Coke oven gas hydrogen production adsorption tower device

Abstract

The utility model provides an adsorption tower device for hydrogen production from coke oven gas. The adsorption tower device comprises a tower body and a filler module, the tower body comprises a tower body and a side cover; an air inlet is formed in the lower end of the side wall of the tower body; an air outlet is formed in the top; the cross section of the tower body is rectangular, a material changing hole is formed in the middle section of the side wall, and a side cover is detachably arranged at the material changing hole; the filler module comprises an accommodating frame and filler filled in the accommodating frame; the accommodating frame is matched with the inner cavity of the tower body in shape; the multiple filler modules are detachably arranged in the middle section of the inner cavity of the tower body at equal intervals in the vertical direction, the outer side walls of the filler modules are attached to the inner wall of the tower body and the inner wall of the side cover, and the filler modules are fed in or taken out from the material changing holes. The adsorption tower device for hydrogen production from coke oven gas disclosed by the utility model can effectively improve the loading and unloading efficiency, avoid local packing accumulation, prevent the lower packing from being extruded by the upper packing to deform and crack, and also realize convenient replacement of local packing.

Description

Technical Field

[0001] The utility model belongs to the field of coke oven gas hydrogen production equipment, and particularly relates to an adsorption tower device for coke oven gas hydrogen production. Background Technique

[0002] Coke oven gas is a combustible gas generated during the high-temperature and slow carbonization process of coal in the coke production process. The coke oven gas produced by coking production enterprises needs to be recycled and cannot be discharged, which promotes the development of industrial technologies such as coke oven gas hydrogen production and methanol production.

[0003] Coke oven gas is rich in hydrogen (about 55%). Using coke oven gas to produce hydrogen is an important way to obtain industrial hydrogen on a large scale, at low cost, and with high efficiency at present. Among them, the pressure swing adsorption method (PSA), as a flexible and practical hydrogen separation process technology, is widely used in coke oven gas hydrogen production. During the process of using the pressure swing adsorption method, an adsorption tower is required. The tower body of the adsorption tower is filled with adsorption packing. The gas enters from below and after being adsorbed by the adsorption packing, the hydrogen flows out from the upper gas outlet, completing the process of adsorption and impurity removal. Most of the existing adsorption towers are of vertical structure. When loading or removing the packing, it needs to be loaded or removed little by little from the manhole, with low efficiency. There is also a problem of packing residue when removing it. Moreover, the packing accumulates in the tower body, with uneven accumulation distribution. The lower packing is easily deformed and cracked under the extrusion of the upper packing; or a modular packing layer is used to be filled at intervals layer by layer from the top of the tower body after opening the tower cover. Although this method avoids the defects of bulk filling and removal from the manhole, filling layer by layer from the top still has problems of poor operation, large workload, and when replacing the lower packing module, it is also necessary to take out the upper packing module at the same time, with poor operation convenience. Content of the Utility Model

[0004] In view of this, to solve the above technical problems, the utility model aims to propose an adsorption tower device for coke oven gas hydrogen production. Through reasonable design of the tower body structure and the packing module structure, the efficiency of loading and unloading can be effectively improved. While ensuring that the packing is evenly distributed in the tower, avoiding local accumulation, reducing the situation that the lower packing is deformed and cracked under the extrusion of the upper packing, it can also achieve convenient replacement of local packing and is more convenient to operate.

[0005] To achieve the above object, the technical solution of the utility model is realized as follows:

[0006] An adsorption tower device for coke oven gas hydrogen production, comprising:

[0007] Tower body, the tower body includes a tower shaft and a side cover; an air inlet is provided at the lower end of the side wall of the tower shaft, an air outlet is provided at the top, and a sewage outlet is provided at the bottom; the cross-section of the tower shaft is rectangular, and a material replacement hole is opened in the middle section of the side wall, and the side cover is detachably arranged at the material replacement hole;

[0008] Packing module, the packing module includes a containing frame and packing filled in the containing frame; the cross-section of the containing frame is rectangular, which is adapted to the shape of the inner cavity of the tower shaft; there are multiple packing modules, which are detachably arranged at equal intervals in the middle section of the inner cavity of the tower shaft along the vertical direction, the outer side wall of the packing module fits with the inner wall of the tower shaft and the inner wall of the side cover, and the packing module is sent in or taken out from the material replacement hole.

[0009] Gas enters the tower body from the air inlet, passes through the packing from bottom to top, impurities are adsorbed, and hydrogen is discharged from the air outlet and sent to the next refining process; the packing is accommodated by the containing frame to form multiple independent packing modules, and the containing frame plays a role in supporting and containing the packing. The packing modules are then loaded into the tower shaft at intervals one by one through the material replacement holes on the side of the tower shaft, avoiding the accumulation and extrusion of the packing. The modular structure can improve the efficiency of loading and unloading. At the same time, due to the use of the side packing loading mode, the operation is more convenient. When replacing the lower packing module, it is not necessary to take out the upper packing module at the same time, and the operation convenience is better.

[0010] Further, the material replacement hole is rectangular, and a mounting plate extending outward is provided at the edge; the side cover is rectangular, and is provided with a docking plate detachably connected to the mounting plate by bolts and a convex platform that can be inserted into the material replacement hole; the side of the packing module facing the material replacement hole fits with the convex platform.

[0011] After the side cover is docked with the mounting plate, it is fixed to the tower body by bolts.

[0012] Further, a sealing strip installation groove is provided on the convex platform along the horizontal direction, and a sealing strip is arranged on the sealing strip installation groove; the side of the packing module facing the material replacement hole fits with the sealing strip.

[0013] By setting a sealing strip on the side cover, after the side cover is installed, it fits tightly with the packing module, avoiding the leakage of gas from the edge without being processed by the packing module.

[0014] Further, insertion slots are symmetrically arranged on the inner side wall of the middle section of the tower shaft; insertion plates adapted to the insertion slots are provided on both sides of the containing frame and can be inserted into the insertion slots.

[0015] The packing module and the tower body are detachably assembled by inserting the insertion slots and the insertion plates, which is convenient for operation, occupies a small space inside the tower, and does not affect the flow of air.

[0016] Further, a push-pull handle is provided on one side of the accommodation frame facing the charging hole, facilitating the pushing and pulling of the packing module.

[0017] Further, the accommodation frame includes a support plate at the bottom, four side enclosing plates arranged along the outer edge of the support plate, and a cover plate detachably buckled on the top of the side enclosing plates; both the support plate and the cover plate are screen structures, and reinforcing ribs are provided at the bottom of the support plate.

[0018] The packing is filled in the accommodation frame, and the accommodation frame plays a role in supporting the packing therein. The stacking thickness of the packing becomes smaller, which can reduce the stacking pressure on the lower-layer packing and is also more conducive to the uniform distribution of the packing; in addition, adopting a modular method can improve the efficiency of loading and removing the packing.

[0019] Further, the inner cavity of the accommodation frame is divided into multiple chambers by a reinforcing plate, and each chamber contains the packing; the reinforcing plate is connected to the support plate and the side enclosing plates.

[0020] Further, a gas distribution plate is also provided between the air inlet and the packing module in the inner cavity of the tower body, making the gas distribution more uniform during the rising process.

[0021] Compared with the prior art, the coke oven gas hydrogen production adsorption tower device of the present invention has the following advantages:

[0022] Through the reasonable design of the tower body structure and the packing module structure, the coke oven gas hydrogen production adsorption tower device of the present invention can adopt the method of side loading of the packing, and the packing modules are sequentially and spacedly loaded into the tower body through the charging holes on the side of the tower body, avoiding the stacking and extrusion of the packing. The modular structure of the packing can improve the efficiency of loading and unloading, and at the same time, due to the side loading of the packing, the operation is more convenient. When replacing the lower-layer packing module, it is not necessary to take out the upper-layer packing module at the same time, and the operation convenience is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0024] Figure 1 is a schematic internal structure diagram of the coke oven gas hydrogen production adsorption tower device according to an embodiment of the present invention;

[0025] Figure 2 is Figure 1 an enlarged view of part A of

[0026] Figure 3 is a schematic internal structure diagram of the tower body according to an embodiment of the present invention;

[0027] Figure 4 Schematic side view of the tower body according to the embodiment of the present utility model;

[0028] Figure 5 Top view structural schematic diagram of the accommodation frame according to the embodiment of the present utility model;

[0029] Figure 6 Front view structural schematic diagram of the accommodation frame according to the embodiment of the present utility model.

[0030] Explanation of reference numerals:

[0031] 1 - tower body, 2 - packing module, 3 - gas distribution plate, 4 - tower body, 5 - side cover, 6 - air inlet, 7 - air outlet, 8 - sewage outlet, 9 - refueling hole, 10 - slot, 11 - mounting plate, 12 - docking plate, 13 - protruding platform, 14 - sealing strip installation groove, 15 - sealing strip, 16 - accommodation frame, 17 - packing, 18 - support plate, 19 - side enclosure plate, 20 - cover plate, 21 - reinforcing plate, 22 - insertion plate, 23 - push - pull handle, 24 - reinforcing rib. Detailed implementation manners

[0032] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0033] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing 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 thus should not be construed as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more.

[0034] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0035] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments.

[0036] As Figures 1 to 6As shown in the figure, a hydrogen production adsorption tower device for coke oven gas includes a tower body 1, a packing module 2, and a gas distribution plate 3;

[0037] The tower body 1 includes a tower shaft 4 and a side cover 5; an air inlet 6 is provided at the lower end of the side wall of the tower shaft 4, an air outlet 7 is provided at the top, and a sewage outlet 8 is provided at the bottom; the cross-section of the tower shaft 4 is rectangular, a charging hole 9 is opened in the middle section of the side wall of the tower shaft 4, and slots 10 are symmetrically arranged on the inner side wall of the middle section of the tower shaft 4; the charging hole 9 is rectangular, and a mounting plate 11 extending outward is provided at the edge; the side cover 5 is rectangular, and is provided with a docking plate 12 detachably connected to the mounting plate 11 by bolts and a convex platform 13 that can be inserted into the charging hole 9; a sealing strip installation groove 14 is provided along the horizontal direction on the convex platform 13, and a sealing strip 15 is arranged on the sealing strip installation groove 14;

[0038] The packing module 2 is sent in or taken out from the charging hole 9; there are multiple packing modules 2, which are detachably arranged at equal intervals in the middle section of the inner cavity of the tower shaft 4 along the vertical direction. One side of the packing module 2 facing the charging hole 9 is attached to the sealing strip 15, and other outer side walls are attached to the inner wall of the tower shaft 4; the packing module 2 includes a containing frame 16 and packing 17 filled in the containing frame 16; the cross-section of the containing frame 16 is rectangular and is adapted to the shape of the inner cavity of the tower shaft 4, and includes a support plate 18 at the bottom, four side enclosing plates 19 arranged along the outer edge of the support plate 18, a cover plate 20 detachably buckled on the top of the side enclosing plates 19, and a reinforcing plate 21 that divides the inner cavity of the containing frame 16 into multiple chambers; the reinforcing plate 21 is connected to the support plate 18 and the side enclosing plates 19; an insertion plate 22 adapted to the slots 10 is provided on the outer side of the side enclosing plates 19 and can be inserted into the slots 10, and a push-pull handle 23 is provided on the side enclosing plate facing the charging hole 9; both the support plate 18 and the cover plate 20 are screen structures, and reinforcing ribs 24 are provided at the bottom of the support plate 18; the packing 17 is filled in each chamber;

[0039] The gas distribution plate 3 is arranged in the inner cavity of the tower shaft 4, between the air inlet 6 and the packing module 2.

[0040] The working principle of the hydrogen production adsorption tower device for coke oven gas of the present utility model is as follows:

[0041] When loading the packing, the packing module 2 filled with packing is sent into the tower shaft 4 from the charging hole 9, the insertion plate 22 is inserted into the slot 10 to support the packing module 2, and the assembly of the packing module 2 and the tower shaft 4 is completed; the side cover 5 is covered at the charging hole 9, the sealing strip 15 is closely attached to the packing module 2, and then the side cover 5 is connected to the tower shaft 4 by bolts to complete the assembly;

[0042] Gas flow process: The gas enters the tower body from the air inlet 6, passes through the packing 17 from bottom to top, impurities are adsorbed, and hydrogen is discharged from the air outlet 7 and sent to the next refining process;

[0043] When replacing the packing 17, open the side cover 5 and take out the corresponding packing module 2 to be replaced.

[0044] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A coke oven gas hydrogen production adsorption tower device, characterized in that: include: The tower body comprises a tower body and a side cover; an air inlet is provided at the lower end of the side wall of the tower body, an air outlet is provided at the top, and a sewage outlet is provided at the bottom; the cross section of the tower body is rectangular, a material exchange hole is provided in the middle section of the side wall, and the side cover is detachably provided at the material exchange hole; A filling module, the filling module comprises a containing frame and a filler filled in the containing frame; the cross section of the containing frame is rectangular, adapted to the shape of the inner cavity of the tower body; there are a plurality of filling modules, which are detachably arranged at equal intervals in the vertical direction in the middle section of the inner cavity of the tower body, the outer side walls of the filling modules are in contact with the inner walls of the tower body and the inner walls of the side cover, and the filling modules are fed in or taken out from the material changing hole.

2. The coke oven gas hydrogen production adsorption tower device according to claim 1, characterized in that: The material exchange hole is rectangular, and a mounting plate extending outward is provided at the edge; the side cover is rectangular, and is provided with a docking plate detachably connected to the mounting plate by bolts and a protruding platform that can be inserted into the material exchange hole; the side of the filler module facing the material exchange hole is in contact with the protruding platform.

3. The coke oven gas hydrogen production adsorption tower device according to claim 2, characterized in that: A sealing strip installation groove is provided on the protruding platform in a horizontal direction, and a sealing strip is provided on the sealing strip installation groove; and a side of the filling module facing the material exchange hole is in contact with the sealing strip.

4. The coke oven gas hydrogen production adsorption tower device according to claim 1, characterized in that: Slots are symmetrically arranged on the inner side wall of the middle section of the tower body; and plugging plates adapted to the slots and insertable into the slots are arranged on both sides of the accommodating frame.

5. The coke oven gas hydrogen production adsorption tower device according to claim 4, characterized in that: A push-pull handle is provided on one side of the containing frame facing the material changing hole.

6. The coke oven gas hydrogen production adsorption tower device according to claim 1, characterized in that: The containing frame includes a support plate at the bottom, four side panels arranged along the outer edge of the support plate, and a cover plate detachably buckled on the top of the side panels; the support plate and the cover plate are both screen structures, and reinforcing ribs are provided at the bottom of the support plate.

7. The coke oven gas hydrogen production adsorption tower device according to claim 6, characterized in that: The inner cavity of the containing frame is divided into a plurality of chambers by a reinforcing plate, and each chamber contains the filler; the reinforcing plate is connected to the supporting plate and the side panel.

8. The coke oven gas hydrogen production adsorption tower device according to any one of claims 1 to 7, characterized in that: The inner cavity of the tower body is located between the air inlet and the filler module and is also provided with an air distribution plate.

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