Efficient cement grinding mill and use method

Abstract

The invention relates to the technical field of cement grinding mills, in particular to an efficient cement grinding mill and a using method thereof.The efficient cement grinding mill comprises a base, a barrel is arranged on the base, a barrel head is rotatably arranged at the front end of the barrel, a barrel tail is fixedly installed at the rear end of the barrel, a feeding device is arranged on the barrel head, and a discharging device is arranged on the barrel tail. And two supports are fixedly mounted at the top of the base. According to the efficient cement mill and the using method, coarse materials subjected to primary grinding can enter the cylinder body along the leaking holes in the inner cylinder, then the rotating cylinder body drives the corresponding steel balls to be further finely ground, and compared with pure separation of the coarse materials, the internal and external structure with the inner cylinder in the cylinder body can separate the coarse materials from raw materials so as to save the overall machining time, and the production efficiency is improved. The working efficiency of the cement grinding mill is improved, separated coarse materials can be directly subjected to fine processing again, the situation that coarse material transfer affects the processing efficiency is avoided, separation and reprocessing do not separate from the interior of the equipment, and pollution is not prone to being caused.

Description

Technical Field

[0001] The invention relates to the technical field of cement mills, in particular to a high-efficiency cement mill and a use method thereof. Background Art

[0002] Cement mill is needed in the processing of cement. Cement mill is the key equipment for crushing materials after they are broken. The working principle of commonly used cement mill is that the material is fed into the mill bin through the feeding device and the hollow shaft spirally and evenly. There are stepped linings or corrugated linings in the bin, which are filled with steel balls of different specifications. The rotation of the cylinder generates centrifugal force to bring the steel balls to a certain height and then they fall, which has an impact and grinding effect on the materials.

[0003] The existing patent (publication number: CN113856839A) discloses a cement mill for processing semi-finished aluminate cement, including a drum, a power structure and a support frame, wherein the drum is connected to the ground through the support frame, a feed port is provided at the left end of the drum, a discharge port is provided at the right end of the drum, a large gear is connected to the outer ring of the left end of the drum, discharge holes are evenly provided on the side wall of the rough grinding bin at the left end of the drum, and a filter screen is movably connected to the outer surface of the rough grinding bin at the left end of the drum. In the cement mill for processing semi-finished aluminate cement, the powder that has reached the requirements in the rough grinding bin can pass through the mesh on the filter screen and fall into the inner cavity of the sealing cover, and the powder falls into the inner cavity of the storage hopper under the action of gravity. The worn steel balls inside the cement mill are mixed in the materials, which easily affect the normal crushing and grinding effects, and require manual regular shutdown and cleaning, which affects the processing efficiency.

[0004] In view of this, we propose a high-efficiency cement mill and a using method. Summary of the invention

[0005] The purpose of the present invention is to provide a high-efficiency cement mill and a method of using the same, so as to solve the problem in the above background technology that the worn steel balls in the existing cement mill are mixed in the materials and easily affect the normal crushing and grinding effect, and require manual regular shutdown and cleaning, which affects the processing efficiency. To achieve the above purpose, the present invention provides the following technical solutions: a high-efficiency cement mill, including a base, and a cylinder body is arranged on the base, the front end of the cylinder body is rotatably provided with a cylinder head, and the rear end of the cylinder body 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] Two supports are fixedly installed on the top of the base, the barrel tail is rotatably installed on the rear support, and the barrel head is fixedly installed on the front support.

[0007] A driving motor is fixedly mounted on the base, and a gear is arranged on the rotating shaft of the driving motor. A driving gear ring is fixedly mounted on the outer ring of the cylinder, and the driving gear ring and the gear are meshed with each other.

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

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

[0010] The inner ring of the cylinder body is fixedly installed with a primary gear ring, the outer ring of the inner cylinder is fixedly installed with a secondary gear ring, the inner side of the cylinder head is rotatably connected with a transmission gear, and the transmission gear is meshed 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 cylinder is provided with two groups of leakage holes, and the two groups of leakage holes are arranged symmetrically along the inner cylinder.

[0012] Two groups of ball-changing assemblies are arranged on the inner cylinder, and the two groups of ball-changing assemblies are arrayed on the upper and lower sides of the inner cylinder.

[0013] Preferably, the ball changing assembly includes an arc groove on the inner wall of the inner cylinder, and a movable plate is slidably connected in the arc groove, and elastic skirt plates are fixedly connected to the left and right sides of the movable plate, and the empty area between the skirt plate and the arc groove is set as an extrusion groove.

[0014] When the movable plate moves to the left, a ball receiving groove is formed by the gap between the left skirt plate and the left side wall of the arc groove, and the groove width of the ball receiving groove is smaller than the diameter of the qualified steel ball. When the movable plate moves to the right, a ball releasing groove is formed by the gap between the right skirt plate and the right side wall of the arc groove, and the groove width of the ball releasing groove is larger than the diameter of the qualified steel ball.

[0015] A magnetic sticker for restraining the steel ball is fixedly installed on the side wall of the ball receiving groove.

[0016] A plurality of ball changing grooves are provided on the side of the movable plate and the skirt plate surface opposite to the arc groove in the left and right directions, and a plurality of triangular edges for intercepting steel balls are fixedly installed on the movable plate surface adjacent to the ball receiving groove, and the ball changing groove corresponds to the area between two adjacent triangular edges.

[0017] Two grooves are arranged on the bottom wall of the arc groove, and wedge blocks are fixedly connected in the grooves through spring sheets. The inclined surface of the wedge block corresponds to the ball receiving groove, and the side plane of the wedge block corresponds to the ball releasing groove.

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

[0019] Releasers are arranged in the movable plate, skirt plate, ball changing groove and arc groove.

[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 wedge blocks, and an annular rubber film is arranged inside the through hole.

[0021] A cutout is provided on the inner top wall of the ball changing groove and the skirt plate, and a seesaw corresponding to the through hole is arranged in the cutout. The seesaw is connected to the inner wall of the cutout at its middle point, and a gap is left between the end of the seesaw opposite to the ball placing groove and the top wall of the cutout.

[0022] Preferably, a sealing ring is fixedly installed inside the cylinder, and the sealing ring divides the processing area inside the cylinder and the area where the gear is located.

[0023] Preferably, a steel curtain for intercepting materials is provided on the side surface of the skirt plate located at the ball placing trough.

[0024] Preferably, a ball cavity for accommodating a new steel ball is opened inside the movable plate along the front-to-back direction, and the ball changing groove is connected to the ball cavity, and the inner wall of the ball cavity is inclined toward the ball changing groove.

[0025] A method for using an efficient cement mill comprises the following steps: S1. The cylinder and the inner cylinder are filled with a number of steel balls for crushing and grinding materials. The steel balls in the inner cylinder are larger and used for coarse grinding, while the steel balls in the cylinder are smaller and used for fine grinding. The driving motor drives the cylinder to rotate counterclockwise through the driving gear and the driving gear ring. The primary gear ring inside the cylinder drives the secondary gear ring and the inner cylinder to rotate clockwise through the transmission gear. During this process, the material enters the inner cylinder evenly from the feeding device. The rotation of the inner cylinder generates centrifugal force to bring the steel balls to a certain height and then fall, which produces a heavy impact and grinding effect on the material. The coarse material that has been initially ground can enter the cylinder through the leakage hole on the inner cylinder, and then the corresponding steel balls are driven by the rotating cylinder for further fine grinding; S2. When the inner cylinder rotates clockwise, the steel balls inside the inner cylinder are lifted along the left side thereof, and the steel balls that have shrunk due to wear are blocked by the triangular edge. The flap that rotates from the bottom of the inner cylinder to the left side slides along the arc groove due to its own weight and the weight of the balls, that is, the flap moves rightward to open the ball receiving groove. When the flap reaches the right side through the upper part, the flap moves leftward along the arc groove due to its own weight to close the ball receiving groove and open the ball releasing groove. S3, by the reciprocating left and right movement of the movable plate along the arc groove, when the collecting groove is opened, the old steel ball intercepted by the triangular edge falls into the ball collecting groove and is attracted by the magnetic patch. When the ball collecting groove is closed, the movable plate moves leftward so that the left skirt plate is resisted and deflected by the old steel ball until the old steel ball reaches the ball changing groove. As the movable plate moves rightward again, the old steel ball in the ball changing groove is driven to move rightward synchronously, squeezing the first wedge block to reach between the two wedge blocks, and pushing the new steel ball here to the right through the second wedge block, and then the movable plate moves leftward. Due to the anti-return effect of the wedge block, the old steel ball and the new steel ball are both kept in place, so that the new steel ball squeezes the right skirt plate 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; S4. When the new steel ball squeezes the right skirt plate to reach the ball placing groove, it contacts the seesaw, pressing the seesaw to deflect, so that one end of the seesaw relative to the old steel ball presses toward the old steel ball, and squeezes the old steel ball through the rubber film and the through hole into the cylinder.

[0026] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the initially ground coarse material can enter the cylinder along the leakage hole on the inner cylinder, and then the corresponding steel balls are driven by the rotating cylinder for further fine grinding. Compared with the simple separation of coarse material, the internal and external structure 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 finely processed again, avoiding the impact of coarse material transportation on processing efficiency, and the separation and reprocessing are not separated from the inside of the equipment, which is not easy to cause pollution.

[0027] In the present invention, the old steel ball falls into the ball receiving groove and is attracted by the magnetic patch. When the ball receiving groove is closed, the movable plate moves to the left so that the left skirt plate is resisted and deflected by the old steel ball until the old steel ball reaches the ball changing groove. As the movable plate moves to the right again, the old steel ball in the ball changing groove is driven to move to the right synchronously, squeezing the first wedge block to reach between the two wedge blocks, and pushing the new steel ball here to the right through the second wedge block. Then the movable plate moves to the left. Due to the anti-return effect of the wedge block, the old steel ball and the new steel ball are retained in place, so that the new steel ball squeezes the right skirt plate 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, thereby driving the movable plate to slide left and right through the rotation of the inner cylinder, and realizing the recovery of the old steel balls and the replenishment of the new steel balls, avoiding the mixing of too small steel balls in the materials to affect the crushing and grinding effects, and ensuring that the overall equipment can achieve planned production according to the design goals.

[0028] In the present invention, the new steel ball squeezes the seesaw to deflect, so that one end of the seesaw is pressed toward the old steel ball, and the old steel ball is squeezed through the rubber film and the through hole to fall into the cylinder, so that the worn old steel ball is released into the cylinder for fine grinding of coarse materials, which avoids the influence of the worn steel ball on the grinding effect of the inner cylinder, and can also automatically recycle and reuse the old steel balls, thereby realizing the maximum utilization of the grinding media inside the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a schematic diagram of the structure of the cylinder body and the inner cylinder of the present invention; Figure 3 It is a structural schematic diagram of the inner cylinder and the cylinder head of the present invention; Figure 4 The three-dimensional structure of the inner tube of the present invention is cut away Figure 1 ; Figure 5The three-dimensional structure of the inner tube of the present invention is cut away Figure 2 ; Figure 6 It is a three-dimensional structural cross-sectional view of the arc groove of the present invention; Figure 7 For the present invention Figure 6 The enlarged view of point A in the middle; Figure 8 is a planar cross-sectional view of the arc groove of the present invention; Fig. 9 It is a bottom view of the ball changing groove and the seesaw of the present invention.

[0030] In the figure: 1. base; 2. cylinder; 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 changing assembly; 961. arc groove; 962. flap; 963. skirt; 964. ball collecting groove; 965. ball releasing groove; 966. magnetic tile; 967. ball changing groove; 968. triangular edge; 969. groove; 9610. wedge; 9611. releaser; 96111. through hole; 96112. adhesive film; 96113. incision; 96114. seesaw. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technical staff in this field without creative work are within the scope of protection of the present invention.

[0032] See also Figures 1 to 9 The present invention provides a technical solution: a high-efficiency cement mill, comprising a base 1, and a cylinder 2 is arranged on the base 1, a cylinder head 3 is rotatably arranged at the front end of the cylinder 2, and a cylinder tail 4 is fixedly installed at the rear end of the cylinder 2, a feeding device is arranged on the cylinder head 3, and a discharging device is arranged on the cylinder tail 4; Two supports 5 are fixedly installed on the top of the base 1, the barrel tail 4 is rotatably installed on the rear support 5, and the barrel head 3 is fixedly installed on the front support 5; A driving motor 6 is fixedly mounted on the base 1, and a driving gear 7 is arranged on the rotating shaft of the driving motor 6. A driving gear ring 8 is fixedly mounted on the outer ring of the cylinder 2, and the driving gear ring 8 and the driving gear 7 are meshed with each other. The driving motor 6 drives the cylinder 2 to rotate counterclockwise through the driving gear 7 and the driving gear ring 8. The rotation generates centrifugal force to bring the steel ball to a certain height and then drop it, producing a heavy impact and grinding effect on the material. The cylinder body 2 and the cylinder head 3 are provided with a grinder 9 .

[0033] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9 As shown, the grinder 9 includes an inner cylinder 91 movably arranged in the cylinder body 2, and the inner cylinder 91 is rotatably connected to the inner side of the cylinder head 3, and the feeding device feeds into the inner cylinder 91. The steel balls in the inner cylinder 91 are relatively large and used for coarse grinding, and the steel balls in the cylinder body 2 are relatively small and used for fine grinding; The inner ring of the cylinder 2 is fixedly mounted with a primary gear ring 92, the outer ring of the inner cylinder 91 is fixedly mounted 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 is meshed with the primary gear ring 92 and the secondary gear ring 93, and the primary gear ring 92 drives the secondary gear ring 93 to rotate through the transmission gear 94; Two groups of leakage holes 95 are provided on the surface of the inner cylinder 91, and the two groups of leakage holes 95 are symmetrically arranged along the inner cylinder 91. The primary gear ring 92 inside the cylinder body 2 drives the secondary gear ring 93 and the inner cylinder 91 to rotate clockwise through the transmission gear 94. During this process, the material enters the inner cylinder 91 evenly from the feeding device, and the coarse material preliminarily ground by the inner cylinder 91 can enter the cylinder body 2 through the leakage holes 95 on the inner cylinder 91, and then the corresponding steel balls are driven by the rotating cylinder body 2 for further fine grinding; Two sets of ball-changing assemblies 96 are arranged on the inner cylinder 91 , and the two sets of ball-changing assemblies 96 are arrayed on the upper and lower sides of the inner cylinder 91 .

[0034] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9 As shown, the ball-changing assembly 96 includes an arc groove 961 provided on the inner wall of the inner tube 91, and a movable plate 962 is slidably connected in the arc groove 961, and elastic skirt plates 963 are fixedly connected to the left and right sides of the movable plate 962, and the empty area between the skirt plate 963 and the arc groove 961 is set as an extrusion groove; When the movable plate 962 moves to the left, a ball receiving groove 964 is formed between the left skirt plate 963 and the left 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 a qualified steel ball. When the movable plate 962 moves to the right, a ball releasing groove 965 is formed between the right skirt plate 963 and the right 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 a qualified steel ball. The movable plate 962 rotates to the left side of the bottom of the inner tube 91 and slides along the arc groove 961 due to its own weight and the weight of the ball, that is, the movable plate 962 moves to the right to open the ball receiving groove 964. As the movable plate 962 reaches the right side through the upper part, the movable plate 962 moves to the left along the arc groove 961 due to its own weight to close the ball receiving groove 964 and open the ball releasing groove 965. A magnetic sticker 966 for restraining the steel ball is fixedly mounted on the side wall of the ball receiving groove 964; A plurality of ball-changing grooves 967 are provided on the surface of the movable plate 962 and the skirt plate 963 on one side opposite to the arc groove 961 in the left-right direction. A plurality of triangular edges 968 for intercepting steel balls are fixedly installed on the surface of the movable plate 962 adjacent to the ball-receiving groove 964. The ball-changing grooves 967 correspond to the area between two adjacent triangular edges 968. When the inner cylinder 91 rotates clockwise, the steel balls inside are lifted along the left side thereof, and the steel balls that have shrunk due to wear are blocked by the triangular edges 968. Two grooves 969 are formed on the bottom wall of the arc groove 961, and a wedge block 9610 is fixedly connected to the groove 969 through a spring sheet, the inclined surface of the wedge block 9610 corresponds to the ball receiving groove 964, and the side plane of the wedge block 9610 corresponds to the ball releasing groove 965; A new steel ball is placed between the two wedge blocks 9610. When the collecting slot is opened, the old steel ball intercepted by the triangular edge 968 falls into the ball collecting slot 964 and is attracted by the magnetic patch 966. When the ball collecting slot 964 is closed, the movable plate 962 moves leftward so that the left skirt plate 963 is resisted and deflected by the old steel ball until the old steel ball reaches the ball changing slot 967. As the movable plate 962 moves rightward again, the old steel ball in the ball changing slot 967 is driven to move rightward synchronously, squeezing the first wedge block 9610 to reach between the two wedge blocks 9610, and pushing the new steel ball here to the right through the second wedge block 9610. Then the movable plate 962 moves leftward. Due to the anti-return effect of the wedge block 9610, the old steel ball and the new steel ball are kept in place, so that the new steel ball squeezes the right skirt plate 963 to reach the ball placing slot 965. When the ball placing slot 965 is located at the upper part of the inner cylinder 91, the new steel ball can fall into the inner cylinder 91. A releaser 9611 is provided in the movable plate 962 , the skirt plate 963 , the ball changing groove 967 and the arc groove 961 .

[0035] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9 As shown, 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 an annular rubber film 96112 is disposed inside the through hole 96111; A cutout 96113 is provided on the inner top wall of the ball changing groove 967 and the skirt 963, and a seesaw 96114 corresponding to the through hole 96111 is provided in the cutout 96113. The seesaw 96114 is connected to the inner wall of the cutout 96113 at its middle position, and a gap is left between the end of the seesaw 96114 relative to the ball placing groove 965 and the top wall of the cutout 96113. When the new steel ball squeezes the right skirt 963 to reach the ball placing groove 965, it contacts the seesaw 96114, pressing the seesaw 96114 to deflect, so that the end of the seesaw 96114 relative to the old steel ball is pressed toward the old steel ball, and squeezes the old steel ball through the rubber film 96112 and the through hole 96111 to fall into the cylinder 2.

[0036] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9 As shown, a sealing ring is fixedly installed inside the cylinder 2, and the sealing ring divides the internal processing area of ​​the cylinder 2 and the area where the gears are located, which can prevent the materials processed in the cylinder 2 from entering the operating area of ​​the driving gear 7 and the first and second gear rings 92 and 93 to cause interference.

[0037] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9 As shown, the skirt plate 963 is located on the side surface of the ball placing groove 965 and is provided with a steel curtain for intercepting materials. The steel curtain can only deflect to the outside but cannot deflect to the inside of the ball changing groove 967. When the inner cylinder 91 rotates so that the arc groove 961 is located on the lower side, the left skirt plate 963 and the ball receiving groove 964 are adsorbed and closed by the magnetic patch 966, and materials cannot enter. The steel curtain on the right skirt plate 963 can intercept materials to prevent them from entering the ball changing groove 967 and affecting the operation.

[0038] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figures 5 to 9 As shown, a ball cavity for accommodating new steel balls is opened inside the movable plate 962 along the front-to-back direction, 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. When the new steel ball in the ball changing groove 967 is released into the inner cylinder 91 and the old steel ball is released into the cylinder body 2, the new steel ball in the ball cavity can roll into the ball changing cavity for replenishment.

[0039] A method for using an efficient cement mill comprises the following steps: S1, the cylinder 2 and the inner cylinder 91 are filled with a number of steel balls for crushing and grinding materials. The steel balls in the inner cylinder 91 are larger and used for coarse grinding, and the steel balls in the cylinder 2 are smaller and used 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 primary gear ring 92 inside the cylinder 2 drives the secondary gear ring 93 and the inner cylinder 91 to rotate clockwise through the transmission gear 94. During this process, the material enters the inner cylinder 91 evenly from the feeding device. The rotation of the inner cylinder 91 generates centrifugal force to bring the steel balls to a certain height and then fall, which produces a heavy impact and grinding effect on the material. The coarse material that has been initially ground can enter the cylinder 2 along the leakage hole 95 on the inner cylinder 91, and then the corresponding steel balls are driven by the rotating cylinder 2 for further fine grinding. S2, when the inner cylinder 91 rotates clockwise, the steel balls inside the inner cylinder 91 are lifted along the left side thereof, and the steel balls that have shrunk due to wear are blocked by the triangular edge 968. The movable plate 962 rotates from the bottom of the inner cylinder 91 to the left side and slides along the arc groove 961 due to its own weight and the weight of the balls, that is, the movable plate 962 moves rightward to open the ball receiving groove 964. When the movable plate 962 reaches the right side through the upper part, the movable plate 962 moves leftward along the arc groove 961 due to its own weight to close the ball receiving groove 964 and open the ball releasing groove 965. S3, by the reciprocating left and right movement of the movable plate 962 along the arc groove 961, when the collecting groove is opened, the old steel ball intercepted by the triangular edge 968 falls into the ball collecting groove 964 and is sucked by the magnetic patch 966. When the ball collecting groove 964 is closed, the movable plate 962 moves leftward so that the left skirt plate 963 is resisted and deflected by the old steel ball until the old steel ball reaches the ball changing groove 967. As the movable plate 962 moves rightward again, the old steel ball in the ball changing groove 967 is driven to move rightward synchronously, squeezing the first wedge block 9610 to reach between the two wedge blocks 9610, and pushing the new steel ball here to the right through the second wedge block 9610, and then the movable plate 962 moves leftward. Due to the anti-return effect of the wedge block 9610, the old steel ball and the new steel ball are both retained in place, so that the new steel ball squeezes the right skirt plate 963 to reach the ball placing groove 965. When the ball placing groove 965 is located at the upper part of the inner cylinder 91, the new steel ball can fall into the inner cylinder 91. S4. When the new steel ball squeezes the right side skirt plate 963 to reach the ball placing groove 965, it contacts the seesaw 96114, pressing the seesaw 96114 to deflect, so that the seesaw 96114 is pressed toward the old steel ball at one end relative to the old steel ball, and squeezes the old steel ball through the rubber film 96112 and the through hole 96111 to fall into the cylinder 2.

[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A high-efficiency cement mill, comprising a base (1), wherein a cylinder (2) is arranged 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 provided 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; Two supports (5) are fixedly mounted on the top of the base (1); the barrel tail (4) is rotatably mounted on the rear support (5); and the barrel head (3) is fixedly mounted on the front support (5); A driving motor (6) is fixedly mounted on the base (1), and a driving gear (7) is arranged on the rotating shaft of the driving motor (6); a driving ring gear (8) is fixedly mounted on the outer ring of the cylinder (2), and the driving ring gear (8) and the driving gear (7) are meshed with each other; The cylinder body (2) and the cylinder head (3) are provided with a grinder (9).

2. A high-efficiency cement mill according to claim 1, characterized in that: The grinder (9) comprises an inner cylinder (91) movably arranged in the cylinder body (2), and the inner cylinder (91) is rotatably connected to the inner side of the cylinder head (3), and the feeding device feeds material into the inner cylinder (91); The inner ring of the cylinder (2) is fixedly mounted with a primary gear ring (92), the outer ring of the inner cylinder (91) is fixedly mounted 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) is meshed with the primary gear ring (92) and the secondary gear ring (93), and the primary gear ring (92) drives the secondary gear ring (93) to rotate via the transmission gear (94); Two groups of leakage holes (95) are provided on the surface of the inner cylinder (91), and the two groups of leakage holes (95) are arranged symmetrically along the inner cylinder (91); Two groups of ball changing assemblies (96) are arranged on the inner cylinder (91), and the two groups of ball changing assemblies (96) are arrayed on the upper and lower sides of the inner cylinder (91).

3. A high-efficiency cement mill according to claim 2, characterized in that: The ball-changing assembly (96) comprises an arc groove (961) formed on the inner wall of the inner tube (91), and a movable plate (962) is slidably connected in the arc groove (961), and elastic skirt plates (963) are fixedly connected to the left and right sides of the movable plate (962), and a blank area between the skirt plate (963) and the arc groove (961) is set as an extrusion groove; When the movable plate (962) moves to the left, a ball receiving groove (964) is formed by a gap between the left skirt plate (963) and the left side wall of the arc groove (961), and the groove width of the ball receiving groove (964) is smaller than the diameter of a qualified steel ball; when the movable plate (962) moves to the right, a ball placing groove (965) is formed by a gap between the right skirt plate (963) and the right side wall of the arc groove (961), and the groove width of the ball placing groove (965) is larger than the diameter of a qualified steel ball; A magnetic sticker (966) for restraining the steel ball is fixedly mounted on the side wall of the ball receiving groove (964); A plurality of ball-changing grooves (967) are provided on the surfaces of the movable plate (962) and the skirt plate (963) on one side opposite to the arc groove (961) in the left-right direction. A plurality of triangular edges (968) for intercepting steel balls are fixedly installed on the surface of the movable plate (962) adjacent to the ball-receiving groove (964). The ball-changing groove (967) corresponds to the area between two adjacent triangular edges (968). Two grooves (969) are formed on the bottom wall of the arc groove (961), and a wedge block (9610) is fixedly connected to the groove (969) via a spring sheet, the inclined surface of the wedge block (9610) corresponds to the ball receiving groove (964), and the side plane of the wedge block (9610) corresponds to the ball releasing groove (965); A new steel ball is placed between the two wedges (9610); A releaser (9611) is arranged in the movable plate (962), the skirt plate (963), the ball-changing groove (967) and the arc groove (961).

4. A high-efficiency cement mill according to claim 3, characterized in that: The releaser (9611) comprises a through hole (96111) formed on the bottom wall of the arc groove (961), and the through hole (96111) is located between the two wedge blocks (9610), and an annular rubber film (96112) is provided inside the through hole (96111); A cutout (96113) is provided on the inner top wall of the ball changing groove (967) and the skirt plate (963), and a seesaw (96114) corresponding to the through hole (96111) is provided in the cutout (96113), the seesaw (96114) is connected to the inner wall of the cutout (96113) at its middle position, and a gap is left between the end of the seesaw (96114) opposite to the ball placing groove (965) and the top wall of the cutout (96113).

5. A high-efficiency cement mill according to claim 2, 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) and the area where the gear is located.

6. A high-efficiency cement mill according to claim 4, characterized in that: The skirt plate (963) is located on the side surface of the ball placing trough (965) and is provided with a steel curtain for intercepting materials.

7. A high-efficiency cement mill according to claim 4, characterized in that: A ball cavity for accommodating a new steel ball is provided inside the movable plate (962) along the front-to-back direction, and the ball replacement groove (967) is communicated with the ball cavity, and the inner wall of the ball cavity is inclined toward the ball replacement groove (967).

8. The method for using a high-efficiency cement mill according to claim 1, comprising the following steps: S1, the cylinder (2) and the inner cylinder (91) are filled with a plurality of steel balls for crushing and grinding materials, wherein the steel balls in the inner cylinder (91) are larger and used for coarse grinding, and the steel balls in the cylinder (2) are smaller and used 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), and the primary gear ring (92) in the cylinder (2) drives the secondary gear ring (93) and the inner cylinder (91) to rotate clockwise through the transmission gear (94). During this process, the material enters the inner cylinder (91) uniformly from the feeding device, and the rotation of the inner cylinder (91) generates centrifugal force to bring the steel balls to a certain height and then fall, thereby hitting and grinding the material. The coarse material that has been initially ground can enter the cylinder (2) along the leakage hole (95) on the inner cylinder (91), and then the corresponding steel balls are driven by the rotating cylinder (2) to be further finely ground; 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 have shrunk due to wear are blocked by the triangular edge (968), and the movable plate (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 movable plate (962) moves rightward to open the ball receiving groove (964), and as the movable plate (962) reaches the right side through the upper part, the movable plate (962) moves leftward along the arc groove (961) due to its own weight to close the ball receiving groove (964) and open the ball releasing groove (965); S3, by the reciprocating left and right movement of the movable plate (962) along the arc groove (961), when the collecting groove 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 patch (966). When the ball collecting groove (964) is closed, the movable plate (962) moves leftward so that the left skirt plate (963) is resisted and deflected by the old steel ball until the old steel ball reaches the ball changing groove (967). As the movable plate (962) moves rightward again, the old steel ball in the ball changing groove (967) is driven to move in the same direction. The first wedge (9610) is moved rightward, and the first wedge (9610) is squeezed to reach between the two wedges (9610), and the new steel ball here is pushed to the right to pass through the second wedge (9610), and then the flap (962) is moved leftward. Due to the anti-return effect of the wedge (9610), the old steel ball and the new steel ball are retained in place, so that the new steel ball squeezes the right skirt (963) to reach the ball release groove (965). When the ball release groove (965) is located at the upper part of the inner cylinder (91), the new steel ball can fall into the inner cylinder (91); S4. When the new steel ball squeezes the right skirt plate (963) to reach the ball placing groove (965), it contacts the seesaw (96114), pressing the seesaw (96114) to deflect, so that the seesaw (96114) is pressed toward the old steel ball at one end relative to the old steel ball, and squeezes the old steel ball through the rubber film (96112) and the through hole (96111) to fall into the cylinder (2).

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