CN205576185U - Maintain steady device of 3# blast furnace nitrogen pressure - Google Patents
Maintain steady device of 3# blast furnace nitrogen pressure Download PDFInfo
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- CN205576185U CN205576185U CN201620303563.2U CN201620303563U CN205576185U CN 205576185 U CN205576185 U CN 205576185U CN 201620303563 U CN201620303563 U CN 201620303563U CN 205576185 U CN205576185 U CN 205576185U
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Abstract
The utility model relates to a maintain steady device of 3# blast furnace nitrogen pressure belongs to the steel making field. The device's the nitrogen gas supply device that specifically sets up to the oxyen manutactory links to each other through first pipeline with the 3# blast furnace coal injection device, and the order sets up first stop valve and second stop valve on the first pipeline, exit end at first stop valve is equipped with the second pipeline that links to each other with 3# blast furnace body, the third pipeline parallelly connected with the second pipeline, and the order sets up first ball valve, governing valve and second ball valve on the second pipeline, be equipped with the third ball valve on the third pipeline. Through the utility model discloses the device can guarantee the normal air feed of nitrogen gas, and pressure is steady, effectively satisfies the required pressure range of blast furnace nitrogen gas, has ensured blast furnace job stabilization nature, simultaneously, do not need to adjust at any time pressure at the nitrogen gas supply in -process, can ensure for a long time normally, alleviate the operation burden.
Description
Technical field
This utility model belongs to steelmaking technical field, is specifically related to a kind of maintenance 3# stable device of blast furnace nitrogen pressure.
Background technology
For 3# blast furnace nitrogen steam line as it is shown in figure 1, nitrogen is confessed to stop valve 1-1 by oxyen manutactory in prior art,
Being supplied to 3# pulverized coal injection, 3# blast-furnace body by stop valve 1-2,1-3 the most respectively, 3# pulverized coal injection atmospheric pressure is
1.4Mpa, and 3# blast-furnace body gas is only 0.9Mpa, 3# blast-furnace body gas and takes direct-furnish mode in design, can only pass through
Stop valve 1-3 is adjusted, but nitrogen is in supply process, due to factors such as other system use and pipe networks, as from oxyen manutactory
For nitrogen to steel-making and sintering process etc., pressure fluctuates at any time, fluctuated, and supply gas pressure is constantly in uncontrollable state, directly
Connect and affect main line production.The most how overcoming the deficiencies in the prior art is the problem that current steelmaking technical field needs solution badly.
Utility model content
The purpose of this utility model is to solve the deficiencies in the prior art, it is provided that a kind of maintenance 3# blast furnace nitrogen pressure is put down
Steady device, this device can normally supply, and pressure is steady, effectively meets blast furnace nitrogen desirable pressure.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A kind of 3# stable device of blast furnace nitrogen pressure that maintains, the nitrogen feedway of oxyen manutactory and 3# coal powder injection apparatus of blast furnace
Being connected by the first pipeline, on the first pipeline, order arranges the first stop valve and the second stop valve；
The port of export at the first stop valve is provided with 3# blast-furnace body is connected second pipe in parallel with second pipe
Three pipelines, on second pipe, order arranges the first ball valve, regulation valve and the second ball valve；3rd pipeline is provided with the 3rd ball valve.
It is further preferred that the first described pipeline is DN200 pipeline.
It is further preferred that described second pipe is DN200 pipeline.
It is further preferred that the 3rd described pipeline is DN200 pipeline.
It is further preferred that described regulation valve is connected with regulation control module.Regulation control module is used for controlling to adjust
The switch degree of joint valve.
When 3# blast furnace normally production gas, standard-sized sheet regulates the first forward and backward ball valve of valve and the second ball valve, closes the 3rd pipe
Road is provided with the 3rd ball valve, adjusts nitrogen supply pressure with regulation valve by demand, when pipeline pressure is beyond the control energy of regulation valve
During power, the first ball valve and/or the second ball valve is used jointly to regulate, to maintain stablizing of pressure；When on second pipe
When one or several valve in one ball valve, regulation valve and the second ball valve needs to overhaul, then the 3rd pipeline is used to supply
Gas, utilizes the 3rd ball valve to control nitrogen supply pressure.
Compared with prior art, it has the beneficial effect that this utility model
(1) by this utility model device, it is ensured that the normal supply of nitrogen, and pressure is steady, effectively meets blast furnace nitrogen
Gas desirable pressure scope, has ensured the stability that blast furnace works.
(2) by this utility model device, when nitrogen supplies, it is not required to adjust at any time pressure, can ensure normal for a long time,
Alleviate operation burden.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only
It is embodiments more of the present utility model, for those of ordinary skill in the art, before not paying creative work
Put, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of existing nitrogen feeding pipe；
Fig. 2 is the structural representation that this utility model maintains the 3# stable device of blast furnace nitrogen pressure；
Wherein, the 1, first pipeline；2, second pipe；3, the 3rd pipeline；4,3# coal powder injection apparatus of blast furnace；5, nitrogen supply dress
Put；6, regulation control module；7,3# blast-furnace body；2-1, the first stop valve；2-2, the second stop valve；2-3, the 3rd ball valve；2-
4, the first ball valve；2-5, regulation valve；2-6, the second ball valve.
Wherein arrow method is gas flow.
Detailed description of the invention
Below in conjunction with embodiment, this utility model is described in further detail.
It will be understood to those of skill in the art that the following example is merely to illustrate this utility model, and should not be regarded as limiting
Scope of the present utility model.Unreceipted concrete technology or condition person in embodiment, according to the skill described by the document in this area
Art or condition or carry out according to product description.Material therefor, instrument or equipment unreceipted production firm person, is and can lead to
Cross and buy the conventional products obtained.
The 3# stable device of blast furnace nitrogen pressure, the nitrogen feedway 5 and 3# of oxyen manutactory is maintained as in figure 2 it is shown, a kind of
Coal powder injection apparatus of blast furnace 4 is connected by the first pipeline 1, and on the first pipeline 1, order arranges the first stop valve 2-1 and the second stop valve 2-
2；
The port of export at the first stop valve 2-1 is provided with the second pipe 2 being connected with 3# blast-furnace body 7 and second pipe 2 also
3rd pipeline 3 of connection, on second pipe 2, order arranges the first ball valve 2-4, regulation valve 2-5 and the second ball valve 2-6；3rd pipeline 3
It is provided with the 3rd ball valve 2-3.
The first described pipeline 1 is DN200 pipeline.
Described second pipe 2 is DN200 pipeline.
The 3rd described pipeline 3 is DN200 pipeline.
Described regulation valve 2-5 is connected with regulation control module 6.
When 3# blast-furnace body 7 normally production gas, standard-sized sheet regulates the first forward and backward for valve 2-5 ball valve 2-4 and the second ball valve
2-6, closes the 3rd pipeline 3 and is provided with the 3rd ball valve 2-3, adjusts nitrogen supply pressure with regulation valve 2-5 by demand, by regulation
Control module 6 controls to adjust valve 2-5, and the downstream pressure of regulation valve 2-5 is set as 0.9Mpa, to meet the nitrogen of 3# blast-furnace body
Gas uses.
When pipeline pressure is beyond the control ability of regulation valve 2-5, the first ball valve 2-4 and/or the second ball valve 2-6 is used to enter
The common regulation of row, to maintain stablizing of pressure；As the first ball valve 2-4 on second pipe, regulation valve 2-5 and the second ball valve 2-6
In one or several valve need when overhauling, then use the 3rd pipeline 3 to supply, utilize the 3rd ball valve 3 to control
Nitrogen supply pressure.
By this utility model device, it is ensured that the normal supply of nitrogen, and pressure is steady, effectively meets blast furnace nitrogen institute
Need pressure limit, be not required to adjust at any time pressure simultaneously, can ensure normal for a long time, alleviate operation burden.
Those skilled in the art of the present technique are it is understood that the correlation module that relates in this utility model and realization thereof
Function is to carry computer software conventional in prior art in the hardware after improvement and the device of composition, device or system
Program or relevant agreement achieve that, are not to improve computer software programs of the prior art or relevant agreement.
Such as, the computer hardware system after improvement still can realize this hardware system by loading existing operation system of software
Specific function.It is understood, therefore, that innovation of the present utility model is to change hardware module in prior art
Enter and connect syntagmatic, rather than be only in hardware module for realizing changing of the software that carries about function or agreement
Enter.
Those skilled in the art of the present technique are it is understood that the correlation module mentioned in this utility model is performed for this
One or more hardware device in step in operation, method, flow process, measure, scheme described in application.Described hardware sets
Standby can be required purpose and specialized designs and manufacture, or the known device in general purpose computer or known can also be used
Other hardware devices.Described general purpose computer activates or reconstructs with having storage procedure Selection within it.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative used herein " ", "
Individual ", " described " and " being somebody's turn to do " may also comprise plural form.It is to be further understood that description of the present utility model uses
Wording " include " referring to there is described feature, integer, step, operation, element and/or assembly, but it is not excluded that existence or
Add other features one or more, integer, step, operation, element, assembly and/or their group.It should be understood that when us
Claiming element to be " connected " or during " coupled " to another element, it can be directly connected or coupled to other elements, or can also
There is intermediary element.Additionally, " connection " used herein or " coupling " can include wireless connections or couple.Used herein arrange
Diction "and/or" includes one or more any cell listing item being associated and all combinations.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (include technology art
Language and scientific terminology) have with the those of ordinary skill in this utility model art be commonly understood by identical meaning.Also
It should be understood that those terms defined in such as general dictionary should be understood that have with in the context of prior art
The consistent meaning of meaning, and unless defined as here, will not explain by idealization or the most formal implication.
Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described.One's own profession
Skilled person will appreciate that of industry, this utility model is not restricted to the described embodiments, described in above-described embodiment and description
Principle of the present utility model is simply described, on the premise of without departing from this utility model spirit and scope, this utility model is also
Have various changes and modifications, in the range of these changes and improvements both fall within claimed this utility model.This utility model
Claimed scope is defined by appending claims and equivalent thereof.
Claims (5)
1. one kind maintains the 3# stable device of blast furnace nitrogen pressure, it is characterised in that the nitrogen feedway (5) of oxyen manutactory and 3#
Coal powder injection apparatus of blast furnace (4) is connected by the first pipeline (1), and the upper order of the first pipeline (1) arranges the first stop valve (2-1) and second
Stop valve (2-2)；
The port of export at the first stop valve (2-1) is provided with the second pipe (2) and second pipe being connected with 3# blast-furnace body (7)
(2) the 3rd pipeline (3) in parallel, the upper order of second pipe (2) arranges the first ball valve (2-4), regulation valve (2-5) and the second ball valve
(2-6)；3rd pipeline (3) is provided with the 3rd ball valve (2-3).
The maintenance 3# stable device of blast furnace nitrogen pressure the most according to claim 1, it is characterised in that the first described pipe
Road (1) is DN200 pipeline.
The maintenance 3# stable device of blast furnace nitrogen pressure the most according to claim 1, it is characterised in that the second described pipe
Road (2) is DN200 pipeline.
The maintenance 3# stable device of blast furnace nitrogen pressure the most according to claim 1, it is characterised in that the 3rd described pipe
Road (3) is DN200 pipeline.
The maintenance 3# stable device of blast furnace nitrogen pressure the most according to claim 1, it is characterised in that described regulation valve
(2-5) it is connected with regulation control module (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620303563.2U CN205576185U (en) | 2016-04-12 | 2016-04-12 | Maintain steady device of 3# blast furnace nitrogen pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620303563.2U CN205576185U (en) | 2016-04-12 | 2016-04-12 | Maintain steady device of 3# blast furnace nitrogen pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205576185U true CN205576185U (en) | 2016-09-14 |
Family
ID=56865813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620303563.2U Active CN205576185U (en) | 2016-04-12 | 2016-04-12 | Maintain steady device of 3# blast furnace nitrogen pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205576185U (en) |
-
2016
- 2016-04-12 CN CN201620303563.2U patent/CN205576185U/en active Active
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |