CN101738082A - Smelting palletizing shaft furnace air-guiding wall and building method thereof - Google Patents
Smelting palletizing shaft furnace air-guiding wall and building method thereof Download PDFInfo
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Abstract
The invention relates to a smelting palletizing shaft furnace air-guiding wall and a building method thereof, belonging to the field of smelting palletizing shaft furnaces. The air-guiding wall body is an arch-up flat-down or arch structure; firebricks for building the air-guiding wall body comprise wedge-shaped, T-shaped, L-shaped and reverse I-shaped firebricks as well as lining bricks provided with vent holes in the middle part; the air-guiding wall body is paved and built according to the number of layers and the position; the bottom of the air-guiding wall body is supported by a heat-resistant metal cork base and a support pillar under the cork base; cover plate bricks cover the upper part of the air-guiding wall; and triangular castables are cast on the cover plate brick. In the invention, firebricks with various types are paved and built according to the number of layers and the position by a reasonable method; and because of small clearance, the sealing performance of the air-guiding wall body is superior to similar air-guiding walls; besides, the novel brick is small in volume, light in weight and convenient to carry and operate. The support device is arranged at the lower part of the air-guiding wall, thereby ensuring favorable heat-resistant performance, easy production and installation and large support force.
Description
Technical field
The utility model relates to produces the acid pellet shaft furnace in a kind of metallurgy industry, particularly relate to the smelting blast deflecting wall for vertical pellet furnace and the building method thereof that are used on the agglomerates of sintered pellets machinery shaft furnace.
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, like this three road water circulations are piled up together, be welded into high about 1.1 meters crossbeam one side.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.
In shaft furnace, play the big dust particle of being wrapped up in band by air-flow and the ball ore deposit disintegrating slag that pass through in the air-guiding wall air vent of draught effect, 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, because of 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 identical phenomenon of metallic conduit rust cleaning sand surfing, until particle by levigate, when thrust on the air-flow is just taken out of outside the stove during greater than self gravitation gradually.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, not only the life-span is short but also seriously influence production efficiency.
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 strengthen moisture and fine powder ratio in batching, and 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 content 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 applicant has invented a kind of " smelting blast deflecting wall for vertical pellet furnace and drying bed " application number for this reason: 200910169643.8, substantially above-mentioned the deficiencies in the prior art have been remedied, but because its air-guiding wall still is provided with crossbeam, the bearing device that does not have collet and support column to form, and build the wall body brick of air-guiding wall by laying bricks or stones, front arch uses the high alumina matter of prior art basically, frame rib type refractory brick is built by laying bricks or stones, this refractory brick volume is big, Heavy Weight, carrying labour intensity is big, the air-guiding wall that uses the single refractory brick of this structure to build by laying bricks or stones, can not satisfy fully and produce needs, and replacing refractory brick extremely bothers.
Summary of the invention
Purpose of the present invention be exactly to solve smelt shaft furnace since air-guiding wall crossbeam, air-guiding wall service life short cause yield poorly, problem that cost is high, and high alumina matter, frame rib type refractory brick carrying trouble, not easily changeable deficiency, a kind of usefulness wind-guiding body of wall that novel fragment of brick is built by laying bricks or stones and support structure are provided, the existing crossbeam of smelting shaft furnace of cancellation, save production cost, reduce the smelting blast deflecting wall for vertical pellet furnace and the building method thereof of shaft furnace accident rate.
Realize above-mentioned purpose by the following technical solutions:
A kind of smelting blast deflecting wall for vertical pellet furnace, described air-guiding wall body of wall is built into flat-shaped or arcuation structure under the arch by laying bricks or stones with several layers refractory brick, it is provided with a plurality of air-guiding wall air vents, the air vent neck bush all is housed in the air-guiding wall air vent, by stacked add up and down to connect be chimney-like, the outer surface of air vent neck bush, brushing has antiseized clearance layer, between every ring arch is built two air vents in the air-guiding wall body of wall by laying bricks or stones, metal pull bar is housed, on the perpendicular arch brick in the air-guiding wall body of wall both sides relative the pull bar perforation heating resisting metal clamping plate identical with the metal pull bar specification with the aperture are set with it, heating resisting metal clamping plate and metal pull bar are fastenedly connected, front arch is stamped on air-guiding wall top, the material feeding of watering that is cast with triangle on the front arch is pushed up, the bottom of described wind-guiding body of wall is provided with bearing device, the composition of this bearing device comprises heating resisting metal collet and collet lower support post, described heating resisting metal collet is provided with collet air vent perpendicular with the air-guiding wall air vent and that connect, the both sides of heating resisting metal collet are supported with collet lower support post respectively, insert in the clamp cover on the top of this collet lower support post, the bottom of clamp cover is connected with connector with the heating resisting metal collet, the top of clamp cover is connected with the metal pull bar of wind-guiding body of wall, and the other end of collet lower support post inserts in body of heater and is one with it within the walls.
A kind of building method of smelting blast deflecting wall for vertical pellet furnace, the masonry construction of wind-guiding body of wall is divided into odd-level, even level, arch angle and arcuate part, it is characterized in that, it is that brick the building of lining of air vent forms that described air-guiding wall body and function is erected wedge shape, T font, L type, yi word pattern brick, straight brick and centre, and its building method is:
A. build by laying bricks or stones with perpendicular wedge shape refractory brick at the arch position of air-guiding wall, and perpendicular wedge shape refractory brick is wrong stool arch flat or arch masonry construction down, and its two ends are provided with the arch angle, and lip block is arranged under it;
B. the odd-level of air-guiding wall is built by laying bricks or stones with yi word pattern refractory brick, straight brick and air vent neck bush, its method is: build the vertical row air vent neck bush of piling up with the same position of the air vent neck bush that is positioned at its underpart in position by laying bricks or stones in arch, between two air vent neck bush, build with yi word pattern is brick then with straight brick, both sides, be combined into the rectangular configuration of several band air vents, when intersection is built by laying bricks or stones to even level upper layer position, with the horizontal, vertical seam gland that forms between the even level T font brick and with two ends L shaped brick;
C. the even level of air-guiding wall is built by laying bricks or stones with T font refractory brick, its method is: vertical pile of row air vent neck bush on the odd-level air vent neck bush of collet air vent and the common location of air-guiding wall arch brick air vent, between two air vent neck bush, respectively place a T font refractory brick then with both sides, the two ends of this even level L shaped brick end socket, the centre of described T font brick is crossover sites anyhow, to be positioned at the perps gland of linking of two in-line bricks of odd-level air vent neck bush both sides, and will and be positioned at the linking transverse joint gland of the in-line brick of its both sides at the straight brick between the two air vent neck bush.
Compared with prior art, remarkable advantage of the present invention is
Air-guiding wall body of wall brick of the present invention is perpendicular wedge shape, T font, L type refractory brick, and the yi word pattern soap brick is the lining brick of air vent with the centre, build into the wind-guiding body of wall by the number of plies by laying bricks or stones with the position laying, laying structure is reasonable, and the slit causes the airtight performance of wind-guiding body of wall to be better than similar air-guiding wall for a short time.And the little carrying operation of being convenient in light weight of novel brick body volume.Bottom at air-guiding wall is provided with bearing device, and play the collet or the joist of support effect and make, and support with collet lower support post of heating resisting metal, not only good, the easy fabrication and installation of heat resistance, and also support strength is big.Air-guiding wall is built by laying bricks or stones and is arch form, 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, between collet or joist and the air-guiding wall and the layer of wind-guiding body of wall with layer between can not form pressure mutually, collet and joist be modification not.Improved the service life of air-guiding wall.Actual according to producing, air-guiding wall and collet or joist suitably extend, and under the situation that operating personnel and equipment are not increasing, increase ball mineral products amount, and ball ore deposit ton consumption fuel ratio is reduced, and make the maximization of mechanical palletizing shaft furnace step major step forward.
Description of drawings
Fig. 1 is the front section view of the utility model body of heater.
Fig. 2 is the utility model side-looking structural representation.
Fig. 3 is the utility model collet or joist front view.
Fig. 4 is the vertical view of Fig. 3.
Fig. 5 is the front view of the utility model collet support column.
Fig. 6 is the front view at the utility model arch angle.
Fig. 7 is the utility model odd-level structural representation.
Fig. 8 is the utility model even level structural representation.
Fig. 9 is a T shaped brick schematic diagram.
Figure 10 is a L shaped brick schematic diagram.
Figure 11 is a yi word pattern brick schematic diagram.
Figure 12 is perpendicular arch brick schematic diagram.
Figure 13 is an air vent neck bush structural representation.
Figure 14 is the side view of Figure 13.
Figure 15 is the vertical view of Figure 13.
Among the figure, ventilating opening neck bush 1, heating resisting metal collet 2, collet air vent 3, air-guiding wall air vent 4, perpendicular arch brick 5, collet lower furnace body headwall brick 6, body of heater headwall external reinforcement post 7, the outer hydraulic pressure top of collet stove Pressure gauge 8, collet pull bar 9, arch angle 10, body of heater outer hydraulic pressure top and Pressure gauge 11, the outer push rod 12 of water bridge angle wall, material feeding 13 is watered in the perpendicular arch brick outside, top body of heater headwall brick 14, T shaped brick 15, yi word pattern brick 16, air outlet upper cover plate brick 17, support brick 18, air vent air outlet 19, water material feeding 20, the hollow interior pad brick 21 of collet under the arch angle, air-guiding wall both sides body brick 22, oven dry bed support beam 23, air-guiding wall upper support post 24, heating resisting metal pull bar 25, metal ferrule 26, collet lower support post 27, L shaped brick 28, transverse joint 29, straight brick 30, perps 31.
The specific embodiment
Below in conjunction with accompanying drawing invention is described further.
Present embodiment is a kind of smelting blast deflecting wall for vertical pellet furnace, see Fig. 1, described air-guiding wall body of wall with the perpendicular arch brick 5 wrong stools of several layers semi-circular or arch form build into flat-shaped or arcuation under the arch by laying bricks or stones, two ends are provided with the water bridge angle that arch angle 10 or heating resisting metal are made, and it is built by laying bricks or stones above the cushion block 21 in pad brick hole, collet two ends.And begin certainly to build by laying bricks or stones on the heating resisting metal collet 2 of air-guiding wall bearing device by wrong the putting in order of stool of arch camber by making the perpendicular arch brick 5 of first ring different in size in advance, be flat-shaped under the arch. hereinRectangle, domes or the arch that heating resisting metal collet 2 is brought the air port in the middle of being into be the heating resisting metal joist of flat shape down, and its two ends are provided with arch pad brick hole, angle and collet stove outside link, hydraulic pressure top Pressure gauge 8.
Air-guiding wall is provided with a plurality of air-guiding wall air vents 4, and air-guiding wall air vent neck bush 1 all is housed in the air-guiding wall air vent 4,1 page of lining brick of being called the band air vent of air vent neck bush.By stacked add up and down to connect be chimney-like, the outer surface of air vent neck bush 1, brushing has antiseized clearance layer so that it is changed.Between every ring arch is built two air vents in the air-guiding wall body of wall by laying bricks or stones, metal pull bar 25 is housed, air-guiding wall body of wall both sides are provided with the aperture heating resisting metal clamping plate identical with metal pull bar 25 specifications, heating resisting metal clamping plate and metal pull bar 25 are fastenedly connected, between the two air vent neck bush 1 with phosphate or other high-strength explosion-proof material feeding 20 fillings of watering, front arch 17 is stamped on air-guiding wall top, and front arch 17 is the refractory brick of square type or wild goose wing shape structure.The material feeding of watering that is cast with triangle on the front arch 17 is pushed up.In smelting palletizing shaft furnace, the top of air-guiding wall is lived 24 with the air-guiding wall upper support and is supported.The upper end of air-guiding wall is provided with the air vent air outlet 19 that is used for air-guiding wall and heating resisting metal collet (or joist) 2, and air vent air outlet 19 loam cake air outlet front arch 17, air outlet front arch 17 underlays support the trend of brick 18 with support front arch and restriction wind.
See Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the oven dry bed is positioned at the top of body of heater with drying bed support beam 23 supports.The air-guiding wall heating resisting metal collet 2 usefulness metal materials that are positioned at the air-guiding wall bottom are made, and heating resisting metal collet 2 also can be the heating resisting metal joist of arch.The two ends of heating resisting metal collet or joist 2 are provided with outer hydraulic pressure top Pressure gauge 8 of collet stove and pull bar 9.But for ease of its collet of fabrication and installation or joist both integral production, but also split production then connects in various manners.The structure of heating resisting metal collet 2 such as Fig. 3 and Fig. 4, some collet air vents 3 are set on the beam body of air-guiding wall collet or joist 2, collet air vent 3 also is the air inlet of air-guiding wall air vent, the vertical of heating resisting metal collet 2 is rectangular shape or arch camber in proportion, its arch camber ratio is raised on this basis by customer requirements or is reduced (but can not surpass semi-circumference), also the collet air vent 3 below air-guiding wall heating resisting metal collet or the joist 2 can be made splayed, its air intake better effects if.
Because air-guiding wall is flat shape under the arch, so the collet air vent 3 of the Liang Tishang of heating resisting metal collet (or joist) 2 and the 4 corresponding vertical and perforations of air-guiding wall body of wall air vent, the both sides of heating resisting metal collet (or joist) 2 use the some rectangular collet lower support posts 27 of (top is that the triangle bottom is a rectangle) pentagon as shown in Figure 5 to support respectively, are positioned at body of heater.Collet lower support post 27 both upper ends thereof are put into respectively in the middle of the prefabricated heating resisting metal clamp cover 26, the bottom of clamp cover 26 is connected with air-guiding wall heating resisting metal collet 2 usefulness bolts and welds, the top of clamp cover 26 is connected with the heating resisting metal pull bar 25 of wind-guiding body of wall and is fastening, make air-guiding wall from the central part wall, holder, post becomes one, the other end of collet lower support post 27 is the both sides that 50% jiao gradient inserts in air-guiding wall both sides body brick 22 again, 27 pairs of air-guiding walls of collet lower support post have played load-bearing, stabilization, the pressure of wind-guiding body of wall is transferred to body of heater wall both sides by body of heater wall 26 two end portions, and the whole span of air-guiding wall has also shortened half thus.In addition, be provided with collet pull bar 9 on end heating resisting metal collet (or joist) 2, the two ends of collet pull bar 9 are fixed with nut.
The building method of air-guiding wall is seen Fig. 1～Figure 15:
The masonry construction of wind-guiding body of wall is divided into odd-level, even level, arch angle and arcuate part, and it is that the neck bush of air vent is built by laying bricks or stones and formed that the air-guiding wall body and function is erected wedge shape, T font, L type, yi word pattern refractory brick and centre, and its building method is:
The arcuate part of air-guiding wall is built by laying bricks or stones with perpendicular wedge shape refractory brick, and perpendicular wedge shape refractory brick is wrong stool arch flat or arch masonry construction down, and its two ends are provided with the arch angle.The concrete grammar step is:
(1) building method of air-guiding wall arcuate part is seen Fig. 1, the method of building the arch position with perpendicular arch brick 5 by laying bricks or stones is: in each of heating resisting metal collet (or joist) 2 above the collet air vent 3, vertical several air vent neck bush 1 of placing, make its up/down perforation become chimney-like, each places arch angle 10 at the two ends of collet or joist 2, then the prefabricated perpendicular arch brick 5 of first ring different in size is built by laying bricks or stones to the middle part by institute's chronological order successively by 10 places, two end arch angles, make it to become the shape of following concordant top wrong stool arch camber such as Fig. 1.The perpendicular arch brick of every both sides relative with two air vent neck bush, 1 intermediate gaps position, all to reserve the circular hole that can penetrate heating resisting metal pull bar 25 from both sides, when the perpendicular arch brick 5 of each ring is built the metal pull bar 25 that all will put a band thread in two air vent neck bush, 1 intermediate gaps that finishes by laying bricks or stones, the two ends of metal pull bar 25 pass from the circular hole of the perpendicular arch brick 5 that is arranged in the air-guiding wall both sides relative with it, and it is fastening with heating resisting metal clamp cover 26 and nut, with watering material feeding 20 between two linings the space between two linings is filled and led up then, and with shaking tamper ram-jolt.Watering material feeding 20 between two linings is high-strength explosion-proof material feedings of watering.
The length of all perpendicular arch bricks 5 is all consistent more than second ring, also successively upwards build by laying bricks or stones according to the building method of first ring, the following pin of pedaling of a ring above the wrong stool projection of every following arch a ring has also become, building its gradient of laying bricks by laying bricks or stones because of arch form is to be fan-shaped from bottom to top to the two ends radiation, it is pedaled pin and can fade away after building some rings by laying bricks or stones, finally become a complete hogring, see Fig. 1.The operation principle of building by laying bricks or stones according to arch form is with the building method of the wrong stool of arch, not only the arch span of bricklaying surface is dwindled significantly, between each ring of whole air-guiding wall arch masonry and each ring, pedal pin mutually and sting stubble mutually, make its one stressed, and build by laying bricks or stones according to arch and suitable for readingly to pedal the tight more operation principle of end opening more, no matter the wrong stool arch form of this method is built by laying bricks or stones and the middle part also can not occurred break phenomenons such as seam or sinking because of the caused end opening of a variety of causes such as pressurized contraction off with the fingers and thumb on any ring.
Air-guiding wall that arch form is built by laying bricks or stones each above the air vent neck bush 1, continue a upwards pile row air vent neck bush 1, and with squint, T shaped brick 15, L shaped brick 28, yi word pattern brick 16 and straight brick 30, with its arch difference levelling up to covering front arch 17.For assurance air-guiding wall body structure is tight, firm, adopt odd-level and even level to press batch fissure of displacement upwards to continue the mode that intersection is built by laying bricks or stones mutually in order to last model brick.Its bricklaying surface of useful brick, can be made into Zhuan Gou and brick tongue.Be provided with arch angle 10 and the outer push rod 12 of hydraulic pressure top, Pressure gauge 11 and water bridge angle wall at the two ends of perpendicular arch brick 5, and the perpendicular arch brick of cast waters material feeding 13 outward, perpendicular arch brick water outward material feeding 13 about it position be body of heater headwall 14.
(2) building method of air-guiding wall odd-level is seen Fig. 7: the odd-level of air-guiding wall is built by laying bricks or stones with yi word pattern refractory brick and air vent neck bush, its method is: build the vertical row air vent neck bush of piling up with the air vent neck bush same position that is positioned at its underpart in position by laying bricks or stones in arch, between two air vent neck bush, build with yi word pattern is brick then with its both sides, be combined into the rectangular configuration of several band air vents, when intersection is built by laying bricks or stones to even level upper layer position, with the horizontal, vertical seam gland of T font brick formation.Concrete building method is: continuity builds by laying bricks or stones vertical pile to continue a pile row odd-level air vent neck bush 1 above the air vent neck bush that is listed as 1 from bottom to top, place straight brick 30 then in the space between two air vent neck bush 1, the rectangular block that yi word pattern brick 16 is combined into some band air vents is respectively put in air vent neck bush 1 both sides.When intersection is built by laying bricks or stones to even level upper layer position, straight brick 30 linking perps 29 glands that the T font brick 15 of the middle part in even level two air vent neck bush 1 gap is relative with its two ends L shaped brick 28 tail tails, air vent neck bush 1 both sides are also respectively built in-line brick 16 by laying bricks or stones, and the position, intermediate portion also will be positioned at " worker worker " relative linking perps 31 glands that form of even level air vent neck bush 1 both sides.
(3), the building method of air-guiding wall even level is seen Fig. 8, the even level of air-guiding wall is built by laying bricks or stones with T font refractory brick, its method is: vertical pile of row air vent neck bush on the odd-level air vent neck bush of collet air vent and the common location of air-guiding wall arch brick air vent, between two neck bush, respectively place a T font refractory brick then with both sides, the two ends of this even level L shaped brick end socket, the centre of described T font brick is crossover sites anyhow, to be positioned at the perps gland of linking of two in-line bricks of odd-level air vent neck bush both sides, and will and be positioned at the transverse joint gland that the in-line brick of its both sides is connected at the straight brick between the two air vent neck bush 1.
Specifically building method is: respectively build a T shape brick 15 by laying bricks or stones in the space and the both sides that upwards continue between pile two air vent neck bush 1 of row, its two ends are respectively with two L font refractory brick 28 edge sealing.It is relative to form the tail tail in two spaces of T shape brick 15 between two air vent neck bush 1, make two T font bricks become the I-shaped shape, being combined into several I-shaped in both sides with T shaped brick 15 and air vent neck bush 1 is air-guiding wall even level such as Fig. 8 of air vent neck bush 1 with each two L shaped bricks 28 relative compositions centres, two ends, the centre of its T shape brick 15 is crossover sites anyhow, with odd-level both sides in-line brick 16 below it, perps 31 that the horizontal linking of two bricks is occurred and in-line brick 16 and straight brick 30 are connected transverse joint 29 glands of appearance anyhow simultaneously.
Brick type of the present invention both can be built by laying bricks or stones at collet of the present invention or above the joist 2, can use the air-guiding wall on the prior art water beams to build by laying bricks or stones again.
Structure such as Fig. 9 of T font refractory brick 15 are complete " T " word structures.Structure such as Figure 10 of L type refractory brick 28 are complete " L " word structures.The structure of yi word pattern refractory brick 16 such as Figure 11 are rectangular configuration, and structure such as Figure 12 of perpendicular wedge shape refractory brick 5 are wedge structures wide at the top and narrow at the bottom.
See Fig. 1, air-guiding wall is to build into flat structure under the arch with perpendicular wedge shape refractory brick above the collet by laying bricks or stones at it, the air-guiding wall two ends build limited angular and load-bearing by laying bricks or stones with arch angle 10, its outside is not sealed, both sides and body of heater headwall external reinforcement post 7 welding at arch angle 10 are provided with the outer push rod jackscrew 12 of arch angle wall and encircle hydraulic pressure top, angle Pressure gauge 11 and withstand and encircle angle 10 on body of heater headwall external reinforcement post 7.When intensification and cooling, the index according to hydraulic pressure top Pressure gauge 11 loosens, tighten jackscrew.The fire-resistant heating resisting metal collet pull bar 9 that is positioned at below it also loosens, tighten its pull-rod nut according to the demonstration of its hydraulic pressure top Pressure gauge 11.
According to big of existing shaft furnace is 10 square meter roasting areas, path length is about 5.6 meters in the two ends, the reality that span is big, the arch of air-guiding wall is put down down to build by laying bricks or stones must adopt by actual size and is put arch angle 10, build the first ring air-guiding wall and number in order by wrong stool shown in Figure 1 is pre-, following horizontal line along two end arch angles 10 is that basic point is drawn horizontal line then, projection under the line is removed with the steel alloy sawing again.After building by laying bricks or stones, wrong stool part is protruded at following ring brick top, has also just become the arch angle 10 of last ring, make the wind-guiding body of wall all respectively to encircle the refractory brick one stressed, can not sink or below the centre brick body of opening one's mouth to cause come off.
See Fig. 6, the arch angle of air-guiding wall 10 adopt heating resisting metals or shell plate all can, arch angle 10 is rectangles that the oblique angle is left in both sides, a side, top are reserved bottom, the mouth of a river and are stayed water inlet towards stove outside, carry out the water circulation with tubing pump and cool off.Base plate should be wider than the wind-guiding body of wall and be no less than 200mm below it, the arch angle that the headwall both sides respectively are no less than 100mm is respectively inserted in both sides, be positioned at the hollow pad brick of putting a little more than heating resisting metal collet 2 21 of the heating resisting metal collet 2 below the air-guiding wall base plate, the bottom of pad brick 21 is body of heater headwalls 6.Come support arch angle 10 by pad brick 21, make not pressurized of heating resisting metal collet 2, be beneficial to cold and hot flexible.Because of air-guiding wall is that arch form is built by laying bricks or stones, and the centre has collet to support again to lean on 27 supports, to make heating resisting metal collet 2 not bear pressure.And cooling air from the air vent 3 of heating resisting metal collet 2 by dispelling the heat.The air-cooled hardening of bulky grain pelletizing disintegrating slag owing to be cooled in the wind; its scouring force and wearing and tearing are also maximum; the setting of heating resisting metal collet or joist 2; not only when building by laying bricks or stones, played the loose tool effect; washing away of air-guiding wall also played protective effect; the lower edge of its air vent (air inlet) 3 is greater than air-guiding wall lining air inlet; can make air vent 3 intake super larges more than 1/3; not only green-ball has obtained sufficient amount of heat, has also increased blast, has strengthened last thrust; make larger particles ball slag be easy to discharge air-guiding wall; alleviated its friction, and can avoid unexpected outer brick body to come off the time, the injury that following maintainer is caused to air-guiding wall.Hydraulic pressure top Pressure gauge 8 outside collet, the collet stove is installed outside the body of heater of heating resisting metal collet.
The existing wide 780mm of the general external diameter of air-guiding wall divides nine holes, the waste heat high-pressure blast of air vent cooling pelletizing collet air vent 3 of heating resisting metal collet or joist 2 under air-guiding wall is discharged in 23 times desiccations of pelletizing oven dry bed from top air-guiding wall air vent air outlet 19 along air-guiding wall air vents 4, its front arch 17 is the refractory brick of square type or wild goose wing shape structure, and this structure binds air vent and forces wind direction to transfer to and put down blows or tiltedly blow according to the gradient of the outside corner of wild goose wing type front arch.
Because of air-guiding wall is that perpendicular wedge type brick arch shape is built by laying bricks or stones, and its air-guiding wall air vent 4 perpendicular to the air vent 3 of heating resisting metal collet or joist 2 and with its perforation, so in the middle of two arch form brick walls, make air vent lining 1, air vent lining 1 is as Figure 13-15, adopt heating resisting metal, carborundum or other fire-resistant hard materials to make, the junction of lining and lining is made into mother-son mouth, and this structure closure is good, stability is high.Because of the carborundum cost higher, other materials of the optional usefulness of air vent top lining are made, but brush antiseized clearance layer 1～2mm around its outside, (hard need the brushing of silicon carbide material can be played the support effect to the top lining) or cover can melt it in the back that is heated with the plastic sheath of above gap same thickness or plate, angle the gap occur.In use fragile because of the common material lining in following position, as long as in maintenance process at any time, it is damaged lining from following taking-up,, do not influence production again from top adding or head into new lining and both can save fund.
Operation principle of the present utility model:
The utility model air-guiding wall heating resisting metal collet (or joist) 2 is to build by laying bricks or stones with perpendicular wedge shape refractory brick arch form because of air-guiding wall above it, therefore the pressure of the air-guiding wall that bears is also little, but its lower plane is exactly the last plane of ripe ball salband, cooling air enters in the air vent from here, thus heating resisting metal collet (or joist) 2 lower planes and its collet air vent (air inlet) 3 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 beam body surface layer of its air-guiding wall heating resisting metal collet 2; not only played the effect that strengthens air-guiding wall centre load-bearing pressure; wear-resisting characteristics during its high temperature have played protective effect to heating resisting metal collet (or joist) 2 lower planes and ventilation aperture; and be worn at it and be convenient to when serious repair, its heating resisting metal collet (or joist) 2 and wind-guiding body of wall are used for a long time with welding manner.
More than disclosed only be specific embodiments of the invention; though the present invention discloses as above with preferred embodiment; but the present invention is not limited thereto; any those skilled in the art can think variation; in not breaking away from design philosophy of the present invention and scope; the present invention is carried out various changes and retouching, all should drop within protection scope of the present invention.
Claims (5)
1. smelting blast deflecting wall for vertical pellet furnace, described air-guiding wall body of wall is built into flat-shaped or arcuation structure under the arch by laying bricks or stones with several layers refractory brick, it is provided with a plurality of air-guiding wall air vents, the air vent neck bush all is housed in the air-guiding wall air vent, by stacked add up and down to connect be chimney-like, the outer surface of air vent neck bush, brushing has antiseized clearance layer, between every ring arch is built two air vents in the air-guiding wall body of wall by laying bricks or stones, metal pull bar is housed, on the perpendicular arch brick in the air-guiding wall body of wall both sides relative the pull bar perforation heating resisting metal clamping plate identical with the metal pull bar specification with the aperture are set with it, heating resisting metal clamping plate and metal pull bar are fastenedly connected, front arch is stamped on air-guiding wall top, the material feeding of watering that is cast with triangle on the front arch is pushed up, it is characterized in that: the bottom of described wind-guiding body of wall is provided with bearing device, the composition of this bearing device comprises heating resisting metal collet and collet lower support post, described heating resisting metal collet is provided with collet air vent perpendicular with the air-guiding wall air vent and that connect, the both sides of heating resisting metal collet are supported with collet lower support post respectively, insert in the clamp cover on the top of this collet lower support post, the bottom of clamp cover is connected with connector with the heating resisting metal collet, the top of clamp cover is connected with the metal pull bar of wind-guiding body of wall, and the other end of collet lower support post inserts in body of heater and is one with it within the walls.
2. smelting blast deflecting wall for vertical pellet furnace according to claim 1, it is characterized in that, rectangle, domes or the arch that described heating resisting metal collet is brought the air port in the middle of being into be the heating resisting metal joist of flat shape down, and its two ends are provided with arch pad brick hole, angle and collet stove outside link, hydraulic pressure top Pressure gauge.
3. smelting blast deflecting wall for vertical pellet furnace according to claim 1 is characterized in that, described front arch is the refractory brick of square type or wild goose wing shape structure.
4. the building method of a smelting blast deflecting wall for vertical pellet furnace as claimed in claim 1, the masonry construction of wind-guiding body of wall is divided into odd-level, even level, arch angle and arcuate part, it is characterized in that, it is that brick the building of lining of air vent forms that described air-guiding wall body and function is erected wedge shape, T font, L type, yi word pattern brick, straight brick and centre, and its building method is:
A. build by laying bricks or stones with perpendicular wedge shape refractory brick at the arch position of air-guiding wall, and perpendicular wedge shape refractory brick is wrong stool arch flat or arch masonry construction down, and its two ends are provided with the arch angle, and lip block is arranged under it;
B. the odd-level of air-guiding wall is built by laying bricks or stones with yi word pattern refractory brick, straight brick and air vent neck bush, its method is: build the vertical row air vent neck bush of piling up with the same position of the air vent neck bush that is positioned at its underpart in position by laying bricks or stones in arch, between two air vent neck bush, build with yi word pattern is brick then with straight brick, both sides, be combined into the rectangular configuration of several band air vents, when intersection is built by laying bricks or stones to even level upper layer position, with the horizontal, vertical seam gland that forms between the even level T font brick and with two ends L shaped brick;
C. the even level of air-guiding wall is built by laying bricks or stones with T font refractory brick, its method is: vertical pile of row air vent neck bush on the odd-level air vent neck bush of collet air vent and the common location of air-guiding wall arch brick air vent, between two air vent neck bush, respectively place a T font refractory brick then with both sides, the two ends of this even level L shaped brick end socket, the centre of described T font brick is crossover sites anyhow, to be positioned at the perps gland of linking of two in-line bricks of odd-level air vent neck bush both sides, and will and be positioned at the linking transverse joint gland of the in-line brick of its both sides at the straight brick between the two air vent neck bush.
5. the building method of smelting blast deflecting wall for vertical pellet furnace according to claim 4 is characterized in that, is provided with the fastening masonry construction of mother-son mouth with the air vent neck bush of heating resisting metal, carborundum or other fire-resistant hard material making.
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| CN2010100334042A CN101738082B (en) | 2010-01-19 | 2010-01-19 | Smelting palletizing shaft furnace air-guiding wall and building method thereof |
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| CN2010100334042A CN101738082B (en) | 2010-01-19 | 2010-01-19 | Smelting palletizing shaft furnace air-guiding wall and building method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110017687A (en) * | 2019-04-19 | 2019-07-16 | 中冶焦耐(大连)工程技术有限公司 | A kind of inner ring wall construction of self-stabilization |
| 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 |
| CN111778394A (en) * | 2020-06-18 | 2020-10-16 | 安徽长江钢铁股份有限公司 | Novel gas mixing chamber retaining wall masonry method |
| CN115340393A (en) * | 2022-10-05 | 2022-11-15 | 甘肃酒钢集团科力耐火材料股份有限公司 | Regenerated anhydrous fire-resistant repair material and preparation method thereof |
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| DE3125320C1 (en) * | 1981-06-27 | 1983-01-13 | Beckenbach, Ulrich, Dipl.-Ing., 4005 Meerbusch | Shaft furnace for burning and sintering piece goods with an internal burner |
| DE3140582C2 (en) * | 1981-10-13 | 1985-01-17 | Beckenbach, Ulrich, Dipl.-Ing., 4005 Meerbusch | Process and ring shaft furnace for firing and sintering lumpy material such as limestone, dolomite or the like |
| CN2301691Y (en) * | 1997-05-22 | 1998-12-23 | 南京钢铁集团有限公司 | Special shaped brick for air guide wall of shaft furnace |
| CN2489284Y (en) * | 2001-06-19 | 2002-05-01 | 长沙冶金设计研究院 | Air guide wall for vetical furnace |
| EP1669709A1 (en) * | 2004-12-13 | 2006-06-14 | Terruzzi Fercalx S.p.A. | Beams for kilns processing lumpy materials |
| CN100396803C (en) * | 2006-07-31 | 2008-06-25 | 巩义市建业耐材有限公司 | Air guide wall arch or mansard arch masonry and brick masonry large beam and pelletizing vertical furnace air guide wall |
| CN201126313Y (en) * | 2007-11-12 | 2008-10-01 | 攀钢集团成都钢铁有限责任公司 | Air guide wall for pellet ore vetical furnace |
| CN201331254Y (en) * | 2008-12-15 | 2009-10-21 | 安阳钢铁集团有限责任公司 | Overwet-preventing structure for rectangular shaft furnace |
| CN101509724B (en) * | 2009-04-10 | 2010-08-25 | 唐山市盈心耐火材料有限公司 | Smelting blast deflecting wall for vertical pellet furnace and drying bed |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN110017687A (en) * | 2019-04-19 | 2019-07-16 | 中冶焦耐(大连)工程技术有限公司 | A kind of inner ring wall construction of self-stabilization |
| CN110017687B (en) * | 2019-04-19 | 2024-04-26 | 中冶焦耐(大连)工程技术有限公司 | Self-stabilizing inner annular wall structure |
| CN111778394A (en) * | 2020-06-18 | 2020-10-16 | 安徽长江钢铁股份有限公司 | Novel gas mixing chamber retaining wall masonry method |
| CN115340393A (en) * | 2022-10-05 | 2022-11-15 | 甘肃酒钢集团科力耐火材料股份有限公司 | Regenerated anhydrous fire-resistant repair material and preparation method thereof |
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