High-temperature flue gas dust removal cooling tower

Abstract

The utility model relates to the technical field of flue gas dust removal, and discloses a high-temperature flue gas dust removal cooling tower which comprises a tower body, a gas conveying pipe is installed on the periphery of the tower body, a filter assembly is arranged in the gas conveying pipe and used for filtering impurities in flue gas, and filler is installed in the middle of the inner side of the tower body and used for filtering impurities in the flue gas. A water conveying pipe is installed on the inner side of the tower body, a plurality of evenly-distributed atomizing nozzles are installed on the periphery of the water conveying pipe, a fan is installed on the top of the inner side of the tower body, and an ash removing assembly is arranged in the tower body and used for removing impurities accumulated in the tower body. According to the cooling tower, the filter plate can filter large particles in gas, so that the large particles are prevented from abrading equipment in the cooling tower, and the scraper moves and rotates to scrape off impurities attached to the inner wall of the tower body, so that the impurities are prevented from being accumulated and eroding the inner wall of the tower body.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas dust removal, in particular to a high-temperature flue gas dust removal cooling tower. Background Art

[0002] During the steelmaking process, converter steelmaking or electric furnace steelmaking will produce high-temperature dusty flue gas. For converter steelmaking, the flue gas temperature generated during the oxygen blowing process can be as high as 1500-1600℃, containing a large amount of iron oxide dust and carbon monoxide. The high-temperature flue gas dust removal cooling tower can quickly reduce the flue gas temperature. On the one hand, it helps to recover combustible gases such as carbon monoxide. On the other hand, dust removal can reduce pollution to the surrounding environment and meet the strict environmental protection index requirements of steel enterprises;

[0003] During direct cooling, the cooling water comes into direct contact with the high-temperature flue gas. Water is sprayed into the high-temperature flue gas in the form of mist or small water droplets. The water will evaporate quickly and absorb a large amount of heat during the evaporation process, thereby greatly reducing the flue gas temperature. During the cooling process, especially during direct cooling, as the temperature drops, the water vapor in the flue gas will condense. The water vapor condenses on the surface of the dust particles, increasing the particle size of the dust particles. According to Stokes' law, the sedimentation velocity of the particles is proportional to the square of the particle size. Dust particles with increased particle size are more likely to settle under the action of gravity;

[0004] The existing high-temperature gas lacks a pretreatment step when entering the cooling tower. The gas generated in the steelmaking process contains particles of different particle sizes. If the larger particles directly enter the dust removal cooling tower, it will cause wear and tear on the equipment inside the cooling tower. Therefore, a high-temperature flue gas dust removal cooling tower is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a high-temperature flue gas dust removal cooling tower, aiming to improve the problem of larger particles wearing out the equipment inside the cooling tower in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A high-temperature flue gas dust removal cooling tower comprises a tower body, an air delivery pipe is installed on the periphery of the tower body, a filter assembly is arranged inside the air delivery pipe, the filter assembly is used to filter impurities in the flue gas, a filler is installed in the middle of the inner side of the tower body, a water delivery pipe is installed on the inner side of the tower body, a plurality of evenly distributed atomizing nozzles are installed on the outer side of the water delivery pipe, a fan is installed on the top of the inner side of the tower body, a dust cleaning assembly is arranged inside the tower body, and the dust cleaning assembly is used to clean the impurities accumulated inside the tower body;

[0008] The filter assembly includes a filter plate, which is fixedly connected to the inside of the gas pipe. A mounting bracket is installed inside the gas pipe. A connecting shaft is rotatably connected inside the mounting bracket. A brush plate is installed at the right end of the connecting shaft. The brush plate and the filter plate abut against each other. A mounting shaft is installed on the outer periphery of the connecting shaft, and a propeller is installed on the outer periphery of the mounting shaft.

[0009] Through the above technical solution, the filter plate can prevent larger particles in the flue gas from entering the interior of the tower body.

[0010] As a further description of the above technical solution:

[0011] The dust cleaning assembly includes a guide rod, which is fixedly connected to the inside of the tower body. A movable sleeve is slidably connected to the outer periphery of the guide rod. Two mounting rods 1 are installed on the outer periphery of the movable sleeve. Mounting rod 1 is slidably connected to mounting rod 2 inside. A scraper is fixedly connected to one side of mounting rod 2, and the scraper abuts against the inner wall of the tower body.

[0012] Through the above technical solution, the two scrapers abut against the inner wall of the tower body and can scrape off the impurities on the inner wall of the tower body.

[0013] As a further description of the above technical solution:

[0014] A storage box is installed on the outer periphery of the gas pipe, a sealing block is rotatably connected inside the gas pipe, a spring 1 is installed inside the sealing block, one end of the spring 1 abuts against one side of the sealing block, and the other end of the spring 1 abuts against the inside of the gas pipe, the sealing block is arranged on the top of the storage box, and a guide block is installed on the top side of the sealing block.

[0015] Through the above technical solution, the guide block is installed so that the brush plate can push the sealing block to rotate during the rotation process.

[0016] As a further description of the above technical solution:

[0017] The outer periphery of the movable sleeve is rotatably connected to a mounting plate, the top side of the mounting plate is fixedly connected to a motor, a gear is installed at the driving end of the motor, and a plurality of evenly distributed teeth are installed on the outer periphery of the movable sleeve, and the teeth are meshed with the gear.

[0018] Through the above technical solution, the motor driving end can drive the movable sleeve to rotate through gears and teeth.

[0019] As a further description of the above technical solution:

[0020] A fixing block is installed inside the movable sleeve, a sliding groove is provided inside the guide rod, and the fixing block is arranged inside the sliding groove.

[0021] Through the above technical solution, the fixed block slides inside the slide groove to make the movable sleeve move during the rotation process.

[0022] As a further description of the above technical solution:

[0023] The other side of the second mounting rod is fixedly connected to a limiting plate, one side of the limiting plate is provided with a second spring, and one end of the second spring is installed inside the first mounting rod.

[0024] Through the above technical solution, the second spring plays a role in pushing the second mounting rod to move outside the first mounting rod.

[0025] As a further description of the above technical solution:

[0026] Two limit blocks are fixedly connected to the outer circumference of the connecting shaft, and the limit blocks are slidably connected to the inside of the installation shaft.

[0027] Through the above technical solution, the limit block is installed so that the propeller can drive the connecting shaft to rotate.

[0028] As a further description of the above technical solution:

[0029] The left end of the connecting shaft is fixedly connected with a spring three, and one end of the spring three is installed inside the installation shaft.

[0030] Through the above technical solution, spring three is used to absorb the smoke impact on the propeller.

[0031] The utility model has the following beneficial effects:

[0032] 1. In the utility model, the high-temperature gas enters the tower body through the gas pipe. By installing a filter plate inside the gas pipe, larger particles in the gas can be filtered, thereby preventing larger particles in the high-temperature gas from entering the shell and causing wear to the equipment inside the cooling tower;

[0033] 2. In the utility model, the motor drives the cleaning assembly to operate, so that the two scrapers in the cleaning assembly can move and rotate, thereby scraping off the impurities attached to the inner wall of the tower body to prevent the impurities from accumulating and eroding the inner wall of the tower body. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 A three-dimensional schematic diagram of a high-temperature flue gas dust removal cooling tower proposed by the utility model;

[0035] Figure 2 This is a schematic diagram of the structure of an air delivery pipe of a high-temperature flue gas dust removal cooling tower proposed by the utility model;

[0036] Figure 3 This is a structural schematic diagram of a brush plate of a high-temperature flue gas dust removal cooling tower proposed by the utility model;

[0037] Figure 4 This is a schematic diagram of the structure of a tower body of a high-temperature flue gas dust removal cooling tower proposed by the utility model;

[0038] Figure 5 This is a structural schematic diagram of a movable sleeve of a high-temperature flue gas dust removal cooling tower proposed by the utility model;

[0039] Figure 6 This is a structural schematic diagram of a fixing block of a high-temperature flue gas dust removal cooling tower proposed by the utility model;

[0040] Figure 7 The utility model is a schematic structural diagram of a mounting rod 1 of a high-temperature flue gas dust removal cooling tower.

[0041] Legend:

[0042] 1. Tower body; 2. Air pipe; 3. Storage box; 4. Filter assembly; 401. Propeller; 402. Mounting shaft; 403. Filter plate; 404. Brush plate; 405. Mounting bracket; 406. Connecting shaft; 5. Spring 1; 6. Sealing block; 7. Guide block; 8. Spring 2; 9. Limit plate; 10. Fan; 11. Atomizing nozzle; 12. Filler; 13. Cleaning assembly; 1301. Scraper; 1302. Moving sleeve; 1303. Mounting plate; 1304. Mounting rod 1; 1305. Guide rod; 1306. Teeth; 1307. Gear; 1308. Motor; 1309. Fixed block; 1310. Mounting rod 2; 14. Water pipe; 15. Spring 3; 16. Limit block. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0044] Reference Figure 1-Figure 3The utility model provides an embodiment: a high-temperature flue gas dust removal cooling tower, including a tower body 1, the tower body 1 as the main structure of the device for flue gas dust removal cooling empty space, the tower body 1 is equipped with an air pipe 2 on the periphery, the high-temperature flue gas can enter the tower body 1 through the air pipe 2, the air pipe 2 is provided with a filter assembly 4, the filter assembly 4 is used to filter impurities in the flue gas, the filter assembly 4 includes a filter plate 403, the filter plate 403 is fixedly connected to the inside of the air pipe 2, the filter plate 403 can filter larger particles in the flue gas, the air pipe 2 A mounting frame 405 is installed at the bottom, and the mounting frame 405 serves to install the connecting shaft 406. The connecting shaft 406 is rotatably connected inside the mounting frame 405, and the connecting shaft 406 serves to connect the brush plate 404 and the mounting shaft 402 to each other. A brush plate 404 is installed at the right end of the connecting shaft 406, and the brush plate 404 and the filter plate 403 abut against each other. The brush plate 404 and the filter plate 403 contact each other and can sweep away impurities attached to the surface of the filter plate 403. The outer periphery of the connecting shaft 406 is installed with a mounting shaft 402, and the mounting shaft 402 serves to install the propeller 40 1, a propeller 401 is installed on the periphery of the installation shaft 402, and the smoke can drive the propeller 401 to rotate. Two limit blocks 16 are fixedly connected to the periphery of the connecting shaft 406, and the limit blocks 16 are slidably connected to the inside of the installation shaft 402. The limit blocks 16 slide inside the installation shaft 402 so that the installation shaft 402 can drive the connecting shaft 406 to rotate. A spring 3 15 is fixedly connected to the left end of the connecting shaft 406, and one end of the spring 3 15 is installed inside the installation shaft 402. The contraction of the spring 3 15 can reduce the impact of smoke on the propeller 401. A storage box 3 is provided, which serves to collect filtered impurities. A sealing block 6 is rotatably connected inside the air pipe 2. The sealing block 6 is used to seal the air pipe 2. A spring 5 is installed inside the sealing block 6. One end of the spring 5 abuts against one side of the sealing block 6, and the other end of the spring 5 abuts against the inside of the air pipe 2. The spring 5 can push the sealing block 6 to fit tightly against the air pipe 2. The sealing block 6 is arranged on the top of the storage box 3. A guide block 7 is installed on the top side of the sealing block 6. The guide block 7 is installed so that the brush plate 404 can push the sealing block 6 to rotate during rotation, thereby causing impurities to fall into the storage box 3.

[0045] Reference Figure 4-Figure 6A dust cleaning component 13 is arranged inside the tower body 1, and the dust cleaning component 13 is used to clean the impurities accumulated inside the tower body 1; the dust cleaning component 13 includes a guide rod 1305, and the guide rod 1305 is fixedly connected to the inside of the tower body 1, and the guide rod 1305 plays a role in supporting the movement of the movable sleeve 1302, and the movable sleeve 1302 is slidably connected to the outer periphery of the guide rod 1305, and the movement of the movable sleeve 1302 can drive the installation rod 1304 to move, and the outer periphery of the movable sleeve 1302 is installed Two mounting rods 1304 are installed, and mounting rod 1310 is slidably connected inside mounting rod 1304. Mounting rod 1304 and mounting rod 1310 play the role of installing and adjusting scraper 1301. One side of mounting rod 1310 is fixedly connected with scraper 1301, and scraper 1301 abuts against the inner wall of tower body 1. Scraper 1301 rotates to scrape off impurities attached to the inner wall surface of tower body 1. The outer periphery of movable sleeve 1302 is rotatably connected with mounting plate 1303 The mounting plate 1303 is used to mount the motor 1308. The motor 1308 is fixedly connected to the top side of the mounting plate 1303. The driving end of the motor 1308 can drive the gear 1307 to rotate. A protective shell is installed on the periphery of the motor 1308 to protect the motor 1308. The driving end of the motor 1308 is installed with a gear 1307. A plurality of evenly distributed teeth 1306 are installed on the periphery of the movable sleeve 1302. The teeth 1306 are meshed with the gear 1307. 1306 is meshed with gear 1307 so that during the rotation of gear 1307, the movable sleeve 1302 can be driven to rotate through the teeth 1306. A fixed block 1309 is installed inside the movable sleeve 1302. A slide groove is opened inside the guide rod 1305. The fixed block 1309 is arranged inside the slide groove. The fixed block 1309 slides inside the slide groove so that during the rotation of the movable sleeve 1302, the fixed block 1309 can drive the movable sleeve 1302 to move along the guide rod 1305.

[0046] Reference Figure 7 The other side of the second mounting rod 1310 is fixedly connected to a limiting plate 9, which can limit the second mounting rod 1310 from falling off from the inside of the first mounting rod 1304. A spring 28 is installed on one side of the limiting plate 9, and one end of the spring 28 is installed inside the first mounting rod 1304. The spring 28 can push the second mounting rod 1310 to move toward the inner wall of the tower body 1 so that the scraper 1301 can be close to the inner wall of the tower body 1.

[0047] Reference Figure 1 , Figure 3 A filler 12 is installed in the middle of the inner side of the tower body 1. Installing the filler 12 can increase the contact area between the flue gas and the water flow, thereby improving the cooling efficiency. A water pipe 14 is installed on the inner side of the tower body 1. The water pipe 14 plays the role of transporting the water flow. A plurality of evenly distributed atomizing nozzles 11 are installed on the outer periphery of the water pipe 14. The water flow can be sprayed onto the flue gas through the atomizing nozzles 11. A fan 10 is installed on the top of the inner side of the tower body 1. Starting the fan 10 can discharge the cooled flue gas.

[0048] Working principle: When using the device, high-temperature flue gas is input into the tower body 1 through the gas pipe 2. The filter plate 403 inside the gas pipe 2 can filter larger impurities in the high-temperature flue gas to prevent the high-temperature flue gas from carrying larger impurities into the tower body 1 and causing wear to the inside of the tower body 1. When the high-temperature flue gas passes through the gas pipe 2, it can drive the propeller 401 to rotate. During the rotation of the propeller 401, the brush plate 404 can be driven to rotate through the connecting shaft 406. The rotation of the brush plate 404 can sweep away impurities attached to the surface of the filter plate 403, thereby maintaining the filtering effect of the filter plate 403. During the rotation of the brush plate 404, it can move along the guide block 7 to drive the sealing block 6 to rotate. After the sealing block 6 rotates, the impurities swept away can fall into the storage box 3 for collection.

[0049] After the filtered high-temperature flue gas enters the tower body 1, water is delivered to the multiple atomizing nozzles 11 through the water delivery pipe 14. The water flow is sprayed to the filler 12 through the multiple atomizing nozzles 11. After the high-temperature flue gas enters the filler 12, it is fully in contact with the water flow to cool down. After the cooling is completed, the motor 1308 is started to make the driving end of the motor 1308 drive the gear 1307 to rotate. During the rotation of the gear 1307, the multiple teeth 1306 can drive the moving sleeve 1302 to rotate. During the rotation of the moving sleeve 1302, the fixed block 1309 slides inside the slide groove so that the moving sleeve 1302 can reciprocate along the guide rod 1305 during the rotation, thereby driving the two scrapers 1301 to rotate and move to scrape off the impurities remaining on the inner wall of the tower body 1.

[0050] 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, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or 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 high-temperature flue gas dust removal cooling tower, comprising a tower body (1), characterized in that: An air delivery pipe (2) is installed on the outer periphery of the tower body (1), a filter assembly (4) is arranged inside the air delivery pipe (2), and the filter assembly (4) is used to filter impurities in the smoke; a filler (12) is installed in the middle of the inner side of the tower body (1); a water delivery pipe (14) is installed on the inner side of the tower body (1), and a plurality of evenly distributed atomizing nozzles (11) are installed on the outer periphery of the water delivery pipe (14); a fan (10) is installed on the inner top of the tower body (1); a dust cleaning assembly (13) is arranged inside the tower body (1), and the dust cleaning assembly (13) is used to clean impurities accumulated inside the tower body (1); The filter assembly (4) comprises a filter plate (403), the filter plate (403) being fixedly connected to the inside of the gas pipeline (2), a mounting frame (405) being installed inside the gas pipeline (2), a connecting shaft (406) being rotatably connected inside the mounting frame (405), a brush plate (404) being installed at the right end of the connecting shaft (406), the brush plate (404) and the filter plate (403) being in contact with each other, a mounting shaft (402) being installed on the outer periphery of the connecting shaft (406), and a propeller (401) being installed on the outer periphery of the mounting shaft (402).

2. A high-temperature flue gas dust removal cooling tower according to claim 1, characterized in that: The dust cleaning component (13) comprises a guide rod (1305), wherein the guide rod (1305) is fixedly connected to the inside of the tower body (1), a movable sleeve (1302) is slidably connected to the outer periphery of the guide rod (1305), two mounting rods (1304) are installed on the outer periphery of the movable sleeve (1302), a mounting rod (1310) is slidably connected to the inside of the mounting rod (1304), a scraper (1301) is fixedly connected to one side of the mounting rod (1310), and the scraper (1301) abuts against the inner wall of the tower body (1).

3. A high-temperature flue gas dust removal cooling tower according to claim 1, characterized in that: A storage box (3) is installed on the outer periphery of the gas delivery pipe (2), a sealing block (6) is rotatably connected inside the gas delivery pipe (2), a spring (5) is installed inside the sealing block (6), one end of the spring (5) abuts against one side of the sealing block (6), and the other end of the spring (5) abuts against the inside of the gas delivery pipe (2), the sealing block (6) is arranged on the top of the storage box (3), and a guide block (7) is installed on the top side of the sealing block (6).

4. A high-temperature flue gas dust removal cooling tower according to claim 2, characterized in that: The outer periphery of the movable sleeve (1302) is rotatably connected to a mounting plate (1303), the top side of the mounting plate (1303) is fixedly connected to a motor (1308), a gear (1307) is installed at the driving end of the motor (1308), and a plurality of evenly distributed teeth (1306) are installed on the outer periphery of the movable sleeve (1302), and the teeth (1306) are meshingly connected to the gear (1307).

5. A high-temperature flue gas dust removal cooling tower according to claim 2, characterized in that: A fixed block (1309) is installed inside the movable sleeve (1302), a sliding groove is provided inside the guide rod (1305), and the fixed block (1309) is arranged inside the sliding groove.

6. A high-temperature flue gas dust removal cooling tower according to claim 2, characterized in that: The other side of the second mounting rod (1310) is fixedly connected to a limiting plate (9), one side of the limiting plate (9) is provided with a second spring (8), one end of the second spring (8) is mounted inside the first mounting rod (1304).

7. A high-temperature flue gas dust removal cooling tower according to claim 1, characterized in that: Two limit blocks (16) are fixedly connected to the outer circumference of the connecting shaft (406), and the limit blocks (16) are slidably connected to the interior of the installation shaft (402).

8. A high-temperature flue gas dust removal cooling tower according to claim 1, characterized in that: The left end of the connecting shaft (406) is fixedly connected to a spring three (15), and one end of the spring three (15) is installed inside the installation shaft (402).

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