Multi-cloth-bag composite dust removal equipment

Abstract

The utility model provides multi-cloth-bag composite dust removal equipment which is provided with a plurality of groups of dust removal units consisting of pulse blowing devices, adsorption components and dust collection hoppers, baffle structures capable of being opened and closed between adjacent adsorption components, dust collection air pipes communicated with the dust removal units, and a plurality of dust collection hoods with wind speed measuring devices arranged at the collection pipe sections of the dust collection air pipes, multiple groups of flow guide structures are arranged on the dust removal pipe section of the dust collection air pipe; the air speed measuring device is electrically connected with a rotation driving motor of the flow guide structures; through the flow guide structure capable of controlling the gas flow direction and adjusting the gas distribution and the dust removal space formed by compounding a plurality of dust removal filter bag arrays, the operation load of the dust removal equipment can be elastically adjusted, the working efficiency of the dust removal equipment is improved, and the service life of the dust removal equipment is prolonged; the flow guide angle of any flow guide plate is adjusted to 0 degree, the baffle structure adjacent to the flow guide plate is closed, the corresponding dust removal unit can be closed, daily inspection or fault maintenance of the dust removal unit can be carried out, the maintenance cost and complexity are reduced, and the economic cost is reduced.

Description

Technical Field

[0001] This utility model belongs to the technical field of dust removal equipment, specifically relating to a multi-bag composite dust removal device. Background Technology

[0002] Baghouse dust collectors are one of the most common types of dust removal equipment. They are suitable for collecting fine, dry, non-fibrous dust and are widely used in modern production and living environments, especially in factories and workshops of industries that generate dust and exhaust gas pollution. The purpose is to filter and remove dust from the air in the production area before purifying it for discharge to the outside. The general working process of a baghouse dust collector is to introduce dust-laden air into the baghouse through the negative pressure of an induced draft fan, and to make the airflow rotate inside. During this process, the dust particles are separated from the airflow and collected on the wall of the baghouse by centrifugal force, and then fall into the ash hopper by gravity. At the same time, the dust-removed gas rises and is discharged to the outside by the negative pressure, thus completing the gas dust removal and filtration work.

[0003] Current baghouse dust collectors typically integrate all the filter bags in a square array within the same space of the dust collector housing. This makes it difficult to adjust the dust collection load according to different working hours in the production area. Furthermore, during the filtration of dust-laden gas, the insufficient dispersion of the gas along its path can lead to uneven workloads for different filter bags, causing some bags to operate under overload for extended periods. This not only significantly reduces dust collection efficiency but also increases the breakage rate of certain filter bags, thus increasing the frequency of dust collector maintenance and filter bag replacement, and raising economic costs. Additionally, it cannot flexibly adjust the filter bag load based on the amount of external dust and waste gas generated. To address these issues, this paper presents a multi-baghouse composite dust collector. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a multi-bag composite dust collector. By coordinating a controllable gas flow duct with multiple dust collection spaces composed of composite bags, the operating load of the dust collector can be flexibly adjusted, thereby improving its working efficiency and extending its service life.

[0005] To achieve the above objectives, this utility model provides a multi-bag composite dust collector, including a frame on which multiple dust collection units, a dust collection duct connecting the multiple dust collection units, and an induced draft fan connected to the outlet of each dust collection unit are arranged in parallel. Each dust collection unit, from top to bottom, includes a pulse jet cleaning device, an adsorption assembly, and a dust collection hopper. Adsorption assemblies of adjacent dust collection units are provided with openable and closable baffle structures. The dust collection duct includes a collection section and a section connecting the multiple adsorption assemblies and the dust collection hopper. The dust collection pipe section between the ash hoppers is equipped with multiple dust suction hoods. Each dust suction hood inlet is equipped with a wind speed measuring device. The dust collection pipe section is equipped with an adjustable flow guiding structure at the corresponding positions of the inlet of each adsorption component and the inlet of the ash collection hopper. The flow guiding structure includes a rotary drive motor disposed inside the dust collection pipe section, a flow guide plate connected to the output end of the rotary drive motor, and an adjusting impeller disposed at the inlet of the adsorption component. The rotary drive motor is electrically connected to the wind speed measuring device.

[0006] Preferably, the baffle structure includes a louvered baffle, a baffle drive motor, and a baffle transmission rod. The louvered baffle is vertically and openably disposed between the two adsorption components. The baffle drive motor is disposed on the equipment frame. The baffle transmission rod connects the louvered baffle and the baffle drive motor.

[0007] Preferably, an adjusting baffle is provided inside the dust collection duct, the adjusting baffle being inclined in the direction of the dust removal duct section, and its upper end being fixed to the inner wall at the top of the inlet of the dust removal duct section.

[0008] Preferably, the adsorption assembly is provided with a plurality of dust removal filter bags, which are arranged in a square array, and each dust removal filter bag is provided with a bag support.

[0009] Preferably, the pulse jet cleaning device includes an air storage tank, a plurality of jet pipes, and pulse valves disposed on the jet pipes. The air storage tank is disposed at the top of the equipment frame, and the jet pipes are evenly disposed above the dust collector filter bags, with their upper ends all connected to the air storage tank.

[0010] Preferably, the adsorption assembly is provided with a differential pressure sensor, which is electrically connected to the pulse valve.

[0011] Preferably, the bottom of the ash collection hopper is equipped with an electric ash discharge valve, and an observation window is provided on its side.

[0012] Preferably, a clean air chamber is also provided, which is located above the dust removal unit and connected to the outlet of the adsorption component.

[0013] Preferably, a row of exhaust ducts is also provided, which are connected to the induced draft fan.

[0014] Preferably, the induced draft fan is equipped with a wind speed inverter.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a multi-bag composite dust collection device, in which multiple dust collection units consisting of pulse jet cleaning devices, adsorption components, and dust collection hoppers are arranged side by side on the equipment frame. An openable baffle structure is provided between adjacent adsorption components. A dust collection duct is provided that runs through and connects the dust collection units. Multiple dust suction hoods equipped with wind speed measuring devices are installed on the collection duct section connecting to the outside. Multiple sets of directional adjustable baffles are provided on the dust collection duct section located within the dust collection units, corresponding to the inlet of the adsorption components and the inlet of the dust collection hopper. The airflow guiding structure is adjusted, and the wind speed measuring device is electrically connected to the rotation drive motor installed in the airflow guiding structure. The wind speed measuring device monitors the dust-laden gas drawn into the dust collection hood in real time to determine the dust removal load demand. Based on the load demand, the airflow guiding structure of each dust removal unit and the baffle structure between them are adjusted to activate a sufficient number of dust removal units to meet the load demand. The guide plate in the airflow guiding structure corresponding to the activated dust removal unit can guide the dust-laden gas to the adsorption component. The dust-laden gas is evenly dispersed between each dust removal filter bag by the adjustment impeller to complete the dust removal work. In this patented solution, by setting a controllable gas flow direction and a flow guide structure for adjusting gas distribution in the dust collection duct, and cooperating with the dust removal space composed of multiple dust removal filter bag arrays in the adsorption component, the operating load of the dust removal equipment can be flexibly adjusted, improving the working efficiency of the dust removal equipment and extending its service life. In addition, by adjusting the flow guide angle of the guide plate of any dust removal unit in the dust removal equipment to 0° and closing the adjacent baffle structure, the corresponding dust removal unit can be shut down, so as to perform routine inspection or fault repair on this dust removal unit, thereby reducing the maintenance cost and complexity of the dust removal equipment and reducing the overall economic cost. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of a multi-bag composite dust collector according to the present invention;

[0017] Figure 2 This is a schematic diagram of the baffle structure of this utility model when it is open;

[0018] Figure 3 This is a schematic diagram of the baffle structure of this utility model when it is closed.

[0019] In the diagram: 1-Equipment frame, 11-Clean air chamber, 12-Exhaust fan, 13-Exhaust duct, 21-Baffle structure, 22-Strip baffle, 221-Rotating shaft, 222-Helical bevel gear, 23-Baffle drive motor, 24-Baffle transmission rod, 25-Dust collector filter bag, 26-Air storage box, 27-Pulse jet pipe, 28-Pulse valve, 29-Dust collection hopper, 210-Electric dust discharge valve, 211-Observation window, 31-Collection pipe section, 32-Dust suction hood, 33-Wind speed measuring device, 34-Dust collector pipe section, 35-Rotating drive motor, 36-Guide plate, 37-Adjusting impeller, 38-Adjusting baffle. Detailed Implementation

[0020] To provide a more detailed description of this utility model, the following description is provided in conjunction with the accompanying drawings. It should be noted that the embodiments described below are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0021] See Figure 1 This embodiment provides a multi-bag composite dust collector, including a control system (not shown in the figure), a frame 1, multiple dust collection units, a dust collection duct, a clean air chamber 11, an induced draft fan 12, and an exhaust duct 13. The control system is electrically or communicatively connected to the other structures, and can automatically monitor and adjust the real-time status and condition of the dust collector to ensure stable operation. The dust collection units are arranged side by side on the frame 1. One end of the dust collection duct runs through the multiple dust collection units, and the other end is connected to the outside. The clean air chamber 11 is located above the dust collection units and is connected to the outlet of the dust collection units. The induced draft fan 12 is equipped with a wind speed inverter, and its inlet is connected to the clean air chamber 11 through a pipe, and its outlet is connected to the exhaust duct 13.

[0022] See Figure 1 , Figure 2 and Figure 3In this embodiment, three dust removal units are provided. Each dust removal unit is provided with a pulse jet cleaning device, an adsorption component, and a dust collection hopper 29 arranged sequentially from top to bottom. An openable baffle structure 21 is provided between the adsorption components of adjacent dust removal units. The baffle structure 21 includes louvered baffles, a baffle drive motor 23, and a baffle transmission rod 24. The louvered baffles include several vertically rotatable strip-shaped baffles 22 arranged between the two adsorption components. The length of the strip-shaped baffles is equal to the length of the dust removal filter. The bag 25 is of uniform length, with rotating shafts 221 at both ends. The bottom rotating shaft 221 is rotatably mounted on the equipment frame 1, and the top rotating shaft 221 is connected to the baffle transmission rod 24 via a spiral bevel gear 222. The baffle drive motor 23 is mounted on the equipment frame 1, and its output end is connected to one end of the baffle transmission rod 24. Driven by the baffle drive motor 23, the strip-shaped baffle rotates through the baffle transmission rod 24, allowing it to rotate between the plane of the strip-shaped baffle and the... The system switches between two states: an open state parallel to the baffle transmission rod 24 and a closed state perpendicular to the baffle transmission rod 24; the adsorption assembly includes multiple dust filter bags 25, bag supports matching the dust filter bags 25, and pressure differential sensors (not shown in the figure) installed on the equipment frame 1 at positions corresponding to the dust filter bags 25. The dust filter bags 25 are arranged in a square array above the dust collection hopper 29, and the bag supports are installed on the inner wall of the dust filter bags 25; the pulse jet cleaning... The device includes an air storage tank 26, several blow pipes 27, and a pulse valve 28. The air storage tank 26 is located at the top of the equipment frame 1. All blow pipes 27 are interconnected and their top ends are finally connected to the air storage tank 26. Each dust filter bag 25 has a corresponding blow pipe 27 at its upper opening. A pulse valve 28 electrically connected to the pressure differential sensor is located above the outlet of any blow pipe 27. The bottom of the dust collection hopper 29 is equipped with an electric dust discharge valve 210, and an observation window 211 is provided on its side.

[0023] The dust collection duct includes a collection pipe section 31, a dust removal pipe section 34, and an adjusting baffle 38. The collection pipe section 31 connects the dust removal equipment to the outside, and its main body is also located on the outside. Multiple dust suction hoods 32 are installed on it, and each dust suction hood 32 has a wind speed measuring device 33 at its inlet. The dust removal pipe section 34 runs through the dust removal equipment and connects to multiple dust removal units. An adjustable flow guiding structure is installed at positions corresponding to the inlet of the adsorption component and the inlet of the dust collection hopper 29 of each dust removal unit. The flow guiding structure includes a rotary drive motor 35, several guide plates 36, and an adjusting impeller 37. The rotary drive motor 35 is located inside the dust removal pipe section 34 and electrically connected to the wind speed measuring device 33. The same number of output terminals are arranged from top to bottom corresponding to the number of guide plates 36. The guide plates 36 are respectively connected to the rotary drive motor 35. The output end is connected. In this embodiment, the guiding angle of the guide plate 36 is the angle between the guide plate 36 and the dust removal pipe section 34. Its adjustment range is from 0° to 45° in the clockwise direction. When the guiding angle of the guide plate 36 is 0°, the guide plate is parallel to the dust removal pipe 34 and will not guide the flow of dust-laden gas inside. When the guiding angle of the guide plate 36 is 45°, the lower end of the guide plate 36 at the bottom is connected to the dust removal pipe section 34, thereby blocking the dust-laden gas from continuing to advance in the dust removal pipe section 34. The adjusting impeller 37 is set at the inlet of the adsorption component and the blades are horizontally distributed, so that the dust-laden gas entering the adsorption component is dispersed. The adjusting baffle 38 is inclined towards the dust removal pipe section 34 as a whole, and its upper end is fixed on the inner wall of the top of the inlet of the dust removal pipe section 34.

[0024] In this embodiment, initially, the baffle structure 21 between each dust removal unit is in a closed state, that is, the strip baffles are all parallel to the baffle transmission rod 24, and the guide plate 36 in the guide structure has a guide angle of 0°, that is, at this time the guide plate 36 is parallel to the dust removal pipe section 34 and the uppermost guide plate 36 covers and closes the inlet of the adsorption component; when the dust removal equipment is operating, the control system controls and adjusts the wind speed inverter in the induced draft fan 12 in real time according to the factory production needs and production environment, which can generate a suitable negative pressure environment at the inlet of each dust collection hood 32 by the induced draft fan 12 to achieve the effect of controlling the dust in the production environment. The dust-laden exhaust gas is attracted and collected, and after passing through the wind speed measuring device 33, it first reaches the adjusting baffle 38. Due to the presence of the adjusting baffle 38, the flow velocity of the dust-laden gas is reduced, and the large dust particles it carries naturally settle due to gravity and fall into the dust collection hopper 29. The remaining dust continues to advance with the dust-laden gas to the guide structure. According to the measurement result of the wind speed measuring device 33, the rotation drive motors 35 of the corresponding number of dust removal units and the guiding angle of their guide plates 36 are activated. That is, the higher the wind speed measurement result, the more rotation drive motors 35 are activated, and the last one to be activated is the dust removal pipe section 34. The guide plate 36 of the flow guiding structure is set at a flow angle of 45°, and the flow guiding angles of other flow guiding structures in front of it are all less than 45°. At the same time, the crotch structure between the dust removal units in the open state is also opened. The dust-laden gas enters the adsorption assembly under the action of the guide plate 36 of the open flow guiding structure and the adjusting impeller 37, and is evenly distributed between the dust removal filter bags 25. The dust removal filter bags 25 adsorb and trap the dust in the dust-laden gas. The clean gas after dust removal passes through the dust removal filter bags 25 and enters the clean air chamber 11, and is finally transported through the exhaust duct 13 under the negative pressure environment created by the induced draft fan 12. The dust is discharged at a height of 15 to 20 meters. As the dust removal filter bag 25 performs its adsorption and dust removal work, dust accumulates on the surface of the filter bag 25, increasing the filtration resistance. When the pressure difference sensor detects that the pressure difference has reached a preset value, the pulse valve 28 on the corresponding blow pipe 27 of the dust removal filter bag 25 opens, blowing the dust off the surface of the filter bag and causing it to fall into the dust collection hopper 29. Finally, the dust that settles at the inlet of the dust removal pipe section 34 and the dust that falls under the action of pulse blowing are collected in the dust collection hopper 29. When the dust accumulates to a preset amount, it can be periodically discharged through the electric ash discharge valve 210 for centralized treatment or recycling.Furthermore, by adjusting the guide angle of the guide plate 36 of any flow guiding structure in the dust removal equipment to close its corresponding dust removal unit, while ensuring that the adjacent baffle structure 21 is in a closed state, this dust removal unit can be closed for routine inspection or fault maintenance without affecting other dust removal units. In this embodiment, taking the dust removal pipe section 34 as the starting point, if it is necessary to close the first dust removal unit, it is only necessary to adjust the guide angle of the guide plate 36 of the flow guiding structure of this dust removal unit to 0°, while ensuring that the baffle structure 21 adjacent to the second dust removal unit is in a closed state. The flow can be adjusted to 0°. If the dust removal unit in the middle position needs to be closed, simply adjust the flow angle of the guide plate 36 of the flow guiding structure of this dust removal unit to 0°, while ensuring that it and the baffle structure 21 of the adjacent dust removal units on the left and right are in the closed state. If the dust removal unit in the last position needs to be closed, simply adjust the flow angle of the guide plate 36 of the flow guiding structure of this dust removal unit to 0°, while ensuring that it and the baffle structure 21 of the previous dust removal unit are in the closed state, and that the flow angle of the guide plate 36 of the flow guiding structure of the dust removal unit in front of it is 45°.

[0025] In this embodiment, the above is merely an example and is not intended to limit the scope of protection of this application.

[0026] This utility model provides a multi-bag composite dust collector. Multiple dust collection units, each consisting of a pulse jet cleaning device, an adsorption assembly, and a dust collection hopper, are arranged side-by-side on the equipment frame. Openable baffle structures are installed between adjacent adsorption assemblies. A dust collection duct runs through and connects the dust collection units. Multiple dust suction hoods equipped with wind speed measuring devices are installed on the section of the duct connecting to the outside. Multiple sets of directionally adjustable flow guiding structures are installed on the dust collection duct section within the dust collection units, corresponding to the inlets of the adsorption assemblies and the dust collection hoppers. The wind speed measuring device is electrically connected to the rotation drive motor installed in the flow guide structure. The wind speed measuring device monitors the dust-laden gas drawn into the dust collection hood in real time to determine the dust removal load demand. Based on the load demand, the flow guide structure of each dust removal unit and the baffle structure between them are adjusted to activate a sufficient number of dust removal units to meet the load demand. The flow guide plate in the flow guide structure corresponding to the activated dust removal unit can guide the dust-laden gas into the adsorption component. The dust-laden gas is evenly dispersed between each dust removal filter bag by adjusting the impeller to complete the dust removal work. In this patented solution, by setting a controllable gas flow direction and a flow guide structure for adjusting gas distribution in the dust collection duct, and cooperating with the dust removal space composed of multiple dust removal filter bag arrays in the adsorption component, the operating load of the dust removal equipment can be flexibly adjusted, improving the working efficiency of the dust removal equipment and extending its service life. In addition, by adjusting the flow guide angle of the guide plate of any dust removal unit in the dust removal equipment to 0° and closing the adjacent baffle structure, the corresponding dust removal unit can be shut down, so as to perform routine inspection or fault repair on this dust removal unit, thereby reducing the maintenance cost and complexity of the dust removal equipment and reducing the overall economic cost.

[0027] The embodiments disclosed above are only for detailed description of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, simple improvements and changes made in accordance with the claims of the present utility model are still within the scope of protection of the present utility model.

[0028] The scope of protection of this utility model shall be determined by the defined scope. For those skilled in the art, various improvements and modifications can be made without departing from the spirit and scope of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A multi-bag composite dust collector, comprising a frame, characterized in that, The equipment frame is equipped with multiple dust removal units arranged in parallel, a dust collection duct that runs through and connects the multiple dust removal units, and an induced draft fan that connects to the outlet of the dust removal unit. Each dust removal unit includes, from top to bottom, a pulse jet cleaning device, an adsorption component, and a dust collection hopper. Adsorption components of adjacent dust removal units are provided with openable and closable baffle structures. The dust collection duct includes a collection pipe section and a dust removal pipe section that runs through and connects the multiple adsorption components and the dust collection hopper. Multiple dust suction hoods are provided on the collection pipe section. A wind speed measuring device is provided at the inlet of each dust suction hood. The dust removal pipe section has an adjustable flow guiding structure at the corresponding positions of the inlet of each adsorption component and the inlet of the dust collection hopper. The flow guiding structure includes a rotary drive motor located inside the dust removal pipe section, a guide plate connected to the output end of the rotary drive motor, and an adjusting impeller located at the inlet of the adsorption component. The rotary drive motor is electrically connected to the wind speed measuring device.

2. The multi-bag composite dust collector according to claim 1, characterized in that, The baffle structure includes a louvered baffle, a baffle drive motor, and a baffle transmission rod. The louvered baffle is vertically and openably disposed between the two adsorption components. The baffle drive motor is disposed on the equipment frame. The baffle transmission rod connects the louvered baffle and the baffle drive motor.

3. The multi-bag composite dust collector according to claim 1, characterized in that, An adjusting baffle is installed inside the dust collection duct. The adjusting baffle is inclined in the direction of the dust removal duct section, and its upper end is fixed to the inner wall of the top of the dust removal duct section inlet.

4. The multi-bag composite dust collector according to claim 1, characterized in that, The adsorption assembly contains multiple dust removal filter bags arranged in a square array, and each dust removal filter bag contains a bag support.

5. The multi-bag composite dust collector according to claim 4, characterized in that, The pulse jet cleaning device includes an air storage tank, several jet pipes, and pulse valves installed on the jet pipes. The air storage tank is located at the top of the equipment frame, and the jet pipes are evenly arranged above the dust collector filter bags, with their upper ends all connected to the air storage tank.

6. The multi-bag composite dust collector according to claim 5, characterized in that, The adsorption assembly is equipped with a differential pressure sensor, which is electrically connected to the pulse valve.

7. The multi-bag composite dust collector according to claim 1, characterized in that, The bottom of the ash collection hopper is equipped with an electric ash discharge valve, and an observation window is provided on its side.

8. The multi-bag composite dust collector according to claim 1, characterized in that, A clean air chamber is also provided, which is located above the dust removal unit and connected to the outlet of the adsorption component.

9. A multi-bag composite dust collector according to claim 1, characterized in that, A row of ventilation ducts is also provided, which are connected to the induced draft fan.

10. A multi-bag composite dust collector according to claim 1, characterized in that, The induced draft fan is equipped with a wind speed frequency converter.

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