CN109489440A - A kind of evaporator that can utilize waste heat - Google Patents
A kind of evaporator that can utilize waste heat Download PDFInfo
- Publication number
- CN109489440A CN109489440A CN201811540261.7A CN201811540261A CN109489440A CN 109489440 A CN109489440 A CN 109489440A CN 201811540261 A CN201811540261 A CN 201811540261A CN 109489440 A CN109489440 A CN 109489440A
- Authority
- CN
- China
- Prior art keywords
- fixedly connected
- square tube
- evaporator
- inlet pipe
- dedusting
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
- F22B1/1892—Systems therefor not provided for in F22B1/1807 - F22B1/1861
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of evaporators that can utilize waste heat, including dust inlet pipe, the input end of dedusting square tube and evaporator dust inlet pipe flanged joint dedusting square tube, evaporator includes shell, the hot fluid inlet pipe being fixedly welded with shell, hot fluid outlet pipe, cold fluid inlet pipe, cold fluid outlet pipe and spiral heat exchange tube, the outlet end of hot fluid inlet pipe flanged joint dedusting square tube, dedusting square tube inner tubal wall is fixedly welded filter screen frame, filter screen frame inner wall is fixedly connected with strainer, strainer is curried close to the side of dust inlet pipe equipped with what is cleared up it, curry that vertical direction is done in dedusting square tube is mobile with sliding over, the present invention carries out heat exchange with cold water in evaporator using hot dust, obtained hot steam is for the use that produces and live, and soot dust granule is filtered out by strainer, evaporator is avoided to block, heat utilization rate is high, knot Structure is concise, easy to operate, energy conservation and environmental protection.
Description
Technical field
The present invention relates to vaporizer technology field, specially a kind of evaporator that can utilize waste heat.
Background technique
Due to energy shortage, as energy conservation is further carried out.Various novel, the advanced type of furnace of energy conservation is gradually improved, and
Using being decreased obviously stove radiation loss after the high-quality thermal insulation material such as refractory fibre.It is strong using advanced burner
Burning is changed, has reduced imperfect combustion amount, air-fuel ratio also tends to rationally, the Mist heat recovering however reduction exhaust gas heat loss becomes estranged
Technology be still in progress it is unhappy.In order to further increase the thermal efficiency of kiln, achieve the purpose that energy-saving, Mist heat recovering
It is an important energy saving way.
Application No. is: 201020188330.5 Chinese utility model discloses a kind of energy-efficient waste heat recycling evaporation
Device is made of pressure vessel, heat pipe and smoke box；The cold end of heat pipe securely connects in pressure vessel and with pressure vessel sealing,
In smoke box, smoke box entrance is connected with the bypass of kiln tail gas flue in the hot end of heat pipe, and the outlet of smoke box is connected with air-introduced machine.It should
Utility model lacks to flue dust device filter device, and evaporator is readily incorporated flue dust, evaporator pipeline is caused to block, and reduces evaporation
Device exchange capability of heat.
Summary of the invention
The purpose of the present invention is to provide a kind of evaporators that can utilize waste heat, to solve to propose in above-mentioned background technique
The problem of.
To achieve the above object, the invention provides the following technical scheme: a kind of can utilize the evaporator of waste heat, including cigarette
The input end of dust inlet pipe flanged joint dedusting square tube, the evaporator packet described in dust and gas inlet pipe, dedusting square tube and evaporator
Shell is included, hot fluid inlet pipe, hot fluid outlet pipe, cold fluid inlet pipe, cold fluid outlet pipe and the spiral heat exchange being fixedly welded with shell
Pipe, the outlet end of the hot fluid inlet pipe flanged joint dedusting square tube, the dedusting square tube inner tubal wall are fixedly welded filter screen frame, institute
It states filter screen frame inner wall and is fixedly connected with strainer, the strainer is curried close to the side of dust inlet pipe equipped with what is cleared up it,
It is described to curry that vertical direction is done in dedusting square tube is mobile with sliding over.
Preferably, it is fixedly connected with support at the top of the dedusting square tube, the support is fixedly connected with the front and rear cover of cylinder, institute
It states the piston rod of cylinder and is fixedly connected with push plate after dedusting square tube, the push plate is fixedly connected with sliding sleeve, in the dedusting square tube
Lower inner wall wears and is fixedly connected guide rod, the guide rod socket and the sliding sleeve that is slidably matched.
Preferably, described curry is formed by fixedly connecting by brush and comb handle portion, and the brush is abutted against with strainer, institute
It states comb handle portion and is fixedly connected with loop bar, the sliding sleeve fixed operating sleeve arm, the set arm leads to equipped with the rectangle through its top and bottom sidewall
Hole is that rectangular through-hole is equipped with gag lever post, the gag lever post sliding fiting sleeve arm, and the set arm is fixedly connected with one end of spring,
The other end of the spring is fixedly connected with gag lever post, and the loop bar is fixedly connected with gag lever post after protruding into set arm.
Preferably, dedusting square tube bottom is equipped with through-hole, and the through-hole is equipped with integrated box, is equipped at the top of the integrated box
With its integrally formed male-pipe, the center of the male-pipe is located at the underface curried, and male-pipe screw thread connects
Connect dedusting square tube.
Preferably, the cold fluid inlet pipe is fixedly connected with one end of spiral heat exchange tube, the spiral heat exchange after shell
The other end of pipe is fixedly connected with cold fluid outlet pipe, is equipped with the agitating shaft with stirring blade, institute at the spiral heat exchange tube center
It states agitating shaft and is driven by driving device and rotated.
Preferably, the driving device includes motor cabinet, and the motor and gear reduction unit that are fixedly connected with motor cabinet,
The motor cabinet is bolted shell, and the output shaft of the motor passes through the input terminal of toothed belt transmission connection gear speed reducer,
The output end of the gear reduction unit is fixedly connected with agitating shaft by shaft coupling, and the agitating shaft is fixedly connected by holding screw
Axle sleeve is stirred, the stirring axle sleeve is fixedly connected with three stirring blades, and three stirring blades uniformly divide about agitating shaft in circumferential
Cloth, and stirring blade surface is coated with preventing dust adhesive coating material.
Compared with prior art, the beneficial effects of the present invention are:
1. the present invention using hot dust in evaporator with cold water carry out heat exchange, obtained hot steam for production with
Life uses, and filters out soot dust granule by strainer, and evaporator is avoided to block, and heat utilization rate is high, and structure is concise, operates
Simply, energy conservation and environmental protection；
2. spring is always that gag lever post provides pretightning force to strainer direction so that loop bar push brush always with strainer
It abuts against, is greatly improved and curries cleaning strainer effect, reduce maintenance；
3. dust can be contacted sufficiently with spiral heat exchange tube under the agitation of three stirring blades, heat exchange efficiency is improved,
Dust waste heat recovery volume is improved, stirring blade surface is coated with preventing dust adhesive coating material, effectively prevent tar in hot dust
Equal stickums are adhered to stirring blade.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is dedusting rhs-structure schematic diagram in the present invention；
Fig. 3 is sliding sleeve in the present invention, loop bar and set arm configuration schematic diagram；
Fig. 4 is that axle sleeve and stirring blade structural schematic diagram are stirred in the present invention.
In figure: 1 dust inlet pipe, 2 dedusting square tubes, 3 evaporators, 301 shells, 302 hot fluid inlet pipes, 303 hot fluids go out
Pipe, 304 cold fluid inlet pipes, 305 cold fluid outlet pipes, 306 spiral heat exchange tubes, 4 filter screen frames, 5 strainers, 6 curry, 7 sliding sleeves, 8 supports,
9 cylinders, 10 push plates, 11 guide rods, 12 loop bars, 13 sets of arms, 14 rectangular through-holes, 15 gag lever posts, 16 springs, 17 integrated boxes, 18 stirrings
Axis, 19 stirring axle sleeves, 20 stirring blades, 21 motor cabinets, 22 motors, 23 gear reduction units.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The present invention provides a kind of technical solution referring to FIG. 1 to FIG. 4: a kind of evaporator that can utilize waste heat, including cigarette
The input end of 3 dust inlet pipe flanged joint dedusting square tube of dust and gas inlet pipe 1, dedusting square tube 2 and evaporator, evaporator 3 include shell
Body 301, the hot fluid inlet pipe 302 being fixedly welded with shell 301, hot fluid outlet pipe 303, cold fluid inlet pipe 304, cold fluid outlet pipe
305 and spiral heat exchange tube 306, the outlet end of 302 flanged joint dedusting square tube 2 of hot fluid inlet pipe, 2 inner tubal wall of dedusting square tube fix
Filter screen frame 4 is welded, 4 inner wall of filter screen frame is fixedly connected with strainer 5, and strainer 5 is equipped with close to the side of dust inlet pipe 1 and carries out clearly to it
Reason curries 6, curries 6 and does vertical direction movement in dedusting square tube 2 with sliding sleeve 7.
Support 8 is fixedly connected at the top of dedusting square tube 2, support 8 is fixedly connected with the front and rear cover of cylinder 9, the piston rod of cylinder 9
Be fixedly connected with push plate 10,2 top fixed connection and sealing circle of dedusting square tube after dedusting square tube 2, sealing ring be tightly sleeved and
Be slidably matched the piston rod of cylinder 9, on the one hand sealing ring avoids dust from escaping from dedusting square tube 2, on the other hand reduces cigarette
Dust and gas thermal loss.
Push plate 10 is fixedly connected with sliding sleeve 7, and about 2 inner wall of dedusting square tube wears and be fixedly connected guide rod 11, and guide rod 11 is socketed
And be slidably matched sliding sleeve 7.
It curries 6 to be formed by fixedly connecting by brush and comb handle portion, brush is abutted against with strainer 5, and comb handle portion is fixedly connected
Loop bar 12, as shown in figure 3, in the present embodiment, 7 fixed operating sleeve arm 13 of sliding sleeve, set arm 13 is equipped with through its top and bottom sidewall
Rectangular through-hole 14 is that rectangular through-hole 14 is equipped with gag lever post 15,15 sliding fiting sleeve arm 13 of gag lever post, and gag lever post 15 is limited in
It covering in arm 13, and can only move linearly along 14 place plane of rectangular through-hole, set arm 13 is fixedly connected with one end of spring 16,
The other end of spring 16 is fixedly connected with gag lever post 15, and loop bar 12 is fixedly connected with gag lever post 15 after protruding into set arm 13.Loop bar 12 is installed
When with set arm 13, one end spring 16 is chosen, when which guarantees that gag lever post 15 is in far from 7 state of sliding sleeve, spring 16 is also located
In compressive state, spring 16 is always that gag lever post 15 provides pretightning force to 5 direction of strainer, so that loop bar 12 pushes brush to begin
It is abutted against eventually with strainer 5.
2 bottom of dedusting square tube is equipped with through-hole, and through-hole is equipped with integrated box 17, is equipped at the top of integrated box 17 integrally formed with it
Male-pipe, the center of male-pipe is positioned at the underface for currying 6, and male-pipe is threadedly coupled dedusting square tube 2.
As shown in Figure 1, cold fluid inlet pipe 304 is fixedly connected with one end of spiral heat exchange tube 306, spiral after shell 301
The other end of heat exchanger tube 306 is fixedly connected with cold fluid outlet pipe 305, is equipped at 306 center of spiral heat exchange tube and has stirring blade 20
Agitating shaft 18, agitating shaft 18 by driving device drive rotate.
Driving device includes motor cabinet 21, and the motor 22 and gear reduction unit 23 that are fixedly connected with motor cabinet 21, electricity
Base 21 is bolted shell 301, and the output shaft of motor 22 passes through the input terminal of toothed belt transmission connection gear speed reducer 23, tooth
The output end of wheel speed reducer 23 is fixedly connected with agitating shaft 18 by shaft coupling.301 top fixed connection and sealing bearing of shell, sealing
Bearing is interference fitted agitating shaft 18, reduces dust evolution, improves waste heat recovery rate.Agitating shaft 18 connects by the way that holding screw is fixed
Stirring axle sleeve 19 is connect, stirring axle sleeve 19 is fixedly connected with three stirring blades 20, and three stirring blades 20 are in ring about agitating shaft 20
To being uniformly distributed.
After starting motor 22, motor 22 drives three stirring blades 20 to rotate, under the agitation of three stirring blades 20, cigarette
Dust and gas can be contacted sufficiently with spiral heat exchange tube 306, improve heat exchange efficiency, improve dust waste heat recovery volume.
20 surface of stirring blade is coated with preventing dust adhesive coating material, and preventing dust adhesive coating material is based on inorganic polymer
Interpenetrating net polymer is as film forming matter, and siliceous inorganic polymer changes as main chain, high temperature grafting organic polymer in solution
Property resin, the more blocks for obtaining being alternately arranged composition graft inorganic-organic chelated polymer, prevent tar etc. in hot dust
Stickum is adhered to stirring blade 20.
Working principle: flue dust air pipe is connected to dust inlet pipe 1, and hot dust initially enters in dedusting square tube 2, and with
Strainer 5 is in contact, and is filtered out soot dust granule.Cylinder 9 uses Si Maite double-acting cylinder, the rod chamber and rodless cavity of cylinder 9
Respectively there is one to connect port, controlled with a two-position five-way list electric control solenoid valve, solenoid valve is electrically connected time controller, passes through electricity
The piston rod of magnet valve control cylinder 9 stretches, and after starting cylinder 9, piston rod can push push plate 10 to move up and down, thus band
Dynamic sliding sleeve 7 does vertical direction movement with currying 6 in dedusting square tube 2, and the particle of the adherency of strainer 5 can be removed by currying 6, realizes filter
Net 5 " regeneration " avoids the effectively circulation aperture of strainer 5 from becoming smaller and causes the reduction of flue dust gas velocity.
In shell 301, cold liquid is entered in spiral heat exchange tube 306 from cold fluid inlet pipe 304 with tangential direction, filtered
Hot dust carries out heat exchange, cold liquid endothermic gasification and finally from the outflow of cold fluid outlet pipe 305, and the dust after heat exchange from
Hot fluid outlet pipe 303 flows out, and finally enters hot fluid outlet pipe 303.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. one kind can utilize the evaporator of waste heat, including dust inlet pipe (1), dedusting square tube (2) and evaporator (3), special
Sign is: the input end of the dust inlet pipe flanged joint dedusting square tube, the evaporator (3) includes shell (301), with shell
Hot fluid inlet pipe (302) that body (301) is fixedly welded, hot fluid outlet pipe (303), cold fluid inlet pipe (304), cold fluid outlet pipe
(305) and spiral heat exchange tube (306), the outlet end of hot fluid inlet pipe (302) the flanged joint dedusting square tube (2) are described to remove
Dirt square tube (2) inner tubal wall is fixedly welded filter screen frame (4), and filter screen frame (4) inner wall is fixedly connected strainer (5), the strainer (5)
Side close to dust inlet pipe (1) is curried (6) equipped with what is cleared up it, described to curry (6) with sliding sleeve (7) in dedusting side
It is mobile that vertical direction is done in pipe (2).
2. the evaporator that one kind according to claim 1 can utilize waste heat, it is characterised in that: the dedusting square tube (2)
Top is fixedly connected support (8), and the support (8) is fixedly connected with the front and rear cover of cylinder (9), the piston rod of the cylinder (9)
It is fixedly connected after dedusting square tube (2) push plate (10), the push plate (10) is fixedly connected sliding sleeve (7), the dedusting square tube (2)
Upper and lower inner wall wears and is fixedly connected guide rod (11), guide rod (11) socket and the sliding sleeve that is slidably matched (7).
3. the evaporator that one kind according to claim 1 can utilize waste heat, it is characterised in that: curry (6) are by hair
Brush portion and comb handle portion are formed by fixedly connecting, and the brush is abutted against with strainer (5), and the comb handle portion is fixedly connected with loop bar
(12), sliding sleeve (7) the fixed operating sleeve arm (13), the set arm (13) are equipped with the rectangular through-hole through its top and bottom sidewall
It (14), is that rectangular through-hole (14) is equipped with gag lever post (15), gag lever post (15) the sliding fiting sleeve arm (13), the set arm
(13) it is fixedly connected with one end of spring (16), the other end of the spring (16) is fixedly connected with gag lever post (15), the loop bar
(12) gag lever post (15) are fixedly connected with after protruding into set arm (13).
4. the evaporator that one kind according to claim 1 can utilize waste heat, it is characterised in that: the dedusting square tube (2)
Bottom is equipped with through-hole, and the through-hole is equipped with integrated box (17), is equipped with and its integrally formed outer spiral shell at the top of the integrated box (17)
Line pipe, the center of the male-pipe is located at the underface for currying (6), and male-pipe is threadedly coupled dedusting square tube (2).
5. the evaporator that one kind according to claim 1 can utilize waste heat, it is characterised in that: the cold fluid inlet pipe
(304) one end of spiral heat exchange tube (306), the other end of the spiral heat exchange tube (306) are fixedly connected with after shell (301)
It is fixedly connected cold fluid outlet pipe (305), the agitating shaft with stirring blade (20) is equipped at spiral heat exchange tube (306) center
(18), the agitating shaft (18) is driven by driving device and is rotated.
6. the evaporator that one kind according to claim 5 can utilize waste heat, it is characterised in that: the driving device includes
Motor cabinet (21), and the motor (22) and gear reduction unit (23) that are fixedly connected with motor cabinet (21), the motor cabinet (21)
It is bolted shell (301), the output shaft of the motor (22) passes through the input of toothed belt transmission connection gear speed reducer (23)
End, the output end of the gear reduction unit (23) are fixedly connected agitating shaft (18) by shaft coupling, and the agitating shaft (18) passes through
Holding screw is fixedly connected with stirring axle sleeve (19), and the stirring axle sleeve (19) is fixedly connected with three stirring blades (20), and three are stirred
It mixes blade (20) and is uniformly distributed about agitating shaft (20) in circumferential direction, and stirring blade (20) surface is coated with preventing dust adherency and applies
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811540261.7A CN109489440A (en) | 2018-12-17 | 2018-12-17 | A kind of evaporator that can utilize waste heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811540261.7A CN109489440A (en) | 2018-12-17 | 2018-12-17 | A kind of evaporator that can utilize waste heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109489440A true CN109489440A (en) | 2019-03-19 |
Family
ID=65710560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811540261.7A Pending CN109489440A (en) | 2018-12-17 | 2018-12-17 | A kind of evaporator that can utilize waste heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109489440A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111112284A (en) * | 2019-12-16 | 2020-05-08 | 杭州临江环境能源有限公司 | Device and method capable of comprehensively treating perishable garbage |
| CN111412445A (en) * | 2020-03-25 | 2020-07-14 | 浙江宝威电气有限公司 | Steam forming method for adjusting inclination angle through water pressure |
| CN111425831A (en) * | 2020-03-25 | 2020-07-17 | 浙江宝威电气有限公司 | Floating heating type steam generation method |
| CN111425832A (en) * | 2020-03-25 | 2020-07-17 | 浙江宝威电气有限公司 | Steam generator with inclination angle adjusted by water pressure |
| CN113698810A (en) * | 2020-12-28 | 2021-11-26 | 惟精环境科技有限公司 | Protective coating material resistant to high-temperature flue gas corrosion and preparation method thereof |
| CN113975924A (en) * | 2020-12-25 | 2022-01-28 | 山东天智信息科技有限公司 | Waste gas purification method based on cement production process |
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| CN209416078U (en) * | 2018-12-17 | 2019-09-20 | 江苏世林博尔制冷设备有限公司 | A kind of evaporator that can utilize waste heat |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111412445A (en) * | 2020-03-25 | 2020-07-14 | 浙江宝威电气有限公司 | Steam forming method for adjusting inclination angle through water pressure |
| CN111425831A (en) * | 2020-03-25 | 2020-07-17 | 浙江宝威电气有限公司 | Floating heating type steam generation method |
| CN111425832A (en) * | 2020-03-25 | 2020-07-17 | 浙江宝威电气有限公司 | Steam generator with inclination angle adjusted by water pressure |
| CN113975924A (en) * | 2020-12-25 | 2022-01-28 | 山东天智信息科技有限公司 | Waste gas purification method based on cement production process |
| CN113975924B (en) * | 2020-12-25 | 2022-10-25 | 唐山市众山环保科技有限公司 | Waste gas purification method based on cement production process |
| CN113698810A (en) * | 2020-12-28 | 2021-11-26 | 惟精环境科技有限公司 | Protective coating material resistant to high-temperature flue gas corrosion and preparation method thereof |
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