CN213038444U - Temporary device for screening sludge in river channel culvert - Google Patents

Abstract

The utility model provides a temporary device for screening sludge in a river channel hidden culvert, which comprises a brick structure, a wire screen, an anti-seepage structure and inclined struts, wherein the brick structure, the wire screen, the anti-seepage structure and the inclined struts are built on the bottom surface of the hidden culvert; the brick-built structure forms a peripheral supporting structure and forms a sludge screening pool, and a certain interval is formed between the screening pool and the side wall of the hidden culvert so that workers can pass through the screening pool; the steel wire screen is used as a screening screen of the screening device and fixed on a certain height of the peripheral support structure, and the screening tank is divided into an upper layer and a lower layer, wherein the upper layer is a retention space of the construction domestic garbage, and the lower layer is a sludge tank; arranging the anti-seepage structure outside the brick-laid structure; the periphery of the brick-built structure and the bottom surface of the hidden culvert are connected with inclined struts or throwing struts. The utility model discloses can realize autosegregation silt and building life, for the desilting car directly carries out the absorption of silt, the transportation is transferred and is provided the support.

Description

Temporary device for screening sludge in river channel culvert

Technical Field

The utility model relates to a can supply interim device of silt screening in river course secretly contains culvert is applicable to river course secretly contains desilting engineering silt and building domestic waste screening processing technology field.

Background

Along with the development of urbanization, the cleaning of sludge in the hidden culvert of the river channel becomes a difficult problem in the treatment of modern cities. Particularly, in recent years, the urbanization is rapidly developed, and industrial and domestic sewage flows into the culvert in a large quantity, so that the phenomenon that the river channel culvert is clogged by silt and some domestic garbage is more serious. Because the inside siltation of river course dark culvert has reduced the flood section, influences the flood capability in river course, has the risk that leads to urban waterlogging, seriously threatens urban drainage system's safety simultaneously, therefore the clearance work of river course dark culvert is imperative.

In the dredging engineering of the river channel hidden culvert, not only sludge is deposited, but also construction waste and household garbage exist. In the actual dredging process, due to the problems, if a dredging vehicle is directly adopted to suck sludge mixed with construction waste and household waste into the tank body by utilizing pumping equipment, a bottom sludge treatment plant generally does not directly receive the sludge, and the impurities need to be screened in the dredging process. Further sending the building and the household garbage to a garbage treatment plant, and sending the sludge to a bottom sludge treatment plant. Taking Shenzhen as an example, the problems are encountered in dredging projects such as Feng Pong river, Xinzhou river, Huanggang river, penholder mountain river section and the like.

The existing river channel dredging and screening device is generally a complete machine, the transportation, the installation and the disassembly are more complex, and the engineering investment is higher. For the dredging projects of the hidden culvert type, the whole equipment cannot be hoisted and conveyed into the culvert due to the size limitation of an operation surface or a working well, and the sludge and the construction domestic garbage are conveyed out of the hidden culvert and then are subjected to secondary screening by manual or mechanical equipment, so that the construction procedures are increased. The process needs a great deal of manpower, so that the development of a temporary device for screening the sludge in the hidden culvert of the river channel is necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the development can supply river course to secretly contain the interim device of interior silt screening of culvert, can realize autosegregation silt and building life, directly carries out the absorption of silt for the desilting car, transports and provides support. Therefore, the utility model adopts the following technical scheme:

a temporary device for screening sludge in a river channel culvert is characterized by comprising a brick structure, a steel wire screen, an anti-seepage structure and inclined struts, wherein the brick structure is built on the bottom surface of the culvert; the brick-built structure forms a peripheral supporting structure and forms a sludge screening pool, and a certain interval is formed between the screening pool and the side wall of the hidden culvert so that workers can pass through the screening pool; the steel wire screen is used as a screening screen of the screening device and fixed on a certain height of the peripheral support structure, and the screening tank is divided into an upper layer and a lower layer, wherein the upper layer is a retention space of the construction domestic garbage, and the lower layer is a sludge tank; arranging the anti-seepage structure outside the brick-laid structure; inclined struts or throwing struts are connected between the periphery of the brick-built structure and the bottom surface of the hidden culvert; and the wall surface of the peripheral supporting structure below the steel wire screen is provided with an opening for the introduction of a mud suction pipe of the ground dredging vehicle.

Further, the temporary device is arranged at the position of a box culvert opening hole close to the working face or the position of an existing inspection well.

Furthermore, the anti-seepage structure can adopt a PVC plastic film and can be adjusted according to the building materials on site, and the aim of the anti-seepage structure is to ensure that the structure does not generate sludge leakage.

Further, the volume of the screening pool at least meets 2-3 times of the bucket capacity of the excavator; a certain height difference exists between the height h1 of the screening pool and the height h2 of the steel wire screen, so that the volume of the screening pool above the steel wire screen is not less than 1 time of the bucket capacity of the excavator.

The utility model discloses well peripheral bearing structure can adopt brick structure, concrete structure or stone structure etc..

The utility model discloses well wire screen also can adopt the grid system of other materials, and the size of its mesh is according to the building domestic waste's of on-the-spot investigation size determination.

The utility model discloses can form silt screening plant frame and screening pond through brick structure, the steel wire screen cloth forms silt screening plant's screen cloth structure to supplementary prevent the seepage with PVC plastic film, set up the anti performance of sliding and antidumping that throws and prop (bracing) increase structure. During construction, sludge mixed with the construction domestic garbage is poured into the screening device manually or mechanically, wherein the sludge flows into the lower part under the action of gravity, and the construction domestic garbage is kept on the screen. Inside the ground desilting car suction pipe stretched into the device through the trompil point of trompil wall, continuous silt processing work that carries on. The domestic garbage of the construction is cleaned above the screen at regular intervals. Therefore, the sludge and the building domestic garbage can be rapidly screened, the operating environment of the dredging vehicle is provided, and conditions are created for screening and transporting various wastes to respective treatment plants in the dredging engineering. And simultaneously, the utility model discloses a screening plant simple structure, nimble changeable, the various operating condition in adaptable river course dark culvert scene has reduced the personnel and the goods and materials input of engineering, has saved the engineering investment, realizes that silt screening provides feasible scheme in the river course dark culvert.

Drawings

Fig. 1 is a top view of the device of the present invention;

FIG. 2 is a cross-sectional view A-A of FIG. 1;

fig. 3 is an elevation view of the open pore surface of the present invention.

Detailed Description

Reference is made to the accompanying drawings. The utility model provides a can supply river course secretly to contain interim device of interior silt screening comprises brick structure, wire screen, PVC plastic film and bracing. Utilize the utility model discloses a silt screening mode of device as follows:

(1) and constructing a temporary cofferdam at the construction section of the hidden culvert, and well performing pumping and drainage treatment work. Provides the working environment of the dredging project.

(2) The brick structure is transported into the culvert in a hoisting or manual transportation mode by a crane, a sludge centralized processing working surface is arranged at a box culvert opening position close to the working surface or the position of the existing inspection well, and a peripheral support structure 1 is formed and a sludge screening pond 10 is formed by building a brick structure on the bottom surface 100 of the hidden culvert. When the masonry is built, the construction requirements of up-down staggered joints, inside-outside lap joints and orderly construction are met. The length a1 of the screening pool 10 can be measured according to the dredging engineering amount of the construction section, the width B1 is smaller than the width B of a river channel hidden culvert, and a certain personnel passing width is reserved. The height h1 of the screening pool 10 is preferably selected according to the selected dredging mode, and if manual dredging is adopted, the height of the screening pool 10 is not more than 1 m; if mechanical dredging is adopted, the height of the screening tank 10 should not exceed the lifting height of the mechanical arm in normal work and be lower than the height H of the river channel hidden culvert. The volume of the screening pool 10 at least meets 2-3 times of bucket capacity V of the excavator.

(3) The steel wire screen 2 is arranged at a certain height h2 of the peripheral supporting structure 1 and is fixed by expansion bolts and the like to form a screen structure of the sludge screening device. In order to prevent the poured sludge from overflowing, a certain height difference delta h exists between the height h1 of the screening pool 10 and the height h2 of the steel wire screen, and the requirement that a1 b1 delta h is more than or equal to V is met (namely the volume of the screening pool 10 above the steel wire screen is not less than 1 time of the bucket capacity of the excavator)

(4) The wall surface of the peripheral supporting structure below the steel wire screen 2 is provided with an opening 3 for the ground dredging vehicle to carry out sludge cleaning operation on the sludge centralized processing operation surface through a sludge suction pipe. The position of the opening can be flexibly adjusted according to the position of the ground dredging vehicle. The height h3 of the opening is generally slightly lower than the height h2 of the steel wire screen, and can be adjusted according to actual conditions during field construction. The size of the opening is preferably that the opening can extend into a mud suction pipe of the dredging vehicle.

(5) After the brick structure construction is finished, a PVC plastic film 4 is laid outside the structure, and edge covering treatment is carried out. And sludge is prevented from leaking to the outside through the gaps of the brick structure.

(6) And throwing supports (inclined supports 5) are arranged around the peripheral supporting structure 1 of the brick-built structure to increase the overall anti-sliding and anti-overturning performance. The contact part of the inclined strut 5 and the peripheral supporting structure 1 is wrapped by soft materials in an auxiliary mode, and the PVC film is prevented from being damaged by the end head of the throwing strut or the inclined strut, so that the seepage-proofing effect is prevented from being influenced.

(7) During construction, sludge mixed with the construction domestic garbage is poured into the screening tank 10 manually or mechanically, wherein the sludge flows into the lower part under the action of gravity, and the construction domestic garbage is left on the screen 2. Therefore, the mud suction pipe of the ground dredging vehicle extends into the screening pool 10 through the opening 3 of the opening wall surface, and the mud treatment work is continuously carried out. The domestic garbage of the construction is cleaned above the screen at regular intervals. Therefore, the sludge and the building domestic garbage can be rapidly screened, the operating environment of the dredging vehicle is provided, and conditions are created for screening and transporting various wastes to respective treatment plants in the dredging engineering.

The utility model discloses the construction cost is low, and it is all convenient to construct and demolish, after this regional desilting work of dark culvert is accomplished, demolishs above-mentioned device.

The above only is the concrete embodiment of the utility model, the technical features of the utility model are not limited thereto, and any person skilled in the relevant field is in the field of the utility model, and the changes or modifications are all covered in the protection scope of the utility model.

Claims (5)

1. A temporary device for screening sludge in a river channel culvert is characterized by comprising a peripheral support structure, a steel wire screen, an anti-seepage structure and inclined struts, wherein the peripheral support structure is built on the bottom surface of the culvert; the peripheral supporting structure forms a sludge screening pool, and a gap is formed between the screening pool and the side wall of the hidden culvert for the passage of workers; the steel wire screen is used as a screening screen of the screening device and fixed on a certain height of the peripheral support structure, and the screening tank is divided into an upper layer and a lower layer, wherein the upper layer is a retention space of the construction domestic garbage, and the lower layer is a sludge tank; arranging the seepage-proofing structure outside the peripheral support structure; inclined struts or throwing struts are connected between the periphery of the peripheral support structure and the bottom surface of the hidden culvert; and the wall surface of the peripheral supporting structure below the steel wire screen is provided with an opening for the introduction of a mud suction pipe of the ground dredging vehicle.

2. The temporary device for screening sludge in the river channel culvert according to claim 1, wherein the temporary device is arranged at the position of a box culvert opening close to the working surface or the position of an existing inspection well.

3. The temporary device for screening sludge in the river channel culvert according to claim 1, wherein the seepage-proofing structure is a PVC plastic film.

4. The temporary device for screening sludge in the river channel culvert according to claim 1, wherein the volume of the screening pond at least meets 2-3 times of bucket capacity of the excavator; the height difference exists between the height h1 of the screening pool and the height h2 of the steel wire screen, so that the volume of the screening pool above the steel wire screen is not less than 1 time of the bucket capacity of the excavator.

5. The temporary device for screening sludge in the river channel culvert and the culvert as claimed in claim 1, wherein the peripheral supporting structure is of a brick structure, a concrete structure or a stone structure.

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