CN115254278B - Combined roller press for cement grinding station - Google Patents

Abstract

The invention relates to the technical field of cement grinding, and discloses a combined roller press for a cement grinding station, wherein a movable hopper is arranged above a machine body, a hydraulic cylinder and a hydraulic device are controlled simultaneously through a hydraulic system, when a movable roller is driven to move through hydraulic pressure, the gap between a fixed roller and the movable roller is increased, meanwhile, the hydraulic device drives a hydraulic rod to drive the hopper to move, the center of the bottom of the hopper is kept on the same vertical plane with the center between the pressing rollers after the movement is finished, a rotating wheel and a corrugated sleeve are arranged in the hopper, the rotating wheel is driven by a motor to rotate, so that the same level of materials are ensured to be as much when the materials fall between the pair rollers to roll, resistance sliding sheets are arranged in the fixed roller and the movable roller and are matched with resistance strips, and the rotation condition of the pressing rollers is reflected by utilizing the resistance sliding sheet to adjust the rotation condition of the pressing rollers and the rotation speed of the rotating wheel to adjust the scraping knife.

Description

Combined roller press for cement grinding station

Technical Field

The invention relates to the technical field of cement grinding, in particular to a combined roller press of cement grinding stations.

Background

The cement grinding is the final procedure of cement manufacture, the grinding equipment adopted in the cement grinding station is a roller press which is designed according to the grinding principle of a material bed, the roller press consists of two extrusion rollers which rotate oppositely and synchronously, one extrusion roller is a fixed roller, the other extrusion roller is a movable roller, materials are fed from the upper parts of the two rollers and are continuously taken into the space between the rollers by the extrusion rollers, and after the extrusion rollers are subjected to the high pressure action of 100-150MPa, the materials become compact cakes to be discharged from the lower part of the machine, and although the prior roller press has been applied to various types, the prior roller press has certain defects:

when the roller press is used, according to different grinding concrete conditions, the movable roller is required to be adjusted, but the whole structure of the conventional roller press is fixed, the movable roller is driven to move by an internal hydraulic system to adjust the gap between the movable roller and the fixed roller, but the conventional adjustment is limited to the movable roller, so that the center position of the gap between the fixed roller and the movable roller after adjustment is not corresponding to the center of a blanking hopper, cement materials are not positioned between the fixed roller and the movable roller when blanking is carried out, left-right deviation is easily caused on the material accumulation condition between the two rollers, uneven rolling is caused, and the quality of a pressed cake is poor;

meanwhile, when rolling, the materials in the hopper are piled, so that the materials fall between the two press rolls from the bottom material port to roll, but the materials in the existing hopper are concentrated in the middle for blanking, so that the materials fall between the press rolls and are mainly concentrated in the middle position, and the middle position is mainly used when rolling, so that the service life of the press rolls is uneven, the middle part is easily damaged quickly due to overlarge loss, the whole service life of the press rolls is reduced, and the production is not facilitated;

moreover, when rolling, certain loss and adhesion to a cake can occur on the surface of the press roller, so that the subsequent rolling effect of the press roller is poor, if the friction loss of the scraper to the press roller is always large, the scraping effect of the scraper can be reduced quickly, and if too much cake adhered to the surface of the press roller can cause subsequent falling materials to be accumulated, so that the collection of the cake is easily influenced by slipping from two sides to a discharge hole.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides a cement grinding station combined roller press which has the advantages of uniform rolling and good quality and solves the problems of the background technology.

The invention provides the following technical scheme: the utility model provides a cement grinding station unites roll squeezer, includes organism and hopper, and the hopper is located the organism top, the feed inlet has been seted up at the top of organism, the bottom of hopper stretches into in the feed inlet, the discharge gate has been seted up to the bottom of organism, the inside left end fixed mounting of organism has the fixed roller, the inside right side movable mounting that is located the fixed roller of organism has the movable roller, the inside right-hand member lateral wall fixed mounting of organism has the pneumatic cylinder, the output and the right side fixed connection of movable roller of pneumatic cylinder, organism back-mounted has the first motor of drive fixed roller and movable roller, organism right side inner wall fixed mounting has the control box, organism left side inner wall and scraper right side wall symmetry install the scraper, organism right-hand member top fixed mounting has hydraulic means, hydraulic means's left side movable sleeve has the hydraulic rod, hydraulic rod and the right side fixed connection of hopper, the organism top surface is located the front of hopper and the back symmetry fixed mounting of back has spacing.

Preferably, the blanking groove is arranged at the bottom of the hopper, the rotating wheel is movably arranged at the top of the blanking groove in the hopper, the second motor with the output end fixedly connected with the rotating wheel is fixedly arranged at the back of the hopper, two fixing rods are fixedly arranged in the middle of the inner cavity of the hopper, the corrugated sleeve is sleeved outside the fixing rods, the air cavity is arranged in the inner wall of the back of the hopper, the sliding block is movably sleeved at the bottom of the air cavity, the sleeve is fixedly arranged at the top of the sliding block, the sleeve rod is fixedly arranged at the top wall of the air cavity, and the top of the sleeve rod is movably sleeved inside the sleeve rod.

Preferably, a cam is fixedly arranged on the outer ring of the output shaft of the second motor, the cam is positioned under the sliding block, and the loop bar is sleeved with the sleeve in a sliding sealing manner by a piston.

Preferably, a group of sliding grooves are formed in the middle of the fixed roller and the middle of the movable roller, a resistance sliding sheet is sleeved in the sliding grooves in a sliding manner, one end, close to the axis of the movable roller, of the resistance sliding sheet is fixedly connected with a reset spring with the inner wall of the sliding groove, and a resistance strip is arranged on the inner wall of the sliding groove and is in sliding fit with the resistance sliding sheet.

Preferably, the hydraulic rod and the hydraulic cylinder are driven by the hydraulic system at the same time, and the moving distance of the hydraulic rod is smaller than the moving distance of the hydraulic cylinder.

Preferably, the blanking groove is formed in a bending shape, grooves are uniformly formed in the outer surface of the rotating wheel, and the opening size of the grooves is larger than the opening of the top of the blanking groove.

The invention has the following beneficial effects:

1. through setting up movable's hopper and being located the top of organism, control pneumatic cylinder and hydraulic means simultaneously through hydraulic system, compared in prior art, can lead to the clearance grow of fixed roller and movable roller when moving through hydraulic drive movable roller, simultaneously hydraulic means drive hydraulic stem drives the hopper and removes, guarantee the center of hopper bottom after moving, still keep with the clearance center between fixed roller and the movable roller on vertical plane simultaneously, thereby make the cement material that the hopper falls can be abundant by the roll-in, the cake quality that the roll-in was got out after having also guaranteed to adjust is unanimous before with, simultaneously can also avoid the landing that the material caused because of piling up the side deviation, thereby the conveyer belt that influences the bottom collects the cake.

2. Through being provided with runner and ripple cover inside the hopper to through the rotation of second motor drive runner, compared with prior art, utilize the rotation of runner to realize the unloading, the recess of its surface can fully fill, the material that is in same level when having guaranteed to be in the unloading is as much, more even when falling between fixed roller and the movable roller like this, make the material that passes through between fixed roller and the movable roller clearance evenly roll-in, guaranteed that the roller can be even receive the extrusion force effect, avoided the middle part to lose the too fast condition, improved life.

3. Through all being provided with resistance gleitbretter and cooperation at fixed roller and movable roller inside have the resistance strip, compare in prior art, drive resistance gleitbretter when utilizing fixed roller and movable roller to rotate and do centrifugal motion, resistance gleitbretter can slide the rotation condition that adjusts the resistance and reflect the compression roller to can lead to the roll-in volume to diminish according to the volume of compression roller surface adhesion cookie, thereby form at fixed roller and movable roller top and pile up too much material, thereby make the vibrations influence that resistance gleitbretter received diminish, adjust the scraper and clear up the compression roller surface in the feedback control system, thereby make the roll-in effect of fixed roller and movable roller resume, guarantee the effect and the quality of roll-in.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a top plan view of the overall structure of the present invention;

FIG. 3 is a longitudinal half-section view of the entire structure of the present invention;

FIG. 4 is a cross-sectional view of the entire structure of the present invention;

FIG. 5 is a schematic view of the hopper structure of the present invention;

FIG. 6 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 8 is a cross-sectional view taken along line C-C of FIG. 2;

fig. 9 is an enlarged view of fig. 3 at D.

In the figure: 1. a body; 101. a feed inlet; 102. a discharge port; 2. a hopper; 201. discharging groove; 202. an air cavity; 3. a fixed roller; 4. a movable roller; 401. a chute; 5. a hydraulic cylinder; 6. a first motor; 7. a control box; 8. a scraper; 9. a hydraulic device; 10. a hydraulic rod; 11. a limit bar; 12. a rotating wheel; 13. a fixed rod; 14. a corrugated sleeve; 15. a second motor; 16. a slide block; 17. a cam; 18. a loop bar; 19. a sleeve; 20. resistance sliding sheets; 21. and a return spring.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1-4 and 6-8, a combined roller press for cement grinding station comprises a machine body 1 and a hopper 2, wherein the hopper 2 is positioned above the machine body 1, a feed inlet 101 is formed in the top of the machine body 1, the bottom of the hopper 2 stretches into the feed inlet 101, the length of the feed inlet 101 is the same as the length of a fixed roller 3 and the length of a movable roller 4, cement materials falling from the hopper 2 can be fully acted between the fixed roller 3 and the movable roller 4, a discharge outlet 102 is formed in the bottom of the machine body 1, the fixed roller 3 is fixedly arranged at the left end of the interior of the machine body 1, the movable roller 4 is movably arranged at the right side of the interior of the machine body 1, a hydraulic cylinder 5 is fixedly arranged at the right side wall of the interior of the machine body 1, the output end of the hydraulic cylinder 5 is fixedly connected with the right side of the movable roller 4, the hydraulic cylinder 5 can drive the movable roller 4 to slide and adjust under the driving of a hydraulic system, thereby adjusting the gap between the fixed roller 3 and the movable roller 4, further achieving the rolling with different requirements, the back of the machine body 1 is provided with a first motor 6 for driving the fixed roller 3 and the movable roller 4, the right inner wall of the machine body 1 is fixedly provided with a control box 7, the left inner wall of the machine body 1 and the right side wall of the scraper 8 are symmetrically provided with the scraper 8, the top of the right end of the machine body 1 is fixedly provided with a hydraulic device 9, the left side of the hydraulic device 9 is movably sleeved with a hydraulic rod 10, the hydraulic rod 10 is fixedly connected with the right side of the hopper 2, the top surface of the machine body 1 is symmetrically and fixedly provided with limit strips 11 on the front and the back of the hopper 2, the hydraulic rod 10 and the hydraulic cylinder 5 are simultaneously driven by a hydraulic system, the moving distance of the hydraulic rod 10 is smaller than the moving distance of the hydraulic cylinder 5, when the hydraulic system drives the hydraulic cylinder 5 to drive the movable roller 4 to move and adjust, the hydraulic device 9 drives the hydraulic rod 10 to drive the hopper 2 to move simultaneously, and ensures that after the hydraulic cylinder 5 is moved, the hydraulic rod 10 just drives the hopper 2 to move to the center of the bottom and the center of the gap between the fixed roller 3 and the movable roller 4 to be in the same vertical plane, so that the following blanking of the center of the bottom of the hopper 2 is ensured to just fall at the middle of the fixed roller 3 and the movable roller 4, and the rolling uniformity is ensured.

Example two

Referring to fig. 2-8, a blanking groove 201 is provided at the bottom of a hopper 2, a runner 12 is movably mounted at the top of the blanking groove 201 inside the hopper 2, a second motor 15 with an output end fixedly connected with the runner 12 is fixedly mounted at the back of the hopper 2, two fixing rods 13 are fixedly mounted at the middle part of an inner cavity of the hopper 2, a corrugated sleeve 14 is sleeved outside the fixing rods 13, an air cavity 202 is provided in the inner wall of the back of the hopper 2, a sliding block 16 is movably sleeved at the bottom of the air cavity 202, a sleeve 19 is fixedly mounted at the top of the sliding block 16, a sleeve rod 18 is fixedly mounted at the top wall of the air cavity 202, the top of the sleeve 19 is movably sleeved inside the sleeve rod 18, a cam 17 is fixedly mounted at the outer ring of an output shaft of the second motor 15, the cam 17 is positioned under the sliding block 16, the sleeve rod 18 and the sleeve 19 are in sliding sealing sleeve joint by a piston, the runner 12 is driven to rotate by the second motor 15 to realize blanking, simultaneously, the cam 17 is driven to rotate, the cam 17 is in a cam shape, the sliding block 16 is intermittently pushed upwards, so that the gas in the gas cavity 202 is pressed into the corrugated sleeve 14, the corrugated sleeve 14 is intermittently expanded and contracted, the material in the hopper 2 is stamped and loosened, the condition of blockage during blanking is avoided, meanwhile, the movable sealing sleeve joint between the sleeve rod 18 and the sleeve 19 can ensure that the gas in the sleeve 19 is compressed when the sliding block 16 moves upwards, the sliding block 16 can be reset under the condition of downward movement under the gas pressure in the sleeve 19 after the pressing of the cam 17 is lost, the blanking groove 201 is formed in a bending shape, the outer surface of the rotating wheel 12 is uniformly provided with grooves, the opening size of the grooves is larger than the opening of the top of the blanking groove 201, so that cement materials in the inner cavity of the hopper 2 can be continuously supplemented into the grooves when the rotating wheel 12 rotates, then the groove filled with the materials is rotated to the lower position along with the rotation of the rotating wheel 12, namely falls into the feeding hole 101, and as the top opening of the feeding hole 101 is smaller than the groove, the cement materials fall into the feeding hole 101 and can be blocked by the bent inner wall of the feeding hole to be collected to the middle position of the bottom of the hopper 2, and then fall between the fixed roller 3 and the movable roller 4, so that the uniformity of subsequent rolling can be ensured, and the quality of a cake is ensured.

Example III

Referring to fig. 3, fig. 6, and fig. 9, a set of sliding grooves 401 are respectively formed in the middle parts of the fixed roller 3 and the movable roller 4, the inner part of the sliding groove 401 is slidably sleeved with a resistance sliding sheet 20, one end of the resistance sliding sheet 20 close to the axis of the movable roller 4 is fixedly connected with a reset spring 21 on the inner wall of the sliding groove 401, a resistance strip is arranged on the inner wall of the sliding groove 401 and is slidably attached to the resistance sliding sheet 20, and the resistance sliding sheet 20 is electrically contacted with the resistance strip, so that when the fixed roller 3 and the movable roller 4 rotate, the resistance sliding sheet 20 in the sliding groove 401 is subject to centrifugal force to be thrown outwards, and slides outwards along the sliding groove 401, so that resistance in a circuit is changed, and the resistance change is unstable due to vibration of the fixed roller 3 and the movable roller 4, and the rolling conditions of the fixed roller 3 and the movable roller 4 are detected due to resistance change brought by the two resistances 20 when the sliding sheet 20 rotates to the gravity action of the resistance sliding sheet 20 to be in a horizontal position. When more cakes are adhered to the surface of the press roller, more cement materials are accumulated at the tops of the fixed roller 3 and the movable roller 4 due to the fact that the subsequent rolling amount is reduced, at the moment, the gravity applied to the fixed roller 3 and the movable roller 4 is increased, so that the stability in rotation is higher, the resistance sliding sheet 20 is more stable, the resistance sliding sheet is different from the previous resistance change condition, the resistance sliding sheet is fed back to a control system, the surfaces of the fixed roller 3 and the movable roller 4 are cleaned by adjusting the scrapers 8 on the two sides to properly adjust the rotating speed of the rotating wheel 12, the blanking speed is reduced, and the rotating speed of the rotating wheel 12 is restored when the previous rolling condition is restored.

The working principle is that cement materials are added into a hopper 2, then starting equipment starts to work, a second motor 15 drives a rotating wheel 12 to rotate, a groove of the rotating wheel 12 supplements the cement materials into the hopper and then rotates, the cement materials fall into a blanking groove 201 when rotating to the lower part, then fall into a feeding hole 101 from the bottom, a cam 17 is driven to continuously rotate in the process of driving the rotating wheel 12 by the second motor 15, the rotation of the cam 17 upwards presses a sliding block 16, the sliding block 16 upwards moves to drive a sleeve rod 18 to shrink and compress gas towards the inside of a sleeve 19, the gas in an air cavity 202 is extruded into a corrugated sleeve 14 to expand the corrugated sleeve, the cement materials in the hopper 2 are tamped, the sliding block 16 is driven to reset under the action of air pressure in the sleeve 19 along with the rotation of the cam 17, the intermittent expansion corrugated sleeve 14 is formed to avoid the condition that blanking blockage occurs in the hopper 2, at the moment, the first motor 6 drives a fixed roller 3 and a movable roller 4 to synchronously rotate towards the middle, the cement materials falling into the space between the fixed roller 3 and the movable roller 4 through the feeding hole 101 are rolled to form a blanking belt 102, and then the cement materials fall from the bottom to the bottom of the hopper 102;

meanwhile, the fixed roller 3 and the movable roller 4 can drive the resistor slide 20 in the chute 401 to swing centrifugally and outwards in the rotating process, so that the resistor slide 20 slides along the chute 401 and causes the resistance of a resistor strip to change, and each circle of rotation of the fixed roller 3 and the movable roller 4 just drives the resistor to form a change period, and then the vibration influence of the fixed roller 3 and the movable roller 4 under a certain rotating speed is combined, the resistor is directly fed back into a control system, when more cakes are adhered to the surfaces of the press roller, more cement materials are accumulated at the tops of the fixed roller 3 and the movable roller 4 due to the subsequent reduction of rolling amount, at the moment, the gravity of the tops of the fixed roller 3 and the movable roller 4 becomes larger, the influence of vibration becomes higher during rotation, so that the stability of the resistor slide 20 becomes more stable, the difference from the previous resistance change situation is caused, the resistor slide is fed back into the control system, the surfaces of the fixed roller 3 and the movable roller 4 are cleaned by adjusting the scraper 8 on two sides, the rotating speed of the rotating wheel 12 is properly adjusted, the blanking speed is reduced, and the rolling efficiency of the material accumulated at the tops of the fixed roller 3 and the movable roller 4 reaches the standard rolling speed when the rolling speed of the material reaches the rolling speed of the rotating wheel 20, and the resistor is recovered after the rolling efficiency is guaranteed;

when the position of the movable roller 4 needs to be regulated, the hydraulic cylinder 5 is controlled by the hydraulic system to drive the movable roller 4 to be far away from the fixed roller 3, so that the gap between the movable roller 4 and the fixed roller 3 is enlarged, meanwhile, the hydraulic device 9 also drives the hydraulic rod 10 to drive the hopper 2 to move, the middle part of the blanking groove 201 at the bottom of the hopper 2 always corresponds to the center of the gap between the fixed roller 3 and the movable roller 4, the rolling quality is improved, and meanwhile, the phenomenon that the accumulation position of materials at the tops of the fixed roller 3 and the movable roller 4 flows to two sides to influence the collection and blanking of a conveying belt is avoided.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. The utility model provides a combination roll squeezer of cement grinding station, includes organism (1) and hopper (2), and hopper (2) are located organism (1) top, its characterized in that: the utility model discloses a hopper, including machine body (1), hopper (2), fixed roller (3) are installed to the left end fixed mounting in inside of machine body (1), movable roller (4) are installed on the right side movable mounting in inside of machine body (1) that is located fixed roller (3), the inside right-hand member lateral wall fixed mounting of machine body (1) has pneumatic cylinder (5), the output of pneumatic cylinder (5) and the right side fixed connection of movable roller (4), first motor (6) of drive fixed roller (3) and movable roller (4) are installed to machine body (1) back, machine body (1) right side inner wall fixed mounting has control box (7), machine body (1) left side inner wall and scraper (8) right side lateral wall symmetry install scraper (8), left side movable mounting in inside of machine body (1) has pneumatic cylinder (5), pneumatic cylinder (10) are cup jointed on the left side movable mounting in pneumatic cylinder (9), pneumatic cylinder (10) are located positive top surface (2) and fixed connection of hopper (2) and fixed top surface (11), the hydraulic rod (10) and the hydraulic cylinder (5) are driven by the hydraulic system at the same time, the moving distance of the hydraulic rod (10) is smaller than the moving distance of the hydraulic cylinder (5), when the hydraulic system drives the hydraulic cylinder (5) to drive the movable roller (4) to move and adjust, the hydraulic device (9) drives the hydraulic rod (10) to drive the hopper (2) to move at the same time, and the hydraulic rod (10) just drives the hopper (2) to move to the center of the bottom and the center of the gap between the fixed roller (3) and the movable roller (4) to be in the same vertical plane after the hydraulic cylinder (5) is moved.

2. A cement grinding station combination roller press as claimed in claim 1, wherein: the utility model discloses a hopper, including hopper (2), silo (201) has been seted up to the bottom of hopper (2), hopper (2) inside is located silo (201) top position movable mounting has runner (12), the back fixed mounting of hopper (2) has output and runner (12) fixed connection's second motor (15), hopper (2) inner chamber middle part fixed mounting has two dead levers (13), the outside cover of dead lever (13) has ripple cover (14), air cavity (202) have been seted up in the inner wall at hopper (2) back, slider (16) have been cup jointed in the bottom activity of air cavity (202), sleeve (19) have in the top fixed mounting of slider (16), the roof fixed mounting of air cavity (202) has loop bar (18), the top activity of sleeve (19) cup joints inside loop bar (18).

3. A cement grinding station combination roller press as claimed in claim 2, wherein: the outer ring of the output shaft of the second motor (15) is fixedly provided with a cam (17), the cam (17) is positioned under the sliding block (16), and the sleeve rod (18) is sleeved with the sleeve (19) in a sliding sealing manner by a piston.

4. A cement grinding station combination roller press as claimed in claim 1, wherein: a group of sliding grooves (401) are formed in the middle of each of the fixed roller (3) and the movable roller (4), a resistance sliding sheet (20) is sleeved in the sliding groove (401) in a sliding mode, one end, close to the axis of the movable roller (4), of the resistance sliding sheet (20) is fixedly connected with a reset spring (21) on the inner wall of the sliding groove (401), and a resistance strip is arranged on the inner wall of the sliding groove (401) and is in sliding fit with the resistance sliding sheet (20).

5. A cement grinding station combination roller press as claimed in claim 2, wherein: the blanking groove (201) is formed in a bending mode, grooves are uniformly formed in the outer surface of the rotating wheel (12), and the opening size of the grooves is larger than that of the top of the blanking groove (201).