CN103088179B - Blast furnace hot-blast stove orifice combination brick structure - Google Patents
Blast furnace hot-blast stove orifice combination brick structure Download PDFInfo
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- CN103088179B CN103088179B CN201310055145.7A CN201310055145A CN103088179B CN 103088179 B CN103088179 B CN 103088179B CN 201310055145 A CN201310055145 A CN 201310055145A CN 103088179 B CN103088179 B CN 103088179B
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Abstract
The invention provides a blast furnace hot-blast stove orifice combination brick structure relating to the technical field of thermal engineering. Based on a key technology of building an elliptical ring by ingeniously using T-shaped and L-shaped refractory bricks, according to the practical situation of the diameter size of a blast furnace hot-blast stove orifice, the combination brick structure is composed of an outer ring, a neighboring outer ring, an inner ring and a neighboring inner ring, wherein the outer ring and the neighboring outer ring of which the inner diameters are shaped like an ellipse are built by using one T-shaped refractory brick for the ring top and the ring bottom respectively and using L-shaped refractory bricks both sides of the ring; the inner ring and the neighboring inner ring of which the outer diameters are shaped like an ellipse are built by using sealed refractory bricks; the outer ring and the neighboring outer ring as well as the inner ring and the neighboring inner ring are fixedly connected by refractory cement in a mutual sticking state; the elliptical ring of the outer ring and neighboring outer ring is fixedly connected by refractory cement in a state of being sleeved with the inner ring and the neighboring inner ring; and the bending angle of the L-shaped refractory bricks is 1-180 degrees. The invention is used for the manufacturing of a blast furnace hot-blast stove orifice. The combination brick structure is scientific and ingenious in design, high in production efficiency and excellent in quality, and can resist a harsh environment.
Description
Technical field
Blast furnace hot-blast stove orifice combination brick structure of the present invention, relates to Thermal Power Engineering technical field; Be specifically related to Blast furnace hot-blast stove orifice combination brick structure technical field.
Background technology
At present, traditional mouth of pipe (comprises the mouth of pipe of hot-blast outlet, the mouth of pipe of air intlet, the mouth of pipe of gas inlet, the mouth of pipe of chimney intake, the mouth of pipe etc. of flue outlet) modular tile, ubiquitous deficiency, defect and drawback are: with blast funnace hot blast stove hot-blast outlet modular tile for representative, its structure design shortcoming is scientific and reasonable, mouth of pipe modular tile on period is caused to produce brick, pipeline is burnt red (high temperature), heat energy severe attrition, the large wall brick of hotblast stove is caused to collapse, work-ing life is short, inefficiency, overall efficiency is poor, even cause hotblast stove overhaul, the long-time damping down of blast furnace, have a strong impact on the serious consequences such as normal production.Along with the strengthening of blast-furnace smelting, the raising of high wind-warm syndrome, high blast level, the short tube place of blast funnace hot blast stove hot-blast outlet modular tile alters wind, hot-blast outlet place furnace shell and is burnt the problems such as red, work-ing life is short at high operating temperatures, has become the Main Bottleneck that blast funnace hot blast stove normally works.More particularly, this heat energy severe attrition, production facility be damaged, the pernicious consequence that has a strong impact on normal production, cause production declining to be even forced to stop production easily, and be the outstanding technology knotty problem of pendulum in face of the industry, nobody can solve so far.Based on the expertise of contriver and working experience and the unremitting pursue to cause, conscientiously and fully investigating, understanding, analyzing, summing up, studying on existing known technology and present situation basis, take " ingenious utilization T-shaped and L shape laying fireproof bricks elliptical ring " gordian technique, succeed in developing the present invention.Solve the deficiency of existing known technology and present situation existence, defect and drawback, can be applicable to the mouth of pipe, the mouth of pipe of air intlet, each side such as the mouth of pipe, the mouth of pipe of chimney intake, the mouth of pipe of flue outlet of gas inlet that comprise hot-blast outlet, can also widespread use in other every profession and trades, effectively raise the state of the art of the industry.
Summary of the invention
The present invention is with " ingenious utilization T-shaped and L shape laying fireproof bricks elliptical ring " gordian technique, according to blast funnace hot blast stove nozzle diameter size practical situation, L shape laying fireproof bricks is all used to become the outer shroud of the equal ovalize of internal diameter and face outer shroud by respectively using one block of T-shaped refractory brick and ring both sides at the bottom of Huan Ding and ring, become the inner ring of the equal ovalize of external diameter by sealed laying fireproof bricks and faced inner ring and jointly form, described outer shroud with face outer shroud, inner ring with face inner ring and be all fixedly connected with by refractory cements mutually posting under state, described outer shroud and face outer shroud elliptical ring in suit inner ring and be fixedly connected with by refractory cements under facing interior ring status, the angle of bend of L shape refractory brick is 1-180 degree angle.Can be applicable to the mouth of pipe, the mouth of pipe of air intlet, each side such as the mouth of pipe, the mouth of pipe of chimney intake, the mouth of pipe of flue outlet of gas inlet that comprise hot-blast outlet, can also widespread use in other every profession and trades.
The object reached by the present invention is: 1., with " ingenious utilization T-shaped and L shape laying fireproof bricks elliptical ring " gordian technique, provide the new texture of " Blast furnace hot-blast stove orifice combination brick structure ".2., make that design of the present invention is unique practical, design science rationally, simple and ingenious structure, easy to use effectively, Be very effective and reliable and stable.3., by the present invention, the deficiency of existing known technology and present situation existence, defect and drawback is solved.The generation of pernicious consequence of 4., stopping to be forced to stop production by the present invention.5. the present invention, is made to give full play to the novel texture technical superiority of " T-shaped refractory brick and L shape laying fireproof bricks elliptical ring ", and eliminate with this, the mouth of pipe (with blast funnace hot blast stove hot-blast outlet for representative) modular tile on period falls brick, pipeline is burnt red (high temperature), heat energy severe attrition, the undesirable condition causing the large wall brick of hotblast stove to collapse, effectively improves hot blast temperature, oxygen enrichment percentage, minimizing heat energy loss, ensures the quality of production, enhances productivity.6., the present invention can be applicable to the mouth of pipe, the mouth of pipe of air intlet, each side such as the mouth of pipe, the mouth of pipe of chimney intake, the mouth of pipe of flue outlet of gas inlet that comprise hot-blast outlet, can also widespread use in other every profession and trades, its applied range.7., " Blast furnace hot-blast stove orifice combination brick structure " new texture of providing on " ingenious utilization T-shaped and L shape laying fireproof bricks elliptical ring " gordian technique basis of the present invention, be convenient to be made low, easy to use and be beneficial to wide popularization and application.
For achieving the above object, technical scheme provided by the invention is:
A kind of Blast furnace hot-blast stove orifice combination brick structure, all use L shape laying fireproof bricks to become the outer shroud of the equal ovalize of internal diameter by respectively using one block of T-shaped refractory brick and ring both sides at the bottom of Huan Ding and ring and face outer shroud, become the inner ring of the equal ovalize of external diameter by sealed laying fireproof bricks and face inner ring and jointly form, described outer shroud is all fixedly connected with by refractory cements mutually posting under state with facing outer shroud, inner ring and face inner ring, described outer shroud and face outer shroud elliptical ring in suit inner ring and be fixedly connected with by refractory cements under facing interior ring status;
Described Blast furnace hot-blast stove orifice combination brick structure, the angle of bend of described L shape refractory brick (122) is 1-180 degree angle (in 1-180 degree angular range arbitrarily angled, also may be the angle of decimal as the case may be).
Described Blast furnace hot-blast stove orifice combination brick structure, described outer shroud and the oval internal diameter that faces outer shroud and inner ring and the oval external diameter facing inner ring match and are fixedly connected with by refractory cements.
Described Blast furnace hot-blast stove orifice combination brick structure, described L shape refractory brick is with the structure of excessive mode natural torsion shape.
Described Blast furnace hot-blast stove orifice combination brick structure, according to the practical situation of described blast funnace hot blast stove nozzle diameter size, to the angle of bend of L shape refractory brick described in each block all in the angular range of 1-180 degree (in 1-180 degree angular range arbitrarily angled, also may be the angle of decimal as the case may be) select.That is: for building the angle of bend of each block L shape refractory brick of described blast-furnace hot-air furnace tube port by laying bricks or stones, according to the practical situation of described blast-furnace hot-air furnace tube port (taking hot-blast outlet as representative) diameter, all select in the angular range of 1-180 degree, thus become the outer shroud of the equal ovalize of internal diameter by T-shaped refractory brick with L shape laying fireproof bricks and face outer shroud.More particularly, the present invention is applicable to contain in the general industry and other every profession and trades for the import and export presenting various diameter; That is: can be applicable to the mouth of pipe, the mouth of pipe of air intlet, each side such as the mouth of pipe, the mouth of pipe of chimney intake, the mouth of pipe of flue outlet of gas inlet that comprise hot-blast outlet, can also widespread use in other every profession and trades, it is applied widely.
Described Blast furnace hot-blast stove orifice combination brick structure, described T-shaped refractory brick 121, L shape refractory brick 122, selection refractory fireclay block is in sealed refractory brick composition, alumina firebrick, one in silica fire resistant brick, described refractory fireclay block is the aluminium sesquioxide including 40-48 weight part in composition, the silicon-dioxide of≤54 weight parts, the refractory fireclay block of the ferric oxide formation of≤2 weight parts, described alumina firebrick is include >=the aluminium sesquioxide of 48 weight parts in composition, the silicon-dioxide of≤46 weight parts, the alumina firebrick of the ferric oxide formation of≤2 weight parts, described silica fire resistant brick is include≤the aluminium sesquioxide of 1.0 weight parts in composition, the silicon-dioxide of >=95 weight parts, the silica fire resistant brick of the ferric oxide formation of≤1.0 weight parts.In described refractory fireclay block, alumina firebrick, silica fire resistant brick, except the composition of weight part described above, all also include other proper constituents of the weight part contained by common refractory brick, other proper constituents just described in these are well-known in the industry, omit in order to the brief and concise of length.
Described Blast furnace hot-blast stove orifice combination brick structure, described in face outer shroud 2 inner side and the inner side of facing inner ring 4 be all connected with common laying fireproof bricks.
Described Blast furnace hot-blast stove orifice combination brick structure, the described mouth of pipe is select the one in the mouth of pipe of the mouth of pipe of the mouth of pipe of the mouth of pipe of hot-blast outlet, air intlet, the mouth of pipe of gas inlet, chimney intake, flue outlet.
Described Blast furnace hot-blast stove orifice combination brick structure, described ellipse replaces with circle.
Described Blast furnace hot-blast stove orifice combination brick structure, described outer shroud and face outer shroud and replace with individual layer outer shroud, described inner ring and face inner ring and replace with individual layer inner ring.
The present invention to the design and study thought of existing known technology and present situation and working condition is:
1, to the analysis (representatively analyzing with the structure of blast funnace hot blast stove hot-blast outlet) of existing known technology and present situation:
1., the structure shortcoming of existing known technology blast funnace hot blast stove hot-blast outlet is scientific and reasonable: blast funnace hot blast stove hot-blast outlet is the most severe position of hotblast stove Working environment, as shown in Figure 8,9, 10, under cold conditions state, this is a kind of very firm structure: outer shroud brick is designed to petal brick, together with tightly encircling with pipeline brick, on pipeline brick, semicircular tenia ditch tongue locking design, makes whole internal structure compacter, firm.But it should be noted that: it is not work under cold conditions state, it works under very rugged environment.
2., severe Working environment: hotblast stove big-wall high temperature position is all adopt silica brick now, hotblast stove is at the blow-on initial stage, the large wall brick of hotblast stove has a disposable expansion, large wall brick is when building by laying bricks or stones, laterally stay dilatation joint, vertical then do not have (also can not stay), the bulging force produced during lateral expansion is inflated seam and absorbs, the bulging force produced during vertical expansion can only make large wall brick rise overally, can only be absorbed by hot-blast outlet modular tile outer shroud petal brick at hot-blast outlet position and upload to top petal brick again through pipeline brick, and hot-blast outlet modular tile top petal brick also needs the own wt bearing the large wall brick in top, this just causes the extruding of about to whole hot-blast outlet.The pressure long-term existence of the large wall brick own wt in hot-blast outlet top, hot-blast outlet modular tile petal brick produces compressive creep under long-term high temperature, hyperbaric environment, hot-blast outlet petal brick overall dimensions can be shunk, make hot-blast outlet petal brick together with pipeline brick all the time locking, the pressure of the large wall brick own wt in hot-blast outlet top will pass to hot-blast outlet pipeline brick.And hot-blast outlet Working environment is in periodic change: during accumulation of heat and on air.Hot-blast outlet on air between, the hot blast of 1050 ~ 1300 DEG C transfers out through hot-blast outlet pipeline, now hot-blast outlet pipeline working face temperature has individual Gradient Descent, within about 45 minutes, (burn one for 2 to send, according to hot blast stove design index, about there is difference the air-supply time) left and right is down to 950 ~ 1200 DEG C (the general temperature difference controls 50 ~ 100 DEG C, if design wind pushing temperature is 1200 DEG C, general wind-warm syndrome drop to 1100 DEG C ~ 1150 DEG C just out-of-blast, start accumulation of heat.), then hot blast valve cuts out, start accumulation of heat about about 80 minutes, this alternately change for a long time of hot-blast outlet pipeline Working environment, cause the generation displacement of expanding with heat and contract with cold of hot-blast outlet pipeline, main displacement direction is laterally, from traditional hot-blast outlet modular tile project organization, hot-blast outlet pipeline brick, under the encircling of petal brick, does not arrange any sense of displacement restriction, and that is pipeline brick produces the direction of displacement when expanding with heat and contract with cold may be two-way or arbitrary.
3., the structure of existing known technology blast funnace hot blast stove hot-blast outlet and its severe Working environment draw a conclusion: a conclusion will be drawn from traditional existing project organization of known technology hot-blast outlet modular tile and the analysis of Working environment: hot-blast outlet modular tile on period, the large wall brick gravity pressure that hot-blast outlet top petal brick bore at the blow-on initial stage, because of the wedge lock structure of petal brick itself, is absorbed by hot-blast outlet petal brick.Petal brick is meeting tertiary creep under long-term high temperature, high pressure, petal brick physical dimension reduces, when petal brick physical dimension narrow down to himself wedge lock structure can not hold the gravity pressure of the large wall brick in top time, born pressure will be given to hot-blast outlet pipeline brick, cause petal brick and pipeline brick all the time tightly together with locking.And hot-blast outlet pipeline brickwork will stand accumulation of heat and alternation high temperature during air-supply when doing, to expand with heat and contract with cold generation displacement, because not being subject to the restriction in any direction during pipeline brick displacement, although hot-blast outlet short tube place is provided with dilatation joint, but not necessarily the heat expansion (likely can toward the displacement of hotblast stove center position) of hot air duct brick can shut dilatation joint, and this just causes hot-blast outlet short tube place to alter wind; Frictional force when petal brick is encircled when also will bear weight and the pipeline brick displacement of the large wall brick in top when hot-blast outlet pipeline brickwork is done, this just will inevitably cause the breakage of hot-blast outlet modular tile pipeline brick, when hot-blast outlet pipeline brick can't bear the heavy load, hot-blast outlet pipeline brick will be caused damaged, final performance is exactly that hot-blast outlet modular tile falls brick, cause hot air furnace hot air to export the large wall brick in top to collapse, cause the serious consequence of hotblast stove overhaul, the long-time damping down of blast furnace.
2, design philosophy of the present invention (representatively designing with the structure of blast funnace hot blast stove hot-blast outlet):
Since the Working environment of blast funnace hot blast stove hot-blast outlet can not change, that solves Blast furnace hot-blast stove orifice combination brick structure (with the structure of blast funnace hot blast stove hot-blast outlet representatively) with regard to needing a kind of new design.
1., Blast furnace hot-blast stove orifice combination brick structure of the present invention (with the structure of blast funnace hot blast stove hot-blast outlet representatively): as Figure of description 1, 2, 3, 4, 5, 6, shown in 7, contrast from the existing project organization of known technology tradition hot-blast outlet modular tile and the project organization of Blast furnace hot-blast stove orifice combination brick structure of the present invention (Novel hot-air outlet modular tile), the petal brick of Blast furnace hot-blast stove orifice combination brick structure of the present invention (i.e. the structure of blast funnace hot blast stove hot-blast outlet) has been designed to: all use L shape laying fireproof bricks become the outer shroud of the equal ovalize of internal diameter and face outer shroud by respectively using one block of T-shaped refractory brick and ring both sides at the bottom of Huan Ding and ring, become the inner ring of the equal ovalize of external diameter by sealed laying fireproof bricks and faced inner ring and jointly form.
2., the present invention's design is to described T-shaped refractory brick, L shape refractory brick, the requirement (resistant to elevated temperatures refractory brick) of sealed refractory brick composition: T-shaped refractory brick of the present invention, L shape refractory brick, selection refractory fireclay block is in sealed refractory brick composition, alumina firebrick, one in silica fire resistant brick, described refractory fireclay block is the aluminium sesquioxide including 40-48 weight part in composition, the silicon-dioxide of≤54 weight parts, the refractory fireclay block of the ferric oxide formation of≤2 weight parts, described alumina firebrick is include >=the aluminium sesquioxide of 48 weight parts in composition, the silicon-dioxide of≤46 weight parts, the alumina firebrick of the ferric oxide formation of≤2 weight parts, described silica fire resistant brick is include≤the aluminium sesquioxide of 1.0 weight parts in composition, the silicon-dioxide of >=95 weight parts, the silica fire resistant brick of the ferric oxide formation of≤1.0 weight parts.
3., the angle of bend of L shape refractory brick of the present invention: according to the practical situation of described blast-furnace hot-air furnace tube port (taking hot-blast outlet as representative) diameter, to the angle of bend of L shape refractory brick described in each block all in the angular range of 1-180 degree (in 1-180 degree angular range arbitrarily angled, also may be the angle of decimal as the case may be) select.That is: for building the angle of bend of each block L shape refractory brick of described blast funnace hot blast stove hot-blast outlet by laying bricks or stones, according to the practical situation of described blast-furnace hot-air furnace tube port (taking hot-blast outlet as representative) diameter, all select in the angular range of 1-180 degree, thus become the outer shroud of the equal ovalize of internal diameter by T-shaped refractory brick with L shape laying fireproof bricks and face outer shroud.More particularly, the present invention is applicable to contain in the general industry and other every profession and trades for the outlet presenting various diameter, that is: can be applicable to the mouth of pipe, the mouth of pipe of air intlet, each side such as the mouth of pipe, the mouth of pipe of chimney intake, the mouth of pipe of flue outlet of gas inlet that comprise hot-blast outlet, can also widespread use in other every profession and trades, it is applied widely.
4., the refractory brick of T-shaped described in the present invention and L shape refractory brick build that to be connected be the novelty perfect combination of a novelty by laying bricks or stones: by respectively using one block of T-shaped refractory brick and ring both sides all to use L shape laying fireproof bricks to become the outer shroud of the equal ovalize of internal diameter at the bottom of Huan Ding and ring and facing outer shroud, become the inner ring of the equal ovalize of external diameter by sealed laying fireproof bricks and face inner ring and jointly form described in the present invention, it is the novelty perfect combination of a novelty, T-shaped refractory brick has the effect of horizontal support, it is connected with L shape laying fireproof bricks, can play the effect exceeding self-ability.
5., beneficial effect analysis to Blast furnace hot-blast stove orifice combination brick structure of the present invention (with blast funnace hot blast stove hot-blast outlet modular tile structure for representative): by above to structure and the Working environment analysis of existing known technology tradition hot-blast outlet modular tile, contrast Blast furnace hot-blast stove orifice combination brick structure of the present invention again, the present invention can decompose the gravity pressure of the large wall brick in hot-blast outlet modular tile petal brick top, particularly it is at long term high temperature, after high-pressure work creep generation physical dimension reduces, under the large wall brick gravity pressure on hot-blast outlet petal brick top, hot-blast outlet petal brick and pipeline brick locking can be prevented, the gravity pressure of wall brick large on the petal brick of hot-blast outlet top can not be passed to hot-blast outlet pipeline brick, to the Working environment that hot-blast outlet pipeline brick one is comparatively safe, inner ring of the present invention with face inner ring pipeline brick and be designed to oval structure, restriction conduit brick expands with heat and contract with cold and produces the direction of displacement, allow its sense of displacement can only towards the dilatation joint direction at hot-blast outlet short tube place, so can close the dilatation joint at sliding joint between inner and outer ring petal brick and hot-blast outlet short tube place, keep the tightness at hot-blast outlet short tube place, prevent from altering wind, outer shroud of the present invention with face outer shroud petal brick and be designed to a tube-in-tube structure, ensure that hot-blast outlet pipeline brick has a safety, airtight environmental work all the time.Contrast from the project organization of the present invention and traditional hot-blast outlet modular tile, the present invention can ensure that hot air furnace hot air outlet modular tile is long-lived completely.
3, principle of work of the present invention and working process (with the structure of blast funnace hot blast stove hot-blast outlet representatively):
Working environment of the present invention and working process do not change, it is scientific and reasonable by the present invention and simple structure cleverly, oval structure is constituted by T-shaped refractory brick and L shape refractory brick, effective gravity pressure decomposing large wall brick, limit the direction of displacement, enclose the dilatation joint at sliding joint between inner and outer ring and hot-blast outlet short tube place, prevent and alter wind, also can prevent hot-blast outlet petal brick and pipeline brick locking, to the Working environment that hot-blast outlet pipeline brick one is comparatively safe, solve the deficiency of existing known technology and present situation, defect and drawback, the technology eliminating the industry is difficult, due contribution has been made in technical progress for the industry.
Owing to have employed technical scheme provided by the invention, owing to present invention employs " ingenious utilization T-shaped and L shape laying fireproof bricks elliptical ring " gordian technique, because the present invention is to described in the design and study thought of existing known technology and present situation and working condition, because the present invention is according to the practical situation of blast-furnace hot-air furnace tube port (taking hot-blast outlet as representative) diameter, L shape laying fireproof bricks is all used to become the outer shroud of the equal ovalize of internal diameter and face outer shroud by respectively using one block of T-shaped refractory brick and ring both sides at the bottom of Huan Ding and ring, become the inner ring of the equal ovalize of external diameter by sealed laying fireproof bricks and faced inner ring and jointly form, described outer shroud with face outer shroud, inner ring with face inner ring and be all fixedly connected with by refractory cements mutually posting under state, described outer shroud and face outer shroud elliptical ring in suit inner ring and be fixedly connected with by refractory cements under facing interior ring status, the angle of bend of L shape refractory brick is 1-180 degree angle (arbitrarily angled in 1-180 degree angular range, also may be the angle of decimal as the case may be).Make the present invention compared with existing known technology and present situation, the beneficial effect of acquisition is:
1., present invention employs " ingenious utilization T-shaped and L shape laying fireproof bricks elliptical ring " gordian technique, thus provide the new texture of " Blast furnace hot-blast stove orifice combination brick structure ".
2., present invention achieves that design is unique practical, design science rationally, simple and ingenious structure, easy to use effectively, Be very effective is reliable.
3., by the present invention, the deficiency of existing known technology and present situation existence, defect and drawback is solved.
4., T-shaped refractory brick of the present invention, L shape refractory brick, selection refractory fireclay block is in sealed refractory brick composition, alumina firebrick, one in silica fire resistant brick, described refractory fireclay block is the aluminium sesquioxide including 40-48 weight part in composition, the silicon-dioxide of≤54 weight parts, the refractory fireclay block of the ferric oxide formation of≤2 weight parts, described alumina firebrick is include >=the aluminium sesquioxide of 48 weight parts in composition, the silicon-dioxide of≤46 weight parts, the alumina firebrick of the ferric oxide formation of≤2 weight parts, described silica fire resistant brick is include≤the aluminium sesquioxide of 1.0 weight parts in composition, the silicon-dioxide of >=95 weight parts, the silica fire resistant brick of the ferric oxide formation of≤1.0 weight parts.Obtain resistant to elevated temperatures beneficial effect.
5., the present invention according to the practical situation of described blast-furnace hot-air furnace tube port (taking hot-blast outlet as representative) diameter, to the angle of bend of L shape refractory brick described in each block all in the angular range of 1-180 degree (in 1-180 degree angular range arbitrarily angled, also may be the angle of decimal as the case may be) select.That is: for building the angle of bend of each block L shape refractory brick of described blast funnace hot blast stove hot-blast outlet by laying bricks or stones, according to the practical situation of described blast funnace hot blast stove hot-blast outlet diameter, all select in the angular range of 1-180 degree, thus become the outer shroud of the equal ovalize of internal diameter by T-shaped refractory brick with L shape laying fireproof bricks and face outer shroud.More particularly, the present invention is applicable to contain for the import and export presenting various diameter in the general industry and other every profession and trades, and it is applied widely.
6., described in the present invention by respectively using one block of T-shaped refractory brick and ring both sides all to use L shape laying fireproof bricks to become the outer shroud of the equal ovalize of internal diameter at the bottom of Huan Ding and ring and facing outer shroud, become the inner ring of the equal ovalize of external diameter by sealed laying fireproof bricks and face inner ring and jointly form, it is the novelty perfect combination of a novelty, T-shaped refractory brick has the effect of horizontal support, it is connected with L shape laying fireproof bricks, can play the effect exceeding self-ability.
7., the present invention effectively raises hot blast temperature, oxygen enrichment percentage, decreases heat energy loss, ensure that the quality of production, improves production efficiency.
8., the present invention's " ingenious utilization T-shaped and L shape laying fireproof bricks elliptical ring " provides the new texture of " Blast furnace hot-blast stove orifice combination brick structure ", is convenient to be made low, easy to use and is beneficial to wide popularization and application.
9., the present invention can be applicable to the mouth of pipe, the mouth of pipe of air intlet, each side such as the mouth of pipe, the mouth of pipe of chimney intake, the mouth of pipe of flue outlet of gas inlet that comprise hot-blast outlet, can also widespread use in other every profession and trades, its applied range.
10., to the invention solves the technology that the industry exists for many years difficult, effectively improves the state of the art of the industry.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of T-shaped refractory brick in the specific embodiment of the invention.
Fig. 2 is the schematic diagram of one of L shape refractory brick in the specific embodiment of the invention.
Fig. 3 is the schematic front view of the specific embodiment of the invention.
Fig. 4 is that the A-A of Fig. 3 is to schematic diagram.
Fig. 5 is that the B-B of Fig. 3 is to schematic diagram.
Fig. 6 is the schematic perspective view of the specific embodiment of the invention.
Fig. 7 is the decomposing schematic representation of the specific embodiment of the invention.
Fig. 8 is the schematic front view of existing known technology; Scheme as with of the present invention contrast.
Fig. 9 is the schematic perspective view of existing known technology; Scheme as with of the present invention contrast.
Figure 10 is the decomposing schematic representation of existing known technology; Scheme as with of the present invention contrast.
Label in figure: 121, T-shaped refractory brick, 122, L shape refractory brick, 1, outer shroud, 2 and face outer shroud, 3, inner ring, 4, face inner ring.
Embodiment
Embodiment one
Below in conjunction with Figure of description, the present invention is described in detail.Shown in Figure of description 1,2,3,4,5,6,7:
A kind of Blast furnace hot-blast stove orifice combination brick structure, all use L shape refractory brick 122 to build into the outer shroud 1 of the equal ovalize of internal diameter by laying bricks or stones by respectively using one block of T-shaped refractory brick 121 and ring both sides at the bottom of Huan Ding and ring and face outer shroud 2, become the inner ring 3 of the equal ovalize of external diameter by sealed laying fireproof bricks and face inner ring 4 and jointly form, described outer shroud 1 is all fixedly connected with by refractory cements mutually posting under state with facing outer shroud 2, inner ring 3 and face inner ring 4, described outer shroud 1 and face outer shroud 2 elliptical ring in suit inner ring 3 and be fixedly connected with by refractory cements under facing inner ring 4 state;
Described Blast furnace hot-blast stove orifice combination brick structure, the angle of bend of described L shape refractory brick 122 is 1-180 degree angle (in 1-180 degree angular range arbitrarily angled, also may be the angle of decimal as the case may be).
Described Blast furnace hot-blast stove orifice combination brick structure, described outer shroud 1 and the oval internal diameter that faces outer shroud 2 and inner ring 3 and the oval external diameter facing inner ring 4 match and are fixedly connected with by refractory cements.
Described Blast furnace hot-blast stove orifice combination brick structure, described L shape refractory brick 122 is with the structure of excessive mode natural torsion shape.
Described Blast furnace hot-blast stove orifice combination brick structure, according to the practical situation of described blast-furnace hot-air furnace tube port (taking hot-blast outlet as representative) diameter, to the angle of bend of L shape refractory brick 122 described in each block all in the angular range of 1-180 degree (in 1-180 degree angular range arbitrarily angled, also may be the angle of decimal as the case may be) select.That is: for building the angle of bend of each block L shape refractory brick 122 of described blast-furnace hot-air furnace tube port (taking hot-blast outlet as representative) by laying bricks or stones, according to the practical situation of described blast funnace hot blast stove hot-blast outlet diameter, all select in the angular range of 1-180 degree, thus build into the outer shroud 1 of the equal ovalize of internal diameter by T-shaped refractory brick 121 by laying bricks or stones with L shape refractory brick 122 and face outer shroud 2.More particularly, the present invention is applicable to contain for the outlet presenting various diameter in the general industry and other every profession and trades, and it is applied widely.
Described Blast furnace hot-blast stove orifice combination brick structure, described T-shaped refractory brick 121, L shape refractory brick 122, selection refractory fireclay block is in sealed refractory brick composition, alumina firebrick, one in silica fire resistant brick, described refractory fireclay block is the aluminium sesquioxide including 40-48 weight part in composition, the silicon-dioxide of≤54 weight parts, the refractory fireclay block of the ferric oxide formation of≤2 weight parts, described alumina firebrick is include >=the aluminium sesquioxide of 48 weight parts in composition, the silicon-dioxide of≤46 weight parts, the alumina firebrick of the ferric oxide formation of≤2 weight parts, described silica fire resistant brick is include≤the aluminium sesquioxide of 1.0 weight parts in composition, the silicon-dioxide of >=95 weight parts, the silica fire resistant brick of the ferric oxide formation of≤1.0 weight parts.In described refractory fireclay block, alumina firebrick, silica fire resistant brick, except the composition of weight part described above, all also include other proper constituents of the weight part contained by common refractory brick, other proper constituents just described in these are well-known in the industry, omit in order to the brief and concise of length.
Described Blast furnace hot-blast stove orifice combination brick structure, described in face outer shroud 2 inner side and the inner side of facing inner ring 4 be all connected with common laying fireproof bricks.
Described Blast furnace hot-blast stove orifice combination brick structure, the described mouth of pipe is select the one in the mouth of pipe of the mouth of pipe of the mouth of pipe of the mouth of pipe of hot-blast outlet, air intlet, the mouth of pipe of gas inlet, chimney intake, flue outlet.
Described Blast furnace hot-blast stove orifice combination brick structure, described ellipse replaces with circle.
Described Blast furnace hot-blast stove orifice combination brick structure, described outer shroud 1 and face outer shroud 2 and replace with individual layer outer shroud, described inner ring 3 and face inner ring 4 and replace with individual layer inner ring.
In above-mentioned specific implementation process: to the angle of bend of described L shape refractory brick 122 respectively with 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177, 178, 179, 180 degree of angles are implemented, to for building outer shroud 1 by laying bricks or stones and facing the angle of bend of each block L shape refractory brick 122 of outer shroud 2, all according to the practical situation of blast funnace hot blast stove hot-blast outlet diameter, all select in the angular range of 1-180 degree, it should be noted that at this----arbitrarily angled in 1-180 degree angular range, also have selected the angle of decimal as the case may be, do not enumerate at this, thus jointly build into the outer shroud 1 of the equal ovalize of internal diameter by T-shaped refractory brick 121 by laying bricks or stones with L shape refractory brick 122 and face outer shroud 2, the described mouth of pipe is implemented with the mouth of pipe of the mouth of pipe of the mouth of pipe of the mouth of pipe of the mouth of pipe of hot-blast outlet, air intlet, gas inlet, chimney intake, flue outlet respectively, the present invention can be applicable to the mouth of pipe, the mouth of pipe of air intlet, each side such as the mouth of pipe, the mouth of pipe of chimney intake, the mouth of pipe of flue outlet of gas inlet that comprise hot-blast outlet, can also widespread use in other every profession and trades, its applied range, obtain the good result of expection.
Embodiment two
Implement according to embodiment one, just: circle is replaced with to described ellipse and implements; Obtain the good result of expection.
Embodiment three
Implement according to embodiment one, just: to described outer shroud 1 and face outer shroud 2 and replace with individual layer outer shroud and implement; To described inner ring 3 and face inner ring 4 and replace with individual layer inner ring and implement; All obtain the good result of expection.
The foregoing is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention; The those of ordinary skill of all industry all can smooth and easyly be implemented, but not departing from technical solution of the present invention and make the equivalent variations of differentiation, is Equivalent embodiments of the present invention, all still belongs to technical scheme of the present invention.
Claims (8)
1. a Blast furnace hot-blast stove orifice combination brick structure, it is characterized in that: all use L shape refractory brick (122) build into the outer shroud (1) of the equal ovalize of internal diameter by laying bricks or stones and face outer shroud (2) by respectively using one piece of T-shaped refractory brick (121) and ring both sides at the bottom of Huan Ding and ring, become the inner ring of the equal ovalize of external diameter (3) by sealed laying fireproof bricks and faced inner ring (4) and jointly form, described outer shroud (1) with face outer shroud (2), inner ring (3) with face inner ring (4) and be all fixedly connected with by refractory cements mutually posting under state, described outer shroud (1) and face elliptical ring inherence suit inner ring (3) and be fixedly connected with by refractory cements under facing inner ring (4) state of outer shroud (2),
Described Blast furnace hot-blast stove orifice combination brick structure, the angle of bend of described L shape refractory brick (122) is 1-180 degree angle;
Described T-shaped refractory brick (121), L shape refractory brick (122), selection refractory fireclay block is in sealed refractory brick composition, alumina firebrick, one in silica fire resistant brick, described refractory fireclay block is the aluminium sesquioxide including 40-48 weight part in composition, the silicon-dioxide of≤54 weight parts, the refractory fireclay block of the ferric oxide formation of≤2 weight parts, described alumina firebrick is include >=the aluminium sesquioxide of 48 weight parts in composition, the silicon-dioxide of≤46 weight parts, the alumina firebrick of the ferric oxide formation of≤2 weight parts, described silica fire resistant brick is include≤the aluminium sesquioxide of 1.0 weight parts in composition, the silicon-dioxide of >=95 weight parts, the silica fire resistant brick of the ferric oxide formation of≤1.0 weight parts.
2. Blast furnace hot-blast stove orifice combination brick structure according to claim 1, is characterized in that: described outer shroud (1) and the oval internal diameter that faces outer shroud (2) and inner ring (3) and the oval external diameter facing inner ring (4) match and be fixedly connected with by refractory cements.
3. Blast furnace hot-blast stove orifice combination brick structure according to claim 1, is characterized in that: described L shape refractory brick (122) is with the structure of excessive mode natural torsion shape.
4. Blast furnace hot-blast stove orifice combination brick structure according to claim 1, it is characterized in that: according to the practical situation of described blast funnace hot blast stove nozzle diameter size, the angle of bend of L shape refractory brick (122) described in each block is all selected in the angular range of 1-180 degree.
5. Blast furnace hot-blast stove orifice combination brick structure according to claim 1, is characterized in that: described in face outer shroud (2) inner side and the inner side of facing inner ring (4) be all connected with common laying fireproof bricks.
6. Blast furnace hot-blast stove orifice combination brick structure according to claim 1, is characterized in that: the described mouth of pipe is select the one in the mouth of pipe of the mouth of pipe of the mouth of pipe of the mouth of pipe of hot-blast outlet, air intlet, the mouth of pipe of gas inlet, chimney intake, flue outlet.
7. Blast furnace hot-blast stove orifice combination brick structure according to claim 1, is characterized in that: described ellipse replaces with circle.
8. Blast furnace hot-blast stove orifice combination brick structure according to claim 1 and 2, is characterized in that: described outer shroud (1) and face outer shroud (2) and replace with individual layer outer shroud, described inner ring (3) and face inner ring (4) and replace with individual layer inner ring.
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| CN105238937A (en) * | 2015-10-19 | 2016-01-13 | 江苏诺明高温材料股份有限公司 | Application combined bricks for smoke outlet and nozzle of anode furnace |
| RU172546U1 (en) * | 2016-02-24 | 2017-07-11 | Эдуард Борисович Новоселов | Fireproof lining of openings in the wall of blast furnace air heaters (fittings and manholes) |
| CN107385132A (en) * | 2017-08-14 | 2017-11-24 | 上海二十冶建设有限公司 | Hot-blast stove big-wall closes tweel block and exempts to process construction method |
| CN114107586B (en) * | 2021-12-10 | 2023-02-07 | 中冶南方武汉钢铁设计研究院有限公司 | Hot blast stove system and hot blast outlet combined brick |
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| CN2215491Y (en) * | 1994-09-30 | 1995-12-20 | 冶金工业部重庆钢铁设计研究院 | Composite brick for blast furnace |
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