CN210974052U

CN210974052U - Coking wastewater treatment defoaming device

Info

Publication number: CN210974052U
Application number: CN201921621919.7U
Authority: CN
Inventors: 蔡小斌
Original assignee: Inner Mongolia Huanghe Industry And Trade Group Qianlishan Coal Coking Co ltd
Current assignee: Inner Mongolia Huanghe Industry And Trade Group Qianlishan Coal Coking Co ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-07-10
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a foam removing device for coking wastewater treatment, which comprises an aerobic tank and an inlet pipe and an outlet pipe which are arranged on the aerobic tank, wherein the center of the aerobic tank is fixed with a central rod, the two sides of the central rod are symmetrically fixed with exhaust pipes, the lower sides of the end parts of the two exhaust pipes are communicated and fixed through a connecting pipe, the outer side of the top edge of the aerobic tank is fixed with an outer cofferdam, the outer cofferdam and the top edge of the aerobic tank form an annular foam removing area, the upper part of the outer cofferdam is slidably connected with a groove type moving frame which is matched with the outer cofferdam, the utility model arranges the exhaust pipe for blowing foam in the center of the aerobic tank, blows the foam in the wastewater into the annular foam removing area formed by the outer cofferdam of the aerobic tank, and removes the foam in the annular foam removing area under the movement of the groove type moving frame, thus, not only the foam in the aerobic tank is efficiently treated, but also, the environment of the sewage treatment plant area is protected.

Description

Coking wastewater treatment defoaming device

Technical Field

The utility model relates to a coking water treatment field, concretely relates to coking wastewater handles defoaming device.

Background

The coking wastewater mainly comprises water in coking coal, wastewater formed in a coal gas purification process, and wastewater generated in tar and crude benzene processing.

At present, the domestic coking wastewater treatment technology is mainly a biological treatment process, namely, after ammonia distillation, heavy oil removal and air flotation pretreatment, anaerobic and aerobic biological treatment is carried out, and part of systems are connected with subsequent physicochemical advanced treatment. In the aerobic biological treatment process, because oxygen supply is carried out for aerobic organisms, and a large amount of foam is generated in an aerobic tank, the common method is to spray defoaming water on the surface of the aerobic tank to eliminate the foam or utilize a defoaming agent to eliminate the foam, but the defoaming effect is poor, so that the treatment effect is influenced, sometimes the foam overflows the aerobic tank or is blown out by wind, and partial sludge is brought out, and the foam is adhered to the wall and the ground of the tank, so that the environment of a sewage treatment plant area is influenced.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model provides a coking wastewater treatment defoaming device.

The utility model discloses a realize through following technical scheme:

a coking wastewater treatment defoaming device, which comprises an aerobic tank, an inlet pipe and an outlet pipe arranged on the aerobic tank, a central rod is fixed in the center of the aerobic tank, exhaust pipes are symmetrically fixed on two sides of the central rod, the lower sides of the end parts of the two exhaust pipes are communicated and fixed through a connecting pipe, an outer cofferdam is fixed at the outer side of the top edge of the aerobic tank, an annular defoaming area is formed by the outer cofferdam and the top edge of the aerobic tank, the upper part of the outer cofferdam is connected with a groove-shaped moving frame matched with the outer cofferdam in a sliding way, the top of the groove-shaped moving frame is provided with two driving holes, a supporting wheel for supporting is arranged in each driving hole, a driving motor which is arranged on the groove type moving frame and is used for driving the groove type moving frame is arranged at the outer side of one of the supporting wheels, the inner side of the groove-shaped moving frame is fixedly provided with a hanging frame, and the lower part of the hanging frame is fixedly provided with a plurality of foam scraping sheets for removing foam.

Preferably, the center of the connecting pipe is communicated and fixed with one end of the air inlet pipe, and the other end of the air inlet pipe extends to the external air source of the aerobic tank to be connected.

Preferably, a plurality of air blowing openings are uniformly formed in the side end of the exhaust pipe.

Preferably, overflow notches are formed in two sides of the edge, which faces the exhaust pipe, of the top of the aerobic tank.

Preferably, the inlet pipe and the outlet pipe are both provided with a switch valve.

Preferably, a plurality of embedded grooves are formed in two sides of the inner portion of the groove-shaped moving frame, and a rolling body used for rolling is arranged in each embedded groove.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a central authorities at good oxygen pond set up the blast pipe that is used for blowing off the foam, blow off the foam in the waste water in the annular defoaming district that the outer cofferdam of good oxygen pond outside formed to the foam in annular defoaming district is disposed under the removal of cell type removal frame, has so both carried out the efficient to the foam in the good oxygen pond and has handled, has effectually prevented spilling over of foam again, has protected the environment in sewage treatment factory.

Drawings

Fig. 1 is a perspective view of the structure of the present invention;

FIG. 2 is another perspective view of FIG. 1;

FIG. 3 is a schematic enlarged view of a portion of the structure of FIG. 2;

FIG. 4 is a schematic diagram of the structure of the components of the present invention;

in the figure: the aerobic tank comprises an aerobic tank 1, an inlet pipe 2, an outlet pipe 3, an overflow notch 4, a central rod 5, an exhaust pipe 6, an air blowing port 61, a connecting pipe 7, an air inlet pipe 8, a switch valve 9, a peripheral weir 10, an annular defoaming region 11, a groove-shaped moving frame 12, a rolling body 121, a driving hole 122, a hanging frame 13, a foam scraping sheet 14, a supporting wheel 15 and a driving motor 16.

Detailed Description

The invention will be described in further detail with reference to the following detailed description and accompanying drawings:

as shown in fig. 1, 2, 3 and 4, a coking wastewater treatment defoaming device comprises an aerobic tank 1 and an inlet pipe 2 and an outlet pipe 3 arranged therein, wherein a central rod 5 is fixed at the center of the aerobic tank 1, exhaust pipes 6 are symmetrically fixed on both sides of the central rod 5, the lower sides of the ends of the two exhaust pipes 6 are fixedly communicated with each other through a connecting pipe 7, a peripheral weir 10 is fixed on the outer side of the top edge of the aerobic tank 1, an annular defoaming area 11 is formed by the outer cofferdam 10 and the top edge of the aerobic tank 1, a groove-shaped movable frame 12 matched with the outer cofferdam 10 is slidably connected to the upper portion of the outer cofferdam 10, two driving holes 122 are formed in the top of the groove-shaped movable frame 12, a supporting wheel 15 for supporting is installed in each driving hole 122, a driving motor 16 for driving one supporting wheel 15 on the groove-shaped movable frame 12 is arranged on the outer side of the supporting, a hanging rack 13 is fixed on the inner side of the groove-shaped moving rack 12, and a plurality of foam scraping blades 14 for removing foam are fixed on the lower portion of the hanging rack 13.

The center of the connecting pipe 7 is communicated and fixed with one end of an air inlet pipe 8, and the other end of the air inlet pipe 8 extends to the outside of the aerobic tank 1 to be connected with an air source.

A plurality of air blowing openings 61 are uniformly formed at the side end of the exhaust pipe 6.

And overflow notches 4 are formed in two sides of the edge of the top of the aerobic tank 1, which is opposite to the exhaust pipe 6.

And the air inlet pipe 8 and the outlet pipe 3 are both provided with a switch valve 9.

A plurality of embedded grooves are formed in two sides of the inner part of the groove-shaped moving frame 12, and a rolling body 121 for rolling is arranged in each embedded groove.

The working principle is as follows: when the utility model is used, wastewater enters the aerobic tank 1 from the inlet pipe 2 for aeration treatment, the height difference of 2cm-3cm is kept between the water surface and the overflow notch 4 when wastewater is injected, foam generated during aeration is positioned on the upper part of the wastewater, the switch valve 9 on the air source inlet pipe 8 is opened, compressed air enters the exhaust pipes 6 on both sides through the connecting pipe 7 and is discharged from the air blowing port 61, the foam on the wastewater is blown away to the edge of the overflow notch 4 by the gas discharged from the air blowing port 61, the foam can be discharged to the annular foam removing area 11 from the overflow notch 4 to be collected when reaching a certain amount, thus, the foam generated by the wastewater in the aerobic tank 1 can be collected by the annular foam removing area 11 formed by the peripheral weir 10, the driving motor 16 is started, the driving motor 16 drives the supporting wheel 15 to rotate, the bottom of the supporting wheel 15 and the top of the peripheral weir 10 support to drive the groove-shaped moving frame 12 to, do the circulation along outer cofferdam 10 and remove, be provided with rolling element 121 in cell type removal frame 12 inboard, can effectually prevent that cell type removal frame 12 from rocking, guarantee its stability of operation, cell type removal frame 12 removes the in-process at the removal, can drive the foam scraping piece 14 of stores pylon 13 lower part and carry out mechanical defoaming to the foam in annular defoaming district 11, has both carried out the efficient processing to the foam in aerobic tank 1 like this, has effectually prevented overflowing of foam again, has protected the environment in sewage treatment plant district.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a coking wastewater treatment defoaming device, is including good oxygen pond (1) and import pipe (2), outlet pipe (3) that set up, its characterized in that: the central authorities of good oxygen pond (1) are fixed with well core rod (5), the bilateral symmetry of well core rod (5) is fixed with blast pipe (6), two the tip downside of blast pipe (6) is fixed through connecting pipe (7) intercommunication, the top edge outside of good oxygen pond (1) is fixed with outer cofferdam (10), outer cofferdam (10) and good oxygen pond (1) top edge form annular except that foam district (11), the upper portion sliding connection of outer cofferdam (10) has slot type removal frame (12) rather than matching, open at the top of slot type removal frame (12) has two drive holes (122), install a supporting wheel (15) that is used for supporting in drive hole (122), one of them the outside of supporting wheel (15) is provided with on slot type removal frame (12) and is used for driving its driving motor (16), the inboard of slot type removal frame (12) is fixed with stores pylon (13), a plurality of foam scraping sheets (14) for removing foam are fixed at the lower part of the hanging rack (13).

2. The coking wastewater treatment defoaming device of claim 1, which is characterized in that: the center of the connecting pipe (7) is communicated and fixed with one end of the air inlet pipe (8), and the other end of the air inlet pipe (8) extends to the outside air source of the aerobic tank (1) to be connected.

3. The coking wastewater treatment defoaming device of claim 1, which is characterized in that: a plurality of air blowing openings (61) are uniformly formed at the side end of the exhaust pipe (6).

4. The coking wastewater treatment defoaming device of claim 1, which is characterized in that: and overflow notches (4) are formed in two sides of the edge of the top of the aerobic tank (1) opposite to the exhaust pipe (6).

5. The coking wastewater treatment defoaming device of claim 2, which is characterized in that: and the air inlet pipe (8) and the outlet pipe (3) are both provided with a switch valve (9).

6. The coking wastewater treatment defoaming device of claim 1, which is characterized in that: a plurality of embedded grooves are formed in two sides of the inner portion of the groove-shaped moving frame (12), and a rolling body (121) used for rolling is arranged in each embedded groove.