Quick replacement device for bushing brick of basalt fiber smelting furnace

Abstract

The utility model provides a quick replacement device for a bushing brick of a basalt fiber smelting furnace, and belongs to the technical field of fiber processing. The quick replacement device for the bushing brick of the basalt fiber smelting furnace comprises a fence body and a first electrical bar. The fence body makes contact with the bushing in an attached mode under the dead weight of the fence body, and the bushing brick is surrounded in the fence body. A plurality of first mounting blind holes are formed in a circle in the perimeter direction of the fence body. And the first electric heating rods are arranged in the first mounting blind holes one by one. According to the utility model, a smelting furnace does not need to be stopped, heat can be continuously provided for residual melt in the liquid tank in the use process, the melt is prevented from being cooled and solidified, and great convenience is provided for replacement of bushing bricks; meanwhile, the space between the outer side of the fence body and the liquid tank can serve as a temporary storage space for melt discharged by the smelting furnace body, the risk caused by the fact that the smelting furnace body does not discharge materials for a long time is avoided, the smelting furnace body does not need to be powered off in the bushing brick replacement process, and energy consumption generated when the smelting furnace body is started again after cooling is saved.

Description

A quick replacement device for perforated bricks in a basalt fiber furnace Technical Field

[0001] This utility model relates to the field of fiber processing technology, and in particular to a quick replacement device for the perforated brick of a basalt fiber melting furnace. Background Technology

[0002] High-performance basalt fiber continuous fibers are mainly produced through melt drawing and can be used in various fields such as aerospace. The spinneret assembly is one of the key components in the melt drawing process. Figures 1-4 show the specific installation structure of the spinneret assembly. The spinneret assembly is installed as a whole in the liquid tank 1' below the furnace, and includes a spinneret 2' and a spinneret brick 3'. The spinneret 2' is fixed to the bottom of the liquid tank 1'; the spinneret brick 3' consists of a bottom brick and a top brick, with the top brick fixed to the spinneret 2' and the top brick stacked and fixed to the bottom brick. Due to the extremely high temperature and strong corrosiveness of the working environment, the spinneret bricks inevitably need to be replaced due to damage and deformation.

[0003] However, due to the high ambient temperature, the furnace needs to be shut down when replacing the perforated bricks, but the energy consumption for restarting the furnace after shutdown is high; at the same time, the time for the melt to melt again after cooling and solidification is also long. Summary of the Invention

[0004] This invention aims to provide a quick replacement device for perforated bricks in a basalt fiber furnace. It eliminates the need to shut down the furnace and continues to provide heat to the residual molten material in the liquid tank during operation, preventing it from cooling and solidifying, thus greatly facilitating the replacement of perforated bricks. Simultaneously, the space between the outer side of the enclosure body and the liquid tank can serve as a temporary storage space for molten material discharged from the furnace body, avoiding the risks caused by prolonged periods without material discharge. Furthermore, the furnace body does not require power outages during perforated brick replacement, saving energy consumption when restarting after cooling.

[0005] The technical solution adopted in this utility model is:

[0006] A quick replacement device for perforated bricks in a basalt fiber furnace includes:

[0007] The fence body is in contact with the perforated plate under its own weight and encloses the perforated plate bricks inside it; the fence body has a plurality of first installation blind holes around its own circumference, and the opening direction of the first installation blind holes is the height direction of the fence body.

[0008] The first heating element is installed in the first blind hole in sequence.

[0009] Furthermore, the depth of the first blind hole is 4 / 5 to 9 / 10 of the height of the fence body.

[0010] Furthermore, the wall thickness of the fence body is 2~10cm.

[0011] Furthermore, the height of the fence body is between the thickness of the perforated brick and the depth of the liquid tank.

[0012] Furthermore, a mounting groove is formed on the bottom surface of the fence body along its circumference; fiberglass felt is laid in the mounting groove.

[0013] Furthermore, a support portion is formed on the top surface of the fence body, extending perpendicular to its own height; a pressure block is placed on the support portion.

[0014] Furthermore, it also includes:

[0015] The pressure plate body has a receiving groove on its lower surface; when the pressure plate body is placed on the perforated brick, the cover brick of the perforated brick is inserted into the receiving groove, and the gap between the edge of the pressure plate body and the inner wall of the adjacent fence body is 0.5~3mm.

[0016] Furthermore, the pressure plate body has a plurality of second mounting blind holes; each of the second mounting blind holes is fitted with a second heating rod.

[0017] Furthermore, the upper surface of the pressure plate body is also provided with a carrying handle.

[0018] The beneficial effects of this utility model are:

[0019] When using the quick replacement device for basalt fiber furnace perforated bricks in this invention, the furnace body does not need to be powered off, but the discharge of liquid from the furnace body into the liquid tank is temporarily suspended. After fixing the liquid tank and providing effective support for its bottom, the enclosure body, preheated by the first heating rod, is inserted into the liquid tank. The bottom of the enclosure body contacts the perforated brick and remains stable under its own weight, thus enclosing the perforated brick within the enclosure body. Because the enclosure body continuously heats the remaining melt in the surrounding liquid tank, the melt does not solidify due to cooling. After the melt inside the enclosure body is drained, the perforated brick can be replaced. The quick replacement device for basalt fiber furnace perforated bricks in this invention can continue to provide heat to the residual melt in the liquid tank during use, preventing it from cooling and solidifying, and greatly facilitating the replacement of perforated bricks. At the same time, the space between the outer side of the enclosure body and the liquid tank can also serve as a temporary storage space for the melt discharged from the furnace body, avoiding the risks caused by the furnace body not discharging for a long time. The furnace body also does not need to be powered off during the replacement of perforated bricks, saving energy consumption when restarting after cooling. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 is a top view of the specific installation structure of the sprue assembly in the prior art.

[0022] Figure 2 is a cross-sectional view along direction AA in Figure 1.

[0023] Figure 3 is a cross-sectional view along the BB direction in Figure 1.

[0024] Figure 4 is a three-dimensional schematic diagram of the specific installation structure of the sprue assembly in the prior art.

[0025] Figure 5 is a three-dimensional schematic diagram of the working state of the quick replacement device for the basalt fiber furnace perforated brick in Example 1.

[0026] Figure 6 is a top view of the working state of the quick replacement device for the basalt fiber furnace perforated brick in Example 2.

[0027] Figure 7 is a cross-sectional view along the CC direction in Figure 6.

[0028] Figure 8 is a cross-sectional view along the DD direction in Figure 6.

[0029] Figure 9 is a three-dimensional schematic diagram of the working state of the quick replacement device for the basalt fiber furnace perforated brick in Example 2.

[0030] The attached figures are labeled as follows:

[0031] 1' - Liquid tank; 2' - Drain plate; 3' - Drain plate brick.

[0032] 100. Fence body; 110. First blind mounting hole; 120. Mounting groove; 130. Supporting part.

[0033] 200. Pressed block.

[0034] 300, pressure plate body; 310, receiving groove; 320, carrying handle; 330, second mounting blind hole; 340, wire hole. Detailed Implementation

[0035] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0036] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. Of course, these are merely examples and are not intended to limit the scope of this invention.

[0037] The embodiments of the utility model will now be described in detail with reference to the accompanying drawings.

[0038] Example 1

[0039] Figure 5 is a three-dimensional schematic diagram of the working state of the quick replacement device for the basalt fiber furnace perforated brick in Example 1. As shown in Figure 5, the quick replacement device for the basalt fiber furnace perforated brick includes a fence body 100. The fence body 100 is made of ceramic material (such as zirconium oxide) or metal material (such as copper, stainless steel), and is rectangular in shape. The length and width of the inner perimeter of the fence body 100 are greater than the length and width of the outer perimeter of the corresponding perforated brick 3'. The height of the fence body 100 is between the thickness of the perforated brick 3' and the depth of the liquid tank. The wall thickness of the fence body 100 is 2~10cm. Several first installation blind holes 110 are opened on the fence body 100 along its height direction. The depth of the first installation blind holes 110 is 4 / 5~9 / 10 of the height of the fence body 100. Thus, the several first installation blind holes 110 are arranged in a circle along the perimeter of the fence body 100. A first heating rod of appropriate length (not shown in the figure) is installed in each first blind mounting hole 110. The heat generated by the first heating rod when it is powered on is gradually transferred outward.

[0040] In this embodiment, the quick replacement device for the basalt fiber furnace perforated brick does not require power outages, but the discharge of liquid from the furnace body to the liquid tank 3' is temporarily suspended. After fixing the liquid tank 3', providing effective support for its bottom, the enclosure body 100, preheated by the first heating rod, is inserted into the liquid tank 3'. The bottom of the enclosure body 100 is in close contact with the perforated plate 2' and remains stable under its own weight, thus enclosing the perforated brick 3' within the enclosure body 100. Because the enclosure body 100 continuously heats the remaining melt in the surrounding liquid tank 3', the melt does not solidify due to cooling. After the melt within the enclosure body 100 is drained, the perforated brick 3' can be replaced. The quick replacement device for the basalt fiber furnace perforated brick in this embodiment can continue to provide heat to the residual melt in the liquid tank 1' during use, preventing it from cooling and solidifying, and greatly facilitating the replacement of the perforated brick; at the same time, the space between the outer side of the enclosure body 100 and the liquid tank 1' can also serve as a temporary storage space for the melt discharged from the furnace body, avoiding the risk caused by the furnace body not discharging for a long time. The furnace body also does not need to be powered off during the replacement of the perforated brick 3', saving energy consumption when restarting after cooling.

[0041] In this embodiment, in order to prevent the residual melt in the liquid tank 1' from escaping into the fence body 100 during the replacement of the perforated brick 3', a mounting groove 120 is formed on the bottom surface of the fence body 100 along its circumference, and a glass fiber mat (not shown in the figure) is laid in the mounting groove 120. In this embodiment, by setting the glass fiber mat on the bottom surface of the fence body 100, the fence body 100, under its own weight, is in contact with the perforated brick 2', and the glass fiber mat further reduces the escape of the melt.

[0042] In this embodiment, a support portion 130 is formed around the top surface of the fence body 100, extending perpendicular to its height. By placing pressure blocks 200 of different weights on the support portion 130, the contact tightness between the fence body 100 and the sluice plate 2' can be improved, reducing the escape of residual melt in the liquid tank 1' into the fence body 100. Simultaneously, in this embodiment, the support portion 130 can also serve as a handle for easy movement of the fence body 100. It should be noted that the fence body 100 in this embodiment operates at a high temperature; therefore, precautions should be taken to avoid burns.

[0043] Example 2

[0044] Figure 6 is a top view of the quick replacement device for the basalt fiber furnace perforated brick in Example 2, showing its working state. Figure 7 is a cross-sectional view along the CC direction in Figure 6. Figure 8 is a cross-sectional view along the DD direction in Figure 6. Figure 9 is a three-dimensional schematic diagram of the quick replacement device for the basalt fiber furnace perforated brick in Example 2, showing its working state. As shown in Figures 6-9, the quick replacement device for the basalt fiber furnace perforated brick includes a fence body 100. The fence body 100 is made entirely of ceramic material (such as zirconium oxide) or metal material (such as copper, stainless steel, etc.), and is generally rectangular in shape. The length and width of the inner perimeter of the fence body 100 are greater than the length and width of the outer perimeter of the corresponding perforated brick 3'. The height of the fence body 100 is between the thickness of the perforated brick 3' and the depth of the liquid tank 1'. The wall thickness of the fence body 100 is 2-10 cm. A plurality of first mounting blind holes 110 are formed on the fence body 100 along its thickness direction. The depth of the first mounting blind holes 110 is 4 / 5 to 9 / 10 of the height of the fence body 100. Thus, the plurality of first mounting blind holes 110 are arranged in a circle along the circumference of the fence body 100. A first heating rod (not shown in the figure) of suitable length is installed in each first mounting blind hole 110. The heat generated by the first heating rod when it is powered on is gradually transferred outward. A support portion 130 is formed on the top surface of the fence body 100 extending in a direction perpendicular to its height. By preventing pressure blocks 200 of different weights on the support portion 130, the contact tightness between the fence body 100 and the sluice plate 2' can be improved, reducing the escape of residual melt in the liquid tank 1' into the fence body 100. At the same time, in this embodiment, the support portion 130 can also serve as a handle to facilitate the movement of the fence body 100. It should be noted that the fence body 100 in this embodiment is at a high temperature during use, and care should be taken to avoid burns.

[0045] When the liquid tank 1' is initially removed, it still contains a significant amount of molten material. If the waiting time for the remaining molten material to flow out is long, and the molten material cools and solidifies, it will be detrimental to the replacement of the perforated brick 3'. The quick replacement device for the perforated brick of the basalt fiber furnace in this embodiment also includes a pressure plate body 300. The length and width of the pressure plate body 300 are 0.5-3 mm less than the inner circumference of the corresponding enclosure body 100, and it is entirely made of ceramic material (such as zirconium oxide) or metal material (such as copper, stainless steel, etc.). Simultaneously, a receiving groove 310 is provided on the lower surface of the pressure plate body 300; the length and width of the receiving groove 310 are 0.5-3 mm larger than the length and width of the cover brick above the corresponding perforated brick 3', and the depth of the receiving groove 310 is approximately the same as the thickness of the cover brick; the upper surface of the pressure plate body 300 is also provided with two carrying handles 320. Therefore, when using the quick replacement device for the perforated brick of the basalt fiber furnace... First, place the pressure plate body 300 on the sprue brick 3', with the cover brick fitting into the receiving groove 310. Then, insert the enclosure body 100, preheated by the first heating rod, into the liquid tank 3'. The bottom of the enclosure body 100 contacts the sprue 2' and remains stable under its own weight, thus encircling the sprue brick 3' and the pressure plate body 300 within the enclosure body 100. Due to the volume and weight of the pressure plate body 300 occupying and displacing the molten material, the amount of molten material within the enclosure body 100 is reduced. The sprue brick 3' can be quickly replaced by removing the pressure plate body 300.

[0046] In this embodiment, to prevent excessive temperature difference between the pressure plate body 300 and the melt, which could cause the melt to solidify, several second mounting blind holes 330 are provided within the pressure plate body 300. The second mounting blind holes 330 are located along the length or width of the pressure plate body 300, with a length of 4 / 5 to 9 / 10 of the corresponding length or width. A second heating rod (not shown in the figure) is installed within each second mounting blind hole 330. After the second heating rod is installed, the open end of the second mounting blind hole 330 needs to be sealed. The connecting wire of the second heating rod is led out from the upper surface of the pressure plate body 300 through the corresponding second mounting blind hole 340. In this embodiment, the second heating rod can heat the pressure plate body 300, thereby reducing the temperature difference between it and the melt.

Claims

1. A quick replacement device for perforated bricks in a basalt fiber furnace, characterized in that, include: The fence body is in contact with the perforated plate under its own weight, and the perforated plate bricks are enclosed within it; the fence body has a plurality of first installation blind holes around its circumference, and the opening direction of the first installation blind holes is the height direction of the fence body; the first heating rods are arranged one by one in the first installation blind holes.

2. The quick replacement device for basalt fiber furnace perforated bricks according to claim 1, characterized in that, The depth of the first blind hole is 4 / 5 to 9 / 10 of the height of the fence body.

3. The quick replacement device for basalt fiber furnace perforated bricks according to claim 1, characterized in that, The wall thickness of the fence body is 2~10cm.

4. The quick replacement device for basalt fiber furnace perforated bricks according to claim 1, characterized in that, The height of the fence body is between the thickness of the perforated brick and the depth of the liquid tank.

5. The quick replacement device for basalt fiber furnace perforated bricks according to claim 1, characterized in that, The bottom surface of the fence body has a ring of mounting grooves along its circumference; the mounting grooves are lined with fiberglass felt.

6. The quick replacement device for basalt fiber furnace perforated bricks according to claim 1, characterized in that, The top surface of the fence body has a supporting part extending perpendicular to its height; a pressure block is placed on the supporting part.

7. The quick replacement device for basalt fiber furnace perforated bricks according to any one of claims 1 to 6, characterized in that, Also includes: The pressure plate body has a receiving groove on its lower surface; when the pressure plate body is placed on the perforated brick, the cover brick of the perforated brick is inserted into the receiving groove, and the gap between the edge of the pressure plate body and the inner wall of the adjacent fence body is 0.5~3mm.

8. The quick replacement device for basalt fiber furnace perforated bricks according to claim 7, characterized in that, The pressure plate body has a plurality of second mounting blind holes; each of the second mounting blind holes is fitted with a second heating rod.

9. The quick replacement device for basalt fiber furnace perforated bricks according to claim 8, characterized in that, The upper surface of the pressure plate body is also provided with a carrying handle.

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