A phosphite triester filter press mechanism and method of use thereof

Abstract

The application discloses a triphenyl phosphite filter press mechanism and a use method thereof, which comprises a filter press body and filter plates capable of filtering impurities generated in triphenyl phosphite production and arranged in a linear array at a filtering end of the filter press body; an air drying machine capable of drying the impurities between the filter plates is arranged at a gas conveying end of the filter press body; and a dispersion mechanism capable of dispersing the filter plates at equal intervals is further arranged; the dispersion mechanism comprises a plurality of shear-shaped rods connected in sequence; an unfolding plate capable of pushing the filter plates is arranged at the intersection position of two adjacent shear-shaped rods; a pushing mechanism capable of pushing the unfolding plate to insert into the gap between two adjacent filter plates is arranged at a pushing end of the filter press body; and in use, the traditional method of removing the impurities from the filter plates one by one is abandoned, and all the filter plates are separated at the same time, so that the efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The application relates to a triphenyl phosphite filter press mechanism and a use method thereof. BACKGROUND

[0002] Triphenyl phosphite is a colorless to slightly yellow transparent liquid, slightly phenolic odor, insoluble in water, easy to hydrolyze into free phenol in moisture, soluble in alcohol, ether, benzene and acetone and other organic solvents, and has ultraviolet absorption.

[0003] At present, triphenyl phosphite is generally produced by esterification, acid discharge and distillation process. The distillation process is to purify the triphenyl phosphite. However, high temperature is required for the distillation, and the triphenyl phosphite is easy to coking, energy consumption, long working hours, and large consumption. In addition, improper operation will produce defective products.

[0004] Patent CN105709473B discloses a composite tension type filter press. The composite tension type filter press comprises a rack, a filter unit, a compression plate, a moving top compression device and a tension device. The rack is composed of a thrust plate, two top beams, two bottom beams and an end support. The rack is a frame structure rack composed of the thrust plate, the two top beams, the two bottom beams and the end support. The filter unit, the compression plate and the moving top compression device are arranged on the two top beams on the two sides of the thrust plate in sequence. The moving top compression device is composed of a top compression support and a top compression hydraulic cylinder. The tension device is composed of two or four tension hydraulic cylinders. The filter unit is compressed by combining tension and top compression. The problems of heavy weight of the whole machine, high operating pressure of the hydraulic system and poor reliability caused by inherent defects in the structure design of traditional compression type and tension type filter presses are solved.

[0005] The above-mentioned composite tension type filter press uses a single moving head to move each filter plate for deslagging treatment, which is low in efficiency. Therefore, a filter press mechanism capable of moving all filter plates for deslagging treatment is urgently needed. SUMMARY

[0006] The application aims to provide a triphenyl phosphite filter press mechanism and a use method thereof to solve the problems in the background art.

[0007] To solve the above technical problems, the application provides the following technical scheme: a filter press body and a filter plate capable of filtering impurities generated during the production of triphenyl phosphite and arranged in a linear array at the filtering end of the filter press body, an air dryer capable of drying the impurities between the filter plates is arranged at the gas delivery end of the filter press body, and a dispersion mechanism capable of dispersing the filter plates equally is further included.

[0008] The dispersion mechanism comprises a plurality of shear-shaped rods connected in sequence, and two adjacent shear-shaped rods are provided with an unfolding plate capable of pushing the filter plate.

[0009] The pushing end of the filter press body is provided with a pushing mechanism capable of pushing the unfolding plate to insert into the gap between two adjacent filter plates.

[0010] Preferably, the top surface of the filter press body is provided with an upper supporting plate, the pushing mechanism comprises a transmission bin symmetrically arranged on the top surface of the upper supporting plate, the inner bottom surface of the transmission bin is linearly arranged with a plurality of threaded rods, and the bottom end of the threaded rod is provided with a push plate.

[0011] Preferably, the inner center of the transmission bin is provided with a double-layer gear, the inner center of the transmission bin is symmetrically arranged with a driven gear, the double-layer gear is connected with the driven gear through a chain, and the three threaded rods are arranged on the driven gear and the double-layer gear.

[0012] Preferably, the top surface of the upper supporting plate is provided with a motor, and the double-layer gears are connected with the motor transmission end through a chain; starting the motor, the motor drives the two double-layer gears to rotate in the same direction through the chain.

[0013] Preferably, the bottom surface of the push plate is provided with an unfolding bin, the shear-shaped rod is arranged in the unfolding bin, the intersection position of two adjacent shear-shaped rods is provided with a vibration bin, and the unfolding plate is arranged on the vibration bin; when the shear-shaped rod is pulled, the two rods will rotate, thereby driving the vibration bin on the surface to move.

[0014] Preferably, the vibration bin is provided with an eccentric vibration motor; the vibration generated by the eccentric vibration motor is used to assist the falling of impurities.

[0015] Preferably, the end of the bottom surface of the upper supporting plate away from the unfolding bin is provided with an electric push rod, and the shear-shaped rod close to the electric push rod is arranged on the electric push rod; the electric push rod is used to drive the shear-shaped rod to extend or contract.

[0016] Preferably, the side surface of the filter press body is provided with a hydraulic rod, the power output end of the hydraulic rod is provided with a pressing plate, the front and rear surfaces of the filter press body are both provided with a guide rod, the front and rear surfaces of the filter plate are both provided with a sliding ear, and the sliding ear is arranged on the guide rod; the hydraulic rod is used to push the pressing plate to generate extrusion on the filter plate, the sliding ear is arranged on the guide rod, and the guide rod is used to guide the sliding ear, thereby limiting the movement path of the filter plate.

[0017] Preferably, the rear surface of the filter plate is provided with a water outlet close to the bottom end, and the rear surface of the filter press body is provided with a water collecting tank; the water outlet is used to collect the liquid filtered by a single filter plate, and the water collecting tank is used to collect all the filtered liquid.

[0018] Compared with the prior art, the present application has the beneficial effects of:

[0019] 1. The whole body discards the traditional single filter plate separation method for removing impurities, and adopts simultaneous separation of all filter plates, greatly improving the efficiency.

[0020] 2. The whole body discards the traditional triphenyl phosphite production method relying on evaporation filtration, and adopts a pressure filtration method, greatly increasing the efficiency and reducing the probability of producing defective products due to control errors. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic diagram of the overall structure of the embodiment of the present application;

[0022] Figure 2 is a schematic diagram of the cross-sectional structure of the embodiment of the present application;

[0023] Figure 3 is a schematic diagram of the cross-sectional side view structure of the embodiment of the present application;

[0024] Figure 4 is a schematic diagram of the internal structure of the transmission bin of the embodiment of the present application;

[0025] Figure 5 is a schematic diagram of the internal structure of the expansion bin of the embodiment of the present application;

[0026] Figure 6 is a schematic diagram of the internal structure of the vibration bin of the embodiment of the present application.

[0027] In the figure: 1, filter press body; 2, upper supporting plate; 301, transmission bin; 302, motor; 303, driven gear; 304, double-layer gear; 305, threaded rod; 4, guide rod; 5, filter plate; 6, sliding ear; 7, hydraulic rod; 8, extrusion plate; 9, air dryer; 1001, electric push rod; 1002, expansion bin; 1003, expansion plate; 1004, shear-shaped rod; 1005, vibration bin; 1006, eccentric vibration motor; 11, push plate; 12, water outlet; 13, water collecting tank. DETAILED DESCRIPTION

[0028] In order to solve the problem of low filtering efficiency of existing triphenyl phosphite and improper operation which can easily reduce the quality of finished products, the application provides a triphenyl phosphite filter press mechanism and a using method thereof. The technical solutions in the application will be described clearly and completely in combination with the drawings in the application. Obviously, the described application is only a part of the application, not the whole application. Based on the application, all other applications obtained by those skilled in the art without creative labor belong to the protection scope of the application.

[0029] Please refer to Figures 1-6 The application provides a triphenyl phosphite filter press mechanism, which comprises a filter press body 1 and filter plates 5 arranged in a linear array at a filtering end of the filter press body 1 and capable of filtering impurities generated in the production of triphenyl phosphite, and the air drying machine 9 arranged at the air inlet end of the filter press body 1 and capable of drying the impurities between the filter plates 5, and further comprises a dispersion mechanism capable of dispersing the filter plates 5 at equal intervals.

[0030] The dispersion mechanism comprises a plurality of shear-shaped rods 1004 connected in sequence, and the intersection position of two adjacent shear-shaped rods 1004 is provided with an unfolding plate 1003 capable of pushing the filter plates 5.

[0031] The pushing end of the filter press body 1 is provided with a pushing mechanism capable of pushing the unfolding plate 1003 to insert into the gap between two adjacent filter plates 5.

[0032] Further, the top surface of the filter press body 1 is provided with an upper supporting plate 2, the pushing mechanism comprises a transmission bin 301 symmetrically arranged on the top surface of the upper supporting plate 2, a plurality of threaded rods 305 are arranged in a linear array on the inner bottom surface of the two transmission bins 301, and the bottom end of the threaded rod 305 is provided with a push plate 11; the push plate 11 is moved up and down by the up-and-down movement of the threaded rod 305.

[0033] Further, the double-layer gear 304 is arranged at the central position in the two transmission bins 301, the driven gears 303 are symmetrically arranged on the double-layer gear 304 in the two transmission bins 301, the double-layer gear 304 is connected with the driven gears 303 through a chain close to the bottom layer gear of the transmission bin 301, and the three threaded rods 305 are arranged on the driven gears 303 and the double-layer gear 304 respectively; the double-layer gear 304 is rotated to synchronously drive the two driven gears 303 to rotate through the chain, and the threaded rod 305 is moved up and down by the thread when the double-layer gear 304 and the driven gear 303 rotate.

[0034] Further, the motor 302 is arranged on the top surface of the upper supporting plate 2, and the double-layer gears 304 are connected with the transmission end of the motor 302 through a chain close to the top layer gear in the inner top surface of the transmission bin 301.

[0035] Further, the bottom surface of the push plate 11 is provided with an unfolding bin 1002, the shear-shaped rods 1004 are arranged in the unfolding bin 1002, the two shear-shaped rods 1004 are arranged at the intersection position of the adjacent ends, and the vibration bin 1005 is arranged on the unfolding plate 1003.

[0036] Further, the eccentric vibration motor 1006 is arranged in the bin body of the vibration bin 1005.

[0037] Further, the electric push rod 1001 is arranged on the bottom surface of the upper supporting plate 2 away from the unfolding bin 1002, and the shear-shaped rods 1004 are arranged on the electric push rod 1001 close to the side of the electric push rod 1001.

[0038] Further, the hydraulic rod 7 is arranged on the side surface of the filter press body 1, the power output end of the hydraulic rod 7 is provided with the extrusion plate 8, the guide rod 4 is arranged on the front and rear surfaces of the filter press body 1, and the sliding ear 6 is arranged on the front and rear surfaces of the filter plate 5.

[0039] Further, the water outlet 12 is arranged on the rear surface of the filter plate 5 close to the bottom end position, and the water collecting tank 13 is arranged on the rear surface of the filter press body 1.

[0040] A use method of a triphenyl phosphite filter press mechanism, comprising the following steps:

[0041] Step A, installation: connecting the feed pipe with the feed inlet on the filter press body 1, and connecting the water collecting tank 13 with the external storage device;

[0042] Step B, sealing and feeding: starting the hydraulic rod 7 to drive the extrusion plate 8 to extrude all the filter plates 5, so that all the filter plates 5 are adhered together to form a sealing structure, and feeding into the filter plate 5 through the feed inlet until the feeding is completed;

[0043] Step C, filter pressing: opening the water outlet 12, and starting the hydraulic rod 7 again to extrude the filter plate 5 again, filtering the solid impurities through the filter plate 5, and collecting the filtrate discharged from the water outlet 12 into the water collecting tank 13;

[0044] Step D, drying: the air dryer 9 blows high-temperature gas into the air inlet to dry the internal impurities;

[0045] Step E, impurity removal: reverse start hydraulic rod 7, let it drive the extrusion plate 8 off the surface of the filter plate 5, start the motor 302, the motor 302 by means of chain driven two double gear 304 co-rotating, and double gear 304 lower gear by means of chain driven driven gear 303 rotation, and under the action of the screw thread driven screw rod 305 to move downward, thereby driving the expansion plate 1003 inserted between the two sliding ears 6, start the electric push rod 1001, electric push rod 1001 pull the shear bar 1004, let the shear bar 1004 rotation, and drive its surface vibration bin 1005 and expansion plate 1003 move, thereby separating the filter plate 5 together, start eccentric vibration motor 1006, by means of vibration to remove the dried impurities, after inspection can be carried out next time filtering.

[0046] The triphenyl phosphite filter press mechanism and the use method thereof have the following advantages:

[0047] 1. The whole in use, discard the traditional single single filter plate 5 separate removal of impurities method, but is used to separate all filter plate 5, greatly improve the efficiency;

[0048] 2. The whole discards the traditional triphenyl phosphite production by evaporation filtration method, but is used to filter method, greatly increase the efficiency, and reduce the because of control error caused by coking, finally produce the probability of defective products.

[0049] Although the application has been shown and described, it is to be understood that various modifications, substitutions, alternatives and variations can be made to these applications by those skilled in the art without departing from the principles and spirit of the application, the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A triphenyl phosphite filter press mechanism, comprising a filter press body (1) and filter plates (5) arranged in a linear array at the filter end of the filter press body (1) for filtering impurities generated during the production of triphenyl phosphite, wherein the air supply end of the filter press body (1) is provided with an air dryer (9) for drying impurities between the filter plates (5), characterized in that: It also includes a dispersion mechanism that can disperse the filter plates (5) at equal intervals; The dispersing mechanism includes a plurality of scissor rods (1004) connected end to end in sequence, and an unfolding plate (1003) capable of pushing the filter plate (5) is provided at the intersection of two adjacent scissor rods (1004). The filter press body (1) is provided with a pushing mechanism at the pushing end that can push the unfolding plate (1003) into the gap between two adjacent filter plates (5); The filter press body (1) is provided with an upper support plate (2) on its top surface. The pushing mechanism includes a transmission chamber (301) symmetrically arranged on the top surface of the upper support plate (2). The bottom surfaces of the two transmission chambers (301) are arranged in a linear array with multiple threaded rods (305). The bottom end of the threaded rods (305) is provided with a push plate (11). A double-layer gear (304) is provided at the center of the two transmission chambers (301). A driven gear (303) is symmetrically arranged inside the two transmission chambers (301) about the axis of symmetry of the double-layer gear (304). The double-layer gear (304) is connected to the driven gear (303) near the bottom layer gear of the transmission chamber (301) by a chain. Three threaded rods (305) are respectively provided on the driven gear (303) and the double-layer gear (304). The push plate (11) moves up and down by means of the threaded rods (305). The upper support plate (2) is equipped with a motor (302) on its top surface. The two double-layer gears (304) are connected to the transmission end of the motor (302) via a chain to the top layer gears inside the transmission compartment (301). The bottom surface of the push plate (11) is provided with an unfolding chamber (1002), the scissor rod (1004) is disposed in the unfolding chamber (1002), and a vibration chamber (1005) is disposed at the intersection of two adjacent scissor rods (1004). The unfolding plate (1003) is disposed on the vibration chamber (1005). An electric push rod (1001) is provided on the bottom surface of the upper support plate (2) away from the unfolding chamber (1002), and the scissor rod (1004) is provided on the electric push rod (1001) on the side close to the electric push rod (1001).

2. The triphenyl phosphite pressure filtration mechanism according to claim 1, characterized in that: An eccentric vibration motor (1006) is installed inside the vibration chamber (1005).

3. The triphenyl phosphite pressure filtration mechanism according to claim 1, characterized in that: The filter press body (1) is provided with a hydraulic rod (7) on its side. The hydraulic rod (7) is provided with a pressing plate (8) at its power output end. The filter press body (1) is provided with guide rods (4) on both the front and rear sides. The filter plate (5) is provided with sliding ears (6) on both the front and rear sides. The sliding ears (6) are located on the guide rods (4).

4. The triphenyl phosphite pressure filtration mechanism according to claim 1, characterized in that: A water outlet (12) is provided at the bottom of the filter plate (5), and a water collection tank (13) is provided at the rear of the filter press body (1).

5. A method of using a triphenyl phosphite pressure filter according to any one of claims 1-4, characterized in that: Includes the following steps: Step (A), Installation: Connect the feed pipe to the feed port on the filter press body (1), and connect the water collection tank (13) to the external storage device; Step (B), Sealing and feeding: Start the hydraulic rod (7) to drive the extrusion plate (8) to extrude all the filter plates (5) together, forming a sealed structure under the extrusion. Feed the filter plates (5) into the feed port until the feeding is completed. Step (C), Filtration: Open the outlet (12), start the hydraulic rod (7) again, and squeeze the filter plate (5) again. The solid impurities are filtered by the filter plate (5), and the filtrate is discharged into the collection tank (13) through the outlet (12) and collected. Step (D), Drying: The air dryer (9) blows high-temperature gas into the air inlet to dry the internal impurities; Step (E), Impurity Removal: Reverse start the hydraulic rod (7) to drive the extrusion plate (8) away from the surface of the filter plate (5), start the motor (302), the motor (302) drives the two double-layer gears (304) to rotate in the same direction by means of the chain, and then the lower gear of the double-layer gear (304) drives the driven gear (303) to rotate by means of the chain, and then the threaded rod (305) moves downward under the action of the thread, thereby driving the unfolding plate (1003) to insert between the two connected sliding ears (6), start the electric push rod (1001), the electric push rod (1001) pulls the scissor rod (1004) to rotate, thereby driving the vibration chamber (1005) and unfolding plate (1003) on its surface to move, thereby separating the filter plate (5) that is stuck together, start the eccentric vibration motor (1006), and remove the dried impurities by means of vibration. After inspection, the next filtration can be carried out.

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