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Hot process regenerative apparatus for tectorial sand using for casting

A technology of thermal regeneration and coated sand, which is applied to casting molding equipment, manufacturing tools, lighting and heating equipment, etc., can solve the problems of high cost, high cost of use, high energy consumption, etc., and achieve convenient gas control and transportation, and environmental protection Energy-saving effect, the effect of reducing the cost of use

Inactive Publication Date: 2004-03-17
NINGGUO CITY WEAR RESISTANCE MATERIAL GENERAL FACTORY ANHUI PROV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the main technical defects of the boiling roasting type old sand regeneration device are complex structure and high cost. The market price of a set of thermal regeneration equipment with a processing capacity of 2 tons / hour is about 600,000 US dollars; with fuel oil or natural gas as the roasting heat source, Large energy consumption and high cost of use restrict the application and promotion of coated sand thermal regeneration equipment and technology

Method used

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  • Hot process regenerative apparatus for tectorial sand using for casting
  • Hot process regenerative apparatus for tectorial sand using for casting
  • Hot process regenerative apparatus for tectorial sand using for casting

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Experimental program
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Effect test

Embodiment

[0016] See figure 1 The device includes vibrating crusher 2, powerful magnetic separator 3, bucket elevator 4, secondary magnetic separator 5, intermediate bucket 6, screw feeder 7, preheater 8, fuel supply mechanism, fluidized roasting furnace 10. Cooling bed 11, bucket elevator 12 and recycled sand bucket 1. Wherein the fuel supply mechanism includes a low-pressure hot gas generator 9 and a secondary air blower. Depend on figure 2 It can be seen that the structure of the connection between the fluidized roaster 10 and the gas generator 9, that is, two gas burners 16 are asymmetrically installed on the furnace wall on the upper part of the fluidized roaster 10 boiling hood 17, and the ends of the gas burners pass through the gas pipe respectively. 13 and blast pipe 14 are connected with gasifier 9 and blower fan, and regulating valve 15 is installed on the gas pipe 13 and blast pipe 14 respectively.

[0017] The gas burner used in this device is a multi-stream type, the a...

Embodiment 2

[0023] Also can be installed 4 gas burners 16 on the furnace wall of fluidized roasting furnace 10 boiling hoods 17 tops. Other structures are the same as

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Abstract

The coated sand heating regeneration apparatus includes crushing mechanism, feeding mechanism, preheating mechanism, fuel supplying mechanism, fluidizing roast furnace, cooling discharge mechanism and sand storing bin. The fuel supplying mechanism includes one low pressure hot gas generating furnace and one secondary blast blower; and the fluidizing roast furnace has on its wall two multiple-flow gas-burning nozzles connected to the gas generating furnace and the blast blower via pipeline. With low pressure gas as heat source, the present invention has convenient gas control and conveyance, stable burning, obvious environment protecting and energy saving effect and low cost.

Description

Technical field [0001] The invention relates to a thermal method regenerating device for coated sand for casting, in particular to a regenerating device for coated sand using low-pressure gas as fuel. Background technique [0002] In recent years, resin sand molds have been widely used in the field of casting, and sand recycling technology and equipment have also been developed rapidly. With the continuous improvement of environmental protection legislation, the reduction of high-quality resources and the substantial increase in transportation costs, the recycling of old sand has become one of the important research topics of many foundry companies and foundry workers at home and abroad. Old sand regeneration is an important measure to save resources, reduce environmental pollution, reduce casting cost and improve casting quality. At present, there are two types of known old sand regeneration devices, one is mechanical old sand regeneration devices, such as mechanical impac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22C5/00F27B15/00
Inventor 陈宗明陈晓高杰陈双林
Owner NINGGUO CITY WEAR RESISTANCE MATERIAL GENERAL FACTORY ANHUI PROV
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