CN214551411U

CN214551411U - Composite efficient sedimentation tank with mechanical sludge discharge function

Info

Publication number: CN214551411U
Application number: CN202120576162.5U
Authority: CN
Inventors: 彭吉成
Original assignee: Shandong Huanfa Science And Technology Co ltd
Current assignee: Shandong Huanfa Science And Technology Co ltd
Priority date: 2021-03-22
Filing date: 2021-03-22
Publication date: 2021-11-02
Anticipated expiration: 2031-03-22

Abstract

The utility model relates to a composite high-efficiency sedimentation tank with mechanical sludge discharge, which comprises a natural sedimentation zone I and a sedimentation zone II, wherein the natural sedimentation zone I is provided with a water inlet pipe which is connected with a water distribution zone, and the water distribution zone is provided with a guide wall; a mud bucket is arranged below the natural settling area I, and is provided with a mud pipe; a mud-water separation device is arranged above the sedimentation area II and comprises a support frame, and a filler is arranged above the support frame; the settling zone II is provided with a mechanical sludge discharge device, and the mechanical sludge discharge device comprises a bracket, a bracket lifting device, a sludge scraper and a motor; and the sedimentation zone II is provided with a water outlet groove, the water outlet groove is connected with a water drainage groove, and the water drainage groove is provided with a water outlet and a water drainage pipe. The utility model discloses the treatment effeciency is high, and precipitation effect is good, and the sedimentation tank is intake and is held not to exist because of the problem of collapsing that the filler blockked up and causes, and the system operation is stable.

Description

Composite efficient sedimentation tank with mechanical sludge discharge function

Technical Field

The utility model relates to an environmental protection water treatment purifies technical field, concretely relates to compound high-efficient sedimentation tank with machinery row's mud.

Background

Along with the continuous reinforcing of country and local to the management and control dynamics of environmental protection improvement, sewage discharge standard is constantly stricter, and is also more and more strict to the requirement of going out the water suspended solid, seeks the sedimentation tank that the settling property is good and becomes inevitable trend. The common sedimentation tank has a low surface load design value for improving the effluent quality, but increases the floor area of the sedimentation tank, has high cost, is not beneficial to saving cost for enterprises, and has the problems of unstable effluent quality, floating sludge and the like. The conventional inclined tube sedimentation tank has poor impact load resistance, the sludge on the filler at the water inlet end of the sedimentation tank is seriously blocked, and the problem of filler collapse is very easy to occur, so that the system cannot normally run.

In addition, the applicant of the present invention earlier stage patent document CN 211133101U discloses a sedimentation tank with a mechanical sludge discharge device, comprising a sedimentation tank main body, wherein the sedimentation tank main body is provided with the mechanical sludge discharge device, and the mechanical sludge discharge device comprises a sludge scraper located at the bottom of the sedimentation tank main body and a motor connected through a transmission shaft; a mud-water separation device is further arranged at the part, located above the mud scraper, in the sedimentation tank main body, and comprises a support frame, and a filler is arranged on the support frame; a water outlet groove is formed in the side wall of the sedimentation tank body, a water drainage groove is formed above the mud-water separation device and is connected with the water outlet groove, and a water outlet is formed in the water outlet groove; the sedimentation tank main part still includes water installations, and water installations includes the inlet tube, and the inlet tube passes through a central section of thick bamboo and is connected with mud-water separation device. However, the filler in the sedimentation tank is filled with the filler from the front end to the rear end, and the problem that the filler collapses due to serious sludge blockage on the filler at the front end of the sedimentation tank caused by larger kinetic energy of water and higher sludge concentration in the use process is found, so that the effluent SS rises, and the system operation is seriously influenced by the collapse of the filler.

Chinese patent document CN 211836472U discloses an improved generation swash plate settling basin cleaning device, including locating the cleaning device and the brush device that are used for going on clearing up the swash plate bottom and top respectively, with the intake pipe that cleaning device connects, cleaning device including respectively with a plurality of branch pipes of intake-tube connection, every all be equipped with a plurality of gas outlets or blast pipes on the branch pipe, the high-pressure gas that the intake pipe let in passes through gas outlet or blast pipe discharge, thereby rise in order to wash away vibrations and swash plate separation with long-pending mud on the swash plate with the form of bubble in aqueous, thereby the brush device passes through slide mechanism slidable and sets up on the settling basin for clear up long-pending mud that falls on the swash plate. However, the device needs to be provided with a blowing device, an air inlet pipe and a plurality of branch pipes connected with the air inlet pipe on the system, each branch pipe is provided with a plurality of air outlets or air outlet pipes, high-pressure gas introduced into the air inlet pipe is discharged through the air outlets or the air outlet pipes, and a brush device is added. Air blast device mechanism is complicated, need arrange air compression equipment and a plurality of business turn over trachea, and equipment cost increases, and the management is maintained comparatively complicatedly to ventilate and brush slip during operation can cause a water SS to increase, influence the play water effect.

Disclosure of Invention

Not enough to prior art, the utility model provides a compound high-efficient sedimentation tank with mud is arranged to machinery to solve out uneven, the mud come-up of water quality, pack and block up and collapse the scheduling problem, be applicable to and handle the big water yield (≧ 2000 m)³The waste water of the/d).

The technical scheme of the utility model as follows:

a composite high-efficiency sedimentation tank with mechanical sludge discharge comprises a natural sedimentation area I and a sedimentation area II, wherein the natural sedimentation area I is communicated with the sedimentation area II through a water wall;

the natural settling zone I is provided with a water inlet device and a water distribution area connected with the water inlet device, the water inlet device is provided with a water inlet pipe, the water distribution area is provided with a flow guide wall, and the flow guide wall is provided with an opening; a mud bucket is arranged below the natural settling area I, and is provided with a mud pipe;

a mud-water separation device is arranged above the sedimentation zone II and comprises a support frame, a filler is arranged above the support frame, a water outlet groove is arranged above the filler and connected with a drainage groove, the drainage groove is provided with a drainage port, and the drainage port is provided with a drainage pipe;

settling zone II be provided with mechanical mud discharging device, mechanical mud discharging device include transmission, support lifting device, mud scraper and motor, the mud scraper set up and be connected with mechanical mud discharging device's rack device in settling zone II bottom and through support and support lifting device, the motor setting in settling zone II top and be connected with transmission, guarantee that mechanical mud discharging device moves.

According to the utility model discloses, preferably, natural sedimentation district I length be less than or equal to half of sedimentation tank body total length.

According to the utility model discloses, it is preferred, the trompil of guiding wall evenly set up, the trompil can be round hole or square hole, the total area of trompil is 0.5 thousandth-20% of guiding wall area. Water flow uniformly enters the natural sedimentation area I through the open pores and is naturally settled, mud and water are separated, sludge falls into the mud bucket, and the water flow enters the sedimentation area II through the water passing wall and is settled again through the filler.

According to the utility model, preferably, the filler is an inclined plate filler or an inclined tube filler; further preferably, the inclination angle of the filler is 45-78 degrees, the vertical height of the filler is 200-1800 mm, and the filler can be selected from polypropylene, polyvinyl chloride, stainless steel or glass fiber reinforced plastic.

According to the utility model discloses, it is preferred, the motor be provided with the reducing gear box for keep the steady operation of motor. The motor controls the mechanical mud discharging device to move. Preferably, the bracket lifting device is provided with a power device.

According to the utility model discloses, it is preferred, the vertical distance of scraper top apart from filler support frame bottom be 200 ~ 30000 mm.

According to the utility model discloses, preferably, the basin be single basin or two and the basin of play more than two.

According to the utility model discloses, it is preferred, the water drainage tank set up on the inside wall or the lateral wall of sedimentation zone II.

According to the utility model discloses, preferably, the lateral wall inclination of bagger be 30-90.

The present invention is not specified in detail, all according to the prior art in the field.

When the composite efficient sedimentation tank with mechanical sludge discharge is used for treating wastewater, the wastewater enters a water distribution area through a water inlet pipe, uniformly enters a natural sedimentation area I through openings formed in a flow guide wall for primary sedimentation, and sludge enters a sludge hopper; the wastewater after primary sedimentation enters a sedimentation area II through a water wall, sedimentation is carried out again through the built-in filler, water flows upwards along the filler, the separated sludge slides downwards to the bottom of the sedimentation tank along the filler under the action of gravity, the sludge at the bottom is collected into a mud bucket through a mud scraping plate, and the sludge in the mud bucket is discharged under self-pressure through a mud discharge pipe; the treated wastewater is converged into a drainage tank through a water outlet tank and is discharged out of the system through a drainage pipe arranged in the drainage tank.

The utility model has the advantages that:

1. the utility model discloses combined the advantage of vertical sedimentation tank and swash plate or pipe chute sedimentation tank, made aquatic suspended impurity carry out gravity through natural settling zone I earlier and deposit, mud-water separation, mud falls into the bagger, rivers get into settling zone II and deposit once more through swash plate or pipe chute through the waterwall, water rises along swash plate or pipe chute and flows, and the mud of separating is in the gravity action down to the sedimentation tank bottom along swash plate or pipe chute, collects to the bagger in through mechanical mud discharging device. The utility model discloses compare with conventional sedimentation tank, can improve precipitation efficiency 50 ~ 60% to control the aquatic suspended solid of system's play water to 5 ~ 30mg/L, the treatment effeciency is high, and precipitation effect is good.

2. The utility model discloses a mud among the bagger passes through mud pipe autogenous pressure discharge, can realize continuous even discharge, can not cause mud to pile up the problem, guarantees that the system operation is stable.

3. The utility model discloses through special design, avoided conventional pipe chute sedimentation tank to intake and held the filler because of the filler phenomenon of collapsing that mud blockked up the emergence, the utility model discloses a sedimentation tank shock resistance load capacity is strong, and the system operation is stable.

4. The utility model discloses a sedimentation tank surface load design value improves to 0.6 ~ 4.5 tons of water/square meter/day, and more conventional advection formula and radial flow formula sedimentation tank have saved area greatly, save land resource.

5. The utility model provides a compound high-efficient sedimentation tank with machinery row mud simple structure, convenient operation.

6. The utility model discloses add natural sedimentation district I at the sedimentation tank front end, the kinetic energy that will come water on the one hand carries out the energy dissipation, and on the other hand carries out mud-water separation with the partial SS in the sewage through this region, and all the other muddy water make aquatic mud produce downflow effect under the water wall water conservancy diversion effect, have reduced mud and have advanced the kinetic energy and the quantity of packing, have prevented the jam that the front end was packed, have avoided collapsing of packing, improve the operating stability of system, have prolonged the life of system.

Drawings

Figure 1 is a transverse sectional view of the sedimentation tank of the present invention.

Figure 2 is a longitudinal section view of the settling zone ii of the present invention.

Wherein: 1-water inlet pipe; 2-opening a hole; 3-a guide wall; 4-natural settling zone I; 5-a mechanical sludge discharge device; 6-water outlet groove; 7-a drainage tank; 8-a drain pipe; 9-a filler; 10-a support frame; 11-a precipitation zone II; 12-a stent lifting device; 13-a scaffold; 14-a mud scraper; 15-a mud bucket; 16-a sludge discharge pipe; 17-a motor; 18-a reduction gearbox; 19-water wall.

Detailed Description

The present invention will be further described, but not limited to, by the following examples in conjunction with the accompanying drawings.

Example 1:

a composite high-efficiency sedimentation tank with mechanical sludge discharge comprises a natural sedimentation area I4 and a sedimentation area II 11, wherein the natural sedimentation area I4 is communicated with the sedimentation area II 11 through a water wall 19;

the natural sedimentation zone I4 is provided with a water inlet device and a water distribution area connected with the water inlet device, the water inlet device is provided with a water inlet pipe 1, the water distribution area is provided with a flow guide wall 3, and the flow guide wall 3 is provided with an opening 2; a mud bucket 15 is arranged below the natural settling area I, and a mud discharge pipe 16 is arranged on the mud bucket 15;

a mud-water separation device is arranged above the sedimentation zone II 11, the mud-water separation device comprises a support frame 10, a filler 9 is arranged above the support frame, a water outlet groove 6 is arranged above the filler 9, the water outlet groove 6 is connected with a drainage groove 7, the drainage groove 7 is provided with a drainage port, and the drainage port is provided with a drainage pipe 8;

settling zone II 11 be provided with machinery and arrange mud device 5, machinery arrange mud device 5 and include transmission, support 13, support extraction device 12, mud scraper 14 and motor 17, mud scraper 14 set up and be connected in settling zone II 11 bottom and through support 13 and support extraction device 12 and mechanical rack device who arranges mud device 5, motor 17 set up in settling zone II 11 top and be connected with transmission, guarantee that machinery arranges mud device and moves.

The utility model discloses in, the lateral wall inclination of bagger 15 is 50, bagger 15 in mud accessible mud pipe 16 autogenous pressure discharge. The filler 9 is an inclined plate filler, the inclination angle of the filler 9 is 60 degrees, the vertical height of the filler 9 is 800mm, and the filler 9 is made of polyvinyl chloride. The number of the water outlet grooves 6 is one, and the drainage grooves 7 are arranged on the outer side wall of the sedimentation zone II 11; the vertical distance between the top of the mud scraper 14 and the bottom of the filler support frame 10 is 2000 mm. The openings are round holes, and the total area of the openings is 5% of the area of the flow guide wall. The motor 17 controls the mechanical sludge discharge device 5 to move, and the support lifting device 12 is provided with a power device.

When the composite efficient sedimentation tank with mechanical sludge discharge is used for treating wastewater, the wastewater enters a water distribution area through a water inlet pipe 1, uniformly enters a natural sedimentation area I4 through an opening 2 formed in a flow guide wall 3 for primary sedimentation, and sludge enters a sludge hopper 15; the primarily precipitated wastewater enters a precipitation zone II 11 through a water wall 19, is precipitated again through an internal filler 9, water flows upwards along the filler 9, separated sludge slides downwards to the bottom of the precipitation tank along the filler 9 under the action of gravity, the sludge at the bottom is collected into a sludge hopper 15 through a sludge scraper 14, and the sludge in the sludge hopper 15 is discharged under self-pressure through a sludge discharge pipe 16; the treated wastewater is collected into a drainage tank 7 through a water outlet tank 6 and is discharged out of the system through a drainage pipe 8 arranged on the drainage tank 7.

Example 2:

the utility model provides a compound high-efficient sedimentation tank with machinery row mud, its structure is unanimous as embodiment 1, and the difference is: the filler 9 is an inclined tube filler, the inclination angle of the filler 9 is 60 degrees, the vertical height of the filler 9 is 1000mm, and the filler 9 is made of polypropylene; the vertical distance from the top of the mud scraper 14 to the bottom of the filler support frame 10 is 5000 mm; the side wall of the hopper 15 has an inclination angle of 55 degrees; the water outlet grooves 6 are arranged in two, and the water drainage groove 7 is arranged on the inner side wall of the sedimentation area II 11. The openings are square holes, and the total area of the openings is 10% of the area of the flow guide wall.

Example 3:

the utility model provides a compound high-efficient sedimentation tank with machinery row mud, its structure is unanimous as embodiment 1, and the difference is: the filler 9 is an inclined plate filler, the inclination angle of the filler 9 is 65 degrees, the vertical height of the filler 9 is 1500mm, and the filler 9 is made of glass fiber reinforced plastic; the vertical distance from the top of the mud scraper 14 to the bottom of the filler support frame 10 is 10000 mm; the side wall of the mud bucket 15 has an inclination angle of 60 degrees; four water outlet grooves 6 are arranged. The openings are round holes, and the total area of the openings is 15% of the area of the flow guide wall.

Comparative example 1:

a sedimentation tank with a sludge discharge device is characterized in that sludge and water enter the sedimentation tank through one side, and are separated by gravity; the sludge falls into the bottom of the sedimentation tank, and the sludge at the bottom enters a mud bucket along with the movement of the mud scraper and is discharged; and the wastewater is discharged through an overflow weir at the top of the sedimentation tank, a water collecting tank and a drain pipe. The sedimentation tank is based on the gravity sedimentation effect alone, the sedimentation effect is not as good as that of a shallow layer, the effluent quality is unstable, and the impact load resistance is low.

Comparative example 2:

a radial flow sedimentation tank, muddy water enters the sedimentation tank through a water inlet pipe and a central cylinder, stays in the sedimentation tank for a certain time, and is subjected to muddy water separation under the action of gravity; the sludge sinks to the bottom and is collected and discharged out of the system through a sludge scraper; the wastewater overflows into a water collecting tank through a water outlet weir at the periphery of the sedimentation tank and is discharged. The surface load design value of the sedimentation tank is 0.4-0.6 ton/square meter/day, the treatment efficiency is low, the occupied area is large, and the civil engineering investment is high.

Test example:

the wastewater treatment methods in example 1 and comparative examples 1 to 2 were each subjected to an effect test. The wastewater to be treated is the wastewater after pretreatment, biochemical treatment and advanced oxidation treatment, and the concentration of suspended matters in the wastewater after advanced oxidation treatment is 650 mg/L. The wastewater enters a sedimentation tank for sedimentation, tests are respectively carried out according to the methods in the example 1 and the comparative examples 1-2, and the experimental data are detailed in the table 1.

TABLE 1

As is clear from Table 1, the concentration of suspended solids in effluent was 14mg/L and the quality of effluent was stable in example 1, while the concentration of suspended solids in effluent was 52 to 56mg/L and the quality of effluent was unstable in comparative examples 1 to 2. The data show above the utility model discloses can reduce the concentration value of play water suspended solid, improve the precipitation efficiency of waste water. And simultaneously, the utility model discloses add natural sedimentation district I at the sedimentation tank front end, on the one hand will come the kinetic energy of water and carry out the energy dissipation, on the other hand carries out mud-water separation with the partial SS in the sewage through this region, and all the other muddy water make aquatic mud produce downflow effect under the water wall water conservancy diversion effect, have reduced mud and have advanced the kinetic energy and the quantity of packing, have prevented the jam of front end filler, have avoided collapsing of filler, improve the operating stability of system, have prolonged the life of system.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A composite high-efficiency sedimentation tank with mechanical sludge discharge is characterized by comprising a natural sedimentation area I and a sedimentation area II, wherein the natural sedimentation area I is communicated with the sedimentation area II through a water wall;

2. The composite high-efficiency sedimentation tank with mechanical sludge discharge function as claimed in claim 1, wherein the length of the natural sedimentation zone I is less than or equal to one half of the total length of the sedimentation tank body.

3. The composite high-efficiency sedimentation tank with mechanical sludge discharge function as claimed in claim 1, wherein the opening of the guide wall is a circular hole or a square hole.

4. The composite high-efficiency sedimentation tank with mechanical sludge discharge function as claimed in claim 1, wherein the filler is an inclined plate filler or an inclined tube filler.

5. The composite high-efficiency sedimentation tank with mechanical sludge discharge function according to claim 4, wherein the inclination angle of the inclined plate packing or the inclined tube packing is 45-78 degrees.

6. The composite high-efficiency sedimentation tank with mechanical sludge discharge function as claimed in claim 1, wherein the motor is provided with a reduction gearbox for maintaining stable operation of the motor.

7. The composite high-efficiency sedimentation tank with mechanical sludge discharge function according to claim 1, wherein the vertical distance between the top of the sludge scraping plate and the bottom of the filler support frame is 200-30000 mm.

8. The composite high-efficiency sedimentation tank with mechanical sludge discharge function according to claim 1, wherein the water outlet tank is a single water outlet tank or two or more water outlet tanks.

9. The composite high-efficiency sedimentation tank with mechanical sludge discharge function as claimed in claim 1, wherein the drainage channel is arranged on the inner side wall or the outer side wall of the sedimentation zone II.

10. The composite high efficiency settling pond with mechanical sludge discharge as claimed in claim 1, wherein the side wall of the hopper is inclined at an angle of 30-90 °.