KR102045512B1 - The horizontal paddle type coagulation with improved leakage prevention that have a shaft seal - Google Patents

Abstract

The present invention relates to a horizontal paddle type coagulation device with an improved leakage preventing structure having a shaft seal. More particularly, the present invention relates to a horizontal paddle type coagulation device, consisting of a coagulation bath having an open-top, a machine room formed in a space separated from the coagulation bath, a drive unit consisting of a drive sprocket and a driven sprocket, a rotating shaft extending horizontally, a stirring device consisting of a support rod and a paddle mounted on the support rod and a shaft sealing device mounted on a rotating shaft.

Description

The horizontal paddle type coagulation with improved leakage prevention that have a shaft seal}

The present invention relates to a horizontal paddle-type agglomerator having an improved leakage preventing structure having a shaft sealing device, and more specifically, to a flocculation paper from a machine room in a facility that is installed in a flocculation paper into which raw water is introduced to agglomerate floating materials and drop it. Axons were developed to reduce the risk of downtime due to flooding of the machine room by developing a stable and effective means to prevent water from entering the machine room into the machine room between the gaps through which the rotating shaft rotates through the paddle. A horizontal paddle-type agglomerator with improved leakage prevention structure with a device is provided.

In facilities that treat water and sewage, households first mix flocculants to remove various suspended substances, flocculate flocs, which are suspended substances, and precipitate them to make them relatively clear. It goes through the process.

In the flocculation paper, in order to increase the reaction efficiency after chemical injection, a support rod is installed on the rotating shaft which is formed at a certain height at the bottom of the flocculation paper, and a paddle is installed in the direction perpendicular to the support bar to stir the treated water when the chemical is injected in the flocculation paper during rotation. Doing.

At this time, due to the environment exposed to pollutants and flocculation, the rotating shaft is impossible to install the driving part on the ground and to connect the chain and the sprocket immersed in water, so the motor is provided in a separate machine room separate from the flocculating paper. It is mounted through the agglomeration paper and the machine room, and then rotates by a motor.

However, the part that comes into close contact with the rotating shaft by the constantly rotating rotating shaft has been recognized as a facility that requires periodic management of the operator due to the leakage of water from the flocculated paper into the machine room, even though the watertight treatment is performed.

Therefore, it was cumbersome to install the pumping equipment inside the machine room, but securing watertightness in the penetrating wall so that the treated water does not flow into the machine room requires considerable technology, and there was a disadvantage in that perfect watertightness was hardly achieved.

In this regard, Korea Patent Registration No. 10-1552965-0000 (2015.09.08), filed and filed by the present applicant, tried to solve this problem by inserting and pressing a plurality of 'V' shaped rubber pads. Over time, the rubber pads hardened and abraded due to various reasons such as contact with water mixed with chemicals and numerous vibrations during operation, requiring periodic replacement.

In addition, the torsion moment and the bending moment act on the rotating shaft during operation. Therefore, when the welding part of the flange connection part of the rotating shaft and the driving shaft occurs due to the shearing (cutting), There was a problem that caused a large cost due to major parts replacement.

(Patent Document 1) Korean Patent Registration No. 10-0208747-0000 (April 16, 1999) (Patent Document 2) Korean Patent Registration No. 10-0951601-0000 (March 31, 2010) (Patent Document 3) Korean Patent Registration No. 10-1020405-0000 (February 28, 2011) (Patent Document 4) Korean Patent Registration No. 10-1552965-0000 (September 08, 2015)

The present invention was developed to solve the above-mentioned problems, and an object thereof is to provide a complex means for maintaining watertightness so that water does not penetrate the machine room by a rotating shaft rotating through the machine room separated from the flocculation paper. In addition, the present invention is to develop a horizontal paddle type agglomerator having an improved leakage preventing structure having a shaft sealing device that is easy to remove and assemble for replacement of internal parts.

In addition, it is to develop a horizontal paddle-type agglomerator having an improved leak-proof structure with a shaft sealing device to be able to exchange and connect quickly and minimal parts when the flange connection portion of the existing rotation shaft and the drive shaft is damaged.

In order to achieve the above object, the present invention provides an agglomeration paper having an open top, a machine room formed in a space separated by the agglomeration paper and a partition wall, a drive sprocket and a drive sprocket rotated by a motor in the machine room. And a drive unit consisting of driven sprockets interlocked with each other by a chain, a rotating shaft extending from the driven sprocket, penetrating a partition wall, and extending horizontally to a flocculation paper, and a plurality of supporting rods and supporting rods mounted on the rotating shaft and extending in a normal direction. A horizontal paddle type agglomerator comprising a stirring device comprising a paddle and a shaft sealing device mounted to a rotating shaft passing through the partition wall to have a watertightness between the agglomeration paper and the machine room;

The partition wall is embedded in a through tube through which a rotating shaft penetrates, and the through tube includes a flange portion to which the outer diameter of the machine room side end is stepped and a plurality of first bolt holes formed along the flange portion;

The shaft sealing apparatus includes an outer housing having a shaft hole through which the rotating shaft penetrates in the center, a second bolt hole penetrating corresponding to the first bolt hole, and a housing insert portion in which the inner diameter of the flange portion is oppositely extended; ;

An O-ring inserted into the housing insert;

An outer housing having an inner housing having a sealing insert formed to correspond to the inner diameter of the housing insert to press the O-ring in close contact, and a center of the sealing shaft penetrating therethrough and having an outer diameter extending in a direction opposite to the flange portion;

The outer diameter is inserted in correspondence with the inner diameter of the sealing insert portion, the shaft hole is formed in the center through which the rotating shaft penetrates, a plurality of rubber pads having a 'V' shape of the cross section in the direction of the flange portion;

The outer diameter is inserted in correspondence with the inner diameter of the sealing insert portion and the center member is formed with a shaft hole through which the rotating shaft passes;

A flange having a same outer diameter as that of the flange and having a third bolt hole corresponding to the first to second bolt holes, coupled to the fixing bolt and the fixing nut, and having a screw hole in the inner diameter surface thereof;

The rotating shaft penetrates in the center, and one side of the outer diameter surface is provided with a coupling screw portion formed with a screw thread on the outer diameter surface to be coupled to the screw hole, and the other side is composed of a rotating housing in which a plurality of handle rods are formed extending in the normal direction from the outer diameter surface. It is characterized by.

In addition, the outer housing is further provided with a first and second seal mounting step of expanding the inner diameter sequentially stepwise toward the flange portion, a plurality of bolt holes are formed radially at regular intervals in the second seal mounting step. ;

A first mechanical seal inserted into the first thread mounting step;

The first mechanical seal is pressurized and fixed by a wrench bolt that is seated on the second thread mounting step and is coupled to the bolt hole, and the second mechanical seal is mounted on the contact surface of the second seal mounting step. Characterized in that configured.

In addition, the agglomerated paper is further provided with a support bulkhead extending from the bottom to the top;

A connecting shaft extending in the same line as the rotating shaft and having a first connecting flange formed at both ends thereof, a bearing housing mounted on an upper surface of the supporting partition wall to allow the connecting shaft to pass therethrough, and engaging with the first connecting flange in the direction of the rotating shaft. Is a rotation shaft connecting portion further formed of a coupling into which the rotation shaft is inserted;

And a plurality of rotation shafts connected to each other in such a manner as to be fixed by a pair of reamer bolts and nuts to simultaneously fix the coupling and the rotation shaft inserted into the coupling.

As described above, the present invention proposes a structure in which the shaft sealing device that maintains the watertightness of the rotating shaft penetrating between the separated machine chamber and the flocculation paper is composed of a combination of a compression mechanism sealer and an O-ring instead of a rubber pad used in the shaft sealing device. This prevents water from seeping and improves durability, which can increase the replacement cycle of parts for maintenance.

In addition, the connection between the rotating shaft and the connecting shaft to be made simply by the reamer bolt and nut is easy to assemble and there is an effect that can be replaced quickly if necessary replacement.

1 is a conceptual diagram according to an embodiment of the present invention
2 is a conceptual view from another direction according to an embodiment of the present invention;
3 is a partial cross-sectional view showing a driving unit and a shaft sealing apparatus according to an embodiment of the present invention.
Figure 4 is a cross-sectional view showing a shaft sealing apparatus according to an embodiment of the present invention
5 is a conceptual diagram showing a rotating shaft connecting portion according to an embodiment of the present invention

Accordingly, the configuration of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily understand and reproduce.

1 is a conceptual diagram according to an embodiment of the present invention, Figure 2 is a conceptual view seen from another direction according to an embodiment of the present invention, the aggregated paper 1, the open top and the aggregated paper 1 and Machine chamber (3) formed in the space separated by the partition wall (2), the drive sprocket 42 and the drive sprocket 42 and the chain 43 rotated by the motor 41 in the machine room (3) A driving part 4 formed of driven sprockets 44 interlocked by the driving shaft, a rotating shaft 5 extending from the driven sprockets 44, penetrating the partition wall 2, and extending horizontally to the flocculation paper 1, A stirring device 6 comprising a plurality of support rods 61 mounted on the rotation shaft 5 and extending in a normal direction, and a paddle 62 mounted on the support rods, and a rotation shaft 5 penetrating the partition wall 2. It comprises a shaft sealing device (7) mounted to have a watertightness of the flocculation paper (1) and the machine room (3) Denotes a horizontal paddle-type agglomerator with an axial seal.

This overall structure is a known technique, the present invention is the configuration of the shaft sealing device (7), when the rotation shaft 5 is to be connected in sequence to the structure of the flocculation paper (1) there is a change in the rotary shaft connecting portion ( The feature is that 8) is further configured.

In particular, the shaft sealing device 7 is secured to have a high durability and a long replacement cycle by applying a mechanical seal used in the shaft bearing device or shaft device to prevent the inflow of fluid through the shaft when the shaft penetrates.

In addition, the flocculation paper 1 forms a plurality of backing partitions 11 which are laid upwards from the bottom of the flocculation paper 1 to the bottom of the rotation shaft 5 so as to connect the rotation shafts 5, and the backing partitions 11 In order to form the rotary shaft connecting portion (8) to the top.

3 is a partial cross-sectional view showing a driving unit and a shaft sealing apparatus according to an embodiment of the present invention, Figure 4 is a cross-sectional view showing a shaft sealing apparatus according to an embodiment of the present invention, the partition 2 has a rotary shaft (5) ) Is formed in the through pipe 21 through which the through tube 21 is formed along the flange portion 211 and the flange portion 211 in which the outer diameter of the end of the side of the machine room 3 is expanded. A plurality of first bolt holes 212 are provided;

The shaft sealing device 7 includes a shaft hole 711 through which the rotating shaft 5 penetrates in the center, a second bolt hole 712 penetrating corresponding to the first bolt hole 212, and the flange portion ( An outer housing (71) having a housing inserting portion (713) in which the opposite inner diameter of 211 is extended stepwise;

An O-ring 72 inserted into the housing insert 713;

The outer diameter is inserted in correspondence with the inner diameter of the housing inserting portion 713 to press the O ring 72 in close contact, the center is formed through the rotating shaft 5 and the outer diameter extends in the opposite direction of the flange portion 211 An inner housing (73) having a sealing insertion portion (731) to be used;

The outer diameter is inserted corresponding to the inner diameter of the sealing insertion portion 731, and the shaft hole 100 through which the rotating shaft 5 penetrates is formed at the center thereof, and the cross section in which the surface in the direction of the flange portion 211 is recessed has a 'V' shape. A plurality of rubber pads 74 with;

The outer diameter is inserted in correspondence with the inner diameter of the sealing inserting portion 731 and the center member 75 is formed with a shaft hole 100 through which the rotating shaft 5 penetrates;

A third bolt hole 761 having the same outer diameter as the flange portion 211 and corresponding to the first to second bolt holes 212 and 712 is coupled by the fixing bolt 762 and the fixing nut 763. A flange 76 having a screw hole 764 on which an internal thread is formed;

The rotating shaft 5 penetrates in the center, and one side has a coupling screw portion 771 having a thread formed on the outer diameter surface to engage with the screw hole 764, and the other side is a plurality of extending in the normal direction from the outer diameter surface The horizontal paddle-type agglomerate having an improved leakage preventing structure having a shaft sealing device, characterized in that it consists of a rotating housing 77 in which two handle bars 772 are formed.

The biggest feature of the present application is to have a flange structure that can be coupled to the device in order to mount the watertight structure or the shaft sealing device through the through pipe 21, and the conventional outer housing 71 and the flange portion ( 211) is a shape that is directly welded to the through-pipe 21, but in this case it is difficult to proceed with the welding operation while supporting the weight is considerable.

In addition, vibrations and shocks generated are concentrated on the welded parts, which are easily damaged, causing frequent maintenance. The present application allows easy welding and fixing of a relatively light disc-shaped flange portion 211 so as to sequentially assemble different configurations. It is characterized by doing.

In addition, the present invention can effectively press the rubber pad 74 as a whole to the pressure pressing the rotary housing 77 by screwing in a way that can evenly press the rubber pad 74, can effectively obtain the water-tightness, wear In addition, the replacement cycle of the rubber pad 74 is increased evenly.

In addition, in the replacement operation, usually loosen four bolts, remove and replace the rubber pad 74, then tightening for reassembly is usually consumed several hours in the field, the present application handle bar 772 of the rotary housing 77 Grabbing and rotating work has the advantage that the work is easier and quickly done within an hour.

In addition, in the present invention, the outer housing 71 further includes first and second seal mounting steps 714 and 715 having an inner diameter extending stepwise in the direction of the flange portion 211, and a second seal mounting. A plurality of bolt holes 716 are formed radially at regular intervals in the step 715;

A first mechanical seal 78 inserted into the first seal mounting step 714;

The first mechanical seal 78 is pressurized and fixed by a wrench bolt 791 which is seated on the second thread mounting step 715 and is coupled to the bolt hole 716. An embodiment is characterized in that the second mechanical seal 79 is mounted to be mounted on the contact surface of the mounting step 715.

Sealing made of synthetic resin has excellent watertightness effect, but hardening can be progressed due to various reasons such as contact of heat and moisture due to friction, and the present application is precisely a part of a mechanical seal, that is, a shaft device, in such sealing means. The polished metal surface is lightly pressed, one side is fixed, and the other side is in sliding contact with the shaft to rotate to prevent the leakage of fluid.

That is, if the first prevents the inflow of water by the mechanical seal and mounts the sealing structure by the rubber pad 74 at the rear, the life of the life is increased because the rubber pad 74 can directly reduce the contact with the water to a minimum. It will be.

5 is a conceptual view showing a rotating shaft connecting portion according to an embodiment of the present invention, the aggregated paper (1) is further provided with a supporting partition wall (11) extending from the bottom to the top;

A connection shaft 82 extending in the same line as the rotation shaft 5 and having a first connection flange 81 formed at both ends thereof, and a bearing mounted on an upper surface of the support partition wall 11 to penetrate the connection shaft 82; A rotation shaft connecting portion 8 formed of a housing 83 and a coupling 84 coupled to the first connecting flange 81 and into which the rotating shaft 82 is inserted in the direction of the rotating shaft 5 is further formed;

The plurality of rotation shafts 5 in a manner fixed by a pair of reamer bolts 85 and nuts 86 to simultaneously fix the coupling 84 and the rotation shaft 5 inserted into the coupling 84 at the same time. ) Is an embodiment characterized in that is configured to be interconnected.

In the above embodiment, when the plurality of stirring devices 6 are to be rotated at the same time, if the rotating shaft 5 is infinitely long, the possibility of bending deformation during operation increases, and thus the bearing for smoothly rotating the rotating shaft 5. This built-in bearing housing (83) is formed, and by connecting the rotary shaft (5) to a separate connecting shaft 82 can reduce the bending deformation of the rotary shaft (5) and can only replace the parts that need to be replaced at the time of replacement It is to have a structure to make it.

In addition, the conventional method of welding a separate connection flange to the rotary shaft 5 is used for a long time, the phenomenon that the welding site is often sheared, but the embodiment is a hole for the reamer bolt 85 in the rotary shaft (5) If necessary, the outer diameter surface is finished by forming a key groove 87 to prevent slipping.

1: flocculation paper
11: support bulkhead
2: bulkhead
21: through tube
211: flange portion 212: first bolt hole
3: machine room
4: drive unit
41: motor 42: drive sprocket
43: chain 44: driven sprocket
5: axis of rotation
6: stirring device
61: support rod 62: paddle
7: shaft sealing device
71: outer housing
711 axle hole 712 second bolt hole
713: housing insert 714: first seal mounting step
715: second chamber mounting step 716: bolt hole
72: O ring
73: internal housing
731: sealing insert
74: rubber pad
75: jungle member
751: pressure protrusion
76: flange
761: third bolt hole 762: fixing bolt
763: fixing nut 764: screw hole
77: rotating housing
771: coupling screw 772: handle bar
78: first mechanical seal
79: second mechanical seal
791: Wrench bolt 792: O-ring for leak
8: rotary shaft connection
81: first connecting flange 82: connecting shaft
83: bearing housing 84: coupling
85: reamer bolt 86: nut
87: keyway

Claims (3)

Agglomerated paper 1 having an open top, a machine room 3 formed in a space separated by the agglomerated paper 1 and a partition wall 2, and rotated by a motor 41 in the machine room 3. A driving portion 4 consisting of a driven sprocket 42 and a driven sprocket 44 interlocked by the driving sprocket 42 and a chain 43 and extending from the driven sprocket 44 to penetrate the partition 2. Then, the stirring device consisting of a rotating shaft (5) extending horizontally to the coagulation paper (1), a plurality of supporting rods (61) mounted on the rotating shaft (5) and extending in the normal direction and a paddle (62) mounted on the supporting rods. (6) and a shaft sealing device (7) attached to the rotating shaft (5) penetrating the partition (2) to have a watertightness of the coagulation paper (1) and the machine room (3), and the partition (2) ) Is embedded in the through tube 21 through which the rotating shaft 5 penetrates, and the outer diameter of the end of the machine room 3 side is stepped in the through tube 21. And to flange portion 211 that extends, provided with a plurality of first bolt holes 212 formed along the flange portion (211); The shaft sealing device 7 includes a shaft hole 711 through which the rotating shaft 5 penetrates in the center, a second bolt hole 712 penetrating corresponding to the first bolt hole 212, and the flange portion ( An outer housing (71) having a housing inserting portion (713) in which the opposite inner diameter of 211 is extended stepwise; An O-ring 72 inserted into the housing insert 713; The outer diameter is inserted in correspondence with the inner diameter of the housing inserting portion 713 to press the O ring 72 in close contact, the center is formed through the rotating shaft 5 and the outer diameter extends in the opposite direction of the flange portion 211 An inner housing (73) having a sealing insertion portion (731) to be used; The outer diameter is inserted corresponding to the inner diameter of the sealing insertion portion 731, and the shaft hole 100 through which the rotating shaft 5 penetrates is formed at the center thereof, and the cross section in which the surface in the direction of the flange portion 211 is recessed has a 'V' shape. A plurality of rubber pads 74 with; The outer diameter is inserted in correspondence with the inner diameter of the sealing inserting portion 731 and the center member 75 is formed with a shaft hole 100 through which the rotating shaft 5 penetrates; A third bolt hole 761 having the same outer diameter as the flange portion 211 and corresponding to the first to second bolt holes 212 and 712 is coupled by the fixing bolt 762 and the fixing nut 763. A flange 76 having a screw hole 764 on which an internal thread is formed; The rotating shaft 5 penetrates in the center, and one side has a coupling screw portion 771 having a thread formed on the outer diameter surface to engage with the screw hole 764, and the other side is a plurality of extending in the normal direction from the outer diameter surface In the horizontal paddle-type agglomerator having an improved leakage preventing structure having a shaft sealing device composed of a rotating housing 77 in which two handle bars 772 are formed,
The outer housing 71 further includes first and second seal mounting steps 714 and 715 having an inner diameter extending stepwise in the direction of the flange portion 211, and a second seal mounting step 715. The plurality of bolt holes 716 are radially formed at regular intervals;
A first mechanical seal 78 inserted into the first seal mounting step 714;
The first mechanical seal 78 is pressurized and fixed by a wrench bolt 791 which is seated on the second thread mounting step 715 and is coupled to the bolt hole 716. A horizontal paddle-type agglomerator with improved leakage preventing structure with a shaft sealing device, characterized in that the second mechanical seal (79) mounted on the contact surface of the mounting step (715) is mounted. delete delete

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