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Carbide-slag slurry preparing device and method

A calcium carbide slag and pulping technology, applied in the directions of mixing methods, chemical instruments and methods, transportation and packaging, etc., can solve the problems of ammonia nitrogen without a simple and effective solution, so as to improve energy utilization and reduce total water discharge. The effect of reducing ammonia nitrogen content

Inactive Publication Date: 2016-06-08
ANHUI JXTB GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The above two technical schemes both provide relevant schemes for carbide slag pulping, but do not provide a simple and effective solution for how to eliminate ammonia nitrogen in the slurry, which needs further research and exploration by those skilled in the art

Method used

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  • Carbide-slag slurry preparing device and method

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Embodiment 1

[0035] combine figure 1 , a calcium carbide slag pulping device in this embodiment includes a feeding device, a pulping stirring device and a water supply device, the feeding device is an auger feeding device or a belt feeding device, and is used to transport calcium carbide slag to the stirring device; In this embodiment, a belt feeding device is selected. Specifically, the belt feeding device includes a feeding mechanism 1 and a hopper 2. The feeding mechanism 1 is mainly composed of a drive motor, a support frame and a feeding belt. There are multiple sets of rollers on the support frame. The feeding belt is tensioned by the rollers, and the entire feeding belt is inclined. Setting, one end of the feeding belt is arranged below the hopper 2, and the other end is suspended above the pulping barrel 4. When feeding, the calcium carbide slag added in the hopper 2 falls on the lower part of the feeding belt, and the carbide slag is sent to the top by the rotation of the feeding...

Embodiment 2

[0042] A calcium carbide slag pulping device of this embodiment has the same basic structure as that of Embodiment 1, the difference being that there are two ring-type aeration pipes 5, and the two ring-type aeration pipes 5 are The inner wall of the slurry barrel 4 is arranged up and down, which further increases the contact area between the slurry and the air.

Embodiment 3

[0044] A calcium carbide slag pulping device of this embodiment has the same basic structure as that of Embodiment 2, except that the diameter of the aeration hole in this embodiment is 12mm, and 20 aeration holes.

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Abstract

The invention discloses a carbide-slag slurry preparing device and method, and belongs to the field of carbide slag processing. The carbide-slag slurry preparing device comprises a feeding device, a slurry-preparing stirring device and a water supplying device. The feeding device is used for delivering carbide slag to the stirring device; the slurry-preparing stirring device comprises a stirring mechanism and a slurry preparing barrel, an annular aerator pipe is installed in the slurry preparing barrel, and compressed air is supplied to the slurry preparing barrel through the annular aerator pipe. The slurry preparing method conducted with the carbide-slag slurry preparing device includes the steps that after the temperature reaches the standard, water is fed into the slurry preparing barrel to be at the specified liquid level, and then the carbide slag is added and stirred in a ventilated mode to prepare carbide slag slurry. According to the carbide-slag slurry preparing device and method, heat energy sources and water resources are recycled according to the influences of temperature, pH and aeration on ammonia nitrogen treatment of materials, the energy use rate is increased, the total water discharging amount is decreased, the total amount of ammonia nitrogen brought by the carbide slag into a neutralization system is decreased, and environment protection investment and environment stress are greatly reduced.

Description

technical field [0001] The invention relates to the technical field of carbide slag treatment, in particular to a carbide slag pulping device and a pulping method thereof. Background technique [0002] Carbide slag is a kind of strongly alkaline waste residue discharged after calcium carbide is used to prepare acetylene. Its main component is calcium hydroxide. Because of its strong alkalinity, it will be discharged into the environment, or the stacking process will be harmful to the environment. Serious pollution will not only cause surface pollution, but also cause groundwater resources to be polluted. Therefore, in order to reduce environmental load and save costs, in response to the call of "using waste to treat waste and turning waste into treasure", calcium carbide Comprehensive utilization of slag to avoid environmental pollution caused by discharge of carbide slag. At present, calcium carbide slag has been widely used in the treatment of chemical acid wastewater. ...

Claims

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Application Information

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IPC IPC(8): B01F13/10B01F15/02B01F3/12
CPCB01F23/511B01F23/53B01F23/565B01F33/822B01F35/2115B01F35/2212B01F35/2218B01F35/71705B01F2101/25
Inventor 张志贤齐周
Owner ANHUI JXTB GRP