CN215873339U - Device for degrading mycotoxin in dried fruits by plasma - Google Patents

Abstract

The utility model provides a device for degrading mycotoxin in dry fruits by plasma, which belongs to the technical field of dry fruit processing.A plurality of inclined partition plates with air holes are arranged on two sides in a reaction container in a crossed manner from top to bottom, so that plasma gas is fully contacted with the dry fruits while the falling speed of the dry fruits is reduced, and the device is favorable for fully degrading the fungi and the toxins in the dry fruits; through setting up plasma generating device in the reaction vessel below, adopt the below mode of treatment that admits air, the process of plasma gas mass transfer has been strengthened, can promote active material's degradation efficiency in the processing procedure of dried fruit, toxin degradation's effect has been increased, it is stable even to discharge, realize degrading the mycotoxin on every dried fruit fast in succession, can carry out large-scale processing, the problem of processing area restriction and can only handle punctiform food surface or thin layer surface food has been avoided, it has extensive popularization and application to worth to process technical field at dried fruit.

Description

Device for degrading mycotoxin in dried fruits by plasma

Technical Field

The utility model relates to the technical field of dried fruit processing, in particular to a processing device for degrading mycotoxin in dried fruits.

Background

The dried fruit, also called dry fruit, is processed by drying after the fresh fruit is ripe. The drying mode has a long history in China, and ancient people naturally dry fruits in a sun drying mode to prepare dried fruits so as to prolong the storage period of the fruits. Most of water in the fruits can be removed by adopting natural conditions (air drying and sun drying) or artificial control (drying, hot air drying, vacuum drying and the like), the growth and breeding of microorganisms in the fruits are inhibited or reduced, the enzyme activity and the physicochemical components in the fruits are changed, the storage resistance of the fruits and the vegetables is improved, and the special flavor and taste of the fruits are maintained. The dried fruit may cause loss of bioactive compounds in the fruit part during the drying process, but still maintains most of the nutritional components of the fruit, and contains abundant minerals, vitamins and dietary fibers.

The dried fruits are easy to mildew (mycotoxin) during long-term storage, and can cause serious harm to human health after being eaten by mistake. At present, the device for degrading the mycotoxin in the dried fruits by a common chemical method cannot meet the requirements of people on the quality and safety of the dried fruits, and the dried fruits are treated by adopting a plasma technology, so that the device has the advantages of small influence on the quality of food and no secondary residue, but the surface of a sample cannot be widely covered by a common plasma device such as jet discharge plasma, and is suitable for treating a punctiform surface; the dielectric barrier discharge plasma allows a sample placing gap to be too small, only the toxin on the surface of thin-layer food can be processed, large-scale processing cannot be carried out, and the application in the food industry is limited.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the mycotoxin in the dry fruits degraded by the chemical method cannot meet the requirements of people on the quality and safety of the dry fruits, the conventional plasma technology for treating the dry fruits cannot widely cover the surface of a sample, can only be suitable for the surface of a sheet-shaped food or the surface of a thin-layer food, and has a limited treatment effect, the utility model aims to provide the device for degrading the mycotoxin in the dry fruits by using the plasma, which has stable and uniform discharge and large plasma generation area and is capable of realizing gas-phase surface discharge, and the device for degrading the mycotoxin in the dry fruits by using the plasma can slow down the falling speed of the dry fruits and simultaneously ensure that the plasma gas is fully contacted with the dry fruits by arranging a plurality of inclined partition plates with air holes in a step-shaped arrangement from top to bottom in a cross manner on two sides in a reaction container, so that the fungi and the toxins in the dry fruits can be degraded fully; through setting up plasma generating device in the reaction vessel below, adopt the below mode of treatment that admits air, the process of plasma gas mass transfer has been strengthened, can promote active material's degradation efficiency in the processing procedure of dried fruit, toxin degradation's effect has been increased, it is stable even to discharge, realize degrading the mycotoxin on every dried fruit fast in succession, can carry out large-scale processing, the problem of processing area restriction and can only handle punctiform food surface or thin layer surface food has been avoided, it has extensive popularization and application to worth to process technical field at dried fruit.

The utility model is realized by the following technical scheme:

the utility model provides a device for degrading mycotoxin in dried fruits by using plasma, which comprises a reaction container, wherein the top of the reaction container is fixedly connected with a hopper, and the bottom of the reaction container is connected with a support frame; a discharging pipe is arranged at the upper end in the reaction container, and the top of the discharging pipe is adapted to the bottom of the hopper; a plurality of inclined partition plates which are arranged in a step-shaped manner are crosswise arranged on two sides in the reaction container from top to bottom; the lower end in the reaction container is provided with a slope, and the slope and the partition plate are provided with air holes; the supporting frame is fixedly connected with a plasma gas generating device, the top of the plasma gas generating device is provided with an aeration head, and the aeration head penetrates through the bottom of the reaction container and is arranged below the slope; the bottom of the reaction container is provided with a discharge pipe, and the discharge pipe is connected with the slope.

The plasma gas generating device comprises a protective shell, a quartz tube, a spiral electrode and a grounding electrode, wherein the quartz tube is arranged in the protective shell, the grounding electrode is coated on the outer wall of the quartz tube, the spiral electrode is arranged in the quartz tube, and the top of the quartz tube is fixedly connected with the aeration head.

In the utility model, the bottom of the plasma gas generating device is provided with an air inlet pipe, the air inlet pipe is connected with an air pump at the other end, a silica gel column is arranged on the air inlet pipe between the air pump and the plasma gas generating device, and the top of the reaction container is provided with an exhaust pipe.

According to the utility model, a supporting plate is arranged on the upper side in the reaction container, and the feeding pipe is fixedly connected with the reaction container through the supporting plate.

According to the utility model, a motor is fixedly arranged on the supporting plate, a rotary table is fixedly connected to an output shaft of the motor, the rotary table is arranged between the hopper and the blanking pipe, and a material leakage port is arranged on the rotary table.

In the utility model, the material leakage opening is arc-shaped, and the arc-shaped circle center of the material leakage opening is superposed with the axis of the motor.

In the utility model, the width of the material leakage opening is larger than the diameter of the blanking pipe.

In the utility model, a through hole is arranged on one side of the support plate close to the exhaust pipe.

The principle of the utility model is as follows: the plasma gas generator adopts 50Hz alternating current and discharge voltage

Spring electrodes as high-voltage electrodes arranged in quartz tube and covered by quartz tubeAluminum foil is used as a grounding electrode; the spiral electrode (high voltage electrode) generates wire-shaped discharge along the surface of the quartz tube; the gas delivered into the gas inlet pipe by the air pump is dried by the silica gel column and enters the plasma gas generating device, a large amount of active free radicals and excited state particles such as ozone, hydrogen peroxide, hydroxyl free radicals and the like can be generated, and the active free radicals and the excited state particles ascend with the air flow from bottom to top; the hopper at the top of the reaction container is used for placing dry fruits to be treated, after plasma gas is generated, the rotating disc is driven to rotate through the motor, the material leakage port on the rotating disc is arranged at an interval below the hopper, the dry fruits in the hopper enter the discharging pipe through the material leakage port on the rotating disc at intervals, the dry fruits fall into the partition plate through the discharging pipe and roll down from top to bottom step by step along the partition plate, the plasma gas rises, the dry fruits fall down, the dry fruits are fully wrapped in the gas filled with active substances, and the purpose of mycotoxin molecular degradation is achieved.

Compared with the prior art, the device for degrading the mycotoxin in the dried fruit by using the plasma provided by the utility model can obtain the following beneficial effects:

the falling speed of the dry fruits is slowed down by arranging a plurality of inclined partition plates with air holes in a step-shaped arrangement from top to bottom in a crossed manner at two sides in the reaction container, and simultaneously plasma gas is fully contacted with the dry fruits, so that the dry fruits are fully wrapped in the gas filled with active substances to carry out the toxin degradation process; the plasma generating device is arranged below the reaction vessel, and a treatment mode of air inlet from the lower part is adopted, so that the mass transfer process of plasma gas is enhanced, and the toxin degradation effect is improved; the rotary table is arranged below the hopper, so that the feeding speed of the dried fruits in the hopper can be controlled through the rotating speed of the motor; can rapidly and continuously degrade the mycotoxin on each dried fruit, can carry out large-scale treatment, and has wide popularization and application values in the technical field of dried fruit processing.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or 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 other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of the structure of the present invention;

FIG. 2 is a schematic view showing a partial structure of an ion gas generator according to the present invention;

fig. 3 is a partial enlarged view of the utility model at a in fig. 1.

Fig. 4 shows a top view of the turntable of the present invention.

Reference numerals: 1-reaction vessel, 2-hopper, 3-support frame, 4-blanking pipe, 5-partition board, 6-slope, 7-plasma gas generating device, 8-aeration head, 9-discharge pipe, 10-protective shell, 11-quartz tube, 12-grounding electrode, 13-spiral electrode, 14-gas inlet pipe, 15-silica gel column, 16-air pump, 17-gas outlet pipe, 18-support plate, 19-through hole, 20-motor, 21-turntable, 22-material leakage port.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to fig. 1-4, and it is obvious that the described embodiments are some, not all embodiments 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", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular 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 should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, for convenience of description, the description of the relative positions of the various components of a device for plasma degradation of mycotoxins in dried fruit is described in terms of the layout of fig. 1, as follows: the positional relationship of up, down, left, right, etc. is determined according to the layout direction of fig. 1.

Referring to fig. 1 to 4, an embodiment of the present invention provides a device for degrading mycotoxin in dried fruits by using plasma, which includes a reaction container 1, wherein a hopper 2 is fixedly connected to the top of the reaction container 1, and a support frame 3 is fixedly connected to the bottom of the reaction container 1; a discharging pipe 4 is arranged at the upper end inside the reaction container 1, and the top of the discharging pipe 4 is adapted to the bottom of the hopper 2; a plurality of inclined partition plates 5 which are arranged in a step shape are crosswise arranged on two sides in the reaction container 1 from top to bottom; the lower end in the reaction container 1 is provided with a slope 6, and the slope 6 and the partition plate 5 are both provided with air holes; a plasma gas generating device 7 is fixedly connected to the support frame 3, an aeration head 8 is arranged at the top of the plasma gas generating device 7, and the aeration head 8 penetrates through the bottom of the reaction vessel 1 and is arranged below the slope 6; the bottom of the reaction vessel 1 is provided with a discharge pipe 9, and the discharge pipe 9 is connected with the slope 6.

Referring to fig. 2, in the present invention, the plasma gas generating device 7 includes a protective shell 10, a quartz tube 11, a spiral electrode 13 and a ground electrode 12, the quartz tube 11 is disposed in the protective shell 10, the outer wall of the quartz tube 11 is covered with the ground electrode 12, the spiral electrode 13 is disposed in the quartz tube 11, and the top of the quartz tube 11 is fixedly connected to the aeration head 8.

Referring to fig. 1, in the present invention, an air inlet pipe 14 is disposed at the bottom of the plasma gas generating device 7, the air inlet pipe 14 is connected with an air pump 16 at the other end, a silica gel column 15 is disposed on the air inlet pipe 14 between the air pump 16 and the plasma gas generating device, and an exhaust pipe 17 is disposed at the top of the reaction vessel 1.

Referring to fig. 1 and 3, in the present invention, a support plate 18 is disposed on the upper side inside the reaction vessel 1, the feeding tube 4 is fixedly connected to the reaction vessel 1 through the support plate 18, and a through hole 19 is disposed on one side of the support plate 18 close to the exhaust pipe 17.

Referring to fig. 1 and 3, in the present invention, a motor 20 is fixedly disposed on the supporting plate 18, an output shaft of the motor 20 is fixedly connected with a rotating disc 21, the rotating disc 21 is disposed between the hopper 2 and the feeding pipe 4, and a material leakage port 22 is disposed on the rotating disc 21.

Referring to fig. 4, in the present invention, the material discharge opening 22 is arc-shaped, and the center of the arc-shaped circle of the material discharge opening 22 coincides with the axis of the motor 20; the width of the material leakage opening 22 is larger than the diameter of the blanking pipe 4, so that blanking is prevented from being blocked.

The principle of the utility model is as follows: the plasma gas generator 7 adopts 50Hz alternating current and discharge voltage

The spring electrode is used as a high-voltage electrode and arranged in the quartz tube 11, and the outer wall of the quartz tube 11 is coated with aluminum foil to be used as a grounding electrode 12; the spiral electrode 13 (high voltage electrode) generates filament discharge along the surface of the quartz tube 11; the gas delivered into the gas inlet pipe 14 by the gas pump 16 is dried by the silica gel column 15 and enters the plasma gas generating device 7, so that a large amount of active free radicals and excited state particles such as ozone, hydrogen peroxide, hydroxyl free radicals and the like can be generated, and the active free radicals and the excited state particles ascend with the gas flow from bottom to top; hopper 2 at reaction vessel 1 top is used for placing the dry fruit of awaiting treatment, plasma gas produces the back and drives carousel 21 through motor 20 and rotate, drain 22 on carousel 21 appears at 2 below intervals in hopper 2, make the dry fruit in the hopper 2 enter into unloading pipe 4 through drain 22 on the carousel 21 at intervals, fall into on baffle 5 and roll along baffle 5 from top to bottom step by step through unloading pipe 4, plasma gas rises, dry fruit descends, make dry fruitThe fruit is fully wrapped in the gas filled with the active substance, so as to achieve the purpose of degrading the mycotoxin molecules.

When the device is used, dry fruits to be treated are placed in the hopper 2, the plasma gas generating device 7 is electrified, the air pump 16 is started, the air pump 16 pressurizes the gas and then inputs the gas into the air inlet pipe 14, and the gas is dried through the silica gel column 15 on the air inlet pipe 14 to prevent short circuit, the dried pressurized gas enters the plasma gas generating device 7 through the air inlet pipe 14, the plasma gas is generated, is sprayed out through the aeration head 8 and rises after passing through the air holes on the slope 6 and the partition plate 5 along with the gas flow; the motor 20 is started, the motor 20 drives the rotary table 21 to rotate, dry fruits in the hopper 2 pass through the discharge hole 22 on the rotary table 21 at intervals and fall onto the topmost partition plate 5 along the discharge pipe 4, and roll down along each partition plate 5 from top to bottom in sequence, and are fully contacted with the rising plasma gas in the rolling process, meanwhile, the plurality of obliquely arranged partition plates 5 can prolong the contact time of the dry fruits and the plasma gas, so that the dry fruits are fully wrapped in the gas filled with active substances to carry out a toxin degradation process, and the degraded dry fruits finally fall onto the slope 6 and fall out of the discharge pipe 9 along the slope 6; the reacted gas rises through the through hole 19 on the support plate 18 and is discharged from the exhaust pipe 17 on the top of the reaction vessel 1, and the support plate 18 can support and fix the blanking pipe and the motor and simultaneously facilitate the reacted gas to pass through the through hole and then be discharged from the exhaust pipe 17. The falling speed of the dried fruits is slowed down by arranging a plurality of inclined partition plates 5 with air holes in a step-shaped arrangement in a cross way from top to bottom on two sides in the reaction container 1, so that plasma gas is fully contacted with the dried fruits; the plasma gas generating device 7 is arranged below the reaction vessel 1, and a treatment mode of lower gas inlet is adopted, so that the mass transfer process of plasma gas is enhanced, and the toxin degradation effect is improved; the feeding speed of the dried fruits in the hopper 2 is controlled by the rotating speed of the rotating disc 21, the mycotoxin on each dried fruit can be degraded rapidly and continuously, large-scale degradation treatment can be carried out, and the method has wide popularization and application values in the technical field of dried fruit processing.

The standard parts used in the application document can be purchased from the market, and can be customized according to the description of the specification and the description of the attached drawings, the specific connection mode of each part adopts conventional means such as mature bolts, rivets, welding and the like in the prior art, and machines, parts and equipment adopt conventional models in the prior art.

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; while the utility model has been described in detail and with reference to the foregoing embodiments, it will 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; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (6)

1. A device for plasma degradation of mycotoxins in dried fruits, comprising a reaction vessel (1), characterized in that: the top of the reaction container (1) is fixedly connected with a hopper (2), and the bottom of the reaction container (1) is connected with a support frame (3); a discharging pipe (4) is arranged at the upper end inside the reaction container (1), and the top of the discharging pipe (4) is adapted to the bottom of the hopper (2); a plurality of inclined partition plates (5) which are arranged in a step-like manner are crosswise arranged on two sides in the reaction container (1) from top to bottom; a slope (6) is arranged at the lower end in the reaction container (1), and air holes are formed in the slope (6) and the partition plate (5); a plasma gas generating device (7) is fixedly connected to the supporting frame (3), an aeration head (8) is arranged at the top of the plasma gas generating device (7), and the aeration head (8) penetrates through the bottom of the reaction container (1) and is arranged below the slope (6); the bottom of the reaction container (1) is provided with a discharge pipe (9), and the discharge pipe (9) is connected with the slope (6).

2. The device for plasma degradation of mycotoxins in dried fruit of claim 1, wherein: the plasma gas generating device (7) comprises a protective shell (10), a quartz tube (11), a spiral electrode (13) and a grounding electrode (12), wherein the quartz tube (11) is arranged in the protective shell (10), the outer wall of the quartz tube (11) is coated with the grounding electrode (12), the spiral electrode (13) is arranged in the quartz tube (11), and the top of the quartz tube (11) is fixedly connected with the aeration head (8).

3. A device for plasma degradation of mycotoxins in dried fruit according to claim 2, wherein: the plasma gas generating device is characterized in that an air inlet pipe (14) is arranged at the bottom of the plasma gas generating device (7), the air inlet pipe (14) is connected with an air pump (16) at the other end of the plasma gas generating device, a silica gel column (15) is arranged on the air inlet pipe (14) between the air pump (16) and the plasma gas generating device, and an exhaust pipe (17) is arranged at the top of the reaction container (1).

4. A device for plasma degradation of mycotoxins in dried fruit according to claim 3, wherein: a supporting plate (18) is arranged on the upper side in the reaction container (1), and the discharging pipe (4) is fixedly connected with the reaction container (1) through the supporting plate (18); a motor (20) is fixedly arranged on the supporting plate (18), a rotary table (21) is fixedly connected to an output shaft of the motor (20), and the rotary table (21) is arranged between the hopper (2) and the blanking pipe (4); and a material leakage opening (22) is formed in the rotary disc (21).

5. A device for plasma degradation of mycotoxins in dried fruit according to claim 4, wherein: the discharge opening (22) is arc-shaped, the arc-shaped circle center of the discharge opening (22) coincides with the axis of the motor (20), and the width of the discharge opening (22) is larger than the diameter of the blanking pipe (4).

6. A device for plasma degradation of mycotoxins in dried fruit according to claim 4, wherein: and a through hole (19) is formed in one side, close to the exhaust pipe (17), of the support plate (18).

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