Grinding ball heat treatment device

Abstract

The utility model discloses a heat treatment device for grinding balls. The heat treatment device comprises a furnace body, a heating inner container, a driving assembly and a sealing door, the heating inner container controls feeding and discharging through forward and reverse rotation and is matched with the spiral blades to guide the grinding balls to enter the heat treatment cavity to be evenly heated. A plurality of uniformly arranged electric heating pipes are arranged in the furnace body, so that the grinding balls are uniformly heated through the rotation of the heating liner, and the phenomenon of non-uniform heating is avoided. The driving assembly is composed of a driving motor and a gear transmission system and used for driving the heating inner container to rotate, rapid feeding and discharging of the grinding balls are achieved, manual operation is reduced, and the working efficiency is improved. In addition, the sealing door is matched with the rotating connector through the locking mechanism, so that the sealing performance and operation convenience are ensured. The device solves the problems that traditional heat treatment equipment is uneven in heating, complex in feeding and discharging, low in production efficiency and the like, has the advantages of being even in heating, high in automation degree, easy and convenient to operate and the like, and is suitable for efficient heat treatment of grinding balls.

Description

Technical Field

[0001] This utility model belongs to the technical field of heat treatment equipment, and specifically relates to a heat treatment device for grinding balls. Background Technology

[0002] Grinding balls, as grinding media, are widely used in ball mills for crushing and mixing materials such as ores, ceramics, and chemicals. During use, the quality of the grinding balls' material and heat treatment process directly affects their service life and performance.

[0003] Currently, the main heat treatment method for grinding balls uses furnace heating, employing electric heating tubes to heat the grinding balls. However, traditional grinding ball heat treatment equipment suffers from problems such as uneven heating, complex heating process control, and inconvenient material discharge. Specifically, because grinding balls are prone to localized overheating or underheating during the heating process, the performance of the heat-treated grinding balls is unstable, failing to meet the requirements of high efficiency and long service life. Furthermore, in traditional equipment, the feeding and discharging processes of grinding balls are cumbersome and require manual operation, significantly increasing labor intensity and time costs in the production process.

[0004] Furthermore, most existing equipment fails to adequately consider the uniformity and efficiency of the grinding balls during the heating process. It typically relies on a relatively simple rotation method to move the heating chamber, neglecting to optimize the spiral guide structure and drive system. This results in uneven distribution of grinding balls during heat treatment, affecting the heat treatment effect. More importantly, the existing technology lacks efficient automated design for the discharge process, leading to a slow discharge speed of the grinding balls after heat treatment, increasing the overall operating cycle and energy consumption of the equipment. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a grinding ball heat treatment device, which can improve the heating uniformity during the grinding ball heat treatment process, shorten the feeding and discharging time, and improve the level of automation.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A grinding ball heat treatment apparatus includes a furnace body and a heating inner liner rotatably installed inside the furnace body. The heating inner liner is used to hold grinding balls and perform heat treatment on them. A sealing door is installed on the front side of the furnace body to seal the opening of the heating inner liner.

[0008] The heating inner liner controls the feeding and discharging by rotating in both forward and reverse directions. A drive assembly that drives the heating inner liner to rotate is fixed on the rear side of the furnace body.

[0009] Furthermore, a heat treatment chamber is provided on the inner side of the heating liner, and multiple spiral blades are provided on the inner surface of the heating liner near the opening. A rotating shaft is fixed at the rear end of the heating liner, and the rotating shaft passes through the rear side wall of the furnace body and is connected to the drive assembly.

[0010] Furthermore, the drive assembly includes a rotating gear fixed on a rotating shaft and a drive motor fixed on the furnace body by a fixed bracket, with a drive gear meshing with the rotating gear fixed on the output shaft of the drive motor.

[0011] Furthermore, multiple evenly arranged electric heating tubes are installed between the inner side of the furnace body and the heating inner liner, and a support ring is installed at the front opening of the furnace body to provide rotational support for the front end of the heating inner liner.

[0012] Furthermore, one side of the sealing door is rotatably connected to the furnace body via a rotating joint, and the other side of the sealing door is locked to the furnace body via a locking mechanism. A handle is fixed on the front side of the sealing door, and a connecting block that cooperates with the locking mechanism is fixed on the other side of the sealing door. A U-shaped groove is provided on the side of the connecting block.

[0013] Furthermore, the locking mechanism includes a rotating bracket fixed to the furnace body and a rotating block rotatably mounted on the rotating bracket. A screw is fixed on the rotating block and locked in the U-shaped groove by rotation. The screw passes through the U-shaped groove and is threaded with a rotating handle.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] Firstly, traditional heat treatment devices for grinding balls suffer from uneven heating during the heating process, which can easily lead to unstable heat treatment results. This device, by employing multiple evenly arranged electric heating tubes combined with the continuous rotation of the heating chamber, ensures uniform heat distribution during the heating process. The rotation of the heating chamber, along with the guiding action of the spiral blades, keeps the grinding balls in a constant state of tumbling, preventing any areas from not being fully heated, effectively improving the uniformity of heat treatment, and ensuring the overall quality and performance of the grinding balls.

[0016] Secondly, in existing equipment, the feeding and discharging processes of grinding balls are cumbersome and rely on manual operation, increasing operational difficulty and time costs. This invention achieves automatic feeding and discharging of grinding balls by incorporating a sealing door, rotating gears, and spiral blades. During feeding, the sealing door opens, allowing the grinding balls to smoothly enter the heating chamber and be guided to the heat treatment chamber by the spiral blades. During discharging, the sealing door is fixed by a locking mechanism, and the drive motor controls the heating chamber to rotate in the opposite direction, quickly discharging the heat-treated grinding balls. This process automates operations, reduces manual intervention, improves work efficiency, and lowers labor intensity.

[0017] Furthermore, existing equipment suffers from slow material discharge, resulting in a slow discharge rate of grinding balls after heat treatment. This device, through the coordinated design of the spiral blades and the heated inner liner, allows the grinding balls to be quickly guided and discharged through the rotation of the inner liner. The drive motor controls the forward and reverse rotation of the heated inner liner, making the feeding and discharging process of the grinding balls more efficient and smoother, reducing the production cycle and improving overall production efficiency.

[0018] Finally, the heating system of traditional equipment is relatively simple and fails to fully consider the different heating requirements of the grinding balls. The electric heating tubes of this invention adopt a uniform arrangement design, and the rotating design of the heating inner tank ensures that the grinding balls do not stagnate or heat unevenly during the heating process, thereby improving the heat treatment effect of the equipment. The heating inner tank and electric heating tubes, made of high-temperature resistant alloy materials, not only improve the durability of the equipment but also extend its service life. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the heating inner liner of this utility model;

[0021] Figure 3 This is a schematic diagram of the drive component of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the furnace body of this utility model;

[0023] Figure 5 This is a schematic diagram of the sealing door of this utility model;

[0024] Figure 6 This is a schematic diagram of the locking mechanism of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Sealed door; 11. Rotary joint; 12. Handle; 13. Connecting block; 2. Heating inner liner; 21. Spiral blade; 22. Heat treatment chamber; 23. Rotating shaft; 3. Furnace body; 31. Support ring; 4. Locking mechanism; 41. Rotating handle; 42. Rotating bracket; 43. Screw; 44. Rotating block; 5. Rotating gear; 6. Drive motor; 7. Drive gear; 8. Fixed bracket. Detailed Implementation

[0027] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0028] like Figure 1 As shown, a grinding ball heat treatment device includes a furnace body 3 and a heating inner liner 2 rotatably installed inside the furnace body 3. The heating inner liner 2 is used to hold the grinding balls and perform heat treatment on them. The heating inner liner 2 is made of high-temperature resistant material, such as high-temperature alloy or stainless steel (model: SUS304), which can withstand long-term high-temperature heating and ensure corrosion resistance and thermal expansion stability. A sealing door 1 is installed on the front side of the furnace body 3 to seal the opening of the heating inner liner 2. The sealing door 1 is made of aluminum alloy (model: AL6061) and has good sealing and high-temperature resistance properties.

[0029] The heating inner liner 2 controls feeding and discharging via forward and reverse rotation. During feeding, the sealing door 1 is rotatably connected to the furnace body 3 via a rotating joint 11. When opened, it allows the grinding balls to smoothly enter the heating inner liner 2, and the heating inner liner 2, guided by the spiral blades 21, guides the grinding balls into the heat treatment chamber 22. During discharging, the locking mechanism 4 of the sealing door 1 is released, the sealing door 1 opens, and the drive assembly rotates the heating inner liner 2 in the reverse direction, quickly discharging the heat-treated grinding balls. A drive assembly for rotating the heating inner liner 2 is fixed to the rear side of the furnace body 3.

[0030] like Figure 2 As shown, a heat treatment chamber 22 is provided on the inner side of the heating liner 2. This heat treatment chamber 22 serves as a heating chamber specifically for accommodating and heating the grinding balls. Multiple spiral blades 21 are arranged on the inner surface of the heating liner 2 near the opening. These spiral blades 21 are made of high-wear-resistant alloy steel (such as 42CrMo) to withstand the impact and friction of the grinding balls and ensure continuous and effective pushing of the grinding balls into the heat treatment chamber 22 during heating. A rotating shaft 23 is fixed to the rear end of the heating liner 2. The rotating shaft 23 is made of high-temperature resistant steel (model: T10) to ensure its stability and strength under high-temperature conditions. The rotating shaft 23 passes through the rear wall of the furnace body 3 and connects to the drive assembly, enabling the heating liner 2 to rotate in both forward and reverse directions.

[0031] like Figure 3 As shown, the drive assembly includes a rotating gear 5 fixed on a rotating shaft 23 and a drive motor 6 fixed to the furnace body 3 via a fixed bracket 8. The drive motor 6 is an AC motor (model: YZR200L-4) with a power of 3 kilowatts, which can provide sufficient torque to drive the rotation of the heating inner liner 2. A drive gear 7 that meshes with the rotating gear 5 is fixed on the output shaft of the drive motor 6. The meshing method between the rotating gear 5 and the drive gear 7 adopts gear transmission, ensuring stable drive, high transmission efficiency, and precise control.

[0032] like Figure 4As shown, multiple evenly arranged electric heating tubes are installed between the inner side of the furnace body 3 and the heating inner liner 2. These electric heating tubes (model: U-shaped electric heating tube, power 3 kW / each) are made of nickel-chromium alloy, providing stable heating output at high temperatures. The evenly distributed heating tubes inside the furnace body 3 ensure uniform heating of the heating inner liner 2, preventing uneven heat treatment due to localized overheating. A support ring 31, made of high-temperature resistant alloy, is installed at the front opening of the furnace body 3 to provide rotational support for the front end of the heating inner liner 2. This support ring 31 ensures stable support during rotation of the heating inner liner 2, reducing wear and extending its service life.

[0033] like Figure 5 As shown, one side of the sealing door 1 is rotatably connected to the furnace body 3 via a rotating joint 11, and the other side of the sealing door 1 is locked to the furnace body 3 via a locking mechanism 4. A handle 12 is fixed to the front of the sealing door 1, allowing the operator to manually open or close the sealing door. A connecting block 13 that cooperates with the locking mechanism 4 is fixed to the other side of the sealing door 1, and a U-shaped groove is provided on the side of the connecting block 13. The locking mechanism 4 ensures that the sealing door 1 can be firmly fixed during operation, preventing the sealing door from loosening or leaking due to vibration or other reasons during operation.

[0034] like Figure 6 As shown, the locking mechanism 4 includes a rotating bracket 42 fixed to the furnace body 3 and a rotating block 44 rotatably mounted on the rotating bracket 42. A screw 43 is fixed to the rotating block 44 and locked within a U-shaped groove by rotation. A rotating handle 41 is threaded through the U-shaped groove onto the screw 43. The rotating handle 41 is made of high-strength steel (such as 65Mn) to ensure sufficient durability and fatigue resistance. During operation, the rotating handle 41 adjusts the tightness of the screw 43 by rotation, thereby achieving a secure lock on the sealing door 1, ensuring that the temperature inside the furnace body does not leak and guaranteeing the effectiveness of the heat treatment process.

[0035] The working principle of this utility model is as follows: When heat treating the grinding balls, rotate the loose handle 41, then rotate the screw 43 to disengage it from the connecting block 13. Then, use the handle 12 to open the sealing door 1. At this time, control the drive motor 6 to rotate. The drive motor 6 drives the active gear 7 to drive the rotating gear 5 to rotate. The rotating gear 5 drives the heating inner liner 2 to rotate forward through the rotating shaft 23. At this time, the grinding balls are loaded into the heating inner liner 2, and guided by the spiral blade 21, the grinding balls are sent into the heat treatment chamber 22, thus completing the rapid feeding operation of the grinding balls.

[0036] During heat treatment, the sealing door 1 is closed. At this time, the electric heating tube inside the furnace body 3 heats the heating inner liner 2. The heating inner liner 2 continues to rotate forward, so that the grinding balls inside are always tumbling in the heat treatment chamber 22, so that the heating inner liner 2 heats the grinding balls evenly, thereby completing a better heat treatment of the grinding balls.

[0037] After the heat treatment is completed, the sealing door 1 is opened. At this time, the drive motor 6 is controlled to rotate in the opposite direction. The reverse rotation of the drive motor 6 eventually drives the heating inner liner 2 to rotate in the opposite direction. At this time, the grinding balls are discharged outward under the guidance of the spiral blades 21, thus completing the rapid discharge of the grinding balls after heat treatment.

[0038] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A heat treatment apparatus for grinding balls, comprising a furnace body (3), characterized in that: It also includes a heating liner (2) that is rotatably installed inside the furnace body (3), the heating liner (2) being used to hold grinding balls and heat treat them, and a sealing door (1) that seals the opening of the heating liner (2) being installed on the front side of the furnace body (3). The heating inner liner (2) controls the feeding and discharging by forward and reverse rotation, and a drive assembly for driving the heating inner liner (2) to rotate is fixed on the rear side of the furnace body (3).

2. The grinding ball heat treatment apparatus according to claim 1, characterized in that: The inner side of the heating liner (2) is provided with a heat treatment chamber (22), and a plurality of spiral blades (21) are provided on the inner surface of the heating liner (2) near the opening. The rear end of the heating liner (2) is fixed with a rotating shaft (23), which passes through the rear side wall of the furnace body (3) and is connected to the drive assembly.

3. The grinding ball heat treatment apparatus according to claim 2, characterized in that: The drive assembly includes a rotating gear (5) fixed on a rotating shaft (23) and a drive motor (6) fixed on the furnace body (3) by a fixed bracket (8). The output shaft of the drive motor (6) is fixed with a drive gear (7) that meshes with the rotating gear (5).

4. The grinding ball heat treatment apparatus according to claim 1, characterized in that: Multiple evenly arranged electric heating tubes are provided between the inner side of the furnace body (3) and the heating inner liner (2), and a support ring (31) is installed at the front opening of the furnace body (3) to provide rotational support for the front end of the heating inner liner (2).

5. The grinding ball heat treatment apparatus according to claim 1, characterized in that: One side of the sealing door (1) is rotatably connected to the furnace body (3) via a rotating joint (11), and the other side of the sealing door (1) is locked to the furnace body (3) via a locking mechanism (4). A handle (12) is fixed on the front side of the sealing door (1), and a connecting block (13) that cooperates with the locking mechanism (4) is fixed on the other side of the sealing door (1). A U-shaped groove is provided on the side of the connecting block (13).

6. The grinding ball heat treatment apparatus according to claim 5, characterized in that: The locking mechanism (4) includes a rotating bracket (42) fixed on the furnace body (3) and a rotating block (44) rotatably mounted on the rotating bracket (42). A screw (43) is fixed on the rotating block (44) and is locked in the U-shaped groove by rotation. The screw (43) passes through the U-shaped groove and is threaded with a handle (41).

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