阅读说明：本技术 一种挤出造粒机抽真空防堵塞装置 (vacuum pumping anti-blocking device of extrusion granulator ) 是由 曾广胜 江太君 陈一 孟聪 胡灿 尹琛 刘水长 于 2019-12-10 设计创作，主要内容包括：本发明一种挤出造粒机抽真空防堵塞装置,包括排气筒与真空桶；所述排气筒与挤出造粒机的机筒排气口相通；所述排气筒内设有将筒内空间分割的过滤网；所述排气筒与真空桶密封连接；本发明采用起隔离作用的过滤网对排气筒内的高填充木塑复合材料熔体物料进行过滤,方便水蒸气以及挥发成分的排出,整个装置操作方便,效率高,有效保证了高填充木塑复合材料的稳定挤出。(The vacuumizing anti-blocking device for the extrusion granulator comprises an exhaust cylinder and a vacuum barrel, wherein the exhaust cylinder is communicated with a cylinder exhaust port of the extrusion granulator, a filter screen for dividing the space in the barrel is arranged in the exhaust cylinder, and the exhaust cylinder is hermetically connected with the vacuum barrel.)

The vacuumizing anti-blocking device for the extrusion granulator is characterized by comprising an exhaust cylinder and a vacuum barrel, wherein the exhaust cylinder is communicated with an exhaust port of the barrel of the extrusion granulator, a filter screen for dividing the space in the barrel is arranged in the exhaust cylinder, and the exhaust cylinder is connected with the vacuum barrel in a sealing mode.

2. The vacuum extraction anti-clogging device of claim 1, wherein said screen divides the space within the barrel into two portions, wherein portion is in communication with said barrel vent and portion is in communication with said vacuum barrel.

3. The apparatus according to claim 1, wherein the vent cylinder is fixed to the barrel and completely covers the vent port of the barrel.

4. The vacuum pumping anti-clogging device as claimed in claim 1, wherein the top of the exhaust funnel is provided with a sealing cover plate fixedly connected with the filter screen.

5. The evacuated anti-clogging device according to claim 2, wherein the filter screen is arranged vertically.

6. The evacuated anti-clogging device according to claim 2, wherein the volume of the part of the space in the cylinder communicating with the barrel vent cylinder is larger than the volume of the space in the cylinder communicating with another parts of the vacuum barrel.

Technical Field

The invention relates to the technical field of material preparation, in particular to a vacuumizing anti-blocking device of an extrusion granulator.

Background

The wood-plastic composite material is a novel composite material which fully utilizes agricultural and forestry wastes and plastic reclaimed materials to prepare the wood-plastic composite material with the dual performance of plastic processing performance and wood texture, the content of plant fibers serving as main raw materials of the wood-plastic composite material is usually higher than 50%, the rheological behavior of a resin matrix is changed by adding high-content plant fibers, the viscosity is increased, the flowability is poor, and the processing is difficult, in addition, the water content of the plant fibers in is usually as high as 10%, the drying cost is too high through heating equipment and is usually used directly, in addition, the biomass fibers in also contain a large amount of organic volatile components, and the content of different biomass fibers is not .

Disclosure of Invention

The invention provides an vacuumizing anti-blocking device for an extrusion granulator, aiming at the problems that the flowability of a high-filling wood-plastic composite material is poor, and the vacuum pressure is unstable due to the fact that the natural air outlet is easy to cause the overflow of the material to block the air outlet in the extrusion granulation process.

In order to achieve the purpose, the application is realized by the following technical scheme:

vacuum pumping anti-blocking device for extrusion granulator comprises an exhaust cylinder and a vacuum barrel, wherein the exhaust cylinder is communicated with the exhaust port of the barrel of the extrusion granulator, a filter screen for dividing the space in the barrel is arranged in the exhaust cylinder, and the exhaust cylinder is connected with the vacuum barrel in a sealing manner.

, the screen divides the space in the barrel into two parts, wherein part is in communication with the barrel vent and part is in communication with the vacuum barrel.

, the vent tube is fixed to the barrel and completely covers the barrel vent.

, a sealing cover plate fixedly connected with the filter screen is arranged at the top of the exhaust funnel.

, the filter screen is vertically arranged.

, the volume of the space in the barrel in the portion communicating with the barrel exhaust barrel is greater than the volume of the space in the barrel in the other portion communicating with the vacuum barrel.

The invention has the beneficial effects that: according to the invention, the filter screen with an isolation function is adopted to filter the high-filling wood-plastic composite material melt material in the exhaust funnel, so that water vapor and volatile components can be conveniently discharged, the whole device is convenient to operate and high in efficiency, and stable extrusion of the high-filling wood-plastic composite material is effectively ensured.

Drawings

FIG. 1 is a schematic structural view of a vacuum pumping anti-clogging device of an extrusion granulator according to the present invention;

reference numerals: 1. a barrel; 2. an exhaust hole; 3. an exhaust funnel; 4. sealing the cover plate; 5. a filter screen; 6. a vent hole; 7. a breather pipe; 8. and (4) a vacuum barrel.

Detailed Description

In describing the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and the like are used in an illustrative and non-restrictive sense, and that the terms "center," "longitudinal," "transverse," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and the like are used in the illustrative and non-restrictive sense, and are used merely for convenience in describing the present invention and for the purpose of simplifying the description.

As shown in figure 1, the invention provides a vacuumizing anti-blocking device for an extrusion granulator, which comprises a machine barrel 1, an exhaust hole 2, an exhaust cylinder 3, a sealing cover plate 4, a filter screen 5, vent holes 6, vent pipes 7 and a vacuum barrel 8, wherein the exhaust cylinder 3 is fixed on the machine barrel 1 and completely covers the exhaust hole 2, the sealing cover plate 4 is arranged at the top of the exhaust cylinder 3, the filter screen 5 is fixedly connected with the sealing cover plate 4, the filter screen 5 is provided with a plurality of vent holes 6 and divides the exhaust cylinder 3 into two parts, parts isolate the exhaust hole 2, the upper parts of parts of the exhaust cylinder 3 are communicated with vent pipes 6, the vent pipes 7 are communicated with the vacuum barrel 8, and the volume of the inner space of the part of the cylinder communicated with the exhaust cylinder 3 of the machine barrel is larger than that of parts of the.

The working principle of the invention is that when the melt of the highly filled wood-plastic composite material passes through the exhaust port, the melt material is taken out under the high pressure action of the internal water vapor and volatile components and enters the side separated by filtration in the exhaust funnel 3, the water vapor and the volatile components can pass through the vent holes of the filter screen 4 and enter the vacuum barrel 8 through the vent pipe 7 under the vacuum action, so that the water and the volatile components are discharged from the surface, the blockage of the melt material on the vent pipe 7 is reduced, and the vacuum effect is influenced.

It should be understood that the above examples are only for clearly illustrating the technical solutions of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.