CN116428835B - Use process of tube bundle dryer - Google Patents
Use process of tube bundle dryer Download PDFInfo
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- CN116428835B CN116428835B CN202310546053.2A CN202310546053A CN116428835B CN 116428835 B CN116428835 B CN 116428835B CN 202310546053 A CN202310546053 A CN 202310546053A CN 116428835 B CN116428835 B CN 116428835B
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000001035 drying Methods 0.000 claims abstract description 126
- 238000011084 recovery Methods 0.000 claims abstract description 72
- 238000007790 scraping Methods 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 12
- 239000000463 material Substances 0.000 claims description 76
- 238000001704 evaporation Methods 0.000 claims description 57
- 230000008020 evaporation Effects 0.000 claims description 56
- 239000007788 liquid Substances 0.000 claims description 51
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 238000002386 leaching Methods 0.000 claims description 28
- 239000004065 semiconductor Substances 0.000 claims description 27
- 238000005057 refrigeration Methods 0.000 claims description 24
- 238000003860 storage Methods 0.000 claims description 20
- 230000017525 heat dissipation Effects 0.000 claims description 18
- 239000000110 cooling liquid Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 8
- 230000001502 supplementing effect Effects 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
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- 238000004804 winding Methods 0.000 claims description 3
- 238000000889 atomisation Methods 0.000 claims 1
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- 238000005265 energy consumption Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 description 9
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B11/00—Machines or apparatus for drying solid materials or objects with movement which is non-progressive
- F26B11/12—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices
- F26B11/16—Machines or apparatus for drying solid materials or objects with movement which is non-progressive in stationary drums or other mainly-closed receptacles with moving stirring devices the stirring device moving in a vertical or steeply-inclined plane
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B21/00—Machines, plants or systems, using electric or magnetic effects
- F25B21/02—Machines, plants or systems, using electric or magnetic effects using Peltier effect; using Nernst-Ettinghausen effect
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/10—Heating arrangements using tubes or passages containing heated fluids, e.g. acting as radiative elements; Closed-loop systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/04—Agitating, stirring, or scraping devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/06—Chambers, containers, or receptacles
- F26B25/08—Parts thereof
- F26B25/12—Walls or sides; Doors
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention relates to the technical field of grain machinery, in particular to a use process of a tube bundle dryer; the invention comprises a tube bundle dryer, a swinging assembly, a driving assembly, a thermodynamic assembly and a recovery assembly, wherein the tube bundle dryer comprises a horizontal housing, a hollow rotating shaft, drying pipes, hollow discs and scraping plates, the horizontal housing is fixedly arranged on a bottom plate, a cylindrical drying cavity is arranged in the horizontal housing, the two ends of the horizontal housing are coaxially and dynamically connected with the hollow rotating shaft in a sealing manner, the hollow discs are coaxially arranged at the end parts of the hollow rotating shaft in the drying cavity, the two hollow discs are connected through a group of uniformly distributed drying pipes, and the outer side walls of the two hollow discs are also connected through a group of uniformly distributed scraping plates; the invention can effectively solve the problems of high energy consumption, poor drying effect and the like in the prior art.
Description
Technical Field
The invention relates to the technical field of grain machinery, in particular to a low-energy-consumption tube bundle dryer and a using method thereof.
Background
The tube bundle dryer comprises a horizontal cylindrical shell, wherein the shell is formed by surrounding an upper half and a lower half, a tube bundle rotor is arranged in an inner cavity of the shell, sealing heads are respectively arranged at two ends of the tube bundle rotor, rotor shafts are respectively arranged at the centers of the sealing heads, the rotor shafts drive the tube bundle rotor to rotate under the drive of a driving device, materials are added into the shell from one end of the shell and fall on the rotating tube bundle, are indirectly heated by a thermal medium in the tube bundle, are dried by removing moisture through hot air convection, are saturated by water vapor, are discharged from an exhaust port at the top of the shell and are pumped away by an exhaust fan; the tube bundle rotor is provided with a shoveling plate, so that the material is heated uniformly and moves towards the direction of the discharge hole. Steam enters the rotor shaft of the discharge end from the rotary joint of the discharge end, reaches the inner cavity of the seal head of the discharge end from the rotor shaft of the discharge end, then enters each tube bundle for heat release, condensed water is discharged from the other end of the tube bundle and enters the seal head of the feed end, then enters the rotor shaft of the feed end, is discharged from the rotary joint of the rotor shaft of the feed end, and a steam trap is arranged at the outlet of the condensed water.
The application number is: the patent document of CN201520639630.3 discloses a tube bundle dryer convenient to overhaul, including the tube-shape casing, the casing is enclosed by semicircular upper half shell and lower half shell and forms, the both ends are equipped with respectively about the casing with its confined end plate, the casing inner chamber is equipped with the tube bank rotor with casing coaxial line, the both ends center of tube bank rotor is equipped with the rotor shaft respectively, upper half shell top is connected with the gas vent, one side lower part of upper half shell fore-and-aft direction is equipped with the window that extends along the casing axis direction, window department covers there is detachable split shell, the cambered surface shape of split shell is unanimous with the cambered surface shape at window position. The central angle of the split shell relative to the axis of the shell is 45 degrees. The lower edge of the split shell is butted with the upper edge of the lower half shell. The length of the split shell is equal to that of the upper half shell, and the left end and the right end of the split shell are respectively butted with the end plates. The end plates at the two ends of the shell are respectively provided with a large access door, and a plurality of small access doors are arranged along the length direction of the split shell. The tube bundle dryer saves time and labor when changing the rotor angle steel.
However, the following disadvantages still exist in the practical application process:
first, the energy consumption is high, because the heat source used in the device in the above reference is high temperature steam, which makes it unnecessary to use more energy; in addition, the drying process of the material is mainly provided with a heat conduction mode, and the utilization rate of heat radiation is low.
Secondly, the drying effect is poor, because the device in the above reference dries the wet material under normal pressure, the dried material is often burnt due to overhigh temperature, and the quality of the dried material is reduced (namely, the heat denaturation of part of the material, especially the material with high moisture content such as concentrated protein, etc.) is caused; in addition, the exhaust steam generated by drying the wet material contains burnt smell and total impurity particles, and if the exhaust steam is directly discharged into the atmosphere, air pollution is caused.
Disclosure of Invention
The present invention aims to solve the drawbacks of the prior art and to solve the problems set forth in the background art.
In order to achieve the above purpose, the present invention adopts the following technical scheme: the low-energy-consumption tube bundle dryer comprises a tube bundle dryer, wherein the tube bundle dryer comprises a horizontal housing, a hollow rotating shaft, drying pipes, hollow discs and scraping plates, the horizontal housing is fixedly arranged on a bottom plate, a cylindrical drying cavity is formed in the horizontal housing, the two ends of the horizontal housing are coaxially and dynamically connected with the hollow rotating shaft in a sealing mode, the hollow discs are coaxially arranged at the end parts of the hollow rotating shaft, which are positioned in the drying cavity, the two hollow discs are connected through a group of uniformly distributed drying pipes, and the outer side walls of the two hollow discs are also connected through a group of uniformly distributed scraping plates; the tube bundle dryer is also provided with a driving component, a thermodynamic component and a recovery component which are matched with the tube bundle dryer.
Still further, still be equipped with humidity transducer and barometric transducer on the inner wall in dry chamber, all plated the specular reflection layer on the outer wall in dry chamber and the drying tube, and the surface on specular reflection layer still is equipped with the wearing layer of one deck transparency.
Still further, the drive assembly includes driving motor and the transmission case of setting on the bottom plate, driving motor's motor shaft sets up the input at the transmission case, the output of transmission case sets up in corresponding hollow pivot.
Still further, still be equipped with the swing subassembly rather than complex on the bottom plate, swing subassembly includes connecting seat, rolling stock, rolling block, automatically controlled hydraulic stem and free bearing, the bottom at bottom plate one end is fixed to the connecting seat, and the connecting seat rotates with the fixed rolling stock that sets up subaerial, the tip of the bottom plate other end still rotates symmetrically and is connected with a set of rolling block, all be equipped with automatically controlled hydraulic stem on the rolling block, the end of automatically controlled hydraulic stem rotates with the free bearing that fixedly sets up subaerial correspondence respectively and is connected, the axis of rotation axis parallel and perpendicular hollow pivot of rolling stock each other, still be fixed with the linking arm between the automatically controlled hydraulic stem.
Furthermore, the horizontal housing is also provided with an access window, a feeding hopper, a discharging pipe and an exhaust pipe, wherein the feeding hopper and the exhaust pipe are arranged at the same end of the horizontal housing along the axial direction of the horizontal housing, the discharging pipe is arranged at the bottom of the bottom wall of the other end of the horizontal housing, and electromagnetic valves are arranged on the feeding hopper and the discharging pipe;
the heat power assembly comprises an evaporation tank, a delivery pump, a semiconductor refrigerating device, plate-type heat dissipation parts and a refrigerating fan, wherein the evaporation cavity is internally provided with an evaporation cavity and a refrigerating cavity which are isolated from each other up and down, the plate-type heat dissipation parts are arranged in the evaporation cavity and the refrigerating cavity, the semiconductor refrigerating device is arranged between the two plate-type heat dissipation parts, the hot end and the cold end of semiconductor refrigeration are respectively contacted with the plate-type heat dissipation parts in the evaporation cavity and the plate-type heat dissipation parts in the refrigerating cavity in a fitting manner, the refrigerating fan is arranged in the refrigerating cavity and has a downward air supply direction, an air inlet groove for conducting the refrigerating cavity is further formed in the side wall of the evaporation tank, a steam pipe for conducting the evaporation cavity is further arranged at the top of the evaporation tank, the other end of the steam pipe is connected with a hollow rotating shaft far away from the feeding hopper in a rotary dynamic sealing manner, and the delivery pump is arranged on the steam pipe;
The recovery assembly comprises a leaching tank, a condenser, a negative pressure pump, a heat conduction clamping plate, a filter, a recovery tank, a recovery pump, a circulating pump and a liquid storage tank, wherein the leaching tank, the condenser and the negative pressure pump are sequentially connected through a guide pipe, the input end of the leaching tank is connected with an exhaust pipe through a negative pressure pipe, the heat conduction clamping plate is arranged on the outer wall of the leaching tank, a liquid guide groove is formed in the heat conduction clamping plate in a winding manner, two return pipes which are respectively communicated with the corresponding end slots of the liquid guide groove are further arranged on the heat conduction clamping plate, one return pipe is connected to the top of the evaporation tank and conducts an evaporation cavity, the other return pipe is connected with the other hollow rotating shaft in a rotary sealing manner, a liquid discharge pipe is arranged at the bottom of the leaching tank and is sequentially communicated with the filter and the recovery tank, a liquid inlet pipe and a liquid return pipe on the condenser are connected through a circulating pump and the liquid storage tank in series, a cold air pipe is further arranged on the tank, the other end of the cold air pipe is arranged at the bottom of the evaporation tank and conducts the return pipe, and the recovery pipe is arranged at the output end of the recovery pump, and the recovery pipe is connected with the output end of the recovery pump.
Further, a one-way valve is arranged on a return pipe on the evaporation tank;
the evaporation cavity is pre-filled with superconducting liquid;
the outer side wall of the evaporation tank is also provided with a ring cover for closing the air inlet groove, the ring cover is provided with an air inlet pipe for conducting the inner side and the outer side of the ring cover, and the other end of the air inlet pipe is communicated with a negative pressure pipe at the output end of the negative pressure pump;
the part, which is not contacted with the semiconductor refrigeration device, between the two plate-type heat dissipation elements is filled with a heat insulation pad and isolates heat exchange;
the liquid storage tank is pre-filled with cooling liquid;
a water supplementing pipe is further arranged between the input end of the recovery pump and the recovery box, and flow valves are arranged on the recovery pipe and the water supplementing pipe at the input end of the recovery pump;
the bottom wall inside the leaching tank is slope-shaped with low output end and high input end.
Still further still be equipped with the compounding subassembly of cooperation with it on the horizontal housing, the compounding subassembly includes pulse valve, air duct and pulse pump, horizontal housing is along its axial evenly distributed has a set of pulse valve that switches on the dry chamber, and the injection direction of pulse valve is all along the radial of dry chamber, the pulse valve is connected to the output of pulse pump through the air duct.
Further, the input end of the pulse pump is connected with a heat exchanger, and the heat exchange part of the heat exchanger is in heat conduction contact with a return pipe between the hollow rotating shaft and the heat conduction clamping plate.
The application method of the low-energy-consumption tube bundle dryer comprises the following steps of:
s1, a user writes a specified control program into an external controller and starts the external controller to enter a specified working mode;
s2, the external controller instructs the electric control hydraulic rod to extend for a specified length, so that the drying cavity is positioned at a specified inclination angle;
s3, the external controller instructs the driving motor to start and drives the drying pipe to rotate slowly in the drying cavity at a designated speed;
s4, a user instructs an electromagnetic valve on the feeding bin to open through an external controller, pours materials into the drying cavity through the feeding hopper, and then instructs the electromagnetic valve on the feeding bin to close through the external controller;
s5, an external controller instructs the semiconductor refrigeration device, the refrigeration fan, the delivery pump, the recovery pump, the circulating pump, the atomizing nozzle and the pulse pump to start, and then the materials are dried in the drying cavity;
s6, the superconducting liquid in the evaporation cavity is heated and vaporized, and the conveying pump conveys high-temperature steam in the evaporation cavity into the drying pipe through the steam pipe to heat the drying pipe;
S7, continuously shoveling the material by the scraping plate in the rotating process to enable the material to be continuously scattered on the drying pipe, so that heat is conducted through contact between the material and the drying pipe, and the material is heated and dried;
s8, continuously sucking out wet air released by materials in the drying cavity by the negative pressure pump, and sequentially passing through the leaching tank and the condenser by the wet air in the drying cavity, so that the wet air is sequentially dedusted and cooled;
s9, the low-temperature steam in the drying pipe returns to the evaporation cavity through the return pipe, and in the process, the low-temperature steam in the return pipe heats the heat conduction clamping plate, and the heat conduction clamping plate uses the received heat to heat the inside of the shower box;
s10, synchronously with the step S9, the pulse pump drives the pulse valve to spray air into the drying cavity through the air duct at specified power, frequency and flow rate, so that materials attached to the drying pipes or clamped in gaps among the drying pipes are blown off;
s11, after the drying of the materials is finished, the external controller instructs the semiconductor refrigeration device, the refrigeration fan, the conveying pump, the recovery pump, the circulating pump and the atomizing nozzle to be closed, and then instructs the electromagnetic valve on the discharging pipe to be opened, so that the dried materials in the drying cavity are completely discharged.
Further, in the step S2, an end of the horizontal housing connected to the steam pipe is higher than an end of the horizontal housing connected to the liquid guiding pipe;
in the step S8, the drying cavity is always in a specified negative pressure state by the operation of the negative pressure pump, and the judgment of the external controller is based on the air pressure sensor;
in the step S7, the refrigerating fan conveys the cold energy released by the cold end of the semiconductor refrigerating device to the liquid storage tank through the cold air pipe and is used for cooling the cooling liquid in the liquid storage tank, and the circulating pump drives the cooling liquid in the liquid storage tank to circulate in the condenser;
in the step S8, sewage in the leaching tank flows into the recovery tank after being filtered by the filter, meanwhile, the recovery pump collects liquefied water at the output end of the condenser and provides a water source for the atomizing nozzle, and when the water quantity in the recovery pipe is insufficient, the external controller instructs the recovery pump to acquire the water source from the recovery tank through the water supplementing pipe, and in the process, the judgment of the external controller is based on the flow valve;
in the process of S5-S10, the external controller also carries out reciprocating telescopic movement on the synchronous instruction electric control hydraulic rod at a specified speed and a specified telescopic amount;
in S11, the external controller determines whether the drying of the material is completed according to the humidity sensor.
Compared with the prior art, the invention has the advantages and positive effects that,
the invention adds a tube bundle dryer, a driving component, a thermal power component, a recovery component and a mixing component, wherein the tube bundle dryer comprises a horizontal housing, a hollow rotating shaft, a drying pipe, a hollow disc and a scraping plate, a cylindrical drying cavity is arranged in the horizontal housing, a specular reflection layer is plated on the inner wall of the drying cavity and the outer wall of the drying pipe, a transparent wear-resisting layer is further arranged on the surface of the specular reflection layer, the thermal power component comprises an evaporation tank, a conveying pump, a semiconductor refrigerating device, a plate-type heat radiating piece and a refrigerating fan, the recovery component comprises a leaching tank, a condenser, a negative pressure pump, a heat conducting clamping plate, a filter, a recovery tank, a recovery pump, a circulating pump and a liquid storage tank, the mixing component comprises a pulse valve, an air duct and a pulse pump, and the input end of the pulse pump is connected with a heat exchanger, and the heat exchange part of the heat exchanger is in heat conduction contact with a return pipe between the hollow rotating shaft and the heat conducting clamping plate.
The heat of the material in the tube bundle dryer can be provided for drying through the hot end of the semiconductor refrigerating device. Meanwhile, waste heat discharged by the tube bundle dryer is used for improving the temperature inside the leaching tank (so that the intensity of intermolecular motion inside the leaching tank can be improved, the dedusting effect of the leaching tank is improved) and the temperature of the air flow ejected by the pulse valve (so that materials attached to the drying tubes or clamped in gaps between the drying tubes can be blown off through the pulse valve, the drying speed and effect of the materials are improved), and in the process, heat radiated by the drying tubes can be continuously reflected between the inner wall of the horizontal housing and the outer wall of the drying tubes, so that the degree of drying of the materials by the heating radiation is improved. Meanwhile, the cold energy released by the cold end of the semiconductor refrigerating device provides refrigerating energy for the cooling liquid circulated in the condenser, so that the cooling capacity of the condenser is improved.
According to the invention, the depth fit between the components is known, so that the energy utilization rate is greatly improved, the boiling point of moisture in the material is reduced in a relatively low-pressure state in the whole material drying process, and the drying of the material can be realized without high temperature (which is beneficial to reducing the power consumption of a semiconductor refrigerating device and avoiding the thermal denaturation of the material due to overhigh heating) in the tube bundle dryer. Therefore, the product of the invention can effectively reduce energy consumption and improve the quality of the dried materials in the practical application process.
Drawings
Fig. 1 is a visual diagram of the present invention at a first viewing angle.
Fig. 2 is a visual diagram of the present invention at a second viewing angle.
Fig. 3 is a partial cross-sectional view of the horizontal housing at a third view angle of the present invention.
Fig. 4 is an exploded view of the thermodynamic assembly of the evaporation tank at a fourth view angle, shown partially in section.
Fig. 5 is a visual illustration of the recycling assembly at a fifth perspective of the present invention.
Fig. 6 is a schematic view of the rinse tank of the present invention with portions cut away at a sixth view angle.
Fig. 7 is a schematic view of a heat-conducting clamping plate in a seventh view of the present invention, partially cut away.
Fig. 8 is a cross-sectional view of a drying duct according to the present invention.
Fig. 9 is an enlarged view of area a in fig. 2.
Reference numerals in the drawings represent respectively:
100-tube bundle dryer; 101-a horizontal housing; 102-a hollow rotating shaft; 103-drying tube; 104-hollow discs; 105-scraping plate; 106-a bottom plate; 107-humidity sensor; 108-an air pressure sensor; 109-a specular reflective layer; 110-a wear layer; 111-access panels; 112-feeding the hopper; 113-discharge pipe; 114-an exhaust pipe; 115-solenoid valve;
200-a drive assembly; 201-driving a motor; 202-a transmission case;
300-a thermodynamic component; 301-an evaporation tank; 302-a transfer pump; 303-semiconductor refrigeration device; 304-plate heat sink; 305-a refrigeration fan; 306-an air inlet groove; 307-steam pipe; 308-insulation pad; 309-a ring cover; 310-air inlet pipe;
400-recovery assembly; 401-a shower box; 402-a condenser; 403-negative pressure pump; 404-a heat conducting clamping plate; 405-a filter; 406-a recovery tank; 407-a recovery pump; 408-a circulation pump; 409-a liquid storage tank; 410-a catheter; 411-negative pressure tube; 412-a liquid guide groove; 413-a return pipe; 414-drain; 415-a liquid inlet pipe; 416-liquid return pipe; 417-circulation tube; 418-cold air pipe; 419-recovery tubes; 420-atomizing nozzle; 421—a one-way valve; 422-water supplementing pipe; 423-flow valve;
500-swinging assembly; 501-a connecting seat; 502-rotating a seat; 503-rotating the block; 504-an electric control hydraulic rod; 505-a hinge support; 506-a linking arm;
600-mixing components; 601-pulse valve; 602-an airway; 603-pulse pump; 604-heat exchanger.
Description of the embodiments
In order that the above objects, features and advantages of the application will be more clearly understood, a further description of the application will be rendered by reference to the appended drawings and examples. It should be noted that, without conflict, the embodiments of the present application and features in the embodiments may be combined with each other.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, however, the present application may be practiced otherwise than as described herein, and therefore the present application is not limited to the specific embodiments of the disclosure that follow.
A low energy tube bundle dryer of this embodiment, refer to fig. 1-9: including tube bundle dryer 100, swing assembly 500, drive assembly 200, thermodynamic assembly 300, recovery assembly 400.
(one)
The tube bundle dryer 100 comprises a horizontal housing 101, a hollow rotating shaft 102, drying tubes 103, hollow discs 104 and scrapers 105, wherein the horizontal housing 101 is fixedly arranged on a bottom plate 106, a cylindrical drying cavity is formed in the horizontal housing 101, the hollow rotating shaft 102 is coaxially and dynamically connected with the two ends of the horizontal housing 101 in a sealing mode, the hollow discs 104 are coaxially arranged at the ends of the hollow rotating shaft 102 in the drying cavity, the two hollow discs 104 are connected through a group of uniformly distributed drying tubes 103, and the outer side walls of the two hollow discs 104 are also connected through a group of uniformly distributed scrapers 105 (in this way, when the hollow discs 104 and the drying tubes 103 rotate in the horizontal housing 101, the scrapers 105 synchronously rotate and repeatedly lift and drop materials in the horizontal housing 101, so that the materials are fully and uniformly contacted with the drying tubes 103).
In addition, the horizontal housing 101 is further provided with an access window 111, a feeding hopper 112 (for filling materials into the horizontal housing 101), a discharging pipe 113 (for discharging dried materials from the horizontal housing 101), and an exhaust pipe 114 (for discharging hot and humid air generated in the drying process of the materials), wherein the feeding hopper 112 and the exhaust pipe 114 are arranged at the same end of the horizontal housing 101 along the axial direction thereof, the discharging pipe 113 is arranged at the bottom of the bottom wall of the other end of the horizontal housing 101, and electromagnetic valves 115 are arranged on the feeding hopper 112 and the discharging pipe 113.
In this embodiment, the access window 111 is made of a transparent material, so that a user can check the internal condition of the horizontal housing 101 through the access window 111, thereby facilitating the user to judge the drying condition of the material at any time. Meanwhile, in the shutdown state of the product, a user can open the access window 111 to carry out the overhaul and maintenance on the drying pipe 103 and the hollow disc 104 in the horizontal housing 101.
The inner wall of the drying cavity is also provided with a humidity sensor 107 and an air pressure sensor 108, the inner wall of the drying cavity and the outer wall of the drying pipe 103 are both plated with a specular reflection layer 109 (so that the reflection degree of heat radiation inside the horizontal housing 101 can be improved, and the heating efficiency and the heating degree of the heat radiation on materials are improved), and the surface of the specular reflection layer 109 is also provided with a transparent wear-resistant layer 110 (so that the materials can be prevented from directly wearing the specular reflection layer 109 in the drying process).
In the present embodiment, the humidity sensor 107 and the air pressure sensor 108 are both provided on the inner wall of the drying chamber near the exhaust duct 114.
(II)
The bottom plate 106 is further provided with a swinging assembly 500 matched with the bottom plate 106, the swinging assembly 500 comprises a connecting seat 501, a rotating seat 502, rotating blocks 503, electric control hydraulic rods 504 and a hinged seat 505, the connecting seat 501 is fixed at the bottom of one end of the bottom plate 106, the connecting seat 501 is rotationally connected with the rotating seat 502 fixedly arranged on the ground, the end part of the other end of the bottom plate 106 is rotationally connected with a group of rotating blocks 503 symmetrically, the rotating blocks 503 are respectively provided with the electric control hydraulic rods 504, the tail ends of the electric control hydraulic rods 504 are respectively rotationally connected with the hinged seat 505 fixedly arranged on the ground and corresponding to the rotating shafts of the rotating seat 502, the rotating blocks 503 and the hinged seat 505 are parallel to each other and perpendicular to the central axis of the hollow rotating shaft 102, and a connecting arm 506 is fixedly arranged between the electric control hydraulic rods 504 (so that the electric control hydraulic rods 504 can be ensured to stretch and keep synchronous, and the bottom plate 106 is ensured not to incline by taking the long side of the bottom plate 106 as the shaft).
The swinging assembly 500 is used for inclining the horizontal housing 101, so that the material is transferred from one end of the drying cavity to the other end under the cooperation of the scraping plate 105.
(III)
The driving assembly 200 comprises a driving motor 201 and a transmission case 202 which are arranged on the bottom plate 106, wherein a motor shaft of the driving motor 201 is arranged at an input end of the transmission case 202, and an output end of the transmission case 202 is arranged on the corresponding hollow rotating shaft 102.
(IV)
The thermodynamic component 300 comprises an evaporation tank 301, a delivery pump 302, a semiconductor refrigerating device 303, a plate type heat dissipation part 304 and a refrigerating fan 305, wherein the inside of the evaporation chamber is divided into an evaporation chamber and a refrigerating chamber which are isolated from each other up and down, the plate type heat dissipation part 304 is arranged in the evaporation chamber and the refrigerating chamber, the semiconductor refrigerating device 303 is arranged between the two plate type heat dissipation parts 304, the hot end and the cold end of semiconductor refrigeration are respectively in contact with the plate type heat dissipation part 304 in the evaporation chamber and the plate type heat dissipation part 304 in the refrigerating chamber in a fitting mode, the refrigerating fan 305 is arranged in the refrigerating chamber and the air supply direction is downward, an air inlet groove 306 for conducting the refrigerating chamber is further formed in the side wall of the evaporation tank 301, a steam pipe 307 for conducting the evaporating chamber is further arranged at the top of the evaporation tank 301, the other end of the steam pipe 307 is connected with a hollow rotating shaft 102 far from the feeding hopper 112 in a rotary sealing mode, and the delivery pump 302 is arranged on the steam pipe 307.
The use of the semiconductor refrigeration device 303 as a heat source is based on the following considerations:
(1) It does not require a refrigerant, and thus there are no problems of leakage and pollution of the refrigerant;
(2) the device has no mechanical transmission part, so that the device has no noise, no abrasion and long service life when in operation;
(3) the cooling speed and the refrigerating temperature can be arbitrarily regulated by changing the current, so that the flexibility is high;
(4) the refrigeration efficiency is irrelevant to the capacity;
(5) when the device works, the hot end and the cold end of the device release heat and cold respectively, so that the heat generated by the hot end of the device can be used for heating and drying materials, and the cold generated by the cold end of the device can be used for cooling high-temperature waste gas exhausted by the materials.
(V)
The recovery assembly 400 comprises a leaching tank 401, a condenser 402, a negative pressure pump 403, a heat conduction clamping plate 404, a filter 405, a recovery tank 406, a recovery pump 407, a circulating pump 408 and a liquid storage tank 409, wherein the leaching tank 401, the condenser 402 and the negative pressure pump 403 are sequentially connected through a conduit 410, the input end of the leaching tank 401 is connected with an exhaust pipe 114 through a negative pressure pipe 411, the heat conduction clamping plate 404 is arranged on the outer wall of the leaching tank 401, a liquid guide groove 412 is arranged in the heat conduction clamping plate 404 in a winding manner, two return pipes 413 which are respectively communicated with the corresponding end slots of the liquid guide groove 412 are further arranged on the heat conduction clamping plate 404, one return pipe 413 is connected to the top of the evaporation tank 301 and conducts an evaporation cavity, the other return pipe 413 is rotationally connected with the other hollow rotating shaft 102 in a rotary sealing manner, a liquid discharge pipe 414 is arranged at the bottom of the leaching tank 401, the liquid discharge pipe 414 is sequentially communicated with the filter 405 and the recovery tank 406, the circulating pump 408 and the liquid storage tank 409 are connected in series through 417 between the liquid inlet pipe 415 on the condenser 402 and the liquid return pipe 416, a cold air pipe 412 is further arranged on the liquid storage tank 409, the other end 418 is further provided with a circulating pipe 419, the circulating pump is arranged at the bottom of the evaporation tank 412, and the recovery pipe is connected with the recovery pump's end of the recovery pump's 419, and the recovery pipe is provided with the output end of the recovery pump's 419.
Because the materials can generate high-temperature waste gas in the drying process, and solid impurities such as dust are also mixed in the high-temperature waste gas, if the high-temperature waste gas is directly discharged into the atmosphere, serious environmental pollution can be caused. The high temperature exhaust gas is thus cleaned by the shower box 401 to remove solid impurities in the high temperature exhaust gas, and then cooled by the condenser 402 to finally be discharged into the environment as a low temperature and clean gas.
Wherein, a heat conducting clamping plate 404 is arranged on the shower box 401, and the reason why the heat conducting clamping plate 404 heats and maintains heat by utilizing low-temperature steam discharged by the drying pipe 103 is as follows: the heat conducting clamp plate 404 will obtain heat to raise the temperature inside the shower box 401, which is advantageous to raise the intensity of molecular motion in the shower box 401, so that solid impurities in the high temperature exhaust gas are more easily captured by the water mist and flow into the filter 405.
(six)
(1) A return pipe 413 on the evaporation tank 301 is provided with a one-way valve 421; this prevents steam from entering the return tube 413 (i.e. ensures that the high temperature steam in the evaporation chamber is all entering the steam tube 307).
(2) The evaporation cavity is pre-filled with superconducting liquid (the superconducting liquid is a novel superconducting heat transfer and efficient heat exchange technology, and the main function of the superconducting liquid is more excellent compared with water under normal pressure).
(3) The outer side wall of the evaporation tank 301 is also provided with a ring cover 309 for closing the air inlet groove 306, the ring cover 309 is provided with an air inlet pipe 310 for conducting the inside and the outside of the ring cover, and the other end of the air inlet pipe 310 is communicated with a negative pressure pipe 411 at the output end of the negative pressure pump 403. In this way, a part of the gas with clean output end and low temperature of the negative pressure pump 403 can be split into the refrigerating cavity, which is not only beneficial to the stability of cold air output by the refrigerating cavity, but also can avoid the influence of dust accumulated on the plate type heat dissipation element 304 in the refrigerating cavity on the efficiency of releasing cold energy outwards.
(4) The portion between the two plate heat sinks 304, which is not in contact with the semiconductor refrigeration device 303, is filled with heat insulation pads 308 and isolates heat exchange; this is to avoid the direct contact between the two plate heat sinks 304, which would cause a chaotic transfer of heat and cold to both.
(5) The tank 409 is pre-filled with a cooling liquid, and the volume of cooling liquid in the tank 409 is larger than the volume of the cooling chamber of the condenser 402.
(6) Since the amount of water cooled by the condenser 402 from the high temperature exhaust gas is smaller and smaller as the material drying process proceeds, the water discharged from the condenser 402 is insufficient to support the normal operation of the shower tank 401, so that the water replenishing pipe 422 needs to be provided between the input end of the recovery pump 407 and the recovery tank 406, and the flow valves 423 are provided on both the recovery pipe 419 and the water replenishing pipe 422 at the input end of the recovery pump 407.
(7) The bottom wall inside the leaching tank 401 is in a slope shape with a low output end and a high input end, so that the sewage accumulated at the bottom of the leaching tank 401 can flow out intensively and quickly and enter the recovery tank 406.
(seven)
While the material is dried in the drying chamber, the cooperation of the scraper 105 and the swinging assembly 500 can make the material continuously lifted and uniformly scattered, but there are still cases where part of the material is stuck on the drying pipes 103 or stuck in the gaps between the drying pipes 103, and this part of the material cannot be dried effectively and uniformly.
It is necessary to provide a mixing assembly 600 on the horizontal casing 101, where the mixing assembly 600 includes a pulse valve 601, an air duct 602, and a pulse pump 603, the horizontal casing 101 is uniformly distributed with a set of pulse valves 601 that conduct the drying chamber along the axial direction thereof, and the injection directions of the pulse valves 601 are all along the radial direction of the drying chamber, and the pulse valves 601 are connected to the output end of the pulse pump 603 through the air duct 602.
In this way, the air flow in the radial direction can be continuously sprayed into the drying cavity through the pulse valve 601, so that the material adhered to the drying pipes 103 or clamped in the gaps between the drying pipes 103 is blown off, and the material distribution in the drying cavity can be more uniform through the cooperation of the material mixing assembly 600, the scraping plate 105 and the swinging assembly 500, so that the drying efficiency and quality of the material are improved.
The input end of the pulse pump 603 is connected with a heat exchanger 604, and the heat exchange part of the heat exchanger 604 is in heat conduction contact with the return pipe 413 between the hollow rotating shaft 102 and the heat conducting clamping plate 404, so that the heat of the low-temperature steam in the return pipe 413 can be utilized by the heat exchanger 604 to heat the air pumped by the pulse pump 603, and the air flow sprayed by the pulse valve 601 has a higher temperature, so that the temperature in the drying cavity is always maintained within a specified temperature range.
The application method of the low-energy-consumption tube bundle dryer comprises the following steps of:
s1, a user writes a specified control program into an external controller and starts the external controller to enter a specified working mode.
S2, the external controller instructs the electric control hydraulic rod 504 to extend for a specified length, so that the drying cavity is at a specified inclination angle (one end of the horizontal housing 101 connected with the steam pipe 307 is higher than one end of the horizontal housing 101 connected with the liquid guide pipe), and therefore when materials are put into the drying cavity, the materials cannot be accumulated at the position of the drying cavity at the feeding bin to influence the feeding of the subsequent materials.
S3, the external controller instructs the driving motor 201 to start and drive the drying duct 103 to rotate slowly in the drying chamber at a specified speed.
S4, a user instructs the electromagnetic valve 115 on the feeding bin to open through the external controller, pours materials into the drying cavity through the feeding hopper 112, and then instructs the electromagnetic valve 115 on the feeding bin to close through the external controller.
S5, the external controller instructs the semiconductor refrigeration device 303, the refrigeration fan 305, the delivery pump 302, the recovery pump 407, the circulation pump 408, the atomizer 420 and the pulse pump 603 to start, and then the materials are dried in the drying cavity.
S6, the superconducting liquid in the evaporation cavity is heated and vaporized, and the conveying pump 302 conveys high-temperature steam in the evaporation cavity into the drying pipe 103 through the steam pipe 307 to heat the drying pipe 103.
S7, the scraping plate 105 continuously lifts the materials in the rotating process to enable the materials to be continuously scattered on the drying pipe 103, so that heat is conducted through contact between the materials and the drying pipe 103, and the materials are heated and dried. At the same time, the refrigeration fan 305 delivers the cold released from the cold side of the semiconductor refrigeration device 303 to the liquid storage tank 409 through the cold air pipe 418 and cools the cooling liquid therein, and the circulation pump 408 drives the cooling liquid in the liquid storage tank 409 to circulate in the condenser 402.
S8, the negative pressure pump 403 continuously sucks out the wet air released by the materials in the drying cavity (in the process, the negative pressure pump 403 works to enable the drying cavity to be always in a specified negative pressure state, and the judgment of the external controller is based on the air pressure sensor 108), and the wet air in the drying cavity sequentially passes through the shower box 401 and the condenser 402, so that the wet air is sequentially dedusted and cooled. In addition, the sewage in the rinsing tank 401 flows into the recovery tank 406 after being filtered by the filter 405, while the recovery pump 407 collects the water liquefied at the output end of the condenser 402 and supplies the water source to the atomizer head 420, and when the water amount in the recovery pipe 419 is insufficient, the external controller instructs the recovery pump 407 to acquire the water source from the recovery tank 406 through the water replenishment pipe 422, in which process the judgment of the external controller is based on the flow valve 423.
S9, the low-temperature steam in the drying pipe 103 returns to the evaporation chamber through the return pipe 413, and in this process, the low-temperature steam in the return pipe 413 heats the heat-conducting clamping plate 404, and the heat-conducting clamping plate 404 uses the received heat to heat the inside of the shower box 401.
S10, in synchronization with S9 above, the pulse pump 603 drives the pulse valve 601 through the air duct 602 to spray air into the drying chamber at a specified power, frequency and flow rate, thereby blowing off the material attached to the drying pipes 103 or stuck in the gaps between the drying pipes 103. It should be noted that, in practical application, a user may set a filter screen at the air inlet end of the heat exchanger 604, so that the pulse valve 601 inputs clean air into the drying cavity, and under the cooperation of the negative pressure pump 403, the material can be dried and simultaneously dust-removed and screened.
S11, after the drying of the materials is finished, the external controller instructs the semiconductor refrigeration device 303, the refrigeration fan 305, the delivery pump 302, the recovery pump 407, the circulation pump 408 and the atomizing nozzle 420 to be closed, and then instructs the electromagnetic valve 115 on the discharge pipe 113 to be opened, so that the dried materials in the drying cavity are all discharged (wherein, the external controller judges whether the materials are dried or not according to the humidity sensor 107).
The present invention is not limited to the above-mentioned embodiments, and any equivalent embodiments which can be changed or modified by the technical content disclosed above can be applied to other fields, but any simple modification, equivalent changes and modification made to the above-mentioned embodiments according to the technical substance of the present invention without departing from the technical content of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (7)
1. A tube bundle dryer comprising a tube bundle dryer (100), characterized in that: the tube bundle dryer (100) comprises a horizontal housing (101), a hollow rotating shaft (102), drying pipes (103), hollow discs (104) and scraping plates (105), wherein the horizontal housing (101) is fixedly arranged on a bottom plate (106), a cylindrical drying cavity is formed in the horizontal housing (101), the hollow rotating shaft (102) is coaxially and dynamically connected in a sealing mode at two ends of the horizontal housing (101), the hollow discs (104) are coaxially arranged at the ends of the hollow rotating shaft (102) in the drying cavity, the two hollow discs (104) are connected through a group of uniformly distributed drying pipes (103), and the outer side walls of the two hollow discs (104) are also connected through a group of uniformly distributed scraping plates (105); the tube bundle dryer (100) is also provided with a driving assembly (200), a thermodynamic assembly (300) and a recovery assembly (400) which are matched with the tube bundle dryer;
The horizontal type cover shell (101) is further provided with an access window (111), a feeding hopper (112), a discharge pipe (113) and an exhaust pipe (114), the feeding hopper (112) and the exhaust pipe (114) are arranged at the same end of the horizontal type cover shell (101) along the axial direction of the horizontal type cover shell, the discharge pipe (113) is arranged at the bottom of the bottom wall of the other end of the horizontal type cover shell (101), and electromagnetic valves (115) are arranged on the feeding hopper (112) and the discharge pipe (113);
the thermal power assembly (300) comprises an evaporation box (301), a conveying pump (302), a semiconductor refrigerating device (303), plate-type heat dissipation parts (304) and a refrigerating fan (305), wherein the inside of the evaporation box is divided into an evaporation cavity and a refrigerating cavity which are isolated from each other up and down, the evaporation cavity and the refrigerating cavity are respectively provided with the plate-type heat dissipation parts (304), the semiconductor refrigerating device (303) is arranged between the two plate-type heat dissipation parts (304), the hot end and the cold end of semiconductor refrigeration are respectively contacted with the plate-type heat dissipation parts (304) in the evaporation cavity and the plate-type heat dissipation parts (304) in the refrigerating cavity in a fitting mode, the refrigerating fan (305) is arranged in the refrigerating cavity and is downwards arranged in the air supply direction, an air inlet groove (306) for conducting the refrigerating cavity is further formed in the side wall of the evaporation box (301), a steam pipe (307) for conducting the evaporation cavity is further arranged at the top of the evaporation box (301), the other end of the steam pipe (307) is connected with a hollow rotating shaft (102) far away from the feeding hopper (112) in a rotary and dynamic sealing mode, and the conveying pump (302) is arranged on the steam pipe (307);
The recovery component (400) comprises a leaching tank (401), a condenser (402), a negative pressure pump (403), a heat conduction clamping plate (404), a filter (405), a recovery tank (406), a recovery pump (407), a circulating pump (408) and a liquid storage tank (409), wherein the leaching tank (401), the condenser (402) and the negative pressure pump (403) are sequentially connected through a conduit (410), the input end of the leaching tank (401) is connected with an exhaust pipe (114) through a negative pressure pipe (411), the heat conduction clamping plate (404) is arranged on the outer wall of the leaching tank (401), a liquid guide groove (412) is formed in the heat conduction clamping plate (404) in a winding manner, two return pipes (413) which are respectively communicated with the corresponding end notches of the liquid guide groove (412) are further arranged on the heat conduction clamping plate (404), one return pipe (413) is connected to the top of the evaporation tank (301) and conducts the evaporation cavity, the other return pipe (413) is rotationally connected with the other hollow rotating shaft (102) through a rotary dynamic sealing mode, the bottom of the leaching tank (401) is provided with the filter (414) and the liquid drain pipe (406) are sequentially communicated with the liquid drain pipe (406), the liquid inlet pipe (415) and the liquid return pipe (416) on the condenser (402) are connected through a circulating pipe (417), the circulating pipe (417) is connected with a circulating pump (408) and a liquid storage tank (409) in series, the liquid storage tank (409) is also provided with a cold air pipe (418), the other end of the cold air pipe (418) is arranged at the bottom of the evaporation tank (301) and is communicated with a refrigerating cavity, the input end and the output end of the recovery pump (407) are both provided with recovery pipes (419), the recovery pipes (419) at the input end of the recovery pump (407) are arranged at a water outlet at the lower end of the output end of the condenser (402), and the recovery pipes (419) at the output end of the recovery pump (407) are connected with an atomizing nozzle (420) on the evaporation tank (401);
A humidity sensor (107) and an air pressure sensor (108) are further arranged on the inner wall of the drying cavity, a mirror reflection layer (109) is plated on the inner wall of the drying cavity and the outer wall of the drying pipe (103), and a transparent wear-resistant layer (110) is further arranged on the surface of the mirror reflection layer (109);
the driving assembly (200) comprises a driving motor (201) and a transmission box (202) which are arranged on the bottom plate (106), a motor shaft of the driving motor (201) is arranged at the input end of the transmission box (202), and the output end of the transmission box (202) is arranged on the corresponding hollow rotating shaft (102).
2. The tube bundle dryer according to claim 1, characterized in that the bottom plate (106) is further provided with a swinging component (500) matched with the bottom plate (106), the swinging component (500) comprises a connecting seat (501), a rotating seat (502), a rotating block (503), an electric control hydraulic rod (504) and a hinge seat (505), the connecting seat (501) is fixed at the bottom of one end of the bottom plate (106), the connecting seat (501) is rotationally connected with the rotating seat (502) fixedly arranged on the ground, the end of the other end of the bottom plate (106) is symmetrically rotationally connected with a group of rotating blocks (503), the rotating blocks (503) are respectively provided with an electric control hydraulic rod (504), the tail ends of the electric control hydraulic rods (504) are respectively rotationally connected with the corresponding hinge seats (505) fixedly arranged on the ground, the rotating shafts of the rotating seat (502), the rotating block (503) and the hinge seats (505) are mutually parallel and are perpendicular to the central axis of the hollow rotating shaft (102), and a connecting arm (506) is fixedly arranged between the electric control hydraulic rods (504).
3. Tube bundle dryer according to claim 2, characterized in that the return tube (413) of the evaporation tank (301) is provided with a one-way valve (421);
the evaporation cavity is pre-filled with superconducting liquid;
the evaporation tank is characterized in that a ring cover (309) for closing the air inlet groove (306) is further arranged on the outer side wall of the evaporation tank (301), an air inlet pipe (310) for conducting the inside and the outside of the ring cover (309) is arranged on the ring cover, and the other end of the air inlet pipe (310) is communicated with a negative pressure pipe (411) at the output end of a negative pressure pump (403);
the part, which is in contact with the non-semiconductor refrigeration device (303), between the two plate-type heat dissipation elements (304) is filled with heat insulation pads (308) and isolates heat exchange;
the liquid storage tank (409) is pre-filled with cooling liquid;
a water supplementing pipe (422) is further arranged between the input end of the recovery pump (407) and the recovery box (406), and flow valves (423) are arranged on the recovery pipe (419) and the water supplementing pipe (422) at the input end of the recovery pump (407);
the bottom wall inside the leaching tank (401) is in a slope shape with a low output end and a high input end.
4. A tube bundle dryer according to claim 3, characterized in that the horizontal housing (101) is further provided with a mixing assembly (600) matched with the horizontal housing, the mixing assembly (600) comprises pulse valves (601), air ducts (602) and pulse pumps (603), the horizontal housing (101) is uniformly distributed with a group of pulse valves (601) for conducting drying cavities along the axial direction of the horizontal housing, the spraying directions of the pulse valves (601) are all along the radial direction of the drying cavities, and the pulse valves (601) are connected to the output ends of the pulse pumps (603) through the air ducts (602).
5. Tube bundle dryer according to claim 4, characterized in that the input of the pulse pump (603) is connected with a heat exchanger (604), the heat exchange part of the heat exchanger (604) being in heat-conducting contact with the return tube (413) between the hollow rotating shaft (102) and the heat-conducting clamping plate (404).
6. The process for using a tube bundle dryer according to claim 5, comprising the steps of:
s1, a user writes a specified control program into an external controller and starts the external controller to enter a specified working mode;
s2, the external controller instructs the electric control hydraulic rod (504) to extend for a specified length, so that the drying cavity is at a specified inclination angle;
s3, the external controller instructs the driving motor (201) to start and drives the drying pipe (103) to rotate slowly in the drying cavity at a designated speed;
s4, a user instructs an electromagnetic valve (115) on the feeding bin to open through an external controller, pours materials into the drying cavity through the feeding hopper (112), and then instructs the electromagnetic valve (115) on the feeding bin to close through the external controller;
s5, an external controller instructs a semiconductor refrigeration device (303), a refrigeration fan (305), a conveying pump (302), a recovery pump (407), a circulating pump (408), an atomization nozzle (420) and a pulse pump (603) to start, and then the materials are dried in a drying cavity;
S6, the superconducting liquid in the evaporation cavity is heated and vaporized, and the conveying pump (302) conveys high-temperature steam in the evaporation cavity into the drying pipe (103) through the steam pipe (307) to heat the drying pipe (103);
s7, continuously picking up the material by the scraping plate (105) in the rotating process to continuously scatter the material on the drying pipe (103), so that heat is conducted through contact between the material and the drying pipe (103), and the material is heated and dried;
s8, continuously sucking wet air released by materials in a drying cavity by a negative pressure pump (403), and sequentially passing through a leaching tank (401) and a condenser (402) by the wet air in the drying cavity, so that the wet air is sequentially dedusted and cooled;
s9, the low-temperature steam in the drying pipe (103) returns to the evaporation cavity through the return pipe (413), and in the process, the low-temperature steam in the return pipe (413) heats the heat conducting clamping plate (404), and the heat conducting clamping plate (404) uses the received heat to heat the interior of the leaching tank (401);
s10, synchronously with the step S9, the pulse pump (603) drives the pulse valve (601) to spray air into the drying cavity through the air duct (602) at a specified power, frequency and flow rate, so that materials attached to the drying pipes (103) or clamped in gaps between the drying pipes (103) are blown off;
S11, after the drying of the materials is finished, the external controller instructs the semiconductor refrigeration device (303), the refrigeration fan (305), the conveying pump (302), the recovery pump (407), the circulating pump (408) and the atomizing nozzle (420) to be closed, and then instructs the electromagnetic valve (115) on the discharge pipe (113) to be opened, so that the dried materials in the drying cavity are all discharged.
7. The process according to claim 6, wherein in S2, the end of the horizontal casing (101) connected to the steam pipe (307) is higher than the end of the horizontal casing (101) connected to the liquid guide pipe;
in the step S8, the drying cavity is always in a specified negative pressure state by the operation of the negative pressure pump (403), and the judgment of the external controller is based on the air pressure sensor (108);
in the step S7, the refrigerating fan (305) conveys the cold energy released by the cold end of the semiconductor refrigerating device (303) to the liquid storage tank (409) through the cold air pipe (418) and is used for cooling the cooling liquid in the liquid storage tank, and the circulating pump (408) drives the cooling liquid in the liquid storage tank (409) to circulate in the condenser (402);
in the step S8, sewage in the leaching tank (401) flows into the recovery tank (406) after being filtered by the filter (405), meanwhile, the recovery pump (407) collects liquefied water at the output end of the condenser (402) and provides a water source for the atomizing nozzle (420), and when the water amount in the recovery pipe (419) is insufficient, the external controller instructs the recovery pump (407) to acquire the water source from the recovery tank (406) through the water supplementing pipe (422), and in the process, the judgment of the external controller is based on the flow valve (423);
In the process of S5-S10, the external controller also carries out reciprocating telescopic movement on the synchronous instruction electric control hydraulic rod (504) at a specified speed and a specified telescopic amount;
in S11, the external controller determines whether the drying of the material is completed according to the humidity sensor (107).
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| CN202310546053.2A CN116428835B (en) | 2022-05-13 | 2022-05-13 | Use process of tube bundle dryer |
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| CN202310546053.2A CN116428835B (en) | 2022-05-13 | 2022-05-13 | Use process of tube bundle dryer |
| CN202210520395.2A CN114754564B (en) | 2022-05-13 | 2022-05-13 | Low-energy-consumption tube bundle dryer and application method thereof |
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| CN114754564B (en) | 2023-05-30 |
| CN116428835A (en) | 2023-07-14 |
| CN114754564A (en) | 2022-07-15 |
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