CN111838350A - Double-heat-supply type tea leaf fixation and carding machine - Google Patents
Double-heat-supply type tea leaf fixation and carding machine Download PDFInfo
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- CN111838350A CN111838350A CN202010879695.0A CN202010879695A CN111838350A CN 111838350 A CN111838350 A CN 111838350A CN 202010879695 A CN202010879695 A CN 202010879695A CN 111838350 A CN111838350 A CN 111838350A
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- 241001122767 Theaceae Species 0.000 title claims abstract description 50
- 238000009960 carding Methods 0.000 title claims abstract description 17
- 238000002485 combustion reaction Methods 0.000 claims abstract description 59
- 238000010415 tidying Methods 0.000 claims abstract description 25
- 238000009413 insulation Methods 0.000 claims abstract description 13
- 239000002918 waste heat Substances 0.000 claims abstract description 13
- 239000000779 smoke Substances 0.000 claims description 34
- 239000000446 fuel Substances 0.000 claims description 12
- 238000009529 body temperature measurement Methods 0.000 claims description 6
- 230000008676 import Effects 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 102000004190 Enzymes Human genes 0.000 abstract description 11
- 108090000790 Enzymes Proteins 0.000 abstract description 11
- 239000003245 coal Substances 0.000 abstract description 9
- 230000009849 deactivation Effects 0.000 abstract description 7
- 230000005611 electricity Effects 0.000 abstract description 5
- 230000009286 beneficial effect Effects 0.000 abstract description 4
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000000295 complement effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 12
- 238000004519 manufacturing process Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000003546 flue gas Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- QDOXWKRWXJOMAK-UHFFFAOYSA-N dichromium trioxide Chemical compound O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- -1 firewood Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
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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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H3/00—Air heaters
- F24H3/02—Air heaters with forced circulation
- F24H3/022—Air heaters with forced circulation using electric energy supply
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1818—Arrangement or mounting of electric heating means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Apparatus Associated With Microorganisms And Enzymes (AREA)
Abstract
The invention discloses a double-heat-supply type tea leaf enzyme deactivating and carding machine which comprises a machine frame, a U-shaped groove pot group, a hot air box, a hot air cover, a first combustion chamber, a second combustion chamber, a first heat supply pipeline, a second heat supply pipeline, an air inlet, a first air blower, a second air blower, a first electromagnetic valve and a second electromagnetic valve, wherein the bottom of the hot air box is respectively connected with a plurality of air nozzles, the tops of the first combustion chamber and the second combustion chamber are respectively and fixedly connected with a heat conduction plate, two sides of the machine frame are respectively and fixedly provided with a heat insulation plate, a heat conduction cavity is formed, a first temperature measuring element and a second temperature measuring element are respectively arranged in the heat conduction cavity, and the first temperature measuring element and the second temperature. The invention adopts a firewood/coal and electricity mixed double-heating mode, can form complementary advantages, meets the temperature conditions required by tea enzyme deactivation and strip tidying, improves the heat utilization rate, realizes automatic temperature control and waste heat utilization, is beneficial to reducing the cost, saving the resources and ensuring the quality of the tea.
Description
Technical Field
The invention relates to the technical field of tea production and processing equipment, in particular to a double-heat-supply type tea de-enzyming and carding machine.
Background
In the field of tea production and processing, water removing and strip tidying are one of important production and processing procedures and are key procedures for determining the quality of tea, such as shape, color, aroma, taste and the like, so that various types of water removing and strip tidying equipment are produced, the heat supply modes of the equipment are usually independent, namely various heat sources (a hot blast stove, a hot blast generator and the like) capable of providing different air temperatures are configured according to the technological requirements of water removing and strip tidying, the temperature control error is large, the operation is inconvenient, the connection of various tea making technologies is solved, the labor cost is reduced, the production efficiency is improved, and the quality of the tea, such as the shape, the color, the aroma, the taste and the like is not substantially improved.
In order to solve the problems, the water-removing and carding machine is suitable for transportation, integrates the functions of heat collection, water removal and carding, can improve the stability of the tea quality, reduce the occupied space, reduce the production cost and improve the economic benefit. The heating device adopts a heating mode of heating by using firewood, coal and the like as fuels to provide hot air or adopts a heating mode of providing hot air by electric heating. Wherein, the cost of fuels such as firewood, coal and the like is lower, but the fuels belong to non-renewable resources; the cost of electricity is relatively high, and the electricity is easily influenced by the power supply capacity of different regions, particularly the mountainous area where tea is planted and processed. Therefore, the adoption of a single heat supply mode is not beneficial to reducing the cost, saving the resources, maintaining the continuity, the stability and the like of the production and processing process.
In addition, the water-removing section of the tank pan generally adopts a hot air cover which is reversely buckled above the water-removing section, and hot air is blown into the tank pan from the hot air cover, so that heat is transferred to the tank pan. In order to reduce heat loss, the hot air hood should have a close enough distance from the tank pan, even need to be tightly attached to the upper surface of the tank pan, and the fresh tea leaves usually contain certain moisture, so that after entering the de-enzyming section of the tank pan, the moisture is difficult to effectively volatilize in a limited and narrow space, thereby affecting the quality of the tea leaves such as shape (strip shape) and color.
In addition, the heating mode of heating by taking firewood, coal and the like as fuels to provide hot air is adopted, the adopted heating equipment is a combustion furnace with a certain interval with the groove pot is arranged below the groove pot, and high temperature generated when the fuel such as the firewood, the coal and the like is combusted is transferred into the groove pot in a heat conduction mode so as to meet the temperature condition required by enzyme deactivation. However, in the process of heating the groove pot, the groove pot also needs to do transverse reciprocating motion on the rack along with the pot rack, and during the motion, "disturbance airflow" is generated below the groove pot, so that part of heat is discharged from the side edge of the groove pot along with the airflow, the temperature is difficult to be effectively controlled, and the heat utilization rate is greatly reduced.
Disclosure of Invention
The invention aims to overcome the defects and shortcomings of the prior art and provide a double-heat-supply type tea leaf de-enzyming and tea-strip tidying machine, which adopts a firewood/coal and electricity mixed double-heat-supply mode to form advantage complementation so as to meet the temperature conditions required by tea leaf de-enzyming and tea-strip tidying, improve the heat utilization rate, realize automatic temperature control and waste heat utilization, and be beneficial to reducing the cost, saving the resources and keeping the continuity and stability of the production and processing process so as to ensure the quality of tea leaves.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a two heat supply formula tealeaves reason strip machine that completes, including the frame, can follow the width direction of frame and make reciprocating motion's pot frame and the U-shaped groove pot group on it, preceding, the rear end of pot frame are in the below of U-shaped groove pot group is fixedly connected with baffle respectively, the anterior segment of U-shaped groove pot group is for completing section, back end and is reason strip section, its characterized in that: a hot air box and a first combustion chamber are respectively and correspondingly fixed above and below the green removing section on the machine frame, the hot air box is connected with a first heat supply pipeline, and the bottom of the hot air box is respectively connected with a plurality of air nozzles which are communicated with the interior of the hot air box, obliquely arranged and oriented to the U-shaped groove pot group;
a hot air cover and a second combustion chamber are correspondingly fixed above and below the strip tidying section on the rack respectively, the hot air cover is connected with a second heat supply pipeline, the tops of the first combustion chamber and the second combustion chamber are fixedly connected with heat conduction plates respectively, heat insulation plates with two high ends and a low middle part are fixed on two sides of the rack respectively along the length direction of the U-shaped groove pot group, heat conduction cavities are formed among the bottom of the U-shaped groove pot group, the heat conduction plates, the heat insulation plates and the baffle plates, and a first temperature measurement element and a second temperature measurement element which correspond to the green removing section and the strip tidying section are arranged in the heat conduction cavities respectively;
the combustion chamber comprises a first combustion chamber, a second combustion chamber and a controller, wherein one side of the bottom of the first combustion chamber and one side of the bottom of the second combustion chamber are respectively provided with an air inlet, the first combustion chamber and the second combustion chamber are respectively and correspondingly connected with a first air blower and a second air blower, the air inlets are respectively and correspondingly provided with a first electromagnetic valve and a second electromagnetic valve, the controller is respectively and electrically connected with the first temperature measuring element and the second temperature measuring element on one hand, and is respectively and electrically connected with the first air blower, the second air blower, the first electromagnetic valve and the second electromagnetic valve on.
Furthermore, first heat supply pipeline be connected with hot-blast generator, hot-blast generator including third air-blower and electric heater, one side fixed mounting of frame have the support, the third air-blower install on the support, the butterfly valve is installed to the entrance point of third air-blower, the exit end of third air-blower with electric heater's entrance point is connected, electric heater's exit end with first heat supply pipeline be connected.
Furthermore, the included angle of a plurality of tuyere and vertical direction be 0 ~ 25, and with the incline direction and the inclination of U-shaped groove pot group are all unanimous, the lower extreme of a plurality of tuyere corresponds respectively and extends to in each groove pot of U-shaped groove pot group.
Furthermore, the other sides of the bottoms of the first combustion chamber and the second combustion chamber are respectively provided with a fuel inlet and are respectively provided with a furnace door.
Furthermore, one side of the rack is fixedly connected with a smoke collection box which is communicated with the top of the first combustion chamber and the top of the second combustion chamber, the smoke collection box and the furnace door are positioned at the same side, the top of the smoke collection box is connected with a smoke exhaust pipeline which is communicated with the inside of the smoke collection box, and the outer wall of the smoke exhaust pipeline is fixedly connected with a plurality of radiating fins which are arranged along the length direction of the smoke exhaust pipeline.
Furthermore, the second heat supply pipeline be connected with waste heat utilization equipment, waste heat utilization equipment including the cover the outside outer tube of exhaust pipe, the both ends of outer tube are all sealed, and the both sides of outer tube bottom are equipped with rather than inside all communicating cold wind import and hot air outlet respectively, cold wind import be connected with the fourth air-blower, hot air outlet be connected with the thermal-collecting tube, the thermal-collecting tube transversely pass extend behind the inside of smoke collecting box and stretch out, and with second heat supply pipeline is connected.
Furthermore, the cold air inlet is communicated with the inside of the outer sleeve along the tangential direction of the excircle of the outer sleeve.
Furthermore, the hot air outlet is gradually contracted from one end communicated with the interior of the outer sleeve to the other end of the outer sleeve.
Furthermore, a protective net is fixedly arranged on the outer side of the first air blower and the outer side of the second air blower on the frame.
Furthermore, a first relay and a first frequency converter are respectively installed in a power supply loop of the first air blower, a second relay and a second frequency converter are respectively installed in a power supply loop of the second air blower, and the controller is respectively electrically connected with the first relay, the second relay, the first frequency converter and the second frequency converter.
Compared with the prior art, the invention has the beneficial effects that:
1. aiming at the processes of enzyme deactivation and strip tidying, the hot air box and the first combustion chamber are respectively and correspondingly fixed above and below the enzyme deactivation section, and the hot air cover and the second combustion chamber are respectively and correspondingly fixed above and below the strip tidying section, namely, a diesel/coal and electricity mixed double-heating mode is adopted, so that the advantages are complementary, the temperature conditions required by the enzyme deactivation and the strip tidying of the tea can be met, the cost is reduced, the resources are saved, and the continuity and the stability of the production and processing process are kept.
2. According to the invention, the bottom of the hot air box is connected with the plurality of air nozzles which are communicated with the interior of the hot air box, obliquely arranged and face the groove pot, so that on one hand, a reasonable distance can be kept between the hot air box and the groove pot, and the rapid volatilization of water in fresh tea leaves is facilitated, thereby ensuring the quality of the tea leaves such as shape (strip shape), color and the like; on the other hand, hot air can be uniformly diffused into the groove pot, excessive heat loss is avoided, and the temperature of the water-removing section can quickly reach the required temperature condition (high temperature).
3. The heat insulation plates with high two ends and low middle part are respectively fixed on the two sides of the rack along the length direction of the groove pot group, so that a relatively sealed heat conduction cavity is formed among the bottom of the groove pot group, the heat conduction plate, the heat insulation plates and the baffle plates, and when the groove pot reciprocates along the width direction of the rack along with the pot rack, the heat cannot be leaked along with the generated disturbance airflow; in addition, when the middle part of the heat insulation plate with high two ends and low middle part is bent downwards due to heating of the groove pot, the heat insulation plate can form a reliable matching relation with the pot bottom, thereby further preventing heat from leaking and ensuring that the heat utilization rate can reach more than 90%.
4. The automatic temperature control system is formed by adopting the first temperature measuring element, the second temperature measuring element, the controller, the first air blower, the second air blower, the first electromagnetic valve and the second electromagnetic valve, realizes automatic and accurate temperature control, and ensures that the temperatures of the water-removing section and the strip tidying section can be controlled within the error range of +/-10 ℃, thereby ensuring the quality of tea.
5. The heat in the flue gas discharged by the first combustion chamber and the second combustion chamber is recycled and is subjected to secondary heat exchange to be used as a heat source of the strip tidying section, so that the temperature condition (low temperature) required by the strip tidying section can be met, the waste heat utilization is realized, the cost is reduced, and the resources are saved.
Drawings
Fig. 1 is a first schematic structural diagram according to a first embodiment of the present invention.
Fig. 2 is an enlarged view of a portion a of fig. 1.
Fig. 3 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 4 is a third schematic structural diagram according to the first embodiment of the present invention.
Fig. 5 is a fourth schematic structural diagram according to the first embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a pot rack, a U-shaped groove pot group, a heat conducting plate, a heat insulating plate and a baffle plate in the first embodiment of the invention.
Fig. 7 is a schematic structural view of a U-shaped groove pan set in an inverted state according to an embodiment of the present invention.
FIG. 8 is a schematic view of an embodiment of a thermal insulation panel according to the present invention.
FIG. 9 is a schematic view of the outer structure of the smoke exhaust duct and the outer sleeve according to the first embodiment of the present invention.
FIG. 10 is a schematic view of the inner structure of the smoke exhaust duct and the outer sleeve according to the first embodiment of the present invention.
Fig. 11 is an electrical control schematic block diagram according to a first embodiment of the present invention.
Fig. 12 is a schematic structural diagram of a second embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-11, a double-heat-supply type tea leaf enzyme deactivating and carding machine comprises a rack 1, a pot frame 2 capable of reciprocating along the width direction of the rack 1 and a U-shaped groove pot group 3 arranged on the pot frame 2, wherein the front end and the rear end of the pot frame 2 are respectively and fixedly connected with a baffle 201 below the U-shaped groove pot group 3, the front section of the U-shaped groove pot group 3 is an enzyme deactivating section 301, the rear section of the U-shaped groove pot group 3 is a carding section 302, a hot air box 4 and a first combustion chamber 5 are respectively and correspondingly fixed above and below the enzyme deactivating section 301 on the rack 1, the hot air box 4 is connected with a first heat supply pipeline 6, and the bottom of the hot air box 4 is respectively connected with a plurality of air nozzles 7 which are communicated with the interior of the hot air box 4, are obliquely arranged and face;
a hot air cover 8 and a second combustion chamber 9 are respectively and correspondingly fixed above and below the strip section 302 on the rack 1, the hot air cover 8 is connected with a second heat supply pipeline 10, the tops of the first combustion chamber 5 and the second combustion chamber 9 are respectively and fixedly connected with heat conduction plates 11, heat insulation plates 12 with two high ends and a low middle part are respectively fixed on two sides of the rack 1 along the length direction of the U-shaped groove pot group 3, heat conduction chambers are formed among the bottom of the U-shaped groove pot group 3, the heat conduction plates 11, the heat insulation plates 12 and the baffle plates 201, and a first temperature measurement element 13 and a second temperature measurement element 14 which correspond to the green removing section 301 and the strip arranging section 302 are respectively arranged in the heat conduction chambers;
one side of the bottom of the first combustion chamber 5 and one side of the bottom of the second combustion chamber 9 are respectively provided with an air inlet, the air inlets are respectively and correspondingly connected with a first air blower 15 and a second air blower 16, the air inlets are respectively and correspondingly provided with a first electromagnetic valve 17 and a second electromagnetic valve 18, the temperature measuring device further comprises a controller 19, and the controller 19 is respectively and electrically connected with the first temperature measuring element 13 and the second temperature measuring element 14 on one hand, and is respectively and electrically connected with the first air blower 15, the second air blower 16, the first electromagnetic valve 17 and the second electromagnetic valve 18 on the other hand.
In this embodiment, the first heat supply pipeline 6 is connected to a hot air generator 20, the hot air generator 20 includes a third blower 2001 and an electric heater 2002, a bracket 21 is fixedly installed at one side of the rack 1, the third blower 2001 is installed on the bracket 21, a butterfly valve 22 is installed at an inlet end of the third blower 2001, an outlet end of the third blower 2001 is connected to an inlet end of the electric heater 2002, and an outlet end of the electric heater 2002 is connected to the first heat supply pipeline 6.
It should be noted that the air intake of the third blower 2001 can be adjusted by manually adjusting the opening of the butterfly valve 22, so as to adjust the air intake into the first heat supply pipeline 6 and the hot air box 4.
The included angle between the plurality of air nozzles 7 and the vertical direction is 0-25 degrees, the included angle is consistent with the inclined direction and the inclined angle of the U-shaped groove pot group 3, and the lower ends of the plurality of air nozzles 7 correspondingly extend into the groove pots of the U-shaped groove pot group 3 respectively.
The included angles between the plurality of air nozzles 7 and the vertical direction are all 0-25 degrees, and are consistent with the inclined direction and the inclined angle of the U-shaped groove pot group 3, so that the quality of the tea leaves such as shape (strip shape), color and the like can be further ensured; the lower ends of the air nozzles 7 respectively and correspondingly extend into the groove pots of the U-shaped groove pot group 3, so that the heat loss can be avoided to the maximum extent.
The other sides of the bottoms of the first combustion chamber 5 and the second combustion chamber 9 are respectively provided with a fuel inlet and are respectively provided with a furnace door 23.
One side of the frame 1 is fixedly connected with a smoke collection box 24 which is communicated with the inner tops of the first combustion chamber 5 and the second combustion chamber 9, the smoke collection box 24 and the furnace door 23 are positioned at the same side, the top of the smoke collection box 24 is connected with a smoke exhaust pipeline 25 which is communicated with the inner part of the smoke collection box, and the outer wall of the smoke exhaust pipeline 25 is fixedly connected with a plurality of radiating fins 26 which are arranged along the length direction of the smoke exhaust pipeline 25.
It should be noted that, by providing the plurality of cooling fins 26, the dissipation of the waste heat discharged along with the flue gas can be accelerated, so that the waste heat can be fully utilized to the greatest extent.
The second heat supply pipeline 10 is connected with a waste heat utilization device 27, the waste heat utilization device 27 comprises an outer sleeve 2701 sleeved outside the smoke exhaust pipeline 25, two ends of the outer sleeve 2701 are sealed, two sides of the bottom of the outer sleeve 2701 are respectively provided with a cold air inlet 2702 and a hot air outlet 2703 which are communicated with the inside of the outer sleeve 2701, the cold air inlet 2702 is connected with a fourth air blower 2704, the hot air outlet 2703 is connected with a heat collection pipe 2705, and the heat collection pipe 2705 transversely penetrates through the inside of the smoke collection box 24 and then extends out and is connected with the second heat supply pipeline 10.
The cold air inlet 2702 is communicated with the inside of the outer sleeve 2701 along the tangential direction of the outer circle of the outer sleeve 2701.
It should be noted that the cold air blown by the fourth air blower 2704 can enter the outer sleeve 2701 through the cold air inlet 2702 in the tangential direction, can flow in an annular track, and can perform sufficient heat exchange with the waste heat dissipated through the outer wall of the smoke exhaust duct 25 and the plurality of heat dissipation fins 26.
The hot air outlet 2703 is gradually contracted from one end communicating with the inside of the outer tube 2701 to the other end thereof.
It should be noted that the hot air formed after heat exchange can be collected by the large opening end of the hot air outlet 2703, and can be gradually concentrated in the process of flowing from the inside of the hot air outlet 2703 to the small opening end thereof, so that the heat loss can be reduced to the maximum extent.
A protective net 28 is fixedly mounted on the outer side of the first blower and the second blower of the frame 1.
It should be noted that the protective net 28 can isolate and protect the first blower 15, the second blower 16, corresponding electronic components, circuit wiring, and a motor, a transmission mechanism, etc. driving the pan frame 2 and the U-shaped groove pan group 3 to reciprocate from the outside, thereby ensuring safe production.
A first relay 29 and a first frequency converter 30 are respectively installed in a power supply circuit of the first blower 15, a second relay 31 and a second frequency converter 32 are respectively installed in a power supply circuit of the second blower 16, and the controller 19 is electrically connected with the first relay 29, the second relay 31, the first frequency converter 30 and the second frequency converter 32.
This embodiment is further described below in conjunction with FIGS. 1-11:
in this example, the first temperature measuring element 13 and the second temperature measuring element 14 both adopt thermocouples, the controller 19 adopts a PLC, and the controller 19 stores an upper limit temperature threshold and a lower limit temperature threshold required for tea leaf fixation and strip tidying respectively, which can be specifically set according to actual production and processing requirements, and are not limited herein.
And starting the whole equipment to work. When the tea leaves are enzyme-deactivating, the fresh tea leaves are thrown into the enzyme-deactivating section 301 of the U-shaped groove pot group 3, the pot frame 2 and the U-shaped groove pot group 3 on the pot frame do reciprocating motion along the width direction of the rack 1, the third air blower 2001 and the electric heater 2002 respectively work, formed hot air enters the hot air box 4 through the first heat supply pipeline 6 and then enters the enzyme-deactivating section 301 of the U-shaped groove pot group 3 through the plurality of air nozzles 7, the tea leaves are enzyme-deactivated and heat supplied from the upper side, and moisture contained in the fresh tea leaves can be volatilized rapidly. Meanwhile, heat generated when fuel such as firewood or coal is combusted in the first combustion chamber 5 is transmitted to the green removing section 301 of the U-shaped groove pot group 3 through the heat conducting plate 11 and the heat conducting cavity in sequence, and tea leaves are subjected to green removing and heat supplying from the lower part.
Because the U-shaped groove pot group 3 inclines from the fixation section 301 to the strip tidying section 302, the tea leaves after fixation can naturally transit to the strip tidying section 302 under the action of the vibration force and the gravity generated when the U-shaped groove pot group 3 reciprocates.
When the tea leaves are arranged, the tea leaves enter the strip arranging section 302 of the U-shaped groove pot group 3, at the moment, the pot frame 2 and the U-shaped groove pot group 3 on the pot frame reciprocate along the width direction of the rack 1, heat generated when fuel such as firewood or coal is combusted in the second combustion chamber 9 is transmitted to the green removing section 302 of the U-shaped groove pot group 3 through the heat conducting plate 11 and the heat conducting chamber in sequence, and heat is supplied for tea leaf green removing from the lower part. Meanwhile, the flue gas generated by the fuel in the first combustion chamber 5 and the second combustion chamber 9 enters the smoke collection box 24 and is discharged out of the smoke discharge pipeline 25; in the process, cold air (having the same temperature as the external environment) blown by the fourth air blower 2704 enters the outer sleeve 2701 through the cold air inlet 2702, flows in an annular track, and performs primary heat exchange with waste heat dissipated by the outer wall of the smoke exhaust pipeline 25 and the plurality of radiating fins 26, hot air formed after heat exchange enters the heat collecting pipe 2705 through the hot air outlet 2703, transversely flows through the smoke collecting box 24 along the inside of the heat collecting pipe 2705, performs secondary heat exchange with smoke in the smoke collecting box 24, and hot air after heat exchange enters the hot air hood 8 through the second heat supply pipeline 10 and finally diffuses to the strip tidying section 302 of the U-shaped groove boiler group 3 to supply heat for tea strip tidying from the upper part.
In the process of enzyme deactivation and strip arrangement, the U-shaped groove pot group 3 is bent and deformed downwards at the middle part due to heating, and the heat insulation plates 12 with high two ends and low middle part just can form a reliable matching relation with the pot bottom, so that heat is further prevented from leaking.
In the process of water removing and strip tidying, the first temperature measuring element 13 and the second temperature measuring element 14 respectively and correspondingly detect the real-time temperature of the water removing section 301 and the strip tidying section 302, and send the detected temperature data to the controller 19, the controller 19 sends control instructions to the first relay 29, the first frequency converter 30, the second relay 31 and the second frequency converter 32 in real time according to the set upper limit temperature threshold and the set lower limit temperature threshold, so that the opening and closing of the first air blower 15 and the second air blower 16 are controlled in real time, the blowing amount of the first air blower 15 and the second air blower 16 is adjusted, and the oxygen content in the first combustion chamber 5 and the second combustion chamber 9 is controlled; in addition, control instructions are sent to the first electromagnetic valve 17 and the second electromagnetic valve 18 in real time to control the opening and closing of the corresponding air inlets, so that automatic and accurate temperature control is realized, and the temperatures of the water-removing section 301 and the strip tidying section 302 can be controlled within the error range of +/-10 ℃.
Taking the temperature control of tea fixation as an example, the method specifically comprises the following steps: the upper temperature threshold and the lower temperature threshold stored in the controller 19 are 350 ℃ and 250 ℃ respectively, which are required by tea fixation. The first temperature measuring element 13 detects the real-time temperature of the water-removing section 301, and sends the detected temperature data to the controller 19, when the real-time temperature value is lower than the set lower limit temperature threshold (250 ℃), the controller 19 sends a control instruction (level signal) to the first frequency converter 30, the first frequency converter 30 increases the motor rotating speed of the first air blower 15, so that the first air blower 15 runs at a high speed, the blast volume of the first air blower 15 is increased, the oxygen content in the first combustion chamber 5 is increased, the combustion is accelerated, and the temperature rise rate is accelerated; when the real-time temperature value reaches the set lower limit temperature threshold (250 ℃), the controller 19 sends a control instruction (level signal) to the first frequency converter 30, and the first frequency converter 30 properly reduces the motor rotation speed of the first air blower 15 compared with the previous rotation speed so that the first air blower runs at a low speed or a medium speed, and properly reduces the air blowing amount of the first air blower 15, thereby properly reducing the oxygen content in the first combustion chamber 5, properly slowing down combustion, and properly slowing down the temperature rise rate; when the real-time temperature value reaches the set upper limit temperature threshold (350 ℃), the controller 19 respectively sends control instructions (level signals) to the first electromagnetic valve 17 and the first relay 29, the first electromagnetic valve 17 is closed, the first relay 29 is disconnected, the corresponding air inlet is closed, and the first air blower 15 stops working. Therefore, automatic temperature control is realized, and the aim of saving resources is fulfilled.
It should be noted that, because the heat transfer process is from the heat conducting plate 11 to the enzyme deactivation section 301 through the heat conducting chamber, there is inevitable heat loss, and therefore, there is an error in temperature, but this embodiment can control the temperature error range within an error range of ± 10 ℃, and the accuracy is high.
The temperature control principle and process of the tea strip tidying are the same, and are not described in detail herein.
Example two
Referring to fig. 12, the difference between the present embodiment and the first embodiment is that the hot air generator in the first embodiment is replaced by a hot air furnace 33, the hot air furnace 33 is used to supply heat to the hot air box 4, the first heat supply pipeline 6 is connected to the hot air furnace 33 through a pipeline 34, and other parts and corresponding structures and implementation processes are the same as those in the first embodiment, and are not described herein again.
Although the present description is described in terms of embodiments, not every embodiment includes only a single embodiment, and such description is for clarity only, and those skilled in the art should be able to integrate the description as a whole, and the embodiments can be appropriately combined to form other embodiments as will be understood by those skilled in the art.
Therefore, the above description is only a preferred embodiment of the present application, and is not intended to limit the scope of the present application; all changes which come within the meaning and range of equivalency of the claims are to be embraced within their scope.
Claims (10)
1. The utility model provides a two heat supply formula tealeaves reason strip machine that completes, including the frame, can follow the width direction of frame and make reciprocating motion's pot frame and the U-shaped groove pot group on it, preceding, the rear end of pot frame are in the below of U-shaped groove pot group is fixedly connected with baffle respectively, the anterior segment of U-shaped groove pot group is for completing section, back end and is reason strip section, its characterized in that: a hot air box and a first combustion chamber are respectively and correspondingly fixed above and below the green removing section on the machine frame, the hot air box is connected with a first heat supply pipeline, and the bottom of the hot air box is respectively connected with a plurality of air nozzles which are communicated with the interior of the hot air box, obliquely arranged and oriented to the U-shaped groove pot group;
a hot air cover and a second combustion chamber are correspondingly fixed above and below the strip tidying section on the rack respectively, the hot air cover is connected with a second heat supply pipeline, the tops of the first combustion chamber and the second combustion chamber are fixedly connected with heat conduction plates respectively, heat insulation plates with two high ends and a low middle part are fixed on two sides of the rack respectively along the length direction of the U-shaped groove pot group, heat conduction cavities are formed among the bottom of the U-shaped groove pot group, the heat conduction plates, the heat insulation plates and the baffle plates, and a first temperature measurement element and a second temperature measurement element which correspond to the green removing section and the strip tidying section are arranged in the heat conduction cavities respectively;
the combustion chamber comprises a first combustion chamber, a second combustion chamber and a controller, wherein one side of the bottom of the first combustion chamber and one side of the bottom of the second combustion chamber are respectively provided with an air inlet, the first combustion chamber and the second combustion chamber are respectively and correspondingly connected with a first air blower and a second air blower, the air inlets are respectively and correspondingly provided with a first electromagnetic valve and a second electromagnetic valve, the controller is respectively and electrically connected with the first temperature measuring element and the second temperature measuring element on one hand, and is respectively and electrically connected with the first air blower, the second air blower, the first electromagnetic valve and the second electromagnetic valve on.
2. The double-heat-supply type tea de-enzyming and carding machine according to claim 1, is characterized in that: the first heat supply pipeline be connected with hot-blast generator, hot-blast generator including third air-blower and electric heater, one side fixed mounting of frame has the support, the third air-blower install on the support, the butterfly valve is installed to the entrance point of third air-blower, the exit end of third air-blower with electric heater's entrance point is connected, electric heater's exit end with first heat supply pipeline be connected.
3. The double-heat-supply type tea de-enzyming and carding machine according to claim 1, is characterized in that: the included angle of a plurality of tuyere and vertical direction be 0 ~ 25, and with the incline direction and the inclination of U-shaped groove pot group are all unanimous, the lower extreme of a plurality of tuyere corresponds respectively and extends to in each groove pot of U-shaped groove pot group.
4. The double-heat-supply type tea de-enzyming and carding machine according to claim 1, is characterized in that: and fuel inlets are respectively arranged on the other sides of the bottoms of the first combustion chamber and the second combustion chamber, and furnace doors are respectively installed on the fuel inlets.
5. The double-heat-supply type tea de-enzyming and carding machine according to claim 4, characterized in that: one side of the rack is fixedly connected with a smoke collection box which is communicated with the top parts in the first combustion chamber and the second combustion chamber, the smoke collection box and the furnace door are positioned at the same side, the top part of the smoke collection box is connected with a smoke exhaust pipeline which is communicated with the inside of the smoke collection box, and a plurality of radiating fins which are arranged along the length direction of the smoke exhaust pipeline are fixedly connected to the outer wall of the smoke exhaust pipeline respectively.
6. The double-heat-supply type tea de-enzyming and tea carding machine according to claim 5, is characterized in that: the second heat supply pipeline be connected with the waste heat utilization equipment, the waste heat utilization equipment including the cover the outside outer tube of exhaust pipe, the both ends of outer tube are all sealed, the both sides of outer tube bottom are equipped with respectively rather than inside communicating cold wind import and hot air outlet, cold wind import be connected with the fourth air-blower, hot air outlet be connected with the thermal-collecting tube, the thermal-collecting tube transversely pass extend behind the inside of smoke collecting box and stretch out, and with the second heat supply pipeline is connected.
7. The double-heat-supply type tea de-enzyming and tea carding machine according to claim 6, is characterized in that: the cold air inlet is communicated with the inside of the outer sleeve along the tangential direction of the excircle of the outer sleeve.
8. The double-heat-supply type tea de-enzyming and tea carding machine according to claim 6, is characterized in that: the hot air outlet is gradually contracted from one end communicated with the interior of the outer sleeve to the other end thereof.
9. The double-heat-supply type tea de-enzyming and carding machine according to claim 1, is characterized in that: and a protective net is fixedly arranged on the frame at the outer sides of the first air blower and the second air blower.
10. The double-heat-supply type tea de-enzyming and carding machine according to claim 1, is characterized in that: the power supply circuit of the first air blower is provided with a first relay and a first frequency converter, the power supply circuit of the second air blower is provided with a second relay and a second frequency converter, and the controller is electrically connected with the first relay, the second relay, the first frequency converter and the second frequency converter.
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| CN202010879695.0A CN111838350A (en) | 2020-08-27 | 2020-08-27 | Double-heat-supply type tea leaf fixation and carding machine |
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| CN202010879695.0A CN111838350A (en) | 2020-08-27 | 2020-08-27 | Double-heat-supply type tea leaf fixation and carding machine |
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Cited By (1)
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