Check patentability & draft patents in minutes with Patsnap Eureka AI!

Mine water blocking material and preparation device

A preparation device and mining technology, applied in the field of mine water blocking materials and preparation devices, can solve the problems of difficulty in achieving stirring effect, low temperature of central material, affecting the consistency of material temperature, etc., so as to protect health and improve compressive strength. , good mixing effect

Active Publication Date: 2019-11-08
LONGYAN UNIV
View PDF12 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the material viscosity of the synthetic polyurethane material is relatively high, and most of the existing preparation devices set the stirring blades at the bottom of the reactor, which is difficult to achieve the ideal stirring effect, and the heating devices are mostly distributed on the periphery of the reactor, and the stirring effect will also affect the temperature of the material consistency, it is easy to cause the phenomenon that the temperature of the external material is too high and the temperature of the central material is low

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
  • Mine water blocking material and preparation device
  • Mine water blocking material and preparation device

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] Such as figure 1 The preparation device of the mine water blocking material shown includes a body 1, a stirring mechanism is set in the body 1, and the stirring mechanism is driven by a motor 2 arranged on the top of the body 1, and the motor 2 and the stirring mechanism are The axial sealing connection can ensure the sealing performance in the body 1 and is beneficial to control the gas environment in the body 1 . The top of the body 1 is provided with a feed pipe 3, the bottom is provided with a discharge pipe 4, and the middle part is provided with a vacuum port 5, and the feed pipe 3 and the discharge pipe 4 are provided with control valves. The body 1 A heating pipe 6 is arranged on the side wall. A material tray 7 is fixed below the feed pipe 3, and the material tray 7 is inclined downward from the side wall of the body 1 to the center of the body 1, so that the material can be dispersed and prevented from being placed on the side of the bottom of the body 1. Ac...

Embodiment 1

[0028] The mine water blocking material is prepared according to the following steps:

[0029]Add 5kgFR-1830 (Wanhua Chemical) and 4kgPF-3805 (hydroxyl value 380 mgKOH / g, viscosity 3500 mPa·s / 25°C) into the reactor. Connect the vacuum pump port 5 to the vacuum pump and open the heating tube 6, vacuum dehydrate at 102-112°C for 2.5 hours, then close the vacuum pump and heating tube 6 and add 0.6kg of nano-calcium carbonate with a particle size of 70nm. Connect the vacuum port 5 to the nitrogen tank, and stir for 25 minutes under the protection of nitrogen. After the temperature is cooled to 45-55°C, add 5kg of isophorone diisocyanate into the reaction kettle, turn on the heating tube 6 again to control the reaction temperature at 75-85°C, and keep stirring under nitrogen protection for 180min; then add 0.2kg of silicone oil and stir evenly , to obtain component A.

[0030] 3kg NJ-305 (functionality 3, viscosity 280 mPa s / 25℃), 0.05kg dibutyltin dilaurate, 0.02kg triethylenedi...

Embodiment 2

[0033] The mine water blocking material is prepared according to the following steps:

[0034] Add 4.8kg FR-2026 (Wanhua Chemical) and 4kg PF-2011 (hydroxyl value 220 mgKOH / g, viscosity 2000 mPa·s / 25°C) into the reactor. Connect the vacuum pump port 5 to the vacuum pump and turn on the heating tube 6, vacuum dehydrate at 102-112°C for 2 hours, then close the vacuum pump and heating tube 6 and add 0.5kg of nano-calcium carbonate with a particle size of 70nm. Connect the vacuum port 5 to the nitrogen tank, and stir for 20 min under the protection of nitrogen. After the temperature is cooled to 45-55°C, add 4.5kg of 4,4'-dicyclohexylmethane diisocyanate into the reaction kettle, turn on the heating tube 6 again to control the reaction temperature at 75-85°C, and keep stirring under nitrogen protection for 150min; then add Stir 0.2kg of silicone oil evenly to obtain component A.

[0035] 2.5kg NJ-310 (functionality 3, viscosity 240 mPa s / 25℃), 0.04kg dibutyltin dilaurate, 0.01kg...

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
hydroxyl valueaaaaaaaaaa
hydroxyl valueaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to the field of high polymer materials and aims at providing a safe and environment-friendly mining water shutoff material with excellent flame retardation and a preparation device. The mining water shutoff material is characterized by being prepared from a component A and a component B, wherein the component A is prepared from materials in parts by weight: 48 to 52 parts of flame-retardant polyether polyol, 36 to 43 parts of flame-retardant polyester polyol, 45 to 55 parts of isocyanate, 5 to 8 parts of nano calcium carbonate and 2 to 3 parts of silicone oil; the component B is prepared from materials in parts by weight: 25 to 35 parts of polyether polyol, 0.5 to 0.8 part of catalyst, 8 to 12 parts of propylene carbonate, 3 to 4 parts of antimony oxide, 2 to 3 parts of magnesium hydroxide and 1 to 2 parts of diethylaminoethanol. The mining water shutoff material disclosed by the invention is safe and environment-friendly, has excellent flame retardation and curing performance and is beneficial to construction safety and protecting body health of constructors.

Description

technical field [0001] The invention belongs to the field of macromolecular materials, and in particular relates to a mine water blocking material and a preparation device. Background technique [0002] At present, when mining tunnels, shafts, tunnels, submarine tunnels, subways and other underground projects are excavated, leakage often occurs, especially in underground projects built in rocks, sometimes a large amount of groundwater gushes out, and groundwater passes through rock cracks. It can cause serious harm to underground projects, and it is necessary to use polyurethane water blocking materials to control water gushing or prevent seepage and plugging. The anti-seepage of dam body and dam foundation, water seepage around foundation pit and base water and sand inrush can also be treated by polyurethane grouting method. [0003] Polyurethane chemical water blocking material is a new anti-seepage and plugging consolidation material developed after acrylamide and epoxy ...

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 Patents(China)
IPC IPC(8): C08G18/40C08G18/48C08G18/42C08G18/50C08G18/75C08K3/22C08K3/26C08K5/17C08K13/02C08L75/08
CPCC08G18/4018C08G18/4202C08G18/4804C08G18/5075C08G18/755C08G18/758C08K3/22C08K3/2279C08K3/26C08K5/17C08K13/02C08K2003/2224C08K2003/265C08L75/08
Inventor 仲涛郭玉森刘淑金刘谦袁广民杨馥源刘铮杨志平曾斌徐树生
Owner LONGYAN UNIV
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com