CN208532836U - A kind of medium and small blast furnace cast house mill construction system - Google Patents
A kind of medium and small blast furnace cast house mill construction system Download PDFInfo
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- CN208532836U CN208532836U CN201820956995.2U CN201820956995U CN208532836U CN 208532836 U CN208532836 U CN 208532836U CN 201820956995 U CN201820956995 U CN 201820956995U CN 208532836 U CN208532836 U CN 208532836U
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Abstract
The utility model relates to a kind of medium and small blast furnace cast house mill construction systems comprising mill construction, ventilating and purifying air system and medium and small blast furnace tapping field structure；Mill construction includes workshop top (2) and multiple enclosings (3), and mill construction is closed；Ventilating and purifying air system includes elongated type air inlet (4), medium and small blast furnace tapping field structure includes blast furnace (1), the side of mill construction is arranged in blast furnace (1), the elongated type air inlet (4) is equipped in the bottom for the other side enclosing that the tapping hole of blast furnace (1) is just facing, extraneous fresh air is sent into from the elongated type air inlet along mill construction bottom level, and dust-laden high-temperature flue gas caused by medium and small blast furnace tapping field structure is pushed to ventilating and purifying air system and trap simultaneously outlet.The system can effectively improve workshop interior air-flow tissue, optimize ventilation volume, improves smoke-dust arresting efficiency, prevents smoke-dust from escaping.
Description
Technical field
The utility model relates to a kind of medium and small blast furnace cast house mill construction systems, belong to ironmaking heavily contaminated workshop field,
More particularly to the mill construction and ventilating and purifying air system of a kind of medium and small blast furnace cast house.
Background technique
Heat size is in 2500m3Medium and small blast furnace below 60% or more accounting in China's iron-smelter is middle-size and small-size iron and steel enterprise
Main blast furnace design to be used.Its cast house mill construction is full open model or semi open model, and majority is provided only with ceiling or skylight,
It is vented using gravity-flow ventilation, job platform semi-outdoor.
A large amount of high-temperature flue gas and smoke-dust can be generated during blast furnace opening tapping, stifled iron notch and molten iron flow,
Fugitive dust point is mainly distributed on tapping hole, iron runner, minute iron runner, hot-metal bottle etc..Not only smoke discharge amount is big, post contains in cast house
Dust concentration is high, and (molten iron per ton generates 2.5kg smoke-dust, and operation area dust content is up to 2-3g/m3), and high-temperature flue gas makes tobacco powder
Dirt is in disperse state, easily escapes.In addition blast furnace casting often, the time it is long so that large area is by tobacco powder in cast house
Dirt, heat radiation and CO, SO2The pollution of equal pernicious gases, production operation inclement condition influence the health of worker serious.
Meanwhile a large amount of smoke-dusts diffuse in atmosphere from workshop surrounding and roof, and plant environment is caused to pollute.Therefore, working as front ring
Under the increasingly stringent situation of guaranteed request, for the dust removal by ventilation problem of medium and small blast furnace cast house, it is necessary to progress of adopting an effective measure
It administers, to improve operating environment, prevention and treatment smoke-dust is escaped.
The ventilating and purifying air system of most medium and small blast furnace cast houses only sets a suspended hood in each hot-metal bottle position, and valve is cut
It changes, is used alternatingly.And a biggish top draft hood is designed in the top of tapping hole and sow, trap the dust-laden high temperature of tapping hole
Flue gas.Due to other force ventilation measures, cause cast house platform without Leads to new breeze, heat exchange efficiency is low in workshop, part
The high temperature that heat radiation generates influences normal operation.Simultaneously as smoke-dust diffusion is serious, dedusting without effective air current composition
The dust removing effects that cover arresting efficiency is low, cast house is whole are poor.In addition workshop surrounding lacks enclosing, and most smoke-dusts are in high-temperature flue gas
It is escaped in environment outside workshop top and surrounding in the form of inorganization under effect, causes serious atmosphere pollution.
Therefore, it is necessary to which the smoke-dust of workshop form and tapping process for existing medium and small blast furnace cast house discharges spy
Point redesigns mill construction and deduster arrangement, optimizes workshop interior air-flow tissue and dust removal by ventilation form, to change
Kind production operation environment, improves smoke-dust arresting efficiency, prevents smoke-dust from escaping.
Utility model content
The utility model provides the mill construction and ventilating and purifying air system of a kind of medium and small blast furnace cast house, it is intended in solution
State problem.
The utility model relates to a kind of medium and small blast furnace cast house mill construction systems comprising mill construction, dust removal by ventilation
System and medium and small blast furnace tapping field structure；Mill construction includes workshop top and multiple enclosings, and mill construction is closed, workshop top
For non-sinkage type structure；Ventilating and purifying air system includes air inlet, preferably elongated type air inlet, medium and small blast furnace tapping field structure packet
Blast furnace is included, the side inside mill construction is arranged in blast furnace, sets in the bottom for the other side enclosing that the tapping hole of blast furnace is just facing
There is the air inlet, extraneous fresh air is sent into from the air inlet along mill construction bottom level, by medium and small blast furnace cast house knot
Dust-laden high-temperature flue gas caused by structure pushes to ventilating and purifying air system and trap simultaneously outlet.
Wherein, the section on workshop top is trapezium structure, and there are four enclosing tools, and respectively front side, rear side, left and right side are enclosed
The left side inside mill construction is arranged in gear, blast furnace, and on right side, the bottom of enclosing is equipped with the elongated type air inlet.
Wherein, medium and small blast furnace tapping field structure further includes the tapping hole of blast furnace, sow, divides iron runner and slag runner, and blast furnace is set
It sets in the left side of mill construction, close to left side enclosing, blast furnace iron notch is just facing right side wall gear, and blast furnace iron notch connects main iron
Ditch, sow include horizontal segment and vertical section, the horizontal segment of sow towards right side enclosing direction horizontal extension, horizontal segment
End connects vertical section, and vertical section extends towards the direction of front side enclosing, and the end of vertical section connects multiple points of iron runners, preferably
Three, iron runner is divided also to extend towards the direction of front side enclosing；Slag runner connects the horizontal segment of sow and towards the side of rear side enclosing
To extension, and it is vertical with the direction that the horizontal segment of sow extends.
Wherein, ventilating and purifying air system further includes top draft hood, secondary petticoat pipe, roof cover, side-draught hood and hot-metal bottle cover；It is described into
The enclosing bottom on right side is arranged in air port, and extends along the enclosing bottom on entire right side, and the air inlet and blast furnace
Tapping hole it is positioned opposite；Workshop top is equipped with roof cover, and the right side of the blast furnace is arranged in roof cover, for trapping sow
Fang Hanchen high-temperature flue gas prevents aggregation of the smoke-dust at the top of workshop and escapes.
Wherein, top draft hood is equipped on the sow near tapping hole, the top of top draft hood is equipped with secondary petticoat pipe, for catching
The secondary flue gas that collection top draft hood escapes；Top draft hood and secondary petticoat pipe play the role of promoting air-flow jointly, assist the machine of roof cover
Tool ventilation and air current composition, so that the dust-laden high-temperature flue gas edge for dividing iron runner, slag runner and sow to generate of the tapping field structure
After the blast furnace orderly rises convergence, is finally trapped by roof cover, reduce diffusion of the smoke-dust to cast house structure platform
With the heat radiation of high-temperature flue gas.
Wherein, dividing equipped with the side-draught hood towards the air inlet between iron runner and blast furnace, for trapping molten iron from main iron
The vertical section of ditch branches to the dust-laden high-temperature flue gas generated during point iron runner, and workshop bottom airflow level is guided to converge to height
Furnace tapping hole assists the force ventilation of top draft hood, secondary petticoat pipe and roof cover, promotes the orderly transverse flow of dust-laden high-temperature flue gas
It is dynamic.
Wherein, it is equipped with hot-metal bottle cover each point of iron runner outlet, preferably passes through valve transfer, control opening and closing, for trapping iron
Water pot injects the flue dust discharged when molten iron, prevents smoke-dust from escaping.
Wherein, roof cover, top draft hood, secondary petticoat pipe, side-draught hood and hot-metal bottle cover pass through flue and converge connection
Dust-laden high temperature cigarette to external deduster, for trapping roof cover, top draft hood, secondary petticoat pipe, side-draught hood and hot-metal bottle cover
Gas is discharged after external deduster dedusting.
Wherein, extraneous fresh air is sent into from air inlet along workshop bottom level, will be divided caused by iron runner, slag runner and sow
Dust-laden high-temperature flue gas horizontal direction blast furnace direction pushes to side-draught hood, and under side-draught hood guidance, the flue gas is summarized supreme stokehold,
Again by the trapping of top draft hood and secondary petticoat pipe, flue gas is promoted along blast furnace, the flue gas not trapped is finally converged into workshop
Front end is pushed up, then is trapped by roof cover, arresting efficiency is high, and force ventilation amount is small, energy-efficient.
Wherein, the high 1.5-3m of air inlet, preferably 2m, as fresh air inlet, wind speed 2-5m/s is entered the wind in tiny structure design.
Wherein, a kind of mill construction and ventilating and purifying air system of medium and small blast furnace cast house, mill construction are enclosed factory
Roof 2 and enclosing 3, enclosing bottom is equipped with elongated type air inlet 4 in front of 1 tapping hole of blast furnace.Air inlet 4 is 2m high, as fresh air
Entrance, tiny structure design, enters the wind wind speed 2-5m/s.Extraneous fresh air from air inlet 4 along workshop bottom level be sent into, will divide iron runner 7,
Dust-laden high-temperature flue gas caused by slag runner 5 and sow 6 pushes to side-draught hood 10 horizontally forward and top draft hood 8 traps, with prevention and treatment
Smoke-dust diffusion is escaped to be assembled with CO, meanwhile, reduce the operating environment temperature of cast house platform.1/3 before the nearly blast furnace in workshop top 2
Place is equipped with roof cover 11, i.e., before blast furnace, apart from blast furnace certain distance, roof cover 11 is equipped on workshop top 2, described certain
Distance is that 1/3 length of the from left to right length of workshop top 2 for trapping dust-laden high-temperature flue gas above iron runner prevents smoke-dust from existing
It aggregation at the top of workshop and escapes.Meanwhile the force ventilation of roof cover 11 is combined with the natural air inlet of air inlet 4, is used for factory
Room interior air-flow tissue.Flow level is upwardly into roof cover 11 along blast furnace after dividing iron runner 7, slag runner 5 and sow 6 in cast house
Position forms middle in and top out and close to cast house platform and the regular air flow direction of blast furnace iron notch, to control in workshop
Smoke-dust diffusion, improves ventilation heat exchange efficiency, reduces force ventilation air quantity.Top draft hood 8 is equipped on tapping hole sow 6,
Top is equipped with secondary petticoat pipe 9, the secondary flue gas escaped for trapping top draft hood 8.Top draft hood 8 is played jointly with secondary petticoat pipe 9 and is mentioned
The effect of air-flow is risen, the force ventilation and air current composition of roof cover 11 are assisted, so that dividing iron runner 7, slag runner 5 and main iron in cast house
Ditch 6 generate dust-laden high-temperature flue gas along blast furnace orderly rises converge after, finally trapped by roof cover 11, reduce smoke-dust to
The diffusion of cast house platform and the heat radiation of high-temperature flue gas.The side-draught hood towards air inlet 4 is equipped between iron runner 7 and blast furnace dividing
10, the dust-laden high-temperature flue gas generated during point iron runner 7 is branched to from sow 6 for trapping molten iron, and guide workshop bottom
Flow level converges to blast furnace iron notch, assists the force ventilation of top draft hood 8, secondary petticoat pipe 9 and roof cover 11, promotes dust-laden high
The orderly lateral flow of warm flue gas.Meanwhile it being equipped with hot-metal bottle top draft hood 12 each point of iron runner outlet, pass through valve transfer, control
Opening and closing, the flue dust discharged when for trapping hot-metal bottle injection molten iron, prevents smoke-dust from escaping.
The technical solution of the utility model is the medium and small blast furnace towards unilateral tapping and designs, and it is logical mainly to solve operating platform
Wind heat exchange, the problems such as flue gas tissue and trapping, workshop top and surrounding smoke-dust escape in workshop, with technical effect below or
Advantage:
(1) by air quantity optimization and air current composition, the exhaust outlet and ventilation opening on workshop top is eliminated, is really realized totally-enclosed
Design, prevention and treatment smoke-dust are escaped from exhaust outlet and ventilation opening；
(2) the original workshop roof construction of blast furnace is combined, directly roof cover 11 is installed additional in front, promotes force ventilation and dedusting,
It does not need to be changed to sinkage type structure；
(3) only enclosing sets air inlet 4 immediately ahead of tapping hole, remaining all round closure, and prevention and treatment smoke-dust is escaped from surrounding；
(4) inside cast house, increase side-draught hood 10 and secondary petticoat pipe 9, effectively facilitate flue gas directed flow；
(5) fresh air is horizontally entered into from air inlet 4, by cast house operating platform and trough, under the guidance of side-draught hood 10,
Flue gas is summarized into supreme stokehold, then by the trapping of top draft hood 8 and secondary petticoat pipe 9, flue gas is promoted along blast furnace, will finally not caught
The flue gas of collection converges to workshop top front end, then is trapped by roof cover 11, and arresting efficiency is high, and force ventilation amount is small, energy-efficient；
(6) position, size and the air force of air inlet 4, roof cover 11, side-draught hood 10 and secondary petticoat pipe 9, all passes through
The Optimal Parameters of numerical simulation calculation.
The advantages of further the utility model, is as follows:
1, the utility model is the mill construction and ventilating and purifying air system of a kind of medium and small blast furnace cast house.Mill construction setting
For enclosing bottom in front of the closed workshop of mechanical ventilation type with air inlet, including workshop top, surrounding enclosing and tapping hole
Elongated type air inlet.Using roof cover, tapping hole top draft hood, secondary petticoat pipe, side-draught hood and hot-metal bottle cover etc. as mechanical
Venting practice effectively improves heat exchange efficiency in workshop, reduces ventilation volume, avoids the localized hyperthermia of cast house platform, improves and makees
Industry environment.
2, it is calculated by fluid dynamic numerical simulation, in closed workshop, reasonable Arrangement roof cover, tapping hole top are inhaled
Cover, secondary petticoat pipe, side-draught hood and hot-metal bottle cover, and the elongated type air inlet of enclosing bottom is combined to design, rationalization's dust-laden
The air flow direction of high-temperature flue gas controls smoke-dust diffusion path, avoids the aggregation of the pollutants such as smoke-dust, CO.
3, incorporation engineering physical condition parameter, is calculated by fluid dynamic numerical simulation, optimizes roof cover, tapping hole top
Suction hood, secondary petticoat pipe, side-draught hood and hot-metal bottle cover dedusting air quantity, improve dust-laden high-temperature flue gas convergence and organized stream
It is dynamic, the arresting efficiency of each dust excluding hood is improved, prevents smoke-dust from escaping and uncontrollable discharge.
Detailed description of the invention
Fig. 1 shows the mill construction and ventilating and purifying air system of a kind of medium and small blast furnace cast house.
Specific embodiment
To meet the inside post environment of medium and small blast furnace cast house workshop and pair of external smoke-dust uncontrollable discharge concentration
It is important to ask, closed mill construction must be taken, dust removal by ventilation measure, and the air-flow stream of rationalization's dust-laden high-temperature flue gas are optimized
To, could improve ventilation heat exchange effect in workshop, improve flue gas trapping rate, prevent smoke-dust from escaping.
As shown in Figure 1, a kind of medium and small blast furnace cast house mill construction system comprising mill construction, ventilating and purifying air system
With medium and small blast furnace tapping field structure；Mill construction includes workshop top 2 and multiple enclosings 3, and mill construction is closed, workshop top 2
For non-sinkage type structure；Ventilating and purifying air system includes air inlet 4, preferably elongated type air inlet 4, medium and small blast furnace tapping field structure
Including blast furnace 1, the side inside mill construction is arranged in blast furnace 1, at the bottom for the other side enclosing that the tapping hole of blast furnace 1 is just facing
Portion is equipped with the air inlet 4, and extraneous fresh air is sent into along mill construction bottom level from the air inlet 4, medium and small blast furnace is gone out
Dust-laden high-temperature flue gas caused by iron field structure pushes to ventilating and purifying air system and trap simultaneously outlet.The section on workshop top 2 is
Trapezium structure, there are four the tools of enclosing 3, respectively front side, rear side, left and right side enclosing, and blast furnace 1 is arranged inside mill construction
Left side, on right side the bottom of enclosing be equipped with the elongated type air inlet 4.Medium and small blast furnace tapping field structure further includes blast furnace
Tapping hole, sow 6 divide iron runner 7 and slag runner 5, and the left side of mill construction is arranged in blast furnace 1, close to left side enclosing, blast furnace casting
Mouth is just kept off in face of right side wall, and blast furnace iron notch connects sow 6, and sow 6 includes horizontal segment and vertical section, the water of sow 6
For flat section towards the direction horizontal extension of right side enclosing, the end of horizontal segment connects vertical section, and vertical section is towards the side of front side enclosing
To extension, the end of vertical section connects multiple points of iron runners 7, preferably three, and iron runner 7 is divided also to prolong towards the direction of front side enclosing
It stretches；Slag runner 5 connects the horizontal segment of sow 6 and extends towards the direction of rear side enclosing, and extend with the horizontal segment of sow 6
Direction is vertical.Ventilating and purifying air system further includes top draft hood 8, secondary petticoat pipe 9, roof cover 11, side-draught hood 10 and hot-metal bottle cover 12；Institute
The enclosing bottom that right side is arranged in air inlet 4 is stated, and is extended along the enclosing bottom on entire right side, and the air inlet 4
It is positioned opposite with the tapping hole of blast furnace；Workshop top 2 is equipped with roof cover 11, and roof cover 11 is arranged in the right side of the blast furnace, is used for
6 top dust-laden high-temperature flue gas of sow is trapped, aggregation of the smoke-dust at the top of workshop is prevented and is escaped.
Top draft hood 8 is equipped on sow 6 near tapping hole, the top of top draft hood 8 is equipped with secondary petticoat pipe 9, for catching
The secondary flue gas that collection top draft hood 8 escapes；Top draft hood 8 and secondary petticoat pipe 9 play the role of promoting air-flow jointly, assist roof cover 11
Force ventilation and air current composition so that the dust-laden high temperature for dividing iron runner 7, slag runner 5 and sow 6 to generate of the tapping field structure
It after flue gas orderly rises convergence along the blast furnace, is finally trapped by roof cover 11, it is flat to tapping field structure to reduce smoke-dust
The diffusion of platform and the heat radiation of high-temperature flue gas.The side-draught hood 10 towards the air inlet 4 is equipped between iron runner 7 and blast furnace 1 dividing,
The dust-laden high-temperature flue gas generated during point iron runner 7 is branched to from the vertical section of sow 6 for trapping molten iron, and guides workshop
Bottom airflow level converges to blast furnace iron notch, assists the force ventilation of top draft hood 8, secondary petticoat pipe 9 and roof cover 11, promotes to contain
The orderly lateral flow of dirt high-temperature flue gas.It is equipped with hot-metal bottle cover 12 each point of outlet of iron runner 7, preferably passes through valve transfer, control
Opening and closing, the flue dust discharged when for trapping hot-metal bottle injection molten iron, prevents smoke-dust from escaping.It is roof cover 11, top draft hood 8, secondary
Petticoat pipe 9, side-draught hood 10 and hot-metal bottle cover 12, which are converged by flue, is connected to external deduster, is used for roof cover
11, the dust-laden high-temperature flue gas that top draft hood 8, secondary petticoat pipe 9, side-draught hood 10 and hot-metal bottle cover 12 trap is through external deduster dedusting
After be discharged.Extraneous fresh air is sent into from air inlet 4 along workshop bottom level, will be divided and is contained caused by iron runner 7, slag runner 5 and sow 6
Dirt high-temperature flue gas horizontal direction blast furnace direction pushes to side-draught hood 10, and under the guidance of side-draught hood 10, the flue gas is summarized to blast furnace
Before, then by the trapping of top draft hood 8 and secondary petticoat pipe 9, flue gas is promoted along blast furnace, finally converges to the flue gas not trapped
Workshop top front end, then trapped by roof cover 11, arresting efficiency is high, and force ventilation amount is small, energy-efficient.
It is preferred that Fig. 1 shows mill construction and the ventilation of the medium and small blast furnace cast house of the utility model embodiment offer
Dust pelletizing system.The blast furnace heat size is 1080m3, 2,000,000 t/ of iron, possesses a tapping hole out.Cast house mill construction packet
It includes: totally enclosed workshop top 2 and surrounding enclosing 3, and have the elongated type air inlet 4 in right side enclosing bottom.Sealing power house is using light
Body steel construction, body supports use encapsulation process by workshop column, enclosing and workshop top lap-joint.Elongated type air inlet is new
Wind entrance, air inlet open height are 2m, and wind speed 2-5m/s is entered the wind in tiny structure design.Force ventilation dust pelletizing system mainly includes roof
Cover 11, the top draft hood 8 at tapping hole, secondary petticoat pipe 9, side-draught hood 10 and the equal measures of hot-metal bottle cover 12, and combine elongated type into
Air port 4, the air-flow flowing in optimizing tissue workshop, improves ventilation heat exchange and smoke-dust arresting efficiency.The setting of its roof cover 11 exists
At 1/3 before on the left of workshop top, ten thousand m of design air flow 10-203/ h carries out removing roof dust using force ventilation mode and guides workshop
Interior dust-laden high-temperature flue gas is flowed up along blast furnace.Top draft hood 8 is arranged above tapping hole sow 6, design air flow 20-40 ten thousand
m3/ h, for trapping the dust-laden high-temperature flue gas at tapping hole；The top of top draft hood 8, blast furnace operation is arranged in secondary petticoat pipe 9
The bottom of platform, ten thousand m of design air flow 10-203/ h, the secondary flue gas escaped for trapping top draft hood 8, top draft hood 8 and secondary fume
Cover 9 promotes the dust-laden high-temperature flue gas of cast house bottom jointly, assists the force ventilation and air current composition of roof cover 11.Side-draught hood 10
Setting is dividing iron runner 7 left side, and be open face workshop air inlet 4, ten thousand m of design air flow 5-103/ h, for trapping molten iron from main iron
Ditch 6 branches to the dust-laden high-temperature flue gas generated during point iron runner 7, and the lateral flow for reinforcing cast house bottom airflow converges to
Blast furnace iron notch.The setting of hot-metal bottle cover 12 is exported in each point of iron runner, ten thousand m of design air flow 5-103/ h is opened by valve transfer control
It closes, the dust-laden high-temperature flue gas discharged when for trapping molten iron injection hot-metal bottle.Roof cover 11, secondary petticoat pipe 9, side-draught hood 10, with
And the equal dust excluding hoods of hot-metal bottle cover 12 are converged by flue and are connected to external deduster.
It is calculated by fluid dynamic numerical simulation, in conjunction with workshop parameter and smoke-dust emission performance, utilizes dust excluding hood
The gravity-flow ventilation of force ventilation and air inlet 4, rationalization's workshop air flow direction.By side-draught hood 10 and hot-metal bottle cover 12, allow
The dust-laden high-temperature flue gas horizontal cross flowing that cast house platform divides iron runner 7, slag runner 5 and sow 6 to generate, and converge to blast furnace and go out
Iron mouth, then by roof cover 11, the dust-laden high-temperature flue gas of top draft hood 8 and the promotion blast furnace iron notch of secondary petticoat pipe 9, trap step by step,
And finally realize dust-laden high-temperature flue gas middle in and top out, and close to cast house platform and the regular air-flow stream of blast furnace iron notch
To reach the heat exchange of enhancing production operation area, raising ventilation heat exchange efficiency, reduction force ventilation air quantity, control flue gas in workshop
The purpose escaped with pollutants diffusion, prevention and treatment smoke-dusts such as CO.The mill construction of the medium and small blast furnace cast house and dust removal by ventilation system
Uniting has the economic benefit of energy efficiency.
Claims (10)
1. a kind of medium and small blast furnace cast house mill construction system, which is characterized in that it include mill construction, ventilating and purifying air system and
Medium and small blast furnace tapping field structure；Mill construction includes workshop top (2) and multiple enclosings (3), and mill construction is closed, workshop top
It (2) is non-sinkage type structure；Ventilating and purifying air system includes elongated type air inlet (4), and medium and small blast furnace tapping field structure includes blast furnace
(1), the side inside mill construction is arranged in blast furnace (1), in the bottom for the other side enclosing that the tapping hole of blast furnace (1) is just facing
Equipped with the air inlet (4), extraneous fresh air is sent into from the air inlet (4) along mill construction bottom level, by medium and small blast furnace
Dust-laden high-temperature flue gas caused by tapping field structure pushes to ventilating and purifying air system and trap simultaneously outlet.
2. a kind of medium and small blast furnace cast house mill construction system according to claim 1, which is characterized in that workshop top (2)
Section be trapezium structure, there are four enclosing (3) tools, respectively front side, rear side, left and right side enclosing, and blast furnace (1), which is arranged, to exist
Left side inside mill construction, on right side, the bottom of enclosing is equipped with the elongated type air inlet (4).
3. a kind of medium and small blast furnace cast house mill construction system described in one of -2 according to claim 1, which is characterized in that medium and small
Blast furnace casting field structure further includes the tapping hole of blast furnace, sow (6), divides iron runner (7) and slag runner (5), and blast furnace (1) is arranged in factory
The left side of room structure, close to left side enclosing, blast furnace iron notch is just facing right side wall gear, and blast furnace iron notch connects sow (6), main
Iron runner (6) includes horizontal segment and vertical section, direction horizontal extension of the horizontal segment of sow (6) towards right side enclosing, horizontal segment
End connect vertical section, vertical section extends towards the direction of front side enclosing, and the end of vertical section connects multiple points of iron runners (7),
Iron runner (7) are divided also to extend towards the direction of front side enclosing；Slag runner (5) connects the horizontal segment of sow (6) and towards rear side enclosing
Direction extend, and with the horizontal segment of sow (6) extend direction it is vertical.
4. a kind of medium and small blast furnace cast house mill construction system according to claim 3, which is characterized in that dust removal by ventilation system
System further includes top draft hood (8), secondary petticoat pipe (9), roof cover (11), side-draught hood (10) and hot-metal bottle cover (12)；The air inlet
(4) the enclosing bottom on right side is set, and is extended along the enclosing bottom on entire right side, and the air inlet (4) and height
The tapping hole of furnace is positioned opposite；Workshop top (2) is equipped with roof cover (11), and the right side of the blast furnace is arranged in roof cover (11), uses
The dust-laden high-temperature flue gas above trapping sow (6) prevents aggregation of the smoke-dust at the top of workshop and escapes.
5. a kind of medium and small blast furnace cast house mill construction system according to claim 4, which is characterized in that attached in tapping hole
Close sow (6) is equipped with top draft hood (8), and the top of top draft hood (8) is equipped with secondary petticoat pipe (9), for trapping top draft hood (8)
The secondary flue gas escaped；Top draft hood (8) and secondary petticoat pipe (9) play the role of promoting air-flow jointly, auxiliary roof cover (11)
Force ventilation and air current composition, so that the dust-laden for dividing iron runner (7), slag runner (5) and sow (6) to generate of the tapping field structure
After high-temperature flue gas orderly rises convergence along the blast furnace, is finally trapped by roof cover (11), reduce smoke-dust to cast house
The diffusion of structure platform and the heat radiation of high-temperature flue gas.
6. a kind of medium and small blast furnace cast house mill construction system according to claim 5, which is characterized in that dividing iron runner
(7) side-draught hood (10) towards the air inlet (4) is equipped between blast furnace (1), for trapping molten iron hanging down from sow (6)
Straight section branches to the dust-laden high-temperature flue gas generated during a point iron runner (7), and workshop bottom airflow level is guided to converge to blast furnace
Tapping hole assists the force ventilation of top draft hood (8), secondary petticoat pipe (9) and roof cover (11), promotes the orderly of dust-laden high-temperature flue gas
Lateral flow.
7. a kind of medium and small blast furnace cast house mill construction system according to claim 6, which is characterized in that in each point of iron runner
(7) outlet is equipped with hot-metal bottle cover (12), and by valve transfer, control opening and closing is discharged when for trapping hot-metal bottle injection molten iron
Flue dust prevents smoke-dust from escaping.
8. a kind of medium and small blast furnace cast house mill construction system according to claim 7, which is characterized in that roof cover
(11), top draft hood (8), secondary petticoat pipe (9), side-draught hood (10) and hot-metal bottle cover (12), which are converged by flue, is connected to
External deduster is used for roof cover (11), top draft hood (8), secondary petticoat pipe (9), side-draught hood (10) and hot-metal bottle cover (12)
The dust-laden high-temperature flue gas of trapping is discharged after external deduster dedusting.
9. a kind of medium and small blast furnace cast house mill construction system according to claim 8, which is characterized in that extraneous fresh air is certainly
Air inlet (4) is sent into along workshop bottom level, will divide dust-laden high temperature cigarette caused by iron runner (7), slag runner (5) and sow (6)
Gas horizontal direction blast furnace direction pushes to side-draught hood (10), and under side-draught hood (10) guidance, the flue gas is summarized supreme stokehold, then
By the trapping of top draft hood (8) and secondary petticoat pipe (9), flue gas is promoted along blast furnace, finally converges to the flue gas not trapped
Workshop top front end, then trapped by roof cover (11), arresting efficiency is high, and force ventilation amount is small, energy-efficient.
10. a kind of medium and small blast furnace cast house mill construction system according to claim 1 or 2, which is characterized in that it is described into
Air port (4) high 1.5-3m, as fresh air inlet, wind speed 2-5m/s is entered the wind in tiny structure design.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820956995.2U CN208532836U (en) | 2018-06-21 | 2018-06-21 | A kind of medium and small blast furnace cast house mill construction system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820956995.2U CN208532836U (en) | 2018-06-21 | 2018-06-21 | A kind of medium and small blast furnace cast house mill construction system |
Publications (1)
| Publication Number | Publication Date |
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| CN208532836U true CN208532836U (en) | 2019-02-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108504809A (en) * | 2018-06-21 | 2018-09-07 | 中冶节能环保有限责任公司 | A kind of medium and small blast furnace cast house mill construction system |
| CN114381561A (en) * | 2022-01-24 | 2022-04-22 | 中冶建筑研究总院有限公司 | Heat and smoke control system for large and medium blast furnace cast house workshop |
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2018
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108504809A (en) * | 2018-06-21 | 2018-09-07 | 中冶节能环保有限责任公司 | A kind of medium and small blast furnace cast house mill construction system |
| CN108504809B (en) * | 2018-06-21 | 2023-06-13 | 中冶节能环保有限责任公司 | Factory building structural system of small and medium-sized blast furnace cast house |
| CN114381561A (en) * | 2022-01-24 | 2022-04-22 | 中冶建筑研究总院有限公司 | Heat and smoke control system for large and medium blast furnace cast house workshop |
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