RU671U1 - Radial sump - Google Patents

Abstract

A radial sump for clarification of industrial effluents, containing a sludge collector mounted on a support structure of a rake with lifting and rotating mechanisms, a feed chute, a drain of clarified liquid, an overflow bridge and an unloading funnel, characterized in that the rotation mechanism of the rake is made in the form of a drive sludge perimeter a gear ring mounted on a roller track and driven into rotation by a group drive.

Description

COMMERCIAL RESTAURANT

The utility model relates to devices for cleaning industrial effluents from fine mechanical particles and can be used in mining enterprises, for example, in coal enrichment plants.

Known radial sump for the separation of suspensions and mixtures used in mining and other industries ij.

The sump includes a cylindrical casing with a bottom, a cylindrical flow directional coaxially mounted in the casing, a partition for inputting the initial mixture and withdrawing the separated components, and a rowing device with rotation and rake lifting mechanisms.

The main disadvantage of the known radial sedimentation tank is that the rake rotation mechanism is made central, therefore the force required to bring the rake into motion with a certain angular velocity is large enough, which is associated with a high load in the elements of kinematic gears, and, therefore, with increased their dimensions and weight.

Known radial sump for clarification of industrial effluents, used in coal processing plants for thickening untreated coal sludge and containing a sludge collector, a support column, on which rakes are mounted with lifting and rotation mechanisms, a rake, a feed chute, a clarified liquid discharge chute, an overflow jumper and an unloading jumper funnel fSj - prototype.

The disadvantages of the known device include the fact that the rotation mechanism of the rake is installed, as in analogue I IJ, on the central shaft, and to bring the rake into rotation requires considerable effort on the drive, which is associated with the weight of the drive and increased costs for its manufacture and operation .

 l /

M cl V01D V06

The main technical task is to facilitate it by reducing the effort on the drive and thereby reduce the cost of its manufacture and operation.

The main technical problem was solved in the claimed model as a result of the fact that the radial sedimentation tank for clarifying industrial effluents contains a sludge collector mounted on a supporting rake structure with lifting and rotation mechanisms, a feeding chute, a clarified liquid discharge chute, an overflow jumper and an unloading funnel. The claimed device is characterized in that the fur, the lower rotation of the rake is made in the form of a drive gear ring located along the perimeter of the sludge collector, mounted on a roller track and driven into rotation by a group drive.

the execution of the rotation mechanism in the form of a gear ring, driven into rotation by a group drive, and its removal to the periphery of the sludge collector, made it possible to reduce the required force on the drive by an order of magnitude. By reducing the effort by such a significant amount, it became possible to replace the worm gear chain, which is much cheaper and easier to operate. As a result of such a replacement, the reliability of the device increases and its service life increases.

The claimed device is illustrated by the accompanying drawings, where

FIG. I - shows a general view of the sump;

Fig, 2 - section aa;

FIG. 3 - view B (fragment of the mechanism of rotation of the rake on an enlarged scale).

The radial sump contains a sludge collector I, a support structure on which rake 2 with a lifting mechanism 3 and a rotation mechanism 4 of rake 2 are mounted, a feed chute (not shown in the drawings), a drain of the clarified liquid 5, an overflow bridge b and a discharge funnel 7.

  . ev 10 - four). The rotation mechanism of the rake 4 is made in the form of a toothed ring 12 located around the perimeter of the sludge collector I, the toothed ring 12 is mounted on a roller track formed by a roller support system 13, and is driven by a group drive containing four motor reducers 14 in this particular example. For transmission torque from the gear ring 12 to the rake 2, the rotation mechanism of the rake 4 is equipped with two beams 15 connected to the central shaft 8 through a NQ / FTU - sieve 16. The lifting mechanism of the rake 3 is made in the form of a hydraulic cylinder, a pump Fitting minutes and distribution of hydraulic equipment of the system (the hydraulic cylinder for the drawing pump device and distributor hydro not shown). To control the operation of the mechanisms of the radial sedimentation tank, a control cabinet is installed on the upper platform of the supporting bridge structure 17, and to control the operation of the mechanisms, a control panel with measuring equipment is placed in the control room (the control cabinet and remote control are not shown in the drawing). The device operates as follows. Contaminated sludge recycled water enters the feed chute through a sieve 16, which separates larger components from the mass of sludge. Sludge flows radially from the center of the sump to its periphery. The flow rate of sludge water decreases as the jet cross section increases, and therefore, sludge particles can freely fall to the bottom of sludge collector I, and clarified water is discharged into discharge chute 5, located along the perimeter of the sump, and thus returned to the water circulation. Simultaneously with the entry of contaminated water into the sump from the remote control jr.

collection I settled sludge on it towards the discharge funnel 7.

In the case of increased resistance to rotation of the rake 2, associated with a large amount of sediment at the bottom of the sump I, the rake 3 lifting mechanism is activated, lifting the rake 2 up, thereby removing the scrapers II from the zone of high resistance. Lowering the rake 2 is produced at a slower speed with the pump unit turned off.

In a specific example of the claimed radial sump as a result of using the rotation mechanism of the rake 4 in the form of a toothed ring 12 moving along the roller bearings 13. and driven by a group drive, the drive force decreased by an order of magnitude (in the prototype, the drive force is 40 T).

In the claimed radial sump at the same speed of rotation of the rake 2, the force on each motor-reducer 14 is I T. For four motor-reducers 14, as is done in a specific example, the force is 4 T,

The elimination of the worm gear radial sump from kinematics by reducing the drive force and replacing it with a chain drive reduced the capital costs of manufacturing and installing the drive by four times.

LIST OF USED SOURCES

1 „A.S. I666I46 MNI V01D V02, V24. Radial sump

(Author V.V.Kochetkov et al. (USSR). Declared No. 4740738/26, 06/19/89 Publ. 30.07.91, Bulletin No. 28.

2. Promotional brochure of the mining engineering plant nMOiM, Katowice, Poland (prototype - copy attached).

utility model authors

A.M., Khobatkov S.A. Koretsky.

V.A. Lyulev G.G. BelyANIN

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Claims (1)

A radial sump for clarification of industrial effluents, containing a sludge collector mounted on a support structure of a rake with lifting and rotating mechanisms, a feed chute, a drain of clarified liquid, an overflow bridge and an unloading funnel, characterized in that the rotation mechanism of the rake is made in the form of a drive sludge perimeter a gear ring mounted on a roller track and driven into rotation by a group drive.