Alcohol recovery device for material forming

Abstract

An alcohol recovery device for material forming comprises a material chamber, an air heater, a cooling liquid collecting device and a refrigerating machine, the bottom of the material chamber is communicated with an air outlet of the air heater through a pipeline to heat materials in the material chamber, and the top of the material chamber is communicated with an air inlet of the cooling liquid collecting device through a pipeline to heat the materials in the material chamber. Volatilized alcohol is discharged into the cooling liquid collecting device, a refrigerant interlayer is arranged on the side wall of the cooling liquid collecting device, a refrigerant inlet and a refrigerant outlet of the refrigerant interlayer are communicated with a refrigerating machine, the material chamber comprises a tank body, a supporting frame, a material box and a filtering tank, the supporting frame is arranged at the bottom of the tank body, the material box is arranged on the supporting frame, an air outlet is formed in the top of the tank body, and the filtering tank is arranged on the air outlet. The gas outlet of the tank body is communicated with the filtering tank, and the gas outlet of the filtering tank is communicated with the cooling liquid collecting device through a pipeline, so that the heated alcohol is introduced into the cooling liquid collecting device for cooling.

Description

Technical Field

[0001] The invention relates to the technical field of resource recovery, and in particular to an alcohol recovery device for material molding. Background Art

[0002] When powder is processed into particles or blocks, alcohol can be used as a molding agent for powder material molding. After the material is molded, as the material is piled up and transported, the alcohol will evaporate from the material, resulting in alcohol waste. At the same time, when transported in a closed environment, fire or even explosion may occur, which poses certain safety hazards.

[0003] The invention with patent number 202121305244.2 and name "Forming Agent Recovery Device for Powder Metallurgy Equipment" adopts a scheme including a tank body, an upper jacket layer arranged in a conformal manner on the top of the tank body, a lower jacket layer arranged in a conformal manner on the bottom of the tank body, an inlet arranged on the side wall of the tank body and connected to the interior thereof for filling with forming agent steam and inert gas flow, an outlet arranged on the top of the tank body and connected to the interior thereof for discharging the inert gas flow, and a discharge valve arranged at the end of the tank body and connected to the interior thereof for discharging the forming agent liquid; the upper jacket layer is provided with an alternating heat source and a cold source, and the lower jacket layer is provided with a uniformly distributed heat source. During the removal stage of the molding agent vapor, cold water is passed into the upper jacket layer, and the molding agent vapor and inert gas flow enter the inlet. The molding agent vapor condenses on the inner wall of the tank after being cooled; in the later stage of the molding agent vapor removal process, hot water is passed into the upper jacket layer to liquefy the molding agent condensed on the inner wall of the tank, and the liquid molding agent flows out from the discharge valve.

[0004] However, this method discharges a lot of molding agent impurities, which need to be removed later. At the same time, the tank body needs to repeat the process of heating and cooling after the material is changed, which consumes more energy and takes a long time. Summary of the invention

[0005] In view of this, it is necessary to provide an alcohol recovery device for material molding with low impurity content, low energy consumption and high efficiency.

[0006] An alcohol recovery device for material molding comprises a material chamber, an air heater, a cooling liquid collecting device, and a refrigerator. The bottom of the material chamber is connected to the air outlet of the air heater through a pipeline to heat the material in the material chamber, and the top of the material chamber is connected to the air inlet of the cooling liquid collecting device through a pipeline to discharge the volatilized alcohol into the cooling liquid collecting device. The side wall of the cooling liquid collecting device is provided with a refrigerant interlayer, and the refrigerant inlet and the refrigerant outlet of the refrigerant interlayer are connected to the refrigerator. The material chamber comprises a tank body, a support frame, a material box, and a filter tank. The bottom of the tank body is provided with a support frame, and the material box is arranged on the support frame. The top of the tank body is provided with an air outlet, and the air outlet of the tank body is connected to the filter tank. The air outlet of the filter tank is connected to the cooling liquid collecting device through a pipeline to pass the heated alcohol into the cooling liquid collecting device for cooling.

[0007] Preferably, the cooling and liquid collecting device includes a cooling tank and a liquid collecting tank, the lower end of the cooling tank is connected to the liquid accumulation tank, the upper end of the cooling tank is connected to the filter tank through a pipeline, the cooling tank is provided with an interlayer, the interlayer is filled with coolant, the interlayer is provided with a liquid inlet and a liquid outlet, the liquid inlet and the liquid outlet of the interlayer are connected to the refrigerator through a pipeline, a drain valve is provided at the bottom of the cooling tank, the upper end of the liquid collecting tank is opposite to the drain valve, and the alcohol in the liquid collecting tank is timely received.

[0008] Preferably, an explosion-proof opening is provided on the top of the material chamber, and a pressure valve is provided on the explosion-proof opening. When the pressure in the material chamber is greater than a predetermined pressure, the pressure valve opens.

[0009] Preferably, a roller is provided at the upper end of the support frame to reduce friction during the process of the material box entering and exiting.

[0010] Preferably, the alcohol recovery device for material molding is provided with two material chambers, and the two material chambers are arranged in parallel.

[0011] Beneficial effects: The alcohol recovery device for material molding of the present invention first heats the air through an air heater, and then passes the hot air into the material chamber to heat the material. During the heating process, the alcohol in the material evaporates. After being filtered by the filter tank, the hot air containing alcohol enters the cooling liquid collection device along the pipeline. After the hot air is cooled, the alcohol in the air is liquefied and collected. Compared with the prior art, the present invention is filtered together with the hot air after the alcohol evaporates, and there are fewer alcohol impurities after the later liquefaction. At the same time, the heating and cooling of the alcohol are in different tanks, and the same vessel, such as the jacket, will not be repeatedly heated and cooled. Therefore, the alcohol recovery efficiency is higher and the recovery process is more energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of the alcohol recovery device for material molding of the present invention.

[0013] Figure 2 It is a side view of the alcohol recovery device for material molding of the present invention.

[0014] Figure 3 It is a schematic structural diagram of the material chamber of the present invention.

[0015] In the figure: an alcohol recovery device 10 for material molding, a material chamber 20, a tank body 201, a support frame 202, a material box 203, a filter tank 204, an explosion-proof port 205, an air heater 30, a cooling liquid collecting device 40, a cooling tank 401, a liquid collecting tank 402, and a refrigerator 50. DETAILED DESCRIPTION

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Please see Figures 1 to 3 A material molding alcohol recovery device 10 includes a material chamber 20, an air heater 30, a cooling liquid collecting device 40, and a refrigerator 50. The bottom of the material chamber 20 is connected to the air outlet of the air heater 30 through a pipeline to heat the material in the material chamber 20. The top of the material chamber 20 is connected to the air inlet of the cooling liquid collecting device 40 through a pipeline to discharge the volatilized alcohol into the cooling liquid collecting device 40. The side wall of the cooling liquid collecting device 40 is provided with a refrigerant interlayer, and the refrigerant inlet of the refrigerant interlayer and the refrigerant inlet are connected to the cooling liquid collecting device 40. The media outlet is connected to the refrigerator 50, and the material chamber 20 includes a tank body 201, a support frame 202, a material box 203, and a filter tank 204. The bottom of the tank body 201 is provided with a support frame 202, and the material box 203 is arranged on the support frame 202. The top of the tank body 201 is provided with an air outlet, and the air outlet of the tank body 201 is connected to the filter tank 204. The air outlet of the filter tank 204 is connected to the cooling liquid collecting device 40 through a pipeline, so that the heated alcohol is passed into the cooling liquid collecting device 40 for cooling.

[0018] The material chamber 20 of the present invention is used to place materials after powder molding, and the materials contain alcohol. The air heater 30 is used to heat the air, and the heated air enters the material chamber 20 to heat the materials in the material chamber 20, so that the alcohol in the materials is volatilized by heat. The cooling and collecting device 40 is used to cool the hot air containing alcohol in the material chamber 20, so that the alcohol is liquefied and collected. The refrigerator 50 is used to continuously provide refrigerant to the cooling and collecting device 40, so that the alcohol in the cooling and collecting device 40 is quickly liquefied. The refrigerator 50 is relatively common and will not be described in detail.

[0019] The tank body 201 in the material chamber 20 makes the surrounding of the material in a relatively closed state, and the support frame 202 is used to place the material box 203, and the material box 203 is used to hold the material. The material box 203 can enter and exit the tank body 201. The filter tank 204 is used to filter dust and the like in the air. In particular, after the formed material is heated by hot air, the material is relatively dry. Under the action of the hot air flow, the dust on the surface of the material can easily drift with the material. The filter tank 204 can effectively absorb dust. A multi-layer filter screen can be set in the filter tank 204, and a material with a filtering function, such as activated carbon, can also be set.

[0020] In a preferred embodiment, the cooling and liquid collecting device 40 includes a cooling tank 401 and a liquid collecting tank 402. The lower end of the cooling tank 401 is connected to the liquid accumulation tank, and the upper end of the cooling tank 401 is connected to the filter tank 204 through a pipeline. The cooling tank 401 is provided with an interlayer, which is filled with coolant. The interlayer is provided with a liquid inlet and a liquid outlet. The liquid inlet and the liquid outlet of the interlayer are connected to the refrigerator 50 through a pipeline. A drain valve is provided at the bottom of the cooling tank 401, and the upper end of the liquid collecting tank 402 is opposite to the drain valve to timely receive the alcohol in the liquid collecting tank 402.

[0021] The cooled air can be discharged from the cooling tank 401 or enter the air heater 30. If the outdoor temperature is high, the air is discharged outdoors. If the outdoor temperature is low, the air is recycled into the air heater 30. The liquefied alcohol is gathered at the bottom of the cooling tank 401 by gravity. When a certain amount of alcohol is gathered, the drain valve is opened to allow the alcohol to enter the liquid collecting tank 402. Since alcohol is relatively easy to volatilize, the drain valve cannot be opened normally.

[0022] The heated hot air will continue to enter the material chamber 20. If the material chamber 20 is blocked and the air pressure increases, the alcohol concentration will also increase accordingly. Alcohol is a flammable and explosive substance. In a preferred embodiment, the top of the material chamber 20 is provided with an explosion-proof port 205, and the explosion-proof port 205 is provided with a pressure valve. When the pressure of the material chamber 20 is greater than the predetermined pressure, the pressure valve opens. In this way, the air pressure in the material chamber 20 will be maintained at a reasonable level, thereby avoiding accidents caused by excessive alcohol concentration.

[0023] Since the space in the material chamber 20 is small, loading and unloading materials is very inconvenient, and the material box 203 needs to be moved in and out of the material chamber 20. The material box 203 filled with materials is relatively heavy, so in a preferred embodiment, a roller is provided at the upper end of the support frame 202 to reduce the friction during the material box 203 entering and exiting.

[0024] The material that can be processed by one material chamber 20 is limited. However, the space of the material chamber 20 cannot be increased indefinitely. If too much material is placed in the material chamber 20, the material in the middle will be heated very slowly, resulting in insufficient alcohol recovery and low alcohol recovery efficiency. Therefore, in a preferred embodiment, the alcohol recovery device 10 for material molding is provided with two material chambers 20, and the two material chambers 20 are arranged in parallel. In this way, a large amount of material can be processed at one time. Of course, if there are more materials, multiple material chambers 20 can also be arranged in parallel.

[0025] What is disclosed above is only a preferred embodiment of the present invention, which certainly cannot be used to limit the scope of rights of the present invention. A person skilled in the art can understand that all or part of the processes of the above embodiments and equivalent changes made according to the claims of the present invention still fall within the scope of the invention.

Claims

1. An alcohol recovery device for material molding, Features: It includes a material chamber, an air heater, a cooling liquid collecting device, and a refrigerator. The bottom of the material chamber is connected to the air outlet of the air heater through a pipeline to heat the material in the material chamber. The top of the material chamber is connected to the air inlet of the cooling liquid collecting device through a pipeline to discharge the volatilized alcohol into the cooling liquid collecting device. The side wall of the cooling liquid collecting device is provided with a refrigerant interlayer. The refrigerant inlet and the refrigerant outlet of the refrigerant interlayer are connected to the refrigerator. The material chamber includes a tank body, a support frame, a material box, and a filter tank. The bottom of the tank body is provided with a support frame, and the material box is arranged on the support frame. The top of the tank body is provided with an air outlet, and the air outlet of the tank body is connected to the filter tank. The air outlet of the filter tank is connected to the cooling liquid collecting device through a pipeline to pass the heated alcohol into the cooling liquid collecting device for cooling.

2. The alcohol recovery device for material molding as claimed in claim 1, Features: The cooling and liquid collecting device comprises a cooling tank and a liquid collecting tank. The lower end of the cooling tank is connected with the liquid accumulation tank, and the upper end of the cooling tank is connected with the filter tank through a pipeline. The cooling tank is provided with an interlayer, and the interlayer is filled with coolant. The interlayer is provided with a liquid inlet and a liquid outlet. The liquid inlet and the liquid outlet of the interlayer are connected with the refrigerator through a pipeline. A drain valve is provided at the bottom of the cooling tank, and the upper end of the liquid collecting tank is opposite to the drain valve to timely receive the alcohol in the liquid collecting tank.

3. The alcohol recovery device for material molding as claimed in claim 1, Features: An explosion-proof opening is arranged on the top of the material chamber, and a pressure valve is arranged on the explosion-proof opening. When the pressure in the material chamber is greater than a predetermined pressure, the pressure valve opens.

4. The alcohol recovery device for material molding as claimed in claim 1, Features: A roller is provided at the upper end of the support frame to reduce the friction during the ingress and egress of the material box.

5. The alcohol recovery device for material molding as claimed in claim 1, Features: The alcohol recovery device for material molding is provided with two material chambers, and the two material chambers are arranged in parallel.

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