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Efficient energy-saving screw and extruder

An energy-saving extruder technology, applied in the field of extruders, can solve the problems of high temperature in the compression section and metering section, high shear heat and friction heat, etc., and achieve torque reduction, temperature balance, and fast feeding and stable effect

Pending Publication Date: 2021-07-20
安庆市九羊电工机械设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional single-screw extruder has the following defects: when the screw speed is high, due to the high shear heat and friction heat, the temperature of the compression section and the metering section is too high to be controlled

Method used

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  • Efficient energy-saving screw and extruder
  • Efficient energy-saving screw and extruder
  • Efficient energy-saving screw and extruder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] see Figure 1-2 : A high-efficiency and energy-saving screw rod, comprising a first screw body 1, the inside of the first screw body 1 is set as a hollow structure, and an easily vaporized substance is arranged in the hollow structure for thermal cycle.

[0033] In this embodiment, under the condition that the strength of the screw is sufficient, the screw is set as a hollow structure, and an appropriate amount of easy-to-vaporize substance is added in the airtight hollow structure. When the screw is working, it is vaporized when it is heated, and the heat from all parts of the screw is conducted. It is conducive to the uniform heat of the screw, and in addition, it condenses when it is cold, so as to circulate, so as to achieve the purpose of heat circulation.

[0034] In a specific example, the hollow structure includes the first tapered hole hollow shaft structure 14 of the first screw compression section 12 and the first screw homogenization section 13 and the first...

Embodiment 2

[0042] see image 3: a high-efficiency energy-saving screw, comprising a second screw body 2, the inside of the second screw body 2 is set as a hollow structure, and the hollow structure includes a second screw compression section 22 and a second screw homogenization section 23 The conical hole hollow shaft structure 24 and the second cylindrical hole hollow shaft structure 25 of the second screw feeding section 21 , the second conical hole hollow shaft structure 24 communicates with the second cylindrical hole hollow shaft structure 25 and is not sealed.

[0043] In this embodiment, on the premise of ensuring the strength of the screw, the hollow shaft structure of the second tapered hole communicates with the hollow shaft structure of the second cylindrical hole. When the screw is working, it generates internal circulation with the external air, so that each section of the second screw body The temperature is more controllable.

[0044] Specifically, the second screw body 2...

Embodiment 3

[0049] For this purpose, see image 3 : The present embodiment also provides an extruder, which includes the above-mentioned high-efficiency and energy-saving screw.

[0050] The extruder of this embodiment has the same advantages as the above-mentioned high-efficiency and energy-saving screw compared with the prior art, and will not be repeated here.

[0051] Specifically, the extruder is sequentially provided with a feeding device 3, a screw feeding section in the barrel 4, a screw compression section, a screw homogenizing section and a machine head 5 along the material input direction, the screw feeding section, The screw compression section and the screw homogenization section are each equipped with a heating and cooling mechanism 6 and a temperature monitoring device 7 .

[0052] The screw feeding section, the screw compression section, and the screw homogenizing section of this embodiment can all monitor the temperature through the corresponding temperature monitoring d...

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Abstract

The invention provides an efficient energy-saving screw, which comprises a first screw body, the interior of the first screw body is of a hollow structure, and an easy-to-vaporize substance is arranged in the hollow structure. The invention also provides an extruder. Under the condition that the strength of the screw is enough, the interior of the screw is designed to be of a hollow structure, specifically a taper hole hollow shaft structure, and the weight of the screw is reduced, so that the torque force of a screw cantilever beam structure is reduced, the friction loss between the top of the screw and the inner side wall of a machine barrel is reduced, and the load of a dragging motor is reduced; and besides, a proper amount of easy-to-vaporize substances are added into holes, so that the substances are vaporized when heated and condensed when cooled in the closed conical holes for circulation, the purpose of heat circulation is achieved, and the temperature of a compression section and the temperature of a homogenization section of the screw are more balanced. According to the efficient energy-saving screw provided by the invention, the original linear auxiliary screw flight of a screw separation groove is designed into an arc-shaped structure, shearing heat and friction heat of a rubber material in the production process are reduced, and the situation that the heat is too high and difficult to control is prevented.

Description

technical field [0001] The invention relates to the technical field of extruders, in particular to a high-efficiency and energy-saving screw and an extruder. Background technique [0002] The screw extruder relies on the pressure and shear force generated by the rotation of the screw, so that the material can be fully plasticized and evenly mixed, and then formed through the die. The traditional single-screw extruder has the following defects: when the screw speed is high, due to the high shear heat and friction heat, the temperature of the compression section and the metering section is too high and cannot be controlled. Contents of the invention [0003] In order to solve the above problems, the present invention aims to propose a high-efficiency and energy-saving screw and extruder. By designing the inside of the screw with a hollow shaft structure with a tapered hole, an appropriate amount of easy-to-vaporize substances can be added in the hole, allowing it to In the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C48/505B29C48/80B29C48/82B29C48/92B29C48/30
CPCB29C48/505B29C48/802B29C48/82B29C48/92B29C48/30
Inventor 黄出明梁大明
Owner 安庆市九羊电工机械设备有限公司
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