CN203269578U - Graphitization furnace - Google Patents

Abstract

The utility model provides a graphitization furnace. The furnace comprises a left graphite particle layer, a right graphite particle layer and a furnace core which is positioned at inner sides of the graphite particle layers, wherein front and rear edges of the inner side of the furnace core are provided with furnace walls, old insulating materials and new insulating materials sequentially from outside to inside; and a resistance material is filled between the new insulating materials at two sides; the old insulating materials are petroleum coke, and the new insulating materials are petroleum coke. The process of graphitizing a raw material can be accelerated because the petroleum coke serving as the insulating material has a better insulating effect, so that the graphitization degree of products can be higher, and the quality can be better. Furthermore, after the petroleum coke serving as the insulating material is used for several times continuously, the petroleum coke can be used as a high-quality side product carburant for export sales, so that the cost can be reduced.

Description

Graphitization Furnace

technical field

The utility model relates to a graphitization furnace, in particular to a graphitization furnace which adopts petroleum coke as heat preservation material.

Background technique

Graphitization furnace is mainly used for high temperature treatment such as graphite powder purification. Its service temperature is as high as 2800°C. High production efficiency, energy saving and power saving. At present, the insulation materials used in known graphitization furnaces all use carbon black, which is expensive, small in particle size, difficult to separate after treatment, and has a large loss after each graphitization, so the cost of graphitization is relatively high. high. Therefore prior art still needs to improve.

Contents of the invention

The utility model provides a graphitization furnace to solve the technical problems in the background technology.

For this reason, a kind of graphitization furnace of the present utility model, wherein, comprise the graphite particle layer on left and right sides and the furnace core that is positioned at graphite particle layer inner side, the front and rear sides of described furnace core inner side are all provided with furnace successively from outside to inside. The wall, the old insulation material and the new insulation material, and the resistance material is filled between the new insulation materials on both sides.

The graphitization furnace, wherein the old insulation material is petroleum coke.

The graphitization furnace, wherein the new insulation material is petroleum coke.

After the utility model adopts petroleum coke as heat preservation material, it is easy to separate and has better heat preservation effect, and the price of petroleum coke is low. After graphitization, it can be used as a high-quality by-product carburizer for export, thereby greatly reducing production costs and achieving beneficial effects. technical effect.

Description of drawings

Fig. 1 is a schematic top view of the structure of the utility model.

Explanation of reference signs

Graphite granular layer-1; Furnace core-2; Furnace wall-3; Old insulation material-4; New insulation material-5; Resistance material-6.

Detailed ways

In order to better understand the shape, structure and characteristics of the utility model, preferred embodiments will be listed below and described in detail with reference to the accompanying drawings.

As shown in Figure 1, the graphitization furnace of the present utility model comprises the graphite particle layer 1 on the left and right sides and the furnace core 2 positioned at the inner side of the graphite particle layer 1. Wall 3, old thermal insulation material 4 and new thermal insulation material 5, and resistance material 6 is filled between the new thermal insulation material 5 on both sides.

The utility model adopts petroleum coke as the material of the old thermal insulation material 4 and the new thermal insulation material 5 in order to overcome the deficiency of using carbon black as the thermal insulation material in the prior art. Petroleum coke is new insulation material 5 when it is newly filled into the graphitization furnace, and becomes old insulation material 4 after a period of use. In use, it is necessary to constantly take out the old material and fill it with new material.

Using petroleum coke as insulation material has the following advantages:

1. Using petroleum coke as thermal insulation material has a better thermal insulation effect, and each furnace can save 5% of power consumption.

2. Using petroleum coke as thermal insulation material can speed up the process of graphitization of raw materials, so that the degree of graphitization of products is higher and the quality is better.

3. After several furnaces of continuous use of petroleum coke as thermal insulation material, it can be used as a high-quality by-product carburizer for export, which reduces the cost. The loss of each furnace is only 1%, which reduces waste and increases the economic benefits of the enterprise.

4. The price of petroleum coke is low: 2,000 yuan/ton, while the price of carbon black is high: 6,000 yuan/ton.

5. The loss of carbon black as insulation material is large, and the loss per furnace is about 15%. And it is not easy to separate, which increases the cost.

6. Graphitized petroleum coke insulation material can make the graphitization degree of the product reach more than 90%.

7. The power transmission process time of each furnace can be shortened by nearly 8 hours, which reduces the power consumption and thus reduces the product cost.

8. The process temperature can be controlled from 3200°C to 3000°C.

The above description of the utility model is illustrative rather than restrictive. Those skilled in the art understand that many modifications, changes or equivalents can be made to it within the spirit and scope of the claims, but they will all fall into the Into the protection scope of the present utility model.

Claims (3)

1. graphitizing furnace, it is characterized in that, comprise the graphite granulosa of the left and right sides and the combustion chamber that is positioned at graphite granulosa inboard, the both sides, front and back of described combustion chamber inboard all are disposed with furnace wall, old insulation material and new insulation material from outside to inside, are filled with resistance material between the new insulation material on described both sides.

2. graphitizing furnace as claimed in claim 1, is characterized in that, described old insulation material is refinery coke.

3. graphitizing furnace as claimed in claim 1, is characterized in that, described new insulation material is refinery coke.

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