Precipitation tank for precise solid-liquid separation of 1,3-cyclohexanedione

Abstract

The invention discloses a depositing tank for accurate solid and liquid separation of 1,3-cyclohexanedione. The depositing tank comprises a tank body. A manhole is formed in the middle of the top of the tank body. A feeding port and an exhaust port are formed in the left side and the right side of the manhole. A discharging port is formed in the middle of the bottom of the tank body. A first semicircular arc through hole is formed in the discharging port. A valve is arranged below the first semicircular arc through hole. Clean liquid guiding pipes are arranged in the discharging port. The clean liquid guiding pipes comprise the inner pipe and the outer pipe. The inner pipe is sleeved with the outer pipe and is in interference fit with the outer pipe. A long-bar-shaped through hole is formed in the side wall of the outer pipe, and a third semicircular arc through hole perpendicular to the long-bar-shaped through hole is formed below the long-bar-shaped through hole. According to the depositing tank for accurate solid and liquid separation of 1,3-cyclohexanedione, the inner pipe and the outer pipe are used as the clean liquid guiding pipes, clean liquid is discharged out of the tank from top to bottom through rotation, an extremely small amount of clean liquid and sediments are mixed, secondary processing is not needed, waste of raw materials is reduced, and the production efficiency is obviously improved.

Description

technical field [0001] The invention relates to a precipitation tank, in particular to a precipitation tank for precise solid-liquid separation of 1,3-cyclohexanedione. Background technique [0002] In industrial production, sedimentation tanks are often used to separate liquid and sediment. For example, in the production of 1,3 cyclohexanedione, it is used to separate the feed liquid and the metal catalyst. The sediment is distributed in the bottom area of ​​the tank after precipitation due to its large specific gravity. . The general-purpose sedimentation tank is to open the bottom valve and release the sediment first, and then switch to discharge the supernatant after the sediment is drained. The defect of this method is: there is no obvious boundary between the conversion of the sediment and the supernatant, and the sediment located vertically above the discharge valve port flows out first under the action of gravity and water flow, and then the supernatant liquid in th...

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Problems solved by technology

[0003] According to the problems existing in the prior art, the present invention proposes a settling tank for precise solid-liquid separation of 1,3-cyclohexanedione, which solves the problem of mixing part of the clear liquid with the sediment in the existing feed-liquid settling tank, which requires secondary Disposal or fluid waste issues

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