CN108925662B - Novel energy-efficient drum-type tea processing equipment - Google Patents
Novel energy-efficient drum-type tea processing equipment Download PDFInfo
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- CN108925662B CN108925662B CN201810871099.0A CN201810871099A CN108925662B CN 108925662 B CN108925662 B CN 108925662B CN 201810871099 A CN201810871099 A CN 201810871099A CN 108925662 B CN108925662 B CN 108925662B
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- 238000012545 processing Methods 0.000 title claims abstract description 38
- 241001122767 Theaceae Species 0.000 title claims abstract 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 144
- 238000009413 insulation Methods 0.000 claims abstract description 25
- 238000007599 discharging Methods 0.000 claims abstract description 19
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 11
- 238000004321 preservation Methods 0.000 claims abstract description 11
- 238000002955 isolation Methods 0.000 claims description 43
- 238000007791 dehumidification Methods 0.000 claims description 30
- 238000012544 monitoring process Methods 0.000 claims description 24
- 238000004804 winding Methods 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 19
- 238000009423 ventilation Methods 0.000 claims description 19
- 230000001105 regulatory effect Effects 0.000 claims description 12
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- 230000033001 locomotion Effects 0.000 claims description 8
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- 230000001174 ascending effect Effects 0.000 claims description 3
- 239000004020 conductor Substances 0.000 claims description 3
- 241000196324 Embryophyta Species 0.000 claims 1
- 230000013011 mating Effects 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 13
- 244000269722 Thea sinensis Species 0.000 description 157
- 235000013616 tea Nutrition 0.000 description 148
- 238000000034 method Methods 0.000 description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 29
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- 239000002994 raw material Substances 0.000 description 23
- 102000004190 Enzymes Human genes 0.000 description 19
- 108090000790 Enzymes Proteins 0.000 description 19
- 238000005516 engineering process Methods 0.000 description 19
- 238000005096 rolling process Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 235000009569 green tea Nutrition 0.000 description 10
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- 235000019658 bitter taste Nutrition 0.000 description 4
- 230000009172 bursting Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000018044 dehydration Effects 0.000 description 4
- 238000006297 dehydration reaction Methods 0.000 description 4
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- 238000000429 assembly Methods 0.000 description 2
- 235000019606 astringent taste Nutrition 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
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Classifications
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23F—COFFEE; TEA; THEIR SUBSTITUTES; MANUFACTURE, PREPARATION, OR INFUSION THEREOF
- A23F3/00—Tea; Tea substitutes; Preparations thereof
- A23F3/06—Treating tea before extraction; Preparations produced thereby
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/10—Induction heating apparatus, other than furnaces, for specific applications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B6/00—Heating by electric, magnetic or electromagnetic fields
- H05B6/02—Induction heating
- H05B6/36—Coil arrangements
- H05B6/44—Coil arrangements having more than one coil or coil segment
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- Physics & Mathematics (AREA)
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- Life Sciences & Earth Sciences (AREA)
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- Tea And Coffee (AREA)
Abstract
The invention discloses novel efficient energy-saving drum-type tea processing equipment, which comprises a drum, wherein the outer wall surface of the drum is sequentially wrapped with a heat insulation layer and a heat preservation layer from inside to outside, and the outer side surface of the heat preservation layer on the outer wall surface of the drum is also provided with a stepped intermittent electromagnetic induction heating system for intermittently heating the drum and an air inlet and moisture removal system for inputting hot air into the drum and discharging moisture; the stepped intermittent electromagnetic induction heating system can stably control the temperature in the roller to be 250-280 ℃; by adopting the technical scheme of the invention, the energy consumption is reduced, and the tea processing quality is improved.
Description
Technical Field
The invention relates to the field of tea processing equipment, in particular to novel efficient and energy-saving roller-type tea processing equipment.
Background
At present, the market is more and more with tea beverage as main product, and the demand for raw material tea is also increasing and the quality requirement for tea is also high. This places high demands on the functionality and reliability of the tea processing machine. The processing equipment of the de-enzyming/rolling baking/rolling parching procedure is to roll the tea raw materials in a roller, and then heat the roller by a heater, so as to process the tea. However, the heat loss of the existing fixation machine/rolling dryer/rolling frying machine in the market is large, and the energy waste is serious; the coal or wood is used for heating, so that the resource waste is large, and the environmental pollution is serious; the weight is very big, and the transport installation is very difficult scheduling defect, and is effectual.
Disclosure of Invention
The invention aims to provide novel efficient and energy-saving roller-type tea processing equipment so as to solve the problems in the background technology.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a novel efficient energy-saving drum-type tea processing device comprises a drum, wherein a heat insulation layer and a heat preservation layer are sequentially wrapped on the outer wall surface of the drum from inside to outside, and a stepped intermittent electromagnetic induction heating system for intermittently heating the drum and an air inlet and dehumidification system for inputting hot air into the drum and exhausting moisture are further arranged on the outer side surface of the heat preservation layer on the outer wall surface of the drum; the stepped intermittent electromagnetic induction heating system can stably control the temperature in the roller to be 250-280 ℃;
6 to 8 guide blades are arranged on the inner wall surface of the roller at equal intervals, and extend continuously and uninterruptedly from the feed inlet of the roller to the discharge outlet of the roller; namely, one end of each guide blade is close to the feeding port of the roller, and the other end of each guide blade is close to the discharging port of the roller; the guide blade plates are of spiral structures, and an included angle of 15-19 degrees is formed between each guide blade plate and the axial direction of the roller;
the installation inclination angle regulation and control range of the roller is-5 degrees to +8 degrees, and specifically: when the roller is in a front high and rear low state, an inclined angle of 8 degrees is formed between the axial direction of the roller and the horizontal plane; and forming a maximum 5 DEG inclination angle between the axial direction of the roller and the horizontal plane when the roller is in a front low and rear high state;
The structure of the existing fixation machine is as follows: for example, the green removing machine is specially applied to making famous tea, a small cylinder diameter is adopted, the inclined angle of a guide blade plate is 24-28 degrees, and the rotating speed range of a roller is 22-26 revolutions per minute; in addition, the water-removing machine for making the public tea adopts a large cylinder diameter, the inclined angle of the guide blade plate is 10-14 degrees, and the rotating speed range of the roller is 30-34 revolutions per minute (belonging to high rotating speed); the product of the invention is an effective improvement on the existing fixation machine, the inclination angle of the guide blade and the installation inclination angle of the roller are mutually matched and arranged together, the rotating speed regulation range of the roller is larger, and the control range is between 16 and 32 revolutions per minute, so that the applicability of the product of the invention is wider, and the process adjustment capability is stronger; the tea can be suitable for famous tea with one bud and one leaf and popular tea, and comprises various tea such as small She Chong, medium leaf seed, large leaf seed raw materials, arbor seed tea and the like, and a manufacturer can select a working mode with corresponding rotating speed according to requirements.
Specifically: the spiral angle of the guide blade plate of the product can be adjusted to be smaller, so that tea leaves entering the roller rotate along with the guide blade plate and turn upwards, and when the roller rotates for half a circle, the tea leaves attached to the guide blade plate at the upper end gradually fall down to enter the guide blade plate at the lower end, and the fixation operation is repeatedly performed; thus, the contact time of the tea leaves attached to the inner wall of the roller is prolonged (namely, the heating time is prolonged); the temperature is low (20 ℃ lower than the temperature of the conventional roller at present); the temperature of the conventional roller is generally about 320 ℃, and the temperature of the roller of the product is controlled within the range of 250-280 ℃, which is much lower than that of the conventional roller; therefore, the tea leaves can be kept at low temperature for a long time to be turned over for fixation, so that the temperature inside and outside the tea leaves is more uniform, the fixation effect is better, the phenomenon that the tea leaves are burnt and burst is avoided effectively, and the tea leaves with better quality are ensured to be obtained.
The stepped intermittent electromagnetic induction heating system comprises N groups of electromagnetic heating coils, an isolation bracket for winding the electromagnetic heating coils, a temperature sensor for monitoring the temperature in the roller in real time and a temperature controller for managing and controlling the temperature in the roller; the temperature sensor is connected with the temperature controller, and the temperature sensor is used for transmitting the temperature in the roller obtained through real-time monitoring to the temperature controller, and then the temperature controller is used for regulating and controlling the heating temperature of the electromagnetic heating coil on the roller, so that the temperature of tea processed in the roller can be controlled to be a preset temperature value;
in N groups of electromagnetic heating coils, N is a natural number of 3 or 5;
the 1 st group of electromagnetic heating coils and the N group of electromagnetic heating coils are respectively arranged and wound on isolation brackets at the front end and the rear end of the outer wall surface of the roller in a non-equidistant manner;
the 2 nd group of electromagnetic heating coils, … and the (N-1) group of electromagnetic heating coils are respectively arranged and wound on an isolation bracket near the middle section of the outer wall surface of the roller at equal intervals;
gaps with the interval width of 10 cm-15 cm are arranged between two adjacent groups of electromagnetic heating coils and used as low-temperature buffer belts;
the structure sets up like this for be discontinuous intermittent type and connect between the adjacent electromagnetic heating coil, this patent adopts ladder intermittent type formula induction heating cylinder fixation technique, through ladder heating up step by step/cooling, high low temperature intermittent heating technique, make fixation/roll dry by fire/roll stir-fry inside and outside tealeaves temperature even, promote fixation/roll dry by fire/roll the unanimity of the inside and outside moisture content of stir-fry tealeaves, the leaf matter is soft, the color and luster is even moist, fresh and alive, no burnt Bian Jiaoshe, with the moisture content control in anticipated within range (wherein, the moisture content control of fixation tealeaves is 45 + -2%), effectively reduces green tea bitter taste.
The isolation support comprises an upper semicircular support and a lower semicircular support, and the upper semicircular support is connected with the lower semicircular support through an insulating isolation assembly to form a circular cylinder support for winding an electromagnetic heating coil; the circular cylinder support used for winding the electromagnetic heating coil is arranged in an up-down separated insulation and isolation way, and the eddy current is formed after the electromagnetic heating coil is electrified to generate heat for the closed conductive material forming loop, so that the circular cylinder support used for winding the electromagnetic heating coil is required to be arranged in an insulation and isolation way to avoid unnecessary electric energy loss and extra heat dissipation and heat extraction work, and the eddy current is prevented from being formed; the outside of each group of electromagnetic heating coils is provided with corresponding temperature sensors which are used for monitoring the temperature in the part of the roller surrounded by the electromagnetic heating coils of the corresponding group; the temperature sensors are all non-contact temperature sensors, the non-contact temperature sensors are fixedly arranged on the frame, and through holes for monitoring the temperature in the roller by matching with the non-contact temperature sensors are formed in the heat insulation layer and the heat preservation layer which are wrapped on the outer wall surface of the roller; the positions of the through holes are in the radial direction corresponding to the installation horizontal plane of the electromagnetic heating coils and are positioned in the middle position of the width of the electromagnetic heating coils in the corresponding group; the installation directions of the non-contact temperature sensors are perpendicular to the wall surface of the roller and aligned with the center position of the roller respectively with the straight line directions formed by the corresponding through holes.
The temperatures in the areas of the rollers, which are respectively corresponding to the parts surrounded by the electromagnetic heating coils, are distributed in a left-right and up-down stepped manner, so that the temperatures monitored at the middle positions of the axial center and the radial center of the roller can reflect the average value of the temperatures in the corresponding electromagnetic heating coils; the non-contact temperature sensors are fixedly arranged on the rack positioned outside and keep a certain distance from the roller, the influence factors of the tea processing environment are small, the non-contact temperature sensors are sensitive and quick to temperature, the temperature difference variation is small, and the structure is simple and the monitoring temperature is accurate.
The air inlet and dehumidification system comprises an air heater for generating and outputting hot air, a hot air pipeline for conveying the hot air into the roller, a guide plate, a dehumidification cover and a wind shield capable of regulating ascending and descending movements according to requirements; the wind shield is used for regulating and controlling the effective area of the moisture in the roller along the discharge port of the roller to discharge the moisture and exhaust the air outwards; so as to realize the control of the amount of the moisture in the roller discharged along the discharge hole of the roller; the moisture removing cover is fixedly arranged at the discharge hole of the roller and is used for integrally sealing the discharge hole of the roller; an inclined included angle is formed between the plane where the guide plate is positioned and the plane where the roller discharge hole is positioned, the top end of the guide plate is fixedly arranged in the moisture removal cover, and the bottom end of the guide plate faces the roller discharge hole, so that the roller discharge hole can be divided into an upper part and a lower part, namely an air exhaust moisture removal outlet and a hot air inlet; the hot air blower is arranged at the lower end of the discharge port of the roller, the hot air pipeline is communicated with the hot air blower, and hot air generated by the hot air blower is conveyed into the roller along the hot air pipeline; the hot air pipeline penetrates into the roller from the hot air inlet, and the output end of the hot air pipeline is close to the feeding hole of the roller; the wind shield is arranged on the part of the roller discharge hole, which is close to the top end, and the plane where the wind shield is positioned and the plane where the roller discharge hole is positioned keep a parallel position relation; the effective area of the wind shield for blocking the discharge hole of the roller can be regulated and controlled according to the requirement; the maximum downward extension range of the bottom end of the wind shield is 1/3 of the height distance between the upper end and the lower end of the roller discharge hole; at the moment, the radial distance h2 between the bottom end of the wind shield and the lower end part of the roller discharge hole is 2/3 of the height D of the upper end and the lower end of the roller discharge hole, namely h2= (2/3) x D; and the radial distance h1 between the bottom end of the wind shield and the upper end part of the roller discharge hole is 1/3 of the height D of the upper end and the lower end of the roller discharge hole, namely, h1= (1/3) x D, and the units are all mm.
According to the acquisition availability of the high-speed camera, 70% -80% of water vapor in the roller enzyme deactivating machine is mainly concentrated in the height range from the top of the roller to the diameter of the roller 1/3 of the top of the roller in the tea enzyme deactivating process; however, the water content of the tea leaves of different varieties is different; for example, in the preparation process of the de-enzyming technology aiming at the sun-dried green tea, the machine tea and the coarse old leaves, because the water content of the tea raw materials is low, the air humidity in the roller is insufficient, and wind shielding isolation is needed, at the moment, the wind shielding plate is downwards arranged at the position of the height of the discharge hole of the roller, which is 1/3 of the height of the top of the roller, so that the dehumidification is reduced, and the quality requirements of the tea are met; in addition, the humidity of the tea raw materials is small, certain control is needed for dehumidification, excessive dehumidification cannot be achieved, and the humidity in the roller can be exhausted by adopting a conventional dehumidification system, so that the humidity exhaust is difficult to control, and the humidity in the roller is further reduced; if the moisture-removing fan is turned off, air in the drum does not circulate, and moisture cannot be effectively discharged. In addition, in the preparation process of the enzyme deactivating technology of the famous tea, as the water content of the famous tea raw material is high, the air humidity in the roller is enough, so that wind shielding isolation is not needed, namely, the wind shielding plate at the discharge port of the roller is upwards pulled out.
As a preferable scheme: the radial height of each guide blade plate is 7 cm-12 cm, and the thickness of each guide blade plate is 5-7mm. Compared with the radial height of the conventional guide vane plate, the radial height of the guide vane plate in the product is at least 20% higher, the thickness of the guide vane plate in the product is designed to be thick enough, the heat conduction with high speed is utilized, and the uniformity of the temperature inside and outside the tea is ensured to be better.
As a preferable scheme: the left end and the right end of the upper semicircular bracket are respectively provided with an upper protruding connecting sheet, and the two upper protruding connecting sheets are integrally formed with the upper semicircular bracket; the left end and the right end of the lower semicircular bracket are respectively provided with a lower protruding connecting sheet, and the two lower protruding connecting sheets are integrally formed with the lower semicircular bracket; the upper semicircular bracket and the lower semicircular bracket are fixedly arranged on two mounting support frames on the inner side of the frame; the two upper protruding connecting sheets on the left end and the right end of the upper semicircular bracket are respectively in insulating connection with the two lower protruding connecting sheets on the left end and the right end of the lower semicircular bracket through corresponding insulating isolation assemblies; the insulation isolation assembly comprises two insulation gaskets I, a support cushion block and a fastener, and the support cushion block is arranged between the two insulation gaskets I; two lower protruding connecting sheets on the left end and the right end of the lower semicircular bracket are in insulating connection with two mounting support frames on the inner side of the frame; an insulating gasket II is arranged between the two lower protruding connecting sheets and the two mounting support frames positioned on the inner side of the frame respectively; the fastener is run through from top to bottom in proper order through corresponding last protrusion connection piece, insulating gasket I, supporting pad, lower protrusion connection piece and insulating gasket II, and with last protrusion connection piece, insulating gasket I, supporting pad, lower protrusion connection piece and insulating gasket II fixed setting on the erection bracing frame. Thereby realizing that the upper semicircular bracket and the lower semicircular bracket are fixedly arranged on the two mounting support frames at the inner side of the frame.
As a preferable scheme: the fastener is formed by matching and connecting a bolt and a nut.
As a preferable scheme: the insulating gasket I and the insulating gasket II are made of high-temperature-resistant plastic or mica.
As a preferable scheme: the distance between the non-contact temperature sensors and the corresponding through holes is 10 cm-15 cm. The shorter monitoring interval is ensured, and the influence of external heat radiation on temperature monitoring in the roller is avoided as much as possible.
As a preferable scheme: the hot air pipeline is divided into a first section of hot air pipeline, a second section of hot air pipeline and a third section of hot air pipeline, the first section of hot air pipeline is close to a feeding hole of the roller, the third section of hot air pipeline is close to a discharging hole of the roller, and the second section of hot air pipeline is positioned between the first section of hot air pipeline and the third section of hot air pipeline; the side surfaces of the first section of hot air pipeline and the second section of hot air pipeline are respectively provided with a vent hole.
The hot air blower is arranged at the lower end of the discharge hole of the roller, so that the distance of conveying hot air of the hot air pipeline is shortened, the energy consumption can be effectively reduced, the air inlet is kept smooth, and the problem of feeding blockage in the original mode (namely, the hot air pipeline of the conventional fixation machine enters from the feed hole of the roller and occupies the effective feeding space of the tea raw material feed hole, so that the feeding amount of tea from the feed hole of the roller is reduced) and the problem of high energy consumption (namely, the hot air pipeline is longer, and the utilization rate of hot air is not high) are also avoided; adopt among this patent product from the discharge gate of cylinder (from the back air inlet promptly), realize the make full use of to hot-blast energy, the ventilation hole has been seted up along the circumference of air inlet pipeline to the air inlet pipeline that is located the cylinder, and these ventilation holes are arranged and are closely behind the whole appearance, hot-blast that blows out along these ventilation holes can not be attached tealeaves on the cylinder inner wall, because hot-blast can reduce tealeaves surface humidity in the cylinder effectively (not humidity in the tealeaves), thereby make tealeaves carry out the tilting motion from top to bottom along with the rotation of stator vane in the cylinder, can not be attached on the cylinder inner wall promptly. In addition, the hot air fully contacts with the tea leaves in the roller from the feeding hole to the discharging hole, so that the sufficiency of heat and wind energy utilization is realized; moreover, by adopting the hot air inlet mode in the product, the coke edge bursting point of the tea can be effectively reduced, and the dehydration is more sufficient; the humidity in the roller is reduced, and the color and luster of the tea are more bright and fresh.
As a preferable scheme: an inclined included angle of 30-45 degrees is formed between the plane where the guide plate is positioned and the plane where the roller discharge hole is positioned, and the radial distance H2 between the bottom end of the guide plate and the bottom end of the roller discharge hole is 2/3 of the height D of the upper end and the lower end of the roller discharge hole, namely H2= (2/3) x D; the radial distance H1 between the bottom end of the guide plate and the top end of the roller discharge hole is 1/3 of the height D of the upper end and the lower end of the roller discharge hole, namely H1= (1/3) x D, and the units are all mm. In the process of aligning the air exhaust and moisture discharge outlets and using the moisture exhaust fan to exhaust moisture in the roller, the guide plate can effectively block air at the lower part of the guide plate from mixing and entering, and prevent moisture at the part near the bottom (namely, the part near the height of the roller discharge outlet 2/3 upwards from the bottom of the roller) in the roller and hot air just conveyed into the roller from being exhausted along the hot air inlet; because 70% -80% of water vapor in the roller enzyme deactivating machine is mainly concentrated at the height part of the roller discharge hole which is close to the top of the roller and faces downwards by 1/3 in the tea enzyme deactivating process; through setting up the deflector in this patent creation, under the consumption prerequisite of saving the dehumidification and airing exhaust effectively, also prevented simultaneously that most just from carrying hot-blast in getting into the cylinder and the outside air of cylinder from mixing into the dehumidification in-process of airing exhaust together, can be accurate to the effect of carrying out the dehumidification and airing exhaust to main moisture in the cylinder, reduced the energy consumption, improved the efficiency of airing exhaust to the effect of de-enzyming of tealeaves in the cylinder has been improved.
As a preferable scheme: the axial distance between the bottom end of the guide plate and the discharge hole of the roller is 20-30 mm. Therefore, a certain gap distance is kept between the guide plate and the roller all the time, and noise caused by mutual collision caused by mutual close together of the roller and the guide plate after the roller and the guide plate are expanded due to thermal deformation are effectively prevented; greatly reduces noise pollution in the process of the fixation of the roller tea.
As a preferable scheme: the number of ventilation holes on the side of the first section of hot air duct is greater than the number of ventilation holes on the side of the second section of hot air duct.
As a preferable scheme: the wind shield is controlled to ascend and descend through the screw rod, so that the effective area of the wind shield for blocking the discharge hole of the roller can be regulated and controlled according to the requirement. Therefore, according to the needs, the water content of different tea raw materials in the preparation process of the fixation technology of different varieties of tea leaves is different, and the wind shields are arranged in the height position ranges of the upper end and the lower end of the roller discharge hole, which are suitable for being arranged at the upper end and the lower end of the roller discharge hole downwards by 0-1/3.
As a preferable scheme: the diameter of the drum is 800mm or 1100mm.
The basic working principle of the non-contact temperature sensor adopted by the invention is as follows: the temperature of the tea in the roller is measured by using the infrared rays emitted by the heat radiation of the tea in the roller, so that the remote measurement can be performed. The advantages are that: 1. since no direct contact with the medium to be measured occurs, some of the physical properties of the medium to be contacted are not considered, for example: adhesion, corrosion, abrasion, etc. do not cause damage to the sensor. The contact type is faced with additional solutions to these problems; 2. less limited by space. The temperature can be measured remotely for some measured targets which are far away and are not easy to contact; 3. measurements may be performed for some objects that are inconvenient to touch for measurement, such as rotating machinery, objects in motion, and so forth.
The electromagnetic induction heating system is formed by winding a plurality of groups of electromagnetic heating coils on the outer wall surface of the roller, and a gap of 30-50 mm is arranged between the electromagnetic heating coils and the outer wall surface of the roller. The heat insulation device has the advantages that the structural design is adopted, on one hand, the roller made of carbon steel can expand after being heated, so that enough buffer space is ensured, on the other hand, the roller can be insulated, heat dissipation is prevented, meanwhile, the temperature rise of the coil after being heated is prevented, and the heat insulation effect is achieved.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention adopts the mutual matching of the 15-19-degree inclined angle of the guide blade and the-5-8-degree installation inclined angle of the roller, and the rotating speed regulation and control range of the roller is larger, and the control range is between 16-32 revolutions per minute, so that the applicability of the product of the invention is wider, and the process adjustment capability is stronger; the tea can be suitable for famous tea with one bud and one leaf and popular tea, and comprises various tea such as small She Chong, medium leaf seed, large leaf seed raw materials, arbor seed tea and the like, and a manufacturer can select a working mode with corresponding rotating speed according to requirements.
2. By adopting the technical scheme of the invention, the adjacent electromagnetic heating coils are discontinuously connected, the step intermittent induction heating roller fixation technology is adopted, the fixation/rolling baking/rolling stir-fried tea is promoted to be uniform in internal and external temperature through the step-by-step heating/cooling and high-low temperature intermittent heating technology, the consistency of the internal and external water contents of the fixation/rolling baking/rolling stir-fried tea is promoted, the leaf quality is soft, the color and luster are uniform and moist, fresh and alive, no coke Bian Jiaoshe is generated, the water content is controlled within an expected range (wherein the water content of the fixation tea is controlled to be 45+/-2%), and the bitter and astringent taste of green tea is effectively reduced.
Moreover, the isolation bracket can be used for carrying out up-down separation and insulation and isolation on the circular cylinder bracket used for winding the electromagnetic heating coil so as to prevent vortex from forming in the metal bracket (namely the circular cylinder bracket used for winding the electromagnetic heating coil) which is positioned outside the roller and used for supporting and fixing the electromagnetic heating coil, thus effectively avoiding unnecessary electric energy loss and extra heat dissipation and heat extraction work in the circular cylinder bracket used for winding the electromagnetic heating coil; therefore, the energy consumption is reduced, and the heating work efficiency of the tea processing equipment is improved.
3. By adopting the technical scheme of the invention, the circular cylinder bracket for winding the electromagnetic heating coil can be arranged in an up-down separated and insulated way, so that vortex is prevented from being formed in the metal bracket (namely the circular cylinder bracket for winding the electromagnetic heating coil) which is positioned outside the roller and used for supporting and fixing the electromagnetic heating coil, and thus unnecessary electric energy loss and extra heat dissipation and heat extraction work are effectively avoided; therefore, the energy consumption is reduced, and the heating work efficiency of the tea processing equipment is improved.
4. The non-contact temperature sensors are fixedly arranged on the external rack and keep a certain distance from the roller, the influence factors of the tea processing environment are small, the non-contact temperature sensors are sensitive and quick to temperature, the temperature difference variation is small, the structure is simple, the monitoring temperature is accurate, and the energy utilization efficiency is improved. Therefore, the electromagnetic heating and far infrared temperature measurement technology is applied to tea processing machinery, and has important significance for improving the technical level of tea processing machines, realizing energy conservation and emission reduction of tea processing and keeping long-term targets of high quality of products.
5. By adopting the technical scheme of the invention, the corresponding windshield wet blocking device is arranged, so that the discharge amount of the moisture in the roller along the discharge hole of the roller is controlled; in this way (especially for the sun-dried green tea, machine tea and coarse old leaves with low humidity of the tea raw materials), the excessive and excessive discharge of the humidity (including water vapor) can be prevented, and the control of the humidity and air exhaust in the roller tea de-enzyming process is enhanced. According to the acquisition availability of the high-speed camera, 70% -80% of water vapor in the roller enzyme deactivating machine is mainly concentrated in the height range of the diameter of the roller, which is close to the top of the roller and is 1/3 of the height range of the diameter of the roller, downwards from the top of the roller in the tea enzyme deactivating process; however, the water content of the tea leaves of different varieties is different; for example, in the preparation process of the de-enzyming technology aiming at the sun-dried green tea, the machine tea and the coarse old leaves, because the water content of the tea raw materials is low, the air humidity in the roller is insufficient, and wind shielding isolation is needed, at the moment, the wind shielding plate is downwards arranged at the height positions of the upper end part of the roller discharge hole and the lower end part of the roller discharge hole, which are 1/3 of the height positions of the upper end part of the roller discharge hole, so that the dehumidification is reduced, and the de-enzyming technology meets the quality requirements of the tea after de-enzyming; in addition, the humidity of the tea raw materials is small, certain control is needed for dehumidification, excessive dehumidification cannot be achieved, and the humidity in the roller can be exhausted by adopting a conventional dehumidification system, so that the humidity exhaust is difficult to control, and the humidity in the roller is further reduced; if the moisture-removing fan is turned off, air in the drum does not circulate, and moisture cannot be effectively discharged. In addition, in the preparation process of the enzyme deactivating technology for the famous tea, as the water content of the famous tea raw material is high, the air humidity in the roller is enough, and therefore wind shielding isolation is not needed, and the wind shielding plate close to the discharge port of the roller is upwards pulled away.
6. The guide plate is arranged in the moisture exhaust cover, so that in the process of aligning the air exhaust and moisture exhaust outlet in the roller discharge port and using the moisture exhaust fan to exhaust moisture in the roller, the guide plate can effectively block air at the lower part of the guide plate from mixing and entering, and prevent moisture in the roller near the bottom part (namely near the height part of the roller discharge port upwards by 2/3 of the bottom of the roller) and hot air just conveyed into the roller from being exhausted along the hot air inlet; because 70% -80% of water vapor in the roller enzyme deactivating machine is mainly concentrated at the height part of the roller discharge hole which is close to the top of the roller and faces downwards by 1/3 in the tea enzyme deactivating process; through setting up the deflector in this patent creation, under the consumption prerequisite of saving the dehumidification and airing exhaust effectively, also prevented simultaneously that most just from carrying hot-blast in getting into the cylinder and the outside air of cylinder from mixing into the dehumidification in-process of airing exhaust together, can be accurate to the effect of carrying out the dehumidification and airing exhaust to main moisture in the cylinder, reduced the energy consumption, improved the efficiency of airing exhaust to the effect of de-enzyming of tealeaves in the cylinder has been improved.
7. According to the invention, air is fed from the discharge port positioned at the rear of the roller, so that full utilization of hot air energy is realized, the air inlet pipeline positioned in the roller is provided with the ventilation holes along the circumferential direction of the air inlet pipeline, the ventilation holes are distributed in a shape of being dense in front and sparse in rear, hot air blown out along the ventilation holes cannot adhere tea leaves on the inner wall of the roller, and the hot air can effectively reduce the surface humidity of the tea leaves in the roller, so that the tea leaves can turn up and down along with the rotation of the guide vane plate in the roller, and cannot adhere on the inner wall of the roller. In addition, the hot air fully contacts with the tea leaves in the roller from the feeding hole to the discharging hole, so that the sufficiency of heat and wind energy utilization is realized; moreover, by adopting the hot air inlet mode in the product, the coke edge bursting point of the tea can be effectively reduced, and the dehydration is more sufficient; the humidity in the roller is reduced, and the color and luster of the tea are more bright and fresh.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an air intake and dehumidification system applied to a roller type tea processing device in the invention.
Fig. 2 is a schematic view showing the installation position of the guide plate in fig. 1.
Fig. 3 is a schematic view of the installation position of the wind deflector in fig. 1.
Fig. 4 is a schematic structural view of an input hot air applied to a drum-type tea processing device in the present invention.
Fig. 5 is a schematic view of the hot air duct in fig. 4.
Fig. 6 is a schematic diagram of a structure in which 3 groups of electromagnetic heating coils and temperature measuring points thereof are arranged outside a roller according to the invention.
Fig. 7 is a schematic diagram of a structure in which 5 groups of electromagnetic heating coils and temperature measuring points thereof are arranged outside a roller according to the invention.
Fig. 8 is a schematic structural view of an electromagnetic heating coil mounting isolation bracket for a drum-type tea processing device in the invention.
Fig. 9 is an enlarged schematic view of a part of the structure in fig. 8.
The numbers in the figures are marked: the drum (10), the feed inlet 101, the discharge gate 102, stator vane (60), hot air duct (61), first section hot air duct (611), second section hot air duct (612), third section hot air duct (613), air heater (62), wet hood (80), deflector (81), deep bead (84), upper semicircle support (11), lower semicircle support (12), upper protrusion connection piece (111), lower protrusion connection piece (121), insulating gasket I (131), insulating gasket II (132), supporting cushion (14), fastener (15), installing support frame (16), frame (17), insulating isolation component (18), electromagnetic heating coil (21, 22, 23, 24, 25), low temperature buffer zone (31, 32, 33, 34, 35), through-hole (51, 52, 53, 54, 55).
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 9: the invention provides a specific embodiment of novel efficient energy-saving roller-type tea processing equipment,
the device comprises a roller 10, wherein a heat insulation layer and a heat preservation layer are sequentially wrapped on the outer wall surface of the roller 10 from inside to outside, and a stepped intermittent electromagnetic induction heating system for intermittently heating the roller 10 and an air inlet and moisture removal system for inputting hot air into the roller 10 and discharging moisture are further arranged on the outer side surface of the heat preservation layer on the outer wall surface of the roller 10; the stepped intermittent electromagnetic induction heating system can stably control the temperature in the roller 10 to be 250-280 ℃;
6 to 8 guide blades 60 are installed on the inner wall surface of the drum 10 at equal intervals, and the guide blades 60 extend continuously and uninterruptedly from the feed inlet 101 of the drum 10 to the discharge outlet 102 of the drum 10; that is, one end of each guide vane plate 60 is close to the feed inlet 101 of the drum 10, and the other end is close to the discharge outlet 102 of the drum 10; the guide vane plates 60 are in a spiral structure, and an included angle of 15-19 degrees is formed between each guide vane plate 60 and the axial direction of the roller 10;
the installation inclination angle regulation range of the roller 10 is-5 degrees to +8 degrees, specifically: when the drum 10 is in a front high and rear low state, an inclination angle of 8 degrees is formed between the axial direction of the drum 10 and the horizontal plane at maximum; and forming a maximum 5 ° tilt angle between the axial direction of the drum 10 and the horizontal plane when the drum 10 assumes a front low-rear high state;
The structure of the existing fixation machine is as follows: for example, the water-removing machine is specially applied to making famous tea, a small cylinder diameter is adopted, the inclined angle of the guide vane plate 60 is 24-28 degrees, and the rotating speed range of the roller 10 is 22-26 revolutions per minute; in addition, the rotary drum is applied to a fixation machine for manufacturing mass tea, and adopts a large drum diameter, the inclined angle of the guide vane plate 60 is 10-14 degrees, and the rotating speed range of the rotary drum 10 is 30-34 revolutions per minute (belonging to high rotating speed); the product of the invention is an effective improvement on the existing fixation machine, the inclination angle of the guide vane plate 60 and the installation inclination angle of the roller 10 are mutually matched and arranged together, the rotating speed regulation and control range of the roller 10 is larger, and the control range is between 16 and 32 revolutions per minute, so that the applicability of the product of the invention is wider, and the process adjustment capability is stronger; the tea can be suitable for famous tea with one bud and one leaf and popular tea, and comprises various tea such as small She Chong, medium leaf seed, large leaf seed raw materials, arbor seed tea and the like, and a manufacturer can select a working mode with corresponding rotating speed according to requirements.
Specifically: the spiral angle of the guide vane plate 60 of the product can be adjusted to be smaller, so that tea leaves entering the roller 10 rotate along with the guide vane plate 60 along with the roller 10 to turn upwards, and when the roller 10 rotates for half a turn, the tea leaves attached to the guide vane plate 60 at the upper end gradually drop onto the guide vane plate 60 at the lower end, and the fixation operation is repeatedly performed; thus, the contact time of the tea leaves attached to the inner wall of the roller is prolonged (namely, the heating time is prolonged); the temperature is low (20 ℃ lower than the temperature of the conventional roller at present); the temperature of the conventional roller is generally about 320 ℃, and the temperature of the roller 10 of the product is controlled within the range of 250-280 ℃, which is much lower than the temperature of the conventional roller; therefore, the tea leaves can be kept at low temperature for a long time to be turned over for fixation, so that the temperature inside and outside the tea leaves is more uniform, the fixation effect is better, the phenomenon that the tea leaves are burnt and burst is avoided effectively, and the tea leaves with better quality are ensured to be obtained.
As shown in fig. 1 to 5: the air intake and dehumidification system comprises an air heater 62 for generating and outputting hot air, a hot air pipeline 61 for conveying the hot air into the roller 10, a guide plate 81, a dehumidification cover 80 and a wind shield 84 capable of regulating ascending and descending movements according to the need; the wind guard 84 is used for regulating and controlling the effective area of the moisture in the drum 10 for exhausting the moisture and the air outwards along the drum discharge hole 102; this achieves a control of how much moisture is discharged from the drum 10 along the drum discharge port 102; the moisture removing cover 80 is fixedly arranged at the roller discharge hole 102, and the moisture removing cover 80 is used for integrally covering the roller discharge hole 102; an inclined included angle is formed between the plane of the guide plate 81 and the plane of the roller discharge hole 102, the top end of the guide plate 81 is fixedly arranged in the moisture discharging cover 80, and the bottom end of the guide plate 81 faces the roller discharge hole 102, so that the roller discharge hole 102 can be divided into an upper part and a lower part, namely an air exhaust moisture discharging outlet and a hot air inlet; the hot air blower 62 is arranged at the lower end of the discharge port 102 of the roller 10, the hot air pipeline 61 is communicated with the hot air blower 62, and hot air generated by the hot air blower 62 is conveyed into the roller 10 along the hot air pipeline 61; the hot air pipeline 61 penetrates into the roller 10 from a hot air inlet, and the output end of the hot air pipeline 61 is close to the feeding hole 101 of the roller 10; the wind shield 84 is arranged on the part of the roller discharge hole 102 close to the top end, and the plane of the wind shield 84 and the plane of the roller discharge hole 102 keep a parallel position relation; the effective area of the wind shield 84 for blocking the roller discharge hole 102 can be regulated and controlled according to the requirement; the maximum downward extension range of the bottom end of the wind shield 84 is 1/3 of the height distance between the upper end and the lower end of the roller discharge hole 102, wherein the upper end of the roller discharge hole 102 is downward; at this time, the radial distance h2 between the bottom end of the wind shield 84 and the lower end of the drum discharge opening 102 is 2/3 of the height D of the upper and lower ends of the drum discharge opening 102, i.e., h2= (2/3) x D; and the radial distance h1 between the bottom end of the wind shield 84 and the upper end of the roller discharge opening 102 is 1/3 of the height D of the upper and lower ends of the roller discharge opening 102, namely h1= (1/3) x D, and the units are all mm.
According to the acquisition availability of a high-speed camera, 70% -80% of water vapor in a roller fixation machine is mainly concentrated in the height range from the top of the roller 10 to the diameter of the roller 1/3 of the top of the roller 10 in the tea fixation process; however, the water content of the tea leaves of different varieties is different; for example, in the preparation process of the de-enzyming technology for the sun-dried green tea, the machine tea and the coarse old leaves, because the water content of the tea raw materials is low, the air humidity in the roller 10 is insufficient, and wind shielding isolation is needed, at the moment, the wind shielding plate 84 is downwards arranged at the height position of the roller discharge hole 102 of which the top of the roller 10 is downwards 1/3, so that the dehumidification is reduced, and the quality requirements of the tea are met; in addition, the humidity of the tea raw materials is small, certain control is needed for dehumidification, excessive dehumidification cannot be achieved, the humidity in the roller 10 can be exhausted by adopting a conventional dehumidification system, so that the humidity exhaust is difficult to control, and the humidity in the roller 10 is further reduced; if the moisture discharging fan is turned off, air in the drum 10 does not circulate, and moisture cannot be effectively discharged. In addition, in the preparation process of the enzyme deactivation technology of the famous tea, because the water content of the famous tea raw material is high, the air humidity in the roller 10 is enough, so that wind shielding isolation is not needed, namely, the wind shielding plate 84 at the roller discharge hole 102 is pulled upwards.
As shown in fig. 4 and 5: the hot air pipeline 61 is divided into a first section of hot air pipeline 611, a second section of hot air pipeline 612 and a third section of hot air pipeline 613, wherein the first section of hot air pipeline 611 is close to the feeding inlet 101 of the drum 10, the third section of hot air pipeline 613 is close to the discharging outlet 102 of the drum 10, and the second section of hot air pipeline 612 is positioned between the first section of hot air pipeline 611 and the third section of hot air pipeline 613; ventilation holes are formed in the side surfaces of the first section of hot air pipeline 611 and the second section of hot air pipeline 612. The hot air blower 62 is arranged at the lower end of the discharge port 102 of the roller 10, so that the distance of conveying hot air of the hot air pipeline 61 is shortened, the energy consumption can be effectively reduced, the air inlet is kept smooth, and the problem of feeding blockage in the original mode (namely, the hot air pipeline 61 of the conventional fixation machine enters from the feed port 101 of the roller 10 and occupies the effective feeding space of the tea raw material feed port 101, so that the feeding amount of tea from the roller feed port 101 is reduced) and the problem of high energy consumption (namely, the hot air pipeline 61 is longer, so that the utilization rate of hot air is not high) are avoided; adopt among this patent product from the discharge gate 102 of cylinder (from the back) air inlet promptly, realize the make full use of to hot-blast energy, the ventilation hole has been seted up along the circumference of air inlet pipeline to the air inlet pipeline that is located cylinder 10, and these ventilation holes are arranged and are closely behind the whole appearance, hot-blast that blows out along these ventilation holes can not be attached tealeaves on cylinder 10 inner wall, because hot-blast can reduce tealeaves surface humidity (not be tealeaves interior humidity) in cylinder 10 effectively, thereby make tealeaves carry out the tilting motion from top to bottom along with the rotation of interior guide vane of cylinder 10, can not attach on cylinder 10 inner wall promptly. In addition, the hot air fully contacts with tea leaves in the roller 10 from the feeding hole 101 to the discharging hole 102, so that the sufficiency of heat and wind energy utilization is realized; moreover, by adopting the hot air inlet mode in the product, the coke edge bursting point of the tea can be effectively reduced, and the dehydration is more sufficient; the humidity in the roller is reduced, and the color and luster of the tea are more bright and fresh.
As shown in fig. 2: an inclined included angle of 30-45 degrees is formed between the plane where the guide plate 81 is positioned and the plane where the roller discharge hole 102 is positioned, and the radial distance H2 between the bottom end of the guide plate 81 and the bottom end of the roller discharge hole 102 is 2/3 of the height D of the upper end and the lower end of the roller discharge hole 102, namely H2= (2/3) x D; the radial distance H1 between the bottom end of the guide plate 81 and the top end of the roller discharge port 102 is 1/3 of the height D of the upper and lower ends of the roller discharge port 102, that is, h1= (1/3) ×d, and the units are all mm. In this way, the guide plate 81 can effectively block the air at the lower part of the guide plate 81 from mixing and entering during the process of aligning the air exhaust and moisture discharge outlet and using the moisture exhaust fan to exhaust the moisture in the drum 10, and prevent the moisture in the drum 10 near the bottom part (i.e. near the height part of the drum discharge outlet 102 2/3 upwards from the bottom of the drum 10) and the hot air just conveyed into the drum 10 from being exhausted along the hot air inlet; because 70% -80% of water vapor in the roller enzyme deactivating machine is mainly concentrated at the height part of the roller discharge hole 102, which is close to the top of the roller 10 and downward by 1/3, in the tea enzyme deactivating process; through setting up deflector 81 in this patent creation, under the consumption prerequisite of saving the exhaust of damp effectively, also prevented simultaneously that most just carrying the hot-blast in getting into cylinder 10 and the outside air of cylinder 10 from mixing into the exhaust of damp in-process of airing exhaust together, can be accurate to the effect of main moisture in the cylinder 10 of airing exhaust, reduced the energy consumption, improved the exhaust efficiency of airing exhaust to the fixation effect of tealeaves in the cylinder 10 has been improved.
As shown in fig. 2: the axial distance between the bottom end of the guide plate 81 and the roller discharge hole 102 is 20-30 mm gap. In this way, a certain gap distance is always kept between the guide plate 81 and the roller 10, so that noise and noise caused by mutual collision caused by mutual close together between the roller 10 and the guide plate 81 due to expansion of the roller 10 and the guide plate 81 after thermal deformation are effectively prevented; greatly reduces noise pollution in the process of the fixation of the roller tea.
As shown in fig. 5: the number of ventilation holes on the side of the first section of hot air duct 61 is greater than the number of ventilation holes on the side of the second section of hot air duct 61.
As shown in fig. 1 and 3: the axial distance between the wind shield 84 and the roller discharge opening 102 is 20-30 mm clearance. In this way, a certain gap distance is kept between the wind shield 84 and the roller 10 all the time, so that noise and noise caused by collision between the roller 10 and the wind shield 84, which are close to each other and are close to each other, are effectively prevented after the roller 10 and the wind shield 84 are expanded due to thermal deformation; greatly reduces noise pollution in the tea enzyme deactivating process in the roller 10.
The wind shield 84 is controlled to ascend and descend through a screw rod, so that the effective area of the wind shield 84 blocking the roller discharge hole 102 can be regulated and controlled according to the requirement. In this way, the wind shields 84 are arranged in the height position ranges of the upper end and the lower end of the roller discharging hole 102, which are suitable for the upper end and the lower end of the roller discharging hole 102 facing downwards by 0-1/3, according to the needs and aiming at different water contents of different tea raw materials in the preparation process of the fixation technology of different tea leaves.
By adopting the technical scheme of the invention, the corresponding windshield wet blocking device is arranged, so that the amount of the discharged moisture in the roller 10 along the roller discharge hole 102 is controlled; in this way (especially for the sun-dried green tea, machine tea and coarse old leaves with low humidity of the tea raw materials), the excessive and excessive discharge of the humidity (including water vapor) can be prevented, and the control of the humidity and air exhaust in the roller tea de-enzyming process is enhanced. According to the acquisition availability of the high-speed camera, 70% -80% of water vapor in the roller enzyme deactivating machine is mainly concentrated in the height range of the diameter of the roller, which is close to the top of the roller 10 and is 1/3 of the top of the roller 10, in the tea enzyme deactivating process; however, the water content of the tea leaves of different varieties is different; for example, in the preparation process of the de-enzyming technology for the sun-dried green tea, the machine tea and the coarse old leaves, because the water content of the tea raw materials is low, the air humidity in the roller 10 is insufficient, and wind shielding isolation is needed, at the moment, the wind shielding plate 84 is downwards arranged at the height positions of the upper end part of the roller discharge hole 102, which is 1/3 of the height positions of the upper end part of the roller discharge hole 102, so that the dehumidification is reduced, and the quality requirements of the de-enzymed tea are met; in addition, the humidity of the tea raw materials is small, certain control is needed for dehumidification, excessive dehumidification cannot be achieved, the humidity in the roller 10 can be exhausted by adopting a conventional dehumidification system, so that the humidity exhaust is difficult to control, and the humidity in the roller 10 is further reduced; if the moisture discharging fan is turned off, air in the drum 10 does not circulate, and moisture cannot be effectively discharged. In addition, in the preparation process of the enzyme deactivating technology for the famous tea, the moisture content of the famous tea raw material is high, and the air humidity in the roller 10 is enough, so that wind shielding isolation is not needed, and the wind shielding plate 84 close to the roller discharge hole 102 is pulled upwards.
Moreover, the guide plate 81 is arranged in the humidity exhaust cover 80 by adopting the invention, so that in the process of aligning the air exhaust and humidity exhaust outlet in the roller discharge hole 102 and using the humidity exhaust fan to exhaust the humidity in the roller 10, the guide plate 81 can effectively block the air at the lower part of the guide plate 81 from being mixed and entering, and prevent the humidity at the part near the bottom part (namely, the part near the height of the roller discharge hole 102, which is 2/3 upwards of the bottom of the roller 10) in the roller 10 and the hot air just conveyed into the roller 10 from being exhausted along the hot air inlet; because 70% -80% of water vapor in the roller enzyme deactivating machine is mainly concentrated at the height part of the roller discharge hole 102, which is close to the top of the roller 10 and downward by 1/3, in the tea enzyme deactivating process; through setting up deflector 81 in this patent creation, under the consumption prerequisite of saving the exhaust of damp effectively, also prevented simultaneously that most just carrying the hot-blast in getting into cylinder 10 and the outside air of cylinder 10 from mixing into the exhaust of damp in-process of airing exhaust together, can be accurate to the effect of main moisture in the cylinder 10 of airing exhaust, reduced the energy consumption, improved the exhaust efficiency of airing exhaust to the fixation effect of tealeaves in the cylinder 10 has been improved.
In addition, the invention adopts the air inlet from the discharge hole positioned at the rear of the roller to fully utilize the energy of the hot air, the air inlet pipeline positioned in the roller is provided with the ventilation holes along the circumferential direction of the air inlet pipeline, the ventilation holes are distributed in a whole in a front-dense and rear-sparse shape, the hot air blown out along the ventilation holes can not attach tea leaves on the inner wall of the roller, and the hot air can effectively reduce the humidity of the tea leaves in the roller, so that the tea leaves can not attach on the inner wall of the roller due to the upward and downward overturning motion of the tea leaves along with the rotation of the guide vane plate in the roller. In addition, the hot air fully contacts with the tea leaves in the roller from the feeding hole to the discharging hole, so that the sufficiency of heat and wind energy utilization is realized; moreover, by adopting the hot air inlet mode in the product, the coke edge bursting point of the tea can be effectively reduced, and the dehydration is more sufficient; the humidity in the roller is reduced, and the color and luster of the tea are more bright and fresh.
As shown in fig. 6 to 9: the stepped intermittent electromagnetic induction heating system comprises N groups of electromagnetic heating coils, an isolation bracket for winding the electromagnetic heating coils, a temperature sensor for monitoring the temperature in the roller in real time, and a temperature controller (plc controller) for managing and controlling the temperature in the roller; the temperature sensor is connected with the temperature controller, and the temperature sensor transmits the temperature in the roller obtained by real-time monitoring to the temperature controller, and then the temperature controller regulates and controls the heating temperature of the electromagnetic heating coil on the roller, so that the temperature of tea leaves processed in the roller (including processing technologies such as fixation, baking and the like) can be controlled at a preset temperature value;
in N groups of electromagnetic heating coils, N is a natural number of 3 or 5;
as shown in fig. 6, when n=3, the 1 st group of electromagnetic heating coils 21 and the 3 rd group of electromagnetic heating coils 23 are respectively arranged and wound on the isolation brackets at the front and rear end parts of the outer wall surface of the drum 10 in a non-equidistant manner, and the 2 nd group of electromagnetic heating coils 22 are arranged and wound on the isolation brackets near the middle section of the outer wall surface of the drum 10 in a equidistant manner; a gap with a spacing width of 10cm to 15cm is arranged between two adjacent groups of electromagnetic heating coils as a low-temperature buffer zone, namely, a gap with a spacing width of 10cm to 15cm is arranged between the 1 st group of electromagnetic heating coils 21 and the 2 nd group of electromagnetic heating coils 22 as a low-temperature buffer zone 31, a gap with a spacing width of 10cm to 15cm is arranged between the 2 nd group of electromagnetic heating coils 22 and the 3 rd group of electromagnetic heating coils 23 as a low-temperature buffer zone 32, and the tail end of the 3 rd group of electromagnetic heating coils 23 is also provided with a low-temperature buffer zone 33.
As shown in fig. 7, when n=5, the 1 st group of electromagnetic heating coils and the 5 th group of electromagnetic heating coils are respectively arranged and wound on the isolation brackets at the front end and the rear end of the outer wall surface of the roller in a non-equidistant manner, and the 2 nd group of electromagnetic heating coils, the 3 rd group of electromagnetic heating coils and the 4 th group of electromagnetic heating coils are sequentially arranged and wound on the isolation brackets near the middle section of the outer wall surface of the roller in a equidistant manner from left to right; a gap with a spacing width of 10 cm-15 cm is arranged between two adjacent groups of electromagnetic heating coils as a low-temperature buffer zone, namely, a gap with a spacing width of 10 cm-15 cm is arranged between a 1 st group of electromagnetic heating coils and a 2 nd group of electromagnetic heating coils as a low-temperature buffer zone 31, a gap with a spacing width of 10 cm-15 cm is arranged between a 2 nd group of electromagnetic heating coils and a 3 rd group of electromagnetic heating coils as a low-temperature buffer zone 32, a gap with a spacing width of 10 cm-15 cm is arranged between a 3 rd group of electromagnetic heating coils and a 4 th group of electromagnetic heating coils as a low-temperature buffer zone 33, a gap with a spacing width of 10 cm-15 cm is arranged between a 4 th group of electromagnetic heating coils and a 5 th group of electromagnetic heating coils as a low-temperature buffer zone 34, and a low-temperature buffer zone 35 is also arranged at the tail end of the 5 th group of electromagnetic heating coils 25.
The structure sets up like this for be discontinuous intermittent type and connect between the adjacent electromagnetic heating coil, this patent adopts ladder intermittent type formula induction heating cylinder fixation technique, through ladder heating up step by step/cooling, high low temperature intermittent heating technique, make fixation/roll dry by fire/roll stir-fry inside and outside tealeaves temperature even, promote fixation/roll dry by fire/roll the unanimity of the inside and outside moisture content of stir-fry tealeaves, the leaf matter is soft, the color and luster is even moist, fresh and alive, no burnt Bian Jiaoshe, with the moisture content control in anticipated within range (wherein, the moisture content control of fixation tealeaves is 45 + -2%), effectively reduces green tea bitter taste.
As shown in fig. 8 to 9: the isolation bracket comprises an upper semicircular bracket 11 and a lower semicircular bracket 12, and the upper semicircular bracket 11 and the lower semicircular bracket 12 are connected through an insulating isolation assembly 18 to form a circular cylinder bracket for winding an electromagnetic heating coil; the circular cylinder support used for winding the electromagnetic heating coil is arranged in an up-down separation insulation and isolation mode, and the fact that eddy currents are formed after the electromagnetic heating coil is electrified to generate heat for a closed conductive material forming loop is considered, so that in order to avoid unnecessary electric energy loss and extra heat dissipation and heat extraction work, the circular cylinder support used for winding the electromagnetic heating coil is required to be arranged in an insulation and isolation mode, and eddy currents are prevented from being formed.
As shown in fig. 6: according to a specific implementation mode of the temperature measuring point mounting structure of the temperature sensor, corresponding temperature sensors are arranged outside each group of electromagnetic heating coils (21, 22 and 23) and are used for monitoring the temperature in the range of the part of the roller 10 surrounded by the electromagnetic heating coils (21, 22 and 23) of the corresponding group, non-contact temperature sensors are adopted, the non-contact temperature sensors are fixedly mounted on a frame, and through holes (51, 52 and 53) for monitoring the temperature in the roller 10 in cooperation with the non-contact temperature sensors are formed in a heat insulating layer and a heat insulating layer which are wrapped on the outer wall surface of the roller 10; the positions of the through holes (51, 52, 53) are in the radial direction corresponding to the installation horizontal plane of the electromagnetic heating coils (21, 22, 23) and are positioned at the middle position of the width of the corresponding group of the electromagnetic heating coils (21, 22, 23); the installation directions of the non-contact temperature sensors are respectively perpendicular to the wall surface of the roller 10 and aligned with the center position of the roller 10 along the straight line directions formed by the corresponding through holes (51, 52 and 53); the temperatures within the range of the part of the roller 10 surrounded by the corresponding electromagnetic heating coils (21, 22, 23) are distributed in a left-right and up-down stepped manner, so that the temperatures monitored at the middle positions of the axial center and the radial center of the roller 10 can reflect the average value of the temperatures in the corresponding electromagnetic heating coils (21, 22, 23); the non-contact temperature sensors are fixedly arranged on the rack positioned outside and keep a certain distance from the roller, the influence factors of the tea processing environment are small, the non-contact temperature sensors are sensitive and quick to temperature, the temperature difference variation is small, and the structure is simple and the monitoring temperature is accurate.
Wherein, the distance between the non-contact temperature sensors and the corresponding through holes (51, 52, 53) is 10 cm-15 cm. A short monitoring interval is ensured, and the influence of external heat radiation on the temperature monitoring in the roller 10 is avoided as much as possible. The heat insulation layer is formed by connecting a plurality of mica plates.
As shown in fig. 7: according to another specific implementation mode of the temperature measuring point mounting structure of the temperature sensor, corresponding temperature sensors are arranged outside each group of electromagnetic heating coils (21, 22, 23, 24 and 25), the temperature sensors are used for monitoring the temperature in the range of the part of the roller 10 surrounded by the electromagnetic heating coils (21, 22, 23, 24 and 25) of the corresponding groups, the temperature sensors are all non-contact temperature sensors which are fixedly mounted on a rack, and through holes (51, 52, 53, 54 and 55) which are used for being matched with the non-contact temperature sensors to monitor the temperature in the roller 10 are formed in a heat insulation layer and a heat preservation layer which are wrapped on the outer wall surface of the roller 10; the positions of the through holes (51, 52, 53, 54, 55) are radial directions corresponding to the installation horizontal planes of the electromagnetic heating coils (21, 22, 23, 24, 25) and are positioned at the middle positions of the widths of the corresponding groups of the electromagnetic heating coils (21, 22, 23, 24, 25); the installation directions of the non-contact temperature sensors are respectively perpendicular to the wall surface of the roller 10 and aligned with the center position of the roller 10 along the straight line directions formed by the corresponding through holes (51, 52, 53, 54 and 55); the temperatures within the range of the part of the drum 10 surrounded by the corresponding electromagnetic heating coils (21, 22, 23, 24, 25) are distributed in a left-right and up-down stepped manner, so that the temperatures monitored at the middle positions of the axial center and the radial center of the drum 10 can reflect the average value of the temperatures in the corresponding electromagnetic heating coils (21, 22, 23, 24, 25); the non-contact temperature sensors are fixedly arranged on the rack positioned outside and keep a certain distance from the roller, the influence factors of the tea processing environment are small, the non-contact temperature sensors are sensitive and quick to temperature, the temperature difference variation is small, and the structure is simple and the monitoring temperature is accurate.
Wherein, the distance between the non-contact temperature sensors and the corresponding through holes (51, 52, 53, 54, 55) is 10 cm-15 cm. A short monitoring interval is ensured, and the influence of external heat radiation on the temperature monitoring in the roller 10 is avoided as much as possible.
The heat insulation layer is formed by connecting a plurality of mica plates.
As shown in fig. 8: upper protruding connecting pieces 111 are respectively arranged at the left end and the right end of the upper semicircular bracket 11, and the two upper protruding connecting pieces 111 are integrally formed with the upper semicircular bracket 11; lower protruding connecting pieces 121 are respectively arranged at the left end and the right end of the lower semicircular bracket 12, and the two lower protruding connecting pieces 121 are integrally formed with the lower semicircular bracket 12; the upper semicircular bracket 11 and the lower semicircular bracket 12 are fixedly arranged on two mounting support frames 16 on the inner side of the frame 17; the two upper protruding connecting pieces 111 on the left and right ends of the upper semicircular bracket 11 are respectively in insulating connection with the two lower protruding connecting pieces 121 on the left and right ends of the lower semicircular bracket 12 through corresponding insulating isolation assemblies 18; as shown in fig. 8 to 9: the insulating isolation assembly 18 comprises two insulating gaskets I131, a supporting cushion block 14 and a fastener 15, and the supporting cushion block 14 is arranged between the two insulating gaskets I131; two lower protruding connecting pieces 121 on the left end and the right end of the lower semicircular bracket 12 are in insulating connection with two mounting support frames 16 on the inner side of the frame 17; an insulating gasket II 132 is arranged between the two lower protruding connecting sheets 121 and the two mounting support frames 16 positioned on the inner side of the frame 17 respectively; the fastener 15 sequentially penetrates through the corresponding upper protruding connecting sheet 111, the insulating gasket I131, the supporting cushion block 14, the lower protruding connecting sheet 121 and the insulating gasket II 132 from top to bottom, and the upper protruding connecting sheet 111, the insulating gasket I131, the supporting cushion block 14, the lower protruding connecting sheet 121 and the insulating gasket II 132 are fixedly arranged on the mounting support frame 16. Thereby realizing the fixed installation of the upper semicircular bracket 11 and the lower semicircular bracket 12 on the two installation supporting frames 16 on the inner side of the frame 17.
Wherein, the fastener 15 is formed by matching and connecting a bolt and a nut. The insulating gasket I131 and the insulating gasket II 132 are made of high-temperature-resistant plastic or mica.
The arrangement length of each group of electromagnetic heating coils is 1.5-2.0 d, d is the diameter of the roller, and the unit is mm.
The basic working principle of the non-contact temperature sensor adopted by the invention is as follows: the temperature of the tea leaves in the roller 10 is measured by infrared rays emitted by heat radiation of the tea leaves in the roller 10, and remote measurement can be performed. The advantages are that: 1. since no direct contact with the medium to be measured occurs, some of the physical properties of the medium to be contacted are not considered, for example: adhesion, corrosion, abrasion, etc. do not cause damage to the sensor. The contact type is faced with additional solutions to these problems; 2. less limited by space. The temperature can be measured remotely for some measured targets which are far away and are not easy to contact; 3. measurements may be performed for some objects that are inconvenient to touch for measurement, such as rotating machinery, objects in motion, and so forth.
By adopting the technical scheme of the invention, the adjacent electromagnetic heating coils are discontinuously connected, the step intermittent induction heating roller fixation technology is adopted, the fixation/rolling baking/rolling stir-fried tea is promoted to be uniform in internal and external temperature through the step-by-step heating/cooling and high-low temperature intermittent heating technology, the consistency of the internal and external water contents of the fixation/rolling baking/rolling stir-fried tea is promoted, the leaf quality is soft, the color and luster are uniform and moist, fresh and alive, no coke Bian Jiaoshe is generated, the water content is controlled within an expected range (wherein the water content of the fixation tea is controlled to be 45+/-2%), and the bitter and astringent taste of green tea is effectively reduced.
Moreover, the isolation bracket can be used for carrying out up-down separation and insulation and isolation on the circular cylinder bracket used for winding the electromagnetic heating coil so as to prevent vortex from forming in the metal bracket (namely the circular cylinder bracket used for winding the electromagnetic heating coil) which is positioned outside the roller and used for supporting and fixing the electromagnetic heating coil, thus effectively avoiding unnecessary electric energy loss and extra heat dissipation and heat extraction work in the circular cylinder bracket used for winding the electromagnetic heating coil; therefore, the energy consumption is reduced, and the heating work efficiency of the tea processing equipment is improved.
By adopting the technical scheme of the invention, the circular cylinder bracket for winding the electromagnetic heating coil can be arranged in an up-down separated and insulated way, so that vortex is prevented from being formed in the metal bracket (namely the circular cylinder bracket for winding the electromagnetic heating coil) which is positioned outside the roller and used for supporting and fixing the electromagnetic heating coil, and thus unnecessary electric energy loss and extra heat dissipation and heat extraction work are effectively avoided; therefore, the energy consumption is reduced, and the heating work efficiency of the tea processing equipment is improved.
The non-contact temperature sensors are fixedly arranged on the external rack and keep a certain distance from the roller, the influence factors of the tea processing environment are small, the non-contact temperature sensors are sensitive and quick to temperature, the temperature difference variation is small, the structure is simple, the monitoring temperature is accurate, and the energy utilization efficiency is improved. Therefore, the electromagnetic heating and far infrared temperature measurement technology is applied to tea processing machinery, and has important significance for improving the technical level of tea processing machines, realizing energy conservation and emission reduction of tea processing and keeping long-term targets of high quality of products.
It is further noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (8)
1. The novel efficient energy-saving drum-type tea processing equipment is characterized by comprising a drum (10), wherein a heat insulation layer and a heat preservation layer are sequentially wrapped on the outer wall surface of the drum (10) from inside to outside, and a stepped intermittent electromagnetic induction heating system for intermittently heating the drum (10) and an air inlet and moisture removal system for inputting hot air into the drum (10) and discharging moisture are further arranged on the outer side surface of the heat preservation layer on the outer wall surface of the drum (10);
6 to 8 guide blades (60) are mounted on the inner wall surface of the roller (10) at equal intervals, and the guide blades (60) continuously and uninterruptedly extend from a feed inlet (101) of the roller (10) to a discharge outlet (102) of the roller (10); the guide vane plates (60) are of spiral structures, and an included angle of 15-19 degrees is formed between each guide vane plate (60) and the axial direction of the roller (10);
the installation inclination angle regulation and control range of the roller (10) is-5 degrees to +8 degrees, and specifically: when the roller (10) is in a front high and rear low state, an inclination angle of 8 degrees is formed between the axial direction of the roller (10) and the horizontal plane; and forming a maximum 5 DEG inclination angle between the axial direction of the roller (10) and the horizontal plane when the roller (10) is in a front low and rear high state;
the stepped intermittent electromagnetic induction heating system comprises N groups of electromagnetic heating coils, an isolation bracket for winding the electromagnetic heating coils, a temperature sensor for monitoring the temperature in the roller (10) in real time and a temperature controller for managing and controlling the temperature in the roller (10); the temperature sensor is connected with the temperature controller, the temperature sensor transmits the temperature in the roller (10) obtained through real-time monitoring to the temperature controller, and the temperature controller regulates and controls the heating temperature of the electromagnetic heating coil on the roller (10) so that the temperature of tea processed in the roller (10) can be controlled to be a preset temperature value;
In N groups of electromagnetic heating coils, N is a natural number of 3 or 5;
the 1 st group of electromagnetic heating coils and the N th group of electromagnetic heating coils are respectively arranged and wound on isolation brackets at the front end and the rear end of the outer wall surface of the roller (10) in a non-equidistant manner;
the 2 nd group of electromagnetic heating coils, … and the (N-1) group of electromagnetic heating coils are respectively arranged and wound on an isolation bracket near the middle section of the outer wall surface of the roller (10) at equal intervals;
gaps with the interval width of 10 cm-15 cm are arranged between two adjacent groups of electromagnetic heating coils and used as low-temperature buffer belts;
the isolation support comprises an upper semicircular support (11) and a lower semicircular support (12), and the upper semicircular support (11) and the lower semicircular support (12) are connected through an insulating isolation assembly (18) to form a circular cylinder support for winding an electromagnetic heating coil;
the circular cylinder support used for winding the electromagnetic heating coil is arranged in an up-down separated insulation and isolation way, and the eddy current is formed after the electromagnetic heating coil is electrified to generate heat for the closed conductive material forming loop, so that the circular cylinder support used for winding the electromagnetic heating coil is required to be arranged in an insulation and isolation way to avoid unnecessary electric energy loss and extra heat dissipation and heat extraction work, and the eddy current is prevented from being formed;
The outside of each group of electromagnetic heating coils is provided with corresponding temperature sensors which are used for monitoring the temperature in the part of the roller (10) surrounded by the electromagnetic heating coils of the corresponding group;
the temperature sensors are all non-contact temperature sensors, the non-contact temperature sensors are fixedly arranged on the frame, and through holes for monitoring the temperature in the roller (10) by matching with the non-contact temperature sensors are formed in the heat insulation layer and the heat preservation layer which are wrapped on the outer wall surface of the roller (10); the positions of the through holes are in the radial direction corresponding to the installation horizontal plane of the electromagnetic heating coils and are positioned in the middle position of the width of the electromagnetic heating coils in the corresponding group; the installation directions of the non-contact temperature sensors are perpendicular to the wall surface of the roller (10) respectively and are aligned with the center position of the roller (10) along the straight line directions formed by the corresponding through holes;
the air inlet and dehumidification system comprises an air heater (62) for generating and outputting hot air, a hot air pipeline (61) for conveying the hot air into the roller (10), a guide plate (81), a dehumidification cover (80) and a wind shield (84) capable of regulating ascending and descending movements according to requirements;
the wind shield (84) is used for regulating and controlling the effective area of the moisture in the roller (10) for exhausting the moisture and the air outwards along the discharge port (102) of the roller (10); thus realizing the control of the amount of the moisture in the roller (10) discharged along the discharge hole (102) of the roller (10);
The moisture removing cover (80) is fixedly arranged at the discharge port (102) of the roller (10), and the moisture removing cover (80) is used for integrally covering the discharge port (102) of the roller (10);
an inclined included angle is formed between the plane of the guide plate (81) and the plane of the discharge hole (102) of the roller (10), the top end of the guide plate (81) is fixedly arranged in the moisture discharging cover (80), and the bottom end of the guide plate (81) faces the discharge hole (102) of the roller (10), so that the discharge hole (102) of the roller (10) can be divided into an upper part and a lower part, namely an air exhaust moisture discharging outlet and a hot air inlet;
the hot air blower (62) is arranged at the lower end of a discharge hole (102) of the roller (10), the hot air pipeline (61) is communicated with the hot air blower (62), and hot air generated by the hot air blower (62) is conveyed into the roller (10) along the hot air pipeline (61);
the hot air pipeline (61) penetrates into the roller (10) from the hot air inlet, and the output end of the hot air pipeline (61) is close to the feed inlet (101) of the roller (10);
the wind shield (84) is arranged on the part, close to the top end, of the discharge hole (102) of the roller (10), and the plane of the wind shield (84) and the plane of the discharge hole (102) of the roller (10) keep a parallel position relation; the effective area of the wind shield (84) for blocking the discharge port (102) of the roller (10) can be regulated and controlled according to the requirement;
The hot air pipeline (61) is divided into a first section of hot air pipeline (611), a second section of hot air pipeline (612) and a third section of hot air pipeline (613), the first section of hot air pipeline (611) is close to the feeding port (101) of the roller (10), the third section of hot air pipeline (613) is close to the discharging port (102) of the roller (10), and the second section of hot air pipeline (612) is positioned between the first section of hot air pipeline (611) and the third section of hot air pipeline (613); the side surfaces of the first section hot air pipeline (611) and the second section hot air pipeline (612) are respectively provided with a vent hole;
the number of ventilation holes on the side of the first section of hot air duct (611) is greater than the number of ventilation holes on the side of the second section of hot air duct (612).
2. A new and energy efficient drum tea processing plant according to claim 1, characterized in that the radial height of each guide vane (60) is 7 cm-12 cm, the thickness is 5-7mm.
3. A novel efficient energy-saving drum-type tea processing device according to claim 1, wherein upper protruding connecting pieces (111) are respectively arranged at the left and right ends of the upper semicircular bracket (11), and the two upper protruding connecting pieces (111) are integrally formed with the upper semicircular bracket (11); the left end and the right end of the lower semicircular bracket (12) are respectively provided with a lower protruding connecting sheet (121), and the two lower protruding connecting sheets (121) are integrally formed with the lower semicircular bracket (12); the upper semicircular bracket (11) and the lower semicircular bracket (12) are fixedly arranged on two mounting support frames (16) at the inner side of the frame (17); two upper protruding connecting sheets (111) at the left end and the right end of the upper semicircular bracket (11) are respectively in insulating connection with two lower protruding connecting sheets (121) at the left end and the right end of the lower semicircular bracket (12) through corresponding insulating isolation components (18); the insulation isolation assembly (18) comprises two insulation gaskets I (131), a support cushion block (14) and a fastener (15), and the support cushion block (14) is arranged between the two insulation gaskets I (131); two lower protruding connecting sheets (121) on the left end and the right end of the lower semicircular bracket (12) are in insulating connection with two mounting support frames (16) on the inner side of the frame (17); an insulating gasket II (132) is arranged between the two lower protruding connecting sheets (121) and the two mounting support frames (16) positioned on the inner side of the frame (17) respectively; the fastener (15) penetrates through the corresponding upper protruding connecting sheet (111), the insulating gasket I (131), the supporting cushion block (14), the lower protruding connecting sheet (121) and the insulating gasket II (132) from top to bottom in sequence, and the upper protruding connecting sheet (111), the insulating gasket I (131), the supporting cushion block (14), the lower protruding connecting sheet (121) and the insulating gasket II (132) are fixedly arranged on the mounting support frame (16).
4. A new energy efficient drum tea processing device according to claim 3, wherein the fastener (15) is formed by a bolt and nut mating connection.
5. A novel efficient energy-saving drum-type tea processing device according to claim 3, wherein the insulating gasket i (131) and the insulating gasket ii (132) are made of high-temperature-resistant plastic or mica.
6. A novel energy efficient drum tea processing apparatus according to claim 1 wherein the non-contact temperature sensors are spaced from the corresponding through holes by a distance of 10cm to 15cm.
7. The novel efficient energy-saving drum-type tea processing device according to claim 1, wherein an inclined included angle of 30-45 degrees is formed between a plane where the guide plate (81) is located and a plane where a discharge hole (102) of the drum (10) is located, and a radial distance H2 between the bottom end of the guide plate (81) and the bottom end of the discharge hole (102) of the drum (10) is 2/3 of the height D of the upper end and the lower end of the discharge hole (102) of the drum (10), namely H2= (2/3) x D; the radial distance H1 between the bottom end of the guide plate (81) and the top end of the discharge hole (102) of the roller (10) is 1/3 of the height D of the upper end and the lower end of the discharge hole (102) of the roller (10), namely H1= (1/3) x D, and the units are all mm.
8. A novel efficient energy-saving drum-type tea processing device according to claim 1, wherein the axial distance between the bottom end of the guide plate (81) and the discharge port (102) of the drum (10) is 20-30 mm gap.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210106096.4A CN114431308B (en) | 2018-08-02 | 2018-08-02 | Energy-efficient drum-type tea processing device |
| CN201810871099.0A CN108925662B (en) | 2018-08-02 | 2018-08-02 | Novel energy-efficient drum-type tea processing equipment |
| CN202210106090.7A CN114304314A (en) | 2018-08-02 | 2018-08-02 | Drum-type tea processing equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810871099.0A CN108925662B (en) | 2018-08-02 | 2018-08-02 | Novel energy-efficient drum-type tea processing equipment |
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| CN202210106096.4A Division CN114431308B (en) | 2018-08-02 | 2018-08-02 | Energy-efficient drum-type tea processing device |
| CN202210106090.7A Division CN114304314A (en) | 2018-08-02 | 2018-08-02 | Drum-type tea processing equipment |
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| CN108925662A CN108925662A (en) | 2018-12-04 |
| CN108925662B true CN108925662B (en) | 2023-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210106090.7A Withdrawn CN114304314A (en) | 2018-08-02 | 2018-08-02 | Drum-type tea processing equipment |
| CN202210106096.4A Active CN114431308B (en) | 2018-08-02 | 2018-08-02 | Energy-efficient drum-type tea processing device |
| CN201810871099.0A Active CN108925662B (en) | 2018-08-02 | 2018-08-02 | Novel energy-efficient drum-type tea processing equipment |
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| CN202210106090.7A Withdrawn CN114304314A (en) | 2018-08-02 | 2018-08-02 | Drum-type tea processing equipment |
| CN202210106096.4A Active CN114431308B (en) | 2018-08-02 | 2018-08-02 | Energy-efficient drum-type tea processing device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2853373Y (en) * | 2005-12-20 | 2007-01-03 | 西安四维电气有限责任公司 | Electromagnetic induction heating device for plastic, rubber process |
| CN101810227A (en) * | 2010-04-13 | 2010-08-25 | 余姚市姚江源茶叶茶机有限公司 | Heating and temperature detecting method in tea processing |
| CN104186732A (en) * | 2014-09-17 | 2014-12-10 | 余姚市姚江源茶叶茶机有限公司 | Roller drying machine |
| CN108029791A (en) * | 2017-12-15 | 2018-05-15 | 杭州千岛湖丰凯实业有限公司 | Hot air type tea drum fixation machine |
| CN212116907U (en) * | 2018-08-02 | 2020-12-11 | 宁波市姚江源机械有限公司 | Novel energy-efficient drum-type tea processing equipment |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2120436U (en) * | 1992-04-10 | 1992-11-04 | 江苏省国营句东水泥机械厂 | Drum-type fixation machine |
| JP2013034405A (en) * | 2011-08-04 | 2013-02-21 | Terada Seisakusho Co Ltd | Tea leaf hot air parching apparatus |
| CN106819161A (en) * | 2015-12-07 | 2017-06-13 | 湖北天池机械股份公司 | Electromagnetic heating type green-keeping machine |
| CN105786064B (en) * | 2016-05-16 | 2018-12-21 | 贵州大学 | A kind of tea green-keeping automatic control device and fixing method |
| CN206390165U (en) * | 2016-12-13 | 2017-08-11 | 云县刘家坡茶业有限公司 | A kind of hot-air steam roller fixation machine |
-
2018
- 2018-08-02 CN CN202210106090.7A patent/CN114304314A/en not_active Withdrawn
- 2018-08-02 CN CN202210106096.4A patent/CN114431308B/en active Active
- 2018-08-02 CN CN201810871099.0A patent/CN108925662B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2853373Y (en) * | 2005-12-20 | 2007-01-03 | 西安四维电气有限责任公司 | Electromagnetic induction heating device for plastic, rubber process |
| CN101810227A (en) * | 2010-04-13 | 2010-08-25 | 余姚市姚江源茶叶茶机有限公司 | Heating and temperature detecting method in tea processing |
| CN104186732A (en) * | 2014-09-17 | 2014-12-10 | 余姚市姚江源茶叶茶机有限公司 | Roller drying machine |
| CN108029791A (en) * | 2017-12-15 | 2018-05-15 | 杭州千岛湖丰凯实业有限公司 | Hot air type tea drum fixation machine |
| CN212116907U (en) * | 2018-08-02 | 2020-12-11 | 宁波市姚江源机械有限公司 | Novel energy-efficient drum-type tea processing equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114304314A (en) | 2022-04-12 |
| CN114431308B (en) | 2023-10-20 |
| CN108925662A (en) | 2018-12-04 |
| CN114431308A (en) | 2022-05-06 |
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