Refractory brick prefabricated part for high-temperature kiln

Abstract

The refractory brick prefabricated part comprises a reinforcing steel plate, a steel structure frame, reinforcing steel bars and a refractory brick body, the reinforcing steel plate and the reinforcing steel bars are connected with the steel structure frame, and the refractory brick body wraps the steel structure frame and the reinforcing steel bars to form an integral structure after being formed by casting. The refractory brick prefabricated part is high in strength, stable in structure and capable of being hoisted through a hoisting part after being formed, the whole refractory brick prefabricated part is evenly stressed in the hoisting process, construction and installation are convenient, damage is not prone to being caused, a forklift transportation mode can be adopted, and convenience and safety are achieved. According to the refractory brick prefabricated part for the high-temperature kiln, the steel structure frame and the reinforcing steel bars are arranged in the refractory brick body for supporting, the overall high-temperature strength of a product is improved, the surrounding anti-collapse capacity of the first through hole and the second through hole of the product is improved, the whole refractory brick prefabricated part does not fall off and is safe and long in service life, and the service life of the part is guaranteed; therefore, the service life of the whole furnace lining refractory material is effectively prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to refractory manufacturing technical field, especially a kind of refractory brick precast for high temperature kiln. BACKGROUND

[0002] High-temperature smelting kiln is widely used in steel, non-ferrous metallurgy and refining field, and auxiliary lance or burner is often needed in smelting process to improve the smelting temperature in the furnace or to realize the above-mentioned purpose by blowing gas into the furnace. It is necessary to select suitable materials as the lining material for this special part in the lining of the kiln body structure. At present, the refractory bricks are generally used to realize the masonry of this structure, but the processing of special structure refractory bricks is difficult, and the overall service life of the whole refractory material is affected after assembly. At the same time, there is also a method of pouring in situ formwork, but the construction is more complicated in smelting site, and the manufacturing and maintenance process needs time, which affects the overall masonry efficiency, and the internal castable material peels off at high temperature, and the overall structure is easy to collapse at high temperature, which affects the smelting in the furnace or causes safety hazards.

[0003] Therefore, how to design and manufacture a new type of high-strength product with overall structure is a current problem to be solved. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a kind of refractory brick precast for high temperature kiln to solve the problems of the above-mentioned related technologies, improve the overall high-temperature strength of refractory brick precast, ensure the anti-collapse ability of refractory brick precast, prolong the service life of refractory brick precast, and improve the smelting safety factor of high-temperature smelting kiln.

[0005] To achieve the above-mentioned purpose, the utility model provides the following scheme:

[0006] The utility model provides a kind of refractory brick precast for high temperature kiln, comprising:

[0007] The reinforcing steel plate is provided with a lifting piece at the top, and the reinforcing steel plate has a first through hole;

[0008] The steel structure frame is connected with the reinforcing steel plate and located at the bottom of the reinforcing steel plate, and the steel structure frame is a frame structure;

[0009] The reinforcing steel bar is connected with the steel structure frame;

[0010] The refractory brick body is located at the bottom of the reinforcing steel plate and wraps the steel structure frame and the reinforcing steel bar, and the refractory brick body is made of castable material; The refractory brick body has a second through hole matched with the first through hole, and the second through hole is arranged opposite to the first through hole.

[0011] Preferably, the reinforcing steel plate is made of stainless steel plate with a thickness greater than 15 mm.

[0012] Preferably, the steel structure frame comprises transverse steel bars and longitudinal steel bars, the transverse steel bars form a rectangular structure, the longitudinal steel bars are arranged perpendicularly to the transverse steel bars, the second through hole is located in the rectangular structure formed by the transverse steel bars, and the longitudinal steel bars are arranged around the second through hole.

[0013] Preferably, a plurality of connecting steel bars are arranged between adjacent transverse steel bars and adjacent longitudinal steel bars, and the connecting steel bars are arranged in parallel.

[0014] Preferably, the reinforcing steel bars are arranged in parallel to the longitudinal steel bars, the number of the reinforcing steel bars is a plurality, and the reinforcing steel bars are arranged around the second through hole.

[0015] Preferably, the steel structure frame is made of steel bars with a diameter of 8-12 mm, the reinforcing steel bars are screw steel bars, and the reinforcing steel plate and the reinforcing steel bars are welded to the steel structure frame.

[0016] Preferably, the diameter of the second through hole gradually decreases in the direction from the reinforcing steel plate to the refractory brick body.

[0017] Preferably, the lifting piece comprises a lifting lug and a web plate, the lifting lug and the web plate are arranged perpendicularly to the reinforcing steel plate, and the web plate is perpendicular to the lifting lug.

[0018] Preferably, the two sides of the lifting lug are provided with the web plates, and the web plates are triangular plate structures.

[0019] The number of the lifting pieces is a plurality of groups.

[0020] Preferably, the refractory brick body is made of cement and corundum spinel bonded castable.

[0021] Compared with the related art, the high-temperature kiln refractory brick prefabricated part has the following technical effects: the high-temperature kiln refractory brick prefabricated part comprises a reinforcing steel plate, a steel structure frame, reinforcing steel bars and a refractory brick body, the top of the reinforcing steel plate is provided with a lifting piece, and the reinforcing steel plate has a first through hole; the steel structure frame is connected with the reinforcing steel plate and located at the bottom of the reinforcing steel plate, and the steel structure frame is a frame structure; the reinforcing steel bars are connected with the steel structure frame; the refractory brick body is located at the bottom of the reinforcing steel plate and wraps the steel structure frame and the reinforcing steel bars, and the refractory brick body is made of castable; the refractory brick body has a second through hole matched with the first through hole, and the second through hole is arranged opposite to the first through hole.

[0022] The high-temperature-kiln-resistant firebrick prefabricated part of the utility model, the reinforcing steel plate and the reinforcing steel bar are all connected with the steel structure frame, the firebrick body is integrally formed after being cast, the steel structure frame and the reinforcing steel bar are wrapped to form an overall structure, the high-temperature-kiln-resistant firebrick prefabricated part of the utility model is high in strength and stable in structure, can be hoisted after being formed, the overall stress of the high-temperature-kiln-resistant firebrick prefabricated part is uniform during hoisting, is convenient for construction and installation and is not prone to damage, and can also be transported by a forklift truck, which is convenient and safe. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or related technologies, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings.

[0024] Figure 1 The structure schematic view of the high-temperature-kiln-resistant firebrick prefabricated part disclosed by the embodiments of the utility model;

[0025] Figure 2 The sectional view schematic view of the high-temperature-kiln-resistant firebrick prefabricated part disclosed by the embodiments of the utility model in the front view direction;

[0026] Figure 3 The top view schematic view of the high-temperature-kiln-resistant firebrick prefabricated part disclosed by the embodiments of the utility model;

[0027] Figure 4 The sectional view schematic view of the high-temperature-kiln-resistant firebrick prefabricated part disclosed by the embodiments of the utility model in the side view direction;

[0028] Figure 5 The internal structure schematic view of the high-temperature-kiln-resistant firebrick prefabricated part disclosed by the embodiments of the utility model;

[0029] Figure 6 The installation schematic view of the high-temperature-kiln-resistant firebrick prefabricated part disclosed by the embodiments of the utility model in the high-temperature smelting kiln.

[0030] In the drawing: 100, high-temperature-kiln-resistant firebrick prefabricated part;

[0031] 1, reinforcing steel plate; 2, hanging piece; 3, first through hole; 4, steel structure frame; 5, reinforcing steel bar; 6, firebrick body; 7, second through hole; 8, transverse steel bar; 9, longitudinal steel bar; 10, connecting steel bar; 11, lifting lug; 12, rib plate. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] The present application provides a firebrick preform for high-temperature kiln, which solves the problems of the related art, improves the overall high-temperature strength of the firebrick preform, ensures the anti-collapse ability of the firebrick preform, prolongs the service life of the firebrick preform, and improves the smelting safety factor of the high-temperature smelting kiln.

[0034] In order to make the above-mentioned purposes, features and advantages of the present application more apparent, obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0035] Embodiment one

[0036] The present application provides a firebrick preform for high-temperature kiln, which solves the problems of the related art, improves the overall high-temperature strength of the firebrick preform, ensures the anti-collapse ability of the firebrick preform, prolongs the service life of the firebrick preform, and improves the smelting safety factor of the high-temperature smelting kiln. Figures 1-6 The present application provides a firebrick preform for high-temperature kiln, which solves the problems of the related art, improves the overall high-temperature strength of the firebrick preform, ensures the anti-collapse ability of the firebrick preform, prolongs the service life of the firebrick preform, and improves the smelting safety factor of the high-temperature smelting kiln.

[0037] The utility model discloses a high -temperature kiln is with refractory brick prefabricated part 100, reinforcing steel sheet 1 and reinforcing steel bar 5 all are connected with steel structure frame 4, and the refractory brick body 6 is wrapped steel structure frame 4 and reinforcing steel bar 5 after casting forming and forms integral structure, and the steel structure frame 4 adopts the frame structure and can enhance its connecting structure strength with the refractory brick body 6, the refractory brick prefabricated part of the utility model is high in strength and stable in structure, and can utilize the lifting piece 2 hoisting after forming, and the refractory brick prefabricated part is evenly stressed in the hoisting process, and the convenient construction installation is not easy to cause damage, also can adopt the forklift transport mode, convenient and safe.

[0038] In the embodiment, the reinforcing steel sheet 1 is made of stainless steel plate with a thickness greater than 15 mm, and the reinforcing steel sheet 1 is made of stainless steel plate with a thickness, which is beneficial to further enhance the structural strength of the refractory brick prefabricated part and ensure the high-temperature strength of the refractory brick prefabricated part.

[0039] The steel structure frame 4 includes transverse steel bars 8 and longitudinal steel bars 9, the transverse steel bars 8 form a rectangular structure, and the longitudinal steel bars 9 are perpendicular to the transverse steel bars 8, the steel structure frame 4 serves as the main support framework inside the refractory brick body 6, which ensures the structural strength of the refractory brick prefabricated part, the second through hole 7 is located in the rectangular structure formed by the transverse steel bars 8, and the longitudinal steel bars 9 are arranged around the second through hole 7 to ensure the anti-collapse ability around the second through hole 7. It should be noted that, in the embodiment, the refractory brick prefabricated part has a cuboid structure, which is convenient for subsequent installation in the high-temperature smelting furnace, and when the refractory brick prefabricated part 100 of the utility model is applied to other working conditions, the specific shape can be adjusted according to actual needs, the shape formed by the transverse steel bars 8 can also be adaptively changed, and the specific structure of the steel structure frame 4 is adjusted according to the specific shape of the refractory brick prefabricated part, which improves the flexible adaptability of the refractory brick prefabricated part. It should be noted that the refractory brick prefabricated part has a cuboid structure, which means that the side surface of the refractory brick body 6 of the refractory brick prefabricated part can be inclined to facilitate demolding during prefabricated production, which ensures smooth demolding and improves the product quality and production efficiency of the refractory brick prefabricated part.

[0040] In the specific embodiment, a plurality of connecting steel bars 10 are arranged between the adjacent transverse steel bars 8 and the adjacent longitudinal steel bars 9, the connecting steel bars 10 are arranged in parallel, the connecting steel bars 10 connect the adjacent two transverse steel bars 8 and longitudinal steel bars 9, form a ladder-like structure, further enhance the structural strength of the steel structure frame 4, and ensure the overall firmness of the steel structure frame 4 and the refractory brick body 6.

[0041] Specifically, the reinforcing steel bars 5 are arranged in parallel to the longitudinal steel bars 9, the number of the reinforcing steel bars 5 is a plurality, and the reinforcing steel bars 5 are arranged around the second through hole 7, so as to further enhance the structural strength of the refractory brick prefabricated part. In other specific embodiments of the present application, reinforcing steel bars 5 parallel to the transverse steel bars 8 can also be arranged, that is, reinforcing steel bars 5 are arranged in the direction parallel to the transverse steel bars 8 and the longitudinal steel bars 9. In actual application, the specifications of the reinforcing steel bars 5 can be selected according to actual working conditions.

[0042] In the specific embodiment, the steel structure frame 4 is welded by stainless steel bars with a diameter of 8mm-12mm, the reinforcing steel bars 5 can adopt threaded stainless steel bars, so as to enhance the connection structural strength with the steel structure frame 4, and enhance the friction between the reinforcing steel bars 5 and the castable, and effectively enhance the support to the inside of the refractory brick body 6. The diameter of the reinforcing steel bars 5 is 5mm, and in actual application, the specifications of the steel structure frame 4 and the reinforcing steel bars 5 can be adjusted according to actual working conditions. The reinforcing steel plate 1 and the reinforcing steel bars 5 are welded to be connected with the steel structure frame 4, so as to ensure the structural integrity, and ensure the overall structural strength of the refractory brick prefabricated part after the refractory brick prefabricated body is cast and formed. It should be noted that in actual application, the transverse steel bars 8, the longitudinal steel bars 9, the reinforcing steel bars 5 and the connecting steel bars 10 can be arranged in the form of equal interval distribution, so as to further improve the structural stability of the refractory brick prefabricated part.

[0043] It should be noted that in the specific embodiment, the diameter of the second through hole 7 gradually decreases in the direction from the reinforcing steel plate 1 to the refractory brick body 6, so as to reduce the heat loss of the refractory brick prefabricated part, and enhance the heat preservation effect of the refractory brick prefabricated part while ensuring the structural strength of the refractory brick prefabricated part.

[0044] More specifically, the lifting part 2 includes a lifting lug 11 and a web plate 12, the lifting lug 11 and the web plate 12 are arranged perpendicularly to the reinforcing steel plate 1, the lifting lug 11 has a lifting hole, the lifting lug 11 can be used to realize the lifting of the refractory brick prefabricated part, improve the operation convenience, and the web plate 12 is perpendicular to the lifting lug 11, so as to ensure the connection structural strength of the lifting lug 11 and the reinforcing steel plate 1, and further ensure the lifting stability and reliability.

[0045] In the specific embodiment, the lug 11 is provided with a rib plate 12 on both sides, further enhancing the connection reliability of the lug 11 and the reinforcing steel plate 1, and the lug 11 and the rib plate 12 can be connected with the reinforcing steel plate 1 by welding, enhancing the overall structural integrity and firmness, and the rib plate 12 is in a triangular plate structure, ensuring the connection strength while avoiding affecting the hoisting of the lug 11.

[0046] In actual application, the number of the hangers 2 can be set to multiple groups to improve the stress uniformity of the refractory brick preform during hoisting. The number and distribution of the hangers 2 can be adjusted according to actual working conditions, and in the specific embodiment, four groups of hangers 2 are provided, which form a rectangle to ensure the overall stability of the reinforcing steel plate 1, the steel structure frame 4 and the refractory brick body 6 during hoisting of the refractory brick preform, and the stress is uniform during hoisting of the refractory brick preform, and the structure is stable and not easy to be damaged.

[0047] It should be further emphasized that the refractory brick body 6 is made of cement and micro-powder combined with corundum spinel castable, and the castable tightly wraps the steel structure frame 4, and the top is attached to the reinforcing steel plate 1, ensuring the overall structural integrity of the refractory brick preform.

[0048] When manufacturing the refractory brick preform 100 for high-temperature kiln of the present embodiment, the reinforcing steel bars 5 are welded on the steel structure frame 4, the reinforcing steel plate 1 is welded with the steel structure frame 4 and the hangers 2, and then the reinforcing steel plate 1, the steel structure frame 4 and the reinforcing steel bars 5 after welding are assembled with the preform mold, the cement and micro-powder combined with corundum spinel castable is poured into the preform mold, and the refractory brick body 6 is formed by vibrating casting, and finally the refractory brick preform with the required shape and structure is obtained after the castable is hardened, demolded and dried.

[0049] During the manufacturing process, the castable is placed for more than 24 hours after pouring for demolding, and dried for more than 3 days for curing, and forced dried for more than 3 days to ensure the overall strength.

[0050] Embodiment Two

[0051] The present embodiment provides a high-temperature smelting kiln using the refractory brick preform 100 for high-temperature kiln of embodiment one, which can be specifically referred to Figure 6 When installing the refractory preform of embodiment one, hoisting method can be used to evenly stress the refractory brick preform as a whole, or forklift transportation method can be used to facilitate installation and construction. The refractory preform is directly cast in the mold using cement and micro-powder combined with corundum spinel castable, and the castable is internally supported by the steel structure frame 4 and the reinforcing steel bars 5, which improves the overall high-temperature strength of the product and the anti-collapse ability around the through hole of the product, and the whole does not fall off, is safe and has high service life, ensuring the service life of the part, thereby effectively prolonging the service life of the overall furnace lining refractory material.

[0052] The principle and implementation mode of the utility model are described by applying specific examples, and the above embodiment is only used for helping to understand the method and core idea of the utility model; meanwhile, for the general technical personnel in the field, the specific implementation mode and application range will be changed according to the idea of the utility model. In conclusion, the content of the specification should not be understood as the limitation of the utility model.

Claims

1. A refractory brick preform for high temperature kilns, characterized in that, The utility model relates to a reinforced fireproof brick, which comprises a reinforced steel plate, a steel structure frame, a reinforced steel bar and a refractory brick body. The reinforced steel plate is provided with a lifting piece at the top thereof and has a first through hole. The steel structure frame is connected with the reinforced steel plate and located at the bottom of the reinforced steel plate. The steel structure frame is in a frame structure. The reinforced steel bar is connected with the steel structure frame.

2. A refractory brick preform for high temperature kilns according to claim 1, characterized in that: The refractory brick body is located at the bottom of the reinforced steel plate and wraps the steel structure frame and the reinforced steel bar.

3. A high temperature kiln refractory brick preform according to claim 1, characterized in that: The refractory brick body is made of castable and has a second through hole which matches the first through hole and is arranged opposite to the first through hole.

4. A refractory brick preform for high temperature kilns according to claim 3, characterized in that: The reinforced steel plate is made of stainless steel plate with a thickness greater than 15 mm.

5. A refractory brick preform for high temperature kilns according to claim 3, characterized in that: The steel structure frame comprises transverse steel bars and longitudinal steel bars.

6. A refractory brick preform for high temperature kilns according to claim 5, characterized in that: The transverse steel bars form a rectangular structure.

7. A high temperature kiln refractory brick preform according to claim 1, characterized in that: The longitudinal steel bars are arranged perpendicularly to the transverse steel bars.

8. A refractory brick preform for high temperature kilns according to claim 1, characterized in that: The second through hole is located in the rectangular structure formed by the transverse steel bars.

9. A refractory brick preform for high temperature kilns according to claim 8, characterized in that: The longitudinal steel bars surround the second through hole. The adjacent transverse steel bars and the adjacent longitudinal steel bars are further provided with a plurality of connecting steel bars which are arranged in parallel.

10. The refractory brick preform for high temperature kilns according to claim 1, characterized in that: The reinforced steel bar is arranged in parallel to the longitudinal steel bar. The number of the reinforced steel bars is a plurality. The reinforced steel bars surround the second through hole. The steel structure frame is made of steel bars with a diameter of 8-12 mm. The reinforced steel bar is a threaded steel bar. The reinforced steel plate and the reinforced steel bar are both welded to the steel structure frame. The diameter of the second through hole gradually decreases in the direction from the reinforced steel plate to the refractory brick body. The lifting piece comprises a lifting lug and a web plate. The lifting lug and the web plate are both arranged perpendicularly to the reinforced steel plate. The web plate is perpendicular to the lifting lug. The web plate is triangular plate structure. The number of the lifting pieces is a plurality. The refractory brick body is made of cement and micro-powder combined with corundum spinel castable.

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