CN216427071U - Supernatant collecting device of slurry adjusting tank - Google Patents

Abstract

The utility model discloses a mud equalizing basin supernatant collection device. The device comprises a floating box, a supernatant collecting pipe and a drain pipe, wherein the supernatant collecting pipe is arranged at the bottom of the floating box, one end of the drain pipe is communicated with the supernatant collecting pipe, the other end of the drain pipe extends out of the regulating tank, and the horizontal height of the other end of the drain pipe is lower than that of the supernatant collecting pipe. The utility model discloses having improved the "running muddy" phenomenon that exists in the drainage of traditional overflow weir, through the even collection of supernatant collecting pipe, can showing the reduction velocity of flow in large-traffic drainage, lower floor's mud does not receive the disturbance in making the mud equalizing basin, reduces the turbidity and the suspended solid of drainage. Compared with the scheme of adopting water pump power pumping, the scheme has obvious economic advantages, and the adopted unpowered design has high reliability. The whole device is simple to assemble, wide in application range and flexible and mobile in working.

Description

Supernatant collecting device of slurry adjusting tank

Technical Field

The utility model relates to an environmental treatment technical field especially relates to a mud equalizing basin supernatant collection device.

Background

At the present stage, the treatment of bottom mud, engineering mud and municipal sludge of rivers and lakes in cities is performed dewatering and solidifying treatment on the mud by using mud-water separation equipment such as a plate-and-frame filter press, a belt type machine, a centrifugal machine and the like, and various researches show that the treatment efficiency of the equipment is influenced by the water content of the mud to be treated, namely the treatment efficiency is lower when the water content of the mud to be treated is higher, and the time for filtering (separating) the water content of the equipment is prolonged because of the increase of the water content in the mud. With the development of the technology, technicians begin to arrange a slurry adjusting tank at the front end of the treatment process for storing slurry, and the concentration of the slurry to be treated in the slurry adjusting tank is improved by adding a flocculating agent and discharging supernatant, so that the utilization efficiency of subsequent process equipment is improved.

The current supernatant removal modes mainly comprise:

and (I) a large-flow low-lift water pump is adopted for pumping, and a submerged pump or a submersible pump is mainly adopted for pumping. The disadvantage is that the energy consumption is large. Particularly, in the sediment treatment project of river and lake dredging, a large amount of water can be mixed into the sediment in the sediment dredging process, so that the subsequent water pumping and discharging amount is greatly increased, and the energy consumption is improved. In addition, power equipment is adopted for pumping and drainage, and corresponding overhaul and maintenance forces must be equipped.

And (II) adopting an overflow weir drainage mode, wherein the overflow weir is mainly a fixed overflow weir for drainage of a hydraulic reclamation area according to 10.3 in JTS181-5-2012 design Specification for dredging and hydraulic reclamation engineering. However, this solution has the following drawbacks: 1. because the weir generally has a limited width, excessive displacement increases the flow rate and causes a "sloshing" phenomenon; 2. because the overflow weir is fixed, the mud granule can be along with the fixed siltation of direction of rivers, and it is inhomogeneous to make to form "stagnant water district" in the equalizing basin and lead to mud and particulate matter deposit to influence the suction efficiency of cutter suction dredger and dive desilting pump.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an equipment is simple, wide, the mud equalizing basin supernatant collection device of unpowered design of application scope to the above-mentioned not enough of prior art.

The utility model discloses a mud equalizing basin supernatant collection device, including flotation tank, supernatant collecting pipe and drain pipe, the supernatant collecting pipe sets up the bottom of flotation tank, the drain pipe one end with the supernatant collecting pipe is linked together, and the other end stretches to outside the equalizing basin, and the other end level is less than supernatant collecting pipe place level.

Furthermore, the supernatant collecting pipe is an annular pipe, and a plurality of water collecting holes are formed in the pipe wall of the supernatant collecting pipe at intervals.

Furthermore, the other end of the drain pipe is also provided with a valve.

Furthermore, the bottom of the buoyancy tank is also provided with a mud interface sensor and an alarm electrically connected with the mud interface sensor.

Furthermore, the valve is an electromagnetic valve, and the slurry interface sensor is electrically connected with the electromagnetic valve.

Furthermore, a connecting cable is also arranged on the buoyancy tank.

Furthermore, the side wall of the buoyancy tank is provided with a pull ring, and one end of the connecting cable is fixed on the pull ring.

Furthermore, the floating box is a metal box, and the supernatant collecting pipe is a PE pipe.

Furthermore, the buoyancy tank is provided with a filling opening.

The utility model discloses a mud equalizing basin supernatant collection device adopts the flotation tank as the carrier that provides buoyancy, fixes the supernatant collecting pipe in the flotation tank lower part, makes the supernatant collecting pipe soak 20-50cm below the surface of water, then discharges the pond of adjusting water through the drain pipe.

The utility model discloses having improved the "running muddy" phenomenon that exists in the drainage of traditional overflow weir, through the even collection of supernatant collecting pipe, can showing the reduction velocity of flow in large-traffic drainage, lower floor's mud does not receive the disturbance in making the mud equalizing basin, reduces the turbidity and the suspended solid of drainage. Compared with the scheme of adopting water pump power pumping drainage, the method has obvious economic advantages (energy source and maintenance) and high reliability of the adopted unpowered design. Whole device equipment is simple, and application scope is wide, and the flexible maneuver of during operation can the pertinence collect the supernatant in each region in the equalizing basin, has avoided to a certain extent in traditional overflow weir drainage scheme because fixed water outlet point, hydrodynamic force flow direction is single to make the equalizing basin have "stagnant water district" and then make mud and granule deposit inhomogeneous in the pond.

Drawings

Fig. 1 is a schematic structural view of a supernatant collecting device of a slurry adjusting tank of the present invention on the slurry adjusting tank;

fig. 2 is a top view of the supernatant collecting device of the slurry adjusting tank of the present invention.

1. A buoyancy tank; 11. a filling opening; 12. a discharge port; 2. a supernatant collecting pipe; 21. a water collection hole; 3. a drain pipe; 31. a valve; 4. a mud interface sensor; 5. an alarm; 6. connecting a cable; 7. and (4) a pull ring.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the utility model discloses a mud equalizing basin supernatant collection device, including flotation tank 1, supernatant collecting pipe 2 and drain pipe 3, supernatant collecting pipe 2 sets up in the bottom of flotation tank 1, and the one end and the supernatant collecting pipe 2 of drain pipe 3 are linked together, and the other end stretches to outside the equalizing basin, and the other end level is less than supernatant collecting pipe 2 place level.

The utility model discloses a mud equalizing basin supernatant collection device adopts flotation tank 1 as the carrier that provides buoyancy, fixes supernatant collecting pipe 2 in flotation tank 1 lower part, makes supernatant collecting pipe 2 soak 20-50cm below the water level, then discharges the pond of adjusting water through drain pipe 3.

The utility model discloses improved "run muddy" phenomenon that exists in the drainage of traditional overflow weir, through the even collection of supernatant collecting pipe 2, can show the velocity of flow reduction in large-traffic drainage, lower floor's mud does not receive the disturbance in making the mud equalizing basin, reduces the turbidity and the suspended solid of drainage. Compared with the scheme of adopting water pump power pumping drainage, the method has obvious economic advantages of energy, maintenance and high reliability of the adopted unpowered design. Whole device equipment is simple, and application scope is wide, and the flexible maneuver of during operation can the pertinence collect the supernatant in each region in the equalizing basin, has avoided to a certain extent in traditional overflow weir drainage scheme because fixed water outlet point, hydrodynamic force flow direction is single to make the equalizing basin have "stagnant water district" and then make mud and granule deposit inhomogeneous in the pond.

The supernatant collecting pipe 2 can be an annular pipe, a plurality of water collecting holes 21 are arranged on the pipe wall of the supernatant collecting pipe 2 at intervals, and the water collecting holes 21 can be arranged in a staggered plum blossom shape.

The other end of the water discharge pipe 3 can be further provided with a valve 31 for controlling the opening and closing of the water discharge pipe 3 and the water flow.

The bottom of the buoyancy tank 1 is also provided with a mud interface sensor 4 and an alarm 5 electrically connected with the mud interface sensor 4. When mud interface sensor 4 detects the mud interface, the siren makes a sound, reminds operating personnel in time to take out the device, prevents that mud from getting into supernatant collecting pipe 2, discharges from drain pipe 3 even, in order to prevent operating personnel untimely work, valve 31 can be the solenoid valve, and mud interface sensor 4 is connected with the solenoid valve electricity, and when mud interface sensor 4 detected the mud interface, the siren makes a sound simultaneously, and the solenoid valve is closed, prevents that mud from discharging from drain pipe 3.

The buoyancy tank 1 can be further provided with a connecting cable 6, the side wall of the buoyancy tank 1 is provided with a pull ring 7, one end of the connecting cable 6 is fixed on the pull ring 7, and the position of the whole device in the slurry adjusting tank is moved by dragging the connecting cable 6, so that the most suitable area is selected to remove supernatant.

The buoyancy tank 1 is a metal tank, the supernatant collecting pipe 2 is a PE pipe, the diameter and the total length of the supernatant collecting pipe 2 are adjusted according to daily water displacement in the whole process system, so that the water drainage requirement is met, and the parallel supernatant collecting pipes 2 can be additionally arranged inside or outside the circle of supernatant collecting pipe 2 for the process system with large water displacement.

The floating box 1 may be provided with a filling opening 11 and a discharge opening 12 to adjust the total weight of the floating box 1, and sequentially adjust the depth of the supernatant collecting pipe 2 immersed in the water surface, for example, the supernatant collecting pipe 2 may be lowered to a deeper depth by discharging a certain amount of water into the filling opening 11, and when the supernatant collecting pipe needs to be lowered to a shallower depth, a certain amount of water may be discharged.

It should be noted that the mud interface sensor 4 is based on the principle of a photoelectric sensor, when the mud interface sensor 4 is not in contact with a sludge layer, the light wave transmitted by the emitter of the mud interface sensor 4 (such as supernatant) is arranged by the receiver-emitter and the receiver of the mud interface sensor 4 at intervals; when the mud interface sensor 4 comes into contact with the sludge layer, the light waves emitted by the emitter of the mud interface sensor 4 cannot penetrate the sludge and, therefore, cannot be received by the receiver electrode. The mud interface sensor 4 may employ, and is not limited to, visible and infrared light.

The above is not relevant and is applicable to the prior art.

Although certain specific embodiments of the present invention have been described in detail by way of illustration, it will be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention, which is to be construed as broadly as the present invention will suggest themselves to those skilled in the art to which the invention pertains and which is susceptible to various modifications or additions and similar arrangements to the specific embodiments described herein without departing from the scope of the invention as defined in the appended claims. It should be understood by those skilled in the art that any modifications, equivalent substitutions, improvements and the like made to the above embodiments according to the technical spirit of the present invention should be included in the scope of the present invention.

Claims (9)

1. The utility model provides a mud equalizing basin supernatant collection device which characterized in that: including flotation tank (1), supernatant collecting pipe (2) and drain pipe (3), supernatant collecting pipe (2) set up the bottom of flotation tank (1), the one end of drain pipe (3) with supernatant collecting pipe (2) are linked together, and the other end stretches outside the equalizing basin, and the other end level is less than supernatant collecting pipe (2) place level.

2. The apparatus for collecting supernatant in a slurry adjusting tank according to claim 1, wherein: the supernatant collecting pipe (2) is an annular pipe, and a plurality of water collecting holes (21) are arranged on the pipe wall of the supernatant collecting pipe (2) at intervals.

3. The supernatant collection device of a mud conditioning tank of claim 1, wherein: and the other end of the water discharge pipe (3) is also provided with a valve (31).

4. The apparatus for collecting supernatant in a slurry adjusting tank according to claim 3, wherein: the bottom of the buoyancy tank (1) is also provided with a mud interface sensor (4) and an alarm (5) electrically connected with the mud interface sensor (4).

5. The supernatant collection device of the mud conditioning tank as set forth in claim 4, wherein: the valve (31) is an electromagnetic valve, and the slurry interface sensor (4) is electrically connected with the valve (31).

6. The supernatant collection device of a mud conditioning tank of claim 1, wherein: and a connecting cable (6) is also arranged on the buoyancy tank (1).

7. The apparatus for collecting supernatant in a slurry adjusting tank according to claim 6, wherein: the side wall of the buoyancy tank (1) is provided with a pull ring (7), and one end of the connecting cable (6) is fixed on the pull ring (7).

8. The supernatant collection device of a mud conditioning tank of claim 1, wherein: the floating box (1) is a metal box, and the supernatant collecting pipe (2) is a PE pipe.

9. The supernatant collection device of a mud conditioning tank of claim 1, wherein: the floating box (1) is provided with a filling opening (11) and a discharge opening (12).

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