Cooling device for graphite electrode production furnace

Abstract

The utility model belongs to the technical field of graphite electrode production, and particularly relates to a graphite electrode production furnace cooling device which is applied to a furnace body, a stripping assembly is arranged on the furnace body, the stripping assembly comprises a stripping cylinder, a cooling auxiliary cylinder and a plurality of cooling rings, the cooling auxiliary cylinder is provided with a cooling guide cavity, and the cooling guide cavity is communicated with the stripping cylinder. The multiple cooling rings are fixedly installed in the cooling guide cavity, a conveying cavity for conveying workpieces is formed in the cooling auxiliary barrel, and the conveying cavity is opposite to the multiple cooling rings; when passing through the cooling guide cavity and under the action of the multiple cooling rings, one section of the outer portion of a product can be pre-cooled at first, under the action of the movable guide frame, the movable guide frame can move in the pre-cooling conveying frame to drive the product to move, and therefore cooling of the product can be gradually enhanced along with movement of a workpiece in the cooling guide cavity, and the product quality is improved. And the situation that the temperature gradient is too large due to direct cooling, thermal shock cracks are likely to be generated, and the product quality is reduced is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of graphite electrode production, and particularly relates to a cooling device for a graphite electrode production furnace. Background Art

[0002] Graphite electrode refers to a high-temperature resistant graphite conductive material made from petroleum coke and asphalt coke as aggregates and coal tar as binder, through the process of raw material calcination, crushing and grinding, batching, kneading, molding, roasting, impregnation, graphitization and mechanical processing. During the calcination production process, it needs to enter the production furnace. During the production process of graphite electrodes, the graphite product needs to control its cooling rate through the cooling system to ensure that the product will not crack or deform. By controlling the cooling rate, the thermal stress on the product during the cooling process can be reduced, reducing the cracks and deformation caused by it.

[0003] The products produced in the production furnace are discharged from the furnace. Some of them are cooled during the discharge process. If the heat acts directly on the outer surface of the product, it is easy to cause part of the product to cool down rapidly, making the temperature gradient caused by cooling too large, which can easily lead to the generation of thermal shock cracks and reduce the quality of the product. Utility Model Content

[0004] The utility model provides a cooling device for a graphite electrode production furnace, which has the characteristics of avoiding excessive temperature gradient caused by direct cooling, which easily leads to the generation of thermal shock cracks and reduces product quality.

[0005] The utility model provides the following technical solutions: a graphite electrode production furnace cooling device, applied to the furnace body, the furnace body is provided with a stripping assembly, the stripping assembly includes a stripping cylinder, a cooling auxiliary cylinder and a plurality of cooling rings, the cooling auxiliary cylinder is provided with a cooling guide cavity, the plurality of cooling rings are fixedly installed in the cooling guide cavity, the interior of the cooling auxiliary cylinder has a conveying cavity for conveying workpieces, the conveying cavity is opposite to the plurality of cooling rings, and the cooling temperature of the plurality of cooling rings gradually increases from the inside to the outside, and a movable guide frame is provided on the outside of the cooling auxiliary cylinder.

[0006] Wherein, the stripping cylinder is fixedly connected to the cooling auxiliary cylinder, and the stripping cylinder is provided with a discharge feeding cavity.

[0007] The auxiliary cooling tube is fixedly connected to the furnace body, and a pre-cooling conveying rack is fixedly connected to one side of the auxiliary cooling tube.

[0008] Wherein, the movable guide frame is slidably connected to the pre-cooling conveying frame, and the movable guide frame is opposite to the conveying cavity.

[0009] Wherein, a conveying element for driving the movement of the moving guiding frame is provided on one side of the cooling auxiliary cylinder, and a guiding rod is fixedly connected to one side of the conveying element.

[0010] Wherein, the stripping cylinder is located outside the furnace body, and the diameter of the discharge feeding cavity is the same as that of the conveying cavity.

[0011] The beneficial effects of the present utility model are as follows:

[0012] By providing a stripping assembly including a stripping cylinder, a cooling auxiliary cylinder and a plurality of cooling rings, the produced products can be stripped from the cooling auxiliary cylinder and discharged through the stripping cylinder. When passing through the cooling guiding cavity and under the action of multiple cooling rings, the outer section of the product can be pre-cooled first. Under the action of the moving guiding frame, the moving guiding frame can move within the pre-cooling conveying frame to drive the movement of the product. Thus, as the workpiece moves in the cooling guiding cavity, the cooling of the product can be gradually strengthened, which is beneficial to stripping the workpiece, avoiding too large a temperature gradient caused by direct cooling, which is likely to lead to the generation of thermal shock cracks and reduce the quality of the product.

[0013] Parts not involved in this device are the same as or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural diagram of the present utility model;

[0015] Figure 2 is a schematic structural diagram of the cooling auxiliary cylinder of the present utility model;

[0016] Figure 3 is a schematic structural diagram of the cooling ring of the present utility model;

[0017] I Figure 4 is a schematic structural diagram of the stripping cylinder of the present utility model;

[0018] In the figure: 1, furnace body; 2, stripping assembly; 21, stripping cylinder; 211, discharge feeding cavity; 22, cooling auxiliary cylinder; 221, cooling guiding cavity; 222, conveying cavity; 23, cooling ring; 24, pre-cooling conveying frame; 25, conveying element; 26, moving guiding frame; 27, guiding rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Please refer to Figures 1 - 4, the present utility model provides the following technical solutions: Applied to the furnace body 1, a blanking assembly 2 is provided on the furnace body 1. The blanking assembly 2 includes a blanking cylinder 21, a cooling auxiliary cylinder 22, and a plurality of cooling rings 23. The cooling auxiliary cylinder 22 is provided with a cooling guide cavity 221. A plurality of cooling rings 23 are fixedly installed in the cooling guide cavity 221. The interior of the cooling auxiliary cylinder 22 has a conveying cavity 222 for conveying workpieces. The conveying cavity 222 faces the plurality of cooling rings 23, and the cooling temperatures of the plurality of cooling rings 23 gradually increase from the inside to the outside. A moving guide frame 26 is provided outside the cooling auxiliary cylinder 22.

[0020] In this implementation: The graphite electrode can be produced inside the furnace body 1. By providing the blanking assembly 2 including the blanking cylinder 21, the cooling auxiliary cylinder 22, and a plurality of cooling rings 23, the produced product can be ejected from the cooling auxiliary cylinder 22 and discharged through the blanking cylinder 21. There is no cooling temperature in the discharge feeding cavity 211. When the product is located in the discharge feeding cavity 211, it passes through the cooling auxiliary cylinder 22. When passing through the cooling guide cavity 221, under the action of the plurality of cooling rings 23, the outer section of the product can be pre-cooled first. Under the action of the moving guide frame 26, the moving guide frame 26 can move inside the pre-cooling conveying frame 24 to drive the product to move. Thus, as the workpiece moves in the cooling guide cavity 221, the cooling of the product can be gradually strengthened, which is beneficial to eject the workpiece, avoiding the generation of too large temperature gradient caused by direct cooling, which is likely to lead to thermal shock cracks and reduce the quality of the product. The cooling temperatures of the plurality of cooling rings 23 gradually increase from the inside to the outside. Cooling water can be injected into the cooling rings 23, so that the cooling water temperatures in each cooling ring 23 are different. The conveying element 25 can be an electric telescopic rod. When it is started, it can drive the moving guide frame 26 to slide inside the pre-cooling conveying frame 24. One end of the workpiece can be gradually discharged into the cooling guide cavity 221 by the contact of the guide rod 27.

[0021] The blanking cylinder 21 is fixedly connected to the cooling auxiliary cylinder 22. The blanking cylinder 21 is provided with a discharge feeding cavity 211; there is no cooling temperature in the discharge feeding cavity 211. When the product is located in the discharge feeding cavity 211, it passes through the cooling auxiliary cylinder 22.

[0022] The cooling auxiliary cylinder 22 is fixedly connected to the furnace body 1. A pre-cooling conveying frame 24 is fixedly connected to one side of the cooling auxiliary cylinder 22; the outer section of the product can be pre-cooled first. Under the action of the moving guide frame 26, the moving guide frame 26 can move inside the pre-cooling conveying frame 24 to drive the product to move. Thus, as the workpiece moves in the cooling guide cavity 221, the cooling of the product can be gradually strengthened.

[0023] The movable guide frame 26 is slidably connected to the pre-cooling conveying frame 24, and the movable guide frame 26 faces the conveying cavity 222; as the workpiece moves under the action of the movable guide frame 26, the workpiece is located in the cooling guide cavity 221, and the cooling of the product is gradually strengthened, which is beneficial to eject the workpiece, avoiding the generation of excessive temperature gradient caused by direct cooling, which is likely to lead to the generation of thermal shock cracks.

[0024] On one side of the cooling auxiliary cylinder 22, there is a conveying element 25 for driving the movement of the movable guide frame 26, and a guide rod 27 is fixedly connected to one side of the conveying element 25; the movable guide frame 26 slides in the pre-cooling conveying frame 24, and one end of the workpiece can be gradually discharged into the cooling guide cavity 221 by the abutment of the guide rod 27.

[0025] The blanking cylinder 21 is located outside the furnace body 1, and the diameter of the discharge feeding cavity 211 is the same as that of the conveying cavity 222; the produced product can be ejected from the cooling auxiliary cylinder 22 and discharged through the blanking cylinder 21. There is no cooling temperature in the discharge feeding cavity 211. When the product is located in the discharge feeding cavity 211, it passes through the cooling auxiliary cylinder 22. When passing through the cooling guide cavity 221 and under the action of a plurality of cooling rings 23, the outer section of the product can be pre-cooled first.

[0026] The working principle and usage process of the present utility model: The graphite electrode can be produced in the furnace body 1. By providing the blanking assembly 2 including the blanking cylinder 21, the cooling auxiliary cylinder 22 and a plurality of cooling rings 23, the produced product can be ejected from the cooling auxiliary cylinder 22 and discharged through the blanking cylinder 21. There is no cooling temperature in the discharge feeding cavity 211. When the product is located in the discharge feeding cavity 211, it passes through the cooling auxiliary cylinder 22. When passing through the cooling guide cavity 221 and under the action of a plurality of cooling rings 23, the outer section of the product can be pre-cooled first. Under the action of the movable guide frame 26, the movable guide frame 26 can move in the pre-cooling conveying frame 24 to drive the product to move. Thus, as the workpiece moves in the cooling guide cavity 221, the cooling of the product can be gradually strengthened, which is beneficial to eject the workpiece, avoiding the generation of excessive temperature gradient caused by direct cooling, which is likely to lead to the generation of thermal shock cracks and reduce the quality of the product. The cooling temperatures of the plurality of cooling rings 23 gradually increase from the inside to the outside. Cooling water can be injected into the cooling rings 23, so that the cooling water temperatures in each cooling ring 23 are different. The conveying element 25 can be an electric telescopic rod. When it is started, it can drive the movable guide frame 26 to slide in the pre-cooling conveying frame 24, and one end of the workpiece can be gradually discharged into the cooling guide cavity 221 by the abutment of the guide rod 27.

Claims

1. A cooling device for a graphite electrode production furnace, which is applied to a furnace body (1), and is characterized in that: A blanking component (2) is provided on the furnace body (1). The blanking component (2) includes a blanking cylinder (21), a cooling auxiliary cylinder (22) and a plurality of cooling rings (23). A cooling guide cavity (221) is formed in the cooling auxiliary cylinder (22). A plurality of the cooling rings (23) are fixedly installed in the cooling guide cavity (221). A conveying cavity (222) for conveying workpieces is provided inside the cooling auxiliary cylinder (22). The conveying cavity (222) faces the plurality of cooling rings (23), and the cooling temperatures of the plurality of cooling rings (23) gradually increase from inside to outside. A moving guide frame (26) is provided on the outer side of the cooling auxiliary cylinder (22).

2. The cooling device for a graphite electrode production furnace according to claim 1, characterized in that: The blanking cylinder (21) is fixedly connected to the cooling auxiliary cylinder (22), and a discharge feeding cavity (211) is formed in the blanking cylinder (21).

3. The cooling device for a graphite electrode production furnace according to claim 1, characterized in that: The cooling auxiliary cylinder (22) is fixedly connected to the furnace body (1), and a pre-cooling conveying frame (24) is fixedly connected to one side of the cooling auxiliary cylinder (22).

4. The cooling device for a graphite electrode production furnace according to claim 3, characterized in that: The moving guide frame (26) is slidably connected to the pre-cooling conveying frame (24), and the moving guide frame (26) faces the conveying cavity (222).

5. The cooling device for a graphite electrode production furnace according to claim 1, characterized in that: A conveying element (25) for driving the movement of the moving guide frame (26) is provided on one side of the cooling auxiliary cylinder (22), and a guide rod (27) is fixedly connected to one side of the conveying element (25).

6. The cooling device for a graphite electrode production furnace according to claim 2, characterized in that: The blanking cylinder (21) is located outside the furnace body (1), and the diameter of the discharge feeding cavity (211) is the same as the diameter of the conveying cavity (222).

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