CN107036424B - Fish meal drying and dehumidifying device - Google Patents
Fish meal drying and dehumidifying device Download PDFInfo
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- CN107036424B CN107036424B CN201710364951.0A CN201710364951A CN107036424B CN 107036424 B CN107036424 B CN 107036424B CN 201710364951 A CN201710364951 A CN 201710364951A CN 107036424 B CN107036424 B CN 107036424B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
- F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N17/00—Apparatus specially adapted for preparing animal feeding-stuffs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/06—Controlling, e.g. regulating, parameters of gas supply
- F26B21/08—Humidity
- F26B21/086—Humidity by condensing the moisture in the drying medium, which may be recycled, e.g. using a heat pump cycle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/001—Handling, e.g. loading or unloading arrangements
- F26B25/002—Handling, e.g. loading or unloading arrangements for bulk goods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a fish meal drying and dehumidifying device, which comprises a first independent space, a second independent space and a third independent space, wherein the first independent space comprises a conveying part, the conveying part comprises a conveying part, and materials needing drying and dehumidifying are placed on the conveying part; and the air exhaust body comprises a first air exhaust piece, the first air exhaust piece is connected with the lower end of the first independent space and comprises a protection piece and a first air exhaust pipe, hot air is introduced into the first independent space through the first air exhaust pipe, and the materials on the conveying piece are dried and dehumidified. The invention adopts closed circulation to dehumidify, has no exhaust gas and odor emission in the dehumidification process, does not need external heat supply, has simple installation and short debugging period, and realizes the average electro-dehydration of 3.2-3.4L at 1 degree. The whole drying and dehumidifying production line can process 25-150 tons of high-moisture fish meal squeezed wet materials every day, the production line can increase or reduce the yield according to the requirements of users, is not influenced by the temperature and the humidity of the external environment, and is suitable for the use requirements of drying and dehumidifying the fish meal in various regions.
Description
Technical Field
The invention relates to the technical field of refrigeration air conditioners, in particular to a fish meal drying and dehumidifying device.
Background
At present, the fully-dehydrated fish meal is mostly dried by secondary steam in the fish meal processing industry, half-dehydrated or full-fat fish meal is generally dried by 3 times of steam, and finally, the high-temperature fish meal is cooled.
The traditional production process and equipment usually have high steam consumption, large discharge amount of fishy waste heat steam, large treatment difficulty and poor effect. And the traditional mode adopts long-time and high-temperature drying, so that the produced fish meal has low quality, amino acid in the fish meal is greatly damaged, the content of effective protein is low, and the cost performance of the product cannot be improved. Meanwhile, the operation and control of staff are difficult, and the equipment maintenance cost is high.
Disclosure of Invention
This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. In this section, as well as in the abstract and title of the application, simplifications or omissions may be made to avoid obscuring the purpose of the section, the abstract and the title, and such simplifications or omissions are not intended to limit the scope of the invention.
The invention is provided in view of the above and/or the problems existing in the prior art of drying and dehumidifying fish meal.
Therefore, the invention provides a device for drying and dehumidifying fish meal, which realizes intelligent transmission, floor area saving, environmental protection and no waste gas emission in a closed circulation mode.
In order to solve the technical problems, the invention provides the following technical scheme: a fish meal drying and dehumidifying device comprises a first independent space, wherein the first independent space comprises a conveying part and a conveying part, and materials to be dried and dehumidified are placed on a conveying belt and conveyed; and the air exhaust body comprises a first air exhaust piece, the first air exhaust piece is connected with the lower end of the first independent space and comprises a protection piece and a first air exhaust pipe, the protection piece is arranged above the first air exhaust pipe, hot air is introduced into the first independent space through the first air exhaust pipe, and the materials on the conveying belt are dried and dehumidified.
As a preferable scheme of the fish meal drying and dehumidifying device, the fish meal drying and dehumidifying device comprises the following steps: the protection part comprises a fixing frame which is matched with the inner diameter of the first exhaust pipe and comprises a first bulge; the supporting frame is connected with the fixing frame, and a baffle is arranged at the top end of the supporting frame; the blocking piece comprises an arc-shaped piece and is connected with the baffle; and the connecting shaft is connected with the arc-shaped sheet and the baffle.
As a preferable scheme of the fish meal drying and dehumidifying device, the fish meal drying and dehumidifying device comprises the following steps: be equipped with the groove on the first blast pipe, first arch passes through the groove cooperation is blocked, and is spacing to the up-and-down motion of protection piece.
As a preferable scheme of the fish meal drying and dehumidifying device, the fish meal drying and dehumidifying device comprises the following steps: the protection piece further comprises a bending piece, and the bending piece is connected with the arc-shaped piece and limits the left-right movement of the protection piece.
As a preferable scheme of the fish meal drying and dehumidifying device, the fish meal drying and dehumidifying device comprises: the air exhaust body further comprises a second air exhaust piece which is connected with the upper portion of the first independent space, the second air exhaust piece comprises an air suction piece and a second air exhaust pipe, the air suction piece is connected with the first independent space, and damp and hot air is exhausted through the second air exhaust pipe.
As a preferable scheme of the fish meal drying and dehumidifying device, the fish meal drying and dehumidifying device comprises: still include, dry the dehumidification piece, one end with the first piece of airing exhaust is connected, the other end with the second piece of airing exhaust is connected.
As a preferable scheme of the fish meal drying and dehumidifying device, the fish meal drying and dehumidifying device comprises: the drying and dehumidifying part comprises an evaporating part and a second air exhausting part, wherein the evaporating part is connected with the second air exhausting part and changes the heat absorbed by the air from a liquid state to a gaseous state, and most of condensed water in the air is discharged due to the cooling of the air; the condensing part is connected with the evaporating part through a compressing part; the compression piece is connected with the evaporation piece at one end and the condensation piece at the other end, receives low-pressure refrigeration steam from the evaporation piece, boosts the low-pressure refrigeration steam and then is connected with the condensation piece; and one end of the expansion piece is connected with the condensation piece, the other end of the expansion piece is connected with the evaporation piece, and the high-pressure refrigerant liquid flowing out of the condensation piece flows into the evaporation piece after being depressurized by the expansion piece.
As a preferable scheme of the fish meal drying and dehumidifying device, the fish meal drying and dehumidifying device comprises: the first independent space further comprises a material conveying port, wherein the material conveying port comprises a first port and a second port, the first port conveys materials into the first independent space, and the materials are output from the second port after being dried and dehumidified.
As a preferable scheme of the fish meal drying and dehumidifying device, the fish meal drying and dehumidifying device comprises: the conveying piece comprises a first conveying belt and a second conveying belt, the first conveying belt is arranged above the second conveying belt, materials needing drying and dehumidifying enter the first independent space from the first port, and the materials are conveyed out from the second port after being dried and dehumidified.
The invention has the beneficial effects that: the invention adopts closed dehumidification, no waste gas and odor are discharged in the dehumidification process, no external heat supply (no steam consumption) is needed, the installation is simple, the debugging period is short, and the average 1-degree electric dehydration is 3.2-3.4L. The whole drying and dehumidifying production line can process 25-150 tons of high-moisture fish meal squeezed wet materials every day, the production line can increase or reduce the yield according to the requirements of users, is not influenced by the temperature (low temperature in winter) and the humidity (humidity in summer) of the external environment, and is suitable for the use requirements of drying and dehumidifying the fish meal in various regions.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:
FIG. 1 is a schematic view of the overall structure of a first embodiment of a fish meal drying and dehumidifying apparatus according to the present invention;
fig. 2 is a schematic view of the overall structure of the shielding part in the second embodiment of the fish meal drying and dehumidifying apparatus according to the present invention;
fig. 3 is a partial structural view of the shielding part in the second embodiment of the fish meal drying and dehumidifying apparatus according to the present invention;
fig. 4 is a schematic view of the overall structure of the arc-shaped sheet provided by the fish meal drying and dehumidifying device of the present invention according to the second embodiment;
fig. 5 is a schematic view of the whole structure of the exhaust gas provided by the fish meal drying and dehumidifying device according to the third embodiment of the present invention;
fig. 6 is a schematic cross-sectional view of the whole structure of the exhaust gas provided by the fish meal drying and dehumidifying device according to the third embodiment of the present invention;
FIG. 7 is a schematic view of the overall structure of a fourth embodiment of the fish meal drying and dehumidifying device according to the present invention;
fig. 8 is a schematic view of the overall structure of the drying and dehumidifying part in the fourth embodiment provided by the fish meal drying and dehumidifying device of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanying figures of the present invention are described in detail below.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced otherwise than as specifically described herein, and it will be appreciated by those skilled in the art that the present invention may be practiced without departing from the spirit and scope of the present invention and that the present invention is not limited by the specific embodiments disclosed below.
Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.
Referring to fig. 1, a first embodiment of the fish meal drying and dehumidifying apparatus of the present invention, the main body of which comprises a first independent space M including a conveying part 400 and an air exhaust body 200, placing the material to be dried and dehumidified on the conveying part 400, delivering hot air to the conveying part 400 through the air exhaust body 200, and drying and dehumidifying the material.
The conveying part 400 comprises a conveying part 401, the materials to be dried and dehumidified are placed on the conveying part 401, and the materials are dried simultaneously in the process of conveying the materials, and preferably, the conveying part 400 further comprises a driving part 402, wherein the driving part 402 can be driven by a motor, an electromagnetic or an electric, and the conveying part 401 is enabled to convey forwards through power provided by the driving part 402.
The air discharging body 200 includes a first air discharging member 201, which is disposed at a lower end of the first independent space M and includes a protection member 201a and a first air discharging pipe 201c, the protection member 201a can prevent the material to be dried and dehumidified or the water drops which are not dried on the material from dropping into the first air discharging pipe 201c in the process of conveying, and the first air discharging pipe 201c can introduce the dry hot air into the first independent space M and dry the material on the conveying member 401.
Referring to 2~4, a second embodiment of the fish meal drying and dehumidifying device of the present invention is shown, which is different from the first embodiment: the protection part 201a can swing up and down, so that the speed and the efficiency of leading hot air into the first exhaust pipe 201c are not blocked, and the effect of preventing materials or water drops from dropping into the first exhaust pipe 201c is not influenced. The specific implementation scheme is as follows: referring to fig. 2, the protection member 201a includes a fixing frame 201a-1, a supporting frame 201a-2, a shielding block 201a-3, and a connecting shaft 201a-5. The fixing frame 201a-1 is buckled into the inner diameter of the first exhaust pipe 201c, that is, when the fixing frame 201a-1 is circular, the diameter of the fixing frame 201a-1 is smaller than that of the first exhaust pipe 201c, referring to fig. 3, the fixing frame 201a-1 includes a first protrusion 201a-1', and the first protrusion 201a-1' is disposed at the lower end of the edge profile of the fixing frame 201 a-1. One end of the supporting frame 201a-2 is connected to the fixing frame 201a-1, the other end (i.e., the top end) is provided with a baffle 201a-2', the baffle 201a-2' is a triangular cone, and the bottom surface of the baffle is provided with second protrusions a, in the illustration of the embodiment, the number of the second protrusions a is 4, and it should be noted that the number of the second protrusions a is the same as the number of the shielding blocks 201 a-3. Referring to fig. 2, the shielding block 201a-3 includes arc-shaped pieces 201a-3', the number of the arc-shaped pieces 201a-3' is the same as that of the second protrusion a, and taking the illustration as an example, the number of the arc-shaped pieces 201a-3' is also 4, but the remaining number is also within the protection scope of the present invention, and the function expressed in the embodiment can be realized. Two holes are formed in the arc-shaped piece 201a-3', when the arc-shaped piece 201a-3' is connected with the shielding block 201a-3, the connecting shaft 201a-5 penetrates through the two holes in the arc-shaped piece 201a-3 'and the second protrusion a, and the arc-shaped piece 201a-3' and the baffle 201a-2 'are hinged together, so that the arc-shaped piece 201a-3' can be in an opening and closing movement state. The arc-shaped pieces 201a-3 'are "fan-shaped with curvature", and the "fan-shaped with curvature" here means, referring to fig. 4, the arc-shaped pieces 201a-3' are arc-shaped with one end being a quarter and the other end being a point, and the piece-shaped piece is formed by cutting the side surface of a cone into a quarter (if the number of the arc-shaped pieces is 6, the side surface of a cone is cut into a sixth), it should be noted that, in order to make each arc-shaped piece 201a-3 'mutually and pairwise mutually carry together, no protrusion or depression occurs, that is, to ensure that all the arc-shaped pieces 201a-3' are on a plane, in this embodiment, it is preferable: the side surface of each arc-shaped piece 201a-3 'is an inclined surface, and for example, the arc-shaped pieces 201a-3' include a first side surface b and a second side surface c, and the first side surface b and the second side surface c are inclined surfaces with complementary inclination angles, preferably, the inclination angles are all 45 °.
Each arc-shaped piece 201a-3' penetrates through two holes on the arc-shaped piece 201a-3' and the second bulge a through a connecting shaft 201a-5, and the arc-shaped piece 201a-3' and the baffle plate 201a-2' are hinged together, so that the arc-shaped pieces 201a-3' can realize the opening and closing movement state. When wind comes in the first exhaust duct 201c, the thrust given by the wind makes all the arc-shaped pieces 201a-3 'move upwards, at this time, all the arc-shaped pieces 201a-3' are opened, and the wind enters the first independent space M from the passage opening, so as to dry and dehumidify the processed materials. When no wind exists, all the arc-shaped pieces 201a-3' are carried together to play a role in protection, so that materials to be processed or water drops are not dropped into the first exhaust pipe 201c.
While the hot wind is blown into the first exhaust duct 201c to give the upward moving thrust to the arc-shaped pieces 201a-3', a large force may be generated so that the protection member 201a moves up and down in the first exhaust duct 201c, and even the protection member 201a may be separated from the first exhaust duct 201c due to the excessive force. The third embodiment of the present invention restricts the movement of the protection member 201 a.
Referring to fig. 5, a third embodiment of the fish meal drying and dehumidifying apparatus of the present invention, which is different from the second embodiment, is: the first exhaust duct 201c is provided with a groove 201b, the groove 201b is engaged with the first protrusion 201a-1', and the protection member 201a further includes a bent member 201a-4 connected with the arc-shaped piece 201 a-3'. The specific implementation scheme is as follows: two sides of the first exhaust duct 201c are provided with grooves 201b, the number of the grooves 201b is the same as that of the first protrusions 201a-1', and two grooves are taken as an example in the present embodiment for specific description. The shape of the groove 201b is similar to that of an inclined dash mark in chinese, the groove 201b extends downward from the end of the first exhaust duct 201c where the protection member 201a is to be inserted, the length of the extension is less than the height of the whole protection member 201a, then the groove 201b extends a distance transversely, then the groove extends a distance vertically downward, and finally the depth of the whole groove is ensured to be less than the whole height of the protection member 201 a. The number of the bending members 201a-4 is the same as that of the slots 201b, and 2 bending members 201a-4 are disposed on any two symmetrical arc-shaped pieces 201a-3', and the distance between the connection points where the two bending members 201a-4 and the two arc-shaped pieces 201a-3' are respectively connected is larger than the diameter of the first exhaust pipe 201c. Preferably, referring to fig. 6, when the arc-shaped pieces 201a-3' are all opened, the distance between the rear ends of the two bent pieces 201a-4 is smaller than the diameter of the first exhaust duct 201c.
Before the first protrusion 201a-1 'is connected to the first exhaust duct 201c through the groove 201b, all the arc-shaped pieces 201a-3' are opened, so that the bent pieces 201a-4 connected to the arc-shaped pieces 201a-3 'are prevented from touching the side wall of the first exhaust duct 201c, and the protection piece 201a cannot move downwards along the groove 201b, thereby realizing the matching of the first protrusion 201a-1' through the groove 201 b. When the first protrusion 201a-1' moves laterally along the groove 201b, and when the first protrusion 201a-1' reaches the second downward extension (i.e., the second corner), the bending member 201a-4 "just" extends out of the first exhaust duct 201c through the groove 201b, and then moves downward to the end of the groove 201b, the first protrusion 201a-1' and the groove 201b are completely engaged, so as to limit the up-down position of the protection member 201 a. Meanwhile, since the distance between the connection points where the two bent pieces 201a to 4 are connected to the two arc-shaped pieces 201a to 3 'respectively is greater than the diameter of the first exhaust duct 201c, the distance between the tail ends of the two bent pieces 201a to 4 is smaller than the diameter of the first exhaust duct 201c, and the process of fitting the first protrusion 201a to 1' and the groove 201b is red, the bent pieces 201a to 4 extend out of the first exhaust duct 201c "just" through the groove 201b, in other words, the upper sections of the bent pieces 201a to 4 are outside the first exhaust duct 201c, and the lower sections thereof are inside the first exhaust duct 201c, the left and right positions of the shielding piece 201a are restricted by the bent pieces 201a to 4.
It should be noted that "exactly" the flexure 201a-4 passes through "exactly" the slot 201b means that the slot 201b extends laterally a distance equal to the distance between the first protrusion 201a-1' and the flexure 201 a-4.
Referring to fig. 7 and 8, a fourth embodiment of the fish meal drying and dehumidifying apparatus of the present invention is different from the third embodiment in that: also includes a drying and dehumidifying part 300 which is connected with the exhaust body 200 to form a closed cycle.
Specifically, the main body of the embodiment includes a first independent space M including a transfer part 400 and an exhaust body 200, and further includes a drying and dehumidifying part 300. The conveying part 400 comprises a conveying part 401, materials needing drying and dehumidifying are placed on the conveying part 401, and in the process of conveying the materials, the materials are dried simultaneously, preferably, the conveying part 401 comprises a first conveying belt 401a and a second conveying belt 401b, the first conveying belt 401a is arranged above the second conveying belt 401b, the area of hot air drying is increased through the first conveying belt 401a and the second conveying belt 401b, after the materials needing drying and dehumidifying are dried for one round from the first conveying belt 401a, the materials are conveyed to the second conveying belt 401b to be dried and dehumidified for the second round, and the qualified rate of products is improved. Preferably, the conveying unit 400 further includes a driving member 402, where the driving member 402 may be motor-driven, electromagnetic-driven or electric-driven, and the driving member 402 provides power to drive the conveying member 401 forward, and it should be noted that in this embodiment, the driving member 402 drives the first conveying belt 401a to rotate forward and drives the second conveying belt 401b to rotate backward, that is, the conveying directions of the first conveying belt 401a and the second conveying belt 401b are opposite.
The exhaust body 200 comprises a first exhaust member 201 and a second exhaust member 202, the first exhaust member 201 is arranged at the lower end of the first independent space M and comprises a protection member 201a and a first exhaust pipe 201c, the protection member 201a can prevent materials needing drying and dehumidifying in the conveying process or water drops which are not dried on the materials from falling into the first exhaust pipe 201c, and the first exhaust pipe 201c can introduce dry hot air into the first independent space M and dry the materials on the conveying member 401. The second exhaust member 202 is disposed above the first independent space M, and includes an air suction member 202a and a second exhaust duct 202b, wherein one end of the air suction member 202a is connected to the second exhaust duct 202b, and the other end is connected to the first independent space M, and discharges damp and hot air through the second exhaust duct 202 b.
The protection part 201a can swing up and down, so that the speed and the efficiency of leading hot air into the first exhaust pipe 201c are not blocked, and the effect of preventing materials or water drops from dropping into the first exhaust pipe 201c is not influenced. The specific implementation scheme is as follows: the protection part 201a comprises a fixed frame 201a-1, a supporting frame 201a-2, a shielding block 201a-3 and a connecting shaft 201a-5. The fixing frame 201a-1 is buckled into the inner diameter of the first exhaust pipe 201c, that is, when the fixing frame 201a-1 is circular, the diameter of the fixing frame 201a-1 is smaller than that of the first exhaust pipe 201c, the fixing frame 201a-1 includes a first protrusion 201a-1', and the first protrusion 201a-1' is disposed at the lower end of the edge profile of the fixing frame 201 a-1. One end of the supporting frame 201a-2 is connected to the fixing frame 201a-1, the other end (i.e., the top end) is provided with a baffle 201a-2', the baffle 201a-2' is in a triangular cone shape, and the bottom surface of the baffle is provided with second protrusions a, in the illustration of the embodiment, the number of the second protrusions a is 4, and it should be noted that the number of the second protrusions a is the same as the number of the shielding blocks 201 a-3. The stopper 201a-3 includes the arc-shaped pieces 201a-3', the number of the arc-shaped pieces 201a-3' is the same as that of the second protrusion a, and taking the illustration as an example, the number of the arc-shaped pieces 201a-3' is also 4, but the remaining number is also within the protection scope of the present invention, and the function expressed in the embodiment can be realized. Two holes are formed in the arc-shaped piece 201a-3', when the arc-shaped piece 201a-3' is connected with the shielding block 201a-3, the connecting shaft 201a-5 penetrates through the two holes in the arc-shaped piece 201a-3 'and the second protrusion a, and the arc-shaped piece 201a-3' and the baffle 201a-2 'are hinged together, so that the arc-shaped piece 201a-3' can be in an opening and closing movement state. The arc-shaped pieces 201a-3 'are "fan-shaped with curvature", and the "fan-shaped with curvature" here means that the arc-shaped pieces 201a-3' are arc-shaped pieces with one end being a quarter and the other end being a point, and the piece-shaped pieces are formed by cutting the side surface of a cone into a quarter shape (if the number of the arc-shaped pieces is 6, the side surface of a cone is cut into a sixth shape), it should be noted that, in order to make every two arc-shaped pieces 201a-3 'mutually mounted, no protrusion or depression occurs, that is, to ensure that all the arc-shaped pieces 201a-3' are on a plane, in this embodiment, the preferable mode is: the side surface of each arc-shaped piece 201a-3 'is an inclined surface, and for example, the arc-shaped pieces 201a-3' include a first side surface b and a second side surface c, and the first side surface b and the second side surface c are inclined surfaces with complementary inclination angles, preferably, the inclination angles are all 45 °.
Referring to fig. 8, the drying and dehumidifying part 300 has one end connected to the first exhaust part 201 and the other end connected to the second exhaust part 202, and includes an evaporation part 301, a condensation part 302, a compression part 303, and an expansion part 304. The evaporating element 301 is connected with the second air exhausting element 202, the heat of the absorbed air is changed from liquid state to gas state, the air discharges most of condensed water due to temperature reduction, and the condensing element 302 is connected with the evaporating element 301 through the compressing element 303. One end of the compression part 303 is connected with the evaporation part 301, and the other end is connected with the condensation part 302, receives low-pressure refrigeration steam from the evaporation part 301, boosts the low-pressure refrigeration steam, and then is connected with the condensation part 302. One end of the expansion part 304 is connected with the condensation part 302, and the other end is connected with the evaporation part 301, so that the high-pressure refrigerant liquid flowing out of the condensation part 302 flows into the evaporation part 301 after being depressurized by the expansion part 304.
The dehumidifying and drying are different from the traditional hot air drying in that the air circulation mode is different, and the air dehumidifying mode of the first independent space M is also different. When the wet air flows through the evaporation element 301, the low-pressure refrigerant inside absorbs the heat of the air and changes from liquid state to gaseous state, and the air discharges most of the condensed water due to temperature reduction. The low-pressure refrigerant vapor from the evaporation element 301 is pressurized by the compression element 303 and sent to the condensation element 302. When the dehumidified dry and cold air flows through the condensing element 302, the internal high-pressure refrigerant releases heat due to condensation, the external air is heated into hot air and returns to the first independent space M to continuously dry the required materials, and the high-pressure refrigerant fluid flowing out of the condensing element 302 is depressurized by the expansion element 304 and then flows into the evaporating element 301 to continue the next cycle.
The drying and heat recovery cycle is to add a heat regenerator in the drying and dehumidifying element 300, so that the temperature of the air entering the evaporating element 301 is reduced and the temperature of the air entering the condensing element 302 is increased, and the heat recovery cycle enables the cold energy of the evaporating element 301 to be used for reducing the temperature of the air (ineffective cold consumption process) and increasing the cold energy used for the temperature reduction and dehumidification process, so that the optimal evaporation temperature and the optimal dehumidification capacity for dehumidification and drying are increased.
Preferably, the first independent space M further includes a material conveying port 100, and the material conveying port 100 includes a first port 101 and a second port 102, wherein the first port 101 is disposed above the first independent space M, the second port 102 is disposed below the first independent space M, and a lower portion of the first port 101 corresponds to the first conveyor belt 401a, so that the material directly falls on the first conveyor belt 401a after being conveyed from the first port 101 after being granulated. The second port 102 is arranged below the end of the second conveyor belt 401b so that the processed material can pass directly through the second conveyor belt 401b to the second port 102. The materials are conveyed to a first conveyor belt 401a in a first independent space M through a first port 101 to be dried and dehumidified for a first round, then conveyed to a second conveyor belt 401b through the first conveyor belt 401a to be dried and dehumidified for a second round, and after the materials are dried and dehumidified in a closed circulation mode through a drying and dehumidifying part 300 and the first independent space M, the processed materials are conveyed out through a second port 102 through the second conveyor belt 401 b.
The device is dried and dehydrated in a totally closed state, no fishy smell gas is discharged, and only the discharged condensed water (clear water) with the temperature of less than or equal to 20 ℃ is convenient to dehydrate and process, and the cost is low. The total time from the water content of 45-48% of the raw material entering the drying device to the water content of less than or equal to 10% of the finished product exiting the drying device is 2.0-3.0 hours, and the drying time is short. The air temperature is not more than 75 ℃ and the material temperature is not more than 50 ℃ in the drying and dehydrating processes, so that the low-temperature drying can be ensured and the property of the fish protein is not changed.
It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (4)
1. A fish meal drying and dehumidifying device comprises a first independent space (M), and is characterized in that: said first isolated space (M) comprising,
the conveying component (400) comprises a conveying part (401), and the conveying part is used for placing the materials to be dried and dehumidified on the conveying part (401) for conveying the materials; and the number of the first and second groups,
the air exhaust body (200) comprises a first air exhaust part (201), the first air exhaust part (201) is connected with the lower end of the first independent space (M), the air exhaust body comprises a protection part (201 a) and a first air exhaust pipe (201 c), the protection part (201 a) is arranged above the first air exhaust pipe (201 c), hot air is introduced into the first independent space (M) through the first air exhaust pipe (201 c), and materials on the conveying part (401) are dried and dehumidified;
the protection part (201 a) comprises a plurality of protection parts,
the fixing frame (201 a-1) is matched with the inner diameter of the first exhaust pipe (201 c) and comprises a first bulge (201 a-1');
the supporting frame (201 a-2) is connected with the fixing frame (201 a-1), and the top end of the supporting frame is provided with a baffle (201 a-2');
the baffle block (201 a-3) comprises an arc-shaped sheet (201 a-3 ') which is connected with the baffle plate (201 a-2'); and the combination of (a) and (b),
a connecting shaft (201 a-4) connecting the arc-shaped piece (201 a-3 ') and the baffle (201 a-2');
a groove (201 b) is formed in the first exhaust duct (201 c), and the first protrusion (201 a-1') is matched and clamped through the groove (201 b) to limit the up-and-down movement of the protection piece (201 a);
the protection part (201 a) further comprises bending parts (201 a-4), the bending parts (201 a-4) are connected with the arc-shaped sheets (201 a-3') to limit the left and right movement of the protection part (201 a);
the air exhaust body (200) further comprises a second air exhaust member (202) connected with the upper part of the first independent space (M), the second air exhaust member (202) comprises an air suction member (202 a) and a second air exhaust pipe (202 b), the air suction member (202 a) is connected with the first independent space (M), and damp and hot air is exhausted through the second air exhaust pipe (202 b);
and one end of the drying and dehumidifying part (300) is connected with the first air exhaust part (201), and the other end of the drying and dehumidifying part is connected with the second air exhaust part (202).
2. The fish meal drying and dehumidifying device of claim 1, wherein: the drying and dehumidifying part (300) comprises,
the evaporation piece (301) is connected with the second air exhaust piece (202) and changes the heat of the absorbed air from liquid state to gas state, and most of condensed water in the air is discharged due to the temperature reduction of the air;
a condensing member (302) connected to the evaporating member (301) through a compressing member (303);
the compression piece (303), one end links with said evaporation element (301), another end links with said condensation piece (302), receive from said evaporation element (301) low-pressure refrigeration steam, after boosting it, link with said condensation piece (302); and (c) a second step of,
and one end of the expansion piece (304) is connected with the condensation piece (302), the other end of the expansion piece is connected with the evaporation piece (301), and the high-pressure refrigerant liquid flowing out of the condensation piece (302) flows into the evaporation piece (301) after being depressurized by the expansion piece (304).
3. The fish meal drying and dehumidifying device of claim 2, wherein: said first isolated space (M) further comprising,
and the material conveying port (100) comprises a first port (101) and a second port (102), wherein the first port (101) conveys the material into the first independent space (M), and the material is dried, dehumidified and output from the second port (102).
4. The fish meal drying and dehumidifying device of claim 3, wherein: the conveying piece (401) comprises a first conveying belt (401 a) and a second conveying belt (401 b), the first conveying belt (401 a) is arranged above the second conveying belt (401 b), materials needing drying and dehumidifying enter the first independent space (M) from the first port (101), and after the materials are dried and dehumidified, the materials are conveyed out from the second port (102).
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