An anaerobic biological treatment device, treatment system and method for wine industry wastewater

Abstract

The present invention relates to the technical field of sewage treatment, and in particular to an anaerobic biological treatment device, treatment system and method for wine industry wastewater; it includes an anaerobic reaction chamber and a circulation module. The anaerobic reaction chamber includes a gas phase area, a liquid phase area and a solid phase area arranged in sequence longitudinally, and a liquid outlet pool and a gas-liquid separation pool are also arranged in the anaerobic reaction chamber; the circulation module includes a circulation pump, an air equalizing pipe, a pneumatic energy storage unit and a scraper. Due to the energy storage method adopted in this application, the load increment of the circulation pump is low, and thus the energy consumption increment brought to the whole device by driving the scraper is small, which will not affect the normal progress of the aeration work. Moreover, because of the intermittent work of the scraper, the foam on the liquid surface of the gas-liquid separation pool can be scraped off, increasing the amount of methane removed from the wastewater in the effective collection process section, thereby increasing the methane collection amount per unit time and achieving low-energy and high-efficiency methane collection.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to an anaerobic biological treatment device, a treatment system and a method for wine industry wastewater. Background Art

[0002] Wine industry wastewater mainly comes from the raw material cleaning, fermentation, distillation, equipment flushing and other links in the production process, and has the characteristics of high concentration of organic matter (COD / BOD), high nitrogen and phosphorus content, and large fluctuations in water quality. The existing technology generally uses filtration, pH adjustment, anaerobic, aerobic and other processes to treat wine industry wastewater. In the anaerobic biological treatment of wine industry wastewater, methane and other resources that are easy to recycle will also be produced. However, the applicant found in the process of realizing the present invention that when the existing technology collects methane generated in the anaerobic biological treatment process, there is a contradiction between the methane collection effect and the collection energy consumption. Summary of the invention

[0003] The purpose of the present invention is to provide an anaerobic biological treatment device, treatment system and method for wine industry wastewater to solve the above technical problems existing in the prior art, which mainly include the following three aspects:

[0004] In a first aspect, an anaerobic biological treatment device for wine industry wastewater is disclosed, comprising an anaerobic reaction chamber and a circulation module.

[0005] The anaerobic reaction chamber comprises a gas phase zone, a liquid phase zone and a solid phase zone arranged in sequence along the longitudinal direction. The solid phase zone is connected with a liquid inlet and a mud outlet. A liquid outlet pool and a gas-liquid separation pool are also arranged in the anaerobic reaction chamber. The gas-liquid separation pool is arranged around the liquid outlet pool. The bottom of the liquid outlet pool is connected with a liquid discharge pipe. Along the liquid flow direction, the liquid phase zone, the gas-liquid separation pool and the liquid outlet pool are connected in sequence by overflow. The gas phase zone is connected with a gas collecting pipe.

[0006] The circulation module includes a circulation pump, an air equalizing pipe, a pneumatic energy storage unit and a scraper. The inlet of the circulation pump is connected to the gas phase zone through an input channel, and the outlet of the circulation pump is connected to the air equalizing pipe located in the gas-liquid separation tank through an output channel; the scraper is arranged at the liquid surface of the gas-liquid separation tank, and there is a horizontal movement stroke along the liquid surface between the scraper and the gas-liquid separation tank; the input end of the pneumatic energy storage unit is located in the input channel or the output channel to realize the collection and storage of the kinetic energy of the fluid flowing to the air equalizing pipe, and the output end of the pneumatic energy storage unit is connected to the scraper transmission to realize driving the scraper to move horizontally along the liquid surface in the gas-liquid separation tank when the energy is stored to a preset value.

[0007] In the second aspect, an anaerobic biological treatment system for wine industry wastewater is disclosed, including a filtration module, a pH adjustment module, an aerobic treatment module and the above-mentioned anaerobic biological treatment device. Along the liquid flow direction, the filtration module, the pH adjustment module, the anaerobic biological treatment device and the aerobic treatment module are arranged in sequence.

[0008] Thirdly, a method for treating wine industry wastewater is disclosed, and the above anaerobic biological treatment device or the above anaerobic biological treatment system is used to treat the wine industry wastewater.

[0009] The technical solution adopted by the present invention can achieve the following beneficial effects:

[0010] By arranging a pneumatic energy storage unit in the input channel or the output channel, due to the energy storage method, the load increment of the circulation pump is low, and thus the energy consumption increment brought to the whole device by driving the scraper is small, which will not affect the normal progress of the aeration work. Moreover, the floating foam on the liquid surface of the gas-liquid separation tank can be scraped off due to the intermittent operation of the scraper, improving the amount of methane removed from the wastewater in the effective collection process section, thereby increasing the methane collection amount per unit time, solving the technical problem of high energy consumption in the efficient collection of methane during the anaerobic biological treatment of wine industry wastewater, and realizing low-energy and efficient methane collection. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0012] Figure 1 is a schematic structural diagram of the anaerobic biological treatment device of the present invention;

[0013] Figure 2 is a schematic internal structure diagram of the anaerobic biological treatment device of the present invention;

[0014] Figure 3 is a sectional view of the anaerobic biological treatment device of the present invention;

[0015] Figure 4 is a schematic diagram of fluid flow during the operation of the anaerobic biological treatment device of the present invention;

[0016] Figure 5 is a schematic structural diagram of the circulation module of the present invention;

[0017] Figure 6 is Figure 5 a partial enlarged view at B in

[0018] Figure 7 is a schematic internal structure diagram of the pneumatic energy storage unit of the present invention;

[0019] Figure 8 is a schematic structural diagram of the limit structure of the present invention;

[0020] Figure 9 It is a schematic diagram of the module connection of the processing system of the present invention.

[0021] In the figure:

[0022] 10. Anaerobic reaction chamber; 100. Solid phase area; 110. Liquid equalizing pipe; 120. Sludge discharge pipe; 130. Inlet liquid pipe; 200. Liquid phase area; 210. Gas-liquid separation tank; 220. Outlet liquid tank; 221. Liquid discharge pipe; 300. Gas phase area; 410. Input channel; 420. Circulation pump; 430. Output channel; 431. Vertical section; 440. Gas equalizing pipe; 450. Gas collecting pipe; 500. Pneumatic energy storage unit; 510. Impeller; 520. Reduction drive assembly; 530. Rotating disk; 531. Arc-shaped protrusion; 540. Rotating cylinder; 550. Rotating shaft; 560. Elastic energy storage member; 571. Locking member; 5711. Waist-shaped hole; 572. Reset member; 573. Clamping portion; 580. Partition plate; 581. Fixed rod; 610. Scraper; 620. Sleeve; 630. Slip ring; 20. Filter module; 30. pH value adjustment module; 40. Aerobic treatment module; 50. Temperature adjustment module. Detailed implementation manners

[0023] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other implementation manners obtained by those of ordinary skill in the art without creative efforts shall fall within the scope protected by the present invention.

[0024] The terms "first", "second", etc. in the specification and claims of this application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of this application can be implemented in an order different from those illustrated or described here, and the objects distinguished by "first", "second", etc. are usually of the same category, and do not limit the number of objects. For example, the first object can be one or multiple. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally represents an "or" relationship between the associated objects before and after.

[0025] Regarding the methane generated during the anaerobic biological treatment of winery wastewater, since anaerobic biological treatment is a continuous process, it is necessary to collect methane at specific time points and specific process points. Currently, aeration is generally carried out at the end of anaerobic biological treatment to carry the methane in the wastewater away through aeration, and then methane is collected to improve the methane collection effect. However, during the aeration process, it is easy to generate foam on the liquid surface due to the continuous emergence of bubbles. The presence of foam will cause the separation effect of methane from the liquid phase in the effective methane collection process section to deteriorate, affecting energy recovery and utilization. If a foam removal mechanism is added, a corresponding power source needs to be added, resulting in increased energy consumption, and then there is a problem of contradiction between methane collection effect and collection energy consumption. To solve the technical problem of high energy consumption caused by efficient methane collection during the anaerobic biological treatment of winery wastewater, the present invention provides an anaerobic biological treatment device, treatment system and method for realizing low-energy and efficient methane collection by accumulating a small part of the energy during the aeration process and using the accumulated energy to intermittently drive a scraper to scrape off the foam generated during the methane separation process, as described in the following embodiments.

[0026] Embodiment 1

[0027] Some embodiments of the present application provide an anaerobic biological treatment device for winery wastewater, as Figures 1 to 4 shown, including an anaerobic reaction chamber 10 and a circulation module,

[0028] The anaerobic reaction chamber 10 includes a gas phase zone 300, a liquid phase zone 200, and a solid phase zone 100 arranged in sequence longitudinally. The gas phase zone 300, the liquid phase zone 200, and the solid phase zone 100 are in the same space inside the anaerobic reaction chamber 10. The solid phase zone 100 mainly contains a sludge bed, the liquid phase zone 200 mainly contains wastewater, and the gas phase zone 300 mainly contains air and methane. The solid phase zone 100 is connected with a liquid inlet and a sludge outlet. The liquid inlet can be a liquid equalizing pipe 110 arranged in the solid phase zone 100. A plurality of through holes are evenly arranged on the liquid equalizing pipe 110, and the plurality of through holes are respectively communicated with a liquid inlet pipe 130 arranged outside the anaerobic reaction chamber 10 for supplying new brewery wastewater into the anaerobic reaction chamber 10 for anaerobic reaction. The sludge outlet is communicated with a sludge discharge pipe 120 arranged outside the anaerobic reaction chamber 10 for cleaning the sludge at the bottom of the anaerobic reaction chamber 10. A liquid outlet pool 220 and a gas-liquid separation pool 210 are also arranged in the anaerobic reaction chamber 10. The gas-liquid separation pool 210 is arranged around the liquid outlet pool 220. The bottom of the liquid outlet pool 220 is communicated with a liquid discharge pipe 221, and the wastewater flows through the liquid discharge pipe 221 into the next treatment process, such as an aerobic treatment process. Along the liquid flow direction, the liquid phase zone 200, the gas-liquid separation pool 210, and the liquid outlet pool 220 are sequentially overflow-connected, so that the gas-liquid separation pool 210 is at the end of the anaerobic biological treatment. At this time, the methane concentration in the liquid is the highest. The gas-liquid separation pool 210 separates the liquid phase zone 200 and the liquid outlet pool 220, so that all the wastewater after anaerobic treatment must be subjected to gas-liquid separation treatment, thereby improving the gas-liquid separation effect. On this basis, limited by the limited space of the anaerobic reaction chamber 10, by setting the gas-liquid separation pool 210 around the liquid outlet pool 220, the exposed area of the gas-liquid separation pool 210 can be effectively enlarged, thereby increasing the aeration area and the aeration stroke, and realizing further improvement of the methane separation and collection effect by reasonably arranging the space structure. The gas phase zone 300 is connected with a gas collecting pipe 450, and the methane generated in the anaerobic reaction chamber 10 is collected through the gas collecting pipe 450;

[0029] The circulation module includes a circulation pump 420, an air equalizing pipe 440, a pneumatic energy storage unit 500 and a scraper 610. The inlet of the circulation pump 420 is connected to the gas phase zone 300 through the input channel 410, and the outlet of the circulation pump 420 is connected to the air equalizing pipe 440 located in the gas-liquid separation tank 210 through the output channel 430. A plurality of air holes are arranged on the air equalizing pipe 440, and the plurality of air holes are respectively connected to the output channel 430; the scraper 610 is arranged at the liquid surface of the gas-liquid separation tank 210, and there is a horizontal movement stroke along the liquid surface between the scraper 610 and the gas-liquid separation tank 210; the input end of the pneumatic energy storage unit 500 is located in the input channel 410 or the output channel 430 to realize the collection and storage of the kinetic energy of the fluid flowing to the air equalizing pipe 440, and the output end of the pneumatic energy storage unit 500 is transmission-connected to the scraper 610 to realize the driving of the scraper 610 to move horizontally along the liquid surface in the gas-liquid separation tank 210 when the energy is stored to a preset value. By arranging a pneumatic energy storage unit 500 in the input channel 410 or the output channel 430, due to the use of energy storage, the load increment of the circulation pump 420 is low, and thus the energy consumption increment caused by driving the scraper 610 to the entire device is small, which will not affect the normal operation of aeration. The scraper 610 can also work intermittently to scrape off the foam on the liquid surface of the gas-liquid separation tank, thereby increasing the amount of methane removed from the wastewater in the effective collection process section, thereby increasing the amount of methane collected per unit time, solving the technical problem of high energy consumption caused by the efficient collection of methane in the anaerobic biological treatment process of wine industry wastewater, and realizing low energy consumption and efficient collection of methane.

[0030] In addition, since the pneumatic energy storage unit 500 collects part of the kinetic energy of the fluid flowing to the air equalizing pipe 440 in the input channel 410 or the output channel 430, the energy storage speed is positively correlated with the working power of the circulation pump 420, thereby achieving adaptive regulation of the intermittent working frequency and aeration volume of the scraper 610, thereby improving the intelligence of the device operation while reducing energy consumption.

[0031] In some embodiments, the pneumatic energy storage unit 500 may be any one of a bladder accumulator, a diaphragm accumulator, a piston accumulator, and a spring accumulator.

[0032] In some embodiments, the pneumatic energy storage unit 500 includes an impeller 510 and a housing. A speed reduction transmission assembly 520, a rotating cylinder 540, a rotating shaft 550 and a limiting structure are arranged in the housing. The input end of the speed reduction transmission assembly 520 is connected to the impeller 510 arranged in the input channel 410 or the output channel 430. The output end of the speed reduction transmission assembly 520 is engaged with the rotating cylinder 540. The rotating cylinder 540 is coaxially sleeved on the rotating shaft 550. The rotating cylinder 540 is connected to the rotating shaft 550 through an elastic energy storage member 560. The limiting structure is used to limit the rotating shaft 550 in a locked state. A trigger structure is arranged at the output end of the speed reduction transmission assembly 520. The trigger structure is used to cooperate with the limiting structure to unlock the locking of the rotating shaft 550 by the limiting structure when the energy stored in the elastic energy storage member 560 reaches a preset value. During the energy storage process, the aeration airflow passes through the input channel 410 or the output channel 430, driving the impeller 510 to rotate. The rotational energy of the impeller 510 amplifies the power through the speed reduction transmission assembly 520, and then drives the rotating cylinder 540 to rotate. At this time, the rotating shaft 550 is restricted by the limiting structure and will not rotate, thereby forcing the elastic energy storage member 560 connecting the rotating cylinder 540 and the rotating shaft 550 to generate axial tensile torsion, storing the energy absorbed by the impeller 510. When the output end of the speed reduction transmission assembly 520 rotates to the position where the trigger structure corresponds to the limiting structure, the movement of the trigger structure releases the locking of the rotating shaft 550 by the limiting structure. At this time, the rotating cylinder 540 is restricted by the engagement of the output end of the speed reduction transmission assembly 520, and the energy stored in the elastic energy storage member 560 is released to drive the rotating shaft 550 to rotate, driving the scraper 610 to move horizontally along the liquid surface in the gas-liquid separation tank 210, scraping the foam on the liquid surface of the gas-liquid separation tank 210. In this way, the scraper 610 is intermittently driven to remove the foam, improving the methane separation effect in the gas-liquid separation tank 210. And the energy consumption increment of the whole device in the whole process is extremely small, which will not affect the normal operation of the aeration work. Moreover, because of the intermittent operation of the scraper 610, the foam on the liquid surface of the gas-liquid separation tank 210 can be scraped off, increasing the amount of methane removed from the wastewater in the effective collection process section, thereby increasing the methane collection amount per unit time, solving the technical problem of high energy consumption in the efficient collection of methane during the anaerobic biological treatment of wine industry wastewater, and realizing low-energy consumption and high-efficiency methane collection. Preferably, the speed reduction transmission assembly 520 is a prior art, specifically it can be a multi-stage gear set, which will not be elaborated here.

[0033] In some embodiments, to achieve the locking of the rotating shaft 550 by the limiting structure, such as Figure 7As shown, the limiting structure includes a reset member 572 and a locking member 571, the fixed end of the locking member 571 is hinged to the housing, the middle part of the locking member 571 is provided with a clamping portion 573 corresponding to the rotating shaft 550, the clamping portion 573 is used to clamp with the rotating shaft 550 to limit the rotating shaft 550 to be in a locked state, the free end of the locking member 571 is connected to the trigger structure, the reset member 572 is connected to the locking member 571, so that the locking member 571 is normally in the clamping state of the clamping portion 573 and the rotating shaft 550, and during the energy storage process, the force of the elastic energy storage member 560 on the rotating shaft forces the rotating shaft 550 to be locked. 50 has a tendency to rotate, and the force is transmitted to the locking piece 571 through the clamping portion 573, and the fixed end of the locking piece 571 cooperates with the shell to produce an anti-torque effect, thereby preventing the rotating shaft 550 from rotating; when the rotating shaft 550 is unlocked, since the trigger structure cooperates with the free end of the locking piece 571, the clamping portion 573 is located between the fixed end and the free end, which effectively increases the unlocking driving force arm of the driving locking piece 571 of the trigger structure, thereby further reducing the rotational energy requirement for the impeller 510, realizing the low-energy operation response of the trigger structure, and further improving the effect of low-energy and high-efficiency methane collection.

[0034] In some embodiments, in order to reduce the interference between the reduction transmission assembly 520 and the elastic energy storage member 560, a partition 580 can be set in the shell, and the reduction transmission assembly 520 and the elastic energy storage member 560 are separated by the partition 580. The reduction transmission assembly 520 is preferably arranged above the partition 580, and the rotating cylinder 540, the rotating shaft 550, the elastic energy storage member 560, the trigger structure and the limiting structure are arranged below the partition 580. The output end of the reduction transmission assembly 520 is meshed with the rotating cylinder 540 through the partition 580, the impeller 510 is meshed with the input end of the reduction transmission assembly 520 through the transmission shaft, and the output end of the rotating shaft 550 is connected to the scraper 610 through the shell. The fixed end of the locking member 571 is connected to the partition 580 is hinged, and a limiting groove is arranged on the partition 580. The free end of the locking member 571 is normally located in the limiting groove, and the free end of the locking member 571 abuts against the inner wall of the limiting groove. During the energy storage process, based on the abutment and cooperation between the free end of the locking member 571 and the inner wall of the limiting groove, the inner wall of the limiting groove shares the anti-torque effect of the rotating shaft, thereby achieving stress dispersion, protecting the stability of the hinged structure of the fixed end of the locking member 571, and improving the operating stability and safety of the limiting function of the limiting structure; after the elastic energy storage member 560 releases all the energy, the limiting structure is restored to the locking state of the clamping portion 573 and the rotating shaft 550 under the action of the reset member 572, and continues to store energy, thereby regularly and intermittently driving the scraper to scrape off the foam.

[0035] In some embodiments, the working stability and safety of the protection limiting structure are Figure 8As shown, an oblong hole 5711 can be provided at the free end of the locking member 571. The oblong hole 5711 penetrates through the locking member 571, and the length direction of the oblong hole 5711 coincides with the direction from the fixed end to the free end of the locking member 571. A fixing rod 581 is provided on the partition plate 580. The fixing rod 581 passes through the oblong hole 5711. Through the cooperation of the fixing rod 581 and the oblong hole 5711, it can not only ensure that the locking member 571 rotates around the hinge point, but also when the locking member 571 is subjected to the acting force of the rotating shaft 550, conduct the force to the fixing rod 581 to reduce the stress at the hinge point and ensure the working stability and safety of the limiting structure.

[0036] In some embodiments, one end of a reset member 572 can be connected to the partition plate 580, and the other end of the reset member 572 can be connected to the locking member 571. Under normal conditions, the reset member 572 applies a thrust / pull force to the locking member 571 to prompt the clamping portion 573 to stably cooperate and lock with the rotating shaft 550.

[0037] In some embodiments, the reset member 572 can be arranged corresponding to the clamping portion 573 to ensure the stable cooperation and locking of the clamping portion 573 with the rotating shaft 550.

[0038] In some embodiments, a rib can be provided on the clamping portion 573, and a groove matching the rib is provided on the rotating shaft 550 to lock the rotating shaft 550 to prevent it from rotating during the energy storage process; or, a rib can be provided on the rotating shaft 550, and a groove matching the rib is provided on the clamping portion 573 to lock the rotating shaft 550 to prevent it from rotating during the energy storage process.

[0039] To simplify the device structure and improve the space utilization rate, the trigger structure can include a rotating disk 530. An arc-shaped protrusion 531 is provided on the rotating disk 530. The arc-shaped protrusion 531 rotates coaxially with the output end of the speed reduction transmission assembly 520. During the rotation of the output end of the speed reduction transmission assembly 520, the locking member 571 overlaps with the rotating disk 530 or the arc-shaped protrusion 531. When the locking member 571 overlaps with the rotating disk 530, the rotating shaft 550 is in a locked state, and at this time, the elastic energy storage member 560 is in an energy storage state; when the locking member 571 overlaps with the arc-shaped protrusion 531, the arc-shaped protrusion 531 cooperates with the free end of the locking member 571 to separate the clamping portion 573 from the rotating shaft 550, making the rotating shaft 550 in an unlocked state. At this time, the elastic energy storage member 560 is in an energy release state, driving the rotating shaft 550 to rotate to drive the scraper 610 to move along the liquid surface of the gas-liquid separation tank 210 to remove the liquid surface foam; correspondingly, when there is one arc-shaped protrusion 531 on the rotating disk 530, one rotation of the rotating disk 530 corresponds to one intermittent working cycle of the scraper 610. When N arc-shaped protrusions 531 are evenly spaced on the rotating disk 530, one rotation of the rotating disk 530 corresponds to N intermittent working cycles of the scraper 610, and N is a positive integer greater than 1.

[0040] like Figures 2 to 6 As shown, since the gas-liquid separation tank 210 is an annular structure, an annular rotation stroke is provided for the scraper 610 radially arranged along the gas-liquid separation tank 210. In order to realize the regular movement of the scraper 610 along the annular rotation stroke to scrape off the foam, an input channel 410 or an output channel 430 for connecting and installing the scraper 610 can be provided, including a vertical section 431, the vertical section 431 is located on the rotation axis of the annular rotation stroke, a sleeve 620 is rotatably sleeved on the vertical section 431, the output end of the pneumatic energy storage unit 500 is connected to the sleeve 620 (the output end of the pneumatic energy storage unit 500 may be meshingly connected to the sleeve 620, and the sleeve 620 is rotatably connected to the vertical section 431 through a bearing), and the scraper 610 is coaxially rotatably connected to the sleeve 620 through a connecting piece, so that the pneumatic energy storage unit 500 can drive the scraper 610 to rotate around the axis along the annular liquid surface of the gas-liquid separation tank 210 when releasing energy, so that the scraper 610 can continuously and intermittently scrape off the foam.

[0041] In some embodiments, the connecting member and the sleeve 620 have a sliding stroke in the vertical direction, and the density of the scraper 610 is less than the density of the wastewater, so that the scraper 610, under the action of buoyancy, cooperates with the sliding stroke between the connecting member and the sleeve 620, so that the scraper 610 is always at the liquid surface of the gas-liquid separation tank 210. Even if the wastewater flow rate in the gas-liquid separation tank 210 fluctuates, the rotational resistance of the scraper 610 on the liquid surface of the gas-liquid separation tank 210 remains relatively stable, thereby ensuring the stable driving of the scraper 610 by the pneumatic energy storage unit 500 without being affected by the rise and fall of the liquid level caused by the fluctuation of the wastewater flow rate, thereby ensuring the stability and safety of the device operation. Preferably, the sliding connection between the connecting member and the sleeve 620 can be achieved by track matching, spline connection matching, and guide key matching. In this embodiment, a guide strip is circumferentially arranged on the peripheral wall of the sleeve 620. The connecting member includes a slip ring 630 sleeved on the sleeve 620. A guide groove matching the guide strip is arranged on the inner wall of the slip ring 630. Through the sliding matching of the guide strip and the guide groove along the axial direction of the sleeve 620, an axial sliding and coaxial rotation connection relationship between the connecting member and the sleeve is achieved.

[0042] In some embodiments, for the convenience of implementing customized solutions, multiple connection points can be provided between the connecting member and the sleeve 620 in the vertical direction, so that the height position of the scraper 610 in the gas-liquid separation tank 210 can be installed as required; preferably, in order to further reduce the energy consumption increment brought by scraping the floating foam to the entire device, a preset gap (preferably the preset gap is 0.1-0.8 cm) can be provided between the scraper 610 and the liquid level of the gas-liquid separation tank 210, so as to reduce the movement resistance of the liquid level of the gas-liquid separation tank 210 to the scraper 610, thereby reducing the lower limit requirement of the energy storage of the pneumatic energy storage unit 500 and further reducing the rotational energy requirement for the impeller 510, so as to achieve a low-energy operation response for scraping the floating foam.

[0043] Example 2

[0044] Some embodiments of the present application provide an anaerobic biological treatment system for wine industry wastewater, as Figure 9 shown, including a filtration module 20, a pH value adjustment module 30, an aerobic treatment module 40 and the anaerobic biological treatment device in Example 1. Along the liquid flow direction, the filtration module 20, the pH value adjustment module 30, the anaerobic biological treatment device and the aerobic treatment module 40 are arranged in sequence. Since the wine industry wastewater contains a large amount of large particle suspensions such as cereal residues and distiller's grains particles, it is necessary to first use the filtration module 20 to remove the large particle suspensions to reduce the risk of subsequent reactor blockage. The filtration module 20 can adopt a sieve (pore size 1–3 mm), a hydrocyclone or a sedimentation tank; then the pH value of the wastewater is adjusted to 6.8-7.5 through the pH value adjustment module 30 to ensure the activity of methanogens, and lime or sodium carbonate is preferably added to adjust the pH value of the wastewater; for the methane generated by the anaerobic biological treatment device, after desulfurization (biological desulfurization or chemical absorption) and dehydration treatment, it can be used as boiler fuel or for power generation; for the wastewater generated by the anaerobic biological treatment device, the aerobic treatment module 40 is connected (the aerobic treatment module can adopt the activated sludge method, the sequencing batch reactor (SBR) or the MBR membrane bioreactor (MBR) to further treat the wastewater) to further remove organic matter; for the sludge generated by the anaerobic biological treatment device, it can be incinerated or landfilled after dehydration and drying.

[0045] In some embodiments, for the wastewater generated in the distillation process, a temperature adjustment module 50 can be added between the pH value adjustment module 30 and the anaerobic biological treatment device, and the temperature adjustment module 50 is used to reduce the temperature value of the wastewater to 35°C - 40°C to avoid high-temperature inhibition of the activity of anaerobic bacteria.

[0046] Example 3

[0047] Some embodiments of the present application provide a method for treating wine industry wastewater, and the anaerobic biological treatment device in Example 1 or the anaerobic biological treatment system in Example 2 is used to treat the wine industry wastewater.

[0048] It should be noted that, in this document, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or apparatus comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or apparatus. Without further limitation, an element defined by the phrase "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising such element.

[0049] In addition, it should be pointed out that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in a reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0050] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily conceive of changes or substitutions, which should all be covered within the protection scope of the present invention.

Claims

1. An anaerobic biological treatment device for wine industry wastewater, characterized in that, It includes an anaerobic reaction chamber and a circulation module. The anaerobic reaction chamber includes a gas phase region, a liquid phase region, and a solid phase region arranged in sequence along the longitudinal direction. The solid phase region is communicatively provided with a liquid inlet and a sludge discharge port. An effluent tank and a gas-liquid separation tank are also arranged in the anaerobic reaction chamber. The gas-liquid separation tank surrounds the effluent tank. The bottom of the effluent tank is communicatively connected with a drain pipe. Along the liquid flow direction, the liquid phase region, the gas-liquid separation tank, and the effluent tank are sequentially overflow-connected. The gas phase region is communicatively provided with a gas collecting pipe. The circulation module includes a circulation pump, an air equalizing pipe, a pneumatic energy storage unit, and a scraper. The inlet of the circulation pump is communicatively connected with the gas phase region through an input channel, and the outlet of the circulation pump is communicatively connected with the air equalizing pipe located in the gas-liquid separation tank through an output channel. The scraper is arranged at the liquid level of the gas-liquid separation tank, and there is a horizontal movement stroke along the liquid level between the scraper and the gas-liquid separation tank. The input end of the pneumatic energy storage unit is located in the input channel or the output channel to collect and store the fluid kinetic energy flowing to the air equalizing pipe. The output end of the pneumatic energy storage unit is drivingly connected with the scraper to drive the scraper to horizontally move along the liquid level in the gas-liquid separation tank when the stored energy reaches a preset value. The pneumatic energy storage unit includes an impeller and a housing. A speed reduction transmission assembly, a rotating cylinder, a rotating shaft, and a limiting structure are arranged in the housing. The input end of the speed reduction transmission assembly is connected with the impeller arranged in the input channel or the output channel. The output end of the speed reduction transmission assembly is meshed with the rotating cylinder. The rotating cylinder is coaxially sleeved on the rotating shaft. The rotating cylinder is connected with the rotating shaft through an elastic energy storage member. The limiting structure is used to limit the rotating shaft in a locked state. A triggering structure is arranged at the output end of the speed reduction transmission assembly. The triggering structure is used to cooperate with the limiting structure to unlock the locking of the limiting structure on the rotating shaft when the elastic energy storage member stores energy to a preset value. The limiting structure includes a reset member and a locking member. The fixed end of the locking member is hinged to the housing. A clamping portion corresponding to the rotating shaft is arranged in the middle of the locking member. The clamping portion is used to be clamped with the rotating shaft to limit the rotating shaft in a locked state. The free end of the locking member is connected with the triggering structure. The reset member is connected with the locking member to make the locking member normally in a state where the clamping portion is clamped with the rotating shaft.

2. An anaerobic biological treatment device for wine industry wastewater according to claim 1, characterized in that, A partition is arranged in the housing. The fixed end of the locking member is hinged to the partition. A limiting groove is arranged on the partition. The free end of the locking member is normally located in the limiting groove, and the free end of the locking member abuts against the inner wall of the limiting groove.

3. The anaerobic biological treatment device for wine industry wastewater according to claim 2, characterized in that, One end of the reset member is connected with the partition, and the other end of the reset member is connected with the locking member. And / or, the reset member is correspondingly arranged with the clamping portion. And / or, a rib is arranged on one of the clamping portion and the rotating shaft, and a groove matching the rib is arranged on the other of the clamping portion and the rotating shaft.

4. An anaerobic biological treatment device for wine industry wastewater according to any one of claims 1 to 3, characterized in that, The triggering structure includes a rotating disk. An arc-shaped protrusion is arranged on the rotating disk. The arc-shaped protrusion rotates coaxially with the output end of the speed reduction transmission assembly. During the rotation of the output end of the speed reduction transmission assembly, the locking member is lapped with the rotating disk or the arc-shaped protrusion. When the locking member is lapped with the rotating disk, the rotating shaft is in a locked state. When the arc-shaped protrusion is lapped with the rotating disk, the rotating shaft is in an unlocked state.

5. An anaerobic biological treatment device for wine industry wastewater according to any one of claims 1 to 3, characterized in that, The input channel or the output channel includes a vertical section, a sleeve is rotatably sleeved on the vertical section, the output end of the pneumatic energy storage unit is connected to the sleeve, and the scraper is coaxially and rotatably connected to the sleeve through a connecting member.

6. An anaerobic biological treatment device for wine industry wastewater according to claim 5, characterized in that, The connecting member and the sleeve have a sliding stroke in the vertical direction; and / or, there are multiple connection points between the connecting member and the sleeve in the vertical direction; and / or, there is a preset gap between the scraper and the liquid level of the gas-liquid separation tank.

7. An anaerobic biological treatment system for wine industry wastewater, characterized in that, It includes a filtration module, a pH adjustment module, an aerobic treatment module, and the anaerobic biological treatment device according to any one of claims 1 to 6. Along the liquid flow direction, the filtration module, the pH adjustment module, the anaerobic biological treatment device, and the aerobic treatment module are arranged in sequence.

8. A method for treating wine industry wastewater, characterized in that, The wine industry wastewater is treated by using the anaerobic biological treatment device according to any one of claims 1 to 6 or the anaerobic biological treatment system according to claim 7.

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