KR101631483B1 - Boiler Bottom Ash Hopper Being Easy To Shock Absorption and Maintenance - Google Patents

Boiler Bottom Ash Hopper Being Easy To Shock Absorption and Maintenance Download PDF

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Publication number
KR101631483B1
KR101631483B1 KR1020160002726A KR20160002726A KR101631483B1 KR 101631483 B1 KR101631483 B1 KR 101631483B1 KR 1020160002726 A KR1020160002726 A KR 1020160002726A KR 20160002726 A KR20160002726 A KR 20160002726A KR 101631483 B1 KR101631483 B1 KR 101631483B1
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KR
South Korea
Prior art keywords
flange
main
support pipe
pipe
main support
Prior art date
Application number
KR1020160002726A
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Korean (ko)
Inventor
이희
Original Assignee
(주)원프랜트
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Priority to KR1020160002726A priority Critical patent/KR101631483B1/en
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Publication of KR101631483B1 publication Critical patent/KR101631483B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J3/00—Removing solid residues from passages or chambers beyond the fire, e.g. from flues by soot blowers
    • F23J3/06—Systems for accumulating residues from different parts of furnace plant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • F16F15/04—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using elastic means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2213/00—Chimneys or flues
    • F23J2213/70—Safety arrangements

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

According to the present invention, a boiler bottom ash hopper easy to absorb a shock and be maintained has a support device (100) which comprises: a main support pipe (110); an upper support pipe (120); a lower support pipe (130); a tensile wire (140); a reinforced frame (150); a compression member (160); a reinforced frame (170); a main support (180); and an auxiliary support (190), thereby absorbing shock energy applied to a bottom ash hopper and improving a support force at the same time so as to protect the bottom ash hopper to stably perform a function.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a boiler bottom hopper,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a boiler submerged hopper which is easy to absorb shocks and maintains, and more particularly, to a boiler submerged hopper which absorbs shock energy applied to a submerged hopper efficiently and stably functions, The present invention relates to a boiler sub-hopper which is capable of effectively dispersing impact energy, thereby greatly improving stability in terms of structure, and capable of shock absorption and maintenance.

The lower hopper of the power plant temporarily stores the ash and clinker falling from the furnace and periodically discharges it to the ash pond. The inner wall of the hopper is laid with refractory to protect the hopper plate, .

In coal-fired power plants, which have a large number of domestic thermal power plants, many coal ash is burned in boilers. Collecting, transporting and processing facilities of coal fly ash are installed in coal-fired power plants.

The coal ash collection process used in general coal-fired power plants is such that coal supplied from a coal bunker is pulverized by a pulverizer and then supplied to a boiler combustion chamber and burned. Fly ashes generated in the combustion process are collected by an electrostatic precipitator And stored in a raw material storage tank, and then purified through a refining facility.

These refined fly ash is mainly used as a concrete admixture in remicon factories, but it has been used in various fields such as embankment, land improvement material, lightweight aggregate production, and agriculture fertilizer.

Furthermore, in the case of the low-boiler generated at the bottom of the boiler, it can not be recycled like a non-ash, but it is transferred to a Ash Pond using a conveyor belt and a high-pressure pump in the transfer tank to be buried.

Here, the boiler sub-hopper is installed in the lower part of the boiler, and collects the remaining ash from the boiler and transfers it to another place. It is largely divided into a wet type and a dry type, and the wet type is burnt in the boiler with water filled therein The fallen inferiority is piled up in it, and the accumulated inferiority is taken out by the Moving Chain System and transferred through the rail or conveyor belt system. , And the hot and dry under-take is withdrawn by the moving chain system and conveyed through the conveyor belt system (Conveyor Belt System).

However, such a conventional technique has a problem in that a boiler of a coal-fired power plant has a height of about 100 m and a length of a bottom portion of 20 m, resulting in a pressure drop due to internal combustion characteristics of the boiler and a high- The boiler is shaken up and down and left and right due to the sudden evaporation of the treated water. Therefore, such a vibration of the boiler causes a large impact energy to be transmitted to the boiler sub-hopper installed at the lower end of the boiler, There has been a serious problem that the supporter supporting the ground is damaged or deformed, and even the boiler lower hopper itself is damaged or deformed.

Therefore, the main object of the present invention is to absorb the impact energy applied to the lower hopper and to improve the supporting force, thereby effectively coping with the lower hopper, so that the lower hopper is protected to perform the function stably, Maintenance and repair work can be carried out. In addition, sufficient compression force is applied to the lower hopper, and tension is applied to the upper portion of the main support by tension wires, so that the impact energy can be efficiently attenuated and dispersed. And to provide a boiler submerged hopper which is capable of greatly improving stability in terms of structure and facilitating shock absorption and maintenance.

In order to achieve the above object, the present invention provides a boiler submerged hopper which is easy to absorb shocks and maintains, comprises a pulley coupled to upper and lower portions of an interior of the boiler submerged hopper, a tension supporting piece formed on a side opposite to each pulley, A main support pipe which is formed by joining the tension supporting pieces to each other so as to form a cross shape in a cross-sectional shape by coupling the tension supporting pieces horizontally and vertically, and a lower paper retaining pipe fixedly connected to the lower side of the main support pipe, A tensile wire connected to the lower side pulley and the upper side tensile support piece of the main support pipe and connected to the upper side pulley and the lower side tensile support piece to apply elastic force while applying a tensile force, A reinforcing frame attached horizontally and parallel to each other, A main support vertically coupled to both ends of the reinforcement frame and coupled to the tension wires in the forward and backward directions to provide a tensioned state, and a main support member vertically coupled to the center of the reinforcement frame, As a basic feature of the technical construction.

Therefore, the boiler submerged hopper of the present invention can be installed in a state in which the tension wire is stretched in a state in which the tension wire is stretched so that the tension force of the tension wire in the tension state can be changed according to the direction of the impact energy, So that shock absorption and tensile are generated at the same time, thereby enhancing the tensile force and absorbing the energy simultaneously, so that the shock absorption and the supporting force are greatly improved, Maintenance and repair work, and the lower hopper is stably protected to prevent damage or breakage. In addition, the reinforcing frame is installed in the longitudinal direction so that sufficient compressive force can be applied by connecting or bending, and at the same time, So as to reduce the mutual displacement and acceleration. Due to this high attenuation to effectively absorb a shock wave barrier, such as the impact energy it is effective to allow secure low ash hopper.

1 is a perspective view showing a state of installation of a boiler lowering hopper which is easy to absorb shock and maintain in accordance with the present invention;
FIG. 2 is a perspective view illustrating a state in which a main support of a boiler submerged hopper is easily absorbed and maintained in accordance with the present invention. FIG.
FIG. 3 is a perspective view showing a state in which a main support is separated from a boiler sub-hopper according to an embodiment of the present invention. FIG.
FIG. 4 is a front view showing a support portion of a boiler submerged hopper which is easy to absorb shock and maintain in accordance with the present invention. FIG.
FIG. 5 is a perspective view showing the entire support of a boiler submerged hopper which is easy to absorb shock and maintain according to the present invention. FIG.
6 is a sectional view showing an upper shock absorbing portion of a boiler submerged hopper which is easy to absorb shock and maintain according to the present invention.
FIG. 7 is a cross-sectional view showing a shock absorbing portion of a boiler submerged hopper which is easy to absorb shock and maintain in accordance with the present invention. FIG.
FIG. 8 is an enlarged front view of a compression member portion of a boiler submerged hopper which is easy to absorb shock and maintain in accordance with the present invention; FIG.
9 is a front view showing an installation state of a boiler sub-hopper which is easy to absorb shock and maintain in accordance with the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

As shown in FIGS. 1 to 9, the boiler submerged hopper of the present invention has a shock absorbing and maintenance-friendly boiler submerged hopper which is composed of upper and lower pulleys 113, respectively. The upper and lower pulleys 113 are coupled horizontally and vertically, A main support pipe 110 formed by connecting the main support pipe 110 and the lower support hopper 1 in such a manner that the main support pipe 110 is connected to the lower support hopper 1, The main support pipe 110 includes a main support pipe 110 and a main support pipe 110. The main support pipe 110 is connected to the main surface of the main support pipe 110, A tension wire 140 which is coupled to the upper and lower holding pipes 120 and 130 so as to be elastically connected to the upper and lower holding pipes 130 and 130 by a spring 142, (120) and the lower hopper (1) horizontally A reinforcing frame 150 attached between the pair of reinforcing frames 150 so as to apply a compressive force to the pair of reinforcing frames 150 and a reinforcing frame 160 coupled to left and right corners of the lower portion of the lower frame 1, A main support 180 which is vertically coupled to both ends of the reinforcement frame 170 and connects the tension wires 181 to each other in a forward and backward direction to allow a tensioned state to pass therethrough, And an auxiliary support 190 for coupling.

The main support pipe 110 has a main flange 111 formed at the upper and lower ends thereof and a support piece 112 for supporting the pulley 113. The support piece 112 has pulleys 113 And the pulleys 113 and the support pieces 112 on the upper and lower sides are coupled horizontally and vertically so as to intersect each other so as to form a cross shape in a cross-sectional state.

It is preferable that a coupling hole 114 is formed in the pulley 113 of the main support pipe 110 so that the pulley 113 can be rotated by pin coupling so that the coupling hole 114 is attached to the support piece 112.

The upper support pipe 120 is provided with a connecting member 122 attached to the lower hopper 1 at a predetermined inclination angle so that the connecting member 122 is provided with bending means So that they can be smoothly joined and easily joined together.

A flange 121 corresponding to the upper main flange 111 of the main support pipe 110 is formed in the upper support pipe 120 so that the main flange 111 and the flange 121 can be guided It is preferable that the main flange 111 and the flange 121 are coupled to each other by a rod 127 so that the distance between the main flange 111 and the flange 121 can be reduced.

In this case, a two-stage guide pipe 126 is provided to surround the compression spring 126 so that the compression spring 125 is inserted between the flange 121 of the upper support pipe 120 and the main flange 111, .

In addition, a tension supporting piece 123 is formed on the upper support tube 120, and a through hole 124 is formed in the tension supporting piece 123 to allow the tension wire 140 to pass therethrough.

The lower gripper tube 130 has a connecting member 132 attached to a supporting block that is embedded in the lower surface of the lower holding paper tube and firmly supports the lower supporting paper tube 130 at a predetermined angle of inclination so that the connecting member 132 is provided with bending means So that it can be smoothly brought into close contact with the lower end of the body 110,

A flange 131 corresponding to the lower main flange 111 of the main support pipe 110 is formed in the lower gripping tube 130 so that the main flange 111 and the flange 121 can be spaced apart from each other It is preferable that the main flange 111 and the flange 121 are fastened to each other so that the gap between the main flange 111 and the flange 121 can be reduced.

Here, a two-stage guide pipe 136 for covering the compression spring 136 with the compression spring 135 inserted between the flange 131 of the lower branch pipe 130 and the main flange 111 is formed and covered .

A tension supporting piece 133 is formed on the lower holding tube 130 and a through hole 134 is formed in the tension supporting piece 133 to allow the tension wire 140 to pass therethrough.

The tensile wires 140 are formed in pairs so that both ends of the tension wires 140 are connected to the pulleys 113 horizontally and vertically installed on the upper and lower sides of the main support pipe 110, Through the through holes (124, 134) of the support pieces (123, 133).

In addition, a screw portion 141 is formed at both ends of the tension wire 140 and is fastened to the screw portion 141 so as to fix the tension wire 140 having the adjusting screw 144 to maintain the tension state. do.

It is preferable that the reinforcing frames 150 are formed in pairs so that they are attached upward from the lower side of the upper support pipe 120 and are attached adjacent to the lower hopper 1 in parallel so that a compressive force can be applied easily .

A plurality of the compression members 160 are installed between the pair of reinforcing frames 150 so that the coupling pieces 161 are attached to the reinforcing frame 150 in a corresponding manner and a screw pipe 163 is attached to the coupling pieces 151 And the hinge 162 are coupled to each other so that the hinge 162 is pivoted, but the corresponding screw pipe 163 is connected by the connecting screw 164 so that the compression force can be applied.

Here, the right and left screws of the threaded pipe 163 and the connecting rod 164 are formed by left and right screws so that the compression force can be adjusted by rotating or rotating the connecting rod 164.

The reinforcing frame 170 is coupled to the left and right corners of the lower side of the lower hopper 1 so that the reinforcing frame 170 can be vertically coupled to the front and rear ends of the reinforcing frame 170, It is preferable that a plurality of fastening members are formed in the longitudinal direction of the reinforcing frame 170.

Absorbing member 182 is attached to the lower portion of the coupling plate 184 while the coupling plate 184 is vertically coupled to both ends of the reinforcing frame 170, The coupling block 183 is fixed to the ground and the guide rail 2 to firmly support the coupling block 183.

Further, the tension wire 181 is coupled to the coupling plate 184 of the main support 180 back and forth to tension and fix the tension wire 181.

Therefore, the upper portion of the main support 180 is connected to the tension wire 181, and is tensioned and tensioned to form a separate reinforcing body different from the lower hopper 1, thereby inducing a phase angle to be different due to the difference of the natural frequency.

That is, tension of the tension wire 181 coupled to the lower hopper 1 causes a difference in natural frequency and phase angle to induce mutual displacement and acceleration to be attenuated

The auxiliary support 190 is provided with a pedestal 193 which closely contacts or fastens to the reinforcing frame 170 and a base 191 which is placed in the guide rail 2 and which absorbs shock between the pedestal 193 and the base 191 Member 192 as shown in FIG.

The operation of the present invention will be described as follows.

First, when impact energy is generated due to slag falling or the like, the impact energy is absorbed by the compression springs 125 and 135 on the upper and lower sides of the main support 110, and at the same time, The tensile wire 140 is stretched in a tensioned state so that the tensile force of the tensile wire 140 in the tensile state can be changed in accordance with the direction of the impact energy, Since the elasticity of the wire 140 acts in opposite directions to each other, the shock absorption and the tensile are generated at the same time according to the direction, so that the tensile force is improved and the energy is absorbed at the same time. To prevent damage or breakage, and at the same time to ensure safe and smooth functioning of its own functions Since the reinforcement frame 150 is installed in the longitudinal direction and a sufficient compressive force can be applied by the connecting screw 164, the impact energy can be efficiently dispersed to suppress damage or breakage of the lower hopper 1, It can be greatly improved.

Further, not only can the main support 180 and the auxiliary support 190 press and support the upper side of the lower hopper 1 and securely support the lower hopper 1, but also the tensile wires 181 of the main support 180 So that the phase angle is different due to the difference of the natural frequencies of the lower hopper 1 and the main support 180 so that the natural frequency and the phase angle are different from each other and the mutual displacement and acceleration are attenuated Absorbing members 182 and 192 absorb the impact energy applied simultaneously with the shock absorbing members 182 and 192 so that the shock absorber 182 and 192 can absorb shock waves such as impact energy efficiently to thereby protect the lower hopper 1 safely.

1: Lower hopper 2: Guide rail
10: Feed roller 100: Support device
110: main support tube 111: flange
112 Support 113: Pulley
114: connector 120: upper support tube
121: flange 122: connecting member
123: Tension support piece 124: Through hole
125: compression spring 126: guide tube
127: guide rod 130: bottom guide tube
131: flange 132: connecting member
133: Tension support piece 134: Through hole
135: compression spring 136: guide tube
137: guide rod 140: tensile wire
141: screw portion 142: spring
143: throttle 144: regulator
150: reinforcing frame 160: compression member
161: coupling piece 162: hinge
163: Nasuwan 164: Connected to the shrine
170: reinforcing frame 171: fastening plate
180: main support 181: tension wire
182: shock absorbing member 183: engaging block
184: coupling plate 190: auxiliary support
191: base 192: shock absorbing member
193: Stand

Claims (2)

A main support pipe 110 formed by joining upper and lower pulleys 113 to each other so as to form a cross shape in a cross-sectional state by coupling the upper and lower pulleys 113 horizontally and vertically,
An upper support pipe 120 for fixing the upper portion of the main support pipe 110 to the lower hopper 1 and fixing the upper portion of the main support pipe 110 with a compression spring 125,
A lower paper stock tube 130 for connecting and fixing the lower part of the main support pipe 110 to the ground and providing a resilient force with a compression spring 135,
A pair of upper and lower pulleys 113 of the main support pipe 110 are formed so as to be respectively coupled to the upper support pipe 120 and the lower retainer pipe 130 by tension, A tension wire 140,
A pair of reinforcing frames 150 attached horizontally and parallel to the upper support pipe 120 and the lower hopper 1,
The coupling pieces 161 are mounted so as to correspond to each other so that a compressive force can be applied to the pair of reinforcing frames 150 and the screw pipes 163 are coupled to the coupling pieces 151 with the hinge 162, A compression member 160 for connecting and rotating the corresponding screw pipe 163 with a connecting screw 164,
A reinforcing frame 170 coupled to the left and right corners of the lower hopper 1 back and forth,
A main support 180 that is vertically coupled to both ends of the reinforcing frame 170 and connects the tension wires 181 to each other in a forward and backward direction to provide a tensioned state,
And an auxiliary support (190) vertically coupled to the center of the reinforcing frame (170).
The method according to claim 1,
The main support pipe 110 has a main flange 111 formed at the upper and lower ends thereof and a support piece 112 for supporting the pulley 113. The support piece 112 has pulleys 113 Combine; The upper support pipe 120 is formed with a flange 121 corresponding to the upper main flange 111 of the main support pipe 110 and a flange 121 corresponding to the main flange 111 and the flange 121, And a tension spring 125 is inserted between the flange 121 and the main flange 111 so that the compression spring 125 is inserted between the flange 121 and the main flange 111, 124) to penetrate and fix the tensile wire (140). The lower holding paper pipe 130 is formed with a flange 131 corresponding to the lower main flange 111 of the main support pipe 110 and is fixed to the main flange 111 and the flange 121, And a tension spring 135 is inserted between the flange 131 and the main flange 111 so that the tension spring 135 is inserted into the through hole 134 To penetrate and fix the tensile wire 140; The tensile wires 140 are formed in pairs so that both ends of the tension wires 140 are connected to the pulleys 113 horizontally and vertically installed on the upper and lower sides of the main support pipe 110, And a screw part 141 is formed at both ends of the tension wire 140 and is fastened to the screw part 141. The adjusting screw 144 is provided and tensioned The tensile wire 140 is fixed so that the tensile state can be continuously maintained; The compression member 160 is formed so that the right and left screws of the threaded pipe 164 and the threaded pipe 164 are formed as a left screw and a right screw so that the compression force can be adjusted by rotating or rotating the connecting screw 164 Features a shock absorber and easy to maintain boiler sub-hopper.
KR1020160002726A 2016-01-08 2016-01-08 Boiler Bottom Ash Hopper Being Easy To Shock Absorption and Maintenance KR101631483B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020160002726A KR101631483B1 (en) 2016-01-08 2016-01-08 Boiler Bottom Ash Hopper Being Easy To Shock Absorption and Maintenance

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KR1020160002726A KR101631483B1 (en) 2016-01-08 2016-01-08 Boiler Bottom Ash Hopper Being Easy To Shock Absorption and Maintenance

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110375294A (en) * 2019-08-09 2019-10-25 新乡市汇能玉源发电有限公司 A kind of boiler return feeder
CN115875699A (en) * 2022-11-30 2023-03-31 常熟市林茂机械设备有限公司 Multi-furnace body connecting structure with anti-seismic performance

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001065645A (en) * 1999-08-24 2001-03-16 Jiyointo Center Kk Wire pulling hardware and wire device
KR100965679B1 (en) * 2008-03-17 2010-06-24 한국남동발전 주식회사 The Supporting Apparatus of The Boiler Bottom Ash Hopper Having The Shock Absorbing Device
KR101056576B1 (en) * 2010-10-29 2011-08-11 박대근 A fixing device of guide-signage
KR101416204B1 (en) * 2012-07-03 2014-07-10 주식회사 다음이앤씨 Device for reinforcing shearing force and negative moment of concrete structure with box type including steal beam

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001065645A (en) * 1999-08-24 2001-03-16 Jiyointo Center Kk Wire pulling hardware and wire device
KR100965679B1 (en) * 2008-03-17 2010-06-24 한국남동발전 주식회사 The Supporting Apparatus of The Boiler Bottom Ash Hopper Having The Shock Absorbing Device
KR101056576B1 (en) * 2010-10-29 2011-08-11 박대근 A fixing device of guide-signage
KR101416204B1 (en) * 2012-07-03 2014-07-10 주식회사 다음이앤씨 Device for reinforcing shearing force and negative moment of concrete structure with box type including steal beam

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110375294A (en) * 2019-08-09 2019-10-25 新乡市汇能玉源发电有限公司 A kind of boiler return feeder
CN115875699A (en) * 2022-11-30 2023-03-31 常熟市林茂机械设备有限公司 Multi-furnace body connecting structure with anti-seismic performance
CN115875699B (en) * 2022-11-30 2023-11-21 常熟市林茂机械设备有限公司 Multi-furnace-body connecting structure with anti-seismic performance

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