Spraying device and method for detecting wall material

Abstract

The invention discloses a spraying device and method for detecting a wall material. The spraying device comprises a crane slide rail, a water supply system, a spraying system and an automatic pH control system. The water supply system comprises a mechanical pump and a water supply pipeline, and the spraying system comprises a spraying pipe, a spraying cabin, a U-shaped bracket, a to-be-detected wall material, a sample holder and a liquid discharge pipe; the spraying device provided by the invention is simple to operate and is reasonably designed, a detection process is stable and reliable, a flow velocity and spraying time of a spraying liquid in the spraying device are adjustable; a pH value of the spraying liquid can be automatically measured, monitored and adjusted in real time throughan automatic pH control system; and under different acidity acid rain conditions, a process that the wall material is infiltrated and scoured by rainwater is simulated and the spraying liquid in the spraying device are circularly sprayed, the spraying liquid with different spraying time is tested till that contents of harmful substances in the spraying liquid is balanced, and a content change trend of the soluble harmful substances in the wall material can be evaluated.

Description

technical field [0001] The patent of the present invention relates to the field of wall material detection, in particular to a spraying device and method for simulating a rainfall environment and measuring the content of harmful substances that can be dissolved out such as heavy metals, anions, and organic matter in wall materials. Background technique [0002] Wall materials are a resource-consuming industry. Traditional wall materials are mainly solid clay sintered bricks, but resources such as clay are non-renewable. In recent years, the use of fly ash, coal gangue, construction waste, urban sludge, river silt, tailings, waste residue and other solid waste to produce wall materials is an important way to deal with solid waste in my country. However, these solid wastes contain a certain amount of soluble harmful substances. Therefore, it is necessary to determine the soluble harmful substances in the wall materials. [0003] At present, there are a series of industry sta...

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Problems solved by technology

[0003] At present, there are a series of industry standards for wall materials, such as JC239 "fly ash brick", JC422 "non-sintered garbage tailing brick", JC / T525 "slag brick", JC / T862 "fly ash concrete small hollow block" ", etc. are all requirements for the physical properties of a single wall material. There is no domestic standard for the determination of harmful substances in wall materials.

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