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Quick-setting stemming material for filling blasting hole

A technology of rapid setting and gun mud, which is applied in blasting and other directions, which can solve the problems that mechanized operations cannot be realized, and achieve the effect of improving blasting effect, good continuity, and good fluidity of single slurry

Active Publication Date: 2022-06-14
北京中大科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process of blast hole filling cannot yet be mechanized

Method used

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  • Quick-setting stemming material for filling blasting hole
  • Quick-setting stemming material for filling blasting hole
  • Quick-setting stemming material for filling blasting hole

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The quick-setting mud material provided by the embodiment of the present invention is composed of two kinds of composite materials, A and B, and is suitable for making quick-setting mud.

[0031] The materials A and B are solid materials, which can be prepared by adding water and mixing to form solid quick-setting mud.

[0032] The quick-setting clay composite material A comprises: sulfoaluminate cement clinker, bentonite, retarder and dispersant.

[0033] Specifically, by mass percentage, the sulfoaluminate cement clinker is 80.5-94.1%, the bentonite is 4.7-14.9%, the retarder is 0.27-3%, and the dispersant is 0.09-2.1%.

[0034] In some embodiments of the present invention, the A material further comprises: a suspending agent. The mass percentage of the suspending agent is 0.18% to 2.1%.

[0035] Further, the retarder is one or a combination of two or more of citric acid, glucose and sorbitol.

[0036] The dispersant is one or a combination of calcium lignosulfonat...

preparation example 1

[0063] Get the A material and B material of following mass percentage, A material comprises: 36kg sulfoaluminate cement, 4kg bentonite, 0.36kg glucose, 0.16kg calcium lignosulfonate; Quick lime 5.2kg, calcium carbonate 10kg, sodium metaaluminate 1.2kg, lithium carbonate 0.12kg.

[0064] Add water to material A and stir, and the mass ratio of material A and water is 1:2; add water to material B, and stir, and the mass ratio of material B and water is 1:2; the A slurry and B slurry formed after adding water and stirring are in volume ratio. 1:1 mixed uniformly to obtain quick-setting gun mud slurry. The initial setting time of the quick-setting mud slurry is 1min30s, the final setting time is 30min, and the final setting strength is not less than 0.2MPa. Among them, the aforementioned equipment can be used for stirring and mixing.

preparation example 2

[0066] The components of quick-setting clay are prepared according to the following mass percentages of raw materials:

[0067] Material A is composed of the following raw materials by mass percentage: 36kg sulfoaluminate cement, 2kg bentonite, 0.4kg glucose, 0.24kg citric acid, 0.48kg sodium tripolyphosphate, 0.12kg xanthan gum; Material B is composed of the following raw materials by mass percentage Composition: 22kg of quicklime gypsum, 6kg of quicklime, 9.6kg of calcium carbonate, 1.4kg of sodium metaaluminate, and 0.24kg of lithium chloride.

[0068] Add water to material A and stir, and the mass ratio of material A to water is 1:1.5; add water to material B, and stir, and the mass ratio of material B to water is 1:2; the A slurry and B slurry after adding water and stirring are in a volume ratio of 1 : 1 Mix evenly to obtain quick-setting gun mud slurry.

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Abstract

The embodiment of the invention provides a quick-setting stemming material for filling blasting holes, and relates to the technical field of engineering blasting. The quick-setting stemming is composed of a composite material A and a composite material B. The quick-setting stemming composite material A comprises sulphoaluminate cement clinker, bentonite, a retarder and a dispersing agent. The quick-setting stemming composite material B is prepared from gypsum, quick lime, calcium carbonate, an accelerator and an early strength agent. When the quick-setting stemming material is used, slurry is prepared from the material A, the material B and water according to the mass ratio of 1: (1-3), and when the quick-setting stemming material is used, the slurry prepared from the material A and the slurry prepared from the material B are fully mixed according to the volume ratio of 1: 1, conveyed into a blast hole through a pump and a pipeline and quickly set into solid quick-setting stemming. The device is applied to a blasting operation construction scene, has the same filling effect and effect as manual stemming filling, can be pumped to achieve blasting operation blast hole filling mechanical operation, and is beneficial to improving the automatic operation level and the blasting effect of blasting operation.

Description

technical field [0001] The invention relates to the technical field of engineering blasting, and relates to a quick-setting mud material used for filling blasting holes. Background technique [0002] The filling materials used in blasting construction to block the blastholes are commonly known as blast mud. At present, the most used blast mud materials in underground blasting operations are clay soil and loess, which are obtained locally. A certain percentage of fine sand. Although there are research reports on new packing materials such as expansive cement and polyurethane materials, they have not been practically applied in engineering. [0003] At present, the blast hole filling operation in the underground blasting project is carried out manually, and it is necessary to manually feed the blast mud into the blast hole bit by bit and tamper it with a cannon stick. The mud machine only makes the loose mud into a column, and when filling, it still needs to be manually fed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/06F42D1/18
CPCC04B28/06F42D1/18C04B2201/50C04B14/104C04B22/064C04B22/143C04B22/10C04B24/10C04B24/18C04B22/0093C04B14/28C04B22/16C04B22/124C04B24/06C04B24/38C04B22/148C04B24/04C04B24/383
Inventor 刘殿书赵文博
Owner 北京中大科技发展有限公司
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