CN-121993242-A - Remote control tunnel face modularized purification device and method

CN121993242ACN 121993242 ACN121993242 ACN 121993242ACN-121993242-A

Abstract

The invention belongs to the technical field of tunnel and underground engineering construction environment guarantee, and particularly relates to a tunnel face modularized purification device and method capable of being remotely controlled. The device comprises a mobile chassis and power integration unit, an aerosol trapping and preprocessing module, an electrostatic fine dust removal module, a harmful gas adsorption module and a monitoring and control module, wherein the mobile chassis and power integration unit is used for bearing the whole device and realizing movement and power supply, the aerosol trapping and preprocessing module is used as an air inlet and primary purification unit of the device, the electrostatic fine dust removal module is used for trapping fine particles, the harmful gas adsorption module is used for removing target harmful gas, and the aerosol trapping and preprocessing module, the electrostatic fine dust removal module and the harmful gas adsorption module are sequentially connected in series to form a multistage sequential purification passage. The invention realizes the rapid and efficient removal of dust and harmful gas at a pollution source by a movable and modularized centralized purification mode.

Inventors

LI LONG
WANG SHUAISHUAI
GUO YABIN
NIU YAPENG
YIN XUNJIANG
FANG BINGHUI
Lai Xianjie

Assignees

中交第二公路工程局有限公司

Dates

Publication Date: 20260508
Application Date: 20260115

Claims (10)

1. A tunnel face modularized purification device capable of being remotely controlled is characterized by comprising a movable chassis and a power integration unit (1), an aerosol capturing and preprocessing module (2), an electrostatic fine dust removal module (3), a harmful gas adsorption module (4) and a monitoring and control module (5), wherein the movable chassis and the power integration unit (1) are used for bearing the whole device and realizing movement and power supply, the aerosol capturing and preprocessing module (2) is fixedly arranged on the movable chassis and the power integration unit (1) and is used as an air inlet and primary purification unit of the device, the electrostatic fine dust removal module (3) is communicated with an air outlet end of the aerosol capturing and preprocessing module (2) through an air duct and is used for capturing fine particles, the harmful gas adsorption module (4) is connected with an air outlet of the electrostatic fine dust removal module (3) through a quick connection air duct and is used for removing target harmful gas, the monitoring and control module (5) is used for monitoring the running state and realizing remote or local control, and the aerosol capturing and preprocessing module (2), the electrostatic fine dust removal module (3) and the electrostatic fine dust removal module (4) are sequentially connected in series.
2. The tunnel face modularized purifying device capable of being remotely controlled according to claim 1, wherein the mobile chassis and power integration unit (1) comprises a heavy tire type chassis (11), a storage battery pack (12), an automatic power-on/power-off cable reel (13) and a cable reel motor (14), the heavy tire type chassis (11) is provided with four-wheel drive and steering capability, the storage battery pack (12) is used for supplying power for the heavy tire type chassis (11) and a monitoring and control module (5), the automatic power-on/power-off cable reel (13) is used for being connected with an external high-voltage distribution box to provide a main power supply for device purifying operation, and the cable reel motor (14) is used for controlling the power-on/power-off of the automatic power-off cable reel (13).
3. The tunnel face modular purification device capable of being remotely controlled according to claim 1, wherein the aerosol trapping and preprocessing module (2) comprises a centrifugal fan (21), a cyclone dust collector (22), a dust collection box (23) and an air heater (24), wherein the centrifugal fan (21) is used for generating suction power, the cyclone dust collector (22) at least comprises a cyclone separator, the cyclone separator is located at an air outlet end of the centrifugal fan (21) and used for separating medium-large-particle-size dust, the dust collection box (23) is located below the cyclone dust collector (22) and used for collecting trapped dust, and the air heater (24) is installed in an outlet air duct of the cyclone dust collector (22) and used for generating drying hot air.
4. The tunnel face modularized purification device capable of being remotely controlled according to claim 1, wherein the electrostatic fine dust removal module (3) comprises a high-voltage electrostatic field, the high-voltage electrostatic field comprises an anode plate (31) and a cathode wire (32), an external high-pressure water flushing interface (33) and a spray header (34) are arranged on the upper portion of the electrostatic fine dust removal module (3), the external high-pressure water flushing interface (33) is connected with an external water source, a water collecting drain pipe (35) is arranged at the bottom of the electrostatic fine dust removal module (3) and used for discharging flushing sewage, and a transparent observation window (36) is arranged at the top of the electrostatic fine dust removal module (3).
5. The tunnel face modularized purification device capable of being remotely controlled according to claim 1 is characterized in that the harmful gas adsorption module (4) comprises a plurality of drawer type adsorbent boxes (41) and a protection net (44) which are arranged in parallel, sliding rails (43) are arranged on the drawer type adsorbent boxes (41) and are used for achieving horizontal drawing of the drawer type adsorbent boxes (41), the side face of the device is horizontally drawn, a plastic pad (42) is arranged at the joint of the harmful gas adsorption module (4) and the electrostatic fine dust removal module (3) and is used for sealing, and adsorption media for different harmful gases are independently filled in each drawer type adsorbent box (41).
6. The remotely controllable modular purification device for tunnel face of claim 5, wherein the adsorption medium comprises at least one of activated carbon, modified activated carbon, or molecular sieve for targeted purification of hydrogen sulfide, nitrogen oxides, volatile organic compounds, or methane gas.
7. The tunnel face modularized purifying device capable of being remotely controlled according to claim 1, wherein the monitoring and control module (5) comprises a sensor group (51), an industrial programmable logic controller (52), a control panel (53), a control button (54) and a remote controller (56), the sensor group (51) at least comprises a voltage and current sensor for monitoring the working state of an electrostatic module, an inlet dust sensor, an outlet dust sensor and a multi-gas concentration sensor for monitoring the purifying efficiency, the industrial programmable logic controller (52) is used for receiving sensor signals and executing control logic, the control panel (53) and the control button (54) are used for displaying states, alarming information and receiving manual operation instructions, and the remote controller (56) is used for moving and controlling functions of the device outside a safe distance.
8. A remotely controllable modular purification method for tunnel face, which adopts the remotely controllable modular purification device for tunnel face as claimed in claim 1, and is characterized by comprising the following steps: S1, modular preparation and system deployment, namely selecting a corresponding adsorbent for a harmful gas adsorption module (4) according to the harmful gas type of tunnel geological forecast, remotely controlling the device to travel to a safe area behind a tunnel face, and accessing an external power supply; S2, starting the device and performing multistage sequential purification, namely enabling polluted air to pass through an aerosol trapping and preprocessing module (2) in sequence to perform primary dust removal, a fine electrostatic dust removal module (3) to perform fine dust removal, a harmful gas adsorption module (4) to perform harmful gas adsorption, and discharging clean air; s3, intelligent monitoring and maintenance early warning, wherein the monitoring and control module (5) monitors key parameters of each module in real time, and automatically sends out early warning when judging that maintenance is needed; S4, external flushing and quick drying recovery, namely, in operation intermittence, connecting an external water source to flush the electrostatic fine dust removal module (3) with high-pressure water, and then starting an air heater (24) in the aerosol capturing and pretreatment module (2) to send hot air for drying; S5, adsorbent replacement and circulation operation, namely rapidly replacing saturated adsorbent drawers in the harmful gas adsorption module (4) according to monitoring data or preset time, so that the device recovers high-efficiency purification capability.
9. The method for modular purification of tunnel face capable of being remotely controlled according to claim 8, wherein in the step S2, the device is started by a remote controller (56) at a safe distance of 80 m from the face.
10. The method for modular purification of tunnel face capable of remote control according to claim 8, wherein in step S4, the rinsing and drying process is completed in the shift gap, and the total time is not more than 30 minutes to minimize the interference to the construction process.

Description

Remote control tunnel face modularized purification device and method Technical Field The invention belongs to the technical field of tunnel and underground engineering construction environment guarantee, and particularly relates to a tunnel face modularized purification device and method capable of being remotely controlled. Background In the tunnel drilling and blasting construction, the face blasting operation can instantaneously generate extremely high-concentration dust particles (including a large amount of PM2.5 and other fine particles which are extremely harmful to human bodies) and various toxic and harmful gases (such as carbon monoxide CO, nitrogen oxides NOx, sulfur dioxide SO 2, hydrogen sulfide H 2 S and the like). At present, a high-power ventilation system is mainly relied on in construction to dilute and discharge the high-concentration pollutants out of a hole. However, this approach simply diffuses contaminants from the face area to the entire tunnel space, resulting in a contaminant concentration throughout the tunnel that remains at a measurable level for a longer period of time, and still constitutes a continuing threat to respiratory health and safety production for all constructors within the tunnel. To ameliorate this problem, large scale decontamination equipment that integrates dust and harmful gas removal functions into mobile vehicles has also emerged. However, the equipment has obvious limitations in practical application, namely, firstly, the equipment is huge in size, poor in mobility in a narrow tunnel section, difficult to move and turn, and extremely easy to interfere with vehicle streamlines in key working procedures such as slag discharge, support and the like, and the overall construction efficiency is influenced, secondly, the purification function module is mainly designed in a fixed integrated manner, and cannot be flexibly configured and optimized according to the difference of pollutant components (such as rock dust is mainly or gas or hydrogen sulfide is rich) in specific projects, so that the equipment utilization rate is low or the treatment effect is poor, thirdly, the maintenance and repair are complex, and especially the cleaning and maintenance of core units such as electrostatic dust removal are often long in time consumption, and the attendance rate of the equipment is influenced. Therefore, the prior art mode has a prominent contradiction that the health hazard cannot be fundamentally eliminated by simply relying on ventilation, the large air quantity is required to be maintained, the energy consumption and the cost are high, and the use of the prior large-scale purifying equipment is subject to maneuverability, flexibility and maintenance convenience. There is an urgent need for a new method and new small and medium-sized equipment that can directly support the pollution source (tunnel face) and perform rapid centralized purification treatment. The centralized purification mode is hopeful to directly remove high-concentration pollutants before diffusion, so that not only can personnel health be more effectively protected, but also ventilation waiting time required for reaching safe operation conditions after blasting can be obviously shortened, and construction cycle is quickened. Meanwhile, as the pollutants are largely removed at the source, the fresh ventilation air quantity required by the subsequent maintenance of the whole tunnel environment can be correspondingly reduced, so that the ventilation energy consumption and the long-term operation cost of tunnel construction are reduced as a whole. Therefore, under the background that the requirements of the current tunnel engineering on construction safety, occupational health and construction efficiency are increasingly improved, the centralized purification system which is applicable to the face area, flexible, modularized and efficient is developed, and the centralized purification system has important engineering significance and economic value. Disclosure of Invention Aiming at the problems that the construction continuity is affected by the fact that a full tunnel with pollutant diffusion after tunnel face blasting, traditional large-scale purification equipment has poor mobility, functional solidification and inconvenient maintenance in the existing tunnel construction, the invention aims to provide a remote control tunnel face modularized purification device and a remote control tunnel face modularized purification method. The technical scheme includes that the tunnel face modularized purification device capable of being remotely controlled comprises a movable chassis and a power integration unit, an aerosol capturing and preprocessing module, an electrostatic fine dust removal module, a harmful gas adsorption module and a monitoring and control module, wherein the movable chassis and the power integration unit are used for bearing the whole device and achieving movement and power supply, the