CN114288721B

CN114288721B - Filter plate lifting device of filter press

Info

Publication number: CN114288721B
Application number: CN202111650495.9A
Authority: CN
Inventors: 庞碧达; 庞璐楠; 王金伟; 洪印涛
Original assignee: Quanzhou Chuanglu Machinery Industry And Trade Co ltd
Current assignee: Fujian Chuangli Machinery Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2023-01-31
Anticipated expiration: 2041-12-30
Also published as: CN114288721A

Abstract

The lifting device for the filter plate of the filter press is provided with the lifting driving device, the left driving guide rod and the right driving guide rod, all driving structures are mutually independent and have definite division of labor, the lifting driving device is used for lifting the filter pressing plate on the lifting platform, and the left driving guide rod and the right driving guide rod are used for driving the filter pressing plate to incline and return, so that when the lifting device lifts the filter pressing plate to the cross beam under the cross beam, the width of lugs at two sides of the filter plate can be smaller than the gap between the two cross beams, and the lifting of the filter plate is rapid and intelligent.

Description

Filter plate lifting device of filter press

Technical Field

The invention relates to the technical field of lifting, in particular to a lifting device for a filter plate of a filter press.

Background

The box-type filter press is a common solid-liquid separation equipment, and has the advantages of high filtration pressure, large single-machine filtration area, low filter cake liquid content, light filter plate weight, low maintenance and operation cost and the like, so the application of the box-type filter press is wide. The box-type filter press comprises a group of filter chambers formed by alternately arranged filter plates and filter frames, through holes are formed in the filter frames and the filter plates, a complete channel is formed after assembly, suspension, washing water and filtrate can be introduced, material liquid to be filtered is fed into each filter chamber under the pressure action of a material conveying pump, solid and liquid are separated through a filter medium, filter residues are formed on filter cloth until the filter chambers are full of the filter medium, and filter cakes are formed. The filter plate is a core component of the filter press, when sewage formed by mixing solid and liquid passes through the filter cloth of the filter plate, the solid stays on the filter cloth to gradually form a filter cake, filtrate passes through the filter cloth and then becomes clear liquid without the solid, and when the filtrate does not flow out any more, the filter plate is opened to take out the filter cake. Because residual filter residues are often adhered to the filter cloth, the filter plate is often required to be deeply cleaned after being detached, in the prior art, the most common mode for installing and detaching the filter plate is to manually convey and install the filter plate or detach the filter plate, and the mode is labor-consuming and low in efficiency, so that in the prior art, as in patent document 1, a hoisting mechanism for replacing the filter cloth of the filter plate of the filter press is disclosed, when the filter plate is detached or replaced, a clamp is used for clamping the filter plate, and then the filter plate is hoisted by using a hoisting block, the replacing mode avoids manual conveying, but only a single filter plate can be replaced, the efficiency is low, and as the hoisting block is used for hoisting, the problems of unstable hoisting, large occupied space of hoisting equipment and the like exist; as patent document 2 again, it discloses a novel work of fine arts hangs display device, among this display device, can utilize drive chain to push the drawing that needs to hang to elevating gear position department, then realized the automatic function of hanging of drawing through the cooperation of a series of mechanical parts structure, though the device can realize the full-automatic process of drawing from carrying to hanging, but, all can only hang the operation to a drawing at every turn, its installation lifting efficiency is lower, and above all elevating gear's structure is very complicated, the later maintenance cost is higher, device fault rate that comes thereupon also can corresponding improvement.

[ patent document 1] CN110302568A;

[ patent document 2] CN112661060A.

In summary, in the prior art, the assembly and disassembly of the filter plates of the filter press are only considered to be performed by lifting from the top of the filter press, and there is no lifting device that can assemble and disassemble the filter plates from the bottom of the filter press, nor is there a lifting device that can assemble or disassemble a series of or all the filter plates of the filter press together.

Disclosure of Invention

In order to overcome the deficiency of the assembly of the filter plate of the existing filter press, the invention provides a technical scheme, a filter plate lifting device of the filter press, comprising: the lifting device comprises a base, a moving device, a jacking driving device, a left driving guide rod, a right driving guide rod, a lifting platform, a front driving belt wheel structure, a rear driving belt wheel structure, a plurality of front filter pressing plate supporting blocks and a plurality of rear filter pressing plate supporting blocks, wherein the moving device is arranged at the bottom of the base, the jacking driving device is arranged between the base and the lifting platform and used for driving the lifting platform to lift, the moving device is used for moving the base, the left driving guide rod and the right driving guide rod are fixedly arranged on the base after penetrating through the lifting platform, the left driving guide rod comprises an upper driving rod part I and a lower telescopic sleeve part I, the right driving guide rod comprises an upper driving rod part II and a lower telescopic sleeve part II, the lower telescopic sleeve part I and the lower telescopic sleeve part II are hydraulic cylinders, and a speed difference can be generated between the hydraulic telescopic cylinders and the jacking driving device, so that the first upper driving rod part can intermittently drive the front driving belt wheel structure, the front driving belt wheel structure can slide relative to the lifting platform in the front-back direction, the second upper driving rod part can intermittently drive the rear driving belt wheel structure, the connecting line of the central lines of the left driving guide rod and the right driving guide rod passes through the center of the lifting platform, the included angle between the connecting line and the transverse axis of the lifting platform is beta, the beta is an acute angle, when the first upper driving rod part is meshed with the front driving belt wheel structure, the belt of the front driving belt wheel structure transversely moves for a certain distance relative to the belt of the rear driving belt wheel structure and also slides inwards for a certain length in the longitudinal direction so as to drive the filter pressing plate on the lifting platform to incline for a certain angle delta, when the second upper driving rod part is meshed with the front driving belt wheel structure, the belt of the front driving belt wheel structure transversely moves for the same distance as the certain distance in the reverse direction relative to the belt of the rear driving belt of the front driving belt wheel structure, the filter pressing plate on the lifting platform is driven to rotate reversely by a certain angle delta by sliding outwards in the longitudinal direction by the length same as the certain length, and finally the filter pressing plate returns to the right position;

preferably, the front driving belt wheel structure comprises a front driving wheel I, a rear driving wheel I, a front sleeve, a rear sleeve, a front driving wheel, a rear driving wheel and a conveying belt, the front driving wheel I is fixedly arranged on the front sleeve, the front sleeve is rotatably arranged in the lifting platform and can slide along an axis, a threaded sleeve is arranged in the end part of the front sleeve, the front driving wheel is fixedly arranged on the front sleeve, the rear driving wheel I is fixedly arranged on the rear sleeve, the rear sleeve is rotatably arranged in the lifting platform and can slide along the axis, a threaded sleeve is arranged in the end part of the rear sleeve, the rear driving wheel is fixedly arranged on the rear sleeve, the conveying belt is arranged between the front driving wheel I and the rear driving wheel I, the front pressing support block is arranged on the conveying belt, the rear driving belt wheel structure comprises a front driving wheel II, a rear driving wheel II, a front stretching rod, a rear stretching rod and a conveying belt, the front driving wheel II is fixedly arranged on the front stretching rod, the front stretching rod is fixedly arranged in the lifting platform, the front stretching rod end part of the front stretching rod is fixedly arranged on the rear stretching rod, the rear screw thread part of the front stretching rod is arranged on the lifting platform, the rear support block, the conveying belt and the rear support block are meshed with the conveying belt;

preferably, the first upper driving rod part comprises a first polished rod and a first driving thread part, the second upper driving rod part comprises a second polished rod and a second driving thread part, the first driving thread part can be meshed with the front driving wheel, the second driving thread part can be meshed with the rear driving wheel, and the height of the first driving thread part is different from that of the second driving thread part;

preferably, when the first driving screw thread part is meshed with the front driving wheel, the front driving wheel can rotate by a certain angle gamma, and meanwhile, the front driving wheel can drive the front sleeve to rotate, so that the threaded sleeve rotates relative to the screw thread part, the front driving wheel is driven to slide inwards by a certain distance s, the inclination of the filter pressing plate by a certain angle delta is adapted, meanwhile, after the first driving wheel slides by the distance s, the first driving screw thread part is separated from the meshing of the front driving wheel, meanwhile, the rear driving wheel slides to a position where the second driving screw thread part can be meshed with the second driving screw thread part, the lifting platform continues to rise by a certain height, so that after a lug of the filter pressing plate passes through a filter plate supporting beam, the second driving screw thread part is meshed with the rear driving wheel, the rear driving wheel is driven to rotate by the angle gamma, meanwhile, the rear driving wheel slides outwards by the distance s, the rotation of the filter pressing plate by the angle delta, so that the filter pressing plate is aligned, finally, the jacking driving device is driven to descend, and finally, the filter pressing plate stays on a filter plate supporting beam of the filter press;

preferably, the number of the first driving thread parts on the first upper driving rod part is two, and the thread screwing directions are opposite; two driving thread parts II are arranged on the upper driving rod part II, and the thread turning directions are opposite; the two driving thread parts I are respectively positioned at the upper side and the lower side of the lifting platform, the two driving thread parts II are respectively positioned at the upper side and the lower side of the lifting platform, and the heights of the driving thread parts I and the driving thread parts II are different;

preferably, support rollers are provided between the belts to enhance the support of the belts against the filter press plates without transmitting deformation easily.

Preferably, the hydraulic telescopic cylinder and the jacking driving device are driven to lift by using a hydraulic source, and the lifting action of each hydraulic telescopic cylinder is completely independent.

Preferably, the front driving wheel and the rear driving wheel are worm wheels, and the first driving thread part and the second driving thread part are both worms.

Preferably, the front filter pressing plate supporting block and the rear filter pressing plate supporting block are arranged in a flush manner along the front-rear direction of the lifting platform.

Preferably, the left driving guide rod and the right driving guide rod have the same height, and when the first lower telescopic sleeve part and the second lower telescopic sleeve part are contracted, the left driving guide rod and the right driving guide rod are both lower than the filter plate support beam of the filter press.

The beneficial effects of the invention are as follows:

1) The lifting device of the filter press filter plate is a lifting device special for assembling the filter press plate of the filter press, and can assemble the filter press plate on the filter press at one time, and the filter press plate is lifted by directly lifting from the bottom of the filter press, so that the filter press plate can be safely and quickly lifted to the corresponding position of the filter press, and the lifting device is efficient and quick;

2) Furthermore, the lifting device of the invention uses a hydraulic or pneumatic lifting cylinder to lift the filter pressing plate, thus the filter pressing plate can be lifted well and safely, and meanwhile, in order to ensure that the filter pressing plate can smoothly pass through a cross beam of a filter press, when the lifting device lifts the filter pressing plate, when the position of the cross beam is not reached, the filter pressing plate and the cross beam are mutually vertical when viewed from the top, and when the cross beam is reached, the filter pressing plate and the cross beam are mutually in an acute angle relationship when viewed from the top, therefore, the filter pressing plate can smoothly pass through the two cross beams, after the two hanging plates of the cross beam on which the filter pressing plate is hung pass through the cross beam, the filter pressing plate returns to the right, then the lifting height of the filter pressing plate is reduced, and finally the filter pressing plate is hung on the two cross beams to finish the lifting of the filter pressing plate;

3) The top of the plurality of filter pressing plates is also detachably provided with a filter pressing plate position adjusting device, the filter pressing plates can be closed, pressed and opened and separated through the adjusting device, the structure of the adjusting device is a scissor structure, the opening and closing distance among the filter pressing plates can be ensured to be consistent through the scissor structure, after the filter pressing plates are placed on the cross beam through the lifting device, the filter pressing plate position adjusting device starts to act to complete the automatic closing among the filter pressing plates, and the scissor structure is applied, so that the filter pressing plates can easily realize the matching action with the lifting device when needing to be disassembled in the subsequent work, the assembly and the disassembly of the filter pressing plates can be automatically completed, and the automation and the intelligence of the equipment are further improved;

4) Furthermore, the power output of the inclination and the centering of the filter pressing plate is provided by a lifting cylinder, the inclination and the centering of the filter pressing plate can be automatically realized by the lifting of the lifting cylinder, the inclination and the centering of the filter pressing plate are realized by the rotation difference between two transmission chain wheels supporting the filter pressing plate, and the two transmission chain wheels can be close to or far away from each other, so that a sliding sleeve structure connecting the two transmission chain wheels is arranged into a thread or screw rod connection, the two sliding sleeves rotate relatively after the rotation difference is generated between the chain wheels, and finally the two sliding sleeves approach to or separate from each other, thereby realizing the inclination action between the lifted filter pressing plates;

5) Furthermore, the lifting device comprises a left driving guide rod and a right driving guide rod, each guide rod is provided with a driving thread or a driving gear structure, and the driving thread or the driving gear structure can be meshed with the thread or the gear on the sliding sleeve at a proper position, so that the power of the lifting cylinder can be transmitted to the chain wheel;

6) Furthermore, in the lifting device, the lower telescopic sleeve parts of the lifting driving device, the left driving guide rod and the right driving guide rod all select hydraulic cylinder driving modes to act, the action time and the action mode of each hydraulic cylinder are completely controllable, technicians in the field can completely realize different action processes through the action combination of each hydraulic cylinder, and the rotation and the return action of the filter pressing plate can be realized while the filter pressing plate is lifted by setting a preset hydraulic cylinder action program, so that the filter pressing plate can quickly and efficiently penetrate through the cross beam, and the automatic unloading can be realized completely by controlling the lengths of the left driving guide rod and the right driving guide rod and the speed difference between the hydraulic cylinders when the filter pressing plate needs to be unloaded.

Drawings

FIG. 1 is a schematic view of an assembled filter press of the present invention (the spacer structure is not shown);

FIG. 2 is a schematic structural view of a filter plate lifting device according to the present invention;

FIG. 3 is a schematic view showing only the left drive guide bar with the drive pulley structure removed from the belt;

FIG. 4 is a schematic view of the front drive wheel I and the front sleeve of FIG. 3 with the front sleeve removed;

FIG. 5 is a driving schematic diagram of a driving pulley structure in the elevating platform;

FIG. 6 is a schematic view of the left and right drive guides;

FIG. 7 is a schematic view of a filter press plate;

fig. 8 is a schematic structural view of the filter press plate spacer as viewed from the bottom;

fig. 9 is a schematic structural view of the filter pressing plate after the filter pressing plate positioning frame is matched with the filter pressing plate.

Description of the reference symbols

1. A left support frame; 2. a right support frame; 3. pressing the oil cylinder; 4. a compression plate; 5. a thrust plate; 6. a filter plate support beam; 7. pressing the filter plate; 8. hanging a lug; 9. a filter plate lifting device; 10. a base; 11. a mobile device; 12. a jacking driving device; 13. a left drive guide; 14. a right drive guide; 15. a lifting platform; 16. a front drive pulley structure; 17. a rear drive pulley structure; 18. a front filter press plate support block; 19. a rear filter press plate support block; 20. a first front driving wheel; 21. a first rear driving wheel; 22. a front driving wheel II; 23. a second rear driving wheel; 24. a front sleeve; 25. a rear sleeve; 26. a forward extension rod; 27. then extending into the rod; 28. a threaded portion; 29. a threaded sleeve; 30. a front drive wheel; 31. a rear drive wheel; 32. a first lower telescopic sleeve part; 33. an upper driving rod part I; 34. a second lower telescopic sleeve part; 35. an upper driving rod part II; 36. a polish rod I; 37. a first driving thread part; 38. a polish rod II; 39. a second driving thread part; 40. positioning holes; 41. a positioning frame; 42. a fork shearing frame; 43. positioning pins; 44. a conveyor belt; 45. a support base plate; 46. a left support plate; 47. a right support plate; 48. a filter plate body.

Detailed Description

The invention is further illustrated by the following examples, but is not intended to be limited in any way, and any modifications or alterations based on the teachings of the invention are intended to fall within the scope of the invention.

A filter press, as shown in figures 1, 7-9, comprising: the filter pressing device comprises a left support frame 1, a right support frame 2, a pressing oil cylinder 3, a pressing plate 4, a thrust plate 5, a filter plate supporting beam 6 and a plurality of filter pressing plates 7, wherein two ends of the filter plate supporting beam 6 are fixedly connected with the left support frame 1 and the right support frame 2 respectively, the pressing oil cylinder 3 is arranged on the left support frame 1, the tail end of the pressing oil cylinder is fixedly provided with the pressing plate 4, the thrust plate 5 is arranged close to the right support frame 2, the plurality of filter pressing plates 7 are arranged between the pressing plate 4 and the thrust plate 5, each filter pressing plate 7 comprises a filter plate main body 48, a hanging lug 8 and a positioning hole 40, the pressing plate 4, the thrust plate 5 and the plurality of filter pressing plates 7 are arranged on the filter plate supporting beam 6 in a sliding mode through the hanging lugs 8, the positioning holes 40 are formed in the top of the filter pressing plates 7 and used for being matched with a positioning frame 41, and the filter pressing plates 7 are assembled on the filter plate supporting beam 6 through a filter plate lifting device 9 and the positioning frame 41, before the filter pressing plates 7 are assembled, two ends of the bottoms of filter plate main bodies 48 of a plurality of filter pressing plates 7 are clamped on the filter plate lifting devices 9, the positioning frames 41 are assembled at the top ends of the filter plate main bodies 48, when the filter pressing plates 7 are assembled, the filter plate lifting devices 9 drive the filter pressing plates 7 to deflect for a certain angle through lifting actions so that the two hangers 8 penetrate through the filter plate supporting beams 6, then the filter pressing plates 7 are driven to return through the lifting actions, and finally the filter pressing plates 7 descend so that the two hangers 8 are hung on the filter plate supporting beams 6, therefore, the filter pressing plates 7 are placed on the filter plate supporting beams 6, after the filter plate lifting devices 9 are separated from the filter pressing plates 7, gaps of the filter pressing plates 7 are reduced through the positioning frames 41, the pressing cylinders 3 are driven to push the pressing plates 4 to press the filter pressing plates 7, and the assembly of the filter press is completed.

Preferably, the positioning frame 41 includes a fork frame 42 and positioning pins 43, the fork frame 42 has a fork structure formed by hinging a plurality of straight rods, the positioning pins 43 are disposed at the hinging points of the central axis of the fork frame 42, the number of the positioning pins 43 corresponds to the number of the filter press plates 7, and the positioning pins 43 can be inserted into the positioning holes 40, so that the gap between the filter press plates 7 can be adjusted by adjusting the extension and contraction of the fork frame 42.

Preferably, in order to automatically complete the gap between the filter press plates 7 and also to adapt the distance between the filter press plates 7 placed on the filter plate lifting device 9, a driving mechanism is further provided on the positioning frame 41, wherein the driving mechanism can be a cylinder, a threaded screw, a rack and pinion structure, and the like, as long as the telescopic adjustment of the fork 42 can be realized. Preferably, the driving mechanism can be disposed between the hinge points located at the central axis of the fork arm 42, or disposed between the hinge points far away from the central axis of the fork arm 42, and the structure and the arrangement position of the driving mechanism are common knowledge in the art, and are not the focus of the present invention, and thus are not described in detail.

As shown in fig. 2 to 6, the filter plate lifting device 9 includes: base 10, mobile device 11, jacking drive arrangement 12, left drive guide arm 13, right drive guide arm 14, lift platform 15, front drive belt pulley structure 16, back drive belt pulley structure 17, a plurality of preceding filter-pressing board supporting blocks 18 and a plurality of back filter-pressing board supporting blocks 19, mobile device 11 sets up in the bottom of base 10, and jacking drive arrangement 12 bottom is fixed to be set up on base 10, and the top is fixed to be provided with lift platform 15, and jacking drive arrangement 12 is used for driving lift platform goes up and down, and mobile device 11 is used for removing base 10, and left drive guide arm 13 and right drive guide arm 14 pass lift platform 15 after fixed set up on base 10, left drive guide arm 13 and right drive guide arm 14 transversely set up along the left and right both ends of lift platform 15, front drive belt pulley structure 16 and back belt pulley structure 17 are along the vertical setting in the front and back both ends of lift platform 15, the front filter-pressing supporting blocks 18 are arranged on the front drive belt wheel structure 16, the rear filter-pressing supporting blocks 19 are arranged on the rear drive belt wheel structure 17, two ends of the bottom of the filter-pressing plate 7 are respectively clamped on the front filter-pressing supporting blocks 18 and the rear filter-pressing supporting blocks 19, the left drive guide rod 13 and the right drive guide rod 14 are provided with drive thread structures capable of driving the front drive belt wheel structure 16 and the rear belt wheel structure 17 to relatively slide, when the topmost end of the filter-pressing plate 7 is flush with the bottommost end of the filter-pressing supporting beam 6, the drive thread structures drive the front drive belt wheel structure 16 and the rear belt wheel structure 17 to relatively slide so as to enable the filter-pressing plate 7 supported on the front filter-pressing supporting blocks 18 and the rear filter-pressing supporting blocks 19 to deflect to a certain extent, so that the width of the two lugs 8 is not more than that of the two supporting beams 6, after the lugs 8 smoothly pass through the filter-pressing supporting beams 6, the driving thread structure drives the front driving belt wheel structure 16 and the rear belt wheel structure 17 to perform reverse relative sliding, so that the filter pressing plate 7 returns to the right, the jacking driving device 12 stops lifting, then the jacking driving device 12 is driven to descend, and the two hangers 8 are hung on the filter plate supporting beam 6.

Preferably, the front driving pulley structure 16 includes a front driving wheel 20, a rear driving wheel 21, a front sleeve 24, a rear sleeve 25, a front driving wheel 30, a rear driving wheel 31 and a belt 44, the front driving wheel 20 is fixedly disposed on the front sleeve 24, the front sleeve 24 is rotatably disposed in the lifting platform 15, the front sleeve 24 can slide along the axis, a threaded sleeve 29 is disposed in the end portion of the front sleeve 24, the front driving wheel 30 is fixedly disposed on the front sleeve 24, the rear driving wheel 20 is fixedly disposed on the rear sleeve 25, the rear sleeve is rotatably disposed in the lifting platform 15, the rear sleeve 25 can slide along the axis, a threaded sleeve 29 is disposed in the end portion of the rear sleeve 24, the rear driving wheel 30 is fixedly disposed on the rear sleeve 25, the belt 44 is disposed between the front driving wheel 20 and the rear driving wheel 21, the front filter-press plate support block 18 is disposed on the belt 44, the rear driving belt wheel structure 17 comprises a front driving wheel II 22, a rear driving wheel II 23, a front extension rod 26, a rear extension rod 27 and a conveying belt 44, the front driving wheel II 22 is fixedly arranged on the front extension rod 26, the front extension rod 26 is fixedly arranged in the lifting platform 15, a threaded part 28 is arranged outside the end part of the front extension rod 26, the rear driving wheel II 23 is fixedly arranged on the rear extension rod 27, the rear extension rod 27 is fixedly arranged in the lifting platform 15, a threaded part 28 is arranged outside the end part of the rear extension rod 27, the conveying belt 44 is arranged between the front driving wheel II 22 and the rear driving wheel II 23, the rear pressure filter plate supporting block 19 is arranged on the conveying belt 44, the threaded part 28 is meshed with a threaded sleeve 29, the connecting line of the central lines of the left driving guide rod 13 and the right driving guide rod 14 passes through the center of the lifting platform 15, the included angle between the central line of the left driving guide rod 13 and the right driving guide rod 14 and the transverse axis of the lifting platform 15 is beta, the beta is an acute angle between the transverse axis of the lifting platform 15, the beta is 5-30 degrees, the beta is preferably, so that the left and right drive guide rods 13 and 14 can be intermittently engaged with the front drive wheels 30 or the rear drive wheels 31, and the drive screw structure drives the filter press plate to deflect.

Preferably, the left driving guide rod 13 comprises a first upper driving rod part 33 and a first lower telescopic sleeve part 32, the right driving guide rod 14 comprises a second upper driving rod part 35 and a second lower telescopic sleeve part 34, the first upper driving rod part 33 comprises a first polish rod 36 and a first driving thread part 37, the second upper driving rod part 35 comprises a second polish rod 38 and a second driving thread part 39, the first lower telescopic sleeve part 32 and the second lower telescopic sleeve part 34 have the same structure, and are telescopic cylinder structures formed by sleeving a plurality of sleeves, and the sleeves can only slide mutually and cannot rotate relative to an axis, and the sleeve structure is common knowledge in the field, so the description is omitted. The upper driving rod part I33 and the upper driving rod part II 35 are respectively arranged at the upper ends of the lower telescopic sleeve part I32 and the lower telescopic sleeve part II 34, the driving thread part I37 can be meshed with the front driving wheel 30, the driving thread part II 39 can be meshed with the rear driving wheel 31, and the height of the driving thread part I36 is different from that of the driving thread part II 39.

Preferably, in order to enable the lower telescopic sleeve portion 32 and the lower telescopic sleeve portion two 34 to extend adaptively when the lifting platform 15 is lifted, a spring-driven clamping mechanism is arranged on the lifting platform 15 and clamped on the upper driving rod portion one 33 and the upper driving rod portion two 35, so that the lower telescopic sleeve portion one 32 and the lower telescopic sleeve portion two 34 can drive the telescopic sleeves to extend when extending, and after the extension is completed, the jacking driving device 12 continues jacking to enable the upper driving rod portion one 33 and the upper driving rod portion two 35 to overcome the spring force of the clamping mechanism to slide.

Preferably, when the first driving screw 37 engages with the front driving wheel 30, it can make the front driving wheel 30 rotate a certain angle γ, and at the same time, the front driving wheel 30 can also drive the front sleeve 24 to rotate, so that the threaded sleeve 29 rotates relative to the threaded portion 28, so as to drive the first front driving wheel 20 to slide a certain distance s inwards, and adapt to the inclination of the filter pressing plate 7 by a certain angle δ, and at the same time, after the first front driving wheel 20 slides a distance s, the first driving screw 37 disengages from the engagement of the front driving wheel 30, and at the same time, the rear driving wheel 31 slides to a position capable of engaging with the second driving screw 39, and the lifting platform 15 continues to lift a certain height, so that after the hangers of the filter pressing plate 7 pass through the filter plate supporting beam 6, the second driving screw 39 engages with the rear driving wheel 31, and drives the rear driving wheel 30 to rotate a- γ angle, and at the same time, the first rear driving wheel 31 slides outwards by a distance s, and adapts to the rotation of the filter pressing plate 7 by- δ, so as to make the filter pressing plate 7 return to the filter pressing plate supporting beam 6, and finally, the lifting driving device 12 is driven to descend, and finally, and the filter pressing plate 7 stays on the filter plate supporting beam 6.

Preferably, in order to make the filter plate lifting device 9 also suitable for detaching the filter press plate 7, a spare sleeve is arranged in both the first lower telescopic sleeve part 32 and the second lower telescopic sleeve part 34, and is in a locking state when the filter press plate is assembled, for example, the locking state can be realized by a pin controlled by a solenoid valve, when the filter press plate is assembled, the pin is locked on the spare sleeve and an outermost sleeve part of the first lower telescopic sleeve part 32 and the second lower telescopic sleeve part 34, and when the filter press plate is required to be detached, the pin is in a retraction state, at this time, the lifting heights of the first lower telescopic sleeve part 32 and the second lower telescopic sleeve part 34 can be increased, and the first upper driving rod part 33 and the second upper driving rod part 39 operate only after the filter press plate 7 is separated from the lifting lugs 8 on the filter plate supporting beam 6, so that the filter press plate can be smoothly detached.

Preferably, the lower and

second sleeves

32, 34 may also be of a normal fixed rod structure, and have a height not higher than the filter plate support beam 6, so that the upper and

second driving rods

33, 35 are detachably connected to the fixed rod, and after the lifting device 9 is located in the filter plate support beam 6, the upper and

second driving rods

33, 35 are assembled thereon to lift.

Preferably, the first lower telescopic sleeve part 32 and the second lower telescopic sleeve part 34 may also be selected as hydraulic telescopic cylinder structures, and the assembly or disassembly of the filter pressing plate is realized together with the jacking driving device 12 by controlling the extension and retraction of the hydraulic telescopic cylinder structures. Preferably, the hydraulic telescopic cylinder structure can only perform relative sliding and can not rotate relatively. Preferably, the hydraulic telescopic cylinder structure and the jacking driving device 12 are driven to lift by using a hydraulic source, and the lifting action of each hydraulic telescopic cylinder is completely independent.

Preferably, to accommodate tilting and righting of the filter press plates, both the front filter press plate support block 18 and the rear filter press plate support block 19 are rotatably disposed on the conveyor belt such that they can rotate along the longitudinal axis.

Preferably, the front filter press plate support block 18 and the rear filter press plate support block 19 are identical in structure and each include a support base plate 45 and left and

right support plates

46 and 47 provided on both sides of the support base plate. Preferably, the left and

right support plates

46 and 47 have the same height as the filter press plates 7. Preferably, support roll or support beam structures are also provided between the belts in order to enable the belts to support the filter press plates 7 well.

Preferably, the jacking driving device 12 is selected to be a hydraulic cylinder or a pneumatic cylinder; preferably, the jacking driving devices 12 are arranged at one and the center of the base 10; preferably, the front stretching rod 26 and the rear stretching rod 27 can be rotatably arranged in the lifting platform 15, and the fixing is realized by arranging a brake mechanism outside the front stretching rod 26 and the rear stretching rod 27; preferably, in the initial state, the left drive guide rod 13 and the right drive guide rod 14 are at the same height, and are both lower than the height of the filter plate support beam 6. Preferably, in order to ensure the safety of lifting the filter press plate, an electromagnetic braking structure may be provided outside the front sleeve 24 and the rear sleeve 25, so that the electromagnetic braking structure is matched with the actions of the left drive guide rod 13 and the right drive guide rod 14, the front sleeve 24 and the rear sleeve 25 are locked when the left drive guide rod 13 and the right drive guide rod 14 are not driven, and the electromagnetic braking structure is in an open state when the left drive guide rod 13 and the right drive guide rod 14 are driven.

Preferably, the operation of the front driving wheel 30 and the first driving screw part 37 and the operation of the rear driving wheel 31 and the second driving screw part 39 can be realized by a worm gear structure, and of course, the operation can also be realized by a gear screw meshing structure.

Preferably, the front filter press plate support block 18 and the rear filter press plate support block 19 are disposed flush with each other in the front-rear direction of the elevating platform 15. Preferably, in order to enable the filter plate lifting device to assemble and disassemble filter plates, the first driving thread parts 37 on the first upper driving rod parts 33 are two, and the thread directions are opposite; two driving thread parts 39 on the upper driving rod part 35 are provided, and the thread directions are opposite; the two first driving screw thread portions 37 are respectively located at the upper and lower sides of the lifting platform 15, and the two second driving screw thread portions 39 are respectively located at the upper and lower sides of the lifting platform 15, and have different heights.

The filter press filter plate lifting device of the invention has the following use process: when the filter pressing plate is assembled: the method comprises the steps of placing filter pressing plates to be assembled on a front filter pressing plate supporting block 18 and a rear filter pressing plate supporting block 19 of a filter pressing plate lifting device 9 side by side, adjusting the telescopic degree of a positioning frame, clamping the filter pressing plates at the top ends of the filter pressing plates, moving the filter pressing plate lifting device 9 to be under a filter plate supporting beam 6 of a filter press, enabling the longitudinal projection of the filter plate supporting beam 6 to cover the filter pressing plates 7, enabling the connecting line of left and right lugs 8 of the filter pressing plates 7 to be vertical to the axis of the filter plate supporting beam 6, starting a jacking driving device 12, a lower telescopic sleeve part 32 and a lower telescopic sleeve part 34, enabling a lifting platform 15 to be jacked, enabling the lifting speeds of the lower telescopic sleeve part 32 and the lower telescopic sleeve part 34 to be the same as the lifting speed of the jacking driving device 12, and enabling the action speeds of the lower telescopic sleeve part 32 and the lower telescopic sleeve part 34 to be larger than the lifting driving device 12 after the upper ends of the filter pressing plates are flush with the lower ends of the filter pressing plate supporting beam 6, lifting is continuously carried out by using the jacking driving device 12, the left driving guide rod 13 and the right driving guide rod 14 slide relative to the lifting platform 15, a driving screw thread part 37 at the lower part is meshed with the front driving wheel 30 to drive the front driving wheel 30 to rotate, so that the conveying belt of the front driving belt wheel mechanism 16 slides for a certain distance relative to the conveying belt of the rear driving belt wheel mechanism 16, the filter pressing plate is inclined, meanwhile, the screw sleeve 29 is meshed with the screw thread part 28 to rotate, the front driving wheel part 20 drives the conveying belt of the front driving belt wheel mechanism 16 to be close to the conveying belt of the rear driving belt wheel mechanism 16, so as to adapt to the inclination of the filter pressing plate, meanwhile, the rear driving wheel 31 slides to a position which can be meshed with the right driving guide rod 14, the inclined filter pressing plate enables two lugs to smoothly pass through the filter plate 6, and the lowest ends of the lugs are higher than the highest ends of the filter plate 6, the rear driving wheel 31 is meshed with a second driving thread part 39 at the upper end, the second driving thread part 39 enables the rear driving wheel 31 to rotate reversely, meanwhile, the thread sleeve 29 rotates relative to the thread part 28, so that the first rear driving wheel 21 slides towards the far end relative to the second rear driving wheel 23, and finally the filter pressing plate is enabled to return to the right position, then the jacking driving device 12, the first lower telescopic sleeve part 32 and the second lower telescopic sleeve part 34 are driven to synchronously descend, and finally the filter pressing plate is hung on the filter pressing plate supporting beam 6, at the moment, the contraction of the positioning frame is adjusted, so that the filter pressing plates are close to each other, meanwhile, the pressing oil cylinder is driven to extend out, and finally the pressing plate is enabled to press and press the filter pressing plate, and the assembly of the filter pressing plate is completed; when the filter pressing plate needs to be dismounted: the precursor pressing oil cylinder is retracted, then the positioning frame is adjusted to be extended, so that the distance between the filter pressing plates is the same as the distance between the supporting blocks, then the filter plate lifting device 9 is conveyed to the lower end of the cross beam to be aligned with the filter pressing plates, the lifting driving device 12, the first lower telescopic sleeve part 32 and the second lower telescopic sleeve part 34 are driven at the same time, so that the lifting platform 15 is lifted, the lifting speeds of the first lower telescopic sleeve part 32, the second lower telescopic sleeve part 34 and the lifting driving device 12 are the same, until the lower end part of the filter pressing plate 7 is higher than the upper end part of the filter plate supporting beam 6, so that the lifting driving device 12, the first lower telescopic sleeve part 32 and the second lower telescopic sleeve part 34 are lowered, the moving speeds of the first lower telescopic sleeve part 32 and the second lower telescopic sleeve part 34 are higher than the lifting driving device 12, the left driving guide rod slides downwards relative to the lifting platform 15, and the first upper driving guide rod 37 is meshed with the front driving wheel 30, the front driving wheel 30 is driven to rotate, so that the conveying belt of the front driving belt wheel mechanism 16 slides a certain distance relative to the conveying belt of the rear driving belt wheel mechanism 16, so that the filter pressing plate inclines, meanwhile, the threaded sleeve 29 is meshed with the threaded portion 28 to rotate, so that the first front driving wheel 20 drives the conveying belt of the front driving belt wheel mechanism 16 to approach relative to the conveying belt of the rear driving belt wheel mechanism 16, so as to adapt to the inclination of the filter pressing plate, meanwhile, the rear driving wheel 31 slides to a position capable of being meshed with the right driving guide rod 14, the inclined filter pressing plate enables two hangers to smoothly pass through the filter plate supporting beam 6, after the highest end of the hanger is lower than the lowest end of the filter plate supporting beam 6, the rear driving wheel 31 is meshed with the second driving threaded portion 39 at the lower end, the second driving threaded portion 39 enables the rear driving wheel 31 to rotate reversely, and meanwhile, the threaded sleeve 29 rotates relative to the threaded portion 28, and the first rear driving wheel 21 slides towards the far end relative to the second rear driving wheel 23, so that the filter pressing plate is finally aligned, then the jacking driving device 12, the first lower telescopic sleeve part 32 and the second lower telescopic sleeve part 34 are driven to synchronously descend, and finally the filter pressing plate is disassembled.

Claims

1. A filter press filter plate lifting device comprising: the lifting device comprises a base (10), a moving device (11), a jacking driving device (12), a left driving guide rod (13), a right driving guide rod (14), a lifting platform (15), a front driving belt wheel structure (16), a rear driving belt wheel structure (17), a plurality of front filter press plate supporting blocks (18) and a plurality of rear filter press plate supporting blocks (19), wherein the moving device (11) is arranged at the bottom of the base (10), the jacking driving device (12) is arranged between the base (10) and the lifting platform (15), the jacking driving device (12) is used for driving the lifting platform to lift, the moving device (11) is used for moving the base (10), the left driving guide rod (13) and the right driving guide rod (14) are fixedly arranged on the base (10) after penetrating through the lifting platform (15), the left driving guide rod (13) comprises an upper driving rod part I (33) and a lower driving sleeve part I (32), the right driving guide rod (14) comprises an upper driving rod part II (35) and a lower telescopic sleeve part II (34), the lower telescopic sleeve part I (32) and the lower driving rod part (34), the front and rear telescopic sleeve part I (34) and the lower telescopic sleeve part (34) are both the hydraulic driving rod part (16), and the hydraulic driving cylinder (16) can generate an intermittent sliding speed difference between the front driving belt wheel structure, so that the lifting belt wheel structure and the lifting platform (15) can generate an intermittent sliding speed difference, the upper driving rod part II (35) can intermittently drive the rear driving belt wheel structure (17), a connecting line of central lines of the left driving guide rod (13) and the right driving guide rod (14) passes through the center of the lifting platform (15), an included angle between the central line and a transverse axis of the lifting platform (15) is beta, beta is an acute angle, when the upper driving rod part I (33) is meshed with the front driving belt wheel structure (16), a belt of the front driving belt wheel structure (16) moves a certain distance transversely relative to a belt of the rear driving belt wheel structure (17), slides inwards for a certain length longitudinally to drive the filter pressing plate (7) on the lifting platform (15) to incline for a certain angle delta, when the upper driving rod part II (35) is meshed with the front driving belt wheel structure (16), the belt of the front driving belt wheel structure (16) moves reversely relative to the belt of the rear driving belt wheel structure (17) for a certain distance transversely, slides outwards for the same length as the certain length longitudinally, the filter pressing plate (7) on the lifting platform (15) rotates reversely for a certain angle delta, and finally the filter pressing plate (7) returns normally.

2. A filter plate lifting device for a filter press according to claim 1, wherein: the front driving belt wheel structure (16) comprises a front driving wheel I (20), a rear driving wheel I (21), a front sleeve (24), a rear sleeve (25), a front driving wheel (30), a rear driving wheel (31) and a conveying belt (44), wherein the front driving wheel I (20) is fixedly arranged on the front sleeve (24), the front sleeve (24) is rotatably arranged in the lifting platform (15), the front sleeve (24) can slide along an axis, a threaded sleeve (29) is arranged in the end part of the front sleeve (24), the front driving wheel (30) is fixedly arranged on the front sleeve (24), the rear driving wheel I (21) is fixedly arranged on the rear sleeve (25), the rear sleeve is rotatably arranged in the lifting platform (15), the rear sleeve (25) can slide along the axis, a threaded sleeve (29) is arranged in the end part of the rear sleeve (25), the rear driving wheel (31) is fixedly arranged on the rear sleeve (25), the conveying belt (44) is arranged between the front driving wheel I (20) and the rear driving wheel I (21), a front pressing supporting block (18) is arranged on the conveying belt (44), the rear driving wheel structure (17) comprises a front driving wheel II (17), a rear driving wheel II (17) and a rear driving rod (26), and a front driving rod (26) and a rear driving rod (26), preceding pole (26) of stretching into is fixed to be set up in lift platform (15), and preceding pole (26) tip of stretching into is provided with screw thread portion (28) outward, and back drive wheel two (23) are fixed to be set up on pole (27) are stretched into to the back, and pole (27) are fixed to be set up in lift platform (15) are stretched into to the back, and the pole (27) tip of stretching into is provided with screw thread portion (28) outward after, conveyer belt (44) set up between front drive wheel two (22) and back drive wheel two (23), back pressure filter plate supporting block (19) set up on conveyer belt (44), screw thread portion (28) and thread bush (29) meshing.

3. A filter plate lifting device for a filter press according to claim 2, wherein: the upper driving rod part I (33) comprises a polished rod I (36) and a driving thread part I (37), the upper driving rod part II (35) comprises a polished rod II (38) and a driving thread part II (39), the driving thread part I (37) can be meshed with the front driving wheel (30), the driving thread part II (39) can be meshed with the rear driving wheel (31), and the height of the driving thread part I (37) is different from that of the driving thread part II (39).

4. A filter plate lifting device for a filter press according to claim 3, wherein: when the first driving screw thread part (37) is meshed with the front driving wheel (30), the front driving wheel (30) can rotate by a certain angle gamma, meanwhile, the front driving wheel (30) can drive the front sleeve (24) to rotate, so that the threaded sleeve (29) rotates relative to the threaded part (28), the first front driving wheel (20) is driven to slide inwards by a certain distance s, a certain angle delta of inclination of a filter pressing plate (7) is adapted, meanwhile, after the first driving wheel (20) slides by the distance s, the first driving screw thread part (37) is separated from meshing of the front driving wheel (30), meanwhile, the rear driving wheel (31) slides to a position where the second driving screw thread part (39) can be meshed, the lifting platform (15) continues to rise by a certain height, after lugs of the filter pressing plate (7) pass through a filter plate supporting beam (6), the second driving screw thread part (39) is meshed with the rear driving wheel (31), the rear driving wheel (31) to rotate by an angle gamma, meanwhile, the first rear driving wheel (21) to slide outwards by a distance s, the filter pressing plate (7) rotates by an angle delta, so that the filter pressing plate supporting beam (7) returns, and finally, the filter pressing plate (7) is driven to descend, and the filter pressing plate (6) is lifted and finally, and the filter pressing plate (7) is lifted and then lifted and lifted.

5. A filter press filter plate lifting apparatus according to claim 3, wherein: two driving thread parts I (37) on the upper driving rod part I (33) are arranged, and the thread directions are opposite; two driving thread parts II (39) on the upper driving rod part II (35) are provided, and the thread turning directions are opposite; the two first driving thread parts (37) are respectively positioned on the upper side and the lower side of the lifting platform (15), the two second driving thread parts (39) are respectively positioned on the upper side and the lower side of the lifting platform (15), and the heights of the first driving thread parts (37) and the second driving thread parts (39) are different.

6. A filter press filter plate lifting apparatus according to claim 2, wherein: support rollers are arranged between the conveyor belts (44) to enhance the support of the conveyor belts to the filter press plates so that deformation is not easily transmitted.

7. The device for lifting filter plates of a filter press according to claim 1, wherein: the hydraulic telescopic cylinder and the jacking driving device (12) are driven to lift by using a hydraulic source, and the lifting action of each hydraulic telescopic cylinder is completely independent.

8. A filter plate lifting device for a filter press according to claim 3, wherein: the front driving wheel (30) and the rear driving wheel (31) are worm wheels, and the first driving thread part (37) and the second driving thread part (39) are worms.

9. The device for lifting filter plates of a filter press according to claim 1, wherein: the front filter pressing plate supporting block (18) and the rear filter pressing plate supporting block (19) are arranged in a flush mode along the front-back direction of the lifting platform (15).

10. The device for lifting filter plates of a filter press according to claim 1, wherein: the left driving guide rod (13) and the right driving guide rod (14) are the same in height, and when the first lower telescopic sleeve part (32) and the second lower telescopic sleeve part (34) are contracted, the left driving guide rod (13) and the right driving guide rod (14) are both lower than a filter plate supporting beam (6) of the filter press.