Magnet separator

FIELD: instrument making.

SUBSTANCE: invention is related to the field of magnet separation of fine-dispersed materials and fine particles in the form of dry powder. Magnet separator comprises body that consists of settling chamber and regeneration chamber, magnet rods installed inside hollow tubular settling elements with the possibility of reciprocal motion, device for displacement of magnet rods and device for removal of magnet admixtures. Additionally separator contains chamber for preliminary separation of settled magnet admixtures from separated material, which is installed between settling chamber and regeneration chamber. Every section of tubular settling elements located in chamber of preliminary separation is equipped with two helical fixed knives. Initial sections of knives are joined and located on upper surfaces of hollow settling elements in the area of transition of settled magnet admixtures from settling chamber into preliminary separation chamber. Final sections of helical knives are radially turned in different sides relative to initial sections by 90° and are located on side surfaces of hollow settling elements in the area of transition of settled magnet admixtures from chamber of preliminary separation into regeneration chamber.

EFFECT: increased efficiency of separation and reduced losses of material.

3 dwg

 

The invention relates to the field of magnetic separation of fine materials and can be used in food, chemical, glass and other industries for extraction of bulk materials magnetic inclusions.

Known lattice magnetic separator [1], which consists of a body, functionally divided into the deposition chamber and regeneration, installed perpendicular to the flow of the separated medium series of the precipitation elements with magnetizing system inside them, remove impurities, placed on collecting element can move in the cell regeneration during the reciprocating movement of the precipitation elements.

One drawback to this unit is that in the process of regeneration of trapped impurities remains on the upper surface of the precipitation elements due to various reasons, for example because of their high humidity and prone to sticking, and after regeneration re-enters the separated material flow, reducing the efficiency of the separator as a whole.

The closest technical solution to the claimed is magnetic separator [2], comprising a casing, consisting of a deposition chamber and camera regeneration, magnetic rods placed inside the hollow tubular precipitation of elements with who is the very useful for reciprocating movement in them, and device for removing impurities, and magnetizing the rod is further provided with end figure ferromagnetic plate with a sample of the material in the upper part of the collecting element, and the device is removal of impurities can have two versions. In the first embodiment, the device remove impurities installed on the outside of the precipitation element can move in the cell regeneration due to the interaction with the magnetic core, and in the second variant the extraction device of magnetic impurities is made integral, with one part mounted for movement in the chamber of regeneration, and the other is outside and is connected with the moving device of the magnetic rods.

The disadvantage of this magnetic separator is that when the movement of the magnetic rods in the process of regeneration of the magnetic impurity material in the upper part of carry in the camera part of the regeneration of the separated material on the upper surface of the precipitation element on the opposite side from the end curly ferromagnetic washer that reduces the effectiveness of its actions and leads to the ingress portion of the separated material to remove magnetic impurities.

Another disadvantage of this technical solution is that at the moment of regeneration device remove impurities, the implementation of jaimoe in the form of an annular shaped washer-seal, opens holes connecting the camera deposition and regeneration, and allows part of the separated material, falling with great speed, to enter the cell regeneration due to the reflection of the individual particles from the precipitation elements.

Solvable problem - preventing the separated material in the camera regeneration by increasing the efficiency of separation of the separated material and magnetic impurities.

This technical result is achieved by the fact that in a magnetic separator, comprising a casing, consisting of a deposition chamber and camera regeneration, magnetic rods with end figure ferromagnetic washers installed inside the hollow tubular collecting items reciprocating motion, the moving device of the magnetic rods and device for removal of magnetic impurities, in addition placed the camera pre-separation of precipitated magnetic impurities from the separated material, installed between the deposition chamber and the chamber of regeneration, and each of the sections of the tubular precipitation of elements in the camera pre-separation with two spiral stationary knives, the initial sections are connected and are located on the upper surface of the hollow precipitation elements in the transition zone academicmedicine impurities from the deposition chamber in the camera pre-separation, while the final sections of the spiral blades radially deployed in different directions relative to the initial sections at 90° and are located on the lateral surfaces of the hollow precipitation elements in the transition zone of precipitated magnetic impurities from the camera pre-separation in the camera regeneration.

The difference between this and the technical solutions known from the prior art is the presence of the camera pre-separation of precipitated magnetic impurities from the separated material, installed between the deposition chamber and the chamber of regeneration.

The additional camera prevents accidental ingestion of deposited material in the chamber of regeneration due to the substantial reduction of the speed of the material caught by deposition from the deposition chamber in the camera pre-separation.

Another difference is the presence of a spiral stationary knives mounted on the tubular sections of the precipitation elements in the camera pre-separation.

The spiral design of the knife allows for a spiral motion towards the camera regeneration deposited on the upper surface of the precipitation elements of magnetic impurities to capture a portion of deposited material and dump it into the camera pre-separation.

The spiral design of the knives makes Enate in the process of regeneration linear motion of magnetic impurities, deposited on the upper surface of the precipitation elements in a precipitation chamber, a spiral in the camera pre-separation. In this part of the deposited material is captured by moving in a spiral magnetic impurities and is reset in pre-trial division of not getting into the camera regeneration.

Figure 1 shows a General view of a magnetic separator; figure 2 - cross section a-a figure 1; figure 3 is a view In figure 1.

Magnetic separator consists of a casing 1, which includes the deposition chamber 2, pre-separation 3 and regeneration 4; parallel rows of precipitation elements 5 made of a hollow pipe; spiral blades 6 mounted on collecting elements 5 in the chamber 3 of the provisional separation; magnetic cores 7 are located inside the hollow of the precipitation elements 5; actuator 8 moving the magnetic cores 7 and the separation wall.

Magnetic separator works as follows. The separated material is fed into the deposition chamber 2 and enters the collecting elements 5, separating into streams. Remove impurities with the help of a magnetic field generated by the magnetic cores 7, captured and localized on the surface of the hollow collecting elements 5. Purified from magnetic impurities, the material falls down and is discharged from the housing 1. Part of the fine material is material with magnetic impurities retained on the upper surface of the cylindrical collecting elements 5. Trapped magnetic impurities are removed from the surface of the precipitation elements 5 in the process of regeneration. Magnetic rods 7 by means of a pneumatic cylinder 8 is discharged from the deposition chamber 2 through the camera pre-separation 3 and the camera regeneration 4 outside of the housing 1. At this remove magnetic impurities, concentrated on the lower surfaces of the precipitation elements are moved through the chamber 3 pre-separation in the regeneration chamber 4, where difficultly enough cleaned off the wall.

Magnetic impurities located on the upper surface of the elements 5, when regeneration is also shifted in the direction of the camera 3 pre-separation and capture a portion of the separated material.

In the absence of camera 3 this material would get into the chamber 4 and together with magnetic impurities were removed, which is unacceptable.

In this device, the magnetic impurities together with the part deposited on the upper surface of the elements 5 of the separated material is moved in the process of regeneration in the chamber 3 and ends in the initial sections 6 spiral knives. Under the action of the magnetic field of a floating magnetic core 7 a mixture of material and impurities is divided into two flows and moves in a spiral path defined by the shape of the blades 6, the side wall elements 5. When this purified material falls and lose the SJ from the chamber 3 through the outlet of the housing 1 further technology together with the main flow of material, and magnetic impurities, localized on the lower surface of the elements 5, continue to move in the regeneration chamber 4, where difficultly enough cleaned off the wall. Hit the separated material from the chamber 2 into the chamber 4 due to high speed and chaotic fall of individual particles in this design also eliminated, as the speed of these particles is extinguished in the chamber 3, from which they are discharged into the main stream of purified material.

Thus, the presence of the camera 3 pre-separation and spiral blades 6 mounted on collecting elements 5, to more effectively carry out magnetic separation of material and eliminates partial penetration into the cell regeneration 4 remove magnetic impurities.

Sources of information

1. Self-cleaning grate magnet and bushing, United States Patent 5190159, 3/1993, Barker, VS 1/00.

2. RF patent №2205700, CL VS 1/00, publ. 2003 (prototype).

Magnetic separator comprising a casing, consisting of a deposition chamber and camera regeneration, magnetic rods, installed inside the hollow tubular collecting items reciprocating motion, the moving device of the magnetic rods and device for removal of magnetic impurities, characterized in that it further comprises a camera pre-separation of precipitated magnetic impurities from the separated material, the plant and between the deposition chamber and the chamber of regeneration, each of the sections of the tubular precipitation of elements in the camera pre-separation with two spiral stationary knives, the initial sections are connected and are located on the upper surfaces of hollow precipitation elements in the transition zone of precipitated magnetic impurities from the deposition chamber in the camera pre-separation, and the end sections of the spiral blades radially deployed in different directions relative to the initial sections at 90° and are located on the lateral surfaces of the hollow precipitation elements in the transition zone of precipitated magnetic impurities from the camera pre-separation in the camera regeneration.



 

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