Convection type MBR (Membrane Bioreactor) wastewater treatment equipment

Abstract

The utility model discloses convection type MBR (membrane bioreactor) wastewater treatment equipment which comprises an MBR tank, an MBR membrane frame is arranged in the MBR tank, an MBR membrane is arranged in the MBR membrane frame, a connecting plate is fixed at the top end of the MBR membrane frame, a shaking mechanism is arranged on the outer side of the MBR membrane frame, and an aeration mechanism is arranged at the bottom end of the MBR membrane frame. The cam can be driven to rotate by starting the driving motor, so that the cam can impact the MBR membrane frame, the MBR membrane frame can shake left and right, the dynamic membrane assembly can enhance the flowing of liquid on the membrane surface, and the enhanced hydrodynamic effect is beneficial to washing off impurities and microbial flocs attached to the membrane surface. According to the aeration system, the membrane blocking risk is reduced, the aeration and washing efficiency is improved, and the same or better treatment effect can be achieved by using less air or oxygen, so that the energy consumption of the aeration system is reduced, and energy conservation and emission reduction are realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to industrial wastewater treatment equipment specifically, and relates to a convection type MBR wastewater treatment equipment. BACKGROUND

[0002] Industrial wastewater treatment equipment is a mechanical equipment designed to treat wastewater generated in industrial production, so that it meets the discharge standard or is reused. These devices use advanced technology and process, which can effectively remove harmful substances in wastewater and reduce environmental pollution. The convection type MBR wastewater treatment equipment is a new process combining biological treatment technology and membrane separation technology, which can remove suspended solids, colloids and dissolved organic pollutants in sewage to some extent, so that the organic pollutants meet the discharge standard.

[0003] During the use of the convection type MBR wastewater treatment equipment, because there are many insoluble impurities in the sewage, the membrane bioreactor is often blocked, so it is necessary to use an aeration system to aerate and flush the membrane surface to remove the blockage. However, the existing MBR membrane aeration system is a fixed and uniformly distributed perforated pipe placed under the membrane rack to aerate the membrane system above it. The aeration method has poor scrubbing effect on the membrane system, high energy consumption, and is not conducive to use by the user. In view of the problems in the related art, no effective solution has been proposed so far. SUMMARY

[0004] In view of the problems in the related art, the utility model provides a convection type MBR wastewater treatment equipment to overcome the above technical problems existing in the prior art.

[0005] Therefore, the utility model adopts the following specific technical solutions:

[0006] A convection type MBR wastewater treatment equipment, comprising an MBR tank, an MBR membrane frame inside the MBR tank, an MBR membrane sheet inside the MBR membrane frame, a connecting plate fixed to the top end of the MBR membrane frame, a shaking mechanism outside the MBR membrane frame, and an aeration mechanism at the bottom end of the MBR membrane frame.

[0007] Further, in order to drive the MBR frame to shake and improve the efficiency of aeration flushing, the shaking mechanism comprises a fixed frame outside the MBR membrane frame, a mounting bracket outside the fixed frame, the mounting bracket being connected to the MBR tank, a sliding groove on the upper and lower sides of the fixed frame, a sliding block outside the MBR membrane frame, the sliding block being matched with the sliding groove, a spring fixedly connected to one side of the bottom end of the fixed frame, the other end of the spring being connected to the MBR membrane frame, a cam provided on the other side of the bottom end of the fixed frame, the number of the cams being two, a rotating shaft connected above the cams, and a driving mechanism connected to the rotating shaft.

[0008] Further, in order to drive the cam to rotate, the driving mechanism comprises a first bevel gear arranged at the top end of the rotating shaft, the first bevel gear is engaged with a second bevel gear, the second bevel gear is connected with a rotating rod, a driven gear is arranged in the middle of the rotating rod, the driven gear is engaged with a driving gear, and the driving gear is connected with the output end of the driving motor.

[0009] Further, in order to protect the driving mechanism from the influence of wastewater, the driving mechanism is arranged in the installation shell, the installation shell is provided with installation plates on both sides, the installation plates are fixedly connected with the fixed frame, and the rotating shaft is connected with the installation shell through a bearing.

[0010] Further, in order to expose the membrane surface to aeration and flushing, the aeration mechanism comprises an aeration main pipe arranged at the bottom end of the fixed frame, aeration branch pipes are connected to the aeration main pipe, air holes are arranged on the aeration branch pipes, a sludge discharge hole is arranged at one end of the aeration branch pipe, one end of the aeration main pipe is communicated with a blower, and the blower is arranged on one side of the MBR tank.

[0011] Further, an adjusting valve is arranged on the aeration main pipe, and an air flow detector is arranged on one side of the adjusting valve.

[0012] Further, in order to discharge the treated wastewater and flush the MBR tank, an outlet pipe is arranged in the connecting plate, the outlet pipe is connected with the input end of a first water pump, the output end of the first water pump is connected with a clean water tank through a connecting pipe, a backflow pipe is arranged in the clean water tank, one end of the backflow pipe is connected with the input end of a second water pump, and the output end of the second water pump is connected with the MBR tank through a connecting pipe.

[0013] The beneficial effects of the utility model are as follows:

[0014] (1) The shaking mechanism is arranged, the driving motor is started to drive the cam to rotate, the cam can impact the MBR membrane frame, the MBR membrane frame can shake left and right, the dynamic membrane assembly can enhance the flow of liquid on the membrane surface, the enhanced fluid dynamics effect helps to flush away the impurities and microbial floc attached to the membrane surface, reduces the risk of membrane blockage, improves the efficiency of aeration and flushing, less air or oxygen can be used to achieve the same or better treatment effect, thereby reducing the energy consumption of the aeration system, and energy saving and emission reduction are realized.

[0015] (2) The sludge hole is arranged, and the sludge entering the aeration branch pipe can be discharged. DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings described in the following embodiments are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 It is a front view of a convection type MBR wastewater treatment equipment according to an embodiment of the present application.

[0018] Figure 2 It is an internal structure diagram of a MBR tank of a convection type MBR wastewater treatment equipment according to an embodiment of the present application.

[0019] Figure 3 It is a fixed frame structure diagram of a convection type MBR wastewater treatment equipment according to an embodiment of the present application.

[0020] Figure 4 It is a driving mechanism structure diagram of a convection type MBR wastewater treatment equipment according to an embodiment of the present application.

[0021] In the drawings:

[0022] 1, MBR tank; 2, MBR membrane frame; 3, MBR membrane; 4, connecting plate; 5, shaking mechanism; 501, fixed frame; 502, mounting bracket; 503, sliding groove; 504, sliding block; 505, spring; 506, cam; 507, rotating shaft; 6, aeration mechanism; 601, aeration main pipe; 602, aeration branch pipe; 603, air hole; 604, sludge discharge hole; 605, air blower; 7, driving mechanism; 701, first bevel gear; 702, second bevel gear; 703, rotating rod; 704, driven gear; 705, driving gear; 706, driving motor; 8, mounting shell; 9, mounting plate; 10, regulating valve; 11, air flow detector; 12, water outlet pipe; 13, first water pump; 14, return pipe; 15, second water pump; 16, clean water tank. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0024] According to the embodiments of the present application, a convection type MBR wastewater treatment equipment is provided.

[0025] Example one

[0026] As Figures 1-4 shown, according to the convection type MBR wastewater treatment equipment of the utility model embodiment, including MBR pool 1, MBR pool 1 inside is equipped with MBR membrane frame 2, MBR membrane frame 2 inside is equipped with MBR membrane piece 3, MBR membrane frame 2 top is fixed with connecting plate 4, MBR membrane frame 2 outside is equipped with shaking mechanism 5, MBR membrane frame 2 bottom is equipped with aeration mechanism 6, shaking mechanism 5 includes the fixed frame 501 of being equipped with in MBR membrane frame 2 outside, fixed frame 501 outside is equipped with mounting bracket 502, mounting bracket 502 is connected with MBR pool 1, the both sides of fixed frame 501 are equipped with sliding slot 503, MBR membrane frame 2 outside is equipped with sliding block 504, sliding block 504 is matched with sliding slot 503, by setting sliding block 504 and sliding slot 503, guarantee MBR membrane frame can only move left and right, the one side of fixed frame 501 bottom is fixedly connected with spring 505, the other end of spring 505 is connected with MBR membrane frame 2, the other side of fixed frame 501 bottom is equipped with cam 506, the number of cam 506 is two, cam 506 top is connected with rotating shaft 507, rotating shaft 507 is connected with drive mechanism 7, drive mechanism 7 includes the first bevel gear 701 of being equipped with in rotating shaft 507 top, first bevel gear 701 is engaged with second bevel gear 702, second bevel gear 702 is connected with rotating rod 703, rotating rod 703 middle is equipped with driven gear 704, driven gear 704 is engaged with driving gear 705, driving gear 705 is connected with drive motor 706 output end, drive mechanism 7 is equipped in mounting shell 8 inside, the both sides of mounting shell 8 are equipped with mounting plate 9, mounting plate 9 is fixedly connected with fixed frame 501, rotating shaft 507 is connected with mounting shell 8 through bearing, mounting shell 8 below and rotating shaft 507 connecting place is equipped with sealing treatment, mounting shell 8 is also equipped with wiring port, wiring port is also equipped with sealing treatment, can protect drive mechanism 7, prevent wastewater from causing influence to the element in drive mechanism 7, aeration mechanism 6 includes the aeration main pipe 601 of being equipped with in fixed frame 501 bottom, aeration main pipe 601 is connected with aeration branch pipe 602, aeration branch pipe 602 is equipped with air hole 603, aeration branch pipe 602 one end is equipped with sludge discharge hole 604, aeration main pipe 601 one end is communicated with air blower 605, air blower 605 is equipped in MBR pool 1 one side, aeration main pipe 601 is equipped with regulating valve 10, regulating valve 10 one side is equipped with gas flow detector 11, by setting gas flow detector 11, can detect gas flow, so that the user can directly observe the gas flow size, it is convenient to adjust gas flow, connecting plate 4 inside is equipped with outlet pipe 12, outlet pipe 12 is connected with first water pump 13 input end, first water pump 13 output end is connected with clean water pool 16 through connecting pipe, clean water pool 16 inside is equipped with backflow pipe 14, backflow pipe 14 one end is connected with second water pump 15 input end, second water pump 15 output end is connected with MBR pool 1 through connecting pipe.

[0027] In order to facilitate the understanding of the above technical scheme of the utility model, the working principle or operation mode of the utility model in the actual process is explained in detail below.

[0028] In actual application, by adding wastewater into the MBR tank 1, by opening the air blower 605 and the regulating valve, gas can be discharged from the air hole 603, gas can be introduced into the MBR tank 1, and by starting the driving motor 706, the driving gear 705 is driven to rotate, the driving gear 705 drives the driven gear 704 to rotate, the driven gear 704 drives the rotating rod 703 to rotate, the second bevel gear 702 is driven to rotate, the first bevel gear 701 is driven to rotate by the rotation of the second bevel gear 702, the first bevel gear 701 drives the rotating shaft 507 to rotate, and the rotating shaft 507 drives the cam 506 to rotate, so that the cam 506 impacts the MBR frame, under the action of the spring 505, the MBR frame can move repeatedly, so that the bubbles can be dispersed more effectively, the entire membrane surface area can be ensured to be fully supplied with oxygen, and the problem of insufficient oxygen supply in some areas caused by static aeration is avoided, and by starting the first water pump 13, the activated sludge and macromolecular organic matter in the wastewater are intercepted by the membrane separation technology of the MBR membrane 3, so that the liquid flowing into the water outlet pipe 12 through the connecting block plate is clean water, and by setting the second water pump 15, the water in the clean water tank 16 can be pumped out to flush the MBR tank 1.

[0029] In summary, by means of the above technical scheme of the utility model, by setting the shaking mechanism 5, the cam 506 is driven to rotate by starting the driving motor 706, the cam 506 can impact the MBR membrane frame 2, the MBR membrane frame 2 can shake left and right, the dynamic membrane assembly can enhance the flow of liquid on the membrane surface, this enhanced fluid dynamics effect helps to flush away the impurities and microbial floc attached to the membrane surface, reduces the risk of membrane blockage, and improves the efficiency of aeration and flushing, so that less air or oxygen can be used to achieve the same or better treatment effect, thereby reducing the energy consumption of the aeration system, achieving energy saving and emission reduction, and setting the sludge hole can discharge the sludge entering the aeration branch pipe 602.

[0030] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A convection MBR wastewater treatment equipment, characterized in that, The invention comprises an MBR pool (1), wherein an MBR membrane frame (2) is provided inside the MBR pool (1), an MBR membrane sheet (3) is provided inside the MBR membrane frame (2), a connecting plate (4) is fixed to the top of the MBR membrane frame (2), a shaking mechanism (5) is provided outside the MBR membrane frame (2), an aeration mechanism (6) is provided at the bottom of the MBR membrane frame (2), the shaking mechanism (5) comprises a fixing frame (501) provided outside the MBR membrane frame (2), a mounting frame (502) is provided outside the fixing frame (501), and the mounting frame (502) is connected to the MBR pool (1). The fixed frame (501) is provided with a slide groove (503) on the upper and lower sides, and a slider (504) is provided on the outside of the MBR membrane frame (2), and the slider (504) matches the slide groove (503). A spring (505) is fixedly connected to one side of the bottom end of the fixed frame (501), and the other end of the spring (505) is connected to the MBR membrane frame (2). A cam (506) is provided on the other side of the bottom end of the fixed frame (501), and the number of the cams (506) is two. A rotating shaft (507) is connected above the cam (506), and the rotating shaft (507) is connected to the driving mechanism (7).

2. A convection MBR wastewater treatment equipment according to claim 1, characterized in that, The driving mechanism (7) comprises a first bevel gear (701) provided at the top end of a rotating shaft (507), the first bevel gear (701) meshing with a second bevel gear (702), the second bevel gear (702) being connected to a rotating rod (703), a driven gear (704) being provided in the middle of the rotating rod (703), the driven gear (704) being meshing with a driving gear (705), and the driving gear (705) being connected to an output end of a driving motor (706).

3. A convection MBR wastewater treatment equipment according to claim 2, characterized in that, The driving mechanism (7) is arranged inside the mounting shell (8), and mounting plates (9) are provided on both sides of the mounting shell (8). The mounting plates (9) are fixedly connected to the fixing frame (501), and the rotating shaft (507) is connected to the mounting shell (8) through a bearing.

4. A convection type MBR wastewater treatment equipment according to claim 1, characterized in that, The aeration mechanism (6) comprises an aeration main pipe (601) arranged at the bottom end of the fixed frame (501), an aeration branch pipe (602) connected to the aeration main pipe (601), an air hole (603) provided on the aeration branch pipe (602), a mud discharge hole (604) provided at one end of the aeration branch pipe (602), and one end of the aeration main pipe (601) being connected to a blower (605), which is arranged on one side of the MBR tank (1).

5. A convection type MBR wastewater treatment equipment according to claim 4, characterized in that, The aeration main pipe (601) is provided with a regulating valve (10), and an air flow detector (11) is provided on one side of the regulating valve (10).

6. A convection type MBR wastewater treatment equipment according to claim 1, characterized in that, A water outlet pipe (12) is provided inside the connecting plate (4), the water outlet pipe (12) is connected to the input end of a first water pump (13), the output end of the first water pump (13) is connected to a clean water tank (16) through a connecting pipe, a return pipe (14) is provided inside the clean water tank (16), one end of the return pipe (14) is connected to the input end of a second water pump (15), and the output end of the second water pump (15) is connected to the MBR tank (1) through a connecting pipe.

Images