CN216573590U

CN216573590U - Filter equipment of vacuum pump front stage

Info

Publication number: CN216573590U
Application number: CN202122880801.XU
Authority: CN
Inventors: 孙旭
Original assignee: Heyuan Baier Technology Co ltd
Current assignee: Heyuan Baier Technology Co ltd
Priority date: 2021-11-23
Filing date: 2021-11-23
Publication date: 2022-05-24
Anticipated expiration: 2031-11-23

Abstract

The utility model discloses a front-stage filtering device of a vacuum pump, which comprises a fixed plate, the vacuum pump and a filtering box, wherein the filtering box is used for filtering and isolating dust, the filtering box and the vacuum pump are both arranged on the fixed plate, the upper end of one side of the filtering box, which is far away from the vacuum pump, is communicated with a feeding pipe for dust removal, and an electrostatic dust removal assembly and a cloth bag dust removal assembly are arranged in the filtering box; the bag-type dust collection assembly comprises a secondary dust collection cavity, a gas purification cavity and a filter bag, wherein the secondary dust collection cavity is used for receiving gas treated by the electrostatic dust collection assembly. The utility model can filter and isolate the dust in the raw materials, can clean the dust attached to the filter bag without detaching the filter bag, and effectively solves the problem that the vacuum pump is blocked by the dust.

Description

Filter equipment of vacuum pump front stage

Technical Field

The utility model relates to the technical field of vacuum pumps, in particular to a filtering device at the front stage of a vacuum pump.

Background

The blanking of sheet production line extruder adopts the vacuum to take out the material, vacuums through the vacuum pump evacuation, makes to form certain vacuum degree in the hopper, and this vacuum hopper is in with the aggregate evacuation hopper of desicator, in fact because mix not few dust in the raw materials, therefore often need set up the filter equipment of vacuum pump front-end between vacuum pump and inlet pipe.

The filtering device of the prior vacuum pump front stage has the defects of unsatisfactory dust isolation effect and still has a lot of dust entering the vacuum pump in the actual use process, and in addition, the filtering sheet or the filtering bag needs to be manually and periodically detached and cleaned, so that the vacuum pump front stage filtering device is inconvenient.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects that the dust isolation effect is not ideal and a filter disc or a filter bag needs to be manually and periodically detached and cleaned in the prior art, and provides a front-stage filtering device of a vacuum pump.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a filtering device at the front stage of a vacuum pump comprises a fixing plate, the vacuum pump and a filtering box, wherein the filtering box is used for filtering and isolating dust, the filtering box and the vacuum pump are both arranged on the fixing plate, the upper end of one side, away from the vacuum pump, of the filtering box is communicated with a feeding pipe for dust collection, and an electrostatic dust collection assembly and a cloth bag dust collection assembly are arranged in the filtering box;

the bag dust removal assembly comprises a second-stage dust removal cavity, a gas purification cavity and a filter bag, the second-stage dust removal cavity is used for receiving gas treated by an electrostatic dust removal assembly, the filter bag is used for communicating the second-stage dust removal cavity and the gas purification cavity, the filter bag is used for further filtering dust in the second-stage dust removal cavity, the gas purification cavity is communicated with a vacuum pump through a second-stage vent hole, a one-way valve used for controlling the gas flow direction is installed in the second-stage vent hole, a blowing pump is fixedly installed on the outer side wall of the filter box, and the blowing pump is used for reversely flushing dust on the filter bag.

Preferably, the electrostatic precipitator subassembly includes electrostatic precipitator chamber, many connecting rods, many fine hair stick, a plurality of glass section of thick bamboo, connection piece and two sets of elastic connection unit, the electrostatic precipitator chamber is located the one side of keeping away from the net air cavity in the rose box, and the electrostatic precipitator chamber is used for communicating with the inlet pipe, many connecting rod fixed mounting is at electrostatic precipitator intracavity wall, and many connecting rods are used for installing the fine hair stick, and is a plurality of a glass section of thick bamboo is used for producing static with the friction of fine hair stick, the connection piece is used for a plurality of glass section of thick bamboo of fixed connection, and is two sets of elastic connection unit is used for fixing the connection piece at electrostatic precipitator intracavity wall.

Preferably, each group of elastic connection units comprises a telescopic column and a spring, the telescopic column is used for fixing the connecting sheet on the inner wall of the electrostatic dust removal cavity, and the spring is sleeved on the telescopic column and used for driving the connecting sheet and the glass cylinder to vibrate.

Preferably, the electrostatic dust removal cavity is communicated with the secondary dust removal cavity through a primary air vent, and the primary air vent is used for sending the gas subjected to electrostatic dust removal treatment into the secondary dust removal cavity.

Preferably, the lower end of the side wall of the filter box, which is far away from the vacuum pump, is provided with an ash discharging port for discharging ash, and a sealing plate for plugging is hinged in the ash discharging port.

Preferably, the output end of the vacuum pump is fixedly provided with a connecting disc, and a plurality of groups of fastening bolts for reinforcing connection are fastened on the connecting disc in a threaded manner.

The utility model has the beneficial effects that:

the fluff rod is arranged in the electrostatic dust collection cavity, the glass cylinder and the elastic connecting element are matched for use, and the glass cylinder and the fluff rod are rubbed to generate static electricity by utilizing the vibration of the vacuum pump, so that the dust can be subjected to primary treatment;

the dust can be secondarily filtered through the matching of the secondary dust removal cavity, the air purification cavity and the filter bag, the dust is prevented from entering the vacuum pump, the blades of the vacuum pump are prevented from being blocked, the dust on the filter bag can be automatically backflushed through the matching of the air blowing pump and the one-way valve, and the dust is not required to be manually cleaned.

Drawings

Fig. 1 is a schematic overall structure diagram of a filtering apparatus at a front stage of a vacuum pump according to the present invention;

FIG. 2 is a schematic view of the internal structure of a filter box of a filtering apparatus at the front stage of a vacuum pump according to the present invention;

fig. 3 is a schematic view of a connection structure between a vacuum pump and a filter box according to a second embodiment of the present invention.

In the figure: 1 fixed plate, 2 vacuum pumps, 3 inlet pipes, 4 filter boxes, 5 air blowing pumps, 6 electrostatic dust removal cavities, 7 secondary dust removal cavities, 8 air purification cavities, 9 connecting rods, 10 fluff rods, 11 glass cylinders, 12 connecting pieces, 13 telescopic columns, 14 springs, 15 ash discharge openings, 16 filter bags, 17 primary air vents, 18 secondary air vents, 19 connecting discs and 20 fastening bolts.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1-2, a filtering device at the front stage of a vacuum pump comprises a fixed plate 1, a vacuum pump 2 and a filtering box 4, wherein the filtering box 4 is used for filtering and isolating dust, the filtering box 4 and the vacuum pump 2 are both installed on the fixed plate 1, the upper end of one side, away from the vacuum pump 2, of the filtering box 4 is communicated with a feeding pipe 3 for dust removal, the lower end of the side wall, away from the vacuum pump 2, of the filtering box 4 is provided with an ash discharging port 15 for ash discharge, a sealing plate for plugging is hinged in the ash discharging port 15, the dust accumulated in the filtering box 4 can be washed in time through the arrangement of the ash discharging port 15 and the sealing plate, and an electrostatic dust removal assembly and a cloth bag dust removal assembly are arranged in the filtering box 4;

the electrostatic dust collection assembly comprises an electrostatic dust collection cavity 6, a plurality of connecting rods 9, a plurality of fluff rods 10, a plurality of glass cylinders 11, a connecting sheet 12 and two groups of elastic connecting units, wherein the electrostatic dust collection cavity 6 is positioned at one side, far away from the air purification cavity 8, in the filter box 4, the electrostatic dust collection cavity 6 is communicated with the feeding pipe 3, the connecting rods 9 are fixedly arranged on the inner wall of the electrostatic dust collection cavity 6, the fluff rods 10 are arranged on the connecting rods 9, the glass cylinders 11 are used for generating static electricity by friction with the fluff rods 10, the connecting sheet 12 is used for fixedly connecting the glass cylinders 11, the two groups of elastic connecting units are used for fixing the connecting sheet 12 on the inner wall of the electrostatic dust collection cavity 6, each group of elastic connecting units comprises a telescopic column 13 and a spring 14, the telescopic column 13 is used for fixing the connecting sheet 12 on the inner wall of the electrostatic dust collection cavity 6, and the spring 14 is sleeved on the telescopic column 13 and is used for driving the connecting sheet 12 and the glass cylinders 11 to vibrate, through the arrangement of the fluff rod 10 in the electrostatic dust removal cavity 6, the cooperation of the glass cylinder 11 and the elastic connecting element, the glass cylinder 11 and the fluff rod 10 are rubbed to generate static electricity by utilizing the vibration of the vacuum pump 2, and the dust can be preliminarily treated;

the bag-type dust removal assembly comprises a second-stage dust removal cavity 7, an air purification cavity 8 and a filter bag 16, wherein the second-stage dust removal cavity 7 is used for receiving gas treated by the electrostatic dust removal assembly, the electrostatic dust removal cavity 6 is communicated with the second-stage dust removal cavity 7 through a first-stage vent hole 17, the first-stage vent hole 17 is used for sending the gas treated by electrostatic dust removal into the second-stage dust removal cavity 7, the filter bag 16 is used for communicating the second-stage dust removal cavity 7 with the air purification cavity 8, the filter bag 16 is used for further filtering dust in the second-stage dust removal cavity 7, secondary filtering can be carried out on the dust through the matching of the second-stage dust removal cavity 7, the air purification cavity 8 and the filter bag 16, the dust is prevented from entering the vacuum pump 2, blades of the vacuum pump 2 are prevented from being blocked, the air purification cavity 8 is communicated with the vacuum pump 2 through a second-stage vent hole 18, a one-way valve used for controlling the flow direction of the gas is arranged in the second-stage vent hole 18, a blowing pump 5 is fixedly arranged on the outer side wall of the filter box 4, the air pump 5 is used for flushing dust on the filter bag 16, and the dust on the filter bag 16 can be automatically flushed through the matching of the air pump 5 and the one-way valve without manual cleaning.

Example two

Referring to fig. 3, in a first comparative example, as another embodiment of the present invention, a connecting plate 19 is fixedly installed at an output end of a vacuum pump 2, a plurality of fastening bolts 20 for reinforcing connection are screwed on the connecting plate 19, and the connecting plate 19 and the vacuum pump 2 are detachably connected, so that when a part of the two is damaged, the two can be replaced in time.

According to the utility model, the vacuum pump 2 works to drive the fixing plate 1 to vibrate, the filter box 4 drives the elastic connecting unit, the connecting sheet 12 and the glass cylinder 11 to vibrate relative to the fluff rod 10, the fluff rod 10 and the glass cylinder 11 rub to generate static electricity, the glass cylinder 11 adsorbs dust, gas subjected to electrostatic dust collection enters the secondary dust collection cavity 7, the dust can be effectively isolated from entering the vacuum pump 2 under the further dust collection treatment of the filter bag 16, when the dust on the filter bag 16 is too much, the air blowing pump 5 is started, and the air blowing pump 5 can back flush the dust of the filter bag 16, so that the filter bag does not need to be frequently replaced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A filtering device of a vacuum pump front stage comprises a fixing plate (1), a vacuum pump (2) and a filtering box (4), wherein the filtering box (4) is used for filtering and isolating dust, and the filtering box (4) and the vacuum pump (2) are both arranged on the fixing plate (1), and is characterized in that the upper end of one side, away from the vacuum pump (2), of the filtering box (4) is communicated with a feeding pipe (3) for dust collection, and an electrostatic dust collection assembly and a cloth bag dust collection assembly are arranged in the filtering box (4);

cloth bag dust removal subassembly includes second grade dust removal chamber (7), air purification chamber (8) and crosses filter bag (16), second grade dust removal chamber (7) are used for receiving the gas after electrostatic precipitator subassembly is handled, cross filter bag (16) and be used for intercommunication second grade dust removal chamber (7) and air purification chamber (8), and cross filter bag (16) and be used for further filtering the dust in second grade dust removal chamber (7), air purification chamber (8) and vacuum pump (2) are through second grade blow vent (18) intercommunication, and install the check valve that is used for controlling the gas flow direction in second grade blow vent (18), rose box (4) lateral wall fixed mounting has air-blowing pump (5), air-blowing pump (5) are used for the dust recoil that will cross on filter bag (16) to fall.

2. A filtering device of a vacuum pump front stage according to claim 1, the electrostatic dust collection assembly comprises an electrostatic dust collection cavity (6), a plurality of connecting rods (9), a plurality of fluff bars (10), a plurality of glass cylinders (11), a connecting sheet (12) and two groups of elastic connecting units, the electrostatic dust removing cavity (6) is positioned at one side of the filter box (4) far away from the air purifying cavity (8), the electrostatic dust collection cavity (6) is communicated with the feeding pipe (3), a plurality of connecting rods (9) are fixedly arranged on the inner wall of the electrostatic dust collection cavity (6), a plurality of connecting rods (9) are used for installing the fluff rods (10), a plurality of glass cylinders (11) are used for rubbing the fluff rods (10) to generate static electricity, the connecting piece (12) is used for fixedly connecting a plurality of glass cylinders (11), and the two groups of elastic connecting units are used for fixing the connecting piece (12) on the inner wall of the electrostatic dust removal cavity (6).

3. A filter device of a front stage of a vacuum pump according to claim 2, wherein each set of the elastic connection units comprises a telescopic column (13) and a spring (14), the telescopic column (13) is used for fixing the connecting sheet (12) on the inner wall of the electrostatic dust removal cavity (6), and the spring (14) is sleeved on the telescopic column (13) and used for driving the connecting sheet (12) and the glass cylinder (11) to vibrate.

4. A filter device of a vacuum pump forestage according to claim 3, characterized in that the electrostatic precipitator chamber (6) communicates with the secondary precipitator chamber (7) through a primary air vent (17), the primary air vent (17) being used to send the gas after electrostatic precipitation treatment into the secondary precipitator chamber (7).

5. The filtering device of the front stage of the vacuum pump as claimed in claim 1, wherein the lower end of the side wall of the filtering box (4) far away from the vacuum pump (2) is provided with an ash discharging port (15) for discharging ash, and a sealing plate for sealing is hinged in the ash discharging port (15).

6. A filtering device of a vacuum pump front stage according to claim 1, characterized in that the output end of the vacuum pump (2) is fixedly provided with a connecting disc (19), and a plurality of groups of fastening bolts (20) for reinforcing connection are screwed on the connecting disc (19).