SU935127A1

SU935127A1 - Tube mill grate

Info

Publication number: SU935127A1
Application number: SU802987600A
Authority: SU
Inventors: Владимир Ильич Кауфман
Priority date: 1980-10-02
Filing date: 1980-10-02
Publication date: 1982-06-15

Description

II

Изобретение относитс к размольному оборудованию, а именно к конструкции решеток трубных мельниц, и может быть применено в глиноземном производстве.The invention relates to grinding equipment, in particular to the construction of pipe mill grids, and can be applied in alumina production.

. Известны межкамерные перегородки и выходные решетки, состо щие из секторов, в которых выполнены 1Челевидные отверсти П.. Intercamera partitions and output grids are known, which consist of sectors in which 1P.

Недостатком известных решеток трубных мельниц вл етс забивание их отверстий отработанными мелющими телами. Это приводит к уменьшению производительности мельниц и не позвол ет обеспечить усто вшийс технологический режим оборудовани , что в свою очередь, отражаетс на качестве тонины помола.A disadvantage of the known tube mill grids is the clogging of their openings with used grinding bodies. This leads to a decrease in the productivity of the mills and does not allow for the provision of a steady technological mode of equipment, which, in turn, is reflected in the quality of the grinding fineness.

Наиболее близким к предлагаемой техническим решением вл етс решетка трубной мельницы, составленна из секторов, имеющих отверсти и радиально расположенные выступы t2.Closest to the proposed technical solution is a tube mill grille made up of sectors having openings and radially located protrusions t2.

Недостатком этой решетки вл етс низка пропускна способность ввиду заПивани их отверстий отработанными мелющими телами.The disadvantage of this grating is the low throughput due to the filling of their holes with used grinding bodies.

Цель изобретени - увеличение пропускной способности и,, как следствие повышение производительности мельницы , а также стабилизации процесса измельчени .The purpose of the invention is to increase the throughput and, consequently, increase the productivity of the mill, as well as stabilize the grinding process.

Указанна цель достигаетс тем, This goal is achieved by

to что в решетке трубной мельницы, составленной из секторов, имеющих отверсти и радиально расположенные выступы, одна из боковых граней каждого сектора выполнена в виде гре15 бенки, а выступы с плоскостью решетки составл ют угол 10 - k.That in the tube mill grating made up of sectors with holes and radially located protrusions, one of the lateral faces of each sector is made as a heel, and the protrusions with the plane of the lattice form an angle of 10 - k.

Причем зубь гребенки могут иметь форму клина.Moreover, the tooth comb can be in the form of a wedge.

На фиг. 1 изображен корпус трубной FIG. 1 shows the pipe body

Claims

20 mills, longitudinal section; on 4) ig. 2 - lattice sector; in FIG. 3, view A in FIG. 2 (sector from the side of the child. Side view); in fig. k section bb in fig. 2 (lattice, cross section). The tube mill consists of a body 1, inside the body and at the exit there are lattices assembled from sectors 2. Sector 2 is a plate 3 on which a protrusion is located radially (relative to the mill). At one edge of the sector under the protrusion, the overflow holes 5 are made in the form of a comb with teeth 6. The protrusion k is inclined to the upper plane of the comb and hangs over it. The protrusion is made variable in height due to the fact that its wear during operation is uneven and is a function of the radius. The height of the protrusions, as a rule, should be greater than the thickness of the plate 3. The tooth 6 of the comb is wedge-shaped. The grating sectors 2 installed at the outlet are different from the grating sectors dividing the mill into chambers in that the protrusion k is made on both sides. When the mill is working together with the housing 1, the sectors 2 fixed in it rotate. The protrusions of the k sectors beat the grinding bodies and prevent them from contacting the plate 3, since the holes 5 of the comb are closed with the projection 5 inclined above them, grinding bodies including 5 gre9 benki will fall into the holes. At the same time, pulp due to small radial velocities (1.0 ... 2.5 m / s) of the sectors, and as a consequence of this laminar flow, will pass through the openings of the lattice. The implementation of the grid according to the invention significantly increases its throughput and, consequently, the productivity of the mill. Claim 1. A tube mill grid composed of sectors with holes and radially arranged protrusions, characterized in that, in order to increase the capacity of the mill and stabilize the grinding process, one of the side faces of each sector is made in the form of a comb, and the projections with a plane gratings make an angle of 10 - 45 °. 2. The lattice according to claim T, of tl and h and yush so that the teeth of the comb have the shape of a wedge. Sources of information taken into account in the examination 1.Ilevich A.P. Equipment plants silicate industry. M., Gosstroyizdat, 1959, p. 235.

2. USSR author's certificate No. 313560, В 02 С 17/18, 1970. kKSkJUkJbS. y TNJ ....... TTL G 1 -Id ,. , J. J7 V-V.-VVVV tX.-VW-v-WVV-V - vv. Ri.1