CN115540564B - Octagonal continuous drying device and process - Google Patents
Octagonal continuous drying device and process Download PDFInfo
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- CN115540564B CN115540564B CN202211049937.9A CN202211049937A CN115540564B CN 115540564 B CN115540564 B CN 115540564B CN 202211049937 A CN202211049937 A CN 202211049937A CN 115540564 B CN115540564 B CN 115540564B
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- 235000008227 Illicium verum Nutrition 0.000 claims abstract description 59
- 238000007599 discharging Methods 0.000 claims description 20
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Classifications
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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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
-
- 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
- F26B25/006—Separating volatiles, e.g. recovering solvents from dryer exhaust gases
Abstract
The invention discloses an octagonal continuous drying device which comprises a drying section I, a drying section II, a drying section III and a drying section IV, wherein the drying section I, the drying section II, the drying section III and the drying section IV are stacked from top to bottom, adjacent drying sections are communicated through openings, and the openings are staggered; a feed inlet is arranged on the left side of the drying zone I; a discharge hole is formed in the left side of the bottom of the drying zone IV; the drying section I, the drying section II, the drying section III and the drying section IV are correspondingly and horizontally provided with a conveying belt I, a conveying belt II, a conveying belt III and a conveying belt IV; the conveying direction of the conveyor belt in the adjacent drying section is opposite. The invention also discloses a continuous drying process for the star anise: steam or hot air is introduced through the coil pipe, and the temperature of the drying section is controlled. The invention can realize continuous drying, reduce cost and improve efficiency and product quality.
Description
Technical Field
The invention belongs to the technical field of octagon processing, and particularly relates to an octagon continuous drying device and process.
Background
The star anise (school name: illIcIumverumhook. F.) is a plant of the genus Anise, the tree height can reach 20m, and the star anise is a special spice and medicinal tree species with quick growth, long service life and high economic value in the southern subtropical region of China. The star anise fruit is usually integrated by eight apophyseal fruits. The fruit is light brown or reddish brown, the pericarp is fat, and the front end of the single-petal fruit is blunt or blunt-tipped. Has strong fragrance and sweet taste. The star anise fruit is a famous flavoring spice, has fragrant and sweet taste, can be directly used in daily flavoring, such as stewing, boiling, pickling, marinating, soaking and the like, can be directly processed into spiced flavoring powder, can be used as a flavoring, is also used for medicine, contains aromatic oil, fatty oil, protein, resin and the like, has the functions of dispelling wind and regulating qi and regulating stomach, regulating stomach and the like, has the effects of warming yang and dispelling cold, regulating qi and relieving pain in traditional medicines, is used for treating middle-cold vomiting, abdominal cold pain, stomach distension and the like, and also has the functions of invigorating stomach, dispelling wind, easing pain, regulating middle-cold and regulating qi, dispelling cold and dampness, treating dyspepsia, neurasthenia and the like. Can also be used as an important raw material of daily chemical products such as perfume, toothpaste, soap, cosmetics and the like in industry.
In the prior art, the drying method of the star anise has the following problems: 1. intermittent drying is mainly performed, and usually, the green-removing is performed firstly, and the green-removing is performed after the green-removing is put into an oven for drying, so that the method has low yield, low intelligent degree and high cost. 2. The heating temperature is too high, the heating temperature is not easy to control by the traditional process drying technology, the heating temperature is not easy to be uniform, and the drying temperature is often higher. 3. The drying time is too long, and the quality of the product is not high. Traditional heating stoving relies on the heat, heats the material through conduction, convection current and thermal radiation, and this kind of stoving process from outside to inside has prolonged the stoving time of octagonal, and drying efficiency is lower, and the cost is higher 4 the stoving is only gone on under constant temperature, and the stoving reaction of octagonal is incomplete, and the product quality is lower.
Chinese patent (application number: CN 201811185615.0) discloses an octagonal dryer which utilizes a rotatable and liftable pressing plate to rotatably dry the octagonal, has high drying efficiency, but cannot continuously dry.
Chinese patent (application number: CN 202111624694.2) discloses an intelligent star anise drying integrated machine, which completes the fixation and drying procedures of star anise in a drying room body at one time, is convenient for realizing large-scale production, has high degree of automation, prevents the mildew problem of star anise, improves the production quality of star anise, meets the food sanitation requirement, and ensures that the drying reaction of star anise is incomplete due to constant temperature and humidity in a drying room during drying.
Disclosure of Invention
The invention aims to provide an octagonal continuous drying device and process, which can solve the technical problems of low yield, poor quality and high cost of the prior art of octagonal drying, realize continuous drying, reduce the cost and improve the efficiency and the product quality.
In order to solve the problems, the following technical proposal is provided
The octagonal continuous drying device comprises a drying section I, a drying section II, a drying section III and a drying section IV, wherein the drying section I, the drying section II, the drying section III and the drying section IV are stacked from top to bottom, adjacent drying sections are communicated with each other through openings, and the openings are staggered with each other; a feed inlet is arranged on the left side of the drying section I; a discharge hole is formed in the left side of the bottom of the drying section IV; the drying section I, the drying section II, the drying section III and the drying section IV are correspondingly and horizontally provided with a conveying belt I, a conveying belt II, a conveying belt III and a conveying belt IV;
the conveying directions of the conveying belts in the adjacent drying sections are opposite, so that the discharge ends of the conveying belts respectively correspond to the openings of the drying sections, and materials can be conveyed to the discharge openings through the conveying belts I, II, III and IV in sequence.
Further, the heating system comprises a coil pipe; the coil pipe is arranged inside the conveyor belt and externally connected with hot air or steam.
Further, the drying machine also comprises a humidity controller, wherein the humidity controller is arranged on the outer front side wall of the drying section and is respectively positioned above the corresponding conveyor belt.
Further, the device also comprises a cell fluid recovery device; the cell fluid recovery device comprises an exhaust fan, a refrigerant machine and a recovery tank; the exhaust fan is arranged at the top of the drying section I and is connected with the humidity controller; the refrigerant machine and the recovery tank are arranged on the right side of the drying section; the refrigerant machine is connected with the exhaust fan; the recovery tank is connected with a refrigerant machine.
Further, the feeding device comprises a feeding belt and a raw material disc; the upper end of the feeding belt extends to the upper part of the left end of the conveying belt I through the feeding hole, and the lower end of the feeding belt is positioned below the raw material tray.
Further, the device also comprises a discharging device, wherein the discharging device comprises a discharging belt and a collecting box; the discharging belt is horizontally arranged, the left end of the discharging belt is positioned below the discharging hole, and the right end of the discharging belt is positioned above the material collecting box.
Further, still include the baffle, the baffle is located stoving interval I, the opening right side of stoving interval III and is located stoving workshop II opening left side right slope respectively, and lower extreme downwardly extending to the conveyer belt top in next stoving interval, makes the material fall down to the opening and get into the conveyer belt in next stoving interval.
The continuous star anise drying process is characterized in that the continuous star anise drying device is used, and the temperature in a drying interval I is controlled to be 80-100 ℃; the temperature in the drying interval II is 50-60 ℃; the temperature in the drying section III is 60-80 ℃; the temperature in the drying section IV is 80-100 ℃.
Further, the humidity in the drying section I is controlled to be 90-100%; the humidity in the drying section II is 90-100%; the humidity in the drying section III is 70-80%; the humidity in the drying section IV is 20-40%.
Further, the conveying speed of the conveying belt I is controlled to be 0.05-0.1m/s; the conveying speed of the conveying belt II is 0.01-0.05m/s; the speed of the conveyor belt III is 0.01-0.05m/s; the speed of the conveyor belt IV is 0.05-0.1m/s.
The continuous drying device of the invention has the working mode that:
placing the star anise into a raw material tray, wherein the raw material tray is provided with an outlet, the star anise falls onto a feeding belt from the outlet, the feeding belt sends the star anise onto a conveying belt I of a drying section I through a feeding port, when the conveying belt I conveys the star anise to the right end, the star anise falls onto a conveying belt II of a drying section II through an opening, the conveying belt II conveys the star anise to the left end, the star anise falls onto a conveying belt III of a drying section III, the conveying belt III conveys the star anise to the right end, the star anise falls onto a conveying belt IV of a drying section IV, the conveying belt IV conveys the star anise to the left end, the star anise is conveyed to a discharging port, the star anise falls onto a discharging belt and is conveyed to a material collecting box through the discharging belt; simultaneously, the heating system is used for introducing steam or hot air into the coil, the conveyer belt is made of a stainless steel net, the aperture of the conveyer belt is smaller than that of the star anise fruits, and the temperature in the drying section can be controlled through the steam or hot air in the coil; the humidity controller controls the humidity in the drying section; the conveyor belt outer control system is used for adjusting the conveying speed of the conveyor belt;
the air drawn by the humidity controller is pumped into the refrigerant machine by the exhaust fan, and the cell liquid is obtained after the air is cooled by the refrigerant machine and is sent into the recovery tank.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, four drying sections are arranged, and the conveyor belt is arranged in each drying section, so that the star anise can enter different drying sections in sequence, different drying processes are carried out in different drying sections, continuous drying is realized, the drying of the star anise can be divided into different stages, different reaction conditions are controlled for different stages, high-quality drying of the star anise can be realized, compared with the traditional intermittent drying method, the labor cost is reduced, the need of enzyme deactivation and drying is eliminated, the drying time is reduced, the treatment capacity is improved, the drying efficiency is improved, and the product yield is improved; through set up the coil pipe in the conveyer belt to set up humidity controller, can accurate control every layer of conveyer belt's temperature and humidity, and be convenient for control, intelligent degree is high, can make the star anise on every layer of conveyer belt obtain the most suitable environmental condition in different stages, and the product quality that obtains is good, output is high, improves economic benefits.
2. According to the invention, by arranging the cell liquid recovery device, the volatile cell liquid of the star anise in the drying process can be recovered, so that the economic benefit is further improved.
3. In the process, the temperature and the humidity of each drying section and the transmission speed of a transmission belt are controlled, so that the drying subdivision of the star anise is divided into four stages of fixation, conversion reddening, deep conversion reddening and drying, and the optimal reaction condition of the star anise is controlled in each stage, so that the star anise can obtain the optimal reaction state in each stage, and the finally obtained dried star anise has high yield, good quality, excellent dried star anise shape, good color and sufficient fragrance.
4. The invention can dry a plurality of star anises, such as scarlet star anise, spring flower and horn branch energy, and can dry by using the continuous drying device and the continuous drying process, so that the obtained product has good quality and high economic benefit.
Drawings
FIG. 1 is a schematic diagram of the structure of a physiological and biochemical reaction apparatus according to the present invention;
FIG. 2 is a schematic diagram showing the structure of the cell sap recovery apparatus of the present invention;
FIG. 3 is a schematic view of the structure of the conveyor belt of the present invention;
the numbers and designations in the figures are as follows:
1-a drying zone I; 2-a drying zone II; 3-a drying zone III; 4-a drying zone IV; 5-opening; 6-a conveyor belt I; 7-a conveyor belt II; 8-conveyor III; 9-a conveyor belt IV; 10-a feed inlet; 11-a discharge hole; 12-coil pipe; 13-humidity controller; 14-exhaust fan; 15-a refrigerant machine; 1 6-recovery tank; 17-a feed belt; 18-a raw material tray; 19-a discharge belt; 20-a material collecting box; 21-baffle.
Detailed Description
Before the embodiments of the invention are explained in further detail, it is to be understood that the invention is not limited in its scope to the particular embodiments described below; it is also to be understood that the terminology used in the examples of the invention is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the invention.
Example 1
The working process of the embodiment is as follows:
placing the star anise into a raw material tray 18, wherein the raw material tray is provided with an outlet, the star anise falls onto a feeding belt 17 from the outlet, the feeding belt 17 sends the star anise to a conveying belt I6 of a drying section I1 through a feeding hole 10, when the conveying belt I6 conveys the star anise to the right end, the star anise falls onto a conveying belt II 7 of a drying section II 2 through an opening 5, the conveying belt II 7 conveys the star anise to the left end, the star anise falls onto a conveying belt III 8 of a drying section III 3, the conveying belt III 8 conveys the star anise to the right end, the star anise falls onto a conveying belt IV 9 of a drying section IV 4, the conveying belt IV 4 conveys the star anise to the left end, the star anise is conveyed to a discharging hole 11, the star anise falls into a discharging belt 19 and is conveyed to an aggregate bin 20 through the discharging belt 19; simultaneously, the heating system is used for introducing steam or hot air into the coil 12, the conveyer belt is made of a stainless steel net, the aperture of the conveyer belt is smaller than that of the star anise fruits, and the temperature in a drying section can be controlled through the steam or hot air in the coil 12; the humidity controller 13 controls the humidity in the drying section; the conveyor belt outer control system is used for adjusting the conveying speed of the conveyor belt;
the air drawn by the humidity controller 13 is drawn into the refrigerant machine 15 by the air exhauster 14, and the cell liquid is obtained after the air is cooled by the refrigerant machine 15, and then the cell liquid is sent into the recovery tank 16.
The continuous octagonal drying process adopts the octagonal drying device and comprises the following steps: the temperature of the drying section I1 is controlled to be 90 ℃, the humidity is controlled to be 100%, and the conveying speed of the conveying belt I6 is controlled to be 0.1m/s; controlling the temperature of a drying section II 2 to be 55 ℃, the humidity to be 95% and the conveying speed of a conveying belt II 7 to be 0.03m/s; controlling the temperature of a drying section III to be 80 ℃, the humidity to be 75% and the conveying speed of a conveying belt III 8 to be 0.02m/s; the temperature of the drying section IV 4 is controlled to be 95 ℃, the humidity is controlled to be 35%, and the conveying speed of the conveying belt IV 97 is controlled to be 0.06m/s.
Example 2
An octagonal continuous drying device has the same structure and working process as in the embodiment 1.
The continuous octagonal drying process adopts the continuous drying device and comprises the following steps: the temperature of the drying section I1 is controlled to be 100 ℃, the humidity is controlled to be 95%, and the conveying speed of the conveying belt I6 is controlled to be 0.05m/s; controlling the temperature of a drying section II 2 to be 60 ℃, the humidity to be 90% and the conveying speed of a conveying belt II 7 to be 0.01m/s; controlling the temperature of a drying section III 3 to be 65 ℃, the humidity to be 80% and the conveying speed of a conveying belt III 8 to be 0.03m/s; the temperature of the drying section IV 4 is controlled to be 90 ℃, the humidity is controlled to be 20%, and the conveying speed of the conveying belt IV 9 is controlled to be 0.08m/s.
Example 3
An octagonal continuous drying device has the same structure and working process as in the embodiment 1.
The continuous octagonal drying process adopts the continuous drying device and comprises the following steps: the temperature of the drying section I1 is controlled to be 80 ℃, the humidity is controlled to be 100%, and the conveying speed of the conveying belt I6 is controlled to be 0.08m/s; controlling the temperature of a drying section II 2 to be 50 ℃, the humidity to be 95% and the conveying speed of a conveying belt II 7 to be 0.02m/s; controlling the temperature of a drying section III 3 to be 70 ℃, the humidity to be 70% and the conveying speed of a conveying belt III 8 to be 0.04m/s; the temperature of the drying section IV 4 is controlled to be 85 ℃, the humidity is controlled to be 30%, and the conveying speed of the conveying belt IV 9 is controlled to be 0.1m/s.
Example 4
An octagonal continuous drying device has the same structure and working process as in the embodiment 1.
The continuous octagonal drying process adopts the continuous drying device and comprises the following steps: the temperature of the drying section I1 is controlled to be 85 ℃, the humidity is controlled to be 90%, and the conveying speed of the conveying belt I6 is controlled to be 0.06m/s; controlling the temperature of a drying section II 2 to be 50 ℃, the humidity to be 1% and the conveying speed of a conveying belt II 7 to be 0.05m/s; controlling the temperature of a drying section III 3 to be 60 ℃, the humidity to be 70% and the conveying speed of a conveying belt III 8 to be 0.01m/s; the temperature of the drying section IV 4 is controlled to be 100 ℃, the humidity is controlled to be 25%, and the conveying speed of the conveying belt IV 9 is controlled to be 0.05m/s.
Example 5
An octagonal continuous drying device has the same structure and working process as in the embodiment 1.
The continuous octagonal drying process adopts the continuous drying device and comprises the following steps: the temperature of the drying section I1 is controlled to be 95 ℃, the humidity is controlled to be 90%, and the conveying speed of the conveying belt I6 is controlled to be 0.07m/s; controlling the temperature of a drying section II 2 to be 55 ℃, the humidity to be 1% and the conveying speed of a conveying belt II 7 to be 0.04m/s; controlling the temperature of a drying section III 3 to be 75 ℃, the humidity to be 80% and the conveying speed of a conveying belt III 8 to be 0.05m/s; the temperature of the drying section IV 4 is controlled to be 80 ℃, the humidity is controlled to be 40%, and the conveying speed of the conveying belt IV 9 is controlled to be 0.09m/s.
Comparative example 1
Substantially the same as in example 3, except that the drying section ii 2 and the conveyor ii 7, the drying section iii 3 and the conveyor iii 8, the drying section iv 4 and the conveyor iv 9 are not included.
Comparative example 2
Substantially the same as in example 3, except that the drying section i 1 and the conveyor i 6, the drying section ii 2 and the conveyor ii 7, the drying section iii 3 and the conveyor iii 8 are not included.
Comparative example 3
Substantially the same as in example 3, except that the drying section ii 2 and the conveyor ii 7 are not included.
Comparative example 4
Substantially the same as in example 3, except that the drying section iii 3 and the conveyor iii 8 are not included.
Comparative example 5
Substantially the same as in example 3, except that the drying section ii 2 and the conveyor ii 7, the drying section iii 3 and the conveyor iii 8 are not included.
Comparative example 6
Adopting a traditional intermittent drying method, namely, firstly carrying out enzyme deactivation, and then putting the enzyme deactivation into a drying oven for drying; the drying temperature and humidity were the same as those in the drying section I1 and the conveyor belt I6 in example 3.
1. Anise drying sensory experiment
The star anise harvested in autumn maturity stage was subjected to a drying treatment according to the drying process of examples 1-6 and comparative examples 1-6, and sensory test results were recorded.
Table 1 results of the sensory drying test of Anise
| Experimental items | Color of | Smell of | Fruit shape |
| Example 1 | Brownish red | Has strong fragrance | No blackening and mildew |
| Example 2 | Brownish red | Has strong fragrance | No blackening and mildew |
| Example 3 | Reddish brown | Has strong fragrance | No blackening and mildew |
| Example 4 | Brownish red | Has strong fragrance | No blackening and mildew |
| Example 5 | Reddish brown | Has strong fragrance | No blackening and mildew |
| Comparative example 1 | With black or brown colour | Light smell | Has blackening and mildew |
| Comparative example 2 | Dark brown | Light smell | Has no blackening and mildew |
| Comparative example 3 | Brown color | Light smell | Does not cause blackening and mildew |
| Comparative example 4 | Brown color | Light smell | Does not cause blackening and mildew |
| Comparative example 5 | Light brown | Light smell | Has blackening and mildew |
| Comparative example 6 | Light brown | Light smell | Does not cause blackening and mildew |
As is clear from Table 1, the obtained star anise has brownish red or reddish brown color, strong fragrance, no blackening and mildew of fruit shape and good quality by adopting the continuous drying device and process of the embodiments 1-4.
Compared with example 3, comparative example 1 was dried at 80 ℃ and high humidity, comparative example 2 was dried at similar 85 ℃ and lower humidity, and the color, flavor, and shape of the star anise were all poor; this is because comparative examples 1-2 only set one drying section, which corresponds to constant temperature drying without deactivation, and thus the quality of the dried star anise is low.
Compared with example 3, the steps of respectively reducing the intermediate temperature and the humidity in comparative example 3 and comparative example 4 are performed for drying, the drying reaction of the star anise is not performed completely, the color and the flavor of the star anise are light, and the shape of the fruit is not changed obviously; comparative example 5 was not dried through transition of intermediate temperature and humidity, and the color of the octagon was lighter than comparative examples 3 and 4, and the fruit shape was also deteriorated.
Compared with example 3, comparative example 6 adopts the conventional intermittent drying method under the same temperature and humidity conditions, the green-removing and drying are carried out first, the drying environment is constant at 80 ℃ and high humidity, and the drying reaction can not be completely carried out, and the color and the fragrance are poor although the fruit shape is not changed obviously.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (7)
1. A continuous drying process for star anise is characterized in that: the octagonal continuous drying device comprises a drying section I (1), a drying section II (2), a drying section III (3) and a drying section IV (4), wherein the drying section I (1), the drying section II (2), the drying section III (3) and the drying section IV (4) are stacked from top to bottom, adjacent drying sections are communicated with each other through openings (5), and the openings (5) are staggered with each other; a feed inlet (10) is arranged on the left side of the drying section I (1); a discharge hole (11) is formed in the left side of the bottom of the drying section IV (4); the conveyor belt I (6), the conveyor belt II (7), the conveyor belt III (8) and the conveyor belt IV (9) are correspondingly and horizontally arranged in the drying section I (1), the drying section II (2), the drying section III (3) and the drying section IV (4);
the conveying directions of the conveying belts in the adjacent drying sections are opposite, so that the discharge ends of the conveying belts respectively correspond to the openings (5) in the drying sections, and materials can be conveyed to the discharge port (11) through the conveying belt I (6), the conveying belt II (7), the conveying belt III (8) and the conveying belt IV (9) in sequence;
controlling the temperature in the drying section I (1) to be 80-100 ℃; the temperature in the drying section II (2) is 50-60 ℃; the temperature in the drying section III (3) is 60-80 ℃; the temperature in the drying section IV (4) is 80-100 ℃;
the humidity in the drying section I (1) is controlled to be 90-100%; the humidity in the drying section II (2) is 90-100%; the humidity in the drying section III (3) is 70-80 percent; the humidity in the drying section IV (4) is 20-40%;
controlling the conveying speed of the conveying belt I (6) to be 0.05-0.1m/s; the conveying speed of the conveying belt II (7) is 0.01-0.05m/s; the speed of the conveyor belt III (8) is 0.01-0.05m/s; the speed of the conveyor belt IV (9) is 0.05-0.1m/s.
2. The continuous drying process for octagons as claimed in claim 1, wherein: the heating system comprises a coil pipe (12); the coil pipe (12) is arranged inside the conveyor belt and externally connected with hot air or steam.
3. The continuous drying process for octagons as claimed in claim 1, wherein: the drying machine also comprises a humidity controller (13), wherein the humidity controller (13) is arranged on the outer front side wall of the drying section and is respectively positioned above the corresponding conveyor belt.
4. The continuous drying process for octagons as claimed in claim 1, wherein: the device also comprises a cell fluid recovery device; the cell sap recovery device comprises an exhaust fan (14), a refrigerant machine (15) and a recovery tank (16); the exhaust fan (14) is arranged at the top of the drying section I (1) and is connected with the humidity controller (13); the refrigerant machine (15) and the recovery tank (16) are arranged on the right side of the drying section; the refrigerant machine (15) is connected with the exhaust fan (14); the recovery tank (16) is connected with a refrigerant machine (15).
5. The continuous drying process for octagons as claimed in claim 1, wherein: the feeding device comprises a feeding belt (17) and a raw material disc (18); the upper end of the feeding belt (17) extends to the upper part of the left end of the conveying belt I (6) through the feeding hole (10), and the lower end of the feeding belt is positioned below the raw material disc (18).
6. The continuous drying process for octagons as claimed in claim 1, wherein: the device also comprises a discharging device, wherein the discharging device comprises a discharging belt (19) and a collecting box (20); the discharging belt (19) is horizontally arranged, the left end of the discharging belt is positioned below the discharging hole (11), and the right end of the discharging belt is positioned above the material collecting box (20).
7. The continuous drying process for octagons as claimed in claim 1, wherein: still include baffle (21), baffle (21) are located stoving interval I (1) respectively to the slope left, and opening (5) right side and right slope in stoving workshop II opening (5) left side of stoving interval III (3), and lower extreme downwardly extending to next stoving interval's conveyer belt top, make the material fall to opening (5) and get into next stoving interval's conveyer belt.
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