A vanadium pentoxide melting furnace lining structure

Abstract

The utility model relates to a vanadium pentoxide melting furnace masonry structure belongs to metallurgical industry melting furnace structure technical field. Technical scheme is: the partition wall between melting area (18) and heat preservation area (19) is 500-800mm from furnace bottom, the partition wall between heat preservation area (19) and cooling area (20) is 800-1000mm from furnace top, the lower part of the partition wall between cooling area (20) and settlement area (21) is equipped with flue gas passage (24), the top of melting area (18) is equipped with the blanking down pipe (15), the bottom is equipped with the discharge chute (10), is equipped with the burner and burner brick (4) on furnace wall, and settlement area (21) is equipped with clear material hole (25);The furnace bottom of melting furnace is paved with chrome corundum brick (5);Melting furnace furnace top both sides are equipped with H profiled steel (16) through pull rod (17) and are pulled tight. The utility model has the beneficial effects that can avoid the continuous damage of refractory material, effectively prolong the furnace body life of melting furnace to 12 months or more.

Description

Technical Field

[0001] This utility model relates to a vanadium pentoxide melting furnace masonry structure, belonging to the technical field of melting furnace structure in the metallurgical industry. Background Technology

[0002] Currently, the main equipment for producing vanadium pentoxide tablets is the melting furnace. The furnace refractory material operates under extremely harsh conditions, enduring high temperatures, intense chemical corrosion, fluctuations in material temperature, and impacts and erosion from the material. The material enters the melting furnace via a feeder. The furnace refractory material must withstand multiple effects, including high temperatures, chemical corrosion, mechanical wear, material temperature changes, and impacts and erosion from the material. Damage to the working layer is primarily caused by the corrosion and erosion from the high-temperature material, making the furnace body highly susceptible to damage. Typically, the entire refractory material must be replaced every six months of production. Utility Model Content

[0003] The purpose of this invention is to provide a vanadium pentoxide melting furnace masonry structure that can avoid continuous damage to refractory materials, effectively extend the furnace body life to more than 12 months, and solve the problems existing in the background technology.

[0004] The technical solution of this utility model is: A vanadium pentoxide melting furnace masonry structure is disclosed. The melting furnace includes a melting zone, a heat preservation zone, a cooling zone, and a settling zone. The partition wall between the melting zone and the heat preservation zone is 500-800 mm from the furnace bottom, and the partition wall between the heat preservation zone and the cooling zone is 800-1000 mm from the furnace top. A flue gas passage is provided at the lower part of the partition wall between the cooling zone and the settling zone. A material chute is provided at the top of the melting zone, and a discharge chute is provided at the bottom of the melting zone. Burners and burner bricks are provided on the furnace wall of the melting zone, and a cleaning hole is provided in the settling zone. The furnace bottom of the melting furnace is a water-cooled furnace bottom, and chromium corundum bricks are laid on the water-cooled furnace bottom. The furnace top of the melting furnace is an arched top, and H-beams are provided on both sides of the arched top. The H-beams are tightened together by tie rods.

[0005] The lower part of the partition wall between the melting zone and the heat preservation zone is a flat arch, which is 500-800mm away from the furnace bottom, and high-alumina bricks are laid on top of the flat arch.

[0006] The burners and burner bricks on the furnace wall of the melting zone are directly opposite the flat arch at the bottom of the partition wall between the melting zone and the insulation zone.

[0007] The furnace top of the melting furnace consists of two layers: an upper arch and a lower arch.

[0008] The first arch is constructed of knife-shaped bricks and standard bricks, while the second arch is constructed of axe-shaped bricks and standard bricks.

[0009] The beneficial effects of this invention are: this structure can avoid continuous damage to the refractory material, effectively extend the furnace life of the melting furnace to more than 12 months, reduce production costs, and improve product quality. The structure is simple, construction is easy, and the constructed melting furnace is impact-resistant and has strong erosion resistance. Attached Figure Description

[0010] Figure 1 This is the front view of the present utility model; Figure 2 This is a side view of the present invention; In the diagram: 1. Alumina silicate insulation felt; 2. Clay brick; 3. High alumina brick; 4. Burner and burner brick; 5. Chrome corundum brick; 6. Water-cooled furnace bottom; 7. Furnace bottom I-beam and steel plate; 8. Foundation; 9. Observation hole; 10. Discharge chute; 11. Flat arch; 12. Partition wall; 13. Castable refractory; 15. Discharge chute; 16. H-beam; 17. Tie rod; 18. Melting zone; 19. Insulation zone; 20. Cooling zone; 21. Settling zone; 22. Arch 1; 23. Arch 2; 24. Flue gas passage; 25. Cleaning hole. Detailed Implementation

[0011] The present invention will be further described below with reference to the accompanying drawings and examples.

[0012] See attached document Figure 1 , 2 A vanadium pentoxide melting furnace masonry structure is disclosed. The melting furnace includes a melting zone 18, a heat preservation zone 19, a cooling zone 20, and a settling zone 21. The partition wall between the melting zone 18 and the heat preservation zone 19 is 500-800 mm from the furnace bottom, and the partition wall between the heat preservation zone 19 and the cooling zone 20 is 800-1000 mm from the furnace top. A flue gas passage 24 is provided at the lower part of the partition wall between the cooling zone 20 and the settling zone 21. A material discharge chute 15 is provided at the top of the melting zone 18, and a discharge chute 10 is provided at the bottom of the melting zone 18. Burners and burner bricks 4 are provided on the furnace wall of the melting zone 18. A material cleaning hole 25 is provided in the settling zone 21. The furnace bottom of the melting furnace is a water-cooled furnace bottom 6, and chromium corundum bricks 5 are laid on the water-cooled furnace bottom 6. The furnace top of the melting furnace is an arched top, and H-beams 16 are provided on both sides of the arched top. The H-beams 16 are tightened together by tie rods 17. In this embodiment, refer to the appendix Figure 1 , 2The melting furnace consists of a melting zone 18, a heat preservation zone 19, a cooling zone 20, and a settling zone 21. A flat arch 11 is set between the melting zone 18 and the heat preservation zone 19. The flat arch 11 is made of chromium corundum and is a common masonry structure in this field. High-alumina bricks are laid on the flat arch 11. The flat arch 11 is 500-800mm away from the furnace bottom. Partition walls are built between the heat preservation zone 19 and the cooling zone 20, as well as between the cooling zone 20 and the settling zone 21. The partition wall between the heat preservation zone 19 and the cooling zone 20 is 800-1000mm away from the furnace top. A flue gas passage 24 is provided below the partition wall between the cooling zone 20 and the settling zone 21. The settling zone 21 is equipped with a cleaning hole 25 and an observation hole 9. The burners and burner bricks 4 of the melting furnace are arranged at the horizontal center of the rear wall, with the burners facing the flat arch structure 11. The feeding pipe 15 of the melting furnace is made of 310S material and is located at the top of the furnace in the melting zone, while the discharge chute 10 is located at the bottom of the melting zone. The furnace bottom of the melting furnace is a water-cooled furnace bottom 6, with a layer of chrome corundum bricks 5 laid on top. The refractory material of the melting zone 18 is constructed with chrome corundum bricks 5, and the rest is constructed with high alumina bricks and clay bricks.

[0013] The furnace roof of the melting furnace is an arched roof, which is composed of arch 1 (22) and arch 2 (23). The two sides of the arch are tightened and fixed by H-beams (16) and tie rods (17). Arch 1 (22) is constructed of knife-shaped bricks and standard bricks, which are high-alumina bricks. Arch 2 (23) is constructed of axe-shaped bricks and standard bricks, which are lightweight insulating bricks.

Claims

1. A vanadium pentoxide melting furnace masonry structure, characterized in that: The melting furnace includes a melting zone (18), a holding zone (19), a cooling zone (20), and a settling zone (21). The partition wall between the melting zone (18) and the holding zone (19) is 500-800 mm from the furnace bottom, and the partition wall between the holding zone (19) and the cooling zone (20) is 800-1000 mm from the furnace top. A flue gas passage (24) is provided at the bottom of the partition wall between the cooling zone (20) and the settling zone (21). A material feeding passage is provided at the top of the melting zone (18). The bottom of the melting zone (18) is provided with a discharge chute (10), the furnace wall of the melting zone (18) is provided with burners and burner bricks (4), and the settling zone (21) is provided with a cleaning hole (25). The furnace bottom of the melting furnace is a water-cooled furnace bottom (6), and chromium corundum bricks (5) are laid on the water-cooled furnace bottom (6). The furnace top of the melting furnace is an arched top, and H-beams (16) are provided on both sides of the arched top. The H-beams (16) are tightened by tie rods (17).

2. The vanadium pentoxide melting furnace lining structure according to claim 1, characterized in that: The lower part of the partition wall between the melting zone (18) and the heat preservation zone (19) is a flat arch (11), which is 500-800mm away from the furnace bottom. High alumina bricks are built on the flat arch (11).

3. The vanadium pentoxide melting furnace lining structure according to claim 2, characterized in that: The burners and burner bricks (4) on the furnace wall of the melting zone (18) are directly opposite the flat arch (11) at the bottom of the partition wall between the melting zone (18) and the heat preservation zone (19).

4. The vanadium pentoxide melting furnace lining structure according to claim 1, characterized in that: The furnace top of the melting furnace consists of two layers: an upper arch (22) and a lower arch (23).

5. The vanadium pentoxide melting furnace lining structure according to claim 4, characterized in that: The first arch (22) is constructed of knife-shaped bricks and standard bricks, and the second arch (23) is constructed of axe-shaped bricks and standard bricks.

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