CN-224207659-U - Vacuum system bag inlet and outlet filtering device

Abstract

The utility model discloses a bag inlet and outlet filter device of a vacuum system, which belongs to the technical field of filter devices and comprises a medium-efficiency filter, a high-efficiency filter and a bracket, wherein the medium-efficiency filter and the high-efficiency filter are fixedly arranged on the bracket, the medium-efficiency filter and the high-efficiency filter are connected through a pipeline, the left side of the medium-efficiency filter is provided with an inlet, the right side of the high-efficiency filter is provided with an outlet, a filter core is arranged in the medium-efficiency filter, a pulse back flushing pipe is arranged in the filter core, a pulse back flushing valve is arranged on the medium-efficiency filter, one end of the pulse back flushing valve is communicated with the pulse back flushing pipe, and the other end of the pulse back flushing valve is communicated with a gas storage tank.

Inventors

• HAN YINGLONG
• CHEN LE
• ZHANG WEIXING
• RAO LEI

Assignees

• 宜春万申智能装备股份有限公司

Dates

Publication Date

20260508

Application Date

20250225

Claims (5)

1. 1. The utility model provides a vacuum system bag advances bag and goes out filter equipment, includes well effect filter (1), high-efficient filter (2), support (3), wherein well effect filter (1) and high-efficient filter (2) fixed mounting are on support (3), well effect filter (1) and high-efficient filter (2) pass through the pipe connection, the left side of well effect filter (1) is provided with import (101), the right side of high-efficient filter (2) is provided with export (102), well effect filter (1) internally mounted has filter core (205), installs pulse back flushing pipe (207) in filter core (205), installs pulse back flushing valve (201) on well effect filter (1), pulse back flushing valve (201) one end communicates with each other with pulse back flushing pipe (207), and the other end communicates with each other with gas holder (202).
2. 2. The vacuum system bag inlet and outlet filtering device according to claim 1, wherein a cone hopper is arranged below the medium-efficiency filter (1), a valve (6) is arranged below the cone hopper, and a dust collecting port (103) is arranged below the valve.
3. 3. A vacuum system bag inlet and outlet filter device according to claim 1, wherein the filter port of the intermediate filter (1) is provided with a cover plate (403) through a fixing bolt (402).
4. 4. The vacuum system bag inlet and outlet filtering device according to claim 1, wherein the medium-efficiency filter (1) is provided with a medium-efficiency differential pressure sensor (4), the high-efficiency filter (2) is provided with a high-efficiency differential pressure sensor (5), the medium-efficiency differential pressure sensor (4) is connected to pipelines on two sides of the medium-efficiency filter (1) through a medium-efficiency differential pressure air inlet pipe (304) and a medium-efficiency differential pressure air outlet pipe (303), and the high-efficiency differential pressure sensor (5) is connected to pipelines on two sides of the high-efficiency filter (2) through a high-efficiency differential pressure air inlet pipe (301) and a high-efficiency differential pressure air outlet pipe (302).
5. 5. A vacuum system bag filter device as set forth in claim 1 wherein when the filter element (205) is replaced, PE bag a (203) is sleeved on the filter port, PE bag a (203) is tightly sealed by O-ring b (404), cover plate fixing bolts (402) on cover plate (403) are loosened, cover plate (403) is removed, filter element fixing bolts (401) are loosened again, filter element (205) is removed, PE bag a (203) is divided into two parts by tightening the middle part of PE bag a (203) by tie (406), PE bag a (203) is separated by shearing from the middle of tie (406) by scissors, new filter element (408) is placed in new PE bag (407), then is integrally sleeved outside old PE bag a (203), old PE bag a (203) is taken off from new PE bag (407), new filter element (408) is loaded in filter cartridge, filter element fixing bolts (401) are loaded in new filter element (408), cover plate (403) is covered and cover plate fixing bolts (402) are used for tightening up, and filter element replacement is completed.

Description

Vacuum system bag inlet and outlet filtering device Technical Field The utility model belongs to the technical field of filter devices, and particularly relates to a vacuum system bag inlet and outlet filter device. Background Dust usually refers to mechanical processes such as crushing, screening and conveying in the solid material processing process, or processes such as burning, high-temperature melting and chemical reaction, various industrial dust is often emitted in the industrial production process to damage the air environment of workshops, harm the physical health of operators, damage workshop machine equipment, pollute the atmospheric environment and cause social public nuisance, therefore, the dust needs to be filtered before being discharged, a filter element needs to be frequently replaced when the filtering device is used, the existing filtering device is used, however, the filter element is replaced by directly opening a filtering sealing door, in addition, dust collected on the filter blows the dust into a dust collecting barrel in a compressed air back-blowing mode, then the dust is cleaned manually, the operation process must ensure that the dust is harmless to human bodies, the direct replacement of the filter element can cause the human bodies to be contacted with toxic materials for materials, thereby influencing the safety of personnel, meanwhile, the rear end of the existing filter is generally connected with a fan, the vacuum degree which can be generated by the fan is generally not higher than-50 kpa, and the filter is not suitable for vacuum systems such as screw vacuum pumps and rotary vacuum pumps with high vacuum degree. Disclosure of utility model Aiming at the defects of the prior art, the utility model aims to provide a vacuum system bag inlet and outlet filter device, which can replace a filter element and collect dust in a bag inlet and outlet mode to avoid the leakage of the dust in the operation process, thereby protecting the safety of operators and surrounding environment. The technical scheme is that the vacuum system bag inlet and outlet filtering device comprises a medium-efficiency filter, a high-efficiency filter and a bracket, wherein the medium-efficiency filter and the high-efficiency filter are fixedly arranged on the bracket, the medium-efficiency filter and the high-efficiency filter are connected through a pipeline, an inlet is formed in the left side of the medium-efficiency filter, an outlet is formed in the right side of the high-efficiency filter, a filter element is arranged in the medium-efficiency filter, a pulse back flushing pipe is arranged in the filter element, a pulse back flushing valve is arranged on the medium-efficiency filter, one end of the pulse back flushing valve is communicated with the pulse back flushing pipe, and the other end of the pulse back flushing valve is communicated with an air storage tank. Preferably, a cone hopper is arranged below the medium-efficiency filter, a valve is arranged below the cone hopper, and a dust collecting port is arranged below the valve. Preferably, a cover plate is arranged at a filter port of the medium-efficiency filter through a fixing bolt. Preferably, the medium-efficiency filter is provided with a medium-efficiency differential pressure sensor, the high-efficiency filter is provided with a high-efficiency differential pressure sensor, the medium-efficiency differential pressure sensor is connected to the pipelines at two sides of the medium-efficiency filter through a medium-efficiency differential pressure air inlet pipe and a medium-efficiency differential pressure air outlet pipe, and the high-efficiency differential pressure sensor is connected to the pipelines at two sides of the high-efficiency filter through a high-efficiency differential pressure air inlet pipe and a high-efficiency differential pressure air outlet pipe. Preferably, when the filter element is replaced, the PE bag is sleeved at the filter opening, the PE bag is tightly sealed by using the O-shaped ring, the cover plate fixing bolt on the cover plate is loosened, the cover plate is removed, the filter element fixing bolt is loosened again, the filter element is removed, the middle part of the PE bag is tightly tied by using the binding belt, the PE bag is divided into two parts, scissors are used for cutting off from the middle part of the binding belt, the PE bag is separated, a new filter element is placed in the new PE bag, the new filter element is integrally sleeved outside the old PE bag, the old PE bag is removed from the new PE bag, the new filter element is filled in the filter element, the filter element fixing bolt is filled in the fixed filter element, the cover plate is covered, and the cover plate fixing bolt is filled in and screwed up, so that the replacement of the filter element is completed. Compared with the prior art, the utility model has the following advantages: The utility model uses compressed a