A fermentation treatment device and method for tylosin waste liquid

Abstract

The application discloses a fermentation treatment equipment and method for tylosin waste liquid, relates to the technical field of tylosin waste liquid treatment, and aims to solve the technical problem of low dewatering efficiency caused by the 'water film wrapping' of high-viscosity sludge. The application realizes efficient and deep dewatering of sludge through four-stage progressive dewatering modes and collaborative design. The equipment is based on the cooperation of centrifugation and extrusion, and can quickly separate free water and shallow bound water. Then, the 'corner shearing' is used to fill the dewatering blind area and ensure the uniformity of sludge dewatering in the whole area. Subsequently, the'multi-point concave-convex extrusion' is used to tear the deep water film and improve the dewatering depth. Finally, the 'needle column puncture' is used to remove the residual water film and completely reduce the water content of the sludge. The four-stage dewatering modes are seamlessly linked, and the self-adaptive sealing structure and energy collaborative design are used, so that the sludge leakage and secondary pollution are avoided, the unit treatment energy consumption is reduced, and the pain points of the traditional equipment, such as incomplete, uneven and low-efficiency dewatering, are solved.

Description

Technical Field

[0001] This invention relates to the field of tivamectin wastewater treatment technology, and more specifically, to a fermentation treatment device and method for tivamectin wastewater. Background Technology

[0002] In the fields of biopharmaceuticals and antibiotic production, tylosin, as a highly effective antibacterial drug, generates a large amount of fermentation waste liquid during its production process. This type of waste liquid has a complex composition, and after fermentation treatment, it generates fermentation sludge containing high concentrations of organic matter and residual antibiotics. Furthermore, due to the stable "water film" structure formed by colloidal particles and water in the sludge, it exhibits significant characteristics of high viscosity and high water content, becoming a core challenge in the environmental treatment process.

[0003] The harmless treatment and resource utilization of tylosin fermentation sludge is a crucial step in ensuring that antibiotic manufacturers meet emission standards and comply with environmental policies. Currently, the mainstream dewatering methods for such highly viscous sludge are centrifugal dewatering or extrusion dewatering. Their core principle is to break down the sludge structure through mechanical force, separating solid and liquid components to prepare for subsequent incineration, landfill, and other final disposal methods. However, existing treatment technologies struggle to overcome the "water film" structure of highly viscous sludge, resulting in significantly reduced dewatering efficiency. Because the water film formed by colloidal particles firmly locks in moisture, simple centrifugal force or squeezing methods are insufficient to completely break down this stable structure, resulting in a low sludge dewatering rate. The dewatered sludge remains pasty and cannot meet the basic moisture content requirements for incineration. Direct incineration not only leads to incomplete combustion and a surge in energy consumption due to excessive moisture content, but may also generate large amounts of harmful gases, causing secondary pollution. Landfill disposal, with its high moisture and organic matter content, increases the risk of soil and groundwater pollution, while wasting recoverable energy resources from the sludge. With increasingly stringent environmental regulations for industrial sludge treatment and the urgent need for cleaner production in the antibiotic industry, the limitations of existing dewatering technologies are becoming increasingly apparent, failing to meet the practical needs for efficient dewatering and harmless disposal of tylosin fermentation sludge. Therefore, we propose a fermentation treatment device and method for tylosin waste liquid. Summary of the Invention

[0004] One of the objectives of this invention is to provide a fermentation treatment device for tivacin waste liquid, so as to solve the technical problem that the dewatering efficiency of sludge produced by tivacin waste liquid fermentation is limited by the "water film encapsulation" structure of the highly viscous sludge.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a fermentation treatment device for tivacin waste liquid, including a base, an outer screen cylinder connected to the outer periphery of the base, a polygonal screen frame rotatably connected between the outer screen cylinder and the base, a plurality of pressure chambers arranged in an array on the polygonal cylindrical wall of the polygonal screen frame, and an ultrafiltration screen door movably installed on each polygonal cylindrical wall of the polygonal screen frame, a through groove is opened between two adjacent pressure chambers in the same row, an automatic valve is provided on the through groove, and a feed hopper is installed on the top of the polygonal screen frame; A gear ring is fixed at the top of the polygonal screen frame, and a transmission gear meshes with the outer circumference of the gear ring. A drive motor is connected to the center of the transmission gear. A rectangular sleeve is fixed inside the pressure chamber. A constraint sleeve is installed at one end of the rectangular sleeve near the center of the polygonal screen frame. A torque compression sleeve is provided on the inner circumference of the constraint sleeve. The outer circumference of the torque compression sleeve fits against the inner circumference of the constraint sleeve. A cavity communicating with a through groove is opened between the top and bottom of the torque compression sleeve. A pressure plate is connected to one side of the torque compression sleeve. A drive rod capable of lifting and moving is provided at the center of the polygonal screen frame.

[0006] Preferably, a hydraulic rod is rotatably connected to the bottom end of the drive rod, the hydraulic rod is installed inside the base, and a hinge rod is movably hinged between the drive rod and the pressure plate, the hinge rod being arranged at an angle.

[0007] Preferably, the rectangular sleeve has notches at multiple rectangular corners, and corner pressure members are provided at the notches. Each corner pressure member includes multiple elastic sheets made of elastic material and has a bent corner structure. Both ends of the elastic sheets are fixed to the sidewalls of the notches, and the corners of the elastic sheets have pressure-bearing indentations. A waterproof leather layer is bonded inside the rectangular sleeve, and the waterproof leather layer has redundant portions.

[0008] Preferably, the corner pressure member further includes a positioning plate, one side of which is fixed to the inner wall of the rectangular sleeve, and one side of which is provided with a corner pressure block corresponding to the position of the pressure concave point. The positioning plate and the corner pressure block are in a limited sliding relationship, and the corner pressure block is provided with a pressure inclined surface that can be squeezed by the rectangular sleeve on the side near the rectangular sleeve.

[0009] Preferably, the rectangular sleeve has at least one inner cavity opening on multiple planes, and the inner wall of the inner cavity opening is connected to a wave spring made of elastic material. The wave spring has a wave-shaped pleated structure. The inner side of the rectangular sleeve near the wave spring is also provided with a waterproof leather layer with redundant parts, and the outer side of the wave spring is provided with a needle-punched structure.

[0010] Preferably, the needle-punching structure includes an extension plate, the cross-section of which is a plate with a gradually increasing arc, a transverse plate is provided below the extension plate, a plurality of lifting plates are tenoned into the transverse plate, the top of the lifting plate is limited to sliding with one side of the extension plate, and the bottom of the lifting plate is connected to an extrusion protrusion, the extrusion protrusion corresponding to the position of the wave spring.

[0011] Preferably, the needle-punching structure further includes a straight plate, which is connected to a torque compression sleeve. A sliding groove is provided on the straight plate, and a straight connecting rod extends from the outer periphery of the transverse plate and slides inside the sliding groove.

[0012] Preferably, the sliding groove consists of a gentle extrusion section, a lateral shift section, and a tail end section. The sliding length of the straight connecting rod in the gentle extrusion section corresponds to the pressure inclined surface. The lateral shift section is arranged at an angle towards the wave spring. The tail end section is located at the end of the lateral shift section.

[0013] Preferably, the pressure plate is composed of a top shell and an inner plate that slide relative to each other, and a plurality of needles penetrating the top shell are connected to one side of the inner plate, and a plurality of springs are provided between the inner plate and the top shell.

[0014] The second objective of this invention is to provide a fermentation treatment method for tivacin waste liquid, which uses the aforementioned fermentation treatment equipment for tivacin waste liquid and includes the following steps: S1. Equipment Start-up and Material Feeding Preparation: Check the status of components such as the drain outlet of the outer screen cylinder, the ultrafiltration screen door, and the automatic valve to ensure they are in normal condition. Start the drive motor to rotate the multi-sided screen frame and evenly convey the sludge into the pressure chamber through the feed hopper connected by the rotation. S2, First-stage dehydration (centrifugation-extrusion synergy): The rotating multi-sided screen frame generates centrifugal force, initially separating free water and discharging it through the ultrafiltration screen door. The automatic valve closes to separate the independent chambers. The hydraulic rod pushes the drive rod, which drives the pressure plate and the torque sleeve to squeeze the sludge through the hinge rod. The centrifugal force and the squeezing force work together to break the water film and separate the bound water. S3, Second stage of dehydration (angle pressing shearing): The hydraulic rod continues to push the pressure plate for secondary extrusion, the torque sleeve triggers the corner pressure block to slide, the extrusion elastic sheet deforms, the elastic sheet generates shear force on the corner sludge, and together with the centrifugal force and the main extrusion force, fills the blind spots of dewatering at the corners; S. Third-stage dehydration (multi-point concave-convex extrusion): The hydraulic rod drives the pressure plate to squeeze three times, and the straight connecting rod drives the horizontal plate and the vertical plate to move. The squeezing protrusions press down on the wave spring, and the wave spring bulges to form multi-point concave and convex squeezing, tearing the deep water film, and the water is discharged with the help of centrifugal force. S5, Fourth Stage Dehydration (Deep Needle-Column Tearing): After the pressure plate moves to the end of the sliding trough, the inner plate squeezes the spring, the needle column protrudes and inserts into the sludge, the needle column tears the deep water film, separates the residual water, and the water is discharged through the ultrafiltration screen door and the overflow outlet. S6: Reset and mud removal: After shutting down the motor and hydraulic rod, each elastic structure automatically resets, the needle column retracts, the automatic valve opens, the ultrafiltration screen door is unlocked, the sludge cake is removed, and the equipment is cleaned.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention utilizes the centrifugal force generated by the high-speed rotation of a multi-sided screen frame to rapidly separate free water from sludge, initially breaking the outer "water film" structure. Subsequently, an automatic valve closes to form an independent chamber. A hydraulic rod drives a pressure plate and a pressure sleeve to work together to squeeze the sludge. The squeezing force acts precisely on the sludge from the inside out, further breaking the surface water film of colloidal particles and separating shallow bound water. Centrifugal force and squeezing force work together throughout the process. Centrifugal force accelerates the discharge of separated water, while squeezing force ensures the water film breaking effect. The two complement each other. Compared with traditional single centrifugation or squeezing technology, the dewatering efficiency is significantly improved, rapidly reducing the initial moisture content of sludge and greatly increasing the dewatering rate. This reduces the sludge moisture content to the level required for incineration disposal, solving the problem that the "water film" structure of highly viscous sludge produced by the fermentation of tylosin wastewater limits the dewatering efficiency.

[0016] 2. This invention also achieves precise shearing and dewatering at the edges and corners through corner pressing components. During the secondary extrusion of the torque compression sleeve, the corner pressing block is triggered to slide, pushing the elastic sheet to contract and deform towards the edges and corners, generating an additional "clamping-shearing" force on the sludge at the edges and corners, directly tearing the residual water film. This design ensures that the dewatering effect covers the entire sludge area, the main extrusion force ensures sufficient dewatering in the middle area, and the corner shearing force fills the blind spots. Combined with continuous centrifugal force to accelerate the discharge of water, it avoids the situation of excessively high local water content in the sludge, and finally achieves uniform overall dewatering of the sludge. After dewatering, the sludge has no mushy dead corners, meeting the requirements of subsequent treatment for the consistency of sludge water content, and solving the technical problem of uneven dewatering in traditional equipment.

[0017] 3. This invention also achieves efficient removal of deep water films in sludge through the linkage of wave springs and needle-punched structures. The straight connecting rod drives the lifting plate to slide along the arc-shaped connecting plate, and the arc-guided force makes the extrusion protrusions precisely press down on the wave springs, forming a "multi-point dispersed concave-convex extrusion". The protruding parts generate local concentrated pressure, breaking through the tension of the deep water film, and the concave parts form a negative pressure zone to accelerate water-liquid separation. The shearing force generated by this concave-convex structure can penetrate deep into the sludge and destroy the stable water film structure between colloidal particles. Compared with the limitation of traditional planar extrusion, which only acts on the surface of sludge, this design greatly improves the dewatering depth, separates more deep bound water, further reduces the water content of sludge, and solves the core pain point of the difficulty in removing deep water films in high-viscosity sludge.

[0018] 4. In this invention, when the pressure plate moves to the restricted position at the end of the sliding trough, the top shell compresses the spring, causing the needle column to protrude and insert into the sludge. The needle column directly acts on the residual micro water film structure, physically piercing and tearing the colloidal particles and the final binding of water, separating the residual bound water. At the same time, the rubber layer on the outer surface of the pressure plate and the needle column enhances the seal, preventing water backflow and ensuring that the separated water is discharged quickly. This design, as the final process of deep dewatering, can thoroughly remove the water film remaining after the previous dewatering, reducing the sludge moisture content to an extremely low level, meeting the strict requirements of terminal disposal such as incineration and landfill, and solving the problem of incomplete dewatering and sludge remaining pasty in traditional equipment.

[0019] 5. This invention employs four progressively integrated dewatering stages, seamlessly connecting each other to gradually break down the outer water film and the deep residual water film, forming a complete dewatering system. No additional downtime or adjustments are required, significantly improving processing efficiency. Simultaneously, the equipment features a redundant waterproof layer and a rubber-reinforced sealing structure, which adaptively adjusts to structural deformation during each dewatering stage, preventing sludge leakage and pressure loss, reducing secondary pollution. Each elastic structure can self-reset, and sliding parts are precisely positioned, enhancing long-term operational stability. Furthermore, all stages utilize a "centrifugal + extrusion" energy synergy mode, reducing energy consumption per unit of sludge. Energy consumption for subsequent sludge disposal after dewatering is also reduced, aligning with low-carbon and environmentally friendly requirements. While suitable for treating highly viscous sludge, it also possesses broad application scalability. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a schematic diagram of the structure of the partially split outer sieve cylinder in this invention; Figure 3 This is a schematic diagram of the polygonal sieve frame and rectangular sleeve in this invention; Figure 4 This is a schematic diagram of the structure of a single polygonal sieve frame in this invention; Figure 5 This is a schematic diagram of the connection structure of a single rectangular sleeve in the first extrusion state in this invention; Figure 6 In this invention Figure 5 A schematic diagram of a half-section structure; Figure 7 This is a schematic diagram of the separation structure of the rectangular sleeve, the rectangular compression sleeve, and the pressure plate in this invention; Figure 8 For the present invention Figure 7 Enlarged view of the structure at point A in the middle; Figure 9 This is a schematic diagram of the rectangular compression sleeve in this invention; Figure 10 This is a schematic diagram of the overall structure when a single rectangular sleeve is compressed into a second shape in this invention; Figure 11 This is a schematic diagram of the structure between the rectangular sleeve and the corner pressure member when the device is extruded into the second form in this invention. Figure 12 This is a schematic diagram of the arrangement of the needle-punching structure in this invention; Figure 13 This is a schematic diagram of the needle-punching structure in this invention; Figure 14 This is a schematic diagram of the inverted structure of the needle-punching structure in this invention; Figure 15 This is a schematic diagram of the connection structure of the pressure plate in this invention; Figure 16 This is a schematic diagram of a half-section of the pressure plate in this invention.

[0021] Explanation of the labels in the diagram: 1. Base; 2. Outer screen cylinder; 3. Polygonal screen frame; 4. Throwing pressure chamber; 5. Automatic valve; 6. Feed hopper; 7. Gear ring; 8. Transmission gear; 9. Drive motor; 10. Rectangular sleeve; 11. Constraint sleeve; 12. Torque compression sleeve; 13. Cavity; 14. Pressure plate; 15. Drive rod; 16. Hinge rod; 17. Corner pressure piece; 18. Corrugated spring; 19. Needle-punched structure; 81. Ultrafiltration screen door; 141. Top shell; 142. Inner plate; 143. Pin column; 144. Spring; 171. Elastic sheet; 172. Pressure concave point; 173. Waterproof skin layer; 174. Positioning plate; 175. Corner pressure block; 176. Pressure inclined surface; 191. Extension plate; 192. Transverse plate; 193. Lifting plate; 194. Extrusion protrusion; 195. Straight plate; 196. Sliding groove; 1961. Gentle extrusion section; 1962. Lateral shift section; 1963. Tail end section; 197. Straight connecting rod. Detailed Implementation

[0022] like Figures 1 to 16 As shown, the present invention relates to a fermentation treatment device for tylosin waste liquid, including a base 1, an outer screen cylinder 2 connected to the outer periphery of the base 1, a drain outlet connected to the bottom of the outer screen cylinder 2, a polygonal screen frame 3 rotatably connected between the outer screen cylinder 2 and the base 1, a plurality of arrayed pressure chambers 4 are opened on the polygonal cylindrical wall of the polygonal screen frame 3, a through groove is opened between two adjacent pressure chambers 4 in the same row, and an ultrafiltration screen door 81 is movably installed on each of the polygonal cylindrical walls of the polygonal screen frame 3. The ultrafiltration screen door 81 can be rotatably connected by a hinge and a locking buckle. An automatic valve 5 is provided on the through groove. The automatic valve 5 can be any valve such as an electromagnetic drive. A feed hopper 6 is installed on the top of the polygonal screen frame 3. The feed inlet of the feed hopper 6 is rotatably connected so that its rotation does not affect the feeding process. A gear ring 7 is fixed at the top of the polygonal screen frame 3. A transmission gear 8 meshes with the outer circumference of the gear ring 7. A drive motor 9 is connected to the center of the transmission gear 8. A rectangular sleeve 10 is fixed inside the pressure chamber 4. A constraint sleeve 11 is installed at one end of the rectangular sleeve 10 near the center of the polygonal screen frame 3. A torque compression sleeve 12 is provided on the inner circumference of the constraint sleeve 11. The outer circumference of the torque compression sleeve 12 fits against the inner circumference of the constraint sleeve 11. The size of the automatic valve 5 is adapted to the gap between two adjacent torque compression sleeves 12 so that after the automatic valve 5 is closed, multiple pressure chambers 4 can generate independent closed spaces so that they will not affect each other. A cavity 13 communicating with the through groove is opened between the top and bottom of the torque compression sleeve 12. A pressure plate 14 is connected to one side of the torque compression sleeve 12. A drive rod 15 that can be raised and lowered is provided at the center of the polygonal screen frame 3. A hydraulic rod is rotatably connected to the bottom end of the drive rod 15. The hydraulic rod is installed inside the base 1. A hinge rod 16 is movably hinged between the drive rod 15 and the pressure plate 14. The hinge rod 16 is arranged at an inclination.

[0023] Working principle: Start the drive motor 9, which meshes with the gear ring 7 through the transmission gear 8, driving the polygonal screen frame 3 to rotate stably between the outer screen cylinder 2 and the base 1. Due to the rotating connection design, the feed inlet of the feed hopper 6 can continuously feed tylosin fermentation sludge to multiple pressure chambers 4 while the polygonal screen frame 3 is rotating, without affecting the rotation of the equipment. At this time, the automatic valve 5 between the channels is open, and the pressure chambers 4 in the same row are interconnected through the channels, providing a channel for the flow of liquid in the pre-dewatering stage. The ultrafiltration screen door 81 on the outer periphery of the pressure chamber 4 remains closed to prevent sludge leakage while reserving a dewatering channel.

[0024] When the polygonal screen frame 3 rotates at high speed, it generates centrifugal force. Under the action of centrifugal force, the fermented sludge in the pressure chamber 4 moves outward. The free water in the sludge is initially separated. The separated water passes through the gap between the rectangular sleeve 10 and the pressure sleeve 12, flows through the channel in the pressure chamber 4, and is finally discharged to the outer screen cylinder 2 through the filter holes of the ultrafiltration screen door 81, completing the pre-dehydration process.

[0025] After pre-dehydration is completed, the automatic valve 5 is activated and then closed (electromagnetic drive control). Since the size of the automatic valve 5 is adapted to the gap between the adjacent pressure sleeve 12, after closing, it can separate the multiple pressure chambers 4 in the same row into independent closed spaces. Each chamber does not interfere with the others, ensuring that the pressure is concentrated on the sludge in a single chamber during subsequent extrusion dehydration, and avoiding pressure dispersion that affects the dehydration effect.

[0026] After pre-dehydration is completed, the first stage of dehydration is initiated. The hydraulic rod inside the base 1 is activated, and the hydraulic rod pushes the drive rod 15 to move up and down along the center of the polygonal screen frame 3. The drive rod 15 drives the pressure plate 14 to move towards the inside of the pressure chamber 4 through the inclined hinge rod 16. The pressure plate 14 and the rectangular pressure sleeve 12 simultaneously squeeze into the rectangular sleeve 10. At this time, the polygonal screen frame 3 remains in a rotating state, and the centrifugal force and the extrusion force work together: the extrusion force pushes the sludge from the inside to the outside, further breaking the "water film" structure of the colloidal particles and separating the bound water; the centrifugal force accelerates the separated water to move outward and is quickly discharged through the ultrafiltration screen door 81.

[0027] Furthermore, in order to further improve the dewatering effect, extrusion pressure is applied to the corners of the sludge squeezed into the first form, generating additional shear force inside, destroying the internal water film structure, and increasing the dewatering effect of the sludge. The specific structure is as follows.

[0028] The rectangular sleeve 10 has notches at multiple rectangular corners, and corner pressure members 17 are provided at the notches. The corner pressure members 17 include multiple elastic pieces 171. The elastic pieces 171 are made of elastic material and have a bent corner structure. The two ends of the elastic pieces 171 are fixed to the side wall of the notch. The corner of the elastic piece 171 has a pressure-bearing indentation 172. A waterproof leather layer 173 is bonded inside the rectangular sleeve 10. The waterproof leather layer 173 has a redundant part.

[0029] The corner pressure member 17 also includes a positioning plate 174. One side of the positioning plate 174 is fixed to the inner wall of the rectangular sleeve 10. One side of the positioning plate 174 is provided with a corner pressure block 175 corresponding to the position of the pressure recess 172. The positioning plate 174 and the corner pressure block 175 are in a limited sliding relationship. The corner pressure block 175 is provided with a pressure inclined surface 176 that can be squeezed by the rectangular sleeve 12 on the side near the rectangular sleeve 12.

[0030] Working principle: Based on the centrifugal-extrusion synergistic pre-dehydration, the hydraulic rod inside the base 1 is started to run again. The hydraulic rod pushes the drive rod 15 to rise and fall further along the center of the polygonal screen frame 3. Through the inclined hinge rod 16, the pressure plate 14 is driven to squeeze the inner side of the pressure chamber 4 for a second time. At this time, the polygonal screen frame 3 remains in a rotating state, continuously providing centrifugal force, while the rectangular pressure sleeve 12 moves synchronously with the pressure plate 14 into the rectangular sleeve 10, gradually approaching the corner pressure block 175 of the corner pressure member 17.

[0031] As the compression sleeve 12 continues to move, its end first contacts the pressure-bearing inclined surface 176 of the corner pressure block 175 (the corner pressure block 175 is limited and slidably connected to the positioning plate 174). The extrusion force of the compression sleeve 12 is decomposed into a lateral component along the pressure-bearing inclined surface 176, pushing the corner pressure block 175 to slide along the positioning plate 174 towards the corner notch of the rectangular sleeve 10. Since the corner pressure block 175 corresponds to the pressure-bearing concave point 172 of the elastic sheet 171, the sliding corner pressure block 175 precisely squeezes the pressure-bearing concave point 172 of the elastic sheet 171, causing the elastic sheet 171 (bent corner structure, elastic material) to deform.

[0032] The elastic sheet 171 is fixed at both ends to the side wall of the notch. After being squeezed by the corner pressure block 175, the bent corner structure shrinks and deforms towards the inside of the corner of the rectangular sleeve 10, generating an additional "clamping-shearing" force on the sludge in the corner area. The shearing force generated by the deformation of the elastic sheet 171 can tear the stable structure between the colloidal particles, separate the bound water, and form a corner dewatering effect that is complementary to the main extrusion direction.

[0033] During this process, the centrifugal force of the rotating multi-sided screen frame 3 continues to act, causing the water separated by shearing to move rapidly to the outside; the main extrusion direction (pushed by the pressure plate 14) still maintains positive pressure on the sludge, ensuring that the sludge in the middle area is fully dewatered; the corner shearing force fills the corner dewatering blind area, and the three work together to form the second form of dewatering mode of "positive extrusion + corner shearing + centrifugal separation".

[0034] Furthermore, in order to further enhance the dehydration rate.

[0035] The rectangular sleeve 10 has at least one inner cavity opening on multiple planes. The inner wall of the inner cavity opening is connected to a wave spring sheet 18 made of elastic material. The wave spring sheet 18 has a wave-shaped pleated structure. The inner side of the rectangular sleeve 10 near the wave spring sheet 18 is also provided with a waterproof leather layer 173 with redundant parts. The outer side of the wave spring sheet 18 is provided with a needle-punched structure 19.

[0036] The needle-punched structure 19 includes an extension plate 191, the cross section of which is a plate with a gradually increasing curvature. A transverse plate 192 is provided below the extension plate 191. Multiple lifting plates 193 are tenoned into the transverse plate 192. The top of the lifting plate 193 is limited and slidable with one side of the extension plate 191. The bottom of the lifting plate 193 is connected to a pressing protrusion 194, which corresponds to the position of the wave spring 18.

[0037] The needle-punching structure 19 also includes a straight plate 195, which is connected to the torque compression sleeve 12. A sliding groove 196 is provided on the straight plate 195, and a straight connecting rod 197 that slides inside the sliding groove 196 extends from the outer periphery of the transverse plate 192.

[0038] The sliding groove 196 consists of a gentle extrusion section 1961, a side-shifting section 1962, and a tail section 1963. The sliding length of the straight connecting rod 197 in the gentle extrusion section 1961 corresponds to the pressure inclined surface 176. The side-shifting section 1962 is arranged at an inclination towards the wave spring 18. The tail section 1963 is at the end of the side-shifting section 1962.

[0039] Working principle: Based on the assisted shearing and dewatering of the angle pressure component 17 (second form), the hydraulic rod continues to push the drive rod 15 up and down, and through the hinge rod 16, it drives the pressure plate 14 and the rectangular pressure sleeve 12 to squeeze into the rectangular sleeve 10 for the third time. The straight plate 195 fixed with the rectangular pressure sleeve 12 moves synchronously. The straight connecting rod 197 on the straight plate 195 slides from the gentle extrusion section 1961 into the side shift section 1962 along the sliding groove 196 (the side shift section 1962 is inclined towards the wave spring 18). At this time, the polygonal screen frame 3 continues to rotate, and the centrifugal force continues to provide power for water-liquid separation. The waterproof skin layer 173 (with redundant part) adapts to the deformation of the rectangular sleeve 10 to avoid sealing failure.

[0040] When the straight connecting rod 197 slides along the side-shifting section 1962, its lateral force drives the transverse plate 192 (fixed with the straight connecting rod 197) to move synchronously in the direction of the wave spring 18. The transverse plate 192 is tenon-fitted with the lifting plate 193, and the top of the lifting plate 193 slides in a limited position with the extension plate 191 (a plate with gradually increasing cross-sectional curvature). Therefore, when the transverse plate 192 moves, it simultaneously pulls multiple lifting plates 193 to slide laterally along the bottom surface of the extension plate 191, accumulating force for the subsequent "downward pressing" action.

[0041] As the lifting plate 193 slides along the connecting plate 191, the structure of the connecting plate 191 with its "gradually increasing curvature" generates a downward guiding force on the lifting plate 193. When the top of the lifting plate 193 slides along the arc surface of the connecting plate 191, the bottom gradually descends towards the wave spring 18. The pressing protrusion 194 at the bottom of the lifting plate 193 (corresponding to the position of the wave spring 18) moves down synchronously, and finally precisely presses the wave spring 18 at the inner cavity of the rectangular sleeve 10.

[0042] After the wave-shaped spring sheet 18 is pressed down by the compression protrusion 194, the wave-shaped wrinkled structure bulges inward towards the rectangular sleeve 10, forming a "multi-point dispersed concave-convex compression" on the sludge in the cavity. The protruding part generates local concentrated pressure on the sludge, while the concave part forms a negative pressure zone, which promotes the flow of water inside the sludge to the concave area. This concave-convex compression pattern can generate tearing force on the deep "water film wrapping" structure of the sludge: the pressure at the protrusion breaks through the water film tension between colloidal particles, and the negative pressure at the concave part accelerates the separation of water and liquid. At the same time, the shearing force formed by multi-point compression further destroys the integrity of the water film, enabling the bound water to be separated efficiently. The separated water moves rapidly to the outside under the action of centrifugal force and is discharged through the ultrafiltration screen door 81.

[0043] In a further design, the pressure plate 14 is composed of a top shell 141 and an inner plate 142 that slide relative to each other. A plurality of needles 143 that penetrate the top shell 141 are connected to one side of the inner plate 142. A plurality of springs 144 are provided between the inner plate 142 and the top shell 141.

[0044] The elastic force of the multiple springs 144 here is greater than the resistance force generated during the push. When the pressure plate 14 moves to the tail section 1963 and moves again, it can squeeze the multiple springs 144 due to the movement limit of the tail section 1963, causing the needle column 143 to bulge out and tear the water film structure inside the sludge again, thus enhancing the dewatering effect.

[0045] The outer surfaces of the pressure plate 14 and needle column 143 can be reinforced with rubber for sealing, and the bottom of the polygonal screen frame 3 is provided with an overflow port.

[0046] This embodiment also uses the aforementioned fermentation treatment equipment for tivacin waste liquid to ferment the tivacin waste liquid. The specific treatment process is as follows: I. Equipment Start-up and Preliminary Preparations: 1. Check the status of each component of the equipment: confirm that the drain outlet at the bottom of the outer screen cylinder 2 is unobstructed, the ultrafiltration screen door 81 is closed in place by the hinge and the latch, the automatic valve 5 is in the initial open state, the pressure plate 14, the torque sleeve 12 and other structures are reset to the initial position, and the waterproof skin 173 (with redundant part) is undamaged.

[0047] 2. Start the drive motor 9: The drive motor 9 meshes with the gear ring 7 at the top of the polygonal screen frame 3 through the transmission gear 8, driving the polygonal screen frame 3 to rotate stably between the outer screen cylinder 2 and the base 1, and adjusting the rotation speed to the preset value suitable for centrifugal pre-dehydration.

[0048] 3. Feeding preparation: The sludge fermented with tylosin is conveyed to the feed hopper 6. Since the feed inlet of the feed hopper 6 is a rotating connection, the sludge can be evenly conveyed to multiple pressure chambers 4 while the multi-sided screen frame 3 is continuously rotating, thus avoiding the impact of equipment rotation on the continuity of feeding.

[0049] II. First-stage dehydration – centrifugation-extrusion synergistic pre-dehydration: 1. Centrifugal pre-dewatering: The high-speed rotation of the polygonal screen frame 3 generates centrifugal force, and the fermented sludge in the pressure chamber 4 moves outward under the action of centrifugal force, and the free water in the sludge is initially separated. The separated water flows through the gap between the rectangular sleeve 10 and the pressure sleeve 12, flows through the through groove between the pressure chambers 4 in the same row, and is finally discharged through the filter holes of the ultrafiltration screen door 81 to the outer screen cylinder 2, and then discharged from the drain port at the bottom of the outer screen cylinder 2, completing the pre-dewatering and initially breaking the "water film" structure of the sludge.

[0050] 2. Extrusion-enhanced dewatering: Automatic valve 5 is closed: After pre-dewatering is completed, the electromagnetically driven automatic valve 5 is activated. Because its size is adapted to the gap between the adjacent pressure sleeve 12, after closing, it separates the pressure chamber 4 in the same row into an independent closed space to avoid pressure dispersion during subsequent extrusion; Hydraulic extrusion: The hydraulic rod inside the base 1 is activated. The hydraulic rod pushes the central drive rod 15 up and down. The drive rod 15 drives the pressure plate 14 to move towards the inside of the pressure chamber 4 through the inclined hinge rod 16. The pressure plate 14, together with the pressure sleeve 12, extrudes into the rectangular sleeve 10 along the constraint sleeve 11; Centrifugal-extrusion synergy: The polygonal screen frame 3 continues to rotate. The extrusion force pushes the sludge from the inside to the outside, further breaking the colloidal water film and separating the bound water; The centrifugal force accelerates the water to move to the outside and is discharged through the ultrafiltration screen door 81, completing the first stage of dewatering and significantly reducing the water content of the sludge.

[0051] III. Second-stage dehydration – corner-pressed assisted shearing dehydration: 1. Secondary hydraulic extrusion: Based on the first stage of dehydration, the hydraulic rod is controlled to continue pushing the drive rod 15, which drives the pressure plate 14 and the rectangular pressure sleeve 12 to perform secondary extrusion into the rectangular sleeve 10 through the hinge rod 16. The polygonal screen frame 3 maintains rotation to provide continuous centrifugal force.

[0052] 2. Corner pressure block triggers shearing: During the movement of the rectangular pressure sleeve 12, the end contacts the pressure slope 176 of the corner pressure block 175, and the extrusion force is decomposed into a lateral component force, which pushes the corner pressure block 175 to slide along the positioning plate 174 toward the corner notch of the rectangular sleeve 10, and precisely extrudes the pressure concave point 172 of the elastic sheet 171.

[0053] 3. Corner shearing dewatering: After being squeezed, the elastic sheet 171 (bent corner elastic structure) shrinks and deforms towards the inside of the corner, generating a "clamping-shearing" force on the corner sludge, tearing the residual water film; centrifugal force accelerates the discharge of the sheared and separated water, and the main extrusion force ensures that the middle area is fully dewatered. The three work together to complete the second stage of dewatering and fill the corner dewatering blind spot.

[0054] IV. Third-stage dehydration – wave-shaped spring sheet – needle-punched structure multi-point concave-convex compression dehydration: 1. Three-stage hydraulic extrusion: After the second dehydration, the hydraulic rod continues to push the drive rod 15, and the pressure plate 14 and the rectangular sleeve 12 move to the inside of the rectangular sleeve 10 for the third time. The straight plate 195 fixed with the rectangular sleeve 12 moves synchronously, and the straight connecting rod 197 slides from the gentle extrusion section 1961 into the side shift section 1962 along the sliding groove 196.

[0055] 2. The lifting plate moves downward: The straight connecting rod 197 drives the transverse plate 192 to move towards the wave spring 18. The transverse plate 192 pulls the lifting plate 193 to slide along the extension plate 191 (the cross-sectional curvature gradually increases). The arc structure of the extension plate 191 causes the lifting plate 193 to generate a downward component force, and the pressing protrusion 194 moves downward synchronously.

[0056] 3. Multi-point concave-convex extrusion: The extrusion protrusions 194 and the wave-shaped elastic piece 18 (wave-shaped pleated structure) are extruded to the inside of the rectangular sleeve 10, forming a "multi-point dispersed concave-convex extrusion" - the protrusion breaks the water film tension, and the concave part forms a negative pressure to accelerate the separation of water and liquid. Combined with centrifugal force, the water is discharged to complete the third stage of dehydration and enhance the deep water film separation effect.

[0057] V. Fourth Stage Dehydration – Deep Water Film Tearing Dehydration in Needles and Columns: 1. Pressure plate limiting trigger pin: When the pressure plate 14 moves with the torque sleeve 12 to the tail end section 1963 of the sliding groove 196, it is limited by the tail end section 1963 and cannot continue to move laterally. The hydraulic rod continues to apply force to make the top shell 141 of the pressure plate 14 squeeze the inner plate 142 and the spring 144 (the elastic force of the spring 144 is greater than the previous pressure, so it is compressed at this time).

[0058] 2. Needle column protrusion tears the water film: The inner plate 142 drives multiple needle columns 143 to protrude through the top shell 141 and insert into the sludge, generating a direct tearing force on the deep water film structure; at the same time, the rubber-reinforced seal on the outer surface of the pressure plate 14 prevents water backflow, and the separated water is discharged through the ultrafiltration screen door 81 and the bottom overflow port of the polygonal screen frame 3, completing the final dewatering.

[0059] VI. Equipment Reset and Sludge Removal: 1. Structure reset: When the hydraulic rod and drive motor 9 are closed, the hydraulic rod drives the drive rod 15 to move in the opposite direction, and the pressure plate 14 and the torque sleeve 12 are reset under the traction of the hinge rod 16; the spring 144 elastically recovers, and the needle column 143 retracts into the top shell 141; the automatic valve 5 reopens, and the elastic structure such as the corner pressure block 175 and the wave spring 18 resets autonomously.

[0060] 2. Discharge sludge cake: Unlock the latch of the ultrafiltration screen door 81, open the ultrafiltration screen door 81, remove the dewatered sludge cake from the pressure chamber 4, clean the residual sludge inside the equipment, and complete the single tivacin waste liquid fermentation sludge treatment process. The above steps can be repeated for continuous treatment.

[0061] The embodiments disclosed in this invention are preferred embodiments, but are not limited thereto. Those skilled in the art can easily understand the spirit of this invention based on the above embodiments and make different extensions and variations, but as long as they do not depart from the spirit of this invention, they are all within the protection scope of this invention.

Claims

1. A fermentation treatment device for tylosin waste liquid, characterized in that, Includes a base (1), an outer screen cylinder (2) is connected to the outer periphery of the base (1), a polygonal screen frame (3) is rotatably connected between the outer screen cylinder (2) and the base (1), a plurality of pressure chambers (4) are provided on the polygonal cylindrical wall of the polygonal screen frame (3) in an array, and an ultrafiltration screen door (81) is movably installed on each of the polygonal cylindrical walls of the polygonal screen frame (3), a through groove is provided between two adjacent pressure chambers (4) in the same row, an automatic valve (5) is provided on the through groove, and a feed hopper (6) is installed on the top of the polygonal screen frame (3); The top of the polygonal screen frame (3) is fixed with a gear ring (7), and a transmission gear (8) meshes with the outer periphery of the gear ring (7). A drive motor (9) is connected to the center of the transmission gear (8). A rectangular sleeve (10) is fixed inside the pressure chamber (4). A constraint sleeve (11) is installed at one end of the rectangular sleeve (10) near the center of the polygonal screen frame (3). A torque compression sleeve (12) is provided on the inner periphery of the constraint sleeve (11). The outer periphery of the torque compression sleeve (12) fits against the inner periphery of the constraint sleeve (11). A cavity (13) communicating with the through groove is opened between the top and bottom of the torque compression sleeve (12). A pressure plate (14) is connected to one side of the torque compression sleeve (12). A drive rod (15) that can be raised and lowered is provided at the center of the polygonal screen frame (3).

2. The fermentation treatment equipment for tylosin waste liquid according to claim 1, characterized in that, The bottom end of the drive rod (15) is rotatably connected to a hydraulic rod, which is installed inside the base (1). The drive rod (15) and the pressure plate (14) are movably hinged to a hinge rod (16), which is arranged at an angle.

3. The fermentation treatment equipment for tylosin waste liquid according to claim 2, characterized in that, The rectangular sleeve (10) has notches at multiple rectangular corners, and corner pressure members (17) are provided at the notches. The corner pressure members (17) include multiple elastic pieces (171). The elastic pieces (171) are made of elastic material and have a bent corner structure. The two ends of the elastic pieces (171) are fixed to the sidewalls of the notches. The corners of the elastic pieces (171) have pressure indentations (172). A waterproof leather layer (173) is bonded inside the rectangular sleeve (10). The waterproof leather layer (173) has a redundant portion.

4. The fermentation treatment equipment for tylosin waste liquid according to claim 3, characterized in that, The corner pressure member (17) also includes a positioning plate (174). One side of the positioning plate (174) is fixed to the inner wall of the rectangular sleeve (10). One side of the positioning plate (174) is provided with a corner pressure block (175) corresponding to the position of the pressure concave point (172). The positioning plate (174) and the corner pressure block (175) are limited to sliding. The corner pressure block (175) is provided with a pressure inclined surface (176) that can be squeezed by the rectangular sleeve (12) on the side near the rectangular sleeve (12).

5. A fermentation treatment device for tylosin waste liquid according to claim 2 or 4, characterized in that, The rectangular sleeve (10) has at least one inner cavity opening on multiple planes. The inner wall of the inner cavity opening is connected to a wave spring sheet (18) made of elastic material. The wave spring sheet (18) has a wave-shaped pleated structure. The inner side of the rectangular sleeve (10) near the wave spring sheet (18) is also provided with a waterproof skin layer (173) with redundant parts. The outer side of the wave spring sheet (18) is provided with a needle-punched structure (19).

6. The fermentation treatment equipment for tylosin waste liquid according to claim 5, characterized in that, The needle-punched structure (19) includes an extension plate (191), the cross section of which is a plate with a gradually increasing arc. A transverse plate (192) is provided below the extension plate (191), and multiple lifting plates (193) are tenoned into the transverse plate (192). The top of the lifting plate (193) is limited to sliding with one side of the extension plate (191). The bottom of the lifting plate (193) is connected to a pressing protrusion (194), and the pressing protrusion (194) corresponds to the position of the wave spring (18).

7. The fermentation treatment equipment for tylosin waste liquid according to claim 6, characterized in that, The needle-punching structure (19) also includes a straight plate (195), which is connected to the torque compression sleeve (12). A sliding groove (196) is provided on the straight plate (195), and a straight connecting rod (197) that slides inside the sliding groove (196) extends from the outer periphery of the transverse plate (192).

8. The fermentation treatment equipment for tylosin waste liquid according to claim 7, characterized in that, The sliding groove (196) consists of a gentle extrusion section (1961), a side-shifting section (1962), and a tail section (1963). The sliding length of the straight connecting rod (197) in the gentle extrusion section (1961) corresponds to the pressure inclined surface (176). The side-shifting section (1962) is inclined towards the wave spring (18). The tail section (1963) is at the end of the side-shifting section (1962).

9. The fermentation treatment equipment for tylosin waste liquid according to claim 8, characterized in that, The pressure plate (14) is composed of a top shell (141) and an inner plate (142) that slide relative to each other. A plurality of needles (143) penetrating the top shell (141) are connected to one side of the inner plate (142). A plurality of springs (144) are provided between the inner plate (142) and the top shell (141).

10. A fermentation treatment method for tylosin waste liquid, characterized in that, The treatment of tylosin waste liquid using the fermentation treatment equipment described in claim 9 includes the following steps: S1. Equipment Start-up and Material Feeding Preparation: Check the status of the drain outlet of the outer screen cylinder, the ultrafiltration screen door, and the automatic valve components to ensure they are normal. Start the drive motor (9) to drive the multi-sided screen frame (3) to rotate and uniformly convey sludge to the throwing chamber (4) through the feed hopper (6) connected by the rotation. S2, First stage of dehydration: The multi-sided screen frame (3) rotates to generate centrifugal force, initially separating free water and discharging it through the ultrafiltration screen door (81). The automatic valve (5) is closed to separate the independent chambers. The hydraulic rod pushes the drive rod (15), which drives the pressure plate (14) and the pressure sleeve (12) to squeeze the sludge through the hinge rod (16). The centrifugal force and the squeezing force work together to break the water film and separate the bound water. S3, Second Form of Dehydration: The hydraulic rod continues to push the pressure plate (14) for secondary extrusion. The torque sleeve (12) triggers the corner pressure block (175) to slide, extruding the elastic sheet (171) to deform. The elastic sheet (171) generates shear force on the corner sludge, which, together with the centrifugal force and the main extrusion force, fills the corner dewatering blind area. S4, Third Form of Dehydration: The hydraulic rod drives the pressure plate (14) to squeeze three times, and the straight connecting rod (197) drives the transverse plate (192) and the lifting plate (193) to move. The squeezing protrusion (194) presses down the wave spring (18). The wave spring (18) bulges to form a multi-point concave-convex squeezing, tearing the deep water film, and cooperating with centrifugal force to discharge the water. S5, Fourth Form of Dehydration: After the pressure plate (14) moves to the end section (1963) of the sliding trough, the inner plate (142) squeezes the spring (144), the needle column (143) protrudes and inserts into the sludge, the needle column (143) tears the deep water film, separates the residual water, and the water is discharged through the ultrafiltration screen door (81) and the overflow outlet. S6: Reset and mud removal: The motor and hydraulic rod are turned off, each elastic structure resets automatically, the needle column (143) retracts, the automatic valve (5) opens, the ultrafiltration screen door (81) is unlocked, the sludge cake is removed and the equipment is cleaned.

Images