CN216170371U

CN216170371U - Polyvinyl acetate emulsion filter equipment

Info

Publication number: CN216170371U
Application number: CN202122739889.3U
Authority: CN
Inventors: 黄永生
Original assignee: Guangzhou Yuanye Industrial Co ltd
Current assignee: Guangzhou Yuanye Industrial Co ltd
Priority date: 2021-11-09
Filing date: 2021-11-09
Publication date: 2022-04-05
Anticipated expiration: 2031-11-09

Abstract

The utility model discloses a polyvinyl acetate emulsion filtering device which comprises a filtering tank, a slow flow cover, a first tank body arranged in the filtering tank, a second tank body arranged in the first tank body, a first impurity pumping mechanism, a second impurity pumping mechanism, a piston tank communicated with the first impurity pumping mechanism and the second impurity pumping mechanism, a jet flow pipe and a jet head, wherein the first tank body is provided with a first inlet and a second outlet; the piston tank comprises a piston tank body, a hydraulic cylinder arranged at the top of the piston tank body, a piston plate arranged in the piston tank body, an impurity pumping cavity, a liquid storage cavity, an impurity outlet pipe and a third one-way valve; through the cooperation of first miscellaneous mechanism of taking out, second miscellaneous mechanism and piston jar, the realization utilizes the pneumatic cylinder extension to make the emulsion of stock solution intracavity strike the impurity on the first jar of body and the second jar of body, impurity is taken out the negative pressure that the intracavity formed of taking out afterwards and is siphoned away, thereby realizes automatic row of impurity, and improved the filtration efficiency and the filter effect of the first jar of body and the second jar of body, still realized continuous filtration, production efficiency is high.

Description

Polyvinyl acetate emulsion filter equipment

Technical Field

The utility model relates to the field of chemical production equipment, in particular to a polyvinyl acetate emulsion filtering device.

Background

The polyvinyl acetate emulsion adhesive is commonly called as milky white adhesive, is a water-based product and is used as a building adhesive; the milky white glue is a milky white viscous liquid prepared by polymerizing vinyl acetate monomers under the action of materials such as an initiator, a protective adhesive and the like. The adhesive is divided into types such as strong milk white adhesive, milk white adhesive I type, milk white adhesive II type and the like according to requirements and purposes; the vinyl acetate polymer is mainly used as a bonding agent and is used in the industries of wood, textile, coating, paper processing, building and the like. In the process of producing the polyvinyl acetate emulsion, the polyvinyl acetate emulsion needs to be filtered, so that impurities in the emulsion are cleaned, but the impurities are filtered by adopting a filter screen in the conventional filtering equipment, and the impurities are accumulated on the filter screen after long-time continuous filtration, so that the production has to be stopped to replace or clean the filter screen, and the defects of low filtering efficiency and low production efficiency are caused.

SUMMERY OF THE UTILITY MODEL

In view of the above, the present invention aims to provide a polyvinyl acetate emulsion filtering apparatus with high filtering efficiency, automatic impurity removal, improved filtering effect and improved production efficiency.

In order to solve the technical problems, the technical scheme of the utility model is as follows: the utility model provides a polyvinyl acetate emulsion filter equipment, is in including filtering the jar, sets up the lid that slows down of filtering tank deck portion sets up in filtering the jar and be located the first jar body of slowing down stream lid below sets up the internal second jar body of first jar sets up the first miscellaneous mechanism of taking out of the internal lower extreme of first jar sets up the miscellaneous mechanism is taken out to the second of the internal lower extreme of second jar, sets up filtering the jar side and with the piston jar of miscellaneous mechanism and the second of taking out is taken out miscellaneous mechanism and is linked together and communicate the filter jar and the jet flow pipe of piston tank bottom, and set up and be in two terminal injector heads of jet flow pipe.

Preferably, the piston tank comprises a piston tank body, a hydraulic cylinder arranged at the top of the piston tank body, a piston plate arranged in the piston tank body and fixed with the movable end of the hydraulic cylinder, an impurity pumping cavity arranged above the piston plate, a liquid storage cavity arranged below the piston plate, an impurity discharging pipe connected and communicated with the impurity pumping cavity, and a third one-way valve arranged on the impurity discharging pipe.

Preferably, the first impurity extracting mechanism comprises an impurity extracting pipe, impurity inlet pipes arranged on the impurity extracting pipe at equal intervals, a bell mouth arranged at the mouth of the impurity inlet pipe, and a baffle strip arranged above the bell mouth and in an inverted V shape.

Preferably, one end of the first impurity pumping mechanism is provided with a first one-way valve.

Preferably, the second impurity pumping mechanism is consistent with the first impurity pumping mechanism, a second one-way valve is arranged at one end of the second impurity pumping mechanism, and the tail end of the first impurity pumping mechanism is communicated with the second impurity pumping mechanism.

Preferably, a liquid inlet pipe is arranged at the top of the slow flow cover, and a slow flow net cover is arranged at the bottom of the slow flow cover.

Preferably, the bottom of the first tank body is provided with a first filter screen.

Preferably, the bottom of the second tank body is provided with a second filter screen.

Preferably, a liquid outlet pipe is arranged on the side face of the bottom of the filter tank.

The technical effects of the utility model are mainly embodied as follows: through the cooperation of first miscellaneous mechanism of taking out, second miscellaneous mechanism and piston jar, the realization utilizes the pneumatic cylinder extension to make the emulsion of stock solution intracavity strike the impurity on the first jar of body and the second jar of body, impurity is taken out the negative pressure that the intracavity formed of taking out afterwards and is siphoned away, thereby realizes automatic row of impurity, and improved the filtration efficiency and the filter effect of first filter screen and second filter screen, still realized continuous filtration, production efficiency is high.

Drawings

FIG. 1 is a schematic diagram of a polyvinyl acetate emulsion filtration unit according to the present invention;

FIG. 2 is an enlarged view of a portion of a filter device for polyvinyl acetate emulsion according to the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.

In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a pin connecting manner, or the like, which is commonly used in the prior art, and therefore, details thereof are not described in the present embodiment.

A polyvinyl acetate emulsion filtering device comprises a filtering tank 1, a slow flow cover 2 arranged at the top of the filtering tank 1 and used for reducing the impact of the entering liquid on a second filter screen 41, a first tank body 3 arranged in the filtering tank 1 and positioned below the slow flow cover 2 and used for carrying out secondary filtering on emulsion, a second tank body 4 arranged in the first tank body 3 and used for carrying out primary filtering on the emulsion, a first impurity pumping mechanism 5 arranged at the lower end in the first tank body 3 and used for pumping impurities, a second impurity pumping mechanism 6 arranged at the lower end in the second tank body 4, a piston tank 7 arranged at the side of the filtering tank 1 and communicated with the first impurity pumping mechanism 5 and the second impurity pumping mechanism 6 and used for generating reverse water flow so that the impurities are separated from the first filter screen 31 and the second filter screen 41, the impurities are sucked away by the first impurity pumping mechanism 5 and the second impurity pumping mechanism 6, and the jet pipe 8 is connected with and communicated with the filter tank 1 and the bottom of the piston tank 7, and the two injection heads 9 are arranged at the tail ends of the jet pipe 8 and are used for injecting the backflow liquid to the first filter screen 31 and the second filter screen 41; the top of the slow flow cover 2 is provided with a liquid inlet pipe 21, the bottom of the slow flow cover 2 is provided with a slow flow mesh enclosure 22, and the emulsion coming out of the liquid inlet pipe 21 is subjected to flow division and speed reduction by utilizing a porous structure on the slow flow mesh enclosure 22; the bottom of the first tank body 3 is provided with a first filter screen 31, the bottom of the second tank body 4 is provided with a second filter screen 41, and the bottom side of the filter tank 1 is provided with a liquid outlet pipe 11.

The piston tank 7 comprises a piston tank body 71, a hydraulic cylinder 72 arranged at the top of the piston tank body 71, a piston plate 73 arranged in the piston tank body 71 and fixed with the movable end of the hydraulic cylinder 72, an impurity pumping cavity 74 arranged above the piston plate 73, a liquid storage cavity 75 arranged below the piston plate 73, an impurity discharging pipe 76 connected and communicated with the impurity pumping cavity 74, and a third one-way valve 77 arranged on the impurity discharging pipe 76; when the hydraulic cylinder 72 extends, the piston plate 73 moves downwards, so that the space in the liquid storage chamber 75 is compressed, the emulsion is sprayed out from the spray pipe 8 and the spray head 9, the emulsion impacts the first filter screen 31 and the second filter screen 41, impurities adsorbed on the first filter screen 31 and the second filter screen 41 are impacted and fly, and the space in the impurity pumping chamber 74 is increased and generates negative pressure, so that the flying impurities are sucked into the impurity pumping chamber 74 by the first impurity pumping pipe 51 and the second impurity pumping pipe 51; when the hydraulic ram is retracted, the impurities in the impurity pumping chamber 74 are discharged from the impurity discharge pipe 76, and the filtered clean emulsion is sucked into the liquid storage chamber 75.

The first impurity pumping mechanism 5 comprises an impurity pumping pipe 51, impurity inlet pipes 52 arranged on the impurity pumping pipe 51 at equal intervals, a bell mouth 53 arranged at the pipe orifice of the impurity inlet pipe 52, and a stop bar 54 which is arranged above the bell mouth 53 and is in an inverted V shape, is used for preventing impurities from entering the bell mouth 53 before filtering, and can also guide the impurities into the bell mouth 53 in the impurity removing process; one end of the first impurity pumping mechanism 5 is provided with a first one-way valve 55; the second impurity pumping mechanism 6 is consistent with the first impurity pumping mechanism 5, a second one-way valve 61 is arranged at one end of the second impurity pumping mechanism 6, and the tail end of the first impurity pumping mechanism 5 is communicated with the second impurity pumping mechanism 6.

In this embodiment, the first, second and

third check valves

55, 61 and 77 are of the type H14W-16P.

The working principle is as follows: firstly, let in the emulsion through feed liquor pipe 21 in slow flow lid 2, utilize slow flow lid 2 to shunt the emulsion, thereby reduce the impact of emulsion to second filter screen 41, the emulsion gets into second jar of body 4 afterwards and utilizes second filter screen 41 to carry out first filtration to the emulsion, make some impurity stop at the upper surface of second filter screen 41, reuse first filter screen 31 to carry out second filtration to the emulsion afterwards, make some impurity stop on first filter screen 31 again, thereby obtain the emulsion of no impurity, and discharge from drain pipe 11; along with long-time continuous filtration, the impurities on the first filter screen 31 and the second filter screen 41 are accumulated too much, so that emulsion is difficult to pass through, thereby reducing the filtration efficiency and the filtration effect, at the moment, the piston plate 73 moves downwards through the extension of the hydraulic cylinder 72, so that the space in the liquid storage cavity 75 is compressed, the emulsion is sprayed out from the spray pipe 8 and the spray head 9, the emulsion impacts the first filter screen 31 and the second filter screen 41, the impurities adsorbed on the first filter screen 31 and the second filter screen 41 are impacted and flown away, and at the moment, the space of the impurity pumping cavity 74 is increased and negative pressure is generated, so that the flying impurities are sucked into the impurity pumping cavity 74 by the first impurity pumping pipe 51 and the second impurity pumping pipe 51; the hydraulic ram is then retracted, the impurities in the impurity extraction chamber 74 are discharged from the impurity discharge pipe 76, and the filtered emulsion is sucked into the liquid storage chamber 75 in preparation for the next impurity removal.

The above are only typical examples of the present invention, and besides, the present invention may have other embodiments, and all the technical solutions formed by equivalent substitutions or equivalent changes are within the scope of the present invention as claimed.

Claims

1. A polyvinyl acetate emulsion filter equipment which characterized in that: including filtering tank, the setting is in the lid that slowly flows at filtering tank top sets up filtering tank in and be located the first jar body of slowly flowing lid below sets up the internal second jar body of first jar sets up the first miscellaneous mechanism of taking out of the internal portion lower extreme of first jar sets up miscellaneous mechanism is taken out to the second of the internal portion lower extreme of second jar sets up filtering tank side and with the piston jar of miscellaneous mechanism intercommunication is taken out to first miscellaneous mechanism of taking out and second, connect and communicate the jet-propelled pipe of filtering tank and piston jar bottom portion, and set up two terminal shower nozzles of jet-propelled pipe.

2. A polyvinyl acetate emulsion filtration device according to claim 1 wherein: the piston jar includes the piston jar body, sets up the pneumatic cylinder at piston jar body top sets up the piston jar is internal and with the fixed piston plate of pneumatic cylinder expansion end sets up the miscellaneous chamber of taking out of piston plate top sets up the stock solution chamber of piston plate below, with take out miscellaneous chamber and connect and the play miscellaneous pipe of intercommunication, and set up and be in go out the third check valve on the miscellaneous pipe.

3. A polyvinyl acetate emulsion filtration device according to claim 1 wherein: the first impurity pumping mechanism comprises an impurity pumping pipe, impurity feeding pipes arranged on the impurity pumping pipe at equal intervals, a horn mouth arranged at the mouth of the impurity feeding pipe, and a stop bar arranged above the horn mouth and in an inverted V shape.

4. A polyvinyl acetate emulsion filtration device according to claim 1 wherein: one end of the first impurity pumping mechanism is provided with a first one-way valve.

5. A polyvinyl acetate emulsion filtration device according to claim 1 wherein: the second impurity pumping mechanism is consistent with the first impurity pumping mechanism, a second one-way valve is arranged at one end of the second impurity pumping mechanism, and the tail end of the first impurity pumping mechanism is communicated with the second impurity pumping mechanism.

6. A polyvinyl acetate emulsion filtration device according to claim 1 wherein: the top of slow flow lid is provided with the feed liquor pipe, the bottom of slow flow lid is provided with the slow flow screen panel.

7. A polyvinyl acetate emulsion filtration device according to claim 1 wherein: the bottom of the first tank body is provided with a first filter screen.

8. A polyvinyl acetate emulsion filtration device according to claim 1 wherein: the bottom of the second tank body is provided with a second filter screen.

9. A polyvinyl acetate emulsion filtration device according to claim 1 wherein: and a liquid outlet pipe is arranged on the side surface of the bottom of the filter tank.