A sealing and filling structure and method for the interface region of a cooling section and a stirred tank

Abstract

The application provides a sealing and filling structure and method for the abutting area of a cooling section and a stirring tank, and belongs to the TFT-LCD substrate glass industry. By designing an abutting structure of a platinum body, the position of a welding seam after platinum abutting is changed, the coating protection area in the flow direction of the platinum body is increased to 100%, the oxidation resistance and volatility resistance of the body are effectively improved, and meanwhile, by using a segmented grouting filling method, the sealing protection on both sides of the welding seam is increased, the sealing of the abutting area is overall strengthened, and the operation life is prolonged.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of substrate glass manufacturing, and particularly relates to a sealing and filling structure and method for the docking area of a cooling section and a stirring tank. BACKGROUND

[0002] In substrate glass production, a platinum channel is used as a glass conveying device. Since the cooling section mainly serves to connect the front half section and the rear half section in actual installation, the cooling outlet and the stirring inlet need to be finally docked after on-site installation and positioning.

[0003] In the installation process of the platinum channel, due to the functional differences between the sections, the platinum channel is mainly divided into a front half section, a cooling section and a rear half section. According to the set expansion management mode and structural principle, the cooling section inlet is taken as the main moving point of expansion displacement. Since the welding of this area is performed after on-site installation, the manufacturer reserves a certain welding operation range during the manufacturing process. In addition to this area, other body areas have been subjected to spray treatment. After the cooling outlet and the stirring inlet are welded on site, about 200mm of platinum is exposed. In the subsequent production process, the platinum body in this area is severely oxidized and volatilized, the substrate is continuously thinned, and even cracking and leakage problems may occur in the middle and later stages.

[0004] The welding process of the present application improves the overall sealing and reliability of the welding area by eliminating the exposed body range and using a targeted filling method. SUMMARY

[0005] To solve the problems in the prior art, the present application provides a sealing and filling structure and method for the docking area of a cooling section and a stirring tank. The present application can improve the oxidation resistance of the welding area of the heat preservation section and the stirring tank, prolong the service life of the area, and improve the sealing and reliability of the welding area.

[0006] The present application is achieved by the following technical solutions:

[0007] A sealing and filling structure for the docking area of a cooling section and a stirring tank, comprising a first heat preservation brick, a middle heat preservation brick and a tail heat preservation brick.

[0008] The first heat preservation brick and the middle heat preservation brick are sleeved on the outside of the cooling section, and the tail heat preservation brick is sleeved on the outside of the stirring tank and forms a grouting opening. The first heat preservation brick, the middle heat preservation brick and the tail heat preservation brick are sequentially communicated and form a sealed filling gap with the pipeline.

[0009] The first heat preservation brick is provided with a grouting hole, and one end of the first heat preservation brick is provided with a sealing step. The middle heat preservation brick is provided with an annular groove inside. The filling gap is filled with filling slurry.

[0010] Further, the distance between the first section heat preservation brick, the middle section heat preservation brick and the tail section heat preservation brick and the outside of the pipeline is 15-20mm.

[0011] Further, the sealing step is provided with an L-shaped corner in the direction of the cooling section; the length of the L-shaped corner of the sealing step is 15-20mm.

[0012] Further, the distance between the grouting hole and the welding seam formed by welding between the cooling section and the stirring tank is within the maximum distance and the minimum distance between the grouting hole and the welding seam.

[0013] Further, the depth of the annular groove is 10-20mm, and the width is 20-100mm.

[0014] Further, the annular groove is sleeved outside the welding seam.

[0015] Further, the heat preservation brick is an alumina brick.

[0016] Further, the grouting hole is on the top of the first section heat preservation brick.

[0017] Based on any one of the above structures, a sealing and filling method for the joint area of the cooling section and the stirring tank, comprising the following steps,

[0018] Step 1: install the first section heat preservation brick and the middle section heat preservation brick outside the cooling section, and install the tail section heat preservation brick outside the stirring tank body, so that the first section heat preservation brick, the middle section heat preservation brick and the tail section heat preservation brick form a closed whole.

[0019] Step 2: use filling slurry to fill the gap from the grouting hole and the grouting hole.

[0020] Further, the grouting filling method is to simultaneously fill the grouting hole and the grouting hole with the annular groove as the center, and form a symmetrical sealing from both sides on the welding seam area.

[0021] Compared with the prior art, the present application has the following beneficial technical effects:

[0022] The structure is characterized in that the first section heat preservation brick and the middle section heat preservation brick are sleeved outside the cooling section, the tail section heat preservation brick is sleeved outside the stirring tank, the first section heat preservation brick, the middle section heat preservation brick and the tail section heat preservation brick are sequentially connected and a filling gap is formed; the first section heat preservation brick is provided with an L-shaped sealing step at one end, so that a sealed inner filling gap is formed, a grouting hole is arranged on the first section heat preservation brick, and an annular groove is arranged in the middle section heat preservation brick; further, the distance between the first section heat preservation brick, the middle section heat preservation brick and the tail section heat preservation brick and the outside of the pipeline is 15-20 mm, so that the grout can be fully filled and covered in the later stage; the sealing step is provided with an L-shaped corner in the direction of the cooling section, and the corner length is also 15-20 mm, so that the sealing step can seal the front end of the first section heat preservation brick and the cooling section, and the grout can form a protective layer in a specific area during grouting and can realize a later-stage symmetrical sealing mode from both sides.

[0023] Further, the middle section heat preservation brick is provided with an annular groove at a position corresponding to the butt joint surface area, so that the grout can fully fill the area of the butt joint surface forming a weld, and the grout can be filled from both sides in the butt joint surface area through the symmetrical filling mode from both sides of the present application, and the grout flows and fills through the action of gravity, so that the area is fully filled and a complete protective layer is formed.

[0024] A sealing and filling method for the butt joint area of a cooling section and a stirring tank, the method forms a closed whole through the first section heat preservation brick, the middle section heat preservation brick and the tail section heat preservation brick, so that the grout can be filled in a specific area, a grouting hole is further arranged on the first section heat preservation brick, and the grout is filled from the grouting hole and the grouting port, so that the grouting grout can completely cover the weld area through the action of gravity, and the integrity and consistency of the protective layer formed by the covering grout on the surface of the pipeline are ensured. The present application solves the problem of oxidation damage of the butt joint area of the cooling section and the stirring tank, and improves the service life.

[0025] Figure 1 The figure is a schematic diagram of the butt joint of the stirring tank and the cooling section.

[0026] Figure 2 The figure is a schematic diagram of the butt joint structure.

[0027] Figure 3 The figure is a schematic diagram of the whole sealing and mounting structure.

[0028] In the figure, 1 is a cooling section, 11 is a cooling section butt joint surface, 2 is a stirring tank, 3 is a stirring inlet, 31 is a stirring inlet butt joint surface, 4 is a weld, 5 is a first section heat preservation brick, 51 is a grouting hole, 6 is a middle section heat preservation brick, 61 is an annular groove, 7 is a filling gap, 8 is a tail section heat preservation brick, and 81 is a grouting port. DETAILED DESCRIPTION

[0029] The present invention will be further described in detail below with reference to specific embodiments, which are intended to explain the present invention rather than to limit it.

[0030] The present invention is a sealing and filling structure and method for the docking area between a cooling section and a stirring tank. The structure mainly includes a local docking structure formed by butt welding the cooling section 1 and the stirring inlet 3, and an overall sealing and symmetrical grouting structure composed of peripheral refractory materials.

[0031] like Figure 1 The cooling section 1 and the stirring inlet 3 shown are designed to have the same diameter. Structurally, both sections of platinum can be called cooling sections. This is mainly because the actual installation process requires the second half of the section containing the stirring tank to be installed first, and finally a space is reserved for the installation of the cooling section. The cooling section mainly serves to connect the first and second halves. Therefore, at the stirring tank inlet at the initial end of the second half, a platinum tube with the same diameter as the cooling section is designed to facilitate on-site docking and welding with the cooling section.

[0032] The cooling section 1 and the stirring inlet 3 as described above are not within the scope of the present invention and will not be described in detail.

[0033] like Figure 2 As shown, the cooling section butt joint surface 11 and the stirring inlet butt joint surface 31 are installed and fixed on one side of the stirring tank at the installation site, and then the cooling section 1 is installed. The cooling section butt joint surface 11 and the stirring inlet butt joint surface are fitted together, and the platinum material of about 5 mm within the 20 mm range of the butt joint surface is melted and welded by autogenous welding to form a butt weld 4. The width of the weld itself is 5 mm, that is, the butt joint surface of the lower flange finally has about 10 mm remaining.

[0034] like Figure 3 After the cooling section 1 and the stirring inlet 3 are butt-welded, the first-section insulation bricks 5 and the middle-section insulation bricks 6 of the external refractory structure are installed. They mainly serve as a support, and the gap formed by the first-section insulation bricks 5 and the middle-section insulation bricks 6 and the internal platinum tube is about 15-20 mm. Especially for the middle-section insulation bricks 6, the filling thickness of the weld position is the same as that of other parts. A groove with a depth of 10-20 mm and a width of 20-100 mm is made in the corresponding butt surface area of ​​the middle-section insulation bricks 6 to form an annular groove 61.

[0035] As described above, after the first-section insulation bricks 5 and the middle-section insulation bricks 6 are installed, they form a sealed whole with the tail-section insulation bricks 8 installed in advance on the periphery of the mixing tank body 2, and a sealing step 52 is designed at the front end of the first-section insulation brick 5. At the same time, a grouting hole 51 with a diameter of 30~50mm is opened on the upper part of the first-section insulation brick 5.

[0036] The filling method mainly comprises the following steps: installing a first section of heat preservation bricks and a middle section of heat preservation bricks outside the cooling section, installing a tail section of heat preservation bricks outside the stirring tank body, and forming a closed whole by the first section of heat preservation bricks, the middle section of heat preservation bricks and the tail section of heat preservation bricks; filling the gap 7 with filling slurry, and filling the gap from both sides with the abutment surface between the cooling section 1 and the stirring inlet 3 as the center, filling from the left through the filling hole 51 designed on the first section of heat preservation bricks 5, and filling from the right through the upper filling opening 81 of the gap between the stirring tank body 2 and the tail section of heat preservation bricks 8, so that the slurry flows fully and fills the whole filling gap 7, and the abutment surface area and the weld 4 are filled symmetrically from both sides to form a seal.

Claims

1. A sealing filling structure for the docking area between a cooling section and a stirring tank, characterized in that: It includes a first section of insulation bricks (5), a middle section of insulation bricks (6) and a tail section of insulation bricks (8); The first section insulation bricks (5) and the middle section insulation bricks (6) are sleeved on the outside of the cooling section (1); the tail section insulation bricks (8) are sleeved on the outside of the stirring tank (2) and form a grouting port (81); the first section insulation bricks (5), the middle section insulation bricks (6) and the tail section warming bricks (8) are sequentially connected and form a sealed filling gap (7) with the pipeline; The first section insulation brick (5) is provided with a grouting hole (51), and one end of the first section insulation brick (5) is provided with a sealing step (52); an annular groove (61) is provided inside the middle section insulation brick (6); the annular groove (61) is sleeved on the outside of the weld (4); the depth of the annular groove (61) is 10-20 mm, and the width is 20-100 mm; The filling gap (7) has a filling slurry inside to form a protective layer; grouting is performed simultaneously from the grouting hole (51) and the grouting port (81) with the annular groove (61) as the center, forming a symmetrical seal on both sides of the weld seam (4).

2. The sealing and filling structure of the interface area between the cooling section and the stirring tank according to claim 1, characterized in that: The distance between the first section insulation brick (5), the middle section insulation brick (6) and the tail section insulation brick (8) and the outside of the pipeline is 15-20 mm.

3. The sealing and filling structure of the interface area between the cooling section and the stirring tank according to claim 1, characterized in that: The sealing step (52) is provided with an L-shaped corner in the direction of the cooling section (1); the length of the L-shaped corner of the sealing step (52) is 15-20 mm.

4. The sealing and filling structure of the interface area between the cooling section and the stirring tank according to claim 1, characterized in that: The distance between the grouting hole (51) and the weld (4) formed by welding the cooling section (1) and the stirring tank (2) is within the maximum distance and the minimum distance between the grouting port (81) and the weld (4).

5. The sealing and filling structure of the interface area between the cooling section and the stirring tank according to claim 1, characterized in that: The thermal insulation bricks are alumina bricks.

6. The sealing and filling structure of the interface area between the cooling section and the stirring tank according to claim 1, characterized in that: The grouting hole (51) is located at the apex of the first section of the insulation brick (5).

7. A sealing and filling method for the docking area between a cooling section and a stirring tank, characterized in that: The structure according to any one of claims 1 to 6 comprises the following steps: Step 1: Install the first section insulation bricks (5) and the middle section insulation bricks (6) on the outside of the cooling section, and install the tail section insulation bricks (8) on the outside of the mixing tank body, so that the first section insulation bricks (5), the middle section insulation bricks (6) and the tail section insulation bricks (8) form a sealed whole; Step 2: Use filling slurry to fill the filling gap (7) from the grouting hole (51) and the grouting port (81); The grouting filling method is to simultaneously perform grouting filling from the grouting hole (51) and the grouting port (81) with the annular groove (61) as the center, thereby forming a symmetrical seal on both sides of the weld seam (4).

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