High-quality pellet shaft furnace

Abstract

The utility model relates to the technical field of pellet shaft furnaces, in particular to a high-quality pellet shaft furnace. According to the technical scheme, the shaft furnace comprises a sleeve, a shaft furnace body, a mixing barrel, a fixing sleeve and a driving box, the sleeve is fixedly connected to an opening in the upper end of the shaft furnace body in a sleeving mode, the mixing barrel is fixed to the top end in the sleeve, the fixing sleeve is fixed to the top end in the mixing barrel, and a built-in ring is fixed to the inner side of the fixing sleeve; screening openings are formed in the lower end of the fixing sleeve in an annular array mode, the driving box is fixed to the lower end of the interior of the mixing barrel through a support, a driving box is slidably installed in an opening in the upper end of the driving box, a rotating disc is rotatably installed at the upper end of the driving box through a rotating shaft, and a rolling groove is formed in the outer side of the upper end face of the rotating disc; a sealing plate is arranged at an opening in the lower end of the mixing barrel, and stirring blades are arranged at the bottom end in the mixing barrel. The crusher has the advantages of completing crushing of particles with different sizes, facilitating raw material proportioning operation and being high in operability.

Description

Technical Field

[0001] The utility model relates to the technical field of pelletizing shaft furnaces, in particular to a high-quality pelletizing shaft furnace. Background Art

[0002] The pelletizing shaft furnace is a shaft furnace used for roasting metallurgical pellets, belonging to the technical field of metallurgical equipment. It includes a furnace composed of furnace walls, a wind-locking unloading device arranged at the lower end of the furnace, a pelletizing material inlet at the upper part of the furnace and a crushing roller arranged in the middle of the furnace, an air supply nozzle at the lower part of the furnace wall, a fuel pipeline communicating with the inside and outside of the furnace, and a fuel nozzle arranged in the furnace part of the fuel pipeline.

[0003] The different proportions of raw materials in the production process will result in different compressive strength and stability of the finished product. To ensure that the product quality meets the standards, quantitative proportioning is required. However, the existing raw materials have different particle sizes, making proportioning difficult; and the feed introduction mechanism of the existing pelletizing shaft furnace is relatively simple, which is not convenient for raw material screening and crushing, and has poor practicality. Utility Model Content

[0004] The utility model aims to provide a high-quality pelletizing shaft furnace, which has the advantages of crushing particles of different sizes, facilitating raw material proportioning operations, and having strong operability, and solves the problems in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a high-quality pelletizing vertical furnace, comprising a sleeve, a vertical furnace body, a mixing cylinder, a fixed sleeve and a driving box, wherein the sleeve is sleeved and fixed at the upper end opening of the vertical furnace body, the mixing cylinder is fixed at the inner top end of the sleeve, the fixed sleeve is fixed at the inner top end of the mixing cylinder, an inner side of the fixed sleeve is fixed with an internal ring, a screening opening is provided in a circular array at the lower end of the fixed sleeve, the driving box is fixed to the inner lower end of the mixing cylinder through a bracket, a driving box is slidably installed in the upper end opening of the driving box, a turntable is rotatably installed at the upper end of the driving box through a rotating shaft, a rolling groove is provided on the outer side of the upper end surface of the turntable, a sealing plate is provided at the lower end opening of the mixing cylinder, a stirring blade is provided at the inner bottom end of the mixing cylinder, electric telescopic rods are embedded and installed on both sides of the inner bottom end of the mixing cylinder, and the lower end of the electric telescopic rod is fixed on the sealing plate.

[0006] When using a high-quality pellet ore vertical furnace in the technical solution, the raw material particles are introduced into the recess on the upper side of the sleeve, and the raw material is introduced into the upper side of the turntable after passing through the feed port and the guide port. At this time, the raw material rolls to both sides due to the convex arc surface of the turntable, and the raw material particles are screened through the screening port of the fixed sleeve, so that larger particles remain in the inside of the rolling groove, and then the cylinder on the upper side of the driving box is started to drive the driving box to lift, and the driving box drives the turntable to rise, and the granular raw material in the rolling groove on the turntable fits with the lower side of the built-in ring, and the large-particle raw material is crushed by the crushing teeth on the lower side of the built-in ring and the rotation of the turntable. After the crushing is completed, the small-particle raw material is discharged through the screening port, and the small-particle raw material falls onto the sealing plate at the bottom. When the granular materials are put in batches, the motor on the lower side of the driving box is started to drive the stirring blade to rotate, and the stirring blade mixes the different granular materials. After the mixing is completed, the electric telescopic rod is started to descend, and the electric telescopic rod drives the sealing plate to descend, and the granular materials slide outward from the side of the sealing plate through the arc surface on the upper side of the sealing plate, so that the granular materials enter the vertical furnace body.

[0007] Preferably, a support leg is fixed on the outside of the vertical furnace body, and there are three support legs in total, and the three support legs are distributed in a circular array, and an anti-skid pad is fixed at the lower end of the support leg. The support leg is used to support the vertical furnace body, and the anti-skid pad increases friction to ensure support stability.

[0008] Preferably, a feed inlet is provided in the recess at the upper end of the sleeve, and a material guide port is provided at the upper end of the mixing barrel, and the material guide port corresponds to the feed inlet. The raw materials are introduced into the mixing barrel through the feed inlet and the material guide port.

[0009] Preferably, the lower end surface of the built-in ring is provided with crushing teeth in an annular array, and the crushing teeth of the built-in ring correspond to the rolling grooves. The crushing teeth are used to roll and crush the granular raw materials in the rolling grooves.

[0010] Preferably, the rotating disc is located inside the fixed sleeve, and the rolling groove corresponds to the screening opening. The raw material particles sliding outward from the rotating disc are screened through the rolling groove of the fixed sleeve, so that large particles remain in the rolling groove.

[0011] Preferably, a cylinder is fixed in the upper opening of the driving box, and the top of the cylinder is fixed on the driving box, and a motor is provided at the lower end of the driving box, and the output shaft of the motor is connected to the stirring blade. The driving box is driven up and down by the cylinder, the driving box drives the turntable up and down, and the motor at the lower end of the driving box drives the stirring blade to rotate.

[0012] Preferably, the middle of the upper end of the rotating disk and the sealing plate are both convexly designed. The convex structure design allows the granular raw materials to slide outwards, making it easy to unload.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the operator starts the device through an external control device after being powered by an external power supply, and introduces the raw material particles into the recess on the upper side of the sleeve, so that the raw material passes through the feed port and the guide port and is introduced into the upper side of the turntable. At this time, the raw material rolls to both sides due to the convex arc surface of the turntable, and the raw material particles are screened through the screening port of the fixed sleeve, so that larger particles remain inside the rolling groove, and then the cylinder on the upper side of the drive box is started to drive the drive box to lift, and the drive box drives the turntable to rise, and the granular raw material in the rolling groove on the turntable fits with the lower side of the built-in ring, and the large particles are completed through the crushing teeth on the lower side of the built-in ring cooperating with the rotation of the turntable. The raw materials are crushed. After the crushing is completed, the small particles of raw materials are discharged through the screen port and fall onto the sealing plate at the bottom. After the particles are added in batches, the motor on the lower side of the drive box is started to drive the stirring blades to rotate. The stirring blades mix the different particles. After the mixing is completed, the electric telescopic rod is started to descend. The electric telescopic rod drives the sealing plate to descend, and the particles slide outward from the side of the sealing plate through the arc surface on the upper side of the sealing plate, so that the particles enter the vertical furnace body. The device has a simple structure and is easy to operate. The crushing function is added through the feeding mechanism, which is convenient for the crushing of particles and mixing. It is easy to operate and can mix the raw materials before discharging to avoid uneven distribution. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the sleeve of the utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the mixing cylinder of the utility model;

[0017] Figure 4 This is a schematic diagram of the turntable structure of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the mixing cylinder of the utility model when viewed from above.

[0019] In the figure: 1. sleeve; 2. vertical furnace body; 3. support leg; 4. material inlet; 5. sealing plate; 6. mixing cylinder; 7. material guide port; 8. bracket; 9. stirring blade; 10. built-in ring; 11. fixing sleeve; 12. turntable; 13. drive box; 14. drive box; 15. rolling trough; 16. screening port; 17. electric telescopic rod. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0021] Embodiment 1

[0022] See also Figures 1 to 5 The utility model provides an embodiment: a high-quality pelletizing vertical furnace, comprising a sleeve 1, a vertical furnace body 2, a mixing cylinder 6, a fixing sleeve 11 and a driving box 13, wherein the sleeve 1 is sleeved and fixed at the upper end opening of the vertical furnace body 2, the mixing cylinder 6 is fixed to the inner top end of the sleeve 1, the fixing sleeve 11 is fixed to the inner top end of the mixing cylinder 6, an inner side of the fixing sleeve 11 is fixed with a built-in ring 10, a lower end annular array of the fixing sleeve 11 is provided with a screening port 16, and the driving box 13 is fixed to the inner lower end of the mixing cylinder 6 through a bracket 8.

[0023] Furthermore,

[0024] A support leg 3 is fixed to the outside of the vertical furnace body 2. There are three support legs 3 in total, and the three support legs 3 are distributed in a circular array. An anti-skid pad is fixed to the lower end of the support leg 3. The support leg 3 is used to support the placement of the vertical furnace body 2. The anti-skid pad increases friction and ensures the stability of the support.

[0025] Furthermore,

[0026] The upper end recess of the sleeve 1 is provided with a feed inlet 4 , and the upper end of the mixing barrel 6 is provided with a material guide port 7 , and the material guide port 7 corresponds to the feed inlet 4 , and the raw materials are introduced into the mixing barrel 6 through the feed inlet 4 and the material guide port 7 .

[0027] Furthermore,

[0028] The lower end surface of the built-in ring 10 is provided with crushing teeth in an annular array, and the crushing teeth of the built-in ring 10 correspond to the rolling grooves 15 , and the granular raw materials in the rolling grooves 15 are crushed and processed by the crushing teeth.

[0029] Embodiment 2

[0030] See also Figures 1 to 5The utility model provides an embodiment: a high-quality pelletizing ore vertical furnace, comprising a sleeve 1, a vertical furnace body 2, a mixing barrel 6, a fixing sleeve 11 and a driving box 13, a driving box 14 is slidably installed in the upper end opening of the driving box 13, a turntable 12 is rotatably installed on the upper end of the driving box 14 through a rotating shaft, a rolling groove 15 is provided on the outer side of the upper end surface of the turntable 12, a sealing plate 5 is provided at the lower end opening of the mixing barrel 6, a stirring blade 9 is provided at the inner bottom end of the mixing barrel 6, electric telescopic rods 17 are embedded and installed on both sides of the inner bottom end of the mixing barrel 6, and the lower end of the electric telescopic rod 17 is fixed on the sealing plate 5.

[0031] Furthermore,

[0032] The turntable 12 is located inside the fixed sleeve 11 , and the rolling groove 15 corresponds to the screening opening 16 . The raw material particles sliding outward from the turntable 12 are screened through the rolling groove 15 of the fixed sleeve 11 , so that large particles remain in the rolling groove 15 .

[0033] Furthermore,

[0034] A cylinder is fixed in the upper opening of the driving box 13, and the top of the cylinder is fixed on the driving box 14. A motor is provided at the lower end of the driving box 13, and the motor output shaft is connected to the stirring blade 9. The driving box 14 is driven to rise and fall through the cylinder, and the driving box 14 drives the turntable 12 to rise and fall, and the motor at the lower end of the driving box 13 drives the stirring blade 9 to rotate.

[0035] Furthermore,

[0036] The middle of the upper end of the rotating disk 12 and the sealing plate 5 are both convexly designed, and the convex structure design allows the granular raw materials to slide outwards, making it easy to unload.

[0037] During the operation of the utility model, the external power supply is connected, and the operator starts the device through the external control device, and the raw material particles are introduced into the notch on the upper side of the sleeve 1, so that the raw material passes through the feed port 4 and the guide port 7 and is introduced into the upper side of the turntable 12. At this time, the raw material rolls to both sides due to the convex arc surface of the turntable 12, and the raw material particles are screened through the screening port 16 of the fixed sleeve 11, so that larger particles remain in the inside of the rolling groove 15, and then the cylinder on the upper side of the drive box 13 is started to drive the drive box 14 to lift, and the drive box 14 drives the turntable 12 to rise, and the granular raw material in the rolling groove 15 on the turntable 12 is connected with the built-in ring The lower side of 10 is fitted, and the crushing teeth on the lower side of the built-in ring 10 cooperate with the rotation of the turntable 12 to complete the crushing of large particles. After the crushing is completed, the small particles are discharged through the sieve port 16, and the small particles fall onto the sealing plate 5 at the bottom. When the particles are added in batches, the motor on the lower side of the drive box 13 is started to drive the stirring blade 9 to rotate, and the stirring blade 9 mixes the different particles. After the mixing is completed, the electric telescopic rod 17 is started to descend, and the electric telescopic rod 17 drives the sealing plate 5 to descend, and the particles slide outward from the side of the sealing plate 5 through the arc surface on the upper side of the sealing plate 5, so that the particles enter the vertical furnace body 2.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-quality pelletizing shaft furnace, comprising a sleeve (1), a shaft furnace body (2), a mixing cylinder (6), a fixing sleeve (11) and a driving box (13), characterized in that: The sleeve (1) is sleeved and fixed at the upper end opening of the vertical furnace body (2); the mixing cylinder (6) is fixed at the inner top end of the sleeve (1); the fixing sleeve (11) is fixed at the inner top end of the mixing cylinder (6); an inner ring (10) is fixed on the inner side of the fixing sleeve (11); a sieving opening (16) is provided in an annular array at the lower end of the fixing sleeve (11); the driving box (13) is fixed at the inner lower end of the mixing cylinder (6) through a bracket (8); and the upper end of the driving box (13) is provided with a A driving box (14) is slidably installed in the mouth, a turntable (12) is rotatably installed on the upper end of the driving box (14) via a rotating shaft, a rolling groove (15) is provided on the outer side of the upper end surface of the turntable (12), a sealing plate (5) is provided at the lower end opening of the mixing cylinder (6), a stirring blade (9) is provided at the inner bottom end of the mixing cylinder (6), electric telescopic rods (17) are embedded and installed on both sides of the inner bottom end of the mixing cylinder (6), and the lower end of the electric telescopic rod (17) is fixed on the sealing plate (5).

2. A high-quality pelletizing shaft furnace according to claim 1, characterized in that: A support leg (3) is fixed to the outer side of the vertical furnace body (2), and there are three support legs (3) in total, and the three support legs (3) are distributed in a circular array, and an anti-slip pad is fixed to the lower end of the support leg (3).

3. The high-quality pelletizing shaft furnace according to claim 1, characterized in that: A material inlet (4) is provided in the recess at the upper end of the sleeve (1), and a material guide port (7) is provided at the upper end of the mixing cylinder (6), and the material guide port (7) corresponds to the material inlet (4).

4. The high-quality pelletizing shaft furnace according to claim 1, characterized in that: The lower end surface of the built-in ring (10) is provided with crushing teeth in an annular array, and the crushing teeth of the built-in ring (10) correspond to the rolling grooves (15).

5. The high-quality pelletizing shaft furnace according to claim 1, characterized in that: The rotating disk (12) is located on the inner side of the fixed sleeve (11), and the rolling groove (15) corresponds to the screening opening (16).

6. The high-quality pelletizing shaft furnace according to claim 1, characterized in that: A cylinder is fixed in the upper opening of the driving box (13), and the top end of the cylinder is fixed on the driving box (14). A motor is provided at the lower end of the driving box (13), and the output shaft of the motor is connected to the stirring blade (9).

7. The high-quality pelletizing shaft furnace according to claim 1, characterized in that: The middle parts of the upper ends of the rotating disk (12) and the sealing plate (5) are both convex in design.

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