Efficient fatty acid wastewater separation device and separation method

Abstract

The invention relates to the technical field of fatty acid wastewater treatment, in particular to an efficient fatty acid wastewater separation device and method.The efficient fatty acid wastewater separation device comprises a mixing and filtering barrel, a rotary mixing device, a rotary filtering device, a dirt collecting device, a rotary driving shaft and an interval driving device; an oil-water separation chamber is arranged above the filtering chamber, the rotary conveying device is installed in the filtering chamber of the mixing filtering barrel, a rotary spray head is arranged at the water outlet end of the rotary conveying device, the rotary filtering device is installed between the filtering chamber and the oil-water separation chamber, and the dirt collecting device is installed on the outer side of the mixing filtering barrel. The rotary driving shaft is installed in the mixing and filtering barrel, the interval driving device is installed above the rotary driving shaft and used for driving the rotary driving shaft to rotate, and the separation efficiency and the separation quality can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of fatty acid wastewater treatment, in particular to a fatty acid wastewater high-efficiency separation device, and in particular to a separation method of the fatty acid wastewater high-efficiency separation device. Background Art

[0002] Fatty acid wastewater usually comes from the fields of oil processing, food processing, biodiesel production, etc. These wastewaters contain a large amount of fatty acids and other organic substances, which need to be effectively treated to meet the discharge standards or achieve resource recycling. At the same time, such wastewater contains a large amount of fatty acids, glycerol, surfactants, oils, etc., showing good emulsification and affinity. A small amount can cause the COD value of the water body to increase rapidly, which makes the treatment more difficult.

[0003] Chinese patent CN118324243A discloses a fatty acid wastewater resource recovery and treatment device and process, including a containing cylinder with a hollow interior and an opening facing upward, a filtering unit for filtering the fatty acid wastewater in the containing cylinder is arranged in the containing cylinder, and a recovery unit for recovering the fatty acid wastewater after filtering is arranged on the containing cylinder; by making the fatty acid wastewater injected into the containing cylinder move, a vortex effect is generated, so that the product combined by the reaction of the chemical flocculant and the reactant is accelerated to suspend upward, so as to be collected, effectively improving the efficiency and effect of the resource recovery and treatment of the fatty acid wastewater.

[0004] The above-mentioned device makes the fatty acid wastewater injected into the containing cylinder move to generate a vortex effect, so that the product of the reaction of the chemical flocculant and the reactant is accelerated to suspend upward. Although the above-mentioned scheme can effectively accelerate the coagulation of oil and fat through the chemical flocculant, when the oil and fat are removed, they are directly discharged and squeezed out through the discharge port. This separation and discharge method is difficult to accurately and effectively separate and discharge wastewater and oil, resulting in poor separation effect. At the same time, the device can only inject a certain amount of fatty acid wastewater for separation each time when separating wastewater. Only after separation can the next operation be carried out. Continuous filtering and separation cannot be performed, resulting in poor work efficiency. Summary of the invention

[0005] In view of the above problems, a fatty acid wastewater high-efficiency separation device and a separation method are provided, and the separation efficiency and separation quality can be effectively improved by the fatty acid wastewater high-efficiency separation device.

[0006] In order to solve the problems of the prior art, the present invention provides a fatty acid wastewater efficient separation device, comprising a mixing filter barrel, a rotating mixing device, a rotating filtering device, a dirt collecting device, a rotating driving shaft and an interval driving device, wherein a filtering chamber is arranged inside the mixing filter barrel, an oil-water separation chamber is arranged above the filtering chamber, a rotating conveying device is installed in the filtering chamber of the mixing filter barrel, a rotating nozzle is arranged at the water outlet end of the rotating conveying device, the rotating conveying device is used to convey fatty acid wastewater to the inside of the mixing filter barrel, the rotating filtering device is installed between the filtering chamber and the oil-water separation chamber, the rotating filtering device is used to separate and filter solid dirt in the fatty acid wastewater, the dirt collecting device is installed on the outside of the mixing filter barrel, the dirt collecting device is communicated with the inside of the filtering chamber, the rotating driving shaft is installed inside the mixing filter barrel, the bottom of the rotating driving shaft is connected to the rotating nozzle, the outside of the rotating driving shaft is connected to the rotating filtering device, the interval driving device is installed above the rotating driving shaft, and the interval driving device is used to drive the rotating driving shaft to rotate.

[0007] Preferably, a sediment collecting bucket is installed at the bottom of the mixing filter barrel, a sewage pipe is provided at the bottom of the sediment collecting bucket, a waste water pipe is provided on the side of the mixing filter barrel, the waste water pipe is connected to the oil-water separation chamber, a grease layer inspection tube is installed on the top of the mixing filter barrel, an oil level detector is provided on the side of the grease layer inspection tube, and an oil drain pipe is provided on the side of the grease layer inspection tube.

[0008] Preferably, a guide blade is provided inside the rotating nozzle, a stirring blade is provided outside the rotating nozzle, a delivery pipeline is also installed on the rotating nozzle, the output end of the delivery pipeline is connected to the rotating nozzle, and a delivery pump is installed at the input end of the delivery pipeline.

[0009] Preferably, the rotating filtering device includes a mounting bracket rotatably mounted inside a mixing filter barrel, a plurality of rotating brushes are provided on the mounting bracket, a rotating mounting seat is installed above the mounting bracket, a dirt filter screen is installed on the rotating mounting seat, a pressure mixing cover plate is installed on the top of the rotating mounting seat, the pressure mixing cover plate is fixedly connected to the rotating drive shaft, a compression gap is provided between the pressure mixing cover plate and the dirt filter screen, and the rotating filtering device also includes a reflux filter tube installed on the side of the mixing filter barrel.

[0010] Preferably, a plurality of stirring protrusions are provided on the top of the pressure mixing cover plate, and inclined flow holes are provided on the stirring protrusions.

[0011] Preferably, the dirt collecting device includes a dirt collecting rail installed on the side of the mixing filter barrel, the dirt collecting rail is connected to the filter chamber inside the mixing filter barrel, a dirt limiter is installed inside the dirt collecting rail, an automatic dredging device is also provided on the dirt collecting rail, an annular closing plate is also installed at the liquid inlet end of the dirt collecting rail, and a first linear drive is also installed on the outer side of the dirt collecting rail, and the first linear drive is used to drive the annular closing plate to rise and fall.

[0012] Preferably, the dirt limiting member comprises a plurality of spliced ​​filter rings, a plurality of material retaining grooves are arranged on the spliced ​​filter rings, and a plurality of layers of material retaining nets are arranged inside the material retaining grooves.

[0013] Preferably, the automatic unclogging device comprises a flushing pipe installed at the top of the dirt collecting rail, and the automatic unclogging device further comprises a cleaning pipe installed at the bottom of the dirt collecting rail.

[0014] Preferably, the interval drive device includes a first transmission contact head installed on the top of the rotating drive shaft, a buffer spring is installed between the first transmission contact head and the rotating drive shaft, the interval drive device also includes a fixed bracket installed on the top of the mixing filter barrel, a lifting plate is installed on the fixed bracket, a rotating driver is installed on the lifting plate, a second transmission contact head is installed at the output end of the rotating driver, the second transmission contact head is coaxially arranged with the first transmission contact head, a second linear driver is also installed on the fixed bracket, and the output end of the second linear driver is connected to the lifting plate.

[0015] A separation method of a fatty acid wastewater high-efficiency separation device comprises the following steps;

[0016] S1. The fatty acid wastewater is sent into the filter chamber of the mixing filter barrel through a rotating conveying device, and the rotating nozzle of the rotating conveying device is started to make it start to spirally rotate and spray the wastewater, forming a preliminary vortex effect. The wastewater rotates under the drive of the rotating nozzle, driving the wastewater in the entire filter chamber to rotate synchronously, promoting the floating of solid dirt and grease.

[0017] S2. As the wastewater rotates, the rotating filter device starts to work, intercepting and filtering the solid dirt in the wastewater. The filtered solid dirt diffuses to the inner wall of the mixed filter barrel under the action of the rotating water flow, and is finally captured by the dirt collection device to avoid clogging problems.

[0018] S3. The wastewater after preliminary filtration enters the oil-water separation chamber and continues to rotate spirally under the drive of the rotating filter device. The rotating motion accelerates the rising speed of the grease, causing the grease to quickly gather on the top of the mixed filter barrel. The detection mechanism in the mixed filter barrel identifies and detects the floating grease layer. When it is detected that the grease layer reaches the preset height, the corresponding discharge valve is automatically opened to discharge the grease and filtered water through different discharge valves to achieve oil-water separation.

[0019] S4. During the startup phase, the interval drive device provides additional power to the rotating drive shaft to help it quickly reach a stable speed. Once the rotating drive shaft reaches the predetermined speed, the interval drive device stops working, and the rotation of the rotating drive shaft is controlled by the inertia force of the water flow and the continuous rotation of the rotating nozzle, entering an energy-saving and efficient operation state, and continuously separating and treating the fatty acid wastewater.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. This device uses an innovative rotating mixing and filtering design and the vortex effect formed by the rotating nozzle to effectively promote the rapid floating and separation of grease and solid dirt in the wastewater. The rotating filter device further intercepts solid impurities in the wastewater to prevent them from entering the oil-water separation chamber, thereby greatly improving the separation accuracy between grease and water. At the same time, the automated detection and discharge mechanism ensures that the grease layer is accurately identified and discharged independently, effectively reducing the problem of incomplete separation caused by mixed discharge.

[0022] 2. The internal structure of the device is exquisitely designed, which realizes the continuous injection and continuous separation of fatty acid wastewater. Compared with the traditional intermittent operation mode, this device does not need to wait for one separation to be completed before the next operation, which greatly improves the work efficiency.

[0023] 3. The built-in dirt collection device of this device captures and collects the filtered solid dirt in time, effectively preventing the accumulation and blockage of dirt in the filtration system, and ensuring the long-term stable operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional schematic diagram of a highly efficient separation device for fatty acid wastewater.

[0025] Figure 2 This is a front view of a highly efficient fatty acid wastewater separation device.

[0026] Figure 3 yes Figure 2 Cross-sectional view at section AA.

[0027] Figure 4 It is a cutaway stereogram of a highly efficient fatty acid wastewater separation device.

[0028] Figure 5 yes Figure 4 A partial enlarged view of point B in the middle.

[0029] Figure 6 yes Figure 4 A partial enlarged view of point C in the middle.

[0030] Figure 7 A three-dimensional diagram of a rotary filter device in a fatty acid wastewater high-efficiency separation device Figure 1 .

[0031] Figure 8 A three-dimensional diagram of a rotary filter device in a fatty acid wastewater high-efficiency separation device Figure 2 .

[0032] Fig. 9It is an exploded view of the dirt collection device in a high-efficiency separation device for fatty acid wastewater.

[0033] Fig.10 yes Fig. 9 A partial enlarged view of point D in the middle.

[0034] The numbers in the figure are:

[0035] 1. Mixing filter barrel; 11. Filter chamber; 12. Oil-water separation chamber; 13. Sediment collection bucket; 14. Drain pipe; 15. Wastewater pipe; 16. Grease layer inspection pipe; 17. Oil level detector; 18. Drain pipe; 2. Rotating conveying device; 21. Rotating nozzle; 22. Guide blade; 23. Stirring blade; 24. Conveying pipeline; 3. Rotating filter device; 31. Mounting bracket; 32. Rotating brush; 33. Rotating mounting seat; 34. Pressure mixing cover plate; 341. Stirring bump; 342. Inclined flow hole; 35. Reflux filter tube; 36. Dirt filter; 4. Dirt collecting device; 41. Dirt collecting rail; 411. Annular closing plate; 412. First linear drive; 42. Dirt stopper; 421. Spliced ​​filter ring; 422. Material clamping groove; 423. Material clamping net; 43. Automatic dredging device; 431. Flushing pipeline; 432. Cleaning pipeline; 5. Rotating drive shaft; 6. Interval drive device; 61. Second linear drive; 62. Rotating drive; 63. First transmission contact head; 64. Buffer spring; 65. Second transmission contact head; 66. Fixed bracket; 67. Lifting plate. DETAILED DESCRIPTION

[0036] In order to further understand the features, technical means, specific objectives and functions of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0037] See also Figures 1 to 10As shown, a fatty acid wastewater efficient separation device comprises a mixing filter barrel 1, a rotating mixing device, a rotating filter device 3, a dirt collection device 4, a rotating drive shaft 5 and a spacing drive device 6. A filter chamber 11 is provided inside the mixing filter barrel 1, and an oil-water separation chamber 12 is provided above the filter chamber 11. The rotating conveying device 2 is installed in the filter chamber 11 of the mixing filter barrel 1, and a rotating nozzle 21 is provided at the water outlet end of the rotating conveying device 2. The rotating conveying device 2 is used to transport fatty acid wastewater to the inside of the mixing filter barrel 1. The rotating filter device 3 is installed between the filter chamber 11 and the oil-water separation chamber 12, and the rotating filter device 3 is used to separate and filter solid dirt in the fatty acid wastewater. The dirt collection device 4 is installed on the outside of the mixing filter barrel 1, and the dirt collection device 4 is connected to the inside of the filter chamber 11; the rotating drive shaft 5 is installed inside the mixing filter barrel 1, and the bottom of the rotating drive shaft 5 is connected to the rotating nozzle 21, and the outside of the rotating drive shaft 5 is connected to the rotating filter device 3. The interval driving device 6 is installed above the rotating driving shaft 5, and the interval driving device 6 is used to drive the rotating driving shaft 5 to rotate.

[0038] The fatty acid wastewater is sent to the filter chamber 11 of the mixed filter barrel 1 through the rotating conveying device 2. At this time, the rotating nozzle 21 starts to rotate spirally to spray the wastewater, forming a preliminary vortex effect. The wastewater rotates under the drive of the rotating nozzle 21, driving the wastewater in the entire filter chamber 11 to rotate synchronously. This rotational motion promotes the floating of solid dirt and grease. At the same time, the rotating filter device 3 starts to work to intercept and filter the solid dirt in the wastewater. The filtered solid dirt diffuses to the inner wall of the mixed filter barrel 1 under the action of the rotating water flow, and is finally captured by the dirt collection device 4, avoiding the clogging problem. The wastewater after preliminary filtration enters the oil-water separation chamber 12 and continues to rotate spirally under the drive of the rotating filter device 3. This rotation accelerates the rising speed of grease, causing the grease to quickly gather at the top of the mixed filter barrel 1. A detection mechanism is provided in the mixed filter barrel 1, which can identify and detect the floating grease layer, and then automatically open the corresponding discharge valve to discharge the grease and clean water respectively. The interval drive device 6 provides additional power to the rotating drive shaft 5 during the startup phase, helping it to quickly reach a stable speed. Once the predetermined speed is reached, the interval drive device 6 stops working, and the rotation of the rotating drive shaft 5 is driven by the inertial force of the water flow and the continuous rotation of the rotating nozzle 21, thereby achieving energy-saving and efficient operation. The device realizes continuous and efficient separation and treatment of fatty acid wastewater. Not only does it improve the separation accuracy of grease and wastewater, but it also significantly improves the overall working efficiency of the device.

[0039] See also Figures 1 to 3As shown, a sediment collecting bucket 13 is installed at the bottom of the mixing filter barrel 1, a sewage pipe 14 is provided at the bottom of the sediment collecting bucket 13, a waste water pipe 15 is provided at the side of the mixing filter barrel 1, and the waste water pipe 15 is connected to the oil-water separation chamber 12, a grease layer inspection tube 16 is installed at the top of the mixing filter barrel 1, an oil level detector 17 is provided at the side of the grease layer inspection tube 16, and an oil drain pipe 18 is provided at the side of the grease layer inspection tube 16.

[0040] The fatty acid wastewater is first sent to the filter chamber 11 of the mixed filter barrel 1 through the rotating conveying device 2. At this time, the rotating nozzle 21 installed at the bottom of the rotating drive shaft 5 starts to work, spraying the wastewater in a spiral rotation manner, thereby forming a strong vortex effect in the filter chamber 11. This vortex not only promotes the uniform distribution of the wastewater, but also preliminarily accelerates the separation of solid dirt and grease. The wastewater is kept in a rotating state under the continuous drive of the rotating nozzle 21, driving the wastewater in the entire filter chamber 11 to rotate synchronously. During the rotation process, the solid dirt and grease in the wastewater gradually float and gather under the action of centrifugal force. At the same time, the rotating filter device 3 starts to work, using its fine filtering structure to efficiently intercept and filter the solid dirt in the wastewater. The filtered solid dirt diffuses to the inner wall of the mixed filter barrel 1 under the action of the rotating water flow, and is finally captured by the dirt collection device 4 arranged on the outside of the mixed filter barrel 1, effectively preventing the clogging of the filter system. The wastewater that has been preliminarily filtered then enters the oil-water separation chamber 12. Under the continuous drive of the rotating filter device 3, the wastewater continues to spirally rotate in the chamber. This rotational motion further accelerates the rising speed of the grease, causing it to quickly gather on the top of the mixed filter barrel 1. In order to accurately control the discharge of grease, a grease layer inspection tube 16 is installed on the top of the mixed filter barrel 1, and an oil level detector 17 is provided on its side to monitor the thickness of the grease layer in real time. Once the preset oil level is reached, the system will automatically open the oil drain pipe 18 to discharge the grease. Considering the sediment that may be generated during the wastewater treatment process, a sediment collection bucket 13 is designed at the bottom of the mixed filter barrel 1. A sewage pipe 14 is provided at the bottom of the collection bucket to facilitate regular cleaning and discharge of deposited solid waste. At the same time, a sewage pipe 15 is also provided on the side of the mixed filter barrel 1, which is connected to the oil-water separation chamber 12 for discharging treated sewage. The continuity and efficiency of the entire treatment process are ensured.

[0041] See also Figures 3 to 5 As shown, a guide blade 22 is provided inside the rotating nozzle 21, and a stirring blade 23 is provided outside the rotating nozzle 21. A delivery pipe 24 is also installed on the rotating nozzle 21. The output end of the delivery pipe 24 is connected to the rotating nozzle 21, and a delivery pump is installed at the input end of the delivery pipe 24.

[0042] When the fatty acid wastewater is sent into the delivery pipe 24 through the delivery pump and flows to the rotating nozzle 21, the sewage first passes through the guide blades 22. These guide blades 22 are cleverly designed to use the power of the water flow to produce a rotation effect. As the sewage continues to flow in, the guide blades 22 are impacted by the water flow and begin to rotate, thereby driving the entire rotating nozzle 21 to rotate. While the rotating nozzle 21 rotates, the stirring blades 23 on its outside begin to play a role. The design of the stirring blades 23 enables it to effectively guide the water flow to the surroundings during the rotation process, forming a strong vortex flow. This vortex flow not only enhances the mixing effect of the wastewater, but also promotes the further separation of solid dirt and grease in the wastewater. The centrifugal force in the vortex flow causes the lighter grease to float to the water surface. As the rotating nozzle 21 continues to rotate, the vortex flow circulates continuously in the filter chamber 11 of the mixing filter barrel 1. This continuous vortex flow not only maintains the uniform distribution of the wastewater, but also improves the efficiency of filtration and separation. The solid dirt in the vortex flow is effectively intercepted and filtered by the rotating filter device 3, while the grease gradually accumulates on the top of the mixing filter barrel 1.

[0043] See also Figure 4 , Figure 7 and Figure 8 As shown, the rotating filtering device 3 includes a mounting bracket 31 rotatably mounted inside the mixing filter barrel 1, a plurality of rotating brushes 32 are provided on the mounting bracket 31, a rotating mounting seat 33 is installed above the mounting bracket 31, a dirt filter screen 36 is installed on the rotating mounting seat 33, a pressure mixing cover plate 34 is installed on the top of the rotating mounting seat 33, the pressure mixing cover plate 34 is fixedly connected to the rotating drive shaft 5, a compression gap is provided between the pressure mixing cover plate 34 and the dirt filter screen 36, and the rotating filtering device 3 also includes a reflux filter tube 35 installed on the side of the mixing filter barrel 1.

[0044] When the fatty acid wastewater enters the filter chamber 11 of the mixing filter barrel 1 through the rotating conveying device 2, the rotating drive shaft 5 starts to work, driving the pressure mixing cover plate 34 to rotate. The rotation of the pressure mixing cover plate 34 further drives the sewage in the oil-water separation chamber 12 to form a vortex, enhances the vortex effect in the wastewater, and promotes the rapid rise of oil. At the same time, the rotation of the pressure mixing cover plate 34 also drives the rotating mounting seat 33 and the dirt filter 36 to rotate synchronously. The dirt filter 36 serves as the main filtering element to intercept solid dirt in the wastewater. During the rotation process, the outer wall of the dirt filter 36 continuously rubs against the rotating brush 32, effectively preventing dirt from accumulating on the surface of the filter, thereby ensuring the filtering efficiency.

[0045] As the filtering process continues, some dirt may gradually penetrate into the holes of the dirt filter 36, resulting in a decrease in filtering efficiency. At this time, it is necessary to stop the conveying of the rotating conveying device 2 and the discharge of the mixing filter barrel 1, and drive the rotating drive shaft 5 to rotate in the opposite direction through the interval driving device 6. The reverse rotation of the rotating drive shaft 5 will drive the pressure mixing cover plate 34 to rotate in the opposite direction synchronously, and the synchronous reverse rotation of the pressure mixing cover plate 34 will suck the wastewater in the oil-water separation chamber 12 into the compression gap. The sewage is squeezed in the compression gap and is forced to flow from the upper layer of the dirt filter 36 to the lower layer, forming a reverse flushing effect. This flushing action can effectively flush out the dirt attached to the holes of the dirt filter 36 and restore the flowability of the filter. The reflux filter tube 35 plays a role of circulating filtration in the system. Its inlet and outlet are both provided with filter layers to ensure that the circulating sewage is filtered. One end is connected to the filter chamber 11, and the other end is connected to the oil-water separation chamber 12 to form a closed loop. The device continuously and efficiently separates and treats fatty acid wastewater, while ensuring the cleanliness and unobstructed flow of the dirt filter 36.

[0046] See also Figure 4 and Figure 8 As shown, a plurality of stirring protrusions 341 are provided on the top of the pressure mixing cover plate 34 , and inclined flow holes 342 are provided on each of the stirring protrusions 341 .

[0047] The fatty acid wastewater is fed into the filter chamber 11 of the mixing filter barrel 1 through the rotating conveying device 2. The rotating drive shaft 5 is started, driving the pressure mixing cover plate 34 to rotate. The stirring protrusion 341 on the top of the pressure mixing cover plate 34 rotates accordingly, effectively driving the sewage in the oil-water separation chamber 12 to form a vortex. This vortex effect promotes the rapid rise of oil and fat in the wastewater.

[0048] When it is found that the filtration efficiency of the dirt filter 36 decreases, the conveying of the rotating conveying device 2 and the discharge of the mixing filter barrel 1 are stopped. The interval driving device 6 drives the rotating drive shaft 5 to rotate in the opposite direction, thereby driving the pressure mixing cover plate 34 to rotate in the opposite direction synchronously. When the inclined flow hole 342 on the pressure mixing cover plate 34 rotates in the opposite direction, the inclined design of the inclined flow hole 342 guides the sewage in the oil-water separation chamber 12 to flow in the opposite direction to the compression gap. The sewage is squeezed in the compression gap and is forced to flow from the upper layer of the dirt filter 36 to the lower layer, forming a strong reverse flushing effect. This flushing action effectively washes away the dirt attached to the holes of the dirt filter 36 and restores the flowability of the filter.

[0049] See also Figure 3 and Figure 4As shown, the dirt collecting device 4 includes a dirt collecting rail 41 installed on the side of the mixing filter barrel 1, the dirt collecting rail 41 is connected to the filter chamber 11 inside the mixing filter barrel 1, a dirt limiting member 42 is installed inside the dirt collecting rail 41, an automatic dredging device 43 is also provided on the dirt collecting rail 41, an annular closing plate 411 is also installed at the liquid inlet end of the dirt collecting rail 41, and a first linear drive 412 is also installed on the outer side of the dirt collecting rail 41, and the first linear drive 412 is used to drive the annular closing plate 411 to move up and down.

[0050] After the fatty acid wastewater is rotated, mixed and filtered in the filter chamber 11 of the mixing filter barrel 1, the solid dirt diffuses to the inner wall of the mixing filter barrel 1 under the action of the rotating water flow. The diffused solid dirt is guided into the dirt collection rail 41, collected and limited by the dirt limiter 42 to prevent it from continuing to diffuse to other areas. When it is necessary to clean the dirt in the dirt collection rail 41, the first linear drive 412 is started, driving the annular sealing plate 411 to descend, closing the liquid inlet end of the dirt collection rail 41, and preventing new dirt from entering. After closing, the solid dirt in the dirt collection rail 41 is accumulated to prepare for subsequent cleaning work. In the closed state, the automatic dredging device 43 starts to work. Clean the dirt on the dirt limiter 42. During the cleaning process, the dirt is peeled off and discharged from the dirt collection rail 41 with the water flow or air flow, and enters the subsequent processing flow. After the cleaning is completed, the first linear drive 412 is started again, driving the annular sealing plate 411 to rise, and releasing the closure of the dirt collection rail 41. The dirt collecting rail 41 is reopened to continue collecting solid dirt from the filter chamber 11, thereby effectively improving the continuity and efficiency of wastewater treatment.

[0051] See also Figure 4 , Fig. 9 and Fig.10 As shown, the dirt limiting member 42 includes a plurality of spliced ​​filter rings 421 , a plurality of material clamping grooves 422 are provided on the spliced ​​filter rings 421 , and a plurality of layers of material clamping nets 423 are provided inside the material clamping grooves 422 .

[0052] After the fatty acid wastewater is rotated, mixed and filtered in the filter chamber 11 of the mixing filter barrel 1, the solid dirt diffuses toward the inner wall of the mixing filter barrel 1 under the action of the rotating water flow. The diffused solid dirt is guided into the dirt collection rail 41 and first encounters the splicing filter ring 421. The solid dirt is initially collected and fixed by the clamping groove 422 to prevent it from continuing to flow. At the same time, the multi-layer clamping net 423 clamps and limits the solid dirt entering the clamping groove 422 to prevent the dirt from detaching. As the wastewater treatment continues, the solid dirt on the clamping groove 422 and the multi-layer clamping net 423 gradually accumulates.

[0053] See also Figure 4 and Fig. 9As shown, the automatic dredging device 43 includes a flushing pipe 431 installed on the top of the dirt collecting rail 41, and the automatic dredging device 43 also includes a cleaning pipe 432 installed at the bottom of the dirt collecting rail 41.

[0054] When it is necessary to clean the dirt in the dirt collection rail 41, the first linear drive 412 is started, driving the annular closing plate 411 to descend, closing the liquid inlet end of the dirt collection rail 41 to prevent new dirt from entering. After closing, the solid dirt in the dirt collection rail 41 is accumulated to prepare for the subsequent cleaning work. In the closed state, the automatic dredging device 43 starts to work. First, the flushing pipe 431 installed on the top of the dirt collection rail 41 is started to spray high-pressure water or cleaning agent into the dirt collection rail 41. The high-pressure water or cleaning agent flushes the dirt on the dirt limiter 42, especially the dirt on the clamping groove 422 and the multi-layer clamping net 423, loosening it and partially peeling it off. Subsequently, the cleaning pipe 432 installed at the bottom of the dirt collection rail 41 starts to work. The cleaning pipe 432 may use negative pressure suction or gravity discharge to discharge the washed dirt and water or cleaning agent mixture out of the dirt collection rail 41. The dirt is stripped off and flows with the water through the cleaning pipe 432 to enter the subsequent treatment process, such as a sedimentation tank, a filter or a biological treatment system.

[0055] See also Figures 3 to 6 As shown, the interval driving device 6 includes a first transmission contact head 63 installed on the top of the rotating driving shaft 5, and a buffer spring 64 is installed between the first transmission contact head 63 and the rotating driving shaft 5. The interval driving device 6 also includes a fixed bracket 66 installed on the top of the mixing filter barrel 1, and a lifting plate 67 is installed on the fixed bracket 66. The lifting plate 67 is installed on the rotating driver 62. The output end of the rotating driver 62 is installed with a second transmission contact head 65, and the second transmission contact head 65 is coaxially arranged with the first transmission contact head 63. A second linear driver 61 is also installed on the fixed bracket 66, and the output end of the second linear driver 61 is connected to the lifting plate 67.

[0056] The buffer spring 64 installed between the first transmission contact head 63 and the rotating drive shaft 5 is used to absorb the impact force and vibration during startup and protect the equipment from damage. The output end of the rotating driver 62 is connected to the second transmission contact head 65, and the second transmission contact head 65 is coaxially arranged with the first transmission contact head 63 to ensure the accuracy and stability of power transmission. The second linear driver 61 is installed on the fixed bracket 66, and its output end is connected to the lifting plate 67. During the startup phase, the second linear driver 61 drives the lifting plate 67 to descend, so that the second transmission contact head 65 is in close contact with the first transmission contact head 63, providing additional power for the rotating drive shaft 5 and helping it to quickly reach a stable speed. Once the rotating drive shaft 5 reaches a predetermined speed, the second linear driver 61 stops working, the lifting plate 67 rises, and the second transmission contact head 65 is separated from the first transmission contact head 63. At this time, the rotating drive shaft 5 relies on the inertia of the system itself to maintain rotation, achieving energy-saving and efficient operation.

[0057] A separation method of a fatty acid wastewater high-efficiency separation device comprises the following steps;

[0058] S1. The fatty acid wastewater is sent into the filter chamber 11 of the mixing filter barrel 1 through the rotating conveying device 2, and the rotating nozzle 21 of the rotating conveying device 2 is started to make it start to spirally rotate and spray the wastewater to form a preliminary vortex effect. The wastewater rotates under the drive of the rotating nozzle 21, driving the wastewater in the entire filter chamber 11 to rotate synchronously, thereby promoting the floating of solid dirt and grease.

[0059] S2. As the wastewater rotates, the rotating filter device 3 starts to work, intercepting and filtering the solid dirt in the wastewater. The filtered solid dirt diffuses to the inner wall of the mixing filter barrel 1 under the action of the rotating water flow, and is finally captured by the dirt collecting device 4 to avoid clogging problems.

[0060] S3. The wastewater after preliminary filtration enters the oil-water separation chamber 12 and continues to rotate spirally under the drive of the rotating filter device 3. The rotational motion accelerates the rising speed of the grease, causing the grease to quickly gather on the top of the mixing filter barrel 1. The detection mechanism in the mixing filter barrel 1 identifies and detects the floating grease layer. When it is detected that the grease layer reaches a preset height, the corresponding discharge valve is automatically opened to discharge the grease and filtered water through different discharge valves respectively, thereby realizing oil-water separation.

[0061] S4. During the startup phase, the interval drive device 6 provides additional power to the rotating drive shaft 5 to help it quickly reach a stable rotation speed. Once the rotating drive shaft 5 reaches a predetermined rotation speed, the interval drive device 6 stops working, and the rotation of the rotating drive shaft 5 is controlled by the inertia force of the water flow and the continuous rotation of the rotating nozzle 21, entering an energy-saving and efficient operation state, and continuously separating and treating the fatty acid wastewater.

[0062] The above embodiments only express one or several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A fatty acid wastewater efficient separation device, characterized in that: It comprises a mixing and filtering barrel (1), a rotating mixing device, a rotating filtering device (3), a dirt collecting device (4), a rotating driving shaft (5) and a spacing driving device (6); A filter chamber (11) is provided inside the mixing filter barrel (1), and an oil-water separation chamber (12) is provided above the filter chamber (11); The rotating conveying device (2) is installed in the filter chamber (11) of the mixing filter barrel (1), and a rotating nozzle (21) is provided at the water outlet end of the rotating conveying device (2). The rotating conveying device (2) is used to convey fatty acid wastewater into the mixing filter barrel (1); The rotary filter device (3) is installed between the filter chamber (11) and the oil-water separation chamber (12), and the rotary filter device (3) is used to separate and filter solid dirt in the fatty acid wastewater; The dirt collection device (4) is installed on the outside of the mixing filter barrel (1), and the dirt collection device (4) is connected to the inside of the filter chamber (11); The rotary drive shaft (5) is installed inside the mixing and filtering barrel (1), the bottom of the rotary drive shaft (5) is connected to the rotating nozzle (21), and the outer side of the rotary drive shaft (5) is connected to the rotating filtering device (3); The interval driving device (6) is installed above the rotating driving shaft (5), and the interval driving device (6) is used to drive the rotating driving shaft (5) to rotate.

2. A fatty acid wastewater efficient separation device according to claim 1, characterized in that, A sediment collecting bucket (13) is installed at the bottom of the mixing and filtering barrel (1), a sewage discharge pipe (14) is provided at the bottom of the sediment collecting bucket (13), a waste water discharge pipe (15) is provided at the side of the mixing and filtering barrel (1), the waste water discharge pipe (15) is communicated with the oil-water separation chamber (12), a grease layer inspection pipe (16) is installed at the top of the mixing and filtering barrel (1), an oil level detector (17) is provided at the side of the grease layer inspection pipe (16), and an oil discharge pipe (18) is provided at the side of the grease layer inspection pipe (16).

3. A fatty acid wastewater efficient separation device according to claim 2, characterized in that, A guide blade (22) is arranged inside the rotating nozzle (21), and a stirring blade (23) is arranged outside the rotating nozzle (21). A delivery pipeline (24) is also installed on the rotating nozzle (21), and the output end of the delivery pipeline (24) is connected to the rotating nozzle (21), and a delivery pump is installed at the input end of the delivery pipeline (24).

4. A fatty acid wastewater efficient separation device according to claim 1, characterized in that: The rotary filter device (3) comprises a mounting bracket (31) rotatably mounted inside a mixing filter barrel (1), a plurality of rotating brushes (32) being arranged on the mounting bracket (31), a rotary mounting seat (33) being mounted above the mounting bracket (31), a dirt filter screen (36) being mounted on the rotary mounting seat (33), a pressure mixing cover plate (34) being mounted on the top of the rotating mounting seat (33), the pressure mixing cover plate (34) being fixedly connected to a rotating drive shaft (5), a compression gap being arranged between the pressure mixing cover plate (34) and the dirt filter screen (36), and the rotary filter device (3) further comprises a reflux filter pipe (35) mounted on the side of the mixing filter barrel (1).

5. A fatty acid wastewater efficient separation device according to claim 4, characterized in that: A plurality of stirring protrusions (341) are provided on the top of the pressure mixing cover plate (34), and each stirring protrusion (341) is provided with an inclined flow hole (342).

6. A fatty acid wastewater efficient separation device according to claim 2, characterized in that: The dirt collection device (4) comprises a dirt collection rail (41) installed on the side of the mixing filter barrel (1); the dirt collection rail (41) is connected to the filter chamber (11) inside the mixing filter barrel (1); a dirt stopper (42) is installed inside the dirt collection rail (41); an automatic dredging device (43) is also provided on the dirt collection rail (41); an annular sealing plate (411) is also installed at the liquid inlet end of the dirt collection rail (41); a first linear driver (412) is also installed on the outer side of the dirt collection rail (41); the first linear driver (412) is used to drive the annular sealing plate (411) to move up and down.

7. A fatty acid wastewater efficient separation device according to claim 6, characterized in that: The dirt limiting member (42) comprises a plurality of spliced ​​filter rings (421), a plurality of material retaining grooves (422) are provided on the spliced ​​filter rings (421), and a plurality of material retaining nets (423) are provided inside the material retaining grooves (422).

8. A fatty acid wastewater efficient separation device according to claim 7, characterized in that: The automatic dredging device (43) comprises a flushing pipe (431) installed at the top of the dirt collecting rail (41), and the automatic dredging device (43) further comprises a cleaning pipe (432) installed at the bottom of the dirt collecting rail (41).

9. A fatty acid wastewater efficient separation device according to claim 1, characterized in that: The interval driving device (6) comprises a first transmission contact head (63) mounted on the top of the rotating driving shaft (5), a buffer spring (64) being mounted between the first transmission contact head (63) and the rotating driving shaft (5), the interval driving device (6) further comprises a fixed bracket (66) mounted on the top of the mixing filter barrel (1), a lifting plate (67) being mounted on the fixed bracket (66), a rotating driver (62) being mounted on the lifting plate (67), a second transmission contact head (65) being mounted on the output end of the rotating driver (62), the second transmission contact head (65) being coaxially arranged with the first transmission contact head (63), a second linear driver (61) being further mounted on the fixed bracket (66), the output end of the second linear driver (61) being connected to the lifting plate (67).

10. A separation method of a fatty acid wastewater efficient separation device, using a fatty acid wastewater efficient separation device according to any one of claims 1 to 9, characterized in that: The steps include: S1, delivering fatty acid wastewater into the filter chamber (11) of the mixing filter barrel (1) through the rotating conveying device (2), starting the rotating nozzle (21) of the rotating conveying device (2), causing it to start to rotate spirally to spray the wastewater, thereby forming a preliminary vortex effect. The wastewater rotates under the drive of the rotating nozzle (21), driving the wastewater in the entire filter chamber (11) to rotate synchronously, thereby promoting the floating of solid dirt and grease; S2. As the wastewater rotates, the rotating filter device (3) starts to work, intercepting and filtering the solid dirt in the wastewater. The filtered solid dirt diffuses toward the inner wall of the mixing filter barrel (1) under the action of the rotating water flow, and is finally captured by the dirt collection device (4), avoiding clogging problems. S3, the wastewater after preliminary filtration enters the oil-water separation chamber (12), and continues to rotate spirally under the drive of the rotating filter device (3). The rotating motion accelerates the rising speed of the grease, so that the grease quickly gathers on the top of the mixing filter barrel (1). The detection mechanism in the mixing filter barrel (1) identifies and detects the floating grease layer. When it is detected that the grease layer reaches a preset height, the corresponding discharge valve is automatically opened, and the grease and filtered water are discharged through different discharge valves respectively, thereby achieving oil-water separation; S4. During the startup phase, the interval drive device (6) provides additional power to the rotating drive shaft (5) to help it quickly reach a stable rotation speed. Once the rotating drive shaft (5) reaches a predetermined rotation speed, the interval drive device (6) stops working, and the rotation of the rotating drive shaft (5) is controlled by the inertial force of the water flow and the continuous rotation of the rotating nozzle (21), entering an energy-saving and efficient operation state, and continuously performing separation and treatment of fatty acid wastewater.

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