Combined automatic backwashing water purifying plant

Abstract

The invention relates to a combined automatic backwashing water purifying plant which is mainly composed of three major parts: a coagulating device, a precipitating and clearing device and a filter device as well as a microcomputer controller, wherein the coagulating device, the precipitating and clearing device and the filter device are three major parts and all have an independent steel structure; the coagulating device is composed of a plurality of small square chambers; due to the independent structure, the unique design of the coagulating device sets aside enough staying time and reaction route, so that the coagulating device is good in coagulation effect and thorough in reaction; the precipitating and clearing device is composed of a finger type water gathering tank, a plastic inclined pipe, a mud gathering bucket and a mud discharge pipe; and the filter device is composed of a water purifying chamber, a communication tank, a filter chamber and a backwashing pipe. The combined automatic backwashing water purifying plant is formed by combining the three major parts: the coagulating device, the precipitating and clearing device and the filter device; as a result, the division of the process is clear; the mixed reaction time and the precipitating, clearing and staying time both are enough; the effect is very obvious; the quality of the yielding water is stable and good; and the automation degree is high.

Description

[0001] The invention belongs to water quality purification equipment for rivers, rivers, lakes and reservoirs, and is suitable for purification treatment of industrial and mining enterprises, urban and rural industries and civil domestic water. 【Background technique】 [0002] The integrated automatic backwashing water purifier has been operated on the market. It integrates reaction, sedimentation and filtration. Due to reasons such as transportation, loading, unloading and lifting, many design parameters have been compressed. This "integrated automatic backwashing "Water equipment" has the following defects: [0003] 1. The turbidity range of influent water treatment is narrow: the "water purification equipment" already in operation on the market is generally difficult in dry season or low turbidity (≤50 degrees) influent water treatment; it can only be increased by increasing the input of flocculating agents amount, and the coagulation effect is not ideal, but it will increas...

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Problems solved by technology

[0004] 2. The volume of coagulation equipment and sedimentation clarification equipment is small, and the residence time is not enough, usually 5-6 minutes; Cause small "alum flowers" and small velvet particles to be taken to the filter chamber to be filtered, increasing the sediment on the surface of the filter material, thus increasing the frequency of backwashing and greatly wasting precious water resources

[0005] 3. The water collection port above the sedimentation and clarification chamber is unreasonable: after the integrated water purification equipment has undergone coagulation and sedimentation clarification processes, the supernatant should be clearer. Due to the above reasons, plus the collection of the supernatant The short side of the nozzle is to collect water horizontally, and it is close to the water inlet, thereby pulling the "alum flower", which should give good conditions for settlement, but the speed increase destroys the settlement environment of the "alum flower", as described in the above 2, repeat the filtration The mistakes of frequent backwashing in the room

waste of precious water

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