A wind cooling device for producing recyclable heat graphite

Abstract

The utility model relates to graphite production technical field especially a kind of air cooling device for graphite production with recoverable heat, including reaction furnace, cooling assembly, heat recovery assembly and control system, the control system includes first solenoid valve, second solenoid valve, temperature sensor and external intelligent panel, the cooling assembly includes cold air pipe, air blower, evaporator and cold air connecting pipe, the air blower is connected with reaction furnace by cold air pipe intercommunication, the air outlet of air blower and the cold gas export of evaporator are connected by cold air connecting pipe intercommunication, the heat recovery assembly includes hot air pipe, compressor and hot gas storage tank, the hot air pipe is from reaction furnace top and extends into reaction furnace, circulation pump is equipped on the hot air pipe, the hot air pipe end is divided into first connecting pipe and second connecting pipe, cooled cold air can be re-input furnace for cooling, without directly dissipating to air, the effective use of heat can be realized to the maximum extent.

Description

Technical Field

[0001] This utility model relates to the field of graphite production technology, and in particular to an air-cooled device for graphite production that can recover heat. Background Technology

[0002] Graphite is a material with many excellent properties. It is an allotrope of carbon, a gray-black, opaque solid, chemically stable, corrosion-resistant, and does not readily react with acids, alkalis, or other reagents. Natural graphite comes from graphite deposits, but artificial graphite can also be made from raw materials such as petroleum coke and pitch coke through a series of processing steps. In the graphite production process, the raw materials need to be placed in a reaction furnace for calcination, and after cooling, they can be screened, ground, and roasted.

[0003] The heat generated in a reactor is usually dissipated to the outside or exchanged through a cooling device to reduce the temperature inside the reactor. The heat lost and dissipated into the air also reduces the heat exchange efficiency of the cooling device and fails to achieve effective heat utilization, resulting in a waste of resources. Utility Model Content

[0004] The purpose of this application is to provide an air-cooled device for graphite production that can recover heat, in order to solve the problems in the prior art.

[0005] This application provides an air-cooled device for graphite production with recoverable heat, including a reactor, a cooling assembly, a heat recovery assembly, and a control system. The control system includes a first solenoid valve, a second solenoid valve, a temperature sensor, and an external smart panel. The cooling assembly includes a cold air duct, a blower, an evaporator, and a cold air connecting pipe. The blower is connected to the reactor via the cold air duct, and the blower's outlet is connected to the evaporator's cold air outlet via the cold air connecting pipe. The heat recovery assembly includes a hot air duct, a compressor, and a hot gas storage tank. The hot air duct extends from the top of the reactor into the reactor and is equipped with a circulation pump. The end of the hot air duct is divided into a first connecting pipe and a second connecting pipe. The first connecting pipe is connected to the compressor's gas inlet, and the second connecting pipe is connected to the evaporator inlet. The compressor's hot outlet is connected to the hot gas storage tank. The first solenoid valve is located on the first connecting pipe, the second solenoid valve is located on the second connecting pipe, and the temperature sensor is located inside the hot air duct.

[0006] Furthermore, the reactor is provided with a top cover, and a hot air vent is provided on the top cover, with the hot air pipe located inside the hot air vent.

[0007] Furthermore, the bottom plate of the reactor is provided with a cold air inlet, the cold air pipe is located inside the cold air inlet, and an air distribution plate is provided above the cold air inlet.

[0008] Furthermore, the hot gas outlet of the evaporator is connected to the compressor inlet, and the condensate outlet of the compressor is connected to the evaporator to form a condensation circuit.

[0009] Furthermore, the circulating pump, the first solenoid valve, the second solenoid valve, the temperature sensor, and the external smart panel are electrically connected.

[0010] Furthermore, the hot gas storage tank is provided with a hot gas outlet.

[0011] The beneficial effects of this utility model are as follows: Through the cooling component, heat recovery component, and temperature control system, this utility model can transfer and store the hot air in the calcining furnace for secondary use. On the other hand, after the internal temperature drops, the cooling pipe is activated, which can not only continue to transfer and utilize the heat of the cold air, but also reintroduce the cooled air into the furnace for further cooling. It does not need to directly dissipate the flow into the air, thus maximizing the effective utilization of heat. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0013] Figure 2 This is a schematic diagram of the reactor and some connecting structures of this utility model.

[0014] In the picture: 1. Reactor; 11. Top cover; 12. Air distribution plate; 13. Cold air outlet; 2. Hot air duct; 21. First connecting pipe; 22. Second connecting pipe; 23. Compressor; 231. Hot outlet of compressor; 232. Condensate outlet of compressor; 24. Hot gas storage tank; 241. Hot gas outlet; 3. Cold air duct; 31. Blower; 32. Cold air connecting pipe; 33. Evaporator; 331. Hot gas outlet of evaporator; 332. Evaporator inlet; 333. Cold gas outlet of evaporator; 4. Circulating pump; 41. First solenoid valve; 42. Temperature sensor; 43. Second solenoid valve. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] like Figure 1 and Figure 2The diagram illustrates a heat-recoverable air-cooled device for graphite production, comprising a reactor 1, a cooling assembly, a heat recovery assembly, and a control system. The control system includes a first solenoid valve 41, a second solenoid valve 43, a temperature sensor 42, and an external smart panel. The cooling assembly includes a cold air duct 3, a blower 31, an evaporator 33, and a cold air connecting pipe 32. The blower 31 is connected to the reactor 1 via the cold air duct 3, and the blower 3's outlet is connected to the evaporator's cold air outlet 333 via the cold air connecting pipe 32. The evaporator's cold air outlet 333 refers to the connection point where the hot air flowing into the evaporator 3 exits after cooling. The cold air connecting pipe 32 is generally connected to the end of the blower 31 near the blower's rotating blades, or directly connected... The heat recovery assembly, which is mounted on the housing of the rotating blades, includes a hot air duct 2, a compressor 23, and a hot gas storage tank 24. The hot air duct 2 extends from the top of the reactor 1 into the reactor 1. A circulation pump 4 is installed on the hot air duct 2. The end of the hot air duct 2 is divided into a first connecting pipe 21 and a second connecting pipe 22. The first connecting pipe 221 is connected to the gas inlet of the compressor 23, and the second connecting pipe 22 is connected to the evaporator inlet 332. The hot outlet 231 of the compressor is connected to the hot gas storage tank 24. The hot outlet 231 of the compressor refers to the outlet of the gas that has been compressed and heated. The first solenoid valve 41 is located on the first connecting pipe 21, and the second solenoid valve 43 is located on the second connecting pipe 22. The temperature sensor 42 is located inside the hot air duct 2.

[0017] The reactor 1 is provided with a top cover 11, and a hot air vent is provided on the top cover 11. The hot air pipe 2 is located inside the hot air vent.

[0018] The bottom plate of the reactor 1 is provided with a cold air inlet 13, the cold air pipe 3 is located inside the cold air inlet 13, and the upper part of the cold air inlet 13 is provided with an air distribution plate 12, which is a plate with uniformly spaced openings.

[0019] The hot gas outlet 331 of the evaporator is connected to the inlet of the compressor 23, and the condensing outlet 232 of the compressor is connected to the evaporator to form a condensing circuit. The hot gas outlet of the evaporator refers to the outlet after the refrigerant absorbs heat and vaporizes, and the condensing outlet 232 of the compressor refers to the outlet after the refrigerant releases heat and becomes liquid. The refrigerant flowing inside the evaporator 33 is a low-temperature, low-pressure liquid refrigerant, which is a substance that easily absorbs heat and becomes gas, and easily releases heat and becomes liquid. When the refrigerant absorbs the heat from the hot air introduced from the hot gas inlet, the refrigerant becomes gas and enters the compressor. After being compressed by the compressor 23, the heat is released, and it becomes liquid again and flows into the evaporator 33 to complete the circulation circuit.

[0020] The circulating pump 4, the first solenoid valve 41, the second solenoid valve 43, the temperature sensor 42, and the external smart panel are electrically connected. The switching of the circulating pump 4 can be controlled through the smart panel. The temperature sensor 42 transmits signals through the electrical signal conversion of the smart panel to control the first solenoid valve 41 and the second solenoid valve 43, thereby realizing the control of each solenoid valve and the pump body through the smart panel.

[0021] The hot gas storage tank 24 is provided with a hot gas outlet 241, which can be connected to subsequent baking equipment through a connecting pipe for use in the baking process or in other processes that require hot gas baking or temperature maintenance.

[0022] The entire cold air system operates as follows: After the reactor 1 completes heating and calcination, the blower 31, circulating pump 4, and first solenoid valve 41 are turned on, while the second solenoid valve 43 remains closed. This allows the hot air in the furnace to be fed into the compressor 23 along the hot air pipe 2 and the first connecting pipe 21. After being compressed by the compressor 23, the hot air enters the hot gas storage tank 24. After a period of cooling, the temperature of the air in the furnace decreases. At this time, the temperature sensor 42 senses that the gas temperature has dropped to the set temperature, such as 35° or 30°. It then closes the first solenoid valve 41 and opens the second solenoid valve 43. The gas in the furnace then flows from the hot air pipe 2 through the second connecting pipe 22 into the evaporator 33. After being cooled by the evaporator 33, the gas temperature decreases. The cooled air flows through the cold air connecting pipe 32 into the outlet of the blower 31 and is blown into the reactor 1 by the blower 31 to cool the furnace. Meanwhile, the refrigerant in the evaporator 33 undergoes a secondary heat absorption cycle through the condensation circuit.

[0023] The above embodiments are not intended to limit the present invention. Unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. The present invention is not limited to the examples above. Changes, modifications, additions, or substitutions made by those skilled in the art within the scope of the technical solution of the present invention are also within the protection scope of the present invention. Furthermore, the technical features involved in the different embodiments of the present application described above can be combined with each other as long as they do not conflict with each other.

[0024] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A heat-recoverable air-cooling device for graphite production, characterized in that, The system includes a reactor, a cooling assembly, a heat recovery assembly, and a control system. The control system includes a first solenoid valve, a second solenoid valve, a temperature sensor, and an external smart panel. The cooling assembly includes a cold air duct, a blower, an evaporator, and a cold air connecting pipe. The blower is connected to the reactor via the cold air duct, and the blower's outlet is connected to the evaporator's cold air outlet via the cold air connecting pipe. The heat recovery assembly includes a hot air duct, a compressor, and a hot gas storage tank. The hot air duct extends from the top of the reactor into the reactor and is equipped with a circulation pump. The end of the hot air duct is divided into a first connecting pipe and a second connecting pipe. The first connecting pipe is connected to the compressor's gas inlet, and the second connecting pipe is connected to the evaporator inlet. The compressor's hot outlet is connected to the hot gas storage tank. The first solenoid valve is located on the first connecting pipe, the second solenoid valve is located on the second connecting pipe, and the temperature sensor is located inside the hot air duct.

2. The air-cooled device for graphite production with recoverable heat according to claim 1, characterized in that, The reactor is equipped with a top cover, and a hot air vent is provided on the top cover. The hot air pipe is located inside the hot air vent.

3. The heat-recoverable air-cooled device for graphite production according to claim 2, characterized in that, The bottom plate of the reactor is provided with a cold air inlet, the cold air pipe is located inside the cold air inlet, and the upper part of the cold air inlet is provided with an air distribution plate.

4. The air-cooled device for graphite production with recoverable heat according to claim 1, characterized in that, The hot gas outlet of the evaporator is connected to the compressor inlet, and the condensate outlet of the compressor is connected to the evaporator to form a condensation circuit.

5. The air-cooled device for graphite production with recoverable heat according to claim 1, characterized in that, The circulating pump, the first solenoid valve, the second solenoid valve, the temperature sensor, and the external smart panel are electrically connected.

6. The air-cooled device for graphite production with recoverable heat according to claim 1, characterized in that, The hot gas storage tank is equipped with a hot gas outlet.

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