Venturi integrated dust collector with built-in post-stage pulse back-flushing and back-washing defoaming cylinder
Patent Information
- Application Number
- CN202522335529.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-04
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-11-04
AI Technical Summary
[0002]在现有湿式除尘器净化效率不足的情况下，通常的做法是在设备后端加设二级净化器，但现有的二级净化器中的二级净化滤芯多为一次性的，该二级净化滤芯需人工定期进行更换或清洁，从而存在二级净化滤芯更换成本高，以及存在人工成本高的缺点，因此设计一款可自动清洁二级净化滤芯的湿式除尘器就显得尤为重要
[0003]本实用新型要解决的技术问题是提供一种带内置后级脉冲反吹反洗除沫筒的文丘里一体除尘器，其在旋转反吹装置和高压水喷洗装置的协同作用下，能够对除沫金属滤筒进行清洗，从而能够减少对除沫金属滤筒进行人工清洗或更换的需要，进而能够降低除沫金属滤筒的更换成本，以及人工成本。
Smart Images
Figure CN224793093U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of wet dust removal equipment, and more specifically, to a Venturi integrated dust collector with a built-in post-stage pulse backflushing and backwashing demister. Background Technology
[0002] Given the insufficient purification efficiency of existing wet scrubbers, the common practice is to add a secondary purifier at the end of the equipment. However, the secondary filter element in the existing secondary purifiers is mostly disposable, and this secondary filter element needs to be replaced or cleaned manually periodically. This results in high replacement costs for the secondary filter element and high labor costs. Therefore, it is particularly important to design a wet scrubber that can automatically clean the secondary filter element. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a venturi integrated dust collector with a built-in post-stage pulse backflushing and backwashing demister cartridge. Under the synergistic action of the rotary backflushing device and the high-pressure water spray washing device, it can clean the demister metal filter cartridge, thereby reducing the need for manual cleaning or replacement of the demister metal filter cartridge, and thus reducing the replacement cost of the demister metal filter cartridge and the labor cost.
[0004] This utility model provides a Venturi integrated dust collector with a built-in post-stage pulse backflushing and demister cartridge, including a dust collector housing, a fan, and a demister metal filter cartridge. A buffer clean air chamber and an exhaust air chamber are arranged vertically on the inner side of the dust collector housing. The fan is fixed to the upper end of the dust collector housing and communicates with the outlet of the buffer clean air chamber. The demister metal filter cartridge is placed in the exhaust air chamber and fixed to the dust collector housing, with its inner cavity communicating with the inlet of the buffer clean air chamber. An exhaust air inlet communicating with the exhaust air chamber is provided on one side of the bottom of the dust collector housing, and a dust outlet is provided at the lower end of the dust collector housing. The Venturi integrated dust collector also includes a rotary backflushing device, a compressed air supply device, and a high-pressure water spraying device. The rotary backflushing device is located inside the demister metal filter cartridge, and the compressed air supply device is fixed to the outer wall of the dust collector housing. The inlet of the rotary backflushing device is connected to the outlet of the compressed air supply device via a connecting pipe. The high-pressure water spraying device is sleeved on the outer side of the demister metal filter cartridge and fixed to the dust collector housing.
[0005] By adopting the above-mentioned structure, this utility model can clean the demister metal filter cartridge under the synergistic effect of the rotary backflushing device and the high-pressure water spray washing device, so that the demister metal filter cartridge can achieve self-cleaning, thereby reducing the need for manual cleaning or replacement of the demister metal filter cartridge, and thus reducing the replacement cost of the demister metal filter cartridge and the labor cost.
[0006] In one possible implementation, the compressed air supply device includes a compressed air storage tank and a solenoid valve; the compressed air storage tank is fixed to the outer wall of the dust collector housing, the air inlet end of the solenoid valve is connected to the air outlet end of the compressed air storage tank, and the air inlet end of the rotary backflushing device is connected to the air outlet end of the solenoid valve through a connecting pipe.
[0007] In one possible implementation, the high-pressure water spraying device includes an annular water guide pipe and several spray nozzles; the water guide pipe is sleeved on the outside of the demister metal filter cartridge and fixed to the dust collector housing; the several spray nozzles are circumferentially spaced and fixed on the water guide pipe and communicate with the water guide pipe; the spraying end of each spray nozzle faces the outer wall of the demister metal filter cartridge and is clearance-fitted with the outer wall of the demister metal filter cartridge; the water guide pipe is connected to a water inlet pipe, and the water inlet end of the water inlet pipe extends out of the dust collector housing.
[0008] In one possible implementation, the spray tip of each nozzle is inclined toward the outer wall of the demister metal filter cartridge.
[0009] In one possible implementation, an inspection port is provided on the side wall of the exhaust gas inlet, and an inspection cover is detachably fixed to the inspection port by fasteners.
[0010] In one possible implementation, the lower end of the dust collector housing forms a funnel-shaped material guide section, and the dust outlet is located at the lowest point of the material guide section. Attached Figure Description
[0011] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation
[0012] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.
[0013] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.
[0014] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0015] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.
[0016] See Figure 1 As shown in the figure, this application discloses a Venturi integrated dust collector with a built-in post-stage pulse backflushing and demister cartridge, including a dust collector housing 1, a fan 2, and a demister metal filter cartridge 3; a buffer clean air chamber 11 and an exhaust gas chamber 12 are arranged vertically on the inner side of the dust collector housing 1, the fan 2 is fixed at the upper end of the dust collector housing 1 and communicates with the outlet of the buffer clean air chamber 11, the demister metal filter cartridge 3 is disposed in the exhaust gas chamber 12 and fixed to the dust collector housing 1, and the inner cavity of the demister metal filter cartridge 3 communicates with the inlet of the buffer clean air chamber 11; an exhaust gas inlet 13 communicating with the exhaust gas chamber 12 is provided on one side of the bottom of the dust collector housing 1. The dust collector housing 1 has a dust outlet 14 at its lower end; the Venturi integrated dust collector also includes a rotary back-blowing device 4, a compressed air supply device 5, and a high-pressure water spray washing device 6; the rotary back-blowing device 4 is located inside the demister metal filter cartridge 3, the compressed air supply device 5 is fixed on the outer wall of the dust collector housing 1, and the air inlet of the rotary back-blowing device 4 is connected to the air outlet of the compressed air supply device 5 through a connecting pipe 41; the high-pressure water spray washing device 6 is sleeved on the outside of the demister metal filter cartridge 3 and fixed to the dust collector housing 1; the aforementioned demister metal filter cartridge is an existing component or device on the market, which is existing technology, so it will not be described in detail here.
[0017] The compressed air supply device 5 includes a compressed air storage tank 51 and a solenoid valve 52. The compressed air storage tank 51 is fixed on the outer wall of the dust collector housing 1. The air inlet end of the solenoid valve 52 is connected to the air outlet end of the compressed air storage tank 51. The air inlet end of the rotary back-blowing device 4 is connected to the air outlet end of the solenoid valve 52 through a connecting pipe 41. When this compressed air supply device is used, the solenoid valve opens when it is necessary to clean the demister metal filter cartridge. The compressed air in the compressed air storage tank can enter the rotary back-blowing device through the solenoid valve and the connecting pipe. At this time, the rotary back-blowing device can use the jet pressure of the compressed air to blow away the dust adhering to the surface of the filter cartridge, thereby cleaning the demister metal filter cartridge. The air inlet end of the compressed air storage tank is connected to an air compressor so that the air compressor supplies air to the compressed air storage tank. In addition, the above-mentioned rotary back-blowing device is an existing component or device on the market and is existing technology, so it will not be described in detail here.
[0018] The high-pressure water spray washing device 6 includes a ring-shaped water guide pipe 61 and several water spray nozzles 62. The water guide pipe 61 is sleeved on the outside of the demister metal filter cartridge 3 and fixed to the dust collector housing 1. Several water spray nozzles 62 are circumferentially spaced and fixed on the water guide pipe 61 and connected to the water guide pipe 61. The spraying end of each water spray nozzle 62 faces the outer wall of the demister metal filter cartridge 3 and is clearance-fitted with the outer wall of the demister metal filter cartridge 3. The water guide pipe 61 is connected to an inlet pipe 63, and the inlet end of the inlet pipe 63 extends out of the dust collector housing 1. By using this high-pressure water spray washing device, when high-pressure water enters the water guide pipe from the inlet pipe, the high-pressure water can be sprayed out through the water spray nozzles to the outer wall of the demister metal filter cartridge. The high-pressure water sprayed from the several water spray nozzles can perform circumferential high-pressure spray washing on the demister metal filter cartridge, wash away the dust adhering to the surface of the demister metal filter cartridge, and restore the demister metal filter cartridge to a clean state.
[0019] Each nozzle 62 has its spray tip angled toward the outer wall of the demister metal filter cartridge 3. With this structure, the high-pressure water sprayed from the nozzle can more reliably flush away the dust adhering to the outer wall of the demister metal filter cartridge, thereby improving the cleaning effect and efficiency of the demister metal filter cartridge.
[0020] An inspection port 131 is provided on the side wall of the exhaust gas inlet 13. An inspection cover 132 is detachably fixed to the inspection port 131 by fasteners. With the provision of the inspection port, when the inspection cover is removed, the staff can inspect the inner cavity of the exhaust gas inlet through the inspection port, which facilitates the inspection of the exhaust gas inlet. After the inspection is completed, the inspection cover can be re-fixed to the inspection port by fasteners, which are a number of bolt assemblies distributed circumferentially.
[0021] The lower end of the dust collector housing 1 forms a funnel-shaped material guide section 15, and the dust outlet 14 is located at the lowest point of the material guide section 15. With this structure, the dust accumulated at the bottom of the dust collector housing can be discharged more smoothly to the outside of the dust collector housing through the dust outlet under the guidance of the material guide section.
[0022] During normal dust removal, the fan is in operation. At this time, negative pressure is generated in the buffer clean air chamber and the exhaust gas chamber, that is, the exhaust gas can enter the exhaust gas chamber through the exhaust gas inlet. Subsequently, the exhaust gas can flow through the demister metal filter cartridge, the buffer clean air chamber and the fan before being discharged. The dust mixed in the exhaust gas can be blocked by the demister metal filter cartridge. When there is a lot of dust on the outer wall of the demister metal filter cartridge, the dust can fall to the inner bottom of the dust collector shell and be discharged through the dust outlet.
[0023] When cleaning the demister metal filter cartridge is required, the rotary backflushing device first uses compressed air pressure to blow away the dust adhering to the surface of the filter cartridge, thus cleaning it. If the rotary backflushing device is ineffective, the high-pressure water spraying device is activated. High-pressure water is then sprayed through nozzles onto the outer wall of the demister metal filter cartridge. The high-pressure water from several nozzles performs a circumferential high-pressure spray wash, rinsing away the dust adhering to the surface. After the high-pressure water spraying device cleans the demister metal filter cartridge, it is allowed to soak in the cleaning water for a period of time before the rotary backflushing device is used again to blow away and remove the dust adhering to the surface. This process can be repeated to achieve effective cleaning of the demister metal filter cartridge. Furthermore, the demister metal filter cartridge is made of sintered metal wire, ensuring its structural strength and preventing severe deformation due to backflushing and cleaning pressure.
[0024] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.
Claims
1. A Venturi integrated dust collector with a built-in post-stage pulse backflushing and backwashing demister cartridge, comprising a dust collector housing (1), a fan (2), and a demister metal filter cartridge (3); the inner side of the dust collector housing (1) is provided with a buffer clean air chamber (11) and an exhaust gas chamber (12) arranged vertically; the fan (2) is fixed to the upper end of the dust collector housing (1) and communicates with the outlet of the buffer clean air chamber (11); the demister metal filter cartridge (3) is disposed in the exhaust gas chamber (12) and fixed to the dust collector housing (1); the inner cavity of the demister metal filter cartridge (3) communicates with the inlet of the buffer clean air chamber (11); an exhaust gas inlet (13) communicating with the exhaust gas chamber (12) is provided on one side of the bottom of the dust collector housing (1); and a dust outlet (14) is provided at the lower end of the dust collector housing (1); characterized in that: The Venturi integrated dust collector also includes a rotary back-blowing device (4), a compressed air supply device (5), and a high-pressure water spraying device (6); the rotary back-blowing device (4) is located inside the demister metal filter cartridge (3), the compressed air supply device (5) is fixed on the outer wall of the dust collector housing (1), and the air inlet of the rotary back-blowing device (4) is connected to the air outlet of the compressed air supply device (5) through a connecting pipe (41); the high-pressure water spraying device (6) is sleeved on the outside of the demister metal filter cartridge (3) and fixed to the dust collector housing (1).
2. The Venturi integrated dust collector with built-in post-stage pulse backflushing and demister cartridge as described in claim 1, characterized in that: The compressed air supply device (5) includes a compressed air storage tank (51) and a solenoid valve (52); the compressed air storage tank (51) is fixed on the outer wall of the dust collector housing (1), the air inlet of the solenoid valve (52) is connected to the air outlet of the compressed air storage tank (51), and the air inlet of the rotary backflushing device (4) is connected to the air outlet of the solenoid valve (52) through a connecting pipe (41).
3. The Venturi integrated dust collector with built-in post-stage pulse backflushing and demister cartridge as described in claim 1, characterized in that: The high-pressure water spray washing device (6) includes a ring-shaped water guide pipe (61) and several water spray nozzles (62); the water guide pipe (61) is sleeved on the outside of the demister metal filter cartridge (3) and fixed to the dust collector housing (1); several water spray nozzles (62) are circumferentially spaced and fixed on the water guide pipe (61) and connected to the water guide pipe (61); the spraying end of each water spray nozzle (62) faces the outer wall of the demister metal filter cartridge (3) and is gap-fitted with the outer wall of the demister metal filter cartridge (3); the water guide pipe (61) is connected to a water inlet pipe (63); the water inlet end of the water inlet pipe (63) extends out of the dust collector housing (1).
4. The Venturi integrated dust collector with built-in post-stage pulse backflushing and demister cartridge as described in claim 3, characterized in that: The spray end of each of the spray nozzles (62) is inclined toward the outer wall of the defoaming metal filter cartridge (3).
5. The Venturi integrated dust collector with a built-in post-stage pulse backflushing and demister cartridge according to any one of claims 1-4, characterized in that: An inspection port (131) is provided on the side wall of the exhaust gas inlet (13), and an inspection cover (132) is detachably fixed to the inspection port (131) by fasteners.
6. The Venturi integrated dust collector with built-in post-stage pulse backflushing and demister cartridge according to any one of claims 1-4, characterized in that: The lower end of the dust collector housing (1) forms a funnel-shaped material guide section (15), and the dust outlet (14) is located at the lowest point of the material guide section (15).