Equipment system for lifting upper bin of ash conveying system through bucket elevator

Abstract

The utility model relates to the field of secondary utilization equipment of converter coarse ash upper high-position bins, and discloses an equipment system for lifting an upper bin of an ash conveying system by using a bucket elevator, which comprises a bin, an emergency ash discharge port and a double-swing valve are sequentially arranged at the bottom end of the bin from left to right, an articulated chute is arranged at the bottom end of the double-swing valve, and an output end of the articulated chute is connected with an elevator. The output end of the elevator is connected with a bucket elevator machine head, the bottom end of the bucket elevator machine head is provided with a coarse ash bin, the output end of the coarse ash bin is connected with a discharging gathering bin, the discharging end of the discharging gathering bin is provided with a converter, and factors such as narrow site space position, coal gas contained in coarse ash, high temperature, high possibility of caking, intermittent production and the like are fully considered. A bucket elevator conveying mode which is advanced and reliable in technology and low in failure rate is adopted.

Description

Technical Field

[0001] This utility model relates to the field of secondary utilization equipment for converter coarse ash in high-level silos, and particularly to a device system that uses a bucket elevator to lift and transport ash to the silo. Background Technology

[0002] With the current sluggish steel market, steel mills are prioritizing cost reduction and are striving to fully utilize the iron-containing byproducts of their production. Converter dust not only contains a high amount of iron but also has excellent slagging properties, effectively reducing the consumption of slagging agents and cold feed, while improving the final composition control of the converter. Previously, converter dust was processed and briquetted before being returned to the converter, incurring processing costs of approximately 300 yuan per ton and consuming considerable time and labor. Therefore, a system utilizing a bucket elevator to lift and transport the dust to the silo is proposed to address these issues. Utility Model Content

[0003] The purpose of this invention is to provide a device system that utilizes a bucket elevator to lift the ash conveying system to the upper silo, in order to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: It includes a silo, with an emergency ash discharge port and a double swing valve arranged sequentially from left to right at the bottom end of the silo. A chute is provided at the bottom end of the double swing valve, and the output end of the chute is connected to an elevator. The output end of the elevator is connected to a bucket elevator head, and a coarse ash silo is provided at the bottom end of the bucket elevator head. The output end of the coarse ash silo is connected to a material collection silo, and a converter is provided at the discharge end of the material collection silo.

[0005] Preferably, a chute is provided between the bucket elevator head and the coarse ash bin, and a compensator is provided on the chute between the bucket elevator head and the coarse ash bin.

[0006] Preferably, the bottom of the coarse ash silo is a weighing silo, a chute is provided between the coarse ash silo and the material collection silo, a star-shaped ash discharge valve is connected to the bottom of the coarse ash silo, and a compensator is provided between the star-shaped ash discharge valve and the chute.

[0007] Preferably, a connecting pipe is provided at the top of the material collection bin, and the other end of the connecting pipe is connected to a weighing bin.

[0008] Preferably, a dust collector is installed at the top of the coarse ash silo.

[0009] The technical effects and advantages of this utility model are as follows:

[0010] 1. In this utility model, the coarse ash from the banana-shaped bend of the evaporative cooler falls into the silo. A double swing valve then lifts the coarse ash from the lower platform to the higher coarse ash silo via an elevator. When coarse ash needs to be added, a star-shaped ash discharge valve opens, allowing the coarse ash to be directly placed into the material collection silo. From there, it is added to the converter during the smelting process via a discharge chute, completing the coarse ash lifting process. This system fully considers factors such as limited space, the presence of coal gas in the coarse ash, high temperature, easy agglomeration, and intermittent production. It adopts an advanced, reliable, and low-failure-rate bucket elevator conveying method.

[0011] 2. The bucket elevator head of this utility model conveys coarse ash into the coarse ash silo through a chute. The compensator uses a stainless steel corrugated pipe, which can absorb heat deformation and avoid stress damage to the equipment. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the overall process of this utility model.

[0013] In the diagram: 1. Hopper; 2. Emergency ash discharge port; 3. Double swing valve; 4. Chute; 5. Elevator; 6. Bucket elevator head; 7. Compensator; 8. Hopper top dust collector; 9. Coarse ash hopper; 10. Ash hopper weighing; 11. Rotary star ash discharge valve; 12. Weighing bin; 13. Material collection bin; 14. Converter. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all 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 protection scope of the present utility model.

[0015] This utility model provides, for example Figure 1 The device system shown is an ash conveying system using a bucket elevator, including a hopper 1. From left to right, an emergency ash discharge port 2 and a double swing valve 3 are arranged at the bottom of the hopper 1. A chute 4 is arranged at the bottom of the double swing valve 3. The output end of the chute 4 is connected to an elevator 5. The output end of the elevator 5 is connected to the bucket elevator head 6. A coarse ash hopper 9 is arranged at the bottom of the bucket elevator head 6. The output end of the coarse ash hopper 9 is connected to a material collection bin 13. A converter 14 is arranged at the discharge end of the material collection bin 13.

[0016] After the coarse ash from the banana bend of the evaporator cooler falls into the hopper 1, it is lifted from the lower platform by the double swing valve 3 and then by the elevator 5 to the higher coarse ash hopper 9. When coarse ash needs to be added, the star-shaped ash discharge valve 11 is opened, and the coarse ash is directly placed into the discharge collection hopper 13. From there, it is added to the converter 14 during the smelting process via the discharge chute 4, thus completing the lifting of the coarse ash. This system fully considers factors such as limited space, coarse ash containing coal gas, high temperature, easy agglomeration, and intermittent production. It adopts an advanced, reliable, and low-failure-rate bucket elevator conveying method.

[0017] Emergency ash discharge port 2 remains closed and is only opened manually or automatically in case of system failure.

[0018] Furthermore, a chute 4 is provided between the bucket elevator head 6 and the coarse ash bin 9, and a compensator 7 is provided on the chute 4 between the bucket elevator head 6 and the coarse ash bin 9.

[0019] The bucket elevator head 6 conveys coarse ash to the coarse ash silo 9 through the chute 4. The compensator 7 is made of stainless steel corrugated pipe, which can absorb heat deformation and avoid stress damage to the equipment.

[0020] Furthermore, the bottom of the coarse ash silo 9 is equipped with an ash silo weighing 10, and a chute 4 is provided between the coarse ash silo 9 and the material collection silo 13. A star-shaped ash discharge valve 11 is connected to the bottom of the coarse ash silo 9, and a compensator 7 is provided between the star-shaped ash discharge valve 11 and the chute 4.

[0021] The ash bin weighing system 10 monitors the weight of the ash material in the coarse ash bin 9 in real time. When the coarse ash bin 9 reaches the set weight, the star-shaped ash discharge valve 11 is activated, and the ash material enters the discharge collection bin 13.

[0022] The compensator 7 is used to absorb heat deformation and prevent equipment stress damage.

[0023] Furthermore, a connecting pipe is provided at the top of the material collection bin 13, and the other end of the connecting pipe is connected to the weighing bin 12.

[0024] Furthermore, a dust collector 8 is installed at the top of the coarse ash silo 9.

[0025] After the ash material enters the coarse ash silo 9, the dust collector 8 on the top of the silo continues to operate to maintain a slight negative pressure inside the silo and prevent dust from escaping.

[0026] Working principle

[0027] After the coarse ash from the banana bend of the evaporator cooler falls into the hopper 1, it is lifted from the lower platform by the double swing valve 3 and then by the elevator 5 to the higher coarse ash hopper 9. When coarse ash needs to be added, the star-shaped ash discharge valve 11 is opened, and the coarse ash is directly placed into the discharge collection hopper 13. From there, it is added to the converter 14 during the smelting process via the discharge chute 4, thus completing the lifting of the coarse ash. This system fully considers factors such as limited space, coarse ash containing coal gas, high temperature, easy agglomeration, and intermittent production. It adopts an advanced, reliable, and low-failure-rate bucket elevator conveying method.

[0028] By directly using the coarse dust collector ash in the high-level silo and improving the converter end-point control, not only are the costs of briquetting processing reduced, but the "waste" can also be recycled and reused. The coarse dust collector ash has a good slag-forming effect, which can effectively reduce the consumption of slag-forming agents and cold materials. Through the elevator 5 and the ash silo weighing 11, the labor intensity of the staff is reduced.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device system for lifting ash conveying systems into silos using bucket elevators, characterized in that: The hopper (1) includes an emergency ash discharge port (2) and a double swing valve (3) arranged from left to right at the bottom of the hopper (1). A chute (4) is arranged at the bottom of the double swing valve (3). The output end of the chute (4) is connected to a hoist (5). The output end of the hoist (5) is connected to a bucket elevator head (6). A coarse ash hopper (9) is arranged at the bottom of the bucket elevator head (6). The output end of the coarse ash hopper (9) is connected to a material collection bin (13). A converter (14) is arranged at the discharge end of the material collection bin (13).

2. The equipment system for lifting ash conveying system into the upper silo using a bucket elevator according to claim 1, characterized in that: A chute (4) is provided between the bucket elevator head (6) and the coarse ash bin (9), and a compensator (7) is provided on the chute (4) between the bucket elevator head (6) and the coarse ash bin (9).

3. The system for lifting the hopper of a bucket elevator ash conveying system according to claim 2, characterized in that: The bottom of the coarse ash silo (9) is a ash silo weighing (10). A chute (4) is provided between the coarse ash silo (9) and the material collection silo (13). A star-shaped ash discharge valve (11) is connected to the bottom of the coarse ash silo (9). A compensator (7) is provided between the star-shaped ash discharge valve (11) and the chute (4).

4. The system for lifting the hopper of a bucket elevator ash handling system according to claim 1, characterized in that: The top of the material collection bin (13) is provided with a connecting pipe, and the other end of the connecting pipe is connected to the weighing bin (12).

5. The system for lifting the hopper of a bucket elevator ash handling system according to claim 3, wherein: The top of the coarse ash silo (9) is equipped with a silo top dust collector (8).

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