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Composite durable anti-static gas isolation system and construction method

An isolation system, anti-static technology, applied in chemical instruments and methods, earthwork drilling, adhesive types, etc., can solve the problems of high risk of gas tunnel operation and hidden dangers of gas gas safety

Pending Publication Date: 2020-08-28
SICHUAN WEIDUN JIANGXIN CONSTR CO LTD +4
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a composite durable anti-static gas isolation system and construction method to solve the problem of gas isolation panels only being used to block gas in the prior art, the potential safety hazards of gas escape, and the high risk of gas tunnel operation technical problem

Method used

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  • Composite durable anti-static gas isolation system and construction method
  • Composite durable anti-static gas isolation system and construction method
  • Composite durable anti-static gas isolation system and construction method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0117] Preparation of non-bitumen-based self-adhesive gas insulation board (ie, insulation board 3):

[0118] S1. Preparation of polymer waterproof board:

[0119] ①Raw materials, as shown in Table 1 below:

[0120] Table 1 embodiment 1 prepares the raw material that polymer waterproof board adopts

[0121]

[0122] ②Preparation method:

[0123] A1. Raw material premixing: Inhale all raw materials into the high-mixer through the vacuum pump according to the ratio, and dry them in the high-mixer at a temperature of 53°C, and the mixing time is 3 minutes, and then put them into the low-mixer for 5 minutes. , the raw materials are mixed evenly;

[0124] A2. Extrusion molding: The raw materials mixed uniformly in step A1 are transported into the twin-screw extruder through the twin-screw conveyor, and the polymer waterproof board is extruded through the extrusion temperature of 220°C-240°C, and then passed through three Cool to normal temperature after the roll forming mach...

Embodiment 2

[0144] Preparation of non-bitumen-based self-adhesive gas insulation board (ie, insulation board 3):

[0145] S1. Preparation of polymer waterproof board:

[0146] ① Raw materials, as shown in Table 3 below:

[0147] Table 3 embodiment 2 prepares the raw material that polymer waterproof board adopts

[0148]

[0149] ②Preparation method:

[0150] A1. Raw material premixing: Inhale all the raw materials into the high mixer through the vacuum pump according to the ratio, and then dry them in the high mixer at a temperature of 50°C, and the mixing time is 2 minutes, and then put them into the low mixer for 6 minutes. , the raw materials are mixed evenly;

[0151] A2. Extrusion molding: The raw materials mixed uniformly in step A1 are transported into the twin-screw extruder through the twin-screw conveyor, and the polymer waterproof board is extruded through the extrusion temperature of 220°C-240°C, and then passed through three Cool to normal temperature after the roll fo...

Embodiment 3

[0171] Preparation of non-bitumen-based self-adhesive gas insulation board (ie, insulation board 3):

[0172] S1. Preparation of polymer waterproof board:

[0173] ① Raw materials, as shown in Table 5 below:

[0174] Table 5 embodiment 3 prepares the raw material that polymer waterproof board adopts

[0175]

[0176] ②Preparation method:

[0177] A1. Raw material premixing: Inhale all raw materials into the high-mixer through the vacuum pump according to the ratio, and dry them in the high-mixer at a temperature of 55°C, and the mixing time is 4 minutes, and then put them into the low-mixer for 4 minutes. , the raw materials are mixed evenly;

[0178] A2. Extrusion molding: The raw materials mixed uniformly in step A1 are transported into the twin-screw extruder through the twin-screw conveyor, and the polymer waterproof board is extruded through the extrusion temperature of 220°C-240°C, and then passed through three Cool to normal temperature after the roll forming machi...

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Abstract

The invention provides a composite durable anti-static gas isolation system and a construction method, and solves the technical problems that in the prior art, only a gas isolation plate is adopted for blocking gas, the potential safety hazard that the gas escapes easily exists, and the operation risk of a gas tunnel is large. The system sequentially comprises a primary lining concrete structure doped with an airtight agent, an anti-static polyethylene closed-cell foam board, an isolation board and a secondary lining concrete structure doped with the airtight agent, wherein the primary liningconcrete structure doped with the airtight agent is arranged on one side close to the gas. According to the system, gas isolation, flame retardancy, anti-static property and excellent mechanical properties can be met, escape of the gas can be avoided as much as possible, and the safety of gas tunnel engineering operation is improved.

Description

technical field [0001] The invention relates to a composite durable antistatic gas isolation system and a construction method. Background technique [0002] The anti-gas and waterproof isolation projects of tunnels in my country mainly need to meet the requirements of gas insulation, flame retardancy, antistatic properties and excellent mechanical properties. The current technology is more concerned with the isolation of gas isolation panels, and no more consideration is given to both sides. The role of concrete, in fact, the concrete structure itself has a huge effect on the barrier of gas gas, but it has been ignored by people. During the long-term use, the gas gas in the tunnel diffuses to the inner side of the tunnel. The phenomenon of accidents will increase the risk of gas tunnel operation. [0003] Therefore, the completed tunnel gas isolation system is the key technology to solve the gas escape from gas tunnels. [0004] The applicant finds that the prior art has at ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/00E21D11/10E21D11/38B32B5/18B32B7/12B32B13/04B32B13/12B32B27/18B32B27/30B32B27/32B32B27/34B32B33/00C08J7/12C08J9/00C08J9/10C08L23/08C09J11/06C09J11/08C09J157/02B29D7/01
CPCB29D7/01B32B5/18B32B7/12B32B13/045B32B13/12B32B27/18B32B27/306B32B27/32B32B27/34B32B33/00B32B2255/10B32B2255/26B32B2266/025B32B2266/08B32B2307/21B32B2307/306B32B2307/3065B32B2307/558B32B2307/7242B32B2307/7244C08J7/123C08J9/0023C08J9/0028C08J9/0038C08J9/0061C08J9/0066C08J9/0095C08J9/103C08J2203/04C08J2205/052C08J2323/08C08J2423/06C08J2477/02C08L23/0815C08L2201/02C08L2201/04C08L2201/08C08L2201/14C08L2201/22C08L2205/025C08L2205/035C08L2205/08C08L2207/062C09J11/06C09J11/08C09J157/02E21D11/00E21D11/10E21D11/38C08L77/02C08L23/0846C08L51/06C08K5/00C08K5/34928C08K5/1345C08K5/526C08K5/132C08K5/3435C08L53/02C08L23/22
Inventor 楚珑晟曹潇尹崔占明邓卫东刘勇袁志涛李雷
Owner SICHUAN WEIDUN JIANGXIN CONSTR CO LTD
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