The rake-type thickener is widely used in mining, metallurgy, sewage treatment, chemical industry. It has the weakness of large cover and big size. While it has the strengths of large capacity, high concentration and energy-saving. With wide usage, rake-type thickener is mainly composed of thickening tank and rake-type mud scraper. Here is a brief introduction of center transmission thickening scraper.

Such scraper is the main part of the thickener during the discharging operation. It is usually composed of the work accessory bridge, motor and reduction gear transmission, center transmission shaft, wiper arm, a blade, thickening gridlines, underwater bearings and fixed parts. Generally in order to guarantee the normal operation of such scraper by fixing the motor pool in the center of the thickener to drive the gear driving the slewing bearings of outer ring. So the driving bearing can drive the rotation of the rake. With the common cone design setting the scraper in an angle of 8 ° ~ 15 °with the horizon in the bottom of the thickener, the slime is discharged by the cross-shaped scraper goes from outside to inside. The supporting modes of the center transmission thickening scraper includes center transmission with middle hanger and the center transmission with the peripheral hangers. The former one with the scraper hanging on the truss frame and packeted bridge structure, simple installation, is mainly for thickener less than 18m. The latter one supported by the center vertical axis is mainly for thickener bigger than 18m. In order to avoid the damage from overloads, the security alarm device is installed. According to the different overload conditions, this device will lift the rake or cut the safety pin to protect the thickening scraper.

Recently with the development of technology, thickening scraper becomes more and more various. The picture above is hydraulic center transmission thickener made by Xinhai Mining Machinery Company. Continuous working, automatic rake lifter and automatic control system make the operation easier and more flexible.

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  Xinhai Thickeners’ brand: What You Need is What We Can Do

  With the development of science and technology, more and  more equipment manufacturers are beginning to produce thickeners. Although  there are multiple kinds of thickeners’ brands nowadays, Yantai Xinhai Mining  Machinery Co., Ltd has been regarded as outstanding thickeners’ manufacturer.  Xinhai supplies thickeners with various types and complete specifications,  which are mainly divided into peripheral transmission thickeners, center hydraumatic  transmission thickeners, inclined-plate thickeners, deep-cone thickeners,  washing thickeners and high-efficiency thickeners researched and developed  independently by Xinhai. Here we will give you a brief introduction of  high-efficiency deep-cone thickeners.

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  Types of Thickeners

  In general, thickener is applied to finish the work of concentrating and tailings dewatering before filtration. It also goes for the chemical industry, sewage treatment industry, and concentration and purification of solids. The thickener is mainly composed of two parts including thickening tank and rake-type mud scraper, and the tank is used to store the slurry while the scraper is used to deal with the settling materials. Thickening equipment developed lately in China. The first thickener was born in Shenyang Mining Machinery CO., LTD, which made in accordance with Soviet-style thickener. With about a decade of exploration, a series of thickening products are produced in the mid-1960s., which met the needs of the middle and small scale dressing plants in domestic basically. By the 1970s, thickening equipment was in the trend of systematization and standardization, and the classification became more complicated. As the policy of reform and opening up in the 1980s, lots of new technology and advanced equipment were introduced into China, which promoted the rapid development of the thickening in China. Then various specifications and models of thickeners were produced, and the technology has become increasingly advanced, such as the large-scale thickener with φ100m,the automatic rake-type peripheral transmission thickener, high-efficiency thickener, deep-cone thickener and so on. These thickeners are all the representatives of Xinhai, they have the superior quality and competitive price, and they can meet the customers needs.