我國東部沿海地區(qū)，人口密集，經(jīng)濟(jì)發(fā)展迅速，工程建設(shè)量大。當(dāng)河砂資源出現(xiàn)供不應(yīng)求的情況且沒有其他砂源替代（如內(nèi)陸地區(qū)可以使用山砂或機(jī)制砂等替代）時(shí)，從遠(yuǎn)距離運(yùn)送河沙，大大的提高了工程造價(jià)。參照國外許多國家走過的路，在河沙資源短缺的情況下，人們開始將注意力轉(zhuǎn)向了當(dāng)?shù)厣霸础Ｉ?。因此，沿海地區(qū)開采利用海砂是經(jīng)濟(jì)發(fā)展的客觀需要和歷史發(fā)展的必然，海沙淡化設(shè)備也就應(yīng)運(yùn)而生。

In the eastern coastal areas of China, the population is dense, the economy is developed, and the construction quantity is large. When there is insufficient supply of river sand resources, there is no alternative to other sand sources (such as inland areas can be used to replace the sand or sand, etc.), long-distance transport river sand will greatly improve the cost of the project. And many foreign countries through the same road, sand land in case of shortage of resources, people began to pay attention to the local sand - sand source. Therefore, the exploitation and utilization of sea sand in coastal areas is an inevitable objective needs and historical development of economic development,Sand desalination equipment came into being.

     英國、丹麥、挪威、瑞典、比利時(shí)、加拿大、澳大利亞、新西蘭、日本、韓國、土爾其、印度等國家以及我國的臺(tái)灣地區(qū)在海砂(利用海沙淡化設(shè)備對(duì)海砂進(jìn)行清洗而達(dá)到國家標(biāo)準(zhǔn)規(guī)定的海砂)應(yīng)用于工程建設(shè)方面已有多年的歷史和豐富的應(yīng)用經(jīng)驗(yàn)。尤其是河砂、陸砂資源短缺的日本，在20世紀(jì)40年代就已經(jīng)開始利用海砂配制混凝土，特別是20世紀(jì)80年代到90年代，日本海砂的利用量達(dá)到歷史的高點(diǎn)，海砂占建筑用砂的比例高達(dá)30％左右。

Britain, Denmark, Norway, Sweden, Belgium, Canada, Australia, New Zealand, Japan, South Korea, Turkey, India and other countries and China's Taiwan area in the sand used in construction has a long history and rich application experience. Especially, the river sand sand resources shortage in Japan, in 1940s began the preparation of concrete with sand, especially from 1980s to 90s, the Japan Sea sand reached historic highs, the sand for building sand ratio as high as 30%.

     20世紀(jì)30～40年代，我國局部地區(qū)將海砂用于臨時(shí)建筑。70年代末，個(gè)別沿海城市開始出現(xiàn)使用海砂的建筑結(jié)構(gòu)，但規(guī)模較小。對(duì)海砂的開采利用在近十多年獲得迅速發(fā)展。國內(nèi)較早大規(guī)模使用海砂的是寧波舟山地區(qū)和深圳地區(qū)等。據(jù)相關(guān)人士實(shí)地調(diào)研得知，寧波、舟山地區(qū)當(dāng)時(shí)的建筑用砂90％以上為海砂。

In twentieth Century 30 to 40s, China's local area will be used for temporary building sand. At the end of 70s, the city began to appear some coastal structures using sea sand, but on a smaller scale. The exploitation of sand is developed rapidly in the past more than and 10 years. The earliest large-scale use of sea sand in Ningbo Zhoushan area and Shenzhen area. According to the author in 2007 before and after the investigation, the architecture of Ningbo, Zhoushan area with more than 90% sand sand.

     海砂含泥量低、粒形優(yōu)良、細(xì)度均勻，適合配制混凝土。然而，海砂含有較高的氯鹽、貝殼、輕物質(zhì)等有害物質(zhì)。未經(jīng)凈化處理的海砂容易造成混凝土中的鋼筋過早銹蝕，給建筑工程埋下嚴(yán)重的質(zhì)量隱患,所以，未經(jīng)處理的海沙是豆腐渣工程的根源。國內(nèi)外因?yàn)E用或誤用海砂出現(xiàn)了一批“海砂屋”，造成了重大的經(jīng)濟(jì)損失和惡劣的社會(huì)影響。青州統(tǒng)一重工機(jī)械有限公司是一家專業(yè)研發(fā)生產(chǎn)海沙淡化設(shè)備的機(jī)械設(shè)備廠家。我公司在原有的淡化設(shè)備基礎(chǔ)上研發(fā)生產(chǎn)的新型海沙淡化設(shè)備，淡化效果更好，我公司的海沙淡化設(shè)備可以將海沙中的氯離子含量降低到0.001%以下，遠(yuǎn)遠(yuǎn)高于提出標(biāo)準(zhǔn)的0.06%以下， 且經(jīng)過當(dāng)?shù)氐馁|(zhì)檢。
The sand mud content low, grain shape, good fineness, suitable for the preparation of concrete. However, the sand contains high chlorine salt, shells, light material and other harmful substances. Without the purification of sea sand can cause premature corrosion of reinforced concrete, construction project buried serious quality problems. At home and abroad due to abuse or misuse owing to the emergence of a number of "sea sand house", resulting in significant economic losses and bad social impact.So, the untreated sand is the root of bean curd dregs.Qingzhou Heavy Machinery Co. Ltd is a professional manufacturer of machinery and equipment research and production of new sand desalination equipment R & D and production of our company based on the original desalination equipment on desalination desalination equipment better our desalination equipment can be chlorine ion content in the sand of the sea below 0.001% is much higher than the proposed standard below 0.06%. And after the local quality inspection.