Low-shearing rotational flow air flotation device for removing suspended matters

A technology of swirling air flotation and suspended solids, which is applied in water/sewage treatment equipment, flotation water/sewage treatment, water/sewage treatment, etc. It can solve the problems of easy clogging and backwashing effect of filter elements, and inability to effectively withstand impact loads. Achieve the effect of convenient operation, stable operation and large processing capacity

Pending Publication Date: 2017-05-10
SUZHOU JUZHI TONGCHUANG ENVIRONMENTAL PROTECTION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, at present, this type of equipment has defects such as easy blockage of the filter el

Method used

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  • Low-shearing rotational flow air flotation device for removing suspended matters

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing, the specific implementation manner of this patent is described in further detail.

[0023] Such as figure 1 As shown, a low-shear swirling air flotation equipment for removing suspended solids includes a dosing system 1, an electromagnetic flowmeter 2, a helical double inlet 3, a microporous conical tube 4, an air compressor 5, and a gas flowmeter 6. Overflow pipe 7 and underflow pipe 8. The helical double inlet 3 and the swirl chamber 4 are connected as a whole by welding; the main body of the equipment is composed of a cylindrical section 4 and a conical section 5, which are connected by flanges and connected with bolts after butt joint; the cylindrical section 4 and the overflow The pipe 8 is connected by a flange and bolted after butt joint; the conical section 5 and the underflow pipe 9 are connected by a clamp and fastened by bolts after butt joint.

[0024] The interpolated deflector and the overflow pipe are conn...

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Abstract

The invention relates to a low-shearing rotational flow air flotation device for removing suspended matters. The device comprises an inflow coagulation system, a rotational flow chamber and a pressurizing air injection system. The sewage containing the suspended matters and a coagulation drug are tangentially pumped into the rotational flow chamber and are mixed along a same direction under the effect of weak centrifugal force; when the mixture moves to an air injection section, micro-bubbles and the suspended matters are thoroughly collided, adhered and formed into a flocculating constituent; and the flocculating constituent is upward discharged along with the overflow and the clean water phase is discharged from the bottom. According to the invention, the efficient separation of suspended matters and water is realized through a series of physical and chemical processes; the whole set of device is free from motion part, is high in processing capacity, is convenient in operation and is stable in running; the low-shearing rotational flow air flotation device for removing suspended matters can be popularized and applied to chemical engineering and environmental protection industries.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a low-shear swirling air flotation device for removing suspended matter. Background technique [0002] Petroleum cracking catalysts are crucial to the reformation, isomerization and disproportionation of aromatic hydrocarbons, and the treatment of their production wastewater has always been an important issue that plagues the petroleum industry. Although the preparation process of various catalysts is different, studies have shown that such wastewater generally contains suspended solids (SS), organic matter, ammonia nitrogen and salts and other main pollutants. [0003] The existence of high-concentration suspended solids in wastewater not only causes the loss of raw materials, but also seriously affects the effect of subsequent biochemical treatment. Due to the small particle size and light weight of the catalyst particles, the current treatment methods, such a...

Claims

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Application Information

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IPC IPC(8): C02F1/24C02F1/52C02F1/56
CPCC02F1/24C02F1/5245C02F1/56C02F2201/002
Inventor 金艳宋兴福黄伙唐波张建海
Owner SUZHOU JUZHI TONGCHUANG ENVIRONMENTAL PROTECTION TECH
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