Distributed feeding equipment for producing butadiene extraction polymerization inhibitor

Abstract

The utility model discloses distributed feeding equipment for production of a butadiene extraction polymerization inhibitor, which comprises a gathering runner pipe, a feeding containing pipe coaxial with the gathering runner pipe is arranged in the gathering runner pipe, and a plurality of distributed feeding independent pipes extending parallel to the axis of the feeding containing pipe are fixed in the feeding containing pipe; a dispersing and adding sliding column is arranged in the dispersing and adding independent pipe in a sliding manner, a medicament adding ball is fixed at one end of the dispersing and adding sliding column, and a plurality of medicament adding nozzles are arranged on the medicament adding ball; a plurality of medicament adding balls can be arranged and combined into a plurality of arrays in the flowing direction of the main body so as to adjust the diffusion mixing effect after medicament adding.

Description

Technical Field

[0001] The utility model relates to the technical field of polymerization inhibitor production, in particular to a dispersed dosing device for producing butadiene extraction polymerization inhibitor. Background Art

[0002] Butadiene is the most important component in the C4 fraction. It is one of the basic raw materials for petrochemical industry. Its position in petrochemical olefin raw materials is second only to ethylene and propylene. It is mainly used in the production of synthetic rubber, and is also used in synthetic resins and other organic chemical products. Butadiene is a monomer for the production of a variety of synthetic rubbers, and its consumption accounts for about 60% of the total consumption of synthetic rubber raw materials. It is also an important indicator of the development level of the entire petrochemical industry.

[0003] In the production process of butadiene, it is necessary to add polymerization inhibitors to the raw materials. However, the addition method of the polymerization inhibitor and whether the polymerization inhibitor can be fully mixed with the production raw materials will directly affect the production efficiency and quality of butadiene. However, how to fully mix the polymerization inhibitor with the production raw materials is still lacking in the existing technology. Utility Model Content

[0004] The utility model aims to provide a dispersed dosing device for producing a butadiene extraction inhibitor, which can perform dispersed dosing of the agent more accurately.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A dispersed dosing device for producing a butadiene extraction inhibitor comprises a central circulation pipe, a dosing accommodating pipe coaxial with the central circulation pipe is arranged in the central circulation pipe, and a plurality of dispersed dosing independent pipes extending parallel to the axis of the dosing accommodating pipe are fixed in the dosing accommodating pipe;

[0007] A dispersed dosing sliding column is slidably arranged in the dispersed dosing independent pipe, a medicine dosing ball is fixed at one end of the dispersed dosing sliding column, and a plurality of medicine dosing nozzles are arranged on the medicine dosing ball.

[0008] Preferably, a front dosing mechanism is provided at one end of the dosing accommodating tube, and the front dosing mechanism includes a plurality of front dosing accommodating cylinders fixed on the inner wall of the dosing accommodating tube, a front dosing support column is slidably connected in the front dosing accommodating cylinder, and a plurality of front dosing nozzles are provided on the side of the front dosing support column.

[0009] Description: Use the pre-dosing mechanism to pre-dosing part of the reagent into the raw material, so that the subsequent added reagent can be dispersed and mixed in the main body faster and more evenly.

[0010] Preferably, a lifting drive rod for driving the front-dosing support column to move is provided in the front-dosing accommodating cylinder.

[0011] Description: It is convenient to control the retraction and raising of the front dosing support column to avoid the front dosing support column having a greater impact on the flow resistance.

[0012] Preferably, the dosing and containing pipe is fixedly connected to the inner side wall of the aggregated flow pipe through a plurality of flow guide support plates, the flow guide support plates are arranged extending along the radial plane of the aggregated flow pipe, and the cross section of the flow guide support plates is streamlined;

[0013] One end of the guide support plate is rotatably connected to a guide adjustment support shaft extending radially along the aggregate flow pipe, and the guide adjustment plate is fixed on the guide adjustment support shaft.

[0014] Description: Multiple flow guide adjustment plates guide and constrain the main body of the flow, so that the main body of the flow produces swirl disturbance, which is conducive to more complete mixing of the medicine.

[0015] Preferably, a sliding column driving rod for driving the sliding column of the dispersed dosing is provided in the independent pipe for dispersed dosing.

[0016] Description: The sliding column driving rod is convenient for driving multiple medicine dosing balls to be arranged and combined into various dosing arrays in the main flow direction.

[0017] Compared with the prior art, the beneficial effects of the present invention are embodied in the following aspects:

[0018] 1. The utility model has a reasonable structural design, and uses a pre-adding mechanism to pre-add part of the reagent to the raw material, so that the subsequent added reagent can be dispersed and mixed in the body faster and more evenly;

[0019] 2. The utility model is easy to operate, and multiple reagent dosing balls can be arranged and combined into various arrays in the main flow direction to adjust the diffusion and mixing effect after the reagent is added;

[0020] 3. The utility model utilizes multiple flow guide adjustment plates to guide and constrain the main body of the flow, so that the main body of the flow produces swirl disturbance, which is conducive to more complete mixing of the medicine. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is the front view of the utility model;

[0022] Figure 2 yes Figure 1 Right view of;

[0023] Figure 3 This is a schematic diagram of the structure of the medicine dosing ball of the utility model;

[0024] Figure 4 It is a left view of the front dosing mechanism of the utility model.

[0025] In the figure, 10-collecting circulation pipe, 11-dosing accommodating pipe, 111-guiding hemispherical shell, 112-guiding tail cone shell, 113-dispersed dosing through hole, 114-front dosing through hole, 12-dispersed dosing independent pipe, 121-sliding column driving rod, 13-dispersed dosing sliding column, 131-medicine dosing ball, 132-dosing nozzle accommodating hole, 133-medicine dosing nozzle, 14-front dosing mechanism, 141-front dosing accommodating cylinder, 142-front dosing support column, 143-front dosing accommodating hole, 144-front dosing nozzle, 145-lifting drive rod, 15-guiding support plate, 151-guiding adjustment support shaft, 152-guiding adjustment plate. DETAILED DESCRIPTION

[0026] Combine the following Figure 1-Figure 4 The utility model is described in detail. For the convenience of description, the directions mentioned below are defined as follows: the up, down, left, right, front, and back directions mentioned below are consistent with the up, down, left, right, front, and back directions of the projection relationship of the respective main views or structural schematic diagrams themselves.

[0027] Embodiment 1:

[0028] A distributed dosing device for producing butadiene extraction inhibitor, such as Figure 1 As shown, it includes a collection flow pipe 10, in which a dosing and containing pipe 11 coaxially therewith is arranged, a hemispherical flow guiding hemispherical shell 111 is fixed at one end of the dosing and containing pipe 11, and a conical flow guiding tail cone shell 112 is fixed at the other end of the dosing and containing pipe 11;

[0029] A plurality of independent dispersed dosing pipes 12 extending parallel to the axis of the dosing pipe 11 are fixed in the dosing containment pipe 11, and a plurality of dispersed dosing through holes 113 corresponding to and communicating with the independent dispersed dosing pipes 12 are provided on the guide tail cone shell 112;

[0030] A dispersion dosing sliding column 13 is slidably disposed in the dispersion dosing independent pipe 12, and a medicine dosing ball 131 is fixed to one end of the dispersion dosing sliding column 13 close to the dispersion dosing through hole 113. Figure 3 As shown, the medicine dosing ball 131 has a plurality of dosing nozzle accommodating holes 132 extending in its radial direction, and medicine dosing nozzles 133 are fixed in the dosing nozzle accommodating holes 132 .

[0031] like Figure 1 As shown, a sliding column driving rod 121 for driving the movement of the sliding column 13 for dispersed dosing is provided in the independent pipe 12 for dispersed dosing. The sliding column driving rod 121 is an electrically controlled telescopic rod. The outer rod end of the sliding column driving rod 121 is fixedly connected to the inner end of the independent pipe 12 for dispersed dosing, and the inner rod end of the sliding column driving rod 121 is fixedly connected to the sliding column 13 for dispersed dosing.

[0032] Embodiment 2:

[0033] On the basis of Example 1, Figure 1 As shown, a front dosing mechanism 14 is provided at one end of the dosing and containing pipe 11 close to the guide hemispherical shell 111. Figure 4 As shown, the front-end dosing mechanism 14 includes a plurality of front-end dosing accommodating cylinders 141 fixed on the inner side wall of the dosing accommodating tube 11, the front-end dosing accommodating cylinders 141 are arranged along the radial extension of the dosing accommodating tube 11, the outer side surface of the dosing accommodating tube 11 has a front-end dosing through hole 114 connected to the front-end dosing accommodating cylinder 141, a front-end dosing support column 142 is slidably connected in the front-end dosing accommodating cylinder 141, a plurality of front-end dosing accommodating holes 143 are provided on the side surface of the front-end dosing support column 142, and a front-end dosing nozzle 144 is fixed in the front-end dosing accommodating hole 143.

[0034] like Figure 4 As shown, a lifting drive rod 145 is provided in the front dosing accommodating cylinder 141, and the lifting drive rod 145 is an electrically controlled telescopic rod. The outer rod end of the lifting drive rod 145 is fixedly connected to the inner end of the front dosing accommodating cylinder 141, and the inner rod end of the lifting drive rod 145 is fixedly connected to the front dosing support column 142.

[0035] Embodiment 3:

[0036] On the basis of Example 2, Figure 1 As shown, the dosing and containing pipe 11 is fixedly connected to the inner wall of the aggregated flow pipe 10 through a plurality of guide support plates 15. The guide support plates 15 are arranged along the radial plane of the aggregated flow pipe 10, and the cross section of the guide support plates 15 is streamlined;

[0037] One end of the guide support plate 15 is rotatably connected to a guide adjustment support shaft 151 extending radially along the collecting flow pipe 10 , a guide adjustment plate 152 is fixed on the guide adjustment support shaft 151 , and the guide adjustment support shaft 151 is driven to rotate by a servo motor.

[0038] In the actual application process of the utility model, the raw materials for producing the butadiene extraction polymerization inhibitor flow through the collecting circulation pipe 10, and in this process, the additive is added to the raw materials for producing the butadiene extraction polymerization inhibitor to prepare the polymerization inhibitor;

[0039] Specifically, when the raw materials for producing the butadiene extraction inhibitor flow through the collecting circulation pipe 10, the inner rod of the sliding column driving rod 121 extends to drive the dispersing addition sliding column 13 together with the reagent adding ball 131 to move along the axis direction of the dispersing addition independent pipe 12, so that the reagent adding ball 131 extends from the dispersing addition through hole 113, and by controlling the moving distance of each reagent adding ball 131 along the axis of the dispersing addition independent pipe 12, a plurality of reagent adding balls 131 form a adding array in space;

[0040] The inside of the reagent dosing ball 131 is a hollow structure, and each reagent dosing nozzle 133 is connected to the inside of the reagent dosing ball 131. Additives are input into the inside of the reagent dosing ball 131 through a pipeline, and the additives are output through each reagent dosing nozzle 133 and added to the raw materials for the production of butadiene extraction inhibitor;

[0041] The inner rod of the lifting drive rod 145 extends to drive the front dosing support column 142 to move along the axis of the front dosing accommodating tube 141, so that the front dosing support column 142 extends from the inside of the front dosing accommodating tube 141, and the additive is input to each front dosing nozzle 144 through a pipeline. The additive is then output through each front dosing nozzle 144 and added to the raw material for the production of butadiene extraction inhibitor.

Claims

1. A distributed dosing device for producing butadiene extraction inhibitor, characterized in that: It comprises a collecting circulation pipe (10), wherein a dosing and containing pipe (11) coaxial with the collecting circulation pipe (10) is arranged inside the collecting circulation pipe (10), and a plurality of dispersed dosing independent pipes (12) extending parallel to the axis of the collecting circulation pipe (11) are fixed inside the dosing and containing pipe (11); A dispersed dosing sliding column (13) is slidably disposed in the dispersed dosing independent pipe (12), a medicine dosing ball (131) is fixed to one end of the dispersed dosing sliding column (13), and a plurality of medicine dosing nozzles (133) are provided on the medicine dosing ball (131).

2. The distributed dosing equipment for producing a butadiene extraction inhibitor according to claim 1, characterized in that: A front dosing mechanism (14) is provided at one end of the dosing accommodating tube (11), the front dosing mechanism (14) comprising a plurality of front dosing accommodating tubes (141) fixed on the inner side wall of the dosing accommodating tube (11), a front dosing support column (142) being slidably connected inside the front dosing accommodating tube (141), and a plurality of front dosing nozzles (144) being provided on the side of the front dosing support column (142).

3. The distributed dosing equipment for producing a butadiene extraction inhibitor according to claim 2, characterized in that: A lifting drive rod (145) for driving the front-loading support column (142) to move is arranged in the front-loading containing cylinder (141).

4. The distributed dosing equipment for producing a butadiene extraction inhibitor according to claim 1, characterized in that: The dosing and containing pipe (11) is fixedly connected to the inner wall of the collecting circulation pipe (10) through a plurality of guide support plates (15); the guide support plates (15) are arranged to extend along the radial plane of the collecting circulation pipe (10); and the cross section of the guide support plates (15) is streamlined; One end of the flow guide support plate (15) is rotatably connected to a flow guide adjustment support shaft (151) extending radially along the collecting flow pipe (10), and a flow guide adjustment plate (152) is fixed on the flow guide adjustment support shaft (151).

5. The distributed dosing equipment for producing a butadiene extraction inhibitor according to claim 1, characterized in that: A sliding column driving rod (121) for driving the sliding column (13) for dispersing and adding is arranged in the independent pipe (12) for dispersing and adding.

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