Equipment for achieving medium and low temperature hydrogen reduction on chromium slag and muck mixtures and reduction detoxication method of equipment
A technology for mixture and chrome slag, which is applied in the field of chrome slag mixture pollution remediation, can solve the problems of low treatment efficiency, complicated treatment steps of chrome slag mixture, poor reduction effect and the like
Inactive Publication Date: 2018-11-13
BEIJING GEOENVIRON ENG & TECH
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Problems solved by technology
[0006] The purpose of the present invention is to provide a medium-low temperature hydrogen reduction equipment for chromium slag and slag-soil mixture to solve the problems existing in the prior art. Pollution, complex treatment process, low work efficiency technical problems
[0007] The present invention also provides a reduction and detoxification method to solve the technical problems of complex processing steps and low processing efficiency of the chromium slag mixture in the prior art
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[0046] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0047]In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientatio...
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The invention provides equipment for achieving medium and low temperature hydrogen reduction on chromium slag and muck mixtures and a reduction detoxication method of the equipment, and relates to thetechnical field of chromium slag mixture pollution repairing. The equipment for achieving medium and low temperature hydrogen reduction on the chromium slag and muck mixtures comprises a material hopper, a first conveying belt, a chromium slag mixture treatment device, a dust removal device, a second conveying belt and a spraying device. The material hopper is connected with the first conveying belt, and the dust removal device is connected to a discharging opening of the first conveying belt. The first conveying belt is connected with the chromium slag mixture treatment device. Hydrogen andnitrogen are introduced into the chromium slag mixture treatment device, and the heating temperature ranges from 85 DEG C to 90 DEG C. The chromium slag mixture treatment device is connected with thesecond conveying belt. The problems that the chromium slag mixture treatment device is complex in treatment process and poor in reduction effect, and secondary pollution is generated are solved. Hydrogen and nitrogen are introduced into the chromium slag mixture treatment device, medium and low temperature heating is adopted, and the reduction effect of the chromium slag and muck mixtures is good.
Description
technical field [0001] The invention relates to the technical field of chromium slag mixture pollution restoration, in particular to a medium-low temperature hydrogen reduction chromium slag and slag mixture equipment and a reduction and detoxification method thereof. Background technique [0002] The chromium salt industry is an important basic raw material industry and occupies an important position in the national economy. Chromium slag is usually stored by stacking in the open air. Due to the open-air stacking of chromium slag, the chromium slag is soaked by rain and snow, and the hexavalent chromium contained in it is dissolved, seeps into groundwater or enters rivers and lakes, pollutes the environment, and also causes Various forms endanger the health of humans and animals. [0003] Cr and VI in chromium slag have strong oxidizing properties and strong alkalinity. Therefore, chromium slag belongs to hazardous waste and is listed in Group HW21 in my country's "Nationa...
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Login to View More IPC IPC(8): A62D3/37A62D101/43
CPCA62D3/37A62D2101/43
Inventor 冯国杰任贝吕正勇宋登慧苗竹倪鑫鑫杨震关鹏伟
Owner BEIJING GEOENVIRON ENG & TECH