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The specific characteristics of the special feed pump for Yuanrunda SYA filter press:
1、两相流理论设计、结构先进新颖、效率高、抗磨蚀。
1. Two-phase flow theory design, advanced and novel structure, high efficiency and anti-abrasion.
2、双叶轮、后端进料，运行平衡、可靠。
2. Double impeller and back-end feeding, balanced and reliable operation.
3、前期流量大、不注水、不用机械密封、无泄漏。
3. Large flow rate, no water injection, no mechanical seal, no leakage.
4、压滤进料时，不用变频调速，降低电耗
4. When pressing and filtering feed, it is not necessary to adjust speed by frequency conversion to reduce power consumption.
SYA型压滤机专用入料泵是一种性能特殊的杂质泵。该泵由后侧面吸入浆液，简单的填料密封无泄露，更重要的是其流量、扬程曲线很陡，非常适合一些特殊的工矿。The special feed pump for SYA filter press is a kind of impurity pump with special performance. The pump sucks slurry from the back side. Simple packing seals are leak-free. More importantly, its flow rate and head curve are very steep. It is very suitable for some special industries and mines. SYA型压滤机泵构造为双叶轮加后端侧面进料;反装水轮吸料构成负压，减轻轴封压力，使简略的填料和副叶轮密封可达无走漏。更重要的是流量扬程曲线很陡。这一特色十分合适一些特别的工况，其特别的水力功能刚好符合压滤机由空腔到填充再到滤干：即压滤机滤室内滤饼的逐步构成，进料阻力也随之加大，请求进料泵从起始时的大流量、低扬程自行过渡到晚期的小流量、高扬程。故被业内人士称为“压滤机专用泵”。
SYA filter press pump is constructed with double impellers and side feed at the back end. Reverse water wheel suction constitutes negative pressure, which reduces the pressure of shaft seal, so that the sealing of simple packing and auxiliary impeller can reach no leakage. More importantly, the flow head curve is very steep. This characteristic is very suitable for some special working conditions. Its special hydraulic function just accords with the gradual composition of filter cake in the filter chamber of the filter press from cavity to filling and then to drying. The resistance of the feed increases with it. It requests the feed pump to transit from large flow and low head at the beginning to small flow and high head at the later stage. Therefore, it is called "special pump for filter press" by people in the industry.
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