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Screw presser

A screw press, press technology, applied in digester, textile and papermaking, fiber raw material processing and other directions, can solve the problems of poor discharge end blocking, pressure back injection, leakage and so on

Inactive Publication Date: 2019-01-18
SHENZHEN DEWEI INTELLIGENT MFG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the defect that the traditional press in the prior art cannot use the pressure of the feed (pulp) to dehydrate the pulp simply by using the extrusion force of the pitch-variable screw; If the discharge end of the press is not tightly sealed, it will cause problems of pressure back spray and leakage; the third is to stabilize the discharge concentration

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A kind of screw press described in this embodiment is as figure 1 , figure 2 As shown, it includes a feed port 1, a discharge port 2, a screw shaft 3, and a filtrate plate 4. It is characterized in that it is also provided with a discharge rotor 5 that is coaxial with the screw shaft 3 and can move axially, and an axial thrust pressure device 6 directly connected with the discharge rotor 5; between the discharge rotor 5 and the screw shaft 3 Also provided is a clutch device 7 that can realize coupling and disengagement between the screw shaft 3 and the discharge rotor 5 .

Embodiment 2

[0023] In the screw press described in this embodiment, the clutch device 7 provided between the screw shaft 3 and the discharge rotor 5 to enable coupling and disengagement between the screw shaft 3 and the discharge rotor 5 is a screw shaft 3 and discharge rotor 5 each have at least one tooth meshing.

Embodiment 3

[0025] In the screw press described in this embodiment, a clutch device 7 is provided between the screw shaft 3 and the discharge rotor 5 to enable coupling and disengagement between the screw shaft 3 and the discharge rotor 5. At least one meshing tooth 9 or 10 of the meshing tooth 9 on the shaft 3 and the meshing tooth 10 on the discharge rotor 5 is initially coupled or finally disengaged from the coupling part 11 is a triangular structure.

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PUM

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Abstract

The invention comprises a screw presser. The presser comprises a feed port, a discharge port, a screw shaft, a filtrate plate, a discharge rotor coaxial with the screw shaft and axially movable and anaxial thrust device directly connected with the discharge rotor; a clutch device is also arranged between the discharge rotor and the screw shaft for achieving coupling and disengaging between the screw shaft and the discharge rotor. The presser can solve the defects in the prior art that a conventional presser cannot use a feeding pressure and only uses a pressing force of a variable pitch screwto dehydrate slurry, solve the problem that if an existing discharge end of the presser with a pressure is not tightly sealed, pressure back spray and leakage are caused, and stabilize the dischargeconcentration.

Description

technical field [0001] The invention belongs to the field of pulping and papermaking machinery, and in particular relates to a screw press. Background technique [0002] The feeding end of the traditional screw press is connected to the atmosphere, that is, there is no pressure at the feeding end. When there is pressure at the feed end, a high-level box needs to be installed, and the pulp can only enter the feed end of the screw press after eliminating the pressure of the pulp through the high-level box to ensure the normal operation of the screw press. The first disadvantage is that the process is complicated and it is difficult to realize automatic control, and the second is that it is impossible to use the feed head to squeeze the slurry, which wastes energy. [0003] Traditional screw presses with pressure at the discharge end, such as pressure screeners with screw slag discharge devices, feed plug screws for continuous cooking pots (device), etc., all have pressure at ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D21D5/06D21C7/06
CPCD21C7/06D21D5/06
Inventor 冯杉李昊
Owner SHENZHEN DEWEI INTELLIGENT MFG TECH CO LTD