Multiphase internal circulation Fenton fluidized bed industrial wastewater treatment device

Abstract

The utility model discloses a multiphase internal circulation Fenton fluidized bed industrial wastewater treatment device which comprises an outer cylinder, a water inlet device is arranged at the bottom of the outer cylinder, a plurality of inner cylinders are arranged in the outer cylinder side by side, and the heights of the inner cylinders are gradually increased; an aeration device is arranged at the bottom in the outer barrel and comprises an aeration pump, an aeration pipe and a plurality of aeration discs, the aeration pump is located outside the outer barrel, the aeration pipe is communicated with the aeration pump, and the aeration discs are communicated with the aeration pipe and arranged below the inner barrels in a one-to-one correspondence mode. According to the utility model, the inner cylinders with different heights are arranged, so that the inner circulation among the inner cylinders forms a height difference, wastewater is not easy to concentrate, the speeds of the wastewater in the inner circulation are different, and greater disturbance is generated on the wastewater; each inner cylinder independently circulates, so that the wastewater is more comprehensively contacted with the fluidized bed carrier, more microorganisms can be conveniently attached to the surface of the fluidized bed carrier, and the wastewater treatment effect is better.

Description

TECHNICAL FIELD

[0001] The utility model relates to fluidized bed field especially relates to a kind of multi-phase internal circulation fenton fluidized bed industrial wastewater treatment device. BACKGROUND

[0002] Fluidized bed fenton process is a kind of wastewater treatment technology, it combines the advantages of active oxygen and catalyst, to kill harmful substances in water. This process usually adds filler (such as iron powder) as catalyst in fluidized bed, and mixes ozone and wastewater to improve the biodegradability of wastewater, while killing bacteria and viruses and other microorganisms.

[0003] The existing internal circulation fenton fluidized bed includes inner cylinder and outer cylinder arranged on the same axis, water inlet device and aeration device, the water inlet device and the aeration device are located below the inner cylinder, wastewater enters from the bottom through the water inlet device, mixes with fluidized bed carrier and air in the reaction zone, and is stirred, and enters from the lower end of the inner cylinder and is discharged from the upper end, the discharged wastewater continues to circulate between the inner and outer cylinders to the lower end of the inner cylinder. Since the inner cylinder is arranged at the center of the fluidized bed, the mixed wastewater enters the inner cylinder relatively concentrated and quickly, the internal circulation speed is fast, which easily causes poor microbial adhesion effect, less microbial adhesion on the surface of fluidized bed carrier, and poor wastewater treatment effect. SUMMARY

[0004] The utility model aims at providing a kind of multi-phase internal circulation fenton fluidized bed industrial wastewater treatment device, to solve the problems of internal circulation speed in prior art, less microbial adhesion on the surface of carrier, and poor wastewater treatment effect.

[0005] To achieve the above-mentioned utility model purposes, the technical scheme of the utility model is as follows:

[0006] A kind of multi-phase internal circulation fenton fluidized bed industrial wastewater treatment device, including outer cylinder, the bottom of the outer cylinder is provided with water inlet device, a plurality of inner cylinders are arranged side by side in the outer cylinder, and each inner cylinder is gradually higher;Aeration device is arranged on the outer cylinder, the aeration device includes aeration pump, aeration pipe and a plurality of aeration discs, the aeration pump is located outside the outer cylinder, the aeration pipe is communicated with the aeration pump, each aeration disc is communicated with the aeration pipe, and is arranged below each inner cylinder one by one. Different heights of inner cylinder are arranged, so that the wastewater circulating speed from each inner cylinder is different, realizing the independent internal circulation of each inner cylinder, generating greater disturbance to wastewater, making wastewater contact with fluidized bed carrier more comprehensively, facilitating more microorganisms to adhere to the surface of fluidized bed carrier, and better wastewater treatment effect. An aeration disc is arranged below each inner cylinder, which can respectively push wastewater into the corresponding inner cylinder, wastewater is not easy to enter one inner cylinder, and is dispersedly treated, so that wastewater can be well circulated, and wastewater treatment speed is accelerated.

[0007] Preferably, the outer cylinder is provided with an air inlet cover, each inner cylinder penetrates the air inlet cover, and a plurality of through holes are formed in each inner cylinder and communicated with the air inlet cover, and the aeration pipe is provided with a branch pipe communicated with the air inlet cover. The air inlet cover and the through holes can further promote the upward flow of the wastewater in the inner cylinder, and can also stir the wastewater to provide more dissolved oxygen for the wastewater, thereby facilitating the oxygenation effect of the wastewater.

[0008] Preferably, an inclined pipe is arranged on the inner side wall of each inner cylinder and communicated with the through hole. The inclined pipe can guide the air upward, thereby further promoting the upward flow of the wastewater, and the wastewater is less likely to deposit, thereby improving the wastewater treatment efficiency.

[0009] Preferably, each inner cylinder is rotatably and sealingly connected with the air inlet cover, a motor is arranged at the bottom of the outer cylinder, a rotating shaft penetrating into the outer cylinder is fixedly connected to the rotor of the motor, a driving gear is fixedly connected to the rotating shaft, a driven gear is fixedly connected to each inner cylinder and engaged with the driving gear, the driven gear is arranged on the upper end surface of the air inlet cover, and the driving gear is engaged with one of the driven gears. The rotating shaft is driven to rotate by the motor, thereby driving the driven gears to rotate by the driving gear, so that each inner cylinder rotates. When the inner cylinder rotates, the wastewater and the fluidized bed carrier are disturbed, so that the fluidized bed carrier, the wastewater and the air are more fully contacted, thereby improving the wastewater treatment effect.

[0010] Preferably, a spiral blade is arranged on the inner side wall of the inner cylinder along the axial direction. When the inner cylinder rotates, the spiral blade rotates synchronously, thereby efficiently promoting the upward movement of the wastewater and the fluidized bed carrier in the inner cylinder, and improving the internal circulation efficiency of each inner cylinder.

[0011] Preferably, a conical flow guide cover is arranged at the lower end of each inner cylinder. The flow guide cover has a guiding effect, and is convenient for more wastewater and fluidized bed carriers to enter the inner cylinder.

[0012] The present application has the following beneficial effects:

[0013] 1. In the present application, the inner cylinders with different heights are arranged, so that the internal circulation between the inner cylinders forms a height difference, the wastewater is less likely to concentrate, the wastewater speed of each internal circulation is different, and greater disturbance is generated on the wastewater; the wastewater and the fluidized bed carrier are more fully contacted, more microorganisms are attached to the surface of the fluidized bed carrier, and the wastewater treatment effect is better; and each inner cylinder is provided with an aeration disc below, so that the wastewater can be respectively promoted to enter the corresponding inner cylinder, the wastewater is less likely to concentrate in one inner cylinder, the wastewater is dispersedly treated, and the wastewater treatment speed is accelerated.

[0014] 2, The utility model discloses a set up air intake cover, through -hole, inclined pipe and helical blade, can all accelerate the speed of wastewater, fluidized bed carrier in the upflow in inner tube, still make fluidized bed carrier, wastewater and air contact more comprehensive, mix more evenly, convenient for microbial attachment, improve wastewater treatment effect and efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the structural diagram of the utility model.

[0016] Figure 2 It is Figure 1 The enlarged view of A part in the utility model.

[0017] In the drawing:

[0018] 1, outer tube;2, inner tube;21, through -hole;3, water inlet device;4, aeration device;41, aeration pump;42, aeration pipe;43, aeration disc;44, branch air pipe;5, air intake cover;6, inclined pipe;7, motor;71, driving gear;72, driven gear;73, rotating shaft;8, flow guide cover;9, helical blade. DETAILED DESCRIPTION

[0019] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings.

[0020] The described embodiments are only a part of the embodiments of the utility model, not all. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0021] Embodiment 1

[0022] As Figure 1 And Figure 2 As shown in a kind of multi-phase internal circulation Fenton fluidized bed industrial wastewater treatment device, including outer tube 1, the bottom of outer tube 1 is provided with water inlet device 3, outer tube 1 is provided with air intake cover 5, air intake cover 5 is vertically penetrated with several inner tubes 2, and each inner tube 2 is gradually higher, and the lower end of each inner tube 2 is provided with conical flow guide cover 8 respectively. Inner tube 2 is provided with several through -holes 21 that are communicated with air intake cover 5, and inclined pipe 6 that is communicated with through -hole 21 is inclined and arranged on the inner side wall of inner tube 2. Outer tube 1 is provided with aeration device 4, including aeration pump 41 located outside outer tube 1, aeration pipe 42 located below inner tube 2 and several aeration discs 43 that are communicated with aeration pipe 42, and each aeration disc 43 is located below inner tube 2 respectively;Aeration pipe 42 is provided with branch air pipe 44 that is communicated with air intake cover 5.

[0023] As Figure 1As shown, the inner side wall of the inner cylinder 2 is provided with helical blades 9 along the axial direction thereof; each inner cylinder 2 is rotatably and sealingly connected with the air inlet cover 5, the bottom of the outer cylinder 1 is vertically provided with a motor 7, the rotor of the motor 7 is fixedly connected with a rotating shaft 73 penetrating into the outer cylinder 1, the rotating shaft 73 is fixedly connected with a driving gear 71 located in the outer cylinder 1, the outer side wall of each inner cylinder 2 is fixedly connected with a driven gear 72 meshing with each other and located on the upper end surface of the air inlet cover 5, and the driving gear 71 meshes with one of the driven gears 72.

[0024] In summary,

[0025] When the multiphase inner circulation Fenton fluidized bed industrial wastewater treatment device works, wastewater enters into the bottom of the outer cylinder 1 from the water inlet device 3, the aeration device 4 works to deliver air from the aeration pipe 42 into each aeration disc 43 and the air inlet cover 5, the air discharged from the aeration disc 43 pushes the sewage and the fluidized bed carrier into the corresponding inner cylinder 2, and the air discharged from the air inlet cover 5 and the inclined pipe 6 pushes the sewage and the fluidized bed carrier in the inner cylinder 2 to flow upward again, so as to accelerate the separate inner circulation of each inner cylinder 2.

[0026] When the aeration disc 43 works, the motor 7 drives the rotating shaft 73 to rotate, the driving gear 71 drives the driven gear 72 to rotate, and then the inner cylinder 2 is driven to rotate, and the helical blade 9 is synchronously rotated when the inner cylinder 2 rotates, so as to not only stir the air, the wastewater and the fluidized bed carrier, but also make the wastewater and the fluidized bed carrier contact more comprehensively, facilitate more microorganisms to adhere to the surface of the fluidized bed carrier, efficiently push the wastewater and the fluidized bed carrier in the inner cylinder 2 to move upward, and accelerate the inner circulation.

[0027] The described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

Claims

1. A multiphase internal circulation Fenton fluidized bed industrial wastewater treatment device, comprising an outer cylinder, wherein a water inlet device is provided at the bottom of the outer cylinder, characterized in that, The outer cylinder has several inner cylinders arranged side by side, and the height of each inner cylinder increases sequentially. An aeration device is provided on the outer cylinder. The aeration device includes an aeration pump, an aeration pipe, and several aeration discs. The aeration pump is located outside the outer cylinder. The aeration pipe is connected to the aeration pump. Each aeration disc is connected to the aeration pipe and is arranged in a corresponding manner below each inner cylinder.

2. The multiphase internal circulation Fenton fluidized bed industrial wastewater treatment device according to claim 1, characterized in that, An air inlet hood is fixedly connected to the inner wall of the outer cylinder, and each inner cylinder extends out of the air inlet hood. Each inner cylinder has several through holes that communicate with the air inlet hood, and the aeration pipe is provided with a branch pipe that communicates with the air inlet hood.

3. The multiphase internal circulation Fenton fluidized bed industrial wastewater treatment device according to claim 2, characterized in that, Each inner cylinder has an inclined tube that is inclined upwards and communicates with the through hole on its inner side wall.

4. The multiphase internal circulation Fenton fluidized bed industrial wastewater treatment device according to claim 3, characterized in that, Each inner cylinder is rotatably and sealed to the air inlet hood. A motor is installed at the bottom of the outer cylinder. A rotating shaft that passes through the outer cylinder is fixedly connected to the rotor of the motor. A drive gear is fixedly connected to the rotating shaft. Each inner cylinder is fixedly connected to a driven gear that meshes with each other. The driven gear is located on the upper end face of the air inlet hood. The drive gear meshes with one of the driven gears.

5. The multiphase internal circulation Fenton fluidized bed industrial wastewater treatment device according to claim 4, characterized in that, The inner wall of the inner cylinder is provided with helical blades along its axial direction.

6. The multiphase internal circulation Fenton fluidized bed industrial wastewater treatment device according to claim 5, characterized in that, Each inner cylinder has a conical flow guide at its lower end.

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