CN214436734U - Energy-saving sedimentation tank - Google Patents

Abstract

An energy-saving sedimentation tank comprises a sedimentation tank, a water inlet end, a water outlet end, a sludge hopper, a sludge discharge valve, a sludge discharge channel and a sludge discharge pipe; the water inlet end and the water outlet end are respectively arranged at the top of the sedimentation tank and at the two ends of the sedimentation tank; the water inlet end is provided with a water inlet and comprises a water inlet groove arranged at the inlet of the sedimentation tank and a plurality of water distribution holes uniformly arranged at the bottom of the water inlet groove, and the front end of the sedimentation tank is provided with a flow baffle plate; the water outlet end comprises a water collecting branch channel and a water collecting tank; the sludge discharge channels are arranged at two sides of the top of the sedimentation tank, and sludge discharge valves are uniformly arranged in the sludge discharge channels; the sludge buckets are uniformly arranged at the bottom along the length of the sedimentation tank, and each sludge bucket is connected with a sludge discharge valve through a sludge discharge pipe. The sedimentation tank has simple structure, practical function and high reliability of the whole system; a multi-bucket horizontal flow sedimentation tank is adopted, water distribution is uniform, and the sedimentation effect is good; the sludge discharge amount is adjustable, and the sludge discharge is automatically controlled; the sludge is collected in sections, and the sludge discharge effect is good; the method is suitable for sewage treatment plants with different treatment scales, in particular to a secondary sedimentation tank of an underground sewage treatment plant.

Description

Energy-saving sedimentation tank

The technical field is as follows:

the utility model belongs to the technical field of sewage treatment, in particular to sedimentation tank technical field specifically is an energy-conserving sedimentation tank.

Background art:

with the continuous development of economy in China, the requirements of people on the environment are higher and higher, and in order to improve the current situation of water environment pollution and save land resources, more and more sewage treatment plants in China adopt underground sewage treatment plants in recent years. The available area of the underground sewage treatment plant is very small, and in order to reduce the land use as much as possible, the secondary sedimentation tank adopts a rectangular peripheral inlet and outlet sedimentation tank which has large surface hydraulic load, good sedimentation effect, high solid load, high concentration of return sludge and small occupied area.

The working principle of the rectangular periphery inlet and outlet sedimentation tank is similar to that of the circular periphery inlet and outlet sedimentation tank, and the rectangular periphery inlet and outlet sedimentation tank and the circular periphery inlet and outlet sedimentation tank both have the advantages of high tank volume utilization rate, few dead water areas, good outlet water quality and the like. However, due to the special design of the water distribution form and the sludge discharge form of the rectangular peripheral inlet outlet sedimentation tank, the surface hydraulic load and the solid load of the sedimentation tank are greatly improved, so that the floor area of the sedimentation tank is obviously reduced on the premise of ensuring good outlet water quality, the number of the sedimentation tank and equipment is reduced, and the civil engineering investment and the equipment investment are effectively reduced.

At present, two heavy ponds of underground sewage treatment plant are mostly the rectangle sedimentation tank, and the bottom is equipped with the sludge impoundment, scrapes mud and adopts the chain mud scraper, drives the mud scraper through carrying the chain and clears up the mud of sedimentation tank bottom. The sludge quantity accumulated at the bottom of the sedimentation tank is large, so that the sludge scraping plate is subjected to large force, and the sludge scraping plate is easy to jump upwards or incline and shake in the moving process; the whole mud scraper is located underwater, so that the maintenance is difficult, and the mud scraping efficiency is influenced. In addition, the chain mud scraper is mostly imported equipment abroad, and the cost is high, and the maintenance is complicated. Therefore, a novel energy-saving sedimentation tank which has a simple structure, saves investment, has high reliability of the whole system and can also play a role in energy conservation and consumption reduction is urgently needed.

The invention content is as follows:

the utility model provides an energy-conserving sedimentation tank, simple structure, functional practicality, no mechanical equipment, non-maintaining, investment province, entire system's reliability is high, can also play energy saving and consumption reduction's effect simultaneously.

The utility model discloses a realize above-mentioned purpose, adopt following technical scheme:

the utility model provides an energy-saving sedimentation tank, which adopts a peripheral inlet and outlet rectangular sedimentation tank, adopts a multi-bucket horizontal sedimentation tank and comprises a sedimentation tank, a water inlet end, a water outlet end, a sludge bucket, a sludge discharge valve, a sludge discharge channel and a sludge discharge pipe; the water inlet end and the water outlet end are respectively arranged at the top of the sedimentation tank and at the two ends of the sedimentation tank; the water inlet end adopts a combination form of a submerged hole and a flow baffle plate, the water inlet end is provided with a water inlet and comprises a water inlet groove arranged at the inlet of the sedimentation tank and a plurality of water distribution holes uniformly arranged at the bottom of the water inlet groove, and the flow baffle plate is arranged at the front end of the sedimentation tank; the water outlet end is provided with a water outlet, and the water outlet comprises a water collecting branch channel and a water collecting tank; the sludge discharge channels are arranged at two sides of the top of the sedimentation area of the sedimentation tank, and sludge discharge valves are uniformly arranged in the sludge discharge channels; sludge bucket along the long even arrangement in the sedimentation tank bottom of sedimentation tank, every sludge bucket sets up solitary mud valve and sludge discharge pipe, and during the sludge discharge pipe inserted sludge bucket, sludge discharge union coupling sludge bucket and mud valve.

The sedimentation tank comprises a tank body and a sedimentation area, and the plane of the tank body is rectangular.

The flow baffle adopts a straight plate form, the installation position is 0.5-1.0 m away from the water inlet, and the installation angle is 90 degrees.

The water collecting tank adopts an overflow type sawtooth-shaped triangular weir mechanism.

The sludge bucket adopts a trapezoidal section type, and the inclination angle between the inclined wall of the sludge bucket and the horizontal plane is not less than 60 degrees.

The sludge hoppers are arranged into one row or two rows.

The mud valve adopts a sleeve valve.

The energy-saving sedimentation tank is provided with an electric hoist.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model has simple structure and practical function; no mechanical equipment, no maintenance and high reliability of the whole system.

2. The utility model discloses the cost is low, the energy consumption is low, easy operation, can play energy saving and consumption reduction's effect.

3. The utility model adopts the multi-bucket horizontal sedimentation tank, adopts the rectangular sedimentation tank with circumferential inlet and circumferential outlet, has even water distribution and good sedimentation effect; the sludge discharge amount is adjustable, and the sludge discharge is automatically controlled; the sludge is collected in sections, and the sludge discharge effect is good; the method is suitable for sewage treatment plants with different treatment scales, in particular to a secondary sedimentation tank of an underground sewage treatment plant.

Description of the drawings:

fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic plan view of the present invention;

FIG. 3 is a schematic structural view of the water inlet of the present invention;

fig. 4 is a schematic structural view of the water outlet of the present invention;

FIG. 5 is a schematic structural view of the triangular weir mechanism with sawtooth lines of the present invention;

fig. 6 is a schematic structural view of the mud discharging hopper of the present invention.

Reference numbers in the figures:

1-a sedimentation tank, 2-a water inlet tank, 3-a flow baffle, 4-a sludge hopper, 5-a sleeve valve, 6-an overflow type zigzag triangular weir mechanism, 7-a water collecting tank, 8-a water collecting branch channel, 9-a mud discharging channel and 10-a mud discharging pipe.

The specific implementation mode is as follows:

the technical solutions will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-6, the utility model provides an energy-saving sedimentation tank belongs to a type of advection formula sedimentation tank, adopts and goes into all around and go out the rectangle sedimentation tank, and this energy-saving sedimentation tank adopts the many bucket types advection sedimentation tank, and it includes sedimentation tank 1, the end of intaking, goes out water end, sludge bucket 4, mud valve 5, mud discharging canal 9 and mud pipe 10. The sedimentation tank 1 comprises a tank body and a sedimentation zone, the plane of the tank body is rectangular, and the sedimentation zone plays a role in sedimentation and separates suspended matters from sewage in the sedimentation tank 1. The water inlet end and the water outlet end are respectively arranged at the top of the sedimentation tank 1 and at the two long ends of the sedimentation tank 1. The end of intaking adopts the combination form of inundation hole and fender stream board 3, and the end of intaking is provided with the water inlet, including setting up in a plurality of water distribution holes that evenly set up in intake chamber 2, the 2 bottoms of intake chamber of 1 import of sedimentation tank, supply the water distribution usefulness, sewage gets into the settling zone of sedimentation tank 1 through distributing the water hole, and the via hole velocity of flow control is preferred at 0.1 ~ 0.2 m/s. The front end of the sedimentation tank 1 is provided with a flow baffle 3, so that the inlet water is guided to a sedimentation area and the water distribution is uniform, the area of the area is large, the downward flow velocity is small, and the impact on the sludge settled at the bottom of the sedimentation tank 1 is avoided. The arrangement of the flow baffle 3 has obvious influence on the uniformity of water distribution at the front end of the sedimentation tank 1. The flow baffle 3 is optimized in form, installation position and angle, the flow baffle 3 is in a straight plate form, the installation position is 0.5-1.0 m away from the water inlet, the installation angle is 90 degrees, the flow velocity distribution in the water distribution channel is improved to a certain extent, and the water distribution uniformity of the sedimentation tank 1 is improved. The water outlet end is provided with a water outlet, the water outlet comprises a water collecting branch channel 8 and a water collecting tank 7, and supernatant is uniformly collected and discharged out of the sedimentation tank 1. The form of the water collecting tank 7 adopts an overflow type sawtooth-shaped triangular weir mechanism 6, the water quality of the effluent is improved by adopting the load on a lower effluent weir, and the load on the effluent weir of the secondary sedimentation tank is not more than 1.7L/s.m. The sludge discharge channel 9 is arranged on two sides of the top of the sedimentation area of the sedimentation tank 1, the sludge discharge valve 5 is uniformly arranged in the sludge discharge channel 9, sludge discharged from the sedimentation area is collected, and sludge backflow and residual sludge discharge are carried out. This energy-conserving sedimentation tank sets up to the mud system of discharging of many fountains, and sludge bucket 4 evenly arranges in 1 bottom of sedimentation tank along 1 pond length in sedimentation tank, and sludge bucket 4 adopts trapezoidal section pattern, and sludge bucket 4's skew wall should not be less than 60 with the inclination of horizontal plane, and sludge bucket 4 sets up to one row or two rows, and every blowdown mud bucket 4 sets up to 4, collects the bottom of the pool mud segmentation. Each sludge bucket 4 is provided with a separate sludge discharge valve 5 and a sludge discharge pipe 10, the sludge discharge pipe 10 is inserted into the sludge bucket 4, the sludge discharge pipe 10 is connected with the sludge bucket 4 and the sludge discharge valve 5, and the sludge discharge valve 5 adopts a sleeve valve, so that the structure is simple and the work is reliable; the opening degree is adjustable, and different sludge discharge amounts are realized; and an electric hoist is arranged to realize automatic control. The multi-bucket sludge discharge system of the energy-saving sedimentation tank replaces a traditional chain type sludge scraper, so that the investment and the operating cost are saved, and the overhaul is convenient.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims (8)

1. The utility model provides an energy-conserving sedimentation tank, adopts week to advance week and go out rectangle sedimentation tank, characterized by: the energy-saving sedimentation tank adopts a multi-bucket type horizontal sedimentation tank, and comprises a sedimentation tank (1), a water inlet end, a water outlet end, a sludge hopper (4), a sludge discharge valve (5), a sludge discharge channel (9) and a sludge discharge pipe (10); the water inlet end and the water outlet end are respectively arranged at the top of the sedimentation tank (1) and at the two ends of the sedimentation tank (1) in the tank length direction; the water inlet end adopts a combination form of a submerged hole and a flow baffle plate (3), the water inlet end is provided with a water inlet and comprises a water inlet groove (2) arranged at the inlet of the sedimentation tank (1) and a plurality of water distribution holes uniformly arranged at the bottom of the water inlet groove (2), and the flow baffle plate (3) is arranged at the front end of the sedimentation tank (1); the water outlet end is provided with a water outlet, and the water outlet comprises a water collecting branch channel (8) and a water collecting tank (7); the sludge discharge channels (9) are arranged at two sides of the top of the sedimentation area of the sedimentation tank (1), and sludge discharge valves (5) are uniformly arranged in the sludge discharge channels (9); sludge bucket (4) are evenly arranged at the bottom of sedimentation tank (1) along the length of sedimentation tank (1), each sludge bucket (4) is provided with independent sludge discharge valve (5) and sludge discharge pipe (10), sludge discharge pipe (10) is inserted into sludge bucket (4), and sludge bucket (4) and sludge discharge valve (5) are connected to sludge discharge pipe (10).

2. The energy-saving sedimentation tank as claimed in claim 1, wherein: the sedimentation tank (1) comprises a tank body and a sedimentation area, and the plane of the tank body is rectangular.

3. The energy-saving sedimentation tank as claimed in claim 1, wherein: the flow baffle (3) is in a straight plate form, the installation position is 0.5-1.0 m away from the water inlet, and the installation angle is 90 degrees.

4. The energy-saving sedimentation tank as claimed in claim 1, wherein: the water collecting tank (7) adopts an overflow type sawtooth-shaped triangular weir mechanism (6).

5. The energy-saving sedimentation tank as claimed in claim 1, wherein: the sludge bucket (4) adopts a trapezoidal section type, and the inclination angle between the inclined wall of the sludge bucket (4) and the horizontal plane is not less than 60 degrees.

6. The energy-saving sedimentation tank as claimed in claim 1, wherein: the sludge hoppers (4) are arranged in one row or two rows.

7. The energy-saving sedimentation tank as claimed in claim 1, wherein: the mud valve (5) adopts a sleeve valve.

8. The energy-saving sedimentation tank as claimed in claim 1, wherein: the energy-saving sedimentation tank is provided with an electric hoist.

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