A dust removal device for fine desulfurization pretreatment of blast furnace gas

Abstract

This utility model belongs to the field of dust removal technology, specifically a dust removal device for the pretreatment of blast furnace gas fine desulfurization, including a base; a treatment tower is fixedly connected to the top of the base; an inlet pipe is fixedly connected to the outer circular wall of the treatment tower; an outlet pipe is fixedly connected to the top of the treatment tower; a catalytic filter layer is provided inside the treatment tower; a supplementary catalytic layer is provided inside the treatment tower; the catalytic filter layer is located directly below the supplementary catalytic layer; a dust removal component is provided inside the treatment tower; the dust removal component is used to clean the treatment tower. This invention aims to overcome the shortcomings of existing technologies and solve the problem that during the dust removal process of blast furnace gas dust removal equipment, some dust remains and adheres to the inner wall of the dust removal equipment, resulting in a reduced dust removal effect and increased resistance when the gas passes through, thus increasing the energy consumption of the entire dust removal system.

Description

Technical Field

[0001] This utility model belongs to the field of dust removal technology, specifically a dust removal device for fine desulfurization pretreatment of blast furnace gas. Background Technology

[0002] Dust removal equipment for blast furnace gas pretreatment is a key link in the gas purification process. Its main purpose is to remove large particulate dust from the gas, creating conditions for subsequent fine dust removal and gas utilization. It also enables gas emissions to meet environmental protection requirements. It is an indispensable piece of equipment in the steel industry, reducing particulate matter and dust emissions from the gas, protecting the environment, and making full use of gas energy. The clean blast furnace gas after dust removal can be used as industrial or domestic fuel gas for hot blast stoves in ironmaking plants, heating furnaces in steel rolling mills, boilers in power plants, and coking ovens in coking plants.

[0003] In the existing technology, during the dust removal process of blast furnace gas, some dust will remain and adhere to the inner wall of the dust removal equipment, which will reduce the dust removal effect of blast furnace gas and increase the resistance when the gas passes through, thereby increasing the energy consumption of the entire dust removal system.

[0004] Therefore, this utility model provides a dust removal device for the fine desulfurization pretreatment of blast furnace gas. Utility Model Content

[0005] To address the shortcomings of existing technologies and solve the problem that some dust remains and adheres to the inner wall of the blast furnace gas dust removal equipment during the dust removal process, resulting in reduced dust removal efficiency and increased resistance when the gas passes through, thus increasing the energy consumption of the entire dust removal system.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: The dust removal equipment for fine desulfurization pretreatment of blast furnace gas according to this utility model includes a base; a treatment tower is fixedly connected to the top of the base; an air inlet pipe is fixedly connected to the outer circular wall of the treatment tower; an air outlet pipe is fixedly connected to the top of the treatment tower; a catalytic filter layer is provided inside the treatment tower; a supplementary catalytic layer is provided inside the treatment tower; the catalytic filter layer is located directly below the supplementary catalytic layer; a dust removal component is provided inside the treatment tower; the dust removal component is used to perform dust removal work on the treatment tower.

[0007] Preferably, the dust removal assembly includes a first scraper and a power unit; the first scraper is slidably connected to the inner circular wall of the treatment tower; a pair of first sliding grooves are provided on the inner circular wall of the treatment tower; a first slider is slidably connected in each of the pair of first sliding grooves; and the pair of first sliders are respectively fixed to the outer circular wall of the first scraper.

[0008] Preferably, the power unit includes a first motor; the first motor is fixedly connected inside the base; the output end of the first motor is provided with a first lead screw; one end of the first lead screw passes through the base and is rotatably connected inside the processing tower; a first rotating ring is connected to the first lead screw through a nut pair; a set of first connecting plates is fixedly connected to the outer circular wall of the first rotating ring; one end of each set of first connecting plates is fixedly connected to the inner circular wall of the first scraper.

[0009] Preferably, the catalytic filter layer is slidably connected inside the treatment tower; a set of filter bags is fixedly connected to the bottom end of the catalytic filter layer; a first ring is fixedly connected inside the treatment tower; a set of elastic telescopic rods is fixedly connected to the bottom end of the first ring; one end of each set of elastic telescopic rods penetrates the catalytic filter layer; a transmission component is provided inside the treatment tower; the transmission component is used to drive the catalytic filter layer to move.

[0010] Preferably, the transmission component includes a first arc-shaped block; a pair of first arc-shaped blocks are fixedly connected to the bottom end of the catalytic filter layer; a second rotating ring is rotatably connected to the inner circular wall of the treatment tower; a pair of connecting columns are fixedly connected to the top of the second rotating ring; a second arc-shaped block is fixedly connected to the top of each pair of connecting columns; a pair of second arc-shaped blocks are slidably connected to the top of the first arc-shaped block; a first turntable is fixedly connected to the top of the first lead screw; a set of second connecting plates is fixedly connected to the outer circular wall of the first turntable; one side of each set of second connecting plates is fixedly connected to the inner circular wall of the second rotating ring.

[0011] Preferably, a pair of grooves are provided at the top of the base, and the grooves extend through the bottom of the processing tower; a set of third connecting plates are fixedly connected to the first lead screw; and a cleaning brush is fixedly connected to the bottom of each set of third connecting plates.

[0012] Preferably, the base has a collection frame inside, and one end of the collection frame passes through the base; a handle is fixed to one side of the collection frame.

[0013] Preferably, a temperature display device is fixedly connected to the outer circular wall of the processing tower.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. The dust removal equipment for fine desulfurization pretreatment of blast furnace gas described in this utility model consists of a base to which a treatment tower is fixedly connected. An inlet pipe is installed on the outside of the treatment tower, allowing the blast furnace gas to enter the tower. The catalytic filter layer then filters the dust in the blast furnace gas and hydrolyzes the organic sulfur in the gas. A supplementary catalytic layer is added for further hydrolysis of organic sulfur. After these two steps, the blast furnace gas is discharged from the treatment tower through an outlet pipe. The dust removal components installed inside the treatment tower can clean the inside of the tower to prevent dust from affecting the working efficiency of the tower.

[0016] 2. The dust removal equipment for blast furnace gas fine desulfurization pretreatment described in this utility model, driven by the transmission component, causes the catalytic filter layer to move upward a short distance, and then rebounds due to a set of elastic telescopic rods, causing the filter bag at the bottom of the catalytic filter layer to shake. This shakes off the dust adhering to the filter bag, preventing the filter bag from becoming clogged and causing the equipment to malfunction. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is the front view of this utility model;

[0019] Figure 3 This is a partial structural diagram of the present invention;

[0020] Figure 4 This is a partial structural schematic diagram of the present invention;

[0021] Figure 5 yes Figure 4 Enlarged view of A in the middle;

[0022] Figure 6 yes Figure 4 A magnified view of B in the middle.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Base; 2. Processing tower; 3. Inlet pipe; 4. Outlet pipe; 5. Catalytic filter layer; 6. Supplementary catalytic layer; 7. First scraper; 8. First chute; 9. First slider; 10. First motor; 11. First lead screw; 12. First rotating ring; 13. First connecting plate; 14. Filter bag; 15. First ring; 16. Elastic telescopic rod; 17. First arc-shaped block; 18. Connecting column; 19. Second arc-shaped block; 20. First turntable; 21. Second connecting plate; 22. Groove; 23. Third connecting plate; 24. Cleaning brush; 25. Collection frame; 26. Handle; 27. Temperature display device; 28. Second rotating ring. Detailed Implementation

[0025] To explain in detail the technical content, structural features, objectives, and effects of the technical solution, the following description is provided in conjunction with specific embodiments and accompanying drawings.

[0026] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0027] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0028] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0029] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0030] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0031] Similar to the understanding in the Examination Guidelines, in this application, expressions such as "greater than," "less than," and "exceeding" are understood to exclude the stated number; expressions such as "above," "below," and "within" are understood to include the stated number. Furthermore, in the description of the embodiments in this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times," unless otherwise explicitly specified.

[0032] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0033] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0034] like Figures 1 to 6 As shown in the embodiment of this utility model, a dust removal device for blast furnace gas fine desulfurization pretreatment includes a base 1; a treatment tower 2 is fixedly connected to the top of the base 1; an inlet pipe 3 is fixedly connected to the outer circular wall of the treatment tower 2; an outlet pipe 4 is fixedly connected to the top of the treatment tower 2; a catalytic filter layer 5 is provided inside the treatment tower 2; a supplementary catalytic layer 6 is provided inside the treatment tower 2; the catalytic filter layer 5 is located directly below the supplementary catalytic layer 6; a dust removal assembly is provided inside the treatment tower 2; the dust removal assembly is used to perform dust removal work on the treatment tower 2. During operation, the air... A base 1 is installed, and the top of the base 1 is fixed to the treatment tower 2. An inlet pipe 3 is installed on the outside of the treatment tower 2. The inlet pipe allows the blast furnace gas to enter the interior of the treatment tower 2. Then, the catalytic filter layer 5 filters the dust in the blast furnace gas and hydrolyzes the organic sulfur in the catalytic gas. A supplementary catalytic layer 6 is used for further hydrolysis of the organic sulfur. After these two steps, the blast furnace gas will be discharged from the treatment tower 2 through the outlet pipe 4. The dust removal component installed inside the treatment tower 2 can perform dust removal work inside the treatment tower 2 to prevent dust from affecting the working efficiency of the treatment tower 2.

[0035] The dust removal assembly includes a first scraper 7 and a power unit; the first scraper 7 is slidably connected to the inner circular wall of the processing tower 2; a pair of first sliding grooves 8 are provided on the inner circular wall of the processing tower 2; a first slider 9 is slidably connected in each of the pair of first sliding grooves 8; the pair of first sliders 9 are respectively fixed to the outer circular wall of the first scraper 7. During operation, by setting the first scraper 7 on the inner circular wall of the processing tower 2, the power unit can drive the first scraper 7 to form a reciprocating motion on the inner circular wall of the processing tower 2 to scrape off the dust adhering to the inner circular wall of the processing tower 2. The pair of first sliding grooves 8 and the first sliders 9 provided on the inner circular wall of the processing tower 2 can restrict the first scraper 7 and prevent the first scraper 7 from rotating.

[0036] The power unit includes a first motor 10; the first motor 10 is fixed inside the base 1; the output end of the first motor 10 is provided with a first lead screw 11; one end of the first lead screw 11 passes through the base 1 and is rotatably connected inside the processing tower 2; a first rotating ring 12 is connected to the first lead screw 11 through a nut pair; a set of first connecting plates 13 are fixed to the outer circular wall of the first rotating ring 12; one end of each set of first connecting plates 13 is fixed to the inner circular wall of the first scraper 7. During operation, by fixing the first motor 10 inside the base 1, when the operator starts the first motor 10, the first lead screw 11 will drive the first rotating ring 12 and the first connecting plate 13 to rotate inside the processing tower 2, thereby driving the first scraper 7 to form a reciprocating motion inside the processing tower 2 to complete the dust removal work of the processing tower 2.

[0037] The catalytic filter layer 5 is slidably connected inside the treatment tower 2; a set of filter bags 14 are fixedly connected to the bottom end of the catalytic filter layer 5; a first ring 15 is fixedly connected inside the treatment tower 2; a set of elastic telescopic rods 16 are fixedly connected to the bottom end of the first ring 15; one end of each set of elastic telescopic rods 16 penetrates the catalytic filter layer 5; a transmission component is provided inside the treatment tower 2; the transmission component is used to drive the catalytic filter layer 5 to move. During operation, the catalytic filter layer 5 will move upward a short distance under the drive of the transmission component, and then rebound due to the elastic telescopic rods 16, causing the filter bags 14 at the bottom end of the catalytic filter layer 5 to shake. This can shake off the dust adhering to the filter bags 14, preventing the filter bags 14 from becoming clogged and causing the equipment to malfunction.

[0038] The transmission component includes a first arc-shaped block 17; a pair of first arc-shaped blocks 17 are fixedly connected to the bottom end of the catalytic filter layer 5; a second rotating ring 28 is rotatably connected to the inner circular wall of the treatment tower 2; a pair of connecting columns 18 are fixedly connected to the top of the second rotating ring 28; a pair of second arc-shaped blocks 19 are fixedly connected to the top of the pair of connecting columns 18; a pair of second arc-shaped blocks 19 are slidably connected to the top of the first arc-shaped block 17; a first turntable 20 is fixedly connected to the top of the first lead screw 11; a set of second connecting plates are fixedly connected to the outer circular wall of the first turntable 20. 21; One side of each of the second connecting plates 21 is fixed to the inner circular wall of the second rotating ring 28. During operation, a pair of first arc-shaped blocks 17 are fixed to the bottom of the catalytic filter layer 5, and the top of the first screw 11 is fixed to the first turntable 20. When the first screw 11 drives the first turntable 20 to rotate, a pair of second arc-shaped blocks 19 will lift the first arc-shaped blocks 17 and then drop them downwards. The elastic telescopic rod 16 can then cause the catalytic filter layer 5 to shake, shaking off the dust adhering to the filter bag 14, thus completing the cleaning of the filter bag 14.

[0039] The base 1 has a pair of grooves 22 at its top end, and the grooves 22 penetrate the bottom end of the processing tower 2; a set of third connecting plates 23 are fixedly connected to the first lead screw 11; a cleaning brush 24 is fixedly connected to the bottom end of each set of third connecting plates 23. During operation, by opening a pair of grooves 22 at the top end of the base 1, the dust above will fall onto the base 1, or fall directly into the interior of the base 1 from the grooves 22. The cleaning brush 24 can sweep the dust inside the processing tower 2 into the interior of the base 1. Since the temperature inside the processing tower 2 is high, the cleaning brush 24 is made of PBT filament.

[0040] The base 1 is provided with a collection frame 25 inside, and one end of the collection frame 25 passes through the base 1; a handle 26 is fixed to one side of the collection frame 25. During operation, dust can be collected by setting the collection frame 25 inside the base 1, which is convenient for subsequent processing.

[0041] A temperature display device 27 is fixedly connected to the outer circular wall of the processing tower 2. During operation, the temperature display device 27 on the outer circular wall of the processing tower 2 allows the staff to know the internal temperature of the processing tower 2.

[0042] Working principle: A base 1 is installed, and the top of the base 1 is fixed to the treatment tower 2. An inlet pipe 3 is installed on the outside of the treatment tower 2, allowing the blast furnace gas to enter the treatment tower 2. The catalytic filter layer 5 then filters the dust in the blast furnace gas and hydrolyzes the organic sulfur in the catalytic gas. A catalytic layer 6 is added for further hydrolysis of the organic sulfur. After these two steps, the blast furnace gas is discharged from the treatment tower 2 through the outlet pipe 4. A dust removal component inside the treatment tower 2 cleans the interior of the tower, preventing dust from affecting its efficiency. A first scraper 7 is installed on the inner circular wall of the treatment tower 2. The unit can drive the first scraper 7 to reciprocate on the inner circular wall of the treatment tower 2, scraping away the dust adhering to the inner circular wall of the treatment tower 2. A pair of first sliding grooves 8 and a first slider 9 opened on the inner circular wall of the treatment tower 2 can restrict the first scraper 7 to prevent the first scraper 7 from rotating. By fixing the first motor 10 inside the base 1, when the operator starts the first motor 10, the first lead screw 11 will drive the first rotating ring 12 and the first connecting plate 13 to rotate inside the treatment tower 2, thereby driving the first scraper 7 to reciprocate inside the treatment tower 2 to complete the dust cleaning work of the treatment tower 2. The catalytic filter layer 5 moves upward a short distance and then rebounds due to a set of elastic telescopic rods 16, causing the filter bag 14 at the bottom of the catalytic filter layer 5 to shake. This shakes off the dust adhering to the filter bag 14, preventing it from becoming clogged and causing the equipment to malfunction. By fixing a pair of first arc-shaped blocks 17 to the bottom of the catalytic filter layer 5 and fixing the top of the first lead screw 11 to the first turntable 20, when the first lead screw 11 drives the first turntable 20 to rotate, a pair of second arc-shaped blocks 19 will lift the first arc-shaped blocks 17 and then drop them downwards. The elastic telescopic rods 16 can then lift the catalytic filter layer 5. The system generates a shaking effect to shake off the dust adhering to the filter bag 14, thus completing the cleaning of the filter bag 14. By opening a pair of grooves 22 at the top of the base 1, the dust above will fall onto the base 1, or directly fall into the interior of the base 1 from the grooves 22. The cleaning brush 24 can sweep the dust inside the treatment tower 2 into the interior of the base 1. Since the temperature inside the treatment tower 2 is high, the cleaning brush 24 is made of PBT filament. By setting a collection frame 25 inside the base 1, the dust can be collected for subsequent processing. By setting a temperature display device 27 on the outer circular wall of the treatment tower 2, the staff can easily know the internal temperature of the treatment tower 2.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dust removal device for fine desulfurization pretreatment of blast furnace gas, characterized in that: The system includes a base (1); a processing tower (2) is fixedly connected to the top of the base (1); an air inlet pipe (3) is fixedly connected to the outer circular wall of the processing tower (2); an air outlet pipe (4) is fixedly connected to the top of the processing tower (2); a catalytic filter layer (5) is provided inside the processing tower (2); a supplementary catalytic layer (6) is provided inside the processing tower (2); the catalytic filter layer (5) is located directly below the supplementary catalytic layer (6); a dust removal assembly is provided inside the processing tower (2); the dust removal assembly is used to perform dust removal work on the processing tower (2).

2. The dust removal equipment for fine desulfurization pretreatment of blast furnace gas according to claim 1, characterized in that: The dust removal assembly includes a first scraper (7) and a power unit; the first scraper (7) is slidably connected to the inner circular wall of the treatment tower (2); a pair of first sliding grooves (8) are provided on the inner circular wall of the treatment tower (2); a first slider (9) is slidably connected in each pair of first sliding grooves (8); the pair of first sliders (9) are respectively fixed to the outer circular wall of the first scraper (7).

3. The dust removal equipment for fine desulfurization pretreatment of blast furnace gas according to claim 2, characterized in that: The power unit includes a first motor (10); the first motor (10) is fixed inside the base (1); the output end of the first motor (10) is provided with a first lead screw (11); one end of the first lead screw (11) passes through the base (1) and is rotatably connected inside the processing tower (2); a first rotating ring (12) is connected to the first lead screw (11) through a nut pair; a set of first connecting plates (13) is fixed on the outer circular wall of the first rotating ring (12); one end of each set of first connecting plates (13) is fixed on the inner circular wall of the first scraper (7).

4. The dust removal equipment for fine desulfurization pretreatment of blast furnace gas according to claim 3, characterized in that: The catalytic filter layer (5) is slidably connected inside the processing tower (2); a set of filter bags (14) is fixedly connected to the bottom end of the catalytic filter layer (5); a first ring (15) is fixedly connected inside the processing tower (2); a set of elastic telescopic rods (16) is fixedly connected to the bottom end of the first ring (15); one end of each set of elastic telescopic rods (16) penetrates the catalytic filter layer (5); a transmission component is provided inside the processing tower (2); the transmission component is used to drive the catalytic filter layer (5) to move.

5. The dust removal equipment for fine desulfurization pretreatment of blast furnace gas according to claim 4, characterized in that: The transmission component includes a first arc-shaped block (17); a pair of first arc-shaped blocks (17) are fixedly connected to the bottom end of the catalytic filter layer (5); a second rotating ring (28) is rotatably connected to the inner circular wall of the treatment tower (2); a pair of connecting columns (18) are fixedly connected to the top end of the second rotating ring (28); a pair of second arc-shaped blocks (19) are fixedly connected to the top end of the pair of connecting columns (18); a pair of second arc-shaped blocks (19) are slidably connected to the top end of the first arc-shaped block (17); a first turntable (20) is fixedly connected to the top end of the first lead screw (11); a set of second connecting plates (21) are fixedly connected to the outer circular wall of the first turntable (20); one side of the set of second connecting plates (21) is fixedly connected to the inner circular wall of the second rotating ring (28).

6. The dust removal equipment for fine desulfurization pretreatment of blast furnace gas according to claim 5, characterized in that: The base (1) has a pair of grooves (22) at the top, and the grooves (22) penetrate the bottom of the processing tower (2); a set of third connecting plates (23) are fixedly connected to the first lead screw (11); a cleaning brush (24) is fixedly connected to the bottom of each set of third connecting plates (23).

7. The dust removal equipment for fine desulfurization pretreatment of blast furnace gas according to claim 6, characterized in that: The base (1) has a collection frame (25) inside, and one end of the collection frame (25) passes through the base (1); a handle (26) is fixedly connected to one side of the collection frame (25).

8. The dust removal equipment for fine desulfurization pretreatment of blast furnace gas according to claim 7, characterized in that: A temperature display device (27) is fixedly connected to the outer circular wall of the processing tower (2).

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