CN213012178U

CN213012178U - Shaft type decanter

Info

Publication number: CN213012178U
Application number: CN202021418355.XU
Authority: CN
Inventors: 刘严; 刘丽; 刘浩
Original assignee: Henan Zhonglan Environmental Protection Engineering Co ltd
Current assignee: Zhonglan Environmental Protection Co ltd
Priority date: 2020-07-18
Filing date: 2020-07-18
Publication date: 2021-04-20
Anticipated expiration: 2030-07-18

Abstract

The utility model relates to a pit shaft formula decanter, including the flotation pontoon, the flotation pontoon passes through the guide arm setting on the SBR reactor, and the water through-hole has been seted up at the barrel head of flotation pontoon, and the barrel head of flotation pontoon is provided with the apron, and the apron covers water through-hole. The utility model has the advantages of simple structure, low power demand, and is more suitable for being applied to small-size SBR reactor.

Description

Shaft type decanter

Technical Field

The utility model belongs to the sewage treatment device field, concretely relates to pit shaft type decanter.

Background

The decanter is one of the key devices in the Sequencing Batch Reactor (SBR) process, and has the function of quickly decanting clear water from a static pool surface, simultaneously causing no disturbance to sludge in a reactor and ensuring the effluent quality. .

At present, the commonly used decanters can be roughly classified into three types, i.e., mechanical lift type, siphon type and floating type, and these decanters are often used for treating municipal sewage and industrial wastewater. The method is widely applied to the treatment of industrial wastewater (waste liquid) in industries such as papermaking, alcohol, dye, pesticide, leather, viscose, monosodium glutamate, sugar and the like.

In the aspect of rural sewage treatment, a small SBR reactor is more preferable than a large SBR reactor, and the three water decanters are more suitable for large and medium SBR reactors and have the problems of large size, complex structure, high manufacturing cost, high power requirement and the like when being applied to the small SBR reactor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a pit shaft formula decanter, it compares in general big-and-middle-sized decanter, and it has simple structure, advantage that the power demand is low, more is fit for being applied to small-size SBR reactor.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a shaft type decanter comprises a buoy and is characterized in that: the flotation pontoon passes through the guide arm setting on SBR reactor, and water through-hole has been seted up at the barrel head of flotation pontoon, and the barrel head of flotation pontoon is provided with the apron, and the apron covers water through-hole.

As a further aspect of the present invention: the cover plate is hinged with the barrel bottom of the floating barrel through a hinge, the sectional area of the cover plate is larger than that of the water passing through hole, and the cover plate completely covers the water passing through hole.

As a further aspect of the present invention: the floating cylinder is provided with a buoyancy device through a connecting rod, and the buoyancy device is close to the cylinder opening of the floating cylinder.

As a further aspect of the present invention: the vertical setting of guide arm is on the SBR reactor, be provided with the connection ring on the lateral wall of flotation pontoon, connect the ring cover and establish on the guide arm, the flotation pontoon passes through connect ring and guide arm sliding connection.

As a further aspect of the present invention: a water outlet hose is arranged on the side wall of the float bowl, and one end, close to the float bowl, of the water outlet hose is communicated with the float bowl and is close to the bottom of the float bowl.

As a further aspect of the present invention: the one end that the flotation pontoon was kept away from to the play water hose stretches out SBR reactor, installs the drainage control valve on the play water hose, and drainage control valve sets up in SBR reactor outside.

As a further aspect of the present invention: the buoyancy device is a hollow closed buoyancy tank, the water outlet hose is a steel wire hose, and the drainage control valve is an automatic control valve.

To sum up, the utility model discloses a beneficial technological effect does:

1. in the decanting stage, the cover plate does not cover the water through hole, the supernatant in the SBR reactor can conveniently flow into the floating barrel through the water through hole, and the supernatant is discharged out of the SBR reactor through the water outlet hose, so that the clear water is discharged;

2. in the aeration stage, the water through hole can be covered by the cover plate, so that the rolled sewage can not enter the buoy from the water through hole, and the cleanness of the water in the buoy is kept.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure, 1, a buoy; 11. connecting the circular rings; 2. a guide bar; 12. a water passing through hole; 3. a cover plate; 4. a hinge; 5. a connecting rod; 6. a buoyancy device; 7. a water outlet hose; 8. and a water discharge control valve.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the shaft type decanter comprises a buoy 1, wherein two connecting rings 11 are fixed on the side wall of the buoy 1, and the two connecting rings 11 are vertically distributed and are correspondingly communicated. A guide rod 2 which is vertically arranged is fixed in the SBR reactor, the buoy 1 is connected on the guide rod 2 through two connecting circular rings 11 in a sliding way, and the two connecting circular rings 11 are all sleeved on the guide rod 2. The float 1 can slide along the length direction of the guide rod 2 when floating up and down in the SBR reactor.

The barrel bottom of flotation pontoon 1 is seted up and is crossed water through-hole 12, and the barrel bottom of flotation pontoon 1 is provided with apron 3, and the sectional area of apron 3 is greater than the sectional area of crossing water through-hole 12, and water through-hole 12 is crossed to apron 3 complete cover. A hinge 4 is arranged between the cover plate 3 and the cylinder bottom of the buoy 1, and the cover plate 3 is hinged with the cylinder bottom of the buoy 1 through the hinge 4.

Two connecting rods 5 are fixed on the inner wall of the float 1, the two connecting rods 5 are arranged on two sides of the central shaft of the float 1, and a buoyancy device 6 is fixedly connected between the two connecting rods 5. The buoyancy device 6 is selected to be a hollow closed buoyancy tank, and the buoyancy device 6 is arranged in the buoy 1 and close to the opening end of the buoy 1.

A water outlet hose 7 is fixed on the side wall of the buoy 1, and the water outlet hose 7 is selected as a steel wire hose. One end of the water outlet hose 7 close to the buoy 1 is communicated with the buoy 1 and close to the bottom of the buoy 1. One end of the water outlet hose 7, which is far away from the buoy 1, extends out of the SBR reactor, a water discharge control valve 8 is installed on the water outlet hose 7, and the water discharge control valve 8 is selected as an automatic control valve. A drain control valve 8 is provided outside the SBR reactor.

The implementation principle of the embodiment is as follows: when people use the utility model to treat sewage in the SBR reactor, after the SBR reactor finishes a period of operation, the drainage control valve 8 is closed, liquid outside the decanter supports the cover plate 3 and passes through the water through hole 12 to enter the pontoon 1, and finally the height of the inner liquid surface and the outer liquid surface of the pontoon 1 is equal, buoyancy received by the decanter is mainly provided by the buoyancy device 6, at the moment, the water pressure on the upper side and the lower side of the cover plate 3 is basically the same, the cover plate covers the bottom plate of the pontoon 1 under the action of self gravity and covers the water through hole 12, and then the SBR reactor enters the next operation period;

in the water inlet stage of the utility model, the utility model can float on the liquid level under the action of the buoyancy device 6 and can reach a balanced state, and the utility model in the balanced state can rise along with the rise of the liquid level in the SBR reactor;

in the aeration stage, as the cover plate 3 covers the water through hole 12 of the decanter, the overturned sewage cannot enter the decanter buoy 1, and after standing and precipitation, mud-water separation meets the requirements, the sewage enters the decanting stage;

in the decanting stage, the water discharge control valve 8 is opened, the liquid reserved in the float bowl 1 is firstly discharged through the water outlet hose 7, the liquid level in the float bowl 1 is reduced, the pressure of the water in the float bowl 1 on the buoyancy device 6 is reduced, the balance state of the utility model is broken, in order to reach a new balance state, not only the float bowl 1 is lifted in the SBR reactor, but also the cover plate 3 which is originally kept in the balance state in the float bowl 1 is in a negative pressure state due to the reduction of the water in the float bowl 1, at the moment, in order to reach the new balance state, the cover plate 3 in the negative pressure state is lifted along the hinge 4, the water through hole 12 is opened, the clear water in the SBR reactor enters the float bowl 1 from the water through hole 12 and finally reaches a new balance state, when the water in the float bowl 1 is continuously discharged out of the SBR reactor through the water outlet hose 7, the process for reaching the new balance state is also continued all the time, and when the clear water in the SBR is discharged to a certain degree, the water discharge control valve 8 is closed, and the SBR finishes the operation of one period.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A shaft type decanter, comprising a pontoon (1), characterized in that: buoy (1) sets up on the SBR reactor through guide arm (2), and water through-hole (12) have been seted up at the barrel head of buoy (1), and the barrel head of buoy (1) is provided with apron (3), and apron (3) cover water through-hole (12).

2. A wellbore decanter as claimed in claim 1, wherein: the cover plate (3) is hinged with the bottom of the floating barrel (1) through a hinge (4), the sectional area of the cover plate (3) is larger than that of the water passing through hole (12), and the cover plate (3) completely covers the water passing through hole (12).

3. A wellbore decanter as claimed in claim 1, wherein: a buoyancy device (6) is arranged in the buoy (1) through a connecting rod (5), and the buoyancy device (6) is close to the opening of the buoy (1).

4. A wellbore decanter as claimed in claim 1, wherein: guide arm (2) is vertical to be set up on the SBR reactor, be provided with on the lateral wall of flotation pontoon (1) and connect ring (11), connect ring (11) cover and establish on guide arm (2), flotation pontoon (1) passes through connect ring (11) and guide arm (2) sliding connection.

5. A wellbore decanter as claimed in claim 3, wherein: the side wall of the buoy (1) is provided with a water outlet hose (7), and one end, close to the buoy (1), of the water outlet hose (7) is communicated with the buoy (1) and is close to the bottom of the buoy (1).

6. A wellbore decanter as claimed in claim 5, wherein: the SBR reactor is stretched out to the one end that flotation pontoon (1) was kept away from in play water hose (7), installs on play water hose (7) drainage control valve (8), and drainage control valve (8) set up in the SBR reactor outside.

7. A wellbore decanter as claimed in claim 6, wherein: the buoyancy device (6) is a hollow closed buoyancy tank, the water outlet hose (7) is a steel wire hose, and the water drainage control valve (8) is an automatic control valve.