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Method and device for preparing surface-vitrified carbon adsorption material

A technology of carbon adsorption and surface adhesion, applied in chemical instruments and methods, other chemical processes, etc., to achieve the effects of reducing costs, expanding the scope of application, and facilitating recycling

Active Publication Date: 2015-09-30
INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Method and device for preparing surface-vitrified carbon adsorption material

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Embodiment 1

[0046] Example 1: Preparation of surface ceramic carbon adsorption material

[0047] The system equipment device of present embodiment is described as follows, and each following device all can be purchased directly in the market:

[0048] 1# quantitative feeding device 1, 2# quantitative feeding device 2, 3# quantitative feeding device 8, and 4# quantitative feeding device 9 can be screw scales, star feeders.

[0049] The mixing device 3 is a mill mixer, a ribbon mixer or a twin-shaft mixer;

[0050] The molding device 4 is a double-roll molding machine, a stamping molding machine or an extrusion molding machine;

[0051] 1# conveying device 5 is a belt conveyor or a bucket conveyor;

[0052] The surface adhesion granulation device 6 is a disc granulator or a drum granulator;

[0053] Atomized spray humidifier 7 is a conventional atomized water spray device;

[0054] The mixing fine grinding device 10 is a ball mill;

[0055] 2# conveying device 11 is buried scraper co...

Embodiment 2

[0070] Example 2: Preparation of surface ceramic carbon adsorption material

[0071] The system equipment of this embodiment is the same as that of Embodiment 1.

[0072] Preparation method: process reference figure 1 .

[0073] Preparation of activated carbon core particles: Powder activated carbon by wood physics method and then pass through the quantitative feeding device 1 and 2 respectively, enter the mixing device 3 and the molding device 4 to mix with the binder; the binder is sodium carboxymethyl cellulose (CMC), The weight addition ratio is 20% to make shaped activated carbon core particles with a particle size of 8mm;

[0074] Preparation of pottery material: the inorganic mixture is diatomite, fly ash, sludge from urban sewage plant, and the main chemical components after mixing are controlled within the following weight range: SiO 2 :60%; A1 2 o 3 :17%; Fe 2 o 3 :6%; CaO+MgO:7%; K 2 O+Na 2 O: 6%; C%: 4%,; Particle size control is below 100 orders; The po...

Embodiment 3

[0081] Example 3: Preparation of surface ceramic carbon adsorption material

[0082] The system equipment of this embodiment is the same as that of Embodiment 1.

[0083] Preparation method: process reference figure 1 .

[0084] Preparation of activated carbon core particles: Powder activated carbon by wood physics method and binder through quantitative feeding device 1 and 2 respectively, enter mixing device 3 and molding device 4 to mix; binder is modified phenolic resin, and the weight addition ratio is 29 % made into shaped activated carbon core particles, particle size is 10mm;

[0085] Preparation of pottery materials: the inorganic mixture is bentonite, shale, and river bed mud. After mixing, the main chemical components are controlled within the following weight range: SiO 2 :63%; A1 2 o 3 :16%; Fe 2 o 3 : 4%; CaO+MgO: 8%; K 2 O+Na 2 O: 4%; C%: 5%,; particle size is controlled to be below 100 orders; the pore-adjusting agent is selected as gelatin, and the a...

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Abstract

The invention discloses a method and a device for preparing the surface-vitrified carbon adsorption material. Activated carbon powders are mixed with a binder to be shaped up to prepare activated carbon core granules. After that, an inorganic mixture is mixed with pore-adjusting agent to be ground to prepare the vitrification material. The activated carbon core granules are adopted as mother balls and the ceramic material is uniformly adhered onto the surfaces of the carbon core granules. In this way, carbon granules coated by a ceramic raw-material shell are obtained. The carbon granules are dried, preheated at a medium temperature and sintered at a high temperature. After the introducing of nitrogen, the carbon granules are cooled to the room temperature and then discharged. In this way, surface-vitrified activated carbon granules can be obtained. The surface-vitrified carbon adsorption material has the comprehensive adsorption properties of activated carbon and porous ceramic materials and can absorb polar or non-polar pollutants, especially the combined pollutants of heavy metal pollutants, organic contaminants and the like. Meanwhile, PM 2.5 composite pollutants in the flue gas can be purified. The surface-vitrified carbon adsorption material can be further expanded and applied to the cyclic adsorption and removal of the combined pollutants of heavy metal pollutes, N, P, organics and the like in the waste water. The method is simple and practical in technique, small in investment, low in cost, and good in economic and environmental benefits.

Description

technical field [0001] The invention relates to the field of carbon material preparation, in particular to a method and equipment for preparing a surface ceramic carbon adsorption material. Background technique [0002] In recent years, my country's atmospheric haze pollution has become increasingly serious, and how to control haze has become the focus of people's attention. The culprit of urban haze is PM2.5, which is a pollutant that seriously endangers human health. Its main chemical components include water-soluble inorganic salts, insoluble minerals, and carbon-containing substances, among which carbon-containing substances include water-soluble and non-water-soluble substances. Organic compounds and elemental carbon. Activated carbon materials can absorb and remove pollutants including SO2, nitrogen oxides, soot particles, mercury, dioxins, furans, heavy metals, volatile organic compounds and other trace elements in principle. These pollutants are mainly related to PM...

Claims

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Application Information

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IPC IPC(8): B01J20/20
Inventor 余广炜汪印余铖邢贞娇王兴栋尤甫天
Owner INST OF URBAN ENVIRONMENT CHINESE ACAD OF SCI
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