Reciprocating-type single screw pin extruder with one-cycle rotation for three times reciprocating and high efficiency mixing element

A reciprocating single-screw technology, applied in the field of new reciprocating single-screw pin extruder and its high-efficiency mixing components, can solve the problems of no industrialization

Inactive Publication Date: 2015-05-06
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 1972, in order to increase the output of the reciprocating single-screw extruder, Fritz Ronner [US3841611] invented a reciprocating single-screw extruder with eight rows of pins on the barrel. Models are not industrialized

Method used

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  • Reciprocating-type single screw pin extruder with one-cycle rotation for three times reciprocating and high efficiency mixing element
  • Reciprocating-type single screw pin extruder with one-cycle rotation for three times reciprocating and high efficiency mixing element
  • Reciprocating-type single screw pin extruder with one-cycle rotation for three times reciprocating and high efficiency mixing element

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] The movement of screw rod of the present invention can be by such as Figure 7 shown in the principle to drive. Shaft 1 is the input shaft, the gear 3 on it drives the gear 4 on the intermediate shaft 2, the gear 5 on the shaft 2 drives the gear 6 on the shaft 7, the bevel gear 8 on the output shaft 7 is connected with the gear 6, and the driving shaft 7 rotates , The shaft 7 is connected with the gear 6 and the bevel gear 8 by a sliding key, and the gear 6 and the bevel gear 8 can slide axially on the shaft 7 relative to each other. The vertical shaft 11 and the vertical shaft 12 are arranged symmetrically up and down, on which bevel gears 9 and 10 with the same geometric shape are installed and meshed with the bevel gear 8 at the same time, and the bevel gear 8 drives the bevel gears 9 and 10 to rotate, vertical Cranks 13 and 14 are arranged on the shaft 11 and the vertical shaft 12, respectively drive the movement of the connecting rod 15 and the connecting rod 16, ...

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Abstract

The invention relates to a reciprocating-type single screw pin extruder with one-cycle rotation for three times reciprocating and a high efficiency mixing element. The extruder screw employs a unique drive unit, when the screw enables one-cycle rotation, the screw performs three-time reciprocating motion. According to the invention, 12 rows of pins are arranged on inner wall of a machine cylinder, the screw flights are regularly interrupted, and the screw flights and the pins perform relative motion for stirring and cleaning screw flights. The rotation direction of the screw flights can employ dextrorotation or levorgyration according to practical condition, when dextrorotation screw flight is changed to levorgyration screw flight, the voltage buildup capability is increased. Through the improvement of a traditional reciprocating-type single screw pin extruder, shunting frequency of fluid in an element flow field can be increased, distribution mixing performance of the mixing element can be increased, a high shear area of the material flow field in the mixing element can be increased, and the dispersion-mixing performance of the mixing element can be increased.

Description

technical field [0001] The invention relates to a novel reciprocating single-screw pin extruder and its high-efficiency mixing components. The screw of the extruder adopts a unique driving device. The screw reciprocates three times for one rotation. There are 12 rows of pins installed on the inner wall of the barrel. The role of the edge. Through the improvement of the traditional reciprocating single-screw pin extruder, the present invention can not only increase the number of fluid splits in the element flow field, improve the distribution and mixing performance of the mixing element, but also increase the high shear of the material flow field in the mixing element. Cutting area, improve the dispersive mixing performance of the mixing element. Background technique [0002] In 1945, German H. List developed a reciprocating single-screw pin extruder. In 1951, the Swiss patent [CH278575] proposed a reciprocating single-screw pin extruder. Three rows of pins are installed o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C47/64B29C47/38B29C48/67B29C48/395
CPCB29C48/45B29C48/67
Inventor 毕超刘倩楠李翱
Owner BEIJING UNIV OF CHEM TECH
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