501 is screwed out from the external thread of the threaded hollow column 504 fixed on the top of the collection box 502. During the rotation, the inner hole of the rotating nut 501 will slide smoothly down along the outer wall of the extension column 505 fixed at the lower end of the suction pipe 3 until it is completely separated from the threaded hollow column 504. At this time, the entire collection box 502, together with the absorbent cotton 503 inside, is completely separated from the suction pipe 3. The operator can easily remove the collection box 502 for cleaning. After maintenance, push the collection box 502 back to its original position, align it upwards, and rotate the rotating nut 501 clockwise to make the rotating nut 501 re-engage with the threaded hollow column 504 and tighten it, thereby quickly and firmly reinstalling the collection assembly 5 back to the lower end of the suction pipe 3.

Claims

1. A workshop dust and exhaust gas co-purification device, comprising: The exhaust gas treatment device (1), the suction pipe (3), the sedimentation component (4) and the collection component (5) are characterized in that the upper end of the suction pipe (3) is connected to the exhaust gas treatment device (1) through the connecting pipe (2), the collection component (5) is detachably connected to the lower end of the suction pipe (3), and the sedimentation component (4) is disposed inside the suction pipe (3). The sedimentation component (4) includes a fan (401) and a water mist emitter (402). The collection assembly (5) includes a collection box (502), absorbent cotton (503), a rotating nut (501), a threaded hollow column (504), and an extension column (505). The absorbent cotton (503) is disposed inside the collection box (502). The extension column (505) is vertically fixed to the lower end of the suction pipe (3). The threaded hollow column (504) is vertically fixed to the top of the collection box (502). The rotating nut (501) is sleeved on the outer periphery of the extension column (505) and threadedly connected to the threaded hollow column (504).

2. The workshop dust and exhaust gas co-purification device according to claim 1, characterized in that, The water mist emitter (402) is located downstream of the airflow of the fan (401).

3. The workshop dust and exhaust gas co-purification device according to claim 1, characterized in that, The absorbent cotton (503) has a hollow cylindrical structure and is coaxially arranged inside the collection box (502) to provide a channel for airflow.

4. The workshop dust and exhaust gas synergistic purification device according to claim 1, characterized in that, The inner hole of the rotating nut (501) is slidably connected to the outer wall of the extension post (505).

5. The workshop dust and exhaust gas synergistic purification device according to claim 1, characterized in that, The bottom of the collection box (502) is equipped with rollers.

6. The workshop dust and exhaust gas synergistic purification device according to claim 1, characterized in that, One end of the connecting pipe (2) is connected to the upper side wall of the suction pipe (3), and the other end is connected to the waste gas treatment device (1).

7. The workshop dust and exhaust gas co-purification device according to claim 1 or 2, characterized in that, The water mist emitter (402) includes a plurality of nozzles arranged radially along the air intake pipe (3).

8. The workshop dust and exhaust gas co-purification device according to claim 1, characterized in that, The waste gas treatment device (1) is provided with a mesh-like shell on the outside.

Images