A raw material filtering device for producing pyromellitic dianhydride

Abstract

The present application relates to the technical field of production of pyromellitic dianhydride, and particularly relates to a raw material filtering device for production of pyromellitic dianhydride, which comprises a filter press body, a plurality of filter plates arranged at a filter pressing end of the filter press body, a filter pressing driving mechanism connected to a side wall of the filter press body, and a device frame, a water pump is installed at a top end of the device frame, and two cleaning mechanisms are arranged in an inner cavity of the device frame. The device avoids plugging of adsorption holes in subsequent adsorption from the source by a hierarchical processing mode of first washing and then adsorption, small impurities embedded in pores of the filter plate are removed by rotating adsorption wheels in cooperation with negative pressure adsorption, and the rotating washing pipe can realize uniform water spraying by angle switching, and the rotating adsorption wheel can switch the material suction groove, so that the problem of uneven local cleaning is solved, the problem of small water flow and difficult impurity removal caused by small filter cloth pores in backwashing is avoided, the cleaning time is shortened, the cleaning process is simplified, and the cleaning effect and efficiency of the filter cloth are significantly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of production of pyromellitic dianhydride, and particularly relates to a raw material filtering device for production of pyromellitic dianhydride. BACKGROUND

[0002] A raw material filtering device for pyromellitic dianhydride is disclosed in Chinese patent CN202420909251.0, which comprises a filtering mechanism, the filtering mechanism comprises a material tank, a plurality of mounting blocks are arranged in the material tank, a filter screen is arranged on the mounting blocks, a movable baffle is arranged on one side of the filter screen, a sliding groove is arranged on one side of the movable baffle, a round rod is arranged in the sliding groove, a fixing block is arranged on the movable baffle, a vertical column is arranged on the material tank, an auxiliary wheel is arranged on the vertical column, a first motor is arranged on the rear side of the material tank, a driving wheel is arranged on the first motor, a traction rope is arranged on the driving wheel, a placing plate is arranged on the front side of the material tank, and a second motor is arranged on the placing plate. The first motor is used to drive the driving wheel to rotate, the movable baffle is moved along the sliding groove through the cooperation of the traction rope and the auxiliary wheel, and the opening size of the filter screen is adjusted. The second motor is used to drive the screw rod to rotate, the sliding block is driven to slide in the limiting groove, and then the scraper on the supporting arm is driven to reciprocate on the filter screen, so that the impurities on the surface of the filter screen are automatically cleaned.

[0003] In the prior art including the above patent, the backwashing cleaning mode is only to use clean water to wash outward from the inside of the filter cloth, and the cleaning mode mainly has the following problems:

[0004] Due to the small filter pore of the filter cloth, the water flow is small during backwashing, and the stubborn impurities stuck in the pores are difficult to be washed off, so that the washing effect is poor; and the cleaning mode takes a long time, and the impurities attached to the surface of the filter cloth need to be cleaned again by other cleaning devices, which is complicated. SUMMARY

[0005] The purpose of the present application is to provide a raw material filtering device for production of pyromellitic dianhydride, which can remove the small impurities embedded in the pores of the filter plate by rotating the adsorption wheel and cooperating with negative pressure adsorption, and the rotating washing pipe can realize uniform water spraying through angle switching, and the rotating adsorption wheel can switch the material suction groove, so as to solve the problem of uneven local cleaning, avoid the problem of small water flow and difficult impurity removal caused by small filter cloth pores during backwashing, shorten the cleaning time, simplify the cleaning process, and significantly improve the cleaning effect and efficiency of the filter cloth.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme:

[0007] A raw material filtering device for production of pyromellitic dianhydride, comprising a filter press body, a plurality of filter plates arranged at the filter pressing end of the filter press body, a filter pressing driving mechanism connected to the side wall of the filter press body, and a device frame, a water pump is installed at the top end of the device frame, and two cleaning mechanisms are arranged in the inner cavity of the device frame.

[0008] The cleaning mechanism comprises:

[0009] A lifting driving assembly is installed at the top end of the device frame, one end of the lifting driving assembly is provided with two connecting adjustment assemblies, and one end of each of the two connecting adjustment assemblies is provided with a cleaning execution assembly;

[0010] The cleaning execution assembly comprises a mounting frame body, two rotating washing wheels are rotationally arranged in the inner cavity of the mounting frame body, and one end of each of the two rotating washing wheels is connected with a water pump through a hose;

[0011] Two rotating adsorption wheels are further rotationally arranged in the inner cavity of the mounting frame body, one end of each of the two rotating adsorption wheels is connected with an air suction pump through a pipeline, the air suction pump is arranged at the top end of the filter pressing driving mechanism, and the rotating adsorption wheels are in transmission connection with the rotating washing wheels.

[0012] As a preferred scheme of the present application, the lifting driving assembly comprises two lifting drivers, one end of each of the two lifting drivers is connected to the top end and the bottom end side wall of the inner cavity of the device frame, the other end of each of the two lifting drivers is connected with a lifting frame, the two sides of the lifting frame are provided with positioning blocks, a guide rod is slidably arranged in the center of the positioning blocks, one end of the guide rod is connected to the inner side wall of the water pump, and the other end of the guide rod is connected to the two end side walls of the filter press body.

[0013] As a preferred scheme of the present application, the connecting adjustment assembly comprises an adjustment driver, the adjustment driver is arranged at the bottom of the lifting frame, the bottom of the adjustment driver is provided with two adjustment arms, the other end of each of the adjustment arms is provided with a connecting rod, the other end of the connecting rod is provided with a mounting seat, the mounting seat is connected to the side wall of the mounting frame body, a water delivery pipe is arranged through the side wall of the mounting seat, a rotating motor is arranged in the inner cavity of the mounting seat, and a double-groove wheel is arranged at the power output end of the rotating motor.

[0014] As a preferred scheme of the present application, the bottom end of the mounting frame body is provided with a main washing nozzle group, a plurality of nozzles arranged in an array are arranged on the main washing nozzle group, the input ends of the plurality of nozzles are in communication with the water delivery pipe, and the other end of the water delivery pipe is connected with the output end of the water pump through a hose.

[0015] As a preferred scheme of the present application, the rotating washing wheel and the rotating adsorption wheel are both provided with two, the outer side of the two rotating washing wheels is provided with a plurality of washing spray holes, and one end of the rotating washing wheel is provided with a driven gear; the outer side wall of the two rotating adsorption wheels is provided with a plurality of adsorption grooves arranged in an annular array, and one end of the rotating adsorption wheel is provided with a transmission gear, the transmission gear and the driven gear are jointly provided with a driving gear, the center of the two driving gears is provided with a transmission shaft, one end of the transmission shaft is rotatably connected to the side wall of the mounting frame body, the other end of the transmission shaft is provided with a single-groove wheel, the single-groove wheel is drivingly connected to a double-groove wheel through a belt, and the other end of the rotating adsorption wheel is provided with a discharge port.

[0016] As a preferred scheme of the present application, the rotating washing wheel and the rotating adsorption wheel are both provided with two, the outer side of the two rotating washing wheels is provided with a plurality of washing spray holes, and one end of the rotating washing wheel is provided with a driven gear; the outer side wall of the two rotating adsorption wheels is provided with a plurality of adsorption grooves arranged in an annular array, and one end of the rotating adsorption wheel is provided with a transmission gear, the transmission gear and the driven gear are jointly provided with a driving gear, the center of the two driving gears is provided with a transmission shaft, one end of the transmission shaft is rotatably connected to the side wall of the mounting frame body, the other end of the transmission shaft is provided with a single-groove wheel, the single-groove wheel is drivingly connected to a double-groove wheel through a belt, and the other end of the rotating adsorption wheel is provided with a discharge port.

[0017] As a preferred scheme of the present application, the rotating washing wheel and the rotating adsorption wheel are both provided with two, the outer side of the two rotating washing wheels is provided with a plurality of washing spray holes, and one end of the rotating washing wheel is provided with a driven gear; the outer side wall of the two rotating adsorption wheels is provided with a plurality of adsorption grooves arranged in an annular array, and one end of the rotating adsorption wheel is provided with a transmission gear, the transmission gear and the driven gear are jointly provided with a driving gear, the center of the two driving gears is provided with a transmission shaft, one end of the transmission shaft is rotatably connected to the side wall of the mounting frame body, the other end of the transmission shaft is provided with a single-groove wheel, the single-groove wheel is drivingly connected to a double-groove wheel through a belt, and the other end of the rotating adsorption wheel is provided with a discharge port.

[0018] The inner cavity of the mounting frame body is provided with a plurality of arc-shaped blocking grooves, and the inner side walls of the arc-shaped blocking grooves are respectively attached to the rotating washing wheel and the rotating adsorption wheel.

[0019] Compared with the prior art, the present application has the following advantages:

[0020] 1. The device uses the staged processing mode of washing first and then adsorbing, uses the lifting movement of the main washing nozzle group to wash away the large-particle impurities attached to the surface of the filter plate, avoids the blockage of the adsorption holes during subsequent adsorption, and removes the fine impurities embedded in the pores of the filter plate through the rotating adsorption wheel and negative pressure adsorption. The rotating washing pipe can realize uniform water spraying through angle switching, and the rotating adsorption wheel can switch the adsorption grooves. Compared with the traditional single flushing mode, the device solves the problem of uneven local cleaning, avoids the problem of small water flow and difficult impurity removal caused by small filter cloth pores during backwashing, shortens the cleaning time, simplifies the cleaning process, and significantly improves the cleaning effect and efficiency of the filter cloth.

[0021] 2. The device realizes the synchronization of the washing and adsorption processes, removes the residual water on the surface of the filter plate while removing the fine impurities by the rotating adsorption wheel, directly eliminates the subsequent water stain cleaning and air drying processes of the filter plate, shortens the overall cleaning and filter plate assembly processes, directly eliminates the subsequent water stain cleaning and air drying processes of the filter plate, shortens the overall cleaning and filter plate assembly processes, and directly eliminates the subsequent water stain cleaning and air drying processes of the filter plate. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description only constitute some embodiments of the present application, and other drawings can also be obtained by those skilled in the art based on these drawings.

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present application.

[0024] Figure 2 It is a schematic diagram of the structure of the connection relationship between the cleaning mechanism and the filter plate of the present application.

[0025] Figure 3 It is a schematic diagram of the structure of the lifting drive assembly and the connecting adjustment assembly of the present application.

[0026] Figure 4 It is a schematic diagram of the structure of the adjustment drive of the present application.

[0027] Figure 5 It is a schematic diagram of the structure of the mounting frame body of the present application.

[0028] Figure 6 It is a schematic diagram of the structure of the cleaning execution assembly of the present application.

[0029] Figure 7 It is a schematic diagram of the structure of the present application Figure 6 enlarged structure at A.

[0030] Figure 8 It is a schematic diagram of the structure of the driving gear of the present application.

[0031] Figure 9 It is a front view schematic diagram of the present application.

[0032] In the figure: 1, filter press body; 11, filter plate; 12, filter drive mechanism; 13, air suction pump; 2, device frame; 3, water pump; 4, cleaning mechanism; 41, lifting drive assembly; 411, lifting drive; 412, lifting frame; 413, positioning block; 414, guide rod; 42, connecting adjustment assembly; 421, adjustment drive; 422, adjustment arm; 423, connecting rod; 424, mounting seat; 425, water delivery pipe; 426, rotary motor; 43, cleaning execution assembly; 431, mounting frame body; 432, rotary flushing wheel; 433, rotary adsorption wheel; 434, main flushing nozzle group; 435, driven gear; 436, transmission gear; 437, driving gear; 438, transmission shaft; 439, sealing bearing; 410, flange mounting port. DETAILED DESCRIPTION

[0033] In order to make the technical personnel in the art better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0034] As Figures 1-9 The present application provides a raw material filtering device for producing pyromellitic dianhydride, which comprises a filter press body 1, a plurality of filter plates 11 arranged at the filter pressing end of the filter press body 1, a filter pressing driving mechanism 12 connected to the side wall of the filter press body 1, and a device frame 2, a water pump 3 is installed at the top end of the device frame 2, and two cleaning mechanisms 4 are arranged in the inner cavity of the device frame 2; the cleaning mechanism 4 comprises a lifting driving assembly 41 installed at the top end of the device frame 2, two connecting adjustment assemblies 42 are arranged at one end of the lifting driving assembly 41, and a cleaning execution assembly 43 is arranged at one end of each of the two connecting adjustment assemblies 42; the cleaning execution assembly 43 comprises a mounting frame body 431, two rotating washing wheels 432 are rotatably arranged in the inner cavity of the mounting frame body 431, one end of each of the two rotating washing wheels 432 is connected with the water pump 3 through a hose, two rotating adsorption wheels 433 are rotatably arranged in the inner cavity of the mounting frame body 431, one end of each of the two rotating adsorption wheels 433 is connected with a suction pump 13 through a pipeline, the suction pump 13 is arranged at the top end of the filter pressing driving mechanism 12, and the rotating adsorption wheel 433 is in transmission connection with the rotating washing wheel 432; by integrating the "washing + adsorption" dual-function cleaning structure and realizing the transmission linkage of the rotating washing wheel 432 and the rotating adsorption wheel 433, a structural basis is provided for subsequent synchronous cleaning operation of the impurities on the surface of the filter plate 11, the tediousness of the traditional single cleaning device is avoided, and the cooperativeness of the cleaning operation is preliminarily improved.

[0035] Further, the lifting driving assembly 41 comprises two lifting drives 411, one end of each of the two lifting drives 411 is connected to the inner cavity top end and the bottom end side wall of the device frame 2, the other end of each of the two lifting drives 411 is connected with a lifting frame 412, a positioning block 413 is arranged on each side of the lifting frame 412, a guide rod 414 is slidably arranged in the center of the positioning block 413, one end of the guide rod 414 is connected to the inner side wall of the water pump 3, and the other end of the guide rod 414 is connected to the two end side walls of the filter press body 1; stable lifting power is provided by the lifting drive 411, and the sliding guide structure of the positioning block 413 and the guide rod 414 is matched, so as to ensure that the lifting frame 412 drives the subsequent cleaning execution assembly 43 to move stably, avoid the problem that the cleaning execution assembly 43 is not cleaned in place due to lifting deviation of the filter plate 11, and improve the comprehensiveness of cleaning coverage.

[0036] Further, the connection adjusting assembly 42 comprises an adjusting driver 421 arranged at the bottom of the lifting frame 412, the bottom of the adjusting driver 421 is provided with two adjusting arms 422, the other end of the adjusting arm 422 is provided with a connecting rod 423, the other end of the connecting rod 423 is provided with a mounting seat 424, the mounting seat 424 is connected to the side wall of the mounting frame body 431, the side wall of the mounting seat 424 is provided with a water supply pipe 425, the inner cavity of the mounting seat 424 is provided with a rotary motor 426, the power output end of the rotary motor 426 is provided with a double-groove wheel; the position of the mounting seat 424 and the cleaning execution assembly 43 can be flexibly adjusted by the adjusting driver 421 driving the adjusting arm 422 and the connecting rod 423, so as to accurately control the adhesion degree of the rotary washing wheel 432, the rotary adsorption wheel 433 and the filter plate 11; at the same time, the water supply pipe 425 provides a stable water path for washing, the rotary motor 426 and the double-groove wheel provide power for the transmission component, and ensure efficient connection of each link of the cleaning operation.

[0037] Further, the bottom end of the mounting frame body 431 is provided with a main washing nozzle group 434, the main washing nozzle group 434 is provided with a plurality of nozzles arranged in an array, the input ends of the plurality of nozzles are in communication with the water supply pipe 425, the other end of the water supply pipe 425 is connected to the water pump 3 through a hose; the array-shaped nozzles cooperate with the pressurized water flow provided by the water pump 3 to uniformly and strongly wash the surface of the filter plate 11, effectively wash away the attached large-particle impurities, and avoid the large particles from blocking the suction groove of the rotary adsorption wheel 433 during subsequent adsorption, compared with the traditional single washing mode, the uniformity and completeness of the preliminary cleaning are improved.

[0038] Further, the rotating washing wheel 432 and the rotating adsorption wheel 433 are both provided with two, the outer side of the two rotating washing wheels 432 is provided with a plurality of washing spray holes, one end of the rotating washing wheel 432 is provided with a driven gear 435; the outer side wall of the two rotating adsorption wheels 433 is provided with a plurality of adsorption grooves arranged in a ring array, one end of the rotating adsorption wheel 433 is provided with a transmission gear 436, the transmission gear 436 and the driven gear 435 are jointly meshed with a driving gear 437, the center of the two driving gears 437 is provided with a transmission shaft 438, one end of the transmission shaft 438 is rotatably connected to the side wall of the mounting frame body 431, the other end of the transmission shaft 438 is provided with a single-groove wheel, the single-groove wheel is drivingly connected with a double-groove wheel through a belt, the other end of the rotating adsorption wheel 433 is provided with a discharge port; the rotating washing wheel 432 can realize multi-angle dynamic washing through the plurality of washing spray holes and its rotation, avoiding the cleaning blind area of the traditional fixed-angle washing; the rotating adsorption wheel 433 can avoid uneven cleaning caused by local adsorption groove blockage through the ring array adsorption groove and rotation switching, and can efficiently adsorb and remove fine stubborn impurities in the pores of the filter plate 11 in cooperation with the negative pressure adsorption of the air suction pump 13; and the washing and adsorption synchronous operation is realized through the driving gear 437, the driven gear 435, the transmission gear 436, and the single-groove wheel and the double-groove wheel transmission, without the need for other cleaning devices for secondary cleaning, solving the problems of long time consumption and incomplete cleaning of the existing backwashing.

[0039] Further, one end of the rotating washing wheel 432 and the rotating adsorption wheel 433 is provided with a sealing bearing 439, the rotating washing wheel 432 and the rotating adsorption wheel 433 are rotatably connected to the side wall of the mounting frame body 431 through the sealing bearing 439, the other end of the sealing bearing 439 is sealingly connected with a flange mounting port 410; the sealing bearing 439 can effectively prevent water leakage of the washing waterway and air leakage of the adsorption air duct, ensure stable washing water pressure and sufficient adsorption negative pressure, and ensure cleaning effect; the flange mounting port 410 facilitates the disassembly and maintenance of the rotating washing wheel 432 and the rotating adsorption wheel 433, reduces the maintenance difficulty of the device, and prolongs the service life of the device.

[0040] Further, one side of the two rotating adsorption wheels 433 is in contact with the surface of the filter plate 11; the rotating adsorption wheel 433 is directly in contact with the surface of the filter plate 11, so that the negative pressure adsorption acts more directly on the surface and pores of the filter plate 11, and can more efficiently adsorb and remove fine impurities embedded in the pores, compared with the existing backwashing water flushing from the inside, avoiding the problem of small water flow and difficult impurity removal due to small filter cloth pores, and improving the cleaning effect of stubborn impurities.

[0041] Further, the inner cavity of the mounting frame body 431 is provided with a plurality of arc-shaped blocking grooves, and the inner side walls of the plurality of arc-shaped blocking grooves are respectively matched with the rotating washing wheel 432 and the rotating adsorption wheel 433; the arc-shaped blocking grooves play a positioning and stabilizing role on the rotating washing wheel 432 and the rotating adsorption wheel 433, which can prevent them from deviating or shaking during high-speed rotation, ensure that the washing spray holes and the material suction grooves always maintain a stable working distance with the filter plate 11, and ensure the stability and consistency of the cleaning effect.

[0042] Working principle:

[0043] Washing of large particles on the surface of the filter plate 11:

[0044] Start the lifting driver 411 to push the lifting frame 412, the connecting and adjusting assembly 42 connected to the lifting frame 412, and the cleaning execution assembly 43 connected to the bottom end to perform synchronous lifting movement, and start the water pump 3 to deliver water flow through the hose to the inner cavity of the water delivery pipe 425, and then to the inner cavity of the main washing nozzle group 434 through the water delivery pipe 425. Through the increase of water pressure and the lifting movement of the main washing nozzle group 434, the filter plate 11 on the surface of the filter plate 11 is washed, and the large particles attached to the surface of the filter plate 11 are removed to prevent the large particles from blocking the adsorption holes during subsequent adsorption of the filter plate 11;

[0045] Adsorption of fine impurities embedded in the pores on the surface of the filter plate 11:

[0046] During the above operation, the rotating motor 426 is started synchronously, the double-groove wheel is driven to rotate through the power output shaft of the rotating motor 426, thereby driving the two single-groove wheels, the transmission shaft 438 and the driving gear 437 connected in transmission with the double-groove wheel to rotate, the driving gear 437 drives the adjacent two driven gears 435 and the transmission gear 436 to rotate, and the adjacent rotating washing wheel 432 and rotating adsorption wheel 433 are driven to rotate through the driven gears 435 and the transmission gear 436. When the rotating washing wheel 432 is washing, the rotating washing wheel 432 can change the water spraying angle continuously through rotation, and the cleaning effect is more uniform compared with the traditional single flushing mode, thereby improving the washing effect.

[0047] Then, the flange mounting port 410 connected with the output end of the suction pump 13 and the rotating adsorption wheel 433 is communicated, the adjusting drive 421 is started, when the two adjusting arms 422 at the bottom end of the adjusting drive 421 are close to each other, the connecting rod 423, the mounting seat 424, the mounting frame body 431 and the rotating adsorption wheel 433 connected with the adjusting arms 422 are driven to close to the filter plate 11, when the rotating adsorption wheel 433 is attached to the filter plate 11, the suction pump 13 is started, and the surface of the filter plate 11 is adsorbed up and down at the same time that the rotating adsorption wheel 433 is attached to the surface of the filter plate 11 and driven to rise and fall by the lifting drive 411, the rotating adsorption wheel 433 is switched to the filter plate 11 surface to adsorb impurities, and the suction groove can better attach to the surface of the filter plate 11 when rolling on the filter membrane surface, and the multiple suction grooves can avoid the situation that the local suction groove is blocked to cause the uneven cleaning of the suction material, and compared with the traditional backwashing method, since the rotating adsorption wheel 433 is directly attached to the surface of the filter plate 11 for adsorption, the cleaning effect is more direct, the particulate matter is removed by the negative pressure generated during adsorption, which is more efficient than increasing the water pressure from the inside, and the cleaning effect is better and the efficiency is higher, at the same time, the filter plate 11 pore blockage is avoided, and the internal high pressure flushing pore impurity cleaning effect is poor.

[0048] The above only describes some exemplary embodiments of the application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the application. Therefore, the above figures and description are illustrative in nature and should not be understood as limiting the scope of the claims of the application.

Claims

1. A raw material filtration device for the production of pyromellitic dianhydride, characterized in that, The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); Lifting drive assembly (41) is installed at the top of device frame (2), one end of lifting drive assembly (41) is equipped with two connection adjustment assembly (42), and the one end of two connection adjustment assembly (42) is equipped with cleaning execution assembly (43); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4); The utility model relates to a filter press, including filter press body (1), a plurality of filter plate (11) of being established at filter press body (1) filter end and be connected on the lateral wall of filter press body (1) filter drive mechanism (12) and device frame (2), the top of device frame (2) is equipped with water pump (3), and the inner chamber of device frame (2) is equipped with two cleaning mechanism (4) A plurality of suction grooves are arranged in annular array on the outer side walls of the two rotating adsorption wheels (433), one end of the rotating adsorption wheel (433) is provided with a transmission gear (436), the transmission gear (436) and the driven gear (435) are jointly meshed with a driving gear (437), the centers of the two driving gears (437) are provided with a transmission shaft (438), one end of the transmission shaft (438) is rotatably connected to the side wall of the mounting frame body (431), the other end of the transmission shaft (438) is provided with a single-groove wheel, the single-groove wheel is drivingly connected with a double-groove wheel through a belt, the other end of the rotating adsorption wheel (433) is provided with a discharge port.

2. The raw material filtering device for producing pyromellitic dianhydride according to claim 1, characterized in that, The lifting drive assembly (41) includes two lifting drives (411), one end of the two lifting drives (411) is respectively connected to the inner cavity top end and the bottom end side wall of the device frame (2), the other end of the two lifting drives (411) is connected with a lifting frame (412), both sides of the lifting frame (412) are provided with a positioning block (413), the center of the positioning block (413) is slidably penetrated by a guide rod (414), one end of the guide rod (414) is connected to the inner side wall of the water pump (3), the other end of the guide rod (414) is connected to the both end side walls of the filter press body (1).

3. The raw material filtering device for producing pyromellitic dianhydride according to claim 1, characterized in that, The rotating washing wheel (432) and the rotating adsorption wheel (433) are provided with a sealing bearing (439) at one end, the rotating washing wheel (432) and the rotating adsorption wheel (433) are rotatably connected to the side wall of the mounting frame body (431) through the sealing bearing (439), the other end of the sealing bearing (439) is sealingly connected with a flange mounting port (410).

4. The raw material filtering device for producing pyromellitic dianhydride according to claim 3, characterized in that, One side of the two rotating adsorption wheels (433) is attached to the surface of the filter plate (11).

5. The raw material filtering device for producing pyromellitic dianhydride according to claim 4, characterized in that, The inner cavity of the mounting frame body (431) is provided with a plurality of arc-shaped blocking grooves, the inner side walls of the plurality of arc-shaped blocking grooves are respectively attached to the rotating washing wheel (432) and the rotating adsorption wheel (433). The inner cavity of the mounting frame body (431) is provided with a plurality of arc-shaped blocking grooves, the inner side walls of the plurality of arc-shaped blocking grooves are respectively attached to the rotating washing wheel (432) and the rotating adsorption wheel (433).

Images