Caustic pot with conical bottom

Abstract

The utility model discloses a causticizing tank with conical tank bottom, which comprises a bin body for containing materials and stirring the materials, a ring plate fixed at the bottom of the bin body, a conical shell fixed on the upper surface of the ring plate, wherein the upper end of the conical shell has a smaller diameter than the lower end, a top plate sealingly connected to the upper end of the conical shell, a first supporting cylinder arranged between the lower surface of the conical shell and the upper surface of the ring plate, a conical shell supporting profile steel located below the conical shell, wherein the lower end of the conical shell supporting profile steel is fixed to the upper surface of the ring plate, the upper end of the conical shell supporting profile steel is fixedly connected to the top plate profile steel through a second supporting cylinder, and a blowdown port is formed in the bottom sidewall of the bin body. The conical tank bottom with a narrow upper end and a wide lower end has a gradually expanding diameter, which effectively avoids the blockage caused by the sediment deposition in the conventional structure, and greatly improves the smoothness and continuity of the sludge discharge.

Description

Technical Field

[0001] This utility model belongs to the field of solid material or slurry material mixing technology, and specifically relates to a causticizing tank with a conical bottom. Background Technology

[0002] With the rapid development and continuous expansion of production scale in the soda ash industry, the causticizing tank, as one of the core key pieces of equipment in the causticizing process, has seen a significant increase in both its specifications and material handling capacity. During the causticizing reaction, raw materials enter the causticizing tank through the feeding system. Under the strong stirring action of the agitator, the materials are thoroughly mixed and reacted, naturally forming two layers: an upper clear liquid and a lower sludge layer. The clear liquid is discharged through multiple liquid outlet pipes located at the top and middle of the equipment, while the denser sludge is discharged through the sludge outlet system located at the bottom of the conical tank.

[0003] like Figure 1 As shown, traditional causticizing tanks generally employ a conical bottom structure with a diameter that gradually decreases from top to bottom. This structure has significant drawbacks when processing solid particulate materials or high-concentration slurry materials. Because the diameter of the conical bottom gradually decreases, the linear velocity of the agitator blades near the bottom decreases accordingly, leading to a reduction in the flow velocity of the sludge. This decreasing velocity effect makes the sludge prone to deposition and accumulation near the sludge outlet area, eventually causing severe blockage at the outlet. Once blockage occurs, the entire causticizing tank must be shut down for manual cleaning and unblocking. This not only significantly increases equipment maintenance costs but also causes frequent production line interruptions, severely impacting the continuous operating efficiency and production capacity of the equipment. Utility Model Content

[0004] This invention provides a causticizing tank with a conical bottom, which aims to solve the problem of blockage at the solid phase outlet or sludge discharge port in the causticizing tank.

[0005] The purpose of this utility model is to provide a causticizing vessel with a conical bottom, comprising:

[0006] A container for holding and mixing materials;

[0007] A ring plate fixed to the bottom of the chamber;

[0008] A conical shell is fixed to the upper surface of the ring plate, the upper port diameter of the conical shell being smaller than the lower port diameter; a top plate is sealed to the upper port of the conical shell; a supporting cylinder is provided between the lower surface of the conical shell and the upper surface of the ring plate.

[0009] The cone shell support steel is located below the cone shell. The lower end of the cone shell support steel is fixed to the upper surface of the ring plate, and the upper end of the cone shell support steel is fixedly connected to the top plate steel through the second support cylinder.

[0010] A drain outlet is provided on the bottom side wall of the silo.

[0011] Preferably, the top plate steel is connected to the lower surface of the top plate.

[0012] Preferably, the angle between the sidewall of the conical shell and the horizontal plane is in the range of 10° to 30°.

[0013] Preferably, the silo body includes a cylindrical shell and a stirring mechanism located inside the cylindrical shell, with the lower end of the stirring mechanism supported on the upper surface of the top plate.

[0014] Preferably, the inner diameter of the ring plate is less than or equal to the inner diameter of the first supporting cylinder, and the outer diameter of the ring plate is greater than or equal to the outer diameter of the cylindrical shell.

[0015] Preferably, the top plate steel is a grid-shaped steel, or a parallel steel, or a radial steel.

[0016] Preferably, the height of the drain outlet is less than the height of the top plate.

[0017] Advantages of the solution and improvements in actual results:

[0018] This invention employs a causticizing tank with a conical bottom, as described above. Due to the unique design of the conical bottom—narrower at the top and wider at the bottom—the upper diameter is significantly smaller than the lower diameter, resulting in a gradually increasing diameter across the entire tank bottom. This special conical structure design causes the rotational velocity of the agitator blades near the bottom to increase proportionally with the diameter, significantly enhancing the kinetic energy of the settled material. As the agitation velocity increases, the overall flow velocity of the settled material also increases significantly, creating a more robust turbulent flow. This significant increase in velocity allows the settled material to maintain a continuous and stable motion near the sludge outlet area, effectively preventing the blockage caused by sludge deposition common in traditional structures, and greatly improving the smoothness and continuity of sludge discharge. Attached Figure Description

[0019] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0020] Figure 1 This is a front view of a causticizing tank with a conical bottom in the prior art;

[0021] Figure 2 This is a front view of a causticizing tank with a conical bottom in a preferred embodiment of the present invention;

[0022] Figure 3 This is a front view of the conical tank bottom in a preferred embodiment of the present invention;

[0023] Figure 4 This is a top view of a causticizing tank with a conical bottom in a preferred embodiment of the present invention;

[0024] Figure 5 This is an enlarged view of part I in the preferred embodiment of this utility model;

[0025] Figure 6 This is an enlarged view of part II in the preferred embodiment of this utility model.

[0026] The components are: 1. Ring plate; 2. Conical shell; 3. Conical shell support steel; 4. Support cylinder No. 1; 5. Support cylinder No. 2; 6. Top plate; 7. Top plate steel; 8. Drainage outlet; 9. Column shell. Detailed Implementation

[0027] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0029] Please see Figures 2 to 6 A causticizing vessel with a conical bottom, comprising:

[0030] A container that holds and agitates materials; one core function of the container is to hold materials, and another core function is to agitate them.

[0031] The ring plate 1 is fixed to the bottom of the chamber body;

[0032] The ring plate 1 is made of metal, and its overall structure is a circular ring-shaped structure.

[0033] A conical shell 2 is fixed to the upper surface of the ring plate 1, the upper port diameter of the conical shell 2 is smaller than the lower port diameter; a top plate 6 is sealed to the upper port of the conical shell 2; a first support cylinder 4 is provided between the lower surface of the conical shell 2 and the upper surface of the ring plate 1.

[0034] The cone shell support steel 3 is located below the cone shell 2. The lower end of the cone shell support steel 3 is fixed to the upper surface of the ring plate 1, and the upper end of the cone shell support steel 3 is fixedly connected to the top plate steel 7 through the second support cylinder 5.

[0035] A drain outlet 8 is provided on the bottom side wall of the silo. There are multiple drain outlets 8, which are evenly distributed in the circumferential direction.

[0036] To better understand the technical solution of this utility model, a non-limiting description is provided below with reference to the accompanying drawings:

[0037] In one specific embodiment, the top plate steel 7 is connected to the lower surface of the top plate 6, that is, the top plate steel 7 is connected to the lower surface of the top plate 6, and the top plate steel 7 is used to reinforce the top plate 6.

[0038] In one specific embodiment, the angle α between the sidewall of the conical shell and the horizontal plane ranges from 10° to 30°. When the angle α is less than 10°, the flow of sediment along the outer side of the conical shell is poor, and it is easy to accumulate at the bottom of the tank. When the angle α is greater than 30°, it is difficult to purchase a suitable agitator. This angle can be adjusted according to the angle of the agitator provided by the agitator manufacturer so that the angle between the sidewall of the conical shell 2 and the horizontal plane of the agitator is the same; for example, the angle between the sidewall of the conical shell 2 and the horizontal plane can be selected as 10°, 20°, or 30°.

[0039] In one specific embodiment, the inner diameter of the ring plate 1 is less than or equal to the inner diameter of the first support cylinder 4, and the outer diameter of the ring plate 1 is greater than or equal to the outer diameter of the column shell 9.

[0040] In one specific embodiment, the top plate steel is a grid-shaped steel, or it can be supported by parallel steel or radial steel. Those skilled in the art can set it according to the actual situation.

[0041] In one specific embodiment, such as Figure 4 As shown, multiple conical shell support steel sections are evenly distributed along the circumference on a conical surface below the conical shell 2. For example, when there are eight conical shell support steel sections, the included angle between two adjacent conical shell support steel sections 3 is 45 degrees.

[0042] In one specific embodiment, the height of the drain outlet is less than the height of the top plate. Furthermore, the drain outlet 8 is located at the bottom of the causticizing tank, so that the sludge can be completely discharged from the drain outlet 8.

[0043] The chamber includes a cylindrical shell 9 and a stirring mechanism located inside the shell 9; the lower end of the stirring mechanism can be supported on the upper surface of the top plate, and the specific support method is determined according to the requirements of the stirrer manufacturer.

[0044] The conical tank bottom mainly consists of an annular plate, a conical shell, conical shell support steel, a first support cylinder, a second support cylinder, a top plate, and a top plate steel. All components are connected by welding. The upper surfaces of the annular plate, conical shell, and top plate form the surfaces of the tank bottom that come into contact with the material.

[0045] A conical shell support steel section is welded along the radial direction to the lower surface of the conical shell, and the conical shell support steel section is evenly distributed circumferentially. A top plate steel section arranged in a "well" pattern is welded to the lower surface of the top plate, and a second support cylinder is welded to the lower surface of the top plate near the outer edge. The top plate steel section and the conical shell support steel section extend to the inner and outer surfaces of the second support cylinder and are welded to the second support cylinder.

[0046] A first supporting cylinder is installed at the inner edge of the ring plate and welded to the ring plate and the conical shell. An air vent is opened at the bottom of the cylinder to prevent gas accumulation. The conical shell supporting steel is cut off at the first supporting cylinder and welded to it.

[0047] The conical shell support steel and the top plate steel provide support for the conical shell and top plate, respectively. The No. 1 support cylinder supports the conical shell and reduces stress at the connection between the conical shell and the ring plate. The No. 2 support cylinder connects the conical shell support steel and the top plate steel, improving the support effect of the steel on the bottom of the conical tank.

[0048] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0049] It should be noted that the terms "number one," "number two," etc., used in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this utility model described herein can be implemented in sequences other than those illustrated or described herein.

[0050] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A causticizing vessel with a conical bottom, characterized in that, include: A container for holding and mixing materials; The ring plate (1) is fixed to the bottom of the chamber; A conical shell (2) is fixed on the upper surface of the ring plate (1), the upper port diameter of the conical shell (2) is smaller than the lower port diameter; a top plate (6) is sealed to the upper port of the conical shell (2); a first support cylinder (4) is provided between the lower surface of the conical shell (2) and the upper surface of the ring plate (1); The cone shell support steel (3) is located below the cone shell (2). The lower end of the cone shell support steel (3) is fixed to the upper surface of the ring plate (1), and the upper end of the cone shell support steel (3) is fixedly connected to the top plate steel (7) through the second support cylinder (5). A drain outlet (8) is provided on the bottom side wall of the silo.

2. The causticizing tank with a conical bottom according to claim 1, characterized in that, The top plate steel (7) is connected to the lower surface of the top plate (6).

3. The causticizing tank with a conical bottom according to claim 1, characterized in that, The angle between the sidewall of the conical shell (2) and the horizontal plane is in the range of 10° to 30°.

4. The causticizing tank with a conical bottom according to claim 1, characterized in that, The chamber includes a cylindrical shell (9) and a stirring mechanism located inside the shell (9), with the lower end of the stirring mechanism supported on the upper surface of the top plate (6).

5. The causticizing vessel with a conical bottom according to claim 4, characterized in that, The inner diameter of the ring plate (1) is less than or equal to the inner diameter of the first support cylinder (4), and the outer diameter of the ring plate (1) is greater than or equal to the outer diameter of the column shell (9).

6. The causticizing tank with a conical bottom according to claim 2, characterized in that, The top plate steel (7) is a grid-shaped steel, or a parallel steel, or a radial steel.

7. The causticizing vessel with a conical bottom according to claim 1, characterized in that, The height of the drain outlet (8) is less than the height of the top plate (6).

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