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Efficiently environment-friendly graphitization furnace cooling technology

A technology of graphitization furnace and cooling process, applied in inorganic chemistry, carbon compounds, chemical instruments and methods, etc., can solve problems such as unfavorable workshop environment control, difficulty in precise control, continuous waste, etc., to shorten the cooling time, production High efficiency and anti-pollution effect

Active Publication Date: 2014-09-17
SINOSTEEL NEW MATERIAL ZHEJIANG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method has many disadvantages: 1) It is difficult to operate the material grabbing process, it is difficult to accurately control, and it is easy to cause oxidation of the product; 2) After the material is grabbed, an independent cold material bin needs to be configured outside the furnace; 3) During the material grabbing and unloading process, there will be A large amount of dust is formed, which is not conducive to the environmental control of the workshop; 4) After the insulation material is placed in an external site, since the particle size distribution of the insulation material powder is 0~1mm, it is difficult to recycle all of it, resulting in continuous waste; 5) The material grabbing process requires Driving and personnel cooperate to complete the furnace body, and there are potential safety hazards

Method used

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  • Efficiently environment-friendly graphitization furnace cooling technology
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Examples

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Embodiment

[0046] The following is an embodiment of the cooling process for a 30t, ?680×720 isostatic pressed product in a certain furnace, as shown in Table 1.

[0047] Table 1. Cooling process corresponding to a certain product

[0048]

[0049] The cooling process is formulated according to the corresponding relationship between suction depth and cooling time, so that the cooling range of the product does not exceed 30°C / hour, so as to avoid product damage caused by excessive cooling; and when the product is exposed as the insulation material is sucked out, the product The temperature does not exceed 400°C to avoid being oxidized. Since the temperature of the graphitization furnace is higher and the temperature is lowered faster at the beginning of cooling, less material is required and the frequency of material absorption is low. As shown in Table 1, the frequency of material absorption on the first day is 4 times / day, and each time the material is absorbed The depth is 10mm; on ...

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Abstract

The invention provides an efficiently environment-friendly graphitization furnace cooling technology. The efficiently environment-friendly graphitization furnace cooling technology comprises the following specific steps of: step 1. increasing a material absorbing depth and a material absorbing frequency step by step by using a multifunctional traveling crane and taking time as a moving direction, and controlling the temperature reduction range of a product to be less than 30 DEGC / h, when the product is exposed, the surface temperature of the product is less than 400 DEG C; step2. screening a heat preservation material in a main storage bin of the multifunctional traveling crane; and step 3. carrying out dedusting on the screened granules. The multifunctional traveling crane provided by the invention is used for the graphitization furnace cooling technology and can independently complete the cooling process. Due to the adoption of the multifunctional traveling crane, the cooling time of the graphitization furnace is shortened, the working efficiency is improved, the production cost is reduced, and the environmental protection level of the graphitization furnace in the cooling process is increased.

Description

technical field [0001] The invention relates to a cooling process of a graphitization furnace, in particular to a process method for controlling the cooling process of a graphitization furnace by using a multifunctional crane. Background technique [0002] After the graphitization furnace is powered up to 2900°C, the heating process is completed and enters the cooling stage. In the production cycle of isostatic graphite products, the heating process generally takes 10 to 15 days, while the cooling process can last for about 30 days in order to avoid product damage caused by excessive cooling. The heating process is limited by the production requirements of product performance, and its adjustment space is small, while the cooling process needs to be strictly controlled at key process points, the shorter the process, the better, and there is a large room for flexible adjustment. [0003] During the heating process of graphitization power transmission, because graphitization r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01B31/04C01B32/205
Inventor 陈裕发俞天旭肖邵懿符勇高干明
Owner SINOSTEEL NEW MATERIAL ZHEJIANG
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