Cement grinding equipment with ultrafine powder separator

Abstract

The application discloses a cement grinding equipment with superfine powder separator, and particularly relates to the field of cement grinding, which comprises a shell, the inside of the shell is provided with a first grinding plate and a second grinding plate, the top of the first grinding plate is provided with a grinding pressure plate, the upper end of the grinding pressure plate is fixedly provided with a connecting rod, the upper end of the connecting rod is fixedly connected with an extension rod, the end of the extension rod away from the connecting rod is fixedly arranged at the output end of a hydraulic telescopic cylinder, the two ends of the first grinding plate and the second grinding plate are both provided with a swing mechanism, and the outer end of the material box is provided with a superfine powder separation mechanism. When the hydraulic telescopic cylinder drives the lifting plate to lift, the double grinding of the material can be realized, the reciprocating swing of the first grinding plate and the second grinding plate can be realized during the grinding process, and the grinding effect of the cement material can be improved; the separated superfine powder can be separated from the ground material, and the superfine powder can be prevented from scattering into the air to harm human health.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of cement grinding and specifically relates to a cement grinding device with an ultrafine powder separator. BACKGROUND

[0002] Cement is a kind of powdery inorganic hydraulic cementitious material, which can be mixed into a slurry after water is added, can be hardened in the air or in water, and can firmly cement sand, stone and other materials together. The mixture of lime and volcanic ash in the early days is very similar to modern lime-volcanic ash cement. The concrete made by cementing broken stones with it has high strength after hardening and can resist the corrosion of fresh water or salt water. For a long time, it has been widely used as an important cementitious material in civil construction, water conservancy, national defense and other engineering. In the production process of cement, the raw materials need to be ground.

[0003] Most of the existing cement grinding devices only perform one-time grinding and crushing treatment. For example, a high-efficiency cement grinding device disclosed in Chinese patent application No. 202210555079.9 utilizes a screening assembly to screen the ground cement during use, prevent unground particles from falling off, make the cement treatment more uniform, and thus improve the processing efficiency of the device. However, the device has high power consumption, and the one-time grinding has poor grinding effect. During the grinding process, a large amount of ultrafine powder is generated, which is easily scattered into the air when discharged together with the ground cement particles, and is also easily scattered during use, which is harmful to the health of workers. SUMMARY

[0004] The purpose of the present application is to provide a cement grinding device with an ultrafine powder separator to solve the problems in the background art.

[0005] In order to solve the above technical problems, the present application provides the following technical scheme: a cement grinding device with an ultrafine powder separator, comprising a shell, a first grinding plate and a second grinding plate are arranged inside the shell, a grinding pressure plate is arranged above the first grinding plate, a connecting rod is fixedly arranged at the upper end of the grinding pressure plate, a telescopic rod is fixedly connected to the upper end of the connecting rod, the output end of a hydraulic telescopic cylinder is fixedly arranged at one end of the telescopic rod away from the connecting rod, swing mechanisms are arranged at both ends of the first grinding plate and the second grinding plate, a material box is arranged below the second grinding plate in the shell, and an ultrafine powder separation mechanism is arranged at the outer end of the material box.

[0006] In a preferred implementation form, a limiting cylinder is arranged in the middle of the top end of the shell, an annular gear is fixedly arranged on the outer sidewall of the limiting cylinder, the telescopic rod is arranged through the limiting cylinder, limiting lugs are fixedly arranged on the two end sidewalls of the telescopic rod, a straight sliding slot is arranged on the inner sidewall of the limiting cylinder for the limiting lugs to slide, a reduction box is arranged on one side of the limiting cylinder, a drive wheel is fixedly arranged on the output shaft of the reduction box and is in meshing connection with the annular gear on the outer sidewall of the limiting cylinder, a first gear is fixedly connected to the input end of the reduction box, a first toothed plate is arranged on one side of the first gear, a lifting plate bottom end is fixedly arranged on the upper end of the first toothed plate, and the lifting plate is fixedly arranged on the telescopic rod. When the hydraulic telescopic cylinder drives the telescopic rod to descend, the telescopic rod can move along the straight sliding slot in the inner sidewall of the limiting cylinder, and the limiting cylinder can be self-rotated under the driving of the drive wheel, so that the telescopic rod is lifted and rotated at the same time, and the material on the first grinding plate can be extruded and rotated and ground at the same time.

[0007] In a preferred implementation form, the upper end of the hydraulic telescopic cylinder is rotatably arranged on the support frame, the support frame is fixedly arranged on the shell, the bottom end of the limiting cylinder is fixedly provided with a ball, and the top end sidewall of the shell is provided with a rolling groove matched with the ball. The support frame can support the hydraulic telescopic cylinder, so that the hydraulic telescopic cylinder rotates when working. The rolling groove is an annular groove, and the arrangement of the ball and the rolling groove facilitates the rotation of the limiting cylinder.

[0008] In a preferred implementation form, the bottom end of the grinding pressure plate is uniformly provided with grinding blocks, the upper surface of the first grinding plate is provided with a grinding groove, the bottom end of the first grinding plate is uniformly provided with first grinding protrusions, the upper surface of the second grinding plate is provided with second grinding protrusions, and cavities are formed in the interiors of the first grinding plate and the second grinding plate. Discharge ports are arranged at the upper and lower ends of the cavities, and screening nets are arranged at the discharge ports. The grinding blocks and the first grinding plate are used to preliminarily grind the material, and the first grinding plate and the second grinding plate are used to grind the material twice.

[0009] In a preferred implementation form, the swing mechanism comprises rotating shafts fixedly arranged at two ends of the first and second grinding plates, one end of the rotating shaft is arranged inside the side wall of the shell, and a second gear is fixedly connected to the rotating shaft, one side of the second gear is engaged with a second tooth plate, the upper end of the second tooth plate penetrates through the side wall of the top end of the shell, and is fixedly arranged at the bottom end of the lifting plate, a through hole is formed at the middle position of the rotating shaft, a connecting shaft is rotatably arranged at the through hole, a rotating rod is fixedly arranged at one end of the connecting shaft, a plurality of groups of knocking rods are uniformly arranged on the rotating rod, a third gear is fixedly arranged at one side of the connecting shaft, the third gear is engaged with the second tooth plate, the lifting plate can be lifted when the hydraulic telescopic cylinder drives the telescopic rod to lift, the second tooth plate can be lifted when the lifting plate lifts, the second tooth plate can drive the second gear to rotate, the second gear can drive the first and second grinding plates to rotate within a certain range, the third gear can drive the connecting shaft to rotate, the connecting shaft can drive the rotating rod and the knocking rods to rotate, and the knocking rods can knock and extrude the screening net to prevent the screening net from being blocked.

[0010] In a preferred implementation form, the two second tooth plates at the bottom end of the lifting plate are respectively located at the front and rear sides of the rotating shafts at two ends of the first and second grinding plates, the tooth bars on the two second tooth plates are arranged alternately, the rotating directions of the first and second grinding plates are opposite when the second tooth plates lift, the two second tooth plates are respectively located at two ends of the second gear, and the first and second grinding plates can realize forward and reverse rotation during the lifting of the lifting plate, so that the first and second grinding plates swing back and forth, thereby improving the grinding efficiency and the filtering and screening efficiency of the particles after grinding.

[0011] In a preferred implementation form, the upper ends of the first and second grinding plates are provided with limiting plates, and a guide plate is fixedly arranged inside the shell below the second grinding plate, and the bottom end of the guide plate is connected with the feeding port of the material box. The limiting plates can prevent the material from leaking from the first and second grinding plates, and the guide plate facilitates the ground material to enter the material box.

[0012] In a preferred implementation form, the superfine powder separating mechanism comprises a stirring shaft arranged inside the material box, both ends of the stirring shaft penetrating through the material box and arranged inside the side wall of the shell, both ends of the stirring shaft being fixedly provided with fourth gears, one side of one of the fourth gears being meshingly connected with the second toothed plate, one side of the other fourth gear being meshingly provided with a third toothed plate, the top end of the third toothed plate being fixedly connected with the lifting plate, the upper end of the material box being fixedly provided with a powder suction machine, the powder suction machine being connected with the collecting box at the outer end of the shell through a conveying pipeline, the stirring shaft being provided with spiral stirring blades at a position inside the material box, the ground material entering the material box, the superfine powder being sucked into the collecting box by the powder suction machine, and the material being stirred by the stirring shaft during collection, so that the superfine powder adhered to the stirring shaft can be separated, and the absorption of the powder suction machine is more convenient.

[0013] In a preferred implementation form, the second toothed plate and the third toothed plate meshingly connected with the fourth gears are located at the same side of the fourth gears, the bottom end of the material box is provided with a discharge port, the discharge port is provided with a baffle, the fourth gear can drive the movement of the stirring shaft inside the material box, and the material can be discharged through the discharge port after the superfine powder inside the material box is treated for a period of time.

[0014] In a preferred implementation form, the material box is fixedly arranged on the supporting plate, one side of the baffle is provided with a pull rope, one end of the pull rope penetrating through the side wall of the shell and being arranged at the bottom end of the lifting plate through a guide wheel, the baffle being slidingly arranged on the supporting plate, a discharge port matching the discharge port being formed in the baffle, and a return spring being fixedly arranged on one side of the baffle, the movement of the baffle being driven by the lifting of the lifting plate, the discharge port being blocked by the baffle, the control of the discharge port being facilitated, and the return of the baffle being facilitated by the arrangement of the return spring.

[0015] Compared with the prior art, the present application has the following beneficial effects:

[0016] 1. The cement material is treated by the grinding pressure plate, the first grinding plate and the second grinding plate, the grinding pressure plate and the first grinding plate can grind the material for the first time, the material ground for the first time can fall on the second grinding plate, the first grinding plate and the second grinding plate are swung to grind the material for the second time, the grinding effect of the material is effectively improved, the grinding pressure plate is arranged to move downward and rotate by the arrangement of the limiting cylinder, the driving wheel, the first toothed plate, the first gear and the speed reducer, the material on the upper end of the first grinding plate is extruded and rotated by the grinding pressure plate, then the material is extruded by the reciprocating swing of the first grinding plate and the second grinding plate, the material is ground for the second time by the first grinding plate and the second grinding plate swinging backward, the grinding efficiency of the material is improved, the screening of the material after grinding is facilitated, the material is double-ground by the hydraulic telescopic cylinder, and the screening of the material during grinding is facilitated.

[0017] 2、The first grinding plate and the second grinding plate are provided with a rotating rod, a knocking rod, a connecting shaft, a third gear and the like inside, the rotating rod drives the knocking rod to rotate during grinding, the knocking rod can continuously knock the screening net on the first grinding plate and the second grinding plate, the screening efficiency of the material can be improved, the plugging probability of the screening net can be reduced, and the grinding efficiency of the cement can be improved;

[0018] 3、The superfine powder separation mechanism is arranged, the ground material enters the material box, the superfine powder in the ground material can be sucked into the collecting box by the powder suction machine, the separation of the superfine powder and the cement material is realized, the superfine powder can be prevented from being scattered into the air to harm human health, and the rotation of the stirring shaft and the stirring blade can be driven by the lifting of the lifting plate during the superfine powder collecting process, the cement material can be separated from the superfine powder, and the superfine powder absorption effect is better; after the superfine powder grinding is completed, the rising of the lifting plate drives the baffle to move, and the discharge port discharges.

[0019] In summary, the hydraulic telescopic cylinder drives the lifting plate to lift, the double grinding of the material can be realized, the reciprocating swing of the first grinding plate and the second grinding plate can be realized during grinding, the grinding effect of the cement material can be improved, the screening of the ground material is facilitated, the rotation of the knocking rod can be realized by the operation of the hydraulic telescopic cylinder during grinding, the screening net can be continuously knocked, the material screening is improved, and the plugging of the screening net is prevented; the superfine powder separation of the ground material can be realized, and the superfine powder can be prevented from being scattered into the air to harm human health; the functions can be realized by the extension and retraction of one hydraulic telescopic cylinder, the use of the motor can be effectively reduced, and the use of the electric energy resource is reduced BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and are used to explain the application, and do not constitute a limitation on the application. In the drawings:

[0021] Figure 1 is a structure schematic view of the shell inside the application;

[0022] Figure 2 is an enlarged schematic view of the structure at A in the application Figure 1

[0023] Figure 3 is a structure schematic view of the limiting cylinder inside the application;

[0024] Figure 4 is a top view structure schematic view of the first grinding plate of the application;

[0025] Figure 5 ​is a schematic view of the cross-sectional structure of the first grinding plate of the present application;

[0026] Figure 6 is a schematic view of the cross-sectional structure of the first grinding plate of the present application; Figure 5

[0027] Figure 7 is a schematic view of the structure of the second toothed plate and the second, third and fourth gears of the present application;

[0028] Figure 8 is a schematic view of the cross-sectional structure of the first grinding plate of the present application; Figure 7

[0029] Figure 9 is a schematic view of the internal structure of the material box of the present application;

[0030] In the figure: 1, housing; 2, first grinding plate; 3, second grinding plate; 4, grinding pressure plate; 5, connecting rod; 6, telescopic rod; 7, hydraulic telescopic cylinder; 8, material box; 9, limiting cylinder; 10, ring gear; 11, limiting block; 12, straight-line sliding slot; 13, speed reducer; 14, drive wheel; 15, first gear; 16, first toothed plate; 17, lifting plate; 18, support frame; 19, ball; 20, rolling groove; 21, grinding block; 22, grinding groove; 23, first grinding protrusion; 24, second grinding protrusion; 25, cavity; 26, discharge port; 27, screening net; 28, rotating shaft; 29, second gear; 30, second toothed plate; 31, connecting shaft; 32, rotating rod; 33, knocking rod; 34, third gear; 35, limiting plate; 36, guide plate; 37, feed inlet; 38, stirring shaft; 39, fourth gear; 40, third toothed plate; 41, powder suction machine; 42, collection box; 43, helical stirring blade; 44, baffle; 45, pull rope; 46, guide wheel; 47, support plate; 48, return spring. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0032] Please refer to Figures 1-9 ​​The cement grinding equipment with superfine powder separator comprises a shell 1, a first grinding plate 2 and a second grinding plate 3 are arranged in the shell 1, a grinding pressure plate 4 is arranged above the first grinding plate 2, a connecting rod 5 is fixedly arranged at the upper end of the grinding pressure plate 4, an extension rod 6 is fixedly connected to the upper end of the connecting rod 5, the extension rod 6 is fixedly arranged at the output end of a hydraulic telescopic cylinder 7 at the end away from the connecting rod 5, swing mechanisms are arranged at the two ends of the first grinding plate 2 and the second grinding plate 3, a material box 8 is arranged below the second grinding plate 3 in the shell 1, and a superfine powder separation mechanism is arranged at the outer end of the material box 8.

[0033] In a preferred embodiment, a limiting cylinder 9 is rotatably arranged at the middle position of the top end of the shell 1, an annular gear 10 is fixedly arranged on the outer side wall of the limiting cylinder 9, the extension rod 6 is arranged through the limiting cylinder 9, limiting lugs 11 are fixedly arranged at the two end side walls of the extension rod 6, a straight sliding groove 12 for the sliding of the limiting lugs 11 is arranged on the inner side wall of the limiting cylinder 9, a speed reducer 13 is arranged on one side of the limiting cylinder 9, a driving wheel 14 is fixedly arranged at the output shaft of the speed reducer 13, the driving wheel 14 is meshingly connected with the annular gear 10 on the outer side wall of the limiting cylinder 9, a first gear 15 is fixedly connected to the input end of the speed reducer 13, a first toothed plate 16 is meshingly arranged on one side of the first gear 15, a lifting plate 17 is fixedly arranged at the bottom end of the first toothed plate 16, and the lifting plate 17 is fixedly arranged on the extension rod 6.

[0034] Specifically, refer to Figures 1-3 When the hydraulic telescopic cylinder 7 works and drives the grinding pressure plate 4 to lift, the lifting plate 17 can also be lifted, the first toothed plate 16 can be lifted, the first gear 15 can be rotated, the speed reducer 13 can be driven to operate, the driving wheel 14 can be rotated, the driving wheel 14 can drive the limiting cylinder 9 to rotate through the annular gear 10, the extension rod 6 can be rotated when the limiting cylinder 9 rotates, and the hydraulic telescopic cylinder 7 and the grinding pressure plate 4 can be rotated, so that the grinding pressure plate 4 can be lifted and rotated at the same time, and the grinding effect on the material is better.

[0035] In a preferred embodiment, the hydraulic telescopic cylinder 7 is rotatably arranged at the upper end of a supporting frame 18, the supporting frame 18 is fixedly arranged on the shell 1, the bottom end of the limiting cylinder 9 is fixedly arranged with a ball 19, and a rolling groove 20 matched with the ball 19 is arranged on the top end side wall of the shell 1, so that the rotation of the limiting cylinder 9 is facilitated and the rotation of the limiting cylinder 9 is more stable.

[0036] In a preferred embodiment, the grinding pressure plate 4 is provided with grinding blocks 21 at the bottom end at equal intervals, the first grinding plate 2 is provided with grinding grooves 22 on the upper surface, the first grinding plate 2 is provided with first grinding protrusions 23 at the bottom end at equal intervals, the second grinding plate 3 is provided with second grinding protrusions 24 on the upper surface, and the first grinding plate 2 and the second grinding plate 3 are both provided with cavities 25 inside, the upper and lower ends of the cavities 25 are both provided with discharge ports 26, and the discharge ports 26 are both provided with screening nets 27.

[0037] Specifically, refer to Figure 1 and Figures 4-6 The material is first ground by the grinding blocks 21 at the bottom end of the grinding pressure plate 4 and the grinding grooves 22 on the upper surface of the first grinding plate 2, and the material is secondly ground by the first grinding protrusions 23 at the bottom end of the first grinding plate 2 and the second grinding protrusions 24 at the upper end of the second grinding plate 3, and the ground material can enter the cavities 25 inside the first grinding plate 2 and the second grinding plate 3 through the discharge ports 26, and then fall into the lower layer of material through the lower discharge ports 26, and the screening nets 27 facilitate the screening of the material, and the discharge ports 26 can be in the shape of a long strip and be arranged between adjacent grinding grooves 22 and adjacent second grinding protrusions 24.

[0038] In a preferred embodiment, the swinging mechanism includes a rotating shaft 28 fixedly arranged at both ends of the first grinding plate 2 and the second grinding plate 3, one end of the rotating shaft 28 is arranged inside the side wall of the shell 1 and is fixedly connected with a second gear 29, one side of the second gear 29 is engaged with a second toothed plate 30, the upper end of the second toothed plate 30 penetrates through the top side wall of the shell 1 and is fixedly arranged at the bottom end of the lifting plate 17, a through hole is formed at the middle position of the rotating shaft 28, a connecting shaft 31 is rotatably arranged at the through hole, one end of the connecting shaft 31 is fixedly arranged with a rotating rod 32, a plurality of groups of knocking rods 33 are arranged at equal intervals on the rotating rod 32, a third gear 34 is fixedly arranged at one side of the connecting shaft 31, and the third gear 34 is engaged with the second toothed plate 30.

[0039] Specifically, refer to Figures 4-8 During the grinding process, the lifting plate 17 continuously rises and falls, the lifting plate 17 can drive the second toothed plate 30 to rise and fall when the lifting plate 17 rises and falls, the second toothed plate 30 can drive the second gear 29 to rotate when the second toothed plate 30 rises and falls, the second gear 29 can drive the rotating shaft 28 to rotate when the second gear 29 rotates, and the rotating shaft 28 can drive the first grinding plate 2 and the second grinding plate 3 to reciprocate, so that the first grinding plate 2 and the second grinding plate 3 continuously reciprocate, which can realize the reciprocating grinding of the first grinding plate 2 and the second grinding plate 3, and does not need to be provided with a grinding motor or other driving equipment, thereby reducing the power consumption.

[0040] In a preferred embodiment, the two second toothed plates 30 at the bottom end of the lifting plate 17 are respectively located on the front and back sides of the rotating shaft 28 at the two ends of the first grinding plate 2 and the second grinding plate 3, the gear racks on the two second toothed plates 30 are staggered, the rotating directions of the first grinding plate 2 and the second grinding plate 3 are opposite when the second toothed plates 30 are lifted, and the second toothed plates 30 at the bottom end of the lifting plate 17 are provided with two second toothed plates 30 respectively located on the front and back sides of the second gear 29, and the gear racks on the second toothed plates 30 are spaced apart, so that the first grinding plate 2 and the second grinding plate 3 can continuously reciprocate.

[0041] In a preferred embodiment, the upper ends of the first grinding plate 2 and the second grinding plate 3 are provided with limiting plates 35, and a guide plate 36 is fixedly arranged inside the shell 1 below the second grinding plate 3, and the bottom end of the guide plate 36 is connected with the feeding port 37 of the material box 8. The limiting plate 35 can prevent the material from sliding off the first grinding plate 2 and the second grinding plate 3, and the guide plate 36 can facilitate the collection of the material.

[0042] In a preferred embodiment, the superfine powder separation mechanism includes a stirring shaft 38 arranged inside the material box 8, both ends of the stirring shaft 38 penetrate through the material box 8 and are arranged inside the side wall of the shell 1, both ends of the stirring shaft 38 are fixedly provided with fourth gears 39, one side of one of the fourth gears 39 is engagedly connected with the second toothed plate 30, and one side of the other fourth gear 39 is engagedly provided with a third toothed plate 40, the top end of the third toothed plate 40 is fixedly connected with the lifting plate 17, the upper end of the material box 8 is fixedly provided with a powder suction machine 41, the powder suction machine 41 is connected with a collecting box 42 at the outer end of the shell 1 through a conveying pipeline, and helical stirring blades 43 are arranged on the stirring shaft 38 at a position inside the material box 8.

[0043] Specifically, reference can be made to Figure 1 and Figure 9 The powder suction machine 41 can absorb the superfine powder in the material box 8, the absorbed superfine powder can enter the collecting box 42 through the conveying pipeline, the collecting box 42 is used for collecting the superfine powder, the fourth gear 39 can drive the stirring shaft 38 to rotate during the absorption process of the powder suction machine 41, so that the stirring shaft 38 drives the helical stirring blades 43 to rotate, the stirring shaft 38 and the helical stirring blades 43 can make the material in the material box 8 tumble, so that the superfine powder on the material is separated from the material and is sucked into the collecting box 42 under the action of the powder suction machine 41, so that the absorption effect of the superfine powder is better, and the stirring shaft 38 and the helical stirring blades 43 are driven by the lifting of the lifting plate 17, without the need for additional power-driven equipment, so that the use is more simple and convenient.

[0044] In a preferred embodiment, the second tooth plate 30 and the third tooth plate 40 engaged by the fourth gear 39 are located on the same side of the fourth gear 39, and the bottom end of the material box 8 is provided with a discharge port, and the discharge port is provided with a baffle 44, and the baffle 44 can block the discharge port to prevent the superfine powder from flowing out when the absorption is not complete, and the absorption effect of the superfine powder is poor.

[0045] In a preferred embodiment, the material box 8 is fixedly arranged on the support plate 47, one side of the baffle 44 is provided with a pull rope 45, one end of the pull rope 45 penetrates through the side wall of the shell 1 and is arranged at the bottom end of the lifting plate 17 through the guide wheel 46, the baffle 44 is slidingly arranged on the support plate 47, a discharge port matched with the discharge port is formed in the baffle 44, and a reset spring 48 is fixedly arranged on one side of the baffle 44; in the normal grinding process, the hydraulic telescopic cylinder 7 drives the lifting plate 17 to move up and down by a certain distance, the pull rope 45 pulls the baffle 44 to move within a certain range, and the baffle 44 blocks the discharge port within the range; when it is needed to open the discharge port, the lifting plate 17 is driven by the hydraulic telescopic cylinder 7 to move upward by a longer distance, so that the pull rope 45 pulls the baffle 44 to move by a longer distance, so that the discharge port on the baffle 44 coincides with the discharge port, and the material in the material box 8 can be discharged through the discharge port

[0046] The working principle of the present application is that the cement to be treated is placed in the shell 1, so that the cement falls on the first grinding plate 2, then the hydraulic telescopic cylinder 7 is started to work, the hydraulic telescopic cylinder 7 drives the telescopic rod 6 to move downward after being started, the telescopic rod 6 moves downward to drive the connecting rod 5 and the lifting plate 17 to move downward, the connecting rod 5 drives the grinding pressure plate 4 to press downward, and the lifting plate 17 moves downward to drive the first tooth plate 16, the second tooth plate 30 and the third tooth plate 40 to move downward, the first tooth plate 16 moves downward to drive the first gear 15 to rotate, the first gear 15 drives the operation of the speed reducer 13, so that the speed reducer 13 drives the driving wheel 14 to rotate, since the driving wheel 14 is engaged with the ring gear 10 on the outer side wall of the limiting cylinder 9, the ring gear 10 can drive the limiting cylinder 9 to rotate, since the limiting cylinder 9 is connected through the limiting protrusion 11 and the straight line sliding slot 12, the rotation of the limiting cylinder 9 can drive the telescopic rod 6 to rotate, the telescopic rod 6 drives the hydraulic telescopic cylinder 7 and the connecting rod 5 to rotate, so that the grinding pressure plate 4 rotates while pressing downward, and the grinding block 21 at the bottom end of the grinding pressure plate 4 and the grinding groove 22 on the upper surface of the first grinding plate 2 are used to grind the cement material for the first time;

[0047] When the second toothed plate 30 descends, the second gear 29 can be driven to rotate. Since the two second toothed plates 30 are respectively located at the front and rear sides of the two second gears 29, and the gear racks on the two second toothed plates 30 are arranged at intervals, when the gear rack on the left end second toothed plate 30 is in contact with the left end second gear 29, the gear rack on the right end second toothed plate 30 is not in contact with the right end second gear 29, at this time, the left end second toothed plate 30 drives the left end second gear 29 to rotate, and the left end second gear 29 drives the first grinding plate 2 and the second grinding plate 3 to rotate in one direction through the rotating shaft 28. When the gear rack on the right end second toothed plate 30 is in contact with the right end second gear 29, the gear rack on the left end second toothed plate 30 is separated from the left end second gear 29, at this time, the right end second toothed plate 30 drives the right end second gear 29 to rotate in the opposite direction, and the second gear 29 drives the first grinding plate 2 and the second grinding plate 3 to rotate in the opposite direction through the rotating shaft 28, so that the first grinding plate 2 and the second grinding plate 3 continuously reciprocate. Since the reciprocating directions of the first grinding plate 2 and the second grinding plate 3 are opposite, the material between the first grinding plate 2 and the second grinding plate 3 can continuously contact the first grinding protrusion 23 and the second grinding protrusion 24. With the continuous increase of the material between the first grinding plate 2 and the second grinding plate 3, the extrusion effect of the first grinding protrusion 23 and the second grinding protrusion 24 on the material is better, so that the material is subjected to secondary grinding.

[0048] During the grinding process, the material on the first grinding plate 2 and the second grinding plate 3 can enter the cavity 25 through the discharge port 26. The screening net 27 can play a filtering and screening role. The material on the upper end of the first grinding plate 2 falls on the second grinding plate 3 through the discharge port 26, and the material on the second grinding plate 3 falls in the guide plate 46 and finally slides into the material box 8. When the second toothed plate 30 descends, the third gear 34 can be driven to rotate. When the third gear 34 rotates, the connecting shaft 31 can be driven to rotate, the rotating rod 32 and the knocking rod 33 are driven to rotate by the connecting shaft 31. The knocking rod 33 can continuously impact on the screening net 27, which can improve the screening efficiency of the screening net 27. Only the third gear 34 needs to be arranged at one end inside the shell 1, and continuous gear racks need to be arranged on the second toothed plate 30 on the side containing the third gear 34.

[0049] Two fourth gears 39 are engaged with one of the second toothed plate 30 and one third toothed plate 40 respectively, the second toothed plate 30 and the third toothed plate 40 engaged with the fourth gear 39 are in the same direction, the second toothed plate 30 and the third toothed plate 40 can drive the fourth gear 39 to rotate when moving downward, the fourth gear 39 can drive the stirring shaft 38 and the spiral stirring blade 43 to rotate when rotating, the material after secondary grinding enters the material box 8 through the feeding port 31, the powder suction machine 41 is opened, the powder suction machine 41 can suck the superfine powder in the material box 8 into the collection box 42 through the conveying pipeline, a filter bag can be arranged inside the collection box 42, the superfine powder is filtered, and clean gas is discharged; due to the stirring of the stirring shaft 38 and the spiral stirring blade 43 on the material when the superfine powder is extracted, the material continuously rolls in the material box 8, the superfine powder is separated from the material, and the suction effect of the powder suction machine 41 on the superfine powder is better; the first grinding plate 2, the second grinding plate 3, the grinding pressing plate 4 and the material box 8 are continuously worked by the continuous lifting of the hydraulic telescopic cylinder 7, the hydraulic telescopic cylinder 7 and the powder suction machine 41 continue to work for a period of time after grinding is completed, the superfine powder continues to be absorbed for a period of time, so that the material just falling into the material box 8 contains more superfine powder; when the hydraulic telescopic cylinder 7 is retracted upward after the superfine powder absorption is completed, the distance of the upward retraction of the hydraulic telescopic cylinder 7 increases, in the normal grinding process, the lifting plate 17 is moved up and down by a certain distance under the driving of the hydraulic telescopic cylinder 7, the baffle 44 is moved within a certain range under the pulling of the pull rope 45, the baffle 44 always blocks the discharge port within the range, when it is needed to open the discharge port, only the upward moving distance of the lifting plate 17 driven by the hydraulic telescopic cylinder 7 is lengthened, the moving distance of the baffle 44 pulled by the pull rope 45 is increased, the discharge port on the baffle 44 coincides with the discharge port, and the material in the material box 8 can be discharged through the discharge port. A sealed box door can be arranged on the side wall of the shell 1, so that the residual material on the first grinding plate 2 and the second grinding plate 3 can be easily cleaned.

[0050] It should be noted that, in the present document, relational terms such as first and second and the like can be 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 can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0051] Finally, it should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art will appreciate that the technical solutions described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalent ones. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A cement grinding device with an integrated ultrafine powder separator, comprising a housing (1), characterized in that: The housing (1) is provided with a first grinding plate (2) and a second grinding plate (3). A grinding pressure plate (4) is provided above the first grinding plate (2). A connecting rod (5) is fixedly provided at the upper end of the grinding pressure plate (4). A telescopic rod (6) is fixedly connected at the upper end of the connecting rod (5). The end of the telescopic rod (6) away from the connecting rod (5) is fixedly provided at the output end of the hydraulic telescopic cylinder (7). Both ends of the first grinding plate (2) and the second grinding plate (3) are provided with swinging mechanisms. A material box (8) is provided inside the housing (1) below the second grinding plate (3). An ultrafine powder separation mechanism is provided at the outer end of the material box (8). A limiting cylinder (9) is rotatably provided at the middle position of the top of the housing (1). A ring gear (10) is fixedly provided on the outer side wall of the limiting cylinder (9). The telescopic rod (6) is provided through the limiting cylinder (9). Limiting protrusions (11) are fixedly provided on both side walls of the telescopic rod (6). A linear slide groove (12) for sliding of the limiting protrusions (11) is provided on the inner side wall of the limiting cylinder (9). A reduction gearbox (13) is provided on one side of the limiting cylinder (9). A drive wheel (14) is fixedly provided on the output shaft of the reduction gearbox (13). The drive wheel (14) meshes with the ring gear (10) on the outer side wall of the limiting cylinder (9). A first gear (15) is fixedly connected to the input end of the reduction gearbox (13). A first toothed plate (16) is meshed on one side of the first gear (15). A lifting plate (17) is fixedly provided at the bottom end of the upper end of the first toothed plate (16). The lifting plate (17) is fixedly provided on the telescopic rod (6). The swing mechanism includes a rotating shaft (28) fixedly disposed at both ends of the first grinding plate (2) and the second grinding plate (3). One end of the rotating shaft (28) is disposed inside the side wall of the housing (1) and is fixedly connected to a second gear (29). A second toothed plate (30) is meshed on one side of the second gear (29). The upper end of the second toothed plate (30) passes through the top side wall of the housing (1) and is fixedly disposed at the bottom end of the lifting plate (17). A through hole is opened in the middle of the rotating shaft (28). A connecting shaft (31) is rotatably disposed at the through hole. A rotating rod (32) is fixedly disposed at one end of the connecting shaft (31). Several sets of knocking rods (33) are evenly disposed on the rotating rod (32). A third gear (34) is fixedly disposed on one side of the connecting shaft (31). The third gear (34) meshes with the second toothed plate (30). The two second toothed plates (30) at the bottom of the lifting plate (17) are located on the front and rear sides of the rotating shaft (28) at both ends of the first grinding plate (2) and the second grinding plate (3), respectively. The racks on the two second toothed plates (30) are staggered. When the second toothed plate (30) is raised or lowered, the rotation directions of the first grinding plate (2) and the second grinding plate (3) are opposite.

2. The cement grinding equipment with an attached ultrafine powder separator according to claim 1, characterized in that: The upper end of the hydraulic telescopic cylinder (7) is rotatably mounted on the support frame (18), the support frame (18) is fixedly mounted on the housing (1), the bottom end of the limiting cylinder (9) is fixedly provided with a ball (19), and the top side wall of the housing (1) is provided with a groove (20) that matches the ball (19).

3. A cement grinding equipment with an attached ultrafine powder separator according to claim 2, characterized in that: The grinding plate (4) has grinding blocks (21) evenly spaced at the bottom end. The first grinding plate (2) has a grinding groove (22) on its upper surface. The first grinding plate (2) has a first grinding protrusion (23) evenly spaced at the bottom end. The second grinding plate (3) has a second grinding protrusion (24) on its upper surface. Both the first grinding plate (2) and the second grinding plate (3) have cavities (25) inside. Both the upper and lower ends of the cavity (25) have discharge ports (26), and both discharge ports (26) have screens (27).

4. A cement grinding equipment with an attached ultrafine powder separator according to claim 1, characterized in that: Limiting plates (35) are provided at the upper ends of the first grinding plate (2) and the second grinding plate (3). A guide plate (36) is fixedly provided inside the housing (1) below the second grinding plate (3). The bottom end of the guide plate (36) is connected to the feed inlet (37) of the hopper (8).

5. A cement grinding equipment with an attached ultrafine powder separator according to claim 3, characterized in that: The ultrafine powder separation mechanism includes a stirring shaft (38) disposed inside the material box (8). Both ends of the stirring shaft (38) pass through the material box (8) and are disposed inside the side wall of the shell (1). Both ends of the stirring shaft (38) are fixedly provided with a fourth gear (39). One side of one of the fourth gears (39) is meshed with a second tooth plate (30), and the other side of the fourth gear (39) is meshed with a third tooth plate (40). The top of the third tooth plate (40) is fixedly connected to a lifting plate (17). A powder suction machine (41) is fixedly disposed at the upper end of the material box (8). The powder suction machine (41) is connected to the collection box (42) at the outer end of the shell (1) through a conveying pipe. Spiral stirring blades (43) are disposed on the stirring shaft (38) at the position inside the material box (8).

6. A cement grinding equipment with an attached ultrafine powder separator according to claim 5, characterized in that: The second tooth plate (30) and the third tooth plate (40) meshing with the two fourth gears (39) are located on the same side of the fourth gears (39). The bottom end of the material box (8) is provided with a discharge port, and a baffle (44) is provided at the discharge port.

7. A cement grinding device with an attached ultrafine powder separator according to claim 6, characterized in that: The material box (8) is fixedly mounted on the support plate (47). A pull rope (45) is provided on one side of the baffle (44). One end of the pull rope (45) passes through the side wall of the housing (1) and is mounted on the bottom of the lifting plate (17) via the guide wheel (46). The baffle (44) is slidably mounted on the support plate (47). A discharge port matching the discharge port is opened on the baffle (44). A reset spring (48) is fixedly mounted on one side of the baffle (44).

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