Preparation device for preparing magnesium-calcium refractory materials using dolomite phosphate tailings

Abstract

The present invention proposes a preparation device for magnesium-calcium refractory materials using dolomite phosphate tailings, which relates to the technical field of refractory material preparation and includes a shell and a conveying assembly arranged in the shell. A feed port is provided on the top of the shell, and a guide plate is rotatably provided on the inner wall of the shell. The guide plates are symmetrically arranged along the center of the feed port, and transmission assemblies are provided at both ends of the guide plate. A baffle fixedly connected to the transmission assembly is slidably provided in the shell. During use, when the feed volume is large and piled up on the side of the baffle relative to the feed port, the piled up raw materials will push the baffle to move. When the baffle moves, the bottom ends of the two groups of guide plates are brought close to each other, reducing the feed volume, avoiding the accumulation of raw materials and the appearance of thick raw materials on the conveying assembly. The setting of the baffle ensures that the thickness of the dry raw materials on the conveying assembly is maintained in a relatively stable range.

Description

Technical Field

[0001] The invention relates to the technical field of refractory material preparation, in particular to a preparation device for preparing magnesium-calcium refractory materials by utilizing dolomite phosphate tailings. Background Art

[0002] Dolomite phosphate tailings are solid waste generated during the phosphate beneficiation process. They are primarily composed of dolomite, rich in MgO and CaO, and possess both magnesium and calcium properties. During the development of my country's phosphate resources, tens of millions of tons of phosphate tailings are generated annually. Due to their large accumulation volume and low utilization rate, however, the high MgO / CaO content of dolomite phosphate tailings makes them an ideal raw material for the preparation of magnesium-calcium refractory materials. They can replace traditional processes that rely on natural dolomite or magnesite, significantly reducing raw material costs and realizing solid waste resource utilization. In the process of using dolomite phosphate tailings to prepare magnesium-calcium refractory materials, crushing, grinding, drying / drying, calcining, and other preparation equipment are generally required to prepare the phosphate tailings into refractory materials.

[0003] Chinese Patent Publication No.: CN118009687A discloses a drying equipment for refractory material production, including a mounting frame 1, a conveyor belt is provided in the inner cavity of the mounting frame 1, a mounting frame 2, a mounting frame 3, and a paving assembly are fixedly connected to the top of the mounting frame 1, a drying assembly 1 is provided on the top of the mounting frame 2, a crushing assembly is provided on the side wall of the inner cavity, a drying assembly 2 is provided on the top of the mounting frame 3, a landslide is fixedly connected to one side of the mounting frame 1, and a collection box is provided at the bottom of the landslide, and support legs are fixedly connected to the four corners of the bottom of the mounting frame 1.

[0004] In the prior art, when a belt dryer is used to dry the raw materials of refractory materials, if the instantaneous amount of material fed into the feed port is large, the raw materials will accumulate on the conveyor belt, and the accumulated raw materials will lead to uneven thickness of the raw material layer. In this way, hot air cannot effectively penetrate the thicker raw material areas, thereby causing the problem of incomplete drying of the refractory materials.

[0005] Therefore, a preparation device for preparing magnesium-calcium refractory materials using dolomite phosphate tailings is proposed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to make up for the deficiencies of the prior art and propose a preparation device for preparing magnesia-calcium refractory materials using dolomite phosphate tailings to solve the above-mentioned problems.

[0007] In order to solve the above-mentioned technical problems, the present invention provides the following technical solutions: a preparation device for magnesium-calcium refractory materials using dolomite phosphate tailings, comprising a shell and a conveying assembly arranged in the shell, a feed port being provided at the top of the shell, a guide plate being rotatably provided on the inner wall of the shell, the guide plates being symmetrically arranged along the center of the feed port, transmission assemblies being provided at both ends of the guide plates, a baffle being slidingly provided in the shell and fixedly connected to the transmission assembly, when the baffle moves in a direction away from the guide plate, the transmission assembly drives the guide plate to rotate relatively close, two groups of rollers being provided on the side of the baffle away from the guide plate, the two ends of the rollers being rotatably connected to the side walls of the shell, a plurality of groups of rake teeth being arrayed on the rollers, and the rollers being in transmission cooperation with the conveying assembly.

[0008] A further solution: the conveying assembly includes a conveyor belt and a driving shaft; the driving shaft is arranged at one end of the conveyor belt, a driven shaft is arranged at the end of the conveyor belt away from the driving shaft, and an auxiliary shaft is arranged between the driving shaft and the driven shaft in the conveyor belt.

[0009] A further solution: the transmission assembly includes a first rack; a synchronous gear is engaged at the bottom of the end of the first rack close to the baffle, and a second rack is engaged at the bottom of the synchronous gear, and the synchronous gear is rotatably connected to the outer shell, and the first rack and the second rack are rotatably connected to the corresponding guide plates at the relatively distant ends, and a connecting rod is fixedly provided at the end of the first rack close to the baffle, and the end of the connecting rod away from the first rack is fixedly connected to the baffle.

[0010] A further solution: a gear ring is fixedly provided at the end of one group of rollers, a first gear is slidably connected to the end of the auxiliary shaft, the gear ring is matched with the first gear in transmission, and an installation cavity is provided in the side wall of the outer shell, the first gear and the gear ring are arranged in the installation cavity, and the two groups of rollers are transmission-connected.

[0011] A further solution is that a synchronization plate is fixedly provided on the periphery of the middle part of the rake teeth, the synchronization plate is arranged in the drum, a crank is fixedly provided on one end of the synchronization plate, a guide rail is provided on the side of the installation cavity away from the drum, and the end of the crank away from the drum is in sliding engagement with the guide rail.

[0012] A further solution: a fixed block is provided on the side of the baffle away from the material guide plate, and the two ends of the fixed block are fixedly connected to the inner wall of the shell. A horizontal plate and a sealing plate are respectively provided on the two ends of the side of the baffle close to the fixed block, and the horizontal plate and the inner wall of the fixed block are elastically connected.

[0013] A further solution: a trigger plate is fixedly provided on the side of the baffle close to the fixed block, a square groove for slidingly fitting the trigger plate is provided on the side of the fixed block opposite to the baffle, a movable plate is provided on the side of the first gear opposite to the roller, and the end of the movable plate away from the first gear extends into the square groove and slides with the trigger plate.

[0014] A further solution: a movable groove is provided below the square groove in the fixed block, a pressure plate is slidingly provided in the movable groove, and drive shafts corresponding to the rake teeth are arranged in an array on the pressure plate. The bottom of the drive shaft is fixedly connected to a limiting column, and top columns are elastically provided at both ends of the rake teeth.

[0015] A further solution is that a pressure rod is fixedly provided at the top center of the pressure plate, and the pressure rod slides into the square groove and slides with the trigger plate, and a spring is fixedly provided between the top of the pressure plate and the movable groove.

[0016] A further solution: an extension shaft is provided at one end of the movable groove, and the end of the extension shaft away from the pressure plate rotates and extends into the installation cavity, and is transmission-connected to a second gear, the second gear is transmission-matched with the first gear, the second gear is rotationally connected to the inner wall of the outer shell, a second bevel gear is fixedly provided at one end of the extension shaft close to the pressure plate, and a first bevel gear transmission-matched with the second bevel gear is fixedly provided on a group of drive shafts close to the extension shaft.

[0017] Compared with the existing technology, this municipal raw material processing and drying equipment has the following beneficial effects:

[0018] The present invention cooperates with the transmission component and the baffle. If the feed volume is large and accumulates on the side of the baffle opposite to the feed port, the accumulated raw materials will push the baffle to move. When the baffle moves, the first rack is driven to move by the connecting rod, and then the second rack moves in the direction of the first rack, thereby achieving the close proximity of the bottom ends of the two sets of guide plates to each other, reducing the feed volume, avoiding the accumulation of raw materials and the appearance of thick raw materials on the conveying component, and preventing the rake teeth from effectively turning the raw materials and causing large stress and damage to the rake teeth. The setting of the baffle ensures that the thickness of the dry raw materials on the conveying component is maintained in a relatively stable range. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0020] Figure 2 Schematic diagram of the three-dimensional structure of the guide plate and the baffle of the present invention;

[0021] Figure 3 For the present invention Figure 2 Schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the movable groove and the square groove of the present invention;

[0023] Figure 5 Schematic diagram of the three-dimensional structure of the movable plate of the present invention;

[0024] Figure 6 Schematic diagram of the three-dimensional structure of the extension column of the present invention;

[0025] Figure 7 Schematic diagram of the structure of the guide rail of the present invention;

[0026] Figure 8 Schematic diagram of the three-dimensional structure of the trigger plate of the present invention;

[0027] Figure 9 This is a schematic structural diagram of a cross-section of the middle portion of a rake tooth of the present invention;

[0028] Figure 10 It is a schematic structural diagram of the first bevel gear and the second bevel gear of the present invention.

[0029] In the picture:

[0030] 1. Housing; 2. Conveying assembly; 201. Driving shaft; 202. Auxiliary shaft; 3. Feed port; 4. Guide plate; 401. First rack; 402. Synchronous gear; 403. Second rack; 404. Connecting rod; 5. Baffle; 501. Horizontal plate; 502. Trigger plate; 6. Fixed block; 601. Movable slot; 602. Square slot; 7. Roller; 8. Drive shaft; 801. Limiting column; 802. First bevel gear; 803. Second bevel gear; 9. Rake teeth; 901. Sleeve; 902. Synchronous plate; 903. Crank handle; 904. Guide rail; 10. Moving plate; 11. First gear; 12. Second gear; 13. Gear ring; 14. Top column; 15. Press rod; 151. Press plate; 152. Extension shaft; 16. Hollow tube; 17. Triangle block. DETAILED DESCRIPTION

[0031] See also Figure 1 - Figure 10The present invention provides the following implementation scheme: a preparation device for magnesium-calcium refractory materials using dolomite phosphate tailings, comprising a shell 1 and a conveying assembly 2 arranged in the shell 1, a feed port 3 being provided at the top of the shell 1, a guide plate 4 being rotatably provided on the inner wall of the shell 1, the guide plates 4 being symmetrically arranged along the center of the feed port 3, a transmission assembly being provided at both ends of the guide plate 4, a baffle 5 being slidably provided in the shell 1 and fixedly connected to the transmission assembly, the baffle 5 being provided above the conveying assembly 2 and being located on the side of the guide plate 4 away from the feed port 3, when the baffle 5 moves in a direction away from the guide plate 4, the guide plate 4 is relatively rotated and approached through the transmission assembly, two groups of rollers 7 are provided on the side of the baffle 5 away from the guide plate 4, the two ends of the roller 7 are rotatably connected to the side wall of the shell 1, a plurality of groups of rake teeth 9 are provided in a horizontal array on the roller 7, and the roller 7 is transmission-coordinated with the conveying assembly 2.

[0032] Please refer to Figure 1 - Figure 5 The raw materials of the refractory material enter the conveying component 2 in the shell 1 through the feed port 3, and then undergo a drying process in the shell 1 under the conveyance of the conveying component 2. The guide plate 4 can realize real-time adjustment of the feed amount of the feed port 3, thereby avoiding too much raw material on the conveying component 2, which affects the efficiency of the raw material drying. The dried raw materials are discharged from the shell 1 in the conveying direction of the conveying component 2.

[0033] It should be noted that both ends of the conveying component 2 protrude from the ends of the shell 1. The conveying component 2 includes a conveyor belt and a driving shaft 201. The driving shaft 201 is arranged at one end of the conveyor belt, and a driven shaft is arranged at the end of the conveyor belt away from the driving shaft 201, and an auxiliary shaft 202 is arranged between the driving shaft 201 and the driven shaft in the conveyor belt. The auxiliary shaft 202 can be arranged in multiple groups in an array in the conveyor belt. The driving shaft 201, the driven shaft, and the auxiliary shaft 202 are used to achieve the effect of the conveyor belt conveying raw materials in the shell 1. The feed port 3 is arranged at one end of the top of the shell 1, and the outer wall of the shell 1 at one end close to the feed port 3 is fixedly provided with a protective box for fixing and protecting the protruding end of the conveying component 2. A driving motor for driving a group of driving shafts 201 to rotate is provided on one side of the protective box. A discharge port is provided above the conveying component 2 at the end of the shell 1 away from the protective box, so as to discharge the dried raw materials, and support plates are fixedly provided at both ends of the conveying component 2 on the side wall of the shell 1.

[0034] The distance between the two groups of rollers 7 is greater than the distance that the rake teeth 9 extend out of the rollers 7, so as not to affect the mutual rotation of the two groups of rollers 7. When the auxiliary shaft 202 rotates, it drives the rollers 7 to rotate, thereby breaking up and turning the raw materials on the conveyor belt through the rake teeth 9, thereby improving the drying efficiency.

[0035] Preferably, a thermal unit for transporting hot air into the shell 1 for drying raw materials is provided on one side of the shell 1, and the thermal unit transports hot air into the shell 1 through a pipe and a fan. The thermal unit is specifically a common equipment used in the prior art for thermal drying of raw materials of refractory materials. The detailed related structure and working principle will not be described in detail here.

[0036] Please refer to Figure 2 、 Figure 3 and Figure 5 The transmission assembly includes a first rack 401; a synchronous gear 402 is meshed with the bottom of the end of the first rack 401 close to the baffle 5, and a second rack 403 is meshed with the bottom of the synchronous gear 402. The first rack 401, the synchronous gear 402, and the second rack 403 are all arranged in the side wall of the shell 1, and the synchronous gear 402 is rotatably connected to the shell 1. The first rack 401 and the second rack 403 are arranged oppositely, and the relatively far ends of the first rack 401 and the second rack 403 are rotatably connected to the corresponding guide plate 4. A connecting rod 404 is fixedly provided at one end of the first rack 401 close to the baffle 5, and the end of the connecting rod 404 away from the first rack 401 slides through the side wall of the shell 1 and is fixedly connected to one side of the baffle 5; the top height of the baffle 5 is higher than the bottom height of the guide plate 4, so that the setting of the baffle 5 achieves When feeding through the feed port 3, if the feed volume is large and accumulates on the side of the baffle 5 opposite to the feed port 3, the accumulated raw materials will generate a force on the baffle 5 in the direction away from the guide plate 4, thereby pushing the baffle 5 to move. When the baffle 5 moves, the baffle 5 drives the first rack 401 to move through the connecting rod 404, and then the second rack 403 moves in the direction of the first rack 401 through the synchronous gear 402, thereby achieving the effect of the bottom ends of the two groups of guide plates 4 rotating close to each other, thereby reducing the feed volume, avoiding the accumulation of raw materials and the problem that the raw materials on the conveying component 2 are too thick to be effectively dried, and the problem that the rake teeth 9 cannot effectively turn the raw materials and the thick raw materials cause greater stress and damage to the rake teeth 9. Through the setting of the baffle 5, the thickness of the raw materials to be dried on the conveying component 2 is maintained in a relatively stable range.

[0037] In order to prevent the transmission component from being affected by the raw materials, a telescopic plate can be slidably set on the inner wall of the shell 1 to protect the transmission component. The telescopic plate can be set between the two sets of guide plates 4 and at the position corresponding to the transmission component, so that the telescopic plate can be retracted or extended as the guide plates 4 rotate closer or farther away. The specific shape and size are not limited, and it is sufficient to dynamically block the part of the transmission component between the two sets of guide plates 4.

[0038] Please refer to Figure 2 、 Figure 4 - Figure 7, a group of rollers 7 are fixedly provided with a gear ring 13 at the end, that is, a group of rollers 7 are provided with a gear ring 13 at both ends, and the end of the auxiliary shaft 202 is slidably connected with the first gear 11 that is matched with the gear ring 13 for transmission, and a mounting cavity is provided in the side walls of both sides of the shell 1, and the first gear 11 and the gear ring 13 are provided in the mounting cavity, and the two groups of rollers 7 are connected by belt transmission; when in use, the end of the auxiliary shaft 202 passes through the mounting cavity, and the gear ring 13 is provided on the side of the mounting cavity close to the roller 7. In the initial state, when the raw materials are dried, the driving motor is started to drive the driving shaft 201 to rotate, and the driving shaft 201 rotates so that the conveyor belt is between the driven shaft and the auxiliary shaft 202 , and the driven shaft and the auxiliary shaft 202 will also rotate under the action of the conveyor belt. Then the external raw materials enter the conveying assembly 2 through the feed port 3, and the drive motor is started to drive the active shaft 201 to rotate, and then the driven shaft, the auxiliary shaft 202, and the conveyor belt all rotate. When the auxiliary shaft 202 rotates, the first gear 11 and the gear ring 13 are engaged, so the auxiliary shaft 202 will rotate the drum 7 through the cooperation of the first gear 11 and the gear ring 13, and the rotation of the rake teeth 9 can break up and turn over the raw materials on the conveying assembly 2, avoiding the problem that the raw materials agglomerate and affect the drying efficiency and the raw materials at the bottom cannot be dried.

[0039] Furthermore, a synchronous plate 902 is fixedly provided on the periphery of the middle of the rake teeth 9, and the synchronous plate 902 is arranged in the drum 7. A crank 903 is fixedly provided on the end of the synchronous plate 902. A guide rail 904 is provided on the side of the mounting cavity away from the drum 7. The end of the crank 903 away from the drum 7 is slidably engaged with the guide rail 904. Please refer to Figure 6 When the cam 9 is in the vertical position, the top of the cam 9 is extended out of the roller 7 and the gap between the cam 9 and the conveying assembly 2 is formed, so that the cam 9 is not too long and the conveying assembly 2 is not damaged.

[0040] The guide rail 904 is specifically composed of a first section of a quarter-circular structure and a second section of a groove that is approximately U-shaped. The first section is arranged on the side of the roller 7 facing the driving shaft 201, and the first section and the second section are connected end to end. When the end of the crank 903 is in the first section of the groove, one end of the rake tooth 9 corresponding to the crank 903 extends out of the roller 7 at the maximum, and similarly, the other end is retracted in the side wall of the roller 7. When the crank 903 is in the second section of the groove, when the crank 903 slides therein, one end of the corresponding rake tooth 9 will first move into the roller 7 and retract. After rotating over the dynamic apex of the roller 7, it will then move out of the roller 7. Similarly, the other end of the rake tooth 9 performs the opposite action.

[0041] Please refer to Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 、 Figure 8 , a fixed block 6 is provided on the side of the baffle 5 away from the guide plate 4, and both ends of the fixed block 6 are fixedly connected to the inner wall of the shell 1, and a cross plate 501 and a blocking plate are respectively provided on both ends of the side of the baffle 5 close to the fixed block 6, and the cross plate 501 and the inner wall of the fixed block 6 are elastically connected by an elastic column. In actual use, the cross plate 501 is set above the blocking plate, and the side of the fixed block 6 close to the baffle 5 is flush with the top of the roller 7, and the bottom of the fixed block 6 is slidably matched with the top of the roller 7. The blocking plate is a retractable structure. In this way, when the baffle 5 moves toward the fixed block 6 under the action of the raw material, it can be moved and reset under the action of the corresponding cross plate 501 and the elastic column, and the blocking plate can prevent the accumulated raw materials from passing through the gap between the baffle 5 and the roller 7.

[0042] Furthermore, a trigger plate 502 is fixedly provided on the side of the baffle 5 close to the fixed block 6, and the trigger plate 502 is arranged between the horizontal plate 501 and the blocking plate. A square groove 602 for slidingly fitting the trigger plate 502 is provided on the side of the fixed block 6 relative to the baffle 5, and a movable plate 10 is provided on the side of the first gear 11 relative to the roller 7. The end of the movable plate 10 away from the first gear 11 slides through the side wall of the outer shell 1 and extends into the square groove 602 to slide with the trigger plate 502, and the end of the movable plate 10 close to the square groove 602 is provided with an inclined surface facing the trigger plate 502.

[0043] In actual use, a circular groove is provided on the side of the first gear 11 close to the movable plate 10, and the first gear 11 is slidably connected to the movable plate 10 through the circular groove. The movable plate 10 can only slide in the horizontal direction under the action of the side wall of the shell 1, and the auxiliary shaft 202 and the first gear 11 are slidably connected through the cooperation of the slide groove and the slider, and a spring is provided in the slide groove, so that after the first gear 11 slides in the direction away from the roller 7, it can be automatically reset under the action of the spring. In the initial state, the first gear 11 is in a state of meshing with the gear ring 13 under the cooperation of the corresponding spring and the slide groove and the slider. The end of the movable plate 10 is close to the end of the trigger plate 502. When the feed is large and accumulated, the baffle 5 moves toward the fixed block 6. The movement of the baffle 5 causes the trigger plate 502 to move toward the movable plate 10 and the movable plate 10 is moved toward the first gear 11 through the action of the inclined surface, thereby pushing the first gear 11 to move away from the roller 7 and separate from the gear ring 13. That is, the rotation of the auxiliary shaft 202 no longer drives the rotation of the roller 7, thereby avoiding the accumulation of raw materials causing the rake teeth 9 to increase stress. If it rotates with the auxiliary shaft 202, the risk of damage increases.

[0044] Furthermore, a movable groove 601 is provided in the side wall of the fixed block 6 below the square groove 602, and a pressure plate 151 is slidingly provided in the movable groove 601. A drive shaft 8 corresponding to the rake teeth 9 is arranged in an array on the pressure plate 151, and the bottom of the drive shaft 8 is fixedly connected to the limiting column 801, and a top column 14 is elastically provided at both ends of the rake teeth 9 through springs. In actual use, multiple groups of drive shafts 8 are connected by chain or belt transmission. The drive shaft 8 includes a transmission part and a telescopic part. The transmission part is rotatably connected to the pressure plate 151, and the telescopic part is slidably connected to the side wall of the fixed block 6 away from the transmission part, and the telescopic part can be elastically extended and retracted. The limiting column 801 is fixedly provided at the bottom of the telescopic part, and the telescopic part and the transmission part are connected by a universal shaft. The sizes of the limiting column 801 and the top column 14 match.

[0045] Preferably, a pressure rod 15 is fixedly provided at the top center of the pressure plate 151, and the pressure rod 15 slides into the square groove 602 and slides with the trigger plate 502. A spring is fixedly provided between the top of the pressure plate 151 and the movable groove 601, and the spring is sleeved on the outer periphery of the pressure rod 15. When the gear 11 is in the gear 13 and the first gear 11 is in the gear 13, the first gear 11 is in the gear 13 and the second gear 11 is in the gear 13. When the gear 11 is in the gear 13 and the first gear 11 is in the gear 13, the gear 11 is in the gear 13 and the first gear 11 is in the gear 13. When the gear 11 is in the gear 13 and the first gear 11 is in the gear 13, the gear 11 is in the gear 13 and the first gear 11 is in the gear 13. When the gear 11 is in the gear 13, the gear 11 is in the gear 13 and the first gear 11 is in the gear 13. When the gear 11 is in the gear 13, the gear 11 is in the gear 13 and the first gear 11 is in the gear 13. When the gear 11 is in the gear 13, the gear 11 is in the gear 13. When the gear 11 is in the gear 13, the gear 11 is in the gear 13. When the gear 11 is in the gear 13, the gear 11 is in the gear 13. When the roller 7 is not rotated actively and the rake teeth 9 extend out of the periphery of the roller 7, the conveying assembly 2 rotates so that the accumulated raw materials are continuously conveyed. Then, the extended rake teeth 9 will rub against the raw materials and the roller 7 is rotated through the rake teeth 9. When the ends of the rake teeth 9 retracted in the roller 7 rotate to correspond to the limiting posts 801, the limiting posts 801 elastically extend into the rake teeth 9 and correspond to the top posts 14, and push the top posts 14 to move into the rake teeth 9, so that the groove where the top posts 14 are located is matched with the limiting posts 801, so that the limiting posts 801 complete the engagement with the rake teeth 9, and realize the limitation of the roller 7. The raw materials are turned over by the fixed rake teeth 9, avoiding the problem that the rake teeth 9 rotating around the roller 7 after the raw materials are piled up are easily damaged.

[0046] It should be noted that the telescopic parts on the drive shaft 8 near the baffle 5 are tilted, and when the limit column 801 is aligned with the top column 14, the two groups of rollers 7 and the rake teeth 9 thereon are tilted. Figure 2 The state shown in the figure improves the working efficiency and quality of drying raw materials; and when the limiting column 801 and the top column 14 are separated, the top column 14 elastically moves to reset, thereby blocking the groove adapted to the limiting column 801 (the groove where the top column 14 is located), preventing the raw materials from entering and affecting the clamping fit of the limiting column 801.

[0047] A notch is provided in the middle of the trigger plate 502, and a slope facing the pressure rod 15 is provided at the bottom of the notch, so that when the trigger plate 502 moves toward the fixed block 6, it can first cooperate with the movable plate 10 and then cooperate with the pressure rod 15. When the trigger plate 502 moves and resets, it first releases the cooperation with the pressure rod 15 and then releases the cooperation with the movable plate 10, thereby avoiding the problem of conflict and damage caused by the cooperation of the first gear 11 and the gear ring 13 when the drive shaft 8 and the rake teeth 9 cooperate.

[0048] Please refer to Figure 4 、 Figure 5 ,and Figure 8 - Figure 10 An extension shaft 152 is provided at one end of the movable groove 601, and the end of the extension shaft 152 away from the pressure plate 151 rotates and extends into the corresponding installation cavity, and is connected to the second gear 12 that cooperates with the corresponding first gear 11 through a belt drive. The second gear 12 is rotatably connected to the inner wall of the shell 1, and a second bevel gear 803 is fixedly provided at one end of the extension shaft 152 close to the pressure plate 151, and a group of first bevel gears 802 that cooperate with the second bevel gear 803 are fixedly provided on the drive shaft 8 close to the extension shaft 152.

[0049] In actual use, only one group of extension shafts 152 is provided, the second gear 12 is provided on the side of the gear ring 13 away from the roller 7, and there is space between the side of the second gear 12 away from the roller 7 and the installation cavity, the second bevel gear 803 is provided below the first bevel gear 802, and in the initial state, the pressure plate 151 is in the middle initial position of the movable groove 601 under the action of the spring, at this time the driving shaft 8 is away from the roller 7, the pressure rod 15 extends into the movable groove 601, the second bevel gear 803 and the first bevel gear 802 are separated, the second gear 12 is separated from the first gear 11, and the first gear 11 and the gear ring 13 are meshed; when the baffle 5 moves toward the fixed block 6, the trigger plate 502 first acts on the moving plate 10 to separate the first gear 11 from the gear ring 13, and when the second bevel gear 803 is in the middle initial position of ... After the first gear 11 is separated from the gear ring 13, it continues to move and engages with the second gear 12. Then, when the first gear 11 rotates, it drives the second gear 12 to rotate, thereby rotating the extension shaft 152. When the trigger plate 502 moves and cooperates with the pressure rod 15 to move the pressure rod 15 downward, the drive shaft 8 is moved downward through the pressure plate 151. Then, the first bevel gear 802 and the second bevel gear 803 engage with each other, thereby rotating multiple groups of drive shafts 8. When the pressure plate 151 moves downward, the limiting column 801 extends into the corresponding end of the rake tooth 9 and fits into the corresponding position with the top column 14. When the roller 7 is positioned, the rake tooth 9 is rotated at the same time, thereby accelerating the transportation and crushing of the accumulated raw materials, and avoiding the problem of agglomeration of the accumulated raw materials again.

[0050] Furthermore, a triangular block 17 is fixedly provided at one end of the top column 14 near the synchronous plate 902, and a hollow tube 16 is symmetrically provided along the center of the rake teeth 9. The end of the hollow tube 16 is slidably connected to the side wall of the triangular block 17, and a sleeve 901 is provided on the hollow tube 16 to slide out of the rake teeth 9. There are multiple groups of sleeves 901 arranged in an array on the hollow tube 16, and the sleeves 901 and the hollow tubes 16 are connected. In actual use, the thermal unit will also transport hot air into the drum 7 through the pipeline. When the drum 7 rotates with the auxiliary shaft 202, the sleeve 901 shrinks in the rake teeth 9, and the hot air transported to the drum 7 will pass through the sleeve 901 in the drum 7 and the hollow tube 16 and be ejected from the sleeve 901 extending out of the drum 7. In this way, when the rake teeth 9 break up and turn over the raw materials, hot air is simultaneously transported to the turned raw materials, accelerating the drying process of the raw materials; and when the raw materials are accumulated, the baffle 5 moves to separate the first gear 11 and the gear ring 13, and acts on the limiting column 801 to move into the end of the rake teeth 9 and push the top column 14 to move. The movement of the top column 14 causes the triangular block 17 to move toward the center of the rake teeth 9, thereby causing the two groups of hollow tubes 16 to move away from each other, and then the sleeve 901 extends out of the periphery of the rake teeth 9. In this way, when the drive shaft 8 rotates through the limiting column 801 to drive the rake teeth 9 to rotate, the accumulated raw materials can be quickly dispersed by extending the sleeve 901 of the rake teeth 9, thereby improving the drying efficiency of the raw materials.

[0051] The two ends of the hollow tube 16 are fixedly connected with a hose, and the end of the hose away from the hollow tube 16 passes through the side wall of the rake tooth 9 and extends to the position of the end of the rake tooth 9 near the top column 14. In this way, when in use, part of the hot air will be ejected toward the top column 14 through the hose, thereby avoiding the raw materials attached to the top column 14 affecting the effect of the limit column 801 moving toward it and fitting it. At the same time, the periphery of a group of limit columns 801 away from the baffle 5 is elastically connected with a positioning disk, and the inner wall of the end of the rake tooth 9 at the bottom of the positioning disk is adapted. When the limit column 801 moves toward the top column 14, it first adapts to the inner wall of the end of the rake tooth 9 through the positioning disk, thereby improving the accuracy of the corresponding fit between the limit column 801 and the top column 14.

Claims

1. A device for preparing magnesium-calcium refractory materials using dolomite phosphate tailings, comprising a housing (1) and a conveying assembly (2) disposed within the housing (1), wherein a feed port (3) is disposed at the top of the housing (1), and characterized in that: A guide plate (4) is rotatably provided on the inner wall of the shell (1), and the guide plate (4) is symmetrically provided along the center of the feed port (3). Transmission components are provided at both ends of the guide plate (4). A baffle (5) fixedly connected to the transmission component is slidably provided in the shell (1). When the baffle (5) moves in a direction away from the guide plate (4), the transmission component drives the guide plate (4) to rotate relatively close. Two groups of rollers (7) are provided on the side of the baffle (5) away from the guide plate (4). Both ends of the rollers (7) are rotatably connected to the side walls of the shell (1). A plurality of groups of rake teeth (9) are arranged in an array on the rollers (7). The rollers (7) are transmission-coordinated with the conveying component (2); The conveying assembly (2) comprises a conveyor belt and a driving shaft (201); the driving shaft (201) is arranged at one end of the conveyor belt, a driven shaft is arranged at one end of the conveyor belt away from the driving shaft (201), and an auxiliary shaft (202) is arranged between the driving shaft (201) and the driven shaft in the conveyor belt; A gear ring (13) is fixedly provided at the end of a group of rollers (7), and a first gear (11) is slidably connected to the end of the auxiliary shaft (202), and the gear ring (13) is in transmission cooperation with the first gear (11); A fixed block (6) is provided on the side of the baffle (5) away from the guide plate (4), and both ends of the fixed block (6) are fixedly connected to the inner wall of the housing (1). A transverse plate (501) and a blocking plate are provided on both ends of the side of the baffle (5) close to the fixed block (6), respectively, and the transverse plate (501) and the inner wall of the fixed block (6) are elastically connected. A trigger plate (502) is fixedly provided on one side of the baffle (5) close to the fixed block (6); a square groove (602) in which the trigger plate (502) slidably fits is provided on the side of the fixed block (6) opposite to the baffle (5); a movable plate (10) is provided on the side of the first gear (11) opposite to the roller (7); the end of the movable plate (10) away from the first gear (11) extends into the square groove (602) and slidably fits with the trigger plate (502).

2. The device for preparing magnesium-calcium refractory materials using dolomite phosphate tailings according to claim 1, characterized in that: The transmission assembly includes a first rack (401); a synchronous gear (402) is meshed at the bottom of one end of the first rack (401) close to the baffle (5); a second rack (403) is meshed at the bottom of the synchronous gear (402); and the synchronous gear (402) is rotatably connected to the housing (1); the first rack (401) and the second rack (403) are rotatably connected to the corresponding guide plates (4) at their relatively distant ends; a connecting rod (404) is fixedly provided at one end of the first rack (401) close to the baffle (5); and the connecting rod (404) is fixedly connected to the baffle (5) at one end away from the first rack (401).

3. The device for preparing magnesium-calcium refractory materials by utilizing dolomite phosphate tailings according to claim 1, characterized in that: A mounting cavity is provided in the side wall of the housing (1), the first gear (11) and the gear ring (13) are provided in the mounting cavity, and the two groups of rollers (7) are transmission-connected.

4. The device for preparing magnesium-calcium refractory materials using dolomite phosphate tailings according to claim 3, characterized in that: A synchronization plate (902) is fixedly provided on the periphery of the middle portion of the rake teeth (9), the synchronization plate (902) is arranged in the drum (7), a crank handle (903) is fixedly provided on one end of the synchronization plate (902), a guide rail (904) is provided on the side of the mounting cavity away from the drum (7), and the end of the crank handle (903) away from the drum (7) is in sliding engagement with the guide rail (904).

5. The device for preparing magnesium-calcium refractory materials by utilizing dolomite phosphate tailings according to claim 4, characterized in that: A movable groove (601) is provided below the square groove (602) in the fixed block (6), a pressure plate (151) is slidably provided in the movable groove (601), and drive shafts (8) corresponding to the rake teeth (9) are arranged in an array on the pressure plate (151), the bottom of the drive shaft (8) is fixedly connected to a limiting column (801), and top columns (14) are elastically provided at both ends of the rake teeth (9).

6. The device for preparing magnesium-calcium refractory materials using dolomite phosphate tailings according to claim 5, characterized in that: A pressure rod (15) is fixedly provided at the center of the top of the pressure plate (151). The pressure rod (15) slides into the square groove (602) and slides with the trigger plate (502). A spring is fixedly provided between the top of the pressure plate (151) and the movable groove (601).

7. The device for preparing magnesium-calcium refractory materials using dolomite phosphate tailings according to claim 6, characterized in that: An extension shaft (152) is provided at one end of the movable groove (601), and the end of the extension shaft (152) away from the pressure plate (151) rotates and extends into the installation cavity, and is transmission-connected to a second gear (12), the second gear (12) is transmission-matched with the first gear (11), and the second gear (12) is rotationally connected to the inner wall of the housing (1), and a second bevel gear (803) is fixedly provided at one end of the extension shaft (152) close to the pressure plate (151), and a first bevel gear (802) transmission-matched with the second bevel gear (803) is fixedly provided on a group of drive shafts (8) close to the extension shaft (152).

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