CN101509724A - Smelting blast deflecting wall for vertical pellet furnace and drying bed - Google Patents
Smelting blast deflecting wall for vertical pellet furnace and drying bed Download PDFInfo
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- CN101509724A CN101509724A CNA2009101319009A CN200910131900A CN101509724A CN 101509724 A CN101509724 A CN 101509724A CN A2009101319009 A CNA2009101319009 A CN A2009101319009A CN 200910131900 A CN200910131900 A CN 200910131900A CN 101509724 A CN101509724 A CN 101509724A
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Abstract
The invention provides an air-guiding wall and a drying bed for a smelting pellet shaft furnace. The girder of the air-guiding wall is an upper-arch and lower-flat structure, with the length more than the internal diameter of the furnace body; the girder body is provided with a girder vent hole which is internally provided with a lining sleeve coated by an anti-sticking layer; and the girder is poured a form by explosion-proof pouring material and is a finished product processed by drying and high-temperature. The air-guiding wall body is built by vertical wedge-shaped firebricks; the upper of the air-guiding wall body is provided with an air-guiding wall vent hole which is internally provided with a lining sleeve; each air-guiding wall vent hole is communicated with and vertical to the corresponding girder vent hole; the air-guiding wall vent hole and the girder vent hole are superposed by layers and perforated from up to bottom so as to become a chimney shape; two sides of the air-guiding wall body and the air-guiding wall girder are respectively supported by supporting columns; the supporting columns are fixedly connected into a whole with the air-guiding wall and the air-guiding wall girder by fasteners respectively; two ends of the air-guiding wall body and the air-guiding wall girder are respectively inserted into the wall bodies at the two sides of the furnace body; and the drying bed is supported by a bearing beam and positioned on the upper part of the furnace body. The air-guiding wall and the drying bed save time, water and electricity and save the installation and maintenance expense of the equipment.
Description
Technical field
The present invention relates in a kind of metallurgy industry to produce the acid pellet shaft furnace, particularly relate to the crossbeam that is used in support air-guiding wall on the agglomerates of sintered pellets machinery shaft furnace and the smelting blast deflecting wall for vertical pellet furnace and the drying bed of used refractory brick of air-guiding wall and pelletizing drying bed.
Background technology
The raw materials used pelletizing of China's relatively large steel plant steelmaking furnace is all used mechanical shaft furnace production at present.Because of it has the output height, quality is good, and can utilize blast furnace to do several big advantages such as fuel, progressively replace outmoded formula sintering processing in recent years from the waste gas that in smelting production, produces.The crossbeam of support air-guiding wall (being referred to as water beams again) in the prior art, be to weld with elbow at one by 2 seamless steel pipes, cooling water is entered through elbow by following pipe and is returned by last pipe, become the mixture of water and steam this moment in the pipe, this is one cooling water cyclic process of crossbeam, three road water circulation sieve together, be welded into high about 1.1 meters crossbeam one side like this.With steel plate both sides are connected into widely 0.78 meter again, and to be separated into the aperture be that nearly positive square nine holes about 0.4 meter just become crossbeam integral body, the body of heater wall two ends of the unsettled cross-arm of crossbeam in shaft furnace.
The air-guiding wall that plays draught effect in shaft furnace has reached the big dust particle of by air-flow being wrapped up in band and the ball ore deposit disintegrating slag of crossbeam because of being subjected to pass through of support effect in its air vent, because of granularity can not be taken out of in air-guiding wall by air-flow than quality is higher greatly, under the double action of own wt and updraft, be suspended in crossbeam and air-guiding wall bottom, but the air vent of crossbeam and air-guiding wall is a rectangle, the bulky grain thing is under action of centrifugal force, retaining in four jiaos of air vents is not easy the air-flow of conrotatory in changeing and rotates, rub with the weld of water pipe and the gusset formula of pacing up and down herein, produce and the metallic conduit identical phenomenon of sand surfing that eliminates rust, until particle by levigate air-flow on thrust just take out of outside the stove gradually during greater than self gravitation.Go round and begin again and to continue to use until damaging, the crossbeam dividing plate is at first washed away disappearance because of no water cooling, other position is also because of by wear down, constantly producing fatigue crack under the stagnation of the circulation of vital energy vibration, under the effect of water vapour pressure, ftracture and leak or modification, general life cycle 6 months or repair to 1 year at any time about, its replacing time can not be synchronous with the wind-guiding wall brick, the wind-guiding wall brick that must dismounting still can use because of the replacing of crossbeam.Its short and seriously influenced production in life-span.
The width of air-guiding wall is consistent with crossbeam, and 4 meters of high less thaies, more than 30 ton of refractory material gross weight are to be built by laying bricks or stones and formed by 300 blocks of identical high alumina matter, frame rib type refractory brick of aperture, pitch-row and crossbeam.One in every layer of every hole becomes nine hole chimney shapes vertically to build by laying bricks or stones on crossbeam, can't moulding because of its area greater than the ordinary press table top, and prior art can only be done with vibrating forming mechanism, with shaking the deficiency that remedies its pressure.And vibrations pressurizations need be in batching moisture and fine powder ratio strengthen, its degree is difficult to control, occurs because of above various reasons makes product that contraction modification, thin and thick differ in sintering procedure, phenomenons such as slabbing or fracture, causes product percent of pass extremely low.Can only guarantee that its product can reach the standard of building by laying bricks or stones with the reduction firing temperature in the prior art, but product and fail to reach bond strength.Therefore causing in use, fine powder is washed away at first, make particles of aggregates exposed and washed away gradually, go round and begin again and form the hole shape, its hole shape has caused resistance for again the rotation of particle in air vent, cause washing away of particle and body of wall to be strengthened with frictional force, wherein the particles of aggregates that refractory brick came off is big because of hardness, washes away with frictional force also just greatlyyer, and vicious circle can not continue to use until damaging.
Green pellets on the drying bed is to carry out reciprocating type cloth when that is to say that the material distributing machine cloth arrives an end by belt conveyor at the drying bed upper top, the raw material at other end top have not had material or material is thin, air-flow hitherward moves under the effect of pressure and a large amount of the discharge under drying bed, cause thermal source to run off, can cause that also green pellets is big because of moisture herein, the heating temperature height bursts apart and to produce disintegrating slag particle influence ventilated, cause difficulty for preheating and roasting, wrapped up in by high-pressure blast during at discharge and bring the vicious circle that air-guiding wall air vent and its hole brick wash away and rub into to salband.The support water beam of drying bed because of span is big, in use, is difficult to bear the pressure of working environment, produces crooked, modification, influences drying effect and downward discharge, and when serious, the air-guiding wall that can cause inclined to one side material to cause tilts and the phenomenon of caving in.
Summary of the invention
Goal of the invention of the present invention will solve exactly smelts shaft furnace because the air-guiding wall crossbeam, air-guiding wall and drying bed short causing in service life yield poorly, the problem that cost is high, a kind of novel air-guiding wall crossbeam and wind-guiding body of wall and drying bed support structure are provided, after the roof beam structure of crossbeam and drying bed support beam are welded by heat resisting steel, again with watering the material feeding moulding by casting, and form through high-temperature firing, air-guiding wall adopts perpendicular wedge type refractory brick arch form to build by laying bricks or stones, install neck bush additional in air-guiding wall crossbeam and the air-guiding wall air vent, the a whole set of water circulation system of existing crossbeam of cancellation and drying bed, save production cost greatly, reduced the smelting blast deflecting wall for vertical pellet furnace and the drying bed of shaft furnace accident rate.
Realize the foregoing invention purpose by the following technical solutions:
A kind of smelting blast deflecting wall for vertical pellet furnace and drying bed, described air-guiding wall supports with crossbeam, and drying bed is positioned at the top supports support of air-guiding wall, is positioned at the shaft furnace body of heater,
A. the beam body that described air-guiding wall supports crossbeam is an arch flat structure down, its length is greater than the body of heater internal diameter, many metal upright posts of this beam body and function support, described beam body is provided with the crossbeam air vent, crossbeam air vent neck bush is housed in this crossbeam air vent, and the outer surface of this crossbeam air vent neck bush scribbles adherent layer, and described air-guiding wall crossbeam is to be close to crossbeam beam body formwork with steel form, the past then explosion-proof material feeding moulding by casting that waters of beam internal casting, the finished product after drying, the high-temperature process;
B. described air-guiding wall body of wall is built by laying bricks or stones with perpendicular wedge shape refractory brick, it is provided with a plurality of air-guiding wall air vents, air-guiding wall air vent neck bush all is housed in the air-guiding wall air vent, pour into a mould with watering material feeding between the two air-guiding wall air vents, each air-guiding wall air vent all communicates with the crossbeam air vent corresponding with it and is vertical, by stacked add up and down to connect be chimney-like, be positioned at the outer surface of the air vent neck bush of air-guiding wall body of wall hypomere, brushing has adherent layer, between two air-guiding wall air vents of every layer of body of wall, metal pull bar is housed, the body of wall both sides are provided with the aperture heating resisting metal clamping plate identical with the metal pull bar specification, heating resisting metal clamping plate and metal pull bar are fastenedly connected, the arch difference part levelling bonnet upper cover plate brick on air-guiding wall top, the material feeding of watering that is cast with triangle on the front arch is pushed up;
C. air-guiding wall body of wall and air-guiding wall crossbeam both sides are supported with support column respectively, and this support column is fastenedly connected with securing member with air-guiding wall, air-guiding wall crossbeam respectively and is one, and insert respectively in the body of wall of body of heater both sides at the two ends of air-guiding wall body of wall and air-guiding wall crossbeam;
D. described drying bed supports with the support beam, and this support beam is a bottom width 23-28 centimetre, the triangle beam bracket of high 45-55 centimetre.
Compared with prior art, remarkable advantage of the present invention is
1, cancels water circulation and water softening system, saved the installation and the maintenance cost of man-hour, water, electricity and equipment.Reduced or remitted the heat energy loss, made the high-pressure blast increase in temperature that is transported to the drying bed position by air-guiding wall create condition for the shaft furnace high yield.
2, anti-ly wash away, easily repair
Because of the full arch form that is is made and built by laying bricks or stones to air-guiding wall crossbeam of the present invention and air-guiding wall, under the variation of its heavy burning line, splashing of walling unit expand and its contraction of building mud seam by laying bricks or stones can be cancelled out each other, can not form pressure mutually between beam and the wall and between body of wall layer and the layer, the beam body can modification yet; Lining in the middle of beam body and the body of wall increases substantially its wear-resisting anti-scouring force, and can improve several times its service life; Because of brushing adherent layer, lining in the air vent and beam body and body of wall have played the interlayer effect, be beneficial in air-guiding wall crossbeam or air-guiding wall body of wall damaged location sectional repair or replacing, beam body and body of wall can use for a long time, and have reduced because of integral body and built the economic loss and the man-hour of causing by laying bricks or stones.Neck bush of the present invention is made of carborundum and other hard material, crossbeam and air-guiding wall bottom can be to being wrapped up in the bulky grain pelletizing disintegrating slag of taking out of by air-flow in the course of the work, rapidly levigate and wrapped up in by ascending air and to take out of outside the air-guiding wall in rotation, reduce because of its in rotation of this section and the resistance and the draft amount of pacing up and down and causing to ascending air.In every layer of every hole with the heating resisting metal pull bar, the whole rivet clasps of all refractory materials of whole air-guiding wall are integral as rivet, support and top drying bed support beam clip with the triangle batter post, make air-guiding wall and body of heater both sides up and down and two ends all link into an integrated entity, strengthened its stability.
3, can enlarge the kiln volume
Air-guiding wall and crossbeam beam body are suitably extended, under the situation that operating personnel and equipment are not increasing, increase pelletizing output, pelletizing ton consumption fuel ratio is reduced, make the maximization of mechanical sintering shaft furnace step major step forward.
4, environmental protection, turn waste into wealth
The discarded high alumina matter porcelain rod bottle and the useless mud that utilize high tension insulator manufacturer to be taken as garbage disposal since the dawn of human civilization are the production primary raw material.Because of its Main Ingredients and Appearance is the good high-quality bonding clay of high-alumina fly and plasticity, grind the pulping application of vacuum through ballstone and become mud and high-temperature firing, its product belongs to the high alumina homogenization material to be made, general aluminium content is about 50%, refractoriness is about 1730 degree, its useless porcelain rod bottle apparent porosity is 0.03%, hardness can be cut and be cut a piece of glass, be acidproof, alkaline-resisting, wear-resisting first-class raw material, it is ground into particle, as aggregate, water material feeding or be processed into product in conjunction with making with any bond or clay with mechanical pressing, all have been widely used, do refractory brick in conjunction with fine powder with its porcelain mud, can impel the porcelain combination, increase brick strength, the present invention is through with recent decades with the history of high tension insulator as garbage disposal.And useless domestic ceramics and useless architectural pottery belong to its hardness height of faintly acid, its useless mud potassium sodium content is higher, easy-sintering, it is strong that available its produced the anticorrosive power of using on semi-silica brick and Industrial Stoves flue, the chimney with acidproof brick of liner tile, low-grade abrasive brick as raw material, and its result of use is better than general schamotte brick.Its utilization both for country has saved resource, has been reduced pollution for society again.
Description of drawings
Fig. 1 is the front section view of body of heater of the present invention.
Fig. 2 is the structural representation of air-guiding wall crossbeam of the present invention.
Fig. 3 is the schematic top plan view of Fig. 2.
Fig. 4 is the perspective view of air-guiding wall of the present invention and air-guiding wall crossbeam.
Fig. 5 is the drying bed floor map.
Fig. 6 is an air-guiding wall arch angle brick schematic diagram of the present invention.
Fig. 7 is the perpendicular wedge shape wall brick schematic diagram of air-guiding wall of the present invention.
Among the figure, body of heater both sides body of wall 1, air-guiding wall front arch 2, crossbeam, air-guiding wall air vent and lining air outlet 3, drying bed support beam 4, air-guiding wall air vent neck bush 5, air-guiding wall body of wall 6, heating resisting metal pull bar 7, air-guiding wall support column 8, heating resisting metal clamping plate 9, crossbeam air vent neck bush 10, crossbeam pouring layer 11, device for carrying a tripot 12 under the crossbeam, and device for carrying a tripot 13 on the crossbeam heating resisting metal, and crossbeam snaps in wall part 14, crossbeam air vent 15, air-guiding wall arch angle brick facade 16, wind-guiding wall brick cast material 17 waters material feeding 18 between the air vent, air-guiding wall arch angle brick side 19, crossbeam beam-ends 20, crossbeam heat resisting steel column 21, air-guiding wall crossbeam 22, flat brick 23 on the air-guiding wall, 24, drying bed triangle purlin frame 25, green pellets blanking section 26, drying bed grid section 27, air-guiding wall erects arch brick side 28.
The specific embodiment
The present invention is described further below in conjunction with accompanying drawing.
See Fig. 1, Fig. 4, air-guiding wall body of wall 6 layerings of present embodiment are built by laying bricks or stones on air-guiding wall crossbeam 22, in air-guiding wall body of wall 6 and air-guiding wall crossbeam 22 both sides, support with the chevron shaped support column 8 of triangle respectively, are positioned at body of heater.This support column 8 connects as one with air-guiding wall body of wall 6, air-guiding wall crossbeam 22 usefulness bolted respectively.Insert respectively in the body of wall 1 of body of heater both sides at the two ends of support column 8 and air-guiding wall crossbeam 22.The upper end of air-guiding wall 6 is provided with air-guiding wall crossbeam and air-guiding wall air outlet 3, air outlet 3 loam cake front arch 2.Drying bed is positioned at the top of body of heater with drying bed support beam 4 supports.
See Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the beam body skeleton of air-guiding wall crossbeam 22 is to be welded with the high steel of heat resisting temperature, is the flat structure that arches up down, is supporting with many heat resisting steel columns 21 between device for carrying a tripot 13 and the following device for carrying a tripot 12 on the big beam framework.The length of beam body skeleton is slightly longer than the internal diameter of shaft furnace body of heater, and build respectively in the body of heater both sides body of wall 1 at its two ends, and 14 among Fig. 2 is exactly that crossbeam snaps in wall part.On the beam body of air-guiding wall crossbeam 22, build a plurality of crossbeam air vents 15 by laying bricks or stones with refractory brick, the width of the beam body of air-guiding wall crossbeam 22 and the aperture of crossbeam air vent 15 design and produce by drawing, it is vertically by the design proportion arch camber, its arch camber ratio is raised on this basis by customer requirements or is reduced, put into crossbeam air vent neck bush 10 or the plate made in advance in the crossbeam air vent 15, the material of crossbeam air vent neck bush 10 or plate preferably selects for use heating resisting metal or carborundum and other fire-resistant or do not belong to the hard wear-resistant material of refractory material scope.Outer surface at crossbeam air vent neck bush 10 or plate, brush adherent layer, the preparation method of air-guiding wall crossbeam 22 is: be adjacent to air-guiding wall crossbeam 22 beam body skeleton formworks with steel form, water material feeding with its moulding by casting toward the beam internal casting is explosion-proof then, form crossbeam pouring layer 11 on its surface, form big beam sides pouring layer 11 in the side of air-guiding wall crossbeam 22,22 oven dry of air-guiding wall crossbeam are burnt till with high temperature then or low-temperature bake (below 800 ℃) is made the finished product crossbeam with conventional method.Also the air vent below the air-guiding wall crossbeam 22 beam bodies can be made splayed, its air intake better effects if.
The preparation method of watering material feeding that the present invention uses is: the useless electroceramics rod of the high alumina of the good thermal shock stability that impurity is few and high alumina matter pulverized particles is mixed and made into compound; add heat-resistant steel fiber and phosphate or other high strength at high temperature bond in the compound and make the explosion-proof material feeding of watering; because of phosphate or other high strength at high temperature bond in conjunction with make explosion-proof water material feeding burn till model all enclose very wide, so the firing temperature of air-guiding wall crossbeam 22 is decided according to watering the raw materials used material of material feeding.
See Fig. 4, on air-guiding wall crossbeam 22, build multilayer air-guiding wall 6 by laying bricks or stones with perpendicular wedge shape refractory brick, for the height that increases air-guiding wall crossbeam 22 beam body two ends also can be as Fig. 4 on the basis that does not exceed air-guiding wall crossbeam 22 beam body total heights, simultaneously with the arch angle brick 16 and the wall segment that water material feeding cast ground floor air-guiding wall.
The refractory brick of air-guiding wall 6 both sides and walls is high-alumina refractory brick, this high-alumina refractory brick is to make in conjunction with fine powder of useless alumina porcelain mud tonerde, an alumine or the useless high alumina matter porcelain rod bottle particle below 3 millimeters that is ground into good thermal shock stability are aggregate, to mix perpendicular wedge type refractory brick (in the part brick, reserving the perforation of heating resisting metal pull bar during making) and the arch angle brick that adds high-strength bond and be made into aggregate in conjunction with fine powder in beam body arch camber ratio, the structure of perpendicular wedge shape refractory brick is seen Fig. 7, and its facade 28 is that perpendicular wedge structure, side 24 are rectangular configuration.Structure such as Fig. 6 of arch angle brick, its facade 16, side 19 are triangular structure.Perpendicular wedge shape refractory brick also can be made into the perpendicular wedge type of band brick tongue and brick ditch according to designing requirement at the brick bricklaying surface.Build the arch form identical with high-alumina refractory brick by laying bricks or stones in air-guiding wall crossbeam 22 both sides with its beam body.See Fig. 1 and Fig. 4, build a plurality of air-guiding wall air vents by laying bricks or stones with refractory brick on the air-guiding wall body of wall, the air-guiding wall air vent communicates with air-guiding wall crossbeam air vent 15 and the vertical nine hole chimney-like of enumerating into, air-guiding wall air vent neck bush 5 is housed in the air-guiding wall air vent, each air-guiding wall air vent all communicates with the crossbeam air vent 15 corresponding with it and is vertical, add up and down by stacked that to connect be nine hole chimney-like, be positioned at the outer surface of the air vent neck bush of air-guiding wall body of wall 6 hypomeres, brushing has adherent layer, between two air-guiding wall air vents of every layer of body of wall, pack into the metal pull bar 7 of a heat-resisting screw of double headed roller, the body of wall both sides penetrate the aperture heating resisting metal clamping plate 9 identical with the metal pull bar specification respectively, and heating resisting metal clamping plate 9 usefulness screws and metal pull bar 7 is fastening and weld.Cast two air vents water material feeding 18 to make itself and air-guiding wall body of wall 6 are one between two air-guiding wall air vents.The arch difference part on air-guiding wall 6 tops is built levelling by laying bricks or stones and is reserved the air-guiding wall crossbeam with flat brick 23 and phosphate mud on the air-guiding wall, air outlet 3 on air-guiding wall air vent and the neck bush, cover then with phosphate or with other high strength at high temperature bond in conjunction with the air-guiding wall front arch of making 2, see Fig. 1, cast cast material on air-guiding wall front arch 2, its cast is become triangle, it is top little from suitably putting with drying bed support beam 4 distance between centers, force air quantity under the dual resistance of triangular beam purlin, progressively to weaken from bottom to top, guaranteed that the drying bed bottom thicker bed of material of pelletizing also can obtain enough air quantity.The top bed of material is thinner, and pelletizing moisture is big, because of air quantity weakens, too much bursting apart of pelletizing avoided in the temperature attenuating.Therefore it is lower to locate temperature, and the material feeding of watering used on the air-guiding wall front arch 2 is with the granule after daily useless porcelain, the useless porcelain of building and waste ceramic saggar, the pulverizing of waste and old refractory brick, adds aluminate cement or the waterglass bond is mixed and made into.
After air-guiding wall 6 is built by laying bricks or stones and finished, water material feeding 17, above crossbeam beam-ends 20, form pouring layer with the air-guiding wall brick wall.Air-guiding wall 6 is divided into three sections by its length, with two drying bed beam bars that bake, an end presses air-guiding wall front arch 2 respectively in the both sides of every section air-guiding wall 6, and heart line is the triangular shape welding therein, its other end is pressed the gradient of the reasonable blanking of drying bed, inserts in the body of wall of body of heater both sides and blocks in fact.
For increasing output and enlarging furnace volume, can be the body of heater proper extension, air-guiding wall 6 and air-guiding wall crossbeam 22 also change thereupon, be the bearing capacity and stability that increases air-guiding wall 6 and air-guiding wall crossbeam 22, respectively support several with the drying bed support beam purlin material triangular support post 8 identical in air-guiding wall 6 and crossbeam beam body 22 both sides with production method, triangular support post 8 one ends support the air-guiding wall body of wall, the other end is the herringbone oblique angle, build by laying bricks or stones in the body of wall 1 of body of heater both sides, but its wedge angle must make progress, in order to avoid produce the resistance material phenomenon.Support column 8 connects as one with air-guiding wall 6, air-guiding wall crossbeam 22 usefulness bolted respectively.
See Fig. 5, the drying bed that is positioned at top, air-guiding wall top adopts the support beam 4 of backing house beam purlin formula structure to support, and the welding of support beam 4 usefulness heating resisting metal steel is 25 centimeters of bottom width, high 50 centimeters triangle roof beam structure is with 15 centimeters, high 30 centimeters several triangle purlin framves 25 formworks respectively of going to the bottom.The beam bar of drying bed and purlin are made of explosion-proof mode of watering the material feeding moulding by casting, and 26 is green pellets discharging areas among the figure.
Drying bed purlin two ends are put in the middle of the triangle roof beam structure of support beam 4, and exceeded 5 centimeters in triangle roof beam structure, distance press the length of drying bed comb 27 and is decided between purlin and the purlin.Bed combed 27 to be lain between the two purlin triangles, and flat height and shop equal with the purlin point sternly it on.
Bond of the present invention is phosphate, phosphoric acid or resinae bond.Adherent layer is a bitumen layer.
Operation principle of the present invention:
The air vent lining is two bodies of interlayer with the air-guiding wall of building by laying bricks or stones with perpendicular wedge shape refractory brick, respectively bears operating temperature separately.Therefore, on same brick body, can not produce the big temperature difference and fracture, air-guiding wall be supported and fastening the firm and stable of air-guiding wall of having strengthened with triangular form support column and heating resisting metal pull bar.
Air-guiding wall crossbeam 22 of the present invention is to build by laying bricks or stones with perpendicular wedge shape refractory brick arch form because of air-guiding wall above it 6, therefore the pressure of the air-guiding wall that bears is very not big, but its lower plane is exactly the last plane of ripe ball salband, cooling air enters in the air vent from here, thus beam body lower plane and beam body air vent bear by high-pressure blast wrap up in band bulky grain ball slag, and powder to wash away friction also maximum.The heating resisting metal skeleton of its air-guiding wall crossbeam makes at its beam body surface layer; not only played the effect that strengthens crossbeam load-bearing pressure; wear-resisting characteristics during its high temperature have played protective effect to beam body lower plane and ventilation aperture; and be worn at it and be convenient to when serious repair, its beam body and wind-guiding body of wall are used for a long time with welding manner.
Drying bed plays desiccation to green-ball, the size of the thermal current that gives out in its quality and quantity and the air-guiding wall and evenly relevant, in order better and uniformly to utilize the heat energy under the drying bed, the cancellation water circulation system that the present invention makes, use the triangular beam purlin roof truss formula structure of refractory material instead, its operation principle is as follows:
Because of pressing the pouring layer on the air-guiding wall cover plate, can be confined to the air-flow between two beams this position can not move mutually with the triangular form purlin, and its pressure of thermal current that sprays from the air-guiding wall mouth makes progress, and air-flow flows to the top at the bottom of drying bed.The grid section of drying bed is that card is placed between triangular form two purlins, and more up its flowing space is more little, forces air-flow to be held back by the triangle purlin under drying bed and discharge in a large number herein.Upwards stride blue formula and move repeatedly being held back by several drying bed triangle purlin to distribute and form by that analogy, pressure and flow also weaken gradually, and it is big to have met lower fabric bed thickness, the little heat of moisture and pressure requirement.The optimum operation principle that the top bed of material is thin, moisture is big, heat pressure requirement is little.
More than disclosed be specific embodiments of the invention only, but the present invention is not limited thereto, any those skilled in the art can think variation, all should drop within protection scope of the present invention.
Claims (3)
1, a kind of smelting blast deflecting wall for vertical pellet furnace and drying bed, described air-guiding wall supports with the air-guiding wall crossbeam, and drying bed is positioned at the top supports support of air-guiding wall, is positioned at the shaft furnace body of heater, it is characterized in that,
The beam body of a. described air-guiding wall crossbeam is an arch flat structure down, its length is greater than the body of heater internal diameter, many metal upright posts of this beam body and function support, described beam body is provided with the crossbeam air vent, crossbeam air vent neck bush is housed in this crossbeam air vent, and the outer surface of this crossbeam air vent neck bush scribbles adherent layer, and described air-guiding wall crossbeam is to be close to crossbeam beam body formwork with steel form, the past then explosion-proof material feeding moulding by casting that waters of beam internal casting, the finished product after drying, the high-temperature process;
B. described air-guiding wall body of wall is built by laying bricks or stones with perpendicular wedge shape refractory brick, it is provided with a plurality of air-guiding wall air vents, air-guiding wall air vent neck bush all is housed in the air-guiding wall air vent, pour into a mould with watering material feeding between the two air-guiding wall air vents, each air-guiding wall air vent all communicates with the crossbeam air vent corresponding with it and is vertical, by stacked add up and down to connect be chimney-like, be positioned at the outer surface of the air vent neck bush of air-guiding wall body of wall hypomere, brushing has adherent layer, between two air-guiding wall air vents of every layer of body of wall, metal pull bar is housed, the body of wall both sides are provided with the aperture heating resisting metal clamping plate identical with the metal pull bar specification, heating resisting metal clamping plate and metal pull bar are fastenedly connected, the arch difference part levelling bonnet upper cover plate brick on air-guiding wall top, the material feeding of watering that is cast with triangle on the front arch is pushed up;
C. air-guiding wall body of wall and air-guiding wall crossbeam both sides are supported with support column respectively, and this support column is fastenedly connected with securing member with air-guiding wall, air-guiding wall crossbeam respectively and is one, and insert respectively in the body of wall of body of heater both sides at the two ends of air-guiding wall body of wall and air-guiding wall crossbeam;
D. described drying bed supports with the support beam, and this support beam is a bottom width 23-28 centimetre, the triangle beam bracket of high 45-55 centimetre.
2, smelting blast deflecting wall for vertical pellet furnace according to claim 1 and drying bed, it is characterized in that, the used refractory brick of described air-guiding wall is to make in conjunction with fine powder of the mixing fine powders of useless alumina porcelain mud or clay and high aluminium material, with the alumine of good thermal shock stability or a useless high alumina matter porcelain rod bottle particle is aggregate, this in conjunction with fine powder with add the perpendicular wedge type refractory brick that bond is made according to beam body arch camber ratio after aggregate mixes.
3, smelting blast deflecting wall for vertical pellet furnace according to claim 1 and drying bed is characterized in that, described to water material feeding be to add the mixture that bond is made after mixing with the useless electroceramics rod particle of high alumina or high alumina matter or both.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101319009A CN101509724B (en) | 2009-04-10 | 2009-04-10 | Smelting blast deflecting wall for vertical pellet furnace and drying bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101319009A CN101509724B (en) | 2009-04-10 | 2009-04-10 | Smelting blast deflecting wall for vertical pellet furnace and drying bed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101509724A true CN101509724A (en) | 2009-08-19 |
| CN101509724B CN101509724B (en) | 2010-08-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101319009A Active CN101509724B (en) | 2009-04-10 | 2009-04-10 | Smelting blast deflecting wall for vertical pellet furnace and drying bed |
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| CN (1) | CN101509724B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738082B (en) * | 2010-01-19 | 2011-05-11 | 唐山市盈心耐火材料有限公司 | Smelting palletizing shaft furnace air-guiding wall and building method thereof |
| CN103529044A (en) * | 2013-10-14 | 2014-01-22 | 苏州汇科机电设备有限公司 | Crack inspection device for sagger |
| CN107976061A (en) * | 2017-12-28 | 2018-05-01 | 陕西能源职业技术学院 | A kind of vertical ceramic firing heating unit of continous way and heating means |
| CN110657663A (en) * | 2018-06-29 | 2020-01-07 | 山西通才工贸有限公司 | Construction method of air guide wall of shaft furnace |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1600879A (en) * | 2004-10-27 | 2005-03-30 | 周传禄 | Water free beam of high furnace baking bed for sintering ball body of powder of iron ore |
| CN2876659Y (en) * | 2006-07-31 | 2007-03-07 | 巩义市建业耐材有限公司 | Arch or fold line arch brick summer beam for air ducting wall and air guide wall of pellet shaft furnace |
| CN200979365Y (en) * | 2006-11-27 | 2007-11-21 | 唐山大方铸造有限公司 | A wind guide wall of a shaft furnace |
| CN201173676Y (en) * | 2008-02-01 | 2008-12-31 | 唐山市磁石矿冶科贸有限公司 | Long service life energy-saving -type acid pellet calcining high furnace |
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2009
- 2009-04-10 CN CN2009101319009A patent/CN101509724B/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101738082B (en) * | 2010-01-19 | 2011-05-11 | 唐山市盈心耐火材料有限公司 | Smelting palletizing shaft furnace air-guiding wall and building method thereof |
| CN103529044A (en) * | 2013-10-14 | 2014-01-22 | 苏州汇科机电设备有限公司 | Crack inspection device for sagger |
| CN107976061A (en) * | 2017-12-28 | 2018-05-01 | 陕西能源职业技术学院 | A kind of vertical ceramic firing heating unit of continous way and heating means |
| CN110657663A (en) * | 2018-06-29 | 2020-01-07 | 山西通才工贸有限公司 | Construction method of air guide wall of shaft furnace |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101509724B (en) | 2010-08-25 |
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