Calcium-based desulfurization device for coke-oven pushing coke flue gas ultra-low emission

Abstract

The utility model relates to the technical field of environmental protection, concretely relates to a coke oven coke pushing flue gas ultra -low emission calcium -based desulfurization device, including support platform, fixed mounting in the inner surface of support platform's bunker, the feed inlet communicated in the top of bunker, two groups of the blanking tube communicated in the bottom of bunker, the roots blower communicated in the other end of blanking tube, and the desulfurizer conveying pipe communicated in the other end of roots blower, the utility model discloses a body and prevent blocking mechanism of desulfurization device, not only can produce flue gas when in the coke oven coke pushing process, accurate delivery calcium -based desulfurizer and flue gas reaction, active removal of sulfur dioxide, cooperate with film filter cloth bag to guarantee particulate matter to reach the standard, make sulfur dioxide and particulate matter in flue gas stable satisfy the effect of ultra -low emission requirement, but also can control rubber hammer intermittently knock to desulfurizer conveying pipe, prevent desulfurizer from blocking desulfurizer conveying pipe, to realize the stable operation of ensuring desulfurization operation, guarantee the effect that coke pushing flue gas long -term stable reaches the standard emission.

Description

Technical Field

[0001] This utility model relates to the field of environmental protection technology, specifically to a calcium-based desulfurization device for ultra-low emission coke oven pusher flue gas. Background Technology

[0002] Desulfurization devices can convert harmful sulfur dioxide in flue gas into harmless or recyclable substances through chemical reactions or physical adsorption, thereby reducing the concentration of sulfur dioxide in flue gas.

[0003] In existing technologies, the flue gas generated during the coking process of some coke ovens is usually treated by a dust removal station after being collected by a gas collection facility before being discharged. However, the concentration of sulfur dioxide in the flue gas is relatively unstable and often exceeds the standard, especially when the production load increases. The existing technology for collecting and preliminarily purifying the flue gas generated during the coking process of coke ovens only uses a bag filter to capture particulate matter, which is not enough to actively remove sulfur dioxide from the flue gas. As a result, its concentration is completely dependent on the fluctuations of the production conditions and is difficult to control. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, this invention provides an ultra-low emission calcium-based desulfurization device for coke oven pushing flue gas, which can effectively solve the problem that existing technologies, which rely solely on bag filters to capture particulate matter, cannot actively remove sulfur dioxide from flue gas.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model provides an ultra-low emission calcium-based desulfurization device for coke oven pushing flue gas, including a desulfurization device body, including a support platform, a hopper fixedly installed on the inner surface of the support platform, a feed inlet connected to the top of the hopper, two sets of feed pipes connected to the bottom of the hopper, a Roots blower connected to the other end of the feed pipe, and a desulfurizing agent conveying pipe connected to the other end of the Roots blower.

[0007] The anti-blocking mechanism includes a reduction gear assembly for intermittently transmitting the rotational power of the Roots blower;

[0008] And a striking component capable of intermittently striking the surface of the desulfurizing agent delivery pipe in response to the rotation of the deceleration assembly, in order to clear blockages on its inner wall;

[0009] The deceleration assembly is provided in two sets, and is located on the outside of the Roots blower, and the knocking assembly is located on the outside of the desulfurizing agent conveying pipe.

[0010] Furthermore, the deceleration assembly includes a connecting column fixedly connected to the output end of the Roots blower via a coupling, a turntable fixedly sleeved on the outer end face of the connecting column, and a drive wheel and a brake wheel integrally formed on both sides of the turntable.

[0011] Furthermore, the deceleration assembly also includes a radial grooved wheel located on the outside of the turntable and used in conjunction with the drive wheel and the brake wheel, and a transmission column fixedly connected to the inner surface of the radial grooved wheel.

[0012] Furthermore, the deceleration assembly also includes a belt sleeved on the outer surface of the transmission column via a pulley, and a rotating rod sleeved on the inner surface of the other end of the belt via a pulley.

[0013] Furthermore, the transmission column is fixedly mounted on the outer surface of the Roots blower via a bearing seat;

[0014] The radial grooved wheel has straight grooves that cooperate with the drive wheel and arc grooves that cooperate with the brake wheel.

[0015] Furthermore, the striking assembly includes a fixed frame fixedly installed on the outside of the desulfurizing agent conveying pipe, a vortex wheel fixedly sleeved on the through end of the rotating rod, a force-bearing column provided on the outside of the vortex wheel, a swing rod integrally formed on the other end of the force-bearing column, and a rubber hammer fixedly installed on the other end of the swing rod and used in conjunction with the desulfurizing agent conveying pipe.

[0016] Furthermore, the striking assembly also includes a rotating column rotatably connected to the inner surface of the connecting column and used to support the swing arm, and a torsion spring sleeved on the outside of the rotating column.

[0017] Furthermore, a rotating bearing sleeve is installed at the connection between the rotating rod and the fixed frame, the outer end face of the force-bearing column slides in contact with the outer surface of the vortex wheel, and the swing rod is fixedly sleeved on the outer surface of the rotating column;

[0018] The two ends of the torsion spring are fixedly connected to the surfaces of the fixed frame and the rotating column, respectively.

[0019] The technical solution provided by this utility model has the following advantages compared with the known prior art:

[0020] This invention, by setting up a desulfurization device body and an anti-clogging mechanism, can not only accurately deliver calcium-based desulfurizing agent to react with flue gas during the coke oven pushing process to actively remove sulfur dioxide, but also ensure that particulate matter meets the standards by coking gas with the help of membrane filter bags, so that sulfur dioxide and particulate matter in the flue gas can stably meet the ultra-low emission requirements. It can also automatically control the rubber hammer to intermittently tap the desulfurizing agent delivery pipe to prevent the desulfurizing agent from clogging the desulfurizing agent delivery pipe, so as to ensure the stable operation of desulfurization and the long-term stable emission of coke pushing flue gas in compliance with emission standards. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This utility model Figure 1 A magnified view of the structure at point A in the middle;

[0024] Figure 3 This is a structural schematic diagram of the anti-blocking mechanism in this utility model from another perspective;

[0025] Figure 4 This utility model Figure 3 A magnified structural diagram of a portion of point B in the middle section;

[0026] Figure 5 This is a schematic diagram of the overall structure of the striking component in this utility model.

[0027] The labels in the diagram represent: 100, desulfurization unit body; 110, support platform; 120, hopper; 130, feed inlet; 140, discharge pipe; 150, Roots blower; 160, desulfurizing agent conveying pipe; 200, anti-clogging mechanism; 210, reduction gear assembly; 211, connecting column; 212, turntable; 213, drive wheel; 214, brake wheel; 215, radial grooved wheel; 216, transmission column; 217, belt; 218, rotating rod; 220, striking assembly; 221, fixed frame; 222, vortex wheel; 223, force-bearing column; 224, swing arm; 225, rubber hammer; 226, rotating column; 227, torsion spring. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] The present invention will be further described below with reference to the embodiments.

[0030] Example: An ultra-low emission calcium-based desulfurization device for coke oven pushing flue gas, refer to the attached document. Figure 1 - Appendix Figure 5 ,include,

[0031] The desulfurization unit body 100 includes a support platform 110, a hopper 120 fixedly installed on the inner surface of the support platform 110, a feed inlet 130 connected to the top of the hopper 120, two sets of discharge pipes 140 connected to the bottom of the hopper 120, a Roots blower 150 connected to the other end of the discharge pipe 140, and a desulfurizing agent conveying pipe 160 connected to the other end of the Roots blower 150.

[0032] It should be noted that the support platform 110 is used to fix the silo 120 and related equipment to ensure the overall stability of the device. The silo 120 is used to store and initially distribute the desulfurizing agent. The feed inlet 130 at the top of the silo is used to receive the desulfurizing agent. The calcium-based desulfurizing agent can be sent into the silo 120 through a closed method such as a tank truck, ensuring that there is no dust throughout the process. The discharge pipe 140 is used to connect the silo 120 and the Roots blower 150. The Roots blower 150 provides power to transport the desulfurizing agent from the discharge pipe 140 to the desulfurizing agent conveying pipe 160, and then discharge the desulfurizing agent from the tower. The discharge pipe 140 and the desulfurizing agent conveying pipe 160 are divided into two groups, each corresponding to one of the two conveying pipelines, to achieve the effect of dual discharge in one silo. The lower part of the discharge pipe 140 is equipped with two manual slide valves and three variable frequency rotary feeders, one of which is a spare. The bottom of the silo 120 is also connected to a pipeline that supplies material to the inlet flue gas pipeline of the coke oven dust collector.

[0033] The anti-blocking mechanism 200 includes a reduction gear assembly 210 for intermittently transmitting the rotational power of the Roots blower 150;

[0034] And a striking component 220 that can intermittently strike the surface of the desulfurizing agent delivery pipe 160 in accordance with the rotation of the deceleration component 210 to clear blockages on its inner wall.

[0035] Two sets of deceleration components 210 are provided, and they are located on the outside of the Roots blower 150, respectively. The knocking component 220 is located on the outside of the desulfurizing agent conveying pipe 160.

[0036] Specifically, the reduction assembly 210 includes a connecting column 211 fixedly connected to the output end of the Roots blower 150 via a coupling, a turntable 212 fixedly sleeved on the outer end face of the connecting column 211, and a drive wheel 213 and a brake wheel 214 integrally formed on both sides of the turntable 212.

[0037] Furthermore, the reduction assembly 210 also includes a radial grooved wheel 215 located on the outside of the turntable 212 and used in conjunction with the drive wheel 213 and the brake wheel 214, and a transmission column 216 fixedly connected to the inner surface of the radial grooved wheel 215.

[0038] Preferably, the reduction assembly 210 also includes a belt 217 sleeved on the outer surface of the drive column 216 via a pulley, and a rotating rod 218 sleeved on the inner surface of the other end of the belt 217 via a pulley.

[0039] It should be noted that when the Roots blower 150 is running, it can drive the connecting column 211 to rotate synchronously, which in turn drives the turntable 212, drive wheel 213 and brake wheel 214 to rotate synchronously. When the drive wheel 213 rotates to the straight groove embedded in the radial groove wheel 215, it will drive the radial groove wheel 215 and the transmission column 216 to rotate synchronously with the turntable 212. When the brake wheel 214 rotates to contact the arc groove of the radial groove wheel 215, it will restrict the rotation of the radial groove wheel 215 and keep it in a stationary state. This will cause the transmission column 216 to rotate synchronously and intermittently with the radial groove wheel 215. Through the cooperation of the transmission column 216 and the belt 217, the intermittent rotational power is transmitted to the rotating rod 218.

[0040] It should be noted that the drive column 216 is fixedly mounted on the outer surface of the Roots blower 150 via a bearing housing;

[0041] The radial groove wheel 215 has straight grooves that cooperate with the drive wheel 213 and arc grooves that cooperate with the brake wheel 214.

[0042] Furthermore, the striking assembly 220 includes a fixed bracket 221 fixedly installed on the outside of the desulfurizing agent delivery pipe 160, a vortex wheel 222 fixedly sleeved on the through end of the rotating rod 218, a force-bearing column 223 located on the outside of the vortex wheel 222, a swing rod 224 integrally formed on the other end of the force-bearing column 223, and a rubber hammer 225 fixedly installed on the other end of the swing rod 224 and used in conjunction with the desulfurizing agent delivery pipe 160.

[0043] Specifically, the striking assembly 220 also includes a rotating column 226 rotatably connected to the inner surface of the connecting column 211 and used to support the swing arm 224, and a torsion spring 227 sleeved on the outside of the rotating column 226.

[0044] It should be noted that the fixing frame 221 is used to provide support for the striking assembly 220. When the rotating rod 218 drives the volute 222 to rotate intermittently, the volute 222 can periodically push the force column 223 to move through its surface contour. Then, the force column 223 drives the swing rod 224 to rotate around the rotating column 226, so that the swing rod 224 drives the rubber hammer 225 to approach the desulfurizer delivery pipe 160 and strike its surface. The torsion spring 227 is tightened through the rotating column 226. When the volute 222 rotates to the position where it no longer pushes the force column 223, the reaction force of the torsion spring 227 drives the rotating column 226 to rotate in the opposite direction, so that the swing rod 224 and the rubber hammer 225 return to the initial position.

[0045] Preferably, a rotating bearing sleeve is installed at the connection between the rotating rod 218 and the fixed frame 221, the outer end face of the force-bearing column 223 slides in contact with the outer surface of the vortex wheel 222, and the swing rod 224 is fixedly sleeved on the outer surface of the rotating column 226.

[0046] The two ends of the torsion spring 227 are fixedly connected to the surfaces of the fixing frame 221 and the rotating column 226, respectively.

[0047] When using,

[0048] The calcium-based desulfurizing agent is fed into the silo 120 through the feed inlet 130 via a tanker truck. The desulfurizing agent is discharged through two sets of discharge pipes 140. The discharge amount is controlled by the manual slide valve and frequency converter rotary feeder at the bottom of the discharge pipe 140. Then, the desulfurizing agent is transported through the desulfurizing agent conveying pipe 160 via two pipelines, one to the flue gas inlet pipe of the coke oven dust collector and the other to the inlet pipe of the coke side ground dust collection station. After the desulfurizing agent reacts with the flue gas in the pipeline, it enters the dust collector for fine desulfurization. The membrane filter bag ensures that the particulate matter meets the standards.

[0049] At the same time, the output end of the Roots blower 150 drives the connecting column 211 and the turntable 212 to rotate synchronously, and the turntable 212 drives the drive wheel 213 and the brake wheel 214 to rotate synchronously.

[0050] When the drive wheel 213 is embedded in the straight groove of the radial groove wheel 215, it drives the radial groove wheel 215 and the drive column 216 to rotate. When the brake wheel 214 contacts the arc groove of the radial groove wheel 215, it restricts the rotation of the radial groove wheel 215 and keeps it stationary, so that the drive column 216 rotates intermittently during the operation of the Roots blower 150.

[0051] The intermittent power of the transmission column 216 is transmitted to the rotating rod 218 through the belt 217, causing the rotating rod 218 to drive the vortex wheel 222 to rotate synchronously and intermittently. The vortex wheel 222 then pushes the force-bearing column 223, causing the force-bearing column 223 to drive the swing rod 224 and the rubber hammer 225 to rotate around the rotating column 226. The rubber hammer 225 strikes the desulfurizing agent delivery pipe 160, and the torsion spring 227 resets to achieve intermittent striking to prevent blockage.

[0052] When the vortex wheel 222 rotates to the position where it no longer pushes the force-bearing column 223, the reaction force of the torsion spring 227 drives the swivel column 226 to rotate in the opposite direction, so that the swing arm 224 and the rubber hammer 225 return to the initial position. This cycle is repeated to achieve the effect of automatically controlling the rubber hammer 225 to intermittently strike the desulfurizer conveying pipe 160 during the feeding process of the Roots blower 150.

[0053] In summary, by setting up the desulfurization device body 100 and the anti-clogging mechanism 200, not only can calcium-based desulfurizing agent be accurately delivered to react with flue gas during the coke oven pushing process to actively remove sulfur dioxide, and with the help of membrane filter bags to ensure that particulate matter meets the standards, so that sulfur dioxide and particulate matter in the flue gas can stably meet the ultra-low emission requirements, but also the rubber hammer 225 can be automatically controlled to intermittently knock on the desulfurizing agent delivery pipe 160 to prevent the desulfurizing agent from clogging the desulfurizing agent delivery pipe 160. This achieves the effect of ensuring stable operation of desulfurization while ensuring long-term stable emission of coke pushing flue gas that meets emission standards.

[0054] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A calcium-based desulfurization device for ultra-low emission coke oven pusher flue gas, comprising, characterized in that, The desulfurization unit body (100) includes a support platform (110), a hopper (120) fixedly installed on the inner surface of the support platform (110), a feed inlet (130) connected to the top of the hopper (120), two sets of feed pipes (140) connected to the bottom of the hopper (120), a Roots blower (150) connected to the other end of the feed pipe (140), and a desulfurizing agent conveying pipe (160) connected to the other end of the Roots blower (150). The anti-blocking mechanism (200) includes a reduction gear assembly (210) for intermittently transmitting the rotational power of the Roots blower (150). And a tapping assembly (220) capable of intermittently tapping the surface of the desulfurizing agent delivery pipe (160) in response to the rotation of the deceleration assembly (210) to clear blockages on its inner wall. The deceleration assembly (210) is provided in two sets, and is located on the outside of the Roots blower (150), and the knocking assembly (220) is located on the outside of the desulfurizing agent conveying pipe (160).

2. The ultra-low emission calcium-based desulfurization device for coke oven pushing flue gas according to claim 1, characterized in that, The speed reduction assembly (210) includes a connecting column (211) fixedly connected to the output end of the Roots blower (150) via a coupling, a turntable (212) fixedly sleeved on the outer end face of the connecting column (211), and a drive wheel (213) and a brake wheel (214) integrally formed on both sides of the turntable (212).

3. The ultra-low emission calcium-based desulfurization device for coke oven pushing flue gas according to claim 2, characterized in that, The deceleration assembly (210) also includes a radial groove wheel (215) located on the outside of the turntable (212) and used in conjunction with the drive wheel (213) and brake wheel (214), and a transmission column (216) fixedly connected to the inner surface of the radial groove wheel (215).

4. The ultra-low emission calcium-based desulfurization device for coke oven pushing flue gas according to claim 3, characterized in that, The deceleration assembly (210) also includes a belt (217) sleeved on the outer surface of the transmission column (216) via a pulley, and a rotating rod (218) sleeved on the inner surface of the other end of the belt (217) via a pulley.

5. The ultra-low emission calcium-based desulfurization device for coke oven pushing flue gas according to claim 4, characterized in that, The drive column (216) is fixedly installed on the outer surface of the Roots blower (150) via a bearing seat; The radial groove wheel (215) has straight grooves that cooperate with the drive wheel (213) and arc grooves that cooperate with the brake wheel (214) distributed radially on its surface.

6. The ultra-low emission calcium-based desulfurization device for coke oven pushing flue gas according to claim 5, characterized in that, The striking assembly (220) includes a fixed frame (221) fixedly installed on the outside of the desulfurizing agent delivery pipe (160), a vortex wheel (222) fixedly sleeved on the through end of the rotating rod (218), a force-bearing column (223) provided on the outside of the vortex wheel (222), a swing rod (224) integrally formed on the other end of the force-bearing column (223), and a rubber hammer (225) fixedly installed on the other end of the swing rod (224) and used in conjunction with the desulfurizing agent delivery pipe (160).

7. The ultra-low emission calcium-based desulfurization device for coke oven pushing flue gas according to claim 6, characterized in that, The striking assembly (220) further includes a swivel column (226) rotatably connected to the inner surface of the connecting column (211) and used to support the swing arm (224), and a torsion spring (227) sleeved on the outside of the swivel column (226).

8. The ultra-low emission calcium-based desulfurization device for coke oven pushing flue gas according to claim 7, characterized in that, A rotating bearing sleeve is installed at the connection between the rotating rod (218) and the fixed frame (221). The outer end face of the force-bearing column (223) slides in contact with the outer surface of the vortex wheel (222). The swing rod (224) is fixedly sleeved on the outer surface of the rotating column (226). The two ends of the torsion spring (227) are fixedly connected to the surfaces of the fixing frame (221) and the rotating column (226), respectively.

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