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洗沙廠污水處理聚丙烯酰胺
洗沙廠 Sand Washing Plant 聚丙烯酰胺 在洗沙廠中的應用及技術指標 Application and specification: 洗沙廠的泥漿水是一種水中含有一定量的微細泥顆粒的懸浮液體.泥漿的特性取決于它的成分,和
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洗沙廠
Sand Washing Plant
 
在洗沙廠中的應用及技術指標
Application and specification:
聚丙烯酰胺
     洗沙廠的泥漿水是一種水中含有一定量的微細泥顆粒的懸浮液體.泥漿的特性取決于它的成分,和當地的地質條件有關,一般特性是泥漿外觀為土黃色,均勻有粘性,長時間靜止不分層,比重在1.20~1.46之間(其中黃沙比重1.6);含泥量20%~30%,PH值:6~7。這些泥漿來源于建筑打樁、沙場、隧道山洞、礦山尾礦等。  
The slurry water of a sand washing plant is a suspension liquid containing a certain amount of fine mud particles in water. The characteristics of the slurry depend on its composition and local geological conditions. The general characteristics of the slurry are that the appearance of the slurry is yellowish, uniform and viscous, and the slurry is stationary for a long time without stratification, and its specific gravity is between 1.20 and 1.46 (of which, the specific gravity of yellow sand is 1.6); the slurry content is 20%-30%, and the PH value is between 6 and 7. These muds come from building piling, sand field, tunnel cave, mine tailings and so on.  
     目前砂機制砂的工藝流程為:將河沙或礦石經破碎機械破碎,通過洗砂設備,對沙石沖洗,得到含泥量教少的細沙。這種工藝產生大量的污水,主要污染物為泥沙~~其中泥渣懸浮于水中,較難沉降,直接排放對水體污染嚴重,目前業內采用的沉淀池法占地面積大,處理時間長,沉渣提取不易,槽罐車外運法,費用高,不能從根本上解決問題。
   At present, the technological process of sand machine-made sand is to break river sand or ore by crushing machine, wash sand and stone through sand washing equipment, and get fine sand with less mud content. This process produces a large amount of sewage. The main pollutant is sediment, in which sludge is suspended in water, which is difficult to settle, and directly discharged to the water body. At present, the sediment tank method used in the industry covers a large area, takes a long time to process, is not easy to extract sediment, and the tank truck transportation method is expensive, which can not fundamentally solve the problem.
     而近年來大部分采用該種工藝系統泥漿水收集沉淀池,二沉池,清液池,泥砂分離系統,加藥系統,排水系統,排渣系統。
In recent years, collecting sedimentation tank, secondary sedimentation tank, clear liquid tank, mud and sand separation system, dosing system, drainage system and slag discharge system are mostly used.
     其工作原理為:泥漿水通過管道收集流入沉淀池,通過泥漿脫水機預處理,去除泥漿水中的大部分細沙及部分泥漿,濾液經排水系統進入二沉池。二沉池的泥漿水為懸浮泥漿,與水的比重差很小,須加絮凝劑處理,泥漿水經脫水機處理后,泥砂支除率百分之九十五以上,清液池中的水可直接回到洗砂系統中,真正做到零排放。
Working principle: mud water is collected by pipeline and flowed into sedimentation tank, and pretreated by mud dehydrator to remove most fine sand and part of mud in mud water. The filtrate enters secondary sedimentation tank through drainage system. The slurry water in the secondary clarifier is suspended slurry, which has little difference in proportion to water. Flocculant must be added to treat the slurry water. After the slurry water is treated by a dewaterer, the removal rate of mud and sand is more than 95%. The water in the clarifier can be directly returned to the sand washing system to achieve zero discharge.
 
     經我公司專業人員與其他公司產品對比后得出結論。該系統廢水處理用到我廠生產的專用藥劑比原來節省40%左右的成本。該藥劑的單位處理成本很低,回報率較高。
After comparing the our products with other companies, we draw a conclusion. This system can save about 40% of the cost by using our factory special chemicals for wastewater treatment. The unit cost of treatment is very low and the rate of return is high.
 
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