CN213855187U

CN213855187U - Slurry circulating system

Info

Publication number: CN213855187U
Application number: CN202022439952.7U
Authority: CN
Inventors: 马东生; 韩昺琦; 李星; 赵德澍; 姚仁华; 李延凤; 林垚; 黄艳娟; 谭仲伟; 杨佩妍
Original assignee: Guangdong Taiji Power Technology Co ltd
Current assignee: Guangdong Taiji Power Technology Co ltd
Priority date: 2020-10-28
Filing date: 2020-10-28
Publication date: 2021-08-03
Anticipated expiration: 2030-10-28

Abstract

The utility model relates to a spraying equipment technical field discloses a thick liquids circulation system, including the feed tank that connects in order, spray gun and feed back jar, the feed back jar is including a jar body, arrange the inlet pipe of being connected with the spray gun on the jar body and the back flow of being connected with the feed tank, the one end that is located jar internal of inlet pipe is connected with the buffer, the buffer includes the buffer tube that is connected with the inlet pipe and extends to the bottom of the jar body, along the extending direction interval arrangement of buffer tube on the pipe wall of buffer tube have a plurality of liquid outlets, the buffer plate that extends to in the buffer tube has still been arranged along the department to the mouth of liquid outlet. In the internal thick liquids of inlet pipe entering jar got into the buffer tube earlier, thick liquids were cushioned by the buffer chip when the liquid outlet flows out, and the direction of liquid outlet is also perpendicular with the flow direction of thick liquids simultaneously, has reduced the speed that thick liquids flowed out from the liquid outlet, avoids liquid to flow out at a high speed from jar internal and produce the foam with air mixing to save the process of artifical clear foam, reduce cost and production time improve the productivity.

Description

Slurry circulating system

Technical Field

The utility model relates to a spraying equipment technical field especially relates to a thick liquids circulation system.

Background

The coating is a continuous film which is coated on the surface of a protected or decorated object and can form firm adhesion with the coated object, and is usually formed by taking resin, oil and emulsion as main materials, adding or not adding pigments and fillers, adding corresponding auxiliary agents, preparing slurry by using organic solvent or water, and spraying the slurry on the object by a spraying tool.

The pulse spraying equipment is common spraying equipment in modern spraying operation, when pulse spraying is carried out, slurry is conveyed to a spray gun from a feeding tank, the residual slurry after spraying of the spray gun flows into a return tank to be recovered, and the recovered slurry is conveyed to the feeding tank to be continuously sprayed to form a slurry circulating system.

When slurry of an existing slurry circulating system flows into a material return tank, the slurry is usually released into the tank naturally through a pipeline, the flow rate of the slurry is high, the slurry is mixed with air friction irregularly in a backflow mode to generate a large amount of foam, the slurry with the foam can change the slurry parameters sprayed out by a spray gun when being conveyed into a feeding tank again, products are unqualified, equipment alarm shutdown can be caused, foam needs to be cleared manually after the equipment alarm shutdown, raw materials are wasted, the cost is increased, the production time is prolonged, and the productivity is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the utility model provides a thick liquids circulation system to produce the foam when solving thick liquids natural release among the prior art and returning charge jar, lead to the product unqualified, artifical extravagant raw and other materials of foam of cleaing away increases cost, has increased production time and has reduced the problem of productivity simultaneously

In order to realize the above-mentioned purpose, the utility model provides a thick liquids circulation system, including feed tank, spray gun and the feed back jar of connecting in order, the feed back jar is including a jar body, the jar body on arranged the inlet pipe be connected with the spray gun and with the back flow that the feed tank is connected, being located of inlet pipe one end in the jar body is connected with the buffer, the buffer include with the buffer tube of the bottom of the inlet pipe connection and extending to the jar body, along the extending direction interval arrangement of buffer tube on the pipe wall of buffer tube have a plurality of liquid outlets, the buffering piece that extends to in the buffer tube has still been arranged along the department to the mouth of liquid outlet.

Preferably, the buffer chip becomes L shape structure, and the buffer chip includes linkage segment and vortex section, the linkage segment with the pipe wall of buffer tube is connected perpendicularly, the vortex section with the linkage segment is connected perpendicularly and is extended to the flow direction of reverse thick liquids.

Preferably, the liquid outlets are arranged at intervals along the circumferential direction of the buffer tube, and the buffer sheet is arranged at each liquid outlet.

Preferably, the end of the buffer tube is provided with a closing plate, and an annular outflow opening is arranged between the closing plate and the tube wall of the buffer tube.

Preferably, a flow deflector is further disposed on the sealing plate, and a flow passage with a gradually decreasing aperture along the flow direction of the liquid is provided between the flow deflector and the tube wall of the buffer tube.

Preferably, the guide vane is a conical vane with the bottom connected with the closing plate, and the diameter of the conical vane gradually increases along the flowing direction of the liquid.

Preferably, the feeding pipe is further connected with an exhaust pipe communicated with the buffer pipe, and the exhaust pipe is provided with an exhaust valve.

Preferably, the exhaust valve comprises a valve body and a valve core which is assembled in the valve body in a floating manner, the valve core comprises a floating ball and a valve needle which is arranged on the floating ball, and the valve body is provided with a gas outlet for the valve needle to float and open and close.

Preferably, a plurality of spray guns are arranged in parallel, the feeding end of each spray gun is connected with a liquid distributor connected with the feeding tank, and the discharging end of each spray gun is connected with a liquid collector connected with the return tank.

The embodiment of the utility model provides a thick liquids circulation system compares with prior art, and its beneficial effect lies in: the internal buffer that has been arranged of jar that returns the material jar, the thick liquids that get into jar internal through the inlet pipe are earlier in the buffer tube of buffer, the liquid outlet is seted up on the pipe wall of buffer tube, thick liquids are cushioned by the buffer spacer when flowing through the liquid outlet, the direction of liquid outlet is also perpendicular with the flow direction of thick liquids simultaneously, the speed that thick liquids flowed from the liquid outlet has been reduced, avoid liquid from jar internal high-speed outflow and produce the foam with air mixing, thereby the process of artifical foam of cleaing away has been saved, reduce cost and production time, the productivity is improved.

Drawings

FIG. 1 is a schematic diagram of a slurry circulation system according to the present invention;

FIG. 2 is a schematic diagram of the construction of a return tank of the slurry circulation system of FIG. 1;

FIG. 3 is a schematic diagram of the structure of the buffer of the feed-back tank of FIG. 2;

FIG. 4 is a schematic diagram of the construction of the buffer tube of the buffer of FIG. 3;

fig. 5 is a schematic view of the structure of a discharge valve of the slurry circulation system of fig. 2.

In the figure, 1, a tank body; 11. a feed pipe; 12. a return pipe; 2. a buffer; 21. a buffer tube; 22. closing the plate; 23. an outflow port; 24. a flow deflector; 25. a liquid outlet; 26. a buffer sheet; 3. an exhaust pipe; 4. an exhaust valve; 41. a valve body; 42. a valve core; 421. a floating ball; 422. a valve needle; 43. a gas outlet; 5. a feeding tank; 6. a liquid separator; 7. a spray gun; 8. a liquid collector; 9. a peristaltic pump.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

The utility model discloses a preferred embodiment of thick liquids circulation system, as shown in fig. 1 to 5, this thick liquids circulation system includes feed tank 5, knockout 6, spray gun 7, liquid trap 8 and feed back jar, connects in order through the connecting tube between feed tank 5, knockout 6, spray gun 7, liquid trap 8 and the feed back jar. The spray guns 7 are arranged in parallel, the feed ends of the spray guns 7 are connected with the liquid distributor 6 respectively, the discharge ends of the spray guns are connected with the liquid collector 8 respectively, the return tanks of the liquid collector 8 are connected, and the return tanks are connected with the feeding tank 5 through peristaltic pumps.

The feed back tank comprises a tank body 1, wherein a feed pipe 11 and a return pipe 12 are arranged in the tank body 1, the feed pipe 11 is horizontally arranged on the side wall of the tank body, and the feed pipe 11 is used for being connected with a spray gun 7 so as to enable slurry remained after the spray gun 7 sprays to flow into the tank body 1. The back flow pipe 12 is vertically arranged at the bottom of the tank body 1, so that the situation that slurry is left due to the fact that the pipe opening is too high is avoided, the back flow pipe 12 is used for being communicated with the feeding tank 5 of the spraying equipment, the slurry in the tank body 1 flows back to the feeding tank 5, and the slurry is recycled.

Still arranged buffer 2 in jar body 1, buffer 2 is connected with the one end that inlet pipe 11 is located jar body 1, and buffer 2 is used for buffering thick liquids, reduces the speed that thick liquids flow to jar internal 1. Buffer 2 includes the buffer tube 21 of being connected with inlet pipe 11, and buffer tube 21 extends to jar bottom of body 1, can utilize earlier thick liquids to carry out air separation to buffer tube 21, avoids the thick liquids and the air direct contact of back outflow.

As shown in fig. 3, the curve is the direction of flow of the liquid. Buffer tube 21 is L shape structure, and buffer tube 21's bottom is along jar body 1 bottom level extension, and shrouding 22 has still been arranged to buffer tube 21's tip, and shrouding 22 has the hem along buffer tube 21's axial extension, has annular egress opening 23 between the pipe wall of hem and buffer tube 21, and shrouding 22 and hem are used for buffering thick liquids, slow down the impact pressure of thick liquids, avoid producing the foam from thick liquids and the thick liquids striking in jar body 1 that buffer tube 21 flows out.

The closing plate 22 is further provided with a flow deflector 24, the flow deflector 24 is a conical sheet with the bottom connected with the closing plate 22, and the tip of the conical sheet faces the inner side of the buffer tube 21, that is, the diameter of the conical sheet gradually increases along the flow direction of the liquid, so that a flow channel with the aperture gradually decreasing along the flow direction of the liquid is formed between the flow deflector 24 and the tube wall of the buffer tube 21. The flow deflector 24 can reduce the impact pressure of the slurry, and avoid the slurry from impacting with the external slurry to generate foam due to excessive pressure.

The tube wall of the buffer tube 21 is provided with a plurality of liquid outlets 25 at intervals along the extending direction of the buffer tube 21, the liquid outlets 25 are arranged at intervals along the circumferential direction of the buffer tube 21, namely, the liquid outlets 25 are uniformly arranged on the tube wall of the buffer tube 21 in a matrix form, the liquid outlets 25 are arranged on the tube wall of the buffer tube 21, the direction of the liquid outlets 25 is perpendicular to the flowing direction of the slurry, and therefore the flowing speed of the slurry from the liquid outlets 25 is reduced.

The mouth edge of the liquid outlet 25 is also provided with a buffer sheet 26 extending into the buffer tube 21, and the buffer sheet 26 is arranged at a position downstream of the liquid outlet 25 in the flow direction of the slurry. The buffer sheet 26 is of an L-shaped structure, the buffer sheet 26 comprises a connecting section and a turbulence section which are integrally formed, the connecting section is vertically connected with the pipe wall of the buffer pipe 21, and the turbulence section is vertically connected with the connecting section and extends along the flowing direction of reverse slurry. The adjacent two buffer sheets 26 have a gap therebetween, and the gap forms a flow passage for the slurry to flow, so that the slurry can flow out from the liquid outlet 25. The buffer sheet 26 is used for buffering the slurry, reducing the flow rate of the slurry, and guiding the slurry to flow out along the liquid outlet 25.

Still be connected with blast pipe 3 on the inlet pipe 11, blast pipe 3 and buffer tube 21 intercommunication, blast pipe 3 extends along vertical direction, and blast pipe 3 is used for supplying the gaseous outflow in the thick liquids. An exhaust valve 4 is further arranged on the exhaust pipe 3, the exhaust valve 4 comprises a valve body 41 and a valve core 42 which is assembled in the exhaust pipe 3 in a floating manner, the valve core 42 comprises a floating ball 421 and a valve needle 422 which is arranged on the floating ball 421, and a gas outlet 43 for the floating opening and closing of the valve needle 422 is formed in the valve body 41. The gas in the slurry can move upwards to the valve body 41 of the exhaust valve 4, when the gas in the valve body 41 is excessive, the pressure in the valve body 41 is increased to cause the liquid level height of the slurry to move downwards, at the moment, the floating ball 421 moves downwards along with the liquid level under the self weight, so that the valve needle 422 moves downwards to open the gas outlet 43, and automatic exhaust is started; when the gas in the valve body 41 is less, the liquid level of the slurry is higher, and the liquid pushes the valve needle 422 to insert into the gas outlet 43 by buoyancy, so that the gas exhaust is stopped.

The utility model discloses a thick liquids circulation system is when using, with feed tank 5, knockout 6, spray gun 7, liquid trap 8 and feed back jar through the connecting line connection in order, liquid trap 8 is connected with feed pipe 11 of feed back jar, simultaneously with being connected through peristaltic pump 9 between feed tank 5 and the back flow 12 of feed back jar, when carrying out the spraying operation, continuously exert fixed atmospheric pressure to feed tank 5, thick liquids flow into knockout 6 under the effect of atmospheric pressure, the re-flow respectively flows into each spray gun 7, thick liquids after the spraying in spray gun 7 concentrate flow to liquid trap 8 in, get into jar body 1 by feed pipe 11 of this thick liquids circulation system again; bubbles in the slurry enter the exhaust valve 4 to be automatically exhausted under the action of liquid buoyancy, the slurry without the bubbles flows downwards into the buffer 2, and under the deceleration action of the buffer sheet 26 and the flow deflector 24, the slurry enters the pipe body from the liquid outlet 25 and the flow outlet 23, so that the phenomenon that the slurry is too fast and contacts with air to generate foam is avoided.

To sum up, the embodiment of the utility model provides a thick liquids circulation system, the internal buffer that has arranged of jar of its feed back jar, the thick liquids that get into jar internal through the inlet pipe are earlier in the buffer tube of buffer, the liquid outlet is seted up on the pipe wall of buffer tube, thick liquids are cushioned by the buffer block when the liquid outlet flows out, the direction of liquid outlet is also perpendicular with the flow direction of thick liquids simultaneously, the speed that thick liquids flowed out from the liquid outlet has been reduced, avoid liquid from jar internal high-speed outflow and produce the foam with the air-mixing, thereby the process of artifical clear foam has been saved, reduce cost and production time, the productivity is improved.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a thick liquids circulation system, its characterized in that, is including feed tank, spray gun and the feed back jar of connecting in order, the feed back jar is including a jar body, the jar body on arrange the inlet pipe be connected with the spray gun and with the back flow that the feed tank is connected, being located of inlet pipe one end in the jar body is connected with the buffer, the buffer include with the inlet pipe is connected and is extended to the buffer tube of the bottom of the jar body, along the extending direction interval arrangement of buffer tube on the pipe wall of buffer tube have a plurality of liquid outlets, the oral cavity of liquid outlet is located still to be arranged and is extended to the buffer plate in the buffer tube.

2. The slurry circulation system of claim 1, wherein the buffer sheet is in an L-shaped configuration, the buffer sheet including a connecting section and a spoiler section, the connecting section being perpendicularly connected to the wall of the buffer tube, the spoiler section being perpendicularly connected to the connecting section and extending in a direction opposite to the flow direction of the slurry.

3. The slurry circulation system according to claim 2, wherein the plurality of liquid outlets are arranged at intervals along a circumferential direction of the buffer tube, and the buffer sheet is arranged at each liquid outlet.

4. A slurry circulation system according to any of claims 1-3, wherein a closing plate is arranged at the end of the buffer tube, and wherein an annular outflow opening is provided between the closing plate and the wall of the buffer tube.

5. The slurry circulation system according to claim 4, wherein the sealing plate is further provided with a flow deflector, and a flow passage with a gradually reduced aperture along the flowing direction of the liquid is arranged between the flow deflector and the tube wall of the buffer tube.

6. The slurry circulation system according to claim 5, wherein the guide vane is a conical vane having a bottom connected to the sealing plate, and the diameter of the conical vane gradually increases along the flow direction of the liquid.

7. A slurry circulation system according to any one of claims 1 to 3, wherein an exhaust pipe is further connected to the feed pipe in communication with the buffer tube, the exhaust pipe having an exhaust valve disposed thereon.

8. The slurry circulation system according to claim 7, wherein the exhaust valve comprises a valve body and a valve core which is float-fitted in the valve body, the valve core comprises a floating ball and a valve needle which is arranged on the floating ball, and the valve body is provided with a gas outlet for the floating opening and closing of the valve needle.

9. A slurry circulation system according to any one of claims 1 to 3, wherein a plurality of the lances are arranged in parallel, a liquid separator connected to the supply tank is connected to a feed end of each lance, and a liquid collector connected to the return tank is connected to a discharge end of each lance.