Solid-liquid separation filtering equipment, filtering system and filtering method

Abstract

The invention relates to the technical field of filtering, in particular to solid-liquid separation filtering equipment, a solid-liquid separation filtering system and a solid-liquid separation filtering method. The solid-liquid separation and filtration equipment comprises a driving mechanism and a filter, the driving mechanism is used for driving the filter to shake, and the driving mechanism is arranged on one side of the filter; the filter comprises a filter shell, a filter support and a filter rotating shaft, a plurality of stock solution inlets are formed in the upper portion of the filter shell, a plurality of clean solution outlet pipes are arranged on the lower portion of the filter shell, and a plurality of filter discs used for filtering stock solutions are arranged in the filter shell. The solid-liquid separation and filtration equipment performs filtration by utilizing the principle of a crank rocker mechanism, and is safer and more reliable compared with the prior art, and parts are not easy to damage; and compared with the prior art, the assembling and matching among the components are simpler and more convenient. The filtering system comprises less equipment, so that the cost and the manufacturing cost are greatly reduced, and the failure rate is also greatly reduced. The filtering method is simple and reliable to operate and can realize a better filtering effect.

Description

Technical Field

[0001] The present invention relates to the technical field of filtration, and more specifically, to solid-liquid separation filtration equipment, a filtration system and a filtration method. Background Art

[0002] The need to separate mixed liquids exists extensively in practical applications. For example, the raw liquid is catalytic oil slurry, which is a by-product of the catalytic process in refineries. Its density is as high as 1100 kg / m3 and its viscosity is greater than 1000 cst (kinematic viscosity at 100°C). It contains about 1% solids, the main components of which are aluminum and silicon oxides.

[0003] In the prior art, the solid-liquid separation of the above-mentioned catalytic oil slurry is generally carried out by a centrifugal processor, that is, the solid-liquid separation is carried out by the centrifugal force in a high-speed rotating centrifugal processor drum. Figure 1 The prior art filter shown, it should be noted that Figure 1 The filter is not a centrifugal processor, and includes a casing 1, a filter disc 2, a sealing gasket 3, a shaft 4, a base 5, a machine seal 6, a synchronous pulley 7, a rotary joint 8, a motor 9, and a synchronous belt 10. The principle is roughly as follows: the raw liquid enters the casing 1 from the liquid inlet. After the casing 1 is filled with the raw liquid, the motor 9 drives the shaft 4 to rotate through the synchronous belt 10 and the synchronous pulley 7. The shaft 4 is fixed to a plurality of filter discs 2. A sintered mesh is fixed on the filter disc 2 as a filter medium. The raw liquid becomes clean liquid after passing through the filter disc 2 and the sintered mesh. The clean liquid enters the shaft 4 located in the middle. The shaft 4 is connected inside, and the clean liquid flows downward along the shaft 4 to the liquid outlet for output.

[0004] But if Figure 1 The existing technology has the following drawbacks: 1. The filter's structure is complex. Shaft 4 rotates in a high-temperature, high-pressure environment for extended periods, making it susceptible to damage and failure. Furthermore, installation and maintenance of shaft 4 are cumbersome. 2. In actual use, filter disc 2 requires replacement, but the filter disc 2 and shaft 4 require a sealed assembly, which requires high manufacturing requirements and can easily cause problems during assembly. 3. Rotary joint 8 is a universal joint, which can easily fail in actual use, leading to liquid leakage.

[0005] In addition, the existing filtration system contains more equipment, is more expensive, is complicated to operate, and has a relatively high failure rate. Summary of the Invention

[0006] Based on this, the purpose of the present invention is to provide solid-liquid separation filtration equipment, a filtration system and a filtration method; the solid-liquid separation filtration equipment uses the principle of a crank rocker mechanism for filtration, which is safer and more reliable than the existing technology, and the components are not easily damaged; and the assembly and coordination between the components is also simpler and more convenient than the existing technology.

[0007] The filtration system includes fewer devices, which greatly reduces the cost and construction cost, and also greatly reduces the failure rate.

[0008] The filtering method is simple and reliable to operate and can achieve better filtering effect.

[0009] The technical solution of the present invention is: solid-liquid separation filtering equipment, which includes a driving mechanism and a filter, wherein the driving mechanism is used to drive the filter to shake, and the driving mechanism is arranged on one side of the filter;

[0010] The filter comprises a filter housing, a filter support, and a filter shaft. The filter shaft is connected to both sides of the filter housing. The filter housing and the filter shaft are arranged on the filter support.

[0011] The upper part of the filter housing is provided with a plurality of raw liquid inlets, the lower part of the filter housing is provided with a plurality of clean liquid outlet pipes, and the interior of the filter housing is provided with a plurality of filter discs for filtering the raw liquid.

[0012] The filter primarily filters the raw liquid, while the drive mechanism primarily drives the filter to shake. The present invention utilizes the principle of a crank-rocker mechanism to drive the filter to shake and filter the raw liquid. Compared to existing technologies, this is safer and more reliable, with components less susceptible to damage. Furthermore, assembly between components is simpler and more convenient than with existing technologies.

[0013] Furthermore, the filter disc is fixedly connected to the filter housing, the bottom of the filter disc is connected to the clean liquid outlet pipe, and the filter disc is in communication with the clean liquid outlet pipe;

[0014] The filter disc is disc-shaped and includes a filter disc support arranged 360 degrees around the filter disc support, and the filter disc support is covered with a support closing plate;

[0015] The filter disc further comprises a filter medium net and an outlet fixing portion. The filter medium net is arranged on both sides of the bracket closing plate and is a disc-shaped structure. The outlet fixing portion is connected to the clean liquid outlet pipe.

[0016] Specifically, the driving mechanism includes a motor, a gearbox, a first rotating shaft, a connecting rod, and a second rotating shaft;

[0017] The motor output shaft of the motor is connected to the gearbox, a gearbox output shaft is provided in the middle of the gearbox, and the gearbox output shaft is connected to the gearbox rotating wheel; one end of the connecting rod is connected to the first rotating shaft, and the other end of the connecting rod is connected to the second rotating shaft, and the first rotating shaft is connected to the gearbox rotating wheel; the second rotating shaft is connected to the upper part of the filter.

[0018] More specifically, the gearbox rotating wheel is a circular rotating wheel that rotates around the gearbox output shaft; the number of the filter shafts is two, and the two filter shafts are independently provided and respectively connected to the two sides of the filter housing; the filter bracket is fixedly provided with a filter shaft bracket, and the filter shaft bracket is provided with a bearing;

[0019] One end of the filter shaft is fixedly connected to the filter housing, and the other end of the filter shaft is inserted into the filter shaft bracket through a bearing and is rotatably connected thereto.

[0020] Furthermore, the lower part of the filter housing is provided with a plurality of raw liquid outlets, the upper part of the filter housing is through-connected with a plurality of raw liquid inlets, and the lower part of the filter housing is through-connected with a plurality of raw liquid outlets; the upper part of the filter housing is also provided with a plurality of compressed gas inlet pipes, one end of the filter disc is connected to the compressed gas inlet pipe, and the other end of the filter disc is connected to the clean liquid outlet pipe.

[0021] Furthermore, the bearing is a self-aligning bearing; and the filter medium mesh is a metal sintered mesh.

[0022] The filtration system uses the solid-liquid separation filtration equipment, which also includes: a high-level raw liquid tank, a compressed air tank, a clean liquid pump, a concentrated raw liquid pump, a slag remover, and a liquid pump; one end of the high-level raw liquid tank is connected to the raw liquid through a pipeline, and the other end is connected to the raw liquid inlet of the filter through a pipeline;

[0023] The compressed air tank is connected to the compressed air inlet pipe of the filter through a pipeline;

[0024] The clean liquid outlet pipe of the filter is connected to the outside through a pipeline and a clean liquid pump;

[0025] The raw liquid outlet of the filter is connected to the deslagging machine through a pipeline and a concentrated raw liquid pump;

[0026] The slag remover is connected to the high-position raw liquid tank through a pipeline and a liquid pump.

[0027] Specifically, the lowest point of the high-position raw liquid tank is higher than the highest point of the filter.

[0028] A filtration method, using the filtration system, comprises the following steps:

[0029] S1. The raw liquid is transported to the filter through the high-position raw liquid tank, and the interior of the filter housing is filled through the raw liquid inlet. All inlets and outlets of the filter housing are sealed;

[0030] S2, driving process: Turn on the motor, the motor output shaft of the motor drives the gearbox output shaft to rotate through the gearbox, and the rotation of the gearbox output shaft drives the gearbox rotating wheel to rotate as a whole. Since one end of the connecting rod is connected to the first rotating shaft and the other end of the connecting rod is connected to the second rotating shaft, the overall rotation of the gearbox rotating wheel can drive the filter to shake around the filter rotating shaft through the connecting rod;

[0031] S3, Filtration process: The raw liquid cannot enter the filter disc from the 360-degree surrounding bracket sealing plate. The raw liquid can only be filtered by the filter medium mesh to form clean liquid and enter the filter disc. The clean liquid then flows out from the clean liquid outlet pipe at the bottom of the filter disc and is then transported to the outside through pipelines and clean liquid pumps;

[0032] S4, backwashing process: During the filtration process, solids in the original liquid will get stuck on the filter medium, thus forming filter cakes. The filter cakes are the solid matter contained in the original liquid that remains on the filter after the liquid passes through the filter. Therefore, after the equipment has been running for a period of time, the filter cakes must be removed to restore the filtration effect. The compressed air tank injects compressed air into the filter through the compressed air inlet pipe to backwash the filter cakes attached to the filter medium of the filter disc.

[0033] S5, slag removal process: After the backwash process, a concentrated stock solution is formed, which is output from the stock solution outlet, passes through a pipeline and a concentrated stock solution pump, and is transported to the slag remover, which discharges the solid slag;

[0034] S6. Raw liquid recovery process: After the slag remover discharges the solid slag, it outputs the liquid after slag removal. The liquid after slag removal passes through the liquid pump and returns to the high-level raw liquid tank.

[0035] Furthermore, a heating device is provided inside the high-position raw liquid tank.

[0036] Compared with the prior art, the beneficial effects are:

[0037] 1. The present invention adopts a split structure, that is, the drive mechanism and filter are separately arranged. The filter mainly filters the raw liquid, and the drive mechanism mainly drives the filter to shake. Utilizing the principle of a crank rocker mechanism to drive the filter to shake and filter the raw liquid, the present invention is safer and more reliable than existing technologies, and the components are less susceptible to damage.

[0038] 2. The split structure adopted by the present invention is simpler and more convenient to assemble and match the components than the integrated structure of the prior art. If the equipment encounters a fault during operation, it is more convenient to replace the components.

[0039] 3. The present invention has two filter shafts, which are independently arranged and connected to both sides of the filter housing. Compared with the prior art in which one shaft passes through the interior of the filter, the present invention has two filter shafts that are independently arranged, making the installation and maintenance of the filter shafts convenient and less susceptible to damage and failure. In addition, the sealing requirements of the filter are reduced, making it less likely for the seal to fail and result in liquid leakage.

[0040] 4. The bearing of the present invention is a self-aligning bearing. When the filter is shaken (swung) around the filter shaft, the two filter shafts can be staggered and not necessarily on the same straight line. This is more in line with the actual environment of the workshop, reduces the use requirements, and the equipment can be placed on a non-horizontal surface.

[0041] 5. The present invention adopts a mesh filter medium net for filtration, which has a good filtration effect and does not require frequent replacement of the filter medium.

[0042] 6. The present invention backwashes the filter medium net by injecting compressed air into the compressed gas inlet pipe, which saves costs compared to the existing technology that requires replacement of filter materials.

[0043] 7. The filtration system of the present invention includes fewer devices, which greatly reduces the cost and production cost, and also greatly reduces the failure rate. The filtration method of the present invention is simple and reliable to operate, and can achieve good filtration effect.

[0044] For better understanding and implementation, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is an overall schematic diagram of the prior art filter.

[0046] Figure 2 It is a schematic diagram of the overall cross-sectional structure of the filter of the present invention.

[0047] Figure 3 It is a side view schematic diagram of the driving mechanism and filter of the present invention.

[0048] Figure 4 It is a simplified three-dimensional diagram of the connection between the driving mechanism and the filter of the present invention.

[0049] Figure 5 It is a schematic diagram of the driving principle of the present invention.

[0050] Figure 6 It is an enlarged schematic diagram of the internal cross-sectional structure of the filter of the present invention.

[0051] Figure 7 It is a schematic cross-sectional view of the filter disc of the present invention.

[0052] Figure 8It is a schematic diagram of the front structure of the filter disc of the present invention.

[0053] Figure 9 It is a schematic diagram of the side structure of the filter disc of the present invention.

[0054] Figure 10 It is an enlarged schematic diagram of the compressed gas inlet pipe of the present invention.

[0055] Figure 11 It is an enlarged schematic diagram of the fixing bolt of the present invention.

[0056] Figure 12 It is a schematic diagram of the filtering state of the present invention.

[0057] Figure 13 It is a schematic diagram of the invented filtration system. DETAILED DESCRIPTION

[0058] To make the objectives, features, and advantages of the present invention more readily apparent, the following detailed description of the present invention is provided with reference to the accompanying drawings. The accompanying drawings illustrate several embodiments of the present invention. However, the present invention may be implemented in many different forms and is not limited to the embodiments described herein.

[0059] In the present invention, unless otherwise expressly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be a communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0060] In the present invention, unless otherwise expressly specified and limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. The terms "vertical," "horizontal," "left," "right," "above," "below," and similar expressions are for illustrative purposes only and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as limiting the present invention.

[0061] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0062] like Figure 2-6 As shown, the solid-liquid separation filtering device includes a driving mechanism and a filter 200, the driving mechanism is used to drive the filter 200 to shake, and the driving mechanism is provided on one side of the filter 200;

[0063] The filter 200 includes a filter housing 2, a filter support 202, and a filter shaft 201. The filter shaft 201 is connected to both sides of the filter housing 2. The filter housing 2 and the filter shaft 201 are mounted on the filter support 202.

[0064] A plurality of raw liquid inlets 205 are provided on the upper portion of the filter housing 2 , a plurality of clean liquid outlet pipes 6 are provided on the lower portion of the filter housing 2 , and a plurality of filter discs 1 for filtering the raw liquid are provided inside the filter housing 2 .

[0065] Specifically, the driving mechanism includes a motor 101, a gearbox 103, a first rotating shaft 105, a connecting rod 106, and a second rotating shaft 107;

[0066] The motor output shaft of the motor 101 is connected to the gearbox 103. A gearbox output shaft 104 is provided in the middle of the gearbox 103. The gearbox output shaft 104 is connected to the gearbox rotating wheel 104a. One end of the connecting rod 106 is connected to the first rotating shaft 105, and the other end of the connecting rod 106 is connected to the second rotating shaft 107. The first rotating shaft 105 is connected to the gearbox rotating wheel 104a. The second rotating shaft 107 is connected to the upper part of the filter 200.

[0067] In this embodiment, Figure 3-5As shown, the crank-rocker mechanism is used to drive the filter 200 to shake and filter the raw liquid. The driving principle is as follows: the motor 101 is turned on, and the motor output shaft of the motor 101 drives the transmission output shaft 104 to rotate through the transmission 103. The rotation of the transmission output shaft 104 drives the transmission rotating wheel 104a to rotate as a whole. Because one end of the connecting rod 106 is connected to the first rotating shaft 105 and the other end of the connecting rod 106 is connected to the second rotating shaft 107, the overall rotation of the transmission rotating wheel 104a can drive the filter 200 to shake (swing) about the filter rotating shaft 201 through the connecting rod 106.

[0068] like Figure 5 The motion trajectory can be displayed through this diagram. Figure 5 The dotted circle on the left represents the motion trajectory of the transmission rotating wheel 104 a , which rotates around the transmission output shaft 104 . Figure 5 The dotted line on the right represents the trajectory of the filter 200 shaking (swinging) around the filter shaft 201. It can be seen that the filter 200 is driven to shake (swing) by the principle of the crank rocker mechanism to filter the raw liquid.

[0069] The filter bracket 202 plays a supporting role and can support the filter housing 2 and the filter shaft 201.

[0070] The filter disc 1 plays the role of filtering the raw liquid.

[0071] Specifically, the gearbox rotating wheel 104a is a circular rotating wheel that rotates around the gearbox output shaft 104. In this embodiment, the circular rotating wheel is easy to install and disassemble.

[0072] More specifically, Figure 2 As shown, there are two filter shafts 201, each independently connected to either side of the filter housing 2. This independent arrangement of the two filter shafts 201 in this embodiment facilitates installation and maintenance, making them less susceptible to damage and failure. Furthermore, the sealing requirements for the filter 200 are reduced, making seal failure and resulting liquid leakage less likely. Furthermore, since the filter shafts 201 do not extend through the interior of the filter 200, they do not interfere with the filtration process of the filter disc 1.

[0073] Further, such as Figure 2In the embodiment, a filter shaft bracket 204 is fixedly mounted on the filter bracket 202, and a bearing 203 is disposed within the filter shaft bracket 204. One end of the filter shaft 201 is fixedly connected to the filter housing 2, while the other end of the filter shaft 201 is inserted into the filter shaft bracket 204 via the bearing 203 and rotatably connected thereto. In this embodiment, the filter shaft bracket 204 supports and positions the filter shaft 201. Furthermore, one end of the filter shaft 201 is fixedly connected to the filter housing 2, and the two move synchronously.

[0074] Furthermore, bearing 203 is a self-aligning bearing. A self-aligning bearing is one whose raceways are spherical and can accommodate angular misalignment between the centerlines of the inner and outer raceways. It primarily supports radial loads, but can also withstand a small amount of bidirectional axial load. In this embodiment, when the filter 200 is rocked (oscillated) about the filter shaft 201, the two filter shafts 201 can be staggered and not necessarily aligned. This better accommodates the actual workshop environment, reduces operational requirements, and allows the device to be placed on non-horizontal surfaces.

[0075] Specifically, the filter disc 1 is a disc-shaped structure. Figure 2 The overall cross-sectional structure of the filter is shown in FIG. 1 . In fact, the filter disc 1 is a disc-shaped structure.

[0076] More specifically, Figure 3 In the figure, the motor 101 is further provided with a motor bracket 102, and the motor 101 is fixed to the gearbox 103 through the motor bracket 102. The bottom of the gearbox 103 is also provided with a gearbox bracket 108 for supporting the gearbox 103. The above bracket is provided to play a supporting and fixing role.

[0077] like Figure 2 and Figure 6 As shown, the lower portion of the filter housing 2 is provided with a plurality of raw liquid outlets 206, and the upper portion of the filter housing 2 is connected to a plurality of raw liquid inlets 205. The lower portion of the filter housing 2 is also connected to a plurality of raw liquid outlets 206. The upper portion of the filter housing 2 is also provided with a plurality of compressed gas inlet pipes 5. One end of the filter disc 1 is connected to the compressed gas inlet pipe 5, and the other end of the filter disc 1 is connected to the clean liquid outlet pipe 6.

[0078] like Figure 2 and Figure 6 and Figure 13 In the figure, a represents the raw liquid, which enters the filter housing 2 from the raw liquid inlet 205; b represents the clean liquid after filtration, which is output from the clean liquid outlet pipe 6 to the outside of the filter housing 2; c represents the compressed air for backwashing, which is injected into the filter disc 1 from the compressed gas inlet pipe 5; e represents the concentrated raw liquid, which is output from the raw liquid outlet 206 to the outside of the filter housing 2; f represents the liquid after deslagging.

[0079] like Figure 7-12 As shown, the filter disc 1 is fixedly connected to the filter housing 2, and the bottom of the filter disc 1 is connected to the clean liquid outlet pipe 6, and the filter disc 1 is in communication with the clean liquid outlet pipe 6;

[0080] The filter disc 1 is disc-shaped and includes a filter disc support 11 arranged 360 degrees around it, and a support closing plate 12 is provided on the filter disc support 11;

[0081] The filter disc 1 further includes a filter medium net 13 and an outlet fixing portion 16 . The filter medium net 13 is provided on both sides of the bracket closing plate 12 and is a disc-shaped structure. The outlet fixing portion 16 is connected to the clean liquid outlet pipe 6 .

[0082] In this embodiment, filter disc 1 is the core component of the filtration equipment, filtering the raw liquid. The raw liquid in this embodiment is catalytic slurry, a byproduct of the catalytic process in oil refineries. It has a density exceeding 1100 kg / m³, a viscosity exceeding 1000 cSt (kinematic viscosity at 100°C), and contains approximately 1% solids, primarily aluminum and silicon oxides. The presence of solids significantly reduces the application value of the raw liquid. If the solids can be removed as required, the application value of the raw liquid can be significantly increased by more than 2 times.

[0083] In addition, the filter disc support 11 arranged 360 degrees around the filter disc 1 makes the overall strength of the filter disc 1 better.

[0084] Moreover, the filter disc support 11 is covered with a support sealing plate 12, and the filter medium net 13 is arranged on both sides of the support sealing plate 12. This arrangement prevents the raw liquid from entering the filter disc 1 from the 360-degree surrounding support sealing plate 12 (i.e. Figure 8 The bracket closing plates 12 in the middle circle are all closed structures). The raw liquid can only be filtered by the filter medium net 13 to form a clean liquid and enter the filter disc 1 (such as Figure 12 horizontal arrows).

[0085] The filter disc 1 of the present invention is fixedly connected to the filter housing 2 and moves synchronously, resulting in a strong integrity, no scattered redundant parts, and strong stability during movement of the filter disc 1. The present invention uses a mesh filter medium net 13 for filtration, which has a good filtration effect and does not require frequent replacement of the filter medium.

[0086] Furthermore, the filter medium mesh 13 is a sintered metal mesh. In this embodiment, the sintered metal mesh is a novel filter material made from multiple layers of woven metal wire mesh through a special lamination pressing and vacuum sintering process. It exhibits high mechanical strength and an overall rigid structure. The mesh openings of each layer of mesh intersect to form a uniform and ideal filter structure. This not only overcomes the shortcomings of conventional metal wire mesh, such as low strength, poor rigidity, and unstable mesh shape, but also allows for the rational matching and design of the material's pore size, permeability, and strength characteristics, resulting in excellent filtration accuracy, filtration impedance, mechanical strength, wear resistance, heat resistance, and processability. Its overall performance is significantly superior to other types of filter materials, such as sintered metal powder, ceramics, fibers, filter cloth, and filter paper.

[0087] Furthermore, the filter disc 1 includes a compressed gas inlet pipe 5. An inlet fixing portion 15 is provided on the upper portion of the filter disc 1. The compressed gas inlet pipe 5 is connected to the inlet fixing portion 15, thereby communicating with the filter disc 1. The inlet fixing portion 15 and the outlet fixing portion 16 are both recessed grooves that are recessed into the filter disc 1. The compressed gas inlet pipe 5 and the clean liquid outlet pipe 6 are respectively inserted into the grooves.

[0088] Specifically, it also includes fixing bolts 7. Filter disc fixing portions 14 are provided on both sides of the filter disc 1 along the disc-shaped direction. The fixing bolts 7 pass through the filter housing 2 and are inserted into the filter disc fixing portions 14 to fix the filter disc 1 to the filter housing 2. The filter disc fixing portions 14 are groove structures that are recessed toward the inside of the filter disc 1.

[0089] In this embodiment, the method of fixing the filter disc 1 to the filter housing 2 by passing the above-mentioned fixing bolts 7 through the filter housing 2 and then inserting them into the filter disc fixing part 14 is simple and reliable, and can firmly fix the filter disc 1 and the filter housing 2 together, so that the filter disc 1 and the filter housing 2 can move synchronously.

[0090] Furthermore, an insulation layer 3 is provided around the filter housing 2. An insulation shell 4 is provided outside the insulation layer 3, and fixing bolts 7 secure the insulation shell 4 to the filter housing 2. The provision of the insulation layer 3 ensures a relatively stable temperature within the filter housing 2. The insulation shell 4 also serves to secure the insulation layer 3.

[0091] like Figure 2 and 13 As shown, the filtration system uses solid-liquid separation filtration equipment, which also includes: a high-level raw liquid tank Q1, a compressed air tank Q2, a clean liquid pump Q3, a concentrated raw liquid pump Q4, a slag remover Q5, and a liquid pump Q6; one end of the high-level raw liquid tank Q1 is connected to the raw liquid through a pipeline, and the other end is connected to the raw liquid inlet 205 of the filter 200 through a pipeline;

[0092] The compressed air tank Q2 is connected to the compressed air inlet pipe 5 of the filter 200 through a pipeline;

[0093] The clean liquid outlet pipe 6 of the filter 200 is connected to the outside through a pipeline and a clean liquid pump Q3;

[0094] The raw liquid outlet 206 of the filter 200 is connected to the deslagging machine Q5 through a pipeline and a concentrated raw liquid pump Q4;

[0095] The slag remover Q5 is connected to the high-level raw liquid tank Q1 through a pipeline and a liquid pump Q6.

[0096] The lowest point of the high-level raw liquid tank Q1 is higher than the highest point of the filter 200 .

[0097] In this embodiment, the lowest point of the high-level raw liquid tank Q1 is higher than the highest point of the filter 200. The raw liquid in the high-level raw liquid tank Q1 flows to the low-level filter 200 by gravity, and a certain height difference is maintained between the two. The height difference is used to provide a stable low-pressure filtering pressure to the filter 200.

[0098] Filtration method, using the filtration system described above, such as Figure 1-13 As shown, wherein the following steps are included:

[0099] S1, the raw liquid is transported to the filter 200 through the high-level raw liquid tank Q1, and fills the interior of the filter housing 2 through the raw liquid inlet 205, and all inlets and outlets of the filter housing 2 are sealed;

[0100] S2, driving process: Turn on the motor 101, and the motor output shaft of the motor 101 drives the gearbox output shaft 104 to rotate through the gearbox 103. The rotation of the gearbox output shaft 104 drives the gearbox rotating wheel 104a to rotate as a whole. Because one end of the connecting rod 106 is connected to the first rotating shaft 105 and the other end of the connecting rod 106 is connected to the second rotating shaft 107, the overall rotation of the gearbox rotating wheel 104a can drive the filter 200 to shake around the filter rotating shaft 201 through the connecting rod 106;

[0101] S3, Filtration process: The raw liquid cannot enter the filter disc 1 through the 360-degree surrounding bracket sealing plate 12. The raw liquid can only be filtered by the filter medium mesh 13 to form clean liquid and enter the filter disc 1. The clean liquid then flows out from the clean liquid outlet pipe 6 at the bottom of the filter disc 1 and is then transported to the outside through the pipeline and clean liquid pump Q3;

[0102] S4, Backwashing Process: During the filtration process, solids in the raw liquid can become lodged on the filter media 13, forming a filter cake. The filter cake is the solid matter contained in the raw liquid that remains on the filter after the liquid passes through the filter. Therefore, after the equipment has been running for a period of time, this filter cake must be removed to restore the filtration effect. Compressed air tank Q2 injects compressed air into filter 200 through compressed air inlet pipe 5 to backwash the filter cake attached to filter media 13 of filter disc 1.

[0103] S5, slag removal process: After the backwash process, a concentrated stock solution is formed, which is output from the stock solution outlet 206, passes through the pipeline and the concentrated stock solution pump Q4, and is transported to the slag remover Q5, which discharges the solid slag;

[0104] In addition, it should be noted that the principle of the slag remover Q5 of the present invention is based on the technology developed by the applicant's invention patent (patent number: 2015101599999, patent name: A filtering device and its filtering method), so the structure and principle of the slag remover Q5 will not be described in detail here.

[0105] S6, raw liquid recovery process: After the slag remover Q5 discharges the solid slag, it outputs the liquid after slag removal. The liquid after slag removal passes through the liquid pump Q6 and returns to the high-level raw liquid tank Q1.

[0106] A heating device is also provided inside the high-level raw liquid tank Q1 to heat the raw liquid.

[0107] The present invention utilizes the principle of a crank-rocker mechanism to drive the filter to shake (oscillate) and filter the raw liquid. Compared with traditional centrifugal filtration, the filtration system of the present invention includes less equipment, significantly reduces costs and production costs, and significantly reduces the failure rate. The filtration method of the present invention is simple and reliable to operate, and can achieve good filtration results.

[0108] Furthermore, actual experimental data such as time, swing angle, rotation speed, output, mass ash content, backwash frequency, etc. are recorded to illustrate that the present invention has obvious advantages in practical application, as shown in the table below.

[0109] Filter operation test data record sheet (comprehensive)

[0110] May 18, 2025

[0111] Time (hours) Swing angle E (degrees) Speed ​​n (rev / s) Output (kg / hour) Ash content by mass (%) Backwash frequency (hours / times) 0 30 1 386 0.038 2 379 0.031 4 377 0.031 6 354 0.030 8 299 0.030 10 255 0.028 12 201 0.028 14 187 0.027 16 168 0.026 18 155 0.024 20 145 0.024 22 136 0.021 24 116 0.018 24

[0112] Filter operation test data record sheet (comprehensive)

[0113] May 20, 2025

[0114] Time (hours) Swing angle E (degrees) Speed ​​n (rev / s) Output (kg / hour) Ash content by mass (%) Backwash frequency (hours / times) 0 30 2 385 0.038 2 377 0.038 4 365 0.035 6 343 0.033 8 321 0.031 10 315 0.027 12 306 0.025 14 285 0.024 16 255 0.022 18 203 0.02 20 186 0.021 22 131 0.019 24 131 0.016 26 129 0.017 28 122 0.015 30 119 0.015 32 115 0.015 32

[0115] As can be seen from the two filter operation test data tables, the present invention utilizes the principle of a crank-rocker mechanism to drive the filter to rock (oscillate) and filter the raw liquid. By controlling factors such as rotational speed, swing angle, and backwash frequency, the filter accuracy and output can be comprehensively controlled. Compared with existing technologies, this method has significant practical advantages.

[0116] In the present invention, the principle of filtration is that the filter holes of the filter disc 1 first intercept solid particles larger than the filter holes, making the actual size of the filter holes smaller, and then intercepting smaller solids. In this process, the intercepted solids form a filter cake, and the filter cake becomes thicker and thicker as the filtration progresses. The thicker the filter cake, the higher the filtration accuracy, but the smaller the filtration output. The thickness of the filter cake corresponds to the output. To ensure the output, a backwash operation must be performed when the filter cake exceeds a certain thickness to remove the filter cake and restore production capacity.

[0117] The present invention utilizes the simple back-and-forth swinging of the filter disc 1 to cause relative movement between the filter disc 1 and the raw liquid. Without affecting the filtering function, the raw liquid repeatedly flushes the filter cake, thereby interfering with the thickness of the filter cake. By adjusting the frequency and amplitude of the swinging of the filter disc 1 (adjustment is implemented through operation and debugging), the filter cake is fixed at a thickness that meets both the filtering accuracy requirements and the output requirements. The effect is to greatly reduce the frequency of backwashing operations, and even eliminate the need for backwashing.

[0118] Backwashing is the most difficult operation in the entire filtration process, which has a great negative impact on accuracy, output, operation difficulty, equipment life, etc. The present invention greatly reduces or even eliminates these negative effects.

[0119] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Solid-liquid separation filtration equipment, characterized in that, It comprises a driving mechanism and a filter (200), wherein the driving mechanism is used to drive the filter (200) to shake, and the driving mechanism is arranged on one side of the filter (200); The filter (200) comprises a filter housing (2), a filter support (202), and a filter shaft (201); the filter shaft (201) is connected to both sides of the filter housing (2); the filter housing (2) and the filter shaft (201) are arranged on the filter support (202); The filter housing (2) is provided with a plurality of raw liquid inlets (205) on the upper part, a plurality of clean liquid outlet pipes (6) on the lower part, and a plurality of filter discs (1) for filtering the raw liquid are provided inside the filter housing (2).

2. The solid-liquid separation filtration equipment according to claim 1, characterized in that: The filter disc (1) is fixedly connected to the filter housing (2), the bottom of the filter disc (1) is connected to the clean liquid outlet pipe (6), and the filter disc (1) is in communication with the clean liquid outlet pipe (6); The filter disc (1) is disc-shaped and comprises a filter disc support (11) arranged around 360 degrees, and a support closing plate (12) is provided on the filter disc support (11); The filter disc (1) further comprises a filter medium net (13) and an outlet fixing portion (16). The filter medium net (13) is arranged on both sides of the bracket closing plate (12), and the filter medium net (13) is a disc-shaped structure; the outlet fixing portion (16) is connected to the clean liquid outlet pipe (6).

3. The solid-liquid separation filtration equipment according to claim 2, characterized in that: The driving mechanism includes a motor (101), a gearbox (103), a first rotating shaft (105), a connecting rod (106), and a second rotating shaft (107); The motor output shaft of the motor (101) is connected to the gearbox (103); a gearbox output shaft (104) is provided in the middle of the gearbox (103); the gearbox output shaft (104) is connected to the gearbox rotating wheel (104a); one end of the connecting rod (106) is connected to the first rotating shaft (105), and the other end of the connecting rod (106) is connected to the second rotating shaft (107); the first rotating shaft (105) is connected to the gearbox rotating wheel (104a); the second rotating shaft (107) is connected to the upper part of the filter (200).

4. The solid-liquid separation filtration equipment according to claim 3, characterized in that: The gearbox rotating wheel (104a) is a circular rotating wheel that rotates around the gearbox output shaft (104); there are two filter rotating shafts (201), which are independently arranged and respectively connected to the two sides of the filter housing (2); a filter rotating shaft bracket (204) is fixedly provided on the filter bracket (202), and a bearing (203) is provided in the filter rotating shaft bracket (204); One end of the filter shaft (201) is fixedly connected to the filter housing (2), and the other end of the filter shaft (201) is inserted into the filter shaft bracket (204) through a bearing (203) and is rotatably connected thereto.

5. The solid-liquid separation filtration equipment according to claim 4, characterized in that: The lower portion of the filter housing (2) is provided with a plurality of raw liquid outlets (206), the upper portion of the filter housing (2) is connected to the plurality of raw liquid inlets (205), and the lower portion of the filter housing (2) is connected to the plurality of raw liquid outlets (206); the upper portion of the filter housing (2) is also provided with a plurality of compressed gas inlet pipes (5), one end of the filter disc (1) is connected to the compressed gas inlet pipe (5), and the other end of the filter disc (1) is connected to the clean liquid outlet pipe (6).

6. The solid-liquid separation filtration equipment according to claim 4, characterized in that: The bearing (203) is a self-aligning bearing; the filter medium mesh (13) is a metal sintered mesh.

7. A filtration system using the solid-liquid separation filtration equipment according to claim 5, characterized in that: Also includes: A high-level raw liquid tank (Q1), a compressed air tank (Q2), a clean liquid pump (Q3), a concentrated raw liquid pump (Q4), a slag remover (Q5), and a liquid pump (Q6); one end of the high-level raw liquid tank (Q1) is connected to the raw liquid through a pipeline, and the other end is connected to the raw liquid inlet (205) of the filter (200) through a pipeline; The compressed air tank (Q2) is connected to the compressed air inlet pipe (5) of the filter (200) through a pipeline; The clean liquid outlet pipe (6) of the filter (200) is connected to the outside through a pipeline and a clean liquid pump (Q3); The raw liquid outlet (206) of the filter (200) is connected to the deslagging machine (Q5) through a pipeline and a concentrated raw liquid pump (Q4); The slag remover (Q5) is connected to the high-level raw liquid tank (Q1) through a pipeline and a liquid pump (Q6).

8. The filtration system according to claim 7, characterized in that: The lowest point of the high-position raw liquid tank (Q1) is higher than the highest point of the filter (200).

9. A filtration method using the filtration system according to claim 7, characterized in that: The following steps are involved: S1, the raw liquid is transported to the filter (200) through the high-position raw liquid tank (Q1), and is filled into the interior of the filter housing (2) through the raw liquid inlet (205), and all inlets and outlets of the filter housing (2) are sealed; S2, driving process: turning on the motor (101), the motor output shaft of the motor (101) drives the gearbox output shaft (104) to rotate through the gearbox (103), and the rotation of the gearbox output shaft (104) drives the gearbox rotating wheel (104a) to rotate as a whole. Since one end of the connecting rod (106) is connected to the first rotating shaft (105) and the other end of the connecting rod (106) is connected to the second rotating shaft (107), the overall rotation of the gearbox rotating wheel (104a) can drive the filter (200) to shake around the filter rotating shaft (201) through the connecting rod (106); S3, filtration process: the raw liquid cannot enter the filter disc (1) from the 360-degree surrounding bracket sealing plate (12). The raw liquid can only enter the filter disc (1) after being filtered by the filter medium net (13) to form a clean liquid. The clean liquid then flows out from the clean liquid outlet pipe (6) at the bottom of the filter disc (1) and is then transported to the outside through the pipeline and the clean liquid pump (Q3); S4, backwashing process: During the filtration process, solids in the original liquid will get stuck on the filter medium mesh (13), thereby forming a filter cake. The filter cake is the solid matter contained in the original liquid that remains on the filter after the liquid passes through the filter. Therefore, after the equipment has been running for a period of time, the filter cake must be removed to restore the filtration effect. The compressed air tank (Q2) injects compressed air into the filter (200) through the compressed air inlet pipe (5) to backwash the filter cake attached to the filter medium mesh (13) of the filter disc (1). S5, deslagging process: After the backwash process, a concentrated stock solution is formed, which is output from the stock solution outlet (206), passes through the pipeline and the concentrated stock solution pump (Q4), and is transported to the deslagging machine (Q5), and the deslagging machine (Q5) discharges the solid slag; S6, raw liquid recovery process: After the slag remover (Q5) discharges the solid slag, it outputs the liquid after slag removal. The liquid after slag removal passes through the liquid pump (Q6) and returns to the high-level raw liquid tank (Q1).

10. The filtering method according to claim 9, characterized in that: The high-position raw liquid tank (Q1) is also provided with a heating device inside.

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