White bean grinding sand material filter pressing device

Abstract

The invention relates to the technical field of filtering equipment, discloses a white bean grinding sand material filter pressing device, and solves the problems that when a conventional vibrating screen separates sand materials, bean dregs can cover the middle area of a second screen mesh after being accumulated for a long time, the effective filtering performance of the second screen mesh is affected, and the vibrating screen is inconvenient to operate continuously. The inner barrel is matched with the rotating disc, so that the unfolded residue taking leaves capture sand materials containing high-concentration bean dregs on the edge of the filtering mechanism, then the residue taking leaves continue to rotate along with the rotating disc, the captured sand materials are conveyed into the inner barrel, soybean milk and the bean dregs are separated, and the sand materials containing the high-concentration bean dregs on the upper side of the filtering mechanism are discharged; the content of bean dregs covering the upper surface of the filtering mechanism is reduced, excessive accumulation of the bean dregs on the upper side of the filtering mechanism is avoided, the filtering efficiency of the filtering mechanism is improved, and the continuous operation requirement of the vibrating screen is also met.

Description

Technical Field

[0001] The present invention relates to the technical field of filtering equipment, and specifically relates to a pressure filter device for white bean grinding sand material. Background Art

[0002] The white bean boiling and sand pressing production line includes six links: feeding, conveying, boiling, grinding, sand washing, and dehydration. Among them, the grinding and sand washing links refer to pressing and grinding the cooked beans into sand liquid slurry (hereinafter referred to as sand material, which is mainly a mixture of soy milk and bean dregs), and then filtering the sand material to separate the soy milk and bean dregs. The pressing and separation of soy milk and bean dregs are completed by a pressure filter device. The pressure filter device includes a sand grinder and a vibrating screen. During operation, the sand grinder first presses and crushes the cooked beans to form sand material, and the sand material is then filtered through the vibrating screen to separate the soy milk and bean dregs.

[0003] As Figure 1 shown, the vibrating screen is provided with a plurality of vibrating motors circumferentially, and by synergistically controlling the vibration frequencies of the plurality of vibrating motors (the plurality of vibrating motors are synergistically controlled by a plc), while the material is vibrating on the screen mesh inside the screen cylinder, it also makes a centrifugal motion, which is convenient for achieving better dispersion and screening effects during the screening process.

[0004] However, as Figure 2 shown, when using the vibrating screen to filter the sand material, bean dregs will gradually accumulate on the surface of the screen mesh. Although the action of centrifugal force can disperse the bean dregs to the periphery of the screen mesh, thus maintaining the filtering efficiency in the middle of the screen mesh to a certain extent, with the passage of time, the continuous accumulation of bean dregs will still cause the middle area of the screen mesh to be covered, resulting in the gradual deterioration of the filtering efficiency of the screen mesh. During the continuous operation of the vibrating screen, the bean dregs continuously accumulating on the surface of the screen mesh need to be cleaned regularly to ensure that the screen mesh maintains effective filtering performance. However, this need for regular cleaning undoubtedly brings a lot of inconvenience to the operation. It not only increases the frequency of manual intervention, but also causes frequent interruptions in the production process, greatly reducing the production efficiency and seriously affecting the coherence and fluency of the entire operation process. Summary of the Invention

[0005] The purpose of the present invention is to provide a pressure filter device for white bean grinding sand material, which solves the problem that during the separation of sand material by a conventional vibrating screen, bean dregs will cover the middle area of the second screen mesh after long-term accumulation, affecting the effective filtering performance of the second screen mesh and causing inconvenience for the continuous operation of the vibrating screen.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A pressure filter device for white bean grinding sand material, including a vibrating screen, the vibrating screen has a screen cylinder vibrating in a "helical wave", an outlet cover is arranged on the outer wall of the screen cylinder, two screen cylinders are arranged up and down, and a filtering mechanism is assembled between the two screen cylinders; A slag removal mechanism is assembled on the outer surface of the upper sieve cylinder. The slag removal mechanism includes an assembly cover. A turntable is rotatably assembled inside the assembly cover. A plurality of slag removal blades are circumferentially arranged on the side surface of the turntable. When the slag removal blades rotate with the turntable, they pass through the upper side of the edge of the filtering mechanism. When the slag removal blades leave the inner side of the assembly cover, they expand outwards, and the expanded slag blades are used to capture the sand material containing high-concentration soybean dregs at the edge of the filtering mechanism. A pressing mechanism is assembled on the upper side of the slag removal mechanism. The pressing mechanism includes an inner cylinder docked on the upper side of the assembly cover. A conveying and squeezing assembly is arranged inside the inner cylinder. An outer cylinder is sleeved outside the inner cylinder. A driving mechanism is arranged on one side of the sieve cylinder, and is used to drive the conveying and squeezing assembly and the turntable to rotate for operation.

[0007] As a further description of the above technical solution: The assembly cover is fixedly assembled on the outer surface of the sieve cylinder. A hinge cavity is opened inside the assembly cover. The turntable is rotatably assembled inside the hinge cavity through a second rotating shaft. The second rotating shaft rotates through to the lower surface of the assembly cover, and the hinge cavity communicates with the inside of the sieve cylinder.

[0008] As a further description of the above technical solution: The slag removal blade is rotatably assembled on the side surface of the turntable through a third rotating shaft. A limiting rod is fixedly connected to the side surface of the third rotating shaft. A second tension spring is arranged on one side of the limiting rod. A limiting cavity is opened inside the turntable. The limiting rod moves inside the limiting cavity. One end of the second tension spring is fixedly connected to the inner wall of the limiting cavity. The limiting rod is pulled by the second tension spring and cooperates with the limiting cavity, so that the slag removal blade rotates outwards around the third rotating shaft and expands to the maximum angle.

[0009] As a further description of the above technical solution: When the slag removal blade rotates with the turntable and enters the inner side of the hinge cavity, the end of the slag removal blade far from the turntable slides and abuts against the side wall of the hinge cavity, so that the slag removal blade rotates around the third rotating shaft and fits against the side surface of the turntable. The curvature of the turntable is adapted to the arc surface of the slag removal blade.

[0010] As a further description of the above technical solution: The side of the slag removal blade that fits the turntable is provided with an upward inclined surface.

[0011] As a further description of the above technical solution: The conveying and squeezing assembly includes a rotating cylinder rotatably assembled inside the inner cylinder. A spiral blade is arranged on the side surface of the rotating cylinder. A first rotating shaft is coaxially and fixedly connected to the upper side of the rotating cylinder. The first rotating shaft rotates through to the upper surface of the inner cylinder. A plurality of sieve holes are circumferentially opened on the side surface of the inner cylinder. The upper side of the inner cylinder is communicated with the upper discharge cover through a slag discharge hopper.

[0012] As a further description of the above technical solution: The lower side of the outer cylinder is connected with a chassis. A circular groove for assembling the inner cylinder is opened on the surface of the chassis. The circular groove communicates with the hinge cavity. A slurry leakage pipe communicating with the lower discharge cover is arranged on the lower surface of the chassis.

[0013] As a further description of the above technical solution: the driving mechanism includes a driving motor fixedly assembled on the upper surface of the inner cylinder, and the output end of the driving motor is fixedly connected to the rotating shaft 1; the driving mechanism also includes a pulley 2 fixedly connected to the surface of the rotating shaft 1, and a connecting rod rotatably assembled on the outer surface of the outer cylinder, and the upper and lower ends of the connecting rod are respectively provided with a pulley 1 and a pulley 3, the pulley 1 is connected to the pulley 2 through a belt, and the pulley 3 is connected to the pulley 4 fixedly connected to the lower end of the rotating shaft 2 through a belt.

[0014] As a further description of the above technical solution: the filtering mechanism includes a second screen and an outer hoop fixedly connected to the edge of the second screen, the upper surface of the outer hoop has a downwardly concave groove, the groove wall of the outer hoop is provided with an insertion port, and the insertion port cooperates with the turntable to allow the slag removal leaf to enter the groove of the outer hoop.

[0015] As a further description of the above technical solution: the screen 2 is arranged in an "umbrella" shape, a support seat is provided in the middle of the screen 2, and is supported by a lifting and retracting rod fixedly assembled on the vibrating screen, so that the screen 2 bulges upward.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. The spiral flow of sand in the screen drum cooperates with the turntable to make the expanded slag leaf capture the sand containing high concentration of bean dregs on the edge of the filter mechanism. Then the slag leaf continues to rotate with the turntable to transport the captured sand into the inner drum to separate the soy milk and bean dregs. As the sand containing high concentration of bean dregs on the upper side of the filter mechanism is discharged, the content of bean dregs covering the upper surface of the filter mechanism will decrease, avoiding excessive accumulation of bean dregs on the upper side of the filter mechanism, improving the filtration efficiency of the filter mechanism, and meeting the continuous operation requirements of the vibrating screen.

[0017] 2. The outer hoop is set in a groove shape, so that the bean dregs on the two edges of the screen are more easily concentrated at the bottom of the groove of the outer hoop, so as to further increase the concentration of bean dregs when the slag leaves capture the sand material, thereby improving the capture efficiency.

[0018] 3. The second screen is set in an "umbrella" shape. On the one hand, it is conducive to the bean dregs sliding to the edge. On the other hand, when the bean dregs content in the screen cylinder is fixed, the coverage area of the bean dregs on the surface of the "umbrella" screen will be smaller than that of the flat screen. In this way, the filtration efficiency of the second screen is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of an existing vibrating screen; Figure 2 This is a schematic diagram of the working principle of the existing vibrating screen; Figure 3 It is a schematic diagram of the structure of the vibrating screen of the present invention; Figure 4For the present invention Figure 3 A is an enlarged schematic diagram; Figure 5 This is a schematic diagram of the structure of the vibrating screen of the present invention from a top view; Figure 6 For the present invention Figure 5 A magnified schematic diagram of B in the middle; Figure 7 It is a schematic diagram of the pressing mechanism, slag removal mechanism and outer hoop structure of the present invention; Figure 8 This is a schematic diagram of the interior of the pressing mechanism and the slag removal mechanism of the present invention; Figure 9 This is a schematic diagram of the slag removal mechanism and outer hoop structure of the present invention; Figure 10 This is a schematic diagram of the internal structure of the slag removal mechanism of the present invention; Figure 11 This is a schematic diagram of the assembly relationship between the assembly cover and the filter plate of the present invention; Figure 12 This is a schematic diagram of the turntable and slag leaf veneer structure of the present invention; Figure 13 This is a schematic diagram of the assembly relationship between the turntable and the slag removal blade of the present invention; Figure 14 It is a schematic structural diagram of the filtering mechanism of the present invention; Figure 15 It is a cross-sectional schematic diagram of the filtering mechanism of the present invention.

[0020] In the figure: 10, vibrating screen; 11, screen drum; 12, discharge cover; 13, assembly drum; 14, vibration motor; 20. Squeezing mechanism; 21. Inner cylinder; 211. Sieve hole; 22. Slag discharge hopper; 23. Outer cylinder; 231. Chassis; 232. Slurry discharge pipe; 24. Rotating shaft 1; 25. Rotating cylinder; 26. Spiral blade; 30. Slag removal mechanism; 31. Rotary disk; 311. Rotating shaft (2); 312. Limiting chamber; 32. Slag removal blade; 321. Rotating shaft (3); 322. Limiting rod; 323. Tension spring (2); 33. Assembly cover; 331. Hinge chamber; 332. Filter tank; 333. Filter plate; 334. Drain pipe; 40. Driving mechanism; 41. Pulley 1; 42. Connecting rod; 43. Pulley 3; 44. Pulley 2; 50. Filter mechanism; 51. Second screen; 52. Outer hoop; 521. Inlet; 53. Support base; 54. Telescopic rod; 60. Sand; 61. Bean dregs; 62. Soy milk. DETAILED DESCRIPTION

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0022] To further understand the content of the present invention, the present invention will be described in detail in conjunction with the accompanying drawings.

[0023] Combined Figure 1 - Figure 2 , in the prior art, when the vibrating screen 10 vibrates the material on the first screen in the screen cylinder 11 and also makes a centrifugal movement, the working principle is as follows: when multiple vibrating motors 14 operate synchronously at a specific frequency and phase, the exciting forces generated by the multiple vibrating motors 14 form a vibration field in the screen cylinder 11. This vibration field not only causes the first screen to generate high-frequency vibrations in the up and down directions, but also generates a vibration effect of a "helical wave" in the circumferential direction of the screen cylinder 11 (this helical wave vibration is similar to the helical flow of water in a water cup when shaken by hand). The material is affected by this helical wave vibration on the first screen and will generate a helical trajectory of centrifugal movement along the surface of the first screen. While the material is being thrown up and down, it will also move along the helical wave direction of the first screen.

[0024] Combined Figure 1 - Figure 15 , a white bean grinding sand pressing and filtering device includes a vibrating screen 10. The vibrating screen 10 has a screen cylinder 11 that vibrates with a "helical wave", which makes it easy for the material in the screen cylinder 11 to approach the cylinder wall. An outlet cover 12 is arranged on the outer wall of the screen cylinder 11. There are two screen cylinders 11 arranged up and down. The lower screen cylinder 11 is assembled on an assembly cylinder 13. The lower side of the assembly cylinder 13 is supported by multiple springs. A plurality of vibrating motors 14 are arranged circumferentially on the outer side of the assembly cylinder 13. A filtering mechanism 50 is assembled between the two screen cylinders 11. The sand material 60 formed after the cooked beans are ground and crushed by a sand mill is conveyed to the upper side of the filtering mechanism 50. The filtering mechanism 50 separates the sand material 60 into bean dregs 61 and soy milk 62. The bean dregs 61 remain on the upper surface of the filtering mechanism 50, and the soy milk leaks out from the lower side. The outlet cover 12 of the upper screen cylinder 11 is used to discharge the bean dregs 61 on the upper surface of the filtering mechanism 50. The sealing door of this outlet cover 12 is in a closed state during the working state of the vibrating screen 10 to prevent the filtered sand material 60 from being accidentally discharged. In the existing vibrating screen 10 during operation, when the bean dregs 61 accumulated on the upper surface of the filtering mechanism 50 are excessive and affect its filtering efficiency, the countermeasure is: first stop the input of the sand material 60. After all the sand material 60 on the upper side of the filtering mechanism 50 is completely separated, then open the sealing door of the outlet cover 12 and scrape the bean dregs 61 on the upper surface of the filtering mechanism 50 into the outlet cover 12 for discharge. The outlet cover 12 of the lower screen cylinder 11 is used to discharge the soy milk 62. Through the above operation method, the sand material 60 is separated into soy milk 62 and bean dregs 61 for classified collection.

[0025] A slag removal mechanism 30 is assembled on the outer surface of the upper sieve cylinder 11. The slag removal mechanism 30 includes an assembly cover 33. A turntable 31 is rotatably assembled inside the assembly cover 33. A plurality of slag removal blades 32 are circumferentially arranged on the side surface of the turntable 31. When the slag removal blades 32 rotate with the turntable 31, they pass through the upper side of the edge of the filtering mechanism 50. When the slag removal blades 32 leave the inside of the assembly cover 33, they expand outwards, and the sand material 60 containing high-concentration soybean dregs 61 at the edge of the filtering mechanism 50 is captured by the expanded slag removal blades 32; A pressing mechanism 20 is assembled on the upper side of the slag removal mechanism 30. The pressing mechanism 20 includes an inner cylinder 21 docked on the upper side of the assembly cover 33. A conveying and squeezing assembly is provided inside the inner cylinder 21. An outer cylinder 23 is sleeved outside the inner cylinder 21. The movable slag removal blades 32 cooperate with the assembly cover 33 to convey the captured sand material 60 into the inner cylinder 21, and the sand material 60 is further pressed and conveyed by the conveying and squeezing assembly. When the slag removal blades 32 capture the sand material 60, it is necessary to prevent the soybean milk 62 in the sieve cylinder 11 from seeping into the assembly cover 33, so as not to enter the inner cylinder 21 and affect the pressing effect of the conveying and squeezing assembly in the inner cylinder 21 on the sand material 60 containing high-concentration soybean dregs 61; A driving mechanism 40 is provided on one side of the sieve cylinder 11 for driving the conveying and squeezing assembly and the turntable 31 to rotate and operate.

[0026] Specifically, under the action of the "helical wave" vibration field, the sand material 60 in the sieve cylinder 11 makes a helical flow, and its helical direction is opposite to the rotation direction of the turntable 31, so that the expanded slag removal blades 32 can smoothly capture the sand material 60 containing high-concentration soybean dregs 61 at the edge of the filtering mechanism 50. Then, the slag removal blades 32 continue to rotate with the turntable 31, and the captured sand material 60 is conveyed into the inner cylinder 21, so that the conveying and squeezing assembly in the inner cylinder 21 further presses the sand material 60 to separate the soybean milk 62 and the soybean dregs 61, realizing recycling; As the sand material 60 containing high-concentration soybean dregs 61 on the upper side of the filtering mechanism 50 is discharged, the content of the soybean dregs 61 covering the upper surface of the filtering mechanism 50 will decrease, avoiding excessive accumulation of the soybean dregs 61 on the upper side of the filtering mechanism 50, resulting in a poor filtering efficiency of the filtering mechanism 50 or even inability to filter. Further, the vibrating screen 10 can also meet the requirements of continuous operation.

[0027] Combined with Figure 2 - Figure 12 , the assembly cover 33 is fixedly assembled on the outer surface of the sieve cylinder 11. A hinge cavity 331 is opened inside the assembly cover 33. The turntable 31 is rotatably assembled inside the hinge cavity 331 through a second rotating shaft 311. The second rotating shaft 311 rotates through to the lower surface of the assembly cover 33. The hinge cavity 331 communicates with the inside of the sieve cylinder 11, which is convenient to meet the condition that the slag removal blades 32 pass through the upper side of the edge of the filtering mechanism 50 when rotating with the turntable 31.

[0028] As Figure 10As shown in the figure, in order for the slag removal blade 32 to automatically unfold when passing through the edge of the filtering mechanism 50, and to prevent the slag removal blade 32 from colliding with the inlet of the slag removal blade 32 when it just returns to the hinge cavity 331, resulting in damage to the slag removal blade 32, this embodiment adopts the following measures: The slag removal blade 32 is rotationally assembled on the side of the turntable 31 through the third rotating shaft 321. A limiting rod 322 is fixedly connected to the side of the third rotating shaft 321. A second tension spring 323 is provided on one side of the limiting rod 322. A limiting cavity 312 is formed inside the turntable 31. The limiting rod 322 moves inside the limiting cavity 312. One end of the second tension spring 323 is fixedly connected to the inner wall of the limiting cavity 312. The limiting rod 322 is pulled by the second tension spring 323 and cooperates with the limiting cavity 312 to make the slag removal blade 32 rotate outward with the third rotating shaft 321 as the axis and unfold to the maximum angle. By restricting the unfolding angle of the slag removal blade 32, the end of the slag removal blade 32 far from the turntable 31 can smoothly return to the hinge cavity 331, avoiding the collision between the slag removal blade 32 and the inlet of the hinge cavity 331, resulting in damage to the slag removal blade 32 and jamming of the turntable 31.

[0029] As Figure 10 shown, when the slag removal blade 32 rotates with the turntable 31 and enters the inner side of the hinge cavity 331, the end of the slag removal blade 32 far from the turntable 31 slides and abuts against the side wall of the hinge cavity 331. This side wall gradually approaches the side surface of the turntable 31 along the rotation direction of the turntable 31, causing one end of the slag removal blade 32 to rotate with the third rotating shaft 321 as the axis until it fits against the side surface of the turntable 31. The curvature of the turntable 31 is adapted to the arc surface of the slag removal blade 32.

[0030] As Figure 10 shown, specifically, when the turntable 31 rotates and the slag removal blade 32 moves to the inner side of the screen cylinder 11, due to the lack of the constraint of the side wall of the hinge cavity 331 on the slag removal blade 32, the slag removal blade 32 will unfold inside the screen cylinder 11 under the pulling action of the second tension spring 323, forming a storage space for capturing the sand material 60 between the slag removal blade 32 and the turntable 31. Since the bean dregs 61 in the sand material 60 are easily concentrated at the edge of the filtering mechanism 50, the sand material 60 at the edge position of the filtering mechanism 50 has the highest concentration of bean dregs 61. The slag removal blade 32 captures the sand material 60 containing high-concentration bean dregs 61, which is beneficial to reducing the overall content of bean dregs 61 in the screen cylinder 11, preventing the excessive accumulation of bean dregs 61 on the filtering mechanism 50, avoiding affecting the filtering efficiency of the filtering mechanism 50, and enabling the vibrating screen 10 to operate for a long time. As Figure 10As shown, further, after the slag-taking blade 32 rotates into the inner side of the second rotating shaft 311, the storage space between the slag-taking blade 32 and the turntable 31 is closed by the inner wall of the hinge cavity 331, forming a closed space surrounded by four sides. As the slag-taking blade 32 continues to move, the volume of this closed space will gradually decrease, causing the sand material 60 stored in the closed space to be squeezed into the inner cylinder 21. Since the internal pressure will increase during the shrinking process of the closed space, the soy milk 62 in the sieve cylinder 11 is not easily passed through the operation channel of the hinge cavity 331, that is, the space in the hinge cavity 331 participating in the transportation of the sand material 60, which is also Figure 10 the semi-lunar cavity formed between the middle turntable 31 and the assembly cover 33) seeps into the slag-taking blade 32, avoiding affecting the pressing function inside the slag-taking blade 32; As Figure 11 shown, furthermore, due to the gradual reduction in the volume of the above-mentioned closed space, the shrinking space has an extrusion effect on the internal sand material 60. By opening a filter groove 332 on the inner wall of the hinge cavity 331 and installing a filter plate 333 in the filter groove 332, one side of the filter plate 333 serves as the side wall inside the original hinge cavity 331, and the filter plate 333 is rigid. When the sand material 60 in the closed space is gradually squeezed, it will form a preliminary filtration through the filter plate 333, and the squeezed soy milk 62 is collected in the filter groove 332 and exported for collection through the drain pipe 334 connected to the bottom surface of the filter groove 332. In this way, when the separation effect requirement for the sand material 60 in the closed space is not high, the filter plate 333 assembled on the assembly cover 33 itself can complete the separation effect on the sand material 60 conveyed inside, without the need to assemble the pressing mechanism 20 anymore, making the overall device more concise and efficient; It should be noted that: the position where the filter groove 332 is opened should avoid indirectly communicating with the cavity of the sieve cylinder 11 through the closed space, resulting in a large amount of soy milk 62 in the sieve cylinder 11 pouring into the filter groove 332 and further backfilling into multiple adjacent closed spaces and the inner cylinder 21; It should be noted that: considering that there is a joint when the filter plate 333 is connected to the side wall of the hinge cavity 331, which is likely to affect the sliding connection structure between one end of the slag-taking blade 32 and the side wall of the hinge cavity 331, the end of the slag-taking blade 32 is designed with a rounded corner so that one end of the slag-taking blade 32 can smoothly slide over the joint position.

[0031] Combined with Figure 12 , one side of the slag-taking blade 32 attached to the turntable 31 is set as an upward inclined plane, so that when the slag-taking blade 32 is combined with the surface of the turntable 31, it is convenient to squeeze out the sand material 60 between them.

[0032] Combined with Figure 3 - Figure 8The conveying and extrusion assembly includes a rotating drum 25 rotatably assembled on the inner side of the inner drum 21, and a spiral blade 26 is provided on the side of the rotating drum 25. A rotating shaft 24 is coaxially fixedly connected to the upper side of the rotating drum 25. The rotating shaft 24 rotates and penetrates the upper surface of the inner drum 21. A plurality of sieve holes 211 are circumferentially opened on the side of the inner drum 21. The upper side of the inner drum 21 is connected to the discharge cover 12 above through a slag discharge hopper 22.

[0033] The lower side of the outer cylinder 23 is connected to the chassis 231. A circular groove for assembling the inner cylinder 21 is opened on the surface of the chassis 231. The circular groove is connected to the hinge cavity 331. The lower surface of the chassis 231 is provided with a slurry leakage pipe 232 connected to the discharge cover 12 below.

[0034] Specifically, the distance between the upper and lower adjacent blades of the spiral blade 26 gradually decreases from bottom to top; After the slag removing blade 32 squeezes the sand material 60 in the hinge cavity 331 to the inner side of the inner cylinder 21, the spiral blade 26 rotates with the rotating cylinder 25 to transport the sand material 60 upward. During the transportation process, the spiral blade 26 will produce an extrusion effect on the sand material 60, causing the soy milk 62 contained in the sand material 60 to leak out from the sieve hole 211 and flow into the discharge cover 12 below for collecting the soy milk 62 through the leakage pipe 232, while the bean dregs 61 slowly formed as the spiral blade 26 rises are discharged from the slag discharge hopper 22 into the discharge cover 12 above for collecting the bean dregs 61, thereby realizing the further separation of the sand material 60 in the inner cylinder 21 into bean dregs 61 and soy milk 62 for classified recycling.

[0035] Combine Figure 4 、 Figure 8 The driving mechanism 40 includes a driving motor fixedly assembled on the upper surface of the inner cylinder 21, and the output end of the driving motor is fixedly connected to the rotating shaft 24; the driving mechanism 40 also includes a pulley 2 44 fixedly connected to the surface of the rotating shaft 24, and a connecting rod 42 rotatably assembled on the outer surface of the outer cylinder 23, and a pulley 1 41 and a pulley 3 43 are respectively provided at the upper and lower ends of the connecting rod 42. The pulley 1 41 is connected to the pulley 2 44 through a belt, and the pulley 3 43 is connected to the pulley 4 fixedly connected to the lower end of the rotating shaft 2 311 through a belt. While the driving motor controls the rotation of the rotating shaft 24, it also drives the rotating shaft 2 311 to rotate through the transmission relationship, so that the rotation of the rotating drum 25 and the turntable 31 are controlled at the same time, so as to simplify the device.

[0036] Combine Figure 7 - Figure 15 The filtering mechanism 50 includes a screen 51 and an outer hoop 52 fixedly connected to the edge of the screen 51. The upper surface of the outer hoop 52 has a downwardly concave groove, and the groove wall of the outer hoop 52 is provided with an insertion port 521. The insertion port 521 cooperates with the turntable 31 to allow the slag leaf 32 to enter the groove of the outer hoop 52.

[0037] With the arrangement of the outer hoop 52, the bean dregs 61 at the edge of the second sieve 51 are more likely to concentrate at the bottom of the groove of the outer hoop 52, which further improves the concentration of the bean dregs 61 contained when the slag-taking blade 32 captures the sand material 60 and improves the capture efficiency.

[0038] Combined with Figure 14 - Figure 15 , the second sieve 51 is arranged in an "umbrella" shape. A support seat 53 is arranged in the middle of the second sieve 51 and is supported by a telescopic rod 54 fixedly assembled on the vibrating sieve 10, so that the second sieve 51 bulges upward.

[0039] The upper surface of the second sieve 51 in the "umbrella" shape is inclined downward. On the one hand, it is beneficial for the bean dregs 61 to slide toward the edge. On the other hand, when the content of the bean dregs 61 in the sieve cylinder 11 is fixed, the coverage area of the bean dregs 61 on the surface of the "umbrella"-shaped second sieve 51 will be smaller than that of the flat second sieve 51. Thus, it is convenient to improve the filtering efficiency of the second sieve 51.

[0040] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A white bean grinding sand filter press device, comprising a vibrating screen (10), the vibrating screen (10) having a screen cylinder (11) vibrating in a "helical wave", and a discharge hood (12) is arranged on the outer wall of the screen cylinder (11), characterized in that: There are two sieve drums (11) arranged up and down, and a filtering mechanism (50) is assembled between the two sieve drums (11); A slag taking mechanism (30) is assembled on the outer surface of the upper sieve drum (11). The slag taking mechanism (30) includes an assembly cover (33). A turntable (31) is rotatably assembled inside the assembly cover (33). A plurality of slag taking blades (32) are circumferentially arranged on the side surface of the turntable (31). When the slag taking blades (32) rotate with the turntable (31), they pass through the upper side of the edge of the filtering mechanism (50). When the slag taking blades (32) leave the inside of the assembly cover (33), they expand outwards, and the sand materials (60) containing high-concentration soybean dregs (61) at the edge of the filtering mechanism (50) are captured by the expanded slag taking blades (32); A pressing mechanism (20) is assembled above the slag taking mechanism (30). The pressing mechanism (20) includes an inner cylinder (21) docked on the upper side of the assembly cover (33). A conveying and squeezing assembly is arranged inside the inner cylinder (21), and an outer cylinder (23) is sleeved outside the inner cylinder (21); A driving mechanism (40) is arranged on one side of the sieve drum (11) for driving the conveying and squeezing assembly and the turntable (31) to rotate and operate.

2. The pressure filtration device for white bean grinding sand according to claim 1, characterized in that: The assembly cover (33) is fixedly assembled on the outer surface of the sieve drum (11). A hinge cavity (331) is opened inside the assembly cover (33). The turntable (31) is rotatably assembled inside the hinge cavity (331) through a second rotating shaft (311). The second rotating shaft (311) rotates through to the lower surface of the assembly cover (33), and the hinge cavity (331) communicates with the inside of the sieve drum (11).

3. The pressure filtration device for white bean grinding sand according to claim 2, characterized in that: The slag taking blade (32) is rotatably assembled on the side surface of the turntable (31) through a third rotating shaft (321). A limiting rod (322) is fixedly connected to the side surface of the third rotating shaft (321). A second tension spring (323) is arranged on one side of the limiting rod (322). A limiting cavity (312) is opened inside the turntable (31). The limiting rod (322) moves inside the limiting cavity (312). One end of the second tension spring (323) is fixedly connected to the inner wall of the limiting cavity (312). The limiting rod (322) is pulled by the second tension spring (323) and cooperates with the limiting cavity (312) to make the slag taking blade (32) rotate outwards with the third rotating shaft (321) as the axis and expand to the maximum angle.

4. A white bean grinding sand pressing and filtering device according to claim 3, characterized in that: When the slag taking blade (32) rotates into the inside of the hinge cavity (331) with the turntable (31), the end of the slag taking blade (32) far from the turntable (31) slides and abuts against the side wall of the hinge cavity (331), so that the slag taking blade (32) rotates and fits to the side surface of the turntable (31) with the third rotating shaft (321) as the axis. The curvature of the turntable (31) is adapted to the arc surface of the slag taking blade (32).

5. A white bean grinding sand pressing and filtering device according to claim 4, characterized in that: One side of the slag taking blade (32) that fits the turntable (31) is set as an upward inclined plane.

6. The pressure filtration device for white bean grinding sand according to claim 2, characterized in that: The conveying and extruding assembly includes a rotating cylinder (25) rotatably assembled inside the inner cylinder (21). A spiral blade (26) is arranged on the side surface of the rotating cylinder (25). A first rotating shaft (24) is coaxially and fixedly connected to the upper side of the rotating cylinder (25). The first rotating shaft (24) rotatably penetrates through the upper surface of the inner cylinder (21). A plurality of screening holes (211) are circumferentially formed on the side surface of the inner cylinder (21). The upper side of the inner cylinder (21) is communicated with the upper discharge cover (12) through a slag discharge hopper (22).

7. The pressure filtration device for white bean grinding sand according to claim 6, characterized in that: The lower side of the outer cylinder (23) is connected to a chassis (231). A circular groove for assembling the inner cylinder (21) is formed on the surface of the chassis (231). The circular groove is communicated with the hinge cavity (331). A slurry leakage pipe (232) communicating with the lower discharge cover (12) below is arranged on the lower surface of the chassis (231).

8. The pressure filtration device for white bean grinding sand according to claim 6, characterized in that: The driving mechanism (40) includes a driving motor fixedly assembled on the upper surface of the inner cylinder (21). The output end of the driving motor is fixedly connected to the first rotating shaft (24). The driving mechanism (40) further includes a second pulley (44) fixedly connected to the surface of the first rotating shaft (24), and a connecting rod (42) rotatably assembled on the outer surface of the outer cylinder (23). A first pulley (41) and a third pulley (43) are respectively arranged at the upper and lower ends of the connecting rod (42). The first pulley (41) is drivingly connected to the second pulley (44) through a belt. The third pulley (43) is drivingly connected to a fourth pulley fixedly connected to the lower end of the second rotating shaft (311) through a belt.

9. The pressure filtration device for white bean grinding sand according to claim 1, characterized in that: The filtering mechanism (50) includes a second screen (51) and an outer hoop (52) fixedly connected to the edge of the second screen (51). A groove recessed downward is formed on the upper surface of the outer hoop (52). An insertion port (521) is formed on the groove wall of the outer hoop (52). The insertion port (521) cooperates with the turntable (31) to enable the slag removal blade (32) to enter the groove of the outer hoop (52).

10. A white bean grinding sand filter press device according to claim 1, characterized in that: The second screen (51) is arranged in an "umbrella" shape. A support seat (53) is arranged in the middle of the second screen (51) and is supported by a telescopic rod (54) fixedly assembled on the vibrating screen (10), so that the second screen (51) bulges upward.

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