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Cyclone bubble column three-phase reactor

A technology of swirl bubble tower and reactor, which is applied in the field of swirl bubble tower three-phase reactor, to achieve the effect of accelerating movement, ensuring separation effect and increasing the probability of collision

Active Publication Date: 2019-04-26
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] 3) There is a structured packing inside, not suitable for reactions containing solids

Method used

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  • Cyclone bubble column three-phase reactor
  • Cyclone bubble column three-phase reactor
  • Cyclone bubble column three-phase reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Continuous water inlet is adopted, and the flow rate of manganese-containing wastewater is 1m 3 / h(5.5g / L Mn), the flow rate of adding alkali is 0.15m 3 / h(125g / LNaOH), CO 2 The concentration is 11%, the manganese-containing wastewater, lye, CO 2 Add from the upper end of the swirl bubble tower three-phase reaction device, swirl upward through the bottom, adjust the pH through the pH control system to maintain it above 6.85, and the manganese carbonate content of the precipitate obtained after precipitation and drying of the swirl three-phase reaction device (calculated as Mn) is 41.9%, which meets the qualified product requirements of "HGT 4203-2011 Industrial Manganese Carbonate", the concentration of Mn in the effluent is 0.0383g / L, and the recovery rate of manganese is 99.30%.

Embodiment 2

[0048] Continuous water intake is adopted, and the flow rate of manganese-containing wastewater is 1.1m 3 / h(4.8g / L Mn), the flow rate of adding alkali is 0.16m 3 / h(125g / LNaOH), CO 2 The concentration is 12%, the manganese-containing wastewater, lye, CO 2 Add from the upper end of the swirl bubble tower three-phase reaction device, swirl upward through the bottom, adjust the pH to maintain above 6.80 through the pH control system, and the manganese carbonate content of the precipitate obtained after precipitation and drying of the swirl three-phase reaction device (calculated as Mn) is 42.2%, which meets the requirements of qualified products in "HGT 4203-2011 Industrial Manganese Carbonate", the concentration of Mn in the effluent is 0.0152g / L, and the recovery rate of manganese is 99.68%.

Embodiment 3

[0050] Intermittent water intake is adopted, and 2.8m of manganese-containing wastewater is added at one time 3 (5.5g / L Mn), the amount of alkali added is 0.15m 3 (125g / LNaOH), CO 2 The concentration is 11%, the manganese-containing wastewater, lye, CO 2 Add from the upper end of the swirl bubble tower three-phase reaction device, swirl upward through the bottom, adjust the pH to maintain at 6.90 through the pH control system, react for 2 hours, and pass through the precipitation after the reaction of the swirl three-phase reaction device, and the precipitate obtained after drying The content of manganese carbonate (calculated as Mn) in the product is 42.9%, which meets the requirements of the first-class product in "HGT 4203-2011 Industrial Manganese Carbonate". The concentration of Mn in the effluent is 0.0131g / L, and the recovery rate of manganese is 99.76%.

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Abstract

The invention relates to a three-phase reactor of a rotary flow bubble tower. The three-phase reactor comprises a reactor barrel body, an air blower, an outer circulation device and an ejector, wherein an air outlet pipe is arranged at the top of the reactor barrel body; an air inlet pipe, a liquid inlet pipe, a liquid outlet pipe, a manhole and a mud discharging pipe are arranged on a side wall of the reactor barrel body; a foam removing device, a central circulation pipe, a reflection flow guide plate and a mud bucket are arranged in the reactor barrel body in sequence from top to bottom; a spiral flow guide blade is arranged between an inner wall of the reactor barrel body and the central circulation pipe; a micro-hole air distribution device is arranged between the bottom of the central circulation pipe and the reflection flow guide plate; the bottom of the mud bucket is communicated with the mud discharging pipe; the liquid inlet pipe stretches into the central circulation pipe; the air blower is communicated with the micro-hole air distribution device through the air inlet pipe; the air blower is communicated with the liquid inlet pipe through the ejector; the outer circulation device is communicated with the ejector; the liquid outlet pipe is communicated with the outer circulation device. The three-phase reactor of the rotary flow bubble tower has the advantages that the utilization rate of carbon dioxide can be improved and large-grain manganese carbonate can be effectively precipitated and removed.

Description

technical field [0001] The invention belongs to the technical field of environmental protection equipment / waste water treatment / recycling, and relates to a swirl bubble tower three-phase reactor, in particular to a swirl bubble tower three-phase reaction for recovering manganese from manganese slag filtrate by using carbon dioxide device. Background technique [0002] The electrolytic manganese waste slag mainly comes from the manganese slag and tailings waste rock produced by solid-liquid separation after acid leaching of ores. Other waste residues include anode slime, sulfide slag, and chromium-containing sludge generated during the treatment of chromium-containing wastewater. For every ton of electrolytic manganese produced, 6-10 tons of manganese slag are discharged. The stock of manganese slag in my country has reached more than 50 million tons, and at the same time, more than 10 million tons of manganese slag are added every year. Manganese slag is an industrial wast...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B7/00C22B47/00
CPCC22B7/00C22B47/00Y02P10/20
Inventor 杜冬云高甲山叶恒朋梅颖李金林李维健李佳陈南雄刘春明杨勇薛余化
Owner SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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