CN217000065U - Assembled flood drainage shaft for ash storage yard - Google Patents

Abstract

The utility model relates to the technical field of drainage treatment of a valley ash storage field, which is applied to a thermal power plant, in particular to an ash storage field assembled flood drainage shaft, which comprises a shaft seat arranged at the bottom and a shaft arranged on the shaft seat, wherein the shaft seat is provided with a drainage hole, and the drainage hole is connected with a drainage pipe; the shaft comprises a plurality of layers of splicing layers which are arranged from bottom to top step by step, and the adjacent two layers of splicing layers are fixedly connected through a concave-convex clamping structure. The utility model gradually seals the shaft to be buried by the tailings, can complete heightening construction only by installing the splicing layer, and has simple process. The flood drainage vertical shaft is adopted, water is fed from the top opening, the water inlet section is large, the defect of insufficient drainage capacity of the window type vertical shaft is overcome, the problems of complex construction and high difficulty in installing the baffle of the frame type vertical shaft are solved, the construction process is simple, the labor intensity is low, the construction efficiency is high, and the method can be widely popularized and applied in the technical field of ash storage yard engineering.

Description

Assembled flood drainage shaft for ash storage yard

Technical Field

The utility model relates to the technical field of drainage treatment of a valley ash storage yard, is applied to a thermal power plant, and particularly relates to an assembled flood drainage shaft of the ash storage yard.

Background

The flood discharging shaft of the ash yard is a common structure for discharging water of the ash yard, and is widely applied to a hydraulic ash yard and a dry ash yard of a thermal power plant. The cross section of the flood drainage shaft is usually circular or rectangular, and the circular cross section is mostly adopted in consideration of the stress performance of the structure. At present, flood drainage shafts in domestic ash yard engineering are generally divided into frame type and window type.

The frame-type drainage well has a wide inlet and a large water discharge amount, and is widely applied to tailing pond engineering with abundant rainwater. The drainage well is gradually plugged along with the lifting of the tailing surface in the reservoir, so that the plugging quality of the drainage well is very important, and potential safety hazards such as tailing leakage and damage of the drainage well need to be avoided. In a common situation, the vertical shaft is built at one time, the flow is discharged through the reserved hole, and as the stacking height of the tailings is continuously increased, the hole to be buried by the tailings needs to be gradually closed by adopting prefabricated plates. The frame type flood drainage vertical shaft is of a reinforced concrete structure, and more reserved orifices are reserved, so that the manufacturing process is complex, and the construction of erecting a formwork is complicated; meanwhile, an orifice cover plate needs to be prefabricated, and an orifice is not required to be manually plugged regularly. The arch bar installation is operated on water, each arc arch bar is about 145kg in weight and needs to be moved and completed manually, the installation mode is high in labor intensity and low in efficiency, and potential safety hazards exist. Thereby greatly increasing the construction cost and reducing the construction benefit

The window type drainage well system is built at one time, the structural integrity is good, and the operation and maintenance are simple and convenient. A certain number of water inlet holes with the diameter of 100 mm-200 mm are radially arranged at certain intervals along the height direction of the vertical shaft, and when rainwater collected in the ash yard reaches a certain height, the rainwater can be discharged through the water inlet, but the water discharge amount is small; when the ash surface rises to the water inlet, the prefabricated block is used for wrapping the geotextile for plugging, and the plugging is gradually pushed along with the rising of the ash surface. The flood drainage vertical shaft is widely applied, but the plugging is greatly influenced by operation and weather, and the plugging is more convenient when no water is accumulated in an ash field; when the ash yard runs all the time and more accumulated water exists in the ash yard, the ash yard is difficult to be plugged at any time, so that ash slag of the ash yard can be discharged out of the ash yard along with rainwater due to untimely plugging, and certain influence is brought to the surrounding environment of the ash yard. In addition, as the prefabricated block is wrapped with the geotextile for plugging, the plugging is not tight and ash leakage is possible, thereby influencing the environment.

Therefore, the existing flood drainage shaft structure in the ash yard still has a part to be improved urgently, the grey water entering the flood drainage shaft in the ash yard needs to be treated and discharged after reaching the standard, and the environment pollution caused by discharging substances such as tailing ash out of the shaft is avoided, so that the existing environment-friendly requirement is met. Therefore, a more reasonable technical scheme needs to be provided to solve the technical problems in the prior art.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art mentioned in the content, the utility model discloses an ash yard assembled flood drainage shaft, which can be assembled to improve the height of the shaft according to the requirement at any time by arranging the shaft shafts of the modular assembled shaft so as to deal with the situation that the height of tail mineral ash rises in a flood drainage period, improve the plugging effect on the tail mineral ash in flood and reduce the pollution to the environment.

In order to achieve the purpose, the utility model specifically adopts the technical scheme that:

an ash storage yard assembled flood drainage shaft comprises a shaft seat arranged at the bottom and a shaft arranged on the shaft seat, wherein a drain hole is formed in the shaft seat and is connected with a drain pipe; the shaft comprises a plurality of splicing layers which are arranged step by step from bottom to top, and the adjacent two splicing layers are fixedly connected through a concave-convex clamping structure.

According to the flood drainage vertical shaft, shaft structures can be accumulated step by step in the vertical direction, splicing can be performed simply and quickly, a shaft with a certain height can be reserved in the early stage in the flood drainage process, and clarified water is discharged from the upper side of the shaft after grey water in the shaft is clarified; when the thickness of the tailings accumulated in the shaft is increased and is close to the height of the shaft, the tailings can be quickly treated in time by increasing the depth of the shaft so as to keep the flood discharge capacity of the shaft.

Further, the splice layer structure of the present invention can be configured in various structures, which are not limited only, and is optimized and one of the possible options is shown: the adjacent two-layer concatenation layer include inner structure and outer structure, outer structure highly be higher than inner structure, or outer structure highly be less than inner structure, adjacent two-layer concatenation layer corresponds the vertical connection that the cooperation kept longitudinal direction respectively through outer structure and the inner structure that the height is misplaced. When the scheme is adopted, the directionality of longitudinal splicing can be kept between the upper and lower splicing layers under a staggered structure, so that the integrity and reliability of the whole shaft are kept.

Further, the splice layer structure can be constructed in a number of possible schemes, not limited solely, which are optimized and one of the possible options is: the splicing layer comprises inner arc surface prefabricated blocks and outer arc surface prefabricated blocks which are arranged at intervals in sequence.

And furthermore, the adjacent two splicing layers are twisted and staggered by a certain angle on the circumference. When adopting such scheme, the intrados prefabricated section and the extrados prefabricated section of last layer compress tightly the intrados prefabricated section and the extrados prefabricated section of next layer respectively, owing to twist reverse certain angle that staggers each other, the intrados prefabricated section of last layer can compress tightly the intrados prefabricated section and the extrados prefabricated section of next layer, and the extrados prefabricated section and the intrados prefabricated section of next layer can be compressed tightly to the extrados prefabricated section of last layer in the same reason.

Further, the intrados preform block may be provided in a variety of possible configurations, not exclusively limited thereto, optimized and one possible option: the inner arc surface precast block comprises an inner arc inner block which is used for paving and pasting to form a shaft inner layer structure, the inner side surface of the inner arc inner block is the shaft inner wall surface, an inner arc outer block which is used for paving and pasting to form a shaft outer layer structure is arranged on the outer side surface of the inner arc inner block, and the outer side surface of the inner arc outer block is the outer surface of the shaft.

Further, in order to maintain better longitudinal directionality of the shaft, the structure of the inner arc prefabricated block is further optimized, and the following feasible options are provided: the inner arc inner block and the inner arc outer block are the same in height, the upper end faces of the inner arc inner block and the inner arc outer block are kept parallel and staggered in height by a preset distance, and the upper end face of the inner arc inner block is higher than that of the inner arc outer block. When the scheme is adopted, a high-low step structure is formed between the whole inner arc outer block and the inner arc inner block of the inner arc surface precast block.

Furthermore, the thickness of the inner arc outer block and the thickness of the inner arc inner block are both half of the thickness of the shaft. In other schemes, the thicknesses of the inner arc outer block and the inner arc inner block can be set to be unequal, and the thicknesses of the inner arc outer block and the inner arc inner block respectively account for a certain proportion of the thickness of the shaft.

Further, extrados prefabricated section corresponds the relevance setting for the structure with intrados prefabricated section, and the two alternately sets up and splices each other, and its structure is each other for cooperating and forming complete concatenation layer structure, and this place is optimized and is lifted one of them feasible selection to extrados prefabricated section's structure: the outer arc surface precast block comprises an outer arc outer block which is used for paving and pasting an outer layer structure forming a shaft, the outer side surface of the outer arc outer block is the outer surface of the shaft, an outer arc inner block which is used for paving and pasting an inner layer structure forming the shaft is arranged on the inner side surface of the outer arc outer block, and the inner side surface of the outer arc inner block is the inner wall surface of the shaft. When the scheme is adopted, the outer arc outer block and the inner arc outer block are matched and spliced with each other to form a complete outer layer structure, and the outer arc inner block and the inner arc inner block are matched and spliced with each other to form a complete inner layer structure.

Further, also in order to maintain better longitudinal directionality of the shaft, the extrados precast block is continuously optimized and one of the feasible options is provided: the outer arc outer block and the outer arc inner block are the same in height, the upper end faces of the outer arc outer block and the outer arc inner block are kept horizontal and staggered in height at a preset distance, and the upper end face of the outer arc outer block is lower than the upper end face of the outer arc inner block. When the scheme is adopted, the outer arc outer block and the outer arc inner block form a high-low step structure, the high-low step structure formed by the outer arc outer block and the inner arc inner block is just matched with the inner arc outer block and the inner arc inner block in a corresponding mode, and after the splicing layer is formed in a splicing mode, a complete inner layer structure and an outer layer structure of the splicing layer are formed, so that the outer layer structure and the inner layer structure present a continuous high-low step structure.

Further, the thicknesses of the outer arc outer block and the outer arc inner block are optimally set, and one of the feasible options is as follows: the thickness of the outer arc outer block and the thickness of the outer arc inner block are both half of the thickness of the shaft. In other schemes, the thicknesses of the outer arc outer block and the outer arc inner block can also be unequal, and respectively account for a certain proportion of the thickness of the shaft; when so arranged, the thickness of the outer arc outer block should be equal to the thickness of the inner arc outer block, and the thickness of the outer arc inner block should be equal to the thickness of the inner arc inner block.

Compared with the prior art, the utility model has the beneficial effects that:

the prefabricated blocks are adopted to gradually seal the hole opening of the shaft body to be buried by the tailings, and when slag bodies are to be buried in the top opening of the shaft, later-stage heightening construction can be completed only by installation without secondary-stage reinforced concrete construction. The prefabricated blocks are light in weight and simple to install, hoisting machinery is not needed, and connection can be completed without professional engineering technicians; the flood drainage vertical shaft is adopted, water enters from the top opening, the water inlet section is large, the defect of insufficient drainage capacity of the window type vertical shaft is overcome, and meanwhile the problems that the frame type vertical shaft is complex in construction and large in difficulty in installing the baffle are solved. The utility model has simple construction process, reduces labor intensity, improves efficiency, is convenient for construction, and can be widely popularized and applied in the technical field of ash storage yard engineering.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic view of the overall structure of the flood discharge shaft.

FIG. 2 is a schematic diagram of a cross-sectional mosaic of a wellbore.

Fig. 3 is a schematic structural view of an intrados precast block.

FIG. 4 is a schematic structural view of the extrados precast block.

In the above drawings, each symbol has the following meaning: 1. a well base; 2. a drain hole; 3. a wellbore; 4. an intrados prefabricated section; 41. inner arc inner block; 42. an inner arc outer block; 5. an extrados precast block; 51. an outer arc inner block; 52. outer arc outer block.

Detailed Description

The utility model is further explained below with reference to the drawings and the specific embodiments.

It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely representative for purposes of describing example embodiments of the present invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.

Examples

To there being the not convenient phenomenon of shutoff lime-ash inadequately in current drainage shaft, this problem has been solved in the optimization of this embodiment.

Specifically, as shown in fig. 1 to 4, the embodiment discloses an ash yard assembled flood drainage shaft, which includes a shaft seat 1 arranged at the bottom and a shaft 3 arranged on the shaft seat 1, wherein the shaft seat 1 is provided with a drain hole 2, and the drain hole 2 is connected with a drain pipe; the shaft 3 comprises a plurality of splicing layers which are arranged from bottom to top step by step, and the adjacent two splicing layers are fixedly connected through a concave-convex clamping structure.

According to the flood drainage vertical shaft, the shaft 3 structures can be gradually accumulated in the vertical direction, splicing can be simply and quickly carried out, the shaft 3 with a certain height can be reserved in the early stage in the flood drainage process, and clarified water is discharged from the upper part of the shaft 3 after grey water in the shaft 3 is clarified; when the thickness of the tailings accumulated in the shaft 3 is increased and is close to the height of the shaft 3, the tailings can be quickly treated by increasing the depth of the shaft 3 in time so as to maintain the flood discharge capacity of the shaft.

Preferably, in this embodiment, the splicing layers of the shaft 3 are made of reinforced concrete materials, and the concave-convex structures between the splicing layers are formed by arranging templates for pouring. The height of each splicing layer is 400-800 mm.

The splicing layer structure in this embodiment can be set to various structures, which are not limited only, and this embodiment is optimized and adopts one of the feasible options: the adjacent two-layer concatenation layer include inner structure and outer structure, outer structure highly be higher than inner structure, or outer structure highly be less than inner structure, adjacent two-layer concatenation layer corresponds the vertical connection that the cooperation kept longitudinal direction respectively through outer structure and the inner structure that the height is misplaced. When the scheme is adopted, the directionality of longitudinal splicing can be kept between the upper and lower splicing layers under a staggered structure, so that the integrity and the reliability of the whole shaft 3 are kept.

Preferably, in this embodiment, the height of the inner layer structure is set to be higher than that of the outer layer structure, so that a step-shaped structure with the inner layer structure higher than that of the outer layer structure can be formed on each spliced layer of the wellbore 3. Specifically, in the present embodiment, the height of the inner layer structure is 100 to 200mm higher than that of the outer layer structure.

In other embodiments, the outer layer structure may be disposed at a higher elevation than the inner layer structure.

The splice layer structure can be constructed in a number of possible ways, which are not limited only, and the present embodiment is optimized and adopts one of the possible options: the splicing layer comprises inner arc surface prefabricated blocks 4 and outer arc surface prefabricated blocks 5 which are arranged at intervals in sequence.

Preferably, 4 box extrados prefabricated sections of interior cambered surface prefabricated section 5 all adopt the concrete prefabrication to make, and the surface is the smooth surface, and the gap width of concatenation face is 3 ~ 5mm, and the concatenation face carries out the filling connection through the binder, specifically can adopt waterproof anticorrosive binder, for example adopt plastic steel mud.

In order to ensure that the longitudinal stability of the two adjacent splicing layers is better, the two adjacent splicing layers are twisted and staggered by a certain angle on the circumference. When adopting such scheme, the intrados prefabricated section 4 and the extrados prefabricated section 5 of last layer compress tightly the intrados prefabricated section 4 and the extrados prefabricated section 5 of next layer respectively, owing to twist reverse certain angle that staggers each other, and last layer intrados prefabricated section 4 can compress tightly intrados prefabricated section 4 and extrados prefabricated section 5 of next layer, and the extrados prefabricated section 5 of last layer can compress tightly extrados prefabricated section 5 and intrados prefabricated section 4 of next layer with the extrados prefabricated section 5 of last layer in the same reason.

The intrados preform block 4 can be provided in a variety of possible configurations, which are not intended to be limiting, and the present embodiment is optimized and uses one of the possible options: the inner arc surface prefabricated block 4 comprises an inner arc inner block 41 used for paving and adhering an inner layer structure of the shaft 3, the inner side surface of the inner arc inner block 41 is the inner wall surface of the shaft 3, an inner arc outer block 42 used for paving and adhering an outer layer structure of the shaft 3 is arranged on the outer side surface of the inner arc inner block 41, and the outer side surface of the inner arc outer block 42 is the outer surface of the shaft 3.

Preferably, in this embodiment, the inner arc inner block 41 and the inner arc outer block 42 are both arc-shaped, and the radian of the inner side surface of the inner arc inner block 41 is the radian of the inner wall surface of the shaft 3, and the radian of the outer side surface of the inner arc outer block 42 is the radian of the outer side surface of the shaft 3.

In order to maintain a better longitudinal directionality of the shaft 3, the present embodiment further optimizes the structure of the inner arc prefabricated block by using one of the following feasible options: the inner arc inner block 41 and the inner arc outer block 42 have the same height, the upper end surfaces of the inner arc inner block 41 and the inner arc outer block 42 are parallel and staggered in a preset distance, and the upper end surface of the inner arc inner block 41 is higher than the upper end surface of the inner arc outer block 42. When the scheme is adopted, a high-low step structure is formed between the integral inner arc outer block 42 and the inner arc inner block 41 of the inner arc surface prefabricated block 4.

Preferably, in this embodiment, the thickness of the inner arc outer block 42 and the thickness of the inner arc inner block 41 are both half of the thickness of the wellbore 3. In other embodiments, the thicknesses of the inner arc outer block 42 and the inner arc inner block 41 are not equal, and the thicknesses respectively account for a certain proportion of the thickness of the well bore 3.

Outer cambered surface prefabricated section 5 corresponds the relevance setting for the structure with interior cambered surface prefabricated section 4, and the two sets up and splices each other alternately, and its structure is for mutually coordinating and forming complete concatenation layer structure, and the structure of this embodiment outer cambered surface prefabricated section 5 is optimized and is lifted one of them feasible selection: the extrados prefabricated block 5 comprises an extrados outer block 52 used for paving an outer layer structure of the shaft 3, the outer side face of the extrados outer block 52 is the outer surface of the shaft 3, an extrados inner block 51 used for paving an inner layer structure of the shaft 3 is arranged on the inner side face of the extrados outer block 52, and the inner side face of the extrados inner block 51 is the inner wall face of the shaft 3. When the scheme is adopted, the outer arc outer block 52 and the inner arc outer block 42 are matched and spliced with each other to form a complete outer layer structure, and the outer arc inner block 51 and the inner arc inner block 41 are matched and spliced with each other to form a complete inner layer structure.

Also in order to maintain a better longitudinal orientation of the wellbore 3, the extrados preform block 5 continues to be optimized and one of the possible options is: the outer arc outer block 52 and the outer arc inner block 51 have the same height, the upper end surfaces of the outer arc outer block 52 and the outer arc inner block 51 are kept horizontal and staggered in height by a preset distance, and the upper end surface of the outer arc outer block 52 is lower than the upper end surface of the outer arc inner block 51. When the scheme is adopted, a high-low step structure is formed between the outer arc outer block 52 and the outer arc inner block 51, the high-low step structure formed by the inner arc outer block 42 and the inner arc inner block 41 is just correspondingly matched, and after a splicing layer is formed by splicing, a complete inner layer structure and an outer layer structure of the splicing layer are formed, so that the outer layer structure and the inner layer structure present a continuous high-low step structure.

Preferably, the thickness of the outer arc outer block 52 and the outer arc inner block 51 is optimally set by adopting one feasible choice: the thickness of the outer arc outer block 52 and the thickness of the outer arc inner block 51 are both half of the thickness of the shaft 3. In other solutions, the thicknesses of the outer arc outer block 52 and the outer arc inner block 51 may also be unequal, respectively accounting for a certain proportion of the thickness of the wellbore 3; when so provided, the outer arc outer piece 52 should have a thickness equal to the thickness of the inner arc outer piece 42, and the outer arc inner piece 51 should have a thickness equal to the thickness of the inner arc inner piece 41.

The above embodiments are just exemplified in the present embodiment, but the present embodiment is not limited to the above alternative embodiments, and those skilled in the art can obtain other various embodiments by arbitrarily combining with each other according to the above embodiments, and any other various embodiments can be obtained by anyone in light of the present embodiment. The above detailed description should not be construed as limiting the scope of the present embodiments, which should be defined in the claims, and the description should be used for interpreting the claims.

Claims (10)

1. The utility model provides a store grey yard pin-connected panel flood discharge shaft which characterized in that: the device comprises a well seat (1) arranged at the bottom and a shaft (3) arranged on the well seat (1), wherein a drain hole (2) is formed in the well seat (1), and the drain hole (2) is connected with a drain pipe; the shaft (3) comprises a plurality of splicing layers which are arranged step by step from bottom to top, and the adjacent two splicing layers are fixedly connected through a concave-convex clamping structure.

2. The assembled flood drainage shaft for the ash storage yard according to claim 1, wherein: the adjacent two-layer concatenation layer include inner structure and outer structure, outer structure highly be higher than inner structure, or outer structure highly be less than inner structure, adjacent two-layer concatenation layer corresponds the vertical connection that the cooperation kept longitudinal direction respectively through outer structure and the inner structure that the height is misplaced.

3. The assembled flood drainage shaft for the ash storage yard as claimed in claim 1 or 2, wherein: the splicing layer comprises inner arc surface prefabricated blocks (4) and outer arc surface prefabricated blocks (5) which are arranged at intervals in sequence.

4. The assembled flood drainage shaft for the ash storage yard according to claim 3, wherein: the adjacent two splicing layers are twisted and staggered at a certain angle on the circumference.

5. The assembled flood drainage shaft for the ash storage yard according to claim 4, wherein: the inner arc surface precast block (4) comprises an inner arc inner block (41) which is used for paving and forming an inner layer structure of the shaft (3), the inner side surface of the inner arc inner block (41) is the inner wall surface of the shaft (3), an inner arc outer block (42) which is used for paving and forming an outer layer structure of the shaft (3) is arranged on the outer side surface of the inner arc inner block (41), and the outer side surface of the inner arc outer block (42) is the outer surface of the shaft (3).

6. The assembled flood drainage shaft for the ash storage yard as claimed in claim 5, wherein: the inner arc inner block (41) and the inner arc outer block (42) are the same in height, the upper end faces of the inner arc inner block (41) and the inner arc outer block (42) are kept parallel and staggered in height by a preset distance, and the upper end face of the inner arc inner block (41) is higher than the upper end face of the inner arc outer block (42).

7. The assembled flood drainage shaft for the ash storage yard according to claim 5, wherein: the thickness of the inner arc outer block (42) and the thickness of the inner arc inner block (41) are both half of the thickness of the shaft (3).

8. The assembled flood drainage shaft for the ash storage yard according to claim 4, wherein: the outer arc surface prefabricated block (5) comprises an outer arc outer block (52) used for paving an outer layer structure of the shaft (3), the outer side surface of the outer arc outer block (52) is the outer surface of the shaft (3), an outer arc inner block (51) used for paving an inner layer structure of the shaft (3) is arranged on the inner side surface of the outer arc outer block (52), and the inner side surface of the outer arc inner block (51) is the inner wall surface of the shaft (3).

9. The assembled flood drainage shaft for the ash storage yard according to claim 8, wherein: the outer arc outer block (52) and the outer arc inner block (51) are the same in height, the upper end faces of the outer arc outer block (52) and the outer arc inner block (51) are kept horizontal and staggered in height at a preset distance, and the upper end face of the outer arc outer block (52) is lower than the upper end face of the outer arc inner block (51).

10. The assembled flood drainage shaft for the ash storage yard according to claim 8, wherein: the thickness of the outer arc outer block (52) and the thickness of the outer arc inner block (51) are both half of the thickness of the shaft (3).

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