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CN-121971920-A - Bag-type dust collector for auxiliary fine powder sedimentation collection by connecting exhaust air and bin body in series

CN121971920ACN 121971920 ACN121971920 ACN 121971920ACN-121971920-A

Abstract

The invention discloses a cloth bag dust collector for assisting in sedimentation and collection of fine powder by connecting an exhaust air and a bin body in series, and belongs to the technical field of environmental protection equipment. The device comprises a bin body, a cloth bag, an induced draft fan and an exhaust pipe. The exhaust pipe of the induced draft fan is divided into a plurality of branch manifolds which transversely penetrate through the inside of the bin body, and each branch manifold is provided with a beating device driven by wind pressure in the pipe. And a flow switching mechanism is arranged at the outlet end of the split manifold, and the flow switching mechanism periodically and alternately plugs and conducts different split manifolds. When a certain branch manifold is blocked suddenly, the static pressure driving beating device which is raised instantaneously in the pipe acts to mechanically beat the adjacent cloth bags. The invention utilizes the heat energy and pressure energy of the system exhaust gas to realize the pre-drying and self-driving of the cloth bag, and has the advantages of mechanical auxiliary ash removal without extra energy consumption, high ash removal efficiency and obvious energy saving effect.

Inventors

  • WANG WENZHI
  • LU BAICHENG
  • Hou Youqing

Assignees

  • 临沂罗洁生态环保科技有限公司

Dates

Publication Date
20260505
Application Date
20260310

Claims (9)

  1. 1. The cloth bag dust collector for auxiliary fine powder sedimentation collection by connecting exhaust air and a bin body in series comprises a bin body (1), wherein the lower part of the bin body (1) is communicated with a dust collecting hopper (2), and is characterized in that a porous plate (13) for installing a cloth bag (12) is arranged between the bin body (1) and the dust collecting hopper (2); The induced draft and exhaust system comprises an induced draft pipe (4), a fan (5) and an exhaust pipe (6) which are communicated with the top of the bin body (1); A temperature raising and rapping system comprising: The plurality of shunt manifolds (14) transversely penetrate through the bin body (1) and are arranged at intervals with the cloth bags (12), the inlet ends of the shunt manifolds (14) are communicated with the exhaust pipes (6), and the outlet ends of the shunt manifolds form manifold tail ports (22) extending out of the bin body (1); The beating devices are arranged on one side or two sides of each shunt manifold (14) and are used for beating the cloth bags (12); the flow switching mechanism is used for periodically blocking one part of the manifold tail ports (22) and conducting the other part of the manifold tail ports (22) so as to form instantaneous high pressure in the blocked split manifold (14) and drive the beating device to act; The beating device comprises a pneumatic telescopic device (16) communicated with the shunt manifold (14) and a vibrating strip (17) which is in linkage with a piston of the pneumatic telescopic device (16), when the shunt manifold (14) is plugged, the piston of the pneumatic telescopic device (16) is driven to stretch out by static pressure rising in a pipe, and the vibrating strip (17) is driven to beat the cloth bag (12).
  2. 2. The cloth bag dust remover for auxiliary fine powder sedimentation collection by serially connected exhaust and bin bodies according to claim 1 is characterized in that a dust gas inlet (8) is formed in the side wall of the dust hopper (2), dust-containing gas enters from the lower part of the porous plate (13) and passes through the inside of the cloth bag (12) from bottom to top, clean gas enters the bin body (1) from the outside of the cloth bag (12), and the opening end of the cloth bag (12) is downwards fixed on the porous plate (13).
  3. 3. The bag-type dust collector for assisting in sedimentation and collection of fine powder by serially connected exhaust air and bin bodies according to claim 1, wherein a reset spring (19) for resetting the piston is arranged in the pneumatic telescopic device (16).
  4. 4. The cloth bag dust collector for auxiliary fine powder sedimentation collection by serially connected exhaust air and bin bodies according to claim 1, wherein the vibration strip (17) is of a strip-shaped structure arranged along the length direction of the split manifold (14), and a buffer pad (18) for buffering is arranged on one side of the vibration strip facing the cloth bag (12).
  5. 5. The cloth bag dust collector for auxiliary fine powder sedimentation collection by serially connected exhaust and bin bodies according to claim 1, wherein the flow switching mechanism is a jumping gate plate (20) arranged at the tail port (22) of the manifold, a plurality of ventilation openings (21) corresponding to the tail port (22) of the manifold are formed in the jumping gate plate (20), and the jumping gate plate (20) reciprocates under the action of the driving mechanism so as to alternately align or stagger the tail port (22) of the manifold and realize switching of conduction and blocking of the shunt manifold (14).
  6. 6. The cloth bag dust collector for auxiliary fine powder sedimentation collection by serially connected exhaust air and bin bodies according to claim 5, wherein the driving mechanism comprises a lower pressing cylinder (11) arranged above the jumping flashboard (20) and a supporting spring (23) arranged below the jumping flashboard (20), and the lower pressing cylinder (11) and the supporting spring (23) cooperatively act to drive the jumping flashboard (20) to reciprocate up and down.
  7. 7. The cloth bag dust remover for auxiliary fine powder sedimentation collection by connecting exhaust air and a bin body in series according to claim 1 is characterized in that the split manifolds (14) are arranged in a layered manner in the vertical direction, the beating devices are arranged on two sides of the same cloth bag (12) and are driven by the split manifolds (14) of different levels respectively, so that under the action of the flow switching mechanism, the two opposite sides of the cloth bag (12) are alternately beaten to enable the cloth bag (12) to generate S-shaped reciprocating fluctuation.
  8. 8. The bag-type dust collector for auxiliary fine powder sedimentation collection by connecting exhaust air and a bin body in series according to claim 7, wherein the flow switching mechanism is characterized in that the flow dividing manifold (14) is divided into an upper layer and a lower layer, the flow switching mechanism is used for controlling the connection of an upper layer odd-numbered flow dividing manifold (14) and a lower layer even-numbered flow dividing manifold (14) at the same moment, and the upper layer even-numbered flow dividing manifold (14) and the lower layer odd-numbered flow dividing manifold (14) are blocked and are switched reversely at the next moment.
  9. 9. The cloth bag dust collector for auxiliary fine powder sedimentation collection by connecting exhaust air and a bin body in series according to claim 8, wherein a framework (15) is arranged inside the cloth bag (12), and the framework (15) comprises a fixed base (151) fixed on the porous plate (13), two support ribs (152) arranged along the length direction of the cloth bag (12) and a top support ring (153) connected with the top ends of the support ribs (152).

Description

Bag-type dust collector for auxiliary fine powder sedimentation collection by connecting exhaust air and bin body in series Technical Field The invention belongs to the technical field of environmental protection equipment, and particularly relates to a bag-type dust remover for treating and collecting industrial fine powder and dust, in particular to a bag-type dust remover for realizing self-cleaning by utilizing system exhaust energy. Background The cloth bag dust collector is the most widely used high-efficiency dust collection equipment in industrial production, and intercepts dust particles in dust-containing gas through a filter bag to realize gas-solid separation. In the long-term operation process, dust can be accumulated on the surface of the filter bag to form a dust layer, namely 'dust hanging', so that the resistance of equipment is continuously increased, and the filtering effect is affected. Therefore, the filter bag must be cleaned periodically. The traditional ash removing modes mainly comprise mechanical vibration, back blowing, pulse blowing and the like. The pulse blowing has the widest application, but needs to consume a large amount of compressed air, has higher energy consumption, and can easily cause fatigue damage to the filter bag due to instantaneous high-pressure impact, thereby shortening the service life of the filter bag. For dust with higher humidity and higher viscosity, the traditional ash removing mode has poor effect, and the phenomenon of 'sticking a bag' is extremely easy to occur, so that equipment is blocked and even paralyzed. In addition, the dust removal system can produce a large amount of heat energy because of the fan acting in operation, and this part of heat energy is usually discharged along with the exhaust gas directly, has caused the energy waste. Therefore, how to utilize the energy of the system, develop a novel ash removal technology which has low energy consumption and high efficiency and can adapt to complex working conditions, and realize the full utilization of energy sources, and the novel ash removal technology is a technical problem to be solved in the field. Disclosure of Invention The invention aims to overcome the defects of the prior art, and provides a cloth bag dust remover for assisting in sedimentation and collection of fine powder by connecting exhaust air and a bin body in series, which skillfully utilizes heat energy and pressure energy contained in exhaust gas discharged by a draught fan, A self-driven auxiliary ash removing system integrating internal heating drying and mechanical vibration functions is constructed, so that ash removing efficiency is improved, running energy consumption is reduced, and equipment service life is prolonged. In order to achieve the above purpose, the invention adopts the following technical scheme: a cloth bag dust collector for assisting in sedimentation and collection of fine powder is composed of a bin body, a dust collecting hopper, an induced air and exhaust system and a set of heating and vibrating system. The lower part of the bin body is communicated with a dust collecting hopper, a porous plate is arranged between the two, is used for installing a plurality of cloth bags in an array manner. The induced draft and exhaust system comprises an induced draft pipe, a fan and an exhaust pipe and is used for extracting and exhausting the filtered clean gas from the top of the bin body. The heating and vibrating system comprises a plurality of split manifold pipes which transversely penetrate through the bin body and are arranged at intervals with the cloth bags, a beating device which is arranged on two sides of the split manifold pipes and is used for beating the cloth bags, and a flow switching mechanism which is used for controlling the beating device to act. Specifically, clean but warm exhaust gas from the fan enters the manifold through the exhaust duct. The split manifold transfers the heat carried by the split manifold to the environment in the bin body and the cloth bag, and the attached dust layer is preheated and dried. The tail port of the split manifold extends out of the bin body, so that the exhaust gas is ensured not to be in direct contact with dust-containing gas in the bin body. The flow switching mechanism periodically blocks a portion of the manifold tail and communicates another portion. When the tail port of a certain split manifold is suddenly blocked, the kinetic energy of the gas flowing in the pipe is rapidly converted into pressure energy, so that the static pressure in the pipe is instantaneously increased. This instantaneous high pressure is used as a power source to actuate the flapping device in communication with the manifold. The vibrating strip of the beating device is pushed out to mechanically beat the adjacent cloth bags once, and the preheated and dried dust is shaken off. When the manifold is conducted again, the pressure in the pipe is recovered to be normal, an