Sulfur burning furnace outlet high-temperature flue gas regulating valve

Abstract

The utility model relates to the technical field of regulating valves, in particular to a regulating valve for high-temperature flue gas at an outlet of a sulfur burning furnace, which comprises a valve body, flanges are fixedly connected to two ends of the valve body, a valve rod is rotatably connected to the inside of the valve body, and a motor is fixedly connected to the surface of the valve body. Flue gas entering the valve body from one side of the gas inlet end of the valve body is filtered through the filter screen plate in the filter box, the purpose of purifying the flue gas is achieved, impurities can be effectively intercepted and prevented from being in direct contact with key components in the regulating valve, the abrasion degree of the components is greatly reduced, and the service life of the regulating valve is prolonged. And meanwhile, the rotary knob is rotated, the rotary knob drives the threaded rod to rotate in the fixing block, the clamping block moves upwards, fixing of the filter screen plate is relieved, and the working efficiency of taking the filter screen plate out of the filter box for cleaning and replacing in the later period is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of governing valve especially relates to a sulfur -burning furnace export high temperature flue gas governing valve. BACKGROUND

[0002] In many industrial processes such as sulfuric acid production, sulfur -burning furnace plays a vital role, the high temperature flue gas generated at its export not only temperature is usually as high as 800-1200 ℃, and contains corrosive components such as sulfur dioxide, more importantly, the flue gas often inclusions a large amount of solid impurities, for example, sulfur particles that are not fully combusted, mineral residues in the furnace and the like.

[0003] However, the traditional sulfur -burning furnace export high temperature flue gas governing valve focuses on the regulation of flue gas flow and pressure, but lacks effective impurity filtering function, causing these impurities to enter the inside of the governing valve and subsequent pipelines and equipment along with the flue gas, which can easily cause a series of problems such as pipeline blockage, intensified valve core wear, and impact on the normal progress of subsequent chemical reactions, thereby reducing the stability and reliability of the entire production system and increasing maintenance costs and equipment failure risks. Therefore, it is particularly necessary to develop a governing valve that can effectively filter impurities and accurately regulate flue gas flow and pressure. SUMMARY

[0004] The utility model discloses a sulfur -burning furnace export high temperature flue gas governing valve is provided to solve the problems mentioned in the prior art.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a sulfur -burning furnace export high temperature flue gas governing valve, including the valve body, both ends of the valve body are fixedly connected with flange, the inside rotationally connected with valve stem of the valve body, the surface fixedly connected with motor of the valve body, the output end of the motor is fixedly connected with the top of valve stem, the one side of the air inlet of the valve body is provided with filter box, the surface of filter box is equipped with square groove, the bottom of square groove is equipped with slot, the inside of slot is inserted with filter screen, the top of filter screen is fixedly connected with connecting plate, the surface of filter box is fixedly connected with fixed block, the inside screw connection of fixed block has screw rod, the surface rotationally connected with clamping block of screw rod, clamping block is clamped in the surface of connecting plate, the top of screw rod is fixedly connected with knob.

[0006] Preferably, the number of clamping blocks is two groups, and the two groups of clamping blocks are symmetrically distributed on both sides of the middle part of the connecting plate.

[0007] Preferably, the bottom of the filter box is fixedly connected with a slag discharge pipe, and the bottom of the slag discharge pipe is threadedly connected with a sealing cover.

[0008] Preferably, the surface of the knob is fixedly connected with anti-skid ribs, which are uniformly distributed on the surface of the knob.

[0009] Preferably, the inside of the square groove is provided with a sealing gasket, which is located below the two substrates and is made of high-temperature-resistant material.

[0010] Preferably, the surface of the connecting plate is provided with a limiting groove, the bottom of the clamping block is fixedly connected with a limiting rod, and the limiting rod is inserted into the inside of the limiting groove.

[0011] Preferably, the inside of the filter box is transversely fixedly connected with a supporting rod, the surface of the supporting rod is slidably connected with a scraper, and the surface of the scraper is fixedly connected with a pull rod.

[0012] Compared with the prior art, the utility model has the advantages and positive effects that:

[0013] 1、In the utility model, the filter screen plate in the filter box filters the flue gas entering the valve body from the air inlet end of the valve body, achieves the purpose of purifying the flue gas, can effectively intercept the impurities, avoids direct contact of the impurities with the key parts inside the regulating valve, greatly reduces the wear degree of the parts, helps to maintain the original size precision and surface quality of the parts, thereby prolongs the service life of the whole regulating valve, and through rotating the knob, the knob drives the screw rod to rotate in the fixed block, the clamping block moves upward, the fixing of the filter screen plate is released, and the work efficiency of taking out the filter screen plate from the filter box for cleaning and replacement in the later period is improved.

[0014] 2、In the utility model, through the push-pull pull rod, the pull rod drives the scraper to move along the supporting rod, the purpose of cleaning the impurities accumulated on the surface of the filter screen plate is achieved, the air passage of the filter screen plate is avoided from being blocked by the impurities, the gas flow is avoided from being affected, the work efficiency of the filter screen plate on the flue gas filtration is avoided from being affected, and the convenience of cleaning the impurities accumulated on the filter screen plate is improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 A schematic diagram of the sulfur incinerator outlet high-temperature flue gas regulating valve is provided for the utility model;

[0016] Figure 2 A schematic diagram of the sulfur incinerator outlet high-temperature flue gas regulating valve is provided for the utility model;

[0017] Figure 3 A partial sectional view of the sulfur incinerator outlet high-temperature flue gas regulating valve is provided for the utility model;

[0018] Figure 4 A partial sectional view of the sulfur incinerator outlet high-temperature flue gas regulating valve is provided for the utility model.

[0019] Legend:

[0020] 1. Valve body; 2. Flange; 3. Filter box; 4. Valve stem; 5. Motor; 6. Square groove; 7. Groove opening; 8. Filter screen; 9. Connecting plate; 10. Limiting groove; 11. Fixing block; 12. Screw; 13. Locking block; 14. Knob; 15. Support rod; 16. Scraper; 17. Pull rod; 18. Sealing gasket; 19. Slag discharge pipe; 20. Sealing cover; 21. Limiting rod; 22. Anti-slip ribs. Detailed Implementation

[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0023] Example 1: As Figure 1 - Figure 4 As shown, this utility model provides a technical solution: a high-temperature flue gas regulating valve for a sulfur incinerator outlet, including a valve body 1, flanges 2 fixedly connected to both ends of the valve body 1, a valve stem 4 rotatably connected inside the valve body 1, a motor 5 fixedly connected to the surface of the valve body 1, the output end of the motor 5 fixedly connected to the top end of the valve stem 4, a filter box 3 is provided on one side of the air inlet end of the valve body 1, a square groove 6 is opened on the surface of the filter box 3, a slot 7 is opened at the bottom of the square groove 6, a filter screen plate 8 is inserted inside the slot 7, a connecting plate 9 is fixedly connected to the top end of the filter screen plate 8, a fixing block 11 is fixedly connected to the surface of the filter box 3, a screw 12 is threadedly connected inside the fixing block 11, a locking block 13 is rotatably connected to the surface of the screw 12, and the locking block 1... 3 is mounted on the surface of the connecting plate 9. A knob 14 is fixedly connected to the top of the screw 12. There are two sets of locking blocks 13, which are symmetrically distributed on both sides of the middle of the surface of the connecting plate 9. A slag discharge pipe 19 is fixedly connected to the bottom of the filter box 3. A sealing cap 20 is threadedly connected to the bottom of the slag discharge pipe 19. Anti-slip ribs 22 are fixedly connected to the surface of the knob 14. The anti-slip ribs 22 are evenly distributed on the surface of the knob 14. A sealing gasket 18 is set inside the square groove 6. The sealing gasket 18 is located below the two base plates and is made of high temperature resistant material. A limiting groove 10 is opened on the surface of the connecting plate 9. A limiting rod 21 is fixedly connected to the bottom of the locking block 13. The limiting rod 21 is inserted into the limiting groove 10.

[0024] In the embodiment, the filter screen 8 in the filter box 3 filters the flue gas entering the valve body 1 from the inlet side, achieving the purpose of purifying the flue gas, effectively intercepting the impurities, avoiding direct contact with the internal key components of the regulating valve, greatly reducing the wear degree of the components, helping to maintain the original size accuracy and surface quality of the components, thereby prolonging the service life of the entire regulating valve. At the same time, by rotating the knob 14, the knob 14 drives the screw rod 12 to rotate in the fixed block 11, causing the clamping block 13 to move upwards, releasing the fixation of the filter screen 8, improving the work efficiency of removing the filter screen 8 from the filter box 3 for cleaning and replacement later. By removing the sealing cover 20 on the bottom of the filter box 3, it is convenient to clean the impurities accumulated in the filter box 3, and the impurities can be easily discharged along the discharge pipe 19. The anti-slip rib 22 on the knob 14 can increase the friction when rotating the knob 14, avoiding the phenomenon of slipping and idling. The sealing gasket 18 can improve the sealing effect between the connecting plate 9 and the square groove 6, avoiding air leakage. The limiting rod 21 at the bottom of the clamping block 13 is inserted into the limiting slot 10 on the connecting plate 9, which can limit the clamping block 13, avoiding the influence of accidental displacement and rotation of the clamping block 13 on the stability of the fixed filter screen 8.

[0025] Embodiment 2: as shown in Figure 2 Figure 3 The inside of the filter box 3 is transversely fixedly connected with a support rod 15, the surface of the support rod 15 is slidingly connected with a scraper 16, and the surface of the scraper 16 is fixedly connected with a pull rod 17.

[0026] In the embodiment, by pushing and pulling the pull rod 17, the pull rod 17 drives the scraper 16 to move along the support rod 15, achieving the purpose of cleaning the impurities accumulated on the surface of the filter screen 8, avoiding the impurities blocking the air of the filter screen 8, and affecting the gas flow, so as to avoid affecting the working efficiency of the filter screen 8 to filter the flue gas. At the same time, it also improves the convenience of cleaning the impurities accumulated on the filter screen 8.

[0027] ​The working principle of the embodiment is as follows: in use, first, the air inlet end and the air outlet end of the valve body 1 are stably connected with the subsequent conveying pipeline through the flanges 2 and the pipeline after the outlet of the sulfur burning furnace; when the sulfur burning furnace is working, the generated gas gradually rises; at this time, the control motor 5 is started, the output end of the motor 5 drives the valve rod 4 on the valve body 1 to rotate, the valve rod 4 drives the valve core in the valve body 1 to open and close, the flue gas passes through the filter screen plate 8 in the filter box 3 from the air inlet end of the valve body 1 to the side of the valve body 1, and the flue gas is filtered, so that the purpose of purifying the flue gas is achieved, the impurities can be effectively intercepted, direct contact of the impurities with the internal key components of the regulating valve is avoided, the wear degree of the components is greatly reduced, the original size precision and surface quality of the components are maintained, and the service life of the entire regulating valve is prolonged; meanwhile, by rotating the knob 14, the anti-skid ribs 22 on the knob 14 can increase the friction force when the knob 14 is rotated, so that the slip and idling of the knob 14 are avoided, the knob 14 drives the screw rod 12 to rotate in the fixed block 11, the clamping block 13 moves upward, the fixation of the filter screen plate 8 is released, then the filter screen plate 8 is pulled out from the slot 7 at the bottom of the square slot 6, the work efficiency of taking out the filter screen plate 8 from the filter box 3 for cleaning and replacement in the later period is improved; when the clamping block 13 fixes the dust screen plate, the limiting rod 21 at the bottom of the clamping block 13 is inserted into the limiting slot 10 on the connecting plate 9, so that the clamping block 13 is limited, and the stability of the fixation of the filter screen plate 8 is affected; when the impurity particles are accumulated on the filter screen plate 8, the push-pull rod 17 is pushed and pulled, the scraper 16 is driven by the pull rod 17 to move along the supporting rod 15, so that the impurities accumulated on the surface of the filter screen plate 8 are cleaned, the air passage of the filter screen plate 8 is avoided from being blocked by the impurities, the work efficiency of the flue gas filtering of the filter screen plate 8 is affected, and the convenience of cleaning the impurities accumulated on the filter screen plate 8 is improved; when the impurities in the filter box 3 need to be cleaned, the sealing cover 20 on the residue discharge pipe 19 is opened, and the impurity particles in the filter box 3 are discharged along the residue discharge pipe 19 under the action of gravity.

[0028] The above is only a preferred embodiment of the present application, and is not intended to limit the present application in other forms. Any skilled person in the art can modify or change the above disclosed technical content to equivalent embodiments applied to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still falls within the protection scope of the technical scheme of the present application.

Claims

1. A sulphur incinerator outlet high temperature flue gas regulating valve comprising a valve body (1), characterised in that: The both ends of the valve body (1) are fixedly connected with flanges (2), the inside of the valve body (1) is rotatably connected with a valve rod (4), the surface of the valve body (1) is fixedly connected with a motor (5), the output end of the motor (5) is fixedly connected with the top end of the valve rod (4), the air inlet end side of the valve body (1) is provided with a filter box (3), the surface of the filter box (3) is provided with a square groove (6), the bottom of the square groove (6) is provided with a notch (7), the inside of the notch (7) is inserted with a filter screen plate (8), the top end of the filter screen plate (8) is fixedly connected with a connecting plate (9), the surface of the filter box (3) is fixedly connected with a fixed block (11), the inside of the fixed block (11) is threadedly connected with a screw rod (12), the surface of the screw rod (12) is rotatably connected with a clamping block (13), the clamping block (13) is clamped on the surface of the connecting plate (9), the top end of the screw rod (12) is fixedly connected with a knob (14).

2. The sulfur incinerator outlet high temperature flue gas conditioning valve according to claim 1, characterized in that: The number of the clamping block (13) is two groups, and the two groups of clamping blocks (13) are symmetrically distributed on both sides of the middle of the surface of the connecting plate (9).

3. The sulfuric acid plant off-gas regulating valve according to claim 1, characterized in that: The bottom of the filter box (3) is fixedly connected with a slag discharge pipe (19), and the bottom of the slag discharge pipe (19) is threadedly connected with a sealing cover (20).

4. The sulfuric acid plant off-gas regulating valve according to claim 1, characterized in that: The surface of the knob (14) is fixedly connected with anti-skid ribs (22), and the anti-skid ribs (22) are evenly distributed on the surface of the knob (14).

5. The sulfuric acid plant off-gas regulating valve according to claim 1, characterized in that: The inside of the square groove (6) is provided with a sealing gasket (18), the sealing gasket (18) is located below the substrate, and the sealing gasket (18) is made of high-temperature resistant material.

6. The sulfuric acid plant off-gas regulating valve according to claim 1, characterized in that: The surface of the connecting plate (9) is provided with a limiting groove (10), the bottom of the clamping block (13) is fixedly connected with a limiting rod (21), and the limiting rod (21) is inserted into the inside of the limiting groove (10).

7. The sulfuric acid plant off-gas regulating valve according to claim 1, characterized in that: The inside of the filter box (3) is transversely fixedly connected with a supporting rod (15), the surface of the supporting rod (15) is slidably connected with a scraper (16), and the surface of the scraper (16) is fixedly connected with a pull rod (17).

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