CN110642353A - A flocculation mixer - Google Patents

Abstract

The invention discloses a flocculation agitator, which comprises a stirring barrel, an inner barrel is installed in the stirring barrel, the inner barrel is coaxial with the stirring barrel, the stirring barrel includes a barrel cover, and a stirring shaft is installed on the barrel cover, and the stirring shaft is driven by a motor Driven to rotate, the stirring shaft includes an upper stirring shaft and a lower stirring shaft. An outer stirring shaft is installed on the upper stirring shaft. A filter screen is connected between the periphery of the lower cylinder mouth and the bottom of the mixing barrel, the middle of the bottom of the mixing barrel is provided with a mud discharge pipe arranged vertically downward, and the lower part of the barrel wall of the mixing barrel is provided with a horizontal Set of drain pipes. The flocculation agitator of the present invention filters and retains the flocculation during the stirring process, so as to avoid the influence of the flocculation on the flocculation effect. very convenient.

Description

A flocculation mixer

technical field

The invention belongs to the technical field of agitators, in particular to a flocculation agitator.

Background technique

Flocculation refers to the aggregation of suspended particles in water or liquid, or the formation of flocs, thereby accelerating the coagulation of particles and achieving the purpose of solid-liquid separation. This phenomenon or operation is called flocculation. Usually, flocculation is carried out by adding an appropriate flocculant, whose function is to adsorb the particles and "bridge" between the particles, thereby promoting agglomeration. The flocculation effect depends on the characteristics of the particles and the fluid mixing conditions. Adding a coagulant to water containing small particles can cause the particles to destabilize and start to flocculate. Therefore, it is necessary to stir when using flocculation to treat sewage. However, the existing flocculation agitator increases the size of the flocculation when treating sewage, the fluidity of the liquid becomes poor, the stirring effect is seriously reduced, and the stirring dead angle is likely to appear in the agitator, which ultimately affects the sewage treatment effect.

SUMMARY OF THE INVENTION

In order to solve the above-mentioned technical problems, the technical scheme adopted in the present invention is: a flocculation agitator, comprising a mixing barrel, a vertically arranged inner barrel is installed in the mixing barrel, the inner barrel is coaxial with the mixing barrel, and the inner barrel includes an upper The barrel mouth and the lower barrel mouth, the height of the upper barrel mouth is lower than the height of the barrel mouth of the mixing barrel, and the surrounding of the lower barrel mouth is fixedly connected to the barrel bottom of the mixing barrel through a number of support rods. The shaft is driven and rotated by a motor installed on the outside of the barrel cover. The stirring shaft includes an upper stirring shaft located between the upper barrel mouth and the barrel mouth of the stirring barrel, and a lower stirring shaft located in the inner barrel. Several radial transverse shafts are connected to the upper stirring shaft. The outer stirring shaft revolving around the stirring shaft is respectively fixed on the rod and the radial cross rod, and the outer fan blade is installed on the outer stirring shaft. An inner fan blade is installed, and the inner fan blade follows the rotation of the stirring shaft to generate a downward vortex. A filter screen is connected between the circumference of the lower cylinder mouth and the bottom of the mixing barrel. The middle of the bottom of the mixing barrel is provided with a vertical downward setting The mud discharge pipe is surrounded by a filter screen, and a valve is installed on the mud discharge pipe.

As a preferred option of the above technical solution, the barrel cover is provided with a feeding pipe that communicates with the inside of the stirring barrel.

As a preferred option of the above technical solution, a heater and a temperature sensor are installed on the inner cylinder, and the heater and the temperature sensor are respectively connected to a controller arranged outside the mixing tank.

As a preference of the above technical solution, a number of aerators are installed on the bottom of the mixing barrel below the inner cylinder, and the aerators are connected to compressed air through air pipes.

As a preferred option of the above technical solution, a flushing nozzle facing the inside of the inner cylinder is fixed on the inner side of the barrel cover, and the flushing nozzle is connected to a tap water pipe through a valve.

The beneficial effects of the present invention are as follows: the flocculation agitator of the present invention filters and retains the flocculation during the stirring process, so as to avoid the influence of the flocculation on the flocculation effect, the sewage in the agitator can form convection, avoid the occurrence of agitation dead angle, and the flocculation Draining and cleaning of the mixer are easy.

Description of drawings

Figure 1 is a schematic structural diagram of the present invention.

Detailed ways

The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts 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. The indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specific orientation or a specific orientation. construction and operation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

As shown in FIG. 1 , a flocculation agitator includes a mixing barrel 1, and a vertically arranged inner barrel 2 is installed in the mixing barrel 1. The inner barrel 2 is coaxial with the mixing barrel 1, and the inner barrel 2 includes an upper barrel opening 3 And the lower barrel mouth 4, the height of the upper barrel mouth 3 is lower than the height of the barrel mouth of the mixing barrel 1, and the circumference of the lower barrel mouth 4 is fixedly connected to the barrel bottom 6 of the mixing barrel 1 through a number of support rods 5, and the mixing barrel 1 includes a barrel cover 7, and the barrel A stirring shaft 8 is installed on the cover 7, and the stirring shaft 8 is driven and rotated by a motor 9 installed on the outside of the barrel cover 7. The stirring shaft 8 includes an upper stirring shaft 10 located between the upper barrel mouth 3 and the barrel mouth of the stirring barrel 1, and a The lower stirring shaft 11 in the inner cylinder 2 and the upper stirring shaft 10 are connected with a number of radial cross bars 12, and the radial cross bars 12 are respectively fixed with an outer stirring shaft 13 revolving around the stirring shaft 8, and the outer stirring shaft 13 is installed on the There is an outer fan blade 14, the outer fan blade 14 follows the outer stirring shaft 13 to generate an upward vortex when revolving around the stirring shaft 8, and the inner fan blade 15 is installed on the lower stirring shaft 11, and the inner fan blade 15 follows the rotation of the stirring shaft 8. The lower vortex is connected with a filter screen 16 between the circumference of the lower cylinder mouth 4 and the barrel bottom 6 of the mixing barrel 1. The middle part of the barrel bottom 6 of the mixing barrel 1 is provided with a vertically downwardly arranged mud discharge pipe 17. The mud discharge pipe 17 Surrounded by the filter screen 16 , a valve 18 is installed on the sludge discharge pipe 17 , a horizontal drain pipe 19 is installed on the lower part of the barrel wall of the mixing bucket 1 , and a valve 20 is installed on the drain pipe 19 . The stirring shaft 8 rotates, the outer fan blades 14 make the sewage between the inner cylinder 2 and the mixing barrel 1 generate an upward vortex and flow into the inner cylinder 2, and the inner fan blades 15 make the sewage in the inner cylinder 2 generate a downward vortex and pass through. After the filter screen 16 enters between the inner cylinder 2 and the mixing barrel 1, the internal and external circulation of sewage is realized. The resulting flocs are trapped in the inner barrel 2 .

Further, the barrel cover 7 is provided with a feeding pipe 21 which communicates with the inside of the mixing barrel 1 .

Further, a heater 22 and a temperature sensor are installed on the inner cylinder 2 , and the heater 22 and the temperature sensor are respectively connected to a controller 23 provided outside the mixing tank 1 . The controller 23 uses the heater 22 to maintain a stable temperature in the mixing tank 1 according to the temperature fed back by the temperature sensor, so as to improve the flocculation effect.

Further, a plurality of aerators 24 are installed on the bottom 6 of the mixing barrel 1 below the inner cylinder 2 , and the aerators 24 are connected to compressed air through an air pipe 25 . The aerator 24 generates a certain amount of air bubbles to prevent flocs from blocking the filter screen 16 at the filter screen 16 .

Further, a flushing nozzle 26 facing the inside of the inner cylinder 2 is fixed on the inner side of the barrel cover 7 , and the flushing nozzle 26 is connected to a tap water pipe through a valve. The flocs can be removed from the

It is worth mentioning that the technical features of the heater 22, the temperature sensor and the controller 23 involved in the patent application of the present invention should be regarded as the prior art. The internal temperature is stable, and the specific structure, working principle, and possibly related control methods and spatial layout methods of these technical features can be selected by conventional choices in the field, and should not be regarded as the invention point of the patent of the present invention. No further detailed description will be made.

The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the present invention without creative work. The technical solutions that the inventive concept can obtain through logical analysis, reasoning or limited experiments on the basis of the prior art shall all fall within the protection scope determined by the claims.

Claims (5)

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.

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