Positioned sampling and rapid detection device for chlorine ion content testing

Abstract

The invention discloses a positioned sampling and rapid detection device for chlorine ion content testing and solves the problems that powder is difficult to collect and splashes easily and the powdertretament process is more complex in the prior art. The device has the effects that drilling, filtration, extrusion and detection operation of powder can be realized, no powder splashes out during drilling and the device is safe and convenient to use. According to the technical scheme, the device comprises a telescopic powder taking device mounted at the front end of a drilling device, one end ofthe telescopic powder taking device is connected with an adsorption device, and a power device is mounted on one side of the adsorption device; the telescopic powder taking device is provided with alocking mechanism, and the powder taking depth is set and adjusted by the locking mechanism; the bottom of the telescopic powder taking device is detachably connected with a powder treatment device, avibrating filtration device is arranged in the powder tretament device, and a powder extrusion device is arranged below the vibrating filtration device; a detection bin is mounted on one side of thepowder extrusion device, and treated powder is detected by a chlorine ion probe placed in the detection bin.

Description

technical field [0001] The invention relates to the field of concrete detection, in particular to a positioning sampling and rapid detection device for chloride ion content testing. Background technique [0002] The corrosion of steel bars in in-service concrete structures is one of the main forms of durability damage to concrete structures. It is an electrochemical process and can be divided into two categories: one is the corrosion caused by concrete carbonation; the other is caused by the incorporation or intrusion of chloride ions. Among the factors affecting the durability of reinforced concrete bridges, the corrosion of steel bars caused by chloride ions ranks first. Therefore, it is very important to detect the chloride ion content of concrete in existing structures or components. At this stage, according to the specification requirements, the detection of concrete chloride ions in existing structures or components requires drilling to take powder, but the powder in t...

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Problems solved by technology

[0003] First, as required in the specification, the drilling powder should generally be collected in layers, with a depth of 3mm, 5mm, 10mm, 15mm, 20mm, etc., but the current equipment does not have a device that can ensure accurate positioning. Generally, the site is on the drill bit Mark an approximate size, which will cause certain errors in the later analysis;

[0004] Second, it is difficult to collect powder. When drilling on site, a large amount of powder is often spilled due to the poor sealing of simple devices, resulting in increased workload;

[0005] Thirdly, there are a lot of powder and sundries, and through drilling, it is often due to insufficient uniformity of the concrete, large particles of stones or impurities, resulting in inaccurate quality assurance, or re-screening in the later stage, resulting in increased workload ;

[0006] Fourth, there is a lot of dust when drilling for powder, which is harmful to both the environment and the on-site operators.

[0007] Moreover, after the powder is collected, additional grinding is required, and then the corresponding solution is added for detection, which is cumbersome to operate

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