Grinding device for limestone powder production and processing

Abstract

The utility model belongs to the technical field of limestone powder processing, and particularly relates to a grinding device for producing and processing limestone powder, which comprises a grinding box and a feed hopper positioned at the top of the grinding box, and further comprises a blower nozzle, an upper double-roller grinding component is mounted at the upper end in the grinding box, and a lower double-roller grinding component is mounted at the lower end in the grinding box; a linkage component is arranged between the upper double-roller grinding component and the feeding hopper, and a first guide plate located at a discharging port of the feeding hopper and the upper end of the middle of the upper double-roller grinding component is fixed in the grinding box. Firstly, the upper double-roller grinding component and the lower double-roller grinding component can improve the discharging smoothness after powder grinding, meanwhile, the service life can be guaranteed, secondly, the feeding hopper linked with the upper double-roller grinding component is arranged, the purchasing and using cost is reduced, the energy utilization rate is increased, and the energy consumption is reduced. And finally, a collecting hopper, a valve and a material collecting box are arranged, so that powder can be conveniently cleaned and poured while equipment use is not influenced or suspended, and the use flexibility is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of limestone powder processing, in particular to a grinding device for limestone powder production and processing. Background Art

[0002] Limestone powder, also known as carbonated lime or calcium carbonate, is a powdery substance made by crushing and grinding limestone, dolomite, dolomitized limestone, chalk or shells. Its main components are calcium carbonate and magnesium carbonate, and it contains impurities such as silicon, aluminum, and iron. Limestone powder is white, grayish white, milky white and light yellow. It is difficult to dissolve in pure water, but its solubility increases significantly in water containing carbon dioxide.

[0003] After searching, the publication (announcement) number CN115888899A proposes a grinding device for limestone powder processing, including a feeding mechanism and a plurality of grinding systems connected to the feeding mechanism, wherein the grinding system includes a first grinding system directly connected to the feeding mechanism and a second grinding system connected to the first grinding system through a material dividing mechanism, wherein the first grinding system and the second grinding system both include a grinding box and a grinding mechanism arranged inside the grinding box; the material dividing mechanism includes a material dropping barrel and a material receiving box arranged on one side of the material dropping barrel, and a blast port is arranged on one side of the middle of the material dropping barrel and is connected to an external blast mechanism, and the like technical features, which have the advantages of effectively improving the efficiency of limestone crushing and grinding, ensuring the service life of the device, reducing maintenance costs, and the like technical effects;

[0004] First, since the grinding plate and the grinding groove are fixedly installed, the grinding roller grinds the lime blocks by friction and extrusion after rotation, which will increase the wear between the grinding roller, the grinding plate and the grinding groove. When the local wear of the grinding plate and the grinding groove is more serious, it will affect the grinding effect.

[0005] Secondly, the feeding mechanism uses a vibrator as a power source, the purchase cost of the vibrator is high, and it needs to be connected to electricity when in use, which increases the purchase and use costs of the equipment;

[0006] Finally, the receiving box is connected to the equipment as a whole. In order to ensure the grinding and separation effect, the equipment needs to be paused and the powder inside the receiving box needs to be taken out. The operation is not convenient and will affect the grinding efficiency.

[0007] In order to solve the above problems, the present application proposes a grinding device for limestone powder production and processing. Utility Model Content

[0008] The purpose of the utility model is to provide a grinding device for limestone powder production and processing, which solves the problems raised in the above-mentioned background technology.

[0009] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0010] The utility model relates to a grinding device for limestone powder production and processing, which comprises a grinding box and a feed hopper located at the top of the grinding box, and further comprises an air blowing port. An upper double-roller grinding component is installed at the upper end inside the grinding box, and a lower double-roller grinding component is installed at the lower end inside the grinding box. A linkage component is arranged between the upper double-roller grinding component and the feed hopper. A first guide plate is fixed inside the grinding box at the upper middle part between the discharge port of the feed hopper and the upper double-roller grinding component. A collecting hopper is fixed inside the grinding box between the upper double-roller grinding component and the lower double-roller grinding component. A valve is connected to the bottom of the collecting hopper. A material receiving box is inserted and arranged inside the grinding box, and the material receiving box communicates with the valve.

[0011] Furthermore, a second guide plate is fixed inside the grinding box below the upper double-roller grinding component and corresponding to the end of the air blowing port. The second guide plate is also directly above the collecting hopper, and an opening with the bottom corresponding to the air blowing port is formed between the second guide plate and the top of the collecting hopper.

[0012] Furthermore, a third diversion plate is fixed inside the grinding box directly above the lower double-roller grinding component, and a blanking hopper is arranged at the bottom of the grinding box directly below the lower double-roller grinding component.

[0013] Furthermore, a transmission box connected to the upper double-roller grinding component is arranged on the side of the grinding box, and a driving motor is arranged outside the transmission box.

[0014] Furthermore, a linear slide rail that can move horizontally is arranged between the bottom of the feed hopper and the grinding box, and a return spring is also arranged between the side of the feed hopper and the grinding box.

[0015] Furthermore, the linkage component includes a synchronous pulley installed on the grinding box through a bracket and a rotating frame installed on the grinding box through a bracket. A roller is eccentrically arranged on one side of the upper end of the rotating frame, and a bevel gear pair is arranged between the rotating frame and the synchronous pulley.

[0016] Furthermore, a gear is arranged at the output end of the driving motor, and the synchronous pulley is connected to the gear through a synchronous belt.

[0017] The utility model has the following beneficial effects:

[0018] In the utility model, two grinding rollers are horizontally distributed inside the upper double-roller grinding component and the lower double-roller grinding component, so that the feeding is smoother, and the powder is ground by means of mutual extrusion, with less wear. Even if there is wear, it is more uniform, and the durability is better;

[0019] The utility model connects the vibration of the feed hopper with the drive of the upper double-roller grinding component through a linkage component, reducing the procurement and use costs of the vibrator, and having better linkage and integrity of the equipment, also saving resources and energy;

[0020] By arranging a matching collecting hopper, valve and material receiving box, the utility model can facilitate the pouring of the powder inside the material receiving box without affecting the separation of coarse and fine particles during the powder grinding process of the equipment, and avoid affecting the powder grinding efficiency of the equipment due to the pouring of the powder inside the material receiving box.

[0021] Certainly, it is not necessary for any product implementing the utility model to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the utility model, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0023] Figure 1 is a schematic diagram of the overall external structure of the utility model;

[0024] Figure 2 is Figure 1 a schematic diagram of the rear view structure;

[0025] Figure 3 is a schematic diagram of the half-section structure of the utility model;

[0026] Figure 4 is a schematic diagram of the partial enlarged structure of the connection part between the feed hopper and the grinding box in the utility model;

[0027] In the drawings, the list of components represented by each reference numeral is as follows:

[0028] In the figure: 1, grinding box; 2, upper double-roller grinding component; 3, lower double-roller grinding component; 4, feed hopper; 5, first guide plate; 6, second guide plate; 7, air inlet; 8, collecting hopper; 9, valve; 10, material receiving box; 11, third diversion plate; 12, blanking hopper; 13, transmission box; 14, drive motor; 15, linear slide rail; 16, return spring; 17, synchronous pulley; 18, synchronous belt; 19, rotating frame; 20, roller; 21, bevel gear pair. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0030] In the description of the present utility model, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating orientation or positional relationships are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0031] Please refer to Figures 1-4 As shown, the present utility model is a powder grinding device for limestone powder production and processing, including a grinding box 1 and a feed hopper 4 located at the top of the grinding box 1. It also includes an air blowing port 7. An upper double-roller grinding component 2 is installed at the upper end inside the grinding box 1, and a lower double-roller grinding component 3 is installed at the lower end inside the grinding box 1. A linkage component is provided between the upper double-roller grinding component 2 and the feed hopper 4. A first guide plate 5 is fixed inside the grinding box 1 at the middle upper end of the discharge port of the feed hopper 4 and the upper double-roller grinding component 2. A collecting hopper 8 is fixed inside the grinding box 1 between the upper double-roller grinding component 2 and the lower double-roller grinding component 3. A valve 9 is connected to the bottom of the collecting hopper 8. A receiving box 10 is inserted inside the grinding box 1, and the receiving box 10 communicates with the valve 9.

[0032] Among them, a second guide plate 6 is fixed inside the grinding box 1 below the upper double-roller grinding component 2 and with its end corresponding to the air blowing port 7. The second guide plate 6 is also directly above the collecting hopper 8. An opening with a bottom corresponding to the air blowing port 7 is formed between the second guide plate 6 and the top of the collecting hopper 8. In this embodiment, the second guide plate 6 deflects the powder ground by the upper double-roller grinding component 2 to one side of the grinding box 1, thus avoiding the installation space of the collecting hopper 8, the valve 9, and the receiving box 10, and the structure is more compact.

[0033] Among them, a third guide plate 11 is fixed inside the grinding box 1 directly above the lower double-roller grinding component 3, and a blanking hopper 12 is provided at the bottom of the grinding box 1 directly below the lower double-roller grinding component 3. In this embodiment, the third guide plate 11 can accurately guide the powder after secondary grinding onto the lower double-roller grinding component 3 for grinding.

[0034] Among them, a transmission box 13 connected to the upper double-roller grinding component 2 is provided on the side of the grinding box 1, and a driving motor 14 is provided outside the transmission box 13. In this embodiment, the transmission box 13 is driven by the driving motor 14, and the two grinding rollers on the upper double-roller grinding component 2 are driven by the transmission box 13, so as to realize the powder grinding work.

[0035] Among them, a linear slide rail 15 that can move horizontally is provided between the bottom of the feed hopper 4 and the grinding box 1, and a return spring 16 is also provided between the side of the feed hopper 4 and the grinding box 1. In this embodiment, the return spring 16 ensures the central position of the feed hopper 4 on the grinding box 1, and can automatically reset through the return spring 16 after the bearing thrust disappears.

[0036] Among them, the linkage component includes a synchronous pulley 17 installed on the grinding box 1 through a bracket and a rotating frame 19 installed on the grinding box 1 through a bracket. One side of the upper end of the rotating frame 19 is eccentrically provided with a roller 20, and a bevel gear pair 21 is provided between the rotating frame 19 and the synchronous pulley 17. In this embodiment, the synchronous pulley 17 and the rotating frame 19 are vertically distributed, and the roller 20 is in rolling contact with the side of the feed hopper 4, which can reduce friction and wear.

[0037] Among them, a gear is provided at the output end of the driving motor 14, and the synchronous pulley 17 and the gear are connected by a synchronous belt 18. In this embodiment, the output end of the driving motor 14 is also connected to the inside of the transmission box 13. The gear on the driving motor 14 is a synchronous pulley and is linked with the synchronous pulley 17 through the synchronous belt 18. By leveraging the driving motor 14, it will not interfere with the normal use of the transmission box 13.

[0038] It can be understood that, first, the upper double-roller grinding component 2 and the lower double-roller grinding component 3 are set to improve the smoothness of the material discharge after powder grinding, and at the same time ensure the service life. Secondly, the feed hopper 4 linked with the upper double-roller grinding component 2 is set to reduce the procurement and use costs and improve the energy utilization rate. Finally, the collection hopper 8, the valve 9, and the material receiving box 10 are set to facilitate the pouring of the powder without affecting and pausing the use of the equipment, and improve the use flexibility.

[0039] A specific application of this embodiment is: both the upper double-roller grinding component 2 and the lower double-roller grinding component 3 are provided with a transmission box and a motor. The two grinding rollers inside are driven by the motor and the transmission box to achieve the powder grinding effect. A synchronous pulley is provided at the output end of the driving motor 14, and the synchronous belt 18 connects the synchronous pulley on the driving motor 14 and the synchronous pulley 17;

[0040] The drive motor 14 starts and drives the grinding roller to rotate through the gearbox 13. At this time, the drive motor 14 also drives the rotary frame 19 to rotate at the upper end outside the grinding box 1 through the synchronous belt 18, the synchronous pulley 17 and the bevel gear pair 21. The rotary frame 19 drives the roller 20 to rotate. Since the roller 20 is eccentrically arranged, it will squeeze and disengage from the side of the feed hopper 4. The feed hopper 4 reciprocates along the linear slide rail 15 through the extrusion of the roller 20 and the reset of the return spring 16. After the lumpy lime is poured into the interior of the feed hopper 4, it is stably conveyed into the grinding box 1 along with the reciprocating movement of the feed hopper 4. The material falls between the two grinding rollers through the first guide plate 5 and is ground. The ground powder falls to the position of the air blast port 7 through the second guide plate 6. The powder with smaller particles is collected in the receiving box 10 through the collecting hopper 8 and the valve 9 by means of an external air source. The larger particles fall to the lower double-roller grinding component 3 through the third diversion plate 11 and are discharged from the discharge hopper 12 after being ground by the lower double-roller grinding component 3;

[0041] Emptying the powder inside the receiving box 10: After closing the valve 9, the receiving box 10 is taken out and emptied. At this time, the collected powder will stay between the upper end of the valve 9 and the collecting hopper 8. After the receiving box 10 is emptied, it is reinstalled in the grinding box 1. The valve 9 is opened, and the powder temporarily collected between the valve 9 and the collecting hopper 8 automatically falls into the receiving box 10.

[0042] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0043] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not elaborate on all the details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the relevant technical fields can understand and utilize the present invention well. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A grinding device for the production and processing of limestone powder, comprising a grinding box (1) and a feed hopper (4) located at the top of the grinding box (1), further comprising an air blowing port (7), characterized in that: An upper double-roller grinding component (2) is installed at the upper end inside the grinding box (1), a lower double-roller grinding component (3) is installed at the lower end inside the grinding box (1), a linkage component is provided between the upper double-roller grinding component (2) and the feed hopper (4), a first guide plate (5) is fixed inside the grinding box (1) at the middle upper end between the discharge port of the feed hopper (4) and the upper double-roller grinding component (2), a collecting hopper (8) is fixed inside the grinding box (1) between the upper double-roller grinding component (2) and the lower double-roller grinding component (3), a valve (9) is connected to the bottom of the collecting hopper (8), a material receiving box (10) is inserted and arranged inside the grinding box (1), and the material receiving box (10) communicates with the valve (9).

2. A pulverizing device for limestone powder production and processing according to claim 1, characterized in that: A second guide plate (6) is fixed inside the grinding box (1) below the upper double-roller grinding component (2) and corresponding to the air blowing port (7) at the end, the second guide plate (6) is also directly above the collecting hopper (8), and an opening with the bottom corresponding to the air blowing port (7) is formed between the second guide plate (6) and the top of the collecting hopper (8).

3. A pulverizing device for limestone powder production and processing according to claim 1, characterized in that: A third diversion plate (11) is fixed inside the grinding box (1) directly above the lower double-roller grinding component (3), and a blanking hopper (12) is provided at the bottom of the grinding box (1) directly below the lower double-roller grinding component (3).

4. A powder grinding device for limestone powder production and processing according to claim 1, characterized in that: A transmission box (13) connected to the upper double-roller grinding component (2) is provided on the side of the grinding box (1), and a driving motor (14) for driving is provided outside the transmission box (13).

5. A powder grinding device for limestone powder production and processing according to claim 1, characterized in that: A linear slide rail (15) that can move horizontally is provided between the bottom of the feed hopper (4) and the grinding box (1), and a return spring (16) is also provided between the side of the feed hopper (4) and the grinding box (1).

6. A pulverizing device for limestone powder production and processing according to claim 4, characterized in that: The linkage component includes a synchronous pulley (17) installed on the grinding box (1) through a bracket and a rotating frame (19) installed on the grinding box (1) through a bracket. A roller (20) is eccentrically provided on one side of the upper end of the rotating frame (19), and a bevel gear pair (21) is provided between the rotating frame (19) and the synchronous pulley (17).

7. A pulverizing device for limestone powder production and processing according to claim 6, characterized in that: A gear is provided at the output end of the driving motor (14), and the synchronous pulley (17) is connected to the gear through a synchronous belt (18).

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