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Thickener

A thickener and output mechanism technology, applied in chemical instruments and methods, separation methods, settling tanks, etc., can solve problems such as crystal wall, bottom sedimentation, and difficulty in discharging materials, so as to improve the effect, prevent clogging, and prolong the flow the effect of time

Pending Publication Date: 2017-08-25
HEBEI IRON AND STEEL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing thickeners have the following disadvantages: 1) The discharge port at the lower end is often blocked by crystals, resulting in sedimentation at the bottom and difficult discharge; 2) During the natural sedimentation process of suspended particles, there is a phenomenon of crystal wall formation

Method used

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Embodiment 1

[0029] This embodiment discloses a thickener, including a shell 100; a solid-liquid separation mechanism; an output mechanism 300, the output mechanism 300 is located below the first discharge port 250 of the solid-liquid separation mechanism, and the output mechanism 300 includes a screw and a The blades are spirally arranged on the outer periphery of the screw. The first discharge port 250 extends from the driving device 320 to the other end of the output mechanism 300 , that is, the second discharge port 121 . The first discharge port 250 is welded to the feed port 310 of the output mechanism 300 ; the bottom of the casing 100 is also provided with a second discharge port 121 .

[0030] In this embodiment, the casing 100 includes an upper casing 110 and a lower casing 120, the upper casing 110 and the lower casing 120 are connected by welding; the solid-liquid separation mechanism is arranged in the upper casing 110, and the output mechanism 300 is arranged in the lower cas...

Embodiment 2

[0037] This embodiment discloses a thickener used in hydrometallurgical process, which is mainly used for thickening sodium vanadate and sodium chromate crystalline slurry under the condition of high-concentration lye. In this embodiment, on the basis of the above-mentioned embodiments, the shape of the shell 100 of the thickener and the screw in the output mechanism 300 are optimized, specifically including:

[0038] The lower shell 120 extends relative to the upper shell 110 along the direction of the second outlet 121;

[0039]The length of the screw is less than the linear distance between the two ends of the blade, and the screw is arranged at one end close to the driving device 320 and connected with the driving device 320 through a coupling.

[0040] This setting can transport the massive sodium vanadate and sodium chromate crystals over a long distance, and will not stick the thick slurry to the screw when transporting the viscous thick slurry, avoiding the risk of the...

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Abstract

The invention discloses a thickener. The thickener comprises a shell, a solid-liquid separating mechanism and an output mechanism, wherein the output mechanism is positioned below a first discharging hole of the solid-liquid separating mechanism; the output mechanism comprises a screw rod and a blade which is arranged helically along the periphery of the screw rod; the first discharging hole is connected with a feeding hole of the output mechanism; the solid-liquid separating mechanism and the output mechanism are positioned in the shell; the bottom of the shell is further provided with a second discharging hole. By adopting the thickener, solid crystal particles are conveyed to the second discharging hole in a helical way, so that the first discharging hole can be dredged effectively, the problem of material blocking is solved, a crystal is prevented from being piled at the first discharging hole, the phenomenon that other elements are damaged by excessive crystal in a lower barrel is avoided, the crystal is conveyed to the second discharging hole immediately, and the phenomenon of material attachment of the crystal in the lower barrel is avoided.

Description

technical field [0001] The invention relates to the technical field of solid-liquid separation, in particular to a thickener. Background technique [0002] Thickener, also known as thickener and thickener, is an essential equipment for solid-liquid separation pretreatment in large-scale production. It uses the principle of gravity sedimentation to separate solids from low-concentration semi-finished crystal slurry, and the suspension is sent from the central liquid delivery tank. Inflow, the clear liquid is discharged from the periphery through the overflow port. The sediment or slag in the thickener gathers to the center of the bottom of the thickener, and after being concentrated, it is discharged through the discharge port, thereby increasing the consistency of the material. The discharge port of the present thickener is small, and the outflow of crystals is relatively low, and the crystals in the discharge port are transported by a pump. Stirring is not carried out in ...

Claims

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Application Information

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IPC IPC(8): B01D21/02B01D21/24B01D9/02
CPCB01D9/00B01D21/02B01D21/2411B01D21/2461B01D2009/0086
Inventor 王新东高明磊李兰杰杜浩白瑞国王海旭秦学宇
Owner HEBEI IRON AND STEEL