CN110042182A - A kind of Blast Furnace Bottom automatic lead discharging device - Google Patents
A kind of Blast Furnace Bottom automatic lead discharging device Download PDFInfo
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- CN110042182A CN110042182A CN201910437236.4A CN201910437236A CN110042182A CN 110042182 A CN110042182 A CN 110042182A CN 201910437236 A CN201910437236 A CN 201910437236A CN 110042182 A CN110042182 A CN 110042182A
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- lead discharging
- lead
- compressor
- temperature
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- 238000007599 discharging Methods 0.000 title claims abstract description 97
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 82
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 41
- 239000007789 gas Substances 0.000 claims abstract description 21
- 230000004087 circulation Effects 0.000 claims abstract description 16
- 238000010438 heat treatment Methods 0.000 claims abstract description 11
- 238000004064 recycling Methods 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims abstract description 4
- 239000003507 refrigerant Substances 0.000 claims description 16
- 229910001220 stainless steel Inorganic materials 0.000 claims description 11
- 239000010935 stainless steel Substances 0.000 claims description 11
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 4
- 238000007906 compression Methods 0.000 claims description 4
- 239000012774 insulation material Substances 0.000 claims description 2
- 230000003139 buffering effect Effects 0.000 claims 1
- 230000000630 rising effect Effects 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 4
- 238000009825 accumulation Methods 0.000 abstract description 3
- 239000011449 brick Substances 0.000 abstract description 3
- 239000003517 fume Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 22
- 238000000034 method Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 239000000203 mixture Substances 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 210000005239 tubule Anatomy 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 206010049669 Dyscalculia Diseases 0.000 description 1
- 238000003723 Smelting Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/14—Discharging devices, e.g. for slag
Abstract
The present invention relates to a kind of Blast Furnace Bottom automatic lead discharging devices, including pressure nitrogen to adjust unit, compressor unit, temperature-regulating oven, heat exchanger, lead discharging component, exhaust unit, tracheae；The pressure nitrogen adjusts unit and is used to provide gas source to the supply air line of circulation, is discharged by exhaust unit；The compressor unit is used to utilize the nitrogen circulation in supply air line, conveys thermal energy；The temperature-regulating oven is for heating charge air flow；The heat exchanger is for recycling return-air air-flow thermal energy, pre-heating intaking air-flow；The lead discharging component is used to melt Solid Lead by high temperature hot gas stream and collects discharge.The present invention can continue or batch operation, so that the lead deposited in State of Blast Furnace bottom brick is able to accumulation discharge, solves the problems, such as the controllable discharge and collection of deposit lead in Blast Furnace Bottom, and can effectively prevent furnace bottom rising and cut down the damage by fume of cast house lead dust.
Description
Technical field
The present invention relates to technical field of metallurgical equipment, and in particular to a kind of Blast Furnace Bottom automatic lead discharging device.
Background technique
Blast furnace is in smelting production, because inevitably containing lead composition in crude fuel, and lead in furnace is caused to be enriched with.Lead is low
Fusing point, high specific gravity, in addition to Gas Flow takes away few part, most lead liquid can be deposited on cupola well bottommost, also have part mixed
The problems such as lead liquid of conjunction state flows out from iron mouth together with molten iron, causes stokehold lead dust damage by fume.No matter the lead liquid or iron at cupola well bottom
Mouthful, the lead dust lead liquid in air port, can all permeate, decline into furnace bottom brickwork joint in various ways.It is fewer because being discharged outside the furnace of lead, it sinks
Product lead then can be more and more, finally, can cause float block accident and furnace bottom rising phenomenon.Therefore, no matter a seat height furnace eats any original
Fuel is all considered as carrying out the discharge of furnace bottom lead.Especially some production age longer blast furnaces, and have occurred and that furnace bottom rising
Blast furnace, more it is necessary to carry out lead discharging operation.
The Blast Furnace Bottom lead discharging in existing literature data is inquired, has and just has contemplated that lead discharging in BF Design installation, side
Method is the setting lead discharging slot in bottom brick, is flowed out using the heat of lead itself with liquid.The shortcomings that this method is lead bath absolute altitude
Dyscalculia is too high to have molten iron risk of leakage；Too low, lead liquid temperature is insufficient, sinks distance not enough, lead discharging poor effect of flowing automatically.
Another passive lead discharging method is got into the cave in furnace shell aperture, is had liquid lead, is flow automatically；Solid-state lead deposit, plug is burnt
Charcoal adds wind to heat.This method lead discharging effect is obvious, but lead discharging point is few, and lead discharging operation is uncontrollable, and lead liquid stream has certain when going out
Risk, and can only single operation, lead discharging cannot be continued.
Therefore, it is necessary to design a kind of lead discharging device highly-safe, lead discharging is controllable, multi-point and wide-ranging, can continue or
Operation of having a rest so that furnace bottom deposit lead can be discharged at any time to cut down stokehold lead dust damage by fume, and prevents continuing for furnace bottom rising accident
Deteriorate.
Summary of the invention
The technical problem to be solved by the present invention is the present invention provides a kind of blast furnace in order to overcome the deficiencies in the existing technology
Furnace bottom automatic lead discharging device, the solid-state or liquid lead that deposit in Blast Furnace Bottom brickwork joint is smoothly discharged.
The technical solution adopted by the present invention to solve the technical problems is: a kind of Blast Furnace Bottom automatic lead discharging device, including
Unit, compressor unit, temperature-regulating oven, heat exchanger, lead discharging component and exhaust are adjusted by the pressure nitrogen of tracheae piping connection
Unit.
The pressure nitrogen adjusts unit and is used to provide gas source to the supply air line of circulation and be discharged by exhaust unit, the pressure
Contracting machine unit realizes recycling for nitrogen in supply air line and conveys thermal energy, and the temperature-regulating oven is used to heat charge air flow,
The heat exchanger for recycling return-air air-flow thermal energy and pre-heating intaking air-flow, the lead discharging component have protrude into Blast Furnace Bottom,
Solid Lead is melted by high temperature hot gas stream and collects the heat pipe of discharge.
It includes intake interface, small flow hand-operated valve, small flow rotor flowmeter, big flow that the pressure nitrogen, which adjusts unit,
Hand-operated valve and big flow spinner flowmeter；The small flow hand-operated valve and small flow rotor flowmeter are connected in series and constitute small stream
Amount adjusts branch, and the high flow manual valve and big flow spinner flowmeter are connected in series and constitute big flow and adjust branch；Institute
It states two adjusting branch circuit parallel connections and source nitrogen is supplied to the media port inlet side of heat exchanger.
The compressor unit includes compressor, Outlet check valves, overflow hand-operated valve, Compressor Inlet Pressure table, pressure
Contracting machine delivery gauge, Compressor Inlet Temperature table；Described compressor outlet connection outlet check valve one end, outlet are unidirectional
The valve other end is connected to heat exchanger media mouth inlet side；The compressor inlet is connected to heat exchanger refrigerant mouth outlet；It is described
Overflow hand-operated valve both ends and compressor inlet and outlet be connected to；The Compressor Inlet Pressure table is connected to compressor inlet pipeline
On, the compressor delivery pressure table is connected on compressor outlet pipeline, and the Compressor Inlet Temperature table is connected to compression
In machine inlet ductwork.
The temperature-regulating oven has pectination tracheae, and pectination tracheal entrance end connects heat exchanger media mouth outlet, pectination gas
Pipe outlet end, which is used as, is connected to lead discharging component for heating pipe, and temperature-regulating oven temperature is by the baking that is installed on temperature-regulating oven outlet tracheae
Case thermometer is detected.
The media port inlet side connect compressor outlet end of the heat exchanger, media port outlet connect temperature-regulating oven, refrigerant
The muffler of mouth inlet side and supply air line connects, and refrigerant mouth outlet is connected to compressor inlet.
The exhaust unit includes surge tank, exhaust check valve and exhaust port；Described surge tank one end is connected to pressure
Contracting machine input end, the surge tank other end are connected to exhaust check valve one end, and the exhaust check valve other end is connected to exhaust port, row
Gas orifice atmosphere.
The lead discharging component is by furnace shell flange part, collecting pipe, heat pipe, lead discharging bend pipe, air inlet pipe hand valve, exhaust pipe hand valve
Composition；The furnace shell of the furnace shell flange part and blast furnace is fixed, and collecting pipe one end and furnace shell flange part are connected, the collecting pipe other end with
Heat pipe is connected, and lead discharging bend pipe is fixed on heat pipe outer end face, and the heat pipe is by flange plate, stainless steel U-tube, air inlet elbow, exhaust
Elbow, thermometer hole short tube and lead discharging hole short tube composition, thermometer hole short tube and lead discharging hole short tube are respectively fixedly connected in flange plate front end face
Vertical direction upper and lower position, air inlet elbow and exhaust elbow are respectively fixedly connected at left and right sides of flange plate front end face horizontal direction, no
Rust steel U-tube is fixed on flange plate rear end face and protrudes into Blast Furnace Bottom, and air inlet pipe hand valve one end connection temperature-regulating oven goes out
Gas end, the air inlet pipe hand valve other end connect air inlet elbow；Exhaust pipe hand valve one end connection exhaust elbow, exhaust pipe hand valve are another
One end is connected to the refrigerant mouth inlet side of heat exchanger.
Above-mentioned lead discharging component is by absolute altitude distributing installation on three layers of different height of last furnace shell, wherein described is stainless
Steel U-tube includes being mounted on the long heat pipe of furnace shell middle layer and being mounted on the bilevel short heat pipe of furnace shell, and every layer of furnace shell is at least
Four lead discharging components are set, and the heat pipe input end of all lead discharging components, outlet end are connected to by valve.
The tracheae selects steel pipe, and tracheae outer surface is coated with thermal insulation material.
The beneficial effects of the present invention are: the present invention by furnace shell bury lead discharging component, internal circulation temperature-controllable
High temperature gas flow, so that the lead deposited in State of Blast Furnace bottom brick is able to accumulation discharge；By reasonable layout multi-point lead discharging hole, can make
Enriched lead discharge is more balanced in furnace, it is therefore prevented that in solidification and liquefied cyclic process when permeating lead liquid downwards because of temperature change
In caused by volume expansion, expand brickwork joint, and then cause furnace bottom rising, the generation for the serious accidents such as air port upwarps；Pass through circulation
The adjusting of hot stream temperature can make lead discharging operation orderly controllable, securely and reliably.
Detailed description of the invention
Present invention will be further explained below with reference to the attached drawings and examples.
Fig. 1 is process flow chart of the invention.
Fig. 2 is present invention process block diagram.
Fig. 3 is the centre section front view after lead discharging component installation of the present invention.
Fig. 4 is the centre section top view after lead discharging component installation of the present invention.
Fig. 5 is the positive structure diagram of furnace shell flange part of the present invention.
Fig. 6 is the left view structural representation of furnace shell flange part of the present invention.
Fig. 7 is the right side structural representation of furnace shell flange part of the present invention.
Fig. 8 is the structural schematic diagram of collecting pipe of the present invention.
Fig. 9 is the structural schematic diagram of the small flange of collecting pipe of the present invention.
Figure 10 is the structural schematic diagram of collecting pipe large flange of the present invention.
Figure 11 is the overlooking structure diagram of heat pipe of the present invention.
Figure 12 is the positive structure diagram of heat pipe of the present invention.
Figure 13 is the left view structural representation of heat pipe of the present invention.
Figure 14 is the right side structural representation of heat pipe of the present invention.
In figure: 101. intake interfaces, 102. small flow hand-operated valves, 103. small flow rotor flowmeters, 104. big flow hands
Dynamic valve, 105. big flow spinner flowmeters, 106. compressor delivery pressure tables, 107. Outlet check valves, 108. compressors, 109.
Compressor Inlet Pressure table, 110. surge tanks, 111. exhaust check valves, 112. exhaust ports, 113. oven temperature tables, 114. adjust
Warm baking oven, 115. overflow hand-operated valves, 116. Compressor Inlet Temperature tables, 117. tracheae suction temperature tables, 118. heat exchangers, 119.
Tracheae, 120. air inlet pipe hand valves, 121. long heat pipe lead discharging components, 122. short heat pipe lead discharging components, 123. exhaust pipe hand valves, 201.
Pressure nitrogen adjusts unit, 202. compressor units, 203. exhaust units, 204. lead discharging components, 301. lead discharging bend pipes, 302. heat
Pipe, 303. collecting pipes, 304. furnace shell flange parts, 305. furnace shells, 401. furnace shell flange part flanges, 402. furnace shell flange part short tubes,
The small flange of 501. collecting pipes, 502. collecting pipe extra heavy pipes, 503. collecting pipe large flanges, 504. collecting pipe tubules, 601. heat pipe flanges,
602. air inlet elbows, 603. thermometer hole short tubes, 604. lead discharging hole short tubes, 605. exhaust elbows, 606. stainless steel U-tubes.
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant to the invention.
A kind of Blast Furnace Bottom automatic lead discharging device as shown in Figure 1, operation process process is by shown in figure: source nitrogen (NS) from
Intake interface 101 introduces, adjusting branch of the gas source through two-way parallel connection, and one is small flow hand-operated valve 102 and small flow rotor stream
Meter 103 is composed in series, another to be composed in series for high flow manual valve 104 and big flow spinner flowmeter 105, later, gas source
118 media port inlet side of heat exchanger is led to, is drawn after exchanging heat by 118 media port outlet of heat exchanger, temperature adjustment is entered by tracheae 119
The input end of baking oven 114, tracheae 119 in temperature-regulating oven 114 in pectination arrangement absorb electric heater heat after, then from temperature adjustment dry
114 outlet end of case leads to blast furnace scene, as heating pipe.
When being connected to each long heat pipe lead discharging component 121 and short heat pipe lead discharging component 122 for heating pipe, opened on for heating pipe
An air inlet pipe hand valve 120 is installed in hole.Air stream outlet in each lead discharging component 204 connects an exhaust pipe hand valve 123, then
It is connected on muffler by aperture, muffler leads to 118 refrigerant mouth inlet side of heat exchanger, then from 118 refrigerant mouth outlet of heat exchanger
It draws, until 110 entrance of surge tank, the outlet of surge tank 110 connects exhaust check valve 111, then leads to exhaust port 112, and nitrogen is arranged
Into atmosphere.
The compressor 108 is as a kind of supplementary means for saving nitrogen consumption, and in process flow, compressor 108 passes through
Nitrogen circulation compression to circulating in tracheae 119, input end connect 118 refrigerant mouth outlet of heat exchanger, and outlet end passes through outlet
Check valve 107, which is connected to 118 media port inlet side of heat exchanger, can close high flow manual valve 104 when compressor 108 is run, only
It is adjusted to certain aperture with small flow hand-operated valve 102, to supplement the dissipation of nitrogen in circulation line.
An overflow hand-operated valve 115 in parallel between 108 entrance end of compressor simultaneously, passes through overflow hand-operated valve 115
Opening size come adjust compressor 108 for loading capability, when compressor 108 is not run, can pass through adjust big flow hand
The aperture of dynamic valve 104, carries out heat-carrying circulation to system with further amounts of gas source nitrogen.
In addition Compressor Inlet Pressure table 109 and Compressor Inlet Temperature table 116 are set in the input end of compressor 108,
In the outlet end of compressor 118, compressor delivery pressure table 106 is set；Baking oven is set on the outlet tracheae of temperature-regulating oven 114
Tracheae suction temperature table 117 is arranged in thermometer 113 on the refrigerant mouth inlet side tracheae of heat exchanger 118.
It is illustrated in figure 2 Simple process block diagram of the present invention, in figure, pressure nitrogen, which adjusts unit 201, to be responsible for supplying nitrogen to system
Gas, compressor unit 202 are responsible for the circulation of nitrogen in system tracheae, and exhaust unit 203 is responsible for nitrogen extra in system tracheae
Gas drains into atmosphere, and heat exchanger 118 is used to recycle the afterheat of return-air air-flow, includes two channels and four interfaces in heat exchanger 118,
Medium channel includes input end AI and outlet end AO, and refrigerant passage includes input end BI and outlet end BO, is circulated in medium channel
The low supply nitrogen of temperature, the high reflux nitrogen of circulating temperature, exchanges heat each other in refrigerant passage.Low temperature nitrogen is from heat exchanger 118
Medium entrance end flows into, and flows out after preheating from media outlet end, into reheating is carried out in temperature-regulating oven 114, is warming up to electricity
In the target temperature that heater is set, then 302 component of heat pipe that is supplied in live lead discharging component 204, lead discharging component 204 is returned
Gas nitrogen flow temperature is higher, leads to the refrigerant mouth inlet side of heat exchanger 118, and temperature reduces after heat exchange, goes out from 118 refrigerant mouth of heat exchanger
End is drawn, and is entered back into the suction port of compressor of compressor unit 202 or is drained into atmosphere from exhaust unit 203.
Center section plan after being installed on blast furnace for lead discharging component 204 as shown in Figure 3, Figure 4, the lead discharging portion
Part is by furnace shell flange part 304, collecting pipe 303, heat pipe 302, lead discharging bend pipe 301, air inlet pipe hand valve 120,123 groups of exhaust pipe hand valve
At.
The short tube of the furnace shell flange part 304 is inserted and is welded in the hole on furnace shell 305, and collecting pipe 303 with heat-insulated by arranging
The flange plate applied is fixedly connected with the flange of furnace shell flange part 304, when collecting pipe 303 is installed, is needed in advance in furnace shell flange part 304
Short tube central filler heat-barrier material, to prevent the infiltration of lead liquid from linking up collecting pipe 303 and furnace shell flange part 304, thus from furnace shell
305 distribute heat.The collecting pipe 303 includes large and small two panels flange and thick, thin two short tubes, and tubule is welded in large flange side,
Large flange is connect with furnace shell flange part 304, and tubule is located at the short tube center of furnace shell flange part 304, when carrying out provision for thermal insulation,
Lead liquid is flowed out from tubule outward without being in contact with furnace shell 305 and 304 phase of furnace shell flange part.303 large flange of collecting pipe
Cannon is welded in the other side, and small flange is welded in the cannon other side, and cannon can serve as a small storage tank of lead liquid.Heat pipe
302 are mainly made of a piece of small flange and pipe fitting, are opened on flange there are four recirculation hole, and wherein the two holes with vertical top (see Fig. 3) is welded
Temperature element provided pipe is connect, following welding lead discharging hole short tube 604, the one end two hole of level (see Fig. 4) soldering stainless steel U-tube 606,
The other end welds intake elbow 602 and exhaust elbow 605.
As Fig. 5~Fig. 7 show the structural schematic diagram of furnace shell flange part 304.The furnace shell flange part 304 is by a piece of
DN100 flange plate and one section of 20 centimetre length DN100 steel pipe composition.401 center opening of furnace shell flange part flange plugs in brazier shell process
Blue part short tube 402.6 bore dias, 22 millimeters of bolts hole are opened on flange, match M14 bolt.M14 bolt matches thermal sleeve, heat insulating mattress
Piece and nonstandard metal gasket, flange separately match 4 millimeters of thickness or more heat insulating mattress.
Such as the structural schematic diagram that Fig. 8~Figure 10 is collecting pipe 303.The collecting pipe 303 is by a piece of DN100 large flange, one
The small flange of piece DN80 and 24 centimetre length DN25 fine steel tubes and 10 centimetre length DN80 thick steel pipes composition.Collecting pipe large flange 503
Center opening inserts weldering collecting pipe tubule 504.Weld collecting pipe extra heavy pipe 502, collecting pipe extra heavy pipe 502 in the another side of collecting pipe large flange 503
The weldering small flange 501 of collecting pipe is inserted in another side, opens 4 M14 bolts hole on the small flange 501 of collecting pipe.
As Figure 11~Figure 14 show the structural schematic diagram of heat pipe 302.The heat pipe 302 by a piece of DN80 heat pipe flange
601, one 8 millimeters of outer diameter of stainless steel U-tube 606, one, 602, one, DN15 air inlet elbow DN15 is vented elbow 605, one
Root DN15 thermometer hole short tube 603 and a DN15 lead discharging hole short tube 604 form.Wherein, heat pipe flange 601 is in 26 millimeters of circles of radius
Four hole locations are uniformly distributed on week, two holes with vertical diameter is 15 millimeters, and two bore dia one of level is 9 millimeters, and another is 3 millimeters.
Weldering thermometer hole short tube 603 is inserted in the upper hole of 601 1 face two holes with vertical of heat pipe flange, for connecting temperature element, not with stifled when thermometric
Head closing；The lower opening of two holes with vertical inserts weldering lead discharging hole short tube 604, for connecting lead discharging bend pipe 301；Two hole of level is short in lead discharging hole
Air inlet elbow 602 and exhaust elbow 605,601 another side soldering stainless steel U-tube of heat pipe flange is respectively welded in 604 side of pipe
606, stainless steel U-tube 606 divides two kinds in length, referred to as long heat pipe and short heat pipe, normally, 2 meters of left sides of long heat pipe length
The right side, 1 meter or so of short heat pipe length；Lead discharging bend pipe 301 is the DN15 bend pipe of one U-shaped winding of band, 301 one end of lead discharging bend pipe and row
Lead hole short tube 604 is threadedly coupled, and 301 other end of lead discharging bend pipe has a conical nozzle, and for nozzle under, jet hole is straight when installation
2 millimeters of diameter；For heating pipe, the other end connects the air inlet elbow 602 of heat pipe 302 for 120 one end of air inlet pipe hand valve connection；It is described
123 one end of exhaust pipe hand valve connects the exhaust elbow 605 of heat pipe 302, and the other end connects muffler.
When circulation high temperature nitrogen in stainless steel U-tube 606, lead liquid can flow to collecting pipe along stainless steel U-tube 606
It is gathered in 303 extra heavy pipe, when the temperature for the lead discharging bend pipe 301 that lead discharging hole short tube 604 connects is more than lead fusing point, lead liquid will be from
It is discharged in lead discharging bend pipe 301.
When the lead discharging device works, select nitrogen as working media, to improve anti-explosion safety measure.Pass through compressor
108 circulations are as section nitrogen operational modes, when compressor 108 is run, by small 103 additional continuous of flow rotor flowmeter for nitrogen,
To prevent negative pressure from sucking air；When 108 failure of compressor cannot be run, continued by big flow spinner flowmeter 105 for nitrogen, with
Guarantee to continue heat supply；When 108 flow of compressor is greater than the circulation of device whole component, adjusted back by overflow hand-operated valve 115
Temperature degree when 108 underfed of compressor, passes through pressure nitrogen and adjusts unit 201 and increase nitrogen supply (NS)；Extra nitrogen is from tracheae
Gap at joint and exhaust unit 203 overflow into air；Air supply pipe is kept to have by adjusting nitrogen flow and overflow hand-operated valve 115
Certain normal pressure and muffler temperature is run in 108 allowed band of compressor.
There are two types of operational modes at work for the temperature-regulating oven 114: one, low-temperature circulating collects lead liquid, at this time temperature
It is arranged in 350 degree or so, the nozzle of lead discharging bend pipe 301 because conduction heat is insufficient, has Solid Lead blocking, heat pipe 302 is followed in low temperature
Slowly the lead in furnace bottom brickwork joint is adsorbed in fusing in ring, and fills up the space where heat pipe 302；Two, regular high temperature circulation discharges lead
Liquid, temperature setting is at 450 degree or so at this time, and the hanging container under lead discharging bend pipe 301, contain part water, by high temperature conduction or
Additional heating means make 301 temperature of lead discharging bend pipe rise to lead fusing point or more, when high furnace pressure is permeated by brickwork joint at this time, lead
Liquid is flowed out from the nozzle of lead discharging bend pipe 301, is cooled directly with water in a reservoir, galvanized wire can be automatically formed when lead liquid measure is larger；Lead liquid row
Stop heat supply for a period of time after discharging, for lead discharging bend pipe 301 because of natural cooling, the remaining lead stayed in nozzle and lead discharging bend pipe 301 is solidifying
Gu blocking lead discharging channel, then proceeds by low-temperature circulating and collect lead liquid mode.
The present invention is by drilling through several holes in the following proper height in blast furnace crucibe portion and point, embedded lead discharging component 204,
Contain circulating gas pipe, the controllable high temperature nitrogen air-flow of circulating temperature in lead discharging component 204, to make to consolidate in furnace molten lead to lead discharging portion
The fusing accumulation of part 204, then periodically collected by the discharge of lead discharging hole.
For energy saving, the difference of position of opening and depth, lead discharging component 204 both may be heat supply, it is also possible to inhale
Heat, by the circulation of air-flow, the heat of absorption can be supplied to the lead discharging component 204 of other low temperature again, in this way, using electric energy into
Row can save a part of electric quantity consumption when auxiliary hot.
By adjust circulating current temperature height can make lead discharging component 204 be in slowly collect lead liquid status or outward
Quick lead discharging state, to keep furnace bottom lead discharging automatically controllable.
Make airflow circulating by compressor 108, and adding the auxiliary heat of electricity for gas side, return side is using heat exchanger recycling heat
Can, so that device energy utilization rate be made to maximize.
Circulating current uses nitrogen, when preventing lead discharging component 204 from revealing, has explosion danger using air circulation.Also,
Nitrogen is usually pressure source, when compressor 108 does not work, equally outside heat can persistently be supplied using nitrogen flow is increased
It is given to lead discharging component 204.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (8)
1. a kind of Blast Furnace Bottom automatic lead discharging device, it is characterized in that: include adjusted by the pressure nitrogen of tracheae piping connection unit,
Compressor unit, temperature-regulating oven, heat exchanger, lead discharging component and exhaust unit, the pressure nitrogen adjust unit and are used for circulation
Supply air line provide and gas source and be discharged by exhaust unit, the compressor unit realizes recycling for nitrogen in supply air line
And thermal energy is conveyed, the temperature-regulating oven is for heating charge air flow, and the heat exchanger is for recycling return-air air-flow thermal energy and preheating
Charge air flow, the lead discharging component, which has, to be protruded into Blast Furnace Bottom, Solid Lead is melted by high temperature hot gas stream and collects discharge
Heat pipe.
2. Blast Furnace Bottom automatic lead discharging device as described in claim 1, it is characterized in that: the pressure nitrogen adjusting unit includes
Intake interface, small flow hand-operated valve, small flow rotor flowmeter, high flow manual valve and big flow spinner flowmeter；It is described small
Flow hand-operated valve and small flow rotor flowmeter are connected in series and constitute small flow and adjust branch, the high flow manual valve and big
Flow rotor flowmeter is connected in series and constitutes big flow and adjust branch；Described two adjust branch circuit parallel connection and are supplied to source nitrogen and change
The media port inlet side of hot device.
3. Blast Furnace Bottom automatic lead discharging device as described in claim 1, it is characterized in that: the compressor unit includes compression
Machine, Outlet check valves, overflow hand-operated valve, Compressor Inlet Pressure table, compressor delivery pressure table, Compressor Inlet Temperature table；
Described compressor outlet connection outlet check valve one end, the Outlet check valves other end are connected to heat exchanger media mouth inlet side；
The compressor inlet is connected to heat exchanger refrigerant mouth outlet；The overflow hand-operated valve both ends and compressor inlet and outlet connect
It is logical；The Compressor Inlet Pressure table is connected to compressor inlet tube road, and the compressor delivery pressure table is connected to compression
On machine export pipeline, the Compressor Inlet Temperature table is connected to compressor inlet tube road.
4. Blast Furnace Bottom automatic lead discharging device as described in claim 1, it is characterized in that: the temperature-regulating oven has pectination gas
Pipe, pectination tracheal entrance end connect heat exchanger media mouth outlet, and pectination tracheae outlet end, which is used as, is connected to lead discharging portion for heating pipe
Part, temperature-regulating oven temperature are detected by the oven temperature table being installed on temperature-regulating oven outlet tracheae.
5. Blast Furnace Bottom automatic lead discharging device as described in claim 1, it is characterized in that: the media port inlet side of the heat exchanger
Connect compressor outlet end, media port outlet connect temperature-regulating oven, the muffler connection of refrigerant mouth inlet side and supply air line, refrigerant
Mouth outlet is connected to compressor inlet.
6. Blast Furnace Bottom automatic lead discharging device as described in claim 1, it is characterized in that: the exhaust unit includes buffering
Tank, exhaust check valve and exhaust port；Described surge tank one end is connected to compressor inlet, and the surge tank other end is connected to row
Gas check valve one end, the exhaust check valve other end are connected to exhaust port, and exhaust port is connected to atmosphere.
7. Blast Furnace Bottom automatic lead discharging device as described in claim 1, it is characterized in that: the lead discharging component is by furnace shell flange
Part, collecting pipe, heat pipe, lead discharging bend pipe, air inlet pipe hand valve, exhaust pipe hand valve group at；The furnace shell of the furnace shell flange part and blast furnace
Fixed, collecting pipe one end and furnace shell flange part are connected, and the collecting pipe other end and heat pipe are connected, and lead discharging bend pipe is fixed on heat pipe outer end
Face, the heat pipe are made of flange plate, stainless steel U-tube, air inlet elbow, exhaust elbow, thermometer hole short tube and lead discharging hole short tube,
Thermometer hole short tube and lead discharging hole short tube are respectively fixedly connected in flange plate front end face vertical direction upper and lower position, and air inlet elbow and exhaust are curved
Head is respectively fixedly connected at left and right sides of flange plate front end face horizontal direction, and stainless steel U-tube is fixed on flange plate rear end face and protrudes into
In Blast Furnace Bottom, described air inlet pipe hand valve one end connects temperature-regulating oven outlet side, and the air inlet pipe hand valve other end connects air inlet elbow；
Exhaust pipe hand valve one end connection exhaust elbow, the exhaust pipe hand valve other end are connected to the refrigerant mouth inlet side of heat exchanger.
8. Blast Furnace Bottom automatic lead discharging device as described in claim 1, it is characterized in that: the tracheae selects steel pipe, tracheae
Outer surface is coated with thermal insulation material.
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| CN201910437236.4A CN110042182B (en) | 2019-05-24 | 2019-05-24 | Automatic lead discharging device for blast furnace bottom |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910437236.4A CN110042182B (en) | 2019-05-24 | 2019-05-24 | Automatic lead discharging device for blast furnace bottom |
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| CN110042182A true CN110042182A (en) | 2019-07-23 |
| CN110042182B CN110042182B (en) | 2023-12-26 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001208318A (en) * | 1996-09-20 | 2001-08-03 | Sumitomo Metal Ind Ltd | Gasification melting furnace for waste and therefor |
| CN201785415U (en) * | 2010-09-03 | 2011-04-06 | 石欣 | Automatic lead discharging device |
| CN201793602U (en) * | 2010-09-17 | 2011-04-13 | 唐利中 | Novel fully-closed lead discharge tank for blast-furnace bottom |
| CN104401736A (en) * | 2014-10-20 | 2015-03-11 | 无锡红旗除尘设备有限公司 | Lead powder and nitrogen gas closed-cycle static-pressure dense-phase sectional boosting pneumatic conveying system |
| CN208427714U (en) * | 2018-06-30 | 2019-01-25 | 中国船舶重工集团衡远科技有限公司 | Lead acid accumulator plate grid continuous casting cover half |
| CN209906817U (en) * | 2019-05-24 | 2020-01-07 | 中天钢铁集团有限公司 | Automatic lead discharging device at bottom of blast furnace |
-
2019
- 2019-05-24 CN CN201910437236.4A patent/CN110042182B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001208318A (en) * | 1996-09-20 | 2001-08-03 | Sumitomo Metal Ind Ltd | Gasification melting furnace for waste and therefor |
| CN201785415U (en) * | 2010-09-03 | 2011-04-06 | 石欣 | Automatic lead discharging device |
| CN201793602U (en) * | 2010-09-17 | 2011-04-13 | 唐利中 | Novel fully-closed lead discharge tank for blast-furnace bottom |
| CN104401736A (en) * | 2014-10-20 | 2015-03-11 | 无锡红旗除尘设备有限公司 | Lead powder and nitrogen gas closed-cycle static-pressure dense-phase sectional boosting pneumatic conveying system |
| CN208427714U (en) * | 2018-06-30 | 2019-01-25 | 中国船舶重工集团衡远科技有限公司 | Lead acid accumulator plate grid continuous casting cover half |
| CN209906817U (en) * | 2019-05-24 | 2020-01-07 | 中天钢铁集团有限公司 | Automatic lead discharging device at bottom of blast furnace |
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|---|---|
| CN110042182B (en) | 2023-12-26 |
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