Centrifugal filtering and washing equipment

Abstract

The utility model relates to the technical field of material washing, and discloses centrifugal filtering and washing equipment. The centrifugal filtering and washing equipment comprises a tank body, a filtering assembly and a cleaning assembly, wherein an accommodating cavity is formed in the tank body; the filtering assembly comprises a filtering piece, filtering holes are formed in the filtering piece, a clamping cavity is formed between the filtering piece and the inner wall of the tank body, and a liquid outlet is formed in the tank body; the cleaning assembly comprises a cleaning piece rotationally arranged in the containing cavity. Based on the centrifugal filtering and washing equipment provided by the utility model, in the rotating process of materials, liquid in the materials can be discharged through the filtering holes, the clamping cavity and the liquid discharging opening in sequence under the action of centrifugal force, and solids can be intercepted by the filtering piece, so that solid-liquid separation is realized, the solid-liquid separation effect is improved, and when the filtering holes are blocked, the materials can be filtered by the filtering piece. The filter part can be cleaned and blocked through the rotating cleaning part, and a good filtering effect of the filter part is kept, so that the washing and filtering speed is increased, and the production efficiency of products is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to material washing technical field, concretely relates to a centrifugal filter washing equipment. BACKGROUND

[0002] In the field of petrochemical industry, fine chemical industry, pharmaceutical manufacturing, special material, reaction synthesis, washing, filtering operation process are often encountered, and washing and filtering need to be carried out in special atmosphere protection closed environment, and reaction, filtering and washing are completed in the same equipment, which needs to prepare special equipment to complete.

[0003] Based on the particularity of the above production process, liquid-solid separation is carried out in a special atmosphere protection closed environment, and most of the traditional reactors are used for liquid-solid separation by gravity sedimentation method, but the sedimentation method has long liquid-solid separation time and low separation efficiency, which leads to low production efficiency of the whole product production line. SUMMARY

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the utility model provides a centrifugal filter washing equipment.

[0005] The utility model provides a centrifugal filter washing equipment, which comprises:

[0006] The tank body is internally formed with a containing cavity;

[0007] The filter assembly comprises a filter element rotatably arranged in the containing cavity, the filter element is provided with filter holes, a clamping cavity is formed between the filter element and the inner wall of the tank body, the tank body is provided with a liquid discharge port communicated with the clamping cavity, and the filter element is arranged to be capable of driving the liquid in the containing cavity to rotate during rotation.

[0008] The cleaning assembly comprises a cleaning element rotatably arranged in the containing cavity, and the cleaning element is arranged to be capable of scraping the particulate matter on the filter element during rotation.

[0009] Optionally, the centrifugal filter washing equipment further comprises a driving assembly, and the driving assembly can selectively drive the filter element or the cleaning element to rotate.

[0010] Optionally, the driving assembly comprises a driving member and a switching member, the driving member is arranged on the top of the tank body and is configured to:

[0011] The output shaft of the driving member is selectively in transmission connection with the filter member and the cleaning member under the action of the switching member.

[0012] Optionally, the switching member comprises a lifting member arranged on the tank body, the lifting member can drive the shell of the driving member to move along the vertical direction.

[0013] The top of the filter member is provided with a rotating sleeve, the rotating sleeve is in rotating cooperation with the top of the tank body, the cleaning shaft of the cleaning member extends into the interior of the rotating sleeve and is in rotating cooperation with the rotating sleeve.

[0014] The output shaft of the driving member extends into the rotating sleeve, the outer periphery of the output shaft of the driving member is provided with a first protrusion and a second protrusion, the position corresponding to the first protrusion of the filter member is provided with a first clamping groove, the bottom of the first clamping groove is provided with a first guide surface, the first guide surface is inclined towards the direction of the first clamping groove, the position corresponding to the second protrusion of the cleaning member is provided with a second clamping groove, the top of the second clamping groove is provided with a second guide surface, the second guide surface is inclined towards the direction of the second clamping groove.

[0015] Optionally, the filter member comprises a filter screen arranged in the interior of the tank body, the filter screen can rotate relative to the tank body.

[0016] Optionally, the cleaning member comprises a cleaning shaft arranged in the interior of the tank body in a rotating mode and a frame type scraper arranged on the cleaning shaft, the frame type scraper is arranged in a spaced mode with the inner wall of the filter member.

[0017] Optionally, the centrifugal type filter and washing device further comprises a temperature adjusting device, the temperature adjusting device is used for adjusting the temperature of the material in the interior of the tank body.

[0018] Optionally, the temperature adjusting device comprises a jacket arranged on the outer periphery of the tank body, a liquid supply cavity is formed between the jacket and the tank body, the jacket is connected with a liquid supply pipeline used for providing medium towards the liquid supply cavity.

[0019] Optionally, the centrifugal type filter and washing device further comprises a pressure control unit, the pressure control unit comprises a pressure control pipeline arranged on the tank body, the pressure control pipeline is provided with a pressure adjusting valve.

[0020] The centrifugal type filter and washing device further comprises a purging assembly, the purging assembly comprises a purging pipeline used for introducing purging gas, the purging pipeline is in communication with the jacket cavity.

[0021] Optionally, the top of the tank body is provided with a feeding unit.

[0022] And / or, the bottom of the tank body is provided with a discharging unit.

[0023] The technical scheme provided by the utility model has the following advantages compared with the prior art:

[0024] Based on the centrifugal filter washing equipment, the material is washed in the containing cavity, or the material to be separated enters the containing cavity, the filter part rotates with the material, the liquid in the material will be discharged through the filter hole, the clamping cavity and the liquid discharge port in turn under the action of the centrifugal force in the rotating process, and the solid will be intercepted by the filter part, so that the solid-liquid separation is realized, the solid-liquid separation effect is increased, and when the filter hole is blocked, the filter part can be cleaned by the rotating cleaning part to unblock, the good filtering effect of the filter part is maintained, so that the washing and filtering speed is improved, and the product production efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] The drawings incorporated into the specification and constituting a part of the specification show embodiments consistent with the utility model and, together with the specification, serve to explain the principle of the utility model.

[0026] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows, and obviously, other drawings can be obtained by those skilled in the art without creative labor on the premise of not paying the creative labor.

[0027] Figure 1 The structure diagram of the centrifugal filter washing equipment according to the utility model embodiment is shown in the figure.

[0028] Figure 2 The structure diagram of the cleaning part according to the utility model embodiment is shown in the figure.

[0029] EXPLANATION OF REFERENCE NUMERALS

[0030] 1. Tank body; 11. Receiving cavity; 12. Filtrate discharge pipe; 13. Filtrate discharge valve; 2. Filter assembly; 21. Filter element; 22. Jacket cavity; 3. Cleaning assembly; 31. Cleaning element; 311. Cleaning shaft; 312. Frame scraper; 4. Drive assembly; 41. Drive element; 42. Rotating sleeve; 5. Purge assembly; 51. Purge pipeline; 52. Pipeline valve; 6. Temperature control device; 61. Jacket; 62. Liquid supply chamber; 63. Liquid supply pipeline; 64. Liquid supply valve; 7. Pressure control unit; 71. Pressure control pipeline; 72. Pressure regulating valve; 73. Pressure display; 8. Feeding unit; 81. Feeding pipe; 82. Feeding valve; 9. Discharge unit; 91. Discharge pipe; 92. Discharge valve. Detailed Implementation

[0031] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments and features of this utility model can be combined with each other.

[0032] The following description sets forth many specific details to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments described in the specification are only some embodiments of the present invention, and not all embodiments.

[0033] like Figure 1 As shown, the centrifugal filtration and washing equipment provided in this embodiment of the present invention includes a tank 1, a filter assembly 2, and a cleaning assembly 3.

[0034] The inside of the tank body 1 is formed with a containing cavity 11, wherein the containing cavity 11 is used for containing materials, so that the materials are washed in the containing cavity 11, and the shape of the containing cavity 11 is not limited and can be cylindrical or the like. The filtering assembly 2 comprises a filtering piece 21 which is rotationally arranged in the containing cavity 11, and the filtering piece 21 is provided with filter holes, the filtering piece 21 is provided with a plurality of filter holes which are uniformly distributed on the filtering piece 21. The size of the filter holes is smaller than the size of the solid particles in the materials, which is beneficial to the filtered liquid in the materials to pass through the filtering piece 21, and the solid particles in the materials are intercepted in the containing cavity 11, so that the separation of the solid materials and the liquid materials is realized through the filtering piece 21. The filtering piece 21 and the inner wall of the tank body 1 form a clamping cavity 22, the tank body 1 is provided with a liquid discharge port which is communicated with the clamping cavity 22, and the filtering piece 21 is arranged to be capable of driving the liquid in the containing cavity 11 to rotate in the rotation process. In the washing process, the liquid discharge port is in a closed state, the rotation of the filtering piece 21 can drive the materials to rotate, and then the washing of the materials is realized. After the washing is completed, the liquid discharge port is opened, under the action of the centrifugal force, the liquid materials will be discharged through the filtering piece 21, the clamping cavity 22 and the liquid discharge port, and the solid materials will be left in the filtering piece 21, so that the separation of the solid materials and the liquid materials is realized. The cleaning assembly 3 comprises a cleaning piece 31 which is rotationally arranged in the inside of the containing cavity 11, and the cleaning piece 31 is arranged to be capable of scraping the particles on the filtering piece 21 in the rotation process.

[0035] Based on the centrifugal filtering and washing equipment, the materials are washed in the containing cavity 11, or the materials to be separated enter the containing cavity 11, the filtering piece 21 drives the materials to rotate, the liquid in the materials will be discharged through the filter holes, the clamping cavity 22 and the liquid discharge port in sequence under the action of the centrifugal force in the rotation process, and the solid will be intercepted by the filtering piece 21, so that the solid-liquid separation is realized, the solid-liquid separation effect is increased, and when the filter holes are blocked, the filtering piece 21 can be cleaned by the rotating cleaning piece 31, the filtering effect of the filtering piece 21 is maintained, so that the washing and filtering speed is improved, and the product production efficiency is improved. Compared with the prior art, the centrifugal filtering and washing equipment does not need to be statically layered in the washing process, the filter pressing operation can be performed in the washing and stirring process, the washing and filtering time is greatly reduced, and the production efficiency is improved by several times.

[0036] In some embodiments, the centrifugal filtering and washing equipment further comprises a driving assembly 4 which can selectively drive the filtering piece 21 or the cleaning piece 31 to rotate.

[0037] In the design mode, the driving assembly 4 can drive the filtering piece 21 to rotate without driving the cleaning piece 31 to rotate in the separation process, so that the solid-liquid separation is realized. In the cleaning process, the driving assembly 4 drives the cleaning piece 31 to rotate without driving the filtering piece 21 to rotate, so that the cleaning of the filtering piece 21 is realized and the filtering effect of the cleaning piece 31 is ensured. The design mode can realize automatic control and increase the work efficiency.

[0038] In some embodiments, the driving assembly 4 comprises a first driving motor assembly and a second driving motor assembly, the first driving motor is used to drive the filter 21 to rotate, and the second driving motor is used to drive the cleaning member 31 to rotate. Specifically, the output shaft of the first driving motor is in transmission connection with the filter shaft of the filter 21, the output shaft of the second driving motor is in transmission connection with the cleaning shaft 311 of the cleaning member 31, and the output shaft of the first driving motor is coaxially arranged with the filter shaft and the cleaning shaft 311, and the output shaft of the second driving motor is arranged in a vertical direction offset from the output shaft of the first driving motor, and the output shaft of the second driving motor is in meshing connection with the cleaning shaft 311 through a transmission wheel, so as to ensure the driving effect. In this design, the driving assembly 4 comprises two driving sources to drive the filter 21 and the cleaning member 31 respectively, and the driving structure is simplified.

[0039] In some embodiments, the driving assembly 4 comprises a driving member 41 and a switching member. The driving member 41 is arranged at the top of the tank body 1, and is configured such that the output shaft of the driving member 41 can be selectively in transmission connection with the filter 21 and the cleaning member 31 under the action of the switching member.

[0040] In this design, one driving member 41 can be used to drive the filter 21 and the cleaning member 31, thereby reducing the number of driving sources and the cost of components.

[0041] In some embodiments, the driving member 41 comprises a driving motor, a speed reducer and a frequency converter, and the driving motor, the speed reducer and the frequency converter are integrated in a motor housing. The speed reducer is arranged at the top of the tank body 1, the driving motor is arranged at the top and one side of the speed reducer, the output shaft of the driving motor is in transmission connection with the input shaft of the speed reducer, the output shaft of the speed reducer extends along the vertical direction and extends downward into the tank body 1. The tank body 1 is in sealing connection with the output shaft of the speed reducer, and the sealing effect can be ensured by a sealing ring or the like. The frequency converter is used to change the rotation speed of the driving motor, and the rotation speed of the driving motor is adjusted according to the required rotation frequency, so as to achieve the purpose of controlling the product quality. The way in which the frequency converter changes the rotation speed of the driving motor is a conventional technology in the art, and the working principle thereof will not be described in detail here.

[0042] In some embodiments, the switching piece comprises a lifting piece arranged on the tank body 1, wherein the lifting piece can be an electric push rod or the like, which can be selected according to actual needs. The lifting piece can drive the shell of the driving piece 41 to move in the vertical direction, specifically, the lifting piece can drive the motor shell to move in the vertical direction, thereby driving the driving piece and the output shaft thereof to move in the vertical direction. The filter piece 21 is coaxially arranged with the cleaning piece 31. The top of the filter piece 21 is provided with a rotating sleeve 42, which is rotationally connected with the top of the tank body 1, so as to drive the filter piece 21 to rotate through the rotating sleeve 42. The cleaning shaft 311 of the cleaning piece 31 extends to the inside of the rotating sleeve 42 and is supported on the bottom plate of the rotating sleeve 42. The cleaning shaft 311 is rotationally connected with the rotating sleeve 42 and is supported by the rotating sleeve 42.

[0043] The output shaft of the driving piece 41 extends into the rotating sleeve 42. The output shaft of the driving piece 41 is provided with a first protrusion and a second protrusion. The first protrusion and the second protrusion are located in the rotating sleeve 42. The second protrusion is located at the bottom of the output shaft of the driving piece 41. The rotating sleeve 42 of the filter piece 21 is provided with a first clamping groove at a position corresponding to the first protrusion. The bottom of the first clamping groove is provided with a first guide surface, which is inclined toward the first clamping groove. The cleaning shaft 311 of the cleaning piece 31 is provided with a second clamping groove at a position corresponding to the second protrusion. The top of the second clamping groove is provided with a second guide surface, which is inclined toward the second clamping groove.

[0044] When it is needed to drive the filter piece 21 to rotate through the driving piece, the lifting piece drives the motor shell to move upward. At this time, the first protrusion is in contact with the first guide surface, and the first protrusion drives the output shaft of the driving piece or the rotating sleeve 42 to rotate until the first protrusion slides into the first clamping groove, and the second protrusion is separated from the second clamping groove. At this time, the rotating sleeve 42 and the filter piece 21 can be driven to rotate through the rotation of the output shaft of the driving piece, without driving the cleaning piece 31 to rotate.

[0045] When it is needed to drive the cleaning piece 31 to rotate through the driving piece, the lifting piece drives the motor shell to move downward. At this time, the second protrusion is in contact with the second guide surface, and the second protrusion drives the output shaft of the driving piece or the cleaning shaft 311 of the cleaning piece 31 to rotate until the second protrusion slides into the second clamping groove, and the first protrusion is separated from the first clamping groove. At this time, the cleaning piece 31 can be driven to rotate through the rotation of the output shaft of the driving piece, without driving the filter piece 21 to rotate.

[0046] In the initial stage of filtration, the switching member converts the rotating force to the filtering member 21, and under the action of the rotating centrifugal force of the filtering member 21, the solid particles in the material (filtrate) are intercepted in the containing cavity 11 by the filtering member 21, while the filtrate in the material quickly passes through the filtering member 21, and the filtrate passes through the filtering member 21, the clamping cavity 22 and the liquid discharge port in sequence and is discharged, so as to achieve the effect of quickly separating solid and liquid. When the thickness of the filter cake on the filtering member 21 reaches a certain degree, the rotating member can be adjusted to switch the rotation of the rotating member to the cleaning member 31. The cleaning member 31 rotates to scrape off the filter cake formed on the filtering member 21, preventing the filter cake from blocking the filter holes of the filtering member 21, and facilitating to improve the filtration speed.

[0047] In this design, the switching member can realize the quick switching of the rotation of the filtering member 21 and the rotation of the cleaning member 31, and can reduce the cost of the driving source.

[0048] In some embodiments, the filtering member 21 includes a filter screen arranged inside the tank body 1, and the filter screen is uniformly provided with a plurality of filter holes. The filter screen can rotate relative to the tank body 1. Specifically, the filter screen is supported on the inner wall of the tank body 1 by a support structure. For example, the support structure includes a support tray and a support ring arranged on the inner wall of the tank body 1. The support tray supports the bottom of the filter screen, and the support ring supports the middle position of the filter screen. The filter screen can rotate relative to the support tray and the support ring. The filter screen can drive the material passing through the filter holes to rotate by its own rotation, thereby driving the material in the tank body 1 to rotate, achieving the effect of stirring the material or separating the material. At this time, the filter screen is supported by the frame. Alternatively, a plurality of push plates are arranged on the inner wall of the filter screen along the vertical direction, thereby driving the material to rotate by the plurality of push plates, and the push plates support the filter screen.

[0049] In this design, the structure of the filter screen is convenient to design, and the filter screen is arranged along the entire inner wall of the containing cavity 11, so that the filtering area is large, the washing and filtering speed is fast, and the production efficiency is high.

[0050] In some embodiments, as shown in Figure 2 The cleaning member 31 includes a cleaning shaft 311 rotatably arranged inside the tank body 1 and a frame scraper 312 arranged on the cleaning shaft 311. The cleaning shaft 311 extends along the vertical direction, and the cleaning shaft 311 is coaxially arranged with the tank body 1. The frame scraper 312 includes a vertically extending scraper and a support rod for supporting the scraper on the inner wall of the filtering member 21. The frame scraper 312 is arranged in a spaced manner with the inner wall of the filtering member 21, specifically, the frame scraper 312 is arranged in a spaced manner with the inner wall of the filter screen.

[0051] The structure of the cleaning member 31 in this design is simple, and the rotation of the cleaning member 31 drives the support rod and the scraper to rotate, so as to scrape the material on the cleaning member 31 by the scraper. The operation is convenient, and the cleaning effect can be ensured at the same time.

[0052] In some embodiments, the height of the scraper should correspond to the height of the filter screen, and the cover plate should be as close as possible to the inner wall of the filter screen. The distance between the filter screen and the scraper is 10-100 mm, which helps to scrape the filter cake on the filter screen clean, ensures the cleaning effect of the filter screen, avoids the formation of a large amount of filter cake, hinders the filtrate in the filter hole of the filter element 21, thereby improving the washing and filtering speed and improving the product production efficiency.

[0053] In some embodiments, the centrifugal filter washing device further comprises a purging assembly 5, which comprises a purging pipeline 51 for introducing purging gas, and the purging pipeline 51 is in communication with the clamping cavity 22.

[0054] Specifically, one end of the purging pipeline 51 is connected with a fluid supply device, and the other end of the purging pipeline 51 is arranged on the side wall of the tank body 1 and is in communication with the clamping cavity 22. The fluid supply device supplies fluid to the clamping cavity 22 through the purging pipeline 51, and the fluid acts on the filter element 21 to remove the solid particulate matter blocked on the filter element 21. The purging pipeline 51 is provided with a pipeline valve 52, so as to control the opening and closing of the purging pipeline 51 through the pipeline valve 52 for convenient control. The reverse purging preferably uses any one or more than one combination of nitrogen, helium, organic solvent and water.

[0055] Under this design, the filter element 21 can be subjected to reverse purging operation by the purging assembly 5. When the viscosity of the filtered solid particles is large and the particles are small, after a period of filtration, the filter hole of the filter element 21 is blocked by the filtered solid particulate matter, and the filtrate cannot pass through the filter element 21, so that the filtration cannot be carried out. At this time, the filtration can be stopped, and the filter element 21 can be subjected to reverse purging by nitrogen or solvent introduced from the purging assembly 5. The filter hole of the filter element 21 is blown open, so that the goal of rapid filtration can be restored, and the work efficiency is increased. In addition, the purging assembly 5 can be regularly purged to purge the filter element 21, so as to timely clean and process the blocked filter hole of the filter element 21, maintain the good filtering effect of the filter element 21, thereby improving the washing and filtering speed and improving the product production efficiency.

[0056] In some embodiments, the centrifugal filter washing device further comprises a temperature adjusting device 6 for adjusting the temperature of the material in the tank body 1.

[0057] Under this design, the material in the tank body 1 can be heated or cooled by the temperature adjusting device 6, so as to ensure that the material operates at a suitable temperature.

[0058] In some embodiments, the temperature adjusting device 6 comprises a jacket 61 arranged on the outer periphery of the tank body 1, a liquid supply cavity 62 is formed between the jacket 61 and the tank body 1, and a liquid supply pipeline 63 is connected to the jacket 61 and used to supply medium to the liquid supply cavity 62. The liquid supply pipeline 63 is provided with a liquid supply valve 64, which is used to control the opening and closing of the liquid supply pipeline 63 and the flow of the medium. The medium can be any one of steam, circulating water and heat conducting oil.

[0059] In this design, the liquid supply pipeline 63 can supply medium at a corresponding temperature to the liquid supply cavity 62 inside the jacket 61, so as to heat or cool the tank body 1 through the medium in the liquid supply cavity 62, and then heat or cool the material in the tank body 1. The operation is convenient, and the jacket 61 covers the lower half of the tank body 1, so that the temperature of the material in the tank body 1 is uniform.

[0060] In some embodiments, the centrifugal filter and washing device further comprises a pressure control unit 7, which comprises a pressure control pipeline 71 arranged on the tank body 1, and the pressure control pipeline 71 is provided with a pressure regulating valve 72.

[0061] In this design, the pressure control pipeline 71 can introduce gas into the containing cavity 11 to increase the pressure in the containing cavity 11 and increase the discharge effect of the liquid. In addition, when the filter element 21 is back-flushed, the pressure can be released by opening the pressure regulating valve 72, or when the filtration needs to be stopped, the gas in the containing cavity 11 can be discharged through the pressure control pipeline 71. In addition, the tank body 1 is further provided with a pressure display 73, which can display the pressure value in the containing cavity 11, so that the staff can intuitively observe the pressure in the containing cavity 11, and the safety of use is ensured. The gas introduced by the pressure control pipeline 71 is preferably nitrogen or helium.

[0062] In some embodiments, the top of the tank body 1 is provided with a feeding unit 8. The feeding unit 8 comprises a feeding pipe 81 in communication with the top of the tank body 1 and a feeding valve 82 arranged on the feeding pipe 81, which is used to control the opening and closing of the feeding pipe 81. The feeding pipe 81 is in communication with the containing cavity 11. The material to be filtered enters the containing cavity 11 through the feeding pipe 81, and the washing solvent also enters the containing cavity 11 from the feeding pipe 81, which is used to wash the filter cake. That is, the centrifugal filter and washing device of the present application can be used for filtering (solid-liquid separation) and washing of the material, and can ensure that the liquid after washing can be discharged, and the collection of the material after washing is facilitated.

[0063] In some embodiments, the bottom of the tank body 1 is provided with a discharge unit 9. The discharge unit 9 includes a discharge pipe 91 communicating with the bottom of the tank body 1 and a discharge valve 92 arranged on the discharge pipe 91, so as to control the opening and closing of the discharge pipe 91 through the discharge valve 92. The discharge pipe 91 communicates with the containing cavity 11. After the filtration operation is completed, the filtered solid material can be discharged from the discharge pipe 91, so as to facilitate the collection of the solid material.

[0064] In some embodiments, a filtrate discharge pipe 12 and a filtrate discharge valve 13 are connected to the liquid outlet. The opening and closing of the filtrate discharge pipe 12 is controlled through the filtrate discharge valve 13, so as to control the discharge of the filtrate (liquid material) in the containing cavity 11.

[0065] The working process of the centrifugal filtration and washing device provided in the present application is as follows:

[0066] After the material in the containing cavity 11 is reacted or the material to be filtered enters the containing cavity 11 from the feeding pipe 81, the switching piece is opened, and the switching piece converts the rotating force to the filtering piece 21. Through the control of the frequency converter, the filtering piece 21 rotates at a certain speed. Under the centrifugal force of the filtering piece 21, the filtrate is quickly discharged through the filtering piece 21, the clamping cavity 22 and the liquid outlet. The solid material in the filtrate is intercepted by the filtering piece 21, so as to achieve the purpose of solid-liquid separation.

[0067] During the filtration process, the containing cavity 11 can be pressurized by filling a certain gas into the pressure control pipe 71. After a certain period of time, the rotation of the rotating piece is switched to the cleaning piece 31, and the cleaning operation is started to scrape off the filter cake on the filtering piece 21 through the cleaning piece 31. In addition, when the filtration speed is reduced or the channel of the filtering piece 21 is blocked during the filtration process, the filtration can be stopped, the pressure in the containing cavity 11 is released, the gas or solvent is filled into the purge assembly 5, and the filtering piece 21 is blown in the reverse direction, so as to clear the filter hole of the filtering piece 21 and restore the filtration effect. After the filtration is completed, the filter cake is washed or discharged from the discharge unit 9. When the filter cake is washed, the washing reagent can enter from the feeding unit 8.

[0068] The centrifugal filtration and washing device provided in the present application can be used for washing and filtration process, and can also be used for reaction synthesis. The product is easy to manufacture, the production cost is low, and the device can be widely used in the fields of petroleum chemical industry, fine chemical industry and pharmaceutical manufacturing.

[0069] It has to be noted that, in the present document, relational terms are intended only to convey a relative position and that the use of these terms is intended to include the negative of the state (e.g. "a first element does not include a second element", "a first element does not exclude a second element") and the removal or addition of the elements between two relativity linked elements (e.g. "a first element between a second element and a third element" or "second element and a third element between a first element").

[0070] The foregoing is merely illustrative of the principles of the application and various modifications can be made by those skilled in the art without departing from the spirit and scope of the application. The above description is embodied in the form of specific examples. The application described and claimed herein can be modified and varied as desired. Such alternate, additional, and / or equivalent implementations should be considered as within the scope of the present application as defined in the claims.

Claims

1. A centrifugal filter washing apparatus characterized by, The centrifugal filter and washing device comprises a tank body (1) internally formed with a containing cavity (11), a filter assembly (2) comprising a filter piece (21) rotatably arranged in the containing cavity (11), the filter piece (21) being provided with filter holes, a clamping cavity (22) being formed between the filter piece (21) and the inner wall of the tank body (1), a liquid discharge port being provided on the tank body (1) and being in communication with the clamping cavity (22), the filter piece (21) being arranged to be capable of driving the liquid in the containing cavity (11) to rotate during rotation, and a cleaning assembly (3) comprising a cleaning piece (31) rotatably arranged in the containing cavity (11), the cleaning piece (31) being arranged to be capable of scraping the particulate matter on the filter piece (21) during rotation. The centrifugal filter and washing device further comprises a driving assembly (4) capable of selectively driving the filter piece (21) or the cleaning piece (31) to rotate. The driving assembly (4) comprises a driving piece (41) and a switching piece, the driving piece (41) being arranged on the top of the tank body (1) and being configured to: The output shaft of the driving piece (41) is selectively in driving connection with the filter piece (21) and the cleaning piece (31) under the action of the switching piece.

2. The centrifugal filter washing apparatus according to claim 1, characterized in that, The switching piece comprises a lifting piece arranged on the tank body (1), the lifting piece being capable of driving the housing of the driving piece (41) to move along the vertical direction.

3. The centrifugal filter washing apparatus according to claim 2, characterized in that, The top of the filter piece (21) is provided with a rotating sleeve (42), the rotating sleeve (42) being in rotational cooperation with the top of the tank body (1), the top of a cleaning shaft (311) of the cleaning piece (31) extending into the interior of the rotating sleeve (42) and being in rotational cooperation with the rotating sleeve (42); The output shaft of the driving piece (41) extends into the rotating sleeve (42), the outer periphery of the output shaft of the driving piece (41) being provided with a first protrusion and a second protrusion, a first clamping groove being provided at the position of the filter piece (21) corresponding to the first protrusion, the bottom of the first clamping groove being provided with a first guide surface, the first guide surface being inclined towards the direction of the first clamping groove, a second clamping groove being provided at the position of the cleaning piece (31) corresponding to the second protrusion, the top of the second clamping groove being provided with a second guide surface, the second guide surface being inclined towards the direction of the second clamping groove.

4. The centrifugal filter washing apparatus according to claim 3, wherein The filter piece (21) comprises a filter screen arranged in the interior of the tank body (1), the filter screen being capable of rotating relative to the tank body (1). The cleaning piece (31) comprises a cleaning shaft (311) rotatably arranged in the interior of the tank body (1) and a frame-type scraper (312) arranged on the cleaning shaft (311), the frame-type scraper (312) being arranged in spaced relation with the inner wall of the filter piece (21). The centrifugal filter and washing device further comprises a temperature adjusting device (6) for adjusting the temperature of the material in the interior of the tank body (1).

5. The centrifugal filter washing apparatus according to claim 1, wherein ​ 6. The centrifugal filter washing apparatus according to claim 1, wherein ​ 7. The centrifugal filter washing apparatus according to claim 1, wherein ​ 8. The centrifugal filter washing apparatus according to claim 7, wherein The temperature adjusting device (6) comprises a jacket (61) arranged on the outer periphery of the tank body (1), a liquid cavity (62) is formed between the jacket (61) and the tank body (1), and a liquid supply pipeline (63) for supplying medium to the liquid cavity (62) is connected to the jacket (61).

9. The centrifugal filter washing apparatus according to claim 1, wherein The centrifugal filter washing device further comprises a pressure control unit (7), the pressure control unit (7) comprises a pressure control pipeline (71) arranged on the tank body (1), and a pressure regulating valve (72) is arranged on the pressure control pipeline (71). And / or, the centrifugal filter washing device further comprises a purge assembly (5), the purge assembly (5) comprises a purge pipeline (51) for introducing purge gas, and the purge pipeline (51) is in communication with the jacket cavity (22).

10. The centrifugal filter washing apparatus according to claim 1, characterized by, A feeding unit (8) is arranged on the top of the tank body (1). And / or, a discharging unit (9) is arranged on the bottom of the tank body (1).

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