KR100922198B1 - A water and cohesive agents mixing apparatus - Google Patents

Abstract

PURPOSE: A mixing device of water and a cohesive agent is provided to minimize energy consumption by supplying the cohesive agent continuously by rotation of a driving shaft, and to discharge the cohesive smoothly. CONSTITUTION: A mixing device includes mixing tank(10), an agitating vane(20), a driving part(30), a coagulant feed part(40), and an injection part(50). The mixing tank includes an inlet(11) of the water and an outlet(12). The agitating vane is arranged to the inside center of the of the mixing tank. The driving part includes a driving motor(31) and a driving shaft(32). The driving motor is combined on the top or the bottom of the mixing tank. The coagulant feed part supplies cohesive agents to the agitating vane. The injection part sprays the cohesive agent to the water, and combined on the agitating vane.

Description

A water and cohesive agents mixing apparatus

The present invention relates to a blender used in water purification equipment, and more particularly, to a blender capable of releasing a flocculant while maximizing the mixing efficiency of raw water and a flocculant without providing a separate transfer pump.

In general, the mixing device is used in mixing tanks and agitating tanks of water and sewage, and mixes and stirs chemicals such as a flocculant into raw water so that various foreign matters contained in the raw water are precipitated while being precipitated.

As shown in FIG. 5, the mixing device has an inlet 101 through which raw water flows into the lower side of the mixing tank 100, and an outlet 102 through which the raw water flows to the upper side of the mixing tank 200. The upper side of the mixing tank 100, the chemical supply unit consisting of a storage tank (T), a supply pump (P), and a chemical pipe and a nozzle to supply and inject a liquid coagulant into the mixing tank (100) 400 is formed, the inner blade of the mixing tank 100 is coupled to the drive unit 200 consisting of a drive motor 201 and a drive shaft 202 is rotated while stirring blade 300 to mix and stir the flocculant and raw water ) Is provided.

Accordingly, the raw water introduced into the lower side of the mixing tank is filled to the upper side of the mixing tank and the coagulant is introduced at the same time, and forced mixing of the raw water and the coagulant is performed by the rotation of the stirring blade, and the aggregate and the foreign matter whose volume and weight are increased. It sinks to the lower side of the sedimentation tank, and clean water from which foreign substances have been removed is discharged to the outside through an outlet formed in the upper portion of the sedimentation tank.

However, in the conventional mixing apparatus, as the nozzle for discharging the chemical into the mixing tank is disposed on the upper side of the mixing tank, the coagulant does not flow smoothly to the bottom of the mixing tank, so that the mixing is uneven. Finally, the flocculant dissipates the cohesive force of the foreign matter of raw water and cannot achieve satisfactory water purification effect.

In addition, since a separate pump or the like for supplying the flocculant to the mixing tank should be provided, power consumption is large and scale is generated inside the pipe to which the flocculant is supplied, thereby clogging the supply pipe of the flocculant.

Accordingly, the present invention has been made in order to solve the conventional problems as described above, the purpose is to maximize the mixing efficiency of the raw water and the coagulant without having a separate transfer pump to smoothly discharge the coagulant In providing a miscification apparatus.

In addition, an object of the present invention is to allow the coagulant supply unit to continuously and smoothly transport the coagulant in a simple configuration.

In addition, an object of the present invention is to prevent the twisting of the coagulant supply pipe and the coagulant discharge pipe connected to the housing while the operating space of the impeller for the forced transport of the coagulant is stably formed.

In addition, an object of the present invention is to allow the flocculant to be injected into the raw water by the force of the stirring blade rotates together with the injection pressure of the flocculant supply unit.

In addition, an object of the present invention is to allow the flocculant to be injected smoothly by the pressure difference in a simple configuration.

In addition, an object of the present invention is to prevent the scale phenomenon caused by the accumulation of chemicals in the internal supply pipe by the vacuum pressure generated by the pressure difference of the injection nozzle.

In order to achieve the above object, the present invention is the mixing tank formed with the inlet and outlet of the raw water, and the upper or lower portion of the mixing tank to rotate the stirring blade and the stirring blade disposed in the inner central portion of the mixing tank In the mixing unit is composed of a drive motor coupled to the drive shaft and a drive shaft for transmitting the driving force of the drive motor to the stirring blade, the foreign matter contained in the raw water agglomerated and settled while the flocculant and the raw water is stirred, the drive shaft is A coagulant supply unit forcibly transferring the coagulant by the rotating force to supply the coagulant to the stirring blade side; It is coupled to the stirring blade is rotated with the stirring blade while spraying the spraying the flocculant to the raw water; includes.

In addition, the flocculant supply unit; an impeller integrally coupled to the outer surface of the drive shaft, a housing surrounding the outer surface of the impeller to form a space for passing the flocculant, a flocculant supply pipe for supplying the flocculant to the housing, the housing And a coagulant discharge tube for supplying the coagulant discharged from the injection unit.

In addition, the housing is fixed to the outer side of the drive shaft, the coagulant supply pipe is connected to the fixed housing coupled to the drive shaft and the mechanical chamber, coupled to the lower side of the fixed housing, integrally coupled to the drive shaft It is characterized in that consisting of a rotating housing is rotated and the flocculant discharge pipe is connected.

In addition, the injector; is integrally coupled to the stirring blade is characterized in that the coagulant conveyed by the coagulant supply unit by the rotational force of the stirring blade is configured to be forcibly injected into the mixing tank.

In addition, the injection unit is connected to the coagulant supply unit and the nozzle is discharged to the coagulant is formed in a tubular shape disposed in a direction corresponding to the direction of rotation of the stirring blade, the orifice is coupled to the end of the nozzle exposed inside It is characterized by consisting of a tube.

Accordingly, the present invention provides a mixing device to smoothly discharge the flocculant while maximizing the mixing efficiency of the raw water and the flocculant without providing a separate transfer pump by the flocculant supply unit and the injection unit, by rotating the drive shaft It is possible to supply continuous coagulant to minimize energy consumption, and to supply continuous coagulant at all times, thereby minimizing the generation of scale inside various pipes to which the coagulant is supplied. The foreign matter aggregation effect of the flocculant is maximized.

In addition, the present invention allows the coagulant supply unit to continuously and smoothly transport the coagulant with a simple configuration of the impeller, the housing, the coagulant supply pipe and the coagulant discharge pipe, the number of parts is minimized, and the production is not only easy, but also breakdown during operation This has the effect that it is possible to supply a stable flocculant while being minimized.

In addition, the present invention is to ensure that the fixed housing and the rotating housing is provided so that the operating space of the impeller for forced transport of the coagulant is stably formed to prevent the twisting of the coagulant supply pipe and the coagulant discharge pipe connected to the housing, the coagulant supply pipe and the coagulant Damage due to twisting of the discharge pipe and uneven supply of the flocculant are prevented, and the stirring blade has the effect of continuously and stably rotating in one direction.

In addition, the present invention allows the coagulant is injected into the raw water by the force of the stirring blade is rotated in conjunction with the injection pressure of the coagulant supply portion, the injection portion is injected to a larger area, the mixing of the coagulant and the raw water is made more quickly and uniformly Will have an effect.

In addition, the present invention is a simple configuration of the nozzle and the orifice tube by the flocculant is injected smoothly by the pressure difference, while the production is made easily, the raw water flows smoothly into the orifice tube when the stirring blade is rotated to make the nozzle It has the effect that a stable injection of the flocculant through.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

1 is a longitudinal sectional view showing an embodiment of the present invention, Figure 2 is an enlarged view of the flocculant supply unit of the present invention, Figure 3 is a plan view showing an embodiment of the present invention, Figure 4 is an injection portion of the present invention As shown in the enlarged view, the present invention is installed in the water purification plant to mix the raw water and the coagulant to mix with each other, so that the various foreign substances contained in the raw water to be precipitated by the coagulant precipitated mixing tank 10 and the stirring blade (20) And it relates to a mixing device composed of a drive unit 30, in particular the coagulant is transferred to the central portion of the mixing tank 10 while the coagulant is transferred by the rotational power of the drive unit 30 without having a separate pump for transferring the coagulant It is intended to be injected directly.

The mixing tank 10 is to form a space in which the raw water and the coagulant is mixed to be formed in the form of a conventional cylindrical tank, the lower one side is to form an inlet (11) to allow the raw water to enter the mixing tank (10) On one side of the upper end, the outlet 12 is formed to discharge the raw water from which the foreign matter is removed by the flocculant overflows to the outside of the mixing tank 10.

The stirring blade 20 is for mixing the raw water and the coagulant in the mixing tank 10 to be agitated forcibly mixed, so that the rotating center is rotated while being corresponding to the center of the mixing tank 10, stirring blade 20 Vortex is generated inside the mixing tank 10 by the rotation of) to allow stirring of the raw water and the flocculant.

The drive unit 30 is to rotate the stirring blade 20, the drive motor 31 is fixed to the upper side of the mixing tank 10, the drive motor 31 and the stirring blade 20 By connecting the rotational power of the drive motor 31 to the drive shaft 32 to be connected to the stirring blade 20 while connecting the drive shaft 32 is rotated by the rotation of the drive motor 31 and finally the stirring blade Allow 20 to rotate.

The coagulant supply unit 40 is a forced transfer of the liquid coagulant stored in the separate tank (T) by the rotational power of the drive motor 31 described above, fixed integrally to the outer surface of the drive shaft (32) described above. A coagulant supply pipe 43 and a housing 42 for supplying a coagulant to the housing 42 and the housing 42 which form a space through which the impeller 41 and the coagulant pass while surrounding the outside of the impeller 41. It consists of a coagulant discharge pipe 44 for discharging the introduced coagulant.

The impeller 41 is integrally coupled to the drive shaft 32 and rotates together by the rotation of the drive shaft 32 to forcibly transfer the coagulant in the liquid state. To be formed.

The housing 42 forms a space in which the coagulant is forcibly transported while receiving the pressure generated by the rotation of the housing 42. The housing 42 is fixedly disposed outside the drive shaft 32, and the coagulant supply pipe 43 is connected thereto. A space for accommodating the impeller 41 is formed in the fixed housing 421 having the mechanical seal 422 and the fixed housing 421 such that the driving shaft 32 is rotatably coupled thereto. It is disposed on the lower side and integrally coupled to the above-described drive shaft 32 is rotated together when the drive shaft 32 is rotated to form a sealed space therein by coupling with the above-mentioned fixed housing 421 and the above coagulant discharge pipe It consists of a rotary housing 423 to which 44 is connected.

Accordingly, when the drive motor 31 is operated to rotate the stirring blade 20, the impeller 41 is rotated while the drive shaft 32 coupled thereto is rotated, by a separate tank by the rotation of the impeller 41 The coagulant stored in the (T) is forcibly moved into the housing 42 through the coagulant supply pipe 43, the coagulant introduced into the housing 42 again through the coagulant discharge pipe 44, the injection unit 50 described later As it is forcibly transferred to), it is possible to smoothly transfer the coagulant without providing a separate transfer pump.

In addition, as described above, the housing 42 surrounding the impeller 41 may be separately formed into the fixed housing 421 and the rotary housing 423, so that the coagulant supply pipe 43 may supply the coagulant in a fixed state at all times. While the coagulant discharge pipe 44 is rotated in response to the rotation of the stirring blade 20, the coagulant supply pipe 43 and the coagulant discharge pipe 44 can be prevented from being twisted and broken.

The injection unit 50 is rotated together with the stirring blade 20 to directly inject the flocculant to the central portion of the raw water stored in the mixing tank 10, while being formed as a conventional nozzle 51 having an open end Although the coagulant may be injected by the transfer pressure of the coagulant supply unit 40 described above, the coagulant may be forced by the force generated when the stirring blade 20 is rotated in order to have a stronger injection force. desirable.

In this case, the injection unit 50 is connected to the coagulant supply unit 40 described above is disposed in the direction corresponding to the rotation direction of the nozzle 51 and the stirring blade 20 fixed to the stirring blade 20 The cylindrical orifice tube 52 and the nozzle 51 is disposed inside the orifice tube 52, so that the raw water flows into the orifice tube 52 when the stirring blade 20 is rotated, and the nozzle ( The pressure drop is generated inside the orifice tube 52 to the outside of the 51, and at the same time, the coagulant is discharged with a strong force by the pressure difference.

In addition, the inner surface of the orifice tube 52 may be formed to form a curved surface in order to generate a more efficient pressure drop, as described above, the injection unit 50 is the nozzle 51 and the orifice tube 52 In this case, the flocculant is sprayed to a farther distance and mixed with the raw water more quickly.

1 is a longitudinal sectional view showing an embodiment of the present invention.

Figure 2 is an enlarged view of the flocculant supply unit of the present invention.

3 is a plan view showing an embodiment of the present invention.

Figure 4 is an enlarged view of the injection portion of the present invention.

Figure 5 is a longitudinal sectional view showing an example of a conventional mixing device.

※ Explanation of codes for main parts of drawing

10: mixing tank

   11 inlet 12 outlet

20: stirring blade

30: drive unit

   31: drive motor 32: drive shaft

40: flocculant supply unit

   41 impeller 42 housing

   421: fixed housing 422: mechanical seal

   423: rotary housing 43: flocculant supply pipe

   44: flocculant discharge pipe

50: injection unit

   51 nozzle 52 52 orifice tube

Claims (5)

The mixing tank 10 having the inlet 11 and the outlet 12 of the raw water, and the mixing blade to rotate the stirring blade 20 and the stirring blade 20 disposed in the inner central portion of the mixing tank 10 It consists of a drive unit (30) consisting of a drive motor (31) coupled to the top or bottom of the tank 10 and a drive shaft (32) for transmitting the driving force of the drive motor 31 to the stirring blade (20) In the admixture to agitate and sediment the foreign matter contained in the raw water while the raw water is stirred, A coagulant supply unit 40 forcibly transferring the coagulant by the force of the driving shaft 32 to supply the coagulant to the stirring blade 20 side; And a spraying unit (50) coupled to the stirring blade (20) to inject coagulant into the raw water while being rotated together with the stirring blade (20). The method of claim 1, The flocculant supply unit 40; Impeller 41 integrally coupled to the outer surface of the drive shaft 32, A housing 42 surrounding the outer surface of the impeller 41 to form a space through which the flocculant passes; Coagulant supply pipe 43 for supplying a coagulant to the housing 42, Coagulant discharge pipe 44 for supplying the coagulant discharged from the housing 42 to the injection unit 50, Admixture comprising a. The method of claim 2, The housing 42, A fixed housing 421 fixedly disposed at an outer side of the drive shaft 32 and connected to the coagulant supply pipe 43 and coupled by the drive shaft 32 and the mechanical chamber; The mixing unit is coupled to the lower side of the fixed housing (421), rotated integrally coupled to the drive shaft (32) and composed of a rotary housing (423) to which the flocculant discharge pipe (44) is connected. The method according to any one of claims 1 to 3, The injection unit 50; The mixing device, characterized in that configured to be integrally coupled to the stirring blade 20, the coagulant conveyed by the coagulant supply unit 40 by the rotational force of the stirring blade 20 is forced to be injected into the mixing tank (10). The method of claim 4, wherein The injection unit 50; A nozzle 51 connected with the coagulant supply unit 40 to discharge the coagulant; Mixing device, characterized in that formed in the tubular shape disposed in a direction corresponding to the rotation direction of the stirring blades 20, the orifice tube 52 is coupled to the end of the nozzle 51 exposed to the inside.

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