A desulfurization ball mill and a relining robot thereof

Abstract

The application belongs to the technical field of ball mills, and particularly relates to a desulfurization ball mill and a relining manipulator thereof, which comprises a cylinder and a lining layer, the lining layer is fixedly arranged on the inner wall of the cylinder, the lining layer is composed of a plurality of rows of lining plates, each row of lining plates is composed of a first lining plate, an intermediate lining plate and a tail lining plate which are sequentially inserted and connected, the intermediate lining plate is provided with a plurality of blocks, only the first bolts on the first lining plate and the tail lining plate need to be fixed by means of an external tightening nut, and the remaining second bolts can be fixed by means of an internal tightening mode. Therefore, most of the fastening in the ball mill can be completed independently in the interior, without the need for cooperation between the interior and the exterior, and the efficiency can be effectively improved.

Description

Technical Field

[0001] This invention belongs to the field of ball mill technology, specifically relating to a desulfurization ball mill and its lining replacement robot. Background Technology

[0002] A desulfurization ball mill is an important industrial piece of equipment, mainly used in flue gas desulfurization systems to process materials such as limestone. Its main components include a feeding section, a discharging section, a rotating section, and a transmission section. These parts work together to ensure the normal operation of the ball mill.

[0003] The feeding section is responsible for feeding raw materials such as limestone into the ball mill, while the discharge section is responsible for discharging the ground material. The rotating section is the core of the ball mill; its cylinder rotates under the drive of a motor, causing the steel balls inside to impact and grind the material. The transmission section provides power to the rotating section, ensuring the stable rotation of the cylinder.

[0004] The desulfurization ball mill is designed with wear resistance and stable operation in mind. Wear-resistant liners are installed inside the mill to extend its service life. Simultaneously, the ball mill employs rolling friction transmission between metal wheels and wear-resistant polymer material wheels, reducing noise and wear, and improving the reliability and stability of the equipment.

[0005] The desulfurization ball mill operates at low speeds, resulting in low oil temperatures in the lubricating oil tank during winter. Electric heating is required to raise the oil temperature and improve lubrication. The cooling water for the ball mill reducer is designed to return to the process water tank, but it is currently being discharged to a recovery water pool and returned to the absorption tower for reuse. This causes an imbalance in the desulfurization water system and affects level control.

[0006] The lining plates need to be replaced after reaching a certain degree of wear. Initially, replacement was done manually, but this was time-consuming and labor-intensive. Currently, robotic arms are primarily used for replacement. However, due to the way the lining plates are secured, the external nuts must be removed before the lining plate can be removed. This requires the internal robotic arm to coordinate with the external nut removal, resulting in low overall efficiency. During installation, the lining plate must also be installed on the inner wall first, and then the external nuts must be tightened to secure it. Therefore, both removal and installation require cooperation between internal and external personnel. Summary of the Invention

[0007] To address the aforementioned technical problems, the present invention aims to provide a desulfurization ball mill that can utilize waste heat from drainage to heat lubricating oil, thus achieving waste heat reuse. Simultaneously, the intermediate liner can be installed and disassembled internally without requiring internal or external coordination, effectively improving replacement efficiency. Another objective of the present invention is to provide a liner-changing robot for replacing the liners.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by the present invention is as follows: A desulfurization ball mill includes a cylinder and a liner layer. A gear ring is fixed on the cylinder and meshes with a gear on the output shaft of a reducer. Cooling water from the reducer is drained and connected to the lubricating oil cooler of the ball mill to heat the lubricating oil using the waste heat from the drain water.

[0009] The lining layer is fixedly installed on the inner wall of the cylinder. The lining layer is composed of several rows of lining plates. Each row of lining plates consists of a first lining plate, an intermediate lining plate, and a tail lining plate inserted in sequence. The intermediate lining plate consists of several pieces. The rear end of the first liner plate and each intermediate liner plate is provided with a slot, and the front end of the tail liner plate and each intermediate liner plate is provided with a plug-in part corresponding to the slot; after the plug-in part is inserted into the slot, the plug-in part is restricted from radial movement. The front end of the first liner plate and the rear end of the tail liner plate are each provided with a first bolt for fixing to the cylinder body. The first bolt passes through the cylinder body and is connected to a first nut, and is fixed by tightening the first nut. The slot is provided with a second bolt for fixing to the cylinder body. The second bolt passes through the cylinder body and is connected to a second nut, and is fixed by tightening the second bolt. The cylinder body is provided with a connecting cylinder that is inserted into the second nut. After the connecting part is inserted into the slot, the head of the second bolt can be blocked by the connecting part. The tail liner plate is provided with radial connection holes at its rear end and at the slot, and the insertion part is provided with radial posts that are inserted into the radial connection holes.

[0010] The upper surfaces of the head liner, intermediate liner, and tail liner are all wavy.

[0011] The connecting cylinder is equipped with positioning balls, and the second nut is equipped with corresponding positioning grooves.

[0012] A liner-changing robot includes a robot and a desulfurization ball mill; the robot is equipped with a clamping and mounting mechanism; the clamping and mounting mechanism includes a fixed plate and a mounting frame, the fixed plate is hinged to the robot, and a first adjusting cylinder is provided at the hinge; the mounting frame is slidably connected to the fixed plate, and a first pushing cylinder is provided between the mounting frame and the fixed plate, which drives the mounting frame to move axially through extension and retraction; a bolt installation wrench is slidably connected to the mounting frame, and a second pushing cylinder is provided between the bolt installation wrench and the mounting frame, which drives the bolt installation wrench to move radially through extension and retraction; a fork is fixedly connected to the mounting frame, and the fork can be inserted into a radial connecting hole.

[0013] The mounting bracket is slidably connected to a pressure plate, and a third push cylinder is provided between the mounting bracket and the pressure plate. The pressure plate is driven to move radially by the extension and retraction of the third push cylinder.

[0014] A rubber strip is fixedly connected to the lower surface of the pressure plate.

[0015] The robotic arm includes a vehicle body and a crossbeam. The crossbeam is slidably connected to the vehicle body, and a drive mechanism is provided between the crossbeam and the vehicle body to drive the crossbeam to move. A rotary table is fixedly connected to the front end of the crossbeam, and a drive arm is provided on the rotary table. The drive arm includes a large arm and a small arm. The large arm is fixedly connected to the rotary table, and the rear end of the small arm is hinged to the upper end of the large arm. An angle adjustment cylinder is hinged between the large arm and the small arm. The fixed plate is hinged to the front end of the small arm.

[0016] The crossbeam is equipped with a movable material frame.

[0017] Compared with the prior art, the beneficial effects of this invention are: The coolant drain temperature of the reducer is around 30℃. By installing pipelines and valves, the coolant drain of the reducer can be connected to the lubricating oil cooler in winter. The waste heat of the drain can be used to heat the lubricating oil, thus achieving waste heat reuse, reducing the power consumption of electric heating, and improving the water balance of the desulfurization system.

[0018] Each row of liners consists of a first liner, an intermediate liner, and a tail liner inserted sequentially. Several intermediate liners are provided. Only the first bolts on the first and tail liners require external tightening of nuts; the remaining second bolts can be tightened internally. Therefore, most of the fastening in this ball mill can be completed internally without external coordination, thus effectively improving efficiency.

[0019] At the same time, when the connector is inserted into the slot, it can block the head of the second bolt; therefore, it can prevent the head of the second bolt from being damaged, thus avoiding affecting its service life and the need for reinstallation and replacement. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention; Figure 2 This is a cross-sectional view of Embodiment 1 of the present invention from one direction; Figure 3 yes Figure 2 Schematic diagram of the structure in direction A; Figure 4 This is a cross-sectional view from another direction in Embodiment 1 of the present invention; Figure 5 This is a schematic diagram of the structure at the connecting cylinder of the present invention; Figure 6 This is a schematic diagram of the structure of the head liner plate in Embodiment 1 of the present invention; Figure 7 This is a schematic diagram of the structure of the intermediate liner plate in one direction according to Embodiment 1 of the present invention; Figure 8 This is a schematic diagram of the intermediate liner plate in another direction according to Embodiment 1 of the present invention; Figure 9 This is a schematic diagram of the tail liner plate in Embodiment 1 of the present invention; Figure 10 This is a schematic diagram of the structure in one direction of Embodiment 2 of the present invention; Figure 11 yes Figure 10 A magnified view of a section at point A in the middle; Figure 12 This is a schematic diagram of the structure from another direction in Embodiment 2 of the present invention; Figure 13 yes Figure 12 A magnified view of a section at point B in the middle; Figure 14 This is a front view of the clamping and mounting mechanism in Embodiment 2 of the present invention; Figure 15 This is a schematic diagram of the structure of the drive mechanism in Embodiment 2 of the present invention; Wherein: 101 is the cylinder body, 102 is the first liner plate, 103 is the intermediate liner plate, 104 is the tail liner plate, 105 is the slot, 106 is the insertion part, 107 is the first bolt, 108 is the first nut, 109 is the second bolt, 110 is the second nut, 111 is the connecting cylinder, 112 is the radial connecting hole, 113 is the radial column, and 114 is the positioning ball; 201 is the robotic arm, 202 is the clamping and mounting mechanism, 203 is the fixing plate, 204 is the mounting bracket, 205 is the first adjusting cylinder, 206 is the first pushing cylinder, 207 is the bolt installation wrench, 208 is the second pushing cylinder, 209 is the fork head, 210 is the pressure plate, 211 is the third pushing cylinder, 212 is the rubber strip, 213 is the vehicle body, 214 is the crossbeam, 215 is the drive mechanism, 216 is the rotary table, 217 is the upper arm, 218 is the lower arm, 219 is the angle adjusting cylinder, and 220 is the material frame. Detailed Implementation

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] like Figure 1-9 As shown, a desulfurization ball mill includes a cylinder 101 and a liner layer; a gear ring is fixed on the cylinder 101, and the gear ring meshes with a gear on the output shaft of a reducer; the reducer is connected to a motor. The cylinder 101 is rotated by the motor → reducer → gear → gear.

[0023] The desulfurization ball mill operates at low speeds, resulting in low oil temperatures in the lubrication tank during winter. Electric heating is required to raise the oil temperature and improve lubrication. The original ball mill reducer cooling water was designed to return to the process water tank, but it is now being discharged to a recovery water pool and returned to the absorption tower for reuse. This causes an imbalance in the desulfurization water system and affects level control.

[0024] Therefore, when the coolant drain temperature of the reducer is around 30℃, by adding pipelines and valves, the coolant drain of the reducer can be connected to the lubricating oil cooler in winter. This allows the waste heat from the drain to heat the lubricating oil, thus achieving waste heat reuse, reducing the power consumption of electric heating, and improving the water balance of the desulfurization system.

[0025] The lining layer is fixedly installed on the inner wall of the cylinder 101. The lining layer is composed of several rows of lining plates. Each row of lining plates consists of a head lining plate 102, a tail lining plate 104, and several intermediate lining plates 103.

[0026] The first liner plate 102, the intermediate liner plate 103, and the tail liner plate 104 are sequentially inserted together; therefore, a corresponding insertion structure is provided between the first liner plate 102, the intermediate liner plate 103, and the tail liner plate 104, specifically adopting the following structural configuration: The first liner plate 102 and each intermediate liner plate 103 are provided with a slot 105 at their rear ends, and the tail liner plate 104 and each intermediate liner plate 103 are provided with a plug-in part 106 corresponding to the slot 105 at their front ends. That is, the first liner plate 102 is not provided with a plug-in part 106, and the tail liner plate 104 is not provided with a slot 105; the two ends of the intermediate liner plate 103 are respectively provided with a plug-in part 106 and a slot 105.

[0027] Furthermore, when the insertion part 106 is inserted into the slot 105, the insertion part 106 is restricted from radial movement; that is, the front ends of the intermediate liner 103 and the tail liner 104 can be effectively fixed. Specifically, the two sides of the slot 105 are beveled, forming a structure similar to a dovetail groove.

[0028] During installation, first fix the first liner plate 102 inside the cylinder 101, then insert the insertion part 106 of one of the intermediate liners 103 into the slot 105 of the first liner plate 102, and then fix the intermediate liner plate 103; then insert and fix each intermediate liner plate 103 one by one (insert one and fix one), until the last intermediate liner plate 103 is inserted and fixed; finally, insert the insertion part 106 of the tail liner plate 104 into the slot 105 of the last intermediate liner plate 103, and fix the tail liner plate 104.

[0029] The first liner plate 102, intermediate liner plate 103, and tail liner plate 104 are fixed to the cylinder body 101 in the following manner: First bolts 107 for fixing to the cylinder body 101 are provided at the front end of the first liner plate 102 and the rear end of the tail liner plate 104. The first bolts 107 pass through the cylinder body 101 and connect to the first nut 108, and are fixed by tightening the first nut 108. Second bolts 109 for fixing to the cylinder body 101 are provided at the slots 105 of the first liner plate 102 and each intermediate liner plate 103. The second bolts 109 pass through the cylinder body 101 and connect to the second nut 110, and are fixed by tightening the second bolts 109. A connecting sleeve 111 is provided on the cylinder body 101 to insert into the second nut 110. Each connecting sleeve 111 has a groove corresponding to the shape of the second nut 110, which restricts the rotation of the second nut 110 after insertion.

[0030] That is, the first liner plate 102 is fixed by the first bolt 107 and the second bolt 109, the middle liner plate 103 is fixed by the second bolt 109, and the tail liner plate 104 is fixed by the first bolt 107.

[0031] The specific fixing method is as follows: First, place the first liner plate 102 at the desired fixing position, and insert the first bolt 107 and the second bolt 109 respectively. The first bolt 107 passes through the cylinder 101 and connects to the first nut 108, and is fixed by tightening the first nut 108. The second bolt 109 passes through the cylinder 101 and connects to the corresponding second nut 110. Since the second nut 110 is fixed, the second bolt 109 can be tightened from the inside. For the intermediate liner plate 103, insert the insertion part 106 of the first intermediate liner plate 103 into the slot 105 of the first liner plate 102, and then fix it by tightening the second bolt 109 from the inside. Then, insert the intermediate liner plates 103 one by one and fix them by tightening the second bolt 109 from the inside. For the tail liner plate 104, insert the insertion part 106 of the tail liner plate 104 into the slot 105 of the last intermediate liner plate 103, and then fix it by inserting the first bolt 107 and tightening the first nut 108 from the outside.

[0032] The first liner plate 102, the middle liner plate 103, and the tail liner plate 104 can be sequentially inserted and fixed in the above manner. Furthermore, since the insertion part 106 is inserted into the slot 105, the head of the second bolt 109 can be blocked by the insertion part 106, thus preventing the head of the second bolt 109 from being exposed and thus preventing damage that could affect the next disassembly and assembly.

[0033] Furthermore, radial connecting holes 112 are provided at the rear end of the tail liner 104 and at the slot 105, and the insertion part 106 is provided with radial posts 113 that insert into the radial connecting holes 112. Through the above structure, after the front liner 102, the intermediate liner 103, and the tail liner 104 are sequentially inserted, the radial movement of the intermediate liner 103 can be further restricted (preventing the insertion end from tilting up). More importantly, the radial connecting holes 112 can be used to cooperate with the robot arm 201 for disassembly and assembly operations. That is, the radial connecting holes 112 have both of the above functions.

[0034] Furthermore, the upper surfaces of the aforementioned first liner plate 102, intermediate liner plate 103, and tail liner plate 104 are all wavy.

[0035] Furthermore, to prevent the second nut 110 from falling off, a positioning ball 114 is provided on the connecting cylinder 111, and a corresponding positioning groove is provided on the second nut 110. When the second nut 110 is inserted into the connecting cylinder 111, the positioning ball 114 can be engaged in the corresponding positioning groove. Furthermore, the aforementioned radial and axial directions are determined with reference to the cylinder 101.

[0036] This embodiment, based on Embodiment 1, provides a liner-changing robot that is compatible with the aforementioned liner plate, such as... Figure 10-15 As shown, it includes a robotic arm 201 and a desulfurization ball mill. The robotic arm 201 is equipped with a clamping and mounting mechanism 202; the clamping and mounting mechanism 202 is mainly used to cooperate with the aforementioned head liner 102, intermediate liner 103 and tail liner 104.

[0037] The clamping and mounting mechanism 202 includes a fixed plate 203 and a mounting frame 204. The fixed plate 203 is hinged to the robot arm 201, and a first adjusting cylinder 205 is provided at the hinge. The angle between the fixed plate 203 and the robot arm 201 can be adjusted by extending or retracting the first adjusting cylinder 205. The mounting frame 204 is slidably connected to the fixed plate 203, and a first pushing cylinder 206 is provided between the mounting frame 204 and the fixed plate 203. The mounting frame 204 is driven to move axially by extending or retracting the first pushing cylinder 206.

[0038] A bolt installation wrench 207 is slidably connected to the mounting bracket 204. A second push cylinder 208 is provided between the bolt installation wrench 207 and the mounting bracket 204, and the bolt installation wrench 207 is driven to move radially by the extension and retraction of the second push cylinder 208. The bolt installation wrench 207 can be a pneumatic or hydraulic wrench as is currently available. The bolt installation wrench 207 is used to install a second bolt 109. A magnet is provided on the bolt sleeve of the bolt installation wrench 207, which can attract the second bolt 109 magnetically. Alternatively, the second bolt 109 can be fixed by setting a positioning ball 114 on the bolt sleeve.

[0039] A fork 209 is fixedly connected to the mounting bracket 204. The fork 209 can be inserted into the radial connection hole 112, thereby moving the liner. A pressure plate 210 is slidably connected to the mounting bracket 204. A third push cylinder 211 is provided between the mounting bracket 204 and the pressure plate 210. The third push cylinder 211 extends and retracts to drive the pressure plate 210 to move radially, so that the pressure plate 210 presses down on the liner.

[0040] The specific replacement method is as follows: First, remove the first nut 108 on the front liner plate 102 and the tail liner plate 104 from the outside, and then pull out the corresponding first bolt 107 from inside the cylinder 101. After that, the robot arm 201 can be used to reach into the cylinder 101 for disassembly.

[0041] The disassembly process of the tail liner 104 is as follows: The robot arm 201 moves the clamping and mounting mechanism 202 to the tail liner 104, aligning the fork 209 with the radial connecting hole 112 on the tail liner 104; then, the first push cylinder 206 extends to insert the fork 209 into the radial connecting hole 112; the third push cylinder 211 extends to press the pressure plate 210 against the tail liner 104. Finally, the first push cylinder 206 retracts and moves the tail liner 104, separating it from the intermediate liner 103. The robot arm 201 removes the tail liner 104 from the cylinder 101 and moves it to the designated position (such as the material frame 220 below). The third push cylinder 211 retracts so that the pressure plate 210 no longer presses down on the tail liner 104. After the robot arm 201 drives the clamping and mounting mechanism 202 as a whole, the fork head 209 moves out of the radial connection hole 112, thus realizing the separation / placement of the tail liner 104.

[0042] The disassembly methods for the first liner plate 102 and the intermediate liner plate 103 are similar. The robotic arm 201 moves the clamping and mounting mechanism 202 to the intermediate liner plate 103, aligning the fork 209 with the radial connecting hole 112 on the intermediate liner plate 103. The first push cylinder 206 extends to insert the fork 209 into the radial connecting hole 112. The third push cylinder 211 extends to press the pressure plate 210 against the intermediate liner plate 103. Then, the second push cylinder 208 extends to drive the bolt installation wrench 207 to move radially downward, inserting the bolt sleeve into the second bolt 109. The bolt installation wrench 207 is then turned to loosen the second bolt 109 (during the loosening process, the second push cylinder 208 retracts). After loosening, the second bolt 109 can be removed manually or by using the bolt sleeve's magnetic attraction. Finally, the first push cylinder 206 retracts, moving the intermediate liner plate 103 to separate it from the other intermediate liner plates 103. The robotic arm 201 removes the intermediate liner 103 from the cylinder 101 and places it in a designated position (such as in the material frame 220 described below). Then, the third push cylinder 211 retracts, causing the pressure plate 210 to no longer press against the intermediate liner 103. The robotic arm 201 then drives the clamping and mounting mechanism 202, causing the fork head 209 to move out of the radial connecting hole 112, thus achieving separation / placement from the intermediate liner 103. The disassembly method for the first liner 102 is similar and will not be described in detail here. Through the above operations, one row of liners can be completely removed; the removal method for the remaining rows of liners is the same.

[0043] The installation method for each row of lining plates is as follows: First, install the first liner plate 102. The robot arm 201 moves the clamping and mounting mechanism 202 to the new first liner plate 102, aligning the fork tip 209 with the radial connecting hole 112 on the first liner plate 102. The first push cylinder 206 extends to insert the fork tip 209 into the radial connecting hole 112. The third push cylinder 211 extends to press the pressure plate 210 against the first liner plate 102. The robot arm 201 moves the new first liner plate 102 to its installation position. The first bolt 107 is manually inserted into the first liner plate 102, and the first nut 108 is tightened externally for fixation. Then, the third push cylinder 211 retracts to remove the pressure plate 210 from the first liner plate 102, and the first push cylinder 206 retracts to remove the fork tip 209 from the radial connecting hole 112.

[0044] Next, the intermediate liner 103 is installed. The robot arm 201 moves the clamping and mounting mechanism 202 to the new intermediate liner 103, aligning the fork 209 with the radial connecting hole 112 on the intermediate liner 103. The first push cylinder 206 extends to insert the fork 209 into the radial connecting hole 112. The third push cylinder 211 extends to press the pressure plate 210 against the intermediate liner 103. The robot arm 201 moves the new intermediate liner 103 to the rear of the first liner 102, aligning the insertion part 106 of the new intermediate liner 103 with the slot 105 on the first liner 102. Then, the first push cylinder 206 continues to extend, inserting the insertion part 106 of the new intermediate liner 103 into the slot 105 on the first liner 102. Finally, the second bolt 109 is manually inserted into the new intermediate liner 103. The second push cylinder 208 extends, driving the bolt installation wrench 207 to move radially downwards, inserting the bolt sleeve into the second bolt 109. The bolt installation wrench 207 is then rotated to tighten the second bolt 109. After tightening, the second push cylinder 208 retracts, driving the bolt installation wrench 207 to move radially upwards, removing the bolt sleeve from the second bolt 109. The third push cylinder 211 retracts, removing the pressure plate 210 from pressing against the intermediate liner 103. The first push cylinder 206 retracts, removing the fork head 209 from the radial connecting hole 112. The remaining intermediate liners 103 are then installed. The robotic arm 201 moves the clamping and installation mechanism 202 to the next new intermediate liner 103, and so on, installing each intermediate liner 103 in sequence.

[0045] Finally, the tail liner 104 is installed. The robot arm 201 moves the clamping and mounting mechanism 202 to the new tail liner 104, aligning the fork 209 with the radial connecting hole 112 on the tail liner 104. The first push cylinder 206 extends to insert the fork 209 into the radial connecting hole 112. The third push cylinder 211 extends to press the pressure plate 210 against the tail liner 104. The robot arm 201 moves the new tail liner 104 behind the last intermediate liner 103, aligning the insertion part 106 of the new tail liner 104 with the slot 105 on the last intermediate liner 103. Then, the first push cylinder 206 continues to extend, inserting the insertion part 106 of the new tail liner 104 into the slot 105 on the last intermediate liner 103. The first bolt 107 is manually inserted into the tail liner 104, and the first nut 108 is tightened externally for fixation. Then, the third push cylinder 211 retracts so that the pressure plate 210 no longer presses against the tail liner 104, and the first push cylinder 206 retracts to move the fork head 209 out of the radial connection hole 112.

[0046] At this point, the installation of one row of lining plates can be completed, and the installation of the remaining rows of lining plates is carried out in the same way.

[0047] Furthermore, the first adjusting cylinder 205, the first pushing cylinder 206, the second pushing cylinder 208, and the third pushing cylinder 211 mentioned above can all be hydraulic cylinders.

[0048] Furthermore, to prevent damage to the liner, a rubber strip 212 is fixedly connected to the lower surface of the pressure plate 210. Furthermore, the aforementioned robotic arm 201 includes a body 213 and a crossbeam 214. The crossbeam 214 is slidably connected to the body 213, and a drive mechanism 215 is provided between the crossbeam 214 and the body 213. The drive mechanism 215 drives the crossbeam 214 to move. The drive mechanism 215 can be a common sprocket and chain mechanism or a gear and rack mechanism. Taking the gear and rack mechanism as an example, a rack is fixed below the crossbeam 214; a gear that meshes with the rack is rotatably connected to the body 213, and the gear is connected to a drive motor. The drive motor drives the rack to rotate, thereby driving the crossbeam 214 to move and extend into the cylinder 101. Specifically, the body 213 is provided with rotatable wheels.

[0049] A rotary table 216 is fixedly connected to the front end of the crossbeam 214. A drive arm is mounted on the rotary table 216, and the drive arm is driven to rotate via the rotary table 216. The drive arm includes a large arm 217 and a small arm 218. The large arm 217 is fixedly connected to the rotary table 216, and the rear end of the small arm 218 is hinged to the upper end of the large arm 217. An adjustment cylinder 219 is hinged between the large arm 217 and the small arm 218. A fixed plate 203 is hinged to the front end of the small arm 218. This structural arrangement drives the clamping and mounting mechanism 202 to move in multiple directions. Similarly, the adjustment cylinder 219 can be a hydraulic cylinder.

[0050] Furthermore, a movable material frame 220 is provided on the crossbeam 214; the material frame 220 can also be moved using a gear and rack structure; specifically, a rack is provided above the crossbeam 214, and a gear (connected to a motor) meshes with it on the material frame 220. The disassembled liners (first liner 102, middle liner 103, and tail liner 104) can be placed in the material frame 220, and the material frame 220 can be moved to remove them from the cylinder 101. New liners can also be placed in the material frame 220, and the material frame 220 can be moved to feed them into the cylinder 101.

[0051] The above description only illustrates the preferred embodiments of the present invention. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention, and all such changes should be included within the protection scope of the present invention.

Claims

1. A desulfurization ball mill, characterized in that: It includes a cylinder (101) and a liner layer. A gear ring is fixed on the cylinder (101) and meshes with a gear on the output shaft of the reducer. The coolant drain of the reducer is connected to the lubricating oil cooler of the ball mill and the residual heat of the drain is used to heat the lubricating oil. The lining layer is fixedly installed on the inner wall of the cylinder (101). The lining layer is composed of several rows of lining plates. Each row of lining plates is composed of a first lining plate (102), an intermediate lining plate (103), and a tail lining plate (104) inserted in sequence. The intermediate lining plate (103) is provided in several pieces. The rear end of the first lining plate (102) and each intermediate lining plate (103) is provided with a slot (105). The front end of the tail lining plate (104) and each intermediate lining plate (103) is provided with an insertion part (106) corresponding to the slot (105). After the insertion part (106) is inserted into the slot (105), the insertion part (106) is restricted from radial movement. The front end of the first liner plate (102) and the rear end of the tail liner plate (104) are both provided with a first bolt (107) for fixing to the cylinder (101). The first bolt (107) passes through the cylinder (101) and is connected to a first nut (108). The first nut (108) is tightened to fix the cylinder. The slot (105) is provided with a second bolt (109) for fixing to the cylinder (101). The second bolt (109) passes through the cylinder (101) and is connected to a second nut (110). The second bolt (109) is tightened to fix the cylinder. The cylinder (101) is provided with a connecting cylinder (111) that is inserted into the second nut (110). The connecting cylinder (111) is provided with a groove corresponding to the shape of the second nut (110) to restrict the rotation of the second nut (110). After the insertion part (106) is inserted into the slot (105), the head of the second bolt (109) can be blocked by the insertion part (106). The rear end of the tail liner (104) and the slot (105) are provided with radial connecting holes (112). The insertion part (106) is provided with a radial post (113) that is inserted into the radial connecting hole (112). The radial connecting hole (112) is also used for the insertion of the fork (209) of the liner changing robot.

2. The desulfurization ball mill according to claim 1, characterized in that: The upper surfaces of the first liner plate (102), the middle liner plate (103), and the tail liner plate (104) are all wavy.

3. The desulfurization ball mill according to claim 1, characterized in that: The connecting cylinder (111) is provided with a positioning ball (114), and the second nut (110) is provided with a corresponding positioning groove.

4. A desulfurization ball mill according to claim 1, characterized in that: The lining changing robot includes a robot (201) and a clamping and mounting mechanism (202) on the robot (201). The clamping and mounting mechanism (202) includes a fixed plate (203) and a mounting frame (204). The fixed plate (203) is hinged to the robot (201), and a first adjusting cylinder (205) is provided at the hinge. The mounting frame (204) is slidably connected to the fixed plate (203), and a first pushing cylinder (206) is provided between the mounting frame (204) and the fixed plate (203). The mounting bracket (204) is axially moved by the telescopic drive of the first push cylinder (206); a bolt installation wrench (207) is slidably connected on the mounting bracket (204), and a second push cylinder (208) is provided between the bolt installation wrench (207) and the mounting bracket (204). The bolt installation wrench (207) is radially moved by the telescopic drive of the second push cylinder (208); a fork head (209) is fixedly connected on the mounting bracket (204), and the fork head (209) is inserted into the radial connection hole (112).

5. A desulfurization ball mill according to claim 4, characterized in that: The mounting bracket (204) is slidably connected to a pressure plate (210). A third push cylinder (211) is provided between the mounting bracket (204) and the pressure plate (210). The pressure plate (210) is driven to move radially by the extension and retraction of the third push cylinder (211).

6. A desulfurization ball mill according to claim 5, characterized in that: A rubber strip (212) is fixedly connected to the lower surface of the pressure plate (210).

7. A desulfurization ball mill according to claim 4, characterized in that: The robotic arm (201) includes a vehicle body (213) and a crossbeam (214). The crossbeam (214) is slidably connected to the vehicle body (213). A drive mechanism (215) is provided between the crossbeam (214) and the vehicle body (213). The crossbeam (214) is driven to move by the drive mechanism (215). A rotary table (216) is fixedly connected to the front end of the crossbeam (214). A drive arm is provided on the rotary table (216). The drive arm includes a large arm (217) and a small arm (218). The large arm (217) is fixedly connected to the rotary table (216). The rear end of the small arm (218) is hinged to the upper end of the large arm (217). An angle adjustment cylinder (219) is hinged between the large arm (217) and the small arm (218). The fixed plate (203) is hinged to the front end of the small arm (218).

8. A desulfurization ball mill according to claim 7, characterized in that: The crossbeam (214) is provided with a movable material box (220).

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