Preparation device and preparation method of modified biomass charcoal for soil treatment

A biochar and preparation device technology, applied in the field of soil treatment, can solve the problems of long time consumption, low adsorption stability efficiency, unsatisfactory effect, etc., and achieve the effect of strong chemical stability

Pending Publication Date: 2018-10-23
HEFEI DEBO BIOENERGY SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there are many methods to reduce or repair the heavy metal content in low soil, but it takes a long time and the effect is not ideal
There have been relevant research reports at home and abroad on the use of biomass activated carbon to adsorb and fix heavy metals in soil, but the effect of directly using biochar to reduce heavy metals in soil is not ideal
Biochar itself contains impurities and its adsorption stability is low. It is urgent to find an effective biochar modification measure to further enhance its heavy metal adsorption capacity.

Method used

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  • Preparation device and preparation method of modified biomass charcoal for soil treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Such as figure 1 As shown, a preparation device for modified biochar for soil treatment, including a pulverizer 1, a granulator 2, a biomass bin 3, a conveyor 4, a hoist 5, a carbonization furnace 6, a cooler 7, Modification reactor 8, agitator 9, biochar storage tank 10, filter 12 and dryer 13; the top of carbonization furnace 6 is provided with biomass inlet 61, carbonization gas outlet 62 and temperature measuring hole 63, carbonization furnace 6 The upper part of the side wall is provided with a flue gas outlet 64, and the lower part of the side wall of the carbonization furnace 6 is provided with a biomass charcoal outlet 65; the top of the modification reactor 8 is provided with a biomass charcoal feeding port 81, a modifier feeding port 82 and a temperature measuring device. Port 83, modifying agent feeding port 82 is used to add modifying agent, the bottom of modifying reactor 8 side walls is provided with discharge port 84, is provided with agitator 9 in modify...

Embodiment 2

[0037] A preparation device for modified biochar for soil treatment, the same as in Example 1.

[0038] A preparation method for modified biochar for soil treatment, comprising the following steps:

[0039] (a) Raw material preparation: the agricultural and forestry wastes are cleaned with tap water and dried naturally, and the agricultural and forestry wastes are straws;

[0040](b) Pulverization: the agricultural and forestry wastes are then sent to the pulverizer 1 through the biomass conveying pipeline for pulverization, and the pulverized agricultural and forestry wastes have a particle size of 10-50 mesh;

[0041] (c) granulation: sending the agricultural and forestry waste pulverized in step (b) into the granulator 2 for granulation to obtain granules, and sending the granules through the conveyor 4 and into the hoist 5;

[0042] (d) Preparation of biochar: send the particles described in step (c) into the carbonization furnace 6 through the top of the hoist 5 and calc...

Embodiment 3

[0046] A preparation device for modified biochar for soil treatment, the same as in Example 1.

[0047] A preparation method for modified biochar for soil treatment, comprising the following steps:

[0048] (a) Raw material preparation: the agricultural and forestry wastes are cleaned with tap water and dried naturally, and the agricultural and forestry wastes are straws;

[0049] (b) Pulverization: the agricultural and forestry wastes are then sent to the pulverizer 1 through the biomass conveying pipeline for pulverization, and the pulverized agricultural and forestry wastes have a particle size of 10-50 mesh;

[0050] (c) granulation: sending the agricultural and forestry waste pulverized in step (b) into the granulator 2 for granulation to obtain granules, and sending the granules through the conveyor 4 and into the hoist 5;

[0051] (d) Preparation of biochar: send the particles described in step (c) into the carbonization furnace 6 through the top of the hoist 5 and cal...

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Abstract

The invention provides a preparation device of modified biomass charcoal for soil treatment. A crusher is connected with a biomass conveying pipeline for conveying biomass. The biomass is agriculturaland forestry waste. The crusher is also connected with a granulator and the top of a biomass bin through pipelines in turn, and the bottom of the biomass bin is connected with one end of a conveyor through a pipeline, and the other end of the conveyor is connected with the lower part of the side wall of an elevator through a pipeline; the top of the elevator is connected with a biomass inlet through a pipeline; a biomass charcoal outlet is connected with a cooler, a biomass charcoal storage tank and a biomass charcoal feeding port through pipelines in turn; a discharge port is connected witha filter and a dryer through pipelines in turn. The preparation device of the modified biomass charcoal for soil treatment can realize automatic and large-scale treatment, and is prone to realizationof industrialization. The invention also provides a preparation method of the modified biomass charcoal for soil treatment.

Description

technical field [0001] The invention relates to the technical field of soil treatment, in particular to a preparation device and a preparation method of modified biochar for soil treatment. Background technique [0002] With the rapid development of my country's industry, especially with the rapid development of mining, non-ferrous metal smelting and other industries, a large amount of heavy metals (such as lead and cadmium are more common) are discharged into the soil environment during their production process. Heavy metal pollution has caused a huge threat to my country's food security and food security. Restoring or improving the soil polluted by heavy metals to ensure food security in my country has become a top priority. [0003] At present, there are many methods to reduce or repair heavy metal content in low soil, but it takes a long time and the effect is not ideal. The use of biomass activated carbon to adsorb and fix soil heavy metals has been reported at home an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B09C1/00C10B53/02B01J20/30
CPCB01J20/0222B01J20/04B01J20/20C10B53/02B09C1/00B01J2220/485Y02E50/10
Inventor 张守军陈温福赵成武孟军鲁万宝孙永明吴银龙李益瑞冯干程东海张守峰胡鹏孙云娟白轩宋俊阳张政王亚军
Owner HEFEI DEBO BIOENERGY SCI & TECH
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