Screw extruder for plant straw dehydration

A screw extruder, plant straw technology, applied in the direction of presses, manufacturing tools, etc., can solve the problem of no extrusion dehydrator, etc., to achieve the effect of large detachment resistance, reduced friction area, and small dehydration resistance

Inactive Publication Date: 2019-06-21
包头国士鼎盛投资有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] At present, there is no applicable squeeze dehydrator in this field

Method used

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  • Screw extruder for plant straw dehydration
  • Screw extruder for plant straw dehydration
  • Screw extruder for plant straw dehydration

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Experimental program
Comparison scheme
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Embodiment Construction

[0036] Such as Figure 1-Figure 3 Shown are the front view, top view and right side view of the screw extruder used for plant straw dehydration provided by the present invention respectively. As can be seen from the figure, the screw extruder of the present invention includes: frame 1; The screw main shaft on the top and rotates relative to the frame 1; the driving device for driving the rotation of the screw main shaft; the screen cylinder 15 located on the frame 1 and covered outside the screw main shaft; installed on the frame 1 and covered outside the screen cylinder 15 The sealing cover 9; the feed port 2 and the discharge port 3 arranged at the two ends of the frame 1; wherein, the screw spindle includes: a feed straight line located below the feed port 2 of the seal cover 9 for adapting to large fluctuations in the amount of feed Shaft section 16; the conveying section 4 connected to the end of the feed straight shaft section 16 for extruding and conveying materials; th...

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Abstract

The invention discloses a screw extruder for dehydrating plant straw, which includes: a frame, a screw spindle, a driving device, a screen cylinder, a sealing cover, a feed port and a discharge port; wherein the screw spindle includes: located at the inlet The feed straight-axis section below the feed port is used to adapt to large fluctuations in feed volume; the conveyor section connected to the end of the feed straight-axis section is used to squeeze and transport materials; the conveyor section connected to the end is used to form a continuous material plug In order to improve the dryness of the discharged material, a part of the straight-axis section of the discharge is located above the discharge port; among them, the pitch of the spiral blades on the straight-axis section of the feed and the conveying section remains unchanged; among them, the discharge port is provided with a back The back pressure plate structure of the pressure plate. The screw extruder of the present invention is suitable for the pretreatment process of comprehensive utilization of plant straw to produce biomass fuel, and is suitable for feeding methods with large fluctuations. The dryness of the extruded straw material reaches 40-55%, and the operation is stable and non-clogging. , low power consumption.

Description

technical field [0001] The invention relates to the technical field of pretreatment for producing biomass fuel by comprehensive utilization of plant straws, in particular to a screw extruder for dehydrating plant straws. Background technique [0002] The screw extruder is a mechanical extrusion dehydration device. At present, all types of screw extruders basically use a spindle with variable diameter and pitch. The material passes through the spiral blades with variable pitch and the spiral spindle with variable diameter. The volume of the material system is compressed, and the fluid medium in it is discharged from the system through the screen to realize solid-liquid separation and 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] Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B30B9/14
CPCB30B9/121B30B9/14B30B9/18
Inventor 刘同林
Owner 包头国士鼎盛投资有限公司
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