Sectional type roasting barrel for isostatic pressing of graphite

Abstract

The utility model belongs to the field of roasting barrels, and particularly relates to a sectional type roasting barrel for isostatic pressing of graphite, which comprises a bottom plate, a plurality of barrel bodies are sequentially arranged at the top of the bottom plate from bottom to top, flanges are mounted at two ends of each barrel body, and a plurality of support frames are mounted on the outer wall of each barrel body at equal intervals. The gaskets are embedded between the upper barrel body and the lower barrel body and between the barrel bodies and the bottom plate, every two adjacent flanges are connected through a bolt assembly, the lowest flange is connected with the bottom plate through a bolt assembly, and positioning mechanisms are arranged between every two adjacent flanges and between the lowest flange and the bottom plate. The sectional type roasting barrel is reasonable in design, simple in structure and convenient and fast to assemble and disassemble, products can be loaded section by section and filled with sand during barrel loading through modular sectional design, the top section is disassembled to accelerate heat dissipation and directly remove sand to take pieces during cooling, the problems that a traditional integrated roasting barrel furnace is slow in cooling and high in sand outlet risk are solved, and the production progress is accelerated.

Description

Technical Field

[0001] This utility model relates to the field of roasting barrel technology, and in particular to a segmented roasting barrel for isostatic graphite. Background Technology

[0002] In the production of isostatic graphite, the first firing is one of the key processes, which directly affects the density and mechanical properties of graphite products.

[0003] Traditional roasting casks generally suffer from low loading and unloading efficiency and complex operation due to their fixed structure. Existing roasting casks mostly use a single-walled structure, making it easy for products to become unstable during hoisting due to uneven surfaces or dimensional differences, requiring repeated adjustments. After each roasting cycle, the products need to cool to a certain temperature before being removed from the cask, resulting in a long cooling time. Furthermore, removing the product requires removing the insulating sand or emptying the entire cask, which is quite difficult. These problems limit production efficiency. Therefore, there is an urgent need for a roasting cask with a flexible structure that facilitates segmented loading and unloading to optimize the process flow, improve product quality, shorten the cooling time after each roasting cycle, and accelerate production progress. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a segmented calcining barrel for isostatic graphite.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A segmented calcining barrel for isostatic graphite includes a bottom plate, with multiple barrels arranged sequentially from bottom to top on the top of the bottom plate. Flanges are installed at both ends of each barrel, and multiple support frames are installed at equal intervals on the outer wall of each barrel. Gaskets are embedded between upper and lower barrels and between the barrel and the bottom plate. Adjacent flanges are connected to each other and between the bottom flange and the bottom plate by bolt assemblies. A positioning mechanism is provided between adjacent flanges and between the bottom flange and the bottom plate.

[0007] Preferably, the number of barrels is set to two to eight, and the roasting barrel is composed of two to eight barrels connected together.

[0008] Preferably, two lifting lugs are fixedly installed on the outer wall of the barrel, and the two lifting lugs are arranged symmetrically.

[0009] Preferably, the flange is matched with the barrel body in terms of material and pressure, the flange is fitted onto both ends of the barrel body, and its flange neck is welded to the outer diameter of the barrel body.

[0010] Preferably, the support frame is arranged along the height direction of the barrel and arrayed at equal angles on the outer wall of the barrel, with a quantity of four frames, and both ends of the support frame are connected to the flange.

[0011] Preferably, the gasket is a flexible graphite gasket and a high-temperature sealant is applied at the connection point with the flange.

[0012] Preferably, the bolt assembly includes mounting holes, fixing bolts, and nuts. Multiple mounting holes are provided on both the flange and the base plate. The fixing bolts pass through two corresponding mounting holes and are threaded with nuts.

[0013] Preferably, the positioning mechanism includes positioning holes and positioning rods. Positioning holes are provided on the top of the bottom plate and the flange located above the barrel body, and a positioning rod adapted to the corresponding positioning hole is fixedly installed on the bottom of the flange located below the barrel body.

[0014] The beneficial effects of this utility model are as follows: Since the products to be roasted are prone to instability during the barrel loading process due to uneven surfaces or size differences, requiring repeated adjustments to their position, the product can be loaded into sections and filled with sand. Furthermore, after one roasting, the product needs to be cooled to a certain temperature before it can be removed from the barrel, which takes a long time. The barrel sections can be disassembled sequentially from the top, and when the roasted product leaks out, clamps can be used to move the product to a designated area for cooling, thereby shortening the cooling time of one roasting and accelerating the product production progress. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a segmented calcining barrel for isostatic graphite proposed in this utility model.

[0016] Figure 2 This is a schematic diagram of the exploded structure of a segmented calcining barrel for isostatic graphite proposed in this utility model.

[0017] Figure 3 This is a bottom-view three-dimensional structural diagram of the barrel body of a segmented calcining barrel for isostatic graphite proposed in this utility model.

[0018] In the diagram: 1. Barrel body; 2. Lifting lug; 3. Flange; 4. Support frame; 5. Gasket; 601. Mounting hole; 602. Bolt; 603. Nut; 7. Base plate; 801. Positioning hole; 802. Positioning rod. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.

[0020] This application discloses a segmented calcining barrel for isostatic graphite.

[0021] Reference Figure 1-3A segmented calcining barrel for isostatic graphite includes a base plate 7. Multiple barrels are arranged sequentially from bottom to top on the top of the base plate 7. Flanges 3 are installed at both ends of the barrel 1. Multiple support frames 4 are installed at equal intervals on the outer wall of the barrel 1. Gaskets 5 are embedded between the upper and lower barrels 1 and between the barrel 1 and the base plate 7. Two adjacent flanges 3 and the lowermost flange 3 and the base plate 7 are connected by bolts 602. A positioning mechanism is provided between two adjacent flanges 3 and between the lowermost flange 3 and the base plate 7. The number of barrels 1 is set to two to eight, and the calcining barrel is composed of two to eight barrels 1 connected together.

[0022] In this embodiment, two lifting lugs 2 are fixedly installed on the outer wall of the barrel 1, and the two lifting lugs 2 are symmetrically arranged. The flange 3 is matched with the barrel 1 in terms of material and pressure. The flange 3 is fitted on both ends of the barrel 1, and its neck is welded to the outer diameter of the barrel 1 to ensure uniform welding, no air holes, or integral pressing with the barrel. The bottom plate 7 is made of the same high-temperature resistant alloy material as the barrel 1 (such as 310S stainless steel).

[0023] In this embodiment, the support frame 4 is arranged along the height direction of the barrel 1 and is arranged at a 90° angle on the outer wall of the barrel 1. There are four support frames, and both ends of the support frame 4 are connected to the flange 3. The gasket 5 is a flexible graphite gasket 5 and a high-temperature sealant is applied at the joint with the flange 3.

[0024] In this embodiment, the bolt 602 assembly includes mounting holes 601, fixing bolts 602 and nuts 603. Multiple mounting holes 601 are provided on both the flange 3 and the base plate 7. The fixing bolts 602 pass through two corresponding mounting holes 601 and are threaded with nuts 603. The nuts are high-temperature resistant self-locking nuts that can withstand temperatures ≥1200℃ and comply with GB / T 6175 standards.

[0025] Preferably, the positioning mechanism includes a positioning hole 801 and a positioning rod 802. The bottom plate 7 and the top of the flange 3 located above the barrel 1 are both provided with positioning holes 801. The bottom of the flange 3 located below the barrel 1 is fixedly installed with a positioning rod 802 that matches the corresponding positioning hole 801. The positioning rod 802 and the positioning hole 801 facilitate the positioning of the barrel 1, so that the positions of the mounting holes correspond, which facilitates the installation of bolts 602 and nuts 603.

[0026] The working principle of this utility model:

[0027] Barrel Packing Implementation Steps

[0028] First, the segmented barrel 1 is assembled. During the furnace preparation stage, flexible graphite gaskets 5 are embedded in the sealing grooves of the bottom plate 7 and the flange 3 of the bottom segment barrel 1, and high-temperature sealant (such as aluminum silicate putty) is applied. The barrel 1 and the bottom plate 7 can be positioned by the positioning rod 802 and the positioning hole 801. The bolt 602 is passed through the corresponding mounting hole 601 and the nut is threaded on, which can achieve the purpose of fixing the barrel 1 and the bottom plate 7. The second segment barrel 1 is hoisted above the bottom segment, and the above steps are repeated to splice the segments to the top segment. Finally, it is locked with nuts 603. U-shaped lifting lugs 2 are welded to the outer wall of each segment barrel 1 and a support frame 4 is provided to increase the stability of the barrel 1.

[0029] After the barrel sections are connected, the product to be roasted is vertically placed into the barrel using hoisting equipment, and then filled with insulating sand to complete the barrel filling. During the barrel filling process, if it is inconvenient to adjust the product placement position, excess barrel sections can be removed first for manual adjustment, and then the barrel sections can be reassembled to their original position after the product placement is completed.

[0030] Bucket dispensing implementation steps

[0031] After the first firing, allow the material to cool naturally to below 150℃. Use a crane to transfer the entire firing barrel from the furnace to the workshop. Operators should take protective measures and prepare the barrel for removal. First, remove the nut 603 from the top section and use a hook to move the barrel section away. Allow the insulating sand to flow freely, then remove the flexible graphite gasket 5. If the upper layer of product leaks out, use clamps to transfer the product to a specific area for further natural cooling. If the product has not yet leaked out, use a sand suction machine to insert a suction pipe from the top of barrel 1 to suction out the upper layer of sand until the product is exposed. Then, remove the product for cooling. Hoist and remove the remaining sections of barrel 1, repeating the above steps to remove the graphite products layer by layer. After removing the barrel, check barrel 1, flange 3, nut 603, and gasket 5 for wear. Replace any worn parts immediately.

[0032] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sectional baking pot for isostatic pressing graphite, characterized by, Includes a base plate (7), and multiple barrels (1) are arranged sequentially from bottom to top on the top of the base plate (7). Flanges (3) are installed at both ends of the barrels (1), and multiple support frames (4) are installed at equal intervals on the outer wall of the barrels (1). Gasket (5) is embedded between the upper and lower barrels (1) and between the barrel and the bottom plate (7). The two adjacent flanges (3) and the bottom flange (3) and the bottom plate (7) are connected by bolt (602) assembly. A positioning mechanism is provided between the two adjacent flanges (3) and between the bottom flange (3) and the bottom plate (7).

2. The sectional baking barrel for isostatic pressing graphite according to claim 1, characterized in that, The number of barrels (1) is set to two to eight, and the roasting barrel is composed of two to eight barrels (1) connected together.

3. The sectional baking barrel for isostatic pressing graphite according to claim 1, characterized in that, The outer wall of the barrel (1) is fixedly installed with two lifting lugs (2), and the two lifting lugs (2) are symmetrically arranged.

4. The sectional baking drum for isostatic pressing graphite according to claim 1, characterized in that, The flange (3) is material and pressure matched with the barrel body (1). The flange (3) is fitted on both ends of the barrel body (1), and its neck is welded to the outer diameter of the barrel body (1).

5. The sectional baking drum for isostatic pressing graphite according to claim 1, characterized in that, The support frame (4) is arranged along the height direction of the barrel (1) and arrayed at a 90° angle on the outer wall of the barrel (1). There are four support frames, and both ends of the support frame (4) are connected to the flange (3).

6. The sectional baking pot for isostatic pressing graphite according to claim 1, wherein The gasket (5) is a flexible graphite gasket (5) and a high-temperature sealant is applied at the joint with the flange (3).

7. The sectional baking drum for isostatic pressing graphite according to claim 1, characterized in that, The bolt (602) assembly includes mounting holes (601), fixing bolts (602) and nuts (603). Multiple mounting holes (601) are provided on the flange (3) and the base plate (7). The fixing bolts (602) pass through two corresponding mounting holes (601) and are threaded with nuts (603).

8. The sectional baking drum for isostatic pressing graphite according to claim 1, characterized in that, The positioning mechanism includes a positioning hole (801) and a positioning rod (802). The bottom plate (7) and the top of the flange (3) located above the barrel (1) are both provided with positioning holes (801). The bottom of the flange (3) located below the barrel (1) is fixedly installed with a positioning rod (802) that matches the corresponding positioning hole (801).

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