Square buried horizontal flow dissolved air flotation machine

NegotiableUpdate on 03/20

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

After treatment with a square buried horizontal flow dissolved air flotation machine, a portion of the clean water (with a design index of 20-40%, usually 30% can be used) is pressurized by an air flotation circulation pump and mixed with air in the dissolved water tank. The air dissolves into the water, and the dissolved air efficiency reaches over 80%; The air in the dissolved gas tank is automatically flushed into the tank by the air compressor controlled by the liquid level controller; The dissolved water coming out of the dissolved gas tank has a pressure of 0.3-0.4Mpa at this time. After passing through the release device, the pressure of the dissolved water is reduced and released, and the pressure of the dissolved water is reduced to zero or negative pressure

Product Details

Square buried horizontal flow dissolved air flotation machine

Scope of use:

1. Used for removing suspended solids, oils, and various gelatinous substances from wastewater, such as wastewater treatment in industrial enterprises such as petrochemicals, coal mines, papermaking, printing and dyeing, slaughtering, and brewing;

2. Used for recycling useful substances, such as collecting fine fibers in papermaking wastewater.

Features:

1. The dissolved gas tank produces small bubbles with a particle size of 20-40um, which adhere firmly to the floc and can achieve good air flotation effect;

2. Low usage of coagulants reduces costs;

3. The operating procedures are easy to master, the water quality and quantity are easy to control, and the management is simple.

4. Equipped with a backwash system, the release device is not easily clogged.

Square buried horizontal flow dissolved air flotation machine

Precautions for daily operation:

1. Check and observe the water level of the dissolved water tank through the observation hole. Ensure that the water level does not submerge the filling layer and affect the effectiveness of gas dissolution; It should not be less than 0.6m to prevent the inclusion of a large amount of undissolved air in the effluent.

2. Pay attention to the condition of the pool surface. If you find that the surface of the debris in the contact area is rough and uneven, and the local water flow is violent, it may be due to a single release being blocked or closed, and it needs to be checked and replaced in a timely manner. If the surface of the floating slag in the separation area is found to be uneven, the pool surface usually protrudes from large bubbles, indicating poor adhesion of bubbles and magazines to flocs, and the dosage needs to be adjusted or the type of coagulant needs to be changed.

3. The decrease in winter water temperature affects the coagulation effect. In addition to taking measures to increase the dosage, the parallel flow dissolved air flotation machine can also increase the water flow rate or pressure, increase the number of microbubbles and their adhesion to the sheet-like material, to compensate for the increase in water viscosity and floating performance caused by the increase in gas and flocs, and ensure water quality.

4. In order not to affect the water quality of the effluent, it is necessary to raise the water level in the tank during slag scraping. Therefore, it is important to accumulate operating experience, summarize the optimal thickness and moisture content of floating slag accumulation, regularly operate the slag scraper to remove floating slag, and establish a slag scraping system that is in line with the actual situation. In general, after the gas dissolution tank is self controlled, the scraper runs every 2-4 hours according to the amount of slag. The movement line of the scraper of the slag scraper should be opposite to the direction of water flow. In order to ensure that the movement speed of the scraper is not greater than the speed of the floating slag overflowing into the slag collection tank, the travel speed of the slag scraper should be controlled at 50-100mm/s.

5. According to the flocculation of the reaction tank and the changes in the floating slag and water quality in the separation area of the air flotation tank of the laminar flow dissolved air flotation machine, the dosage of coagulant should be adjusted in a timely manner. At the same time, the operation of the dosing pipe should be checked regularly to prevent blockage.

Advantages:

1. The release device in this device is evenly distributed between the first and second partitions. The release device can evenly release the small bubbles generated in the dissolved gas tank, and the stirring strip can accelerate and fully mix the small bubbles in the sewage, improving the effectiveness of sewage treatment;

2. Due to the height of the slag collection chamber and the adjustable distance of the scraper plate *, when the scraper plate is adjusted, suspended solids can always enter the interior of the slag collection chamber. The rubber diaphragm plays a role in separating the slag collection chamber from sewage, and sewage will not enter the slag collection chamber;

3. Due to the fact that the slag discharge outlet is located at the bottom of the right end of the slag collection chamber, while the left end of the slag collection chamber is located inside the reaction tank, manual dredging can be used at any time when suspended solids are blocked, without the need for slag discharge pipelines, which avoids the phenomenon of blockage and improves the efficiency of sewage treatment, making it suitable for promotion.