CN209652353U - Blast furnace clean circulating water system - Google Patents
Blast furnace clean circulating water system Download PDFInfo
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- CN209652353U CN209652353U CN201920258389.8U CN201920258389U CN209652353U CN 209652353 U CN209652353 U CN 209652353U CN 201920258389 U CN201920258389 U CN 201920258389U CN 209652353 U CN209652353 U CN 209652353U
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- pump group
- high pressure
- blast furnace
- circulating water
- valves
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Abstract
The utility model discloses a kind of blast furnace clean circulating water systems, including respectively with the high pressure pump group and medium lift pump group of sending absorbing well, absorption well to be connected to only, high pressure pump group is connected to blast furnace high-tension apparatus, medium lift pump group is connected to blast furnace medium-voltage equipment, and medium lift pump group is connected to high pressure pump group and is provided with valve and check-valves on its connecting pipeline；Valve is between check-valves and medium lift pump group.Valve maintains a normally open state in the utility model; due to check-valves only allow in pressure mend high pressure; when high pressure pump group is operated normally because high pressure clean circulating water pressure is big; check-valves is in normally off, once high pressure pump group hinders shutdown for some reason, check-valves is no longer acted on by the high pressure of high pressure clean circulating water; middle pressure clean circulating water then adds in high pressure clean circulating water pipeline automatically by check-valves; it can avoid high pressure clean circulating water pipeline to cut off the water supply, pipe valve operated without staff, advantageously ensure that blast furnace safety produces；And the utility model improvement cost is low, practical.
Description
Technical field
The utility model relates to blast-furnace equipment technical field, especially a kind of blast furnace clean circulating water system.
Background technique
Blast furnace is divided into middle pressure (0.5~0.9MPa) and two kinds of pressure water supplies of high pressure (1.2~1.6MPa) with clean circulating water.Its
In, middle pressure clean circulating water is mainly used for cooling down the blast furnaces such as blast furnace furnace wall middle and lower part, and water consumption is larger, and middle pressure clean circulating water by
In there is independent watering, water safety is secure；And high pressure clean circulating water is mainly used for more than blast furnace sealing and air port a small amount of portion
Position is cooled down, and water consumption is smaller, and without independent watering, water safety is the bottom of compared with.And high pressure pump group is for blast furnace high-tension apparatus
When water supply, when accidental shutdown occurs for high pressure pump group, if staff fails the company for opening medium lift pump group and high pressure pump group in time
Road is taken over, before the unlatching of high-pressure pump standby host, high pressure clean circulating water stops, to influence blast fumance.
Utility model content
The technical problem to be solved by the utility model is to provide one kind can solve high pressure pump group break down shut down when height
The blast furnace clean circulating water system of furnace high pressure clean circulating water cutout problem.
To solve above-mentioned technical problem the technical scheme adopted by the utility model is blast furnace clean circulating water system, including point
Not with the high pressure pump group and medium lift pump group of sending absorbing well, absorption well to be connected to only, high pressure pump group is connected to blast furnace high-tension apparatus, medium lift pump group with
The connection of blast furnace medium-voltage equipment, medium lift pump group are connected to high pressure pump group and are provided with valve and check-valves on its connecting pipeline；Institute
Valve is stated between check-valves and medium lift pump group.
Further, the blast furnace high-tension apparatus and blast furnace medium-voltage equipment are all connected to cooling tower, the cooling tower with
Send absorbing well, absorption well to be connected to only.
Further, the connecting pipeline of the blast furnace high-tension apparatus and blast furnace medium-voltage equipment and cooling tower is equipped with net spray
Absorbing well, absorption well and net spray pump group.
Further, medium pressure pump group is connected to safe water pool.
The beneficial effects of the utility model are: the utility model is arranged on connecting pipeline of the medium lift pump group with high pressure pump group
Valve and check-valves, valve maintain a normally open state, due to check-valves only allow in pressure mend high pressure, high pressure pump group operate normally when
Because high pressure clean circulating water pressure is big, check-valves is in normally off, once high pressure pump group hinders shutdown for some reason, check-valves is no longer by high pressure
The high pressure of clean circulating water acts on, and middle pressure clean circulating water then adds in high pressure clean circulating water pipeline automatically by check-valves, can avoid high pressure
Clean circulating water pipeline is cut off the water supply, and is operated without staff to pipe valve, advantageously ensures that blast furnace safety produces；And this reality
It is low, practical with novel improvement cost.
Detailed description of the invention
Fig. 1 is the schematic diagram of the utility model；
In the figure, it is marked as 1- send absorbing well, absorption well, 21- high pressure pump group, 22- blast furnace high-tension apparatus, 31- medium lift pump group, 32- high only
Furnace medium-voltage equipment, 41- valve, 42- check-valves, 5- cooling tower, 6- spray the net spray pump group of absorbing well, absorption well, 7-, 8- safe water pool only.
Specific embodiment
The utility model is further detailed with reference to the accompanying drawing for the ease of understanding the utility model,.
As shown in Figure 1, sending absorbing well, absorption well 1 to set as blast furnace high pressure only in blast furnace clean circulating water system described in the utility model
For 22 and the common watering of blast furnace medium-voltage equipment 32, blast furnace high-tension apparatus 22 and blast furnace medium-voltage equipment 32 are all each by pipeline
With send absorbing well, absorption well 1 to be connected to only, blast furnace high-tension apparatus 22 with only send absorbing well, absorption well 1 connecting line on be equipped with high pressure pump group 21, and
Blast furnace medium-voltage equipment 32 with only send absorbing well, absorption well 1 connecting line on be then equipped with medium lift pump group 31, by high pressure pump group 21, medium lift pump
Group 31 will send the clean circulating water in absorbing well, absorption well 1 to be transported to blast furnace high-tension apparatus 22, in blast furnace medium-voltage equipment 32 only respectively.
Blast furnace high-tension apparatus 22 is identical with clean circulating water used in blast furnace medium-voltage equipment 32, only passes through corresponding pump
Make hydraulic pressure different after group effect.Blast furnace high-tension apparatus 22 caused by order to solve because of 21 disorderly closedown of high pressure pump group, which is cut off the water supply, asks
Medium lift pump group 31 and high pressure pump group 21 by pipeline connection, are provided with valve 41 by topic, the utility model on its connecting pipeline
With check-valves 42, valve 41 is using conventional gate valve or butterfly valve, and valve 41 is set as normally open, and check-valves 42 has unidirectionally
By the characteristics of, check-valves 42 is set as to be circulated from medium lift pump group 31 to high pressure pump group 21, when check-valves 42 open when,
The clean circulating water hydraulic pressure at 42 both ends of check-valves is different, is higher than the corresponding pipeline of medium lift pump group 31 by the hydraulic pressure of the corresponding pipeline of high pressure pump group 21
Hydraulic pressure, check-valves 42 is in normally off, and middle pressure clean circulating water cannot normally can only be delivered in blast furnace and be pressed by check-valves 42
In equipment 32；And once high pressure pump group 21 breaks down shutdown, check-valves 42 no longer by the high pressure effect of high pressure clean circulating water and from
Dynamic to open, middle pressure clean circulating water is filled into blast furnace high-tension apparatus 22 by check-valves 42, and blast furnace high-tension apparatus 22 is avoided to cut off the water supply.And
And medium lift pump group 31 is connected to safe water pool 8,32 water consumption of blast furnace medium-voltage equipment is big, it is also necessary to event occur in high pressure pump group 21
It is 22 moisturizing of blast furnace high-tension apparatus when barrier is shut down, therefore independent watering of the safe water pool 8 as medium lift pump group 31 is set.
In addition, in order to realize clean circulating water recycling in blast furnace, as shown in Figure 1, being also provided in the utility model
Cooling tower 5, blast furnace high-tension apparatus 22 and blast furnace medium-voltage equipment 32 are all connected to by pipeline with cooling tower 5, and cooling tower 5 send suction with net
Well 1 is connected to, then clean circulating water can transport after carrying out cooling down to blast furnace high-tension apparatus 22 and blast furnace medium-voltage equipment 32 to cooling
Tower 5 cools down again, then is transmitted back to send in absorbing well, absorption well 1 only and recycle.Blast furnace high-tension apparatus 22 and blast furnace medium-voltage equipment 32 with
The connecting pipeline of cooling tower 5 is equipped with net spray absorbing well, absorption well 6 and net spray pump group 7, for conveying clean circulating water towards cooling tower 5.
Claims (4)
1. blast furnace clean circulating water system, including respectively with send absorbing well, absorption well high pressure pump group (21) and medium lift pump group (31) that (1) is connected to only,
High pressure pump group (21) is connected to blast furnace high-tension apparatus (22), and medium lift pump group (31) is connected to blast furnace medium-voltage equipment (32), feature
Be: medium lift pump group (31) is connected to high pressure pump group (21) and is provided with valve (41) and check-valves on its connecting pipeline
(42)；The valve (41) is located between check-valves (42) and medium lift pump group (31).
2. blast furnace clean circulating water system as described in claim 1, it is characterised in that: in the blast furnace high-tension apparatus (22) and blast furnace
Pressure equipment (32) be all connected to cooling tower (5), the cooling tower (5) with send absorbing well, absorption well (1) to be connected to only.
3. blast furnace clean circulating water system as claimed in claim 2, it is characterised in that: in the blast furnace high-tension apparatus (22) and blast furnace
The connecting pipeline of equipment (32) and cooling tower (5) is pressed to be equipped with net spray absorbing well, absorption well (6) and net spray pump group (7).
4. blast furnace clean circulating water system as described in claim 1, it is characterised in that: medium pressure pump group (31) and safe water pool
(8) it is connected to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920258389.8U CN209652353U (en) | 2019-02-28 | 2019-02-28 | Blast furnace clean circulating water system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920258389.8U CN209652353U (en) | 2019-02-28 | 2019-02-28 | Blast furnace clean circulating water system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209652353U true CN209652353U (en) | 2019-11-19 |
Family
ID=68525531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920258389.8U Active CN209652353U (en) | 2019-02-28 | 2019-02-28 | Blast furnace clean circulating water system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209652353U (en) |
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2019
- 2019-02-28 CN CN201920258389.8U patent/CN209652353U/en active Active
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