KR100935819B1 - Horizontal type port screw decanter centrifugal - Google Patents

Abstract

PURPOSE: A horizontal port screw centrifuge is provided to maximize centrifugal force to the sludge, and to maximize separation efficiency by controlling liquid discharging energy and controlling power. CONSTITUTION: A horizontal port screw centrifuge includes the following: an outer case(100) with a water vent(110) and a solid vent(120); a rotary bowl(200) forming a water outlet(210) and a solid outlet(220); a rotary shaft(300) inserted into the rotary bowl; a spiral plate(310) formed on an outer circumference according to a shaft of the rotary shaft; and a sedimentation drainage member(500) formed on the circumference of the rotary shaft.

Description

Horizontal Port Screw Centrifuge {HORIZONTAL TYPE PORT SCREW DECANTER CENTRIFUGAL}

The present invention relates to a horizontal pot screw centrifuge, and more particularly, to a horizontal pot screw centrifuge for separating the liquid supernatant and solid solids contained in the sludge with high efficiency.

In general, a horizontal centrifugal separator for condensation and dewatering of waste water or water and sewage sludge is installed with a screw conveyor inside the rotating bowl, and the rotating bowl and the screw conveyor are assembled concentrically so that the rotating bowl and the screw conveyor are slightly rotated. It is configured to rotate at high speed in the same direction with a difference.

At this time, when the sludge introduced into the shaft center hole pipe of the screw conveyor is introduced into the rotating bowl through the input distribution discharge port formed in the center of the shaft, the heavy solids settle to the inner surface of the rotating bowl due to the difference in specific gravity. Condensed and dehydrated while being transferred to the cone of the rotating bowl by the plate spiral of the discharged to the outside through the solid outlet of the cone of the bowl, and separated into a horizontal portion opposite the rotating bowl cone, the supernatant in the direction of the centripetal force of the axis center of the screw conveyor As it rises, it rotates along the spiral of the screw by centrifugal consolidation and is continuously discharged into the dam flange olympus hole of the supernatant outlet.

In particular, some numbers of Korean Patent Application Publication No. 2000-0064430 having a spiral baffle mounted on one side of a screw conveyor cone, and Korean Patent Registration No. 10-0407896 of another type of rotary disk-shaped partitions and pressing spiral plates Equilibrium centrifuges have been provided to achieve each specific purpose.

Conventional horizontal centrifuges as described above, when sludge is introduced into the support shaft center hole of the screw conveyor and is introduced into the rotating bowl through the sludge dispersing hole configured inside the shaft, solids settle to the inner wall of the rotating bowl due to the specific gravity difference. It is separated while being transported along the plate spiral of the screw conveyor and discharged to the outside through the solids outlet through the dehydration aid of the rotating bowl cone. As it rotates along a screw conveyor plate consisting of two dogs, it is continuously discharged into a large-diameter weir with a separator outlet.

However, as the conventional horizontal centrifuge is discharged while the separated supernatant is rotated along the screw plate spiral of several tens of meters, it cannot be discharged to the discharge port quickly, so that the sludge interface rises and carry over occurs. In the case of mixed fresh sludge, the reduction of residence time and the wash out of the settling sludge decrease the recovery rate and increase the discharged solids moisture content, thereby reducing the treatment efficiency of the separator. In addition, increasing the rotational speed of the rotating bowl to increase the centrifugal force on the injected sludge causes the pressure of the consolidation force applied to the treated water to rise rapidly in proportion to the square of the centrifugal distance, resulting in noise, vibration, machine life and power consumption. There is a problem.

In order to improve the performance of the horizontal centrifuge, there are methods of increasing the centrifugal force and increasing the diameter of the rotating bowl. However, the above method has an uneconomical problem due to an increase in manufacturing cost and power consumption and environmental conditions for installation. . Therefore, there is a need for improvement.

The present invention has been made in order to improve the problems described above, applying the most centrifugal force to the sludge with a suitable rotational bore diameter and a small number of revolutions in the sludge properties, solids on the port screw conveyor shaft so that the discharge path for the solids and the supernatant is distinguished It is an object of the present invention to provide a horizontal pot screw centrifuge for lowering cake discharge and increasing solids recovery rate by forming a compression discharge member, a sedimentation drainage member and a supernatant discharge passage.

Horizontal port screw centrifugal separator according to the present invention: an outer case having a supernatant water outlet and a solid water outlet, a supernatant water outlet connected to the upper water outlet and a solid water outlet connected to the solid outlet and inclined in the direction of the supernatant outlet A rotating bowl which is rotatably inserted into the rotating bowl to guide the supernatant water separated from the sludge by centrifugal force in the direction of the supernatant discharge port, and is rotatably axially inserted into the rotating bowl and discharged from the inside through the sludge discharge port by centrifugal force. In order to forcibly transport the solids separated from the sludge in the direction of the solid discharge port, a rotary shaft having a spiral plate formed on the circumferential surface along the axial direction, and a flow path of the upper water flowing through the plate through the axial direction of the rotary shaft.And a sediment drainage member to secure the supernatant discharge passage, and a sedimentation drain member formed on the circumferential surface along the axial direction of the rotary shaft to induce sedimentation of the fine solids contained in the supernatant.

The rotating shaft is electrically connected to the vehicle speed control unit so as to be differentially rotated in the same direction as the rotating bowl, and the upper discharge outlet forms a dam dam member in the center direction at the bottom of the rotating bowl to store the upper water throughout the floor. .

The rotating shaft is divided into a horizontal portion of the same diameter and the circumferential surface is divided into a cone portion gradually decreasing in diameter in the direction of the solid discharge port, the edge of the cone portion connected to the horizontal portion is provided with a solid material compression discharge member for the rotation It is desirable to be able to adjust the interval with the bowl inner surface.

Preferably, the solid compression discharge member is composed of a plurality of different diameters and is selectively detachably coupled to one side of the cone portion.

As described above, the horizontal port screw centrifuge according to the present invention applies the maximum centrifugal force to the rotating bowl with an appropriate rotating bowl size and a low rotational speed corresponding to the sludge treatment property, and has a top discharge passage on the screw conveyor plate. The discharge paths for the solids and the supernatant can be separated.

The present invention is provided with a sedimentation drainage member to guide sedimentation of the small solids flowing to the supernatant and the supernatant discharge side to the inner wall of the rotating bowl.

The present invention is provided with a solid material compression discharge member on one side of the conveyor shaft cone portion to be adjustable so as to adjust the inner wall spacing of the rotating bowl can be separated and settled solids are transported to the cone along the screw conveyor plate spiral to be compressed and discharged.

The present invention forms a dam member at the outlet of the supernatant water so that the centrifugal pressure action is transmitted between the space between the solid compaction discharge member and the inner wall of the rotating bowl, thereby increasing the compaction force of the solid and reducing the supernatant discharge energy and the differential control power. It can be automatically controlled by the vehicle speed control unit to maximize the separation efficiency.

Hereinafter, with reference to the accompanying drawings will be described an embodiment of a horizontal port screw centrifuge according to the present invention. In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described below are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, the definitions of these terms should be made based on the contents throughout the specification.

1 is a cross-sectional view of a horizontal port screw centrifuge according to an embodiment of the present invention, Figure 2 is a partial cross-sectional view of a horizontal port screw centrifuge according to an embodiment of the present invention.

Figure 3 is a perspective view of the port screw conveyor of the horizontal port screw centrifuge according to an embodiment of the present invention, Figure 4 is a front view of the port screw conveyor of the horizontal port screw centrifuge according to an embodiment of the present invention.

5 is a system diagram of a control unit of the horizontal port screw centrifuge according to an embodiment of the present invention, Figure 6 is a controller operation graph of the vehicle speed control unit of the horizontal port screw centrifuge according to an embodiment of the present invention.

1 to 4, the horizontal port screw centrifuge according to an embodiment of the present invention, the outer case 100, the rotating bowl 200, the rotating shaft 300, the upper water discharge passage 400, sedimentation It includes a drain member 500 and a solid material compression discharge member 600.

The outer case 100 forms a shape of the centrifuge separating the solids and the supernatant from the sludge supplied using the centrifugal force, and forms the supernatant outlet 110 and the solid water outlet 120.

In particular, the outer case 100 is formed to absorb vibration by providing a dustproof port 130 in a portion in contact with the ground. The anti-vibration port 130 can be variously applied, such as anti-vibration rubber, and is fixed to the outer case 100 by various methods such as bolting.

In addition, the outer case 100 may be transformed into various shapes and various materials.

At this time, the supernatant outlet 110 and the solid outlet 120 is preferably formed to be separated from each other.

Thus, the outer case 100 forms a supernatant outlet 110 at one edge, and forms a solid outlet 120 at the other edge.

Here, the supernatant outlet 110 serves to discharge the supernatant, and the solid outlet 120 serves to discharge the solids.

Therefore, the supernatant outlet 110 and the solid outlet 120 are preferably formed at the lower side of the outer case 100 so as to induce a natural fall of the supernatant and the solid by gravity.

On the other hand, the rotary bowl (rotary bowl, 200) is inserted into the outer case 100 is formed to be rotatable.

At this time, the rotating bowl 200 supports the large diameter shaft 241 to the outer case 100 rotatably on one side for the role of the rotation support shaft, the small diameter shaft 242 on the other side can be rotated to the outer case 100 Support.

The large diameter shaft 241 and the small diameter shaft 242 are each formed with a bearing 244. The bearing 244 serves to enable smooth rotation of the rotating bowl 200 by minimizing friction between the large diameter shaft 241 and the outer case 100 and the small diameter shaft 242 and the outer case 100.

In addition, the small diameter shaft 242 is equipped with a drive pulley 245 for transmitting the rotational force to the rotating bowl (200). In addition, the gearbox 247 is assembled to the large diameter shaft 241.

At this time, the rotating bowl 200 is provided with a drive motor 246 to forcibly rotate the drive pulley 245 by connecting to the drive pulley 245 through the V-belt (243). In addition, the rotating bowl 200 is provided with a reduction gear 247a and connected to the gearbox 247 through the V-belt 243.

Of course, the drive pulley 245 may be connected to the drive motor 246 by various power transmission devices, the gear box 247 may be connected to the gear box 247 by various power transmission devices.

In particular, the rotating bowl 200 is inserted into the outer case 100 so as to be inclined in a direction of the upper water outlet 110 of the outer case 100.

This is to allow the supernatant separated from the sludge to flow naturally in the direction of the supernatant outlet 110 of the outer case 100.

On the other hand, the rotating bowl 200 forms a solid discharge port 220 connected to the upper discharge water outlet 210 and the solid discharge outlet 120 connected to the upper discharge outlet 110.

That is, the rotating bowl 200 forms a top discharge outlet 210 on one side adjacent to the top discharge outlet 110 of the outer case 100, and forms a solid discharge outlet 220 on the other side adjacent to the solid discharge outlet 120. do.

Accordingly, the rotating bowl 200 is open to both sides.

In addition, the rotary shaft 300 is axially rotatably inserted into the rotary bowl 200. At this time, the rotating shaft 300 is rotated in the same direction as the rotating bowl 200, and rotates at a different rotation speed from the rotating bowl 200.

In particular, the gearbox 247 rotates the rotating shaft 300 together with the large diameter shaft 241 of the rotating bowl 200.

At this time, the rotation shaft 300 may change the rotational speed by the reducer to rotate in a vehicle speed with the rotation bowl 200.

In addition, the rotary shaft 300 has a space 330 inside the other side adjacent to the solid discharge port 220 of the rotary bowl 200. Then, the rotation shaft 300 inserts the feed pipe 340 to the other side. Of course, the feed pipe 340 is preferably inserted into the other side of the rotary shaft 300 through the other side of the outer case 100 and the small diameter shaft 242 of the rotary bowl 200.

That is, the end of the feed pipe 340 is located in the space 330.

Here, the feed pipe 340 is inserted into the rotary shaft 300 serves to limit the external sludge flowing into the rotary shaft 300.

In particular, the feed pipe 340 is fixedly inserted into the other side of the outer case 100, it is preferable that the rotatable bowl 200 and the rotatable shaft 300 is inserted rotatably.

This is to prevent interference with the rotating bowl 200 and the rotating shaft 300.

In addition, the rotary shaft 300 forms a sludge discharge port 320 on the circumferential surface to be connected to the space 330. The sludge discharge port 320 serves to discharge and guide the sludge introduced into the space 330 during the forced rotation of the rotary shaft 300 into the rotating bowl 200 by centrifugal force action.

Here, the sludge discharged through the sludge discharge port 320 by the rotary shaft 300 and the rotating bowl 200 at different rotational speeds are centrifuged into supernatant and solids by centrifugal force.

In particular, as the sludge is centrifuged, the solid having a large specific gravity is close to the inner wall side of the rotating bowl 200 or attached to the inner wall of the rotating bowl 200, and the upper specific water having a small specific gravity is the circumferential surface of the rotating shaft 300. Will flow along.

At this time, the rotating shaft 300 forms a plate 310 in a spiral on the circumferential surface along the axial direction.

The plate 310 may be detachably formed on the rotation shaft 300, but is preferably integrally formed on the rotation shaft 300.

In addition, the plate 310 is preferably formed continuously.

The plate 310 is rotated together with the rotary shaft 300 serves to force the solids separated from the sludge by the centrifugal force in the direction of the solid discharge port 220 of the rotary bowl 200.

Thus, the solids are discharged to the solid discharge port 220 and then discharged to the outside through the solid discharge port 120 of the outer case 100.

In addition, since the outer case 100 is provided to be inclined toward the upper water outlet 110, the rotating bowl 200 and the rotating shaft 300 are inserted into the outer case so as to be inclined in the same manner as the outer case. The supernatant separated from the sludge by centrifugal force flows along the plate 310 of the rotary shaft 300 and is discharged to the supernatant discharge port 210 of the rotary bowl 200.

Thus, the supernatant is discharged to the supernatant outlet 110 of the outer case 100.

In particular, the main factors affecting the processing performance of the horizontal pot screw centrifuge are the solids volume (V) in the rotating bowl 200 representing the centrifugal sedimentation separation area (Σ), the centrifugal effect (G), and the residence time.

Here, the centrifugal sedimentation separation area (∑) value is an index indicating how well the solid particles settle as a factor related to the sedimentation of the particles, and the product of the centrifugal effect and the solid volume (G * V) as another index of treatment performance. There is this.

This is indicative of how much time the settled solid particle group can stay in the rotating bowl 200 at which centrifugal force.

In other words, the faster the volume and the larger the volume of the rotating bowl 200, the better the basic performance of the horizontal pot screw centrifuge. According to the experiment, in the case of mixed fresh sludge solids in the pretreatment process, the limit of separation performance is the centrifugal sedimentation separation area ( In the case of excess sludge solids in the post-treatment process, the limit of separation performance is proportional to the product of the centrifugal effect and the volume of solids (G * V).

In addition, the horizontal pot screw centrifuge separates solids by centrifugal force generated by rotating the sludge at high speed, and the terminal sedimentation velocity (Vc) of a single particle of solids is estimated by the following equation according to Stokes' law. do.

Where Ps: density of solids (kg / m ³ ), P1: density of liquids (kg / m ³ ), μ: viscosity of liquids (kg / m.sec), d: diameter of solid particles (m) , r1: rotation radius (m), w: angular velocity (1 / sec), N: rotation speed (1 / sec).

At this time, the ratio of the artificial centrifugal acceleration due to the rotational movement and the gravity acceleration (g) is called the centrifugal effect (G), which is represented by the following equation as an index indicating the magnitude of the centrifugal force.

The relationship between the settling velocity (Vc) of particles in the centrifugal force field and the settling velocity (Vg) in the gravitational field is as follows.

In summary, the sedimentation rate of the particles in the centrifugal force field is maintained at G times the sedimentation rate in the gravitational field, so that particles that cannot be gravity settled can be separated in a short time.

On the other hand, in the rotating bowl 200, there is a solid water and a supernatant centrifuged from sludge. For each volume calculation, the supernatant of the horizontal pot screw centrifuge is determined as the linear velocity, and the solid matter is determined as the residence time.

This is because the solids are determined to be settled, but the supernatant should not be resuspended when the sedimented solids flow out, and the solids recovery rate is determined at a linear velocity of 0.08 to 0.2 m / sec.

Therefore, the plate 310 is provided with a supernatant discharge passage 400 to sufficiently have a linear velocity of the supernatant.

The upper water discharge passage 400 serves to secure a flow path of the upper water flowing through the plate 310 along the axial direction of the rotary shaft 300.

At this time, the upper water discharge passage 400 may be formed along the zigzag trajectory, but is preferably formed on a straight line. In addition, the upper water discharge passage 400 is made of a size that can flow the set flow rate.

Of course, the upper water discharge passage 400 is preferably formed on the lower side of the plate 310 that is connected to the circumferential surface of the rotary shaft 300, so that there is no catching jaw, it is preferable to secure the fluidity of the upper water.

In particular, the supernatant flowing through the supernatant discharge passage 400 includes a fine solid.

Therefore, it is preferable that this fine solid precipitates separately from the supernatant.

Thus, the rotary shaft 300 forms the sedimentation drainage member 500.

The sedimentation drainage member 500 is formed in the same spiral as the plate 310 in the circumferential surface along the axial direction of the rotary shaft 300 serves to induce the sedimentation of the fine solids contained in the supernatant.

Of course, the sedimentation drainage member 500 can be formed in other shapes.

The sedimentation drainage member 500 is preferably formed on the front side of each portion of the plate 310, the upper portion of the water discharge path 400 is formed in the flow direction of the supernatant.

The sedimentation drainage member 500 may be detachably formed on the rotary shaft 300, but is preferably integrally formed on the rotary shaft 300.

In addition, the height of the sedimentation drainage member 500 is preferably formed to be the same as the height of the upper water discharge passage (400).

At this time, if the height of the sedimentation drainage member 500 is higher than the height of the supernatant discharge passage 400, the supernatant may not flow properly.

On the contrary, if the height of the sedimentation drainage member 500 is lower than the height of the supernatant discharge passage 400, the fine solids contained in the supernatant may flow beyond the sedimentation drainage member 500, and thus the sedimentation effect may not be sufficiently exhibited.

Of course, the sedimentation drainage member 500 can be modified in various shapes.

In addition, the rotary shaft 300 is divided into a horizontal portion 350 and the cone portion 360 so as to have a sufficient residence time of the solid in the rotating bowl 200 when the solid material is forcibly transported by the plate 310.

In particular, the horizontal portion 350 is a portion formed in the rotation shaft 300 of the same diameter, that is, a cylinder or a cylindrical shape, the cone portion 360 is a portion extending from the horizontal portion 350.

Here, the tip diameter of the cone portion 360 connected with the horizontal portion 350 is formed larger than the diameter of the horizontal portion 350. And, the cone portion 360 is gradually reduced in diameter.

That is, the rotating shaft 300 forms a horizontal portion 350 on one side, and forms a cone portion 360 on the other side.

At this time, the plate 310 forms a plate 310 in the horizontal portion 350 and the cone portion 360.

Therefore, when the rotating shaft 300 is rotated in one direction, the solids inside the rotating bowl 200 are transported along the horizontal portion 350 and are compressed and dehydrated at the portion of the cone portion 360 to open the solid discharge outlet 220. Discharged through. The supernatant generated while the solid is compressed is flowed in the direction of the supernatant discharge port 210 by the load.

As a result, the residence time of the solids is delayed by the tip of the cone portion 360 protruding from the end of the horizontal portion 350.

Here, the rotating bowl 200 is preferably formed to be similar to the shape of the horizontal portion 350 and the cone portion 360 of the rotating shaft 300.

On the other hand, the solid is provided with a solid material compression discharge member 600 to extend the residence time inside the rotating bowl (200).

The solid compact compression discharge member 600 is provided at the edge of the cone portion 360 that is connected to the horizontal portion 350, that is, the front end thereof to narrow the space between the inner side of the rotating bowl 200 to narrow the flow space of the solid. It serves to enlarge the residence time inside the rotating bowl 200 of the solid.

In particular, the solid compression discharge member 600 is formed detachably on the side portion of the cone portion 360, it is preferable that the distance and the distance can be adjusted inside the rotating bowl (200).

Thus, the solid compression discharge member 600 is preferably made of a plurality of different diameters to be able to select. Of course, the solid compression discharge member 600 is provided with one may be formed to adjust the distance to the inside of the rotating bowl (200).

In particular, the solid compression discharge member 600 is preferably fastened to be detachably fixed by the fastening member 610 on the side of the cone portion (360).

Here, the fastening member 610 is preferably made of a mechanical fastening element such as a bolt.

In addition, if the supernatant centrifuged from the sludge inside the rotary bowl 200 immediately discharged into the outer case 100 through the supernatant discharge port 210, since the solids are not dense, the compaction force is reduced so that the compressive force is reduced.

Thus, the upper discharge water outlet 210 forms a dam member 230 in the center direction from the bottom of the rotating bowl 200.

The dam dam member 230 serves to store the supernatant water in as many bottom portions as possible over the entire bottom of the rotating bowl 200.

This is to increase the compaction force of the solids by the separation liquid discharge pressure by the centrifugal force in the space between the solids compression discharge member 600 and the inside of the rotating bowl 200 by mixing with the supernatant.

Here, the dam dam member 230 may be detachably formed on the rotating bowl 200, but is preferably formed integrally with the rotating bowl 200, and may be applied in various shapes.

In particular, the solids settled to the inner wall of the rotating bowl 200 is transferred to the cone portion 360 in accordance with the helical rotation of the plate 310, the settled solids are transferred to the cone portion 360 and the solids compression discharge member 600 and Discharge adjustment is made while passing between the inner wall of the rotating bowl (200).

In addition, the rotary shaft 300 is rotated at a vehicle speed than the rotary bowl 200 by the reducer and the gear box 247, the settled solids are the solid compression compression member 600 and the rotary bowl 200 of the rotary shaft 300 Adjust the solids discharge between the insides.

At this time, the height of the dam dam member 230 is positioned higher than the height of the solid discharge port 220, so that the pressure action according to the centrifugal force acts more toward the solid discharge port 220, thereby compressing the solid compact compression discharge member 600. Increased further.

Thus, as the interval between the solid compression discharge member 600 and the inside of the rotating bowl 200 is set to adjust the solid discharge pressure, as shown in Figure 5, the gearbox 247 is discharged by the external signal to the discharge speed of the solids discharged separately To control and reduce water content.

Here, the drive motor 246 transmits power to the V-belt 243 to the drive pulley 245 provided on one side of the cone portion 360 of the rotating bowl 200 through the main motor inverter 246a to rotate the bowl ( Rotating the 200, the reduction gear 247a and the gearbox 247 is to transmit a differential to the rotating shaft 300 by the V-belt (243).

At this time, the gearbox 247 and the reducer 247a convert the power provided to the other side of the horizontal portion 350 of the rotating bowl 200 by the controller 249a by the rotation ratio of the gearbox 247 and rotate the rotation. The shaft 300 and the rotating bowl 200 rotate in the same direction at a differential rotational speed.

Here, the rotation shaft 300 is electrically connected to the vehicle speed control unit 240 so as to be differential from the rotation bowl 200 to rotate in the same direction.

In this case, the vehicle speed controller 240 includes a vehicle speed motor 248 and a vehicle speed inverter 249.

More specifically, the gear box 247 is connected to the vehicle speed motor 248, the vehicle speed motor 248 is electrically connected to the vehicle speed inverter 249 and the control unit 249a and the concentration of the sludge and the settling solid discharge pressure and When the braking current according to the conveying torque is applied to the vehicle speed motor 248 through the gear box 247 to the vehicle speed inverter 249 and transmitted to the controller 249a, the controller 249a sets a deviation from the setting range. The control unit 249a commands the vehicle speed rotational speed to the vehicle speed motor 248 by comparing and determining.

Figure 6 shows a controller operating graph of the control unit of the horizontal port screw centrifuge.

Although the present invention has been described with reference to the embodiments illustrated in the drawings, it is merely exemplary, and various modifications and equivalent other embodiments are possible from those skilled in the art. I will understand. Therefore, the true technical protection scope of the present invention will be defined by the claims below.

1 is a cross-sectional view of a horizontal pot screw centrifuge according to an embodiment of the present invention.

2 is a partial cross-sectional view of a horizontal pot screw centrifuge according to an embodiment of the present invention.

Figure 3 is a perspective view of the port screw conveyor of the horizontal port screw centrifuge according to an embodiment of the present invention.

Figure 4 is a front view of the port screw conveyor of the horizontal port screw centrifuge according to an embodiment of the present invention.

5 is a system diagram of a control unit of the horizontal port screw centrifuge according to an embodiment of the present invention.

Figure 6 is a controller operation graph of the vehicle speed control unit of the horizontal port screw centrifuge according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

100: outer case 110: upper water outlet

120: solid discharge outlet 200: rotating bowl

210: supernatant discharge outlet 220: solid discharge outlet

230: dam dam member 300: rotating shaft

310: plate 320: sludge discharge outlet

330: space 340: feed pipe

350: horizontal portion 360: conical portion

400: upper water discharge passage 500: sedimentation drainage member

600: solid material compression discharge member

Claims (4)

An outer case having a supernatant outlet and a solid outlet; A supernatant discharge outlet connected to the supernatant outlet and a solid discharge outlet connected to the solid outlet are formed and rotatably inserted into the outer case so as to be inclined toward the supernatant outlet, and the supernatant separated from the sludge by centrifugal force in the direction of the supernatant outlet. Natural flow pilot rolling bowl; A spiral plate is rotatably inserted in the rotating bowl, and a spiral plate is disposed on a circumferential surface along the axial direction to forcibly transfer solids separated from sludge discharged from the inside to the outside through the sludge discharge port by centrifugal force in the direction of the solid discharge port. Formed rotary shaft; A superior water discharge passage for securing a flow path of the superior water flowing through the plate along the axial direction of the rotary shaft; And Horizontal port screw centrifuge, characterized in that it comprises a sedimentation drainage member formed on the circumferential surface along the axial direction of the rotary shaft to induce sedimentation of the fine solids contained in the supernatant. The method of claim 1, The rotary shaft is electrically connected to a vehicle speed control unit so as to be differential from the rotary bowl and rotate in the same direction; The upper water discharge port is a horizontal port screw centrifuge, characterized in that to form a dam member in the center direction from the bottom of the rotating bowl to store the top water throughout the floor. The method according to claim 1 or 2, The rotating shaft is divided into a horizontal portion and a circumferential surface of the same diameter and divided into a conical portion which gradually decreases in diameter in the solid discharge port direction; An edge of the cone portion connected to the horizontal portion is provided with a solid compression discharge member is adjustable horizontal port screw centrifuge, characterized in that for adjusting the interval with the inner side of the rotating bowl. The method of claim 3, wherein The solid compaction pressurizing discharge member is made of a plurality of different diameters of the horizontal port screw centrifuge, characterized in that it is selectively coupled to one side of the cone portion.

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