CN210604111U

CN210604111U - Novel environment-friendly negative pressure screen analysis appearance

Info

Publication number: CN210604111U
Application number: CN201921184055.7U
Authority: CN
Inventors: 曹睿; 林维芳; 王洋
Original assignee: Jilin Jidong Concrete Co ltd
Current assignee: Jilin Jidong Concrete Co ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-05-22
Anticipated expiration: 2029-07-25

Abstract

The utility model discloses a novel environment-friendly negative pressure screen analyzer, which comprises a casing, wherein a membrane box is arranged on the upper part of the casing, a screen membrane is arranged at the bottom of the membrane box, a mounting hole is arranged on the upper part of the casing, and the membrane box is fixed in the mounting hole through a screw; a sealing cover is arranged above the diaphragm capsule; the novel environment-friendly negative pressure screen analyzer replaces a traditional long multi-fold structure by the arranged bent air inlet pipe, so that the air inlet pipe is completely sealed in the shell, the structure is simpler, the extraction effect is better, the manufacturing cost is lower, and the environment-friendly negative pressure screen analyzer is more energy-saving and environment-friendly; meanwhile, the moving distance of the dust in the air inlet pipe is shorter, the moving speed is higher, and the accumulation of the dust in the air inlet pipe is less by the bending structure at the tail part of the air inlet pipe; through the water purification case, closing plate and the filter structure that set up, solved traditional tail dirt along with the problem of air current outflow water purification case for the purifying effect of tail dirt is better, more environmental protection.

Description

Novel environment-friendly negative pressure screen analysis appearance

Technical Field

The utility model relates to a negative pressure sieve analysis appearance field specifically is novel environment-friendly negative pressure sieve analysis appearance.

Background

When the negative pressure sieve analyzer works by using air flow as a power medium for sieving, the whole system keeps a negative pressure state, the fine powder material to be detected in the screen is in a flow state under the action of the air flow sprayed by the rotating air nozzle and moves along with the air flow, wherein fine particles with the particle size smaller than the aperture of the screen are driven by the air flow to be pumped away through the screen, and coarse particles with the particle size larger than the aperture of the screen are left in the screen, so that the purpose of sieving is achieved.

At present, most of popular configurations of negative pressure screening analyzers use a vertical high-power dust collector as a negative pressure source of the negative pressure screening analyzer and use a small cyclone cylinder as a pre-dedusting device. During screening, the screened objects and a large amount of air enter the cyclone cylinder, and the dust-containing air which is not collected by the cyclone cylinder enters the dust collector. The air discharged after being filtered by the filter screen of the dust collector still contains part of ultrafine dust with the particle size smaller than the pore size of the filter screen. Such ultra fine particle size dust is more harmful to human body in dust pollution than large particle size dust. The negative pressure sieve analyzer is generally placed indoors for use, and the dust collector directly discharges waste air indoors through the exhaust port, so that secondary pollution is caused to an analysis room and an operator.

The existing negative pressure screen analyzer generally has the problem of poor tail dust treatment, the existing structure is that a water purifying device is directly additionally arranged at the position of a tail pipe, the head of the tail pipe is directly put into water, and the air flow discharged by a dust collector is large, so that the air flow can directly emerge out of the water surface, and the dust flows out of the water surface along with the air flow, so that the purifying effect of the water purifying device is poor, and the requirement of environmental protection cannot be met; meanwhile, the existing negative pressure screen analyzer has a complex structure, is inconvenient to use and cannot well meet the use requirement; therefore, the invention of a novel environment-friendly negative pressure screen analyzer is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel environment-friendly negative pressure sieve analysis appearance to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the novel environment-friendly negative pressure screen analyzer comprises a casing, wherein a membrane box is arranged at the upper part of the casing, a screen membrane is arranged at the bottom of the membrane box, a mounting hole is formed in the upper part of the casing, and the membrane box is fixed in the mounting hole through a screw; a sealing cover is arranged above the diaphragm capsule; an air inlet is arranged on the sealing cover; an air inlet pipe is arranged below the diaphragm capsule and is a bent pipe; the bottom of the diaphragm capsule is provided with a dust suction port, and the upper end of an air inlet pipe of the dust collector is fixed at the dust suction port through a screw; a connecting port is arranged at the bent part of the air inlet pipe, and a filter is arranged at the connecting port; a dust collecting box is arranged below the tail end of the air inlet pipe; a dust collector is arranged below the connecting port, a front air guiding pipe is arranged at the front part of the dust collector, and the front end of the front air guiding pipe is connected with the connecting port; the rear part of the dust collector is provided with a rear air duct, a water purifying tank is arranged below the dust collector, and a sealing plate is arranged on the water purifying tank; the front part of the rear air duct is provided with a one-way valve; the sealing plate is provided with an air outlet, and a filter is arranged on the air outlet.

As a further aspect of the present invention: the sealing cover is made of glass, a fixing head is arranged at the lower part of the sealing cover, a fixing seat matched with the fixing head is arranged at the upper part of the diaphragm capsule, and the sealing cover is arranged on the diaphragm capsule in an interference fit manner; a filter screen is arranged on the air inlet; the bend angle of the bend is 150 degrees.

As a further aspect of the present invention: the filter is of a multi-layer filter screen structure and is fixed at the connecting port in an interference fit mode.

As a further aspect of the present invention: the tail end of the air inlet pipe is vertically arranged; the dust collector is fixed in the shell through bolts and nuts; the water purifying tank is fixed in the shell through bolts and nuts; the both sides of closing plate are provided with the slide rail, and the upper portion of water purification case is provided with the spout with slide rail matched with, and the closing plate passes through the cooperation of slide rail spout to be installed on the water purification case.

As a further aspect of the present invention: the upper surface of the sealing plate is provided with a fixing hole, and the rear air duct is fixed in the fixing hole in a sealing manner.

Compared with the prior art, the beneficial effects of the utility model are that: the novel environment-friendly negative pressure screen analyzer replaces a traditional long multi-fold structure by the arranged bent air inlet pipe, so that the air inlet pipe is completely sealed in the shell, the structure is simpler, the extraction effect is better, the manufacturing cost is lower, and the environment-friendly negative pressure screen analyzer is more energy-saving and environment-friendly; meanwhile, the moving distance of the dust in the air inlet pipe is shorter, the moving speed is higher, and the accumulation of the dust in the air inlet pipe is less by the bending structure at the tail part of the air inlet pipe; through the water purification case, closing plate and the filter structure that set up, solved traditional tail dirt along with the problem of air current outflow water purification case for the purifying effect of tail dirt is better, more environmental protection.

Drawings

Fig. 1 is a schematic structural diagram of a novel environment-friendly negative pressure screen analyzer.

Fig. 2 is a schematic structural diagram of a screening structure in the novel environment-friendly negative pressure screen analyzer.

Fig. 3 is a schematic structural diagram of a bellows in the novel environment-friendly negative pressure screen analyzer.

Fig. 4 is a schematic structural view of a dust suction port in the novel environment-friendly negative pressure screen analyzer.

In the figure: the dust collector comprises a casing 1, a membrane box 2, a screen membrane 3, a dust collecting box 4, a sealing cover 5, a dust collector 6, an air inlet 7, a mounting hole 8, a connecting port 9, an air inlet pipe 10, a sealing plate 11, a filter 12, a one-way valve 13, a water purifying tank 14, a dust suction port 15, an air outlet 16, a front air guide pipe 17 and a rear air guide pipe 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 4, in the embodiment of the present invention, the novel environment-friendly negative pressure screen analyzer includes a casing 1, a membrane box 2 is disposed on an upper portion of the casing 1, a screen membrane 3 is disposed at a bottom of the membrane box 2, a mounting hole 8 is disposed on an upper portion of the casing 1, and the membrane box 2 is fixed in the mounting hole 8 by a screw; a sealing cover 5 is arranged above the diaphragm capsule 2, the sealing cover 5 is made of glass, a fixing head is arranged at the lower part of the sealing cover 5, a fixing seat matched with the fixing head is arranged at the upper part of the diaphragm capsule 2, and the sealing cover 5 is arranged on the diaphragm capsule 2 in an interference fit manner; an air inlet 7 is formed in the upper surface of the sealing cover 5, a filter screen is arranged on the air inlet 7 and used for filtering external dust and preventing the external dust from entering the diaphragm capsule 2; the sealing cover 5 is used for sealing the diaphragm capsule 2 and preventing dust from entering the diaphragm capsule 2 to influence the detection result; the capsule 2 is used for containing samples, so that the dust collector 6 can conveniently extract the samples; an air inlet pipe 10 is arranged below the diaphragm capsule 2, the air inlet pipe 10 is a bent pipe, and the bent angle of the bent pipe is 150 degrees, so that dust flows out of the front end of the bent pipe; the bottom of the diaphragm capsule 2 is provided with a dust collection port 15, and the upper end of an air inlet pipe 10 of the dust collector 6 is fixed at the dust collection port 15 through a screw; a connecting port 9 is arranged at the bent part of the air inlet pipe 10, a filter 12 is arranged at the connecting port 9, the filter 12 is of a multi-layer filter screen structure, and the filter 12 is fixed at the connecting port 9 in an interference fit manner; the filter 12 is used for filtering dust so that the dust is left in the air inlet pipe 10; the end of the air inlet pipe 10 is vertically arranged, so that the purpose of preventing dust from being sucked back is achieved; a dust collecting box 4 is arranged below the tail end of the air inlet pipe 10, and the dust collecting box 4 is used for collecting extracted dust;

referring to fig. 1-2, in the embodiment of the present invention, a dust collector 6 is disposed below the connection port 9, the dust collector 6 is fixed in the casing 1 through bolts and nuts, a front air guiding pipe 17 is disposed at the front of the dust collector 6, and the front end of the front air guiding pipe 17 is connected to the connection port 9; the rear part of the dust collector 6 is provided with a rear air duct 18, a clean water tank 14 is arranged below the dust collector 6, the clean water tank 14 is fixed in the machine shell 1 through bolts and nuts, a sealing plate 11 is arranged on the upper surface of the clean water tank 14, slide rails are arranged on two sides of the sealing plate 11, the upper part of the clean water tank 14 is provided with a slide groove matched with the slide rails, and the sealing plate 11 is arranged on the clean water tank 14 through the matching of the slide rails and the slide groove; a fixing hole is formed in the upper surface of the sealing plate 11, the rear air duct 18 is fixed in the fixing hole in a sealing mode, a one-way valve 13 is arranged at the front part of the rear air duct 18, and the one-way valve 13 is used for preventing the dust collector 6 from generating water return when the dust collector is stopped; the sealing plate 11 is provided with an air outlet 16, the air outlet 16 is provided with a filter 12, and the filter 12 is used for carrying out secondary sealing on dust so as to prevent the dust from flowing out of the water purifying tank 14 along with too fast air and improve the purifying effect;

when the device is used, a sample is added into the diaphragm capsule 2, then the sample is extracted through the dust collector 6, cement is filtered through the filter membrane, dust with small particle size is sucked into the air inlet pipe 10, impurities are left in the diaphragm capsule 2, and the cement is screened; then, the dust with small granularity flows downwards through the air inlet pipe 10 and flows to the connecting port 9, the dust is filtered through the filter 12, and then the dust flows into the dust collection box through the bent structure of the air inlet pipe 10, so that the dust is recycled; the filtered air flows into the clean water tank 14 through the front air duct 17 and the rear air duct 18, and extremely tiny dust is collected through the clean water tank 14; the dust coming out with the air is filtered for the second time through the filter 12 on the air outlet 16; the water is blocked by the one-way valve 13 to prevent the water from flowing back into the dust collector 6.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The novel environment-friendly negative pressure screen analyzer comprises a casing (1) and is characterized in that a membrane box (2) is arranged at the upper part of the casing (1), a screen membrane (3) is arranged at the bottom of the membrane box (2), a mounting hole (8) is arranged at the upper part of the casing (1), and the membrane box (2) is fixed in the mounting hole (8) through a screw; a sealing cover (5) is arranged above the diaphragm capsule (2); an air inlet (7) is arranged on the sealing cover (5); an air inlet pipe (10) is arranged below the diaphragm capsule (2), and the air inlet pipe (10) is a bent pipe; the bottom of the diaphragm capsule (2) is provided with a dust collection port (15), and the upper end of an air inlet pipe (10) of the dust collector (6) is fixed at the dust collection port (15) through a screw; a connecting port (9) is arranged at the bent part of the air inlet pipe (10), and a filter (12) is arranged at the connecting port (9); a dust collecting box (4) is arranged below the tail end of the air inlet pipe (10); a dust collector (6) is arranged below the connecting port (9), a front air guide pipe (17) is arranged at the front part of the dust collector (6), and the front end of the front air guide pipe (17) is connected with the connecting port (9); a rear air duct (18) is arranged at the rear part of the dust collector (6), a water purifying tank (14) is arranged below the dust collector (6), and a sealing plate (11) is arranged on the water purifying tank (14); the front part of the rear air duct (18) is provided with a one-way valve (13); an air outlet (16) is formed in the sealing plate (11), and a filter (12) is mounted on the air outlet (16).

2. The novel environment-friendly negative pressure screen analyzer according to claim 1, wherein the sealing cover (5) is made of glass, a fixing head is arranged at the lower part of the sealing cover (5), a fixing seat matched with the fixing head is arranged at the upper part of the diaphragm capsule (2), and the sealing cover (5) is arranged on the diaphragm capsule (2) in an interference fit manner; a filter screen is arranged on the air inlet (7); the bend angle of the bend is 150 degrees.

3. The novel environment-friendly negative pressure screen analyzer according to claim 1, wherein the filter (12) is of a multi-layer filter screen structure, and the filter (12) is fixed at the connecting port (9) through interference fit.

4. The novel environment-friendly negative pressure sieve analyzer according to claim 1, wherein the tail end of the air inlet pipe (10) is vertically arranged; the dust collector (6) is fixed in the machine shell (1) through bolts and nuts; the water purifying tank (14) is fixed in the machine shell (1) through bolts and nuts; the both sides of closing plate (11) are provided with the slide rail, and the upper portion of water purification case (14) is provided with the spout with slide rail matched with, and the cooperation that closing plate (11) passed through the slide rail spout is installed on water purification case (14).

5. The novel environment-friendly negative pressure screen analyzer according to claim 1, wherein the sealing plate (11) is provided with a fixing hole thereon, and the rear air duct (18) is hermetically fixed in the fixing hole.