CN203257697U - System enabling blast furnace hot blast stove burnt gas to be used for blast furnace steam blower - Google Patents
System enabling blast furnace hot blast stove burnt gas to be used for blast furnace steam blower Download PDFInfo
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- CN203257697U CN203257697U CN 201320207240 CN201320207240U CN203257697U CN 203257697 U CN203257697 U CN 203257697U CN 201320207240 CN201320207240 CN 201320207240 CN 201320207240 U CN201320207240 U CN 201320207240U CN 203257697 U CN203257697 U CN 203257697U
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- blast furnace
- blower
- ammoniacal liquor
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Abstract
The utility model relates to a system enabling blast furnace hot blast stove burnt gas to be used for a blast furnace steam blower. The system enabling the blast furnace hot blast stove burnt gas to be used for the blast furnace steam blower mainly comprises an ammonia water working medium circulating system, an ammonia water turbine, a steam turbine of a blast furnace blower system and the blower of the blast furnace blower system. The ammonia water turbine, the steam turbine of the blast furnace blower system and the blower of the blast furnace blower system are coaxially arranged and coaxial in operation. The blast furnace hot blast stove burnt gas serves as a heat source, so that liquid ammonia water is heated to gaseous ammonia water with high temperature and high pressure, the ammonia water turbine is driven to rotate by the gaseous ammonia water with high temperature and high pressure, the steam turbine of the blast furnace blower system and the blower of the blast furnace blower system are driven to rotate coaxially, wherein the steam turbine and the blower are coaxially arranged with the ammonia water turbine, and air is blown into a blast furnace by the blower. Therefore, the capacity of the blast furnace blower is enhanced, so that sole investment does not need to be conducted on an electric generating device used for recycling the rotary mechanical energy of the ammonia water turbine, and initial investment cost and operation maintenance cost are greatly reduced.
Description
Technical field
The utility model relates to a kind of system that utilizes of blast furnace and hot blast cupola combustion waste gas thermal source, is specifically related to a kind of system that blast furnace and hot blast cupola combustion waste gas thermal source is used for the blast furnace steam blower.
Background technique
Blast furnace and hot blast cupola combustion waste gas is large-minded, contains larger heat energy.But because temperature is lower, the thermal source grade is low, and how to utilize efficiently is a difficult problem.Adopt the electricity-generating method of Rankine cycle electricity-generating method or ammonia-water mixture circulation, all may cause because generating efficiency is low to drop into to be difficult to reclaim or problem that payoff period is long.
The model utility content
The technical problems to be solved in the utility model is the defects that overcomes prior art, provide a kind of blast furnace and hot blast cupola combustion waste gas thermal source to be used for the system of blast furnace steam blower, utilize existing blast furnace steam blower can reclaim expeditiously blast furnace and hot blast cupola combustion waste gas thermal source, do not need the sole investment construction system, greatly reduce initial investment cost and operation expense.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of blast furnace and hot blast cupola combustion waste gas is used for the system of blast furnace steam blower, it is characterized in that: mainly comprise steam turbine and the blower of the ammonia-water mixture circulatory system, ammoniacal liquor turbine, blast furnace blower system, and steam turbine and the coaxial setting of blower and the coaxial operation of ammoniacal liquor turbine and blast furnace blower system;
Aqua ammonia pump, cooling system and heat-exchange system are set in the ammonia-water mixture circulatory system; Blast furnace and hot blast cupola combustion exhaust gas recirculation passage and high pressure aqua ammonia channel parallel in heat-exchange system; The entrance point of blast furnace and hot blast cupola combustion exhaust gas recirculation passage is communicated with the outlet of the high-temperature flue gas of hot blast stove, and outlet end is communicated with the hot blast stove chimney; The entrance point of high pressure aqua ammonia passage is communicated with the outlet end of aqua ammonia pump, and the outlet end of high pressure aqua ammonia passage is connected with the ammoniacal liquor import of ammoniacal liquor turbine; Cooling water circulation passage and low pressure ammoniacal liquor channel parallel in cooling system, the entrance point of low pressure ammoniacal liquor passage is connected with the outlet of the ammoniacal liquor of ammoniacal liquor turbine, and the outlet end of low pressure ammoniacal liquor passage is communicated with the entrance point of aqua ammonia pump.
By technique scheme, the gas input port of blower is communicated with atmosphere, and the pressurized air exhaust port of blower is communicated with hot blast stove.
By technique scheme, the feed-water end of cooling water circulation passage and backwater end all are communicated with the external refrigeration tower.
By technique scheme, described steam turbine pressurized gas inlet openings is communicated with drum, and the low pressure steam exhaust port is communicated with condenser.
With blast furnace and hot blast cupola combustion waste gas as thermal source, liquid ammoniacal liquor is heated into the gaseous state ammoniacal liquor of High Temperature High Pressure, the gaseous state ammoniacal liquor of High Temperature High Pressure is sent into the ammoniacal liquor turbine and is promoted the rotation of ammoniacal liquor turbine, steam turbine and the coaxial setting of blower of ammoniacal liquor turbine and blast furnace blower system, the operation of the common belt driven blower of ammoniacal liquor turbine and steam turbine, and by blower to blast furnace air.
By technique scheme, blast furnace and hot blast cupola combustion waste gas is heated into liquid ammoniacal liquor by the ammonia-water mixture circulatory system gaseous state ammoniacal liquor of High Temperature High Pressure as the thermal source input ammonia-water mixture circulatory system; In the described ammonia-water mixture circulatory system, aqua ammonia pump, cooling system and heat-exchange system are set, blast furnace and hot blast cupola combustion waste gas enters heat-exchange system, by heat exchange, liquid ammoniacal liquor is heated into the gaseous state ammoniacal liquor of High Temperature High Pressure, the gaseous state ammoniacal liquor of the High Temperature High Pressure of discharging from heat-exchange system is sent into the ammoniacal liquor turbine, promotes the rotation of ammoniacal liquor turbine; Low-pressure low-temperature ammoniacal liquor and the weary ammonia of discharging from the ammoniacal liquor turbine are cooled to liquid ammoniacal liquor through cooling system, send into by the aqua ammonia pump supercharging gaseous state ammoniacal liquor that heat-exchange system is heated into High Temperature High Pressure again, the gaseous state ammoniacal liquor of High Temperature High Pressure is sent to again promotes the rotation of ammoniacal liquor turbine in the ammoniacal liquor turbine.
By technique scheme, the gas of combustion of discharging after heat exchange from the ammonia-water mixture circulatory system drains into the hot blast stove chimney.
By technique scheme, described blower sucks atmosphere, and will discharge pressurized air and deliver to hot blast stove.
By technique scheme, described steam turbine sucks the high pressure steam from drum, and the low pressure steam after turbine is drained into condenser.
Core of the present utility model is: steam turbine and the coaxial setting of blower of ammoniacal liquor turbine and blast furnace blower system, the common belt driven blower operation of ammoniacal liquor turbine and steam turbine, and by blower to blast furnace air, be not limited in this scheme and use the ammoniacal liquor turbine, can realize technique of the present utility model as steam turbine and the coaxial setting of blower of the turbine installation that adopts the working medium such as water, freon or other forms of energy conversion device and blast furnace blower system; The thermal source of heat-exchange system also is not limited to and adopts useless flue gas thermal source to carry out heat exchange, and blast furnace and hot blast cupola combustion waste gas thermal source and other flue gases too can.
Working principle of the present utility model is: blast furnace and hot blast cupola combustion waste gas is used for blast furnace air with the steam turbine joint work, from the gas of combustion of blast funnace hot blast stove as thermal source, liquid ammoniacal liquor is heated into the gaseous state ammoniacal liquor of High Temperature High Pressure, the gaseous state ammoniacal liquor of High Temperature High Pressure promotes to rotate with the steam turbine of blast furnace blower system and the coaxial ammoniacal liquor turbine of blower, and by blower to blast furnace air.Like this, only need to strengthen the ability of blast furnace blower, do not need sole investment to be used to reclaim the power generating equipment of ammoniacal liquor turbine rotating mechanical energy, greatly reduce initial investment cost and operation expense.
Description of drawings
Fig. 1 is system architecture and the process flow diagram that blast furnace and hot blast cupola combustion waste gas of the present utility model is used for the blast furnace steam blower.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing 1 and embodiment, but do not limit the utility model.
Fig. 1 is a kind of mode of execution that blast furnace and hot blast cupola combustion waste gas is used for the system of blast furnace steam blower, it is characterized in that: mainly comprise steam turbine 2 and the blower 4 of the ammonia-water mixture circulatory system 1, ammoniacal liquor turbine 3, blast furnace blower system, and steam turbine 2 and the air blast 4 coaxial settings of machine and the coaxial operation of ammoniacal liquor turbine 3 and blast furnace blower system;
Aqua ammonia pump 1.2, cooling system 1.1 and heat-exchange system 1.3 are set in the ammonia-water mixture circulatory system 1; Blast furnace and hot blast cupola combustion exhaust gas recirculation passage and high pressure aqua ammonia channel parallel in heat-exchange system 1.3; The entrance point of blast furnace and hot blast cupola combustion exhaust gas recirculation passage is communicated with the outlet of the high-temperature flue gas of hot blast stove, and outlet end is communicated with the hot blast stove chimney; The entrance point of high pressure aqua ammonia passage is communicated with the outlet end of aqua ammonia pump 1.2, and the outlet end of high pressure aqua ammonia passage is connected with the ammoniacal liquor import of ammoniacal liquor turbine 3; Cooling water circulation passage and low pressure ammoniacal liquor channel parallel in cooling system 1.1, the entrance point of low pressure ammoniacal liquor passage is connected with the outlet of the ammoniacal liquor of ammoniacal liquor turbine 3, and the outlet end of low pressure ammoniacal liquor passage is communicated with the entrance point of aqua ammonia pump 1.2.
The gas input port of blower 4 is communicated with atmosphere, and the pressurized air exhaust port of blower 4 is communicated with hot blast stove.
By technique scheme, the feed-water end of cooling water circulation passage and backwater end all are communicated with the external refrigeration tower.
By technique scheme, described steam turbine 2 pressurized gas inlet openings are communicated with drum, and the low pressure steam exhaust port is communicated with condenser.
As shown in Figure 1, with blast furnace and hot blast cupola combustion waste gas as thermal source, liquid ammoniacal liquor is heated into the gaseous state ammoniacal liquor of High Temperature High Pressure, the gaseous state ammoniacal liquor of High Temperature High Pressure is sent into ammoniacal liquor turbine 3 and is promoted 3 rotations of ammoniacal liquor turbine, steam turbine 2 and the coaxial setting of blower 4 of ammoniacal liquor turbine 3 and blast furnace blower system, ammoniacal liquor turbine 2 and common belt driven blower 4 operations of steam turbine 2, and give blast furnace air by blower 4.
By technique scheme, blast furnace and hot blast cupola combustion waste gas as the thermal source input ammonia-water mixture circulatory system 1, is heated into liquid ammoniacal liquor by the ammonia-water mixture circulatory system 1 the gaseous state ammoniacal liquor of High Temperature High Pressure; Interior aqua ammonia pump 1.2, cooling system 1.1 and the heat-exchange system 1.3 of arranging of the described ammonia-water mixture circulatory system 1, blast furnace and hot blast cupola combustion waste gas enters heat-exchange system 1.3, by heat exchange, liquid ammoniacal liquor is heated into the gaseous state ammoniacal liquor of High Temperature High Pressure, the gaseous state ammoniacal liquor of the High Temperature High Pressure of discharging from heat-exchange system 1.3 is sent into ammoniacal liquor turbine 3, promotes 3 rotations of ammoniacal liquor turbine; Low-pressure low-temperature ammoniacal liquor and the weary ammonia of discharging from ammoniacal liquor turbine 3 are cooled to liquid ammoniacal liquor through cooling system 1.1, send into by aqua ammonia pump 1.2 superchargings the gaseous state ammoniacal liquor that heat-exchange system 1.3 is heated into High Temperature High Pressure again, the gaseous state ammoniacal liquor of High Temperature High Pressure is sent to again promotes the rotation of ammoniacal liquor turbine in ammoniacal liquor turbine 3.
By technique scheme, by technique scheme, the useless flue gas of discharging from the ammonia-water mixture circulatory system 1 sends back to the hot blast stove chimney.
By technique scheme, described blower 4 sucks atmosphere, and will discharge pressurized air and deliver to hot blast stove.
By technique scheme, the high pressure steam that described steam turbine 2 sucks from drum, and the low pressure steam after turbine is drained into condenser.
Core of the present utility model is: steam turbine and the coaxial setting of blower of ammoniacal liquor turbine and blast furnace blower system, the common belt driven blower operation of ammoniacal liquor turbine and steam turbine, and by blower to blast furnace air, be not limited in this scheme and use the ammoniacal liquor turbine, can realize the utility model as steam turbine and the coaxial setting of blower of the turbine installation that adopts the working medium such as water, freon or other forms of energy conversion device and blast furnace blower system; The thermal source of heat-exchange system also is not limited to and adopts useless flue gas thermal source to carry out heat exchange, and blast furnace and hot blast cupola combustion waste gas thermal source and other flue gases too can.
Working principle of the present utility model is: blast furnace and hot blast cupola combustion waste gas is used for blast furnace air with the steam turbine joint work, from the gas of combustion of blast funnace hot blast stove as thermal source, liquid ammoniacal liquor is heated into the gaseous state ammoniacal liquor of High Temperature High Pressure, the gaseous state ammoniacal liquor of High Temperature High Pressure promotes to rotate with the steam turbine of blast furnace blower system and the coaxial ammoniacal liquor turbine of blower, and by blower to blast furnace air.Like this, only need to strengthen the ability of blast furnace blower, do not need sole investment to be used to reclaim the power generating equipment of ammoniacal liquor turbine rotating mechanical energy, greatly reduce initial investment cost and operation expense.
Simultaneously, blast furnace and hot blast cupola combustion waste gas is used for blast furnace air with the steam turbine joint work, blast furnace and hot blast cupola combustion waste gas and steam turbine are comprehensively entered same turbine system, thereby simplified system architecture, and improved the inconvenience that each energy utilization system is set separately, thereby efficiency of energy utilization is higher.
Claims (4)
1. a blast furnace and hot blast cupola combustion waste gas is used for the system of blast furnace steam blower, it is characterized in that: mainly comprise steam turbine and the blower of the ammonia-water mixture circulatory system, ammoniacal liquor turbine, blast furnace blower system, and steam turbine and the coaxial setting of blower and the coaxial operation of ammoniacal liquor turbine and blast furnace blower system;
Aqua ammonia pump, cooling system and heat-exchange system are set in the ammonia-water mixture circulatory system; Blast furnace and hot blast cupola combustion exhaust gas recirculation passage and high pressure aqua ammonia channel parallel in heat-exchange system; The entrance point of blast furnace and hot blast cupola combustion exhaust gas recirculation passage is communicated with the outlet of the high-temperature flue gas of hot blast stove, and outlet end is communicated with the hot blast stove chimney; The entrance point of high pressure aqua ammonia passage is communicated with the outlet end of aqua ammonia pump, and the outlet end of high pressure aqua ammonia passage is connected with the ammoniacal liquor import of ammoniacal liquor turbine; Cooling water circulation passage and low pressure ammoniacal liquor channel parallel in cooling system, the entrance point of low pressure ammoniacal liquor passage is connected with the outlet of the ammoniacal liquor of ammoniacal liquor turbine, and the outlet end of low pressure ammoniacal liquor passage is communicated with the entrance point of aqua ammonia pump.
2. system according to claim 1, it is characterized in that: the gas input port of blower is communicated with atmosphere, and the pressurized air exhaust port of blower is communicated with hot blast stove.
3. system according to claim 1 and 2, it is characterized in that: the feed-water end of cooling water circulation passage and backwater end all are communicated with the external refrigeration tower.
4. system according to claim 1 and 2 is characterized in that: described steam turbine pressurized gas inlet openings is communicated with drum, and the low pressure steam exhaust port is communicated with condenser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320207240 CN203257697U (en) | 2013-04-23 | 2013-04-23 | System enabling blast furnace hot blast stove burnt gas to be used for blast furnace steam blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320207240 CN203257697U (en) | 2013-04-23 | 2013-04-23 | System enabling blast furnace hot blast stove burnt gas to be used for blast furnace steam blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203257697U true CN203257697U (en) | 2013-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320207240 Expired - Lifetime CN203257697U (en) | 2013-04-23 | 2013-04-23 | System enabling blast furnace hot blast stove burnt gas to be used for blast furnace steam blower |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121048A (en) * | 2013-04-23 | 2014-10-29 | 中冶南方工程技术有限公司 | System and method for applying blast furnace hot blast stove burnt gas to blast furnace steam blower |
| CN112901286A (en) * | 2021-01-18 | 2021-06-04 | 东北大学 | System and method for driving blast furnace blower |
-
2013
- 2013-04-23 CN CN 201320207240 patent/CN203257697U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104121048A (en) * | 2013-04-23 | 2014-10-29 | 中冶南方工程技术有限公司 | System and method for applying blast furnace hot blast stove burnt gas to blast furnace steam blower |
| CN112901286A (en) * | 2021-01-18 | 2021-06-04 | 东北大学 | System and method for driving blast furnace blower |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131030 |
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| CX01 | Expiry of patent term |