WO2013100799A1

WO2013100799A1 - Disperser

Info

Publication number: WO2013100799A1
Application number: PCT/RU2012/000227
Authority: WO
Inventors: Шарид Харисович ХАКИМОВ
Original assignee: Hakimov Raschid Harisovich
Priority date: 2011-12-26
Filing date: 2012-03-28
Publication date: 2013-07-04

Abstract

The invention relates to equipment for grinding and drying materials. The disperser comprises a housing (1), a rotor (2) arranged therein with radial blades (3), which rotor is fixed to a shaft (4) with the capacity for rotation, and an inlet channel (5) and an outlet channel (6), wherein stator elements (9) are arranged on the shell of the housing (1), said stator elements being in the form of plates feeding material into the dispersion zone, wherein air supply channels (8) are formed after each stator element in the direction of rotation of the rotor on the shell. The outlet channel (6) is equipped with aerodynamic baffles (7), and openings (10) are formed in the lateral wall of the housing (1) opposite the zone of rotation of the radial blades (3). The technical result consists in achieving a high-quality and productive process for separating a fibrous material.

Description

Dispersant

Technical field

The invention relates to equipment for grinding and drying materials and can be used for the production of ecowool, 5 biofuels, etc.

State of the art

A known installation for grinding fibrous material, comprising a housing with a processing chamber, in which are placed having a grinding headset, a rotor mounted on the drive shaft, and a stator, inlet and outlet pipes.

(U.S. Pat. JNo 1337483 IPC B02C 19/06, 1973)

A disadvantage of the known device is that the dispersing effect on the fibrous material is not enough to obtain due to this high

15 quality of its processing. The reason for this is the short exposure time, limited only by the moment the jet hits the obstacle. Their further interaction, during normal outflow, has practically no effect on the material, since the pressure of the jet on the obstacle and the energy of a unit of its volume, in this case, are many times

20 less than. hit.

A device for grinding materials is known, comprising a housing, a rotor located therein, made in the form of a disk with accelerating blades on both sides, input and output channels located coaxially relative to the axis of rotation of the rotor,

25, the output channel is made in the form of a ring spanning the input channel and is in communication with the suction cyclone. The accelerating blades of the rotor are mounted on its disk radially from the side of the output channel. The device contains a shell with tangential slots, which is located coaxially between the cylindrical wall of the casing and the end edges of the accelerating blades of the rotor and form with the body, an annular cavity communicating with a tangential channel for supplying air. The symmetry axis of the tangential slots are inclined at an angle of .7-10 degrees to the tangent drawn to the inner wall of the shell at a point located at the same

5 distance from two adjacent slots, (see a. With. The USSR N "1629094 MPK V02S 13/26, bull. G27, 1991)

Due to the fact that the output channel in the analog device is ring-shaped, a strongly swirling stream of aerosuspension of the crushed material is obtained at the outlet of the device, which is unacceptable when using it in the manufacturing process of products, in particular, paper using an aerodynamic method.

The closest in technical essence and the achieved result to the claimed technical solution is a dispersant containing a housing, a rotor with radial

15 blades, which is mounted on the shaft with the possibility of rotation, the input and output channels. On the inside of the housing, stator elements are placed, made in the form of plate protrusions feeding material into the dispersion zone, and knives are located on the end edges of the radial blades, and

20 of each stator element in the direction of rotation of the rotor on the shell holes are made for air intake, while the outlet channel, having a conical shape, is equipped with aerodynamic partitions, (RF patent 38471, IPC D21B 1/34, publ. 20.06.04.) This device is taken in as a prototype.

25 The disadvantages of the prototype are insufficient separation of the finished product.

Disclosure of invention

The objective of the invention is to develop a dispersant design that is free from the disadvantages of the prototype, namely, the possibility of obtaining a stable (predetermined) particle size distribution the composition of the final product, due to the exclusion of non-separated particles of the processed material between the side wall of the housing and the disperser rotor.

The problem is solved using the characteristics indicated in the claims 5 common with the prototype, such as a dispersant containing a housing, a rotor with radial blades placed in it, which is mounted on the shaft with the possibility of rotation, input and output channels, stator elements are placed on the shell , in the form of plates feeding material into the dispersion zone, after each stator element along the rotation of the rotor, channels for air intake are made on the shell, while the output channel is aerodynamically equipped by partitions, and distinctive essential features, such as holes in the side wall of the housing opposite the rotation zone of the radial blades 15.

The above features can provide a high-quality and productive process of separation of fibrous material.

The above distinguishing features each individually and 20 are all jointly aimed at solving the problem and are significant. The use of the proposed combination of significant distinguishing features in the prior art is not found, therefore, the proposed solution meets the patentability criterion of "novelty."

25 A single set of new essential features with common, well-known provides a solution to the problem, is not obvious to specialists in this field of technology and indicates that the claimed solution achieved a technical result - the creation of a simpler and more reliable disperser design that eliminates the disadvantages of the prototype. Brief Description of the Drawings

The invention is illustrated by the description of a specific, but not limiting example of implementation and the accompanying drawing. In FIG. 1 shows the design of the dispersant in the context; figure 2 is a view of 5 a - a of fig. one

The implementation of the invention

The dispersant (FIG. 1) contains a cylindrical housing 1, a rotor 2 with radial blades 3 located in it, which is rotatably mounted on the shaft 4 (the drive is not shown), an input channel 5 and an output channel 6 located coaxially with respect to the axis of rotation of the rotor 2. The output channel 6, is equipped with aerodynamic partitions 7, is connected to a fan (not shown in the drawing), and the housing 1 is equipped with channels 8 for air intake. On the shell of the housing 1 (figure 2) with

15 of the inner side at an angle of 20-50 ° to the plane of rotation, the stator elements 9 are placed, made in the form of plates feeding material into the dispersion zone. Each stator element 9 along the rotation of the rotor 2 on the shell channels 8 are made for air intake. In the side wall of the housing 1 at a radius not

20 less than 1 70 mm and not more than 270 mm, holes 10 are made, for example, with a diameter of 12-1 7 mm in an amount of 10-20 pieces (Fig. 1) opposite the rotation of the radial blades 3.

The device operates as follows.

In the dispersant through the inlet channel 5 in the air stream

25, a dispersible material is supplied — commercial pulp or waste paper, which enters a rotating rotor 2 with radial blades 3. Under the action of centrifugal forces, the particles of material move to the periphery of the rotor 2 and fall into the annular dispersion zone. At the same time, air is supplied to this zone through channels 8. Bringing the material subjected to the impact of the rotor blades, is divided into individual fibers without mechanical damage.

Using the stator elements 9, the material is more intensively fed into the dispersion zone, twisting in order to intensively mix the mass of the air suspension. The resulting air-fibrous air suspension is taken from the center of the dispersant under the influence of a vacuum created by a fan (not shown), connected to the output channel 6. Aerodynamic partitions 7 are installed in the channel 6 to remove a closed rotating air flow that prevents the finished product from leaving the dispersant. By changing the vacuum, the granulometric composition of the product is regulated at the outlet of the dispersant, while airflows move through the openings 10, preventing undivided particles from entering the final product between the side wall of the housing and the rotating rotor of the dispersant.

Industrial applicability

The present invention can be made of available materials and components on serial equipment in an industrial environment. It will be widely used in the pulp and paper, chemical, construction industries and other industries.

From the description and practical application of the present invention, other particular forms of its implementation will be apparent to those skilled in the art. This description and drawings are considered as material illustrating the invention, the essence of which and the scope of patent claims are defined in the following claims, a combination of essential features and their equivalents.

Claims

Claim

A disperser comprising a housing, a rotor with radial blades placed in it, which is rotatably mounted on the shaft, input and output channels, stator elements are placed on the shell of the housing, in the form of plates supplying material to the dispersion zone, after each stator element in the direction of rotation of the rotor channels for air intake are made on the shell, while the output channel is provided with aerodynamic partitions, characterized in that in the side wall of the housing opposite the zone of rotation of the radial blades holes.