CN219483538U - Sediment treatment and sand washing device - Google Patents

Abstract

The utility model relates to a silt treatment and sand washing device which is arranged in a water inlet pump room and a sand basin, wherein the device comprises a water return pump, a hose and a flushing assembly which are sequentially connected, the flushing assembly is arranged at the tail end of a coarse grid well in the water inlet pump room and the front end of a water collecting well, a water outlet of the sand basin is connected with the water return pump through the water return pipe, a sand outlet pipe of the sand basin is connected with a water inlet of the sand basin through the sand return pipe, and an adjusting valve is arranged on the sand return pipe. Compared with the prior art, the utility model can timely clear and drag for the settled mud in the water collecting well of the water inlet pump house, reduces the manual investment, has good sand washing effect, and effectively ensures the long-term safe and stable operation of the sewage treatment plant.

Description

Sediment treatment and sand washing device

Technical Field

The utility model relates to the technical field of sewage treatment, in particular to a mud-settling treatment and sand washing device.

Background

The water inlet pump house is used as a first structure of the sewage treatment plant, and has the worst water quality and the most complex components. In the prior art, by installing a coarse grille, garbage with larger size is blocked, but a large amount of pollutants which are not intercepted still enter a water collecting well of a water inlet pump house, wherein sludge and sand with larger specific gravity can be gradually deposited in the water collecting well, and cannot be caught and sucked by a sewage pump. The bottom of the water collecting well is gradually covered by sludge along with the accumulation of time, so that the problems of reduced volume of the water collecting well, raised water level of a sewage pipe network system and the like are caused. Therefore, the prior art adopts a manual timing cleaning and fishing method to clean and drag the water collecting well of the water inlet pump house, but H is in the water inlet pump house ₂ S gas concentration is high, personnel poisoning event easily occurs, and labor danger is high.

Meanwhile, the grit chamber is used as a pretreatment structure of the sewage treatment plant, and the grit chamber is mainly used for protecting the normal operation of subsequent sewage treatment equipment by removing sand grains in sewage. However, the sand washing effect of the grit chamber in the prior art is poor, and organic matters attached to the surface of sand grains cannot be separated, so that the sand grains generate malodor, the treatment difficulty is increased, and part of carbon sources in sewage are taken away to influence the efficiency of subsequent biochemical treatment.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provide a mud treatment and sand washing device, which can timely clear and drag the mud in the water collecting well of the water inlet pump house, reduce the labor investment, and simultaneously has good sand washing effect, and effectively ensures the long-term safe and stable operation of a sewage treatment plant.

The aim of the utility model can be achieved by the following technical scheme:

the utility model provides a silt treatment and sand washing device which is arranged in a water inlet pump room and a sand basin, wherein the device comprises a water return pump, a hose and a flushing assembly which are sequentially connected, the flushing assembly is arranged at the tail end of a coarse grid well in the water inlet pump room and the front end of a water collecting well, a water outlet of the sand basin is connected with the water return pump through the water return pipe, a sand outlet pipe of the sand basin is connected with a water inlet of the sand basin through the sand return pipe, and an adjusting valve is arranged on the sand return pipe.

Preferably, the flushing assembly comprises a bidirectional rotating motor, a flushing water pipe and a plurality of nozzles, wherein an output shaft of the bidirectional rotating motor is connected with the flushing water pipe, the hose is connected with the flushing water pipe, and the nozzles are arranged on the flushing water pipe.

Preferably, the mounting height of the flushing assembly is higher than the water surface height of the water collection well, and the lowest point of the nozzle is higher than the water surface height of the water collection well.

Preferably, a plurality of hoses are provided, and each hose is correspondingly connected with one flushing water pipe.

Preferably, the rotation speed of the bi-directional rotating electric machine is 5 degrees/min to 10 degrees/min.

Preferably, the silt deposition treatment and sand washing device further comprises a fan, an air pipe and a perforated aeration pipe which are connected in sequence, wherein the perforated aeration pipe is arranged on the pool wall of the water collecting well of the water inlet pump house.

Preferably, two perforated aeration pipes are arranged on the pool walls at two sides of the water collecting well of the water inlet pump room respectively, and each perforated aeration pipe is connected with one air pipe correspondingly.

Preferably, the perforated aeration pipes are horizontally arranged on the pool walls at two sides of the water collecting well of the water inlet pump house.

Preferably, the perforated aerator pipe is mounted at a height above the lowest level in the water collection well.

Preferably, the flushing assembly is fixed to the tank wall of the water inlet pump house by a fixing piece.

Compared with the prior art, the utility model has the following advantages:

(1) According to the utility model, the water return pump, the hose and the flushing assembly are sequentially connected, the water outlet of the grit chamber is connected with the water return pump through the water return pipe, so that when excessive silt is deposited in the water collecting well of the water inlet pump house, the water return pump is started to convey water in the grit chamber to the hose through the water return pipe, the hose is conveyed to the flushing assembly, the deposited silt is flushed by the flushing assembly, the silt is gradually decomposed and loosened under the flushing of high-speed water quantity to become a mud-water mixture, and finally the mud-water mixture is conveyed to the lifting pump arranged at the tail end of the water collecting well along with the water flow movement direction, and is caught and conveyed to a subsequent treatment system by the lifting pump, so that the silt in the water collecting well of the water inlet pump house can be cleaned and fished in time, and the manual investment is reduced.

(2) According to the utility model, the sand outlet pipe of the grit chamber is connected with the water inlet of the grit chamber through the sand return pipe, and the regulating valve is arranged on the sand return pipe, so that when the content of organic matters in sand outlet in the grit chamber is high, the regulating valve is opened, so that the sand outlet flows to the water inlet of the grit chamber through the sand return pipe, the concentration of sand in the grit chamber is increased, the collision probability is increased, and the problems that the sand washing effect of the grit chamber in the prior art is poor and the organic matters attached to the surface of sand grains cannot be separated are solved.

Drawings

Fig. 1 is a schematic side view of a sludge treatment and sand washing device according to the present embodiment.

Fig. 2 is a front view of a water inlet pump house of the silt treatment and sand washing apparatus according to the present embodiment.

The figure indicates:

1. the device comprises a water return pump, 2, a hose, 3, a fixing piece, 4, a bidirectional rotating motor, 5, a flushing water pipe, 6, a nozzle, 7, a fan, 8, an air pipe, 9, a perforated aeration pipe, 10, a sand setting tank water inlet pipe, 11, a water return pipe, 12, a sand return pipe, 13 and a regulating valve.

Detailed Description

The utility model will now be described in detail with reference to the drawings and specific examples.

Examples:

as shown in fig. 1, this embodiment provides a silt treatment and sand washing device, locate in intake pump house and the grit chamber, including the return pump 1 that connects gradually, hose 2 and flushing assembly, flushing assembly locates the front end department of the thick grid well in the intake pump house and catch basin, the delivery port of grit chamber is connected with return pump 1 through return pipe 11, is connected through return sand pipe 12 between the water inlet of grit chamber's play sand pipe and grit chamber, is equipped with governing valve 13 on the return sand pipe 12.

Through the technical scheme, when excessive sludge is deposited in the water collecting well of the water inlet pump house, the water return pump 1 is started, water in the grit chamber is conveyed to the hose 2 through the water return pipe 11, then the hose 2 is conveyed to the flushing assembly, the flushing assembly is used for flushing the deposited sludge, the deposited sludge is gradually decomposed and loosened under the flushing of high-speed water quantity to become a sludge water mixture, and finally the sludge water mixture is conveyed to a lifting pump arranged at the tail end of the water collecting well along with the water flow moving direction, and is caught and conveyed to a subsequent treatment system by the lifting pump, so that the dredging process is finished.

When the content of organic matters in sand discharged from the sand setting tank is high, the regulating valve 13 is opened, so that the discharged sand flows to the water inlet of the sand setting tank through the sand return pipe 12, the concentration of the sand in the sand setting tank is increased, the collision probability is increased, and the aim of reducing the organic matters attached to the surface of sand grains is fulfilled. And the sand amount can be roughly adjusted by the adjusting valve.

As an alternative embodiment, the flushing assembly includes a bi-directional rotating motor 4, a flushing water pipe 5, and a plurality of nozzles 6, the output shaft of the bi-directional rotating motor 4 is connected with the flushing water pipe 5, the hose 2 is connected with the flushing water pipe 5, and the plurality of nozzles 6 are provided on the flushing water pipe 5.

The water in the grit chamber is conveyed to the hose 2 through the water return pipe 11, and then is conveyed to the flushing water pipe 5 through the hose 2, and the bidirectional rotary motor 4 is started, so that the bidirectional rotary motor 4 starts to rotate, and the rotation speed of the bidirectional rotary motor 4 is 5-10 degrees/min. When the bi-directional rotating electric machine 4 rotates to a certain angle in a certain direction (for example, clockwise), the bi-directional rotating electric machine 4 rotates to the initial position in the opposite direction (for example, anticlockwise), and the nozzle 6 returns to the initial position after a plurality of cycles, thereby completing dredging.

As an alternative embodiment, the flushing assembly is fastened to the wall of the intake pump house by means of a fastening element 3.

As an alternative embodiment, the flush assembly is mounted at a height above the water surface, and the lowest point of the nozzle 6 is above the water surface when the nozzle 6 is in a vertically downward position.

As an alternative embodiment, a plurality of hoses 2 are provided, each hose 2 is connected to one flushing water pipe 5, and each flushing water pipe 5 is connected to one bi-directional rotating motor 4.

As an alternative implementation manner, the tank walls on two sides of the water collecting well of the water inlet pump house are respectively provided with a perforated aeration pipe 9, and the perforated aeration pipes 9 are connected with a fan 7 through an air pipe 8.

When the water inlet pump house runs at high liquid level, the fan 7 is started, and aeration is carried out to the water collecting well through the air pipe 8 and the perforated aeration pipe 9 in sequence, so that water flow in the water collecting tank is disturbed, mud and sand are not easy to deposit, and meanwhile, the mud and sand can collide and rub with each other, and organic matters attached to the mud and sand are washed away. And the fan frequency conversion control 7 is used for adjusting the air quantity according to the quality of the inlet water and the running condition. When the water level drops to the lowest level, aeration is stopped.

Through the technical scheme, the sedimentation speed of the sludge can be reduced, the settled sludge in the water collecting well of the water inlet pump house is cleaned and fished, and simultaneously, before sand washing in the sand setting tank, organic matters attached to the surface of sand grains are roughly separated.

As an alternative embodiment, perforated aeration pipes 9 are horizontally installed on the tank walls on both sides of the water collection well of the water inlet pump house.

As an alternative embodiment, the perforated aerator pipe 9 is mounted at a height above the lowest level in the water collection well.

The foregoing describes in detail preferred embodiments of the present utility model. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the utility model by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims (10)

1. The utility model provides a silt treatment and sand washing device, its characterized in that locates in intake pump house and the grit chamber, the device is including return pump (1), hose (2) and the washing subassembly that connect gradually, the front end department of thick grid well and catch basin in the intake pump house is located to the washing subassembly, the delivery port of grit chamber pass through return pipe (11) with return pump (1) are connected, the sand outlet pipe of grit chamber with connect through return sand pipe (12) between the water inlet of grit chamber, be equipped with governing valve (13) on return sand pipe (12).

2. The silt treatment and sand washing apparatus according to claim 1, characterized in that the flushing assembly comprises a bi-directional rotating motor (4), a flushing water pipe (5) and a plurality of nozzles (6), wherein the output shaft of the bi-directional rotating motor (4) is connected with the flushing water pipe (5), the hose (2) is connected with the flushing water pipe (5), and the plurality of nozzles (6) are arranged on the flushing water pipe (5).

3. A sludge treatment and sand washing device according to claim 2, characterized in that the flushing assembly is mounted at a level higher than the water level of the water collection well and that the lowest point of the nozzle (6) is higher than the water level of the water collection well.

4. A sludge treatment and sand washing device according to claim 2, characterized in that a plurality of hoses (2) are provided, each hose (2) being connected to a respective flushing pipe (5).

5. The sludge treatment and sand washing device according to claim 2, characterized in that the rotation speed of the bi-directional rotating motor (4) is 5-10 degrees/min.

6. The silt treatment and sand washing device according to claim 1, further comprising a fan (7), an air pipe (8) and a perforated aeration pipe (9) which are connected in sequence, wherein the perforated aeration pipe (9) is arranged on the tank wall of the water collecting well of the water inlet pump house.

7. The silt treatment and sand washing device according to claim 6, characterized in that two perforated aeration pipes (9) are arranged on the tank walls on two sides of the water collecting well of the water inlet pump house, and each perforated aeration pipe (9) is correspondingly connected with one air pipe (8).

8. A sludge treatment and sand washing device according to claim 6, characterized in that the perforated aeration pipe (9) is horizontally mounted on the tank walls on both sides of the water collection well of the water inlet pump house.

9. A sludge treatment and sand washing device according to claim 6, characterized in that the perforated aeration pipe (9) is mounted at a height above the lowest level in the water collection well.

10. A silt treatment and sand washing apparatus according to claim 1, wherein the flushing assembly is fixed to the wall of the water intake pump house by a fixing member (3).