Energy-saving stirring type vacuum deodorization device

Abstract

The invention provides an energy-saving stirring type vacuum deodorization device, which relates to the technical field of plastic processing, and comprises a stock bin, a plurality of groups of vacuum deodorization tanks, a cooling storage tank, a hot air conveying pipeline and a vacuum control pipeline, a discharge port of the vacuum deodorizing tank is communicated with the cooling storage tank through the finished product conveying pipeline, the hot air conveying pipeline and the vacuum control pipeline are both communicated with the vacuum deodorizing pipe tank, the hot air conveying pipeline is used for conveying air to the vacuum deodorizing tank and the cooling storage tank, and the vacuum control pipeline is used for controlling the cooling condition of the vacuum deodorizing tank. The device is used for deodorizing materials, through circulation of a heating condition and a vacuum condition, the heating time of the materials is shortened, raw materials are prevented from being decomposed in the deodorizing process, meanwhile, energy consumption needed by heat compensation is extremely low, the pressure difference between the inner surface area and the outer surface area of particles is created through the vacuum environment, the deodorizing efficiency is improved, and energy consumption is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of plastic processing, and particularly relates to an energy-saving stirring type vacuum deodorization and odor removal device. BACKGROUND

[0002] In the application of rubber or plastic materials to make final products, in many cases, it is necessary to reduce or eliminate some unpleasant odor or reduce volatile odor, especially in the recycling use of such materials, the odor will be stronger and more unacceptable, such as shampoo bottles made of recycled materials, automobile interior parts, etc., and the deodorization treatment in the plastic production process has become an important link in the industry.

[0003] The traditional hot air deodorization system often provides heated air for a long time to accelerate the volatilization of VOC or TOC of the material to achieve the purpose of deodorization and odor removal. As a poor conductor of heat, the substances (such as monomers or unintentional additives) to be volatilized are usually distributed inside the plastic rubber particles. Only by providing energy through heating can they move to the surface of the particles and then be diluted by air flow.

[0004] The existing vacuum deodorization device has the following problems:

[0005] 1. High energy consumption, uneven hot air, and low deodorization efficiency.

[0006] 2. The deodorization process needs to be heated constantly to reach the required temperature, resulting in great energy waste.

[0007] 3. The material is heated for too long in the deodorization process, and the material itself decomposes, releasing more volatile substances, which makes it impossible to achieve the deodorization effect. SUMMARY

[0008] The present application provides an energy-saving stirring type vacuum deodorization and odor removal device to solve at least one of the above technical problems.

[0009] In one aspect, the present application provides an energy-saving stirring type vacuum deodorization and odor removal device, which comprises a stock bin, a plurality of groups of vacuum deodorization tanks, a cooling storage tank, a hot air conveying pipeline and a vacuum control pipeline. The stock bin is connected to the inlet end of each group of vacuum deodorization tanks through a raw material conveying pipeline. The outlet of the vacuum deodorization tank is connected to the cooling storage tank through a finished product conveying pipeline. The hot air conveying pipeline and the vacuum control pipeline are connected to the vacuum deodorization tank. The hot air conveying pipeline is used to convey air to the vacuum deodorization tank and the cooling storage tank. The vacuum control pipeline is used to control the cooling of the vacuum deodorization tank.

[0010] Preferably, the upper top surface of the vacuum deodorization tank is fixedly connected with a stirring driver, a feeding hopper and a multifunctional sensor, the upper top surface of the vacuum deodorization tank is provided with a hot air outlet and a vacuum interface, the feeding hopper is in communication with a discharge end of a raw material conveying pipeline, the hot air outlet is in communication with a hot air conveying pipeline, a sealing valve one is arranged at the connection position of the hot air outlet and the hot air conveying pipeline, the vacuum interface is in communication with a vacuum pipeline, a sealing valve two is arranged at a discharge port of the vacuum deodorization tank, a hot air inlet is further arranged at the lower part of the vacuum deodorization tank, the hot air inlet is in communication with the hot air conveying pipeline, a spiral stirring device is arranged in the vacuum deodorization tank, the spiral stirring device is used for stirring the material, and the spiral stirring device is driven by the stirring driver.

[0011] Preferably, the hot air conveying pipeline comprises a first air conveying pipe section, a second air conveying pipe section and a third air conveying pipe section, an air inlet filter and an air inlet fan are arranged on the first air conveying pipe section, one end of the first air conveying pipe section is in communication with the atmosphere, the other end of the first air conveying pipe section is in communication with an air inlet arranged at the lower part of the cooling storage tank, one end of the second air conveying pipe section is in communication with an air outlet arranged at the upper part of the cooling storage tank, the other end of the second air conveying pipe section is in communication with a first air inlet of a heat exchanger, a dust collector and a high-temperature filter are arranged on the second air conveying pipe section, a first air outlet of the heat exchanger is in communication with an air inlet of an electric heater, an air outlet of the electric heater is in communication with the hot air inlet of the vacuum deodorization tank, one end of the third air conveying pipe section is in communication with the hot air outlet of the vacuum deodorization tank, the other end of the third air conveying pipe section is in communication with a second air inlet of the heat exchanger, and a second air outlet of the heat exchanger is in communication with a waste gas treatment pipeline.

[0012] Preferably, the vacuum control pipeline comprises a vacuum breaking valve, an exhaust pipeline, a vacuum exhaust valve, an oil-gas separation filter, a condensation cooler, a water vapor filter, a vacuum pump and a silencer filter, one end of the exhaust pipeline is in communication with the vacuum deodorization tank, the other end of the exhaust pipeline is in communication with the atmosphere, the vacuum breaking valve and the vacuum exhaust valve are arranged at the communication position of one end of the exhaust pipeline and the vacuum deodorization tank, the oil-gas separation filter, the condensation cooler, the water vapor filter, the vacuum pump and the silencer filter are sequentially arranged at one end of the exhaust pipeline in communication with the atmosphere.

[0013] Preferably, a negative pressure fan is arranged at the outlet of the waste gas treatment pipeline.

[0014] Preferably, a gas volatile organic compound detector or a total organic carbon content detector in water is further arranged between the condensation cooler and the water vapor filter.

[0015] Preferably, a microwave or resistance type online gas monitoring comparison instrument is further arranged at the communication position of the exhaust pipeline and the vacuum deodorization tank.

[0016] Preferably, the deodorization and deodorizing device further comprises a dust collection device, which comprises a connecting pipeline, a dust removal filter and a vortex fan, the raw material conveying pipeline and the finished product conveying pipeline are communicated with the connecting pipeline, the other end of the connecting pipeline is communicated with the air inlet of the dust removal filter, and the air outlet of the dust removal filter is communicated with the vortex fan.

[0017] Preferably, the working control system comprises:

[0018] The parameter collection module is used for collecting actual operation parameters of the deodorization device, and the actual operation parameters include actual inner cavity temperature of the vacuum deodorization tank, actual return air temperature at the air outlet of the vacuum deodorization tank, actual vacuum degree of the vacuum deodorization tank, actual heat preservation time of the vacuum deodorization tank, actual vacuum maintaining time of the vacuum deodorization tank and heating-vacuum cycle number of the raw material.

[0019] The parameter preset module is used for setting corresponding standard operation parameters according to the type of the raw material, and the standard operation parameters include standard inner cavity temperature of the vacuum deodorization tank, standard return air temperature at the air outlet of the vacuum deodorization tank, standard heat preservation time of the vacuum deodorization tank, standard vacuum degree of the vacuum deodorization tank, standard vacuum maintaining time of the vacuum deodorization tank and target heating-vacuum cycle number of the raw material.

[0020] The operation monitoring module is used for calling corresponding standard operation parameters according to the type of the raw material, and judging whether the difference between the actual operation parameters and the corresponding standard operation parameters exceeds the corresponding maximum allowable deviation value, and if the difference between the actual operation parameters and the corresponding standard operation parameters exceeds the corresponding maximum allowable deviation value, an alarm is given.

[0021] The termination judging module is used for judging whether to terminate the heating-vacuum cycle of the raw material.

[0022] The discharging control module is used for controlling the vacuum deodorization tank to discharge after the heating-vacuum cycle of the raw material is terminated.

[0023] Preferably, the termination judging module comprises:

[0024] The quality detection unit is used for obtaining a detection result of a quality detection instrument, and the quality detection instrument is any one of a gas volatile organic compound detector, a total organic carbon content detector in water and an online gas monitoring comparison instrument.

[0025] The first termination judging unit is used for judging whether the detection result of the quality detection instrument is lower than a first judgment threshold value preset for the type of the raw material, and when the detection result of the quality detection instrument is lower than the first judgment threshold value preset for the type of the raw material, a first termination command is given.

[0026] The second termination judging unit judges whether the detection result of the quality detection instrument is lower than the second judging threshold preset for the raw material type when the actual heating-vacuum cycle number of the raw material reaches the target heating-vacuum cycle number, the second judging threshold is higher than the first judging threshold, and the second termination command is sent when the detection result of the quality detection instrument is lower than the second judging threshold preset for the raw material type, otherwise the target heating-vacuum cycle number is increased by one, and the target heating-vacuum cycle number is modified to the original value after discharging in the vacuum deodorization tank;

[0027] The termination control unit terminates the heating-vacuum cycle of the raw material when receiving the first termination command or the second termination command.

[0028] The parameter correction unit acquires termination judging data of the last several groups of raw materials, the termination judging data includes the number of occurrences of the first termination command, the number of occurrences of the second termination command, and the number of corrections of the target heating-vacuum cycle number, and the original value of the target heating-vacuum cycle number is corrected when the triggering frequency of the first termination command is higher than the first adjustment threshold or the correction frequency of the target heating-vacuum cycle number is higher than the second adjustment threshold.

[0029] Compared with the prior art, the present application has the following beneficial effects:

[0030] The device is used for material deodorization, the heating time of the material is shortened through the cycle of heating conditions and vacuum conditions, decomposition of the raw material in the deodorization process is avoided, the energy consumption required for heat compensation is extremely low, only the energy loss after the hot air is extracted by vacuum is compensated, and the pressure difference between the inner and outer surface areas of the particles is created through the vacuum condition, almost no energy is consumed in the vacuum state, the deodorization efficiency is improved and the energy consumption is reduced, and the repeated pressure difference changes further improve the deodorization efficiency.

[0031] The energy-saving heating mode of combining the heat energy recovery from the raw material needing cooling and the heater with the heater is adopted, the energy loss is reduced, and the size of the air intake is automatically adjusted according to the detection of the return air temperature, thereby improving the energy utilization rate of the deodorization process. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the present application or 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 some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0033] Figure 1 It is a structural schematic diagram of the present application.

[0034] Reference signs:

[0035] 1, silo; 2, vacuum deodorization tank; 3, cooling storage tank; 4, hot air conveying pipeline; 401, first air conveying pipe section; 402, second air conveying pipe section; 403, third air conveying pipe section; 404, air inlet filter; 405, air inlet fan; 406, heat exchanger; 407, dust collector; 408, high-temperature filter; 409, electric heater; 410, waste gas treatment pipeline; 5, vacuum control pipeline; 501, vacuum breaking valve; 502, exhaust pipeline; 503, vacuum air extraction valve; 504, oil-gas separation filter; 505, condensation cooler; 506, water vapor filter; 507, vacuum pump; 508, silencer filter; 6, raw material conveying pipeline; 7, finished product conveying pipeline; 8, stirring driver; 9, feeding hopper; 10, multifunctional sensor; 11, sealing valve one; 12, sealing valve two; 13, spiral stirring device; 14, negative pressure fan; 15, connecting pipeline; 16, dust removal filter; 17, vortex fan. DETAILED DESCRIPTION

[0036] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the present application will be described clearly and completely below with reference to the drawings in the present application. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall into the protective scope of the present application.

[0037] In addition, the descriptions such as "first", "second" and the like in the present application are only for the purpose of description, and do not mean to particularly indicate the order or sequence, nor to limit the present application. They are merely used to distinguish components or operations described by the same technical terms, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions and technical features of various embodiments can be combined with each other, but it must be based on the realization of those of ordinary skill in the art. When the combination of technical solutions appears to be contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the protective scope of the present application.

[0038] Example 1

[0039] The embodiment of the present application provides an energy-saving stirring type vacuum deodorization device, which comprises a stock bin 1, a plurality of groups of vacuum deodorization tanks 2, a cooling storage tank 3, a hot air conveying pipeline 4 and a vacuum control pipeline 5, the stock bin 1 is connected with the feeding end of each group of vacuum deodorization tanks 2 through a raw material conveying pipeline 6, the discharge port of the vacuum deodorization tank 2 is connected with the cooling storage tank 3 through a finished product conveying pipeline 7, the hot air conveying pipeline 4 and the vacuum control pipeline 5 are both connected with the vacuum deodorization tank, the hot air conveying pipeline 4 is used for conveying air for the vacuum deodorization tank 2 and the cooling storage tank 3, and the vacuum control pipeline 5 is used for controlling the cooling condition of the vacuum deodorization tank 2.

[0040] Preferably, the upper top surface of the vacuum deodorization tank 2 is fixedly connected with a stirring driver 8, a feeding hopper 9 and a multifunctional sensor 10, the upper top surface of the vacuum deodorization tank 2 is provided with a hot air outlet and a vacuum interface, the feeding hopper 9 is connected with the discharge end of the raw material conveying pipeline 6, the hot air outlet is connected with the hot air conveying pipeline 4, a sealing valve one 11 is arranged at the connecting position of the hot air outlet and the hot air conveying pipeline 4, the vacuum interface is connected with the vacuum pipeline, a sealing valve two 12 is arranged on the discharge port of the vacuum deodorization tank 2, the lower part of the vacuum deodorization tank 2 is further provided with a hot air inlet, the hot air inlet is connected with the hot air conveying pipeline 4, and a spiral stirring device 13 is arranged in the vacuum deodorization tank 2, the spiral stirring device 13 is used for stirring the material, and the spiral stirring device 13 is driven by the stirring driver 8.

[0041] Preferably, the hot air conveying pipeline 4 comprises a first air conveying pipe section 401, a second air conveying pipe section 402 and a third air conveying pipe section 403, an air inlet filter 404 and an air inlet fan 405 are arranged on the first air conveying pipe section 401, one end of the first air conveying pipe section 401 is connected with the atmosphere, the other end of the first air conveying pipe section 401 is connected with an air inlet located at the lower part of the cooling storage tank 3, one end of the second air conveying pipe section 402 is connected with an air outlet located at the upper part of the cooling storage tank 3, the other end of the second air conveying pipe section 402 is connected with a first air inlet of a heat exchanger 406, a dust collector 407 and a high-temperature filter 408 are arranged on the second air conveying pipe section 402, a first air outlet of the heat exchanger 406 is connected with an air inlet of an electric heater 409, an air outlet of the electric heater 409 is connected with the hot air inlet of the vacuum deodorization tank 2, one end of the third air conveying pipe section 403 is connected with the hot air outlet of the vacuum deodorization tank 2, the other end of the third air conveying pipe section 403 is connected with a second air inlet of the heat exchanger 406, and a second air outlet of the heat exchanger 406 is connected with a waste gas treatment pipeline 410.

[0042] Preferably, the vacuum control pipeline 5 comprises a vacuum breaking valve 501, an exhaust pipeline 502, a vacuum exhaust valve 503, an oil-gas separation filter 504, a condensation cooler 505, a water vapor filter 506, a vacuum pump 507 and a silencer filter 508. One end of the exhaust pipeline 502 is in communication with the vacuum deodorization tank 2, and the other end of the exhaust pipeline 502 is in communication with the atmosphere. The vacuum breaking valve 501 and the vacuum valve are installed at the communication position of one end of the exhaust pipeline 502 and the vacuum deodorization tank 2. The oil-gas separation filter 504, the condensation cooler 505, the water vapor filter 506, the vacuum pump 507 and the silencer filter 508 are sequentially installed at the end of the exhaust pipeline 502 in communication with the atmosphere.

[0043] In the embodiment, the raw material conveying pipeline 6 uses any one of a high-pressure fan, a vortex fan or a Roots blower for raw material conveying.

[0044] The working principle and beneficial effects of the above technical solution are as follows:

[0045] The raw material to be deodorized is conveyed into the vacuum deodorization tank 2 through the raw material conveying pipeline 6, and then air heated to a preset temperature is introduced into the vacuum deodorization tank 2 through the hot air inlet of the vacuum deodorization tank 2 to heat the raw material through the hot air introduction method from bottom to top and the low-speed stirring of the raw material by the spiral stirring device 13, so that the target object is heated more uniformly, and the volatilization of small-molecule volatile substances is more efficient. When the return air temperature of the vacuum deodorization tank 2 detected by the multifunctional sensor 10 reaches the preset process temperature, the hot air conveying pipeline 4 is closed, and the vacuum exhaust valve 503 is opened to exhaust the air inside the vacuum deodorization tank 2. The vacuum degree in the vacuum deodorization tank 2 is monitored in real time by the multifunctional sensor 10 until the preset vacuum degree target is reached. The vacuum degree inside the vacuum deodorization tank 2 is maintained at the vacuum degree target value for a certain period of time. Then, the vacuum exhaust valve 503 is closed, and the vacuum breaking valve 501 is opened. New clean air is introduced into the vacuum deodorization tank 2 to heat the raw material again. In the vacuum environment, a certain vapor pressure difference is formed inside and on the surface of the raw material particles, which accelerates the removal of small-molecule substances or water molecules that are easy to volatilize, and improves the deodorization efficiency. After the water vaporizes, it is quickly exhausted together with the air. At the same time, the low-temperature rapid drying of the material is completed. Clean hot air enters the heated raw material to restore the temperature, and at the same time, the internal and external pressures of the raw material particles are balanced. After reaching the preset temperature and maintaining for a specified period of time, the vacuum deodorization and drying process is performed again. Through the repeated clean air heating and pressure balancing, the repeated vacuum pressure difference can realize a rapid deodorization and deodorization process. The deodorization is performed through the heating method with multiple frequencies and short heating time, which avoids the phenomenon of high-temperature hydrolysis that damages the mechanical properties of the raw material, thereby realizing effective drying of the raw material and maintaining the minimum loss of the mechanical properties of the material.

[0046] When the outside air is sucked, the outside air is first sucked into the first air conveying pipe section 401 through the air inlet filter 404 by the air inlet fan 405, and is conveyed to the air inlet in the lower part of the cooling storage tank 3, and is passed from bottom to top through the raw materials to be cooled, and the raw materials are cooled while the outside air is preheated for the first time. The preheated air enters the second air conveying pipe section 402 and is conveyed to the heat exchanger 406 to exchange heat with the exhaust gas discharged from the vacuum deodorization tank 2, so as to realize the second preheating of the air. The air preheated for the second time is sent into the electric heater 409 and heated to a specified temperature, and then conveyed into the vacuum deodorization tank 2 to heat the raw materials to be deodorized. The hot air discharged from the vacuum deodorization tank 2 is conveyed to the heat exchanger 406 through the third air conveying pipe section 403, and the clean air is preheated and discharged into the exhaust gas treatment pipeline 410. The hot air source is recycled twice, which reduces the energy loss in the deodorization process and improves the energy utilization rate.

[0047] Embodiment 2

[0048] On the basis of embodiment 1, a negative pressure fan 14 is installed at the outlet of the exhaust gas treatment pipeline 410.

[0049] The working principle and beneficial effects of the above technical solution are:

[0050] By dynamically adjusting the rotating speed of the air inlet fan 405 to change the air inlet rate, the vacuum pipe is continuously de-volatilized and deodorized under the alternating state of continuous hot air and certain semi-vacuum negative pressure and positive pressure, and the deodorization efficiency of the raw materials is further improved.

[0051] Embodiment 3

[0052] On the basis of embodiment 1, a gas volatile organic compound detector or a total organic carbon content detector in water is further installed between the condenser cooler 505 and the water vapor filter 506.

[0053] The working principle and beneficial effects of the above technical solution are:

[0054] By installing the gas volatile organic compound detector or the total organic carbon content detector in water between the condenser cooler 505 and the water vapor filter 506, the processing quality can be detected online by comparing the detected value with the preset sample target parameter, so that the processing time can be avoided for too long, the deodorization efficiency is improved, and the deodorization cost is reduced.

[0055] Embodiment 4

[0056] On the basis of embodiment 1, a microwave or resistance type online gas monitoring comparison instrument is further arranged at the communication part of the exhaust pipeline 502 and the vacuum deodorization tank 2.

[0057] The working principle and beneficial effects of the above technical solution are:

[0058] By using the online gas monitoring comparison instrument of the microwave or resistance type, the actual processing condition is monitored by comparison, so as to ensure that high-precision detection values are obtained in the area with large air volume, low concentration and high temperature, reduce the error of the detection result caused by the influence of dust, temperature and air pressure, adjust the production process parameters based on the detection result, improve the timeliness of parameter adjustment, improve the deodorization efficiency and reduce the deodorization cost.

[0059] Embodiment 5

[0060] On the basis of embodiment 1, the deodorization device further comprises a dust collection device, the dust collection device comprising: a connecting pipeline 15, a dust removal filter 16 and a vortex fan, the material conveying pipeline 6 and the discharge end of the finished product conveying pipeline 7 are both communicated with the connecting pipeline 15, the other end of the connecting pipeline 15 is communicated with the air inlet of the dust removal filter 16, and the air outlet of the dust removal filter 16 is communicated with the vortex fan 17.

[0061] The working principle and beneficial effects of the above technical solution are as follows:

[0062] By collecting the dust in the air after contacting with the raw material, it is avoided that the dust carried in the air enters the heater to pollute the inside of the heater, the probability of combustion of the dust under the high temperature condition of the heater is reduced, and the dust is avoided from being discharged into the atmosphere, so that the purpose of protecting the environment is achieved.

[0063] Embodiment 6

[0064] On the basis of embodiment 3 or 4, a working control system is further included, and the working control system comprises:

[0065] a parameter collection module, configured to collect actual operation parameters of the deodorization device, the actual operation parameters comprising: actual inner cavity temperature of the vacuum deodorization tank 2, actual return air temperature at the air outlet of the vacuum deodorization tank 2, actual vacuum degree of the vacuum deodorization tank 2, actual heat preservation time of the vacuum deodorization tank 2, actual vacuum maintaining time of the vacuum deodorization tank 2, and heating-vacuum cycle number of the raw material;

[0066] a parameter preset module, configured to set corresponding standard operation parameters according to the type of the raw material, the standard operation parameters comprising: standard inner cavity temperature of the vacuum deodorization tank 2, standard return air temperature at the air outlet of the vacuum deodorization tank 2, standard heat preservation time of the vacuum deodorization tank 2, standard vacuum degree of the vacuum deodorization tank 2, standard vacuum maintaining time of the vacuum deodorization tank 2, and target heating-vacuum cycle number of the raw material;

[0067] The running monitoring module retrieves corresponding standard running parameters according to the type of the raw material, and judges whether the difference between the actual running parameters and the corresponding standard running parameters exceeds the corresponding maximum allowable deviation value, and if the difference between the actual running parameters and the corresponding standard running parameters exceeds the corresponding maximum allowable deviation value, an alarm is given;

[0068] The termination judging module is configured to judge whether to terminate the heating-vacuum circulation of the raw material.

[0069] The discharging control module is configured to control the vacuum deodorization tank 2 to discharge after the heating-vacuum circulation of the raw material is terminated.

[0070] Preferably, the termination judging module comprises:

[0071] The quality detection unit is configured to obtain a detection result of a quality detection instrument, which is any one of a gas volatile organic compound detector, a total organic carbon content detector in water, and an online gas monitoring comparison instrument.

[0072] The first termination judging unit is configured to judge whether the detection result of the quality detection instrument is lower than a first judgment threshold value preset for the type of the raw material, and when the detection result of the quality detection instrument is lower than the first judgment threshold value preset for the type of the raw material, a first termination command is issued.

[0073] The second termination judging unit is configured to judge whether the detection result of the quality detection instrument is lower than a second judgment threshold value preset for the type of the raw material when the actual heating-vacuum circulation number of the raw material reaches a target heating-vacuum circulation number, the second judgment threshold value being higher than the first judgment threshold value, and when the detection result of the quality detection instrument is lower than the second judgment threshold value preset for the type of the raw material, a second termination command is issued, otherwise the target heating-vacuum circulation number is increased by one, and after the vacuum deodorization tank 2 discharges, the target heating-vacuum circulation number is modified to an original value.

[0074] The termination control unit is configured to terminate the heating-vacuum circulation of the raw material when the first termination command or the second termination command is received.

[0075] The parameter correction unit is configured to obtain termination judging data of the last several groups of raw material, the termination judging data comprising the number of occurrences of the first termination command, the number of occurrences of the second termination command, and the number of corrections of the target heating-vacuum circulation number, and when the triggering frequency of the first termination command is higher than a first adjustment threshold value or the correction frequency of the target heating-vacuum circulation number is higher than a second adjustment threshold value, the original value of the target heating-vacuum circulation number is corrected.

[0076] Preferably, the termination judgment module further comprises a time length adjustment unit, which is configured to adjust the standard vacuum holding time after the adjustment of the heating-vacuum cycle number, and modify the standard vacuum holding time to the original value after the vacuum deodorization tank 2 is discharged;

[0077] The adjustment target value of the standard vacuum holding time is calculated based on the following formula:

[0078] wherein, T m is the adjustment target value of the standard vacuum holding time; T c is the original value of the standard vacuum holding time; N is the heating-vacuum cycle number of the raw material; C1 is the detection result of the quality detection instrument after the raw material completes the first heating-vacuum cycle; C s is the detection result of the quality detection instrument after the raw material completes the last heating-vacuum cycle; C y2 is the second judgment threshold.

[0079] In the embodiment, the vacuum-heating cycle number of the raw material refers to the cycle number of the heating process and the vacuum process experienced by the raw material, and one cycle number includes one heating process and one vacuum process.

[0080] In the embodiment, the vacuum holding time of the vacuum deodorization tank 2 refers to the single duration after the vacuum deodorization pipe reaches the specified vacuum degree.

[0081] In the embodiment, the correction frequency of the target heating-vacuum cycle number refers to the proportion of the execution number of the second termination command that has been corrected in the target heating-vacuum cycle number to the total execution number of the second termination command.

[0082] The working principle and beneficial effects of the above technical solution are as follows:

[0083] Through the cooperation of the parameter collection module and the parameter preset module, the system can retrieve the corresponding standard operating parameters according to the characteristics of different raw materials and monitor the operating parameters in real time, ensuring the accuracy and consistency of the deodorization process. The alarm function of the operation monitoring module can prompt the deviation in time, avoiding quality problems caused by abnormal parameters.

[0084] The termination judgment module combines the real-time data of the quality detection instrument to dynamically judge the termination of the raw material deodorization through double threshold judgment (the first termination command and the second termination command), which not only ensures the stability of the deodorization effect, but also avoids the decline of the physical properties of the raw material caused by excessive processing. The parameter correction unit further optimizes the standard parameters through historical data to improve the adaptability of long-term operation.

[0085] By adjusting the standard vacuum holding time, the vacuum holding time in the added first heating-vacuum cycle is matched with the actual deodorization effect of the raw material, so that the stability of the deodorization effect is further maintained, and the decline of the physical properties of the raw material caused by excessive treatment is avoided.

[0086] Finally, it should be noted that: the above examples are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing examples, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing examples, or make equivalent replacement for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An energy-saving stirring-type vacuum deodorization and odor removal device, characterized in that, It includes a silo (1), several sets of vacuum deodorizing tanks (2), a cooling storage tank (3), a hot air conveying pipeline (4), and a vacuum control pipeline (5). The silo (1) is connected to the feed end of each set of vacuum deodorizing tanks (2) through the raw material conveying pipeline (6). The discharge port of the vacuum deodorizing tank (2) is connected to the cooling storage tank (3) through the finished product conveying pipeline (7). The hot air conveying pipeline (4) and the vacuum control pipeline (5) are both connected to the vacuum deodorizing tanks. The hot air conveying pipeline (4) is used to convey air to the vacuum deodorizing tanks (2) and the cooling storage tanks (3). The vacuum control pipeline (5) is used to control the cooling of the vacuum deodorizing tanks (2).

2. The energy-saving stirring-type vacuum deodorization and odor removal device according to claim 1, characterized in that, The vacuum deodorizing tank (2) is fixedly connected to the top surface of the stirring driver (8), the feeding hopper (9) and the multi-functional sensor (10). The top surface of the vacuum deodorizing tank (2) is provided with a hot air outlet and a vacuum interface. The feeding hopper (9) is connected to the discharge end of the raw material conveying pipeline (6). The hot air outlet is connected to the hot air conveying pipeline (4). A sealing valve one (11) is provided at the connection between the hot air outlet and the hot air conveying pipeline (4). The vacuum interface is connected to the vacuum pipeline. A sealing valve two (12) is installed at the discharge port of the vacuum deodorizing tank (2). A hot air inlet is also provided at the bottom of the vacuum deodorizing tank (2). The hot air inlet is connected to the hot air conveying pipeline (4). A spiral stirring device (13) is installed inside the vacuum deodorizing tank (2). The spiral stirring device (13) is used to stir the material. The spiral stirring device (13) is driven by the stirring driver (8).

3. The energy-saving stirring-type vacuum deodorization and odor removal device according to claim 1, characterized in that, The hot air delivery pipeline (4) includes: a first air delivery pipe section (401), a second air delivery pipe section (402), and a third air delivery pipe section (403). An air intake filter (404) and an air intake fan (405) are installed on the first air delivery pipe section (401). One end of the first air delivery pipe section (401) is connected to the atmosphere, and the other end is connected to an air inlet located at the bottom of the cooling storage tank (3). One end of the second air delivery pipe section (402) is connected to an air outlet located at the top of the cooling storage tank (3), and the other end is connected to a heat exchanger (406). The first air inlet is connected, and a dust collector (407) and a high-temperature filter (408) are installed on the second air duct section (402). The first air outlet of the heat exchanger (406) is connected to the air inlet of the electric heater (409). The air outlet of the electric heater (409) is connected to the hot air inlet of the vacuum deodorizing tank (2). One end of the third air duct section (403) is connected to the hot air outlet of the vacuum deodorizing tank (2). The other end of the third air duct section (403) is connected to the second air inlet of the heat exchanger (406). The second air outlet of the heat exchanger (406) is connected to the exhaust gas treatment pipeline (410).

4. The energy-saving stirring-type vacuum deodorization and odor removal device according to claim 3, characterized in that, The vacuum control pipeline (5) includes a vacuum breaking valve (501), an exhaust pipeline (502), a vacuum extraction valve (503), an oil-gas separator filter (504), a condenser cooler (505), a water vapor filter (506), a vacuum pump (507), and a silencer filter (508). One end of the exhaust pipeline (502) is connected to the vacuum deodorizing tank (2), and the other end of the exhaust pipeline (502) is connected to the atmosphere. The vacuum breaking valve (501) and the vacuum valve are installed at the connection between one end of the exhaust pipeline (502) and the vacuum deodorizing tank (2). The oil-gas separator filter (504), the condenser cooler (505), the water vapor filter (506), the vacuum pump (507), and the silencer filter (508) are installed sequentially at the end of the exhaust pipeline (502) that is connected to the atmosphere.

5. The energy-saving stirring-type vacuum deodorization and odor removal device according to claim 4, characterized in that, A negative pressure fan (14) is installed at the outlet of the exhaust gas treatment pipeline (410).

6. The energy-saving stirring-type vacuum deodorization and odor removal device according to claim 4, characterized in that, A gas volatile organic compound detector or a total organic carbon content detector in water is also installed between the condenser (505) and the water vapor filter (506).

7. The energy-saving stirring-type vacuum deodorization and odor removal device according to claim 4, characterized in that, A microwave or resistance type online gas monitoring and comparison instrument is also installed at the connection point between the exhaust pipe (502) and the vacuum deodorization tank (2).

8. The energy-saving stirring-type vacuum deodorization and odor removal device according to claim 1, characterized in that, The deodorization and deodorization device also includes a dust collection device, which includes a connecting pipe (15), a dust filter (16), and a vortex blower. The discharge ends of the raw material conveying pipe (6) and the finished product conveying pipe (7) are connected to the connecting pipe (15). The other end of the connecting pipe (15) is connected to the air inlet of the dust filter (16), and the air outlet of the dust filter (16) is connected to the vortex blower (17).

9. An energy-saving stirring-type vacuum deodorization and odor removal device according to claim 6 or claim 7, characterized in that, It also includes a work control system, which includes: The parameter collection module is used to collect the actual operating parameters of the deodorization device. The actual operating parameters include: the actual internal temperature of the vacuum deodorization tank (2), the actual return air temperature at the air outlet of the vacuum deodorization tank (2), the actual vacuum degree of the vacuum deodorization tank (2), the actual heat preservation time of the vacuum deodorization tank (2), the actual vacuum holding time of the vacuum deodorization tank (2), and the number of heating-vacuum cycles of the raw material. The parameter preset module is used to set the corresponding standard operating parameters according to the type of raw material. The standard operating parameters include: the standard internal temperature of the vacuum deodorizing tank (2), the standard return air temperature at the air outlet of the vacuum deodorizing tank (2), the standard heat preservation time of the vacuum deodorizing tank (2), the standard vacuum degree of the vacuum deodorizing tank (2), the standard vacuum holding time of the vacuum deodorizing tank (2), and the target heating-vacuum cycle number of raw materials. The operation monitoring module retrieves the corresponding standard operating parameters based on the type of raw material and determines whether the difference between the actual operating parameters and the corresponding standard operating parameters exceeds the corresponding maximum allowable deviation value. If the difference between the actual operating parameters and the corresponding standard operating parameters exceeds the corresponding maximum allowable deviation value, an alarm is triggered. The termination judgment module is used to determine whether to terminate the heating-vacuum cycle of the raw material; The discharge control module controls the vacuum deodorization tank (2) to discharge materials after the heating-vacuum cycle of the raw materials is terminated.

10. An energy-saving stirring-type vacuum deodorization and odor removal device according to claim 9, characterized in that, The termination judgment module includes: The quality detection unit is used to obtain the detection results of the quality detection instrument, which is any one of the following: a gas volatile organic compound detector, a total organic carbon content detector in water, and an online gas monitoring and comparison instrument. The first termination judgment unit is used to determine whether the detection result of the quality testing instrument is lower than the first judgment threshold preset for the corresponding raw material type. When the detection result of the quality testing instrument is lower than the first judgment threshold preset for the corresponding raw material type, a first termination command is issued. The second termination judgment unit determines whether the detection result of the quality detection instrument is lower than the second judgment threshold preset for the corresponding raw material type after the actual heating-vacuum cycle number of the raw material reaches the target heating-vacuum cycle number. If the second judgment threshold is higher than the first judgment threshold, the second termination command is issued when the detection result of the quality detection instrument is lower than the second judgment threshold preset for the corresponding raw material type. Otherwise, the target heating-vacuum cycle number is incremented by one. After the material is discharged from the vacuum deodorization tank (2), the target heating-vacuum cycle number is modified to the original value. The termination control unit terminates the heating-vacuum cycle of the raw material upon receiving a first or second termination command. The parameter correction unit acquires the termination judgment data of the last few sets of raw materials. The termination judgment data includes: the number of times the first termination command appears, the number of times the second termination command appears, and the number of corrections for the target heating-vacuum cycle number. When the triggering frequency of the first termination command is higher than the preset first adjustment threshold or the correction frequency of the target heating-vacuum cycle number is higher than the preset second adjustment threshold, the original value of the target heating-vacuum cycle number is corrected.

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