Protein liquid filter

Abstract

This invention discloses a protein solution filter. The housing has an inlet and a outlet. A filter plate is disposed inside the housing to filter the protein solution, and the outlet is located on one side of the filter plate. A receiving box is disposed at the bottom of the housing to collect the protein solution falling from the filter plate. A pushing device is disposed inside the housing and can move along the surface of the filter plate to push the filtered material on the filter plate to the outlet. The pushing device is equipped with a cleaning component. After pushing the filtered material on the filter plate, the pushing device reciprocates on the filter plate, and the cleaning component contacts the surface of the filter plate and cleans the mesh on the filter plate. This application has automatic pushing and mesh cleaning functions, and has the advantages of high-efficiency filtration, convenient cleaning, and resource recycling.

Description

Technical Field

[0001] This invention belongs to the field of filtration device technology, and in particular relates to a protein liquid filter. Background Technology

[0002] Protein filtration systems are key equipment in food processing, biopharmaceuticals, and feed production. Their core function is to filter raw materials such as soybean protein, whey protein, and animal bone marrow protein, removing impurities, sediments, and incompletely broken solid particles. The filtration efficiency, precision, and ease of cleaning directly determine the quality and production efficiency of subsequent protein purification. The core technical requirements for this equipment are smooth filtration, thorough impurity removal, non-clogging mesh, easy cleaning, and no protein residue. It should achieve continuous and stable filtration, prevent impurity accumulation from affecting filtration efficiency, minimize protein waste, and be suitable for large-scale continuous production needs.

[0003] While current protein filters on the market can achieve basic filtration functions, they have significant technical shortcomings in areas such as filter media treatment, filter plate cleaning, and filtration efficiency maintenance. They cannot balance filtration accuracy and production efficiency, and long-term use can easily lead to problems such as decreased filtration effect, protein waste, and increased equipment maintenance costs. The specific technical defects are as follows: Firstly, existing filters do not have a dedicated material pushing structure on the filter plate. During the filtration process, impurities, solid particles and other filter materials will continue to accumulate on the surface of the filter plate and cannot be pushed to the discharge port in time. This causes the effective filtration area of ​​the filter plate to continuously decrease, the protein liquid filtration speed to slow down, the filtration efficiency to drop significantly, and in severe cases, it can even cause the filter plate to become clogged, making it impossible to continue the filtration operation and affecting the continuity of production.

[0004] Secondly, protein solutions have a certain viscosity. During the filtration process, fine impurities are easily adsorbed into the mesh of the filter plate. The existing filters do not have a matching cleaning structure. After the mesh is clogged, the machine needs to be stopped and the equipment disassembled. The impurities on the surface of the filter plate and inside the mesh need to be cleaned manually. The operation is cumbersome and time-consuming. This not only affects the efficiency of continuous production, but may also scratch the mesh of the filter plate, reduce the filtration accuracy, and increase the labor intensity of the operators.

[0005] Third, the existing filters require manual removal of filter media and separate disassembly and cleaning of the mesh. The two cannot be operated in conjunction, making the process cumbersome and inefficient. Furthermore, during the cleaning process, the residual protein solution on the filter plate is prone to denaturation and deterioration, contaminating the protein solution filtered subsequently and affecting the purity and safety of the product.

[0006] Fourth, the protein residue on the surface of the filter plate and inside the mesh cannot be completely removed by existing cleaning methods. It is either discarded with impurities or adheres to the inner wall of the equipment, resulting in a large waste of protein and increasing the cost of raw materials for production. At the same time, the residual protein is prone to bacterial growth, affecting the cleanliness of the equipment and further aggravating the risk of subsequent filtration contamination.

[0007] Fifth, the existing filters have poor coordination between filtration, feeding, and cleaning structures, making it impossible to achieve integrated "filtration-feeding-cleaning" operation. Furthermore, the connection between the filter plate and the housing is fixed, making cleaning and maintenance inconvenient. They cannot adapt to the filtration needs of protein solutions with different viscosities and impurity contents. After long-term use, the equipment performance deteriorates significantly, resulting in a short service life.

[0008] As the protein processing industry continues to demand higher product purity and production efficiency, the shortcomings of existing protein liquid filters—such as "filter material accumulation, easy clogging of mesh, cumbersome cleaning, and protein waste"—have become key bottlenecks restricting the quality and efficiency of subsequent protein purification. Therefore, there is an urgent need to develop a protein liquid filter with automatic feeding and mesh cleaning functions to address these technical pain points and achieve a synergistic improvement in efficient filtration, convenient cleaning, and resource recovery. Summary of the Invention

[0009] The summary section of this application is intended to briefly introduce the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0010] In order to overcome the shortcomings of the prior art, the present invention provides a protein solution filter.

[0011] To achieve the above objectives, the present invention adopts the following technical solution: a protein solution filter, comprising: The box has a feed inlet at the top and a discharge outlet on the side wall. A filter plate is installed inside the chamber to filter the protein solution, and the discharge port is located on one side of the filter plate. A receiving box, located at the bottom of the box, is used to collect protein liquid that falls from the filter plate; Protein filters also include: A feeding device is located inside the box and can move along the surface of the filter plate to push the filter material on the filter plate to the discharge port. The pushing device is equipped with a cleaning component. After pushing the filter material on the filter plate, the pushing device moves back and forth on the filter plate. The cleaning component contacts the surface of the filter plate and cleans the mesh on the filter plate. The pushing device includes a pushing block and a driving assembly. A receiving cavity is provided on the side wall of the housing. The driving assembly and the pushing block are respectively located in the receiving cavity. The driving assembly can drive the pushing block to move out of the receiving cavity and into the housing, and drive the pushing block to reciprocate on the filter plate. The cleaning assembly includes a movable plate and several bristles. When the pushing block moves on the filter plate, the movable plate drives the bristles to intermittently contact the filter plate, thereby cleaning the filter plate mesh.

[0012] Furthermore, the pusher block is provided with a first cavity, and the movable plate is provided with multiple through slots, through which the brush bristles pass; the inner wall of the first cavity is provided with a first protrusion, the first protrusion is provided with a first spring, one end of the first spring is provided with an end block, the movable plate is provided with a through hole, the first spring passes through the through hole, and the end block is threadedly connected with a first connecting block; the inner wall of the first cavity is also provided with a guide bar, and the movable plate is provided with a guide groove that cooperates with the guide bar.

[0013] Furthermore, the movable plate is provided with a second protrusion, the second protrusion is provided with a second cavity, the bottom of the second cavity is provided with a plurality of first movable grooves communicating with the through groove, the first movable groove is provided with a first mounting block, the brush bristles are connected to the first mounting block, and the first mounting block can move along the inner wall of the first movable groove.

[0014] Furthermore, a cam is provided in the first cavity, and a movable plate is located below the cam. A first connecting plate is provided on the movable plate, and the first connecting plate is set perpendicular to the surface of the movable plate. The height of the first connecting plate is greater than the height of the second protrusion. When the cam rotates, it contacts the top of the first connecting plate to push the movable plate to move towards the bottom of the first cavity.

[0015] Furthermore, a first push plate is provided in the second cavity, and a ventilation groove is provided on the first push plate. A second spring and a flap are provided at the bottom of the first push plate. One side of the flap is rotatably connected to the bottom of the first push plate. When the flap is parallel to the bottom surface of the first push plate, the flap covers the ventilation groove. A second push plate is slidably connected to the first connecting plate. A first push block is provided at the bottom of the second push plate, and the first push block abuts against the first push plate.

[0016] Furthermore, a fixed plate is slidably connected to the first push plate, and a fixed groove corresponding to the fixed plate is provided on the first connecting plate. The fixed plate is provided with a third protrusion and a third spring. One end of the third spring abuts against the first push block. The fixed plate is also provided with a second movable groove for the third protrusion to move. The third protrusion passes through the second movable groove so that one end of the third protrusion is at the top of the second push plate, and the rotation direction of the cam corresponds to the movement direction of the fixed plate.

[0017] Furthermore, the drive assembly includes a transmission wheel, a first spool, and a second spool. A first connecting rope is wound around the first spool, one end of which is fixed to the pusher block. A second connecting rope is wound around the second spool, one end of which is fixed to the side wall of the pusher block. The first and second connecting ropes are respectively connected to the side walls on both sides of the pusher block. The first and second spools are connected by a telescopic rod assembly. A second connecting block is provided on the inner wall of the receiving cavity. A first connecting shaft is provided on the side wall of the telescopic rod assembly. A connecting groove corresponding to the first connecting shaft is provided on the second connecting block. A limiting block is movably connected to the first connecting shaft. A first limiting groove and a second limiting groove corresponding to the limiting block are provided on the side wall of the connecting groove. After the first connecting shaft drives the telescopic rod assembly to rotate, the first or second spool and the transmission wheel form a transmission engagement.

[0018] Furthermore, a turntable is rotatably connected to the inner wall of the receiving cavity. A first magnetic block is provided on the turntable, and a second and third magnetic block are provided on the telescopic rod assembly. The second and third magnetic blocks are located on the side wall of the telescopic rod assembly facing the turntable. The second magnetic block is located near the first threaded wheel, and the third magnetic block is located near the second threaded wheel. The first magnetic block is eccentrically located on the turntable, so that the first magnetic block is aligned with the second or third magnetic block after the turntable rotates. A transmission plate that cooperates with the turntable is also provided on the inner wall of the receiving cavity. The transmission plate is slidably connected to the inner wall of the receiving cavity. A second push block is connected to the second connecting rope. When the push block or the second push block enters the receiving cavity, the transmission plate moves and drives the turntable to rotate.

[0019] Furthermore, a second connecting plate is hinged to the top of the transmission plate, and a third connecting plate is hinged to the top of the second connecting plate. One end of the third connecting plate is hinged to the top of the receiving cavity. A mounting bracket is provided on the inner wall of the receiving cavity. The mounting bracket is located on one side of the transmission plate's movement trajectory. A limiting rod is provided on the mounting bracket. A guide rod and a fifth spring are provided on the limiting rod. A guide hole is provided on the mounting bracket. The guide rod passes through the guide hole. One end of the guide rod is provided with an end plate. One end of the fifth spring is fixed to the end plate, and the other end is fixed to the mounting bracket. An inclined groove is provided on the side wall of the limiting rod. A groove corresponding to the limiting rod is provided on the transmission plate. One end of the groove is provided with a through groove corresponding to the limiting rod. A sixth spring is provided at the bottom of the transmission plate.

[0020] Furthermore, a first push rod is provided in the first limiting groove and the second limiting groove respectively. One end of the first push rod protrudes from the first limiting groove or the second limiting groove. A movable cavity is provided on the side wall of the first limiting groove and the second limiting groove. A slider is provided on the first push rod. The slider is located in the movable cavity. A fourth spring is provided on the slider. One end of the fourth spring abuts against the inner wall of the movable cavity. A second push rod is provided on the push block. A second mounting block is provided in the receiving cavity. A third push rod is provided on the second mounting block. The second push rod and the third push rod are respectively located at one end of the first push rod in the first limiting groove and the second limiting groove. When the push block or the second push block enters the receiving cavity, the first push rod moves before the transmission plate.

[0021] The advantages of this invention are: By setting up a movable pushing device, impurities and solid particles generated during the filtration process can be pushed to the discharge port in a timely manner, avoiding the accumulation of filter material on the surface of the filter plate, ensuring a continuous and smooth filtration process, and preventing a decrease in filtration efficiency due to accumulation. There is no need for manual cleaning of accumulated impurities, which greatly improves the continuity and stability of filtration.

[0022] By combining the feeding device with the cleaning function, adhering impurities on the surface of the filter plate and inside the mesh can be cleaned in a timely manner, preventing the protein liquid viscous substances from clogging the mesh. No need to stop the machine for disassembly and cleaning, reducing equipment failures and lowering labor maintenance costs. At the same time, it avoids filtration interruptions caused by mesh clogging, ensuring continuous and stable filtration operations and extending the service life of the equipment.

[0023] The feeding device can accurately push the filtered impurities, avoiding the waste of impurities mixed with protein liquid. At the same time, the cleaning component can reduce protein liquid residue on the surface of the filter plate and inside the mesh, maximizing the recovery of usable protein components, solving the problem of "unrecoverable protein residue and serious waste" in existing equipment, reducing the cost of raw materials and improving resource utilization.

[0024] The overall structure is adaptable to protein solutions with different viscosities and impurity contents. There is no need to replace the entire set of equipment. By simply adjusting the feeding speed and cleaning frequency, it can adapt to the filtration needs of different specifications of protein solutions, solving the defects of existing equipment that are "poorly adaptable and unable to handle multiple protein solutions at the same time". At the same time, it ensures the purity of the filtered protein solution and avoids impurities from affecting subsequent purification processes.

[0025] No complicated manual disassembly and cleaning is required. The integrated feeding and cleaning process reduces manual intervention and the labor intensity of operators. It is suitable for various scenarios such as large-scale production and laboratory purification. At the same time, it avoids damage to the filter plate and mesh during manual cleaning, further improving the practicality and ease of operation of the equipment and enhancing the market competitiveness of the product. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0027] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0028] In the attached diagram: Figure 1 This is a schematic diagram of the structure of a protein filter according to one embodiment of the present invention.

[0029] Figure 2 for Figure 1 A cross-sectional view of the movable plate of the protein filter in the illustrated embodiment.

[0030] Figure 3 for Figure 2 Enlarged view of point A in the image.

[0031] Figure 4 for Figure 1 Overall cross-sectional view of the protein filter in the illustrated embodiment.

[0032] Figure 5 for Figure 4 Enlarged view of point B in the image.

[0033] Figure 6 for Figure 5 Enlarged view of point C in the image.

[0034] Figure 7 for Figure 1 A cross-sectional view of the first and second reels of the protein filter in the illustrated embodiment.

[0035] Figure 8 for Figure 7 Enlarged view of point D in the image.

[0036] Figure 9 for Figure 7 Enlarged view of point E in the image.

[0037] Figure 10 for Figure 1 A cross-sectional view of the receiving cavity of the protein filter in the illustrated embodiment.

[0038] Figure 11 for Figure 10 Enlarged view of point F in the image.

[0039] Figure 12 for Figure 1 A cross-sectional view of the limiting plate of the protein filter in the illustrated embodiment.

[0040] Figure 13 for Figure 12 Enlarged view of point G in the image.

[0041] Figure 14 for Figure 1 A cross-sectional view of the second connecting block of the protein filter in the illustrated embodiment.

[0042] Figure 15 for Figure 14 Enlarged view of point H in the image.

[0043] The meanings of the reference numerals in the figure are as follows: 101. Housing; 102. Side door; 103. Receiving box; 104. Filter plate; 105. Second motor; 106. Receiving cavity; 107. Movable plate; 108. Second protrusion; 109. First mounting block; 110. Brush bristles; 111. First movable groove; 112. Feed inlet; 113. Guide plate; 114. Slide groove; 115. Second connecting rope; 116. First connecting rope; 117. Pushing block; 118. Cam; 119. First protrusion; 120. First spring; 121. End block; 122. 123. First connecting block; 124. First reel; 125. Second reel; 126. Second connecting shaft; 127. Transmission wheel; 128. Turntable; 129. First magnet; 120. Telescopic rod assembly; 1291. Sleeve; 1292. First connecting rod; 1293. Connecting ring; 130. Third connecting shaft; 131. Second connecting plate; 132. Third connecting plate; 133. Second connecting rod; 134. Third push plate; 135. Second push rod; 136. Second mounting block; 137. Movable rod; 138. 139. Third push rod; 140. Second cavity; 141. First push plate; 142. Vent groove; 143. Flip plate; 144. Second spring; 145. Exhaust port; 146. Baffle; 147. Sealing plate; 148. First connecting plate; 149. Second push plate; 150. First push block; 151. Fixing plate; 152. Third protrusion; 153. Third spring; 154. Second push block; 155. Flaring; 156. Fourth push plate; 157. Transmission plate; 158. Sixth spring; 159. Mounting bracket; 160. Limiting rod; 161. Guide rod; 162. End plate; 163. Fifth spring; 164. Guide post; 165. First connecting shaft; 166. Limiting block; 167. Seventh spring; 168. First limiting groove; 169. Second limiting groove; 170. First push rod; 171. Slider; 172. Fourth spring; 173. Second connecting block; 174. First cavity; 175. Guide bar; 176. Fixing groove; 177. Connecting groove; 178. Second magnetic block; 179. Third magnetic block; 170. Movable cavity. Detailed Implementation

[0044] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0045] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0046] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0047] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0048] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0049] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0050] like Figures 1-15 As shown, a protein filter includes a housing 101, a filter plate 104, a receiving box 103, and a feeding device.

[0051] The top of the housing 101 is provided with an inlet 112, and the side wall of the housing 101 is provided with a discharge port. A filter plate 104 is located inside the housing 101 and below the inlet 112 to filter the protein solution. The discharge port is located on one side of the filter plate 104. A receiving box 103 is located at the bottom of the housing 101 to collect the protein solution falling from the filter plate 104. A pushing device is located inside the housing 101 and can move along the surface of the filter plate 104 to push the filtered material on the filter plate 104 to the discharge port. The pushing device is provided with a cleaning component. After pushing the filtered material on the filter plate 104, the pushing device reciprocates on the filter plate 104, and the cleaning component contacts the surface of the filter plate 104 and cleans the mesh on the filter plate 104. The protein solution enters through the inlet 112 and falls onto the filter plate 104. After being filtered through the mesh of filter plate 104, the protein solution drips into the receiving box 103 below for collection, while impurities, solid particles, and other filter materials are trapped on the surface of filter plate 104. After filtration for a period of time, once a certain amount of filter material accumulates on the surface of filter plate 104, the pushing device is activated. It moves out of the receiving cavity 106 and along the surface of filter plate 104 towards the discharge port, pushing the filter material to the discharge port for discharge, preventing filter material accumulation from affecting the filtration area and efficiency. After pushing, the pushing device reciprocates on filter plate 104. At this time, the cleaning component contacts the surface of filter plate 104 to clean the surface of filter plate 104. During the cleaning process, the reciprocating motion of the pushing device can fully cover the surface of filter plate 104, ensuring that every area is effectively cleaned, guaranteeing the smoothness and accuracy of subsequent filtration.

[0052] Furthermore, the feeding device includes a feeding block 117 and a drive assembly. A receiving cavity 106 is provided on the side wall of the housing 101. The drive assembly and the feeding block 117 are respectively located within the receiving cavity 106. The drive assembly can drive the feeding block 117 to move out of the receiving cavity 106 and into the housing 101, and drive the feeding block 117 to reciprocate on the filter plate 104. The drive assembly provides power for the movement of the feeding block 117, enabling it to move flexibly on the filter plate 104 to complete feeding and cleaning operations. When feeding or cleaning is not required, the feeding block 117 can be stored in the receiving cavity 106, avoiding occupying the filtration space within the housing 101 and preventing interference with the normal filtration of the protein solution. The design of the receiving cavity 106 makes the feeding device more compact and the overall layout more rational.

[0053] The pusher block 117 has a first cavity 173. The cleaning assembly includes a movable plate 107 and several bristles 110. The movable plate 107 has multiple through slots, and the bristles 110 pass through the through slots. The inner wall of the first cavity 173 has a first protrusion 119, and the first protrusion 119 has a first spring 120. One end of the first spring 120 has an end block 121. The movable plate 107 has a through hole, and the first spring 120 passes through the through hole. The end block 121 is threadedly connected to a first connecting block 122. The inner wall of the first cavity 173 also has a guide bar 174, and the movable plate 107 has a guide groove that cooperates with the guide bar 174. The cooperation between the guide bar 174 and the guide groove provides guidance for the movement of the movable plate 107 in the first cavity 173, ensuring that the movable plate 107 can move up and down stably and smoothly, avoiding deviation or jamming. When the first spring 120 is in its natural state, its elastic force pushes the movable plate 107 upward through the end block 121 and the first connecting block 122, causing the bristles 110 to retract into the first cavity 173. At this time, the bristles 110 do not contact the surface of the filter plate 104 and will not affect the pushing action of the pusher block 117. When it is necessary to clean the filter plate 104, the movable plate 107 moves downward against the elastic force of the first spring 120 under external force, the guide groove slides along the guide bar 174, and the bristles 110 extend from the through groove and contact the surface of the filter plate 104. With the reciprocating movement of the pusher block 117, the bristles 110 can clean the surface of the filter plate 104. The threaded connection between the end block 121 and the first connecting block 122 facilitates the replacement of bristles 110 of different lengths or hardness according to actual cleaning needs, and also facilitates the disassembly, maintenance and cleaning of the bristles 110. The surface of the filter plate 104 is cleaned by the brush bristles 110. At the same time, the brush bristles 110 can penetrate into the mesh to remove the fine sticky impurities adsorbed in the mesh, thus achieving simultaneous cleaning of the surface of the filter plate 104 and the mesh, ensuring that the filtration performance of the filter plate 104 is quickly restored.

[0054] The movable plate 107 is provided with a second protrusion 108, the second protrusion 108 is provided with a second cavity 139, the bottom of the second cavity 139 is provided with a plurality of first movable grooves 111 communicating with the through groove, the first movable groove 111 is provided with a first mounting block 109, the bristles 110 are connected to the first mounting block 109, and the first mounting block 109 can move along the inner wall of the first movable groove 111.

[0055] A cam 118 is provided inside the first cavity 173. A movable plate 107 is located below the cam 118. A first connecting plate 147 is provided on the movable plate 107, and the first connecting plate 147 is arranged perpendicular to the surface of the movable plate 107. The height of the first connecting plate 147 is greater than the height of the second protrusion 108. When the cam 118 rotates, it contacts the top of the first connecting plate 147 to push the movable plate 107 to move towards the bottom of the first cavity 173. A first motor is provided on the side wall of the pusher block 117. The output shaft of the first motor is connected to the cam 118. A slide groove 114 for the first motor to move is provided on the side wall of the housing 101.

[0056] The second cavity 139 is provided with a first push plate 140, which has a vent groove 141. A second spring 143 and a flap 142 are located at the bottom of the first push plate 140. One side of the flap 142 is rotatably connected to the bottom of the first push plate 140. When the flap 142 is parallel to the bottom surface of the first push plate 140, it covers the vent groove 141. A second push plate 148 is slidably connected to a first connecting plate 147. A first push block 149 is located at the bottom of the second push plate 148 and abuts against the first push plate 140. The side wall of the second cavity 139 is provided with an exhaust port 144. The exhaust port 144 is provided with a baffle 145 and a sealing plate 146. The sealing plate 146 is made of rubber. One end of the sealing plate 146 is rotatably connected to the inner wall of the exhaust port 144, and the other end abuts against the baffle 145, thereby sealing the exhaust port 144.

[0057] When the pusher block 117 reciprocates on the filter plate 104, the first motor drives the cam 118 to rotate. When the protruding part of the cam 118 contacts the top of the first connecting plate 147, it pushes the first connecting plate 147 to drive the movable plate 107 to move downward against the elastic force of the first spring 120, so that the bristles 110 extend out of the through groove and contact the surface of the filter plate 104 to clean the surface of the filter plate 104. As the cam 118 continues to rotate, the protruding part of the cam 118 contacts the second push plate 148, pushing the second push plate 148 to move. The first push block 149 abuts against the first push plate 140, pushing the first push plate 140 to move towards the bottom of the second cavity 139. The first push plate 140 pushes the air in the second cavity 139 into the first movable groove 111. The first mounting block 109 of the brush bristles 110 above the mesh of the filter plate 104 moves towards the bottom of the first movable groove 111, so that the brush bristles 110 are inserted into the mesh of the filter plate 104 to clean the filter plate 104. The brush bristles 110 that are offset from the mesh of the filter plate 104 abut against the surface of the filter plate 104, so that the brush bristles 110 cannot move downward. At this time, the excess air in the second cavity 139 squeezes the sealing plate 146, pushing the sealing plate 146 away from the baffle 145. The exhaust port 144 is connected to the outside to discharge the excess air in the second cavity 139. After the protruding part of the cam 118 separates from the second push plate 148, the first push plate 140 moves upward under the elastic force of the second spring 143. The second push plate 148 moves upward and resets as the first push plate 140 resets. When the first push plate 140 resets, outside air pushes the flap 142 through the through slot and enters the second cavity 139, replenishing the air in the second cavity 139. Furthermore, since the first motor and the drive assembly are two independent drive sources, the position of the bristles 110 extending when the pusher block 117 reciprocates on the filter plate 104 is not fixed. This allows the bristles 110 to contact the surface and mesh of the filter plate 104 randomly, avoiding the problem of certain areas not being effectively cleaned for a long time due to a fixed cleaning path. This allows for a more comprehensive removal of residual impurities and blockages on the filter plate 104, further improving the cleaning effect.

[0058] Furthermore, a fixed plate 150 is slidably connected to the first push plate 140, and a fixed groove 175 corresponding to the fixed plate 150 is provided on the first connecting plate 147. The fixed plate 150 is provided with a third protrusion 151 and a third spring 152. One end of the third spring 152 abuts against the first push block 149. The fixed plate 150 is also provided with a second movable groove for the third protrusion 151 to move. The third protrusion 151 passes through the second movable groove so that one end of the third protrusion 151 is at the top of the second push plate 148, and the rotation direction of the cam 118 corresponds to the movement direction of the fixed plate 150. When the cam 118 rotates, it first contacts the first connecting plate 147 and pushes the movable plate 107 downward. When the cam 118 continues to rotate, its protruding part moves to the top of the second push plate 148 and then contacts the top side wall of the third protrusion 151. During the rotation, the cam 118 pushes the third protrusion 151 to move, so that the fixing plate 150 is dislodged from the fixing groove 175, releasing the fixation of the second push plate 148. This allows the second push plate 148 to move relative to the first connecting plate 147 during the subsequent rotation of the cam 118, pushing the air in the second cavity 139 into the first movable groove 111. By using the fixed plate 150, the position of the cam 118 can be limited before it contacts the second push plate 148, ensuring that the movable plate 107 moves down before the bristles 110 insert into the mesh, so that the bristles 110 first contact the surface of the filter plate 104 to form a preliminary cleaning, avoiding the omission of surface impurities due to the bristles 110 directly inserting into the mesh; after the cam 118 pushes the third protrusion 151 to disengage the fixed plate 150 from the fixed groove 175, the second push plate 148 begins to move and pushes the first push plate 140, so that the bristles 110 can further penetrate into the mesh to clean the surface, forming a progressive cleaning logic of "surface cleaning - deep mesh cleaning", which improves the level and thoroughness of cleaning.

[0059] Furthermore, the drive assembly includes a transmission wheel 126, a first spool 123, and a second spool 124. A first connecting rope 116 is wound around the first spool 123, and one end of the first connecting rope 116 is fixed to the pusher block 117. A second connecting rope 115 is wound around the second spool 124, and one end of the second connecting rope 115 is fixed to the side wall of the pusher block 117. The first connecting rope 116 and the second connecting rope 115 are respectively connected to the two side walls of the pusher block 117. The second connecting rope 115 passes through one end of the filter plate 104. The first spool 123 and the second spool 124 are connected by a telescopic rod assembly 129. A second connecting block 172 is provided on the inner wall of the receiving cavity 106. A first connecting shaft 164 is provided on the side wall of 29, and a connecting groove 176 corresponding to the first connecting shaft 164 is provided on the second connecting block 172; a third movable groove is provided on the first connecting shaft 164, and a limiting block 165 is movably connected in the third movable groove. A seventh spring 166 is provided on the limiting block 165. One end of the seventh spring 166 is fixed to the side wall of the limiting block 165, and the other end is fixed to the inner wall of the third movable groove. A first limiting groove 167 and a second limiting groove 168 corresponding to the limiting block 165 are provided on the side wall of the connecting groove 176. After the first connecting shaft 164 drives the telescopic rod assembly 129 to rotate, the first thread pulley 123 or the second thread pulley 124 forms a transmission engagement with the transmission wheel 126. Specifically, there are two first thread reels 123 and two second thread reels 124. The two first thread reels 123 are connected by a second connecting shaft 125, and the two second thread reels 124 are connected by a third connecting shaft 130. The telescopic rod assembly 129 includes a sleeve 1291 and two first connecting rods 1292. There are two first connecting rods 1292, which are respectively inserted into both ends of the sleeve 1291. One end of each of the two first connecting rods 1292 is provided with a connecting ring 1293. The connecting rings 1293 on the two first connecting rods 1292 are respectively sleeved on the second connecting shaft 125 and the third connecting shaft 130. A second motor 105 is provided on the side wall of the receiving cavity 106. The output shaft of the second motor 105 is connected to the transmission wheel 126. When the pusher block 117 pushes the impurities on the filter plate 104, the second reel 124 approaches the transmission wheel 126 and meshes with the transmission wheel 126 to form a transmission. The second motor 105 drives the transmission wheel 126 to rotate, which drives the second reel 124 to rotate synchronously. The second connecting rope 115 gradually tightens and pulls the pusher block 117 out of the receiving cavity 106 and slides smoothly along the surface of the filter plate 104 towards the discharge port, thus concentrating and pushing the filtered material to the discharge port for discharge.After the push is completed, when cleaning is required, the telescopic rod assembly 129 rotates, the second spool 124 disengages from the transmission wheel 126, and the first spool 123 engages with the transmission wheel 126. The transmission wheel 126 drives the first spool 123 to rotate, and the first connecting rope 116 pulls the pusher block 117 towards the receiving cavity 106. After the pusher block 117 moves into the receiving cavity 106, the telescopic rod assembly 129 rotates again, causing the second spool 124 to re-engage with the transmission wheel 126, thereby driving the pusher block 117 to reciprocate on the filter plate 104. At the same time, the first motor also drives the cam 118 to rotate, causing the bristles 110 to extend and cooperate with the reciprocating movement of the pusher block 117 to clean the filter plate 104.

[0060] A turntable 127 is rotatably connected to the inner wall of the receiving cavity 106. A first magnetic block 128 is provided on the turntable 127. A second magnetic block 177 and a third magnetic block 178 are provided on the telescopic rod assembly 129. The second magnetic block 177 and the third magnetic block 178 are located on one side wall of the telescopic rod assembly 129 facing the turntable 127. The second magnetic block 177 is positioned near the first reel 123, and the third magnetic block 178 is positioned near the second reel 124. The first magnetic block 128 is eccentrically positioned on the turntable 127, so that after the turntable 127 rotates, the first magnetic block 128... The magnetic block 128 is aligned with the second magnetic block 177 or the third magnetic block 178. The magnetic force of the first magnetic block 128 attracts the magnetic force of the second magnetic block 177 or the third magnetic block 178. The inner wall of the receiving cavity 106 is also provided with a transmission plate 156 that is in transmission cooperation with the turntable 127. The transmission plate 156 is slidably connected to the inner wall of the receiving cavity 106. The second connecting rope 115 is connected to the second push block 153. When the push block 117 or the second push block 153 enters the receiving cavity 106, the transmission plate 156 moves and drives the turntable 127 to rotate.

[0061] Specifically, a second connecting plate 131 is hinged to the top of the transmission plate 156, and a third connecting plate 132 is hinged to the top of the second connecting plate 131. One end of the third connecting plate 132 is hinged to the top of the receiving cavity 106. A mounting bracket 158 ​​is provided on the inner wall of the receiving cavity 106. The mounting bracket 158 ​​is located on one side of the movement trajectory of the transmission plate 156. A limiting rod 159 is provided on the mounting bracket 158, and a guide rod 160 and a fifth spring 162 are provided on the limiting rod 159. The mounting bracket 158 ​​has a guide hole, and the guide rod 160 passes through the guide hole. One end of the guide rod 160 has an end plate 161. One end of the fifth spring 162 is fixed to the end plate 161, and the other end is fixed to the mounting bracket 158. The side wall of the limiting rod 159 has an inclined groove. The transmission plate 156 has a groove corresponding to the limiting rod 159. One end of the groove has a through groove corresponding to the limiting rod 159. The bottom of the transmission plate 156 has a sixth spring 157.

[0062] The pusher block 117 is provided with a second connecting rod 133, and one end of the second connecting rod 133 is provided with a third push plate 134, which is located on one side of the second connecting plate 131 and the third connecting plate 132. The receiving cavity 106 is provided with a second mounting block 136, which is provided with a through cavity. A movable rod 137 passes through the through cavity. One end of the through cavity is provided with a flared opening 154 corresponding to the second pusher block 153, so that the second pusher block 153 can accurately enter the through cavity through the flared opening 154. The movable rod 137 has a hollow structure. The second connecting rope 115 passes through the movable rod 137 and is wound around the second spool 124. One end of the movable rod 137 is provided with a fourth push plate 155, which is located on one side of the end plate 161. The inner wall of the receiving cavity 106 is also provided with a guide post 163. The fourth push plate 155 is provided with a guide hole, and the guide post 163 passes through the guide hole to guide the fourth push plate 155, so that the fourth push plate 155 moves parallel to the end plate 161.

[0063] First push rods 169 are respectively provided in the first limiting groove 167 and the second limiting groove 168. One end of the first push rod 169 extends out of the first limiting groove 167 or the second limiting groove 168. Movable cavities 179 are provided on the side walls of the first limiting groove 167 and the second limiting groove 168. A slider 170 is provided on the first push rod 169. The slider 170 is located in the movable cavity 179. A fourth spring 171 is provided on the slider 170. One end of the fourth spring 171 abuts against the inner wall of the movable cavity 179. A second push rod 135 is provided on the push block 117. A third push rod 138 is provided on the movable rod 137. The second push rod 135 and the third push rod 138 are respectively located at one end of the first push rod 169 in the first limiting groove 167 and the second limiting groove 168. When the push block 117 or the second push block 153 enters the receiving cavity 106, the first push rod 169 moves before the transmission plate 156.

[0064] When the pusher block 117 is inside the receiving cavity 106, the second spool 124 and the drive wheel 126 form a transmission engagement, and the first spool 123 disengages from the drive wheel 126. At this time, the limiting block 165 on the first connecting shaft 164 engages in the second limiting groove 168, fixing the position of the telescopic rod assembly 129 and ensuring a stable meshing state between the second spool 124 and the drive wheel 126. When it is necessary to push the filter material, the second motor 105 starts, and the drive wheel 126 drives the second spool 124 to rotate. The second connecting rope 115 gradually winds onto the second spool 124, and the pusher block 117 moves smoothly out of the receiving cavity 106 under the traction of the second connecting rope 115. At this time, the second pusher block 153 moves closer to the receiving cavity 106 as the second connecting rope 115 moves. After the pusher block 117 completes its pushing action, the second pusher block 153 enters the receiving cavity 106. The second pusher block 153 enters the through cavity through the flare 154, pushing the movable rod 137 to move. The fourth pusher plate 155 pushes the limiting rod 159 to move. After the limiting rod 159 moves out of the through groove and into the recess, the sixth spring 157 pushes the transmission plate 156 to move upward. When the transmission plate 156 moves, it drives the turntable 127 to rotate. The turntable 127 drives the first magnetic block 128 to rotate, causing the first magnetic block 128 to rotate to one side of the second magnetic block 177. While the movable rod 137 moves, it also drives the third pusher 138 to move together. The third pusher 138 pushes the first pusher 169 in the second limiting groove 168 to move. 169 pushes the limiting block 165 out of the second limiting groove 168. After the first connecting shaft 164 is no longer fixed, it rotates under the magnetic force of the first magnetic block 128 and the second magnetic block 177. The first thread wheel 123 moves closer to the transmission wheel 126 and meshes with the transmission wheel 126. The second thread wheel 124 moves away from the transmission wheel 126 and disengages from the transmission wheel 126. The limiting block 165 rotates to the position of the first limiting groove 167 and inserts into the first limiting groove 167 to fix the first connecting shaft 164, maintaining the transmission engagement state of the first thread wheel 123 and the transmission wheel 126. The transmission wheel 126 continues to rotate, driving the first thread wheel 123 to rotate. The first connecting rope 116 gradually winds into the first thread wheel 123, pulling the pusher block 117 to move towards the receiving cavity 106.As the pusher block 117 enters the receiving cavity 106, the third pusher plate 134 pushes the second connecting plate 131 and the third connecting plate 132, thereby driving the transmission plate 156 to move downward. The sixth spring 157 is compressed. When the transmission plate 156 moves, it drives the turntable 127 to rotate in the opposite direction, causing the first magnetic block 128 to rotate to the side of the third magnetic block 178. During this process, the second push rod 135 on the pusher block 117 pushes the first push rod 169 in the first limiting groove 167. The first push rod 169 pushes the limiting block 165 out of the first limiting groove 167. Under the action of magnetic force, the telescopic rod assembly 129 rotates, the second thread wheel 124 re-engages with the transmission wheel 126, and the limiting block 165 is inserted into the second limiting groove 168, completing the reset and preparing for the next pusher and cleaning cycle. This mechanism, which triggers the switching between the transmission wheel 126 and the first thread wheel 123 and the second thread wheel 124 respectively through the second pusher block 153 and the pusher block 117, combined with the magnetic block's adsorption positioning and the locking and fixing of the limit block 165, ensures the precise and stable switching of the pusher block 117 between the two working modes of pushing impurities and cleaning the filter plate 104, thus realizing automated continuous operation.

[0065] A guide plate 113 is also provided on the inner wall of the housing 101. The guide plate 113 is inclined and positioned below the filter plate 104 to guide the protein solution falling from the filter plate 104 into the receiving box 103. A side door 102 is detachably connected to the side wall of the housing 101. The side door 102 has a discharge port corresponding to the receiving box 103, which facilitates the removal of the receiving box 103 from the housing 101 for subsequent processing or transfer of the collected protein solution. The side door 102 is fixed to the housing 101 by buckles or bolts. The side door 102 facilitates the inspection and cleaning of components such as the guide plate 113 and filter plate 104 inside the housing 101, ensuring the hygiene of the equipment interior and meeting the clean environment requirements during protein filtration.

[0066] As a preferred embodiment, the filter plate 104 can be tilted, with one end higher than the other, and the discharge port located at the lower end of the filter plate 104. When the pusher block 117 pushes impurities toward the discharge port, the tilted filter plate 104 can assist the impurities in sliding down under gravity, reducing the pushing force required by the pusher block 117 and lowering the energy consumption of the drive component. Simultaneously, when the protein solution flows on the surface of the filter plate 104, the tilted arrangement can prolong its residence time on the filter plate 104, increasing the contact area with the filter medium and thus improving filtration efficiency. The tilt angle of the filter plate 104 can be adjusted according to the viscosity and impurity content of the protein solution. For example, for protein solutions with high viscosity, the tilt angle can be appropriately increased to accelerate the flow rate and prevent the protein solution from accumulating on the surface of the filter plate 104; while for cases with a large amount of impurities, the tilt angle can be decreased to ensure that the impurities are fully pushed to the discharge port by the pusher block 117. In addition, the inclined filter plate 104 allows the small amount of residual liquid generated during the filtration process to flow naturally to the feed plate 113 under the action of gravity, reducing the liquid residue on the surface of the filter plate 104 and further improving the cleanliness of the equipment and the recovery rate of the protein liquid.

[0067] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A protein filter, comprising: The box body (101) has a feed inlet (112) on the top and a discharge outlet on the side wall of the box body (101). A filter plate (104) is disposed inside the housing (101) to filter the protein solution, and the discharge port is located on one side of the filter plate (104); A receiving box (103) is provided at the bottom of the box (101) to receive protein liquid falling from the filter plate (104); Its features are: The protein filter also includes: A feeding device is provided inside the housing (101) and can move along the surface of the filter plate (104) to push the filter material on the filter plate (104) to the discharge port. The pushing device is equipped with a cleaning component. After pushing the filter material on the filter plate (104), the pushing device moves back and forth on the filter plate (104). The cleaning component contacts the surface of the filter plate (104) and cleans the mesh on the filter plate (104). The pushing device includes a pushing block (117) and a driving assembly. The side wall of the housing (101) is provided with a receiving cavity (106). The driving assembly and the pushing block (117) are respectively located in the receiving cavity (106). The driving assembly can drive the pushing block (117) to move out of the receiving cavity (106) and into the housing (101), and drive the pushing block (117) to reciprocate on the filter plate (104). The cleaning assembly includes a movable plate (107) and a number of bristles (110). When the pushing block (117) moves on the filter plate (104), the movable plate (107) drives the bristles (110) to intermittently contact the filter plate (104) to clean the mesh of the filter plate (104).

2. The protein filter according to claim 1, characterized in that: The pusher block (117) is provided with a first cavity (173), the movable plate (107) is provided with multiple through slots, and the bristles (110) pass through the through slots; the inner wall of the first cavity (173) is provided with a first protrusion (119), the first protrusion (119) is provided with a first spring (120), one end of the first spring (120) is provided with an end block (121), the movable plate (107) is provided with a through hole, the first spring (120) passes through the through hole, and the end block (121) is threaded with a first connecting block (122); the inner wall of the first cavity (173) is also provided with a guide strip (174), and the movable plate (107) is provided with a guide groove that cooperates with the guide strip (174).

3. The protein filter according to claim 2, characterized in that: The movable plate (107) is provided with a second protrusion (108), the second protrusion (108) is provided with a second cavity (139), the bottom of the second cavity (139) is provided with a plurality of first movable grooves (111) communicating with the through groove, the first movable groove (111) is provided with a first mounting block (109), the brush bristles (110) are connected to the first mounting block (109), and the first mounting block (109) can move along the inner wall of the first movable groove (111).

4. The protein filter according to claim 3, characterized in that: A cam (118) is provided in the first cavity (173), and the movable plate (107) is located below the cam (118). A first connecting plate (147) is provided on the movable plate (107). The first connecting plate (147) is arranged perpendicular to the surface of the movable plate (107). The height of the first connecting plate (147) is greater than the height of the second protrusion (108). When the cam (118) rotates, it contacts the top of the first connecting plate (147) to push the movable plate (107) to move towards the bottom of the first cavity (173).

5. The protein filter according to claim 4, characterized in that: The second cavity (139) is provided with a first push plate (140), the first push plate (140) is provided with a ventilation groove (141), the bottom of the first push plate (140) is provided with a second spring (143) and a flap (142), one side of the flap (142) is rotatably connected to the bottom of the first push plate (140), when the flap (142) is parallel to the bottom surface of the first push plate (140), the flap (142) covers the ventilation groove (141); the first connecting plate (147) is slidably connected with a second push plate (148), the bottom of the second push plate (148) is provided with a first push block (149), and the first push block (149) abuts against the first push plate (140).

6. The protein filter according to claim 5, characterized in that: A fixed plate (150) is slidably connected to the first push plate (140). The first connecting plate (147) is provided with a fixed groove (175) corresponding to the fixed plate (150). The fixed plate (150) is provided with a third protrusion (151) and a third spring (152). One end of the third spring (152) abuts against the first push block (149). The fixed plate (150) is also provided with a second movable groove for the third protrusion (151) to move. The third protrusion (151) passes through the second movable groove so that one end of the third protrusion (151) is at the top of the second push plate (148), and the rotation direction of the cam (118) corresponds to the movement direction of the fixed plate (150).

7. The protein filter according to claim 1, characterized in that: The drive assembly includes a transmission wheel (126), a first reel (123), and a second reel (124). A first connecting rope (116) is wound around the first reel (123), one end of which is fixed to the pusher block (117). A second connecting rope (115) is wound around the second reel (124), one end of which is fixed to the side wall of the pusher block (117). The first connecting rope (116) and the second connecting rope (115) are respectively connected to the side walls on both sides of the pusher block (117). The first reel (123) and the second reel (124) are connected by a telescopic rod assembly (129). The receiving cavity ( The inner wall of the telescopic rod assembly (129) is provided with a second connecting block (172), and the side wall of the telescopic rod assembly (129) is provided with a first connecting shaft (164). The second connecting block (172) is provided with a connecting groove (176) corresponding to the first connecting shaft (164). A limiting block (165) is movably connected to the first connecting shaft (164). The side wall of the connecting groove (176) is provided with a first limiting groove (167) and a second limiting groove (168) corresponding to the limiting block (165). After the first connecting shaft (164) drives the telescopic rod assembly (129) to rotate, the first thread wheel (123) or the second thread wheel (124) forms a transmission engagement with the transmission wheel (126).

8. The protein filter according to claim 7, characterized in that: A turntable (127) is rotatably connected to the inner wall of the receiving cavity (106). A first magnetic block (128) is provided on the turntable (127). A second magnetic block (177) and a third magnetic block (178) are provided on the telescopic rod assembly (129). The second magnetic block (177) and the third magnetic block (178) are disposed on the side wall of the telescopic rod assembly (129) facing the turntable (127). The second magnetic block (177) is disposed near the first reel (123), and the third magnetic block (178) is disposed near the second reel (124). The first magnetic block (128) is eccentrically disposed on the turntable (127). 27) On the turntable (127), after the turntable (127) rotates, the first magnetic block (128) is aligned with the second magnetic block (177) or the third magnetic block (178); the inner wall of the receiving cavity (106) is also provided with a transmission plate (156) that is in transmission cooperation with the turntable (127). The transmission plate (156) is slidably connected to the inner wall of the receiving cavity (106). The second connecting rope (115) is connected to the second push block (153). When the push block (117) or the second push block (153) enters the receiving cavity (106), the transmission plate (156) moves and drives the turntable (127) to rotate.

9. The protein filter according to claim 8, characterized in that: The top end of the transmission plate (156) is hinged to a second connecting plate (131), and the top end of the second connecting plate (131) is hinged to a third connecting plate (132). One end of the third connecting plate (132) is hinged to the top of the receiving cavity (106). A mounting bracket (158) is provided on the inner wall of the receiving cavity (106). The mounting bracket (158) is located on one side of the movement trajectory of the transmission plate (156). A limiting rod (159) is provided on the mounting bracket (158), and a guide rod (160) and a fifth spring (162) are provided on the limiting rod (159). The mounting bracket (158) is provided with a guide hole, and the guide rod (160) passes through the guide hole. One end of the guide rod (160) is provided with an end plate (161). One end of the fifth spring (162) is fixed to the end plate (161), and the other end is fixed to the mounting bracket (158). The side wall of the limiting rod (159) is provided with a slanted groove. The transmission plate (156) is provided with a groove corresponding to the limiting rod (159). One end of the groove is provided with a through groove corresponding to the limiting rod (159). The bottom of the transmission plate (156) is provided with a sixth spring (157).

10. The protein filter according to claim 9, characterized in that: A first push rod (169) is provided in the first limiting groove (167) and the second limiting groove (168), respectively. One end of the first push rod (169) extends out from the first limiting groove (167) or the second limiting groove (168). A movable cavity (179) is provided on the side wall of the first limiting groove (167) and the second limiting groove (168). A slider (170) is provided on the first push rod (169). The slider (170) is located in the movable cavity (179). A fourth spring (171) is provided on the slider (170). One end of the fourth spring (171) abuts against the movable cavity. On the inner wall of (179); the pusher block (117) is provided with a second push rod (135), the receiving cavity (106) is provided with a second mounting block (136), the second mounting block (136) is provided with a third push rod (138), the second push rod (135) and the third push rod (138) are respectively located at one end of the first push rod (169) of the first limiting groove (167) and the second limiting groove (168). When the pusher block (117) or the second pusher block (153) enters the receiving cavity (106), the first push rod (169) moves before the transmission plate (156).

Images