CN211177948U - Dynamic high-temperature furnace kiln is with fire-resistant prefabricated brick - Google Patents
Dynamic high-temperature furnace kiln is with fire-resistant prefabricated brick Download PDFInfo
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- CN211177948U CN211177948U CN201922347450.9U CN201922347450U CN211177948U CN 211177948 U CN211177948 U CN 211177948U CN 201922347450 U CN201922347450 U CN 201922347450U CN 211177948 U CN211177948 U CN 211177948U
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Abstract
The utility model belongs to the technical field of refractory material, a developments high temperature furnace is fire-resistant prefabricated brick for kiln is proposed. The body of the proposed refractory prefabricated brick for the high-temperature dynamic furnace kiln is a rectangular hexahedron; the middle parts of the front side surface and the rear side surface of the body are respectively provided with an inclined platform which extends forwards and forms an angle of 45 degrees with the bottom; the sloping platforms form splicing platforms which are spliced with the front or rear end surfaces of the adjacent refractory precast bricks; the left side surface and the right side surface of the body are both provided with an inwards concave groove, and the grooves on the left side surface and the right side surface are not at the same height; the fireproof prefabricated bricks are spliced into a whole to form a longitudinal prefabricated brick, a plurality of grooves on the left side surface of the longitudinal prefabricated brick form a groove belt, and a plurality of grooves on the right side surface of the longitudinal prefabricated brick form a groove belt; and longitudinal pouring belts are filled in the left and right groove belts of two adjacent longitudinal precast bricks. The utility model provides high kiln life, improved the efficiency of construction, saved change maintenance duration, reduced workman intensity of labour.
Description
Technical Field
The utility model belongs to the technical field of refractory material, concretely relates to developments high temperature furnace is prefabricated brick of fire resistance for kiln.
Background
The dynamic high-temperature furnace kiln generally comprises furnace kiln equipment in the fields of chemical industry, mine, metallurgy, cement and petroleum, wherein the inner lining of the furnace kiln is built by adopting a mode of combining shaped refractory bricks or unshaped refractory materials or the combination of the shaped refractory bricks and the unshaped refractory materials; because the furnace kiln equipment dynamically operates at high temperature, the refractory bricks and the castable are influenced by weightlessness pressure caused by the operation of the kiln body and pressure generated by the deformation of the kiln body, and if the refractory bricks and the castable are not firmly combined and the refractory lining and the kiln wall steel shell are not firmly combined, the lining material is easy to fall off; on the other hand, the refractory prefabricated bricks are spliced together two by two, the splicing positions of the refractory bricks can generate gaps under the mechanical impact action of high temperature and materials on the lining working surface, and the materials and hot airflow which run at high temperature can permeate into the kiln wall steel shell along the gaps to cause the kiln wall steel shell to be deformed and damaged by heating. In order to prolong the service life of the lining material, technicians select a high-strength and high-wear-resistance lining material to improve the anti-falling and anti-wear performance of the refractory bricks for many years, and meanwhile, improvement and promotion are continuously carried out on the structural design of the lining material and the furnace and kiln building method. The refractory bricks and the castable are tightly combined to form a firm whole with the kiln wall steel shell, so that the problems that the inner lining is weightless and falls off and the inner lining and the steel shell are damaged due to material infiltration caused by the operation of the kiln are solved, and the tensile damage generated by the deformation difference among the kiln wall steel shell, the refractory bricks and the castable at high temperature is overcome.
SUMMERY OF THE UTILITY MODEL
The utility model provides a developments high temperature is fire-resistant prefabricated brick for stove makes its ability whole promotion stove inside lining intensity and firmness, promotes the unity of inside lining and kiln wall box hat, solves the material infiltration and causes the problem that inside lining and box hat damaged, extension stove life.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a refractory prefabricated brick for a high-temperature dynamic furnace kiln is characterized in that a body of the refractory prefabricated brick is a rectangular hexahedron; the middle parts of the front side surface and the rear side surface of the body are respectively provided with an inclined platform which extends forwards and forms an angle of 45 degrees with the bottom; the inclined platforms form splicing platforms which are spliced with the front or rear end surfaces of the adjacent refractory precast bricks; the left side surface and the right side surface of the body are both provided with an inwards concave groove, and the grooves on the left side surface and the right side surface are not at the same height; the method comprises the following steps that a plurality of refractory prefabricated bricks are spliced to form a longitudinal prefabricated brick, a plurality of grooves on the left side surface of the longitudinal prefabricated brick form a groove belt, and a plurality of grooves on the right side surface of the longitudinal prefabricated brick form a groove belt; filling longitudinal casting belts in the left and right groove belts of two adjacent longitudinal precast bricks, and casting the longitudinal casting belts into a whole; the bottom surface of the body is provided with an upward-concave rectangular groove.
The left side and the right side of the interior of the prefabricated brick body are respectively embedded with three rows of anchoring parts, namely a front row of anchoring parts, a middle row of anchoring parts and a rear row of anchoring parts, the left side and the right side of each row of anchoring parts correspond to each other in pairs, the anchoring parts corresponding to each other in pairs are not connected in the prefabricated brick body, and the lower end of each anchoring part extends out of the left side surface and the right.
The anchoring piece is Z-shaped.
The vertical height of the ramp is 1/10 the height of the body.
The grooves on the left side surface and the right side surface are trapezoidal grooves or semicircular grooves.
The utility model provides a pair of developments high temperature furnace is fire-resistant prefabricated brick for kiln adopts above-mentioned technical scheme, has following positive effect: firstly, a prefabricated brick four-side curved sealing structure is adopted, and comprises a front side curved sealing structure and a rear side curved sealing structure, and a left side curved sealing structure and a right side curved sealing structure, so that the problem that a kiln steel shell is deformed and damaged by heating because materials and hot air flow penetrate into an inner lining along a prefabricated brick splicing gap and a prefabricated brick and castable splicing gap is solved; secondly, the longitudinal prefabricated brick belts and the longitudinal pouring material belts are tightly combined into a whole by adopting trapezoidal or semicircular grooves at the left side and the right side of the prefabricated bricks, and the prefabricated bricks, the pouring materials and the kiln body steel shell are further connected into a firm whole by adopting anchoring pieces with special shapes, so that the overall strength and firmness of the lining material are greatly improved, and the problem of falling and damage of the lining due to weightlessness caused by the operation of the kiln is solved; thirdly, the problem of tensile damage caused by deformation difference among the kiln wall steel shell, the precast bricks and the castable is solved by adopting the modes of paving the heat insulation material at the bottom of the precast bricks and paving the heat insulation material in the block of the casting belt at high temperature. Adopt the utility model discloses the technique greatly improves kiln life, improves the efficiency of construction, sparingly changes maintenance duration, reduces workman intensity of labour, has played favorable guarantee for improving the quality, practicing thrift the cost.
Drawings
FIG. 1 is a schematic cross-sectional view of a kiln body
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is the front structural schematic diagram of the middle fire-resistant prefabricated brick of the utility model.
Fig. 4 is a schematic side view of the refractory prefabricated brick of the present invention.
Fig. 5 is a schematic structural diagram of the anchor according to the present invention.
Fig. 6 is a schematic view of the structure of the middle prefabricated brick belt of the present invention.
FIG. 7 is a schematic diagram of the masonry of the precast brick band and the pouring material band.
In the figure: 1. the casting furnace comprises a furnace body, 2 parts of refractory precast brick casting materials, 2-1 parts of trapezoidal grooves, 2-2 parts of inclined platforms, 2-3 parts of rectangular grooves, 3 parts of longitudinal casting belts, 4 parts of heat insulation materials, 5 parts of anchoring pieces, 5-1 parts of upper ends, 5-2 parts of middle parts, 5-3 parts of lower ends.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments;
referring to fig. 2-4, a prefabricated refractory brick for a high-temperature dynamic kiln, the prefabricated refractory brick has a rectangular hexahedron body with a size of 508 x 450 x 260 mm; the middle parts of the front side surface and the rear side surface of the body are respectively provided with an inclined platform 2-2 which extends forwards and forms an angle of 45 degrees with the bottom; the inclined platform 2-2 is positioned 145mm away from the upper plane of the prefabricated brick, and the vertical height is 16 mm; the 2-2 inclined platforms form splicing platforms which are spliced with the front or rear end surfaces of the adjacent refractory precast bricks; the left side surface and the right side surface of the body are both provided with an inwards-concave trapezoidal groove 2-1, and the trapezoidal notches 2-1 on the left side surface and the right side surface are not at the same height; the inner diameter of the outer opening of the trapezoidal groove is 50mm, and the inner diameter of the inner opening is 20 mm; the bottom surface of the body is provided with an upward concave rectangular groove 2-3. The size of the rectangular groove at the bottom of the prefabricated brick is 400 x 350 mm; the precast bricks are made of steel fiber high-strength wear-resistant castable by casting.
The left side and the right side of the interior of the body are respectively embedded with three rows of front, middle and rear anchoring parts 3, the left side and the right side of each row of the anchoring parts 3 correspond to each other in pairs, the anchoring parts corresponding to each other in pairs are not connected in the interior of the prefabricated brick body, the lower end of each anchoring part extends out of the left side and the right side of the prefabricated brick body, as shown in figure 5, each anchoring part is Z-shaped, each anchoring part comprises an upper end part 3-1, a middle part 3-2 and a lower end part 3-3, and each anchoring part is made of 304 stainless steel materials and has the diameter of.
The castable is steel fiber high-strength wear-resistant castable which is the same as the precast brick;
the heat insulation material 4 is a heat insulation fiber felt with a heat conductivity coefficient of 0.15 w/m.k (600 ℃).
Referring to fig. 7, a method for constructing a high-temperature dynamic kiln is described in detail, which comprises the following steps:
according to the method of combining the refractory precast bricks and the castable for masonry, the refractory precast bricks and the castable are masonry along the axis direction of the kiln body, and are longitudinally spaced for masonry and penetrate through the inner surface of the whole kiln body;
(1) firstly, building a refractory prefabricated brick 2: the left side surface and the right side surface of each prefabricated brick are consistent with the axial direction of the kiln body, the front side surface and the rear side surface of each prefabricated brick are spliced and built into a whole, and the inclined platforms 2-3 of two adjacent prefabricated bricks are butted to form a staggered curved surface seal;
(2) before each prefabricated brick is laid in the step (1), a fiber felt 4 is laid in the rectangular grooves 2-5 at the bottom of the prefabricated brick;
(3) after each longitudinal precast brick is built, welding an anchoring part 5, and welding lower anchoring part 5-3 of the left side and the right side of each precast brick, which extend out of the bottom, on the kiln body steel shell;
(4) the anchoring piece 5 pre-embedded in the precast brick needs to be pre-treated by a low-melting object and then pre-embedded;
(5) after the longitudinal precast brick is built, the trapezoidal grooves 2-1 on the left side surface of the precast brick spliced together front and back form a through groove belt along the longitudinal direction, similarly, the trapezoidal grooves 2-1 on the right side surface of the precast brick also form a through groove belt, and the groove belts on the left side and the right side are not on the same horizontal plane;
(6) after one longitudinal prefabricated brick is built, a second longitudinal prefabricated brick is built at a certain distance, and by analogy, the building of all the longitudinal prefabricated bricks and the welding of the anchoring parts are completed;
(7) the casting of the longitudinal casting belt 3 is then carried out: paving rectangular heat-insulating materials 4 at intervals in the middle of the two precast brick belts along the axial direction of the kiln body;
(8) a spacing zone is formed between two adjacent prefabricated brick zones which are built, casting materials can be directly cast in the spacing zone, a casting mold does not need to be built, cost is greatly saved, construction efficiency is improved, and labor intensity of workers is reduced;
(9) when the longitudinal pouring belt 3 is poured, the longitudinal pouring material enters the trapezoidal groove belts of the prefabricated bricks on the left side and the right side and extends into the prefabricated bricks to be tightly combined with the prefabricated bricks;
(10) the lower end parts of the anchoring pieces extending out from the bottoms of the left side and the right side of the longitudinal precast brick are welded on the kiln body steel shell and extend into the middle spacing band, and when the casting material is cast, the lower end parts of the anchoring pieces are embedded into the casting material.
(11) And after the pouring of one longitudinal pouring belt 3 is finished, the process is repeated until the pouring construction of all the pouring belts is finished.
The specific implementation effect is as follows: compared with the prior art, the construction time is shortened by half, the furnace drying time is shortened by 30-50%, and the service life of the furnace is prolonged by 1/3.
The technical scheme of the utility model is not limited to the restriction of above-mentioned specific embodiment, all according to the utility model discloses a technical scheme makes technical deformation, all falls into within the protection scope of the utility model.
Claims (5)
1. A refractory prefabricated brick for a high-temperature dynamic furnace kiln is characterized in that a body of the refractory prefabricated brick is a rectangular hexahedron; the middle parts of the front side surface and the rear side surface of the body are respectively provided with an inclined platform which extends forwards and forms an angle of 45 degrees with the bottom; the inclined platforms form splicing platforms which are spliced with the front or rear end surfaces of the adjacent refractory precast bricks; the left side surface and the right side surface of the body are both provided with an inwards concave groove, and the grooves on the left side surface and the right side surface are not at the same height; the method comprises the following steps that a plurality of refractory prefabricated bricks are spliced to form a longitudinal prefabricated brick, a plurality of grooves on the left side surface of the longitudinal prefabricated brick form a groove belt, and a plurality of grooves on the right side surface of the longitudinal prefabricated brick form a groove belt; filling longitudinal casting belts in the left and right groove belts of two adjacent longitudinal precast bricks, and casting the longitudinal casting belts into a whole; the bottom surface of the body is provided with an upward-concave rectangular groove.
2. The refractory precast brick for the high-temperature dynamic furnace kiln as claimed in claim 1, characterized in that: the left side and the right side of the interior of the prefabricated brick body are respectively embedded with three rows of anchoring parts, namely a front row of anchoring parts, a middle row of anchoring parts and a rear row of anchoring parts, the left side and the right side of each row of anchoring parts correspond to each other in pairs, the anchoring parts corresponding to each other in pairs are not connected in the prefabricated brick body, and the lower end of each anchoring part extends out of the left side surface and the right.
3. The refractory precast brick for the high-temperature dynamic furnace kiln as claimed in claim 2, characterized in that: the anchoring piece is Z-shaped.
4. The refractory precast brick for the high-temperature dynamic furnace kiln as claimed in claim 1, characterized in that: the vertical height of the ramp is 1/10 the height of the body.
5. The refractory precast brick for the high-temperature dynamic furnace kiln as claimed in claim 1, characterized in that: the grooves on the left side surface and the right side surface are trapezoidal grooves or semicircular grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922347450.9U CN211177948U (en) | 2019-12-24 | 2019-12-24 | Dynamic high-temperature furnace kiln is with fire-resistant prefabricated brick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922347450.9U CN211177948U (en) | 2019-12-24 | 2019-12-24 | Dynamic high-temperature furnace kiln is with fire-resistant prefabricated brick |
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| Publication Number | Publication Date |
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| CN211177948U true CN211177948U (en) | 2020-08-04 |
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| CN201922347450.9U Active CN211177948U (en) | 2019-12-24 | 2019-12-24 | Dynamic high-temperature furnace kiln is with fire-resistant prefabricated brick |
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| CN (1) | CN211177948U (en) |
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