Rare earth polishing powder dehydration filter pressing device

Abstract

The rare earth polishing powder dewatering and filter pressing device comprises a dewatering tank, an extrusion mechanism and a conveying assembly, a water outlet is formed in the lower side of the dewatering tank, and a filter pressing cylinder is erected in the dewatering tank; the extrusion mechanism comprises a driving part, a fixed shaft and a plurality of extrusion rollers; the conveying assembly comprises a first extrusion belt and a second extrusion belt. Therefore, through the synergistic effect of the first extrusion belt and the second extrusion belt, the mixed liquid between the first extrusion belt and the second extrusion belt is subjected to efficient extrusion treatment. In the process, water generated by extrusion is guided to the second extrusion belt below and is smoothly discharged into the dewatering tank. The design of single-side drainage not only optimizes the dewatering and filter pressing effect and effectively improves the dewatering quality, but also avoids the pressure increase possibly caused by water accumulation, and ensures the stability and smoothness of the whole filter pressing process.

Description

Technical Field

[0001] The present application relates to the technical field of rare earth polishing powder dehydration, and in particular to a rare earth polishing powder dehydration filter press device. Background Art

[0002] Rare earth polishing powder refers to a powder with cerium oxide as the main component. Rare earth polishing powder is widely used in the fine grinding of display screens, optical and photoelectric glass, accessories, building materials, molds and precision instruments due to its unique physical and chemical properties. In the production process of rare earth polishing powder, the mixed liquid containing rare earth polishing powder needs to undergo dehydration and filter pressing. The main function of this link is to separate the water and solid particles in the mixed liquid to obtain relatively pure rare earth polishing powder. Dehydration and filter pressing technology can not only improve the purity of rare earth polishing powder, but also reduce subsequent processing steps and costs.

[0003] At present, the common method for dehydrating and filtering mixed liquids containing rare earth polishing powder is to use a filter press device. The filter press applies a specific pressure to effectively discharge the water in the mixed liquid through the filter cloth, while the solid particles are intercepted by the filter cloth and gradually accumulate to form a filter cake. Subsequently, the filter cake will undergo further drying and processing, and finally be converted into the required rare earth polishing powder.

[0004] In this process, two filter press belts work together to squeeze the rare earth polishing powder in the middle. During this process, water seeps out from the two filter press belts, and the water discharged from the upper filter press belt tends to flow naturally to the subsequent filter press link. If it is not drained in time, it will directly increase the pressure burden of the subsequent filter press operation. Summary of the invention

[0005] The present application aims to solve one of the technical problems in the related art at least to some extent.

[0006] To this end, one purpose of the present application is to propose a rare earth polishing powder dehydration filter press device, which efficiently extrudes the mixed liquid placed between the first extrusion belt and the second extrusion belt through the synergistic effect of the first extrusion belt and the second extrusion belt. In this process, the water produced by the extrusion will be guided to the second extrusion belt below and smoothly discharged into the dehydration tank. This single-sided drainage design not only optimizes the effect of dehydration filter press, effectively improves the dehydration quality, but also avoids the pressure increase that may be caused by water accumulation, ensuring the stability and smoothness of the entire filter press process.

[0007] To achieve the above-mentioned purpose, the first embodiment of the present application proposes a rare earth polishing powder dehydration and filter pressing device, comprising a dehydration trough, an extrusion mechanism and a conveying assembly, wherein a water outlet is provided on the lower side of the dehydration trough, a filter press is arranged in the dehydration trough, and the filter press comprises two side plates and a top plate and a bottom plate arranged between the two side plates, wherein an inlet and an outlet are formed between the top plate and the bottom plate, and a plurality of filter holes are evenly distributed on the bottom plate; the extrusion mechanism comprises a driving member, a fixed shaft, and a plurality of extrusion rollers, wherein the fixed shaft is coaxially arranged inside the filter press; the plurality of extrusion rollers are circumferentially distributed on the outside of the fixed shaft; the driving member and the plurality of The extrusion rollers are connected; the conveying assembly includes a first extrusion belt and a second extrusion belt, wherein the first extrusion belt is sleeved on the outside of the plurality of extrusion rollers, the first extrusion belt is detachable and has mounting rings at both ends, the mounting rings are movably arranged on the corresponding side plates, an upper scraper is arranged between the two side plates, and the end of the upper scraper is in sliding contact with the first extrusion belt; the second extrusion belt is arranged in the dewatering trough through a rotating part, a plurality of second filter holes are evenly distributed on the second extrusion belt, the bottom plate is arranged on the inner side of the second extrusion belt, a lower scraper is arranged on the dewatering trough, and the end of the lower scraper is in sliding contact with the second extrusion belt.

[0008] In addition, the rare earth polishing powder dehydration filter press device proposed in the present application may also have the following additional technical features:

[0009] In one embodiment of the present application, the driving member includes a first motor, two turntables, a first gear and a plurality of second gears, wherein the two turntables are movably arranged on the corresponding side plates, one of the turntables is movably arranged to pass through the corresponding side plate and the dewatering tank in turn and is sleeved with a rotating ring, and the extrusion roller passes through the corresponding turntable and is provided with a rotating shaft; one end of the fixed shaft passes through the corresponding turntable and is connected to the side plate, and the other end of the fixed shaft passes through the other turntable and is connected to the first gear; a plurality of second gears are respectively sleeved on the outside of the corresponding rotating shaft, and the second gears are meshed with the first gears, and the rotating ring is arranged on the outside of the second gears; the first motor is arranged on the first seat body outside the dewatering tank, the output end of the first motor is connected to the driving shaft, and the driving shaft and the outside of the rotating ring are sleeved with a first synchronous belt.

[0010] In one embodiment of the present application, the mounting ring is connected to the corresponding turntable.

[0011] In one embodiment of the present application, a baffle is extended upward at one end of the base plate, the second extrusion belt is sleeved on the outside of the baffle, and a limiting sleeve is sleeved on the outside of the baffle, and the second extrusion belt is located between the baffle and the limiting sleeve.

[0012] In one embodiment of the present application, the rotating member includes a second motor and four conveying rollers, wherein the four conveying rollers are all arranged on the inner side of the second extrusion belt, and the four conveying rollers are respectively arranged on the top of the baffle, the end of the bottom plate and the two sides of the dewatering trough, one end of each of the conveying rollers passes through the dewatering trough and is provided with a rotating wheel, and the four rotating wheels are synchronously connected through a transmission assembly; the second motor is arranged on the second seat body outside the dewatering trough, and the output end of the second motor is connected to one of the rotating wheels.

[0013] In one embodiment of the present application, one side of the dewatering trough is arranged in a slope shape matching with the lower scraper.

[0014] Compared with the prior art, the beneficial effects of this application are:

[0015] 1. Through the synergistic effect of the first extrusion belt and the second extrusion belt, the mixed liquid placed between the two is efficiently extruded. In this process, the water generated by the extrusion will be guided to the second extrusion belt below and smoothly discharged into the dewatering tank. This single-side drainage design not only optimizes the effect of dehydration and filtration, effectively improves the dehydration quality, but also avoids the increase in pressure caused by water accumulation, ensuring the stability and smoothness of the entire filtration process;

[0016] 2. During the coordinated operation of the first extrusion belt and the second extrusion belt, the water generated by the extrusion can smoothly pass through the second extrusion belt and the filter holes in sequence, and finally be discharged into the dewatering tank. This process not only ensures the effective discharge of water, but also the water can naturally flush the second extrusion belt after passing through the second filter holes;

[0017] 3. The setting limit sleeve can not only stabilize the position of the second extrusion belt, but also efficiently wipe away the residual moisture on its surface, thereby greatly promoting the smooth operation of the second extrusion belt.

[0018] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and easily understood from the following description of the embodiments in conjunction with the accompanying drawings, in which:

[0020] Figure 1 The structure of the rare earth polishing powder dehydration filter press device according to one embodiment of the present application is shown in FIG. Figure 1 ;

[0021] Figure 2This is a schematic cross-sectional structure diagram of a rare earth polishing powder dehydration filter press device according to an embodiment of the present application;

[0022] Figure 3 The structure of the rare earth polishing powder dehydration filter press device according to one embodiment of the present application is shown in FIG. Figure 2 ;

[0023] Figure 4 This is a schematic diagram of the structure of a filter cartridge of a rare earth polishing powder dehydration filter press device according to an embodiment of the present application;

[0024] Figure 5 This is a schematic diagram of a top-view cross-sectional structure of an extrusion mechanism connected to a dehydration tank of a rare earth polishing powder dehydration filter press according to an embodiment of the present application.

[0025] As shown in the figure: 10, dewatering tank; 101, water outlet; 102, first seat body; 103, second seat body; 12, filter cartridge; 121, side plate; 122, top plate; 123, bottom plate; 1231, filter hole; 124, baffle; 13, inlet; 14, outlet; 20, extrusion mechanism; 21, driving member; 211, first motor; 2111, driving shaft; 212, turntable; 2121, rotating ring; 213, first gear; 214, second gear; 22, fixed shaft; 23, extrusion roller; 231, rotating shaft; 30, transmission assembly; 31, first extrusion belt; 311, mounting ring; 32, second extrusion belt; 40, rotating member; 41, second motor; 42, transmission roller; 421, rotating wheel; 50, first synchronous belt; 60, second synchronous belt; 70, limiting sleeve; 80, upper scraper; 90, lower scraper. DETAILED DESCRIPTION

[0026] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0027] The rare earth polishing powder dehydration and filtration device according to an embodiment of the present application will be described below in conjunction with the accompanying drawings.

[0028] like Figure 1-Figure 5 As shown, the rare earth polishing powder dehydration and filtration device of the embodiment of the present application may include a dehydration tank 10, a pressing mechanism 20 and a conveying assembly 30.

[0029] Among them, a water outlet 101 is provided at the lower side of the dehydration tank 10, and a filter press cartridge 12 is mounted in the dehydration tank 10. The filter press cartridge 12 may include two side plates 121 and a top plate 122 and a bottom plate 123 arranged between the two side plates 121, wherein an inlet 13 and an outlet 14 are formed between the top plate 122 and the bottom plate 123, and a plurality of filter holes 1231 are evenly distributed on the bottom plate 123.

[0030] The squeezing mechanism 20 may include a driving member 21 , a fixed shaft 22 , and a plurality of squeezing rollers 23 , wherein the fixed shaft 22 is coaxially arranged inside the filter press 12 , the plurality of squeezing rollers 23 are circumferentially distributed outside the fixed shaft 22 , and the driving member 21 is connected to the plurality of squeezing rollers 23 .

[0031] The driving member 21 may include a first motor 211, two rotating disks 212, a first gear 213 and a plurality of second gears 214, wherein the two rotating disks 212 are movably arranged on the corresponding side plates 121, one of the rotating disks 212 movably penetrates the corresponding side plates 121 and the dewatering tank 10 in sequence and is sleeved with a rotating ring 2121, and the squeezing roller 23 penetrates the corresponding rotating disk 212 and is provided with a rotating shaft 231. One end of the fixed shaft 22 penetrates the corresponding rotating disk 212 and is connected to the side plate 121, and the other end of the fixed shaft 22 penetrates the other rotating disk 212 and is connected to the first gear 213, and the plurality of second gears 214 are sleeved on the outside of the corresponding rotating shaft 231, and the second gears 214 are meshed with the first gear 213, and the rotating ring 2121 is arranged on the outside of the second gears 214. The first motor 211 is disposed on the first seat body 102 outside the dehydration tank 10 , and the output end of the first motor 211 is connected to a driving shaft 2111 . The driving shaft 2111 and the outer side of the rotating ring 2121 are sleeved with a first synchronous belt 50 .

[0032] In the embodiment of the present application, the fixed shaft 22 is fixedly connected to the filter cartridge, the turntable 212 can limit the positions of the plurality of squeezing rollers 23, and the turntable 212 can drive the mounting ring 311 and the rotating ring 2121 thereon to rotate synchronously.

[0033] It should be noted that the driving member 21 described in this embodiment can drive two turntables 212 and multiple squeezing rollers 23 to rotate. When the first motor 211 is started and drives the driving shaft 2111 to rotate, the driving shaft 2111 drives the rotating ring 2121 to rotate through the first synchronous belt 50. The rotation of the rotating ring 2121 can drive the turntable 212 connected thereto to rotate synchronously. The turntable 212 drives another turn synchronously through the squeezing roller 23. At the same time, the turntable 212 can drive the two mounting rings 311 to rotate. During the process, the second gear 214 outside the squeezing roller 23 rotates around the outer periphery of the first gear 213, so that the multiple squeezing rollers 23 can rotate while rotating in a circle with the turntable 212 as the virtual center. In this way, the multiple squeezing rollers 23 can perform efficient squeezing operations on the conveying assembly 30. In addition, the synchronous rotation of the two mounting rings 311 can drive the first squeezing belt 31 to rotate.

[0034] The conveying assembly 30 may include a first extrusion belt 31 and a second extrusion belt 32, wherein the first extrusion belt 31 is sleeved on the outside of the plurality of extrusion rollers 23, the first extrusion belt 31 is detachable and has mounting rings 311 at both ends thereof, the mounting rings 311 are movably mounted on the corresponding side plates 121, and the mounting rings 311 are connected to the corresponding turntables 212. The second extrusion belt 32 is disposed in the dewatering tank 10 via a rotating member 40, and the bottom plate 123 is disposed on the inner side of the second extrusion belt 32.

[0035] An upper scraper 80 is provided between the two side plates 121, and the end of the upper scraper 80 is in sliding contact with the first extrusion belt 31, and the upper scraper 80 is located at the outlet 14. A lower scraper 90 is provided on the dewatering trough 10, and the end of the lower scraper 90 is in sliding contact with the second extrusion belt 32. One side of the dewatering trough 10 is provided in an inclined shape that matches the lower scraper 90.

[0036] It should be noted that the second extrusion belt 32 described in this embodiment is made of a breathable and soft material such as polyester or polypropylene, which allows the water in the mixed liquid to pass through the second extrusion belt 32 more smoothly, thereby improving the filtration efficiency. The first extrusion belt 31 described in this embodiment is made of an airtight and smooth material, thereby preventing the water from passing through the first extrusion belt 31, and at the same time, the upper scraper 80 can efficiently remove the solid particles on the surface of the first extrusion belt 31.

[0037] It should be noted that the rotating member 40 described in this embodiment can drive the second extrusion belt 32 to operate, so that the second extrusion belt 32 can operate in coordination with the first extrusion belt 31, and cooperate with the extrusion mechanism 20 and the filter press 12, so as to efficiently extrude the mixed liquid placed between the second extrusion belt 32 and the first extrusion belt 31.

[0038] Specifically, when the mixed liquid containing rare earth polishing powder needs to be dehydrated and filtered, the relevant personnel first pour the mixed liquid from the inlet 13 into the space between the first extrusion belt 31 and the second extrusion belt 32 .

[0039] Under the joint action of the rotating member 40 and the driving member 21 , the first extrusion belt 31 and the second extrusion belt 32 can work together to transfer the mixed liquid entering from the inlet 13 to the outlet 14 .

[0040] During the mixed liquid transmission process, the multiple squeezing rollers 23 can rotate in a circle with the turntable 212 as the virtual center, and can also rotate on their own, so that the multiple squeezing rollers 23 can perform efficient squeezing operations on the transmission assembly 30. In this process, the water released by squeezing can smoothly pass through the second squeezing belt 32 and the filter hole 1231 in sequence, and can naturally flush the second squeezing belt 32, and finally be discharged into the dewatering tank 10. This design not only optimizes the effect of dehydration and filtration, effectively improves the dehydration quality, but also avoids the pressure increase that may be caused by water accumulation, ensuring the stability and smoothness of the entire filtration process.

[0041] The solid particles in the mixed liquid are intercepted by the conveying component 30 and then conveyed to the outlet 14 through the conveying component 30. The upper scraper 80 can scrape off the solid particles on the first extrusion belt 31, and the lower scraper 90 can scrape off the solid particles on the second extrusion belt 32, thereby realizing the collection of solid particles.

[0042] In one embodiment of the present application, Figure 1-Figure 3 As shown, the rotating member 40 may include a second motor 41 and four conveying rollers 42, wherein the four conveying rollers 42 are all arranged on the inner side of the second extrusion belt 32, and the four conveying rollers 42 are respectively arranged on the top of the baffle 124, the end of the bottom plate 123 and the two sides of the dewatering tank 10, one end of each conveying roller 42 passes through the dewatering tank 10 and is provided with a rotating wheel 421, and the four rotating wheels 421 are synchronously connected through a transmission assembly. The second motor 41 is arranged on the second seat body 103 outside the dewatering tank 10, and the output end of the second motor 41 is connected to one of the rotating wheels 421.

[0043] It should be noted that the sizes of the four conveying rollers 42 described in this embodiment can be set according to actual conditions. The transmission assembly described in this embodiment can drive the four rotating wheels 421 to rotate synchronously and in the same direction. The transmission assembly can be a plurality of second synchronous belts 60, and the four rotating wheels 421 are respectively arranged on the inner side of the second synchronous belts 60.

[0044] Specifically, when relevant personnel need to drive the second extrusion belt 32 to run through the rotating member 40, first start the second motor 41, and the second motor 41 drives the rotating wheel 421 connected to it to rotate. Then, under the action of the transmission component, the four rotating wheels 421 can rotate synchronously and in the same direction, so that the four conveying rollers 42 can operate synchronously and realize the conveyance of the second extrusion belt 32.

[0045] In one embodiment of the present application, Figure 1-Figure 3 As shown, a baffle 124 is extended upwardly from one end of the bottom plate 123, the second extrusion belt 32 is sleeved on the outside of the baffle 124, and a limiting sleeve 70 is sleeved on the outside of the baffle 124, and the second extrusion belt 32 is located between the baffle 124 and the limiting sleeve 70. It can be understood that the setting of the limiting sleeve 70 can not only stabilize the position of the second extrusion belt 32, but also efficiently wipe away the residual moisture on its surface, thereby greatly promoting the smooth operation of the second extrusion belt 32.

[0046] In summary, the rare earth polishing powder dehydration and filtration device of the embodiment of the present application, through the synergistic effect of the first extrusion belt and the second extrusion belt, efficiently extrude the mixed liquid placed between the two. In this process, the water produced by the extrusion will be guided to the second extrusion belt below and smoothly discharged into the dehydration tank. This single-sided drainage design not only optimizes the effect of dehydration and filtration, effectively improves the dehydration quality, but also avoids the pressure increase that may be caused by water accumulation, ensuring the stability and smoothness of the entire filtration process.

[0047] In the description of this specification, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0049] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and deform the above embodiments within the scope of the present application.

Claims

1. A rare earth polishing powder dehydration filter press device, characterized in that: It comprises a dewatering tank (10), an extrusion mechanism (20) and a conveying assembly (30), wherein: A water outlet (101) is provided at the lower side of the dewatering tank (10), a filter press (12) is arranged inside the dewatering tank (10), and the filter press (12) comprises two side plates (121) and a top plate (122) and a bottom plate (123) arranged between the two side plates (121), wherein an inlet (13) and an outlet (14) are formed between the top plate (122) and the bottom plate (123), and a plurality of filter holes (1231) are evenly distributed on the bottom plate (123); The squeezing mechanism (20) comprises a driving member (21), a fixed shaft (22), and a plurality of squeezing rollers (23), wherein: The fixed shaft (22) is coaxially arranged inside the filter press cylinder (12); The plurality of squeezing rollers (23) are circumferentially distributed outside the fixed shaft (22); The driving member (21) is connected to the plurality of squeezing rollers (23); The conveying assembly (30) comprises a first extrusion belt (31) and a second extrusion belt (32), wherein: The first extrusion belt (31) is sleeved on the outside of the plurality of extrusion rollers (23); the first extrusion belt (31) is detachable and has mounting rings (311) at both ends thereof; the mounting rings (311) are movably mounted on the corresponding side plates (121); an upper scraper (80) is disposed between the two side plates (121); an end of the upper scraper (80) is in sliding contact with the first extrusion belt (31); The second extrusion belt (32) is arranged in the dewatering trough (10) through a rotating member (40), and a plurality of second filter holes (1231) are evenly distributed on the second extrusion belt (32). The bottom plate (123) is arranged on the inner side of the second extrusion belt (32). A lower scraper (90) is provided on the dewatering trough (10), and an end of the lower scraper (90) is in sliding contact with the second extrusion belt (32).

2. The rare earth polishing powder dehydration filter press device according to claim 1, characterized in that: The driving member (21) comprises a first motor (211), two rotating disks (212), a first gear (213) and a plurality of second gears (214), wherein: The two rotating disks (212) are movably arranged on the corresponding side plates (121), one of the rotating disks (212) movably penetrates the corresponding side plates (121) and the dewatering tank (10) in sequence and is sleeved with a rotating ring (2121), and the squeezing roller (23) penetrates the corresponding rotating disk (212) and is provided with a rotating shaft (231); One end of the fixed shaft (22) passes through the corresponding rotating disk (212) and is connected to the side plate (121), and the other end of the fixed shaft (22) passes through another rotating disk (212) and is connected to the first gear (213); A plurality of second gears (214) are respectively sleeved on the outside of the corresponding rotating shaft (231), and the second gears (214) are meshed with the first gear (213), and the rotating ring (2121) is arranged on the outside of the second gears (214); The first motor (211) is arranged on a first seat (102) outside the dewatering tank (10); an output end of the first motor (211) is connected to a driving shaft (2111); and a first synchronous belt (50) is sleeved on the outside of the driving shaft (2111) and the rotating ring (2121).

3. The rare earth polishing powder dehydration filter press device according to claim 2, characterized in that: The mounting ring (311) is connected to the corresponding rotating disk (212).

4. The rare earth polishing powder dehydration filter press device according to claim 1, characterized in that: A baffle (124) is provided at one end of the bottom plate (123) extending upward, the second extrusion belt (32) is sleeved on the outside of the baffle (124), and a limiting sleeve (70) is sleeved on the outside of the baffle (124), and the second extrusion belt (32) is located between the baffle (124) and the limiting sleeve (70).

5. The rare earth polishing powder dehydration filter press device according to claim 4, characterized in that: The rotating member (40) includes a second motor (41) and four conveying rollers (42), wherein: The four conveying rollers (42) are all arranged on the inner side of the second extrusion belt (32), and the four conveying rollers (42) are respectively arranged on the top of the baffle (124), the end of the bottom plate (123) and the two sides of the dewatering groove (10), one end of each conveying roller (42) passes through the dewatering groove (10) and is provided with a rotating wheel (421), and the four rotating wheels (421) are synchronously connected through a transmission assembly; The second motor (41) is arranged on a second base body (103) outside the dehydration tank (10), and an output end of the second motor (41) is connected to one of the rotating wheels (421).

6. The rare earth polishing powder dehydration filter press device according to claim 1, characterized in that: One side of the dewatering trough (10) is arranged in a slope shape matching with the lower scraper (90).

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