Cooling device for hydraulic system of crushing vehicle in electrolytic aluminum industry

Abstract

The utility model discloses a cooling device for a hydraulic system of a crushing vehicle in the electrolytic aluminum industry, the cooling device comprises a supporting assembly and a heat conduction assembly, the supporting assembly comprises a bendable hollow supporting plate and a fixing piece, and the supporting plate is provided with an air inlet pipe and an air outlet pipe; the air inlet pipe and the air outlet pipe are both communicated with an inner cavity of the supporting plate, the two opposite ends of the supporting plate are each fixedly provided with a fixing strip, and the two fixing strips are fixed through a fixing piece, so that the supporting plate is kept in an annular state; and the heat conduction assembly comprises a plurality of heat conduction pieces, one ends of the heat conduction pieces are located in the inner cavity of the supporting plate, the other ends of the heat conduction pieces penetrate through the supporting plate and extend to the outer wall of the supporting plate, and the multiple heat conduction pieces are distributed in the inner cavity of the supporting plate.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of cooling equipment, in particular to a cooling device for a hydraulic system of a crushing vehicle in an electrolytic aluminum industry. BACKGROUND

[0002] Aluminum is one of the most widely used and most economical materials due to its light weight and corrosion resistance. At present, the output and consumption of aluminum (calculated in tons) are only inferior to steel, and aluminum has become the second largest metal used by human beings.

[0003] Electrolytic aluminum is one of the main ways to obtain industrial aluminum. It is a process of extracting aluminum from bauxite. The whole production process can be divided into the following key steps: raw material preparation, electrolytic cell preparation, electrolysis, aluminum liquid extraction and casting, and refining, so as to obtain industrial aluminum.

[0004] In the raw material preparation stage, alumina (Al2O3) needs to be extracted from bauxite. Bauxite is converted into alumina powder through crushing, grinding, calcination and other steps.

[0005] In the crushing process, the crushing vehicle has a long working time, the hydraulic system has a high pressure, and the oil temperature is high. In summer, the highest temperature reaches 80 DEG. The original radiator cannot effectively reduce the temperature, and the high oil temperature can easily damage the hydraulic cylinder seal and hammer seal, and cause oil leakage.

[0006] In some existing cooling processes, the air blowing method is directly used. On the one hand, the cooling effect of the "general blowing" is poor, and on the other hand, the installation of the air blowing equipment also occupies the production site. CONTENT OF THE INVENTION

[0007] The application provides a cooling device for a hydraulic system of a crushing vehicle in an electrolytic aluminum industry.

[0008] In a first aspect, the application provides a cooling device for a hydraulic system of a crushing vehicle in an electrolytic aluminum industry. The cooling device comprises a supporting assembly and a heat conduction assembly. The supporting assembly comprises a hollow supporting plate and a fixing piece. The supporting plate is bendable. An air inlet pipe and an air outlet pipe are arranged on the supporting plate. The air inlet pipe and the air outlet pipe are in communication with the inner cavity of the supporting plate. A fixing strip is fixed to each of the opposite ends of the supporting plate. The two fixing strips are fixed to each other by the fixing piece, so that the supporting plate is kept in a ring shape. The heat conduction assembly comprises a plurality of heat conduction sheets. One end of each heat conduction sheet is located in the inner cavity of the supporting plate, and the other end of each heat conduction sheet extends to the outer wall of the supporting plate through the supporting plate. The plurality of heat conduction sheets are distributed in the inner cavity of the supporting plate.

[0009] Based on the cooling device of the embodiment of the present application, the personnel will support the plate around the hydraulic cylinder body, the heat conduction sheet is located at one end of the surface of the support plate and abuts against the cylinder body, then the two fixed bars fixed at both ends of the support plate are fixed to each other through the fixing piece, then the gas is blown into the support plate through the air pump, and the heat on the heat conduction sheet is taken out in the process of the gas being discharged from the air outlet pipe, so as to cool the hydraulic cylinder body.

[0010] In some embodiments of the present application, the heat conduction sheet is provided with a corrugated groove on the surface of the inner cavity of the support plate.

[0011] Based on the above-mentioned embodiment, the surface area of the heat conduction sheet is increased, and the heat exchange rate of the heat conduction sheet and the gas in the inner cavity of the support plate is accelerated.

[0012] In some embodiments of the present application, each heat conduction sheet is provided with a bendable heat absorption sheet on one end of the outer wall of the support plate, and the heat absorption sheet is embedded on the outer wall of the support plate.

[0013] Based on the above-mentioned embodiment, the heat exchange efficiency between the heat conduction sheet and the hydraulic cylinder body is increased through the heat absorption sheet.

[0014] In some embodiments of the present application, the support assembly further comprises a flow guide assembly, the flow guide assembly comprises a plurality of elastic flow guide films, the elastic flow guide films are located in the inner cavity of the support plate, so as to form a zigzag channel in the inner cavity of the support plate, and the air inlet pipe and the air outlet pipe are located at both ends of the channel.

[0015] Based on the above-mentioned embodiment, by setting the elastic flow guide film, the zigzag channel is formed in the inner cavity of the support plate, and the gas enters the inner cavity of the support plate from the air inlet pipe and advances along the channel, so as to drive all the air flow in the inner cavity of the support plate to flow.

[0016] In some embodiments of the present application, the support assembly further comprises a support cage, the support cage is composed of an elastic material, the support cage is embedded in the wall thickness of the support plate, and the inner cavity of the support plate is located in the support cage.

[0017] Based on the above-mentioned embodiment, the overall structural stability of the support plate is increased, and the collapse of the inner cavity of the support plate is prevented.

[0018] In some embodiments of the present application, the cooling assembly further comprises a placing barrel, a connecting pipe is arranged below the air inlet pipe, the connecting pipe is in communication with the air inlet pipe, the placing barrel is detachably connected with the connecting pipe, and the placing barrel is placed with a frozen object.

[0019] Based on the above-mentioned embodiment, when rapid cooling is needed, the frozen object is placed in the placing barrel, and the low-temperature air flow in the placing barrel is carried into the inner cavity of the support plate through the connecting pipe when the air flow in the air inlet pipe flows, so as to accelerate the cooling of the heat conduction sheet.

[0020] In some embodiments of the present application, a return pipe is connected to the air outlet pipe and communicates with the air inlet pipe, the placing barrel is located below the air outlet pipe, a first temperature control valve is arranged on the return pipe, a control valve is arranged on the air inlet pipe at a node where the return pipe communicates with the air inlet pipe, and a second temperature control valve is arranged on the air outlet pipe at a node where the return pipe communicates with the air outlet pipe.

[0021] Based on the above-mentioned embodiments, when the cold air flow in the placing barrel does not sufficiently reduce the temperature of the heat-conducting sheet before flowing out of the air outlet pipe, resources are wasted, and therefore the return pipe is added. When the temperature of the air flow in the air outlet pipe is low, the second temperature control valve on the air outlet pipe and the control valve on the air inlet pipe are both closed, and the air pump is also closed. The first temperature control valve on the return pipe is opened. Since the placing barrel is located below the air outlet pipe, the closed loop formed by this structure naturally circulates under the characteristic that the hot air flow flows upward. When the temperature of the air flow in the return pipe rises to a certain extent, the first temperature control valve on the return pipe is closed, the second temperature control valve on the air outlet pipe and the control valve on the air inlet pipe are both opened, and the air pump is opened. The cooling device continues to work.

[0022] In some embodiments of the present application, a humidifying assembly is further included. The humidifying assembly includes a water feeding pipe and a plurality of atomizing nozzles. One end of the water feeding pipe is located in the inner cavity of the support plate, and the other end of the water feeding pipe is located outside the support plate. The plurality of atomizing nozzles are distributed along the length direction of the water feeding pipe, and all the atomizing nozzles are located in the inner cavity of the support plate.

[0023] Based on the above-mentioned embodiments, by connecting an external water source to the water feeding pipe, water flow is atomized and sprayed into the inner cavity of the support plate, and the heat dissipation effect of the heat-conducting sheet is further accelerated. After the cooling device is used, the water feeding pipe is closed, and the air pump continues to blow air into the inner cavity of the support plate, so that the inner cavity of the support plate is kept dry, and the service life of the cooling device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0025] Figure 1 FIG. 1 is a structural schematic diagram of a cooling device for a hydraulic system of a broken car in an electrolytic aluminum industry;

[0026] Figure 2 FIG. 2 is a structural schematic diagram of an outer wall of a support plate, which is intended to show the structure in the inner cavity of the support plate;

[0027] Figure 3 For Figure 1 A enlarged schematic view of part A;

[0028] Figure 4 For a schematic view of the heat conduction assembly structure.

[0029] Reference signs: 01, hydraulic cylinder; 1, support assembly; 11, support plate; 111, air inlet pipe; 112, air outlet pipe; 12, fixing piece; 121, clamping strip; 13, fixed strip; 131, clamping groove; 14, support cage; 15, return pipe; 2, heat conduction assembly; 21, heat conduction sheet; 211, corrugated groove; 22, heat absorption sheet; 3, flow guide assembly; 31, elastic flow guide film; 4, cooling assembly; 41, placing barrel; 42, connecting pipe; 5, humidifying assembly; 51, water filling pipe; 52, atomizing nozzle. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical scheme and advantages of the present application clearer, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and do not limit the present application.

[0031] In the related technical field, in the process of crushing the raw materials used for electrolytic aluminum, the crushing vehicle has a long working time, the hydraulic system has a high pressure, and the oil temperature is high, reaching 80° in summer. The original radiator cannot effectively reduce the temperature, and high oil temperature can easily damage the hydraulic cylinder seal and hammer head seal, resulting in oil leakage.

[0032] In some existing cooling processes, the direct air blowing method has poor cooling effect on the one hand, and the installation of the air blowing equipment also occupies the production site on the other hand.

[0033] To solve the above technical problems, please refer to Figure 1 and Figure 2 The first aspect of the present application proposes a kind of electrolytic aluminum industry crushing vehicle hydraulic system cooling device, and the hydraulic system of a pair of crushing vehicles is cooled.

[0034] Please refer to Figure 1 and Figure 2As shown in the figure, the cooling device for the hydraulic system of the crushing vehicle in the electrolytic aluminum industry comprises a supporting assembly 1 and a heat conduction assembly 2. The supporting assembly 1 comprises a hollow bendable supporting plate 11 and a fixing member 12. An air inlet pipe 111 and an air outlet pipe 112 are arranged on the supporting plate 11. The air inlet pipe 111 and the air outlet pipe 112 are both in communication with the inner cavity of the supporting plate 11. A fixing strip 13 is fixed to each of the opposite ends of the supporting plate 11. The two fixing strips 13 are fixed to each other by the fixing member 12, so that the supporting plate 11 is kept in a ring shape. The heat conduction assembly 2 comprises a plurality of heat conduction plates 21. One end of each of the heat conduction plates 21 is located in the inner cavity of the supporting plate 11, and the other end extends to the outer wall of the supporting plate 11. The plurality of heat conduction plates 21 are distributed in the inner cavity of the supporting plate 11.

[0035] In the present application, the material of the supporting plate 11 is rubber, so that the supporting plate 11 can be easily wound around the cylinder body of the hydraulic cylinder. Then, the two fixing strips 13 are fixed by the fixing member 12, so that the supporting plate 11 is kept in a cylindrical shape. When winding, one end of the heat conduction plate 21 located on the outer surface of the supporting plate 11 is in contact with the cylinder body of the hydraulic cylinder for heat conduction. Then, the personnel connects the air pump to the air inlet pipe 111 and starts the air pump to blow air into the inner cavity of the supporting plate 11. In the process of discharging the air flow from the air outlet pipe 112, the heat emitted by the heat conduction plates 21 in the inner cavity of the supporting plate 11 is carried out, thereby reducing the temperature of the hydraulic cylinder.

[0036] Please refer to Figure 3 In order to facilitate the fixing of the two fixing strips 13, in some embodiments of the present application, a clamping groove 131 is formed on the fixing strip 13 along the length direction thereof. The fixing member 12 is a channel steel, and a clamping strip 121 is arranged on the inner wall of each of the two parallel sides of the fixing member 12 along the length direction of the fixing member 12. When the supporting plate 11 is arranged in a cylindrical shape, the two fixing strips 13 are located in the slots of the fixing member 12, and one clamping strip 121 is inserted into one clamping groove 131.

[0037] Please refer to Figure 2 and Figure 4 Please refer to Figure 1 and Figure 2 In some embodiments of the present application, a corrugated groove 211 is formed on the surface of the heat conduction plate 21 located in the inner cavity of the supporting plate 11. In this way, the surface area of the heat conduction plate 21 in the inner cavity of the supporting plate 11 is increased, so that the contact range of the heat conduction plate 21 with the air in the inner cavity of the supporting plate 11 is increased, and the evaporation of heat is accelerated.

[0038] Please refer to Figure 4As shown in some embodiments of the present application, each heat-conducting sheet 21 is provided with a bendable heat-absorbing sheet 22 at one end of the outer wall of the support plate 11, and the heat-absorbing sheet 22 is embedded on the outer side wall of the support plate 11. In this way, the contact area between the heat-conducting sheet 21 and the hydraulic cylinder body is increased, and the heat-absorbing efficiency is increased. In addition, the heat-absorbing sheet 22 in the present application can be made of soft metal, such as copper or aluminum, so as to facilitate the bending of the support plate 11.

[0039] Please refer to Figure 2 As shown in some embodiments of the present application, the electrolytic aluminum industry crushing vehicle hydraulic system cooling device further comprises a flow guide assembly 3, which comprises a plurality of elastic flow guide membranes 31. The elastic flow guide membranes 31 are located in the inner cavity of the support plate 11, so as to form a zigzag channel in the inner cavity of the support plate 11. The air inlet pipe 111 and the air outlet pipe 112 are located at both ends of the channel. The inner cavity of the support plate 11 is separated by the elastic flow guide membranes 31 to form a zigzag channel. After the air flow enters the inner cavity of the support plate 11 from the air inlet pipe 111, it advances along the zigzag channel to drive the air flow in all areas of the inner cavity of the support plate 11, thereby avoiding the formation of dead angles where the air flow cannot flow.

[0040] Please refer to Figure 2 As shown in some embodiments of the present application, the support assembly 1 further comprises a support cage 14 made of elastic material. The support cage 14 is embedded in the wall thickness of the support plate 11, and the inner cavity of the support plate 11 is located in the support cage 14. In the present application, the support cage 14 is made of rubber rod. By embedding the support cage 14 in the wall thickness of the support plate 11, the structural strength of the support plate 11 is enhanced, and the collapse of the inner cavity of the support plate 11 is avoided. In addition, the bending of the support plate 11 is not affected.

[0041] Please refer to Figure 1 and Figure 2 As shown in some embodiments of the present application, the electrolytic aluminum industry crushing vehicle hydraulic system cooling device further comprises a cooling assembly 4. The cooling assembly 4 comprises a placing barrel 41, and a connecting pipe 42 is provided below the air inlet pipe 111. The connecting pipe 42 is in communication with the air inlet pipe 111, and the placing barrel 41 is detachably connected with the connecting pipe 42. The placing barrel 41 is provided with a cold object. When rapid cooling is needed, a low-temperature object such as ice or frozen iron is placed in the placing barrel 41. Then, the placing barrel 41 is screwed with the connecting pipe 42. During the blowing process of the air pump on the air inlet pipe 111, the low-temperature object in the placing barrel 41 enters the inner cavity of the support plate 11 along with the air inlet pipe 111, thereby accelerating the heat volatilization of the heat-conducting sheet 21.

[0042] Please refer to Figure 1 and Figure 2As shown in some embodiments of the present application, the air outlet pipe 112 is connected with a backflow pipe 15 in communication with the air inlet pipe 111, the placing barrel 41 is located below the air outlet pipe 112, the backflow pipe 15 is provided with a first temperature control valve, a control valve is provided on the air inlet pipe 111 at a node where the backflow pipe 15 communicates with the air inlet pipe 111 to an air inlet of the air inlet pipe 111, and a second temperature control valve is provided on the air outlet pipe 112 at a node where the backflow pipe 15 communicates with the air outlet pipe 112 to an air outlet of the air outlet pipe 112. When the cold air flow in the placing barrel 41 flows into the inner cavity of the support plate 11 and does not sufficiently reduce the temperature of the heat-conducting sheet 21 to flow out of the air outlet pipe 112, resources are wasted, so the backflow pipe 15 is added. When the temperature of the air flow in the air outlet pipe 112 is low, the second temperature control valve on the air outlet pipe 112 and the control valve on the air inlet pipe 111 are both closed, and at the same time the air pump is closed, and the first temperature control valve on the backflow pipe 15 is opened. Since the placing barrel 41 is located below the air outlet pipe 112, the closed loop formed by this way naturally circulates under the characteristic that the hot air flow flows upward. When the temperature of the air flow in the backflow pipe 15 rises to a certain extent, the first temperature control valve on the backflow pipe 15 is closed, the second temperature control valve on the air outlet pipe 112 and the control valve on the air inlet pipe 111 are both opened, and at the same time the air pump is opened, and the cooling device continues to work.

[0043] Please refer to Figure 1 and Figure 2 As shown in some embodiments of the present application, the electrolytic aluminum industry crushing vehicle hydraulic system cooling device further comprises a humidifying assembly 5, the humidifying assembly 5 comprises a water feeding pipe 51 and a plurality of atomizing nozzles 52, one end of the water feeding pipe 51 is located in the inner cavity of the support plate 11, and the other end is located outside the support plate 11, the plurality of atomizing nozzles 52 are distributed along the length direction of the water feeding pipe 51, and all the atomizing nozzles 52 are located in the inner cavity of the support plate 11. By connecting an external water source to the water feeding pipe 51, the water flow is atomized and sprayed into the inner cavity of the support plate 11, further accelerating the heat dissipation effect of the heat-conducting sheet 21. After the cooling device is used, the water feeding pipe 51 is closed, and the air pump continues to blow air into the inner cavity of the support plate 11, so that the inner cavity of the support plate 11 remains dry, and the service life of the cooling device is improved.

[0044] The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it should be understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationship in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present patent, and for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0045] The above merely provides preferred embodiments of the present application, and is not used to limit the present application. Any modification, equivalent replacement, and improvement made in the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cooling device for a hydraulic system of a crushing vehicle in the electrolytic aluminum industry, characterized in that, The utility model relates to a heat exchange device, including: Supporting assembly, including the hollow support board of being able to bend and fixing piece, be equipped with an air inlet pipe and an air outlet pipe on the supporting board, the air inlet pipe with the air outlet pipe all with the inner chamber of the supporting board is communicated, the supporting board opposite both ends each fixed with a fixed strip, and two fixed strips are fixed with each other through fixing piece, so that the supporting board keeps annular state, and Heat conduction assembly, including a plurality of heat conduction sheets, one end of the heat conduction sheet is located in the inner chamber of the supporting board, and the other end extends to the outer wall of the supporting board through the supporting board, and a plurality of heat conduction sheets are distributed in the inner chamber of the supporting board.

2. The cooling device for the hydraulic system of the crushing vehicle in the aluminum electrolysis industry according to claim 1, characterized in that, The surface of the heat conduction sheet in the inner chamber of the supporting board is provided with a corrugated groove.

3. The cooling device for the hydraulic system of a crushing vehicle in the aluminum electrolysis industry according to claim 2, characterized in that, One end of each heat conduction sheet on the outer wall of the supporting board is provided with a bendable heat absorption sheet, and the heat absorption sheet is embedded on the outer wall of the supporting board.

4. The cooling device for the hydraulic system of a crushing vehicle in the aluminum electrolysis industry as claimed in any one of claims 1-3, characterized in that, Further including: Flow guide assembly, including a plurality of elastic flow guide films, the elastic flow guide film is located in the inner chamber of the supporting board, so as to form a zigzag channel in the inner chamber of the supporting board, and the air inlet pipe and the air outlet pipe are located at both ends of the channel.

5. The cooling device for the hydraulic system of the crushing vehicle in the aluminum electrolysis industry according to claim 1, characterized in that, The supporting assembly further includes: Supporting cage, the supporting cage is composed of elastic material, the supporting cage is embedded in the wall thickness of the supporting board, and the inner chamber of the supporting board is located in the supporting cage.

6. The cooling device for the hydraulic system of a crushing vehicle in the aluminum electrolysis industry as claimed in claim 1, characterized in that, Further including: Cold adding assembly, including a placing barrel, a connecting pipe is arranged below the air inlet pipe, the connecting pipe is communicated with the air inlet pipe, the placing barrel is detachably connected with the connecting pipe, and the placing barrel is placed with frozen objects.

7. The cooling device for the hydraulic system of a crushing vehicle in the aluminum electrolysis industry as claimed in claim 6, characterized in that, The air outlet pipe is connected with a return pipe communicated with the air inlet pipe, the placing barrel is located below the air outlet pipe, a first temperature control valve is arranged on the return pipe, a control valve is arranged on a section of the return pipe communicated with the air inlet pipe from the air inlet port of the air inlet pipe, and a second temperature control valve is arranged on a section of the return pipe communicated with the air outlet pipe from the air outlet port of the air outlet pipe.

8. The cooling device for the hydraulic system of the crushing vehicle in the aluminum electrolysis industry according to claim 1, characterized in that, Further including: Humidifying assembly, including a water adding pipe and a plurality of atomizing nozzles, one end of the water adding pipe is located in the inner chamber of the supporting board, the other end is located outside the supporting board, a plurality of atomizing nozzles are distributed along the length direction of the water adding pipe, and all the atomizing nozzles are located in the inner chamber of the supporting board.

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