CN115164563B - Continuous temperature control and drying production line for medicinal materials - Google Patents
Continuous temperature control and drying production line for medicinal materials Download PDFInfo
- Publication number
- CN115164563B CN115164563B CN202210747028.6A CN202210747028A CN115164563B CN 115164563 B CN115164563 B CN 115164563B CN 202210747028 A CN202210747028 A CN 202210747028A CN 115164563 B CN115164563 B CN 115164563B
- Authority
- CN
- China
- Prior art keywords
- drying
- rewetting
- conveyor belt
- plate
- medicinal materials
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- 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 continuous temperature control and drying production line for medicinal materials, which comprises the following steps: a plurality of drying sections, 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 includes: a drying oven for drying the conveyor belt; the rewetting section includes: the rewetting box rewetting conveyor belt is opposite to the conveying direction of the drying conveyor belt; a temperature sensor and a humidity sensor are arranged in the drying box and the rewetting box; the heating and drying device comprises: an electric heater arranged 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 has small occupied area, can realize continuous drying of medicinal materials, keeps the internal and external drying speeds of the medicinal materials approximately consistent in the drying process, ensures the dried medicinal materials to be complete, and can reduce the cracking and breaking 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 and drying production line for medicinal materials.
Background
The traditional Chinese medicine has various kinds, the production methods of different traditional Chinese medicines are the same, the traditional drying process generally adopts sun drying, the traditional drying process is not thorough, moisture absorption and moisture regain are easy to occur, the drying time is relatively long, the production quality is not improved, and the productivity and the yield are not improved. At present, large-scale production generally adopts drying equipment to carry out large-scale quick drying, the existing drying equipment mainly comprises a single drying box body equipment, medicinal materials are placed into a drying box for drying treatment, the box body is opened after drying is completed, the medicinal materials are taken out, for example, the application number is CN201620817972.4, the patent is a medicinal material quick drying device, the application number is CN201420030430.3, and the patent is a medicinal material food drying equipment.
According to the characteristics of low production efficiency of the traditional process, the process has the application number of CN201810583814.0 and is named as a drying device for treating traditional Chinese medicinal materials with continuous blanking, and the following technical scheme is disclosed: comprises a shell, a feed hopper, a heating sleeve, a heating element and a blower; a vertical screen cylinder is arranged in the shell, a vertical hollow shaft is coaxially arranged in the screen cylinder, 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 hollow shaft is coaxially fixed with a spiral screen, a circle of heating sleeve is sleeved on the outer side of the shell, and an air blowing port which is communicated into the shell is formed in the heating sleeve. The patent uses the principle of a disc dryer to realize continuous drying, but the drying speed, the drying temperature and the like of medicinal materials cannot be accurately controlled.
The application number is CN201910108479.3, and the name is a medicinal material drying device, and the following technical scheme is disclosed: the device comprises a feeding device, a preheating device and a drying device, wherein the bottom of the feeding device is provided with the preheating device, the tail end of the preheating device is provided with the drying device, the drying discharging end of the feeding device is connected with the feeding end of the preheating device, and the drying discharging end of the preheating device is connected with the feeding end of the drying device. The invention can realize continuous operations of feeding, stirring, scattering, preheating and drying, so that the materials to be dried are not adhered, the separation and drying effects are good, and the drying time can be shortened; the feeding device is used for feeding materials through the action of the blowing fan, the materials to be dried subsequently enter the feeding bin for stirring and outputting, the swing motor can simulate the actions of placing the materials by hands, the materials to be dried are uniformly distributed on the preheating conveying belt, the materials are convenient to preheat, the preheated materials are fed into the drying device for microwave drying, the microwave drying is integrally heated, the heat transfer speed is high, and the drying time can be shortened. According to the technical scheme, the microwave oven-drying production is carried out continuously in a preheating and microwave oven-drying mode, microwaves can be integrally heated, but air flow is lacked, the temperature, the humidity and the drying rate of the medicinal material oven-drying cannot be accurately controlled, the medicinal material which is easy to crack after being dried is cracked or even broken easily, and the medicinal material quality and the medicinal effect can be directly influenced by the fact that part of the medicinal material is cracked or even broken according to the record of the commodity specification grades of pharmacopoeia and the Chinese medicinal materials.
Disclosure of Invention
In view of the above-mentioned drawbacks of 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, keeps the internal and external drying speeds of the medicinal materials approximately consistent in the drying process, and can reduce cracking and breaking of the medicinal materials after drying.
The aim of the invention is realized by the following technical scheme:
continuous accuse temperature stoving production line of medicinal material includes: a plurality of drying sections, 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 includes:
the head end of the drying box is provided with a drying feeding opening, and the opening is provided with a drying feeding plate which is inclined downwards; the tail end of the drying box is provided with a drying discharging opening, and a drying discharging plate is obliquely arranged downwards 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 is contacted with the upper belt surface or is provided with a gap; the head end of the drying discharging plate is positioned at the tail end of the drying conveyor belt, and medicinal materials on the drying conveyor belt fall off or slide onto the head end of the drying discharging plate under the action of gravity; the tail end of the drying discharging plate is positioned in the adjacent rewetting section;
the rewetting section includes:
the head end of the rewetting box is provided with a rewetting feeding opening, the drying discharging plate penetrates through the rewetting feeding opening, 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 obliquely arranged downwards on the rewetting discharging opening;
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 medicinal materials 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 drop or slide onto the head end of the rewetting discharging plate under the action of gravity; the tail end of the rewetting discharging 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 temperature sensor and the humidity sensor are arranged at the drying feeding opening, the drying discharging opening, the rewetting feeding opening and the rewetting discharging opening;
the heating and drying device positioned in the drying section comprises:
an electric heater arranged 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.
Further, a drying feeding opening and a drying discharging opening of the drying box and a rewetting feeding opening and a rewetting discharging opening of the rewetting box are respectively provided with a flexible sealing belt for sealing the drying feeding opening and the drying discharging opening; the flexible sealing tape is arranged 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 conveyor belts.
Further, the device also comprises a preheating section which is communicated with the first drying section; the pre-heating section comprises:
a preheating box provided with a horizontal inlet and a horizontal outlet;
the chain plate type preheating conveyor belt has a head end passing through the horizontal inlet, a tail end passing through the horizontal outlet and a tail end positioned right above the drying feeding plate;
and the microwave generators are arranged outside the upper belt surface and the lower belt surface of the chain plate type preheating conveyor belt.
Further, the drying conveyor belt and the rewetting conveyor belt are both chain plate conveyor belts; the 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 axis of the infrared heating pipes is perpendicular to the movement 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 dispersedly irradiates the thermal infrared light of the infrared heating pipes to the belt surface of the drying conveyor belt; and a plurality of perforations for hot gas to flow are also formed in the light homogenizing plate.
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 air 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; the head end of the dispersion pipe is communicated with the tail end of the air inlet pipe;
the two diversion nozzles are respectively connected with the head ends of the two dispersion pipes, the air outlet direction is directed to the movement direction of the drying conveyor belt, and the air outlet air flow is parallel to the belt surface of the drying conveyor belt.
Further, the blowing device further includes:
the air outlet pipe is provided with a horn mouth at the head end and is arranged in the drying box; the air outlet pipe is in heat exchange contact with the 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 closing plate is hinged on the notch; a telescopic electric cylinder is arranged in the air outlet pipe, 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 is used for controlling the sealing plate to rotate towards the air outlet pipe or seal the notch; the opening direction of the sealing plate is opposite to the air outlet direction of the air outlet pipe.
Further, 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.
Further, a temperature sensor and a humidity sensor are arranged at the tail end of the air inlet pipe.
Further, the head end of the air inlet pipe is also 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. the drying sections and the rewetting sections are used for drying alternately, and the drying speed can be controlled in a refined mode, so that the internal and external drying speeds are kept consistent as much as possible when the medicinal materials are dried, and cracking caused by too large difference between the internal and external drying speeds is reduced. In the drying process, the medicinal materials are heated in an electric heating mode, and meanwhile, a blowing device is added for surface drying.
2. The air pressurizer blows air onto the medicinal materials on the drying conveyor belt through the guide nozzle, the medicinal materials are close to the guide nozzle along with the drying conveyor belt, and the humidity of the tail part of the drying box is smaller than that of the head part due to the blowing direction of the guide nozzle and the moving direction of the drying conveyor belt, so that the environment humidity contacted with the medicinal materials is slowly reduced, and the slow drying of the medicinal materials can be realized.
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 present invention are described as follows:
fig. 1 is a schematic sectional view of a continuous temperature-controlled drying production line for medicinal materials in this embodiment.
Fig. 2 is an enlarged schematic view of the structure at a in fig. 1.
FIG. 3 is a schematic view of the structure of 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 of fig. 4 at D.
Fig. 6 is an enlarged schematic view of the structure at a in fig. E.
In the figure: 1. a drying box; 11. a drying feeding opening; 12. a drying discharging opening; 13. drying the feeding plate; 14. drying the discharging plate; 2. drying the conveyor belt; 3. a rewetting box; 31. a rewetting feeding opening; 32. a rewetting discharging opening; 33. re-wetting the feeding plate; 34. a rewetting discharging plate; 4. a rewetting conveyor belt; 51. an infrared heater; 52. a light equalizing plate; 521. perforating; 61. an air inlet pipe; 62. a diffuser pipe; 63. a flow guiding 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 tape; 8. a pre-heating section; 81. a pre-heating box; 82. 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) rewetting the section.
Detailed Description
The invention is further described below with reference to the drawings and examples.
Examples:
as shown in fig. 1 to 6, the continuous temperature control and drying production line for medicinal materials comprises: a plurality of drying sections 200, 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 feeding opening 11 at the head end, and a drying feeding plate 13 which is inclined downwards is arranged on the opening; the tail end of the drying oven 1 is provided with a drying discharging opening 12, and a drying discharging plate 14 is obliquely downwards arranged on the drying discharging opening 12;
a drying conveyor belt 2 arranged in the drying oven 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 contacted with the upper belt surface or is provided with a gap; the head end of the drying discharging plate 14 is positioned at the tail end of the drying conveyor belt 2, and medicinal materials on the drying conveyor belt 2 fall or slide onto the head end of the drying discharging plate 14 under the action of gravity; the tail end of the drying discharging plate 14 is positioned in the adjacent rewetting section 300;
the rewet section 300 includes:
the head end of the rewetting box 3 is provided with a rewetting feeding opening 31, the drying discharging plate 14 passes through the rewetting feeding opening 31, and the tail part is positioned in the rewetting box 3; the tail end of the rewetting box 3 is provided with a rewetting discharging opening 32, and a rewetting discharging plate 34 is obliquely and downwards 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 discharging plate 14 is positioned right above the upper belt surface of the rewetting conveyor belt 4, and a gap for medicinal materials to pass through is reserved between the tail end of the drying 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 onto the head end of the rewetting discharging plate 34 under the action of gravity; the tail end of the rewetting discharge plate 34 is positioned in an adjacent drying section 200; the conveying direction of the rewetting conveyor belt 4 is opposite to that of the drying conveyor belt 2;
the temperature sensor 9 and the humidity sensor 10 are arranged at the positions of the drying feeding opening 11, the drying discharging opening 12, the rewetting feeding opening 31 and the rewetting discharging opening 32;
the heating and drying apparatus located in the drying section 200 includes:
an electric heater arranged at the periphery of the drying conveyor;
the blowing device is opposite to the upper belt surface of the drying conveyor belt 2;
the heat drying apparatus in the rewet section 300 is identical in structure to the heat drying apparatus in the drying section 200.
The drying sections 200 and the rewetting sections 300 are used for alternately drying, so that the drying speed can be finely controlled, the internal and external drying speeds are kept consistent as much as possible when the medicinal materials are dried, and cracking caused by too large difference between the internal and external drying speeds is reduced. In the drying process, the medicinal materials are heated in an electric heating mode, and meanwhile, a blowing device is added for surface drying.
In this embodiment, the drying inlet opening 11 and the drying outlet opening 12 of the drying oven 1 and the rewetting inlet opening 31 and the rewetting outlet opening 32 of the rewetting oven 3 are both provided with a flexible sealing tape 7 for sealing the same; the flexible sealing strip 7 is arranged on the adjacent drying feeding plate 13, drying discharging plate 14, rewetting feeding plate 33 and rewetting discharging plate 34.
The structure of the flexible sealing belt 7 is similar to the structure of the transparent soft door curtain of the air conditioner, can smoothly pass through medicinal materials and has a certain sealing effect.
In this embodiment, the drying conveyor belt 2 and the rewetting conveyor belt 4 are both chain-plate conveyor belts.
The chain plate type conveyor belt can be used for drying the medicinal materials from the upper surface and the lower surface.
In this example, a pre-heating section 8 is also included, in communication with the first drying section 200; the preheating section 8 comprises:
a preheating box 81 provided with a horizontal inlet and a horizontal outlet;
a chain plate type preheating conveyor belt 82, the head end of which passes through the horizontal inlet, the tail end of which passes through the horizontal outlet, and the tail end of which is positioned right above the drying feeding plate 13;
and microwave generators 83, two of which are disposed outside the upper and lower belt surfaces of the link plate type preheating conveyor 82.
The preheating section 8 is used for integrally heating medicinal materials through the microwave generator 83, so that when the medicinal materials enter the drying section 200, the interior of the medicinal materials can be kept consistent with the external temperature as much as possible, and when the medicinal materials are dried, the internal moisture can be synchronously and rapidly dispersed outwards as much as possible, and the moisture difference between the interior and the exterior of the medicinal materials is reduced.
The air pressurizer 12 blows air to the medicinal materials on the drying conveyor belt 2 through the guide nozzle 63, the medicinal materials approach the guide nozzle 63 along with the drying conveyor belt 2, and the humidity of the tail part of the drying box 1 is smaller than that of the head part due to the blowing direction of the guide nozzle 63 and the moving direction of the drying conveyor belt 2, so that the humidity of the environment contacted by 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 chain-plate conveyor belts; the 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 perpendicular to the movement direction of the drying conveyor belt 2;
the light equalizing plate 52 is arranged between the infrared heating pipes and the belt surface of the drying conveyor belt 2, and uniformly dispersedly 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.
The infrared heating pipe can be more direct transfer to the medicinal material surface with the heat for the medicinal material is heated, and it can be through the control of adjustment infrared heating pipe's power realization heating amount, and light-equalizing plate 52 can be with infrared ray evenly distributed simultaneously, makes the medicinal material heat more even, and perforation 521 can supply the medicinal material heat dissipation and blast apparatus to take away heat and moisture content.
In this embodiment, the blowing device includes:
an air inlet pipe 61, the tail end of which passes through the drying box 1, and the head end of which is communicated with the air pressurizer 12; the gas pressurizer 12 may be an air pump with a high pressure vessel;
two diffuser pipes 62 arranged on the upper and lower sides of the belt surface of the drying conveyor belt 2, the two diffuser pipes 62 being communicated; the head end of the dispersion pipe is communicated with the tail end of the air inlet pipe 61;
the two diversion nozzles 63 are respectively connected with the head ends of the two diversion pipes 62, the air outlet direction is directed to the movement direction of the drying conveyor belt 2, and the air outlet air flow 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 provided with a horn mouth at the head end and is arranged in the drying oven 1; the air outlet pipe 64 is in heat exchange contact with the air inlet pipe 61 in the adjacent downstream rewetting box 3; the contact portion is a common plate 65; the shared plate 65 is provided with a notch; a closing plate 66 is hinged to 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 sealing plate 66, and the telescopic electric cylinder 67 telescopically controls the sealing plate 66 to rotate towards the air outlet pipe 64 or seal a notch; the opening direction of the closing plate 66 is opposite to the air outlet direction of the air outlet pipe 64.
The common plate 65 can transfer the heat of the air outlet pipe 64 into the air inlet pipe 61, reduce the power of the infrared heating pipe, save energy and reduce cost, and meanwhile, the air inlet temperature and the water in the air inlet pipe 61 can be directly controlled by opening and closing the sealing plate 66, so that the temperature and the humidity of the drying and the rewetting air can be accurately regulated and controlled when the drying and the rewetting are carried out.
In this embodiment, a drainage buckle 68 having an opening is disposed in the air inlet pipe 61 at the notch, 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 68 can guide the high-temperature and high-humidity gas from the gas outlet pipe 64 to smoothly enter the gas inlet pipe 61, and does not interfere with the gas flow in the gas 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 also communicated with the humidifying pipe 11, and the air pressurizer 12 has an air dehumidifying function.
When the temperature of the air inlet pipe 61 is relatively low, only a small amount of air in the air outlet pipe 64 can not enter the air inlet pipe 61, at the moment, the humidity in the air inlet pipe 61 is low, the purpose of rewetting cannot be achieved, or the humidity is too low, the quick surface of the medicinal material can be quickly dried, and at the moment, the purpose of temperature and humidity regulation can be achieved by injecting moist air into the humidifying pipe 11. The humidifying pipe 11 may be mist steam emitted from an ultrasonic humidifier.
When the humidity of the outside air is high, the humidity can be reduced by the gas dehumidifying function of the gas pressurizer 12 at this time, and humidity control can be realized.
The continuous temperature control and drying production line for medicinal materials in the embodiment works in such a way that medicinal materials are placed in the chain plate type preheating conveyor belt 82, the medicinal materials move along with the chain plate type preheating conveyor belt 82, the microwave generator 83 heats the medicinal materials, and when the internal temperature and the external temperature of the medicinal materials are consistent, the medicinal materials enter the drying feeding plate 13 and finally slide into the drying conveyor belt 2.
The air pressurizer 12 blows air to medicinal materials on the drying conveyor belt 2 through the guide nozzle 63, the medicinal materials are close to the guide nozzle 63 along with the drying conveyor belt 2, and the humidity of the tail part of the drying box 1 is smaller than that of the head part due to the blowing direction of the guide nozzle 63 and the moving direction of the drying conveyor belt 2, so that the humidity of the environment contacted with the medicinal materials is slowly reduced, the medicinal materials can be slowly dried, and the drying temperature can be monitored through the temperature sensor 9 and the humidity sensor 10.
The surface dryness of the dried medicinal materials is larger than that of the inside, and the medicinal materials enter the rewetting conveyor belt 4 through the drying discharging plate 14. The dried high-temperature and high-humidity air adjusts the temperature and humidity of the air in the air inlet pipe 61 of the rewetting tank 3 through the common plate 65 (the adjustment value is monitored by the temperature sensor 9 and the humidity sensor 10); the initially dried medicinal material moves to the guide nozzle 63 in the rewetting conveyor 4.
The medicinal material is heated by the infrared heater 51 in real time along with the return wetting conveyor belt 4 approaches the flow guide mouth 63, the inside of the medicinal material keeps high temperature, internal moisture is outwards diffused, meanwhile, the blowing direction of the flow guide mouth 63 and the moving direction of the return wetting conveyor belt 4 are the humidity of the head part of the return wetting box 3 is greater than that of the tail part, and therefore, the medicinal material is subjected to return wetting under the action of moist air and the double follow-up action of the external moisture emitted by the medicinal material when being subjected to primary drying, and the difference of the internal and external integral drying degrees of the medicinal material is relatively small. The whole water content of the re-moistened medicinal material is less than or equal to that of the medicinal material after preliminary drying.
The above drying box 1 and the rewetting box 3 are repeatedly dried, and finally discharged out of the system through the drying box 1.
The specific medicinal materials pass through the drying box 1 and the rewetting box 3, and the drying speed and the rewetting condition are mainly judged according to the characteristics of the medicinal materials (whether the medicinal materials are easy to dry, the medicinal materials are granular or flaky, and the like). Finally, the dryness of the medicinal materials reaches the standard.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the present invention, which is intended to be covered by the claims of the present invention.
Claims (7)
1. Continuous accuse temperature stoving production line of medicinal material, its characterized in that includes: a plurality of drying sections, 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 includes:
the head end of the drying box is provided with a drying feeding opening, and the opening is provided with a drying feeding plate which is inclined downwards; the tail end of the drying box is provided with a drying discharging opening, and a drying discharging plate is obliquely arranged downwards 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 is contacted with the upper belt surface or is provided with a gap; the head end of the drying discharging plate is positioned at the tail end of the drying conveyor belt, and medicinal materials on the drying conveyor belt fall off or slide onto the head end of the drying discharging plate under the action of gravity; the tail end of the drying discharging plate is positioned in the adjacent rewetting section;
the rewetting section includes:
the head end of the rewetting box is provided with a rewetting feeding opening, the drying discharging plate penetrates through the rewetting feeding opening, 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 obliquely arranged downwards on the rewetting discharging opening;
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 medicinal materials 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 drop or slide onto the head end of the rewetting discharging plate under the action of gravity; the tail end of the rewetting discharging 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 temperature sensor and the humidity sensor are arranged at the drying feeding opening, the drying discharging opening, the rewetting feeding opening and the rewetting discharging opening;
the heating and drying device positioned in the drying section comprises:
an electric heater arranged 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 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 rewetting inlet opening and the rewetting outlet opening; the flexible sealing strips are arranged on the adjacent drying feeding plate, drying discharging plate, rewetting feeding plate and rewetting discharging plate;
the preheating section is communicated with the first drying section; the pre-heating section comprises:
a preheating box provided with a horizontal inlet and a horizontal outlet;
the chain plate type preheating conveyor belt has a head end passing through the horizontal inlet, a tail end passing through the horizontal outlet and a tail end positioned right above the drying feeding plate;
the microwave generators are arranged on the outer sides of the upper belt surface and the lower belt surface of the chain plate type preheating conveyor belt;
the drying conveyor belt and the rewetting conveyor belt are both chain plate conveyor belts; the 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 axis of the infrared heating pipes is perpendicular to the movement 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 dispersedly irradiates the thermal infrared light of the infrared heating pipes to the belt surface of the drying conveyor belt; and a plurality of perforations for hot gas to flow are also formed in the light homogenizing plate.
2. The continuous temperature-controlled 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.
3. The continuous temperature-controlled drying production line for medicinal materials according to claim 1, 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 air 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; the head end of the dispersion pipe is communicated with the tail end of the air inlet pipe;
the two diversion nozzles are respectively connected with the head ends of the two dispersion pipes, the air outlet direction is directed to the movement direction of the drying conveyor belt, and the air outlet air flow is parallel to the belt surface of the drying conveyor belt.
4. A continuous temperature-controlled drying production line for medicinal materials according to claim 3, wherein the blowing device further comprises:
the air outlet pipe is provided with a horn mouth at the head end and is arranged in the drying box; the air outlet pipe is in heat exchange contact with the 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 closing plate is hinged on the notch; a telescopic electric cylinder is arranged in the air outlet pipe, 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 is used for controlling the sealing plate to rotate towards the air outlet pipe or seal the notch; the opening direction of the sealing plate is opposite to the air outlet direction of the air outlet pipe.
5. The continuous temperature-control drying production line for medicinal materials according to claim 4, wherein the air inlet pipe is internally provided with a drainage buckle plate with an opening at the notch, and the opening of the drainage buckle plate is the same as the air inlet direction of the air inlet pipe.
6. The continuous temperature-controlled drying production line for medicinal materials according to claim 5, wherein the tail end of the air inlet pipe is provided with a temperature sensor and a humidity sensor.
7. The continuous temperature-controlled drying production line for medicinal materials according to claim 6, wherein the air inlet pipe head end is further communicated with a humidifying pipe, and the air pressurizer has an air dehumidifying function.
Priority Applications (1)
| 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 |
Applications Claiming Priority (1)
| 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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115164563A CN115164563A (en) | 2022-10-11 |
| CN115164563B true CN115164563B (en) | 2023-08-04 |
Family
ID=83490144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210747028.6A Active CN115164563B (en) | 2022-06-29 | 2022-06-29 | Continuous temperature control and drying production line for medicinal materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115164563B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115560574B (en) * | 2022-10-14 | 2023-12-15 | 青岛理工大学 | Rhizome class traditional chinese medicine drying equipment |
Citations (4)
| 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 |
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9939198B2 (en) * | 2015-06-26 | 2018-04-10 | M&R Printing Equipment, Inc. | Dryer conveyor belt tracking system |
-
2022
- 2022-06-29 CN CN202210747028.6A patent/CN115164563B/en active Active
Patent Citations (4)
| 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 |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN115164563A (en) | 2022-10-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115164563B (en) | Continuous temperature control and drying production line for medicinal materials | |
| CN206974094U (en) | A kind of high-efficiency drying apparatus of the prepared slices of Chinese crude drugs | |
| CN206310886U (en) | A kind of continous way hot wind and microwave couples drying system | |
| CN108562128A (en) | A kind of interlayer eddy flow corn-drying device | |
| CN204429627U (en) | A kind of drying unit of coating machine | |
| JPH07184783A (en) | Food heat treatment device and its method | |
| CN206146158U (en) | Seed microwave dryer of in organism excessive moisture fast can discharge | |
| CN113106583A (en) | Relaxation heat setting oven for regenerated polyester spinning raw material | |
| CN201108009Y (en) | Through-flow air supply assembly heating type vegetable press-pate machine | |
| CN109258802A (en) | A kind of tower grain three-stage drying is mechanical | |
| WO1999042776A1 (en) | Continuous method and apparatus for heat treatment of mass | |
| CN209295586U (en) | One kind having automatic temperature-controlled soft capsule drying rotating cage | |
| CN206556368U (en) | Food materials drying unit | |
| CN212499470U (en) | Drying device for printing processing | |
| CN102489438B (en) | Drying channel of coating machine | |
| CN109631544A (en) | Energy-saving synthetic leather drying equipment based on double duct air knives | |
| CN107869898A (en) | A kind of segmented microwave drying material system | |
| CN210399880U (en) | Drying device | |
| CN2888372Y (en) | Microwave drying machine with top arranged magnetron | |
| CN206709555U (en) | A kind of stone carton paperboard produces feed arrangement | |
| CN217818012U (en) | Cross-flow air flow belt type drying device for thermoplastic elastomer | |
| CN220689675U (en) | Corn seed dryer | |
| CN101153767A (en) | Suspending centrifugal drying method and drying device used by the same | |
| CN205667308U (en) | A kind of tea drier | |
| CN206094773U (en) | High -efficient percolation formula box -type dryer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |