A discharging structure of a fly ash balling machine

Abstract

The application discloses a discharging structure of a dust ash ball press, and relates to the technical field of metallurgical solid waste treatment equipment.The structure comprises a shell, a feeding pipe is arranged at the top of the shell, a discharging pipe is arranged at the bottom of the shell, and a discharging component and a rotating component are sequentially integrated from top to bottom in the shell.The discharging component uniformly discharges dust ash into the storage holes of the rotating component through a scraper, the rotating component intermittently rotates the storage holes, and the dust ash is extruded into a round cake-shaped particle by cooperating with an extrusion electric telescopic rod and then is conveyed to the discharging pipe for discharge.The application integrates the functions of discharging, extrusion molding and discharging into one, greatly improves the structural integration degree of the equipment, and reduces the floor area;the formed round cake-shaped particle is good in uniformity and high in strength, and is convenient for recycling and reprocessing of steel slag and steel dust ash in a steel plant;the whole process is carried out in a closed shell, effectively reduces dust pollution, and realizes continuous and efficient production.

Description

Technical Field

[0001] This invention relates to the field of metallurgical solid waste treatment equipment technology, and more specifically, to the discharge structure of a dust removal ash briquetting machine. Background Technology

[0002] Steel mills generate large amounts of dust and steel slag during the steelmaking process. These solid wastes contain various useful components such as iron and calcium oxide. Direct discharge would not only cause serious environmental pollution but also lead to a huge waste of resources. Currently, the industry commonly uses briquetting machines to compress the dust into pellets for easier transportation and subsequent smelting and recycling.

[0003] Existing dust collector briquetting machines mostly adopt a decentralized design for their discharge structure, with the three stages of feeding, extrusion molding, and discharge completed by independent equipment. This has the following drawbacks: First, the equipment has low structural integration, large footprint, and high installation and maintenance costs; second, blockages and uneven feeding are prone to occur during the feeding process, leading to unstable quality of the subsequently formed granules; third, severe dust pollution occurs during operation, deteriorating the working environment and endangering the health of operators; and fourth, continuous production cannot be achieved, resulting in low discharge efficiency and making it difficult to meet the needs of large-scale dust collection and ash treatment in steel plants.

[0004] In view of this, we propose a discharge structure for a dust removal briquetting machine. Summary of the Invention

[0005] The purpose of this invention is to provide a discharge structure for a dust removal briquetting machine, so as to solve the problems of low structural integration, poor molding quality, serious dust pollution, and low discharge efficiency of the prior art mentioned in the background.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a discharge structure for a dust collector briquetting machine, comprising a shell, a feed pipe fixedly connected to the top of the shell, and a discharge pipe fixedly connected to the bottom of the shell; a feeding component and a rotating component are arranged sequentially from top to bottom inside the shell; the feeding component is used to uniformly feed the dust collector ash input from the feed pipe to the rotating component, and the rotating component is used to receive the dust collector ash and compress it into round cake-shaped particles before conveying it to the discharge pipe for discharge.

[0007] As a further improvement to this technical solution, the feeding component includes a material support plate, which is fixedly connected to the inner wall of the housing. A conical groove is formed at the center of the upper surface of the material support plate. A rotating shaft is rotatably connected to the bottom center of the conical groove. A scraper is fixedly connected to the top of the rotating shaft. The lower surface of the scraper is in contact with the upper surface of the material support plate. Multiple feeding holes are evenly formed around the conical groove on the material support plate. A rotating drive assembly is connected to the bottom end of the rotating shaft.

[0008] As a further improvement to this technical solution, the rotation drive assembly includes a drive motor and a reducer. The drive motor is fixedly mounted on the outer wall of the housing. The input end of the reducer is fixedly connected to the output shaft of the drive motor, and the output end of the reducer is fixedly connected to the bottom end of the rotation shaft.

[0009] As a further improvement to this technical solution, the rotating component includes a turntable, which is horizontally disposed below the material support plate. The upper surface of the turntable has a plurality of material storage holes evenly distributed around the center. The material storage holes are cylindrical through holes, and the material storage holes correspond vertically to the material discharge holes. A drive shaft is fixedly connected to the center of the turntable. The top end of the drive shaft is rotatably connected to the lower surface of the material support plate, and the bottom end of the drive shaft extends out of the bottom of the housing and is fixedly connected to a drive gear.

[0010] As a further improvement to this technical solution, a rotating motor is fixedly connected to the outer side of the bottom of the housing. The output axis of the rotating motor extends upward and is fixedly connected to a drive gear. The drive gear meshes with the transmission gear for transmission.

[0011] As a further improvement to this technical solution, a fixed support plate is fixedly connected to the inner wall of the housing. The fixed support plate is located below the turntable, and the upper surface of the fixed support plate slides against the lower surface of the turntable. The fixed support plate has a discharge port corresponding to the upper and lower surfaces of the discharge pipe.

[0012] As a further improvement to this technical solution, an electric extrusion rod is provided above the fixed support plate. The electric extrusion rod is vertically fixedly installed on the inner wall of the housing. An extrusion head is fixedly connected to the bottom end of the piston rod of the electric extrusion rod. The extrusion head corresponds vertically to the storage hole, and the diameter of the extrusion head is smaller than the inner diameter of the storage hole.

[0013] As a further improvement to this technical solution, at least one of the extrusion electric telescopic rods is provided and is located above the material discharge hole and the material outlet.

[0014] As a further improvement to this technical solution, the number of scrapers is at least two, which are evenly distributed at the top of the rotating shaft, and the length of the scrapers is adapted to the radius of the conical groove.

[0015] As a further improvement to this technical solution, the number of feeding holes and storage holes are the same, and they are set in a one-to-one correspondence.

[0016] Compared with the prior art, the beneficial effects of the present invention are:

[0017] 1. This invention integrates the feeding component and the rotating extrusion component into the same housing, realizing the integrated operation of feeding, extrusion molding and discharge, which greatly improves the structural integration of the equipment, reduces the floor space, and reduces the installation and maintenance costs of the equipment.

[0018] 2. This invention adopts a rotating turntable structure, which receives dust ash through a storage hole and extrudes it into shape with an electric telescopic rod. This enables continuous production of round cake-shaped particles with good uniformity, high strength, and resistance to breakage, facilitating the subsequent recycling and processing of steel slag and steelmaking dust ash from steel plants.

[0019] 3. The feeding component of this invention adopts a scraper combined with a conical groove structure, which can evenly scrape the dust into the feeding hole, effectively avoiding the problem of feeding blockage; at the same time, the entire operation is carried out in a sealed shell, which significantly reduces dust flying and improves the working environment.

[0020] 4. This invention uses a rotating motor to drive the turntable to rotate intermittently, which realizes the synchronous operation of feeding, extrusion and discharge, greatly improving the discharge efficiency and meeting the production needs of large-scale dust and ash recycling in steel plants. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure assembly of the present invention;

[0022] Figure 2 This is a schematic diagram of the feeding component structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the rotating component structure of the present invention;

[0024] Figure 4 This is a top view of the turntable structure of the present invention.

[0025] The labels in the diagram represent the following: 1. Shell; 2. Feed pipe; 3. Discharge pipe; 4. Feeding component; 401. Support plate; 402. Conical groove; 403. Rotating shaft; 404. Scraper; 405. Feeding hole; 406. Rotation drive assembly; 5. Rotating component; 501. Turntable; 502. Storage hole; 503. Transmission gear; 504. Transmission shaft; 505. Drive gear; 506. Rotating motor; 507. Extrusion electric telescopic rod; 508. Fixed support plate. Detailed Implementation

[0026] The technical solutions in the embodiments of the present invention will now be clearly and completely described with reference to the accompanying drawings.

[0027] Example 1

[0028] Please see Figures 1-4As shown, this embodiment provides a discharge structure for a dust collector briquetting machine, including a housing 1. The housing 1 is a cylindrical, sealed structure made of stainless steel, which has good corrosion resistance and sealing performance. A feed pipe 2 is fixedly connected to the center of the top of the housing 1 for connecting to the discharge end of the briquetting machine to input the dust collector ash to be processed; a discharge pipe 3 is fixedly connected to the center of the bottom of the housing 1 for discharging the formed round cake-shaped granules.

[0029] Inside the housing 1, from top to bottom, are arranged a feeding component 4 and a rotating component 5. The feeding component 4 includes a receiving plate 401, which is a circular plate structure and is fixedly connected to the inner wall of the housing 1 by welding. A conical groove 402 is formed at the center of the upper surface of the receiving plate 401. The design of the conical groove 402 allows the falling dust to converge towards the center, facilitating the scraping operation of the scraper 404.

[0030] A rotating shaft 403 is rotatably connected to the bottom center of the conical groove 402 via a bearing. Two symmetrically distributed scrapers 404, made of wear-resistant rubber, are bolted to the top of the rotating shaft 403, with their lower surfaces tightly fitted to the upper surface of the support plate 401. Eight discharge holes 405, circular through holes, are evenly distributed around the conical groove 402 on the support plate 401. A rotating drive assembly 406, including a drive motor and a reducer, is connected to the bottom of the rotating shaft 403. The drive motor is fixedly mounted on the outer wall of the housing 1, the input end of the reducer is fixedly connected to the output shaft of the drive motor, and the output end of the reducer passes through the side wall of the housing 1 and is fixedly connected to the bottom of the rotating shaft 403.

[0031] The rotating component 5 includes a turntable 501, which is a circular turntable horizontally positioned below the material support plate 401. Eight storage holes 502 are evenly distributed around the center on the upper surface of the turntable 501. Each storage hole 502 is a cylindrical through-hole with the same diameter as the discharge hole 405, and the eight storage holes 502 correspond one-to-one with the eight discharge holes 405. A drive shaft 504 is fixedly connected to the center of the turntable 501 via a key. The top end of the drive shaft 504 is rotatably connected to the lower surface of the material support plate 401 via a bearing, and the bottom end of the drive shaft 504 extends out of the bottom of the housing 1 and is fixedly connected to a drive gear 503 via a key.

[0032] A rotary motor 506 is bolted to the outer bottom of the housing 1. The rotary motor 506 is a servo motor, which can achieve precise intermittent rotation control. The output axis of the rotary motor 506 extends upward and is fixed to a drive gear 505 via a key. The drive gear 505 meshes with the transmission gear 503 for transmission, with a transmission ratio of 1:1.

[0033] A fixed support plate 508 is welded to the inner wall of the housing 1. The fixed support plate 508 is a circular plate structure located below the turntable 501, and its upper surface slides against the lower surface of the turntable 501. It is used to support the turntable 501 and provide reaction force for extrusion molding. The fixed support plate 508 has a discharge port corresponding to the upper and lower parts of the discharge pipe 3. The diameter of the discharge port is larger than the diameter of the storage hole 502.

[0034] An electric extrusion telescopic rod 507 is installed above the fixed support plate 508. The electric extrusion telescopic rod 507 is vertically fixed on the inner wall of the housing 1, located above the material discharge hole 405 and the discharge port. The bottom end of the piston rod of the electric extrusion telescopic rod 507 is bolted to an extrusion head. The extrusion head has a cylindrical structure, and its diameter is 2mm smaller than the inner diameter of the material storage hole 502, so that it can smoothly extend into the material storage hole 502 to perform the extrusion operation.

[0035] The working principle of this embodiment is as follows: First, the dust generated by steelmaking in the steel plant enters the interior of the housing 1 through the feed pipe 2 and falls into the conical groove 402 of the material receiving plate 401; the rotation drive assembly 406 is started, and the drive motor drives the rotating shaft 403 and the scraper 404 to rotate at a constant speed through the reducer. The scraper 404 scrapes the dust in the conical groove 402 evenly into each discharge hole 405. Under the action of gravity, the dust falls through the discharge hole 405 into the corresponding storage hole 502 of the turntable 501 below.

[0036] The rotating motor 506 is started, which drives the drive gear 505 to rotate. Through gear meshing, the drive gear 503 and drive shaft 504 rotate, which in turn drives the turntable 501 to rotate intermittently. Each rotation angle is 45°, so that the next empty storage hole 502 is aligned with the discharge hole 405 to receive the dust. When the storage hole 502 containing dust rotates to be directly below the electric extrusion rod 507, the turntable 501 stops rotating, and the piston rod of the electric extrusion rod 507 extends downward, driving the extrusion head into the storage hole 502, compressing the dust in the storage hole 502 into dense, round, cake-shaped particles.

[0037] After extrusion, the piston rod of the electric telescopic rod 507 retracts upward, and the turntable 501 continues to rotate 45°, causing the storage hole 502 containing the formed particles to rotate above the discharge port of the fixed support plate 508. Under the action of gravity, the disc-shaped particles fall through the discharge port into the discharge pipe 3, and finally exit from the shell 1 through the discharge pipe 3, completing the entire discharge process. This cycle repeats continuously, realizing the continuous extrusion molding and discharge operation of dust collector ash.

Claims

1. A discharge structure for a dust collector briquetting machine, characterized in that: The device includes a housing (1), with a feed pipe (2) fixedly connected to the top of the housing (1) and a discharge pipe (3) fixedly connected to the bottom of the housing (1); a feeding component (4) and a rotating component (5) are arranged sequentially from top to bottom inside the housing (1); the feeding component (4) is used to uniformly feed the dust input from the feed pipe (2) to the rotating component (5), and the rotating component (5) is used to receive the dust and squeeze it into round cake-shaped particles before conveying it to the discharge pipe (3) for discharge.

2. The discharge structure of the dust collector briquetting machine according to claim 1, characterized in that: The feeding component (4) includes a support plate (401), which is fixedly connected to the inner wall of the housing (1). A conical groove (402) is provided at the center of the upper surface of the support plate (401). A rotating shaft (403) is rotatably connected to the bottom center of the conical groove (402). A scraper (404) is fixedly connected to the top of the rotating shaft (403). The lower surface of the scraper (404) is in contact with the upper surface of the support plate (401). A plurality of feeding holes (405) are evenly provided around the conical groove (402) on the support plate (401). A rotating drive assembly (406) is connected to the bottom end of the rotating shaft (403).

3. The discharge structure of the dust collector briquetting machine according to claim 2, characterized in that: The rotation drive assembly (406) includes a drive motor and a reducer. The drive motor is fixedly installed on the outer wall of the housing (1). The input end of the reducer is fixedly connected to the output shaft of the drive motor, and the output end of the reducer is fixedly connected to the bottom end of the rotation shaft (403).

4. The discharge structure of the dust collector briquetting machine according to claim 2, characterized in that: The rotating component (5) includes a turntable (501), which is horizontally positioned below the material support plate (401). Multiple storage holes (502) are evenly distributed around the center on the upper surface of the turntable (501). The storage holes (502) are cylindrical through holes, and the storage holes (502) correspond vertically to the discharge holes (405). A drive shaft (504) is fixedly connected to the center of the turntable (501). The top end of the drive shaft (504) is rotatably connected to the lower surface of the material support plate (401). The bottom end of the drive shaft (504) extends out of the bottom of the housing (1) and is fixedly connected to a drive gear (503).

5. The discharge structure of the dust collector briquetting machine according to claim 4, characterized in that: A rotating motor (506) is fixedly connected to the outer bottom of the housing (1). The output axis of the rotating motor (506) extends upward and is fixedly connected to a drive gear (505). The drive gear (505) meshes with the transmission gear (503) for transmission.

6. The discharge structure of the dust collector briquetting machine according to claim 4, characterized in that: A fixed support plate (508) is fixedly connected to the inner wall of the housing (1). The fixed support plate (508) is located below the turntable (501), and the upper surface of the fixed support plate (508) slides against the lower surface of the turntable (501). The fixed support plate (508) has an outlet corresponding to the upper and lower surfaces of the discharge pipe (3).

7. The discharge structure of the dust collector briquetting machine according to claim 6, characterized in that: An electric extrusion rod (507) is provided above the fixed support plate (508). The electric extrusion rod (507) is vertically fixed on the inner wall of the housing (1). An extrusion head is fixedly connected to the bottom end of the piston rod of the electric extrusion rod (507). The extrusion head corresponds to the storage hole (502) vertically, and the diameter of the extrusion head is smaller than the inner diameter of the storage hole (502).

8. The discharge structure of the dust collector briquetting machine according to claim 7, characterized in that: At least one of the extrusion electric telescopic rods (507) is provided and is located above the discharge port (405).

9. The discharge structure of the dust collector briquetting machine according to claim 2, characterized in that: The number of scrapers (404) is at least two, which are evenly distributed at the top of the rotating shaft (403), and the length of the scraper (404) is adapted to the radius of the conical groove (402).

10. The discharge structure of the dust collector briquetting machine according to claim 4, characterized in that: The number of feeding holes (405) and storage holes (502) are the same, and they are set in a one-to-one correspondence.

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