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Apparatus and method for high speed dewatering of slurries

A mud and equipment technology, applied in the improvement field of mud dehydration technology, can solve the problems of unusable, blocked filter screen, low utilization rate of filter screen surface area, etc.

Inactive Publication Date: 2003-09-03
GENESIS FLUID SOLUTIONS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These mudflats cause substances to not be evenly transported to the filter screen, resulting in low utilization of the entire surface area of ​​the filter screen, and even blockage, resulting in extreme cases where the filter screen cannot be used.

Method used

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  • Apparatus and method for high speed dewatering of slurries
  • Apparatus and method for high speed dewatering of slurries
  • Apparatus and method for high speed dewatering of slurries

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Embodiment Construction

[0076] According to the dehydration method and equipment of the present invention, the diffuser, and the equipment for collecting the filter mud cake from the separation filter screen will be further described with reference to specific embodiments and accompanying drawings, it can be understood that this is only illustrated by way of example, and its intent is not intended in any case It is not intended to limit the scope of the invention.

[0077] Such as Figure 8 As most clearly shown in, the high-speed dewatering system and method 10 of the present invention includes a flow meter 12, a mud density meter 14, programmable logic control equipment 16, a mixer 18 and a high-speed dewatering equipment 20.

[0078] Specifically, the system 10 of the present invention communicates with a source 22 of mud to be dewatered, the system 10 includes a vibrator and / or a hydrocyclone 24 for removing coarse and / or heavy debris, and a solid mass Storage or processing unit 26 . A programm...

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Abstract

A system and method for dewatering a continuous stream of slurry at high flow rates demonstrates enhanced efficiency, economy and ease of operation. A stream of slurry is subject to continuous or continual measurement of flow rate and pulp density and the measurements are used to control the rate of addition of a flocculating agent to the slurry. The flocculated slurry is delivered to a dewatering unit where it is passed through a diffuser and evenly delivered to a tracking screen for filtering solids from a liquid filtrate. The pulp density of the filtrate may also be measured and used to control addition of a flocculating agent. The tracking screen is adjusted to achieve an angle of repose suited to the particular composition of the filter cake. The diffuser has a base having a horizontal section aspect ratio of from about 1:1 to about 4:1 and continuously changing vertically into an upper portion having a horizontal section with an aspect ratio of from about 40:1 to about 100:1. The ratio of the horizontal sectional areas at the upper portion with respect to the base is from about 1:1 to about 3:1. The dewatering unit of the invention may be adjustably mounted on a transport means for deployment of the high speed dewatering system and method at any convenient location.

Description

technical field [0001] The present invention relates to the improvement of mud dewatering technology, in particular to the improvement of mud dewatering technology dredged by dredgers. Background technique [0002] Disposal of mud dredged by dredgers is an important issue for dredging contractors. The excavated muddy deposits are suspended in the water in the form of mud. If these slurries were discharged directly into retention ponds or sedimentation ponds, serious recovery problems would arise. Therefore, it is necessary to effectively dewater these slurries so that the solid matter therein can be recovered. The present invention provides a rapid and efficient method of separating water from solids, thereby economically reducing capacity and providing an interesting alternative to sediment recovery, reuse and disposal. [0003] A dredger is an effective dredging device for dredging large amounts of various types of sediment from natural or artificial water systems. The...

Claims

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Application Information

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IPC IPC(8): B01D29/00B01D21/00B01D21/30B01D37/03C02F1/52C02F11/12C02F11/14
CPCB01D21/01C02F1/52B01D2201/265C02F11/14C02F2209/40C02F2209/10B01D21/30C02F11/123B01D37/03B01D21/32B01D21/34B01D37/04B01D37/043C02F11/147
Inventor 迈克尔·凯文·霍奇思拉里·D·坎贝尔
Owner GENESIS FLUID SOLUTIONS
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