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An energy-saving indirect cooling foundry sand rapid roasting regeneration system

A regeneration system and technology of foundry sand, applied in foundry molding equipment, manufacturing tools, machinery for cleaning/processing of mold materials, etc., can solve problems such as storage difficulties, energy waste, etc. The effect of mutual movement

Active Publication Date: 2017-09-29
山东鑫刚新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problems of energy waste and difficulty in transportation and storage in the existing thermal regeneration process of foundry waste sand, the present invention provides an energy-saving indirect cooling type rapid roasting regeneration system for foundry sand, which can fully peel off the organic matter on the surface of foundry waste sand , realize the regeneration process of molding sand, and at the same time, make full use of the energy in the regeneration process, improve the working efficiency of the regeneration equipment, and avoid energy waste

Method used

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  • An energy-saving indirect cooling foundry sand rapid roasting regeneration system
  • An energy-saving indirect cooling foundry sand rapid roasting regeneration system
  • An energy-saving indirect cooling foundry sand rapid roasting regeneration system

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Effect test

Embodiment 1

[0046] Such as figure 1 As shown, the energy-saving indirect cooling foundry sand rapid roasting regeneration system includes a preheating unit, a roasting regeneration unit and a high-temperature flue gas treatment unit.

[0047] Such as figure 2 As shown, the preheating unit includes a first heat exchanger, and the first heat exchanger adopts a superconducting heat exchanger 1, and the superconducting heat exchanger 1 includes a box body 11 and a superconducting heat exchange tube 15 . A partition 12 is arranged inside the box body 11 , and the partition plate 12 divides the space in the box body 11 into two parts, one part is a cold sand chamber 13 and the other part is a hot air chamber 14 . The partition 12 is provided with a superconducting heat exchange tube 15, and the superconducting heat exchange tube 15 is installed on the partition 12 with a certain inclination, wherein the lower end is located in the cold sand chamber 13, and the higher end is located in the co...

Embodiment 2

[0058] Such as Figure 12 As shown, the superconducting heat exchanger adopts a double-layer box, including an inner box and an outer box. Both the inner box and the outer box have a directional structure, and the inner box and the outer box The space formed between is the hot air chamber 14, the space inside the inner box is the cold sand chamber 13, the superconducting heat exchange tube 15 is installed on the inner box, and one end of the superconducting heat exchange tube 15 Located in the cold sand chamber 13, the other end is located in the hot air chamber 14. All the other structures are the same as in Embodiment 1.

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Abstract

A fast roasting regeneration system of energy-saving type indirectly-cooled foundry sand comprises a preheating unit, a roasting regeneration unit and a high-temperature flue gas treatment unit. The roasting regeneration unit comprises a furnace. A distribution chamber, a combustion chamber, a primary heat exchange chamber, a secondary heat exchange chamber and a sand collection chamber are sequentially arranged in the furnace from top to bottom. A second feeding opening and a main flue gas exhaust pipeline are arranged at the top of the furnace. A second discharging opening is formed in the bottom of the furnace. A first feeding opening in the preheating unit is connected with an automatic used sand feeding device, and a first discharging opening is connected with the second feeding opening. A first flue gas inlet in the high-temperature flue gas treatment unit is connected with the main flue gas exhaust pipeline, a first flue gas outlet is connected with a second flue gas inlet, a first air inlet is connected with a first air blower, and a first air outlet is connected with the combustion chamber and the primary heat exchange chamber of the roasting regeneration unit. In the process of achieving regeneration of the foundry sand, energy in the regeneration process is fully utilized, the work efficiency of regeneration equipment is improved, and energy waste is avoided.

Description

technical field [0001] The invention relates to a recycling system for foundry waste sand, in particular to a high-temperature rapid roasting regeneration system for energy-saving foundry sand, which belongs to the technical field of foundry equipment. Background technique [0002] With the continuous improvement of the manufacturing level of my country's machinery industry, the requirements for the surface quality of castings in the foundry industry are getting higher and higher, and the proportion of new molding sand such as coated sand and resin sand is getting higher and higher. After the product is cast, the above-mentioned molding sand becomes foundry waste sand. The recycling of foundry waste sand can enable foundry enterprises to effectively reduce energy consumption, save molding sand resources, and fundamentally prevent the environmental pollution of waste molding sand. [0003] The key technical issue for the recycling of foundry waste sand is to realize the effe...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22C5/00
CPCB22C5/00
Inventor 赵友谊曾华生王晋槐陈云建
Owner 山东鑫刚新材料有限公司