CN211004626U

CN211004626U - Sludge-accumulation-preventing sludge-discharging water tank

Info

Publication number: CN211004626U
Application number: CN201921706844.2U
Authority: CN
Inventors: 杨志峰
Original assignee: Shanghai Municipal Engineering Design Insitute Group Co Ltd
Current assignee: Shanghai Municipal Engineering Design Insitute Group Co Ltd
Priority date: 2019-10-12
Filing date: 2019-10-12
Publication date: 2020-07-14
Anticipated expiration: 2029-10-12

Abstract

The utility model relates to a prevent long-pending mud drainage pond of silt, the mud drainage pond includes a plurality of parallel arrangement's water conservancy diversion pond, every water conservancy diversion pond comprises the square little cell body that a plurality of set gradually along the rivers direction, every square little cell body is equipped with water inlet and delivery port respectively, advance, the department mouth of a river sets up respectively on a set of diagonal angle of square little cell body, advance, connect through the runner between the delivery port, another group of the little cell body of every square is equipped with a set of agitator to the angular position, be equipped with the partition wall between the adjacent square little cell body, set up on the partition wall with the runner complex portal of overflowing. When in use, the utility model forms circulation of sludge water in a single tank body by arranging the round chamfer angle and the plug flow type stirrer, thereby avoiding sludge deposition; the slope and the flow channel are arranged in the pool body, so that the sludge discharge water automatically forms plug flow, and the deposited sludge is automatically pushed into the pump pit of the submersible pump.

Description

Sludge-accumulation-preventing sludge-discharging water tank

Technical Field

The utility model belongs to the technical field of the technique of mud discharging pool and specifically relates to a prevent becoming silted up mud discharging pool, especially relate to a honeycomb type runner formula prevents becoming silted up mud discharging pool.

Background

At present, in most water purification plants, especially large-scale water purification plants, the storage and regulation of sludge water are always difficult, and the main defects are shown in the following aspects:

(1) because the water plant has large scale and large sludge discharge amount, particularly for water purification plants using river water as a water source, the sludge discharge amount generally accounts for 1% -3% of daily treated water amount, and when the turbidity in a flood season is high, the sludge discharge amount is larger, and the sludge discharge amount of part of water plants in mountain areas even reaches 30% of the daily treated water amount.

In the prior design, a large-volume sludge discharge water regulating tank is usually rectangular, and when the size is larger, on one hand, the tank body is often provided with more walls, columns and the like, so that dead corners with poor fluidity are easily generated in the tank body, and sludge and silt are easily deposited in the tank; on the other hand, due to the limited range of action of the plug-flow agitator, outside of its range of action, the discharge of muddy water is nearly static, often resulting in sedimentation. Due to the limitation of the structure of the tank body, the sludge discharge water is difficult to flow in the large-size tank body, and during cleaning of the sludge discharge water, the sludge is often deposited outside the flow pushing range of the stirrer.

(2) The rectangular tank body with a large section is adopted, and no flow guide measure is adopted in the middle, so that the plug flow speed of muddy water from an inlet to an outlet is very low, and sludge is easy to precipitate in the tank.

(3) The daily operation and maintenance workload is large

When silt is piled up in the pond, not only influence the impression, reduced the effective volume in mud discharging pond, bury agitator and immersible pump when serious and cause equipment wearing and tearing or trouble, therefore need often wash to increase water plant fortune dimension work load.

Disclosure of Invention

An object of the utility model is to provide an improve and prevent long-pending mud drainage pond, through having set up a series of square little cell body to the runner through the bottom slope change establishes ties little cell body, can make the mud drainage pond reach the easy of arbitrary needs, improves long-pending mud phenomenon simultaneously, makes things convenient for mud discharge.

In order to realize the purpose, the technical scheme of the utility model is that: the utility model provides an it arranges mud pond to prevent becoming silted up which characterized in that: the mud drainage pond includes a plurality of parallel arrangement's water conservancy diversion pond, every water conservancy diversion pond comprises the square little cell body that a plurality of set gradually along the rivers direction, every square little cell body is equipped with water inlet and delivery port respectively, advance, the department mouth of a river sets up respectively on a set of diagonal angle of the little cell body of square, advance, connect through the runner between the delivery port, another group of the little cell body of every square is equipped with a set of agitator to the angular position, be equipped with the partition wall between the little cell body of adjacent square, set up on the partition wall with runner complex overflow the entrance to a cave.

Preferably, one end of the diversion pool is provided with a water inlet pipe, the other end of the diversion pool is provided with a submersible pump chamber, the submersible pump chamber is connected with the sludge discharge pool through a runner, and a gate is arranged on the connected runner.

Furthermore, a plain concrete ramp is arranged at the bottom of the sludge discharging pool, the flow channel is arranged on the plain concrete ramp at the bottom of the sludge discharging pool, the gradient of the plain concrete ramp is 5-10%, and the flow channels between the adjacent small square pool bodies are connected to form a bent main flow channel.

Furthermore, the diagonal angle of the small square tank body provided with the stirrer is provided with a circular arc chamfer angle, and the stirrer is a plug flow stirrer.

Compared with the prior art, the technical scheme of the utility model except whole technical scheme's improvement, still include the improvement in the aspect of many details, particularly, have following beneficial effect:

1. the improved scheme of the utility model is provided with a plurality of small square cell bodies which are arranged in sequence along the water flow direction, the water inlet and the water outlet of each small square cell body are connected through a flow passage, a group of stirrers are arranged at the diagonal positions, and a plurality of small cell bodies are connected in series, so that the volume of the sludge discharge pool can be changed to meet the requirements of different setting occasions;

2. in the technical scheme of the utility model, the pool bottom of the sludge discharging pool is provided with the plain concrete ramp, the flow channel is arranged on the plain concrete ramp at the pool bottom of the sludge discharging pool, the gradient of the plain concrete ramp is 5-10%, and the flow channel between the adjacent small square pool bodies is connected to form a bending type main flow channel, thereby being beneficial to forming plug flow between the water inlet and the water outlet and being convenient for backward discharge of sludge;

3. the utility model is provided with the arc chamfers at the opposite angles of the small square tank body provided with the stirrer, and the mud drainage water flows in the tank by pushing of the plug flow type stirrer to form circulation, thereby avoiding mud precipitation;

4. the utility model has the advantages of simple structure, it is convenient that the installation is dismantled, does benefit to popularization and utilization.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a sectional view taken along line a-a in fig. 1.

Fig. 3 is a sectional view taken along line B-B of fig. 1.

Reference numerals:

1 water inlet pipe, 2 square small pool bodies, 3 stirrers, 4 plain concrete ramps, 5 gates, 6 runners, 7 water passing holes and 8 submersible pumps.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The utility model provides a prevent silting up mud discharging pool, specifically refer to FIG. 1, its difference with prior art lies in: the mud drainage pond includes a plurality of parallel arrangement's water conservancy diversion pond, every water conservancy diversion pond comprises the square little cell body that a plurality of set gradually along the rivers direction, every square little cell body is equipped with water inlet and delivery port respectively, advance, the department mouth of a river sets up respectively on a set of diagonal angle of the little cell body of square, advance, connect through the runner between the delivery port, another group of the little cell body of every square is equipped with a set of agitator to the angular position, be equipped with the partition wall between the little cell body of adjacent square, set up on the partition wall with runner complex overflow the entrance to a cave.

Particularly, the utility model discloses a plurality of less size square cell bodies make up (honeycomb cell body), advance in every combination cell body, set up the runner between the delivery port, still through set up circular chamfer at the pond angle, set up the gliding slope of mud of being convenient for at the cell body, simultaneously with the help of the plug flow effect of agitator, not only make row's muddy water form the circulation in single honeycomb, still with the help of the effect of restrainting of runner, make row's muddy water advance, form the plug flow between the delivery port to effectively avoid (or reduce) the sludge deposition in the pond.

The technical scheme of the utility model mainly embodies in following several aspects:

(1) a plurality of square pool bodies with smaller sizes are combined (meeting the requirement of the storage capacity of a sludge discharge pool) to form a honeycomb type pool body structure. The length and width of each tank body are both based on the pushing distance not greater than that of the pushing flow type stirrer (generally not greater than 8 m). A plurality of square tank bodies are combined, and the capacity required by any volume can be achieved.

(2) A water inlet and a water outlet are arranged near the opposite corners of each square tank body, a flow passage is arranged between the water inlet and the water outlet, and a slope finding of the slope flow passage is arranged on the periphery of the flow passage. The water inlet and the water outlet of each tank body are positioned near the diagonal positions of the tank bodies, and the rest holes are attached to the bottom of the tank except the inlet elevation of the water inlet end pipeline according to the general requirement; a flow channel is arranged between the water inlet and the water outlet, the depth of the flow channel is not less than 0.3m, a trapezoidal or semicircular section is adopted, and the size of the flow channel basically corresponds to that of the opening; and arranging plain concrete for slope finding at the periphery of the flow channel, and sloping the flow channel by a slope of 5-10% so as to facilitate the gathering of sludge to the flow channel. The flow channel and the slope are arranged, so that plug flow can be formed between the water inlet and the water outlet, and the sludge can be conveniently discharged backwards.

(3) In order to make the discharged muddy water form circular flow in a single small pool and avoid the static sediment formation, a plug flow type stirrer is also required to be arranged near the diagonal position (approximately symmetrical to the centers of the water inlet and the water outlet) of the pool body, and the discharged muddy water flows in the pool by the pushing of the plug flow type stirrer. In order to form circulation, a round chamfer is arranged at the corner of the square pool body.

In one embodiment, the utility model adopts a square pool body with smaller size, thereby reducing the dead angle of the structure; circular chamfers are arranged at opposite angles of the pool body on two sides of the flow channel, and a plug-flow stirrer is additionally arranged, so that water flow in the pool body flows, and standing is avoided; the water inlet and the water outlet are arranged at opposite angles, the flow channel is arranged between the water inlet and the water outlet, and the gradient of the slope flow channel is arranged at the same time, so that the flow pushing effect of the water flow is improved, and the sludge is naturally pushed to the flow channel.

Particularly, one end of the diversion pool is provided with a water inlet pipe, the other end of the diversion pool is provided with a submersible pump chamber, the submersible pump chamber is connected with a mud drainage pool through a runner, and a gate is arranged on the connected runner. The bottom of the mud drainage pool is provided with a plain concrete ramp, the flow channel is arranged on the plain concrete ramp at the bottom of the mud drainage pool, the slope of the plain concrete ramp is 5-10%, and the flow channels between the adjacent small square pool bodies are connected to form a bent main flow channel. The diagonal angle of the small square tank body provided with the stirrer is provided with a circular arc chamfer angle, and the stirrer is a plug flow stirrer. The side length of the small square pool body is less than or equal to 8m, the embedding depth of the flow channel is more than or equal to 0.3m, and the cross section of the flow channel is trapezoidal or semicircular. The diameter of the overflowing hole is larger than that of the flow passage.

In another embodiment, the planar dimensions of each small square tank 2 are square, the side length being determined as required (a), preferably not more than 8m (due to the restriction of the impeller distance). The depth (h) of a single pool body is determined according to needs, but the depth (generally not less than 0.3 m) of a flow channel and the thickness (c) of a slope finding plain concrete filling layer are included. The volume of the single pool body is w1= a (h-0.3-c/2)

If the total volume of the sludge discharging pool is determined to be W through calculation, W/W1 pool bodies are needed to be combined (generally taking a multiple of 2). For example, when the effective depth (after deducting the flow channel and the plain concrete filling layer) of the cell body is 4.5m, and the length and the width of the cell body are both 8m, the volume of the cell body reaches 288m3, after 6 cell bodies are combined, the total volume reaches 1728 m3, and after 8 cell bodies are combined, the total volume reaches 2304 m 3.

For the tank body 2, a flow channel 6 is arranged at the bottom of the tank body, the flow channel is basically arranged along a diagonal line, the section of the flow channel adopts a trapezoid or circular arc shape, the width of the flow channel is corresponding to the size of the overflow opening 7, the depth of the flow channel is at least 0.3m, and a plain concrete filling layer 4 is arranged between the flow channel and the tank wall for slope finding, so that a large amount of sludge is prevented from being deposited in a non-flow channel area of the tank body.

Partition walls are arranged among the pool bodies, water passing holes 7 are formed in the partition walls, and the water passing holes are matched with (slightly larger than) the overflowing capacity of the water inlet pipeline.

The bottom of the corner of the tank body at the two sides of the flow channel is provided with a chamfer angle to avoid forming a structure dead angle at the corner, and a plug flow type stirrer 3 is arranged near the corner. For the sludge water with high silt content, the rotating speed of the stirrer is preferably lower, the material is wear-resistant, and for the sludge water with low silt content, the rotating speed of the stirrer can be higher properly to increase the plug flow length. Through the stirrer arranged at the opposite angle, the mud discharging water is stirred in a single tank body by utilizing the plug flow effect of the mud discharging water, so that the sludge deposition is avoided.

After partial sludge is deposited in the flow channel, once the water level of the pool is lowered, the water flow can flush the sludge in the flow channel, thereby being beneficial to discharging the sludge.

After the outlet (provided with the gate 5) at the tail end of the combined sludge discharge water tank, the submersible pumps 8 are uniformly arranged according to the requirement, and the design of the submersible pump room is basically consistent with that of other sludge discharge water tanks.

The utility model discloses an adopt and be favorable to the performance to push away the less square cell body of STREAMING agitator efficiency, size to set up runner, push away STREAMING agitator, plain concrete in small-size cell body and look for measures such as slope, chamfer, avoid the mud discharging water deposit wherein, especially when the mud discharging water pond water level is lower, the plug flow effect of business turn over water is favorable to the automatic mud of washing deposit in the runner. Any required volume can be obtained by combining a plurality of small-sized square tank bodies. The utility model discloses to reduce the sludge deposit in the mud drainage pond, improve the daily operation efficiency in mud drainage pond, reduce subsequent fortune dimension work load and have very important practical meaning.

The foregoing is a more detailed description of the invention, taken in conjunction with the accompanying preferred embodiments, and it is not intended that the invention be limited to the specific embodiments described above. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. The utility model provides an it arranges mud pond to prevent becoming silted up which characterized in that: the mud drainage pond includes a plurality of parallel arrangement's water conservancy diversion pond, every water conservancy diversion pond comprises the square little cell body that a plurality of set gradually along the rivers direction, every square little cell body is equipped with water inlet and delivery port respectively, advance, the delivery port sets up respectively on a set of diagonal angle of the little cell body of square, advance, connect through the runner between the delivery port, another group of the little cell body of every square is equipped with a set of agitator to the angular position, be equipped with the partition wall between the little cell body of adjacent square, set up on the partition wall with runner complex overflow the entrance to a cave.

2. The silt-preventing and sludge-discharging pool according to claim 1, wherein: one end in water conservancy diversion pond is equipped with the inlet tube, and the other end in water conservancy diversion pond is equipped with the diving pump room, links to each other through the runner between diving pump room and the mud discharging pond, is provided with the gate on the runner of connection.

3. The silt-preventing and sludge-discharging pool according to claim 1, wherein: the bottom of the mud drainage pool is provided with a plain concrete ramp, the flow channel is arranged on the plain concrete ramp at the bottom of the mud drainage pool, the slope of the plain concrete ramp is 5-10%, and the flow channels between the adjacent small square pool bodies are connected to form a bent main flow channel.

4. The silt-preventing and sludge-discharging pool according to claim 1, wherein: the diagonal angle of the small square tank body provided with the stirrer is provided with a circular arc chamfer angle, and the stirrer is a plug flow stirrer.

5. The silt-preventing and sludge-discharging pool according to claim 1, wherein: the side length of the small square pool body is less than or equal to 8m, the embedding depth of the flow channel is more than or equal to 0.3m, and the cross section of the flow channel is trapezoidal or semicircular.

6. The silt-preventing and sludge-discharging pool according to claim 1, wherein: the diameter of the overflowing hole is larger than that of the flow passage.