Flour mill for attapulgite production

Abstract

The utility model provides a flour mill for attapulgite production, which comprises a support, guardrails fixedly mounted on two sides of the support, a blanking hopper mounted between the guardrails, a cutting roller arranged at the top end in the blanking hopper, a rotary roller arranged at an outlet at the bottom end, a conveying belt arranged below the blanking hopper, a plurality of crushing rollers mounted at the left end of the conveying belt, and an extrusion component mounted on the crushing rollers. The left end of the conveying belt is connected to the top end of the grinding box, a grinding disc is arranged in the middle of the grinding box, a multi-stage filter screen is installed below the grinding disc, and a collecting box and a material returning pipe are installed below the multi-stage filter screen. According to the utility model, the cutting roller, the rotary roller and the crushing roller are arranged before the grinding process of the grinding disc, so that large attapulgite stones are ground into smaller powder, the grinding disc is convenient to grind, the working efficiency of the grinding disc is improved, and meanwhile, the ground powder is screened by the multi-stage filter screen, so that the grinding efficiency is improved. And powder which does not meet the standard returns to the top of the powder grinding box through the material returning pipe and the centrifugal fan, so that powder grinding and filtering are performed for multiple times, and the quality of final finished powder is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the production technical field of attapulgite, specifically to a powder mill for attapulgite production. BACKGROUND

[0002] The attapulgite powder mill is a device for processing attapulgite into powder, which is widely used in the fields of building materials, animal husbandry, textiles, geological exploration and offshore drilling. The device converts attapulgite ore into high-quality powder products through a series of processes such as crushing, grinding, screening and regrinding. The existing attapulgite powder mill does not crush the material before grinding, resulting in low grinding efficiency and a small amount of powder meeting the grinding standards, which leads to a low pass rate.

[0003] To solve the above-mentioned problem of "a small amount of powder meeting the grinding standards", through retrieval, it is found that the application number CN202420369797.1 discloses a kaolin reinforced material grinding machine that can improve grinding precision, which includes a powder mill and a grinding mechanism. The surface of the powder mill is provided with a feed inlet, and the outer side of the powder mill is provided with a grinding mechanism. When in use, the first crushing assembly crushes the large block of kaolin to a size that can enter the powder mill, which helps to improve the efficiency of subsequent grinding. Then the conveying assembly sends the preliminarily crushed material into the powder mill through the feed inlet, ensuring the continuity of the grinding process. Then the grinding assembly grinds the preliminarily crushed kaolin into powder. Finally, the filtering assembly screens the material ground into powder, and the unqualified material will continue to be ground in the grinding machine, while the qualified material will enter the discharge pipe.

[0004] However, the above-mentioned grinding machine has the following problems when in use. The large block of material is crushed by the crusher, which has low efficiency in extruding the large block of material and cannot effectively divide the large block of material into smaller powder. The material is difficult to quickly enter the grinding disc for grinding, resulting in low efficiency. In addition, the analyzer and the fan are used to suck the powder from the top for screening, and a large amount of unground powder will be sucked into the analyzer. The unqualified powder is difficult to fall back to the grinding disc, resulting in low production efficiency. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a powder mill for attapulgite production to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0007] A powder mill for attapulgite production, comprising:

[0008] Support, both sides of the support are fixedly provided with guardrails, the guardrails are provided with a lower hopper, the lower hopper is internally provided with a cutting roller at the top end, and the lower hopper is provided with a rotary roller at the bottom outlet, the lower hopper is provided with a conveying belt below the lower hopper, the conveying belt is provided with a plurality of crushing rollers at the left end of the conveying belt, the crushing rollers are provided with extrusion assemblies, the left end of the conveying belt is connected to the top end of a grinding box, the grinding box is provided with a grinding disc in the middle of the grinding box, the grinding disc is provided with a plurality of step screens which are obliquely arranged below the grinding disc, and the step screens are provided with a collecting box and a return pipe below the step screens.

[0009] Preferably, the extrusion assembly comprises a fixed plate, the fixed plate is fixedly connected to the outside of the guardrail, and a damping rod is arranged below the fixed plate, and the other end of the damping rod is fixedly connected to a fixed sleeve.

[0010] Preferably, the fixed sleeve is arranged on the outside of the rotating shaft of the crushing roller, a return spring is arranged on the outside of the damping rod, an avoiding groove is formed in the guardrail, and the avoiding groove is larger than the diameter of the rotating shaft of the crushing roller.

[0011] Preferably, a second driving motor is arranged in the support, the second driving motor is connected to the rotating shaft of the crushing roller through a first transmission belt, and the rotating shafts of the crushing rollers are connected through a second transmission belt.

[0012] Preferably, the return pipe is arranged on the inner wall of the grinding box and connected to the pipeline of an external centrifugal fan.

[0013] Preferably, the centrifugal fan is connected to the pipeline at the top of the grinding box through the return pipe, so as to form a return channel.

[0014] Preferably, the upper half of the grinding disc is fixed to the inner wall of the grinding box, and the lower half of the grinding disc is driven to rotate by a first driving motor.

[0015] Preferably, the cutting roller has a plurality of rows of cutting blades which are evenly arranged on the cutting roller and used for cutting the attapulgite.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] The cutting roller, the rotary roller and the crushing roller are arranged in cooperation before the grinding process of the grinding disc, so that the large attapulgite block is cut into small pieces, and then the small pieces are extruded and rolled into smaller powder, the grinding disc is facilitated to grind the powder, the working efficiency of the grinding disc is improved, the grinding disc is prevented from being stuck by the large attapulgite block, the working efficiency is improved, and the maintenance cost is reduced.

[0018] The utility model discloses, through multistage filter screen screening after the powder of attapulgite, the powder that meets the standard is discharged, and the powder that does not meet the standard is returned to the top of the powder box through the return pipe and centrifugal fan again, thereby through multiple powdering filtration, ensure the quality of final product powder. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is the overall structure front view of the utility model;

[0020] Figure 2 It is the three-dimensional schematic view of the utility model's crushing roller, conveying belt and extrusion assembly;

[0021] Figure 3 It is the three-dimensional schematic view of the utility model's crushing roller, conveying belt and second drive motor;

[0022] Figure 4 It is the detail view of the utility model's extrusion assembly;

[0023] Figure 5 It is the three-dimensional schematic view of the utility model's cutting roller.

[0024] In the drawing: 1 - hopper;2 - cutting roller;201 - cutting blade;3 - rotary roller;4 - conveying belt;5 - support;501 - guardrail;6 - crushing roller;7 - extrusion assembly;701 - fixed plate;702 - fixed collar;703 - avoidance groove;704 - damping rod;705 - return spring;8 - powdering box;9 - grinding disc;901 - first drive motor;10 - multistage filter screen;11 - collection box;12 - discharge pipe;13 - return pipe;14 - centrifugal fan;15 - second drive motor;16 - first transmission belt;17 - second transmission belt. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0026] Embodiment:

[0027] Please refer to Figures 1 to 5 The utility model provides a technical scheme:

[0028] A kind of attapulgite production is ground by a powder machine, comprising:

[0029] The support is fixedly installed with guardrails on both sides, a feeding hopper is installed between the guardrails, the feeding hopper is internally provided with a cutting roller at the top end, the feeding hopper is provided with a rotary roller at the bottom outlet, the feeding hopper is provided with a conveying belt below, the conveying belt is provided with a plurality of crushing rollers at the left end, the crushing rollers are provided with extrusion assemblies, the left end of the conveying belt is connected to the top end of a grinding box, the grinding box is provided with a grinding disc in the middle, the grinding disc is provided with a plurality of step filters which are installed in a slanting manner below, the step filters are provided with a collecting box and a return pipe below.

[0030] In the embodiment, the feeding hopper is fixed between the guardrails, palygorskite blocks enter from the top end of the feeding hopper, pass through the cutting roller at the top, the cutting roller is provided with a plurality of uniform cutting blades, which can preliminarily cut the blocks into small pieces, then the palygorskite falls onto the rotary roller below the feeding hopper, the diameter of the rotary roller gradually increases from top to bottom in the vertical direction, the diameter of the lower end is slightly smaller than the outlet below the feeding hopper, so that the palygorskite is ground into smaller pieces through the friction between the lower end of the rotary roller and the inner wall of the feeding hopper, facilitating subsequent processing.

[0031] Specifically, the cutting roller is provided with a plurality of cutting blades which are uniformly distributed in the horizontal direction and used for cutting the palygorskite.

[0032] In the embodiment, the palygorskite pieces falling from the feeding hopper are conveyed to the extrusion assemblies on the slope by the conveying belt, the extrusion assemblies are a plurality of crushing rollers which are fixed between the guardrails, the rotating shafts of the crushing rollers pass through the guardrails to the outside, the rotating shafts of the adjacent crushing rollers are connected to each other by the second transmission belt outside one of the guardrails, and the rotating shaft of the crushing roller at the top is rotatably connected to the second driving motor in the support by the first transmission belt, so that the plurality of crushing rollers are driven to rotate at the same speed and in the same direction by the second driving motor. Figure 2 Figure 3 In the embodiment, the crushing rollers are provided with extrusion assemblies on both sides (the second driving motor on one side of the extrusion assembly is not shown), when the palygorskite pieces are conveyed to the crushing rollers on the slope along the conveying belt, the palygorskite pieces are crushed into fine palygorskite powder by the crushing rollers, when the pieces pass through the crushing rollers, the pieces extrude the crushing rollers upward, the crushing rollers move upward along the avoiding grooves formed in the guardrails, the fixed sleeves on the rotating shafts of the crushing rollers extrude the damping rods and the return springs upward, the return springs provide a vertical downward restoring force, and the crushing rollers are continuously extruded downward under the driving of the return springs and the damping rods, so that the palygorskite pieces are better crushed into smaller powder, the subsequent grinding efficiency is improved, and the grinding disc is prevented from being stuck by larger particles, thereby reducing the production efficiency and increasing the cost.

[0033] Figure 3

[0034] ​​​Specific, the extrusion assembly includes a fixed plate, the fixed plate is fixedly connected on the outer side of the guardrail, the lower side of the fixed plate is provided with a damping rod, the other end of the damping rod is fixedly connected on a fixed sleeve.

[0035] Specific, the fixed sleeve is sleeved on the outer side of the shaft of the crushing roller, the outer side of the damping rod is sleeved with a return spring, the guardrail is provided with an avoiding slot, the diameter of the avoiding slot is greater than the diameter of the shaft of the crushing roller.

[0036] Specific, the second driving motor is installed in the bracket, the second driving motor is connected with the shaft of the crushing roller through the first transmission belt, and the shafts of the crushing rollers are connected through the second transmission belt.

[0037] In this embodiment, the attapulgite is crushed into powder by the crushing roller, and then enters the grinding box through the conveying belt, falls into the inlet above the grinding disc installed on the inner side of the grinding box, and the attapulgite further grinds into powder in the grinding disc. The lower grinding disc of the grinding disc is driven by the first driving motor to rotate, and cooperates with the fixed upper grinding disc to continuously crush and grind the attapulgite.

[0038] The attapulgite powder after grinding falls into the multi-stage filter screen from the bottom outlet of the grinding disc, the multi-stage filter screen is made of stainless steel mesh, and the multi-stage filter screen has multiple layers from top to bottom. The filter screens with 20 meshes, 40 meshes, 80 meshes and 120 meshes are used for multi-layer filtering, and the attapulgite powder with particles meeting the requirements is collected into the collecting box and then discharged through the discharge pipe.

[0039] The multi-stage filter screen structure can be adjusted, the number of filter screens can be adjusted, and the filter screen can be disassembled and cleaned to prevent the filter screen from being blocked.

[0040] The attapulgite powder that does not meet the grinding standard is driven by the centrifugal fan through the multi-stage filter screen arranged obliquely from the low back material pipe, and is returned to the upper side of the grinding disc from the top of the grinding box again to be ground again, so as to ensure the quality of the final product.

[0041] Specific, the upper half of the grinding disc is fixed on the inner wall of the grinding box, and the lower half is driven to rotate by the first driving motor.

[0042] Specific, the inner wall of the grinding box is provided with a back material pipe on the side of the multi-stage filter screen, and the back material pipe is connected with the external centrifugal fan pipeline.

[0043] Specific, the centrifugal fan is connected with the top pipeline of the grinding box through the back material pipe, forming a back material channel.

[0044] The utility model discloses a cutting and grinding device for palygorskite, which comprises a cutting and grinding device body, a cutting roller, a rotary roller, a plurality of grinding rollers, a plurality of filter screens, a grinding disc, a grinding box, a reflux pipe, a centrifugal fan, a collecting box and a discharge pipe.

[0045] The utility model discloses the rest unrecited part can be same with prior art, or for well-known technology or can adopt prior art to realize, here no longer elaborate.

[0046] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An attritor mill for producing attapulgite, characterized by, Include: Support, both sides of the guardrail fixed installation, the guardrail between the installation of the hopper, the hopper inside the top cutting roller, hopper bottom outlet has a rotary roller, the lower part of the hopper has a conveyor belt, the left end of the conveyor belt is installed with a plurality of crushing roller, the crushing roller is installed with extrusion assembly, the left end of the conveyor belt is connected to the top of the grinding box, the middle of the grinding box has a grinding disc, the lower part of the grinding disc has a plurality of inclined installation of filter screen, the lower part of the filter screen is installed with a collection box and a return pipe.

2. An attapulgite producing pulverizer according to claim 1, characterized in that: The extrusion assembly includes a fixed plate, the fixed plate is fixedly connected to the outer side of the guardrail, the lower part of the fixed plate is installed with a damping rod, the other end of the damping rod is fixedly connected to the fixed sleeve.

3. An attapulgite producing pulverizer as claimed in claim 2, wherein: The fixed sleeve is sleeved on the outside of the rotating shaft of the crushing roller, the outside of the damping rod is sleeved with a return spring, the guardrail is provided with an avoiding slot, the diameter of the avoiding slot is greater than that of the rotating shaft of the crushing roller.

4. An attapulgite producing pulverizer as claimed in claim 1, wherein: The second drive motor is installed in the support, the second drive motor is connected with the rotating shaft of the crushing roller through the first transmission belt, and the rotating shafts of the crushing rollers are connected through the second transmission belt.

5. An attapulgite producing pulverizer as claimed in claim 1, wherein: The inner wall of the grinding box is provided with a return pipe on the side of the multi-stage filter screen, and the return pipe is connected with the pipeline of the external centrifugal fan.

6. An attapulgite producing pulverizer as claimed in claim 5, wherein: The centrifugal fan is connected with the top pipeline of the grinding box through the return pipe, forming a return material channel.

7. An attapulgite producing pulverizer as claimed in claim 1, wherein: The upper half of the grinding disc is fixed on the inner wall of the grinding box, and the lower half is driven to rotate by the first drive motor.

8. An attapulgite producing pulverizer as claimed in claim 1, wherein: The cutting roller has a plurality of cutting blades evenly distributed on the horizontal plane, which is used for cutting the attapulgite.

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