KR100900624B1 - Safety apparatus for bucket in coke dry quenching facility - Google Patents

Abstract

The present invention relates to a bucket safety device of a dry fire extinguishing system. The bucket safety device includes a gear structure 202 formed along the guide beam 102 in the direction of the bucket 100; A sheave 120 to which the wire rope 104 is wound and attached to the sheave base 122; Two upper sieve pillars 144 facing each other so as to support the sieve 120 with respect to the sieve base 122, and the upper sieve pillars 144 connected to the upper sieve pillars 144 on both sides thereof. A sheave shaft 128 installed to connect the support beam 126 provided with the center of the support beam 126 and the sieve 120 between the support beam 126 in the middle of the support beam 126; A transmission means coupled to the sheave 120 and transmitting a force applied by the wire rope 104 downward; It consists of first and second body (180A, 180B) that can be folded or folded by the force transmitted by the transmission means, the end of the pair of protrusions 184 of the first and second body (180A, 180B) A scissor assembly 180 coupled to the transmission means by means of a pair of fingers 182 on the opposite side of the protrusion 184 to engage the gear structure 202; And substructures 142, 192, and 198 for guiding extension and folding while supporting the scissors assembly 180 from below.

The present invention prevents the bucket from falling due to cutting of the wire rope.

Dry Fire Hydrant, Bucket, Crane, Wire Rope, Crash, Brake, Scissor Assembly

Description

SAFETY APPARATUS FOR BUCKET IN COKE DRY QUENCHING FACILITY}             

1 is a schematic diagram of a conventional dry fire extinguishing facility.

2 is an enlarged perspective view of a portion A of FIG. 1.

3 is a schematic view of a bucket safety device according to the invention for use in a dry fire extinguishing facility;

4 is an enlarged perspective view of a portion B of FIG. 3.

5 is an exploded perspective view of a portion C of FIG. 4.

6 is an operation diagram of FIG. 4.

7 is an enlarged perspective view of a portion D of FIG. 3.

<Explanation of symbols of main parts in drawings>

104: wire rope 120: sheave

122: sheave base 142: bucket brake base

144: upper sieve pillar 152: lower sieve pillar
160: link link 180: scissors assembly
190: tension spring 192: guide rail
198: arc rail 194, 200: groove

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The present invention relates to a bucket safety device of a dry fire extinguishing system, and more particularly, to the scissors assembly of the bucket brake unit even if problems such as sudden relaxation, loosening, cutting, etc. occur in the wire rope during hoisting and unwinding of the crane of the dry fire extinguishing system. The present invention relates to a bucket safety device that can prevent the bucket from falling by engaging with the gear structure of the guide beam.

In general, the fire extinguishing of red coke after the production of coke is based on wet (flushing) fire extinguishing with water in the digestion tower. However, in order to prevent environmental pollution and recover heat energy, which is caused by dust coke or dust scattering into the air, a dry fire extinguishing method that uses fire extinguishing using nitrogen, that is, a CDQ (Coke Dry Quenching) facility, is used.

1 is a schematic view showing a conventional dry fire extinguishing equipment. Referring to FIG. 1, the red coke is loaded into the bucket 100 using a carriage car, and then the bucket 100 is moved to the lifting position of the crane 108. The crane 108 lifts the bucket 100 transferred to the hoisting position upward using the wire rope 104 and then chambers 110 to unload the coke along the traveling rail 106 supported by the guide beam 102. ) Move horizontally to the top.

The coke is charged into the chamber 110 through the lifting operation of the crane 108 in the upper part of the chamber 110, and then nitrogen gas is introduced into the chamber 110 to extinguish the red coke. Meanwhile, the generated dust is transferred to the connected dust hopper 112.

2 is a partial perspective view showing the connection of the bucket 100 and the wire rope 104 as described above. Referring to FIG. 2, the end of the wire rope 104 is wound around the sheave 120 so that the rotation of the sheave 120 helps to unwind and wind the wire rope 104. The sheave 120 has two sets based on the sheave base 122.

Two sheave support pillars 124 are opposed to the sheave base 122 with respect to the sheave 120, respectively, standing upright, and the support beams 126 connecting the sheave support pillars 124 to each other are each sheave ( 120) installed on both sides. Connection pins 128 connecting the support beams 126 and the centers of the sheaves 120 between the support beams 126 are installed in the middle of the support beams 126 to form a rotating shaft of the sheave 120.

Meanwhile, base rollers 132 are installed at both ends of the sheave base 122, and guide rods 130 are installed at four corners, respectively.

In the prior art made of such a process, there are some differences depending on the operation rate of the coke production, but in the normal operation, the lifting and unwinding operation of the crane 100 is performed about once every 10 minutes and the operating time per operation is about 6 minutes The driving height is approximately 30 meters. In this repetitive work, the role of the wire rope 104 connecting the crane 108 and the bucket 100 is important.                         

However, there is a risk of an accident that the bucket 100 may fall due to the loosening, loosening and cutting of the wire rope 104 occurring during frequent lifting and unwinding operations of the crane 108. In other words, during repeated hoisting and unloading operations of the crane 108, the wire rope 104 is repeatedly rubbed and therefore easily worn. When the wire rope 104 is cut by such wear or a sudden loosening or loosening occurs due to an abnormal operation of the device, the bucket 100 falls down. On the other hand, since the bucket 100 is usually moved in the height area, the damage that falls is increased.

However, in the related art, the countermeasure for the problem of the lower fall of the bucket is not established.

Therefore, the present invention has been made to solve the above-described problems of the prior art, even in the dry fire extinguishing equipment during the hoisting and unloading operation of the crane, even if problems such as sudden loosening, loosening, cutting of the wire rope assembly of the bucket brake unit It is an object of the present invention to provide a bucket safety device that can prevent the bucket from falling by engaging with the gear structure of the guide beam.

Bucket safety device of the dry fire extinguishing equipment provided according to the characteristics of the present invention for achieving the above object of the present invention is a crane that uses a wire rope to move the bucket up and down along the guide beam and in the transverse direction from the top position A dry fire extinguishing system, comprising: a gear structure formed in a bucket direction along a guide beam; A sheave wound around the wire rope and attached to the sheave base; Two upper sieve pillars opposed to the sieve base to support the sieve base, support beams provided on both sides of the upper sieve pillar to connect the upper sieve pillars to each other, and both support beams in the middle of the support beam, and A sheave shaft installed to connect a center of the sheave between the sheave shafts; Transmission means coupled to the sheave for transmitting a force applied by the wire rope to the lower side; It consists of first and second body (180A, 180B) that can be folded or folded by the force transmitted by the transmission means, the end of the pair of protrusions 184 of the first and second body (180A, 180B) A scissor assembly 180 coupled to the transmission means by means of a pair of fingers 182 on the opposite side of the protrusion 184 to engage the gear structure 202; And substructures 142, 192, and 198 for guiding the folding and folding while supporting the scissors assembly 180 from the lower side.

In the bucket safety device of the present invention, when the wire rope is cut during the lifting and unloading operation of the crane, the shear assembly of the bucket brake unit meshes with the gear structure of the guide beam to prevent the bucket from falling.

Various features and advantages of the invention, which will be described in connection with the following detailed description and the accompanying drawings, will be apparent to those skilled in the art. In the following description of the present invention, the same components as in the prior art of Figs. 1 and 2 are given the same reference numerals.

3 is a schematic view of a bucket safety device according to the invention for use in a dry fire extinguishing installation, FIG. 4 is an enlarged perspective view of part B of FIG. 3, and FIG. 5 is an exploded view of part C of FIG. 4.

3 to 5, the bucket safety device according to the present invention includes a hook gear structure 202 formed in the guide beam 102 of the dry fire extinguishing system and a bucket brake unit 140 under the sheave 120.

The bucket brake unit 140 includes a bucket brake base 142 formed below the sheave base 122. The bucket brake base 142 is connected to the sheave base 122 by four guide rods 130. In addition, the bucket brake unit 140 further includes two drive mechanisms connected to the sheave 120 and two shear assemblies 180 respectively driven by the drive mechanisms. Scissor assembly 180 consists of two separate scissor bodies 180A, 180B, which are foldable or foldable by cross links 181.

Each of the driving mechanisms includes two upper sieve pillars 144 supporting the sieve 120, two lower sieve pillars 152 below the sieve base 122 coupled to the upper sieve pillars 144, respectively. Two link links 160 pivotally coupled to the lower sieve column 152 and four link brackets 176 coupled to the link links 160 in pairs.

The upper sieve pillar 144 has a lower end forming a rib 146, which is larger in diameter than the pillar hole 148 of the sieve base 122. Lower sieve column 152 has a middle expanded rib 156 and a lower flat portion 158. The top 154 of the lower sieve pillar 152 is smaller in diameter than the pillar hole 148 formed in the sieve base 122 and the rib 156 is larger in diameter, so only the top 154 is sieve through the pillar hole 148. It protrudes above the base 122 and is coupled with the upper sieve column 144. A buffer spring 150 is provided between the rib 146 of the upper sieve pillar 144 and the rib 156 of the lower sieve pillar 152.

The flat portion 158 of the lower sieve column 152 is coupled by the link pin 174 to the upper disc-shaped engaging portion 162 at the end of the first arm 164 of the connecting link 160 and the nut ( 175). On the other hand, the link bracket 176 is fixed to the lower side of the sheave base 122 on both sides of the pillar hole 148 and extends downward, and a pair of circles whose ends are on both sides of the main body 168 of the connecting link 160. It is coupled to the plate coupling portion 166 by a link pin 174a. The second arm 170 of the lower side of the connecting link 160 has a disc shaped engagement portion 172 at the distal end of the protrusion 184 of either body 180A or 180B of the scissors assembly 180. The disk coupling 186 is also coupled by a link pin 174 and a nut 175. On the other hand, the connection link 160 is configured integrally so that when one arm, for example, the first arm 164 receives a force, the other arm, that is, the second arm 170 is rotated correspondingly around the main body 168.

Scissor assembly 180 has two separate members hingeably coupled by cross links 181. A guide rail 192 is formed below the protrusion 184 behind the scissors assembly 180 and is provided with an iron groove 194. The hook of the letter (not shown) below the protrusion 184 is provided. Slides in groove 194. Projections 188 are formed at opposite portions of both protrusions 184 and tension springs 190 are coupled to these opposed projections 188.

A pair of fingers 182 is installed opposite the protrusion 184 of the scissor assembly 180, and a head of the pin 196 protrudes between the fingers 182 and the cross link 181. The lower portion of the pin 196 is coupled to each of the spell hook (not shown) below the scissors assembly 180. A spelled hook below the scissors assembly 180 is slidably coupled within the spelled groove 200 of the arced rail 198 below.
In this case, the bucket brake base 142 may support the guide rail 192 and the arc-shaped rail 198 from below.
As described above, the substructure having the bucket brake base 142, the guide rail 192, and the arc rail 198 may guide the folding and folding while supporting the scissor assembly 180 from the lower side.

Meanwhile, for convenience of illustration, only the portion C of FIG. 4 is disassembled and illustrated, but the remaining part of FIG. 4 has the same configuration.

FIG. 6 is an operation diagram of FIG. 4, and FIG. 7 is an enlarged perspective view of part D of FIG. 3 showing the operation of the bucket safety device of the present invention. Hereinafter, the operation of the bucket safety device of the present invention will be described with reference to Figs. 1 and 3 to 5 preceding Figs.

When carrying out the operation of hanging up and down the bucket 100 to the wire rope 104 through the lifting and lowering of the crane 108, the wire rope 104 is loosened beyond the device, or the wire rope 104 is sharply dropped. When a situation arises in which the wire rope 104 is loosened or cut, the tensioned wire rope 104 is relaxed as shown in FIG. 6. In this case, the tension spring 190, which was inflated with the tension of the wire rope 104, has a sudden contraction action because the tension of the upper portion disappears.

In other words, when the wire rope 104 is in a normal state, the wire rope 104 tensioned by the load of the bucket 100 and the load may include the sheave 120, the support beam 126, and the upper and lower sheave columns 144. The first arm 164 of the connecting link 160 is pulled upward through 152. When the first arm 164 is pulled upward, the pair of second arms 170 of the connecting link 160 pivots away from each other about the main body 168 to move the pair of protrusions 184 away from each other. Pulled. Therefore, the tension spring 190 is maintained in an expanded state by this force.

As described above, in the expanded state, when the driving force to expand by loosening of the wire rope 104 is lost, the tension spring 190 contracts rapidly by its contracting force, and the pair of protrusions of the scissors assembly 180 ( 184) toward each other. In this case, the pair of fingers 182 of the scissor assembly 180 pivot toward the cross link 181 and move toward each other. At this time, the above-described guide rail 192, arc-shaped rail 198 and the grooves (194, 200) are engaged by guiding the lower (not shown) protrusion of the scissors assembly 180, the scissors assembly 180 To be folded in a defined path.

The fingers 182 of the folded scissors assembly 180 are engaged with the grooves of the gear structure 202 of the guide beam 102 as shown in FIG. 7 to prevent the bucket 100 from falling.

On the other hand, the buffer spring 150 regulates the fall of the sheave 120 due to the loosening of the wire rope 104 to a certain degree to prevent the sheave 120 from colliding with the sheave base 122 to be damaged.

According to the bucket safety device according to the present invention as described above, the shear assembly of the bucket brake unit is engaged with the gear structure of the guide beam even if a problem such as sudden loosening, loosening, cutting of the wire rope occurs during the hoisting and unloading operation of the crane. This can prevent the bucket from falling. As a result, equipment accidents or safety accidents such as bucket and equipment damage are prevented.

Although the above has been described with reference to the preferred embodiments of the present invention, those skilled in the art may vary the present invention without departing from the spirit and scope of the present invention as set forth in the claims below. It will be appreciated that modifications and variations can be made.

Claims (4)

In a dry fire extinguishing system, the crane 108 moves the bucket 100 up and down along the guide beam 102 using the wire rope 104 and laterally in the upper position. A gear structure 202 formed along the guide beam 102 in the direction of the bucket 100; A sheave 120 to which the wire rope 104 is wound and attached to the sheave base 122; Two upper sieve pillars 144 facing each other so as to support the sieve 120 with respect to the sieve base 122, and the upper sieve pillars 144 connected to the upper sieve pillars 144 on both sides thereof. A sheave shaft 128 installed to connect the support beam 126 provided with the center of the support beam 126 and the sieve 120 between the support beam 126 in the middle of the support beam 126; A transmission means coupled to the sheave 120 and transmitting a force applied by the wire rope 104 downward; It consists of first and second body (180A, 180B) that can be folded or folded by the force transmitted by the transmission means, the end of the pair of protrusions 184 of the first and second body (180A, 180B) A scissor assembly 180 coupled to the transmission means by means of a pair of fingers 182 on the opposite side of the protrusion 184 to engage the gear structure 202; And And a lower structure (142, 192, 198) for guiding extension and folding while supporting the scissors assembly (180) from below. According to claim 1, wherein the transmission means A lower sieve column 152 coupled to the upper sieve column 144 so that an upper end 154 protrudes above the sieve base 122 and a lower end 158 extending below the sieve base 122; The lower end 158 of the lower sieve column 152 and the shear assembly 180 to redirect the force from the wire rope 104 transmitted through the lower sieve column 152 to the shear assembly 180. A connecting link 160 pivotally coupled to the distal end of the protrusion 184; And And a link bracket 176 extending downward from at least one side of the sheave base 122 toward at least one of the connection links 160 to support the pivot of the connection links 160. safety device. The method of claim 2, wherein the connection link 160 A first arm 164 pivotably coupled to a lower end 158 of the lower sieve pillar 152; A main body 168 extending in a direction from the first arm 164; Coupling parts 166 rotatably coupled to the link bracket 176 at both ends of the main body 168; And And a second arm 170 which extends downward from the main body 168 and pivotally engages the coupling portion 186 of the distal end of the protrusion 184 of the scissors assembly 180. Bucket safety device for fire fighting equipment. The method of claim 1, wherein the scissors assembly 180 is Tension springs 190 disposed therebetween to pull both ends of the first and second main body 180A, 180B protrusions 184; And Dry fire extinguishing, characterized in that it comprises a cross link 181 coupled to the substructures (142, 192, 198) to allow unfolding and folding at the overlapping portions of the first and second bodies (180A, 180B). Bucket safety device in the facility.

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