KR102550230B1 - Chute apparatus for tripper stacking coal by windrow method - Google Patents

Abstract

The present invention relates to a tripper chute device for stacking coal in a windrow method, which can expand and retract the chute even when the chute is tilted, detect clogging of the chute during operation, and easily remove the coal clogging the chute. It is about a telescopic chute device for trippers with a function.
The tripper chute device for loading coal according to the present invention includes a telescopic chute, a telescopic chute frame, a chute driving cylinder unit, and a chain linkage device. The telescopic chute has a fixed chute with a wide lower end and a narrower upper end and a multi-stage movable chute member, and is flexible. The telescopic chute frame includes one fixed chute frame member and a multi-stage movable chute frame member for accommodating and fixing the chute members of each stage therein, and is flexible. The chute driving cylinder portion is coupled to the first fixed chute frame and the second movable chute frame member to be stretchable. When the second moving chute frame is stretched and contracted by the chute driving cylinder, the chain interlocking device expands and contracts the movable chute frame members of the remaining stages at the same rate.

Description

Chute apparatus for tripper stacking coal by windrow method}

The present invention relates to a tripper chute device for stacking coal in a windrow method, which can expand and retract the chute even when the chute is tilted, detect clogging of the chute during operation, and easily remove the coal clogging the chute. It is about a telescopic chute device for trippers with a function.

Raw materials such as coal used in thermal power plants are transported by ships or wagons and stored in outdoor or indoor storage before being supplied to power plant boilers.

In the past, it was common to store it outdoors, but recently, there is a trend to store it in an indoor storage due to problems such as environmental pollution caused by coal dust, contamination during rain, and loss of raw materials.

When coal is stored in an indoor storage, it is transported to the upper part near the roof of the storage by a conveyor belt and is dropped into the storage by a tripper.

The tripper is equipped with a chute, and through the end of the chute, coal is accumulated while falling into the storage. Existing chutes mounted on the tripper are installed only vertically, and the chute can be stretched only in a vertical state. Due to this, when the tripper stacks coal in the storage, only the length of the chute can be adjusted, and the position at which the coal is dropped in the width direction of the low coal pile cannot be set other than the designated position. Due to this, only the Chevron or CONE SHELL method was available for stacking coal. The Chevron or CONE SHELL method, in which the coal is stacked at one point, has the disadvantage of severe segregation, a phenomenon in which large-sized coal grains roll off and are driven to the edge of the coal heap. There is a very big disadvantage that air (oxygen) easily penetrates into the coal pile due to the large gaps between the coal particles, and spontaneous combustion easily occurs along the edge of the coal pile.

The existing chute mounted on the tripper is equipped with a telescopic chute designed for the purpose of reducing dust generated when coal falls, so the chute cannot be tilted and the chute can be retracted only in a vertical state. Due to this, the existing chute was only available in the Chevron or CONE SHELL method, which has one coal stacking point (falling point).

Since the chute mounted on the tripper is located in the air, when the chute is clogged, the worker cannot easily remove it, so there is a problem that the function of tilting the chute cannot be given in a general chute form.

In addition, since the existing tripper-equipped chute did not spray water for suppressing dust at the end of the chute, there was a problem in that it could not effectively suppress dust generated when coal fell.

Patent Publication No. 10-2009-0088998 (published on August 21, 2009) Registered Patent No. 10-2043556 (Registered on November 05, 2019) Patent Publication No. 10-2010-0074555 (published on July 02, 2010) Registered Patent No. 10-1092861 (registration date: December 06, 2011)

The present invention is to solve the above problems. The present invention enables the tripper chute to be tilted and the chute to be stretched even in an inclined state, so that several coal stacking points (falling points) can be made in the width direction of the coal pile, so that the coal is separated into small wind furnaces Its purpose is to provide a chute device for trippers that can be stored in a (WINDROW) method.

In addition, an object of the present invention is to provide a tripper chute device having a function of quickly detecting chute clogging that may occur when a tripper equipped chute located in the air is tilted and easily removing it.

In addition, an object of the present invention is to provide a chute device equipped with means for determining the inclination angle of the chute and the length of the chute device so that coal can be stored smoothly in the windrow method.

In addition, an object of the present invention is to provide a tripper chute device having a water spray function capable of effectively suppressing dust generated when coal falls from the chute to the storage.

A chute device for a tripper for dropping coal according to the present invention includes a telescopic chute, a telescopic chute frame, a chute driving cylinder unit, and a chain linkage device. The telescopic chute has a fixed chute with a wide lower end and a narrower upper end and a multi-stage movable chute member, and is flexible. The telescopic chute frame includes one fixed chute frame member and a multi-stage movable chute frame member for accommodating and fixing the chute members of each stage therein, and is flexible. The chute driving cylinder portion is coupled to the first fixed chute frame and the second movable chute frame member to be stretchable. When the second moving chute frame is stretched and contracted by the chute driving cylinder, the chain interlocking device expands and contracts the movable chute frame members of the remaining stages at the same rate.

In addition, in the chute device for the tripper, the chain interlocking device preferably includes a plurality of chain assemblies. The chain assembly has an upper sprocket mounted on an upper portion of the moving chute frame member, a lower sprocket mounted on a lower portion of the movable chute frame member, and a chain connected to rotate around the upper sprocket and the lower sprocket, One side of the chain located on the outside of the moving chute frame member on which the sprockets are mounted is fixed at the top right where the moving chute frame member on which the sprockets are mounted is inserted or fixed on the inside of the moving chute frame member, and the sprocket The other side of the chain located on the inside of the moving chute frame member on which the sprockets are mounted is inserted into the inside of the moving chute frame member on which the sprockets are mounted. .

In addition, the chute device for the tripper has one end hinged to the fixing frame mounted inside the chute frame member, one end hinged to the fixing frame and the other end hinged to the chute member accommodated in the chute frame member Support having a hanger bar It is preferable to further include a support means for fixing the chute member having a plurality of members to the chute frame member.

In addition, the chute device for the tripper includes a plurality of pipe frames rotatably coupled to the outside of the lower end of the chute frame member, a plurality of connecting bars coupling the adjacent pipe frames, and a flexible installed along the pipe frame. It further includes a water hose and water spraying means having water spray nozzles installed at the end of the chute member and receiving water from the water hose connected to the tripper and spraying water for suppressing coal dust. desirable.

In addition, in the chute device for the tripper, a linear sensor (LINER SENSOR) is preferably further included.

According to the present invention, when the chute operating cylinder is contracted or extended, the lower moving telescopic chute frame and the chute are forcibly inserted into or out of the chute by the force acting on the chain of the chain interlocking device. So, even when the telescopic chute device is tilted, it is possible to adjust the length of the chute unit.

In addition, since the moving chute frame is interlocked by the chain, relative movement (sliding) does not occur, so that the amount of extension or contraction of each telescopic chute is exactly equal to the amount of extension or contraction of the chute operating cylinder. For this reason, the linear sensor (LINER SENSOR) is installed only in the chute operating cylinder to measure the extension or contraction of the cylinder, so that the length of the entire telescopic chute device can always be grasped. It is possible to check and adjust the operating values for each stage of coal reduction (chute tilt angle, chute device length, etc.) required for coal storage.

In addition, according to the present invention, water can be sprayed through the water spraying means. When the coal falls into the storage through the chute member, the generation of coal dust can be effectively reduced by injecting water through the water spraying means.

In addition, according to the present invention, the telescopic frame and the chute are moved by the strong force of the chute operating cylinder and the interlocking device. Even if there is a problem of clogging due to accumulation of coal inside the chute, the chute can be eliminated by contracting the chute with strong force. The fixed chute (11), which requires the operator to clear the chute clogging directly on the maintenance platform, has an inverted funnel-shaped shape with a narrower top and a wider bottom to enable effective removal of the chute clogging, and an inspection door in the middle of the chute. (INSPECTION DOORs) are provided.

1 is an embodiment of a chute device mounted on a tripper for loading coal according to the present invention;
Figure 2 is an operation diagram of the embodiment of Figure 1;
Figure 3 is a view of the chute device of Figure 1;
Figure 4 is a retracted view of the chute device of Figure 3;
Figure 5 is a view of the chute of the chute device of Figure 3;
Figure 6 is a view of the chute of Figure 5 viewed from another direction;
Figure 7 is a retracted view of the chute of Figure 5;
Figure 8 is a view of the chute frame of the chute device of Figure 3;
Figure 9 is a view of the expansion and contraction means of the chute device of Figure 3
10 is a conceptual diagram of a water discharge means applied to the chute device of FIG. 3;
FIG. 11 is a conceptual diagram in which the water spraying means of FIG. 10 is folded.

An embodiment of a chute device according to the present invention will be described with reference to FIGS. 1 to 9 .

The chute device according to the present invention includes a telescopic chute 10, a telescopic chute frame 15, a chute operating cylinder 18, a chain linkage device 20, and a chute supporting means 30.

The chute 10 includes a fixed chute 11 and a multi-stage movable chute member 12 and is telescopically elastic. At this time, in the chute 10, the moving chute member 12 at the bottom is wide and the chute member 12 narrows toward the top. So, when contracted, the upper fixed chute 11 and the moving chute member 12 are inserted into the lowermost moving chute member 12c.

Like the telescopic suit 10, the telescopic suit frame 15 includes a fixed frame 16 and a multi-stage movable frame member 17 and is telescopically flexible. Each movable frame member 17 accommodates a movable chute member 12 therein, respectively. In the case of the present embodiment, the telescopic suit frame 15 is formed so that the movable frame member 17 located at the lower part is inserted into the fixed frame member 16 located at the upper part, contrary to the telescopic suit 10.

The chute operating cylinder unit 18 expands and contracts the moving chute frame member 17 next to the fixed chute frame member 16 at the top. Thus, the chute operating cylinder unit 18 has one end coupled to the fixed chute frame member 16 at the top and the other end coupled to the movable chute frame member 17 of the second stage from above. Therefore, when the chute operating cylinder part 18 is extended, the moving chute frame member 17 connected to the cylinder is extended, and the moving chute frame members 17 at the lower end are extended together by the chain linkage device. When the chute operating cylinder portion 18 is contracted, the moving chute frame member 17 connected to the cylinder is contracted, and the moving chute frame members 17 at the lower end are contracted and overlapped together by the chain linkage device 20.

To this end, the chain interlocking device 20 includes a plurality of chain assemblies 21 . The chain assembly 21 includes an upper sprocket 22, a lower sprocket 24, and a chain 26. The upper sprocket 22 is mounted on the top of the moving chute frame member 17. The lower sprocket 24 is mounted on the lower part of the moving chute frame member 17. A chain (26) is connected to the upper sprocket and lower sprocket (24). At this time, the chain 26 has one side (26in) located inside the moving chute frame member 17 to which the sprockets 22 and 24 are mounted, and the lower moving chute frame member inserted into the moving chute frame member 17. is coupled to (17). And the other side 26out of the chain 26 located outside the moving chute frame member 17 is coupled to the chute frame member 16 or 17 at the top right where the moving chute frame member 17 is inserted.

Therefore, when the moving chute frame 17a connected to the chute operating cylinder 18 moves, the chain 26a rotates and moves the moving chute frame 17b at the bottom by the same distance, and this phenomenon occurs serially to the lower part of the chute link the expansion. If the moving chute frame 17 equipped with the chain assembly 21 is additionally installed, the number of stages of the telescopic chute can be expanded. In the case of this embodiment, since one fixed chute frame member 16 and three moving chute frame members 17 are provided, the chain assembly 21 is attached to the second and third moving chute frame members 17a and 17b from the top. is fitted So, one side (26in) of the chain 26a mounted on the second moving chute frame member 17a is coupled to the third moving chute frame member 17b, and the other side 26out is the first fixed chute frame member ( 16) is bound to And one side (26in) of the chain 26b mounted on the third moving chute frame member 17b is coupled to the fourth moving chute frame member 17c and the other side 26out is the second moving chute frame member ( 17a).

Therefore, when the chute operating cylinder portion 18 is extended in a state where the chute device is contracted, the movable chute frame member 17a positioned second from the top comes out of the fixed chute frame 16. At this time, since one end of the chain 26a mounted on the second moving chute frame member 17a is fixed to the fixed chute frame 16, the chain 26a rotates. As the chain 26a rotates, since one side 26in of the chain 26a is coupled to the third moving chute frame member 17b, the third moving chute frame member 17b also extends. In this way, the 4th moving chute frame member 17c is also extended. That is, when the cylinder portion 18 is elongated and the second moving chute frame member 17a comes out from the first fixed frame member 16, all the remaining movable chute frame members ( 17) exits at the same rate.

Conversely, when the chute operating cylinder unit 18 is contracted while the chute device is extended, the second moving chute frame member 17a enters the first fixed chute frame member 16 and interlocks with all other moving chute frame members. (17) are overlapped so that the length of the soup frame (15) is reduced.

The chute support means 30 serves to fix the moving chute member 12 to the moving chute frame member 17. To this end, the chute supporting means 30 includes a supporting member 31 mounted on each moving chute frame member 17 . The support member 31 includes a fixing frame 32 and a hanger bar 34 . The fixing frame 32 is mounted inside the moving chute frame member 17 . The hanger bar 34 has one end hinged to the fixing frame 32 and the other end hinged to the movable chute member 12 accommodated inside the frame member 17. Since the moving chute member 12 is hinged with the hanger bar 34, it is fixed with a degree of freedom inside the moving chute frame member 17.

The chute device of this embodiment is mounted on the tripper (1). The tripper 1 is moved to a desired location and the chute device is rotated at a desired angle in order to deposit the coal at a desired location in the storage.

Then, the chute operating cylinder portion 18 is extended. When the chute operating cylinder part 18 is extended, the second moving chute frame member 17a from the top comes out. Then, the chute frame 15 is extended while all the moving chute frame members 17 are pulled out by the chain interlocking device 20.

Since the moving chute member 12 is fixed to the moving chute frame 17, when the chute frame 15 is extended, the chute 10 is also extended. And when the coal is supplied to the chute 10, the coal is dropped and loaded into the storage through the chute 10. At this time, when the coal sticks to the chute member 12 and the chute member 12 is clogged, the chute driving cylinder unit 18 is contracted. Then, while the chute 10 is contracted, the upper chute members 12b, 12a, and 11 are inserted into the lowermost moving chute member 12c. In this case, the coals adhering to the moving chute members 12a, 12b, and 12c are easily and safely removed without the intervention of a maintenance worker due to the large force of the chute driving cylinder 18 transmitted through the chain linkage device 20. In the case of the upper fixed chute member 11, after extending the chute frame 15, the maintenance platform installed around the fixed chute frame 16 can safely remove the clogged coal through the fixed chute inspection windows manually . The fixed chute 11 has a structure that becomes narrower as it goes upward to facilitate the removal of clogged coal. As a result, it was invented so that when the maintenance worker clears the clogged coal to some extent through the inspection window, the rest is easily dropped and removed by its own weight.

Therefore, in the case of this embodiment, despite the fact that the tripper chute device is installed at a high altitude where people cannot easily access, coal can be safely and easily removed when the chute is clogged.

On the other hand, when coal falls into the storage through the last moving chute member 12c, a lot of coal dust is generated. In order to reduce this, the present embodiment may be equipped with a water spraying means 40 as shown in FIGS. 10 and 11.

The water spraying means 40 includes a plurality of pipe frames 41 and a plurality of connecting bars 42 .

The pipe frame 41 is rotatably hinged to the outside of the lower ends of the chute frame members 16 and 17 of each stage. Connecting bars 42 are hinged between the pipe frames 41 of each stage to provide flexibility during extension and contraction.

A flexible water hose is installed along the prepared pipe frame 41 and the connection bar 42, but the connection bar is installed slightly loosely to impart flexibility. And, a water spray nozzle is installed around the end of the last moving chute frame (17c). A water supply hose is connected to the water injection means prepared in this way toward the trapper so that water can be supplied.

Since the chute frame 15 is telescopically stretched, when the chute frame 15 is extended, the water spraying means 40 is unfolded as shown in FIG. 10, and when the chute frame 15 is reduced and folded, as shown in FIG. Likewise, the water spraying means 40 is also folded. Therefore, it is possible to stably unfold and fold the water supply hose even when the tripper chute is tilted without a separate driving device, and the twisting or separation of the water supply hose is also prevented.

When the coal is loaded by extending the chute 10, when water is supplied to the water spray means 40, the water is sprayed to reduce the generation of a lot of coal dust.

1: Tripper 10: Suit
11: fixed chute member 12: moving chute member
15: chute frame 16: fixed chute frame member
17: moving chute frame 18: chute operating cylinder part
20: chain interlocking device 21: chain assembly
22: upper sprocket 24: lower sprocket
26: chain 30: suit support means
31: support member 32: fixed frame
34: hanger bar 40: water spray means
41: pipe frame 42: connecting bar

Claims (5)

A telescopic chute that is wide at the bottom and narrows at the top, and is provided with a fixed chute and multi-stage movable chute members, and is flexible;
A telescopic chute frame having a fixed chute frame member and a multi-stage movable chute frame member for accommodating and fixing the chute members of each stage therein and having a telescopic chute frame;
A chute driving cylinder portion that is elastically coupled to the first fixed chute frame and the second movable chute frame member;
When the second moving chute frame is expanded and contracted by the chute driving cylinder, a chain interlocking device that interlocks and expands and contracts the moving chute frame member of the remaining stage at the same rate. The method of claim 1, wherein the chain linkage device
An upper sprocket mounted on the upper part of the moving chute frame member;
A lower sprocket mounted on the lower part of the moving chute frame member;
A chain is connected to rotate around the upper sprocket and the lower sprocket, and one side of the chain located outside the moving suit frame member to which the sprockets are mounted is inserted into the moving suit frame member to which the sprockets are mounted. The other side of the chain fixed to the inside of the fixed or moving chute frame member at the top and located inside the movable chute frame member to which the sprockets are mounted is inserted into the inside of the movable chute frame member to which the sprockets are mounted A chute device for a tripper for dropping coal, characterized in that it includes a plurality of chain assemblies having the chain fixed to the outside of the moving chute frame member at the bottom. According to claim 1,
The chute member having a plurality of support members having a fixing frame mounted inside the chute frame member, one end hinged to the fixing frame, and the other end having a hanger bar hinged to the chute member accommodated in the chute frame member A tripper chute device for dropping coal, characterized in that it further comprises a support means for fixing to the chute frame member. According to claim 1,
A plurality of pipe frames rotatably coupled to the outside of the lower end of the chute frame member, a plurality of connecting bars coupling the adjacent pipe frames, a flexible water hose installed along the pipe frame, and the chute member A tree that has water spray nozzles installed at the end and receives water from the water hose connected to the tripper and further comprises a water spray means capable of spraying water for suppressing coal dust, characterized in that it further comprises Suit device for fur. According to claim 1 or 2,
Coal characterized in that it further comprises a linear sensor (LINER SENSOR) mounted on the chute drive cylinder to determine the length of the chute device by combining the number of stages of the chain interlock device that expands and contracts at the same rate as the chute drive cylinder. A chute device for a tripper that drops and lowers a projectile.

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