Waste acid reduction hydraulic power mixing device

Abstract

The invention belongs to the technical field of harmful waste disposal, and relates to a waste acid reduction hydraulic power mixing device, the main body structure of which comprises a circulating pump, a reflux pipe, a mixing pipe, a baffle, a sloping panel, iron powder, a choke, a feeding hole, a discharge hole and a reaction tank, wherein the iron powder settles in the middle of the reaction tank in a concentrated way by the guidance of an inclined surface of the sloping panel, the vertically arranged choke is arranged over the middle of the reaction tank and is used for enhancing the jetflow suction force, so that the iron powder is sucked into the mixing pipe along with water flow; the pipeline of the reflux pipe runs through to the outside of the reaction tank, extends to the upperend of the side wall of the reaction tank along the outside of the reaction tank, and is connected with the reaction tank by a pipe, so that deliver waste acid at the upper part of the reaction tankis delivered to the lower port of the choke by the circulating pump, iron powder at the bottom of the reaction tank is driven to flow to the upper port of the mixing pipe by the flow of the waste acid, and the iron powder and the waste acid are sufficiently mixed and react in the ascending process in the mixing pipe; the mainbody structure is simple, the design concept is smart, the use is safe and convenient, and application is environmentally friendly, and the market prospect is wide.

Description

Technical field: [0001] The invention belongs to the technical field of hazardous waste treatment, and specifically relates to a waste acid reduction hydraulic mixing device, which uses a circulating pump to make the waste acid in the reaction pool form a flow cycle, and drives the iron powder at the bottom of the pool to flow to fully contact with the waste acid and carry out reduction reaction. Background technique: [0002] With the continuous advancement of the industrialization process, more and more waste acids are produced in the chemical industry. These waste acids are produced in the processes of nitration, esterification, sulfonation, alkylation, catalysis and gas drying of organic matter, or in the process of In the process of titanium dioxide production, iron and steel pickling and gas drying, these waste acids contain heavy metal pollutants at a certain concentration. In the heavy metal purification process of waste acid, iron powder reduction method is usually ...

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Problems solved by technology

In actual engineering, the full mixing and contact of iron powder and waste acid determines the efficiency of redox reaction and the utilization rate of iron powder. However, iron powder has a large proportion and is easy to deposit at the bottom corners, so it is difficult to stir and mix fully. Based on the above The reason is that in the prior art, the reduction of waste acid by iron powder still has the defects of low reaction efficiency, long reaction time, and large consumption of iron powder, resulting in the high cost of waste acid treatment.

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