Double-layer graphite purification high-temperature reaction furnace

Abstract

The utility model discloses a double-layer graphite purification high-temperature reaction furnace, which relates to the technical field of graphite purification reaction furnaces, and comprises an outer sleeve, a furnace body arranged in the outer sleeve, an inner furnace arranged in the furnace body, a resistance wire wound on the outer side of the inner furnace, and a cavity arranged on the inner side of the furnace body, a side sleeve is arranged at the upper end of the outer sleeve, an air cylinder is installed at the upper end of the side sleeve, the piston end of the air cylinder is connected with an air cooling mechanism, and the air cooling mechanism cools from the outer side of the furnace body. Warm water is preferentially used for precooling treatment through the water pump, then cold water is introduced to enhance the cooling effect, a water-cooling and air-cooling dual-cooling mechanism is achieved in combination with the annular blowpipe driven by the air cylinder, it is ensured that the surface temperature of the furnace body is evenly distributed, local overheating is avoided, and the service life of equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to graphite purification reaction furnace technical field especially is related to a double -deck graphite purification high temperature reaction furnace. BACKGROUND

[0002] In modern industry, the graphite purification process usually needs to be carried out in a high temperature environment, which puts forward very high requirements for the cooling system of the reaction furnace.

[0003] Most of the traditional high temperature reaction furnace adopts single water cooling or air cooling mode, and cannot realize omnibearing and multi-level cooling effect. For example, only using water cooling can cause local overheating phenomenon, and only using air cooling is difficult to quickly take away a large amount of heat. The existing cooling system usually cannot ensure the uniform distribution of the surface temperature of the furnace body, and local overheating area is easy to appear, which not only affects the purification quality, but also may cause stress concentration due to uneven temperature, resulting in equipment damage. When cooling the high temperature furnace body directly with cold water, the thermal stress is easy to concentrate due to the large temperature difference, and the service life of the equipment is shortened. SUMMARY

[0004] The utility model provides a double -deck graphite purification high temperature reaction furnace, including the outer cover, install the furnace body in the outer cover, be provided with the inner stove in the furnace body, the outer side of inner stove is wound with resistance wire, the inside of furnace body is provided with cavity, and the cooling effect is realized by injecting warm water and cold water through water cooling mechanism, the upper end of outer cover is provided with side cover, and the cylinder is installed on the upper end of side cover, and the piston end of cylinder is connected with air cooling mechanism, and air cooling mechanism carries out cooling from the outside of furnace body.

[0005] Preferably, the water cooling mechanism includes an annular water outlet pipe installed at the top of the cavity, the water inlet of the annular water outlet pipe is connected with the water inlet pipe, the water inlet pipe is connected with the water outlet of the water pump, the water inlet of the water pump is connected with the cold water tank through the suction pipe, and the water outlet of the water pump is connected with the water inlet of the cold water tank through the water outlet pipe.

[0006] Preferably, one side of the suction pipe is connected with a branch pipe, and the water inlet of the branch pipe extends into the warm water tank.

[0007] Preferably, a valve one is installed on the suction pipe, and a valve two is installed on the branch pipe.

[0008] Preferably, the air cooling mechanism includes a top plate, the piston end of the cylinder is connected with the top plate, a hollow rotating shaft is rotatably arranged at the center of the top plate, and a rotating plate is fixedly connected to the bottom of the rotating shaft.

[0009] Preferably, a driven wheel is connected to the outside of the upper end of the rotating shaft, a driving wheel is rotatably arranged on the top plate, and the driving wheel is driven by the motor.

[0010] Preferably, the upper end of the rotating shaft is rotatably connected with a first air pipe, the air inlet of the first air pipe is connected with a fan, the lower end of the rotating shaft is fixedly connected with the upper end of a second air pipe, and the air outlet of the second air pipe is connected with the annular air blowing pipe.

[0011] Preferably, the lower side of the rotating plate is symmetrically provided with mounting plates, a plurality of sliding rods are fixedly arranged in a group of the mounting plates, and one side of the annular air blowing pipe is slidably connected with the sliding rods.

[0012] Preferably, a plurality of screw rods are rotatably arranged in another group of the mounting plates, the screw rods are driven by a motor, and the screw rods are threadedly connected with the other side of the annular air blowing pipe.

[0013] Preferably, the diameter of the annular air blowing pipe is greater than the diameter of the furnace body.

[0014] Compared with the prior art, the double-layer graphite purification high-temperature reaction furnace provided by the embodiment of the utility model has the advantages that:

[0015] 1. The utility model discloses a water pump is used for pumping warm water into the cavity first, and the furnace body is cooled, the precooling treatment of the warm water can avoid the thermal stress concentration caused by directly using cold water, thereby prolonging the service life of the equipment, and then pumping cold water into the cavity to improve the cooling effect, through the design of the circulating water flow, the uniform distribution of the surface temperature of the furnace body can be realized, the local overheating phenomenon is avoided, and the overall cooling effect is improved, on the basis of water cooling, the cylinder drives the top plate to descend, and the annular air blowing pipe is tightly sleeved outside the furnace body. The strong airflow generated by the air blowing pipe further enhances the cooling effect, and forms a double cooling mechanism combining water cooling and air cooling.

[0016] 2. The utility model discloses that the screw rod is used for driving the annular air blowing pipe to move back and forth, the cooling airflow can cover a larger surface area of the furnace body, the cooling efficiency is improved, and the uniform cooling of each part of the furnace body is ensured, the meshing of the driving wheel and the driven wheel is combined, the rotating shaft drives the rotating plate and the annular air blowing pipe to rotate, the coverage range of the cooling airflow is further expanded, the rotating air blowing pipe can realize 360-degree omnibearing cooling, and no cooling dead angle is ensured, the combination of the back-and-forth movement and the rotation function makes the cooling airflow more uniformly distributed on the surface of the furnace body, the local overheating phenomenon is avoided, the temperature consistency of the whole furnace body is improved, and the stress concentration problem caused by uneven temperature is reduced. DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as the limitation to the scope, and for the ordinary skilled person in the art, other related drawings can be obtained without the creative labor on the basis of the drawings.

[0018] Figure 1 It is the whole structure schematic view of the embodiment of the utility model;

[0019] Figure 2 It is the whole structure side view schematic view of the embodiment of the utility model;

[0020] Figure 3 It is the structure schematic view of the side sleeve of the embodiment of the utility model;

[0021] Figure 4 It is the air cooling mechanism structure schematic view of the embodiment of the utility model;

[0022] Figure 5 It is the structure schematic view of the rotary plate of the embodiment of the utility model;

[0023] Figure 6 It is the structure schematic view of the furnace body of the embodiment of the utility model;

[0024] Figure 7 It is the valve one, valve two installation state schematic view of the embodiment of the utility model;

[0025] Figure 8 It is the furnace body structure cross section schematic view of the embodiment of the utility model.

[0026] Reference signs:

[0027] 1, outer sleeve, 2, furnace body, 3, inner furnace, 4, resistance wire, 5, cavity, 6, annular water outlet pipe, 7, water inlet pipe, 8, drain pipe, 9, cold water tank, 10, warm water tank, 11, water pump, 12, suction pipe, 13, branch pipe, 14, valve one, 15, valve two, 16, side sleeve, 17, air cylinder, 18, top plate, 19, rotary plate, 20, rotating shaft, 21, driven wheel, 22, driving wheel, 23, air pipe one, 24, fan, 25, air pipe two, 26, mounting plate, 27, screw rod, 28, sliding rod, 29, annular air blowing pipe. DETAILED DESCRIPTION

[0028] Some embodiments of the utility model will be described in detail below with reference to the drawings. In the case of no conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0029] Please refer to Figures 1-8 The embodiment of the utility model provides a double-layer graphite purification high-temperature reaction furnace, including outer sleeve 1, furnace body 2 is installed in outer sleeve 1, inner furnace 3 is arranged in furnace body 2, resistance wire 4 is wound on the outer side of inner furnace 3, and resistance wire 4 generates heat to heat graphite secondary material in inner furnace 3.

[0030] A cavity 5 is formed in the inner side of the furnace body 2, and the cavity 5 is injected with warm water and cold water by a water cooling mechanism to achieve a cooling effect. The water cooling mechanism comprises an annular water outlet pipe 6 installed at the top of the cavity 5, the water inlet of the annular water outlet pipe 6 is connected with a water inlet pipe 7, the water inlet pipe 7 is connected with the water outlet of a water pump 11, the water inlet of the water pump 11 is connected with a cold water tank 9 through a suction pipe 12, the water outlet at the lower side of the cavity 5 is connected with the water inlet of the cold water tank 9 through a water outlet pipe 8, and the cold water in the cold water tank 9 is sucked into the cavity 5 by the suction of the water pump 11, and the cold water is sprayed to all parts of the cavity 5 through the annular water outlet pipe 6, so as to improve the cooling effect and reduce the dead angle of cooling.

[0031] Considering that direct cooling by cold water can easily cause damage to the equipment, a branch pipe 13 is connected to one side of the suction pipe 12, the water inlet of the branch pipe 13 extends to the inside of a warm water tank 10, a valve one 14 is installed on the suction pipe 12, a valve two 15 is installed on the branch pipe 13, and an electric resistance wire 4 can be installed in the wall of the warm water tank 10 to heat the water in the tank to make the cold water become warm water. Before the cold water enters the cavity 5, the valve one 14 is closed and the valve two 15 is opened, so that the water pump 11 preferentially sucks the warm water into the cavity 5. Through the pre-cooling treatment of the warm water, the thermal stress concentration caused by direct use of cold water can be avoided, thereby prolonging the service life of the equipment. After the pre-cooling treatment, the valve two 15 is closed and the valve one 14 is opened, so that the cold water is sucked into the cavity 5 to improve the cooling effect.

[0032] Further, a side sleeve 16 is arranged at the upper end of the outer sleeve 1, a cylinder 17 is installed at the upper end of the side sleeve 16, the piston end of the cylinder 17 is connected with an air cooling mechanism, and the air cooling mechanism cools from the outside of the furnace body 2.

[0033] The air cooling mechanism comprises a top plate 18, the piston end of the cylinder 17 is connected with the top plate 18, a hollow rotating shaft 20 is rotatably arranged at the center of the top plate 18, a rotating plate 19 is fixedly connected to the bottom of the rotating shaft 20, and a first air pipe 23 is rotatably connected to the upper end of the rotating shaft 20. Therefore, when the rotating shaft 20 rotates with the rotating plate 19, the delivery of cold water by the first air pipe 23 is not affected. The air inlet of the first air pipe 23 is connected with a fan 24, the lower end of the rotating shaft 20 is fixedly connected with the upper end of a second air pipe 25, and the air outlet of the second air pipe 25 is connected with an annular air blowing pipe 29. Therefore, after the fan 24 is started, cold air can enter the annular air blowing pipe 29 through the first air pipe 23 and the second air pipe 25.

[0034] Further, a plurality of mounting plates 26 are symmetrically arranged on the lower side of the rotating plate 19, a plurality of sliding rods 28 are fixedly arranged in a group of the mounting plates 26, one side of the annular blowing pipe 29 is slidably connected with the sliding rods 28, a plurality of screw rods 27 are rotatably arranged in another group of the mounting plates 26, the screw rods 27 are driven by a motor, the screw rods 27 are threadedly connected with the other side of the annular blowing pipe 29, when the cylinder 17 drives the top plate 18 to descend, the annular blowing pipe 29 is sleeved on the outer side of the furnace body 2, the diameter of the annular blowing pipe 29 is greater than the diameter of the furnace body 2, the screw rods 27 are rotated by the motor, the annular blowing pipe 29 is reciprocatingly moved up and down by the limitation of the sliding rods 28, and the cold air is delivered to the furnace body 2.

[0035] In addition, a driven wheel 21 is connected to the outer side of the upper end of the rotating shaft 20, a driving wheel 22 is rotatably arranged on the top plate 18, the driving wheel 22 is driven by a motor, the driven wheel 21 is rotated with the rotating shaft 20 and the rotating plate 19, so that the annular blowing pipe 29 is omnidirectionally rotated and blown, and the cold dead angle is avoided.

[0036] In conclusion, the working principle of the double-layer graphite purification high-temperature reaction furnace is that: the water pump 11 preferentially sucks the warm water to the cavity 5 for precooling, so as to avoid thermal stress concentration, then the cold water is introduced to enhance the cooling effect, the cylinder 17 drives the top plate 18 to descend, the annular blowing pipe 29 is sleeved on the outer side of the furnace body 2, the fan 24 delivers the cold air to the annular blowing pipe 29 through the air pipe 23 and the air pipe 25, the motor drives the screw rod 27 to reciprocatingly move the annular blowing pipe 29 up and down, the driving wheel 22 drives the driven wheel 21, the rotating shaft 20 is rotated, omnidirectional cooling is realized, and the cooling dead angle is eliminated.

[0037] The preferred embodiments of the utility model are merely used for limiting the utility model, and the utility model can be changed and varied in various ways for the person skilled in the art. Any modification, equivalent replacement, improvement and the like within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A double-layer graphite purification high-temperature reaction furnace comprising an outer jacket (1), characterized in that: The outer sleeve (1) is provided with a furnace body (2), the furnace body (2) is provided with an inner furnace (3), the outer side of the inner furnace (3) is wound with a resistance wire (4), the inner side of the furnace body (2) is provided with a cavity (5), the cavity (5) is injected with warm water and cold water by a water cooling mechanism to achieve a cooling effect, the upper end of the outer sleeve (1) is provided with a side sleeve (16), the side sleeve (16) is provided with a cylinder (17), the piston end of the cylinder (17) is connected with an air cooling mechanism, and the air cooling mechanism is cooled from the outer side of the furnace body (2).

2. The double-layer graphite purification high-temperature reaction furnace according to claim 1, characterized in that: The water cooling mechanism comprises an annular water outlet pipe (6) arranged on the top of the cavity (5), a water inlet of the annular water outlet pipe (6) is connected with a water inlet pipe (7), the water inlet pipe (7) is connected with a water outlet of a water pump (11), a water inlet of the water pump (11) is connected with a cold water tank (9) through a suction pipe (12), and a water outlet on the lower side of the cavity (5) is connected with a water inlet of the cold water tank (9) through a drain pipe (8).

3. The double-layer graphite purification high-temperature reaction furnace according to claim 2, characterized in that: One side of the suction pipe (12) is connected with a branch pipe (13), and a water inlet of the branch pipe (13) extends into the inside of a warm water tank (10).

4. The double-layer graphite purification high-temperature reaction furnace according to claim 3, characterized in that: The suction pipe (12) is provided with a valve one (14), and the branch pipe (13) is provided with a valve two (15).

5. The double-layer graphite purification high-temperature reaction furnace according to claim 1, characterized in that: The air cooling mechanism comprises a top plate (18), the piston end of the cylinder (17) is connected with the top plate (18), a hollow rotating shaft (20) is rotatably arranged at the center of the top plate (18), and the bottom of the rotating shaft (20) is fixedly connected with a rotating plate (19).

6. The double-layer graphite purification high-temperature reaction furnace according to claim 5, characterized in that: The outer side of the upper end of the rotating shaft (20) is connected with a driven wheel (21), the top plate (18) is rotatably provided with a driving wheel (22), and the driving wheel (22) is driven by a motor.

7. The double-layer graphite purification high-temperature reaction furnace according to claim 6, characterized in that: The upper end of the rotating shaft (20) is rotatably connected with a first air pipe (23), the air inlet of the first air pipe (23) is connected with a fan (24), the lower end of the rotating shaft (20) is fixedly connected with the upper end of a second air pipe (25), and the air outlet of the second air pipe (25) is connected with an annular air blowing pipe (29).

8. The double-layer graphite purification high-temperature reaction furnace according to claim 7, characterized in that: The lower side of the rotating plate (19) is symmetrically provided with mounting plates (26), a group of mounting plates (26) are fixedly provided with slide rods (28), and one side of the annular air blowing pipe (29) is slidably connected with the slide rods (28).

9. The double-layer graphite purification high-temperature reaction furnace according to claim 8, characterized in that: Another group of mounting plates (26) are rotatably provided with lead screws (27), the lead screws (27) are driven by a motor, and the lead screws (27) are threadedly connected with the other side of the annular air blowing pipe (29).

10. The double-layered graphite purification high-temperature reaction furnace according to claim 9, characterized in that: The diameter of the annular air blowing pipe (29) is greater than the diameter of the furnace body (2).

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