CN220803689U - Reducing mechanism is used in calcium carbonate production - Google Patents

Abstract

The utility model relates to the technical field of calcium carbonate production, in particular to a crushing device for calcium carbonate production, which comprises a first crushing assembly and a second crushing assembly which are arranged in a box body, wherein a storage box is arranged in the box body, a vibrating screen plate is arranged between the storage box and the first crushing assembly, a circulating assembly is arranged at the bottom of the second crushing assembly, the free end of the circulating assembly is arranged between the first crushing assembly and the vibrating screen plate, one end of the vibrating screen plate is provided with a drainage plate, one end of the drainage plate is arranged at one side of the second crushing assembly, and a discharge chute is arranged at the top of the box body. The aim is that: the device is used for solving the problems that the prior device can not thoroughly pulverize the calcium carbonate, is troublesome if pulverizing is carried out again, has different pulverizing particle sizes, and is mixed together to ensure that the pulverizing time is longer and the cost is increased.

Description

Reducing mechanism is used in calcium carbonate production

Technical Field

The utility model relates to the technical field of calcium carbonate production, in particular to a crushing device for calcium carbonate production.

Background

Calcium carbonate is an inorganic compound commonly called as limestone, stone powder, marble and calcite, is a compound, is an important building material, has wide industrial application, can be used as a leavening agent, a flour treatment agent, an anti-caking agent, an acidity regulator, a nutrition enhancer, a curing agent and the like, can be used as a feed nutrition enhancer, a filling material of rubber, an analysis reagent, a white filling material of plastics, paper, rubber, paint, ink and the like, and is used for manufacturing raw materials such as incense powder, powder cake, water powder, rouge and the like, and the calcium carbonate raw material needs to be subjected to preliminary processing before being used.

The calcium carbonate is coagulated into a block after production, and is generally crushed for convenience in packaging or downstream processes. Therefore, patent (application number: CN 201921973968.7) discloses a crushing calcium carbonate machine, which comprises a substrate, wherein a machine case is fixedly arranged at the top of the substrate, a feed hopper is fixedly arranged at the top of the machine case, a first driving motor is fixedly arranged on the left side and the right side of the machine case, a crushing roller penetrating through and extending to the back of the machine case is movably arranged on the front side of the machine case, the crushing roller is in transmission connection with the first driving motor through a driving mechanism, and lining plates are fixedly arranged on the left side and the right side of the inner wall of the machine case. This patent carries out twice crushing to calcium carbonate, reaches simple and convenient multiple kibbling effect. However, the calcium carbonate crushed by the device may still have missing calcium carbonate particles, which is troublesome if crushed again, and the crushed particles have different sizes, so that the time for crushing again is longer and the cost is increased due to the fact that the crushed particles are mixed together.

Disclosure of utility model

Accordingly, the present utility model is directed to a crushing device for calcium carbonate production, which is used for solving the problems that the conventional device pointed out in the background art may not completely crush the calcium carbonate, the crushing is troublesome if the crushing is performed again, the size of the crushed particles is different, the re-crushing time is long and the cost is increased due to the mixing together of the crushed particles.

The utility model solves the technical problems by the following technical means:

The utility model provides a reducing mechanism is used in calcium carbonate production, includes first crushing subassembly and the second crushing subassembly of installing in the box, be equipped with the containing box in the box, be equipped with vibrating screen plate between containing box and the first crushing subassembly, the bottom of second crushing subassembly is equipped with circulating assembly, circulating assembly's free end is established between first crushing subassembly and vibrating screen plate, vibrating screen plate's one end is equipped with the drainage board, one side at the second crushing subassembly is established to the one end of drainage board, the blowing groove has been seted up at the top of box.

Further, the first crushing assembly comprises a motor, a driving roller and a driven roller, the driving roller and the driven roller are all rotatably installed in the box body, the motor is fixedly installed on one side of the box body, an output shaft of the motor is fixedly connected with the driving roller, a driving gear is fixedly sleeved at one end, close to the motor, of the driving roller, a driven gear is fixedly sleeved at one end, close to the motor, of the driven roller, and the driving gear is meshed with the driven gear. When the device is used, the motor is started, the driving roller is driven to rotate through the output shaft of the motor, and then the driving roller drives the driven gear to rotate through the driving gear, so that the driven roller is driven to correspondingly rotate, the effect of opposite rotation of the driving roller and the driven roller is achieved, and the purpose of crushing calcium carbonate is achieved.

Further, a stop block is arranged on one side of the driving roller and one side of the driven roller, and the stop block is fixedly arranged on the inner wall of the box body. The device is used for preventing the calcium carbonate from sliding along the side edge of the driving roller or the driven roller, and avoids the phenomenon that the calcium carbonate directly falls on the vibrating screen plate without being crushed for the first time.

Further, the second crushing assembly comprises a mounting frame and a first hydraulic cylinder, wherein the crushing cylinder is fixedly arranged on the mounting frame, one side of the crushing cylinder is positioned at the bottom of the drainage plate, the first hydraulic cylinder is fixedly arranged in the box body, a connecting rod is fixedly connected with a piston rod of the first hydraulic cylinder, a crushing hammer is fixedly connected with a free end of the connecting rod, the crushing hammer is arranged in the crushing cylinder, an outlet is formed in the bottom of the crushing cylinder, and a switch piece is arranged at the outlet. When the device is used, the first hydraulic cylinder is started, the piston of the hydraulic cylinder drives the crushing hammer to move up and down, and therefore calcium carbonate at the bottom of the crushing cylinder is crushed again.

Further, the switch piece includes the extensible member and is used for sheltering from the baffle of export, the one end fixed mounting of extensible member is on the mounting bracket, the other end and baffle fixed connection. The setting like this, when needs are carried out the calcium carbonate in the crushing jar, start the extensible member, reach the effect of removal baffle to make the calcium carbonate discharge from the export.

Further, the section of the crushing cylinder is in a calabash shape. The setting like this, when the baffle that needs to remove the below will smash the interior calcium carbonate of jar and discharge, be convenient for divide into two spaces with smashing the jar through shifting up smashing the hammer for smash original calcium carbonate of jar along the export discharge, and follow the new calcium carbonate that the drainage board carried and then temporarily stay in the top of smashing the jar, do not mix with original calcium carbonate in the jar.

Further, the circulating assembly comprises a circulating pump, a first pipeline and a second pipeline, wherein the first pipeline and the second pipeline are respectively and fixedly connected to two ends of the circulating pump, the circulating pump is fixedly installed in the box body, the free end of the first pipeline is fixedly connected with a receiving tray, the receiving tray is installed on the installation frame and located at the bottom of the crushing cylinder, and the free end of the second pipeline is located at the top of the vibrating screen plate. The arrangement is such that the calcium carbonate from the comminution cylinder is conveyed to the vibrating screen plate in such a way that the calcium carbonate is screened again; meanwhile, the calcium carbonate which is not crushed thoroughly is conveyed into the crushing cylinder along the drainage plate again for crushing again, so that the purpose of thorough crushing is achieved.

Further, the both sides of vibrating screen board all fixedly connected with slider, the lift groove has all been seted up to the both sides of box, slider one end sets up in the lift groove. The vibration sieve plate is convenient to move up and down along the lifting groove and is prevented from moving left and right, so that the vibration sieve plate is free to shift.

Further, the containing box is internally and fixedly provided with a support, a second hydraulic cylinder is fixedly arranged on the support, a piston rod of the second hydraulic cylinder is fixedly connected with a vibrating ball, and the vibrating ball is contacted with the bottom of the vibrating screen plate. When the device is used, the second hydraulic cylinder is started, and the vibrating ball is enabled to move up and down through the piston of the second hydraulic cylinder, so that the vibrating screen plate vibrates up and down, and the effect of screening and conveying calcium carbonate on the vibrating screen plate is achieved.

Further, the bottom fixedly connected with protection casing of vibrating screen plate, the vibrating ball is located the protection casing. The setting reduces the probability that the calcium carbonate falling from the vibrating screen plate drifts to the piston rod of the second hydraulic cylinder, and achieves the effect of protecting the second hydraulic cylinder.

The utility model has the following advantages:

1. Through the mutual matching of the first crushing assembly, the second crushing assembly, the vibrating screen plate, the drainage plate and the circulating assembly, calcium carbonate is thoroughly crushed, the omission probability is reduced, and the crushed calcium carbonate meeting the requirement is not repeatedly crushed, so that the working time is shortened, the working efficiency is improved, and meanwhile, the working cost is also reduced;

2. Through the mutual matching of the material receiving disc, the first pipeline, the circulating pump, the second pipeline, the vibrating screen plate, the drainage plate, the baffle plate and the telescopic piece, the effect of circulating calcium carbonate is achieved, so that the calcium carbonate which does not meet the crushing requirement is repeatedly crushed, the problem that all the calcium carbonate needs to be crushed again because part of the calcium carbonate does not meet the crushing requirement is avoided, and the working efficiency is further improved;

3. Through setting up crushing jar into calabash form, be convenient for utilize crushing hammer to separate crushing jar into two spaces for crushing jar original calcium carbonate is discharged along the export, and along the new calcium carbonate that the drainage board carried over then temporarily stay in crushing jar top, not mix with crushing jar in original calcium carbonate, make at circulating calcium carbonate promptly and not influence the normal operating of other calcium carbonates, keep the continuity of process.

Drawings

FIG. 1 is a schematic structural view of a pulverizing apparatus for calcium carbonate production according to the present utility model;

FIG. 2 is a schematic view showing a first sectional structure of a pulverizing apparatus for calcium carbonate production of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A;

FIG. 4 is a schematic view showing a second cross-sectional structure of a pulverizing apparatus for calcium carbonate production of the present utility model;

fig. 5 is a schematic structural view of a second pulverizing unit in a pulverizing apparatus for calcium carbonate production according to the present utility model.

Wherein, the box body 1, the discharge chute 11 and the cover plate 12;

the grinding machine comprises a first grinding assembly 2, a motor 21, a stop block 22, a driving roller 23, a driven roller 24, a first mounting seat 25, a driving gear 26 and a driven gear 27;

The first hydraulic cylinder 31, the second mounting seat 32, the connecting rod 33, the crushing hammer 34, the crushing cylinder 35, the mounting frame 36, the outlet 37, the baffle 38 and the telescopic piece 39;

the circulating assembly 4, the receiving tray 41, the first pipeline 42, the circulating pump 43 and the second pipeline 44;

The storage box 5, the bracket 51, the second hydraulic cylinder 52, the vibrating ball 53, the protective cover 54, the vibrating screen plate 55, the sliding block 551, the lifting groove 552, the drainage plate 56 and the supporting frame 57.

Detailed Description

The following embodiments of the present utility model are described in terms of specific examples, and those skilled in the art will appreciate the advantages and capabilities of the present utility model from the disclosure herein. It should be noted that, the illustrations provided in the following embodiments are for illustration only, and are shown in schematic drawings, not physical drawings, and are not to be construed as limiting the utility model, and in order to better illustrate the embodiments of the utility model, certain components in the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; it will be appreciated by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

In the description of the present utility model, it should be understood that, if there are terms such as "upper", "lower", "left", "right", "front", "rear", etc., that indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is merely for convenience in describing the present utility model and simplifying the description, and it is not indicated or implied that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, so that the terms describing the positional relationships in the drawings are merely for exemplary illustration and are not to be construed as limitations of the present utility model, and that the specific meanings of the terms described above may be understood by those skilled in the art according to circumstances.

As shown in fig. 1-2, the crushing device for calcium carbonate production of the utility model comprises a first crushing component 2 and a second crushing component which are arranged in a box body 1, wherein a vibrating screen plate 55 is arranged below the first crushing component 2, one end of the vibrating screen plate 55 is provided with a drainage plate 56, one end of the drainage plate 56 is arranged above one side of the second crushing component, a containing box 5 is arranged below the vibrating screen plate 55, the drainage plate 56 is clamped on one side of the top of the containing box 5 and is obliquely arranged, a discharge chute 11 is formed in the top of the box body 1, during the use of the device, calcium carbonate is conveyed into the box body 1 along the discharge chute 11, the first crushing component is used for crushing calcium carbonate, the crushed calcium carbonate falls onto the vibrating screen plate 55, the crushed calcium carbonate is screened by the vibrating screen plate 55, the calcium carbonate with the diameter smaller than the through hole on the vibrating screen plate 55 directly falls into the containing box 5 below, and the calcium carbonate with the diameter larger than or equal to the through hole on the vibrating screen plate 55 enters the second crushing component through the drainage plate 56, and is crushed again.

As shown in fig. 1-2, in this embodiment, the first pulverizing assembly 2 includes a motor 21, a driving roller 23 and a driven roller 24, where the driving roller 23 and the driven roller 24 are both rotatably installed in the box 1, a first mounting seat 25 is fixedly installed on one side of the box 1 through bolts, the motor 21 is fixedly installed on the first mounting seat 25 through bolts, an output shaft of the motor 212 is in key connection with the driving roller 23, one end of the driving roller 23 is fixedly sleeved with a driving gear 26, one end of the driven roller 24 is fixedly sleeved with a driven gear 27, the driving gear 26 is meshed with the driven gear 27, the driving roller 23 and the driven roller 24 are contacted, when the apparatus is used, the motor 21 is started, the driving roller 23 drives the driven gear 27 to rotate through the output shaft of the motor 21, so as to drive the driven roller 24 to rotate correspondingly, and the effect that the driving roller 23 and the driven roller 24 rotate in opposite directions is achieved, i.e. the purpose of pulverizing calcium carbonate is achieved.

As shown in fig. 4, in this embodiment, a stopper 22 is disposed on one side of the driving roller 23 and one side of the driven roller 24, and the stopper 22 is fixedly mounted on the inner wall of the box 1 by bolts, so as to prevent calcium carbonate from sliding down along the side of the driving roller 23 or the driven roller 24, and avoid the phenomenon that the calcium carbonate falls on the vibrating screen plate 55 directly without being crushed for the first time.

As shown in fig. 2-3, in this embodiment, a plurality of supporting frames 57, preferably four, are fixedly installed in the case 1 through bolts, and the storage box 5 is clamped on the supporting frames 57, so that the storage box 5 is convenient to take. In this embodiment, the two sides of the vibrating screen plate 55 are welded with the sliding blocks 551, the two sides of the box body are provided with the lifting grooves 552, the sliding blocks 551 are movably arranged in the lifting grooves 552, so that the vibrating screen plate 55 can conveniently move up and down along the lifting grooves 552, the vibrating screen plate 55 is prevented from moving left and right, and random displacement is avoided.

As shown in fig. 4, in this embodiment, a bracket 51 is fixedly mounted in the storage box 5 through a bolt, a second hydraulic cylinder 52 is fixedly mounted on the bracket 51 through a bolt, a piston rod of the second hydraulic cylinder 52 is fixedly connected with a vibrating ball 53 through a screw, the vibrating ball 53 contacts with the bottom of the vibrating screen plate 55, when the device is used, the second hydraulic cylinder 52 is started, and the vibrating ball 53 moves up and down through the piston of the second hydraulic cylinder 52, so that the vibrating screen plate 55 vibrates up and down, and the effect of screening and conveying calcium carbonate on the vibrating screen plate 55 is achieved.

As shown in fig. 4, in this embodiment, the bottom of the vibrating screen plate 55 is clamped with the protective cover 54, the vibrating ball 53 is located in the protective cover 54, so as to reduce the probability that the calcium carbonate falling from the vibrating screen plate 55 drifts to the piston rod of the second hydraulic cylinder 52, and achieve the effect of protecting the second hydraulic cylinder 52.

As shown in fig. 4-5, in this embodiment, the second crushing assembly includes a mounting frame 36 and a first hydraulic cylinder 31, a crushing cylinder 35 is fixedly installed on the mounting frame 36, one end of a drainage plate 56 is disposed above the crushing cylinder 35, a second mounting seat 32 is fixedly installed in the box 1 through bolts, the first hydraulic cylinder 31 is fixedly installed on the second mounting seat 32 through bolts, a piston rod of the first hydraulic cylinder 31 is fixedly connected with a connecting rod 33 through bolts, a crushing hammer 34 is welded at a free end of the connecting rod 33, and the crushing hammer 34 is disposed in the crushing cylinder 35. When the device is used, the first hydraulic cylinder 31 is started, and the crushing hammer 34 is driven to move up and down by the piston of the hydraulic cylinder 31, so that the calcium carbonate at the bottom of the crushing cylinder 35 is crushed again.

In this embodiment, the bottom of smashing jar 35 has been seted up export 37, and export 37 department is equipped with the switch spare, and the switch spare includes telescopic member 39 and is used for sheltering from the baffle 38 of export, and bolt fixed mounting is passed through on mounting bracket 36 to the one end of telescopic member 39, and the other end passes through bolt fixed connection with baffle 38, when the calcium carbonate in smashing jar 35 needs to be carried away, starts telescopic member 39, reaches the effect of removal baffle 38 to make the calcium carbonate discharge from export 37.

In this embodiment, the telescopic member 39 may be an electric telescopic rod or an electric push rod, so as to facilitate the opening or closing of the outlet 37 by electric control. In this embodiment, the bottom of the crushing hammer 34 is matched with the outlet 37 and can be abutted against the baffle 38, so that the crushing hammer 34 does not have dead angles in crushing calcium carbonate, and the phenomenon that calcium carbonate falling into the gap of the outlet cannot be crushed by the crushing hammer 34 is avoided.

As shown in fig. 4-5, in this embodiment, the cross section of the crushing cylinder 35 is in a gourd shape, the minimum diameter of the whole middle part is equal to the diameter of the top of the crushing hammer 34, when the lower baffle 38 needs to be moved to discharge the calcium carbonate in the crushing cylinder 35, the first hydraulic cylinder 31 is started, the piston rod of the first hydraulic cylinder 31 drives the crushing hammer 34 to rise, so that the top of the crushing hammer 34 is abutted against the middle part of the crushing cylinder 35, and the condition that new calcium carbonate conveyed along the drainage plate 56 falls into the bottom of the crushing cylinder 35 and is discharged along the outlet 37 together with the original calcium carbonate is avoided, thereby increasing the workload; meanwhile, through the shape setting of the crushing cylinder 35, when the top of the crushing hammer 34 is abutted to the middle part of the crushing cylinder 35, a temporary storage space is reserved for the newly conveyed calcium carbonate on the drainage plate 56, and the phenomenon that the calcium carbonate falls outside the crushing cylinder 35 and is wasted is avoided.

As shown in fig. 4, the bottom of the pulverizing cylinder 35 is provided with a circulation assembly 4, in this embodiment, the circulation assembly 4 includes a circulation pump 43, a first pipe 42 and a second pipe 44, the first pipe 42 and the second pipe 44 are respectively screwed at two ends of the circulation pump 43, the circulation pump 43 is fixedly mounted in the box 1 by bolts and is located below the storage box 5, a material receiving tray 41 is screwed at a free end of the first pipe 42, the material receiving tray 41 is fixedly mounted on the mounting frame 36 and is located at the bottom of the pulverizing cylinder 35, and a free end of the second pipe 44 is located above the vibration screen plate 55.

As shown in fig. 4, when the device is used, the circulating pump 43 is started, calcium carbonate falls into the receiving tray 41 from the outlet 37, and then is conveyed onto the vibrating screen plate 55 along the first pipeline 42 and the second pipeline 44 under the action of the circulating pump 43, so that calcium carbonate smaller than the diameter of the through hole on the vibrating screen plate 55 directly falls into the receiving box 5 below, and calcium carbonate larger than or equal to the diameter of the through hole on the vibrating screen plate 55 enters the crushing cylinder 35 again through the drainage plate 56 for crushing again until the calcium carbonate can fall into the receiving box 5 from the through hole on the vibrating screen plate 55, so that the calcium carbonate is thoroughly crushed, the omission probability is reduced, the crushing of the calcium carbonate meeting the requirement is not repeated, the working time is shortened, the working efficiency is improved, and the working cost is reduced.

In this embodiment, as shown in fig. 4, the cross section of the receiving tray 41 is in an inverted trapezoid, and the maximum diameter of the receiving tray 41 is larger than the diameter of the outlet 37, so that the probability that calcium carbonate falls from the outlet 37 to other places is reduced, and waste is reduced.

In this embodiment, as shown in fig. 1, an access hole is formed on one side of the case 1, and a cover plate 12 is hinged to the access hole, so that the installation and maintenance of the mechanism in the case 1 are facilitated.

The application method of the utility model is as follows:

When the calcium carbonate crushing machine is used, calcium carbonate is firstly conveyed into the box body 1 along the discharging groove 11, meanwhile, the motor 21 is started, the driving roller 23 is driven to rotate through the output shaft of the motor 21, the driving roller 23 drives the driven gear 27 to rotate through the driving gear 26, and accordingly the driven roller 24 is driven to rotate correspondingly, so that the effect that the driving roller 23 and the driven roller 24 rotate oppositely is achieved, and the purpose of crushing the calcium carbonate is achieved. Then, the crushed calcium carbonate falls onto the vibrating screen plate 55, and simultaneously, the second hydraulic cylinder 52 is started, the vibrating ball 53 is made to move up and down by the piston of the second hydraulic cylinder 52, so that the vibrating screen plate 55 vibrates up and down, the effect of screening and conveying the calcium carbonate on the vibrating screen plate 55 is achieved, the calcium carbonate smaller than the diameter of the through hole on the vibrating screen plate 55 directly falls into the storage box 5 below, the calcium carbonate larger than or equal to the diameter of the through hole on the vibrating screen plate 55 enters the crushing cylinder 35 through the drainage plate 56, the first hydraulic cylinder 31 is started again, the crushing hammer 34 is driven to move up and down by the piston of the first hydraulic cylinder 31, and accordingly the calcium carbonate in the crushing cylinder 35 is crushed again.

After crushing by the crushing hammer 34 for a period of time, driving the crushing hammer 34 to ascend through a piston rod of the first hydraulic cylinder 31, enabling the top of the crushing hammer 34 to be abutted against the middle of the crushing cylinder 35, achieving the effect of separating the crushing cylinder 35 into an upper space and a lower space, and then starting the telescopic piece 39, achieving the effect of moving the baffle 38, so that calcium carbonate is discharged from the outlet 37; meanwhile, the circulating pump 43 is started, calcium carbonate falls into the receiving tray 41 from the outlet 37, and is conveyed onto the vibrating screen plate 55 along the first pipeline 42 and the second pipeline 44 under the action of the circulating pump 43, so that calcium carbonate smaller than the diameter of the through hole on the vibrating screen plate 55 directly falls into the receiving box 5 below, and calcium carbonate larger than or equal to the diameter of the through hole on the vibrating screen plate 55 enters the crushing cylinder 35 through the drainage plate 56 again to be crushed again until the calcium carbonate can fall into the receiving box 5 from the through hole on the vibrating screen plate 55, the calcium carbonate is thoroughly crushed, the omission probability is reduced, the crushing of the calcium carbonate reaching the requirement is not repeated, the working time is shortened, the working efficiency is improved, and the working cost is also reduced.

The above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model. The technology, shape, and construction parts of the present utility model, which are not described in detail, are known in the art.

Claims (10)

1. A reducing mechanism is used in calcium carbonate production, its characterized in that: including installing first crushing subassembly and the second crushing subassembly in the box, be equipped with the containing box in the box, be equipped with vibrating screen plate between containing box and the first crushing subassembly, the bottom of second crushing subassembly is equipped with circulating assembly, circulating assembly's free end is established between first crushing subassembly and vibrating screen plate, vibrating screen plate's one end is equipped with the drainage board, one side at the second crushing subassembly is established to the one end of drainage board, the blowing groove has been seted up at the top of box.

2. The pulverizing apparatus for producing calcium carbonate according to claim 1, wherein: the first crushing assembly comprises a motor, a driving roller and a driven roller, the driving roller and the driven roller are both rotatably installed in the box body, the motor is fixedly installed on one side of the box body, an output shaft of the motor is fixedly connected with the driving roller, a driving gear is fixedly sleeved at one end, close to the motor, of the driving roller, a driven gear is fixedly sleeved at one end, close to the motor, of the driven roller, and the driving gear is meshed with the driven gear.

3. A crushing device for calcium carbonate production according to claim 2, characterized in that: one side of the driving roller and one side of the driven roller are respectively provided with a stop block, and the stop blocks are fixedly arranged on the inner wall of the box body.

4. The pulverizing apparatus for producing calcium carbonate according to claim 1, wherein: the second crushing assembly comprises a mounting frame and a first hydraulic cylinder, wherein the crushing cylinder is fixedly arranged on the mounting frame, one side of the crushing cylinder is positioned at the bottom of the drainage plate, the first hydraulic cylinder is fixedly arranged in the box body, a connecting rod is fixedly connected with a piston rod of the first hydraulic cylinder, a crushing hammer is fixedly connected with a free end of the connecting rod, the crushing hammer is arranged in the crushing cylinder, an outlet is formed in the bottom of the crushing cylinder, and a switch piece is arranged at the outlet.

5. The pulverizing apparatus for producing calcium carbonate according to claim 4, wherein: the switch piece includes the extensible member and is used for sheltering from the baffle of export, the one end fixed mounting of extensible member is on the mounting bracket, the other end and baffle fixed connection.

6. The pulverizing apparatus for producing calcium carbonate according to claim 4, wherein: the section of the crushing cylinder is in a calabash shape.

7. The pulverizing apparatus for producing calcium carbonate according to claim 4, wherein: the circulating assembly comprises a circulating pump, a first pipeline and a second pipeline, wherein the first pipeline and the second pipeline are respectively and fixedly connected to two ends of the circulating pump, the circulating pump is fixedly installed in a box body, the free end of the first pipeline is fixedly connected with a receiving tray, the receiving tray is installed on a mounting frame and located at the bottom of a crushing cylinder, and the free end of the second pipeline is located at the top of a vibrating screen plate.

8. The pulverizing apparatus for producing calcium carbonate according to claim 1, wherein: the vibrating screen plate is characterized in that sliding blocks are fixedly connected to two sides of the vibrating screen plate, lifting grooves are formed in two sides of the box body, and one end of each sliding block is arranged in each lifting groove.

9. The pulverizing device for calcium carbonate production according to claim 8, wherein: the storage box is internally and fixedly provided with a support, a second hydraulic cylinder is fixedly arranged on the support, a piston rod of the second hydraulic cylinder is fixedly connected with a vibrating ball, and the vibrating ball is contacted with the bottom of the vibrating screen plate.

10. The pulverizing apparatus for producing calcium carbonate according to claim 9, wherein: the bottom fixedly connected with protection casing of vibrating screen plate, the vibrating ball is located the protection casing.