A five-roller vertical mill

Abstract

The invention discloses a five-roller vertical mill, and relates to the technical field of vertical mills. A motor is installed on a frame, the motor is connected to the shaft of a reducer through a main coupling, the output shaft of the reducer is connected to a grinding disc, five roller devices are respectively hinged on the frame, and the adjustment legs of the five roller devices are respectively hinged to the upper ends of piston rods of five oil cylinders, the lower ends of the five oil cylinders are installed on the frame, a vertical mill cavity is installed on the upper end of the frame, a spiral conveyor is installed on the lower side of the vertical mill cavity, and a discharge port of the spiral conveyor corresponds to the center position of the grinding disc, a grading device is installed on the upper end of the vertical mill cavity, a discharge port is connected to the upper end of the grading device, and a plurality of grading wheel devices are installed on the grading device. The invention can realize automatic and rapid grinding, and can achieve the collection and production of ultrafine powdery materials. It is easy to use, and is convenient for accurate control, and can improve the overall efficiency.

Description

Technical Field

[0001] The invention belongs to the technical field of vertical mills, and in particular relates to a five-roller vertical mill. Background Art

[0002] The existing vertical mill has a complex structure and poor stability when grinding materials. It is easy to produce coarse particles during grinding, resulting in poor product quality. Summary of the invention

[0003] In order to solve the problems that the existing vertical mill has a complex structure, poor stability when grinding materials, and easy generation of coarse particles during grinding, resulting in poor product quality; the purpose of the present invention is to provide a five-roller vertical mill.

[0004] A five-roller vertical mill of the present invention comprises a motor 1, a reducer, a grinding disc, a spiral conveyor, an oil cylinder, a frame, a roller device, a vertical mill cavity, a motor 2, a grading device, a discharge port, and a main coupling; the frame is equipped with a motor 1, the motor 1 is connected to the shaft of the reducer through the main coupling, the output shaft of the reducer is connected to the grinding disc, five roller devices are respectively hinged on the frame, and the adjustment legs of the five roller devices are respectively hinged to the upper ends of the piston rods of the five oil cylinders, the lower ends of the five oil cylinders are installed on the frame, the upper end of the frame is equipped with a vertical mill cavity, the spiral conveyor is installed on the lower side of the vertical mill cavity, and the discharge port of the spiral conveyor corresponds to the center position of the grinding disc, the upper end of the vertical mill cavity is equipped with a grading device, the upper end of the grading device is connected with the discharge port, a number of grading wheel devices are installed on the grading device, and a number of motors 2 are connected to the grading wheel devices, and a number of motors 2 are installed on the outer side wall of the vertical mill cavity.

[0005] Preferably, the grinding wheel comprises a grinding wheel shell, a wear-resistant lining, a pressure plate, an upper fixed block and a turntable fixed block; a turntable fixed block is installed at the bottom of the grinding wheel shell, a wear-resistant lining is arranged on the upper side of the grinding wheel shell, the pressure plate installs the wear-resistant lining on the grinding wheel shell, and an upper fixed block is installed at the upper end of the grinding wheel shell.

[0006] Preferably, the screw conveyor includes a conveyor housing, a main shaft 1, a right sealing seat, a left sealing seat, a bearing 1, a bearing 2, a coupling 1, and a motor 3; bearing 1 and bearing 2 are respectively installed at both ends of the conveyor housing, bearing 1 and bearing 2 are respectively installed on the inner rings of bearing 1 and bearing 2 at both ends of the main shaft 1, the right sealing seat and the left sealing seat are respectively installed on the right side and left side of the main shaft 1, and the left end of the main shaft 1 is connected to the shaft of motor 3 through coupling 1.

[0007] Preferably, the oil cylinder comprises a rear cover of the oil hydraulic cylinder, a housing of the oil hydraulic cylinder, a piston, a front cover of the oil hydraulic cylinder, a second main shaft, a second coupling, a small connecting rod, a oil hydraulic cylinder seat, a third bearing and a fourth bearing; the rear cover of the oil hydraulic cylinder is connected to the bottom of the housing of the oil hydraulic cylinder by bolts, the rear cover of the oil hydraulic cylinder is installed on the oil hydraulic cylinder seat through the third bearing and the shaft, the piston is movably connected to the inside of the housing of the oil hydraulic cylinder, the lower end of the second main shaft of the piston is connected, the second main shaft is movably connected to the front cover of the oil hydraulic cylinder, the front cover of the oil hydraulic cylinder is connected to the upper end of the housing of the oil hydraulic cylinder by bolts, the upper end of the second main shaft is connected to the small connecting rod through a coupling, and the small connecting rod is installed with the fourth bearing.

[0008] Preferably, the frame includes support base 1, support base 2, support base 3, reducer base, motor base and lower base; support base 1, support base 2 and support base 3 form an integral frame, the bottom of the integral frame is installed with the lower base, the integral frame is respectively installed with the reducer base and the motor base, and the reducer base and the motor base are respectively installed with the motor 1 and the reducer.

[0009] Preferably, the roller device comprises a roller housing, an air seal cover, a main shaft three, a bearing five, a roller, a pressure cover, and an oil seal cover plate; the main shaft three is installed inside the roller housing, the bearing five is installed on one side of the main shaft, the roller is installed on the outer end of the bearing five, the pressure cover is installed on the outer end of the roller, the oil seal cover plate is installed on the left side of the roller, the air seal cover is arranged on the outer side of the oil seal cover plate, and the air seal cover is installed on the side wall of the roller.

[0010] Preferably, the grading device comprises a grading shell, a safety shield, a bearing box, a wear ring, a sleeve, a motor seat group, and a grading wheel device; a safety shield is installed on the outside of the grading shell, and several classifiers are respectively installed in the mounting groove of the grading shell, a bearing box is installed in the mounting groove, a wear ring and a sleeve are installed on the outer side wall of the classifier, and the motor seat group is installed on the outer side wall of the grading shell; the classifier comprises a bearing seat, a bearing five, a right cover plate, a left cover plate, a main shaft four, a grading wheel, a sleeve, and a pulley; bearings five are respectively installed at both ends of the bearing seat, the main shaft four is respectively installed on the inner ring of the bearing five, a pulley is installed on the left end of the main shaft five, a grading wheel is installed on the right end of the main shaft five, a sleeve is sleeved on the right side of the main shaft five, and the right cover plate and the left cover plate are respectively installed on the right end face and the left end face of the bearing seat.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. It can realize automatic and rapid grinding, and can collect and produce ultra-fine powder materials;

[0013] Second, it is easy to use and easy to accurately control, which can improve overall efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] For ease of explanation, the present invention is described in detail with reference to the following specific implementations and the accompanying drawings.

[0015] Figure 1 It is a structural schematic diagram of the present invention;

[0016] Figure 2 It is a structural schematic diagram of the grinding disc in the present invention;

[0017] Figure 3 It is a structural schematic diagram of the screw conveyor in the present invention;

[0018] Figure 4 It is a structural schematic diagram of the oil cylinder in the present invention;

[0019] Figure 5 It is a structural schematic diagram of the frame in the present invention;

[0020] Figure 6 It is an inner view of the frame in the present invention;

[0021] Figure 7 It is a structural schematic diagram of the roller device in the present invention;

[0022] Figure 8 It is a structural schematic diagram of the neutral mill cavity of the present invention;

[0023] Fig. 9 It is a structural schematic diagram of the grading device in the present invention;

[0024] Fig.10 is an internal view of the grading device of the present invention;

[0025] Fig.11 It is a structural schematic diagram of the classifying wheel device in the present invention.

[0026] In the figure: 1-motor 1; 2-reducer; 3-grinding disc; 4-screw conveyor; 5-oil cylinder; 6-frame; 7-roller device; 8-vertical mill cavity; 9-motor 2; 10-classifying device; 11-discharging port; 12-main coupling;

[0027] 31- grinding disc shell; 32- wear-resistant lining plate; 33- pressing plate; 34- upper fixing block; 35- turntable fixing block;

[0028] 41- conveyor housing; 42- spindle 1; 43- right sealing seat; 44- left sealing seat; 45- bearing 1; 46- bearing 2; 47- coupling 1; 48- motor 3;

[0029] 71-roller housing; 72-gas seal cover; 73-spindle three; 74-bearing five; 75-roller; 76-pressure cover; 77-oil seal cover plate;

[0030] 101-grading housing; 102-safety shield; 103-bearing box; 104-wear ring; 105-sleeve; 106-motor seat assembly; 107-grading wheel device; 1071-bearing seat; 1072-bearing five; 1073-right cover plate; 1074-left cover plate; 1075-spindle four; 1076-grading wheel; 1077-sleeve; 1078-pulley. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the present invention clearer, the present invention is described below by the specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present invention. The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions that the present invention can be implemented, so they have no technical substantive significance. Any structural modification, change in proportional relationship or adjustment of size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope of the technical content disclosed by the present invention. In addition, in the following description, the description of known structures and technologies is omitted to avoid unnecessary confusion of the concept of the present invention.

[0032] It should also be noted that, in order to avoid obscuring the present invention due to unnecessary details, only structures and / or processing steps closely related to the solutions according to the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0033] like Figure 1 , Figure 8 As shown, this specific implementation adopts the following technical scheme: including motor 1, reducer 2, grinding disc 3, screw conveyor 4, oil cylinder 5, frame 6, roller device 7, vertical mill cavity 8, motor 2 9, grading device 10, discharge port 11, main coupling 12; motor 1 is installed on the frame 6, motor 1 is connected to the shaft of reducer 2 through the main coupling 12, the output shaft of reducer 2 is connected to the grinding disc 3, five roller devices 7 are respectively hinged on the frame 6, and the adjustment feet of the five roller devices 7 are respectively connected to the movable parts of the five oil cylinders 5. The upper end of the plug rod is hinged, the lower ends of the five oil cylinders 5 are installed on the frame 6, the upper end of the frame 6 is installed with a vertical mill cavity 8, the screw conveyor 4 is installed on the lower side of the vertical mill cavity 8, and the discharge port of the screw conveyor 4 corresponds to the center position of the grinding disc 3, and a grading device 10 is installed at the upper end of the vertical mill cavity 8. The upper end of the grading device 10 is connected with a discharge port 11, and several grading wheel devices are installed on the grading device 10, and several motors 9 are connected to the grading wheel devices, and several motors 9 are installed on the outer side wall of the vertical mill cavity 8.

[0034] like Figure 2As shown, further, the grinding disc 3 includes a grinding disc shell 31, a wear-resistant lining 32, a pressure plate 33, an upper fixed block 34, and a turntable fixed block 35; the turntable fixed block 35 is installed at the bottom of the grinding disc shell 31, the wear-resistant lining 32 is arranged on the upper side of the grinding disc shell 31, the pressure plate 33 installs the wear-resistant lining 32 on the grinding disc shell 31, and the upper fixed block 34 is installed at the upper end of the grinding disc shell 31.

[0035] like Figure 3 As shown, further, the screw conveyor 4 includes a conveyor housing 41, a main shaft 42, a right sealing seat 43, a left sealing seat 44, a bearing 45, a bearing 46, a coupling 47, and a motor 48; bearings 1 45 and bearings 2 46 are respectively installed at both ends of the conveyor housing 41, and bearings 1 45 and bearings 2 46 are respectively installed on the inner rings of bearings 1 45 and bearings 2 46 at both ends of the main shaft 42, the right sealing seat 43 and the left sealing seat 44 are respectively installed on the right side and the left side of the main shaft 42, and the left end of the main shaft 42 is connected to the shaft of the motor 3 48 through a coupling 47.

[0036] like Figure 4 As shown, further, the oil cylinder 5 includes an oil cylinder rear cover 51, an oil cylinder housing 52, a piston 53, an oil cylinder front cover 54, a second main shaft 55, a second coupling 56, a small connecting rod 57, an oil cylinder seat 58, a third bearing 59, and a fourth bearing 510; the oil cylinder rear cover 51 is connected to the bottom of the oil cylinder housing 52 by bolts, the oil cylinder rear cover 51 is installed on the oil cylinder seat 58 through the third bearing 59 and the shaft, the piston 53 is movably connected to the inside of the oil cylinder housing 52, the lower end of the second main shaft 55 of the piston 53 is connected, the second main shaft 55 is movably connected to the oil cylinder front cover 54, the oil cylinder front cover 54 is connected to the upper end of the oil cylinder housing 52 by bolts, the upper end of the second main shaft 55 is connected to the small connecting rod 57 through the coupling 56, and the small connecting rod 57 is installed with the fourth bearing 510.

[0037] like Figure 5 , Figure 6 Furthermore, the frame 6 includes a support base 1 61, a support base 2 62, a support base 3 63, a reducer base 64, a motor base 65, and a lower base 66; the support base 1 61, the support base 2 62, and the support base 3 63 form an integral frame, a lower base 66 is installed at the bottom of the integral frame, a reducer base 64 and a motor base 65 are respectively installed on the integral frame, and a motor 1 and a reducer 2 are respectively installed on the reducer base 64 and the motor base 65.

[0038] like Figure 7As shown, further, the roller device 7 includes a roller housing 71, an air seal cover 72, a main shaft 73, a bearing 5 74, a roller 75, a pressure cover 76, and an oil seal cover plate 77; the main shaft 73 is installed inside the roller housing 71, the bearing 5 74 is installed on one side of the main shaft 73, the roller 75 is installed on the outer end of the bearing 5 74, the pressure cover 76 is installed on the outer end of the roller 75, the oil seal cover plate 77 is installed on the left side of the roller 75, the air seal cover 72 is arranged on the outer side of the oil seal cover plate 77, and the air seal cover 72 is installed on the side wall of the roller 75.

[0039] like Fig. 9 , Fig.10 , Fig.11 As shown, further, the grading device 10 includes a grading shell 101, a safety shield 102, a bearing box 103, a wear ring 104, a sleeve 105, a motor seat group 106, and a grading wheel device 107; the safety shield 102 is installed on the outside of the grading shell 101, and several classifiers 107 are respectively installed in the installation grooves of the grading shell 101, and the bearing box 103 is installed in the installation groove. The wear ring 104 and the sleeve 105 are installed on the outer side wall of the classifier 107, and the motor seat group 106 is installed on the outer side wall of the grading shell 101. The classifier 107 includes a bearing seat 1071, a shaft Bearing five 1072, right cover plate 1073, left cover plate 1074, main shaft four 1075, grading wheel 1076, bushing 1077, pulley 1078; bearing five 1072 are respectively installed on both ends of the bearing seat 1071, main shaft four 1075 are respectively installed on the inner ring of bearing five 1072, pulley 1078 is installed on the left end of main shaft five 1072, grading wheel 1076 is installed on the right end of main shaft five 1072, bushing 1077 is sleeved on the right side of main shaft five 1072, right cover plate 1073 and left cover plate 1074 are respectively installed on the right end face and left end face of the bearing seat 1071.

[0040] The working principle of this specific implementation is: the motor 1 drives the reducer 2 to run slowly through the main coupling, the grinding disc 3 installed on the reducer 2 rotates slowly, and the granular material enters the vertical mill cavity 8 through the screw conveyor 4, falls into the groove of the grinding disc 3 and rotates together.

[0041] Five sets of oil cylinders 5 are all fixed at the lower part of the frame 6. The hydraulic box controls the oil cylinders to perform telescopic movements, and at the same time pulls five sets of roller devices 7. The roller device 7 is designed with a lever principle. The fulcrum is fixed on the top of the frame 6, and the roller extends into the vertical mill cavity 8. When the oil cylinder 5 performs telescopic movements, the roller device 7 is lifted or pressed down accordingly. It is in a downward pressing state during normal operation. At this time, when a certain thickness of granular material layer is formed at the groove of the grinding disc 3, it slowly contacts the roller of the roller device 7, and the roller of the roller device 7 rotates with the friction force. Under the reasonable pressure provided by the hydraulic system, the rotating material layer particles are slowly ground and crushed by the rollers to produce fine particles and powder. The ultrafine powder will slowly fill the entire vertical mill cavity 8.

[0042] The grading device is fixed on the upper part of the vertical mill cavity 8, and several grading devices 10 are evenly distributed on the circumference. The impeller in the grading device 10 is driven to rotate at high speed by motor 2. The discharge port 11 is connected to the external equipment through the air duct, and the external equipment provides an airflow with a certain negative pressure.

[0043] The airflow penetrates the rotating impeller of the classifying device 10, and takes the gas and powdery materials in the vertical mill cavity 8 away through the discharge port 11 to the next set of equipment for collection and treatment, and can operate continuously to form continuous production, so as to achieve the collection and production of ultra-fine powdery materials.

[0044] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be considered exemplary and non-restrictive in all respects, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention.

[0045] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A five-roller vertical mill, characterized in that: It includes motor 1, reducer, grinding disc, screw conveyor, oil cylinder, frame, roller device, vertical mill cavity, motor 2, grading device, discharge port and main coupling; motor 1 is installed on the frame, motor 1 is connected to the shaft of reducer through the main coupling, the output shaft of reducer is connected to the grinding disc, five roller devices are respectively hinged on the frame, and the adjustment feet of five roller devices are respectively hinged to the upper ends of piston rods of five oil cylinders, the lower ends of five oil cylinders are installed on the frame, the upper end of the frame is installed with the vertical mill cavity, the screw conveyor is installed on the lower side of the vertical mill cavity, and the discharge port of the screw conveyor is at the center of the grinding disc. Correspondingly, a grading device is installed at the upper end of the vertical mill cavity, and a discharge port is connected to the upper end of the grading device. Several grading wheel devices are installed on the grading device, and several motors 2 are connected to the grading wheel devices, and several motors 2 are installed on the outer side wall of the vertical mill cavity; the grading device includes a grading shell, a safety shield, a bearing box, a wear ring, a sleeve, a motor seat group, and a grading wheel device; a safety shield is installed on the outer side of the grading shell, and several classifiers are respectively installed in the mounting grooves of the grading shell, and the bearing box is installed in the mounting groove. The wear ring and the sleeve are installed on the outer side wall of the classifier, and the motor seat group is installed on the outer side wall of the grading shell. The classifier includes a bearing seat, a bearing five, a right cover plate, a left cover plate, a main shaft four, a grading wheel, a sleeve, and a pulley; the two ends of the bearing seat are respectively installed with bearings five, the main shaft four is respectively installed on the inner ring of the bearing five, the left end of the main shaft five is installed with a pulley, the right end of the main shaft five is installed with a grading wheel, the right side of the main shaft five is sleeved with a sleeve, and the right cover plate and the left cover plate are respectively installed on the right end face and the left end face of the bearing seat; the grinding disc includes a grinding disc shell, a wear-resistant lining, a pressure plate, an upper fixing block, and a turntable fixing block; the turntable fixing block is installed at the bottom of the grinding disc shell, and a wear-resistant lining is provided on the upper side of the grinding disc shell, and the pressure plate installs the wear-resistant lining on the outside of the grinding disc The oil cylinder comprises a rear cover of the oil hydraulic cylinder, an outer shell of the oil hydraulic cylinder, a piston, a front cover of the oil hydraulic cylinder, a second main shaft, a second coupling, a small connecting rod, an oil hydraulic cylinder seat, a third bearing and a fourth bearing; the rear cover of the oil hydraulic cylinder is connected to the bottom of the outer shell of the oil hydraulic cylinder by bolts, the rear cover of the oil hydraulic cylinder is installed on the oil hydraulic cylinder seat through the third bearing and the shaft, the piston is movably connected to the inside of the outer shell of the oil hydraulic cylinder, the lower end of the second main shaft of the piston is connected, the second main shaft is movably connected to the front cover of the oil hydraulic cylinder, the front cover of the oil hydraulic cylinder is connected to the upper end of the outer shell of the oil hydraulic cylinder by bolts, the upper end of the second main shaft is connected to the small connecting rod through the coupling, and the small connecting rod is equipped with the fourth bearing.

2. A five-roller vertical mill according to claim 1, characterized in that: The screw conveyor includes a conveyor housing, a main shaft 1, a right sealing seat, a left sealing seat, a bearing 1, a bearing 2, a coupling 1, and a motor 3; bearing 1 and bearing 2 are respectively installed at the two ends of the conveyor housing, and the inner rings of bearing 1 and bearing 2 are respectively installed at the two ends of the main shaft 1. The right sealing seat and the left sealing seat are respectively installed on the right side and the left side of the main shaft 1, and the left end of the main shaft 1 is connected to the shaft of the motor 3 through the coupling 1.

3. The five-roller vertical mill according to claim 1, characterized in that: The frame includes support base 1, support base 2, support base 3, reducer base, motor base, and lower base; support base 1, support base 2, and support base 3 form an integral frame, the bottom of the integral frame is installed with the lower base, the integral frame is respectively installed with the reducer base and the motor base, and the reducer base and the motor base are respectively installed with the motor 1 and the reducer.

4. The five-roller vertical mill according to claim 1, characterized in that: The roller device includes a roller shell, an air seal cover, a main shaft three, a bearing five, a roller, a pressure cover, and an oil seal cover plate; the main shaft three is installed inside the roller shell, the bearing five is installed on one side of the main shaft, the roller is installed on the outer end of the bearing five, the pressure cover is installed on the outer end of the roller, the oil seal cover plate is installed on the left side of the roller, the air seal cover is arranged on the outer side of the oil seal cover plate, and the air seal cover is installed on the side wall of the roller.

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