CN210841486U - Energy-saving environment-friendly peeling and color protecting device - Google Patents
Energy-saving environment-friendly peeling and color protecting device Download PDFInfo
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- CN210841486U CN210841486U CN201920933017.0U CN201920933017U CN210841486U CN 210841486 U CN210841486 U CN 210841486U CN 201920933017 U CN201920933017 U CN 201920933017U CN 210841486 U CN210841486 U CN 210841486U
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Abstract
The utility model provides an energy-concerving and environment-protective type is peeld and is protected look device, this equipment belongs to a green economizer, and it includes: the device comprises a refrigeration unit, a freezing unit, a high-pressure washing and peeling mechanism and a color protection subsystem; the refrigerating unit is used for refrigerating the nitrogen to a set temperature; the freezer unit includes a freezer container for containing nut kernels, the freezer container including an air inlet and an air outlet; the low-temperature nitrogen obtained after refrigeration by the refrigeration unit is introduced into the freezing container through a pipeline and an air inlet and is used for freezing the nut kernels; the color protection subsystem is used for performing color protection treatment on the nut kernels with the inner skins removed. The consumption of the nut kernel additive treated by the method is greatly reduced, the nut kernels are healthier, and the production process is more energy-saving and environment-friendly.
Description
Technical Field
The utility model belongs to the technical field of the nut processing technique and specifically relates to a look device is peeld and protects to energy-concerving and environment-protective type.
Background
In the existing nut processing methods such as walnut, hazelnut, pine nut and the like, the inner skin of the nut is usually removed, and then color protection treatment is carried out. The existing endothelial removing process mostly adopts an ice water soaking method, and the color protection treatment needs to soak the nut kernels with the endothelial removed in a color protection solvent. The method has a plurality of disadvantages, such as the increase of water content of the soaked nut kernels, the difficulty and the cost of the later drying treatment are increased, and the efficiency is reduced.
Meanwhile, the nutrition of the soaked nut kernels is low in loss in different degrees, the color fixative is used in an excessive amount, the adhesion amount of the color fixative on each nut kernel is excessive, the taste is influenced, and meanwhile, the food additive is deposited on the nut kernels too much, so that the health is not facilitated.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an energy-concerving and environment-protective type is peeld and is protected look device to solve foretell at least one technical problem who exists among the prior art. The consumption of the nut kernel additive treated by the method is greatly reduced, the nut kernels are healthier, and the production process is more energy-saving and environment-friendly.
In order to solve the technical problem, the utility model provides a pair of look device is peeld to energy-concerving and environment-protective type, include: the device comprises a refrigeration unit, a freezing unit, a high-pressure washing and peeling mechanism and a color protection subsystem;
the refrigerating unit is used for refrigerating the nitrogen to a set temperature (for example, -15-30 ℃);
the freezer unit includes a freezer container for containing nut kernels, the freezer container including an air inlet and an air outlet; the low-temperature nitrogen obtained after refrigeration by the refrigeration unit is introduced into the freezing container through a pipeline and an air inlet and is used for freezing the nut kernels;
the high pressure washing and peeling mechanism comprises: the conveying cylinder, the conveying and turning auger and the high-pressure water sprayer are arranged on the conveying cylinder; the conveying and turning auger is arranged in the conveying cylinder, the outer diameter of a conveying blade of the conveying and turning auger is not more than two thirds of the inner diameter of the conveying cylinder, and the conveying and turning auger is used for conveying the nut meat materials from the feeding hole to the discharging hole and turning the nut meat materials; the high-pressure water spray heads are arranged along the conveying direction of the conveying and turning auger, and are respectively arranged on the inner side wall of the conveying cylinder and the side and the upper part of the conveying and turning auger on the cross section of the vertical conveying and turning auger, and are connected with a high-pressure water source and used for removing the inner skins of the frozen nuts by using high-pressure water; the conveying cylinder is provided with a water outlet for draining water and discharging inner skin at the bottom of the conveying and turning auger;
the color protection subsystem is used for performing color protection treatment on the nut kernels with the inner skins removed.
Further, the color protection subsystem includes: the device comprises a color protection cylinder, an atomizing device, a first pump body, a second pump body and a first gas storage tank;
the first gas storage tank comprises an inlet and an outlet, the inlet of the first gas storage tank is communicated with the exhaust port of the freezing container through a first pipeline, and nitrogen discharged from the freezing container is temporarily stored in the first gas storage tank through the inlet;
the color protection cylinder is vertically arranged, and a cylindrical conveying channel is arranged in the color protection cylinder;
a conveying auger for conveying the nuts after the inner skins are removed is arranged in the conveying channel;
a plurality of air inlets are formed in the wall of the color protection cylinder;
one end of the first pump body is communicated with the first gas storage tank through a pipeline, and the other end of the first pump body is communicated with the gas inlet of the color protection cylinder through a gas transmission pipeline and is used for pumping nitrogen in the first gas storage tank into the color protection cylinder;
the temperature control unit is arranged on the gas transmission pipeline and used for heating or refrigerating nitrogen flowing through the gas transmission pipeline, and further controlling the temperature of the nitrogen pumped into the color protection cylinder within a set range of 0.1-10 ℃;
the atomizing device is characterized in that an atomizing port of the atomizing device is communicated with the gas transmission pipeline and is used for atomizing the color fixative and then spraying the atomized color fixative into the gas transmission pipeline, and the atomized color fixative is input into the color protection cylinder along with nitrogen through the gas inlet;
the conveying auger comprises a central shaft body, an air exhaust channel is arranged in the central shaft body in a hollow mode, an air exhaust hole is formed in the side wall of the central shaft body, an air exhaust port is formed in one end of the air exhaust channel, and the air exhaust port is connected with the second pump body through an air exhaust pipeline; the second pump body sequentially pumps out the gas in the color protection cylinder through the pumping hole, the pumping channel and the exhaust port and is used for maintaining the pressure value in the conveying channel to be 0.01-0.05 MPa during working;
the plurality of air inlets are uniformly distributed in the circumferential direction of the color protection cylinder; on the section perpendicular to the conveying channel, nitrogen carrying color fixative molecules moves along the radial direction of the color protection cylinder, and the color fixative molecules settle down after contacting the nut kernels and attach to the surfaces of the nut kernels.
Further, a discharge opening is arranged below the freezing container and is arranged above the feed opening of the conveying cylinder. The nut meat material discharged from the freezing container can directly fall into the conveying cylinder. The discharge opening is preferably connected with the feed opening in a pipe sealing mode.
Further, the feed inlet of the conveying cylinder is low, the discharge outlet of the conveying cylinder is high, and the conveying cylinder is inclined at an angle of 10-45 degrees with the horizontal plane. The water in the conveying cylinder flows downwards, so that the fallen inner skin is washed away downwards, the inner skin removed nuts discharged from the discharge hole are cleaner, and impurities such as the inner skin are less.
Further, carry the auger that stirs including the spiral winding setting carry the blade, it has the hole of permeating water that is used for being convenient for water liquid and the endothelial that drops to pass through to gather on the blade.
This application compact structure utilizes low temperature nitrogen gas to last through freezing container to the realization is compared with frozen water soaking to the quick freezing of nut meat, the utility model discloses a freezing temperature is controllable, and undulant little, and whole freezing process is less to the water content influence of nut meat.
The color protection treatment is carried out on the nut kernels with the inner skins removed by the atomized color protection agent, the dosage of the color protection agent is small, the natural taste of the nut kernels is kept to the maximum extent, and the natural ingredients of the nut kernels are prevented from being damaged by excessive additives. Compared with the traditional mode of soaking and protecting color, the method greatly reduces the contact of the nut kernels and water liquid, the nut kernels after color protection treatment do not need to be dried, or the time of drying treatment is greatly shortened, and the production efficiency is improved.
And the nitrogen is used as a carrier, so that the effect of conveying the color fixative is achieved, the nut kernels in the color protection treatment process are completely wrapped by the nitrogen, the nut kernels are prevented from contacting with external air, and an aseptic color protection environment is created while the nut kernels are prevented from being oxidized.
The low-temperature nitrogen gas is temporarily stored in the first tank (the first tank is preferably provided with an insulating layer) through the first pipeline. Due to heat loss in the freezing process, although the temperature value of nitrogen in the first tank body is improved, the method is more suitable for performing low-temperature cooling on nut kernels during decoloring treatment, and therefore secondary utilization of low-temperature nitrogen energy is achieved.
The nitrogen is cooled or heated by the temperature control unit in the conveying process, and the temperature of the nitrogen is controlled to be not more than 5 ℃ (preferably 0.1-5 ℃), so that the process temperature of color protection treatment is effectively controlled, and the freshness of the nut kernels subjected to endothelium removal is maintained to the maximum extent.
And finally, the conveying channel is cylindrical, the plurality of air inlets are uniformly distributed in the circumferential direction of the color protection cylinder, the nitrogen carries the color protection agent molecules to move along the radial direction of the color protection cylinder, so that an aggregation effect is formed, and the distribution of the color protection agent molecules in the radial direction of the color protection cylinder is more uniform. And the conveying channel is maintained in a negative pressure state of 0.01-0.05 MPa during work, so that the activity degree of the color fixative molecules is improved, the color fixative molecules in the color protection cylinder (in the conveying channel) are further uniformly distributed, and the nut kernels are colored more uniformly.
Further, a filtering device for filtering nitrogen is arranged on the first pipeline.
The temperature control unit may be a conventional one, for example, the temperature control unit includes a formulation module and a heating module.
Further, in the axial direction (conveying passage direction) of the color protection cylinder, the plurality of air inlets are uniformly arranged.
Furthermore, the lower end of the color protection cylinder of the conveying channel is provided with a feeding hole, the upper end of the color protection cylinder is provided with a discharging hole, and the nuts move from bottom to top under the pushing of the conveying auger.
The nut kernel moves from bottom to top, the color fixative moves along the radial direction of the color protection cylinder under the load of nitrogen, the paths of the nut kernel and the color protection cylinder are vertical, and the color fixative continuously settles under the action of self gravity, thereby greatly improving the attachment probability of the color fixative, namely improving the efficiency of the color protection treatment process.
Furthermore, on a projection cross section containing the central axis of the color protection cylinder, the air inlet is obliquely and downwards arranged, and nitrogen sprayed out from the air inlet is obliquely and downwards sprayed to the nut kernels on the conveying auger.
Further, carry the auger still including around the helical blade that central axis body spiral coiled the setting, the last distributing of helical blade has the bleeder vent. The air holes are densely distributed, so that atomized color fixative molecules can contact the nut kernels from the lower part of the spiral blade through the air holes, and the nut kernels can be fully, thoroughly and uniformly subjected to color protection treatment.
Further, the color fixative is a mixed solution of edible citric acid and vitamin C. Wherein, the edible citric acid is preferably 0.3 percent by mass; the mass percentage of Vc is 0.5%.
Further, the temperature sensor is arranged at the air inlet and used for detecting the temperature value of the nitrogen blown out of the color protection cylinder.
Preferably, the system further comprises a controller (such as a cpu, a single chip microcomputer, etc.), wherein the controller is respectively connected to the temperature sensor and the temperature control unit, and can control the temperature control unit to operate according to a temperature value fed back by the temperature sensor, thereby forming a closed-loop feedback and control system.
Further, the atomization device is an ultrasonic atomization device. The elastic sheet is arranged in the solution of the color fixative.
Further, the device also comprises a recovery unit for recovering the color fixative and the nitrogen; the upper end of the air pumping channel in the central shaft body is closed, and the lower end of the air pumping channel is provided with the air outlet; and the exhaust port is communicated with the second pump body and the recovery unit sequentially through a pipeline.
Further, the recovery unit includes: and the tail end of a pipeline led out from the second pump body extends into the lower part of the liquid level of the recovered solution, a nitrogen recovery port is arranged above the liquid level of the recovered solution in the recovered container, and nitrogen filtered by the recovered solution is discharged through the nitrogen recovery port.
Further, the recovery container is a color fixative container, and the recovery solution is a color fixative solution; the bottom of the color fixative container is communicated with the atomizing device and is used for conveying the color fixative into the atomizing device; and the nitrogen recovery port is arranged above the toner container and communicated with a second gas storage tank through a second pipeline, and the second gas storage tank is communicated with the gas inlet end of the refrigeration unit through a third pipeline. Thereby realizing the recycling of the nitrogen.
The system further comprises a nitrogen supplementing system, wherein the nitrogen supplementing system is used for supplementing and conveying nitrogen to the refrigerating unit and comprises a third air storage tank, a supplementing pipeline and a control valve body; the third gas storage tank is communicated with the gas inlet end of the refrigeration unit through a supplement pipeline, and the control valve body is arranged on the supplement pipeline. The control valve is preferably a pilot control valve, and when the pressure value of the air inlet end of the refrigeration unit is lower than a set value (namely the pressure difference of the pilot end of the pilot control valve reaches a set threshold), the control valve is opened to supplement nitrogen to the refrigeration unit.
Wherein, the refrigeration unit can be prior art, for example it includes the body, this internal runner that is equipped with nitrogen gas and passes through that is provided with the refrigeration module in the runner. More preferably, the refrigeration unit comprises a control module, a temperature sensor and the like, so that the precise control of the refrigeration temperature is realized.
Furthermore, the temperature control unit comprises a heat exchanger, the heat exchanger comprises a low-temperature pipeline as a part of the middle of the gas transmission pipeline and a high-temperature pipeline as a part of the middle of the second pipeline, and the low-temperature pipeline and the high-temperature pipeline are tightly attached to each other and wound for realizing heat exchange of two nitrogen flows through the low-temperature pipeline and the high-temperature pipeline.
The nitrogen in the gas transmission pipeline is generally low in temperature and cannot meet the requirements of a color protection treatment process, the nitrogen recovered from the recovery container is high in temperature, after the nitrogen and the nitrogen exchange heat through the heat exchanger, the temperature reduction is more suitable for the requirements of the color protection process, extra refrigeration or heating treatment of the temperature control unit is reduced, the temperature reduction of the recovered nitrogen after the heat exchange treatment is reduced, the work of the refrigeration unit can be reduced, and therefore energy recovery and utilization in the whole process of removing endothelium and protecting color are achieved, and energy consumption is reduced to the greatest extent.
The utility model discloses a nut kernel removes endothelial color protection device compact structure utilizes atomizing color fixative to carry out the color protection to the nut kernel of taking off the endothelium and handles, and the color fixative quantity is few, and the natural taste of at utmost keeps the nut kernel, avoids too much additive to destroy the natural composition of nut kernel, more healthy environmental protection.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments or the description in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a color protection device for removing inner skin of nut kernels according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a plurality of air inlets uniformly distributed in the circumferential direction of the color protection cylinder in the embodiment.
Fig. 3 is a schematic structural diagram of a color protection subsystem in the embodiment.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The present invention will be further explained with reference to specific embodiments.
As shown in fig. 1, the energy-saving and environment-friendly peeling and color protecting device provided in this embodiment includes a refrigeration unit, a freezing unit, a high-pressure washing peeling mechanism 90 and a color protecting subsystem.
The refrigerating unit is used for refrigerating the nitrogen to a set temperature (such as-18-20 ℃);
the freezer unit includes a freezer container (not shown) for containing nut kernels, the freezer container including an air inlet and an air outlet; the low-temperature nitrogen obtained after refrigeration by the refrigeration unit is introduced into the freezing container through the pipeline and the air inlet and is used for freezing the nut kernels;
the high pressure washing and peeling mechanism 90 comprises: a conveying cylinder 91, a conveying and turning auger 93 and a high-pressure water spray head 92; the conveying and turning auger is arranged in the conveying cylinder, the conveying and turning auger is arranged at the middle bottom part in the conveying cylinder, the outer diameter of a conveying blade 94 of the conveying and turning auger is not more than two thirds of the inner diameter of the conveying cylinder 91, and the conveying and turning auger is used for conveying nut meat materials from the feeding hole to the discharging hole and turning the nut meat materials; the plurality of high-pressure water spray heads 92 are arranged along the conveying direction of the conveying and turning auger, and on the cross section of the vertical conveying and turning auger, the plurality of high-pressure water spray heads are respectively arranged on the inner side wall of the conveying cylinder and the side and the upper part of the conveying and turning auger, and are connected with a high-pressure water source and used for removing the inner skin of the frozen nut kernel by using high-pressure water; the bottom of the conveying cylinder, which is arranged at the bottom of the conveying and turning auger, is provided with a water outlet 95 for draining water and discharging inner skin.
Preferably, a discharge opening is arranged below the freezing container and above the feed opening of the conveying cylinder. The nut meat material discharged from the freezing container can directly fall into the conveying cylinder. The discharge opening is preferably connected with the feed opening in a pipe sealing mode.
In the upper technical scheme, the feeding port of the conveying cylinder 91 is optionally low, the discharging port of the conveying cylinder is optionally high, and the conveying cylinder is obliquely arranged at an angle of 10-30 degrees with the horizontal plane. The conveying and turning auger comprises conveying blades 94 which are spirally wound, and water permeable holes 94a for allowing water liquid and fallen endothelium to pass through are densely distributed on the conveying blades. The water in the conveying cylinder flows downwards, so that the fallen inner skin is washed away downwards, the inner skin removed nuts discharged from the discharge hole are cleaner, and impurities such as the inner skin are less. When the water liquid channel is arranged at the bottom of the conveying cylinder, the water liquid channel is used for conveying the cylinder through the water outlet flow path and taking away the inner skin.
As shown in fig. 1 and 3, the color protection subsystem includes: the color protection cylinder 10, the atomization device 30, the first pump body 51, the second pump body 52 and the first air storage tank 81;
the first gas tank 81 includes an inlet and an outlet, the inlet thereof being communicated with the exhaust port of the freezing container through the first pipe 61, and nitrogen gas discharged from the freezing container being temporarily stored in the first gas tank 81 through the inlet;
the color protection cylinder 10 is vertically arranged, and a cylindrical conveying channel 11 is arranged in the color protection cylinder;
a conveying auger 20 for conveying the nuts after the inner skin is removed is arranged in the conveying channel 11;
the wall of the color protection cylinder 10 is provided with a plurality of air inlets 12;
one end of the first pump body 51 is communicated with the first air storage tank 81 through a pipeline, and the other end of the first pump body 51 is communicated with the air inlet 12 of the color protection tube 10 through an air transmission pipeline 62, and is used for pumping nitrogen in the first air storage tank 81 into the color protection tube 10;
the gas transmission pipeline 62 is provided with a temperature control unit 40, and the temperature control unit 40 is used for heating or refrigerating the nitrogen flowing through the gas transmission pipeline 62, so as to control the temperature of the nitrogen pumped into the color protection cylinder 10 within the set range of 0.1-5 ℃;
the atomizing port of the atomizing device 30 is communicated with the gas transmission pipeline 62 and is used for atomizing the color fixative and then spraying the color fixative into the gas transmission pipeline 62, and the atomized color fixative is input into the conveying channel 11 in the color protection tube 10 through the gas inlet 12 along with the nitrogen;
the conveying auger 20 comprises a central shaft body 22, an air exhaust channel is arranged in the central shaft body 22 in a hollow mode, an air exhaust hole 22a is formed in the side wall of the central shaft body 22, an air exhaust port 22b is formed in one end of the air exhaust channel, and the air exhaust port 22b is connected with the second pump body 52 through an air exhaust pipeline 63; the second pump body 52 pumps the gas in the conveying channel 11 sequentially through the pumping hole, the pumping channel and the exhaust port, and is used for maintaining the pressure value in the conveying channel 11 to be 0.01-0.05 MPa during working;
a plurality of air inlets 12 are uniformly arranged in the circumferential direction of the color protection cylinder 10; on the section vertical to the conveying channel 11, nitrogen carrying color fixative molecules moves along the radial direction of the color protection cylinder 10, the nut kernels move along the axial direction of the color protection cylinder 10 under the driving of the conveying auger 20, and the color fixative molecules settle and attach to the surfaces of the nut kernels after contacting the nut kernels.
The outer diameter of the spiral blade 21 is matched with the diameter of the inner wall of the color protection cylinder 10 (the outer diameter of the spiral blade is equal to or slightly smaller than the inner diameter of the color protection cylinder), and the caliber of the air holes 21a is not smaller than the particle size of the nut, so that the nut is prevented from falling from a gap between the spiral blade and the inner wall of the color protection cylinder and the air holes. In the height direction, two sections arranged on the spiral blades at intervals form a semi-closed conveying space, and when the atomized color fixative is sprayed into the conveying space, the two sections arranged on the spiral blades at intervals tend to prevent the atomized color fixative from overflowing, so that the atomized color fixative is effectively ensured to move along the radial direction of the color protection barrel.
The color fixative is continuously attached to the nut meat after being sprayed into the color fixative barrel, the concentration of the color fixative molecules in the nitrogen is reduced, the nitrogen carrying the color fixative can be further ensured to move along the radial direction of the color fixative barrel under the negative pressure environment in the second pump body and the conveying channel, the mixed gas is continuously compressed under the gas accumulation effect, the mass density is increased, the concentration reduction trend caused by the sedimentation of the color fixative is effectively compensated, and finally the concentration of the color fixative is kept generally uniform in the radial direction of the color fixative barrel.
The length of the color protection cylinder 10 is set according to the production scale, when the scale is smaller, the color protection cylinder can be made to be relatively shorter, the upper end and the lower end of the color protection cylinder 10 are respectively provided with a feeding port and a discharging port, the feeding port and the discharging port are respectively provided with a sealing cover body, when nut meat materials are poured, the nut meat materials are introduced into the color protection cylinder by using a conveying auger, and blades (two sections which are spaced up and down) of the conveying auger can ensure that the nut meat materials are uniformly dispersed and layered in the color protection cylinder and are not stacked together, so that the uniform color protection treatment is facilitated. And after the color protection treatment is finished, firstly closing the first pump body, then closing the second pump body, opening the sealing cover body, rotating the conveying auger again, and guiding out the nut kernel materials.
When the production scale is large, the color protection cylinder can be made longer (for example, more than 2 meters), the conveying channel 11 is provided with a feeding hole at the lower end of the color protection cylinder 10, a discharging hole is arranged at the upper end of the color protection cylinder 10, and the nut kernels move from bottom to top under the pushing of the conveying auger 20. The color protection treatment is carried out on the nut kernels in the conveying process. The nut kernel moves from bottom to top, the color fixative moves along the radial direction of the color protection cylinder 10 under the load of nitrogen, the paths of the nut kernel and the color protection cylinder are vertical, and the color fixative continuously settles under the action of self gravity, thereby greatly improving the attachment probability of the color fixative, namely improving the efficiency of the color protection treatment process.
This application compact structure utilizes the low temperature nitrogen gas that the temperature is-18- — 20 ℃ to last through freezing container to the realization is compared with the frozen water soaking to the quick freezing treatment of nut meat, the utility model discloses a freezing temperature of freezing treatment is controllable, and undulant little, and whole freezing treatment process is less to the water content influence of nut meat.
The color protection treatment is carried out on the nut kernels with the inner skins removed by the atomized color protection agent, the dosage of the color protection agent is small, the natural taste of the nut kernels is kept to the maximum extent, and the natural ingredients of the nut kernels are prevented from being damaged by excessive additives. Compared with the traditional mode of soaking and protecting color, the method greatly reduces the contact of the nut kernels and water liquid, the nut kernels after color protection treatment do not need to be dried, or the time of drying treatment is greatly shortened, and the production efficiency is improved.
The nitrogen serves as a carrier, not only plays a role of conveying the color fixative, the nitrogen completely wraps the nut kernels in the color protection treatment process, the contact between the nut kernels and the outside air is avoided, and a sterile color protection environment is created while the oxidation of the nut kernels is avoided.
The low-temperature nitrogen gas is temporarily stored in the first tank 81 (the first tank is provided with an insulating layer) through the first pipe 61. Because of the heat loss in the freezing process, the nitrogen temperature value in the first tank body is increased, and the method is more suitable for performing low-temperature cooling on the nut kernels during decoloring treatment, thereby realizing the secondary utilization of low-temperature nitrogen energy.
The nitrogen is cooled or heated by the temperature control unit 40 in the conveying process, and the temperature of the nitrogen is controlled to be not more than 5 ℃ (preferably 0.1-5 ℃), so that the process temperature of color protection treatment is effectively controlled, and the freshness of the nut kernels after the inner skin is removed is maintained to the maximum extent.
Finally, the conveying channel 11 is cylindrical, the plurality of air inlets 12 are uniformly distributed in the circumferential direction of the color protection cylinder 10, the nitrogen carries the color protection agent molecules to move along the radial direction of the color protection cylinder 10, so that an aggregation effect is formed, and the distribution of the color protection agent molecules in the radial direction of the color protection cylinder 10 is more uniform. And the conveying channel 11 is maintained in a negative pressure state of 0.01-0.05 MPa during work, so that the activity degree of the color fixative molecules is improved, the color fixative molecules in the color protection cylinder 10 (in the conveying channel 11) are further uniformly distributed, and the nut kernels are colored more uniformly.
The first pipeline 61 is provided with a filtering device (for example, an air filter screen) for filtering the nitrogen gas, so as to filter and remove impurities in the nitrogen gas.
The high pressure flush skinning mechanism preferably comprises: a grid-shaped bearing platform and a high-pressure water spray head; the latticed bearing platform is used for bearing the frozen nut kernels; the high-pressure water spray head is arranged above the latticed bearing platform, is connected with a high-pressure water source and is used for removing the inner skin of the nut kernels by utilizing high-pressure water. The grid-shaped bearing platform can be a static semi-open container or a conveyer belt for connecting the freezing unit and the color protection cylinder. The cross section of the conveying belt is U-shaped, the bottom of the conveying belt is hollowed to be in a grid design, a plurality of high-pressure water spray nozzles are arranged above the conveying belt at intervals along the conveying direction, and the nut kernels finish the inner skin removing operation in the conveying process.
As shown in fig. 2, the plurality of air inlets 12 are uniformly arranged in the axial direction of the color protection tube 10 (in the direction of the conveyance path 11).
In the above technical scheme, optionally, the conveying channel 11 is provided with a feeding hole at the lower end of the color protection cylinder 10, a discharging hole is arranged at the upper end of the color protection cylinder 10, and the nuts move from bottom to top under the pushing of the conveying auger 20. The nut kernel moves from bottom to top, the color fixative moves along the radial direction of the color protection cylinder 10 under the load of nitrogen, the paths of the nut kernel and the color protection cylinder are vertical, and the color fixative continuously settles under the action of self gravity, thereby greatly improving the attachment probability of the color fixative, namely improving the efficiency of the color protection treatment process.
The conveying auger 20 also comprises a helical blade 21 spirally wound around the central shaft body, and air holes 21a are densely distributed on the helical blade. The air holes are densely distributed, so that atomized color fixative molecules can contact the nut kernels from the lower part of the spiral blade through the air holes, and the nut kernels can be fully, thoroughly and uniformly subjected to color protection treatment.
The color fixative is mixed solution of edible citric acid and vitamin C. Wherein, the edible citric acid is preferably 0.3 percent by mass; the mass percentage of Vc is 0.5%.
The present embodiment further includes a temperature sensor 41 provided at the gas inlet 12 for detecting a temperature value of the nitrogen gas blown off from the color protection tube 10, and a controller 42. The controller 42 can be a cpu, a single chip, etc., and is connected to the temperature sensor and the temperature control unit, respectively, and can control the temperature control unit to operate according to the temperature value fed back by the temperature sensor, thereby forming a closed-loop feedback and control system.
The atomizing device 30 is an ultrasonic atomizing device 30. It includes the shell fragment 32 that is used for ultrasonic control, and shell fragment 32 sets up in the solution of color fixative.
The embodiment also comprises a recovery unit for recovering the color fixative and the nitrogen; the upper end of the air exhaust channel in the central shaft body is closed, and the lower end of the air exhaust channel is provided with an air exhaust port; the exhaust port is in turn in communication with the second pump body 52 and the recovery unit via a conduit.
The recovery unit includes: the recovery container 70 containing the recovery solution, the end of the recovery pipeline 64 led out from the second pump body 52 extends into the lower part of the liquid level of the recovery solution, a nitrogen recovery port 71 is arranged above the liquid level of the recovery solution in the recovery container 70, and the nitrogen filtered by the recovery solution is discharged through the nitrogen recovery port 71.
The recovery container is a color fixative container, and the recovery solution is a color fixative solution; the bottom of the color fixative container is communicated with the container 31 of the atomizing device 30 and is used for conveying the color fixative into the container 31 of the atomizing device 30; a nitrogen gas recovery port is arranged above the toner container (recovery container 70), the nitrogen gas recovery port is communicated with a second gas storage tank 82 through a second pipeline 65, and the second gas storage tank 82 is communicated with the gas inlet end of the refrigeration unit through a third pipeline 66. Thereby realizing the recycling of the nitrogen.
The embodiment further comprises a nitrogen supplementing system, which is used for supplementing and conveying nitrogen to the refrigeration unit, wherein the nitrogen supplementing system comprises a third air storage tank 83, a supplementing pipeline 84 and a control valve body 85; the third gas storage tank is communicated with the gas inlet end of the refrigeration unit through a supplement pipeline, and the control valve body is arranged on the supplement pipeline. The control valve is preferably a pilot control valve, and when the pressure value of the air inlet end of the refrigeration unit is lower than a set value (namely the pressure difference of the pilot end of the pilot control valve reaches a set threshold), the control valve is opened to supplement nitrogen to the refrigeration unit.
Wherein, the refrigeration unit can be prior art, for example it includes the body, this internal runner that is equipped with nitrogen gas and passes through that is provided with the refrigeration module in the runner. More preferably, the refrigeration unit comprises a control module, a temperature sensor and the like, so that the precise control of the refrigeration temperature is realized.
The temperature control unit may be a conventional one, for example, the temperature control unit includes a formulation module and a heating module. As shown in fig. 1, the temperature control unit further preferably further comprises a heat exchanger, the heat exchanger comprises a low-temperature pipeline as a middle part of the gas pipeline 62 and a high-temperature pipeline as a middle part of the second pipeline, and the low-temperature pipeline and the high-temperature pipeline are closely wound with each other for realizing heat exchange of two nitrogen flows through the low-temperature pipeline and the high-temperature pipeline.
The nitrogen in the gas transmission pipeline 62 is generally low in temperature and cannot meet the requirements of the color protection treatment process, the nitrogen recovered from the recovery container is high in temperature, after the nitrogen and the nitrogen exchange heat through the heat exchanger, the temperature reduction is more suitable for the requirements of the color protection process, extra refrigeration or heating treatment of the temperature control unit is reduced, the temperature reduction of the recovered nitrogen after the heat exchange treatment is reduced, the work of the refrigeration unit can be reduced, and therefore energy recovery and utilization in the whole process of removing endothelium and protecting color are achieved, and energy consumption is reduced to the greatest extent.
The utility model discloses a nut kernel removes endothelial color protection device compact structure utilizes atomizing color fixative to carry out the color protection to the nut kernel of taking off the endothelium, and the color fixative quantity is few, keeps the natural taste of nut kernel to the at utmost, avoids too much additive to destroy the natural composition of nut kernel.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. An energy-saving environment-friendly peeling and color protecting device is characterized by comprising: the device comprises a refrigeration unit, a freezing unit, a high-pressure washing and peeling mechanism and a color protection subsystem;
the refrigerating unit is used for refrigerating the nitrogen to a set temperature;
the freezer unit includes a freezer container for containing nut kernels, the freezer container including an air inlet and an air outlet; the low-temperature nitrogen obtained after refrigeration by the refrigeration unit is introduced into the freezing container through a pipeline and an air inlet and is used for freezing the nut kernels;
the high pressure washing and peeling mechanism comprises: the conveying cylinder, the conveying and turning auger and the high-pressure water sprayer are arranged on the conveying cylinder; the conveying and turning auger is arranged in the conveying cylinder, the outer diameter of a conveying blade of the conveying and turning auger is not more than two thirds of the inner diameter of the conveying cylinder, and the conveying and turning auger is used for conveying the nut meat materials from the feeding hole to the discharging hole and turning the nut meat materials; the high-pressure water spray heads are arranged along the conveying direction of the conveying and turning auger, and are respectively arranged on the inner side wall of the conveying cylinder and the side and the upper part of the conveying and turning auger on the cross section of the vertical conveying and turning auger, and are connected with a high-pressure water source and used for removing the inner skins of the frozen nuts by using high-pressure water; the conveying cylinder is provided with a water outlet for draining water and discharging inner skin at the bottom of the conveying and turning auger;
the color protection subsystem is used for performing color protection treatment on the nut kernels with the inner skins removed.
2. The energy-saving environment-friendly peeling and color protecting device according to claim 1, wherein the color protecting subsystem comprises: the device comprises a color protection cylinder, an atomizing device, a first pump body, a second pump body and a first gas storage tank;
the first gas storage tank comprises an inlet and an outlet, the inlet of the first gas storage tank is communicated with the exhaust port of the freezing container through a first pipeline, and nitrogen discharged from the freezing container is temporarily stored in the first gas storage tank through the inlet;
the color protection cylinder is vertically arranged, and a cylindrical conveying channel is arranged in the color protection cylinder;
a conveying auger for conveying the nuts after the inner skins are removed is arranged in the conveying channel;
a plurality of air inlets are formed in the wall of the color protection cylinder;
one end of the first pump body is communicated with the first gas storage tank through a pipeline, and the other end of the first pump body is communicated with the gas inlet of the color protection cylinder through a gas transmission pipeline and is used for pumping nitrogen in the first gas storage tank into the color protection cylinder;
the temperature control unit is arranged on the gas transmission pipeline and used for heating or refrigerating nitrogen flowing through the gas transmission pipeline, and further controlling the temperature of the nitrogen pumped into the color protection cylinder within a set range of 0.1-10 ℃;
the atomizing device is characterized in that an atomizing port of the atomizing device is communicated with the gas transmission pipeline and is used for atomizing the color fixative and then spraying the atomized color fixative into the gas transmission pipeline, and the atomized color fixative is input into the color protection cylinder along with nitrogen through the gas inlet;
the conveying auger comprises a central shaft body, an air exhaust channel is arranged in the central shaft body in a hollow mode, an air exhaust hole is formed in the side wall of the central shaft body, an air exhaust port is formed in one end of the air exhaust channel, and the air exhaust port is connected with the second pump body through an air exhaust pipeline; the second pump body sequentially pumps out the gas in the color protection cylinder through the pumping hole, the pumping channel and the exhaust port and is used for maintaining the pressure value in the conveying channel to be 0.01-0.05 MPa during working;
the plurality of air inlets are uniformly distributed in the circumferential direction of the color protection cylinder; on the section perpendicular to the conveying channel, nitrogen carrying color fixative molecules moves along the radial direction of the color protection cylinder, and the color fixative molecules settle down after contacting the nut kernels and attach to the surfaces of the nut kernels.
3. The energy-saving environment-friendly peeling and color-protecting device according to claim 1, wherein a discharge port is arranged below the freezing container, and the discharge port is arranged above the feeding port of the conveying cylinder.
4. The energy-saving environment-friendly peeling and color protecting device according to claim 1, wherein a feed inlet of the conveying cylinder is low, a discharge outlet of the conveying cylinder is high, and the conveying cylinder is inclined at an angle of 10-45 degrees with a horizontal plane.
5. The energy-saving environment-friendly peeling and color-protecting device according to claim 1, wherein the conveying and turning auger comprises the conveying blades spirally wound, and water-permeable holes for allowing water liquid and fallen endothelium to pass through are densely distributed on the conveying blades.
6. The energy-saving environment-friendly peeling and color-protecting device according to claim 2, wherein a filtering device for filtering nitrogen is arranged on the first pipeline.
7. The energy-saving environment-friendly peeling and color-protecting device according to claim 2, wherein a plurality of air inlets are uniformly arranged in the axial direction of the color-protecting cylinder.
8. The energy-saving environment-friendly peeling and color-protecting device according to claim 2, wherein the conveying channel is provided with a feeding hole at the lower end of the color-protecting cylinder, a discharging hole is arranged at the upper end of the color-protecting cylinder, and the nut kernels move from bottom to top under the pushing of the conveying auger.
9. The energy-saving environment-friendly peeling and color protecting device according to claim 8, wherein the air inlet is arranged obliquely downwards on a projection cross section containing the central axis of the color protecting cylinder, and nitrogen sprayed from the air inlet is sprayed obliquely downwards to the nut kernels on the conveying auger.
10. The energy-saving environment-friendly peeling and color-protecting device according to claim 2, wherein the conveying auger further comprises a helical blade spirally wound around the central shaft body, and air holes are densely distributed on the helical blade.
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| CN201920933017.0U CN210841486U (en) | 2019-06-20 | 2019-06-20 | Energy-saving environment-friendly peeling and color protecting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110150683A (en) * | 2019-06-20 | 2019-08-23 | 北京联合大学 | A kind of energy saving and environment friendly peeling color protection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110150683A (en) * | 2019-06-20 | 2019-08-23 | 北京联合大学 | A kind of energy saving and environment friendly peeling color protection device |
| CN110150683B (en) * | 2019-06-20 | 2024-01-19 | 北京联合大学 | Energy-saving environment-friendly peeling and color protecting device |
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