A structure for preventing the bottom of a container from sinking

Abstract

The utility model discloses a kind of anti-container bottom settlement structures, belong to chemical equipment technical field, it includes anti-settling pipe fitting, disturbance gas source assembly and tank with agitator, solvent, catalyst interface is passed into on tank upper portion, anti-settling pipe fitting contains flange and steel pipe, steel pipe inserts tank bottom center and with agitator paddle clearance, by flange is connected to tank bottom;Disturbance gas source assembly contains disturbance gas source pipeline, tank bottom at least has two gas source inlets close to steel pipe and tank bottom connecting place, steel pipe outer diameter and flange inner diameter of connection pipe are same, disturbance gas source pipeline can be connected nitrogen gas pipeline, hydrogen pipeline or steam pipeline for lifting, tank is used to contain medium containing easily settled metal particle, centrifugal force is generated by agitator rotation and take particle to tank wall, this structure can effectively prevent solid particle from settling in tank bottom, avoid its into subsequent system damage equipment, simple structure, widely used.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, specifically to a structure for preventing the settling of solid particles at the bottom of a container, and is particularly suitable for containers containing media that can precipitate particles, such as catalyst preparation tanks and other chemical containers. Background Technology

[0002] In chemical production, especially in 1-octene production units related to high-performance polyethylene production, the catalyst A injection system suffers from the problem of low solubility of the active component of catalyst A, leading to the precipitation of metal particles. These metal particles can enter the pump through the inlet filter of the injection pump, causing failure of the check valve in the diaphragm metering pump, wear of the check valve assembly, and wear of the pump diaphragm, ultimately resulting in insufficient pump output and a significant reduction in service life. Simultaneously, the existing bottom discharge structure of the container easily creates a "dead zone," allowing solid particles to settle over a long period and enter subsequent systems, causing equipment damage. Utility Model Content

[0003] The present invention aims to provide a structure to prevent sedimentation at the bottom of containers, thereby solving the problem of damage to subsequent equipment and short service life caused by the sedimentation of solid particles at the bottom of existing containers, while achieving the goals of simple structure, easy modification and convenient operation.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] This utility model discloses a structure for preventing bottom settling of a container, characterized in that it includes an anti-settling pipe fitting and a disturbance gas source assembly, as well as a tank with a stirrer. The upper part of the tank is connected to an interface for introducing solvents and catalysts. The anti-settling pipe fitting includes a flange and a steel pipe for introducing materials. The steel pipe is inserted into the tank at the center of the bottom of the tank and leaves a gap with the blades of the stirrer. The steel pipe is connected to the bottom of the tank through the flange. The disturbance gas source assembly includes a disturbance gas source pipe. A gas source inlet is provided near the connection between the steel pipe and the bottom of the tank. The gas source inlet is connected to the disturbance gas source pipe. At least two gas source inlets are provided on the bottom of the tank.

[0006] Preferably, the outer diameter of the steel pipe is the same as the inner diameter of the flange connector.

[0007] Preferably, the disturbance gas source pipeline is connected to a nitrogen pipeline, a hydrogen pipeline, or a booster steam pipeline, and the disturbance gas source is introduced into the tank through the gas source inlet, so that the inserted steel pipe and the dead zone at the bottom of the tank form a disturbance zone.

[0008] Preferably, the tank is used to contain a medium containing easily settling metal particles.

[0009] Preferably, the agitator generates centrifugal force when rotating, which can carry the particles to the tank wall.

[0010] Beneficial Effects: This utility model's anti-settling structure at the bottom of the container mitigates damage to the system caused by the precipitation of easily settling solids in the material. Under the combined effects of fluid dynamics and gravity, solid particles accumulate at the bottom of the insertion tube and tank, preventing them from entering the pipeline. The centrifugal force generated by the rotating agitator carries metal particles to the tank wall, further reducing solid particles in the center and resulting in clearer discharged material. This structure is simple, easy to modify, and convenient to operate. It is suitable for all media containing precipitable particles. Through continuous stirring and thorough contact, the solute can be completely dissolved in the solvent, and the material can be uniformly dispersed in the suspension. Its application prospects are broad. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the anti-settlement pipe fitting structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the tank structure of this utility model. Detailed Implementation

[0013] 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.

[0014] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0015] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0016] Technical solution / principle:

[0017] The insert-type discharge anti-settlement pipe fitting is designed with flanges and pipes. When metal micro-leaks precipitate from the catalyst, the metal particles will continuously sink due to gravity, reaching the bottom of the tank. Because steel pipe 1 is inserted to a certain height from the bottom, the metal particles will accumulate at the bottom of steel pipe 1 rather than entering steel pipe 1. Furthermore, due to the centrifugal force generated by the rotating agitator, the metal particles will be carried to the tank wall and fall along it. The number of metal particles in the center of the tank is relatively much smaller, thus clarifying the discharged catalyst and greatly reducing the amount of metal particles in the catalyst. When the metal particles settle to a certain height and submerge steel pipe 1, the anti-settlement pipe fitting will soon fail. Furthermore, this could cause a larger amount of metal particles to enter steel pipe 1, leading to more serious consequences. At this time, the role of the disturbance gas source is particularly significant. When a certain liquid level is established in the tank and the agitator is started, the disturbance gas source is started at the same time, so that the "dead zone" between steel pipe 1 and the bottom of the tank forms a disturbance zone. This greatly reduces the settling of metal particles. To improve the disturbance effect, the inlet of the disturbance gas source should be as close as possible to the right angle seam between the insertion pipe and the bottom of the tank. According to the size of the tank and the properties of the medium, as many disturbance gas outlets as possible should be arranged, with a minimum of 2. Depending on the usage, there is no upper limit. The medium of the disturbance gas source can be changed to nitrogen, hydrogen, or booster steam according to the actual situation of the medium on site.

[0018] Specifically: The anti-settlement structure of this utility model includes an anti-settlement pipe fitting, a disturbance gas source assembly, and a tank with a stirrer. The upper part of the tank is connected to an interface for introducing solvents and catalysts. The anti-settlement pipe fitting includes a flange 2 and a steel pipe 1 for introducing materials. The steel pipe 1 is inserted into the tank at the center of the bottom of the tank and leaves a gap with the blades of the stirrer. The inserted steel pipe 1 is located directly below the blades. The steel pipe 1 is connected to the bottom of the tank through the flange 2. The disturbance gas source assembly includes a disturbance gas source pipe. A gas source inlet 3 is provided near the connection between the steel pipe 1 and the bottom of the tank. The gas source inlet 3 is connected to the disturbance gas source pipe. At least two gas source inlets 3 are provided on the bottom of the tank. The outer diameter of the steel pipe 1 is the same as the inner diameter of the flange 2 connecting pipe; the disturbance gas source pipeline is connected to a nitrogen pipeline, a hydrogen pipeline, or a booster steam pipeline, and the disturbance gas source is introduced into the tank through the gas source inlet 3, so that the inserted steel pipe 1 and the dead zone at the bottom of the tank form a disturbance zone; the tank is used to contain media containing easily settled metal particles; when the agitator rotates, it generates centrifugal force, which can carry the particles to the tank wall. When a certain level of material enters the tank, the agitator is ready to start. The agitator is turned on and adjusted to a suitable speed, and at the same time the disturbance gas source (such as nitrogen, hydrogen, or booster steam) is turned on, so that the steel pipe 1 and the "dead zone" at the bottom of the tank are fully disturbed, preventing solid particles from settling for a long time; when the agitator is stopped, the disturbance gas source can be turned off according to the time situation.

[0019] Example 1: Taking a preparation tank containing a catalyst with easily precipitated metal particles as an example, the tank is equipped with a stirrer and has an interface at the top for introducing solvent and catalyst.

[0020] The outer diameter of the steel pipe 1 of the anti-settlement fitting is the same as the inner diameter of the flange 2. The steel pipe 1 is inserted into the center of the bottom of the tank, leaving a gap with the agitator blades, and is connected to the bottom of the tank through the flange 2. The agitation gas source pipeline of the agitation gas source assembly is connected to the nitrogen pipeline. At least two gas source inlets 3 are provided at the bottom of the tank, near the connection between the steel pipe 1 and the bottom of the tank. When the liquid level of the material in the tank reaches the agitator start-up condition, the agitator is turned on and adjusted to a suitable speed. At the same time, nitrogen is introduced into the tank through the agitation gas source pipeline and gas source inlets 3, so that the "dead zone" between the steel pipe 1 and the bottom of the tank is formed into a disturbance zone, preventing the settlement of metal particles. The centrifugal force generated by the rotation of the agitator carries the metal particles to the tank wall, further reducing the particles in the central area. When the agitator is stopped, the nitrogen is turned off according to the actual situation. In this way, metal particles in the catalyst will not enter the downstream equipment, ensuring the normal operation of the equipment and extending its service life.

[0021] Finally, it should be noted that this utility model is not limited to the above embodiments, and many variations are possible. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this utility model should be considered within the protection scope of this utility model.

Claims

1. A structure for preventing bottom settling of a container, characterized in that, The device includes anti-settling pipe fittings and a disturbance gas source assembly, as well as a tank with a stirrer. The upper part of the tank is connected to an interface for introducing solvents and catalysts. The anti-settling pipe fittings include a flange (2) and a steel pipe (1) for introducing materials. The steel pipe (1) is inserted into the tank at the center of the bottom of the tank and leaves a gap with the blades of the stirrer. The steel pipe (1) is connected to the bottom of the tank through the flange (2). The disturbance gas source assembly includes a disturbance gas source pipe. A gas source inlet (3) is provided near the connection between the steel pipe (1) and the bottom of the tank. The gas source inlet (3) is connected to the disturbance gas source pipe. At least two gas source inlets (3) are provided on the bottom of the tank.

2. The anti-settlement structure for container bottoms according to claim 1, characterized in that, The outer diameter of the steel pipe (1) is the same as the inner diameter of the flange (2) connecting pipe.

3. A structure for preventing bottom settlement of a container according to claim 1 or 2, characterized in that, The disturbance gas source pipeline is connected to a nitrogen pipeline, a hydrogen pipeline, or a booster steam pipeline. The disturbance gas source is introduced into the tank through the gas source inlet (3), so that the inserted steel pipe (1) and the dead zone at the bottom of the tank form a disturbance zone.

4. The anti-settlement structure for container bottoms according to claim 1, characterized in that, The tank is used to contain a medium containing easily settling metal particles.

5. The anti-settlement structure for container bottoms according to claim 1, characterized in that, The agitator generates centrifugal force when it rotates, which can carry the particles to the tank wall.

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