KR20150124777A - Unidirectional and bidirectional belt tripper for thermoelectric power plant - Google Patents

Unidirectional and bidirectional belt tripper for thermoelectric power plant Download PDF

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Publication number
KR20150124777A
KR20150124777A KR1020140051764A KR20140051764A KR20150124777A KR 20150124777 A KR20150124777 A KR 20150124777A KR 1020140051764 A KR1020140051764 A KR 1020140051764A KR 20140051764 A KR20140051764 A KR 20140051764A KR 20150124777 A KR20150124777 A KR 20150124777A
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KR
South Korea
Prior art keywords
belt conveyor
scraper
roller stage
coal
belt
Prior art date
Application number
KR1020140051764A
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Korean (ko)
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KR101568345B1 (en
Inventor
김성배
권용준
마재춘
최수복
Original Assignee
한전산업개발 주식회사
(주)강원산업기계
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Priority to KR1020140051764A priority Critical patent/KR101568345B1/en
Publication of KR20150124777A publication Critical patent/KR20150124777A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G21/00—Supporting or protective framework or housings for endless load-carriers or traction elements of belt or chain conveyors
    • B65G21/20—Means incorporated in, or attached to, framework or housings for guiding load-carriers, traction elements or loads supported on moving surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G45/00—Lubricating, cleaning, or clearing devices
    • B65G45/10—Cleaning devices
    • B65G45/12—Cleaning devices comprising scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G47/00—Article or material-handling devices associated with conveyors; Methods employing such devices
    • B65G47/34—Devices for discharging articles or materials from conveyor 
    • B65G47/44—Arrangements or applications of hoppers or chutes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G65/00—Loading or unloading
    • B65G65/30—Methods or devices for filling or emptying bunkers, hoppers, tanks, or like containers, of interest apart from their use in particular chemical or physical processes or their application in particular machines, e.g. not covered by a single other subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04—Bulk
    • B65G2201/045—Sand, soil and mineral ore

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structure Of Belt Conveyors (AREA)

Abstract

The present invention relates to a unidirectional and bidirectional belt tripper for a thermoelectric power plant, which enables the efficient and rapid storage of coal by installing a scrapper in a direction or in both directions according to the position of a storage (silo, chute, etc.). The unidirectional and bidirectional belt tripper for a thermoelectric power plant according to the present invention comprises: a frame (10) which is installed on the top of a belt conveyor for transferring coal for coke making; a roller stage (20) which is arranged under the belt conveyor to be lifted and is lifted to flatten the belt conveyor; a lifting unit (30) which is installed on the bottom of the roller stage and linearly lifts up and down the roller stage to the belt conveyor; first and second chutes (2, 3) which are installed on both sides of the belt conveyor in a width direction and guide the coal for coke making to the storage; a scrapper which guides the coal for coke making transferred on the belt conveyor when the roller stage is lifted up to at least one of the first and second chutes; and a cleaning unit which guides the remaining coal passing through the scrapper to the chutes.

Description

{UNIDIRECTIONAL AND BIDIRECTIONAL BELT TRIPPER FOR THERMOELECTRIC POWER PLANT}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a belt tripper of a thermal power plant, and more particularly, to a belt tripper of a thermal power plant, and more particularly, to a belt tripper of a thermal power plant, Directional and bidirectional combined belt trippers of a thermal power plant that prevent overcasting by raising and lowering the elevators.

Generally, a thermal power plant is a system in which coal is boiled to boil water to boil water to produce steam, the steam is used to rotate the turbine to generate torque, and then electricity is generated from a generator connected to the turbine. The high-temperature combustion gas produced is used to directly produce the electricity by rotating the gas turbine. At this time, the high-temperature exhaust gas is sent to the boiler to generate steam, and the steam is used to turn the turbine .

Here, a coal-fired thermal power plant is a coal-fired power plant that unloads coal that has been loaded on a ship, carries it to low carbon, breaks coal down in a differentiator and burns it well in the boiler, The boiler is used to produce steam at high temperature and high pressure. Turbine that revolves the generator while rotating at high speed by the steam produced by the boiler. Water treatment facility that makes industrial water pure water through various treatment, and pure water that passes through water treatment facility. A circulating water system for circulating the turbine to cool the high-temperature steam in the condenser, a circulating water system for supplying the seawater to cool the high-temperature steam in the condenser, a gas for supplying the air required for combustion in the boiler combustion chamber, And the sulfur component is removed from the desulfurization equipment and discharged into the stack Is equipped with a ventilation device, after the step-up transformer through the production of electricity, while the generator is rotated by the turbine, an electric power transmission equipment to a power plant via the external line transmission towers or the like.

In addition, the coal plant of the coal-fired power plant is provided with a trump device as the coal transferring device.

In general, two rows of belt conveyors are installed along the length of each silo for charging of coking coal. One tripper is installed in each column for the charging of each silo. It is supposed to supply coking coal while moving along the rail with silos.

Conventional installed trippers require a certain amount of time to move to each silo, and a large amount of scattered dust is generated when the height of the apparatus falls from the height at which the coke falls.

In addition, since it takes about 15 minutes to move each silo of the tripper, a tripper that moves about 8 times per shift requires a 2-hour unloading facility shutdown time, Due to the complicated structure, improvements are needed to reduce environmental pollution and safety hazard risks by maintenance and erroneous work.

In order to solve such a problem, there is a registered patent No. 10-1006073 which is patented by the present applicant.

The above-mentioned prior art includes a frame structure installed on an upper portion of a conveyor on which cyanide is conveyed; A roller stage disposed parallel to the lower side of the belt conveyor and vertically spreading the conveyor belt on which the raw coal is placed while being vertically supported by a link structure at a lower portion of the frame structure; A power cylinder installed on the frame structure for operating the roller stage up and down; A link device connected between the rod of the power cylinder and one side of the roller stage and mediating up and down operation of the roller stage; A scraper supported on the inside of the frame structure and approaching the upper surface of the conveyor and arranged obliquely with respect to the traveling direction of the belt conveyor to induce the falling of the coke conveyed on the belt conveyor; And a chute installed on one side of the lower end of the frame structure and guided to the silo side by the scraper while being dropped to one side. Since the charcoal is provided for each silo, a single tripper is installed in each silo It is possible to increase the operation efficiency of the equipment and the charging efficiency of the raw coal. However, since the scrapers are unidirectional, when the silos are disposed on both sides of the belt, There is a drawback that it can not.

Further, since the roller stage is moved up and down by the power cylinder and the four links, the structure is complicated and it is difficult to align all the parts of the roller stage to the same level because the roller stage is pivotally moved by the link.

In addition, there is a disadvantage in that some coal and coal fine particles are detached to the rear side of the scrapers, and the working environment is deteriorated due to scattering, and a large amount of coal tar is generated.

Patent No. 10-1006073

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems and it is an object of the present invention to provide a unidirectional and bidirectional combined belt tree of a thermal power plant capable of efficiently and promptly storing coal by installing scrapers in unidirectional or bidirectional directions depending on the location of storage (silos, The purpose is to provide fur.

It is an object of the present invention to simplify the ascending and descending structure of the roller stage and to raise and lower the roller stage in a straight line instead of the rotation so as to make all the levels equal.

It is a further object of the present invention to direct all coal carried along the belt to the storage.

The unidirectional and bidirectional combined belt tripper of the thermal power plant according to the present invention comprises a frame installed on an upper portion of a belt conveyor to which coking coal is conveyed; A roller stage disposed under the belt conveyor so as to be able to move up and down to planarize the belt conveyor; An elevating means installed at a bottom of the roller stage for linearly raising or lowering the roller stage with the belt conveyor; A chute installed at one or more sides of both sides in the width direction of the belt conveyor and guiding the coke to the storage; A scraper installed at an upper portion of the belt conveyor through the frame to be inclined with respect to a traveling direction of the belt conveyor and guiding the coke conveyed along the belt conveyor to the chute when the roller stage rises; And a cleaning means for guiding the coal residues passed through the scrapers to the chute. The elevating means are disposed on both sides in the width direction of the roller stage and are hinged to each other so that a central portion thereof is foldable, A foldable lift hinged to the roller stage and the base, and an actuator for unfolding or folding the foldable lift to linearly raise or lower the roller stage.

The scraper is characterized by being a linear first scraper for unidirectional feeding, a second scraper of V type for bidirectional feeding, and a foldable third scraper capable of unidirectional and bidirectional feeding.

According to the unidirectional and bidirectional combined belt tripers of the thermal power plant according to the present invention, the raw coal can be supplied to any one silo or silos on both sides through the scrapers, thereby enabling rapid storage.

In addition, since the level of the belt conveyor is maintained as a whole by the straight up and down without rotating the roller stage through the folding type lift, the environment of the workplace can be improved by preventing the collision.

In addition, since no residual coal remains in the belt conveyor through the second cleaning, unnecessary work for carrying and cleaning the coal can be eliminated.

1 is a side view of a unidirectional and bidirectional combined belt tripper of a thermal power plant according to the present invention;
2 is a front view of a uni-directional and bidirectional combined belt tripper of a thermal power plant according to the present invention;
3 is a plan view of a unidirectional and bidirectional combined belt tripper of a thermal power plant according to the present invention.
FIG. 4 is a plan view of a bidirectional and bidirectional combined belt tripper of a thermal power plant according to the present invention, in which a second scraper in both directions is applied.
5 is a plan view of a folding type third scraper of a unidirectional and bidirectional combined belt tripper of a thermal power plant according to the present invention.
6 is a front view showing a cleaning means applied to the unidirectional and bidirectional combined belt tripers of the thermal power plant according to the present invention.
Fig. 7 is an operational view of a unidirectional and bidirectional combined belt tripper of a thermal power plant according to the present invention; Fig.

As shown in FIGS. 1 to 3, the unidirectional and bidirectional combined belt tripper of the thermal power plant according to the present invention includes a frame 10 installed on an upper portion of a belt conveyor 1 to which coking coal is conveyed; A roller stage (20) installed on the bottom of the belt conveyor (1) so as to be able to move up and down to support the belt conveyor (1); A lifting means (30) for lifting the roller stage (20); First and second chutes (2, 3) installed on both sides in the width direction of the belt conveyor (1) and guiding the coke to the first and second silos (2a, 3a) as storages; (FIG. 3) or 50 (FIG. 4) or 60 (FIG. 5)) for guiding the coke conveyed along the belt conveyor 1 to the first and second chutes 2 and 3.

The frame 10 is installed at a predetermined height above the belt conveyor 1 through legs supported on the ground or the belt frame, and the scraper is installed.

The roller stage 20 flatly unfolds the belt conveyor 1 which is progressed in the form of a "U" shape. The roller stage 20 includes a table 21 of a square frame structure, And a plurality of freely rotatable carrier rollers 22 arranged at regular intervals along the direction [the direction].

Since the rotation direction of the carrier rollers 22 is the same as the advancing direction of the belt conveyor 1, the belt conveyor 1 is unfolded flatly without restricting the progress of the belt conveyor 1. [

This roller stage 20 is positioned in parallel with the lower side of the belt conveyor 1 at the lower portion of the frame 10.

The elevating means 30 is constituted by a folding type elevator 31 and an actuator.

The folding type lift 31 is composed of two supports 32, 33 connected by a hinge 34 at the center thereof as a scissors type.

The first and second support rods 32 and 33 are folded and unfolded by the actuator, so that the roller stage 20 is lifted. In this state, the roller stage 20 is lowered while being folded.

One side (upper side) of each of the first and second support rods 32 and 33 is hinged to the table 21 of the roller stage 20 and the other side (lower side) thereof is connected to the base frame And the second support 33 is slidably installed in the base frame for folding, for example, the first support 32 is attached to the roller stage 20, and the second support 33 is slidably installed to the base frame.

The actuator is capable of folding the first and second supports 32 and 33, and a hydraulic / pneumatic cylinder, a motor, or the like is used.

The first to third scrapers 40, 50 and 60 are used singly, the first scrapers 40 are unidirectional, the second scrapers 50 are bidirectional, and the third scrapers 60 are unidirectional and bidirectional .

As shown in FIG. 6, the first scraper 40 is in the form of a plow having a curved cross-sectional shape that cuts the upper part, and is located at the bottom of the frame 10 and close to the upper surface of the belt conveyor 1 (Arranged in a diagonal line so as to smoothly guide cyan to the first and second chutes 2, 3) with respect to the traveling direction of the belt conveyor 1, and the cyanide conveyed on the belt conveyor 1 To the first and second chutes 2 and 3 (the first scraper 40 only guides the coke to the first chute 2). In addition, the first to third scrapers (40, 50, 60) are coated with a Teflon coating material or a coating film on the entire surface of the scrapers (40, 50, 60) to be rubbed against the coking coal so that adhesion of the coking coal can be prevented, . A skirt capable of being elastically deformed may be applied to the lower end of the first scraper 40 to prevent the residual coal such as fine particles from being separated from between the first scraper 40 and the belt conveyor 1.

Since the second and third scrapers 50 and 60 have the same structure, a detailed description thereof will be omitted.

The first scraper 40 has a length corresponding to the entire width of the belt conveyor 1 and guides all of the coke to the first chute 2 without residual wastes.

The first scraper 40 may be mounted on the frame 10 in a detachable manner through bolts, nuts, or the like, and may be installed to be adjustable in angle through a rotating shaft.

There is a limit in bringing the first scraper 40 close to the belt conveyor 1 in order to prevent damage to the belt conveyor 1 and the like. And these gannets generate additional work, so that the first and second cleaners 41 and 42 (refer to FIG. 6) are included in order to remove the residual coal and to direct all of the raw coal to the first and second chutes 2 and 3 .

The primary cleaner 41 is arranged along the longitudinal direction of the first scraper 40 and is detachably coupled to the rear of the first scraper 40 through the fastener in the opposite direction (41a), and is made of a rubber material to prevent damage to the belt conveyor (1).

The secondary cleaner 42 is disposed along the longitudinal direction of the first scraper 40 and is secured to the first scraper 40 or the primary cleaner bracket 41a by a secondary cleaner bracket 42a And is made of a rubber material to prevent the belt conveyor 1 from being damaged.

The first and second cleaners 41 and 42 can be installed with the same clearance as that of the belt conveyor 1 or the clearance between the primary cleaner 41 and the belt conveyor 1 can be provided between the secondary cleaner 42 and the belt conveyor 1, (1).

As shown in FIG. 4, the second scraper 50 has a V-shaped distributed type bi-directional structure that is divided into first and second chutes 2 and 3 so as to be guided along the belt conveyor 1, That is, the first and second guide portions 50a and 50b.

The second scrapers 50 are applied to the first and second scrapers in the same manner as the first scrapers 40.

5, the third scraper 60 has a structure in which the first and second guide portions 60a and 6b are rotatably connected through a hinge and the first and second guide portions 60a and 6b are arranged in a row The coke is led to the first or second chute 2, 3 and the first and second guide portions 60a, 6b are arranged in the V-shape so that the coke is divided into the first and second chutes 2, 3 and guided.

The third and fourth scrapers 60 and 60 are applied to the first and second scrapers 40 and 50, respectively. At this time, the first and second cleaners may be constituted of two pieces such as the first and second guide portions 60a and 60b, or may be configured to be foldable into one (folded by rubber material or folded by hinge connection).

The operation of the unidirectional and bidirectional combined belt tripers of the thermal power plant according to the present invention is as follows.

1 is an initial state, in which the roller stage 20 is disposed under the belt conveyor 1 so that the belt conveyor 1 maintains a "U" shape.

When storing the coke in the first and second silos 2a and 3a, the first through third scrapers 40, 50 and 60 are set according to the selection of the first and second silos 2a and 3a.

Storage of coking coal is divided into one-way and two-way.

1. Unidirectional supply.

The discharge ends of the first scrapers 40 correspond to the first chute 2 and the discharge ends of the third scrapers 60 correspond to the first chute 2 when the cullet is stored only in the first silo 2a among the first and second silos 2a, The first and second guide portions 60a and 60b are arranged in a line so that the discharge end of the first guide portion 60a corresponds to the first chute 2. [ In the unidirectional case, the second scraper 50 is not used. The position of the discharge end may be set such that the first scraper 40 is installed so as to correspond to the second chute 3 or the discharge of the second induction portion 60b of the third scraper 60 So that the cullet is supplied only to the second chute 3 so as to correspond to the second chute 3.

2. Bi-directional supply.

The second scrapers 50 are arranged such that the discharge ends of the first and second induction parts 50a and 50b are connected to the first and second chutes 2 and 3, And the coking material is divided into the first and second guide portions 50a and 50b. In the case of the third scraper 60, the discharge ends of the first and second guide portions 60a and 60b are rotated to correspond to the first and second chutes 2 and 3, And supplied in two.

After the first to third scrapers 40, 50 and 60 are set as described above, the surface of the belt conveyor 1 is conveyed to the lower ends of the first to third scrapers 40, 50 and 60 through the roller stage 20 When the actuator is operated, the first and second support rods 32 and 33 of the folding type lift 31 are unfolded through the hinge as shown in FIG. 7, so that the roller stage 20 is raised and the roller stage 20 lifts the U-shaped belt conveyor 1 to flatten the belt conveyor 1 so that the surface of the belt conveyor 1 comes close to the lower ends of the first to third scrapers 40, 50, 60.

The coke conveyed along the belt conveyor 1 is guided by the first to third scrapers 40, 50 and 60 to receive the first or second chute 2 or 3 in the unidirectional direction, And falls into the chute (2, 3).

Residual coal such as fine powders passes through between the first to third scrapers (40, 50, 60) and the belt conveyor 1, and the residual coal is cleaned in two steps by a primary cleaner and a secondary cleaner, (2) without being left in the first chute (1).

1: belt conveyor, 10: frame
20: roller stage, 30: elevating means
31: folding type lift, 40,50,60: first to third scrapers

Claims (3)

A frame (10) installed on an upper portion of a belt conveyor to which coke is conveyed;
A roller stage (20) placed under the belt conveyor so as to be able to move up and down to planarize the belt conveyor;
An elevating means (30) installed at a bottom of the roller stage and linearly raising or lowering the roller stage to the belt conveyor;
First and second chutes (2, 3) installed at both sides of the belt conveyor in the width direction and guiding coke to the storage;
A scraper installed at an upper portion of the belt conveyor through the frame to be inclined with respect to a traveling direction of the belt conveyor and guiding the coke conveyed along the belt conveyor to one or more sides of the first and second chutes when the roller stage rises; ;
And cleaning means for guiding the coal residues passed through the scrapers to the chute,
The elevating means includes two or more support rods (32, 33) which are respectively disposed on both sides in the width direction of the roller stage and are hinged to each other so that the center portion thereof is foldable and both longitudinal ends thereof are hinged to the roller stage and the base frame ), A folding type elevator (31) composed of a folding type elevator, and an actuator which unfolds or folds the folding type elevator to linearly raise or lower the roller stage. The cleaning device according to claim 1, wherein the cleaning means comprises: a primary cleaner installed at the rear of the scraper and guiding residual coal passed between the scraper and the belt conveyor to the chute; And a secondary cleaner for guiding the coal residues passed between the belt conveyors to the chute. The scraper according to claim 1 or 2, wherein the scraper comprises a first straight scraper (40) for unidirectionally guiding the coke to only one side of the chute, and first and second guide portions (50a, 50b) for guiding the coke to the chutes Directionally dispersed second scraper 50 or first and second guide portions 60a and 60b are foldably connected through a hinge and a discharge end is opened in a linear shape corresponding to the first or second chute Or a folding type third scraper 60 in which discharge ends of the first and second guide portions 60a and 60b are folded into V-shapes corresponding to the first and second chutes 2 and 3, respectively Unidirectional and bidirectional combined belt trippers for thermal power plants.
KR1020140051764A 2014-04-29 2014-04-29 Unidirectional and bidirectional belt tripper for thermoelectric power plant KR101568345B1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108045848A (en) * 2018-01-24 2018-05-18 长沙开元仪器股份有限公司 A kind of two-stage hoisting type coal sample conveying device
KR102138721B1 (en) * 2020-01-30 2020-07-29 주식회사 비와이인더스트리 Unloading device of belt conveyor
CN114803318A (en) * 2022-04-21 2022-07-29 南通绿达通市政园林有限公司 Gardening tool for garden engineering greening

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KR20220069498A (en) 2020-11-20 2022-05-27 두텍 주식회사 Tripper for stacking coal with the windrow method
KR102543662B1 (en) 2021-01-06 2023-06-16 두텍 주식회사 The chute end tensioning device with alternating function for pendulum type telescopic chute

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108045848A (en) * 2018-01-24 2018-05-18 长沙开元仪器股份有限公司 A kind of two-stage hoisting type coal sample conveying device
KR102138721B1 (en) * 2020-01-30 2020-07-29 주식회사 비와이인더스트리 Unloading device of belt conveyor
CN114803318A (en) * 2022-04-21 2022-07-29 南通绿达通市政园林有限公司 Gardening tool for garden engineering greening
CN114803318B (en) * 2022-04-21 2024-04-05 南通丞济光电科技有限公司 Gardening machine tool for landscaping

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