CN110642353A

CN110642353A - Flocculation stirrer

Info

Publication number: CN110642353A
Application number: CN201911020046.9A
Authority: CN
Inventors: 凌明; 黄强
Original assignee: Jiaxing Port Industrial Sewage Treatment Co Ltd
Current assignee: Jiaxing Port Industrial Sewage Treatment Co Ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-01-03

Abstract

The invention discloses a flocculation stirrer which comprises a stirring barrel, wherein an inner barrel is arranged in the stirring barrel, the inner barrel is coaxial with the stirring barrel, the stirring barrel comprises a barrel cover, a stirring shaft is arranged on the barrel cover, the stirring shaft is driven by a motor to rotate, the stirring shaft comprises an upper stirring shaft and a lower stirring shaft, an outer stirring shaft is arranged on the upper stirring shaft, an outer fan blade generating an upward vortex is arranged on the outer stirring shaft, an inner fan blade generating a downward vortex is arranged on the lower stirring shaft, a filter screen is connected between the periphery of a lower barrel opening and the barrel bottom of the stirring barrel, a sludge discharge pipe vertically arranged downwards is arranged in the middle of the barrel bottom of the stirring barrel, and a drain pipe horizontally arranged is arranged at the lower part of the barrel. According to the flocculation stirrer, the flocs are filtered and intercepted in the stirring process, so that the influence of the flocs on flocculation is avoided, the sewage in the stirrer can form convection, the stirring dead angle is avoided, and the flocs are conveniently discharged and the stirrer is conveniently cleaned.

Description

Flocculation stirrer

Technical Field

The invention belongs to the technical field of stirrers, and particularly relates to a flocculation stirrer.

Background

Flocculation refers to the process of making suspended particles in water or liquid agglomerate or form flocs, thereby accelerating the coagulation of particles and achieving the purpose of solid-liquid separation, and this phenomenon or operation is called flocculation. Flocculation is generally carried out by adding a suitable flocculating agent, the effect of which is to adsorb the particles, to "bridge" the particles, and thus to promote agglomeration. The flocculation effect depends on the nature of the particles and the fluid mixing conditions. The addition of coagulant to water containing small particles can cause destabilization of the particles and start flocculation. Therefore, the sewage treatment by flocculation needs to be stirred. However, when the existing flocculation stirrer is used for treating sewage, along with the increase of flocs, the liquid fluidity is deteriorated, the stirring effect is seriously reduced, and the stirring dead angle is easy to appear in the stirrer, so that the sewage treatment effect is finally influenced.

Disclosure of Invention

In order to solve the technical problems, the invention adopts the technical scheme that: a flocculation stirrer comprises a stirring barrel, wherein an inner barrel is vertically arranged in the stirring barrel, the inner barrel is coaxial with the stirring barrel, the inner barrel comprises an upper barrel opening and a lower barrel opening, the height of the upper barrel opening is lower than that of the stirring barrel, the periphery of the lower barrel opening is fixedly connected with the barrel bottom of the stirring barrel through a plurality of support rods, the stirring barrel comprises a barrel cover, a stirring shaft is arranged on the barrel cover and is driven to rotate by a motor arranged on the outer side of the barrel cover, the stirring shaft comprises an upper stirring shaft positioned between the upper barrel opening and the barrel opening of the stirring barrel and a lower stirring shaft positioned in the inner barrel, a plurality of radial cross rods are connected on the upper stirring shaft, outer stirring shafts revolving around the stirring shafts are respectively fixed on the radial cross rods, outer blades are arranged on the outer stirring shafts, the outer blades generate upward eddy when revolving around the outer stirring shafts, inner blades are arranged on the lower stirring shafts, and generate downward eddy when the inner, be connected with the filter screen between the barrel head of lower nozzle and agitator all around, the barrel head middle part of agitator is equipped with the vertical mud pipe that sets up downwards, and the mud pipe surrounds in the filter screen, installs the valve on the mud pipe, and the barrel wall lower part of agitator is equipped with the drain pipe that the level set up, installs the valve on the drain pipe.

Preferably, the barrel cover is provided with a feed pipe communicated with the inside of the stirring barrel.

Preferably, the inner barrel is provided with a heater and a temperature sensor, and the heater and the temperature sensor are respectively connected with a controller arranged outside the stirring barrel.

Preferably, the bottom of the stirring barrel below the inner barrel is provided with a plurality of aerators, and the aerators are connected with compressed air through air pipes.

Preferably, a flushing nozzle facing the inner part of the inner cylinder is fixed on the inner side of the cylinder cover and is connected with a tap water pipe through a valve.

The invention has the beneficial effects that: according to the flocculation stirrer, the flocs are filtered and intercepted in the stirring process, so that the influence of the flocs on flocculation is avoided, the sewage in the stirrer can form convection, the stirring dead angle is avoided, and the flocs are conveniently discharged and the stirrer is conveniently cleaned.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in figure 1, a flocculation stirrer comprises a stirring barrel 1, an inner barrel 2 which is vertically arranged is arranged in the stirring barrel 1, the inner barrel 2 is coaxial with the stirring barrel 1, the inner barrel 2 comprises an upper barrel opening 3 and a lower barrel opening 4, the height of the upper barrel opening 3 is lower than that of the stirring barrel 1, the periphery of the lower barrel opening 4 is fixedly connected with a barrel bottom 6 of the stirring barrel 1 through a plurality of support rods 5, the stirring barrel 1 comprises a barrel cover 7, a stirring shaft 8 is arranged on the barrel cover 7, the stirring shaft 8 is driven to rotate by a motor 9 arranged on the outer side of the barrel cover 7, the stirring shaft 8 comprises an upper stirring shaft 10 which is arranged between the upper barrel opening 3 and the barrel opening of the stirring barrel 1 and a lower stirring shaft 11 which is arranged in the inner barrel 2, a plurality of radial cross rods 12 are connected on the upper stirring shaft 10, outer stirring shafts 13 which are wound around the stirring shaft 8 are respectively fixed on the radial cross, outer flabellum 14 produces ascending vortex when following outer (mixing) shaft 13 and revolve round (mixing) shaft 8, install interior flabellum 15 on the lower (mixing) shaft 11, interior flabellum 15 produces decurrent vortex when following the rotation of (mixing) shaft 8, be connected with filter screen 16 between the barrel head 6 of lower nozzle 4 all around and agitator 1, 6 middle parts of barrel head of agitator 1 are equipped with vertical mud pipe 17 that sets up downwards, mud pipe 17 surrounds in filter screen 16, install valve 18 on the mud pipe 17, the barrel wall lower part of agitator 1 is equipped with the drain pipe 19 of horizontal setting, install valve 20 on the drain pipe 19. The stirring shaft 8 rotates, the outer fan blades 14 enable sewage between the inner barrel 2 and the stirring barrel 1 to generate an upward vortex and flow into the inner barrel 2, the inner fan blades 15 enable the sewage in the inner barrel 2 to generate a downward vortex and penetrate through the filter screen 16 to enter between the inner barrel 2 and the stirring barrel 1, and therefore internal and external circulation of the sewage is achieved. The resulting flocks are trapped in the inner cylinder 2.

Further, a feeding pipe 21 communicated with the inside of the stirring barrel 1 is arranged on the barrel cover 7.

Further, a heater 22 and a temperature sensor are mounted on the inner barrel 2, and the heater 22 and the temperature sensor are respectively connected with a controller 23 arranged outside the stirring barrel 1. The controller 23 maintains the temperature in the mixing tank 1 stable by using the heater 22 according to the temperature fed back by the temperature sensor, thereby improving the flocculation effect.

Further, a plurality of aerators 24 are arranged on the bottom 6 of the stirring barrel 1 below the inner barrel 2, and the aerators 24 are connected with compressed air through air pipes 25. Aerator 24 generates certain bubbles to prevent flocs from blocking filter screen 16 at filter screen 16.

Further, a washing nozzle 26 facing the inside of the inner cylinder 2 is fixed on the inner side of the cylinder cover 7, and the washing nozzle 26 is connected with a tap water pipe through a valve. The flock can be removed from the bath by means of the flushing jets 26

It should be noted that the technical features of the heater 22, the temperature sensor, the controller 23, etc. related to the present patent application should be regarded as the prior art, the controller 23 utilizes the heater 22 to maintain the temperature in the mixing tank 1 stable according to the temperature fed back by the temperature sensor, the specific structure, the operation principle, the control mode and the spatial arrangement mode that may be related to of the technical features should be selected conventionally in the field, and should not be regarded as the invention point of the present patent, and the present patent is not further specifically described in detail.

Having described preferred embodiments of the present invention in detail, it is to be understood that modifications and variations may be resorted to without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A flocculation stirrer is characterized by comprising a stirring barrel, wherein an inner barrel is vertically arranged in the stirring barrel, the inner barrel is coaxial with the stirring barrel, the inner barrel comprises an upper barrel opening and a lower barrel opening, the height of the upper barrel opening is lower than that of the stirring barrel, the periphery of the lower barrel opening is fixedly connected with the barrel bottom of the stirring barrel through a plurality of support rods, the stirring barrel comprises a barrel cover, a stirring shaft is arranged on the barrel cover, the stirring shaft is driven to rotate by a motor arranged on the outer side of the barrel cover, the stirring shaft comprises an upper stirring shaft positioned between the upper barrel opening and the barrel opening of the stirring barrel and a lower stirring shaft positioned in the inner barrel, a plurality of radial cross rods are connected onto the upper stirring shaft, outer stirring shafts revolving around the stirring shafts are respectively fixed onto the radial cross rods, outer fan blades are arranged on the outer stirring shafts, the outer fan blades generate upward eddy currents when revolving around the outer stirring shafts, interior flabellum produces decurrent vortex when following the (mixing) shaft rotation, is connected with the filter screen between the barrel head of lower nozzle and agitator all around, and the barrel head middle part of agitator is equipped with the mud pipe of vertical downward setting, and the mud pipe surrounds in the filter screen, installs the valve on the mud pipe, and the barrel wall lower part of agitator is equipped with the drain pipe that the level set up, installs the valve on the drain pipe.

2. A flocculating and blending apparatus as claimed in claim 1, wherein said drum cover is provided with a feed pipe communicating with the inside of the blending drum.

3. A flocculation agitator as claimed in claim 1, wherein a heater and a temperature sensor are mounted on the inner cylinder, and the heater and the temperature sensor are respectively connected to a controller disposed outside the agitator.

4. A flocculation agitator as claimed in claim 3, wherein a plurality of aerators are mounted on the bottom of the agitator tank below the inner tank, the aerators being connected to compressed air via air pipes.

5. A flocculation agitator as claimed in claim 4, wherein a flush head is fixed to the inside of the tub cover and faces the inside of the inner tub, and the flush head is connected to a tap water pipe through a valve.