Filter plate driving device and plate-and-frame filter press

Abstract

The present disclosure relates to a filter plate drive device and a plate and frame filter press. The filter plate drive device includes two oppositely arranged crossbeams, a plate pulling trolley group, and a detection system. The plate pulling trolley group includes a first plate pulling trolley and a second plate pulling trolley, the first plate pulling trolley and the second plate pulling trolley are respectively connected to the two crossbeams, and the first plate pulling trolley and the second plate pulling trolley cooperate to drive the filter plate to move along the length direction of the crossbeam. The detection system includes a first detection component and a second detection component, the first detection component is connected to the first plate pulling trolley, and the second detection component is connected to the second plate pulling trolley. The first detection component and / or the second detection component can detect whether the filter plate is tilted. The filter plate drive device can detect whether the filter plate is tilted and can promptly remind the operator to shut down the machine for maintenance or overhaul to ensure the filter press filtration effect.

Description

Technical Field

[0001] The present disclosure relates to the technical field of solid-liquid separation equipment, and in particular to a filter plate driving device and a plate and frame filter press. Background Art

[0002] Plate and frame filter presses are widely used to filter coal slime or sludge. During use, the plate and frame filter press needs to drive multiple filter plates to move closer and separate to achieve switching between the filtration state and the filter cake release state.

[0003] Related technology When the filter plate moves on the plate and frame filter press, it is easy to tilt due to force or aging of the connecting structure, resulting in failure of the filter plate when it moves together or apart, thereby affecting the filtering effect of coal slime or sludge. At the same time, safety accidents may also occur due to untimely maintenance. Summary of the Invention

[0004] The purpose of the present disclosure is to provide a filter plate driving device and a plate and frame filter press to solve the problems in the above-mentioned related technologies.

[0005] In order to achieve the above-mentioned object, one aspect of the present disclosure provides a filter plate driving device, comprising two oppositely arranged crossbeams, a plate pulling trolley assembly and a detection system;

[0006] The plate pulling trolley group includes a first plate pulling trolley and a second plate pulling trolley, the first plate pulling trolley and the second plate pulling trolley are respectively connected to the two cross beams, and the cooperation between the first plate pulling trolley and the second plate pulling trolley is used to drive the filter plate to move along the length direction of the cross beam;

[0007] The detection system includes a first detection component and a second detection component. The first detection component is connected to the first plate pulling trolley, and the second detection component is connected to the second plate pulling trolley. The first detection component and / or the second detection component can detect whether the filter plate is tilted.

[0008] Optionally, the first detection component includes a first detection plate and a first detection sensor, the first detection plate is connected to the first plate pulling trolley, and the first detection sensor is connected to an end of the first detection plate away from the first plate pulling trolley;

[0009] The second detection component includes a second detection plate and a second detection sensor, the second detection plate is connected to the second plate pulling trolley, and the second detection sensor is connected to an end of the second detection plate away from the second plate pulling trolley;

[0010] The detection direction of the first detection sensor is toward the second detection plate and perpendicular to the crossbeam, and the detection direction of the second detection sensor is toward the first detection plate and perpendicular to the crossbeam. When the filter plate is tilted, the filter plate can block the detection end of the first detection sensor and / or the detection end of the second detection sensor.

[0011] Optionally, the number of the first detection sensors is two, and the two first detection sensors are arranged in parallel along the horizontal direction; the number of the second detection sensors is two, and the two second detection sensors are arranged in parallel along the horizontal direction; both the first detection sensor and the second detection sensor are constructed as wireless ranging sensors.

[0012] Optionally, the horizontal height of the installation position of the first detection sensor is greater than the horizontal height of the installation position of the second detection sensor, and the horizontal height of the installation position of the first detection sensor and the horizontal height of the installation position of the second detection sensor are both higher than the horizontal height of the top of the beam.

[0013] Optionally, each of the crossbeams is provided with a chain, a driven sprocket and a driving sprocket, the driving sprocket and the driven sprocket are respectively rotatably connected to the two ends of the crossbeam, the chain is wound around the driving sprocket and the driven sprocket, and the first pulling plate trolley and the second pulling plate trolley are respectively connected to the chain transmission on the corresponding crossbeam.

[0014] Optionally, a first track and a second track are provided on each of the beams, the first track is arranged parallel to the second track and extends along the length direction of the beam, the first track is located above the second track, the chain is connected to the first track and the second track, and the first plate pulling trolley and the second plate pulling trolley are respectively slidably connected to the first track on the corresponding beam.

[0015] Optionally, a guide slide is provided on each of the crossbeams, and the guide slide extends along the length direction of the corresponding crossbeam, and the guide slide is used for sliding connection with the filter plate.

[0016] The second aspect of the present disclosure also provides a plate and frame filter press, comprising the above-mentioned filter plate driving device and multiple filter plates, the plate pulling trolley group of the filter plate driving device can drive the multiple filter plates to move in the length direction of the crossbeam of the filter plate driving device, and the first detection component and / or the second detection component of the filter plate driving device can detect whether each filter plate is tilted.

[0017] Optionally, every two adjacent filter plates constitute a filter plate group, and a pull belt is provided between the two filter plates in each filter plate group to enable the two filter plates in each filter plate group to move synchronously, and both sides of each filter plate group are slidably connected to the two cross beams, and the pulling plate trolley group can be connected to or separated from each filter plate group respectively, so that the pulling plate trolley group can drive each filter plate group to move along the length direction of the cross beam respectively.

[0018] Optionally, ear plates are formed on both sides of each filter plate, and pull rods are formed on the ear plates. The two ends of each pull strap are respectively connected to the pull rods of the two filter plates of the corresponding filter plate group. Connecting rods are formed on the ear plates on both sides of at least one filter plate in each filter plate group, and the connecting rods can be connected to or separated from the pulling plate trolley group.

[0019] The above technical solution can detect whether the filter plate is tilted by providing the first detection component and the second detection component, thereby promptly reminding the operator to shut down the machine for maintenance or overhaul to ensure the filter pressure filtration effect and avoid incomplete filtration. It also avoids safety accidents and other problems, and does not require frequent manual inspections, reducing the workload. The first detection component is connected to the first plate pulling trolley, and the second detection component is connected to the second plate pulling trolley, so that the filter plate can be detected in real time while the first plate pulling trolley and the second plate pulling trolley are pulling the filter plate to move, ensuring the timeliness and accuracy of the detection of whether the filter plate is tilted.

[0020] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0022] Figure 1 is a perspective schematic diagram of a filter plate driving device according to an embodiment of the present disclosure;

[0023] Figure 2 is a schematic diagram of the forward structure of a filter plate driving device according to an embodiment of the present disclosure;

[0024] Figure 3 is a schematic structural diagram of a filter plate according to an embodiment of the present disclosure;

[0025] Figure 4 is a structural schematic diagram of a filter plate in a normal state according to an embodiment of the present disclosure;

[0026] Figure 51 is a schematic structural diagram of a fault 1 of a filter plate according to an embodiment of the present disclosure;

[0027] Figure 6 is a structural schematic diagram of a second fault of a filter plate according to an embodiment of the present disclosure;

[0028] Figure 7 1 is a structural schematic diagram of a third fault of a filter plate according to an embodiment of the present disclosure.

[0029] Description of Reference Numerals

[0030] 1. Crossbeam, 11. Chain, 12. Driven sprocket, 13. Driving sprocket, 14. First track, 15. Second track, 16. Guide slide, 2. Pull plate trolley group, 21. First pull plate trolley, 22. Second pull plate trolley, 3. First detection component, 31. First detection plate, 32. First detection sensor, 4. Second detection component, 41. Second detection plate, 42. Second detection sensor, 5. Filter plate group, 51. Filter plate, 52. Pull belt, 53. Ear plate, 54. Connecting rod, 55. Pull rod, 6. First reversing block, 7. Second reversing block. DETAILED DESCRIPTION

[0031] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0032] In this disclosure, unless otherwise indicated, directional terms such as "upper," "lower," "left," and "right" are generally defined relative to the drawing plane of the accompanying drawings, and "inner" and "outer" refer to the inside and outside of the relevant component. Furthermore, the terms "first," "second," and the like are used solely for purposes of distinction and are not to be construed as indicating or implying relative importance.

[0033] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "disposed" and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to direct connections, indirect connections through an intermediate medium, or internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this disclosure based on specific circumstances.

[0034] Solid-liquid separation technology primarily separates solid materials from liquids. It is typically categorized by solid particle size and operating principle, including gravity dehydration, centrifugal dehydration, and filtration dehydration. Gravity dehydration is primarily used for larger particles, relying on gravity to remove them from the pores. Centrifugal dehydration primarily utilizes centrifugal force and filter media to remove water through centrifugation. Because centrifugal force is typically greater than gravity, centrifugal dehydration is more effective than gravity dehydration. Filter presses are primarily used for extrusion filtration.

[0035] Filter presses are widely used in tailings treatment in mineral processing plants, coal slime filtration in coal preparation plants, sludge filtration in sewage treatment plants, etc. Filter presses include pressure filters and plate and frame filter presses. Plate and frame filter presses, in particular, are widely used for filtering coal slime or sludge. During use, the plate and frame filter press needs to drive multiple filter plates 51 to move closer and separate to achieve switching between the filtration state and the filter cake release state.

[0036] Related technology When the filter plate 51 moves on the plate and frame filter press, it is easy to tilt due to force or aging of the connecting structure, causing the filter plate 51 to malfunction when it moves together or apart, thereby affecting the filtering effect of coal slime or sludge. At the same time, safety accidents may also occur due to untimely maintenance.

[0037] For this reason, Figure 1-Figure 7 As shown, one aspect of the present disclosure provides a filter plate driving device, comprising two oppositely arranged crossbeams 1, a plate pulling trolley group 2 and a detection system.

[0038] The plate pulling trolley group 2 includes a first plate pulling trolley 21 and a second plate pulling trolley 22. The first plate pulling trolley 21 and the second plate pulling trolley 22 are respectively connected to the two beams 1. The cooperation of the first plate pulling trolley 21 and the second plate pulling trolley 22 is used to drive the filter plate 51 to move along the length direction of the beam 1.

[0039] The detection system includes a first detection component 3 and a second detection component 4. The first detection component 3 is connected to the first plate pulling trolley 21, and the second detection component 4 is connected to the second plate pulling trolley 22. The first detection component 3 and / or the second detection component 4 can detect whether the filter plate 51 is tilted.

[0040] Among them, the first plate pulling trolley 21 and the second plate pulling trolley 22 can move along the length direction of the beam 1 on the two beams 1 respectively, thereby driving the filter plate 51 to move along the length direction of the beam 1, so that multiple filter plates 51 are close to each other or away from each other, realizing the switching between the filtration state and the filter cake release state.

[0041] Among them, the first detection component 3 can move synchronously with the first plate pulling trolley 21, and the second detection component 4 can move synchronously with the second plate pulling trolley 22, so that when the filter plate 51 is driven by the first plate pulling trolley 21 and the second plate pulling trolley 22, the first detection component 3 and / or the second detection component 4 can detect that the filter plate 51 is in a tilted state, and can promptly remind the operating personnel to shut down for maintenance or inspection.

[0042] In the above technical solution, the first detection component 3 and the second detection component 4 are provided to detect whether the filter plate 51 is tilted, so that the operator can be reminded to shut down the machine for maintenance or overhaul in time to ensure the filter pressure filtration effect and avoid incomplete filtration. At the same time, it also avoids safety accidents and other problems. Frequent manual inspections are not required, reducing the workload. The first detection component 3 is connected to the first plate pulling trolley 21, and the second detection component 4 is connected to the second plate pulling trolley 22. The filter plate 51 can be pulled and moved by the first plate pulling trolley 21 and the second plate pulling trolley 22 to achieve real-time detection of the filter plate 51, ensuring the timeliness and accuracy of the detection of whether the filter plate 51 is tilted.

[0043] Optionally, in one embodiment of the present disclosure, the detection component further includes a controller, the first detection component 3 and the second detection component 4 are electrically connected to the controller, and the first detection component 3 and the second detection component 4 can send electrical signals to the controller.

[0044] It is understandable that when the first detection component 3 and / or the second detection component 4 detects that the filter plate 51 is tilted, an electrical signal can be sent to the controller so that the controller can generate corresponding operations. For example, the detection component can also be provided with an alarm, and the alarm is electrically connected to the controller. After receiving the electrical signal, the controller can control the alarm to emit an alarm tone. Of course, in other examples, the controller can also be electrically connected to the external control system of the plate and frame filter press. After receiving the electrical signal, the controller can send a message to the external control system to prompt the operator of the external control system, and also directly control the plate and frame filter press to stop running. Of course, the first detection component 3 and the second detection component 4 can also be directly connected to the external control system, because the external control system performs unified control.

[0045] Optionally, in some examples, the crossbeam 1 is formed by cutting and welding metal steel plates, and the crossbeam 1 can be connected to the factory structure through a supporting structure.

[0046] Optionally, in one embodiment of the present disclosure, the first detection component 3 includes a first detection plate 31 and a first detection sensor 32. The first detection plate 31 is connected to the first plate pulling trolley 21, and the first detection sensor 32 is connected to an end of the first detection plate 31 away from the first plate pulling trolley 21. This arrangement facilitates the installation and fixation of the first detection sensor 32 and facilitates the setting of the position of the first detection sensor 32 to ensure the detection effect of the first detection sensor 32.

[0047] In this embodiment, the first detection plate 31 is used to fix the first detection sensor 32. In some examples, the first detection plate 31 is formed on the first plate pulling trolley 21, and the first detection sensor 32 is adhered to the first detection plate 31 by adhesive.

[0048] The second detection component 4 includes a second detection plate 41 and a second detection sensor 42. The second detection plate 41 is connected to the second plate pulling trolley 22, and the second detection sensor 42 is connected to the end of the second detection plate 41 away from the second plate pulling trolley 22. This arrangement facilitates the installation and fixation of the second detection sensor 42 and facilitates the positioning of the second detection sensor 42 to ensure the detection effect of the second detection sensor 42.

[0049] In this embodiment, the second detection plate 41 is used to fix the second detection sensor 42. In some examples, the second detection plate 41 is formed on the second plate pulling trolley 22, and the second detection sensor 42 is adhered to the second detection plate 41 by adhesive.

[0050] The detection direction of the first detection sensor 32 is toward the second detection plate 41 and perpendicular to the crossbeam 1. The detection direction of the second detection sensor 42 is toward the first detection plate 31 and perpendicular to the crossbeam 1. When the filter plate 51 is tilted, the filter plate 51 can block the detection end of the first detection sensor 32 and / or the detection end of the second detection sensor 42. This arrangement allows the first detection sensor 32 and the second detection sensor 42 to accurately perform identification and detection when the filter plate 51 is tilted.

[0051] In this embodiment, the detection direction of the first detection sensor 32 and the detection direction of the second detection sensor 42 are opposite to each other, and both are perpendicular to the beam 1 .

[0052] It can be understood that when the filter plate 51 is not tilted, the filter plate 51 will not block the detection end of the first detection sensor 32 and / or the detection end of the second detection sensor 42. At this time, the filter plate 51 is parallel to the detection direction of the first detection sensor 32 and the detection direction of the second detection sensor 42, and the first detection sensor 32 and / or the second detection sensor 42 will not detect the filter plate 51.

[0053] When the filter plate 51 is tilted, the filter plate 51 blocks the detection end of the first detection sensor 32 and / or the detection end of the second detection sensor 42. At this time, the filter plate 51 intersects with the detection direction of the first detection sensor 32 and / or the detection direction of the second detection sensor 42, and the first detection sensor 32 and / or the second detection sensor 42 detects the filter plate 51.

[0054] Optionally, in some examples, the first detection plate 31 and the second detection plate 41 are arranged opposite each other, the first detection sensor 32 is connected to the side of the first detection plate 31 facing the second detection plate 41, and the second detection sensor 42 is connected to the side of the second detection plate 41 facing the first detection plate 31. With this arrangement, the first detection sensor 32 and the second detection sensor 42 are both directed toward the space between the two crossbeams 1 for detection, thereby ensuring effective detection of the filter plate 51.

[0055] Optionally, in one embodiment of the present disclosure, the number of the first detection sensors 32 is two, and the two first detection sensors 32 are arranged in parallel in the horizontal direction. The number of the second detection sensors 42 is two, and the two second detection sensors 42 are arranged in parallel in the horizontal direction. The first detection sensor 32 and the second detection sensor 42 are both constructed as wireless distance measuring sensors. The two first detection sensors 32 and the two second detection sensors 42 can ensure the detection effect, and at the same time, the two filter plates 51 can be detected to detect whether the two filter plates 51 in the filter plate group 5 move synchronously and whether they fall off. In some examples, two adjacent filter plates 51 in the plate and frame filter press will constitute a filter plate group 5, and the two are connected by a drawstring 52 to achieve synchronous movement. When the drawstring 52 ages, it may break, and the two filter plates 51 may separate, causing one of the filter plates 51 to tilt, which will also affect the operation of the plate and frame filter press.

[0056] In this embodiment, the wireless ranging sensor can measure straight-line distance. In some examples, the detection end of the wireless ranging sensor includes a transmitter and a receiver. The transmitter of the wireless ranging sensor can emit a detection wave in a direction perpendicular to the beam 1, and the receiver of the wireless ranging sensor can receive the detection wave reflected in a direction perpendicular to the beam 1. When the detection wave contacts the object to be measured and is reflected and received, distance measurement can be achieved. In other examples, the wireless ranging sensor can also be a laser ranging sensor.

[0057] It is understandable that when the filter plate 51 is not tilted, the first detection sensor 32 detects the distance between the second detection plate 41 and the first detection sensor 32, or the distance between one side of the filter plate 51 and the first detection sensor 32. Similarly, the second detection sensor 42 detects the distance between the first detection plate 31 and the second detection sensor 42, or the distance between the other side of the filter plate 51 and the second detection sensor 42.

[0058] When the filter plate 51 is tilted, due to the tilt of the filter plate 51, the middle part of the filter plate 51 is located between the first detection sensor 32 and / or the second detection sensor 42. At this time, the first detection sensor 32 detects the distance between the middle part of the filter plate 51 and the first detection sensor 32, and / or the second detection sensor 42 detects the distance between the middle part of the filter plate 51 and the second detection sensor 42. Due to the change in the distance value, it can be detected that the filter plate 51 is tilted.

[0059] Optionally, in another embodiment of the present disclosure, the first detection sensor 32 and the second detection sensor 42 may be light detection sensors, and when the filter plate 51 is tilted, a shielding effect is generated on the first detection sensor 32 and / or the second detection sensor 42 to achieve detection.

[0060] like Figure 2 As shown, optionally, in one embodiment of the present disclosure, the horizontal height of the installation position of the first detection sensor 32 is greater than the horizontal height of the installation position of the second detection sensor 42, and the horizontal height of the installation position of the first detection sensor 32 and the horizontal height of the installation position of the second detection sensor 42 are both higher than the horizontal height of the top of the beam 1. Through such an arrangement, the first detection sensor 32 and the second detection sensor 42 are arranged in an interlaced manner, and can perform distance measurement separately, thereby achieving separate detection, which can improve detection accuracy.

[0061] The height of the installation position of the first detection sensor 32 and the height of the installation position of the second detection sensor 42 can be set according to specific needs.

[0062] Optionally, in some examples, the first detection plate 31 and the second detection plate 41 both include a vertical plate and a horizontal plate, the bottom of the vertical plate of the first detection plate 31 is connected to one side of the first plate pulling trolley 21, one end of the horizontal plate of the first detection plate 31 is connected to the top of the vertical plate of the first detection plate 31, and the first detection sensor 32 is connected to the horizontal plate of the first detection plate 31. The bottom of the vertical plate of the second detection plate 41 is connected to one side of the second plate pulling trolley 22, one end of the horizontal plate of the second detection plate 41 is connected to the top of the vertical plate of the second detection plate 41, and the second detection sensor 42 is connected to the horizontal plate of the second detection plate 41. Through such an arrangement, the horizontal height of the installation position of the first detection sensor 32 and the horizontal height of the installation position of the second detection sensor 42 are both higher than the horizontal height of the top of the beam 1, avoiding being blocked by the beam 1 and affecting the detection effect. Optionally, the first detection plate 31 and the second detection plate 41 can both be cut from ordinary steel plates.

[0063] Optionally, in one embodiment of the present disclosure, a chain 11, a driven sprocket 12 and a driving sprocket 13 are provided on each beam 1, and the driving sprocket 13 and the driven sprocket 12 are respectively rotatably connected to the two ends of the beam 1, and the chain 11 is wound around the driving sprocket 13 and the driven sprocket 12, and the first plate pulling trolley 21 and the second plate pulling trolley 22 are respectively connected to the chain 11 on the corresponding beam 1.

[0064] In this embodiment, the driving sprocket 13 is a driving wheel, which drives the chain 11 to rotate. The chain 11 is a ring-shaped structure, and the driven sprocket 12 rotates accordingly. The driven sprocket 12 and the driving sprocket 13 can stretch the chain 11 to rotate the chain 11. It should be noted that the driving sprocket 13 is connected to the driving end of the motor, and the motor can be connected to the beam 1, and the motor can drive the driving sprocket 13 to rotate.

[0065] It is understandable that, as the chain 11 on each crossbeam 1 rotates, the first plate pulling trolley 21 or the second plate pulling trolley 22 on the corresponding crossbeam 1 can be driven to move, thereby driving the filter plate 51 to move.

[0066] It should be noted that the drive sprockets 13 on the two beams 1 are connected to the same motor through a rotating shaft, so that the drive sprockets 13 on the two beams 1 can rotate synchronously, so that the first pulling plate trolley 21 and the second pulling plate trolley 22 also rotate synchronously, thereby maintaining the normal movement of the filter plate 51.

[0067] In some examples, the chain 11 , the driven sprocket 12 , and the driving sprocket 13 are all located on the outer side of the crossbeam 1 to ensure that the filter plate 51 moves between the two crossbeams 1 and avoid interference.

[0068] Optionally, in some examples, the chain 11 is a common commercial flat chain 11 with an opening provided therein, each of which is connected to the first plate-pulling trolley 21 or the second plate-pulling trolley 22. The drive sprocket 13 and the driven sprocket 12 are common commercial sprockets, each with a gear plate mounted on both ends. The drive sprockets 13 on the two beams 1 rotate synchronously via a coupling, and the driven sprockets 12 on the two beams 1 rotate synchronously via a coupling. The drive sprockets 13 and the driven sprockets 12 may be connected to the beam 1 via bearings.

[0069] Optionally, in one embodiment of the present disclosure, a first track 14 and a second track 15 are provided on each beam 1, the first track 14 and the second track 15 are arranged parallel to each other and extend along the length direction of the beam 1, the first track 14 is located above the second track 15, the chain 11 is connected to the first track 14 and the second track 15, and the first plate pulling trolley 21 and the second plate pulling trolley 22 are respectively slidably connected to the first track 14 on the corresponding beam 1.

[0070] The first track 14 and the second track 15 are provided to ensure the rotation position of the chain 11 and ensure the normal movement of the first plate pulling trolley 21 and the second plate pulling trolley 22 .

[0071] The first track 14 and the second track 15 are located between the driving sprocket 13 and the driven sprocket 12 , and the chain 11 can move on the first track 14 and the second track 15 .

[0072] Optionally, in some examples, the first rail 14 and the second rail 15 may be long strip structures, with channels provided in the first rail 14 and the second rail 15, and the chain 11 is passed through the channels. The first rail 14 and the second rail 15 are both steel structures or other materials with rectangular cross-sections, and the first rail 14 and the second rail 15 can be fixed to the outer side of the beam 1 by welding or screws. The bottom and left and right sides of the first rail 14 are closed, and a slot extending along the length of the first rail 14 is provided on the top for installing and maintaining the chain 11, and for connecting the first and second plate pulling trolleys 21 and 22 to the chain 11. The top and left and right sides of the second rail 15 are closed, and a slot extending along the length of the second rail 15 is provided on the bottom for installing and maintaining the chain 11.

[0073] Optionally, in one embodiment of the present disclosure, a guide slide 16 is provided on each crossbeam 1 , and the guide slide 16 extends along the length direction of the corresponding crossbeam 1 , and the guide slide 16 is used for sliding connection with the filter plate 51 .

[0074] The filter plate 51 can be slidably connected to the crossbeam 1 by the provided guide sliding, and the filter plate 51 can be guided so that the filter plate 51 keeps moving in the length direction of the crossbeam 1 .

[0075] In some examples, the guide slide 16 is an arcuate surface formed on the top of the crossbeam 1, and a corresponding slide groove is provided on the filter plate 51, and the slide groove is clamped on the arcuate surface. Of course, in other examples, the guide slide 16 can be configured as a slide groove, and the filter plate 51 is provided with a slider that is slidably connected to the slide groove.

[0076] The second aspect of the present disclosure also provides a plate and frame filter press, including the above-mentioned filter plate driving device and multiple filter plates 51. The plate pulling trolley group 2 of the filter plate driving device can drive the multiple filter plates 51 to move in the length direction of the crossbeam 1 of the filter plate driving device. The first detection component 3 and / or the second detection component 4 of the filter plate driving device can detect whether each filter plate 51 is tilted.

[0077] The plurality of filter plates 51 are arranged in parallel and close to each other to achieve filtration. After the filtration is completed, the plurality of filter plates 51 need to be separated from each other so that the filter cake between two adjacent filter plates 51 can be released to achieve the next filtration operation. Thus, the plate pulling trolley group 2 can easily move the plurality of filter plates 51 to achieve repeated filtration.

[0078] It should be noted that the plate pulling trolley group 2 can respectively drive multiple filter plates 51 to move, and the plate pulling trolley group 2 can be connected to and separated from multiple filter plates 51. In other words, the plate pulling trolley group 2 can drive one filter plate 51 or two or more filter plates 51 to move at a time, and when the movement is completed, the plate pulling trolley group 2 will move the next time.

[0079] In addition, it should be noted that the plate pulling trolley group 2 can realize forward movement and reverse movement, so that the multiple filter plates 51 can move closer to each other and move away from each other.

[0080] The two sides of the plurality of filter plates 51 can be slidably connected to the two cross beams 1 respectively, and the cross beams 1 can support the filter plates 51 to ensure that the plurality of filter plates 51 are parallel and produce a filter pressing effect.

[0081] In some examples, the filter plate 51 is a commercial filter plate 51 , the surface of which is covered with filter cloth and the interior of which is provided with drainage holes. The filter plate 51 is a main component of the plate and frame filter press for filtering coal slime.

[0082] Optionally, in one embodiment of the present disclosure, every two adjacent filter plates 51 constitute a filter plate group 5, and a pull belt 52 is provided between the two filter plates 51 in each filter plate group 5 to enable the two filter plates 51 in each filter plate group 5 to move synchronously, and both sides of each filter plate group 5 are slidingly connected to the two cross beams 1, and the pulling plate trolley group 2 can be connected to or separated from each filter plate group 5 respectively, so that the pulling plate trolley group 2 can drive each filter plate group 5 to move along the length direction of the cross beam 1 respectively.

[0083] This arrangement allows the plate pulling trolley assembly 2 to move both filter plates 51 of each filter plate group 5 at a time, reducing the frequency of movement and improving efficiency. The pull belt 52 allows one filter plate 51 to move under the pull of the plate pulling trolley assembly 2 while the other filter plate 51 follows the movement due to the traction of the pull belt 52. At the same time, the two filter plates 51 of each filter plate group 5 can be separated, releasing the filter cake, which then falls under its own weight.

[0084] The plate pulling trolley group 2 can move one filter plate group 5 at a time. When the plate pulling trolley group 2 needs to move the filter plate group 5, the plate pulling trolley group 2 is connected to the filter plate group 5 and moves the filter plate group 5 to a designated position. Then, the plate pulling trolley group 2 separates from the filter plate group 5 and moves to the position of the next filter plate group 5, driving the next filter plate group 5 to move, thus realizing a reciprocating motion. With the action of the plate pulling trolley group 2, multiple filter plate groups 5 can be separated to release the filter cake.

[0085] In some examples, the drawstring 52 is a canvas strap.

[0086] like Figure 3 As shown, optionally, in one embodiment of the present disclosure, ear plates 53 are formed on both sides of each filter plate 51, and a pull rod 55 is formed on the ear plate 53. The two ends of each pull strap 52 are respectively connected to the pull rod 55 of the two filter plates 51 of the corresponding filter plate group 5. Connecting rods 54 are formed on the ear plates 53 on both sides of at least one filter plate 51 in each filter plate group 5, and the connecting rods 54 can be connected to or separated from the pulling plate trolley group 2.

[0087] There are two pull straps 52 between each filter plate group 5, and the two pull straps 52 are respectively located between the two side ears 53 of the two filter plates 51. This arrangement can prevent the pull straps 52 from interfering with the close filtration of the two filter plates 51, and also facilitate the synchronous movement of the two filter plates 51 along the length direction of the beam 1.

[0088] Optionally, in some examples, the pull rod 55 is a vertical rod, and the bottom of the pull rod 55 is connected to the top of the ear plate 53 .

[0089] The connecting rod 54 can be connected to or separated from the plate pulling trolley group 2. It is understandable that when the plate pulling trolley group 2 needs to drive the filter plate group 5 to move, the connecting rod 54 is connected to the plate pulling trolley group 2, and when it is not necessary to drive the filter plate group 5 to move, the connecting rod 54 is separated from the plate pulling trolley group 2. It should be noted that the connecting rods 54 on both sides of at least one filter plate 51 of each filter plate group 5 are simultaneously connected to or separated from the plate pulling trolley groups 2 on the two crossbeams 1 to prevent the filter plate group 5 from tilting.

[0090] In some examples, connecting rods 54 are formed on both side ears 53 of a filter plate 51 in each filter plate group 5. The connecting rods 54 are horizontally arranged and extend away from the ears 53 to facilitate connection with the pulling plate trolley group 2.

[0091] Optionally, in some examples, the first plate pulling trolley 21 and the second plate pulling trolley 22 of the plate pulling trolley group 2 are both rotatably connected with the first reversing block 6 and the second reversing block 7, and the first reversing block 6 and the second reversing block 7 are arranged relative to each other, and the first reversing block 6 and the second reversing block 7 can be rotated to expand or rotated to retract.

[0092] It should be noted that the first reversing block 6 and the second reversing block 7 can be rotated to expand or rotated to retract as needed, so as to drive the filter plate group 5 to move back and forth in the length direction of the beam 1 .

[0093] It is understood that the connecting rod 54 of the above embodiment can be inserted between the first reversing block 6 and the second reversing block 7. When forward movement is required, the first reversing block 6 rotates and retracts, while the second reversing block 7 rotates and extends. At this time, the connecting rod 54 is connected to the second reversing block 7. As the plate pulling trolley assembly 2 moves, the second reversing block 7 generates a driving force to achieve movement of the filter plate assembly 5. When backward movement is required, the first reversing block 6 rotates and extends, while the second reversing block 7 rotates and retracts. At this time, the connecting rod 54 is connected to the first reversing block 6. As the plate pulling trolley assembly 2 moves, the first reversing block 6 generates a driving force to achieve movement of the filter plate assembly 5.

[0094] In some examples, the ear plates 53 on both sides of each filter plate 51 are provided with sliding grooves, and the two ear plates 53 are slidably connected to the two beams 1 through the sliding grooves.

[0095] The principle of the detection system of this filter plate driving device is to first use the first detection sensor 32 to detect the distance D1 between the second detection plate 41 and the first detection sensor 32 and the distance d1 between one side of the filter plate 51 and the first detection sensor 32, and the second detection sensor 42 to detect the distance D2 between the first detection plate 31 and the second detection sensor 42 and the distance d2 between the other side of the filter plate 51 and the second detection sensor 42.

[0096] It should be noted that when the two filter plates 51 in each filter plate group 5 are separated, the two side ends of the filter plate 51 will not block the first detection sensor 32 and the second detection sensor 42. At this time, the distance detected by the first detection sensor 32 is the distance D1 between the second detection plate 41 and the first detection sensor 32, and the distance detected by the second detection sensor 42 is the distance D2 between the first detection plate 31 and the second detection sensor 42.

[0097] When the two filter plates 51 in each filter plate group 5 are close together, the two side ends of the filter plate 51 block the first detection sensor 32 and the second detection sensor 42. At this time, the distance detected by the first detection sensor 32 is the distance d1 between one side of the filter plate 51 and the first detection sensor 32, and the distance detected by the second detection sensor 42 is the distance d2 between the other side of the filter plate 51 and the second detection sensor 42.

[0098] Regardless of whether the distance detected by the first detection sensor 32 is D1 or d1 , and whether the distance detected by the second detection sensor 42 is D2 or d2 , at this time, both filter plates 51 of the filter plate group 5 are not tilted and are in a normal state.

[0099] When at least one filter plate 51 in the filter plate group 5 is tilted, the middle part of the tilted filter plate 51 will block the first detection sensor 32 and / or the second detection sensor 42, so that the distance detected by the first detection sensor 32 is the distance D11 from the middle part of the tilted filter plate 51 to the first detection sensor 32, and the distance detected by the second detection sensor 42 is the distance D22 from the middle part of the tilted filter plate 51 to the second detection sensor 42, wherein D11 is greater than d1 and less than D1, and D22 is greater than d2 and less than D2, thereby realizing the detection of the tilt of the filter plate 51.

[0100] In addition, in order to improve the detection accuracy, an error value D0 can also be introduced, so that it is considered that no matter whether the distance detected by the first detection sensor 32 is D1±D0 or d1±D0, and the distance detected by the second detection sensor 42 is D2±D0 or d2±D0, they are all in a normal state.

[0101] During the actual application of the plate and frame filter press, the filter plate group 5 may have the following fault conditions.

[0102] like Figure 5 As shown, in fault 1, the first and second plate-pulling trolleys 21 and 22 operate out of sync. In this case, the distance detected by the first detection sensor 32 is the distance D11 between the center of the filter plate 51 and the first detection sensor 32, while the distance detected by the second detection sensor 42 is the distance D22 between the center of the tilted filter plate 51 and the second detection sensor 42. The entire filter plate assembly 5 is tilted. When there are two first and second detection sensors 32 and 42, the fundamentally different tilt directions may result in one first detection sensor 32 or one second detection sensor 42 failing to detect data.

[0103] like Figure 6As shown, fault two, the first plate pulling trolley 21 and the second plate pulling trolley 22 run synchronously, but the connecting rod 54 on the filter plate 51 in the filter plate group 5 may fall off from the first plate pulling trolley 21 or the second plate pulling trolley 22. At this time, the distance detected by the first detection sensor 32 is the distance D11 from the middle of the filter plate 51 to the first detection sensor 32, and the distance detected by the second detection sensor 42 is the distance D22 from the middle of the inclined filter plate 51 to the second detection sensor 42, wherein the entire filter plate group 5 is in a tilted state.

[0104] like Figure 7 As shown, fault three, the first plate pulling trolley 21 and the second plate pulling trolley 22 run synchronously, and the connecting rod 54 on the filter plate 51 in the filter plate group 5 remains connected with the first plate pulling trolley 21 or the second plate pulling trolley 22, but a pull belt 52 between the two filter plates 51 in the filter plate group 5 is broken, causing one side of one filter plate 51 to fall off. At this time, the distance detected by the first detection sensor 32 of the two first detection sensors 32 close to the front filter plate 51 may be the distance D1 between the second detection plate 41 and the first detection sensor 32, and the distance detected by the second detection sensor 42 of the two second detection sensors 42 close to the front filter plate 51 may be the distance D2 between the second detection plate 41 and the first detection sensor 32. The measured distance may be the distance D2 between the first detection plate 31 and the second detection sensor 42, indicating that the filter plate 51 near the front end of the filter plate group 5 is in a normal state. The distance detected by the first detection sensor 32 near the rear end filter plate 51 of the two first detection sensors 32 may be the distance D11 between the middle of the filter plate 51 and the first detection sensor 32. The distance detected by the second detection sensor 42 near the rear end filter plate 51 of the two second detection sensors 42 may be the distance D22 between the middle of the filter plate 51 and the first detection sensor 32, indicating that the filter plate 51 near the front end of the filter plate group 5 is in a tilted state.

[0105] This plate and frame filter press adopts a mobile non-contact wireless distance detection method, which can very conveniently detect whether the filter plate 51 is tilted, effectively ensuring the normal operation of the plate and frame filter press, and can detect different possible filter plate 51 tilt faults, so as to discover problems in time and reduce production accidents.

[0106] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0107] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0108] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A filter plate driving device, characterized in that: It includes two oppositely arranged crossbeams, a plate pulling trolley group and a detection system; The plate pulling trolley group includes a first plate pulling trolley and a second plate pulling trolley, the first plate pulling trolley and the second plate pulling trolley are respectively connected to the two cross beams, and the cooperation between the first plate pulling trolley and the second plate pulling trolley is used to drive the filter plate to move along the length direction of the cross beam; The detection system includes a first detection component and a second detection component, wherein the first detection component is connected to the first plate pulling trolley, and the second detection component is connected to the second plate pulling trolley, and the first detection component and / or the second detection component can detect whether the filter plate is tilted; The first detection component includes a first detection plate and a first detection sensor, the first detection plate is connected to the first plate pulling trolley, and the first detection sensor is connected to an end of the first detection plate away from the first plate pulling trolley; The second detection component includes a second detection plate and a second detection sensor, the second detection plate is connected to the second plate pulling trolley, and the second detection sensor is connected to an end of the second detection plate away from the second plate pulling trolley; The detection direction of the first detection sensor is toward the second detection plate and perpendicular to the crossbeam, and the detection direction of the second detection sensor is toward the first detection plate and perpendicular to the crossbeam. When the filter plate is tilted, the filter plate can block the detection end of the first detection sensor and / or the detection end of the second detection sensor.

2. The filter plate driving device according to claim 1, characterized in that: There are two first detection sensors, which are arranged in parallel along the horizontal direction. There are two second detection sensors, which are arranged in parallel along the horizontal direction. Both the first detection sensor and the second detection sensor are constructed as wireless ranging sensors.

3. The filter plate driving device according to claim 1, characterized in that: The horizontal height of the installation position of the first detection sensor is greater than the horizontal height of the installation position of the second detection sensor, and the horizontal height of the installation position of the first detection sensor and the horizontal height of the installation position of the second detection sensor are both higher than the horizontal height of the top of the beam.

4. The filter plate driving device according to claim 1, characterized in that: Each of the crossbeams is provided with a chain, a driven sprocket and a driving sprocket, the driving sprocket and the driven sprocket are respectively rotatably connected to the two ends of the crossbeam, the chain is wound around the driving sprocket and the driven sprocket, and the first pulling plate trolley and the second pulling plate trolley are respectively connected to the chain transmission on the corresponding crossbeam.

5. The filter plate driving device according to claim 4, characterized in that: A first track and a second track are provided on each of the crossbeams. The first track is arranged parallel to the second track and extends along the length direction of the crossbeam. The first track is located above the second track. The chain is connected to the first track and the second track. The first plate pulling trolley and the second plate pulling trolley are respectively slidably connected to the first track on the corresponding crossbeam.

6. The filter plate driving device according to any one of claims 1 to 5, characterized in that: A guide slide is provided on each of the crossbeams. The guide slide extends along the length direction of the corresponding crossbeam. The guide slide is used for sliding connection with the filter plate.

7. A plate and frame filter press, characterized in that: It comprises a filter plate driving device and a plurality of filter plates as described in any one of claims 1 to 6, wherein the plate pulling trolley group of the filter plate driving device can drive the plurality of filter plates to move in the length direction of the crossbeam of the filter plate driving device, and the first detection component and / or the second detection component of the filter plate driving device can detect whether each of the filter plates is tilted.

8. The plate and frame filter press according to claim 7, characterized in that: Every two adjacent filter plates constitute a filter plate group, and a pull belt is provided between the two filter plates in each filter plate group to enable the two filter plates in each filter plate group to move synchronously. Both sides of each filter plate group are slidably connected to the two cross beams, and the pulling plate trolley group can be respectively connected to or separated from each filter plate group, so that the pulling plate trolley group can respectively drive each filter plate group to move along the length direction of the cross beam.

9. The plate and frame filter press according to claim 8, characterized in that: Ear plates are formed on both sides of each filter plate, and pull rods are formed on the ear plates. The two ends of each pull belt are respectively connected to the pull rods of the two filter plates of the corresponding filter plate group. Connecting rods are formed on the ear plates on both sides of at least one filter plate in each filter plate group, and the connecting rods can be connected to or separated from the pulling plate trolley group.

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