Plate sheet combined type dispersion type air brick

Abstract

The utility model discloses a sheet bar combined type dispersion type air brick which comprises a steel shell, a base, a dispersion block, sheet bars, castable, a bottom plate and a tail pipe, the steel shell is of a conical cylindrical structure; the base is arranged in the center of the large-diameter end in the steel shell, the dispersion block and the sheet bar are arranged in a square groove of the base, and the steel shell is filled with the castable around the base and the sheet bar; a gap is formed between the bottom plate and the end face where the base and the castable are located to form an air chamber; the tail pipe is communicated with the air chamber and penetrates through the center of the bottom plate. The utility model has the advantages of simple structure and convenience in processing, solves the problems that the sheet is easy to permeate steel and the dispersion block is not erosion-resistant, and prolongs the service life.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgy, in particular to a plate-piece combined diffused air-permeable brick. Background Art

[0002] Air bricks are important functional air permeable components in the metallurgical industry. In order to meet the increasingly harsh smelting environment, different types of air bricks have been developed. The more common ones are slit type, diffuse type, and plate type air bricks. Among them, the slit type is the most common, and its ventilation volume design is easy to flexibly adjust. The disadvantage is that it is easy to break and block the air permeable channel. The diffuse type air brick is not easy to block the air permeable channel, but its corrosion resistance is not as good as the slit brick. The plate type air brick is not easy to break, but it is easy to block the air permeable channel. The three common types of air bricks have their own advantages and disadvantages, and cannot solve the problems of permeability, faults, and blockage of air channels at the same time. Summary of the invention

[0003] The utility model aims to overcome the shortcomings of the prior art and provide a plate-piece combined diffused-type air-permeable brick to solve the problems of easy steel infiltration of the plate and poor corrosion resistance of the diffused block.

[0004] The technical solution adopted by the utility model is:

[0005] A plate-piece combined diffused air-permeable brick comprises a steel shell, a base, a diffused block, a plate, a castable protective layer, a bottom plate and a tail pipe;

[0006] The steel shell is a conical cylindrical structure; the base is a truncated cone structure, the base is arranged at the center of the large diameter end in the steel shell, a rectangular installation groove is arranged at the center of the upper end surface of the base, and air permeable slits penetrating the base are evenly arranged in the installation groove; the diffusion block is a columnar structure with a rectangular cross-section, and plates are arranged on the four sides of the diffusion block in pairs, and air ducts are arranged on the inner side surfaces where the plates and the diffusion blocks are in contact, the diffusion blocks and the plates are arranged in the installation grooves of the base, and the upper ends are arranged flush with the upper end surface of the steel shell; the castable protective layer is filled and arranged in the steel shell around the base and the plates; the lower end surface of the castable protective layer is arranged flush with the lower end surface of the base; the bottom plate is a circular plate matching the size of the large diameter end of the steel shell, and a gap is reserved between the bottom plate and the base and the lower end surface of the castable protective layer, and the gap is an air chamber connected to the air permeable slit of the base; the tail pipe is connected to the air chamber and is arranged through the center of the bottom plate.

[0007] Specifically, the air-permeable slits on the base are arranged in two rows; and positioning grooves are provided on the circumference of the outer edge of the base.

[0008] Specifically, the length and width of the cross-sectional rectangle of the dispersion block are set based on the following principles: the width is equal to the length minus twice the thickness of the plate, and the plate width is equal to the length of the cross-sectional rectangle of the dispersion block.

[0009] Specifically, grooves are provided on the lower side edge of the plate and the lower surface of the diffusion block to facilitate the gas in the air permeable slit of the base to enter the airway inside the plate and the diffusion block.

[0010] Specifically, a support member is arranged between the base and the bottom plate in the air chamber.

[0011] Due to the adoption of the above-mentioned technical solution, the utility model has the following advantages:

[0012] The utility model has the advantages of simple structure, convenient processing, solving the problems of easy steel infiltration of plates and weak corrosion resistance of dispersion blocks, good air permeability and prolonged service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a cutaway schematic diagram of the utility model.

[0014] Figure 2 It is a structural schematic diagram of a base of the utility model.

[0015] Figure 3 It is a structural schematic diagram of the plate of the utility model.

[0016] Figure 4 It is a schematic diagram of the diffusion block of the utility model.

[0017] Figure 5 It is a sectional schematic diagram of the utility model.

[0018] In the figure: 1- steel shell, 2- base, 21- air permeable slit, 22- positioning groove, 3- diffusion block, 4- plate, 41- air channel, 5- casting material protective layer, 6- bottom plate, 7- tail pipe, 8- air chamber. DETAILED DESCRIPTION

[0019] The present invention is further explained below in conjunction with the accompanying drawings and embodiments, which should not be used to limit the protection scope of the present invention. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0020] Combined with Figure 1-5 A plate-4 combined diffused air-permeable brick comprises a steel shell 1, a base 2, a diffused block 3, a plate 4, a castable protective layer 5, a bottom plate 6 and a tail pipe 7.

[0021] The steel shell 1 is a conical cylindrical structure; the base 2 is a truncated cone structure, the base 2 is arranged at the center of the large diameter end inside the steel shell 1, a rectangular mounting groove is arranged at the center of the upper end surface of the base 2, and air slits 21 penetrating the base 2 are evenly arranged in the mounting groove. The air slits 21 are arranged in two rows, five in one row, and a positioning groove 22 is arranged on the outer edge circumference of the base 2.

[0022] The diffusion block 3 is a columnar structure with a rectangular cross-section. The plates 4 are arranged in pairs on the four sides of the diffusion block 3. An air duct 41 is provided on the inner side of the plate 4 and the diffusion block 3. The diffusion block 3 and the plate 4 are arranged in the installation groove of the base 2. The upper ends are arranged flush with the upper end surface of the steel shell 1. The width of the rectangle of the cross-section of the diffusion block 3 is equal to the length minus twice the thickness of the plate 4, and the width of the plate 4 is equal to the length of the rectangle of the cross-section of the diffusion block 3; grooves are provided on the side edges of the lower ends of the plate 4 and on the lower end surface of the diffusion block 3; it is convenient for the gas in the air permeable slit 21 of the base 2 to enter the air duct 41 inside the plate 4 and the diffusion block 3.

[0023] A castable protective layer 5 is filled and arranged in the steel shell 1 around the base 2 and the plate 4; the lower end surface of the castable protective layer 5 is arranged flush with the lower end surface of the base 2; the bottom plate 6 is a circular plate matching the size of the large diameter end of the steel shell 1, and a gap is reserved between the bottom plate 6 and the base 2 and the lower end surface of the castable protective layer 5, and the gap is an air chamber 8 connected to the air permeable slit 21 of the base 2; the tail pipe 7 is connected to the air chamber 8 and penetrates the center of the bottom plate 6; a support is arranged in the air chamber 8 between the base 2 and the bottom plate 6.

[0024] When in use, the height of the air chamber 8 is 4-10 mm. The inert gas enters the air chamber 8 from the tail pipe 7, enters the dispersion block 3 and the groove at the lower end of the plate 4 through the air permeable slit 21 on the base 2, and then enters the ladle containing molten steel along the air channel 41 on the inner wall of the plate 4 and the dispersion block 3. The plate 4 surrounds the dispersion block 3 to strengthen the strength of the dispersion block 3.

[0025] The parts not described in detail in this utility model are prior art.

[0026] The embodiments selected in this article for the purpose of disclosing the invention of the utility model are currently considered to be suitable, but it should be understood that the utility model is intended to include all changes and improvements of the embodiments that belong to the scope of the present concept and utility model.

Claims

1. A plate-combined diffused air-permeable brick, characterized in that: It includes steel shell, base, dispersion block, plate, castable protective layer, bottom plate and tail pipe; The steel shell is a conical cylindrical structure; the base is a truncated cone structure, the base is arranged at the center of the large diameter end in the steel shell, a rectangular installation groove is arranged at the center of the upper end surface of the base, and air permeable slits penetrating the base are evenly arranged in the installation groove; the diffusion block is a columnar structure with a rectangular cross-section, and plates are arranged on the four sides of the diffusion block in pairs, and air ducts are arranged on the inner side surfaces where the plates and the diffusion blocks are in contact, the diffusion blocks and the plates are arranged in the installation grooves of the base, and the upper ends are arranged flush with the upper end surface of the steel shell; the castable protective layer is filled and arranged in the steel shell around the base and the plates; the lower end surface of the castable protective layer is arranged flush with the lower end surface of the base; the bottom plate is a circular plate matching the size of the large diameter end of the steel shell, and a gap is reserved between the bottom plate and the base and the lower end surface of the castable protective layer, and the gap is an air chamber connected to the air permeable slit of the base; the tail pipe is connected to the air chamber and is arranged through the center of the bottom plate.

2. The plate-assembled diffused air-permeable brick according to claim 1 is characterized in that: The air-permeable slits on the base are arranged in two rows; and positioning grooves are arranged on the circumference of the outer edge of the base.

3. The plate-assembled diffused air-permeable brick according to claim 1 is characterized in that: The length and width of the cross-sectional rectangle of the dispersion block are set based on the following principles: the width is equal to the length minus twice the thickness of the plate, and the plate width is equal to the length of the cross-sectional rectangle of the dispersion block.

4. The plate-assembled diffused air-permeable brick according to claim 1 is characterized in that: The lower side edge of the plate and the lower surface of the diffusion block are both provided with grooves, which facilitate the gas in the air permeable slit of the base to enter the airway inside the plate and the diffusion block.

5. The plate-assembled diffused air-permeable brick according to claim 1 is characterized in that: A support member is arranged between the base and the bottom plate in the air chamber.

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