Dredging technical support

Dredging technical support

◆ Technical specifications

Dredging sand per hour can deal with about 80 cubic meters of raw material, net sand can be according to the quality of the sand 30-80 cubic meters per hour, underwater excavation depth: large dredging sand 13 meters, general dredging sand 4 -8 meters, equipped with changwood 1100, 1110, fuel consumption 2.5kg/ hour, 2 staff. Only 100 yuan per day including workers' wages. This product has a separation screen divided into single, double two kinds, sand stones, mud, weeds and other can be separated from the sand, through the conveyor belt to send it out. The conveying part is divided into two kinds: double conveying and single conveying. The sand can be separated from the two sides of the impurity. The conveying distance of sand is 10-20 meters, and the conveying distance of impurities is 6-16 meters.

This dredging machinery is roughly divided into hull, main frame, power, deceleration system, underwater excavation part, transmission part, operation part. The total width of the ship is 4.5-5m, the length is 10-20m, the height is 5m, and the height of the sand pile is 2-8m.

Pumping sand: every hour can be extracted from the depths of 13 meters underwater, screening sand 60 cubic meters/hour, the cabin is divided into three bodies, both ends of the floating body, the middle of the sand cabin. Capacity: large pumping junk for 30 cubic meters, general pumping junk for 13 cubic meters. The traveling speed is 15km/ h, and the diesel engine drives the slurry machine.

Sand screen machine: processing water sand 100 cubic meters/hour, two conveyor type and three conveyor type.

◆ Operation and maintenance

After many times of practice and improvement, the machine has a high degree of automation and is easy to learn to operate. Each shift only needs 2 people to operate. The specific steps are as follows:

1. Before starting the machine, check the transmission system and oil of the whole machine, and then start the diesel engine behind the conveyor belt, pull the clutch, start the diesel engine, slowly move the clutch, and adjust the speed to normal. Start the diesel engine before the zipper bucket.

2. After starting of two diesel engines. Adjust the speed to the desired speed. Then release the arm brake. Slowly put it down, such as the sand in the hopper more than 2/3, can stop the lower, to 1/3 of the time to support the arm. When the arm and the water into a 45 degree Angle (that is, about 5 meters), should park the arm. At this time, the amount of sand in the hopper to use traction control, forward to check the amount of sand in the bucket, forward and backward to be flexible, such as in the case of sand collapse mechanical work difficult or pull not to loosen the traction rope, so that the ship back, until digging. If there is a large stone or mud layer under the water, the ship will have violent vibration phenomenon. At this time, the dredging arm should be lifted immediately and the obstacles should be avoided.

3, work should pay attention to the following points:

New machinery or overhaul should be run in 24 hours after normal operation.

(1) According to the geographical situation forward and backward and lift the arm, the action should be flexible, such as large stones, mud and so on in the hopper must be cleaned. (2) To often check the chain screws, pins and transmission system fixed fasteners must be firm.

4. When stopping the machine, the sand in the hopper should be less than 1/2, and the big arm should be slowly lifted until the four corners of the underwater wheel come out of the water. There is no sand in the hopper, and then stop the front diesel engine, and then stop the diesel engine.

5, in case of strong wind (level 5 or above) should temporarily shut down, in order to avoid failure, maintenance or replacement of parts should stop the work, in order to avoid personal injury accidents.

6, maintenance and maintenance: during the use of screws should often check the parts and often add lubricating oil and maintenance, especially hopper screws and chain pins, water four Angle wheel and 500 reducer to the joint plate and other parts of the bolt must be fastened well. Underwater four Angle wheel, etc., with the place to often add butter, lubricating oil, flood season or shutdown, the ship should be tied to a firm place, prevent the ship will be washed away or cause undue loss.

To ensure personal safety, the following points should be noted:

1, under 18 years old and over 50 years old shall not operate or repair this machine.

2. It is strictly prohibited to operate this series of machines without professional training or after drinking.

3. When the sand dredging machine is repaired, all the machinery must be stopped before it can be carried out.