CN113187296A - Closed coal shed structure device based on three-core round steel net rack and skeleton film - Google Patents
Closed coal shed structure device based on three-core round steel net rack and skeleton film Download PDFInfo
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- CN113187296A CN113187296A CN202110424599.1A CN202110424599A CN113187296A CN 113187296 A CN113187296 A CN 113187296A CN 202110424599 A CN202110424599 A CN 202110424599A CN 113187296 A CN113187296 A CN 113187296A
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- E—FIXED CONSTRUCTIONS
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- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H7/00—Construction or assembling of bulk storage containers employing civil engineering techniques in situ or off the site
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- E—FIXED CONSTRUCTIONS
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- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/34—Extraordinary structures, e.g. with suspended or cantilever parts supported by masts or tower-like structures enclosing elevators or stairs; Features relating to the elastic stability
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Abstract
The invention discloses a closed coal shed structure device based on a three-center round steel net rack and a skeleton film, which comprises a closed coal shed body, a middle upright post and a side span foundation, wherein the closed coal shed body is of a gull-shaped structure, the middle upright post and the side span foundation are both positioned below the closed coal shed body, the upper end of the middle upright post is fixed in the middle of the closed coal shed body, the upper end of the side span foundation is fixed at the end part of the closed coal shed body, and a gutter system is arranged at the middle position of the top of the closed coal shed body.
Description
Technical Field
The invention belongs to the field of closed modification of coal storage yards of thermal power plants, and relates to a closed coal shed structure device based on a three-core round steel net rack and a skeleton film.
Background
The open-air arrangement of the coal storage yard of the thermal power plant has the problems of environmental pollution, substandard environmental evaluation, influence on safe production and the like, and causes three main forms of harm of coal dust, coal pile explosion and coal pile spontaneous combustion to the environment. The environmental management technology for preventing and controlling the dust pollution of the coal yard in the thermal power plant can adopt measures such as a wind-shielding dust-suppression wall, a dry coal shed, a totally-closed coal shed and the like. The whole coal storage yard environment is treated, so that static dust generation of the stored coal can be avoided, and the diffusion of dynamic dust generation is inhibited. With the improvement of the environmental protection requirement in recent years, a newly-built power plant basically needs to be matched with a closed coal yard to be built, and the open-air coal yard of the original power plant is gradually closed. Along with further strict requirements of national energy-saving and environment-friendly laws and regulations and government-related documents, the coal yard closed project of the thermal power plant is developed in a blowout mode.
Dry coal sheds were built in individual thermal power plants in southern regions at the end of 1960 s. In the early 70 s, dry coal sheds quickly covered most provinces in the south of the Yangtze river and were listed as design standards in the design rules. In the early 90 s, dry coal sheds were loaded in the technical code for designing thermal power plants and widely pushed, the dry coal sheds of the power plants are basically arranged in local areas of a coal yard, the span of the dry coal sheds is generally not large, and the length of the dry coal sheds is slightly larger than that of a stacker-reclaimer. There are three main engineering examples of totally-enclosed coal sheds: a three-core cylindrical surface net rack structure coal shed, a prestressed pipe truss structure coal shed and a gas film type totally-closed coal shed. In the 60's of the 20 th century, the first air film buildings in the world were built in north america, and thousands of air film buildings have been built worldwide. The air film is a novel building with high technological content in a new era, and the air film building in China is under vigorous development.
At present, the project adopting the local dry coal shed is gradually reconstructed into the closed coal shed, and the environmental management of the coal yard finally enters the stage of the totally closed coal shed. The conventional three-core cylindrical surface net rack scheme is suitable for projects within 150m span, the prestressed pipe truss scheme is suitable for projects above 120m span, for projects with ultra-large span, the prestressed pipe truss scheme is basically adopted at present, and the maximum span in the project implemented at present is 229 m. The large-span projects of the gas film type coal shed are more and more, and the maximum span in the project implemented at present is 180 m.
Most of the traditional dry coal shed is formed by steel mesh frames and colored steel plate enclosures, the steel mesh frames are good in space stress performance, and the dry coal shed is suitable for common large-span and load-hanging industrial buildings and is widely applied to the fields of aviation, automobiles and the like. Due to the structural characteristics, the span is generally not more than 120m, and the cost is increased sharply due to the excessively large span. In order to save the manufacturing cost as much as possible, shorten the construction period and improve the durability of the main structure of the coal shed in a high-corrosion coal yard environment, the prestressed pipe truss structural system is more and more widely applied to the field of large-span closed coal yards, and the structural closure of the span between 90m and 200m can be realized.
At present, the following design schemes exist for the closed coal shed with the ultra-large span of more than 180 m. 1. Two independent parallel closed coal sheds, such as a fertilizer-mixing two-power plant, Huaneng nest lake power generation limited company and the like, are adopted, the scheme occupies a large area of the original coal piling area in the middle and is used for building a coal shed foundation and a middle channel, so that the original coal storage amount is reduced by about 20-30%, and more closed areas of the coal sheds need to be increased. 2. The single-cylinder single-span closed coal shed is adopted, for example, a closed coal shed is newly built in a national electric square village power plant, the span is 229m, the length is 254m, a pipe truss structure scheme is adopted, the closed coal shed is already built at present and is the domestic maximum span closed coal shed, and the scheme has the advantages that the middle coal pile is not influenced and the storage capacity is large; the roof does not have the problem of a large amount of accumulated snow, but the unit area of the roof has large steel consumption and higher cost; the method needs on-site processing, and has high processing difficulty and long construction period. 3. The double-cylinder double-span 'seagull-shaped' closed coal shed is adopted, for example, the closed coal shed of a second power plant at the rock cave entrance of Shanghai province in Huaneng province has the total length of 280m, the total span of 215m and the span of each span of 97.5m, a space grid structure is adopted, the two spans are continuously arranged, the side-span grid supports are arranged on the ground, the middle span is provided with a plurality of upright posts, and the grid supports are arranged on the tops of the upright posts, so that the reserve capacity of the coal storage field is basically kept unchanged before the coal storage field is closed; the double-span design is adopted, the middle is provided with a support, and the grid structure is stable; the steel consumption per unit area is small, the cost is relatively low, and the like, but the low-lying part of the roof on the upper part of the column is easy to accumulate snow in winter, is difficult to remove, is easy to cause stress concentration, and has great potential safety hazard.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a closed coal shed structure device based on a three-core round steel net rack and a framework film, which has the characteristics of large span, high safety, low cost and small steel consumption in unit area.
In order to achieve the purpose, the closed coal shed structure device based on the three-core round steel net rack and the skeleton film comprises a closed coal shed body, a middle upright post and an edge-span foundation, wherein the closed coal shed body is of a gull-shaped structure, the middle upright post and the edge-span foundation are both positioned below the closed coal shed body, the upper end of the middle upright post is fixed in the middle of the closed coal shed body, the upper end of the edge-span foundation is fixed at the end part of the closed coal shed body, and a gutter system is arranged in the middle of the top of the closed coal shed body.
The closed coal shed body comprises a steel frame and a membrane closed system, wherein the membrane closed system is positioned on the steel frame, the steel frame is of a gull-shaped structure, and the upper ends of the middle upright posts and the upper ends of the side span foundations are connected with the steel frame.
And a ventilation skylight is arranged at the top of the closed coal shed body.
The closed coal shed body is internally provided with a coal pile.
And the outer side of the middle upright post is provided with an upright post protection system for protecting the middle upright post.
The structure also comprises a midspan foundation, wherein the middle upright post is erected on the midspan foundation.
The width of the closed coal shed body is more than or equal to 180 m.
The gutter system is characterized by further comprising a drainage channel and a waterproof turned edge positioned at the end part of the gutter system, wherein the drainage channel is communicated with a water outlet of the gutter system.
The inner wall of the gutter system is provided with a heating snow-removing device.
The invention has the following beneficial effects:
when the closed coal shed structure device based on the three-core round steel net rack and the skeleton membrane is operated, the closed coal shed body is of a gull-shaped structure, the upper end of the middle upright post is fixed in the middle of the closed coal shed body, and the upper end of the side span foundation is fixed at the end part of the closed coal shed body, wherein the two sides of the closed coal shed body are symmetrically arranged, so that the feasibility of closing a super-large-span coal yard by adopting the three-core round steel net rack and the skeleton membrane is realized, energy and land are saved, the span is large, in addition, the vertical load in the middle of the closed coal shed body is effectively offset through the middle upright post, the net rack structure is stable, the horizontal loads of the middle upright post are balanced, and the horizontal thrust of an upper structure system to the foundation is reduced. In addition, the middle part of the whole closed coal shed body is only provided with the middle upright post, the inner space is larger, the shielding is less, the construction is convenient, and the steel consumption of the unit area is small. Simultaneously, the middle part of sealing the coal shed body is provided with the gutter system, realizes the effective emission of sleet water, prevents that sleet water from getting into inside corruption steel construction, and the security is higher.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Wherein, 1 is a closed coal shed body, 2 is a membrane closed system, 3 is a middle upright post, 4 is an upright post protection system, 5 is a coal pile, 6 is a gutter system, 7 is an edge-span foundation, 8 is a mid-span foundation and 9 is a ventilation skylight.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
referring to fig. 1, the closed coal shed structure device based on the three-core round steel net rack and the skeleton film of the invention comprises a closed coal shed body 1, a middle upright post 3 and a side span foundation 7, wherein the closed coal shed body 1 is of a gull-shaped structure, the middle upright post 3 and the side span foundation 7 are both positioned below the closed coal shed body 1, the upper end of the middle upright post 3 is fixed at the middle part of the closed coal shed body 1, and the upper end of the side span foundation 7 is fixed at the end part of the closed coal shed body 1; wherein, closed coal canopy body 1 includes steel frame and membrane closed system 2, and wherein, membrane closed system 2 is located the steel frame, the steel frame is gull-shaped structure, the upper end of center pillar 3 and the upper end of sidespan basis 7 all with the steel frame is connected, realizes adopting three heart round steel rack + skeleton membrane to carry out super large-span coal yard confined feasibility.
Furthermore, a gutter system 6 is arranged in the middle of the top of the closed coal shed body 1, the coal shed roof structure further comprises a drainage channel and a waterproof turning edge positioned at the end part of the gutter system 6, wherein the drainage channel is communicated with a water outlet of the gutter system 6, the coal shed roof structure with super-large span is closed, meanwhile, the effective discharge of rain and snow water is realized, the rain and snow water is prevented from entering an internal corrosion steel structure, a heating snow removal device can be considered in areas with large accumulated snow, and meanwhile, later-stage dust and snow removing operation can be carried out by people.
Further, a ventilation skylight 9 is arranged at the top of the closed coal shed body 1, and air in the closed coal shed body 1 flows through the ventilation skylight 9.
Further, there is the coal heap 5 in the closed coal canopy body 1, wherein, the coal heap 5 is located between middle standing pillar 3 and the side span basis 7, and wherein, the intermediate position only has middle standing pillar 3, reduces the influence to coal heap 55 coal storage volume, under the same coal storage volume condition, need not increase the total area of closed coal canopy, has reduced the overall investment of engineering.
Further, the outer side of the middle upright post 3 is provided with an upright post protection system 4 for protecting the middle upright post 3, so that the coal pile 5 is prevented from corroding the middle upright post 3, the vehicle is prevented from colliding and damaging the middle upright post 33, and the safety performance of the structure is improved.
Further, the structure also comprises a midspan foundation 8, wherein the middle upright post 3 is erected on the midspan foundation 8.
The invention can meet the environmental protection requirement of coal yard sealing, and realizes the feasibility of sealing the ultra-large span coal yard by adopting the three-core round steel net rack and the skeleton film, and the width of the sealing coal shed body 1 is more than or equal to 180 m; meanwhile, the aim of reducing the total investment of the project by the smaller total area of the closed coal shed under the condition of the same coal storage amount is achieved.
It should be noted that, there is a row of columns in the middle of the coal yard, although the column spacing is large, the unloading operation and forklift operation of the coal car will be slightly affected, and there are a few dead angles and blind areas for coal taking due to the columns in the middle.
Claims (9)
1. The utility model provides a closed coal canopy constructional device based on three heart round steel rack and skeleton membrane, a serial communication port, including closed coal canopy body (1), center pillar (3) and sidespan basis (7), wherein, closed coal canopy body (1) is gull-shaped structure, center pillar (3) and sidespan basis (7) all are located the below of closed coal canopy body (1), and the upper end of center pillar (3) is fixed in the middle part of closed coal canopy body (1), the upper end of sidespan basis (7) is fixed in the tip of closed coal canopy body (1), the intermediate position department at closed coal canopy body (1) top is provided with gutter system (6).
2. The enclosed coal shed structure device based on the three-core round steel net rack and the skeleton film as claimed in claim 1, wherein the enclosed coal shed body (1) comprises a steel frame and a film enclosed system (2), wherein the film enclosed system (2) is located on the steel frame, the steel frame is of a gull-shaped structure, and the upper ends of the middle upright posts (3) and the upper ends of the side span foundations (7) are connected with the steel frame.
3. The closed coal shed structure device based on the three-core round steel net rack and the skeleton membrane as claimed in claim 1, characterized in that a ventilation skylight (9) is arranged at the top of the closed coal shed body (1).
4. The closed coal shed structure device based on the three-core round steel net rack and the skeleton membrane as claimed in claim 1, wherein the closed coal shed body (1) is internally provided with a coal pile (5).
5. The closed coal shed structure device based on the three-core round steel net rack and the skeleton membrane as claimed in claim 1, wherein an upright post protection system (4) for protecting the middle upright post (3) is arranged on the outer side of the middle upright post (3).
6. The closed coal shed structure device based on the three-core round steel net rack and the skeleton membrane as claimed in claim 1, characterized by further comprising a mid-span foundation (8), wherein the middle upright post (3) is erected on the mid-span foundation (8).
7. The closed coal shed structure device based on the three-core round steel net rack and the skeleton film as claimed in claim 1, wherein the width of the closed coal shed body (1) is more than or equal to 180 m.
8. The closed coal shed structure device based on the three-core round steel net rack and the skeleton membrane as claimed in claim 1, further comprising a drainage channel and a waterproof turned edge positioned at the end part of the gutter system (6), wherein the drainage channel is communicated with a water outlet of the gutter system (6).
9. The closed coal shed structure device based on the three-core round steel net rack and the skeleton film as claimed in claim 1, characterized in that a heating snow-removing device is arranged on the inner wall of the gutter system (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110424599.1A CN113187296A (en) | 2021-04-20 | 2021-04-20 | Closed coal shed structure device based on three-core round steel net rack and skeleton film |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110424599.1A CN113187296A (en) | 2021-04-20 | 2021-04-20 | Closed coal shed structure device based on three-core round steel net rack and skeleton film |
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| CN113187296A true CN113187296A (en) | 2021-07-30 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002057572A2 (en) * | 2001-01-22 | 2002-07-25 | Mara D.O.O. Tvornica Kuca I Hala | The flat-soffit large-span industrial building system |
| CN202810303U (en) * | 2012-08-30 | 2013-03-20 | 江西省电力设计院 | Double-span dry coal shed |
| CN203878882U (en) * | 2013-12-24 | 2014-10-15 | 北京华电润泽环保有限公司 | Dry coal shed |
| CN109220393A (en) * | 2018-09-27 | 2019-01-18 | 中冶东方工程技术有限公司 | It is a kind of to prevent the twin spans of accumulated snow or multispan arch greenhouse at gutter |
| CN214885972U (en) * | 2021-04-20 | 2021-11-26 | 西安热工研究院有限公司 | Closed coal shed structure device based on three-core round steel net rack and skeleton film |
-
2021
- 2021-04-20 CN CN202110424599.1A patent/CN113187296A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002057572A2 (en) * | 2001-01-22 | 2002-07-25 | Mara D.O.O. Tvornica Kuca I Hala | The flat-soffit large-span industrial building system |
| CN202810303U (en) * | 2012-08-30 | 2013-03-20 | 江西省电力设计院 | Double-span dry coal shed |
| CN203878882U (en) * | 2013-12-24 | 2014-10-15 | 北京华电润泽环保有限公司 | Dry coal shed |
| CN109220393A (en) * | 2018-09-27 | 2019-01-18 | 中冶东方工程技术有限公司 | It is a kind of to prevent the twin spans of accumulated snow or multispan arch greenhouse at gutter |
| CN214885972U (en) * | 2021-04-20 | 2021-11-26 | 西安热工研究院有限公司 | Closed coal shed structure device based on three-core round steel net rack and skeleton film |
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Application publication date: 20210730 |