CN2246660Y - Moving bed analog filter tank of automatic turbidity detecting for alum-feeding system - Google Patents

Abstract

The utility model relates to a moving bed analog filter tank of turbidity detection for an automatic alum-feeding system, belonging to a device in an automatic alum-feeding system of a water purifying plant. The utility model is mainly characterized in that the analog filter tank is provided with a filtering material lifter, a sand delivery pipe, a sand washer, etc. The utility model can continuously carry out filtering, turbidity detection and backwashing for filtering material, continually provide continuous and reliable turbidity detecting data for the automatic alum-feeding system and overcome the problem that the existing common analog filter tank has turbidity detecting error caused by the periodic backwashing to the filtering material. The utility model has the advantages of large adaptation range to the quality of raw water, stable and reliability turbidity detection, etc. The utility model has large advantage on aspects of alum-feeding technical innovation, etc., in new water supply plants and old plants.

Description

Automatically add the moving-bed simulation filter tank that alum system turbidity detects

The utility model belongs to the automatic control equipment in the purifier (or factory), is specifically to belong to water purification plant to add a kind of turbidity test set in the alum system automatically.

The automatic control equipment that water purification agent adds in the present domestic water purification plant, there is the mathematical simulation computer to control, there is application streaming current principle computer to control, also there is various ways to improve the clean water treatment level of management by the control of common simulation filter tank computer, but exist the computer calculated value and can not directly reflect actual effluent quality demand, and two in common simulation filter tank has been used alternatingly the cycle and changes and to cause error, and program is multiple assorted, problems such as system water price lattice height.

The utility model purpose will overcome exactly in the above clean water treatment process and has problems, and a kind of moving-bed simulation filter tank that alum system turbidity detects that adds automatically is provided.This filter tank with automatically continuously turbidimeter, computer setter, add the alum pump and link to each other, form and add alum system (Fig. 1) automatically, with further raising water treatment quality and efficient, the reduction water producing cost.

A kind of moving-bed simulation filter tank (Fig. 2) that adds the turbidity detection of alum system automatically mainly comprises round shape pond body (1), water inlet pipe (5), filter material layer (6), rising pipe (7), water shoot (11), filtrate lifter (8) is equipped with in the lower end that it is characterized in that moving-bed simulation filter tank, and is linked to each other with the sand-washing device (10) on top, filter tank by sediment transport pipe (9).This round shape pond, filter tank body diameter D=200～2000 millimeters, height H=2000～5000 millimeter.The filtrate lifter can adopt water sprayer, belongs to market product.The power that filtrate promotes can be waterpower, also can be pneumatic.The sand-washing device bottom is that circular cone tube top is cylinder, and each size is used general water purification expertise and calculated definite by waterpower.This filter tank is in operational process, because filtrate is promoted and flushing continuously, filter material layer moves down continuously equably, make to filter and detect turbidity also for moving continuously, constantly provide continuously reliably turbidity to detect data to the computer setter, avoided the periodic duty of common simulation filter tank and the problem that turbidity detects error occurs.

The utility model compared with prior art, it is big that it has raw water quality subject range, turbidity detects characteristics such as reliable and stable.

Fig. 1 is the system schematic of the automatic alum adding equipment in moving-bed simulation filter tank.

Fig. 2 adds the moving-bed simulation filter tank vertical section figure that alum system turbidity detects automatically

The utility model is to realize like this.Former water is after adding the alum mixing, distribute a small gangs of water and enter moving-bed simulation filter tank body (1) by water inlet pipe (5), current are bottom-up to be able to filtration, purification by filter material layer (6), clear water enters turbidimeter (2) by rising pipe (7), in time record and simulate the water turbidity data and promptly import computer setter (3), as calculated and instruction add alum pump (4) and in time adjust the alum amount that adds.The pressure water that the outside provides (or pressurized air) inserts lifter (8) by pipeline, slowly moves down at jet suction function lower filter material layer, and the bottom filtrate is evenly promoted continuously, enters the sand-washing device (10) that is arranged on top by sediment transport pipe (9).The about waterhead of sand-washing device cylindrical shell causes that an interior water is upwards mobile automatically, sinks to forming back flush with lifting sand grains gravity, cleans sand filtering material and slips into the additional filter material layer in filter tank from end opening, and muddy water is discharged by water shoot (11).Adding the adjusted former water of alum amount enters moving-bed simulation filter tank once more and carries out turbidity and detect whether meet set(ting)value.So constantly adjust and add the alum amount, make it constantly to meet the raw water quality that changing adding the actual demand of alum amount.

Claims (2)

1. add the moving-bed simulation filter tank that alum system turbidity detects automatically, mainly comprise round shape pond body (1), water inlet pipe (5), filter material layer (6), rising pipe (7), water shoot (11), it is characterized in that said moving-bed simulation filter tank is equipped with filtrate lifter (8), sediment transport pipe (9), sand-washing device (10), make to filter and detect turbidity and filtrate back flushing for moving continuously.

2. add the moving-bed simulation filter tank that alum system turbidity detects automatically according to claim 1 is described, it is characterized in that said moving-bed simulation round shape pond, filter tank body diameter D=200～2000 millimeters, height H=2000～5000 millimeter.

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