CN103572966B - The construction method of silo funnel liner - Google Patents
The construction method of silo funnel liner Download PDFInfo
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- CN103572966B CN103572966B CN201310596316.7A CN201310596316A CN103572966B CN 103572966 B CN103572966 B CN 103572966B CN 201310596316 A CN201310596316 A CN 201310596316A CN 103572966 B CN103572966 B CN 103572966B
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Abstract
The invention provides a kind of construction method of silo funnel liner, comprising: with cage of reinforcement funnel platform welded for supporting funnel liner template inside silo bulkhead; Funnel liner template is laid at cage of reinforcement higher slice by building scaffold; The funnel liner template of every layer is offered and builds hole of vibrating; Adopt concrete spreader in every layer of funnel liner template of laying, to carry out concreting by the hole of vibrating of building that the funnel liner template of every layer is offered, the concrete of building is vibrated, until complete concreting meanwhile; Completing after the concrete of building reaches and remove funnel liner template condition, by funnel liner form removable, and pasting glass cermaic plate completing the concrete surface of building, forming silo funnel liner.Utilize construction method provided by the invention, working procedure can be reduced, accelerate speed of application, ensure construction quality and cost-saving.
Description
Technical field
The present invention relates to silo funnel liner technical field of construction, more specifically, relate to a kind of construction method of silo funnel liner.
Background technology
In prior art, the method of transformation silo funnel liner is usually as follows: adopt air-entrained concrete building block to be piled into funnel shaped, outer cover situ Concrete Slabs again, then carries out concreting to situ Concrete Slabs, finally pastes the transformation that glass cermaic plate completes silo funnel liner.
There is following problem in said method:
1) because the silo funnel liner amount of building by laying bricks or stones is large, on-the-spot narrow field, deposits a large amount of building block difficulty.
2) during building block construction, because the platform on silo top is closed, can only open construction hole on the bulkhead of silo, utilize tower crane to coordinate and be transported to discharging platform, a dead lift is to operation side and build by laying bricks or stones.Because the duration of a project is tight, tower crane work capacity is limited, can not meet the requirement of operation, cause speed of application seriously to slow down even if do not stop 24 hours every days to construct, if accelerating construction progress just needs a large amount of manually carrying out to carry and build by laying bricks or stones, significantly construction cost can be increased.
3) large owing to building workload by laying bricks or stones, programming is tight, and when workman builds by laying bricks or stones, masonry mortar is not easily full, even occur that hacking is piled up, bearing capacity declines greatly, if bear the load of solid accumulation and pressure excessive, easily cause and cave in and occur production accident, cause hidden danger of quality for depositing raw material later.On the other hand, because masonry mortar when workman builds by laying bricks or stones is not easily full, concrete pavement can not be combined with building block well, Unified Global can not be formed, in Long-Time Service process, if the serious discontinuity in concrete pavement local, concrete pavement cracking can cause glass cermaic plate to come off, very easily cause feed opening to block and device damage, and then there is very large hidden danger of quality.
Therefore, a kind of method of construction silo funnel liner is newly needed to solve the problems referred to above.
Summary of the invention
In view of the above problems, the object of this invention is to provide a kind of construction method of silo funnel, with the problem that the building block occupied ground solving construction silo funnel liner is large, and manually build the hidden danger of quality problem of building block generation by laying bricks or stones.
The construction method of silo funnel liner provided by the invention, comprising:
With cage of reinforcement funnel platform welded for supporting funnel liner template inside silo bulkhead;
Funnel liner template is laid at cage of reinforcement higher slice by building scaffold;
The funnel liner template of every layer is arranged and builds hole of vibrating;
Adopt concrete spreader in every layer of funnel liner template of laying, to carry out concreting by the hole of vibrating of building that the funnel liner template of every layer is offered, the concrete of building is vibrated, until complete concreting meanwhile;
Completing after the concrete of building reaches and remove funnel liner template condition, by funnel liner form removable, and pasting glass cermaic plate completing the concrete surface of building, forming silo funnel liner.
In addition, preferred scheme is, concrete strength grade is C20, comprises cement, fines, coarse aggregate, flyash, breeze and Admixture; Wherein, fines is blast furnace granulated slag; Coarse aggregate is haydite.
In addition, preferred scheme is, concrete vibration time controlled at 6 ~ 10 seconds.
In addition, preferred scheme is, the surface of silo funnel liner is arc-shaped.
In addition, preferred scheme is, funnel liner template is bamboo slab rubber.
In addition, preferred scheme is, carry out in the process of concreting in the funnel liner template of laying every layer, the free height fallen is inclined in concreting should more than 1.5 meters, when concreting incline the free height that falls be greater than 1.5 meters time, concrete spreader sets up tumbling barrel.
In addition, preferred scheme is, every layer of funnel liner form height laid is 3 meters.
From technical scheme above, the construction method of silo funnel liner provided by the invention, can obtain following beneficial effect:
1) concreting material occupied ground is little.
2) utilize material distributing machine concreting, reduce operating personnel quantity, thus reduce the safety factor and cost that work high above the ground brings.
3) utilize concrete one-shot forming, shaping rear concrete body structure surface is smooth, and intensity is high, and glass cermaic plate cementability is good, can ensure construction quality, occurs that large area comes off to prevent the glass cermaic plate of concrete surface.
4) working procedure reduces, and speed of application accelerates.
In order to realize above-mentioned and relevant object, will describe in detail and the feature particularly pointed out in the claims after one or more aspect of the present invention comprises.Explanation below and accompanying drawing describe some illustrative aspects of the present invention in detail.But what these aspects indicated is only some modes that can use in the various modes of principle of the present invention.In addition, the present invention is intended to comprise all these aspects and their equivalent.
Accompanying drawing explanation
By reference to the content below in conjunction with the description of the drawings and claims, and understand more comprehensively along with to of the present invention, other object of the present invention and result will more be understood and should be readily appreciated that.In the accompanying drawings:
Fig. 1 is the flow chart of the construction method of silo funnel liner according to the embodiment of the present invention;
Fig. 2 is funnel liner template according to the embodiment of the present invention and cage of reinforcement position relationship schematic diagram;
Fig. 3 is according to the funnel liner template of the embodiment of the present invention and the location diagram of building hole of vibrating;
Fig. 4 is the structural representation of the funnel platform according to the embodiment of the present invention.
Reference numeral wherein comprises: cage of reinforcement 1, funnel liner template 2, steel plate 3, build hole 4 of vibrating, funnel platform 5.
Label identical in all of the figs indicates similar or corresponding feature or function.
Detailed description of the invention
In the following description, for purposes of illustration, in order to provide the complete understanding to one or more embodiment, many details have been set forth.But, clearly, also these embodiments can be realized when there is no these details.In other example, one or more embodiment for convenience of description, known structure and equipment illustrate in block form an
Below with reference to accompanying drawing, specific embodiments of the invention are described in detail.
Fig. 1 shows the flow process of the construction method of the silo funnel liner according to the embodiment of the present invention; As shown in Figure 1, the construction method of silo funnel liner provided by the invention comprises:
S100: with cage of reinforcement funnel platform welded for supporting funnel liner template inside silo bulkhead.
Because funnel liner will be convenient to the downslide such as powder in silo, block material, in order to prevent silo funnel liner material stock, cause waste, silo funnel liner is designed to arc-shaped.
Fig. 2 shows and illustrates according to the funnel liner template of the embodiment of the present invention and cage of reinforcement position relationship.
As shown in Figure 2, first, according to layout design shape, adopting total powerstation and level gauge axis, absolute altitude to be thrown accurately measures on silo bulkhead and funnel platform 5, then according to the line of ink marker welded reinforcement skeleton 1 tested, so that support funnel liner template 2, be conducive to the concrete of having built and silo bulkhead, funnel platform 5 to connect into entirety in addition.
Cage of reinforcement forms by wire drawing bar, first, will one end of wire drawing bar be welded on silo bulkhead and funnel platform 5, then, to pin laying funnel liner template 2 nut to the other end of wire drawing bar, regulate funnel liner template 2 to reach the designing requirement of drawing by regulating nut.
It should be noted that, because silo top is closed, so when constructing, constructed in the construction hole offered by silo bulkhead, that is, constructed by construction hole when manually carrying out welded reinforcement skeleton 1 and lay funnel liner template 2, it is also be constructed by this construction hole that concrete spreader carries out concreting.
Also it should be noted that, the silo funnel in the present invention is divided into two parts, and the latter half of silo funnel is one-body molded by funnel platform 5, and the present invention just constructs to the first half of silo funnel.
S110: lay funnel liner template at cage of reinforcement higher slice by building scaffold.
Because on cage of reinforcement, construction height is higher, so lay funnel liner template by setting up scaffold on cage of reinforcement.
Because funnel liner secondary looks for slope difficulty higher, so take layering to lay funnel liner template 2.
Particularly, funnel liner is the highest 12 meters, generally at about 10 meters, adopts 3 meters high one section of layerings to lay funnel liner template 2 when constructing.
S120: arrange in the funnel liner template of every layer and build hole of vibrating.
Fig. 3 shows according to the funnel liner template of the embodiment of the present invention and the position relationship of building hole of vibrating.
As shown in Figure 3, combine to make concrete compaction, eliminate the phenomenons such as concrete voids and pits, to improve its intensity, ensure the quality of concrete component, must vibrate to concrete when concreting, hole 4 of vibrating is built so offer in funnel liner template, on the other hand, construct to during top layer because funnel liner template 2 is in full closeding state, the hole 4 of vibrating of building can only offered by funnel liner template 2 is carried out concreting and vibrates to concrete.
It should be noted that, in the process of whole construction, only when constructing top layer, the space that funnel liner template 2 and silo bulkhead are formed is totally enclosed, when remainder layer is constructed, the top in the space that funnel liner template 2 and silo bulkhead are formed can be left flatly, and therefore, concreting is carried out in the space that concrete spreader is formed to funnel liner template 2 and silo bulkhead by this mouthful.
S130: adopt concrete spreader to carry out concreting by the hole of vibrating of building that the funnel liner template of every layer is offered in every layer of funnel liner template of laying, the concrete of building is vibrated, until complete concreting meanwhile.
The present invention adopts strength grade to be the raw material of blast furnace granulated slag ceramsite concrete light-weight concrete as funnel liner of C20, blast furnace granulated slag is the fines in concrete, blast furnace granulated slag color is white, uniform particles, intensity is better, lightweight (unit weight 1300kg/m3), and is easy to gather materials on the spot, the waste material that has been simultaneously steel mill process, plays the effect of energy-saving and environmental protection.Haydite is the coarse aggregate in concrete, also comprises flyash, breeze and Admixture, improve concrete workability in concrete, reduces cement consumption, prevents the heat of hydration from causing concrete cracking and haydite to float.
The comprehensive unit price of the method adopting the concrete comprehensive unit price of blast furnace granulated slag ceramsite concrete light-weight will adopt lower than prior art as calculated, therefore, it is possible to cost-saving.
Owing to adopting the method for layering to lay funnel liner template 2, so to being also that layering is carried out constructing during funnel liner template 2 concreting, that is: often laying one deck funnel liner template 2, carry out a concreting.
Should note in concreting process following some:
The first, placement layer by layer should keep consistency of thickness as far as possible, avoids the formation of slope, prevents haydite resolution separations from concrete.For guarantee is built closely knit, build thickness at every turn and be advisable with 300 ~ 500mm, the vibrating head of vibrated concrete adopts plug-in type vibrating rod, and is aided with artificial long wooden bat plate with making by oneself, is revised on surface, is separated to prevent haydite emersion in concrete.
The second, each concreting free height fallen of inclining more than 1.5m, when being greater than 1.5m, should should not increase tumbling barrel on concrete spreader.
Three, because the density of haydite is less than mortar, concrete vibration time should control at 6 ~ 10s, floats for principle to avoid haydite, fast inserting is pulled out slowly, and insert point evenly, a distance of shaking is contracted to effect of vibration radius 1 times, increase when vibrating and insert point, ensure to vibrate fully, concrete compaction.
Four, after concreting, there is floating haydite on the surface, first with self-control is long, wooden bat plate is clapped, after surface is closed flat, and then use bunk compacting, produce crack and floating haydite to prevent concrete surface.
Five, concreting takes staged stage by stage to construct along with formwork erection, when constructing last layer, carries out connecing slurry by constuction joint place dabbing and by the cement mortar of identical proportioning.Until concreting is complete reach form removal condition after, by form removable, if when finding that surperficial haydite is more, by haydite chipping, should repair with high grade mortar so that paste glass cermaic plate.
S140: completing after the concrete of building reaches and remove funnel liner template condition, by funnel liner form removable, and paste glass cermaic plate completing the concrete surface of building, form silo funnel liner.
Concrete maintenance to be strengthened by after funnel liner form removable, first concrete surface water seasoning, and then concrete surface covers layer of plastic film, topmost cover with wet straw screen or mat, concrete surface is kept to have adequate water, prevent or reduce because of surface moisture evaporation, produce crack, curing time is no less than 14 days.
A kind of preferred embodiment provided by the invention, at silo funnel thin mouth place, a mobilizable steel plate 3 is set, as shown in Figure 2, when the work of silo funnel, mobilizable steel plate 3 is opened, the raw material be stored in silo are allowed to flow out from thin mouth, close mobilizable steel plate 3 when silo funnel is idle, prevent the raw material be stored in silo from flowing out from thin mouth.Therefore, steel plate 3 can control raw material easily and flows out from thin mouth.
In the present invention, can be provided with multiple silo funnel in silo, Fig. 4 shows the structure of the funnel platform according to the embodiment of the present invention.As shown in Figure 4, for the situation being provided with multiple silo funnel in silo, then concreting triangularity on the funnel platform between silo funnel, then paste glass cermaic plate, prevent the raw material in the funnel platform storage silo between silo funnel.Silo in the present invention has six funnels, and in silo, the number of funnel can set as the case may be.
Can be found out by above-mentioned embodiment, the construction method of silo funnel liner provided by the invention, a large amount of labour cost used, cost of materials when adopting blast furnace granulated slag ceramsite concrete light-weight concrete can save material outward transport, Secondary Transport as the raw material of funnel liner; Further, blast furnace granulated slag ceramsite concrete light-weight concrete occupied ground little, draw materials conveniently; Utilize concrete spreader concreting, operating personnel's quantity can be reduced, decrease safety factor and unstability that work high above the ground brings, can also accelerating construction progress fast; Body structure surface after blast furnace granulated slag ceramsite concrete light-weight concrete formation is smooth, and intensity is high, and glass cermaic plate cementability is good, can effectively prevent the glass cermaic plate of concrete surface from occurring that large area comes off.
The construction method according to silo funnel liner of the present invention is described in an illustrative manner above with reference to accompanying drawing.But, it will be appreciated by those skilled in the art that the construction method of the silo funnel liner that the invention described above is proposed, various improvement can also be made on the basis not departing from content of the present invention.Therefore, protection scope of the present invention should be determined by the content of appending claims.
Claims (8)
1. a construction method for silo funnel liner, comprising:
With cage of reinforcement funnel platform welded for supporting funnel liner template inside silo bulkhead;
Funnel liner template is laid at described cage of reinforcement higher slice by building scaffold;
The funnel liner template of every layer is arranged and builds hole of vibrating;
Adopt concrete spreader in every layer of funnel liner template of laying, to carry out concreting by the hole of vibrating of building that the funnel liner template of every layer is offered, the concrete of building is vibrated, until complete concreting meanwhile;
Completing after the concrete of building reaches and remove funnel liner template condition, by funnel liner form removable, and pasting glass cermaic plate completing the concrete surface of building, forming silo funnel liner.
2. the construction method of silo funnel liner as claimed in claim 1, wherein,
Described concrete strength grade is C20, comprises cement, fines, coarse aggregate, flyash, breeze and Admixture.
3. the construction method of silo funnel liner as claimed in claim 2, wherein,
Described fines is blast furnace granulated slag;
Described coarse aggregate is haydite.
4. the construction method of silo funnel liner as claimed in claim 2, wherein, the time of vibrating to described concrete of building is 6 ~ 10 seconds.
5. the construction method of silo funnel liner as claimed in claim 1, wherein, the surface of described silo funnel liner is arc-shaped.
6. the construction method of silo funnel liner as claimed in claim 1, wherein, described funnel liner template is bamboo slab rubber.
7. the construction method of silo funnel liner as claimed in claim 1, wherein, carry out in the process of concreting in the funnel liner template of laying every layer, the concreting free height fallen of inclining is no more than 1.5 meters, when concreting incline the free height that falls be greater than 1.5 meters time, concrete spreader sets up tumbling barrel.
8. the construction method of silo funnel liner as claimed in claim 1, wherein, every layer of funnel liner form height laid is 3 meters.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971281A (en) * | 2016-05-24 | 2016-09-28 | 中交第航务工程局有限公司 | Construction method of conical concrete roof on top of silo |
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| CN105781159B (en) * | 2016-03-10 | 2018-04-27 | 中国五冶集团有限公司 | A kind of power plant main power house armored concrete coal hopper construction technology |
| CN107035147B (en) * | 2017-04-28 | 2019-12-10 | 中国一冶集团有限公司 | Conical hopper concrete pouring construction method |
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| JPH08135243A (en) * | 1994-11-11 | 1996-05-28 | Mitsui Constr Co Ltd | Construction of silo |
| KR20110005491U (en) * | 2009-11-26 | 2011-06-01 | 주식회사 에이치케이파워텍 | Hopper type silo using precast concrete panel and constructing method of hopper type silo using the same |
| CN102337790A (en) * | 2011-07-26 | 2012-02-01 | 中国神华能源股份有限公司 | Construction method of silo |
| CN102359300A (en) * | 2011-07-26 | 2012-02-22 | 中国神华能源股份有限公司 | Cylindrical silo and silo bottom structure thereof |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH08135243A (en) * | 1994-11-11 | 1996-05-28 | Mitsui Constr Co Ltd | Construction of silo |
| KR20110005491U (en) * | 2009-11-26 | 2011-06-01 | 주식회사 에이치케이파워텍 | Hopper type silo using precast concrete panel and constructing method of hopper type silo using the same |
| CN102337790A (en) * | 2011-07-26 | 2012-02-01 | 中国神华能源股份有限公司 | Construction method of silo |
| CN102359300A (en) * | 2011-07-26 | 2012-02-22 | 中国神华能源股份有限公司 | Cylindrical silo and silo bottom structure thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105971281A (en) * | 2016-05-24 | 2016-09-28 | 中交第航务工程局有限公司 | Construction method of conical concrete roof on top of silo |
| CN105971281B (en) * | 2016-05-24 | 2019-06-04 | 中交第一航务工程局有限公司 | Silo top concrete taper roof construction method |
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