Gypsum mold precision casting wax recovery processing system and method

Abstract

The invention relates to the technical field of precision casting, in particular to a gypsum mold precision casting wax recovery treatment system and method. The device is characterized by comprising a dewaxing device, a wax-water separation device, a fine impurity removal device and a storage device, according to the dewaxing device, an efficient microwave heating and low-air-pressure technology is adopted, it is guaranteed that a wax mold can be rapidly and thoroughly separated from a gypsum mold, and meanwhile the energy utilization efficiency is optimized; the wax-water separation device is combined with physical field separation and chemical flocculation methods to efficiently separate wax-water mixed liquid generated by dewaxing and remove impurities and most of water in the wax-water mixed liquid; the fine impurity removal device improves the purity of the recovered wax by virtue of high-precision filtration and molecular adsorption technologies; the dewaxing device has the beneficial effects that dewaxing is efficient and energy-saving, a low-pressure system is used for rapidly reducing pressure to form a stable environment, and a temperature and air pressure control system can be used for accurately setting parameters and automatically controlling, so that the dewaxing efficiency is improved, the energy utilization efficiency is optimized, and the heating time and the energy consumption are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of precision casting, and specifically refers to a system and method for recycling and treating wax in plaster mold precision casting. Background Art

[0002] In the process of plaster mold precision casting, wax patterns are commonly used model materials. After casting, if the waste wax patterns are not effectively recycled and treated, it will not only cause waste of resources, but also may cause certain pollution to the environment. There are many drawbacks in traditional wax recycling and treatment methods. For example, the dewaxing efficiency is low, it is difficult to quickly and thoroughly separate the wax patterns from the plaster mold, consuming a large amount of time and energy; the separation of wax and water is not thorough, resulting in low purity of the recycled wax and affecting the effect of subsequent reuse; the means of impurity removal are limited, and it is impossible to effectively remove the tiny impurities and residual moisture in the wax liquid, making it difficult for the recycled wax to meet the high standards of precision casting in terms of quality.

[0003] Therefore, it is of great practical significance to develop a high-efficiency and high-quality system and method for recycling and treating wax in plaster mold precision casting. Summary of the Invention

[0004] The purpose of the present invention is to solve the problems in the above background art, and provides a system and method for recycling and treating wax in plaster mold precision casting, which is characterized in that: it includes a dewaxing device, a wax-water separation device, a fine impurity removal device, and a storage device;

[0005] The dewaxing device uses efficient microwave heating and low-pressure technology to ensure that the wax patterns can be quickly and thoroughly separated from the plaster mold, while optimizing the energy utilization efficiency;

[0006] The wax-water separation device combines physical field separation and chemical flocculation methods to efficiently separate the wax-water mixture generated by dewaxing, removing impurities and most of the water in it;

[0007] The fine impurity removal device uses high-precision filtration and molecular adsorption technology to further remove tiny impurities and residual moisture in the wax liquid, improving the purity of the recycled wax;

[0008] The storage device is used to collect and stably store the treated wax liquid.

[0009] Preferably: The dewaxing device includes:

[0010] Microwave heating cavity: It is made of a composite material with high temperature resistance, good microwave penetration and excellent heat preservation performance, ensuring that microwaves can act on the plaster mold efficiently, making the wax patterns heat evenly, while reducing heat loss. The inner wall of the cavity is specially treated to facilitate the smooth sliding of the wax liquid after the wax patterns are separated;

[0011] Low-pressure system: Equipped with a high-performance vacuum pump group, it can quickly reduce the air pressure in the microwave heating cavity to the set value, forming a stable low-pressure environment. The air pressure pipeline is tightly connected to the microwave heating cavity, and there are multiple evenly distributed air extraction ports to ensure uniform air pressure in the cavity;

[0012] Temperature and air pressure control system: Connected to the microwave heating cavity and the low-pressure system, it can accurately set the heating temperature and air pressure parameters according to the characteristics of different wax molds, realizing automatic control;

[0013] Gypsum mold fixing bracket: Located inside the microwave heating cavity, it is used to firmly fix the gypsum mold, and its structural design will not hinder the separation of the wax mold and the outflow of the wax liquid;

[0014] During operation, place the gypsum mold with the wax mold on the gypsum mold fixing bracket, close the microwave heating cavity, start the low-pressure system. After the predetermined low air pressure is reached in the cavity, turn on the microwave heating system, and heat the gypsum mold according to the preset program, so that the wax mold quickly melts and separates from the gypsum mold under the action of low air pressure and microwaves, and the wax liquid flows into the collection channel under the action of gravity.

[0015] Preferably: The wax-water separation device includes:

[0016] Mixed liquid input pipe: Connects to the wax liquid collection channel of the dewaxing device to ensure that the wax-water mixed liquid can stably flow into the separation device. There are flow and pressure regulating valves on the pipeline, which can accurately adjust the flow rate and pressure of the mixed liquid according to the actual situation;

[0017] Cyclone separation tank: As the core component of the preliminary separation, it is made of high-strength and corrosion-resistant alloy materials. There is a special cyclone structure inside the tank body, which uses centrifugal force to preliminarily separate the wax-water mixed liquid. The heavier water and part of the impurities gather towards the tank wall and settle to the bottom, while the lighter wax liquid rises towards the center of the tank body;

[0018] Chemical flocculation reaction chamber: Connected to the cyclone separation tank, with targeted chemical flocculants added inside. Through the stirring device, the flocculants are fully mixed with the wax-water mixed liquid after preliminary separation to promote the aggregation of tiny impurities and water;

[0019] Secondary separation membrane module: Adopts a high-precision separation membrane to perform secondary separation on the mixed liquid after chemical flocculation treatment to further improve the purity of the wax liquid. The separated wax liquid is transported to the fine impurity removal device through the upper wax liquid output pipe;

[0020] Water and impurity discharge pipe: Set at the bottom of the cyclone separation tank and the chemical flocculation reaction chamber, used to discharge the separated water and impurities. There is a control valve installed on the discharge pipe, and the discharge operation can be carried out regularly.

[0021] Preferably: The fine impurity removal device includes:

[0022] Multi-stage filtration tower: Composed of multiple filtration layers with different pore sizes, it filters the wax liquid step by step to remove tiny particulate impurities. The filtration layers use replaceable high-performance filtration materials to ensure filtration effect and service life;

[0023] Molecular adsorption column: Filled with special adsorption materials, it can selectively adsorb residual moisture and other trace impurities in the wax liquid to further improve the purity of the wax liquid;

[0024] Heating and insulation system: Surrounding the multi-stage filtration tower and the molecular adsorption column, it ensures that the wax liquid maintains an appropriate temperature during the impurity removal process to prevent the wax liquid from solidifying and affecting the impurity removal effect;

[0025] Pressure monitoring and control system: Real-time monitors the pressure inside the device to ensure that the wax liquid passes through the multi-stage filtration tower and the molecular adsorption column under stable pressure conditions, improving the impurity removal efficiency.

[0026] Preferably: The storage device includes:

[0027] Storage tank: The main body is of an oval structure, made of high-strength and corrosion-resistant duplex stainless steel material, with good compressive resistance and sealing performance, which can effectively prevent external impurities and air from entering and ensure the stable quality of the wax liquid;

[0028] Feeding port: Located at the top of the storage tank, it is connected to the wax liquid output pipe of the fine impurity removal device through a sealed pipeline. The feeding port is equipped with an electric valve to achieve automatic control of feeding;

[0029] Discharging port: Set at the bottom of the storage tank, it adopts a special quick-connect structure, which is convenient for connecting the conveying pipeline to quickly convey the stored wax liquid to the subsequent use link. A flow regulating valve is installed at the discharging port to accurately control the output volume of the wax liquid;

[0030] Liquid level and temperature monitoring system: High-precision liquid level sensors and temperature sensors are installed on the side of the storage tank to real-time monitor the liquid level height and temperature of the wax liquid in the tank. The monitoring data is transmitted to the control system, which can be displayed in real time on the control panel and an alarm is issued when the liquid level or temperature exceeds the set range;

[0031] Nitrogen protection system: Connected to the storage tank, it fills nitrogen into the storage tank to form an inert gas protection atmosphere to prevent the wax liquid from oxidizing and deteriorating, and at the same time maintains the stable pressure in the tank through a pressure regulating valve.

[0032] The method for recycling and treating precision casting wax of gypsum mold of the said system is characterized by including the following steps:

[0033] Step 1: Dewaxing treatment. Place the plaster mold with the wax pattern on the plaster mold fixing bracket of the dewaxing device. Close the microwave heating chamber, start the low-pressure system to reach the predetermined low pressure in the chamber, and then turn on the microwave heating system. Heat according to the preset program to melt the wax pattern and separate it from the plaster mold, and the wax liquid flows into the collection channel.

[0034] Step 2: Wax-water separation. The wax-water mixture flows into the wax-water separation device through the mixture input pipe. First, perform preliminary centrifugal separation in the cyclone separation tank, then enter the chemical flocculation reaction chamber to add a flocculant for flocculation treatment, and finally perform secondary separation through the secondary separation membrane module. The separated wax liquid is transported to the fine impurity removal device.

[0035] Step 3: Fine impurity removal. The wax liquid enters the fine impurity removal device and passes through the multi-stage filtration tower and molecular adsorption column in sequence to remove tiny particle impurities and residual moisture. During the impurity removal process, maintain an appropriate temperature through the heating and insulation system, and maintain a stable pressure through the pressure monitoring and control system.

[0036] Step 4: Storage. The wax liquid after fine impurity removal enters the storage tank of the storage device through the feed port. Turn on the nitrogen protection system to fill nitrogen, and monitor the liquid level and temperature of the wax liquid in real time through the liquid level and temperature monitoring system. When the wax liquid is needed, transport the wax liquid to the subsequent link through the discharge port and the flow regulating valve.

[0037] Preferably: In Step 1, the power of microwave heating is adjusted according to the size of the plaster mold and the material of the wax pattern. The air pressure value of the low-pressure environment is set between 10 - 50 Pa, and the heating temperature is controlled at 10 - 20 °C above the melting point of the wax pattern.

[0038] Preferably: In Step 2, the addition amount of the chemical flocculant is calculated according to the impurity content in the wax-water mixture. The stirring speed of the stirring device is 100 - 300 r / min, and the stirring time is 5 - 10 min.

[0039] Preferably: In Step 3, the pore diameters of the filtration layers of the multi-stage filtration tower are 100 μm, 50 μm, 10 μm, and 1 μm from large to small in sequence, and the adsorption material of the molecular adsorption column is replaced every 10 - 15 times of use.

[0040] Preferably: In Step 4, the nitrogen pressure in the storage tank is maintained between 0.1 - 0.2 MPa, and the storage temperature of the wax liquid is controlled at 50 - 60 °C.

[0041] The beneficial effects of the present invention are:

[0042] Efficient and energy-saving dewaxing: The low-pressure system quickly reduces the pressure to form a stable environment. The temperature and pressure control system can accurately set parameters and automate the control, which not only improves the dewaxing efficiency but also optimizes the energy utilization efficiency, reducing the heating time and energy consumption.

[0043] Good wax-water separation effect: It can remove most of the water and impurities, greatly improving the initial purity of the wax liquid and laying a good foundation for subsequent fine impurity removal;

[0044] Thorough fine impurity removal: The heating and insulation system ensures that the wax liquid is purified at an appropriate temperature, and the pressure monitoring and control system maintains a stable pressure, comprehensively guaranteeing the further improvement of the wax liquid purity and enabling the quality of the recycled wax to meet the high standards of precision casting;

[0045] Stable storage and quality preservation: The liquid level and temperature monitoring system monitors in real time and alarms in case of abnormalities. The nitrogen protection system fills nitrogen to form an inert atmosphere, maintaining the stability of the pressure in the tank, effectively preventing the wax liquid from oxidizing and deteriorating, and ensuring the long-term stability of the wax liquid quality;

[0046] Remarkable overall benefits: This system and method start from all aspects of wax recovery, comprehensively improving the quality and recovery efficiency of the recycled wax, increasing the resource utilization rate, reducing resource waste, lowering production costs, and at the same time reducing environmental pollution, with remarkable economic and environmental benefits.

[0047] Obviously, based on the above content of the present invention, according to the common general technical knowledge and customary means in the art, without departing from the above basic technical idea of the present invention, various other forms of modifications, substitutions or changes can be made.

[0048] The following is a further detailed description of the above content of the present invention through specific embodiments in the form of examples. However, this should not be construed as limiting the scope of the above subject matter of the present invention to the following examples. All technologies implemented based on the above content of the present invention fall within the scope of the present invention. Specific embodiments

[0049] The following uses specific examples to illustrate the present invention, which is not a limitation to the present invention.

[0050] A gypsum mold precision casting wax recovery and treatment system and method, characterized in that: it includes a dewaxing device, a wax-water separation device, a fine impurity removal device, and a storage device;

[0051] The dewaxing device uses efficient microwave heating and low-pressure technology to ensure that the wax mold can be quickly and completely separated from the gypsum mold, while optimizing the energy utilization efficiency;

[0052] The wax-water separation device combines physical field separation and chemical flocculation methods to efficiently separate the wax-water mixture produced by dewaxing, removing impurities and most of the water therein;

[0053] The fine impurity removal device uses high-precision filtration and molecular adsorption technologies to further remove tiny impurities and residual water in the wax liquid, improving the purity of the recycled wax;

[0054] The storage device is used to collect and stably store the processed wax liquid.

[0055] The dewaxing device includes:

[0056] Microwave heating cavity: It is made of a composite material with high temperature resistance, good microwave penetration and excellent heat preservation performance, ensuring that microwaves can act on the gypsum mold efficiently, making the wax mold heated evenly, while reducing heat loss. The inner wall of the cavity is specially treated to facilitate the smooth sliding of the wax liquid after the wax mold is detached;

[0057] Low-pressure system: Equipped with a high-performance vacuum pump group, it can quickly reduce the air pressure in the microwave heating cavity to the set value, forming a stable low-pressure environment. The air pressure pipeline is tightly connected to the microwave heating cavity and is provided with multiple evenly distributed air extraction ports to ensure uniform air pressure in the cavity;

[0058] Temperature and air pressure control system: Connected to the microwave heating cavity and the low-pressure system, it can accurately set the heating temperature and air pressure parameters according to the characteristics of different wax molds to achieve automatic control;

[0059] Gypsum mold fixing bracket: Located inside the microwave heating cavity, it is used to firmly fix the gypsum mold, and its structural design does not hinder the detachment of the wax mold and the outflow of the wax liquid;

[0060] During operation, place the gypsum mold with the wax mold on the gypsum mold fixing bracket, close the microwave heating cavity, start the low-pressure system. After the predetermined low air pressure is reached in the cavity, turn on the microwave heating system, and heat the gypsum mold according to the preset program, so that the wax mold quickly melts and detaches from the gypsum mold under the action of low air pressure and microwaves, and the wax liquid flows into the collection channel under the action of gravity.

[0061] The wax-water separation device includes:

[0062] Mixed liquid input pipe: Connect to the wax liquid collection channel of the dewaxing device to ensure that the wax-water mixed liquid can stably flow into the separation device. A flow and pressure regulating valve is provided on the pipeline, which can accurately adjust the flow rate and pressure of the mixed liquid according to the actual situation;

[0063] Cyclone separation tank: As the core component for preliminary separation, it is made of a high-strength and corrosion-resistant alloy material. A special cyclone structure is provided inside the tank body, and the centrifugal force is used to preliminarily separate the wax-water mixed liquid. The heavier water and part of the impurities gather towards the tank wall and settle to the bottom, while the lighter wax liquid rises towards the center of the tank body;

[0064] Chemical flocculation reaction cavity: Connected to the cyclone separation tank, with targeted chemical flocculants added inside. The flocculants are fully mixed with the preliminarily separated wax-water mixed liquid through a stirring device to promote the aggregation of tiny impurities and water;

[0065] Secondary separation membrane module: It uses a high-precision separation membrane to perform secondary separation on the mixed liquid after chemical flocculation treatment, further improving the purity of the wax liquid. The separated wax liquid is transported to the fine impurity removal device through the wax liquid output pipe at the upper part;

[0066] Water and impurity discharge pipe: It is arranged at the bottom of the cyclone separation tank and the chemical flocculation reaction chamber, used to discharge the separated water and impurities. A control valve is installed on the discharge pipe, and discharge operations can be carried out regularly.

[0067] The said fine impurity removal device includes:

[0068] Multi-stage filtration tower: It consists of multiple filtration layers with different pore sizes, and filters the wax liquid step by step to remove the tiny particle impurities therein. The filtration layer uses a replaceable high-performance filtration material to ensure the filtration effect and service life;

[0069] Molecular adsorption column: It is filled with special adsorption materials, which can selectively adsorb the residual water and other trace impurities in the wax liquid, further improving the purity of the wax liquid;

[0070] Heating and insulation system: It surrounds the multi-stage filtration tower and the molecular adsorption column to ensure that the wax liquid maintains an appropriate temperature during the impurity removal process, preventing the wax liquid from solidifying and affecting the impurity removal effect;

[0071] Pressure monitoring and control system: It monitors the pressure inside the device in real time to ensure that the wax liquid passes through the multi-stage filtration tower and the molecular adsorption column under stable pressure conditions, improving the impurity removal efficiency.

[0072] The said storage device includes:

[0073] Storage tank: The main body is of an oval structure, made of high-strength and corrosion-resistant duplex stainless steel material, with good compressive resistance and sealing performance, which can effectively prevent external impurities and air from entering, and ensure the stable quality of the wax liquid;

[0074] Feeding port: It is located at the top of the storage tank and is connected to the wax liquid output pipe of the fine impurity removal device through a sealed pipeline. An electric valve is equipped at the feeding port to realize automatic control of feeding;

[0075] Discharge port: It is arranged at the bottom of the storage tank and adopts a special quick-connect structure, which is convenient for connecting the conveying pipeline to quickly transport the stored wax liquid to the subsequent use link. A flow regulating valve is installed at the discharge port to accurately control the output volume of the wax liquid;

[0076] Liquid level and temperature monitoring system: High-precision liquid level sensors and temperature sensors are installed on the side of the storage tank to monitor the liquid level height and temperature of the wax liquid in the tank in real time. The monitoring data is transmitted to the control system, which can be displayed in real time on the control panel and an alarm is issued when the liquid level or temperature exceeds the set range;

[0077] Nitrogen protection system: Connected to the storage tank, nitrogen is filled into the storage tank to form an inert gas protection atmosphere, preventing the wax liquid from oxidizing and deteriorating, and at the same time maintaining the pressure stability in the tank through a pressure regulating valve.

[0078] The method for recycling and treating precision casting wax of gypsum mold of the system is characterized by including the following steps:

[0079] Step 1: Dewaxing treatment. Place the gypsum mold with the wax mold on the gypsum mold fixing bracket of the dewaxing device, close the microwave heating cavity, start the low-pressure system to make the cavity reach a predetermined low pressure, and then turn on the microwave heating system to heat according to a preset program, so that the wax mold melts and separates from the gypsum mold, and the wax liquid flows into the collection channel;

[0080] Step 2: Wax-water separation. The wax-water mixture flows into the wax-water separation device through the mixture input pipe, first undergoes preliminary centrifugal separation in the cyclone separation tank, then enters the chemical flocculation reaction chamber to add a flocculant for flocculation treatment, and finally undergoes secondary separation through the secondary separation membrane module. The separated wax liquid is transported to the fine impurity removal device;

[0081] Step 3: Fine impurity removal. The wax liquid enters the fine impurity removal device and passes through a multi-stage filtration tower and a molecular adsorption column in sequence to remove fine particle impurities and residual moisture. During the impurity removal process, maintain an appropriate temperature through the heating and insulation system, and maintain a stable pressure through the pressure monitoring and control system;

[0082] Step 4: Storage. The wax liquid after fine impurity removal enters the storage tank of the storage device through the feed port, turn on the nitrogen protection system to fill nitrogen, and real-time monitor the liquid level and temperature of the wax liquid through the liquid level and temperature monitoring system. When the wax liquid is needed, transport the wax liquid to the subsequent link through the discharge port and the flow regulating valve.

[0083] In Step 1, the power of microwave heating is adjusted according to the size of the gypsum mold and the material of the wax mold. The air pressure value of the low-pressure environment is set between 10 - 50 Pa, and the heating temperature is controlled at 10 - 20 °C above the melting point of the wax mold.

[0084] In Step 2, the addition amount of the chemical flocculant is calculated according to the impurity content in the wax-water mixture. The stirring speed of the stirring device is 100 - 300 r / min, and the stirring time is 5 - 10 min.

[0085] In Step 3, the pore diameters of the filter layers of the multi-stage filtration tower are 100 μm, 50 μm, 10 μm, and 1 μm from large to small in sequence, and the adsorption material of the molecular adsorption column is replaced every 10 - 15 times of use.

[0086] In Step 4, the nitrogen pressure in the storage tank is maintained between 0.1 - 0.2 MPa, and the wax liquid storage temperature is controlled at 50 - 60 °C.

[0088] Example 1

[0089] Select a batch of plaster mold wax patterns with conventional sizes and materials for recycling. In the dewaxing device, set the microwave heating power to [X] W according to the wax pattern material, set the low air pressure to 30 Pa, and set the heating temperature to 15 °C above the melting point of the wax pattern. Place the plaster mold on the fixed bracket, start the low air pressure system and the microwave heating system. After about [X] minutes, the wax pattern quickly melts and detaches from the plaster mold, and the wax liquid smoothly flows into the collection channel.

[0090] The wax-water mixture enters the wax-water separation device through the mixture input pipe. After preliminary separation in the cyclone separation tank, it enters the chemical flocculation reaction chamber. Add an appropriate amount of flocculant according to the impurity content, set the stirring speed to 200 r / min, and the stirring time to 8 min. After separation by the secondary separation membrane module, the wax liquid enters the fine impurity removal device and passes through the multi-stage filtration tower and the molecular adsorption column in sequence. During the impurity removal process, maintain the temperature at [X] °C and the pressure at [X] MPa. Finally, the treated wax liquid enters the storage device, maintain the nitrogen pressure at 0.15 MPa, and control the storage temperature at 55 °C. After testing, the purity of the recycled wax reaches [X]%, meeting the usage requirements of precision casting.

[0091] Example 2

[0092] Recycle a batch of plaster mold wax patterns with larger sizes and special materials. In the dewaxing stage, adjust the microwave heating power to [X] W, set the low air pressure to 20 Pa, and the heating temperature to 18 °C above the melting point of the wax pattern. During the wax-water separation process, accurately calculate the amount of flocculant added according to the impurity content, the stirring speed is 250 r / min, and the time is 6 min. During fine impurity removal, ensure that each stage of the filtration tower and the molecular adsorption column work properly, and maintain appropriate temperature and pressure. In the storage device, maintain the nitrogen pressure at 0.18 MPa and the storage temperature at 58 °C. Finally, the purity of the recycled wax reaches [X]%, effectively realizing high-quality wax recycling.

[0093] It can be seen from the above examples that the plaster mold precision casting wax recycling system and method of the present invention can efficiently and stably realize the recycling of wax, improve the resource utilization rate, reduce the production cost, and have significant economic and environmental benefits.

[0094] It should be noted that, in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variation thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device.

[0095] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made using the content of the specification of the present invention under the inventive concept of the present invention, or direct / indirect application in other related technical fields, is included in the patent protection scope of the present invention.

[0096] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A precision casting wax recycling and treatment system for plaster molds, characterized in that: It includes a dewaxing device, a wax-water separation device, a fine impurity removal device, and a storage device; The dewaxing device utilizes efficient microwave heating and low-pressure technology to ensure that the wax mold can be quickly and thoroughly detached from the gypsum mold, while optimizing the energy utilization efficiency; The wax-water separation device combines physical field separation and chemical flocculation methods to efficiently separate the wax-water mixture produced by dewaxing, removing impurities and most of the water in it; The fine impurity removal device further removes tiny impurities and residual moisture in the wax liquid by means of high-precision filtration and molecular adsorption technology, improving the purity of the recycled wax; The storage device is used to collect and stably store the processed wax liquid.

2. The gypsum mold precision casting wax recycling and treatment system according to claim 1, characterized in that: The dewaxing device includes: Microwave heating cavity: It is made of a composite material with high temperature resistance, good microwave penetration and excellent heat preservation performance, ensuring that microwaves can act efficiently on the gypsum mold, making the wax mold evenly heated, while reducing heat loss. The inner wall of the cavity is specially treated to facilitate the smooth sliding of the wax liquid after the wax mold is detached; Low-pressure system: Equipped with a high-performance vacuum pump group, it can quickly reduce the air pressure in the microwave heating cavity to the set value, forming a stable low-pressure environment. The air pressure pipeline is tightly connected to the microwave heating cavity, and is provided with multiple evenly distributed air extraction ports to ensure uniform air pressure in the cavity; Temperature and air pressure control system: Connected to the microwave heating cavity and the low-pressure system, it can accurately set the heating temperature and air pressure parameters according to the characteristics of different wax molds, realizing automatic control; Gypsum mold fixing bracket: Located inside the microwave heating cavity, it is used to firmly fix the gypsum mold, and its structural design does not hinder the detachment of the wax mold and the outflow of the wax liquid; During operation, place the gypsum mold with the wax mold on the gypsum mold fixing bracket, close the microwave heating cavity, start the low-pressure system. After the predetermined low air pressure is reached in the cavity, turn on the microwave heating system, and heat the gypsum mold according to the preset program, so that the wax mold quickly melts and detaches from the gypsum mold under the action of low air pressure and microwaves, and the wax liquid flows into the collection channel under the action of gravity.

3. A gypsum mold precision casting wax recycling and treatment system according to claim 1, characterized in that: The wax-water separation device includes: Mixed liquid input pipe: Connects to the wax liquid collection channel of the dewaxing device to ensure that the wax-water mixture can stably flow into the separation device. The pipeline is provided with a flow rate and pressure regulating valve, which can accurately adjust the flow rate and pressure of the mixed liquid according to the actual situation; Cyclone separation tank: As the core component of the preliminary separation, it is made of a high-strength and corrosion-resistant alloy material. The inside of the tank is provided with a special cyclone structure, which uses centrifugal force to preliminarily separate the wax-water mixture. The heavier water and part of the impurities gather towards the tank wall and settle to the bottom, while the lighter wax liquid rises towards the center of the tank; Chemical flocculation reaction cavity: Connected to the cyclone separation tank, with targeted chemical flocculants added inside, and a stirring device is used to fully mix the flocculants with the wax-water mixture after preliminary separation, promoting the aggregation of tiny impurities and water; Secondary separation membrane module: Adopts a high-precision separation membrane to perform secondary separation on the mixed liquid after chemical flocculation treatment, further improving the purity of the wax liquid. The separated wax liquid is transported to the fine impurity removal device through the upper wax liquid output pipe; Water and impurity discharge pipe: It is arranged at the bottom of the cyclone separation tank and the chemical flocculation reaction chamber, used to discharge the separated water and impurities. A control valve is installed on the discharge pipe, and discharge operations can be carried out regularly.

4. A gypsum mold precision casting wax recycling and treatment system according to claim 1, characterized in that: The described fine impurity removal device includes: Multi-stage filtration tower: It consists of multiple filtration layers with different pore sizes, and filters the wax liquid step by step to remove tiny particulate impurities. The filtration layer uses replaceable high-performance filtration materials to ensure the filtration effect and service life; Molecular adsorption column: It is filled with special adsorption materials, which can selectively adsorb the residual moisture and other trace impurities in the wax liquid to further improve the purity of the wax liquid; Heating and insulation system: It surrounds the multi-stage filtration tower and the molecular adsorption column to ensure that the wax liquid maintains an appropriate temperature during the impurity removal process and prevent the wax liquid from solidifying and affecting the impurity removal effect; Pressure monitoring and control system: It monitors the pressure inside the device in real time to ensure that the wax liquid passes through the multi-stage filtration tower and the molecular adsorption column under stable pressure conditions, improving the impurity removal efficiency.

5. A gypsum mold precision casting wax recycling and treatment system according to claim 1, characterized in that: The described storage device includes: Storage tank: The main body is of an oval structure, made of high-strength and corrosion-resistant duplex stainless steel material, with good compressive resistance and sealing performance, which can effectively prevent external impurities and air from entering and ensure the stable quality of the wax liquid; Feeding port: It is located at the top of the storage tank and is connected to the wax liquid output pipe of the fine impurity removal device through a sealed pipeline. The feeding port is equipped with an electric valve to achieve automatic control of feeding; Discharge port: It is arranged at the bottom of the storage tank and adopts a special quick-connection structure, which is convenient for connecting the conveying pipeline to quickly convey the stored wax liquid to the subsequent use link. A flow regulating valve is installed at the discharge port to accurately control the output volume of the wax liquid; Liquid level and temperature monitoring system: High-precision liquid level sensors and temperature sensors are installed on the side of the storage tank to monitor the liquid level height and temperature of the wax liquid in the tank in real time. The monitoring data is transmitted to the control system, which can be displayed in real time on the control panel and an alarm is issued when the liquid level or temperature exceeds the set range; Nitrogen protection system: It is connected to the storage tank, fills nitrogen into the storage tank to form an inert gas protection atmosphere, prevents the wax liquid from oxidizing and deteriorating, and at the same time maintains the stable pressure in the tank through a pressure regulating valve.

6. A method for recycling and treating the wax used in plaster mold precision casting based on the system described in claims 1-5, characterized in that, It includes the following steps: Step 1: Dewaxing treatment. Place the plaster mold with the wax mold on the plaster mold fixing bracket of the dewaxing device, close the microwave heating chamber, start the low-pressure system to reach the predetermined low pressure in the chamber, and then turn on the microwave heating system to heat according to the preset program to melt the wax mold and separate it from the plaster mold, and the wax liquid flows into the collection channel; Step 2: Wax-water separation. The wax-water mixture flows into the wax-water separation device through the mixture input pipe. First, it is preliminarily centrifugally separated in the cyclone separation tank, then enters the chemical flocculation reaction chamber to add a flocculant for flocculation treatment, and finally passes through the secondary separation membrane module for secondary separation. The separated wax liquid is transported to the fine impurity removal device; Step 3: Fine impurity removal. The wax liquid enters the fine impurity removal device and passes through the multi-stage filtration tower and the molecular adsorption column in sequence to remove tiny particulate impurities and residual moisture. During the impurity removal process, maintain an appropriate temperature through the heating and insulation system and maintain a stable pressure through the pressure monitoring and control system. Step 4: Storage. The refined wax liquid enters the storage tank of the storage device through the feed port. The nitrogen protection system is turned on to fill nitrogen. The liquid level and temperature of the wax liquid are monitored in real time through the liquid level and temperature monitoring system. When the wax liquid is needed, it is transported to the subsequent process through the discharge port and the flow regulating valve.

7. The method for recycling and treating the precision casting wax of the plaster mold according to claim 6, wherein: In Step 1, the power of microwave heating is adjusted according to the size of the gypsum mold and the material of the wax mold. The air pressure value in the low-pressure environment is set between 10 - 50 Pa, and the heating temperature is controlled at 10 - 20 °C above the melting point of the wax mold.

8. The method for recycling and treating the precision casting wax of the plaster mold according to claim 6, characterized in that: In Step 2, the dosage of the chemical flocculant is calculated according to the impurity content in the wax-water mixture. The stirring speed of the stirring device is 100 - 300 r / min, and the stirring time is 5 - 10 min.

9. The method for recycling and treating the precision casting wax of the plaster mold according to claim 6, characterized in that: In Step 3, the pore diameters of the filter layers of the multi-stage filtration tower are 100 μm, 50 μm, 10 μm, and 1 μm from large to small in sequence. The adsorption material of the molecular adsorption column is replaced every 10 - 15 times of use.

10. The gypsum mold precision casting wax recycling and treatment method according to claim 6, characterized in that: In Step 4, the nitrogen pressure in the storage tank is maintained between 0.1 - 0.2 MPa, and the storage temperature of the wax liquid is controlled at 50 - 60 °C.