High efficiency cement mill and method of use

Abstract

The application relates to the technical field of cement mills, in particular to a high-efficiency cement mill and a use method thereof. The high-efficiency cement mill comprises a base, a cylinder is arranged on the base, a cylinder head is rotationally arranged at the front end of the cylinder, a cylinder tail is fixedly installed at the rear end of the cylinder, a feeding device is arranged on the cylinder head, and a discharging device is arranged on the cylinder tail. Two supports are fixedly installed on the top of the base. The high-efficiency cement mill and the use method thereof have the advantages that the preliminarily ground coarse materials can enter the cylinder through the leakage holes on the inner cylinder, and then the corresponding steel balls are driven to further finely grind by the rotating cylinder. Compared with the simple separation of coarse materials, the inner and outer structures of the inner cylinder in the above-mentioned cylinder can not only separate the coarse materials from the raw materials, so as to save the overall processing time and improve the working efficiency of the cement mill, but also can directly finely process the separated coarse materials, so that the processing efficiency is not affected by the coarse material transfer, and the separation and reprocessing are all carried out in the equipment, so that pollution is not caused.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cement grinding, in particular to an efficient cement grinding mill and a use method thereof. BACKGROUND

[0002] Cement needs to use a cement grinding mill in the processing process. The cement grinding mill is a key equipment for further crushing after material crushing. The working principle of the commonly used cement grinding mill is that the material is uniformly fed into the mill bin through the feeding device via the hollow shaft screw. The bin is provided with a stepped lining plate or a corrugated lining plate and is internally provided with steel balls of different specifications. The cylinder rotates to generate a centrifugal force to bring the steel balls to a certain height and then the steel balls fall down to impact and grind the material.

[0003] The existing patent (publication number: CN113856839A) discloses an aluminate cement semi-finished product processing cement grinding mill, which comprises a roller, a power structure and a support frame. The roller is connected with the ground through the support frame. The left end of the roller is provided with a feeding port, and the right end of the roller is provided with a discharging port. The outer ring of the left end of the roller is connected with a large gear. The side wall of the coarse grinding bin at the left end of the roller is uniformly provided with a discharging hole. The outer surface of the coarse grinding bin at the left end of the roller is movably connected with a filter screen. The aluminate cement semi-finished product processing cement grinding mill is provided with a filter screen. The powder that meets the requirements in the coarse grinding bin can pass through the mesh holes of the filter screen and fall into the inner cavity of the sealing cover. The powder falls into the inner cavity of the storage hopper under the action of gravity. The steel balls inside the above-mentioned cement grinding mill are easily mixed with the material, which can affect the normal breaking and grinding effect. Artificial cleaning is required regularly, which affects the processing efficiency.

[0004] In view of this, an efficient cement grinding mill and a use method thereof are provided. SUMMARY

[0005] The present application aims to provide an efficient cement grinding mill and a use method thereof to solve the problem that the steel balls inside the existing cement grinding mill are easily mixed with the material, which can affect the normal breaking and grinding effect. Artificial cleaning is required regularly, which affects the processing efficiency. To achieve the above-mentioned purpose, the present application provides the following technical scheme: an efficient cement grinding mill, comprising a base, wherein the base is provided with a cylinder, the front end of the cylinder is rotatably provided with a cylinder head, and the rear end of the cylinder is fixedly installed with a cylinder tail, the cylinder head is provided with a feeding device, and the cylinder tail is provided with a discharging device.

[0006] The top of the base is fixedly installed with two supports. The cylinder tail is rotatably installed on the rear support, and the cylinder head is fixedly installed on the front support.

[0007] The base is fixedly installed with a driving motor, and the driving motor is provided with a gear on the rotating shaft. The outer ring of the cylinder is fixedly installed with a driving gear ring, and the driving gear ring and the gear are intermeshed.

[0008] The barrel body and the barrel head are provided with a grinder.

[0009] Preferably, the grinder comprises an inner barrel movably arranged in the barrel body and rotatably connected to the inner side of the barrel head, and the feeding device feeds the inner barrel.

[0010] The inner ring of the barrel body is fixedly installed with a primary gear ring, the outer ring of the inner barrel is fixedly installed with a secondary gear ring, the inner side of the barrel head is rotatably connected with a transmission gear, and the transmission gear is in mesh with the primary gear ring and the secondary gear ring, and the primary gear ring drives the secondary gear ring to rotate through the transmission gear.

[0011] The surface of the inner barrel is provided with two groups of leakage holes, and the two groups of leakage holes are arranged symmetrically along the inner barrel.

[0012] The inner barrel is provided with two groups of ball changing assemblies, and the two groups of ball changing assemblies are arranged on the upper and lower sides of the inner barrel.

[0013] Preferably, the ball changing assembly comprises an arc groove opened on the inner wall of the inner barrel, and a flap is slidably connected in the arc groove, the left and right sides of the flap are fixedly connected with skirts with elasticity, and the gap between the skirt and the arc groove is provided as a pressing groove.

[0014] When the flap moves to the left, the left skirt and the left wall of the arc groove form a ball collecting groove through the gap, and the groove width of the ball collecting groove is smaller than the diameter of the qualified steel ball, and when the flap moves to the right, the right skirt and the right wall of the arc groove form a ball releasing groove through the gap, and the groove width of the ball releasing groove is larger than the diameter of the qualified steel ball.

[0015] The side wall of the ball collecting groove is fixedly installed with a magnetic sticker for restraining the steel ball.

[0016] A plurality of ball changing grooves are opened on the side of the flap and the skirt surface opposite to the arc groove in the left-right direction, a plurality of triangular edges for intercepting the steel ball are fixedly installed on the surface of the flap adjacent to the ball collecting grooves, and the area between the ball changing groove and the adjacent two triangular edges corresponds.

[0017] Two grooves are opened on the bottom wall of the arc groove, and a wedge is fixedly connected in the groove through a spring piece, the inclined surface of the wedge corresponds to the ball collecting groove, and the side plane of the wedge corresponds to the ball releasing groove.

[0018] A new steel ball is placed between the two wedges.

[0019] The flap, the skirt, the ball changing groove and the arc groove are provided with a releaser.

[0020] Preferably, the releaser comprises a through hole opened on the bottom wall of the arc groove, and the through hole is located between the two wedges, and the inner part of the through hole is provided with a ring-shaped rubber film.

[0021] The inner top wall of the ball replacing groove and the apron is provided with a cutout, and a flap corresponding to the through hole is arranged in the cutout, the flap is connected with the inner wall of the cutout at the middle position, and a gap is left between the flap and the top wall of the cutout on the side of the ball replacing groove.

[0022] Preferably, a sealing ring is fixedly installed in the inner part of the barrel, and the sealing ring divides the inner part of the barrel into a processing area and a gear area.

[0023] Preferably, a steel curtain for intercepting materials is arranged on the side surface of the ball replacing groove.

[0024] Preferably, a ball cavity for accommodating new steel balls is arranged in the inner part of the flap in the front-rear direction, the ball replacing groove is communicated with the ball cavity, and the inner wall of the ball cavity is inclined to the ball replacing groove.

[0025] A use method of the high-efficiency cement mill, comprising the following steps:

[0026] S1, the inner part of the barrel and the inner barrel are filled with a plurality of steel balls for crushing and grinding materials, wherein the steel balls in the inner barrel are larger for coarse grinding, and the steel balls in the barrel are smaller for fine grinding; the driving motor drives the barrel to rotate counterclockwise through the driving gear and the driving gear ring; the first gear ring in the inner part of the barrel drives the second gear ring and the inner barrel to rotate clockwise through the transmission gear; in this process, the materials are uniformly fed into the inner part of the inner barrel by the feeding device; the inner barrel rotates to generate centrifugal force to bring the steel balls to a certain height and then drop down to produce heavy hitting and grinding effect on the materials; wherein the coarsely ground materials can enter the barrel through the leakage hole on the inner barrel, and then the corresponding steel balls are driven by the rotating barrel to further grind them finely;

[0027] S2, when the inner barrel rotates clockwise, the steel balls in the inner barrel are lifted along the left side thereof, wherein the steel balls that are reduced due to wear are blocked by the triangular edge; the flap rotating from the bottom to the left side of the inner barrel slides along the arc groove due to the weight of the flap and the balls, that is, the flap moves right to open the ball collecting groove, and when the flap reaches the right side through the upper part, the flap moves left along the arc groove to close the ball collecting groove and open the ball replacing groove;

[0028] S3, through the reciprocating left-right movement of the flap along the arc groove, when the ball collecting groove is opened, the old steel balls intercepted by the triangular edge fall into the ball collecting groove and are attracted by the magnetic sticker; when the ball collecting groove is closed, the left apron is deflected by the old steel balls due to the left movement of the flap, until the old steel balls reach the ball replacing groove; with the right movement of the flap again, the old steel balls in the ball replacing groove are driven to move right synchronously, and the first wedge is squeezed to reach between the two wedges, and the new steel ball at this position is pushed right to pass through the second wedge; then the flap moves left, and due to the reverse stopping effect of the wedges, the old steel balls and the new steel balls are kept in the original positions, so that the new steel ball pushes away the right apron to reach the ball replacing groove; when the ball replacing groove is located at the upper part of the inner barrel, the new steel ball can fall into the inner barrel.

[0029] S4, in the process of extruding the right skirt of the new steel ball to reach the ball placing groove, the new steel ball contacts the warped plate, presses the warped plate to deflect, so that one end of the warped plate relative to the old steel ball is pressed to the old steel ball, and the old steel ball is extruded to pass through the rubber film and the through hole and fall into the cylinder.

[0030] Compared with the prior art, the beneficial effects of the present application are:

[0031] In the present application, the preliminarily ground coarse material can enter the cylinder through the holes on the inner cylinder, and then the corresponding steel ball is driven by the rotating cylinder for further fine grinding. Compared with simply separating the coarse material, the above-mentioned inner and outer structures of the cylinder containing the inner cylinder can not only separate the coarse material from the raw material to save the overall processing time and improve the working efficiency of the cement mill, but also enable the separated coarse material to be directly subjected to fine processing again, avoiding the influence of coarse material transfer on processing efficiency, and the separation and reprocessing are all carried out inside the equipment, which is not easy to cause pollution.

[0032] In the present application, the old steel ball falls into the ball collecting groove and is attracted by the magnetic sticker. When the ball collecting groove is closed, the left moving of the movable plate causes the left skirt to be reversely deflected by the old steel ball, until the old steel ball reaches the ball replacing groove. With the right moving of the movable plate again, the old steel ball in the ball replacing groove is driven to move right synchronously, extruding the first wedge to reach between the two wedges, and pushing the new steel ball at this position right through the second wedge. Then, the movable plate moves left, and due to the reverse stopping effect of the wedge, the old steel ball and the new steel ball are both kept in place, so that the new steel ball extrudes the right skirt to reach the ball placing groove. When the ball placing groove is located at the upper part of the inner cylinder, the new steel ball can fall into the inner cylinder. In this way, the rotation of the inner cylinder drives the movable plate to slide left and right, and the old steel ball is recycled and the new steel ball is replenished, avoiding the influence of too small steel balls mixed in the material on the breaking and grinding effect, and ensuring that the overall equipment can achieve planned production according to the design target.

[0033] In the present application, the new steel ball extrudes the warped plate to deflect, so that one end of the warped plate relative to the old steel ball is pressed to the old steel ball, and the old steel ball is extruded to pass through the rubber film and the through hole and fall into the cylinder. In this way, the worn old steel ball is released into the cylinder for fine grinding of the coarse material, avoiding the influence of worn steel balls on the grinding effect of the inner cylinder, and also enabling the old steel ball to be automatically recycled and reused, realizing the maximum utilization of the grinding medium inside the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a schematic diagram of the three-dimensional structure of the present application;

[0035] Figure 2 is a schematic diagram of the structure of the cylinder and the inner cylinder of the present application;

[0036] Figure 3 is a schematic diagram of the structure of the inner cylinder and the cylinder head of the present application;

[0037] Figure 4The inner cylinder of the application is shown in the perspective view Figure 1 ;

[0038] Figure 5 The inner cylinder of the application is shown in the perspective view Figure 2 ;

[0039] Figure 6 The arc slot of the application is shown in the perspective view

[0040] Figure 7 The inner cylinder of the application is shown in the perspective view Figure 6 The inner cylinder of the application is shown in the perspective view

[0041] Figure 8 The arc slot of the application is shown in the perspective view

[0042] Figure 9 The ball replacement slot and the hinged plate of the application are shown in the bottom view.

[0043] In the figure: 1, base; 2, cylinder body; 3, cylinder head; 4, cylinder tail; 5, support; 6, drive motor; 7, drive gear; 8, drive gear ring; 9, grinder; 91, inner cylinder; 92, primary gear ring; 93, secondary gear ring; 94, transmission gear; 95, leakage hole; 96, ball replacement assembly; 961, arc slot; 962, flap; 963, apron; 964, ball collection slot; 965, ball release slot; 966, magnetic sticker; 967, ball replacement slot; 968, triangular edge; 969, groove; 9610, wedge; 9611, releaser; 96111, through hole; 96112, adhesive film; 96113, cutout; 96114, hinged plate. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0045] Please refer to Figures 1 to 9 , the application provides a technical solution: a high-efficiency cement mill, comprising a base 1, and the base 1 is provided with a cylinder body 2, the front end of the cylinder body 2 is rotatably provided with a cylinder head 3, and the rear end of the cylinder body 2 is fixedly installed with a cylinder tail 4, the cylinder head 3 is provided with a feeding device, and the cylinder tail 4 is provided with a discharging device;

[0046] Two supports 5 are fixedly installed on the top of the base 1, the cylinder tail 4 is rotatably installed on the rear support 5, and the cylinder head 3 is fixedly installed on the front support 5;

[0047] The base 1 is fixedly provided with a driving motor 6, and a driving gear 7 is arranged on the rotating shaft of the driving motor 6; the outer ring of the barrel 2 is fixedly provided with a driving gear ring 8, and the driving gear ring 8 is engaged with the driving gear 7; the driving motor 6 drives the barrel 2 to rotate counterclockwise through the driving gear 7 and the driving gear ring 8, and the rotation generates centrifugal force to bring the steel balls to a certain height and then drop down, thereby producing a heavy blow and grinding effect on the material.

[0048] The barrel 2 and the barrel head 3 are provided with a grinding device 9.

[0049] In the embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figures 5 to 9 The grinding device 9 comprises an inner barrel 91 movably arranged in the barrel 2, and the inner barrel 91 is rotatably connected to the inner side of the barrel head 3; the inner barrel 91 is fed by the feeding device; the steel balls in the inner barrel 91 are relatively large, used for coarse grinding; and the steel balls in the barrel 2 are relatively small, used for fine grinding.

[0050] The inner ring of the barrel 2 is fixedly provided with a first gear ring 92, the outer ring of the inner barrel 91 is fixedly provided with a second gear ring 93, the inner side of the barrel head 3 is rotatably connected with a transmission gear 94, and the transmission gear 94 is engaged with the first gear ring 92 and the second gear ring 93; the first gear ring 92 drives the second gear ring 93 to rotate through the transmission gear 94.

[0051] The surface of the inner barrel 91 is provided with two groups of leakage holes 95, and the two groups of leakage holes 95 are symmetrically arranged along the inner barrel 91; the first gear ring 92 in the barrel 2 drives the second gear ring 93 and the inner barrel 91 to rotate clockwise through the transmission gear 94; in this process, the material is uniformly fed into the inner barrel 91 by the feeding device; the coarse material preliminarily ground by the inner barrel 91 can enter the barrel 2 along the leakage holes 95 on the inner barrel 91, and then further fine grinding is carried out by the corresponding steel balls driven by the rotating barrel 2.

[0052] The inner barrel 91 is provided with two groups of ball replacement assemblies 96, and the two groups of ball replacement assemblies 96 are arranged on the upper and lower sides of the inner barrel 91.

[0053] In the embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figures 5 to 9 The ball replacement assembly 96 comprises an arc groove 961 opened on the inner wall of the inner barrel 91, and a flap 962 is slidably connected in the arc groove 961; the left and right sides of the flap 962 are fixedly connected with elastic skirt plates 963, and the space between the skirt plates 963 and the arc groove 961 is set as an extrusion groove.

[0054] When the flap 962 moves left, the left skirt 963 and the left wall of the arc groove 961 form a ball collecting groove 964 through the gap, and the width of the ball collecting groove 964 is smaller than the diameter of the qualified steel ball. When the flap 962 moves right, the right skirt 963 and the right wall of the arc groove 961 form a ball releasing groove 965 through the gap, and the width of the ball releasing groove 965 is larger than the diameter of the qualified steel ball. The flap 962 at the bottom of the inner cylinder 91 slides along the arc groove 961 due to the weight of the ball and the self weight, that is, the flap 962 moves right to open the ball collecting groove 964. When the flap 962 reaches the right side through the upper part, the flap 962 moves left along the arc groove 961 due to the self weight to close the ball collecting groove 964 and open the ball releasing groove 965.

[0055] The sidewall of the ball collecting groove 964 is fixedly installed with a magnetic sticker 966 for restraining the steel ball.

[0056] The surface of the flap 962 opposite to the arc groove 961 is provided with a plurality of ball replacing grooves 967 in the left-right direction. The surface of the flap 962 adjacent to the ball collecting groove 964 is fixedly installed with a plurality of triangular edges 968 for intercepting the steel ball. The area between the ball replacing groove 967 and the adjacent two triangular edges 968 corresponds. When the inner cylinder 91 rotates clockwise, the steel ball inside is lifted along the left side thereof. The steel ball that is reduced due to wear is blocked by the triangular edge 968.

[0057] The bottom wall of the arc groove 961 is provided with two grooves 969, and the wedge block 9610 is fixedly connected in the groove 969 through a spring. The inclined surface of the wedge block 9610 corresponds to the ball collecting groove 964, and the side plane of the wedge block 9610 corresponds to the ball releasing groove 965.

[0058] The new steel ball is placed between the two wedge blocks 9610. When the ball collecting groove 964 is opened, the old steel ball intercepted by the triangular edge 968 falls into the ball collecting groove 964 and is attracted by the magnetic sticker 966. When the ball collecting groove 964 is closed, the left skirt 963 is deflected by the old steel ball when the flap 962 moves left, until the old steel ball reaches the ball replacing groove 967. With the right movement of the flap 962 again, the old steel ball in the ball replacing groove 967 is driven to move right synchronously, and the old steel ball pushes the new steel ball between the two wedge blocks 9610 to the right through the second wedge block 9610. Then the flap 962 moves left. Due to the reverse stopping effect of the wedge block 9610, the old steel ball and the new steel ball are kept in the original position, so that the new steel ball pushes the right skirt 963 to the ball releasing groove 965. When the ball releasing groove 965 is located at the upper part of the inner cylinder 91, the new steel ball can fall into the inner cylinder 91.

[0059] The flap 962, the skirt 963, the ball replacing groove 967 and the arc groove 961 are provided with a releaser 9611.

[0060] In the embodiment, as shown in Figure 1 、 Figure 2 、 Figure 3 ,Figure 4 、 Figures 5 to 9 As shown in the figure, the releaser 9611 includes a through hole 96111 opened on the bottom wall of the arc groove 961, and the through hole 96111 is located between the two wedge blocks 9610, and the inside of the through hole 96111 is provided with a ring-shaped adhesive film 96112;

[0061] A cutout 96113 is opened on the inner top wall of the ball replacement groove 967 and the apron 963, and a flap 96114 corresponding to the through hole 96111 is arranged in the cutout 96113, the flap 96114 is connected with the inner wall of the cutout 96113 at the middle position, and a gap is left between the flap 96114 and the top wall of the cutout 96113 on the side of the ball replacement groove 965. In the process of extruding the right apron 963 to the ball replacement groove 965, the new steel ball contacts the flap 96114, presses the flap 96114 to deflect, so that the end of the flap 96114 opposite to the old steel ball is pressed towards the old steel ball, and the old steel ball is extruded to fall into the cylinder 2 through the adhesive film 96112 and the through hole 96111.

[0062] In this embodiment, as shown in the figure, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figures 5 to 9 A sealing ring is fixedly installed in the inside of the cylinder 2, and the sealing ring divides the processing area in the inside of the cylinder 2 and the area where the gear is located, so as to avoid the material processed in the cylinder 2 from entering the running area of the driving gear 7 and the primary gear ring 92 and the secondary gear ring 93 to interfere.

[0063] In this embodiment, as shown in the figure, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figures 5 to 9 The steel curtain arranged on the side surface of the ball replacement groove 965 of the apron 963 can only deflect outwardly and cannot deflect into the ball replacement groove 967. When the arc groove 961 is located at the lower side by the rotation of the inner cylinder 91, the left apron 963 is closed by the magnetic sticker 966 between the ball collection groove 964, and the material cannot enter. The steel curtain on the right apron 963 can intercept the material to avoid the material from entering the ball replacement groove 967 to affect the operation.

[0064] In this embodiment, as shown in the figure, Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figures 5 to 9 Figure 1 Figure 2 Figure 3 Figure 4 Figures 5 to 9 Figure 1 Figure 2 Figure 3 Figure 4 Figures 5 to 9 A ball cavity for accommodating the new steel ball is opened in the inside of the flap 962 along the front-rear direction, the ball replacement groove 967 is communicated with the ball cavity, and the inner wall of the ball cavity is inclined to the ball replacement groove 967. After the new steel ball in the ball replacement groove 967 is released into the inner cylinder 91 and the old steel ball is released into the cylinder 2, the new steel ball in the ball cavity can roll into the ball replacement cavity for replenishment.

[0065] A method for using a high-efficiency cement mill, comprising the following steps:

[0066] S1, the cylinder 2 and the inner cylinder 91 are filled with a plurality of steel balls for breaking and grinding materials, wherein the steel balls in the inner cylinder 91 are larger for coarse grinding, and the steel balls in the cylinder 2 are smaller for fine grinding, the driving motor 6 drives the cylinder 2 to rotate counterclockwise through the driving gear 7 and the driving gear ring 8, the first gear ring 92 inside the cylinder 2 drives the second gear ring 93 and the inner cylinder 91 to rotate clockwise through the transmission gear 94, in this process, the materials are uniformly fed into the inner cylinder 91 by the feeding device, the inner cylinder 91 rotates to generate centrifugal force to bring the steel balls to a certain height and then fall down to produce heavy blows and grinding effects on the materials, wherein the coarse materials after preliminary grinding can enter the cylinder 2 through the leakage hole 95 on the inner cylinder 91, and then further fine grinding is carried out by the corresponding steel balls driven by the rotating cylinder 2;

[0067] S2, when the inner cylinder 91 rotates clockwise, the steel balls inside the inner cylinder 91 are lifted along the left side thereof, wherein the steel balls that are reduced due to wear are blocked by the triangular edge 968, the flap 962 rotating from the bottom to the left side of the inner cylinder 91 slides along the arc groove 961 due to its own weight and the weight of the balls, that is, the flap 962 moves right to open the ball collecting groove 964, and when the flap 962 reaches the right side through the upper part, the flap 962 moves left along the arc groove 961 to close the ball collecting groove 964 and open the ball releasing groove 965;

[0068] S3, by reciprocating the flap 962 along the arc groove 961, when the collecting groove is open, the old steel balls intercepted by the triangular edge 968 fall into the ball collecting groove 964 and are attracted by the magnetic sticker 966, when the ball collecting groove 964 is closed, the left skirt plate 963 is deflected by the old steel balls when the flap 962 moves left, until the old steel balls reach the ball replacing groove 967, and then the flap 962 moves right again, the old steel balls in the ball replacing groove 967 are driven to move right synchronously, extruding the first wedge 9610 to reach between the two wedges 9610, and pushing the new steel balls at this position to the right through the second wedge 9610, then the flap 962 moves left, and due to the reverse stopping effect of the wedge 9610, the old steel balls and the new steel balls are both kept in place, so that the new steel balls extrude the right skirt plate 963 to reach the ball releasing groove 965, when the ball releasing groove 965 is located at the upper part of the inner cylinder 91, the new steel balls can fall into the inner cylinder 91;

[0069] S4, in the process of the new steel balls extruding the right skirt plate 963 to reach the ball releasing groove 965, they contact the flap 96114, press the flap 96114 to deflect, so that one end of the flap 96114 relative to the old steel ball is pressed towards the old steel ball, and the old steel ball is extruded to pass through the rubber film 96112 and the through hole 96111 and fall into the cylinder 2.

[0070] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Various changes and improvements can be made to the present application without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency cement mill, comprising a base (1), and a cylindrical body (2) disposed on the base (1), characterized in that: The front end of the cylinder (2) is rotatably provided with a cylinder head (3), and the rear end of the cylinder (2) is fixedly installed with a cylinder tail (4). The cylinder head (3) is provided with a feeding device, and the cylinder tail (4) is provided with a discharging device. The base (1) has two supports (5) fixedly installed on its top. The tail of the cylinder (4) is rotatably installed on the rear support (5). The head of the cylinder (3) is fixedly installed on the front support (5). A drive motor (6) is fixedly installed on the base (1), and a drive gear (7) is provided on the rotating shaft of the drive motor (6). A drive gear ring (8) is fixedly installed on the outer ring of the cylinder (2), and the drive gear ring (8) meshes with the drive gear (7). The cylinder (2) and the cylinder head (3) are provided with a grinding mill (9); The mill (9) includes an inner cylinder (91) movably disposed inside the cylinder body (2), and the inner cylinder (91) is rotatably connected to the inner side of the cylinder head (3). The feeding device feeds material into the inner cylinder (91). Two sets of leakage holes (95) are opened on the surface of the inner cylinder (91), and the two sets of leakage holes (95) are symmetrically arranged on the left and right sides along the inner cylinder (91). Two sets of ball-changing components (96) are provided on the inner cylinder (91), and the two sets of ball-changing components (96) are arrayed on the upper and lower sides of the inner cylinder (91); The ball-changing assembly (96) includes an arc groove (961) opened on the inner wall of the inner cylinder (91), and a movable plate (962) is slidably connected in the arc groove (961). Both sides of the movable plate (962) are fixedly connected with elastic skirts (963), and the empty area between the skirts (963) and the arc groove (961) is set as a squeezing groove. When the flap (962) moves to the left, a ball receiving groove (964) is formed between the left side skirt (963) and the left side wall of the arc groove (961) through a gap, and the groove width of the ball receiving groove (964) is smaller than the diameter of the qualified steel ball. When the flap (962) moves to the right, a ball releasing groove (965) is formed between the right side skirt (963) and the right side wall of the arc groove (961) through a gap, and the groove width of the ball releasing groove (965) is larger than the diameter of the qualified steel ball. The ball receiving groove (964) is fixedly installed with a magnetic sticker (966) for restraining the steel ball. On the side of the surface of the flap (962) and the skirt (963) opposite to the arc groove (961), a number of ball-changing grooves (967) are opened in the left and right direction. A number of triangular sides (968) for intercepting steel balls are fixedly installed on the surface of the flap (962) adjacent to the ball-receiving groove (964). The area between the ball-changing groove (967) and the two adjacent triangular sides (968) corresponds. The bottom wall of the arc groove (961) has two grooves (969), and a wedge (9610) is fixedly connected in the groove (969) by a spring piece. The inclined surface of the wedge (9610) corresponds to the ball receiving groove (964), and the side plane of the wedge (9610) corresponds to the ball releasing groove (965). A new steel ball is placed between the two wedges (9610); Release devices (9611) are provided in the flap (962), skirt (963), ball changing groove (967) and arc groove (961).

2. The high-efficiency cement mill according to claim 1, characterized in that: The inner ring of the cylinder (2) is fixedly installed with a primary gear ring (92), and the outer ring of the inner cylinder (91) is fixedly installed with a secondary gear ring (93). The inner side of the cylinder head (3) is rotatably connected with a transmission gear (94), and the transmission gear (94) meshes with the primary gear ring (92) and the secondary gear ring (93). The primary gear ring (92) drives the secondary gear ring (93) to rotate through the transmission gear (94).

3. The high-efficiency cement mill according to claim 2, characterized in that: The release device (9611) includes a through hole (96111) opened on the bottom wall of the arc groove (961), and the through hole (96111) is located between two wedges (9610). An annular adhesive film (96112) is provided inside the through hole (96111). The ball changing groove (967) and the skirt plate (963) have a cut (96113) on their inner top walls, and a rocker (96114) corresponding to the through hole (96111) is provided in the cut (96113). The rocker (96114) is connected to the inner wall of the cut (96113) at its center, and a gap is left between the end of the rocker (96114) opposite to the ball placing groove (965) and the top wall of the cut (96113).

4. The high-efficiency cement mill according to claim 1, characterized in that: A sealing ring is fixedly installed inside the cylinder (2), and the sealing ring divides the internal processing area of ​​the cylinder (2) from the area where the gear is located.

5. The high-efficiency cement mill according to claim 3, characterized in that: The skirt plate (963) is provided with a steel curtain for intercepting materials on the side surface of the ball discharge trough (965).

6. The high-efficiency cement mill according to claim 5, characterized in that: The flap (962) has a ball cavity in the front-to-back direction to accommodate new steel balls, and the ball changing groove (967) is connected to the ball cavity, and the inner wall of the ball cavity is inclined toward the ball changing groove (967).

7. A method of using a high-efficiency cement mill, based on the high-efficiency cement mill described in claim 6, comprising the following steps: S1, the cylinder (2) and the inner cylinder (91) are filled with several steel balls for crushing and grinding materials. The steel balls in the inner cylinder (91) are larger and used for coarse grinding, while the steel balls in the cylinder (2) are smaller and used for fine grinding. The drive motor (6) drives the cylinder (2) to rotate counterclockwise through the drive gear (7) and drive gear ring (8). The first-stage gear ring (92) inside the cylinder (2) drives the second-stage gear ring (93) and the inner cylinder (91) to rotate clockwise through the transmission gear (94). During this process, the material is evenly fed into the inner cylinder (91) by the feeding device. The rotation of the inner cylinder (91) generates centrifugal force, which carries the steel balls to a certain height and then drops them, producing a heavy impact and grinding effect on the material. The coarse material that has been initially ground can enter the cylinder (2) through the leakage hole (95) on the inner cylinder (91) and then be further finely ground by the corresponding steel balls driven by the rotating cylinder (2). S2. When the inner cylinder (91) rotates clockwise, the steel balls inside the inner cylinder (91) are lifted along its left side. Among them, the steel balls that have shrunk due to wear are blocked by the triangular side (968). The flap (962) that rotates from the bottom of the inner cylinder (91) to the left side slides along the arc groove (961) due to its own weight and the weight of the balls. That is, the flap (962) moves to the right and opens the ball receiving groove (964). As the flap (962) passes through the upper part and reaches the right side, the flap (962) moves to the left along the arc groove (961) due to its own weight, closing the ball receiving groove (964) and opening the ball releasing groove (965). S3. By moving the flap (962) back and forth along the arc groove (961), when the ball receiving groove is open, the old steel ball intercepted by the triangular edge (968) falls into the ball receiving groove (964) and is attracted by the magnet (966). When the ball receiving groove (964) is closed, the flap (962) moves to the left, causing the left side skirt (963) to bend against the old steel ball until the old steel ball reaches the ball changing groove (967). As the flap (962) moves to the right again, the old steel ball in the ball changing groove (967) is released. Driven synchronously to the right, the old steel ball is squeezed to the space between the two wedges (9610), and the new steel ball is pushed to the right through the second wedge (9610). Then the flap (962) moves to the left. Due to the anti-reverse action of the wedge (9610), both the old and new steel balls remain in their original positions, allowing the new steel ball to push open the right side skirt (963) and reach the ball release groove (965). When the ball release groove (965) is located above the inner cylinder (91), the new steel ball can fall into the inner cylinder (91). S4. During the process of the new steel ball squeezing the right side skirt plate (963) to reach the ball release groove (965), it comes into contact with the rocker plate (96114), presses the rocker plate (96114) to deflect, so that the end of the rocker plate (96114) relative to the old steel ball presses against the old steel ball, and squeezes the old steel ball through the rubber membrane (96112) and the through hole (96111) to fall into the cylinder (2).

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