A device for treating dairy production wastewater

Abstract

The present application relates to wastewater treatment technical field, specifically disclose a kind of dairy production wastewater treatment device, comprising: dredging mechanism, dredging mechanism includes partition ring one, lifting part, partition ring two, elastic locking piece and dredging piece, dredging mechanism with the inside of aeration head is formed with cavity one, cavity two and cavity three, aeration head is provided with aeration membrane, aeration head is provided with aeration hole, aeration membrane and aeration hole are respectively communicated with cavity two and cavity three;Before aeration membrane is blocked, cavity one and cavity two are communicated, oxygen can be passed through cavity one into cavity two, and be discharged into wastewater by aeration membrane;After aeration membrane is blocked, cavity one and cavity three are communicated, oxygen can be passed through cavity one into cavity three, and be discharged into wastewater by aeration hole, while driving dredging piece to dredge aeration membrane;The dairy production wastewater treatment device of the present application can dredge aeration membrane to avoid the influence on the aeration treatment effect of wastewater.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wastewater treatment, in particular to a dairy production wastewater treatment device. BACKGROUND

[0002] Dairy products are various foods made from animal milk (mainly cow milk, sheep milk, etc.) as raw materials. During the production and processing of dairy products, a large amount of high-concentration organic wastewater is generated in the links of equipment cleaning, container flushing and ground drainage, etc. The characteristics of the wastewater are extremely high chemical oxygen demand, biochemical oxygen demand and suspended solid content, which are mainly derived from unutilized lactose, protein, fat and cleaning agent residues. If this kind of wastewater is directly discharged without effective treatment, it will seriously destroy the ecological balance of the receiving water body and lead to eutrophication and rapid decrease of dissolved oxygen. Therefore, it is necessary to perform oxygen exposure aeration treatment on the dairy product wastewater.

[0003] A patent document with publication number CN116102185B discloses an aeration structure and device applied to domestic wastewater treatment. The aeration structure comprises a water storage tank, multiple communication pipes, a fixing mechanism and an externally connected air guide mechanism. The left and right side walls of the water storage tank are respectively provided with a water inlet and a water outlet. The multiple communication pipes are uniformly fixed on the bottom of the water storage tank through the fixing mechanism. The lower end side wall of each communication pipe is fixedly connected with multiple arrayed air injection pipes. The air injection pipes are internally provided with a plugging mechanism. The plugging mechanism is used to plug the air injection pipe orifice during the non-aeration period. The air guide mechanism is in communication with the communication pipe.

[0004] In use, the air injection pipe orifice with a relatively large caliber is used for air injection, so that the air output of the air injection structure is large. The mixture of sewage and sludge is not easy to approach the air injection pipe orifice during work. The plugging difficulty of the large-caliber air injection pipe orifice is relatively large. Even if slight adhesion plugging occurs during shutdown, it is also difficult to be completely plugged. The plugging material can be easily flushed out by air flow. In addition, the downward design of the air injection pipe orifice enables the air flow to directly impact the bottom of the water storage tank, so that the active sludge deposited on the bottom of the water storage tank is brought up, and the active sludge can be more quickly and uniformly mixed with the wastewater, thereby ensuring the uniform distribution of microorganisms in the active sludge in the wastewater.

[0005] However, the above patent document still has the following deficiencies: After the wastewater is transported into the wastewater tank, the oxygen is generally transported to the aeration head by the aeration mechanism, and the oxygen is divided into multiple small bubbles by the aeration head and transported into the wastewater, so as to realize the aeration of the wastewater. However, the wastewater generated during the production of dairy products contains a certain amount of oil and protein, which is easy to adhere to the aeration head, especially the microporous aeration head, thereby causing the micropores on the aeration head to be blocked, which is difficult to clean up, and thus affecting the aeration treatment effect of the wastewater. SUMMARY

[0006] The application provides a dairy production wastewater treatment device, and aims to solve the problem in the prior art that oil and protein in wastewater are easily attached to an aeration head, causing the micropores on the aeration head to be blocked, thereby affecting the aeration treatment effect of the wastewater.

[0007] The dairy production wastewater treatment device comprises a wastewater pool, an aeration mechanism and an aeration head, and further comprises a dredging mechanism, the dredging mechanism comprising a separation ring one, a lifting part, a separation ring two, an elastic locking part and a dredging part, the separation ring one being connected in the aeration head, the separation ring two being connected on the separation ring one, the lifting part being slidingly connected in the aeration head, the elastic locking part being connected in the aeration head, the dredging part being connected in the aeration head and the separation ring one, the dredging mechanism and the inside of the aeration head forming a cavity one, a cavity two and a cavity three, the aeration head being provided with an aeration membrane and an aeration hole, the aeration membrane and the aeration hole being respectively communicated with the cavity two and the cavity three; before the aeration membrane is blocked, the cavity one and the cavity two are communicated, oxygen can enter the cavity two through the cavity one and be discharged into the wastewater by the aeration membrane; after the aeration membrane is blocked, the cavity one and the cavity three are communicated, oxygen can enter the cavity three through the cavity one and be discharged into the wastewater by the aeration hole, and the dredging part is driven to dredge the aeration membrane.

[0008] When the wastewater generated in the production of dairy products is treated, the wastewater is first delivered into the wastewater pool, then the aeration mechanism is started to deliver oxygen into the cavity one in the aeration head and then into the cavity two through the cavity one, so that the oxygen can be delivered into the wastewater after being divided into a plurality of small bubbles by the aeration membrane, thereby aerating the wastewater, after the aeration membrane is blocked by the oil and protein in the wastewater, the air pressure in the cavity one and the cavity two increases, thereby driving the elastic locking part to release the locking of the lifting part through the air pressure, and the lifting part is pushed downward in the cavity two, so that the cavity three is communicated with the cavity one, the oxygen entering the cavity one can enter the cavity three and be discharged into the wastewater by the aeration hole, the lifting part is driven to drive the dredging part to dredge the aeration membrane when the lifting part is lowered, so as to avoid the influence of the blockage of the aeration head by the oil and protein on the aeration treatment effect of the wastewater.

[0009] Preferably, the cavity one is formed by the inner side of the separation ring one, the inner side of the separation ring two, the top of the lifting part and the inner wall of the aeration head, the cavity two is formed by the top of the separation ring one, the inner side of the separation ring two and the inner wall of the aeration head, and the cavity three is formed by the outer side of the separation ring two, the bottom of the lifting part and the inner wall of the aeration head.

[0010] Preferably, the elastic locking part comprises a locking part and a spring, the locking part being connected with the inner wall of the aeration head through the spring.

[0011] The locking part is forced by the spring to lock the lifting part, so as to provide sufficient support force for the lifting part, and then the cavity one and the cavity three are separated by the lifting part.

[0012] Preferably, the locking part is provided with an inclined surface near one side of the lifting part.

[0013] The inclined surface on the locking part facilitates the subsequent application of pushing force by the locking part for the reset of the lifting part.

[0014] Preferably, the aeration hole is smaller than the air hole on the aeration membrane.

[0015] The aeration hole is smaller than the air hole on the aeration membrane, so that the cavity one and the cavity two are communicated, and the oxygen gas pressure when the oxygen gas is discharged from the aeration hole into the wastewater is smaller than the oxygen gas pressure when the oxygen gas is discharged from the aeration membrane into the wastewater, so that when the oxygen gas is discharged from the aeration hole into the wastewater, the elastic locking part is in the released state by the gas pressure of the oxygen gas.

[0016] Preferably, the separation ring one is provided with a guide groove, the guide groove is in the shape of an inclined circle, and the guide groove has a top point part and a low point part.

[0017] The guide groove can guide the dredging part to dredge the aeration membrane.

[0018] Preferably, the dredging part includes a shaft one, a fan blade, and a spline sleeve, the shaft one is rotationally connected in the aeration head, the fan blade is connected to the outside of the shaft one, and the spline sleeve is connected to the top of the shaft one.

[0019] After the aeration mechanism delivers oxygen into the cavity one, the flow of oxygen gas can push the fan blade to drive the shaft one to rotate.

[0020] Preferably, the dredging part further includes a shaft two, a spline shaft, and a plunger, the shaft two is rotationally connected to the lifting part, the spline shaft is connected to the bottom end of the shaft two, and the plunger is connected to the top of the shaft two.

[0021] After the aeration membrane is blocked, the lifting part moves downward to drive the shaft two to move downward, so that the spline shaft is limitingly inserted into the spline sleeve, and then the shaft one rotates to drive the shaft two to synchronously and directionally rotate, and when the shaft two moves downward, the plunger extends into the separation ring one to separate the cavity one and the cavity two by the plunger.

[0022] Preferably, the dredging part further includes a guide rod, an elastic part, and a guide protrusion, the guide rod is connected to the shaft two, the end of the guide rod away from the shaft two is provided with a mounting groove, and the guide protrusion is connected to the mounting groove on the guide rod by the elastic part.

[0023] When the rotating shaft two is driven to rotate by the rotating shaft one, the guide rod can be driven to move along a circular track, and after the guide protrusion moves to the top of the guide groove, the guide protrusion is pushed into the top of the guide groove by the elastic force of the elastic part, so that the rotating shaft two can move up and down under the guidance of the guide groove when rotating, thereby driving the plunger to move up and down, so that the plunger can continuously push oxygen into the cavity two, and then form a pulse to the aeration membrane, so as to clean the aeration membrane and restore its use.

[0024] Preferably, the end of the guide protrusion away from the elastic part is hemispherical.

[0025] The guide protrusion with one end being hemispherical facilitates the guide protrusion to separate from the guide groove.

[0026] The beneficial effects of the present application are:

[0027] 1. When treating the wastewater generated during the production of dairy products, oxygen is delivered into the cavity one in the aeration head by the aeration mechanism, and then delivered into the cavity two through the cavity one, so that the oxygen can be delivered into the wastewater after being divided into a plurality of small bubbles by the aeration membrane, thereby aerating the wastewater. When the aeration membrane is blocked by oil and protein in the wastewater, the air pressure inside the cavity one and the cavity two increases, thereby driving the elastic locking member to unlock the lifting part through the air pressure, and driving the lifting part to move down through the air pressure in the cavity two, so that the cavity three is communicated with the cavity one, and the oxygen entering the cavity one can enter the cavity three and be discharged into the wastewater through the aeration hole. When the lifting part moves down, the unblocking member is driven to unblock the aeration membrane, so as to avoid the influence of the aeration treatment effect of the wastewater caused by the blockage of the aeration head by oil and protein.

[0028] 2. When the aeration membrane is blocked, the lifting part is driven to move down, and after the lifting part moves down, the cavity one and the cavity three are communicated, at this time, oxygen continues to be delivered into the wastewater through the aeration hole communicated with the cavity three, so as to avoid the wastewater in the region being unable to continue to be aerated due to the blockage of the aeration membrane, realize the continuous aeration of the wastewater, and thereby enhance the aeration effect of the wastewater. BRIEF DESCRIPTION OF DRAWINGS

[0029] Figure 1 It is the overall structure schematic diagram of the present application.

[0030] Figure 2 It is the front view structure schematic diagram of the aeration mechanism of the present application.

[0031] Figure 3 It is the front view structure schematic diagram of the aeration head and the unblocking mechanism of the present application.

[0032] Figure 4 It is the front view structure schematic diagram of the aeration head and the unblocking mechanism of the present application.

[0033] Figure 5 is a structural schematic diagram of the unclogging member of the present application.

[0034] Figure 6 is a front structural schematic diagram of the unclogging member of the present application.

[0035] Figure 7 is a sectional structural schematic diagram of the guide rod of the present application.

[0036] Reference signs:

[0037] 1, wastewater pool; 2, aeration mechanism; 3, aeration head; 31, communication pipe; 311, aeration hole; 32, aeration membrane; 33, top cover; 4, unclogging mechanism; 41, partition ring one; 411, guide groove; 42, connecting part; 43, lifting part; 44, partition ring two; 45, elastic locking member; 46, unclogging member; 461, rotating shaft one; 462, fan blade; 463, spline sleeve; 464, rotating shaft two; 465, spline shaft; 466, plunger; 467, guide rod; 468, elastic part; 469, guide protrusion; 47, cavity one; 48, cavity two; 49, cavity three. DETAILED DESCRIPTION

[0038] Embodiments of the present application are described in detail below with reference to examples shown in the accompanying drawings. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0039] As shown in Figures 1 to 7 the milk production wastewater treatment device of the present application, comprising a wastewater pool 1, an aeration mechanism 2, an aeration head 3 and an unclogging mechanism 4, the wastewater pool 1 is used to contain the wastewater generated during the production of dairy products, the aeration mechanism 2 is connected in the wastewater pool 1, and the aeration mechanism 2 can deliver oxygen into the wastewater, the aeration head 3 is provided in multiple, and the multiple aeration heads 3 are all connected to the aeration mechanism 2, so that the multiple aeration heads 3 are evenly laid in the wastewater pool 1, the multiple aeration heads 3 are in communication with the aeration mechanism 2, and the oxygen in the aeration mechanism 2 can be delivered into the multiple aeration heads 3, when the oxygen is delivered into the wastewater, the oxygen entering the wastewater is divided into multiple fine bubbles by the aeration head 3, the multiple fine bubbles float upwards from the inner bottom of the wastewater, the oxygen in the multiple fine bubbles is used to evenly aerate the wastewater, and the unclogging mechanism 4 is connected in the aeration head 3, so that the unclogging mechanism 4 can unclog the micropores on the aeration head 3 when the micropores are blocked by oil and protein, so as to avoid affecting the aeration treatment effect of the wastewater due to the blockage of the aeration head 3 by oil and protein.

[0040] When the wastewater generated in the production of dairy products is aerated, the wastewater generated in the production of dairy products is first delivered to the wastewater tank 1, the aeration mechanism 2 is started, oxygen is delivered to the plurality of aeration heads 3 through the aeration mechanism 2, and when the oxygen enters the wastewater through the aeration heads 3, the oxygen entering the wastewater is divided into a plurality of fine bubbles by the aeration heads 3, the plurality of fine bubbles float upwards from the inner bottom of the wastewater, and the wastewater is aerated by the plurality of fine bubbles. When the aeration heads 3 are blocked by oil and protein in the wastewater, the blocked aeration heads 3 are dredged by the dredging mechanism 4 to restore the aeration of the aeration heads 3.

[0041] As shown in Figure 1 and Figure 4 The aeration head 3 includes a communication pipe 31, an aeration membrane 32, and a top cover 33. The communication pipe 31 is connected to the aeration mechanism 2 and communicates with the aeration mechanism 2. The top of the top cover 33 is provided with a circular hole, the aeration membrane 32 is connected in the circular hole at the top of the top cover 33, and the top cover 33 is threadedly connected to the top end of the communication pipe 31. The top cover 33 can block the top end of the communication pipe 31, so that the oxygen in the communication pipe 31 can only be delivered to the wastewater from the aeration membrane 32, so that the aeration membrane 32 can divide the oxygen into a plurality of fine bubbles.

[0042] When the wastewater generated in the production of dairy products is aerated, the oxygen in the dredging mechanism 4 is delivered to the communication pipe 31, and under the blocking action of the top cover 33, the oxygen in the communication pipe 31 can only be delivered to the wastewater from the aeration membrane 32. At this time, the oxygen delivered to the wastewater can be divided into a plurality of fine bubbles by the aeration membrane 32, so that the plurality of fine bubbles float upwards in the wastewater, thereby aerating the wastewater by the plurality of fine bubbles.

[0043] As shown in Figures 3 to 7The unclogging mechanism 4 includes a first partition ring 41, a connecting portion 42, a lifting portion 43, a second partition ring 44, an elastic locking member 45, and an unclogging member 46. The first partition ring 41 is installed in the communicating pipe 31. The first partition ring 41 is connected to the communicating pipe 31 through the connecting portion 42 and is coaxially arranged with the communicating pipe 31. The lifting portion 43 is limitingly and slidingly connected in the communicating pipe 31. The second partition ring 44 is connected to the outer side of the first partition ring 41 and is coaxially arranged with the first partition ring 41. The top of the second partition ring 44 is in contact with the inner top wall of the top cover 33. The top of the second partition ring 44 can be blocked through the top cover 33. The inner side of the first partition ring 41, the inner side of the second partition ring 44, the top of the lifting portion 43, and the inner side of the communicating pipe 31 form a cavity one 47. The top of the first partition ring 41, the inner side of the second partition ring 44, and the bottom of the aeration membrane 32 form a cavity two 48. The outer side of the second partition ring 44, the bottom of the lifting portion 43, and the inner side of the communicating pipe 31 form a cavity three 49. The bottom of the communicating pipe 31 is provided with an aeration hole 311. The aeration hole 311 is in communication with the cavity three 49. The elastic locking member 45 is connected in the communicating pipe 31. The unclogging member 46 is connected in the communicating pipe 31 and the first partition ring 41.

[0044] When the aeration head 3 is not blocked, the cavity one 47 and the cavity two 48 are in communication. The cavity three 49 is not in communication with the cavity one 47 under the separation of the lifting portion 43. When the oxygen in the aeration mechanism 2 is transported into the aeration head 3, the oxygen first enters the cavity one 47. After the oxygen passes through the cavity one 47, it enters the cavity two 48. Finally, the oxygen is divided into small bubbles by the aeration membrane 32 and discharged into the wastewater.

[0045] The elastic locking member 45 is connected in the communicating pipe 31. The lifting portion 43 can be supported by the elastic locking member 45. The top of the lifting portion 43 is in close contact with the bottom of the second partition ring 44, so that the cavity three 49 is not in communication with the cavity one 47. The elastic locking member 45 includes a spring and a locking portion. The spring is connected between the locking portion and the inner wall of the communicating pipe 31. The locking portion is inserted on the second partition ring 44. The side of the locking portion close to the lifting portion 43 is provided with an inclined surface. The locking portion supports the lifting portion 43 through the inclined surface under the action of the spring. The unclogging member 46 is connected to the inner side of the communicating pipe 31 and the first partition ring 41. The unclogging member 46 can unclog the aeration membrane 32 when it is blocked. The aeration hole 311 is smaller than the air holes on the aeration membrane 32. When the cavity one 47 and the cavity two 48 are in communication, the oxygen pressure when the oxygen is discharged from the aeration membrane 32 into the wastewater is smaller than the oxygen pressure when the oxygen is discharged from the aeration hole 311 into the wastewater when the cavity one 47 and the cavity three 49 are in communication. Therefore, when the oxygen is discharged from the aeration hole 311 into the wastewater, the elastic locking member 45 is in a released state through the oxygen pressure.

[0046] When the aeration head 3 is blocked, the oxygen in the cavity two 48 cannot be discharged into the wastewater from the aeration membrane 32, at this time the gas pressure in the cavity one 47 and the cavity two 48 increases, the gas pressure can push the locking part to move towards the direction of the extension separation ring two 44, and compress the spring, so as to release the locking of the locking part to the lifting part 43, so that the gas pressure pushes the lifting part 43 to move downward, when the lifting part 43 moves downward, it can drive the dredging piece 46 to operate, and the dredging piece 46 separates the cavity one 47 and the cavity two 48, so that the cavity one 47 and the cavity two 48 are no longer connected, and the lifting part 43 no longer separates the cavity one 47 and the cavity three 49 after moving downward, so that the cavity one 47 and the cavity three 49 are connected, at this time the oxygen in the cavity one 47 can enter the cavity three 49, and after forming bubbles through the aeration hole 311, it is discharged into the wastewater, so that the oxygen cannot cause the wastewater in this area to be aerated due to the blockage of the aeration membrane 32, so as to enhance the aeration effect of the wastewater, at this time the oxygen passing through the cavity one 47 can drive the dredging piece 46, so that the dredging piece 46 can push the oxygen into the cavity two 48, thereby forming a pulse to the aeration head 3, which can flush away the blocked aeration head 3, so that the aeration head 3 can continue to be used, after the aeration head 3 is normally used, the dredging piece 46 is no longer blocked by the gas pressure in the cavity two 48, so that the dredging piece 46 is pulled back under the action of the gas pressure in the cavity one 47, thereby connecting the cavity two 48 and the cavity one 47 again, at this time the oxygen entering the communication pipe 31 is discharged into the wastewater from the aeration head 3 and the aeration hole 311, so that the gas pressure in the cavity one 47, the cavity two 48 and the cavity three 49 decreases, and cannot provide enough thrust for the locking part, so that the locking part is reset under the action of the spring, so that the cavity one 47 continues to be connected with the cavity two 48, and the cavity three 49 is no longer connected with the cavity one 47.

[0047] With continued reference to Figures 3 to 7The inner wall of the separation ring one 41 is provided with a guide groove 411, which is an inclined circular shape and used for guiding the dredging piece 46. The guide groove 411 has a top point and a low point. The dredging piece 46 comprises a rotating shaft one 461, a fan blade 462, a spline sleeve 463, a rotating shaft two 464, a spline shaft 465, a plunger 466, a guide rod 467, an elastic part 468 and a guide protrusion 469. The rotating shaft one 461 is rotatably connected in the communicating pipe 31. The fan blade 462 is connected to the outside of the rotating shaft one 461 and located in the cavity one 47. When the oxygen enters the cavity one 47 from the aeration mechanism 2, the flow of the oxygen can push the fan blade 462, so that the fan blade 462 drives the rotating shaft one 461 to rotate. The spline sleeve 463 is connected to the top of the rotating shaft one 461 and coaxially arranged with the rotating shaft one 461. The rotating shaft two 464 is rotatably connected to the lifting part 43 and coaxially arranged with the rotating shaft one 461. The spline shaft 465 is connected to the bottom end of the rotating shaft two 464 and coaxially arranged with the rotating shaft one 461. When the lifting part 43 moves downward, the rotating shaft one 461 can move downward, so that the spline shaft 465 can be inserted into the spline sleeve 463. Thus, when the rotating shaft one 461 rotates, the rotating shaft two 464 can be driven to rotate synchronously through the cooperation between the spline sleeve 463 and the spline shaft 465. The plunger 466 is rotatably connected to the top of the rotating shaft two 464 and located in the cavity two 48. The guide rod 467 is connected to the rotating shaft two 464 and provided with a mounting groove at the end away from the rotating shaft two 464. The guide protrusion 469 is connected to the mounting groove of the guide rod 467 through the elastic part 468. The end away from the elastic part 468 of the guide protrusion 469 is in a semispherical shape, so that the guide protrusion 469 can be separated from the guide groove 411.

[0048] When the aeration membrane 32 on the aeration head 3 is blocked, the oxygen in the cavity one 47 and the cavity two 48 cannot continue to discharge outward from the aeration membrane 32, so that the gas pressure of the oxygen in the cavity one 47 and the cavity two 48 increases, thereby driving the locking part in the elastic locking piece 45 to move and compress the spring, so as to release the locking of the lifting part 43 by the elastic locking piece 45. The gas pressure in the cavity one 47 and the cavity two 48 drives the lifting part 43 to move downward, so as to connect the cavity three 49 and the cavity one 47, so that the oxygen entering the cavity one 47 can discharge outward from the aeration hole 311. When the lifting part 43 moves downward, the rotating shaft two 464 moves downward, so that the spline shaft 465 is limited to be inserted into the spline sleeve 463, and the plunger 466 is inserted into the separation ring one 41, thereby separating the cavity one 47 and the cavity two 48 through the plunger 466 and the separation ring one 41;

[0049] When the rotating shaft two 464 moves downward, the guide rod 467 moves downward, and the guide protrusion 469 moves downward, so that the guide protrusion 469 is arranged at the top position of the guide groove 411. At this time, the fan blade 462 can drive the rotating shaft one 461 to rotate by the flow of oxygen entering the cavity one 47, so that the rotating shaft two 464 rotates under the cooperation of the spline sleeve 463 and the spline shaft 465. When the rotating shaft two 464 rotates, the guide rod 467 moves along a circular track. When the guide rod 467 moves to the top position of the guide groove 411, the guide protrusion 469 can move towards the extension installation groove under the action of the elastic part 468, so that the guide protrusion 469 is inserted into the guide groove 411. When the rotating shaft two 464 continues to move, the guide protrusion 469 can be guided by the guide groove 411, so that the guide protrusion 469 drives the guide rod 467 and the rotating shaft two 464 to move downward under the guidance of the guide groove 411. After the guide protrusion 469 passes through the low point position of the guide groove 411, the guide rod 467 and the rotating shaft two 464 are driven to move upward and reset, so as to realize the reciprocating movement of the plunger 466 moving downward and upward, and drive the lifting part 43 to move up and down. When the lifting part 43 moves up and down, the cavity one 47 and the cavity three 49 keep in communication. At this time, the plunger 466 can continuously push oxygen into the cavity two 48, so as to form a pulse to the aeration membrane 32, so as to clean and restore the use of the aeration membrane 32. When the plunger 466 moves upward, it will be blocked by the oxygen gas pressure in the cavity two 48, so as to avoid the plunger 466 from being separated from the guide groove 411 under the action of the gas pressure in the cavity one 47 (the working principle of the plunger 466 is the same as that of the plunger in a water injection well);

[0050] After the aeration membrane 32 is cleaned, the oxygen pressure inside the cavity two 48 decreases, which reduces the blocking force of the oxygen pressure inside the cavity two 48 on the plunger 466, so that the plunger 466 is pushed upward under the action of the pressure inside the cavity one 47. When the plunger 466 moves upward, the shaft two 464 moves upward to make the plunger 466 disengage from the separation ring one 41 and enter the cavity two 48, so that the cavity one 47 and the cavity two 48 are communicated, and the guide protrusion 469 is extended into the installation groove in the guide rod 467 and compresses the elastic part 468. When the shaft two 464 moves upward, the lifting part 43 moves upward. When the plunger 466 enters the cavity two 48, and the lifting part 43 has not returned to the original position, the cavity two 48 and the cavity three 49 are communicated with the cavity one 47, so that the oxygen in the cavity one 47 can be transported into the cavity two 48 and the cavity three 49 respectively, and then discharged into the wastewater after forming bubbles from the aeration membrane 32 and the aeration hole 311, so that the oxygen pressure in the cavity one 47, the cavity two 48 and the cavity three 49 is greatly reduced, so that the locking part is pushed to reset under the action of the spring inside the elastic locking part 45, and the lifting part 43 is pushed upward by the inclined surface on the locking part, so that the lifting part 43 is reset and separates the cavity one 47 and the cavity three 49.

[0051] Working principle:

[0052] When the wastewater generated in the production of dairy products is subjected to aeration treatment, the wastewater is first transported into the wastewater pool 1, and the aeration mechanism 2 is started to transport oxygen into the cavity one 47 in the plurality of aeration heads 3. At this time, the cavity one 47 is communicated with the cavity two 48, and the cavity one 47 is not communicated with the cavity three 49 under the action of the lifting part 43, so that the oxygen in the cavity one 47 enters the cavity two 48 and is discharged into the wastewater after being divided into a plurality of small bubbles by the aeration membrane 32, so that the wastewater is subjected to aeration treatment by the plurality of small bubbles.

[0053] When the aeration head 3 is blocked by oil and protein in the wastewater, oxygen cannot be discharged from the aeration head 3 into the wastewater, so that the oxygen pressure in the cavities one 47 and two 48 gradually increases, the locking part in the elastic locking part 45 is pushed by the gas pressure in the cavities one 47 and two 48, and the spring is compressed, so that the locking of the lifting part 43 by the elastic locking part 45 is released, so that the gas pressure in the cavities one 47 and two 48 pushes the lifting part 43 to move downward, so that the cavities one 47 and three 49 are communicated, the lifting part 43 moves downward to push the rotating shaft two 464 to move downward, so that the spline shaft 465 is limited to be inserted into the spline sleeve 463 at the top of the rotating shaft one 461, and the guide rod 467 is lowered to a height corresponding to the top point of the guide groove 411, and the guide protrusion 469 is located in the mounting groove on the guide rod 467 under the block of the inner wall of the separation ring one 41, the elastic part 468 is in a compressed state, and the plunger 466 extends into the separation ring one 41, so that the cavities one 47 and two 48 are separated by the plunger 466;

[0054] After the aeration mechanism 2 sends oxygen into the cavity one 47 in the aeration head 3, the fan blade 462 is pushed by the flow of oxygen, so that the fan blade 462 drives the rotating shaft one 461 to rotate, the rotating shaft one 461 rotates to drive the rotating shaft two 464 to rotate through the cooperation between the spline sleeve 463 and the spline shaft 465, the rotating shaft two 464 rotates to drive the guide rod 467 to move along a circular track, after the guide rod 467 moves to the top point of the guide groove 411, the guide protrusion 469 is pushed by the elastic part 468 to move towards the direction of the extension mounting groove, so that the guide protrusion 469 extends into the top point of the guide groove 411, at this time the rotating shaft two 464 continues to rotate to move up and down under the guidance of the guide groove 411, and the spline shaft 465 is always limited to be inserted into the spline sleeve 463, the rotating shaft two 464 moves up and down to drive the plunger 466 to move up and down in the separation ring one 41, so as to push the oxygen in the cavity one 47 into the cavity two 48 through the plunger 466, thereby forming a pulse to the aeration membrane 32, so as to clean the aeration membrane 32, and the oxygen in the cavity two 48 cannot be delivered into the wastewater through the aeration membrane 32 before the aeration membrane 32 is cleaned;

[0055] When the plunger 466 moves upward in the separation ring one 41, the plunger 466 is blocked by the air pressure inside the cavity two 48 to prevent the guiding protrusion 469 from moving out of the guiding slot 411 when the plunger 466 moves upward under the air pressure inside the cavity one 47. After the aeration membrane 32 is unblocked, the oxygen inside the cavity two 48 can be discharged into the wastewater through the aeration membrane 32 to reduce the oxygen pressure inside the cavity two 48. At this time, the plunger 466 can be pushed out of the separation ring one 41 by the air pressure inside the cavity one 47 and reset, and the shaft two 464, the spline shaft 465 and the guiding rod 467 move upward. Under the blockage of the guiding slot 411, the guiding protrusion 469 moves towards the direction of the installation slot and presses the elastic part 468. When the shaft two 464 moves upward, the lifting part 43 can be lifted. Before the plunger 466 moves out of the separation ring one 41 but is not completely reset, the cavity one 47, the cavity two 48 and the cavity three 49 are connected. At this time, the oxygen inside the cavity one 47, the cavity two 48 and the cavity three 49 is discharged into the wastewater through the aeration head 3 and the aeration hole 311 to reduce the air pressure inside the cavity one 47, the cavity two 48 and the cavity three 49, so that the locking part inside the elastic locking part 45 is reset under the action of the spring and the lifting part 43 is lifted by the inclined surface on the locking part until the lifting part 43 is reset and locked again by the elastic locking part 45.

[0056] Although the embodiments of the present application have been shown and described above, it should be understood by those skilled in the art that the above embodiments are exemplary and cannot be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A dairy wastewater treatment device comprising a wastewater tank (1), an aeration mechanism (2) and an aeration head (3), characterized by, The utility model also includes dredging mechanism (4), and the dredging mechanism (4) includes separation ring one (41), lifting part (43), separation ring two (44), elastic locking piece (45) and dredging piece (46), separation ring one (41) is connected in aeration head (3), separation ring two (44) is connected on separation ring one (41), lifting part (43) is connected in aeration head (3) slidingly, elastic locking piece (45) is connected in aeration head (3), and the dredging piece (46) is connected in aeration head (3) and separation ring one (41), and the inside of aeration head (3) and separation ring one (41) forms cavity one (47), cavity two (48) and cavity three (49) with the dredging mechanism (4), aeration head (3) is provided with aeration membrane (32), and aeration head (3) is provided with aeration hole (311), and aeration membrane (32) and aeration hole (311) are communicated with cavity two (48) and cavity three (49) respectively; Before aeration membrane (32) is blocked, cavity one (47) and cavity two (48) are communicated, and oxygen can enter cavity two (48) through cavity one (47) and be discharged into waste water by aeration membrane (32); After aeration membrane (32) is blocked, cavity one (47) is communicated with cavity three (49), and oxygen can enter cavity three (49) through cavity one (47) and be discharged into waste water by aeration hole (311), simultaneously driving dredging piece (46) to dredge aeration membrane (32).

2. The dairy production wastewater treatment apparatus according to claim 1, characterized in that, Cavity one (47) is formed by the inside of separation ring one (41), the inside of separation ring two (44), the top of lifting part (43) and the inner wall of aeration head (3), cavity two (48) is formed by the top of separation ring one (41), the inside of separation ring two (44) and the inner wall of aeration head (3), and cavity three (49) is formed by the outside of separation ring two (44), the bottom of lifting part (43) and the inner wall of aeration head (3).

3. The dairy production wastewater treatment device according to claim 1, characterized in that, Elastic locking piece (45) includes locking part and spring, and the locking part is connected with the inner wall of aeration head (3) through the spring.

4. The dairy production wastewater treatment device according to claim 3, characterized in that, The side of locking part close to lifting part (43) is provided with inclined surface.

5. The dairy production wastewater treatment device according to claim 1, characterized in that, Aeration hole (311) is smaller than the air hole on aeration membrane (32).

6. The dairy production wastewater treatment device according to claim 1, characterized in that, Separation ring one (41) is provided with guide groove (411), and the guide groove (411) is inclined circular shape, and the guide groove (411) has vertex position and low point position.

7. The dairy production wastewater treatment device according to claim 6, characterized in that, Dredging piece (46) includes pivot one (461), fan blade (462) and spline sleeve (463), pivot one (461) is rotatably connected in aeration head (3), fan blade (462) is connected on the outside of pivot one (461), and spline sleeve (463) is connected on the top of pivot one (461).

8. The dairy production wastewater treatment device according to claim 7, characterized in that, Dredging piece (46) also includes pivot two (464), spline shaft (465) and plunger (466), pivot two (464) is rotatably connected on lifting part (43), spline shaft (465) is connected on the bottom end of pivot two (464), and plunger (466) is connected on the top of pivot two (464).

9. The dairy production wastewater treatment device according to claim 8, characterized in that, The dredging piece (46) further comprises a guide rod (467), an elastic part (468) and a guide protrusion (469), the guide rod (467) is connected to the second rotating shaft (464), and the end, away from the second rotating shaft (464), of the guide rod (467) is provided with a mounting groove; the guide protrusion (469) is connected to the mounting groove on the guide rod (467) through the elastic part (468).

10. The dairy production wastewater treatment device according to claim 9, characterized in that, The end, away from the elastic part (468), of the guide protrusion (469) is hemispherical.

Images