KR20200116353A - Sealing Device for Large Size Powder facility and Leak test Apparatus - Google Patents

Abstract

A sealing device according to the present invention comprises: a rotating shaft which receives a rotational force of a drive unit rotating by power applied from the outside, and is coupled to pass through one side and the other side of a casing so as to rotate within a receiving space of the casing having the receiving space formed therein to receive contents including powder; and a first sealing device coupled to one side of the rotating shaft and the casing to seal the contents flowing out of the casing by allowing the contents received in the casing to move in a first direction by the rotation of the rotating shaft. The first sealing device includes: an inner blade coupled to the rotating shaft by having a guide radially disposed inside the casing so that the contents are moved away in a radial direction of the rotating shaft with respect to a plate surface of an auxiliary plate coupled to the casing according to the rotation of the rotating shaft; a flange provided to be coupled to a pair of seals coupled to the rotating shaft, and coupled to the outside of the casing to support a space ring coupled between the seals; and a cover coupled to the outside of the flange to support the space ring and the seal received in the flange. According to the present invention, the device can more effectively seal a conveyed material or the contents including the powder flowing out along the rotating shaft. The present invention installs various types of sealing devices on one shaft and compares and confirms the durability and efficiency of the sealing device by testing which sealing device is effective and lasts longer under the same conditions.

Description

Sealing Device for Large Size Powder Facility and Leak Test Apparatus}

The present invention relates to a sealing device for a shaft of a large-sized powder facility, and is a technology specialized for powder sealing, consisting of a double leak prevention structure, and in particular, a leak test equipment is provided with different shaft sealing devices on both sides of one shaft, thereby sealing devices for different shafts. It relates to a sealing device for a shaft with an improved structure to compare and test the wear state or the sealing state of each other.

Various types of machines are used for industrial purposes, and among them, a mixing machine is used to accommodate and mix the received materials.

That is, in order to mix, ripen, and process a plurality of raw materials at various composition ratios, a plurality of raw materials may be introduced into a casing having a certain accommodation space, and then the raw materials may be mixed while the casing or the rotating shaft rotates.

In the process of mixing, raw materials, etc. may flow into the rotating shaft and damage the rotating shaft and bearings that support the rotating shaft, and the gland packing. Particularly, as the fine and hard powder in the raw materials and the size of the rotating shaft increases, the force to push the raw materials increases, and this tendency is strong.

Therefore, it is preferable to install a sealing device that can more effectively prevent such fine or hard powder from flowing into the rotating shaft, and that can be replaced and used for particularly abrasive parts. In addition, various types of sealing devices are installed on one shaft. It is more desirable to be able to test and compare which sealing device is effective under the same conditions and has a long lifespan.

[references]

Registered Patent Publication No. 10-1888149 (2018.08.07. Announcement)

Registered Patent Publication No. 10-1852522 (2018.04.20. Announcement)

An object of the present invention is to provide a sealing device for a large body equipment shaft capable of more effectively sealing a conveyed material or contents including powder flowing out along a rotating shaft.

In addition, another object of the present invention is to install various types of sealing devices on one shaft, and under the same conditions, test and test which sealing device is effective and whether its life is long. It is to provide a sealing device for a large body equipment shaft that can be compared and confirmed.

In addition, another object of the present invention is to provide a sealing device for a large main body equipment shaft that is simple and convenient to operate, assemble, check, and the like.

In addition, another object of the present invention is that even with the same sealing device, it is possible to effectively check whether the contents are leaked by variously modifying the tolerance range and material, so that not only the optimality of the product can be selected, but also the reliability of the product can be improved. It is to provide a sealing device for the shaft of a large body equipment.

It is an object of the present invention to receive the rotational force of a driving unit that rotates by externally applied power, and to rotate within the receiving space of a casing having a receiving space for receiving contents including powder inside. The contents accommodated in the casing move in the first direction by rotation of a rotation shaft coupled so as to penetrate one side and the other side, and are coupled to one side of the rotation shaft and the casing to seal the contents flowing out of the casing, and the casing An inner blade coupled to the rotary shaft and an inner blade coupled to the rotary shaft with a guide guide disposed radially away from the radial direction of the rotary shaft with respect to the plate surface of the auxiliary plate coupled to the casing on the inside, and coupled to the rotary shaft A flange coupled to the outer side of the casing to support a space ring coupled between the seals, the seal accommodated in the flange, and the flange to support the space ring It is achieved by a sealing device for a large body equipment shaft, characterized in that it comprises a cover coupled to the outside.

In addition, it is preferable that the inner blade and the seal rotate by contacting a sleeve rotatably coupled to the rotating shaft.

In addition, the seal rib of the seal in contact with the sleeve is coupled to the flange in a form bent toward the casing, and a fluid through which a fluid including compressed air is supplied through the flange to the space ring between the seals It is preferable that a hole is formed, and the seal guides the fluid to flow toward the rotation shaft in communication with the fluid hole.

On the other hand, the object of the present invention is to receive the rotational force of the rotating drive unit by power applied from the outside, and to be rotatable in the receiving space of a casing having a receiving space for receiving contents including powder inside. A rotation shaft coupled to pass through one side and the other side of the casing; A first sealing device coupled to one side of the rotation shaft and the casing so that the contents contained in the casing move in a first direction by the rotation of the rotation shaft to seal the contents flowing out of the casing; The contents contained in the casing move in the second direction by the rotation of the rotation shaft, and the second sealing device is spaced apart from the first sealing device so that the contents flowing out of the casing can be sealed and coupled to the other side of the rotation shaft and the casing. It is also achieved by a sealing device characterized in that it includes;

In addition, the first sealing device is provided with a guide guide radially disposed inside the casing so that the contents are radially away from the plate surface of the auxiliary plate coupled to the casing according to the rotation of the rotation shaft. A flange coupled to the outer side of the casing to support the inner blade coupled to the inner blade and a pair of seals coupled to the rotation shaft to be coupled, the space ring coupled between the seals, and the flange accommodated in the flange. A seal and a cover coupled to the outside of the flange to support the space ring, and the second sealing device includes: a packing housing coupled to the outside of the casing to accommodate the gland packing coupled to the rotation shaft, and the packing It is preferable to include a packing pressing plate coupled to the outside of the packing housing so as to press the grand packing supported by the housing.

In addition, it is preferable to check how far the contents flow out of the casing from the first sealing device and the second sealing device along the rotation axis.

Accordingly, according to the present invention, it is possible to provide a large-sized body equipment shaft sealing device capable of more effectively sealing a conveyed material or contents including powder flowing out along a rotating shaft.

In addition, by installing various types of sealing devices on one shaft, a large body that allows you to compare and check the durability and efficiency of the sealing device by testing and testing which sealing device is effective under the same conditions and has a long lifespan. A sealing device for equipment shafts can be provided.

In addition, it is possible to provide a sealing device for a large body equipment shaft that is simple and convenient to operate, assemble, and confirm.

In addition, even with the same sealing device, it is possible to effectively check whether the contents are leaked by variously modifying the tolerance range and material, so that not only the optimality of the product can be selected, but also a sealing device for the shaft of a large body facility can be improved. Can provide.

1 is a cross-sectional view and a partially enlarged view of a sealing device sealing device according to an embodiment of the present invention,
Figure 2 is a plan view of Figure 1,
3 is a cross-sectional perspective view and an exploded perspective view of the first sealing device in FIG. 1;
4 is an enlarged cross-sectional view for explaining the operation process of FIG. 3.

A sealing device for a shaft (100, hereinafter referred to as a'sealing device') capable of sealing contents including powders moving along a rotating axis according to an embodiment of the present invention is described in detail with reference to FIGS. 1 to 3. Explained as follows.

1 is a cross-sectional and partially enlarged view of a sealing device sealing device according to an embodiment of the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a cross-sectional perspective view and an exploded perspective view of the first sealing device in FIG. 4 is an enlarged cross-sectional view for explaining the operation process of FIG. 3.

Referring to FIG. 1 according to an embodiment of the present invention, the horizontal direction of the rotation shaft 109 in the longitudinal direction of the'X' axis direction, the vertical direction of the casing 105 in the'Y' axis direction, and the horizontal direction of the'XY' plane. The forward/backward direction, which is the direction, is set as the'Z' axis direction.

The sealing device 100 according to the present invention receives the rotational force of the driving unit 107 that rotates by power applied from the outside, as shown in FIGS. 1 and 2, and accommodates contents including powder inside. A rotation shaft 109 coupled to be rotatable through one side and the other side of the casing 105 so as to be rotatable within the receiving space of the casing 105 having a receiving space to be provided; By the rotation of the rotation shaft 109, the contents received in the casing 105 move in the first direction (for example, in the negative (-) direction of the'X' axis on the left side of FIG. 1), and the casing 105 ) A first sealing device 200 coupled to one side of the rotating shaft 109 and the casing 105 to seal the contents flowing out to the outside; The contents accommodated in the casing 105 by rotation of the rotation shaft 109 move in the second direction (for example, in the positive direction of the'X' axis on the right side of FIG. 1), and the casing 105 ) It is preferable to include a second sealing device 300 that is spaced apart from the first sealing device 200 and coupled to the other side of the rotation shaft 109 and the casing 105 so as to seal the contents flowing out to the outside. Do.

The sealing device 100 is, for example, a'c'-shaped channel, an angle, a steel plate, a frame 103 made of a bent steel plate, or a combination thereof so as to firmly support each configuration, and a motor and a motor. It is preferable to include a drive unit 107 including a speed reducer to reduce the speed, and a bearing 108 coupled to the frame 103 so as to support the rotating shaft 109.

The casing 105 is coupled to the casing 105 so as to accommodate the contents, which is the object of the sealing device 100, including, for example, powder, a conveyed material used for various raw materials of a steel mill or a steel mill. The casing 105 forms a receiving space and forms a casing body 105a having an opening through which contents can be input and discharged, a casing cover 105b capable of opening and closing the opening, and a side surface of the casing body 105a. It is preferable that the rotating shaft 109 is formed of a casing side plate 105c through which the auxiliary plate 203 is coupled.

And, the first sealing device 200 and the second sealing device 300 is coupled to the contents inside the casing 105, and a paddle 109a capable of transferring the contents in the corresponding directions of the first and second directions. It is coupled to this rotating shaft 109. Here, the paddle 109a is preferably coupled to the rotation shaft 109 so that the contents are transferred from the center of the casing 105 in the left and right directions as shown in FIG. 1.

The first sealing device 200 includes an auxiliary plate 203 coupled to the casing side plate 105c and having a shaft through hole 203a through which the rotation shaft 109 and the sleeve 220 can pass, and the rotation shaft 109. It can prevent wear and the like and improve the sliding properties so that the seals 240 and 260 can operate more smoothly, and can be rotated with the rotating shaft 109, and the seals 240 and 260 and the space ring ( 250) is provided to be coupled to the sleeve 220 coupled to the rotating shaft 109, and a guide guide 213 which is spaced apart from the plate surface and inclinedly coupled in a radially long rod shape and disposed close to the plate surface of the auxiliary plate 203 It has an inner blade 210 rotatably coupled to the sleeve 220 in a divided form, seals 240, 260, space ring 250, linker burr 270, and keeps airtightness in various gaps. It is preferable to have an O-ring 280 and a fastening means 290 including a bolt capable of firmly coupling each component.

The inner blade 210 is coupled to the sleeve 220 in a divided form for assembly, disassembly, etc., and a guide guide 213 facing the plate surface of the auxiliary plate 203 is radially shown in FIG. 4 on the inner blade 210 As described above, a number of inclined arrangements are made to exert a centrifugal force according to the clockwise rotation of the rotation shaft 109 (refer to the'R' direction in Fig. 4) to push the contents outward from the rotation center axis of the rotation shaft 109. According to (109), it is possible to minimize the amount of contents leaked to the outside. The inner blade 210 divided into two may be firmly coupled to the sleeve 220 by a blade bolt 215.

The flange 230 is disposed outside the casing 105 and is coupled to the auxiliary plate 203 by a fastening means 290. The flange 230 is provided with a fluid hole 233 through which fluid such as compressed air supplied from the outside can be supplied between the inside of the flange 230 and the sleeve 220, and the fluid hole 233 is a space The outer periphery of the ring 250 and the guide hole 253 formed through the outer periphery and the inner periphery of the space ring 250 are communicated with each other so that the fluid may be supplied between the inner side of the flange 230 and the sleeve 220.

The seals 240 and 260 are coupled to the inside of the flange 230 with the space ring 250 interposed therebetween, and the inner seal 240 disposed close to the casing 105 on the right side of the space ring 250, and a space It consists of an outer seal 260 disposed away from the casing 105 on the left side of the ring 250. Each of the seals 240 and 260 is provided with seal ribs 243 and 263 that are regions in contact with the sleeve 220.

The seal ribs 243 and 263 are preferably bent toward the casing 105 so that the fluid flowing from the outside does not flow out along the rotation shaft 109 as shown in the enlarged view of FIG. 4. Due to this structure, the contents to be discharged along the rotating shaft 109 may not be more effectively discharged to the outside of the casing 105.

The linker burr 270 is coupled to the flange 230 by a fastening means 290 on the outside of the flange 230 so as to support the seals 240 and 260 and the space ring 250 coupled to the inside of the flange 230 do.

Here, the O-ring 280, as shown in each drawing, between the seals 240 and 260 and the flange 230, between the auxiliary plate 203 and the flange 230, the inner blade 210 and the sleeve 220 It is preferable to maintain the airtightness of the contents in the area to which the O-rings 280 are coupled since they are respectively coupled.

The fastening means 290 can firmly couple each component including a bolt.

Meanwhile, as shown in FIG. 1, the second sealing device 300 is a structure capable of preventing leakage of contents between regions in which the ground packing coupled to the rotating shaft 109 which has been known and used in the prior art rotates.

The second sealing device 300 may be used in a state in which a sleeve (not shown) is coupled to the rotation shaft 109 as described above as needed. The second sealing device 300 accommodates and supports the ground packing 330 coupled to the rotary shaft 109 so as to be in contact with multiple layers, and the ground packing housing (which is coupled to the casing side plate 105c) and supports the ground packing 330. 310) and a packing pressing plate 350 capable of pressing the grand packing 330 coupled to the grand packing housing 310, and a pressing plate fastening bolt capable of coupling the packing pressing plate 350 to the grand packing housing 310 It is preferably composed of 370.

Since the operation process of the second sealing device 300 can be easily understood by those of ordinary skill in the art, a detailed description will be omitted.

The operation process of the first sealing device 200 having such a configuration will be described in detail with reference to FIGS. 1 to 4 as follows.

First, as shown in FIG. 1, after coupling the first sealing device 200 and the second sealing device 300 to the rotation shaft 109 of the sealing device 100, the rotation shaft 109 is rotated so that a certain amount of time elapses. . This reason is to form an atmosphere in which the first sealing device 200 and the second sealing device 300 can stably rotate along the rotation shaft 109.

Then, the casing 105 is actually used or the contents such as flour, coal powder, etc. are put and the rotating shaft 109 is rotated.

By the clockwise rotation of the rotation shaft 109 (refer to'R' in FIG. 4) l, a guide guide toward the plate surface side of the auxiliary plate 203 as shown in FIG. 4 inside the first sealing device 200 213) is provided so that the contents flowing between the auxiliary plate 203 and the inner blade 210 can be minimized by centrifugal force (see'Fr' in FIG. 4).

And, the contents flowing along the shaft through hole 203a along the rotation shaft 109 first prevents the seal rib 243 of the inner seal 240 from contacting the outer circumference of the sleeve 220 and flowing out, The contents that have passed through the next inner seal 240 may be prevented from being leaked to the outside by the two-layered seal ribs 263 of the outer seal). In this process, the fluid containing compressed air is supplied to the fluid hole 233 and the guide hole 253 so that the contents that are about to pass through the inner seal 240 or the contents that have passed the inner seal 240 do not flow out of the rotation shaft 109. ) Is supplied to the space ring 250 at a set pressure.

Here, as described above, the seal ribs 243 and 263 of each of the seals 240 and 260 are formed so that the fluid supplied to the space ring 250 flows not outside the rotation shaft 109 but inside the rotation shaft 109. It has a shape that is bent toward the casing 105, which is the inner side of 109, and is preferably assembled on the rotation shaft 109 to have such a shape.

That is, the second sealing device 300 can prevent and minimize the contents of the contents flowing out along the rotation shaft 109 through these various steps.

On the other hand, since the second sealing device 300 wears the ground packing 330 as the rotation shaft 109 rotates, it must be able to more effectively separate the outflow of the worn-out ground packing 330 and the outflow of the contents. Since a tolerance may occur due to the wear of the packing 330, it would be desirable to test while gradually tightening the packing pressing plate 350 toward the ground packing housing 310 using the pressing plate fastening bolt 370. Of course, it will be necessary to consider the time and labor required for the tightening operation in comparing the advantages and disadvantages of each sealing device.

Using such a sealing device 100, the inventor accommodates the contents of the mixture of flour and sand in the casing 105 and rotates the rotating shaft 109 at about 60 rpm over several days. As a result, the second sealing device 300 side Although there was almost no content flowing out along the rotation shaft 109 of the first sealing device 200, it could be confirmed that the content flowing out along the rotation shaft 109 of the first sealing device 200 was somewhat generated.

That is, if the sealing device 100 according to the present invention is used as described above, after installing a plurality of sealing devices coupled to the rotating shaft rotating under the same conditions, the contents flowing out along the rotating shaft of each sealing device are easily and conveniently tested and confirmed. I can.

In addition, even if the sealing device is similar or identical, the material of the seal and the tolerance range of each composition are variously modified to check whether the contents are leaked, and thus the optimized sealing device can be provided to improve the reliability of the product. I can make it. In addition, when it is difficult to apply the sealing device 100 to a part where even a small spill should not occur, it will be very effective to apply the sealing device 100.

Accordingly, according to the present invention, it is possible to provide a sealing device for a shaft capable of more effectively sealing a conveyed product or contents including powder flowing out along a rotating shaft.

In addition, by installing various types of sealing devices on one shaft, it is possible to test and check which sealing device is effective and lasts longer under the same conditions, so that the durability and efficiency of the sealing device can be compared and confirmed. Device can be provided.

In addition, it is possible to provide a sealing device for a shaft that is simple and convenient to operate, assemble, and check.

In addition, even with the same sealing device, it is possible to effectively check whether the contents are leaked by variously modifying the tolerance range and material, so that not only the optimality of the product can be selected, but also a sealing device for the shaft that can improve the reliability of the product can be provided. have.

Here, although one embodiment of the present invention has been illustrated and described, it will be appreciated that those of ordinary skill in the technical field to which the present invention belongs can modify the present embodiment without departing from the principles or spirit of the present invention. will be. The scope of the invention will be determined by the appended claims and their equivalents.

100: sealing device 103: frame
105: casing 105a: casing body
105b: casing cover 105c: casing side plate
107: drive unit 108: bearing
109: rotation shaft 109a: paddle
200: first sealing device 203: auxiliary plate
203a: shaft through hole 210: inner blade
213: guide guide 215: blade bolt
220: sleeve 230: flange
233: fluid hole 240: inner seal
243: seal rib 250: space ring
253: guide hole 260: outer seal
263: seal rib 270: linker
280: O-ring 290: fastening means
300: second sealing device 310: grand packing housing
330: grand packing 350: packing presser
370: pressure plate fastening bolt

Claims (6)

It is possible to pass through one side and the other side of the casing so as to be rotatable within the receiving space of the casing having a receiving space inside which receives the rotational force of the rotating drive unit by power applied from the outside. The contents accommodated in the casing move in the first direction by rotation of the rotation shaft so as to be coupled to one side of the rotation shaft and the casing to seal the contents flowing out of the casing,
An inner blade coupled to the rotation shaft having a guide guide radially disposed inside the casing so as to move the contents away from the radial direction of the rotation shaft with respect to the plate surface of the auxiliary plate coupled to the casing according to the rotation of the rotation shaft,
A flange coupled to the outer side of the casing so as to be able to couple a pair of seals coupled to the rotation shaft and to support a space ring coupled between the seals,
And a cover coupled to an outside of the flange to support the seal and the space ring accommodated in the flange. The method of claim 1,
The inner blade and the seal are rotated by contacting a sleeve rotatably coupled to the rotation shaft. The method of claim 2,
The seal rib of the seal in contact with the sleeve is coupled to the flange in a form bent toward the casing, and the space ring between the seals has a fluid hole through which a fluid including compressed air is supplied through the flange. And the seal guides the fluid to flow toward the rotation axis by communicating with the fluid hole. It is possible to pass through one side and the other side of the casing so as to be rotatable within the receiving space of the casing having a receiving space inside which receives the rotational force of the rotating drive unit by power applied from the outside. A rotating shaft coupled to each other;
A first sealing device coupled to one side of the rotation shaft and the casing so that the contents contained in the casing move in a first direction by the rotation of the rotation shaft to seal the contents flowing out of the casing;
The contents contained in the casing move in the second direction by the rotation of the rotation shaft, and the second sealing device is spaced apart from the first sealing device so that the contents flowing out of the casing can be sealed and coupled to the other side of the rotation shaft and the casing. A sealing device leak testing equipment comprising: a device. The method of claim 4,
The first sealing device includes a guide guide disposed radially away from the radial direction of the rotation shaft with respect to the plate surface of the auxiliary plate coupled to the casing according to the rotation of the rotation shaft inside the casing, and is coupled to the rotation shaft. A flange coupled to the outer side of the casing so as to be able to couple the inner blade and a pair of seals coupled to the rotation shaft to support the space ring coupled between the seals, and the seal accommodated in the flange, It includes a cover coupled to the outside of the flange to support the space ring,
The second sealing device includes: a packing housing coupled to the outside of the casing to accommodate the gland packing coupled to the rotation shaft, and a packing pressing plate coupled to the outside of the packing housing to press the gland packing supported by the packing housing. Sealing device leak testing equipment comprising a. The method of claim 5,
A sealing device leak testing equipment, characterized in that it is checked how far the contents flow out of the casing from the first sealing device and the second sealing device along the rotation axis.

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