Phthalic anhydride residue washing device

Abstract

The utility model discloses a phthalic anhydride residue washing device which comprises a residue kettle, a motor is fixedly installed on the top of the residue kettle, a rotating rod is fixedly connected to the bottom end of an output shaft of the motor, a plurality of spray heads arranged at equal intervals are fixedly connected to the outer wall of the rotating rod, and a cavity communicated with the spray heads is formed in the rotating rod. A cleaning pipe is arranged at the bottom of the residue kettle, the bottom end of the rotating rod penetrates through the residue kettle and is movably connected with the cleaning pipe, and a connecting pipe fixedly connected with the residue kettle is arranged on the left side of the cleaning pipe. According to the phthalic anhydride residue washing device, phthalic anhydride residues attached to the inner wall of the residue kettle are flushed to the bottom of the residue kettle through the spray head, the water valve is opened, the flushed phthalic anhydride residues enter the shell through the connecting pipe, liquid flows out through the liquid discharging pipe fixedly connected with the exterior of the shell, and the phthalic anhydride residues are blocked in the shell by the filter screen; after the baffle on the front side of the shell is opened, phthalic anhydride residues in the shell can be taken out, and the phthalic anhydride residues in the residue kettle are completely discharged.

Description

Technical Field

[0001] The utility model belongs to the technical field of residue washing, and particularly relates to a phthalic anhydride residue washing device. Background Art

[0002] Phthalic anhydride, abbreviated as PA, is a cyclic anhydride formed by intramolecular dehydration of phthalic acid. During the extraction of phthalic anhydride, a large amount of phthalic anhydride residue is generated. The residue kettle is used to hold the residue after chemical reaction. The discharging of the traditional residue kettle is rather troublesome. The residue is discharged through the lower opening of the kettle, collected in a bucket, and then pumped. The discharging is rather troublesome, with high labor intensity of workers and low efficiency.

[0003] In view of this, Chinese Patent No. CN210545007U discloses a phthalic anhydride residue kettle device that is convenient for discharging. A discharging mechanism is arranged at the lower end of the discharging port of the phthalic anhydride residue kettle, and discharging is carried out through a spiral blade feeding shaft, improving the slag discharging efficiency. The discharged phthalic anhydride residue can be directly conveyed to the next step through the discharging mechanism.

[0004] However, due to the action of gravity, the phthalic anhydride residue cannot be completely discharged through the lower part of the kettle, and there is still some phthalic anhydride residue adhering to the inner wall of the residue kettle, which needs to be cleaned, becoming a technical problem to be solved urgently. Content of the Utility Model

[0005] The purpose of the utility model is to provide a phthalic anhydride residue washing device to solve the technical problems raised in the background art.

[0006] To achieve the above purpose, the specific technical solution of the utility model is as follows: a phthalic anhydride residue washing device, including a residue kettle, a motor is fixedly installed at the top of the residue kettle, the bottom end of the output shaft of the motor is fixedly connected with a rotating rod, a plurality of spray heads arranged at equal intervals are fixedly connected to the outer wall of the rotating rod, a cavity communicating with the spray heads is opened inside the rotating rod, a cleaning pipe is arranged at the bottom of the residue kettle, the bottom end of the rotating rod penetrates through the residue kettle and is movably connected with the cleaning pipe, and a connecting pipe fixedly connected with the residue kettle is arranged on the left side of the cleaning pipe.

[0007] Preferably, one end of the connecting pipe away from the residue kettle is fixedly connected with a housing, and a filter screen is arranged inside the housing.

[0008] Through the above technical solution, a filter screen is arranged to filter the phthalic anhydride residue.

[0009] Preferably, a liquid discharge pipe fixedly connected with the housing is arranged on the upper side of the filter screen, and a cover plate is detachably installed on the top of the housing.

[0010] Preferably, a baffle is detachably installed on the front side of the housing, and a plurality of annularly arranged support columns are fixedly connected to the bottom of the residue kettle, and the bottom of the support column is fixedly connected to a base.

[0011] Preferably, a water valve is fixedly installed on the outer wall of the connecting pipe, and a water pump is fixedly connected to one end of the cleaning pipe away from the reaction kettle.

[0012] Preferably, an infusion pipe is fixedly connected to one side of the water pump, and a feed pipe is obliquely arranged on the top of the residue kettle, and a sealing plate is detachably installed on the feed pipe.

[0013] Preferably, a limiting ring is fixedly connected to the inside of the residue kettle, and the limiting ring is movably installed outside the rotating rod.

[0014] Through the above technical solution, by setting the limiting ring, the stability of the rotating rod during rotation is enhanced.

[0015] The phthalic anhydride residue washing device of the present invention has the following advantages:

[0016] 1. For this phthalic anhydride residue washing device, the liquid is transferred through a water pump, and the liquid surges into the cavity of the rotating rod from the cleaning pipe. The output shaft of the motor drives the rotating rod to rotate, and the liquid can wash the inner wall of the residue kettle through the spray heads fixedly connected to the rotating rod. By means of rotation for cleaning, the cleaning range and cleaning efficiency are improved.

[0017] 2. For this phthalic anhydride residue washing device, the spray heads wash the phthalic anhydride residue attached to the inner wall of the residue kettle to its bottom. Open the water valve, and the washed phthalic anhydride residue enters the inside of the housing through the connecting pipe. The liquid flows out through the drain pipe fixedly connected to the outside of the housing. The phthalic anhydride residue is blocked inside the housing by the filter screen. After opening the baffle on the front side of the housing, the phthalic anhydride residue inside the housing can be taken out, realizing the complete discharge of the phthalic anhydride residue inside the residue kettle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the embodiments. It should be understood that the following drawings only show some embodiments of the present invention, and therefore should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1 is a schematic three-dimensional structure of the present invention Figure 1 ;

[0020] Figure 2 is a schematic three-dimensional structure of the present invention Figure 2 ;

[0021] Figure 3 is a schematic cross-sectional structure diagram of the present utility model;

[0022] Figure 4 for the present utility model Figure 3 schematic diagram of Structure A;

[0023] Figure 5 for the present utility model Figure 3 schematic diagram of Structure B;

[0024] Marking description in the figure: 1. Residue kettle; 2. Motor; 3. Rotating rod; 4. Nozzle; 5. Cavity; 6. Cleaning pipe; 7. Connecting pipe; 8. Shell; 9. Filter screen; 10. Drain pipe; 11. Cover plate; 12. Baffle; 13. Support column; 14. Base; 15. Water valve; 16. Water pump; 17. Liquid delivery pipe; 18. Feed pipe; 19. Sealing plate; 20. Limiting ring. Detailed implementation manners

[0025] In the following text, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the embodiments of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0026] In the description of the embodiments of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "length", "vertical", "horizontal", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of the present utility model.

[0027] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present utility model, "a plurality" means two or more unless otherwise specifically defined.

[0028] In the embodiments of the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection, an electrical connection, or a communication connection; it may be a direct connection, or an indirect connection through an intermediate medium, and may be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0029] The following disclosure provides many different embodiments or examples for implementing different structures of the embodiments of the present utility model. To simplify the disclosure of the embodiments of the present utility model, the components and settings of specific examples are described below. Of course, they are only examples and are not intended to limit the embodiments of the present utility model. In addition, the embodiments of the present utility model may repeat reference numerals and / or reference letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0030] To better understand the purpose, structure, and function of the present utility model, the following further describes in detail a phthalic anhydride residue washing device of the present utility model with reference to the accompanying drawings.

[0031] As Figures 1-5 shown, a phthalic anhydride residue washing device of the present utility model includes a residue kettle 1. A motor 2 is fixedly installed on the top of the residue kettle 1. The bottom end of the output shaft of the motor 2 is fixedly connected to a rotating rod 3. A plurality of spray heads 4 arranged at equal intervals are fixedly connected to the outer wall of the rotating rod 3. A cavity 5 communicating with the spray heads 4 is formed inside the rotating rod 3. A cleaning pipe 6 is arranged at the bottom of the residue kettle 1. The bottom end of the rotating rod 3 penetrates through the residue kettle 1 and is movably connected to the cleaning pipe 6. A connecting pipe 7 fixedly connected to the residue kettle 1 is arranged on the left side of the cleaning pipe 6.

[0032] One end of the connecting pipe 7 away from the residue kettle 1 is fixedly connected to a housing 8. A filter screen 9 is arranged inside the housing 8. A liquid discharge pipe 10 fixedly connected to the housing 8 is arranged above the filter screen 9. A cover plate 11 is detachably installed on the top of the housing 8. A baffle 12 is detachably installed on the front side of the housing 8. A plurality of annular support columns 13 are fixedly connected to the bottom of the residue kettle 1. The bottom ends of the support columns 13 are fixedly connected to a base 14. The washed phthalic anhydride residue enters the inside of the housing 8 through the connecting pipe 7, and the liquid flows out through the liquid discharge pipe 10 fixedly connected to the outside of the housing 8. The phthalic anhydride residue is blocked inside the housing 8 by the filter screen 9.

[0033] A water valve 15 is fixedly installed on the outer wall of the connecting pipe 7. One end of the cleaning pipe 6 far from the reaction kettle is fixedly connected with a water pump 16. One side of the water pump 16 is fixedly connected with an infusion pipe 17. The liquid is transferred through the water pump 16, and the liquid surges into the cavity 5 of the rotating rod 3 from the cleaning pipe 6. The top of the residue kettle 1 is inclined with a feed pipe 18, and a sealing plate 19 is detachably installed on the feed pipe 18. A limiting ring 20 is fixedly connected inside the residue kettle 1, and the limiting ring 20 is movably installed outside the rotating rod 3.

[0034] The working principle of this phthalic anhydride residue washing device: Connect the infusion pipe 17 of the water pump 16 to the liquid. The liquid is transferred through the water pump 16, and the liquid surges into the cavity 5 of the rotating rod 3 from the cleaning pipe 6. The output shaft of the motor 2 drives the rotating rod 3 to rotate. The liquid washes the inner wall of the residue kettle 1 through the nozzle 4 fixedly connected to the rotating rod 3, flushing the phthalic anhydride residue attached to the inner wall of the residue kettle 1 to its bottom. Open the water valve 15, and the washed phthalic anhydride residue enters the interior of the housing 8 through the connecting pipe 7. The liquid flows out through the drain pipe 10 fixedly connected to the outside of the housing 8. The phthalic anhydride residue is blocked inside the housing 8 by the filter screen 9. After opening the baffle 12 on the front side of the housing 8, the phthalic anhydride residue inside the housing 8 can be taken out.

[0035] It can be understood that the present invention is described through some embodiments. As is known to those skilled in the art, without departing from the spirit and scope of the present invention, various changes or equivalent replacements can be made to these features and embodiments. Additionally, under the teaching of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application belong to the scope protected by the present invention.

Claims

1. A phthalic anhydride residue washing device, comprising a residue kettle (1), characterized in that: A motor (2) is fixedly installed at the top of the residue kettle (1). The bottom end of the output shaft of the motor (2) is fixedly connected to a rotating rod (3). A plurality of spray heads (4) arranged at equal intervals are fixedly connected to the outer wall of the rotating rod (3). A cavity (5) communicating with the spray heads (4) is formed inside the rotating rod (3). A cleaning pipe (6) is arranged at the bottom of the residue kettle (1). The bottom end of the rotating rod (3) penetrates through the residue kettle (1) and is movably connected to the cleaning pipe (6). A connecting pipe (7) fixedly connected to the residue kettle (1) is arranged on the left side of the cleaning pipe (6).

2. The phthalic anhydride residue washing device according to claim 1, wherein: One end of the connecting pipe (7) far away from the residue kettle (1) is fixedly connected to a housing (8). A filter screen (9) is arranged inside the housing (8).

3. The phthalic anhydride residue washing device according to claim 2, characterized in that: A drain pipe (10) fixedly connected to the housing (8) is arranged above the filter screen (9). A cover plate (11) is detachably installed at the top of the housing (8).

4. The phthalic anhydride residue washing device according to claim 3, wherein: A baffle (12) is detachably installed on the front side of the housing (8). A plurality of annular support columns (13) are fixedly connected to the bottom of the residue kettle (1). The bottom of the support column (13) is fixedly connected to a base (14).

5. The phthalic anhydride residue washing device according to claim 1, characterized in that: A water valve (15) is fixedly installed on the outer wall of the connecting pipe (7). One end of the cleaning pipe (6) far away from the reaction kettle is fixedly connected to a water pump (16).

6. The phthalic anhydride residue washing device according to claim 5, wherein: A liquid delivery pipe (17) is fixedly connected to one side of the water pump (16). A feed pipe (18) is inclined at the top of the residue kettle (1), and a sealing plate (19) is detachably installed on the feed pipe (18).

7. A phthalic anhydride residue washing device according to claim 1, characterized in that: A limiting ring (20) is fixedly connected to the inside of the residue kettle (1). The limiting ring (20) is movably installed outside the rotating rod (3).

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