Program-controlled ultralow-temperature pulverization and drying apparatus

Abstract

Disclosed is a program-controlled ultralow-temperature pulverization and drying apparatus, which comprises three parts: product technology, software technology, and process technology. First part: product technology comprises object freezing, a water screen separator, a liquid nitrogen low-temperature pulverizer, a microwave vacuum dryer, a mechanical automatic connector, and a cleaning system. Second part: software technology comprises an automatic operation test and a self-adjustment test. Third part: process technology comprises a pre-cooling process, small-block processing, low-temperature pulverization, low-temperature drying, and a disinfecting process. The program-controlled ultralow-temperature pulverization and drying apparatus of the present invention ensures that the environment is not polluted, has a high degree of continuity and automation, has high working efficiency, turns waste into wealth, and saves resources.

Description

A program-controlled ultra-low temperature pulverization and drying device Technical Field

[0001] The present invention relates to a program-controlled ultra-low temperature pulverization and drying device technology, in particular to a program-controlled ultra-low temperature pulverization and drying device, belonging to the technical field of dryer silos. Background Art

[0002] Currently, common dryers dry and heat materials. The materials are put into the dryer silo, and then hot air is introduced into the dryer silo through the air duct to heat and dry the materials at the bottom of the dryer silo. The dried raw materials are discharged through the discharge port.

[0003] Commonly used dryers on the market, such as hot air dryers, utilize multiple blowing holes to allow hot air to be evenly sprayed into the drying tank, thereby improving the drying efficiency of the drying tank. In addition, by providing a cleaning mechanism on the observation window, the observation window is kept clean during the operation of the dryer, which is beneficial for technicians to observe the working conditions inside the drying tank through the observation window. In actual use, since powder materials are easily attached to the inner wall of the drying tank under the action of electric charge, relying solely on the vibrator on the conical bin cannot completely shake off the powder materials on the inner wall of the drying tank, resulting in material residue and thus material waste. Therefore, there is an urgent need to design a program-controlled ultra-low temperature pulverization drying device. Summary of the Invention

[0004] The technical problem to be solved by the present invention is that the dryers commonly used on the market, such as hot air dryers, utilize multiple blowing holes so that hot air can be evenly sprayed into the drying tank, thereby improving the drying efficiency of the drying tank. In addition, by arranging a cleaning mechanism on the observation window, the observation window is kept clean during the operation of the dryer, which is beneficial for technicians to observe the working conditions in the drying tank through the observation window. In actual use, since powder materials are easily attached to the inner wall of the drying tank under the action of electric charge, relying solely on the vibrator on the conical bin cannot completely shake off the powder materials on the inner wall of the drying tank, which will result in material residue and thus cause material waste.

[0005] In order to solve the above technical problems, the present invention adopts the following technical means:

[0006] A program-controlled ultra-low temperature pulverization and drying device, comprising three parts: product technology, software technology, and process technology:

[0007] Part 1: Product technologies include object freezing, water curtain separator, liquid nitrogen cryogenic pulverizer, microwave vacuum dryer, mechanical automation connection, and cleaning system;

[0008] Part II: Software technology includes automated operation testing and self-regulation testing;

[0009] Part 3: Process technology includes pre-cooling process, small-piece processing, low-temperature pulverization, low-temperature drying, and disinfection process.

[0010] Preferably, a further technical solution of the present invention is:

[0011] The object freezing in the product technology includes cold storage equipment and capacity determination. The cold storage equipment includes food, biological, artificial ice rink, post-supplement type, gas-controlled type, and three-dimensional automated cold storage; the capacity determination is adjusted according to specific needs; the water curtain separator in the product technology includes visual recognition, non-standard work fixtures, automatic loading and unloading, and equipment cleaning; the liquid nitrogen low-temperature crusher includes crusher material research, fully enclosed automatic loading and unloading, and equipment cleaning.

[0012] The visual recognition includes the monitoring system visually displaying the process flow, the status of each device, and the process layout in the form of graphics or images; monitoring the working conditions through I / O input and output fields, bar graphs, curves, and data tables.

[0013] The specific working process steps of the liquid nitrogen low-temperature pulverizer are as follows:

[0014] Step 1: Material crushing: The material enters the pre-cooling chamber and is fed into the main machine by a screw feeder for crushing after reaching the set temperature;

[0015] Step 2: Liquid nitrogen cooling: While the main unit is being crushed, liquid nitrogen can continue to cool the main unit so that the temperature inside the main unit does not rise. During crushing, the temperature in the pre-cooling chamber and the main unit can drop to minus 196 degrees.

[0016] Step 3: Feeding into the barrel: After the material is crushed by the main machine, the material that meets the requirements is fed into the first-stage cyclone separator by the positive pressure of the induced draft fan and enters the stainless steel barrel;

[0017] Step 4: Recycling: The silo is equipped with a breathing valve to discharge the exhaust gas into the main engine for recycling.

[0018] The microwave vacuum dryer includes microwave frequency and wavelength, temperature control mode, vacuum mode, fully enclosed automatic loading and unloading and equipment cleaning; when the powder enters the microwave vacuum dehydration dryer through the pipeline for sterilization and drying, sampling is carried out for bacteria detection.

[0019] The mechanical automation connection includes object transportation, block object adhesion research and equipment cleaning, and the cleaning system includes disinfection mode, cleaning mode and bacterial residue detection.

[0020] The automated running test in the software technology includes the following contents: creating a test environment, loading test data, establishing test prerequisites, execution, comparing results, recording results, clearing the test environment after the test is completed, deleting useless data, saving important data, and summarizing test results; the self-regulating test includes the following contents: creating a test environment, loading test data, establishing test prerequisites, execution, comparing results, recording results, analyzing the cause of failure, fault reporting, clearing the test environment after the test is completed, deleting useless data, saving important data, and summarizing test results.

[0021] The pre-cooling process of the process technology includes pre-cooling temperature and pre-cooling time, and the plate layer temperature, vacuum pressure and time are controllable in the pre-cooling process; the small-piece processing includes cutting speed, cutting particle size and cutting process, and the cut body small pieces are transported to a liquid nitrogen deep low-temperature pulverization machine; the low-temperature pulverization includes cavity temperature, operation time and pulverization mesh size.

[0022] The low-temperature drying includes temperature research, vacuum research, sterilization rate research, and water content research. The disinfection process includes disinfection method, bacteria detection, and storage method.

[0023] The program-controlled ultra-low temperature pulverization and drying device of the present invention ensures that the environment is not polluted, has a high degree of continuity and automation, has high working efficiency, turns waste into treasure, and saves resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] FIG1 is a flow chart of a program-controlled ultra-low temperature pulverization and drying device according to the present invention. DETAILED DESCRIPTION

[0025] The present invention will be further described below with reference to the embodiments.

[0026] Specific embodiment 1:

[0027] As shown in FIG1 , the program-controlled ultra-low temperature pulverization and drying device of the present invention is composed of three parts: product technology, software technology, and process technology. It is characterized by:

[0028] Product technologies include object freezing, water curtain separators, liquid nitrogen cryogenic pulverizers, microwave vacuum dryers, mechanical automation connections, and cleaning systems.

[0029] Object freezing includes cold storage equipment and capacity determination; cold storage equipment includes food, biological, artificial ice rink, post-supplement, gas-controlled, three-dimensional automation and other cold storages, and the capacity is determined according to demand.

[0030] The water curtain separator includes visual recognition, non-standard fixtures, automatic loading and unloading, and equipment cleaning. Its visual recognition includes the monitoring system that displays the process flow, the status of each equipment, and the process layout in the form of graphics or images; monitors the working conditions through I / O input and output fields, bar graphs, curves, data tables, etc.; the image of the video camera is integrated into the monitoring screen as a whole, and the monitoring screen is browsed on the client through the standard IE browser to reduce the project cost. The system also provides operation prompts, automatic blocking of erroneous operations and other functions. The screen switching speed is less than 3 seconds. At the same time, the system is also equipped with automatic alarm and event processing. The system can quickly detect and prompt, display, and print the corresponding alarm text through the change of screen status. At the same time, it issues a sound alarm to remind the monitoring personnel to pay attention to the design of non-standard fixtures to minimize the occurrence of adverse effects, reduce the frequency of remedial measures, ensure the functionality and simplicity of the equipment, and the non-standard fixtures can be made according to the size of the body. However, a wide range of operating conditions is required, and it is not recommended to use too many fixtures; automatic loading and unloading means that the material system is fully automated, with multiple monitoring and protection functions, which is stable and reliable. The computer monitors the operation of the entire system, and can accurately count material consumption. Raw materials enter the factory and enter the silo, and centralized loading saves space, reduces loading intervals, and improves labor efficiency. Through computer control, fine mixing of ingredients can be achieved, avoiding mismatching due to human factors, and improving product quality. The system adopts full closed-loop control, monitors the consumption of the main machine, and realizes the automatic control of feeding of any raw material to any main machine. The storage scale displays the current balance in real time to avoid waste of raw materials caused by material change, and seamlessly connects with the gram weight control system to display the current gram weight flow and consumption in real time, so as to keep abreast of production information. The communication between devices uses Ethernet communication connection, which has fast communication speed, fast software response speed, and no delay. Managers can grasp the production situation in the workshop in real time through remote monitoring; equipment cleaning should be safe and efficient.

[0031] The liquid nitrogen cryogenic pulverizer includes pulverizer material research, fully enclosed automated loading and unloading, and equipment cleaning. The process involves placing the material in a pre-cooling bin. Once the material reaches the set temperature, it is fed by a screw feeder into the main unit for pulverization. While the main unit is pulverizing, the liquid nitrogen continues to cool the main unit, keeping the temperature within the main unit constant. Once the material has been pulverized, the material, once it meets the required temperature, is fed by an induced draft fan into a primary cyclone separator, where it is then fed into a stainless steel drum. The silo is equipped with a breather valve to discharge exhaust gases for recycling into the main unit. During the pulverization process, the cooling system forms a closed-loop system, fully utilizing energy resources, saving energy and significantly reducing operating costs. The temperature in the pre-cooling bin and the main unit can drop to -196°C during pulverization. This temperature can be adjusted to the optimal temperature based on the material's catalytic point, minimizing unnecessary liquid nitrogen loss.

[0032] The microwave vacuum dryer includes microwave frequency and wavelength, temperature control, vacuum system, fully enclosed automated loading and unloading, and equipment cleaning. Powder enters the microwave vacuum dehydration dryer through a pipeline for sterilization and drying, and samples are taken for bacterial testing. Frequency is the number of periodic changes per unit time, describing the frequency of periodic motion, while wavelength refers to the distance a wave travels during one vibration cycle. Temperature control, as the name suggests, is achieved through a thermostat, which physically deforms the switch according to ambient temperature, producing certain special effects. The vacuum system uses a vacuum pump as a controller, employing an embedded human-machine control system using a PDM system. Microwave drying achieves effective drying results, while fully enclosed automated loading and unloading achieves effective vacuum sealing.

[0033] Mechanical automation connections include object conveying, bulk object adhesion research and equipment cleaning.

[0034] The cleaning system includes disinfection methods, cleaning methods and bacterial residue detection.

[0035] Software technologies include automated testing and self-regulating testing. Automated testing begins with creating a test environment, loading test data, establishing test prerequisites, executing the test, comparing and recording the results, and then, after the test is complete, clearing the test environment, deleting useless data, saving important data, and summarizing the test results. Self-regulating testing also involves creating a test environment, loading test data, establishing test prerequisites, executing the test, comparing and recording the results, analyzing failure causes, and reporting failures. Finally, after the test is complete, clearing the test environment, deleting useless data, saving important data, and summarizing the test results.

[0036] The process technology includes pre-cooling process, small-piece processing, low-temperature pulverization, low-temperature drying, and disinfection process; the pre-cooling process includes pre-cooling temperature and pre-cooling time, the plate temperature in the pre-cooling process can be empty, the vacuum pressure is controllable, and time control should also be considered. The small-piece processing includes cutting speed, cutting particle size, and cutting process. The cut body small pieces are transported to the liquid nitrogen deep low-temperature pulverization machine, using fully sealed conveying equipment, and can also be transferred using tooling fixtures to reduce the process flow; the low-temperature pulverization includes cavity temperature, operating time, and pulverization mesh size.

[0037] Low-temperature drying involves temperature research, vacuum research, sterilization rate research, and moisture content research. Materials enter the pre-cooling bin from the hopper, where a specialized dynamic pre-cooling method is used to cool the materials. Once they reach the catalytic point, they enter the main unit and begin crushing. The electrical control cabinet can display the temperature of each link to adjust the liquid nitrogen valve and reduce unnecessary losses. The materials are crushed by high-speed impact shearing between the movable blade and the fixed gear ring. The desired finished particle size is achieved through adjustment of the air valve and the main unit. After crushing, the finished materials are fed into a cyclone separator under negative pressure from an induced draft fan for material-gas separation, and the finished materials are discharged and collected. A portion of the cold air flows back into the main unit through a pipe as supplementary air volume, while another portion enters the pre-cooling bin as a cold source to cool the materials in the bin. If the main unit current is overloaded or the temperature inside the main unit rises abnormally during the crushing process, the electrical control unit is equipped with an automatic alarm to ensure long-term crushing.

[0038] The disinfection process includes disinfection methods, bacterial detection, and preservation methods.

[0039] Specific embodiment 2:

[0040] As shown in Figure 1, the program-controlled ultra-low temperature pulverization and drying device of the present invention is composed of three parts: product technology, software technology, and process technology. It is characterized in that: the product technology includes object freezing, water curtain separator, liquid nitrogen low-temperature crusher, microwave vacuum dryer, mechanical automation connection, and cleaning system; the object freezing includes cold storage equipment and capacity determination; the water curtain separator includes visual recognition, non-standard fixtures, automatic loading and unloading, and equipment cleaning. Its visual recognition includes a monitoring system that displays the process flow, the status of each device, and the process layout diagram in a graphical or image format; monitors the working status through I / O input and output fields, bar graphs, curves, data tables, etc.; the image of the video camera is integrated into the monitoring screen as a whole, and the monitoring screen is browsed on the client through a standard IE browser to reduce the project cost. The system also provides operation prompts, automatic blocking of erroneous operations, and other functions, and the screen switching speed is slow. The system also features automatic alarm and event handling. It can quickly detect and display corresponding alarm text based on screen status changes, and issue an audible alarm to alert monitoring personnel. The design of non-standard fixtures minimizes adverse effects and reduces the need for remedial measures, ensuring the equipment's functionality and aesthetics. Custom fixtures can be customized to suit a wide range of operating conditions; using too many fixtures is not recommended. The liquid nitrogen cryogenic pulverizer includes pulverizer material research, fully enclosed automated loading and unloading, and equipment cleaning. The process involves material entering a pre-cooling bin. Once it reaches the set temperature, it is fed by a screw feeder into the main unit for pulverization. While the main unit is pulverizing, the liquid nitrogen continues to cool the main unit, minimizing internal temperature increases. After pulverization, the material, which meets the required requirements, is fed into a primary cyclone separator using positive pressure from an induced draft fan and then into a stainless steel drum. The silo is equipped with a breather valve to allow exhaust gases to be recycled into the main unit. During the pulverization process, the cooling system forms a closed-loop system, fully utilizing energy, saving energy consumption, and significantly reducing operating costs. During crushing, the temperature in the pre-cooling bin and the main machine can be reduced to -196 degrees. It can be adjusted according to the catalytic point temperature of the material to select the optimal temperature and reduce unnecessary loss of liquid nitrogen.

[0041] The microwave vacuum dryer includes microwave frequency and wavelength, temperature control, vacuum system, fully enclosed automated loading and unloading, and equipment cleaning. Powder enters the microwave vacuum dehydration dryer through a pipeline for sterilization and drying, and samples are taken for bacterial testing. The mechanical automation connection includes object conveying, block adhesion research, and equipment cleaning. The cleaning system includes disinfection methods and cleaning agent research, as well as bacterial residue detection. The software technology includes automated operation testing and self-regulation testing. The process technology includes pre-cooling, fragmentation, low-temperature pulverization, low-temperature drying, and disinfection. The pre-cooling process includes pre-cooling temperature and time, while fragmentation includes cutting speed, cutting size, and cutting process. The fragmented pieces are then transported to a liquid nitrogen deep-cryogenic pulverization machine using fully enclosed conveying equipment, and fixtures can also be used for transfer to reduce process flow. Low-temperature pulverization includes chamber temperature, operating time, and pulverization mesh size. Low-temperature drying includes temperature, vacuum level, sterilization rate, and moisture content research. The disinfection process includes disinfection methods, bacterial testing, and storage methods.

[0042] Since the above is only a specific embodiment of the present invention, the protection of the present invention is not limited thereto, and any equivalent changes or substitutions of the technical features of the technical solution that can be thought of by technicians in this technical field are covered by the protection scope of the present invention.

Claims

1. A program-controlled ultra-low temperature pulverization and drying device, comprising three parts: product technology, software technology and process technology; characterized in that: Part 1: Product technologies include object freezing, water curtain separator, liquid nitrogen cryogenic pulverizer, microwave vacuum dryer, mechanical automation connection, and cleaning system; Part II: Software technology includes automated operation testing and self-regulation testing; Part 3: Process technology includes pre-cooling process, small-piece processing, low-temperature pulverization, low-temperature drying, and disinfection process.

2. A program-controlled ultra-low temperature pulverization and drying device according to claim 1, characterized in that: The object freezing in the product technology includes cold storage equipment and capacity determination. The cold storage equipment includes food, biological, artificial ice rink, post-supplement type, gas-controlled type, and three-dimensional automated cold storage; the capacity determination is adjusted according to specific needs; the water curtain separator in the product technology includes visual recognition, non-standard work fixtures, automatic loading and unloading, and equipment cleaning; the liquid nitrogen low-temperature crusher includes crusher material research, fully enclosed automatic loading and unloading, and equipment cleaning.

3. The program-controlled ultra-low temperature pulverization and drying device according to claim 2, characterized in that: The visual recognition includes the monitoring system visually displaying the process flow, the status of each equipment, and the process layout diagram in the form of graphics or images; monitoring the working conditions through I / O input and output fields, bar graphs, curves, and data tables.

4. The program-controlled ultra-low temperature pulverization and drying device according to claim 2, characterized in that: The specific working process steps of the liquid nitrogen cryogenic pulverizer are as follows: Step 1: Material crushing: The material enters the pre-cooling bin, and after reaching the set temperature, it is fed into the main machine by the screw feeder for crushing; Step 2: Liquid nitrogen cooling: Liquid nitrogen can continue to cool the host while the host is crushed, so that the temperature inside the host does not rise; during crushing, the temperature in the pre-cooling chamber and the host can drop to minus 196 degrees; Step 3: Feeding into the barrel: After the material is crushed by the main machine, the material that meets the requirements is fed into the primary cyclone separator by the positive pressure of the induced draft fan and enters the stainless steel barrel; Step 4: Recycling: The silo is equipped with a breathing valve to discharge the exhaust gas into the main engine for recycling.

5. The program-controlled ultra-low temperature pulverization and drying device according to claim 1, characterized in that: The microwave vacuum dryer includes microwave frequency and wavelength, temperature control mode, vacuum mode, fully enclosed automatic loading and unloading and equipment cleaning; when the powder enters the microwave vacuum dehydration dryer through a pipeline, it is sterilized and dried, and samples are taken for bacteria detection.

6. The program-controlled ultra-low temperature pulverization and drying device according to claim 1, characterized in that: The mechanical automation connection includes object conveying, block object adhesion research and equipment cleaning, and the cleaning system includes disinfection mode and cleaning mode as well as bacterial residue detection.

7. The program-controlled ultra-low temperature pulverization and drying device according to claim 1, characterized in that: The automated running test in the software technology includes the following contents: creating a test environment, loading test data, establishing test prerequisites, executing, comparing results, recording results, clearing the test environment after the test is completed, deleting useless data, saving important data, and summarizing test results; the self-regulating test includes the following contents: creating a test environment, loading test data, establishing test prerequisites, executing, comparing results, recording results, analyzing the cause of failure, fault reporting, clearing the test environment after the test is completed, deleting useless data, saving important data, and summarizing test results.

8. The program-controlled ultra-low temperature pulverization and drying device according to claim 1, characterized in that: The precooling process of the process technology includes precooling temperature and precooling time, and the plate layer temperature, vacuum pressure and time are controllable in the precooling process; the small-piece processing includes cutting speed, cutting particle size and cutting process, and the cut body small pieces are transported to a liquid nitrogen deep low-temperature pulverizing machine; the low-temperature pulverizing includes cavity temperature, operating time and pulverizing mesh size.

9. The program-controlled ultra-low temperature pulverization and drying device according to claim 1, characterized in that: The low-temperature drying includes temperature research, vacuum research, sterilization rate research, and water content research. The disinfection process includes disinfection method, bacteria detection, and preservation method.

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