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China Agricultural Machinery Industry News ] The annual "Three Summers" wheat cross-regional machine-receiving conference war, since the start of May 26, from south to north, rapid and orderly advancement, Hubei, Henan, Anhui, Su, Lu, The main winter wheat producing areas such as 冀 have succeeded.
Up to now, the country has harvested 317 million mu of winter wheat, with a progress of more than 95%, and the nationwide large-scale wheat cross-regional machine harvest has basically ended. The proportion of machine receipts reached 95%, an increase of 2 percentage points year-on-year, a record high. The green production methods such as mechanized wheat harvesting, straw treatment, and corn no-tillage sowing are widely implemented. The mechanization rate of straw returning to fields in Anhui, Shandong, Hebei and other provinces exceeds 85%.
Three summer highlights this year
Zeng Yande, Director of the Planting Department of the Ministry of Agriculture, said that during the summer harvest in summer, all localities are striving to create information "three summers", quality "three summers", green "three summers", peace "three summers", warm heart "three summers" "Three Summers" presents a series of new changes and new highlights such as high efficiency, good quality and green.
The information "three summers" promotes the efficiency of work. All localities pay attention to the use of information technology and mobile APP to publish job information, help the machine to find a job, help farmers find the machine. All local operators have issued an operation service intention of 130 million mu through the National Agricultural Machinery Express Information Platform. During the “Three Summers†period, a total of 620,000 combined harvesters across the country fought in the first line of wheat harvest. The total area of ​​the 14-day daily machine was over 10 million mu, and the single-day machine closed over 20 million mu.
The quality of "three summers" promotes the quality of work. The main target of agricultural machinery cooperatives and large agricultural machinery is to subsidize the purchase of new types of combine harvesters and dryers, and promote brand-based service modes such as land custody and order operations, which further promoted the reduction and improvement of wheat harvest. In response to the problem of wheat lodging caused by abnormal weather in some areas, timely on-site training and mobile phone push technical guidance from the Ministry of Agriculture expert group to help the operator scientifically adjust the use of machinery and reduce the loss rate of the machine.
Green "three summers" to promote resource utilization. All localities adhere to the ecological orientation, and promote the green production methods that wheat harvesting and straw processing, corn precision sowing and layered fertilization are completed simultaneously. At the same time, vigorously promote mechanized picking and bundling technology, promote the diversified utilization of straw, and promote the work of straw burning.
Peaceful "three summers" to promote safe operation of the operator. The Ministry of Agriculture organized the “Safe Production Month†and “Safe Production Publicity and Consultation Day†activities of agricultural machinery throughout the country, and carried out in-depth inspections of agricultural machinery safety production, agricultural machinery accident warning education and emergency drills, and carried out inspections to the countryside and sent to the countryside. Send safety knowledge to the countryside, and at the same time increase the "three summers" safety production supervision and inspection to ensure safe operation.
Warm heart "three summers" to promote good market order. The competent departments of agricultural mechanization of the provinces and the traffic management department issued 300,000 copies of the “cross-regional operation permit†free of charge, and the free of charge for the licensed locomotives. PetroChina and Sinopec Group fully protect diesel reserves and dispatch in the main producing areas, providing preferential service for agricultural machinery operators. The public security department will strengthen traffic guidance and ensure the safe and orderly transfer of machinery across the district. A total of 3,500 inter-regional service stations were set up during the “three summers†period of the agricultural machinery department, providing market information, equipment maintenance, traffic guidance, weather forecasting and other services for past combine harvesters. This year, the transfer of agricultural machinery across regions was in good order, and the price of wheat harvesting operations was stable, and there was no such phenomenon as large-scale interception.
Grab the seeds and grab the seeds, and the time is not wrong. At the same time as the end of the wheat harvest, the local organizations and personnel were quickly involved in the summer planting work. The agricultural situation dispatch of the Ministry of Agriculture shows that as of now, the national summer corn planting area has exceeded 150 million mu, and the corn broadcasting rate in Anhui, Henan, Shandong, Hebei and other provinces has reached more than 95%.
Bucket dredgers can be used in almost every type of soil, from mud to soft rock. When rock has been fragmented by blasting, bucket dredgers are often used, because of their relative lack of sensitivity to variations in the size of the stones. The capacity of a Bucket Dredger is expressed in terms of the content of the buckets. The capacity of a bucket can vary between 50 and 1200 litres. Rock bucket dredgers often have a double set of buckets, the small rock buckets and the large mud buckets. This is in order to make better use of the power of the Dredger and to widen the range of its use.
Photo of our Bucket Dredger:
Important factors
1. The production capacity
The production capacity of a bucket dredger cannot be increased indefinitely. Increasing the production capacity of bucket dredgers implies increasing the bucket capacity. This means that the forces in the bucket chain resulting from the weight of the buckets and links themselves is also greatly increased. This in turn demands an even heavier construction. The production capacity of bucket dredgers therefore seldom rises above 100.000 m³/week. The same goes, to an even greater degree, for the dredging depth, because greater dredging depths demand longer bucket ladders and thus more buckets.
2. The dredging depth
As with other dredgers both the maximum and minimum dredging depths are very important in relation to the use of the dredger. Requirements in relation to these values are closely related to market demands. The difference between the maximum and minimum dredging depth determine the change of the angle of the bucket rim with the horizon.
3. The soil
The influence of the soil to be dredged is seen in the power of the upper tumbler, the strength of the ladder, links and buckets and also in the bucket capacity and shape. If a bucket dredger is equipped with buckets for both soft soil and rock, the capacity of the rock buckets is roughly 60 to 70% of that of the soft soil buckets. Naturally, the length of the links must be the same for both types of bucket. The length of the link must be the same.
Moreover rock buckets are usually cast and soft soil buckets are often welded.
4. The transport of the dredged material
Usually barges that are loaded while moored alongside the dredger are used to transport the dredged material. The height of the main Gantry must be such that the soil falling from the buckets can slide down into the barges moored alongside via the chute.
5. The bucket dredger with a pipeline discharge system
Sometimes the dredged material is carried away directly. In these cases it is collected in a hopper and mixed with the right amount of water to be transported by means of a dredged pump and pipeline. As in the case of a Cutter Suction Dredger, the floating pipeline is attached to the stern of the dredger.
Naturally a Barge with a Dredge Pump can also be moored alongside the dredger for this purpose. This option is increasingly rarely used; indeed, unless the work stipulates the use of a bucket dredger the contractor will employ the much cheaper cutter suction dredger.
The design of Bucket Dredger
When designing bucket dredgers the following design parameters are important:
• Production capacity
• Dredging depth (minimum and maximum)
• Soil type
• The discharge of the dredged material (barges or via pipeline)
As previously mentioned, the bucket dredger can be used in all types of soil from clay to soft rock which has not been blasted and hard rock which has been fragmented by blasting. The type of soil to be dredged has a big influence on the design and the construction of the dredger. Considerable forces arise during the dredging of rock. For all types of soil it is necessary to know the required cutting capacity and the energy that is needed to transport the dredged material via the bucket chain to the upper tumbler.
Bucket Dredger
Bucket Ladder Dredger,Bucket Wheel Dredger,Clamshell Bucket,Bucket Chain Dredger
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