Fuel adding device of sintering machine

Abstract

The utility model relates to a fuel adding device of a sintering machine. The fuel adding device comprises a storage bin, a distributing device, a stirrer and a supporting frame. The two ends of the storage bin are fixedly connected with the supporting frame. The distributor comprises a cylinder, the upper portion of the cylinder is connected with the bottom of the storage bin, the two ends of the cylinder are fixedly connected with a supporting frame, a rotating shaft is arranged in the cylinder and fixedly connected with the supporting frame through a bearing seat, and one end of the rotating shaft is connected with an output shaft of a first motor. A plurality of scraping plates are uniformly distributed on the rotating shaft; a discharge hole is formed in the bottom of the cylinder; the stirrer comprises a stirring shaft, a plurality of stirring tooth sets are evenly distributed on the stirring shaft, and every two adjacent stirring tooth sets are arranged in a staggered mode. The supporting frame is arranged on a sintering machine rack. During application, fuel enters the distributor through the storage bin, the distributor distributes the fuel on the surface of a mixture on a sintering trolley, then the fuel is stirred through the stirrer, and finally the fuel content in the mixture on the surface layer is increased.

Description

Technical Field

[0001] The utility model belongs to the technical field of sintering machine feeding, and particularly relates to a fuel adding device for a sintering machine. Background Art

[0002] In the sintering production process, iron ore powder, flux, pulverized coal or coke powder (fuel), etc. are mixed with water in a certain proportion to form a mixture, and then sintered.

[0003] The process of sintering the mixture on the sintering machine trolley is as follows: the mixture is distributed on the sintering machine trolley with a certain thickness, then the solid fuel in the mixture is ignited by an ignition furnace, and air is drawn under the grate bars at the bottom of the sintering machine trolley to form a negative pressure. Under the action of the negative pressure, the mixture burns from top to bottom. In this way, at a high temperature of 1200°C, the mixture is sintered into sinter.

[0004] Generally, the mixture on the surface layer cannot be effectively sintered due to the short time of bearing high temperature. The sinter that does not meet the quality requirements is called returned ore, and the returned ore must be returned for sintering again, which affects the sintering yield, reduces the sintering output, and consumes energy and cost.

[0005] The current process is to increase the fuel content of the surface layer mixture to make it burn fully, provide sufficient heat, and conduct effective sintering. The existing feeder can only arrange the fuel on the surface of the surface layer mixture and cannot achieve full mixing of the fuel and the surface layer mixture. Summary of the Invention

[0006] The utility model provides a fuel adding device for a sintering machine, which can stir and mix materials while feeding, and solve the above problems existing in the background art.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A fuel adding device for a sintering machine includes a storage bin, a feeder, a stirrer, and a support frame; both ends of the storage bin are fixedly connected to the support frame;

[0009] The feeder includes a cylinder. The upper part of the cylinder is connected to the bottom of the storage bin. Both ends of the cylinder are fixedly connected to the support frame. A rotating shaft is arranged inside the cylinder. The rotating shaft is fixedly connected to the support frame through a bearing seat. One end of the rotating shaft is connected to the output shaft of a first motor; a plurality of scraping plates are evenly arranged on the rotating shaft; an outlet is arranged at the bottom of the cylinder;

[0010] The stirrer includes a stirring shaft. A plurality of stirring tooth groups are evenly arranged on the stirring shaft, and two adjacent stirring tooth groups are arranged staggeredly; the stirring shaft is fixedly connected to the support frame through a bearing seat. One end of the stirring shaft is connected to the output shaft of a second motor;

[0011] The support frame is arranged on the sintering machine frame.

[0012] A fuel adding device for a sintering machine further comprises a lifting device and a fixing frame; the lifting device includes a lead screw, a nut and a lifting motor; the nut is arranged on the lead screw, and the nut is connected with the support frame; the lifting motor is connected with the lead screw to drive it to rotate; the fixing frame is fixedly arranged on the sintering machine frame, and the support frame is slidably connected with the fixing frame.

[0013] Both the first motor and the second motor are frequency conversion motors.

[0014] The stirring teeth of the stirring tooth group are composed of a rod part and a hook part; the rod part is fixedly connected with the stirring shaft.

[0015] The support frame is connected with the sintering machine frame by bolts.

[0016] A row of material dredging rods are arranged above the sintering machine trolley, and the upper ends of the material dredging rods are fixedly connected with the support frame.

[0017] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0018] 1) When the utility model is applied, the fuel enters the distributor from the storage bin, the distributor arranges the fuel on the surface of the mixture on the sintering trolley, and then is stirred by the stirrer, finally improving the fuel content in the surface mixture.

[0019] 2) The utility model can lift the storage bin, the distributor and the stirrer through the lifting device. On the one hand, it is beneficial to overhaul the equipment, and on the other hand, it can adjust the depth of the stirring teeth of the stirrer penetrating into the mixture.

[0020] 3) The stirring teeth of the utility model are designed with a rod part and a hook part, and the hook part is beneficial to penetrate into the mixture, better stir and improve the stirring effect.

[0021] 4) The material dredging rods of the utility model can form material grooves on the surface of the mixture, increase the contact area between the fuel and the mixture, and be beneficial to the mixing of the fuel and the mixture. Description of the Drawings

[0022] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0023] Figure 1 is a schematic structural diagram of a fuel adding device for a sintering machine of the present utility model.

[0024] Figure 2 is a side view of the present utility model.

[0025] Figure 3 This is a cross-sectional view of the distributor of the present utility model.

[0026] Explanation of the reference numerals in the drawings:

[0027] In the figure: 1. Storage bin; 2. Distributor; 3. Stirrer; 4. Support frame; 5. Lifting device; 6. Fixed frame; 7. Material dredging rod; 8. Sintering machine trolley; 21. Cylinder; 22. Rotating shaft; 23. Scraper; 24. First motor; 25. Discharge port; 31. Stirring shaft; 32. Stirring tooth group; 33. Rod part; 34. Hook part; 35. Second motor; 51. Lead screw; 52. Nut; 53. Lifting motor; A. Mixed material; B. Fuel; C. Running direction of the sintering machine trolley Detailed implementation manners

[0028] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments may be combined with each other.

[0029] The following further describes the detailed implementation manners of the present utility model with reference to the drawings:

[0030] Embodiment 1

[0031] As Figures 1 to 3 shown, a fuel adding device of a sintering machine is arranged above the sintering machine trolley. The device includes a storage bin 1, a distributor 2, a stirrer 3, and a support frame 4. Both ends of the storage bin 1 are fixedly connected to the support frame 4.

[0032] The distributor 2 includes a cylinder 21. The upper part of the cylinder 21 is connected to the bottom of the storage bin 1. Both ends of the cylinder 21 are fixedly connected to the support frame 4. A rotating shaft 22 is arranged inside the cylinder 21. The rotating shaft 22 is fixedly connected to the support frame 4 through a bearing seat. One end of the rotating shaft 22 is connected to the output shaft of the first motor 24. A plurality of scrapers 23 are evenly arranged on the rotating shaft 22. A discharge port 25 is arranged at the bottom of the cylinder 21.

[0033] The stirrer 3 includes a stirring shaft 31. A plurality of stirring tooth groups 32 are evenly arranged on the stirring shaft 31. Adjacent two stirring tooth groups 32 are arranged staggeredly. The stirring teeth of the stirring tooth group 32 are composed of a rod part 33 and a hook part 34. The rod part 33 is fixedly connected to the stirring shaft 31. The stirring shaft 31 is fixedly connected to the support frame 4 through a bearing seat. One end of the stirring shaft 31 is connected to the output shaft of the second motor 35. The support frame 4 is connected to the sintering machine frame through bolts. Both the first motor 24 and the second motor 35 are frequency conversion motors.

[0034] The working process of the present utility model is as follows:

[0035] 1) Pour the fuel into the storage bin 1;

[0036] 2) The fuel in the storage bin 1 is discharged through the discharge port 25 at the bottom of the cylinder and is arranged on the surface of the mixture on the sintering trolley.

[0037] 3) The stirrer 3 stirs to fully mix the fuel and the mixture on the surface layer.

[0038] Embodiment 2

[0039] As Figures 1 to 3 shown, on the basis of Embodiment 1, this embodiment further includes a lifting device 5 and a fixing frame 6. The lifting device 5 includes a lead screw 51, a nut 52 and a lifting motor 53. The nut 52 is arranged on the lead screw 51. The nut 52 is connected to the support frame 4, and the lifting motor 53 is connected to the lead screw 51 to drive its rotation. The fixing frame 6 is fixedly arranged on the sintering machine frame, and the support frame 4 is slidably connected to the fixing frame 6.

[0040] When equipment maintenance is required or the depth of the mixing teeth penetrating into the mixture needs to be adjusted, the lead screw 51 can be driven to rotate by the lifting motor 53, and the nut 52 moves up and down to drive the support frame 4 to lift. The support frame 4 is slidably connected to the fixing frame 6 and can lift up and down along the fixing frame, with high stability.

[0041] In this embodiment, a row of material loosening rods 7 are arranged at equal intervals above the sintering machine trolley. The upper end of the material loosening rod + is fixedly connected to the support frame 4.

[0042] Before the distributor 2 distributes the material, the material loosening rod 7 loosens the mixture on the sintering machine trolley to form material grooves; then the distributor 2 distributes the material, which can increase the contact area between the fuel and the mixture and improve the mixing effect.

[0043] The preferred embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solutions of the present invention, and these simple modifications all fall within the protection scope of the present invention. In addition, it should be noted that in the above specific embodiments, the various specific technical features described can be combined in any suitable way without conflict. To avoid unnecessary repetition, the present invention does not separately describe various possible combination methods. In addition, any combination can be made between the various different embodiments of the present invention as long as it does not violate the idea of the present invention, and it should also be regarded as the content disclosed by the present invention.

Claims

1. A fuel adding device for a sintering machine, characterized in that, It includes a storage bin, a distributor, a stirrer, and a support frame; both ends of the storage bin are fixedly connected to the support frame; The distributor includes a cylinder. The upper part of the cylinder is connected to the bottom of the storage bin. Both ends of the cylinder are fixedly connected to the support frame. A rotating shaft is provided inside the cylinder. The rotating shaft is fixedly connected to the support frame through a bearing seat. One end of the rotating shaft is connected to the output shaft of the first motor; a plurality of scraping plates are evenly arranged on the rotating shaft; a discharge port is provided at the bottom of the cylinder; The stirrer includes a stirring shaft. A plurality of stirring tooth groups are evenly arranged on the stirring shaft, and two adjacent stirring tooth groups are arranged staggeredly; the stirring shaft is fixedly connected to the support frame through a bearing seat. One end of the stirring shaft is connected to the output shaft of the second motor; The support frame is arranged on the sintering machine frame.

2. The fuel adding device of a sintering machine according to claim 1, characterized in that, It further includes a lifting device and a fixing frame; the lifting device includes a lead screw, a nut, and a lifting motor; the nut is arranged on the lead screw and is connected to the support frame; the lifting motor is connected to the lead screw and drives it to rotate; The fixing frame is fixedly arranged on the sintering machine frame, and the support frame is slidably connected to the fixing frame.

3. The fuel adding device of a sintering machine according to claim 1, characterized in that, Both the first motor and the second motor are variable-frequency motors.

4. The fuel adding device of a sintering machine according to claim 1, characterized in that, The stirring teeth of the stirring tooth group are composed of a rod part and a hook part; the rod part is fixedly connected to the stirring shaft.

5. The fuel adding device for a sintering machine according to claim 1, characterized in that, The support frame is connected to the sintering machine frame through bolts.

6. The fuel adding device of a sintering machine according to claim 1, characterized in that, A row of material dredging rods is arranged above the sintering machine trolley, and the upper ends of the material dredging rods are fixedly connected to the support frame.

Images