Search

CN-121976712-A - Building site self-cleaning fence based on spraying photocatalysis self-cleaning coating

CN121976712ACN 121976712 ACN121976712 ACN 121976712ACN-121976712-A

Abstract

The invention relates to the technical field of air pollution control and discloses a self-cleaning fence for a construction site based on spraying photocatalytic self-cleaning paint, which comprises a modularized fence supporting structure, a self-cleaning fence module, a spraying dust suppression system and a monitoring control mechanism, wherein the self-cleaning fence module comprises a base plate and a photocatalytic nano coating, the base plate is detachably connected to the modularized fence supporting structure, the photocatalytic nano coating is fixed on a working surface of the base plate through a crystal embedding load process, the spraying dust suppression system is arranged on the modularized fence supporting structure, the monitoring control mechanism comprises a control system and a gas monitoring system, the control system and the gas monitoring system are arranged on the modularized fence supporting structure, and the gas monitoring system and the spraying dust suppression system are electrically connected with the control system. The invention realizes the in-situ and continuous treatment of various pollutants generated in the construction process on the pollution diffusion path by utilizing the photocatalysis effect, thereby improving the efficiency and the economical efficiency of the pollution treatment of the construction site.

Inventors

  • CHEN XIN
  • LIU YONGHONG
  • ZHOU HONG
  • DONG JINWEI
  • WANG YIQI
  • GUO QIAN
  • MA TINGTING

Assignees

  • 浙江环研生态环境有限公司

Dates

Publication Date
20260505
Application Date
20260128

Claims (9)

  1. 1. Building site self-cleaning encloses fender based on spraying photocatalysis self-cleaning coating, characterized by comprising: A modular enclosure support structure; The self-cleaning surrounding baffle module (1), the self-cleaning surrounding baffle module (1) comprises a base plate (11) and a photocatalysis nanometer coating layer (12), the base plate (11) is detachably connected to the modularized surrounding baffle supporting structure, and the photocatalysis nanometer coating layer (12) is fixed on the working face of the base plate (11) through a crystal embedding loading process; The spray dust suppression system is arranged on the modularized enclosure supporting structure; The monitoring control mechanism comprises a control system (10) and a gas monitoring system (9), wherein the control system (10) and the gas monitoring system (9) are both arranged on the modularized enclosure supporting structure, and the gas monitoring system (9) and the spraying dust suppression system are both electrically connected with the control system (10); The raw materials of the photocatalysis nano coating layer (12) comprise a photocatalysis super hydrophilic auxiliary agent and a main catalyst, wherein the main catalyst is any one or more of nano titanium dioxide, N and/or C doped nano titanium dioxide and noble metal loaded nano titanium dioxide.
  2. 2. The self-cleaning fence for a construction site based on spraying photocatalytic self-cleaning paint according to claim 1, wherein the embedded crystal loading process comprises the following steps: cleaning the working surface of the substrate (11); Spraying slurry on the working surface of the substrate (11), wherein the slurry contains a photo-induced super-hydrophilic auxiliary agent, a main catalyst, an inorganic binder and a functional auxiliary agent; When the slurry is not completely dried, rolling the surface of the photocatalysis nano coating layer (12) by adopting mechanical rolling equipment, so that the slurry is embedded into pores on the surface of the substrate (11); And curing the slurry to enable the slurry to complete crystal phase curing in pores on the surface of the substrate (11) and form a jogged structure, so that the photocatalysis nano coating layer (12) is fixed on the working surface of the substrate (11).
  3. 3. The self-cleaning construction site enclosure based on the spraying photocatalytic self-cleaning coating according to claim 2, wherein the functional auxiliary agent comprises wear-resistant particles and an ultraviolet aging resistant agent; the particle size of the nano titanium dioxide is 10 nm-50 nm.
  4. 4. The self-cleaning fence based on spraying photocatalytic self-cleaning paint according to claim 2, characterized in that a bonding transition layer (13) is arranged between the photocatalytic nano-coating (12) and the substrate (11), when the bonding transition layer (13) is arranged, the slurry is solidified on the surface of the bonding transition layer (13), and the bonding transition layer (13) is bonded on the working surface of the substrate (11); the raw materials of the bonding transition layer (13) comprise resin and a silane coupling agent, wherein the resin adopts weather-proof epoxy resin or fluorocarbon resin.
  5. 5. The self-cleaning fence for construction sites based on spraying photocatalytic self-cleaning paint according to claim 1, wherein the modularized fence supporting structure comprises two cross beams (2) and two upright posts (3), and adjustable feet (4) are arranged at the bottoms of the upright posts (3); Two ends of one beam (2) are detachably connected with the tops of the side walls of the two stand columns (3), two ends of the other beam (2) are detachably connected with the bottoms of the side walls of the two stand columns (3), a base plate (11) is detachably connected between the two stand columns (3), the two beams (2) are detachably connected with the base plate (11), the spraying dust suppression system is arranged on the beam (2), and the control system (10) and the gas monitoring system (9) are arranged on the stand columns (3).
  6. 6. The self-cleaning fence for construction sites based on spraying photocatalytic self-cleaning paint according to claim 5, wherein the edge of the base plate (11) is provided with reinforcing ribs (14), the edge of the base plate (11) is provided with a plurality of mounting holes (15), the mounting holes (15) are provided with connecting pieces, and the upright posts (3) and the cross beams (2) are detachably connected with the connecting pieces.
  7. 7. The self-cleaning building site enclosure based on spraying photocatalytic self-cleaning paint according to claim 5, characterized in that the spraying dust suppression system comprises: A micro mist spray pipe (5), wherein the micro mist spray pipe (5) is arranged on the cross beam (2) positioned at the top; the spray nozzles (6) are arranged, the spray nozzles (6) are arranged at the bottoms of the micro-mist spray pipes (5) at intervals; The water tank (7) is arranged on the cross beam (2) at the bottom, a filter, a submersible pump and a water level sensor are arranged in the water tank (7), the water tank (7) is communicated with the micro-mist spray pipe (5) through a pipeline (8), an electromagnetic valve is arranged on the pipeline (8), and the submersible pump, the water level sensor and the electromagnetic valve are electrically connected with the control system (10).
  8. 8. The self-cleaning fence for construction sites based on spraying photocatalytic self-cleaning coating according to claim 5, characterized in that the gas monitoring system (9) comprises a laser dust sensor, a nitrogen dioxide sensor, an ozone sensor and a multi-parameter air quality level indicator lamp; The laser dust sensor, the nitrogen dioxide sensor, the ozone sensor and the multiparameter air quality level indicator lamp are all installed on the upright post (3), and the laser dust sensor, the nitrogen dioxide sensor, the ozone sensor and the multiparameter air quality level indicator lamp are all electrically connected with the control system (10).
  9. 9. The self-cleaning fence for a construction site based on spraying photocatalytic self-cleaning paint according to claim 1, wherein the control system (10) is wirelessly transmitted to a cloud platform through a 4G/5G module.

Description

Building site self-cleaning fence based on spraying photocatalysis self-cleaning coating Technical Field The invention relates to the technical field of air pollution control, in particular to a building site self-cleaning fence based on spraying photocatalytic self-cleaning paint. Background The building site is used as a key link of urban construction and is also an important emission source of urban air pollution. During construction, activities such as earth excavation, material transportation, concrete placement, and vehicle machinery operation, can continuously generate and release a variety of pollutants. These contaminants encompass inhalable particulates (PM 10、PM2.5), nitrogen oxides (NOx, mainly derived from diesel engineering machinery), volatile organics (VOCs, from paint, solvents, binders), and ozone (O 3) generated by the secondary reaction of NOx and VOCs under light conditions. They have a serious impact on the air quality in the surrounding area of the worksite, thereby threatening the health of the residents. In the prior art, various technical and management measures have been developed and forced in the industry to control construction dust and pollution, however, the measures have a certain limitation in common. The traditional entity enclosure is usually made of color steel plates, metal plates or PVC plates, and the main purpose is to meet the requirements of safety isolation, shielding of sight and reduction of partial noise. In the aspect of environmental protection, the device can only play a weak role in blocking flying dust splashing of larger particles by means of physical entities, does not have active purification capability, cannot degrade gaseous pollutants adsorbed on the surface of the device or diffused through gaps above the device, can become a passive carrier of the pollutants, and has a single function. The spraying and sprinkling dust fall system is characterized in that a spray head is arranged at the top of the enclosure, in a tower crane or in a field, and water mist is sprayed to increase air and ground humidity so as to promote sedimentation of large-particle dust, so that the dust fall system is the most widely applied dust suppression means at present, but the defects of single treatment object, huge water resource consumption, short effect, possibility of causing secondary problems, misjudgment of optical principles and the like exist. The movable or large fixed active purifying equipment, such as fog gun trucks, large movable dust collectors and the like, can generate better dust settling effect at local moments, but has the problems of high purchase and operation cost, limited coverage range, dependence on manual operation and maintenance and the like, so that the popularization of the equipment on construction sites, particularly small and medium-sized construction sites, is limited. In the emerging photocatalytic materials, the nano titanium dioxide (TiO 2) photocatalytic technology can degrade various air pollutants, but is mainly applied to the fields of permanent building outer facades and the like, is difficult to combine with the temporary, detachable and weather-resistant and wear-resistant special application fields of the construction site enclosure, lacks a systematic solution, and has the purification efficiency limited by the contact efficiency. Therefore, a self-cleaning fence for a construction site based on spraying photocatalytic self-cleaning paint is provided. Disclosure of Invention The invention aims to provide a self-cleaning fence for a construction site based on spraying photocatalytic self-cleaning paint, which aims to solve or improve at least one of the technical problems. In order to achieve the purpose, the invention provides the scheme that the self-cleaning construction site enclosure based on the spraying of the photocatalytic self-cleaning coating comprises: A modular enclosure support structure; the self-cleaning surrounding baffle plate module comprises a substrate and a photocatalysis nanometer coating, wherein the substrate is detachably connected to the modularized surrounding baffle support structure, and the photocatalysis nanometer coating is fixed on the working surface of the substrate through a crystal embedding load process; The spray dust suppression system is arranged on the modularized enclosure supporting structure; The monitoring control mechanism comprises a control system and a gas monitoring system, the control system and the gas monitoring system are both arranged on the modularized enclosure supporting structure, and the gas monitoring system and the spraying dust suppression system are both electrically connected with the control system; The raw materials of the photocatalysis nano coating comprise a photo-induced super hydrophilic auxiliary agent and a main catalyst, wherein the main catalyst is any one or more of nano titanium dioxide, N and/or C doped nano titanium dioxide and noble metal loaded n