Filtrate distribution device of multi-disc thickener
A distribution device and concentrator technology, applied in paper recycling, pulp dewatering, recycling technology and other directions, can solve the problems of affecting the filtrate distribution effect, unreasonable filtrate distribution structure, affecting the operation efficiency of the multi-disc thickener, etc. The effect of distribution and treatment, the effect of improving the smoothness of water flow
Active Publication Date: 2020-08-28
ZHENGZHOU LEIZHAN TECH PAPER MACHINERY
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Problems solved by technology
[0005] However, the traditional multi-disc concentrator including the above-mentioned technical scheme has an unreasonable design of the filtrate distribution structure, which affects the filtrate distribution effect, thereby affecting the operating efficiency of the multi-disc concentrator
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[0041] The specific implementation manners of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0042] Such as Figure 1 to Figure 12 As shown, this embodiment discloses a filtrate distribution device for a multi-disk concentrator, including a central shaft 7, on which discs 2 are arranged axially, and the discs 2 are formed by combining fan-shaped plates, showing Disc shape. A filter screen is arranged on the fan-shaped plate, and a cavity is formed in the fan-shaped plate. The filtrate distribution valve 10 is arranged on one side of the axial extension end of the central shaft, and is installed outside the slurry tank 100 of the multi-disk thickener.
[0043] The central shaft 7 is a regular polygonal central shaft, including a tapered mandrel 70, and a rotating shaft 73 fixedly pierced by the central axis of the tapered mandrel 70. The sealing plates 72 at both ends are welded. The rotating shaft 73 passes through ...
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The invention discloses a filtrate distribution device of a multi-disc thickener. The device includes a central shaft, a filtrate flow channel is uniformly arranged on the outer circumference of the central shaft, a filtrate distribution valve is arranged on one side of the shaft extension end of the central shaft and is mounted outside a slurry tank of the multi-disc thickener, the outlet of thefiltrate flow channel is guided to the filtrate distribution valve, the filtrate distribution valve comprises a distribution valve shell, and the side, facing the slurry tank, of the distribution valve shell is open and is fixedly connected with the slurry tank in a sealed mode, so that an inner cavity of the distribution valve shell is communicated with the filtrate flow channel of the center shaft; a distribution piece arranged in the radial direction of the central shaft is arranged in an inner cavity of the distribution valve shell, the radial length of the distribution piece exceeds thatof the length of the filtrate flow channel in the central shaft, and the distribution piece is connected with a distribution piece driving mechanism for driving the distribution piece to rotate alongthe central shaft; the lower part of the distribution valve shell is communicated with a left water leg and a right water leg which are respectively a turbid filtrate water leg and a clear filtrate water leg and are used for respectively receiving turbid filtrate and clear filtrate distributed by the distribution valve; and the distribution piece rotates to adjust the filtrate distribution proportion of the two water legs. The filtrate distribution efficiency of the multi-disc thickener can be improved.
Description
technical field [0001] The invention relates to the technical field of multi-disk thickeners in papermaking equipment, in particular to a filtrate distribution device for multi-disk thickeners. Background technique [0002] The multi-disc thickener is mainly used for thickening and washing the slurry of the pulp line. The slurry flows into the pulp box through the pulp inlet pipe, and then the pulp enters the pulp tank by overflowing. When the central shaft rotates, the fan-shaped plate on the disk (the disk is formed by combining fan-shaped plates and is disc-shaped) is immersed in the slurry under atmospheric pressure, and the slurry is separated by the filter medium, and a vacuum is gradually formed inside the water leg At this time, the slurry layer adsorbed on the surface of the fan-shaped plate is relatively thin, and a large amount of fine fibers and filler solids still exist in the filtered filtrate. The concentration of this part of the filtrate is relatively high, ...
Claims
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IPC IPC(8): D21C9/18
CPCD21C9/18Y02W30/64
Inventor 刘建坡刘建涛任福军
Owner ZHENGZHOU LEIZHAN TECH PAPER MACHINERY