KR101095872B1 - In-line mixer unit for rapid mixing - Google Patents

Abstract

PURPOSE: An inline mixing apparatus is provided to improve energy usage rate by reducing the consumption rate of an aggregating agent. CONSTITUTION: A housing unit(10) includes a motor(12). A coagulant inlet unit(15) is formed at the one side of the housing unit. A coagulant pipe conduit is formed at the inside of a seal chamber(20). A coagulant mixing unit(30) is installed at the motor. The coagulant mixing unit includes a coagulant spraying unit(34) and a mixing wing unit(36). The coagulant spraying unit includes a coagulant spraying connection hole(32) and coagulant spraying holes(35).

Description

In-line mixer unit for chemical high-speed mixing that is easy to form strong turbulence used in water treatment and water purification facilities

The present invention relates to a chemical mixing in-line mixer device located in a pipe between a sludge storage tank (concentration tank) and a dehydration (or concentration) facility of a water treatment and water purification facility, and more particularly, for high speed mixing developed in a conventional mechanical mixing system. In the in-line mixer, the impeller blades of the agitator blades are formed in the shape of wings that can form strong turbulence, so that the turbulent blades rotate at a speed of 1000 to 3000 rpm depending on the flow rate or concentration in the pipe where the sludge is transferred from the storage tank to the dehydration facility. The present invention relates to an inline mixer for chemical high speed mixing, which is easy to form strong turbulence used in water treatment and water purification facilities, by instantaneous high-speed mixing of flocculant and sludge to increase the mixing efficiency by 30% or more compared to the existing inline mixer.

In connection with sludge treatment in water treatment and water purification facilities, a mixing method of injecting and stirring a chemical (polymer coagulant) into dewatering, concentration, flocculation, and flotation tanks is used. Most conventional mixing apparatuses are mechanical mixers. The flocculation agent (hereinafter referred to as "coagulant") and sludge are stirred at low speed for 1 to 3 minutes in a mixing tank through a mixer, a mechanical device provided in the mixing tank, to induce floc formation. do.

However, such conventional admixtures have a certain degree of sedimentation required in the water treatment process, but at a low speed, some flocculants form a layer with sludge, that is, they are discharged in insufficient contact with the sludge, so that the amount of flocculant is high. There is a problem in that the treatment (mixing or stirring) efficiency is low. In addition, due to the increase of secondary pollution due to the over-injection of flocculant, problems such as increased power, increased sludge generation, reduced bioenergy generation and deteriorated effluent water quality in subsequent water treatment processes.

In recent years, therefore, an inline mixer has been provided as a high speed mixing device on the flow path between the sludge storage tank (or the concentration tank) and the dehydrator (or the concentration facility). The admixture has a rectangular coagulant injection port capable of injecting a coagulant. Through this, the coagulant is diffused into the pipe and instantaneously mixed with sludge to reduce the consumption of the coagulant and increase the treatment efficiency.

However, this improved in-line mixer also forms turbulent flow by simply opening / closing the pipe once every 0.01 ~ 0.03 seconds to increase processing efficiency, which increases the tack time of the processing process and is not only inefficient, but also the turbulent effect. It is incomplete and still has low processing efficiency.

Furthermore, according to various studies and literatures, the mixing by adsorption-charge neutralization takes place within a very short time of 10 ^-4 to 1 second due to the nature of the flocculating drug. Can be derived.

Accordingly, the applicant has devised a product in which the high speed mixing of the chemicals is more uniform and faster than the conventional inline mixer such as the present invention, and the chemical mixing is more uniformly accelerated in the sludge pipe.

The present invention has been made to solve the above problems, an object of the present invention is to form a strong turbulence in the configuration so that high-speed mixing of the chemical occurs more uniformly and faster, thereby to accelerate the chemical mixing in the sludge pipe It is to provide an inline mixer device for chemical high-speed mixing is easy to form a strong turbulence.

In order to achieve the above-mentioned object, the inline mixer for chemical high-speed mixing is easy to form strong turbulence used in water treatment and water purification facilities according to the present invention,

In the apparatus for admixing a flocculant drug to sludge,

It is installed in the pipe between the storage tank and the dehydration equipment,

A housing provided outside the pipe and having a built-in motor and having a coagulant inlet formed at one side thereof;

A seal chamber having one end coupled to the housing and connecting the inside and the outside of the pipe and having a coagulant conduit communicating with the coagulant inlet; And

A flocculant injection device rotatably installed in the motor of the housing and having a flocculant injection connection hole communicating with the flocculant pipe passage and a plurality of flocculant injection ports for discharging the flocculant, and a diffuse reflection wing surface formed between the flocculant injection ports And a flocculant admixture means positioned inside the pipe, which is composed of the stirring blades.

In addition, in the in-line mixer for chemical high-speed mixing is easy to form strong turbulence used in water treatment and water purification facilities according to the present invention, the flocculation conduit of the seal chamber is provided on the inner side surface of the seal chamber, the inside of the flocculation conduit As characterized in that the mechanical seal is provided in sequence.

In addition, in the in-line mixer for chemical high-speed mixing is easy to form strong turbulence used in water treatment and water purification facilities according to the present invention, the mechanical seal is characterized in that it is provided to surround the front end side of the flocculant injection means.

In addition, in the in-line mixer for chemical high-speed mixing is easy to form a strong turbulence used in water treatment and water purification facilities according to the present invention, the flocculant injection device is a hollow pipe shape, the flocculant injection connection hole of the flocculant injection means It is formed on the front end side, the plurality of flocculant injection sphere is characterized in that it is formed in the longitudinal direction in the longitudinal direction on the rear end side of the flocculant injection means.

In addition, in the high speed mixing chemical inline mixer device for easy strong turbulence formation used in water treatment and water purification facilities according to the present invention, the flocculant injection device is configured integrally with the rotating shaft connected to the motor or separately. It is characterized in that it is fixed to the shaft after being formed.

In addition, in the in-line mixer for chemical high-speed mixing is easy to form strong turbulence used in water treatment and water purification facilities according to the present invention, the stirring blade of the stirring blade is provided with a diffuse reflection wing surface on the upper and lower surfaces, the diffuse reflection wing surface Is formed with a plurality of grooves composed of different cutting planes having a slope in the range of 5 ° to 45 °, or

The blade edge of the stirring blades form a wave, characterized in that the cutting edge of the inclination inclination range of 5 ° to 45 ° is formed on the edge of the edge.

According to the present invention, high-speed mixing of chemicals occurs more uniformly and quickly than conventional inline mixers, and chemical mixing is further accelerated in sludge pipes, thereby increasing the mixing efficiency by 30% or more than conventional devices.

In addition, the consumption of the coagulant is further reduced compared to the existing in-line mixer, and the same effect can be expected with less power.

1 is a view briefly showing that the inline mixer for chemical high-speed mixing is easy to form a strong turbulence used in water treatment and water purification facilities according to the present invention,
Figure 2 is a simplified view showing the internal structure of the inline mixer for chemical high speed mixing easy to form strong turbulence used in water treatment and water purification facilities according to the present invention,
3 and 4 is a view showing an example of the shape of the stirring blade portion 36 of FIG.
5 is a view showing another embodiment of Figures 3 and 4,
Figure 6 (a), (b) is the energy of the fluid in the stirring blades when the inline mixer for high speed mixing chemicals easy to form strong turbulence used in water treatment and water purification facilities according to the present invention is installed in the pipe FIG. 2 shows that rapid turbulent flow is formed due to the formation of a flow of water and a collision of wavelengths formed by the flow.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the inline mixer device 100 for high-speed mixing chemicals easy to form strong turbulence used in the present water treatment and water purification facilities.

1 is a view briefly showing that an inline mixer for chemical high-speed mixing is easy to form a strong turbulence used in water treatment and water purification facilities according to the invention coupled to the pipe, Figure 2 is a water treatment and water purification facilities according to the present invention Figure 3 is a simplified view showing the internal structure of the inline mixer for chemical high-speed mixing is easy to form strong turbulence used, Figure 3, Figure 4 shows an example of the shape of the stirring blade 36 of Figure 2, Figure 5 3 and 4, FIG. 6 (a), (b) is an inline mixer for chemical high-speed mixing is easy to form strong turbulence used in water treatment and water purification facilities according to the present invention When installed in the pipe, it is shown that the rapid turbulence due to the flow formation of the energy of the fluid in the stirring blade portion and the collision of wavelengths formed by this flow is shown.

As shown in Figures 1 to 5, the inline mixer device 100 for high-speed mixing chemicals easy to form strong turbulence used in water treatment and water purification facilities according to the present invention is a sludge storage tank (not shown) and dehydration equipment (not shown) A housing 10 which is installed in the pipe 200 between the housings and is provided on the outside of the pipe and includes a motor 12 and a coagulant inlet 15 is formed at one side thereof; One end is coupled to the housing and connects the inside and the outside of the pipe, and a coagulant conduit 22 is provided on one side inner side surface in communication with the coagulant inlet 15, and the mechanical seal 24 is sequentially inside the coagulant line. Seal chamber 20 provided with; And a coagulant injection connection hole 32 rotatably installed at the motor of the housing 10 and communicating with the coagulant pipe line 22 at a front end side, and communicating with the coagulant injection connection hole at a rear end side. Coagulant located inside the pipe, consisting of a coagulant spraying device formed with a plurality of coagulant injection sphere (35) for discharging a coagulant, and formed in the longitudinal direction between the coagulant injection sphere 35, the stirring blade portion having a diffuse reflection wing surface Admixture means 30; is configured to include.

The in-line mixer device 100 for high speed mixing according to the present invention is installed in a pipe between a sludge storage tank installed at a lower portion and a dehydration facility installed at an upper portion, and the shape of the pipe used therein is preferably a “T” shaped pipe. . Of course, it is not limited to this.

As shown in FIG. 1, a housing in which a motor is built is located at a protruding connection portion of the “T” -shaped pipe, and an external power source (not shown) is connected to the motor to supply power. In addition, a coagulant inlet 15 connected to a coagulant supply tank (not shown) may be formed at one side of the housing.

Coagulant inlet 15 is formed on one side of the housing, it may be formed to have a predetermined size of space. The coagulant inlet 15 may be connected to a coagulant tank provided separately to the outside to receive a coagulant, or may hold a coagulant in the secured space.

In addition, the seal chamber 20 is an intermediate portion that is coupled to the protruding connection portion of the "T" -shaped pipe and connects the housing outside the pipe and the coagulant mixing means 30 described later inside the pipe, one end of which is coupled to the housing. In the seal chamber 20, the flocculant conduit 22 and the mechanical seal 24 are sequentially provided.

The coagulant conduit 22 is in communication with the coagulant inlet 15 and is a passage for transferring the coagulant introduced from the coagulant inlet to the coagulant injection connection hole 32 which will be described later, and on one inner side surface of the seal chamber 20. Is formed. Such a flocculant conduit 22 can also be used as a cooling flow path to prevent overheating of the mechanical seal 24 described later.

The mechanical seal 24 is for preventing the flocculation agent or sludge from flowing into the motor, and is provided on the inner side of the seal chamber 20 surrounding the front end side of the flocculant injection device 34 to be described later, and the mechanical seal 24 The flocculant conduit 22 is preferably disposed between the seal chamber 20 and the inner surface of the seal chamber 20.

This is to prevent the mechanical seal 24 from being overheated while the coagulant drug is transferred at a relatively low temperature of 10 to 20 ° C.

In addition, the flocculant mixing means 30 includes a flocculant spraying device (34) rotatably installed in the motor (12) of the housing (10) via the shaft (14) or integrally with the shaft; A coagulant injection connection hole 32 formed to communicate with the coagulant pipe passage on the front end side of the coagulant injection device 34, and formed in the longitudinal direction on the rear end side of the coagulant injection device 34, the coagulant injection connection hole A plurality of flocculant injection ports 35 in communication with 32; And it is formed in the longitudinal direction between the flocculant injection sphere 35, and is composed of a stirring wing portion 36 having a diffuse reflection wing surface, it is located inside the pipe 200. Here, the flocculant admixture means 30 rotates at a speed of 1000 to 3000 rpm according to the flow rate or concentration of the sludge and instantaneously mixes the flocculant with the sludge.

Here, the flocculant injection device 34 is a hollow pipe shape, the inside of the pipe serves as a supply path, the front end of the flocculant injection device 34 is connected to the shaft 14 of the motor or integrally formed with the shaft The coagulant injection connection hole 32 is connected to the motor and communicates with the coagulant pipe line 22 at a predetermined position at the front end side, and at the rear end side, two coagulants are formed to communicate with the inside of the pipe in the longitudinal direction. The injection hole 35 is formed in the rectangle of fixed dimension.

Here, the flocculant supplied to the flocculant injection coupling hole 32 is supplied to the flocculant injection port 35 through the hollow pipe of the flocculant injection apparatus 34. Here, the coagulant transfer from the coagulant injection connection hole 32 of the coagulant injection device 34 to the coagulant injection port 35 is by a coagulant pump not shown.

Stirring blade 36 is for mixing the drug and the sludge, as shown in Figure 3 and 4, the stirring blade portion of the flocculant mixing means 30 is formed in the longitudinal direction between the flocculant injection sphere (35) Diffuse reflection wing surface is formed on the upper and / or lower surface of the wing, the diffuse reflection wing surface is formed with a plurality of grooves of various shapes consisting of different cutting surface 37 having an inclination in the range of 5 ° to 45 °. By the groove of such a structure, the flocculant and the sludge which collide with each wing surface generate the diffuse reflection in different directions, and instantaneously form a strong turbulence, thereby increasing the mixing efficiency of the flocculant drug and the sludge.

In addition, Figure 5 shows another embodiment of the flocculant admixture means, wherein the diffuse reflection wing surface of the stirring blades of the flocculant admixture means (30 ') is a wave edge of the wings of a certain size wave and valleys, the edge edge is a constant angle It is a taper shape comprised of the cutting surface which has inclination of. At this time, the inclination inclination range of the cutting inclined surface is preferably in the range of 5 ° to 45 °.

In addition, it is preferable to include a sleeve 38 corresponding to an oil seal 28 provided inside the seal chamber 20 engaging portion at the seal chamber 20 engaging portion of the stirring blade 36. At this time, the sleeve 38 is mainly used that is plated to prevent breakage of the stirring blade (36).

According to the configuration of the present invention, as shown in Figure 1, the stirring blade 36 is preferably disposed in the direction perpendicular to the longitudinal direction of the pipe inside the pipe.

In addition, in the present invention, the flocculant injection sphere 35 and the stirring blade portion 36 is shown that only two, but is not limited to this, three, four, .. Of course it can be provided with a plurality.

6 (a) and 6 (b), when the inline mixer for chemical high speed mixing according to the present invention, which is easily formed with strong turbulence, is installed in a pipe, the energy of the fluid that strikes each wing surface of the stirring blade is The formation of flows with different forces and the rapid turbulence due to the collision of wavelengths formed by these flows are shown.

Hereinafter, referring to FIGS. 1 to 5, the operation and use method of an embodiment of the present invention will be described.

According to the present invention, when the in-line mixer device 100 for high speed mixing is vertically connected to the T-shaped pipe as shown in FIG. 1 and the power is connected to the motor, the turbulent flow of the coagulant mixing means connected to the shaft 14 while the motor rotates. The stirring blade unit 36 for driving is generated, and the coagulant is supplied through the coagulant inlet 15 of the housing.

The supplied flocculant is conveyed along the flocculant conduit line 22 provided in the seal chamber 20, and is supplied into the hollow pipe of the flocculant injection apparatus 34 through the flocculant injection connection hole 32. 34) is conveyed to the rectangular coagulant injection port 35 on the rear end side, and is then ejected and discharged thinly from the coagulant injection port 35 by the high-speed centrifugal rotational power of the coagulant injection device. At this time, the flocculant also serves to prevent overheating of the mechanical seal 24 while being transferred along the flocculant pipeline.

The flocculant injected through the flocculant injection hole 35 is moved to the edge edge of the upper and / or lower surface of the stirring blade 36 by centrifugal rotational force according to the high speed rotation, and then various inclined cutting surfaces formed on the upper and lower surfaces of the stirring blade 36. Diffusely reflected in a groove with At the same time, in the groove of the stirring blade portion 36 which rotates vertically on the sludge movement path, it forms a strong turbulent flow with the sludge that is diffusely reflected like the flocculant.

As such, when the in-line mixer 100 for chemical high speed mixing according to the present invention is used, turbulence is easier to form than the existing high speed mixing device, and the instantaneous mixing speed can be reacted more than 30% as a result. In addition to the drastic reduction in chemical dosage compared to the mixing device, the same mixing efficiency can be obtained even at a slow rpm of 10 to 20%. That is, by reducing the current load when the sludge strikes the stirring blade 36, it is possible to obtain the same miscibility with less power.

Although the present invention has been described with reference to the embodiments with reference to the drawings, this is only an example, those skilled in the art will understand that various modifications and equivalent embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

100: high speed mixing in-line mixer device 10: housing
12: motor 14: shaft
15: coagulant inlet 20: seal chamber
22: Aggregate conduit line 24: Mechanical seal
28: oil seal 30,30 ': coagulant admixture
32: coagulant injection connection hole 34: coagulant injection device
35: coagulant injection zone 36: stirring blade part
37,37 ': Cutting surface 38: Sleeve

Claims (6)

In the apparatus for admixing a flocculant drug to sludge,
It is installed in the pipe between the storage tank and the dehydration equipment,
A housing provided at an outside of the pipe and having a built-in motor and having a coagulant inlet formed at one side thereof;
A seal chamber having one end coupled to the housing and connecting the inside and the outside of the pipe, and having a coagulant conduit communicating with the coagulant inlet on an inner side surface thereof; And
A flocculant injection device rotatably installed in the motor of the housing and having a flocculant injection connection hole communicating with the flocculant pipe passage and a plurality of flocculant injection ports for ejecting and discharging the flocculant; It is configured to include; a flocculant admixture means, which is located inside the pipe, consisting of a stirring blade provided
The stirring blade portion of the flocculant admixture means is provided with a diffuse reflection wing surface on the upper and lower surfaces, the diffuse reflection wing surface is formed with a plurality of grooves composed of different cutting surfaces having an inclination in the range of 5 ° to 45 °, or
The blade edge of the stirring wing forms a wave, the cutting edge of the inclination inclination range of 5 ° to 45 ° is formed on the edge of the strong turbulence used in water treatment and water purification facilities easy to form high-speed chemical mixing inline Mixer device. The method of claim 1, wherein the flocculant admixture means
The high speed mixing agent for easy formation of strong turbulence used in water treatment and water purification facilities, characterized in that coupled to the motor of the housing via a shaft, or integrally formed with the shaft and rotatably installed in the motor of the housing. Inline mixer unit. The method of claim 1,
In-line mixer for chemical high-speed mixing is easy to form strong turbulence used in water treatment and water purification facility, characterized in that the mechanical seal is sequentially provided inside the flocculation conduit provided on the inner side of the seal chamber. The method of claim 3, wherein
The mechanical seal is an inline mixer for chemical high-speed mixing easy to form strong turbulence used in water treatment and water purification facilities, characterized in that provided to surround the front end side of the flocculant injection device. The method of claim 1,
The flocculant spraying device has a hollow pipe shape, wherein the flocculant injection connecting hole is formed at the front end side of the flocculant injection device, and the plurality of flocculant injection ports are formed in a rectangular shape in the longitudinal direction at the rear end side of the flocculant injection device. In-line mixer for chemical high-speed mixing is easy to form strong turbulence used in water treatment and water purification facilities. delete

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