KR20180003179U - Horizontal centurifugal seperator - Google Patents

Abstract

The present invention is intended to provide a horizontal centrifugal separator in which separation of filtrate and solids from wastewater is more effectively and stably performed.
That is, the present invention relates to a centrifugal main body unit, a centrifugal main body unit configured to separate liquid from the solid sludge, a screw body unit rotatable in the centrifugal main body unit, a screw blade unit rotated by the screw body unit, a dehydrating drum unit for dewatering the solid- And a driving unit for providing rotational driving for centrifugal separation.
According to this embodiment, the sludge is scraped off the screen while reducing the water content of the solids through which the liquid is centrifuged while reducing power consumption, increasing the sludge recovery rate by reducing the deviation of the fine sludge, It is possible to block the clogging and to separate the solid and the liquid continuously by using the centrifugal force of the perforated basket net so that the sludge staying in the perforated basket net can be dewatered continuously by scratching with the blade.

Description

[0001] HORIZONTAL CENTURIFUGAL SEPERATOR [0002]

The present invention relates to a horizontal centrifugal separator, and more particularly, to a horizontal centrifugal separator in which separation of a filtrate and a solid from wastewater is more effectively performed, thereby achieving high dehydration effect and stable discharge of solids.

In the food processing plant, livestock manure, manure treatment plant, etc., there is installed a high-volume centrifuge for treating wastewater. The liquid centrifuge consists of a wedge triangle and a crimping screw system to separate solid and liquid.

In order to separate liquid and solids such as conventional wastewater sludge, a horizontal centrifugal separator in which a cylindrical horizontal portion and a conical portion having an inclination are integrally combined is used.

In the horizontal centrifugal separator, when the separation liquid is supplied to the input portion of the rotating bowl, the solid matter having a high specific gravity is outwardly directed by the centrifugal force field which is high in the horizontal portion bowl immediately after the supply and the relatively light liquid is concentrated The separation takes place.

In the bowl conical part from which the solid cake is discharged, since the distance from the center of rotation is small, the centrifugal force is weak, and the light solid is floated into the circumference of the screw shaft and discharged as it is.

The solids separated from the horizontal bowl pass through the inclined surface of the cone bowl for discharging beyond the level in the horizontal bowl, resulting in slippage, and the discharge is not smooth. In other words, the shear force must be increased at the inclined plane so that the moisture content of the discharged solid cake is lowered. Therefore, the number of revolutions of the rotating bowl must be rotated at a higher speed than necessary, so that the power consumption is increased and the equipment is relatively increased.

On the other hand, the solid-liquid separator is also called a screw press dehydrator, and is configured to force the wastewater drawn into the wedge triangular mesh to press the screw. As a result, the liquid is discharged into the wedge triangular mesh, and the remaining sludge in the net is squeezed by a screw and dewatered. Thus, the solid-liquid separator is a system for dewatering and discharging sludge for separating liquid and sludge.

The existing screw press system is a method of dewatering by pressurizing liquid and sludge, so that the fine sludge can be forcibly escaped with the liquid between the nets. In this method, it takes a long time to separate a large amount of liquid and the recovery rate of the sludge is not good, which causes problems in the field operation.

KR 10-1127015 B1 (Mar. KR 10--1599328 B1 (February 25, 2016)

The present invention proposes a new technique for solving all the problems of the prior art as described above. The present invention provides a method of manufacturing a scroll fluid machine in which a screw blade is constructed in a variable manner, so that even if a braid rubs on a dewatering drum, A separator is provided.

Also, it is intended to provide a centrifuge having a damper installed in the variable structure to reduce the wear and power consumption of the screw, and a scraper unit provided on the outlet side to block clogging of the screen, thereby lowering the water content of the solid material in which the liquid is centrifuged.

In addition, although not separately described, other objects within the range to be deduced are also included in the overall task of the present invention in consideration of the specific contents and claims to be carried out.

As a means for solving the problem of the present invention, a cylindrical centrifugal main unit constituting a horizontal centrifugal separator, each having openings on both sides thereof, and having a drain port and a sludge discharge port at the lower part thereof; The centrifugal main body unit being rotatably disposed at both ends of the centrifugal main body unit in such a manner as to correspond to the openings on both sides of the centrifugal main body unit and being provided at one end thereof in the axial direction so as to connect the outside and the inside, A hollow screw body unit positioned to communicate with the inlet port and the opposite end of the inlet port being closed; The sludge separated from the inside of the centrifugal main body unit from one side of the screw body unit to the other side of the screw body unit is connected to the screw body unit so that the screw body unit can be elastically moved in a radial direction by a centrifugal force, A screw blade unit configured to move along the longitudinal direction of the body unit; Wherein the screw body unit is rotatably accommodated in the centrifugal main body unit while surrounding the screw blade unit and both end portions of the screw body unit are rotatably provided at both ends of the screw body unit so that the liquid separated from the sludge is discharged to the drain hole side A dewatering drum unit provided with an outlet for discharging the liquid separated sludge to the sludge discharge port; And a driving unit connected to transmit power to the screw body unit and the dehydrating drum unit.

A plurality of scraper units which are held on the inner wall of the dewatering drum unit and configured to scrape off solid sludge that blocks dewatering or to push the solid sludge outwardly and to rotate together with the screw body unit .

The screw blade unit may further include a blade holder spaced apart from the screw body unit and provided in a plurality of directions along the circumferential direction; Screw blades fixedly positioned along the spiral direction on the plurality of blade holders; And a rotation adjusting unit that interconnects the blade holder and the screw body unit and is configured to allow elastic movement in the radial direction of the blade holder, wherein the rotation adjusting unit is rotatable with respect to the screw body unit and the blade holder A holder link connected to the holder; A fixed bar fixedly positioned on the screw body unit, the holder link being elastically rotatably connected; And a tension adjusting damper interconnecting the holder link and the fixing bar and allowing the elastic rotation of the holder link with respect to the fixing bar.

According to the concrete means for solving the above-mentioned problems,

It is possible to reduce the power consumption of the solids in which the liquid is centrifuged, reduce the power consumption, reduce the deviation of the fine sludge, and increase the sludge recovery rate.

Also, since the screen is blocked by the scraper unit installed on the outlet side, the filtrate can be discharged quickly, and the working time for solid-liquid separation can be reduced. The centrifugal force of the perforated basket net can be used to continuously dewater the filtrate, The sludge that has been retained can be discharged continuously by the blade, and the expected effect is a countermeasure.

1 is a conceptual view of a horizontal centrifugal separator according to an embodiment of the present invention.
2 is a partially broken perspective view of a horizontal centrifugal separator.
3 is a configuration diagram of the variable screw blade unit of the present invention.
Figure 4 is a side view of Figure 3;
5 is a conceptual diagram of a horizontal centrifugal separator according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. In the following description of the present invention, detailed description of known functions and operations will be omitted when it is determined that the features of the present invention may be unnecessarily obscured by those skilled in the art.

The direction and position of the drawing are described assuming an XYZ Cartesian coordinate system. The top, bottom, right and left coincide with the XY coordinate plane system, and the front, rear, left and right coincide with the YZ coordinate plane system.

The horizontal centrifugal separator according to one embodiment of the present invention shown in Figs. 1 and 2 comprises a centrifugal main unit 100 configured to separate and discharge solid sludge and liquid, a screw body unit 100 rotatable in the centrifugal main unit 100, A screw blade unit 120 rotated by the screw body unit 110, a dewatering drum unit 140 for dewatering the wastewater with solid matter, and a driving unit 150 for providing rotational driving for centrifugation, As a main component.

The centrifugal main body unit 100 has a cylindrical structure in which openings are provided on both sides and a drain port 101 and a sludge discharge port 102 are provided in a lower portion. The centrifugal main body unit 100 has openings for engaging the screw body units 110 at the central portions of both side surfaces thereof, a drain port 101 at a lower central portion of the main body, and a sludge discharge port 102 at a lower right portion thereof. The centrifugal main body unit 100 may be formed in a cylindrical shape or a semi-cylindrical shape only in the lower part.

The screw body unit 110 is rotatably disposed in the centrifugal main body unit 100. The screw body unit 110 is provided at one end thereof in the axial direction so that both ends of the screw body unit 110 correspond to the openings on both sides of the centrifugal main body unit 100 and connect the inlet 111 to the outside, Is formed in a radial direction to communicate with the interior of the centrifugal main body unit (100), and the opposite end of the inlet (111) is closed.

A wastewater line 11 for supplying wastewater from the raw liquid reservoir 10 is connected to the inlet 111 of the screw body unit 110 by a rotary joint 13 and an inlet 111 of the screw body unit 110 is connected to the inlet 111 of the screw body unit 110, A bearing block 14 is provided so as to be rotatable.

The wastewater is supplied to the inlet port 111 and the outlet port 112 to the dehydrating drum unit 140 so that the wastewater is scattered to the inner wall of the dehydrating drum unit 140 by the rotation of the screw body unit 110. A pump 12 for transferring wastewater and a flow meter 15 for measuring the flow rate of wastewater are located in the wastewater line 11 and an on-off valve 17 is disposed.

The screw blade unit 120 is connected to the screw body unit 110 so that the screw blade unit 110 can be elastically moved in the radial direction by a centrifugal force, Is moved along the longitudinal direction of the screw body unit (110) from one side of the screw body unit (110) to the direction of the sludge discharge port (102) by the rotation of the blade.

The screw blade unit 120 can transfer the sludge dewatered by the dewatering drum unit 140 to the outlet 141 of the dewatering drum unit 140 by the screw structure of the screw blades 122. That is, the wastewater is dehydrated and sludged by the centrifugal force due to the rotation of the dewatering drum unit 140, and the sludge is conveyed toward the escape opening 141 side by the spiral structure of the screw blade unit 120.

Fig. 3 is a configuration diagram of the variable screw blade unit of the present invention, and Fig. 4 is a side view of Fig. As shown, the screw blade unit 120 may include a blade holder 121, screw blades 122, and a rotation adjuster 130.

The blade holder 121 is spaced apart from the screw body unit 110 and is provided in plural in the circumferential direction. The screw blade 122 is a plurality of elements that are positioned and fixed along the spiral direction on the plurality of blade holders 121. The rotation adjusting unit 130 is configured to interconnect the blade holder 121 and the screw body unit 110 and to allow elastic movement of the blade holder 121 in the radial direction.

The rotation regulating unit 130 includes a holder link 131 rotatably connected to the screw body unit 110 and the blade holder 121 by a pin 139 at both ends thereof, A fixing bar 132 that is connected to the screw body unit 110 and is fixed to the screw body unit 110 so as to connect the holder link 131 and the fixing bar 132, And a tension regulating damper 135 for allowing the rotation of the lifter 130. Fig.

The holder link 131 connecting the blade holder 121 and the screw body unit 110 in which the screw blades 122 are disposed is inclined at a predetermined angle when the screw body unit 110 is not rotated or rotated at a low speed And is elastically supported by the rotation regulating unit 130 with a sieve. When the screw body unit 110 is rotated at a higher speed, the blade holder 121 rotates the link 131 in a vertical direction due to the centrifugal force while pressing the rotation adjusting unit 130, As shown in Fig.

As described above, the screw radius of the screw blades 122 connected to the blade holder 121 can be adjusted according to the rotational speed of the screw body unit 110. The screw blades 122 are rotated and can be rotated and driven by being positioned in the outer circumferential direction of the screw body unit 110 by the spring setting amount of the tension adjusting damper 135 and varying to the inner wall of the basket net 143.

The tension adjusting damper 135 may include a spring 136 supported by the fixing bar 132 and may be configured to be coupled to a link member 138 coupled to the holder link 131, It is possible to prevent the blades from being excessively brought into close contact with the inner wall of the dehydrating drum unit 140 during high-speed rotation, thereby increasing the mechanical load due to friction and reducing the wear amount of the blades.

The dehydrating drum unit 140 is dehydrated so that sludge and liquid are separated from the wastewater. The dewatering drum unit 140 is rotatably received in the centrifugal main body unit 100 while enclosing the screw blade unit 120 and has both ends rotatably formed at both ends of the screw body unit 110, The sludge discharging port 102 is provided with an outlet 141 for discharging the liquid separated from the sludge discharging port 102 to the drain port 101 side.

One side of the dewatering drum unit 140 is supported by the screw body unit 110 by a bearing and the other side of the dewatering drum unit 140 is supported by a bearing block 148 and is rotatably coupled to the screw body unit 110. The dehydrating drum unit 140 includes a disk 142 disposed on both sides of the disk 142 and a basket net 143 surrounding the disk 142 and a basket shaft 144 rotatably coupled to the screw body unit 110.

Thus, the dewatering drum unit 140 has a basket net 143 formed with perforations, and the dewatering holes formed in the net can be sized to block the deviation of the fine sludge.

 The dewatering drum unit 140 is driven and rotated by the driving unit 150 together with the screw body unit 110.

The screw body unit 110 and the dewatering drum unit 140 are rotatably coupled to each other and a plurality of shaft bearings 146 and connection shafts 146 are connected between the screw body unit 110 and the dewatering drum unit 140. [ And the connection shaft 147 passes through the other end of the dewatering drum unit 140 at the other end of the screw body unit 110 and is exposed to the outside.

The driving unit 150 is connected to the screw body unit 110 and the dehydrating drum unit 140 so as to transmit power to the screw body unit 110 and the dehydrating drum unit 140.

The driving unit 150 includes a screw driving pulley 151 coupled to the connecting shaft 147 to be connected to the screw body unit 110, a drum driving pulley 152 coupled to the dehydrating drum unit 140, And a drive motor 157 having a plurality of pulleys 155 connected to the pulley 151 and corresponding to the drum drive pulley 152 and fixed to the rotary shaft 158. A plurality of pulleys 155 may correspond to the screw driving pulley 151 and the drum driving pulley 152 at different radii such that the screw body unit 110 and the dewatering drum unit 140 are rotated at the same speed.

When the drive motor 157 is operated, the screw drive pulley 151 and the drum drive pulley 152, which are respectively connected to the plurality of pulleys 155 by the driving member 159 in which the plurality of pulleys 155 are rotated and circulated, The screw body unit 110 and the dewatering drum unit 140 can be rotated.

The wastewater supplied to the inside of the dewatering drum unit 140 is dewatered by the rotating centrifugal force through the basket net 143 to be drained through the drain port 101 of the centrifugal main unit 100, The sludge is conveyed to the escape opening 141 side by the screw blade unit 120 connected to the screw body unit 110 along the basket net 143 and is discharged through the sludge discharge port 102 of the centrifugal main unit 100.

The screw blade 122 of the screw blade unit 120 is made of urethane rubber so that the basket blade 143 rubs against the basket net 143 or wears due to the solid sludge, The diameter of the blade is worn down and reduced.

However, in the present invention, the blade holder 121 rotates outwardly according to the centrifugal force due to the structure of the rotation adjusting unit 130, and the blade is closely contacted to the inner wall of the basket net 143 of the dewatering drum unit 140, The sludge adhered to the inner wall of the sludge discharging opening 141 can be spirally moved toward the outlet 141 without losing the sludge.

As shown in FIGS. 1 and 2, the centrifugal main body unit 100 according to one embodiment of the present invention is coupled to the screw body unit 110 of the centrifugal main body unit 100 and is disposed in contact with the inner wall of the dehydrating drum unit 140, A plurality of scraper units 160 configured to scrape off or push out the solid sludge that blocks the dewatering is configured in the inner front side of the dewatering drum unit 140.

The scraper unit 160 is fixed to the screw body unit 110 and is configured to rotate together with the screw body unit 110. The plurality of scraper units 160 may be disposed at right angles to the screw body unit 110, and may be symmetrically disposed at intervals of 180 degrees. The scraper unit 160 may include a scraper section 161 and a support plate 162 for connecting the scraper section 161 to the screw body unit 110.

The scraper portion 161 is positioned in the circumferential direction of the screw body unit 110 in which the outlet port 112 is formed so that the scraper portion 161 is disposed in a part of the left side of the basket net 143 to push the sludge blocking the holes So as to prevent the clogging of the pores by the sludge scattered in the outlet 112 and to dewater the maximum amount of liquid by the centrifugal force.

1, in the horizontal centrifugal separator according to an embodiment of the present invention, wastewater stored in the undiluted solution supply tank 10 of the wastewater supply unit is supplied to the inlet 111 of the screw body unit 110, The flow rate of the wastewater supplied to the centrifugal main body unit 100 from the raw liquid reservoir 10 of the wastewater supply unit is measured and supplied to the screw body unit 110 by the drive unit 150. [ And a control unit 170 for controlling the rotational speed of the dewatering drum unit 140. [

The control unit 170 is electrically connected to the flow meter 15 and the pump 12 described above. The control unit 170 can collect the flow rate data of the wastewater flowing from the flow meter 15 through the wastewater line 11 and calculate the flow rate of the wastewater through the drive motor 150 of the drive unit 150 157 can be controlled.

4 shows a horizontal centrifugal separator according to another embodiment of the present invention. Figure 4 shows the overall arrangement and components of the centrifuge more specifically.

In the centrifugal separator of FIG. 4, the scraper unit 160 is omitted, and the screw blade unit 120 is disposed at the upper and lower portions of the screw body unit 110. The horizontal centrifugal separator according to this alternative embodiment differs from the above embodiment in that the scraper unit 160 is omitted, and the structure and operation are the same as those of most components.

Although the preferred embodiments of the present invention have been described in detail above, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope of the present invention. Therefore, the scope of protection of the present invention is not limited to the above embodiments, but the scope of the claims of the patent claims and the scope of protection from these techniques to equivalent technical means should be acknowledged.

10: stock tank 11: wastewater line
12: Pump 15: Flow meter
17: opening / closing valve 100: centrifugal main body unit
101: Drain 102: Sludge outlet
110: screw body unit 111: inlet
112: outlet 120: screw blade unit
121: blade holder 122: screw blade
130: rotation adjusting part 131: holder link
132: fixing bar 135: tension adjusting damper
136: spring 138: link member
140: Dewatering drum unit
141: exit port 142: disc
143: Basket net 144: Basket axis
146: Axial bearing 147: Connecting shaft
150: drive unit 151: screw drive pulley
152: Drum drive pulley 155: Multiple pulleys
157: drive motor 158: rotary shaft
159: driving member 160: scraper unit
161: Scraper 162: Support plate
170: control unit

Claims (1)

A cylindrical centrifugal main unit provided with openings on both sides thereof and provided with a drain port and a sludge discharge port at a lower portion thereof;
The centrifugal main body unit being rotatably disposed at both ends of the centrifugal main body unit in such a manner as to correspond to the openings on both sides of the centrifugal main body unit and being provided at one end thereof in the axial direction so as to connect the outside and the inside, A hollow screw body unit positioned to communicate with the inlet port and the opposite end of the inlet port being closed;
The sludge separated from the inside of the centrifugal main body unit from one side of the screw body unit to the other side of the screw body unit is connected to the screw body unit so that the screw body unit can be elastically moved in a radial direction by a centrifugal force, A screw blade unit configured to move along the longitudinal direction of the body unit;
Wherein the screw body unit is rotatably accommodated in the centrifugal main body unit while surrounding the screw blade unit and both end portions of the screw body unit are rotatably provided at both ends of the screw body unit so that the liquid separated from the sludge is discharged to the drain hole side A dewatering drum unit provided with an outlet for discharging the liquid separated sludge to the sludge discharge port; And
A driving unit connected to transmit power to the screw body unit and the dehydrating drum unit;
When the wastewater is supplied to the inlet of the screw body unit through the wastewater line provided with the pump for transferring wastewater, the flow rate of the wastewater is measured and the rotational speed of the screw body unit and the dewatering drum unit is controlled by the drive unit And a control unit electrically connected to the flow meter and the pump,
Further comprising a plurality of scraper units which are fixed in position in a circumferential direction of the screw body unit in which the outlet is located from the inner front side of the dehydrating drum unit and scrape off the solid sludge which rotates together with the screw body unit to block dehydration,
The screw blade unit may include a blade holder spaced apart from the screw body unit and provided in plural in the circumferential direction; Screw blades fixedly positioned along the spiral direction on the plurality of blade holders; And a rotation regulating portion interconnecting the blade holder and the screw body unit and configured to allow elastic movement in the radial direction of the blade holder,
Wherein the rotation adjusting unit comprises: a holder link which is disposed obliquely so that both ends thereof are rotatably connected to the screw body unit and the blade holder by a pin; A fixing bar positioned and fixed to the screw body unit; And a tension adjusting damper interconnecting the holder link and the fixed bar to allow elastic rotation of the holder link,
Wherein the holder link is angularly moved about the pin when the screw body unit rotates, so that the blade is adjacent to the inner wall of the drum.

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