KR101738860B1 - crusher for pump of water treatment device - Google Patents

Abstract

According to the present invention, a pump inlet crusher of a water treatment device comprises: a first and a second shaft formed in parallel with each other in one direction; a plurality of first division cutters having a rotary crushing blade form penetrating the first shaft through a first cutter penetration hole to be coupled and having a concave center stepped unit on a first side surface; a plurality of second division cutters having a rotary crushing blade form penetrating the second shaft through a second cutter penetration hole to be coupled and having a concave center stepped unit on a first side surface; at least one first spacer which has a disk form penetrating the first shaft through a first spacer penetration hole to be coupled, is installed between two adjacent first division cutters, and allows a portion of a thickness thereof to be inserted into any one center stepped unit among the two adjacent first division cutters; and at least one second spacer which has a disk form penetrating the second shaft through a second spacer penetration hole to be coupled, is installed between two adjacent second division cutters, and allows a portion of a thickness thereof to be inserted into any one center stepped unit among the two adjacent second division cutters. The first and second division cutters overlap each other and are alternately placed to be rotated in an area between the first and the second spacer. The first division cutters or the second division cutters consist of a plurality of pieces which can be separated from the first shaft or the second shaft when moving in parallel on a plane.

Description

Technical Field [0001] The present invention relates to a crusher for a water treatment apparatus,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a crusher of a water treatment apparatus, and more particularly to a crusher installed in a pump suction unit of a water treatment apparatus.

Inside the waterway constructed in the banks of rivers and rivers, drainage pumping and drainage pumping stations, sewage pipe structures, etc., water gates that are opened or closed by vertical wing, descending or horizontal rotation are usually installed. These water gates normally drain the upstream water to the downstream water through the opening and shut off when the water level rises above the water level due to flood. However, when the domestic water level becomes higher due to the closure, and the water is not continuously drained, flooding due to the domestic water and the flooding occur, so that forced discharge to the outside through the pump is performed.

In such a case, a pump embedded in the body of the watercraft which is opened and closed is operated in a state in which the water gate is closed, so that the water is forcedly drained to the outside water. At this time, if there is a large lump matter (dirty substance) contained in the domestic water flowing into the pump in operation, the pump may be damaged due to the inflow of these substances, and the operation may be interrupted.

Therefore, in order to prevent this problem, a crusher is installed to crush the impurities at the front end (inlet portion) of the pump to prevent damage to the pump.

Wastewater or wastewater liquor from sewage or sewage treatment plants may damage the pump or other facilities in the inlet, or may damage the function. In order to prevent such problems, a crusher can be installed at the inlet.

The crusher needs to be formed of materials with mechanical stiffness so as to maintain durability while sufficiently breaking the incoming lump materials. Also, among the contaminants, there are some long-lasting substances, so that it is necessary to break or tear the contaminants in order to prevent these substances from getting entangled in the pump. Therefore, the crusher needs to have a blade structure so that the crusher can have a chopping function rather than simply a small crushing roller.

1 is a front sectional view showing an example of a conventional crusher 1.

One of the three shafts formed in the vertical direction is the main shaft 2 and the other two are the driven shafts 3 and 4. The rotatable shredding blades 8 and 9 having the substantially disk- And are connected to each other. Each of the shafts has a polygonal column shape, and the rotary shredding blade has a polygonal hole through which the polygonal column can be inserted. The main shaft 2 coupled to the motor M has a plurality of first rotating shredding blades, a driven shaft thereof is coupled to the shredding blades while passing through a plurality of second rotating shredding blades, and the main shaft 2 and the driven shafts 3 and 4 are rotated together by engagement of the gears 5, 6 and 7 provided on the respective shafts. A spacer ring (not shown) is provided between the plurality of first rotating and rotating blades and between the plurality of second rotating and rotating blades to have a predetermined distance between the rotating and breaking blades. As a result, the first rotary crushing blade and the second rotary crushing blade are alternately installed while being overlapped with each other in part, and are rotated while being vertically engaged.

However, when the crusher has a sharp-blade structure at the end, the solid material may be mixed in the agglomerated material. Therefore, when such a material contacts the weak portion of the blade, the force is concentrated, and some blades are damaged. You may not be able to do it properly.

Therefore, if such damage occurs, the damaged rotating blades should be removed from the shaft and a new rotating blades shall be inserted to replace them. However, in order to remove the intermediate rotary crushing blade, a plurality of rotary crushing blades are stacked on the shaft in a laminated state, and then all of the upper rotation crushing blades are once removed, and then the broken rotary crushing blade is removed and replaced with a new one There is a problem that it is necessary to fit the upper rotating blade to the shaft again.

In this case, a long time is required for repairing and replacing the rotary crushing blade, and even if urgent operation is required, serious damage may occur due to interruption of operation of the entire facility where the pump is installed due to repair replacement.

Korean Registered Patent No. 10-1055171: Sprinkler and integrated pump-type water gate

Disclosure of Invention Technical Problem [8] The present invention is to solve the above-described problems of the prior art water treatment facility pump suction unit crusher, and it is an object of the present invention to provide a pump suction unit crusher of a water treatment apparatus capable of easily replacing a broken- And to provide the above-mentioned objects.

An object of the present invention is to provide a pump sucker crusher of a water treatment apparatus capable of increasing the efficiency of crushing lump matter contained in treated water through an improved construction.

According to an aspect of the present invention, there is provided a water purifier pump sucker crusher,

A first shaft and a second shaft formed parallel to each other in one direction,

A plurality of first split cutters each having a rotary crushing blade shape penetratingly connected to the first shaft through a first cutter through hole and having a concave central step portion on a first side surface,

A plurality of second split cutters each having a shape of a rotating crushing blade penetrating through the second shaft through the second cutter through hole and having a concave central step portion on the first side surface,

A first spacer penetrating through the first spacer through hole and having a disk shape and being inserted between two adjacent first split cutters and having a thickness partially inserted into the central step of one of the adjacent two first split cutters At least one first spacer,

The first shaft having a circular plate shape penetrating through the second shaft through the second spacer through hole and provided between two adjacent second split cutters and having a thickness partially inserted into the center step of one of the adjacent two second split cutters And at least one second spacer,

Wherein the first split cutter and the second split cutter overlap each other in a space between the first spacer and the second spacer when viewed in the one direction,

Wherein the first split cutter or the second split cutter includes a plurality of pieces that can be separated from the first shaft or the second shaft when the first split cutter or the second split cutter moves in parallel on a plane viewed from the one direction.

In the crusher of the present invention, the spacer may be provided with a plurality of grooves on a circumferential surface corresponding to the circumference of the circle seen in the one direction, and the edge forming the grooved inlet may serve as a blade for catching the contaminants.

In the crusher of the present invention, the first spacer or the second spacer may be provided with a plurality of pieces that can be separated from the first shaft or the second shaft when the first spacer or the second spacer moves in parallel on a plane viewed from the one direction.

In the crusher of the present invention, the split cutter and the spacer, which is inserted and overlapped with a part of the thickness by using the step of the split cutter, is parallel to the first shaft or the second shaft on the plane viewed from the one direction at the time of mutual fastening using the stepped portion And may have banded projections and corresponding grooves projecting in one direction on the mutual contact surfaces of the stepped regions so as to limit their movement (to limit radial outward translation) when intended to move.

According to the present invention, it is not necessary to remove the other split cutters on one side of the split cutter from the shaft in order to replace one intermediate one of the split cutters stacked while being passed through the shaft, Easily replaced, reducing repair time and effort required for repair replacement.

According to an aspect of the present invention, an improved construction can increase the efficiency of crushing lumpy material contained in treated water.

1 is a front view showing the structure of a conventional crusher,
FIG. 2 is a front view showing an overall configuration of a water-channel type crusher according to an embodiment of the present invention;
FIG. 3 is a side view showing the overall configuration of a channel type crusher according to an embodiment of the present invention;
Figure 4 is a perspective top view and corresponding partial top cross-sectional view illustrating in greater detail the coupling between shafts, split cutters, and spacers of a shredder according to one embodiment of the present invention,
5 is a plan view showing a split cutter and a spacer coupled thereto, respectively, of a shredder according to an embodiment of the present invention,
Figure 6 is a plan view and corresponding partial top cross-sectional view illustrating in greater detail the coupling between the shafts, split cutters, and spacers of the shredder according to another embodiment of the present invention;
7 is a plan view showing a split cutter and a spacer coupled thereto, respectively, of a crusher according to another embodiment of the present invention.
FIG. 8 is an enlarged partial detail side view showing an enlarged view of the mutual contact surface protrusions and corresponding groove engaging portions for preventing the split cutter portions and the spacer portions from separating from each other and separating from the shaft when the split cutter and the corresponding spacer are combined, Sectional view.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail with reference to the accompanying drawings.

2 and 3 are a front view and a side view showing an overall structure of a channel type crusher according to an embodiment of the present invention.

Here, the first shaft 40 constituting the main shaft of the crusher and the second shaft 50 constituting the subordinate shaft are installed on the water channel wall 80 in parallel with each other in the up-and-down direction. A driving motor 10 for generating a rotational power and a connecting shaft 20 for transmitting rotational power to the first shaft 40 are provided above the water channel wall 80 and connected to the first shaft 40 in a straight line do.

The second shaft 50 receives rotational force from the first shaft 40 through a gear box or other means not shown, the rotational direction is opposite to the first shaft 40, and the rotational speed is greater than that of the first shaft 40 And is installed to rotate with a somewhat smaller number of revolutions.

A plurality of first split cutters 60 and a second split cutter 70 are vertically stacked on the respective shafts through a shaft.

Figure 4 is a perspective top view and corresponding partial top cross-sectional view illustrating in greater detail the coupling between shafts, split cutters, and spacers of a shredder according to an embodiment of the present invention, and Figure 5 is a cross- Fig. 7 is a plan view showing a split cutter and a spacer coupled thereto.

A plurality of first split cutters 60 and a plurality of second split cutters 70 are provided in the first shaft 40 and the second shaft 50 formed in parallel to each other in the vertical direction, And the second spacers 170 so as to be vertically spaced apart from each other.

The first and second split cutters 60 and 70 and the first and second spacers 160 and 170 are generally close to one disc when viewed from the top, but the first split cutter 60, for example, The first spacer 160 is separated into two portions 60a and 60b which are symmetrical with respect to each other by a single radial line. Each of the first spacers 160 includes two portions 160a And 160b, and these two portions are coupled to each other through the coupling means to form respective first and second split cutters and first and second spacers. Hereinafter, when referring to a split cutter or a spacer, it generally means a split cutter or a spacer in which two parts are combined.

The first and second shafts 40 and 50 are hexagonal columns having a hexagonal section in cross section. The center of each of the split cutters 60 and 70 and the spacers 160 and 170 is passed through hexagonal columns, For example, a through-hole 62 of the first split cutter and a through-hole 162 of the first spacer are formed so as to be fitted into the through hole 62 of the first spacer.

  Specifically, the split cutter has a shape of a rotary blade in which the peripheral portion is not a simple circumference but a blade at a constant pitch when viewed from a plan view, and a central portion around the hexagonal through hole has a surface with a lower surface than the outer portion, Thereby forming a stepped portion 64. [ This stepped portion 64 is filled with a part of the thickness of the lower end of the spacer.

In addition, the outer periphery of the spacer 160 is formed with a large number of U-shaped small grooves 164 at a constant pitch rather than a simple circle on a plan view in the vertical direction. The groove 164 is formed to form a linear valley over the entire thickness of the spacer 160 and the entrance of the U-shaped groove where the groove 164 meets the outer circumferential surface of the spacer 160 forms an angular edge like a blade do.

The first split cutter 60 inserted through the first shaft 40 and the second split cutter 70 penetratingly coupled to the second shaft 50 are arranged in the vertical direction The outer circumferential surface of the first split cutter 60 is opposed to the outer circumferential surface of the second spacer 170 while facing each other in the interval between the spacer 160 and the second spacer 170, The outer circumferential surface is rotated while facing the outer circumferential surface of the first spacer 160.

Therefore, in this configuration, when the crusher is operated and the first and second shafts are rotated, the impurities are caught by the respective blades of the first and second divided cutters 60 and 70 and moved between the two shafts 40 and 50, Is subjected to the action of being crushed by pressure while passing through the narrow space between the one-piece cutter 60 and the second spacer 170 and between the second split cutter 70 and the first spacer 160, And the grooves 164 of the outer circumferential surfaces of the spacers 160 and 170), and is also torn or torn by the difference in rotation speed.

If the blades or grooves 164 on the outer circumferential surface of any one of the split cutters 60 and 70 or the spacers 160 and 170 are damaged, the shafts 40 and 50 passing through the blades are disassembled by the shredder, It is not necessary to once pull out all of the split cutters or spacers located above the corresponding split cutters 60 and 70 or the spacers 160 and 170 from the shafts.

Instead, in such a configuration, only the fastening screw that closely contacts the split cutters 60 and 70 or the spacers 160 and 170, and the split cutter-spacer engagement pair above the split cutter-spacer engagement pair to which the damaged split cutter or spacer belongs So that it is pushed up slightly in a state of passing through the shafts 40 and 50, thereby securing a space required for repair and replacement.

Then, in the damaged split cutter-spacer pair in which the space is secured and can freely move up and down, the coupling using the stepped portion 64 between the split cutters 60 and 70 and the spacers 160 and 170 is released, It is assumed that the divided cutter which is damaged more easily than the spacer is damaged, the two parts constituting the split cutter are separated from each other and moved in parallel in the plane to be removed from the shaft. Thereafter, in reverse order, the removed split cutter dies are combined so that the two parts of the new split cutter are wrapped around the shaft, the pair of spacers are combined using the stepped portion, the upper split cutter and the spacers are lowered The split cutter and the spacers are brought into close contact with each other, the fastening screw is tightened to restore the engaged state of the shaft and the split cutter and the spacer, and the crusher operation can be performed.

The means for maintaining the engaged state of the divided cutter 60 or the two portions 60a, 60b or 160a, 160b of the spacer 160 without departing from the shaft 40 in the coupling of the split cutter- Although not mentioned, a method of using a separate joining member such as a method of engaging a joining member such as a C-shaped latch to be embedded in the groove is formed by symmetrically engaging a concave portion at a near portion where the two portions are joined .

Fig. 6 is a plan view and corresponding partial top cross-sectional view showing in greater detail the coupling between the shafts, split cutters and spacers of the shredder according to another embodiment of the present invention, and Fig. 7 is a sectional cutter of the shredder according to this embodiment, Respectively.

Although the first and second split cutters 60 and 70 and the first and second spacers 160 and 170 are formed in two parts symmetrical to each other in a plan view in this embodiment, .

More specifically, the crusher elements of this embodiment are common to the previous embodiment and most of the elements, but they can also be used in the contact surfaces between the split cutter 60 and the spacer 160, A protrusion 68 is provided on the upper surface of the through hole 62 or 162 and a corresponding groove 168 for accommodating the protrusion 68 is formed on the other surface of the spacer. 8 is a partial detail side cross-sectional view showing an enlarged view of a projection 68 and a corresponding groove 168 engaging portion for engaging a split cutter and a spacer in another embodiment of the present invention.

According to such a configuration, mutual movement in the direction of the shaft 40 (up and down) is possible, but in the state where the split cutter 60 and the spacer 160 are coupled to each other, the two parts 60a and 60b Or 160a and 160b are spaced apart from the shaft 40 in the horizontal plane perpendicular to the shaft 40 or falling in opposite directions to each other are caused by the engaging jaw action or frictional force between the protrusions 68 and the corresponding grooves 168 .

However, in this case, a dividing line (diameter line) for dividing the two portions 60a and 60b of the split cutter and a dividing line (diameter line) for dividing the two portions 160a and 160b of the spacer, The rotation positions of the through holes and the shaft should be determined so that they do not overlap with each other. For example, it is preferable that the two split lines are mutually orthogonal as shown in the drawing.

In the above embodiments, both the split cutter and the spacer are each formed by a combination of two separate parts, but according to an embodiment, only the split cutter that is most likely to be damaged can be replaced in this manner, As shown in Fig.

In addition, the split cutter and the spacer can be separated into two parts as well as three parts or four parts, and it is possible to prevent separation or mutual separation from the shaft when coupling using the stepped surfaces of the split cutter and the spacer pair The projections and the corresponding groove engaging portions of the mutual contact surfaces are not necessarily formed in a continuous circumferential shape when viewed from a plan view, but can also be formed of discrete arcs.

While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. That is, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

10: drive motor 20: connection shaft
40, 50: shaft 60, 70: split cutter
62, 162: through hole 64: stepped portion
68: projection 160, 170: spacer
168, 178: corresponding grooves

Claims (5)

A first shaft and a second shaft formed parallel to each other in one direction,
A plurality of first split cutters each having a rotary crushing blade shape penetratingly connected to the first shaft through a first cutter through hole and having a concave central step portion on a first side surface,
A plurality of second split cutters each having a shape of a rotating crushing blade penetrating through the second shaft through the second cutter through hole and having a concave central step portion on the first side surface,
A first spacer penetrating through the first spacer through hole and having a disk shape and being inserted between two adjacent first split cutters and having a thickness of at least one of the two adjacent first split cutters, At least one first spacer,
And a plurality of second split cutters each having a disk-like shape penetratingly coupled to the second shaft through a second spacer through-hole and provided between two adjacent second split cutters, At least one second spacer,
Wherein the first split cutter and the second split cutter are arranged so as to alternately overlap and rotate in a region between the first spacer and the second spacer when viewed in the one direction,
Wherein the first split cutter or the second split cutter includes a plurality of pieces that can be separated from the first shaft or the second shaft when the first split cutter or the second split cutter moves in parallel on a plane viewed from the one direction,
Wherein the first spacer or the second spacer includes a plurality of pieces that can be separated from the first shaft or the second shaft when the first spacer or the second spacer moves in parallel on a plane viewed from the one direction,
Wherein the first spacer and the second spacer are provided with a plurality of U-shaped grooves on a circumferential surface corresponding to the circumference of a circle viewed in the one direction, forming a valley in the thickness direction, and the depth of the valley of the U- Is formed so as to form a groove with a depth smaller than that of the rotary crushing blade, the edge forming the entrance of the U-
Wherein the first shaft and the second shaft are rotated at different rotational speeds so that the individual blades of the first split cutter and the second split cutter and the edges of the second spacer and the U- Characterized in that the impurities are torn or torn by the difference in rotational speed between the making blades. delete delete The method according to claim 1,
The first spacer or the first spacer has a protrusion protruding in one direction on the first side surface (back surface) of the first spacer or the second spacer and contacting the step portion of the first split cutter or the second split cutter, Corresponding grooves are formed respectively
In the state where the stepped portion of the first split cutter or the second split cutter and the first spacer or the second spacer are coupled to form a pair, the plurality of pieces of the first split cutter or the second split cutter And the second shafts are prevented from being separated from the first shafts or the second shafts. 5. The method of claim 4,
Wherein the projections and the corresponding grooves are formed in a circumferential shape at the central stepped portion.

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