CN206709526U - A kind of coke drying system for smelting vanadium-titanium magnetite by blast furnace - Google Patents
A kind of coke drying system for smelting vanadium-titanium magnetite by blast furnace Download PDFInfo
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- CN206709526U CN206709526U CN201720516578.1U CN201720516578U CN206709526U CN 206709526 U CN206709526 U CN 206709526U CN 201720516578 U CN201720516578 U CN 201720516578U CN 206709526 U CN206709526 U CN 206709526U
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Abstract
The utility model discloses a kind of coke drying system for smelting vanadium-titanium magnetite by blast furnace, including:Hot waste gas source, inertia source of the gas, air-introduced machine, coke bin and gas extraction system;The hot waste gas source is connected by the first gas manifold with air supply header, and the inertia source of the gas is connected by the second gas manifold with the air supply header;The air supply header is connected with the air-introduced machine air inlet;The air-introduced machine gas outlet connects inlet manifold;The coke bin air inlet is connected through air intake branch with inlet manifold, and the coke bin gas outlet is connected with gas extraction system;Bypass line is provided between second gas manifold and the air supply header, multiple coke bins are arranged in parallel;The coke drying system improves the efficiency and security of drying course.
Description
Technical field
It the utility model is related to technical field of blast furnace process, and in particular to a kind of Jiao for smelting vanadium-titanium magnetite by blast furnace
Charcoal drying system.
Background technology
Coke is raw material essential in smelting vanadium-titanium magnetite by blast furnace technique, and its quality is to blast fumance direct motion
Stable, technical-economic index and blast furnace crucibe life-span are most important.Because coke water content is in processes such as production, storage, transports
Middle change is very big, causes feeding density charcoal water content higher, and coke moisture fluctuation can cause weighing inaccurate, steady so as to influence the working of a furnace
It is fixed.Research shows that coke water content often increases by 1%, will increase blast-furnace coke dosage 1.1%~1.3%;Coke water content exceedes
When 4%, then stove dust quantity substantially rises, and smooth operation of furnace is deteriorated.Thus, reducing smelter coke water content has significantly economy, ring
Guarantor and energy-saving benefit.
At present, widely used hot-blast stove is discarded is used as direct medium heating, drying coke, and drying course easily triggers in coke
The spontaneous combustion of own impurity such as bamboo and wood piece, paper, plastics etc., causes security incident.
Utility model content
In view of this, this application provides a kind of coke drying system for smelting vanadium-titanium magnetite by blast furnace, Jiao
Charcoal drying system improves the efficiency and security of drying course.
To solve above technical problem, technical scheme provided by the utility model is
A kind of coke drying system for smelting vanadium-titanium magnetite by blast furnace, including:Hot waste gas source, inertia source of the gas, air inducing
Machine, coke bin and gas extraction system;The hot waste gas source is connected by the first gas manifold with air supply header, and the inertia source of the gas leads to
The second gas manifold is crossed to be connected with the air supply header;The air supply header is connected with the air-introduced machine air inlet;The air inducing
Machine gas outlet connects inlet manifold;The coke bin air inlet is connected through air intake branch with inlet manifold, the coke bin outlet
Mouth is connected with gas extraction system;Bypass line, multiple coke are provided between second gas manifold and the air supply header
Storehouse is arranged in parallel.
Preferably, the coke bin quantity is 4.
Preferably, the hot waste gas source is blast funnace hot blast stove chimney.
Preferably, temperature transmitter and pressure transmitter are equipped with the air supply header and the inlet manifold.
Preferably, the air intake branch is provided with flow transmitter.
Preferably, the air supply header is provided with blowdown piping.
Preferably, the blowdown piping is provided with diffusion valve.
Preferably, the bypass line is provided with bypass control valve (BCV).
Preferably, the air intake branch is provided with air intake control valve.
Preferably, the air supply header is provided with supply control valve.
Preferably, the supply control valve includes:First supply control valve and the second supply control valve;First supply
Control valve is located between the first gas manifold gas outlet and the bypass line gas outlet, and the second supply control valve is set
Between the bypass line gas outlet and the air-introduced machine air inlet.
Preferably, the first gas manifold gas outlet is first gas manifold and the air supply header connectivity part.
Preferably, the bypass line gas outlet is the bypass line and the air supply header connectivity part.
Preferably, the gas extraction system includes:Exhaust branch pipe, axial flow blower and exhaust main;The axial flow blower is located at
On the exhaust branch pipe, the coke bin gas outlet is connected through the exhaust branch pipe with the exhaust main.
Preferably, each coke bin is provided with two gas outlets.
Preferably, the gas extraction system also includes deduster, and the deduster is connected with exhaust main.
Compared with prior art, its detailed description is as follows by the application:
The application increases inertia source of the gas in coke drying system, and inert gas and blast furnace hot waste gas are mixed as heating
The medium of coke is dried, avoids inflammable burn impurities in coke, improves drying efficiency and security.
The application is provided with bypass line between the second gas manifold and air supply header, if coke bin hair occurs for drying course
Raw failure, can close the first supply control valve, keep the opening of the second supply control valve, and inert gas enters through bypass line to be supplied
After gas supervisor, enter coke bin through air-introduced machine, inlet manifold, air intake branch, improve drying security.
The application is equipped with temperature transmitter and pressure transmitter on supply supervisor and inlet manifold, is set on air intake branch
There is flow transmitter, it is easy to accomplish to accurate, the stable regulation of operating mode, improve drying efficiency and security;When on supply supervisor
It is excessive that pressure transmitter monitors pressure, can be deflated by blowdown piping, further ensures the security of drying course.
The application is arranged in parallel multiple coke bins, the coke in multiple coke bins can be dried simultaneously, improve drying
Efficiency;Meanwhile each coke bin sets two coke bin gas outlets, each gas outlet is all connected with exhaust branch pipe, on exhaust branch pipe
Axial flow blower is set, ensures gas circulation in coke bin, also improves drying efficiency;In addition, air inlet is set on air intake branch
Control valve and flow transmitter, drying situation that can be to single coke bin are controlled, and when part of coke storehouse failure, remaining is burnt
Charcoal storehouse can normally dry, and when only being needed part of coke storehouse to work, can close not remaining coke bin, further increase drying effect
Rate.
The application gas extraction system also includes deduster, environmentally friendly.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the coke drying system schematic diagram provided by the utility model for smelting vanadium-titanium magnetite by blast furnace.
Embodiment
In order that those skilled in the art more fully understands the technical solution of the utility model, with reference to specific implementation
The utility model is described in further detail for example.
As described in Figure 1, the utility model provides a kind of coke drying system for smelting vanadium-titanium magnetite by blast furnace, bag
Include:Hot waste gas source 1, inertia source of the gas 2, air-introduced machine 3, coke bin 4 and gas extraction system 5;The hot waste gas source 1 passes through the first supply branch
Pipe 6 is connected with air supply header 7, and the inertia source of the gas 2 is connected by the second gas manifold 8 with the air supply header 7;The supply
House steward 7 is connected with the air inlet of air-introduced machine 3;The gas outlet of air-introduced machine 3 connects inlet manifold 9;The air inlet of coke bin 4
It is connected through air intake branch 10 with inlet manifold 9, the gas outlet of coke bin 4 is connected with gas extraction system 5;Second gas manifold
Bypass line 11 is provided between 8 and the air supply header 7, multiple coke bins 4 are arranged in parallel.
In the specific embodiment of the utility model one, the quantity of coke bin 4 is 4, and the hot waste gas source 1 is blast furnace heat
Wind furnace chimney.Temperature transmitter 12 and pressure transmitter 13 are equipped with the air supply header 7 and the inlet manifold 9;It is described
Air intake branch 10 is provided with flow transmitter 14.The air supply header 7 is provided with blowdown piping 15.Set on the blowdown piping 15
There is diffusion valve 16, the bypass line 11 is provided with bypass control valve (BCV) 17, and the air intake branch 9 is provided with air intake control valve 18,
The air supply header 7 is provided with supply control valve, and the supply control valve includes:The first supply supply control of control valve 19 and second
Valve 20 processed;The first supply control valve 19 is located at the gas outlet of the first gas manifold 6 and the gas outlet of bypass line 11
Between, the second supply control valve 20 is located between the gas outlet of bypass line 11 and the air inlet of the air-introduced machine 3, described
The gas outlet of first gas manifold 6 is first gas manifold 6 and the connectivity part of air supply header 7, and the bypass line 11 goes out
Gas port is the bypass line 11 and the connectivity part of air supply header 7.
In the specific embodiment of the utility model one, the gas extraction system 5 includes:Exhaust branch pipe 21, axial flow blower 22 with
Exhaust main 23;The axial flow blower 22 is on the exhaust branch pipe 21, and the gas outlet of coke bin 4 is through the exhaust branch pipe
21 are connected with the exhaust main 23, and each coke bin 4 is provided with two gas outlets, and the gas extraction system 5 also includes dedusting
Device 24, the deduster 24 are connected with exhaust main 23.
It the above is only preferred embodiment of the present utility model, it is noted that above-mentioned preferred embodiment should not regard
For that should be defined to limitation of the present utility model, the scope of protection of the utility model by claim limited range.For
For those skilled in the art, do not departing from spirit and scope of the present utility model, can also make some
Improvements and modifications, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (10)
- A kind of 1. coke drying system for smelting vanadium-titanium magnetite by blast furnace, it is characterised in that including:Hot waste gas source, inertia Source of the gas, air-introduced machine, coke bin and gas extraction system;The hot waste gas source is connected by the first gas manifold with air supply header, described Inertia source of the gas is connected by the second gas manifold with the air supply header;The air supply header connects with the air-introduced machine air inlet Connect;The air-introduced machine gas outlet connects inlet manifold;The coke bin air inlet is connected through air intake branch with inlet manifold, described Coke bin gas outlet is connected with gas extraction system;Bypass line is provided between second gas manifold and the air supply header, it is more The individual coke bin is arranged in parallel.
- 2. coke drying system according to claim 1, it is characterised in that on the air supply header and the inlet manifold It is equipped with temperature transmitter and pressure transmitter.
- 3. coke drying system according to claim 1, it is characterised in that the air intake branch is provided with flow pick-up Device.
- 4. coke drying system according to claim 1, it is characterised in that the air supply header is provided with blowdown piping.
- 5. coke drying system according to claim 1, it is characterised in that the bypass line inlet manifold is provided with side Logical control valve.
- 6. coke drying system according to claim 1, it is characterised in that the air intake branch controls provided with air inlet Valve.
- 7. coke drying system according to claim 1, it is characterised in that the air supply header is provided with supply and controlled Valve.
- 8. coke drying system according to claim 7, it is characterised in that the supply control valve includes:First supply Control valve and the second supply control valve;The first supply control valve is located at the first gas manifold gas outlet and the bypass Between pipeline gas outlet, the second supply control valve located at the bypass line gas outlet and the air-introduced machine air inlet it Between.
- 9. coke drying system according to claim 1, it is characterised in that the gas extraction system includes:Exhaust branch pipe, axle Flow fan and exhaust main;The axial flow blower is on the exhaust branch pipe, and the coke bin gas outlet is through the exhaust branch Pipe is connected with the exhaust main.
- 10. coke drying system according to claim 9, it is characterised in that the gas extraction system also includes deduster, institute Deduster is stated to be connected with exhaust main.
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CN201720516578.1U CN206709526U (en) | 2017-05-09 | 2017-05-09 | A kind of coke drying system for smelting vanadium-titanium magnetite by blast furnace |
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CN201720516578.1U CN206709526U (en) | 2017-05-09 | 2017-05-09 | A kind of coke drying system for smelting vanadium-titanium magnetite by blast furnace |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111457674A (en) * | 2020-05-19 | 2020-07-28 | 中冶赛迪工程技术股份有限公司 | Coke drying process and drying device |
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2017
- 2017-05-09 CN CN201720516578.1U patent/CN206709526U/en active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111457674A (en) * | 2020-05-19 | 2020-07-28 | 中冶赛迪工程技术股份有限公司 | Coke drying process and drying device |
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