CN202671552U - Blast furnace slag flushing water heat exchange system - Google Patents
Blast furnace slag flushing water heat exchange system Download PDFInfo
- Publication number
- CN202671552U CN202671552U CN2012202936915U CN201220293691U CN202671552U CN 202671552 U CN202671552 U CN 202671552U CN 2012202936915 U CN2012202936915 U CN 2012202936915U CN 201220293691 U CN201220293691 U CN 201220293691U CN 202671552 U CN202671552 U CN 202671552U
- Authority
- CN
- China
- Prior art keywords
- water
- blast furnace
- heat exchange
- slag
- furnace slag
- 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.)
- Withdrawn - After Issue
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/02—Physical or chemical treatment of slags
- C21B2400/022—Methods of cooling or quenching molten slag
- C21B2400/024—Methods of cooling or quenching molten slag with the direct use of steam or liquid coolants, e.g. water
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/05—Apparatus features
- C21B2400/066—Receptacle features where the slag is treated
- C21B2400/072—Tanks to collect the slag, e.g. water tank
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B2400/00—Treatment of slags originating from iron or steel processes
- C21B2400/08—Treatment of slags originating from iron or steel processes with energy recovery
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- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a blast furnace slag flushing water heat exchange system. The blast furnace slag flushing water heat exchange system comprises a heat exchanger, a slag water booster pump and a circulating water pump, wherein the slag water booster pump and the heat exchanger are connected in a slag water circulating pipeline in series, and the circulating water pump and the heat exchanger are connected in a circulating water circulating pipeline in series. According to the blast furnace slag flushing water heat exchange system disclosed by the utility model, the flow direction of slag water is changed by adding a valve, the blocking problem during a heat exchange process of the slag water is essentially solved, and reliable assurance is provided for the long-time continuous operation of the heat exchanger; slag flushing water enters into a slag water circulating system through a slag water tank, the stop production problem of a blast furnace when a heat exchange station is in construction is solved, and the construction of a heat exchange station system without stop production is realized; a spiral plate straight-through heat exchanger is adopted, thus not only is the heat exchange efficiency higher, but also the slag flushing water has a flushing effect, and the suspension phenomenon of suspended matters is reduced; and a slag water side in the system adopts special material and selects a special flow rate, thus the probability of blocking a pipeline is greatly reduced, the service life of the pipeline is increased, and the blast furnace slag flushing water heat exchange system has an extremely strong practical significance.
Description
Technical field
The utility model relates to a kind of exchange heating system, especially a kind of blast furnace slag quenching water heat-exchange system of iron and steel enterprise.
Background technology
At present, employing blast furnace slag quenching water direct heating on the market, serious stopping state appears in the scatterer that makes and pipeline, if adopt indirect heat exchange, again the interchanger blockage problem can occur then, except the flushing cinder water suspension stopped up, blast furnace slag quenching water had crystallisate to separate out in temperature-fall period, and the interchanger resistance will be increased gradually, reduce heat transfer effect, in the heat exchange engineering of blast furnace slag quenching water, need blast furnace to stop production and carry out interface in addition, production is had an immense impact on.
The utility model content
The utility model technical issues that need to address provide a kind of interchanger and are difficult for stopping up the blast furnace slag quenching water heat-exchange system that the heat exchange engineering construction does not need blast furnace to stop production.
For addressing the above problem, technical solution adopted in the utility model is: a kind of blast furnace slag quenching water heat-exchange system, it comprises interchanger, pulp water topping-up pump, water circulating pump, pulp water topping-up pump and interchanger are connected in series in the pulp water circulation line, and water circulating pump and interchanger are connected in series in the recirculated water circulation line.
This novel heat exchanger inlet and outlet in the pulp water circulation line arranges 4 deck valve door A, B, C, D, valve A, B one side are with the end that enters that connects circulation line, opposite side connects respectively import and the outlet of interchanger, valve C, D one side are with the end that goes out that connects circulation line, and opposite side connects respectively import and the outlet of interchanger.
Each 3 in described interchanger, pulp water topping-up pump and water circulating pump.
This novel pulp water pond that also comprises, the entrance and exit of pulp water circulation line all is located in the pulp water pond.
Described interchanger adopts spiral plate through type interchanger.
The beneficial effect that adopts technique scheme to produce is: the utility model has solved the problem of utilizing of iron and steel enterprise's hot wastewater for many years by the blast furnace slag quenching water heat exchange; alleviated the immense pressure of iron and steel enterprise's energy-saving and emission-reduction; native system utilizes the blast furnace pulp water to carry out the pulp water heat exchange for producing and the life heat supply; in operational process except cleaning the discharge of wastewater on a small quantity; do not efflux pollutent; from the environment protection angle, has extremely strong social benefit.This is novel by increasing the valve change pulp water flow direction, has substantially solved the blockage problem in the pulp water heat transfer process, for the long-term continuous operation of interchanger provides reliable guarantee.Flushing cinder water enters the pulp water recycle system by the pulp water pond, and the blast furnace stopping production problem when having solved the heat exchange station construction has realized the construction heat exchange station system that do not stop production.Interchanger adopts spiral plate through type interchanger, and higher heat exchange efficiency is not only arranged, and also can make the flushing cinder glassware for drinking water that scouring effect is arranged, and reduces suspended substance and hangs phenomenon.The pulp water side adopts special substance, selected specific flow velocity in the system, has reduced greatly the probability of line clogging, has increased the work-ing life of pipeline, makes this heat-exchange system have extremely strong Practical significance.
Description of drawings
Fig. 1 is the utility model pipeline arranging structure schematic diagram;
Fig. 2 is the utility model process flow sheet.
Embodiment
Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:
As depicted in figs. 1 and 2, this is novel to comprise 3 interchanger 1,3 pulp water topping-up pumps 2,3 water circulating pumps 3 and pulp water pond 4, pulp water topping-up pump and interchanger are connected in series in the pulp water circulation line, water circulating pump and interchanger are connected in series in the recirculated water circulation line, the entrance and exit of pulp water circulation line all is located in the pulp water pond, entrance is arranged in the distributing well 5 in pulp water pond, and outlet is arranged in the suction well 6 in pulp water pond, and the outlet of recirculated water circulation line and entrance are connected to the hot water user.This novel heat exchanger inlet and outlet in the pulp water circulation line arranges 4 deck valve door A, B, C, D, valve A, B one side are with the end that enters that connects circulation line, opposite side connects respectively import and the outlet of interchanger, valve C, D one side are with the end that goes out that connects circulation line, and opposite side connects respectively import and the outlet of interchanger.Described interchanger adopts spiral plate through type interchanger.
Principle of work:
Blast furnace slag quenching water is by distributing well 5 drawing-in systems in blast furnace slag quenching water pulp water pond 4, enter slag-water heat exchanger 1. through pulp water topping-up pump 2 and carry out indirect heat exchange at blast furnace slag flushing water-to-water heat exchanger 1 and recirculated water, the blast furnace slag quenching water after temperature reduces enters the suction well 6 in blast furnace slag flushing pond.Hot user's backwater carries out supercharging through water circulating pump 3, enters slag-water heat exchanger 1, and temperature enters hot user after raising.Finish thus the heat transfer process of blast furnace slag quenching water and recirculated water.
In the blast furnace slag quenching water heat transfer process, normal circumstances lower valve A, D open, and valve B, C close. and when the pulp water side was stopped up, valve B, C opened, and valve A, D close., begin thus the pulp water backwash process, during end of processing subject to backwash, the reinstatement attitude.
When blast furnace slag quenching water is introduced, introduced by distributing well, can adopt the method that reduces water level to solve construction problem during construction, can not finish construction under the end-of-life state.
The blast furnace slag quenching water heat exchange has solved the problem of utilizing of iron and steel enterprise's hot wastewater for many years; alleviated the immense pressure of iron and steel enterprise's energy-saving and emission-reduction; native system utilizes the blast furnace pulp water to carry out the pulp water heat exchange for producing and the life heat supply; in operational process except cleaning the discharge of wastewater on a small quantity; do not efflux pollutent; from the environment protection angle, has extremely strong social benefit.This novel blockage problem that has substantially solved in the pulp water heat transfer process is for the long-term continuous operation of interchanger provides reliable guarantee.Solve the blast furnace stopping production problem of heat exchange station when building, realized the construction heat exchange station system that do not stop production.
Interchanger adopts spiral plate through type interchanger, and higher heat exchange efficiency is not only arranged, and also can make the flushing cinder glassware for drinking water that scouring effect is arranged, and reduces suspended substance and hangs phenomenon.The pulp water side adopts special substance, selected specific flow velocity in the system, has reduced greatly the probability of line clogging, has increased the work-ing life of pipeline, makes this heat-exchange system have extremely strong Practical significance.
Claims (5)
1. blast furnace slag quenching water heat-exchange system, it is characterized in that: it comprises interchanger (1), pulp water topping-up pump (2), water circulating pump (3), pulp water topping-up pump and interchanger are connected in series in the pulp water circulation line, and water circulating pump and interchanger are connected in series in the recirculated water circulation line.
2. blast furnace slag quenching water heat-exchange system according to claim 1, it is characterized in that the heat exchanger inlet and outlet in the pulp water circulation line arranges 4 deck valve door A, B, C, D, valve A, B one side are with the end that enters that connects circulation line, opposite side connects respectively import and the outlet of interchanger, valve C, D one side are with the end that goes out that connects circulation line, and opposite side connects respectively import and the outlet of interchanger.
3. blast furnace slag quenching water heat-exchange system according to claim 1 is characterized in that each 3 in described interchanger, pulp water topping-up pump and water circulating pump.
4. blast furnace slag quenching water heat-exchange system according to claim 1 characterized by further comprising pulp water pond (4), and the entrance and exit of pulp water circulation line all is located in the pulp water pond.
5. blast furnace slag quenching water heat-exchange system according to claim 1 is characterized in that described interchanger adopts spiral plate through type interchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202936915U CN202671552U (en) | 2012-06-21 | 2012-06-21 | Blast furnace slag flushing water heat exchange system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202936915U CN202671552U (en) | 2012-06-21 | 2012-06-21 | Blast furnace slag flushing water heat exchange system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202671552U true CN202671552U (en) | 2013-01-16 |
Family
ID=47492467
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202936915U Withdrawn - After Issue CN202671552U (en) | 2012-06-21 | 2012-06-21 | Blast furnace slag flushing water heat exchange system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202671552U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110257573A (en) * | 2019-06-21 | 2019-09-20 | 天津天钢联合特钢有限公司 | A kind of blast furnace slag quenching water waste heat recovery pipe road system |
-
2012
- 2012-06-21 CN CN2012202936915U patent/CN202671552U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110257573A (en) * | 2019-06-21 | 2019-09-20 | 天津天钢联合特钢有限公司 | A kind of blast furnace slag quenching water waste heat recovery pipe road system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130116 Effective date of abandoning: 20220318 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20130116 Effective date of abandoning: 20220318 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |