Ladle lining refractory brick and method of producing the same

Abstract

The application relates to the technical field of fire-resistant bricks, and discloses a ladle lining fire-resistant brick and a production method thereof, which further strengthens the connection between adjacent bricks in the same horizontal height and the mutual connection effect between two adjacent layers of bricks, and comprises a brick body and a brick, the brick body comprises a lower brick body, a middle brick body and an upper brick body, the right end of the lower brick body is fixedly connected with the left end of the middle brick body, the right end of the middle brick body is fixedly connected with the left end of the upper brick body, the size and shape of the lower brick body, the middle brick body and the upper brick body are the same, the connecting surface between the right end of the lower brick body and the left end of the middle brick body accounts for half of the right end surface of the lower brick body, the connecting surface between the left end of the middle brick body and the right end of the lower brick body accounts for half of the left end surface of the middle brick body, the connecting surface between the right end of the middle brick body and the left end of the upper brick body accounts for half of the right end surface of the middle brick body, the connecting surface between the left end of the upper brick body and the right end of the middle brick body accounts for half of the left end surface of the upper brick body, and the lower brick body, the middle brick body and the upper brick body are fixedly connected with positioning protrusions.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of firebrick, in particular to a ladle lining firebrick and a production method thereof. BACKGROUND

[0002] It is well known that the ladle, namely the steel ladle, is mainly used in a steel mill or a foundry to receive molten steel and perform pouring work before a flat furnace, an electric furnace or a converter. In order to improve the effect of adapting to high temperature of the ladle, the interior of the ladle usually needs to be lined with firebricks, and the joints are embedded with refractory mortar.

[0003] According to the search, a kind of firebrick and ladle lining is disclosed in Chinese patent CN216607213U published on May 27, 2022, which is roughly described as including brick body, the brick body includes first arc surface, second arc surface, first bearing surface, second bearing surface, first connecting surface and second connecting surface, first arc surface and second arc surface are oppositely arranged, first arc surface is inwardly concave circular arc surface, second arc surface is outwardly convex circular arc surface, first arc surface and second arc surface are coaxially arranged, the first connecting surface of one brick body is in contact with the second connecting surface of another brick body, the shape and size of first bearing surface and second bearing surface are same, the first connecting surface of brick body is provided with several butt blocks, the second connecting surface of brick body is provided with butt groove, the butt block of one brick body can be inserted into the butt groove of another brick body, which can improve the close contact effect of adjacent brick bodies when the firebricks are stacked into a cylindrical shape.

[0004] Although the above-mentioned prior art can be used as firebricks to form a ladle lining inside the ladle, the brick body structure can only realize the mutual ring connection of the brick bodies at the same horizontal height, and the mutual connection effect between the two layers of brick bodies above and below is poor, and the connection reliability of the mutual ring connection of the brick bodies at the same horizontal height needs to be further improved. SUMMARY

[0005] (I) Technical problems solved

[0006] In view of the deficiencies of the prior art, the present application provides a ladle lining firebrick and a production method thereof, which further strengthens the connection between the adjacent brick bodies at the same horizontal height, and also strengthens the mutual connection effect between the two layers of brick bodies above and below.

[0007] (II) Technical solutions

[0008] To achieve the above object, the present application provides the following technical scheme: A ladle lining refractory brick, comprising a brick body, further comprising a brick block, the brick body comprises a lower brick body, a middle brick body and an upper brick body, the right end of the lower brick body is fixedly connected with the left end of the middle brick body, the right end of the middle brick body is fixedly connected with the left end of the upper brick body, and the size and shape of the lower brick body, the middle brick body and the upper brick body are all the same, the connecting surface of the right end of the lower brick body and the left end of the middle brick body accounts for half of the right end surface of the lower brick body, the connecting surface of the left end of the middle brick body and the right end of the lower brick body accounts for half of the left end surface of the middle brick body, the connecting surface of the right end of the middle brick body and the left end of the upper brick body accounts for half of the right end surface of the middle brick body, the connecting surface of the left end of the upper brick body and the right end of the middle brick body accounts for half of the left end surface of the upper brick body, the top end of the lower brick body, the top end of the middle brick body and the top end of the upper brick body are all fixedly connected with positioning protrusions, the bottom end of the lower brick body, the bottom end of the middle brick body and the bottom end of the upper brick body are all provided with positioning grooves, the height of the brick block is half of the height of the middle brick body, the horizontal section of the brick block is the same as the horizontal section of the middle brick body, the bottom end of the brick block is provided with a positioning auxiliary groove, and the positioning auxiliary groove and the positioning groove are matched with the positioning protrusion.

[0009] A ladle lining refractory brick and a production method thereof, comprising the following steps:

[0010] S1, first select matched pulverizer, mixer, wet grinder, hydraulic machine, drying room and kiln;

[0011] S2, then select silica, bauxite and forged coke raw materials, crush and pulverize the above raw materials respectively through the pulverizer to form powder production raw materials meeting the requirements;

[0012] S3, then select corresponding amounts of silica powder raw materials, bauxite powder raw materials and forged coke powder raw materials according to the proportion, sequentially put the above raw materials into the mixer for mixing to form mixed raw materials, and put the mixed raw materials into the wet grinder for mixing and kneading in the wet grinder;

[0013] S4, then fill the mixed raw materials into the refractory brick mold, and press and form the mixed raw materials into a brick blank through the hydraulic machine, wherein the brick blank comprises a brick blank of a brick body and a brick blank of a brick block, and the refractory brick mold comprises a brick body mold and a brick block mold;

[0014] S5, then stack the pressed brick blank into a disc and put it into the drying room for drying;

[0015] S6, transport the dried brick blank out of the drying room and into the kiln for firing;

[0016] S7, after the firing is completed, the fired refractory brick is removed from the kiln, completely cooled, and then subjected to sampling inspection, re-stacked and packaged to form a finished product of the refractory brick.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the present application provides a ladle lining refractory brick and a production method thereof, and has the following beneficial effects:

[0019] 1. In the present application, through the cooperation of the lower brick body, the middle brick body and the upper brick body, a brick body structure is formed, and the mutual overlapping structure between multiple brick bodies when the inside of the ladle is built is more reliable, further strengthening the connection between adjacent brick bodies at the same horizontal height.

[0020] 2. In the present application, through the design of the positioning protrusion and the positioning auxiliary groove, the brick bodies overlapping up and down can be mutually positioned and assisted, and the mutual connection effect between the two layers of brick bodies adjacent up and down is also strengthened.

[0021] 3. In the present application, through the design of the brick block, it is convenient to supplement the edge of the gap formed by the brick body when multiple brick bodies are built, and the practicability is good. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a schematic diagram of the three-dimensional structure of the brick body of the present application;

[0023] Figure 2 is a schematic diagram of the three-dimensional structure of the brick body of the present application from another angle;

[0024] Figure 3 is a schematic diagram of the three-dimensional structure of the brick block of the present application;

[0025] Figure 4 is a schematic diagram of the three-dimensional structure of the brick block of the present application from the bottom;

[0026] Figure 5 is a schematic diagram of the three-dimensional structure of a building method of multiple brick bodies of the present application;

[0027] Figure 6 is a schematic diagram of the three-dimensional structure of a building method of multiple brick bodies and multiple brick blocks of the present application.

[0028] In the figure: 1, lower brick body; 2, middle brick body; 3, upper brick body; 4, brick block; 5, positioning protrusion; 6, positioning groove; 7, positioning auxiliary groove. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a 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.

[0030] EMBODIMENT

[0031] Please refer to Figures 1-6 A ladle lining refractory brick, comprising a brick body, further comprising a brick 4, the brick body comprises a lower brick body 1, a middle brick body 2 and an upper brick body 3, the right end of the lower brick body 1 is fixedly connected with the left end of the middle brick body 2, the right end of the middle brick body 2 is fixedly connected with the left end of the upper brick body 3, and the size and shape of the lower brick body 1, the middle brick body 2 and the upper brick body 3 are the same, the connecting surface of the right end of the lower brick body 1 and the left end of the middle brick body 2 accounts for half of the right end surface of the lower brick body 1, the connecting surface of the left end of the middle brick body 2 and the right end of the lower brick body 1 accounts for half of the left end surface of the middle brick body 2, the connecting surface of the right end of the middle brick body 2 and the left end of the upper brick body 3 accounts for half of the right end surface of the middle brick body 2, and the connecting surface of the left end of the upper brick body 3 and the right end of the middle brick body 2 accounts for half of the left end surface of the upper brick body 3, through the cooperation of the lower brick body 1, the middle brick body 2 and the upper brick body 3, a brick body structure is formed, the mutual overlapping structure between multiple bricks during the bricklaying of the inner part of the ladle by the brick body structure is more reliable, and the connection between adjacent bricks at the same horizontal height is further strengthened, the top end of the lower brick body 1, the top end of the middle brick body 2 and the top end of the upper brick body 3 are all fixedly connected with positioning protrusions 5, the bottom end of the lower brick body 1, the bottom end of the middle brick body 2 and the bottom end of the upper brick body 3 are all provided with positioning recesses 6, through the design of the positioning protrusions 5 and the positioning auxiliary recesses 7, the upper and lower overlapping bricks can be mutually positioned, and the mutual connection effect between the upper and lower adjacent two layers of bricks is also strengthened, the height of the brick 4 is half of the height of the middle brick body 2, the horizontal section of the brick 4 is the same as the horizontal section of the middle brick body 2, the bottom end of the brick 4 is provided with a positioning auxiliary recess 7, the positioning auxiliary recess 7 and the positioning recess 6 are matched with the positioning protrusion 5, through the design of the brick 4, the gap formed by the brick body during the bricklaying of multiple bricks can be supplemented and edge sealed, and the practicability is good.

[0032] The application discloses a ladle lining refractory brick and a production method thereof, and comprises the following steps: firstly, selecting matched crushing machines, mixers, wet mills, hydraulic machines, drying houses and kilns; then, selecting silica stone, bauxite and forged coke as raw materials; crushing and pulverizing the raw materials to form powder-shaped production raw materials; then, selecting corresponding amounts of silica stone powder raw materials, bauxite powder raw materials and forged coke powder raw materials according to a proportioning scheme; sequentially placing the raw materials into a mixer to mix the raw materials and form mixed raw materials; placing the mixed raw materials into a wet mill to mix and mill the mixed raw materials; then, placing the mixed raw materials into a refractory brick mold to press and form the mixed raw materials into a brick blank, wherein the brick blank comprises a brick blank of a brick body and a brick blank of a brick block 4, the refractory brick mold comprises a brick body mold and a brick block 4 mold; then, stacking the pressed brick blank into a tray, placing the tray into a drying house to dry the brick blank, taking the dried brick blank out of the drying house, placing the brick blank into a kiln to bake the brick blank, taking the baked refractory brick out of the kiln, completely cooling the baked refractory brick, sampling and testing the baked refractory brick, and then re-stacking and packaging the refractory brick to form a finished product.

[0033] The crushing machines, mixers, wet mills, hydraulic machines, drying houses and kilns in the embodiment are conventional devices known by those skilled in the art and can be purchased on the market or customized according to actual needs; the application only uses the devices and does not improve the structures and functions of the devices; the setting mode, installation mode and electrical connection mode of the devices can be adjusted and operated according to the requirements of the instruction manual of the devices, and thus, the devices will not be described here in detail.

[0034] In summary, the production method of the ladle lining refractory brick is as follows: firstly, selecting matched crusher, mixer, wet grinder, hydraulic machine, drying room and kiln, then selecting sillimanite, bauxite and forged coke raw materials, crushing and pulverizing the above raw materials respectively through the crusher to form the required powder production, then selecting the corresponding amount of sillimanite powder, bauxite powder and forged coke powder according to the proportion, placing the above raw materials into the mixer in sequence for mixing to form mixed raw materials, and placing the mixed raw materials into the wet grinder for mixing, then filling the mixed raw materials into the refractory brick mold for pressing forming by the hydraulic machine to form the green brick of the refractory brick, wherein the green brick includes the green brick of the brick body and the green brick of the brick block 4, the refractory brick mold includes the brick body mold and the brick block 4 mold, then stacking the pressed green bricks into a tray and placing them into the drying room for drying, transporting the dried green bricks out of the drying room, then transporting them into the kiln for firing, removing the fired refractory bricks from the kiln after firing, completely cooling them, then sampling and re-stacking and packaging to form the finished refractory bricks. The refractory bricks are laid in the ladle in the following way: firstly, cleaning the ladle, then laying a layer of brick body in the ladle, laying the brick block 4 under the middle brick 2 during the laying process, then laying the brick body clockwise until the whole ladle is paved, and only the bottom end of the transfer body in the brick body in the lowest layer is padded with the brick block 4 during the laying process, then laying the brick body of each layer into the gap in the lower layer to form the concave-convex occlusion, and the gap in the uppermost layer is also filled with the brick block 4 to form the whole laying opening.

[0035] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A ladle lining refractory brick comprising a brick body, characterized by, Also include the brick (4), the brick body includes lower brick body (1), middle brick body (2) and upper brick body (3), the right end of the lower brick body (1) is fixedly connected with the left end of the middle brick body (2), the right end of the middle brick body (2) is fixedly connected with the left end of the upper brick body (3), and the size and shape of the lower brick body (1), the middle brick body (2) and the upper brick body (3) are same, the connecting surface of the right end of the lower brick body (1) and the left end of the middle brick body (2) accounts for half of the right end surface of the lower brick body (1), the connecting surface of the left end of the middle brick body (2) and the right end of the lower brick body (1) accounts for half of the left end surface of the middle brick body (2), the connecting surface of the right end of the middle brick body (2) and the left end of the upper brick body (3) accounts for half of the right end surface of the middle brick body (2), the connecting surface of the left end of the upper brick body (3) and the right end of the middle brick body (2) accounts for half of the left end surface of the upper brick body (3), the top end of the lower brick body (1), the top end of the middle brick body (2) and the top end of the upper brick body (3) are fixedly connected with the positioning protrusion (5), the bottom end of the lower brick body (1), the bottom end of the middle brick body (2) and the bottom end of the upper brick body (3) are provided with the positioning recess (6), the height of the brick (4) is half of the height of the middle brick body (2), the horizontal section of the brick (4) is same with the horizontal section of the middle brick body (2), the bottom end of the brick (4) is provided with the positioning auxiliary recess (7), the positioning auxiliary recess (7) and the positioning recess (6) are matched with the positioning protrusion (5).

2. A ladle lining refractory brick and a method for producing the same, characterized by, The ladle lining refractory brick according to claim 1 is used, comprising the following steps: S1, first select the matching crusher, mixer, wet mill, hydraulic machine, drying room and kiln; S2, then select the raw materials of silica, bauxite and forged coke, pass the above raw materials through crushing and pulverizing respectively to form the powder production raw materials meeting the requirements through the crusher; S3, then select the corresponding amount of silica powder raw materials, bauxite powder raw materials and forged coke powder raw materials according to the proportion, sequentially place the above raw materials into the mixer to mix, form the mixed raw materials, and place the mixed raw materials into the wet mill to mix in the wet mill; S4, then fill the mixed raw materials into the refractory brick mold, and press and form the green brick of the refractory brick through the hydraulic machine, wherein the green brick includes the green brick of the brick body and the green brick of the brick (4), and the refractory brick mold includes the brick body mold and the brick mold; S5, then stack the green bricks after the pressing into a tray and place them into the drying room for drying; S6, transport the green bricks after drying in the drying room out, and then into the kiln for firing; S7, the fired refractory bricks are removed from the kiln after firing, completely cooled, and then subjected to sampling inspection, re-stacked and packaged to form the finished refractory bricks.

Images