Static crushing agent used cooperatively with down-the-hole drill

A technology of static breaker and activator, which is applied in the field of static breaker and can solve the problems of large expansion force, etc.

Inactive Publication Date: 2015-03-18
张建彪 +1
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

and greater expansion

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

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0016] Example 1: In the expansion of a road in Anji County, Huzhou, Zhejiang, a granite hill of more than 10,000 cubic meters was encountered. Because there are communication trunk lines and high-voltage wires nearby, explosives cannot be used for blasting, and static blasting technology can only be used for construction. It was early spring, the temperature was 7---12°C, the drilling diameter was 100MM, the hole spacing was 80MM, and the hole depth was 2.5M. 65%, 25%, 2%, 0.1%, 8%. Filled at 7:00 am and cracked at 17:00 pm.

example 2

[0017] Example 2: A stone factory in Danjiangkou Reservoir Area, Shiyan City, Hubei Province, used the present invention to do static blasting experiments on the limestone foundation near the house. The temperature is about 15°C, the hole diameter is 105MM, the hole depth is 3 meters, and the hole distance is 80CM. It is filled at 8:30 in the morning and cracks at 16:00 in the afternoon.

example 3

[0018] Example 3: A 23-story building is planned to be built in a prosperous road section in Baoan District, Shenzhen. When digging a basement pit, rocks are encountered. Surrounded by residential buildings and institutional buildings, only static blasting techniques can be used for construction. At the temperature of 32°C at that time, the activator, the setting hardener, the strengthening agent, the water reducer, and the retarder were mixed in proportions of 43%, 40%, 3%, 0.1%, and 14%, and the water ash of 0.25 Than, add water and stir. Use a rock drilling rig to drill holes, hole layout parameters: hole diameter is 90MM, hole depth is 3M, hole distance is 60--80CM, the filling is completed in rows at 10:00 in the evening, and the holes are completely cracked at 6:00 the next morning. Where the air surface is not good, the breaker of the excavator needs to be used to expand the crack before shipment; where the air surface is good, the width of the crack can be inserted i...

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
pore sizeaaaaaaaaaa
Login to view more

Abstract

The invention belongs to a novel static crushing agent. The novel static crushing agent can be used cooperatively with a down-the-hole drill, and the aperture is 75-105mm. Over burnt lime undergoes ball milling or Raymond mill reduction until the specific surface area is 2100-2700cm<2> / G. The static crushing agent is prepared by mixing 43-70% of the exciting agent over burnt lime with 30-40% of a setting and hardening agent, 2-5% of a setting promoting reinforcing agent, 0.05-0.1% of a water reducer and 5-14% of a retardant. The problems of high labor cost and low efficiency caused by only use of an artificial small-aperture rock drill in previous static crushing construction are solved. The static crushing agent has the advantages of large crushing power, high mechanization degree, high construction efficiency and the like.

Description

technical field [0001] The invention belongs to the static breaking agent, which can be used with down-the-hole drilling, and the aperture can be between 75MM and 105MM. [0002] Static breaker, also known as silent breaker, is a non-explosive chemical building material product that can break rock concrete. The national standard is JC506--92. Background technique [0003] Earlier static breaking agent, such as Japanese Patent Application Laid-Open No. 55-142894, its main component is tricalcium silicate 3CAO.SIO2, crystal grains account for 24%---26% (weight), CAO grains account for 30% ---60% (weight), gypsum CASO4 accounts for 5% ---17% (weight). The above-mentioned grains are crushed, ground, mixed and granulated according to a certain weight ratio, calcined and ground at 1400-1600 °C, and the obtained tricalcium silicate 3CAO.SIO2 contains more than 50% of CAO grains agglomerated powder. Although this kind of breaking agent has a certain expansion force, the cracking...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00C04B28/04C04B28/06C04B22/06
Inventor 张建彪杨锐
Owner 张建彪
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap