Porcelain insulator ventilation kiln loading structure

Abstract

The utility model discloses a porcelain insulator ventilation kiln loading structure, which relates to the technical field of loading equipment, and comprises a sagger, upright posts and a kiln car unit, the upper surface of the kiln car unit is fixedly provided with the upright posts, an upright post through hole is arranged between two adjacent upright posts, a cross beam is arranged in the upright post through hole, and the upper surface of the cross beam is lapped with a longitudinal beam; and saggars are lapped on the longitudinal beams. According to the porcelain insulator ventilation kiln loading structure, the stand columns are fixedly installed on the kiln car unit, the saggars, the cross beams and the longitudinal beams are installed on the stand columns in a lap joint mode, porcelain insulator green bodies of different sizes and specifications can be loaded conveniently, it is guaranteed that the atmosphere is uniform due to gas circulation in the firing process, and the firing quality is improved. Meanwhile, the kiln loading density can be guaranteed, and the longitudinal space of the kiln is fully utilized; furthermore, the zirconium-containing fiber blanket is covered with the aluminum oxide hollow plate, so that the situation that flying catkins generated by the zirconium-containing fiber blanket fall on the glaze surface of the porcelain insulator blank body, and the yield is reduced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of loading equipment, in particular to a porcelain insulator ventilation kiln loading structure. Background Art

[0002] Suspension porcelain insulators are usually used in overhead transmission lines, and they are mainly disc-type structures. In the production of suspension porcelain insulators, the firing process is a key process in ceramic production. Firing is the process of high-temperature roasting of ceramic green bodies to transform them into ceramic products. During the firing process, the green body will undergo a series of physical and chemical changes, forming a certain mineral composition and microstructure, and obtaining the required performance.

[0003] The current kiln loading method usually uses a closed bowl-shaped sagger or directly uses a flat plate for firing. When using a closed bowl-shaped sagger, alumina powder is placed in the sagger to prevent the glaze of the porcelain insulator head from sticking to the sagger. The head of the suspension insulator is placed in the sagger bowl, and the sagger is placed on the kiln. In order to ensure that the insulator head is not buried too much in the bowl, the kiln bowl occupies one-third of the height of the head, and the longitudinal space of the kiln is not fully utilized. At the same time, when using a reducing flame for firing, the insulator head cannot ensure gas circulation due to being buried in the bowl-shaped sagger, resulting in incomplete reduction in some areas. After knocking open the porcelain, a ring-shaped yellow heart can be found, which affects its performance. If the product is fired directly with a flat plate, it is necessary to wipe off the glaze on the top of the porcelain insulator head during the glazing stage to prevent the flat plate from sticking to the glaze on the top of the head. On the one hand, the process of removing the glaze on the top affects the production rhythm due to the additional process. On the other hand, wiping off the glaze on the top may cause defects, and at the same time destroy the overall performance of the head glaze, affecting its product performance. Moreover, the kiln loading density is low when using flat plates for direct firing, and the longitudinal space in the kiln is not fully utilized.

[0004] How to develop a porcelain insulator ventilated kiln structure to ensure product ventilation without wiping off the top glaze, ensure gas circulation during firing to make the atmosphere uniform, and at the same time ensure the kiln loading density to fully utilize the longitudinal space of the kiln, has become a technical problem that needs to be solved urgently by technical personnel in this field. Utility Model Content

[0005] The utility model aims to provide a porcelain insulator ventilation kiln structure to solve the problems listed in the background technology.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] The utility model relates to a ventilation kiln loading structure for porcelain insulators, which comprises a sagger, a column and a kiln car unit. The column is fixedly installed on the upper surface of the kiln car unit. A column through hole is formed between two adjacent columns. A cross beam is placed in the column through hole. A longitudinal beam is lapped on the upper surface of the cross beam, and the sagger is lapped on the longitudinal beam.

[0008] Preferably, the sagger comprises a lapping plate and a bearing plate. The lapping plate is fixedly connected to the two opposite sides of the bearing plate through a connecting plate, and limiting plates are fixedly installed on the other two opposite sides of the bearing plate.

[0009] Preferably, an anti-bonding coating is applied on the upper surface of the bearing plate.

[0010] Preferably, the kiln car unit comprises wheels and a vehicle frame. The wheels are installed on the lower surface of the vehicle frame. The columns are fixedly installed at equal intervals in the middle of the upper surface of the vehicle frame. Border bricks are built around the upper surface of the vehicle frame, and a zirconium-containing fiber blanket is filled in the internal space surrounded by the border bricks.

[0011] Preferably, it further comprises a bottom cross beam. The two ends of the lower surface of the bottom cross beam are abutted against the upper surface of the border bricks, the middle of the lower surface of the bottom cross beam is abutted against the upper surface of the zirconium-containing fiber blanket, and an alumina hollow plate covers the upper surface of the bottom cross beam.

[0012] Compared with the prior art, the beneficial technical effects of the utility model are as follows:

[0013] The ventilation kiln loading structure for porcelain insulators of the utility model is fixedly installed on the kiln car unit through columns. The sagger, the cross beam and the longitudinal beam are installed on the columns by lapping, which is convenient for loading porcelain insulator blanks with different sizes and specifications, ensures the gas circulation during the firing process to make the atmosphere uniform, and at the same time can ensure the kiln loading density and make full use of the longitudinal space of the kiln furnace. Moreover, the lapping method reduces the usage amount of bolts, and avoids the deformation of bolts when they are heated at high temperature, which affects the yield rate of the porcelain insulator blanks after firing. Further, the alumina hollow plate with high temperature resistance covers the zirconium-containing fiber blanket, avoiding the pollution products such as flying flocs generated by the zirconium-containing fiber blanket under the action of high temperature and the fan from floating onto the glaze surface of the porcelain insulator blanks, resulting in the generation of defective products. Description of the Drawings

[0014] The following further describes the utility model with reference to the drawings.

[0015] Figure 1 It is a front view schematic diagram of a ventilation kiln loading structure for porcelain insulators of the utility model;

[0016] Figure 2 It is a matching schematic diagram of a porcelain insulator and a sagger of the utility model;

[0017] Figure 3 This is a three-dimensional schematic diagram of the sagger of the present utility model;

[0018] Figure 4 This is a three-dimensional schematic diagram of a ventilation kiln loading structure for porcelain insulators of the present utility model;

[0019] Figure 5 This is a side view schematic diagram of a ventilation kiln loading structure for porcelain insulators of the present utility model;

[0020] Figure 6 This is a top view schematic diagram of the kiln car unit of the present utility model;

[0021] Figure 7 This is a front view schematic diagram of the kiln car unit of the present utility model.

[0022] Description of the drawings: 1. Sagger; 101. Lapping plate; 102. Connecting plate; 103. Limiting plate; 104. Bearing plate; 2. Column through-hole; 3. Column; 4. Longitudinal beam; 5. Cross beam; 6. Kiln car unit; 7. Alumina hollow plate; 8. Bottom cross beam; 9. Zirconium-containing fiber blanket; 10. Perimeter brick; 11. Wheel; 12. Frame. Detailed implementation manners

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model clearer, the following further details the present utility model with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0024] As Figures 1-7 shown, a ventilation kiln loading structure for porcelain insulators includes a sagger 1, columns 3 and a kiln car unit 6. The columns 3 are fixedly installed on the upper surface of the kiln car unit 6. A column through-hole 2 is provided between two adjacent columns 3. A cross beam 5 is placed in the column through-hole 2. The longitudinal beam 4 is lapped on the upper surface of the cross beam 5, and the sagger 1 is lapped on the longitudinal beam 4; the columns 3 are inserted into the kiln car unit 6, and holes are drilled in the columns 3 at certain intervals. The cross beam 5 is connected by inserting into the column holes 2. The longitudinal beam 4 is lapped on the main beam 5 in parallel with a certain width, and the sagger 1 is erected on two cross beams 4; among them, the interval of the column holes can be freely set according to different product types. As many column through-holes 2 as possible are opened on the columns 3 as small as possible while ensuring strength. The cross beam 5 controls the layer spacing by inserting into column through-holes 2 at different heights to adapt to product firing.

[0025] Specifically, the sagger 1 includes a lapping plate 101 and a bearing plate 104. The lapping plate 101 is fixedly connected to both sides of the bearing plate 104 through a connecting plate 102. Limiting plates 103 are fixedly installed on the other two opposite sides of the bearing plate 104. An anti-adhesion coating is applied on the upper surface of the bearing plate 104 to prevent the porcelain insulator green body from being supported by the sagger 1. By applying the anti-adhesion coating between the green body and the sagger, their mutual adhesion is avoided.

[0026] Specifically, the kiln car unit 6 includes wheels 11 and a frame 12. The wheels 11 are installed on the lower surface of the frame 12. Columns 3 are fixedly installed at equal intervals in the middle of the upper surface of the frame 12. Perimeter bricks 10 are built around the upper surface of the frame 12. A zirconium-containing fiber blanket 9 is filled in the internal space surrounded by the perimeter bricks 10. It also includes a bottom cross beam 8. The two ends of the lower surface of the bottom cross beam 8 are in contact with the upper surface of the perimeter bricks 10, and the middle of the lower surface of the bottom cross beam 8 is in contact with the upper surface of the zirconium-containing fiber blanket 9. An alumina hollow plate 7 covers the upper surface of the bottom cross beam 8. The alumina hollow plate is placed on three bottom cross beams, and the zirconium-containing fiber blanket is filled below. Due to long-term high-temperature firing, if the alumina hollow plate is not laid on the upper part, the flying flocs and other contaminants generated by the zirconium-containing fiber blanket under the action of high temperature and the fan will fall on the glaze surface of the porcelain insulator green body, reducing the yield. Further, the perimeter around the upper surface of the frame is built with refractory perimeter bricks to ensure the durability of the kiln car unit in a high-temperature environment.

[0027] Example 1

[0028] The size of the column 3 is 100mm * 100mm * 2430mm * 12mm. There are two rows of columns 3 installed on the upper surface of the frame 12. The number of columns 3 in each row is 5, and the distance between every two columns 3 is 300mm. The size of the column through-hole 2 on the column 3 is 80mm in height and 30mm in width, and the hole spacing is 60mm.

[0029] The cross beam has a size of 30mm * 60mm * 1600mm and is connected to the column 3 by inserting it into the column through-hole 2. The longitudinal beams 4 are parallelly placed on the cross beam 5 at an interval width of 300mm. Then, the sagger 1 containing the porcelain insulator green body is placed on the two longitudinal beams 4. By inserting through the holes into the cross beam 5, the layer spacing is increased to accommodate larger insulator green bodies, thus completing the operation of loading the insulator green bodies into the kiln.

[0030] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or seal including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or seal.

[0031] The above-described embodiments are only descriptions of the preferred embodiments of the present invention and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A ventilation kiln loading structure for porcelain insulators, characterized in that: It includes a sagger (1), a column (3) and a kiln car unit (6). The column (3) is fixedly installed on the upper surface of the kiln car unit (6). A column through-hole (2) is formed between two adjacent columns (3). A cross beam (5) is placed in the column through-hole (2). A longitudinal beam (4) is lapped on the upper surface of the cross beam (5). The sagger (1) is lapped on the longitudinal beam (4).

2. The ventilation kiln loading structure of a porcelain insulator according to claim 1, characterized in that: The sagger (1) includes a lapping plate (101) and a bearing plate (104). The lapping plate (101) is fixedly connected to the two opposite sides of the bearing plate (104) through a connecting plate (102). Limiting plates (103) are fixedly installed on the other two opposite side edges of the bearing plate (104).

3. The ventilation kiln loading structure of a porcelain insulator according to claim 2, characterized in that: An anti-adhesion coating is applied on the upper surface of the bearing plate (104).

4. The ventilation kiln loading structure of a porcelain insulator according to claim 1, characterized in that: The kiln car unit (6) includes wheels (11) and a vehicle frame (12). The wheels (11) are installed on the lower surface of the vehicle frame (12). The column (3) is fixedly installed in the middle of the upper surface of the vehicle frame (12). Border bricks (10) are built around the upper surface of the vehicle frame (12). A zirconium-containing fiber blanket (9) is filled in the internal space surrounded by the border bricks (10).

5. A ventilation kiln loading structure for porcelain insulators according to claim 4, characterized in that: It further includes a bottom cross beam (8). The two ends of the lower surface of the bottom cross beam (8) are in contact with the upper surface of the border bricks (10). The middle of the lower surface of the bottom cross beam (8) is in contact with the upper surface of the zirconium-containing fiber blanket (9). An alumina hollow plate (7) is installed on the upper surface of the bottom cross beam (8).

Images