Material real-time weighing device for sintering process of box-type furnace

Abstract

The utility model provides a material real-time weighing device for the sintering process of a box-type furnace, which comprises a frame, a box-type furnace body, a support beam, a roller bar, support rods and a weighing module, the frame supports the box-type furnace body, the roller bar penetrates through a through hole and is connected with the support beam, the support rods are arranged at four corners of the support beam, the support rods penetrate through holes and extend out of the box-type furnace body, and the weighing module is arranged on the frame. The weighing module is arranged at the lower end of the supporting rod; and the opening is flexibly connected with the supporting rod. By means of the design, the roller bars used for containing the saggar are arranged independently of the box-type furnace body; the box-type furnace is small in heat loss in the sintering process, materials are weighed in the high-temperature sintering process, and then the burning loss reaction condition of the lithium battery positive electrode material in the high-temperature sintering process is explored; the cooling structure of the supporting rod prevents high-temperature heat of the furnace body from being transmitted to the weighing module through the supporting rod to cause damage to the module. The box-type furnace is simple in structure, convenient to transform, low in manufacturing cost, high in weighing precision and beneficial to judgment of the sintering reaction weight condition, and the product quality is improved.

Description

Technical Field

[0001] This utility model belongs to the field of box furnace technology, and in particular relates to a real-time material weighing device for the sintering process of a box furnace. Background Technology

[0002] Box furnaces are crucial tools for researching and developing novel lithium-ion battery cathode materials. Researchers can utilize box furnaces for experiments such as material synthesis, structural optimization, and performance testing, exploring the impact of different material systems and process conditions on performance. This provides data support for material improvement and innovation. Lithium-ion battery cathode materials may experience burn-off during high-temperature sintering, primarily manifested as lithium loss. Current box furnaces cannot weigh the materials during the sintering process to assess the sintering reaction status. Utility Model Content

[0003] This invention provides a real-time material weighing device for a box furnace sintering process, which can effectively solve the above-mentioned problems.

[0004] This utility model is implemented as follows:

[0005] A real-time material weighing device for a box furnace sintering process includes a frame, a box furnace body, support beams, rollers, support rods, and a weighing module. The frame supports the box furnace body. Two support beams are located on either side of the furnace cavity within the box furnace body. Through holes are provided on both sides of the furnace cavity of the box furnace body, with the diameter of the through holes being larger than the diameter of the rollers. The rollers pass through the through holes and are mounted on the two support beams. Support rods are located at the four corners of the support beams. An opening is provided at the lower end of the box furnace body, through which the support rods extend out of the box furnace body. The weighing module is connected to the lower end of each support rod. A first sleeve is provided at the lower end of the opening, and a second sleeve is provided below the first sleeve. The first and second sleeves are fitted onto the support rods, with the inner diameters of the first and second sleeves being larger than the outer diameter of the support rods. The lower end of the second sleeve is sealed to the support rod, and a flexible connection is provided between the first and second sleeves.

[0006] As a further improvement, an air inlet pipe is provided on the side wall of the second sleeve or the first sleeve.

[0007] As a further improvement, ceramic support rollers are provided on the bottom of the corresponding rollers on the support beam.

[0008] As a further improvement, the support rod is provided with a first support rod, a second support rod, a sleeve, and a fixing bolt. The first support rod is connected to the support beam, the second support rod is connected to the weighing module, the upper end of the sleeve is fixed to the first support rod, the upper end of the second support rod is inserted into the sleeve, the side of the sleeve is provided with an adjusting screw hole, and the fixing bolt passes through the adjusting screw hole and abuts against the second support rod for fixation.

[0009] As a further improvement, the flexible connection is a rubber sleeve.

[0010] The beneficial effects of this utility model are as follows: This application, through the design of the frame, box furnace body, support beam, rollers, support rods, and weighing module, allows the rollers used to place the materials in the saggers to be set independently of the box furnace body. This box furnace exhibits minimal heat loss during sintering, minimizing its impact on the material sintering process. It enables the weighing of materials during high-temperature sintering, thereby allowing for the investigation of the burn-off reaction of lithium-ion battery cathode materials during high-temperature sintering. Furthermore, the addition of a cooling structure for the support rods prevents the high-temperature heat from the furnace body from being transferred to the weighing module via the support rods, thus avoiding damage to the module. The box furnace structure of this application is simple, easy to modify, has low manufacturing costs, and high weighing accuracy, which is beneficial for determining the weight of materials during the sintering process, thereby improving product quality. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0012] Figure 1 This is a schematic diagram of the structure of an embodiment of a real-time material weighing device for a box furnace sintering process according to this utility model;

[0013] Figure 2 This is another structural schematic diagram provided by an embodiment of a real-time material weighing device for a box furnace sintering process according to this utility model;

[0014] Figure 3 yes Figure 1 A magnified structural diagram of part A in the middle.

[0015] Figure label:

[0016] Frame 1; Box-type furnace body 2; Through hole 21; Opening 22; First sleeve 23; Flexible connection 24; Support beam 3; Ceramic support roller 31; Roller 4; Support rod 5; Second sleeve 51; Gas inlet pipe 52; First support rod 53; Second support rod 54; Sleeve 55; Fixing bolt 56; Weighing module 6. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely to represent selected embodiments of this utility model.

[0018] In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0019] In the description of this utility model, the terms "upper", "middle", "side", "side", "upper side", "end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] Reference Figure 1-3 As shown, a real-time material weighing device for a box furnace sintering process includes a frame 1, a box furnace body 2, support beams 3, rollers 4, support rods 5, and a weighing module 6. The frame 1 supports the box furnace body 2. Two support beams 3 are respectively located on both sides of the furnace cavity within the box furnace body 2. Through holes 21 are provided on both sides of the furnace cavity of the box furnace body 2, and the diameter of the through holes 21 is larger than the diameter of the rollers 4. The rollers 4 pass through the through holes 21 and are mounted on the two support beams 3. The support rods 5 are located at the four corners of the support beams 3. The lower end of the 2 has an opening 22, through which the support rod 5 extends out of the box furnace body 2. The weighing module 6 is connected to the lower end of each support rod 5. The lower end of the opening 22 has a first sleeve 23, and the lower part of the first sleeve 23 has a second sleeve 51. The first sleeve 23 and the second sleeve 51 are fitted onto the support rod 5, and the inner diameter of the first sleeve 23 and the second sleeve 51 is larger than the outer diameter of the support rod 5. The lower end of the second sleeve 51 is sealed to the support rod 5. A flexible connection 24 is provided between the first sleeve 23 and the second sleeve 51.

[0021] Roller 4 is used to place the sagger, which is used to fill the sintering material.

[0022] The roller 4 spans the furnace cavity within the box-type furnace body 2, positioned above the heating rods. A gap exists between the roller 4 and the through-hole 21, allowing the roller 4 some vertical floating space when the sagger filled with sintering material is placed on it. This ensures that the mass obtained by the weighing module 6 includes only the weight of the support beam 3, roller 4, support rod 5, sagger, and its material. The weighing module 6 is a conventional precision electronic scale; the model of the electronic scale is selected according to requirements. The weighing module 6 is connected to the support beam 3 via the support rod 5, and the roller 4 is placed on the support beam 3. The opening 22 of the box-type furnace body 2 is connected to the support rod 5 via a flexible connection 24, ensuring that the mass obtained by the weighing module 6 includes only the support beam 3, roller 4, support rod 5, sagger, and its material, thereby obtaining the real-time change in the material's mass during the high-temperature sintering process.

[0023] This application provides a first sleeve 23 at the lower end of the opening 22, and a second sleeve 51 below the first sleeve 23. The first sleeve 23 and the second sleeve 51 are fitted onto the support rod 5, with the inner diameter of the first sleeve 23 and the second sleeve 51 being larger than the outer diameter of the support rod 5. The lower end of the second sleeve 51 is sealed to the support rod 5, and the first sleeve 23 and the second sleeve 51 are connected by a flexible connection 24. The first sleeve 23 and the second sleeve 51 are separated and sealed by the flexible connection 24. This avoids the formation of a rigid support between the support rod 5 and the second sleeve 51 and the box furnace body 2 and the first sleeve 23, so that the mass obtained by the weighing module 6 only includes the support beam 3, the roller 4, the support rod 5, the sagger, and their materials. The inner diameter of the first sleeve 23 and the second sleeve 51 is larger than the outer diameter of the support rod 5. The lower end of the second sleeve 51 is sealed to the support rod 5. The first sleeve 23 and the second sleeve 51 are connected by a soft connection 24 to form a relatively sealed space between the box furnace body 2 and the weighing module 6 to obtain the change value of the material mass in the high-temperature sintering process in the sagger on the roller 4.

[0024] Furthermore, an air inlet pipe 52 is provided on the side wall of the second sleeve 51 or the first sleeve 23.

[0025] Air is introduced through the air inlet pipe 52 to cool the support rod 5, preventing heat from being transferred to the weighing module 6 via the support rod 5 and causing damage to the module. The introduced air enters the box-type furnace body 2 through the first sleeve 23, and then enters the furnace cavity through the gap in the through hole 21, preventing heat from escaping from the kiln.

[0026] Furthermore, ceramic support rollers 31 are respectively provided on the bottom of the support beam 3 corresponding to the rollers 4.

[0027] The ceramic support roller 31 provides support and positioning for the roller bar 4.

[0028] Furthermore, the support rod 5 is provided with a first support rod 53, a second support rod 54, a sleeve 55, and a fixing bolt 56. The first support rod 53 is connected to the support beam 3, the second support rod 54 is connected to the weighing module 6, the upper end of the sleeve 55 is fixed to the first support rod 53, the upper end of the second support rod 54 is inserted into the sleeve 55, the side of the sleeve 55 is provided with an adjusting screw hole, and the fixing bolt 56 passes through the adjusting screw hole and abuts against the second support rod 54 for fixation.

[0029] By adjusting the distance between the first support rod 53 and the second support rod 54, and then fixing them with the sleeve 55 and the fixing bolt 56, the height of each corner support rod 5 can be adjusted, thereby adjusting the horizontality of both sides of the adjusting roller 4.

[0030] Furthermore, the flexible connection 24 is a rubber sleeve.

[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A real-time material weighing device for a box furnace sintering process, characterized in that, The system includes a frame, a box-type furnace body, support beams, rollers, support rods, and a weighing module. The frame supports the box-type furnace body. Two support beams are located on either side of the furnace cavity within the box-type furnace body. Through holes are provided on both sides of the furnace cavity of the box-type furnace body, with the diameter of the through holes being larger than the diameter of the rollers. The rollers pass through the through holes and are mounted on the two support beams. Support rods are located at the four corners of the support beams. An opening is provided at the lower end of the box-type furnace body, through which the support rods extend out of the box-type furnace body. The weighing module is connected to the lower end of each support rod. A first sleeve is located at the lower end of the opening, and a second sleeve is located below the first sleeve. The first and second sleeves are fitted onto the support rods, with the inner diameters of the first and second sleeves being larger than the outer diameter of the support rods. The lower end of the second sleeve is sealed to the support rod, and a flexible connection is provided between the first and second sleeves.

2. The real-time material weighing device for a box furnace sintering process according to claim 1, characterized in that, An air inlet pipe is provided on the side wall of the second sleeve or the first sleeve.

3. The real-time material weighing device for a box furnace sintering process according to claim 1, characterized in that, Ceramic rollers are provided at the bottom of the corresponding rollers on the support beam.

4. The real-time material weighing device for a box furnace sintering process according to claim 1, characterized in that, The support rod includes a first support rod, a second support rod, a sleeve, and a fixing bolt. The first support rod is connected to the support beam, and the second support rod is connected to the weighing module. The upper end of the sleeve is fixed to the first support rod, and the upper end of the second support rod is inserted into the sleeve. The side of the sleeve is provided with an adjusting screw hole, and the fixing bolt passes through the adjusting screw hole and abuts against the second support rod for fixation.

5. The real-time material weighing device for a box furnace sintering process according to claim 1, characterized in that, The flexible connection is a rubber sleeve.

Images