CN209872489U - Biological reaction tank for sewage treatment - Google Patents

Abstract

The utility model relates to a biological reaction pond for sewage treatment, include: the device comprises a biological reaction tank, wherein slide rails are arranged on two sides of the biological reaction tank; the bracket is erected on the biological reaction tank and comprises bracket legs and a cross beam; the two bracket legs are embedded in the slide rails so as to slide in the slide rails; a first motor; fixed on the beam; the first coupling is fixedly connected below the first motor; the stirring shaft is fixedly connected below the first coupler; the stirring blade is fixed on the stirring shaft; the stirring device comprises a first stirring blade and a second stirring blade, wherein the first stirring blade is a plurality of fan-shaped blades; the second stirring blade is a hyperboloid blade. The biological reaction tank of the utility model has better stirring effect, and the biological basic membrane can not be hardened at the sewage surface and is difficult to treat; and whole agitating unit can remove the stirring in the biological reaction pond, and a reaction tank only need one set of agitating unit can, saves the cost.

Description

Biological reaction tank for sewage treatment

Technical Field

The utility model belongs to the technical field of sewage treatment, concretely relates to biological reaction tank for sewage treatment.

Background

In sewage treatment plants, biological reaction tanks are common sewage treatment facilities. The biological reaction tank utilizes activated sludge containing live bacteria, protozoa and other microbial groups to treat sewage; organic matters and toxicants in the sewage are degraded, oxidized or adsorbed by aerobic microorganisms in the sludge, and the microorganisms obtain nutrition and grow and reproduce. After a certain retention time, the excess water continuously flows into a sedimentation tank at one side or the periphery in an overflow mode. In the sedimentation tank, because the aeration and the stirring are not carried out, when the treated clear water is continuously discharged out of the sedimentation tank, active sludge groups are continuously sunk into the bottom of the tank, and when the active sludge groups are accumulated to a certain degree, the sludge is discharged.

In order to generate a large enough adsorption surface as much as possible, microorganisms are generally transplanted on loose biomembrane matrixes floating in sewage, and under the state that a biological reaction tank is not stirred for a long time, the biomembrane matrixes are piled up to form lumps, and a layer of thick hardened blocks is formed on the upper layer of the biological reaction tank, which can not only influence the effective decomposition of toxic substances in the sewage at the lower layer of the biological reaction tank, but also cause the blockage of a filter screen between the biological reaction tank and a sedimentation tank; and the cost of cleaning by using the sewage suction truck is very high.

In order to solve the problems, some stirring devices for sewage treatment are also provided in the prior art, but the general stirring device has the problems of small stirring force and poor stirring effect because the biological reaction tank is relatively deep and contains a large amount of sludge; moreover, since the reaction tank is usually very large and deep, the area in the reaction tank that is driven by one stirrer is limited, and the use of a plurality of stirrers is costly.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem existing in the prior art, the utility model provides a biological reaction tank for sewage treatment.

The to-be-solved technical problem of the utility model is realized through following technical scheme:

a biological reaction tank for sewage treatment comprises:

the device comprises a biological reaction tank, a water tank and a water tank, wherein slide rails are arranged on two sides of the biological reaction tank;

the bracket is erected on the biological reaction tank and comprises bracket legs and a cross beam; the two support legs are embedded in the slide rail so as to slide in the slide rail;

a first motor; fixed on the cross beam;

the first coupling is fixedly connected below the first motor;

the stirring shaft is fixedly connected below the first coupler;

the stirring blade is fixed on the stirring shaft; the stirring device comprises a first stirring blade and a second stirring blade, wherein the first stirring blade is a plurality of fan-shaped blades; the second stirring blade is a hyperboloid blade.

In an embodiment of the present invention, the bottom of the bracket is provided with a pulley, and the pulley is embedded in the slide rail.

In one embodiment of the present invention, the first stirring blade is disposed at a sewage level of the biological reaction tank; the second stirring blade is arranged below the sewage surface of the biological reaction tank.

In an embodiment of the present invention, the beam is further provided with a second motor and a third motor, and the second motor and the third motor are symmetrically disposed on two sides of the first motor; and stirrers are respectively connected below the second motor and the third motor.

In an embodiment of the present invention, a plurality of arc-shaped reinforcing ribs are uniformly disposed on the double curved surface blade.

In an embodiment of the present invention, the stirring blade is further provided with a plurality of water filtering holes.

In one embodiment of the present invention, the agitator includes a plurality of fan blades.

In one embodiment of the present invention, the fan-shaped blades are disposed at the sewage level of the biological reaction tank.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model adopts the upper and lower stirring blades, and the first stirring blade is arranged at the sewage level, so that the biological basal membrane floating on the sewage level of the reaction tank can be well stirred to be dispersed, and the hardening of the biological basal membrane is prevented; the second stirring blade is arranged in the tank body and is in a hyperboloid shape, so that the sludge at the lower part can be well driven to rotate, and the biological matrix and harmful substances in the sewage are fully reacted and adsorbed;

2. the utility model can achieve better stirring effect by arranging the arc-shaped reinforcing ribs on the stirring blades and arranging the filtering holes;

3. the utility model is additionally provided with two stirrers and is arranged at the sewage level, so that the biological basement membrane floating on the sewage level can be fully stirred;

4. the utility model discloses a set up slide rail and pulley, the support can slide in the pulley, and whole agitating unit can remove the stirring in biological reaction pond, and a reaction tank only needs one set the utility model discloses an agitating unit can, save the cost.

Drawings

Fig. 1 is a schematic structural diagram of a biological reaction tank for sewage treatment provided by an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of another biological reaction tank for sewage treatment according to an embodiment of the present invention.

Fig. 3 is a schematic structural diagram of a second stirring blade of a biological reaction tank for sewage treatment according to an embodiment of the present invention.

In the figure, 100, a biological reaction tank; 200. a slide rail; 310. a support leg; 320. a cross beam; 400. a first motor; 410. a second motor; 420. a third motor; 500. a first coupling; 600. a stirring shaft; 700. a first stirring blade; 800. a second stirring blade; 801. reinforcing ribs; 802. and (5) filtering the water.

Detailed Description

The present invention will be described in further detail with reference to specific examples, but the present invention is not limited thereto.

Example 1:

please refer to fig. 1, fig. 1 is a schematic structural diagram of an agitation apparatus for sewage treatment according to an embodiment of the present invention. The biological reaction tank 100 for sewage treatment of the embodiment includes: the biological reaction tank 100, a bracket, a first motor 400, a first coupler 500, a stirring shaft 600 and a stirring blade, wherein,

slide rails 200 are arranged on two sides of the biological reaction tank 100; the biological reaction tank 100 is provided with a support capable of sliding in the sliding rail 200, the support comprises support legs 310 and a cross beam 320, the two support legs 310 are embedded in the sliding rail 200, the lower end of the support leg 310 is provided with a pulley, and the pulley can slide in the sliding rail 200.

A first motor 400 is fixed in the middle of the cross beam 320, a first coupler 500 is fixed below the first motor 400, a coaxial stirring shaft 600 is fixed below the first coupler 500, and two stirring blades, namely a first stirring blade 700 and a second stirring blade 800, are fixed on the stirring shaft 600; the first agitating blade 700 is a plurality of fan-shaped blades; the second agitating blade 800 is a hyperboloid blade.

First stirring vane 700 is fan-shaped blade, and sets up in biological reaction pond 100 sewage level department, can effectively disperse the floated thick biomembrane matrix of sewage level department, more is favorable to making the biomembrane matrix fully react or fully adsorb with the harmful substance in the sewage.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a second stirring blade 800 of a biological reaction tank 100 for sewage treatment according to an embodiment of the present invention. The second stirring vane 800 of this embodiment is the hyperboloid blade, evenly is provided with a plurality of arc strengthening ribs 801 on the hyperboloid blade, in addition, still is provided with a plurality of drainage holes 802 on the hyperboloid blade, can make stirring in-process sewage link up from top to bottom at stirring vane, makes the stirring effect more even.

The hyperboloid blade of this embodiment sets up in the deeper position under the sewage surface, and the structural feature of hyperboloid blade can drive sewage in the reaction tank and stir by a wide margin. Because the hyperboloid stirring blade has unique impeller structure design, the fluid characteristic and the mechanical movement are combined to the maximum extent; the hyperbolic equation is a curved surface body formed by rotating a curve xy ═ b along the y axis; in order to cater to the flow of a water body, water is fed from the center of the impeller, so that on one hand, the water inlet turbulence is reduced, and on the other hand, the uniform pressure of liquid on the surface of the impeller is ensured, and the balance of the whole machine in a motion state is ensured. Eight guide vanes are evenly distributed on the involute double cambered surfaces, the potential energy obtained by supplementing water by means of the self-weight pressure of liquid and the centrifugal force generated when the impeller rotates form kinetic energy, the liquid makes tangential motion along the circumferential direction of the impeller through the transition of a hyperboloid structure under the action of gravity acceleration, and circulating water flow from top to bottom is formed under the reflection action of the pool wall, so that the crossed water flow in the axial direction (y) and the radial direction (x) can be obtained. Due to the structural characteristics of the impeller of the vertical impeller mixer and the characteristic of being installed close to the bottom of the tank, the working position of the impeller determines that the impeller has direct anti-sedimentation effect on suspended matters, so that an ideal stirring effect can be obtained in the working process, and the stirring dead angle can be effectively eliminated.

The utility model discloses a use biological reaction pond 100 in the effluent water sump, through setting up slide rail 200 and pulley, the support can slide in the pulley, and whole agitating unit can remove the stirring in biological reaction pond 100, and a reaction tank only needs one set the utility model discloses an agitating unit can, save the cost.

Example 2:

referring to fig. 2, fig. 2 is a schematic structural diagram of another biological reaction tank 100 for sewage treatment according to an embodiment of the present invention. On the basis of embodiment 1, the beam 320 of the stirring apparatus of the biological reaction tank 100 for sewage treatment of this embodiment is further provided with a second motor 410 and the third motor 420, and the second motor 410 and the third motor 420 are symmetrically arranged at two sides of the first motor 400; and the second motor 410 and the third motor 420 are connected with a stirrer respectively, the stirrer comprises a plurality of fan-shaped blades, and the fan-shaped blades are arranged at the sewage level of the biological reaction tank 100.

Set up second motor 410 and third motor 420 in the bilateral symmetry of first motor 400, be connected with the agitator respectively, and fan-shaped blade agitator all sets up in sewage face department, can effectively make the biological basic membrane that floats on the sewage face fully obtain the stirring, prevents that the biological basic membrane of sewage face department from hardening, is difficult to handle.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims (4)

1. A biological reaction tank for sewage treatment is characterized by comprising:

the device comprises a biological reaction tank, a water tank and a water tank, wherein slide rails are arranged on two sides of the biological reaction tank;

the bracket is erected on the biological reaction tank and comprises bracket legs and a cross beam; the two support legs are embedded in the slide rail so as to slide in the slide rail;

a first motor; fixed on the cross beam;

the first coupling is fixedly connected below the first motor;

the stirring shaft is fixedly connected below the first coupler;

the stirring blade is fixed on the stirring shaft; the stirring device comprises a first stirring blade and a second stirring blade, wherein the first stirring blade is a plurality of fan-shaped blades; the second stirring blade is a hyperboloid blade;

the first stirring blade is arranged at the sewage surface of the biological reaction tank; the second stirring blade is arranged below the sewage surface of the biological reaction tank;

the beam is also provided with a second motor and a third motor, and the second motor and the third motor are symmetrically arranged on two sides of the first motor; and the second motor and the third motor are connected with a stirrer respectively;

the stirrer comprises a plurality of fan-shaped blades; the fan-shaped blades are arranged on the sewage surface of the biological reaction tank.

2. The biological reaction tank for sewage treatment according to claim 1, wherein a pulley is arranged at the bottom of the bracket, and the pulley is embedded in the slide rail.

3. The biological reaction tank for sewage treatment according to claim 1, wherein a plurality of arc-shaped reinforcing ribs are uniformly arranged on the double curved surface blades.

4. The biological reaction tank for sewage treatment according to claim 1, wherein a plurality of water filtering holes are further provided on the double curved surface blade.