CN107433155B

CN107433155B - Screw rod pin type powder mixer

Info

Publication number: CN107433155B
Application number: CN201710545455.5A
Authority: CN
Inventors: 张平亮
Original assignee: Wuxi Professional College of Science and Technology
Current assignee: Wuxi Professional College of Science and Technology
Priority date: 2017-07-06
Filing date: 2017-07-06
Publication date: 2020-06-30
Anticipated expiration: 2037-07-06
Also published as: CN107433155A

Abstract

The invention provides a screw rod pin type powder mixer which can fully mix materials, thereby avoiding the phenomenon of layered segregation caused by mixing materials with great specific gravity and different particle sizes, having high mixing precision, improving the product quality and the production efficiency and having very wide application range; the stirring device comprises a cylinder body, a main shaft penetrates through the cylinder body and is driven by a driving device, a stirrer is installed on the main shaft, a connecting pipe communicated with an inner cavity of the cylinder body is arranged on the cylinder body, a feeding box is installed at the outer end of the connecting pipe, the stirrer comprises stirring blocks, and rod pins are arranged on the outer walls of the stirring blocks and the inner walls of the cylinder body corresponding to the outer walls of the stirring blocks in a staggered mode respectively.

Description

Screw rod pin type powder mixer

Technical Field

The invention relates to a mixing dispersion machine, in particular to a screw rod pin type powder mixing machine.

Background

In powder engineering and other chemical engineering, the quality of the mixing degree directly affects the performance and quality of the product, for example, when solid-solid (powder and powder) and solid-liquid (powder and colloidal fluid) are mixed in the industries of magnet, ceramic, chemical industry, pharmacy, feed, pesticide, fertilizer, dye, mine, metallurgy, plastics, rubber, food, monosodium glutamate, brewing, refractory material, mortar, putty and the like, a vertical axis rotary type powder mixer is generally used, but in the vertical axis rotary type mixer, the material retained on the cylinder wall can not be fully transferred with the material in the mixing action area, so that partial materials can not be fully mixed and dispersed all the time, the mixing precision is not high, and the layering segregation phenomenon can be generated on the mixture consisting of the materials with great specific gravity difference and different particle sizes, thereby seriously influencing the product quality and the production efficiency.

Disclosure of Invention

In order to solve the problems, the invention provides a screw rod pin type powder mixer which can fully mix materials, so that the phenomenon of layered segregation caused by mixing materials with different specific gravities and different particle sizes is avoided, the mixing precision is high, the product quality and the production efficiency are improved, and the screw rod pin type powder mixer has a very wide application range.

The technical scheme is that the stirring device comprises a barrel, a main shaft penetrates through the barrel and is driven by a driving device, and a stirrer is installed on the main shaft.

It is further characterized in that:

the inner cavity of the cylinder body and the stirring block are of corresponding polygonal structures;

the bar pins comprise first bar pins and second bar pins, the first bar pins are arranged on the outer wall of the stirring block and the inclined wall surface of the outer wall of the stirring block, which corresponds to the inner wall of the cylinder body, and are arranged in a staggered manner at equal intervals, the second bar pins are arranged on the outer wall of the stirring block and the vertical wall surface of the inner wall of the cylinder body, which corresponds to the outer wall of the stirring block, and are arranged in a staggered manner at equal intervals, and the front ends of the second bar pins are provided with third bar pins;

the stirring block and the second bar pin on the vertical wall surface of the cylinder are correspondingly arranged in an inclined mode, and the inclination angle is 30-80 degrees;

the connecting pipe is arranged at the upper end part of the cylinder body, the upper end part of the connecting pipe is connected with the feeding box and extends into the feeding box, the feeding box is provided with a liquid feeding port, the feeding box corresponding to the upper end part of the connecting pipe is provided with a powder feeding box communicated with the liquid feeding port, the upper part of the powder feeding box is provided with the powder feeding port, the upper end parts of the powder feeding box and the connecting pipe are of corresponding inverted cone structures, and a gap at the bottom end of the powder feeding box is arranged in a conical cavity at the upper end part of the connecting pipe;

the driving device comprises a main belt wheel and an auxiliary wheel which are connected through a belt, the external leading-out end of the main shaft is connected with the auxiliary wheel, and the motor is connected with a speed reducer and then is in transmission connection with the main belt wheel;

the main shaft penetrates through the bottom of the cylinder body and is sealed by packing; and a discharge hole is formed in the bottom of the cylinder body.

The invention has the advantages that the materials with different specific gravity and different particle sizes are mixed by the feeding box and then enter the inner cavity of the cylinder body, the stirring block adopted in the cylinder body generates strong mechanical power, meanwhile, the stirring block and the rod pins which are staggered on the wall surface of the cylinder body stir the materials in a large area and are continuously sheared, the self rotating force of the materials and the shearing and mixing action of the stirring block ensure that the materials are in convective circulation and shearing and seepage mixing in the cylinder body, a detention area is prevented from being formed, the materials in the cylinder body are in turbulent rolling mixing, the rod pins rotating at high speed smash the materials, the materials are quickly mixed in the cylinder body, the effect of quickly and uniformly mixing the materials in a short time is realized, the mixing precision is improved, and the phenomena that the materials with different specific gravity and different particle sizes are mixed and layered segregation and the materials detained on the wall of the cylinder body cannot be sufficiently transferred with the materials in the mixing action area are avoided, improves the product quality and the production efficiency and has wide application range.

Drawings

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

FIG. 2 is an enlarged view of the structure of FIG. 1 from the direction A-A;

fig. 3 is an enlarged view of the direction B-B of fig. 1.

Detailed Description

As shown in fig. 1, 2 and 3, the invention comprises a cylinder body 6, wherein a main shaft 15 penetrates through the bottom of the cylinder body 6 and is sealed by a packing 18; the bottom of the cylinder body 6 is provided with a discharge hole 17, the main shaft 15 is driven by a driving device, the main shaft 15 is provided with a stirrer, the cylinder body 6 is provided with a connecting pipe 5 communicated with the inner cavity of the cylinder body, the outer end part of the connecting pipe 5 is provided with a feeding box 3, the stirrer comprises a stirring block 8, and the outer wall of the stirring block 8 and the inner wall of the cylinder body 6 corresponding to the outer wall of the stirring block are respectively provided with a bar pin.

Specifically, the inner cavity of the cylinder 6 and the stirring block 8 are of corresponding polygonal structures; the bar pins comprise a first bar pin 7 and a second bar pin 10, the first bar pin 7 is arranged on the outer wall of the stirring block 8 and the inclined wall surface of the inner wall of the barrel 6 corresponding to the first bar pin 7, the first bar pin and the second bar pin are arranged at equal intervals in a staggered manner, the second bar pin 10 is arranged on the outer wall of the stirring block 8 and the vertical wall surface of the inner wall of the barrel 10 corresponding to the second bar pin 10, the second bar pin and the vertical wall surface are arranged at equal intervals in a staggered manner, and a third bar pin 9 is arranged at; the stirring block 8 and the second pin 10 on the vertical wall surface of the cylinder 6 are correspondingly arranged in an inclined way, and the inclined angle is 45 degrees; the connecting pipe 5 is arranged at the upper end part of the barrel 6, the upper end part of the connecting pipe 5 is connected with the feeding box 3 and extends into the feeding box 3, the feeding box 3 is provided with a liquid feeding port 4, the feeding box 3 corresponding to the upper end part of the connecting pipe 5 is provided with a powder feeding box 2 communicated with the liquid feeding port, the upper part of the powder feeding box 2 is provided with a powder feeding port 1, the upper end parts of the powder feeding box 2 and the connecting pipe 5 are of corresponding inverted cone structures, and a bottom end gap of the powder feeding box 2 is arranged in a conical cavity at the upper end part of; the driving device comprises a main belt wheel 13 and an auxiliary belt wheel 16 which are connected through a belt 14, the external leading-out end of a main shaft 15 is connected with the auxiliary belt wheel 16, and a motor 11 is connected with a speed reducer 12 and then is in transmission connection with the main belt wheel 13.

The working process of the invention is that the powder raw material enters the powder feeding port 1, the powder reaches the connecting pipe 5 along the powder feeding box 2, the liquid raw material enters the liquid feeding port 4 and also enters the connecting pipe 5 along the feeding box 3, the powder raw material and the liquid raw material are mixed and then enter the gap between the inner cavity of the cylinder 6 and the stirring block 8, the motor 11 is connected with the speed reducer 12 to drive the main belt wheel 13, the main belt wheel 13 drives the auxiliary belt wheel 16 through the belt 14, the auxiliary belt wheel 16 drives the main shaft 15 at the lower part of the stirring block 8, the main shaft 15 drives the stirring block 8 to rotate together, the stirring block 8 generates strong mechanical power, the mixed raw material is simultaneously acted by the first bar pin 7, the second bar pin 10 and the third bar pin 9 which are arranged in a staggered way to form large-area stirring for the material and is continuously sheared, and the self rotating force of the material and the shearing and mixing action of the, Shearing and mixing to prevent a detention area from being formed, so that materials in the cylinder 6 are subjected to disorder rolling and mixing, the materials are crushed by the rod pin rotating at high speed, the materials are quickly mixed in the cylinder 6, and finally, a finished product is discharged from a discharge hole 17; and because the motion is complex, no dead angle and no deposition, the effect of quickly and uniformly mixing the mixed materials in a short time is realized, the mixing precision is higher, the mixing efficiency is high, the mixing device has good adaptability to the mixing of various granular, fiber or sheet materials such as coarse grains, fine grains, ultrafine powder and the like, and can disperse the condensed materials in a granular form, so that the materials can be effectively mixed, the adaptability is wider, the mixing of the materials with different viscosities is realized, the powder is mixed with the powder, and liquid is added into the powder for mixing, and the device can be widely applied to the industries such as magnets, ceramics, chemical engineering, pharmacy, feeds, pesticides, fertilizers, dyes, mines, metallurgy, plastics, rubber, food, monosodium glutamate, brewing, refractory materials, mortar, putty and the like.

Claims

1. A screw rod pin type powder mixer comprises a cylinder body, a main shaft penetrates through the cylinder body and is driven by a driving device, a stirrer is arranged on the main shaft, it is characterized in that the cylinder body is provided with a connecting pipe communicated with the inner cavity of the cylinder body, the outer end part of the connecting pipe is provided with a feeding box, the stirrer comprises a stirring block, the outer wall of the stirring block and the inner wall of the cylinder body corresponding to the stirring block are respectively provided with a pin in a staggered way, the bar pins comprise a first bar pin and a second bar pin, the first bar pin is arranged on the outer wall of the stirring block and the inclined wall surface of the stirring block corresponding to the inner wall of the cylinder body, and the second pins are arranged on the outer wall of the stirring block and the vertical wall surface corresponding to the inner wall of the cylinder body at intervals in a staggered manner, and the third pins are arranged at the front ends of the second pins at intervals in a staggered manner.

2. The screw rod pin type powder mixer according to claim 1, wherein the inner cavity of the cylinder and the stirring block have corresponding polygonal structures.

3. The screw pin type powder mixer according to claim 2, wherein the stirring block and the second pin on the vertical wall surface of the cylinder are arranged in a corresponding inclined manner at an angle of 30 ° to 80 °.

4. The screw rod pin type powder mixer according to claim 1, wherein the connection pipe is disposed at an upper end of the cylinder, an upper end of the connection pipe is connected to the feeding tank and extends into the feeding tank, the feeding tank is provided with a liquid feeding port, the feeding tank corresponding to the upper end of the connection pipe is provided with a powder feeding box communicated with the feeding tank, the upper portion of the powder feeding box is provided with a powder feeding port, the powder feeding box and the upper end of the connection pipe are in corresponding inverted cone structures, and a bottom gap of the powder feeding box is disposed in a conical cavity at the upper end of the connection pipe.

5. The screw rod pin type powder mixer according to claim 1, wherein the driving device comprises a main belt wheel and an auxiliary wheel connected by a belt, an external leading end of the main shaft is connected with the auxiliary wheel, and a motor is connected with a speed reducer and then is in transmission connection with the main belt wheel.

6. A screw rod pin type powder mixer according to claim 1, wherein said main shaft passes through the bottom of said cylinder and is sealed by a packing; and a discharge hole is formed in the bottom of the cylinder body.