Production device and method for synthetic dead-burnt magnesia

Abstract

The invention discloses a synthetic dead-burnt magnesia production device and method, and relates to the field of magnesia production.The synthetic dead-burnt magnesia production device comprises a shell, a power chamber fixedly communicates with the left side of the outer surface of the shell, a top cover is fixedly connected between the shell and the top of the power chamber, and a plurality of connecting rods are fixedly connected to the bottom in the shell; a discharging hopper is fixedly connected between the outer surfaces of the multiple connecting rods. When the grinding device is used, air supply operation is conducted through an air pump, an air supply pipe and an annular air inlet shell, and through cooperation of a first communication groove, a second communication groove, a third communication groove, a first straight groove, a second straight groove and a third straight groove which are specially designed, the effect of reducing the temperature of the first grinding disc, the second grinding disc and the third grinding disc can be achieved; and after the wake flow gas passes through the grinding channel, a part of heat of the grinding surface can be taken away, so that the thermal fatigue of the metal material is reduced, the service life of the equipment is further prolonged, and meanwhile, under the action of the gas flow, the effects of improving the grinding efficiency and preventing blockage are achieved.

Description

Technical Field

[0001] The present invention relates to the field of magnesia production, and in particular to a device and method for producing synthetic dead-burned magnesia. Background Art

[0002] Magnesia, also known as sintered magnesia, is made from magnesite, magnesite or magnesium hydroxide produced by the reaction of seawater and lime milk. It is calcined at high temperature and has strong hydration ability. It is mainly used to make alkaline refractory materials, such as magnesia bricks and magnesia-alumina bricks. Magnesia containing more impurities is used to pave the bottom of steelmaking furnaces. The production of magnesia mainly includes raw material processing, mixing and stirring, and sintering.

[0003] In the existing technology, the ore raw materials need to be crushed into slag before the magnesia bricks are synthesized and sintered. In order to further improve the fineness of the slag and thus the subsequent sintering efficiency, the slag needs to be further ground. However, during the grinding process, due to the hard texture of the slag, a large amount of heat will be generated during the friction with the grinding surface of the grinding equipment. In order to avoid thermal fatigue of the grinding mechanism, it is necessary to frequently shut down and cool it down, which affects the overall production efficiency of the magnesia bricks.

[0004] Therefore, a synthetic dead-burned magnesia production device and method are proposed to solve the problems raised in the above background technology. Summary of the Invention

[0005] The object of the present invention is to provide a device and method for producing synthetic dead-burned magnesia to solve the problems raised by the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: A synthetic dead-burned magnesia production device, comprising a shell, a power chamber is fixedly connected to the left side of the outer surface of the shell, a top cover is fixedly connected between the top of the shell and the power chamber, a plurality of connecting rods are fixedly connected to the inner bottom of the shell, a discharge hopper is fixedly connected between the outer surfaces of the plurality of connecting rods, a plurality of connecting ribs are fixedly connected to the top of the discharge hopper at equal intervals, a connecting shell is fixedly connected between the tops of the plurality of connecting ribs, a driving assembly is provided near the left side of the top of the top cover, a rotor grinding disc assembly is provided inside the connecting shell, the driving assembly comprises a motor, a pinion, a middle gear and a large gear are fixedly connected to the output end of the motor, the right side of the pinion is meshed with the large gear sleeve, the right side of the middle gear is meshed with the middle gear sleeve, and the right side of the large gear is meshed with the small gear sleeve, the rotor grinding disc assembly comprises a first connecting block, a second connecting block and a third connecting block, the bottoms of the first connecting block, the second connecting block and the third connecting block are respectively fixedly mounted with a first grinding disc, a second grinding disc and a third grinding disc by bolts.

[0007] Preferably, the motor is fixedly mounted on the top of the top cover and the output end rotates through the top of the top cover and extends to the inside of the power chamber, the large gear is located below the middle gear, the small gear is located above the middle gear, the number of teeth on the middle gear is greater than the number of teeth on the small gear and less than the number of teeth on the large gear, and the number of teeth on the middle gear sleeve is less than the number of teeth on the large gear sleeve and greater than the number of teeth on the small gear sleeve.

[0008] Preferably, the inner surface wall of the large tooth sleeve is fixedly connected to a first bracket extending downward, the bottom of the first bracket is fixedly connected to the top of the third connecting block, the inner surface wall of the medium tooth sleeve is fixedly connected to a second bracket extending downward, the bottom of the second bracket is fixedly connected to the top of the second connecting block, the small tooth sleeve is fixedly connected to the top of the first connecting block, and the first connecting block is rotatably connected to the inner surface wall of the connecting shell.

[0009] Preferably, a stator grinding disc is fixedly connected between the tops of the plurality of connecting rods, the tops of the stator grinding discs are arranged in a conical shape, the stator grinding discs are located inside the lower hopper, and the outer surface of the stator grinding discs does not fit the inner wall of the lower hopper.

[0010] Preferably, the bottoms of the first grinding disc, the second grinding disc and the third grinding disc are all inclined, the distance between the first grinding disc and the stator grinding disc is smaller than the distance between the second grinding disc and the stator grinding disc, and the distance between the second grinding disc and the stator grinding disc is smaller than the distance between the third grinding disc and the stator grinding disc.

[0011] Preferably, the top of the top cover is fixedly connected to a lower hopper, and circular channels are provided at the center of the first bracket, the third connecting block, and the third grinding disc. The bottom of the lower hopper and the circular channel are connected, and the outer surface of the discharge hopper extends to the right to the outside of the shell near the bottom, and an opening is provided on the right side of the bottom of the discharge hopper.

[0012] Preferably, an air pump is installed at the bottom of the power chamber, an annular air inlet shell is fixedly connected between the connecting shell and the outer surface of the lower hopper, the annular air inlet shell and the connecting rib are positioned correspondingly, and an air supply pipe is fixedly connected between the outer surface of the annular air inlet shell and the output end of the air pump.

[0013] Preferably, a second connecting groove is provided at adjacent positions on the top of the first grinding disc and the second grinding disc, a plurality of first straight grooves are provided at equal intervals near the top of the first grinding disc, the second connecting groove is coaxially arranged with the axis of the first grinding disc, and both ends of the first straight groove pass through the inner and outer edges of the first grinding disc respectively and are distributed at equal angles along the radial direction.

[0014] Preferably, a third connecting groove is provided at adjacent positions on the top of the second grinding disc and the third grinding disc, a plurality of second straight grooves are provided at equal intervals on the top of the second grinding disc, the third connecting groove is coaxially arranged with the axis of the second grinding disc, and both ends of the second straight grooves pass through the inner and outer edges of the second grinding disc respectively and are distributed at equal angles along the radial direction.

[0015] Preferably, a plurality of third straight grooves are equidistantly provided on the top of the third grinding disc, a first connecting groove is provided at the outer edge of the top of the first grinding disc, the first connecting groove and the annular air inlet shell correspond to each other and are coaxially arranged with the axis of the first grinding disc, the two ends of the third straight groove respectively pass through the inner and outer edges of the first grinding disc and are distributed at equal angles along the radial direction, the inner surface wall of the third connecting block is fixedly connected to a downwardly inclined air guide cover, the air guide cover is located above the inner end of the third straight groove, the top of the lower hopper is hingedly connected to a flip cover, and a material control assembly is provided at the outlet below the discharge hopper, the material control assembly includes a rotating shaft and a motor, the rotating shaft is rotatably connected between the inner surfaces of both sides of the discharge hopper, a plurality of baffles are equidistantly fixedly connected to the outer surface of the rotating shaft, the outer surface of the baffle away from the rotating shaft is connected to a brush head, the brush head conflicts with the inner wall of the lower hopper, and the motor is fixedly connected to the outer surface of the discharge hopper and the output end is connected to the end of the rotating shaft.

[0016] A method for using a synthetic dead-burned magnesia production device comprises the following steps: Step 1: Crushing the ore for producing magnesia bricks into slag, starting the motor, and then putting the slag raw material into the lower hopper. Under the action of gravity, the raw material passes through the circular channel between the first bracket and the first connecting block and falls on the stator grinding disc. Then it slides down to the grinding channel between the third grinding disc and the stator grinding disc. After the second grinding disc rotates, the shear force generated by the stator grinding disc will grind the medium-sized raw material into small particles. Step 2: The large gear, the middle gear and the small gear are driven by the motor at the same speed. Therefore, the speed of the third grinding disc, the second grinding disc and the first grinding disc driven by the small gear sleeve, the middle gear sleeve and the large gear sleeve will form a speed difference, which ensures the grinding efficiency while reducing the problem of coarse materials aggravating the damage of the grinding disc; Step 3: Start the air pump. The air pump will send air into the annular air inlet shell through the air supply pipe. At this time, the gas in the annular air inlet shell will enter the first connecting groove through the gap between the discharge hopper and the connecting shell. The air pump increases the amount of air entering to flush the residual dust on the surfaces of the first grinding disc, the second grinding disc, the third grinding disc and the stator grinding disc. Step 4. The ground slag passes through the grinding channel and falls into the discharge hopper. When it rolls towards the lower outlet, it will be blocked by the material control component. At this time, the motor is started to drive the shaft to rotate. The shaft surface follows the rotating baffle to intermittently release the discharge hopper outlet, and the brush head is squeezed and bent. When it enters the discharge hopper and rebounds, it has the effect of boosting the slag.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. When the present invention is used, air supply operation is performed through an air pump, an air supply pipe and an annular air inlet shell. The specially designed first connecting groove, second connecting groove, third connecting groove, first straight groove, second straight groove and third straight groove cooperate to reduce the temperature of the first grinding wheel, the second grinding wheel and the third grinding wheel. The tail gas can take away part of the heat of the grinding surface after passing through the grinding channel, thereby reducing the thermal fatigue of the metal material and further improving the service life of the equipment. At the same time, under the action of the airflow, the grinding efficiency is improved and the anti-clogging effect is produced.

[0018] 2. When the present invention is used, the first grinding disc, the second grinding disc and the third grinding disc are arranged to form a rotor grinding disc. The motor, the small gear, the medium gear, the large gear, the large gear sleeve, the medium gear sleeve and the small gear sleeve and other connecting parts are used to provide driving force for the rotor grinding disc, and then the stator grinding disc is used to grind the magnesium brick slag raw materials. In addition, by gradient designing the grinding area and the grinding speed, the coarse raw materials are ground at a low speed, and then the raw materials with gradually decreasing particle size are ground at a medium or high speed. This not only ensures the grinding efficiency but also reduces the problem that the coarse materials will aggravate the damage of the grinding disc, thereby improving the service life of the equipment.

[0019] 3. When the present invention is in use, the ground slag passes through the grinding channel and falls into the discharge hopper. When it rolls towards the lower outlet, it will be blocked by the material control component. At this time, the motor is started to drive the rotating shaft to rotate. The rotating shaft surface follows the rotating baffle to intermittently release the outlet of the discharge hopper, and the brush head is squeezed and bent. When it enters the discharge hopper and rebounds, it has the effect of boosting the slag. The design structure is simple and has the effect of controlling the slag discharge speed, thereby avoiding dust pollution caused by excessive discharge, and improving the use effect of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A perspective view of a synthetic dead-burned magnesia production device and method according to the present invention; Figure 2 A cross-sectional view of a synthetic dead-burned magnesia production device and method according to the present invention; Figure 3 This is a cross-sectional view of the outer shell of a synthetic dead-burned magnesia production device and method of the present invention; Figure 4 This is a schematic diagram of the drive assembly structure of a synthetic dead-burned magnesia production device and method of the present invention; Figure 5 This is a cross-sectional view of a rotor grinding disc assembly of a synthetic dead-burned magnesia production device and method of the present invention; Figure 6 This is a schematic diagram of the rotor grinding disc structure of a synthetic dead-burned magnesia production device and method of the present invention; Figure 7This is a schematic structural diagram of the first connecting tank of a synthetic dead-burned magnesia production device and method of the present invention; Figure 8 The present invention provides a schematic structural diagram of a material control component for a synthetic dead-burned magnesia production device and method.

[0021] In the figure: 1. housing; 11. power chamber; 12. top cover; 13. lower hopper; 14. flip cover; 15. discharge hopper; 16. connecting rib; 17. connecting shell; 18. stator grinding disc; 19. connecting rod; 2. air pump; 21. air supply pipe; 22. annular air inlet shell; 3. drive assembly; 301. motor; 302. small gear; 303. middle gear; 304. large gear; 305. large gear sleeve; 306. first bracket; 307. middle gear sleeve; 308. second bracket; 309. small gear 4. Rotor grinding disc assembly; 401. First connecting block; 402. Second connecting block; 403. Third connecting block; 404. First grinding disc; 405. Second grinding disc; 406. Third grinding disc; 407. Air guide cover; 408. First connecting groove; 409. Second connecting groove; 410. Third connecting groove; 411. First straight groove; 412. Second straight groove; 413. Third straight groove; 5. Material control assembly; 501. Rotating shaft; 502. Baffle; 503. Brush head; 504. Motor. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0023] Example 1: Please refer to Figures 1-8 As shown, the present invention provides a technical solution: Figure 1As shown, the synthetic dead-burned magnesia production device of this embodiment includes a shell 1, a power chamber 11 is fixedly connected to the left side of the outer surface of the shell 1, a top cover 12 is fixedly connected between the shell 1 and the top of the power chamber 11, a plurality of connecting rods 19 are fixedly connected to the bottom of the shell 1, a discharge hopper 15 is fixedly connected between the outer surfaces of the plurality of connecting rods 19, a plurality of connecting ribs 16 are fixedly connected to the top of the discharge hopper 15 at equal intervals, a connecting shell 17 is fixedly connected between the tops of the plurality of connecting ribs 16, a driving assembly 3 is provided near the left side of the top of the top cover 12, a rotor grinding disc assembly 4 is provided inside the connecting shell 17, and the driving assembly 3 includes Motor 301, the output end of motor 301 is fixedly connected to a small gear 302, a medium gear 303 and a large gear 304, the right side of the small gear 302 is meshed with a large gear sleeve 305, the right side of the medium gear 303 is meshed with a medium gear sleeve 307, and the right side of the large gear 304 is meshed with a small gear sleeve 309. The rotor grinding disc assembly 4 includes a first connecting block 401, a second connecting block 402 and a third connecting block 403. The bottoms of the first connecting block 401, the second connecting block 402 and the third connecting block 403 are respectively fixed with a first grinding disc 404, a second grinding disc 405 and a third grinding disc 406 by bolts.

[0024] The motor 301 is fixedly mounted on the top of the top cover 12 and the output end rotates through the top of the top cover 12 and extends into the inside of the power chamber 11. The large gear 304 is located below the middle gear 303, and the small gear 302 is located above the middle gear 303. The number of teeth of the middle gear 303 is greater than the number of teeth of the small gear 302 and less than the number of teeth of the large gear 304. The number of teeth of the middle gear sleeve 307 is less than the number of teeth of the large gear sleeve 305 and greater than the number of teeth of the small gear sleeve 309.

[0025] The inner surface wall of the large gear sleeve 305 is fixedly connected to the first bracket 306 extending downward, and the bottom of the first bracket 306 is fixedly connected to the top of the third connecting block 403. The inner surface wall of the medium gear sleeve 307 is fixedly connected to the second bracket 308 extending downward, and the bottom of the second bracket 308 is fixedly connected to the top of the second connecting block 402. The small gear sleeve 309 is fixedly connected to the top of the first connecting block 401, and the first connecting block 401 is rotatably connected to the inner surface wall of the connecting shell 17.

[0026] A stator grinding disc 18 is fixedly connected between the tops of multiple connecting rods 19. The top of the stator grinding disc 18 is conical. The stator grinding disc 18 is located inside the lower hopper 13 and the outer surface of the stator grinding disc 18 does not fit the inner wall of the lower hopper 13.

[0027] The bottoms of the first grinding disc 404 , the second grinding disc 405 and the third grinding disc 406 are all inclined. The distance between the first grinding disc 404 and the stator grinding disc 18 is smaller than the distance between the second grinding disc 405 and the stator grinding disc 18 , and the distance between the second grinding disc 405 and the stator grinding disc 18 is smaller than the distance between the third grinding disc 406 and the stator grinding disc 18 .

[0028] The top of the top cover 12 is fixedly connected to the lower hopper 13, and circular channels are provided at the center of the first bracket 306, the third connecting block 403, and the third grinding disc 406. The bottom of the lower hopper 13 and the circular channel are connected, and the outer surface of the discharge hopper 15 extends to the right to the outside of the outer shell 1 near the bottom, and an opening is provided on the right side of the bottom of the discharge hopper 15.

[0029] The steps of using the present invention are as follows: when in use, the ore used to produce magnesia bricks is first crushed into slag, and then the motor 301 is started, and the slag raw material is put into the lower hopper 13. Under the action of gravity, the raw material passes through the circular channel between the first bracket 306 and the first connecting block 401 and falls on the stator grinding disc 18, and then slides downward to the grinding channel between the third grinding disc 406 and the stator grinding disc 18. At this time, the motor 301 drives the small gear 302, the middle gear 303 and the large gear 304 to rotate. When the small gear 302 rotates, it drives the large gear sleeve 305 to rotate and drives the innermost third connecting block 403 to rotate through the first bracket 306. At this time, the third connecting block 403 will drive the third grinding disc 406 at the bottom to cooperate with the stator grinding disc 18. After the slag raw material is rubbed, its particle size is gradually reduced to a medium state, and then it enters the grinding channel with a smaller distance between the second grinding disc 405 and the stator grinding disc 18. When the middle gear 303 rotates and drives the middle gear sleeve 307 to rotate, the middle gear sleeve 307 will drive the second grinding disc 405 to rotate through the second bracket 308 and the second connecting block 402. At this time, after the second grinding disc 405 rotates, the shear force formed by the stator grinding disc 18 will grind the medium-sized raw material into a small-sized state. At this time, the raw material will further move outward between the first grinding disc 404 and the stator grinding disc 18, and the rotation of the large gear 304 will drive the small gear sleeve 309 to rotate, and the small gear sleeve 309 will drive the first grinding disc 404 through the first connecting block 401. After rotating, it cooperates with the stator grinding disc 18 to grind the small-sized slag raw materials into qualified particle sizes. When the raw material particle size is qualified, it will fall through the gap between the bottom of the first grinding disc 404 and the top of the stator grinding disc 18 to the gap between the stator grinding disc 18 and the discharge hopper 15, and finally be discharged from the right outlet of the discharge hopper 15 under the action of gravity, completing the grinding operation of the magnesium brick slag raw materials. In this device, since the number of teeth on the surface of the large gear 304, the middle gear 303 and the small gear 302 decreases in sequence, and the number of teeth on the surface of the small gear sleeve 309, the middle gear sleeve 307 and the large gear sleeve 305 engaged therewith increases in sequence, and the large gear 304, the middle gear 303 and the small gear 302 are driven by the motor 301 at the same speed, they are affected by the small gear sleeve 309 and the middle gear sleeve The rotational speeds of the third grinding disc 406, the second grinding disc 405 and the first grinding disc 404 driven by 307 and the large gear sleeve 305 will form a speed difference. This design achieves low-speed grinding of coarse raw materials by gradient design of the grinding area and grinding speed, and then grinds raw materials with gradually decreasing particle size at medium and high speeds. This not only ensures the grinding efficiency but also reduces the problem of coarse materials aggravating the damage to the grinding discs, thereby improving the service life of the equipment. The first connecting block 401, the second connecting block 402 and the third connecting block 403 are rotatably connected by bearings, and the first connecting block 401 is rotatably connected by bearings and the inner wall of the connecting shell 17. The connecting rod 19 is used to fix the discharge hopper 15 and the stator grinding disc 18, and the connecting shell 17 is fixed to the top of the discharge hopper 15 by the connecting rib 16.

[0030] Example 2: Figure 4-Figure 7As shown, the difference between the embodiment and the embodiment is that an air pump 2 is installed at the bottom of the power chamber 11, an annular air inlet shell 22 is fixedly connected between the connecting shell 17 and the outer surface of the lower hopper 13, the positions of the annular air inlet shell 22 and the connecting rib 16 correspond to each other, and an air supply pipe 21 is fixedly connected between the outer surface of the annular air inlet shell 22 and the output end of the air pump 2.

[0031] A second connecting groove 409 is provided at a position adjacent to the top of the first grinding disc 404 and the second grinding disc 405. A plurality of first straight grooves 411 are provided at equal intervals on the top of the first grinding disc 404. The second connecting groove 409 and the axis of the first grinding disc 404 are coaxially arranged. Two ends of the first straight grooves 411 pass through the inner and outer edges of the first grinding disc 404 respectively and are distributed at equal angles along the radial direction.

[0032] A third connecting groove 410 is provided at a position adjacent to the top of the second grinding disc 405 and the third grinding disc 406. A plurality of second straight grooves 412 are provided at equal intervals on the top of the second grinding disc 405. The third connecting groove 410 is coaxial with the axis of the second grinding disc 405. Both ends of the second straight grooves 412 pass through the inner and outer edges of the second grinding disc 405 respectively and are distributed at equal angles along the radial direction.

[0033] A plurality of third straight grooves 413 are equidistantly provided on the top of the third grinding disc 406, and a first connecting groove 408 is provided at the outer edge of the top of the first grinding disc 404. The first connecting groove 408 corresponds to the position of the annular air inlet shell 22 and is coaxially arranged with the axis of the first grinding disc 404. The two ends of the third straight groove 413 respectively pass through the inner and outer edges of the first grinding disc 404 and are distributed at equal angles along the radial direction. A downwardly inclined air deflector 407 is fixedly connected to the inner wall of the third connecting block 403, and the air deflector 407 is located above the inner end of the third straight groove 413. The top of the lower hopper 13 is hingedly connected to a flip cover 14.

[0034] The use steps of the present invention are as follows: start the air pump 2, and the air pump 2 will send air into the annular air intake shell 22 through the air supply pipe 21. At this time, the gas in the annular air intake shell 22 will enter the first connecting groove 408 through the gap between the discharge hopper 15 and the connecting shell 17, and then flow from the outside of the first grinding disc 404 to the inside along the first straight groove 411 and enter the second connecting groove 409. After that, the air will flow from the outside of the second grinding disc 405 to the inside along the second straight groove 412 and enter the third connecting groove 410. Finally, the air will follow the third straight groove 413 from the outside of the third grinding disc 406 to the inside of the third grinding disc 406. When the air discharged into the inside of the third grinding disc 406, it will flow downward under the guidance of the air guide cover 407 and pass between the first grinding disc 404, the second grinding disc 405, the third grinding disc 406 and the stator grinding disc 18. The air is drawn into the grinding channel of the equipment, and a part of the heat generated by the grinding is absorbed and discharged during the process, which has the effect of reducing the heat of the grinding surface, thereby reducing the thermal fatigue of the metal material and further improving the service life of the equipment. At the same time, the air introduced into the equipment from the outside will carry the raw material particles with a particle size smaller than the grinding channel size outward when passing through the grinding channel, thereby accelerating them to enter the grinding channel of the next area for grinding, which not only improves the grinding efficiency but also has a good anti-clogging effect. After the grinding is completed, the flip cover 14 is closed so that the incoming air cannot be discharged upward, thereby achieving the purpose of restricting the air flow direction. At this time, the air pump 2 is used to increase the amount of air entering the equipment to flush the residual dust on the surfaces of the first grinding disc 404, the second grinding disc 405, the third grinding disc 406 and the stator grinding disc 18, thereby achieving a cleaning effect.

[0035] Example 3: Figure 3 and Figure 8 As shown, the difference between the embodiment and the embodiment is that a material control component 5 is provided at the outlet below the discharge hopper 15, and the material control component 5 includes a rotating shaft 501 and a motor 504. The rotating shaft 501 is rotatably connected between the inner walls on both sides of the discharge hopper 15, and a plurality of baffles 502 are fixedly connected to the outer surface of the rotating shaft 501 at equal intervals. The outer surface of the baffle 502 away from the rotating shaft 501 is connected to a brush head 503, and the brush head 503 conflicts with the inner wall of the lower hopper 13. The motor 504 is fixedly connected to the outer surface of the discharge hopper 15 and the output end is connected to the end of the rotating shaft 501.

[0036] The usage steps of the present invention are as follows: the ground slag passes through the grinding channel and falls into the discharge hopper 15. When it rolls towards the lower outlet, it will be blocked by the material control component 5. At this time, the motor 504 is started to drive the rotating shaft 501 to rotate. The surface of the rotating shaft 501 follows the rotating baffle 502 to intermittently release the outlet of the discharge hopper 15, and the brush head 503 is squeezed and bent. When it rebounds after entering the discharge hopper 15, it has the effect of boosting the slag. The design structure is simple and has the effect of controlling the slag discharge speed, thereby avoiding dust pollution caused by excessive discharge, and improving the use effect of the equipment.

[0037] The effect and working principle of the entire mechanism are as follows: when in use, the ore used to produce magnesia bricks is first crushed into slag, then the motor 301 is started, and the slag raw material is put into the lower hopper 13. Under the action of gravity, the raw material passes through the circular channel between the first bracket 306 and the first connecting block 401 and falls on the stator grinding disc 18, and then slides downward to the grinding channel between the third grinding disc 406 and the stator grinding disc 18. At this time, the motor 301 drives the small gear 302, the middle gear 303 and the large gear 304 to rotate. When the small gear 302 rotates, it drives the large gear sleeve 305 to rotate and drives the innermost third connecting block 403 to rotate through the first bracket 306. At this time, the third connecting block 403 It will drive the third grinding disc 406 at the bottom to cooperate with the stator grinding disc 18 to rub the slag raw material so that its particle size is gradually reduced to a medium state, and then enter the grinding channel with a smaller distance between the second grinding disc 405 and the stator grinding disc 18. When the middle gear 303 rotates and drives the middle gear sleeve 307 to rotate, the middle gear sleeve 307 will drive the second grinding disc 405 to rotate through the second bracket 308 and the second connecting block 402. At this time, after the second grinding disc 405 rotates, the shear force formed by the stator grinding disc 18 will grind the medium-sized raw material into a small-sized state. At this time, the raw material will further move outward between the first grinding disc 404 and the stator grinding disc 18, and the large gear 304 will drive the small gear 307 to rotate during the rotation. The sleeve 309 rotates, and the small gear sleeve 309 drives the first grinding disc 404 to rotate through the first connecting block 401, and then cooperates with the stator grinding disc 18 to grind the small-particle slag raw materials into qualified particle sizes. When the raw material particle size is qualified, it will pass through the gap between the bottom of the first grinding disc 404 and the top of the stator grinding disc 18 and fall into the gap between the stator grinding disc 18 and the discharge hopper 15, and finally be discharged from the right outlet of the discharge hopper 15 under the action of gravity, completing the magnesia brick slag raw material grinding operation. In this device, since the number of teeth on the surface of the large gear 304, the middle gear 303 and the small gear 302 decreases in sequence, and the number of teeth on the surface of the small gear sleeve 309, the middle gear sleeve 307 and the large gear sleeve 305 engaged therewith increases in sequence, and the large gear 304, the middle gear 303 and the small gear 302 are driven by the motor 301 at the same speed. Therefore, the speed of the third grinding disc 406, the second grinding disc 405 and the first grinding disc 404 driven by the small gear sleeve 309, the middle gear sleeve 307 and the large gear sleeve 305 will form a speed difference. This design achieves low-speed grinding of coarse raw materials by gradient design of the grinding area and the grinding speed, and then grinds raw materials with gradually decreasing particle size at medium and high speeds. This ensures the grinding efficiency while reducing the problem that coarse materials will aggravate the damage to the grinding disc, thereby increasing the service life of the equipment. The magnesia brick slag raw materials ground into small particles have an increased surface area in the subsequent synthesis, sintering and reaction, which can effectively improve the production efficiency of subsequent processes; During use, start the air pump 2, and the air pump 2 will send air into the annular air intake shell 22 through the air supply pipe 21. At this time, the gas in the annular air intake shell 22 will enter the first connecting groove 408 through the gap between the discharge hopper 15 and the connecting shell 17, and then flow from the outside of the first grinding disc 404 to the inside along the first straight groove 411 and enter the second connecting groove 409. After that, the air will flow from the outside of the second grinding disc 405 to the inside along the second straight groove 412 and enter the third connecting groove 410. Finally, the air will follow the third straight groove 413 from the outside of the third grinding disc 406 to the inside of the third grinding disc 406. When the air discharged into the inside of the third grinding disc 406, it will flow downward under the guidance of the air guide cover 407 and pass through the gap between the first grinding disc 404, the second grinding disc 405, the third grinding disc 406 and the stator grinding disc 18. When the air flows through the grinding channel, part of the heat generated by the grinding can be absorbed and discharged during the process, which has the effect of reducing the heat of the grinding surface, thereby reducing the thermal fatigue of the metal material and further improving the service life of the equipment. At the same time, when the air introduced from the outside into the equipment passes through the grinding channel, the airflow will carry the raw material particles with a particle size smaller than the grinding channel size outward, thereby accelerating them to enter the grinding channel of the next area for grinding, which not only improves the grinding efficiency but also has a good anti-clogging effect. After the grinding is completed, the flip cover 14 is closed so that the entered air cannot be discharged upward, thereby achieving the purpose of restricting the air flow direction. At this time, the air pump 2 increases the amount of air entering to flush the residual dust on the surfaces of the first grinding disc 404, the second grinding disc 405, the third grinding disc 406 and the stator grinding disc 18, thereby achieving a cleaning effect. The ground slag passes through the grinding channel and falls into the discharge hopper 15. When it rolls towards the lower outlet, it will be blocked by the material control component 5. At this time, the motor 504 is started to drive the rotating shaft 501 to rotate. The surface of the rotating shaft 501 follows the rotating baffle 502 to intermittently release the outlet of the discharge hopper 15, and the brush head 503 is squeezed and bent. When it rebounds after entering the discharge hopper 15, it has the effect of boosting the slag. This design has a simple structure and can control the discharge speed of the slag, thereby avoiding dust pollution caused by excessive discharge, thereby improving the use effect of the equipment.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A synthetic dead-burned magnesia production device, comprising a housing (1), wherein the left side of the outer surface of the housing (1) is fixedly connected to a power chamber (11), and a top cover (12) is fixedly connected between the housing (1) and the top of the power chamber (11), characterized in that: A plurality of connecting rods (19) are fixedly connected to the bottom of the outer shell (1), a discharge hopper (15) is fixedly connected between the outer surfaces of the plurality of connecting rods (19), a plurality of connecting ribs (16) are fixedly connected to the top of the discharge hopper (15) at equal intervals, a connecting shell (17) is fixedly connected between the tops of the plurality of connecting ribs (16), a driving assembly (3) is provided near the left side of the top of the top cover (12), and a rotor grinding disc assembly (4) is provided inside the connecting shell (17); The drive assembly (3) comprises a motor (301), an output end of the motor (301) being fixedly connected to a small gear (302), a middle gear (303) and a large gear (304), the right side of the small gear (302) being meshedly connected to a large gear sleeve (305), the right side of the middle gear (303) being meshedly connected to a middle gear sleeve (307), and the right side of the large gear (304) being meshedly connected to a small gear sleeve (309); The rotor grinding disc assembly (4) comprises a first connecting block (401), a second connecting block (402) and a third connecting block (403); a first grinding disc (404), a second grinding disc (405) and a third grinding disc (406) are respectively fixedly mounted on the bottoms of the first connecting block (401), the second connecting block (402) and the third connecting block (403) by bolts.

2. The synthetic dead-burned magnesia production device according to claim 1, characterized in that: The motor (301) is fixedly mounted on the top of the top cover (12) and the output end rotates through the top of the top cover (12) and extends into the interior of the power chamber (11). The large gear (304) is located below the middle gear (303), and the small gear (302) is located above the middle gear (303). The number of teeth of the middle gear (303) is greater than the number of teeth of the small gear (302) and less than the number of teeth of the large gear (304). The number of teeth of the middle gear sleeve (307) is less than the number of teeth of the large gear sleeve (305) and greater than the number of teeth of the small gear sleeve (309). The top of the top cover (12) is fixedly connected to a lower hopper (13). The bottom of the lower hopper (13) is connected to a circular channel. The top of the lower hopper (13) is hingedly connected to a flip cover (14).

3. The synthetic dead-burned magnesia production device according to claim 1, characterized in that: The inner surface wall of the large tooth sleeve (305) is fixedly connected to a first bracket (306) extending downward, the bottom of the first bracket (306) is fixedly connected to the top of the third connecting block (403), the inner surface wall of the medium tooth sleeve (307) is fixedly connected to a second bracket (308) extending downward, the bottom of the second bracket (308) is fixedly connected to the top of the second connecting block (402), the small tooth sleeve (309) is fixedly connected to the top of the first connecting block (401), and the first connecting block (401) is rotatably connected to the inner surface wall of the connecting shell (17).

4. The synthetic dead-burned magnesia production device according to claim 2, characterized in that: A stator grinding disc (18) is fixedly connected between the tops of the plurality of connecting rods (19), the top of the stator grinding disc (18) is arranged in a conical shape, the stator grinding disc (18) is located inside the lower hopper (13), and the outer surface of the stator grinding disc (18) does not fit the inner wall of the lower hopper (13); The bottoms of the first grinding disc (404), the second grinding disc (405) and the third grinding disc (406) are all inclined; the distance between the first grinding disc (404) and the stator grinding disc (18) is smaller than the distance between the second grinding disc (405) and the stator grinding disc (18); and the distance between the second grinding disc (405) and the stator grinding disc (18) is smaller than the distance between the third grinding disc (406) and the stator grinding disc (18).

5. The synthetic dead-burned magnesia production device according to claim 3, characterized in that: Circular channels are provided at the centers of the first bracket (306), the third connecting block (403), and the third grinding disc (406). The outer surface of the discharge hopper (15) extends rightward near the bottom to the outside of the housing (1). An opening is provided at the right side of the bottom of the discharge hopper (15).

6. The synthetic dead-burned magnesia production device according to claim 1, characterized in that: An air pump (2) is installed at the bottom of the power chamber (11), an annular air intake shell (22) is fixedly connected between the connecting shell (17) and the outer surface of the lower hopper (13), the annular air intake shell (22) and the connecting rib (16) are positioned correspondingly, and an air supply pipe (21) is fixedly connected between the outer surface of the annular air intake shell (22) and the output end of the air pump (2).

7. The synthetic dead-burned magnesia production device according to claim 1, characterized in that: A second connecting groove (409) is provided at adjacent positions on the tops of the first grinding disc (404) and the second grinding disc (405), a plurality of first straight grooves (411) are provided at equal intervals on the top of the first grinding disc (404), the second connecting groove (409) and the axis of the first grinding disc (404) are coaxially arranged, and the two ends of the first straight grooves (411) respectively pass through the inner and outer edges of the first grinding disc (404) and are distributed at equal angles along the radial direction.

8. The synthetic dead-burned magnesia production device according to claim 1, characterized in that: A third connecting groove (410) is provided at adjacent positions on the tops of the second grinding disc (405) and the third grinding disc (406), and a plurality of second straight grooves (412) are provided at equal intervals on the top of the second grinding disc (405). The third connecting groove (410) and the axis of the second grinding disc (405) are coaxially arranged, and the two ends of the second straight grooves (412) respectively pass through the inner and outer edges of the second grinding disc (405) and are distributed at equal angles along the radial direction.

9. The synthetic dead-burned magnesia production device according to claim 7, characterized in that: The top of the third grinding disc (406) is provided with a plurality of third straight grooves (413) at equal intervals. The outer edge of the top of the first grinding disc (404) is provided with a first connecting groove (408). The first connecting groove (408) corresponds to the position of the annular air inlet shell (22) and is coaxially arranged with the axis of the first grinding disc (404). The two ends of the third straight groove (413) respectively pass through the inner and outer edges of the first grinding disc (404) and are distributed at equal angles along the radial direction. The inner surface wall of the third connecting block (403) is fixedly connected with a downwardly inclined air deflector (407). The air deflector (407) is located in the third straight groove (4 13) Above the inner end, a material control assembly (5) is provided at the outlet below the discharge hopper (15), the material control assembly (5) comprising a rotating shaft (501) and a motor (504), the rotating shaft (501) being rotatably connected between the inner walls on both sides of the discharge hopper (15), a plurality of baffles (502) being fixedly connected at equal intervals to the outer surface of the rotating shaft (501), a brush head (503) being connected to the outer surface of the baffle (502) away from the rotating shaft (501), and the motor (504) being fixedly connected to the outer surface of the discharge hopper (15) and having its output end connected to the end of the rotating shaft (501).

10. A method for using a synthetic dead-burned magnesia production device according to any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: crush the ore for producing magnesia bricks into slag, start the motor (301), and then put the slag raw material into the lower hopper (13). Under the action of gravity, the raw material passes through the circular channel between the first bracket (306) and the first connecting block (401) and falls on the stator grinding disc (18). Then, it slides downward to the grinding channel between the third grinding disc (406) and the stator grinding disc (18). After the second grinding disc (405) rotates, the shear force generated by the stator grinding disc (18) will grind the medium-sized raw material into small-sized particles. Step 2: The large gear (304), the middle gear (303) and the small gear (302) are driven by the motor (301) at the same speed. Therefore, the speeds of the third grinding disc (406), the second grinding disc (405) and the first grinding disc (404) driven by the small gear sleeve (309), the middle gear sleeve (307) and the large gear sleeve (305) will form a speed difference, thereby ensuring the grinding efficiency while reducing the problem of coarse materials aggravating the damage to the grinding disc; Step 3: Start the air pump (2). The air pump (2) will deliver air into the annular air inlet shell (22) through the air delivery pipe (21). At this time, the gas in the annular air inlet shell (22) will enter the first connecting groove (408) through the gap between the discharge hopper (15) and the connecting shell (17). The air pump (2) increases the amount of air entering, thereby flushing the dust remaining on the surfaces of the first grinding disc (404), the second grinding disc (405), the third grinding disc (406) and the stator grinding disc (18). Step 4: The ground slag passes through the grinding channel and falls into the discharge hopper (15). When it rolls toward the lower outlet, it is blocked by the material control component (5). At this time, the motor (504) is started to drive the rotating shaft (501) to rotate. The surface of the rotating shaft (501) follows the rotating baffle (502) to intermittently release the outlet of the discharge hopper (15), and the brush head (503) is squeezed and bent. When it enters the discharge hopper (15) and rebounds, it has the effect of boosting the slag.

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