Erosion-resistant corundum refractory brick

Abstract

The utility model relates to the technical field of thermal insulation materials, in particular to an erosion-resistant corundum refractory brick which comprises a brick body, an inserting groove is formed in the inner side of the brick body, a filling brick is inserted in the inserting groove, a positioning screw is fixedly installed in the inserting groove, an inserting hole is formed in the middle of the filling brick, and the inserting hole is communicated with the inserting groove. And the positioning screw rod is inserted into the insertion hole, and the outer surface of the positioning screw rod is in threaded connection with a positioning cap. The utility model has the advantages that in the long-time use process, the structure which is firstly eroded or damaged by collision is the filling brick, so that when a certain filling brick is seriously eroded or seriously damaged, the positioning cap can be taken down through rotation, and then the filling brick is disassembled and replaced, thereby facilitating the maintenance of the lining in the later period, and improving the service life of the lining. The positioning screw rod is in threaded connection with the interior of the brick body, so that the positioning screw rod is detachable, and the positioning screw rod can be detached and replaced if the positioning screw rod is damaged in the long-time use process.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of thermal insulation materials, particularly relates to an erosion-resistant corundum refractory brick. BACKGROUND

[0002] Corundum refractory brick is a kind of refractory product mainly composed of alumina, with content more than 90%, and corundum as main crystal phase.Corundum refractory brick has very high fire resistance, can withstand high temperature up to 1700 DEG C or more, and even some corundum bricks fire resistance is more than 2400 DEG C, so it is very suitable for high-temperature furnace and other environments, and can resist oxidation, reduction and acid and alkali and various kinds of erosion, has strong corrosion resistance, can keep stable in harsh chemical environment.In addition, the high normal temperature compressive strength (up to 340MPa) and high load softening temperature (greater than 1700 DEG C) of corundum brick further enhance its erosion resistance.Therefore, corundum refractory brick is widely used in metallurgy, chemical industry, ceramics and other industries.In the metallurgical industry, it is often used for the inner lining of blast furnace, converter, electric furnace and other equipment;In chemical production, it can be used for the manufacture of high-temperature reaction furnace, catalyst carrier and other equipment;In the ceramic industry, it is mainly used for the inner lining of kiln.

[0003] The existing erosion-resistant corundum refractory brick is often fan-shaped when used as inner lining, and multiple erosion-resistant corundum refractory bricks can be spliced into a circular ring to serve as the inner lining of kiln, but the kiln has the following defects during long-term use.

[0004] During use, each corundum refractory brick is eroded to different degrees, and some may be severely eroded or damaged due to other reasons, thereby affecting the overall heat preservation and insulation performance of the kiln, and since the corundum refractory brick is often fan-shaped, it cannot be individually disassembled, thereby inconvenient for later maintenance of the inner lining. TECHNICAL PROBLEM

[0005] The utility model aims at solving at least one of the technical defects in the background art.

[0006] Therefore, one purpose of the utility model is to provide an erosion-resistant corundum refractory brick, which aims to solve the problem that the existing erosion-resistant corundum refractory brick is inconvenient to maintain when used as the inner lining of kiln due to its fan-shaped shape.

[0007] In order to achieve the above-mentioned purpose, an embodiment of the utility model provides an erosion-resistant corundum refractory brick, which comprises a brick body, a slot is formed in the inner side of the brick body, a filler brick is inserted into the interior of the slot, a positioning screw rod is fixedly installed in the interior of the slot, a plug hole is formed in the middle of the filler brick, the positioning screw rod is inserted into the interior of the plug hole, and a positioning cap is threadedly connected to the outer surface of the positioning screw rod.

[0008] Preferably, the interior of the slot is provided with a threaded hole, and the positioning screw is threadedly connected in the threaded hole, so that the positioning screw is convenient to disassemble and replace.

[0009] Preferably, the interior of the slot is provided with a threaded hole, and the positioning screw is threadedly connected in the threaded hole, so that the positioning screw is convenient to disassemble and replace.

[0010] Preferably, the interior of the slot is provided with a threaded hole, and the positioning screw is threadedly connected in the threaded hole, so that the positioning screw is convenient to disassemble and replace.

[0011] Preferably, the interior of the slot is provided with a threaded hole, and the positioning screw is threadedly connected in the threaded hole, so that the positioning screw is convenient to disassemble and replace.

[0012] Compared with the prior art, the present application has the following advantages and beneficial effects:

[0013] First, the filling bricks correspond to the interior of the pit furnace, so that during long-term use, the structure that is first eroded or damaged by collision is the filling brick, and therefore, when a filling brick is severely eroded or damaged, the positioning cap can be rotated and removed, and then the filling brick can be disassembled and replaced, thereby facilitating the maintenance of the lining in the later period.

[0014] Second, the positioning screw is threadedly connected in the interior of the brick body, so that the positioning screw is detachable, and therefore, during long-term use, if the positioning screw is damaged, it can be disassembled and replaced.

[0015] Third, the positioning cap is located in the interior of the recess, so that the positioning cap is flush with the interior of the filling brick and does not protrude, thereby avoiding the problem that foreign objects collide with the positioning cap, causing the positioning cap to be damaged or the positioning screw to be deformed.

[0016] Additional aspects and advantages of the present application will be given in part in the following description, and will become apparent from the following description, or will be learned by practicing the present application. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the references to the following drawings, of which:

[0018] Figure 1 It is a structural schematic diagram of the present application.

[0019] Figure 2 It is a structural schematic diagram of the present application after decomposition.

[0020] Figure 3 It is a structural schematic diagram of the present application.

[0021] Figure 4 It is a structural schematic diagram of the present application.

[0022] Figure 5 It is a structural schematic diagram of the present application in use.

[0023] Wherein: 1, brick, 11, slot, 12, threaded hole, 13, positioning block one, 14, positioning groove one, 15, positioning block two, 16, positioning groove two, 2, filler brick, 21, insertion hole, 22, groove, 3, positioning screw, 31, positioning cap, 32, connecting groove. DETAILED DESCRIPTION

[0024] The embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0025] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0026] The present application provides an erosion-resistant corundum refractory brick.

[0027] Example one:

[0028] As Figures 1-4As shown, it includes brick body 1, the inner side of brick body 1 is provided with slot 11, the inside of slot 11 is inserted with filling brick 2, and the filling brick 2 is made of corundum material, which ensures corrosion resistance, and the inside of slot 11 is fixedly provided with positioning screw 3, the middle of filling brick 2 is provided with insertion hole 21, and the positioning screw 3 is inserted into the insertion hole 21, so that the filling brick 2 is supported by the positioning screw 3, thereby preventing the filling brick 2 from sliding down along the slot 11, and the outer surface of the positioning screw 3 is threadedly connected with positioning cap 31, and the inner side of the positioning cap 31 abuts against the filling brick 2, so that the filling brick 2 is fixed in the slot 11, and the filling brick 2 and the brick body 1 form an integral whole.

[0029] As shown in the figure, Figures 2-3 The top of the brick body 1 is fixedly connected with a positioning block one 13, and the bottom of the brick body 1 is provided with a positioning groove one 14 matched with the positioning block one 13, when the upper and lower two brick bodies 1 are stacked during laying of the kiln lining, the positioning block one 13 is inserted into the inside of the positioning groove one 14, so that the upper and lower two brick bodies 1 are connected together, and one side of the brick body 1 is fixedly connected with a positioning block two 15, and the other side of the brick body 1 is fixedly connected with a positioning groove two 16 matched with the positioning block two 15, when the left and right two brick bodies 1 are spliced, the positioning block two 15 is inserted into the inside of the positioning groove two 16, so as to improve the integrity of the adjacent two brick bodies 1.

[0030] Example two:

[0031] As shown in the figure, Figures 2-3 On the basis of example one, the inside of the slot 11 is provided with a threaded hole 12, and the positioning screw 3 is threadedly connected in the inside of the threaded hole 12, so that the positioning screw 3 is detachable, so that in the long-term use process, if damage occurs, it can be disassembled and replaced.

[0032] Example three:

[0033] As shown in the figure, Figure 2 And Figure 4 As shown in the figure, on the basis of example one or example two, the inside of the filling brick 2 is provided with a groove 22 at a position corresponding to the insertion hole 21, and the positioning cap 31 is located in the inside of the groove 22, so that the positioning cap 31 is flush with the inside of the filling brick 2 and does not protrude, so as to avoid the problem that foreign matter collides with the positioning cap 31, causing damage to the positioning cap 31 or deformation of the positioning screw 3, and one side of the positioning cap 31 is provided with a connecting groove 32, a tool can be inserted into the connecting groove 32 to rotate the positioning cap 31, so as to ensure that the positioning cap 31 can be normally disassembled and assembled.

[0034] The working principle of the utility model is as follows: in use, the filling brick 2 is fixed in the slot 11 of the brick body 1 through the positioning screw 3 and the positioning cap 31 to form a complete corundum refractory brick, and then Figure 5As shown, the multiple corundum refractory bricks are assembled into the inner lining of the pit furnace, and the inner side of the filler bricks 2 corresponds to the inside of the pit furnace during use, so the structure that is first eroded or broken by collision during long-term use is the filler bricks 2, and therefore, when a certain filler brick 2 is severely eroded or severely damaged, the positioning cap 31 can be rotated and removed, and then the filler brick 2 can be disassembled and replaced, if the positioning cap 31 is also eroded or damaged and is difficult to disassemble, a hammer can be used to strike the filler brick 2 to break the filler brick 2 and the positioning cap 31, and then new filler bricks 2 and positioning caps 31 can be replaced.

Claims

1. An erosion resistant corundum refractory brick comprising a brick body (1), characterized in that, The inner side of the brick body (1) is provided with a slot (11), the slot (11) is internally inserted with a filling brick (2), the slot (11) is internally fixedly installed with a positioning screw rod (3), the middle part of the filling brick (2) is provided with a insertion hole (21), the positioning screw rod (3) is inserted in the insertion hole (21), and the outer surface of the positioning screw rod (3) is threadedly connected with a positioning cap (31).

2. The erosion resistant corundum refractory brick according to claim 1, characterized in that The inside of the slot (11) is provided with a threaded hole (12), and the positioning screw rod (3) is threadedly connected in the threaded hole (12).

3. The erosion resistant corundum refractory brick according to claim 1, characterized in that, The inner side of the filling brick (2) is provided with a groove (22) at the position corresponding to the insertion hole (21), the positioning cap (31) is located in the groove (22), and one side of the positioning cap (31) is provided with a connecting groove (32).

4. The erosion resistant corundum refractory brick according to claim 1, characterized in that, The top of the brick body (1) is fixedly connected with a positioning block one (13), and the bottom of the brick body (1) is provided with a positioning groove one (14) matched with the positioning block one (13).

5. The erosion resistant corundum refractory brick according to claim 1, characterized in that, One side of the brick body (1) is fixedly connected with a positioning block two (15), and the other side of the brick body (1) is fixedly connected with a positioning groove two (16) matched with the positioning block two (15).

Images