Use of pump impeller mixing 1. simple equipment, no need for special mixing structures 2. no additional energy, operating costs 3. the use of ferric chloride and other corrosive agents will corrode the pump impeller 4. water pumps and suction pipe more need to increase the dosing equipment 5. suction pipe dosing, the concentration of coagulant should be slightly higher, or else diluted in the water sealing tank, Hydrolysis and reduce the coagulation effect 1. for a variety of water plants 2. dosing point from the flocculation tank closer (generally within 100m), otherwise the floc may be formed in the pipeline precipitation or flocculation tank before entering the broken 3. should be set up water sealing box to prevent air from entering the suction pipe of the pump
Use of pressure pipe mixing 1. no need to increase the number of equipment 2. the mixing effect can not always be guaranteed, especially when the pipe When the flow rate changes 3. dosing management needs to be inserted into the pressure water pipe 1/3-1/4 pipe diameter 4. pressure water pipe dosing, coagulant solution must be screened with a screen to prevent clogging of the race water jets and rotameters 1. for the flow rate of the pipeline does not change much and a variety of water plant 2. dosing port to the end of the pressure pipe should be no less than 50 times the diameter of the water inlet pipe
Static mixers 1. Investment, easy to install in the pipeline maintenance workload 2. can be quickly mixed, the effect is good 3. produce a certain head loss. In order to reduce energy consumption, the pipe flow rate is generally used 1m/5 or so 1. for small changes in flow rate of water treatment works 2. mixer using 1-4 shunt unit
Diffusion mixer 1. mixer structure when the conical cap after the addition of a hole in the plate, the pipe flow rate of 1.0m/s or so. The projected area of the conical cap for the intake pipe area of 1/4; hole plate opening area for the intake pipe area of 3/4; mixer time 2-3s 2. mixer length of 0.5m or more, with a flange mounted on the original water pipe diffusion mixer head loss of 0.3-.04m 1. mostly used for the diameter of the 300-400mm intake pipe 2. the installation should be below the water surface of the flocculation tank 3. suitable for Medium and small water plants
Fall water mixer 1. agent filling into the fall water flow, mixing fast, simple equipment 2. produce a certain head loss 3. installed in the mixer outlet pipe bombardment casing, by the casing of the height of the adjustment of the mixing effect 1. for medium and small water plants 2. activity casing inside and outside the gap between the water level in the 0.3-0.4m, the largest part of the Department of more than 1.0m
Porous bulkhead mixing tank
Multi-hole plate mixing tank p>Porous bulkhead mixing tank 1. better mixing effect 2. head loss is large 3. when the flow rate changes, affect the mixing effect (can adjust the number of submerged holes in response to changes in the flow rate) 1. for high water table areas 2. for medium and small water plants
Split-flow bulkhead mixing tank 1. mixing effect is good 2. head loss is large 3. occupies a larger ground 1. for high water table areas 2. for large and medium-sized water plants
Split-flow bulkhead mixing tank 1. mixing effect 2. head loss is large 3. occupies a larger ground 1. for high water table areas 2. for large and medium-sized water 2. for large and medium-sized water plants
Slurry plate mechanical mixing tank 1. better mixing effect, head loss is smaller 2. need to consume electricity, mechanical equipment management and maintenance is more complex large, medium and small water plants are suitable