Anaerobic treatment device and process for juice processing wastewater

Abstract

The invention relates to the field of wastewater treatment, in particular to an anaerobic treatment device and process for juice processing wastewater, which comprises an upper frame and a lower frame, a screening component is mounted between the upper frame and the lower frame, blocking units are arranged on two sides of the lower frame and used for separating suspended precipitates in sewage, and a water supply frame is arranged at the upper end of the upper frame. A water collecting barrel penetrates through the lower side of the lower frame, and large impurities such as fruit residues in sewage can be quickly and effectively intercepted through a screening component when the wastewater enters the device; the large impurities are blocked in a specific area and prevented from entering the subsequent treatment process, the problems of pipeline blockage, equipment abrasion and the like are avoided, higher-quality water inlet conditions are provided for subsequent treatment links such as precipitation and anaerobic treatment, the primary wastewater treatment efficiency and quality are effectively improved, and the overall treatment cost is reduced.

Description

Technical Field

[0001] The present invention relates to the field of wastewater treatment, and particularly to an anaerobic treatment device and process for fruit juice processing wastewater. Background Art

[0002] In the fruit juice processing industry, wastewater treatment is crucial for sustainable development. In the existing anaerobic treatment technology, fruit juice sewage is first introduced into a treatment tank, and large impurities such as fruit residues are intercepted by a grid, and then suspended solids such as pulp fibers are removed by sedimentation or filtration methods. After the pretreatment is completed, the sewage passes through an anaerobic baffled reactor, and the organic matter is degraded by passing through multiple reaction chambers in sequence under the guidance of the baffles.

[0003] However, this technology has obvious defects. The quantity of sewage impurities is unstable. If the staff fails to clean the screen in time, it is very easy to cause the screen to be blocked. During sedimentation, the sediment and water cannot be completely separated, and the suspended solids are easily mixed into the water when pouring water, resulting in poor sedimentation effect. In addition, chemical agents need to be added to multiple reaction chambers for anaerobic treatment, which is cumbersome to operate and costly.

[0004] For more accurate comparison, a patent with publication number CN118702356A discloses a fruit juice processing wastewater treatment process. It screens and precipitates the fruit juice wastewater through screening equipment to remove solid impurities and suspended solids, and uses mechanical components such as filter plates and scrapers to clean the residues. Then, the wastewater is subjected to pH adjustment, biological treatment, advanced treatment and disinfection treatment. However, this device has significant defects. Its treatment efficiency for sewage is low. In the screening and sedimentation stage, the process of the scraper cleaning the residues and the top block cleaning the blockages in the filter tank is cumbersome and slow, and it is difficult to meet the requirements of efficient treatment of large-scale fruit juice processing wastewater. Moreover, during the cleaning process, the wastewater continuously flows in, affecting the stability of the filtration effect and making it difficult to improve the overall treatment efficiency.

[0005] The above-mentioned existing equipment is not equipped with a dosing device, that is, it cannot quickly add chemical agents in anaerobic treatment to the sewage, and can only treat the sewage by conventional means, with low applicability. When encountering the situation where the suspended solids cannot be removed only by sedimentation, since flocculants and other agents cannot be added, it is difficult to promote the aggregation of fine suspended solids into large particles, resulting in incomplete removal of suspended solids and unqualified effluent quality.

[0006] In view of the above statements, the present invention aims to design a sewage treatment device that is convenient for cleaning the screen, can completely separate the sewage and the sediment, and can carry out anaerobic reaction in a single chamber during this process. Summary of the Invention

[0007] To solve the above problems, the present invention provides an anaerobic treatment device for fruit juice processing wastewater, which includes an upper frame and a lower frame. A sieve component is installed between the upper frame and the lower frame. Blocking units are arranged on both sides of the lower frame for separating suspended precipitates in the sewage. A water supply frame is arranged at the upper end of the upper frame, and a water collection bucket penetrates through the lower side of the lower frame.

[0008] The blocking unit includes rectangular frames arranged on both sides of the lower frame. A rotating cylinder rotates inside the rectangular frame. A strip-shaped groove is opened on one side of the rectangular frame. A winding component is arranged on the inner bottom wall of the lower frame. A blocking cloth is jointly wound between the winding component and the rotating cylinder. A precipitation groove is opened on the blocking cloth.

[0009] Preferably, the winding component includes a conical block arranged on the inner bottom wall of the lower frame. Circular grooves are symmetrically opened inside the conical block. The outer sides of the circular grooves are respectively communicated with the inside of the lower frame and the water collection bucket. A winding shaft located in the circular groove is rotatably inserted on the conical block through a torsion spring.

[0010] Preferably, one end of the blocking cloth is connected to the corresponding winding shaft through the opening of the circular groove, and the thickness of the blocking cloth gradually decreases along the direction towards the winding shaft.

[0011] Preferably, one side of the blocking cloth extends into the rotating cylinder, and a water inlet groove is opened inside the blocking cloth on the side of the rotating cylinder.

[0012] Preferably, several through grooves communicating with the water inlet groove are opened on the side of the precipitation groove facing the rotating cylinder, and one-way valves are arranged in the through grooves.

[0013] Preferably, the sieve component includes limiting frames symmetrically arranged on both sides of the upper frame and the lower frame. A swinging shaft is rotatably inserted inside the limiting frame. A support plate is sleeved outside the swinging shaft. Sieve plates are rotatably arranged on both sides of the support plate through torsion springs, and the sieve plates on one side of the two support plates are located in the gap between the upper frame and the lower frame.

[0014] Preferably, the heights of the two support plates are inconsistent. Sieve grooves are opened on the sieve plates corresponding to the upper and lower positions, and the diameters of the circular grooves on the sieve plates corresponding to the two support plates decrease from high to low.

[0015] Preferably, sliding grooves corresponding to the precipitation grooves are symmetrically opened on the inner bottom wall of the lower frame. A settling plate slides inside the sliding grooves, and one side of the settling plate is inclined.

[0016] Preferably, push cylinders are symmetrically arranged on the water collection bucket through cylinder seats, and the telescopic ends of the push cylinders are connected to the settling plate.

[0017] In addition, the present invention also provides an anaerobic treatment process for fruit juice processing wastewater, including the following steps: S1, Preliminary screening of sewage: The water supply frame is connected to an external water supply device to discharge sewage into the upper frame and the lower frame. During the process of the sewage falling, large impurities in the sewage are screened out by the sieve leakage component.

[0018] S2, Sewage sedimentation: After preliminary screening, the sewage will fall to the bottom of the lower frame. At this time, it is left standing for a period of time so that the suspended matter in the sewage precipitates to the bottom of the lower frame through the sedimentation tank. Then, the sewage in the lower frame is anaerobically treated.

[0019] S3, Solid-liquid separation: After the suspended matter sinks to the bottom, the rotating cylinder drives the blocking cloth to wind around its outside. At this time, the sedimentation tank is also wound around the corresponding rotating cylinder outside, and the blocking cloth separates the sewage and the sediment.

[0020] S4, Sewage discharge: The sewage is discharged into the water collecting bucket through the winding component.

[0021] In summary, the present application includes at least one of the following beneficial technical effects: First, through the sieve leakage component, the present invention can quickly and effectively intercept large impurities in the sewage, such as fruit residues, etc. when the wastewater enters the device; block the large impurities in a specific area to prevent them from entering the subsequent treatment process and avoid problems such as pipeline blockage and equipment wear, providing better influent conditions for subsequent sedimentation, anaerobic treatment and other processes, effectively improving the efficiency and quality of the preliminary treatment of wastewater, and reducing the overall treatment cost.

[0022] Second, through the winding component and the blocking unit, the present invention creates good conditions for the full reaction of the flocculant, the flora and the sewage; on the one hand, it realizes the efficient sedimentation and solid-liquid separation of the suspended matter in the sewage, separating the precipitated suspended matter and the impurities generated by anaerobic treatment from the upper-layer sewage; on the other hand, it enables the flocculant and the flora to start acting from the bottom of the sewage, fully contacting the impurities and organic matter in the sewage, accelerating the sedimentation process and promoting anaerobic metabolism, greatly improving the efficiency of pretreatment and anaerobic reaction; at the same time, in cooperation with the blocking component in the water supply frame, the influent volume of the sewage can be flexibly adjusted to make the water flow impact the sieve plate evenly, ensuring the stability of the filtration effect and ensuring the continuous and stable operation of the equipment.

[0023] Third, the present invention drives the swing shaft to rotate through the driving unit to complete the rapid conversion of the sieve plate, timely clean the impurities on the sieve plate, and ensure the continuous and high efficiency of the screening work; it can also control the rotation of the valve body to flexibly adjust the influent volume of the sewage; at the same time, drive the rotating cylinder to pull the blocking cloth to effectively separate the sewage and the sediment; through the driving of the driving unit, each link in the treatment process of the present application is closely coordinated and flows smoothly, greatly improving the treatment efficiency of the fruit juice processing wastewater. Description of the Drawings

[0024] The present invention will be further described below with reference to the drawings and embodiments.

[0025] Figure 1 is the schematic diagram of the main structure of the present invention.

[0026] Figure 2 is the schematic sectional view of the main body of the present invention.

[0027] Figure 3 is the schematic diagram of the barrier unit and the winding assembly of the present invention.

[0028] Figure 4 is the sectional view of the barrier unit and the winding assembly of the present invention.

[0029] Figure 5 is the present invention Figure 4 partial enlarged view of part A in the present invention.

[0030] Figure 6 is the present invention Figure 4 partial enlarged view of part B in the present invention.

[0031] Figure 7 is the plan view of the sealing cloth of the present invention no longer wound on the winding shaft.

[0032] Figure 8 is the schematic diagram of the connecting cylinder of the present invention.

[0033] Figure 9 is the schematic diagram of the sieve leakage assembly of the present invention.

[0034] Figure 10 is the present invention Figure 9 partial enlarged view of part C in the present invention.

[0035] Figure 11 is the schematic diagram of the settling plate of the present invention.

[0036] Figure 12 is the schematic diagram of the sealing assembly of the present invention.

[0037] Figure 13 is the schematic diagram of the main frame of the present invention.

[0038] Figure 14 is the schematic sectional view of the jet blowing unit of the present invention.

[0039] Figure 15 is the schematic sectional view of the jet blowing unit from another angle of the present invention.

[0040] Figure 16 is the schematic diagram of the driving unit of the present invention.

[0041] Figure 17 is the present invention Figure 16 partial enlarged view of part D in the present invention.

[0042] In the figure, 1 is the upper frame; 10 is the lower frame; 11 is the water supply frame; 12 is the water collecting bucket; 2 is the blocking unit; 20 is the rectangular frame; 21 is the rotating cylinder; 22 is the strip-shaped groove; 23 is the blocking cloth; 24 is the sedimentation tank; 3 is the winding assembly; 30 is the conical block; 31 is the circular groove; 32 is the winding shaft; 33 is the water inlet groove; 34 is the one-way valve; 35 is the connecting cylinder; 4 is the sieve leakage assembly; 40 is the limiting frame; 41 is the swing shaft; 42 is the support plate; 43 is the sieve plate; 44 is the sieve groove; 5 is the sedimentation plate; 50 is the pushing cylinder; 6 is the blocking assembly; 60 is the rectangular block; 61 is the L-shaped groove; 62 is the valve body; 63 is the external connecting hole; 64 is the flow dividing plate; 7 is the jet blowing unit; 70 is the main frame; 71 is the support plate; 72 is the spring shaft; 73 is the installation groove; 74 is the diversion plate; 75 is the partition plate; 8 is the driving unit; 80 is the driving cylinder; 81 is the transmission gear ring; 82 is the large gear ring; 83 is the driving motor; 84 is the driving gear; 85 is the commutation gear set; 86 is the passive gear; 87 is the bent plate; 88 is the driving rack. Specific embodiments

[0043] The following is combined with Figures 1 to 17 to describe the embodiments of the present invention in detail.

[0044] The anaerobic treatment device and process for fruit juice processing wastewater disclosed in the embodiments of the present application are applied to the fruit juice processing wastewater treatment scenario, can efficiently separate large impurities and suspended matters in the wastewater, and achieve solid-liquid separation; after the sewage enters the device, large impurities are intercepted first, then the suspended matters are precipitated and anaerobically treated, and the precipitated impurities are isolated from the upper-layer sewage; it promotes the full reaction of the flocculant, bacteria group and sewage, optimizes the water inlet mode to prevent impact on the filtering components, and can also remove the residues of the device during the working process to ensure the efficiency of sewage treatment.

[0045] Embodiment 1: Refer to Figure 1 and Figure 2 As shown, it includes an upper frame 1, a lower frame 10, a sieve leakage assembly 4, a blocking unit 2, a water supply frame 11 and a water collecting bucket 12. A sieve leakage assembly 4 is installed between the upper frame 1 and the lower frame 10, and blocking units 2 are arranged on both sides of the lower frame 10 for separating the suspended sediments in the sewage. A water supply frame 11 is arranged at the upper end of the upper frame 1, and a water collecting bucket 12 penetrates through the lower side of the lower frame 10.

[0046] The water supply frame 11 is used to connect an external water supply device, and the external water supply device is used to discharge sewage into the water supply pipe. After that, the sewage will enter the upper frame 1. The sewage that enters the upper frame 1 will enter the sieve component 4. The sieve component 4 screens out large impurities such as fruit residues in the sewage. The large impurities will remain on the sieve component 4, and the screened sewage will enter the lower frame 10 through the sieve component 4. After that, the sewage will be precipitated and anaerobically treated in the lower frame 10. The blocking unit 2 is used to isolate the suspended solids precipitated in the sewage and the impurities generated by anaerobic treatment from the upper-layer sewage. After that, the isolated sewage will enter the water collecting bucket 12, and the precipitated floating substances and impurities will stay in the lower frame 10.

[0047] Refer to Figure 3 、 Figure 4 and Figure 5 As shown, it is the blocking unit 2 for isolating sewage and sediment; specifically, the blocking unit 2 includes a rectangular frame 20, a rotating cylinder 21, a strip-shaped groove 22, a winding assembly 3, a blocking cloth 23 and a sedimentation tank 24. The rectangular frame 20 is arranged on both sides of the lower frame 10. A rotating cylinder 21 is rotatably arranged in the rectangular frame 20. A strip-shaped groove 22 is opened on one side of the rectangular frame 20. A winding assembly 3 is arranged on the bottom wall inside the lower frame 10. A blocking cloth 23 is jointly wound between the winding assembly 3 and the rotating cylinder 21. A sedimentation tank 24 is opened on the blocking cloth 23. The rotating cylinder 21 can rotate in the rectangular frame 20, and one side of the blocking cloth 23 is wound on the winding assembly 3, and the other side passes through the strip-shaped groove 22 and is wound on the rotating cylinder 21 and is communicated with the inside of the rotating cylinder 21. That is, when the rotating cylinder 21 is driven by an external force to rotate, it can drive the blocking cloth 23 on the winding assembly 3 to be wound on its outer side.

[0048] In the initial state, after the sewage enters the lower frame 10 and settles for a period of time, the fine fruit juice residues and small particle suspended solids in the sewage will precipitate. The precipitate will fall through the sedimentation tank 24 of the blocking cloth 23 to the bottom of the lower frame 10. When the suspended solids and residues in the sewage have all precipitated, at this time, the rotating cylinder 21 drives the blocking cloth 23 to be wound on its outer wall. That is, at this time, the sedimentation tank 24 will also be wound on its outer wall. At this time, the remaining blocking cloth 23 will separate the sewage and the sediment. Although there is still some sewage in the separated sediment, in large-scale sewage treatment, the proportion of this part of the residual sewage is relatively low.

[0049] The subsequent sediment will also undergo a series of external treatment processes, such as dehydration and drying, and the sewage in the sediment will be dried; the sewage remaining in this part of the sediment can be completely ignored and will not have a substantial impact on the performance and effect of the entire sewage treatment system. By blocking with the blocking cloth 23, it is ensured that the sedimentation effect is guaranteed when most of the sewage in the lower frame 10 is discharged, effectively ensuring the efficient and stable operation of the sewage treatment work.

[0050] It should be noted that the "impurities" mentioned in the above implementation process are large pulp fibers and impurities in the sewage, and the "sediment" is the suspended matter separated from the sewage after sedimentation or the suspended matter that appears after microbial treatment.

[0051] Continue to refer to Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 As shown in, that is, the winding assembly 3 for winding the blocking cloth 23; specifically, the winding assembly 3 includes a tapered block 30, a circular groove 31, a winding shaft 32, a water inlet groove 33, a one-way valve 34 and a connecting cylinder 35. The tapered block 30 is arranged on the inner bottom wall of the lower frame 10. Symmetrically arranged Q-shaped circular grooves 31 are opened in the tapered block 30. The outer sides of the circular grooves 31 are respectively communicated with the inside of the lower frame 10 and the water collecting bucket 12. The winding shaft 32 is rotatably inserted into the circular groove 31 on the tapered block 30 through a torsion spring. The winding shaft 32 can rotate in the circular groove 31 when driven by an external force. After the external force disappears, the reaction force of the torsion spring drives the winding shaft 32 to rotate to the initial position, that is, after the rotating cylinder 21 pulls the blocking cloth 23 and winds it on its outer wall, the winding shaft 32 can rotate synchronously. When the rotating cylinder 21 no longer pulls, at this time, the torsion spring at the end of the winding shaft 32 will pull the rotating cylinder 21 to rotate in the reverse direction through the blocking cloth 23, and the blocking cloth 23 is synchronously wound back to the outside of the winding shaft 32, and the sedimentation tank 24 returns to the initial position.

[0052] One end of the blocking cloth 23 is connected to the corresponding winding shaft 32 through the opening of the circular groove 31, and the thickness of the blocking cloth 23 gradually decreases in the direction towards the winding shaft 32. After the blocking cloth 23 is wound around the outer side of the rotating cylinder 21, that is, at this time, the sediment and the sewage have been separated by the blocking cloth 23. In the initial state, the blocking cloth 23 is used to block the circular groove 31 and the opening extending from the upper end of the circular groove 31 to the outside of the conical block 30, so that the sewage will not flow into the water collecting bucket 12 through the circular groove 31. When most of the extended section of the blocking cloth 23 is wound around the outer side of the rotating cylinder 21, the remaining width of the blocking cloth 23 at this time no longer abuts against the extended section at the upper end of the circular groove 31, that is, the sewage will enter the circular groove 31 through the extended section at the upper end of the circular groove 31, and then be discharged into the water collecting bucket 12 through the extended section at the lower end of the circular groove 31. At this time, the sewage in the lower frame 10 will be separated.

[0053] One side of the blocking cloth 23 extends into the rotating cylinder 21, and a water inlet groove 33 is formed inside the blocking cloth 23 on one side of the rotating cylinder 21. Several through grooves communicating with the water inlet groove 33 are formed on the side of the sedimentation tank 24 facing the rotating cylinder 21, and one-way valves 34 are arranged in the through grooves. One end of the rotating cylinder 21 rotates through the outer wall of the corresponding lower frame 10, and a connecting cylinder 35 is rotatably arranged on one side of the outer wall of the lower frame 10. The connecting cylinder 35 is used to connect with an external pipeline, which is equivalent to an externally reserved installation interface. After the external pipeline is connected to the connecting cylinder 35, the connecting cylinder 35 can be limited. When the rotating cylinder 21 rotates, the connecting cylinder 35 is limited by the external pipeline and will not rotate, so that a liquid flocculant such as polyaluminum chloride solution can be added into the rotating cylinder 21 through the external pipeline; polyaluminum chloride hydrolyzes in water to generate aluminum hydroxide colloid, which can quickly neutralize the surface charge of suspended particles in the sewage. Through the effects of compression of the double electric layer and adsorption bridging, small particles are aggregated into large flocs, accelerating the sedimentation process and improving the pretreatment effect of the sewage.

[0054] During the anaerobic reaction, a mixed bacterial solution containing methanogens and hydrolytic acidifying bacteria can be added through this pipeline; the hydrolytic acidifying bacteria can decompose macromolecular organic matters in the sewage, such as pectin and cellulose commonly found in fruit juice sewage, into small molecular organic acids, alcohols and other substances, improving the biodegradability of the sewage; the methanogens can further convert the intermediate products generated by hydrolysis acidification into methane and carbon dioxide, realizing the deep degradation of organic matters in the sewage.

[0055] These added flocculants and bacterial communities will enter the water inlet tank 33, and then these substances in the water inlet tank 33 will be discharged into the lower frame 10 through the one-way valve 34. Since the one-way valve 34 is at the bottom of the sewage, the flocculants and bacterial communities extend from bottom to top along with the water flow, enabling more sufficient contact and reaction with the sewage; the flocculants start to function from the bottom, causing the suspended particles in the sewage to quickly coagulate and precipitate from the bottom; the bacterial communities are densely distributed at the bottom, using the abundant organic matter in the sewage as a nutrient source to carry out anaerobic metabolic activities from bottom to top, promoting the efficient progress of the entire anaerobic reaction and further improving the treatment efficiency and quality of the sewage.

[0056] The above-mentioned flocculants and mixed bacterial solutions, etc. are all common knowledge. Those skilled in the art can add different agents into the sewage through the one-way valve 34 according to the actual usage scenario.

[0057] Refer to Figure 9 and Figure 10 As shown, it is the sieve component 4 for screening out large particulate matters in the sewage; specifically, the sieve component 4 includes a limit frame 40, a swing shaft 41, a support plate 42, a sieve plate 43, and a sieve groove 44. Two limit frames 40 are symmetrically arranged on both sides of the upper frame 1 and the lower frame 10. A swing shaft 41 is rotatably inserted into the limit frame 40, that is, the swing shaft 41 can rotate between the corresponding limit frames 40, and the two groups of limit frames 40 and swing shafts 41 can also support between the upper frame 1 and the lower frame 10.

[0058] A support plate 42 is sleeved outside the swing shaft 41. Sieve plates 43 are rotatably arranged on both sides of the support plate 42 through torsion springs. The heights of the two support plates 42 are inconsistent. Sieve grooves 44 are provided on the corresponding sieve plates 43 above and below, and the diameters of the circular grooves 31 on the sieve plates 43 corresponding to the two support plates 42 decrease from high to low. And the sieve plates 43 on one side of the two support plates 42 are located in the gap between the upper frame 1 and the lower frame 10. The swing shaft 41 can drive the corresponding two sieve plates 43 to rotate along their axes through the support plate 42. When the sewage falls onto the upper sieve plate 43, the large impurities in the sewage will be blocked by the sieve grooves 44 on the sieve plate 43, and then the sewage is discharged into the lower frame 10 through the sieve grooves 44.

[0059] Furthermore, through the design of two layers of sieve plates 43 and the decrease in the diameter of the sieve grooves 44 on the sieve plates 43 from large to small, the screening efficiency of large impurities in the sewage can be improved. And the two sieve plates 43 are located in the gap between the upper frame 1 and the lower frame 10, and the corresponding sieve plates 43 above and below can block the gap between the upper frame 1 and the lower frame 10 to prevent the sewage from flowing out of the upper frame 1 and the lower frame 10 through the gap.

[0060] After there is more and more impurities on the two sieve plates 43 between the upper frame 1 and the lower frame 10, at this time, the swing shaft 41 is driven to rotate 180 degrees, so that the two sieve plates 43 rotate out between the upper frame 1 and the lower frame 10, and the clean sieve plate 43 on the other side of the support plate 42 moves between the upper frame 1 and the lower frame 10 to continue the screening work. The sieve plate 43 on the other side is driven by an external force to turn over, and the impurities on its end face are cleaned. Then, it no longer receives an external force and swings to correspond to the support plate 42 through its corresponding torsion spring, preparing to implement the above steps again, thereby realizing the replacement between the sieve plates 43. And during the replacement process, the water supply frame 11 only needs to stop supplying water for a short time. When the clean sieve plate 43 moves between the upper frame 1 and the lower frame 10, water supply can be carried out immediately again to ensure the efficiency of sewage treatment.

[0061] Referring to Figure 11 As shown, in order to clean out the sediment at the bottom of the lower frame 10, sliding grooves corresponding to the sedimentation tanks 24 are symmetrically formed on the inner bottom wall of the lower frame 10, and a sedimentation plate 5 slides in the sliding grooves, that is, the sediment will precipitate onto the sedimentation plate 5 through the sedimentation tanks 24; one side of the sedimentation plate 5 is inclined. On the water collecting bucket 12, push cylinders 50 are symmetrically arranged through cylinder seats, and the telescopic ends of the push cylinders 50 are connected to the sedimentation plate 5.

[0062] After the sedimentation is completed, at this time, the sewage and the sediment have been separated by the blocking cloth 23, and the push cylinder 50 can be used to drive the sedimentation plate 5 to descend. The sediment will flow out of the sedimentation plate 5 through the inclined surface on the sedimentation plate 5, and it is also convenient for the staff to clean the impurities on the sedimentation plate 5.

[0063] In the specific implementation process, after the sewage in one stage is separated from the sediment and discharged from the lower frame 10, at this time, the push cylinder 50 does not need to be immediately used to drive the sedimentation plate 5 to descend. Instead, the sewage in the next stage can be discharged into the lower frame 10, and then the sewage is sedimented and anaerobically treated again. After that, the blocking cloth 23 is activated to separate the sewage and the sediment. At this time, the sediment on the sedimentation plate 5 will accumulate more and more. When the sediment is sufficient, the sedimentation plate 5 can be driven to descend, which can effectively reduce the amount of sewage in the sediment.

[0064] When carrying out the anaerobic reaction, it is crucial to ensure that the sewage in the lower frame 10 is completely isolated from the outside air and oxygen; because anaerobic microorganisms rely on an anaerobic environment during metabolism, and the presence of oxygen will have a serious impact on them; on the one hand, oxygen will inhibit the activity of anaerobic microorganisms, change their metabolic pathways, resulting in the microorganisms being unable to decompose the organic matter in the sewage normally, reducing the efficiency of the anaerobic reaction; on the other hand, oxygen may react with the intermediate products generated during the reaction, hindering the smooth progress of the reaction, and even generating by-products that are not conducive to subsequent treatment.

[0065] In order to achieve a strict anaerobic environment, the water supply frame 11 is first closed to prevent outside air from entering with the water flow; at the same time, the circular groove 31 will be tightly sealed by the sealing cloth 23 to prevent air from infiltrating from this part; in addition, the sieve plate 43 in the upper frame 1 and the lower frame 10 also plays a key role. Its edge can tightly seal the area between the upper frame 1 and the lower frame 10. By taking multiple measures, a good sealing effect can be achieved inside the lower frame 10, creating a stable anaerobic environment for anaerobic microorganisms, ensuring that the anaerobic reaction is not disturbed by oxygen and proceeds smoothly and efficiently.

[0066] Example 2: Reference Figure 12 As shown, on the basis of the first embodiment, in order to be able to adjust the sewage inflow in real time, a blocking component 6 for blocking water is provided in the water supply frame 11; specifically, the blocking component 6 includes a rectangular block 60, an L-shaped groove 61, a valve body 62, an external connecting hole 63 and a diverter plate 64, the rectangular block 60 is arranged at the upper end of the water supply frame 11, an L-shaped groove 61 is opened in the rectangular block 60, a valve body 62 located in the L-shaped groove 61 is arranged in the rectangular block 60, the rotating end of the valve body 62 passes through the top of the rectangular block 60, one side of the rectangular block 60 is provided with an external connecting hole 63 that is connected to the L-shaped groove 61, the lower side of the L-shaped groove 61 is connected to the upper end port of the water supply frame 11, and a plurality of diverter plates 64 distributed along its extension section are provided at the lower end opening of the water supply frame 11.

[0067] That is, the valve body 62 is used to block the L-shaped groove 61. By driving the rotating end at the upper end of the valve body 62 to rotate, the blocking end of the valve body 62 can be driven to no longer block the L-shaped groove 61, so that the external water supply equipment can discharge sewage into the L-shaped groove 61 through the external connecting hole 63. The sewage in the L-shaped groove 61 can enter the water supply frame 11, and the water flow will collide with the diverter plate 64 after falling to the bottom of the water supply frame 11, so that the water flow is dispersed and evenly contacts the sieve plate 43 at the lower end, avoiding the sewage from concentrating on a part of the sieve plate 43, so that the sieve groove 44 in this area is blocked by impurities in advance, thereby affecting the filtration efficiency.

[0068] Example 3: Reference Figure 13 , Figure 14 and Figure 15As shown in the figure, on the basis of the first and second embodiments, a main frame 70 is provided, and the upper frame 1 and the lower frame 10 are located within the main frame 70. An air-blowing unit 7 is provided within the main frame 70 for cleaning the residues on the sieve plate 43 and the sedimentation plate 5. Specifically, the air-blowing unit 7 includes a main frame 70, support plates 71, spring shafts 72, mounting grooves 73, guide plates 74, and partition plates 75. Two support plates 71 are staggeredly arranged on the inner wall of the main frame 70. Spring shafts 72 are provided on the support plates 71, and the telescopic ends of the spring shafts 72 are in contact with one side of the sieve plate 43 located outside the upper frame 1 and the lower frame 10 respectively. Due to being resisted by the telescopic ends of the spring shafts 72, the corresponding sieve plate 43 is inclined to a certain extent along the axis of its swing shaft 41.

[0069] That is to say, when the sieve plate 43 moves to correspond to the spring shaft 72, one side of the sieve plate 43 will be in contact with the telescopic end of the corresponding spring shaft 72. At this time, the spring shaft 72 drives the sieve plate 43 to rotate around the rotation point, thereby causing the sieve plate 43 to be skewed to a certain extent. If the sieve plate 43 continues to be driven by the swing shaft 41 to rotate, at this time, the force of the torsion spring on the sieve plate 43 gradually becomes greater than the thrust of the spring shaft 72, and the top of the telescopic end of the spring shaft 72 is arc-shaped, causing the spring shaft 72 to compress and descend, and the sieve plate 43 will be driven by the corresponding torsion spring again to swing to be parallel to the support plate 42.

[0070] Two mounting grooves 73 are symmetrically opened at the upper end of the main frame 70. The mounting grooves 73 are used to install external air supply equipment (a well-known technology for discharging high-pressure gas into the main frame 70 through a rectangular groove). When the sieve plate 43 is inclined, some impurities on the sieve plate 43 will fall along its inclined direction at this time, but there will still be some impurities sticking to the sieve plate 43. At this time, the external air supply equipment is started to discharge high-pressure gas into the main frame 70. The high-pressure gas blows off the stubborn impurities on the sieve plate 43, and the impurities can fall and be discharged from the opening at the bottom of the main frame 70.

[0071] Guide plates 74 are also symmetrically arranged on both sides of the lower frame 10. The guide plates 74 correspond to the sedimentation plate 5. When the sedimentation plate 5 descends with the sediment, at this time, the high-pressure gas is introduced by the guide plates 74 to contact the sedimentation plate 5, and the sediment on the inclined surface of the sedimentation plate 5 is blown off and also discharged from the lower end opening of the main frame 70. A partition plate 75 corresponding to the outside of the water collecting bucket 12 is also provided on the lower side of the sedimentation plate 5. The partition plate 75 is used to prevent the sediment from being blown between the water collecting bucket 12 and the lower frame 10 after the sedimentation plate 5 descends, making it difficult to clean up the accumulated sediment.

[0072] It should be noted that the main frame 70 can be fixed to the ground by external supporting equipment, and the bottom of the water collecting barrel 12 can also be fixed to the ground by external supporting equipment through the lower end opening of the main frame 70. Since the supporting equipment is something that can be associated with by technical personnel in this field, it will not be described in detail in this embodiment.

[0073] Example 4: Reference Figure 16 and Figure 17 As shown, on the basis of Embodiment 1, Embodiment 2 and Embodiment 3, in order to drive the rotating end of the valve body 62, the swing shaft 41 and the rotating drum 21 to rotate, a driving unit 8 is installed on the upper frame 1; specifically, the driving unit 8 includes a driving cylinder 80, a transmission ring gear 81, a large ring gear 82, a driving motor 83, a driving gear 84, a reversing gear set 85, a passive gear 86, a bending plate 87 and an active rack 88, and the driving cylinder 80 is installed on the upper frame 1 through a cylinder seat, and the upper end of the swing shaft 41 extends out of the corresponding limit frame 40 and is sleeved with a transmission ring gear 81 on the outside, and the swing shafts 41 are connected by a belt drive, that is, when the swing shaft 41 on one side is driven to rotate by the transmission ring gear 81, the swing shaft 41 on the other side can be driven by the belt drive to rotate in the same direction.

[0074] The rotating end of the valve body 62 also extends out of the corresponding rectangular block 60 and is sleeved with a large gear ring 82 on its outer side, and the telescopic end of the driving cylinder 80 is provided with a driving motor 83 through a motor seat, and a driving gear 84 is sleeved on the outer side of the rotating end of the driving motor 83, and the driving gear 84 corresponds to the transmission gear ring 81 and the large gear ring 82. The driving cylinder 80 can drive the driving motor 83 and the driving gear 84 to move up and down, so that the driving gear 84 can respectively engage with the transmission gear ring 81 and the large gear ring 82, so that the driving motor 83 can respectively drive the swing shaft 41 and the rotating end of the valve body 62 to rotate through the driving gear 84, the transmission gear ring 81 and the large gear ring 82, so as to realize the conversion of the sieve plate 43 and the switching of the valve body 62.

[0075] A reversing gear set 85 (composed of two sets of meshing gears) is also provided on the outer side of the lower frame 10. One end of the rotating drum 21 located outside the lower frame is respectively connected to the middle shafts of the two gears on the reversing gear set 85 by belt transmission. A passive gear 86 is also sleeved on the outer side of the rotating drum 21 on one side. That is, the passive gear 86 is driven to rotate by external force, which can drive the rotating drum 21 on one side to rotate, so as to achieve the effect of pulling the sealing cloth 23 by the rotating drum 21. The rotating drum 21 can also drive the reversing gear set 85 to rotate through the belt transmission. The reversing gear set 85 can drive the rotating drum 21 on the other side to rotate in the opposite direction through the belt transmission. Since the pulling directions of the two sealing cloths 23 are opposite, the rotating drum 21 on the other side can also achieve the effect of pulling the corresponding sealing cloth 23.

[0076] The telescopic end of the driving cylinder 80 is provided with a bent plate 87, and the bent section of the bent plate 87 is used to avoid the rotation path of the sieve plate 43. The lower side of the bent plate 87 extends to correspond to the driven gear 86 and is provided with a corresponding driving rack 88. That is, the driving cylinder 80 can drive the driving rack 88 to engage with the driven gear 86 by driving the bent plate 87 to descend, driving the driven gear 86 to rotate, so as to achieve the effect of the above implementation process. It should be noted that when the driving gear 84 engages with the transmission gear ring 81, the driving rack 88 will not engage with the driven gear 86.

[0077] In addition, the present invention also provides an anaerobic treatment process for fruit juice processing wastewater, including the following steps: S1, primary screening of sewage: The water supply frame 11 is connected to an external water supply device to discharge sewage into the upper frame 1 and the lower frame 10. During the falling process of the sewage, large impurities in the sewage are screened out by the sieve component 4.

[0078] S2, sewage sedimentation: After the primary screening of sewage, it will fall to the bottom of the lower frame 10. At this time, it is left standing for a period of time, so that the suspended matter in the sewage precipitates to the bottom of the lower frame 10 through the sedimentation tank 24, and then the sewage in the lower frame 10 is anaerobically treated.

[0079] S3, solid-liquid separation: After the suspended matter sinks to the bottom, the rotating cylinder 21 drives the blocking cloth 23 to wind around its outer side. At this time, the sedimentation tank 24 is also wound around the corresponding rotating cylinder 21, and the blocking cloth 23 separates the sewage and the sediment.

[0080] S4, sewage discharge: The sewage is discharged into the water collecting bucket 12 through the winding component 3.

[0081] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting.

[0082] In addition, it should be understood that although this specification is described according to the embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An anaerobic treatment device for fruit juice processing wastewater, comprising an upper frame (1) and a lower frame (10), characterized in that: A sieve leakage component (4) is installed between the upper frame (1) and the lower frame (10). Blocking units (2) are arranged on both sides of the lower frame (10) for separating suspended sediments in the sewage. A water supply frame (11) is arranged at the upper end of the upper frame (1), and a water collecting bucket (12) penetrates through the lower side of the lower frame (10). The blocking unit (2) includes rectangular frames (20) arranged on both sides of the lower frame (10). A rotating cylinder (21) rotates inside the rectangular frame (20). A strip-shaped groove (22) is formed on one side of the rectangular frame (20). A winding component (3) is arranged on the inner bottom wall of the lower frame (10). A blocking cloth (23) is jointly wound between the winding component (3) and the rotating cylinder (21). A sedimentation tank (24) is formed on the blocking cloth (23).

2. An anaerobic treatment device for fruit juice processing wastewater according to claim 1, characterized in that: The winding component (3) includes a conical block (30) arranged on the inner bottom wall of the lower frame (10). Circular grooves (31) are symmetrically formed inside the conical block (30). The outer sides of the circular grooves (31) are respectively communicated with the inside of the lower frame (10) and the water collecting bucket (12). A winding shaft (32) located inside the circular groove (31) is rotatably inserted on the conical block (30) through a torsion spring.

3. An anaerobic treatment device for fruit juice processing wastewater according to claim 2, characterized in that: One end of the blocking cloth (23) is connected to the corresponding winding shaft (32) through the opening of the circular groove (31), and the thickness of the blocking cloth (23) gradually decreases along the direction towards the winding shaft (32).

4. An anaerobic treatment device for fruit juice processing wastewater according to claim 1, characterized in that: One side of the blocking cloth (23) extends into the rotating cylinder (21), and a water inlet groove (33) is formed inside the blocking cloth (23) on one side of the rotating cylinder (21).

5. The anaerobic treatment device for fruit juice processing wastewater according to claim 4, characterized in that: A plurality of through grooves communicating with the water inlet groove (33) are formed on one side of the sedimentation tank (24) facing the rotating cylinder (21), and one-way valves (34) are arranged inside the through grooves.

6. The anaerobic treatment device for fruit juice processing wastewater according to claim 1, characterized in that: The sieve leakage component (4) includes limiting frames (40) symmetrically arranged on both sides of the upper frame (1) and the lower frame (10). A swinging shaft (41) is rotatably inserted inside the limiting frame (40). A support plate (42) is sleeved outside the swinging shaft (41). Sieve plates (43) are rotatably arranged on both sides of the support plate (42) through torsion springs, and the sieve plates (43) on one side of the two support plates (42) are located in the gap between the upper frame (1) and the lower frame (10).

7. An anaerobic treatment device for fruit juice processing wastewater according to claim 6, characterized in that: The heights of the two support plates (42) are inconsistent. Sieve grooves (44) are formed on the upper and lower corresponding sieve plates (43), and the diameters of the circular grooves (31) corresponding to the sieve plates (43) on the two support plates (42) decrease from high to low.

8. An anaerobic treatment device for fruit juice processing wastewater according to claim 1, characterized in that: Sliding grooves corresponding to the sedimentation tank (24) are symmetrically formed on the inner bottom wall of the lower frame (10). A sedimentation plate (5) slides inside the sliding grooves, and one side of the sedimentation plate (5) is inclined.

9. An anaerobic treatment device for fruit juice processing wastewater according to claim 8, characterized in that: Push cylinders (50) are symmetrically arranged on the water collecting bucket (12) through cylinder seats, and the telescopic ends of the push cylinders (50) are connected to the sedimentation plate (5).

10. An anaerobic treatment process for fruit juice processing wastewater, which uses an anaerobic treatment device for fruit juice processing wastewater as described in any one of claims 1-9, is characterized in that, The treatment process includes the following steps: S1, primary screening of sewage: The water supply frame (11) is connected to an external water supply device to discharge sewage into the upper frame (1) and the lower frame (10). During the falling process of the sewage, large impurities in the sewage are screened out through the sieve leakage component (4). S2, Sewage sedimentation: After the initial screening of the sewage, it will fall to the bottom of the lower frame (10). At this time, it is left standing for a period of time so that the suspended solids in the sewage precipitate to the bottom of the lower frame (10) through the sedimentation tank (24), and then the sewage in the lower frame (10) is anaerobically treated; S3, Solid-liquid separation: After the suspended solids sink to the bottom, the rotating cylinder (21) drives the sealing cloth (23) to wind around its outer side. At this time, the sedimentation tank (24) is also wound around the corresponding rotating cylinder (21) on the outer side, and the sealing cloth (23) separates the sewage and the sediment; S4, Sewage discharge: The sewage is discharged into the water collecting bucket (12) through the winding assembly (3).

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