Feeding structure of adsorption tower and adsorption tower

Abstract

The present invention discloses a material discharge structure of an adsorption tower and an adsorption tower, which are used for discharging adsorbed fillers in the adsorption tower, and include a material discharge section tower wall corresponding to the material discharge section of the adsorption tower and a support tube arranged in the material discharge section of the adsorption tower, wherein the material discharge section tower wall gradually retracts from top to bottom, and the support tube gradually expands from top to bottom, and the lower end of the support tube is connected to the material discharge section tower wall, and an annular material discharge area is formed between the outer wall of the support tube and the inner wall of the material discharge section tower wall, and a partition component is arranged in the material discharge area, and the partition component is inclined relative to the vertical direction, and the partition component divides the material discharge area into more than two unloading intervals along the circumference of the adsorption tower, and a discharge port is arranged at the bottom of each unloading interval. In the present invention, the annular material discharge area is divided into a plurality of independent unloading intervals by a partition component, and each unloading interval gradually shrinks from top to bottom and is respectively provided with a discharge port, thereby forming a unloading area without dead angles, facilitating natural material discharge, reducing manual intervention, and reducing filler residue.

Description

Technical Field

[0001] The invention belongs to the technical field of coal gas processing, and in particular relates to a material discharge structure of an adsorption tower and an adsorption tower. Background Art

[0002] Fixed bed adsorption tower has the advantages of being simple and reliable, and has a wide range of industrial application cases. For a long time, its unloading has mainly relied on natural dropping of materials from the discharge port set at the bottom of the tower body. Because the adsorbent filler itself has a repose angle, when the angle of unloading to the pile is greater than the repose angle, it is impossible to rely on natural dropping to discharge the piled materials in the tower. Manual intervention is often required to rush the materials to the discharge port to discharge the residual materials. The larger the diameter of the adsorption tower, the more residual materials there are, the more arduous the manual intervention work is, the longer the unloading takes, and the worse the working environment. Summary of the invention

[0003] In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a material discharge structure of an adsorption tower, which is convenient for unloading and reduces residual materials.

[0004] To achieve the above objectives and other related objectives, the technical solution of the present invention is as follows:

[0005] A material discharge structure of an adsorption tower is arranged at the lower part of the adsorption tower and is used for discharging adsorption fillers in the adsorption tower. The structure comprises a material discharge section tower wall corresponding to the material discharge section of the adsorption tower and a support tube arranged in the material discharge section of the adsorption tower. The material discharge section tower wall gradually retracts inward from top to bottom, and the support tube gradually expands outward from top to bottom. The lower end of the support tube is connected to the material discharge section tower wall. An annular material discharge area is formed between the outer wall of the support tube and the inner wall of the material discharge section tower wall. A partition component is arranged in the material discharge area. The partition component is inclined relative to the vertical direction. The partition component divides the material discharge area into more than two unloading intervals along the circumference of the adsorption tower, and a discharge port is arranged at the bottom of each unloading interval.

[0006] By adopting the above structure, the annular unloading area is divided into multiple independent unloading intervals by dividing components. Each unloading interval gradually shrinks from top to bottom and is respectively provided with a discharge port, thereby forming a unloading interval without dead corners, facilitating natural material dropping, reducing manual intervention, and reducing filler residue.

[0007] Optionally, the inclination angle of the partition member relative to the vertical direction is smaller than the repose angle of the packing in the adsorption tower.

[0008] Optionally, the support tube is a conical structure with a diameter gradually increasing from top to bottom.

[0009] Optionally, the diameter of the tower wall of the lower material section gradually decreases from top to bottom, and the inner wall is a conical surface or a spherical surface.

[0010] Optionally, the partition components are at least two groups arranged at intervals, each group of partition components includes two partitions arranged back to back, each of the partitions is supported on the outer wall of the support tube and the inner wall of the tower wall of the unloading section, and the upper ends of the two partitions are connected, and the inclination angle of each partition relative to the vertical direction is smaller than the repose angle of the filler in the adsorption tower.

[0011] Optionally, the discharge port is provided with a discharge valve.

[0012] Optionally, the discharge port is arranged at the bottom of the tower wall of the lower material section, close to the connection between the lower end of the support tube and the tower wall of the lower material section, and the lower ends of the isolation components are close to the discharge port.

[0013] Optionally, the projection of the unloading interval in the vertical direction is fan-shaped, and the cross-sectional area gradually decreases from top to bottom.

[0014] Optionally, each side wall surrounding the unloading area is an inclined surface or a curved surface.

[0015] Optionally, a vertical airflow channel is formed in the support tube.

[0016] The present invention also provides an adsorption tower, which is an annular radial flow fixed bed adsorption tower, including the feed structure of the adsorption tower, wherein an annular adsorption section is arranged above the feed zone in the adsorption tower, the center of the adsorption section is a gas channel, a gas inlet is arranged at the bottom of the adsorption tower, and the inner cavity of the support tube connects the gas inlet with the gas channel of the adsorption section; a gas collecting chamber is arranged in the adsorption tower, and a gas outlet connected to the gas collecting chamber is arranged at the top of the adsorption tower; or the positions of the gas inlet and the gas outlet are swapped.

[0017] The present invention also provides an adsorption tower, which is an annular radial flow fixed bed adsorption tower, including the feed structure of the adsorption tower, wherein an annular adsorption section is arranged above the feed area in the adsorption tower, and the center of the adsorption section is a gas channel; a gas inlet is arranged at the bottom of the adsorption tower, and the inner cavity of the support tube connects the gas inlet and the gas channel of the adsorption section; a gas collecting chamber is arranged on the periphery of the adsorption tower, and a gas outlet is arranged on the gas collecting chamber.

[0018] The present invention also provides an adsorption tower, which is an axial flow fixed bed adsorption tower, including the feed structure of the adsorption tower, an adsorption section is arranged above the feed section in the adsorption tower, a gas inlet is arranged at the top of the adsorption tower, a gas outlet is arranged at the bottom of the adsorption tower, the gas outlet is connected to the inner cavity of the support tube, and a baffle plate that allows airflow to pass is arranged at the upper end of the support tube; or the positions of the gas inlet and the gas outlet are swapped.

[0019] The beneficial effect of the present invention is that the present invention divides the annular unloading area into multiple independent unloading intervals through a partition component, each unloading interval gradually shrinks from top to bottom, and is respectively provided with a discharge port, thereby forming a unloading interval without dead angles, facilitating natural material dropping, reducing manual intervention, and reducing filler residue. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the elevation layout of the blanking structure in an embodiment of the present invention.

[0021] Figure 2 It is a schematic diagram of the planar layout of the material feeding structure in an embodiment of the present invention;

[0022] Figure 3 It is a three-dimensional diagram of the blanking structure in the embodiment of the present invention;

[0023] Figure 4 It is a schematic diagram of a single unloading unit in an embodiment of the present invention;

[0024] Figure 5 It is a schematic structural diagram of an annular radial flow fixed bed adsorption tower in one embodiment of the present invention;

[0025] Figure 6 It is a schematic structural diagram of an annular radial flow fixed bed adsorption tower in another embodiment of the present invention;

[0026] Figure 7 It is a schematic diagram of the structure of an axial flow fixed bed adsorption tower in one embodiment of the present invention.

[0027] Part Number Description

[0028] 100-feeding area; 101-feeding section tower wall; 102-support cylinder; 103-partition; 104-discharge port; 105-unloading valve; 200-adsorption tower body; 201-gas inlet; 202-gas outlet; 203-adsorption section; 204-loading port; 205-air flow diffusion section; 206-gas channel; 207-gas collecting chamber; 208-baffle plate; 209-air flow diffusion section; 210-gas collecting chamber. DETAILED DESCRIPTION

[0029] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0030] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" etc. used in this specification are only for the convenience of description and are not intended to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships, without substantially changing the technical content, should also be regarded as the scope of implementation of the present invention.

[0031] Example 1

[0032] like Figures 1 to 4 As shown, the present embodiment is a discharge structure of an adsorption tower, which is arranged at the lower part of the adsorption tower and is used for discharging adsorption fillers in the adsorption tower, and comprises a discharge section tower wall 101 corresponding to the discharge section of the adsorption tower and a support cylinder 102 arranged in the discharge section of the adsorption tower, wherein the upper end of the discharge section tower wall 101 is cylindrical, the discharge section tower wall 101 gradually retracts from top to bottom, the support cylinder 102 gradually expands from top to bottom, and the lower end of the support cylinder 102 is supported on the inner wall of the discharge section tower wall 101 An annular unloading area 100 (annular in shape when viewed from a top view) is formed between the outer wall of the support cylinder 102 and the inner wall of the unloading section tower wall 101. The upper end of the unloading area 100 is open for receiving fillers from the adsorption section 203. A partition component is arranged in the unloading area 100. The partition component is inclined relative to the vertical direction. The partition component divides the unloading area 100 into more than two unloading intervals along the circumference of the adsorption tower. A discharge port 104 is arranged at the bottom of each unloading interval.

[0033] The annular unloading area 100 is divided into a plurality of independent unloading sections without dead angles by dividing components. Each unloading section gradually shrinks from top to bottom, and a discharge port 104 is provided at the bottom to facilitate natural unloading, reduce manual intervention, reduce filler residue, and achieve uniform unloading.

[0034] Specifically, the inclination angle of the partition component relative to the vertical direction is smaller than the repose angle of the filler in the adsorption tower, so that the filler on the inclined surface of the partition component can automatically fall down to avoid residue.

[0035] In one embodiment, the support cylinder 102 is a tapered structure with a gradually increasing diameter from top to bottom, that is, a tapered cylinder with openings at both ends. The diameter of the unloading section tower wall 101 gradually decreases from top to bottom, and the inner wall of the unloading section tower wall 101 is a conical surface or a spherical surface, so that the four side walls of the unloading section are inclined surfaces or curved surfaces, so as to facilitate the automatic falling of the filler. In the figure, the inner wall of the unloading section tower wall 101 is a spherical structure, and it can be a conical surface in other embodiments.

[0036] The projection of the unloading area in the vertical direction is fan-shaped (i.e., in the top-down direction), and the cross-sectional area gradually decreases from top to bottom.

[0037] A discharge valve 105 is provided below the discharge port 104 of each discharge interval for individual control to achieve automatic discharge. The discharge valve 105 can be controlled to open and close by an electric valve, a pneumatic valve, etc.

[0038] In one embodiment, the partition members are at least two groups arranged at intervals, such as Figure 2 and Figure 3As shown, each group of partition components includes two partitions 103 arranged back to back, each partition 103 is supported on the outer wall of the support tube 102 and the inner wall of the unloading tower wall 101, and the upper ends of the two partitions 103 are connected, and the inclination angle of each partition 103 relative to the vertical direction is smaller than the repose angle of the packing in the adsorption tower.

[0039] In one embodiment, the discharge port 104 is arranged at the bottom of the unloading section tower wall 101, close to the connection between the lower end of the support tube 102 and the unloading section tower wall 101, and the lower end of the isolation component is close to the discharge port 104, so that the fillers in the unloading interval can be automatically discharged to reduce residue.

[0040] A vertical airflow channel is formed in the support tube 102 for the inlet and outlet of coal gas.

[0041] Example 2

[0042] like Figure 5 As shown, in this example, an adsorption tower is illustrated, which is an annular radial flow fixed bed adsorption tower, including an adsorption tower body 200 and the material discharge structure of the adsorption tower described in Example 1, wherein an annular adsorption section 203 is arranged above the material discharge area 100 in the adsorption tower body 200, an adsorbent is arranged in the adsorption section 203, the center of the adsorption section 203 is a gas channel 206, a gas inlet 201 is arranged at the bottom of the adsorption tower body 200, the inner cavity of the support tube 102 connects the gas inlet 201 and the gas channel 206 of the adsorption section 203, and a gas outlet 202 is arranged at the top of the adsorption tower body 200. Among them, the inner cavity of the support tube 102 forms an airflow diffusion section 205, and an adsorbent loading port 204 is also arranged at the top of the adsorption tower body 200.

[0043] The side wall of the support tube 102 serves as a material support and blocks airflow, thereby separating the adsorbent from the gas. The inner and outer side walls of the adsorption section 203 can both block the material and allow airflow to pass through.

[0044] The adsorption section 203 is filled with dechlorination and desulfurization adsorbents (i.e., fillers). The coal gas containing chlorine, sulfur and other media enters the air flow diffusion section 205 of the fixed bed adsorption tower from the coal gas inlet 201, enters the coal gas channel 206, radially passes through the adsorption section 203 with adsorbent built in, removes chlorine and sulfur, enters the gas collection chamber 207, and is sent to the pipeline network from the coal gas outlet 202 to complete the purification. In this example, the gas collection chamber 207 is located inside the adsorption tower body 200. The adsorbent after adsorption failure is discharged from top to bottom through the discharge port 104 of the unloading area 100. Figure 5 and Figure 6 The direction indicated by the arrow is the airflow direction.

[0045] The airflow diffusion section 205 formed in the inner cavity of the support tube 102 also plays a role in buffering the coal gas.

[0046] In another embodiment, the gas inlet 201 is arranged at the top of the adsorption tower body 200, and the gas outlet 202 is arranged at the bottom of the adsorption tower body 200, that is, the positions of the gas inlet 201 and the gas outlet 202 are reversed, and the gas flow direction is the same as that of the adsorption tower body 200. Figure 5 The opposite is shown.

[0047] like Figure 6 As shown, in this example Figure 5 The difference is that the gas collecting chamber 207 is arranged on the periphery of the adsorption tower body 200 , and the gas outlet 202 is located at one side of the adsorption tower body 200 and communicated with the gas collecting chamber 207 .

[0048] Example 3

[0049] like Figure 7 As shown, an adsorption tower is illustrated in this example, which is an axial flow fixed bed adsorption tower, including an adsorption tower body 200 and a material discharge structure of the adsorption tower. An adsorption section 203 is arranged above the material discharge section in the adsorption tower body 200, and an adsorbent is arranged in the adsorption section 203. A gas inlet 201 is arranged at the top of the adsorption tower body 200, and a gas outlet 202 is arranged at the bottom of the adsorption tower body 200. The gas outlet 202 is connected to the inner cavity of the support tube 102, and a baffle plate 208 is arranged at the upper end of the support tube 102. The baffle plate 208 blocks the adsorbent but allows the gas to pass through.

[0050] The upper part of the adsorption tower body 200 forms an airflow diffusion section 209, the inner cavity of the support tube 102 forms a gas collecting chamber 210, and the top of the adsorption tower body 200 is provided with an adsorbent loading port 204. The coal gas enters from the coal gas inlet 201 at the top of the adsorption tower body 200, passes through the airflow diffusion section 209 and the adsorption section 203, and enters the gas collecting chamber 210 formed in the inner cavity of the support tube 102, and is finally discharged from the coal gas outlet 202.

[0051] In another embodiment, the gas inlet 201 is arranged at the bottom of the adsorption tower body 200, and the gas outlet 202 is arranged at the top of the adsorption tower body 200, that is, the positions of the gas inlet 201 and the gas outlet 202 are reversed, and the gas flow direction is the same as that of the adsorption tower body 200. Figure 7 On the contrary, at this time, the inner cavity of the support tube 102 forms an airflow diffusion section, which plays a role in airflow buffering.

[0052] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. An adsorption tower, which is an axial flow fixed bed adsorption tower, characterized in that: The invention comprises a discharge structure arranged at the lower part of the adsorption tower for discharging adsorption fillers in the adsorption tower, wherein the discharge structure comprises a discharge section tower wall corresponding to the discharge section of the adsorption tower and a support tube arranged in the discharge section of the adsorption tower, wherein the discharge section tower wall gradually contracts inwards from top to bottom, and the support tube gradually expands outwards from top to bottom, and the lower end of the support tube is connected to the discharge section tower wall, and an annular discharge area is formed between the outer wall of the support tube and the inner wall of the discharge section tower wall, wherein a partition component is arranged in the discharge area, and the partition component is inclined relative to the vertical direction, and the partition component divides the discharge area into two or more discharge sections along the circumference of the adsorption tower, and a discharge port is arranged at the bottom of each discharge section; An adsorption section is arranged above the material discharge section in the adsorption tower, a gas inlet is arranged at the top of the adsorption tower, a gas outlet is arranged at the bottom of the adsorption tower, the gas outlet is communicated with the inner cavity of the support tube, and a baffle plate capable of allowing airflow to pass is arranged at the upper end of the support tube; or the positions of the gas outlet and the gas inlet are swapped; The support tube is a conical structure with a gradually increasing diameter from top to bottom; the diameter of the lower material section tower wall gradually decreases from top to bottom, and the inner wall is spherical. The partition components are at least two groups arranged at intervals, and each group of partition components includes two partitions arranged back to back. Each of the partitions is supported on the outer wall of the support tube and the inner wall of the lower material section tower wall, and the upper ends of the two partitions are connected. The inclination angle of each partition relative to the vertical direction is smaller than the repose angle of the filler in the adsorption tower.

2. The adsorption tower according to claim 1, characterized in that: The discharge port is provided with a discharge valve.

3. The adsorption tower according to claim 1, characterized in that: The discharge port is arranged at the bottom of the tower wall of the lower material section, close to the connection between the lower end of the support tube and the tower wall of the lower material section, and the lower ends of the partition components are close to the discharge port.

4. The adsorption tower according to claim 1, characterized in that: The projection of the unloading zone in the vertical direction is fan-shaped, and the cross-sectional area gradually decreases from top to bottom.

5. The adsorption tower according to claim 1, characterized in that: Each side wall surrounding the unloading area is an inclined surface or a curved surface.

6. The adsorption tower according to claim 1, characterized in that: A vertical air flow channel is formed in the support tube.

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