Biomass gasification process wastewater treatment device

Abstract

The present application relates to sewage wastewater treatment device technical field, especially to a kind of biomass gasification process sewage wastewater treatment device.Its technical scheme includes: sedimentation tank, further include: rotation installation in the inside of sedimentation tank drive shaft, plankton lifting component, the plankton lifting component is installed on drive shaft, cleaning guide component installed on drive shaft, collection component, the collection component is installed on drive shaft, one side of the collection component is below liquid level, the other side is above liquid level, the collection component is collected on the plankton of liquid level, and mechanism after collection plankton is discharged to the outside of sedimentation tank.The present application does not need to use filter medium to filter suspended matter, can remove suspended matter inside sedimentation tank.It avoids the need to frequently replace and clean filter medium, prevents screen from being blocked, reduces the flow of sewage, so as to cause the problem of poor filtering efficiency.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment equipment, and more particularly to a wastewater treatment equipment using a biomass gasification process. Background Technology

[0002] Biomass gasification is a process that converts biomass into combustible gas or syngas. Biomass mainly refers to plant residues, agricultural waste, forestry byproducts, and urban and industrial organic waste. This technology not only effectively utilizes biomass resources and reduces environmental pollution from waste, but also provides renewable energy and helps reduce greenhouse gas emissions. However, biomass gasification processes generate wastewater during syngas production. This wastewater primarily originates from the purification and byproduct treatment stages of the gasification process. The wastewater may contain various organic compounds, inorganic salts, heavy metals, and suspended particulate matter.

[0003] When treating this wastewater, the first step is to remove impurities, such as various floating matter. Floating matter in wastewater mainly refers to water-insoluble solid particles, such as biomass residues, including incompletely gasified biomass particles like cellulose, hemicellulose, and lignin. These suspended solids are typically removed using physical methods such as screens, sand filters, and activated carbon filtration. The filter media intercepts the suspended solids. However, when treating large volumes of wastewater, frequent replacement and cleaning of the filter media are necessary; otherwise, the adsorption effect on suspended solids will decrease, leading to poorer filtration. Furthermore, a large amount of suspended solids adhering to the screen can cause blockage, reducing wastewater flow and further decreasing filtration efficiency. Summary of the Invention

[0004] The purpose of this invention is to address the problem mentioned in the background art that requires frequent replacement and cleaning of filter media when treating large amounts of wastewater. This invention proposes a wastewater treatment device for biomass gasification processes that can remove suspended solids inside a sedimentation tank without using filter media.

[0005] On one hand, the present invention proposes a wastewater treatment device for biomass gasification process, including a sedimentation tank, and further comprising:

[0006] A drive shaft is rotatably installed inside the sedimentation tank, and a drive assembly for driving the drive shaft to rotate is installed on the sedimentation tank.

[0007] A flotation lifting component is mounted on a drive shaft. The flotation lifting component rotates in the sedimentation tank with the drive shaft. The flotation lifting component captures the floating matter inside the sedimentation tank and drives the floating matter to move upward to the liquid surface.

[0008] The cleaning guide component is installed on the drive shaft. The cleaning guide component is located above the floatation lifting component and close to the liquid surface. The cleaning guide component cleans the floating matter adhering to the floatation lifting component and transports the cleaned floating matter to the surface of the liquid.

[0009] A collection component is mounted on a drive shaft, with one side of the collection component located below the liquid surface and the other side located above the liquid surface. The collection component collects floating matter on the liquid surface and discharges the collected floating matter to the outside of the sedimentation tank.

[0010] Optionally, multiple support columns are fixedly installed on the sedimentation tank, support plates are fixedly installed on the support columns, drive boxes are fixedly installed on the multiple support plates, and the drive shaft is rotatably connected to the drive boxes.

[0011] Optionally, the drive assembly includes a first motor fixedly installed inside the drive housing, and the output shaft of the first motor is coaxially and fixedly connected to the drive shaft.

[0012] Optionally, the floating lifting component includes a connecting plate fixedly mounted on the drive shaft, two mounting strips fixedly mounted on the connecting plate, and support strips fixedly mounted on the mounting strips. The four support strips are paired, and multiple mounting seats are fixedly mounted on the two corresponding support strips. The multiple mounting seats are staggered. Two pulley seats are fixedly mounted on the upper and lower sides of each mounting seat. Conveyor belts are fixedly mounted on the multiple pulley seats. A second motor is fixedly mounted on one of the pulley seats. Linkage shafts are fixedly mounted on the multiple conveyor belts located on the two corresponding support strips. First linkage belts are fixedly mounted on the two linkage shafts. The output shaft of the second motor is coaxially and fixedly connected to one of the linkage shafts.

[0013] Optionally, baffles are fixedly installed on both sides of the conveyor belt, and lifting bars are fixedly installed on the conveyor belt, with the lifting bars located inside the baffles.

[0014] Optionally, the cleaning guide component includes a base fixedly mounted on a drive shaft, a first mounting rod and a second mounting rod fixedly mounted on the base, a plurality of first support blocks fixedly mounted on the first mounting rod, and a plurality of second support blocks fixedly mounted on the second mounting rod. The plurality of first support blocks and the plurality of second support blocks correspond one-to-one. A roller brush is rotatably mounted between the corresponding first support blocks and the corresponding second support blocks. The roller brush corresponds one-to-one with the plurality of conveyor belts and is located above the conveyor belts. The roller brush is equipped with a plurality of bristles. A motor base is fixedly mounted on one of the second support blocks. A third motor is fixedly mounted on the motor base. A second linkage belt is fixedly mounted on the plurality of second support blocks. A plurality of pulleys on the second linkage belt correspond one-to-one with the plurality of roller brushes and are fixedly connected. The output shaft of the third motor is coaxially fixedly connected to one of the pulleys on the second linkage belt. A plurality of vortex devices are fixedly mounted on the drive shaft. The vortex devices are mounted above the roller brushes and correspond one-to-one with the roller brushes.

[0015] Optionally, the collecting component includes a collecting box fixedly mounted on a drive shaft, the collecting box having a collecting trough and a storage trough, a lifting plate slidably mounted in the storage trough, a push rod motor fixedly mounted on the collecting box, the output shaft of the push rod motor being fixedly connected to the lifting plate, a reciprocating screw rotatably mounted on the collecting box, a push block threadedly connected to the reciprocating screw, a guide plate fixedly mounted on the collecting box extending to the outside of the sedimentation tank, a fourth motor fixedly mounted on the guide plate, the output shaft of the fourth motor being coaxially fixedly connected to the reciprocating screw.

[0016] Optionally, the sedimentation tank is equipped with a sludge trough and a discharge pipe, the discharge pipe is connected to the sludge discharge pipe, the sludge discharge pipe is fixedly installed on the sedimentation tank, a valve is installed in the sludge discharge pipe, and a sludge guiding component is installed on the drive shaft, the sludge guiding component pushes the sludge at the bottom of the sedimentation tank into the sludge trough.

[0017] Optionally, the sludge guiding component includes a collection hood fixedly installed on a drive shaft. The collection hood includes a front baffle and a rear baffle. A gap is provided between the front baffle and the bottom of the sedimentation tank, and the rear baffle contacts the bottom of the sedimentation tank. A synchronization plate is movably installed inside the collection hood, and multiple sludge discharge plates are fixedly installed on the synchronization plate. A support base is installed at a height on the collection hood, and a fifth motor is fixedly installed on the support base. A drive disk is rotatably installed on the collection hood. The output shaft of the fifth motor is coaxially and fixedly connected to the drive disk. A connecting rod is rotatably installed on the drive disk, and a connecting strip is rotatably installed at the other end of the connecting rod. A sliding groove is provided on the connecting strip, and a slider is slidably installed in the sliding groove. An oblong hole is provided on the collection hood, and the slider is slidably connected to the oblong hole.

[0018] On the other hand, the present invention proposes a method for treating wastewater from biomass gasification processes, applied to the above-mentioned wastewater treatment device for biomass gasification processes. This method includes the following steps:

[0019] Step 1: Drive the drive shaft to rotate via the drive assembly;

[0020] Step 2: Driven by the drive shaft, the flotation lifting component rotates inside the sedimentation tank. The flotation lifting component captures the floating matter in the sedimentation tank and transports the floating matter to a position close to the liquid surface.

[0021] Step 3: Remove the floating debris adhering to the floatation lifting component by cleaning the guide component, and transport the floating debris conveyed by the floatation lifting component to the liquid surface;

[0022] Step 4: Collect the floating matter that has moved to the surface of the liquid using the collection components, and discharge the collected floating matter to the outside of the sedimentation tank;

[0023] Step 5: The drive shaft drives the sludge guiding component to rotate inside the sedimentation tank, and the sludge settled inside the sedimentation tank is transported to the sludge tank through the sludge guiding component.

[0024] Step Six: Open the valve and, under the pressure of the water inside the sedimentation tank, discharge the sludge from the sludge tank to the outside of the sedimentation tank.

[0025] Compared with the prior art, the present invention has the following beneficial technical effects:

[0026] The first motor drives the drive shaft to rotate, causing the flotation lifting component, cleaning guide component, and collection component to rotate synchronously within the wastewater. The flotation lifting component adsorbs floating debris and moves it from various depths within the sedimentation tank to a position close to the liquid surface for easy collection. The cleaning guide component detaches floating debris attached to the conveyor belt, ensuring effective separation, and a vortex device moves the debris to the liquid surface. Finally, the collection component collects the floating debris on the liquid surface and discharges it to the outside of the sedimentation tank, thus completing the removal of floating debris from the wastewater. This eliminates the need for filter media to remove suspended solids from the sedimentation tank, avoiding the need for frequent filter media replacement and cleaning, preventing screen clogging, reduced wastewater flow, and consequently, decreased filtration efficiency.

[0027] Furthermore, when the floating lifting component is rotated inside the wastewater by the drive shaft, the wastewater is agitated. This agitation allows suspended solids in the wastewater to be distributed more evenly, increasing their contact area with the flocculant, thereby accelerating settling and improving sedimentation efficiency. Agitation also prevents sludge from forming a floating layer at the bottom of the tank. It breaks up this floating layer, ensuring that the sludge can effectively settle to the bottom. Finally, agitation improves the flocculation state of the sludge, making it easier to dewater and dispose of. Attached Figure Description

[0028] Figure 1 A structural schematic diagram of one embodiment of the present invention is given. Figure 1 ;

[0029] Figure 2 A structural schematic diagram of one embodiment of the present invention is given. Figure 2 ;

[0030] Figure 3 An internal sectional view of one embodiment of the present invention is provided;

[0031] Figure 4 Schematic diagram of the internal structure of the sedimentation tank Figure 1 ;

[0032] Figure 5 Schematic diagram of the internal structure of the sedimentation tank Figure 2 ;

[0033] Figure 6 Schematic diagram of the floating lifting component Figure 1 ;

[0034] Figure 7 Schematic diagram of the floating lifting component Figure 2 ;

[0035] Figure 8 Schematic diagram of the floating lifting component Figure 3 ;

[0036] Figure 9 Schematic diagram of the floating lifting component Figure 4 ;

[0037] Figure 10 Structural diagram of the cleaning guide component Figure 1 ;

[0038] Figure 11 Structural diagram of the cleaning guide component Figure 2 ;

[0039] Figure 12 This is a schematic diagram showing the positions of the roller brush, conveyor belt, and vortex device.

[0040] Figure 13 Schematic diagram of the structure of the collecting components Figure 1 ;

[0041] Figure 14 Schematic diagram of the structure of the collecting components Figure 2 ;

[0042] Figure 15 A schematic diagram of the sludge guiding component;

[0043] Figure 16 A schematic diagram of the sludge guiding component;

[0044] Figure 17 A schematic diagram of the sludge guiding component;

[0045] Figure 18 for Figure 16 A magnified view of a portion of point A in the middle.

[0046] Reference numerals: 1. Sedimentation tank; 2. Support column; 201. Support plate; 202. Drive box; 3. Drive shaft; 4. First motor; 5. Connecting plate; 501. Mounting strip; 502. Support strip; 503. Mounting base; 504. Pulley seat; 505. Conveyor belt; 506. Second motor; 507. Linkage shaft; 508. First linkage belt; 509. Baffle; 510. Lifting strip; 6. Base; 601. First mounting rod; 602. Second mounting rod; 603. First support block; 604. Second support block; 605. Roller brush; 606. Motor base; 607. Third motor; 608. Second linkage belt; 7. Vortex assembly 8. Collection box; 801. Collection trough; 802. Storage trough; 803. Lifting plate; 804. Push rod motor; 805. Reciprocating screw; 806. Push block; 807. Fourth motor; 808. Guide plate; 9. Sludge trough; 901. Discharge pipe; 902. Sludge discharge pipe; 903. Valve; 10. Collection cover; 1001. Front baffle; 1002. Rear baffle; 1003. Synchronization plate; 1004. Sludge discharge plate; 1005. Support base; 1006. Fifth motor; 1007. Drive disc; 1008. Connecting rod; 1009. Connecting bar; 1010. Slide groove; 1011. Sliding block; 1012. Waist-shaped hole. Detailed Implementation

[0047] The technical solutions of this disclosure will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments.

[0048] The components of the embodiments of this disclosure, which are typically described and shown in the accompanying drawings, can be arranged and designed in a variety of different configurations. Therefore, the following detailed description of embodiments of this disclosure provided in the drawings is not intended to limit the scope of the claimed disclosure, but merely to illustrate selected embodiments of the disclosure.

[0049] Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure.

[0050] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0051] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0052] Example 1

[0053] like Figure 1-3 As shown, this invention provides a wastewater treatment device for biomass gasification processes, comprising a sedimentation tank 1, a drive shaft 3, a flotation lifting component, a cleaning and guiding component, and a collection component. Specifically, the drive shaft 3 is rotatably mounted inside the sedimentation tank 1, which is circular, and the drive shaft 3 is coaxial with the sedimentation tank 1. Multiple support columns 2 are fixedly mounted on the sedimentation tank 1, and support plates 201 are fixedly mounted on the support columns 2. A drive box 202 is fixedly mounted on the multiple support plates 201, and the drive shaft 3 is rotatably connected to the drive box 202. The multiple support plates 201 support the drive box 202.

[0054] Furthermore, a drive assembly is installed on the sedimentation tank 1 to drive the drive shaft 3 to rotate. The drive assembly includes a first motor 4 fixedly installed inside the drive housing 202, and the output shaft of the first motor 4 is coaxially and fixedly connected to the drive shaft 3. The first motor 4 can drive the drive shaft 3 to rotate.

[0055] like Figure 4-9As shown, the flotation lifting component is mounted on the drive shaft 3. The flotation lifting component rotates within the sedimentation tank 1 along with the drive shaft 3, capturing and driving the suspended matter in the sedimentation tank upwards towards the surface. The flotation lifting component includes a connecting plate 5 fixedly mounted on the drive shaft 3, two mounting strips 501 fixedly mounted on the connecting plate 5, and support strips 502 fixedly mounted on the mounting strips 501. The four support strips 502 are paired, and multiple mounting seats 503 are fixedly mounted on each pair of corresponding support strips 502. The mounting seats 503 are staggered, and two pulley seats 504 are fixedly mounted on the upper and lower sides of each mounting seat 503. Conveyor belts 505 are fixedly mounted on the pulley seats 504. The conveyor belts 505 rotate within the sedimentation tank 1 along with the drive shaft 3, ensuring uniform contact between the conveyor belts 505 and the wastewater inside the sedimentation tank 1. Furthermore, because the multiple conveyor belts 505 are divided into two rows and are staggered, there are gaps between adjacent conveyor belts 505 on the same plane. Sewage can flow through these gaps between the conveyor belts 505. Sewage passing through these gaps will not come into contact with the first row of conveyor belts 505. The second row of conveyor belts 505 is located between adjacent conveyor belts 505 in the first row, so that sewage that did not come into contact with the first row of conveyor belts 505 will come into contact with the second row of conveyor belts 505 and eventually flow out through the gaps between the second row of conveyor belts 505. This ensures uniform contact between the sewage and the conveyor belts 505 and allows the sewage to circulate within the sedimentation tank 1. When floating objects in the sewage come into contact with the conveyor belts 505, the conveyor belts 505 rotate with the drive shaft 3 inside the sedimentation tank 1, thereby applying a thrust to the floating objects, achieving the effect of adsorbing the floating objects onto the conveyor belts 505. A second motor 506 is fixedly mounted on one of the pulley seats 504. Linkage shafts 507 are fixedly mounted on multiple conveyor belts 505 located on two corresponding support bars 502. A first linkage belt 508 is fixedly mounted on each of the two linkage shafts 507. The output shaft of the second motor 506 is coaxially and fixedly connected to one of the linkage shafts 507. Starting the second motor 506 drives the connected linkage shaft 507 to rotate. Through the transmission of the first linkage belt 508, the two linkage shafts 507 rotate synchronously. Since the linkage shafts 507 are fixedly connected to the conveyor belts 505, they can drive multiple conveyor belts 505 to rotate synchronously. When the conveyor belts 505 rotate, they can transport the floating matter attached to them upwards, thus transporting the floating matter to a position near the liquid surface. This allows floating matter at various depths in the sedimentation tank to move to a position near the liquid surface for easy collection.

[0056] The conveyor belt 505 has baffles 509 fixedly installed on both sides, and lifting bars 510 fixedly installed on the conveyor belt 505, with the lifting bars 510 located inside the baffles 509. The baffles 509 prevent floating objects from sliding to the sides of the conveyor belt 505 as it moves, thus preventing them from falling off. The lifting bars 510 increase the friction between the conveyor belt 505 and the floating objects, improving the conveying effect of the conveyor belt. The floating objects can also float onto the lifting bars 510, which apply an upward supporting force, further enhancing the lifting effect of the conveyor belt 505 on the floating objects.

[0057] like Figure 10-12 As shown, the cleaning guide component is installed on the drive shaft 3. The cleaning guide component is located above the floatation lifting component and close to the liquid surface. It cleans the floating matter adhering to the floatation lifting component and transports the cleaned matter to the surface of the liquid. When the conveyor belt 505 lifts the floating objects to the highest point, the cleaning guide component cleans the floating objects attached to the lifting bar 510 and discharges the cleaned floating objects onto the liquid surface. The cleaning guide component includes a base 6 fixedly installed on the drive shaft 3, a first mounting rod 601 fixedly installed on the base 6, and a second mounting rod 602 fixedly installed on the base 6. Multiple first support blocks 603 are fixedly installed on the first mounting rod 601, and multiple second support blocks 604 are fixedly installed on the second mounting rod 602. The multiple first support blocks 603 and multiple second support blocks 604 correspond one-to-one. A roller brush 605 is rotatably installed between the corresponding first support blocks 603 and second support blocks 604. The multiple roller brushes 605 correspond one-to-one with the multiple conveyor belts 505 and are located above the conveyor belts 505. Multiple bristles are installed on the roller brushes 605 (the bristles are not shown in the figure, but they are flexible and can contact the top of the conveyor belts 505).

[0058] When the roller brush 605 rotates, it drives the bristles to rotate, causing the bristles to clean the top of the conveyor belt 505. This removes floating debris from the conveyor belt 505, preventing it from remaining on the belt. A motor base 606 is fixedly mounted on one of the second support blocks 604, and a third motor 607 is fixedly mounted on the motor base 606. Multiple second linkage belts 608 are fixedly mounted on the second support blocks 604. Multiple pulleys on the second linkage belt 608 correspond one-to-one with and are fixedly connected to the multiple roller brushes 605. The output shaft of the third motor 607 is coaxially fixedly connected to one of the pulleys on the second linkage belt 608. Starting the third motor 607 drives one of the pulleys on the second linkage belt 608 to rotate, causing the multiple second pulleys on the second linkage belt 608 to rotate synchronously. This, in turn, drives the multiple roller brushes 605 to rotate synchronously, allowing the roller brushes 605 to clean the floating debris attached to the conveyor belt 505. Multiple vortex devices 7 are fixedly mounted on the drive shaft 3. Each vortex device 7 is installed above and corresponds to one of the roller brushes 605. Inside each vortex device 7 are vortex blades and a drive component that rotates the vortex blades. Activating the vortex device 7 transports the wastewater below the vortex blades upwards. After the roller brush 605 cleans the floating debris from the conveyor belt 505, the debris will be within the depth range of the roller brush 605. Because the vortex devices 7 are located above the roller brush 605, they can move the wastewater in the area of ​​the roller brush 605 upwards, thereby causing the floating debris in that area to rise and be moved to the surface of the liquid.

[0059] like Figure 13-14As shown, the collecting component is installed on the drive shaft 3, with one side below the liquid surface and the other side above it. The collecting component collects floating matter on the liquid surface and discharges the collected matter to the outside of the sedimentation tank 1. The collecting component includes a collecting box 8 fixedly installed on the drive shaft 3. The collecting box 8 has a collecting trough 801 and a storage trough 802. The collecting box 8 rotates with the drive shaft 3, and there is a certain angle between the collecting box 8 and the vortex device 7. After the vortex device 7 transports the floating matter to the surface, it continues to move forward with the rotation of the drive shaft 3. The collecting box 8, located behind the vortex device 7, moves closely behind it, collecting the floating matter transported to the liquid surface by the vortex device 7. As the collecting box 8 rotates, the floating matter on the liquid surface enters the collecting trough 801. The collecting box 8 has a mesh structure, allowing wastewater to pass through, but preventing floating matter inside the wastewater from passing through. A lifting plate 803 is slidably installed inside the storage tank 802, and a push rod motor 804 is fixedly installed on the collection tank 8. The output shaft of the push rod motor 804 is fixedly connected to the lifting plate 803. The lifting plate 803 is initially located inside the storage tank 802, and at this time, the top of the lifting plate 803 is on the same plane as the bottom of the collection tank 801. At this time, under the action of the water flow caused by the continuous rotation of the collection tank 8, the floating objects will accumulate on the lifting plate 803 through the collection tank 801. When a certain amount of floating objects have accumulated on the lifting plate 803, the lifting plate 803 will be driven to rise under the action of the push rod motor 804. At this time, the lifting plate 803 will drive the floating objects on the lifting plate to rise, and the height of the floating objects will be higher than the height of the liquid surface. A reciprocating screw 805 is rotatably mounted on the collection tank 8, and a pusher block 806 is threadedly connected to the reciprocating screw 805. A guide plate 808 is fixedly mounted on the collection tank 8, extending to the outside of the sedimentation tank 1. A fourth motor 807 is fixedly mounted on the guide plate 808, and the output shaft of the fourth motor 807 is coaxially and fixedly connected to the reciprocating screw 805. By driving the reciprocating screw 805 to rotate through the fourth motor 807, the pusher block 806 can be driven to reciprocate along the reciprocating screw 805. After the lifting plate 803 rises, the pusher block 806 can contact the lifting plate 803, thereby pushing the floating objects on the lifting plate 803 into the guide plate 808 through the reciprocating pusher block 806, and then discharging them to the outside of the sedimentation tank 1 through the guide plate 808, thus completing the removal of floating objects in the sewage.

[0060] Working principle: Wastewater is transported into sedimentation tank 1, where the first motor 4 drives the drive shaft 3 to rotate. The conveyor belt 505 rotates within sedimentation tank 1 along with the drive shaft 3. When floating debris in the wastewater comes into contact with the conveyor belt 505, the rotation of the conveyor belt 505 with the drive shaft 3 applies a pushing force, causing the debris to adhere to the conveyor belt 505. Starting the second motor 506 drives multiple conveyor belts 505 to rotate synchronously. As the conveyor belts 505 rotate, they transport the floating debris attached to them upwards, bringing them closer to the surface. This moves floating debris from various depths within the sedimentation tank closer to the surface for easier collection.

[0061] Starting the third motor 607 will drive multiple roller brushes 605 to rotate synchronously. The roller brushes 605 will then drive the bristles to rotate, causing the bristles to clean the top of the conveyor belt 505. This will remove floating objects attached to the conveyor belt 505 and prevent them from remaining on the conveyor belt 505. Activating the vortex device 7 will move the floating objects to the liquid surface.

[0062] The collection box 8 rotates along with the drive shaft 3, collecting the floating debris conveyed to the liquid surface by the vortex device 7. As the collection box 8 rotates, the floating debris on the liquid surface enters the collection tank 801. When a certain amount of floating debris accumulates on the lifting plate 803, the push rod motor 804 drives the lifting plate 803 to rise. At this time, the lifting plate 803 will lift the floating debris on it, making the height of the floating debris higher than the liquid surface. The fourth motor 807 drives the push block 806 to reciprocate along the reciprocating screw 805. The reciprocating push block 806 discharges the floating debris on the lifting plate 803 to the outside of the sedimentation tank 1, thus completing the removal of floating debris from the wastewater.

[0063] Example 2

[0064] like Figure 15-18 As shown, based on Embodiment 1, the sedimentation tank 1 is equipped with a sludge trough 9 and a discharge pipe 901. The discharge pipe 901 is connected to a sludge discharge pipe 902. The sludge discharge pipe 902 is fixedly installed on the sedimentation tank 1, and a valve 903 is installed inside the sludge discharge pipe 902. Sludge will enter the sludge trough 9. When sludge needs to be discharged, opening the valve 903 will force the sludge inside the sludge trough 9 into the discharge pipe 901 under the action of water pressure inside the sedimentation tank 1, and then allow it to flow to the outside of the sedimentation tank 1 through the sludge discharge pipe 902. A sludge guiding component is installed on the drive shaft 3, which pushes the sludge at the bottom of the sedimentation tank 1 into the sludge trough 9.

[0065] The sludge guiding component includes a collection hood 10 fixedly installed on the drive shaft 3. The collection hood 10 includes a front baffle 1001 and a rear baffle 1002. There is a gap between the front baffle 1001 and the bottom of the sedimentation tank 1, and the rear baffle 1002 contacts the bottom of the sedimentation tank 1. When the collection hood 10 rotates with the drive shaft 3, it will contact the sludge at the bottom of the sedimentation tank 1 through the rear baffle 1002. The sludge at the bottom of the sedimentation tank 1 is scraped up by the rear baffle 1002, so that the sludge adheres to the rear baffle 1002. The collection hood 10 is designed to prevent the sludge from spreading in all directions when it is scraped off, and to prevent the settled sludge from floating back into the sewage. A synchronous plate 1003 is movably installed inside the collection hood 10. Multiple mud-discharging plates 1004 are fixedly installed on the synchronous plate 1003. A support base 1005 is installed at a height on the collection hood 10. A fifth motor 1006 is fixedly installed on the support base 1005. A drive disk 1007 is rotatably installed on the collection hood 10. The output shaft of the fifth motor 1006 is coaxially and fixedly connected to the drive disk 1007. A connecting rod 1008 is rotatably installed on the drive disk 1007. A connecting strip 1009 is rotatably installed at the other end of the connecting rod 1008. A groove 1010 is provided on the connecting strip 1009. A slider 1011 is slidably installed in the groove 1010. An oblong hole 1012 is provided on the collection hood 10. The slider 1011 is slidably connected to the oblong hole 1012. The fifth motor 1006 is started, driving the drive disc 1007 to rotate, which in turn drives the connecting rod 1008 to rotate. Since the connecting strip 1009 is slidably connected to the collection cover 10, the rotating connecting rod 1008 drives the connecting strip 1009 to reciprocate. Since the slider 1011 is slidably connected to the oblong hole 1012, the slider 1011 reciprocates with the connecting strip 1009. While reciprocating, the slider 1011 slides up and down on the connecting strip 1009 along the trajectory of the oblong hole 1012. Since the slider 1011 is fixedly connected to the synchronous plate 1003, the slider 1011 can drive the synchronous plate 1003 to move to the left, then up, then to the right, and finally down. Driven by the fifth motor 1006, the synchronous plate 1003 will repeat the above actions, thereby driving multiple sludge discharge plates 1004 to continuously push the sludge on the rear baffle 1002 into the sludge tank 9.

[0066] Another aspect of the present invention proposes a method for treating wastewater from biomass gasification processes, applied to the above-mentioned wastewater treatment device for biomass gasification processes. This method includes the following steps:

[0067] Step 1: Drive the drive shaft 3 to rotate via the drive assembly;

[0068] Step 2: Driven by the drive shaft 3, the flotation lifting component rotates inside the sedimentation tank 1. The flotation lifting component captures the floating matter in the sedimentation tank and transports the floating matter to a position close to the liquid surface.

[0069] Step 3: Remove the floating debris adhering to the floatation lifting component by cleaning the guide component, and transport the floating debris conveyed by the floatation lifting component to the liquid surface;

[0070] Step 4: Collect the floating matter that has moved to the surface of the liquid using the collection components, and discharge the collected floating matter to the outside of sedimentation tank 1;

[0071] Step 5: Drive shaft 3 drives sludge guiding component to rotate inside sedimentation tank 1, and transports the sludge settled inside sedimentation tank 1 to sludge tank 9 through sludge guiding component.

[0072] Step 6: Open valve 903, and under the action of water pressure inside sedimentation tank 1, discharge the sludge inside sludge tank 9 to the outside of sedimentation tank 1.

[0073] Working principle: When the collection hood 10 rotates with the drive shaft 3, it contacts the sludge at the bottom of the sedimentation tank 1 through the rear baffle 1002. The rear baffle 1002 scrapes up the sludge at the bottom of the sedimentation tank 1, causing the sludge to adhere to the rear baffle 1002. The fifth motor 1006 is then activated to drive the connecting bar 1009 to reciprocate. Since the slider 1011 is slidably connected to the oblong hole 1012, the slider 1011 reciprocates with the connecting bar 1009. While reciprocating, the slider 1011 slides up and down on the connecting bar 1009 along the trajectory of the oblong hole 1012, thereby driving multiple sludge discharge plates 1004 to continuously push the sludge on the rear baffle 1002 into the sludge trough 9. When sludge needs to be discharged, opening valve 903 will force the sludge inside the sludge tank 9 into the discharge pipe 901 under the action of water pressure inside the sedimentation tank 1, and then allow it to flow to the outside of the sedimentation tank 1 through the sludge discharge pipe 902.

[0074] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A wastewater treatment device for biomass gasification process, comprising a sedimentation tank (1), characterized in that, Also includes: A drive shaft (3) is installed inside the sedimentation tank (1), and a drive assembly for driving the drive shaft (3) to rotate is installed on the sedimentation tank (1). A flotation lifting component is mounted on a drive shaft (3). The flotation lifting component rotates within the sedimentation tank (1) along with the drive shaft (3). The flotation lifting component captures the floating matter inside the sedimentation tank and drives the floating matter to move upwards above the liquid surface. The flotation lifting component includes a connecting plate (5) fixedly mounted on the drive shaft (3), two mounting strips (501) fixedly mounted on the connecting plate (5), and support strips (502) fixedly mounted on the mounting strips (501). The four support strips (502) are paired, and multiple mounting seats (502) are fixedly mounted on the two corresponding support strips (502). 03), multiple mounting seats (503) are installed in a staggered manner. Two pulley seats (504) are fixedly installed on the upper and lower sides of each mounting seat (503). Conveyor belts (505) are fixedly installed on multiple pulley seats (504). A second motor (506) is fixedly installed on one of the pulley seats (504). Linkage shafts (507) are fixedly installed on multiple conveyor belts (505) located on two corresponding support bars (502). A first linkage belt (508) is fixedly installed on two linkage shafts (507). The output shaft of the second motor (506) is coaxially and fixedly connected to one of the linkage shafts (507). The cleaning guide component is installed on the drive shaft (3), the cleaning guide component is located above the floatation lifting component and close to the liquid surface, the cleaning guide component cleans the floating matter adhering to the floatation lifting component and transports the cleaned matter to the liquid surface; The collection component is mounted on the drive shaft (3). One side of the collection component is located below the liquid surface and the other side is located above the liquid surface. The collection component collects the floating matter on the liquid surface and discharges the collected floating matter to the outside of the sedimentation tank (1).

2. The wastewater treatment device for biomass gasification process according to claim 1, characterized in that, Multiple support columns (2) are fixedly installed on the sedimentation tank (1), and support plates (201) are fixedly installed on the support columns (2). Drive boxes (202) are fixedly installed on the multiple support plates (201), and the drive shaft (3) is rotatably connected to the drive box (202).

3. The wastewater treatment device for biomass gasification process according to claim 2, characterized in that, The drive assembly includes a first motor (4) fixedly installed inside the drive housing (202), and the output shaft of the first motor (4) is coaxially and fixedly connected to the drive shaft (3).

4. The wastewater treatment device for biomass gasification process according to claim 1, characterized in that, Baffles (509) are fixedly installed on both sides of the conveyor belt (505), and lifting bars (510) are fixedly installed on the conveyor belt (505), with the lifting bars (510) located inside the baffles (509).

5. The wastewater treatment device for biomass gasification process according to claim 1, characterized in that, The cleaning guide component includes a base (6) fixedly mounted on a drive shaft (3), a first mounting rod (601) and a second mounting rod (602) fixedly mounted on the base (6). Multiple first support blocks (603) are fixedly mounted on the first mounting rod (601), and multiple second support blocks (604) are fixedly mounted on the second mounting rod (602). The multiple first support blocks (603) and multiple second support blocks (604) correspond one-to-one. Roller brushes (605) are rotatably mounted between the corresponding first support blocks (603) and second support blocks (604). The multiple roller brushes (605) correspond one-to-one with the multiple conveyor belts (505) and are located above the conveyor belts (505). Multiple bristles are installed on the brush (605). A motor base (606) is fixedly installed on one of the second support blocks (604). A third motor (607) is fixedly installed on the motor base (606). A second linkage belt (608) is fixedly installed on multiple second support blocks (604). Multiple pulleys on the second linkage belt (608) correspond one-to-one with and are fixedly connected to multiple roller brushes (605). The output shaft of the third motor (607) is coaxially fixedly connected to one of the pulleys on the second linkage belt (608). Multiple vortex devices (7) are fixedly installed on the drive shaft (3). The vortex devices (7) are installed above the roller brushes (605) and correspond one-to-one with the roller brushes (605).

6. The wastewater treatment device for biomass gasification process according to claim 1, characterized in that, The collection component includes a collection box (8) fixedly mounted on a drive shaft (3). The collection box (8) is provided with a collection trough (801) and a storage trough (802). A lifting plate (803) is slidably mounted in the storage trough (802). A push rod motor (804) is fixedly mounted on the collection box (8). The output shaft of the push rod motor (804) is fixedly connected to the lifting plate (803). A reciprocating screw (805) is rotatably mounted on the collection box (8). A push block (806) is threadedly connected to the reciprocating screw (805). A guide plate (808) is fixedly mounted on the collection box (8). The guide plate (808) extends to the outside of the sedimentation tank (1). A fourth motor (807) is fixedly mounted on the guide plate (808). The output shaft of the fourth motor (807) is coaxially fixedly connected to the reciprocating screw (805).

7. The wastewater treatment device for biomass gasification process according to claim 1, characterized in that, The sedimentation tank (1) is provided with a sludge trough (9) and a discharge pipe (901). The discharge pipe (901) is connected to the sludge discharge pipe (902). The sludge discharge pipe (902) is fixedly installed on the sedimentation tank (1). A valve (903) is installed in the sludge discharge pipe (902). A sludge guiding component is installed on the drive shaft (3). The sludge guiding component pushes the sludge at the bottom of the sedimentation tank (1) into the sludge trough (9).

8. A wastewater treatment device for biomass gasification process according to claim 7, characterized in that, The sludge guiding component includes a collection hood (10) fixedly installed on the drive shaft (3). The collection hood (10) includes a front baffle (1001) and a rear baffle (1002). A gap is provided between the front baffle (1001) and the bottom of the sedimentation tank (1). The rear baffle (1002) contacts the bottom of the sedimentation tank (1). A synchronization plate (1003) is movably installed inside the collection hood (10). Multiple sludge discharge plates (1004) are fixedly installed on the synchronization plate (1003). A support base (1005) is installed at a height on the collection hood (10). A fifth electric motor is fixedly installed on the support base (1005). The fifth motor (1006) has a drive disk (1007) rotatably mounted on the collection cover (10). The output shaft of the fifth motor (1006) is coaxially fixedly connected to the drive disk (1007). A connecting rod (1008) is rotatably mounted on the drive disk (1007). A connecting strip (1009) is rotatably mounted on the other end of the connecting rod (1008). A groove (1010) is provided on the connecting strip (1009). A slider (1011) is slidably mounted in the groove (1010). A waist-shaped hole (1012) is provided on the collection cover (10). The slider (1011) is slidably connected to the waist-shaped hole (1012).

9. A method for treating wastewater from a biomass gasification process, applied to the wastewater treatment device for a biomass gasification process as described in any one of claims 1-8, the method comprising the following steps: Step 1: Drive the drive shaft (3) to rotate via the drive assembly; Step 2: Driven by the drive shaft (3), the floating lifting component rotates inside the sedimentation tank (1). The floating lifting component captures the floating matter in the sedimentation tank and transports the floating matter to a position close to the liquid surface. Step 3: Remove the floating debris adhering to the floatation lifting component by cleaning the guide component, and transport the floating debris conveyed by the floatation lifting component to the liquid surface; Step 4: Collect the floating matter that has moved to the surface of the liquid using the collection components, and discharge the collected floating matter to the outside of the sedimentation tank (1); Step 5; The drive shaft (3) drives the sludge guiding component to rotate inside the sedimentation tank (1), and the sludge settled inside the sedimentation tank (1) is transported to the sludge tank (9) through the sludge guiding component; Step 6: Open valve (903) and discharge the sludge inside sludge tank (9) to the outside of sedimentation tank (1) under the action of water pressure inside sedimentation tank (1).

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