An apparatus for the recovery of phthalic anhydride mixtures by aqueous extraction

Abstract

The utility model belongs to water extraction processing technical field, concretely relates to a device for water extraction processing and recycling phthalic anhydride mixture, including recovery kettle, the lower end fixedly connected with the discharge port of recovery kettle, the upper end fixedly connected with the kettle cover of recovery kettle through a plurality of bolts, the inside fixedly connected with a plurality of lugs of kettle cover, the lower end fixedly connected with a plurality of support legs of recovery kettle, the inside of recovery kettle is provided with processing mechanism, the upper end of kettle cover is provided with filtering mechanism. The utility model discloses through the inside fixed connection purification device of ring cylinder, and the lower end of ring cylinder is limited through the sliding connection of top block and slot, and the upper end of ring cylinder is limited through the connection of hanger rod and lug plate, thereby the convenient installation processing mechanism, also convenient to take out processing mechanism, clean after taking out conveniently, avoid the influence cleaning work.

Description

Technical Field

[0001] This utility model relates to the field of water extraction technology, specifically to a device for water extraction and recovery of phthalic anhydride mixtures. Background Technology

[0002] Phthalic anhydride, also known as phthalic anhydride, is a white, needle-like or scaly crystal. This substance possesses unique physical properties, such as a specific gravity of 1.527 (at 4°C), a melting point of 131.2°C, and the atypical characteristic of sublimation at 295°C. Phthalic anhydride has slightly poor solubility in cold water but is readily soluble in hot water, where it hydrolyzes to phthalic acid. Furthermore, it is soluble in ethanol, benzene, and pyridine, and slightly soluble in diethyl ether. These properties make phthalic anhydride play an important role in a variety of chemical applications.

[0003] Utility model patent CN208320017U discloses a naphthalene evaporation device for phthalic anhydride preparation, including a naphthalene evaporator comprising an upper head, a cylinder, and a lower head. The lower part of the cylinder is connected to the lower part of a naphthalene reboiler via a pipe, and the upper part of the naphthalene reboiler is connected to the upper middle part of the cylinder. The bottom of the naphthalene reboiler is provided with a heavy component discharge port, through which high-pressure steam is introduced to indirectly heat the liquid naphthalene. The bottom of the lower head is also provided with a heavy component discharge port. Angle steel is evenly distributed outside the cylinder, with the upper end of the angle steel connected to a steam inlet channel surrounding the cylinder and the lower end connected to a steam outlet channel surrounding the cylinder. The steam inlet channel, steam outlet channel, angle steel, and cylinder form a sealed steam channel. A demister is installed in the upper part of the cylinder. This utility model adds the use of a naphthalene reboiler and a naphthalene evaporator to heat the liquid naphthalene, increasing the naphthalene production rate, completely converting liquid naphthalene into gaseous naphthalene, achieving good separation effect, and ensuring stable production operation.

[0004] Currently, the treatment and purification devices inside water extraction and recovery devices are mostly fixedly connected to the lower part of the device, making it difficult to clean them from the upper opening. This causes many inconveniences for cleaning. In addition, the filter devices are mostly located inside the water extraction and recovery device, making it difficult to discharge filtered dirt and clean the filter devices at any time. Utility Model Content

[0005] The purpose of this invention is to provide a device for water extraction treatment and recovery of phthalic anhydride mixtures, which solves the problems of installing the treatment and cleaning device and setting up the filtration device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a device for water extraction treatment and recovery of phthalic anhydride mixture, comprising a recovery vessel, a discharge port fixedly connected to the lower end of the recovery vessel, a vessel cover fixedly connected to the upper end of the recovery vessel by multiple bolts, multiple protrusions fixedly connected inside the vessel cover, multiple support legs fixedly connected to the lower end of the recovery vessel, a processing mechanism provided inside the recovery vessel, and a filtration mechanism provided at the upper end of the vessel cover.

[0007] Preferably, the processing mechanism includes a ring cylinder, the inside of the recovery vessel is slidably connected to the ring cylinder, the inside of the ring cylinder is fixedly connected to a purification device, and the lower left and right sides of the ring cylinder are respectively fixedly connected to connecting rods.

[0008] Preferably, the lower end of the connecting rod is fixedly connected to multiple top blocks, the lower end of the inside of the recovery vessel is provided with multiple slots, the top blocks are slidably connected to the inside of the slots, and the upper left and right sides of the ring cylinder are respectively fixedly connected to hanging rods.

[0009] Preferably, the upper end of the boom is fixedly connected to a lug plate, the lug plate is slidably connected to the upper end of the recovery vessel, the protrusion is connected to the upper end of the lug plate, and the boom is slidably connected to the inside of the recovery vessel.

[0010] Preferably, the filtration mechanism includes a filter box, the upper end of the vessel lid is fixedly connected to the filter box, the upper end of the filter box is fixedly connected to an end cap by multiple bolts, the upper end of the end cap is fixedly connected to an inlet, and the lower end of the filter box is fixedly connected to an outlet.

[0011] Preferably, a filter bucket is slidably connected inside the filter box, a reinforcing block is fixedly connected to the lower end of the filter bucket, and the filter bucket is provided with an inclined surface.

[0012] Preferably, a reinforcing rod is fixedly connected to the lower end of the filter bucket, a reinforcing leg is fixedly connected to the lower end of the reinforcing rod, and the lower end of the reinforcing leg is fixedly connected to the lower end of the interior of the filter box.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model uses a ring cylinder to fix the purification device inside, and the lower end of the ring cylinder is limited by a top block slidingly connected to the slot, while the upper end of the ring cylinder is limited by a hanging rod connected to the ear plate. This makes it convenient to install the treatment mechanism, easy to remove the treatment mechanism, and easy to clean after removal, thus avoiding affecting the cleaning work.

[0014] 2. This utility model connects the filter box to the upper end of the vessel lid, and the upper end of the filter box is connected to the end cap. After removing the end cap, it is convenient to remove the filter bucket, which facilitates the cleaning of dirt inside the filter bucket and the sewage discharge. Moreover, the inclined surface facilitates filtration and dirt collection, reduces clogging of the filter bucket mesh, and minimizes the impact on the filtration effect. Attached Figure Description

[0015] Figure 1 This is a perspective view of the overall structure of this utility model; Figure 2 This is a partial sectional view of a part of the structure of this utility model; Figure 3 This is a partial three-dimensional structure of the present invention. Figure 1 ; Figure 4 This is a partial three-dimensional structure of the present invention. Figure 2 .

[0016] In the diagram: 1. Recovery vessel; 2. Discharge port; 3. Vessel lid; 4. Protrusion; 5. Support leg; 6. Processing mechanism; 7. Filtration mechanism; 61. Ring cylinder; 62. Purification device; 63. Connecting rod; 64. Top block; 65. Slot; 66. Hanging rod; 67. Ear plate; 71. Filter box; 72. End cap; 73. Inlet; 74. Outlet; 75. Filter hopper; 76. Reinforcing block; 77. Inclined surface; 78. Reinforcing rod; 79. Reinforcing leg. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4A device for water extraction and recovery of phthalic anhydride mixture includes a recovery vessel 1, a discharge port 2 fixedly connected to the lower end of the recovery vessel 1, a vessel cover 3 fixedly connected to the upper end of the recovery vessel 1 by multiple bolts, multiple protrusions 4 fixedly connected inside the vessel cover 3, the protrusions 4 press down and limit the upper end of the ear plate 67 by setting, multiple support legs 5 fixedly connected to the lower end of the recovery vessel 1, the support legs 5 support and limit the recovery vessel 1 by setting, a processing mechanism 6 is provided inside the recovery vessel 1, the recovery vessel 1 is separated from the vessel cover 3 by setting, which facilitates the opening of the recovery vessel 1 after removing the vessel cover 3, facilitates the cleaning and decontamination of the inside of the recovery vessel 1, and facilitates the removal of the processing mechanism 6, the upper end of the vessel cover 3 is provided with a filter mechanism 7. This technical solution improves the problems raised in the background technology, and other technical problems of this technical solution are existing technologies, which will not be described in detail in this technical solution.

[0019] Please see Figure 1 , Figure 2 , Figure 3 The processing mechanism 6 includes an annular cylinder 61. The annular cylinder 61 is slidably connected inside the recovery vessel 1. A purification device 62 is fixedly connected inside the annular cylinder 61. The purification device 62 is existing technology and is convenient for purifying and treating dirt and harmful elements in the water extract. Connecting rods 63 are fixedly connected to the lower left and right sides of the annular cylinder 61. The connecting rods 63 facilitate the connection of top blocks 64 to the lower end of the annular cylinder 61. Multiple top blocks 64 are fixedly connected to the lower end of the connecting rods 63. Multiple slots 65 are opened at the lower end of the recovery vessel 1. Top blocks 64 are slidably connected to the inside of the slots 65. Hanging rods 66 are fixedly connected to the upper left and right sides of the annular cylinder 61. Ear plates 67 are fixedly connected to the upper end of the hanging rods 66. Ear plates 67 are slidably connected to the upper end of the recovery vessel 1. Protrusions 4 are connected to the upper end of ear plates 67. Hanging rods 66 are slidably connected to the inside of the recovery vessel 1.

[0020] Please see Figure 1 , Figure 2 , Figure 4The filtration mechanism 7 includes a filter box 71. The filter box 71 is fixedly connected to the upper end of the vessel lid 3. An end cap 72 is fixedly connected to the upper end of the filter box 71 by multiple bolts. An inlet 73 is fixedly connected to the upper end of the end cap 72. An outlet 74 is fixedly connected to the lower end of the filter box 71. A filter bucket 75 is slidably connected inside the filter box 71. The upper end of the filter bucket 75 is reinforced by a reinforcing block 76 to prevent water from impacting and damaging the filter bucket 75. A reinforcing block 76 is fixedly connected to the lower end of filter 75. Filter 75 is provided with an inclined surface 77. The inclined surface 77 facilitates the discharge and transportation of water, allowing dirt to be collected at the lower edge of the filter 75. A reinforcing rod 78 is fixedly connected to the lower end of filter 75. A reinforcing leg 79 is fixedly connected to the lower end of the reinforcing rod 78. The reinforcing rod 78 and the reinforcing leg 79 support and limit the reinforcing block 76. The lower end of the reinforcing leg 79 is fixedly connected to the lower end of the filter box 71.

[0021] The specific implementation process of this utility model is as follows: the processing mechanism 6 can be removed by removing the lid 3. After removing the processing mechanism 6, the processing mechanism 6 can be cleaned to avoid being fixedly connected to the inside of the recycling kettle 1 and affecting the cleaning work. The ring cylinder 61 is limited by the lifting rod 66. The upper end of the lifting rod 66 can limit the ear plate 67 by pressing down the ear plate 67 through the protrusion 4, which facilitates the installation of the processing mechanism 6 and also facilitates the removal of the processing mechanism 6. The water extract moves to the inlet 73, then through the inside of the inlet 73 to the upper end of the reinforcing block 76, and then slides down into the filter hopper 75. It is filtered through the filter hopper 75, and the dirt falls down along the lower edge of the filter hopper 75 to be collected, thus avoiding clogging and affecting the filtration effect of the filter hopper 75. The filtered water extract then moves through the outlet 74 to the inside of the recovery tank 1, where it is processed by the processing mechanism 6.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An apparatus for water extraction treatment and recovery of phthalic anhydride mixtures, comprising a recovery vessel (1), characterized in that: The lower end of the recycling vessel (1) is fixedly connected to a discharge port (2), the upper end of the recycling vessel (1) is fixedly connected to a vessel cover (3) by multiple bolts, the inside of the vessel cover (3) is fixedly connected to multiple protrusions (4), the lower end of the recycling vessel (1) is fixedly connected to multiple support legs (5), the inside of the recycling vessel (1) is provided with a processing mechanism (6), and the upper end of the vessel cover (3) is provided with a filtration mechanism (7).

2. The apparatus for water extraction and recovery of phthalic anhydride mixtures according to claim 1, characterized in that: The processing mechanism (6) includes a ring cylinder (61), the ring cylinder (61) is slidably connected inside the recovery vessel (1), a purification device (62) is fixedly connected inside the ring cylinder (61), and connecting rods (63) are fixedly connected to the left and right sides of the lower end of the ring cylinder (61).

3. The apparatus for water extraction and recovery of phthalic anhydride mixtures according to claim 2, characterized in that: The lower end of the connecting rod (63) is fixedly connected to multiple top blocks (64), and the lower end of the inside of the recovery vessel (1) is provided with multiple slots (65). The top blocks (64) are slidably connected to the inside of the slots (65), and the upper left and right sides of the ring cylinder (61) are respectively fixedly connected to the lifting rods (66).

4. The apparatus for water extraction treatment and recovery of phthalic anhydride mixtures according to claim 3, characterized in that: The upper end of the boom (66) is fixedly connected to the ear plate (67), the ear plate (67) is slidably connected to the upper end of the recovery vessel (1), the protrusion (4) is connected to the upper end of the ear plate (67), and the boom (66) is slidably connected to the inside of the recovery vessel (1).

5. The apparatus for water extraction and recovery of phthalic anhydride mixtures according to claim 1, characterized in that: The filtration mechanism (7) includes a filter box (71), the upper end of the lid (3) is fixedly connected to the filter box (71), the upper end of the filter box (71) is fixedly connected to an end cap (72) by multiple bolts, the upper end of the end cap (72) is fixedly connected to an inlet (73), and the lower end of the filter box (71) is fixedly connected to an outlet (74).

6. The apparatus for water extraction and recovery of phthalic anhydride mixtures according to claim 5, characterized in that: The filter box (71) is slidably connected to a filter bucket (75), and a reinforcing block (76) is fixedly connected to the lower end of the filter bucket (75). The filter bucket (75) is provided with an inclined surface (77).

7. The apparatus for water extraction and recovery of phthalic anhydride mixtures according to claim 6, characterized in that: The lower end of the filter bucket (75) is fixedly connected to a reinforcing rod (78), the lower end of the reinforcing rod (78) is fixedly connected to a reinforcing leg (79), and the lower end of the reinforcing leg (79) is fixedly connected to the lower end of the interior of the filter box (71).

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