CN206755311U - Dirty exhaust heat heating system drops in low-temperature sintering flue gas depth - Google Patents
Dirty exhaust heat heating system drops in low-temperature sintering flue gas depth Download PDFInfo
- Publication number
- CN206755311U CN206755311U CN201720540923.5U CN201720540923U CN206755311U CN 206755311 U CN206755311 U CN 206755311U CN 201720540923 U CN201720540923 U CN 201720540923U CN 206755311 U CN206755311 U CN 206755311U
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- China
- Prior art keywords
- flue gas
- heat
- low
- water tank
- heating system
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- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
-
- 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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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a kind of low-temperature sintering flue gas depth to drop dirty exhaust heat heating system, it includes absorption heat pump, absorption heat pump is connected on heating user's pipe network, the generator section of absorption heat pump is connected with saturated vapor access tube and condensate water discharge, the heating system also includes flue gas waste heat recovery heat exchanger and cyclic water tank, low-temperature flue gas access tube is connected with flue gas waste heat recovery heat exchanger, flue gas waste heat recovery heat exchanger is built with the spray heat-exchanger rig and demister arranged successively along flue gas trend, the bottom of flue gas waste heat recovery heat exchanger positioned at the pipeline of spray heat-exchanger rig and demister by being connected on cyclic water tank, cyclic water tank is connected to the evaporator section of absorption heat pump by thermal source feed pipe, the evaporator section is provided with the thermal source outlet pipe for stretching into spray heat-exchanger rig.The utility model makes full use of the residual heat resources of low-temperature sintering flue gas, realizes the central heating to user, reduces energy waste, improves economic benefit.
Description
Technical field
It the utility model is related to a kind of low-temperature sintering flue gas depth and drop dirty exhaust heat heating system.
Background technology
When sintering deposit cools down, substantial amounts of waste heat can be produced and be transferred in flue gas, flue-gas temperature is different with the position of central cooler
High temperature section can be divided into（Flue-gas temperature >=300 DEG C）, middle-temperature section（200 DEG C~300 DEG C of flue-gas temperature）And low-temperature zone（Flue-gas temperature≤
200℃）.High temperature section flue gas produces steam by waste heat boiler, for heat supply or generating；Middle-temperature section flue gas helps for sintering ignition
Fire air；And low-temperature zone flue gas is directly discharged in air or surrounding enviroment, causes energy waste, environmental pollution and investment and increase
The adverse effect such as add.
In addition, the flue-gas temperature discharged after sintering machine head end electric cleaner is at 140~160 DEG C, after wet desulphurization purifies
Still substantial amounts of obvious heat of smoke, the latent heat of vaporization and a small amount of SO are contained in saturation wet flue gas2、NOx, the pollutant such as moisture, directly arrange
Enter air and will also result in energy waste and environmental pollution, in Steel Production Flow Chart, sinter and substantial amounts of low temperature money in workshop section be present
Source is not utilized, causes the residual heat resources rate of recovery for sintering workshop section minimum.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of low-temperature sintering flue gas depth and drops dirty exhaust heat heating system,
Dirty exhaust heat heating system drops in the low-temperature sintering flue gas depth can make full use of above-mentioned low-temperature flue gas, save the energy and protection ring
Border.
In order to solve the above technical problems, the low-temperature sintering flue gas depth provided drops dirty exhaust heat heating system including absorption
Heat pump, absorption heat pump are connected on heating user's pipe network by heat supply network feed pipe, heat supply network return pipe, the generation of absorption heat pump
Device section is connected with saturated vapor access tube and condensate water discharge, and it is structurally characterized in that：The heating system is also included more than flue gas
Heat recovering heat exchanger and cyclic water tank, low-temperature flue gas access tube, flue gas waste heat recovery are connected with flue gas waste heat recovery heat exchanger
Heat exchanger is built with the spray heat-exchanger rig and demister arranged successively along flue gas trend, the bottom of flue gas waste heat recovery heat exchanger
By being connected to positioned at the pipeline of spray heat-exchanger rig and demister on cyclic water tank, cyclic water tank passes through thermal source feed pipe in portion
The evaporator section of absorption heat pump is connected to, the evaporator section is provided with the thermal source outlet pipe for stretching into spray heat-exchanger rig.
The spray heat-exchanger rig includes the shower tray being connected in flue gas waste heat recovery apparatus, and shower tray is provided with spray
Head, the thermal source outlet pipe are connected with shower tray.
Three shower trays being spaced downwards are set altogether, the injection direction of the spray head of the top shower tray is set down, under
The injection direction of the spray head of two shower trays in side is set upward.
Desulphurization denitration spray equipment is housed on the cyclic water tank.
Filter feeding pipe on the cyclic water tank, the end of filter feeding pipe are connected with filter press, and filter press passes through filtering
Drainpipe is connected on cyclic water tank.
The utility model is that dirty waste heat for supplying system drops in a kind of low-temperature sintering flue gas depth, by low-temperature flue gas dedusting,
After wet desulphurization, increase the dirty waste heat for supplying system of low-temperature sintering flue gas depth drop between desulfurization rear pass and chimney.The present invention
Major advantage it is as follows：
（1）The residual heat resources of low-temperature sintering flue gas are made full use of, realize the central heating to user, reduce energy waste,
Improve economic benefit；
（2）Flue gas after desulfurization enters direct contact type flue gas waste heat recovery heat exchanger, after fully being contacted with heat source water, reduces
While flue-gas temperature, the SO in flue gas is further removed2And flue dust, play a part of depth waste heat recovery, desulfurization, depositing dust,
Meet the energy-saving and emission-reduction of country's promotion at present and the requirement of minimum discharge.
（3）Demister is set up at flue outlet, removes the drop in wet flue gas and a small amount of dust, flue gas with water is reduced, disappears
Except chimney " emitting white cigarette " phenomenon.
Brief description of the drawings
The utility model is further described below in conjunction with the accompanying drawings：
Fig. 1 is a kind of structural representation of embodiment of the utility model.
Embodiment
As shown in figure 1, the utility model, which provides a kind of low-temperature sintering flue gas depth, drops dirty exhaust heat heating system, in figure
Arrow represents the trend of steam and water, and it includes absorption heat pump 7, and the concrete structure of absorption heat pump is prior art, and it is wrapped
Condenser section, evaporator section, generator section and absorber section are included, detailed structure repeats no more, and absorption heat pump 7 passes through heat supply network
Feed pipe, heat supply network return pipe are connected on heating user pipe network 10, condenser section and heating user pipe network 10, absorption heat pump 7
Generator section be connected with saturated vapor access tube 17 and condensate water discharge 18, the heating system also returns including fume afterheat
Heat exchanger 1 and cyclic water tank 2 are received, low-temperature flue gas access tube 9 is connected with flue gas waste heat recovery heat exchanger 1, the fume afterheat returns
Receipts heat exchanger 1 is direct-contact heat exchanger, and flue gas waste heat recovery heat exchanger 1 is built with the spray arranged successively along flue gas trend
Heat-exchanger rig and demister, the bottom of flue gas waste heat recovery heat exchanger 1 pass through positioned at spray heat-exchanger rig and demister 8
Pipeline is connected on cyclic water tank 2, and the end of flue gas waste heat recovery heat exchanger 1 is also associated with chimney 6, and flue gas passes through above-mentioned spray
Discharged after heat-exchanger rig and demister through chimney 6, cyclic water tank 2 is connected to absorption heat pump 7 by thermal source feed pipe 15
Evaporator section, water circulating pump can be installed on thermal source feed pipe 15, there is provided power, the evaporator section are provided with and stretch into spray
Drench the thermal source outlet pipe 11 of heat-exchanger rig.
Refer to the attached drawing, the spray heat-exchanger rig include the shower tray 12 being connected in flue gas waste heat recovery apparatus, spray
Disk is provided with spray head, and the thermal source outlet pipe is connected with shower tray, sets three shower trays 12 being spaced downwards, the top altogether
The injection direction of the spray head of shower tray is set down, and the injection direction of the spray head of two shower trays in lower section is set upward, this
The setting of kind spray structure can make water be sufficiently mixed being exchanged heat with flue gas, and remove the sulfur dioxide in low-temperature flue gas
And dust.Above-mentioned demister 8 includes housing and the demisting plate being connected in housing, and demisting plate can use in the prior art
Mesh plate, baffler arranged in a crossed manner can also be used to carry out demisting, the concrete structure of demister is prior art, herein
No longer describe in detail.
Refer to the attached drawing, desulphurization denitration spray equipment is housed on the cyclic water tank 2, the present embodiment does not provide the out of stock spray of desulfurization
The concrete structure of shower device, it includes being connected to shower nozzle and supply pump on cyclic water tank, and supply pump provides desulfurization to shower nozzle
Denitration liquid, above-mentioned desulphurization denitration liquid being sprayed into cyclic water tank by shower nozzle, the specific composition of desulphurization denitration liquid is prior art,
Filter feeding pipe 13 on the cyclic water tank 2, water circulating pump can be installed on filter feeding pipe 13, there is provided power, filter feeding pipe
End be connected with filter press 4, filter press 4 can use plate type pressure filter, can also use other filter presses of the prior art,
Its concrete structure is repeated no more, and filter press 4 is connected on cyclic water tank 2 by water filtering and draining pipe 14.
The utility model is not restricted to the described embodiments, for those skilled in the art, based on the utility model
The equivalent variations and part replacement of concrete structure are all in the scope of protection of the utility model.
Claims (5)
1. dirty exhaust heat heating system, including absorption heat pump drop in a kind of low-temperature sintering flue gas depth（7）, absorption heat pump（7）It is logical
Cross heat supply network feed pipe, heat supply network return pipe is connected to heating user's pipe network（10）On, absorption heat pump（7）Generator section be connected with
Saturated vapor access tube and condensate water discharge, it is characterized in that：The heating system also includes flue gas waste heat recovery heat exchanger（1）
And cyclic water tank（2）, flue gas waste heat recovery heat exchanger（1）On be connected with low-temperature flue gas access tube（9）, flue gas waste heat recovery heat exchange
Device（1）Built with the spray heat-exchanger rig and demister arranged successively along flue gas trend, flue gas waste heat recovery heat exchanger（1）'s
Bottom positioned at the pipeline of spray heat-exchanger rig and demister by being connected to cyclic water tank（2）On, cyclic water tank（2）Pass through heat
Source feed pipe（15）It is connected to absorption heat pump（7）Evaporator section, the evaporator section be provided with stretch into spray heat-exchanger rig
Thermal source outlet pipe（11）.
2. dirty exhaust heat heating system drops in low-temperature sintering flue gas depth according to claim 1, it is characterized in that：The spray changes
Thermal includes the shower tray being connected in flue gas waste heat recovery apparatus（12）, shower tray is provided with spray head, and the thermal source goes out
Water pipe is connected with shower tray.
3. dirty exhaust heat heating system drops in low-temperature sintering flue gas depth according to claim 2, it is characterized in that：Set altogether downward
Three shower trays at interval（12）, the injection direction of the spray head of the top shower tray sets down, the shower tray of lower section two
The injection direction of spray head is set upward.
4. dirty exhaust heat heating system drops in the low-temperature sintering flue gas depth according to any one of claim 1-3, it is characterized in that：
The cyclic water tank（2）It is upper that desulphurization denitration spray equipment is housed.
5. dirty exhaust heat heating system drops in the low-temperature sintering flue gas depth according to any one of claim 1-3, it is characterized in that：
The cyclic water tank（2）Upper filter feeding pipe（13）, the end of filter feeding pipe is connected with filter press（4）, filter press（4）Pass through
Water filtering and draining pipe is connected to cyclic water tank（2）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720540923.5U CN206755311U (en) | 2017-05-16 | 2017-05-16 | Dirty exhaust heat heating system drops in low-temperature sintering flue gas depth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720540923.5U CN206755311U (en) | 2017-05-16 | 2017-05-16 | Dirty exhaust heat heating system drops in low-temperature sintering flue gas depth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206755311U true CN206755311U (en) | 2017-12-15 |
Family
ID=60617203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720540923.5U Expired - Fee Related CN206755311U (en) | 2017-05-16 | 2017-05-16 | Dirty exhaust heat heating system drops in low-temperature sintering flue gas depth |
Country Status (1)
| Country | Link |
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| CN (1) | CN206755311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108704463A (en) * | 2018-07-25 | 2018-10-26 | 北京京诚科林环保科技有限公司 | A kind of sintering flue gas desulfurization denitration, flue gas disappear white total system and technique |
-
2017
- 2017-05-16 CN CN201720540923.5U patent/CN206755311U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108704463A (en) * | 2018-07-25 | 2018-10-26 | 北京京诚科林环保科技有限公司 | A kind of sintering flue gas desulfurization denitration, flue gas disappear white total system and technique |
| CN108704463B (en) * | 2018-07-25 | 2024-03-08 | 北京京诚科林环保科技有限公司 | Comprehensive treatment system and process for desulfurization and denitrification of sintering flue gas and whitening of flue gas |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20210516 |
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| CF01 | Termination of patent right due to non-payment of annual fee |