Industrial circulating water rapid sedimentation device

Abstract

The invention discloses an industrial circulating water rapid sedimentation device. The device comprises a sedimentation combination, a negative pressure fan combination, a circulating water temporarystorage tank and a control box; the sedimentation combination comprises a sedimentation frame combination, a sedimentation tank sealing cover, needle-gap dense tube devices and an air supplementing plate; the sedimentation frame combination consists of a supporting platform plate and a settling tank; welding holes are formed in the top side wall of the supporting platform plate; and one end of the sedimentation tank penetrates through welding holes and is welded to the supporting platform plate. The sedimentation combination provided by the invention is of a closed structure and is internallyprovided with the needle-gap dense tube devices in a sleeve mode, and a needle-gap circulating device on the needle-gap dense tube devices can discharge water at the lower part of the sedimentation tank into the surface of circulating water in the sedimentation tank through a conveying pipe, so that up-and-down flowing of the water can be realized, large particles (calcified objects, oxides, quicksand particles and the like) in the circulating water can be accelerated to enter converge covers in the bottom needle-gap circulating devices, and thus the rapid sedimentation function of large-particle impurities is realized.

Description

technical field [0001] The invention relates to the technical field of industrial sewage treatment, in particular to a rapid settling device for industrial circulating water. Background technique [0002] Because industrial circulating water contains a large amount of calcification, oxides, quicksand, dust, microbial bacteria and corrosive ions, these harmful substances usually cause harm to pipelines and equipment, so circulating water is usually purified by a purification treatment system before recycling In use, the current circulating water treatment system usually uses a filter membrane for purification, but there are still shortcomings in this method: 1. The circulating water contains a large amount of large particles, and the purification process uses the circulating water to filter and purify as a whole, which will reduce the purification efficiency; 2. Due to the existence of large particles of impurities, the filter membrane used for purification is easily blocked,...

AI Technical Summary

Problems solved by technology

[0002] Because industrial circulating water contains a large amount of calcification, oxides, quicksand, dust, microbial bacteria and corrosive ions, these harmful substances usually cause harm to pipelines and equipment, so circulating water is usually purified by a purification treatment system before recycling In use, the current circulating water treatment system usually uses a filter membrane for purification, but there are still shortcomings in this method: 1. The circulating water contains a large amount of large particles, and the purification process uses the circulating water to filter and purify as a whole, which will reduce the purification efficiency; 2. Due to the existence of large particles of impurities, the filter membrane used for purification is easily blocked, thereby reducing the service life of the purification membrane; 3. The circulating water contains a lot of heat, which needs to be reused after heat exchange, and the current heat exchange usually uses surface The air cooling method is used for cooling, and the cooling speed is slow. In order to reduce the work burden of the purifier, the present invention provides a rapid settling device for industrial circulating water

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