Device for cooling dry dedusting ash bin
By designing a cooling device for dry dust collection silos, utilizing cold water circulation and heat sink structure, the problem of difficult cooling of dry dust collection silos was solved, achieving safe and efficient temperature control and cost reduction.
Patent Information
- Application Number
- CN202520253483.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-18
AI Technical Summary
Existing dry dust collection methods present difficulties in cooling down ash silos, are costly, and take a long time, which affects equipment safety and transportation safety.
Design a dry dust removal ash silo cooling device that includes a cooling cover, heat sink, and support legs. It is fixed to the outside of the ash silo with bolts, uses cold water circulation for cooling, and releases heat through heat dissipation vents to reduce nitrogen usage.
It enables adjustments to insulation or cooling based on the season, reducing production costs, preventing equipment damage and transportation accidents, and improving safety and efficiency.
Smart Images
Figure CN223646574U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of dry dust removal systems for blast furnaces, specifically to a device for cooling the ash silo in dry dust removal systems. Background Technology
[0002] In industries such as steel mills and cement plants that generate large amounts of high-temperature dust, dry dust removal (such as bag filters and electrostatic precipitators) is a commonly used purification method. However, the dust after dust removal may still maintain a high temperature, which not only affects the safety of storage and transportation but may also lead to problems such as equipment overheating or dust spontaneous combustion.
[0003] During blast furnace production, some substances in the raw materials form dust, which, along with the blast furnace gas, passes through a gravity dust collector and enters a dry dust collection system to form dust ash. Dry dust collection uses nitrogen to transport the dust from individual dust collection bins to a centralized ash silo, and then from the silo to suction and discharge tank trucks for removal. The temperature of the dust ash is approximately 100-180℃. Excessive temperature can damage the filter bags inside the trucks, causing dust storms or mechanical failures. To ensure safe operation, the suction and discharge tank trucks must handle the dust below 90℃. Especially in summer, when temperatures rise, cooling the dust ash becomes more difficult. The centralized ash silo is designed with steam coils and external insulation for winter insulation, further complicating cooling. Even when steam is not used in summer, nitrogen must still be introduced into the bottom of the ash silo for auxiliary cooling, which takes approximately 4-6 hours. While effective, this increases costs and is time-consuming.
[0004] Therefore, there is an urgent need to design a device for cooling dry dust collection silos to solve the problems of difficult cooling, high cost and long time consumption in existing technologies. Utility Model Content
[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a device for cooling dry dust removal ash silos.
[0006] The technical solution adopted by this utility model to solve its technical problem is: a device for cooling a dry dust removal ash hopper, including a cooling cover, heat sinks and support legs. The cooling cover is fitted around the heat sinks, the heat sinks are located outside the ash hopper, the heat sinks are fixedly connected to the ash hopper by bolts, and the support legs are located at the bottom of the cooling cover.
[0007] Specifically, the cooling cover is cylindrical and fitted onto the outside of the heat sink, and the cooling cover is provided with a water inlet, a water outlet and a heat dissipation port.
[0008] Specifically, the water inlet and water outlet are respectively located on both sides of the cooling hood, with the water inlet located below one side of the cooling hood and the water outlet located above one side of the cooling hood.
[0009] Specifically, the heat dissipation vent includes heat dissipation vent one and heat dissipation vent two. The cooling cover has reserved positions for openings on both sides, and heat dissipation vent one and heat dissipation vent two are respectively located at the reserved positions on both sides of the cooling cover.
[0010] Specifically, the heat sink is located on both sides outside the ash hopper, and the heat dissipation vents on the cooling cover are aligned with the heat sink.
[0011] Specifically, the support legs are located on both sides of the bottom of the ash hopper, and the support legs are placed on the ground to support the cooling cover.
[0012] This utility model has the following beneficial effects:
[0013] The device for cooling the dry dust collection silo designed in this utility model has the following advantages: 1. The dust collection silo can be adjusted for insulation or cooling according to the seasonal temperature; 2. In summer, there is no need to introduce nitrogen for auxiliary cooling, which reduces the use of nitrogen and lowers production costs; 3. The temperature can be controlled, avoiding vehicle maintenance costs and accidents caused by excessively high dust collection silo temperature. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the device for cooling the ash silo in dry dust removal.
[0015] In the diagram: 1-Cooling cover, 1.1-Water inlet, 1.2-Water outlet, 1.3-Heat dissipation port one, 1.4-Heat dissipation port two; 2-Heat dissipation fin; 3-Support leg; 4-Grey bin. Detailed Implementation
[0016] The technical solutions of the present utility model will be described in further detail below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0017] Example 1:
[0018] like Figure 1 As shown, a device for cooling a dry dust collection ash hopper includes a cooling cover 1, a heat sink 2, and a support leg 3. The cooling cover 1 is fitted around the heat sink 2, the heat sink 2 is located outside the ash hopper 4, the heat sink 2 is fixedly connected to the ash hopper 4 by bolts, and the support leg 3 is located at the bottom of the cooling cover 1.
[0019] The cooling cover 1 is a cylindrical cover that is fitted around the heat sink 2. Openings are provided on both sides of the cooling cover 1. The cooling cover 1 is used to cool the ash hopper 4. The cooling cover 1 has an inlet 1.1 and an outlet 1.2 for allowing cold water to enter and exit, ensuring that the water inside the cooling cover 1 is always cool to cool the ash hopper 4. The cooling cover 1 also has a first heat dissipation port 1.3 and a second heat dissipation port 1.4, located at the openings on both sides of the cooling cover 1. These ports release the heat emitted by the heat sink 2. The water discharged through the outlet 1.2 can be collected and recycled to avoid waste. The bottom of the cooling cover 1 also has support legs 3 for supporting the cooling cover 1. The heat sink 2 is located on both sides of the ash hopper 4, and its position determines the location of the heat dissipation ports. The heat sink 2 is used to dissipate heat from the ash hopper 4.
[0020] This utility model is not limited to the above-described embodiments. Anyone should know that any structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model.
[0021] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.
[0022] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for cooling a dry dust collection ash silo, characterized in that, It includes a cooling cover, a heat sink, and a support leg. The cooling cover is fitted around the heat sink, the heat sink is located outside the ash hopper, the heat sink is fixedly connected to the ash hopper by bolts, and the support leg is located at the bottom of the cooling cover.
2. The device for cooling the dry dust collection ash silo according to claim 1, characterized in that, The cooling cover is cylindrical and fitted over the outside of the heat sink. The cooling cover is equipped with a water inlet, a water outlet, and a heat dissipation port.
3. The device for cooling the dry dust collection ash silo according to claim 2, characterized in that, The water inlet and water outlet are respectively located on both sides of the cooling hood, with the water inlet located below one side of the cooling hood and the water outlet located above one side of the cooling hood.
4. The device for cooling the dry dust collection ash silo according to claim 2, characterized in that, The heat dissipation vent includes heat dissipation vent one and heat dissipation vent two. The cooling cover has reserved positions for openings on both sides, and heat dissipation vent one and heat dissipation vent two are respectively located at the reserved positions on both sides of the cooling cover.
5. The device for cooling the dry dust collection ash silo according to claim 1, characterized in that, The heat sink is located on both sides outside the ash hopper, and the heat dissipation vents on the cooling cover are aligned with the heat sink.
6. The device for cooling the dry dust collection ash silo according to claim 1, characterized in that, The support legs are located on both sides of the bottom of the ash hopper, and are placed on the ground to support the cooling hood.