Alkali-making carbonizer with efficient cleaning function

Abstract

The utility model relates to the technical field of alkali-making carbonization towers, and discloses an alkali-making carbonization tower with efficient cleaning, which comprises a carbonization tower body, a bottom plate is arranged at the bottom end of the carbonization tower body, four support columns are arranged at the bottom end of the bottom plate, a feeding mechanism is arranged on the end face of the bottom plate, and the feeding mechanism is used for feeding materials and cleaning the tower body. When the spiral pipe conveys materials, the radiation range is enlarged, the heat exchange area is increased, scabbing and blocking of the lower section of the carbonization tower are reduced, the operation condition of the carbonization tower is improved, meanwhile, when the spiral pipe serves as a carrier of cleaning liquid, the spiral pipe is of a layered structure, the inner wall side of the adjacent carbonization tower body is cleaned multiple times through the spiral pipe on each layer, and the cleaning effect is guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of alkali-making carbonizing towers, in particular to an alkali-making carbonizing tower with high cleaning efficiency. Background Art

[0002] Nowadays, ammonia mother liquor II is mostly used for cleaning carbonizing towers. Although ammonia mother liquor II has a high temperature, dissolves NOHCO3 quickly, has a short cleaning time and good cleaning effect, and can be used in groups of four or five towers, the process is complicated and the workload of tower inversion is large. Each time the soda ash industrial tower is inverted, the cleaning tower and the alkali making tower must be evacuated, which is actually equivalent to opening a new tower. Improper operation (liquid leakage from the top and bottom of the tower) has a great impact on system indicators and output. In view of the above situation, technical innovation is carried out on the basis of the existing high-efficiency cleaning alkali making carbonization tower.

[0003] At present, most of the domestic soda ash plants use the traditional hot ammonia mother liquor II cleaning tower process. Due to the process, the carbonization degree of the soda ash ammonia mother liquor II is relatively high, generally 110% to 115%, and the ability to dissolve scars is low, resulting in poor cleaning effect. Some soda ash plants are forced to switch to a water washing process because the cleaning effect after normal cleaning with ammonia mother liquor II cannot meet the normal production needs. The water washing process requires the use of steam, which increases the cost. At the same time, the auxiliary valves and gaskets of the tower body are seriously damaged, the system maintenance cost is increased and the production capacity is affected. The boiling tower produces a large amount of tower washing water, the system is difficult to replenish, the mother liquor is difficult to balance, and the environmental protection pressure is heavy.

[0004] Therefore, the above problems are solved by a alkali-making carbonizing tower with high cleaning efficiency. Summary of the invention

[0005] The object of the present invention is to provide a alkali-making carbonization tower with high cleaning efficiency to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: comprising a carbonization tower body, wherein a bottom plate is arranged at the bottom end of the carbonization tower body, four supporting columns are arranged at the bottom end of the bottom plate, and a feeding mechanism is provided on the end surface of the bottom plate, wherein the feeding mechanism is used for materials to enter and clean the tower body.

[0007] Preferably, the feeding mechanism comprises a feeding pipe, which is L-shaped and extends through the bottom plate to the interior of the carbonization tower body. A connecting pipe is provided at the discharge port of the feeding pipe, and a spiral tube is connected to the discharge end of the connecting pipe.

[0008] Preferably, the spiral tube extends in a spiral shape to the inner top of the carbonization tower body, and a plurality of tower caps are provided on the outer surface of the spiral tube.

[0009] Preferably, the tower cap comprises a hollow column and a semicircular cap, the hollow column is arranged on the outer surface of the spiral tube, the semicircular cap is connected to the hollow column, and the outer circumferential surface of the semicircular cap is provided with a plurality of holes.

[0010] Preferably, a discharge port is provided at the bottom end of the bottom plate, and the discharge port is located at one side of the feeding mechanism.

[0011] Preferably, an air inlet is provided on the outer circumferential surface of the carbonization tower body, a valve is provided at one end of the air inlet, and an exhaust hole is provided at the top of the carbonization tower body.

[0012] Technical effects and advantages of the present invention:

[0013] 1. When conveying materials, the spiral tube of the present invention increases the radiation range, increases the heat exchange area, reduces the scarring and blockage in the lower section of the carbonization tower, and improves the operating condition of the carbonization tower. At the same time, when used as a carrier of the cleaning liquid, the spiral tube has a layered structure, and each layer of the spiral tube cleans the inner wall side of the adjacent carbonization tower body for multiple times to ensure the cleaning effect.

[0014] 2. The spiral tube of the present invention sprays the cleaning liquid through the tower cap, which changes the flow direction of the cleaning liquid. The semicircular cap of the tower cap increases the radiation range of the cleaning liquid, and the cleaning liquid is sprayed on the inner wall of the carbonization tower body, thereby increasing the contact area between the cleaning liquid and the alkali scar and cleaning the alkali scar. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0016] Figure 2 It is a schematic diagram of the structure of the feeding mechanism of the present invention.

[0017] Figure 3 It is an enlarged schematic diagram of the structure at location A of the present invention.

[0018] In the figure: 1. Carbonization tower body; 2. Bottom plate; 3. Support column; 4. Discharge port; 5. Feed pipe; 6. Air inlet; 7. Connecting pipe; 8. Spiral pipe; 9. Tower cap. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described 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 the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] At present, most of the domestic soda ash plants use the traditional hot ammonia mother liquor II cleaning tower process. Due to the process, the carbonization degree of the soda ash ammonia mother liquor II is relatively high, generally 110% to 115%, and the ability to dissolve scars is low, resulting in poor cleaning effect.

[0021] Embodiment 1

[0022] The present invention provides Figures 1 to 3 An alkali-making carbonization tower with high cleaning efficiency shown in the figure comprises a carbonization tower body 1, a bottom end of which is provided with a bottom plate 2, four support columns 3 are provided at the bottom end of the bottom plate 2, and a feeding mechanism is provided on the end face of the bottom plate 2, and the feeding mechanism is used for materials to enter and clean the tower body.

[0023] When in use, the feeding mechanism is used to transport materials into the carbonization tower body 1. Meanwhile, when not used to transport materials, the inside of the feeding mechanism is used to transport cleaning liquid for cleaning the tower body.

[0024] The feeding mechanism includes a feeding pipe 5 , which is L-shaped and passes through the bottom plate 2 and extends to the interior of the carbonization tower body 1 . A connecting pipe 7 is provided at the discharge port of the feeding pipe 5 , and a spiral tube 8 is connected to the discharge end of the connecting pipe 7 .

[0025] The spiral tube 8 extends in a spiral shape to the inner top of the carbonization tower body 1 , and a plurality of tower caps 9 are arranged on the outer surface of the spiral tube 8 .

[0026] The tower cap 9 includes a hollow column and a semicircular cap. The hollow column is arranged on the outer surface of the spiral tube 8. The semicircular cap is connected to the hollow column. The outer circumferential surface of the semicircular cap is provided with a plurality of holes.

[0027] When in use, the feed pipe 5 is connected to an external conveying mechanism to convey the material to the interior of the carbonization tower body 1 through the feed pipe 5. The feed pipe 5 conveys the material to the spiral tube 8 through the connecting tube 7. The height of the spiral tube 8 is located inside the carbonization tower body 1. The height of the spiral tube 8 is lower than the carbonization tower body 1. The material flows out through the tower cap 9 of the spiral tube 8.

[0028] The hollow column of the tower cap 9 is connected to the spiral tube 8. The material flows into the interior of the semicircular cap through the hollow column, and then flows out through the holes of the semicircular cap to the interior of the carbonization tower body 1. The holes of the semicircular cap are used to diffuse the outflow area of ​​the material. Because the external conveying mechanism needs sufficient pressure during the conveying process to the interior of the spiral tube 8, the conveying mechanism is pressurized to convey the material to the top of the spiral tube 8, and the material is ejected through the holes of the semicircular cap, thereby increasing the radiation range.

[0029] An air inlet 6 is provided on the outer circumferential surface of the carbonization tower body 1 , and a valve is provided at one end of the air inlet 6 .

[0030] When in use, the air inlet 6 is used to transport gas to the inside of the carbonization tower body 1, and transport the concentrated gas synthesized from the external ammonia device into the bottom of the carbonization tower body 1. The material and the concentrated gas are contacted and reacted in countercurrent in the tower to generate sodium bicarbonate slurry. Because the material flows out through the tower cap 9 of the spiral tube 8, the material is sprayed out through the holes of the semicircular cap, which increases the radiation range, increases the heat exchange area, reduces the scarring and blockage of the lower section of the carbonization tower, and improves the operating condition of the carbonization tower.

[0031] A discharge port 4 is provided at the bottom end of the bottom plate 2, and the discharge port 4 is located at one side of the feeding mechanism.

[0032] An exhaust hole is provided at the top of the carbonization tower body 1 .

[0033] When in use, the reacted material is discharged through the discharge port 4, received by external equipment and pressed to the filtration section, and flows to the next section. The gas entering from the air inlet 6 is discharged through the exhaust hole opened at the top of the carbonization tower body 1 after reaction.

[0034] Embodiment 2

[0035] Alkali scars will be formed in the carbonization tower during the production process. When there are too many alkali scars, the service life of the equipment will be shortened, the output will be affected, and the risk factors of production instability will be increased. Therefore, it is necessary to clean the alkali scars regularly to avoid the increase of unstable risk factors.

[0036] When it is necessary to clean the alkali scars, the feeding mechanism is used to transport the cleaning liquid for cleaning the carbonization tower body 1. The external conveying mechanism transports the cleaning liquid to the feeding pipe 5. The feeding pipe 5 transports the cleaning liquid to the spiral tube 8 through the connecting pipe 7. The spiral tube 8 sprays the cleaning liquid through the tower cap 9. Because the height of the spiral tube 8 can extend to the top of the carbonization tower body 1, and the spiral tube 8 is spirally arranged close to the inner wall side of the carbonization tower body 1, the spiral tube 8 is a layered structure. The spiral tube 8 of each layer cleans the inner wall side of the adjacent carbonization tower body 1 multiple times to ensure the cleaning effect. The tower cap 9 changes the flow direction of the cleaning liquid. The semicircular cap of the tower cap 9 increases the radiation range of the cleaning liquid, and the cleaning liquid is sprayed on the inner wall of the carbonization tower body 1 to clean the alkali scars. The cleaning liquid is discharged through the discharge port 4. When passing through the discharge port 4, the discharge port 4 is cleaned. In the process of conveying the cleaning liquid, the spiral tube 8 also cleans the side wall inside the spiral tube 8.

[0037] Therefore, when conveying materials, the spiral tube 8 increases the radiation range, increases the heat exchange area, reduces the clogged and blocked lower section of the carbonization tower, and improves the operating condition of the carbonization tower. At the same time, when used as a carrier of the cleaning liquid, the spiral tube 8 has a layered structure, and each layer of the spiral tube 8 cleans the inner wall side of the adjacent carbonization tower body 1 multiple times to ensure the cleaning effect.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A highly efficient cleaning carbonizing tower for alkali production, characterized in that: The carbonization tower body (1) comprises a bottom plate (2) disposed at the bottom end of the carbonization tower body (1), four support columns (3) disposed at the bottom end of the bottom plate (2), and a feeding mechanism is provided on the end surface of the bottom plate (2), the feeding mechanism being used for materials to enter and clean the tower body; The feeding mechanism comprises a feeding pipe (5), the feeding pipe (5) is L-shaped, the feeding pipe (5) penetrates the bottom plate (2) and extends to the interior of the carbonization tower body (1), the discharge port of the feeding pipe (5) is provided with a connecting pipe (7), and the discharge end of the connecting pipe (7) is connected to a spiral tube (8).

2. The highly efficient cleaning carbonization tower for alkali production according to claim 1, characterized in that: The spiral tube (8) extends in a spiral shape to the inner top of the carbonization tower body (1), and a plurality of tower caps (9) are arranged on the outer surface of the spiral tube (8).

3. The highly efficient cleaning carbonization tower for alkali production according to claim 2, characterized in that: The tower cap (9) comprises a hollow column and a semicircular cap, wherein the hollow column is arranged on the outer surface of the spiral tube (8), the semicircular cap is connected to the hollow column, and the outer circumferential surface of the semicircular cap is provided with a plurality of holes.

4. The highly efficient cleaning carbonization tower for alkali production according to claim 1, characterized in that: A discharge port (4) is provided at the bottom end of the bottom plate (2), and the discharge port (4) is located on one side of the feeding mechanism.

5. The highly efficient cleaning carbonization tower for alkali production according to claim 1, characterized in that: An air inlet (6) is provided on the outer circumferential surface of the carbonization tower body (1), a valve is provided at one end of the air inlet (6), and an exhaust hole is provided at the top of the carbonization tower body (1).

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