Jul 25

In practice of solids control industry, mostly used shaker types are single deck shakers. But as the development of the allocations, there are fewer desander and desilters to be used, while more and more shakers are being chosen as replacement of desander and desilters by using finer screen meshes. A double deck shaker or a set of double deck shakers could provide both a large treating capacity and a good separating result.

GN Double Deck Shaker

GN double deck shaker

GNZS706F series double deck shakers are widely used in such conditions. It has 2 layers of shaker deck, the upper deck is kind of scalping deck, with 2 pcs of shaker screens, each with dimension of 750mm by 900mm, which is also the shaker screen size of a mini shaker GN Solids Control always makes. The lower deck is same as the most popular model GNZS703 series shakers, using screens with size 700mm by 1250mm, providing a total screen area as 1.35m2 of upper deck while 2.63m2 of lower deck. The upper deck uses coarse screens as the first step of separation, while the second deck uses finer screens to separate out the smaller cuttings. GN could locate them as double-shaker set or tri-shaker set sharing one mud distributor to serve for different treating capacities. Both smaller and bigger screens are made by GN Solids Control, with composite material frame for a larger conductance, longer service life and a safer usage.
By using 2 sets of high G force vibrating motors each of 1.94kw, the double deck shaker has a vibration G force up to 8.0G, and the stainless steel made shaker deck design well endured the high vibration with strong structure.
Besides double deck shaker GNZS706, GN Solids Control has a complete series of shale shakers, including the 2, 3 or 4 screens shakers like GNZS752, GNZS703 and GNZS594. For the latter 2 models, GN also has high-G drying shaker available with hopper feeding and larger G force. Except for the oil and gas solids control, GN shakers are also widely used for HDD, TBM, pipe jacking and other drilling works.

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