Screw extruder for plant straw dehydration

A screw extruder and plant straw technology, applied in the direction of presses, manufacturing tools, etc., can solve the problems of no extrusion dehydrator, etc., and achieve the effect of large detachment resistance, increased radial thickness, and stable operation

Inactive Publication Date: 2017-05-17
包头国士鼎盛投资有限公司
View PDF19 Cites 4 Cited by
  • 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Screw extruder for plant straw dehydration
  • Screw extruder for plant straw dehydration
  • Screw extruder for plant straw dehydration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] like 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; the d...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a screw extruder for plant straw dehydration. The screw extruder comprises a rack, a spiral main shaft, a driving device, a screen barrel, a seal cover, a feeding opening and a discharging opening. The spiral main shaft comprises a feeding straight shaft section, a conveying section and a discharging straight shaft section, wherein the feeding straight shaft section is located below the feeding opening and used for being adapted to the situation when the feeding amount is high in fluctuation; the conveying section is connected with the tail end of the feeding straight shaft section and used for extruding conveyed materials; and the discharging straight shaft section is connected with the tail end of the conveying section and used for forming continuous material stuffing so that dryness of discharged materials can be improved, and part of the discharging straight shaft section is located above the discharging opening. Spiral vanes on the feeding straight shaft section and spiral vanes on the conveying section are unchanged in screw pitch. A backpressure disc structure provided with a backpressure disc is arranged at the discharging opening. The screw extruder is applicable to the pretreatment process for comprehensively utilizing plant straw for producing biomass fuel and suitable for the feeding mode large in fluctuation quantity; dryness of the extruded straw materials reaches 40-55%; and the screw extruder is stable in operation, free of blocking and low in 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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): B30B9/14
CPCB30B9/121B30B9/14
Inventor 刘同林
Owner 包头国士鼎盛投资有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap