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Foundry self-hardening sand recycling system process

A regeneration system and no-bake sand technology, applied in manufacturing tools, casting molding equipment, metal processing equipment, etc., can solve the problems of waste of resources for one-time use of molding sand, environmental pollution, high production costs, etc., and achieve production cost saving and operation control The effect of convenience and simple process

Active Publication Date: 2013-01-16
ANHUI CHENGUANG HIGH WEAR RESISTANCE TECH CO LTD
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  • Abstract
  • Description
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Problems solved by technology

Resin sand + curing agent binder, the main chemical components are urea, methanol, sugar alcohol (CH 2 OH) and other organic or inorganic chemical raw materials, the residues of these chemical binders adsorbed on the sand will cause great environmental pollution to the soil, and the one-time use of molding sand is also a great waste of resources, and the production cost high

Method used

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  • Foundry self-hardening sand recycling system process

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Embodiment Construction

[0017] Refer to the attached figure, the recovery and recycling system process of no-bake sand for foundry, the process includes, conveying system, crushing and screening magnetic separation system, vibration regeneration system, lifting system, primary dust removal system, centrifugal regeneration system, boiling cooling system, 2 Secondary dust removal system, sand storage system, dust removal system and electric control system.

[0018] The conveying system includes a belt conveyor, a magnetic separation head wheel, the belt conveyor transports sand, and a magnetic separation head wheel is set above the belt conveyor to remove iron-containing substances, and then enters the recycling machine.

[0019] The crushing and screening magnetic separation system includes a centrifugal regenerator, a crusher, a bucket elevator, a vibrating linear screen and a vibrating feeder. The old sand in the sand bucket is evenly fed to the crusher through the vibrating feeder. Crushing, primar...

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Abstract

The invention discloses a foundry self-hardening sand recycling system process, which comprises a delivery system, a crushing, screening and magnetic separation system, a vibrating regeneration system, a hoisting system, a primary dedusting system, a centrifugal regeneration system, a boiling cooling system, a secondary dedusting system, a sand storage system and an electric control system. The invention overcomes the defects of the prior art, waste sand is recycled, the production cost is saved, energy is saved, emission is reduced, environment is protected, and the pollution is avoided.

Description

technical field [0001] The invention relates to the technical field of production of no-bake sand for casting, and specifically belongs to a recycling system technology of no-bake sand for foundry. Background technique [0002] The waste sand produced by the traditional self-setting sand production line is disposable, and most of it is dumped and buried in the wilderness. Water glass (sodium silicate) is mostly used as the binder for casting self-setting sand. Resin + curing agent, etc. And the saponin contained in the waste sand is composed of (Na 2 o / SiO 2 ) is an aqueous solution of various compounds whose main components are. Resin sand + curing agent binder, the main chemical components are urea, methanol, sugar alcohol (CH 2 OH) and other organic or inorganic chemical raw materials, the residues of these chemical binders adsorbed on the sand will cause great environmental pollution to the soil, and the one-time use of molding sand is also a great waste of resource...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C5/00
Inventor 卜宗清
Owner ANHUI CHENGUANG HIGH WEAR RESISTANCE TECH CO LTD
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