Water level and water temperature constant adjusting device for graphite electrode cooling pool

Abstract

The utility model provides a water level and water temperature constant adjusting device for a graphite electrode cooling pool, which relates to the technical field of graphite electrode processing and comprises a cooling pool and a roller conveyor, an overflow pipe is arranged on the cooling pool, and a temperature sensor and a liquid level sensor are arranged on the inner wall of the cooling pool. A suction pump and a heat exchanger are arranged on one side of the cooling pond, the input end of the suction pump communicates with the bottom of the cooling pond, the output end of the suction pump communicates with the input end of the heat exchanger, the output end of the heat exchanger communicates with the top of the cooling pond through a backflow pipe, a water tank is arranged on the other side of the cooling pond, and one end of an overflow pipe inclines downwards and communicates with the water tank. According to the device, the change of the water level and the water temperature in the cooling pond does not need to be monitored in a manual assistance manner, once fluctuation is detected, liquid supplementing and cooling water cooling procedures can be automatically completed so as to complete constant adjustment, the automation degree is improved, the labor investment is reduced, and the cooling effect on subsequent other batches of graphite electrodes is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of graphite electrode processing, in particular to a water level and water temperature constant regulating device for a graphite electrode cooling pool. Background Art

[0002] Graphite electrode refers to a high-temperature resistant graphite conductive material made of petroleum coke and asphalt coke as aggregates and coal tar as binder, through raw material calcination, crushing and grinding, batching, kneading, molding, roasting, impregnation, graphitization and mechanical processing. It is called artificial graphite electrode (referred to as graphite electrode), to distinguish it from natural graphite electrode made from natural graphite as raw material.

[0003] Graphite electrodes need to undergo a cooling process during the production and processing. The prior art uses a roller conveyor to convey the processed graphite electrodes, and one section of the roller conveyor is at the bottom of the cooling pool and is completely immersed in cooling water. As the roller conveyor works, the graphite electrode will be completely immersed in water and start a period of cooling. In order to ensure the cooling effect of the graphite electrode, an overflow pipe needs to be set on the cooling pool. The overflow pipe has one function: to ensure the maximum water storage capacity in the cooling pool so that graphite electrodes of different specifications can be completely immersed in water. The other function is to avoid the problem of the water level rising after the graphite electrode is completely immersed in water and the cooling water overflowing from all sides of the cooling pool. However, as the cooling process of a batch of graphite electrodes is carried out, the water level in the cooling pool will decrease and the temperature will rise. At this time, it is necessary to restore the water level in time and reduce the temperature of the cooling water, otherwise it will affect the cooling effect of other subsequent batches of graphite electrodes. At present, the adjustment of these two processes requires manual assistance monitoring and implementation, which is not smart enough. Utility Model Content

[0004] The purpose of the utility model is to solve the problems raised in the above background technology, and then proposes a water level and water temperature constant regulating device for a graphite electrode cooling pool.

[0005] The technical solution adopted by the utility model to solve its technical problems is:

[0006] A graphite electrode cooling pool water level and water temperature constant regulating device comprises a cooling pool and a roller conveyor, an overflow pipe is arranged on the cooling pool, a temperature sensor and a liquid level sensor are arranged on the inner wall of the cooling pool, a suction pump and a heat exchanger are arranged on one side of the cooling pool, the input end of the suction pump is connected to the bottom of the cooling pool, the output end of the suction pump is connected to the input end of the heat exchanger, the output end of the heat exchanger is connected to the top of the cooling pool through a reflux pipe, a water tank is arranged on the other side of the cooling pool, one end of the overflow pipe is inclined downward and connected to the water tank, a liquid replenishing pump is arranged on the water tank, the liquid replenishing pump is connected to the cooling pool and is electrically connected to the liquid level sensor, and the temperature sensor is electrically connected to the suction pump and the heat exchanger.

[0007] The device does not require manual assistance to monitor the changes in the water level and water temperature in the cooling pool. Once fluctuations are detected, it will automatically complete the process of replenishing the liquid and cooling the cooling water to achieve constant regulation. The degree of automation is improved and the labor input is reduced, effectively ensuring the cooling effect for subsequent batches of graphite electrodes.

[0008] Furthermore, a filter is provided between the cooling pool and the suction pump.

[0009] The above scheme extracts and removes impurities from the cooling water and cools it down after it has been used for a period of time. The filter can effectively remove impurities in the cooling water.

[0010] Furthermore, one end of the overflow pipe is connected to an auxiliary filter arranged on the cooling pool, and the auxiliary filter is connected to the water tank.

[0011] In the above scheme, after the graphite electrode is immersed in water, part of the water will flow out along the overflow pipe. At this time, this part of the water also contains impurities. The impurities in this part of the water are then removed through an auxiliary filter, which can effectively reduce the impurity content in the cooling pool.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] Compared with the existing technology, the device no longer requires manual assistance to monitor the water level and water temperature changes in the cooling pool through the mutual cooperation of the roller conveyor, temperature sensor, liquid level sensor, suction pump, heat exchanger, reflux pipe, overflow pipe, water tank and liquid replenishment pump. Once fluctuations are detected, the liquid replenishment and cooling of the cooling water will be automatically completed to achieve constant regulation. The degree of automation is improved and the labor input is reduced, effectively ensuring the cooling effect for subsequent batches of graphite electrodes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Reference numerals:

[0016] 1. Cooling pool; 101. Temperature sensor; 102. Liquid level sensor; 11. Suction pump; 12. Heat exchanger; 13. Reflux pipe; 14. Overflow pipe; 2. Water tank; 21. Liquid replenishment pump; 3. Filter; 4. Auxiliary filter. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. The utility model is further described in combination with the drawings and embodiments:

[0018] like Figure 1 As shown, a graphite electrode cooling pool 1 uses a water level and water temperature constant regulating device, including a cooling pool 1 and a roller conveyor, on which a graphite electrode is conveyed, the roller conveyor and the graphite electrode are not shown in the figure and both belong to the prior art without improvement, an overflow pipe 14 is arranged on the cooling pool 1, a temperature sensor 101 and a liquid level sensor 102 are embedded on the inner wall of the cooling pool 1, a suction pump 11 and a heat exchanger 12 are arranged on one side of the cooling pool 1, and the suction pump 11 is provided with a heat exchanger 12. The input end is connected to the bottom of the cooling pool 1, the output end of the suction pump 11 is connected to the input end of the heat exchanger 12, the output end of the heat exchanger 12 is connected to the top of the cooling pool 1 through the return pipe 13, a water tank 2 is provided on the other side of the cooling pool 1, one end of the overflow pipe 14 is tilted downward and connected to the water tank 2, a liquid replenishment pump 21 is provided on the water tank 2, the liquid replenishment pump 21 is connected to the cooling pool 1 and is electrically connected to the liquid level sensor 102, and the temperature sensor 101 is electrically connected to the suction pump 11 and the heat exchanger 12.

[0019] It should be noted that the roller conveyor, the temperature sensor 101, the liquid level sensor 102, the suction pump 11, the heat exchanger 12 and the liquid replenishing pump 21 are all electrically connected to the controller, which is not shown in the figure.

[0020] The workflow of this utility model:

[0021] After a batch of graphite electrodes is conveyed along the roller conveyor and completely immersed in cooling water, the roller conveyor is stopped under the control of the controller. At this time, the graphite electrodes can stay in the cooling water for a long time to cool. After cooling for a certain period of time, the roller conveyor is resumed to realize the water discharge of the graphite electrodes. Then a batch of graphite electrodes is cooled and all leave the cooling pool 1. However, at this time, due to the immersion cooling of the batch of graphite electrodes, a part of the water source will flow out from the overflow pipe 14 into the water tank 2. The water tank 2 itself contains clean cooling water. When the liquid level sensor 102 detects that the water level has dropped, it will feed back a signal to the controller, and then the controller will control the replenishment pump 21 to work. After the replenishment pump 21 works, it will draw water from the water tank 2 and inject it back into the cooling pool 1. When the water level in the cooling pool 1 returns to the height initially set in the liquid level sensor 102, the liquid level sensor 102 will feed back a signal to the controller again, and then the replenishment pump 21 will stop working, and the water level will return to the initial state, that is, the water level is constant. The evaporation of water during the cooling process will not cause a significant drop in the liquid level and can be ignored.

[0022] When the cooling pool 1 is filled with liquid, the current water temperature can be detected by the temperature sensor 101. If the water temperature of the cooling pool 1 exceeds the upper limit of the numerical range pre-set in the temperature sensor 101, the temperature sensor 101 will feedback a signal to the controller, and then the controller controls the suction pump 11 and the heat exchanger 12 to gradually pump the water source in the cooling pool 1 into the heat exchanger 12 for cooling. The cooled water source is injected back into the cooling pool 1 along the return pipe 13. After a period of heat exchange and cooling, when the temperature sensor 101 detects that the water temperature in the cooling pool 1 drops to the normal numerical range, the temperature sensor 101 will feedback a signal to the controller again. At this time, the controller controls the suction pump 11 and the heat exchanger 12 to stop working, and the water temperature is constant at this time.

[0023] In summary, the cooling water level and the cooling water temperature can be automatically adjusted and controlled accurately. Compared with the prior art, the device does not require manual assistance to monitor the changes in the water level and water temperature in the cooling pool 1. Once fluctuations are detected, the device will automatically complete the liquid replenishment and cooling process of the cooling water to achieve constant adjustment. The degree of automation is improved and the labor input is reduced, effectively ensuring the cooling effect on subsequent batches of graphite electrodes.

[0024] In some embodiments, Figure 1 As shown, a filter 3 is provided between the cooling pool 1 and the suction pump 11; in this embodiment, the cooling water is suctioned to remove impurities and cool down after being used for a period of time, and the filter 3 can effectively remove impurities in the cooling water.

[0025] In other embodiments, Figure 1As shown, one end of the overflow pipe 14 is connected to the auxiliary filter 3 arranged on the cooling pool 1, and the auxiliary filter 3 is connected to the water tank 2. In this embodiment, after the graphite electrode is immersed in water, a part of the water source will flow out along the overflow pipe 14. At this time, this part of the water source also contains impurities. The impurities in this part of the water source are then removed through the auxiliary filter 3, which can effectively reduce the impurity content in the cooling pool 1.

[0026] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions in the specification are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the protection required by the utility model. The scope of protection required by the utility model is defined by the attached claims and their equivalents.

Claims

1. A graphite electrode cooling pool water level and temperature constant regulating device, comprising a cooling pool (1) and a roller conveyor, wherein an overflow pipe (14) is provided on the cooling pool (1), characterized in that: A temperature sensor (101) and a liquid level sensor (102) are arranged on the inner wall of the cooling pool (1); a suction pump (11) and a heat exchanger (12) are arranged on one side of the cooling pool (1); an input end of the suction pump (11) is connected to the bottom of the cooling pool (1); an output end of the suction pump (11) is connected to the input end of the heat exchanger (12); an output end of the heat exchanger (12) is connected to the top of the cooling pool (1) through a return pipe (13); a water tank (2) is arranged on the other side of the cooling pool (1); one end of the overflow pipe (14) is tilted downward and connected to the water tank (2); a liquid replenishment pump (21) is arranged on the water tank (2); the liquid replenishment pump (21) is connected to the cooling pool (1) and is electrically connected to the liquid level sensor (102); and the temperature sensor (101) is electrically connected to the suction pump (11) and the heat exchanger (12).

2. The device for regulating the water level and temperature of a graphite electrode cooling pool according to claim 1, characterized in that: A filter (3) is provided between the cooling pool (1) and the suction pump (11).

3. The device for regulating the water level and temperature of a graphite electrode cooling pool according to claim 1, characterized in that: One end of the overflow pipe (14) is connected to an auxiliary filter (4) arranged on the cooling pool (1), and the auxiliary filter (4) is connected to the water tank (2).

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