CN103572966A - Construction method for silo funnel liner - Google Patents
Construction method for silo funnel liner Download PDFInfo
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- CN103572966A CN103572966A CN201310596316.7A CN201310596316A CN103572966A CN 103572966 A CN103572966 A CN 103572966A CN 201310596316 A CN201310596316 A CN 201310596316A CN 103572966 A CN103572966 A CN 103572966A
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Abstract
The invention provides a construction method for a silo funnel liner. The construction method comprises the following steps: a reinforcement cage for supporting funnel liner templates is welded on the inner side of the wall of a silo and on a funnel platform; the funnel liner templates are laid on the reinforcement cage by layers through building a scaffold; casting damping holes are formed in each layer of funnel liner templates; concrete is cast in each layer of laid funnel liner templates by adopting a concrete spreader through the casting damping holes formed in each layer of the funnel liner templates, and at the same time, the cast concrete is damped until the casting of the concrete is finished; after the cast concrete achieves the conditions of dismounting the funnel liner templates, the funnel liner templates are dismounted, and glass-ceramic plates are bonded on the surface of the cast concrete to form the silo funnel liner. Through the adoption of the construction method provided by the invention, construction procedures can be reduced, construction speed is quickened, construction quality is guaranteed and costs are saved.
Description
Technical field
The present invention relates to silo funnel liner technical field of construction, more specifically, relate to a kind of job practices of silo funnel liner.
Background technology
In prior art, the method of transformation silo funnel liner is conventionally as follows: adopt air-entrained concrete building block to be piled into funnel shaped, outer cover situ Concrete Slabs, then carries out concreting to situ Concrete Slabs again, 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 difficulties.
2) building block when construction, because the platform on silo top seals, can only on the bulkhead of silo, open construction hole, 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, even if do not stop the requirement that construction can not meet operation 24 hours every days, causes speed of application seriously to slow down, if accelerating construction progress, with regard to needing a large amount of manually carrying and build by laying bricks or stones, can significantly increase construction cost.
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 difficult for full, even occur that hacking piles up, bearing capacity declines greatly, if it is excessive to bear load and the pressure of solid accumulation, easily cause and cave in and occur production accident causing hidden danger of quality for deposit raw material later.On the other hand, while building by laying bricks or stones due to workman, masonry mortar is difficult for full, concrete pavement can not be combined with building block well, can not form Unified Global, in long-term use procedure, if the local serious discontinuity of concrete pavement, concrete pavement cracking can cause glass cermaic plate to come off, very easily cause feed opening to stop up and device damage, and then have very large hidden danger of quality.
Therefore, need a kind of method of new construction silo funnel liner 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 job practices of silo funnel, to solve the large problem of building block occupied ground of construction silo funnel liner, and manually build the hidden danger of quality problem that building block produces by laying bricks or stones.
The job practices of silo funnel liner provided by the invention, comprising:
On silo bulkhead inner side and funnel platform, welding is for supporting the cage of reinforcement of funnel liner template;
By building scaffold, at cage of reinforcement higher slice, lay funnel liner template;
In the funnel liner template of every layer, arrange and build the hole of vibrating;
Adopt concrete spreader in the funnel liner template of every layer of laying, to carry out concreting by the hole of vibrating of building of offering in the funnel liner template of every layer,, the concrete of building is vibrated, until complete concreting meanwhile;
Reach and remove after funnel liner template condition completing the concrete of building, by funnel liner form removable, and paste glass cermaic plate completing the concrete surface of building, form silo funnel liner.
In addition, preferred scheme is that 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 that concrete vibration time is controlled at 6～10 seconds.
In addition, preferred scheme is that the surface of silo funnel liner is circular-arc.
In addition, preferred scheme is that funnel liner template is bamboo offset plate.
In addition, preferably scheme is, in the funnel liner template to every layer of laying, carries out in the process of concreting, and the free height falling is inclined in concreting should be over 1.5 meters, when concreting, incline the free height that falls while being greater than 1.5 meters, on concrete spreader, set up tumbling barrel.
In addition, preferred scheme is that the funnel liner template height of every layer of laying is 3 meters.
From technical scheme above, the job practices 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's quantity, thereby reduce safety factor and cost that work high above the ground brings.
3) utilize concrete one-shot forming, after moulding, concrete body structure surface is smooth, and intensity is high, and glass cermaic plate cementability is good, can guarantee construction quality, to prevent that the glass cermaic plate of concrete surface from occurring that large area comes off.
4) working procedure reduces, and speed of application accelerates.
In order to realize above-mentioned and relevant object, one or more aspects of the present invention comprise below by the feature that describes in detail and particularly point out in the claims.Explanation below and accompanying drawing describe some illustrative aspects of the present invention in detail.Yet, the indication of these aspects be only some modes that can use in the variety of way 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 along with understanding more comprehensively 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 according to the flow chart of the job practices of the silo funnel liner of the embodiment of the present invention;
Fig. 2 is according to the funnel liner template of 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 the hole of vibrating;
Fig. 4 is according to the structural representation of the funnel platform of the embodiment of the present invention.
Reference numeral wherein comprises: cage of reinforcement 1, funnel liner template 2, steel plate 3, build the hole 4 of vibrating, funnel platform 5, silo bulkhead 6.
In institute's drawings attached, identical label is indicated similar or corresponding feature or function.
The specific embodiment
In the following description, for purposes of illustration, for the complete understanding to one or more embodiment is provided, many details have been set forth.Yet, clearly, also can in the situation that there is no these details, realize these embodiment.In other example, one or more embodiment for convenience of description, known structure and equipment illustrate with the form of block diagram
Below with reference to accompanying drawing, specific embodiments of the invention are described in detail.
Fig. 1 shows according to the flow process of the job practices of the silo funnel liner of the embodiment of the present invention; As shown in Figure 1, the job practices of silo funnel liner provided by the invention comprises:
S100: welding is for supporting the cage of reinforcement of funnel liner template on silo bulkhead inner side and funnel platform.
Due to funnel liner, to be convenient to the downslides such as powder in silo, piece material, in order to prevent silo funnel liner material stock, cause waste, silo funnel liner is designed to circular-arc.
Fig. 2 shows according to the funnel liner template of the embodiment of the present invention and the signal of cage of reinforcement position relationship.
As shown in Figure 2, first, according to layout design shape, adopt total powerstation and level gauge that axis, the accurate throwing of absolute altitude are measured on silo bulkhead 6 and funnel platform 5, then according to the line of ink marker welded reinforcement skeleton 1 of having tested, so that support funnel liner template 2, be conducive in addition the concrete of having built and silo bulkhead 6, funnel platform 5 to connect into integral body.
Cage of reinforcement is by wire drawing bar is formed, first, will one end of wire drawing bar be welded on silo bulkhead 6 and funnel platform 5, then, at the other end to wire drawing bar, lay funnel liner template 2 use nuts and pin, thereby regulate funnel liner template 2 to reach the designing requirement of drawing by regulating nut.
It should be noted that, due to silo, Cang Ding seals, so when construction, construct in the construction hole of offering by silo bulkhead, that is to say, when manually carrying out welded reinforcement skeleton 1 and laying funnel liner template 2, by construction hole, construct, it is to be also to construct 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 construction height on cage of reinforcement 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 10 meters of left and right, when construction, adopts 3 meters high one section of layerings to lay funnel liner template 2.
S120: arrange and build the hole of vibrating in the funnel liner template of every layer.
Fig. 3 shows according to the funnel liner template of the embodiment of the present invention and the position relationship of building the hole of vibrating.
As shown in Figure 3, in order to make concrete compaction combination, eliminate the phenomenons such as concrete voids and pits, to improve its intensity, guarantee the quality of concrete component, when concreting, must vibrate to concrete, so offer, build the hole 4 of vibrating in funnel liner template, on the other hand, while constructing to top layer, because funnel liner template 2 is in full closeding state, the hole 4 of vibrating of building that can only offer by funnel liner template 2 is carried out concreting and concrete is vibrated.
It should be noted that, in the process of whole construction, only when construction top layer, funnel liner template 2 is totally enclosed with the space that silo bulkhead forms, when remainder layer is constructed, funnel liner template 2 can leave flatly with the top in the space that silo bulkhead 6 forms, and therefore, concrete spreader carries out concreting by this mouthful to funnel liner template 2 and the space that silo bulkhead 6 forms.
S130: adopt concrete spreader to carry out concreting by the hole of vibrating of building of offering in the funnel liner template of every layer in the funnel liner template of every layer of laying,, the concrete of building is vibrated, until complete concreting meanwhile.
It is that the blast furnace granulated slag ceramsite concrete light-weight concrete of C20 is as the raw material of funnel liner that the present invention adopts strength grade, blast furnace granulated slag is the fines in concrete, blast furnace granulated slag color is white, uniform particles, intensity is better, and lightweight (unit weight 1300kg/m3), and be easy to gather materials on the spot, for steel mill, process waste material simultaneously, played the effect of energy-saving and environmental protection.Haydite is the coarse aggregate in concrete, also comprises and flyash, breeze and Admixture have improved concrete workability in concrete, reduces cement consumption, prevents that the heat of hydration from causing concrete cracking and haydite floating.
Adopt as calculated the comprehensive unit price of the method that the concrete comprehensive unit price of blast furnace granulated slag ceramsite concrete light-weight will adopt lower than prior art, therefore can be cost-saving.
Owing to adopting the method for layering to lay funnel liner template 2, so be also that layering is constructed when to funnel liner template 2 concreting, that is: every laying one deck funnel liner template 2, carries out a concreting.
Below should noting in concreting process some:
The first, placement layer by layer should keep consistency of thickness as far as possible, avoids forming slope, prevents haydite resolution separations from concrete.Closely knit for guaranteeing to build, to build thickness at every turn and be advisable with 300～500mm, the vibrating head that vibrated concrete is used adopts plug-in type vibrating rod, and is aided with artificial longly wooden bat plate with self-control, surface is revised, to prevent that in concrete, haydite emersion is separated.
The second, the each concreting free height falling of inclining should not surpass 1.5m, when being greater than 1.5m, should on concrete spreader, increase tumbling barrel.
Three, the density due to haydite is less than mortar, and concrete vibration time should be controlled at 6～10s, take that to avoid haydite floating be principle, fast inserting pulled out slowly, inserts point evenly, and a distance of shaking is contracted to 1 times of effect of vibration radius, while vibrating, increase and insert point, guarantee to vibrate fully, concrete compaction.
Four, after concreting, on surface, there is floating haydite, first with self-control is long, wooden bat plate is clapped, after surface is closed flat, and then use bunk compacting, to prevent that concrete surface from producing crack and floating haydite.
Five, concreting is along with formwork erection is taked staged stage by stage and constructed, when construction last layer, by constuction joint place dabbing and connect slurry by the cement mortar of identical proportioning.Reach after form removal condition until concreting is complete, by form removable, if while finding that surperficial haydite is more, haydite chipping should be repaired with high grade mortar, so that paste glass cermaic plate.
S140: reach and remove after funnel liner template condition completing the concrete of building, by funnel liner form removable, and paste glass cermaic plate completing the concrete surface of building, form silo funnel liner.
To after funnel liner form removable, to strengthen concrete maintenance, first concrete surface water seasoning, and then concrete surface covers layer of plastic film, topmost with wet straw screen or mat, cover, keep concrete surface 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 mouthful of place arranges a mobilizable steel plate 3, as shown in Figure 2, in the work of silo funnel, mobilizable steel plate 3 is opened, allow the raw material that are stored in silo flow out from thin mouthful, when silo funnel is idle, close mobilizable steel plate 3, the raw material that prevent from being stored in silo flow out from thin mouthful.Therefore, steel plate 3 can be controlled raw material easily from thin mouthful of outflow.
In the present invention, can be provided with a plurality of silo funnels in silo, Fig. 4 shows according to the structure of the funnel platform of the embodiment of the present invention.As shown in Figure 4, for the situation that is provided with a plurality of silo funnels in silo, 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 be set as the case may be.
By above-mentioned embodiment, can find out, the job practices of silo funnel liner provided by the invention, a large amount of labour cost used, cost of materials while adopting blast furnace granulated slag ceramsite concrete light-weight concrete can save material outward transport, Secondary Transport as the raw material of funnel liner; And blast furnace granulated slag ceramsite concrete light-weight concrete occupied ground is little, the convenience of drawing materials; Utilize concrete spreader concreting, can reduce operating personnel's quantity, reduced 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 that the glass cermaic plate of concrete surface from occurring that large area comes off.
Above with reference to accompanying drawing, in the mode of example, described according to the job practices of silo funnel liner of the present invention.But, it will be appreciated by those skilled in the art that the job practices of the silo funnel liner proposing for the invention described above, can also on the basis that does not depart from content of the present invention, make various improvement.Therefore, protection scope of the present invention should be determined by the content of appending claims.
Claims (8)
1. a job practices for silo funnel liner, comprising:
On silo bulkhead inner side and funnel platform, welding is for supporting the cage of reinforcement of funnel liner template;
By building scaffold, at described cage of reinforcement higher slice, lay funnel liner template;
In the funnel liner template of every layer, arrange and build the hole of vibrating;
Adopt concrete spreader in the funnel liner template of every layer of laying, to carry out concreting by the hole of vibrating of building of offering in the funnel liner template of every layer,, the concrete of building is vibrated, until complete concreting meanwhile;
Reach and remove after funnel liner template condition completing the concrete of building, by funnel liner form removable, and paste glass cermaic plate completing the concrete surface of building, form silo funnel liner.
2. the job practices 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 job practices of silo funnel liner as claimed in claim 2, wherein,
Described fines is blast furnace granulated slag;
Described coarse aggregate is haydite.
4. the job practices of silo funnel liner as claimed in claim 2, wherein, the time that described concrete of building is vibrated is 6～10 seconds.
5. the job practices of silo funnel liner as claimed in claim 1, wherein, the surface of described silo funnel liner is circular-arc.
6. the job practices of silo funnel liner as claimed in claim 1, wherein, described funnel liner template is bamboo offset plate.
7. the job practices of silo funnel liner as claimed in claim 1, wherein, in the funnel liner template to every layer of laying, carry out in the process of concreting, the concreting free height falling of inclining is no more than 1.5 meters, when concreting, incline the free height that falls while being greater than 1.5 meters, on concrete spreader, set up tumbling barrel.
8. the job practices of silo funnel liner as claimed in claim 1, wherein, the funnel liner template height of every layer of laying is 3 meters.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781159A (en) * | 2016-03-10 | 2016-07-20 | 中国五冶集团有限公司 | Construction process for reinforced concrete coal hopper of power plant main building |
| 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 |
| CN107035147A (en) * | 2017-04-28 | 2017-08-11 | 中国冶集团有限公司 | A kind of cone bucket concrete pouring construction method |
| CN109441190A (en) * | 2018-12-19 | 2019-03-08 | 中建局集团第三建筑有限公司 | A kind of orlop heap slope structure and its construction method |
| CN113047426A (en) * | 2021-05-18 | 2021-06-29 | 中国十九冶集团有限公司 | Method for setting steel bars of large concrete funnel opening |
| CN113882665A (en) * | 2021-10-21 | 2022-01-04 | 防城港中一重工有限公司 | Shallow circular bin bottom plate cone hopper concrete slope piling and formwork erecting method |
| CN114482552A (en) * | 2022-02-17 | 2022-05-13 | 成都建筑材料工业设计研究院有限公司 | Concrete surface wear-resistant layer construction method for solid material storage and conveying structure |
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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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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105781159A (en) * | 2016-03-10 | 2016-07-20 | 中国五冶集团有限公司 | Construction process for reinforced concrete coal hopper of power plant main building |
| 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 |
| 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 |
| CN107035147A (en) * | 2017-04-28 | 2017-08-11 | 中国冶集团有限公司 | A kind of cone bucket concrete pouring construction method |
| CN109441190A (en) * | 2018-12-19 | 2019-03-08 | 中建局集团第三建筑有限公司 | A kind of orlop heap slope structure and its construction method |
| CN109441190B (en) * | 2018-12-19 | 2024-01-23 | 中建一局集团第三建筑有限公司 | Warehouse bottom slope stacking structure and construction method thereof |
| CN113047426A (en) * | 2021-05-18 | 2021-06-29 | 中国十九冶集团有限公司 | Method for setting steel bars of large concrete funnel opening |
| CN113047426B (en) * | 2021-05-18 | 2022-08-09 | 中国十九冶集团有限公司 | Steel bar setting method for large concrete funnel opening |
| CN113882665A (en) * | 2021-10-21 | 2022-01-04 | 防城港中一重工有限公司 | Shallow circular bin bottom plate cone hopper concrete slope piling and formwork erecting method |
| CN114482552A (en) * | 2022-02-17 | 2022-05-13 | 成都建筑材料工业设计研究院有限公司 | Concrete surface wear-resistant layer construction method for solid material storage and conveying structure |
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