CN109530059B - Calcium carbonate drying method - Google Patents
Calcium carbonate drying method Download PDFInfo
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- CN109530059B CN109530059B CN201811362923.6A CN201811362923A CN109530059B CN 109530059 B CN109530059 B CN 109530059B CN 201811362923 A CN201811362923 A CN 201811362923A CN 109530059 B CN109530059 B CN 109530059B
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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
- B02C21/00—Disintegrating plant with or without drying of the material
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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
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
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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
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/067—Tub-grinders
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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
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/08—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers
- B02C18/10—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives within vertical containers with drive arranged above container
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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
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/18—Knives; Mountings thereof
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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
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/22—Feed or discharge means
- B02C18/2216—Discharge means
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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
- B02C18/00—Disintegrating by knives or other cutting or tearing members which chop material into fragments
- B02C18/06—Disintegrating by knives or other cutting or tearing members which chop material into fragments with rotating knives
- B02C18/16—Details
- B02C18/24—Drives
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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
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
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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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/10—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member
- B02C4/12—Crushing or disintegrating by roller mills with a roller co-operating with a stationary member in the form of a plate
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The invention discloses a calcium carbonate drying method, which comprises the following steps: step 1: crushing calcium carbonate; step 2: conveying the calcium carbonate crushed in the step 1 to a drying device through a spiral feeder for drying; the calcium carbonate is crushed and ground before being dried, the calcium carbonate with large volume is crushed into particles or powder with small volume, then the calcium carbonate is sent to a drying device for drying, and the calcium carbonate is dried after passing through the crushing device, so that the drying speed can be effectively improved, the drying time is shortened, and the economic benefit can be effectively improved.
Description
Technical Field
The invention relates to the technical field of calcium carbonate drying, in particular to a calcium carbonate drying method.
Background
Calcium carbonate is an inorganic compound commonly known as limestone, stone powder, marble, calcite, and is a compound having the chemical formula CaCO3Neutral, substantially insoluble in water, soluble in acid. It is a common substance on earth, exists in aragonite, calcite, chalk, limestone, marble, travertine and other rocks, and is also a main component of animal bones or shells. Calcium carbonate is an important building material, has wide industrial application, and is a common reagent (commonly used for generating CO by reacting with hydrochloric acid) in the chemistry of the first high school and the middle school2Etc.).
In the design of a calcium carbonate production device, in order to enable drying to be carried out more quickly, calcium carbonate needs to be crushed, calcium carbonate with larger volume is crushed into calcium carbonate with smaller volume, and then the calcium carbonate is dried; how to improve the drying speed and the drying efficiency when drying the calcium carbonate is a problem to be solved.
Disclosure of Invention
The invention aims to provide a calcium carbonate drying method, which can effectively improve the drying efficiency, reduce the drying time of calcium carbonate, effectively improve the production efficiency and improve the economic benefit.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
a calcium carbonate drying method comprises the following steps:
step 1: crushing calcium carbonate;
step 2: conveying the calcium carbonate crushed in the step 1 to a drying device through a spiral feeder for drying;
the method is characterized in that: the step 1 of crushing the calcium carbonate comprises the following steps:
the calcium carbonate is put into a crushing device for crushing, the crushing device comprises a shell provided with a feed inlet and a discharge outlet, and further comprises a crushing barrel, a cutter, a transmission shaft, a crushing disc and a driving device, the crushing barrel is hollow and round platform-shaped, the large end of the crushing barrel faces upwards, the inner side wall of the crushing barrel is provided with a spiral raised convex tooth, the cutter is installed on the transmission shaft, the crushing disc is positioned at the small end of the crushing barrel and connected with the crushing disc, the crushing disc is provided with a first cutter, a gap between the lower end of the crushing disc and the side wall of the crushing barrel forms a blanking channel, and the driving device can drive the transmission shaft and the crushing barrel to rotate;
calcium carbonate enters the crushing barrel from the feeding hole, and is contacted with a rotary cutter for primary crushing; a part of the calcium carbonate after primary crushing moves towards the side wall of the crushing barrel and is in contact with the convex teeth on the inner side wall of the rotary crushing barrel for crushing; the other part of the calcium carbonate after the primary crushing is directly contacted with the crushing disc and the first cutter on the crushing disc for crushing, and the calcium carbonate is crushed in the crushing barrel through the cutter, the convex teeth and the first cutter and then is discharged from the discharging channel;
and (3) carrying out the step 2 treatment on the crushed calcium carbonate.
The crushing device further comprises a guide plate and a grinding plate, the guide plate and the grinding plate are obliquely arranged in the shell, the guide plate and the grinding plate are located below the crushing barrel and form a y shape, a first crushing device is arranged between the guide plate and the grinding plate and comprises a lead screw, a lead screw nut, a guide rod, a guide cylinder, a spring, a connecting rod, a fixed plate and a plurality of grinding rollers, the lead screw is horizontally arranged and is connected with a driving motor, the lead screw nut and the lead screw are matched with each other, the guide rod penetrates through the lead screw nut, the guide cylinder is arranged below the lead screw nut, the spring is arranged in the guide cylinder, the connecting rod extends into the guide cylinder and abuts against the spring, the fixed plate is arranged below the connecting rod and is parallel to the grinding plate, the grinding rollers are arranged on the fixed plate, and the grinding rollers can rotate; a first sensor and a second sensor are arranged on the guide rod, and both the first sensor and the second sensor are connected with a driving motor;
calcium carbonate falling from the blanking channel falls on the guide plate and enters the grinding plate along the guide plate, the calcium carbonate slides downwards along the grinding plate, the driving motor drives the lead screw nut to move on the lead screw, the lead screw nut drives the fixed plate to move, and the grinding roller arranged below the fixed plate presses on the grinding plate to grind the calcium carbonate; when the screw nut is close to the first sensor, the driving motor is positively rotated into reversely rotated; when the lead screw nut is close to the second sensor, the driving motor is reversely rotated to be forwardly rotated, the lead screw nut moves back and forth, and the grinding roller grinds calcium carbonate in a reciprocating manner.
And the grinding plate is provided with a vibration motor.
Grinding plate below is equipped with the sieve, and the sieve slope sets up, and sieve extreme low position is equipped with the feed back export with casing hookup location, and the grinding plate highest point is equipped with the feed back import with casing hookup location, is connected through a screw feeder between feed back export and the feed back import.
The rotating direction of the transmission shaft is different from that of the crushing barrel.
The rotating speed of the transmission shaft is different from that of the crushing barrel.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention firstly crushes calcium carbonate, crushes calcium carbonate with larger volume by using a crushing device, changes the calcium carbonate with larger volume into calcium carbonate powder or particles with smaller volume, can effectively ensure the drying effect of the calcium carbonate when drying, can greatly improve the drying speed of the calcium carbonate, reduce the drying time, further ensure the production efficiency and improve the economic benefit.
2. Calcium carbonate entering the crushing barrel firstly contacts with the cutter on the transmission shaft, and is crushed under the action of the cutter, when the cutter is crushed, one part of calcium carbonate moves towards the side wall of the crushing barrel and then contacts with the convex teeth arranged on the inner side wall of the crushing barrel, the crushing barrel rotates to crush the calcium carbonate close to the crushing barrel again, the other part of calcium carbonate directly falls on the crushing disk, the calcium carbonate is subjected to friction force instantly when contacting with the crushing disk, and can be twisted and crushed, meanwhile, the first cutter on the crushing disk crushes the calcium carbonate, so that the cutter, the crushing disk, the first cutter, the crushing barrel, the convex teeth and other parts cooperate together, the calcium carbonate can be fully crushed, the crushed calcium carbonate is discharged from the discharging channel, and the discharging channel has a certain width, so that the calcium carbonate can be primarily screened, larger calcium carbonate can be remained in the grinding barrel for continuous grinding, and smaller calcium carbonate can be directly discharged; in the crushing process, the calcium carbonate moves violently and randomly in the crushing barrel, so that the calcium carbonate can be fully crushed by the cutter, the first cutter and the convex teeth, and the crushing effect of the calcium carbonate is effectively improved; calcium carbonate can be smashed fast in smashing the bucket, and the drying time when can the follow-up drying of effectual reduction guarantees follow-up dry drying effect.
3. The calcium carbonate falling from the feeding channel falls on the guide plate, then enters the grinding plate along the guide plate, slides downwards along the grinding plate, and is ground and crushed again under the action of the first crushing device, the fixing plate is arranged below the connecting rod and is parallel to the grinding plate, the grinding rollers are arranged on the fixing plate, each grinding roller can rotate, so that the lead screw nut can move on the lead screw under the drive of the driving motor, the first sensor and the second sensor are used for detecting whether the lead screw nut is in place, when the lead screw nut is close to the first sensor, the forward rotating driving motor is changed into reverse rotation, when the lead screw nut is close to the second sensor, the reverse rotating driving motor is changed into forward rotation, so that the reciprocating motion of the lead screw nut on the lead screw is realized, when the lead screw nut moves, the fixing plate is driven by the connecting rod, the grinding roller is arranged above the grinding plate to grind and crush calcium carbonate, the fixing plate and the grinding plate are parallel to each other, the grinding roller on the fixing plate can be tightly pressed on the grinding plate under the action of the spring, when the lead screw nut moves, the connecting rod drives the fixing plate to move to grind and crush the calcium carbonate on the grinding plate, meanwhile, in the moving process, the grinding plate is obliquely arranged, when the fixing plate moves rightwards, the spring is extruded, the force of the grinding roller on the fixing plate on the grinding plate is larger, when the fixing plate moves leftwards, the spring gradually extends, the force of the grinding roller on the fixing plate on the grinding plate is reduced, the reciprocating grinding and crushing are carried out in such a way, the calcium carbonate with smaller volume can be ground, the calcium carbonate becomes calcium carbonate powder or particles, and the subsequent drying process can be ensured to be quicker, the drying time is shorter, thereby improving the economic benefit.
4. The vibrating motor is arranged on the grinding plate, so that the calcium carbonate on the grinding plate can continuously slide downwards, and the smooth grinding process is ensured.
5. The sieve plate is arranged below the grinding plate, the sieve plate is arranged in an inclined manner, the connecting position of the lowest position of the sieve plate and the shell is provided with the feed back outlet, the connecting position of the highest position of the grinding plate and the shell is provided with the feed back inlet, the feed back outlet and the feed back inlet are connected through the first spiral feeder, so that ground and crushed calcium carbonate can be screened, calcium carbonate with smaller volume can be screened, calcium carbonate which does not meet the requirement returns to the grinding plate again under the action of the first spiral feeder to be ground and crushed, the quality of the calcium carbonate is ensured, the calcium carbonate is basically uniform in size, calcium carbonate with larger volume cannot be contained, the calcium carbonate is ensured to be in the drying device, the drying time is shorter, and the drying speed is higher.
6. The rotating direction of the transmission shaft is different from that of the crushing barrel; the rotating speed of the transmission shaft is different from that of the crushing barrel, so that the crushing effect of calcium carbonate can be further ensured, the calcium carbonate is crushed to be smaller, and the subsequent drying is facilitated.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Reference numerals: 1 shell, 101 feed inlet, 102 discharge outlet, 2 crushing barrel, 3 cutters, 4 transmission shafts, 5 crushing disc, 6 convex teeth, 7 first cutters, 8 blanking channel, 9 annular boss, 10 supporting piece, 11 reducing motor, 12 first belt pulley, 13 third belt pulley, 14 second belt pulley, 15 fourth belt pulley, 16 rotating shaft, 17 driving gear, 18 meshing teeth, 19 guide plate, 20 grinding plate, 21 driving motor, 22 guide rod, 23 lead screw, 24 first sensor, 25 lead screw nut, 26 second sensor, 27 fixing plate, 28 guide cylinder, 29 connecting rod, 30 grinding roller, 31 vibrating motor, 32 sieve plate, 33 return outlet, 34 return inlet, 35 first driving motor, 36 first rotating shaft, 37 outer cylinder, 38 helical blade, 39 spring, 40 helical feeder, 41 drying device.
Detailed Description
The present invention will be further described with reference to the following examples, which are intended to illustrate only some, but not all, of the embodiments of the present invention. Based on the embodiments of the present invention, other embodiments used by those skilled in the art without any creative effort belong to the protection scope of the present invention.
A calcium carbonate drying method comprises the following steps:
step 1: crushing calcium carbonate;
step 2: the calcium carbonate powder obtained by pulverization in step 1 is conveyed to a drying device 41 through a screw feeder 40 and dried.
Before the step 2, crushing the calcium carbonate with larger volume into particles or powder with smaller volume by a crushing device, and directly conveying the particles or powder into a drying device 41 for drying by a spiral screw feeder 40; crushing by adopting a crushing device during crushing; the invention is further illustrated by reference to the following examples.
Example 1
The crushing device comprises a shell 1, wherein a feeding hole 101 and a discharging hole 102 are formed in the shell 1, the bottom of the shell 1 is conical, and the discharging hole 102 is formed in the bottom of the shell 1; still including smashing bucket 2, cutter 3, transmission shaft 4, crushing dish 5 and drive arrangement in this embodiment, smash 2 inside hollows of bucket and be the round platform form, smash 2 main aspects of bucket up, be equipped with on the inside wall of smashing bucket 2 and be spiral lift's dogtooth 6, cutter 3 installs on transmission shaft 4, and crushing dish 5 is located 2 tip of smashing bucket, and transmission shaft 4 is connected with crushing dish 5, is equipped with first cutter 7 on crushing dish 5, and the gap formation unloading passageway 8 between 5 lower extremes of crushing dish and the 2 lateral walls of crushing bucket, and drive arrangement can drive transmission shaft 4 and smash 2 rotations of bucket.
It should be noted that, in order to enable the pulverizing barrel 2 to rotate, an annular boss 9 is arranged on the side surface of the upper end of the pulverizing barrel 2, a support member 10 is arranged on the top of the casing, a groove matched with the annular boss 9 is arranged on the support member 10, and the pulverizing barrel 2 rotates through the matching of the annular boss 9 and the groove.
Wherein, drive arrangement includes gear motor 11, first belt pulley 12, second belt pulley 14, third belt pulley 13, fourth belt pulley 15, driving gear 17 and pivot 16, gear motor 11 installs on casing 1, be equipped with meshing tooth 18 at 2 outer walls of crushing bucket, first belt pulley 12 is installed on transmission shaft 4, third belt pulley 13 is installed on pivot 16, second belt pulley 14 and fourth belt pulley 15 are installed on gear motor 11's output shaft, first belt pulley 12 passes through the belt with second belt pulley 14 and is connected, third belt pulley 13 also passes through the belt with fourth belt pulley 15 and is connected, driving gear 17 is installed in pivot 16, and make driving gear 17 and meshing tooth 18 intermeshing.
Preferably, an inclined guide plate 19 and a grinding plate 20 are arranged in the housing 1, the guide plate 19 and the grinding plate 20 are located below the pulverizing barrel 2, the guide plate 19 and the grinding plate 20 form a y-shape, a first crushing device is arranged between the guide plate 19 and the grinding plate 20, the first crushing device comprises a lead screw 23, a lead screw nut 25, a guide rod 22, a guide cylinder 28, a spring 39, a connecting rod 29, a fixing plate 27 and a plurality of crushing rollers 30, the lead screw 23 is horizontally arranged, the lead screw 23 is connected with a driving motor 21, the lead screw nut 25 is matched with the lead screw 23, the guide rod 22 passes through the lead screw nut 25, the guide cylinder 28 is mounted below the lead screw nut 25, the spring 39 is mounted in the guide cylinder 28, the connecting rod 29 extends into the guide cylinder 28 and abuts against the spring 39, the fixing plate 27 is mounted below the connecting rod 29 and is parallel to the grinding plate 20, the crushing rollers 30 are mounted on the fixing plate, each rolling roller 30 is rotatable; a first sensor 24 and a second sensor 26 are arranged on the guide rod 22, and both the first sensor 24 and the second sensor 26 are connected with the driving motor 21.
Preferably, the grinding plate 20 is provided with a vibration motor 31.
Further optimize, lapping plate 20 below is equipped with sieve 32, and sieve 32 slope sets up, and sieve 32 lowest position and 1 hookup location of casing are equipped with feed back export 33, and lapping plate 20 highest point and 1 hookup location of casing are equipped with feed back import 34, are connected through first screw feeder between feed back export 33 and the feed back import 34.
Wherein, first screw feeder includes first driving motor 35, urceolus 37, first pivot 36, and urceolus 37 is installed outside casing 1, is equipped with helical blade 38 along its axial direction on the first pivot 36, and first pivot 36 is installed in urceolus 37, and first driving motor 35 is connected with first pivot 36, and first driving motor 35 can drive first pivot 36 and rotate, is equipped with import and export on the urceolus 37, and the import links to each other with feed back export 33, and the export links to each other with feed back import 34.
Further, the discharge port 102 is connected to the drying device 41 through the screw feeder 40.
Example 2
This embodiment is substantially the same as embodiment 1, except that: the rotating direction of the transmission shaft 4 is different from that of the crushing barrel 2; the rotating speed of the transmission shaft 4 is different from that of the crushing barrel 2.
In order to ensure that the rotating speed of the transmission shaft 4 is different from that of the crushing barrel 2 in practice, the transmission ratio is only required to be different.
In order to ensure that the rotation direction of the transmission shaft 4 is different from the rotation direction of the crushing barrel 2, a reduction motor 11 can be additionally arranged on the basis of the embodiment 1, so that the fourth belt pulley 15 can be arranged on the output shaft of the newly arranged reduction motor 11, only the rotation speed and the rotation direction of the two reduction motors 11 need to be controlled, and the control process is simple.
The drying process of the invention is as follows: firstly, calcium carbonate is put into a crushing barrel 2, the calcium carbonate is firstly contacted with a cutter 3 on a transmission shaft 4 and crushed under the action of the cutter 3, when the cutter 3 crushes the calcium carbonate, a part of the calcium carbonate moves towards the side wall of the crushing barrel 2 and then is contacted with a convex tooth 6 arranged on the inner side wall of the crushing barrel 2, the crushing barrel 2 rotates to crush the calcium carbonate close to the crushing barrel 2 again, the other part of the calcium carbonate directly falls on a crushing disc 5, the calcium carbonate is twisted and crushed by the friction force at the moment of contacting with the crushing disc 5, and simultaneously, a first cutter 7 on the crushing disc 5 crushes the calcium carbonate, so that the calcium carbonate can be fully crushed under the cooperation of the cutter 3, the crushing disc 5, the first cutter 7, the crushing barrel 2, the convex tooth 6 and other parts, the crushed calcium carbonate is discharged from a discharging channel 8, because the blanking channel 8 has a certain width, the calcium carbonate can be primarily screened for one time, larger calcium carbonate can be remained in the grinding barrel 2 for continuous grinding, and smaller calcium carbonate can be directly discharged; and in the process of crushing, the calcium carbonate violently moves randomly in the crushing barrel 2, so that the calcium carbonate can be fully crushed by the cutter 3, the first cutter 7 and the convex teeth 6, and meanwhile, the calcium carbonate is crushed by mutual impact.
The calcium carbonate falling from the discharging channel 8 falls on the guide plate 19 and then enters the grinding plate 20 along the guide plate 19, and slides down along the grinding plate 20, the first crushing device will grind and crush the calcium carbonate again, the fixing plate 27 is installed below the connecting rod 29 and parallel to the grinding plate 20, the grinding rollers 30 are installed on the fixing plate 27, each grinding roller 30 can rotate, the lead screw nut 25 is moved on the lead screw 23 by the driving motor 21, the first sensor 24 and the second sensor 26 are used for detecting whether the lead screw nut 25 is in place, the driving motor 21 in forward rotation becomes reverse rotation when the lead screw nut 25 is close to the first sensor 24, the driving motor 21 in reverse rotation becomes forward rotation when the lead screw nut 25 is close to the second sensor 26, so as to realize the reciprocating movement of the lead screw nut 25 on the lead screw 23, and at the same time as the lead screw nut 25 moves, make fixed plate 27 under the drive of connecting rod 29, grinding roller 30 grinds the crushing calcium carbonate in the top of lapping plate 20, because fixed plate 27 and lapping plate 20 are parallel to each other, simultaneously under the effect of spring 39, make the grinding roller 30 on fixed plate 27 tightly press on lapping plate 20, when screw nut 25 moved, connecting rod 29 takes fixed plate 27 to move and grinds the calcium carbonate on lapping plate 20, simultaneously, in this one process of removal, because lapping plate 20 sets up obliquely, when fixed plate 27 moved to the right, spring 39 will be squeezed, make the power that grinding roller 30 pressed on lapping plate 20 on fixed plate 27 bigger, when fixed plate 27 moved to the left, spring 39 stretches gradually, make the power that grinding roller 30 pressed on lapping plate 20 on fixed plate 27 reduce, so carry out reciprocal grinding and crushing to calcium carbonate.
Under the action of the vibration motor 31, the calcium carbonate on the grinding plate 20 can smoothly slide down, so that the grinding and crushing are ensured.
Be equipped with sieve 32 in lapping plate 20 below, sieve 32 slope sets up, sieve 32 lowest position and 1 hookup location of casing are equipped with feed back export 33, lapping plate 20 highest point and 1 hookup location of casing are equipped with feed back import 34, be connected through first screw feeder between feed back export 33 and the feed back import 34, can filter the calcium carbonate after grinding crushing like this, less calcium carbonate that meets the requirements discharges, and the calcium carbonate that does not meet the requirements returns again and grinds on lapping plate 20 under first screw feeder's the effect and smashes, the quality of calcium carbonate has been guaranteed, make its size basically even, can not contain the great calcium carbonate of volume.
The calcium carbonate crushed and ground by the crushing device is conveyed into the drying device 41 by the screw feeder 40 to be dried, and the whole crushing, grinding and drying process can be completed.
Smash calcium carbonate through reducing mechanism to can the dry efficiency of effectual improvement calcium carbonate.
Claims (3)
1. A calcium carbonate drying method comprises the following steps:
step 1: crushing calcium carbonate;
step 2: conveying the calcium carbonate crushed in the step 1 to a drying device through a spiral feeder for drying;
the method is characterized in that: the step 1 of crushing the calcium carbonate comprises the following steps:
the calcium carbonate is put into a crushing device for crushing, the crushing device comprises a shell provided with a feed inlet and a discharge outlet, and further comprises a crushing barrel, a cutter, a transmission shaft, a crushing disc and a driving device, the crushing barrel is hollow and round platform-shaped, the large end of the crushing barrel faces upwards, the inner side wall of the crushing barrel is provided with a spiral raised convex tooth, the cutter is installed on the transmission shaft, the crushing disc is positioned at the small end of the crushing barrel and connected with the crushing disc, the crushing disc is provided with a first cutter, a gap between the lower end of the crushing disc and the side wall of the crushing barrel forms a blanking channel, and the driving device can drive the transmission shaft and the crushing barrel to rotate; in order to enable the crushing barrel to rotate, an annular boss is arranged on the side face of the upper end of the crushing barrel, a supporting piece is arranged at the top of the shell, a groove matched with the annular boss is formed in the supporting piece, and the crushing barrel rotates through the matching of the annular boss and the groove;
calcium carbonate enters the crushing barrel from the feeding hole, and is contacted with a rotary cutter for primary crushing; a part of the calcium carbonate after primary crushing moves towards the side wall of the crushing barrel and is in contact with the convex teeth on the inner side wall of the rotary crushing barrel for crushing; the other part of the calcium carbonate after the primary crushing is directly contacted with the crushing disc and the first cutter on the crushing disc for crushing, and the calcium carbonate is crushed in the crushing barrel through the cutter, the convex teeth and the first cutter and then is discharged from the discharging channel;
carrying out the step 2 treatment on the crushed calcium carbonate;
the crushing device further comprises a guide plate and a grinding plate, the guide plate and the grinding plate are obliquely arranged in the shell, the guide plate and the grinding plate are located below the crushing barrel and form a y shape, a first crushing device is arranged between the guide plate and the grinding plate and comprises a lead screw, a lead screw nut, a guide rod, a guide cylinder, a spring, a connecting rod, a fixed plate and a plurality of grinding rollers, the lead screw is horizontally arranged and is connected with a driving motor, the lead screw nut and the lead screw are matched with each other, the guide rod penetrates through the lead screw nut, the guide cylinder is arranged below the lead screw nut, the spring is arranged in the guide cylinder, the connecting rod extends into the guide cylinder and abuts against the spring, the fixed plate is arranged below the connecting rod and is parallel to the grinding plate, the grinding rollers are arranged on the fixed plate, and the grinding rollers can rotate; a first sensor and a second sensor are arranged on the guide rod, and both the first sensor and the second sensor are connected with a driving motor;
calcium carbonate falling from the blanking channel falls on the guide plate and enters the grinding plate along the guide plate, the calcium carbonate slides downwards along the grinding plate, the driving motor drives the lead screw nut to move on the lead screw, the lead screw nut drives the fixed plate to move, and the grinding roller arranged below the fixed plate presses on the grinding plate to grind the calcium carbonate; when the screw nut is close to the first sensor, the driving motor is positively rotated into reversely rotated; when the lead screw nut is close to the second sensor, the driving motor is driven to rotate reversely to rotate forwards, so that the lead screw nut moves back and forth, and the grinding roller grinds calcium carbonate in a reciprocating manner;
the grinding plate is provided with a vibration motor;
grinding plate below is equipped with the sieve, and the sieve slope sets up, and sieve extreme low position is equipped with the feed back export with casing hookup location, and the grinding plate highest point is equipped with the feed back import with casing hookup location, is connected through a screw feeder between feed back export and the feed back import.
2. The method for drying calcium carbonate according to claim 1, wherein: the rotating direction of the transmission shaft is different from that of the crushing barrel.
3. The method for drying calcium carbonate according to claim 1, wherein: the rotating speed of the transmission shaft is different from that of the crushing barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811362923.6A CN109530059B (en) | 2018-11-16 | 2018-11-16 | Calcium carbonate drying method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811362923.6A CN109530059B (en) | 2018-11-16 | 2018-11-16 | Calcium carbonate drying method |
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| CN109530059A CN109530059A (en) | 2019-03-29 |
| CN109530059B true CN109530059B (en) | 2021-06-11 |
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|---|---|---|---|---|
| CN111111859A (en) * | 2019-12-25 | 2020-05-08 | 应元芬 | Corn processing is with breaker that skins |
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