CN106825472A - Continuous cast mold accident water safety interlock system and its control method - Google Patents
Continuous cast mold accident water safety interlock system and its control method Download PDFInfo
- Publication number
- CN106825472A CN106825472A CN201710196423.9A CN201710196423A CN106825472A CN 106825472 A CN106825472 A CN 106825472A CN 201710196423 A CN201710196423 A CN 201710196423A CN 106825472 A CN106825472 A CN 106825472A
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- water
- accident
- water pump
- continuous cast
- cast mold
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/14—Plants for continuous casting
- B22D11/148—Safety arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/16—Controlling or regulating processes or operations
- B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Water Turbines (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of continuous cast mold accident water safety interlock system and its control method, including water pump, pond, accident water tower, Pneumatic butterfly valve, check-valves and PLC, pond and water pump are sequentially connected to crystallizer water route by pipeline, accident water tower lower section is provided with water inlet pipe and outlet pipe, pipeline connection between the outlet pipe other end and water pump and crystallizer water route, Pneumatic butterfly valve and check-valves are successively set on outlet pipe along water (flow) direction, and water pump and Pneumatic butterfly valve are connected with PLC.The electric logic that need not install various cumbersome detecting instruments and complexity using the safety interlocking judges control, it is simple and practical, when both can guarantee that jump electricity, accident water energy directly reaches continuous cast mold by pipeline, and in water pump body impeller failure, when motor runs well, because pressure of supply water is not enough, accident water also can directly reach continuous cast mold due to Action of Gravity Field by pipeline, realize automatic interlock control, improve the security of continuous cast mold.
Description
Technical field
The present invention relates to continuous cast mold technical field, more particularly to a kind of continuous cast mold accident water safety interlocking system
System and its control method.
Background technology
Continuous cast mold is conticaster " heart ", and continuous cast mold water is then " blood " therein, and it is except to steel
The quality of product has a major impact, while the safe handling also to continuous cast mold is played and its important effect, runs into burst
Jumping electricity causes the water shortage to burn out crystallizer, if recover to send water after water shortage in short-term again, can more cause the pernicious peace such as fire explosion
Full accident, so most of steel mill can all be specifically manufactured an accident water tower water storage, and is connected, as continuous casting knot with pipeline
The burst of brilliant device water cut off the water supply after accident emergency water.But the security appliance of existing continuous cast mold accident water is interlocked and unreliable：
Some to lose the valve that gas is automatically opened up by from dead electricity, when occurring to jump electrification, valve is automatically opened up；It is some electric using jumping
Signal come trigger diesel engine automatic recover feed pump power, while open accident penstock.
But when water pump body impeller failure, when motor runs well, security appliance interlocking cannot just differentiate, it is necessary to increase
Plus other detecting instruments (such as pressure sensor, flow sensor) increase interlocking, process and its complexity again.
The content of the invention
The technical problems to be solved by the invention are：In order to overcome deficiency of the prior art, the present invention to provide a kind of company
Casting crystallizer accident water safety interlock system and its control method, various cumbersome detections need not be installed using the safety interlocking
The electric logic of instrument and complexity judges control, simple and practical, and when both can guarantee that jump electricity, accident water energy is directly reached by pipeline
Continuous cast mold, and in water pump body impeller failure, when motor runs well, because pressure of supply water is not enough, accident water due to
Action of Gravity Field also can directly reach continuous cast mold by pipeline.
The present invention solves its technical problem technical scheme to be taken：A kind of continuous cast mold accident water safety interlocking
System, including water pump, pond, accident water tower, Pneumatic butterfly valve, check-valves and PLC, the pond and water pump pass through pipeline
Crystallizer water route is sequentially connected to, the accident water tower lower section is provided with water inlet pipe and outlet pipe, the outlet pipe other end and water
Pipeline connection between pump and crystallizer water route, the Pneumatic butterfly valve and check-valves are successively set on the water outlet along water (flow) direction
Guan Shang, the water pump and Pneumatic butterfly valve are connected with the PLC.
A kind of control method of continuous cast mold accident water safety interlock system, it is characterised in that：Including above-mentioned continuous casting
Crystallizer accident water safety interlock system, and comprise the following steps,
The water pump for starting continuous cast mold is controlled first with PLC, the water in pond is entered continuous casting knot
In brilliant device；The time delay certain time interval T after continuous cast mold water pump is started, opens accident water Pneumatic butterfly valve, by continuous cast mold
The pressure that water pump supplies water withstands check-valves, the accident water in accident water tower is not influenceed and freely falling body by gravity；
When there is jumping electricity or fault of water pump, water pump output reduces or stops supplying water, and the pressure for making water pump supply water subtracts
Small, check-valves is opened, and the accident water in accident water tower is added in continuous cast mold in time through Pneumatic butterfly valve and check-valves, real
The safety interlocking of existing accident water；
When phase down water pump is produced, PLC first closes Pneumatic butterfly valve, the valve of Pneumatic butterfly valve close in place after again
Switch off the pump.
Preferably, the time T is 30s.
The beneficial effects of the invention are as follows：A kind of continuous cast mold accident water safety interlock system and its control that the present invention is provided
Method processed, the electric logic that need not install various cumbersome detecting instruments and complexity using the safety interlocking judges control, letter
Single practical, when both can guarantee that jump electricity, accident water energy directly reaches continuous cast mold by pipeline, and is damaged in water pump body impeller
Bad, when motor runs well, because pressure of supply water is not enough, accident water also can directly reach continuous casting due to Action of Gravity Field by pipeline
Crystallizer, realizes automatic interlock control, improves the security of continuous cast mold.
Brief description of the drawings
The invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 is the structural representation of preferred embodiment；
Fig. 2 is the time diagram of control method of the present invention.
In figure：1st, crystallizer water route, 2, water pump, 3, pond, 4, accident water tower, 5, Pneumatic butterfly valve, 6, check-valves, 7, water inlet
Pipe, 8, outlet pipe.
Specific embodiment
Presently in connection with accompanying drawing, the present invention is described in detail.This figure is simplified schematic diagram, is only illustrated in a schematic way
Basic structure of the invention, therefore it only shows the composition relevant with the present invention.
As shown in figure 1, a kind of continuous cast mold accident water safety interlock system of the invention, including water pump 2, pond 3, thing
Therefore water tower 4, Pneumatic butterfly valve 5, check-valves 6 and PLC, the pond 3 and water pump 2 are sequentially connected to crystallizer by pipeline
Water route 1, the lower section of the accident water tower 4 is provided with water inlet pipe 7 and outlet pipe 8, the other end of the outlet pipe 8 and water pump 2 and crystallizer
Pipeline connection between water route 1, the Pneumatic butterfly valve 5 and check-valves 6 are successively set on the outlet pipe 8 along water (flow) direction,
The water pump 2 and Pneumatic butterfly valve 5 are connected with the PLC.
As shown in Fig. 2 a kind of control method of continuous cast mold accident water safety interlock system, it is characterised in that：Including
Above-mentioned continuous cast mold accident water safety interlock system, and comprise the following steps,
As shown in Fig. 2 Programs section 44, crystallizer starting mode of pump button is pressed first, be controlled using PLC
Start the water pump 2 of continuous cast mold, the water in pond 3 is entered in continuous cast mold；Prolong after continuous cast mold water pump 2 is started
When certain time interval T=30S, i.e. time delay 30S after open accident water Pneumatic butterfly valve 5, by the pressure that continuous cast mold water pump 2 supplies water
Check-valves 6 is withstood, the accident water in accident water tower 4 is not influenceed and freely falling body by gravity；
When there is jumping electricity or 2 failure of water pump, the output of water pump 2 reduces or stops supplying water, the pressure for making water pump 2 supply water
Reduce, check-valves 6 is opened, and the accident water in accident water tower 4 is added to continuous casting crystallining in time through Pneumatic butterfly valve 5 and check-valves 6
In device, the safety interlocking of accident water is realized；
As shown in Fig. 2 Programs section 45 and 46, when phase down water pump 2 is produced, PLC first closes Pneumatic butterfly valve
5, the valve of Pneumatic butterfly valve 5 is closed and turns off water pump 2 afterwards in place, stops crystallizer water pump, it is to avoid when being closed because of water pump 2, accident
Accident water in water tower 4 enters in continuous cast mold.
With above-mentioned according to desirable embodiment of the invention as enlightenment, by above-mentioned description, related staff
Various changes and amendments can be carried out in without departing from the scope of the present invention completely.The technical scope of this invention is not
It is confined to the content on specification, it is necessary to its technical scope is determined according to right.
Claims (3)
1. a kind of continuous cast mold accident water safety interlock system, it is characterised in that：Including water pump (2), pond (3), accident water
Tower (4), Pneumatic butterfly valve (5), check-valves (6) and PLC, the pond (3) and water pump (2) are sequentially connected to by pipeline
Crystallizer water route (1), accident water tower (4) lower section is provided with water inlet pipe (7) and outlet pipe (8), outlet pipe (8) other end
Be connected with the pipeline between water pump (2) and crystallizer water route (1), the Pneumatic butterfly valve (5) and check-valves (6) along water (flow) direction according to
Secondary to be arranged on the outlet pipe (8), the water pump (2) and Pneumatic butterfly valve (5) are connected with the PLC.
2. a kind of control method of continuous cast mold accident water safety interlock system, it is characterised in that：Including such as claim 1 institute
The continuous cast mold accident water safety interlock system stated, and comprise the following steps,
The water pump (2) for starting continuous cast mold is controlled first with PLC, the water in pond (3) is entered continuous casting
In crystallizer；Starting continuous cast mold water pump (2) time delay certain time interval T afterwards, accident water Pneumatic butterfly valve (5) is being opened, by even
The pressure that casting crystallizer water pump (2) is supplied water withstands check-valves (6), the accident water in accident water tower (4) is not subject to gravity shadow
Ring and freely falling body；
When there is jumping electricity or water pump (2) failure, water pump (2) output reduces or stops supplying water, the pressure for making water pump (2) supply water
Power reduces, and check-valves (6) is opened, and the accident water in accident water tower (4) is supplemented in time through Pneumatic butterfly valve (5) and check-valves (6)
To in continuous cast mold, the safety interlocking of accident water is realized；
When phase down water pump (2) are produced, PLC first closes Pneumatic butterfly valve (5), and the valve of Pneumatic butterfly valve (5) is closed and arrived
Water pump (2) is turned off behind position.
3. the control method of continuous cast mold accident water safety interlock system as claimed in claim 2, it is characterised in that：It is described
Time T is 30s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710196423.9A CN106825472B (en) | 2017-03-29 | 2017-03-29 | Continuous cast mold accident water safety interlock system and its control method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710196423.9A CN106825472B (en) | 2017-03-29 | 2017-03-29 | Continuous cast mold accident water safety interlock system and its control method |
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| CN106825472A true CN106825472A (en) | 2017-06-13 |
| CN106825472B CN106825472B (en) | 2019-12-03 |
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| CN201710196423.9A Active CN106825472B (en) | 2017-03-29 | 2017-03-29 | Continuous cast mold accident water safety interlock system and its control method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110238358A (en) * | 2019-05-23 | 2019-09-17 | 首钢京唐钢铁联合有限责任公司 | Continuous casting crystallining water system control method, device and electronic equipment |
| CN111926132A (en) * | 2020-08-04 | 2020-11-13 | 鞍钢股份有限公司 | Method for rapidly judging damage of check valve of blast furnace water pump |
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| CN111926132A (en) * | 2020-08-04 | 2020-11-13 | 鞍钢股份有限公司 | Method for rapidly judging damage of check valve of blast furnace water pump |
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| CN106825472B (en) | 2019-12-03 |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20190531 Address after: 213000 No. 1 Zhongwu Avenue, Changzhou City, Jiangsu Province Applicant after: Zhongtian Iron Steel Group Co.,Ltd. Applicant after: Changzhou Bangyi Iron and Steel Co., Ltd. Address before: 213000 No. 1 Zhongwu Avenue, Changzhou City, Jiangsu Province Applicant before: Zhongtian Iron Steel Group Co.,Ltd. |
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