CN109442966A - A kind of heat-pump-type pipe bundle drier - Google Patents
A kind of heat-pump-type pipe bundle drier Download PDFInfo
- Publication number
- CN109442966A CN109442966A CN201811592295.0A CN201811592295A CN109442966A CN 109442966 A CN109442966 A CN 109442966A CN 201811592295 A CN201811592295 A CN 201811592295A CN 109442966 A CN109442966 A CN 109442966A
- Authority
- CN
- China
- Prior art keywords
- heat pump
- heat
- condenser
- pipe bundle
- bundle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/18—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs
- F26B17/20—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by rotating helical blades or other rotary conveyors which may be heated moving materials in stationary chambers, e.g. troughs the axis of rotation being horizontal or slightly inclined
-
- 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
- F25B30/00—Heat pumps
- F25B30/06—Heat pumps characterised by the source of low potential heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B23/00—Heating arrangements
- F26B23/001—Heating arrangements using waste heat
- F26B23/002—Heating arrangements using waste heat recovered from dryer exhaust gases
- F26B23/005—Heating arrangements using waste heat recovered from dryer exhaust gases using a closed cycle heat pump system ; using a heat pipe system
-
- 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
- F26B25/005—Treatment of dryer exhaust gases
Abstract
The present invention provides a kind of heat-pump-type pipe bundle driers, including heat pump unit and pipe bundle drier unit, heat pump unit is closed circuit, heat pump unit includes sequentially connected expansion valve, evaporator, compressor and the bundle condenser with drying machine units shared, and pipe bundle drier unit includes shell, shovelling plate, transmission mechanism, feed inlet, discharge port, waste gas outlet and the bundle condenser shared with heat pump unit；Bundle condenser and shovelling plate are installed in inside shell, and component of the bundle condenser as heat pump unit and drying machine units shared is both the condenser of heat pump unit, while being the heater of pipe bundle drier unit again.In such a way that air source heat pump technology and traditional pipe bundle drier are organically combined, a kind of heat-pump-type pipe bundle drier is provided, the drying thermal efficiency of pipe bundle drier, effectively energy conservation are improved, realizes the target of energy conservation and environmental protection, drying efficiency height, drying superior product quality.
Description
Technical field
The invention belongs to grain drying equipment fields, more particularly to a kind of heat-pump-type pipe bundle drier.
Background technique
Heat-pump-type pipe bundle drier, graininess, sheet, powdery for industries such as grain, food, feed, light industry, starch
The drying operation of equal non-stickies or half viscous material.
Dry materials are the processes that heat is added on to wet stock and removes the moisture in wet stock, due to needing to mention when drying
Sensible heat and evaporation latent heat required for evaporating for the moisture in wet stock heating and wet stock, therefore, dry materials process needs
A large amount of heat is expended, so, in drying process, under the premise of guaranteeing dry materials quality, drying efficiency is improved, is reduced dry
The energy consumption of dry process is the vital task of current dry industry energy-saving emission reduction.
Heat pump techniques are to absorb heat from low-temperature heat source, it is made to release the technology of available energy at relatively high temperatures.Root
According to inverse Carnot cycle principle, consume a small amount of electrical energy drive heat pump, by flow working medium evaporator, compressor, condenser and
The thermodynamic cycle process of gas-liquid two-phase in the components such as expansion valve realizes the heating to dried medium.Air source heat pump technology has
The advantages that thermal efficiency is high, energy-saving and environmental protection are pollution-free.
Traditional pipe bundle drier that current drying industry uses is that the direct-fired conduction of one kind and heat radiation type are dry
Equipment, using steam as heat source, pipe bundle drier is by tube bank, shell, transmission device, steam connection system, condensed water discharge system
The composition such as system.Shell both ends are provided with inlet port and outlet port, restrain the heating tube being parallel to each other by more and form, one end setting
There is steam inlet, the other end is provided with condensation-water drain, and tube bank is whole to be rotated under the drive of the transmission mechanism.When work, wet object
Material enters shell from the feed inlet of shell one end, in the case where the shovelling plate restraining the rotation of heating tube and being fixed in heating tube is copied,
Material is evenly distributed between tube bank heating tube, and mobile to the other end of shell；So simultaneously, high-temperature steam from steam into
Mouth enters, and passes through in heating tube and condenses, and releases a large amount of condensation heat, the conduction and heat radiation that heat passes through heating tube wall
The wet stock outside heating tube is passed to, the heated vapor that is vaporizated into of the moisture in material is discharged from waste gas outlet, the object after drying
Material is then collected from the discharge gate of the shell other end and is discharged.Due to work when steam condensation be condensed water be discharged, a large amount of heat with
Loss, it is secondary heat source that and steam is generated by steam boiler, so traditional using steam as the pipe bundle drier of heat source heat
Efficiency is lower.In addition because current steam boiler is most of also based on fire coal, using steam, there is also the pressure of environmental protection.
In order to solve the above problem, China Patent Publication No. CN105466174A discloses a kind of vacuum pipe bundle drier, pipe
Feed inlet is arranged in the side of beam drying machine, and discharge port is arranged in the other side, and setting waste vapour exports on the shell of pipe bundle drier, institute
The shaft at the tube bank both ends for the pipe bundle drier stated is flexibly connected with shell by mechanical seal, one end connection transmission dress of shaft
It sets, the shaft is hollow shaft, and inner cavity is connected to the tube bank of pipe bundle drier, the shaft of the discharge port side of pipe bundle drier
Be connected to steam steam inlet device, the shaft of the feed inlet side of pipe bundle drier is connected to condensed water outlet device, pipe bundle drier into
Material mouth is connected to feeding device, and the discharge port of pipe bundle drier is connected to discharging device, and the waste vapour of the pipe bundle drier, which exports, to be connected
Logical treater for waste gas.The inventive structure is simple, easy to use, low cost, has a wide range of application, and can be good at, which reduces material, does
The temperature of raw steam, reduces energy consumption needed for dry, reduces waste steam exhausting, reaches energy-saving and emission-reduction purpose.But the device needs
The vacuum system of a set of steam that can draw water, so that equipment investment is costly, running expense is high, and production efficiency of equipment is low.
Chinese patent notification number CN205897824U discloses a kind of direct connection pipe bundle drier, which is
Contact drier, steam, which by rotary joint enters intraductal heat transfer and becomes condensed water, to be discharged, the moisture in material outside pipe by
Thermal change is discharged at steam by dehumidifier blower, and material is transmitted to obtain shovel promotion in tube bank, uniformly drops down onto heating tube outer surface, and
Outlet material is pushed by shovel from input end and obtains drying.The direct connection pipe bundle drier, including pedestal, shell, transmission system and rotation
Adapter, shovel can adjust the angle according to the actual situation, and be equipped with steam control valve door, and dried material range is wide, moisture evaporation
Amount is big, and low energy consumption and can continuous production.But the device still uses steam heating method, steam condensation is condensation at work
Water discharge, a large amount of heat is lost therewith, and steam is generated by steam boiler, is secondary heat source, so traditional with steam
It is lower for the pipe bundle drier thermal efficiency of heat source.In addition because current steam boiler is most of also based on fire coal, steam is used
There is also the pressure of environmental protection.
Summary of the invention
For the above-mentioned prior art, the problem to be solved in the present invention is by by air source heat pump technology and traditional tube bank
The mode that drying machine organically combines, provides a kind of heat-pump-type pipe bundle drier, and the dry heat of pipe bundle drier not only can be improved
Efficiency, effectively energy conservation realize energy conservation and environmental protection, drying also as being reached and being reduced environmental pollution using this clean energy resource of electric energy
High-efficient, drying superior product quality target.
The technical scheme is that a kind of heat-pump-type pipe bundle drier, including heat pump unit and pipe bundle drier unit,
Heat pump unit is closed circuit, heat pump unit include sequentially connected expansion valve, evaporator, compressor and with tube bank drying
The bundle condenser of machine units shared, the heat pump fluid import of expansion valve and the heat pump fluid of bundle condenser are exported and are connected, pressure
The heat pump fluid outlet of contracting machine is connect with the heat pump fluid import of bundle condenser；Pipe bundle drier unit include shell, shovelling plate,
Transmission mechanism, feed inlet, discharge port, waste gas outlet and the bundle condenser shared with heat pump unit, bundle condenser and are copied
Plate is installed in inside shell, and component of the bundle condenser as heat pump unit and drying machine units shared, is both heat pump unit
Condenser, while being the heater of pipe bundle drier unit again, the inner wall of tube shell is used for the formation of bundle condenser outer wall
Store the material cavity of material；Shovelling plate setting restrains drying in heat-pump-type in bundle condenser periphery, feed inlet, discharge port setting
Machine two sides, waste gas outlet are arranged above shell.
Further, the material movement direction is opposite with heat pump fluid approach axis.
Further, the bundle condenser piping mode uses circular arrangement single tube journey, and multiple center combs are arranged.
By multiple center combs, the heating surface area of material can be increased, improve dry materials efficiency.
Further, exhaust gas fan is inhaled in the waste gas outlet connection, to take the water vapour of dry materials generation away in time, is mentioned
High material drying efficiency.
Further, the rotating mechanism is connected with the central rotating shaft of bundle condenser and shovelling plate, and the rotating mechanism is set
Set adjustable speed variator.Reach control material to control the speed of shovelling plate by the speed that adjustable speed variator adjusts rotating mechanism
The abundant drying of material may be implemented in flowing velocity.
The working principle of the technical program is heat pump fluid in heat pump unit under the driving of heat pump compressor, in heat pump
It is recycled in unit, working medium absorbs after the heat in nature air, by liquid in cyclic process in evaporator
It is evaporated to gas, is sent to after compressor further compresses in bundle condenser (tube bank in pipe bundle drier unit).In pipe
Shu Zhong, the heat that the condensation of the heat pump fluid gas of high temperature and pressure is released is by the conduction and radiant heat transfer of tube bank tube wall to pipe
Wet stock outside beam, to realize the purpose of dried material, while the expanded valve of the heat pump fluid after condensation liquefaction turns again to
In evaporator, so constantly recycle.
The beneficial effects of the present invention are:
1, heat-pump-type pipe bundle drier of the present invention is using bundle condenser as the heater of pipe bundle drier, and it is dry to be mounted on tube bank
In dry casing body, condenses, released in bundle condenser from the heat pump fluid that heat pump compressor comes out when drying machine works
Condensation heat all passes to the wet stock outside condenser by the conduction and heat radiation of tube bank tube wall, avoids indirect heat transfer and produces
The decline of raw heat transfer efficiency, also without in heat transfer process due to heat distributes caused by thermal loss, realize heat pump system
The fully effective utilization of condensation heat, improves the drying thermal efficiency of drying machine machine system when system work.
2, the condenser of tube bank and heat pump in pipe bundle drier is integrated by heat-pump-type pipe bundle drier of the present invention, can
The overall structure for simplifying drying machine, reduces the manufacturing cost of equipment.Simultaneously as structure simplifies, the fortune of drying machine can be reduced
Row probability of failure improves the operational reliability of equipment.
3, using heat pump as heating plant, by the drying process cannot low grade heat energy in direct applied air
Utilizable high-grade thermal energy is converted to, the heat provided can reach 3 ~ 4 times or more of consumption electric energy, has and saves significantly
It can effect.Drying machinery is a kind of highly energy-consuming equipment, and the energy consumption of various drying operations accounts for the 10% of Chinese national economy total energy consumption
More than, energy conservation has become the common recognition of entire society and the great economy policy of country, the heat using heat pump as drying machine
Source, the energy shortage situation for alleviating China are of great significance, and generate generate good economic and social benefit simultaneously.
4, heat pump is as heating plant, in addition to energy conservation, and has environmental-friendly remarkable advantage.With Coal burning boilers phase
Compare, can significantly reduce the discharge of carbon, sulphur and particulate pollutant, playing to improvement environmental quality level actively has
The effect of benefit.
Detailed description of the invention
Fig. 1 is a kind of composed structure schematic diagram of heat-pump-type pipe bundle drier each section of the present invention.
Fig. 2 is the structural schematic diagram of shovelling plate of the present invention.
In figure: 1- expansion valve, 2- evaporator, 3- compressor, 4- shovelling plate, 5- shell, 6- bundle condenser, 7- driver
Structure, 8- feed inlet, 9- discharge port, 10- waste gas outlet, 11- material.
Specific embodiment
A kind of technical solution of heat-pump-type pipe bundle drier is described in further detail with reference to the accompanying drawing.
Embodiment one
As shown in Fig. 1 Fig. 2, a kind of heat-pump-type pipe bundle drier, including heat pump unit and pipe bundle drier unit, the heat pump list
Member is closed circuit, and heat pump unit includes sequentially connected expansion valve 1, evaporator 2, compressor 3 and is total to drying machine unit
Bundle condenser 6, the heat pump fluid import of expansion valve 1 and the heat pump fluid of bundle condenser 6 are exported and are connected, compressor 3
Heat pump fluid outlet connect with the heat pump fluid import of bundle condenser 6；Pipe bundle drier unit include shell 5, shovelling plate 4,
Transmission mechanism 7, feed inlet 8, discharge port 9, waste gas outlet 10 and the bundle condenser shared with heat pump unit, bundle condenser
6 and shovelling plate 4 be installed in inside shell 5, component of the bundle condenser 6 as heat pump unit and drying machine units shared is both
The condenser of heat pump unit, while being the heater of pipe bundle drier unit again；5 inner wall of shell and 6 outer wall shape of bundle condenser
At the material cavity for storing material 11；The setting of shovelling plate 4 is arranged in 6 periphery of bundle condenser, feed inlet 8, discharge port 9 in heat
Pump type pipe bundle drier two sides, waste gas outlet 10 are arranged above shell, material movement direction and heat pump fluid approach axis phase
Instead.
Heat pump fluid in heat pump unit is recycled in heat pump unit under the driving of heat pump compressor 3, heat pump work
Matter absorbs after the heat in nature air in evaporator 2 in cyclic process, and heat pump fluid is gas by liquid evaporation
Body is sent in bundle condenser 6 after compressor 2 further compression.In bundle condenser 6, the heat pump fluid of high temperature and pressure
The condenser heat of gas passes through the conduction for restraining tube wall and radiant heat transfer to the wet stock 11 outside bundle condenser 6, thus real
The purpose of existing dried material 11, while heat pump fluid condensation liquefaction, the expanded valve 1 of heat pump fluid after liquefaction turn again to evaporation
In device 2, so constantly recycle.
Material 11 enters in pipe bundle drier from the feed inlet 8 for being located at 5 side of shell, by being mounted in 6 periphery of bundle condenser
Shovelling plate 4 push material 11 to advance while material is taken up, until material 11 is pushed into discharge end from feed end, at this point, hot
Pump work substance enters bundle condenser 6 from discharge end axis hole with the direction opposite with material movement, and material 11 is dried, and is copying
Under the action of plate 4, material 11 is discharged from the discharge port 9 of the other side of shell 5, realizes continuous drying operation.
Embodiment two
Embodiment one and embodiment two are essentially identical, the difference is that 6 piping mode of bundle condenser uses circular row list
Tube side, and multiple center combs are set, suction exhaust gas fan can be connected on waste gas outlet 10.Pass through multiple center combs, Ke Yizeng
Add the heating surface area of material, improves dry materials efficiency.By inhaling exhaust gas fan, the water of dry materials generation can be taken away in time
Steam improves the drying efficiency of drying machine.
Embodiment three
Rotating mechanism 7 is connected with the central rotating shaft of bundle condenser 6 and shovelling plate 4, and adjustable speed variator is arranged in rotating mechanism 7.Pass through
Adjustable speed variator adjusts the speed of rotating mechanism, to control the speed of shovelling plate, reaches control Flow of Goods and Materials speed, may be implemented
The abundant drying of material.
As those skilled in the art, it should be noted that material movement direction can also be same with heat pump fluid approach axis
Phase.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common
Other modifications or equivalent replacement that technical staff makes technical solution of the present invention, without departing from technical solution of the present invention
Spirit and scope, be intended to be within the scope of the claims of the invention.
Claims (5)
1. a kind of heat-pump-type pipe bundle drier, including heat pump unit and pipe bundle drier unit, the heat pump unit is to be closed back
Road, heat pump unit include sequentially connected expansion valve (1), evaporator (2), compressor (3) and are total to pipe bundle drier unit
Bundle condenser (6), the heat pump fluid import of the expansion valve (1) and the heat pump fluid of bundle condenser (6) export and connect
It connects, the heat pump fluid outlet of the compressor (3) is connect with the heat pump fluid import of bundle condenser (6)；The tube bank drying
Machine unit include shell (5), shovelling plate (4), transmission mechanism (7), feed inlet (8), discharge port (9), waste gas outlet (10) and with
The shared bundle condenser (6) of heat pump unit, the bundle condenser (6) and shovelling plate (4) are installed in shell (5) inside, institute
Shovelling plate (4) setting is stated in bundle condenser (6) periphery, the feed inlet (8), discharge port (9) setting restrain drying in heat-pump-type
Machine two sides, waste gas outlet (10) setting is above shell (5), it is characterised in that: the bundle condenser (6) is used as heat pump unit
With the component of pipe bundle drier units shared, it is both the condenser of heat pump unit, while is the heater of pipe bundle drier unit,
The shell (5) and bundle condenser (6) form the material cavity for storing material (11).
2. a kind of heat-pump-type pipe bundle drier according to claim 1, it is characterised in that: material (11) direction of motion
It is opposite with heat pump fluid approach axis.
3. a kind of heat-pump-type pipe bundle drier according to claim 1, it is characterised in that: bundle condenser (6) cloth
Pipe mode uses circular arrangement single tube journey, and multiple center combs are arranged.
4. a kind of heat-pump-type pipe bundle drier according to claim 1, it is characterised in that: can on the waste gas outlet (10)
Exhaust gas fan is inhaled in connection.
5. a kind of heat-pump-type pipe bundle drier according to claim 1, it is characterised in that: the rotating mechanism (7) and pipe
The central rotating shaft of beam condenser (6) and shovelling plate (4) is connected, and adjustable speed variator is arranged in the rotating mechanism (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811592295.0A CN109442966A (en) | 2018-12-25 | 2018-12-25 | A kind of heat-pump-type pipe bundle drier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811592295.0A CN109442966A (en) | 2018-12-25 | 2018-12-25 | A kind of heat-pump-type pipe bundle drier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109442966A true CN109442966A (en) | 2019-03-08 |
Family
ID=65535541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811592295.0A Pending CN109442966A (en) | 2018-12-25 | 2018-12-25 | A kind of heat-pump-type pipe bundle drier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109442966A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011007404A (en) * | 2009-06-25 | 2011-01-13 | Tsukishima Kikai Co Ltd | Industrial heating device |
| FR2953006A1 (en) * | 2009-11-24 | 2011-05-27 | Vinci Environnement | INSTALLATION AND METHOD OF DRYING WATER LOADING PRODUCT |
| CN102759260A (en) * | 2012-07-12 | 2012-10-31 | 西安交通大学 | Lignite drying and upgrading system |
| CN105466174A (en) * | 2015-12-25 | 2016-04-06 | 孙发喜 | Vacuum tube bundle drying machine |
| CN205897824U (en) * | 2016-06-27 | 2017-01-18 | 宜兴市格兰特干燥浓缩设备有限公司 | Directly ally oneself with pipe bundle drier |
| CN108481899A (en) * | 2018-02-12 | 2018-09-04 | 西北大学 | A kind of thermally equilibrated backheating type air, which can be dried, utilizes method and system |
| CN208155014U (en) * | 2018-04-02 | 2018-11-27 | 上海敏建环保科技有限公司 | A kind of superheated steam tube bank drying machine |
| CN209623317U (en) * | 2018-12-25 | 2019-11-12 | 郑州万谷机械股份有限公司 | A kind of heat-pump-type pipe bundle drier |
-
2018
- 2018-12-25 CN CN201811592295.0A patent/CN109442966A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011007404A (en) * | 2009-06-25 | 2011-01-13 | Tsukishima Kikai Co Ltd | Industrial heating device |
| FR2953006A1 (en) * | 2009-11-24 | 2011-05-27 | Vinci Environnement | INSTALLATION AND METHOD OF DRYING WATER LOADING PRODUCT |
| CN102759260A (en) * | 2012-07-12 | 2012-10-31 | 西安交通大学 | Lignite drying and upgrading system |
| CN105466174A (en) * | 2015-12-25 | 2016-04-06 | 孙发喜 | Vacuum tube bundle drying machine |
| CN205897824U (en) * | 2016-06-27 | 2017-01-18 | 宜兴市格兰特干燥浓缩设备有限公司 | Directly ally oneself with pipe bundle drier |
| CN108481899A (en) * | 2018-02-12 | 2018-09-04 | 西北大学 | A kind of thermally equilibrated backheating type air, which can be dried, utilizes method and system |
| CN208155014U (en) * | 2018-04-02 | 2018-11-27 | 上海敏建环保科技有限公司 | A kind of superheated steam tube bank drying machine |
| CN209623317U (en) * | 2018-12-25 | 2019-11-12 | 郑州万谷机械股份有限公司 | A kind of heat-pump-type pipe bundle drier |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207958098U (en) | A kind of flow-circulating type Low Temperature Thermal sludge drier | |
| CN105466157B (en) | Used heat is used for the vacuum tube bank drying system of multiple-effect evaporation and pneumatic conveying drying | |
| CN105066665A (en) | Heat recovery heat pump device of drying room | |
| CN211601490U (en) | Heat pump type low-temperature coal slime drying system based on low-temperature heat pipe | |
| CN102506564A (en) | Condensation water residual heat first-effect flash evaporation natural air dehumidifying, preheating and drying baking oven system | |
| CN102294124B (en) | Spray drying method and device based on absorption heat pipe | |
| CN108426426A (en) | A kind of sludge dehumidification type multistage recuperation of heat anhydration system | |
| CN105466196A (en) | Double-effect vacuum tube bundle drying system | |
| CN102445066A (en) | Natural air dehydrating and preheating drying oven system adopting condensate water waste heat for two-effect flash evaporation | |
| CN102278869A (en) | Microwave energy-saving environmentally-friendly drying method and device of coal slime, lignite and medium minerals | |
| CN108895808A (en) | Heat pump air centralized processing type vermicelli drying device | |
| CN102650493B (en) | Device and technology for drying lignite by jointly using rotary steam tubes and high frequency | |
| CN209623317U (en) | A kind of heat-pump-type pipe bundle drier | |
| CN110260637A (en) | A kind of multipurpose heat pump drying machine | |
| CN202485343U (en) | Primary-effective flash natural air dehydrating, preheating and drying oven device by using condensate water waste heat | |
| CN205316850U (en) | Used heat is used for pneumatic drying's vacuum tube bank drying system | |
| CN105481219B (en) | Solar-heating hollow blade sludge drying device | |
| CN205482260U (en) | Economic benefits and social benefits vacuum tube bank drying system | |
| CN103743196B (en) | A kind of hot blast closed circulation highly effective drying energy saving technique and system | |
| CN109442966A (en) | A kind of heat-pump-type pipe bundle drier | |
| CN204478750U (en) | A kind of rotary kiln drying machine | |
| CN109282272A (en) | Superheated steam heat drying system and method based on absorption heat pump | |
| CN209214303U (en) | The vermicelli drying equipment of parallel heat pump hot-water heating system heating fresh air | |
| CN208720729U (en) | Heat pump air centralized processing type vermicelli drying device | |
| CN208419462U (en) | A kind of indirect heat-exchange rotation drying system of secondary steam residual heat recovery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |