CN115164563A - Medicinal material continuous temperature control drying production line - Google Patents
Medicinal material continuous temperature control drying production line Download PDFInfo
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- CN115164563A CN115164563A CN202210747028.6A CN202210747028A CN115164563A CN 115164563 A CN115164563 A CN 115164563A CN 202210747028 A CN202210747028 A CN 202210747028A CN 115164563 A CN115164563 A CN 115164563A
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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
- 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
- F26B21/001—Drying-air generating units, e.g. movable, independent of 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
- F26B23/00—Heating arrangements
- F26B23/04—Heating arrangements using electric heating
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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
- F26B25/02—Applications of driving mechanisms, not covered by another subclass
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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)
- Sustainable Development (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention discloses a medicinal material continuous temperature control drying production line, which comprises: a plurality of drying sections, wherein a rewetting section is arranged between every two adjacent drying sections; heating and drying devices are arranged in the drying section and the rewetting section; the drying section comprises: a drying oven drying the conveyor belt; the rewetting section comprises: the rewetting box is used for rewetting the conveyor belt, and the conveying direction of the rewetting conveyor belt is opposite to that of the drying conveyor belt; a temperature sensor and a humidity sensor are arranged in the drying box and the moistening box; the heating and drying device includes: an electric heater disposed at the periphery of the drying conveyor; the blowing device is opposite to the upper belt surface of the drying conveyor belt; the heating and drying device in the rewetting section has the same structure as the heating and drying device in the drying section. The invention occupies small area, can realize continuous drying of medicinal materials, keeps approximately consistent internal and external drying speeds of the medicinal materials in the drying process, has complete dried medicinal materials and can reduce cracking and crushing of the medicinal materials.
Description
Technical Field
The invention relates to the field of traditional Chinese medicine production, in particular to a continuous temperature-control drying production line for medicinal materials.
Background
The traditional Chinese medicinal materials are various in types, the production methods of different traditional Chinese medicines are the same in all parts, the drying process is generally adopted, the traditional drying method generally adopts sun drying, the drying is incomplete, moisture absorption and moisture regain are easy to occur, the drying time is long, the production quality cannot be improved, and the yield and the output cannot be increased. At present, large-scale production generally adopts drying equipment to carry out large-scale quick drying, and present drying equipment is mainly that the monomer is stoving box equipment, puts into the stoving case with the medicinal material and carries out drying process, opens the box after the stoving is accomplished and takes out the medicinal material again, is named as medicinal material quick drying device like application number CN201620817972.4 to and application number CN201420030430.3, the patent named as a medicinal material food drying equipment all adopts above-mentioned technology.
The process is characterized by low production efficiency of the traditional process, has the application number of CN201810583814.0, is named as drying equipment for treating the continuously-fed traditional Chinese medicinal materials, and discloses the following technical scheme: comprises a shell, a feed hopper, a heating jacket, a heating element and a blower; a vertical screen drum is arranged in the shell, a vertical hollow shaft is coaxially arranged in the screen drum, a plurality of air holes are uniformly formed in the side wall of the hollow shaft, and the upper end of the hollow shaft is communicated with an exhaust pipe; the spiral screen is coaxially fixed on the hollow shaft, a circle of heating sleeve is sleeved on the outer side of the shell, and an air blowing opening communicated into the shell is formed in the heating sleeve. This patent utilizes the principle of disk dryer, realizes continuous drying, but can't carry out accurate control to the drying rate temperature of medicinal material etc..
Application number is CN201910108479.3, is named as a medicinal material drying equipment, discloses following technical scheme: the drying device comprises a feeding device, a preheating device and a drying device, wherein the preheating device is arranged at the bottom of the feeding device, the drying device is arranged at the tail end of the preheating device, the drying discharge end of the feeding device is connected with the feed end of the preheating device, and the drying discharge end of the preheating device is connected with the feed end of the drying device. The invention can realize continuous operation of feeding, stirring, spreading, preheating and drying, so that the materials to be dried can not be adhered, the separation and drying effects are good, and the drying time can be shortened; feedway throws the material through the effect of blowing the material fan, treats that the stoving material gets into the feed bin afterwards and stirs and export, and swing motor can simulate the action that the raw materials was put to the people's hand, makes and treats stoving material evenly distributed on preheating the conveyer belt, and the material of being convenient for preheats, and drying device is sent into to the material after preheating, carries out microwave drying, and microwave drying is the bulk heating, and heat transfer rate is fast, can shorten the stoving time. This technical scheme is through preheating, the continuous stoving production of mode of microwave stoving, and the microwave can the bulk heating, but lacks the air and flows, and to the unable accurate control of temperature, humidity, drying rate that the medicinal material was dried, leads to easily ftractureing the medicinal material fracture even breakage after the drying very easily, and partial medicinal material appears the fracture even breakage according to the record of pharmacopeia and chinese-medicinal material commodity specification grade will directly influence medicinal material looks and drug effect.
Disclosure of Invention
In view of the above defects in the prior art, the present invention aims to provide a continuous temperature-controlled drying production line for medicinal materials, which occupies a small area, can realize continuous drying of medicinal materials, can keep the internal and external drying speeds of the medicinal materials approximately consistent during the drying process, can complete the dried medicinal materials, and can reduce cracking and crushing of the medicinal materials.
The purpose of the invention is realized by the following technical scheme:
medicinal material continuous temperature control stoving production line includes: a plurality of drying sections, wherein a rewetting section is arranged between every two adjacent drying sections; heating and drying devices are arranged in the drying section and the rewetting section;
the drying section comprises:
the drying box is provided with a drying feeding opening at the head end, and a drying feeding plate inclining downwards is arranged on the opening; the tail end of the drying box is provided with a drying discharging opening, and a drying discharging plate is obliquely and downwards arranged on the drying discharging opening;
the drying conveyor belt is arranged in the drying box; the tail end of the drying feeding plate is positioned on the upper belt surface of the drying conveyor belt, and a gap is formed between the tail end of the drying feeding plate and the upper belt surface; the head end of the drying discharge plate is positioned at the tail end of the drying conveyor belt, and the medicinal materials on the drying conveyor belt fall or slide onto the head end of the drying discharge plate under the action of gravity; the tail end of the drying discharging plate is positioned in the adjacent rewetting section;
the rewetting section comprises:
the head end of the rewetting box is provided with a rewetting material inlet, the drying discharging plate penetrates through the rewetting material inlet, and the tail part of the drying discharging plate is positioned in the rewetting box; the tail end of the rewetting box is provided with a rewetting discharging opening, and a rewetting discharging plate is arranged on the rewetting discharging opening in an upward and downward inclined manner;
the rewetting conveying belt is arranged in the rewetting box; the tail end of the drying discharging plate is positioned right above the upper belt surface of the rewetting conveyor belt, and a gap for medicine to pass through is reserved between the tail end of the drying discharging plate and the upper belt surface of the rewetting conveyor belt; the medicinal materials on the rewetting conveyor belt fall or slide to the head end of the rewetting discharge plate under the action of gravity; the tail end of the rewetting discharge plate is positioned in the adjacent drying section; the conveying direction of the rewetting conveyor belt is opposite to that of the drying conveyor belt;
the drying feeding opening, the drying discharging opening, the rewetting feeding opening and the rewetting discharging opening are respectively provided with a temperature sensor and a humidity sensor;
the heating and drying device located in the drying section comprises:
an electric heater disposed at the periphery of the drying conveyor;
the blowing device is opposite to the upper belt surface of the drying conveyor belt;
the heating and drying device in the rewetting section has the same structure as the heating and drying device in the drying section.
Furthermore, a drying feeding opening and a drying discharging opening of the drying box and a moistening returning opening and a moistening returning discharging opening of the moistening returning box are respectively provided with a flexible sealing belt for sealing the drying feeding opening and the drying discharging opening; the flexible sealing belt is erected on the adjacent drying feeding plate, drying discharging plate, rewetting feeding plate and rewetting discharging plate.
Further, the drying conveyor belt and the rewetting conveyor belt are both chain plate type conveyor belts.
Further, the drying device also comprises a preheating section which is communicated with the first drying section; the preheating section includes:
the preheating box is provided with a horizontal inlet and a horizontal outlet;
the head end of the chain plate type preheating conveyor belt penetrates through the horizontal inlet, the tail end of the chain plate type preheating conveyor belt penetrates through the horizontal outlet, and the tail end of the chain plate type preheating conveyor belt is positioned right above the drying feeding plate;
and the two microwave generators are arranged on the outer sides of the upper belt surface and the lower belt surface of the chain plate type preheating conveying belt.
Further, the drying conveyor belt and the back-moistening conveyor belt are both chain plate type conveyor belts; the two electric heaters are respectively arranged at the outer sides of the upper belt surface and the lower belt surface of the drying conveyor belt;
the electric heater includes:
the axes of the infrared heating pipes are vertical to the moving direction of the drying conveyor belt;
the light homogenizing plate is arranged between the infrared heating pipes and the belt surface of the drying conveyor belt and uniformly disperses and irradiates the heat infrared light of the infrared heating pipes to the belt surface of the drying conveyor belt; the light homogenizing plate is also provided with a plurality of through holes for hot air to flow.
Further, the blowing device includes:
the tail end of the air inlet pipe penetrates through the drying box, and the head end of the air inlet pipe is communicated with the gas pressurizer;
the two flow dispersing pipes are arranged on the upper side and the lower side of the belt surface of the drying conveyor belt and are communicated with each other; the head end of the flow dispersing pipe is communicated with the tail end of the air inlet pipe;
and the two flow guide nozzles are respectively connected with the head ends of the two flow scattering pipes, the air outlet direction points to the movement direction of the drying conveyor belt, and the air flow of the air outlet is parallel to the belt surface of the drying conveyor belt.
Further, the blowing device further includes:
the head end of the air outlet pipe is a bell mouth and is positioned in the drying box; the air outlet pipe is in heat exchange contact with an air inlet pipe in the adjacent downstream rewetting box; the contact part is a shared plate; the shared plate is provided with a notch; a sealing plate is hinged on the notch; the air outlet pipe is internally provided with a telescopic electric cylinder, the head end of the telescopic electric cylinder is hinged with the inner wall of the air outlet pipe, the tail end of the telescopic electric cylinder is hinged with the sealing plate, and the telescopic electric cylinder telescopically controls the sealing plate to rotate towards the air outlet pipe or seals the notch; the opening direction of the sealing plate is opposite to the air outlet direction of the air outlet pipe.
Furthermore, a drainage buckle plate with an opening is arranged at the notch in the air inlet pipe, and the opening of the drainage buckle plate is the same as the air inlet direction of the air inlet pipe.
Furthermore, the tail end of the air inlet pipe is provided with a temperature sensor and a humidity sensor.
Further, the head end of the air inlet pipe is communicated with a humidifying pipe, and the air pressurizer has an air dehumidifying function.
By adopting the technical scheme, the invention has the following advantages:
1. drying is carried out alternately through the drying section and the rewetting section, and the drying speed can be finely controlled, so that the inner drying speed and the outer drying speed are kept consistent as much as possible when the medicinal materials are dried, and cracking caused by too large difference of the inner drying speed and the outer drying speed is reduced. The drying process adopts the mode of electrical heating to the medicinal material heating, adds blast apparatus simultaneously and carries out surface drying.
2. The gaseous presser blows the medicinal material on the dry conveyer belt through the water conservancy diversion mouth with gaseous, and the medicinal material is close the water conservancy diversion mouth along with the dry conveyer belt, because the direction of motion of blowing direction and dry conveyer belt of water conservancy diversion mouth, the humidity of drying cabinet afterbody is less than the humidity of head, therefore its environmental humidity that contacts of medicinal material slowly reduces, can realize the slow drying of medicinal material.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
The drawings of the invention are illustrated as follows:
fig. 1 is a schematic sectional structure diagram of a continuous temperature-control drying production line for medicinal materials in this embodiment.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
FIG. 3 is a schematic view of the section B-B in FIG. 2.
Fig. 4 is an enlarged schematic view of the structure at C in fig. 1.
Fig. 5 is an enlarged schematic view of the structure at D in fig. 4.
Fig. 6 is an enlarged schematic view of a in fig. E.
In the figure: 1. a drying oven; 11. drying the feeding opening; 12. drying and discharging the material to be opened; 13. drying the feeding plate; 14. drying the discharging plate; 2. drying the conveyor belt; 3. returning to the moistening box; 31. feeding the material back to the feeding opening; 32. a material outlet is rewetted; 33. feeding the material plate back; 34. returning and moistening the discharging plate; 4. returning the conveyor belt; 51. an infrared heater; 52. a light homogenizing plate; 521. perforating; 61. an air inlet pipe; 62. a diffuser pipe; 63. a flow guide nozzle; 64. an air outlet pipe; 65. a common plate; 66. a closing plate; 67. a telescopic electric cylinder; 68. a drainage buckle plate; 7. a flexible sealing strip; 8. a preheating section; 81. a preheating box; 82. a chain plate type preheating conveyor belt; 83. a microwave generator; 9. a temperature sensor; 10. a humidity sensor; 11. a humidifying pipe; 12. a gas pressurizer; 200. a drying section; 300. and (5) returning to the moistening section.
Detailed Description
The invention is further illustrated by the following figures and examples.
Example (b):
as shown in fig. 1 to fig. 6, the continuous temperature-controlled drying production line for medicinal materials comprises: a plurality of drying sections 200, wherein a rewetting section 300 is arranged between every two adjacent drying sections 200; heating and drying devices are arranged in the drying section 200 and the rewetting section 300;
the drying section 200 includes:
the drying box 1 is provided with a drying and feeding opening 11 at the head end, and a drying and feeding plate 13 which is inclined downwards is arranged on the opening; a drying discharging opening 12 is formed in the tail end of the drying box 1, and a drying discharging plate 14 is arranged on the drying discharging opening 12 in an upward-inclined and downward mode;
a drying conveyor belt 2 arranged in the drying box 1; the tail end of the drying feeding plate 13 is positioned on the upper belt surface of the drying conveyor belt 2 and is in contact with the upper belt surface or a gap is reserved between the tail end of the drying feeding plate and the upper belt surface; the head end of the drying discharge plate 14 is positioned at the tail end of the drying conveyor belt 2, and the medicinal materials on the drying conveyor belt 2 fall or slide onto the head end of the drying discharge plate 14 under the action of gravity; the tail end of the drying discharging plate 14 is positioned in the adjacent moistening section 300;
the rewetting section 300 comprises:
the head end of the rewetting box 3 is provided with a rewetting material inlet opening 31, the drying discharging plate 14 penetrates through the rewetting material inlet opening 31, and the tail part of the drying discharging plate is positioned in the rewetting box 3; a rewetting discharging opening 32 is formed in the tail end of the rewetting box 3, and a rewetting discharging plate 34 is obliquely and downwardly arranged on the rewetting discharging opening 32;
the rewetting conveyor belt 4 is arranged in the rewetting box 3; the tail end of the drying and discharging plate 14 is positioned right above the upper belt surface of the rewetting conveyor belt 4, and a gap for medicine to pass through is reserved between the tail end of the drying and discharging plate 14 and the upper belt surface of the rewetting conveyor belt 4; the medicinal materials on the rewetting conveyor belt 4 fall or slide to the head end of the rewetting discharge plate 34 under the action of gravity; the tail end of the rewetting discharge plate 34 is located in the adjacent drying section 200; the conveying direction of the rewetting conveyor belt 4 is opposite to that of the drying conveyor belt 2;
the dry feeding opening 11, the dry discharging opening 12, the rewetting feeding opening 31 and the rewetting discharging opening 32 are all provided with a temperature sensor 9 and a humidity sensor 10;
the heating and drying device located in the drying section 200 includes:
an electric heater disposed at the periphery of the drying conveyor;
the blowing device is opposite to the upper belt surface of the drying conveyor belt 2;
the heated drying means located in the rewetting section 300 is identical in structure to the heated drying means located in the drying section 200.
Drying is carried out alternately through the drying section 200 and the rewetting section 300, and the drying speed can be finely controlled, so that the inner and outer drying speeds are kept consistent as much as possible when the medicinal materials are dried, and cracking caused by too large difference of the inner and outer drying speeds is reduced. The drying process adopts the mode of electrical heating to the medicinal material heating, adds blast apparatus simultaneously and carries out surface drying.
In this embodiment, the dry feeding opening 11 and the dry discharging opening 12 of the drying box 1 and the rewetting feeding opening 31 and the rewetting discharging opening 32 of the rewetting box 3 are both provided with a flexible sealing tape 7 for sealing the same; the flexible sealing belt 7 is erected on the adjacent drying feeding plate 13, drying discharging plate 14, back-moistening feeding plate 33 and back-moistening discharging plate 34.
The flexible sealing strip 7 is similar to the transparent soft door curtain structural style of air conditioner, can supply the medicine to pass through smoothly, and has certain sealed effect.
In this embodiment, the drying conveyor belt 2 and the rewetting conveyor belt 4 are both chain plate conveyor belts.
The medicinal materials can be dried from the upper and lower surfaces by the chain plate type conveyor belt which is connected in series from top to bottom.
In this example, a preheating section 8 is also included, which is in communication with the first drying section 200; the preheating section 8 includes:
a preheating tank 81 provided with a horizontal inlet and a horizontal outlet;
a chain plate type preheating conveyor belt 82, wherein the head end of the chain plate type preheating conveyor belt passes through the horizontal inlet, the tail end of the chain plate type preheating conveyor belt passes through the horizontal outlet, and the tail end of the chain plate type preheating conveyor belt is positioned right above the dry feeding plate 13;
and two microwave generators 83 arranged outside the upper and lower belt surfaces of the chain-plate type preheating conveyor belt 82.
Preheating section 8 is through microwave generator 83 with the whole heating of medicinal material for when the medicinal material got into drying section 200, the medicinal material is inside can keep unanimous with outside temperature as far as possible, and when the drying, inside moisture can be as far as possible synchronous quick external dispersing, reduces inside and outside dry moisture difference.
The gas pressurizer 12 blows the medicinal materials on the drying conveyor belt 2 through the flow guide nozzle 63, the medicinal materials are close to the flow guide nozzle 63 along with the drying conveyor belt 2, and because the blowing direction of the flow guide nozzle 63 and the moving direction of the drying conveyor belt 2, the humidity at the tail part of the drying box 1 is smaller than that at the head part, so the environment humidity contacted with the medicinal materials is slowly reduced, and the slow drying of the medicinal materials can be realized.
In this embodiment, the drying conveyor belt 2 and the rewetting conveyor belt 4 are both link plate type conveyor belts; the two electric heaters are respectively arranged at the outer sides of the upper belt surface and the lower belt surface of the drying conveyor belt 2;
the electric heater includes:
the axes of the infrared heating pipes are vertical to the moving direction of the drying conveyor belt 2;
the light homogenizing plate 52 is arranged between the infrared heating pipes and the belt surface of the drying conveyor belt 2, and uniformly disperses and irradiates the thermal infrared light of the infrared heating pipes to the belt surface of the drying conveyor belt 2; the light equalizing plate 52 is further provided with a plurality of through holes 521 for hot air to flow.
Infrared heating pipe can be with the direct transmission to the medicinal material surface that the heat is more for the medicinal material is heated, and its power that can be through adjusting infrared heating pipe realizes the control of heating, and the board 52 of evening the same time can be with infrared ray evenly distributed, makes the medicinal material heating more even, and perforation 521 can supply that the medicinal material dispels the heat and blast apparatus takes away heat and moisture content.
In this embodiment, the blowing device includes:
the tail end of the air inlet pipe 61 penetrates through the drying box 1, and the head end of the air inlet pipe is communicated with the air pressurizer 12; the gas pressurizer 12 may be a gas pump with a high-pressure container;
the two air-dispersing pipes 62 are arranged at the upper side and the lower side of the belt surface of the drying and conveying belt 2, and the two air-dispersing pipes 62 are communicated; the head end of the flow dispersing pipe is communicated with the tail end of the air inlet pipe 61;
the two flow guide nozzles 63 are respectively connected with the head ends of the two flow scattering pipes 62, the air outlet direction points to the movement direction of the drying conveyor belt 2, and the air flow of the air outlet is parallel to the belt surface of the drying conveyor belt 2.
In this embodiment, the blowing device further includes:
the air outlet pipe 64 is positioned in the drying box 1, and the head end of the air outlet pipe is a bell mouth; the air outlet pipe 64 is in heat exchange contact with the adjacent air inlet pipe 61 in the downstream rewetting box 3; the contact portion is a common plate 65; the shared plate 65 is provided with a gap; a closing plate 66 is hinged on the notch; a telescopic electric cylinder 67 is arranged in the air outlet pipe 64, the head end of the telescopic electric cylinder 67 is hinged with the inner wall of the air outlet pipe 64, the tail end of the telescopic electric cylinder 67 is hinged with the closing plate 66, and the telescopic electric cylinder 67 telescopically controls the closing plate 66 to rotate towards the air outlet pipe 64 or close the gap; the opening direction of the closing plate 66 is opposite to the air outlet direction of the air outlet pipe 64.
The shared plate 65 can transfer the heat of the air outlet pipe 64 to the air inlet pipe 61, so that the power of the infrared heating pipe is reduced, the energy is saved, and the cost is reduced, meanwhile, the air inlet temperature and the moisture in the air inlet pipe 61 can be directly controlled through the opening and closing of the closing plate 66, and thus, the temperature and the humidity of the drying air and the rewetting air can be accurately regulated and controlled during drying and rewetting.
In this embodiment, a drainage buckle 68 having an opening is disposed at the notch in the air inlet pipe 61, and the opening of the drainage buckle 68 is the same as the air inlet direction of the air inlet pipe 61.
The drainage buckle plate 68 can guide the high-temperature and high-humidity gas in the air outlet pipe 64 to smoothly enter the air inlet pipe 61, and does not interfere the gas flow in the air inlet pipe 61 as much as possible.
In this embodiment, the tail end of the air inlet pipe 61 is provided with a temperature sensor 9 and a humidity sensor 10.
In this embodiment, the head end of the air inlet pipe 61 is further communicated with the humidifying pipe 11, and the air pressurizer 12 has an air dehumidifying function.
When in order to control intake pipe 61 lower temperature relatively, can only be unable or a small amount of outlet duct 64 interior gas get into intake pipe 61, the humidity is lower in the intake pipe 61 this moment, can't reach the purpose of rewetting or the humidity is too low, will lead to the quick surface of medicinal material to be dried fast, and the humidification pipe 11 injects moist air this moment and just can realize the purpose of temperature and humidity regulation and control. The humidifying pipe 11 may be mist-like vapor emitted from an ultrasonic humidifier.
When the humidity of the outside air is high, the humidity can be reduced by the gas dehumidification function of the gas pressurizer 12, and the humidity can be controlled.
This embodiment medicinal material continuous temperature control stoving production line is like this work, places the medicinal material chain slat type and preheats conveyer belt 82 in, and the medicinal material removes along with chain slat type preheating conveyer belt 82, and microwave generator 83 heats the medicinal material, and when the unanimous back of the inside and outside temperature of medicinal material, the medicinal material gets into dry pan feeding board 13, slides on dry conveyer belt 2 at last.
The medicinal material on the drying conveyer belt 2 is blown on with gas through water conservancy diversion mouth 63 to gas presser 12, and the medicinal material is close water conservancy diversion mouth 63 along with drying conveyer belt 2, because the direction of blowing of water conservancy diversion mouth 63 and drying conveyer belt 2's direction of motion, the humidity of drying cabinet 1 afterbody is less than the humidity of head, therefore its ambient humidity who contacts of medicinal material slowly reduces, can realize the slow drying of medicinal material, and drying temperature can monitor through temperature sensor 9 and humidity transducer 10.
The medicinal material after drying, its surface dryness degree is greater than inside, and the medicinal material enters into returning moist conveyer belt 4 through dry play flitch 14 this moment. The temperature and humidity of the air in the air inlet pipe 61 of the rewetting tank 3 are adjusted by the dried high-temperature and high-humidity air through the shared plate 65 (the adjustment values are monitored by the temperature sensor 9 and the humidity sensor 10); the preliminarily dried medicinal material moves to the flow guide nozzle 63 in the rewetting conveyor belt 4.
The medicinal material receives infrared heater 51's heating in real time along with returning moist conveyer belt 4 and being close to water conservancy diversion mouth 63, its inside keeps the high temperature, inside moisture outdiffusion, simultaneously water conservancy diversion mouth 63 blow the direction and return moist conveyer belt 4's direction of motion, the humidity that returns moist case 3 head is greater than the humidity of afterbody, consequently the higher degree of dryness in surface that the medicinal material leads to when preliminary drying returns moist under the two effects of being moist air and the inside outside moisture that gives off of medicinal material, make the difference of the inside and outside holistic degree of dryness of medicinal material less relatively. The whole water content of the rewetted medicinal material is less than or equal to that of the preliminarily dried medicinal material.
The medicinal material is dried repeatedly by the drying box 1 and the moistening box 3, and finally discharged out of the system through the drying box 1.
The drying speed and the rewetting condition of the specific medicinal materials are judged mainly through the characteristics of the medicinal materials (whether the medicinal materials are easy to dry, the shape of the medicinal materials is granular or flaky and other factors) by the drying box 1 and the rewetting box 3. Finally, the dryness of the medicinal materials reaches the standard.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (10)
1. Medicinal material continuous temperature control stoving production line, its characterized in that includes: a plurality of drying sections, wherein a rewetting section is arranged between every two adjacent drying sections; heating and drying devices are arranged in the drying section and the rewetting section;
the drying section comprises:
the drying box is provided with a drying feeding opening at the head end, and a drying feeding plate inclining downwards is arranged on the opening; the tail end of the drying box is provided with a drying discharging opening, and a drying discharging plate is arranged on the drying discharging opening in an upward and downward inclined manner;
the drying conveyor belt is arranged in the drying box; the tail end of the drying feeding plate is positioned on the upper belt surface of the drying conveyor belt, and a gap is formed between the tail end of the drying feeding plate and the upper belt surface; the head end of the drying discharge plate is positioned at the tail end of the drying conveyor belt, and the medicinal materials on the drying conveyor belt fall or slide onto the head end of the drying discharge plate under the action of gravity; the tail end of the drying discharging plate is positioned in the adjacent rewetting section;
the rewetting section comprises:
the head end of the rewetting box is provided with a rewetting material inlet, the drying discharging plate penetrates through the rewetting material inlet, and the tail part of the drying discharging plate is positioned in the rewetting box; the tail end of the rewetting box is provided with a rewetting discharging opening, and the rewetting discharging opening is provided with a rewetting discharging plate which inclines upwards and downwards;
the rewetting conveyor belt is arranged in the rewetting box; the tail end of the drying discharging plate is positioned right above the upper belt surface of the rewetting conveyor belt, and a gap for medicine to pass through is reserved between the tail end of the drying discharging plate and the upper belt surface of the rewetting conveyor belt; the medicinal materials on the rewetting conveyor belt fall or slide onto the head end of the rewetting discharge plate under the action of gravity; the tail end of the rewetting discharge plate is positioned in the adjacent drying section; the conveying direction of the rewetting conveyor belt is opposite to that of the drying conveyor belt;
the drying feeding opening, the drying discharging opening, the rewetting feeding opening and the rewetting discharging opening are respectively provided with a temperature sensor and a humidity sensor;
the heating and drying device located in the drying section comprises:
an electric heater disposed at the periphery of the drying conveyor;
the blowing device is opposite to the upper belt surface of the drying conveyor belt;
the heating and drying device in the rewetting section has the same structure as the heating and drying device in the drying section.
2. The continuous temperature-control drying production line for medicinal materials according to claim 1, wherein the drying inlet opening and the drying outlet opening of the drying box and the rewetting inlet opening and the rewetting outlet opening of the rewetting box are respectively provided with a flexible sealing belt for sealing the drying inlet opening and the drying outlet opening; the flexible sealing belt is erected on the adjacent drying feeding plate, drying discharging plate, back-moistening feeding plate and back-moistening discharging plate.
3. The continuous temperature-control drying production line for medicinal materials according to claim 1, wherein the drying conveyor belt and the rewetting conveyor belt are both chain plate conveyor belts.
4. The continuous temperature-control drying production line for medicinal materials according to claim 1, further comprising a preheating section communicated with the first drying section; the preheating section includes:
the preheating box is provided with a horizontal inlet and a horizontal outlet;
the head end of the chain plate type preheating conveyor belt penetrates through the horizontal inlet, the tail end of the chain plate type preheating conveyor belt penetrates through the horizontal outlet, and the tail end of the chain plate type preheating conveyor belt is positioned right above the drying feeding plate;
and the two microwave generators are arranged on the outer sides of the upper belt surface and the lower belt surface of the chain plate type preheating conveying belt.
5. The continuous temperature-control drying production line for medicinal materials according to claim 1, wherein the drying conveyor belt and the rewetting conveyor belt are both chain plate conveyor belts; the two electric heaters are respectively arranged at the outer sides of the upper belt surface and the lower belt surface of the drying conveyor belt;
the electric heater includes:
the axes of the infrared heating pipes are vertical to the moving direction of the drying conveyor belt;
the light homogenizing plate is arranged between the infrared heating pipes and the belt surface of the drying conveyor belt and uniformly disperses and irradiates the hot infrared light of the infrared heating pipes to the belt surface of the drying conveyor belt; the light homogenizing plate is also provided with a plurality of through holes for hot air to flow.
6. The continuous temperature-control drying production line for medicinal materials according to claim 5, wherein the blowing device comprises:
the tail end of the air inlet pipe penetrates through the drying box, and the head end of the air inlet pipe is communicated with the gas pressurizer;
the two flow dispersing pipes are arranged on the upper side and the lower side of the belt surface of the drying conveyor belt and communicated with each other; the head end of the flow dispersing pipe is communicated with the tail end of the air inlet pipe;
and the two flow guide nozzles are respectively connected with the head ends of the two flow scattering pipes, the air outlet direction points to the movement direction of the drying conveyor belt, and the air flow of the air outlet is parallel to the belt surface of the drying conveyor belt.
7. The continuous temperature-control drying production line for medicinal materials according to claim 6, wherein the blowing device further comprises:
the head end of the air outlet pipe is a bell mouth and is positioned in the drying box; the air outlet pipe is in heat exchange contact with an air inlet pipe in the adjacent downstream rewetting box; the contact part is a shared plate; the shared plate is provided with a notch; a sealing plate is hinged on the notch; the air outlet pipe is internally provided with a telescopic electric cylinder, the head end of the telescopic electric cylinder is hinged with the inner wall of the air outlet pipe, the tail end of the telescopic electric cylinder is hinged with the sealing plate, and the telescopic electric cylinder telescopically controls the sealing plate to rotate towards the air outlet pipe or seals the notch; the opening direction of the sealing plate is opposite to the air outlet direction of the air outlet pipe.
8. The continuous temperature-control drying production line for medicinal materials according to claim 7, wherein a drainage buckle plate with an opening is arranged at the notch in the air inlet pipe, and the opening of the drainage buckle plate is in the same air inlet direction as the air inlet pipe.
9. The continuous temperature-control drying production line for medicinal materials according to claim 8, wherein a temperature sensor and a humidity sensor are arranged at the tail end of the air inlet pipe.
10. The continuous temperature-control drying production line for medicinal materials according to claim 9, wherein the head end of the air inlet pipe is further communicated with a humidifying pipe, and the air pressurizer has an air dehumidifying function.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210747028.6A CN115164563B (en) | 2022-06-29 | 2022-06-29 | Continuous temperature control and drying production line for medicinal materials |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210747028.6A CN115164563B (en) | 2022-06-29 | 2022-06-29 | Continuous temperature control and drying production line for medicinal materials |
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| CN115164563A true CN115164563A (en) | 2022-10-11 |
| CN115164563B CN115164563B (en) | 2023-08-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115560574A (en) * | 2022-10-14 | 2023-01-03 | 青岛理工大学 | Rhizome class traditional chinese medicine drying equipment |
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| CN203518485U (en) * | 2013-10-16 | 2014-04-02 | 湖南康尔佳制药有限公司 | Device of continuously drying raw medicinal materials for pharmaceutical use |
| US20170030645A1 (en) * | 2015-06-26 | 2017-02-02 | M&R Printing Equipment, Inc. | Dryer conveyor belt tracking system |
| CN206347844U (en) * | 2016-11-22 | 2017-07-21 | 河海大学 | A kind of microwave hot air couples sludge drying device |
| CN208785302U (en) * | 2018-03-09 | 2019-04-26 | 广州茂建药业有限公司 | A kind of Chinese medicine steaming profit Softening box |
| CN209877585U (en) * | 2018-12-27 | 2019-12-31 | 福建益升食品有限公司 | Tremella drying device of multi-stage accuse temperature |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203518485U (en) * | 2013-10-16 | 2014-04-02 | 湖南康尔佳制药有限公司 | Device of continuously drying raw medicinal materials for pharmaceutical use |
| US20170030645A1 (en) * | 2015-06-26 | 2017-02-02 | M&R Printing Equipment, Inc. | Dryer conveyor belt tracking system |
| CN206347844U (en) * | 2016-11-22 | 2017-07-21 | 河海大学 | A kind of microwave hot air couples sludge drying device |
| CN208785302U (en) * | 2018-03-09 | 2019-04-26 | 广州茂建药业有限公司 | A kind of Chinese medicine steaming profit Softening box |
| CN209877585U (en) * | 2018-12-27 | 2019-12-31 | 福建益升食品有限公司 | Tremella drying device of multi-stage accuse temperature |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115560574A (en) * | 2022-10-14 | 2023-01-03 | 青岛理工大学 | Rhizome class traditional chinese medicine drying equipment |
| CN115560574B (en) * | 2022-10-14 | 2023-12-15 | 青岛理工大学 | Rhizome class traditional chinese medicine drying equipment |
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| Publication number | Publication date |
|---|---|
| CN115164563B (en) | 2023-08-04 |
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