Slow cooling equipment for large-size isostatic pressing graphite blank

Abstract

The utility model discloses slow cooling equipment for large-size isostatic pressing graphite blanks, which comprises a spray cooling box, a first bracket, a second bracket, a first spray pipe and second spray pipes, the second spray pipes are arranged at the bottom of an inner cavity of the spray cooling box at intervals, and the spray cooling box is arranged in the spray cooling box. A first guide sleeve and a second guide sleeve which are distributed in a staggered mode are vertically arranged on the second spraying pipe, a first supporting pipe extending upwards is arranged in the first guide sleeve, the first bracket is arranged on the spraying cooling box in a lifting mode and connected with the first supporting pipe, and a first supporting box is arranged at the top of the first supporting pipe; and a first cover plate is arranged at the top of the first supporting box, first water spraying holes are formed in the first cover plate at intervals, a second supporting pipe extending upwards is arranged in the second guide sleeve, spraying cooling of the top face and the bottom face of the blank can be conducted at the same time, and the cooling uniformity of the bottom face of the blank is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of cooling technology for isostatic graphite blanks, and more particularly to a slow cooling device for large-size isostatic graphite blanks. Background Technology

[0002] To improve the cooling uniformity of isostatically pressed graphite blanks, a common method is to tumble the blanks during the spraying process. Utility model patent application number 2018107152198 discloses a slow cooling device for isostatically pressed graphite blanks. A sliding block moves back and forth, causing a water spray head fixed to its bottom to move back and forth to spray water. Simultaneously, a first mounting bracket and a second mounting bracket rotate the blank body, allowing it to be uniformly cooled by the sprayed water. This method saves water and provides even cooling of the blank body.

[0003] However, for large-size isostatic graphite preforms, they are heavy and bulky. The flipping of the preforms requires a large internal space for the cooling equipment. Moreover, the flipping process of large-size isostatic graphite preforms poses certain safety hazards to the equipment and preform structure, which need to be improved. Utility Model Content

[0004] The purpose of this invention is to provide a slow cooling device for large-size isostatically pressed graphite blanks, which slows down the large-size isostatically pressed graphite blanks, improves the uniformity of cooling and operational safety, and reduces energy consumption.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A slow cooling device for large-size isostatically pressed graphite preforms includes: a spray cooling box, a first bracket, a second bracket, a first spray pipe, and a second spray pipe. The first spray pipes are spaced apart at the top of the inner cavity of the spray cooling box, and the second spray pipes are spaced apart at the bottom of the inner cavity of the spray cooling box. The second spray pipes are vertically provided with staggered first and second guide sleeves. A first support pipe extending upwards is provided in the first guide sleeve. The first bracket is movably mounted in the spray cooling box and connected to the first support pipe. A first support box is provided at the top of the first support pipe, and a first cover plate is provided at the top of the first support box. First water spray holes are spaced apart on the first cover plate. A second support pipe extending upwards is provided in the second guide sleeve. The second bracket is movably mounted in the spray cooling box and connected to the second support pipe. A second support box is provided at the top of the second support pipe, and a second cover plate is provided at the top of the second support box. Second water spray holes are spaced apart on the second cover plate.

[0007] The spray cooling box has a blank loading and unloading window on one side.

[0008] The first spray pipe is provided with downward-pointing nozzles at intervals.

[0009] It also includes a water pump, the output end of which is provided with a water delivery pipe connected to the first spray pipe and the second spray pipe.

[0010] The first bracket is provided with a first screw that connects to one side of the first support tube, and the second bracket is provided with a second screw that connects to one side of the second support tube.

[0011] The spray cooling box is equipped with a first lifting drive mechanism that drives the first bracket to rise and fall. The first lifting drive mechanism is a cylinder, a hydraulic cylinder, or an electric telescopic rod.

[0012] The spray cooling box is equipped with a second lifting drive mechanism that drives the second bracket to rise and fall. The second lifting drive mechanism is a cylinder, a hydraulic cylinder, or an electric telescopic rod.

[0013] A drain pipe is provided at the bottom of one side of the spray cooling box.

[0014] The beneficial effects of this utility model are as follows: A slow cooling device for large-size isostatic graphite preforms first uses a forklift to feed the large-size isostatic graphite preforms into a spray cooling box through the preform loading and unloading window. The preforms are supported by a first cover plate. Then, a water pump is started to supply water to the first and second spray pipes. Spraying and cooling are simultaneously applied to the top and bottom surfaces of the large-size isostatic graphite preforms using nozzles and second spray holes. During the cooling process, the second support is raised and the first support is lowered, switching the first spray hole to spray and cool the bottom surface of the large-size isostatic graphite preforms. The intermittent raising and lowering of the first and second support plates avoids the problem of ineffective spray cooling due to the first and second cover plates not covering the bottom surface of the preforms, ensuring uniform cooling of the bottom surface. Furthermore, the process does not require flipping the preforms, improving operational safety and reducing costs and energy consumption. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 yes Figure 1 A schematic diagram of the structure after the first bracket has been lowered. Detailed Implementation

[0017] The following is combined with Figures 1-2 The technical solution of this utility model will be further illustrated through specific embodiments.

[0018] like Figure 1The slow cooling device for large-size isostatically pressed graphite blanks shown includes: a water pump 2, a spray cooling box 1, a first bracket 15, a second bracket 17, a first spray pipe 4, and a second spray pipe 3. The first spray pipe 4 is arranged at intervals on the top of the inner cavity of the spray cooling box 1 and can be fixed by U-bolts, resulting in a stable structure.

[0019] The first spray pipe 4 is provided with downward-pointing nozzles 10 at intervals, which can spray and cool the top surface of the large-size isostatic graphite preform 23. Depending on the width of the large-size isostatic graphite preform 23, multiple first spray pipes 4 can be arranged along the width direction of the large-size isostatic graphite preform 23. The nozzles 10 on the first spray pipe 4 are distributed at intervals along the length direction of the large-size isostatic graphite preform 23, resulting in good uniformity of spray cooling.

[0020] The second spray pipes 3 are arranged at intervals at the bottom of the inner cavity of the spray cooling box 1. In this embodiment, the output end of the water pump 2 is provided with a water supply pipe 5 connected to the first spray pipe 4 and the second spray pipe 3 to deliver cooling water to the first spray pipe 4 and the second spray pipe 3. A frequency converter can be used to change the motor speed of the water pump 2, thereby adjusting the water flow rate of the water pump 2, changing the spray water flow rate, controlling the cooling rate, and realizing the slow cooling of the large-size isostatic graphite blank 23.

[0021] Water pump 2 is connected to the cooling tower via pipeline, and sends the cooling water from the cooling tower into water supply pipe 5. A drain pipe 21 is installed at the bottom of one side of the spray cooling box 1 for drainage. The drain pipe 21 can be connected to the cooling tower for the recycling of cooling water.

[0022] A first guide sleeve 11 and a second guide sleeve 12 are vertically arranged in an alternating pattern on the second spray pipe 3. A first support pipe 13 extends upward through the first guide sleeve 11, allowing cooling water from the second spray pipe 3 to be fed into the first support pipe 13. A second support pipe 14 extends upward through the second guide sleeve 12, allowing cooling water from the second spray pipe 3 to be fed into the second support pipe 14 without affecting the raising and lowering of the first and second support pipes 13 and 14.

[0023] The first bracket 15 is vertically and flexibly mounted in the spray cooling box 1 and connected to the first support pipe 13. In this embodiment, the first bracket 15 is provided with a first screw 20 connected to one side of the first support pipe 13, so as to realize the synchronous lifting and lowering of the first bracket 15 and the first support pipe 13. The spray cooling box 1 is provided with a first lifting drive mechanism 19 for driving the first bracket 15 to lift and lower. The first lifting drive mechanism 19 adopts a cylinder, hydraulic cylinder or electric telescopic rod, and can be controlled by PLC to drive the lifting and lowering of the first bracket 15.

[0024] A first support box 7 is provided at the top of the first support tube 13, and a first cover plate 8 is provided at the top of the first support box 7. First water spray holes are spaced apart on the first cover plate 8. Figure 2 As shown, cooling water is fed into the first support box 7 through the first support pipe 13 and sprayed out through the first water spray hole on the first cover plate 8 to cool the bottom surface of the large-size isostatic graphite blank 23.

[0025] The second bracket 17 is vertically and flexibly mounted in the spray cooling box 1 and connected to the second support pipe 14. In this embodiment, the second bracket 17 is provided with a second screw 16 connected to one side of the second support pipe 14, realizing the linkage between the second bracket 17 and the second support pipe 14. The spray cooling box is provided with a second lifting drive mechanism 18 for driving the second bracket 17 to rise and fall. The second lifting drive mechanism 18 adopts a cylinder, hydraulic cylinder or electric telescopic rod, and can be controlled by a PLC to drive the second bracket 17 and the second support pipe 14 to rise and fall.

[0026] like Figure 2 As shown, a second support box 6 is provided on the top of the second support tube 14, and a second cover plate 9 is provided on the top of the second support box 6. Second water spray holes are provided on the second cover plate 9 at intervals. Cooling water is sent into the second support box 6 through the second support tube 14 and then sprayed upward through the second water spray holes to cool the bottom surface of the large-size isostatic graphite blank 23.

[0027] A blank loading / unloading window 22 is provided on one side of the spray cooling box 1, such as... Figure 1 As shown, a large-size isostatic graphite preform 23 is first fed into the spray cooling box 1 through the preform loading and unloading window 22 by a forklift. It is supported by the first cover plate 8. Then, the water pump 2 is started to supply water to the first spray pipe 4 and the second spray pipe 3. The top and bottom surfaces of the large-size isostatic graphite preform 23 are sprayed and cooled simultaneously by the nozzle 10 and the second spray hole.

[0028] During the cooling process, the second bracket 17 is raised and the first bracket 15 is lowered, such as... Figure 2 As shown, the first water spray hole is switched to spray cooling the bottom surface of the large-size isostatic graphite preform 23. The first support 15 and the second support 17 are intermittently switched to ensure the position height of the large-size isostatic graphite preform 23. This avoids the problem that the first cover plate 8 and the second cover plate 9 cannot effectively cover the bottom surface of the preform and spray cooling, ensuring the uniformity of cooling of the bottom surface of the preform. Moreover, the preform does not need to be flipped during the process, which improves the safety of operation and reduces energy consumption.

[0029] The above description is only a preferred embodiment of this utility model. For those skilled in the art, there will be changes in the specific implementation method and application scope based on the idea of ​​this utility model. The content of this specification should not be construed as a limitation of this utility model.

Claims

1. A slow cooling device for large-size isostatically pressed graphite preforms, characterized in that, include: The spray cooling box comprises a first bracket, a second bracket, a first spray pipe, and a second spray pipe. The first spray pipes are spaced apart at the top of the inner cavity of the spray cooling box, and the second spray pipes are spaced apart at the bottom of the inner cavity of the spray cooling box. The second spray pipes are vertically arranged with staggered first and second guide sleeves. A first support pipe extending upwards is disposed within the first guide sleeve. The first bracket is movably mounted in the spray cooling box and connected to the first support pipe. A first support box is disposed at the top of the first support pipe, and a first cover plate is disposed at the top of the first support box. First water spray holes are spaced apart on the first cover plate. The second guide sleeves contain an upwardly extending second support pipe. The second bracket is movably mounted in the spray cooling box and connected to the second support pipe. A second support box is disposed at the top of the second support pipe, and a second cover plate is disposed at the top of the second support box. Second water spray holes are spaced apart on the second cover plate.

2. The slow cooling device for large-size isostatically pressed graphite preforms according to claim 1, characterized in that, The spray cooling box has a blank loading and unloading window on one side.

3. The slow cooling device for large-size isostatically pressed graphite preforms according to claim 1, characterized in that, The first spray pipe is provided with downward-pointing nozzles at intervals.

4. The slow cooling device for large-size isostatically pressed graphite blanks according to claim 1, characterized in that, It also includes a water pump, the output end of which is provided with a water delivery pipe connected to the first spray pipe and the second spray pipe.

5. The slow cooling device for large-size isostatically pressed graphite preforms according to claim 1, characterized in that, The first bracket is provided with a first screw that connects to one side of the first support tube, and the second bracket is provided with a second screw that connects to one side of the second support tube.

6. The slow cooling device for large-size isostatically pressed graphite preforms according to claim 1, characterized in that, The spray cooling box is equipped with a first lifting drive mechanism that drives the first bracket to rise and fall. The first lifting drive mechanism is a cylinder, a hydraulic cylinder, or an electric telescopic rod.

7. The slow cooling device for large-size isostatically pressed graphite preforms according to claim 1, characterized in that, The spray cooling box is equipped with a second lifting drive mechanism that drives the second bracket to rise and fall. The second lifting drive mechanism is a cylinder, a hydraulic cylinder, or an electric telescopic rod.

8. The slow cooling device for large-size isostatically pressed graphite preforms according to claim 1, characterized in that, A drain pipe is installed at the bottom of one side of the spray cooling box.

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