Static adiabatic oxidation regeneration tank

Abstract

The utility model relates to coal gas desulfurization technical field especially relates to a static static advection type oxidation regeneration tank, including the shell, the shell is divided into the upper part's cylinder shell and the lower part's base shell, the cylinder shell is equipped with the cylinder inner shell of same axle in the sleeve, the outer wall bottom between cylinder inner shell and the inner wall bottom of cylinder shell is sealed and is installed annular liquid baffle, the cavity that cylinder inner shell, cylinder shell and annular liquid baffle enclose is divided into two parts by the baffle, is liquid inlet chamber and liquid outlet chamber respectively, the bottom of cylinder inner shell is sealed and is installed conical bottom shell below annular liquid baffle, the utility model is with the physicochemical property that the specific gravity of single element sulfur is greater than water, and single element sulfur is settled down from desulfurization liquid through the gravity effect of itself, and the compact equipment structure is multipurpose in a tank, and the equipment is low in one -time investment, and simple operation is reliable, can effectively reduce the labor intensity of worker and operating cost, solves the difficult problem of regeneration under the condition of small circulation amount in the desulfurization process, makes the process flow more reasonable.

Description

Technical Field

[0001] This utility model relates to the field of coal gas desulfurization technology, and in particular to a static horizontal flow oxidation regeneration tank. Background Technology

[0002] Currently, the wet oxidation desulfurization regeneration process in the field of coal gas desulfurization is mainly divided into two types: one is the jet-type self-aspirating air low-tower regeneration technology, and the other is the blower-type high-tower regeneration technology. Both require a large amount of air to float elemental sulfur to the top of the regeneration tank / tower in the form of bubbles, and the elemental sulfur is separated by overflow, while only a very small portion of the air is used to oxidize the reduced catalyst.

[0003] In special operating conditions involving small volumes of gas and high levels of hydrogen sulfide, such as biogas, natural gas, oilfield gas, refinery gas, and yellow phosphorus tail gas, the circulation volume of the desulfurization liquid is often very small. In such cases, the jet-type self-priming air-cooled low-tower regeneration technology is difficult to manufacture, requires high-head circulating pumps, and incurs high operating costs. Meanwhile, the blower-type high-tower regeneration technology has a complex structure, requires large initial investment in equipment, demands high blower pressure, and consumes a lot of energy. In these situations, neither regeneration method can achieve the desired results. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a static horizontal flow oxidation regeneration tank with compact equipment structure, multiple uses, low initial investment, no need for foam flotation, simple and reliable operation, effective reduction of labor intensity of workers, low air volume required, and effective reduction of operating costs.

[0005] To solve the above-mentioned technical problems, the technical solution of this utility model is: a static horizontal flow oxidation regeneration tank, including an outer shell, which is divided into an upper cylindrical outer shell and a lower base outer shell, the cylindrical outer shell and the base outer shell being integrally formed; a coaxial cylindrical inner shell is fitted inside the cylindrical outer shell; the top walls of the cylindrical outer shell and the cylindrical inner shell are flush and at the same height; an annular baffle is sealed between the bottom of the outer wall of the cylindrical inner shell and the bottom of the inner wall of the cylindrical outer shell; the cylindrical inner shell, the cylindrical outer shell, and the annular baffle are connected in a sealed manner. The cavity formed by the plate is divided into two parts by the partition: an inlet cavity and an outlet cavity. A conical bottom shell is sealed and installed at the bottom of the inner cylindrical shell below the annular baffle plate. The inlet cavity has a rich liquid inlet at the upper part of the outer cylindrical shell and a rich liquid inlet at the lower part of the inner cylindrical shell. The outlet cavity has a lean liquid outlet at the upper part of the inner cylindrical shell and a lean liquid outlet at the lower part of the outer cylindrical shell. The bottom of the conical bottom shell has a sulfur slurry outlet.

[0006] As a preferred technical solution, the lower part of the base shell is provided with a conical bottom shell maintenance manhole.

[0007] As a preferred technical solution, a maintenance manhole for the inlet chamber is provided on the top wall of the inlet chamber, and a maintenance manhole for the outlet chamber is provided on the top wall of the outlet chamber.

[0008] As a preferred technical solution, a maintenance manhole is provided on the top wall of the cylindrical inner shell.

[0009] As a preferred technical solution, the inner shell of the cylinder is provided with multiple horizontal distribution plates, and the distribution plates are evenly distributed with a number of through holes.

[0010] As a preferred technical solution, the distribution plate has two layers, which are spaced apart vertically, and the through hole is a round hole.

[0011] As a preferred technical solution, an air distributor extending into the conical bottom shell is installed at the lower part of the base shell.

[0012] Due to the adoption of the above technical solution, the static horizontal flow oxidation regeneration tank includes an outer shell, which is divided into an upper cylindrical outer shell and a lower base outer shell. The cylindrical outer shell and the base outer shell are integrally set. A coaxial inner cylindrical shell is fitted inside the cylindrical outer shell. The top walls of the cylindrical outer shell and the inner cylindrical shell are flush and have the same height. An annular baffle is sealed between the bottom of the outer wall of the inner cylindrical shell and the bottom of the inner wall of the cylindrical outer shell. The cavity formed by the inner cylindrical shell, the cylindrical outer shell, and the annular baffle is divided into two parts by a partition: an inlet chamber and an outlet chamber. A conical bottom shell is sealed below the annular baffle at the bottom of the inner cylindrical shell. A rich liquid inlet for the outer shell is located at the upper part of the inlet chamber, and a rich liquid inlet for the inner shell is located at the lower part of the inner cylindrical shell. A lean liquid outlet for the inner shell is located at the upper part of the outlet chamber, and a lean liquid outlet for the outer shell is located at the lower part of the outlet chamber. A sulfur slurry outlet is located at the bottom of the conical bottom shell. The beneficial effects of this utility model are: This invention utilizes the physicochemical property that elemental sulfur has a higher specific gravity than water. Under certain operating conditions, elemental sulfur settles from the desulfurization liquid due to its own gravity. Simultaneously, appropriate air is added to regenerate the catalyst, thus completing the entire desulfurization liquid regeneration process, catalyst regeneration, and elemental sulfur separation. The desulfurization liquid enters the inlet chamber from the outer shell's rich liquid inlet, then enters the inner cylindrical shell from the inner shell's rich liquid inlet. As the water level rises, elemental sulfur sinks into the conical bottom shell under gravity, turning the rich liquid into a lean liquid, which flows out from the inner shell's lean liquid outlet and into the outlet chamber, before finally exiting from the outer shell's lean liquid outlet. The entire process eliminates the need for foam flotation, solving problems such as no foam, soap bubbles, false bubbles, and flying bubbles in the regeneration tank. The equipment has a compact structure and can simultaneously replace rich liquid tanks, lean liquid tanks, and foam tanks. It is multi-purpose, with low initial investment. Operation is simple and reliable, effectively reducing worker labor intensity. The required air volume is low, approximately 1 / 10 of other regeneration technologies, saving electricity and effectively reducing operating costs. It solves the problem of regeneration difficulties under small circulation conditions in the desulfurization process; it makes full use of the physicochemical property that elemental sulfur is heavier than water, making the process flow more reasonable. Attached Figure Description

[0013] The following figures are intended only to illustrate and explain the present invention and do not limit the scope of the present invention. Wherein: Figure 1 This is a schematic diagram of the static horizontal flow oxidation regeneration tank of this utility model; Figure 2 This is a top view of the static horizontal flow oxidation regeneration tank of this utility model.

[0014] In the diagram: 1-Cylindrical outer shell; 2-Base outer shell; 3-Cylindrical inner shell; 4-Annular baffle plate; 5-Inlet chamber; 6-Outlet chamber; 7-Conical bottom shell; 8-Outlet rich liquid inlet; 9-Inlet rich liquid inlet; 10-Inlet lean liquid outlet; 11-Outlet lean liquid outlet; 12-Sulfur slurry outlet; 13-Conical bottom shell maintenance manhole; 14-Inlet chamber maintenance manhole; 15-Outlet chamber maintenance manhole; 16-Inlet shell maintenance manhole; 17-Distribution plate; 18-Air distributor; 19-Baffle plate. Detailed Implementation

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the following detailed description, only certain exemplary embodiments of the present invention are described by way of illustration. Undoubtedly, those skilled in the art will recognize that various modifications can be made to the described embodiments without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

[0016] like Figures 1 to 2 As shown in the figure, the static horizontal flow oxidation regeneration tank is characterized by: including an outer shell, which is divided into an upper cylindrical outer shell 1 and a lower base outer shell 2, the cylindrical outer shell 1 and the base outer shell 2 are integrally set, a coaxial cylindrical inner shell 3 is fitted inside the cylindrical outer shell 1, the top walls of the cylindrical outer shell 1 and the cylindrical inner shell 3 are flush and have the same height, an annular baffle 4 is sealed between the bottom of the outer wall of the cylindrical inner shell 3 and the bottom of the inner wall of the cylindrical outer shell 1, the cavity formed by the cylindrical inner shell 3, the cylindrical outer shell 1 and the annular baffle 4 is divided into two parts by a partition 19, namely an inlet chamber 5 and an outlet chamber 6, the bottom of the cylindrical inner shell 3 is sealed below the annular baffle 4 and a conical bottom shell 7 is sealed. The inlet chamber 5 is provided with a shell enrichment chamber at the top of the cylindrical outer shell 1. The desulfurization system includes a liquid inlet 8, an inner shell rich liquid inlet 9 located at the lower part of the inner cylindrical shell 3 within the liquid inlet chamber 5, an inner shell lean liquid outlet 10 located at the upper part of the inner cylindrical shell 3 within the liquid outlet chamber 6, and an outer shell lean liquid outlet 11 located at the lower part of the outer cylindrical shell 1 within the liquid outlet chamber 6. A sulfur slurry outlet 12 is located at the bottom of the conical bottom shell 7. This invention utilizes the physicochemical property that elemental sulfur has a higher specific gravity than water. Under certain operating conditions, elemental sulfur settles from the desulfurization liquid due to its own gravity. Simultaneously, appropriate air is added to regenerate the catalyst, ultimately completing the entire desulfurization liquid regeneration process, as well as the catalyst regeneration and elemental sulfur separation. The desulfurization liquid enters the liquid inlet chamber 5 from the outer shell rich liquid inlet 8 and then enters the inner cylindrical shell 3 from the inner shell rich liquid inlet 9. Figure 1The single-line arrow indicates the liquid flow direction, and the double-line arrow indicates the elemental sulfur flow direction. As the water level rises, the elemental sulfur sinks into the conical bottom shell 7 under gravity, changing the desulfurization liquid from rich to lean. It then flows out from the lean liquid outlet 10 in the inner shell and into the liquid outlet chamber 6, before flowing out from the lean liquid outlet 11 in the outer shell. The entire process eliminates the need for foam flotation, solving problems such as no bubbles, soap bubbles, false bubbles, and flying bubbles in the regeneration tank. The equipment has a compact structure and can simultaneously replace rich liquid tanks, lean liquid tanks, and foam tanks. It is multi-purpose, with low initial investment. Operation is simple and reliable, effectively reducing the labor intensity of workers. The required air volume is low, approximately 1 / 10 of other regeneration technologies, saving electricity and effectively reducing operating costs. It solves the problem of difficult regeneration under small circulation conditions during desulfurization; it fully utilizes the physicochemical property that elemental sulfur is heavier than water, making the process flow more rational.

[0017] like Figure 1 As shown, the lower part of the base housing 2 is provided with a conical bottom shell maintenance manhole 13. The base housing 2 is also cylindrical, and the sulfur slurry outlet 12 of the conical bottom shell 7 can be maintained by entering through the conical bottom shell maintenance manhole 13.

[0018] like Figure 1 As shown, a maintenance manhole 14 for the inlet chamber 5 is provided on the top wall, and a maintenance manhole 15 for the outlet chamber 6 is provided on the top wall. The maintenance manhole 14 facilitates the maintenance and upkeep of the inlet chamber 5, and the maintenance manhole 15 facilitates the maintenance and upkeep of the outlet chamber 6.

[0019] like Figure 1 As shown, an inner shell maintenance manhole 16 is provided on the top wall of the cylindrical inner shell 3. The inner shell maintenance manhole 16 facilitates the maintenance and upkeep of the internal cavity of the cylindrical inner shell 3.

[0020] like Figure 1 As shown, the inner shell 3 of the cylinder is provided with multiple layers of horizontally oriented distribution plates 17, each with a number of through holes evenly distributed on it. These through holes on the distribution plates 17 are used to break and intercept bubbles generated by oxygen introduced into the desulfurization liquid. Therefore, the number of layers of distribution plates 17 is not limited and can be selected according to actual conditions. The shape and size of the through holes are also selected according to the oxygen flow rate. The goal is to successfully intercept the bubbles.

[0021] like Figure 1 As shown, the distribution plate 17 has two layers, which are arranged vertically and horizontally with round holes. The two-layer distribution plate 17 is a preferred technical solution, which can achieve a good effect of intercepting air bubbles while saving costs. The round holes are easy to process, improve processing efficiency, and have a good interception effect.

[0022] like Figure 1As shown, an air distributor 18 extending into the conical bottom shell 7 is installed on the lower part of the base housing 2. The air distributor 18 is for facilitating the introduction of oxygen into the desulfurization liquid, thereby accelerating the desulfurization process.

[0023] The working process is as follows: the desulfurization liquid enters the inlet chamber 5 from the rich liquid inlet 8 of the outer shell, and then enters the inner shell 3 of the cylinder from the rich liquid inlet 9 of the inner shell. As the water level rises, the elemental sulfur sinks into the conical bottom shell 7 under the action of gravity, and the desulfurization liquid changes from rich liquid to lean liquid. Then it flows out from the lean liquid outlet 10 of the inner shell and enters the outlet chamber 6, and then flows out from the lean liquid outlet 11 of the outer shell.

[0024] This utility model has the following advantages: (1) No foam flotation is required, which solves the problems of no bubbles, soap bubbles, false bubbles, and flying bubbles in the regeneration tank / tower; (2) The equipment has a compact structure and can replace the rich liquid tank, lean liquid tank, foam tank, etc. at the same time; (3) One tank can be used for multiple purposes, which effectively reduces the one-time investment and operating costs of the equipment; (4) It is simple and reliable to operate, and can effectively reduce the labor intensity of workers; (5) It requires a low amount of air, about 1 / 10 of other regeneration technologies, saving electricity and effectively reducing operating costs; (6) It solved the problem of difficult regeneration under small circulation conditions during the desulfurization process; (7) Make full use of the physical and chemical properties of elemental sulfur being heavier than water to make the process flow more reasonable.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "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 this utility model and simplifying the description, and do not indicate or imply that the device or element 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 this utility model.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A static horizontal flow oxidation regeneration tank, characterized in that: Includes an outer shell, which is divided into an upper cylindrical outer shell (1) and a lower base outer shell (2). The cylindrical outer shell (1) and the base outer shell (2) are integrally formed. A coaxial cylindrical inner shell (3) is fitted inside the cylindrical outer shell (1). The top walls of the cylindrical outer shell (1) and the cylindrical inner shell (3) are flush and have the same height. An annular baffle plate (4) is sealed between the bottom of the outer wall of the cylindrical inner shell (3) and the bottom of the inner wall of the cylindrical outer shell (1). The cavity formed by the cylindrical inner shell (3), the cylindrical outer shell (1), and the annular baffle plate (4) is divided into two parts by a partition plate (19), namely, the liquid inlet chamber (…). 5) and the liquid outlet chamber (6), the bottom of the cylindrical inner shell (3) is sealed and installed with a conical bottom shell (7) below the annular baffle plate (4), the liquid inlet chamber (5) is provided with a rich liquid inlet (8) at the upper part of the cylindrical outer shell (1), the liquid inlet chamber (5) is provided with a rich liquid inlet (9) at the lower part of the cylindrical inner shell (3), the liquid outlet chamber (6) is provided with a poor liquid outlet (10) at the upper part of the cylindrical inner shell (3), the liquid outlet chamber (6) is provided with a poor liquid outlet (11) at the lower part of the cylindrical outer shell (1), and the bottom of the conical bottom shell (7) is provided with a sulfur slurry outlet (12).

2. The static horizontal flow oxidation regeneration tank as described in claim 1, characterized in that: The lower part of the base shell (2) is provided with a conical bottom shell maintenance manhole (13).

3. The static horizontal flow oxidation regeneration tank as described in claim 1, characterized in that: The top wall of the liquid inlet chamber (5) is provided with a liquid inlet chamber maintenance manhole (14), and the top wall of the liquid outlet chamber (6) is provided with a liquid outlet chamber maintenance manhole (15).

4. The static horizontal flow oxidation regeneration tank as described in claim 1, characterized in that: The inner wall of the cylindrical inner shell (3) is provided with an inner shell maintenance manhole (16).

5. The static horizontal flow oxidation regeneration tank as described in claim 1, characterized in that: The inner shell (3) of the cylinder is provided with multiple horizontal distribution plates (17), and the distribution plates (17) are evenly distributed with several through holes.

6. The static horizontal flow oxidation regeneration tank as described in claim 5, characterized in that: The distribution plate (17) has two layers, and the two layers of the distribution plate (17) are arranged at intervals, and the through hole is a round hole.

7. The static horizontal flow oxidation regeneration tank according to any one of claims 1 to 6, characterized in that: An air distributor (18) extending into the conical base shell (7) is installed on the lower part of the base shell (2).

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