Solid-liquid separation apparatus

Abstract

The application discloses a kind of solid-liquid separation equipment, including liquid storage container, pneumatic assist mechanism and filter unloading mechanism, pneumatic assist mechanism is equipped with the annular air cavity being closely connected with the lower side of liquid storage container, multiple gas blowing pipes being connected with annular air cavity and pull bag piece being connected with annular air cavity;Filter unloading mechanism is equipped with container assembly, drive mechanism being connected with container assembly and filter bag being placed in container assembly and being connected with pull bag piece, drive mechanism can drive container assembly to overturn, to make container assembly and annular air cavity seal and close connection, multiple gas blowing pipes are all inserted in filter bag and blow gas obliquely downward towards filter bag and blow gas obliquely upward behind filter bag;Or make container assembly and annular air cavity separate, filter bag moves out of container assembly, solid filter material falls into material receiving container.The solid-liquid separation equipment can realize fast solid-liquid separation and loose sedimented solid filter material, improve filtration efficiency and separation effect, and also can realize efficient and clean automatic unloading.

Description

Technical Field

[0001] This invention relates to the field of solid-liquid separation technology, and in particular to a solid-liquid separation device with high filtration efficiency, good separation effect, and efficient and clean unloading. Background Technology

[0002] In chemical, pharmaceutical, and food processing industries, solid-liquid separation is a crucial process. Current technologies typically employ bag filters. However, existing bag filters often face several technical bottlenecks in practical applications, such as: ① As filtration progresses, solid materials tend to accumulate on the filter bag surface, forming a dense "filter cake." This not only increases filtration resistance, leading to decreased filtration efficiency and suboptimal solid-liquid separation, but also, due to the stickiness and moisture content of the "filter cake," easily clogs the filter bag's mesh. ② In the unloading stage, current technologies often rely on gravity for natural detachment or simple mechanical vibration. However, for highly viscous or finely granulated solid materials, gravity or simple mechanical vibration alone is insufficient for complete unloading. This not only wastes material but also increases the labor intensity and time cost of cleaning the filter bags, severely impacting production efficiency.

[0003] In view of this, the present invention is hereby proposed. Summary of the Invention

[0004] To overcome the above-mentioned defects, the present invention provides a solid-liquid separation device with a reasonable and simple structural design and stable operation. It can not only achieve rapid solid-liquid separation and loosen the deposited solid filter material, significantly improving filtration efficiency and separation effect, but also achieve efficient and clean automatic unloading, which well meets production needs.

[0005] The technical solution adopted by the present invention to solve its technical problem is: a solid-liquid separation device, comprising a liquid storage container, a pneumatic discharge mechanism, a filter feeding mechanism and a receiving container arranged sequentially from top to bottom; The liquid storage container is a hollow structure that is closed on the top and open on the bottom, and the liquid storage container is connected to an external slurry supply device. The pneumatic auxiliary discharge mechanism is provided with an annular air chamber connected to an external air supply source and tightly fitted to the lower side of the liquid storage container, multiple air blowing pipes respectively connected to and communicating with the annular air chamber, and a bag puller connected to the annular air chamber. The filtration and feeding mechanism includes a container assembly, a drive mechanism connected to the container assembly, and a filter bag built into the container assembly and connected to the bag-pulling component. The drive mechanism can drive the container assembly to flip, so that the container assembly can be sealed and connected or separated from the annular air chamber. When the container assembly is sealed and connected to the annular air chamber, multiple air blowing pipes are inserted into the filter bag, blowing air obliquely downward toward the filter bag and obliquely upward toward the filter bag to accelerate the solid-liquid separation of the slurry and loosen the separated solid filter material. When the container assembly is separated from the annular air chamber, the filter bag can be moved out of the container assembly under the combined action of the pulling force of the bag-pulling component and gravity, so that the solid filter material in the filter bag falls into the receiving container. The container assembly is also connected to an external liquid collection device to realize the collection of filtrate.

[0006] As a further improvement of the present invention, an air-blowing flow aid is provided on the upper side of the liquid storage container. The air-blowing flow aid is connected to an external air supply source and the inner cavity of the liquid storage container. The air-blowing direction of the air-blowing flow aid is downward to push the slurry in the liquid storage container to flow downward. At least two level sensors are also provided on the liquid storage container, which are spaced apart in the vertical direction to monitor the liquid level of the slurry in the liquid storage container.

[0007] As a further improvement of the present invention, the container assembly is connected to the external liquid collection device via the drive mechanism; The filter feeding mechanism is also provided with a sealing and locking mechanism. When the container assembly and the annular air cavity are sealed and connected, the sealing and locking mechanism can apply an upward force to the container assembly to lock the sealed and connected state of the container assembly and the annular air cavity.

[0008] As a further improvement of the present invention, both sides of the container assembly that meet the annular air cavity are made of antistatic sealing material, and a sealing ring is provided on at least one side of the two sides of the container assembly that meet the annular air cavity.

[0009] As a further improvement of the present invention, the container assembly includes a container body and a support assembly. The container body is a hollow cylinder with an open side and a liquid outlet on the other side. The support assembly includes a semi-cage structure formed by multiple support ribs and a support flange fixedly connected to one side of the semi-cage structure. The semi-cage structure is inserted into the container body. The support flange is fixedly and sealed to the open side of the container body. Furthermore, a connecting ring A protruding from the support flange is provided on the side of the support flange facing away from the container body for sealing and engaging with the annular air chamber.

[0010] As a further improvement of the present invention, the filter bag is laid in the semi-cage structure, and the bag opening of the filter bag is fixedly sleeved on the inner hole of the supporting flange; the connecting ring A is fixedly pressed onto the bag opening of the filter bag. The bag-pulling component is provided with a hook fixedly connected to the annular air cavity and a pull rope connecting the hook to the inner surface of the filter bag.

[0011] As a further improvement of the present invention, a connecting ring portion B is fixedly provided on the lower side of the annular air cavity for sealing and engaging with the connecting ring portion A; and an inflatable sealing ring is also provided on the connecting ring portion B.

[0012] As a further improvement of the present invention, the drive mechanism includes a drive motor, a rotating shaft that is pulsatorically connected to the output end of the drive motor, and a support assembly for providing rotational support for the rotating shaft, wherein the rotating shaft is fixedly connected to the support flange.

[0013] As a further improvement of the present invention, the rotating shaft is a hollow structure, and the rotating shaft is connected and communicated with the liquid outlet of the container body and the external liquid collection device through a flexible hose; A protective box is also provided on the outside of the support component, and the protective box is connected to an external protective air source.

[0014] As a further improvement of the present invention, the sealing and locking mechanism is provided with two sets of lifting drive modules and a locking plate. The two sets of lifting drive modules are spaced apart and arranged side by side, and the side-by-side direction of the two sets of lifting drive modules is defined as the first horizontal direction. Each set of lifting drive modules is provided with a gantry base, a transverse slider, a drive component, a support block, and a lifting slider. The gantry base is provided with two columns arranged side by side along a second horizontal direction perpendicular to the first horizontal direction and a crossbeam fixedly connected between the tops of the two columns. The transverse slider is slidably disposed on the crossbeam along the second horizontal direction. The drive component is disposed on the crossbeam and is used to provide power for the transverse slider to reciprocate along the second horizontal direction. The support block is located below the crossbeam, and a locking plane and an unlocking ramp are smoothly connected on the upper side of the support block. The lifting slider is vertically slidably mounted on the horizontal slider, and the lower end of the lifting slider also rolls in contact with the upper side of the support block through a roller. That is, the horizontal slider is driven to reciprocate along the second horizontal direction by the driving component, which can cause the lifting slider to reciprocate between the locking plane and the unlocking ramp, thereby causing the lifting slider to move up and down. The locking plate is fixedly connected between the top ends of the lifting sliders in the two sets of lifting drive modules, and can press against or disengage from the support flange under the action of the lifting slider.

[0015] The beneficial effects of this invention are: ① This invention sets up multiple air blowing pipes in the pneumatic auxiliary discharge mechanism. When the equipment is performing filtration, the multiple air blowing pipes can blow air towards the outside of the filter bag and towards the inside of the liquid storage container. This bidirectional airflow design not only uses airflow pressure to accelerate the liquid in the slurry through the filter bag to achieve rapid solid-liquid separation and significantly improve filtration efficiency, but also disturbs and loosens the deposited solid filter material during the filtration process, preventing the solid filter material from being over-compacted or clogging the filter bag, and facilitating subsequent material unloading operations. ② This invention also innovatively incorporates a bag-pulling component connected to the filter bag in the pneumatic discharge mechanism. When unloading is required, the drive separates the container assembly from the annular air chamber. Simultaneously, utilizing the combined pulling force of the bag-pulling component and gravity, the filter bag can be automatically and forcibly moved out of the container assembly, achieving automatic unloading. Understandably, this invention utilizes mechanical force supplemented by gravity to achieve unloading, completely breaking the adhesion or adsorption between the solid filter material and the filter bag, allowing the solid filter material in the filter bag to fall smoothly and completely into the receiving container, achieving efficient and clean automatic unloading. Furthermore, because the unloading process is smooth and clean, it effectively reduces the number of times the filter bag needs cleaning, thereby effectively extending the service life of the filter bag and reducing production costs. ③ This invention adopts a vertical layout from top to bottom, sequentially arranging the liquid storage container, pneumatic auxiliary discharge mechanism, filter feeding mechanism, and receiving container. In particular, the container assembly in the filter feeding mechanism, through a driven flipping mechanism, can both seal and connect with the annular air chamber for pressurized filtration and separate from the annular air chamber for bag unloading. This design cleverly utilizes the same set of sealing surfaces to achieve the construction and disassembly of the filter chamber, simplifying the equipment structure and improving operational stability and automation. ④ This invention's design connects the container assembly to an external liquid collection device, allowing the separated filtrate to be promptly exported and collected, avoiding secondary pollution and facilitating subsequent filtrate treatment, thus meeting energy-saving and environmentally friendly production requirements. Attached Figure Description

[0016] Figure 1 This is a layout diagram of the solid-liquid separation equipment described in this invention during production applications; Figure 2 This is a three-dimensional structural diagram of the solid-liquid separation device described in this invention; Figure 3 for Figure 2 One of the partial structural schematic diagrams of the solid-liquid separation device shown (with the base removed); Figure 4 for Figure 2 The second partial structural schematic diagram of the solid-liquid separation device shown (with the base removed); Figure 5 for Figure 3A partial structural diagram of the solid-liquid separation device shown (excluding the liquid storage container, the protective box, etc.); Figure 6 for Figure 4 A partial structural diagram of the solid-liquid separation device shown in the diagram (the liquid storage container, the protective shell, the bellows cover, etc. have been removed). Figure 7 for Figure 6 A partial structural schematic diagram of the lifting drive module shown in the figure; Figure 8 for Figure 6 The diagram shows the pneumatic exhaust mechanism from a first-person perspective. Figure 9 for Figure 6 The diagram shows the pneumatic exhaust mechanism from a second-view perspective. Figure 10 for Figure 6 A schematic diagram of the container component shown; Figure 11 for Figure 10 A partial structural diagram of the container component shown; Figure 12 for Figure 11 The diagram shows a partial structure of the container component as viewed from another perspective.

[0017] Referring to the accompanying drawings, the following explanations are provided: 1. Liquid storage container; 10. Feed pipe; 11. Cleaning nozzle; 2. Pneumatic auxiliary discharge mechanism; 20. Annular air chamber; 21. Air blowing pipe; 22. Sealing ring; 23. Connecting ring B; 24. Hook; 25. Sealing gasket; 3. Filter discharge mechanism; 30. Container assembly; 300. Container body; 301. Semi-cage structure; 3010. Arc-shaped support rib; 3011. Circular support rib; 302. Support flange; 303. Connecting ring A; 304. Upper sealing gasket; 305. Positioning pin; 306. Protective gasket; 31. Drive mechanism; 310. Drive motor; 311. 312. Shaft; 313. Base; 314. Oil seal sleeve; 315. Protective box; 32. Filter bag; 33. Sealing and locking mechanism; 330. Lifting drive module; 3301. Column; 3302. Crossbeam; 3303. Horizontal sliding block; 3304. Drive component; 3305. Support block; 3306. Lifting slider; 3307. Locking plane; 3308. Unlocking ramp; 3309. Roller; 3310. Auxiliary plate; 331. Locking plate; 332. Protective shell; 333. Bellows cover; 4. Material receiving container; 5. Air blowing aid; 6. Liquid level sensor; 7. Machine base. Detailed Implementation

[0018] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] Example:

[0020] This embodiment provides a solid-liquid separation device for efficiently separating slurry into solid and liquid components, and for independently collecting the resulting solid filter media and filtrate.

[0021] Please see the appendix Figure 1 To be continued Figure 12 As shown, the solid-liquid separation equipment provided in this embodiment has the following structure: it includes a liquid storage container 1, a pneumatic auxiliary discharge mechanism 2, a filtration and feeding mechanism 3, and a receiving container 4 arranged sequentially from top to bottom. The liquid storage container 1 is a hollow structure with a closed upper side and an open lower side, and it is connected to an external slurry supply device. The pneumatic auxiliary discharge mechanism 2 has an annular air chamber 20 connected to an external air supply source and tightly fitted to the lower side of the liquid storage container 1, multiple air blowing pipes 21 connected to and communicating with the annular air chamber 20, and a bag-pulling component connected to the annular air chamber 20. The filtration and feeding mechanism 3 has a container assembly 30, a drive mechanism 31 connected to the container assembly 30, and a filter bag 32 built into the container assembly 30 and connected to the bag-pulling component. The drive mechanism 31 is capable of driving... The container assembly 30 is flipped to seal and connect or separate from the annular air chamber 20. When the container assembly 30 is sealed and connected to the annular air chamber 20, multiple air blowing pipes 21 are inserted into the filter bag 32, blowing air obliquely downward toward the filter bag 32 and obliquely upward toward the filter bag 32 to accelerate the solid-liquid separation of the slurry and loosen the separated solid filter material. When the container assembly 30 separates from the annular air chamber 20, the filter bag 32 can be moved out of the container assembly 30 under the combined action of the pulling force of the bag pulling member and gravity, so that the solid filter material in the filter bag 32 falls into the receiving container 4. In addition, the container assembly 30 is also connected to an external liquid collection device to realize the collection of filtrate.

[0022] Understandably, the working method of the solid-liquid separation equipment described in this embodiment is as follows: S1: Before starting the equipment, check and confirm the standby status of the equipment. The confirmation includes at least the following: the container assembly 30 is sealed and connected to the annular air chamber 20; the annular air chamber 20 is connected to an external air supply source through its air nozzle; the container assembly 30 is connected to an external liquid collection device; the liquid storage container 1 is connected to an external slurry supply device through the feed pipe 10 installed on its top side; etc.

[0023] Supplementary Explanation: ① The external air supply source can be, but is not limited to, a gas storage tank containing clean compressed air or protective gas (such as nitrogen). Understandably, the annular gas chamber 20 is connected to and communicates with the gas storage tank via a gas nozzle and a gas delivery pipeline. Depending on production needs, a gas flow meter, flow control valve, pressure gauge, pressure control valve, and check valve are also installed on the gas delivery pipeline. ② The external liquid collection device mainly includes a diaphragm pump and a liquid collection container. The diaphragm pump is connected to and communicates with the liquid collection container and the container assembly 30 via a liquid delivery pipeline A. ③ The external slurry supply device mainly includes a reaction vessel containing slurry and a water pump connected to the reaction vessel. The water pump is also connected to the feed pipe 10 via a liquid delivery pipeline B. Additionally, depending on production needs, a liquid flow meter, flow control valve, pressure gauge, pressure control valve, etc., can be installed on the liquid delivery pipeline A and the liquid delivery pipeline B, respectively.

[0024] S2: The controller controls the inlet ball valve on the infusion pipeline B to open and controls the water pump to start working, so that the slurry enters the storage container 1 according to the set flow parameters.

[0025] Understandably, after a set amount of slurry is injected into the storage container 1, the water pump stops working and the inlet ball valve closes.

[0026] S3: The slurry flows into the filter bag 32, the filtrate is separated, and the solid filter material remains in the filter bag 32.

[0027] It should be specifically noted that: ① In the above-mentioned solid-liquid separation process, multiple air blowing pipes 21 continuously blow air obliquely downwards towards the filter bag 32 and obliquely upwards away from the filter bag 32. When the air blowing pipes 21 blow air obliquely downwards towards the filter bag 32 (i.e., blow air out of the filter bag 32), the gas will carry the liquid and quickly be discharged from the filter bag 32, thereby significantly improving the drainage efficiency, that is, significantly improving the solid-liquid separation efficiency / filtration efficiency. When the air blowing pipes 21 blow air obliquely upwards away from the filter bag 32 (i.e., blow air into the liquid storage container 1), the gas will form bubbles inside the solid filter material and be discharged. This can effectively prevent the solid filter material from clumping during the filtration process, that is, ensure that the solid filter material obtained after filtration remains in a loose state, which facilitates the subsequent material unloading operation. ② In the above-mentioned solid-liquid separation process, the filtrate flowing into the container assembly 30 will be continuously pumped into the collection container by the diaphragm pump.

[0028] S4: After the filtration process is completed, the controller controls the drive mechanism 31 to operate. The drive mechanism 31 drives the container assembly 30 to rotate 180° in the forward direction, so that the container assembly 30 separates from the annular air chamber 20. During the separation process, the filter bag 32 moves out of the container assembly 30 under the combined action of the pulling force of the bag puller and gravity, so that the solid filter material in the filter bag 32 falls into the receiving container 4. Understandably, in order to ensure that as much solid filter material as possible falls out of the filter bag 32, the container assembly 30 can be controlled to perform multiple "forward rotation-reverse rotation-forward rotation...", that is, the bag puller pulls the filter bag 32 multiple times to completely discharge the material in the filter bag 32.

[0029] In addition, after the filtration process is completed, the controller will also control the air blowing pipe 21 to stop blowing air and control the diaphragm pump to shut down, depending on production needs.

[0030] S5: The drive mechanism 31 drives the container assembly 30 to rotate 180° in the opposite direction, so that the container assembly 30 and the annular air chamber 20 are sealed and connected. Understandably, during or after the sealing and connection of the container assembly 30 and the annular air chamber 20, the controller controls the air blowing pipe 21 to blow air, so that the filter bag 32 is initially blown open / expanded. After the slurry falls, the filter bag 32 is fully expanded.

[0031] S6: Repeat steps S2 to S5 above to perform a new round of solid-liquid separation.

[0032] S7: After the solid-liquid separation operation is completed, the solid filter material in the receiving container 4 is transferred away; then, with the container assembly 30 and the annular air chamber 20 sealed together, the cleaning nozzle 11 located on the top side of the liquid storage container 1 is activated to clean the inside of the equipment. It is understood that: ① the cleaning nozzle 11 is connected to the online cleaning system (i.e., the CIP system) in the production line. The CIP system is a conventional technical means and, since it is not a protected technical point of this application, it will not be described in detail here; ② the generated cleaning waste liquid is ultimately collected by the aforementioned collection container.

[0033] As can be seen from the above, the solid-liquid separation equipment described in this embodiment has the following advantages: ① In this embodiment, multiple air blowing pipes 21 are set in the pneumatic auxiliary discharge mechanism 2. When the equipment is performing filtration, the multiple air blowing pipes 21 can blow air towards the outside of the filter bag 32 and towards the inside of the liquid storage container 1. This bidirectional airflow design not only uses airflow pressure to accelerate the liquid in the slurry through the filter bag 32 to achieve rapid solid-liquid separation and significantly improve filtration efficiency, but also disturbs and loosens the deposited solid filter material during the filtration process to prevent the solid filter material from being over-compacted or clogging the filter bag, which facilitates the subsequent material pouring operation. ② This embodiment also innovatively incorporates a bag-pulling component connected to the filter bag 32 in the pneumatic discharge mechanism 2. When unloading is required, the drive separates the container assembly 30 from the annular air chamber 20. Simultaneously, utilizing the combined pulling force of the bag-pulling component and gravity, the filter bag 32 can be automatically and forcibly moved out of the container assembly 30, achieving automatic unloading. In other words, this embodiment utilizes mechanical force supplemented by gravity to achieve unloading, completely breaking the adhesion or adsorption between the solid filter material and the filter bag, allowing the solid filter material in the filter bag to fall smoothly and completely into the receiving container 4, achieving efficient and clean automatic unloading. Furthermore, because the unloading process is smooth and clean, it effectively reduces the number of times the filter bag needs cleaning, thereby effectively extending the service life of the filter bag and reducing production costs. ③ This embodiment adopts a vertical layout from top to bottom, with the liquid storage container 1, the pneumatic discharge mechanism 2, the filter feeding mechanism 3, and the receiving container 4 arranged sequentially. In particular, the container assembly 30 in the filter feeding mechanism 3 is driven to flip, allowing it to both seal and connect with the annular air chamber 20 for pressurized filtration and separate from the annular air chamber 20 for bag unloading. This design cleverly utilizes the same set of sealing surfaces to achieve the construction and disassembly of the filter chamber, simplifying the equipment structure and improving the operational stability and automation level of the equipment. ④ This embodiment is designed to connect the container assembly 30 to an external liquid collection device, allowing the separated filtrate to be promptly exported and collected, avoiding secondary pollution and facilitating subsequent filtrate treatment, thus meeting the requirements of energy-saving and environmentally friendly production.

[0034] The following provides a more detailed description of the specific structure of the solid-liquid separation equipment described in this embodiment.

[0035] First, regarding the liquid storage container 1.

[0036] Please continue to refer to the appendix. Figure 2 and attached Figure 3As shown, the liquid storage container 1 is a hollow cylindrical structure with a closed upper side and an open lower side, and the lower side of the liquid storage container 1 is fixedly mounted on the base 7 by multiple support columns. In addition to the feed pipe 10 and cleaning nozzle 11 mentioned above, this embodiment also provides a pressure gauge for sensing the air pressure in the inner cavity of the liquid storage container 1 and a pressure relief pneumatic valve that works in conjunction with the pressure gauge on the upper side of the liquid storage container 1, and a liquid level sensor 6 for monitoring the slurry level in the liquid storage container 1 is sealed and installed on the side wall of the liquid storage container 1. It is understood that the liquid level sensor 6 is generally configured with at least two and is spaced apart in the vertical direction.

[0037] Additional explanation: To ensure the sealing of the liquid level sensor 6 during installation, in this embodiment, when the liquid level sensor 6 is installed on the side wall of the liquid storage container 1, rubber sealing gaskets are provided on both the inner and outer sides of the mounting part (i.e. the threaded part) of the liquid level sensor 6 to prevent slurry from seeping into the threaded part.

[0038] In particular, please continue to refer to the appendix. Figure 3 As shown, this embodiment also innovatively provides an air-blowing flow aid 5 on the upper side of the liquid storage container 1. The air-blowing flow aid 5 connects an external air supply source to the inner cavity of the liquid storage container 1, and the air-blowing direction of the air-blowing flow aid 5 is downward to push the slurry in the liquid storage container 1 downward. It can be understood that when a sealed environment is formed inside the liquid storage container 1 (i.e., after the container assembly 30 and the annular air chamber 20 are sealed and connected) and the slurry is injected, the downward air blowing by the air-blowing flow aid 5 can create downward pressure inside the liquid storage container 1, thereby applying a downward thrust to the slurry, accelerating the downward flow of the slurry, and further improving the filtration efficiency of the entire device.

[0039] Furthermore, the air-blowing aid 5 may be, but is not limited to, a 1 / 8 wide-angle fan-shaped nozzle, which is connected to an external air supply source (clean compressed air or nitrogen) through an air supply pipeline.

[0040] Next, regarding the pneumatic exhaust mechanism 2.

[0041] Please continue to refer to the appendix. Figure 5 Appendix Figure 6 Appendix Figure 8 and attached Figure 9As shown, the annular air cavity 20 can be tightly connected to the lower side of the liquid storage container 1 by riveting or other means, and is arranged on the same central axis as the liquid storage container 1; moreover, in order to ensure the tightness of the connection between the annular air cavity 20 and the liquid storage container 1, a sealing gasket 25 is also provided between the upper side of the annular air cavity 20 and the lower side of the liquid storage container 1; multiple air blowing pipes 21 are fixedly connected to and communicate with the annular air cavity 20, and each air blowing pipe 21 is provided with multiple air blowing holes, and some air blowing holes on each air blowing pipe 21 blow air towards the outside of the filter bag 32, and the remaining air blowing holes blow air towards the inside of the liquid storage container 1; the bag pulling component is provided with a hook 24 and a pull rope (not shown in the figure), the hook 24 is fixedly connected to the annular air cavity 20, and the two ends of the pull rope are respectively fixedly connected to the hook 24 and the inner surface of the filter bag 32.

[0042] It should be noted that: the multiple air blowing pipes 21 and the hooks 24 are all arranged in the vertical region where the inner hole 200 of the annular air cavity 20 is located; that is, the downward projections of the multiple air blowing pipes 21 and the hooks 24 all fall within the downward projection of the inner hole 200 of the annular air cavity 20. Thus, during and after the container assembly 30 is reversed to seal and connect with the annular air cavity 20, the multiple air blowing pipes 21 and the hooks 24 are automatically inserted into the filter bag 32 (as indicated by the attached...). Figure 5 It can be seen that after the container assembly 30 and the annular air chamber 20 are sealed and aligned, the bag opening of the filter bag 32 is aligned and connected with the inner hole 200 of the annular air chamber 20.

[0043] Furthermore, the hook 24 can also adopt a hollow tube structure, and the upper part of the hook 24 is fixedly connected and communicates with the annular air cavity 20, and the lower part of the hook 24 is provided with an air hole for blowing air downwards; in this way, during the sealing and fitting process of the container assembly 30 and the annular air cavity 20, the hook 24 and the multiple air blowing pipes 21 work together to quickly blow open / expand the filter bag 32 and lay it flat in the semi-cage structure 301 described below.

[0044] In addition, to ensure the sealing performance when the annular air chamber 20 and the container assembly 30 are connected, this embodiment also incorporates the following structural innovations in the annular air chamber 20: The design ensures that both sides of the annular air chamber 20 that mate with the container assembly 30 are made of antistatic sealing material (such as antistatic vulcanized rubber), and a sealing ring 22 is provided on at least one of the mating sides of the annular air chamber 20 and the container assembly 30. It is understood that the use of antistatic sealing material on both mating sides of the annular air chamber 20 and the container assembly 30 not only ensures production safety but also serves as a first sealing structure; combined with the sealing ring 22 as a second sealing structure, the sealing performance when the annular air chamber 20 and the container assembly 30 are connected is significantly improved, ensuring no leakage during filtration operations.

[0045] For further details, please refer to the appendix. Figure 9 As shown, in this embodiment, a connecting ring B23 is fixedly provided on the lower side of the annular air cavity 20 (by adhesive bonding). Please refer to the appendix for further details. Figure 10 As shown, in this embodiment, the container assembly 30 is provided with a connecting ring portion A303 for sealing and engaging with the connecting ring portion B23, and both the connecting ring portion A303 and the connecting ring portion B23 are made of antistatic vulcanized rubber material. Furthermore, this embodiment also provides a sealing ring 22 on the connecting ring portion B23, and the sealing ring 22 is preferably an inflatable sealing ring (this inflatable sealing ring is connected to the annular air chamber 20 or an external air supply source), and at least two are provided.

[0046] Furthermore, taking the state when the annular air cavity 20 and the container assembly 30 are engaged and connected as a reference, the annular air cavity 20, the connecting ring portion B23, the sealing ring 22, the connecting ring portion A303 and the container assembly 30 are arranged on the same axis, and the inner hole wall of the connecting ring portion B23 and the connecting ring portion A303 are aligned and connected.

[0047] Next, regarding the filter feeding mechanism 3.

[0048] Please continue to refer to the appendix. Figure 10 To be continued Figure 12As shown, the container assembly 30 includes a container body 300 and a support assembly. The container body 300 is a hollow cylinder with an open side and a liquid outlet on the other side. The support assembly includes a semi-cage structure 301 formed by multiple support ribs and a support flange 302 fixedly connected to one side of the semi-cage structure 301. The semi-cage structure 301 is inserted into the container body 300. The support flange 302 is fixedly and sealed to the open side of the container body 300. Furthermore, a connecting ring portion A303 protruding from the support flange 302 is provided on the side of the support flange 302 facing away from the container body 300. The connecting ring portion A303 is used for sealing and engaging with the aforementioned connecting ring portion B23.

[0049] For further details, please refer to the appendix. Figure 11 and attached Figure 12 As shown, in the semi-cage structure 301, the plurality of supporting ribs are composed of a plurality of arc-shaped supporting ribs 3010 and a circular supporting rib 3011. The plurality of arc-shaped supporting ribs 3010 are arranged in a ring, and one end of each arc-length supporting rib 3010 is fixedly connected to the circular supporting rib 3011, while the other end of each arc-length supporting rib 3010 is fixedly connected to the inner wall of the supporting flange 302. Furthermore, the semi-cage structure 301 and the supporting flange 302 are integrally connected.

[0050] Furthermore, the support flange 302 can be fixedly fitted onto the open side of the container body 300 by means of riveting or screw connection, and in order to ensure the sealing performance between the support flange 302 and the container body 300, a sealing gasket is also provided between the support flange 302 and the open side of the container body 300.

[0051] Based on the above-described embodiment of the container assembly 30, the filter bag 32 is installed as follows: Please refer to the appendix for further details. Figure 10 and attached Figure 11 As shown, the filter bag 32 is laid in the semi-cage structure 301, and at the same time, the bag opening of the filter bag 32 is fixedly sleeved on the inner hole of the support flange 302, and the connecting ring A303 is fixedly pressed onto the bag opening of the filter bag 32.

[0052] Furthermore, the installation method of the bag opening of the filter bag 32 is as follows: Please refer to the appendix. Figure 11As shown, in this embodiment, a stepped portion (not shown in the figure) is provided on the side of the support flange 302 facing away from the container body 300, surrounding the inner hole of the support flange 302. The lower sealing gasket, the bag opening of the filter bag 32, and the upper sealing gasket 304 are sequentially stacked on the stepped portion and then fixed by multiple positioning pins 305. It is understood that the connecting ring portion A303 can also be fixedly connected to the upper sealing gasket 304 by the positioning pins 305 or by adhesive bonding.

[0053] Based on the above-described implementation structure of the container component 30, the implementation structure of the drive mechanism 31 can be optimized as follows: Please refer to the appendix. Figure 3 and attached Figure 5 As shown, the drive mechanism 31 includes a drive motor 310, a rotating shaft 311 pulverizedly connected to the output end of the drive motor 310, and a support assembly for providing rotational support for the rotating shaft 311. The rotating shaft 311 is fixedly connected to the support flange 302 in the container assembly 30. It is understood that when the drive motor 310 operates and is driven by the rotating shaft 311, it can drive the entire container assembly 30 to rotate.

[0054] Furthermore, the drive motor 310 is fixedly mounted on the base 7, and the drive motor 310 has a braking function to ensure safe braking during rotation. Drive motors with braking functions are commonly used power devices in the field of automated machinery, and therefore will not be described in detail here.

[0055] The support assembly includes a base 312 fixedly mounted on the base 7, a copper bearing fixedly embedded in the base 312 and rotatably connected to the rotating shaft 311, and an oil sealing sleeve 313 sleeved on the outside of the rotating shaft 311. Furthermore, to ensure smooth rotation of the rotating shaft 311, the support assembly is configured in two sets and spaced apart along the axial direction of the rotating shaft 311.

[0056] The rotating shaft 311 can be connected to the output end of the drive motor 310 via a coupling. Specifically, the rotating shaft 311 is designed as a hollow structure, and it is also connected and communicated with the liquid outlet of the container body 300 and the external liquid collection device (specifically, a diaphragm pump) via a flexible hose. Understandably, connecting the container body 300 to the external liquid collection device via the rotating shaft 311 simplifies the equipment structure and improves its integration.

[0057] Furthermore, this embodiment also provides a protective housing 314 around each of the aforementioned support components, and the protective housing 314 is connected to an external protective gas source (such as clean compressed air or nitrogen). Understandably, by continuously supplying protective gas into the protective housing 314, a slightly positive pressure is maintained inside the protective housing 314 (typically maintained between 50 and 1000 Pa). This effectively prevents dust or flammable and explosive substances from entering the protective housing 314, thereby effectively ensuring the safe operation of the drive mechanism 31.

[0058] In addition, to better ensure the sealing performance when the annular air chamber 20 and the container assembly 30 are connected, this embodiment also incorporates the following structural innovations in the filter feeding mechanism 3: Please refer to the appendix. Figure 4 As shown, the filter feeding mechanism 3 is also provided with a sealing and locking mechanism 33. After the container assembly 30 and the annular air chamber 20 are sealed and connected, the sealing and locking mechanism 33 can apply an upward force to the container assembly 30 to lock the sealed and connected state between the container assembly 30 and the annular air chamber 20.

[0059] For further details, please refer to the appendix. Figure 4 Appendix Figure 6 and attached Figure 7As shown, the preferred implementation structure of the sealing and locking mechanism 33 is as follows: the sealing and locking mechanism 33 is provided with two sets of lifting drive modules 330 and locking plates 331. The two sets of lifting drive modules 330 are spaced apart and arranged side by side on the base 7, and the side-by-side direction of the two sets of lifting drive modules 330 is defined as the first horizontal direction (the first horizontal direction is further parallel to the axial direction of the rotating shaft 311); each set of lifting drive modules 330 is provided with a gantry base, a transverse slider 3303, and a driving component 3. 304 (which may be a cylinder / or brake cylinder), support block 3305, and lifting slider 3306. The gantry base has two columns 3301 arranged side by side along a second horizontal direction perpendicular to the first horizontal direction, and a crossbeam 3302 fixedly connected between the tops of the two columns 3301. The horizontal slider 3303 is slidably disposed on the crossbeam 3302 along the second horizontal direction. The driving member 3304 is disposed on the crossbeam 3302 and is used to provide the horizontal slider 3303 with the support block 3306. 303 provides the power for reciprocating motion along the second horizontal direction; the support block 3305 is disposed below the crossbeam 3302, and a smoothly transitioning locking plane 3307 and unlocking ramp 3308 are formed on the upper side of the support block 3305; the lifting slider 3306 slides vertically on the horizontal slider 3303, and the lower end of the lifting slider 3306 also rolls in contact with the upper side of the support block 3305 through a roller 3309, that is: through the driving member 330 4. Driving the horizontal slider 3303 to reciprocate along the second horizontal direction can cause the lifting slider 3306 to reciprocate between the locking plane 3307 and the unlocking inclined plane 3308, thereby causing the lifting slider 3306 to perform lifting motion; the locking plate 331 is fixedly connected between the top ends of the two lifting sliders 3306 in the two sets of lifting drive modules 330, and can press against or disengage from the support flange 302 under the drive of the lifting slider 3306.

[0060] Understandably, after the container assembly 30 and the annular air chamber 20 are sealed and connected, the driving member 3304 drives the transverse slider 3303 to retract along the second horizontal direction and moves the lifting slider 3306 from the unlocking ramp 3308 to the locking plane 3307. During the movement of the lifting slider 3306, it also moves upward, thereby causing the locking plate 331 to rise and press against the lower side of the support flange 302, thus achieving the sealing of the container assembly 30 and the annular air chamber 20. The sealed connection is locked. When the equipment is ready to unload, the drive unit 3304 drives the transverse slider 3303 to extend along the second horizontal direction and moves the lifting slider 3306 from the locking plane 3307 to the unlocking ramp 3308. During the movement of the lifting slider 3306, it also descends, thereby causing the locking plate 331 to descend and separate from the support flange 302, thus unlocking the sealed connection between the container assembly 30 and the annular air chamber 20. After unlocking, the drive mechanism 31 drives the container assembly 30 to flip forward to separate from the annular air chamber 20 for unloading.

[0061] Further, it can be understood that the sealing and locking mechanism 33 mainly has the following functions: ① To achieve mechanical locking and prevent the container assembly 30 from accidentally separating from the annular gas chamber 20. ② To provide an upward retaining force to continuously compensate for any slight rebound or wear that may occur in the connecting ring A303, connecting ring B23, and sealing ring 22, ensuring that the above-mentioned sealing structures are always in a tight sealed connection state throughout the filtration process, greatly improving the safety of the solid-liquid separation equipment during operation.

[0062] Furthermore, in each of the lifting drive modules 330, the crossbeam 3302 preferably adopts a U-shaped channel steel structure. A slide rail extending along the second horizontal direction is fixedly installed on the upper side of the U-shaped channel steel structure. The transverse slider 3303 is inserted into the U-shaped channel steel structure and slidably connected to the slide rail. In addition, a hollow groove extending along the second horizontal direction is provided on the bottom wall of the U-shaped channel steel structure to avoid obstructing the horizontal movement of the lifting slider 3306. Furthermore, a sliding groove A is provided through the transverse slider 3303 to allow the lifting slider 3306 to pass through vertically and to guide the lifting movement of the lifting slider 3306.

[0063] Furthermore, in each of the lifting drive modules 330, the roller 3309 is rotatably mounted on the lower end of the lifting slider 3306 via a rotating shaft. An auxiliary plate 3310 is also fixedly arranged between the two columns 3301. One side of the auxiliary plate 3310 is provided with a guide groove that is slidably connected and cooperates with the rotating shaft to help improve the stability of the lifting slider 3306 when it moves.

[0064] Furthermore, each of the lifting drive modules 330 is also provided with a protective shell 332 and a bellows cover 333. The protective shell 332 and the bellows cover 333 work together to house and protect the gantry base, the transverse slider 3303, the drive component 3304, the support block 3305, and the lifting slider 3306.

[0065] Furthermore, in each of the lifting drive modules 330, a solenoid valve is installed on the air pipe connecting the drive component 3304 and the external air source. When the lifting slider 3306 moves to the locking plane 3307, the solenoid valve is immediately controlled to close. In this case, even if there are fluctuations in the air source, the lifting slider 3306 can be kept on the locking plane 3307 to maintain the locking effect, which is suitable for high-risk working scenarios.

[0066] Furthermore, in this embodiment, protective pads 306 made of antistatic Teflon material are provided on both sides of the locking plate 331 and the supporting flange 302 that are in contact with each other, so as to protect the locking plate 331 and the supporting flange 302 during the pressing contact process.

[0067] In summary, the solid-liquid separation equipment of the present invention has a reasonable and simple structural design and stable operation. It can not only achieve rapid solid-liquid separation and loosen the deposited solid filter material, significantly improving filtration efficiency and separation effect, but also achieve efficient and clean automatic unloading, which well meets production needs.

[0068] Finally, it should be noted that the suffixes "A", "B", etc. in the component names in this specification (such as connecting ring A, connecting ring B, etc.) are only for the purpose of clarity of description and are not intended to limit the scope of implementation of this invention.

[0069] Many specific details have been set forth in the foregoing description to provide a thorough understanding of the present invention. However, the above description is merely a preferred embodiment of the present invention, and the present invention can be implemented in many other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed above. Furthermore, any person skilled in the art can make many possible variations and modifications to the technical solutions of the present invention, or modify them into equivalent embodiments, using the methods and techniques disclosed above, without departing from the scope of the present invention. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, shall still fall within the protection scope of the present invention.

Claims

1. A solid-liquid separation device, characterized in that: It includes, from top to bottom, a liquid storage container (1), a pneumatic discharge mechanism (2), a filter feeding mechanism (3), and a receiving container (4); The liquid storage container (1) is a hollow structure with a closed upper side and an open lower side, and the liquid storage container (1) is connected to an external slurry supply device. The pneumatic exhaust mechanism (2) is provided with an annular air chamber (20) connected to an external air supply source and tightly fitted to the lower side of the liquid storage container (1), multiple air blowing pipes (21) respectively connected to and communicating with the annular air chamber (20), and a bag puller connected to the annular air chamber (20). The filter feeding mechanism (3) includes a container assembly (30), a drive mechanism (31) connected to the container assembly (30), and a filter bag (32) built into the container assembly (30) and connected to the bag puller. The drive mechanism (31) can drive the container assembly (30) to flip so that the container assembly (30) is sealed and connected or separated from the annular air chamber (20). When the container assembly (30) is sealed and connected to the annular air chamber (20), multiple air blowing pipes (21) are inserted into the filter bag. In 32), air is blown obliquely downward toward the filter bag (32) and obliquely upward toward the filter bag (32) to accelerate the solid-liquid separation of the slurry and loosen the separated solid filter material; when the container assembly (30) separates from the annular air chamber (20), the filter bag (32) can move out of the container assembly (30) under the combined action of the pulling force and gravity of the bag pulling member, so that the solid filter material in the filter bag (32) falls into the receiving container (4); the container assembly (30) is also connected to an external liquid collection device to realize the collection of filtrate.

2. The solid-liquid separation device according to claim 1, characterized in that: An air-blowing aid (5) is provided on the upper side of the liquid storage container (1). The air-blowing aid (5) connects an external air supply source with the inner cavity of the liquid storage container (1), and the air-blowing direction of the air-blowing aid (5) is downward to push the slurry in the liquid storage container (1) downward. At least two liquid level sensors (6) are also provided on the liquid storage container (1) at intervals in the vertical direction to monitor the liquid level of the slurry in the liquid storage container (1).

3. The solid-liquid separation device according to claim 1, characterized in that: The container assembly (30) is connected to the external liquid collection device via the drive mechanism (31); The filter feeding mechanism (3) is also provided with a sealing locking mechanism (33). When the container assembly (30) and the annular air chamber (20) are sealed and connected, the sealing locking mechanism (33) can apply an upward force to the container assembly (30) to lock the sealed connection state between the container assembly (30) and the annular air chamber (20).

4. The solid-liquid separation device according to claim 3, characterized in that: The container assembly (30) and the annular air cavity (20) are both made of antistatic sealing material on their respective sides, and a sealing ring (22) is provided on at least one side of the container assembly (30) and the annular air cavity (20).

5. The solid-liquid separation device according to claim 3, characterized in that: The container assembly (30) includes a container body (300) and a support assembly. The container body (300) is a hollow cylinder with an open side and a liquid outlet on the other side. The support assembly includes a semi-cage structure (301) formed by multiple support ribs and a support flange (302) fixedly connected to one side of the semi-cage structure (301). The semi-cage structure (301) is inserted into the container body (300). The support flange (302) is fixedly and sealed outside the open side of the container body (300). Furthermore, a connecting ring A (303) protruding from the support flange (302) is provided on the side of the support flange (302) facing away from the container body (300) for sealing and engaging with the annular air chamber (20).

6. The solid-liquid separation device according to claim 5, characterized in that: The filter bag (32) is laid in the semi-cage structure (301), and the bag opening of the filter bag (32) is fixedly sleeved on the inner hole of the support flange (302); the connecting ring A (303) is fixedly pressed onto the bag opening of the filter bag (32). The bag assembly is provided with a hook (24) fixedly connected to the annular air chamber (20) and a pull rope connected between the hook (24) and the inner surface of the filter bag (32).

7. The solid-liquid separation device according to claim 5, characterized in that: A connecting ring B (23) is fixedly provided on the lower side of the annular air cavity (20) for sealing and engaging with the connecting ring A (303); and an inflatable sealing ring is also provided on the connecting ring B (23).

8. The solid-liquid separation device according to claim 5, characterized in that: The drive mechanism (31) includes a drive motor (310), a rotating shaft (311) that is connected to the output end of the drive motor (310) and a support assembly for providing rotational support for the rotating shaft (311), and the rotating shaft (311) is fixedly connected to the support flange (302).

9. The solid-liquid separation device according to claim 8, characterized in that: The rotating shaft (311) is a hollow structure, and the rotating shaft (311) is connected and communicates with the liquid outlet of the container body (300) and the external liquid collection device through a flexible hose; A protective box (314) is also provided on the outer cover of the support component, and the protective box (314) is connected to an external protective air source.

10. The solid-liquid separation device according to claim 5, characterized in that: The sealing locking mechanism (33) is provided with two sets of lifting drive modules (330) and locking plates (331). The two sets of lifting drive modules (330) are spaced apart and arranged side by side, and the side-by-side direction of the two sets of lifting drive modules (330) is defined as the first horizontal direction. Each set of lifting drive modules (330) is provided with a gantry base, a transverse slider (3303), a drive component (3304), a support block (3305), and a lifting slider (3306). The gantry base is provided with two sides that are parallel to the first horizontal direction. A pair of horizontally aligned columns (3301) and a crossbeam (3302) fixedly connected between the tops of the two columns (3301) are arranged side by side in the second horizontal direction. A horizontal sliding block (3303) is slidably mounted on the crossbeam (3302) along the second horizontal direction. A driving member (3304) is mounted on the crossbeam (3302) and is used to provide power for the horizontal sliding block (3303) to reciprocate along the second horizontal direction. A support block (3305) is mounted on the crossbeam (3302). Below the beam (3302), and on the upper side of the support block (3305), a locking plane (3307) and an unlocking ramp (3308) are formed with a smooth transition. While the lifting slider (3306) slides vertically on the transverse slider (3303), the lower end of the lifting slider (3306) also rolls against the upper side of the support block (3305) via a roller (3309). That is, the transverse slider (3303) is driven by the driving member (3304) to move vertically along... The second horizontal reciprocating motion can drive the lifting slider (3306) to reciprocate between the locking plane (3307) and the unlocking inclined plane (3308), thereby driving the lifting slider (3306) to perform lifting motion; the locking plate (331) is fixedly connected between the top ends of the lifting slider (3306) in the two sets of lifting drive modules (330), and can press against or disengage from the support flange (302) under the drive of the lifting slider (3306).

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