Granulating device for recycling sintering fly ash

Abstract

The utility model relates to a granulation device for recycling sintering fly ash, which is applied to the technical field of sintering and solves the problems that the uniform mixing state of wetting by adding water is unstable, the material use condition of uniformly mixing and pelletizing the fly ash cannot be formed and the stability of the sintering production control process is influenced. The feeding end of the conveying mechanism is arranged below the discharging opening of the storage bin; the humidifying and mixing mechanism is arranged at the discharging end of the conveying mechanism, and the humidifying and mixing mechanism is used for adding water into the dedusting ash for mixing and stirring; the granulation mechanism is arranged at the discharging end of the humidifying and mixing mechanism, and the granulation mechanism is used for performing granulation processing on the humidified, stirred and mixed dedusting ash; the dedusting ash processing device has the advantages that dedusting ash and water can be evenly stirred, the humidity is moderate, the dedusting ash is processed into particles from powder, the whole process is high in automation degree, the whole process is simple and convenient to operate, and the processing efficiency is high.

Description

Technical Field

[0001] The utility model is applied in the technical field of sintering, in particular to a granulating device for recycling sintering dust. Background Art

[0002] In the production process of the steel industry, some environmental dust will be generated due to the process links such as material transportation, processing, mixing, and addition, and the amount of dust generated accounts for about 2% of the production capacity. Because the iron content of dust ash ranges from 10-60%, it can be added to the sintering production process and recycled. Because the environmental dust ash is an iron-containing dust with extremely fine particle size, it affects the air permeability of the sintering material. Therefore, the addition production generally adopts a small ratio of metering and humidification. At present, the instability of the production caused by the use of dust ash in the sintering production process has not been well solved. The instability of the water-wetting and mixing state and the inability to form the material use conditions of dust ash mixing and balling have also always affected the stability of the sintering production control process. The purpose of the utility model is to provide a granulating device that can achieve a uniform wetting state and form dust ash particles to participate in the production material blending, improve the air permeability of the sintering material layer, and improve the control of the sintering production process. Utility Model Content

[0003] The utility model aims to provide a granulating device for recycling sintering dust ash, which solves the problem that the instability of production caused by the use of dust ash in the existing sintering production process has not been well solved, and the instability of the water wetting and mixing state and the inability to form the material use conditions for mixing and pelletizing the dust ash have also always affected the stability of the sintering production control process.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] The utility model provides a granulating device for recycling sintering dust, comprising:

[0006] A storage bin, the storage bin is used to store dust removal ash;

[0007] A conveying mechanism, wherein a feeding end of the conveying mechanism is arranged below a feeding opening of the storage bin;

[0008] A humidifying and mixing mechanism, which is arranged at the discharge end of the conveying mechanism and is used to add water to the dust removal ash for mixing and stirring;

[0009] A granulating mechanism is provided at the discharge end of the humidifying and mixing mechanism, and is used for granulating the dust removed ash after humidification, stirring and mixing.

[0010] Furthermore, a material discharge control valve is provided at the discharge end of the storage bin.

[0011] Furthermore, the conveying mechanism includes a first feeder and a second feeder cooperating with the first feeder, the first feeder is a star feeder, and the second feeder is a screw feeder.

[0012] Furthermore, the humidifying and mixing mechanism includes a rotatably arranged belt scale, a double-screw conveying and stirring machine arranged at the discharge end of the belt scale, and a water adding component arranged in the double-screw conveying and stirring machine.

[0013] Furthermore, the water adding assembly includes a water adding pipe arranged in the double-screw conveying mixer and a plurality of water spraying pipes arranged on the water adding pipe, the water inlet end of the water adding pipe extends out of the double-screw conveying mixer, and a water volume regulating component is arranged on the water adding pipe located outside the double-screw conveying mixer.

[0014] Furthermore, the water volume regulating component includes a flow meter and a water adding regulating valve arranged on the water adding pipe.

[0015] Furthermore, an atomizing nozzle is provided at the water outlet end of the water spray pipe.

[0016] Furthermore, the granulation mechanism includes a double-roller granulator and a conveyor belt arranged at the discharge end of the double-roller granulator, and the conveyor belt is used to convey the dust ash granulated into balls.

[0017] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0018] The utility model provides a granulating device for recycling sintering dust ash. When the granulating device for recycling sintering dust ash of this structure is used to process and granulate the dust ash, the dust ash and water can be evenly mixed with moderate humidity through the cooperation of the storage bin, the conveying mechanism, the humidifying mixing mechanism and the granulating mechanism, so that the dust ash is processed from powder to granules. The whole process has a high degree of automation, is simple and easy to operate, and has high processing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the preferred embodiment of the utility model;

[0021] Figure 2 It is a schematic diagram of the structure of the coordination between the storage bin and the conveying mechanism in the preferred embodiment of the utility model;

[0022] Figure 3 It is a structural schematic diagram of the water adding component in the preferred embodiment of the utility model.

[0023] The reference numerals are described as follows:

[0024] 1. Storage silo;

[0025] 2. Control valve;

[0026] 3. Conveying mechanism; 31. First feeder; 32. Second feeder;

[0027] 4. Humidification and mixing mechanism; 41. Belt scale; 42. Double screw conveyor mixer; 43. Water adding assembly; 431. Water adding pipe; 432. Water spraying pipe; 434. Water volume adjustment; 4341. Flow meter; 4342. Water adding regulating valve;

[0028] 5. Granulating mechanism; 51. Double roller granulator; 52. Conveying belt. DETAILED DESCRIPTION

[0029] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0031] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0032] refer to Figure 1 , Figure 2 and Figure 3 , a granulating device for recycling sintering dust ash provided by the utility model, comprising:

[0033] Storage bin 1 is used to store dust ash; a discharge control valve 2 is provided at the discharge end of the storage bin 1. When the storage bin 1 is shut down or fails, the opening and closing of the discharge port of the storage bin 1 is controlled by the control valve 2 to facilitate the closing and maintenance of the storage bin 1.

[0034] The conveying mechanism 3, the feeding end of the conveying mechanism 3 is arranged below the material drop opening of the storage bin 1; the conveying mechanism 3 comprises a first feeder 31 and a second feeder 32 cooperating with the first feeder 31, the first feeder 31 is a star feeder, and the second feeder 32 is a screw feeder. The star feeder has stable material discharge, and the material quantity can be determined by the linkage between the star feeder and the screw feeder.

[0035] refer to Figure 1 , Figure 2 and Figure 3 , a humidifying and mixing mechanism 4, which is arranged at the discharge end of the conveying mechanism 3, and is used to add water to the dust ash for mixing and stirring; the humidifying and mixing mechanism 4 includes a rotatably arranged belt scale 41, a double-screw conveying and stirring machine 42 arranged at the discharge end of the belt scale 41, and a water adding component 43 arranged in the double-screw conveying and stirring machine 42. The conveyed dust ash is weighed by the belt scale 41, and the amount of water added to the double-screw conveying and stirring machine 42 by the water adding component 43 is adjusted according to the weight of the dust ash, so as to control the humidity of the dust ash, and at the same time, the dust ash and water are stirred evenly by the double-screw conveying and stirring machine 42, so as to facilitate the subsequent granulation of the dust ash; the water adding component 43 includes a water adding pipe 431 arranged in the double-screw conveying and stirring machine 42 and a plurality of water spraying pipes 432 arranged on the water adding pipe 431, and the water inlet of the water adding pipe 432 A double-screw conveying mixer 42 is extended from the end, and a water volume regulating component 434 is arranged on the water adding pipe 431 located outside the double-screw conveying mixer 42. The water volume regulating component 434 includes a flow meter 4341 and a water adding regulating valve 4342 arranged on the water adding pipe 431. The water adding component 43 of this structure has a simple structure and is convenient for controlling and adjusting the water volume; an atomizing nozzle is arranged at the water outlet end of the water spraying pipe 431, and the contact area between water and dust removal ash is increased by the atomizing nozzle, so that the water can be better infiltrated in the dust removal ash.

[0036] refer to Figure 1 , Figure 2 and Figure 3 The granulating mechanism 5 is arranged at the discharge end of the humidifying and mixing mechanism 4, and is used to granulate the dust ash after humidification, stirring and mixing. The granulating mechanism 5 includes a double-roll granulator 51 and a conveying belt 52 arranged at the discharge end of the double-roll granulator 51, and the conveying belt 52 is used to convey the dust ash after granulation.

[0037] To sum up: when the sintering dust ash is processed and granulated by the granulating device for recycling the sintering dust ash of this structure, the storage bin 1, the conveying mechanism 3, the humidifying mixing mechanism 4 and the granulating mechanism 5 can cooperate to achieve the dust ash and water being mixed evenly with moderate humidity, thereby processing the dust ash from powder into granules. The whole process has a high degree of automation, is simple and easy to operate, and has high processing efficiency.

[0038] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A granulating device for recycling sintering dust, characterized in that: include: A storage bin, the storage bin is used to store dust removal ash; A conveying mechanism, wherein a feeding end of the conveying mechanism is arranged below a feeding opening of the storage bin; A humidifying and mixing mechanism, which is arranged at the discharge end of the conveying mechanism and is used to add water to the dust removal ash for mixing and stirring; A granulating mechanism is provided at the discharge end of the humidifying and mixing mechanism, and is used for granulating the dust removed ash after humidification, stirring and mixing.

2. The granulating device for recycling sintering dust according to claim 1, characterized in that: A material discharge control valve is provided at the discharge end of the storage bin.

3. The sintering dust recycling granulator according to claim 1 or 2, characterized in that: The conveying mechanism includes a first feeder and a second feeder cooperating with the first feeder. The first feeder is a star feeder, and the second feeder is a screw feeder.

4. The granulating device for recycling sintering dust according to claim 3 is characterized in that: The humidifying and mixing mechanism comprises a rotatably arranged belt scale, a double-screw conveying and stirring machine arranged at the discharge end of the belt scale, and a water adding component arranged in the double-screw conveying and stirring machine.

5. The granulating device for recycling sintering dust according to claim 4, characterized in that: The water adding assembly includes a water adding pipe arranged in the double-screw conveying mixer and a plurality of water spraying pipes arranged on the water adding pipe. The water inlet end of the water adding pipe extends out of the double-screw conveying mixer. A water volume regulating member is arranged on the water adding pipe located outside the double-screw conveying mixer.

6. The granulating device for recycling sintering dust according to claim 5, characterized in that: The water volume regulating member comprises a flow meter and a water adding regulating valve arranged on the water adding pipe.

7. The granulating device for recycling sintering dust according to claim 6, characterized in that: The water outlet end of the water spray pipe is provided with an atomizing nozzle.

8. The granulating device for recycling sintering dust according to any one of claims 4 to 7, characterized in that: The granulation mechanism comprises a double-roll granulator and a conveyor belt arranged at the discharge end of the double-roll granulator, and the conveyor belt is used for conveying the dust granulated into balls.

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