CN100589881C - Air entraining float machine and air-float device having the same - Google Patents

Air entraining float machine and air-float device having the same Download PDF

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Publication number
CN100589881C
CN100589881C CN200610128091A CN200610128091A CN100589881C CN 100589881 C CN100589881 C CN 100589881C CN 200610128091 A CN200610128091 A CN 200610128091A CN 200610128091 A CN200610128091 A CN 200610128091A CN 100589881 C CN100589881 C CN 100589881C
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CN
China
Prior art keywords
induced
air
draft air
air float
hollow shaft
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Expired - Fee Related
Application number
CN200610128091A
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Chinese (zh)
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CN101134608A (en
Inventor
邵凯
孙召强
张翼飞
邵连兴
戴文强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BEIJING JIANGONG GROUP Co Ltd
Wuxi Jinyuan Entironment Protect Equipment Co Ltd
BEIJING JIANGONG JINYUAN ENTIRONMENT-FRIENDLY DEVELOPMENT Co Ltd
Original Assignee
BEIJING JIANGONG GROUP Co Ltd
Wuxi Jinyuan Entironment Protect Equipment Co Ltd
BEIJING JIANGONG JINYUAN ENTIRONMENT-FRIENDLY DEVELOPMENT Co Ltd
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Application filed by BEIJING JIANGONG GROUP Co Ltd, Wuxi Jinyuan Entironment Protect Equipment Co Ltd, BEIJING JIANGONG JINYUAN ENTIRONMENT-FRIENDLY DEVELOPMENT Co Ltd filed Critical BEIJING JIANGONG GROUP Co Ltd
Priority to CN200610128091A priority Critical patent/CN100589881C/en
Publication of CN101134608A publication Critical patent/CN101134608A/en
Application granted granted Critical
Publication of CN100589881C publication Critical patent/CN100589881C/en
Expired - Fee Related legal-status Critical Current
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Abstract

The present invention provides one kind of air-entraining air floating machine and one air-entraining air floating apparatus with the air-entraining air floating machine. The air-entraining air floating machine includes one frame, one submerged motor with one hollow shaft, one air dispersing vane wheel set in the lower end of the hollow shaft and with vanes and one inside cavity communicated to the hollow shaft, and one air pipe to introduce air from outside to the hollow shaft and the air dispersing vane wheel. The air-entraining air floating machine has simple structure, convenient operation, low maintenance cost, high reliability and high power transferring efficiency.

Description

Induced-draft air float machine and air-floating apparatus with this Induced-draft air float machine
Technical field
The air-floating apparatus that the present invention relates to a kind of air supporting machine and have this air supporting machine, particularly a kind of Induced-draft air float machine and air-floating apparatus with this Induced-draft air float machine.
Background technology
Air supporting is that a class feeds or produce a large amount of microbubbles in water, make air with the micro-bubble form of high degree of dispersion attached on the suspended particle, cause the state of density, utilize law of buoyancy that it is kept afloat, thereby realize the method for treating water of Separation of Solid and Liquid less than water.The air supporting mode can be divided into loose gas air supporting, electrofloatation, air-dissolving air-float, cavitation air flotation etc., and air supporting mode commonly used at present is pressurized dissolved air flotation and cavitation air flotation.Air-floating apparatus has characteristics such as small investment, floor space is little, automaticity is high, operational management is convenient than other solid-liquid separating equipment.Yet the air-floating apparatus of using exists certain shortcoming at present.
The pressurized dissolved air flotation device is that clear water is forced into 3~4MPA, add air simultaneously, make air dissolves in water, suddenly reduce to normal pressure then, the air that is dissolved in water is separated out from water with micro-bubble form (bubble diameter is about about 20~100 μ m), suspended particle in the water carried bubble through the water column, thereby realize that a solid liquid separates.This equipment can be widely used in all kinds of wastewater treatments, mud concentrates and reaches to water treatment.But equipment needs special pressure air-dissolving equipment, structure relative complex.
The cavitation air flotation device is the small-sized inflation section that raw sewerage is at first entered be equipped with the cavitation aerator.By the inflation section, flco fully mixes with microbubble with suspension and contacts sewage in the process that rises, owing to have density contrast between gas-solid mixture and the liquid, buoyancy vertically upward of generation takes solid suspension to the water surface.Compare with traditional pressure air-dissolving air-float, the cavitation air flotation system has following significant advantage: can air be distributed in the water with the minute bubbles form with plain mode, not need complex device; The unique design of return duct makes mud be difficult for being deposited at the bottom of the flotation tank; Motion and Awaiting Parts are few, operate very simple; Avoided the frequent jams phenomenon of release in the air-dissolving air-float; The equipment good integrity, easy for installation, operating cost is cheap; Be particularly suitable for the processing of profit.
Present cavitation air flotation device generally comprises the motor that is arranged on the flotation tank top, motor drives the gas disk (or impeller) that looses by hollow shaft, the hollow shaft inner chamber is an air duct, the gas impeller side of loosing has some air dispelling holes of evenly arranging, air dispelling hole is communicated with air duct, the intrinsic turbine that plays running with one in lower surface of the gas disk (or impeller) that looses.The gas impeller rotation because motor need drive loose by the hollow shaft that reaches 1.7 meters, extraneous air also needs to send into the gas impeller that looses by the hollow core portion in the hollow shaft, therefore, corresponding bearing arrangement need be set, and realizes transmission and supplies gas.In actual the use, because the existence of bearing arrangement, the grease of not only need annotating is at ordinary times safeguarded, also can influence the power of electric motor transmission efficiency, because the machining accuracy of axle restriction bearing is fragile, changes the frequency height simultaneously; Simultaneously, because the restriction of machining accuracy, this hollow major axis also can bring out system vibration, influences the system works effect; Most serious of all,, rotate at a high speed and drive in the process that diffusing gas impeller rotates at a high speed, be very easy to fracture, at this moment must quit work and change, caused material and temporal waste at it because this shaft length is very long and be hollow.
Summary of the invention
The objective of the invention is to solve the long problem of hollow shaft of motor in the existing Induced-draft air float machine, a kind of Induced-draft air float device that shortens the Induced-draft air float machine of generator hollow shaft and have this Induced-draft air float machine is provided.
For achieving the above object, the invention provides a kind of Induced-draft air float machine, comprising: frame; Submersible motor, this submersible motor are arranged on this frame and have hollow shaft; Diffusing gas impeller, this diffusing gas impeller is arranged at this hollow shaft lower end and has blade and internal chamber, is evenly equipped with air dispelling hole on this blade, and the hollow parts of this internal chamber and this hollow shaft communicates; Appendix, described appendix one end leads to space outerpace, and the hollow parts of the other end and this hollow shaft communicates, and be used for extraneous air is imported this hollow shaft, and then input should diffusing gas impeller.
Induced-draft air float machine with said structure, adopt efficiently the direct drives impeller of submersible motor to rotate at a high speed, shortened the length of motor rotary shaft greatly, reduced transmission link, improved power transfer efficiency, prolonged the service life of equipment, thoroughly solved because of bearing arrangement and have problems such as maintenance cost height, system's vibrations and the hollow major axis bring are easy to fracture, power transfer efficiency has improved 20~40%, and only needs the operate power of 3KW can carry out air supporting.
According to Induced-draft air float machine of the present invention, wherein, this submersible motor also comprises the vacuum chamber that is arranged at its lower end, the other end of this vacuum chamber and described appendix communicates also and the hollow parts of this hollow shaft communicates, and is used for the air capacity of described appendix input is regulated the vacuum section of this hollow shaft of back input.
Induced-draft air float machine with said structure, by vacuum chamber is set, can be easily fixing gas pipeline and the hollow shaft safety of appendix and rotation at a high speed is connected.
According to Induced-draft air float machine of the present invention, also comprise the frequency conversion electrical control device that is connected with this submersible motor, be used to regulate the power output and the rotating speed of this submersible motor.According to Induced-draft air float machine of the present invention, also comprise the air inlet ball valve that is arranged in the described appendix, be used to regulate the speed of input extraneous air, to regulate the quantity and the size of the described microbubble that is produced.Induced-draft air float machine with said structure can be according to different sewage treatment process, different sewage character, and by regulating the frequency conversion electrical control device regulating the rotating speed of this diffusing gas impeller, and then, the size and the quantity of further regulating the described microbubble that is produced; Be equipped with and adjust the air inlet ball valve, can regulate the speed of input extraneous air, to regulate the quantity and the size of the described microbubble that is produced.
The present invention also provides a kind of Induced-draft air float device, comprise flotation tank, sludge sump, carrier bar Slag Scraping Device, water level control apparatus etc., it also comprises: the Induced-draft air float machine space and the aforesaid Induced-draft air float machine that is arranged in this Induced-draft air float machine space that are arranged at the flotation tank front portion; The mud return line road that is connecting the sewage inlet that is arranged at the flotation tank front end respectively and be arranged at the flotation tank bottom is opened wide in this upper end, Induced-draft air float machine space.
Induced-draft air float device with said structure, whole device only are made up of two mechanical parts, and be simple and compact for structure, easy and simple to handle, and people's participation is few in the operating process.This Induced-draft air float device simplicity of design, matching is good, and for the civil engineering of system support is also few especially, investment significantly reduces.In addition, because the simple and integrality of system, it can be installed in ground, underground or eminence, and weak point consuming time is installed.
Description of drawings
Fig. 1 a is the schematic diagram according to Induced-draft air float machine of the present invention; Fig. 1 b is the diffusing gas impeller that is used for according to Induced-draft air float machine of the present invention;
Fig. 2 a is the front view according to Induced-draft air float device of the present invention; Fig. 2 b is the vertical view according to Induced-draft air float device of the present invention; Fig. 2 c is the left view according to Induced-draft air float device of the present invention.
The specific embodiment
Describe specific embodiments of the invention in detail below in conjunction with accompanying drawing.
See also Fig. 1 a, Fig. 1 a is the schematic diagram according to Induced-draft air float machine of the present invention.As shown in Figure 1a, Induced-draft air float machine 2 comprises: frame 21 is arranged at the submersible motor 22 on the frame 21, diffusing gas impeller 23 and appendix 24.Submersible motor 22 has hollow shaft 221 and is arranged at the vacuum chamber 222 of its underpart, and hollow shaft 221 passes vacuum chamber 222, and its part of passing vacuum chamber 222 is provided with the pore (not shown), is connected with the internal chamber of vacuum chamber 222.Hollow shaft 221 lower ends are connecting diffusing gas impeller 23, and the capacitor of its outlet and diffusing gas impeller 23 inside communicates; Shown in Fig. 1 b, be evenly equipped with the air dispelling hole (not shown) on the blade of the gas impeller 23 that looses.Appendix 24 1 ends lead to space outerpace, and the other end and vacuum chamber 222 are communicated with, be used for extraneous air is imported vacuum chamber 222, and then diffusing gas impeller 23 inside of hollow shaft 221 inputs by communicating with vacuum chamber 222.Be provided with air inlet ball valve 25 in the appendix 24, be used for the air capacity of importing the gas impeller 23 that looses is regulated.
Induced-draft air float machine 2 in the present embodiment also comprises the frequency conversion electrical control device 3 that is connected with submersible motor 22.Frequency conversion electrical control device 3 is used to regulate the power output of submersible motor 22, and then regulates the rotating speed of the gas impeller 23 that looses.
The course of work of the Induced-draft air float machine 2 of present embodiment is as follows:
Start submersible motor 22, the diffusing gas impeller 23 of driving produces negative pressuren zone around being rotated in it at a high speed, and then the vacuum chamber 222 that will be connected with diffusing gas impeller 23 inside is found time; Utilize appendix 24 with in the feeding of the air on the water surface vacuum chamber 222 under water, and then by the hollow shaft 221 of the two connection being sent into gas impeller 23 inside of loosing.Along with the high speed rotation of the gas impeller 23 that looses, inner air throws away from the air dispelling hole on the gas impeller 23 that looses, and microbubble promptly produces thereupon, and the spiral rising, until reaching the water surface.
In diffusing gas impeller 23 rotary courses, can be by regulating frequency conversion electrical control device 3, the power output of regulating submersible motor 22, and then the rotating speed of the diffusing gas impeller 23 of adjustment are to produce the microbubble of requirement and size according to the difference of water quality.Also can simultaneously or regulate air inlet ball valve 25 separately, the quantity and the size of microbubble are regulated.
Be provided with vacuum chamber 222 can be easily fixing gas pipeline; And hollow shaft 221 safety of appendix and at a high speed rotation are connected.But do not establish vacuum chamber 222, be connected by the hollow parts of movement transforming device with appendix 24 other ends and hollow shaft 221, gas impeller 23 inside of also the extraneous air input can being loose produce microbubble, realize goal of the invention of the present invention.
See also Fig. 2 a to 2c, Fig. 2 a is the front view according to Induced-draft air float device of the present invention; Fig. 2 b is the vertical view according to Induced-draft air float device of the present invention; Fig. 2 c is the left view according to Induced-draft air float device of the present invention.
Shown in Fig. 2 a to 2c, the Induced-draft air float device of first embodiment comprises, flotation tank 1, Induced-draft air float machine 2 etc.Wherein, flotation tank 1 comprises the sewage inlet 11 that is arranged at flotation tank 1 front end; The mud return line road 13 and the clear water that are arranged at flotation tank 1 bottom are collected pipeline 14; Be arranged at the carrier bar Slag Scraping Device 15 of rear end, flotation tank 1 top; Be arranged at water level control apparatus 16 in the clear water zone, clear water outlet 17, mud discharge pipe 18, sludge-tank 19 etc., also comprise the Induced-draft air float machine space 12 that is arranged at flotation tank 1 front portion, these 12 upper ends, Induced-draft air float machine space are opened wide, and are connecting sewage inlet 11 and mud return line road 13 respectively; Induced-draft air float machine 2 is arranged in the Induced-draft air float machine space 12.Frequency conversion electrical control device 3 is arranged at flotation tank 1 water inlet end.
The course of work that the air-floating apparatus of employing present embodiment is handled sewage is as follows:
1. start frequency conversion electrical control 3 control submersible motors 22, drive gas impeller 23 rotation at a high speed of loosing, around it, produce negative pressuren zone;
2. utilize appendix 24 that extraneous air A is fed submersible vacuum chamber 222, and then send into the gas impeller 23 that looses; The gas impeller 23 that looses rotates at a high speed, and the air that the air dispelling hole from the gas impeller 23 that looses sheds forms microbubble B.Microbubble B spiral rises, and forms inflation section C in Induced-draft air float machine space 12;
3. the good sewage D that will flocculate sends into flotation tank 1, and by inflation section C, solid suspension in the sewage and microbubble B wherein mix sewage in the process that rises; Along with microbubble B rises, take solid suspension to the water surface, form scum silica frost F;
4. utilize carrier bar Slag Scraping Device 15 that scum silica frost F is scraped into sludge-tank 19; Isolated clear water is entered subsequent treatment process by clear water outlet 17, and mud enters follow-up sludge treating system by mud discharge pipe 18, finishes dissolved air flotation;
5. the high speed of diffusing gas impeller 23 has produced negative pressure around being rotated in it, under the promotion of this negative pressure, the mud E of flotation tank 1 bottom is back in the Induced-draft air float machine space 12 and the D and the bubble B of the sewage that flocculated mix mutually by mud return line road 13, spiral rises.Can improve the removal efficient of suspension in the sewage by the adding of mud backflow.
Compare with existing Eddy concave air-floatation apparatus, adopt efficiently diving according to induced-draft air float device of the present invention Motor direct-drive impeller High Rotation Speed has reduced transmission link, has improved power transfer efficiency, prolongs The service life of equipment. Simultaneously, can also be by the size and number of simple structure realization to microbubble Adjusting.
Compare with existing Pressurized dissolved gas flotation device, although induced-draft air float device according to the present invention is in processing Not as existing Pressurized dissolved gas flotation device, the scope of application is also slightly narrow on the precision, but has obvious low energy Consumption, simple in structure, easy and simple to handle, be difficult for to stop up, be convenient to the characteristics such as maintenance, noise are little, security height, Be very suitable for containing a large amount oil and fat chemical Wastewater Pretreatment, be particularly suitable for petrochemical industry processing, meat packing row Already, dairy industry, leather industry etc.

Claims (5)

1. an Induced-draft air float machine comprises frame, it is characterized in that, this Induced-draft air float machine also comprises:
Submersible motor, this submersible motor are arranged on this frame and have hollow shaft;
Diffusing gas impeller, this diffusing gas impeller is arranged at this hollow shaft lower end and has blade and internal chamber, is evenly equipped with air dispelling hole on this blade, and the hollow parts of this internal chamber and this hollow shaft communicates;
Appendix, described appendix one end leads to space outerpace, and the hollow parts of the other end and this hollow shaft communicates, and be used for extraneous air is imported this hollow shaft, and then input should diffusing gas impeller.
2. Induced-draft air float machine as claimed in claim 1, it is characterized in that, this submersible motor also comprises the vacuum chamber that is arranged at its lower end, the other end of this vacuum chamber and described appendix communicate and and the hollow parts of this hollow shaft communicate, be used for fixing easily described appendix and the hollow shaft that described appendix and high speed are rotated be connected.
3. Induced-draft air float machine as claimed in claim 1, it is characterized in that, this Induced-draft air float machine also comprises the frequency conversion electrical control device that is connected with this submersible motor, and this frequency conversion electrical control device is used to regulate the power output of this submersible motor, and then regulates the rotating speed of this diffusing gas impeller.
4. Induced-draft air float machine as claimed in claim 1 is characterized in that, this Induced-draft air float machine also comprises the air inlet ball valve that is arranged in the described appendix, and this air inlet ball valve is used to regulate the speed of input extraneous air, to regulate the quantity and the size of the microbubble that is produced.
5. Induced-draft air float device, comprise flotation tank, sludge sump, carrier bar Slag Scraping Device, water level control apparatus and mud reflux, it is characterized in that, also comprise the Induced-draft air float machine space and the Induced-draft air float machine as claimed in claim 1 that are arranged at the flotation tank front portion; This upper end, Induced-draft air float machine space is opened wide, the mud return line road that is connecting the sewage inlet that is arranged at this flotation tank front end respectively and be arranged at this flotation tank bottom; This Induced-draft air float machine is arranged in this Induced-draft air float machine space.
CN200610128091A 2006-09-01 2006-09-01 Air entraining float machine and air-float device having the same Expired - Fee Related CN100589881C (en)

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CN200610128091A CN100589881C (en) 2006-09-01 2006-09-01 Air entraining float machine and air-float device having the same

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Application Number Priority Date Filing Date Title
CN200610128091A CN100589881C (en) 2006-09-01 2006-09-01 Air entraining float machine and air-float device having the same

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CN100589881C true CN100589881C (en) 2010-02-17

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Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI122475B (en) * 2010-09-29 2012-02-15 Outotec Oyj METHOD FOR USING A FLOATING MACHINE USED IN THE METALLURGICAL PROCESS AND FLAMING MACHINE
CN102557177A (en) * 2011-12-20 2012-07-11 东南大学 Impeller cutting type vortex air floatation device
CN103435119A (en) * 2013-08-16 2013-12-11 金凤 Sewage treatment air floatation device
CN105366755A (en) * 2015-12-15 2016-03-02 常州市启航机械制造有限公司 Impeller air-floatation equipment
TWI680105B (en) * 2019-01-10 2019-12-21 鍵順三菱股份有限公司 High-efficiency dissolved air floatation treatment equipment

Non-Patent Citations (2)

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Title
叶轮气浮式污水处理装置概述. 刘勇,杨春来.石油机械,第21卷第7期. 1993
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