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Non-abrasion extrusion and grinding slurry pressure generation device and method

A technology of extrusion grinding and generating device, applied in grain processing and other directions, can solve the problems of large maintenance workload, cost reduction, short life and other problems, and achieve the effects of increasing life, improving product quality and reducing production costs.

Active Publication Date: 2012-11-07
SHANGHAI UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a non-wearing extrusion grinding slurry pressure generating device and method that can completely isolate the pressure transmission medium and the slurry in order to overcome the defects existing in the existing extrusion grinding equipment. The slurry dynamic seal has a short service life and a large maintenance workload, so that the service life of the device is significantly longer, the cost is reduced, and the working performance is more stable

Method used

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  • Non-abrasion extrusion and grinding slurry pressure generation device and method
  • Non-abrasion extrusion and grinding slurry pressure generation device and method
  • Non-abrasion extrusion and grinding slurry pressure generation device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Such as figure 1 As shown, the non-abrasive extrusion grinding slurry pressure generating device includes a transfer medium pump station 1 and a slurry pump station 24, which is characterized in that: the medium pump station 1 and the slurry pump station 24 are respectively connected to a material The upper and lower ports of the tank 25; the material tank 25 is equipped with a bag-shaped film 10 to separate the inner cavity of the material tank 25 into two bag-shaped film outer chambers 8 and bag-shaped film inner chambers that are mutually isolated and can be converted to each other. 11. The bag-shaped film outer cavity 8 and the bag-shaped film inner cavity 11 are respectively connected to the upper and lower ports of the material tank 25 .

Embodiment 2

[0024] This embodiment is basically the same as Embodiment 1, and the special features are as follows:

[0025] The structure of the material tank 25 is that the upper end of a housing 9 is fixedly connected to a material tank upper end plate 7, and the lower end is fixedly connected to a material tank lower end plate 16, and the upper end plate 7 has an upper outlet screwed to a straight-through joint 5. The upper end of the straight-through joint 5 is screwed to a transfer medium pipeline 3 connected to the transfer medium pumping station 1 through a nut; the bag-shaped membrane 10 is fixedly connected to the lower end plate 16 of the tank at the casing 9 It is preset in the casing 9 before, and the bag-shaped film 10 is molded together with a bag-shaped film base 13 to form the outlet of the bag-shaped film 10. The bag-shaped film base 13 passes through an "O"-shaped sealing ring 14 and a lock nut 15 Sealed and fixed on the inner hole of the lower end plate 16 of the materi...

Embodiment 3

[0028] This non-abrasive and pressurized grinding slurry pressure generation method adopts the above-mentioned device to work as follows:

[0029] 1. System feeding

[0030] Close the shut-off valve 20, open the shut-off valve 21, and start the slurry pumping station 24 to work. The slurry is injected into the pocket-shaped membrane cavity 11 through the shut-off valve 21, the tee 19, the slurry pipeline 18, and the bag-shaped membrane fixing seat 13. At this time, the transfer medium in the material tank 9 is pressed out from the outer chamber 8 of the bag-shaped membrane, and is discharged back to the transfer medium pumping station 1 through the straight-through joint 5 , the transfer medium pipeline 3 and the flow meter 2 . When the slurry in the material tank 9 is filled up, the flow meter 2 issues an instruction, the slurry pump station stops running, and the shut-off valve 20 is closed, and the feeding of the material tank 9 is completed.

[0031] 2. System boost work ...

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PUM

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Abstract

The invention relates to a non-abrasion extrusion and grinding slurry pressure generation device and a non-abrasion extrusion and grinding slurry pressure generation method. The device comprises a material tank; a baggy film is arranged in the material tank and divides the space in the tank into a film inner cavity and a film outer cavity of which the space can be interchanged; a material storagetank is vertically arranged; the film outer cavity is connected with a transfer medium pump station through a transfer medium pipeline and a flow meter on the upper part of the tank to form a transfer medium passage; and the film inner cavity is connected with a stop valve, a slurry pump and a grinding working machine through a slurry pipeline and a tee joint on the bottom of the tank to form a slurry passage. The spaces of the film inner cavity and the film outer cavity are converted so as to alternately finish the charging of the material tank and the generation of the slurry pressure by using the dual functions of the slurry and transfer medium system pressure and slurry gravity and horizontally opening and flattening a cylindrical baggy film. In the working process, the relative friction between every two contacted surfaces is avoided, so the transfer medium can transfer the slurry in a non-abrasion pressure transfer way and the service life of a slurry high-pressure generation device is prolonged obviously. Meanwhile, the flow meter records the flow information of the transfer medium passing in and out of the material tank, and sends an instruction to realize the timely switching of processing and material charging, so that the device can work more safely and reliably.

Description

technical field [0001] The invention relates to a wear-free extrusion grinding slurry pressure generating device and method, which can be widely used in various fields of inner hole extrusion grinding, equipment bottom treatment, plate cutting and the like. Background technique [0002] Extrusion grinding slurry (hereinafter referred to as slurry) is the grinding medium used in extrusion grinding equipment. A certain pressure and speed are obtained through a high-pressure generating device, thereby forming a certain grinding capacity and achieving the purpose of grinding the surface of the equipment. However, due to the high hardness and sharp surface of the extrusion abrasive slurry, high requirements are placed on the design and manufacture of the pressure generating device. At present, the pressure generating devices of extrusion grinding equipment known at home and abroad mainly include the following types: [0003] 1. The method of increasing the pressure of the slurry...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B02C23/00
Inventor 刘玥刘林生蔡红霞柏余杰俞涛徐翀
Owner SHANGHAI UNIV