CN201581091U - Backwater flow device of water-cooling airtight box - Google Patents
Backwater flow device of water-cooling airtight box Download PDFInfo
- Publication number
- CN201581091U CN201581091U CN2009202777743U CN200920277774U CN201581091U CN 201581091 U CN201581091 U CN 201581091U CN 2009202777743 U CN2009202777743 U CN 2009202777743U CN 200920277774 U CN200920277774 U CN 200920277774U CN 201581091 U CN201581091 U CN 201581091U
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- water
- airtight box
- backwater
- cooling
- valve
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Abstract
The utility model discloses a backwater flow device of water-cooling airtight box which belongs to the technical field of non-bell charging apparatus at top of blast furnace. The backwater flow device of water-cooling airtight box comprises a water-cooling airtight box, and an inlet pipeline; the upper part of the water-cooling airtight box is an inlet pipe and the lower part of the water-cooling airtight box is a drain pipe; the backwater flow device of water-cooling airtight box is characterized in that the inlet pipeline comprises a double-path inlet pipe, an electric regulating valve, a relief valve, a check valve, a one-way valve, an electromagnetic flowmeter, a filter, a platinum thermal resistance, a pressure gage and a pressure transmitter; the inlet pipe receives the water from a water pump chamber, passes through the check valve and the filter and then supplies water to the water-cooling airtight box through the relief valve and the electric regulating valve; the inlet pipeline is provided with the electric elements like the pressure transmitter, the pressure gage and the electromagnetic flowmeter; a backwater electromagnetic flowmeter is additionally arranged in a backwater pipeline; a backwater hopper is additionally arranged in front of the backwater electromagnetic flowmeter and a water seal is arranged behind the backwater hopper. The backwater flow device of water-cooling airtight box solves the production difficulty of blast furnace caused by that the upper water slot is plugged which leads the cooling water to overflow into the blast furnace, which effectively prevents the cooling water from overflowing and entering the blast furnace to influence normal production and safety.
Description
Technical field
The utility model belongs to blast furnace furnace roof feeder apparatus technical field, and a kind of water-cooled airtight box circling water flow rate device particularly is provided, and is applicable to the water-cooled airtight box water-cooling system in the blast furnace furnace roof feeder apparatus.
Background technology
Furnace roof water-cooled airtight box is the vitals of non-bell furnace top charging equipment, and the normal operation of this equipment is the key that guarantees that the blast furnace feeding equipment runs well.And the airtight box water-cooling system is to keep the guarantee that the airtight box internal temperature is normal, realize the airtight box trouble-free service, therefore guarantees that the operation normal reliable of water-cooling system is vital.
The open circuit water-cooling pattern is adopted in the cooling of airtight box, uses nitrogen-sealed.The temperature of regulating airtight box by the increase and decrease cooling water inflow during use guarantees that its Working environment is under the normal temps work (30 ℃-40 ℃) for a long time.Nitrogen then is used for keeping the pressure-fired of water-cooled airtight box to furnace roof, does not need to adjust significantly, only just makes heat-eliminating medium with nitrogen when cooling water system breaks down.Cooling water inflow 8m
3/ h-15m
3/ h, nitrogen flow 100m
3/ h-500m
3/ h can guarantee the normally operation under 200 ℃ of-250 ℃ of throat temperatures of water-cooled airtight box.
The water-cooled airtight box in use causes water coolant to overflow from upper flume mainly due to following two aspect reasons and enters in the stove and influence the blast furnace ordinary production: 1. nitrogen amount instability, when feeding, excessive nitrogen make cooling-water duct form vent plug increase flow resistance, reduced water displacement, water is overflowed from upper flume water, overflow in the stove; 2. the transmission of water-cooled airtight box is mainly undertaken by the rotation and two sleeve gears that fascinate.In order to guarantee that wheel casing normally moves, should be regularly to turning unit and transmitting gear filling lubricating oil.But because the control of lubricating oil consumption is inaccurate, overlubricate oil flows in the upper flume and causes impeded drainage, makes the water coolant overflow.Above reason overflows in the stove water coolant, has a strong impact on blast furnace production and safety.How to prevent that water coolant from overflowing into blast furnace is the problem that everybody is concerned about always, the utility model has proposed to improve design at this problem, is intended to the way solution that water return pipeline is set up under meter.
Summary of the invention
The purpose of this utility model is to provide a kind of water-cooled airtight box circling water flow rate device, having solved leaks in airtight box when jeopardizing blast furnace and producing, operator are difficult to find, cause upper flume to stop up, and make the water coolant overflow enter in the blast furnace thereby influence the difficult problem of blast furnace ordinary production.Preventing effectively that water coolant from overflowing enters blast furnace and influences ordinary production and safety.
The utility model is the open circuit normally open, and current are not continuously by interrupting.Can regulate cooling water flow by the aperture of control motor-driven control valve at the blast furnace Master Control Center.
The utility model comprises water-cooled airtight box, suction culvert, and water-cooled airtight box top is water inlet pipe, and the bottom is a water shoot; Suction culvert comprises two-way water inlet pipe, motor-driven control valve, reducing valve, stopping valve, check valve, magnetic flow meter, strainer, hot resistance (platinum resistance thermometer sensor), tensimeter, pressure unit; Supply water for the water-cooled airtight box by reducing valve, motor-driven control valve after water inlet pipe water receiving pump house comes water through stopping valve, strainer, suction culvert is provided with electrical elements such as pressure unit, tensimeter, magnetic flow meter; Suction culvert is to the logical water coolant of airtight box; On water return pipeline, increase the backwater magnetic flow meter, working properly for guaranteeing the backwater magnetic flow meter, increase a backwater bucket in its place ahead, establish a water seal that 3m is high thereafter, make magnetic flow meter front and back pipeline remain the flowing full amount, to guarantee accurate measurement.
The utility model is set up a cover Electromagnetic Flow metering device at water return pipeline, utilizes water inlet, backwater two cover under meter observing water quantity changing conditions, if difference is excessive, such as surpassing 2m
3/ h has illustrated the water overflow to stove, and operator are regulating pondage in time, and searches rapidly and the processing accident.
The utility model is provided with analog picture on CRT and related data shows, content comprises: the aperture of motor-driven control valve; The decompression upstream pressure; The decompression downstream pressure; Flooding velocity; Inflow temperature; Return water temperature etc.
In order to prevent that water coolant from overflowing into blast furnace, the technical process of airtight box water-cooling system is improved, on water return pipeline, increased by a cover Electromagnetic Flow and taken into account auxiliary facility.By circling water flow rate detect and with the data of flooding velocity relatively, thereby show whether have water coolant to overflow into blast furnace.When two under meters show that the backwater amounts are little more a lot of than flooding quantity, such as into and out of water yield difference greater than 2m
3Explanation has water coolant to overflow during/h.Overflow sound, light control alarm are set in Master Control Center, and operator are by regulating the aperture control water yield of motor-driven control valve, timely and effectively avoid a large amount of water coolants to overflow into blast furnace, for safety in production provides reliable assurance.
Description of drawings
Fig. 1 is a water-cooled airtight box circling water flow rate device synoptic diagram of the present utility model.Wherein, wherein, water-cooled airtight box 1, suction culvert 2, backwater bucket 3, backwater magnetic flow meter 4, water seal 5, water inlet pipe 6, water shoot 7; Hot resistance 8, stopping valve 9, strainer 10, pressure unit 11, tensimeter 12, reducing valve 13, motor-driven control valve 14, magnetic flow meter 15.
Embodiment
Fig. 1 is a kind of embodiment of the present utility model.Wherein, water-cooled airtight box 1 top is water inlet pipe 6, and the bottom is a water shoot 7; Elements such as suction culvert 2 is provided with the two-way water inlet pipe, hot resistance 8 is arranged, stopping valve 9, strainer 10, pressure unit 11 tensimeters 12, reducing valve 13, motor-driven control valve 14, magnetic flow meter 15 constitute suction culvert, to the logical water coolant of airtight box.The water-cooled airtight box 1 of no bell feeding equipment is kept normal temps by water coolant.Suction culvert 2 two-ways water inlets wherein, but one the tunnel is established the motor-driven control valve regulating pondage, and is had magnetic flow meter to carry out water flow measurement.
Owing to only under meter is set at water inlet pipe, if therefore in airtight box, leak, jeopardize blast furnace production, operator are difficult to find, become a difficult problem for a long time.This improvement is the way solution current monitoring problem that increases backwater magnetic flow meter 4 at water return pipeline.Principle is if normal into and out of two meter readings unanimities of pipe or close explanation current; If flooding velocity surpasses water flow, and differs bigger, surpass 2m
3Explanation has water to overflow to stove during/h, reports to the police automatically according to initialization system, and operator in time reduce flooding quantity, avoid leaking and getting rid of fault.In order to make backwater magnetic flow meter 4 working properly, increase a backwater bucket 3 in its place ahead, establish a high water seal 5 of 3m thereafter and make magnetic flow meter front and back pipeline remain the flowing full amount, to guarantee accurate measurement.
Claims (3)
1. a water-cooled airtight box circling water flow rate device comprises water-cooled airtight box, suction culvert, and water-cooled airtight box top is water inlet pipe, and the bottom is a water shoot; It is characterized in that suction culvert (2) comprises two-way water inlet pipe, motor-driven control valve, reducing valve, stopping valve, check valve, magnetic flow meter, strainer, hot resistance, tensimeter, pressure unit; Water inlet pipe water receiving pump house comes water through stopping valve, strainer; Suction culvert is provided with pressure unit, tensimeter, magnetic flow meter; Increase backwater magnetic flow meter (4) at water return pipeline, increase a backwater bucket (3) in backwater magnetic flow meter (4) the place ahead, backwater magnetic flow meter (4) is established a water seal (5) behind the side.
2. device according to claim 1 is characterized in that, the height of water seal (5) is 3m.
3. device according to claim 1 is characterized in that, hot resistance is a platinum resistance thermometer sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202777743U CN201581091U (en) | 2009-12-09 | 2009-12-09 | Backwater flow device of water-cooling airtight box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202777743U CN201581091U (en) | 2009-12-09 | 2009-12-09 | Backwater flow device of water-cooling airtight box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201581091U true CN201581091U (en) | 2010-09-15 |
Family
ID=42723089
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202777743U Expired - Lifetime CN201581091U (en) | 2009-12-09 | 2009-12-09 | Backwater flow device of water-cooling airtight box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201581091U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464492A (en) * | 2014-12-18 | 2015-03-25 | 柳州职业技术学院 | Water supply-drainage system fault diagnosis practical training device |
| CN107130072A (en) * | 2017-06-17 | 2017-09-05 | 北京首钢国际工程技术有限公司 | A kind of airtight box for blast furnace water cooling plant |
| CN109487025A (en) * | 2018-12-03 | 2019-03-19 | 中钢集团西安重机有限公司 | A kind of furnace roof nitrogen system |
| CN111504073A (en) * | 2020-04-29 | 2020-08-07 | 中钢集团西安重机有限公司 | Water cooling system for furnace top |
| CN115433913A (en) * | 2022-09-30 | 2022-12-06 | 江苏乐萌精密科技有限公司 | Rotary cathode water cooling system |
-
2009
- 2009-12-09 CN CN2009202777743U patent/CN201581091U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104464492A (en) * | 2014-12-18 | 2015-03-25 | 柳州职业技术学院 | Water supply-drainage system fault diagnosis practical training device |
| CN107130072A (en) * | 2017-06-17 | 2017-09-05 | 北京首钢国际工程技术有限公司 | A kind of airtight box for blast furnace water cooling plant |
| CN107130072B (en) * | 2017-06-17 | 2022-09-20 | 北京首钢国际工程技术有限公司 | Water cooling device for blast furnace airtight box |
| CN109487025A (en) * | 2018-12-03 | 2019-03-19 | 中钢集团西安重机有限公司 | A kind of furnace roof nitrogen system |
| CN109487025B (en) * | 2018-12-03 | 2023-12-19 | 中钢集团西安重机有限公司 | Furnace top nitrogen system |
| CN111504073A (en) * | 2020-04-29 | 2020-08-07 | 中钢集团西安重机有限公司 | Water cooling system for furnace top |
| CN115433913A (en) * | 2022-09-30 | 2022-12-06 | 江苏乐萌精密科技有限公司 | Rotary cathode water cooling system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100915 |