CN109506454A - Coal slime drying flue gas takes thermal - Google Patents
Coal slime drying flue gas takes thermal Download PDFInfo
- Publication number
- CN109506454A CN109506454A CN201811615212.5A CN201811615212A CN109506454A CN 109506454 A CN109506454 A CN 109506454A CN 201811615212 A CN201811615212 A CN 201811615212A CN 109506454 A CN109506454 A CN 109506454A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- unit
- heat exchange
- coal slime
- heat
- 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
- F26B25/00—Details of general application not covered by group F26B21/00 or F26B23/00
- F26B25/005—Treatment of dryer exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D21/0001—Recuperative heat exchangers
- F28D21/0014—Recuperative heat exchangers the heat being recuperated from waste air or from vapors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
- F28F19/02—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers by using coatings, e.g. vitreous or enamel coatings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a kind of coal slime drying flue gases to take thermal, it includes into cigarette unit, heat exchange unit, inertial separation unit and water collecting unit, it is described to be connected into cigarette unit with heat exchange unit, the heat exchange unit is connected to inertial separation unit, the water collecting unit is set to the bottom of the inertial separation unit, the flue gas is followed by into cigarette unit, heat exchange unit and inertial separation unit, the secondary heat exchange medium flows through heat exchange unit and heat exchange occurs for the flue gas, and the heat exchange unit includes heat exchanger and the spray equipment for cleaning the heat exchanger outer surface.Its purpose is to provide a kind of coal slime drying flue gas to take thermal, which will not block in use.
Description
Technical field
The present invention relates to one kind to take thermal, takes thermal for coal slime drying flue gas more particularly to a kind of.
Background technique
A large amount of coal slimes can be generated during Coalmine Coal Preparation Plant coal preparation technique, to enable coal slime to be reused, need by
Coal slime drying, main technique are as follows:
The high-temperature flue gas that coal-fired hot-blast stove generates enters drying drum, while coal slime enters roller through charging belt machine, high
Warm flue gas comes into full contact in roller with wet coal slime, takes away moisture in coal slime by the heat of flue gas, to reach coal slime baking
Dry purpose is discharged after coal slime drying through outfeed belt, and flue gas enters cyclone dust collectors, and desulfurizer, flue gas are entered after dedusting
Temperature is down to 45-50 DEG C, relative humidity 100%.The exhaust smoke level of different drying units is different, but typically larger than 30m3/ s, therefore accumulate
Contain a large amount of heat.
Due to containing a large amount of coal dust in the flue gas of coal slime drying, flue gas takes thermal to be easy blocking, this is that obstruction is current
The technical bottleneck that coal slime drying waste heat utilizes.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of coal slime drying flue gases to take thermal, and the device is in use process
In will not block.
Coal slime of the present invention drying flue gas takes thermal, wherein the flue gas take thermal include into cigarette unit, heat exchange unit,
Inertial separation unit and water collecting unit, described to be connected into cigarette unit with heat exchange unit, the heat exchange unit and inertial separation unit
Connection, the water collecting unit are set to the bottom of the inertial separation unit, and the flue gas is followed by single into cigarette unit, heat exchange
Member and inertial separation unit, the secondary heat exchange medium flows through heat exchange unit and heat exchange occurs for the flue gas, and the heat exchange is single
Member includes heat exchanger and the spray equipment for cleaning the heat exchanger outer surface.
Coal slime of the present invention drying flue gas takes thermal, wherein it is described into cigarette unit include interconnected into cigarette interface and expansion
Raw edge, the diffusing opening are connect with heat exchange unit.
Coal slime drying flue gas of the present invention takes thermal, wherein the heat exchange unit includes support frame, the heat exchanger and spray
Shower device is installed on support frame as described above.
Coal slime drying flue gas of the present invention takes thermal, wherein the heat exchanger is finned tube exchanger, the finned tube is changed
The pipeline of hot device uses coiled pipe, and the fin uses plate fin.
Coal slime drying flue gas of the present invention takes thermal, wherein being provided on the pipeline and fin of the finned tube exchanger
Hydrophily erosion resistant coating.
Coal slime drying flue gas of the present invention takes thermal, wherein the inertial separation unit includes inertia separation chamber, it is described used
Property separation chamber be equipped with air outlet and maintenance door.
Coal slime drying flue gas of the present invention takes thermal, wherein the water collecting unit includes water accumulating disc, sets on the water accumulating disc
There is discharge outlet.
The heat exchange unit packet that coal slime drying flue gas of the present invention takes thermal difference from prior art to be in the present invention
Heat exchanger and spray equipment are included, has flowed through heat transferring medium in heat exchanger, when flue gas flows through the outer surface of heat exchanger and in heat exchanger
Heat transferring medium occur heat exchange, due to containing coal dust in flue gas, after coal dust is gathered in heat exchanger outer surface, pass through spray dress
The outer surface for setting heat exchanging device is cleaned, will not blockage phenomenon.
The present invention will be further explained below with reference to the attached drawings.
Detailed description of the invention
Fig. 1 is that coal slime of the present invention drying flue gas takes thermal to be applied to coal slime drying fume afterheat step depth recycling
The structural schematic diagram of system；
Fig. 2 is the structural schematic diagram that coal slime of the present invention dries that flue gas takes thermal；
Fig. 3 is the A direction view in Fig. 2；
Fig. 4 is that Fig. 3 goes to fall into the view after cigarette unit；
Fig. 5 is secondary heat exchange medium and heat pump unit in coal slime drying fume afterheat step advanced recycling system
Heat exchange principle figure.
Specific embodiment
As shown in Figure 1, coal slime drying fume afterheat step advanced recycling system includes that level-one takes thermal and second level
Thermal is taken, it includes flue gas heat exchange of heat pipe 1, primary cycle pipeline 2 and level-one heat user, the cigarette that the level-one, which takes thermal,
Gas heat exchange of heat pipe 1 is connected to by primary cycle pipeline 2 with level-one heat user, the flue gas heat exchange of heat pipe 1 and primary cycle
Circulation has level-one heat transferring medium in pipeline 2, and it includes that coal slime of the present invention drying flue gas takes thermal 3, two that the second level, which takes thermal,
Grade circulation line 4 and second level heat user, the coal slime drying flue gas take thermal 3 to use by secondary cycle pipeline 4 and second level heat
Family connection, the coal slime drying flue gas take circulation in thermal 3 and secondary cycle pipeline 4 to have secondary heat exchange medium, the flue gas
Thermal 3 is taken to exchange heat followed by flue gas heat exchange of heat pipe 1 and coal slime drying flue gas.
As shown in Figure 1, coal slime dries flue gas enters chimney 6 after desulfurizing tower 5, flue 7, cigarette are connected on chimney 6
Feed channel 7 is sequentially communicated flue gas heat exchange of heat pipe 1 and coal slime drying flue gas takes thermal 3.When flue gas flows through flue gas heat pipe heat exchanging
After device 1, by exchanging heat with level-one heat transferring medium, flue-gas temperature is down to 30 DEG C by 50 DEG C, and level-one heat transferring medium is water, passes through
Heat exchange, 30 DEG C of coolant-temperature gage are increased to 40 DEG C, and 40 DEG C of hot water meets wellhead anti-freezing heat supply, and wellhead anti-freezing is that level-one heat is used
Family.After flue gas, which flows through coal slime drying flue gas, takes thermal 3, by exchanging heat with secondary heat exchange medium, flue-gas temperature is into one
Step is down to 10 DEG C by 30 DEG C, and secondary heat exchange medium is also water, and after heat exchange, secondary heat exchange medium becomes 50-60 DEG C of hot water,
It can satisfy building and heating, bath hot water heat supply, naturally it is also possible to meet wellhead anti-freezing heat demand.Building and heating, bathing heat
One or more of water heat supply and wellhead anti-freezing are second level heat user.
Coal slime drying flue gas of the present invention, which takes, is provided with heat pump unit 8 between thermal 3 and second level heat user, the second level is followed
Endless tube road 4 includes the first subcycle pipeline and the second subcycle pipeline, and the first subcycle piping connection dries cigarette in coal slime
Gas takes between thermal 3 and heat pump unit 8, and the second subcycle piping connection is between heat pump unit 8 and second level heat user.
As shown in figure 5, heat pump unit 8 includes compressor 9, condenser 10, expansion valve 11 and evaporator 12, the first subcycle
Secondary heat exchange medium in pipeline takes thermal 3 to absorb heat through coal slime drying flue gas, later again through 12 heat release of evaporator, evaporator 12
Entered in condenser 10 after interior refrigerant heat absorption through compressor 9, refrigerant in condenser 10 with the second subcycle pipe
Secondary heat exchange medium in road exchanges heat, and the secondary heat exchange medium in the second subcycle pipeline is after condenser 10 in temperature
It is upgraded to 50 DEG C -60 DEG C of hot water, can satisfy second level heat user uses heat demand.
Regenerative apparatus 13 is installed on second subcycle pipeline.In order to solve to need daily in coal slime drying course to shut down 2-
3 hours, the problem of heat supply discontinuity, regenerative apparatus 13 is used in system, usually extra heat storage is got up, for full
Foot or the heat demand for alleviating downtime section.Regenerative apparatus is the prior art, and the principle is as follows: hot water storage tank is used, it will be more
Remaining heat storage Yu Shuizhong forms a certain amount of hot water, after coal slime drying stops, can continuing to supply using the hot water in water tank
Heat.
Circulating pump 14 is mounted on primary cycle pipeline 2, the first subcycle pipeline and the second subcycle pipeline.
As shown in Fig. 2, and combine Fig. 3, shown in 4, coal slime drying flue gas of the present invention takes thermal 3 to include into cigarette unit, change
Hot cell, inertial separation unit and water collecting unit, described to be connected into cigarette unit with heat exchange unit, the heat exchange unit and inertia point
Be connected to from unit, the water collecting unit is set to the bottom of the inertial separation unit, the flue gas followed by into cigarette unit,
Heat exchange unit and inertial separation unit, the secondary heat exchange medium flows through heat exchange unit and heat exchange occurs for the flue gas, described
Heat exchange unit includes heat exchanger 19 and the spray equipment 18 for cleaning 19 outer surface of heat exchanger.
It include interconnected into cigarette interface 15 and diffusing opening 16 into cigarette unit, the diffusing opening 16 connects with heat exchange unit
It connects.
Heat exchange unit includes support frame 17, and the heat exchanger 19 and spray equipment 18 are installed on support frame as described above 17.
Heat exchanger 19 is finned tube exchanger, and the pipeline of the finned tube exchanger uses coiled pipe, and the fin uses
Plate fin.
It is provided with hydrophily erosion resistant coating on the pipeline and fin of finned tube exchanger, is usually arranged by way of spraying
Hydrophily erosion resistant coating prevents flue-gas temperature to be down to the following bring low-temperature corrosion problem of acid dew point to reach.Hydrophily erosion resistant coating
Anti-corrosion and it can prevent dust from assembling, easy cleaning.
Inertial separation unit includes inertia separation chamber 20, and the inertia separation chamber 20 is equipped with air outlet and maintenance door 21,
The water collecting unit includes water accumulating disc 22, and the water accumulating disc 22 is equipped with discharge outlet 23.
Coal slime drying flue gas of the present invention takes in thermal, and the main function into cigarette unit is cigarette receiving feed channel 7 and makes flue gas
Reduction of speed diffusion is carried out after, so that flue gas is evenly distributed as much as possible on section when entering heat exchange unit；Heat exchange unit fin
The effect of heat exchange of heat pipe is to replace the heat of flue gas to give secondary heat exchange medium；The effect of spray equipment 18 is when finned tube exchanges heat
After device is dirty, heat exchanger tube and fin are cleaned；The effect of inertial separation unit separates flue gas with condensed water, reduces flue gas and takes out of
Take the condensing capacity of thermal；The effect of water collecting unit is to collect condensed water and shower water, passes through the external drainpipe of discharge outlet 23
Discharge is concentrated afterwards.
In coal slime drying fume afterheat step advanced recycling system, take thermal by exchanging heat cigarette by level-one
Temperature degree is down to 30 DEG C by 50 DEG C, is used for level-one heat user after the heating of level-one heat transferring medium；Second level takes thermal will by heat exchange
Flue-gas temperature is down to 10 DEG C by 30 DEG C, is used for second level heat user after the heating of secondary heat exchange medium.Heat is successively taken by above-mentioned two-stage,
It forms step and takes heat, realize and coal slime drying fume afterheat is subjected to depth recycling, finally make exhaust gas temperature on 10 DEG C of left sides
Fume afterheat has farthest been recycled on the right side, greatly improves energy utilization rate, and reduces water of the flue gas emission into air
Steam.
1) coal slime drying fume afterheat step advanced recycling system, which has the advantages that, at home for the first time to be dried coal slime
Dry flue gas waste heat is recycled；2) distributed area different according to flue-gas temperature, is respectively adopted flue gas heat exchange of heat pipe 1
It directly exchanges heat and is recycled using heat pump techniques, and according to the different heat sources temperature of preparation, meet different for heat target
With heat demand, keep system configuration optimal, energy consumption is minimum, with the smallest energy consumption, utmostly recycles coal slime and dries fume afterheat.
Advantages of the present invention is as follows:
1) present invention solves the problems, such as that low-temperature flue gas recycles blocking in the process and corrosion, and innovative has recycled coal
The low-temperature flue gas waste heat of mud drying.
2) coal slime drying flue gas of the present invention takes thermal 3 using integrated design, and compact-sized, installation is simple and convenient, leads to
Built-in spray equipment 18 is crossed, interval auto-flushing takes thermal heat exchanger fin, solves and take thermal due to containing in flue gas
Blockage problem caused by a large amount of coal slimes；Finned tube exchanger surface by exchanging hot cell sprays hydrophily erosion resistant coating, solves
Flue-gas temperature is down to the following bring low-temperature corrosion problem of acid dew point.
3) inertial separation unit is devised, separates flue gas in time with condensed water, reduces flue gas and takes out of and take outside thermal
Water, so that shower water and condensed water is carried out centralized collection.
Embodiment described above only describe the preferred embodiments of the invention, not to model of the invention
It encloses and is defined, without departing from the spirit of the design of the present invention, those of ordinary skill in the art are to technical side of the invention
The various changes and improvements that case is made should all be fallen into the protection scope that claims of the present invention determines.
Claims (7)
1. a kind of coal slime drying flue gas takes thermal, it is characterised in that: including into cigarette unit, heat exchange unit, inertial separation unit
And water collecting unit, described to be connected into cigarette unit with heat exchange unit, the heat exchange unit is connected to inertial separation unit, described to catchment
Unit is set to the bottom of the inertial separation unit, and the flue gas is followed by into cigarette unit, heat exchange unit and inertial separation
Unit, the secondary heat exchange medium flows through heat exchange unit and heat exchange occurs for the flue gas, and the heat exchange unit includes heat exchanger
With the spray equipment for cleaning the heat exchanger outer surface.
2. coal slime according to claim 1 drying flue gas takes thermal, it is characterised in that: described into cigarette unit includes mutual
Connection into cigarette interface and diffusing opening, the diffusing opening is connect with heat exchange unit.
3. coal slime according to claim 1 or 2 drying flue gas takes thermal, it is characterised in that: the heat exchange unit includes
Support frame, the heat exchanger and spray equipment are installed on support frame as described above.
4. coal slime drying flue gas according to claim 3 takes thermal, it is characterised in that: the heat exchanger changes for finned tube
Hot device, the pipeline of the finned tube exchanger use coiled pipe, and the fin uses plate fin.
5. coal slime drying flue gas according to claim 4 takes thermal, it is characterised in that: the pipe of the finned tube exchanger
Hydrophily erosion resistant coating is provided on road and fin.
6. coal slime according to claim 5 drying flue gas takes thermal, it is characterised in that: the inertial separation unit includes
Inertia separation chamber, the inertia separation chamber are equipped with air outlet and maintenance door.
7. coal slime drying flue gas according to claim 6 takes thermal, it is characterised in that: the water collecting unit includes ponding
Disk, the water accumulating disc are equipped with discharge outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811615212.5A CN109506454A (en) | 2018-12-27 | 2018-12-27 | Coal slime drying flue gas takes thermal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811615212.5A CN109506454A (en) | 2018-12-27 | 2018-12-27 | Coal slime drying flue gas takes thermal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109506454A true CN109506454A (en) | 2019-03-22 |
Family
ID=65755486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811615212.5A Pending CN109506454A (en) | 2018-12-27 | 2018-12-27 | Coal slime drying flue gas takes thermal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109506454A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4198429A1 (en) * | 2021-12-15 | 2023-06-21 | Mathias Kleine | Recovery device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202229608U (en) * | 2011-08-16 | 2012-05-23 | 山西煤炭进出口集团科技发展有限公司 | Waste heat recovery system discharges fume of colliery waste rock brickyard |
| CN102519278A (en) * | 2011-12-15 | 2012-06-27 | 清华大学 | Heat exchanger capable of recycling heat from acidic gas containing dust |
| CN105157051A (en) * | 2015-08-24 | 2015-12-16 | 上海华向节能环保科技有限公司 | Fluoroplastic waste heat recycling and ultra-low emission integrated device |
| CN105953627A (en) * | 2016-04-27 | 2016-09-21 | 江苏广旭热管科技有限公司 | Composite finned tube |
| CN106287646A (en) * | 2016-08-25 | 2017-01-04 | 上海电力学院 | Collect the device of steam in flue gas |
| CN209910360U (en) * | 2018-12-27 | 2020-01-07 | 北京中矿博能节能科技有限公司 | Coal slime drying flue gas heat-taking device |
-
2018
- 2018-12-27 CN CN201811615212.5A patent/CN109506454A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202229608U (en) * | 2011-08-16 | 2012-05-23 | 山西煤炭进出口集团科技发展有限公司 | Waste heat recovery system discharges fume of colliery waste rock brickyard |
| CN102519278A (en) * | 2011-12-15 | 2012-06-27 | 清华大学 | Heat exchanger capable of recycling heat from acidic gas containing dust |
| CN105157051A (en) * | 2015-08-24 | 2015-12-16 | 上海华向节能环保科技有限公司 | Fluoroplastic waste heat recycling and ultra-low emission integrated device |
| CN105953627A (en) * | 2016-04-27 | 2016-09-21 | 江苏广旭热管科技有限公司 | Composite finned tube |
| CN106287646A (en) * | 2016-08-25 | 2017-01-04 | 上海电力学院 | Collect the device of steam in flue gas |
| CN209910360U (en) * | 2018-12-27 | 2020-01-07 | 北京中矿博能节能科技有限公司 | Coal slime drying flue gas heat-taking device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4198429A1 (en) * | 2021-12-15 | 2023-06-21 | Mathias Kleine | Recovery device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201251371Y (en) | Flue gas pre-cooling system with highly-effective water and energy conservation | |
| CN102410036B (en) | High-speed mine return-air heat exchanger and application method thereof | |
| CN104110675B (en) | A kind of boiler smoke degree of depth heat reclamation device and method | |
| CN102183007A (en) | Waste heat recovering system of boiler | |
| CN104048307A (en) | Smoke waste heat comprehensive utilization device and method | |
| CN110124500A (en) | A kind of depth recycles the device and method of water resource in wet flue gas | |
| CN102997267A (en) | Smoke reheating device of combining phase-change heat exchanger with net gas heater | |
| CN212954818U (en) | Low-temperature belt type drying equipment based on heat pump dehumidification technology | |
| CN108722124A (en) | The integral system and method for fair and clearization and waste heat recovery are taken off for smoke multistage | |
| CN205032022U (en) | Ash -laden gas condensation heat recovery and gas cleaning integration system | |
| CN109395540B (en) | Raw flue gas sensible heat deep utilization regeneration system | |
| CN209445787U (en) | Coal slime dries fume afterheat step advanced recycling system | |
| CN104864448B (en) | A kind of hot water supply system of energy-conservation | |
| CN202012904U (en) | Boiler waste heat recovery system | |
| CN109506453A (en) | Coal slime dries fume afterheat step advanced recycling system | |
| CN108800975A (en) | A kind of flue gas cooling heat exchanger of the desulfurization duct mouth with refrigerating plant | |
| CN109506454A (en) | Coal slime drying flue gas takes thermal | |
| CN209910360U (en) | Coal slime drying flue gas heat-taking device | |
| CN202246731U (en) | Waste heat recovery and bag-type dust removal system | |
| CN109469918B (en) | Flue heating regenerating unit | |
| CN209049193U (en) | Steam-heated white plume governing system is condensed again based on fluorine plastic-steel | |
| CN209181272U (en) | A kind of flue gas waste heat recovery apparatus | |
| CN204084324U (en) | A kind of boiler smoke degree of depth heat reclamation device | |
| CN207936045U (en) | A kind of device of novel thermal power plant's low temperature heat and eliminating white smoke | |
| CN216644416U (en) | Hot-blast unit of heat pump based on return air waste 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 |