KR101757060B1

KR101757060B1 - Configure a blade made of a double-screw heat transfer body type evaporation drying system

Info

Publication number: KR101757060B1
Application number: KR1020150143907A
Authority: KR
Inventors: 김충량
Original assignee: 김충량
Priority date: 2015-10-15
Filing date: 2015-10-15
Publication date: 2017-07-26
Also published as: KR20170044340A

Abstract

According to the present invention,
An apparatus for collecting dissolved solids contained in wastewater by the supply of heat after the wastewater flows in from one side, the apparatus comprising: an upper and lower shaft tubes respectively formed above and below the moving body; The unit blades are connected to form a blade portion having a screw shape as a whole and the shaft portion is connected to the blade portion including the unit blades so that steam is supplied through the shaft portion, Characterized in that it comprises a solids chamber in which dissolved wastewater is evaporated and condensed and dissolved solids generated are discharged and received,
It is possible to simultaneously evaporate, concentrate and dry the wastewater in a single unit, thereby reducing facility cost due to the miniaturization of the apparatus, facilitating operation and maintenance of the facility, and securing promptness and reliability of the operation A simple configuration of the blade portion constituting the agitator provided inside the apparatus and steam supply to the inside of the agitator, and the flowability of the concentrated liquid can be improved by the agitating characteristic according to the rotation of the blade portion constituting the agitator, Which can prevent the scale from sticking to the inside when a scale is generated according to the size of the blade.

Description

[0001] The present invention relates to a double-screw heat transfer type evaporation drying system,

Provided is an apparatus for concentrating and drying various solutions. An apparatus for concentrating and drying various solutions is provided, wherein steam supplied into a vertical cylindrical body is supplied into a stirring body for stirring a solution contained in the cylindrical body, (TDS) is crystallized and precipitated at a high concentration during the stirring of the solution by the heat transmitted through the surface of the agitator and the agitation of the agitator, so that the dissolved solids (TDS) And an evaporator for evaporating and drying the evaporator.

Generally, one of the methods for treating wastewater is to concentrate dissolved solids contained in wastewater to a certain concentration through an evaporation concentrator, and then crystallize and separate or send it to a drying device to finally separate dissolved solids in the wastewater .

In the wastewater evaporation concentrator used in this wastewater treatment method, steam is supplied to the outside of the heat transfer tube where a plurality of small heat transfer tubes are mounted vertically, and the wastewater flows naturally along the inner wall from the upper portion of the heat transfer tube and flows down into a thin film, A small amount of wastewater is evaporated, and then the wastewater is condensed and discharged to a condenser. Concentrated wastewater is temporarily stored in the hopper and transferred to the upper portion by a circulation pump, thereby repeating evaporation and concentration.

In the case of a heat transfer tube, it is common that it has a tube shape or a plate shape. The heating of the solution through the heat exchanger having the shape of the tube or plate and the spraying of the heated solution are carried out, The pure water in the solution is discharged into the water vapor and discharged to the atmosphere or discharged through the separate condensation process to the water, and the dissolved solids contained in the solution are gradually condensed .

When the concentration of concentrated water is continuously maintained, the concentration of the concentrated liquid must be maintained constant, so that the effective evaporation effect can be maintained. If concentration of concentrated water is not controlled, if the concentration of concentrated water is increased due to excessive concentration, Crystals.

The precipitated crystals are gradually fixed to all portions contacting with the concentrated water in the circulation process of the concentrated water to form a scale. This causes the circulation of the concentrated water to be disturbed by such scale formation.

Particularly, when a scale is formed inside a pipe or a tube of a heat exchanger, it acts as a factor to greatly attenuate the heat transfer effect, and in severe cases, it may block the pipe and cause a circulation disorder.

Therefore, it is necessary to maintain a constant concentration concentration, and a separate evaporation drying apparatus may be required. In the case of such an evaporation drying apparatus, the evaporation efficiency is insufficient due to the limitation of the heat transfer area in general. The present invention expands the scale of the concentrate, and thus exposes the problem to the increase in the cost of the incinerator. As an alternative to this, the stirrer for concentrate flow is modified to increase the heat transfer area.

However, these schemes can act as a factor to increase the evaporation effect due to the increase of the heat transfer area. However, when the structure of the heat transfer portion of the internal stirrer is constituted by a combination of several objects, It is difficult to perform maintenance work, and the degree of scale fixation is so severe that frequent maintenance and cleaning work are required.

In addition, since the structure of the agitator itself is designed to match the function of the heater, it is impossible to prevent the flow of the concentrate from being pushed to the inner wall of the shell by the centrifugal force due to its structural characteristics, so that the scale is relatively fastened, There is a problem that the problem can not be solved.

Korean Patent Registration No. 10-0387030 (published on June 18, 2003)

Accordingly, it is an object of the present invention to solve the above-mentioned problems, and it is an object of the present invention to provide an apparatus and a method for reducing the cost of facilities, So that maintenance and the like can be facilitated.

In addition, the present invention can simplify the maintenance and cleaning of the blade portion constituting the agitator of the present invention, which is utilized as a heat transfer surface in supplying steam to the blade portion constituting the internal agitator of the apparatus, So as to prevent the scale from sticking to the inner wall of the moving body.

Further, according to the present invention, it is possible to discharge the solid material while discharging the precipitated solid material while the continuous operation is possible without stopping the batch operation or the operation of the equipment depending on the purpose, and the efficiency and reliability of the continuous operation can be improved There are other purposes for securing.

According to an aspect of the present invention,

An apparatus comprising a body for depositing dissolved solids contained in wastewater by the supply of heat after the wastewater has flowed in from one side,

The upper and lower shaft tubes formed above and below the body and the upper and lower shaft tubes connected to each other so that the unit blades are connected in a spiral shape to form a screw shape, and the shaft section and the blade section including unit blades are communicated, So that the steam is supplied,

And a solid chamber in which dissolved solids generated by evaporating and concentrating wastewater flowing into a body at a position eccentric to the lower part of the body are discharged and accommodated.

According to the present invention, it is possible to simultaneously evaporate, concentrate, and dry wastewater in a single unit, thereby reducing the facility cost due to the miniaturization of the apparatus, facilitating operation and maintenance of the facility, .

According to the present invention, not only the structure of the blade portion constituting the agitator provided inside the apparatus is simplified, but also the steam is supplied into the blade portion constituting the agitator, and the flowability of the concentrated liquid is improved It is possible to prevent the scale from sticking to the inside when the scale is generated due to stirring work and concentration.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a cross-
2 is a view showing a blade adopted in the present invention

It is to be understood that the specific structural or functional descriptions of embodiments of the present invention disclosed herein are only for the purpose of illustrating embodiments of the inventive concept, It is intended to include all changes, equivalents, or alternatives falling within the spirit and scope of the present invention, as various changes can be made and have various forms, and terms and words used in the specification and claims are to be understood to be either conventional The inventor of the present invention is not limited to the meaning of the present invention and the inventor can define the concept of the term appropriately in order to explain his invention in the best way. . Therefore, the embodiments described in the specification of the present invention and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. It should be understood that various equivalents and modifications are possible or possible.

Also, unless otherwise defined in the description of the present invention, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs I have. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the meaning of the context in the relevant art and, unless explicitly defined herein, are to be interpreted as ideal or overly formal Do not.

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

The present invention relates to a method and apparatus for concentrating a solution containing dissolved solids such as wastewater so as to simultaneously concentrate and discharge the concentrated dissolved solids while completely preventing the scale generated during the concentration of the solution from sticking to the inner wall of the apparatus .

As shown in FIG. 1, the present invention includes a cylindrical body 100, upper and lower axial tubes 200 and 210 mounted on upper and lower portions of the body 100, and a blade portion (not shown) disposed between the upper and lower axial tubes 200 and 210 300 and a solids chamber 400 eccentrically connected to the lower side of the body 100.

As shown in the drawing, the body 100 is formed of a cylindrical body, and the upper and lower axial pipes 200 and 210 are connected to the upper and lower ends, respectively, to allow the dissolved solid to be discharged downward after the wastewater is introduced and concentrated.

It is also possible to provide a steam outlet 110 at a position eccentric to the upper side of the moving body 100 and to provide a viewing window 130 at a suitable portion of the outer circumferential side of the side to enable confirmation of the concentration state of the wastewater contained in the moving body 100 And a connection pipe 120 is provided at a position eccentric to the bottom of the body 100 to be connected to the solids chamber 400.

The blade portion 300 is connected between the upper shaft tube 200 and the lower shaft tube 210. After the steam is supplied through the upper shaft tube 200 and then passed through the blade portion 300, 300 are condensed, and the generated condensed water is discharged to the outside through the lower shaft tube 210.

Meanwhile, the blade unit 300 has a structure in which unit blades 310 are continuously connected to each other to have a screw shape as shown in the figure, and each unit blade 310 is connected to each other.

The unit blades 310 are connected to each other and connected to each other. The unit blades 310 on the upper side connected to the lower end side of the upper shaft tube 200 are connected to each other to be connected to each other, 200 flows into the unitary blade 310 (i.e., the uppermost unitary blade) at the lower end of the upper shaft tube 200, and then the steam flows in the unit blades 310 in a spiral shape. The flow speed of the steam is lowered by the spiral flow path of the unit blade 310 and the heat exchange efficiency is increased so that the steam is sufficiently condensed while the steam passes through the blade portion 300, do.

A drive motor 230 is provided at a lower end of the lower shaft tube 210 and connected to the pulley 220 to provide a driving force, that is, a rotational force.

The upper shaft pipe 200 connected to the upper side of the blade unit 300 to rotate the lower shaft pipe 210 by the driving of the drive motor 230 to enable the overall rotation of the blade unit 300, The connecting portion between the upper side of the blade portion 300 and the upper side axial tube 200 is connected to the bearing so that the rotational force of the driving motor 230 is not transmitted to the upper axial tube 200 .

1, the position of the driving motor 230 may be arranged on the upper end side of the moving body 100, and the positioning of the driving motor 230 may be changed according to facilities of the facility will be.

For example, in FIG. 1, a driving motor 230 may be provided to transmit a driving force by using a power transmitting means such as a belt connected to a pulley 220 connected to the upper end of the upper shaft tube 200 and connected to the pulley 220 .

The lower shaft tube 210 extending to the lower end of the upper shaft tube 200 and the blade 300 and the lower end of the blade 300 is rotated in conjunction with the driving of the drive motor 230, (Not shown) connected to the upper end of the lower shaft pipe 210 and the conveying pipe (not shown) connected to the lower end of the lower shaft pipe 210 are not preferably rotated by the driving of the drive motor 230, A flange or the like connected by a screw or the like so as to prevent the transfer of the rotational force.

The wastewater flowing into the body 100 and the steam supplied through the upper shaft tube 200 pass through the unit blades 310 of the blade unit 300 and then flow to the lower shaft tube 210, The steam generated by the heat exchange between the steam and the wastewater is discharged to the outside through the steam outlet 110 provided on the upper surface of the moving body 100 and the condensed water condensed with steam is discharged to the outside through the lower shaft tube 210 Loses.

The solids chamber 400 is connected to a connection pipe 120 provided on a position eccentrically positioned toward the lower end of the body 100. The solid body chamber 400 is connected to the connection pipe 120, Exchanges heat with the supplied steam, and serves to evaporate the wastewater and to concentrate the wastewater, and then to concentrate the dissolved solids to be discharged to the outside.

The operating relationship of the present invention having the above-described configuration will be described.

First, wastewater is supplied into the body 100, and high-temperature steam is supplied through the upper shaft tube 200 connected to the upper side of the body 100.

The supplied high temperature steam flows along the upper shaft tube 200 and then is guided to the blade part 300 connected to the lower end of the upper shaft tube 200 and then flows into the unit blade 310 forming the blade part 300 .

The unit blades 310 are formed in a hollow shape in the interior of the unit blades 310. The supplied high temperature steam passes through the unit blades 310 and flows through the surface of the unit blades 310, Heat exchange occurs between the wafers in contact with the wing surfaces of the unit blades 310. The driving of the driving motor 230 rotates the blade unit 300 to exhibit the stirring effect.

The wastewater gradually changes phase to the gas phase and generates steam due to the stirring due to the rotation of the blade unit 300 and the heat exchange due to the surface contact with the wastewater through the wing surfaces of the unit blades 310 , And the wastewater is subjected to a concentration process in accordance with the generation of such steam.

The steam generated by the stirring of the blade unit 300 and the heat exchange due to the surface contact between the unit blades 310 is discharged to the outside through the steam outlet 110 formed at one side of the upper end of the body 100 The wastewater stored in the body 100 gradually drops into the solids chamber 400 side of the lower body of the body 100 and is collected and discharged to the outside.

It is preferable that a valve 410 is further provided between the solenoid chamber 400 and the connection pipe 120 of the moving body 100 so that it is possible to perform a precipitation operation of dissolved solids even during continuous operation.

The evaporation and concentration process of the wastewater can be continuously and efficiently performed by the blade unit 300 that maximizes the heat generating area of the steam while the steam is supplied. The continuous supply of wastewater and the continuous precipitation of dissolved solids So that continuous operation can be performed without stopping the operation.

In addition, since the apparatus of the present invention can work in a state where the heat transfer area is maximized, and the flow of the concentrated liquid rotates downward due to the agitating property of the rotation of the blade unit 300, Scale fixation to the inner wall can be suppressed, and the internal automatic cleaning effect of the moving body 100 can be exhibited, so that the working period of maintenance can be maximally extended.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, Various modifications and changes may be made.

Accordingly, it is to be understood that the technical idea of the present invention is to be understood by the following claims, and all equivalents or equivalents thereof fall within the technical scope of the present invention.

100; Body 110; Steam outlet
120; Connector 130; Sight window
200; An upper shaft tube 210; Lower shaft tube
220; Pulley 230; Drive motor
300; Blade portion 310; Unit blade
320; Hollow 400; Solids chamber
410; valve

Claims

1. An evaporative condensing and drying apparatus for forming a blade body having a screw shape inside a moving body for collecting dissolved solids contained in wastewater by supplying heat after the wastewater flows in from one side,
The blade unit is connected between upper and lower shaft tubes formed respectively above and below the moving body so that unit blades having a hollow shape inside are connected so that the overall shape of the blade unit is a screw shape so that the upper and lower axial tube and the blade unit including the unit blade are connected So that steam is supplied through the shaft tube,
And a solenoid chamber in which dissolved solids generated by evaporating and concentrating the wastewater flowing into the body at a position eccentric to the lower portion of the body are discharged and accommodated, wherein a valve is provided in a connection pipe connecting the solid chamber and the body, Wherein the blade is made of a double screw so as to be capable of discharging dissolved solids from the solids chamber.

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