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Ecological chemical coagulant for open-pit mine blasting and preparation method thereof

An ecological and coagulant technology, applied in the field of environmental pollution control, can solve secondary pollution and other problems

Active Publication Date: 2018-04-24
ANSTEEL GRP MINING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cheap and practical high-efficiency multifunctional chemical coagulants are difficult to obtain, and the use of chemical coagulants may also cause secondary pollution

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Add carboxymethylcellulose sodium, xanthan gum, sodium citrate, citric acid and sodium alginate into water and stir to dissolve to prepare a chemical agglomerating agent; wherein the mass concentration of carboxymethylcellulose sodium is 0.1%, xanthan gum The mass concentration of sodium citrate is 0.2%, the mass concentration of sodium citrate is 0.01, the mass concentration of citric acid is 0.03%, and the mass concentration of sodium alginate is 0.1%;

[0030] Raw materials are prepared, and the ratio of each component by mass is: 1 part of humectant, 0.01 part of surfactant, 0.01 part of chemical agglomeration agent, 5 parts of antifreeze, and 200 parts of water;

[0031] Described humectant is glycerol;

[0032] Described tensio-active agent is sodium dodecylbenzenesulfonate+sodium sulfate, and the mass ratio of sodium dodecylbenzenesulfonate and sodium sulfate is 1:0.5;

[0033] Described antifreezing agent is sodium nitrite;

[0034] Divide the water into part ...

Embodiment 2

[0038] Method is with embodiment 1, and difference is:

[0039] (1) Chemical agglomerating agent; the mass concentration of sodium carboxymethylcellulose is 0.2%, the mass concentration of xanthan gum is 0.1%, the mass concentration of sodium citrate is 0.03, the mass concentration of citric acid is 0.02%, seaweed The mass concentration of sodium acid is 0.2%;

[0040] (2) Raw materials are prepared, and the ratio of each component by mass is: 3 parts of humectant, 0.5 part of surfactant, 0.5 part of chemical agglomerating agent, and 8 parts of antifreeze;

[0041] Described humectant is sorbitol;

[0042] Described tensio-active agent is sodium dodecylbenzenesulfonate+sodium sulfate, and the mass ratio of sodium dodecylbenzenesulfonate and sodium sulfate is 1:0.8;

[0043] Described antifreezing agent is diethylene glycol;

[0044] (3) The viscosity of the ecological chemical coagulant used in open-pit mine blasting is 21.8kPa·s.

Embodiment 3

[0046] Method is with embodiment 1, and difference is:

[0047] (1) Chemical agglomerating agent; the mass concentration of sodium carboxymethylcellulose is 0.3%, the mass concentration of xanthan gum is 0.1%, the mass concentration of sodium citrate is 0.03, the mass concentration of citric acid is 0.02%, seaweed The mass concentration of sodium acid is 0.3%;

[0048] (2) Raw materials are prepared, and the ratio of each component by mass is: 5 parts of humectant, 1 part of surfactant, 1 part of chemical agglomerating agent, and 10 parts of antifreeze;

[0049] Described tensio-active agent is sodium dodecylbenzenesulfonate+sodium sulfate, and the mass ratio of sodium dodecylbenzenesulfonate and sodium sulfate is 1:1;

[0050] Described antifreezing agent is the equal mass mixture of sodium nitrite and diethylene glycol;

[0051] (3) The viscosity of the ecological chemical coagulant used for open-pit mine blasting is 36.6kPa·s.

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Abstract

The invention provides an ecotype chemical coagulation agent for explosion of a surface mine and a preparation method thereof. The ecotype chemical coagulation agent comprises the following raw materials by mass: 1 to 10 parts of a humectant, 0.01 to 5 parts of a surfactant, 0.01 to 5 parts of a chemical agglomerator, 5 to 20 parts of an antifreeze agent and 200 parts of water. The preparation method comprises the following steps: (1) dissolving carboxymethylcellulose sodium and the like in water under stirring so as to prepare the chemical agglomerator; (2) preparing the raw materials consisting of the humectant, the surfactant, the chemical agglomerator, the antifreeze agent and water; (3) dividing the water into water part A and water part B; (4) mixing the surfactant and the chemical agglomerator with the water part A; and (5) adding the humectant under stirring, carrying out dissolving and then adding the antifreeze and the water part B. The ecotype chemical coagulation agent provided by the invention has integrated functions of wetting, agglomeration, antifreezing, moisture retention and the like; and the used raw materials are cheap, easily available, environment-friendly, nontoxic and biodegradable.

Description

technical field [0001] The invention relates to the technical field of environmental pollution control, in particular to an ecological chemical coagulant used for open-pit mine blasting and a preparation method thereof. Background technique [0002] Dust pollution is one of the main factors leading to the environmental pollution of the blasting site. With the continuous increase of open-pit mining in my country, the production intensity continues to increase, the level of mechanization continues to increase, and the area and depth of blasting are also gradually increasing; during the blasting process, a large amount of dust will be produced, and the particle size of 90% of these dust They are all below 10μm. These fine dust particles will not only pollute the surrounding environment, but also seriously endanger the safety of construction workers on site. [0003] So far, there is no effective method to achieve dynamic dust suppression during the blasting process. The main re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/22
CPCC09K3/22
Inventor 张宝才宫长亮崔媚华代俊杰刘述栋张建立
Owner ANSTEEL GRP MINING CO LTD