CN205821366U - A kind of blast furnace cold cut water supply system - Google Patents
A kind of blast furnace cold cut water supply system Download PDFInfo
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- CN205821366U CN205821366U CN201620790792.1U CN201620790792U CN205821366U CN 205821366 U CN205821366 U CN 205821366U CN 201620790792 U CN201620790792 U CN 201620790792U CN 205821366 U CN205821366 U CN 205821366U
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- water pump
- electric water
- outlet pipe
- blast furnace
- speed sensor
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Abstract
This utility model relates to blast furnace cold cut water supply field, particularly a kind of blast furnace cold cut water supply system.Use PLC control system, according to blast furnace cooling stave requirement, set ductwork pressure higher limit and low pressure limit value, compared with setting value by manifold pressure transmitter measured value, edit routine, when observed pressure is less than the dead electricity junction closure of lower limit or power supply, PLC exports a switching value, makes diesel engine starting；When observed pressure disconnects higher than the dead electricity contact of higher limit and power supply, PLC output makes diesel engine stop, it is ensured that ductwork pressure, makes blast-furnace cooled water system properly functioning.
Description
Technical field
This utility model relates to blast furnace cold cut water supply field, particularly a kind of blast furnace cold cut water supply system.
Background technology
In large-scale steel mill, from the point of view of a blast furnace being currently running, blast furnace cooling stave cooling water is definitely can not to break
Water, otherwise, will result in serious equipment breakdown, bring massive losses to enterprise.
General blast furnace has a set of independent closed soft water blood circulation, and soft water returns to circulation through furnace wall cooling water pipe
Water system, after reaching ideal temperature by air cooler cooling, then is transported to blast furnace cooling stave pipe network by circulating pump raising pressure,
Guarantee that blast furnace safety produces.
Because water circulating pump drives by motor, once factory's fault outage, water pump is stopped transport, and will result in and cuts off the water supply.Conventional system
System is all equipped with a diesel engine as emergency plant.If but water pump goes to manually start diesel engine after stopping transport again, will necessarily
Delayed, cause moment to cut off the water supply.
Accordingly, it would be desirable to be set to automatically start by the emergency starting mode of diesel engine.Major part conventional system all passes through
PLC system is by the dead electricity contact interlocking of the enabled instruction of diesel engine with power supply, and once power loss junction closure, system receives
Dead electricity instructs, and i.e. starts diesel engine.But in actual applications, also have a kind of situation, it is simply that if power loss contact fault, lose
Can not close voluntarily after electricity, PLC system is not connected to instruction, and diesel engine can be able to not be missed an opportunity because of a delay equally rapidly from opening.
Summary of the invention
Technical problem to be solved in the utility model is: how to guarantee that blast furnace cold cut water does not haves interruption.
This utility model be the technical scheme is that a kind of blast furnace cold cut water supply system, and the first electric water pump passes through
After first check valve, pipeline connects main water outlet pipe, and the second electric water pump connects main water outlet pipe by pipeline after the second check valve, the
Three electric water pumps connect main water outlet pipe by pipeline after the 3rd check valve, and the 4th electric water pump is by pipeline after the 4th check valve even
Connecing main water outlet pipe, diesel powered water pump is connected in main water outlet pipe by the 5th check valve, and main water outlet pipe is by outlet pipe even
Receive blast furnace and need cold cut position, the first electric water pump has the First Speed sensing rotating situation for detecting the first electric water pump
Device, the second electric water pump has the second speed sensor rotating situation for detecting the second electric water pump, the 3rd electric water pump
On have for detection the 3rd electric water pump rotate situation third speed sensor, the 4th electric water pump has for detection the 4th
Electric water pump rotates the fourth speed sensor of situation, and outlet pipe is provided with pressure transducer, the first electric water pump and second
Electric water pump is powered by the first power supply, and the 3rd electric water pump and the 4th electric water pump are powered by second source, and first is electronic
Water pump, the second electric water pump, the 3rd electric water pump, the 4th electric water pump, First Speed sensor, second speed sensor,
Three velocity sensors, fourth speed sensor, diesel powered water pump, the pressure transducer signal of telecommunication connect PLC system.
The beneficial effects of the utility model are: this utility model is able to ensure that cold cut water will not be interrupted, it is ensured that blast furnace is pacified
Full stable operation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Wherein, 1, First Speed sensor, the 2, first electric water pump, 3, second speed sensor, the 4, second electric water pump,
5, third speed sensor, the 6, the 3rd electric water pump, 7, fourth speed sensor, the 8, the 4th electric water pump, 9, diesel powered
Water pump, the 10, first check valve, the 11, second check valve, the 12, the 3rd check valve, the 13, the 4th check valve, the 14, the 5th check valve,
15, main water outlet pipe, 16, pressure transducer, 17, outlet pipe, 18, blast furnace need cold cut position.
Detailed description of the invention
The blast furnace of No. 1800 blast furnaces of Shanxi Taiyuan Iron and Steel Co. energy source and power head factory needs cold cut position i.e. blast furnace cooling stave and furnace bottom cold
But water pipe provides power to carry out cold cut water water supply by four electric water pumps and a diesel powered water pump.First electric water pump
Connecting main water outlet pipe by pipeline after the first check valve, the second electric water pump connects main water outlet by pipeline after the second check valve
Pipe, the 3rd electric water pump connects main water outlet pipe by pipeline after the 3rd check valve, and the 4th electric water pump is by after the 4th check valve
Pipeline connects main water outlet pipe, and diesel powered water pump is connected in main water outlet pipe by the 5th check valve, and main water outlet pipe is passed through
Water pipe is connected to blast furnace and needs cold cut position, and the first electric water pump has the first speed rotating situation for detecting the first electric water pump
Degree sensor, the second electric water pump has the second speed sensor rotating situation for detecting the second electric water pump, the 3rd electricity
There is the third speed sensor rotating situation for detection the 3rd electric water pump on dynamic water pump, the 4th electric water pump has for examining
Survey the 4th electric water pump and rotate the fourth speed sensor of situation, outlet pipe is provided with pressure transducer, the first electric water pump
Being powered by the first power supply with the second electric water pump, the 3rd electric water pump and the 4th electric water pump are powered by second source, the
One electric water pump, the second electric water pump, the 3rd electric water pump, the 4th electric water pump, First Speed sensor, second speed sense
Device, third speed sensor, fourth speed sensor, diesel powered water pump, the pressure transducer signal of telecommunication connect PLC system.
Under normal circumstances, being supplied water by the first electric water pump and the 3rd electric water pump, other water pump is standby all in closing
By state, if the first power failure, then supplied water by the 3rd electric water pump and the 4th electric water pump, if second
Power failure, then supplied water by the first electric water pump and the second electric water pump；If there is event in the first electric water pump
Barrier, starts the second electric water pump, if the 3rd electric water pump breaks down, starts the 4th electric water pump and supplies water；Pass through
When electric power supplies water, two electric water pumps will be kept to carry out supplying water with satisfied water supply needs, pressure transducer is in real time pressure in real time
Power is delivered to the preset pressure of PLC with PLC and compares, if real-time pressure is in pre-set pressure range, it is not necessary to start diesel engine
Power water pump, if be detected that real-time pressure is less than preset pressure, illustrates that electric water pump cannot meet water supply needs, and PLC controls
Diesel powered water pump supplies water, and when real-time pressure is more than preset pressure, illustrates that electric water pump recovers normal, closes diesel oil motor-driven
Power water pump.
Claims (1)
1. a blast furnace cold cut water supply system, it is characterised in that: the first electric water pump is connected by pipeline after the first check valve
Main water outlet pipe, the second electric water pump connects main water outlet pipe by pipeline after the second check valve, and the 3rd electric water pump is single by the 3rd
After valve, pipeline connects main water outlet pipe, and the 4th electric water pump connects main water outlet pipe by pipeline after the 4th check valve, and diesel oil is motor-driven
Power water pump is connected in main water outlet pipe by the 5th check valve, and main water outlet pipe is connected to blast furnace by outlet pipe and needs cold cut position,
There is the First Speed sensor rotating situation for detecting the first electric water pump on first electric water pump, the second electric water pump has
Rotate the second speed sensor of situation for detecting the second electric water pump, the 3rd electric water pump has for detection the 3rd electronic
Water pump rotates the third speed sensor of situation, the 4th electric water pump has and rotates the of situation for detection the 4th electric water pump
Four velocity sensors, outlet pipe are provided with pressure transducer, the first electric water pump and the second electric water pump by the first power supply
Power supply, the 3rd electric water pump and the 4th electric water pump powered by second source, the first electric water pump, the second electric water pump, the
Three electric water pumps, the 4th electric water pump, First Speed sensor, second speed sensor, third speed sensor, fourth speed
Sensor, diesel powered water pump, the pressure transducer signal of telecommunication connect PLC system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620790792.1U CN205821366U (en) | 2016-07-26 | 2016-07-26 | A kind of blast furnace cold cut water supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620790792.1U CN205821366U (en) | 2016-07-26 | 2016-07-26 | A kind of blast furnace cold cut water supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205821366U true CN205821366U (en) | 2016-12-21 |
Family
ID=57561683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620790792.1U Active CN205821366U (en) | 2016-07-26 | 2016-07-26 | A kind of blast furnace cold cut water supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205821366U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110804683A (en) * | 2019-11-08 | 2020-02-18 | 山西太钢不锈钢股份有限公司 | Power-loss emergency device and method for blast furnace cooling water system |
| CN111102840A (en) * | 2019-12-30 | 2020-05-05 | 广西南国铜业有限责任公司 | Smelt bigeminal furnace circulating water system |
-
2016
- 2016-07-26 CN CN201620790792.1U patent/CN205821366U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110804683A (en) * | 2019-11-08 | 2020-02-18 | 山西太钢不锈钢股份有限公司 | Power-loss emergency device and method for blast furnace cooling water system |
| CN111102840A (en) * | 2019-12-30 | 2020-05-05 | 广西南国铜业有限责任公司 | Smelt bigeminal furnace circulating water system |
| CN111102840B (en) * | 2019-12-30 | 2020-09-15 | 广西南国铜业有限责任公司 | Smelt bigeminal furnace circulating water system |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |