CN211221997U

CN211221997U - Double-vacuum air exhaust system for reclaimed materials

Info

Publication number: CN211221997U
Application number: CN201921985865.2U
Authority: CN
Inventors: 张云; 李晓飞; 方建孟; 李绪海; 戈永红; 王仕江; 吴国金
Original assignee: Anhui Jieyun New Material Technology Co ltd
Current assignee: Anhui Jieyun New Material Technology Co ltd
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-08-11
Anticipated expiration: 2029-11-15

Abstract

The utility model relates to a reclaimed material production technical field, concretely relates to reclaimed material's two vacuum pumping system, including buffer tank, vacuum pump, the quantity of vacuum pump is two, two the vacuum pump is provided with the buffer tank respectively with the both ends of one side, two the inlet end of vacuum pump all is provided with first connecting pipe, and the one end and the buffer tank of vacuum pump are kept away from to first connecting pipe, the intercommunication, the outside both ends in one side of buffer tank all are provided with heat dissipation mechanism, heat dissipation mechanism includes the shielded box, the inside of shielded box is provided with communicating pipe, and communicating pipe is the crooked shape of multistage, the one end of communicating pipe is provided with the third connecting pipe, the shielded box is passed with the buffer tank intercommunication to the one end that communicating pipe was kept away from to the third connecting pipe. This reality is through being provided with two sets of vacuum pumps, through the mode of secondary evacuation, can separate out the micromolecule material from the material, and messenger's material particle surface is smooth, and the particle size is even and closely knit, and processing is smooth and easy.

Description

Double-vacuum air exhaust system for reclaimed materials

Technical Field

The utility model relates to a reclaimed material production technical field, concretely relates to two vacuum pumping systems of reclaimed material.

Background

Plastic products are widely used in the main fields of electrical industry, transportation, household appliances, building industry, packaging materials, instruments and meters, national defense aviation and the like, so higher technical requirements are put forward for equipment for producing plastic particles. The extruder has the working principle that raw materials are heated, melted, plasticized and mixed in a screw, and then are extruded, drawn, cooled and granulated through a die. In the extruder processing engineering, raw materials in the screw are gasified, degraded and precipitated to different degrees under a high-temperature state, so that a large amount of gas, precipitate and other small molecular substances are generated.

At present, in the single vacuum air exhaust system used by most of extruders, in the air exhaust process, because raw materials are in a molten semi-closed state between a screw cylinder and a screw, generated small molecular substances cannot be well released and are included in material particles, so that the defects of unsmooth production and processing, reduced mechanical properties of products, non-compact products and the like are caused.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a two vacuum pumping systems of reclaimed materials has overcome the not enough of prior art, and structural design is simple, and effectual solution is at the in-process of bleeding, because raw and other materials are in the semi-closed state of melting between spiral shell section of thick bamboo and screw rod, so the micromolecule material that produces can not be fine release and mix with in the material granule, lead to the problem that production and processing are not smooth and easy.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

a double-vacuum air exhaust system for reclaimed materials comprises buffer tanks and vacuum pumps, wherein the number of the vacuum pumps is two, the two vacuum pumps are respectively provided with two ends of the same side of each buffer tank, the air inlet ends of the two vacuum pumps are respectively provided with a first connecting pipe, one end of each first connecting pipe, which is far away from the vacuum pump, is communicated with the buffer tanks, and two ends of the outer part of one side of each buffer tank are respectively provided with a heat dissipation mechanism;

the heat dissipation mechanism includes the shielded box, the inside of shielded box is provided with communicating pipe, and communicating pipe is the multistage bending shape, the one end of communicating pipe is provided with the third connecting pipe, the shielded box and buffer tank intercommunication are passed to the one end that communicating pipe was kept away from to the third connecting pipe, the other end of communicating pipe is connected with the second connecting pipe, the winding is provided with the cooling tube on the outer wall of communicating pipe, the both ends of cooling tube are connected with main even pipe and vice even pipe respectively, the outside of shielded box is equipped with circulation tank, the one end of main even pipe is connected with circulation tank's play water end, the one end of vice even pipe is connected with circulation tank's the end of intaking.

Preferably, the outside of isolation box is equipped with the extruder, be provided with the exhaust hole on the outer wall of extruder, and exhaust hole and second connecting pipe intercommunication.

Preferably, a water pump is arranged in the circulating water tank, and the outlet end of the water pump is connected with one end of the main connecting pipe.

Preferably, the joints of the first connecting pipe, the second connecting pipe and the third connecting pipe with the isolation box are provided with sealing rings.

Preferably, the heat dissipation mechanism is located between the buffer tank and the extruder.

Preferably, the vacuum pump is a water ring vacuum pump.

(III) advantageous effects

The embodiment of the utility model provides a two vacuum pumping systems of reclaimed materials possesses following beneficial effect:

1. this is novel through being provided with two sets of vacuum pumps, through the mode of secondary evacuation, can separate out micromolecule material from the material, makes material particle surface smooth, and the particle size is even and closely knit, and processing is smooth and easy, in extrusion process, if one of them set of device damages, then production can be maintained to another set of device short time, has compensatied traditional single vacuum and has damaged the defect of shutting down the maintenance to the efficiency of production has been improved, the increase productivity.

2. This is novel through being provided with heat dissipation mechanism, can cool down the high temperature micro molecule material of taking out in the extruder, through starting the vacuum pump, make the micro molecule material in the extruder separate out from the material, then enter into the inside of communicating pipe through the second connecting pipe, because communicating pipe is the crooked shape setting of multistage, thereby can increase the flow stroke of micro molecule material in the shielded box inside, can be carried out abundant heat exchange by the cooling tube, and then make the micro molecule material fully cooled down, the micro molecule gas after the cooling, can be more abundant by active carbon adsorption in the buffer tank, adsorption effect is better.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the heat dissipation mechanism of the present invention;

fig. 3 is a schematic diagram of the structure of the communication pipe and the cooling pipe of the present invention.

In the figure: 1 buffer tank, 2 vacuum pumps, 3 first connecting pipes, 4 extruders, 5 exhaust holes, 6 second connecting pipes, 7 heat dissipation mechanisms, 8 isolation boxes, 9 communicating pipes, 10 third connecting pipes, 11 cooling pipes, 12 auxiliary connecting pipes, 13 circulating water tanks, 14 water pumps and 15 main connecting pipes.

Detailed Description

The invention will be further described with reference to the following figures 1-3 and examples:

a double-vacuum air pumping system for reclaimed materials comprises a buffer tank 1 and vacuum pumps 2, wherein the number of the vacuum pumps 2 is two, when one of the vacuum pumps 2 needs to be suspended for maintenance, the other vacuum pump can continue to work without delaying the production progress, the two vacuum pumps 2 are respectively provided with two ends of the same side of the buffer tank 1, the air inlet ends of the two vacuum pumps 2 are respectively provided with a first connecting pipe 3, one end of the first connecting pipe 3, which is far away from the vacuum pump 2, is communicated with the buffer tank 1, the buffer tank 1 is used for storing and purifying micromolecule substances and slight impurities pumped out through the connecting pipes, and two ends of the outer part of one side of the buffer tank 1 are respectively provided with a heat dissipation mechanism 7 which can cool the pumped micromolecule substances;

heat dissipation mechanism 7 includes separator box 8, separator box 8's inside is provided with communicating pipe 9, and communicating pipe 9 is multistage bending shape, can increase the mobile stroke of micromolecule material in separator box 8 inside, the one end of communicating pipe 9 is provided with third connecting pipe 10, the one end that communicating pipe 9 was kept away from to third connecting pipe 10 is passed separator box 8 and buffer tank 1 intercommunication, the other end of communicating pipe 9 is connected with second connecting pipe 6, the winding is provided with cooling tube 11 on communicating pipe 9's the outer wall, the both ends of cooling tube 11 are connected with main connecting pipe 15 and vice connecting pipe 12 respectively, separator box 8's outside is equipped with circulation tank 13, the one end of main connecting pipe 15 is connected with circulation tank 13's play water end, the one end of vice connecting pipe 12 is connected with circulation tank 13's the end of intaking.

In this embodiment, as shown in fig. 1, an extruder 4 is disposed outside the isolation box 8, an exhaust hole 5 is disposed on an outer wall of the extruder 4, the exhaust hole 5 is communicated with the second connection pipe 6, and the extruder 4 is a twin-screw extruder and is a main operation body for heating, melting, plasticizing, mixing, and then extruding through a die.

In this embodiment, as shown in fig. 1, a water pump 14 is disposed inside the circulation water tank 13, and an outlet end of the water pump 14 is connected to one end of a main connecting pipe 15, so that water inside the circulation water tank 13 can be pumped out.

In this embodiment, as shown in fig. 1-2, the joints of the first connecting pipe 3, the second connecting pipe 6, and the third connecting pipe 10 and the isolation box 8 are provided with sealing rings.

In this embodiment, as shown in fig. 1, the heat dissipation mechanism 7 is located between the buffer tank 1 and the extruder 4, so that the whole novel communication is convenient to use.

In this embodiment, as shown in fig. 1, the vacuum pump 2 is a water ring vacuum pump.

The utility model discloses a theory of operation: by arranging two groups of vacuum pumps 2, because the first connecting pipe 3 is communicated with the buffer tank 1, the second connecting pipe 6 is communicated with the third connecting pipe 10 through the connecting pipe 9, the third connecting pipe 10 is communicated with the buffer tank 1, the second connecting pipe 6 is communicated with the exhaust hole 5, the micromolecule substances can be separated from the materials in the extruder 4 through a secondary vacuumizing mode, the particle surfaces of the materials are smooth, the particle sizes are uniform and compact, the high-temperature micromolecule substances extracted from the extruder 4 can be cooled through arranging the heat dissipation mechanism 7, the micromolecule substances in the extruder 4 can be separated from the materials by starting the vacuum pumps 2 and then enter the inside of the connecting pipe 9 through the second connecting pipe 6, because the connecting pipe 9 is arranged in a multi-section bent shape, the flow stroke of the micromolecule substances in the isolation box 8 can be increased, can be carried out abundant heat exchange by cooling tube 11, and then make the micromolecule material fully cooled down, the micromolecule gas after the cooling can be more abundant by the active carbon adsorption in buffer tank 1.

The embodiment of the present invention discloses a preferred embodiment, but not limited thereto, and those skilled in the art can easily understand the spirit of the present invention according to the above embodiment, and make different extensions and changes, but do not depart from the spirit of the present invention, all of which are within the protection scope of the present invention.

Claims

1. The utility model provides a two vacuum pumping system of reclaimed materials, includes buffer tank (1), vacuum pump (2), the quantity of vacuum pump (2) is two, its characterized in that: the two vacuum pumps (2) are respectively provided with two ends of the same side of the buffer tank (1), the air inlet ends of the two vacuum pumps (2) are respectively provided with a first connecting pipe (3), one end of each first connecting pipe (3) far away from the vacuum pump (2) is communicated with the buffer tank (1), and two ends of the outer part of one side of the buffer tank (1) are respectively provided with a heat dissipation mechanism (7);

the heat dissipation mechanism (7) comprises an isolation box (8), a communicating pipe (9) is arranged inside the isolation box (8), the communicating pipe (9) is in a multi-section bent shape, one end of the communicating pipe (9) is provided with a third connecting pipe (10), one end of the third connecting pipe (10) far away from the communicating pipe (9) passes through the isolation box (8) to be communicated with the buffer tank (1), the other end of the communicating pipe (9) is connected with a second connecting pipe (6), a cooling pipe (11) is wound on the outer wall of the communicating pipe (9), the two ends of the cooling pipe (11) are respectively connected with a main connecting pipe (15) and an auxiliary connecting pipe (12), a circulating water tank (13) is arranged outside the isolation box (8), one end of the main connecting pipe (15) is connected with the water outlet end of the circulating water tank (13), one end of the auxiliary connecting pipe (12) is connected with the water inlet end of the circulating water tank (13).

2. A dual vacuum pumping system for reclaimed materials as in claim 1 wherein: the outside of shielded box (8) is equipped with extruder (4), be provided with exhaust hole (5) on the outer wall of extruder (4), and exhaust hole (5) and second connecting pipe (6) intercommunication.

3. A dual vacuum pumping system for reclaimed materials as in claim 1 wherein: a water pump (14) is arranged in the circulating water tank (13), and the outlet end of the water pump (14) is connected with one end of a main connecting pipe (15).

4. A dual vacuum pumping system for reclaimed materials as in claim 1 wherein: sealing rings are arranged at the joints of the first connecting pipe (3), the second connecting pipe (6), the third connecting pipe (10) and the isolation box (8).

5. A dual vacuum pumping system for reclaimed materials as in claim 1 wherein: the heat dissipation mechanism (7) is positioned between the buffer tank (1) and the extruder (4).

6. A dual vacuum pumping system for reclaimed materials as in claim 1 wherein: the vacuum pump (2) is a water ring vacuum pump.