Anti-adhesion device for in-furnace dry desulfurization
Patent Information
- Application Number
- CN202522368140.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-07
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-11-07
AI Technical Summary
[0002]在垃圾焚烧发电过程中，会产生含二氧化硫等污染物的烟气，炉内干法吸附脱硫技术因具有流程简洁、使用成本低、无二次废水污染等优势，广泛应用于垃圾焚烧领域，但是，现有技术中的脱硫设备存在以下问题：第一，由于脱硫剂主要成分是石灰粉，具有一定的粘性，且在输送过程中可能会受潮结块，因此，脱硫剂容易导致管道堵塞，尤其是在管道的弯头、变径及流速较低的位置堆积，这样不仅会影响脱硫剂的正常输送，导致脱硫效率下降，严重时还会导致整个脱硫系统停机；第二，由于脱硫剂进料时，需要用到风机输送风力，部分石灰可能会进入风机内部，而空气中不可避免会携带一定水分，当脱硫剂中的石灰与空气中的水汽接触，会发生化学反应生成氢氧化钙等物质，这些物质具有粘性，在风机运转时，风机内部高温高压环境会促使粘性物质逐渐碳化、结焦，进而致使风机叶轮磨损加剧、动平衡被破坏，使风机风量、风压不稳定性，影响脱硫剂输送效果
[0011]采用上述技术方案，由于进料管道外表面设有保温层，且保温层与进料管道外表面贴合，这样可以起到对进料管道保温的作用，减少进料管道内的热能流失，保证进料管道内部的温度稳定，避免因温度变化致使石灰粉受潮，从而降低进料管道内堵塞的可能性。
Smart Images
Figure CN224893819U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of desulfurization equipment, and in particular to an anti-adhesion device for in-furnace dry desulfurization. Background Technology
[0002] In the process of waste incineration power generation, flue gas containing pollutants such as sulfur dioxide is generated. Dry adsorption desulfurization technology in the furnace is widely used in the waste incineration field due to its advantages such as simple process, low operating cost, and no secondary wastewater pollution. However, existing desulfurization equipment has the following problems: First, since the main component of the desulfurizing agent is lime powder, it has a certain viscosity and may become damp and clump during transportation. Therefore, the desulfurizing agent easily causes pipeline blockage, especially at bends, diameter changes, and locations with low flow rates. This not only affects the normal transportation of the desulfurizing agent but also leads to desulfurization... First, efficiency decreases, and in severe cases, it can even lead to the shutdown of the entire desulfurization system. Second, since the desulfurizing agent needs to be fed by a fan, some lime may enter the fan. The air inevitably carries a certain amount of moisture. When the lime in the desulfurizing agent comes into contact with the moisture in the air, a chemical reaction occurs to produce substances such as calcium hydroxide. These substances are sticky. When the fan is running, the high temperature and high pressure environment inside the fan will cause the sticky substances to gradually carbonize and coke, which will lead to increased wear of the fan impeller, disruption of dynamic balance, and instability of the fan's air volume and pressure, thus affecting the desulfurizing agent delivery effect. Summary of the Invention
[0003] To address the aforementioned problems, this invention provides an anti-adhesion device for dry desulfurization in furnaces that can prevent pipe blockage and fan coking.
[0004] The technical solution of this utility model: An anti-adhesion device for in-furnace dry desulfurization includes an equipment base, a desulfurizing agent feed hopper connected to the equipment base, a feed pipe connected to the desulfurizing agent feed hopper, an air inlet pipe connected to the feed pipe, a blower connected to the air inlet pipe, a purging device connected to the feed pipe, and a controller. The purging device includes a connecting pipe connected to the feed pipe, a first connecting base connected to the equipment base, a connecting shaft movably connected to the first connecting base, a rotary motor for driving the connecting shaft to rotate, a second connecting base connected to the connecting shaft, an air blowing element connected to the connecting shaft, an air inlet pipe connected to the air blowing element, and a pneumatic pump connected to the air inlet pipe. The pneumatic pump is fixedly connected to the second connecting base. The connecting pipe is wrapped inside the first connecting base. The feed pipe is connected to the connecting pipe. The air blowing element is located inside the feed pipe. The number of purging devices is greater than or equal to two. The purging devices are evenly distributed in the feed pipe. The controller is electrically connected to the blower, the rotary motor, and the pneumatic pump respectively.
[0005] Using the above technical solution, firstly, the desulfurizing agent is poured into the desulfurizing agent feed hopper and then into the feed pipe. The controller controls the blower to provide airflow, which enters the feed pipe through the air inlet pipe, thereby driving the desulfurizing agent to complete the feeding. At the same time, the controller controls the air pressure pump to provide airflow, which enters the blowing element through the connecting pipe. Simultaneously, the controller controls the rotary motor to drive the connecting shaft to rotate, thereby driving the blowing element connected to the connecting shaft to rotate synchronously, completing the cleaning work of the inner wall of the feed pipe and preventing the desulfurizing agent from adhering to the inner wall of the pipe.
[0006] A further feature of this invention is that a dehumidifier is provided at the front end of the fan, and the dehumidifier is electrically connected to the controller.
[0007] By adopting the above technical solution, since a dehumidifier is installed at the front end of the fan, and the dehumidifier is controlled by a controller, the moisture in the air entering the fan is reduced. This prevents the air inside the fan from reacting chemically with the lime in the deacidifying agent, which would cause coking inside the fan, thus extending the service life of the fan and improving the air output efficiency of the fan.
[0008] A further feature of this invention is that the rotary motor is equipped with a time sensor, and the controller is electrically connected to the time sensor.
[0009] By adopting the above technical solution, since the rotating motor is equipped with a time sensor, it is possible to pre-set the time sensor to send an electrical signal to the controller every minute. The controller then controls the rotating motor to drive the connecting shaft to rotate one revolution. This not only achieves energy saving, but also ensures that the equipment can automatically start the cleaning function of the pipeline, thereby improving the automation level of the equipment.
[0010] A further feature of this invention is that the outer surface of the feed pipe is provided with a heat insulation layer, the heat insulation layer is made of aluminum foil insulation cotton material, and the heat insulation layer is attached to the outer surface of the feed pipe.
[0011] By adopting the above technical solution, since the outer surface of the feed pipe is provided with an insulation layer and the insulation layer is in close contact with the outer surface of the feed pipe, it can play a role in heat preservation of the feed pipe, reduce heat loss in the feed pipe, ensure the temperature stability inside the feed pipe, and prevent the lime powder from getting damp due to temperature changes, thereby reducing the possibility of blockage in the feed pipe. Attached Figure Description
[0012] Appendix Figure 1 This is a schematic diagram of the structure of an anti-adhesion device for in-furnace dry desulfurization according to a specific embodiment of the present utility model.
[0013] 1-Equipment base, 2-Desulfurizing agent feed silo, 3-Feeding pipe, 4-Air inlet pipe, 5-Fan, 6-Purge device, 7-Controller, 8-Connecting pipe, 9-First connecting base, 10-Connecting shaft, 11-Rotating motor, 12-Second connecting base, 13-Blowing element, 14-Air inlet pipe, 15-Air pressure pump, 16-Dehumidifier, 17-Time sensor, 18-Insulation layer. Detailed Implementation
[0014] like Figure 1 As shown, an anti-adhesion device for in-furnace dry desulfurization includes an equipment base 1, a desulfurizing agent feed hopper 2 connected to the equipment base 1, a feed pipe 3 connected to the desulfurizing agent feed hopper 2, an air inlet pipe 4 connected to the feed pipe 3, a fan 5 connected to the air inlet pipe 4, a purging device 6 connected to the feed pipe 3, and a controller 7. The purging device 6 includes a connecting pipe 8 connected to the feed pipe 3, a first connecting base 9 connected to the equipment base 1, a connecting shaft 10 movably connected to the first connecting base 9, a rotary motor 11 for driving the connecting shaft 10 to rotate, and a controller 7 connected to the connecting shaft 10. The second connecting base 12, the air blowing element 13 connected to the connecting shaft 10, the air inlet pipe 14 connected to the air blowing element 13, and the air pressure pump 15 connected to the air inlet pipe 14 are fixedly connected to the second connecting base 12. The connecting pipe 8 is wrapped inside the first connecting base 9. The feed pipe 3 is connected to the connecting pipe 8. The air blowing element 13 is located inside the feed pipe 3. The number of the purging devices 6 is greater than or equal to 2. The purging devices 6 are evenly distributed in the feed pipe 3. The controller 7 is electrically connected to the blower 5, the rotary motor 11, and the air pressure pump 15 respectively.
[0015] First, the desulfurizing agent is poured into the desulfurizing agent feed hopper 2 and then into the feed pipe 3. The controller 7 controls the blower 5 to provide air power, which enters the feed pipe 3 through the air inlet pipe 4, thereby driving the desulfurizing agent to complete the feeding. At the same time, the controller 7 controls the air pressure pump 15 to provide air power, which enters the air blowing element 13 through the connecting pipe 8. Simultaneously, the controller 7 controls the rotary motor 11 to drive the connecting shaft 10 to rotate, thereby driving the air blowing element 13 connected to the connecting shaft 10 to rotate synchronously, completing the cleaning work on the inner wall of the feed pipe 3 and preventing the desulfurizing agent from adhering to the inner wall of the pipe.
[0016] The front end of the fan 5 is equipped with a dehumidifier 16, which is electrically connected to the controller 7.
[0017] Since the front end of the fan 5 is equipped with a dehumidifier 16, the dehumidifier 16 is controlled by the controller 7 to reduce the moisture in the air entering the fan 5. This prevents the air inside the fan 5 from reacting chemically with the lime in the deacidifying agent, which would cause coking inside the fan 5, thus extending the service life of the fan 5 and improving the air output efficiency of the fan 5.
[0018] The rotary motor 11 is equipped with a time sensor 17, and the controller 7 is electrically connected to the time sensor 17.
[0019] Since the rotating motor 11 is equipped with a time sensor 17, it is possible to preset the time sensor 17 to send an electrical signal to the controller 7 every minute. The controller 7 then controls the rotating motor 11 to drive the connecting shaft 10 to rotate one revolution. This not only achieves energy saving, but also ensures that the equipment can automatically start the cleaning function of the pipeline, thereby improving the automation level of the equipment.
[0020] The outer surface of the feed pipe 3 is provided with a heat insulation layer 18, which is made of aluminum foil insulation cotton material and is attached to the outer surface of the feed pipe 3.
[0021] Since the outer surface of the feed pipe 3 is provided with an insulation layer 18, and the insulation layer 18 is attached to the outer surface of the feed pipe 3, it can play a role in heat preservation of the feed pipe 3, reduce the heat loss in the feed pipe 3, ensure the temperature stability inside the feed pipe 3, and prevent the lime powder from getting damp due to temperature changes, thereby reducing the possibility of blockage in the feed pipe 3.
Claims
1. An anti-adhesion device for in-furnace dry desulfurization, characterized in that: The device includes an equipment base, a desulfurizing agent feed hopper connected to the equipment base, a feed pipe connected to the desulfurizing agent feed hopper, an air inlet pipe connected to the feed pipe, a blower connected to the air inlet pipe, a purging device connected to the feed pipe, and a controller. The purging device includes a connecting pipe connected to the feed pipe, a first connecting base connected to the equipment base, a connecting shaft movably connected to the first connecting base, a rotary motor for driving the connecting shaft to rotate, a second connecting base connected to the connecting shaft, an air blowing element connected to the connecting shaft, an air inlet pipe connected to the air blowing element, and a pneumatic pump connected to the air inlet pipe. The pneumatic pump is fixedly connected to the second connecting base. The connecting pipe is enclosed within the first connecting base. The feed pipe communicates with the connecting pipe. The air blowing element is located inside the feed pipe. The number of purging devices is greater than or equal to two. The purging devices are evenly distributed throughout the feed pipe. The controller is electrically connected to the blower, the rotary motor, and the pneumatic pump, respectively.
2. The anti-adhesion device for in-furnace dry desulfurization according to claim 1, characterized in that: The front end of the fan is equipped with a dehumidifier, which is electrically connected to the controller.
3. The anti-adhesion device for in-furnace dry desulfurization according to claim 1, characterized in that: The rotary motor is equipped with a time sensor, and the controller is electrically connected to the time sensor.
4. The anti-adhesion device for in-furnace dry desulfurization according to claim 3, characterized in that: The outer surface of the feed pipe is provided with an insulation layer, which is made of aluminum foil insulation cotton material and is attached to the outer surface of the feed pipe.