Filter aid cake quick release device

Abstract

The utility model belongs to filter equipment auxiliary device technical field especially, and it is filter aid filter cake quick stripping device, sets up on filter plate, and corresponding filter cloth that is laid on the filter plate filter surface, include: be used for with filter cake forms effective contact and drives filter cake to separate from filter cloth's stripping frame, be used for driving stripping frame relative to the filter plate filter surface reciprocating motion's drive mechanism, and with drive mechanism cooperation, be used for pushing out filter cake from stripping frame's material blocking mechanism, stripping frame not only can position filter cake's formation position and formation size, cooperation drive mechanism and material blocking mechanism can realize stripping fast, be favorable to the promotion processing efficiency, two groups of drive mechanisms pass through linkage mechanism synchronous drive stripping frame to be close to or far from filter plate, avoid the stripping frame skew influence stripping effect and cause filter cake damage, improved security, and only adopt a servo motor, effectively reduced energy consumption.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary devices for filtration equipment, specifically relating to a rapid demolding device for filter cakes made from filter aids. Background Technology

[0002] In many industrial production processes, such as chemical, food, and environmental protection industries, filter presses are often used for solid-liquid separation. After filtration, the filter cake adheres to the filter plate, and the successful demolding of the filter cake is a key step in ensuring production efficiency and product quality.

[0003] Currently, common methods for demolding filter cakes have many problems. Some methods rely on manual operation, which is labor-intensive and inefficient. Furthermore, manual removal of filter cakes can easily damage the filter cloth, increasing production costs. Therefore, developing a device that is simple in structure, low in cost, and can quickly and efficiently demold filter cakes is of great practical significance.

[0004] To address the aforementioned problems, this utility model proposes a rapid demolding device for filter cake made from filter aid. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides a rapid demolding device for filter cakes, which is convenient to use, safe to demold, and highly efficient in demolding.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a rapid demolding device for filter cake, disposed on a filter plate, and correspondingly laid on the filter cloth on the filter surface of the filter plate, comprising:

[0007] A demolding frame used to make effective contact with the filter cake and to remove the filter cake from the filter cloth;

[0008] A drive mechanism for driving the demolding frame to reciprocate relative to the filter plate surface; and

[0009] A material-blocking mechanism that works in conjunction with the drive mechanism to push the filter cake out of the demolding frame.

[0010] As a preferred technical solution of this utility model, the cross-section of the demolding frame is "L" shaped, and its inner side is a receiving cavity for forming filter cake. A positioning groove is provided on the filter surface of the filter plate for the demolding frame to be partially embedded.

[0011] As a preferred embodiment of this utility model, the driving mechanism includes:

[0012] Movable seats, two of which are symmetrically distributed and movably connected to the side of the filter plate;

[0013] A connecting arm, one end of which is rotatably connected to the movable seat and the other end of which is rotatably connected to the demolding frame;

[0014] Two fixing plates are symmetrically fixed to the side of the filter plate.

[0015] A bidirectional threaded screw, rotatably mounted between two fixed plates, wherein the movable seat is threadedly engaged with the bidirectional threaded screw; and

[0016] A servo motor, fixed to the fixed plate, is used to drive the bidirectional threaded screw to rotate.

[0017] As a preferred embodiment of this utility model, the driving mechanism further includes:

[0018] A first pin, fixed to the outer wall of the movable seat, and passing through the connecting arm to form a rotating structure; and

[0019] The second pin is fixed to the outer wall of the demolding frame and passes through the connecting arm to form a rotating structure.

[0020] In a preferred embodiment of this invention, the end face of the movable seat is attached to the outer wall of the filter plate.

[0021] As a preferred embodiment of this utility model, it further includes a linkage mechanism, wherein two sets of drive mechanisms are symmetrically distributed, and the linkage mechanism includes:

[0022] Synchronizing pulleys are fixed at the bottom ends of both bidirectional threaded screws; and

[0023] A timing belt, which is tensioned by two timing pulleys.

[0024] In a preferred embodiment of this utility model, the two sets of material-stopping mechanisms are symmetrically distributed, and the material-stopping mechanism includes:

[0025] The L-shaped fixing bracket is fixed to the end face of the filter plate;

[0026] A stop bar, movably connected to the L-shaped fixing frame; and

[0027] An electric push rod is fixed to the L-shaped fixing frame, and the piston rod of the electric push rod passes through the L-shaped fixing frame and is fixedly connected to the stop bar.

[0028] As a preferred embodiment of this utility model, the material blocking mechanism further includes:

[0029] Two guide posts are symmetrically fixed on the baffle strip, and the guide posts pass through the L-shaped fixing frame.

[0030] As a preferred embodiment of this utility model, the material blocking mechanism further includes:

[0031] A rubber strip is bonded and fixed to the surface of the baffle strip.

[0032] Compared with the prior art, the beneficial effects of this utility model are:

[0033] 1. The demolding frame can not only position and determine the size of the filter cake, but also, in conjunction with the drive mechanism and the material blocking mechanism, enable rapid demolding, which helps improve processing efficiency;

[0034] 2. The two sets of drive mechanisms synchronously drive the demolding frame to move closer to or away from the filter plate through the linkage mechanism, so as to avoid the demolding frame from tilting and affecting the demolding effect and causing damage to the filter cake, thus improving safety. In addition, only one servo motor is needed, which effectively reduces energy consumption.

[0035] Other additional advantages and beneficial effects of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this invention. Attached Figure Description

[0036] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0037] Figure 1 This is a schematic diagram of the structure of this utility model;

[0038] Figure 2 This utility model Figure 1 A magnified schematic diagram of the drive mechanism in the diagram;

[0039] Figure 3 This utility model Figure 1 Enlarged schematic diagram of the material blocking mechanism in the middle;

[0040] Figure 4 This utility model Figure 1 A magnified schematic diagram of the linkage mechanism.

[0041] In the diagram: 1. Filter plate; 11. Positioning groove; 2. Filter cloth; 3. Demolding frame; 31. Receiving cavity; 4. Drive mechanism; 41. Moving seat; 42. First pin; 43. Second pin; 44. Connecting arm; 45. Fixing plate; 46. Bidirectional threaded screw; 47. Servo motor; 5. Material blocking mechanism; 51. L-shaped fixing frame; 52. Material blocking strip; 53. Electric push rod; 54. Guide column; 55. Rubber strip; 6. Linkage mechanism; 61. Synchronous pulley; 62. Synchronous belt. Detailed Implementation

[0042] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0043] Please see Figures 1-4 The present invention provides the following technical solution: a rapid demolding device for filter cake of filter aid, which is set on filter plate 1 and corresponding to filter cloth 2 laid on the filter surface of filter plate 1, including: a demolding frame 3 for forming effective contact with the filter cake and driving the filter cake to detach from the filter cloth 2, a driving mechanism 4 for driving the demolding frame 3 to reciprocate relative to the filter surface of filter plate 1, and a baffle mechanism 5 cooperating with the driving mechanism 4 for pushing the filter cake out of the demolding frame 3.

[0044] Furthermore, by Figure 1 and Figure 2 As shown in this embodiment, the demolding frame 3 has an "L" shaped cross section, with an inner cavity 31 for forming the filter cake. A positioning groove 11 is provided on the filter surface of the filter plate 1 for the demolding frame 3 to be partially embedded. After adopting the above scheme, when the filtration stage is completed, the demolding frame 3 is initially embedded in the positioning groove 11 of the filter surface of the filter plate 1. The vertical section of its "L" shaped cross section surrounds the edge of the filter cloth 2, and the inner cavity 31 is precisely matched with the shape of the filter cake. At this time, the drive mechanism 4 is in standby mode, and the material blocking mechanism 5 is kept at a preset position on one side of the demolding frame 3 to ensure that it does not interfere with the initial state of the filter cake.

[0045] After the drive mechanism 4 is started, it drives the demolding frame 3 to move away from the filter cloth 2. Since the vertical section of the "L"-shaped section of the demolding frame 3 forms an effective rigid contact with the edge of the filter cake, and the accommodating cavity 31 forms a wrapping and limiting effect on the filter cake, the filter cake overcomes the adhesion between itself and the filter cloth 2 under the drive of the demolding frame 3, and detaches from the surface of the filter cloth 2 synchronously with the demolding frame 3, thus completing the initial separation of the filter cake from the filter cloth 2.

[0046] For filter cakes with high viscosity, a release agent can be injected into the contact surface between the filter cake and the filter cloth 2 to help the filter cake and the filter cloth 2 separate safely.

[0047] When the demolding frame 3 moves the filter cake to the preset end point of the stroke, the drive mechanism 4 stops driving. At this time, the demolding frame 3 passes the blocking mechanism 5, and the blocking mechanism 5 is then activated to limit and block the filter cake from the rear.

[0048] Finally, the drive mechanism 4 drives the demolding frame 3 to move in the opposite direction (i.e. towards the direction closer to the filter plate 1), and at the same time drives the demolding frame 3 and the filter cake inside the demolding frame 3 to move. Due to the obstruction of the baffle mechanism 5, the filter cake is restricted by the baffle mechanism 5 and cannot move when the demolding frame 3 moves. As the demolding frame 3 moves, the filter cake is separated from the demolding frame 3, thus realizing the entire demolding process.

[0049] After demolding is completed, the drive mechanism 4 drives the demolding frame 3 to move forward to move away from the material blocking mechanism 5. Then the material blocking mechanism 5 resets first, and the demolding frame 3 then performs the reset process.

[0050] Optionally, by Figure 1 and Figure 2 As shown, in this embodiment, the drive mechanism 4 includes: a movable seat 41, a first pin 42, a second pin 43, a connecting arm 44, a fixing plate 45, a bidirectional threaded screw 46, and a servo motor 47. The two movable seats 41 are symmetrically distributed and movably connected to the side of the filter plate 1. One end of the connecting arm 44 is rotatably connected to the movable seat 41, and the other end is rotatably connected to the demolding frame 3 (the first pin 42 is fixed to the outer wall of the movable seat 41, and the first pin 42 passes through the connecting arm 44 to form a rotating structure; the second pin 43 is fixed to the outer wall of the demolding frame 3, and the second pin 43 passes through the connecting arm 44 to form a rotating structure). The two fixing plates 45 are symmetrically fixed to the side of the filter plate 1. On the surface, the bidirectional threaded screw 46 is rotatably mounted between two fixed plates 45. The movable seat 41 is threadedly engaged with the bidirectional threaded screw 46. The servo motor 47 is fixed on the fixed plate 45 and is used to drive the bidirectional threaded screw 46 to rotate. With the above scheme, before demolding, the drive mechanism 4 is in the initial standby state: the two movable seats 41 are symmetrically distributed on the bidirectional threaded screw 46, and the movable seats 41 remain stationary because the bidirectional threaded screw 46 does not rotate. The connecting arm 44 forms an inclined "linkage structure" through the first pin 42 and the second pin 43. At this time, the demolding frame 3 is just partially embedded in the positioning groove 11 of the filter plate 1 under the support of the connecting arm 44.

[0051] When it is necessary to drive the demolding frame 3 to detach from the filter cloth 2, the servo motor 47 is started. The output shaft of the servo motor 47 is connected to the bidirectional threaded screw 46, and the driving force is directly transmitted to the bidirectional threaded screw 46, causing it to rotate between the two fixed plates 45. Since the threads at both ends of the bidirectional threaded screw 46 turn in opposite directions, and the two moving seats 41 are respectively threaded with the threaded sections at both ends of the bidirectional threaded screw 46, the two moving seats 41 will move relatively closer along the axis of the bidirectional threaded screw 46 when the bidirectional threaded screw 46 rotates.

[0052] As the two movable seats 41 approach each other, the motion state of the connecting arm 44 changes: the connecting arm 44 is driven by the movable seat 41 to rotate and move, and at the same time pushes the demolding frame 3 to move. The demolding frame 3 moves smoothly outward along the extension direction of the positioning groove 11, gradually separating from the positioning groove 11, and at the same time driving the filter cake in the accommodating cavity 31 to separate from the filter cloth 2, thus completing the "driving separation" step of demolding.

[0053] Preferably, by Figure 1 and Figure 2 As shown in this embodiment, the end face of the movable seat 41 is attached to the outer wall of the filter plate 1. With the above solution, during use, on the one hand, the contact surface can offset the radial force transmitted by the bidirectional threaded screw 46, restricting the movable seat 41 to move only along the axis of the bidirectional threaded screw 46, thus avoiding radial offset; on the other hand, even when the servo motor 47 starts and stops (there is an instantaneous impact force) or the filter cake adhesion is large (uneven demolding resistance), the contact surface can ensure that the two movable seats 41 always maintain a symmetrical movement state, and will not cause inconsistent swing angles of the connecting arm 44 due to unilateral offset, thereby ensuring that the demolding frame 3 is subjected to balanced force and always moves smoothly along the positioning groove 11, effectively avoiding problems such as filter cake breakage and filter cloth 2 scratches caused by the offset of the demolding frame 3.

[0054] Optionally, by Figure 1 , Figure 2 and Figure 4 As shown, this embodiment also includes a linkage mechanism 6. The drive mechanism 4 is symmetrically distributed in two sets, and the linkage mechanism 6 includes a synchronous pulley 61 and a synchronous belt 62. The synchronous pulley 61 is fixed at the bottom end of each of the two bidirectional threaded screws 46. The synchronous belt 62 is tensioned by the two synchronous pulleys 61. With the above solution, when the servo motor 47 drives one of the bidirectional threaded screws 46 to rotate, the synchronous pulley 61 at the bottom end of the bidirectional threaded screw 46 is driven to rotate, and the tensioned synchronous belt 62 is driven to rotate at the same time.

[0055] The synchronous belt 62 drives another synchronous wheel 61 to rotate, and drives the corresponding bidirectional threaded screw 46 to rotate, so that the two bidirectional threaded screws 46 keep rotating synchronously. The two sets of drive mechanisms 4 drive the demolding frame 3 to move closer to or away from the filter plate 1 through the linkage mechanism 6, so as to avoid the demolding frame 3 from tilting and affecting the demolding effect and causing damage to the filter cake, thus improving safety. Moreover, only one servo motor 47 is needed, which effectively reduces energy consumption.

[0056] Optionally, by Figure 1 and Figure 3 As shown in this embodiment, two sets of material blocking mechanisms 5 are symmetrically distributed, and the material blocking mechanism 5 includes: an L-shaped fixed frame 51, a material blocking strip 52, an electric push rod 53, a guide column 54, and a rubber strip 55. The L-shaped fixed frame 51 is fixed to the end face of the filter plate 1, the material blocking strip 52 is movably connected to the L-shaped fixed frame 51, the electric push rod 53 is fixed to the L-shaped fixed frame 51, and the piston rod of the electric push rod 53 passes through the L-shaped fixed frame 51 and is fixedly connected to the material blocking strip 52. Two guide columns 54 are symmetrically fixed on the material blocking strip 52, and the guide columns 54 pass through the L-shaped fixed frame 51. The rubber strip 55 is bonded and fixed to the surface of the material blocking strip 52. With the above scheme, when the device is in the filtering or demolding frame 3 moving stage, the material blocking mechanism 5 maintains the initial standby state: the L-shaped fixed frame 51 is firmly fixed to the end face of the filter plate 1 by bolts and other connecting parts.

[0057] After the demolding frame 3 passes the baffle bar 52, the electric push rod 53 is activated. The piston rod of the electric push rod 53 extends and pushes the baffle bar 52 to move to the rear of the filter cake. During this process, the two guide pillars 54 pass through the guide holes reserved on the L-shaped fixing frame 51 and move with the baffle bar 52 to guide the baffle bar 52 and ensure the stability of the baffle bar 52.

[0058] Afterwards, the servo motor 47 restarts and drives the bidirectional threaded screw 46 to rotate in the opposite direction, causing the demolding frame 3 to move the filter cake toward the direction closer to the filter plate 1, so that the filter cake gradually approaches the baffle bar 52. As the demolding frame 3 continues to move, the filter cake gradually detaches from the demolding frame 3 under the obstruction of the baffle bar 52. The filter cake first contacts the rubber strip 55 to avoid direct rigid impact with the baffle bar 52 and shrinkage.

[0059] It should be noted that the servo motor 47 and the electric actuator 53 are both commercially available standard devices with built-in power switches. Those skilled in the art can make conventional selections according to their needs. Their working principles are common knowledge known to those skilled in the art and have been fully disclosed in the prior art, so they will not be elaborated on further in this article.

[0060] The circuit connection involved in this utility model is a common method used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. It belongs to the widely used prior art.

[0061] Components not described in detail in this article are existing technologies.

[0062] The working principle and usage process of this utility model: When using the demolding device of this utility model, before demolding, the drive mechanism 4 is in the initial standby state: the two moving seats 41 are symmetrically distributed on the bidirectional threaded screw 46, and because the bidirectional threaded screw 46 does not rotate, the moving seats 41 remain stationary; the connecting arm 44 forms an inclined "linkage structure" through the first pin 42 and the second pin 43. At this time, the demolding frame 3 is just partially embedded in the positioning groove 11 of the filter plate 1 under the support of the connecting arm 44.

[0063] When it is necessary to drive the demolding frame 3 to detach from the filter cloth 2, the servo motor 47 is started. The output shaft of the servo motor 47 is connected to the bidirectional threaded screw 46, and the driving force is directly transmitted to the bidirectional threaded screw 46, causing it to rotate between the two fixed plates 45. Since the threads at both ends of the bidirectional threaded screw 46 are opposite in direction, and the two moving seats 41 are respectively threaded with the threaded sections at both ends of the bidirectional threaded screw 46, when the bidirectional threaded screw 46 rotates, the two moving seats 41 will move closer to each other along the axis of the bidirectional threaded screw 46.

[0064] As the two movable seats 41 approach each other, the motion state of the connecting arm 44 changes: the connecting arm 44 is driven by the movable seat 41 to rotate and move, and at the same time pushes the demolding frame 3 to move. The demolding frame 3 moves smoothly outward along the extension direction of the positioning groove 11, gradually separating from the positioning groove 11, and at the same time drives the filter cake in the accommodating cavity 31 to separate from the filter cloth 2, completing the "drive separation" step of demolding.

[0065] When the demolding frame 3 passes the baffle bar 52, the electric push rod 53 is activated. The piston rod of the electric push rod 53 extends and pushes the baffle bar 52 to move, so that the baffle bar 52 moves to the rear of the filter cake.

[0066] Then the servo motor 47 restarts and drives the bidirectional threaded screw 46 to rotate in the opposite direction, causing the demolding frame 3 to move the filter cake toward the direction closer to the filter plate 1, so that the filter cake gradually approaches the baffle bar 52. As the demolding frame 3 continues to move, the filter cake gradually detaches from the demolding frame 3 under the obstruction of the baffle bar 52, thus realizing the entire demolding process.

[0067] After demolding is completed, the drive mechanism 4 drives the demolding frame 3 to move forward to move away from the material blocking mechanism 5. Then the material blocking mechanism 5 resets first, and the demolding frame 3 then performs the reset process.

[0068] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rapid demolding device for filter cake of filter aid, disposed on a filter plate (1) and correspondingly laid on the filter surface of the filter plate (1), characterized in that, include: Demolding frame (3) for effectively contacting the filter cake and driving the filter cake to detach from the filter cloth (2); A drive mechanism (4) for driving the demolding frame (3) to reciprocate relative to the filter surface of the filter plate (1); and A baffle mechanism (5) is used in conjunction with the drive mechanism (4) to push the filter cake out of the demolding frame (3).

2. The rapid demolding device for filter cake as described in claim 1, characterized in that: The demolding frame (3) has an "L" shaped cross section, with an inner cavity (31) for forming filter cake. A positioning groove (11) is provided on the filter surface of the filter plate (1) for the demolding frame (3) to be partially embedded.

3. The rapid demolding device for filter cake as described in claim 1, characterized in that: The drive mechanism (4) includes: Movable seats (41), two of the movable seats (41) are symmetrically distributed and movably connected to the side of the filter plate (1); Connecting arm (44), one end of which is rotatably connected to the movable seat (41) and the other end is rotatably connected to the demolding frame (3); Fixing plates (45), two of the fixing plates (45) are symmetrically fixed to the side of the filter plate (1); A bidirectional threaded screw (46) is rotatably mounted between two fixed plates (45), and the movable seat (41) is threadedly engaged with the bidirectional threaded screw (46); and A servo motor (47) is fixed on the fixed plate (45) and is used to drive the bidirectional threaded screw (46) to rotate.

4. The rapid demolding device for filter cake of filter aid according to claim 3, characterized in that: The drive mechanism (4) further includes: A first pin (42) is fixed to the outer wall of the movable seat (41) and extends through the connecting arm (44) to form a rotating structure; and The second pin (43) is fixed to the outer wall of the demolding frame (3) and passes through the connecting arm (44) to form a rotating structure.

5. The rapid demolding device for filter cake as described in claim 3, characterized in that: The end face of the movable seat (41) is attached to the outer wall of the filter plate (1).

6. The rapid demolding device for filter cake as described in claim 3, characterized in that: It also includes a linkage mechanism (6), wherein the drive mechanism (4) is symmetrically distributed in two sets, and the linkage mechanism (6) includes: Synchronizing pulleys (61) are fixed at the bottom ends of both bidirectional threaded screws (46); and A timing belt (62) is tensioned by two timing pulleys (61).

7. The rapid demolding device for filter cake as described in claim 1, characterized in that: The two sets of the material blocking mechanisms (5) are symmetrically distributed, and the material blocking mechanism (5) includes: L-shaped fixing bracket (51), the L-shaped fixing bracket (51) is fixed to the end face of the filter plate (1); Material stop (52), said material stop (52) being movably connected to said L-shaped fixing frame (51); and An electric push rod (53) is fixed to the L-shaped fixing frame (51), and the piston rod of the electric push rod (53) passes through the L-shaped fixing frame (51) and is fixedly connected to the baffle strip (52).

8. The rapid demolding device for filter cake of filter aid according to claim 7, characterized in that: The material blocking mechanism (5) further includes: Guide posts (54), two guide posts (54) are symmetrically fixed on the baffle strip (52), and the guide posts (54) pass through the L-shaped fixing frame (51).

9. The rapid demolding device for filter cake as described in claim 7, characterized in that: The material blocking mechanism (5) further includes: A rubber strip (55) is bonded and fixed to the surface of the baffle strip (52).

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