CN209584288U - A kind of blast furnace raw gas heat riser - Google Patents
A kind of blast furnace raw gas heat riser Download PDFInfo
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- CN209584288U CN209584288U CN201822179095.4U CN201822179095U CN209584288U CN 209584288 U CN209584288 U CN 209584288U CN 201822179095 U CN201822179095 U CN 201822179095U CN 209584288 U CN209584288 U CN 209584288U
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Abstract
A kind of blast furnace raw gas heat riser, for solve the problems, such as can be blast furnace raw gas heating but also ensure bag filter safety in production and invent.It is characterized in that: being conveyed to blast furnace gas cloth bag dedusting device system after safe gas is heated up by heating device, safe gas after making heating mixes with low temperature raw coke oven gas and realizes that raw coke oven gas heats up, and passes through accumulation of heat, stewing furnace, net gas, heat supply and secondary purge step among these；Described safe gas is nitrogen or blast furnace purified gas.Its device sets a heat accumulating type heating system and connects with blast furnace dedusting system, and so-called heat accumulating type heating system is made of heat-accumulator tank and pipeline, and wherein pipeline includes: fuel gas conduit, air hose, safe gas inlet tube, high temperature safe gas outlet tube etc.；Heat accumulating type heating system is 2-4.Its outstanding feature is in warmed air without containing oxygen, therefore safe and reliable.It can be widely used for dust settling pocket technique field.
Description
Technical field:
The utility model belongs to the heating dress of blast furnace gas cloth bag dedusting technical field more particularly to a kind of blast furnace raw gas
It sets.
Background technique:
Dedusting of blast furnace gas is mostly used bag filter.Blast furnace gas cloth bag dedusting device requires blast furnace raw gas temperature,
If temperature is excessively high, cloth bag can be made to burn out, cause finally work；If temperature is too low, can make contained in coal gas
Moisture moisture condensation causes raw coke oven gas pipeline blocking, cloth bag service life to be shortened, a series of problems, such as ash discharge is difficult.With blast-furnace man
Skill technological progress, blast furnace fuel consumption reduce, and the latter's performance is very prominent, therefore, how to promote raw gas temperature just into urgency
Practical problem to be solved.Chinese patent CN101818220A was once disclosed a kind of " blast-furnace gas heating-up system ", and the system is logical
It crosses the high-temperature hot-air that equipment set is manufactured to be sent in blast furnace raw gas conveyance conduit, keeps its hot wind and raw coke oven gas mixed
It closes, to promote raw gas temperature to guarantee the operating temperature requirements of bag filter.In addition, what CN1597995A was once announced
" blast-furnace gas heating-up method and device ", party's subtraction unit are by setting up one in blast furnace raw gas main channel lining or outside
Heat riser is covered, the high-temp waste gas which generates is mixed into raw coke oven gas, famine is made by heat caused by it
Gas temperature increases, thus operating temperature needed for reaching blast furnace gas cloth bag dedusting device.However, although this two technologies can mention
Raw gas temperature is risen, but there is also obvious shortcomings: i.e. due to all containing oxygen in high-temperature hot-air and high-temp waste gas, therefore having explosion
Security risk therefore although its technology is feasible, but never obtain industrial application.That is, how to cut
The real technical problem for effectively promoting blast furnace raw gas temperature is still without obtaining practical solution.
Utility model content:
The purpose of this utility model is: in view of the above-mentioned problems, providing a kind of blast furnace raw gas heat riser.The device is not only
Blast furnace raw gas can effectively be heated up to and be made up to the temperature requirement of bag filter, and safe and reliable, the danger of no explosion
Danger, and have structure it is simple, it is easy to operate many advantages, such as.
Its technical solution is as follows: a kind of blast furnace raw gas heat riser, including the rough dedusting of blast furnace gas cloth bag dedusting device
System, it is characterised in that: it sets a heat accumulating type heating system A and connects with blast furnace gas rough dedusting system, so-called heat accumulating type heating
System A is made of heat-accumulator tank and the pipeline being attached thereto；Wherein heat-accumulator tank is by steel shell, refractory material wall and refractory material energy storage bed
It constitutes；The pipeline being wherein connected with heat-accumulator tank includes: fuel gas conduit, air hose, desorption tube, safe gas inlet tube, fume pipe, height
Warm safe gas outlet；Wherein, fuel gas conduit is equipped with gas valve and gas consumption adjusting valve；Air hose be equipped with air valve and
Air flow rate adjustment valve；Desorption tube is equipped with diffusion valve；Safe gas inlet tube connects the first safe gas delivery pipe and second
Safe gas delivery pipe, the first safe gas delivery pipe are equipped with flow control valve and shut-off valve, the second safe gas delivery pipe
It is equipped with second flow regulating valve and the second shut-off valve；Fume pipe is equipped with smoke valve connection flue and chimney；High temperature safe gas
Body outlet is equipped with high temperature safe gas stop valve and connects high temperature safe air shooter, high temperature safe air shooter and height
The gravitational precipitator of producer gas rough dedusting system is connected.
Here, in order to it is long when meet blast furnace gas cloth bag dedusting device technique requirement, on the basis of preceding solution,
It adds a heat accumulating type heating system B again to connect with heat accumulating type heating system A parallel connection or individually with blast furnace gas rough dedusting system, institute
The heat accumulating type heating system B said is identical as heat accumulating type heating system A structure, connection relationship is identical.The two rotation works alternatively.
In practice, since different operating condition requires, described heat accumulating type heating system settable 2,3 or 4.
Compared with prior art, the utility model has the advantages that
1, since the utility model is using safe gas, that is, nitrogen or blast furnace purified gas or nitrogen and blast furnace purified gas
Mixed gas, so no matter nitrogen or blast furnace purified gas are mixed into any proportion, all even if they are mixed after heating up with raw coke oven gas
It will not explode, therefore the utility model method safety high reliablity.
2, since the utility model has net gas process, it can produced flue gas when by the process by heated by gas
Displacement is clean, to guarantee that high temperature safe gas is pure, then, then delivers this to the rough dedusting of blast furnace gas cloth bag dedusting device
System thus makes the safe gas entered in raw coke oven gas not oxygenous, therefore provides guarantee for safety in production.
3, due to heat accumulating type heating system provided by the utility model, the heating performance with stability and high efficiency, therefore can be with
Effective and wide in range heating range is provided for blast furnace raw gas, is allowed to be able to satisfy the technique requirement of various bag filter coal gas,
So the utility model solve conscientiously blast furnace gas cloth bag dedusting device because blast furnace raw gas temperature it is low brought by a series of skills
Art problem.
4, utility model device is passed through high temperature safe gas in blast furnace gas rough dedusting system, is to pass through high temperature safe
The physical thermal of gas promotes raw gas temperature, therefore temperature-rise period is safe, direct, efficient, convenient, economical, environmentally friendly.
5, utility model device also has structure simple, implements to be easy, easy to operate, and it is many excellent to be conducive to maintenance management etc.
Point.Thus economic benefit and social benefit are obvious, therefore are conducive to large-area applications and promote.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of utility model device.
Specific embodiment:
It elaborates with reference to the accompanying drawing to the utility model.
As shown in Figure 1, blast furnace raw gas heat riser provided by the utility model, including blast furnace gas rough dedusting system,
The system includes blast furnace gas sealing cover 1, raw coke oven gas delivery line 2, raw coke oven gas tedge 3, raw coke oven gas down-comer 4, gravitational precipitator 5
And the gas pipe 28 of connection bag filter.The present apparatus is characterized in that: setting a heat accumulating type heating system A and blast furnace coal is rough
Dust pelletizing system connects, and so-called heat accumulating type heating system A is made of heat-accumulator tank and the pipeline being attached thereto；Wherein heat-accumulator tank is by steel
Shell 14, refractory material wall 13 and refractory material energy storage bed 12 are constituted；The pipeline being wherein connected with heat-accumulator tank includes: fuel gas conduit 6, sky
Tracheae 9, desorption tube 23, safe gas inlet tube 22, fume pipe 15, high temperature safe gas outlet tube 25；Wherein, in fuel gas conduit 6
Equipped with gas valve 8 and gas consumption adjusting valve 7；Air hose 9 is equipped with air valve 11 and air flow rate adjustment valve 10；Desorption tube 23
It is equipped with diffusion valve 24；Safe gas inlet tube 22 connects the first safe gas delivery pipe 19 and the second safe gas delivery pipe
29, the first safe gas delivery pipe 19 is equipped with flow control valve 21 and shut-off valve 20, sets in the second safe gas delivery pipe 29
There are second flow regulating valve 31 and the second shut-off valve 30；Fume pipe 15 is equipped with smoke valve 16 and connects flue 17 and chimney 18；It is high
Warm safe gas outlet 25 is equipped with high temperature safe gas stop valve 26 and connects high temperature safe air shooter 27, high temperature safe
Air shooter 27 is connected with the gravitational precipitator 5 of blast furnace gas rough dedusting system.It also shows in Fig. 1, is heated in heat accumulating type
System A side has a heat accumulating type heating system B to be in parallel therewith, and the heat accumulating type heating system B and heat accumulating type heating system A are tied
Structure is identical, connection relationship is identical, and function is also identical as operating method, and the two can be with rotation alternating cycle work, to guarantee not
It is interrupted to the gravitational precipitator 5 of blast furnace gas rough dedusting system and high temperature safe gas is provided, to promotes low temperature raw gas temperature.
As specific application:
Embodiment 1, the present apparatus are mainly characterized by: the safe gas that will be above blast furnace roof raw coke oven gas pressure passes through storage
The rough dedusting system of blast furnace gas cloth bag dedusting device, the safety after making heating are conveyed to after the heating of hot type heating system heat riser
Gas mixes with low temperature raw coke oven gas and realizes that raw coke oven gas heats up, and passes through accumulation of heat, stewing furnace, net gas, heat supply and secondary purifying gas among these
Five processing steps；Safe gas mentioned here is the gaseous mixture of nitrogen or blast furnace purified gas or nitrogen and blast furnace purified gas
Body.Illustrate the utility model process flow step by step below:
One, accumulation of heat: passing to combustion gas in the heat-accumulator tank of heat accumulating type heating system and air burn, generation of burning
High-temp waste gas flows through energy storage bed, puts aside its heat constantly in energy storage bed and stores, exhaust gas then passes through flue and is discharged into greatly
In gas.
Two, it boils in a covered pot over a slow fire furnace: after heat-accumulator tank heat storage is to specified value, all valves of heat accumulating type heating system being closed.
Three, net gas: the release valve of shut-off valve and heat-accumulator tank in the first safe gas delivery pipe of heat-accumulator tank is opened,
It is gone in displacement heat-accumulator tank to retain gas with the first safe gas, that is, nitrogen, after retaining gas and being replaced by safe gas,
Close the diffusion valve of heat-accumulator tank.
Four, heat supply: high temperature safe gas stop valve is opened, then by the second cut-off in the second safe gas delivery pipe
Valve is opened, and the mixed gas of the first safe gas and the second safe gas will be brought rapidly up continually by energy storage bed
Ground flows to blast furnace gas rough dedusting system, mixes therewith with low temperature raw coke oven gas, to promote the temperature of low temperature raw coke oven gas.Therefrom
Complete temperature-rise period.
Five, secondary purifying gas: after the heat storage capacity of heat-accumulator tank is down to specified value, by the second safe gas delivery pipe
Two shut-off valves are closed, and are gone in displacement heat-accumulator tank to retain gas by the first safe gas, that is, nitrogen, when retaining gas by substitute
After body is replaced, high temperature safe gas stop valve is closed.Complete all processes.
Embodiment 2 on that basis of example 1, then adds second heat accumulating type heating system, second heat accumulating type heating system
Uniting, identical as first heat accumulating type heating system structure, connection relationship is identical.The two using parallel way with blast furnace coal is rough removes
Dirt system connects, and works alternatively to rotation.I.e. during the first heat accumulating type heating system heat supply, the second heat accumulating type heating system
It completes accumulation of heat and stewing furnaceman makees, when the shortage of heat that the first heat accumulating type heating system provides, by the second heat accumulating type heating system
Net gas operation is carried out, the heat supply in parallel with the first heat accumulating type heating system of the second heat accumulating type heating system is then enabled, when the second storage
After hot type heating system is normal, the first heat accumulating type heating system is transferred to the 5th step process；And when the second heat accumulating type heating system mentions
When the shortage of heat of confession, then the first heat accumulating type heating system heat supply is enabled, the second heat accumulating type heating system is transferred to the 5th step work again
Sequence.Such alternate cycles can ensure and uninterruptedly provide heat for low temperature raw coke oven gas, to guarantee that the technique of bag filter is wanted
It asks.
The utility model can be widely used for blast furnace gas cloth bag dedusting technical field.
Claims (3)
1. a kind of blast furnace raw gas heat riser, including the rough dedusting system of blast furnace gas cloth bag dedusting device, it is characterised in that: set
One heat accumulating type heating system A connects with blast furnace gas rough dedusting system, and so-called heat accumulating type heating system A is by heat-accumulator tank and therewith
Connected pipeline is constituted；Wherein heat-accumulator tank is made of steel shell (14), refractory material wall (13) and refractory material energy storage bed (12)；Its
In the pipeline that is connected with heat-accumulator tank include: fuel gas conduit (6), air hose (9), desorption tube (23), safe gas inlet tube (22), cigarette
Tracheae (15), high temperature safe gas outlet tube (25)；Wherein, fuel gas conduit (6) is equipped with gas valve (8) and gas consumption adjusting valve
(7)；Air hose (9) is equipped with air valve (11) and air flow rate adjustment valve (10)；Desorption tube (23) is equipped with diffusion valve (24)；
Safe gas inlet tube (22) connects the first safe gas delivery pipe (19) and the second safe gas delivery pipe (29), the first safety
Air shooter (19) is equipped with flow control valve (21) and shut-off valve (20), and the second safe gas delivery pipe (29) is equipped with the
Two flow control valves (31) and the second shut-off valve (30)；Fume pipe (15) is equipped with smoke valve (16) connection flue (17) and chimney
(18)；High temperature safe gas outlet tube (25) is equipped with high temperature safe gas stop valve (26) and connects high temperature safe air shooter
(27), high temperature safe air shooter (27) is connected with the gravitational precipitator (5) of blast furnace gas rough dedusting system.
2. blast furnace raw gas heat riser according to claim 1, it is characterised in that: set the second heat accumulating type heating system B
Be in parallel with heat accumulating type heating system A or individually connect with blast furnace gas rough dedusting system, described heat accumulating type heating system B with
Heat accumulating type heating system A structure is identical, connection relationship is identical.
3. blast furnace raw gas heat riser according to claim 1, it is characterised in that: described heat accumulating type heating system is
2,3 or 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822179095.4U CN209584288U (en) | 2018-12-15 | 2018-12-15 | A kind of blast furnace raw gas heat riser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822179095.4U CN209584288U (en) | 2018-12-15 | 2018-12-15 | A kind of blast furnace raw gas heat riser |
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| Publication Number | Publication Date |
|---|---|
| CN209584288U true CN209584288U (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822179095.4U Active CN209584288U (en) | 2018-12-15 | 2018-12-15 | A kind of blast furnace raw gas heat riser |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111321263A (en) * | 2018-12-15 | 2020-06-23 | 阜新达诚科技有限公司 | Blast furnace raw gas heating method and device |
| CN114807471A (en) * | 2022-05-07 | 2022-07-29 | 中冶赛迪工程技术股份有限公司 | Furnace top gas temperature regulating and controlling process and system |
-
2018
- 2018-12-15 CN CN201822179095.4U patent/CN209584288U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111321263A (en) * | 2018-12-15 | 2020-06-23 | 阜新达诚科技有限公司 | Blast furnace raw gas heating method and device |
| CN114807471A (en) * | 2022-05-07 | 2022-07-29 | 中冶赛迪工程技术股份有限公司 | Furnace top gas temperature regulating and controlling process and system |
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