KR20190137662A - Drum type sludge concentrator - Google Patents

Abstract

The present invention is provided with a roller-type support means in the lower side of the screen drum, the upper middle is provided with a power transmission means for transmitting power while limiting the upper movement of the screen drum is easy to install and dismantle the screen of the screen drum A drum-type centrifugal concentrator with a concentrated liquid conveying device which is free from deformation due to shaking and torsion and has a low noise and vibration. The outer case is made of a hollow cylinder and has a plurality of holes formed therein to allow moisture in the sludge to pass therethrough. A pair of screen drums, each of which is coupled to both ends of each of the screen drums, both end supporting members formed in a ring shape having hollows therein, are spaced apart from each other in the center of each screen drum, and having hollows therein. A pair of intermediate supporting members formed in a ring shape, the pair of intermediate supporting members Ring gears positioned between the members, a pair of support shafts installed in parallel to the screen drums under each screen drum, the both ends of which are rotatably supported by bearings on both side walls of the outer case, and cylindrically on each support shaft. A plurality of support rollers installed to be concentric with the support shaft to support the screen drum, the drive shaft being installed in parallel with the screen drum on the upper side of each screen drum, the both ends being rotatably supported by bearings on both side walls of the outer case; It is characterized in that it comprises a drive gear installed on the drive shaft and coupled to the ring gear.

Description

Drum type centrifugal concentrator with concentrate conveying device

The present invention relates to a drum-type centrifugal concentrator provided with a concentrating liquid conveying device, and more particularly, it is made of a simple structure with excellent condensing performance, and is easy to manufacture, maintain, and repair, and improves condensing performance due to the excellent washing effect of the screen drum. It relates to a drum-type centrifugal concentrator with a concentrate conveying device.

In general, filthy water or waste water is in a state in which a large amount of water and solids are mixed, and for the purification thereof, a flocculant is added to agglomerate solids and then treated by separating the agglomerated solids and water.

As a method for separating solids and water, a method of separating water by pressurizing sludge by a conveying filter or a rotating screw or a method of separating water by centrifugal force of a rotating screen drum is mainly used.

However, when using such a method, the device is complicated for driving a filter, a screw, a screen drum, and the like, and when a large amount of water is contained, there is a problem of inferior concentration effect.

In order to solve this problem, a number of gravity type concentrators have been developed and used in recent years, and for example, the Korean Utility Model Registration No. 20-0385230 (announced 25.25.25).

However, the prior art as described above also has a problem in that the sludge is not sufficiently concentrated and failure occurs frequently during use.

In particular, there is a high possibility of the occurrence of shaking, deformation and breakage during operation of the filter cylinder, and there is a problem in that it is difficult and expensive to repair it.

In addition, in the prior art, there is a problem in that the concentrated sludge is accumulated without being attached to the apparatus and the failure is generated.

Korea Utility Model Registration No. 20-0385230 (August 25, 200.)

In order to solve the problems as described above, the present invention is to provide a drum-type centrifugal concentrator provided with a concentrated liquid conveying device without the vibration of the screen drum during operation and less noise.

It is also an object of the present invention to provide a drum-type centrifugal concentrator provided with a concentrate conveying device which prevents the concentrated sludge from remaining and attached to the inner wall of the apparatus and can be completely discharged.

In addition, an object of the present invention is to provide a drum-type centrifugal concentrator provided with a concentrate conveying device to effectively cope with a change in concentration of sludge by providing an effective washing means.

In addition, an object of the present invention is to provide a drum-type centrifugal concentrator provided with a concentrated liquid conveying device with a low frequency of failure since the means for transmitting power to a rotating body such as a screen drum has a simple and safe structure.

In addition, the present invention is provided with a concentrated liquid conveying device provided with two screen drums and inlet pipes, valves, etc. corresponding to each screen drum to enable normal operation even when replacing or repairing the screen drum on one side. It is an object to provide a drum centrifugal concentrator.

In addition, an object of the present invention is to provide a drum-type centrifugal concentrator equipped with a concentrate conveying apparatus that can effectively perform cleaning without disturbing the sludge treatment of the screen drum through the optimum arrangement of the washing means.

As a means for solving the problems as described above, the drum-type centrifugal concentrator provided with the present invention concentrate transfer device,

Outer case,

A pair of screen drums formed of a hollow cylinder and formed with a plurality of holes to allow moisture in the sludge to pass therethrough,

Both end supporting members each of which is coupled to both ends of each screen drum, and formed in a ring shape having a hollow portion therein,

A pair of intermediate support members, which are spaced apart from each other at the center of each screen drum, are formed in a ring shape having a hollow portion therein,

A ring gear positioned between the pair of intermediate support members,

A driving support shaft and an idle support shaft installed at a lower side of each screen drum in parallel with the screen drum, the both ends of which are rotatably supported by bearings on both side walls of the outer case;

A support portion supporting an intermediate portion of the drive support shaft and the idle support shaft,

A plurality of support rollers installed on the driving support shaft and the idle support shaft so as to be concentric with the support shaft, the support roller supporting the screen drum in contact with the support members and the intermediate support members;

It is installed on the drive support shaft, characterized in that it comprises a drive gear coupled to the ring gear.

In addition, the outer case is provided with a sludge inlet portion in the lower side on both sides, the sludge discharge portion is provided in the lower center,

The sludge discharge part is formed with a bottom surface consisting of a semicircular curved surface in the width direction parallel to the ground, the sludge discharge port is provided in the center of the front and rear direction of the bottom surface is provided with a screw driven by a screw driving means therein,

The screw is characterized in that the blade is formed in the rotational direction of the spiral opposite to each other toward the front and rear direction around the center of the front and rear direction.

In addition, the washing water supply pipe is installed to penetrate through the hollow portion of the outer case and the screen drum, extending to the inside of the screen drum and slidably installed on the outer case,

A plurality of washing water spray nozzles installed on the washing water supply pipe inside the screen drum;

Washing water supply pipe driving means fixed to the outer case via a bracket,

Rotating plate coupled to the washing water supply pipe driving means,

One end is rotatably coupled to the rotating plate and the other end further comprises a connection bar coupled to the wash water supply pipe,

The washing water supply pipe inside the screen drum is located eccentrically with the central axis of the screen drum, but is located eccentrically downward.

The wash water supply pipe is branched from the outside of the outer case is connected to the respective screen drum, characterized in that the valve is mounted on each branched wash water supply pipe.

In addition, the support roller,

The outer periphery is in contact with the outer periphery of the support member for both ends, and the outer end is provided with an enlarged portion for restricting the movement of the outer support member of the both ends support member to the outside, so that the screen drum does not move Support rollers at both ends supported by the lower side

An outer circumference is in contact with the outer circumference of the pair of intermediate support members, and is provided with an axis diameter portion at the center so as not to interfere with the ring gear, thereby making up an intermediate support roller for supporting the screen drum at the lower center;

Sludge feed feeder which is provided at both sides of the inlet portion, is provided with a plurality of blades for sludge transport,

Drive means connected to the drive support shaft through a reducer and a coupling to supply rotational power;

A first gear coupled to one end extending out of the outer case of the driving support shaft;

And a second gear installed at one end of the central shaft extending out of the outer case of the sludge feed feeder and gear-coupled with the first gear.

Through the problem solving means as described above, the drum-type centrifugal concentrator provided with the present invention concentrate liquid transfer device, there is little shaking of the screen drum and little noise is generated during operation, preventing the concentrated sludge from remaining and attached to the inner wall of the device It can be discharged completely to prevent breakdown due to sticking concentrated sludge, deterioration of cleaning efficiency, etc., and equipped with effective cleaning means to cope with the change of sludge concentration effectively, and to transmit power to rotating bodies such as screen drums. Its simple and safe structure means less trouble, and it is equipped with two screen drums and an inlet pipe and a valve corresponding to each screen drum. Operation is possible, and the optimum arrangement of the cleaning means for sludge treatment of screen drums If you do not give it an advantage such that even can effectively perform the cleaning.

1 is a view showing a state observed from one side drum-type centrifugal concentrator equipped with a concentrate transfer device according to the present invention.
Figure 2 is a view showing the appearance observed from the other side drum type centrifugal concentrator equipped with a concentrate conveying apparatus according to the present invention.
Figure 3 is a view showing the structure of the sludge discharge port of the drum-type centrifugal concentrator provided with a concentrate conveying apparatus according to the present invention.
4 is a sectional view including washing means as a further embodiment of a drum-type centrifugal concentrator with a concentrate transfer device according to the invention.
Figure 5 is a view showing the main part of the washing means of the drum-type centrifugal concentrator with a concentrate conveying apparatus according to the present invention.

With reference to the accompanying drawings, a preferred embodiment of a drum-type centrifugal concentrator provided with a concentrate transfer apparatus according to the present invention will be described in detail.

1 is a view showing a state observed from one side of the drum-type centrifugal concentrator with a concentrate conveying apparatus according to the present invention, Figure 2 is observed from another side a drum-type centrifugal concentrator with a concentrate conveying apparatus according to the present invention Figure 3 is a view showing the structure, Figure 3 is a view showing the structure of the sludge discharge port of the drum-type centrifugal concentrator provided with a concentrate conveying apparatus according to the present invention, Figure 4 is a drum-type centrifugal concentrator provided with a concentrate conveying apparatus according to the present invention 5 is a cross-sectional view of a washing means of a drum-type centrifugal concentrator with a concentrate conveying device according to the present invention.

As shown in Figure 1 to 5, the drum-type centrifugal concentrator 1 equipped with a concentrate conveying apparatus according to the present invention is equipped with a cleaning means, such as no vibration during operation in the peripheral drive method, and sufficiently responds to changes in the sludge concentration The outer case 2, a pair of screen drums 3, a pair of supporting members 4, which are provided at both ends of each screen drum 3, each screen drum ( 3) a pair of intermediate support members 5 provided in the center of the ring, a ring gear 6 provided between the pair of intermediate support members 5, and a drive provided below each screen drum 3; A plurality of support rollers provided on the support shaft and the idle support shaft 7, the drive support shaft 7, and the idle support shaft 7, the drive gear 10 provided on the drive support shaft 7, and the screen drum. (3) washing means for washing, the sludge supplied to the outer case (2) Sludge transfer feeder 11, the drive means 13, the power transmission for transferring the power of the drive means 13 to the sludge transfer feeder 11 via the drive support shaft 7 for the transfer to the screen drum (3). It comprises a means.

When the drum sludge thickener according to the present invention configured as described above is described in detail by dividing into detailed components as follows.

First, the outer case 2 is a space for concentrating the sludge introduced by accommodating detailed components such as the screen drum 3 therein, and is provided with front, rear, left, and right sidewalls 14, as shown in FIG. The upper part is provided with a sealed cover 15 which can be disassembled and assembled. The cover 15 is provided with a odor collecting flange 16 so as to collect odor generated from sludge, and also includes a screen drum 3, An inspection window 17 for checking the concentrated sludge state is provided.

In addition, the outer case 2, as shown in Figure 1, the sludge inlet portion 18 is provided at the lower side on both sides and the sludge discharge portion 19 is provided at the lower center of the sludge introduced from the lower side of both sides After passing through the upper portion of the screen drum (3) to fall and is discharged to the lower center. Here, as shown in Figure 1, the partition wall 20 is provided on both sides of the screen drum 3, so that only the moisture contained in the sludge passes through the holes of the screen drum 3 and the sludge of the screen drum 3 It is moved to the sludge discharge unit 19 through the upper portion.

The end of the partition wall 20 is provided with a scraper is configured to scrape the sludge attached to the outer surface of the screen drum (3) to be discharged to the sludge discharge unit (19).

The sludge discharge unit 19 is formed with a bottom surface formed in a semicircular curved cross section in the width direction parallel to the ground, and as shown in FIG. 2, a sludge discharge port 19 'is formed at the center of the front and rear directions of the bottom surface. It is provided with a screw 19 "driven by the screw drive means therein.

The screw 19 "is formed with blades which are formed in opposite directions of rotation of the spirals toward the front and rear direction about the center of the front and rear direction.

Through this, in the prior art, it is fixed and accumulated on the inner wall of the thickening sludge, which may be generated by simply giving a gradient to the bottom surface, causing clogging, or problems such as odor generation and corrosion due to long-term staying of the thickening sludge at the ends of the front and rear directions. Will solve the problem.

In addition, the lower portion of the outer case (2) is provided with a treated water discharge portion 21 so that the treated water passing through the screen drum 3 can be collected after the fall.

The treated water discharge unit 21 is given an appropriate gradient to facilitate the discharge of the treated water.

The screen drum 3 is a member formed by rolling a plate having a plurality of holes formed in a cylindrical shape or a winding shape so that dehydration can be performed. Preferably, the screen drum 3 is made of a wedge wire screen or a perforated pipe. .

The drum-type centrifugal concentrator 1 with the concentrate conveying apparatus according to the present invention is a drum-type centrifugal concentrator with a gravity concentrate conveying apparatus, and is subjected to its own weight when the sludge flows through the upper surface of the screen drum 3. Moisture flows through the holes of the screen drum 3 to the inside of the screen drum 3, and then passes through the holes of the lower screen of the screen drum 3 and then discharges through the treated water outlet 21. do.

As shown in FIG. 4, the both ends supporting member 4 is a pair of members having a ring shape respectively coupled to both ends of the screen drum 3, and a hollow part is provided therein and has a relatively thin thickness. A structural material that protects the end of the screen drum 3 and at the same time makes direct contact with a supporting roller, which will be described later, to prevent the screen drum 3 from being directly loaded and to maintain the cylindrical shape of the screen drum 3 stably. It serves as.

As shown in FIG. 4, the intermediate support member 5 is a pair of members in the form of a ring that is coupled to the center of the screen drum 3, and a hollow part is provided therein.

The intermediate support member 5 is provided in pairs for each screen drum 3 as described above, and is provided spaced by the thickness of the ring gear 6 by providing a ring gear 6 therebetween. do.

The intermediate supporting member 5 protects the screen drum 3 which is relatively thin, similar to the supporting member 4 at both ends, and the screen drum 3 is directly loaded by being in direct contact with the supporting roller. In addition, the screen drum 3 plays a role of a connecting member when connecting the plurality of screen drums 3 as well as a structural member to maintain the cylindrical shape stably.

As described above, the ring gear 6 preferably uses a spur gear as a gear located between the intermediate supporting members 5.

The ring gear 6 is coupled to a pair of intermediate supporting members 5 located on both sides via coupling means such as bolts.

As shown in FIG. 2, the driving support shaft 7 and the idle support shaft 7 are rotatably supported by bearings on both side walls 14 of the outer case 2 and are installed for stable support. It is preferable to install in parallel with the screen drum 3.

The driving support shaft 7 is connected to the driving means 13 to be described later, and rotates when the driving means 13 is driven to rotate the screen drum 3.

The idle support shaft 7 supports the screen drum 3 and rotates when the screen drum 3 rotates.

In the middle portion of the drive support shaft and the idle support shaft 7, as shown in FIG. 2, a support portion 8 supporting the intermediate shaft portion and fixed to the side wall of the outer case 2 by a bracket or the like is provided. This prevents the central portion of the driving support shaft and the idle support shaft 7 from being struck by the load and its own weight.

The support roller is a member which is installed on the driving support shaft (7) and the idle support shaft (7) to be concentric with the support shaft (7) to support the screen drum (3), the outer periphery of which is supported for both ends In contact with the outer periphery of the member 4 or the intermediate support member 5, the screen drum 3 is actually supported.

Specifically, as shown in Figure 2, the support roller is divided into a support roller 22 and the intermediate support roller 24, both ends of the support roller 22, the outer periphery of the support member for both ends ( It is supported in contact with the outer periphery of 4), the outer diameter (23 direction) toward the end of the enlarged diameter portion 23 which is caught by the outer wall of the support member (4) on both ends to restrict the movement of the support member (4) to the outside ) Is provided.

Therefore, the screen drum 3 is supported by the support rollers 22 at both ends, and the movement of the screen drum 3 in the longitudinal direction is limited by the enlarged diameter portion 23 of the support rollers 22 at both ends.

And the intermediate support roller 24 is provided with an axis diameter portion (not shown) so that the outer circumference thereof is in contact with the outer circumference of the pair of the intermediate support member 5, the intermediate support roller 24 does not interfere with the ring gear 6 in the middle The screen drum 3 is supported in the lower middle.

The drive gear 10 is provided on the drive support shaft 7, specifically, is located in the shaft diameter portion of the intermediate support roller 24 formed on the drive support shaft 7, and the ring gear 6 As the gear is coupled to the gear, when the driving means is rotated, the rotational force is transmitted in the order of the driving support shaft (7)-> drive gear (10)-> ring gear (6)-> screen drum (3) The drum 3 is rotated.

As described above, in the present invention, the drive gear 10 for power transmission to the screen drum 3 is installed at the center of the screen drum 3 so that the drive gear 10 is installed at the end of the screen drum 3. Deformation due to torsion and buckling of the screen drum (3) appearing in a drum-type centrifugal concentrator equipped with a concentrate conveying device disclosed in Korean Patent Publication No. 10-1183555 (published on September 21, 2012, the patent by the applicant) It is possible to prevent the occurrence of vibration and breakage, and also to prevent the deformation and damage caused by the twisting and buckling of the screen drum 3 as described above, and thus lengthening the length of the screen drum 3 can increase the sludge dewatering capacity of the concentrator. There is an advantage to increase.

In addition, since the roller or the rotating shaft is not installed on the upper portion of the screen drum 3, the present invention is easy to detach the screen drum 3 to the upper portion, and the driving support shaft provided with the support roller simply supports the screen drum 3 at the time of mounting. (7) and the idle support shaft (7) only need to be attached to the separate power transmission means there is no work for easy repair and replacement of the old screen drum (3), the state of the screen drum (3) There is an advantage that can be easily identified.

The cleaning means, as shown in Figure 4 and 5, is installed through the hollow portion of the outer case 2 and the screen drum (3) extending to the inside of the screen drum (3) and the outer case (2) A washing water supply pipe 26 installed to be slidably installed on the washing machine, a plurality of washing water spray nozzles installed on the washing water supply pipe 26 inside the screen drum 3, and a bracket 28 on the outer case 2. Washing water supply pipe driving means 29, which is fixed through the rotating plate 30 is coupled to the washing water supply pipe driving means 29, one end is rotatably coupled to the rotating plate 30 and the other end is supplied to the washing water It consists of a connection bar 31 coupled to the pipe (26).

Here, the washing water supply pipe 26 is configured to slide in the direction of the center axis of the screen drum (3), the connecting bar 31 is hinged to the rotating plate 30 and the washing water supply pipe is rotated with each other It is configured to be possible.

Through this, when the washing water supply pipe driving means 29 is driven, the rotating plate 30 is rotated, the rotation of the rotating plate 30 is connected to the washing water supply pipe 26 through the connection bar 31 It is reciprocated in parallel with the screen drum (3), and thus the washing water supply pipe 26 to increase the washing efficiency by washing the screen drum (3) while reciprocating.

In addition, the washing water supply pipe 26 inside the screen drum 3 is eccentrically positioned with the central axis of the screen drum 3, but is located eccentrically downward, compared to the conventional concentrator for spraying the washing water from the rotating shaft It can be configured simply and to increase the cleaning effect by reducing the interval between the washing water supply pipe 26 and the screen drum (3) to be cleaned, there is an advantage that can be washed while the concentrator is in operation.

In addition, the washing water supply pipe 26 in the present invention is branched outside the outer case 2 is connected to each screen drum (3), the valve 27 is mounted on each branched washing water supply pipe (26) By doing so, even if the screen drum 3 on one side is being repaired or replaced, it is possible to individually control the washing water supply to each of the branched washing water supply pipes 26, so that there is an advantage that the continuous use of the sludge concentrator is possible.

The sludge feed feeder 11 is an impeller-shaped member having a plurality of blades for sludge transfer and provided at both inlet portions.

The sludge feed feeder 11 serves to transport the sludge introduced into the upper portion of the screen drum (3).

The drive means 13 is a means for generating power, an electric motor is used, and an inverter is installed to operate by adjusting the rotational speed of the screen drum according to the flow rate and concentration of the inflow sludge, the outer case (2) It is preferable to be fixedly installed on one side of the bracket).

The driving means 13 is connected to the driving support shaft 7 through the reduction gear 35 and the coupling 36 so that the driving support shaft 7 rotates when the driving means 13 rotates.

The power transmission means extends outside of the first gear 37 and the outer case 2 of the sludge feed feeder 11 coupled to one end portion extending out of the outer case 2 of the driving support shaft 7. The second gear 38 is installed at one end of the central shaft and gear-coupled with the first gear 37.

The power transmission means is installed on the opposite side of the driving means 13 (the other side of the outer case), so that the power transmission means and the driving means 13 are installed on the same side of the outer case 2 so that the load and vibration are generated. This avoids centralized and complicated structures.

Referring to the power transmission process of the power transmission means as described above, if the drive means 13 is operated first, the drive means 13-> reducer 35-> coupling 36-> drive support shaft ( 7)-> drive gear (10)-> ring gear (6)-> screen drum (3) in order to transmit the power to rotate the screen drum (3), drive means (13)-> reducer (35) )-> Coupling (36)-> Drive Support Shaft (7)-> First Gear (37)-> Second Gear (38)-> Sludge Feed Feeder (11) 11 will rotate.

In addition, in the present invention, the negative pressure forming means 40 is provided to increase the dewatering efficiency, and the negative pressure forming means is disposed below the screen drum 3 and, in particular, adjacent to the partition wall 20. Through this, the conventional screen drum (3) is provided inside the sludge to prevent perforation to prevent a phenomenon occurs or the dehydration efficiency is reduced.

Such power transmission means of the present invention has a simple structure compared to the conventional techniques using the sprocket, chain, etc., easy to manufacture, there is no problem such as reducing the tension of the chain during use, there is less trouble occurs and give additional tension There is a feature that means is not necessary.

1: Drum Centrifugal Concentrator with Concentrate Transfer
2: outer case
3: screen drum 4: member for supporting both ends
5: member for intermediate support 6: ring gear
7: drive support shaft and idle support shaft 8: support
10: Drive Gear 11: Sludge Feed Feeder
13: drive means 14: side wall
15: Cover 16: Odor collection flange
17: Inspection window 18: Sludge inlet
19: sludge discharge part 20: partition wall
21: treatment water outlet 22: support rollers at both ends
23: diameter part 24: intermediate support roller
26: washing water supply piping
27: valve 28: bracket
29: drive means for washing water supply pipe 30: rotating plate
31: connection bar 35: reducer
36: coupling 37: first gear
38: second gear
40: negative pressure forming means

Claims (1)

Outer case,
A pair of screen drums formed of a hollow cylinder and formed with a plurality of holes to allow moisture in the sludge to pass therethrough
Both end supporting members each of which is coupled to both ends of each screen drum, and formed in a ring shape having a hollow portion therein
A pair of intermediate support members, which are spaced apart from each other at the center of each screen drum, are formed in a ring shape having a hollow portion therein,
A ring gear positioned between the pair of intermediate support members,
A driving support shaft and an idle support shaft installed at a lower side of each screen drum in parallel with the screen drum, the both ends of which are rotatably supported by bearings on both side walls of the outer case;
A support portion supporting an intermediate portion of the drive support shaft and the idle support shaft,
A plurality of support rollers installed on the driving support shaft and the idle support shaft so as to be concentric with the support shaft, the support roller supporting the screen drum in contact with the both ends of the support member and the intermediate support member;
It is installed on the drive support shaft, characterized in that it comprises a drive gear coupled to the ring gear
Drum Centrifugal Concentrator with Concentrate Transfer

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