Blanking cooling device of vertical graphitization furnace

Abstract

The utility model provides a blanking cooling device of a vertical graphitization furnace, the blanking cooling device comprises a multi-stage cooling pipe, a screw conveyer and a vibration conveyer, the lower end of the multi-stage cooling pipe is connected with a feed port of the screw conveyer, and a discharge port of the screw conveyer is connected with a feed port of the vibration conveyer; the multi-stage cooling pipe comprises a plurality of cooling unit pipes which are sequentially connected in the vertical direction; a hollow interlayer is arranged in each cooling unit pipe, the hollow interlayers in the cooling unit pipes are not communicated with one another, a water inlet pipe and a water outlet pipe which are communicated with the hollow interlayer in the cooling unit pipe are arranged on each cooling unit pipe, and the water outlet pipe is positioned above the water inlet pipe. The hollow interlayers of all the cooling unit pipes are not communicated, cooling water only flows into the corresponding cooling unit pipes and exchanges heat with materials located at the positions, namely, the materials located at the positions of the different cooling unit pipes can directly exchange heat with the cooling water just entering the cooling unit pipes, and therefore the heat exchange efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of graphitization furnace, in particular to a discharging cooling device of a vertical graphitization furnace. BACKGROUND

[0002] The graphitized powder is mainly used as a carbon additive in steel metallurgy, a cathode carbon block in non-ferrous metal electrolytic cell, a pre-baked anode and a diamond product, and is a very important industrial material. The existing graphitization furnace widely used is a vertical graphite resistance furnace, which heats raw materials through positive and negative graphite blocks arranged above and below. The principle is that the raw materials generate heat after being electrified due to the electric resistance of the raw materials after passing through the electric field between the positive and negative electrodes, so as to heat treat the raw materials.

[0003] After being treated by the graphitization furnace, the material needs to be cooled due to its high temperature. Generally, the material is cooled by passing through a circular tubular water jacket in the process of falling out of the graphitization furnace. The cooling water in the water jacket flows upward from bottom to top, and the water flowing in the water jacket is used to take away the heat of the material, so as to reduce the temperature of the material.

[0004] In the process of falling, the temperature of the material gradually decreases with the increase of the falling distance, that is, the temperature of the material located at a high position is higher than that of the material located at a low position. The water in the water jacket flows upward from bottom to top, and the water in the water jacket exchanges heat with the material located at a low position first and then with the material located at a high position, so that the temperature of the water located at a high position in the water jacket is higher than that of the water located at a low position. This causes the material located at a high position to exchange heat with the water with a higher temperature, resulting in low cooling efficiency of the material. CONTENT OF THE INVENTION

[0005] The present application provides a discharging cooling device of a vertical graphitization furnace, which comprises a plurality of cooling pipes, a spiral conveyor and a vibrating conveyor, the lower end of the plurality of cooling pipes is connected with the feeding port of the spiral conveyor, and the discharging port of the spiral conveyor is connected with the feeding port of the vibrating conveyor.

[0006] The plurality of cooling pipes comprises a plurality of cooling unit pipes, and the plurality of cooling unit pipes are connected in sequence in the vertical direction. Each of the cooling unit pipes is provided with a hollow interlayer, and the hollow interlayers in each of the cooling unit pipes are not communicated with each other. Each of the cooling unit pipes is provided with a water inlet pipe and a water outlet pipe which are communicated with the hollow interlayer in the cooling unit pipe, and the water outlet pipe is located above the water inlet pipe.

[0007] In one possible implementation, the discharging cooling device of the vertical graphitization furnace provided by the present application is characterized in that the inner diameters of the plurality of cooling pipes gradually decrease from top to bottom.

[0008] In one possible implementation, the vertical graphitization furnace discharging cooling device provided by the embodiment of the present application includes four cooling unit pipes, which are first cooling unit pipe, second cooling unit pipe, third cooling unit pipe and fourth cooling unit pipe from top to bottom.

[0009] In one possible implementation, the vertical graphitization furnace discharging cooling device provided by the embodiment of the present application includes first cooling unit pipe and second cooling unit pipe, which are round pipes.

[0010] In one possible implementation, the vertical graphitization furnace discharging cooling device provided by the embodiment of the present application includes third cooling unit pipe and fourth cooling unit pipe, which are flat square pipes.

[0011] In one possible implementation, the vertical graphitization furnace discharging cooling device provided by the embodiment of the present application includes third cooling unit pipe and fourth cooling unit pipe, which are flat square pipes.

[0012] In one possible implementation, the vertical graphitization furnace discharging cooling device provided by the embodiment of the present application includes first cooling unit pipe, which is sleeved with copper sleeve.

[0013] In one possible implementation, the vertical graphitization furnace discharging cooling device provided by the embodiment of the present application includes hollow interlayer in the conveying pipe of the screw conveyor, and water inlet pipe and water outlet pipe are arranged on the conveying pipe and communicate with the hollow interlayer, and the water inlet pipe and the water outlet pipe are respectively close to two ends of the conveying pipe.

[0014] In one possible implementation, the vertical graphitization furnace discharging cooling device provided by the embodiment of the present application includes hollow interlayer in the conveying pipe of the screw conveyor, and water inlet pipe and water outlet pipe are arranged on the conveying pipe and communicate with the hollow interlayer, and the water inlet pipe and the water outlet pipe are respectively close to two ends of the conveying pipe.

[0015] Beneficial effects: The hollow interlayers of the cooling unit pipes are not communicated, and the cooling water only flows into the corresponding cooling unit pipe and exchanges heat with the material located at the position, so that the material located at different cooling unit pipes can directly exchange heat with the cooling water just entering the cooling unit pipe, thereby improving the heat exchange efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced as follows. Obviously, the accompanying drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained on the basis of these drawings without creative labor.

[0017] Figure 1 is a structural schematic diagram of the downfeed cooling device of the vertical graphitization furnace provided by the embodiment of the present application Figure One ;

[0018] Figure 2 is a structural schematic diagram of the downfeed cooling device of the vertical graphitization furnace provided by the embodiment of the present application Figure Two ;

[0019] Figure 3 is a sectional schematic diagram of the downfeed cooling device of the vertical graphitization furnace provided by the embodiment of the present application Figure One ;

[0020] Figure 4 is a sectional schematic diagram of the downfeed cooling device of the vertical graphitization furnace provided by the embodiment of the present application Figure Two .

[0021] Legend of reference signs

[0022] 10 - multi-stage cooling pipe

[0023] 11 - first-stage cooling unit pipe

[0024] 12 - second-stage cooling unit pipe

[0025] 13 - third-stage cooling unit pipe

[0026] 14 - fourth-stage cooling unit pipe

[0027] 20 - screw conveyor

[0028] 21 - conveying pipe

[0029] 30 - vibrating conveyor

[0030] 31 - machine shell

[0031] 40 - copper sleeve

[0032] 50 - hollow sandwich

[0033] 60 - water inlet pipe

[0034] 70 - water outlet pipe DETAILED DESCRIPTION

[0035] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0036] Figure 1 This is a schematic diagram of the structure of the feeding and cooling device for the vertical graphitization furnace provided in this application embodiment. Figure One ; Figure 2 This is a schematic diagram of the structure of the feeding and cooling device for the vertical graphitization furnace provided in this application embodiment. Figure Two ; Figure 3 This is a schematic cross-sectional view of the feeding and cooling device of the vertical graphitization furnace provided in the embodiments of this application. Figure One ; Figure 4 This is a schematic cross-sectional view of the feeding and cooling device of the vertical graphitization furnace provided in the embodiments of this application. Figure Two .

[0037] See Figures 1 to 4 As shown in the figure, this application provides a feeding and cooling device for a vertical graphitization furnace, including a multi-stage cooling pipe 10, a screw conveyor 20, and a vibrating conveyor 30. The lower end of the multi-stage cooling pipe 10 is connected to the inlet of the screw conveyor 20, and the outlet of the screw conveyor 20 is connected to the inlet of the vibrating conveyor 30. The material processed in the vertical graphitization furnace is introduced into the screw conveyor 20 through the multi-stage cooling pipe 10, and then sequentially conveyed to the hopper through the screw conveyor 20 and the vibrating conveyor 30.

[0038] The multi-stage cooling pipe 10 includes multiple cooling unit pipes, which are connected sequentially in the vertical direction. Each cooling unit pipe has a hollow interlayer 50 inside, and the hollow interlayers 50 inside each cooling unit pipe are not interconnected. Each cooling unit pipe is provided with an inlet pipe 60 and an outlet pipe 70 that are connected to the hollow interlayer 50 inside the cooling unit pipe. The outlet pipe 70 is located above the inlet pipe 60.

[0039] Working principle: the high-temperature material after the treatment of the graphitization furnace falls in the multi-stage cooling pipe 10, and sequentially passes through each cooling unit pipe. The cooling water enters the hollow layer 50 of each cooling unit pipe through the water inlet pipe 60 on each cooling unit pipe, exchanges heat with the high-temperature material, and is discharged from the water outlet pipe 70 on each cooling unit pipe. In this process, the hollow layer 50 of each cooling unit pipe is not interconnected, and the cooling water only flows into the corresponding cooling unit pipe and exchanges heat with the material located at the position, so that the material located at different cooling unit pipes can directly exchange heat with the cooling water just entering the cooling unit pipe, thereby improving the heat exchange efficiency.

[0040] Since the temperature of the material is gradually reduced in the falling process, the temperature of the material located at the high position is higher than that of the material located at the low position. Therefore, the inner diameters of the multiple cooling pipes are arranged to be gradually reduced from top to bottom. The larger the inner diameter, the farther the distance from the material, and the smaller the inner diameter, the closer the distance from the material, thereby ensuring that the temperature reduction speed of the material is more uniform. The cooling unit pipes have four, which are the first cooling unit pipe 11, the second cooling unit pipe 12, the third cooling unit pipe 13, and the fourth cooling unit pipe 14 from top to bottom. The first cooling unit pipe 11 and the second cooling unit pipe 12 are round pipes, and the third cooling unit pipe 13 and the fourth cooling unit pipe 14 are flat square pipes. The connecting port of the third cooling unit pipe 13 connected to the second cooling unit pipe 12 is a round port, and the connecting port of the second cooling unit pipe 12 connected to the first cooling unit pipe 11 is a square port. The cooling unit pipe is changed from a round pipe to a square pipe, which can reduce the distance between the pipe walls, increase the heat exchange surface area, and make the heat exchange efficiency of the lower section of the multi-stage cooling pipe 10 higher. The copper sleeve 40 is further sleeved in the first cooling unit pipe 11, and the copper sleeve 40 has better thermal conductivity, which can increase the heat exchange efficiency.

[0041] In the embodiment of the application, the hollow layer 50 is arranged in the conveying pipe 21 of the screw conveyor 20, and the water inlet pipe 60 and the water outlet pipe 70 are arranged on the conveying pipe 21 and communicate with the hollow layer 50. The water inlet pipe 60 and the water outlet pipe 70 are respectively close to the two ends of the conveying pipe 21. The hollow layer 50 is arranged in the machine shell 31 of the vibrating conveyor 30, and the water inlet pipe 60 and the water outlet pipe 70 are arranged on the machine shell 31 and communicate with the hollow layer 50. The water inlet pipe 60 and the water outlet pipe 70 are respectively close to the two ends of the machine shell 31. In this way, the material can be cooled and radiated again when passing through the screw conveyor 20 and the vibrating conveyor 30, and the final temperature of the material can be ensured to be appropriate.

[0042] In the description of the embodiments of the present application, it should be understood that, unless specifically defined and limited otherwise, the terms "mount", "connect", "connection" should be interpreted broadly, for example, can be fixedly connected, can be indirectly connected through an intermediate medium, can be internal communication of two elements or interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0043] The terms "first", "second", "third", "fourth" and the like in the description of the present application and claims and the above drawings are used to distinguish similar objects, and do not necessarily indicate a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. For example, it can be implemented in an order other than that illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device including a series of steps or units does not necessarily have to be limited to those steps or units clearly listed, but can include other steps or units not clearly listed or inherent to the process, method, product or device.

[0044] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A downer cooling device of a vertical graphitization furnace, characterized by, The device comprises a multi-stage cooling pipe, a screw conveyor and a vibrating conveyor, the lower end of the multi-stage cooling pipe is connected with the feeding port of the screw conveyor, and the discharging port of the screw conveyor is connected with the feeding port of the vibrating conveyor. The multi-stage cooling pipe comprises a plurality of cooling unit pipes which are connected in sequence in the vertical direction, each of the cooling unit pipes is provided with a hollow interlayer, the hollow interlayers in each of the cooling unit pipes are not communicated with each other, each of the cooling unit pipes is provided with a water inlet pipe and a water outlet pipe which are communicated with the hollow interlayer in the cooling unit pipe, and the water outlet pipe is located above the water inlet pipe.

2. The downer cooling device of a vertical graphitization furnace according to claim 1, characterized by, The inner diameter of the multi-stage cooling pipe decreases from top to bottom.

3. The downer cooling device of a vertical graphitization furnace according to claim 2, characterized by The cooling unit pipes are four in total, and are a first-stage cooling unit pipe, a second-stage cooling unit pipe, a third-stage cooling unit pipe and a fourth-stage cooling unit pipe from top to bottom.

4. The downer cooling device of a vertical graphitization furnace according to claim 3, characterized by The first-stage cooling unit pipe and the second-stage cooling unit pipe are circular pipes.

5. The downer cooling device of a vertical graphitization furnace according to claim 4, characterized by The third-stage cooling unit pipe and the fourth-stage cooling unit pipe are flat square pipes.

6. The downer cooling device of a vertical graphitization furnace according to claim 5, characterized by The connecting port of the third-stage cooling unit pipe connected with the second-stage cooling unit pipe is a circular port, and the connecting port of the second-stage cooling unit pipe connected with the first-stage cooling unit pipe is a square port.

7. The downer cooling device of a vertical graphitization furnace according to claim 3, characterized by The first-stage cooling unit pipe is provided with a copper sleeve.

8. The downer cooling device of a vertical graphitization furnace according to claim 4, characterized by The conveying pipe of the screw conveyor is provided with a hollow interlayer, the conveying pipe is provided with a water inlet pipe and a water outlet pipe which are communicated with the hollow interlayer, and the water inlet pipe and the water outlet pipe are respectively close to two ends of the conveying pipe.

9. The downer cooling device of a vertical graphitization furnace according to claim 4, characterized by The machine shell of the vibrating conveyor is provided with a hollow interlayer, the machine shell is provided with a water inlet pipe and a water outlet pipe which are communicated with the hollow interlayer, and the water inlet pipe and the water outlet pipe are respectively close to two ends of the machine shell.

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