CN112387598A

CN112387598A - Umbrella-shaped material distributor

Info

Publication number: CN112387598A
Application number: CN202011145948.8A
Authority: CN
Inventors: 肖其忠; 段圆圆
Original assignee: Hefei Cement Research and Design Institute Co Ltd
Current assignee: Hefei Cement Research and Design Institute Co Ltd
Priority date: 2020-10-23
Filing date: 2020-10-23
Publication date: 2021-02-23

Abstract

The invention discloses an umbrella-shaped material distributor, which comprises a cylinder, a feeding pipe and an air inlet pipe, wherein one end of the air inlet pipe is communicated with the lower end of the cylinder, a coarse powder collecting hopper is arranged at the lower position of the air inlet pipe, the discharge end of the feeding pipe extends into the cylinder and is in a pipe orifice vertical state, a distribution plate is arranged at the pipe orifice of the discharge end, and a gap is formed between the conical surface of the distribution plate and the horizontal plane where the pipe orifice of the discharge end is located. The invention can make the columnar flow form the umbrella-shaped material curtain naturally and disperse to all directions, the material curtain can be very thin, the operation is stable and reliable, and the device is not difficult to be enlarged.

Description

Umbrella-shaped material distributor

Technical Field

The invention relates to the field of powder separation machinery, in particular to an umbrella-shaped material distributor.

Background

In the industries of cement, glass, ceramics, chemical industry and the like in the industrial field, a plurality of occasions for preparing block materials into powder exist, the main machine of the grinding operation is generally a ball mill, a vertical mill, a roller press and the like, and the block materials are crushed into powder after passing through the main machine; the powder comprises fine powder (dozens of microns), coarse powder (hundreds of microns) and coarse powder (millimeter level), the powder needs to be subjected to powder selection and separation, the fine powder is separated out to be used as a finished product, and the coarse powder return to the main machine for grinding again; the powder separator is a machine for separating powder according to fineness, and the powder separator is generally internally provided with rotating blades, so that the abrasive property of coarse powder is very strong, and the production operation of the powder separator is extremely unfavorable, so that the coarse powder in the powder separator needs to be separated in advance before the powder is fed into the powder separator.

At present, the coarse powder pre-separation machine mainly comprises a scattering classifier and a V-shaped powder concentrator. The scattering classifier has a rotating part, and coarse powder contained in the powder impacts a paddle rotating at a high speed to aggravate abrasion, so that the continuous operation time is short, and the maintenance task is heavy; the V-shaped powder separator needs to form a rectangular material curtain, air passes through the material curtain to carry away fine powder and coarse powder, and the coarse powder falls down due to self weight and is separated from the fine powder and the coarse powder. Therefore, the thinner the material curtain of the V-shaped powder concentrator, the better. The incoming material is generally columnar flow, and needs to be changed into waterfall flow, and becomes prolate as much as possible. The larger the output is, the larger the length-width ratio of the feeding port of the V-shaped powder concentrator is, and the larger the difficulty of changing the columnar flow into waterfall flow is. Therefore, the V-shaped powder concentrator encounters difficulty in the process of enlarging equipment. Although this can be overcome, the additional effect is that the feed pipe becomes longer, the fall is larger, the abrasion is increased, and the investment in equipment and plants is also increased.

Disclosure of Invention

The invention aims to provide an umbrella-shaped material distributor to solve the problems of a V-shaped powder concentrator in the prior art.

In order to achieve the purpose, the technical scheme adopted by the invention is as follows:

an umbrella material dispenser, characterized by: including vertical barrel to and feed pipe, air-supply line, the barrel upper end is sealed, the air-supply line is the unchangeable return bend of diameter, and air-supply line one end and barrel lower extreme intercommunication, the low point position intercommunication of air-supply line install the middlings and collect the fill, the feed pipe feed end is located the barrel outside, the discharge end stretches into to the barrel and be the mouth of pipe vertical state, and the feed pipe stretches into the discharge end mouth of pipe in the barrel and disposes the distributing plate, the distributing plate is the ascending cone in awl top, and the distributing plate is coaxial with the discharge end mouth of pipe that the feed pipe stretched into to the barrel, has the space between the conical surface of distributing plate and the discharge end mouth of pipe.

The umbrella-shaped material distributor is characterized in that: the cylinder body is composed of an upper section, a middle section and a lower section, the upper section is an upper cone with an upward conical top, the middle section is a straight cylinder body, the lower section is a lower cone with a downward cone, the feeding pipe penetrates into the cylinder body from the conical surface of the upper cone in an inclined shape, and a pipe orifice at the discharge end of the feeding pipe vertically extends to the straight cylinder body.

The umbrella-shaped material distributor is characterized in that: and an access door is arranged on the side surface of the upper cone.

The umbrella-shaped material distributor is characterized in that: and an annular support is welded at the lower part of the outer wall of the straight cylinder body.

The umbrella-shaped material distributor is characterized in that: the periphery of the distribution plate is connected with the periphery of a pipe orifice at the discharge end of the feeding pipe through angle steel.

The umbrella-shaped material distributor is characterized in that: the wall of the feeding pipe close to the discharge end is radially connected with a plurality of channel steel, and each channel steel penetrates out of the barrel body and is welded with the outer wall of the barrel body into a whole.

The umbrella-shaped material distributor is characterized in that: and a circle of channel steel is welded at the position where the outer wall of the cylinder body penetrates out corresponding to each channel steel.

The umbrella-shaped material distributor is characterized in that: the conical surface of the distribution plate is provided with a steel plate.

In the invention, powder is fed from top to bottom through a feeding pipe, impacts a distribution plate and is scattered from four sides to form an umbrella-shaped material curtain; the air flow (air) is provided by a fan and is blown from bottom to top through an air inlet pipe; when the airflow passes through the material curtain, fine particles in the powder are taken away, coarse particles fall down and are converged into a coarse powder collecting hopper, and the coarse particles and the fine particles are separated; the pipe diameter of the air inlet pipe is unchanged, the air speed is faster when the air quantity is larger, and the aim of adjusting the particle size of the separated particles is achieved by adjusting the rotating speed of the fan to control the flow and adjust the air speed.

The air flow is blown from bottom to top, the faster the air flow speed is, the larger the dynamic pressure is, the larger the air buoyancy is, when the air buoyancy is larger than the gravity of the dust particles, the dust particles are taken away by the air flow, the large particles continuously fall after overcoming the buoyancy, and the separation of the coarse particles and the fine particles is completed.

The invention has the technical effects that:

(1) the invention can make the columnar flow naturally form the umbrella-shaped material curtain, and the material curtain can be very thin.

(2) The powder separation process of the invention is carried out in a static device which does not operate, the operation is stable and reliable, and the operation rate is high.

(3) The equipment is not difficult to be enlarged. (4) The air flow direction transition is smooth, and the system resistance is small.

Drawings

Fig. 1 is a front view of the structure of the present invention.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

As shown in fig. 1, an umbrella-shaped material distributor, including vertical barrel, and feed pipe 1, air-supply line 8, the barrel upper end is sealed, air-supply line 8 is the unchangeable return bend of diameter, 8 one ends of air-supply line and barrel lower extreme intercommunication, coarse powder collecting hopper 9 is installed to the low point position intercommunication of air-supply line 8, feed pipe 1 feed end is located outside the barrel, the discharge end stretches into in the barrel and is mouth of pipe vertical state, feed pipe 1 stretches into the discharge end mouth of pipe in the barrel and disposes distributing plate 5, distributing plate 5 is the ascending cone in awl top, distributing plate 5 is coaxial with the discharge end mouth of pipe that feed pipe 1 stretched into in the barrel, there is the space between the conical surface of distributing plate 5 and the discharge end mouth of pipe place horizontal plane.

In the invention, the cylinder body is composed of an upper section, a middle section and a lower section, the upper section is an upper cone 2 with an upward cone top, the middle section is a straight cylinder body 4, the lower section is a lower cone 7 with a downward cone, the joint parts of the three parts are enclosed into a circle by angle steel and are mutually welded, the angle steel plays a role in connection and a role in reinforcing ring, and the manufacturing cost can be saved.

The feeding pipe 1 penetrates into the cylinder body from the conical surface of the upper conical body 2 in an inclined shape, and the pipe orifice of the discharge end of the feeding pipe 1 vertically extends to the center of the straight cylinder body 4. The air inlet pipe 8 is welded with the coarse powder collecting hopper 9 and then connected with the lower cone 7 by a flange.

The side of the upper cone 2 is provided with an access door 3. The lower part of the outer wall of the straight cylinder body 4 is welded with an annular support 6.

The periphery of the distribution plate 5 is connected with the periphery of a pipe orifice at the discharge end of the feeding pipe 1 through angle steel, the distribution plate 5 is made of a steel plate, and a layer of steel plate is coated on the distribution plate, so that the distribution plate is convenient to replace after being worn.

The pipe wall that the feed pipe 1 is close to the discharge end is along radially being connected with 4~6 channel-section steels, and each channel-section steel is worn out straight barrel 4 respectively and is as an organic whole with 4 outer wall welding of straight barrel, and 4 outer walls of straight barrel correspond each channel-section steel and wear out position welding round channel-section steel.

The embodiments of the present invention are described only for the preferred embodiments of the present invention, and not for the limitation of the concept and scope of the present invention, and various modifications and improvements made to the technical solution of the present invention by those skilled in the art without departing from the design concept of the present invention shall fall into the protection scope of the present invention, and the technical content of the present invention which is claimed is fully set forth in the claims.

Claims

1. An umbrella material dispenser, characterized by: including vertical barrel to and feed pipe, air-supply line, the barrel upper end is sealed, the air-supply line is the unchangeable return bend of diameter, and air-supply line one end and barrel lower extreme intercommunication, the low point position intercommunication of air-supply line install the middlings and collect the fill, the feed pipe feed end is located the barrel outside, the discharge end stretches into to the barrel and be the mouth of pipe vertical state, and the feed pipe stretches into the discharge end mouth of pipe in the barrel and disposes the distributing plate, the distributing plate is the ascending cone in awl top, and the distributing plate is coaxial with the discharge end mouth of pipe that the feed pipe stretched into to the barrel, has the space between the conical surface of distributing plate and the discharge end mouth of pipe.

2. The umbrella material dispenser of claim 1, wherein: the cylinder body is composed of an upper section, a middle section and a lower section, the upper section is an upper cone with an upward conical top, the middle section is a straight cylinder body, the lower section is a lower cone with a downward cone, the feeding pipe penetrates into the cylinder body from the conical surface of the upper cone in an inclined shape, and a pipe orifice at the discharge end of the feeding pipe vertically extends to the straight cylinder body.

3. The umbrella material dispenser of claim 2, wherein: and an access door is arranged on the side surface of the upper cone.

4. The umbrella material dispenser of claim 2, wherein: and an annular support is welded at the lower part of the outer wall of the straight cylinder body.

5. The umbrella material dispenser of claim 1, wherein: the periphery of the distribution plate is connected with the periphery of a pipe orifice at the discharge end of the feeding pipe through angle steel.

6. The umbrella material dispenser of claim 1, wherein: the wall of the feeding pipe close to the discharge end is radially connected with a plurality of channel steel, and each channel steel penetrates out of the barrel body and is welded with the outer wall of the barrel body into a whole.

7. The umbrella material dispenser of claim 6, wherein: and a circle of channel steel is welded at the position where the outer wall of the cylinder body penetrates out corresponding to each channel steel.

8. The umbrella material dispenser of claim 1, wherein: the conical surface of the distribution plate is provided with a steel plate.