CN116532200A - Cement clinker manufacturing process - Google Patents
Cement clinker manufacturing process Download PDFInfo
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- CN116532200A CN116532200A CN202310375820.8A CN202310375820A CN116532200A CN 116532200 A CN116532200 A CN 116532200A CN 202310375820 A CN202310375820 A CN 202310375820A CN 116532200 A CN116532200 A CN 116532200A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 27
- 239000004568 cement Substances 0.000 title claims abstract description 24
- 238000000227 grinding Methods 0.000 claims abstract description 185
- 239000000463 material Substances 0.000 claims abstract description 30
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 10
- 239000000843 powder Substances 0.000 claims abstract description 9
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 20
- 230000005540 biological transmission Effects 0.000 claims description 17
- 239000000428 dust Substances 0.000 claims description 16
- 230000009471 action Effects 0.000 claims description 15
- 238000011084 recovery Methods 0.000 claims description 12
- 230000009467 reduction Effects 0.000 claims description 11
- 238000003801 milling Methods 0.000 claims description 7
- 230000009977 dual effect Effects 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 4
- 230000002457 bidirectional effect Effects 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 3
- 238000005096 rolling process Methods 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000007547 defect Effects 0.000 abstract 1
- 230000035882 stress Effects 0.000 abstract 1
- 239000003638 chemical reducing agent Substances 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000897 Babbitt (metal) Inorganic materials 0.000 description 1
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C2015/008—Roller drive arrangements
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention provides a cement clinker manufacturing process, which belongs to the technical field of cement manufacturing processes, and overcomes the technical defects of large stress and easy aging of a millstone in the existing roller grinding process, wherein the manufacturing process comprises the following steps: s1, starting: the direct-drive motor rotates bidirectionally; s2, feeding: feeding the material to the middle position of the upper part of the millstone; s3, roller grinding: the grinding disc and the grinding wheel rotate in opposite directions by strong force, the roller grinding material is rapidly crushed and agglomerated under the double impact of the double driving strong power of the grinding wheel and the grinding disc, slides from the middle of the grinding disc to the peripheral edge and is rolled into powder; s4, discharging: the process of the invention is characterized in that the grinding disc and the rolling wheel are mutually reversely rotated by strong force to act on the roller grinding material, thereby improving the rolling effect and the efficiency; the pressure on the grinding disc is reduced, the service life of the grinding disc is prolonged, and the production cost is reduced; the conveying efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of cement manufacturing processes, and particularly relates to a cement clinker manufacturing process.
Background
The vertical roller mill is mainly composed of powder selecting machine (separator), grinding wheel, grinding disk, pressurizing device, speed reducer, motor, machine frame and shell. At present, the vertical mill forms of manufacturers in the world are different, such as an L/M mill produced by Leisha in Germany, a UBE mill produced by UBE company in Japan, an Atox mill produced by FLS company in Denmark, an RM mill produced by KHD flood company and an MPS mill produced by Pfeiffer company, and the main differences are that the structural combinations of the rolling wheel and the grinding disc are different. The vertical mill speed reducer installed on the machine body adopts a special vertical speed reducer, adopts a vertical mill structure of the vertical speed reducer, the grinding disc device is directly placed on an output flange of the vertical mill speed reducer, the output flange is generally connected with the bottom of the grinding disc through bolts, and a plurality of positioning pins are used for transmitting torque. The vertical mill of the above-described construction has the following disadvantages:
1. the vertical speed reducer changes the transmission direction through a planetary gear, a cylindrical gear pair and a spiral bevel gear pair, and transmits the power of a main motor which is horizontally arranged to a grinding disc which is vertically arranged to drive the grinding disc to rotate, so that the grinding purpose is achieved. The bevel gear pair is made of spiral teeth, generally made of clinopodium-bellger teeth, the tooth profile curve of the bevel gear is involute, the tooth height of the bevel gear is equal-height teeth, the bevel gear pair is favorable for heavy-duty transmission, has the advantages of bearing stronger overload and impact capacity, low requirement on assembly precision, low error sensitivity and the like, but special gear processing equipment is needed, only small modulus (m is less than or equal to 20 mm) and small pitch circle (not more than 1000 mm) clinopodium-bellger teeth can be processed in China at present, and the requirements of large and medium-sized vertical mill speed reducers cannot be met, so that the bevel gear pair is generally processed abroad, and has long delivery cycle and high price.
2. Because the millstone of the mill is directly placed on the output flange of the vertical mill speed reducer, the output flange bears the weight of the millstone and the milling pressure, and therefore, a special thrust bearing is arranged at the lower end of the output flange so as to absorb the high axial load generated in the milling process. The thrust sliding bearing has higher technical content, the bearing material requires good emergency running-in performance, corrosion resistance and higher static-dynamic pressure intensity, the bearing bush is designed into a sector block, the sector block is a casting piece, the bush body is carbon steel, the surface alloy layer is Babbitt alloy, and the bearing bush is manufactured by domestic professional manufacturers. The thrust sliding bearing needs to supply the same amount of oil to each bearing bush by using a high-pressure oil pump to form an oil film with certain thickness, but a large amount of heat generated by friction power consumption also needs to provide new oil for cooling, so that the new oil is provided by an oil injection pipe arranged between the bearing bushes, and the position of oil spilling is required to be higher than that of a sliding surface, thus requiring a complicated lubrication and cooling system, safety and reliability and increasing cost.
3. Because the vertical speed reducer has a complex structure and high failure rate, the grinding stopping time is increased, thereby increasing the use and maintenance cost of equipment and reducing the production efficiency. The static pressure thrust bearing bears the milling pressure, absorbs the high axial load generated in the milling process, screens out iron filings, iron slag or hard impurities which are easy to impact, so as to avoid impact, and the pressurization of the static pressure thrust bearing is not too high, and the rolling pressure is 14MPa generally, so that the milling force of the homotype vertical mill is lower.
In the Chinese patent literature, CN100563835C is disclosed as 2009.12.02 days, and the patent literature is named as a vertical roller mill, the technical scheme that the bottom of the millstone device is provided with the rotary guide rail and supported on the machine body is adopted, and the centering structure is combined to form a novel vertical mill structure with a compact structure. Through calculation, compared with a vertical speed reducer, the method can save about 20-30% of one-time investment, and can be widely applied to cement grinding, slag grinding and cinder grinding processing.
However, in the above structure, a complex tooth meshing structure is arranged under the turntable, a high load loaded on the rolling wheel can act on the grinding disc, and in order to increase the pressure of rolling objects on the rolling wheel, a hydraulic press is additionally arranged on the rolling wheel for pressurizing, and the pressures can finally act on the grinding disc, so that the grinding disc bears huge pressure and can generate deformation and accelerated aging, and a new process method is provided for reducing the pressure on the grinding disc and improving the rolling effect, which is a technical problem to be solved.
Disclosure of Invention
The purpose of the invention is that: provides a cement clinker manufacturing process to solve the technical problems in the prior art.
According to the above purpose, the basic technical scheme of the invention is as follows: the cement clinker manufacturing process comprises a roller mill, wherein a grinding disc, a grinding wheel and a direct-drive motor are arranged in the roller mill, the grinding disc is rotatably supported on a machine body, a closed transmission box is formed between the machine body and the grinding disc, and the direct-drive motor drives the grinding disc and the grinding wheel to rotate through the reduction of the transmission box, and the cement clinker manufacturing process is characterized in that: the manufacturing process of the cement clinker in the roller mill comprises the following steps: s1, starting: switching on a power supply control box to switch on a power supply of a direct-drive motor, wherein the direct-drive motor rotates bidirectionally, and the direct-drive motor drives a speed reducing mechanism in a transmission box to drive a grinding disc and a grinding wheel to rotate; s2, feeding: starting a feeder to feed the material to be rolled in the middle feeding pipe at the upper part of the millstone to the middle position at the upper part of the millstone; s3, roller grinding: the grinding disc and the grinding wheel rotate reversely and forcefully, the grinding wheel revolves around the rotation axis of the grinding disc on the grinding disc while rotating on the grinding disc, the roller grinding material is rapidly crushed and agglomerated under the double impact action of the dual driving forceful power of the grinding wheel and the grinding disc, the crushed and agglomerated roller grinding material slides from the middle of the grinding disc to the peripheral edge under the action of gravity and extrusion force, and the crushed and agglomerated roller grinding material on the periphery of the upper surface of the grinding disc is crushed and agglomerated into powder under the continuous and mutually reverse impact action of the grinding wheel and the grinding disc; s4, discharging: the roller mill material which is rolled into powder at the edge of the upper surface of the grinding disc is rolled into the dust recovery device under the action of the fan.
Further, in the step S1, the bidirectional rotation means that after the direct-drive motor rotates forward for a certain time, the direct-drive motor stops slightly and rotates reversely for a certain time, and the process is repeated repeatedly while stopping again; the internal speed reducing mechanism of the transmission case is a double-drive speed reducing mechanism, an output shaft and an output shaft sleeve are arranged at the output end of the double-drive speed reducing mechanism, the output shaft sleeve is concentrically and rotatably arranged outside the output shaft, the output shaft is connected with a grinding wheel, and the output shaft sleeve is connected with a grinding disc.
Further, the double-drive speed reducing mechanism is a double-drive double-sleeve planetary gear speed reducing mechanism and comprises a fixing frame fixedly arranged on a machine body, a planetary gear is rotatably arranged on the fixing frame, the inner side of the planetary gear is meshed with a central gear, the outer side of the planetary gear is meshed with the lower half part of an inner gear ring slidably arranged on the machine body, the upper end of the inner gear ring is connected with an output shaft sleeve through a transmission disc, the upper half part of the inner gear ring is also meshed with the planetary gear, the planetary gear is movably arranged on a planetary carrier, the inner side of the planetary gear is meshed with a motor shaft gear, the motor shaft gear is in direct connection with a motor shaft of a direct drive motor, the upper end of the planetary carrier is connected with an output shaft, and the lower end of the planetary carrier is meshed with the central gear.
Furthermore, a bearing is arranged between the motor shaft of the direct-drive motor and the machine body.
Furthermore, a bearing is arranged between the output shaft and the output shaft sleeve.
Furthermore, a driving disc is arranged between the output shaft and the rolling wheels, the driving disc is movably connected with the rolling wheels, the output shaft is movably connected with the driving disc, the number of the rolling wheels is 2 or more, and the rolling wheels are uniformly distributed on the surface of the grinding disc.
Further, in the step S3, the upper surface of the grinding disc is inclined with the inner side being high and the outer side being low, the rolling wheel is tapered with the inner side being small and the outer side being large, when the rolling wheel rotates on the grinding disc, the revolution axis of the rolling wheel and the rotation axis of the grinding disc are on the same straight line, the surface of the grinding disc is provided with a V groove, the V groove is concaved in a triangle shape, the V groove is uniformly distributed on the surface of the grinding disc in a circular conical surface circumference, and two ends of the V groove are kept at a distance from the inner edge and the outer edge of the upper surface of the grinding disc and are distributed in an annular radial interval.
Further, the grinding disc rotates on a guide rail arranged on the machine body through guide wheels arranged below the grinding disc, and the guide wheels are provided with 3 or more than 3 grinding wheels, so that the supporting force is balanced.
Further, in the step S4, the dust recovery device is disposed at a lower side of an outer periphery of the grinding disc, the fan is mounted at an upper side of the outer periphery of the grinding disc, and the fan drives the milled dust on the grinding disc to rotate and enter the dust recovery device.
Compared with the prior art, the invention has the advantages and beneficial effects that:
1. the process of the invention can forcefully opposite-rub and rotate by the mutual reverse directions of the millstone and the rolling wheel to act on the roller grinding material, thereby improving the roller grinding effect and the efficiency;
2. in the process, the double-drive speed reducing mechanism is used for reducing the speed for driving, the power obtained on the grinding disc and the grinding wheel is strong, a pressurizing device for the grinding wheel is omitted, the pressure on the grinding disc is reduced, the service life of the grinding disc is prolonged, and the production cost is reduced;
3. the grinding disc in the process adopts the inclined surface, and the grinding material slides to the periphery under the action of gravity, so that the self-updating speed of the material is accelerated, and the conveying efficiency is improved;
4. according to the process disclosed by the invention, the grinding disc slides through the V-shaped groove, so that radial slip of materials on the grinding disc can be prevented, and the grinding efficiency is improved.
Drawings
FIG. 1 is a schematic diagram of the principle and structure of an embodiment of the product of the present invention;
FIG. 2 is a schematic top plan view of the upper surface of the abrasive disc according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the principle structure of a dual-drive reduction mechanism according to an embodiment of the present invention;
in the figure: 1. grinding disc; 2. a rolling wheel; 3. a drive plate; 4. an output shaft; 5. an output shaft sleeve; 6. a dual drive reduction mechanism; 7. a body; 8. a direct drive motor; 9. a guide rail; 10. a guide wheel; a v groove; 12. a bearing; 13. a dust recovery device; 61. a motor shaft gear; 62. an inner gear ring; 63. a drive plate; 64. a row rack; 65. a planetary gear; 66. a fixing frame; 67. a sun gear.
Detailed Description
Referring to fig. 1-3, a schematic structural diagram of an embodiment of a cement clinker manufacturing process according to the present invention includes a roller mill, in which a grinding disc 1, a grinding wheel 2 and a direct drive motor 8 are disposed, the grinding disc 1 is rotatably supported on a machine body 7, a sealed transmission case is formed between the machine body 7 and the grinding disc 1, the direct drive motor 8 drives the grinding disc 1 and the grinding wheel 2 to rotate by decelerating through the transmission case, and the cement clinker manufacturing process in the roller mill includes the following steps: s1, starting: the power supply control box is turned on, the power supply of the direct-drive motor 8 is turned on, the direct-drive motor 8 rotates bidirectionally, and the direct-drive motor 8 drives the reduction mechanism in the transmission box to drive the grinding disc 1 and the grinding wheel 2 to rotate; s2, feeding: starting a feeder to feed the material to be rolled in the middle feeding pipe at the upper part of the millstone 1 to the middle position at the upper part of the millstone 1; s3, roller grinding: the grinding disc 1 and the grinding wheel 2 rotate reversely and forcefully, the grinding wheel 2 rotates on the grinding disc 1 and revolves around the rotation axis of the grinding disc 1, the grinding material is rapidly crushed and agglomerated under the double impact action of the double driving forceful power of the grinding wheel 2 and the grinding disc 1, the crushed and agglomerated grinding material slides from the middle of the grinding disc 1 to the peripheral edge under the action of gravity and extrusion force, and the crushed and agglomerated grinding material on the periphery of the upper surface of the grinding disc 1 is ground into powder under the continuous reverse impact action of the grinding wheel 2 and the grinding disc 1; s4, discharging: the roller grinding material which is ground into powder at the edge of the upper surface of the grinding disc 1 is rolled into the dust recovery device 13 under the action of a fan.
Preferably, in the step S1, the bidirectional rotation means that after the direct-drive motor 8 rotates forward for a certain time, the direct-drive motor is stopped slightly, then rotated reversely for a certain time, and the above process is repeated again and again under the condition of stopping; the internal speed reducing mechanism of the transmission case is a double-drive speed reducing mechanism 6, an output end of the double-drive speed reducing mechanism 6 is provided with an output shaft 4 and an output shaft sleeve 5, the output shaft sleeve 5 is concentrically and rotatably arranged outside the output shaft 4, the output shaft 4 is connected with the grinding wheel 2, and the output shaft sleeve 5 is connected with the grinding disc 1.
Further preferably, the dual-drive reduction mechanism 6 is a dual-drive planetary gear reduction mechanism, and comprises a fixing frame 66 fixedly installed on the machine body 7, a planetary gear 65 is rotatably installed on the fixing frame 66, the inner side of the planetary gear 65 is meshed with a central gear 67, the outer side of the planetary gear 65 is meshed with the lower half part of an inner gear ring 62 slidably installed on the machine body 7, the upper end of the inner gear ring 62 is connected with the output shaft sleeve 5 through a transmission disc 63, the upper half part of the inner gear ring 62 is meshed with the planetary gear 65, the planetary gear 65 is movably installed on a planetary carrier 64, the inner side of the planetary gear 65 is meshed with a motor shaft gear 61, the motor shaft gear 61 is in direct connection with a motor shaft of the direct drive motor 8, the upper end of the planetary carrier 64 is connected with the output shaft 4, and the lower end of the planetary carrier 64 is meshed with the central gear 67.
Further preferably, a bearing 12 is arranged between the motor shaft of the direct-drive motor 8 and the machine body 7.
It is further preferred that a bearing 12 is provided between the output shaft 4 and the output shaft sleeve 5.
Further preferably, a driving disc 3 is arranged between the output shaft 4 and the grinding wheel 2, the driving disc 3 is movably connected with the grinding wheel 2, the output shaft 4 is movably connected with the driving disc 3, the number of the grinding wheels 2 is 2 or more, and the grinding wheels 2 are uniformly distributed on the surface of the grinding disc 1.
Preferably, in the step S3, the upper surface of the grinding disc 1 is inclined with a high inner side and a low outer side, the grinding wheel 2 is tapered with a small inner side and a large outer side, when the grinding wheel 2 rotates on the grinding disc 1, the revolution axis of the grinding wheel 2 and the rotation axis of the grinding disc 1 are in the same straight line, the surface of the grinding disc 1 is provided with V grooves 11, the V grooves 11 are concave in a triangle shape, the V grooves 11 are uniformly distributed on the surface of the grinding disc 1 in a circular conical surface circumference, and two ends of the V grooves are kept at a certain distance from the inner edge and the outer edge of the upper surface of the grinding disc 1 and are distributed in a ring-shaped radial interval.
Preferably, the grinding disc 1 rotates on the guide rail 9 arranged on the machine body 7 through guide wheels 10 arranged below, and the guide wheels 10 are provided with 3 or more than 3, so that the supporting force is balanced.
Preferably, in the step S4, the dust recovery device 13 is disposed at a lower side of an outer periphery of the grinding disc 1, the fan is mounted at an upper side of the outer periphery of the grinding disc 1, and the fan drives the milled dust on the grinding disc 1 to swirl and enter the dust recovery device 13.
When in operation, the direct drive motor 8 is started, the motor shaft gear 61 rotates forward and backward under the power of the motor shaft, the upper layer planetary gear 65 rotates backward and drives the inner gear ring 62 to rotate backward and forward, the lower layer planetary gear 65 also rotates backward and forward, the lower layer fixing frame 66 is fixedly arranged on the machine body 7 and keeps motionless, the central gear 67 meshed with the inner side of the lower layer planetary gear 65 rotates forward and backward, the planet carrier 64 connected with the central gear 67 also rotates forward and backward, the output shaft 4 connected with the planet carrier 64 rotates forward and backward, the output shaft sleeve 5 connected with the inner gear ring 62 rotates backward and forward, the grinding disc 1 meshed with the output shaft 4 also rotates forward and backward, the grinding disc 2 and the grinding disc 1 acquire mutually opposite and mutually backward powerful power, and the gear train is decelerated by the dual drive deceleration mechanism 6, the power on the grinding wheel 2 and the grinding disc 1 are also improved by corresponding times, the power is also upgraded by corresponding times and acts on the ground material together, the bottom of the material is supported on the grinding disc 1, large material cannot slide radially because the V-shaped groove is arranged on the surface of the grinding disc 1, the large material is impacted and rolled radially under the interaction of the grinding wheel 2 and the grinding disc 1, the grinding wheel 2 does not need to increase additional pressure, the grinding disc 1 can not bear additional pressure, the ground material is also rolled and ground into powder quickly, the material can automatically slide to the edge of the grinding disc 1 along the V-shaped groove from the middle of the grinding disc 1 because the surface of the grinding disc 1 is inclined, the V-shaped groove is not arranged on the edge of the upper surface of the grinding disc 1, the grinding wheel 2 and the grinding disc 1 can be rolled in parallel, under the mutual impact action of the rolling wheel 2 and the grinding disc 1, the material is rolled into dust, and enters the dust recovery device 13 for collection under the action of a fan.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Although used more herein: 1. grinding disc; 2. a rolling wheel; 3. a drive plate; 4. an output shaft; 5. an output shaft sleeve; 6. a dual drive reduction mechanism; 7. a body; 8. a direct drive motor; 9. a guide rail; 10. a guide wheel; a v groove; 12. a bearing; 13. a dust recovery device; 61. a motor shaft gear; 62. an inner gear ring; 63. a drive plate; 64. a row rack; 65. a planetary gear; 66. a fixing frame; 67. sun gears, etc., but do not exclude the possibility of using other terms. These terms are used merely for convenience in describing and explaining the nature of the invention; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present invention.
The cement clinker manufacturing process provided by the invention has been described above, and the description uses specific preferred examples to explain the principles and embodiments of the invention, these examples are only for aiding in understanding the principles and core concept of the invention, and it should be pointed out that the embodiments of the examples can be further combined or replaced by those skilled in the art without departing from the design concept of the invention, and the invention can be modified and modified in several ways, and these modifications and modifications are also within the scope of the claims of the invention.
Claims (9)
1. The utility model provides a cement clinker manufacturing process, includes the roller mill, the roller mill in be equipped with mill (1), grinding wheel (2) and direct drive motor (8), mill (1) rotatable support on organism (7), organism (7) and mill (1) between form airtight transmission case, direct drive motor (8) through the transmission case reduction drive mill (1) and grinding wheel (2) rotatory, its characterized in that: the manufacturing process of the cement clinker in the roller mill comprises the following steps:
s1, starting: the method comprises the steps of switching on a power supply control box, switching on a power supply of a direct-drive motor (8), enabling the direct-drive motor (8) to rotate bidirectionally, and enabling a speed reducing mechanism in the transmission box to drive a grinding disc (1) and a grinding wheel (2) to rotate by the direct-drive motor (8);
s2, feeding: starting a feeder to feed the material to be milled in the middle feeding pipe at the upper part of the milling disc (1) to the middle position at the upper part of the milling disc (1);
s3, roller grinding: the grinding disc (1) and the grinding wheel (2) rotate reversely and forcefully, the grinding wheel (2) rotates on the grinding disc (1) and revolves around the rotation axis of the grinding disc (1) at the same time, the roller grinding material is rapidly crushed and agglomerated under the double-driving and forceful-power dual-impact action of the grinding wheel (2) and the grinding disc (1), the crushed and agglomerated roller grinding material slides from the middle of the grinding disc (1) to the peripheral edge under the action of gravity and extrusion force from the middle of the grinding disc (1), and the crushed and agglomerated roller grinding material on the periphery of the upper surface of the grinding disc (1) is crushed into powder under the continuous and mutually reversely impact action of the grinding wheel (2) and the grinding disc (1);
s4, discharging: the roller grinding material which is ground into powder at the edge of the upper surface of the grinding disc (1) is rolled into a dust recovery device (13) under the action of a fan.
2. The cement clinker manufacturing process of claim 1, wherein: in the step S1, the bidirectional rotation means that after the direct-drive motor (8) rotates forward for a certain time, the motor is stopped slightly, then rotated reversely for a certain time, and the process is repeated repeatedly under the condition of stopping again; the inside reduction gears of transmission case be dual drive reduction gears (6), the output of dual drive reduction gears (6) be equipped with output shaft (4) and output axle sleeve (5), output axle sleeve (5) concentric rotatable establish in the outside of output shaft (4), output shaft (4) be connected with grinding wheel (2), output axle sleeve (5) be connected with mill (1).
3. The cement clinker manufacturing process of claim 2, wherein: the double-drive speed reducing mechanism (6) is a double-drive double-sleeve planetary gear speed reducing mechanism and comprises a fixing frame (66) fixedly arranged on a machine body (7), a planetary gear (65) is rotatably arranged on the fixing frame (66), the inner side of the planetary gear (65) is meshed with a central gear (67), the outer side of the planetary gear is meshed with the lower half part of an inner gear ring (62) which is slidably arranged on the machine body (7), the upper end of the inner gear ring (62) is connected with an output shaft sleeve (5) through a transmission disc (63), the upper half part of the inner gear ring (62) is also meshed with a planetary gear (65), the planetary gear (65) is movably arranged on a planetary carrier (64), the inner side of the planetary gear (65) is meshed with a motor shaft gear (61), the motor shaft gear (61) is in direct connection with a motor shaft of a direct drive motor (8), the upper end of the planetary carrier (64) is connected with an output shaft (4), and the lower end of the planetary carrier (64) is meshed with the central gear (67).
4. The cement clinker manufacturing process of claim 2, wherein: a bearing (12) is arranged between the motor shaft of the direct-drive motor (8) and the machine body (7).
5. The cement clinker manufacturing process of claim 2, wherein: a bearing (12) is arranged between the output shaft (4) and the output shaft sleeve (5).
6. The cement clinker manufacturing process of claim 2, wherein: the grinding wheel is characterized in that a driving disc (3) is arranged between the output shaft (4) and the grinding wheel (2), the driving disc (3) is movably connected with the grinding wheel (2), the output shaft (4) is movably connected with the driving disc (3), the number of the grinding wheels (2) is 2 or more, and the grinding wheels (2) are uniformly distributed on the surface of the grinding disc (1).
7. The cement clinker manufacturing process of claim 1, wherein: in the step S3, the upper surface of the grinding disc (1) is inclined with the inner side high and the outer side low, the grinding wheel (2) is conical with the inner side small and the outer side large, when the grinding wheel (2) rotates on the grinding disc (1), the revolution axis of the grinding wheel (2) and the rotation axis of the grinding disc (1) are in the same straight line, the surface of the grinding disc (1) is provided with V grooves (11), the V grooves (11) are concaved in a triangular shape, the V grooves (11) are uniformly distributed on the circumference of the conical surface on the surface of the grinding disc (1), and two ends of the V grooves are kept at a certain distance from the inner edge and the outer edge of the upper surface of the grinding disc (1) and are distributed in annular radial intervals.
8. The cement clinker manufacturing process of claim 1, wherein: the grinding disc (1) rotates on a guide rail (9) arranged on the machine body (7) through guide wheels (10) arranged below the grinding disc, and the guide wheels (10) are provided with 3 or more than 3, so that the supporting force is balanced.
9. The cement clinker manufacturing process of claim 1, wherein: in the step S4, the dust recovery device (13) is arranged at the lower side of the periphery of the millstone (1), the fan is arranged at the upper side of the periphery of the millstone (1), and the fan drives the rolled dust on the millstone (1) to swirl and enter the dust recovery device (13).
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| CN202310375820.8A CN116532200A (en) | 2023-04-11 | 2023-04-11 | Cement clinker manufacturing process |
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| CN202310375820.8A CN116532200A (en) | 2023-04-11 | 2023-04-11 | Cement clinker manufacturing process |
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