Exported to USA High Efficiency Grit Removal System
1 sets
USD 5000-200002
Exported to USA  High Efficiency Grit  Removal  System
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Basic Infomation
Place of Origin: China
Brand Name: LI
Certification: ISO9001:2008
Model Number: GR-1830/6100
Payment & Shipping Terms
Packaging Details: Wooden box
Delivery Time: Within 35 days for 20GP
Payment Terms: T/T or western union
Supply Ability: 1000 sets per season
Main Function: STP , ETP, WWTP Grit Removal By Vortex Stirring
Efficiency: Separate Over 85% Of Those Grit Grain DN Over 0.2mm
Feature: No Influence By Water Volume
Incoming And Output Access Channel Angle: No Less Than 270°
HRT: 20-30 S
Hydraulic Surface Loading: 200 M3 Per Hour
Flow Speed: 12-20 RPM
Product Description

Vortex Grit Removal System

LIGR Series Swirling Flow Grit Removal System

Exported to USA  High Efficiency Grit  Removal  System 0

1. Applicant

It Is Mainly Used In The Swirling Grit Settling Pond Of The Urban Sewage Treatment Plant. This Equipment Uses Hydraulic Swirling To Effectively Separate the Mud Grit And Organic Matter. It Is Ideal Grit Removal Equipment.


2. Structure and Working Principle

The Swirling Grit Removal Pool adopts a cone-bottomed round pond with an Impeller Separator Installed in the Pond. After the sewage flows from the pond tangentially, it rotates 270 degree (clockwise as viewed from the top) and the sewage is discharged from the drainage channel by utilizing a certain flow rate of incoming water as power. It will make tangential movement along the inner wall of the circular Grit pool to form a swirling flow. At the same time, the liquid swirling and axial vortices are stirred by the paddles, thereby accelerating the sedimentation of the Grit particles in the sewage and effectively separating the organic matter from the Grit particles.



The smaller the central water flow section is, the faster the water flow speeds is, and the bottom water flow speed is increasing in the center. Move the Grit on the bottom of the pond to the central Grit bucket in a spiral trajectory. Organic matter rises in the center of the pond and the organic matter will be discharged together with the water flow. The bottom settling Grit is boosted by a lifting device, and then enters into the Grit separator for Grit-water separation, while the sewage returns to the Grid or Screen well.

Exported to USA  High Efficiency Grit  Removal  System 1

3. Model Selection


LI Is Short of Loren Industry

D Means the Diameter of the Grit Sedimentation Pool;

Boosting Way Have Two Type

A means by Air Boosting

P means by Pump Boosting


4. Feature

1. The Grit Removal Effect Is Little Affected By Changes In Water Volume.

2. With Compact Structure,

3. Easy Operation and Maintenance

4. Long Service Life:

5. Two Optional Boosting Way: Air Lift Effect Is Relatively Good; While Pump Lift Cost Is Relatively Low;

6. Particle Removal Rate Above 0.2mm is Greater Than 85%;

7. Flow Below or Over 1080m / h, the Grit Sedimentation Pool body cans Adopts Steel and RCC Structure Respectively.

8. The System Uses PLC to Automatically Control the Grit Washing and Grit Discharging Cycle to Make Sure Its Safe and Reliable Operation

9. It Can Be Run Both Locally And Remotely As Per Requirement.


5. Parameter Data Sheet


Model GR1830 GR2130 GR2430 GR3050 GR3650 GR4870 GR5480 GR5800 GR6100
Pool DN (MM) 1830 2130 2430 3050 3650 4870 5480 5800 6100
Capacity (M3/H) 180 360 720 1080 1980 3170 4750 6300 7200
Impeller Separator DN 1000 mm 1500 mm
Speed 12-20 RPM 12-20 RPM
Motor 0.75 KW 1.5 KW




1.43 1.79 1.75 1.75 2.03 1.98 1.98 2.01 2.01



34.3 34.3 39.2 39.2 44.1 53.9 53.9 58.8 58.8



1.5 2.2 3.0 4.0



25 30 40






2.2 3.0 4.0
Mounting Dimension Width (mm) 1400 1400 1550 1550 1700 2200 2200 2500 2500
Height (mm) 300 300 400 450 580 600 630 700 750
Length (mm) 1100 1100 1150 1350 1450 1850 1850 1960 1950
Working Bridge Load 30 KN
Working Torque 600 N.M. 850 N.M. 1190 N.M.
Exported to USA  High Efficiency Grit  Removal  System 2


  1. Hydraulic Surface Load: 200M3/M2H
  2. Hydraulic Retaining Time ( HRT) :20-30 Second
  3. Feeding Speed V: 0.15-0.90m/s under design Ratio (40-100%)
  4. Inlet and Outlet Channel clip Angle no less than 270 degreeExported to USA  High Efficiency Grit  Removal  System 3
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