Raw material gas pretreatment device with high-efficiency desulfurization function

Abstract

The utility model relates to a raw material gas pretreatment device with high -efficient desulfurization function applied to raw material gas treatment technical field, can drive the first scraper to rotate through the controller opening servo motor drive screw rod in the raw material gas pretreatment of desulfurizing tower body, carry out the scraping and cleaning to desulfurizing tower body inner wall and bottom wall, and the first scraper is embedded between two second scrapers, thereby will drive second scraper synchronous rotation when rotating, second scraper is synchronous with the first scraper again through the first sleeve, vertically reciprocating movement on the surface of screw rod, make second scraper to desulfurizing tower body inner wall do again up and down scraping and cleaning processing, make the dirt of desulfurizing tower body inner wall remaining through first scraper and second scraper double cleaning, and in the cleaning process, the water is transported to the spraying equipment from the water inlet pipe through the feed pump, and the water flow is sprayed to flush the inner wall.

Description

Technical Field

[0001] This utility model relates to a raw gas pretreatment device, and in particular to a raw gas pretreatment device with efficient desulfurization function applied in the field of raw gas treatment technology. Background Technology

[0002] In chemical production, energy utilization, and other fields, raw gas often contains sulfide impurities. These sulfides not only corrode subsequent production equipment, shortening its service life and increasing maintenance costs, but also affect product quality. In some applications with strict environmental protection requirements, the sulfide emissions from the combustion of untreated raw gas can cause environmental pollution.

[0003] Chinese patent CN221514029U discloses a raw gas desulfurization absorption tower. The utility model utilizes the setting of lifting components and storage components. Through the cooperation of the winding wheel, reversing wheel, lifting rope, mounting plate, storage bag and sealing cloth, tools can be delivered to the side of the maintenance personnel without the need for maintenance personnel to land, which improves the convenience of maintenance work on the upper part of the desulfurization absorption tower.

[0004] Existing desulfurization towers are not equipped with descaling devices during use, which can easily cause scale to form on the inner wall of the tower when the desulfurizing agent is stored at the bottom of the tower. Scale reduces the contact area of ​​the desulfurizing agent, resulting in a decrease in desulfurization efficiency. Utility Model Content

[0005] The technical problem that this utility model aims to solve in view of the above-mentioned prior art is that existing desulfurization towers do not have descaling equipment during use, which easily leads to scale formation on the inner wall of the tower when the desulfurizing agent is stored at the bottom of the tower. Scale formation reduces the contact area of ​​the desulfurizing agent, resulting in a decrease in desulfurization efficiency.

[0006] To address the aforementioned problems, this utility model provides a raw gas pretreatment device with high-efficiency desulfurization function, comprising a desulfurization tower body with supporting legs at the bottom, a support plate at the bottom of the desulfurization tower body, a servo motor fixedly connected to the support plate, a lead screw extending into the desulfurization tower body connected to the output end of the servo motor, third rings symmetrically sleeved on the surface of the lead screw and fixed to the surface of the lead screw, first scrapers symmetrically fixedly connected to the surfaces of the two third rings, and the first scrapers contacting the inner side wall and bottom wall of the desulfurization tower body, a first ring threadedly connected to the surface of the lead screw between the two third rings, an annular groove formed on the surface of the first ring, a second ring sleeved on the surface of the annular groove, multiple support rods fixedly fixedly connected annularly at equal intervals on the side wall of the second ring, two symmetrical second scrapers fixedly connected to the end of the support rod away from the second ring, two first scrapers embedded between the two second scrapers and in contact with the surfaces of the second scrapers at both ends, the second scrapers contacting the inner wall of the desulfurization tower body, and a spraying device installed on the inner wall of the desulfurization tower body above the first scrapers.

[0007] In the aforementioned raw gas pretreatment device, the inner wall and bottom wall of the desulfurization tower body are cleaned simultaneously by the support legs and the second scraper, thus preventing scale buildup on the inner wall of the desulfurization tower body.

[0008] As a further improvement of this application, a drain outlet is provided at the bottom of the side wall of the desulfurization tower body, and a solenoid valve is installed in the drain outlet.

[0009] As a further improvement of this application, a water inlet pipe is fixedly connected to one end of the spraying equipment, and a water inlet corresponding to the water inlet pipe is opened on the side wall of the desulfurization tower body. A conveying pipe is connected to the water inlet by internal thread, and the conveying pipe is clamped to the water inlet pipe through a joint. The end of the conveying pipe away from the water inlet is connected to a water source through a supply pump.

[0010] As a further improvement of this application, a drain outlet is provided at the bottom of the desulfurization tower body, and a sealing plug is connected to the drain outlet by screws.

[0011] As another improvement of this application, a magnetic baffle is fixedly connected to the bottom of the desulfurization tower body at the outer ring of the sewage outlet, and a foldable water-blocking cloth is installed at the bottom of the baffle.

[0012] As a further improvement to this application, the bottom end of the water-blocking cloth is symmetrically and fixedly connected with magnetic blocks corresponding to the bottom cross section of the first ring, and the magnetic blocks and the bottom cross section of the baffle attract each other.

[0013] As a further improvement to this application, a controller for controlling a servo motor, a solenoid valve, and a supply pump is fixedly connected to the desulfurization tower body.

[0014] In summary, during the pretreatment of raw gas in the desulfurization tower body, the controller can activate the servo motor to drive the lead screw to rotate the first scraper. The third ring is located on the unthreaded part of the lead screw surface, scraping and cleaning the inner wall and bottom wall of the desulfurization tower body. The first scraper is embedded between two second scrapers, so that the rotation will drive the second scrapers to rotate synchronously. While rotating synchronously with the first scraper, the second scraper moves vertically back and forth on the surface of the lead screw through the first ring, so that the second scraper can perform up and down scraping treatment on the inner wall of the desulfurization tower body again. This allows the dirt remaining on the inner wall of the desulfurization tower body to be cleaned by the double cleaning of the first and second scrapers, keeping the inner wall clean at all times. During the cleaning process, the delivery pipe delivers water from the inlet pipe to the spraying equipment through the supply pump, spraying water to rinse the inner wall. Attached Figure Description

[0015] Figure 1 This is an isometric view of the desulfurization tower according to the first embodiment of this application;

[0016] Figure 2This is a schematic diagram of the internal structure of the desulfurization tower according to the first embodiment of this application;

[0017] Figure 3 For this application Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a schematic diagram of the cleaning mechanism according to the first embodiment of this application;

[0019] Figure 5 This is a schematic diagram of the sewage outlet structure according to the second embodiment of this application;

[0020] Figure 6 This is a schematic diagram of the sealing plug structure according to the second embodiment of this application;

[0021] Figure 7 This is a schematic diagram of the water-blocking cloth structure according to the second embodiment of this application.

[0022] Explanation of the labels in the diagram:

[0023] 11. Desulfurization tower body; 2. Drain outlet; 3. Support leg; 4. Servo motor; 5. Conveying pipe; 6. Sewage outlet; 7. Spraying equipment; 8. Lead screw; 9. First scraper; 10. Second scraper; 11. Support rod; 12. First collar; 13. Second collar; 14. Water inlet; 15. Water inlet pipe; 16. Annular groove; 17. Baffle; 18. Water-blocking cloth; 19. Magnetic block; 20. Sealing plug; 21. Screw; 22. Third collar. Detailed Implementation

[0024] The two embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0025] First implementation method:

[0026] Figures 1-4This invention discloses a feed gas pretreatment device with high-efficiency desulfurization function, comprising a desulfurization tower body 1 with a support leg 3 at the bottom, a support plate at the bottom of the desulfurization tower body 1, a servo motor 4 fixedly connected to the support plate, and a lead screw 8 extending into the desulfurization tower body 1 connected to the output end of the servo motor 4. Third rings 22, fixed to the surface of the lead screw 8, are symmetrically sleeved on the upper and lower surfaces of the two third rings 22. First scrapers 9 are symmetrically fixedly connected to the surfaces of the two third rings 22, and the first scrapers 9 contact the inner sidewall and bottom wall of the desulfurization tower body 1. The surface of the lead screw 8 is located between the two third rings 22. A first collar 12 is threadedly connected. An annular groove 16 is formed on the surface of the first collar 12. A second collar 13 is fitted on the surface of the annular groove 16. Multiple support rods 11 are fixedly connected at equal intervals on the side wall of the second collar 13. Two symmetrical second scrapers 10 are fixedly connected to the end of the support rod 11 away from the second collar 13. Two first scrapers 9 are embedded between the two second scrapers 10 and are in contact with the surfaces of the two second scrapers 10 at both ends. The second scrapers 10 are in contact with the inner wall of the desulfurization tower body 1. A spraying device 7 is installed on the inner wall of the desulfurization tower body 1 above the first scrapers 9.

[0027] A drain outlet 2 is provided at the bottom of the side wall of the desulfurization tower body 1. A solenoid valve is installed in the drain outlet 2. One end of the spraying equipment 7 is fixedly connected to the water inlet pipe 15. A water inlet 14 corresponding to the water inlet pipe 15 is provided on the side wall of the desulfurization tower body 1. A conveying pipe 5 is threadedly connected to the water inlet 14. The conveying pipe 5 is snapped into the water inlet pipe 15 through a connector. The end of the conveying pipe 5 away from the water inlet 14 is connected to a water source through a supply pump. A controller for controlling the servo motor 4, the solenoid valve and the supply pump is fixedly connected on the desulfurization tower body 1.

[0028] The controller uses existing technology, and those skilled in the art can select a suitable controller from the existing technology for installation, such as a PLC controller, model S7-1200.

[0029] Working principle: During the pretreatment of raw gas in the desulfurization tower body 1, the servo motor 4 can be activated by the controller to drive the lead screw 8 to rotate the first scraper 9. The third ring 22 is located on the surface of the lead screw 8 where there is no thread, and scrapes and cleans the inner wall and bottom wall of the desulfurization tower body 1. The first scraper 9 is embedded between two second scrapers 10, so that when it rotates, it will drive the second scrapers 10 to rotate synchronously. While rotating synchronously with the first scraper 9, the second scrapers 10 also move vertically back and forth on the surface of the lead screw 8 through the first ring 12, so that the second scrapers 10 scrape the inner wall of the desulfurization tower body 1 again. The dirt remaining on the inner wall of the desulfurization tower body 1 is cleaned by the first scraper 9 and the second scraper 10, so that the inner wall is always kept clean. During the cleaning process, the conveying pipe 5 delivers water from the water inlet pipe 15 to the spraying equipment through the supply pump, and sprays water to rinse the inner wall.

[0030] This invention, through the simultaneous operation of the support leg 3 and the second scraper 10, performs dual cleaning of the inner wall and bottom wall of the desulfurization tower body 1, thereby preventing scale buildup on the inner wall of the desulfurization tower body 1.

[0031] Second implementation method:

[0032] Figures 5-7 The desulfurization tower body 1 is shown to have a drain port 6 at its bottom end. A sealing plug 20 is connected to the drain port 6 by screws 21. A magnetic baffle 17 is fixedly connected to the bottom end of the desulfurization tower body 1 at the outer ring of the drain port 6. A foldable water-blocking cloth 18 is installed at the bottom end of the baffle 17. A magnetic block 19 corresponding to the bottom cross section of the first ring 12 is symmetrically fixedly connected to the bottom end of the water-blocking cloth 18. The magnetic block 19 and the bottom cross section of the baffle 17 attract each other.

[0033] Working principle: When the desulfurization tower body 1 is not in use, the solenoid valve is opened by the controller to discharge the wastewater settled in the desulfurization tower body 1. Then, the magnetic block 19 is pulled down to separate it from the baffle 17. At this time, the water-blocking cloth 18 unfolds and tilts. Then, the screw 21 is turned to remove the sealing plug 20, thereby opening the drain port 6. At this time, when the first scraper 9 and the second scraper 10 are opened to clean the inside of the desulfurization tower body 1, the cleaned dirt can be discharged from the drain port 6.

[0034] By setting a drain outlet 6, the dirt cleaned by the first scraper 9 can be discharged from the drain outlet 6 while cleaning the desulfurization tower body 1, thus avoiding dirt residue in the dead corners of the desulfurization tower body 1.

[0035] In light of current practical needs, the above-described embodiments adopted in this application are not limited to these. Any changes made within the scope of knowledge possessed by those skilled in the art without departing from the concept of this application still fall within the protection scope of this utility model.

Claims

1. A feed gas pretreatment device with high-efficiency desulfurization function, comprising a desulfurization tower body (1) with a support leg (3) at the bottom, characterized in that: The bottom of the desulfurization tower body (1) is provided with a support plate, and a servo motor (4) is fixedly connected to the support plate. The output end of the servo motor (4) is connected to a lead screw (8) extending into the desulfurization tower body (1). The lead screw (8) is symmetrically fitted with third rings (22) fixed to the surface of the lead screw (8). The two third rings (22) are symmetrically fixedly connected with first scrapers (9), and the first scrapers (9) are in contact with the inner side wall and bottom wall of the desulfurization tower body (1). The lead screw (8) is threaded with a first ring (12) between the two third rings (22). The surface of the desulfurization tower body (1) has an annular groove (16), and a second ring (13) is fitted on the surface of the annular groove (16). Multiple support rods (11) are fixedly connected at equal intervals on the side wall of the second ring (13). Two symmetrical second scrapers (10) are fixedly connected to the end of the support rod (11) away from the second ring (13). Two first scrapers (9) are embedded between the two second scrapers (10) and are in contact with the surface of the second scrapers (10) at both ends. The second scrapers (10) are in contact with the inner wall of the desulfurization tower body (1). A spraying device (7) is installed on the inner wall of the desulfurization tower body (1) above the first scraper (9).

2. The feed gas pretreatment device with high-efficiency desulfurization function according to claim 1, characterized in that: The desulfurization tower body (1) has a drain outlet (2) at the bottom of its side wall, and a solenoid valve is installed in the drain outlet (2).

3. A feed gas pretreatment device with high-efficiency desulfurization function according to claim 2, characterized in that: One end of the spraying equipment (7) is fixedly connected to a water inlet pipe (15). The side wall of the desulfurization tower body (1) is provided with a water inlet (14) corresponding to the water inlet pipe (15). The water inlet (14) is internally threaded with a conveying pipe (5), and the conveying pipe (5) is connected to the water inlet pipe (15) through a connector. The end of the conveying pipe (5) away from the water inlet (14) is connected to a water source through a supply pump.

4. The feed gas pretreatment device with high-efficiency desulfurization function according to claim 1, characterized in that: The desulfurization tower body (1) has a drain port (6) at the bottom end, and a sealing plug (20) is connected to the drain port (6) by a screw (21).

5. A feed gas pretreatment device with high-efficiency desulfurization function according to claim 4, characterized in that: The bottom of the desulfurization tower body (1) is fixedly connected to a magnetic baffle (17) at the outer ring of the sewage outlet (6), and a foldable water-blocking cloth (18) is installed at the bottom of the baffle (17).

6. A feed gas pretreatment device with high-efficiency desulfurization function according to claim 5, characterized in that: The bottom end of the water-blocking cloth (18) is symmetrically fixedly connected with a magnetic block (19) corresponding to the bottom cross section of the first ring (12), and the magnetic block (19) and the bottom cross section of the baffle (17) attract each other.

7. A feed gas pretreatment device with high-efficiency desulfurization function according to claim 3, characterized in that: The desulfurization tower body (1) is fixedly connected to a controller for a servo motor (4), a solenoid valve, and a supply pump.

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