Dedusting ash recycling device

Abstract

The utility model relates to a dedusting ash recycling device which is characterized in that N material receiving bins are adjacent to a dust remover, N is a non-zero natural number larger than or equal to 1, a belt weigher is arranged below a discharge port in the bottom of each material receiving bin, a first conveying belt is arranged below the belt weigher, a dust cover is arranged above the first conveying belt, and the dust cover is connected with the dust remover. The dustproof cover is provided with a discharging port corresponding to the discharging end of each belt weigher. A buffering bin is arranged at the discharging end of the first conveying belt, the discharging end of the buffering bin is connected with a feeding port of a spiral feeder, the spiral feeder is obliquely arranged downwards, a screening component is arranged at the output end of the spiral feeder, the lower end of the screening component is connected with a storage bin, and a second conveying belt is arranged below the screening component. And the discharging end of the second conveying belt is connected with a sintering batching bin. According to the utility model, high-efficiency uniform mixing, screening and recycling of various dedusting ashes are realized. According to the method, the stability of components of the fly ash can be effectively improved, and the influence of the large-size-fraction fly ash on the sintering process is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel production, and in particular relates to a dust recovery and utilization device. Background Art

[0002] In the steel production process, a large amount of dust is generated in each production link. These dusts have high recycling value because they contain beneficial elements such as iron, calcium, and magnesium. In order to reduce production costs, these dusts are usually transported to sintering plants for recycling.

[0003] However, due to the different production processes and locations of dust ash, there are large differences in its chemical composition, particle size and production volume. For example, some dust ash may be rich in calcium, while others may have a high carbon content; at the same time, the particle size of dust ash may also vary due to different production processes. These differences have brought great challenges to the recycling of dust ash.

[0004] At present, steel enterprises usually use various types of dust removal ash as a mixed dust removal ash in a large mixing pile, or directly add it through the sintering batching room. However, this method has a big problem. Since various types of dust removal ash (especially large-size dust removal ash) are prone to segregation during the mixing and sintering process, this will cause large fluctuations in the sintering process and the composition of the sintered ore, thereby affecting the stability of the sintering production. In addition, this unstable sintered ore will also have an adverse effect on the operation of the blast furnace, thereby affecting the efficiency and quality of the entire steel production. Utility Model Content

[0005] In view of the problems existing in the prior art, the utility model provides a method for effectively mixing various dust removal ashes, improving the stability of the dust removal ashes components, and at the same time screening out large-size dust removal ashes to reduce the impact on the sintering process.

[0006] The utility model is implemented as follows: a dust ash recycling device, characterized in that: N receiving bins adjacent to the dust collector, wherein N is a non-zero natural number greater than or equal to 1, a belt scale is provided below the bottom discharge port of each receiving bin, a first conveyor belt is provided below the belt scale, a dust cover is provided above the first conveyor belt, and a discharge port is provided on the dust cover corresponding to the discharge end of each belt scale; a buffer bin is provided at the discharge end of the first conveyor belt, the discharge end of the buffer bin is connected to the feed port of a screw feeder, the screw feeder is arranged downwardly, a screening component is provided at the output end of the screw feeder, the lower end of the screening component is connected to a storage bin, a second conveyor belt is provided below the screening component, and the discharge end of the second conveyor belt is connected to a sintering batching bin.

[0007] Preferably, the angle between the screw feeder and the horizontal plane is 20 to 70 degrees.

[0008] Preferably, the screening component at the output end of the screw feeder is a screen rod structure, and the screen rod structure is composed of a plurality of screen rods arranged at equal intervals, and the interval between adjacent screen rods is 2 to 5 mm.

[0009] Preferably, casters are installed at the bottom of the storage bin.

[0010] The advantages and technical effects of the utility model are as follows: the dust ash recycling device of the present application has the advantages of efficient material receiving and metering, dust-proof design, buffering and uniform feeding, screening and grading processing, flexibility and adaptability, and easy movement and deployment, providing an efficient, environmentally friendly and economical solution for the recycling of dust ash. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 The screening component is a schematic diagram of the screen rod structure.

[0013] In the figure, 1. receiving bin; 2. belt scale; 3. first conveyor belt; 4. dust cover; 5. buffer bin; 6. screw feeder; 7. screening component; 7-1. screen rod; 8. storage bin; 9. second conveyor belt; 10. caster. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail in combination with the embodiments below. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model.

[0015] See also Figure 1 , a dust recycling device, N receiving bins 1 adjacent to a dust collector, the dust collector is a dust collector for collecting different types of dust; wherein N is a non-zero natural number greater than or equal to 1, and in this embodiment N=4; a belt scale 2 is provided below the bottom discharge port of each receiving bin, a first conveyor belt 3 is provided below the belt scale, a dust cover 4 is provided above the first conveyor belt, and a discharge port is provided on the dust cover corresponding to the discharge end of each belt scale; a buffer bin 5 is provided at the discharge end of the first conveyor belt, the discharge end of the buffer bin is connected to the feed port of a screw feeder 6, the screw feeder is arranged downwardly, and a screening component 7 is provided at the output end of the screw feeder, the lower end of the screening component is connected to a storage bin 8, a second conveyor belt 9 is provided below the screening component, and the discharge end of the second conveyor belt is connected to a sintering batching bin.

[0016] Preferably, the angle between the screw feeder and the horizontal plane is 20 to 70 degrees.

[0017] Preferably, the screening component at the output end of the screw feeder is a screen rod structure, and the screen rod structure is composed of several screen rods 7-1 arranged at equal intervals, and the spacing between adjacent screen rods is 2 to 5 mm, please refer to Figure 2 The screening component may also be replaced by an independent screen with a mesh size of 2 to 5 mm, or a screen with a vibration function.

[0018] Preferably, casters 10 are installed at the bottom of the storage bin.

[0019] The dust recycling device of the utility model has many significant advantages, which are as follows:

[0020] Efficient material receiving and metering: The device adopts a design of N adjacent receiving bins, which can simultaneously receive dust from multiple sources, improving the processing efficiency. Each receiving bin is equipped with a belt scale at the bottom, which can accurately measure the output dust volume, providing accurate data support for subsequent recycling.

[0021] Dust-proof design: A dust cover is installed above the first conveyor belt to effectively prevent dust from flying and scattering during transportation, improve the working environment, and reduce material waste.

[0022] Buffering and uniform feeding: By setting up a buffer bin and a screw feeder, the buffering and uniform feeding of the output material from the docking bin are achieved, ensuring the stability and continuity of the subsequent processing procedures.

[0023] Screening and grading: The output end of the screw feeder is equipped with a screening component, which can screen the dust and grade the materials of different particle sizes, providing convenience for subsequent refined recycling.

[0024] Flexibility and adaptability: The number of receiving bins N in the device can be adjusted according to actual needs, with strong flexibility and adaptability. At the same time, the inclination angle of the screw feeder can also be adjusted within a certain range to meet the conveying requirements of different materials.

[0025] Easy to move and deploy: Casters are installed at the bottom of the storage bin, so that the entire device can be easily moved and deployed when needed, improving the utilization and adaptability of the equipment.

[0026] The use of this utility model:

[0027] Ingredients and weighing:

[0028] (1) Transport all kinds of dust removal ash to the corresponding receiving bin.

[0029] (2) According to the amount of dust generated and the requirements for recycling, set the corresponding batching amount.

[0030] (3) Accurate weighing is performed through a belt scale at the bottom of the receiving bin to ensure the accuracy of the ingredients.

[0031] Mixing and conveying:

[0032] (1) Various types of dust are transported by the first conveyor belt according to the batching amount. In this process, the dust cover can effectively prevent the dust from flying and scattering.

[0033] (2) The dust collected enters the screw feeder through the buffer bin and is mixed evenly in the screw feeder.

[0034] (3) The mixed dust is output from the lower part of the screw feeder and is ready for screening.

[0035] Screening and grading:

[0036] (1) Large-size dust ash rolls down from the upper surface of the screen rod at the bottom of the screw feeder and enters the storage bin for temporary storage.

[0037] (2) Fine dust falls from the gap between the screen bars and onto the second conveyor belt.

[0038] (3) The second conveyor belt transports the fine-grained dust to the sintering batching system for subsequent batching operations.

[0039] Cleaning and maintenance:

[0040] (1) Regularly clean and treat the large-particle dust in the storage bin to ensure the continuous and stable operation of the device.

[0041] (2) Regularly maintain and service key components such as belt scales and screw feeders to extend the service life of the equipment.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A dust recycling device, characterized in that: There are N receiving bins adjacent to the dust collector, wherein N is a non-zero natural number greater than or equal to 1, a belt scale is provided below the bottom discharge port of each receiving bin, a first conveyor belt is provided below the belt scale, a dust cover is provided above the first conveyor belt, and a discharge port is provided on the dust cover corresponding to the discharge end of each belt scale; a buffer bin is provided at the discharge end of the first conveyor belt, the discharge end of the buffer bin is connected to the feed port of a screw feeder, the screw feeder is arranged downwardly, a screening component is provided at the output end of the screw feeder, the lower end of the screening component is connected to a storage bin, a second conveyor belt is provided below the screening component, and the discharge end of the second conveyor belt is connected to a sintering batching bin.

2. The dust recycling device according to claim 1 is characterized in that: The angle between the screw feeder and the horizontal plane is 20 to 70 degrees.

3. The dust recycling device according to claim 1 is characterized in that: The screening component at the output end of the screw feeder is a screen rod structure, and the screen rod structure is composed of a plurality of screen rods arranged at equal intervals, and the interval between adjacent screen rods is 2 to 5 mm.

4. The dust recycling device according to claim 1 is characterized in that: The bottom of the storage bin is equipped with casters.

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