CN203060957U - Device for preventing liquid draining opening of inner annular groove of filter from being blocked - Google Patents

Abstract

The utility model discloses a device for preventing the liquid draining opening of the inner annular groove of a filter from being blocked. The device comprises a filter disc, filter cloth arranged on the filter disc and an inner annular groove at the center of the filter disc, wherein a liquid draining opening is formed at the bottom of the inner annular groove; a water pipe is arranged above the filter cloth; a plurality of sprayers A are axially arranged on the water pipe; the sprayers A are inclined to the filter cloth; and a sprayer B is arranged at the top end of the water pipe, and inclined to the bottom surface of the inner annular groove. With the device, in the flushing process of the filter cloth, as the sprayer B sprays water to clean the inner annular groove, gypsum which overflows or leaks from the filter cloth and directly enters the inner annular groove can be flushed away continuously without blocking the liquid draining opening; the device is good in anti-blocking effect through a plurality of tests; and water used by the sprayers is circulating process water for flushing the filter cloth so that the cost is low. Furthermore, the device is convenient for mounting and convenient for overhauling, and effectively avoids the blocking of the liquid draining opening.

Description

A kind of device that prevents that the liquid mouth stops up under the filter inner groove

Technical field

The utility model relates to for the phosphoric acid production device, the device that the liquid mouth stops up under especially a kind of turntable type filter inner groove.

Background technology

At phosphoric acid plant, traditional filtration operation is filtered feed pump the filter cloth flushing water is provided; overflow or the gypsum that leaks down directly enter inner groove like this, if each amount of gypsum is very big, gypsum can accumulate in liquid mouth under the inner groove; then cause liquid pipe plug plug down through regular meeting, cause stopping.It is logical that traditional treating method is exactly that artificial water pipe dashes, and needs disassembly, cleaning when serious; Caused very big loss to production, and the required amount of labour is big.

Summary of the invention

At the deficiencies in the prior art part, the utility model aims to provide a kind of device that prevents that liquid mouth under the filter inner groove from stopping up, and guarantees the turntable type filter when work, and the liquid mouth does not stop up under the inner groove below the filter.

For solving the problems of the technologies described above, the technical solution adopted in the utility model: a kind of device that prevents that the liquid mouth stops up under the filter inner groove, comprise filter disc, be arranged at the filter cloth on the filter disc, the inner groove at filter disc center, be provided with liquid mouth down in the bottom of inner groove, be provided with water pipe above filter cloth, axially be provided with a plurality of shower nozzle A at this water pipe, shower nozzle A favours filter cloth, on the top of water pipe shower nozzle B is set, shower nozzle B favours the inner groove bottom surface.

Adopt said apparatus, filter cloth is in flushing process, if overflow or the gypsum that leaks down directly enter in the inner groove from the filter cloth, owing to there is shower nozzle B water spray to clean inner groove, so can constantly being cleaned, gypsum washes away, can not cause down the liquid mouth to stop up, this device experiment repeatedly, blocking-proof result is good, and the water that this shower nozzle uses is the circulation technology water of flushing filter cloth, low cost.

This device is easy for installation, and time liquid mouth blockage has effectively been stopped in easy access.

Description of drawings

Fig. 1 is the utility model structural representation;

In the accompanying drawing: 7 times liquid mouths of 1 filter disc, 2 water pipe 3 shower nozzle A, 4 pipe valve 5 shower nozzle B, 6 inner grooves.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

As shown in Figure 1, a kind of device that prevents that the liquid mouth stops up under the filter inner groove, comprise filter disc 1, be arranged at the filter cloth on the filter disc 1, the inner groove 6 at filter disc 1 center, be provided with liquid mouth 7 down in the bottom of inner groove 6, above filter cloth, be provided with water pipe 2, axially be provided with a plurality of shower nozzle A3 at this water pipe 2, shower nozzle A3 favours filter cloth, the water of shower nozzle A3 ejection just tilts to wash filter cloth, water and filter cloth contact-making surface are big, current flow away towards direction initialization, on the top of water pipe 2 shower nozzle B4 are set, and shower nozzle B4 favours inner groove 6 bottom surfaces, the water of shower nozzle B4 ejection tilts to wash inner groove 6 bottom surfaces, flow along inner groove 6, with the gypsum that falls on the filter cloth, the slurry of overflow washes away on the filter cloth, is drained by following liquid mouth 7.

Claims (1)

1. device that prevents that liquid mouth under the filter inner groove from stopping up, comprise filter disc (1), be arranged at the filter cloth on the filter disc (1), the inner groove (6) at filter disc (1) center, be provided with liquid mouth (7) down in the bottom of inner groove (6), above filter cloth, be provided with water pipe (2), it is characterized in that: axially be provided with a plurality of shower nozzle A(3 at this water pipe (2)), shower nozzle A(3) favours filter cloth, top at water pipe (2) arranges shower nozzle B(4), shower nozzle B(4) favour inner groove (6) bottom surface.

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