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    抽沙船如何適應河道的環境

          抽沙船是一種依靠抽沙泵對河沙進行抽取的水上采沙設備,在這之前先依靠機械部分對河床進行破壞,使得河床底層的泥沙更好的同水流混合,抽沙泵將泥沙通過輸沙管道輸送到抽沙船上或者指定地點進行篩分和儲運工作。抽沙船作為一種高效的抽沙設備,其自身的功能決定其抽沙強度與抽沙效率。
          當然除去抽沙船的本身構造和性能外,抽沙船的能否發揮自身的優勢還與其所處的環境有關。首先是氣候問題,我們都知道國內的結冰地域一般是以秦嶺淮河線為基準的。北方的結冰期就不利于抽沙船的采沙工作。因此除做好抽沙船的防凍工作外,還要將抽沙船內部的冷卻水放凈,防止因結冰而導致凍裂。而南方雖然處于無冰期或者冰期過渡帶,但是在冬季氣溫地下,也需要做好抽沙船的防凍工作。
          其次因為河道中沙石含量的配比不同,石子比較少,且直徑較小的河道更容易展現抽沙船的生產性能。而對于含沙量在50%以下的河道就不建議使用抽沙船進行抽取,最好使用鏈斗式挖沙船配備一般篩沙網就可以將石子篩除。而如果石子很多,直徑又比較大的河道,挖沙船就需要配備滾筒篩對河沙中的石子進行篩分。經過篩分后的石子一般直接流入另一側的河道,或者如果有經濟價值也可由傳送帶輸送到岸上進行破碎機破碎制成機制沙,可以實現資源的有效利用。

    抽沙船
          如果河道中河沙中的磁鐵屑含量比較高,為了實現資源的有效利用,在抽沙船的洗沙過程中添加磁選設備進行選鐵工作。選鐵工作一是將河沙中的磁鐵屑實現100%的凈化率,可以避免河沙中的磁鐵屑對建筑物的腐蝕作用,同時也提高了挖沙的經濟收益。抽沙船的磁選系統主要是磁選機和水洗精選系統,抽沙船上安裝的磁選機的磁表強度一般要達到0.38-0.45特斯拉。抽沙船的水洗的作用是提高毛鐵粉的品位,一般可在30-45之間對其進行自由調節。

       The pumping vessel is a kind of water-collecting sand equipment which relies on pumping sand pump to extract the river sand. Before this, relying on the mechanical part of the river bed damage, making the sediment at the bottom of the riverbed better mixing with water, pumping sand through the sediment transport pipeline to the pumping sand or designated locations for screening and storage and transportation work. As an efficient sand pumping equipment, the sand pumping vessel has its own function to determine its pumping strength and sand pumping efficiency.

    抽沙船

       Of course, removal of the sand pumping vessel's own structure and performance, pumping sand can play its own advantages and its environment. First of all, climate problem, we all know that the domestic freezing region is generally based on the Qinling Huaihe River line. The freezing period in the north is unfavorable to the sand extraction of the barge. Therefore, in addition to doing well pumping sand antifreeze work, the drainage of the internal cooling water of the sand, to prevent freezing caused by frost cracking. While the south is in no glacial or glacial transitional zone, but in the winter temperatures, also need to do well pumping sand antifreeze work.
       Secondly, because of the different proportion of sandstone in the river, the gravel is less, and the smaller diameter river is easier to show the production performance of sand pumping. For the sediment containing the river below 50%, it is not recommended to use pumping sand, preferably using the chain bucket dredging sand with a general sieve can be the gravel sieve. And if a lot of stones, diameter and relatively large rivers, dredging vessels need to be equipped with drum sieve to the sand in the gravel screening. After screening the stones are generally directly flowing to the other side of the river, or if there is economic value can be transported by conveyor belts to shore crushing crusher made mechanism sand, can realize the effective utilization of resources.
       If the content of the magnet in the river sediment is higher, in order to realize the effective utilization of the resources, the magnetic separator is added to the sand-washing process of the pumping vessel. The iron work one is to achieve 100% purification rate of the magnet debris in the river sand, and can avoid the corrosion of the magnet chips in the river sand and increase the economic benefit of digging sand. The magnetic separation system of the pumping sand is mainly magnetic separator and washing select System, the magnetic field of the magnetic separator installed on the pumping vessel is generally to reach 0.38-0.45 Tesla. The water washing effect of the pumping sand is to improve the grade of the wool iron powder, which can be adjusted freely between 30-45.

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