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Chrome sand sorter

A sorting machine and chrome sand technology, which is applied in foundry sand and foundry field, can solve the problems of general sorting effect, high price, bulky, etc., and achieve the effect of good sorting effect, high recovery rate, and scientific and reasonable structure

Active Publication Date: 2009-12-30
QINGDAO BAICHUAN TONGDA MACHINERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to reports, the main defects of foreign products are: first, they are huge and complex, second, they are expensive, and third, their selection effect is average

Method used

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  • Chrome sand sorter
  • Chrome sand sorter
  • Chrome sand sorter

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Embodiment Construction

[0017] attached figure 1 , 2 , 3, and 4 provide a specific embodiment of the present invention, and the structure of the selection machine will be described in more detail below in conjunction with the above-mentioned accompanying drawings. The chrome sand concentrator consists of three parts: air blowing device, sorting sieve connected through air duct, and sorting sieve with vibrating mechanism. The sorting screen includes a screen box 7, a screen 8 is fixed in the middle, and an air distribution chamber 9 is located under the screen. The bottom of the air distribution chamber 9 is provided with an air inlet hole connected to the air inlet hose 6, and the air inlet hose 6 and the other The other end is connected to the wind storage cabinet 5, and the wind storage cabinet is connected to the blast device through the air delivery pipe 4. The sieve box 7 looks like a triangle when viewed from above, and its front end is provided with a feed port 26, and the feed port is provi...

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PUM

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Abstract

A chrome sand sorter relates to fine sorting recovery equipment of chrome sand for foundry. The chrome sand sorter comprises a blowing unit, a separating screen and a vibration mechanism, the separating screen comprises a screen box, screen meshes and an air distribution chamber, one side of the screen mesh is provided with a long strip-shaped blanking hole, and the air distribution chamber is connected with an air storage cabinet and the blowing unit by a hose. Various stainless steel sintering screen meshes with certain rigidity and strength are adopted in the chrome sand sorter, which meets requirements of a sorting process including boiling and jumping; an air filter is adopted in the blowing unit for filtering intake air and then blowing the intake air to the screen meshes, which effectively prevents dust-laden air from blocking the screen meshes; the air storage cabinet and the air distribution chamber can ensure uniformity and stability of wind pressure; an adjustable vibration frame can be adjusted longitudinally and horizontally, thus being capable of realizing arbitrary tilting of the screen meshes; a compound eccentric gear can cause the oscillation amplitude of the vibration frame to be adjustable for a plurality of levels; and a stepless speed changing motor causes the vibration frequency of the vibration frame to be adjustable. A sorting principle of combining wind power and vibration is adopted in the chrome sand sorter based on different specific weights of materials, thus the chrome sand sorter has the advantages of scientific and reasonable structure, good sorting effect and recovery ratio up to more than 95%.

Description

Technical field: [0001] The present invention relates to foundry technology, mainly relates to foundry sand, particularly relates to the selection and recycling equipment of used foundry chrome sand. Background technique: [0002] When casting large iron castings or steel castings, chrome sand is often used to prevent the penetration of liquid metal and improve the surface quality of castings. Chrome sand is a high-quality high-temperature-resistant material, the main component of which is Cr2O3. It is a high-quality neutral molding material with a small expansion coefficient and high thermal conductivity. , does not chemically react with other metal oxides, and has the characteristics of solid-phase burning orange, which can promote the sequential solidification of castings, resist the long-term thermal action of high-temperature molten metal, resist the penetration of high-temperature molten metal, and avoid sticking on the surface of castings. Sand and crack defects ensu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C5/06
Inventor 孙学忠
Owner QINGDAO BAICHUAN TONGDA MACHINERY CO LTD
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