CN203758291U - Rectangular smoke hood suitable for multi-loop direct current submerged arc furnace - Google Patents
Rectangular smoke hood suitable for multi-loop direct current submerged arc furnace Download PDFInfo
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- CN203758291U CN203758291U CN201420122523.9U CN201420122523U CN203758291U CN 203758291 U CN203758291 U CN 203758291U CN 201420122523 U CN201420122523 U CN 201420122523U CN 203758291 U CN203758291 U CN 203758291U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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Abstract
The utility model provides a rectangular smoke hood suitable for a multi-loop direct current submerged arc furnace. The rectangular smoke hood suitable for the multi-loop direct current submerged arc furnace comprises twelve smoke hood pieces connected through insulating bolts, each smoke hood piece is a tubular water cooling structure, and the twelve smoke hood pieces form the rectangular smoke hood, wherein the four corners of the rectangular smoke hood are circular corners, and the tubular water cooling top face of the rectangular smoke hood and the furnace inner side of the tubular water cooling outer side faces at the periphery of the rectangular hood are coated with a fire-resistant material knot layer; a material tube pass-through hole, a smoke pass-through hole and an electrode pass-through hole are formed in the top face of the rectangular smoke hood, a material pushing door and an access door are arranged on the side face of the rectangular smoke hood, and the access door is controlled to open and close by a hydraulic lifting device. The bottom of the smoke hood is located on a floor slab, and the top of the smoke hood is hung to an upper floor slab through an insulating hanger device. The rectangular smoke hood suitable for the multi-loop direct current submerged arc furnace has the advantages that the smoke hood is light in weight, safe and reliable in hydraulic operation, easy to start and close, small in occupied space, favorable for observing the situation inside the furnace when the material pushing door is lifted, material pushing is more convenient to operate, good in the overall intensity, and not prone to deforming.
Description
Technical field
The utility model belongs to smelting mechanical equipment field, particularly multiloop DC-ore-heating furnace petticoat pipe.
Background technology
Mineral hot furnace is divided into and exchanges mineral hot furnace and DC-ore-heating furnace by power supply mode.
Conventionally the petticoat pipe that interchange mineral hot furnace is used is circular, and three electrode holes are 120 ° and distribute along even circumferential.In the interchange mineral hot furnace of high-capacity, also have and adopt rectangle petticoat pipe, its electrode hole quantity is six, and six electrode hole one words equidistantly arrange.DC-ore-heating furnace is low capacity electric furnace at present, stagged electrode structure form, and its petticoat pipe is circular, center arranges an electrode hole.Exchange mineral hot furnace and DC-ore-heating furnace petticoat pipe, in prior art, have two kinds of smoke hood structure forms:
One is shell-and-plate welding water-cooling structure, and petticoat pipe is connected and composed by several lobes, between lobe and lobe, is connected with insulated bolt.According to the needs of smelting process, on water-cooling cover plate and on water-cooled sidewall, be furnished with material pipe and pass through hole, electrode by hole, access door, actuating doors etc. by hole, flue gas.The each lobe of petticoat pipe is water-cooling structure, and water cavity cross section is rectangle, by towards the base plate of burner hearth be welded on many groups dividing plate above base plate and top board that closed cavity is used forms.The deficiency of this structure is: weld seam extends with water route, and weld seam is very long, and weld bond cracking, petticoat pipe drainage occur often in work; In petticoat pipe lobe regional area water cavity out-of-shape, easily form slough, cause local petticoat pipe overheated, and then it is damaged and leak to accelerate partial structurtes, once petticoat pipe leak, if processed not in time, water flows in high-temperature burner hearth, has the danger of the accident of blasting, and has potential safety hazard.
Two is water-cooled skeleton cover-plate type structure, and petticoat pipe has one and the onesize water-cooled skeleton of its diameter,? be arranged on the top of water-cooled column, support the top of whole petticoat pipe.On water-cooled skeleton, pipe-type water-cooling cover plate is installed, in the outside of water-cooled column, pipe-type water-cooling sidewall is installed.The deficiency of this structure is: 1, water-cooled skeleton is overall structure, is unfit to do greatly, does to be both inconvenient to transport after large and is also inconvenient to change; What 2, water-cooled skeleton easily occurred that crackle or perforation cause leaks, thereby causes heating blowing-out.The main cause that water-cooled skeleton leaks has: the weight at (1) petticoat pipe top self is heavier, and petticoat pipe top is provided with many heavier parts (as chimney, material pipe) simultaneously, makes the inside of water-cooled skeleton produce larger mechanical stress; (2) impurity in cooling water or calcium ions and magnesium ions deposition or fouling on the water channel of water-cooled skeleton inside gradually, has affected the cooling effect to water-cooled skeleton; (3) temperature of mineral hot furnace boiler face significantly fluctuation along with the variation of operation, causes the also fluctuation thereupon of temperature of water-cooled skeleton, makes the larger thermal stress of the inner generation of water-cooled skeleton; (4) water-cooled skeleton is welded by multiple material conventionally, on the weld seam of foreign material docking, more easily occurs crackle.
In addition, the petticoat pipe of prior art, except the defect that easy high temperature leaks, also exists access door to open the problems such as difficulty, pusher door position is on the low side.Tradition access door is manual double door, and access door is internal water cooling, plug-in knotting form, and weight is heavier, while opening, need to take very large manpower, and after opening, takies space for maintenance.Pusher door is arranged in petticoat pipe bottom, is unfavorable for operation when pusher, is also unfavorable for observing, and does not meet the requirement of ergonomics.
Summary of the invention
The purpose of this utility model is to provide a kind of rectangle petticoat pipe of equipping multiloop DC-ore-heating furnace, overcoming traditional petticoat pipe high temperature leaks, access door opens and closes effort, pusher door position arranges the problems such as unreasonable, meets multiloop DC-ore-heating furnace electrode pilot seal, large exhaust gas volumn collection extraction, improves general technological requirements such as smelting environment.
The technical solution of the utility model is as follows: one is applicable to multiloop DC-ore-heating furnace petticoat pipe, comprise that the several petticoat pipe lobes that connect with insulated bolt form, be connected and insulated by ceramic fibre composite plate between petticoat pipe lobe, each petticoat pipe lobe is water-cooling structure, on petticoat pipe, be furnished with material pipe and pass through hole, flue gas passes through hole, electrode passes through hole, access door and pusher door, it is characterized in that: the water-cooling structure of described petticoat pipe lobe is pipe-type water-cooling structure, petticoat pipe lobe is 12, comprise one 2 of edge petticoat pipe lobes, 26 of edge petticoat pipe lobes, 32 of edge petticoat pipe lobes, 2 of center petticoat pipe lobes, wherein edge petticoat pipe lobe one, edge petticoat pipe lobe two and edge petticoat pipe lobe three are made up of pipe-type water-cooling end face and pipe-type water-cooling lateral surface, center petticoat pipe lobe is made up of pipe-type water-cooling end face, pipe-type water-cooling end face and pipe-type water-cooling lateral surface form by the water pipe row who is arranged side by side, between water pipe row's adjacent two water pipes, be welded and fixed, water pipe row is welded with uniformly goat's horn nail on the face in stove, the water pipe Wei Yi road recirculated water of each petticoat pipe lobe, each petticoat pipe lobe is provided with skeleton structure with the both sides that adjacent petticoat pipe lobe is connected, skeleton structure is by connecting plate, gusset and top board composition, connecting plate is the flat board that is provided with the setting of bolt hole, gusset is and connecting plate riser connected vertically, top board is the flat board that is fixed on gusset and connecting plate top, the bottom of connecting plate is fixedly connected with water pipe, gusset is placed on the water pipe row of pipe-type water-cooling end face below, the pipe-type water-cooling end face water pipe row of described edge petticoat pipe lobe one and edge petticoat pipe lobe three is shaped as by circular arc and is connected circular-arc that two right-angle sides form, edge petticoat pipe lobe one and edge petticoat pipe lobe three are symmetrical structure, the pipe-type water-cooling end face water pipe row of described edge petticoat pipe lobe two is shaped as rectangle, the pipe-type water-cooling end face water pipe row of described center petticoat pipe lobe is shaped as square, between two edge petticoat pipe lobes one, connect an edge petticoat pipe lobe two, between edge petticoat pipe lobe one and edge petticoat pipe lobe three, connect two edge petticoat pipe lobes two, Liang Jian center petticoat pipe lobe is connected to the coffin place that six edge petticoat pipe lobes two surround, form four rectangle petticoat pipes that angle is fillet, the stove inner side of the surrounding pipe-type water-cooling lateral surface of the pipe-type water-cooling end face of rectangle petticoat pipe and rectangle petticoat pipe is refractory material knotting layer, described material pipe is arranged in rectangle petticoat pipe end face by hole and electrode by hole by hole, flue gas, flue gas is arranged on edge petticoat pipe lobe one and edge petticoat pipe lobe three by hole, electrode is arranged on edge petticoat pipe lobe one, edge petticoat pipe lobe two, petticoat pipe Ban Sanhe center, edge petticoat pipe lobe by hole by hole and material pipe, and described material pipe is the through hole that connects petticoat pipe by hole, flue gas by hole by hole and electrode, described pusher door is arranged in the position, middle and lower part of rectangle petticoat pipe side, described access door is arranged in the side of rectangle petticoat pipe, and access door is pipe-type water-cooling structure, and access door is by hydraulic lift control opening and closing.
A kind of rectangle petticoat pipe that is applicable to multiloop DC-ore-heating furnace described in the utility model, it is characterized in that: described access door is 6, be separately positioned on the pipe-type water-cooling lateral surface of 6 edge petticoat pipe lobes two, 6 edge petticoat pipe lobes two are provided with and the passage being communicated with in stove at access door correspondence position; Described pusher door is 6～12, is located at respectively on the pipe-type water-cooling lateral surface and access door of edge petticoat pipe lobe one, edge petticoat pipe lobe three.
A kind of rectangle petticoat pipe that is applicable to multiloop DC-ore-heating furnace described in the utility model, it is characterized in that: the hydraulic lift of described access door comprises two vertical pulleys, two horizontal pulleys, a hydraulic cylinder and two steel wire ropes, vertical pulley, horizontal pulley and hydraulic cylinder are fixed on the floor of rectangle petticoat pipe upper strata, two steel wire penetrating floors are wrapped between two vertical pulleys and two horizontal pulleys, one end of two steel wire ropes is connected on access door, the other end is connected on the piston rod of hydraulic cylinder, edge petticoat pipe lobe two is provided with access door lifting guide rail being positioned at access door both sides place, access door moves in lifting guide rail.
A kind of rectangle petticoat pipe that is applicable to multiloop DC-ore-heating furnace described in the utility model, is characterized in that: described flue gas is 2 or 4 by hole, uniform at rectangle petticoat pipe four fillet positions; Described material pipe is 4～12 by hole, uniform at rectangle petticoat pipe end face; Described electrode is 4～8 by hole, divides two to arrange and put in rectangle petticoat pipe middle part.
A kind of rectangle petticoat pipe that is applicable to multiloop DC-ore-heating furnace described in the utility model, it is characterized in that: the top of described rectangle petticoat pipe is provided with insulating suspension device, insulating suspension device is positioned on the top board of two connected petticoat pipe lobe skeleton structure connecting plate junctions at rectangle petticoat pipe top, and insulating suspension device is suspended on the floor on upper strata.
A kind of rectangle petticoat pipe that is applicable to multiloop DC-ore-heating furnace described in the utility model, is characterized in that: described insulating suspension device is the pre-compact form of many group dish spring elasticity.
A kind of rectangle petticoat pipe that is applicable to multiloop DC-ore-heating furnace described in the utility model, it is characterized in that: described edge petticoat pipe lobe one passes through circumference peripheral hardware one steel ring in hole with the flue gas of edge petticoat pipe lobe three upper surfaces, in steel ring, be provided with the high temperature resistant brick ring of a circle along flue gas by hole, high temperature resistant brick ring internal diameter and flue gas are isometrical by hole, furnace gas flue bottom is sitting on high temperature resistant brick ring, between furnace gas flue and high temperature resistant brick ring, seals by sand seal.
The beneficial effects of the utility model are:
1, round rectangle structure is applicable to the multiloop DC-ore-heating furnace of four electrodes, six electrodes and eight arrangement of electrodes, and electrode equates everywhere with petticoat pipe Edge Distance, rational in infrastructure;
2, electrode hole is two to arrange and put, and is different from other square furnace line-up-in-a-row type arrangements, and electrode heat is more concentrated, improves efficiency;
3, pipe-type water-cooling petticoat pipe lobe, weld bond is few, withstand voltage height, and water route whole process is isometrical, without slough, avoids hot-spot phenomenon, and good cooling results, avoids the ablation of petticoat pipe lobe to leak etc.;
4, flue gas, by the hole compactness that is artistically decorated, is conducive to furnace pressure equilibrium, is applicable to the large exhaust gas volumn of semi-hermetic stove and extracts out;
5, hydraulic lifting access door is univalve door, can rationally utilize factory building space, saves operating space than double door; Can automation mechanized operation, reduce labor workload; And personnel are away from high-temperature region, safer;
6, petticoat pipe is applied to DC-ore-heating furnace, and without alternating magnetic field, without vortex phenomenon, therefore petticoat pipe does not need to adopt stainless steel NULL, and material cost is lower.
7, pipe-type water-cooling structure is compared the weight saving of conventional panels shell-type water-cooling structure more than 30%, has more the market competitiveness.
8, the setting of access door, has met stove overhauls burner hearth and electrode technological requirement at either party.
9, pusher door is high-order arranges, handled easily work close-ups and the furnace charge of napping, make burden distribution more even, avoids electrode to lack material phenomenon around.
10, sealed insulation processing has all been done in petticoat pipe lobe junction, makes petticoat pipe work safer, avoids electrode electric leakage casualty accident.
11, dish spring prefastening insulating suspension device is evenly distributed on petticoat pipe lobe main stress point, effectively prevents petticoat pipe distortion; And mutually insulated between insulating suspension device and petticoat pipe lobe and upper strata floor, maltilevel security guarantee is more felt at ease operation.
12, applied range, can be widely used in mineral hot furnace market, can alleviate weight of equipment, improves smelting operation environment and security, and petticoat pipe lobe weight can reduce more than 30%, can on furnace of calcium carbide, iron alloy electric furnace, apply.
Brief description of the drawings
Fig. 1 is the rectangle petticoat pipe front view that is applicable to multiloop DC-ore-heating furnace of the present utility model
Fig. 2 is that the A-A of Fig. 1 is to view (the rectangle petticoat pipe top view of multiloop DC-ore-heating furnace)
Fig. 3 is that the B-B of Fig. 2 is to view (petticoat pipe lobe connecting portion partial schematic diagram)
Fig. 4 is the X partial enlarged drawing of Fig. 1
Fig. 5 is access door hydraulic lift schematic diagram
Fig. 6 is the Y partial enlarged drawing of Fig. 1
In figure, 1. edge petticoat pipe lobe one, 2. edge petticoat pipe lobe two, 3. center petticoat pipe lobe, 4. edge petticoat pipe lobe three, 5. furnace gas flue, 6. access door, 7. pusher door, 8. electrode seal guide sleeve, 9. electrode column, 10. material pipe, 11. refractory material knotting layers, 12. access door hydraulic lifts, 13. insulating suspension devices, 14. ceramic fibre composite plates, 15. insulated bolt devices one, 16. dish springs, 17. vertical pulleys, 18. hydraulic cylinders, 19. steel wire ropes, 20. horizontal pulleys, 21. micarexs, 22 insulated bolt devices two.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Embodiment is the 30MW multiloop DC-ore-heating furnace petticoat pipe of six electrode holes, comprise that 12 petticoat pipe lobes that connect with insulated bolt form, be connected and insulated by ceramic fibre composite plate 14 between petticoat pipe lobe, each petticoat pipe lobe is water-cooling structure, on petticoat pipe, be furnished with material pipe and pass through hole, flue gas passes through hole, electrode passes through hole, access door 6 and pusher door 7, petticoat pipe lobe is pipe-type water-cooling structure, 12 petticoat pipe lobes comprise one 1 two of edge petticoat pipe lobes, 226 of edge petticoat pipe lobes, 342 of edge petticoat pipe lobes, 3 two of center petticoat pipe lobes, wherein edge petticoat pipe lobe 1, edge petticoat pipe lobe 22 and edge petticoat pipe lobe 34 are made up of pipe-type water-cooling end face and pipe-type water-cooling lateral surface, center petticoat pipe lobe 3 is made up of pipe-type water-cooling end face, pipe-type water-cooling end face and pipe-type water-cooling lateral surface form by the water pipe row who is arranged side by side, between water pipe row's adjacent two water pipes, be welded and fixed, water pipe is discharged to being welded with uniformly goat's horn nail on the face in stove, the water pipe Wei Yi road recirculated water of each petticoat pipe lobe, each petticoat pipe lobe is provided with skeleton structure with the both sides that adjacent petticoat pipe lobe is connected, skeleton structure is by connecting plate, gusset and top board composition, connecting plate is the flat board that is provided with the setting of bolt hole, gusset is and connecting plate riser connected vertically, top board is the flat board that is fixed on gusset and connecting plate top, the bottom of connecting plate is fixedly connected with water pipe, gusset is placed on the water pipe row of pipe-type water-cooling end face below, the pipe-type water-cooling end face water pipe row of edge petticoat pipe lobe 1 and edge petticoat pipe lobe 34 is shaped as by circular arc and is connected circular-arc that two right-angle sides form, edge petticoat pipe lobe 1 and edge petticoat pipe lobe 34 are symmetrical structure, the pipe-type water-cooling end face water pipe row of edge petticoat pipe lobe 22 is shaped as rectangle, the pipe-type water-cooling end face water pipe row of center petticoat pipe lobe 3 is shaped as square, between two edge petticoat pipe lobes 1, connect an edge petticoat pipe lobe 22, between edge petticoat pipe lobe 1 and edge petticoat pipe lobe 34, connect two edge petticoat pipe lobes 22, Liang Jian center petticoat pipe lobe 3 is connected to the coffin place that six edge petticoat pipe lobes 22 surround, form four rectangle petticoat pipes that angle is fillet, the stove inner side of the surrounding pipe-type water-cooling lateral surface of the pipe-type water-cooling end face of rectangle petticoat pipe and rectangle petticoat pipe is refractory material knotting layer 11, the top of rectangle petticoat pipe is provided with insulating suspension device 13, insulating suspension device 13 is positioned on the top board of two connected petticoat pipe lobe skeleton structure connecting plate junctions at rectangle petticoat pipe top, insulating suspension device 13 is suspended on the floor on upper strata, insulating suspension device 13 is the pre-compact form of many group dish spring elasticity, 12 material pipes are arranged in rectangle petticoat pipe end face by hole and 6 electrodes by hole by hole, 4 flue gases, material pipe is the through hole that connects petticoat pipe by hole, flue gas by hole by hole and electrode, 12 material pipes are arranged on edge petticoat pipe lobe 1, edge petticoat pipe lobe 22, edge petticoat pipe lobe 34 and center petticoat pipe lobe 3 by hole, material pipe 10 is inserted feeding pipe by hole, for raw materials for metallurgy enters the passage of stove, material pipe also seals with insulation board compacting by filling in ceramic fiber cotton between hole and material pipe 10, 4 flue gases are arranged on edge petticoat pipe lobe 1 and edge petticoat pipe lobe 34 by hole, flue gas is by circumference peripheral hardware one steel ring in hole, in steel ring, be provided with the high temperature resistant brick ring of a circle along flue gas by hole, high temperature resistant brick ring internal diameter and flue gas are isometrical by hole, furnace gas flue 5 bottoms are sitting on high temperature resistant brick ring, between furnace gas flue 5 and high temperature resistant brick ring, seal by sand seal, 6 electrodes are arranged in edge petticoat pipe lobe 1 by hole, edge petticoat pipe lobe 22, on edge petticoat pipe lobe 34 and center petticoat pipe lobe 3, 6 electrodes divide two row's three row to arrange in rectangle petticoat pipe middle part by hole, electrode is established electrode seal guide sleeve 8 by hole place, double-deck cast copper sealing ring in electrode seal guide sleeve 8 is close on electrode column 9 under the pressure of Rear springs, sealing ring top arranges ceramic beaverboard flexible sealing, soft or hard dual-seal ensures sealing, and the stability of electrode column 9 while working.Between electrode seal guide sleeve 8 and each petticoat pipe lobe, accompany micarex 21 and be connected by insulated bolt device 2 22, while guaranteeing electrode column electric leakage, the insulating properties of petticoat pipe lobe itself, 10 pusher doors 7 are arranged in the position, middle and lower part of rectangle petticoat pipe side, be located at respectively on the pipe-type water-cooling lateral surface and access door of edge petticoat pipe lobe 1, edge petticoat pipe lobe 34, pusher door is band hinge double door, the not water-cooled of only tiing a knot, lightweight, switch is light, and door sill height, apart from petticoat pipe lower plane 400mm, facilitates personnel to observe and the pusher of bending, 6 access doors 6 are separately positioned on the pipe-type water-cooling lateral surface of 6 edge petticoat pipe lobes 22, 6 edge petticoat pipe lobes 22 are being provided with and the passage being communicated with in stove with access door correspondence position, access door 6 is pipe-type water-cooling structure, access door is controlled opening and closing by hydraulic lift 12, hydraulic lift 12 comprises two vertical pulleys 17, two horizontal pulleys 20, a hydraulic cylinder 18 and two steel wire ropes 19, vertical pulley 17, horizontal pulley 20 and hydraulic cylinder 18 are fixed on the floor of petticoat pipe upper strata, two steel wire ropes 19 are wrapped in two vertical pulleys 17 and two horizontal pulleys 20 through floor, one end of two steel wire ropes 19 is connected on access door 6, the other end is connected on the piston rod of hydraulic cylinder 18, edge petticoat pipe lobe 22 is provided with access door lifting guide rail at access door 6 both sides places, access door 6 moves in lifting guide rail.
Claims (7)
1. one kind is applicable to the rectangle petticoat pipe of multiloop DC-ore-heating furnace, comprise that the several petticoat pipe lobes that connect with insulated bolt form, be connected and insulated by ceramic fibre composite plate (14) between petticoat pipe lobe, each petticoat pipe lobe is water-cooling structure, on petticoat pipe, be furnished with material pipe and pass through hole, flue gas passes through hole, electrode passes through hole, access door (6) and pusher door (7), it is characterized in that: the water-cooling structure of described petticoat pipe lobe is pipe-type water-cooling structure, petticoat pipe lobe is 12, comprise one (1) 2 of edge petticoat pipe lobe, two (2) 6 of edge petticoat pipe lobes, three (4) 2 of edge petticoat pipe lobes, (3) 2 of center petticoat pipe lobes, wherein edge petticoat pipe lobe one (1), edge petticoat pipe lobe two (2) and edge petticoat pipe lobe three (4) are made up of pipe-type water-cooling end face and pipe-type water-cooling lateral surface, center petticoat pipe lobe (3) is made up of pipe-type water-cooling end face, pipe-type water-cooling end face and pipe-type water-cooling lateral surface form by the water pipe row who is arranged side by side, between water pipe row's adjacent two water pipes, be welded and fixed, water pipe is discharged to being welded with uniformly goat's horn nail on the face in stove, the water pipe Wei Yi road recirculated water of each petticoat pipe lobe, each petticoat pipe lobe is provided with skeleton structure with the both sides that adjacent petticoat pipe lobe is connected, skeleton structure is by connecting plate, gusset and top board composition, connecting plate is the flat board that is provided with the setting of bolt hole, gusset is and connecting plate riser connected vertically, top board is the flat board that is fixed on gusset and connecting plate top, the bottom of connecting plate is fixedly connected with water pipe, gusset is placed on the water pipe row of pipe-type water-cooling end face below, the pipe-type water-cooling end face water pipe row of described edge petticoat pipe lobe one (1) and edge petticoat pipe lobe three (4) is shaped as by circular arc and is connected circular-arc that two right-angle sides form, edge petticoat pipe lobe one (1) and edge petticoat pipe lobe three (4) are symmetrical structure, the pipe-type water-cooling end face water pipe row of described edge petticoat pipe lobe two (2) is shaped as rectangle, the pipe-type water-cooling end face water pipe row of described center petticoat pipe lobe (3) is shaped as square, between two edge petticoat pipe lobes one (1), connect an edge petticoat pipe lobe two (2), between edge petticoat pipe lobe one (1) and edge petticoat pipe lobe three (4), connect two edge petticoat pipe lobes two (2), Liang Jian center petticoat pipe lobe (3) is connected to the coffin place that six edge petticoat pipe lobes two (2) surround, form four rectangle petticoat pipes that angle is fillet, the stove inner side of the surrounding pipe-type water-cooling lateral surface of the pipe-type water-cooling end face of rectangle petticoat pipe and rectangle petticoat pipe is refractory material knotting layer (11), described material pipe is arranged in rectangle petticoat pipe end face by hole and electrode by hole by hole, flue gas, flue gas is arranged on edge petticoat pipe lobe one (1) and edge petticoat pipe lobe three (4) by hole, it is upper that electrode is arranged in edge petticoat pipe lobe one (1), edge petticoat pipe lobe two (2), edge petticoat pipe lobe three (4) and center petticoat pipe lobe (3) by hole and material pipe by hole, and described material pipe is the through hole that connects petticoat pipe by hole, flue gas by hole by hole and electrode, described pusher door (7) is arranged in the position, middle and lower part of rectangle petticoat pipe side, described access door (6) is arranged in the side of rectangle petticoat pipe, and access door (6) is pipe-type water-cooling structure, and access door is controlled opening and closing by hydraulic lift (12).
2. a kind of rectangle petticoat pipe that is applicable to multiloop DC-ore-heating furnace according to claim 1, it is characterized in that: described access door (6) is 6, be separately positioned on the pipe-type water-cooling lateral surface of 6 edge petticoat pipe lobes two (2), 6 edge petticoat pipe lobes two (2) are being provided with and the passage being communicated with in stove with access door correspondence position; Described pusher door (7) is 6～12, is located at respectively on the pipe-type water-cooling lateral surface and 6 access doors (6) of edge petticoat pipe lobe one (1), edge petticoat pipe lobe three (4).
3. a kind of rectangle petticoat pipe that is applicable to multiloop DC-ore-heating furnace according to claim 2, it is characterized in that: the hydraulic lift (12) of described access door (6) comprises two vertical pulleys (17), two horizontal pulleys (20), a hydraulic cylinder (18) and two steel wire ropes (19), vertical pulley (17), horizontal pulley (20) and hydraulic cylinder (18) are fixed on the upper strata floor of rectangle petticoat pipe, two steel wire ropes (19) are wrapped in two vertical pulleys (17) and two horizontal pulleys (20) through floor, one end of two steel wire ropes (19) is connected on access door (6), the other end is connected on the piston rod of hydraulic cylinder (18), edge petticoat pipe lobe two (2) is provided with access door lifting guide rail being positioned at access door (6) both sides place, access door (6) moves in lifting guide rail.
4. a kind of rectangle petticoat pipe that is applicable to multiloop DC-ore-heating furnace according to claim 1, is characterized in that: described flue gas is 2 or 4 by hole, uniform at rectangle petticoat pipe four fillet positions; Described material pipe is 4～12 by hole, uniform at rectangle petticoat pipe end face; Described electrode is 4～8 by hole, divides two to arrange and put in rectangle petticoat pipe middle part.
5. a kind of rectangle petticoat pipe that is applicable to multiloop DC-ore-heating furnace according to claim 1, it is characterized in that: the top of described rectangle petticoat pipe is provided with insulating suspension device (13), insulating suspension device (13) is positioned on the top board of two connected petticoat pipe lobe skeleton structure connecting plate junctions at rectangle petticoat pipe top, and insulating suspension device (13) is suspended on the floor on upper strata.
6. a kind of rectangle petticoat pipe that is applicable to multiloop DC-ore-heating furnace according to claim 5, is characterized in that: described insulating suspension device (13) is the pre-compact forms of many group dish spring elasticity.
7. a kind of rectangle petticoat pipe that is applicable to multiloop DC-ore-heating furnace according to claim 1, it is characterized in that: described edge petticoat pipe lobe one (1) passes through circumference peripheral hardware one steel ring in hole with the flue gas of edge petticoat pipe lobe three (4) upper surfaces, in steel ring, be provided with the high temperature resistant brick ring of a circle along flue gas by hole, high temperature resistant brick ring internal diameter and flue gas are isometrical by hole, furnace gas flue (5) bottom is sitting on high temperature resistant brick ring, between furnace gas flue (5) and high temperature resistant brick ring, seals by sand seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420122523.9U CN203758291U (en) | 2014-03-18 | 2014-03-18 | Rectangular smoke hood suitable for multi-loop direct current submerged arc furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420122523.9U CN203758291U (en) | 2014-03-18 | 2014-03-18 | Rectangular smoke hood suitable for multi-loop direct current submerged arc furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203758291U true CN203758291U (en) | 2014-08-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420122523.9U Withdrawn - After Issue CN203758291U (en) | 2014-03-18 | 2014-03-18 | Rectangular smoke hood suitable for multi-loop direct current submerged arc furnace |
Country Status (1)
| Country | Link |
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| CN (1) | CN203758291U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822497A (en) * | 2014-03-18 | 2014-05-28 | 大连华锐重工集团股份有限公司 | Rectangular hood suitable for multi-loop DC submerged arc furnace |
| CN113587658A (en) * | 2021-08-02 | 2021-11-02 | 江苏积力环保科技有限公司 | Submerged arc furnace |
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2014
- 2014-03-18 CN CN201420122523.9U patent/CN203758291U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822497A (en) * | 2014-03-18 | 2014-05-28 | 大连华锐重工集团股份有限公司 | Rectangular hood suitable for multi-loop DC submerged arc furnace |
| CN103822497B (en) * | 2014-03-18 | 2015-03-25 | 大连华锐重工集团股份有限公司 | Rectangular hood suitable for multi-loop DC submerged arc furnace |
| CN113587658A (en) * | 2021-08-02 | 2021-11-02 | 江苏积力环保科技有限公司 | Submerged arc furnace |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20140806 Effective date of abandoning: 20150325 |
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