Chemical Dosing Machine Polymer Dosing System for Sewage Treatment
The function of the automatic drug dosing device is to dissolve and dilute the powder or liquid flocculant into flocculant solution. The powdery agent in the hopper is sent into the mixer through the quantitative feeding device, and enters into the solution tank after completely mixing with water. The mixed liquid forms a solution of uniform concentration after multi-stage mixing, and finally enters into the liquid storage tank, and is added to the dosing point through the metering pump.
Product Features
1. High degree of automation, the system is controlled by PLC, with intuitive human-computer interface, and easy and convenient operation.
2. The dosing system is stable and reliable. In case of failure, relevant equipment will automatically stop as required.
3. The screw feeder is used to feed powder, and the speed closed-loop control is used to ensure that the feeding is uniform, dispersed, and the accuracy is within 1%.
4. Under the specified production capacity and continuous liquid feeding conditions, the curing time of the prepared solution shall be guaranteed to be more than 2 hours. Its preparation concentration is 0.05% - 0.5%.
5. The box is made of 304 stainless steel and PVC.
6. The three-tank overflow solution operation system is adopted to make the equipment simple in structure, small in volume and convenient in installation. The dosing machine is suitable for continuous dissolution and continuous addition of chemicals.
Parameters
Type | QJY-500 | QJY-1000 | QJY-1500 | QJY-2000 | QJY-3000 |
production abilityQ(L/h) | 500 | 1000 | 1500 | 2000 | 3000 |
Size | 900x1500x1650 | 1000 x 1625 x1750 | 1000 x 2440x1800 | 1220 x 2440 x180C | 1220x3200x2000 |
Powder Dosing PowerNi(KW) | 0.18 | 0.18 | 0.18 | 0.18 | 0.18 |
blender | Blade diameterG(mm) | 250 | 250 | 250 | 250 | 250 |
Vertical spindle speed(i/min) | 96 | 96 | 96 | 96 | 96 |
PowerN2(KW) | 0.55 x 2 | 0.55x2 | 0.55 x 2 | 0.55x2 | 0.55x2 |
Dosing screw pump | Flow Q2(mV h) | 1 | 1 | 1.5~2.0 | 1.5-2.0 | 3.0~ 5.0 |
Lifth(m) | 20 | 20 | 20 | 20 | 20 |
Power N3(KW) | 1.1 | 1.1 | 1.5 | 1.5 | 2.2 |
Water Inlet Dia(mm) | 20 | 20 | 25 | 25 | 32 |
Water outlet Dia(mm) | 20 | 20 | 25 | 25 | 32 |
Installation | B | 900 | 1000 | 1000 | 1220 | 1220 |
L | 1500 | 1625 | 2440 | 2440 | 3200 |
H | 1650 | 1750 | 1800 | 1800 | 2000 |
Hi | 800 | 1050 | 1050 | 1050 | 1350 |
Real picture

Company Profile
Jiangsu Longdai Environmental Technology Co., Ltd. is an environmental protection equipment
manufacturer with 11 years of experience. It has provided a large number of sophisticated
environmental protection equipment at home and abroad, established three branches in China, and cooperated with many universities to build Longdai R&D center. There are 4 middle doctors, 10 masters, and 25 senior engineers.
Main business: "Petrochemical Wastewater Treatment, Urban and Rural Wastewater Treatment,
Waste Gas Collection and Treatment, Industrial Wastewater Treatment, etc."
Main equipment: "Integrated treatment equipment, grille decontamination machine, sand water
separator, mud scraper, air flotation device, dosing device, sludge thickener, rotary drum micro filter, conveyor, etc."
The technical team participates in technical exchange meetings every year, exchanges experience with professionals, continuously improves technical competitiveness, and provides customers with the clearest and most practical design solutions.
The processing team controls the manufacturing details of each equipment, and manufactures
the most sophisticated and reliable equipment for customers.
The company has passed ISO9001-2008 international standard quality system certification.
We look forward to contacting you, please give us a chance. I hope we can trust each other for
mutual benefit and win-win results.
FAQ
Q: How Can I Find The Suitable Model?
A: Please Provide Flow Rate, Solids Content And Sludge Type, or directly contact us by the clicking the “contact” icon. We Can Assist You In Model Selection.
Q: Where Is Your Factory Located?
A: Yixing City, We are in the famous city of environmental protection equipment ,professional for Sludge screw press dewatering Machine ,Which Is Very Close To Shanghai With Only Less Than 3 Hours' Driving. Welcome for your visiting.
Q: Do You Provide OEM Service?
A: Yes. We Can Do The Customized Design According To Your Different Request for sludge Dewatering.
Q: How About The Production Capacity Of Your Company?
A: Our Factory Covers Area Over 15,000m² And Produces Machines 2000 Sets Per Year.
Q: How Could We Trust You And Your Company? Is This Your First Time Transaction?
A: A: Our Company Has More Than 20 Years Professional Experience. We Cooperate Over 800 Customers in China And Overseas. We Export Nearly 60 Countries All Over The World. And We Have More Than 60+Patents, CE,ISO 9001,SGS Certificates.
Q: Do You Offer After-Sales Service?
A: Video Technical Support, Online Support,Spare Parts, Field Maintenance Repair Service