Absorption tower for coal gas

Abstract

The utility model relates to the technical field of gas treatment equipment, and discloses an absorption tower for gas, which comprises a tower body, the bottom of the tower body is conical, a liquid inlet pipe and a liquid outlet pipe are mounted on the surface of the tower body, the liquid inlet pipe is arranged close to the top of the surface of the tower body, the liquid outlet pipe is arranged close to the bottom of the surface of the tower body, and valves are mounted on the surfaces of the liquid inlet pipe and the liquid outlet pipe. An inner cylinder is arranged in the tower body, the upper end and the lower end of the inner cylinder are connected to the upper end and the lower end of the tower body in a sleeving mode respectively, a circulating mechanism is arranged in the tower body, a filtering mechanism is arranged in the inner cylinder, the outer surface of the tower body is sleeved with a fixing ring, and the surface of the fixing ring is fixedly connected with a plurality of first supporting frames which are annularly and evenly distributed. Through the arrangement of the adsorbent, sulfur dioxide in coal gas can be filtered again, and meanwhile, the adsorbent slides up and down, so that the adsorbent in the inner cylinder is convenient to replace, and the using effect of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal gas processing equipment, in particular to an absorption tower for coal gas. Background Art

[0002] Blast furnace gas produced during blast furnace ironmaking is one of the most important secondary energy sources for steel companies and is widely used. The flue gas containing sulfur dioxide released after the combustion of blast furnace gas has always been the main source of air pollution and the culprit of acid rain on the earth. Coal gas desulfurization refers to the process of removing sulfur dioxide from coal gas by chemical or physical methods. Sulfur dioxide in coal gas is produced when sulfur-containing substances such as coal are burned. It is a harmful substance that has certain hazards to the environment and human health.

[0003] The selection of coal gas desulfurization technology is usually based on factors such as the composition of the coal gas, sulfur content, processing requirements, and economy. Currently, there are two commonly used purification methods: wet and dry. The principles of existing wet desulfurization are basically the same, but they all have the problem of insufficient absorption of hydrogen sulfide to varying degrees. Moreover, after a long period of filtration and absorption, it is not convenient to maintain the inside of the absorption tower, which will reduce the practicability of the device. Therefore, it is urgent to solve the above problems. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes an absorption tower for coal gas.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A coal gas absorption tower comprises a tower body, the bottom of the tower body is arranged in a conical shape, a liquid inlet pipe and a liquid discharge pipe are installed on the surface of the tower body, the liquid inlet pipe is arranged on the surface of the tower body near the top, the liquid discharge pipe is arranged on the surface of the tower body near the bottom, valves are installed on the surfaces of the liquid inlet pipe and the liquid discharge pipe, an inner cylinder is arranged inside the tower body, the upper and lower ends of the inner cylinder are respectively sleeved on the upper and lower ends of the tower body, a circulation mechanism is arranged inside the tower body, a filtering mechanism is arranged inside the inner cylinder, a fixing ring is sleeved on the outer surface of the tower body, a plurality of first support frames are fixedly connected to the surface of the fixing ring, and the plurality of first support frames are evenly distributed in a ring shape, and sulfur dioxide in the coal gas can be filtered again by setting an adsorbent, and the adsorbent can be slid up and down at the same time, so as to facilitate the replacement of the adsorbent inside the inner cylinder, thereby improving the use effect of the device.

[0007] Preferably, the circulation mechanism includes an air inlet pipe, which is fixedly connected to the surface of the tower body and arranged near the bottom of the tower body. A plurality of connecting ports are opened on the surface of the inner tube, and the plurality of connecting ports are evenly distributed in a ring shape. The plurality of connecting ports are all arranged at the top of the tower body, so as to connect the interior of the tower body with the interior of the inner tube, thereby facilitating the circulation of gas.

[0008] Furthermore, the filtering mechanism includes an adsorbent, the adsorbent is sleeved inside the inner cylinder, the adsorbent slides vertically inside the inner cylinder, a sliding mechanism for vertically sliding the adsorbent is provided inside the inner cylinder, an air outlet pipe is fixedly connected to the surface of the inner cylinder, the air outlet pipe is arranged at the bottom of the tower body, the sliding mechanism includes a slide plate, two slide grooves are vertically arranged on the inner curved surface of the inner cylinder, an upper support frame and a lower support frame are fixedly connected inside the inner cylinder, the adsorbent is arranged between the upper support frame and the lower support frame, the slide plate is arranged inside the inner cylinder, the slide plate slides vertically between the upper support frame and the lower support frame, and the slide plate is arranged on the adsorbent The bottom of the adsorbent is provided with a connecting port on the surface of the slide, and two limit blocks are fixedly connected to the surface of the slide, and the two limit blocks slide in the two slide grooves respectively. A rotating shaft is vertically rotated inside the inner cylinder, and the top of the rotating shaft is sleeved in the center of the lower support frame, and a screw rod is fixedly connected to the top of the rotating shaft, and the top of the screw rod is sleeved in the center of the upper support frame. The slide plate is sleeved on the surface of the screw rod, and the slide plate cooperates with the screw rod. A motor is installed at the bottom of the inner cylinder, and the motor output shaft is fixedly connected to the bottom end of the rotating shaft, which is used to make the adsorbent slide up and down, thereby facilitating the maintenance or replacement of the adsorbent inside the inner cylinder.

[0009] Preferably, a cover plate is installed on the top of the inner cylinder, a handle is fixedly connected to the top of the cover plate, two limit columns are fixedly connected to the inner wall of the cover plate, two inclined grooves are provided on the arc surface of the top of the inner cylinder, and limit grooves are horizontally provided at the bottom ends of the two inclined grooves, and the two limit columns are respectively arranged inside the two inclined grooves and the limit grooves, so as to seal the top of the inner cylinder and facilitate the opening of the cover plate.

[0010] The beneficial effects of the utility model are:

[0011] 1. When in use, the alkaline solution or absorbent placed inside the device can be used to initially filter the sulfur dioxide after the combustion of the gas, and then filtered again through the adsorbent, thereby improving the use effect of the device.

[0012] 2. When in use, the sulfur dioxide in the coal gas can be filtered again through the setting of the adsorbent, and the adsorbent can be slid up and down at the same time, so as to facilitate the replacement of the adsorbent inside the inner cylinder, thereby improving the use effect of the device.

[0013] 3. When the device is maintained, the alkaline solution or absorbent inside the tower body can be discharged through the drain pipe and replaced. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view of an absorption tower for coal gas proposed by the utility model;

[0015] Figure 2 This is a cross-sectional view of the surface structure of an absorption tower for coal gas proposed by the utility model;

[0016] Figure 3 This is a cross-sectional view of the internal structure of an absorption tower for coal gas proposed by the utility model;

[0017] Figure 4 for Figure 3 Enlarged view of point A.

[0018] In the figure: 1. tower body; 11. liquid inlet pipe; 12. liquid discharge pipe; 13. valve; 14. air inlet pipe; 15. air outlet pipe; 2. fixing ring; 21. first support frame; 3. cover plate; 31. handle; 32. limit column; 4. inner tube; 41. connecting port; 42. slide groove; 43. upper support frame; 44. lower support frame; 45. inclined groove; 46. limit groove; 5. adsorbent; 6. slide plate; 61. limit block; 7. rotating shaft; 71. screw rod; 72. motor. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0020] Reference Figure 1-Figure 4 , an absorption tower for coal gas, comprising a tower body 1, the bottom of the tower body 1 is set in a conical shape, a liquid inlet pipe 11 and a liquid discharge pipe 12 are installed on the surface of the tower body 1, the liquid inlet pipe 11 is arranged on the surface of the tower body 1 near the top, and the liquid discharge pipe 12 is arranged on the surface of the tower body 1 near the bottom, valves 13 are installed on the surfaces of the liquid inlet pipe 11 and the liquid discharge pipe 12, an inner cylinder 4 is arranged inside the tower body 1, the upper and lower ends of the inner cylinder 4 are respectively sleeved on the upper and lower ends of the tower body 1, a circulation mechanism is arranged inside the tower body 1, a filtering mechanism is arranged inside the inner cylinder 4, a fixing ring 2 is sleeved on the outer surface of the tower body 1, and a plurality of first support frames 21 are fixedly connected to the surface of the fixing ring 2, and the plurality of first support frames 21 are evenly distributed in an annular shape, and sulfur dioxide in the coal gas can be filtered again by setting an adsorbent 5, and the adsorbent 5 is slid up and down at the same time, so as to facilitate the replacement of the adsorbent 5 inside the inner cylinder 4, thereby improving the use effect of the device.

[0021] Reference Figure 1-Figure 3In a preferred embodiment, the circulation mechanism includes an air inlet pipe 14, which is fixedly connected to the surface of the tower body 1 and arranged near the bottom of the tower body 1. A plurality of connecting ports 41 are opened on the surface of the inner tube 4, and the plurality of connecting ports 41 are evenly distributed in a ring shape. The plurality of connecting ports 41 are all arranged at the top of the tower body 1, so as to connect the interior of the tower body 1 with the interior of the inner tube 4, thereby facilitating the circulation of gas.

[0022] Reference Figure 1 and Figure 3 In a preferred embodiment, the filtering mechanism includes an adsorbent 5, which is sleeved inside the inner tube 4, and the adsorbent 5 slides vertically inside the inner tube 4. A sliding mechanism for vertically sliding the adsorbent 5 is provided inside the inner tube 4. An outlet pipe 15 is fixedly connected to the surface of the inner tube 4, and the outlet pipe 15 is arranged at the bottom of the tower body 1. The sliding mechanism includes a slide plate 6. Two slide grooves 42 are vertically arranged on the inner arc surface of the inner tube 4. An upper support frame 43 and a lower support frame 44 are fixedly connected inside the inner tube 4. The adsorbent 5 is arranged between the upper support frame 43 and the lower support frame 44. The slide plate 6 is arranged inside the inner tube 4, and the slide plate 6 slides vertically between the upper support frame 43 and the lower support frame 44. The slide plate 6 is arranged at At the bottom of the adsorbent 5, a connection port is provided on the surface of the slide plate 6, and two limit blocks 61 are fixedly connected to the surface of the slide plate 6. The two limit blocks 61 slide in the two slide grooves 42 respectively. The inner tube 4 is vertically rotatably connected with a rotating shaft 7. The top of the rotating shaft 7 is sleeved at the inner center of the lower support frame 44. The top of the rotating shaft 7 is fixedly connected with a screw rod 71. The top of the screw rod 71 is sleeved at the inner center of the upper support frame 43. The slide plate 6 is sleeved on the surface of the screw rod 71. The slide plate 6 cooperates with the screw rod 71. A motor 72 is installed at the bottom of the inner tube 4. The output shaft of the motor 72 is fixedly connected to the bottom of the rotating shaft 7, which is used to make the adsorbent 5 slide up and down, thereby facilitating the maintenance or replacement of the adsorbent 5 inside the inner tube 4.

[0023] Reference Figure 3 and Figure 4 In a preferred embodiment, a cover plate 3 is installed on the top of the inner cylinder 4, a handle 31 is fixedly connected to the top of the cover plate 3, two limit columns 32 are fixedly connected to the inner wall of the cover plate 3, two inclined grooves 45 are provided on the arc surface at the top of the inner cylinder 4, and limit grooves 46 are horizontally provided at the bottom ends of the two inclined grooves 45. The two limit columns 32 are respectively arranged inside the two inclined grooves 45 and the limit grooves 46, which are used to seal the top of the inner cylinder 4 and also facilitate the opening of the cover plate 3.

[0024] From the above description, it can be seen that the above-mentioned embodiments of the utility model achieve the following technical effects: in actual use, the sulfur dioxide in the coal gas can be filtered again through the setting of the adsorbent 5, and at the same time, the adsorbent 5 is slid up and down, so as to facilitate the replacement of the adsorbent 5 inside the inner cylinder 4, thereby improving the use effect of the device. When in use, the coal gas and then the waste gas are first connected to the air inlet pipe 14 through a pipeline, and then an alkaline solution or absorbent is placed inside the tower body 1 through the liquid inlet pipe 11. When in use, the waste gas is transported to the inside of the tower body 1 through the waste gas, so that the waste gas contacts the alkaline solution or absorbent inside the tower body 1, thereby absorbing the sulfur dioxide in the waste gas, and then the filtered waste gas will pass The exhaust gas passes through multiple connecting ports 41 on the surface of the inner cylinder 4, and at the same time, passes through the inside of the adsorbent 5 and is discharged through the exhaust pipe 15 at the bottom of the inner cylinder 4, so that the exhaust gas is thoroughly filtered, and the sulfur dioxide in the exhaust gas can be filtered more effectively. When maintaining the device, the alkaline solution or absorbent in the tower body 1 can be released and replaced through the drain pipe 12, and then the cover plate 3 is rotated to open, and the motor 72 is driven to drive the rotating shaft 7 and the screw 71 to rotate. With the cooperation of the slide plate 6, the adsorbent 5 will slide upward, so that the adsorbent 5 slides to the top, and the adsorbent 5 inside the inner cylinder 4 can be replaced, thereby improving the convenience of maintenance of the device.

[0025] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An absorption tower for coal gas, comprising a tower body (1), characterized in that: The bottom of the tower body (1) is arranged in a conical shape. A liquid inlet pipe (11) and a liquid discharge pipe (12) are installed on the surface of the tower body (1). The liquid inlet pipe (11) is arranged on the surface of the tower body (1) near the top, and the liquid discharge pipe (12) is arranged on the surface of the tower body (1) near the bottom. Valves (13) are installed on the surfaces of the liquid inlet pipe (11) and the liquid discharge pipe (12). An inner cylinder (4) is arranged inside the tower body (1). The upper and lower ends of the inner cylinder (4) are respectively sleeved on the upper and lower ends of the tower body (1). A circulation mechanism is arranged inside the tower body (1), and a filtering mechanism is arranged inside the inner cylinder (4).

2. The absorption tower for coal gas according to claim 1, characterized in that: A fixing ring (2) is sleeved on the outer surface of the tower body (1), and a plurality of first support frames (21) are fixedly connected to the surface of the fixing ring (2), and the plurality of first support frames (21) are evenly distributed in a ring shape.

3. The absorption tower for coal gas according to claim 1, characterized in that: The circulation mechanism comprises an air intake pipe (14), the air intake pipe (14) is fixedly connected to the surface of the tower body (1), the air intake pipe (14) is arranged near the bottom of the tower body (1), a plurality of communication openings (41) are opened on the surface of the inner cylinder (4), the plurality of communication openings (41) are evenly distributed in a ring shape, and the plurality of communication openings (41) are all arranged at the top of the tower body (1).

4. The absorption tower for coal gas according to claim 1, characterized in that: The filtering mechanism comprises an adsorbent (5), the adsorbent (5) is sleeved inside an inner cylinder (4), the adsorbent (5) vertically slides inside the inner cylinder (4), a sliding mechanism for vertically sliding the adsorbent (5) is provided inside the inner cylinder (4), an air outlet pipe (15) is fixedly connected to the surface of the inner cylinder (4), and the air outlet pipe (15) is arranged at the bottom of the tower body (1).

5. The absorption tower for coal gas according to claim 4, characterized in that: The sliding mechanism comprises a slide plate (6), two slide grooves (42) are vertically arranged on the inner arc surface of the inner cylinder (4), an upper support frame (43) and a lower support frame (44) are fixedly connected inside the inner cylinder (4), the adsorbent (5) is arranged between the upper support frame (43) and the lower support frame (44), the slide plate (6) is arranged inside the inner cylinder (4), and the slide plate (6) slides vertically between the upper support frame (43) and the lower support frame (44).

6. The absorption tower for coal gas according to claim 5, characterized in that: The slide plate (6) is arranged at the bottom of the adsorbent (5), and a connection port is arranged on the surface of the slide plate (6). Two limit blocks (61) are fixedly connected to the surface of the slide plate (6), and the two limit blocks (61) slide inside two slide grooves (42) respectively. A rotating shaft (7) is vertically rotatably connected inside the inner cylinder (4), and the top of the rotating shaft (7) is sleeved at the inner center of the lower support frame (44).

7. The absorption tower for coal gas according to claim 6, characterized in that: The top end of the rotating shaft (7) is fixedly connected with a screw rod (71), the top end of the screw rod (71) is sleeved at the inner center of the upper support frame (43), the slide plate (6) is sleeved on the surface of the screw rod (71), the slide plate (6) and the screw rod (71) are matched, and a motor (72) is installed at the bottom of the inner cylinder (4), and the output shaft of the motor (72) is fixedly connected to the bottom end of the rotating shaft (7).

8. The absorption tower for coal gas according to claim 1, characterized in that: A cover plate (3) is installed on the top of the inner cylinder (4), a handle (31) is fixedly connected to the top of the cover plate (3), two limit columns (32) are fixedly connected to the inner wall of the cover plate (3), two inclined grooves (45) are provided on the arc surface at the top of the inner cylinder (4), and limit grooves (46) are horizontally provided at the bottom ends of the two inclined grooves (45), and the two limit columns (32) are respectively arranged inside the two inclined grooves (45) and the limit grooves (46).

Images