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Tunnel mesh belt sintering furnace

A mesh-belt sintering and tunnel-type technology, applied in furnaces, furnace types, ceramic material production, etc., can solve problems affecting furnace temperature uniformity and cleanliness, affecting material sintering quality, heavy bricks, etc., to achieve quality Lightweight, small bulk density, and improved temperature uniformity

Inactive Publication Date: 2011-02-02
合肥高歌热处理应用技术有限公司
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Problems solved by technology

The traditional tunnel-type mesh belt sintering furnace currently used is made of heavy bricks in the furnace structure. The disadvantages are: the heat capacity of heavy bricks is small, the insulation effect is not good at high temperatures, and the energy consumption is large; The specific gravity is large, which is easy to cause the roof collapse and slag drop, which seriously affects the temperature uniformity and cleanliness of the furnace, thereby affecting the sintering quality of materials

Method used

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Embodiment Construction

[0008] Such as figure 1 , a tunnel-type mesh belt sintering furnace, including a gas system, a conveying system and an electrical control system, the main structure is composed of a furnace body frame 1, a furnace 2 and so on. Furnace body frame 1 is used to fix the entire furnace 2, gas path system and conveying system. There is a hanging board outside the furnace 2. The hanging boards are all independently electrostatically sprayed to prevent accidental damage to the operator due to high temperature and form a solid structure of the equipment. In terms of overall appearance, the upper cover of the furnace 2 adopts a concave-convex sealing pattern in structural design. The same kind of light ceramic fiber boards 3 are installed around and on the top of the furnace 2 as heat insulation and heat preservation materials. Corundum tubes 6 are installed on the upper and lower positions of the ceramic fiber boards 3 on both sides of the furnace 2. The corundum tubes 6 are spirally w...

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Abstract

The invention discloses a tunnel mesh belt sintering furnace, belongs to an industrial furnace, and in particular relates to the technical field of dehydrochlorination technology for silicon nitride, titanium nitride, aluminum nitride and other nano powder at 850 DEG C or below. The tunnel mesh belt sintering furnace is characterized in that: the periphery and the top of a hearth consist of ceramic fiber boards; the bottom is supported by light foamed bricks; an inner muff tube made of Cr25Ni20 heat-resistant stainless steel is arranged on the light foamed bricks; the hearth is communicated with five paths of process gas; each path is controlled by a float flow meter; a hearth opening cooling section is divided into two parts, namely a natural cooling section and a forced cooling section; the forced cooling adopts dipping bath type water cooling; and a unique limiting correction device is arranged on two sides of a transmission mesh belt of an equipment inlet platform and an equipment outlet platform. The tunnel mesh belt sintering furnace has the advantages of firm and stable structure, no roof fall, high temperature control accuracy, low energy consumption, clean hearth, uniform temperature, stable long-term work and the like, and is convenient and effective to operate,.

Description

technical field [0001] The invention belongs to an industrial furnace, in particular to the technical field of dehydrochlorination process for silicon nitride, titanium nitride, aluminum nitride and other nano-powders at 850°C. Background technique [0002] Tunnel mesh belt sintering furnace series equipment is mainly suitable for the dehydrochlorination process of silicon nitride, titanium nitride, aluminum nitride and other nano-powders. The traditional tunnel-type mesh belt sintering furnace currently used is made of heavy bricks in the furnace structure. The disadvantages are: the heat capacity of heavy bricks is small, the insulation effect is not good at high temperatures, and the energy consumption is large; The specific gravity is large, which is easy to cause the roof collapse and slag drop, which seriously affects the temperature uniformity and cleanliness of the furnace, thereby affecting the sintering quality of materials. Contents of the invention [0003] Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B9/12F27B9/30F27B9/04F27B9/36F27B9/34F27B9/40F27B9/06F27B9/24
CPCY02P40/60
Inventor 谭宏胜吕文强杜可栋赵凤
Owner 合肥高歌热处理应用技术有限公司
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