CN218167217U

CN218167217U - Device for controlling particle size of grinding powder through variable frequency

Info

Publication number: CN218167217U
Application number: CN202221961481.9U
Authority: CN
Inventors: 娄会强; 范晓伟; 龙庚; 秦涛; 张禄; 闫攀
Original assignee: Xi'an Zhongcai Profiles Co ltd
Current assignee: Xi'an Zhongcai Profiles Co ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-12-30
Anticipated expiration: 2032-07-27

Abstract

The utility model discloses a device for controlling the particle size of grinding powder through frequency conversion, which relates to the technical field of grinding devices and solves the problems that the particle size of the produced product can not be controlled, and only can the control of the particle size of the product smaller than a few millimeters through the mesh number of a screen, and the product required by production can not be provided; the utility model discloses can control the size of grinding powder particle diameter, the product of different demands can be produced to same platform equipment, and through the frequency that changes inverter motor, the messenger descends grinding roller device energy consumption, and is more energy-conserving.

Description

Device for controlling particle size of grinding powder through variable frequency

Technical Field

The utility model relates to a milling equipment technical field, more specifically relates to a device of frequency conversion control mill powder particle diameter.

Background

Part of grinding powder is needed to be mixed in the production process of the drain pipe so as to improve the flowability of the material and ensure the current stability of the extruder in the use process of the material, and the produced product meets the specified requirements; the particle size of the powder ground by the existing flour mill under the condition of not adding a screen is small as a whole, the improvement on the material flowability is small, the wall thickness of a product cannot be controlled due to the fluctuation of current of an extruder in production, the waste rate of the product is high, the productivity is low, and the influence on the production is large.

The basic frequency of current milling machine is fixed, and motor speed is fixed, can carry out repeated crocus through the screen cloth to the material that the particle diameter is big and make the particle diameter diminish, nevertheless can not obtain the particle diameter great, satisfies the crocus material of extruding production.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an: in order to solve current equipment, the production product particle diameter can't be controlled, only can control through the screen mesh number and be less than what millimeter, can't provide the technical problem of the required product of production, the utility model provides a device of frequency conversion control grinding powder particle diameter.

The utility model adopts the technical scheme as follows: the utility model provides a device of frequency conversion control mill powder particle diameter, is including grinding chamber, storage hopper, fan, pipeline, wind channel, it is provided with grinder to grind the intracavity, and this grinder passes through inverter motor drive, it has the pan feeding mouth to grind one side of chamber to open, grinds the opposite side of chamber and the one end intercommunication of pipeline, the other end and the storage hopper intercommunication of this pipeline, the bottom of storage hopper is provided with the rotary valve, and wind channel and fan intercommunication are passed through at the top of storage hopper, the shale shaker is installed to the below of rotary valve, and the discharge gate of this shale shaker has been placed and has been connect the feed bin.

Still including carrying the chamber, carry the intracavity to be provided with feed screw, this feed screw passes through the conveying motor drive, carry one side top in chamber to be provided with the loading hopper, the opposite side and the pan feeding mouth intercommunication in chamber should carry, carry through carrying the chamber, can control the speed of carrying, feed screw can break up in addition, preliminary broken raw materials, make the epilogue grinding effect better.

Grinder includes the plum blossom frame, the grinding roller, grind the ring, the spiller, the center pin, the one end and the inverter motor of center pin are connected, the other end of center pin passes the bottom of grinding the chamber and is connected with the bottom center of plum blossom frame, the spiller has evenly been arranged to the bottom periphery of this plum blossom frame, the bottom upper surface and the grinding ring of this plum blossom frame are connected, the top installation grinding roller of plum blossom frame, and form the swing fulcrum, rotation and revolution and the grinding ring friction through the grinding roller, and in the spiller and the grinding roller co-rotation process, throw the feeding grinding roller to the material, form the bedding course between the grinding ring, this bedding course receives the rotatory outside centrifugal force (the extrusion force) that produces of grinding roller, pulverize the material, make the grinding effect better.

The grinding roller takes the plum blossom frame as the center, and is uniformly provided with 3-6, so that the grinding efficiency is improved.

The shovel blades take the plum flower stand as the center, 3-6 shovel blades are uniformly arranged, and the grinding efficiency is improved.

The fan is a speed-regulating suction fan, and can suck out the grinding powder with different particle sizes by regulating the speed.

The pipeline sets up the filter screen with grinding chamber connection end, and the particle diameter of this filter screen is 1-3 millimeters bigger than the screen cloth particle diameter of shale shaker, through the particle diameter of control wanting the product, only can get into the shale shaker alternative at the crocus material that has been under this scope.

The rotary valve is replaced by an air-closed feeder, so that discharging is facilitated, and the design requirement can be met.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

the utility model discloses a milling machine grinding roller device operating frequency can accurately be adjusted to inverter motor, through reducing grinding roller device operating frequency, reduces the material dwell time in grinding roller device, has reduced the energy consumption of whole crocus system, reduces the dust that the crocus in-process produced, and it is great to obtain the particle diameter, satisfies the crocus material of production requirement.

The utility model discloses a change the power of fan, can the different particle diameters of suction grind the powder, can adjust the power of fan as required, the storage hopper is inhaled through the negative pressure of fan to the crocus material, sieves out the great mill powder material row of particle diameter through the shale shaker and inserts the feed bin again, discharges below the screen cloth that tiny mill powder material passes through the shale shaker.

To sum up, the utility model discloses can control the size of grinding powder particle diameter, the product of different demands can be produced to same platform equipment, and through the frequency that changes inverter motor, the messenger descends grinding roller device energy consumption, and is more energy-conserving.

Drawings

The invention will now be described, by way of example, with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view of the present invention;

FIG. 2 isbase:Sub>A schematic sectional view of the present invention A-A;

FIG. 3 is a schematic view of the structure of the grinding roller device of the present invention;

labeled in the figure as: 1-a feeding hopper, 2-a conveying motor, 3-a feeding screw, 4-a conveying cavity, 5-a feeding port, 6-a grinding cavity, 7-a plum blossom shelf, 8-a pipeline, 9-a storage hopper, 10-an air duct, 11-a fan, 12-a rotary valve, 13-a vibrating screen, 14-a receiving bin, 15-a grinding roller, 16-a scraper knife, 17-a central shaft, 18-a variable frequency motor and 19-a grinding ring.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings in the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, rather than all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

Example 1

As shown in fig. 1-3, this embodiment provides a device of frequency conversion control powder particle diameter, including grinding chamber 6, storage hopper 9, fan 11, pipeline 8, wind channel 10, be provided with grinder in grinding chamber 6, this grinder passes through inverter motor 18 drive, it has pan feeding mouth 5 to open one side of grinding chamber 6, and the opposite side of grinding chamber 6 and the one end intercommunication of pipeline 8, the other end and the storage hopper 9 intercommunication of this pipeline 8, the bottom of storage hopper 9 is provided with rotary valve 12, and wind channel 10 and fan 11 intercommunication are passed through at the top of storage hopper 9, shale shaker 13 is installed to the below of rotary valve 12, and the discharge gate of this shale shaker 13 is placed and is connect feed bin 14.

Example 2

On the basis of embodiment 1, still include and carry chamber 4, be provided with feed screw 3 in carrying chamber 4, this feed screw 3 drives through conveying motor 2, carry one side top of chamber 4 to be provided with loading hopper 1, the opposite side and the pan feeding mouth 5 intercommunication of this transport chamber 4, carry through carrying chamber 4, can control the speed of carrying, feed screw 3 can break up, preliminary broken raw materials moreover, make the epilogue grinding effect better.

Example 3

On the basis of embodiment 1, the grinding device comprises a plum blossom frame 7, a grinding roller 15, a grinding ring 19, a scraper knife 16 and a central shaft 17, wherein one end of the central shaft 17 is connected with a variable frequency motor 18, the other end of the central shaft 17 penetrates through the bottom of the grinding cavity 6 to be connected with the center of the bottom of the plum blossom frame 7, the scraper knife 16 is uniformly arranged on the periphery of the bottom of the plum blossom frame 7, the upper surface of the bottom of the plum blossom frame 7 is connected with the grinding ring 19, the grinding roller 15 is installed at the top of the plum blossom frame 7 and forms a swing fulcrum, the grinding roller 15 rotates and revolves to rub with the grinding ring 19, the scraper knife 16 and the grinding roller 15 rotate together, materials are thrown and fed between the grinding roller 15 and the grinding ring 19 to form a padding layer, and the padding layer generates outward centrifugal force (namely extrusion force) by the rotation of the grinding roller 15, and the materials are crushed, so that the grinding effect is better.

Example 4

On the basis of the embodiment 3, 3-6 grinding rollers 15 are uniformly arranged by taking the quincuncial frame 7 as the center, so that the grinding efficiency is improved.

Example 5

On the basis of embodiment 3, 3 to 6 shoveling blades 16 are uniformly arranged with the quincuncial frame 7 as the center, so that the grinding efficiency is improved.

Example 6

On the basis of the embodiment 1, the fan 11 is a speed-adjustable suction fan, and can suck out the grinding powder with different particle sizes by adjusting the speed.

Example 7

On the basis of the embodiment 1, a filter screen is arranged at the connection end of the pipeline 8 and the grinding cavity 6, the particle size of the filter screen is 1-3 mm larger than that of the screen of the vibrating screen 13, and the ground powder in the range can enter the vibrating screen 13 for selection by controlling the particle size of the required product.

Example 8

On the basis of the embodiment 1, the rotary valve 12 is replaced by an air-closed feeder, so that the discharging is convenient, and the design requirements can be met.

The utility model discloses a theory of operation does: in the production process of ground powder materials, workers add materials to be ground into a feeding hopper 1, the materials in the hopper are conveyed into a ground powder cavity through a feeding screw 3, a variable frequency motor 18 drives a central shaft 17 to rotate, the upper end of the central shaft 17 is connected with a plum flower stand 7, a grinding roller 15 device is arranged on the plum flower stand 7 and forms a swinging fulcrum, the grinding roller 15 device not only rotates around the central shaft 17 but also revolves around a grinding ring 19, the grinding roller 15 rotates automatically due to friction, a scraper knife 16 is arranged below the plum flower stand 7 and is positioned at the lower end of the grinding roller 15, the scraper knife 16 and the grinding roller 15 rotate synchronously, the materials are thrown and fed between the grinding roller 15 and the grinding ring 19 to form a padding layer, and the padding layer is rotated by the grinding roller 15 to generate outward centrifugal force (namely extrusion force) to grind the materials, so that the purpose of grinding powder is achieved; through the processing of grinding roller 15, grinding ring 19, the storage hopper 9 is inhaled through 11 negative pressures of fan to the crocus material, and the powder in the storage hopper 9 gets into shale shaker 13 through rotary valve 12, and the entering connects feed bin 14 at last, accomplishes the whole course of working of crocus material.

Claims

1. The utility model provides a device of frequency conversion control grinding powder particle diameter, includes grinding chamber (6), storage hopper (9), fan (11), pipeline (8), wind channel (10), its characterized in that, be provided with grinder in grinding chamber (6), this grinder passes through inverter motor (18) drive, open one side of grinding chamber (6) has pan feeding mouth (5), and the opposite side of grinding chamber (6) and the one end intercommunication of pipeline (8), the other end and storage hopper (9) intercommunication of this pipeline (8), the bottom of storage hopper (9) is provided with rotary valve (12), and wind channel (10) and fan (11) intercommunication are passed through at the top of storage hopper (9), shale shaker (13) are installed to the below of rotary valve (12), and the discharge gate of this shale shaker (13) has been placed and has connect feed bin (14).

2. The device for controlling the particle size of the grinding powder in a variable frequency manner according to claim 1, further comprising a conveying chamber (4), wherein a feeding screw (3) is arranged in the conveying chamber (4), the feeding screw (3) is driven by a conveying motor (2), a hopper (1) is arranged above one side of the conveying chamber (4), and the other side of the conveying chamber (4) is communicated with the feeding port (5).

3. The device for controlling the particle size of grinding powder through frequency conversion according to claim 1, wherein the grinding device comprises a plum blossom rack (7), a grinding roller (15), a grinding ring (19), a scraper knife (16) and a central shaft (17), one end of the central shaft (17) is connected with a variable frequency motor (18), the other end of the central shaft (17) passes through the bottom of the grinding cavity (6) and is connected with the center of the bottom of the plum blossom rack (7), the periphery of the bottom of the plum blossom rack (7) is uniformly provided with the scraper knife (16), the upper surface of the bottom of the plum blossom rack (7) is connected with the grinding ring (19), the grinding roller (15) is installed at the top of the plum blossom rack (7), and a swing fulcrum is formed.

4. The device for controlling the particle size of the grinding powder through frequency conversion according to claim 3, wherein 3 to 6 grinding rollers (15) are uniformly arranged by taking the quincuncial frame (7) as a center.

5. The device for controlling the particle size of the grinding powder through frequency conversion according to claim 3, wherein 3 to 6 shoveling knives (16) are uniformly arranged with a quincuncial frame (7) as the center.

6. The apparatus for controlling the particle size of grinding powders with variable frequency according to claim 1, wherein the fan (11) is a speed-adjustable suction fan.

7. The device for controlling the particle size of the grinding powder through frequency conversion according to claim 1, characterized in that a filter screen is arranged at the connection end of the pipeline (8) and the grinding cavity (6), and the particle size of the filter screen is 1-3 mm larger than that of the screen of the vibrating screen (13).

8. The device for frequency conversion control of the particle size of grinding powders according to claim 1, characterized in that the rotary valve (12) is replaced by a closed air downer.