Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for efficiently and synchronously eliminating CO products in blasting operation

A high-efficiency, product technology, applied in blasting, separation methods, chemical instruments and methods, etc., can solve the problems of difficult large-scale application, poor adsorption effect, difficult recycling and other problems, achieve low cost, reduce CO concentration, and CO elimination effect. significant effect

Pending Publication Date: 2022-03-04
CHINA UNIV OF MINING & TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Adsorbents are difficult to use on a large scale due to their limitations such as easy oxidation, poor adsorption effect under normal temperature and pressure conditions, and difficulty in recycling. The cryogenic method is to liquefy CO and then purify CO, and the high cost limits the application of this method.
Both of the above are not suitable for CO gas removal after underground blasting operations

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for efficiently and synchronously eliminating CO products in blasting operation
  • Method for efficiently and synchronously eliminating CO products in blasting operation
  • Method for efficiently and synchronously eliminating CO products in blasting operation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Example 1: A high-efficiency and simultaneous elimination method for CO products in blasting operations. The elimination agent is prepared by hydrothermal method with a single metal oxide or two or more composite metal oxides in copper, manganese, aluminum, cobalt, etc. as the main body After preparing the scavenger, grind the scavenger to more than 120 mesh, and activate it at 200-300°C in a dry environment for 0.5 hours; then put the activated scavenger powder into the scavenger powder bag 6 for packaging , when in use, three eliminating agent powder bags 6 are bundled, placed in the eliminating agent charging pipe 7, each joint is closely connected, and the eliminating agent charging pipe 7 is sent into the blasthole 10 with the medicine feeding rod 8 subsequently In the designated position, seal the hole 10 with the sealing agent 9, and finally carry out the blasting operation. During the blasting, the shock wave acts on the scavenging agent, forming a high-concentra...

Embodiment 2

[0040] Example 2: A method for efficient and synchronous elimination of CO products in blasting operations, which is suitable for the elimination of CO in daily underground production and emergency disposal of CO in disaster situations. It is applied on-site in a certain mine and adopts full-section one-time blasting. The cross-sectional area of ​​the roadway is 17.8m 2 , about 60kg of three-stage emulsion explosives are used each time. The maximum value of CO concentration in the return air flow after blasting is as high as 524ppm, and the average value is 265ppm, far exceeding the regulations on CO concentration in the regulations, which seriously affects the safe production process of coal mines. A scavenger powder bag is designed based on flame-retardant and high-temperature-resistant materials. The powder bag is placed at the back end of the emulsion explosive and sealed with a sealing material. When the explosive is detonated, the blast hole forms a high-temperature air...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for efficiently and synchronously eliminating CO products in blasting operation, which comprises the following steps of: arranging high-temperature CO eliminating agent powder and explosive into a blast hole together, breaking an eliminating agent powder bag by blasting shock waves, quickly forming high-concentration dust cloud in the blast hole, and removing the CO products in the blast hole by utilizing the physical and chemical adsorption effect of CO molecules on the surface of the eliminating agent powder. And rapid removal of CO after blasting is realized. The method comprises the following steps: preparing the eliminating agent, performing high-temperature activation on the eliminating agent, bagging, transporting an explosive cartridge to a specified position in a blast hole, arranging a detonator, leading a blasting line of the detonator out of the blast hole, arranging the eliminating agent behind the explosive cartridge and in front of a hole sealing agent in a filling manner, and sealing the hole tightly by using the hole sealing agent to prevent punching. The method is simple and convenient, the process is simple, the material cost is low, the high-temperature CO catalyst is combined with the underground blasting operation, CO generated after the blasting operation is effectively eliminated, and damage of CO to blasting personnel is prevented.

Description

technical field [0001] The invention relates to the technical field of toxic gas purification, in particular to a method for efficient and synchronous elimination of CO products in blasting operations. Background technique [0002] The overrun of CO in coal mines seriously threatens the health and safety of workers. CO is a colorless, odorless, colorless, highly toxic gas that easily combines with hemoglobin in human blood to form carboxyhemoglobin. When the concentration of CO in the environment exceeds 100ppm When the concentration of CO exceeds 600ppm, the human body will experience dizziness, fatigue and other discomforts; when the CO concentration exceeds 600ppm, it will cause asphyxiation and death in a short period of time. In order to avoid underground CO poisoning casualties, the "Coal Mine Safety Regulations" clearly stipulates that the maximum allowable concentration of CO in underground air is 24ppm. At present, some mines have the characteristics of high rock h...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): F42D5/00F42D1/10B01D53/81B01D53/62
CPCF42D5/00F42D1/10B01D53/81B01D53/62Y02A50/20
Inventor 陈小雨周福宝何胜刘春李乐
Owner CHINA UNIV OF MINING & TECH