CN114315186A - Environment-friendly building cement and preparation method thereof - Google Patents
Environment-friendly building cement and preparation method thereof Download PDFInfo
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- CN114315186A CN114315186A CN202210084663.0A CN202210084663A CN114315186A CN 114315186 A CN114315186 A CN 114315186A CN 202210084663 A CN202210084663 A CN 202210084663A CN 114315186 A CN114315186 A CN 114315186A
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Abstract
The invention discloses environment-friendly building cement and a preparation method thereof, wherein the environment-friendly building cement is prepared from the following raw materials in parts by weight; 40-60 parts of cement clinker, 6-9 parts of modified dried sludge, 5-10 parts of iron ore powder, 5-11 parts of desulfurized ash, 5-10 parts of limestone, 10-30 parts of sandstone, 10-20 parts of talcum powder, 10-20 parts of manganese slag and 15-30 parts of fluorgypsum, and the preparation method comprises the following steps: s1, crushing; s2, screening and processing; s3, mixing the materials; s4, performing material body equipartition processing; s5, sintering clinker; the preparation method can fully complete the efficient mixing among the material bodies, achieves better mixing efficiency, can effectively scrape the material bodies adhered to the inner wall of the mixing device, thereby avoiding the waste of the material bodies, can effectively and fully screen the residue waste and the powder, and can discharge the residue which is not crushed outside to the outside through the discharging disc.
Description
Technical Field
The invention relates to building cement, in particular to environment-friendly building cement and a preparation method thereof, belonging to the technical field of application chemical industry.
Background
Cement: the powdered hydraulic inorganic cementing material is mixed with water to form slurry, which can be hardened in air or water and can firmly cement sand and stone together, and the early mixture of lime and volcanic ash is similar to that of lime and volcanic ash cement.
Present environmental protection building cement is in the preparation processing procedure, needs outside screening device in advance to carry out screening process work to it, but present screening device is in the use, because of inside does not set up better drive mechanism, leads to carrying out the screening process to cement, can cause a large amount of wastes of material body, is unfavorable for outside personnel to carry out screening process work to cement.
Disclosure of Invention
The invention aims to provide environment-friendly building cement and a preparation method thereof, wherein the environment-friendly building cement comprises the following steps:
through set up screening mechanism in breaker is inside, can be effectual carry out abundant screening between residue waste material and the powder, outside not kibbling residue is discharged to the outside through lower charging tray.
And then, the processed material body is automatically, quickly and effectively uniformly divided and strickled by a uniform dividing mechanism in the uniform dividing device.
The purpose of the invention can be realized by the following technical scheme: an environment-friendly building cement is prepared from the following raw materials in parts by weight; 40-60 parts of cement clinker, 6-9 parts of modified dried sludge, 5-10 parts of iron ore powder, 5-11 parts of desulfurized ash, 5-10 parts of limestone, 10-30 parts of sandstone, 10-20 parts of talcum powder, 10-20 parts of manganese slag and 15-30 parts of fluorgypsum;
the interior material of the fluorgypsum is calcium sulfate, and the fluorgypsum is prepared by carrying out chemical reaction on fluorite and sulfuric acid, and the cement clinker is prepared by using limestone, clay and iron raw materials as main raw materials according to the proportion of 2: 1: 1 preparing raw materials, burning until partial or complete melting, and cooling to obtain semi-finished products; the talcum powder is prepared by crushing hydrous magnesium silicate as an internal component, treating with hydrochloric acid, cleaning with distilled water and drying.
Preferably, the preparation method of the environment-friendly building cement comprises the following steps:
s1, crushing treatment: cement clinker, limestone, sandstone, fierce slag and fluorgypsum are thrown into a crushing device, a material body is directly conveyed into the crushing device through a feed hopper, and in the conveying process, the gravity action of the cement clinker, the limestone, the sandstone, the fierce slag and the fluorgypsum is utilized, the material blocking inclined plate is pressed, so that the built-in abutting spring is driven to deform, the built-in abutting spring is reset after being deformed, the material blocking inclined plate is abutted, so that after a material body completely falls into the crushing device, the material blocking inclined plate returns to an initial position to block dust generated in the working process of the crushing device, a circuit switch of a rotating motor is turned on to directly drive a grinding roller to rotate, the grinding roller is used for grinding cement clinker, limestone, sandstone, manganese slag and fluorgypsum, and the ground material body gradually falls downwards and falls onto the upper end face of a vibrating frame and a screen;
s2, screening treatment: the method comprises the following steps that a circuit switch of a servo motor is directly turned on, the servo motor drives a rotary guide rod to rotate, the rotary guide rod drives a vibrating frame and a screen to swing back and forth in the rotating process through the matching use relationship between the rotary guide rod and a hollow sleeve rod, a limit ring column horizontally limits the hollow sleeve rod and drives the vibrating frame and the screen to swing back and forth, buffer springs on two sides are driven to deform in the swinging process, the buffer springs reset after being deformed and buffer the vibrating frame, the vibrating frame and the screen can also swing back and forth at the same time, residue waste materials and powder are fully screened, the residue which is not crushed outside is discharged outside through a discharging disc, and the screened powder directly conveys a material body into a mixing device through an external conveying device;
s3, mixing the materials: directly conveying the modified dried sludge, the iron ore powder, the desulfurized ash and the talcum powder into a mixing device, directly opening a circuit switch of a stepping motor, driving an inner stirring rod to rotate by the stepping motor, and controlling a control panel to complete mixing treatment work of a material body;
s4, material body sharing processing: the circuit switch of the electric telescopic rod is directly opened, the electric telescopic rod drives the built-in movable push rod to move back and forth, the built-in movable push rod is connected with the rotary sector wheel in a sliding mode, the built-in movable push rod drives the rotary sector wheel to swing back and forth in the back and forth movement process, the rotary sector wheel is connected with the built-in movable scraper plate in a meshing mode through the side connecting toothed plate, the rotary sector wheel drives the built-in movable scraper plate to slide in the side fixed hollow sliding plate in the rotation process, and the built-in movable scraper plate can automatically, quickly and effectively evenly scrape processed material bodies in the sliding process;
s5, clinker sintering: the raw material directly enters a hot drying device to carry out clinker firing, carbonate in the hot drying device is further rapidly decomposed and reacts with solid phase to generate minerals in cement clinker, the minerals can become liquid phase along with the rise of the temperature of the material and react to generate a large amount of clinker, the temperature starts to be reduced after the clinker is fired, and finally the high-temperature clinker discharged from the rotary kiln is cooled to the temperature which can be born by downstream conveying, a storage warehouse and a cement mill by a cement clinker cooler, and the sensible heat of the high-temperature clinker is recovered;
the crushing device is characterized in that a feeding hopper is installed at the upper end position inside the crushing device, a built-in center frame is fixedly installed at the middle position inside the feeding hopper, two sides of the built-in center frame are symmetrically and rotatably connected with material blocking inclined plates through built-in connecting rotating shafts, built-in contact springs are connected between the material blocking inclined plates at two sides and the built-in center frame, a rotating motor is fixedly installed on the outer wall of one side of the crushing device, a crushing roller is fixedly installed at the output end of the rotating motor, a servo motor is fixedly installed below the rotating motor on the outer wall of one side of the crushing device, a rotating guide rod is fixedly installed at the output end of the servo motor, a fixed disc is fixedly installed at the upper end of the servo motor, two corresponding limiting ring columns are fixedly installed at two sides of the upper end of the fixed disc, two corresponding limiting ring columns are in a group, and a hollow sleeve rod is slidably connected between each group of the limiting ring columns, the hollow loop bar is connected with the rotating guide bar in a sliding manner, side sliding discs are fixedly arranged on two sides in the crushing device, a vibration frame is connected between the two corresponding side sliding discs in a sliding manner, a screen is fixedly connected in the vibration frame, and a plurality of buffer springs are fixedly connected between two sides of the vibration frame and the side sliding discs;
a stepping motor is fixedly installed at the upper end position inside the mixing device, a control panel is fixedly installed at the middle position of the annular outer surface of the mixing device, and a water outlet valve pipe is fixedly installed at the lower end position of the annular outer surface of the mixing device;
the dividing device is characterized in that a protective cover plate is fixedly mounted on the upper end face of the dividing device, an edge side chute is formed in one side of the dividing device, a rotary fan-shaped wheel is rotatably connected to the position, located at the lower end of the edge side chute, of the front end face of the dividing device, an electric telescopic rod is fixedly mounted at the position, close to the upper end corner position, of the front end face of the dividing device, a built-in movable push rod is fixedly mounted at the output end of the electric telescopic rod, edge-mounted fixed hollow sliding plates are fixedly mounted on the two inner sides of the dividing device, a built-in movable scraper is slidably connected between the two corresponding edge-mounted fixed hollow sliding plates, a plurality of lower scraping teeth are fixedly mounted on the lower end faces of the built-in movable scrapers, an edge-mounted connecting toothed plate is fixedly mounted at the middle position of one end face of the built-in movable scrapers, a control panel is fixedly mounted at the corner position of the other side of the front end face of the dividing device, and the built-in movable push rod is slidably connected with the rotary fan-shaped wheel, equally divide device front end face intermediate position department fixed mounting to have the board of block that supplies to rotate the sector wheel installation, it is connected with the connection pivot to rotate between sector wheel and the board of block, it is connected with meshing between the connection pinion rack to rotate sector wheel and limit, and puts sliding connection between connection pinion rack and the avris spout on the limit.
Preferably, the notches for keeping off the activity of the material sloping plate are formed in two sides of the inner portion of the built-in center frame, and the two corresponding crushing rollers are connected in an occlusion mode.
Preferably, the position of the vibration frame corresponds to the position of the blanking disc, and a connecting rotating shaft is rotatably connected between the vibration frame and the pulling rod.
Preferably, the rotating speed of the rotating motor in the step S1 is set to be 200-350r/min, and the rotating speed of the servo motor in the step S2 is set to be 250-350 r/min.
In the step S3, the internal rotation speed of the stepping motor is set at 230-350r/min, and the internal working temperature of the mixing device is set at 85-95 ℃.
Compared with the prior art, the invention has the beneficial effects that:
1. directly open servo motor's circuit switch, servo motor just effectively drives and rotates U type pole and rotate, it is at the rotation in-process to rotate U type pole, cooperation use relation between through the activity lantern ring and the pull pole, effectively drive vibration frame and screen cloth and carry out the swing back and forth, in the swing treatment process, just, the buffer spring who drives both sides takes place to deform, reset after buffer spring takes place to deform, just can be better cushion the vibration frame, also can make vibration frame and screen cloth swing back and forth simultaneously, effectually carry out abundant screening between residue waste material and the powder, outside not kibbling residue is discharged to the outside through the unloading dish, the material body after can be better will pulverize carries out the screening process, thereby reach better screening work, be convenient for outside personnel carry out follow-up processing work.
2. Directly open electric telescopic handle's circuit switch, electric telescopic handle just effectively drives built-in movable push rod and carries out the round trip movement, sliding connection between built-in movable push rod and the rotation sector wheel, the event built-in movable push rod is at the round trip movement in-process, it sways to drive to rotate the sector wheel and make a round trip, it connects to rotate the sector wheel through meshing between limit putting connection pinion rack and the built-in movable scraper blade, the event rotates the sector wheel at the rotation in-process, just can effectively drive built-in movable scraper blade and put fixed hollow slide inside on the limit and slide, the slip in-process, built-in movable scraper blade just can equally divide by oneself effectual material body after the processing and strickle the processing.
3. With cement clinker, the lime stone, the sandstone, fierce sediment and fluorgypsum are thrown into breaker, directly carry the breaker inside with the material body through the feeder hopper, in the transportation process, cement clinker, the lime stone, the sandstone, fierce sediment and fluorgypsum have certain quality, can press the material blocking swash plate, thereby it takes place deformation to drive built-in conflict spring, it resets to embed to touch the spring and take place to deform after, just can directly contradict the material blocking swash plate, thereby when the material body drops inside the breaker completely after, the material blocking swash plate gets back to initial position, effectually block the dust that produces in the breaker working process, avoid the dust excessive, be convenient for outside personnel's construction treatment work.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic flow chart of the preparation method of the present invention;
FIG. 2 is a perspective view of the overall internal structure of the present invention;
FIG. 3 is a perspective view of a portion of the crushing apparatus according to the present invention;
FIG. 4 is an enlarged view of the internal structure of the area A in FIG. 3 according to the present invention;
FIG. 5 is a schematic plan view of a portion of the construction of the crushing apparatus of the present invention;
fig. 6 is an exploded view showing the internal structure of the equipartition device according to the present invention.
In the figure: 1. a crushing device; 11. a feed hopper; 110. a central frame is arranged inside; 111. a material blocking inclined plate; 112. a contact spring is arranged in the groove; 113. a connecting rotating shaft is arranged in the connecting rod; 12. rotating the motor; 13. a crushing roller; 14. a servo motor; 141. rotating the guide rod; 142. pulling the rod; 143. a hollow loop bar; 144. a confinement ring column; 145. fixing the disc; 15. discharging a material tray; 16. a sliding disc is arranged at the edge; 17. vibrating the frame; 18. a buffer spring; 19. screening a screen; 2. a mixing device; 21. a stepping motor; 22. a control panel; 3. an averaging device; 31. a cover protecting plate; 32. a control panel; 33. an edge side chute; 34. an electric telescopic rod; 35. rotating the sector wheel; 36. a movable push rod is arranged inside; 37. a movable scraper is arranged in the scraper; 38. a hollow sliding plate is fixed at the edge; 39. lower scraper teeth; 310. the connecting toothed plate is arranged at the edge; 4. a hot drying device.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-6, an environment-friendly building cement is prepared from the following raw materials in parts by weight; 40 parts of cement clinker, 6 parts of modified dried sludge, 5 parts of iron ore powder, 5 parts of desulfurized ash, 5 parts of limestone, 10 parts of sandstone, 10 parts of talcum powder, 10 parts of manganese slag and 15 parts of fluorgypsum;
the interior material of the fluorgypsum is calcium sulfate, and the fluorgypsum is prepared by carrying out chemical reaction on fluorite and sulfuric acid, and the cement clinker is prepared by using limestone, clay and iron raw materials as main raw materials according to the proportion of 2: 1: 1 preparing raw materials, burning until partial or complete melting, and cooling to obtain semi-finished products; the talcum powder is prepared by crushing hydrous magnesium silicate as an internal component, treating with hydrochloric acid, cleaning with distilled water and drying.
Further, the preparation method of the environment-friendly building cement comprises the following steps:
s1, crushing treatment: cement clinker, limestone, sandstone, fierce slag and fluorgypsum are thrown into a crushing device 1, a material body is directly conveyed into the crushing device 1 through a feed hopper 11, in the conveying process, the gravity action of the cement clinker, the limestone, the sandstone, the fierce slag and the fluorgypsum is utilized to press a material blocking inclined plate 111, so that a built-in abutting spring 112 is driven to deform, the built-in abutting spring 112 is reset after deforming, the material blocking inclined plate 111 is abutted, so that after the material body completely falls into the crushing device 1, the material blocking inclined plate 111 returns to an initial position, dust generated in the working process of the crushing device 1 is blocked, a circuit switch of a rotating motor 12 is turned on, the rotating speed of the rotating motor 12 is set at 200r/min, a crushing roller 13 is directly driven to rotate, and the cement clinker, the limestone, the sandstone, the fierce slag and the fluorgypsum are crushed by the crushing roller 13, the crushed material body gradually falls downwards and falls onto the upper end surfaces of the vibrating frame 17 and the screen 19;
s2, screening treatment: the circuit switch of the servo motor 14 is directly opened, the motor speed of the servo motor 14 is set to 250r/min, the servo motor 14 drives the rotary guide rod 141 to rotate, and during the rotation process of the rotary guide rod 141, through the matching use relationship between the rotary guide rod 141 and the hollow loop bar 143, the limiting ring column 144 limits the hollow loop bar 143 horizontally, drives the vibrating frame 17 and the screen 19 to swing back and forth, in the swing processing process, the buffer springs 18 on the two sides are driven to deform, the buffer springs 18 reset after being deformed, the vibrating frame 17 is buffered, the vibrating frame 17 and the screen 19 can also swing back and forth, residue waste and powder are fully screened, the residue which is not crushed outside is discharged outside through the blanking disc 15, and the screened powder directly conveys the material body to the inside of the mixing device 2 through an external conveying device;
s3, mixing the materials: directly conveying the modified dried sludge, the iron ore powder, the desulfurized fly ash and the talcum powder into the mixing device 2, directly opening a circuit switch of the stepping motor 21, setting the rotating speed of the internal rotating machine of the stepping motor 21 at 230r/min, setting the working temperature of the internal part of the mixing device 2 at 85 ℃, driving an internal stirring rod to rotate by the stepping motor 21, and controlling the control panel 22 to complete the mixing treatment work of the material body;
s4, material body sharing processing: the circuit switch of the electric telescopic rod 34 is directly opened, the electric telescopic rod 34 drives the built-in movable push rod 36 to move back and forth, the built-in movable push rod 36 is connected with the rotary sector wheel 35 in a sliding mode, so that the built-in movable push rod 36 drives the rotary sector wheel 35 to swing back and forth in the back and forth movement process, the rotary sector wheel 35 is connected with the built-in movable scraper 37 in a meshing mode through the edge-arranged connecting toothed plate 310, the rotary sector wheel 35 drives the built-in movable scraper 37 to slide in the edge-arranged fixed hollow sliding plate 38 in the rotation process, and the built-in movable scraper 37 can automatically, quickly and effectively conduct uniform scraping treatment on a processed material body in the sliding process;
s5, clinker sintering: the raw material directly enters a hot drying device 4 to be sintered, carbonate in the hot drying device 4 is further rapidly decomposed and reacts with solid phase to generate minerals in cement clinker, the minerals can change into liquid phase along with the rise of the temperature of the material, a large amount of clinker is generated through reaction, the temperature starts to be reduced after the clinker is sintered, and finally the high-temperature clinker discharged from the rotary kiln is cooled to the temperature which can be born by downstream conveying, a storage warehouse and a cement mill by a cement clinker cooler, and the sensible heat of the high-temperature clinker is recovered.
Example 2
Referring to fig. 1-6, an environment-friendly building cement is prepared from the following raw materials in parts by weight; 50 parts of cement clinker, 7 parts of modified dried sludge, 7 parts of iron ore powder, 7 parts of desulfurized ash, 7 parts of limestone, 20 parts of sandstone, 15 parts of talcum powder, 15 parts of manganese slag and 20 parts of fluorgypsum;
the interior material of the fluorgypsum is calcium sulfate, and the fluorgypsum is prepared by carrying out chemical reaction on fluorite and sulfuric acid, and the cement clinker is prepared by using limestone, clay and iron raw materials as main raw materials according to the proportion of 2: 1: 1 preparing raw materials, burning until partial or complete melting, and cooling to obtain semi-finished products; the talcum powder is prepared by crushing hydrous magnesium silicate as an internal component, treating with hydrochloric acid, cleaning with distilled water and drying.
Further, the preparation method of the environment-friendly building cement comprises the following steps:
s1, crushing treatment: cement clinker, limestone, sandstone, fierce slag and fluorgypsum are thrown into a crushing device 1, a material body is directly conveyed into the crushing device 1 through a feed hopper 11, and during conveying, the cement clinker, the limestone, the sandstone, the fierce slag and the fluorgypsum have certain quality and can be pressed against a material blocking inclined plate 111, so that a built-in abutting spring 112 is driven to deform, the built-in abutting spring 112 is reset after being deformed, the material blocking inclined plate 111 can be directly abutted, so that after the material body completely falls into the crushing device 1, the material blocking inclined plate 111 returns to an initial position, dust generated in the working process of the crushing device 1 is effectively blocked, and then a circuit switch of a rotating motor 12 is turned on, the rotating speed of the rotating motor 12 is set at 270r/min, a grinding roller 13 is directly driven to rotate, and the grinding roller 13 can fully convey the cement clinker, the limestone and the fluorgypsum to the inside of the crushing device 1, Crushing limestone, sandstone, fierce slag and fluorgypsum, and gradually dropping the crushed material body downwards to the upper end surfaces of the vibration frame 17 and the screen 19;
s2, screening treatment: the circuit switch of the servo motor 14 is directly opened, the motor speed of the servo motor 14 is set at 270r/min, the servo motor 14 drives the rotary guide rod 141 to rotate, and during the rotation process of the rotary guide rod 141, through the matching use relationship between the rotary guide rod 141 and the hollow loop bar 143, the limiting ring column 144 limits the hollow loop bar 143 horizontally, drives the vibrating frame 17 and the screen 19 to swing back and forth, in the swing processing process, the buffer springs 18 at the two sides are driven to deform, the buffer springs 18 reset after deforming, the vibration frame 17 can be well buffered, meanwhile, the vibrating frame 17 and the screen 19 can swing back and forth, so that the residue waste and the powder are effectively and fully screened, the residue which is not crushed outside is discharged outside through the blanking disc 15, and the screened powder directly conveys the material body to the inside of the mixing device 2 through an external conveying device;
s3, mixing the materials: directly conveying the modified dried sludge, the iron ore powder, the desulfurized fly ash and the talcum powder into the mixing device 2, directly opening a circuit switch of the stepping motor 21, setting the rotating speed of the internal rotating machine of the stepping motor 21 at 270r/min, setting the working temperature of the internal part of the mixing device 2 at 90 ℃, driving an internal stirring rod to rotate by the stepping motor 21, and controlling the control panel 22 to complete the mixing treatment work of the material body;
s4, material body sharing processing: the circuit switch of the electric telescopic rod 34 is directly opened, the electric telescopic rod 34 effectively drives the built-in movable push rod 36 to move back and forth, the built-in movable push rod 36 is connected with the rotary sector wheel 35 in a sliding mode, so that the built-in movable push rod 36 drives the rotary sector wheel 35 to swing back and forth in the back and forth movement process, the rotary sector wheel 35 is connected with the built-in movable scraper 37 in a meshing mode through the edge-positioned connecting toothed plate 310, the rotary sector wheel 35 can effectively drive the built-in movable scraper 37 to slide inside the edge-positioned fixed hollow sliding plate 38 in the rotation process, and the built-in movable scraper 37 can automatically, quickly and effectively evenly scrape processed materials;
s5, clinker sintering: the raw material directly enters a hot drying device 4 to be sintered, carbonate in the hot drying device 4 is further rapidly decomposed and generates a series of solid phase reactions to generate minerals in the cement clinker, the minerals can be changed into liquid phase along with the rise of the temperature of the material to be reacted to generate a large amount of clinker, the temperature starts to be reduced after the clinker is sintered, and finally the high-temperature clinker discharged from the rotary kiln is cooled to the temperature which can be born by downstream conveying, a storage warehouse and a cement mill by a cement clinker cooler, and the sensible heat of the high-temperature clinker is recovered.
Example 3
Referring to fig. 1-6, an environment-friendly building cement is prepared from the following raw materials in parts by weight; 60 parts of cement clinker, 9 parts of modified dried sludge, 10 parts of iron ore powder, 11 parts of desulfurized ash, 10 parts of limestone, 30 parts of sandstone, 20 parts of talcum powder, 20 parts of manganese slag and 30 parts of fluorgypsum.
Further, the main component in the fluorgypsum is calcium sulfate, fluorite and sulfuric acid are used for chemical reaction to prepare the fluorgypsum, and the cement clinker is prepared by using limestone, clay and iron raw materials as main raw materials, preparing raw materials according to a proper proportion, burning the raw materials until the raw materials are partially or completely molten, and cooling the raw materials to obtain a semi-finished product.
Furthermore, the main component in the talcum powder is hydrous magnesium silicate, the hydrous magnesium silicate is crushed and then treated by hydrochloric acid, and the talcum powder is prepared by washing and drying by using distilled water.
Still further, the preparation method of the environment-friendly building cement comprises the following steps:
s1, crushing treatment: cement clinker, limestone, sandstone, fierce slag and fluorgypsum are thrown into a crushing device 1, a material body is directly conveyed into the crushing device 1 through a feed hopper 11, and during conveying, the cement clinker, the limestone, the sandstone, the fierce slag and the fluorgypsum have certain quality and can be pressed against a material blocking inclined plate 111, so that a built-in abutting spring 112 is driven to deform, the built-in abutting spring 112 is reset after being deformed, the material blocking inclined plate 111 can be directly abutted, so that after the material body completely falls into the crushing device 1, the material blocking inclined plate 111 returns to an initial position, dust generated in the working process of the crushing device 1 is effectively blocked, and then a circuit switch of a rotating motor 12 is turned on, the rotating speed of the rotating motor 12 is set to be 350r/min, a grinding roller 13 is directly driven to rotate, and the grinding roller 13 can fully convey the cement clinker, the sand and the fluorgypsum to the inside of the crushing device 1, Crushing limestone, sandstone, fierce slag and fluorgypsum, and gradually dropping the crushed material body downwards to the upper end surfaces of the vibration frame 17 and the screen 19;
s2, screening treatment: the circuit switch of the servo motor 14 is directly opened, the motor speed of the servo motor 14 is set at 350r/min, the servo motor 14 drives the rotary guide rod 141 to rotate, and during the rotation process of the rotary guide rod 141, through the matching use relationship between the rotary guide rod 141 and the hollow loop bar 143, the limiting ring column 144 limits the hollow loop bar 143 horizontally, drives the vibrating frame 17 and the screen 19 to swing back and forth, in the swing processing process, the buffer springs 18 at the two sides are driven to deform, the buffer springs 18 reset after deforming, the vibration frame 17 can be well buffered, meanwhile, the vibrating frame 17 and the screen 19 can swing back and forth, so that the residue waste and the powder are effectively and fully screened, the residue which is not crushed outside is discharged outside through the blanking disc 15, and the screened powder directly conveys the material body to the inside of the mixing device 2 through an external conveying device;
s3, mixing the materials: directly conveying the modified dried sludge, the iron ore powder, the desulfurized fly ash and the talcum powder into the mixing device 2, directly opening a circuit switch of the stepping motor 21, setting the rotating speed of the internal rotating machine of the stepping motor 21 at 350r/min, setting the working temperature of the internal part of the mixing device 2 at 95 ℃, driving an internal stirring rod to rotate by the stepping motor 21, and controlling the control panel 22 to complete the mixing treatment work of the material body;
s4, material body sharing processing: the circuit switch of the electric telescopic rod 34 is directly opened, the electric telescopic rod 34 effectively drives the built-in movable push rod 36 to move back and forth, the built-in movable push rod 36 is connected with the rotary sector wheel 35 in a sliding mode, so that the built-in movable push rod 36 drives the rotary sector wheel 35 to swing back and forth in the back and forth movement process, the rotary sector wheel 35 is connected with the built-in movable scraper 37 in a meshing mode through the edge-positioned connecting toothed plate 310, the rotary sector wheel 35 can effectively drive the built-in movable scraper 37 to slide inside the edge-positioned fixed hollow sliding plate 38 in the rotation process, and the built-in movable scraper 37 can automatically, quickly and effectively evenly scrape processed materials;
s5, clinker sintering: the raw material directly enters a hot drying device 4 to be sintered, carbonate in the hot drying device 4 is further rapidly decomposed and generates a series of solid phase reactions to generate minerals in the cement clinker, the minerals can be changed into liquid phase along with the rise of the temperature of the material to be reacted to generate a large amount of clinker, the temperature starts to be reduced after the clinker is sintered, and finally the high-temperature clinker discharged from the rotary kiln is cooled to the temperature which can be born by downstream conveying, a storage warehouse and a cement mill by a cement clinker cooler, and the sensible heat of the high-temperature clinker is recovered.
A feed hopper 11 is arranged at the upper end position inside the crushing device 1, an internal center frame 110 is fixedly arranged at the middle position inside the feed hopper 11, the two sides of the internal center frame 110 are symmetrically and rotatably connected with material blocking inclined plates 111 through internal connecting rotating shafts 113, internal abutting springs 112 are respectively connected between the material blocking inclined plates 111 at the two sides and the internal center frame 110, a rotating motor 12 is fixedly arranged on the outer wall at one side of the crushing device 1, a crushing roller 13 is fixedly arranged at the output end of the rotating motor 12, a servo motor 14 is fixedly arranged on the outer wall at one side of the crushing device 1 below the rotating motor 12, a rotating guide rod 141 is fixedly arranged at the output end of the servo motor 14, a fixed disc 145 is fixedly arranged at the upper end of the servo motor 14, two corresponding limiting ring columns 144 are fixedly arranged at the two sides at the upper end of the fixed disc 145, one group of the two corresponding limiting ring columns 144 is a group, and a hollow sleeve rod 143 is slidably connected between each group of the limiting ring columns 144, the hollow sleeve rod 143 is connected with the rotary guide rod 141 in a sliding and sleeving manner, the side sliding discs 16 are fixedly installed at two sides in the crushing device 1, the vibration frame 17 is connected between the two corresponding side sliding discs 16 in a sliding manner, the screen 19 is fixedly connected in the vibration frame 17, and the buffer springs 18 are fixedly connected between two sides of the vibration frame 17 and the side sliding discs 16;
a stepping motor 21 is fixedly arranged at the upper end position in the mixing device 2, a control panel 22 is fixedly arranged at the middle position of the annular outer surface of the mixing device 2, and a water outlet valve pipe is fixedly arranged at the lower end position of the annular outer surface of the mixing device 2;
a protective cover plate 31 is fixedly arranged on the upper end surface of the equipartition device 3, one side of the equipartition device 3 is provided with an edge side chute 33, the front end surface of the equipartition device 3 is rotatably connected with a rotary fan-shaped wheel 35 at the lower end position of the edge side chute 33, an electric telescopic rod 34 is fixedly arranged at the position of the front end surface of the equipartition device 3 close to the upper end corner position, the output end of the electric telescopic rod 34 is fixedly provided with a built-in movable push rod 36, two sides of the interior of the equipartition device 3 are fixedly provided with edge fixed hollow sliding plates 38, a built-in movable scraper 37 is slidably connected between the two corresponding edge fixed hollow sliding plates 38, a plurality of lower scraper teeth 39 are fixedly arranged on the lower end surface of the built-in movable scraper 37, an edge connecting toothed plate 310 is fixedly arranged at the middle position of one end surface of the built-in movable scraper 37, a control panel 32 is fixedly arranged at the corner position of the other side of the front end surface of the equipartition device 3, and the built-in movable push rod 36 is slidably connected with the rotary fan-shaped wheel 35, a block plate for installing the rotary sector wheel 35 is fixedly installed at the middle position of the front end face of the equipartition device 3, a connecting rotary shaft is rotatably connected between the rotary sector wheel 35 and the block plate, the rotary sector wheel 35 is meshed with the edge-placed connecting toothed plate 310, and the edge-placed connecting toothed plate 310 is slidably connected with the edge-side sliding groove 33.
Still further, the inside both sides of built-in center rest 110 all set up the notch that supplies to keep off the material swash plate 111 activity, and crushing roller 13 is provided with two altogether, and the interlock formula is connected between two corresponding crushing rollers 13.
Still further, the position of the vibration frame 17 corresponds to the position of the blanking disc 15, and a connection rotating shaft is rotatably connected between the vibration frame 17 and the pulling rod 142.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention and should not be taken as limiting the scope of the invention. All equivalent changes and modifications made within the scope of the present invention shall fall within the scope of the present invention.
Claims (6)
1. The environment-friendly building cement is characterized by being prepared from the following raw materials in parts by weight; 40-60 parts of cement clinker, 6-9 parts of modified dried sludge, 5-10 parts of iron ore powder, 5-11 parts of desulfurized ash, 5-10 parts of limestone, 10-30 parts of sandstone, 10-20 parts of talcum powder, 10-20 parts of manganese slag and 15-30 parts of fluorgypsum;
the interior material of the fluorgypsum is calcium sulfate, and the fluorgypsum is prepared by carrying out chemical reaction on fluorite and sulfuric acid, and the cement clinker is prepared by using limestone, clay and iron raw materials as main raw materials according to the proportion of 2: 1: 1 preparing raw materials, burning until partial or complete melting, and cooling to obtain semi-finished products; the talcum powder is prepared by crushing hydrous magnesium silicate as an internal component, treating with hydrochloric acid, cleaning with distilled water and drying.
2. The preparation method of the environment-friendly building cement is characterized by comprising the following steps:
s1, crushing treatment: cement clinker, limestone, sandstone, high-grade slag and fluorgypsum are thrown into a crushing device (1), a material body is directly conveyed into the crushing device (1) through a feed hopper (11), in the conveying process, the gravity action of the cement clinker, the limestone, the sandstone, the high-grade slag and the fluorgypsum is utilized to press a material blocking inclined plate (111), so that a built-in abutting spring (112) is driven to deform, the built-in abutting spring (112) resets after deforming, the material blocking inclined plate (111) is abutted, so that the material blocking inclined plate (111) returns to an initial position after the material body completely falls into the crushing device (1), dust generated in the working process of the crushing device (1) is blocked, a circuit switch of a rotating motor (12) is opened, a grinding roller (13) is directly driven to rotate, and the cement clinker, the limestone and the grinding roller (13) are used for grinding the cement clinker, the limestone, Crushing sandstone, violent slag and fluorgypsum, and gradually dropping the crushed material body downwards to the upper end surfaces of a vibration frame (17) and a screen (19);
s2, screening treatment: a circuit switch of the servo motor (14) is directly opened, the servo motor (14) drives the rotary guide rod (141) to rotate, and the rotary guide rod (141) rotates in the process of rotation, through the matching use relationship between the rotary guide rod (141) and the hollow loop bar (143), the limiting ring column (144) limits the hollow loop bar (143) horizontally, drives the vibrating frame (17) and the screen (19) to swing back and forth, in the swinging process, the buffer springs (18) at the two sides are driven to deform, the buffer springs (18) reset after being deformed, the vibrating frame (17) is buffered, the vibrating frame (17) and the screen (19) can swing back and forth at the same time, residue waste and powder are fully screened, the residue which is not crushed outside is discharged outside through the blanking disc (15), and the screened powder directly conveys the material body to the inside of the mixing device (2) through an external conveying device;
s3, mixing the materials: directly conveying the modified dried sludge, the iron ore powder, the desulfurized ash and the talcum powder into the mixing device (2), directly opening a circuit switch of the stepping motor (21), driving an inner stirring rod to rotate by the stepping motor (21), and controlling the control panel (22) to complete the mixing treatment work of the material body;
s4, material body sharing processing: the circuit switch of the electric telescopic rod (34) is directly opened, the electric telescopic rod (34) drives the built-in movable push rod (36) to move back and forth, the built-in movable push rod (36) is connected with the rotary sector wheel (35) in a sliding mode, so that the built-in movable push rod (36) drives the rotary sector wheel (35) to swing back and forth in the back and forth moving process, the rotary sector wheel (35) is connected with the built-in movable scraper (37) in a meshing mode through the side connecting toothed plate (310), so that the rotary sector wheel (35) drives the built-in movable scraper (37) to slide in the side fixed hollow sliding plate (38) in the rotating process, and the built-in movable scraper (37) can automatically, quickly and effectively conduct uniform scraping treatment on a processed material body in the sliding process;
s5, clinker sintering: the raw materials directly enter a hot drying device (4) to carry out clinker firing, the carbonate in the hot drying device (4) is further rapidly decomposed and reacts with a solid phase to generate minerals in the cement clinker, the minerals can become a liquid phase along with the rise of the temperature of the materials, a large amount of clinker is generated through reaction, the temperature starts to be reduced after the clinker is fired, and finally, the cement clinker cooler cools the high-temperature clinker discharged from the rotary kiln to the temperature which can be born by downstream transportation, a storage warehouse and a cement mill, and simultaneously, the sensible heat of the high-temperature clinker is recovered;
the crusher is characterized in that a feed hopper (11) is installed at the upper end position inside the crusher (1), a built-in center frame (110) is fixedly installed at the middle position inside the feed hopper (11), the two sides of the built-in center frame (110) are symmetrically and rotatably connected with material blocking inclined plates (111) through built-in connecting rotating shafts (113), built-in abutting springs (112) are connected between the material blocking inclined plates (111) at the two sides and the built-in center frame (110), a rotating motor (12) is fixedly installed on the outer wall of one side of the crusher (1), a crushing roller (13) is fixedly installed at the output end of the rotating motor (12), a servo motor (14) is fixedly installed below the rotating motor (12) on the outer wall of one side of the crusher (1), a rotating guide rod (141) is fixedly installed at the output end of the servo motor (14), and a fixed disc (145) is installed at the upper end of the servo motor (14), two corresponding limiting ring columns (144) are fixedly mounted on two sides of the upper end of the fixed disc (145), the two corresponding limiting ring columns (144) form a group, a hollow loop bar (143) is connected between each group of limiting ring columns (144) in a sliding mode, the hollow loop bar (143) is connected with the rotating guide rod (141) in a sliding mode in a sleeved mode, edge-mounted sliding discs (16) are fixedly mounted on two sides of the interior of the crushing device (1), a vibration frame (17) is connected between the two corresponding edge-mounted sliding discs (16) in a sliding mode, a screen (19) is fixedly connected to the interior of the vibration frame (17), and a plurality of buffer springs (18) are fixedly connected between two sides of the vibration frame (17) and the edge-mounted sliding discs (16);
a stepping motor (21) is fixedly installed at the upper end position inside the mixing device (2), a control panel (22) is fixedly installed at the middle position of the annular outer surface of the mixing device (2), and a water outlet valve pipe is fixedly installed at the lower end position of the annular outer surface of the mixing device (2);
it has apron board (31) to equally divide device (3) up end fixed mounting, it has set up avris spout (33) to equally divide device (3) one side, the terminal surface is located avris spout (33) lower extreme position department and rotates and be connected with and rotate fan-shaped wheel (35) before equally dividing device (3), the terminal surface is close to upper end corner position department fixed mounting and has electric telescopic handle (34) before equally dividing device (3), electric telescopic handle (34) output end fixed mounting has built-in movable push rod (36), the equal fixed hollow slide board (38) of putting in both sides of equally dividing device (3) inside fixed mounting, two are corresponding sliding connection has built-in movable scraper blade (37) between the fixed hollow slide board (38) of putting in the limit, terminal surface fixed mounting has a plurality of to put under built-in movable scraper blade (37) scrapes material tooth (39), built-in movable scraper blade (37) one side end face intermediate position department fixed mounting has put connection pinion rack (310), divide equally device (3) preceding terminal surface opposite side corner position department fixed mounting have control panel (32), built-in movable push rod (36) and rotate sliding connection between fan-shaped wheel (35), divide equally device (3) preceding terminal surface intermediate position department fixed mounting have the board of block that supplies to rotate fan-shaped wheel (35) installation, it is connected with the connection pivot to rotate between fan-shaped wheel (35) and the board of block, rotate fan-shaped wheel (35) and put with the limit and be connected the meshing between pinion rack (310), and put sliding connection between connection pinion rack (310) and avris spout (33) on the limit.
3. The method for preparing the environment-friendly building cement as claimed in claim 2, wherein notches for moving the material blocking inclined plates (111) are formed in both sides of the interior of the built-in center frame (110), the number of the crushing rollers (13) is two, and the two corresponding crushing rollers (13) are connected in a meshing manner.
4. The method for preparing the environment-friendly building cement as claimed in claim 2, wherein the position of the vibration frame (17) corresponds to the position of the blanking disc (15), and a connecting rotating shaft is rotatably connected between the vibration frame (17) and the pulling rod (142).
5. The method as claimed in claim 2, wherein the rotational speed of the rotary motor (12) in step S1 is set at 200-350r/min, and the rotational speed of the servo motor (14) in step S2 is set at 250-350 r/min.
6. The method for preparing environmental protection building cement as claimed in claim 2, wherein the step S3 is performed by setting the rotation speed of the stepper motor (21) inside at 230-350r/min, and the working temperature inside the mixing device (2) is set at 85-95 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210084663.0A CN114315186A (en) | 2022-01-25 | 2022-01-25 | Environment-friendly building cement and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210084663.0A CN114315186A (en) | 2022-01-25 | 2022-01-25 | Environment-friendly building cement and preparation method thereof |
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| CN114315186A true CN114315186A (en) | 2022-04-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114833066A (en) * | 2022-05-10 | 2022-08-02 | 马鞍山永阳食品有限公司 | Crushed aggregates collection device is used in rice crust production |
| CN118002284A (en) * | 2024-04-08 | 2024-05-10 | 三亚华盛水泥粉磨有限公司 | Cement clinker crushing system applied to cement production |
| CN118002284B (en) * | 2024-04-08 | 2024-06-21 | 三亚华盛水泥粉磨有限公司 | Cement clinker crushing system applied to cement production |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4083730A (en) * | 1975-07-22 | 1978-04-11 | Perlmooser Zementwerke A.G. | Cement, process and device for its production |
| CN103833247A (en) * | 2014-01-21 | 2014-06-04 | 北京科技大学 | Method of firing to produce cement by utilization of lime dried sludge |
| CN106277870A (en) * | 2016-08-25 | 2017-01-04 | 北海金匠水泥制品有限责任公司 | A kind of clinker formula having good stability |
| CN109851254A (en) * | 2019-01-04 | 2019-06-07 | 铜陵上峰水泥股份有限公司 | A kind of cement that impermeability is high |
| CN215234452U (en) * | 2021-01-31 | 2021-12-21 | 安徽傲阳建筑工程有限公司 | Novel residue treatment for construction engineering device |
| CN215480603U (en) * | 2021-08-18 | 2022-01-11 | 上海大宇电力设备检修安装有限公司 | Translation drying mechanism based on titanium gypsum preparation |
-
2022
- 2022-01-25 CN CN202210084663.0A patent/CN114315186A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4083730A (en) * | 1975-07-22 | 1978-04-11 | Perlmooser Zementwerke A.G. | Cement, process and device for its production |
| CN103833247A (en) * | 2014-01-21 | 2014-06-04 | 北京科技大学 | Method of firing to produce cement by utilization of lime dried sludge |
| CN106277870A (en) * | 2016-08-25 | 2017-01-04 | 北海金匠水泥制品有限责任公司 | A kind of clinker formula having good stability |
| CN109851254A (en) * | 2019-01-04 | 2019-06-07 | 铜陵上峰水泥股份有限公司 | A kind of cement that impermeability is high |
| CN215234452U (en) * | 2021-01-31 | 2021-12-21 | 安徽傲阳建筑工程有限公司 | Novel residue treatment for construction engineering device |
| CN215480603U (en) * | 2021-08-18 | 2022-01-11 | 上海大宇电力设备检修安装有限公司 | Translation drying mechanism based on titanium gypsum preparation |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114833066A (en) * | 2022-05-10 | 2022-08-02 | 马鞍山永阳食品有限公司 | Crushed aggregates collection device is used in rice crust production |
| CN118002284A (en) * | 2024-04-08 | 2024-05-10 | 三亚华盛水泥粉磨有限公司 | Cement clinker crushing system applied to cement production |
| CN118002284B (en) * | 2024-04-08 | 2024-06-21 | 三亚华盛水泥粉磨有限公司 | Cement clinker crushing system applied to cement production |
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