The installation, debugging and matters needing attention of dissolved air floatation sewage treatment equipment
(a), placement
1, the configuration for the former, we must tamp foundation. And concrete mortar pad high 100-150mm. Can also be overhead placement, but there must be configured to run when the baggage weight.
2, the configuration in place the necessary level of mediation.
3, the configuration is required to clean with the sewer, controllable channel, can also be directly connected to the admission pipe regulating pool, so that washing floatation pool water is pushed to.
Connection between the 4, a sewage inlet and answer the pool by the way, to show the shorter the better, so as to avoid the flocculation was destroyed in the pipeline.
5, the water outlet can be connected to sewers, if need to enter the next processing step, can access and connected with the next processing punishment configuration phase.
6, the sludge outlet can be connected to the tank sludge or sludge disposal punishment configuration.
7, the electrical box as usual should be arranged in a staircase side, the environment should be clean, clean.
(two), debugging
A, configuration and debugging, should be prepared to do the following things:
1, to the washing pool all the stolen goods, sundry.
2, on the pump and air compressor and other necessary parts for lubrication lubrication.
Start the pump 3, switch on the power, check the car, to whether the arrow marked bias draw. Start air compressor with manual control, check the air compressor operation is under the constant, invention is environment should be timely find out the reason.
4, press the froth scraping machine switch, make it to the dissolved air system of a carbonyl walking. After running to block function in stroke, froth scraping surface reverse walking, until the sludge tank, a travel block of the scraper is turned up, press the stop button to stop shaving foam.
B, the test run:
1 and add: make water flotation machine to arrive from sludge tank baffle along about 20- to 50mm, flotation tank level of rugged, available water collector control.
2, dissolved air system operation: close all control valves, the electrical knob switch to automatic position, start the pump, air compressor also at this time into the automatic working state, then the order to open the water pump inlet valve and outlet valve, pressure gauge pressure rise as usual should reach 0.4-0.5mpa. At this time the open solution water discharge control valve gas tank, the dissolved air water through release, release induced air flotation pool, large quantities of fine bubbles appear floatation pool, the water into a milky white, gas dissolved air system is provided by the air compressor. Because the dissolved gas and water to keep the tank atmosphere away, the tank atmosphere gradually eliminated, the water level rose. When the water level rose to certain position, the floating ball level meter to control air compressor cylinder with the atmosphere of things, so that a sufficient amount of the.
3, the flotation performance: dissolved air system normal operation, will be answered after dosing sewage is sent to the flotation mixed pool. Han weight first small, normal gradually increased to the rated value.
4, dissolved air water: dissolved air water first with tap water for the back flow, normal, switch to the treated water back to water. Such as waste water detergent amount is large, the bubble, the higher the results can not stop water.
5, scum accumulated to a certain thickness, start the froth scraping machine.
6, the configuration is shutdown, should be treated uniformly closed valve control of sewage, and then close the sewage pump, the foam foam scraper scrape, stop, and then open the water valve, and pass into the water to run 30 minutes, close the gas dissolved water inlet control valve, stop pump at the end of Qing dynasty.
(three), interloper incident and daily maintenance
1, dissolving tank gauge pressure shall not exceed 0.6MPa.
2, water pump, air compressor, foam blowing South secret lubricated regularly, usually air compressor two months with a oil, half a change of oil.
3, flotation tank should be considered sediment much, hold regular washing.
Sewage must dosing 4, entered the air flotation machine, otherwise the result is not ideal.
5, regular check valve tank dissolved quiet on whether reliable.
6, release of plugging, can open the vacuum valve, so that the release tabs open, water used to make their own washing, the blockage of flushing, and then close the valve, the valve is usually only need to open the 10-20 seconds.
