CN2424828Y

CN2424828Y - Rotary-cutting type flotation machine

Info

Publication number: CN2424828Y
Application number: CN 00220139
Authority: CN
Inventors: 吕超; 凌跃成
Original assignee: YIXING CITY WATER INDUSTRY EQUIPMENT FACTORY
Current assignee: YIXING CITY WATER INDUSTRY EQUIPMENT FACTORY
Priority date: 2000-04-26
Filing date: 2000-04-26
Publication date: 2001-03-28
Anticipated expiration: 2010-04-26

Abstract

The utility model relates to a rotary-cutting flotation machine, particularly an impeller air flotation water purifier belonging to the technical field of wastewater treatment, and comprising a motor, an impeller and a separating chamber, wherein, the motor is fixed by a bracket above the separating chamber in which a bubble cutting chamber communicated with a water inlet pipe is arranged. The upper port of the bubble cutting chamber is communicated with water in the separating chamber. The motor is connected with the impeller through a sleeve type hollow drive shaft and plugged in the bubble cutting chamber. The impeller is composed of at least two paddle type opening vanes. The sleeve type hollow drive shaft arranged outside the separating chamber is provided with an air inlet. The utility model has an optimum structure, effectively reduces the power consumption for water treatment, generates ideal microbubbles, and greatly raises purifying efficiency. Thus, the utility model is widely suitable for treating industrial waste water containing oil and suspended matters, such as sewage in chemical industry, oil refining, paper making food processing and other industry, and also for floatation operation in metallurgy, building materials and other industry.

Description

The rotary-cutting type flotation device

The utility model relates to a kind of impeller air flotation purifier, belongs to technical field of waste water processing, also applicable to the flotation operation in the industries such as metallurgy, chemical industry, building.

The flotation water cleaning systems adopts the pressure air-dissolving method more at present, promptly under the pressure of (0.3-0.6) Mpa, sewage or clear water is made saturated dissolved gas water by pressue device, under normal pressure the form of dissolved gases with microbubble is discharged in flotation cell.This technology needs corollary equipments such as high-pressure hydraulic pump, dissolving, air compressor machine, release, the operation energy consumption height, and operational administrative is loaded down with trivial details, and releasing device is easily stopped up by sewage impurity.At the generating means of microbubble, jet flotation and turbine flotation have appearred in recent years, and wherein very fast with development of turbine flotation equipment and application.For example Chinese patent CN96227682 discloses a kind of " efficient flotation device ", it fixedly mounts a vertical axle sleeve by a support on flotation cell, a main shaft is installed in this axle sleeve, the upper end of this main shaft links to each other with engine through transmission mechanism, impeller of lower end fixed installation of main shaft, on the axle sleeve of impeller upside, be fixed with a cylinder mixing chamber that mouth is downward, the outer top of side at least of this mixing chamber is provided with slurry-feeding hole, also is installed with an air inlet pipe that communicates with atmosphere on this mixing chamber.This device structure is simple relatively and have a good flotation effect, but still have worth improvements, show between the main shaft of this flotation device and the engine to be provided with transmission mechanism,, all have certain power loss no matter be belt transmission, gear drive or chain gear transmission; The main shaft of this flotation device is a solid shafting and hollow sleeve in addition, air in the mixing chamber need rely on special air inlet pipe to provide, increased element of installation, in order to prevent that ore pulp from entering the slit of axle sleeve and main shaft, its bottom in axle sleeve is provided with oil sealing and water seal, it is one little numerous and diverse that device structure is advanced, and makes troubles for dismounting and maintenance; Next blade that is this device adopts can improve, and to cut into more tiny bubble, improves flotation effect.

The utility model is just in order to overcome above-mentioned deficiency, provide a kind of simple in structure, for ease of maintenaince, energy consumption is low, flotation effect obviously improves rotary-cutting type flotation device.

Improvements of the present utility model are to optimize structure, with shell type hollow drive shaft direct-coupled electrical machinery and impeller, both can save transmission mechanisms such as belt, gear, reduce power loss, can save special-purpose air inlet pipe again, on its basis the blade of impeller is made the propeller blade shape, be more conducive to the generation of microbubble.Specifically, the rotary-cutting type flotation device, comprise motor, impeller, separation chamber, motor is fixed by the support of top, separation chamber, it is characterized in that the separation chamber is built-in with a bubble cutting chamber that communicates with water inlet pipe, the upper port of described bubble cutting chamber is communicated with separation chamber's water, and motor connects impeller by the shell type hollow drive shaft and inserts the bubble cutting chamber, described impeller is made up of two oar formula perforate blades at least, places the shell type hollow drive shaft outside the separation chamber to be provided with air admission hole.Blade impeller under the drive of motor, be rotated at a high speed impeller around produce negative pressure, by the air admission hole on the shell type hollow drive shaft extraneous air is drawn onto in the bubble cutting chamber, bubble is cut into trickle bubble by the blade of the propeller blade shape of impeller in cutting chamber, desirable microbubble sticks on the suspension of waste water, the come-up thereby the density that makes suspension diminishes, from water, separate, reach the water purification purpose.

Be provided with frequency converter before the motor of the present utility model.Frequency converter is used for dynamically controlling motor, regulates according to the different disposal water yield, makes flotation be in effective running status, reaches efficient, purpose of energy saving.

Bubble cutting chamber of the present utility model bottom is provided with tree-shaped return duct, and described return duct communicates with separation chamber, water inlet pipe.Tree-shaped return duct can guarantee that the sediment that is difficult in the water separate also can carry out flotation, further improves clean-up effect.

The utility model adopts the transmission of motor direct connection just, optimized device structure, effectively reduce the water treatment energy consumption, impeller adopts the blade of propeller blade shape, the microbubble that produces is better, clean-up effect significantly improves, particularly before motor, add frequency converter, can dynamically regulate efficient, the energy-saving run of flotation device, this equipment is widely used in the trade effluent of oil-containing and suspension and handles, as the sewage of industries such as chemical industry, oil refining, papermaking, food processing, also applicable to the flotation operation in the industries such as metallurgy, building materials.

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a vertical view of the present utility model.

Further specify the utility model below in conjunction with embodiment.

Embodiment 1, the rotary-cutting type flotation device, its motor 2 is fixing by the support 8 of 9 tops, separation chamber, separation chamber 9 is built-in with a bubble cutting chamber 3 that communicates with water inlet pipe 7, the upper port of bubble cutting chamber 3 is communicated with separation chamber's 9 water, motor 2 connects the impeller of being made up of two arc perforate blades 5 by shell type hollow drive shaft 4 and inserts bubble cutting chamber 3, places separation chamber's 9 outer shell type hollow drive shafts 4 to be provided with air admission hole.

Embodiment 2, reference example 1, and impeller 5 is made of four arc perforate blades, and blade profile is the oar paddle-like in the shape of a spiral, is connected to a frequency converter 1 before the motor 2.

Embodiment 3, reference example 1, and impeller 5 is made of eight arc perforate blades, and blade profile is the oar paddle-like in the shape of a spiral, is connected to a frequency converter 1 before the motor 2, and bubble cutting chamber 3 bottoms also are provided with a tree-shaped return duct 6 and connect separation chamber 9 and water inlet pipe 7 respectively.

Claims

1. rotary-cutting type flotation device, comprise motor, impeller, separation chamber, motor is fixed by the support of top, separation chamber, it is characterized in that the separation chamber is built-in with a bubble cutting chamber that communicates with water inlet pipe, the upper port of described bubble cutting chamber is communicated with separation chamber's water, motor connects impeller by the shell type hollow drive shaft and inserts the bubble cutting chamber, and described impeller is made up of two oar formula perforate blades at least, places the shell type hollow drive shaft outside the separation chamber to be provided with air admission hole.

2. flotation device according to claim 1 is characterized in that being provided with frequency converter before the motor.

3. flotation device according to claim 1 and 2 is characterized in that bubble cutting chamber bottom is provided with tree-shaped return duct, and described return duct communicates with separation chamber, water inlet pipe.