Tetrahydrofuran purification device

Abstract

The utility model relates to the technical field of agricultural machinery, and discloses a tetrahydrofuran purification device which comprises a filter box, a filter plate is slidably connected in the filter box, a sealing assembly is fixedly connected to the top end of the filter box, a feeding hole is fixedly connected in the sealing assembly, and a feeding hole is formed in the feeding hole. Two cavities are formed in the front side of the filter box, two fixing rods are fixedly connected to the interiors of the cavities, limiting discs are fixedly connected to the bottom ends of the fixing rods, sliding plates are slidably connected to the exteriors of the fixing rods, clamping columns are fixedly connected to the bottom ends of the sliding plates, and strong springs sleeve the exteriors of the fixing rods. A pulling plate is fixedly connected to the front side of the sliding plate, so that quick replacement of the filter plate is realized, the downtime of a production line can be reduced, the filter plate can be replaced at any time as required without waiting for the arrival of maintenance personnel or professional technicians, and the operation flexibility is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural machinery technical field especially relates to a tetrahydrofuran purification device. BACKGROUND

[0002] Tetrahydrofuran is a kind of colorless transparent liquid, with special smell, can be miscible with water, and has good solubility to a variety of organic compounds, therefore has extensive application in biochemistry and organic synthesis field, and the tetrahydrofuran after using purification device not only can better serve industrial production and scientific research, but also can reduce environmental pollution and resource waste.

[0003] Through the retrieval, China patent publication No. CN209081776U, the utility model discloses a kind of removal tetrahydrofuran impurity purification dimethyl sulfoxide's device, including outer box, rotary bin, filter layer, storage bin and heating sheet, the outer box bottom one side is equipped with rotary bin, the outer box bottom of rotary bin one side is equipped with storage bin, the outer box both inner side walls on the top of storage bin are welded with supporting plate, the center position of the purification bin bottom is equipped with component detector, the one side of the purification bin bottom is equipped with first output pipe, the one side of the purification bin top is equipped with first liquid inlet pipe, the first liquid inlet pipe, second liquid inlet pipe, first output pipe and second output pipe are installed with electromagnetic valve on the one end close to the purification bin, the outer box inner side wall on the one side of the purification bin is fixed with air compressor, the outer box inner side wall on the top of air compressor is fixed with motor.The utility model not only improves the working efficiency of purification device, facilitates the storage of dimethyl sulfoxide, and avoids environmental pollution.

[0004] Although the specification mentioned in the above patent "under the action of multiple filter layers 3, re-classification, finally precipitate tetrahydrofuran and discharge through output channel 18, avoid tetrahydrofuran directly contact with the outside world to cause toxic substance diffusion, finally complete the whole work of the purification device", but under the long-time use of filter plate, the efficiency of filtration is reduced due to the accumulated impurities, resulting in the decrease of product purity, at this time, the filter plate needs to be replaced, and most of the replacement is to use tools to screw the bolt nut to replace, which not only wastes time and effort, increases downtime, but also reduces the flexibility of operation, therefore, a kind of tetrahydrofuran purification device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art, and provides a tetrahydrofuran purification device, to improve the problems of replacing filter plate in the prior art, which is time-consuming and laborious, increases downtime, and reduces operation flexibility.

[0006] To achieve the above object, the utility model provides the following technical scheme: A tetrahydrofuran purification device, including filter box, the inside of filter box is connected with filter plate in sliding, the top of filter box is fixedly connected with sealing assembly, the inside of sealing assembly is fixedly connected with feed hole, the inside of front side of filter box is equipped with two chambers, the inside of chamber is fixedly connected with two fixed links, the bottom of fixed link is fixedly connected with limit disc, the outside of fixed link is connected with sliding plate in sliding, the bottom of sliding plate is fixedly connected with clamping column, the outside of fixed link is equipped with strong spring, the front side of sliding plate is fixedly connected with pull plate, the right side of filter box is fixedly connected with water pump, the right side of water pump is fixedly connected with water pipe, the right side outside of water pipe is fixedly connected with heating box.

[0007] Further, the top of the heating box is fixedly connected with the air pump, the right end of the air pump is fixedly connected with the transmission pipe, the right end of the transmission pipe is fixedly connected with the condenser, the right side of the condenser is fixedly connected with the delivery pipe, the right end of the heating box is fixedly connected with the support assembly, the inside of the support assembly is fixedly connected with the distillation tank, and the right end of the distillation tank is fixedly connected with the discharge pipe.

[0008] Further, the sealing assembly comprises a sealing cover, the bottom end of the sealing cover is fixedly connected to the top end of the filter box, the bottom end of the sealing cover is fixedly connected with a sealing ring, the outside of the sealing ring is in contact with the inside of the top end of the filter box, and the inside of the sealing cover is fixedly connected to the outside of the feed hole.

[0009] Further, the outside of the sliding plate is connected to the inside of the chamber in sliding, and the inside of the limit disc is connected to the inside of the clamping column in sliding.

[0010] Further, one end of the strong spring is fixedly connected to one side of the inside of the chamber, and the other end of the strong spring is fixedly connected to the top end of the sliding plate.

[0011] Further, the front side of the filter box is provided with two sliding holes, and the outside of the pull plate is connected to the inside of the sliding hole in sliding.

[0012] Further, the outside of the clamping column is clamped with the inside of the top end of the filter plate.

[0013] Further, the support assembly comprises a plurality of support rods, the left side of the plurality of support rods is fixedly connected to the right side of the heating box, the right side of three support rods is fixedly connected with a support ring, and the inside of the support ring is fixedly connected to the outside of the distillation tank.

[0014] The utility model has the following beneficial effects:

[0015] 1. The utility model discloses a fixed rod, limit disc, sliding plate, clamping post, strong spring, pull plate, sliding hole etc. structure's mutual cooperation under, realized the quick replacement of filter plate, and operating personnel can replace filter plate quickly, and do not have to spend too much time, this can reduce the production line downtime, can also replace filter plate according to need at any time, and do not have to wait for the arrival of maintenance personnel or professional and technical personnel, improved the flexibility of operation.

[0016] 2. The utility model discloses a gas pump, transmission pipe, condensing tank, conveying pipe, retort, blanking pipe etc. structure's mutual cooperation under, realized the secondary purification of liquid, can further remove residual impurities and impure substance, thereby improve the purity of tetrahydrofuran. ACCURACY OF DRAWINGS

[0017] Figure 1 It is a perspective view of a tetrahydrofuran purification device according to the utility model;

[0018] Figure 2 It is a filter plate structure schematic view of a tetrahydrofuran purification device according to the utility model;

[0019] Figure 3 It is a filter box structure schematic view of a tetrahydrofuran purification device according to the utility model;

[0020] Figure 4 It is an enlarged view of A in Figure 3

[0021] Figure 5 It is a fixed rod structure schematic view of a tetrahydrofuran purification device according to the utility model.

[0022] LEGEND:

[0023] 1, filter box, 2, filter plate, 3, sealing cover, 4, sealing ring, 5, feed hole, 6, chamber, 7, fixed rod, 8, limit disc, 9, sliding plate, 10, clamping post, 11, strong spring, 12, pull plate, 13, sliding hole, 14, water pump, 15, water pipe, 16, heating box, 17, gas pump, 18, transmission pipe, 19, condensing tank, 20, conveying pipe, 21, support rod, 22, support ring, 23, retort, 24, blanking pipe. DETAILED DESCRIPTION

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

[0025] With reference to Figure 1 and Figure 2 , the utility model provides a kind of embodiment: a tetrahydrofuran purification device, including filter box 1 it is used as main container to carry out the filtration and purification process of tetrahydrofuran, the inside sliding connection of filter box 1 has filter plate 2, filter plate 2 is movable, to clean or replace as required, ensure purification efficiency and product quality, the top end fixed connection of filter box 1 has sealing assembly this component is to prevent tetrahydrofuran leakage in the purification process, and ensure the air tightness and safety of entire system, sealing assembly includes sealing cover 3 provides first sealing defense line for entire purification device, the bottom end fixed connection of sealing cover 3 is in the top end of filter box 1, the bottom end fixed connection of sealing cover 3 has sealing ring 4, further strengthen sealing effect, prevent liquid from escaping in the purification process, the outside of sealing ring 4 and the top end inside of filter box 1 contact, the inside fixed connection of sealing cover 3 is in the outside of feed hole 5, the inside fixed connection of sealing assembly has feed hole 5.

[0026] With reference to Figure 2 , Figure 4 and Figure 5 , the inside of the front side of filter box 1 is provided with two chambers 6 for providing additional movement space and accommodating space, the inside fixed connection of chamber 6 has two fixed rods 7 provides stable, the bottom end fixed connection of fixed rod 7 has limit disc 8 for the movement of fixed rod 7, the outside sliding connection of fixed rod 7 has sliding plate 9, the bottom end fixed connection of sliding plate 9 has engagement column 10, the outside sliding connection of sliding plate 9 is in the inside of chamber 6 this design allows sliding plate 9 to carry out vertical displacement in the inside of chamber 6, the inside sliding connection of limit disc 8 is in the inside of engagement column 10, the outside of engagement column 10 and the top end inside of filter plate 2 are engaged to realize the fixation and unlocking of filter plate 2, to facilitate replacement or cleaning, the outside of fixed rod 7 is equipped with strong spring 11, the function of spring is to provide necessary pressure, help maintain sliding plate 9 and engagement column 10 in correct position, one end fixed connection of strong spring 11 is in the inside one side of chamber 6 to ensure that spring can play its role, the other end fixed connection of strong spring 11 is in the top end of sliding plate 9, the front side fixed connection of sliding plate 9 has pull plate 12, user can manually intervene the up and down movement of sliding plate 9, to control the engagement state between engagement column 10 and filter plate 2, the front side of filter box 1 is provided with two sliding holes 13, the outside sliding connection of pull plate 12 is in the inside of sliding hole 13, pull plate 12 extends out the outside of filter box 1 through these sliding holes 13, provides the space for user to operate pull plate 12.

[0027] With reference to Figure 1 and Figure 3The right side of the filter box 1 is fixedly connected with a water pump 14, which is responsible for conveying the filtered tetrahydrofuran from the filter box to the subsequent processing equipment, the right side of the water pump 14 is fixedly connected with a water pipe 15 for conveying tetrahydrofuran, the right side of the water pipe 15 is fixedly connected with a heating box 16 for heating tetrahydrofuran, the top end of the heating box 16 is fixedly connected with an air pump 17 for sucking gas, the right end of the air pump 17 is fixedly connected with a transmission pipe 18, the right end of the transmission pipe 18 is fixedly connected with a condensation box 19, the heated tetrahydrofuran vapor will be cooled and changed into liquid state, the right side of the condensation box 19 is fixedly connected with a conveying pipe 20 for guiding the condensed tetrahydrofuran out, the right end of the heating box 16 is fixedly connected with a support assembly, the support assembly comprises a plurality of support rods 21, the left side of the plurality of support rods 21 is fixedly connected to the right side of the heating box 16, the right side of the three support rods 21 is fixedly connected with a support ring 22, the inside of the support ring 22 is fixedly connected to the outside of a distillation tank 23, the inside of the support assembly is fixedly connected with the distillation tank 23 to ensure that the distillation tank 23 is safely hung in the appropriate position, the right end of the distillation tank 23 is fixedly connected with a discharge pipe 24, the distillation tank 23 is used for distilling and purifying the heated tetrahydrofuran, the purified tetrahydrofuran can be guided out of the distillation tank 23 through the discharge pipe 24, and the whole purification process is completed.

[0028] Working principle: first, the liquid is input from the feed hole 5 to the inside of the filter box 1, then filtered through the filter plate 2, and then transmitted from the inside of the water pipe 15 to the inside of the heating box 16 through the water pump 14 for heating, then forming mist, the mist will become liquid from the inside of the conveying pipe 20 through the condensation box 19 under the action of the air pump 17, and then conveyed into the distillation tank 23, distilled, and the distilled liquid is discharged from the discharge pipe 24, and then the filter plate 2 is replaced, first pull the pull plate 12, drive the sliding plate 9 to slide in the chamber 6 under the movement of the pull plate 12, then drive the clamping column 10 to move outside the fixed rod 7 under the sliding of the sliding plate 9, separate from the hole of the filter plate 2, realize the disassembly of the filter plate 2, then drive the limiting disc 8 to contract under the movement of the sliding plate 9, and the limiting disc 8 will generate a rebound force under the contraction, and the rebound force provides the force for the subsequent clamping column 10 and the hole in the filter plate 2 to be clamped.

[0029] Finally, it should be pointed out that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included in the protection scope of the present application.

Claims

1. A purification plant of tetrahydrofuran comprising a filtering tank (1), characterized in that: The inside of the filter box (1) is slidably connected with a filter plate (2), the top end of the filter box (1) is fixedly connected with a sealing assembly, the inside of the sealing assembly is fixedly connected with a feeding hole (5), the front side of the filter box (1) is internally provided with two chambers (6), the inside of the chamber (6) is fixedly connected with two fixed rods (7), the bottom end of the fixed rod (7) is fixedly connected with a limiting disc (8), the outside of the fixed rod (7) is slidably connected with a sliding plate (9), the bottom end of the sliding plate (9) is fixedly connected with a clamping column (10), the outside of the fixed rod (7) is sleeved with a strong spring (11), the front side of the sliding plate (9) is fixedly connected with a pulling plate (12), the right side of the filter box (1) is fixedly connected with a water pump (14), the right side of the water pump (14) is fixedly connected with a water pipe (15), the right side of the water pipe (15) is externally fixedly connected with a heating box (16).

2. A purification apparatus for tetrahydrofuran according to claim 1, characterized in that: The top end of the heating box (16) is fixedly connected with an air pump (17), the right end of the air pump (17) is fixedly connected with a transmission pipe (18), the right end of the transmission pipe (18) is fixedly connected with a condensation box (19), the right side of the condensation box (19) is fixedly connected with a conveying pipe (20), the right end of the heating box (16) is fixedly connected with a supporting assembly, the inside of the supporting assembly is fixedly connected with a distillation tank (23), the right end of the distillation tank (23) is fixedly connected with a discharging pipe (24).

3. A purification apparatus for tetrahydrofuran according to claim 1, characterized in that: The sealing assembly comprises a sealing cover (3), the bottom end of the sealing cover (3) is fixedly connected to the top end of the filter box (1), the bottom end of the sealing cover (3) is fixedly connected with a sealing ring (4), the outside of the sealing ring (4) is in contact with the inside of the top end of the filter box (1), and the inside of the sealing cover (3) is fixedly connected to the outside of the feeding hole (5).

4. The purification apparatus of claim 1, wherein: The outside of the sliding plate (9) is slidably connected in the inside of the chamber (6), and the inside of the limiting disc (8) is slidably connected in the inside of the clamping column (10).

5. A purification apparatus for tetrahydrofuran according to claim 1, characterized in that: One end of the strong spring (11) is fixedly connected to one side of the inside of the chamber (6), and the other end of the strong spring (11) is fixedly connected to the top end of the sliding plate (9).

6. A purification apparatus for tetrahydrofuran according to claim 1, characterized in that: The front side of the filter box (1) is provided with two sliding holes (13), and the outside of the pulling plate (12) is slidably connected in the inside of the sliding hole (13).

7. A purification apparatus for tetrahydrofuran according to claim 1, characterized in that: The outside of the clamping column (10) is clamped with the inside of the top end of the filter plate (2).

8. A purification apparatus for tetrahydrofuran according to claim 2, characterized in that: The supporting assembly comprises a plurality of supporting rods (21), the left side of the plurality of supporting rods (21) is fixedly connected to the right side of the heating box (16), the right side of three supporting rods (21) is fixedly connected with a supporting ring (22), and the inside of the supporting ring (22) is fixedly connected to the outside of the distillation tank (23).

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