A roller grinding equipment for cement manufacturing

Abstract

The present invention discloses a roller grinding device for cement manufacturing, which belongs to the technical field of grinding equipment, and includes a grinding box, in which a plurality of rotating disks are sequentially arranged from top to bottom, and a variable speed grinding assembly is arranged on the outer peripheral side of the rotating disk. In the present invention, the speed of the first transmission shaft is adjusted to be less than the speed of the second transmission shaft, so that the speed of the three rotating plates gradually increases from top to bottom, so that the speed of the upper rotating disk is the smallest but the torque is the largest, so that there is enough extrusion force to crush the initial larger pieces of cement raw materials, and the rotation speed of the bottom rotating disk is the fastest, which can have enough rotation speed to perform high-speed grinding of the processed and refined cement raw materials through the grinding roller, and can realize multi-layer step-by-step processing of cement raw materials, improve the pertinence of cement raw material processing, and enable the cement raw materials to be fully ground, and improve the powder effect of cement raw materials.

Description

Technical Field

[0001] The invention belongs to the technical field of grinding equipment, and in particular relates to roller grinding equipment for cement manufacturing. Background Art

[0002] Grinding in cement production refers to feeding cement raw materials and an appropriate amount of gypsum or other regulating materials into a cement mill for grinding to produce cement. It is a very important link in cement production and requires the use of grinding equipment to assist in processing.

[0003] The invention of Chinese patent application number: CN202010301466.0 discloses a roller grinding mill for manufacturing aluminate cement, comprising a box body, the bottom surface of the box body is fixedly connected to a motor seat, a motor is fixedly installed inside the motor seat, the output shaft of the motor is fixedly connected to a rotating shaft, the upper end of the rotating shaft passes through the box body and extends to the inside of the box body and is fixedly connected to a turntable, the roller grinding mill for manufacturing aluminate cement, by using a spring to connect a sliding rod sleeved in a sleeve hole, using an oil pipe connected to the top surface of the turntable to fill pressure oil into the inner cavity of the turntable, through Rotate the threaded rod to move the lower slide plate up and down, control the oil pressure in the inner cavity, and drive the slide rod to extend and slide in the sleeve hole, so as to change the distance between the mobile roller and the fixed roller. It can adapt to the needs of different cement material particle sizes, control different minimum grinding sizes, increase the production range of the equipment, improve economic benefits, and have good use effects. However, in the actual application process, there are differences in the grinding intensity requirements for cement raw materials at different stages. Most powder equipment has the same grinding intensity and speed for cement raw materials, which is difficult to meet the needs of different stages, thus affecting the grinding effect. Summary of the invention

[0004] The purpose of the present invention is to solve the problem that the grinding force requirements for cement raw materials at different stages are different, and to propose a roller grinding equipment for cement manufacturing.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A roller grinding device for cement manufacturing, comprising a grinding box, wherein a plurality of rotating disks are sequentially arranged from top to bottom in the grinding box, a variable speed grinding assembly is arranged on the outer circumference of the rotating disk, an auxiliary assembly is arranged inside the rotating disk, and a discharging and sorting assembly is arranged at the bottom of the grinding box;

[0007] The variable speed grinding assembly includes multiple grinding rollers, an annular groove is opened on the outer peripheral side of the rotating disk, the grinding roller is rotatably connected to the annular groove through a connecting shaft, and multiple grinding groove seats are fixedly connected to the inner wall of the grinding box in sequence from top to bottom, a first transmission shaft and a second transmission shaft are respectively arranged between two opposite rotating disks, and one end of the first transmission shaft is rotatably connected to one end of the second transmission shaft, the first transmission shaft is fixedly connected to the bottom of one of the rotating disks, and one end of the second transmission shaft is fixedly connected to the top of the other rotating disk, a first gear is fixedly connected to the outer surface of the first transmission shaft, and a second gear is fixedly connected to the outer surface of the second transmission shaft, and the first gear and the second gear are both meshed with the same variable speed gear on one side.

[0008] As a further description of the above technical solution:

[0009] The bottom of the speed change gear is rotatably connected with a mounting rod through a rotating shaft and a bearing, one side of the mounting rod is fixedly connected with a lower hopper, and the top of the lower hopper is fixedly connected to the bottom of the grinding tank seat.

[0010] As a further description of the above technical solution:

[0011] The cross-section shape of the inner wall of the grinding groove seat is V-shaped, and the grinding roller is relatively slidably connected in the grinding groove seat.

[0012] As a further description of the above technical solution:

[0013] The discharging and sorting component includes a rotating table, the bottom of the inner wall of the grinding box is rotatably connected to a rotating shaft through a bearing, the top of the rotating shaft is fixedly connected to the bottom of the rotating disk located at the bottom, the outer surface of the rotating shaft is fixedly connected to the rotating table, and a plurality of partitions are distributed in an equiangular circular array at the bottom of the rotating table, connecting pipes are fixedly connected to both sides of the grinding box, and a second through groove and a first through groove are respectively opened at the connection between the connecting pipe and the grinding box from top to bottom, a filter element is fixedly connected to the top of the inner wall of the grinding box, the second through groove is located between the filter element and the topmost rotating disk, the bottom of the connecting pipe is connected to an air supply pipe, and the other end of the air supply pipe is fixedly connected to an air intake pump.

[0014] As a further description of the above technical solution:

[0015] A plurality of mounting brackets are fixedly connected to the inner circumference of the rotating table, a sliding hole is opened on one side of the mounting bracket, a sliding rod is slidably connected in the sliding hole, a vibration block is fixedly connected to one side of the sliding rod, and the vibration block fits with the inner circumference of the rotating table during movement, an end of the sliding rod away from the vibration block is fixedly connected to an extrusion wheel, a first spring is sleeved on the outer surface of the sliding rod, and two ends of the first spring are respectively fixedly connected to one side of the mounting bracket and one side of the extrusion wheel.

[0016] As a further description of the above technical solution:

[0017] A fixing ring is fixedly connected to the bottom of the inner wall of the grinding box, and a plurality of extrusion blocks are fixedly connected to the outer peripheral side of the fixing ring. The cross-sectional shape of the extrusion block is trapezoidal, and the plurality of extrusion blocks are distributed in an equiangular circular array along the axis of the fixing ring, and the extrusion blocks are periodically fitted with the extrusion wheel.

[0018] As a further description of the above technical solution:

[0019] The auxiliary component includes multiple air bags, multiple cavities are opened at the bottom of the rotating disk, the air bags are fixedly connected to one side of the inner wall of the inner cavity, the side of the air bags away from the inner wall of the inner cavity is fixedly connected to a sliding plate, the side of the sliding plate away from the air bags is attached to a cam, both sides of the cam are fixedly connected to linkage shafts, both ends of the linkage shafts are rotatably connected to the inner wall of the inner cavity through bearings, two telescopic rods are fixedly connected to the side of the sliding plate away from the cam, the other end of the telescopic rod is fixedly connected to one side of the inner wall of the inner cavity, a second spring is sleeved on the outer surface of the telescopic rod, and the two ends of the second spring are respectively fixedly connected to one side of the sliding plate and one side of the inner wall of the inner cavity.

[0020] As a further description of the above technical solution:

[0021] Two air inlet pipes are fixedly connected to the bottom of the airbag, and one end of the air inlet pipe away from the airbag extends to the outside of the inner cavity. A nozzle is fixedly connected to one side of the airbag, and one end of the nozzle away from the airbag penetrates the inner cavity and extends into the annular groove. Both the nozzle and the air inlet pipe are provided with a one-way valve.

[0022] As a further description of the above technical solution:

[0023] One end of the connecting shaft extends to the bottom of the rotating disk and is fixedly connected to a driving wheel, one end of the linkage shaft extends to the outside of the inner cavity and is fixedly connected to a driven wheel, and a transmission belt is connected between the driven wheel and the driving wheel.

[0024] As a further description of the above technical solution:

[0025] Support blocks are fixedly connected to both sides of the bottom of the grinding box, and the bottoms of the two support blocks are fixedly connected to the same base, a driving motor is fixedly installed at the center position of the top of the base through a mounting plate, one end of the rotating shaft extends to the outside of the grinding box and is fixedly connected to one end of the output shaft of the driving motor, the bottom of the air intake pump is fixedly connected to the top of the base, the top of the grinding box is fixedly connected to a discharge conveying pipe, one end of the discharge conveying pipe extends to the inside of the grinding box, and the other end of the discharge conveying pipe is connected to an external output device, a feed pipe is fixedly connected to one side of the grinding box, one end of the feed pipe extends to the inside of the grinding box, and the other end of the feed pipe is connected to an external feeding device.

[0026] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0027] 1. In the present invention, by setting a variable speed grinding assembly, when the cement raw material falls onto the uppermost rotating plate, the cement raw material is diffused toward the periphery of the rotating plate under the action of centrifugal force, and the cement raw material enters the grinding groove seat, and the grinding roller cooperates with the grinding groove seat to grind the cement raw material inside, and the crushed cement raw material is discharged from the gap below the grinding groove seat and guided to the rotating plate of the next layer through the lower hopper, and the above process is repeated. At the same time, the driving motor drives the lowermost rotating plate to rotate, and the lowermost rotating plate drives the first transmission shaft to rotate through the second transmission shaft, the second gear, the variable speed gear and the first gear. When the speed of the first transmission shaft is adjusted to be lower than that of the second transmission shaft through the speed change gear, the speed of the three rotating plates gradually increases from top to bottom, so that the speed of the upper rotating disk is the smallest but the torque is the largest, so there is enough extrusion force to crush the initial larger pieces of cement raw materials, and the rotation speed of the lowest rotating disk is the fastest, which can have enough rotation speed to perform high-speed grinding of the processed refined cement raw materials through the grinding roller, and can realize multi-layer step-by-step processing of cement raw materials, improve the targeted processing of cement raw materials, and make the cement raw materials fully ground, thereby improving the powder effect of cement raw materials.

[0028] 2. In the present invention, by setting a discharging and sorting component, the cement raw material after three times of processing becomes powder and falls on the rotating table, slides down to the bottom along the inclined surface of the rotating table, and accumulates at the bottom. The rotating table drives the extrusion wheel to revolve around the fixed ring through the mounting frame and the sliding rod, and the extrusion block cooperates with the first spring to make reciprocating motion. The extrusion wheel drives the vibration block to reciprocate and vibrate the rotating table through the sliding rod, which assists the powdered cement raw material to slide down and prevents the cement raw material from adhering to the rotating table. At the same time, the rotating shaft drives the partition to rotate through the rotating table, and the partition drives the powder to periodically pass through the first through groove Under the Noble effect, the powder passes through the first channel, the connecting pipe and the second channel into the top of the grinding box. The discharge conveying pipe extracts air from the grinding box to collect the powder. The filter element will filter and block the large particles of cement raw materials in the powder. The blocked large particles of cement raw materials will fall back onto the uppermost rotating plate and continue to be repeatedly ground, thereby realizing the automatic collection of the finished powder. The knocking of the vibration block can reduce the adhesion of the powder and increase the collection amount. At the same time, the filter element can block and filter the unqualified powder and allow it to be ground for the second time, thereby improving the quality of the finished powder.

[0029] 3. In the present invention, by setting up auxiliary components, when the cement raw material is ground, the grinding roller will rotate under the action of friction, and the grinding roller drives the cam to rotate through the connecting shaft, the driving wheel, the transmission belt, the driven wheel and the linkage shaft. The cam cooperates with the telescopic rod and the second spring sliding plate to make reciprocating motion, so that the sliding plate drives the airbag to periodically expand or contract. The air intake pipe, the one-way valve and the nozzle can realize the one-way delivery of the airflow, so that the nozzle can blow the airflow into the annular groove and the grinding groove seat. The airflow can drive the ground and formed cement raw materials to separate from the annular groove and the grinding groove seat. On the one hand, it can prevent the powder from adhering to the annular groove or the grinding groove seat, affecting the grinding effect of the cement raw materials. On the other hand, it can accelerate the discharge of the formed cement raw materials, thereby accelerating the discharge efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the three-dimensional structure of a roller grinding device for cement manufacturing proposed by the present invention;

[0031] Figure 2 This is a schematic diagram of a three-dimensional cross-sectional structure of a roller grinding device for cement manufacturing proposed by the present invention;

[0032] Figure 3 A roller grinding device for cement manufacturing proposed by the present invention Figure 2 A schematic diagram of the enlarged structure of part A;

[0033] Figure 4 This is a schematic diagram of the internal disassembly structure of a roller grinding device for cement manufacturing proposed by the present invention;

[0034] Figure 5 This is a schematic diagram of the three-dimensional disassembled structure of a variable speed grinding assembly of a roller grinding equipment for cement manufacturing proposed by the present invention;

[0035] Figure 6 A roller grinding device for cement manufacturing proposed by the present invention Figure 5 A schematic diagram of the enlarged structure of part B;

[0036] Figure 7 This is a schematic diagram of the three-dimensional disassembled structure of the auxiliary components of a roller grinding device for cement manufacturing proposed by the present invention;

[0037] Figure 8 A roller grinding device for cement manufacturing proposed by the present invention Figure 7 Schematic diagram of the enlarged structure of part C.

[0038] Legend:

[0039] 1. Discharge conveying pipe; 2. Grinding box; 3. Base; 4. Support block; 5. Discharge sorting assembly; 501. Connecting pipe; 502. Air pipe; 503. Air intake pump; 504. First through slot; 505. Second through slot; 506. Filter element; 507. Turntable; 508. Partition plate; 509. Fixed ring; 510. Extrusion block; 511. Vibration block; 512. Mounting frame; 513. Extrusion wheel; 514. Sliding rod; 515. First spring; 6. Feed pipe; 7. Variable speed grinding assembly; 701. Grinding slot seat; 702. Unloading Bucket; 703, grinding roller; 704, connecting shaft; 705, first transmission shaft; 706, first gear; 707, second transmission shaft; 708, second gear; 709, speed change gear; 710, mounting rod; 8, auxiliary components; 801, nozzle; 802, driving wheel; 803, transmission belt; 804, driven wheel; 805, airbag; 806, telescopic rod; 807, second spring; 808, sliding plate; 809, linkage shaft; 810, cam; 811, intake pipe; 9, rotating disk; 10, driving motor; 11, rotating shaft. DETAILED DESCRIPTION

[0040] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] See also Figure 1-Figure 8 , the present invention provides a technical solution:

[0042] A roller grinding equipment for cement manufacturing comprises a grinding box 2, wherein a plurality of rotating disks 9 are sequentially arranged in the grinding box 2 from top to bottom, a variable speed grinding assembly 7 is arranged on the outer peripheral side of the rotating disk 9, an auxiliary assembly 8 is arranged inside the rotating disk 9, a discharging and sorting assembly 5 is arranged at the bottom of the grinding box 2, support blocks 4 are fixedly connected to both sides of the bottom of the grinding box 2, and the bottoms of the two support blocks 4 are fixedly connected to the same base 3, a driving motor 10 is fixedly installed at the center position of the top of the base 3 through a mounting plate, one end of a rotating shaft 11 extends to the outside of the grinding box 2 and is fixedly connected to one end of the output shaft of the driving motor 10, the bottom of an air intake pump 503 is fixedly connected to the top of the base 3, a discharging conveying pipe 1 is fixedly connected to the top of the grinding box 2, one end of the discharging conveying pipe 1 extends to the inside of the grinding box 2, and the other end of the discharging conveying pipe 1 is connected to an external output device, a feeding pipe 6 is fixedly connected to one side of the grinding box 2, one end of the feeding pipe 6 extends to the inside of the grinding box 2, and the other end of the feeding pipe 6 is connected to an external feeding device.

[0043] The variable speed grinding assembly 7 includes a plurality of grinding rollers 703, an annular groove is provided on the outer peripheral side of the rotating disk 9, the grinding rollers 703 are rotatably connected in the annular groove through a connecting shaft 704, a plurality of grinding groove seats 701 are fixedly connected in sequence from top to bottom on the inner wall of the grinding box 2, a first transmission shaft 705 and a second transmission shaft 707 are respectively provided between two opposite rotating disks 9, and one end of the first transmission shaft 705 is rotatably connected to one end of the second transmission shaft 707, the first transmission shaft 705 is fixedly connected to the bottom of one of the rotating disks 9, and one end of the second transmission shaft 707 is fixedly connected to the top of the other rotating disk 9 A first gear 706 is fixedly connected to the outer surface of the first transmission shaft 705, a second gear 708 is fixedly connected to the outer surface of the second transmission shaft 707, the first gear 706 and the second gear 708 are meshed with the same speed change gear 709 on one side, the speed change gear 709 is rotatably connected to a mounting rod 710 at the bottom through a rotating shaft and a bearing, a lower hopper 702 is fixedly connected to one side of the mounting rod 710, the top of the lower hopper 702 is fixedly connected to the bottom of the grinding tank seat 701, the cross-section of the inner wall of the grinding tank seat 701 is V-shaped, and the grinding roller 703 is relatively slidably connected to the grinding tank seat 701.

[0044] The specific implementation method is as follows: by setting a variable speed grinding assembly 7, when the cement raw material falls onto the uppermost rotating plate, the cement raw material is diffused toward the periphery of the rotating plate under the action of centrifugal force, and the cement raw material enters the grinding groove seat 701, and the grinding roller 703 cooperates with the grinding groove seat 701 to grind the cement raw material inside, and the crushed cement raw material is discharged from the gap below the grinding groove seat 701 and guided to the rotating plate of the next layer through the lower hopper 702, and the above process is repeated. At the same time, the driving motor 10 drives the lowermost rotating plate to rotate, and the lowermost rotating plate is driven by the second transmission shaft 707 and the second gear 708. , the speed gear 709 and the first gear 706 drive the first transmission shaft 705 to rotate. At this time, the speed of the first transmission shaft 705 is adjusted to be less than the speed of the second transmission shaft 707, so that the speeds of the three rotating plates gradually increase from top to bottom, so that the speed of the upper rotating disk 9 is the smallest but the torque is the largest, so that there is enough extrusion force to crush the initial larger pieces of cement raw materials, and the rotation speed of the lowest rotating disk 9 is the fastest, and there is enough rotation speed to perform high-speed grinding of the processed refined cement raw materials through the grinding roller 703, thereby realizing multi-layer step-by-step processing of the cement raw materials.

[0045] The discharging and sorting component 5 includes a rotating table 507. The bottom of the inner wall of the grinding box 2 is rotatably connected to a rotating shaft 11 through a bearing. The top of the rotating shaft 11 is fixedly connected to the bottom of the rotating disk 9 located at the bottom. The outer surface of the rotating shaft 11 is fixedly connected to the rotating table 507. A plurality of partitions 508 are distributed in an equiangular circular array at the bottom of the rotating table 507. Connecting pipes 501 are fixedly connected to both sides of the grinding box 2. A second through groove 505 and a first through groove 504 are respectively provided at the connection between the connecting pipe 501 and the grinding box 2 from top to bottom. A filter element 506 is fixedly connected to the top of the inner wall of the grinding box 2. The second through groove 505 is located between the filter element 506 and the rotating disk 9 at the top. The bottom of the connecting pipe 501 is connected to an air supply pipe 502. The other end of the air supply pipe 502 is fixedly connected to an air intake pump 503. A plurality of installation parts are fixedly connected to the inner circumference of the rotating table 507. A mounting frame 512 is provided with a sliding hole on one side of the mounting frame 512, in which a sliding rod 514 is slidably connected, a vibration block 511 is fixedly connected to one side of the sliding rod 514, and the vibration block 511 fits against the inner circumference of the rotating table 507 during movement, and an end of the sliding rod 514 away from the vibration block 511 is fixedly connected to an extrusion wheel 513, and a first spring 515 is sleeved on the outer surface of the sliding rod 514, and the two ends of the first spring 515 are respectively fixedly connected to one side of the mounting frame 512 and one side of the extrusion wheel 513, a fixing ring 509 is fixedly connected to the bottom of the inner wall of the grinding box 2, and a plurality of extrusion blocks 510 are fixedly connected to the outer circumference of the fixing ring 509, the cross-section of the extrusion block 510 is trapezoidal, and the plurality of extrusion blocks 510 are distributed in an equiangular circular array along the axis of the fixing ring 509, and the extrusion blocks 510 periodically fit against the extrusion wheel 513.

[0046] The specific implementation method is as follows: by setting a discharging and sorting component 5, the cement raw material after three times of processing becomes powder and falls on the rotating table 507, and slides down to the bottom along the inclined surface of the rotating table 507, and accumulates at the bottom. The rotating table 507 drives the extrusion wheel 513 to revolve around the fixed ring 509 through the mounting frame 512 and the sliding rod 514, and the extrusion block 510 cooperates with the first spring 515 to make reciprocating motion. The extrusion wheel 513 drives the vibration block 511 to reciprocate and vibrate the rotating table 507 through the sliding rod 514, so as to assist the powdered cement raw material to slide down and prevent the cement raw material from adhering to the rotating table 507. At the same time, the rotating The shaft 11 drives the partition 508 to rotate through the rotating table 507, and the partition 508 drives the powder to periodically pass through the first slot 504. Under the Nubler effect, the powder passes through the first slot, the connecting pipe 501 and the second slot 505 to enter the top of the grinding box 2. The discharge conveying pipe 1 draws air from the grinding box 2 to collect the powder. The filter element 506 will filter and block the large particles of cement raw materials in the powder. The blocked large particles of cement raw materials will fall back onto the uppermost rotating plate and continue to be repeatedly ground, thereby realizing the automatic collection of the finished powder. The knocking of the vibration block 511 can reduce the adhesion of the powder and increase the collection amount.

[0047] The auxiliary component 8 includes a plurality of airbags 805, and a plurality of inner cavities are formed at the bottom of the rotating disk 9. The airbags 805 are fixedly connected to one side of the inner wall of the inner cavity. A sliding plate 808 is fixedly connected to the side of the airbag 805 away from the inner wall of the inner cavity. A cam 810 is attached to the side of the sliding plate 808 away from the airbag 805. Both sides of the cam 810 are fixedly connected to linkage shafts 809. Both ends of the linkage shafts 809 are rotatably connected to the inner wall of the inner cavity through bearings. Two telescopic rods 806 are fixedly connected to the side of the sliding plate 808 away from the cam 810. The other end of the telescopic rod 806 is fixedly connected to one side of the inner wall of the inner cavity. A second spring 807 is sleeved on the outer surface of the telescopic rod 806. Both ends of the second spring 807 They are respectively fixedly connected to one side of the sliding plate 808 and one side of the inner wall of the inner cavity, two air inlet pipes 811 are fixedly connected to the bottom of the airbag 805, and one end of the air inlet pipe 811 away from the airbag 805 extends to the outside of the inner cavity, one side of the airbag 805 is fixedly connected to a nozzle 801, and one end of the nozzle 801 away from the airbag 805 penetrates the inner cavity and extends into the annular groove, and a one-way valve is provided in the nozzle 801 and the air inlet pipe 811, one end of the connecting shaft 704 extends to the bottom of the rotating disk 9 and is fixedly connected to the driving wheel 802, one end of the linkage shaft 809 extends to the outside of the inner cavity and is fixedly connected to the driven wheel 804, and a transmission belt 803 is connected between the driven wheel 804 and the driving wheel 802.

[0048] The specific implementation method is as follows: by setting an auxiliary component 8, when the cement raw material is ground, the grinding roller 703 will rotate under the action of friction, and the grinding roller 703 drives the cam 810 to rotate through the connecting shaft 704, the driving wheel 802, the transmission belt 803, the driven wheel 804, and the linkage shaft 809. The cam 810 cooperates with the telescopic rod 806 and the second spring 807 and the sliding plate 808 to reciprocate, so that the sliding plate 808 drives the airbag 805 to expand or contract periodically. The air inlet pipe 811, the one-way valve and the nozzle 801 can realize the one-way delivery of the airflow, so that the nozzle 801 can blow airflow into the annular groove and the grinding groove seat 701, and the airflow can drive the ground cement raw material to separate from the annular groove and the grinding groove seat 701, so as to avoid the powder adhering to the annular groove or the grinding groove seat 701 and affecting the grinding effect of the cement raw material.

[0049] Working principle: When in use, the staff starts the driving motor 10 and conveys the cement raw materials to the grinding box 2 through the feeding pipe 6. When the cement raw materials fall onto the uppermost rotating plate, the centrifugal force generated by the rotation of the rotating plate causes the cement raw materials to spread around and enter the grinding groove seat 701. The grinding roller 703 cooperates with the grinding groove seat 701 to grind the cement raw materials inside. The crushed cement raw materials are discharged from the gap below the grinding groove seat 701 and guided to the rotating plate of the next layer through the lower hopper 702, and the above process is repeated. In this process, the driving motor 10 rotates The shaft 11 drives the bottom rotating plate to rotate, the bottom rotating plate drives the second transmission shaft 707 to rotate, the second transmission shaft 707 drives the second gear 708 to rotate, the second gear 708 drives the speed change gear 709 to rotate, the speed change gear 709 drives the first gear 706 to rotate, and the first gear 706 drives the first transmission shaft 705 to rotate. In this process, the speed of the second transmission shaft 707 and the first transmission shaft 705 changes through the speed change gear 709, so that the speed of the first transmission shaft 705 is less than the speed of the second transmission shaft 707, so that the speed of the three rotating plates gradually increases from top to bottom.

[0050] After three times of processing, the cement raw materials are discharged from the bottom grinding groove seat 701 in powder form, and the powdered cement raw materials fall on the rotating table 507, slide down to the bottom along the inclined surface of the rotating table 507, and accumulate at the bottom. In this process, the rotating shaft 11 drives the rotating table 507 to rotate, and the rotating table 507 drives the partition 508 to rotate. The partition 508 drives the powder to periodically pass through the first through groove 504, and the rotating table 507 drives the mounting frame 512 to rotate, and the mounting frame 512 drives the sliding rod 514 to rotate, and the sliding rod 514 drives the extrusion wheel 513 to revolve around the fixed ring 509, so that the extrusion block 510 periodically fits with the extrusion wheel 513, and the extrusion block 510 drives the extrusion wheel 513 to move, and when the extrusion block 510 is separated from the extrusion wheel 513, the extrusion wheel 513 performs a reset motion driven by the first spring 515, so that the extrusion wheel 513 performs a reciprocating motion, and the extrusion wheel 513 drives The sliding rod 514 makes reciprocating motion, and the sliding rod 514 drives the vibration block 511 to reciprocate and vibrate the rotating table 507, so as to assist the powdered cement raw materials to slide down and prevent the cement raw materials from adhering to the rotating table 507. At the same time, the air intake pump 503 is started, and the air intake pump 503 conveys the high-speed airflow to the connecting pipe 501. Under the Nubler effect, the powder gathered at the bottom of the rotating table 507 enters the connecting pipe 501 through the first through groove 504 and is conveyed to the second through groove 505 with the high-speed airflow, and enters the top of the grinding box 2 with the second through groove 505. At this time, the discharge conveying pipe 1, under the action of external equipment, draws air from the grinding box 2, so that the powder moves toward the discharge conveying pipe 1. At this time, the filter element 506 will filter and block the large particles of cement raw materials in the powder, so that the qualified powder can be conveyed out through the discharge conveying pipe 1. The blocked large particles of cement raw materials will fall back onto the rotating plate on the top layer and continue to be ground repeatedly.

[0051] When grinding the cement raw material, the grinding roller 703 rotates under the action of friction, and the grinding roller 703 drives the connecting shaft 704 to rotate, and the connecting shaft 704 drives the driving wheel 802 to rotate, and the driving wheel 802 drives the driven wheel 804 to rotate through the transmission belt 803, and the driven wheel 804 drives the linkage shaft 809 to rotate, and the linkage shaft 809 drives the cam 810 to rotate, and the cam 810 drives the sliding plate 808 to move, and when the side with a smaller diameter of the cam 810 contacts the sliding plate 808, the sliding plate 808 performs a reset motion driven by the telescopic rod 806 and the second spring 807, so that the sliding plate 808 performs a reciprocating motion, and the sliding plate 808 drives the airbag 805 to expand or contract periodically. The air inlet pipe 811, the one-way valve and the nozzle 801 can realize the one-way delivery of the airflow, so that the nozzle 801 can blow the airflow into the annular groove and the grinding groove seat 701 to assist in the discharge of the ground powder.

[0052] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A roller grinding device for cement manufacturing, comprising a grinding box (2), characterized in that: A plurality of rotating disks (9) are arranged in sequence from top to bottom in the grinding box (2); a variable speed grinding assembly (7) is arranged on the outer peripheral side of the rotating disk (9); an auxiliary assembly (8) is arranged inside the rotating disk (9); and a discharge sorting assembly (5) is arranged at the bottom of the grinding box (2); The variable speed grinding assembly (7) comprises a plurality of grinding rollers (703), an annular groove is formed on the outer circumference of the rotating disk (9), the grinding rollers (703) are rotatably connected to the annular groove via a connecting shaft (704), a plurality of grinding groove seats (701) are fixedly connected to the inner wall of the grinding box (2) in sequence from top to bottom, a first transmission shaft (705) and a second transmission shaft (707) are respectively arranged between two rotating disks (9) facing each other, and one end of the first transmission shaft (705) is rotatably connected to one end of the second transmission shaft (707), and the first transmission shaft (705) is fixedly connected to one of the rotating disks (9). The first transmission shaft (705) is fixedly connected to the top of another rotating disk (9); the first transmission shaft (705) is fixedly connected to the outer surface of the first transmission shaft (706); the second transmission shaft (707) is fixedly connected to the outer surface of the second transmission shaft (708); the first gear (706) and the second gear (708) are both meshed with the same speed change gear (709) on one side; the multiple speed change gears (709) have different transmission ratios, so that the rotation speeds of the second transmission shaft (707) and the first transmission shaft (705) are different, so that the rotation speeds of the three rotating disks (9) gradually increase from top to bottom; The auxiliary component (8) comprises a plurality of airbags (805), a plurality of inner cavities are formed at the bottom of the rotating disk (9), the airbags (805) are fixedly connected to one side of the inner wall of the inner cavity, a sliding plate (808) is fixedly connected to the side of the airbag (805) away from the inner wall of the inner cavity, a cam (810) is affixed to the side of the sliding plate (808) away from the airbag (805), both sides of the cam (810) are fixedly connected to linkage shafts (809), both ends of the linkage shafts (809) are rotatably connected to the inner wall of the inner cavity via bearings, two telescopic rods (806) are fixedly connected to the side of the sliding plate (808) away from the cam (810), the other end of the telescopic rod (806) is fixedly connected to one side of the inner wall of the inner cavity, a second spring (807) is sleeved on the outer surface of the telescopic rod (806), and the second spring (807) ) are respectively fixedly connected to one side of the sliding plate (808) and one side of the inner wall of the inner cavity; two air inlet pipes (811) are fixedly connected to the bottom of the airbag (805); one end of the air inlet pipe (811) away from the airbag (805) extends to the outside of the inner cavity; one side of the airbag (805) is fixedly connected to a nozzle (801); one end of the nozzle (801) away from the airbag (805) passes through the inner cavity and extends into the annular groove; both the nozzle (801) and the air inlet pipe (811) are provided with a one-way valve; one end of the connecting shaft (704) extends to the bottom of the rotating disk (9) and is fixedly connected to a driving wheel (802); one end of the linkage shaft (809) extends to the outside of the inner cavity and is fixedly connected to a driven wheel (804); a transmission belt (803) is connected between the driven wheel (804) and the driving wheel (802).

2. A roller grinding equipment for cement manufacturing according to claim 1, characterized in that: The bottom of the speed change gear (709) is rotatably connected to a mounting rod (710) via a rotating shaft and a bearing, one side of the mounting rod (710) is fixedly connected to a lower hopper (702), and the top of the lower hopper (702) is fixedly connected to the bottom of the grinding tank seat (701).

3. A roller grinding equipment for cement manufacturing according to claim 2, characterized in that: The cross-sectional shape of the inner wall of the grinding groove seat (701) is V-shaped, and the grinding roller (703) is relatively slidably connected to the grinding groove seat (701).

4. A roller grinding equipment for cement manufacturing according to claim 3, characterized in that: The discharging and sorting component (5) comprises a rotating table (507), the bottom of the inner wall of the grinding box (2) is rotatably connected to a rotating shaft (11) via a bearing, the top of the rotating shaft (11) is fixedly connected to the bottom of the rotating disk (9) located at the bottom, the outer surface of the rotating shaft (11) is fixedly connected to the rotating table (507), the bottom of the rotating table (507) is provided with a plurality of partitions (508) distributed in an equiangular circular array, and both sides of the grinding box (2) are fixedly connected to connecting pipes (508). 1), a second through groove (505) and a first through groove (504) are respectively provided at a connection point between the connecting pipe (501) and the grinding box (2) from top to bottom, a filter element (506) is fixedly connected to the top of the inner wall of the grinding box (2), the second through groove (505) is located between the filter element (506) and the topmost rotating disk (9), the bottom of the connecting pipe (501) is connected to an air supply pipe (502), and the other end of the air supply pipe (502) is fixedly connected to an air intake pump (503).

5. A roller grinding equipment for cement manufacturing according to claim 4, characterized in that: A plurality of mounting frames (512) are fixedly connected to the inner circumference of the rotating table (507); a sliding hole is provided on one side of the mounting frame (512); a sliding rod (514) is slidably connected in the sliding hole; a vibration block (511) is fixedly connected to one side of the sliding rod (514); the vibration block (511) is in contact with the inner circumference of the rotating table (507) during movement; an end of the sliding rod (514) away from the vibration block (511) is fixedly connected to an extrusion wheel (513); a first spring (515) is sleeved on the outer surface of the sliding rod (514); and two ends of the first spring (515) are respectively fixedly connected to one side of the mounting frame (512) and one side of the extrusion wheel (513).

6. A roller grinding equipment for cement manufacturing according to claim 5, characterized in that: A fixing ring (509) is fixedly connected to the bottom of the inner wall of the grinding box (2), and a plurality of extrusion blocks (510) are fixedly connected to the outer peripheral side of the fixing ring (509), wherein the cross-sectional shape of the extrusion blocks (510) is a trapezoid, and the plurality of extrusion blocks (510) are distributed in an equiangular circular array along the axis of the fixing ring (509), and the extrusion blocks (510) are periodically fitted with the extrusion wheels (513).

7. A roller grinding equipment for cement manufacturing according to claim 6, characterized in that: Support blocks (4) are fixedly connected to both sides of the bottom of the grinding box (2), and the bottoms of the two support blocks (4) are fixedly connected to the same base (3); a driving motor (10) is fixedly mounted at the center position of the top of the base (3) via a mounting plate; one end of the rotating shaft (11) extends to the outside of the grinding box (2) and is fixedly connected to one end of the output shaft of the driving motor (10); the bottom of the air intake pump (503) is fixedly connected to the top of the base (3); a discharge conveying pipe (1) is fixedly connected to the top of the grinding box (2); one end of the discharge conveying pipe (1) extends to the inside of the grinding box (2), and the other end of the discharge conveying pipe (1) is connected to an external output device; a feed pipe (6) is fixedly connected to one side of the grinding box (2); one end of the feed pipe (6) extends to the inside of the grinding box (2), and the other end of the feed pipe (6) is connected to an external feeding device.

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