Grinding device for preparing sintered brick raw materials from iron tailings

Abstract

The utility model discloses a grinding device for preparing sintered brick raw materials from iron tailings in the technical field of sintered brick production, which comprises a grinding box, the top of the grinding box is provided with a feed port, the bottom of the grinding box is provided with a discharge port, and the upper end of an inner cavity of the grinding box is provided with a dust blocking assembly. Crushing rollers are symmetrically installed at the end, close to the dust blocking assembly, of an inner cavity of the grinding box, grinding rollers are symmetrically installed at the end, close to the crushing rollers, of the inner cavity of the grinding box, the grinding rollers are located below the crushing rollers, and a driving assembly is arranged between the crushing rollers and the grinding rollers and located on the outer side of the grinding box; a cleaning assembly is arranged at the end, close to the grinding rollers, of the grinding box inner cavity. The servo motor, the supporting plate, the connecting rod, the nut, the sliding block, the sliding groove, the lead screw and the connecting plate are arranged in a matched mode, so that the scraper is in contact with materials on the surface of the grinding roller, the materials on the surface of the grinding roller are cleaned, the materials do not need to be cleaned after shutdown, time and labor are saved, and the grinding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sintered brick, especially to an iron tailings preparation sintered brick raw material grinding device. BACKGROUND

[0002] Tailings are solid waste produced in the mineral processing process, which has the characteristics of large quantity, fine particle size and high availability. Using fine iron tailings as raw material to prepare sintered bricks has good development prospects. It has the advantages of light weight, small thermal conductivity, good thermal insulation effect, etc., and can be widely used in the fields of building wall materials, decorative materials, and thermal insulation materials for roofs.

[0003] Patent No. CN212595961U discloses a raw material grinding device for coal gangue sintered hollow bricks, which includes a shell, a feed pipe is arranged at the top end of the shell, a crushing box is arranged inside the shell, a plurality of crushing rollers are arranged inside the crushing box, crushing teeth are uniformly arranged outside the crushing rollers, an accumulation hopper is arranged inside the shell, the bottom end of the accumulation hopper is connected with the inlet end of a ball mill, the outlet end of the ball mill is communicated with a grinding box, a plurality of grinding rollers are arranged inside the grinding box, a water tank is arranged on the outer wall of the shell, a water suction pipe is arranged on the water tank, a water spraying disc is arranged at the outlet end of the water suction pipe, a sieve plate is arranged inside the shell, and a discharge pipe is arranged at the lowest end of the sieve plate. The raw material grinding device improves the grinding effect and efficiency of coal gangue through multiple crushing and grinding. However, the powder of the raw material will stick to the grinding rollers during the grinding process, and the existing technology generally relies on manual cleaning of the raw material on the grinding rollers. Manual cleaning is time-consuming and labor-intensive, and reduces the grinding efficiency and the practicality of the device. SUMMARY

[0004] To improve the problem that the powder of the raw material will stick to the grinding rollers during the grinding process in the existing device, and to reduce the time and labor required for manual cleaning of the raw material on the grinding rollers, the utility model provides an iron tailings preparation sintered brick raw material grinding device.

[0005] The utility model provides an iron tailings preparation sintered brick raw material grinding device, adopts the following technical scheme:

[0006] An iron tailings preparation sintered brick raw material grinding device includes a grinding box, a feed inlet is arranged at the top of the grinding box, a discharge outlet is arranged at the bottom of the grinding box, a dust blocking assembly is arranged at the upper end of the inner cavity of the grinding box, a crushing roller is symmetrically installed at one end of the inner cavity of the grinding box close to the dust blocking assembly, a grinding roller is symmetrically installed at one end of the inner cavity of the grinding box close to the crushing roller, the grinding roller is located below the crushing roller, a driving assembly is arranged between the crushing roller and the grinding roller, the driving assembly is located outside the grinding box, and a cleaning assembly is arranged at one end of the inner cavity of the grinding box close to the grinding roller.

[0007] Through the above technical scheme, the raw materials for sintered brick preparation are put into the inside of the grinding box through the feeding port, the two groups of crushing rollers and the two groups of grinding rollers are driven to rotate by the driving assembly, the two groups of crushing rollers rotate to crush the raw materials, the two groups of grinding rollers rotate to grind the raw materials, the materials after crushing and grinding are discharged through the discharge port, and the materials adhered to the surface of the grinding roller can be cleaned through the setting of the cleaning assembly.

[0008] Optionally, the four corners of the bottom of the grinding box are each provided with a supporting column.

[0009] Through the above technical scheme, the entire device can be supported by the supporting column.

[0010] Optionally, the end of the inner cavity of the grinding box close to the crushing roller is provided with a first material guide plate, the two ends of the inner bottom wall of the grinding box are each provided with a second material guide plate, and the lower ends of the two groups of second material guide plates are connected with the discharge port.

[0011] Through the above technical scheme, the crushed raw materials can be guided to enter between the two groups of grinding rollers through the setting of the first material guide plate, and the ground raw materials can be guided to finally discharge from the grinding box through the discharge port through the setting of the second material guide plate.

[0012] Optionally, the dust blocking assembly comprises two groups of guide plates, the two groups of guide plates are respectively installed at the two ends of the inner top wall of the grinding box, the end of the inner cavity of the grinding box close to the baffle is provided with a mounting seat, the sides close to the center of the grinding box of the two groups of mounting seats are each connected with a baffle, and the baffles and the guide plates are each connected with a return spring.

[0013] Through the above technical scheme, the raw materials are put on the top of the guide plate through the feeding port, the raw materials slide along the guide plate to press down the baffle, at this time, the return spring is stretched, when the raw materials are put in, the baffle is pulled back and reset under the rebounding force of the return spring, which can avoid the flying dust in the air and cause environmental pollution in the process of crushing the raw materials.

[0014] Optionally, the driving assembly comprises two groups of second gears, the two groups of second gears are installed at the lower ends of the outer sides of the grinding box respectively, the two groups of second gears are in meshing connection, the interiors of the two groups of second gears are sleeved with driven shafts, the rear ends of the two groups of driven shafts extend into the interiors of the grinding boxes and are fixedly connected with the front ends of the two groups of grinding rollers, the upper ends of the outer sides of the grinding boxes are symmetrically provided with first gears, the two groups of first gears are in meshing connection, the inner cavities of the two groups of first gears are sleeved with driving shafts, the rear ends of the two groups of driving shafts extend into the interiors of the grinding boxes and are fixedly connected with the front ends of the two groups of crushing rollers, one end of the outer side of the grinding box close to the first gear is provided with a frame, the interior of the frame is provided with a driving motor, the power output end of the driving motor is connected with one end of one of the driven shafts away from the frame, and a transmission member is arranged between the driving shaft and the driven shaft.

[0015] By adopting the above technical scheme, when the driving motor starts, one of the driven shafts drives one of the second gears to rotate, since the two groups of second gears are in meshing connection, the two groups of grinding rollers can be driven to rotate to grind the raw materials, and the transmission member drives one of the driving shafts to rotate, the driving shaft drives one of the first gears to rotate, since the two groups of first gears are in meshing connection, the two groups of crushing rollers can be driven to rotate to crush the raw materials.

[0016] Optionally, the transmission member comprises a driving pulley, the driving pulley is sleeved on the outer side of one of the driving shafts, a driven pulley is sleeved on the outer side of one of the driven shafts, and the driving pulley and the driven pulley are provided with a connecting belt in transmission.

[0017] By adopting the above technical scheme, when the driven shaft rotates, the driven pulley rotates, the driven pulley drives the driving pulley to rotate through the connecting belt, and the driving shaft can be driven to rotate.

[0018] Optionally, the cleaning assembly comprises two groups of supporting plates, the two groups of supporting plates are installed between the bottoms of the two groups of first guide plates and the inner walls of the grinding boxes respectively, the two ends of the inner walls of the grinding boxes are provided with connecting plates, the connecting plates and the supporting plates are connected with lead screws through bearings, the tops of the supporting plates are provided with servo motors for driving the lead screws to rotate, the outer walls of the lead screws are screwed with nuts, one side of the nut close to the center of the grinding box is connected with a connecting rod, the end of the connecting rod away from the nut is provided with a scraper, the end of the nut away from the connecting rod is connected with a sliding block, and the inner wall of the grinding box is provided with a sliding groove in sliding connection with the sliding block.

[0019] By adopting the technical scheme, the servo motor drives the screw rod to rotate when working, the screw nut is limited through the sliding cooperation of the sliding block and the sliding groove, the screw nut can be driven to move downward when the screw rod rotates, the screw nut moves downward through the connecting rod to drive the scraper to move downward, the scraper contacts the material on the surface of the grinding roller, and the material on the surface of the grinding roller is cleaned through the scraping of the scraper along with the rotation of the grinding roller.

[0020] Optionally, a guide assembly is arranged between the connecting rod and the support plate, the guide assembly comprises a guide rod, the guide rod is installed at the top of the connecting rod, the top of the guide rod penetrates through the support plate, and a guide hole matched with the guide rod is formed in the surface of the support plate.

[0021] By adopting the technical scheme, the connecting rod can drive the guide rod to slide in the guide hole when moving, so that the connecting rod moves more stably.

[0022] To sum up, the utility model discloses at least one beneficial effect as follows:

[0023] Through the cooperation of the servo motor, the support plate, the connecting rod, the screw nut, the sliding block, the sliding groove, the screw rod and the connecting plate, the scraper contacts the material on the surface of the grinding roller, the material on the surface of the grinding roller is cleaned through the scraping of the scraper along with the rotation of the grinding roller, the cleaning does not need to stop working, time and labor are saved, and the grinding efficiency is improved.

[0024] Through the arrangement of the two groups of crushing rollers, the raw materials can be crushed into small blocks, and the subsequent grinding is facilitated, the crushed raw materials are finely ground through the arrangement of the two groups of grinding rollers, the grinding effect and efficiency of the coal gangue are improved through the cooperation of crushing and grinding, and the preparation of the subsequent sintered bricks is facilitated.

[0025] Through the cooperation of the baffle, the return spring, the guide plate and the mounting seat, when the device is crushing, the two groups of baffles are attached to prevent dust from flying around, the safety of the respiratory tract of workers is ensured, and the surrounding environment is prevented from being polluted as much as possible. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor on the premise of the drawings.

[0027] Figure 1 It is a sectional view of the utility model;

[0028] Figure 2It is the left view structural schematic diagram of the utility model;

[0029] Figure 3 It is the front view structural schematic diagram of the utility model;

[0030] Figure 4 It is the Figure 1 Structure schematic diagram of A place in the middle.

[0031] In the figure: 1, grinding box; 2, crushing roller; 3, first material guide plate; 4, second material guide plate; 5, support column; 6, discharge port; 7, grinding roller; 8, cleaning assembly; 801, servo motor; 802, support plate; 803, scraper; 804, connecting rod; 805, nut; 806, sliding block; 807, sliding groove; 808, screw rod; 809, connecting plate; 9, dust blocking assembly; 901, baffle; 902, return spring; 903, guide plate; 904, mounting seat; 10, feed inlet; 11, driving assembly; 1101, frame body; 1102, first gear; 1103, driving shaft; 1104, transmission member; 11041, driving pulley; 11042, connecting belt; 11043, driven pulley; 1105, second gear; 1106, driven shaft; 1107, driving motor; 12, guide assembly; 1201, guide rod; 1202, guide hole. DETAILED DESCRIPTION

[0032] The following will be combined with the Figures 1-4 The utility model is further explained in detail.

[0033] Please refer to the drawing in the specification Figure 1 And Figure 2 The utility model provides a kind of iron tailings preparation sintered brick raw material grinding device, including grinding box 1, the top of grinding box 1 is equipped with feed inlet 10, it is convenient to throw raw material into the inside of grinding box 1 by feed inlet 10, four corner places of grinding box 1 bottom are all fixedly installed with support column 5.Whole device can be supported by support column 5.

[0034] Please refer to the drawing in the specification Figure 1The bottom of the grinding box 1 is provided with a discharge port 6, which facilitates the discharge of raw materials from the grinding box 1 through the discharge port 6. The upper end of the inner cavity of the grinding box 1 is provided with a dust blocking assembly 9, which includes two groups of guide plates 903, which are respectively installed obliquely at the two ends of the inner top wall of the grinding box 1. One end of the inner cavity of the grinding box 1 close to the baffle 901 is fixedly installed with a mounting seat 904. Two groups of mounting seats 904 are rotatably connected with the baffle 901 on the side close to the center of the grinding box 1. The baffle 901 and the guide plate 903 are connected with a reset spring 902. The raw materials are placed on the top of the guide plate 903 through the feeding port 10, and the raw materials slide along the guide plate 903 to press down the baffle 901. At this time, the reset spring 902 is stretched. When the raw materials are finished, the baffle 901 is pulled back and reset under the rebounding force of the reset spring 902, which can avoid the dust flying in the air and causing environmental pollution during the crushing of raw materials.

[0035] Please refer to the drawings in the specification Figure 1 The inner cavity of the grinding box 1 is symmetrically rotatably installed with a crushing roller 2 close to the dust blocking assembly 9. The inner cavity of the grinding box 1 is symmetrically rotatably installed with a grinding roller 7 close to the crushing roller 2, and the grinding roller 7 is located below the crushing roller 2. The inner cavity of the grinding box 1 is obliquely installed with a first guide plate 3 close to the crushing roller 2. The inner bottom wall of the grinding box 1 is obliquely installed with a second guide plate 4 at both ends. The lower ends of the two groups of second guide plates 4 are connected with the discharge port 6. Through the setting of the first guide plate 3, the crushed raw materials can be guided to enter between the two groups of grinding rollers 7. Through the setting of the second guide plate 4, the ground raw materials can be guided so that the raw materials are finally discharged from the grinding box 1 through the discharge port 6.

[0036] Please refer to the drawings in the specification Figure 1 and Figure 2The driving assembly 11 is arranged between the crushing roller 2 and the grinding roller 7 and located outside the grinding box 1, the driving assembly 11 comprises two sets of second gears 1105 which are respectively arranged at lower ends outside the grinding box 1, the two sets of second gears 1105 are in meshing connection, the inner portions of the two sets of second gears 1105 are fixedly sleeved with driven shafts 1106, the rear ends of the two sets of driven shafts 1106 extend into the interior of the grinding box 1 and are fixedly connected with the front ends of the two sets of grinding rollers 7, the upper ends outside the grinding box 1 are symmetrically provided with first gears 1102, the two sets of first gears 1102 are in meshing connection, the inner cavities of the two sets of first gears 1102 are fixedly sleeved with driving shafts 1103, the rear ends of the two sets of driving shafts 1103 extend into the interior of the grinding box 1 and are fixedly connected with the front ends of the two sets of crushing rollers 2, a frame body 1101 is arranged at one end of the grinding box 1 close to the first gears 1102, a driving motor 1107 is arranged in the interior of the frame body 1101, the power output end of the driving motor 1107 is connected with one end of one of the driven shafts 1106 away from the frame body 1101, and a transmission member 1104 is arranged between the driven shaft 1106 and the driving shaft 1103. When the driving motor 1107 is started, one of the second gears 1105 is driven to rotate by one of the driven shafts 1106, the two sets of grinding rollers 7 can be driven to rotate to grind raw materials due to the meshing connection of the two sets of second gears 1105, one of the driving shafts 1103 is driven to rotate by the transmission member 1104, one of the first gears 1102 is driven to rotate by the driving shaft 1103, and the two sets of crushing rollers 2 can be driven to rotate to crush raw materials due to the meshing connection of the two sets of first gears 1102.

[0037] Please refer to the drawings in the specification Figure 2 and Figure 3 The transmission member 1104 comprises a driving pulley 11041 fixedly sleeved outside one of the driving shafts 1103, a driven pulley 11043 fixedly sleeved outside one of the driven shafts 1106, and a connecting belt 11042 arranged outside the driving pulley 11041 and the driven pulley 11043 in transmission. When the driven shaft 1106 rotates, the driven pulley 11043 is driven to rotate, the driving pulley 11041 is driven to rotate by the connecting belt 11042, and the driving shaft 1103 can be driven to rotate.

[0038] Please refer to the drawings in the specification Figure 1 and Figure 4The cleaning assembly 8 is arranged at one end of the inner cavity of the grinding box 1 close to the grinding roller 7, two sets of support plates 802 are arranged between the bottom of the two sets of first material guide plates 3 and the inner wall of the grinding box 1 respectively, the connecting plates 809 are arranged at both ends of the inner wall of the grinding box 1, the shafts 808 are rotatably connected between the connecting plates 809 and the support plates 802 through bearings, the servo motors 801 for driving the shafts 808 to rotate are arranged at the top of the support plates 802, the nuts 805 are screwed on the outer walls of the shafts 808, the connecting rods 804 are fixedly connected to one side of the nuts 805 close to the center of the grinding box 1, the scrapers 803 are fixedly arranged at the ends of the connecting rods 804 away from the nuts 805, the sliding blocks 806 are connected to the ends of the nuts 805 away from the connecting rods 804, and the sliding grooves 807 are arranged in the inner wall of the grinding box 1 and are matched with the sliding blocks 806. When the servo motor 801 works, the shaft 808 rotates, the nut 805 is limited through the sliding cooperation of the sliding block 806 and the sliding groove 807, and when the shaft 808 rotates, the nut 805 can be driven to move downwards. The nut 805 moves downwards to drive the scraper 803 to move downwards through the connecting rod 804, so that the scraper 803 contacts the material on the surface of the grinding roller 7. With the rotation of the grinding roller 7, the scraper 803 scrapes the material to clean the material on the surface of the grinding roller 7.

[0039] Please refer to the drawings in the specification Figure 4 The guiding assembly 12 is arranged between the connecting rod 804 and the support plate 802, the guiding assembly 12 comprises a guiding rod 1201, the guiding rod 1201 is vertically arranged at the top of the connecting rod 804, the top of the guiding rod 1201 penetrates through the support plate 802, and the surface of the support plate 802 is provided with a guiding hole 1202 matched with the guiding rod 1201. When the connecting rod 804 moves, the guiding rod 1201 can slide in the guiding hole 1202, so that the connecting rod 804 moves more stably.

[0040] Working principle: in use, the raw materials for preparing sintered bricks are placed on the top of the guide plate 903 through the feeding port 10, the raw materials slide along the guide plate 903 to press the baffle 901, at this time, the reset spring 902 is stretched, when the raw materials are placed, the baffle 901 is pulled back and reset under the rebound force of the reset spring 902, so that the device can avoid that dust flies in the air and causes environmental pollution in the process of crushing the raw materials.

[0041] The driving motor 1107 is started, and when the driving motor 1107 works, the driving motor 1107 drives the driven shaft 1106 to rotate, the driven shaft 1106 drives the driven pulley 11043 to rotate, the driven pulley 11043 drives the driving pulley 11041 to rotate through the connecting belt 11042, and then the driving pulley 11041 can drive the driving shaft 1103 to rotate, the driving shaft 1103 drives the first gear 1102 to rotate, and since the two groups of first gears 1102 are meshed and connected, the two groups of first gears 1102 can drive the two groups of crushing rollers 2 to rotate, so as to crush the raw materials.

[0042] The crushed raw materials fall between the two groups of grinding rollers 7 under the guidance of the first guide plate 3, and when the driven shaft 1106 rotates, the second gear 1105 can also be driven to rotate, since the two groups of second gears 1105 are meshed and connected, the two groups of second gears 1105 drive the two groups of grinding rollers 7 to rotate, so as to grind the crushed raw materials, and finally the raw materials are discharged from the discharge port 6 of the grinding box 1 under the guidance of the second guide plate 4.

[0043] When it is necessary to clean the surface of the grinding roller 7, the servo motor 801 is started, and when the servo motor 801 works, the servo motor 801 drives the screw rod 808 to rotate, and under the sliding cooperation of the sliding block 806 and the sliding groove 807, the screw nut 805 is limited, and when the screw rod 808 rotates, the screw nut 805 can be driven to move downward, the screw nut 805 moves downward through the connecting rod 804 to drive the scraper 803 to move downward, so that the scraper 803 contacts the material on the surface of the grinding roller 7, and as the grinding roller 7 rotates, the scraper 803 scrapes the material to clean the material on the surface of the grinding roller 7, so that the device does not need to stop working for cleaning, which not only saves time and effort, but also improves the grinding efficiency of the device.

[0044] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application, so: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A grinding device for the preparation of raw material for sintered brick from iron tailings, comprising a grinding chamber (1), characterized by: The top of the grinding box (1) is provided with an inlet (10), the bottom of the grinding box (1) is provided with an outlet (6), the upper end of the inner cavity of the grinding box (1) is provided with a dust blocking assembly (9), one end of the inner cavity of the grinding box (1) close to the dust blocking assembly (9) is symmetrically provided with a crushing roller (2), one end of the inner cavity of the grinding box (1) close to the crushing roller (2) is symmetrically provided with a grinding roller (7), and the grinding roller (7) is located below the crushing roller (2), a driving assembly (11) is arranged between the crushing roller (2) and the grinding roller (7), and the driving assembly (11) is located outside the grinding box (1), and a cleaning assembly (8) is arranged at one end of the inner cavity of the grinding box (1) close to the grinding roller (7). The cleaning assembly (8) comprises two groups of support plates (802), and the two groups of support plates (802) are respectively arranged between the bottoms of the two groups of first material guide plates (3) and the inner walls of the grinding box (1), the two ends of the inner walls of the grinding box (1) are both provided with connecting plates (809), shaft bearings (808) are connected between the connecting plates (809) and the support plates (802), servo motors (801) for driving the shaft bearings (808) to rotate are arranged on the tops of the support plates (802), screw nuts (805) are screwed on the outer walls of the shaft bearings (808), connecting rods (804) are connected to one side of the screw nuts (805) close to the centers of the grinding boxes (1), scrapers (803) are arranged on the ends of the connecting rods (804) away from the screw nuts (805), sliding blocks (806) are connected to the ends of the screw nuts (805) away from the connecting rods (804), and sliding grooves (807) are formed in the inner walls of the grinding boxes (1) and are in sliding connection with the sliding blocks (806).

2. A device for grinding raw material for sintered brick prepared from iron tailings according to claim 1, characterized in that: Support columns (5) are arranged at the four corners of the bottom of the grinding box (1).

3. A device for grinding raw material for sintered brick prepared from iron tailings according to claim 1, characterized in that: First material guide plates (3) are arranged at one end of the inner cavity of the grinding box (1) close to the crushing roller (2), second material guide plates (4) are arranged at the two ends of the inner bottom walls of the grinding box (1), and the lower ends of the two groups of second material guide plates (4) are connected with the outlet (6).

4. A device for grinding raw material for sintered brick prepared from iron tailings according to claim 1, characterized in that: The dust blocking assembly (9) comprises two groups of guide plates (903), the two groups of guide plates (903) are arranged at the two ends of the inner top walls of the grinding box (1), mounting seats (904) are arranged at one end of the inner cavities of the grinding box (1) close to the baffle plates (901), the two groups of mounting seats (904) are connected with the baffle plates (901) on one side close to the centers of the grinding boxes (1), and the two groups of baffle plates (901) are connected with the guide plates (903) through reset springs (902).

5. A device for grinding raw material for sintered brick prepared from iron tailings according to claim 1, characterized in that: The driving assembly (11) comprises two groups of second gears (1105), the two groups of second gears (1105) are symmetrically installed at the lower ends outside the grinding box (1), the two groups of second gears (1105) are in meshing connection, the inner portions of the two groups of second gears (1105) are sleeved with driven shafts (1106), the rear ends of the two groups of driven shafts (1106) extend into the interior of the grinding box (1) and are fixedly connected with the front ends of the two groups of grinding rollers (7), the upper ends outside the grinding box (1) are symmetrically provided with first gears (1102), the two groups of first gears (1102) are in meshing connection, the inner cavities of the two groups of first gears (1102) are sleeved with driving shafts (1103), the rear ends of the two groups of driving shafts (1103) extend into the interior of the grinding box (1) and are fixedly connected with the front ends of the two groups of crushing rollers (2), a frame body (1101) is installed at one end of the grinding box (1) close to the first gear (1102), a driving motor (1107) is installed in the interior of the frame body (1101), the power output end of the driving motor (1107) is connected with one end of one group of driven shafts (1106) away from the frame body (1101), and transmission pieces (1104) are arranged between one group of driving shafts (1103) and driven shafts (1106).

6. A device for grinding raw material for sintered brick prepared from iron tailings according to claim 5, characterized in that: The transmission piece (1104) comprises a driving pulley (11041) sleeved outside one group of driving shafts (1103), a driven pulley (11043) sleeved outside one group of driven shafts (1106), and a connecting belt (11042) arranged outside the driving pulley (11041) and the driven pulley (11043).

7. A device for grinding raw material for sintered brick prepared from iron tailings according to claim 1, characterized in that: A guide assembly (12) is arranged between the connecting rod (804) and the supporting plate (802), the guide assembly (12) comprises a guide rod (1201), the guide rod (1201) is installed at the top of the connecting rod (804), the top of the guide rod (1201) penetrates through the supporting plate (802), and a guide hole (1202) matched with the guide rod (1201) is formed in the surface of the supporting plate (802).

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