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Forming method of non-planar polyurethane screen meshes

A technology of polyurethane sieve and forming method, which is applied in the field of forming non-planar polyurethane screen, which can solve the problems of low porosity, high water content of materials, and failure of mineral classification to meet the requirements, so as to achieve high porosity and increase sieve The effect of sub-area

Inactive Publication Date: 2014-05-07
安徽鑫诺矿业装备制造有限公司
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Problems solved by technology

[0002] The surface of the existing screen in my country is flat, the material flow speed is fast, the opening rate is low, the water content of the material is large during transportation, which affects the environment, the mineral classification does not meet the requirements, and the hole plugging phenomenon is serious

Method used

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  • Forming method of non-planar polyurethane screen meshes
  • Forming method of non-planar polyurethane screen meshes
  • Forming method of non-planar polyurethane screen meshes

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Embodiment Construction

[0016] Referring to the accompanying drawings, a method for forming a non-planar polyurethane screen 1 includes the following steps:

[0017] a. Select high-strength polyurethane material, heat it in an oven to 140°, and carry out dehumidification and dehumidification treatment. After the raw material is dried, it enters the mixer, and at the same time, nano-materials, fumed silica, and ultra-fine toner are added to form synthetic materials. ;

[0018] b. Secondary synthesis with 400-ton injection molding machine, built-in Tian-shaped skeleton, the temperature of the first stage is controlled at 203°, and the method of vacuuming is used to adjust the control of one stage to facilitate molding. The mold temperature of the second stage is controlled at 180°. The temperature of the three stages is 100°C, 185°C, and 180°C respectively; when demoulding, circulating water needs to be injected to keep the mold cavity shaped after the material enters.

[0019] c. After taking out the...

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Abstract

The invention discloses a forming method of non-planar polyurethane screen meshes. The forming method of non-planar polyurethane screen meshes comprises the operation steps of a, selecting high-tenacity polyurethane material, heating the high-tenacity polyurethane material to 140 DEG C, removing humidity, drying raw material and feeding the raw material into a material fixer, adding nanometer materials, gas-phase silicon dioxide and ultrafine ink powder to commonly mix and form a synthetic material. According to the forming method of the non-planar polyurethane screen meshes, the aperture ratio is increased by 50% on the original basis; an isosceles triangle is arranged; holes are formed in two oblique sides; compared with a normal plane screen, the aperture ratio is increased by 50%; apertures are formed in two oblique sides; due to the principle that the water flows through screen holes from top to bottom, high screening efficiency is achieved; good dewatering effect is achieved, so that the holes are not blocked.

Description

technical field [0001] The invention relates to the fields of dehydration of various mine tailings and classification of artificial sand, and specifically belongs to a forming method of a non-planar polyurethane screen. Background technique [0002] The surface of the existing screen in my country is flat, the material flow speed is fast, the opening rate is low, the water content of the material is large during transportation, which affects the environment, the mineral classification does not meet the requirements, and the hole plugging phenomenon is serious. Contents of the invention [0003] The purpose of the present invention is to provide a method for forming non-planar polyurethane screens, which increases the opening rate by 50% on the original basis, sets up an isosceles triangle, and has holes on both hypotenuses, half of the openings than normal flat screens. The porosity is based on the principle that the pore diameter is produced on the two hypotenuses, an...

Claims

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Application Information

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IPC IPC(8): B29C45/14B29C45/78B29B13/06B29K75/00B29L31/14
CPCB29C45/14336B29C45/78B29C2045/0096B29C2045/14442B29K2075/00B29L2031/14
Inventor 程尧程舜禹武京明王丽王磊王明利王巍
Owner 安徽鑫诺矿业装备制造有限公司
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