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我厂铸钢用水玻璃砂造型,过去因旧砂无法回用,型砂消耗量很大,1964年两吨铸件耗砂平均1.9吨。我们在自力更生、奋发图强的精神鼓舞下,群众动手,用几个月时间,自制了一套水玻璃旧砂再生设备。该设备均采用废旧料制造,费用低,制作周期短,效果好。含Na2O1．34%的旧砂,经再生后Na2O含量降到0．42%,由于旧砂回用,目前本厂型砂消耗量降为每吨铸件1吨。我厂铸钢用水玻璃砂造型,过去因旧砂无法回用,型砂消耗量很大,1964年两吨铸件耗砂平均1.9吨。我们在自力更生、奋发图强的精神鼓舞下,群众动手,用几个月时间,自制了一套水玻璃旧砂再生设备。该设备均采用废旧料制造,费用低,制作周期短,效果好。含Na2O1．34%的旧砂,经再生后Na2O含量降到0．42%,由于旧砂回用,目前本厂型砂消耗量降为每吨铸件1吨。一、旧砂回用流程二、设备简介1．水玻璃砂块粉碎落砂后,用锤式粉碎机将砂块粉碎,然后用滚筒筛筛过。2．洗砂洗砂设备如图1所示。经粉碎的旧砂用提升斗(1)提起,经双重筛(2)筛过后流入洗砂器(3)洗的砂子在沉砂斗(4)中下沉,然后经螺旋输送器(5)送入沉淀池(6)中。洗砂器(3),外壳尺寸为φ300×1000毫米,内部均布三个螺旋搅拌器(如图2),形成上升螺旋面,将砂子由筒底卷上,进入次一个。洗砂设备生产率为1吨/时,耗?
I plant cast steel water glass sand molding, the past due to the old sand can not be reused, a large sand consumption, two tons of sand consumption in 1964 an average of 1.9 tons of sand consumption. Inspired by the spirit of self-reliance and hard work, the masses started their work and spent a few months creating a set of water glass recycling equipment. The equipment is made of scrap materials, low cost, short production cycle, the effect is good. The Na 2 O 3, 34% of the old sand, after regeneration of Na 2 O content dropped to 0.42%, due to the old sand reuse, the current factory sand consumption reduced to 1 ton per ton of castings. I plant cast steel water glass sand molding, the past due to the old sand can not be reused, a large sand consumption, two tons of sand consumption in 1964 an average of 1.9 tons of sand consumption. Inspired by the spirit of self-reliance and hard work, the masses started their work and spent a few months creating a set of water glass recycling equipment. The equipment is made of scrap materials, low cost, short production cycle, the effect is good. The Na 2 O 3, 34% of the old sand, after regeneration of Na 2 O content dropped to 0.42%, due to the old sand reuse, the current factory sand consumption reduced to 1 ton per ton of castings. First, the old sand reuse process Second, the device profile 1. Water glass grit crushed sand, crushed sand with a hammer mill, and then sieved through a roller screen. 2. Sand washing sand washing equipment shown in Figure 1. The crushed old sand is lifted by a lifting bucket (1), and the sand washed by the sand washing machine (3) screened through a double screen (2) is sunk in a sand settling bucket (4) Into the sedimentation tank (6). Sand washing machine (3), the shell size of φ300 × 1000 mm, internal uniform three spiral mixer (Figure 2), the formation of spiral surface, the sand from the bottom of the roll, into the next one. Sand washing equipment productivity of 1 ton / hour, consumption?