SU1349797A1 - Apparatus for conditioning pulp - Google Patents

Abstract

The invention relates to the field of the enrichment of solid minerals and is intended to prepare the pulp for the flotation process. The purpose of the invention is to reduce the consumption of reagent in and increase the degree of pulp processing. The apparatus includes a housing 1 with walls separated by a partition (P) 2 into the chamber (K) of the inlet and K of the pulp treatment, a branch pipe 4 of the inlet C air 2 70 16- Reagent W from 4: o

Description

f1 / g. 7

Pulp

t

pulp, threshold 3, pulp divider 9 and trays. (L) 7. The latter are formed by inclined planes and set at angles decreasing from top to bottom to P 2. Each L 7 is made in the form of a rectangular trapezium and fixed with a smaller base on the upper edge of P 2, and the end on one of the walls K of the pulp treatment. The smaller base L 7 is equal to the distance between P 2, cleverly Lenny by the order number L 7 from above, greater than the width of housing 1. In the gap between L 7, on the side walls of housing 1 are fitted

one

The invention relates to the field of the enrichment of solid minerals and is intended to prepare the pulp for the process of photoproduction.

The object of the invention is to reduce the consumption of reagents and increase the degree of pulp processing.

In Fig.1 schematically shows the apparatus, a general view, a longitudinal section; figure 2 is the same, top view.

The housing of the apparatus 1 is divided by a partition 2 into two chambers for the entry and processing of pulp reagents. A threshold 3 is installed in the entry chamber at the bottom of the chamber, a pulp feed inlet nozzle 4 and a pulp level 5 sensor. To the top of the partition 2, the guide plates 6 and the chutes 7, which are formed by inclined planes, are equally spaced from each other, and the chutes are installed at different angles to the partition, the partition angle 2 is the smallest and with increasing distance from the partition. , below the trays, in the gaps between them are installed devices for supplying reagents in the form of an aerosol 8, consisting of a pneumatic nozzle, a pulpitcher 9 is attached to the treatment chamber. A level sensor 10 is connected to the treatment chamber, Ny with. induction transducer 1I, which in turn is connected to a secondary device. 12. The secondary device 12 is connected to the magnetic starter 13, which is connected to the actuator 8 for supplying the reagents in the form of an aerosol. Above them are mounted nozzles 16 for air supply. To the top of the P 2, the guide plates 6 are installed vertically at equal distance from each other. The pulp, overflowing through P 2, is divided by the plates 6 into equal flows. They spread over L 7 and merge into K in the form of jets. During processing, the azrozole part of the pulp is displaced, and the thickness of the layer of the falling jet along the width K of the treatment is leveled. 2 hp f-ly, 2 ill.

A tel mechanism 14 connected with an adjustable organ 15. Each tray 7 is made in the form of a rectangular trapezium and fixed with a smaller base on the upper edge of the partition 2 and an end on one of the walls of the pulp processing chamber. The smaller base of the tray is equal to the distance between the guide plates 6, multiplied by the order number of the tray on top, the larger base is equal to the width of the body.

The device works as follows.

The pulp through the inlet nozzle 4 enters the input chamber, flows around the threshold 3, a circulation flow is formed behind it, which prevents particles from settling to the bottom of the apparatus. The pulp is poured through the partition 2 and is divided by the guide plates 6 into several equal flows, which spread over the trays 7 and merge into the treatment chamber in the form of a system of jets. Below the trays, devices for supplying reagents in the form of an aerosol 8 are installed. In this case, due to the fact that the devices for lifting the aerosol are installed on the side surface of the housing I closest to the guide plates to which the upper base of the tray 7 is adjacent, the aerosol will not only process the pulp but also to shift a part of the falling pulp to the opposite side of the housing 1 and thereby

Saw the thickness of the layer of falling pulp stream across the width of the treatment chamber. The treated pulp is distributed by pulpo 9 to the machine. A level 10 sensor is installed in the treatment chamber, which allows the pulp level to be kept constant and thus to ensure stable operation of the apparatus. Movement of the level sensor 10 causes a signal in the induction converter 11, which is converted in the secondary device 12, the signal from which enters the magnetic starter 13, which actuates the actuator 14, which opens or closes the control element 15, changes the flow of the pulp to the apparatus.

Installing above nozzles for supplying reagents in the form of an aerosol 8 nozzles 16 for supplying air at high speeds makes it possible to more quickly equalize the thickness of the falling pulp over the width of the treatment chamber and intensify the mixing process in the stream.

Thus, the proposed apparatus allows reducing the consumption of reagents by 12% by reducing the thickness of the flow in the treatment chamber, as well as reducing the consumption of reagents supplied directly to the cells of the flotation machines.

Claims (3)

Formula izob.teni I. Apparatus for pulp conditioning, comprising a housing with walls divided by a partition into an input chamber and a pulp processing chamber, a pulp inlet fitting, a threshold, a pulp separator, trough-shaped trays planes set to the gap between them is a device for supplying reagents in the form of an aerosol, characterized in that in order to reduce the consumption of reagents, increase the degree of pulp processing, the apparatus is equipped with guide plates that are vertically mounted on the partition at an equal distance friend., from each other, each lot ok is made in the form of a rectangular trapezium and fixed with a smaller base on the upper edge of the partition and an end on one of the walls of the pulp processing chamber, the smaller base of the tray is equal to the distance between the guide plates multiplied by the order number of the tray from the top, and the larger base is equal to the width of the case, the corners the inclination of the trays to the partition is reduced from top to bottom, and the device for supplying the reagents in the form of an aerosol is located on the side walls of the housing.  2. The apparatus pop. 1, which is also distinguished by the fact that there are nozzles for supplying air above the devices for supplying reagents in the form of an aerosol. 3. The apparatus according to claims 1 and 2, which is based on the fact that the trays have the shape of a dihedral angle, which faces apex upwards. Pu / 11upa one 6 Mr LJ   preeduc nyjujntt Editor S.Pekar Compiled by V. Bondarenko Tehred A. Kravchuk Proofreader O. Kravtsova Order 5211/5. Circulation 509Subscribe VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, st. Project, 4 Fig: 2