CN104773778A - Horizontal type rotating blade evaporator - Google Patents

Horizontal type rotating blade evaporator Download PDF

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Publication number
CN104773778A
CN104773778A CN201510155515.3A CN201510155515A CN104773778A CN 104773778 A CN104773778 A CN 104773778A CN 201510155515 A CN201510155515 A CN 201510155515A CN 104773778 A CN104773778 A CN 104773778A
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China
Prior art keywords
blade
tubular shaft
annular
shell
blades
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CN201510155515.3A
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Chinese (zh)
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CN104773778B (en
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葛仕福
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Southeast University
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Southeast University
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Publication of CN104773778A publication Critical patent/CN104773778A/en
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Publication of CN104773778B publication Critical patent/CN104773778B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention discloses a horizontal type rotating blade evaporator comprising a shell, a hollow shaft and a plurality of blades which are connected with the hollow shaft. When in work, water vapor is fed into a transmission shaft and a jacket to heat a solution by virtue of an inner wall of a drying machine and the blades, water in the solution is evaporated, a plurality of propelling guide plates are arranged at the top ends of the blades, a scraping plate is arranged between two blades, the scraping plates are fixedly arranged on the shell, a dilute solution inlet is formed above one end of the shell, a concentrated solution outlet is formed below the other end of the shell, each blade is respectively welded on a blade base and is communicated with the hollow shaft, sealing grooves for installing blade sealing rings and a plurality of holes which are connected with a transmission rod are formed in left and right planes of each blade base, the blade bases are fixed with the hollow shaft by virtue of the transmission rod and a round screw nut, and sealing among the blade bases can be achieved by adopting the blade sealing rings. The horizontal type rotating blade evaporator disclosed by the invention is large in single equipment evaporation capacity, small in installed capacity, good in heat transfer performance and low in running cost, ensures that no scaling phenomenon is caused on a heat exchange surface, does not need chemical cleaning, and cannot cause any secondary pollution.

Description

Horizontal rotary blade vaporizer
Technical field
The invention belongs to a kind of vaporizer, be particularly useful for the evaporation of brine waste in Chemical Manufacture.
Background technology
At present, for the evaporation unit of brine waste in Chemical Manufacture, for preventing the fouling of waste water on heat-transfer surface, usually adopt pump feed evaporator and scraper evaporator; Pump feed evaporator needs to arrange high-power recycle pump, has that current consumption is large, pump blade is easy to wear and the defect such as the long easily blocking of pipeline; The scraping blade of scraper evaporator, speed of rotation is high, and for the brine waste having crystallization, scrape pad wear very large, equipment cannot normally run; And novel evaporation concentrator (ZL201210285407.4), adopt the rotary motion of heat-exchanging tube bundle, outer tube is made to have certain speed of relative movement with the waste water that need evaporate, scale formation greatly reduces, but the tube bank in rotary motion, side and liquid speed of relative movement larger, because tube pitch is less, constant speed of rotation, make tube bank head-on adhere to certain liquid with the back side, heat-transfer surface and liquid speed of relative movement less, heat transfer property is poor, also there will be a certain amount of fouling, therefore need matting after for some time, create secondary pollution.
Summary of the invention
Technical problem: the invention provides a kind of heat transfer coefficient high, evaporation capacity is large, and device fabrication cost is low, without any scale formation, without any secondary pollution, horizontal rotary blade vaporizer for brine waste.
Technical scheme: horizontal rotary blade vaporizer of the present invention, the multiple annular blade comprising setting tubular shaft in the enclosure, scraper plate and be arranged on described tubular shaft, the top board of annular blade arranges multiple propelling guide plate, and described scraper plate to be fixed on outer casing inner wall and to be arranged in the space between two adjacent annular blades.Annular blade by blade seat, be arranged on two side plates on blade seat and be positioned at the airtight hollow structure formed of top board of outer peripheral annular, blade inside is provided with the stiffening web be arranged on side plate, dividing plate and water collection sheet, described dividing plate one end is connected with top board, the other end is connected with blade seat, and described water collection sheet one end is connected with blade seat; In tubular shaft, be provided with blade admission water shoot with each annular blade corresponding position, the both ends open of described blade admission water shoot is all also communicated with by the opening on blade seat and blade inside through the tube wall of tubular shaft.Blade admission water shoot middle is provided with middle closure plate, blade admission water shoot is divided into two pipeline sections be isolated from each other, on the open-ended tube wall be positioned between dividing plate and water collection sheet of one of them pipeline section, and on the tube wall closing on middle closure plate, be provided with the impeller discharge mouth of a river be communicated with tubular shaft; On another pipeline section of blade admission water shoot, the tube wall closing on middle closure plate is provided with the blade steam inlet be communicated with tubular shaft.
In preferred version of the present invention, the impeller discharge mouth of a river is vertical with tubular shaft to be arranged, and blade steam inlet is parallel with tubular shaft and arrange back to steam flow.
In preferred version of the present invention, the blade seat of annular blade is enclosed within tubular shaft successively, blade seat side is provided with sealing groove and multiple open holes, the tubular shaft plug of end is provided with corresponding open holes, top blade seat is fixedly connected with by the driving rod be arranged in open holes with tubular shaft plug, in sealing groove between two adjacent blades seats, blade sealing-ring is installed, realize the sealing between annular blade, open holes on two adjacent blades seats is corresponding, and is fixedly connected with by the driving rod be arranged on wherein.
In preferred version of the present invention, tubular shaft one end is connected with motor reducer, and the other end is fixed swivel joint with interior pipe and is connected.
In preferred version of the present invention, be provided with dilute solution entrance above shell, below is provided with strong solution outlet.
Horizontal rotary blade vaporizer of the present invention, the waste water that need evaporate is outside heat-transfer surface, and thermal source, in heat-transfer surface, does not need to adopt powerful forced circulation pump to solve heat-transfer surface scale problems, unlike, head on and the fouling at the back side and the problem of poor heat transfer for solving the heat-exchanging tube bundle adopting tube bank rotation (patent ZL201210285407.4) to occur, the present invention adopts one group of vertical annular blade as evaporator heat exchange face, thermal source is inner at blade, waste water evaporates outward at blade, the rotary motion of annular blade, blade is made all to have certain speed of relative movement with waste water Anywhere, heat transfer property improves, in addition, between vertical two annular blades, also be provided with scraper plate, scale removal performance improves greatly, and revolve and turn around, strong disturbance is once on heat-transfer surface for scraper plate, substantially increase heat transfer coefficient.In general, if annular blade adopts welding process to be connected with tubular shaft, blade pitch is large, and the heat interchanging area that can arrange in unit volume is less than patent ZL201210285407.4 and restrains area, and the equipment volume of processed in units amount is large, manufacturing cost is high.For this reason, the feature less to annular blade rotational resistance according to liquid, the connection of the present invention's annular blade and tubular shaft adopts driving rod and round nut mode of connection, blade pitch can be greatly reduced, the heat interchanging area that can arrange in unit volume can reach the tube bank area of patent ZL201210285407.4, add sealing material in sealing groove on blade seat, the sealing between annular blade and tubular shaft can be realized.
Beneficial effect: compared with prior art, tool of the present invention has the following advantages:
1, pump feed evaporator, adopt tubular type evaporation, thermal source is outside pipe, by the waste water that evaporates in pipe, for preventing waste water at in-tube fouling, waste water needs certain flow velocity, high-power recycle pump is set usually, compared with pump feed evaporator, the present invention, without the need to forced circulation pump, also thoroughly can solve scale problems, therefore, installed capacity is little, and running cost is low, there is not the defects such as the long easily blocking of the easy to wear and pipeline of pump blade;
2, scraper evaporator, thermal source is located on the external jacket of shell, high speed centrifugation power is adopted to be arranged on the outer casing inner wall of vaporizer by the waste water evaporated, to go into film, the scraping blade speed of rotation of scraper evaporator is high, for the brine waste having crystallization, scrape pad wear very large, compared with scraper evaporator, speed of rotation of the present invention reduces greatly, only has the 1/10---1/20 of scraper evaporator, without wear problem, meanwhile, scraper evaporator only has outer wall as heat-transfer surface, separate unit heat-transfer surface is minimum, is generally up to 100m 2, a large amount of wastewater treatments cannot be used for, and separate unit heat-transfer surface of the present invention can reach 800m 2.
3, novel evaporation concentrator (ZL201210285407.4), also be adopt tubular type evaporation, but thermal source is in pipe, by the waste water that evaporates outside pipe, adopt the rotary motion of heat-exchanging tube bundle, outer tube is made to have certain speed of relative movement with the waste water that need evaporate, to reduce scale formation, in contrast, the present invention adopts one group of vertical annular blade as evaporator heat exchange face, between vertical two annular blades, be provided with scraper plate, scale removal performance is improved, there is no the waste liquid that matting produces, also enhance heat transfer, in addition, the present invention devises the mode of connection of annular blade and tubular shaft, greatly reduce blade pitch, the heat interchanging area that single device can be arranged is suitable with patent ZL201210285407.4, compensate for vertical ring-shaped blade of the present invention as the little deficiency of evaporator heat exchange face area.
Accompanying drawing explanation
Fig. 1 is present system schematic diagram.
Fig. 2 is tubular shaft of the present invention and paddle blade structure schematic diagram.
Fig. 3 is blade inner structure schematic diagram of the present invention.
Fig. 4 is blade admission drain structure schematic diagram, and Fig. 4 a is front view (from the projection of Fig. 4 b right direction), and Fig. 4 b is left view.
Fig. 5 is the schematic diagram that is in transmission connection between blade seat, and Fig. 5 a is front view, and Fig. 5 b is the sectional view (from the projection of Fig. 5 a left direction arrow) of Fig. 5 a.
Have in figure: 1 motor reducer, 2 tubular shafts, 3 annular blades, 4 dilute solution entrances, 5 scraper plates, 6 steam drains, 7 packing seals, 8 steam inlets, 9 water port, 10 strong solution outlets, 11 chuck water port, 12 chucks, 13 chuck steam inlets, 14 tubular shaft plugs, 15 blade admission water shoots, 16 driving rods, 17 advance guide plate, 18 blade sealing-rings, 19 propeller shank sealing-rings, 20 glands, 21 round nuts, 22 tubular shaft right connectors, the fixing swivel joint of pipe in 23, 24 siphon elbows, 25 stiffening webs, 26 dividing plates, 27 water collection sheets, 28 blade seats, the 29 impeller discharge mouths of a river, closure plate in the middle of 30 blade admission water shoots, 31 blade steam inlets, 32 vapour compressors, 33 side plates, 34 top boards, 35 shells.
Embodiment
Below in conjunction with embodiment and Figure of description, the present invention is further illustrated.
Embodiment 1
A kind of horizontal rotary blade vaporizer is by shell 35, tubular shaft 2 and the multiple annular blade 3 be connected on tubular shaft 2 form, tubular shaft 2 horizontal positioned, the rotary motion under the drive of tubular shaft 2 of each annular blade, scraper plate 5 is established between two annular blades 3, scraper plate is fixed on shell 35, multiple propelling guide plate 17 is established on annular blade 3 top, tubular shaft 2 connects with tubular shaft plug 14, tubular shaft plug 14 connects with motor reducer 1, the swivel joint 23 that tubular shaft 2 the other end and interior pipe are fixed connects, swivel joint 23 is provided with steam inlet 8 and condensate drain mouth 9, shell 35 establishes dilute solution entrance 4 above one end, strong solution is established to export 10 below the other end.
Be connected in annular blade 3 on tubular shaft 2 by left and right sides plate 33, top board 34 and the airtight composition of blade seat 28, inside establish stiffening web 25, dividing plate 26 and water collection sheet 27, holes is provided with between dividing plate 26 and water collection sheet 27 and on the blade seat 28 on opposite, communicate with the blade admission water shoot 15 be connected on tubular shaft 2, blade seat about 28 two plane is arranged sealing groove and multiple hole be connected with driving rod 16 that blade sealing-ring 18 is installed, Far Left annular blade 3 is connected by driving rod 16 with tubular shaft plug 14, rightmost annular blade 3 is fixed by round nut 21 and tubular shaft 2, employing blade sealing-ring 18 realizes the sealing between annular blade 3, the water vapor guaranteeing in tubular shaft 2 and annular blade 3 can not be leaked to by the solution that evaporates.
Blade admission water shoot 15, centre is provided with middle closure plate 30, pipe near middle closure plate 30 is upper and lower is respectively equipped with the impeller discharge mouth of a river 29 and blade steam inlet 31, and the impeller discharge mouth of a river 29 is vertical with tubular shaft 2, and blade steam inlet 31 is parallel with tubular shaft 2 and back to steam flow.
Embodiment 2
Vaporizer is sent into from dilute solution entrance 4, in vaporizer, solution heats by annular blade 3 and is evaporated, the water vapor evaporated, discharged by steam drain 6, enter vapour compressor 32, the water vapor after boosting heats up is as vaporizer thermal source, and a part sends into the chuck steam inlet 13 of chuck 12, heat chuck 12, water of condensation is discharged by being arranged on chuck 12 water port 11 bottom; Another part is sent in tubular shaft 2 through the steam inlet 8 of swivel joint 23, each annular blade 3 is entered by blade steam inlet 31, dilute solution is heated, strong solution (being entrained with crystal salt) exports 10 by strong solution and discharges, axle plug 14 (being usually connected with motor reducer 1) is established in tubular shaft 2 one end, tubular shaft 2 the other end arranges siphon elbow 24 and condensed water discharge outlet 9, is discharged by water of condensation.
Adopt vapour compressor 32, the dilute solution entering vaporizer is separated into and exports 10 strong solutions of discharging and the water of condensation of being discharged by swivel joint 23 water port 9 and chuck water port 12 by strong solution, achieve the evaporation of dilute solution with concentrated.
Export 10 strong solutions of discharging and the water of condensation of being discharged by swivel joint 23 water port 9 and chuck water port 12 by strong solution, temperature is higher, and the dilute solution being in envrionment temperature can be used to carry out recovery of heat, to improve thermo-efficiency further, reduces running cost.
The working process of apparatus of the present invention is as follows:
Horizontal rotary blade vaporizer tubular shaft 2 is driven by motor reducer 1, and dilute solution sends into vaporizer from dilute solution entrance 4.The water vapor evaporated, is discharged by steam drain 6, enters vapour compressor 32, and the water vapor after boosting heats up is as vaporizer thermal source, and a part sends into the chuck steam inlet 13 of chuck 12, and heat chuck, water of condensation is discharged by chuck water port; Another part is sent in tubular shaft through the steam inlet 8 of swivel joint 23, enters each blade, heat dilute solution by blade steam inlet 31.When blade closure plate 26 goes to top, the water of condensation produced after steam cooling in blade is discharged by the impeller discharge mouth of a river 29, and when blade closure plate 26 goes to below, the impeller discharge mouth of a river 29 evaporated condensation water is discharged, and plays the effect of blade steam inlet.Be located at the propelling guide plate 17 at annular blade 3 top, salt crystallization in solution gone out is pushed ahead, strong solution (being entrained with crystal salt) exports 10 by strong solution and discharges, axle plug 14 (being usually connected with motor reducer 1) is established in tubular shaft 2 one end, tubular shaft 2 the other end arranges siphon elbow 24 and condensed water discharge outlet 9, is discharged by water of condensation.Between two disk blades, be provided with scraper plate 5, remove in time dirt or the crystal salt of blade surface, the blade surface fluid of disturbance simultaneously, enhances heat transfer.
Annular blade 3 on tubular shaft 2 is by left and right sides plate 33, top board 34 and the airtight composition of blade seat 28, stiffening web 25 is established in blade, dividing plate 26 and water collection sheet 27, holes is provided with between dividing plate 26 and water collection sheet 27 and on the blade seat 28 on opposite, communicate with the blade admission water shoot 15 be connected on tubular shaft 2, blade seat about 28 two plane is arranged sealing groove and multiple hole be connected with driving rod 16 that blade sealing-ring 18 is installed, Far Left annular blade 3 is connected by driving rod 16 with tubular shaft plug 14, rightmost blade 3 is fixed by round nut 21 and tubular shaft 2, employing blade sealing-ring 18 realizes the sealing between annular blade 3, by driving rod 16 and sealing 18 design, each annular blade 3 is independently component before being connected with tubular shaft 2, i.e. biside plate 33, top board 34, blade seat 28, stiffening web 25, dividing plate 26 and water collection sheet 27 have been linked to be an entirety, so the spacing between blade can do to obtain very little (such as 70mm), if but annular blade 3 is directly welded on tubular shaft 2, by the restriction in welding space, spacing between blade is greater than 150mm, the blade quantity that can arrange in unit volume doubles many, heat interchanging area for evaporating increases, unit volume and single device steam output large.
Middle closure plate 30 is provided with in the middle of blade admission water shoot 15, pipe near middle closure plate 30 is upper and lower is respectively equipped with the impeller discharge mouth of a river 29 and blade steam inlet 31, the impeller discharge mouth of a river 29 is vertical with tubular shaft 2, and blade steam inlet 31 is parallel with tubular shaft 2 and back to steam flow.The impeller discharge mouth of a river, close to tubular shaft center, because the condensed water level in tubular shaft can not arrive axle center, so there will not be the water of condensation in tubular shaft to pour in down a chimney in blade, also there will not be the water flowed out from blade directly to enter blade steam inlet and gets back to blade.
Horizontal rotary blade vaporizer of the present invention, the Rigidity and strength of tubular shaft is high, and installed capacity is little, and running cost is low, and heat-transfer surface is without scale formation, and good heat-transfer, single device steam output is large.
Above-described embodiment is only the preferred embodiment of the present invention; be noted that for those skilled in the art; under the premise without departing from the principles of the invention; some improvement and equivalent replacement can also be made; these improve the claims in the present invention and are equal to the technical scheme after replacing, and all fall into protection scope of the present invention.

Claims (5)

1. a horizontal rotary blade vaporizer, it is characterized in that, the multiple annular blade (3) that this vaporizer comprises the tubular shaft (2) be arranged in shell (35), scraper plate (5) and is arranged on described tubular shaft (2), the top board (34) of annular blade (3) arranges multiple propelling guide plate (17), and described scraper plate (5) to be fixed on shell (35) inwall and to be arranged in the space between two adjacent annular blades (3);
Described annular blade (3) by blade seat (28), be arranged on two side plates (33) on blade seat (28) and be positioned at the airtight hollow structure formed of top board (34) of outer peripheral annular, the stiffening web (25) be arranged on side plate (33), dividing plate (26) and water collection sheet (27) is provided with in blade (3) inside, described dividing plate (26) one end is connected with top board (34), the other end is connected with blade seat (28), and described water collection sheet (27) one end is connected with blade seat (28); In tubular shaft (2), be provided with blade admission water shoot (15) with each annular blade (3) corresponding position, the both ends open of described blade admission water shoot (15) is all also communicated with by the opening on blade seat (28) and blade (3) inside through the tube wall of tubular shaft (2);
Described blade admission water shoot (15) middle is provided with middle closure plate (30), blade admission water shoot (15) is divided into two pipeline sections be isolated from each other, on the open-ended tube wall be positioned between dividing plate (26) and water collection sheet (27) of one of them pipeline section, and on the tube wall closing on middle closure plate (30), be provided with the impeller discharge mouth of a river (29) be communicated with tubular shaft (2); On another pipeline section of blade admission water shoot (15), the tube wall closing on middle closure plate (30) is provided with the blade steam inlet (31) be communicated with tubular shaft (2).
2. horizontal rotary blade vaporizer according to claim 1, it is characterized in that, the described impeller discharge mouth of a river (29) is vertical with tubular shaft (2) to be arranged, and blade steam inlet (31) is parallel with tubular shaft (2) and arrange back to steam flow.
3. horizontal rotary blade vaporizer according to claim 1 and 2, it is characterized in that, the blade seat (28) of described annular blade (3) is enclosed within tubular shaft (2) successively, blade seat (28) side is provided with sealing groove and multiple open holes, the tubular shaft plug (14) of end is provided with corresponding open holes, top blade seat (28) is fixedly connected with by the driving rod (16) be arranged in open holes with tubular shaft plug (14), in sealing groove between two adjacent blades seats (28), blade sealing-ring (18) is installed, realize the sealing between annular blade (3), open holes on two adjacent blades seats (28) is corresponding, and be fixedly connected with by the driving rod (16) be arranged on wherein.
4. horizontal rotary blade vaporizer according to claim 1 and 2, is characterized in that, described tubular shaft (2) one end is connected with motor reducer (1), and the other end and interior pipe are fixed swivel joint (23) and be connected.
5. horizontal rotary blade vaporizer according to claim 1 and 2, is characterized in that, described shell (35) top is provided with dilute solution entrance (4), and below is provided with strong solution outlet (10).
CN201510155515.3A 2015-04-02 2015-04-02 Horizontal rotary blade vaporizer Expired - Fee Related CN104773778B (en)

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Application Number Priority Date Filing Date Title
CN201510155515.3A CN104773778B (en) 2015-04-02 2015-04-02 Horizontal rotary blade vaporizer

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Application Number Priority Date Filing Date Title
CN201510155515.3A CN104773778B (en) 2015-04-02 2015-04-02 Horizontal rotary blade vaporizer

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CN104773778B CN104773778B (en) 2016-07-06

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108328682A (en) * 2018-04-23 2018-07-27 江苏景南环保科技有限公司 Vertical rotating saline water evaporator
CN112960722A (en) * 2021-01-27 2021-06-15 陈庆 Seawater distillation desalination equipment capable of comprehensively utilizing geothermal energy
CN115183534A (en) * 2022-06-23 2022-10-14 华能国际电力股份有限公司大连电厂 Hollow blade type drying machine
CN115300920A (en) * 2022-04-20 2022-11-08 安徽雨辰机电制造有限公司 Integrated evaporation drying device for viscous slurry with particles

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0691102A (en) * 1992-09-11 1994-04-05 Konica Corp Evaporation concentrating device in vacuum heat pump system
CN1654377A (en) * 2004-12-28 2005-08-17 东南大学 Swirl spouting device for drying sludge
CN101082465A (en) * 2007-05-15 2007-12-05 东南大学 Rotating heat conducting sludge drying mechanism
CN201058838Y (en) * 2007-05-30 2008-05-14 东南大学 Heat-conductive sludge drying apparatus

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0691102A (en) * 1992-09-11 1994-04-05 Konica Corp Evaporation concentrating device in vacuum heat pump system
CN1654377A (en) * 2004-12-28 2005-08-17 东南大学 Swirl spouting device for drying sludge
CN101082465A (en) * 2007-05-15 2007-12-05 东南大学 Rotating heat conducting sludge drying mechanism
CN201058838Y (en) * 2007-05-30 2008-05-14 东南大学 Heat-conductive sludge drying apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108328682A (en) * 2018-04-23 2018-07-27 江苏景南环保科技有限公司 Vertical rotating saline water evaporator
CN112960722A (en) * 2021-01-27 2021-06-15 陈庆 Seawater distillation desalination equipment capable of comprehensively utilizing geothermal energy
CN115300920A (en) * 2022-04-20 2022-11-08 安徽雨辰机电制造有限公司 Integrated evaporation drying device for viscous slurry with particles
CN115300920B (en) * 2022-04-20 2024-01-16 安徽雨辰机电制造有限公司 Integrated evaporation drying device for slurry with particulate matter viscosity
CN115183534A (en) * 2022-06-23 2022-10-14 华能国际电力股份有限公司大连电厂 Hollow blade type drying machine
CN115183534B (en) * 2022-06-23 2024-04-19 华能国际电力股份有限公司大连电厂 Hollow blade type desiccator

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