Processing device and method for rapidly dehydrating and drying dried crabapples

Abstract

The invention discloses a processing device and method for rapidly dehydrating and drying dried crabapples, and belongs to the technical field of food processing.The processing device comprises a supporting frame and further comprises a freezing chamber, a low-pressure chamber, a dissociation assembly, an operation data acquisition module, a dissociation analysis unit, a dissociation judgment module, a drying analysis unit, a drying judgment module and a driving control module; the crabapples are frozen, moisture in the crabapples is sublimated in a vacuum mode, the drying period is shortened, and rapid drying is achieved; the condensation speed, the condensation thickness and the extraction power of water vapor in the extraction assembly can be monitored in real time, the water vapor extraction completion degree is dynamically judged, the drying end point is evaluated in a multi-dimensional mode in combination with the air pressure abnormal value, the crabapple volume shrinkage rate and the surface color change, it is ensured that the water content reaches the standard, quality is stable, and manual misjudgment is avoided; the water content reaches the standard and the quality is stable, so that the crab apple drying efficiency is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of food processing, and in particular relates to a processing device and method for rapidly dehydrating and drying dried crab apples. Background Art

[0002] Crab apple (also known as sand pear or sand pear) is a fruit grown in arid areas and has high nutritional value, including rich vitamin C, fiber and antioxidants. However, due to its high water content, crab apple is prone to rotting during storage and transportation.

[0003] Therefore, crab apples are often dried by removing moisture from them, greatly extending their shelf life. Dehydrated crab apples can be stored at room temperature for a long time, are not easily spoiled or rotted, and are convenient for storage and transportation. In the existing technology, natural air drying, hot air drying, and freeze drying are commonly used to make crab apples dried. Among them, freeze drying is a relatively advanced drying method. The crab apples are first frozen at low temperatures, and then the water is sublimated (directly from solid to gas) using a vacuum process. This process can maximize the preservation of the crab apple's nutrients, original flavor, and color.

[0004] However, during the freeze-drying process, since the freeze-drying method requires drying the sand apples in a vacuum environment, the drying end point needs to be manually judged. It is easy for operational errors to lead to premature cessation of drying, resulting in residual moisture, thereby reducing the efficiency of sand apple drying. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a processing device and method for rapidly dehydrating and drying dried crab apples, which solve the above problems.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a processing device for rapidly dehydrating and drying dried crab apples, comprising a support frame and further comprising:

[0007] A freezing chamber, wherein the freezing chamber is used to freeze the crab apples;

[0008] a low-pressure chamber, wherein the low-pressure chamber is used to dry the crab apples after being frozen in the freezing chamber;

[0009] An extraction component, the extraction component is used to extract the water vapor sublimated from the crab apple in the low-pressure chamber;

[0010] an operating data acquisition module, configured to acquire operating data of the extraction component; wherein the operating data includes a water vapor condensation rate, a condensation thickness of water vapor condensate, and an extraction power; the extraction power refers to the power used by the extraction component to extract water vapor from the low-pressure chamber;

[0011] An extraction analysis unit, for generating an extraction state index according to the condensation rate, the condensate thickness and the extraction power;

[0012] an extraction judgment module, configured to judge whether the extraction component has completed the extraction of water vapor in the low-pressure chamber according to an extraction state index;

[0013] A drying analysis unit, which is used to obtain status data of the low-pressure chamber and crab apple status data and generate a drying evaluation index if the extraction component has completed the extraction of water vapor in the low-pressure chamber;

[0014] A drying judgment module is used to judge whether the drying of the crab apples is completed according to the drying evaluation index;

[0015] The driving control module is used to stop the operation of the extraction component if the crab apple drying is in a completed state.

[0016] On the basis of the above technical solutions, the present invention also provides the following optional technical solutions:

[0017] Further technical solution: The freezing chamber specifically includes:

[0018] A freezer compartment shell, the freezer compartment shell being fixedly arranged on one side of the support frame;

[0019] A feed hatch, the feed hatch being slidably arranged on one side of the freezing chamber shell;

[0020] a drive motor, the drive motor being fixedly arranged on one side of the freezing chamber shell;

[0021] A discharge hatch door, the discharge hatch door being rotatably connected to the drive motor via a rotating shaft fixedly provided on the discharge hatch door;

[0022] A refrigeration component is fixedly arranged in the freezing chamber shell.

[0023] Further technical solution: The low-pressure chamber specifically includes:

[0024] A low-pressure chamber shell, the low-pressure chamber shell being arranged on one side of the freezing chamber shell and fixedly connected to the support frame;

[0025] a first sealing door, wherein the first sealing door is provided on the low-pressure chamber housing;

[0026] The second sealing door is slidably connected to the low-pressure chamber shell through a slide rail provided on the low-pressure chamber shell; the second sealing door and the discharge hatch door are on the same vertical line.

[0027] Further technical solution: The extraction component specifically includes:

[0028] An air pump, the air pump being arranged on one side of the low-pressure chamber and fixedly connected to the support frame; an input end of the air pump being connected to the low-pressure chamber through a first pipe;

[0029] A condenser is arranged on one side of the air pump, and an input end of the condenser is connected to an output end of the air pump through a second pipe.

[0030] Further technical solution: The extraction and analysis unit specifically includes:

[0031] Condensation rate analysis module, used to generate a condensation rate evaluation index based on the water vapor condensation rate;

[0032] A water vapor condensate condensation thickness analysis module is used to generate a condensation thickness evaluation index according to the water vapor condensate condensation thickness;

[0033] The extraction power analysis module is used to perform ratio processing on the extraction power and the maximum value of the standard power range to generate an extraction power evaluation index;

[0034] The standard power range refers to the normal power range when the extraction component is extracted to extract the water vapor in the low-pressure chamber.

[0035] Further technical solution: The condensation rate analysis module specifically includes:

[0036] a speed difference generating submodule for performing a difference processing on the water vapor condensation speed and the water vapor condensation speed threshold to generate a speed difference; the water vapor condensation speed threshold refers to the maximum value of the water vapor condensation speed when the extraction component completes the extraction of water vapor in the low-pressure chamber under standard working conditions;

[0037] A condensation speed evaluation index generation submodule is used to perform ratio processing on the speed difference and the water vapor freezing speed threshold to generate a condensation speed evaluation index;

[0038] The water vapor condensate condensation thickness analysis module specifically includes:

[0039] The thickness difference generation submodule is used to perform difference processing on the water vapor condensate condensation thickness and the water vapor condensate condensation thickness threshold to generate a thickness difference; the water vapor condensate condensation thickness threshold refers to the maximum value of the water vapor condensate condensation thickness that can appear without affecting the condensation of water vapor;

[0040] The condensation thickness evaluation index generation submodule is used to perform ratio processing on the thickness difference and the water vapor condensate condensation thickness threshold to generate a condensation thickness evaluation index.

[0041] Further technical solution: The determination method of the extraction determination module is specifically as follows:

[0042] comparing the withdrawal state index with a withdrawal state index threshold;

[0043] When the extraction state index is less than or equal to the extraction state index threshold, it is determined that the extraction component has completed the extraction of water vapor in the low-pressure chamber; if the extraction state index is smaller, the degree of completion of the extraction component's extraction of water vapor in the low-pressure chamber is higher.

[0044] Further technical solution: The drying analysis unit specifically includes:

[0045] A data acquisition module, when the extraction component has completed the extraction of water vapor in the low-pressure chamber, the data acquisition module is used to obtain the status data of the low-pressure chamber and the status data of the sand apple; wherein the status data of the low-pressure chamber includes the air pressure value; the status data of the sand apple includes the volume of the sand apple and the color value of the surface of the sand apple;

[0046] The air pressure analysis module is used to generate an air pressure anomaly index based on the air pressure value;

[0047] The volume analysis module is used to generate a sand apple volume evaluation index based on the sand apple volume;

[0048] Surface color analysis module, used to generate a surface color evaluation index based on the surface color value of the crab apple;

[0049] A dryness evaluation index generation module is used to generate a dryness evaluation index based on the air pressure anomaly index, the crab apple volume evaluation index and the surface color evaluation index;

[0050] The air pressure analysis module specifically includes:

[0051] The air pressure difference generation submodule is used to perform difference processing on the air pressure value and the air pressure setting value to generate the air pressure difference value;

[0052] The pressure difference is compared with the pressure setting value to generate the pressure anomaly index;

[0053] The volume analysis module specifically includes:

[0054] The volume difference generation submodule is used to perform difference processing between the volume of the crab apple and the volume threshold to generate a volume difference; the volume threshold refers to the volume of the crab apple after removing water;

[0055] The crab apple volume evaluation index generation submodule is used to perform ratio processing on the volume difference and the volume threshold to generate the crab apple volume evaluation index;

[0056] Wherein, the surface color analysis module specifically includes:

[0057] The surface color change analysis submodule is used to perform difference processing on the surface color value of the crab apple and the initial color value of the crab apple to generate a color change value;

[0058] A color change difference generation submodule is used to perform difference processing on the color difference change value and the change threshold value to generate a color change difference value;

[0059] The surface color evaluation index generation submodule is used to perform ratio processing on the color change difference and the change threshold to generate a surface color evaluation index; the change threshold refers to the minimum color change produced by the crab apple after standard freeze-drying treatment.

[0060] Further technical solution: The determination method of the drying determination module is specifically as follows:

[0061] comparing the dryness assessment index to a dryness assessment index threshold;

[0062] When the drying evaluation index is less than or equal to the drying evaluation index threshold, it is determined that the current sand apple drying work is in a completed state.

[0063] A method for rapidly dehydrating and drying dried crab apples is provided, which is applied to a device for rapidly dehydrating and drying dried crab apples. The method comprises the following steps:

[0064] placing crab apples into the freezing chamber;

[0065] Freezing the crab apples in the freezing chamber;

[0066] transporting the frozen crab apples in the freezing chamber to the extraction component;

[0067] Acquiring operating data of the extraction component; wherein the operating data includes water vapor condensation rate, water vapor condensate condensation thickness and extraction power; the extraction power refers to the power of the extraction component when extracting water vapor from the low-pressure chamber;

[0068] Generate an extraction state index based on the condensation rate, condensate thickness and extraction power;

[0069] judging, according to the extraction state index, whether the extraction component has completed the extraction of water vapor in the low-pressure chamber;

[0070] If the extraction component has completed the extraction of water vapor in the low-pressure chamber, the state data of the low-pressure chamber and the state data of the crab apple are obtained to generate a dryness assessment index;

[0071] According to the drying evaluation index, it is judged whether the drying work of the crab apple is completed;

[0072] If the crab apple drying is completed, the drive control module is used to stop the operation of the extraction component;

[0073] The crab apples that have completed the drying process in the extraction component are taken out and subjected to other treatments.

[0074] The present invention provides a processing device and method for rapidly dehydrating and drying dried crab apples, which have the following beneficial effects compared with the prior art:

[0075] The present invention shortens the drying cycle and achieves rapid drying by freezing the sand apples and vacuum sublimating the moisture in the sand apples. The present invention can also monitor the condensation rate, condensation thickness and extraction power of water vapor in the extraction component in real time, and combine the abnormal air pressure value, the volume shrinkage rate of the sand apples, and the surface color change to evaluate the drying end point in multiple dimensions, ensure that the moisture content meets the standard and the quality is stable, avoid human misjudgment, ensure that the moisture content meets the standard and the quality is stable, thereby improving the efficiency of sand apple drying. BRIEF DESCRIPTION OF THE DRAWINGS

[0076] Figure 1 A schematic diagram of the three-dimensional structure of a processing device for rapid dehydration and drying of dried crab apples provided in an embodiment of the present invention.

[0077] Figure 2 A schematic structural diagram of a pull-out assembly provided in an embodiment of the present invention.

[0078] Figure 3 A schematic structural diagram of a freezing chamber provided in an embodiment of the present invention.

[0079] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0080] Figure 5 A flowchart of a method for rapidly dehydrating and drying dried crab apples provided in an embodiment of the present invention.

[0081] Notes on figure numbers: 1. Support frame; 2. Freezer chamber; 3. Low-pressure chamber; 4. Extraction assembly; 201. Freezer chamber shell; 202. Inlet door; 203. Outlet door; 204. Drive motor; 205. Rotating shaft; 206. Refrigeration component; 301. Low-pressure chamber shell; 302. First sealing door; 303. Second sealing door; 401. Air pump; 402. Condenser. DETAILED DESCRIPTION

[0082] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0083] The specific implementation of the present invention is described in detail below with reference to specific embodiments.

[0084] See also Figure 1 and Figure 2 , a processing device for rapidly dehydrating and drying dried crab apples provided by one embodiment of the present invention, comprising a support frame 1, and further comprising:

[0085] A freezing chamber 2, wherein the freezing chamber 2 is used to freeze the crab apples;

[0086] A low-pressure chamber 3, wherein the low-pressure chamber 3 is used to dry the crab apples after being frozen in the freezing chamber 2;

[0087] An extraction component 4, the extraction component 4 is used to extract the water vapor sublimated by the crab apple in the low-pressure chamber 3;

[0088] an operating data acquisition module for acquiring operating data of the extraction component 4; wherein the operating data includes water vapor condensation rate, water vapor condensate condensation thickness, and extraction power; the extraction power refers to the power of the extraction component 4 when extracting water vapor in the low-pressure chamber 3;

[0089] An extraction analysis unit, for generating an extraction state index according to the condensation rate, the condensate thickness and the extraction power;

[0090] an extraction judgment module, for judging whether the extraction component 4 has completed the extraction of water vapor in the low-pressure chamber 3 according to an extraction state index;

[0091] A drying analysis unit, which is used to obtain status data of the low-pressure chamber 3 and crab apple status data and generate a drying evaluation index if the extraction component 4 has completed the extraction of water vapor in the low-pressure chamber 3;

[0092] A drying judgment module is used to judge whether the drying of the crab apples is completed according to the drying evaluation index;

[0093] The driving control module is used to stop the operation of the extraction component 4 if the crab apple drying is in a completed state.

[0094] See also Figure 1 、 Figure 3 and Figure 4 As a preferred embodiment of the present invention, the freezing chamber 2 specifically includes:

[0095] A freezer compartment housing 201, wherein the freezer compartment housing 201 is fixedly disposed on one side of the support frame 1;

[0096] A feed hatch 202, the feed hatch 202 being slidably disposed on one side of the freezing chamber housing 201;

[0097] A driving motor 204, wherein the driving motor 204 is fixedly disposed on one side of the freezing chamber housing 201;

[0098] A discharge hatch 203, wherein the discharge hatch 203 is rotatably connected to the drive motor 204 via a rotating shaft 205 fixedly provided on the discharge hatch 203;

[0099] A refrigeration component 206, wherein the refrigeration component 206 is fixedly disposed in the freezing chamber shell 201;

[0100] Specifically, by pushing the feed hatch 202, the feed hatch 202 performs linear motion on the freezing chamber shell 201, so that the crab apples enter the freezing chamber shell 201 through the opening of the feed hatch 202, and at the same time, the refrigeration element 206 is turned on to freeze the crab apples;

[0101] It should be explained that the target freezing temperature of sand apples is set by relevant personnel in this field. For example, the freezing temperature of sand apples is generally between -40 degrees Celsius and -50 degrees Celsius. The freezing temperature of sand apples can be set between -40 degrees Celsius and -50 degrees Celsius. This temperature will completely convert the water in the sand apples into solid ice, and help maintain the cell structure of the fruit stem, avoid the formation of overly large ice crystals when the water freezes, and thus prevent damage to the fruit tissue.

[0102] After the crab apples are frozen, the driving motor 204 is started, the driving motor 204 drives the rotating shaft 205 to rotate, and the rotating shaft 205 drives the discharge hatch 203 to rotate, so that the frozen crab apples fall downward due to gravity, and the frozen crab apples in the freezing chamber shell 201 are transported to the low-pressure chamber 3;

[0103] In this embodiment, after all the crab apples are placed in the freezing chamber shell 201, the feed hatch 202 is reset to reduce the effect of the external temperature on the internal temperature of the freezing chamber shell 201 and accelerate the freezing speed of the crab apples in the freezing chamber shell 201;

[0104] In addition, after the frozen crab apples in the freezing chamber shell 201 are transported to the low-pressure chamber 3 by gravity, the feed hatch 202 is reset to facilitate freezing the next batch of crab apples.

[0105] See also Figure 1 As a preferred embodiment of the present invention, the low-pressure chamber 3 specifically includes:

[0106] A low-pressure chamber shell 301, which is disposed on one side of the freezing chamber shell 201 and is fixedly connected to the support frame 1;

[0107] A first sealing door 302, which is provided on the low-pressure chamber housing 301;

[0108] A second sealing door 303, which is slidably connected to the low-pressure chamber shell 301 via a slide rail provided on the low-pressure chamber shell 301; the second sealing door 303 and the discharge hatch 203 are on the same vertical line;

[0109] Specifically, when the crab apples in the freezing chamber shell 201 are frozen, the second sealing door 303 is pushed to slide along the slide rail on the low-pressure chamber shell 301, so that the crab apples in the freezing chamber shell 201 fall into the low-pressure chamber shell 301 due to gravity;

[0110] After all the sand apples frozen in the freezing chamber shell 201 are transported to the low-pressure chamber shell 301, the second sealing door 303 is reset to maintain the sealing state of the low-pressure chamber shell 301, and the extraction component 4 is started at the same time to form a low-pressure environment in the low-pressure chamber shell 301, so that the ice crystals in the sand apples are directly sublimated into water vapor, and the water vapor in the low-pressure chamber shell 301 is extracted until the moisture content in the sand apples reaches the sand apple drying requirement.

[0111] See also Figure 2 As a preferred embodiment of the present invention, the extraction component 4 specifically includes:

[0112] An air pump 401 is provided on one side of the low-pressure chamber 3 and is fixedly connected to the support frame 1 ; an input end of the air pump 401 is connected to the low-pressure chamber 3 via a first pipe;

[0113] A condenser 402 is provided on one side of the air pump 401, and an input end of the condenser 402 is connected to an output end of the air pump 401 via a second pipe;

[0114] Specifically, by starting the air pump 401 to reduce the air pressure in the low-pressure chamber 3, the low air pressure in the low-pressure chamber 3 can cause the ice crystals in the sand apple to sublime into water vapor, and the water vapor is extracted and transported to the condenser 402 through the first pipe and the second pipe to convert the water vapor into liquid until the dryness of the sand apple meets the processing requirements.

[0115] As a preferred embodiment of the present invention, the extraction and analysis unit specifically includes:

[0116] Condensation rate analysis module, used to generate a condensation rate evaluation index based on the water vapor condensation rate;

[0117] A water vapor condensate condensation thickness analysis module is used to generate a condensation thickness evaluation index according to the water vapor condensate condensation thickness;

[0118] The extraction power analysis module is used to perform ratio processing on the extraction power and the maximum value of the standard power range to generate an extraction power evaluation index;

[0119] The standard power range refers to the normal power range when the extraction component 4 is extracted to extract the water vapor in the low-pressure chamber 3;

[0120] It should be noted that, when an abnormal situation such as gas leakage occurs in the extraction component 4, the extraction power refers to the extraction component 4 increasing the power when extracting the water vapor in the low-pressure chamber 3 to maintain the low-pressure environment in the low-pressure chamber 3;

[0121] An extraction state index generation module, used to generate an extraction state index according to a condensation speed evaluation index, a condensation thickness evaluation index, and an extraction power evaluation index;

[0122] The specific method for generating the withdrawal state index is as follows:

[0123] By formula:

[0124]

[0125] Generate the extraction state index C extraction ;

[0126] In the formula, S condensation It represents the condensation speed evaluation index, H condensation It represents the condensation thickness evaluation index, G extraction It represents the extraction power evaluation index.

[0127] As a preferred embodiment of the present invention, the condensation rate analysis module specifically includes:

[0128] a speed difference generating submodule for performing difference processing on the water vapor condensation speed and the water vapor condensation speed threshold to generate a speed difference; the water vapor condensation speed threshold refers to the maximum value of the water vapor condensation speed when the extraction component 4 completes the extraction of water vapor in the low-pressure chamber 3 under standard working conditions;

[0129] It should be explained that the water vapor condensation rate refers to the condensation rate of water vapor in the condenser 402;

[0130] A condensation speed evaluation index generation submodule is used to perform ratio processing on the speed difference and the water vapor freezing speed threshold to generate a condensation speed evaluation index;

[0131] The water vapor condensate condensation thickness analysis module specifically includes:

[0132] The thickness difference generation submodule is used to perform difference processing on the water vapor condensate condensation thickness and the water vapor condensate condensation thickness threshold to generate a thickness difference; the water vapor condensate condensation thickness threshold refers to the maximum value of the water vapor condensate condensation thickness that can appear without affecting the condensation of water vapor;

[0133] It should be explained that the condensation thickness of water vapor condensate refers to the thickness of the solid water vapor on the condensation plate in the condenser 402. When the gaseous water vapor is converted into liquid, it may be converted into solid due to the low temperature and adsorbed on the condensation plate.

[0134] The condensation thickness evaluation index generation submodule is used to perform ratio processing on the thickness difference and the water vapor condensate condensation thickness threshold to generate a condensation thickness evaluation index.

[0135] As a preferred embodiment of the present invention, the determination method of the extraction determination module is specifically as follows:

[0136] comparing the withdrawal state index with a withdrawal state index threshold;

[0137] It should be explained that the value of the withdrawal state index threshold is set by relevant personnel in this field;

[0138] When the extraction state index is less than or equal to the extraction state index threshold, it is determined that the extraction component 4 has completed the extraction of water vapor in the low-pressure chamber 3; the smaller the extraction state index, the higher the degree of completion of the extraction component 4 in extracting water vapor in the low-pressure chamber 3;

[0139] When the extraction state index is greater than the extraction state index threshold, it is determined that the extraction component 4 has not completed the extraction of water vapor in the low-pressure chamber 3; the larger the extraction state index, the lower the degree of completion of the extraction component 4 in extracting water vapor in the low-pressure chamber 3.

[0140] As a preferred embodiment of the present invention, the drying analysis unit specifically includes:

[0141] A data acquisition module, when the extraction component 4 has completed the extraction of water vapor in the low-pressure chamber 3, the data acquisition module is used to obtain the status data of the low-pressure chamber 3 and the status data of the sand apple; wherein the status data of the low-pressure chamber 3 includes the air pressure value; the status data of the sand apple includes the volume of the sand apple and the color value of the surface of the sand apple;

[0142] The air pressure analysis module is used to generate an air pressure anomaly index based on the air pressure value;

[0143] The volume analysis module is used to generate a sand apple volume evaluation index based on the sand apple volume;

[0144] Surface color analysis module, used to generate a surface color evaluation index based on the surface color value of the crab apple;

[0145] A dryness evaluation index generation module is used to generate a dryness evaluation index based on the air pressure anomaly index, the crab apple volume evaluation index and the surface color evaluation index;

[0146] The specific method for generating the dryness assessment index is as follows:

[0147] By formula:

[0148]

[0149] Generate dryness assessment index D completed ;

[0150] In the formula, V total It represents the crab apple volume evaluation index, C RGB It represents the surface color evaluation index, P deviation It represents the pressure anomaly index, α and β are weight coefficients, and α+β=1;

[0151] It should be explained that the values of α and β are set by relevant personnel in this field; in addition, the methods for determining their values include but are not limited to expert consultation method, etc.

[0152] As a preferred embodiment of the present invention, the air pressure analysis module specifically includes:

[0153] The air pressure difference generation submodule is used to perform difference processing on the air pressure value and the air pressure setting value to generate the air pressure difference value;

[0154] It should be explained that the air pressure setting value refers to the maximum air pressure value that ensures that ice crystals in the sand apple can sublime. Ice crystal sublimation requires a low-pressure environment.

[0155] The pressure difference is compared with the pressure setting value to generate the pressure anomaly index;

[0156] The volume analysis module specifically includes:

[0157] The volume difference generation submodule is used to perform difference processing between the volume of the crab apple and the volume threshold to generate a volume difference; the volume threshold refers to the volume of the crab apple after removing water;

[0158] It should be explained that the specific value of the volume threshold is set by relevant personnel in this field according to the drying requirements of the crab apple;

[0159] The crab apple volume evaluation index generation submodule is used to perform ratio processing on the volume difference and the volume threshold to generate the crab apple volume evaluation index;

[0160] Wherein, the surface color analysis module specifically includes:

[0161] The surface color change analysis submodule is used to perform difference processing on the surface color value of the crab apple and the initial color value of the crab apple to generate a color change value;

[0162] A color change difference generation submodule is used to perform difference processing on the color difference change value and the change threshold value to generate a color change difference value;

[0163] The surface color evaluation index generation submodule is used to perform ratio processing on the color change difference and the change threshold to generate a surface color evaluation index;

[0164] The change threshold refers to the minimum color change of crab apple after standard freeze-drying treatment.

[0165] As a preferred embodiment of the present invention, the determination method of the drying determination module is specifically as follows:

[0166] comparing the dryness assessment index to a dryness assessment index threshold;

[0167] It should be explained that the threshold value of the dryness assessment index is set by relevant personnel in this field;

[0168] When the drying evaluation index is less than or equal to the drying evaluation index threshold, it is determined that the drying work of the current crab apple is in a completed state; if the drying evaluation index is smaller, the water content of the current crab apple is lower, and the completion state of the drying work is better;

[0169] When the dryness evaluation index is greater than the dryness evaluation index threshold, it is determined that the current sand apple drying work is in an unfinished state; if the dryness evaluation index is larger, the current sand apple water content is higher and the completion state of the drying work is worse.

[0170] See also Figure 5 The present invention also provides a method for rapidly dehydrating and drying dried crab apples, which is applied to a processing device for rapidly dehydrating and drying the dried crab apples; the method comprises:

[0171] Step S1: placing crab apples into the freezing chamber 2;

[0172] Step S2: Freezing the crab apples in the freezing chamber 2;

[0173] Step S3: transporting the frozen crab apples in the freezing chamber 2 to the extraction component 4;

[0174] Step S4: Acquiring operating data of the extraction component 4; wherein the operating data includes water vapor condensation rate, water vapor condensate condensation thickness and extraction power; the extraction power refers to the power of the extraction component 4 when extracting water vapor in the low-pressure chamber 3;

[0175] Step S5: generating an extraction state index according to the condensation rate, the condensate thickness and the extraction power;

[0176] Step S6: judging whether the extraction component 4 has completed the extraction of water vapor in the low-pressure chamber 3 according to the extraction state index;

[0177] Step S7: If the extraction component 4 has completed the extraction of water vapor in the low-pressure chamber 3, the state data of the low-pressure chamber 3 and the state data of the crab apple are obtained to generate a dryness evaluation index;

[0178] Step S8: judging whether the drying of the crab apples is completed according to the drying evaluation index;

[0179] Step S9: If the crab apple drying is completed, the driving control module is used to stop the operation of the extraction component 4;

[0180] Step S10: taking out the dried crab apples in the extraction component 4 and performing other processing on them;

[0181] It should be explained that the crab apples that have completed the drying process in the extraction component 4 undergo other treatments including but not limited to secondary drying, processing and packaging.

[0182] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A processing device for rapidly dehydrating and drying dried crab apples, comprising a support frame (1), characterized in that: Also includes: A freezing chamber (2), wherein the freezing chamber (2) is used to freeze the crab apples; A low-pressure chamber (3), wherein the low-pressure chamber (3) is used to dry the crab apples after being frozen in the freezing chamber (2); An extraction component (4), the extraction component (4) is used to extract water vapor sublimated from the crab apple in the low-pressure chamber (3); An operating data acquisition module is used to acquire operating data of the extraction component (4); wherein the operating data includes water vapor condensation rate, water vapor condensate condensation thickness and extraction power; the extraction power refers to the power of the extraction component (4) when extracting water vapor in the low-pressure chamber (3); An extraction analysis unit, for generating an extraction state index according to the condensation rate, the condensate thickness and the extraction power; an extraction judgment module, for judging whether the extraction of water vapor in the low-pressure chamber (3) by the extraction component (4) is completed according to an extraction state index; A drying analysis unit, when the extraction component (4) has completed the extraction of water vapor in the low-pressure chamber (3), the drying analysis unit is used to obtain state data of the low-pressure chamber (3) and crab apple state data, and generate a drying evaluation index; A drying judgment module is used to judge whether the drying work of the crab apple is completed according to the drying evaluation index; A drive control module is used to stop the operation of the extraction component (4) if the crab apple drying is in a completed state.

2. The device for rapidly dehydrating and drying dried crab apple according to claim 1, wherein: The freezing chamber (2) specifically comprises: A freezing chamber shell (201), the freezing chamber shell (201) being fixedly arranged on one side of the support frame (1); a feed hatch (202), the feed hatch (202) being slidably disposed on one side of the freezing chamber shell (201); a driving motor (204), the driving motor (204) being fixedly arranged on one side of the freezing chamber shell (201); A discharge hatch door (203), the discharge hatch door (203) being rotationally connected to the drive motor (204) via a rotating shaft (205) fixedly inserted into the discharge hatch door (203); A refrigeration component (206), wherein the refrigeration component (206) is fixedly arranged in the freezing chamber shell (201).

3. The processing device for rapid dehydration and drying of dried crab apple according to claim 2, characterized in that: The low-pressure chamber (3) specifically comprises: A low-pressure chamber shell (301), the low-pressure chamber shell (301) being arranged on one side of the freezing chamber shell (201) and the low-pressure chamber shell (301) being fixedly connected to the support frame (1); a first sealing door (302), the first sealing door (302) being arranged on the low-pressure chamber housing (301); A second sealing door (303), the second sealing door (303) is slidably connected to the low-pressure chamber shell (301) through a slide rail provided on the low-pressure chamber shell (301); the second sealing door (303) and the discharge hatch door (203) are on the same vertical line.

4. The device for rapidly dehydrating and drying dried crab apple according to claim 1, wherein: The extraction component (4) specifically comprises: an air pump (401), the air pump (401) being arranged on one side of the low-pressure chamber (3), the air pump (401) being fixedly connected to the support frame (1); an input end of the air pump (401) being connected to the low-pressure chamber (3) via a first pipe; A condenser (402), the condenser (402) is arranged on one side of the air pump (401), and the input end of the condenser (402) is connected to the output end of the air pump (401) through a second pipe.

5. The device for rapidly dehydrating and drying dried crab apple according to claim 1, characterized in that: The extraction and analysis unit specifically includes: Condensation rate analysis module, used to generate a condensation rate evaluation index based on the water vapor condensation rate; A water vapor condensate condensation thickness analysis module is used to generate a condensation thickness evaluation index according to the water vapor condensate condensation thickness; The extraction power analysis module is used to perform ratio processing on the extraction power and the maximum value of the standard power range to generate an extraction power evaluation index; The standard power range refers to the normal power range when the extraction component (4) is extracted to extract the water vapor in the low-pressure chamber (3).

6. The device for rapidly dehydrating and drying dried crab apple according to claim 5, characterized in that: The condensation rate analysis module specifically includes: The speed difference generating submodule is used to perform difference processing on the water vapor condensation speed and the water vapor condensation speed threshold to generate a speed difference; the water vapor condensation speed threshold refers to the maximum value of the water vapor condensation speed when the extraction component (4) completes the extraction of water vapor in the low-pressure chamber (3) under standard working conditions; A condensation speed evaluation index generation submodule is used to perform ratio processing on the speed difference and the water vapor freezing speed threshold to generate a condensation speed evaluation index; The water vapor condensate condensation thickness analysis module specifically includes: The thickness difference generation submodule is used to perform difference processing on the water vapor condensate condensation thickness and the water vapor condensate condensation thickness threshold to generate a thickness difference; the water vapor condensate condensation thickness threshold refers to the maximum value of the water vapor condensate condensation thickness that can appear without affecting the condensation of water vapor; The condensation thickness evaluation index generation submodule is used to perform ratio processing on the thickness difference and the water vapor condensate condensation thickness threshold to generate a condensation thickness evaluation index.

7. The device for rapidly dehydrating and drying dried crab apple according to claim 5, characterized in that: The specific judgment method of the extraction judgment module is: comparing the withdrawal state index with a withdrawal state index threshold; When the extraction state index is less than or equal to the extraction state index threshold, it is determined that the extraction component (4) has completed the extraction of water vapor in the low-pressure chamber (3); the smaller the extraction state index, the higher the degree of completion of the extraction component (4) for extracting water vapor in the low-pressure chamber (3).

8. The device for rapidly dehydrating and drying dried crab apple according to claim 1, characterized in that: The drying analysis unit specifically includes: A data acquisition module, wherein if the extraction component (4) has completed the extraction of water vapor in the low-pressure chamber (3), the data acquisition module is used to obtain state data of the low-pressure chamber (3) and sand apple state data; wherein the state data of the low-pressure chamber (3) includes an air pressure value; and the sand apple state data includes a sand apple volume and a sand apple surface color value; The air pressure analysis module is used to generate an air pressure anomaly index based on the air pressure value; The volume analysis module is used to generate a sand apple volume evaluation index based on the sand apple volume; Surface color analysis module, used to generate a surface color evaluation index based on the surface color value of the crab apple; A dryness evaluation index generation module is used to generate a dryness evaluation index based on the air pressure anomaly index, the crab apple volume evaluation index and the surface color evaluation index; The air pressure analysis module specifically includes: The air pressure difference generation submodule is used to perform difference processing on the air pressure value and the air pressure setting value to generate the air pressure difference value; The pressure difference is compared with the pressure setting value to generate the pressure anomaly index; The volume analysis module specifically includes: The volume difference generation submodule is used to perform difference processing between the volume of the crab apple and the volume threshold to generate a volume difference; the volume threshold refers to the volume of the crab apple after removing water; The crab apple volume evaluation index generation submodule is used to perform ratio processing on the volume difference and the volume threshold to generate the crab apple volume evaluation index; Wherein, the surface color analysis module specifically includes: The surface color change analysis submodule is used to perform difference processing on the surface color value of the crab apple and the initial color value of the crab apple to generate a color change value; A color change difference generation submodule is used to perform difference processing on the color difference change value and the change threshold value to generate a color change difference value; The surface color evaluation index generation submodule is used to perform ratio processing on the color change difference and the change threshold to generate a surface color evaluation index; the change threshold refers to the minimum color change produced by the crab apple after standard freeze-drying treatment.

9. The device for rapidly dehydrating and drying dried crab apple according to claim 8, characterized in that: The determination method of the drying determination module is specifically as follows: comparing the dryness assessment index to a dryness assessment index threshold; When the drying evaluation index is less than or equal to the drying evaluation index threshold, it is determined that the current sand apple drying work is in a completed state.

10. A method for rapidly dehydrating and drying dried crab apples, applied to the apparatus for rapidly dehydrating and drying dried crab apples according to claims 1-9, characterized in that: The method comprises the following steps: Putting crab apples into the freezing chamber (2); Freezing the crab apples in the freezing chamber (2); transporting the frozen crab apples in the freezing chamber (2) to the extraction component (4); Acquiring operating data of the extraction component (4); wherein the operating data includes water vapor condensation rate, water vapor condensate condensation thickness and extraction power; the extraction power refers to the power of the extraction component (4) when extracting water vapor in the low-pressure chamber (3); Generate an extraction state index based on the condensation rate, condensate thickness and extraction power; judging whether the extraction component (4) has completed the extraction of water vapor in the low-pressure chamber (3) based on the extraction state index; If the extraction component (4) has completed the extraction of water vapor in the low-pressure chamber (3), the state data of the low-pressure chamber (3) and the state data of the crab apple are obtained to generate a dryness evaluation index; According to the drying evaluation index, it is judged whether the drying work of the crab apple is completed; If the crab apple drying is in a completed state, the driving control module is used to stop the operation of the extraction component (4); The crab apples that have completed the drying process in the extraction component (4) are taken out and subjected to other treatments.

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