Iron ore pre-reduction sintering device

Abstract

The utility model relates to the technical field of iron ore sintering, in particular to an iron ore pre-reduction sintering device, which is characterized in that the right end of a first sintering box is fixedly connected with a bracket, the upper end of the bracket is fixedly connected with a second sintering box, and the upper end of the second sintering box is hermetically connected with a material guide screening box; according to the iron ore feeding and screening device, iron ore can be fed under the action of the arranged material guiding and screening box, small iron ore can be screened and fall under the action of the arranged screening inclined plate, and therefore the iron ore feeding and screening device has the advantages that the iron ore feeding and screening device is simple in structure, convenient to operate and high in practicability. According to the iron ore sintering device, iron ore is conveyed into the first sintering box and enters the second sintering box, a rotating wheel can rotate through rotation of a motor, a driven gear can be shifted through the effect of an arranged fixed gear, so that a second stirring impeller arranged inside can stir small iron ore, and the sintering efficiency of the small iron ore is improved.

Description

Technical Field

[0001] The utility model relates to an iron ore pre-reduction sintering device, belonging to the technical field of iron ore sintering. Background Art

[0002] Iron ore sintering is one of the main methods of iron ore agglomeration. The iron concentrate obtained by beneficiation of lean iron ore, the powder ore produced in the process of crushing and screening of rich iron ore, the iron-containing powder, flux and fuel recovered in the production are mixed in the required proportion, added with water to form a granular sintering mixture, which is spread on the sintering trolley and sintered into agglomerates through ignition and exhaust. Iron ore sintering can improve the grade of iron, improve the metallurgical properties of iron ore, reduce charge consumption, increase blast furnace output and reduce energy consumption, improve slag fluidity and reduce reduction degree, prevent blockage and reduce environmental pollution, rationally utilize resources and recycle iron-containing waste, and ensure the state of ore entering the blast furnace.

[0003] The existing patent number is CN219972404U, which is an iron ore pre-reduction sintering device. This device continuously guides the block iron ore into the buffer bin by installing a pushing device at the bottom of the inner cavity of the buffer bin. The small particles of iron ore fall into the first storage box through the filter screen, while the large particles of iron ore are retained on the filter screen and are reciprocally pushed into the discharge frames on the left and right sides of the buffer bin by the pushing device, and fall into the trolley through the second storage box, while the small particles of iron ore can be laid on the top of the large particles of iron ore. When the trolley passes through the combustion chamber, the large particles of iron ore are trapped on the filter screen. After the burner is turned on, the small particles of iron ore on the top are more easily ignited, so that the iron ore can be sintered better. However, when this device is in use, small pieces of iron ore and large pieces of iron ore are sintered at the same time. This method will affect the sintering degree of iron ores of different sizes, reduce the sintering effect, and cannot distinguish and sinter iron ores of different sizes. Moreover, when sintering the iron ore, the iron ore in the trolley is difficult to turn over, which makes the sintering effect of the iron ore at the bottom low, and it is easy for multiple pieces of iron ore to fit together, thereby affecting the sintering uniformity of the iron ore. Utility Model Content

[0004] The purpose of the utility model is to provide an iron ore pre-reduction sintering device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] An iron ore pre-reduction sintering device comprises a first sintering box, a support frame and a second sintering box, wherein the right end of the first sintering box is fixedly connected to the support frame, the upper end of the support frame is fixedly connected to the second sintering box, the upper end of the second sintering box is sealedly connected to a material guiding and screening box, the lower inner side of the material guiding and screening box is fixedly connected to a screening inclined plate, the interior of the second sintering box is rotatably connected to a rotating wheel, the interior of the first sintering box is rotatably connected to a conveying crawler, the outer side of the conveying crawler is fixedly connected to a trolley, and the interior of the trolley is rotatably connected to a first flipping impeller.

[0007] Furthermore, a material guiding boss is provided on the upper left side of the interior of the material guiding and screening box.

[0008] Furthermore, a motor is fixedly connected to the front end of the second sintering box, and the output shaft of the motor is fixedly connected to the rotating wheel. A fixed gear is rotatably connected to the middle position of the front end surface of the rotating wheel, and the fixed gear is fixedly connected to the second sintering box. A driven gear is meshedly connected to the outer side of the fixed gear, and the driven gear is rotatably connected to the rotating wheel. A second flipping impeller is rotatably connected to the inner side of the rotating wheel, and the second flipping impeller is fixedly connected to the driven gear.

[0009] Furthermore, a first burner is fixedly connected to the right end of the second sintering box, and a temperature-resistant mesh plate is fixedly connected between the first burner and the second sintering box.

[0010] Furthermore, the left end of the material guiding and screening box is sealedly connected to a feeding frame, the feeding frame is sealedly connected to the first sintering box, and the lower end of the feeding frame is fixedly connected to an electric door.

[0011] Furthermore, a second burner is fixedly connected to the upper end of the first sintering box.

[0012] Furthermore, the upper sides of the front and rear end walls inside the first sintering box are fixedly connected with fixed tooth plates, the lower ends of the fixed tooth plates are meshedly connected with transmission gears, the transmission gears are rotationally connected to the trolley, and the transmission gears are fixedly connected to the first flipping impeller.

[0013] The beneficial effects of the utility model are:

[0014] The utility model can process the iron ore by setting the function of the guide screening box, and can screen and drop the smaller iron ore by the function of the screening inclined plate, and enter the second sintering box, and can make the rotating wheel rotate by rotating the motor, and can turn the driven gear by the function of the fixed gear, so that the second turning impeller arranged inside can rotate, so that the smaller iron ore can be turned, and can be quickly and continuously sintered for the small iron ore by cooperating with the function of the first burner, so as to improve the sintering efficiency of the small iron ore, and can turn the large iron ore by the function of the feeding frame The iron ore is fed into the first sintering box to the left, and the loading can be controlled by the electric door so that the large pieces of iron ore can fall into the trolley accurately, and the trolley can be transported by the action of the conveying crawler. At the same time, the large pieces of iron ore can be sintered with the action of the second burner, and with the rotation of the conveying crawler, the driven gear can rotate at the lower end of the fixed tooth plate, so that the first flipping impeller arranged inside can rotate, and then the large pieces of iron ore can be flipped, so as to avoid uneven sintering caused by the large pieces of iron ore sticking to each other and piling up, and to avoid the uneven sintering of the upper and lower sides in a static state. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the specific embodiments of the present invention and do not constitute a limitation to the present invention.

[0016] Figure 1 This is a front view of an iron ore pre-reduction sintering device of the utility model;

[0017] Figure 2 This is a cross-sectional view of the installation structure of a material guide screening box of an iron ore pre-reduction sintering device of the utility model;

[0018] Figure 3 This is a cross-sectional view of the installation structure of the second sintering box and the first burner of an iron ore pre-reduction sintering device of the utility model;

[0019] Figure 4 This is a cross-sectional view of the installation structure of the first sintering box of an iron ore pre-reduction sintering device of the utility model;

[0020] Numbers in the figure: 1. first sintering box; 2. support frame; 3. second sintering box; 4. material guide and screening box; 5. screening inclined plate; 6. rotating wheel; 7. conveying crawler; 8. trolley; 9. first flip impeller; 10. material guide boss; 11. motor; 12. fixed gear; 13. driven gear; 14. second flip impeller; 15. first burner; 16. temperature-resistant mesh plate; 17. feeding frame; 18. electric door; 19. second burner; 20. fixed gear plate; 21. transmission gear. DETAILED DESCRIPTION

[0021] 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.

[0022] Example 1 Please refer to Figure 1-Figure 4 , the utility model provides a technical solution:

[0023] An iron ore pre-reduction sintering device comprises a first sintering box 1, a support frame 2 and a second sintering box 3, wherein the right end of the first sintering box 1 is fixedly connected to the support frame 2, the upper end of the support frame 2 is fixedly connected to the second sintering box 3, the upper end of the second sintering box 3 is sealedly connected to a material guiding and screening box 4, the lower inner side of the material guiding and screening box 4 is fixedly connected to a screening inclined plate 5, the inner part of the second sintering box 3 is rotatably connected to a rotating wheel 6, the inner upper left side of the material guiding and screening box 4 is provided with a material guiding boss 10, the front end of the second sintering box 3 is fixedly connected to a motor 11, the output shaft of the motor 11 is fixedly connected to the rotating wheel 6, a fixed gear 12 is rotatably connected at the middle position of the front end surface of the rotating wheel 6, the fixed gear 12 is fixedly connected to the second sintering box 3, the outer side of the fixed gear 12 is meshedly connected to a driven gear 13, the driven gear 13 is rotatably connected to the rotating wheel 6, and the inner side of the rotating wheel 6 rotates A second flipping impeller 14 is connected, and the second flipping impeller 14 is fixedly connected to the driven gear 13. A first burner 15 is fixedly connected to the right end of the second sintering box 3, and a temperature-resistant mesh plate 16 is fixedly connected between the first burner 15 and the second sintering box 3. The material guide screening box 4 is provided to feed the iron ore, and the screening inclined plate 5 is provided to screen and drop the smaller iron ore and enter the second sintering box 3. The rotating wheel 6 is rotated by rotating the motor 11, and the driven gear 13 is shifted by the fixed gear 12 to rotate the second flipping impeller 14 provided inside, so that the smaller iron ore can be flipped, and the small iron ore can be sintered quickly and continuously with the first burner 15, thereby improving the sintering efficiency of the small iron ore.

[0024] Example 2 Please refer to Figure 1 and Figure 4The difference between this embodiment and the embodiment 1 is that: the first sintering box 1 is rotatably connected with a conveying crawler 7 inside, a trolley 8 is fixedly connected to the outside of the conveying crawler 7, and the trolley 8 is rotatably connected to the inside of the trolley 8. The left end of the material guiding and screening box 4 is sealed with a feeding frame 17, and the feeding frame 17 is sealed with the first sintering box 1. The lower end of the feeding frame 17 is fixedly connected with an electric door 18, and the upper end of the first sintering box 1 is fixedly connected with a second burner 19. The upper sides of the front and rear end walls inside the first sintering box 1 are fixedly connected with fixed tooth plates 20, and the lower end of the fixed tooth plates 20 is meshedly connected with a transmission gear 21, which is rotatably connected to the trolley 8, and the transmission gear 21 is fixedly connected to the first flipping impeller 9. The feeding frame 17 can be used to feed large pieces of iron ore to the left into the first sintering box 1, and the electric door 18 can be used to control the loading of the large pieces of iron ore so that the large pieces of iron ore can fall accurately into the trolley 8, and the trolley 8 can be transported by the conveying track 7. At the same time, the large pieces of iron ore can be sintered with the help of the second burner 19, and the driven gear 13 can rotate at the lower end of the fixed tooth plate 20 with the rotation of the conveying track 7, so that the first flipping impeller 9 arranged inside can rotate, and then the large pieces of iron ore can be flipped, so as to avoid uneven sintering caused by the large pieces of iron ore sticking to each other and piling up, and to avoid the uneven sintering of the upper and lower parts in a static state.

[0025] Working principle of the utility model: when the device is in use, the material guide screening box 4 is provided to feed the iron ore, and the screening inclined plate 5 is provided to screen and drop the smaller iron ore, and enter the second sintering box 3, and the rotating wheel 6 is rotated by rotating the motor 11, and the driven gear 13 is turned by the fixed gear 12, so that the second turning impeller 14 provided inside can rotate, and then the smaller iron ore can be turned, and the first burner 15 can be used to quickly and continuously sinter the small iron ore, thereby improving the sintering efficiency of the small iron ore, and the feeding frame 17 is used to Large pieces of iron ore can be fed to the left into the first sintering box 1, and the loading can be controlled by the electric door 18 so that the large pieces of iron ore can fall accurately into the trolley 8, and the trolley 8 can be transported by the conveying crawler 7. At the same time, the large pieces of iron ore can be sintered with the action of the second burner 19, and with the rotation of the conveying crawler 7, the driven gear 13 can rotate at the lower end of the fixed tooth plate 20, so that the first flipping impeller 9 arranged inside can rotate, and then the large pieces of iron ore can be flipped, so as to avoid uneven sintering caused by the large pieces of iron ore sticking to each other and piling up, and to avoid the uneven sintering of the upper and lower sides in a static state.

[0026] 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. An iron ore pre-reduction sintering device, comprising a first sintering box (1), a support frame (2) and a second sintering box (3), characterized in that: The right end of the first sintering box (1) is fixedly connected to a support frame (2), the upper end of the support frame (2) is fixedly connected to a second sintering box (3), the upper end of the second sintering box (3) is sealedly connected to a material guide and screening box (4), the lower inner side of the material guide and screening box (4) is fixedly connected to a screening inclined plate (5), the interior of the second sintering box (3) is rotatably connected to a rotating wheel (6), the interior of the first sintering box (1) is rotatably connected to a conveying crawler (7), the outer side of the conveying crawler (7) is fixedly connected to a trolley (8), and the interior of the trolley (8) is rotatably connected to a first flipping impeller (9).

2. The iron ore pre-reduction sintering device according to claim 1, characterized in that: A material guiding boss (10) is provided on the upper left side of the interior of the material guiding and screening box (4).

3. The iron ore pre-reduction sintering device according to claim 1, characterized in that: A motor (11) is fixedly connected to the front end of the second sintering box (3); an output shaft of the motor (11) is fixedly connected to a rotating wheel (6); a fixed gear (12) is rotatably connected to the middle position of the front end surface of the rotating wheel (6); the fixed gear (12) is fixedly connected to the second sintering box (3); a driven gear (13) is meshedly connected to the outer side of the fixed gear (12); the driven gear (13) is rotatably connected to the rotating wheel (6); a second flipping impeller (14) is rotatably connected to the inner side of the rotating wheel (6); and the second flipping impeller (14) is fixedly connected to the driven gear (13).

4. The iron ore pre-reduction sintering device according to claim 1, characterized in that: The right end of the second sintering box (3) is fixedly connected to a first burner (15), and a temperature-resistant mesh plate (16) is fixedly connected between the first burner (15) and the second sintering box (3).

5. The iron ore pre-reduction sintering device according to claim 1, characterized in that: The left end of the material guiding and screening box (4) is sealedly connected to a feeding frame (17), the feeding frame (17) is sealedly connected to the first sintering box (1), and the lower end of the feeding frame (17) is fixedly connected to an electric door (18).

6. The iron ore pre-reduction sintering device according to claim 1, characterized in that: A second burner (19) is fixedly connected to the upper end of the first sintering box (1).

7. The iron ore pre-reduction sintering device according to claim 1, characterized in that: The upper sides of the front and rear end walls of the first sintering box (1) are fixedly connected with fixed tooth plates (20), and the lower ends of the fixed tooth plates (20) are meshingly connected with transmission gears (21), the transmission gears (21) are rotationally connected to the trolley (8), and the transmission gears (21) are fixedly connected to the first flipping impeller (9).

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