CN214130417U

CN214130417U - Sand washing device for sand basin

Info

Publication number: CN214130417U
Application number: CN202022728312.8U
Authority: CN
Inventors: 邹浩; 黄盛铨; 巩绪威; 高东红; 殷杰
Original assignee: Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Current assignee: Shanghai Investigation Design and Research Institute Co Ltd SIDRI
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-09-07
Anticipated expiration: 2030-11-23

Abstract

The utility model provides a sand washing device of a sand basin, which is arranged in the sand basin, wherein both ends of the sand basin are respectively provided with an inlet and an outlet, and the bottom of the sand basin is provided with a funnel-shaped sand basin; the pipe body is sequentially provided with an upstream opening, a midstream opening and a downstream opening along the axial direction, wherein the upstream opening is close to the inlet, the downstream opening is close to the outlet, and an included angle is formed between any two openings; the end of the pipe body close to the upstream opening is sealed, and the end close to the downstream opening is provided with a sand outlet. The utility model discloses an useful part lies in, when having kept the efficient advantage of traditional box desilting pond desilting, can the limit diversion will be located the silt of desilting groove upper reaches to low reaches and wash totally, and it is minimum to wash the required water yield moreover, easy operation, and is minimum to the electricity generation benefit influence.

Description

Sand washing device for sand basin

Technical Field

The utility model relates to a hydraulic and hydroelectric engineering's desilting pond specifically relates to a desilting pond sand washing device.

Background

In the water conservancy and hydropower engineering, silt in rivers can cause abrasion damage to the water diversion structure and the hydroelectric generating set, even silts up the water diversion structure, influences the normal use of equipment, and then threatens the safety and stability of the whole engineering. At present, box-type desilting ponds are mostly adopted to intercept and precipitate silt.

The bottom of a traditional box-type sand basin is generally provided with an open sand washing tank, and the traditional box-type sand basin generally has two operation modes, namely, the outlet of the sand washing tank is closed at ordinary times, and a valve of the sand washing tank is opened for sand washing after silt is deposited to a certain height; secondly, water is led while sand washing is carried out. The former water flow mainly flows out from the lower part of the desilting tank, so that the sediment at the tail part can be effectively discharged, but the sediment at the upper part of the desilting tank cannot be completely discharged, and the sediment is often manually cleaned; the latter can not effectively control the flow of sand washing while guiding water and washing sand, and most river water flows away in vain, so that a great amount of water energy is lost, and the economic benefit is seriously influenced.

SUMMERY OF THE UTILITY MODEL

To the above defect, an object of the utility model is to provide a sand washing device of desilting basin that work efficiency is high, arrange husky effectual.

The utility model provides a sand washing device of a sand basin, which is arranged in the sand basin, wherein both ends of the sand basin are respectively provided with an inlet and an outlet, and the bottom of the sand basin is provided with a funnel-shaped sand basin; the pipe body is sequentially provided with an upstream opening, a midstream opening and a downstream opening along the axial direction, wherein the upstream opening is close to the inlet, the downstream opening is close to the outlet, and an included angle is formed between any two openings; one end, close to the upstream open pore, of the pipe body is sealed, and one end, close to the downstream open pore, of the pipe body is provided with a sand outlet.

Preferably, the tube body is connected with a rotary driving mechanism and driven by the rotary driving mechanism to rotate around the axial direction.

Preferably, an operating hole is provided in the vicinity of the outlet, and the rotary drive mechanism is disposed in the operating hole.

Preferably, the outer side of the pipe body is further sleeved with a fixedly installed steel lining, and the steel lining is provided with a groove facing the bottom of the sand settling groove.

Preferably, the angle between any two of the upstream, midstream and downstream apertures is 120 °.

Preferably, the number of the upstream, midstream and downstream apertures is two.

Preferably, a sand discharge hole is arranged near the outlet and communicated with the sand outlet.

Drawings

Fig. 1 is a plan layout view of the sand washing device of the sand basin of the utility model;

FIG. 2 is a cross-sectional view of the sand washing device of the sand basin of the present invention;

fig. 3 is a longitudinal section view of the sand washing device of the sand basin of the utility model.

Element number description:

1 desilting basin

11 inlet

12 outlet

13 sink sand groove

2 pipe body

21 upstream opening

22 midstream opening

23 downstream opening

24 sand outlet

3 Rotary drive mechanism

4 rows of sand holes

5 operating hole

6 silt

7 steel lining

Detailed Description

The following describes the present invention in further detail with reference to the accompanying drawings. These embodiments are provided only for illustrating the present invention and are not intended to limit the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1 and 3, the utility model provides a sand washing device for a sand basin, which is installed in the sand basin 1, wherein the two ends of the sand basin 1 are respectively provided with an inlet 11 and an outlet 12, and the bottom of the sand basin is provided with a funnel-shaped sand settling groove 13. During the flow of water from the inlet 11 to the outlet 12, the heavier silt will move downwards and settle in the silt basin 13. The utility model discloses a sand washing device is including installing body 2 in heavy husky groove 13 below, and heavy husky groove 13 bottom is uncovered, and body 2 can seal the bottom in heavy husky groove 13, also can rotate around self axial. The pipe body 2 is provided with an upstream opening 21, a midstream opening 22 and a downstream opening 23 in sequence along the axial direction, wherein the upstream opening 21 is close to the inlet 11, the downstream opening 23 is close to the outlet 12, and an included angle is formed between any two openings, namely any two openings are not positioned on the same straight line. The end of the tube 2 near the upstream opening 21 is sealed and the end near the downstream opening 23 is provided with a sand outlet 24.

In the specific implementation, the tube body 2 is connected with the rotary driving mechanism 3 and rotates around the axial direction under the driving of the rotary driving mechanism 3. The upstream opening 21, the midstream opening 22 and the downstream opening 23 are distributed along the circumferential direction of the pipe body 2, the included angle between any two openings is 120 degrees, the number of each opening is two, and the same opening is positioned on a straight line.

As shown in fig. 1 to 3, the use method of the sand washing device for the sand basin comprises the following steps:

s1, when the sediment 6 in the sediment tank 13 is deposited to a certain height, the rotary driving mechanism 3 is started, the rotary driving mechanism 3 drives the pipe body 2 to rotate, the upstream opening 21 is positioned right above and aligned with the bottom of the sediment flushing tank 13, and the sediment 6 positioned at the upstream of the sediment tank 13 can be discharged from the upstream opening 21;

s2, after the upstream sediment 6 is washed, starting the rotary driving mechanism 3 to drive the pipe body 2 to rotate 120 degrees again, so that the midstream opening 22 is positioned right above and aligned with the bottom of the sediment flushing tank 13, and discharging the sediment 6 positioned in the middle of the sediment settling tank 13;

s3, after the midstream sediment 6 is washed, starting the rotary driving mechanism 3 again to drive the pipe body 2 to rotate 120 degrees again, so that the downstream opening 23 is positioned right above and aligned with the bottom of the sediment flushing tank 13, and discharging the sediment 6 positioned at the downstream of the sediment settling tank 13;

s4, after the washing work of all the silt 6 is finished, the driving mechanism 3 is started, the pipe body 2 rotates by 60 degrees, all the holes in the pipe body 2 are enabled to avoid the sand washing groove 13, the bottom of the sand washing groove 13 is sealed, and a new round of running water sand settling operation can be started.

As shown in fig. 1 and 3, an operation hole 5 is provided near the outlet 12 of the settling tank 1, and the rotary drive mechanism 3 is provided in the operation hole 5. The operator can set the rotation and pause time of the rotary driving mechanism 3 according to the requirement, so that the device can run automatically at regular time. A sand discharge hole 4 is also arranged near the outlet 12, and the sand discharge hole 4 is communicated with a sand outlet 24, so that the discharged sediment can be conveniently treated.

As shown in fig. 2, the steel lining 7 is fixedly installed on the outer side of the pipe body 2 in a sleeved mode, and the steel lining 7 is provided with a groove facing the bottom of the sand settling groove 13, so that the sand 6 can penetrate through the groove and the open hole to enter the pipe body 2, and the pipe body 2 can be supported and protected.

The designer can arrange many sets at perpendicular rivers and in the same direction as the rivers direction according to the actual dimension of desilting pond 1 the utility model discloses a sand washing device designs the operation scheduling scheme according to actual conditions.

To sum up, the utility model discloses a arrange husky to the different regional sand discharge in proper order in heavy husky groove, it washes effectually, both can dash husky in succession, and the water yield of using at every turn is less relatively again, and when all trompils did not align with towards husky groove, the body can also play the valve effect, need not to install the valve in addition again. The device can set up rotation and dwell time according to actual conditions, realizes automatic operation, and easy operation saves engineering cost, also can confirm each part size and operation mode according to engineering actual conditions simultaneously. The device is not only suitable for small and medium-sized hydraulic and hydroelectric engineering, but also can be provided with two or more sets of systems along the length direction of the desilting basin so as to adapt to the requirements of large-sized hydraulic and hydroelectric engineering, and has strong adaptability.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims

1. A sand washing device of a sand settling tank is installed in the sand settling tank (1), an inlet (11) and an outlet (12) are respectively arranged at two ends of the sand settling tank (1), a funnel-shaped sand settling tank (13) is arranged at the bottom of the sand settling tank, and the sand washing device is characterized by comprising a pipe body (2) installed below the sand settling tank (13), the bottom of the sand settling tank (13) is open, and the pipe body (2) can seal the bottom of the sand settling tank (13) and can axially rotate around the pipe body; an upstream opening (21), a midstream opening (22) and a downstream opening (23) are sequentially arranged on the pipe body (2) along the axial direction, wherein the upstream opening (21) is close to the inlet (11), the downstream opening (23) is close to the outlet (12), and an included angle is formed between any two openings; one end, close to the upstream opening (21), of the pipe body (2) is sealed, and one end, close to the downstream opening (23), of the pipe body is provided with a sand outlet (24).

2. The sand washing device for the desilting basin according to claim 1, wherein the pipe body (2) is connected with a rotary driving mechanism (3) and driven by the rotary driving mechanism (3) to rotate around the axial direction.

3. A sand washing device according to claim 2, characterised in that an operating hole (5) is provided in the vicinity of the outlet (12), the rotary drive mechanism (3) being arranged in the operating hole (5).

4. The sand washing device for the sand basin according to claim 1, wherein a fixedly installed steel lining (7) is further sleeved on the outer side of the pipe body (2), and a groove facing the bottom of the sand settling tank (13) is formed in the steel lining (7).

5. A sand washing device according to claim 1, wherein the angle between any two of the upstream opening (21), the midstream opening (22) and the downstream opening (23) is 120 °.

6. A sand washing device according to claim 1, characterised in that the number of the upstream opening (21), the midstream opening (22) and the downstream opening (23) is two.

7. A sand washing device for a desilting basin according to claim 1, characterized in that a sand discharge hole (4) is provided near the outlet (12), and the sand discharge hole (4) is communicated with the sand outlet (24).