Directly supplied by the river water purification device manufacturer

Process flowchart

Medication disinfection

↓ ↓

Raw water → primary lift pump → pipeline mixer → reaction sedimentation → filtration → clean water tank → water consumption point

↓ ↑

Automatic sludge discharge and backwashing

4) Main equipment technical specifications

4.1 Overview

River water purification deviceIt includes seven main units: water distribution, reaction, precipitation, filtration, water collection, mud collection, and automatic backwashing. The main casing of the equipment is made of carbon steel, and special coatings are used for anti-corrosion treatment on the inside and outside,

Main performance parameters:

Processing water volume: 50m3/h

Applicable raw water turbidity: ≤ 2000mg/l

Water temperature: normal temperature

Turbidity of purified water outlet: ≤ 1mg/l (SS)

Surface load design for sedimentation zone: 7-8m3/m2 · h

Filter flushing intensity: 14-16l/m2 · s

Filter zone design filtration rate: 8-10m/h

Rinse duration: T=4-6 minutes

Inlet pressure: ≥ 0.07MPa

Equipment dimensions: 4500 × 3500 × 4350mm

Quantity: 1 set

4.2 Equipment Purification Process Flow Chart

Raw water is pumped up (supplied by Party A)

4.3 Process Requirements

The raw water enters the static mixer, and the water treatment agent coagulant and coagulant aid are prepared by the dosing device in the dosing room and sent to the pipeline mixer by the metering pump. The mixer mixes evenly through its own structure's shearing and stirring effects, and then enters the water purification device. The raw water is thenRiver water purification deviceAfter purification, it flows into the clean water tank. After disinfection with a chlorine dioxide generator, it is sent to each water unit.

Equipment sludge discharge and backwashing sewage: Automatic discharge is required, and the discharged mud and filtered backwash water are connected to the sewer or mud pit for drying treatment.

4.4 Grading Table of Filter Layer in the Filter Room of Fully Automatic Water Purification Device

4.5 Equipment and Materials: Q235A

Internal anti-corrosion of equipment: apply epoxy coal tar twice.

External anti-corrosion of equipment: After thoroughly removing rust from the exposed parts, apply 2 coats of anti rust paint and paint the exterior. Install the parts in contact with soil and concrete after anti-corrosion with epoxy asphalt paint.

4.5 Static mixer

4.5.1 Overview

4.5.2 Main Technical Parameters

Material: Q235 anti-corrosion

Specification: DN200/1200mm

Quantity: 2 units

5) Production technical standards

The manufacturing standards for fully automatic water purification devices should comply with national mandatory standards and enterprise design and manufacturing standards:

JBZT4735-1997 "Steel Welded Atmospheric Pressure Vessels"

EBJ98003-8J "Technical Conditions for Painting and Equipment of Water Treatment Equipment"

GB/T4957-1994 "Steel Wire for Fusion Welding"

HGJ34-90 "Design Regulations for External Corrosion Protection of Chemical Equipment and Pipelines"

GB/T8923-88 "Rust removal grades and rust removal grades of steel surfaces before painting"

GB/T13922.3 "Performance Testing and Filtration Equipment for Water Treatment Equipment"

GB50231-1998 Construction and General Specification for Mechanical Equipment Installation Engineering