SU1286525A1 - Sand accumulating hopper - Google Patents

Abstract

The invention relates to sewage treatment plants, can be used in the complex i mechanical treatment of wastewater for washing sand from organic impurities and its storage and improves the efficiency of washing sand sludge sand. The storage hopper contains a hopper I with a tangential inlet nozzle 2. In the hopper, a vertical pipe 3 is installed with a funnel 4 for draining cleaned waste liquid. Washing of sand from organic impurities occurs in tray 5, which is connected to the sand trap. pipe supplying the pulp 6. For more efficient washing of sand from organic matter, the tray 5 is equipped with a pressure pipe 7 of industrial water with vertical nozzles 9 and 10 attached to it having conical nozzles 8. 2 Il. (L N9 00 Od JV 1C ate f ue.t

Description

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The invention relates to sewage treatment plants and can be used in a mechanical wastewater treatment complex for washing sand from organic impurities and storing it.

The purpose of the invention is to increase the efficiency of sand washing.

FIG. 1 shows a sand bunker, side view; in fig. 2 - section A-A in FIG.

Sand hopper consists of a metal hopper 1 with a tangential inlet nozzle 2 (Fig. 1 and 2). In the hopper there is a vertical pipe 3 with a funnel A for draining the treated waste liquid. The removal of sand from organic impurities occurs in tray 5, which is connected to the sand trap using pipe 6 for supplying pulp. The pressure pipe 7 of industrial water with conical nozzles 8 on short 9 and dpynny 10.pipe is mounted in the upper part of the tray at the wall opposite to the tangential pipeline 6 supplying the pulp. Tray 5 is connected to the metal hopper 1 via a tangential nozzle 2 of the valve 11. Excess waste fluid from the hopper is removed through a 12 "overflow pipe

Tray 5 (FIG. 2) consists of a curved bottom 13, mated with vertical walls 14, which are closed with a curved cover 15.

Sand bunker works as follows.

The sand pulp from the hydraulic elevator is fed through conduit 6, which is mounted tangentially in tray 5, as a result of which an initial rotational movement of the fluid flow is created. At the same time, technical water is supplied through conduit 7 with conical nozzles 8 on short 9 and dpinni 10 nozzles directed downward along the vertical wall of the tray, as a result of which this increases, while the vertical nozzles are unevenly high.

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flow, which provides a more efficient washing of organic matter from sand.

Further, the waste water enters the metal bunker 1, where the separation of sand from organically takes place: impurities due to the fact that the tray 5 is attached to the unker 1 tangentially. The sand is centrifugal: and the gravitational forces move to the bunker stacks and deposit on them at the bottom, and the organic impurities are collected in the center and drained along the vertical pipe 3. The water level in the bunker above the funnel 4 is ensured by the fact that its diameter smaller than the diameter of the inlet 2. The overflow pipe 12 maintains a constant differential, removing excess water into the pipe 3 due to the fact that the overflow pipe 12 has an open end located above the funnel 4 of the vertical pipe 3.

The advantage of the proposed frio sand storage bin compared to the known ones is that the impact on the sediment with liquid at higher speeds and greater viscosity intensifies the washing of organic matter from sand in a shorter time and, in this way, the length of the tray decreases.

Claims (2)

Invention Formula A sand storage bin containing a bunker, a vertical pipe installed in it with a funnel for draining the cleaned liquid, an overflow pipe attached to a vertical pipe and having an open end located above the funnel, a tray with a tangential slurry supply pipe, characterized by the fact that in order to increase the efficiency of sand washing, it is provided with a pressure pipe located in the upper part of the tray against the wall opposite the inlet nozzle t technical water with vertical connections to it 1 "1, equipped with conical nozzles. O five 0 five at the same time the vertical pipes through one are made uneven. 0 five 0 five flow, which provides a more efficient washing of organic matter from sand. Further, the waste water enters the metal bunker 1, where the separation of sand from organically takes place: impurities due to the fact that the tray 5 is attached to the unker 1 tangentially. The sand is centrifugal: and the gravitational forces move to the bunker stacks and deposit on them at the bottom, and the organic impurities are collected in the center and drained along the vertical pipe 3. The water level in the bunker above the funnel 4 is ensured by the fact that its diameter less than the diameter of the inlet 2. The overflow pipe. 12 maintains a constant differential, removing excess water into the pipe 3, due to the fact that the overflow pipe 12 has an open end located above the funnel 4 of the vertical pipe 3. The advantage of the proposed sandbox frio storage hopper compared to the known ones is that exposing the sediment to a liquid with higher speeds and greater viscosity intensifies the washing of organic matter from sand in a shorter time and, thus, decreases the length of the tray. Invention Formula A sand storage bin containing a bunker, a vertical pipe installed in it with a funnel for draining the cleaned liquid, an overflow pipe attached to a vertical pipe and having an open end located above the funnel, a tray with a tangential slurry supply pipe, characterized by the fact that in order to increase the efficiency of sand washing, it is provided with a pressure pipe located in the upper part of the tray against the wall opposite the inlet nozzle  however, the vertical nozzles of the same one are made uneven. t technical water with vertical connections to it 1 "1, equipped with conical nozzles.   X