Waste Handling Cranes

(Waste Handling Cranes)

INTRODUCTION

Grab overhead crane for waste handling is a key equipment in waste processing facilities for refuse-derived fuels and cogeneration plants. The waste disposal crane is installed over the garbage pit for garbage charging, transport, mixing and weighing.

It can be manual control, semi-automatic control and full-automatic control, carrying out automatic grabbing, automatic repeat feeding, automatic repeat dumping, and automatic parking. The three modes can be switched freely and manual control always has priority function in any automatic mode. Our waste handling cranes have been widely used in waste incineration plants with a daily processing capacity from 600 T/D to 4800 T/D.

Advanced integrated PLC control system

1. Each Garbage Crane is equipped with an independent PLC to control the crane individually.

2. All movements of the crane including moving, loading, and mixing, are controlled in operation room.

3. The electrical control adopts the system of "PLC + Touch Screen + VFD regulation" to realize the comprehensive monitoring, control and high-precision speed regulating functions of the crane.

4. Each mechanism of the crane adopts digital frequency conversion speed regulation device, and the whole crane adopts PLC control, which can realize manual/semi-automatic/ fully automatic operation.

5. It has the functions of real-time dynamic measurement of garbage, crane fault alarm and remote fault diagnosis.

Detailed Photos

1. Three Model Operation: manual control, semi-automatic control and full-automatic control.

The three modes can be switched freely and manual control always has priority function in any automatic mode, it is means that as long as the operator touches the operating handle of the linkage platform at any time, the automatic control mode will immediately stop and switch to the manual model.

Manual model. Operator control the crane with the linkage console.

Semi-Automatic model. The grab operation is manual control, and the auto controlled part includes the moving to charging port, weighing and charging.

Fully-Automatic model. Once the crane receiving the charging signal from the charge port, the crane starts to do every move automatically, moving to the garbage, lower the grab, grabbing the waste, lifting the waste, moving to the charging port, weighing, charging, and returning the position. It will repeat the same motion automatically.

2. Anti-sway technology. Minimize the amplitude of crane load swing.

3. High-precision positioning technology. Through real-time monitoring and feedback of the operating positions of crane, trolley and grabs, the accurate three-dimensional position of the grabs can be obtained, together with the frequency conversion controller and the swing function, as well as the added fixed-point function to each mechanism, which ensures the positioning accuracy .

4. Real-time dynamic measurement and judgment technology. Ensuring the crane to automatically judge the optimal garbage pickup location.

Specification

Capacity (t/d)	800-1,000	1,000-2,000	1,200-1,500
Lifting Weight (t)	8	10	12.5
Grab Volume (m3)	5	6.3	8
Span (m)	19.5-31.5	19.5-31.5	19.5-31.5
Lifting Height (m)	34	36	36
Working Level	A8	A8	A8
Lifting Speed (m/min)	4.5-45	4.5-45	5-50
Lower Speed (m/min)	6-60	6-60	7-65
Trolley Traveling (m/min)	4.5-45	4.85-48.5	5-50
Crane Traveling (m/min)	4.8-48	6.5-65	7-70
Rail	43kg/m	QU70	QU70