Vertical filter press for preparing aluminum oxide and use method of vertical filter press

Abstract

The invention discloses a vertical filter press for preparing aluminum oxide and a use method of the vertical filter press, and belongs to the technical field of vertical filter presses. The filter press comprises a base, a mounting frame, a first hydraulic cylinder, a pressing plate, a machine base, a plurality of layers of upper clamping plates, a plurality of layers of lower clamping plates, filter cloth, a cleaning tank, a supporting mechanism and a driving mechanism, the supporting mechanism drives the movable frame and the cross rod to move through the motor, the upper clamping plate and the lower clamping plate can be temporarily supported, rapid opening and closing of the ends of the clamping plates are achieved through an inserting rod and connecting rod structure, and the filter cloth is convenient to replace. The driving mechanism drives the filter cloth to move through clamping of the upper pressing roller and the lower pressing roller, and is integrated with an adjustable and automatic locking tensioning roller mechanism, so that convenient adjustment of the tensioning degree of the filter cloth and stable operation are realized. The problems that filter cloth of a traditional vertical filter press is tedious to replace, tensioning adjustment is inconvenient, and cleaning is not thorough are solved, and the filter press has the advantages of being safe to operate, convenient and fast to maintain and high in filtering efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vertical filter press, and particularly relates to a vertical filter press for preparing alumina and a use method thereof. BACKGROUND

[0002] Alumina is an important industrial raw material, which is widely used in ceramics, refractory materials, catalysts, electronic materials and aluminum smelting. In the preparation process of alumina, filtration is a key solid-liquid separation step, especially for the preparation of high-purity alumina, efficient filtration and washing process directly affects the quality and production efficiency of the product. At present, the vertical filter press is often used in industrial production for material filtration and washing, which has the advantages of compact structure, small floor area and high filtration efficiency. However, the existing vertical filter press still has the following significant defects in actual use: 1. Difficulty in replacing filter cloth: The filter cloth of the traditional vertical filter press is usually embedded between multiple filter plates, and needs to be disassembled layer by layer when replacing, which is tedious, time-consuming and laborious, and seriously affects the continuous operation efficiency of the equipment. Especially in the preparation of alumina, which is prone to filter cloth blockage, wear or chemical corrosion, the filter cloth needs to be replaced frequently, and the existing structure is difficult to realize quick disassembly, which increases the maintenance cost and downtime.

[0003] 2. Difficulty in adjusting the tension of filter cloth: The filter cloth needs to be kept at an appropriate tension during operation to ensure the filtration effect and the smooth stripping of filter cake. The existing equipment usually uses manual or simple mechanical methods to adjust the tension, which is not only inconvenient to operate, but also difficult to keep the tension stable, which may cause the filter cloth to deviate, wrinkle or stretch too much, affecting the uniformity of filtration and the service life of the filter cloth.

[0004] 3. Incomplete cleaning of filter cloth: The alumina material is easy to accumulate on the surface of the filter cloth, and the cleaning device of the existing equipment is usually a fixed spraying structure, which has a limited cleaning range and is difficult to clean the filter cloth thoroughly. Long-term accumulation may affect the filtration flux and the quality of the filtrate.

[0005] 4. Complex structure of filter plate opening and closing: The compression and separation of multiple filter plates usually rely on the pushing of a central hydraulic cylinder, but when replacing the filter cloth or maintaining, there is no effective temporary support mechanism, and the filter plates are easy to be dislocated or overturned under their own weight, which poses a safety hazard and increases the operation difficulty.

[0006] Therefore, in view of the above problems, it is urgent to develop a vertical filter press with reasonable structure, convenient operation, and convenient filter cloth replacement and maintenance, to meet the needs of efficient, stable and easy-to-maintain filtration equipment in the preparation process of high-performance materials such as alumina. SUMMARY

[0007] The present application aims to provide a vertical filter press for preparing alumina and a use method thereof, to solve the problems of inconvenient filter cloth replacement and difficult tension adjustment.

[0008] In order to achieve the above object, the present application provides the following technical scheme: A vertical filter press for preparing aluminum oxide, comprising a base, a mounting frame fixedly connected to the top end of the base, a first hydraulic cylinder mounted at the top end of the mounting frame, a pressing plate connected to the output end of the first hydraulic cylinder, a machine base fixedly connected to the top end of the base below the pressing plate, a plurality of upper clamping plates and lower clamping plates arranged between the pressing plate and the machine base, the uppermost upper clamping plate being fixedly connected to the pressing plate, the lowermost lower clamping plate being fixedly connected to the machine base, guide rollers being alternately mounted on the side portions of adjacent lower clamping plates, guide rods being fixedly connected to the top end of the lower clamping plate away from the guide rollers, filter cloth being slidably connected to the outer walls of the guide rollers and the guide rods, the filter cloth being in contact with the top end of the lower clamping plate, a filter plate being mounted at the top end of the lower clamping plate, a liquid discharge pipe being arranged on the outer wall of the lower clamping plate at the bottom end of the filter plate, a feed pipe and a water inlet pipe being respectively connected to the two ends of the upper clamping plate, a filter cavity being formed in the bottom end of the upper clamping plate, a rubber diaphragm being fixedly connected to the inner wall top end of the filter cavity, a cleaning tank being fixedly connected to the top end of the base on one side of the machine base, a partition plate being fixedly connected to the top end of the cleaning tank, a spray head being mounted on the inner wall of the cleaning tank, the upper clamping plate and the lower clamping plate being temporarily supported by a supporting mechanism, and the filter cloth being driven to move by a driving mechanism.

[0009] As a further scheme of the present application: the supporting mechanism comprises a movable groove, the movable groove being formed in the top end of the base and located on one side of the machine base, a movable frame being slidably connected to the inner wall of the movable groove, a first motor being mounted at one end of the base, a threaded rod being connected to the output end of the first motor, the threaded rod penetrating the movable frame; the supporting mechanism further comprises a connecting frame, the connecting frame penetrating the machine base and the mounting frame, a horizontal rod being fixedly connected to the outer wall of the connecting frame, the horizontal rod penetrating the mounting frame, a vertical groove being formed in one end of the movable frame close to the machine base, circular holes being symmetrically formed in the two ends of the upper clamping plate and the lower clamping plate, fixed rods being fixedly connected to the outer walls of the upper clamping plate and the lower clamping plate on one side of the circular holes, plug rods being slidably connected to the inner walls of the circular holes, connecting rods being fixedly connected to the outer walls of the plug rods, sliding grooves being formed in the outer walls of the connecting rods, the fixed rods being slidably connected to the inner walls of the sliding grooves.

[0010] As a further further scheme of the present application: the driving mechanism comprises a second motor, the second motor is installed at the top end of the partition plate, the output end of the second motor is connected with a lower pressing roller, one end of the lower pressing roller is fixedly connected with a first straight gear, the top end of the partition plate is fixedly connected with a support frame, the top end of the support frame is installed with a second hydraulic cylinder, the output end of the second hydraulic cylinder is connected with a displacement seat, the inner wall of the displacement seat is rotatably connected with an upper pressing roller, one end of the upper pressing roller is fixedly connected with a second straight gear.

[0011] As a further further scheme of the present application: the driving mechanism further comprises a rotating rod, the rotating rod is symmetrically rotatably connected to both ends of the partition plate, one end of the rotating rod is rotatably connected with a tensioning roller, the outer wall of the rotating rod is fixedly connected with a toothed disc, one end of the partition plate is slidably connected with an L-shaped block above the toothed disc, one end of the partition plate is fixedly connected with a horizontal plate above the L-shaped block, a spring is connected between the L-shaped block and the horizontal plate, one end of the displacement seat is fixedly connected with a displacement frame, the outer wall of the displacement frame is fixedly connected with a first push plate and a second push plate, the first push plate is located above the second push plate, one end of the top of the L-shaped block is located between the first push plate and the second push plate.

[0012] As a further further scheme of the present application: the inner wall of the movable groove is fitted with the outer wall of the movable frame, the outer wall of the movable frame is provided with a threaded hole, and the threaded hole is matched with the threaded rod.

[0013] As a further further scheme of the present application: the number of upper clamping plates and lower clamping plates is equal to the number of upper cross bars of the connecting frame.

[0014] As a further further scheme of the present application: one end of the outer wall of the insertion rod is fitted with the inner wall of the circular hole, the other end of the outer wall of the insertion rod is fitted with the inner wall of the vertical groove, and the inner wall of the sliding groove is fitted with the outer wall of the fixed rod.

[0015] As a further further scheme of the present application: the second straight gear is engaged with the first straight gear.

[0016] As a further further scheme of the present application: the outer wall of the partition plate is fixedly connected with a limiting frame, the limiting frame is in the shape of a mouth, the inner wall of the limiting frame is fitted with the outer wall of the bottom of the L-shaped block, the outer wall of the toothed disc is provided with a clamping groove, and the bottom end of the L-shaped block is clamped with the clamping groove.

[0017] A using method of the vertical filter press for preparing alumina, the specific steps are as follows: Step one: the first hydraulic cylinder is operated to drive the compression plate to displace, the compression plate is displaced downward to compress the upper clamp plate and the lower clamp plate between the compression plate and the base, and the filter cloth is located between the upper clamp plate and the lower clamp plate; Step two: the material is injected into the filter cavity through the feeding pipe, the filter cloth and the filter plate filter the material, and the filtrate is discharged through the filter cloth and the filter plate through the liquid discharge pipe; Step three: the filtered material is located at the top end of the filter cloth, then water is injected above the rubber diaphragm through the water inlet pipe, so that the rubber diaphragm is pressed downward to further extrude the water in the filtered material, and then the injected water is discharged through the water inlet pipe; Step four: the first hydraulic cylinder is operated to drive the compression plate to displace upward, so that the upper clamp plate and the lower clamp plate are separated, and the filter cloth is displaced to discharge the filtered material from both sides of the lower clamp plate.

[0018] Compared with the prior art, the beneficial effects of the present application are: 1. The filter cloth is replaced quickly and safely: through the supporting mechanism, temporary stable support is provided when the compression plate group is separated, and the end of the clamp plate is quickly opened by simple push-turn operation to form a filter cloth replacement channel, solving the problems of traditional equipment disassembly complexity and safety hazards.

[0019] 2. The filter cloth is automatically controllable in tension: the driving mechanism integrates tensioning, locking and driving. After adjusting the tensioning roller, the compression rollers are closed to automatically lock the tensioning state; the compression rollers are separated to automatically release the locking and relax the filter cloth, realizing one-key stable adjustment of the tensioning force and simple and reliable operation.

[0020] 3. Good cleaning effect and convenient maintenance: the filter cloth can continuously pass through the cleaning tank to receive comprehensive spraying under the driving, and the cleaning efficiency is improved by the inclination angle formed by the tensioning roller, which is beneficial to maintaining the performance of the filter cloth and prolonging the service life.

[0021] 4. High overall operation efficiency: the above improvements greatly shorten the key operation time of filter cloth replacement, tensioning adjustment and cleaning and maintenance, improve the automation degree, and are especially suitable for filtering scenes such as alumina which need frequent maintenance, thereby improving the comprehensive operation efficiency of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic diagram of the present application; Figure 2 is an installation schematic diagram of the upper clamp plate and the lower clamp plate of the present application; Figure 3 is a structural schematic diagram of the upper clamp plate and the lower clamp plate of the present application; Figure 4 is a sectional view of the upper clamp plate and the lower clamp plate of the present application; Figure 5 is an installation schematic diagram of the movable frame of the present application; Figure 6 Structure diagram of the movable frame of the application; Figure 7 Installation diagram of the insertion rod of the application; Figure 8 Installation diagram of the spray head of the application; Figure 9 Installation diagram of the tension roller of the application.

[0023] In the figure: 1, base; 2, mounting frame; 3, first hydraulic cylinder; 4, pressing plate; 5, machine base; 6, upper clamping plate; 7, lower clamping plate; 8, supporting mechanism; 801, movable slot; 802, movable frame; 803, first motor; 804, threaded rod; 805, connecting frame; 806, crossbar; 807, vertical slot; 808, round hole; 809, fixed rod; 810, insertion rod; 811, connecting rod; 812, sliding slot; 9, driving mechanism; 901, second motor; 902, lower pressing roller; 903, first spur gear; 904, supporting frame; 905, second hydraulic cylinder; 906, displacement seat; 907, upper pressing roller; 908, second spur gear; 909, rotating rod; 910, tension roller; 911, toothed disc; 912, L-shaped block; 913, spring; 914, cross plate; 915, displacement frame; 916, first push plate; 917, second push plate; 10, guide roller; 11, guide rod; 12, filter cloth; 13, filter plate; 14, liquid discharge pipe; 15, filter cavity; 16, feed pipe; 17, rubber diaphragm; 18, water inlet pipe; 19, cleaning tank; 20, partition plate; 21, spray head. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the application will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the application.

[0025] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "providing" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. The embodiments of the present application will be described below according to the overall structure of the present application.

[0026] Please refer to Figures 1 to 9 In the embodiment of the present application, a vertical filter press for preparing aluminum oxide comprises a base 1, a mounting frame 2 fixedly connected to the top end of the base 1, a first hydraulic cylinder 3 mounted at the top end of the mounting frame 2, a pressing plate 4 connected to the output end of the first hydraulic cylinder 3, a machine base 5 fixedly connected to the top end of the base 1 below the pressing plate 4, a plurality of upper clamping plates 6 and lower clamping plates 7 arranged between the pressing plate 4 and the machine base 5, the uppermost upper clamping plate 6 being fixedly connected to the pressing plate 4, the lowermost lower clamping plate 7 being fixedly connected to the machine base 5, guide rollers 10 being alternately mounted on the side portions of adjacent lower clamping plates 7, guide rods 11 being fixedly connected to the top end of the lower clamping plate 7 away from the guide rollers 10, filter cloths 12 being slidably connected to the outer walls of the guide rollers 10 and the guide rods 11, the filter cloths 12 being in contact with the top end of the lower clamping plate 7, filter plates 13 being mounted at the top end of the lower clamping plate 7, liquid discharge pipes 14 being arranged on the outer wall of the lower clamping plate 7 at the bottom end of the filter plates 13, a feed pipe 16 and a water inlet pipe 18 being respectively connected to the two ends of the upper clamping plate 6, a filter cavity 15 being formed at the bottom end of the upper clamping plate 6, a rubber diaphragm 17 being fixedly connected to the inner wall top end of the filter cavity 15, a cleaning tank 19 being fixedly connected to the top end of the base 1 on one side of the machine base 5, a partition plate 20 being fixedly connected to the top end of the cleaning tank 19, a spray head 21 being mounted on the inner wall of the cleaning tank 19, the upper clamping plate 6 and the lower clamping plate 7 being temporarily supported by a supporting mechanism 8, the filter cloths 12 being driven to move by a driving mechanism 9.

[0027] In the embodiment, the first hydraulic cylinder 3 drives the pressing plate 4 to move downward, the pressing plate 4 moves downward to press the upper clamping plate 6 and the lower clamping plate 7 between the pressing plate 4 and the base 5, and the filter cloth 12 is located between the upper clamping plate 6 and the lower clamping plate 7; the material is injected into the filter cavity 15 through the feeding pipe 16, the filter cloth 12 and the filter plate 13 filter the material, and the filtrate is discharged through the discharge pipe 14; the filtered material is located at the top end of the filter cloth 12, then water is injected above the rubber diaphragm 17 through the water inlet pipe 18, the rubber diaphragm 17 is pressed downward, the water in the filtered material is further squeezed out, then the injected water is discharged through the water inlet pipe 18; the first hydraulic cylinder 3 drives the pressing plate 4 to move upward, the upper clamping plate 6 and the lower clamping plate 7 are separated, the filter cloth 12 moves to discharge the filtered material from both sides of the lower clamping plate 7, and the nozzle 21 washes the filter cloth 12 passing through the cleaning tank 19.

[0028] Please refer to Figures 5 to 7 , the supporting mechanism 8 comprises a movable groove 801, the movable groove 801 is arranged at the top end of the base 1 and located at one side of the base 5, the inner wall of the movable groove 801 is slidably connected with a movable frame 802, one end of the base 1 is provided with a first motor 803, the output end of the first motor 803 is connected with a threaded rod 804, the threaded rod 804 penetrates through the movable frame 802, the supporting mechanism 8 further comprises a connecting frame 805, the connecting frame 805 penetrates through the base 5 and the mounting frame 2, the outer wall of the connecting frame 805 is fixedly connected with a cross rod 806, the cross rod 806 penetrates through the mounting frame 2, one end of the movable frame 802 close to the base 5 is provided with a vertical groove 807, both ends of the upper clamping plate 6 and the lower clamping plate 7 are symmetrically provided with a circular hole 808, the outer wall of the upper clamping plate 6 and the lower clamping plate 7 located at one side of the circular hole 808 is fixedly connected with a fixed rod 809, the inner wall of the circular hole 808 is slidably connected with a plug rod 810, the outer wall of the plug rod 810 is fixedly connected with a connecting rod 811, the outer wall of the connecting rod 811 is provided with a sliding groove 812, and the fixed rod 809 is slidably connected with the inner wall of the sliding groove 812.

[0029] In the embodiment, the first hydraulic cylinder 3 drives the pressing plate 4 to move upward, the pressing plate 4 moves to drive the uppermost upper clamping plate 6 to move, when the upper clamping plate 6 moves, the fixed rod 809 slides in the sliding groove 812 to drive the connecting rod 811 to rotate, the connecting rod 811 rotates to drive the plug rod 810 to rotate, the plug rod 810 rotates in the circular hole 808 until the fixed rod 809 slides to the bottom end of the sliding groove 812, then drives the lower clamping plate 7 to move upward, and the remaining upper clamping plates 6 and lower clamping plates 7 are sequentially driven to move upward, so that the upper clamping plates 6 and the lower clamping plates 7 are separated, and in the process, the plug rod 810 slides along the inner wall of the vertical groove 807 to limit the moving direction of the upper clamping plate 6 and the lower clamping plate 7.

[0030] When the filter cloth 12 is replaced, the first motor 803 is started, the first motor 803 is rotated to drive the threaded rod 804 to rotate, the threaded rod 804 is rotated to drive the movable frame 802 to slide in the movable groove 801, the movable frame 802 is displaced away from the base 5, and the movable frame 802 is displaced to drive the connecting frame 805 to displace, the connecting frame 805 is displaced to drive the cross rod 806 to displace, the cross rod 806 is in contact with the two sides of the bottom end of each upper clamping plate 6 and lower clamping plate 7, thereby assisting in supporting the upper clamping plate 6 and lower clamping plate 7, then the insertion rod 810 on the upper clamping plate 6 and lower clamping plate 7 is pushed to displace outwardly from the circular hole 808 until the fixed rod 809 is displaced out of the sliding groove 812, then the connecting rod 811 is rotated, thereby opening one end of the upper clamping plate 6 and lower clamping plate 7, thereby facilitating the taking down and replacing the filter cloth 12 through the opening of one end of the upper clamping plate 6 and lower clamping plate 7.

[0031] After the filter cloth 12 is replaced, the connecting rod 811 is rotated, then the insertion rod 810 is inserted into the circular hole 808, so that the fixed rod 809 is inserted into the sliding groove 812, then the first motor 803 is operated to drive the movable frame 802 to move to reset, thereby supporting one end of the mounting frame 2, and the insertion rod 810 is inserted into the vertical slot 807, and the insertion rod 810 is pressed into the circular hole 808.

[0032] Please refer to Figures 8 to 9 , the driving mechanism 9 comprises a second motor 901, the second motor 901 is installed at the top end of the partition plate 20, the output end of the second motor 901 is connected with a lower pressing roller 902, one end of the lower pressing roller 902 is fixedly connected with a first straight gear 903, the top end of the partition plate 20 is fixedly connected with a support frame 904, the top end of the support frame 904 is installed with a second hydraulic cylinder 905, the output end of the second hydraulic cylinder 905 is connected with a displacement seat 906, the inner wall of the displacement seat 906 is rotatably connected with an upper pressing roller 907, one end of the upper pressing roller 907 is fixedly connected with a second straight gear 908; the driving mechanism 9 further comprises a rotating rod 909, the rotating rod 909 is symmetrically rotatably connected at both ends of the partition plate 20, one end of the rotating rod 909 is rotatably connected with a tensioning roller 910, the outer wall of the rotating rod 909 is fixedly connected with a toothed disc 911, one end of the partition plate 20 is slidably connected with an L-shaped block 912 above the toothed disc 911, one end of the partition plate 20 is fixedly connected with a horizontal plate 914 above the L-shaped block 912, the L-shaped block 912 and the horizontal plate 914 are connected with a spring 913, one end of the displacement seat 906 is fixedly connected with a displacement frame 915, the outer wall of the displacement frame 915 is fixedly connected with a first pushing plate 916 and a second pushing plate 917, the first pushing plate 916 is located above the second pushing plate 917, and one end of the top of the L-shaped block 912 is located between the first pushing plate 916 and the second pushing plate 917.

[0033] In the embodiment, the filter cloth 12 is threaded out from the lowermost set of upper and lower clamping plates 6 and 7, enters the cleaning tank 19, and is threaded under the partition 20, is lifted by the tensioning roller 910, and is then threaded upward between the upper and lower compression rollers 907 and 902, and finally enters the uppermost set of upper and lower clamping plates 6 and 7. The tensioning roller 910 can tension the filter cloth 12 and form an angle gap between the filter cloth 12 and the partition 20, and the spray head 21 can perform the flushing operation on the residual material of the portion of the filter cloth 12 that has just passed through the cleaning tank 19.

[0034] When the filter cloth 12 needs to be driven to move, the second hydraulic cylinder 905 is started, the second hydraulic cylinder 905 is operated to drive the displacement seat 906 and the upper compression roller 907 to move downward, the upper and lower compression rollers 907 and 902 clamp the filter cloth 12 together, the second spur gear 908 is in contact with the first spur gear 903, the second motor 901 is started to drive the lower compression roller 902 to rotate, the lower compression roller 902 drives the first spur gear 903 to rotate, the first spur gear 903 drives the second spur gear 908 to rotate in the opposite direction, the second spur gear 908 drives the upper compression roller 907 to rotate, and the lower and upper compression rollers 902 and 907 rotate in opposite directions to drive the filter cloth 12 to move.

[0035] When the filter cloth 12 is tensioned, the rotating rod 909 is rotated, the rotating rod 909 drives the gear disc 911 to rotate synchronously, the L-shaped block 912 is in contact with the gear disc 911 under the action of the spring 913, the rotating rod 909 drives the tensioning roller 910 to move, and the tensioning roller 910 is tensioned to the filter cloth 12. After the upper and lower compression rollers 907 and 902 clamp the filter cloth 12, the displacement seat 906 moves downward, the displacement seat 906 drives the displacement frame 915 to move, the displacement frame 915 drives the first push plate 916 to move downward, the first push plate 916 is in contact with the L-shaped block 912, the L-shaped block 912 is pressed between the first push plate 916 and the gear disc 911, the gear disc 911 and the rotating rod 909 are fixed, the position of the tensioning roller 910 is positioned, and the filter cloth 12 is fixed after the tension is adjusted.

[0036] When the filter cloth 12 is replaced, the displacement seat 906 drives the upper pressing roller 907 away from the lower pressing roller 902 to loosen the filter cloth 12, the displacement of the displacement seat 906 drives the displacement frame 915 to displace, the displacement of the displacement frame 915 drives the second push plate 917 to displace upward, the second push plate 917 is in contact with the L-shaped block 912 to drive the L-shaped block 912 to separate from the toothed disc 911, and the fixation of the toothed disc 911 is cancelled. At this time, the rotating rod 909 is driven downward by the gravity of the tensioning roller 910 to automatically loosen the filter cloth 12, so that the filter cloth 12 is automatically tensioned when the upper pressing roller 907 and the lower pressing roller 902 loosen the clamping of the filter cloth 12, and then the subsequent replacement operation of the filter cloth 12 is facilitated.

[0037] It is worth noting that the cleaning tank 19 and one end of the partition plate 20 have an opening, so that the filter cloth 12 can be moved out of the opening. The support frame 904 is in an inverted L shape, that is, an opening part for taking out the filter cloth 12 is also reserved. In addition, the rotating rod 909 on the side where the toothed disc 911 is not installed is detachably installed between the partition plate 20 and the tensioning roller 910. During the subsequent replacement of the filter cloth 12, the rotating rod 909 on this side can be detached to facilitate the taking out and installation of the filter cloth 12.

[0038] Please refer to Figures 5 to 7 , the inner wall of the movable groove 801 is in close contact with the outer wall of the movable frame 802, and the outer wall of the movable frame 802 is provided with a threaded hole matched with the threaded rod 804.

[0039] In this embodiment: the first motor 803 drives the threaded rod 804 to rotate, and the threaded rod 804 drives the movable frame 802 to slide in the movable groove 801.

[0040] Please refer to Figures 5 to 7 , the number of the connecting frame 805 and the upper clamping plate 6 and the lower clamping plate 7 is the same and one-to-one correspondence.

[0041] In this embodiment: the movable frame 802 is displaced away from the machine base 5, and the displacement of the movable frame 802 drives the displacement of the connecting frame 805, and the displacement of the connecting frame 805 drives the displacement of the cross rod 806. The cross rod 806 is in contact with the bottom of each upper clamping plate 6 and lower clamping plate 7 on both sides, thereby assisting the support operation of the upper clamping plate 6 and the lower clamping plate 7.

[0042] Please refer to Figures 5 to 7 , one end of the outer wall of the plug rod 810 is in close contact with the inner wall of the circular hole 808, and the other end of the outer wall of the plug rod 810 is in close contact with the inner wall of the vertical groove 807. The inner wall of the sliding groove 812 is in close contact with the outer wall of the fixed rod 809.

[0043] In the embodiment, the first hydraulic cylinder 3 drives the pressing plate 4 to move upward, the pressing plate 4 drives the upper clamping plate 6 at the top to move, when the upper clamping plate 6 moves, the fixed rod 809 slides in the sliding groove 812, drives the connecting rod 811 to rotate, the connecting rod 811 drives the plug rod 810 to rotate, so that the plug rod 810 rotates in the circular hole 808, until the fixed rod 809 slides to the bottom end of the sliding groove 812, then drives the lower clamping plate 7 to move upward, and the rest of the upper clamping plate 6 and the lower clamping plate 7 are gradually driven to move upward, so that the upper clamping plate 6 and the lower clamping plate 7 are separated, in the process, the plug rod 810 slides along the inner wall of the vertical slot 807 to limit the movement direction of the upper clamping plate 6 and the lower clamping plate 7; at the same time, the plug rod 810 moves and inserts into the vertical slot 807, and the plug rod 810 is pressed in the circular hole 808 to prevent the plug rod 810 from loosening.

[0044] Please refer to Figures 8 to 9 , the second spur gear 908 is engaged with the first spur gear 903.

[0045] In the embodiment, the second hydraulic cylinder 905 drives the displacement seat 906 and the upper compression roller 907 to move downward, the upper compression roller 907 and the lower compression roller 902 clamp the filter cloth 12 together, the second spur gear 908 is in contact with the first spur gear 903, the second motor 901 is started to drive the lower compression roller 902 to rotate, the lower compression roller 902 drives the first spur gear 903 to rotate, the first spur gear 903 drives the second spur gear 908 to rotate in the opposite direction, the second spur gear 908 drives the upper compression roller 907 to rotate, and the lower compression roller 902 and the upper compression roller 907 rotate in opposite directions to drive the filter cloth 12 to move.

[0046] Please refer to Figures 8 to 9 , the outer wall of the partition plate 20 is fixedly connected with a limiting frame, the limiting frame is in the shape of a mouth, the inner wall of the limiting frame is in close contact with the bottom outer wall of the L-shaped block 912, the outer wall of the toothed disc 911 is provided with a clamping groove, and the bottom end of the L-shaped block 912 is clamped in the clamping groove.

[0047] In the embodiment, the bottom end of the L-shaped block 912 is clamped with the toothed disc 911, and the first push plate 916 is pressed on the L-shaped block 912, so as to fix the toothed disc 911; when the second push plate 917 moves upward, the second push plate 917 drives the L-shaped block 912 to separate from the toothed disc 911, so as to release the fixing operation on the toothed disc 911.

[0048] The use method of the vertical filter press for preparing aluminum oxide is as follows: Step one: the first hydraulic cylinder 3 drives the displacement of the compression plate 4, the compression plate 4 is displaced downward, the upper clamp plate 6 and the lower clamp plate 7 between the compression plate 4 and the base 5 are compressed, and the filter cloth 12 is located between the upper clamp plate 6 and the lower clamp plate 7; Step two: the material is injected into the filter cavity 15 through the feeding pipe 16, the filter cloth 12 and the filter plate 13 filter the material, and the filtrate is discharged through the discharge pipe 14; Step three: the filtered material is located at the top end of the filter cloth 12, then water is injected above the rubber diaphragm 17 through the water inlet pipe 18, so that the rubber diaphragm 17 is pressed downward, and the moisture in the filtered material is further squeezed out, then the injected water is discharged through the water inlet pipe 18; Step four: the first hydraulic cylinder 3 drives the displacement of the compression plate 4 upward, so that the upper clamp plate 6 and the lower clamp plate 7 are separated, and the filter cloth 12 is displaced to discharge the filtered material from both sides of the lower clamp plate 7.

[0049] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A vertical filter press for alumina preparation, comprising a base (1), characterized in that, A mounting bracket (2) is fixedly connected to the top of the base (1). A first hydraulic cylinder (3) is mounted on the top of the mounting bracket (2). A pressure plate (4) is connected to the output end of the first hydraulic cylinder (3). A machine base (5) is fixedly connected to the top of the base (1) below the pressure plate (4). Multiple sets of upper clamping plates (6) and lower clamping plates (7) are arranged between the pressure plate (4) and the machine base (5). The uppermost upper clamping plate (6) is fixedly connected to the pressure plate (4), and the lowermost lower clamping plate (7) is fixedly connected to the machine base (5). Guide rollers (10) are alternately installed on the sides of adjacent lower clamping plates (7). A guide rod (11) is fixedly connected to the side of the top of the lower clamping plate (7) away from the guide roller (10). A filter cloth (12) is slidably connected to the outer wall of the guide roller (10) and the guide rod (11). The filter cloth (12) is connected to the... The top ends of the lower clamping plates (7) are in contact with each other. A filter plate (13) is installed on the top end of the lower clamping plate (7). A drain pipe (14) is provided on the outer wall of the lower clamping plate (7) at the bottom end of the filter plate (13). The two ends of the upper clamping plate (6) are respectively connected to the feed pipe (16) and the water inlet pipe (18). A filter cavity (15) is opened at the bottom end of the upper clamping plate (6). A rubber diaphragm (17) is fixedly connected to the top end of the inner wall of the filter cavity (15). A cleaning tank (19) is fixedly connected to the top end of the base (1) on one side of the machine base (5). A partition plate (20) is fixedly connected to the top end of the cleaning tank (19). A nozzle (21) is installed on the inner wall of the cleaning tank (19). The upper clamping plate (6) and the lower clamping plate (7) are temporarily supported by a support mechanism (8). The filter cloth (12) is driven to move by a drive mechanism (9).

2. The vertical filter press for alumina preparation according to claim 1, characterized in that, The support mechanism (8) includes a movable groove (801), which is located at the top of the base (1) and on one side of the base (5). A movable frame (802) is slidably connected to the inner wall of the movable groove (801). A first motor (803) is installed at one end of the base (1). A threaded rod (804) is connected to the output end of the first motor (803). The threaded rod (804) passes through the movable frame (802). The support mechanism (8) also includes a connecting frame (805), which passes through the base (5) and the mounting frame (2). A crossbar (806) is fixedly connected to the outer wall of the connecting frame (805), and the crossbar (806) passes through the mounting frame (2). A vertical groove (807) is provided at one end of the movable frame (802) near the base (5). Symmetrical openings are provided at both ends of the upper clamping plate (6) and the lower clamping plate (7). A fixed rod (809) is fixedly connected to the outer wall of the upper clamping plate (6) and the lower clamping plate (7) on one side of the circular hole (808). An insert rod (810) is slidably connected to the inner wall of the circular hole (808). A connecting rod (811) is fixedly connected to the outer wall of the insert rod (810). A sliding groove (812) is opened on the outer wall of the connecting rod (811). The fixed rod (809) is slidably connected to the inner wall of the sliding groove (812).

3. The vertical filter press for alumina preparation according to claim 2, characterized in that, The drive mechanism (9) includes a second motor (901), which is mounted on the top of the partition (20). The output end of the second motor (901) is connected to a lower pressure roller (902). One end of the lower pressure roller (902) is fixedly connected to a first spur gear (903). The top of the partition (20) is fixedly connected to a support frame (904). The top of the support frame (904) is equipped with a second hydraulic cylinder (905). The output end of the second hydraulic cylinder (905) is connected to a displacement seat (906). The inner wall of the displacement seat (906) is rotatably connected to an upper pressure roller (907). One end of the upper pressure roller (907) is fixedly connected to a second spur gear (908).

4. A vertical filter press for alumina preparation according to claim 3, characterized in that, The driving mechanism (9) further includes a rotating rod (909), which is symmetrically rotatably connected to both ends of the partition (20). One end of the rotating rod (909) is rotatably connected to a tension roller (910). A gear disc (911) is fixedly connected to the outer wall of the rotating rod (909). An L-shaped block (912) is slidably connected above the gear disc (911) at one end of the partition (20). A horizontal plate is fixedly connected above the L-shaped block (912) at one end of the partition (20). 914), a spring (913) is connected between the L-shaped block (912) and the horizontal plate (914), a displacement frame (915) is fixedly connected to one end of the displacement seat (906), a first push plate (916) and a second push plate (917) are fixedly connected to the outer wall of the displacement frame (915), the first push plate (916) is located above the second push plate (917), and the top end of the L-shaped block (912) is located between the first push plate (916) and the second push plate (917).

5. A vertical filter press for alumina preparation according to claim 2, characterized in that, The inner wall of the movable groove (801) fits against the outer wall of the movable frame (802), and the outer wall of the movable frame (802) is provided with a threaded hole, which matches the threaded rod (804).

6. A vertical filter press for alumina preparation according to claim 2, characterized in that, The number of crossbars (806) on one of the connecting frames (805) is the same as the sum of the number of the upper clamping plate (6) and the lower clamping plate (7), and they are set in a one-to-one correspondence.

7. A vertical filter press for alumina preparation according to claim 2, characterized in that, One end of the insert rod (810) is attached to the inner wall of the circular hole (808), the other end of the insert rod (810) is attached to the inner wall of the vertical groove (807), and the inner wall of the sliding groove (812) is attached to the outer wall of the fixing rod (809).

8. A vertical filter press for alumina preparation according to claim 4, characterized in that, The second spur gear (908) meshes with the first spur gear (903).

9. A vertical filter press for alumina preparation according to claim 4, characterized in that, The outer wall of the partition (20) is fixedly connected to a limiting frame. The limiting frame is shaped like a square. The inner wall of the limiting frame is in contact with the bottom outer wall of the L-shaped block (912). The outer wall of the toothed disc (911) is provided with a slot. The bottom end of the L-shaped block (912) is engaged with the slot.

10. A method of using a vertical filter press for alumina preparation, characterized in that, The specific steps are as follows: Step 1: The first hydraulic cylinder (3) operates and drives the pressing plate (4) to move. The pressing plate (4) moves downward and presses the upper clamping plate (6) and the lower clamping plate (7) between the pressing plate (4) and the machine base (5). The filter cloth (12) is located between the upper clamping plate (6) and the lower clamping plate (7). Step 2: The material is injected into the filter chamber (15) through the feed pipe (16). The filter cloth (12) and filter plate (13) filter the material. The filtrate passes through the filter cloth (12) and filter plate (13) and is discharged through the drain pipe (14). Step 3: The filtered material is located at the top of the filter cloth (12). Then, water is injected into the rubber diaphragm (17) through the water inlet pipe (18), causing the rubber diaphragm (17) to press down and further squeeze out the water in the filtered material. Then, the injected water is discharged through the water inlet pipe (18). Step 4: The first hydraulic cylinder (3) operates and drives the pressing plate (4) to move upward, so that the upper clamping plate (6) and the lower clamping plate (7) are separated, and the filter cloth (12) moves and drives the filtered material to be discharged from both sides of the lower clamping plate (7).

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