CN106629957A

CN106629957A - Low-shearing rotational flow air flotation device for removing suspended matters

Info

Publication number: CN106629957A
Application number: CN201611164367.2A
Authority: CN
Inventors: 金艳; 宋兴福; 黄伙; 唐波; 张建海
Original assignee: Suzhou Environmental Protection Technology Co Ltd Of Ju Zhi Tontru
Current assignee: Suzhou Environmental Protection Technology Co Ltd Of Ju Zhi Tontru
Priority date: 2016-12-16
Filing date: 2016-12-16
Publication date: 2017-05-10

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

A kind of low sheraing cyclone air-flotation oil removal equipment

Technical field

The present invention relates to environmental technology field, and in particular to a kind of low sheraing cyclone air-flotation oil removal equipment.

Background technology

Catalyst of cracking petroleum is most important for aromatic hydrocarbon renormalization, isomerization and disproportionated reaction process, and its production is useless The major issue of petroleum industry is always perplexed in the process of water.Although the preparation flow of various catalyst is not quite similar, research Show that such waste water generally contains solid suspension（SS）, organic matter, the major pollutants such as ammonia nitrogen and salt.

The presence of Coal Gas Washing Cycling Water solid suspension not only causes significant loss, while having a strong impact on subsequent biochemical process Effect.Because catalyst granules granularity is little, light weight characteristic, current processing method, such as coagulating sedimentation and micro porous filtration are all There is respective defect.Chinese patent CN102050548A is proposed using coagulating kinetics MTO waste water.The method is only suitable for Low concentration wastewater after homogeneous is adjusted, and it is poor to the adaptability of water quality and quantity fluctuation.Chinese patent CN104478141A is carried The clear filtrate of no suspended substance is gone out to be obtained using micro porous filtration.But at present there is filter core easily blocking and backwash effect in this kind equipment The defect such as really poor, leads to not effective anti impulsion load.It is increasingly strict with national environmental standard, develop a kind of efficiently complete Isolation technics have become industrial hot spot.

The content of the invention

It is an object of the invention to provide a kind of sewage containing suspension that can be integrally formed eddy flow, gentle float assembly of flocculating Processing meanss.

The present invention is achieved through the following technical solutions above-mentioned purpose：

A kind of low sheraing cyclone air-flotation oil removal equipment, including water inlet coagulation system, eddy flow cavity and pressurization gas injection system, contain Suspension sewage and coagulated agent tangentially pump into eddy flow cavity, are mixed in the same direction under weak centrifugal action, when moving to note Gas section, microbubble fully collides adhesion and forms flco with suspension, and flco is discharged upwards with overflow, and clear water is discharged by underflow.

Further, the aluminium polychloride（PAC）And polyacrylamide（PAM）Medicine system passes through polyethylene（PE）It is molten The supporting SS304 paddle stirrers of solution tank realize the abundant dissolving of compound drug, subsequently enter polyethylene（PE）Medicine tin, medicament leads to Machinery Diaphragm Pump is crossed from polyethylene（PE）Medicine tin accurate flow control mixes with sewage.

Further, the eddy flow cavity by the symmetrical double feed inlet of helix, interpolation flow deflector, flow regulating barrels, micropore Taper Pipe, overflow Flow export and underflow outlet are constituted.

Further, the downward screw of guided liquid-flow of the symmetrical double feed inlet of the helix, reduces local turbulent fluctuation degree.

Further, the interpolation flow deflector tooth trace is the helix along cavity cylinder unwrapping, the evolute of helix with Helical angle between chamber axis is 20o.

Further, the Ratio control of the flow regulating barrels diameter and eddy flow cavity diameter is in 0.40 ~ 0.70.

Further, the Ratio control of the overflow outlet diameter and underflow outlet diameter is in 0.15 ~ 0.35.

Further, the pressurization gas injection system is made up of gas flowmeter, air compressor and taper gas injection cavity, fixed Amount air injects cone-shaped cavity by air compressor machine Jing micropores, forms evenly sized dispersion microbubble.

Further, the air compressor operating pressure is 0.70 ~ 0.80 Mpa.

Further, the taper gas injection cavity is the uniform cloth hole cavity in 30 ~ 50 μm of apertures.

Compared with prior art, the present invention has the advantages that：

The present invention realizes suspension and separates with the high efficiency of water by a series of physical and chemical process, complete equipment without motion Part, disposal ability are big, easy to operate and stable, can be applicable in chemical industry, environmental protection industry (epi).

Description of the drawings

Fig. 1 is the structural representation of the present invention.

In figure：

1. the micropore Taper Pipe of 2. electromagnetic flowmeter of medicine system, 3. helix import 4.

5. the underflow pipe of 6. gas flowmeter of air compressor, 7. overflow pipe 8..

Specific embodiment

Below in conjunction with the accompanying drawings, specific implementation of the patent mode is further described.

As shown in figure 1, a kind of low sheraing cyclone air-flotation oil removal equipment, it includes medicine system 1, electromagnetic flowmeter 2, Helix double feed inlet 3, micropore Taper Pipe 4, air compressor 5, gas flowmeter 6, overflow pipe 7 and underflow pipe 8.Helix double feed inlet 3 are connected as one with eddy flow cavity 4 by welding manner；Equipment body is made up of cylindrical section 4 and conical section 5, and both pass through method Orchid connection, to connecting after be connected with；Cylindrical section 4 is connected with overflow pipe 8 by flange, to connecting after be connected with；Circle Cone section 5 and underflow pipe 9 by clamp connection, to connecting after fastened with bolt.

Described interpolation flow deflector is integrated with overflow pipe by being welded to connect；Flow regulating barrels pass through 0o, 90o, 180o, 270o Four steel bars are welded in eddy flow cavity inner wall.

Described micropore cone material is porous Al alloy, and gas injection cavity is connected as one by flange with micropore Taper Pipe.

The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art Member, without departing from the inventive concept of the premise, can also make some improvements and modifications, and these improvements and modifications also should be regarded as In protection scope of the present invention.

Claims

1. a kind of low sheraing cyclone air-flotation oil removal equipment, including water inlet coagulation system, eddy flow cavity and pressurization gas injection system, Sewage containing suspension and coagulated agent tangentially pump into eddy flow cavity, are mixed in the same direction under weak centrifugal action, when moving to Gas injection section, microbubble fully collides adhesion and forms flco with suspension, and flco is discharged upwards with overflow, and clear water is arranged by underflow Go out.

2. low sheraing cyclone air-flotation oil removal equipment according to claim 1, it is characterised in that the aluminium polychloride （PAC）And polyacrylamide（PAM）Medicine system passes through polyethylene（PE）The supporting SS304 paddle stirrers of dissolving tank realize compounding The abundant dissolving of medicament, subsequently enters polyethylene（PE）Medicine tin, medicament is by Machinery Diaphragm Pump from polyethylene（PE）Medicine tin Accurate flow control mixes with sewage.

3. low sheraing cyclone air-flotation oil removal equipment according to claim 1, it is characterised in that the eddy flow cavity by The symmetrical double feed inlet of helix, interpolation flow deflector, flow regulating barrels, micropore Taper Pipe, overflow outlet and underflow outlet composition.

4. low sheraing cyclone air-flotation oil removal equipment according to claim 3, it is characterised in that the helix is symmetrical The downward screw of guided liquid-flow of double feed inlet, reduces local turbulent fluctuation degree.

5. low sheraing cyclone air-flotation oil removal equipment according to claim 3, it is characterised in that the interpolation flow deflector Tooth trace is the helix along cavity cylinder unwrapping, and the helical angle between the evolute and chamber axis of helix is 20o.

6. low sheraing cyclone air-flotation oil removal equipment according to claim 3, it is characterised in that the flow regulating barrels diameter With the Ratio control of eddy flow cavity diameter in 0.40 ~ 0.70.

7. low sheraing cyclone air-flotation oil removal equipment according to claim 3, it is characterised in that the overflow outlet is straight The Ratio control of footpath and underflow outlet diameter is in 0.15 ~ 0.35.

8. low sheraing cyclone air-flotation oil removal equipment according to claim 1, it is characterised in that the pressurization gas injection system System is made up of gas flowmeter, air compressor and taper gas injection cavity, and certain amount of air injects conical cavity by air compressor machine Jing micropores Body, forms evenly sized dispersion microbubble.

9. low sheraing cyclone air-flotation oil removal equipment according to claim 8, it is characterised in that the air compressor Operating pressure is 0.70 ~ 0.80 Mpa.

10. low sheraing cyclone air-flotation oil removal equipment according to claim 8, it is characterised in that the taper gas injection Cavity is the uniform cloth hole cavity in 30 ~ 50 μm of apertures.