Nanjing Sino German environmental protection equipment manufacturing Co., Ltd.
Address: Nanjing City Jinniu Lake District Liuhe Street Community Shuangqiao Xinguang Road No. 115
Contact: Xu Min (Manager) 18913960189
Fax: 025-57530868
Mailbox: njxm668@163.com
Q:1215040622 Q
Submersible aeration machine use
QXB type centrifugal submersible aerator, aeration tank for biochemical treatment of various wastewater treatment engineering technology of aerated grit chamber, pre aeration tank and aerobic nitrification tank aeration pond aeration and mixing.
The CASS process is used to deal with the residential sewage, the water quality is stable, which is superior to the traditional biological treatment process. The water outlet is close to the standard of living miscellaneous water quality. After filtration and disinfection treatment, it can be used as reclaimed water reuse.
Filtration by membrane separation technology, membrane separation technology is a material separation technology in the operation of a unit. The biggest characteristic of membrane separation is the dynamic pressure, which is not accompanied by a large amount of heat. Thus it has the advantages of energy saving, continuous operation, easy automation and so on. With the field for the development of CASS technology of water recycle, the development of a new type of filter membrane (disc type filter membrane), the membrane has high flux, long service life, high pollution intensity and easy backwashing. Engineering application shows that it has a good application prospect.
Because the district sewage contains pathogenic bacteria, the disinfection can be used to ensure the use of safety, before the membrane filter to carry out disinfection is conducive to the protection of the membrane. Disinfection with sodium hypochlorite disinfectant can reach disinfection requirements.
Sewage treatment capacity is above 1000m3/d, the general method of the concentrated dehydrated sludge treatment, the small size of the produced sludge amount, generally concentrated regularly with large truck Sinotrans landfill or as fertilizers.
In many engineering applications based on CASS+, the recent launch of the membrane filtration process has been applied to the treatment and reuse of sewage equipment Institute of command and Technology (2000m3/d), general staff of sewage treatment and reuse (3000m3/d) and People's Republic of China Ji'nan customs sewage treatment and Reuse Engineering (100m3/d). In the Ji'nan customs sewage engineering design, make full use of the terrain, both to protect the original green unified planning, and green and wash the vehicle using the treated water, saving a lot of tap water, users benefit. In today's increasingly scarce water resources, the water reuse will be used for greening, flushing vehicles and flush toilets, and its wide range of applications. The characteristics of cyclic activated sludge process with stable effluent quality, good treatment effect, simple running operation management, realize the centralized control and field manual and automatic control of the actual operation, through a lot of practical application, the process of supporting equipment of water decanter and water jet aerator has matured, can achieve the reuse with the standard water filtration and disinfection treatment, according to the actual demand, can be designed into underground or semi underground, so it has the advantage of saving land. Water reuse is imperative, the cycle of cyclic activated sludge + membrane filtration process for district sewage treatment and reuse provides a new process and equipment.
First, QXB centrifugal aeration machine product advantages:
The higher the oxygen dissolution rate, micro bubble ratio, high oxygenation efficiency and oxygen filling area wide; no dead in the pool, the level of exposure to air entrained air bubbles in every corner of the bottom of the pool that wash unit; simple and compact structure, long service life, can bear large load bearing, shaft mining oil bath the sealing cavity of the air suction impeller and prevent water contact with the seal, which ensure aeration machine in 24 hours of continuous work, long-term trouble free operation; save the project investment, no need to provide air, save blower, convenient installation, low noise.
Two, QXB centrifugal aeration machine product uses:
Centrifugal submersible aerator aeration tank for sewage treatment plant and aerated grit tank mixture of sewage sludge oxygenating and mixing, and biochemical treatment or pond aeration of sewage.
Three, QXB centrifugal aeration machine inquiry need to know:
The maximum depth of the pool, pool type, medium characteristics, the required intake, motor power and other related data.
Four, QXB centrifugal aeration machine product principle
QXB type centrifugal submersible aeration machine for direct connection structure. The rotation of the impeller of a centrifugal force generated in the water, a negative pressure zone is formed around the impeller by centrifugal force, air is sucked through the air inlet pipe, air and water in the mixing tray mixed mixture evenly then this good automatically discharged from the outlet.
This process includes the following aspects: mixing the air mixed with water generated after gas-liquid mixing effect, gas-liquid mixture outlet form circulation and convection; oxygen molecules in the high-speed movement of a large amount of air to obtain a high oxygen absorption efficiency.
Nine, transport and use of matters needing attention
Never allow for cable suspension or lifting aerator aeration machine. In the chain hook handling or suspension aeration machine can hook on the handle or cover rings.
If the aeration machine is still in use or immersed in water, the temperature below 0 degrees Celsius, you can continue to use.
The diving aeration machine uses the grease or the lubricating oil to carry on the lubrication. Because the seal wear, oil or lubricating oil leakage. At this time, please hurry up the aerator sent to the factory maintenance department or authorized repair, replace the seal, so as not to burn out the motor.
When the power is not cut off, do not move the aeration machine, people may not enter the water.
After installation of submersible aeration machine, can not be long-term immersion in water, it is recommended to run at least 4 hours per half month to check its function and adaptability, or to bring up the dry place.
Submersible aerator in sewage can not be placed at the entrance, when the chassis is put in the mud or sand, diving aerator vibration generated due to subsidence, in this case, suggestions will be suspended or aerator on a large plate.
Submerged aeration machine due to the working principle, the maximum immersion depth should not exceed 3 meters.
Diving aeration machine must ensure safety grounding.
Ten, instructions for use
Before starting the submersible aeration machine, the system shall be inspected by a qualified electrician to ensure that the following electrical protection measures are required.
Before running, the submerged aeration machine is used to check the electrical insulation of the stator winding of the motor by 0 - 500VResistance, the minimum shall not be less than 1 mb.
The scope of supply voltage must be marked on the nameplate of the rated voltage of the power supply voltage of + 5%, higher value not allowed to exceed the rated voltage of 10%, if the power supply from the submerged aerator using local distance, the cross-sectional area of the cable should be bold, joints should be as less as possible, otherwise it will cause the voltage drop too much and, the joint should be sealed and waterproof.
Four core cable, with their ground, usually yellow line, to ensure safety, must be ground and grow out of prison than other 50mm.
Check the direction of rotation of the impeller
Using three - phase power to get the diving aeration machine, in the first start or re - Installation of submersible aeration machine after the re - installation should check the direction of rotation, moving direction is not correct, it will reduce efficiency, and damage to the pump.
Inspection methods, submersible aerator in the final before installation, should give high and simple start, looks up from the bottom water submersible aerator and impeller counterclockwise. If a few diving aeration machines are connected to a controller, each of the submerged aeration machines must be examined separately. If the rotation direction is not correct, the position of any two lines in the three-phase line can be switched, and the direction of rotation can be changed.
Nanjing Sino German environmental protection equipment manufacturing Co., Ltd.
Address: Nanjing City Jinniu Lake District Liuhe Street Community Shuangqiao Xinguang Road No. 115
Contact: Xu Min (Manager) 18913960189
Fax: 025-57530868
Mailbox: njxm668@163.com
Q:121504062 Q