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Screw extruder for dehydration of steam-exploded plant straw materials

A technology of screw extruder and plant straw, applied in the direction of presses, manufacturing tools, etc., can solve the problems of no steam explosion plant straw screw extruder, etc., and achieve the effects of small resistance, stable operation and reduced length.

Active Publication Date: 2019-06-21
内蒙古中能生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Up to now, there is no screw extruder suitable for dehydration of steam-exploded plant straw materials in this field.

Method used

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  • Screw extruder for dehydration of steam-exploded plant straw materials
  • Screw extruder for dehydration of steam-exploded plant straw materials
  • Screw extruder for dehydration of steam-exploded plant straw materials

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Embodiment Construction

[0036] The invention provides a screw extruder used for dehydration of steam-exploded plant straw materials to meet the dehydration requirements of steam-exploded materials in the technical field of comprehensive utilization of plant straws to produce biomass fuels, to adapt to the feeding mode with large fluctuations, and to make extrusion The dryness of steam explosion material reaches 40-65%, and the operation is stable, no blockage, and low power consumption.

[0037] In order to achieve the above purpose, if Figure 1-Figure 3 As shown, the screw extruder used for steam-exploded plant stalk material dehydration of the present invention comprises: frame 1; the screw main shaft that is installed on the frame 1 and rotates relative to frame 1; the driving device that drives the screw main shaft to rotate; The screen cylinder 16 on the frame 1 and covered outside the screw spindle; the sealing cover 9 installed on the frame 1 and covered outside the screen cylinder 16; the fe...

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Abstract

The invention discloses a screw extruder for dehydrating steam-exploded plant straw materials, which includes: a frame, a screw spindle, a driving device, a screen drum, a sealing cover, a feed port and a discharge port, wherein the screw spindle includes : The feed straight-axis section located below the feed port for increasing the feeding speed of steam-explosion materials; the compression section connected to the end of the feed straight-axis section for rapid compression of steam-explosion materials; the compression section connected to the end of the compression section A part of the discharge straight-axis section used to compress the volume of the steam explosion material to the minimum and form a continuous material plug is located above the discharge port; wherein, the feed straight-axis section, the compression section, and the discharge straight-axis section The pitch of the spiral blades gradually decreases. The screw extruder of the present invention has a simple structure, can meet the dehydration requirements of steam explosion materials in the technical field of comprehensive utilization of plant straw to produce biomass fuel, is suitable for feeding methods with large fluctuations, and the dryness of the extruded steam explosion materials can reach 40- 65%, with stable operation, no clogging and low power consumption.

Description

technical field [0001] The invention relates to the technical field of comprehensive utilization of plant straws to produce biomass fuels, in particular to a screw extruder used for dehydrating steam-exploded plant straw materials. Background technique [0002] The screw extruder is a mechanical extrusion dehydration device. The material passes through the variable-pitch screw blade and the variable-diameter screw shaft to gradually compress the volume of the material system, and the fluid medium in it is discharged from the system through the screen to achieve solid-liquid Separation to improve the dryness of the material. [0003] There are essential differences in the organizational structure and physical properties of various materials. During the screw extrusion dehydration process, the dehydration ability and dehydration mechanism are also completely different. [0004] The paper-making slurry treated at high temperature by chemicals, the solid part of the system, the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B30B9/14
CPCB30B9/121B30B9/14
Inventor 刘同林
Owner 内蒙古中能生物科技有限公司
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