KR101070478B1 - Sludge reservoir opening and closing device with vibrating screen - Google Patents

Abstract

Disclosed is a sludge reservoir opening and closing device having a vibrating screen portion. Sludge storage tank opening and closing device provided with a vibrating screen portion of the present invention, the door drive unit for operating the input door to open and close the inlet of the sludge storage tank; And a vibrating screen portion provided below the input door, wherein the vibrating screen portion comprises: a vibrating screen; A support frame for supporting the vibrating screen; And a vibration motor for imparting vibration to the vibration screen. According to the present invention, not only can the operator accidentally fall into the sludge storage tank inadvertently, but also prevent the occurrence of safety accidents, and can also filter foreign substances contained in the sludge introduced into the sludge storage tank, and the sludge particles are entangled with each other. Sticking can be prevented.

Description

Sludge tank opening and closing device equipped with a vibrating screen unit {OPENNING AND CLOSING APPARATUS FOR SLUDGE RESERVOIR HAVING VIBRATION SEREEN PART}

The present invention relates to a sludge storage tank opening and closing device provided with a vibrating screen portion, and more particularly, it is possible to prevent workers from accidentally falling into the sludge storage tank inadvertently, as well as input into the sludge storage tank. It relates to a sludge storage tank opening and closing device having a vibrating screen that can filter foreign matter contained in the sludge to prevent the sludge particles are entangled with each other.

Typically, raw water or sewage treated in purified water and sewage and wastewater treatment plants contains a large amount of solids of various components including various organic substances, and these solids are accumulated through sedimentation and filtration during water and sewage and wastewater treatment. This is called sludge.

Most of these sludges are stored in sludge storage tanks and then transported to landfills, which are used in some farmland or as food for earthworms.

Specifically, the sludge generated in the sewage treatment plant is stored in a sludge storage tank provided in the sewage treatment plant, and when the sludge is almost filled in the sludge storage tank, the sludge is transported to a treatment truck or moved to a landfill site.

On the other hand, the sludge storage tank is composed of a storage body that provides a space for storing the sludge and an input door for opening and closing the opening of the storage body, conventionally to prevent the fall of the operator or to filter the foreign matter contained in the sludge under the input door. Since a separate filtering device is not provided, a safety accident in which the worker falls into the sludge storage tank may occur due to carelessness during the operation, and a problem that the foreign matter contained in the sludge may not be filtered out.

It is an object of the present invention, not only can the operator accidentally fall into the sludge storage tank inadvertently, but also to prevent the occurrence of safety accidents, as well as to filter the foreign matter contained in the sludge introduced into the sludge storage tank, the sludge particles are mutually It is to provide a sludge storage tank opening and closing device provided with a vibrating screen portion that can be prevented from being tangled.

The solution to the problem of the present invention is not limited to those mentioned above, and other solutions not mentioned can be clearly understood by those skilled in the art from the following description.

The object is, according to the present invention, the door drive unit for operating the input door to open and close the inlet of the sludge storage tank; And a vibrating screen portion provided below the input door, wherein the vibrating screen portion comprises: a vibrating screen; A support frame for supporting the vibrating screen; And it is achieved by the sludge storage tank opening and closing device provided with a vibration screen portion, characterized in that it comprises a vibration motor for imparting vibration to the vibration screen.

The vibrating screen unit may include: a support bracket mounted to a concrete wall provided in a lateral direction of the support frame to support the support frame; And a damper provided between the support bracket and the support frame.

The damper may be a spring or rubber.

The vibration screen, the support frame and the support bracket is made of a stainless material, the vibration screen is composed of a plurality of grid, the size of the mesh constituting the grid is 30mm × 60mm or 60mm × 60mm The vibrating screen can be welded to the support frame.

The input door has a rotating shaft rotatably installed with respect to the sludge input guide body disposed above the vibrating screen portion, the door drive unit, the door automatic drive unit for automatically rotating the input door and the input door It may include a door manual driving unit for manually rotating.

The door automatic driving unit includes an arm portion connected to the rotating shaft of the input door; And a cylinder unit installed to connect a cylinder rod to an end of the arm unit, and the arm unit and the input door may rotate by the operation of the cylinder unit.

The door manual driving unit may include a manual handle bar connected to the rotating shaft of the input door.

Further comprising a door rotation limiting unit for limiting the rotation angle of the input door, the door rotation limiting portion, the stopper protruding on the outer peripheral surface of the rotating shaft; And a limit switch unit installed to be spaced apart from the rotation shaft to detect rotation of the input door through contact with the stopper.

The limit switch unit may include an upper rotation detecting unit detecting a lower direction rotation of the closing door; And a lower rotation sensing unit installed under the upper rotation sensing unit to sense an upward rotation of the input door, wherein the upper rotation sensing unit and the lower rotation sensing unit each include a rotation sensing unit body; And a contact sensing piece installed on the rotation sensing unit body and rotatably installed in contact with the stopper.

And a control unit for controlling the operation of the vibration motor and the cylinder unit, wherein the control unit operates the cylinder unit according to an operation signal applied from the outside, and thereafter, the stopper receives the detection signal of the limit switch unit to contact the piece. When it is detected that the contact with the stop the operation of the cylinder portion, and after a certain time elapses the operation of the cylinder portion may operate the vibration motor or stop the operation of the vibration motor in operation.

And a control unit for controlling the operation of the vibration motor and the cylinder unit, wherein the vibration screen unit further includes a detection sensor detecting whether the input door is opened, and the control unit transmits a detection signal of the detection sensor. If the input door is detected to be open can operate the vibration motor.

The sensor may be an optical sensor or an infrared sensor.

According to the present invention, the operator can inadvertently prevent the safety accident from falling into the sludge storage tank inadvertently, and can also filter foreign substances contained in the sludge introduced into the sludge storage tank, and the sludge particles are entangled with each other. Sticking can be prevented.

The effects of the present invention are not limited to those mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the following description.

1 is a cross-sectional view showing a state in which a sludge storage tank opening and closing device provided with a vibrating screen unit according to an embodiment of the present invention is installed.
2 is a plan view of FIG. 1.
3 is a view showing a coupling relationship between the input door and the door driving unit in the sludge storage tank opening and closing device provided with a vibrating screen portion according to an embodiment of the present invention.
FIG. 4 is a plan view illustrating a vibrating screen unit installed in FIG. 1.
5 is a block diagram showing a control relationship of the sludge storage tank opening and closing device provided with a vibrating screen unit according to an embodiment of the present invention.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is a cross-sectional view showing a state in which a sludge storage tank opening and closing device provided with a vibrating screen portion according to an embodiment of the present invention, Figure 2 is a plan view of Figure 1, Figure 3 is a vibration screen according to an embodiment of the present invention In the sludge storage tank opening and closing device provided with the addition is a view showing a coupling relationship between the input door and the door drive unit, Figure 4 is a plan view showing a state in which the vibration screen unit is installed in Figure 1, Figure 5 is a vibration according to an embodiment of the present invention It is a block diagram which shows the control relationship of the sludge storage tank switchgear provided with a screen part.

As shown in these drawings, the sludge storage tank opening and closing device (hereinafter referred to as "opening and closing device") provided with a vibrating screen portion according to an embodiment of the present invention, to open and close the inlet 111 of the sludge storage tank 110. It includes a door driving unit 130 for operating the input door 120, and a vibration screen unit 150 provided on the lower side of the input door 120.

First, the installation of the sludge storage tank 110, the vibration screen 150 and the sludge input guide body 170 to be described later briefly described, as shown in Figure 1, the sludge storage tank 110 is buried in the ground The concrete wall 160 is installed through concrete pouring in the upper peripheral area of the sludge storage tank 110. On the upper side of the concrete wall 160, the sludge input guide body 170 is provided with an input door 120 is installed.

Opening and closing device according to the present embodiment by providing a vibrating screen 150, when the foreign material is included in the sludge introduced into the inlet 111, and also to filter the foreign matter and the sludge more easily and quickly Not only to fall into the sludge storage tank 110 to be accommodated, but also to prevent the sludge particles from tangling with each other to be fixed. In addition, the vibrating screen unit 150 may prevent the damage of the sludge storage tank 110 and other peripheral components by the foreign matter by filtering the foreign matter contained in the sludge. In addition, the vibration screen unit 150 prevents a worker from inadvertently falling into the sludge storage tank 110 when the input door 120 is opened, thereby preventing the occurrence of a safety accident.

As shown in FIG. 1 and FIG. 2, the input door 120 has a rotating shaft 121 rotatably installed with respect to the sludge input guide body 170 disposed above the vibrating screen unit 150.

In this embodiment, as shown in Figure 2, the input door 120 is installed in pairs to open or close the inlet 111 of one sludge storage tank 110, a pair of input door 120 ) Is rotatable through the rotary shaft 121 is rotatably installed in the sludge input guide body 170 through a bearing or the like. However, the present invention is not limited thereto, and one inlet door 120 may be installed to open or close one inlet 111.

As shown in FIGS. 1 and 2, the door driving unit 130 operates (rotates) the inlet door 120 to open and close the inlet 111 of the sludge storage tank 110. The door automatic driving unit 131 for automatically rotating and the door manual driving unit 132 for the operator to manually rotate the input door 120.

First, the door manual drive unit 132 is composed of a manual handle bar 132 connected to the rotation shaft 121 of the input door 120. Therefore, the operator may rotate the input door 120 by rotating the manual handle bar 132.

Next, the door automatic driving unit 131, the arm portion 133 is connected to the rotating shaft 121 of the input door 120, the cylinder is installed so that the cylinder rod 136 is connected to the end of the arm portion 133 A portion 135 is included.

In the present embodiment, as shown in Figure 2, the cylinder portion 135 is provided so as to be connected to one end of the rotation shaft 121, but is not necessarily limited to this, the cylinder portion 135 of the rotation shaft 121 It may be provided in plurality so as to be connected to both ends, respectively. Hereinafter, as shown in the drawings will be described on the basis that the cylinder unit 135 is provided as one is connected to one end of the rotary shaft 121.

The arm portion 133 is formed to be bent in a substantially '-' shape and connected to one end of the rotation shaft 121 to center an imaginary hinge axis that is the same as the longitudinal axis of the rotation shaft 121 according to the operation of the cylinder portion 135. As the arm 133 rotates, the inlet door 120 is also rotated to open or close the inlet 111. That is, the arm part 133 and the rotation shaft 121 are rotated substantially simultaneously with the operation of the cylinder part 135.

In summary, the arm part 133 and the rotating shaft 121 are rotated by the operation of the cylinder part 135, and the inlet door 120 which is integrally connected to the rotating shaft 121 according to the rotation of the rotating shaft 121 is also provided. By rotating, the inlet 111 is opened or closed.

On the other hand, to increase the coupling force between the arm portion 133 and the rotary shaft 121, that is, to increase the coupling force of the mutual contact portion between the arm portion 133 and the rotary shaft 121 to generate a slip at the mutual contact portion to the rotation axis ( It is more preferable to prevent the phenomenon in which 121 does not rotate. To this end, as shown in FIG. 3, in this embodiment, the key groove 122 is formed on the rotation shaft 121, and the key portion 122 corresponds to the arm portion 133, specifically, the inner circumferential surface of the arm portion 133. Protruding key 134 may be formed to be. Of course, on the contrary, a protruding key may be formed on the rotation shaft 121 and a key groove may be formed on the arm portion 133 to correspond to the protruding key.

As shown in FIG. 3, the opening and closing apparatus according to the present embodiment further includes a door rotation limit unit 138 for limiting the rotation angle of the closing door 120.

On the other hand, the inlet door 120 is rotated in the upper direction to open the inlet 111, the opposite direction is rotated in the lower direction to close the inlet 111. The door rotation limit unit 138 prevents the input door 120 from rotating more than necessary by limiting the upward or downward rotation of the input door 120.

As shown in FIG. 3, the door rotation limiting unit 138 is installed to be spaced apart from the stopper 139 protruding from the outer circumferential surface of the rotational shaft 121 and the rotational shaft 121 to contact the stopper 139. It includes a limit switch unit 142 for detecting the vertical rotation of the input door 120.

The limit switch unit 142 detects the rotation of the rotation shaft 121 by mechanical contact, and includes an upper rotation detecting unit 143 and an upper rotation detecting unit 143 which detects a lower rotation of the input door 120. It is installed on the lower side of the includes a lower rotation detection unit 144 for detecting the upward rotation of the input door 120.

Here, the upper rotation sensing unit 143 and the lower rotation sensing unit 144 are respectively installed in the rotation sensing unit body 145 and the rotation sensing unit body 145 so as to be rotatable in contact with the stopper 139. And a contact sensing piece 146 to be installed. The rotation sensing unit body 145 may be installed in a separate bracket 171 connected to the sludge input induction body 170.

 That is, the contact sensing piece 146 of the upper rotation detecting unit 143 contacts the stopper 139 when the inlet door 120 rotates downward to close the inlet 111. It is prevented from rotating downwards more than necessary. Similarly, the contact sensing piece 146 of the lower rotation detecting unit 144 prevents the input door 120 from rotating upwards more than necessary. As will be described again below, the control unit 180 to be described later receives the detection signal of the limit switch unit 142 and stops the operation of the cylinder unit 135 when the stopper 139 is detected to be in contact with the contact detecting piece 146. Stop it.

1 and 4, the vibrating screen unit 150 is provided on the lower side of the inlet door 120 to filter foreign matter contained in the sludge or to receive the sludge falls into the sludge storage tank 110 more quickly. The vibration screen includes a vibration screen 151, a support frame 152 supporting the vibration screen 151, and a vibration motor 153 for applying vibration to the vibration screen 151.

Vibrating screen 151 is composed of a plurality of grids including a metal wire of 2.5 to 3.5mm in diameter, the size of the mesh constituting the grid in this embodiment is applied to 30mm × 60mm or 60mm × 60mm. Accordingly, the sludge particles smaller than the size of the mesh is passed through the vibration screen 151 and received into the sludge storage tank 110, but sludge particles and / or foreign matter larger than the mesh are caught on the vibration screen 151, The operator may collect the sludge particles and / or foreign matter caught in the vibrating screen 151 to post-process or dispose of them. The vibrating screen 151 may be made of a stainless material and may be fixedly installed to the support frame 152 by welding or the like.

The support frame 152 is disposed below the vibrating screen 151 to support the vibrating screen 151. The support frame 152 is manufactured by integrally welding a plurality of horizontal frames and vertical frames by welding.

1 and 4, the vibration motor 153 is disposed on the upper side of the vibration screen 151, the operation is ON / OFF by the operation signal transmission of the controller 180 to be described later. The vibration motor 153 may be installed in one or a plurality of spaced apart from each other, in this embodiment, the vibration motor 153 is applied to a rated capacity of 2.2KW, but is not limited thereto and the area of the vibration screen 151 and the above-described It can be sufficiently adjusted according to the thickness of the metal wire.

As shown in FIG. 1, the vibration screen unit 150 includes a support bracket 154 mounted on a concrete wall 160 provided in a lateral direction of the support frame 152 to support the support frame 152, and a support. The damper 155 is further provided between the bracket 154 and the support frame 152.

The support bracket 154 and the damper 155 is to reduce the vibration to minimize the vibration generated from the vibration motor 153 to the concrete wall 160 and the sludge storage tank 110. In this embodiment, the support bracket 154 may be fixed to the concrete wall 160 through a chemical anchor (not shown).

Meanwhile, the damper 155 absorbs the vibration generated by the vibration motor 153 and substantially minimizes the transmission of the vibration to the concrete wall 160 and the sludge storage tank 110. It can be applied with rubber (not shown). In FIG. 1, the damper 155 is illustrated as a spring 155 for convenience.

In the present embodiment, the vibration screen 151, the support frame 152 and the support bracket 154 is preferably made of a stainless material to prevent corrosion by moisture contained in the sludge.

As shown in FIG. 5, the opening and closing apparatus according to the present embodiment further includes a controller 180 for controlling the operation of the vibration motor 153 and the cylinder unit 135.

For example, the controller 180 operates the cylinder unit 135 according to an operation signal applied from the outside, and then the stopper 139 receives the detection signal of the limit switch unit 142 so that the stopper 139 receives the contact sensing piece 146. When it is detected that the contact with the cylinder unit 135 stops the operation, and when the cylinder 135 is stopped and a predetermined time elapses by transmitting a signal to the vibration motor 153 to operate or operate the vibration motor 153 The vibration motor 153 in operation is stopped.

More specifically, the rotation shaft 121 when the input door 120 is rotated in the upward direction to open the injection port 111, that is, when the end of the cylinder rod 136 of the cylinder portion 135 is moved upward or above a predetermined level. Stopper 139 formed in the contact with the contact sensing piece 146 of the lower rotation detection unit 144. In this case, the controller 180 stops the input door 120 from further rotating upward and transmits an operation signal to the vibration motor 153 after a predetermined time has elapsed by using the time control method. The vibration motor 153 ) Works.

On the contrary, when the input door 120 is rotated downward to close the input port 111, that is, when the end portion of the cylinder rod 136 of the cylinder part 135 is moved downward or above a predetermined level, the rotation shaft 121 is rotated. The stopper 139 formed at the contact portion is in contact with the contact sensing piece 146 of the upper rotation sensing unit 143. In this case, the controller 180 not only stops the input door 120 from further rotating downward, but also turns off the power supply to the vibration motor 153.

The control of the controller 180 is a method using time control. When the input door 120 rotates by a predetermined angle and a predetermined time elapses, the vibration motor 153 operates or stops its operation.

Hereinafter, the control unit 180 controls the operation of the vibration motor 153 after detecting whether the sludge is input through the sensor instead of the time control.

As shown in FIG. 1, the vibration screen unit 150 further includes a detection sensor 190 that detects whether the input door 120 is opened. The sensor 190 may be applied as an optical sensor or an infrared sensor, and may be installed on the concrete wall 160 or the support bracket 154.

When the optical sensor is a sensor for detecting light and the sensor 190 is applied as an optical sensor, the sensor 190 detects the light flowing into the sludge induction body 170 from the outside and inputs the door 120. ) Is detected.

Infrared sensor is a sensor for detecting the distance to the object, whether or not the object exists in the set area, etc. When the detection sensor 190 is applied as an infrared sensor, the detection sensor 190 is the sludge to the inlet 111 Detect whether or not the input. Here, the infrared sensor may be applied in a structure in which the light emitting part and the light receiving part are separated or in a structure in which the light emitting part and the light receiving part are integrated.

In summary, the controller 180 operates the vibration motor 153 when it is detected that the input door 120 is opened or substantially sludge is input through an optical sensor or an infrared sensor.

The embodiments and drawings attached to this specification are merely to clearly show some of the technical ideas included in the present invention, and those skilled in the art can easily infer within the scope of the technical ideas included in the specification and drawings of the present invention. Modifications that can be made and specific embodiments will be apparent that both are included in the scope of the invention.

110: sludge reservoir 120: input door
122: keyway 130: door drive unit
131: door automatic drive unit 132: door manual drive unit
133: arm portion 134: protruding key
135: cylinder portion 138: door rotation limiting portion
139: stopper 142: limit switch
146: contact detection piece 150: vibration screen portion
151: vibrating screen 152: support frame
153: vibration motor 154: support bracket
155: damper 160: concrete wall
180: control unit 190: detection sensor

Claims (12)

A door driving unit for operating the input door to open and close the inlet of the sludge storage tank; And
Including a vibrating screen portion provided on the lower side of the input door,
The vibrating screen unit,
Vibrating screen;
A support frame for supporting the vibrating screen;
A vibration motor for imparting vibration to the vibration screen;
A support bracket mounted to a concrete wall provided in a lateral direction of the support frame to support the support frame; And
Sludge reservoir opening and closing device provided with a vibrating screen portion, characterized in that it comprises a damper provided between the support bracket and the support frame. delete The method of claim 1,
The damper is a sludge storage tank opening and closing device having a vibrating screen portion, characterized in that the spring or rubber. The method of claim 1,
The vibration screen, the support frame and the support bracket is made of a stainless material,
The vibrating screen is composed of a plurality of grid, the size of the mesh constituting the grid is 30mm × 60mm or 60mm × 60mm, the vibrating screen is provided with a vibrating screen, characterized in that welded to the support frame Sludge reservoir opening. The method of claim 1,
The input door has a rotating shaft rotatably installed with respect to the sludge input guide body disposed on the upper side of the vibrating screen,
The door driving unit, a sludge storage tank opening and closing device having a vibrating screen portion, characterized in that it comprises a door automatic driving unit for automatically rotating the closing door and the door manual driving unit for manually rotating the closing door. The method of claim 5,
The door automatic drive unit,
An arm part connected to the rotation shaft of the input door; And
A cylinder portion installed to connect a cylinder rod to an end of the arm portion,
And the arm part and the input door rotate by the operation of the cylinder part. The method of claim 5,
The door manual drive unit, the sludge storage tank opening and closing device provided with a vibrating screen portion, characterized in that it comprises a manual handle bar connected to the rotation axis of the input door. The method of claim 6,
Further comprising a door rotation limit to limit the rotation angle of the input door,
The door rotation limit unit,
A stopper protruding from an outer circumferential surface of the rotating shaft; And
Sludge storage tank opening and closing device provided with a vibrating screen portion is provided to be spaced apart from the rotating shaft and includes a limit switch unit for detecting the rotation of the input door through contact with the stopper. The method of claim 8,
The limit switch unit,
An upper rotation detecting unit detecting a lower direction rotation of the input door; And
It is installed on the lower side of the upper rotation detecting unit includes a lower rotation detecting unit for detecting the upper direction rotation of the input door,
The upper rotation detection unit and the lower rotation detection unit, respectively
Rotation sensing unit body; And
Sludge storage tank opening and closing device having a vibrating screen unit is installed on the rotation sensing unit body and comprises a contact sensing piece that is installed to be rotatable upon contact with the stopper. 10. The method of claim 9,
Further comprising a control unit for controlling the operation of the vibration motor and the cylinder portion,
The control unit operates the cylinder unit according to an operation signal applied from the outside, and after receiving the detection signal of the limit switch unit, stops the operation of the cylinder unit when it is detected that the stopper contacts the contact sensing piece, and the cylinder unit Sludge storage tank opening and closing device having a vibration screen unit, characterized in that for operating the vibration motor or stop operating the vibration motor when a certain time elapses after the operation stops. The method of claim 6,
Further comprising a control unit for controlling the operation of the vibration motor and the cylinder portion,
The vibrating screen unit further includes a detection sensor for detecting whether the input door is opened,
The control unit, the sludge storage tank opening and closing device having a vibrating screen unit, characterized in that for operating the vibration motor when it is detected that the input door is opened by receiving the detection signal of the sensor. The method of claim 11,
The detection sensor is a sludge storage tank opening and closing device having a vibrating screen portion, characterized in that an optical sensor or an infrared sensor.

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