Pulverized coal conveying device of sintering furnace

Abstract

The utility model belongs to the technical field of pulverized coal conveying, and particularly relates to a sintering furnace pulverized coal conveying device which comprises a base, supporting frames are fixedly installed on the left side and the right side of the top of the base respectively, a conveying cylinder is fixedly installed on the tops of the two supporting frames, and a rotating shaft is rotatably installed in the conveying cylinder. The quantitative feeding assembly is installed on the connecting box, the stirring assembly is installed on the material storage box, pulverized coal needing to be conveyed is stacked in the material storage box, and the pulverized coal in the material storage box is added into the conveying barrel through the quantitative feeding assembly at a uniform speed; and blockage of the discharge port caused by discontinuous conveying in the conveying cylinder is avoided, and the pulverized coal in the storage box is stirred and scattered through the stirring assembly, so that accumulation and blockage of the pulverized coal in the storage box are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coal powder transportation, in particular to a coal powder transportation device for a sintering furnace. Background Art

[0002] Pulverized coal, which refers to coal with a particle size of less than 0.5 mm, is the most commonly used additive in cast iron molding sand. In recent years, pulverized coal has been combined with clay to create a commercial product for sale abroad. Adding pulverized coal to green sand for cast iron can prevent surface sand adhesion defects, improve surface finish, reduce sand inclusions, and improve the sand's ability to disintegrate. For green ductile iron castings, it can also effectively prevent the formation of subcutaneous pores. A circular vortex burner can be used, eliminating the need for air preheating.

[0003] A Chinese patent (authorization announcement number: CN 219155957 U, authorization announcement date: 2023.06.09) proposes a pulverized coal conveying device for a sintering furnace. By starting a hot air blower to generate hot air, the hot air is sent into the interior of a pulverized coal conveying barrel through the cooperation of a connecting pipe, a guide pipe, a diversion pipe and a connecting pipe. Then, when the motor is started, the circular shaft and spiral blades rotate, driving the pulverized coal inside the pulverized coal conveying barrel to move from left to right and flip, so that the hot air and the pulverized coal are fully in contact, accelerating the drying of the pulverized coal, and making it less likely for the pulverized coal to stick to the inner wall of the pulverized coal conveying barrel and the surface of the circular shaft and spiral blades, thereby ensuring the conveying amount of pulverized coal and improving the efficiency of pulverized coal conveying.

[0004] During the use of the above-mentioned coal powder conveying device, due to the high water content in the coal powder, there is a problem of coal powder accumulating in the feed hopper and causing blockage of the feed hopper. In addition, since the feed speed cannot be adjusted, there is a problem of discontinuous coal powder conveying inside the conveying device, which leads to blockage of the discharge port. For this reason, we propose a coal powder conveying device for a sintering furnace. Utility Model Content

[0005] In response to the deficiencies in the prior art, the utility model provides a sintering furnace coal powder conveying device, in which a quantitative feeding component is installed on the connecting box and a stirring component is installed on the storage box. The coal powder to be conveyed is piled in the storage box, and the coal powder inside the storage box is added to the conveying drum at a uniform speed through the quantitative feeding component, so as to avoid discontinuous conveying inside the conveying drum and causing blockage of the discharge port. The coal powder inside the storage box is stirred and dispersed through the stirring component, so as to avoid accumulation and blockage of coal powder inside the storage box, thereby solving the background problem.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions: a sintering furnace coal powder conveying device, including a base, support frames are fixedly installed on the left and right sides of the top of the base, two groups of conveying cylinders are fixedly installed on the top of the support frames, a rotating shaft is rotatably installed inside the conveying cylinder, and a spiral blade is fixedly connected to the outer surface of the rotating shaft, a mounting plate is fixedly installed on the left side of one group of the support frames, a driving motor 1 is fixedly installed on the top side of the mounting plate, an output shaft end of the driving motor 1 is fixedly connected to the left end of the rotating shaft, and a feed box is fixedly installed on the left side of the top of the conveying cylinder. A connecting box is fixedly installed on the top of the feed box, a storage box is fixedly installed on the top of the connecting box, a quantitative feeding assembly is installed on the connecting box, a stirring assembly is installed on the storage box, an air inlet assembly is installed on the top front side of the conveying cylinder, and an air outlet assembly is installed on the top rear side of the conveying cylinder; the quantitative feeding assembly includes a second drive motor, the second drive motor is fixedly installed on the front side of the connecting box, a second rotating rod is rotatably installed inside the connecting box, the front end of the second rotating rod is fixedly connected to the output shaft end of the second drive motor, and a plurality of scrapers are fixedly connected to the outer surface of the second rotating rod.

[0007] Preferably, the stirring assembly includes a driving motor three, which is fixedly installed on the front side of the storage box, and first rotating rods are rotatably installed on the left and right sides of the interior of the storage box, wherein the front end of one group of the first rotating rods is fixedly connected to the output shaft end of the driving motor three, the outer surfaces of the two groups of the first rotating rods are fixedly connected to a plurality of stirring blades, and the rear ends of the two groups of the first rotating rods are fixedly connected to pulleys, and a belt is tensioned and sleeved between the two groups of the pulleys.

[0008] Preferably, the air inlet assembly includes a hot air blower, which is fixedly installed on the top front side of the base, the output end of the hot air blower is fixedly connected to the air inlet pipe, the output end of the air inlet pipe is fixedly connected to a multi-way pipe, and a number of air inlets are opened on the top front side of the conveying cylinder, and the input ends of the several air inlets are fixedly connected to the multi-way pipe.

[0009] Preferably, the air outlet assembly includes a secondary filter box, a plurality of air outlet 1s are provided on the top rear side of the conveying cylinder, the output ends of the plurality of air outlet 1s are fixedly connected to the secondary filter box, and an air outlet 2 is provided on the top of the secondary filter box.

[0010] Preferably, a filter plate is fixedly mounted on both the air inlet and the air outlet.

[0011] Preferably, a discharge port is provided on the right side of the conveying cylinder.

[0012] The utility model provides a sintering furnace coal powder conveying device. Compared with the existing technology, it has the following features:

[0013] Beneficial effects:

[0014] 1. A sintering furnace coal powder conveying device is provided with a quantitative feeding component installed on the connecting box and a stirring component installed on the storage box. The coal powder to be conveyed is piled in the storage box, and the coal powder inside the storage box is added to the conveying cylinder at a uniform speed through the quantitative feeding component to avoid discontinuous conveying inside the conveying cylinder and causing blockage of the discharge port. The coal powder inside the storage box is stirred and dispersed by the stirring component to avoid accumulation and blockage of the coal powder inside the storage box. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the rear view structure of the main body of the utility model;

[0017] Figure 3 This is a schematic diagram of the front cross-sectional structure of the main body of the utility model;

[0018] Figure 4 This is a schematic diagram of the right side cross-sectional structure of the main body of the utility model;

[0019] Figure 5 For this utility model Figure 3 A magnified schematic diagram of the structure in the middle.

[0020] In the figure: 1. Base; 2. Support frame; 3. Mounting plate; 4. Drive motor 1; 5. Conveying cylinder; 6. Feed box; 7. Connecting box; 8. Storage box; 9. Multi-way pipe; 10. Secondary filter box; 11. Air outlet 1; 12. Air inlet pipe; 13. Hot air blower; 14. Discharge port; 15. Drive motor 2; 16. Drive motor 3; 17. First rotating rod; 18. Stirring blade; 19. Air outlet 2; 20. Air inlet; 21. Pulley; 22. Belt; 23. Rotating shaft; 24. Spiral blade; 25. Filter plate; 26. Second rotating rod; 27. Scraper plate. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-5The utility model provides a technical solution: a sintering furnace coal powder conveying device, including a base 1, support frames 2 are fixedly installed on the left and right sides of the top of the base 1, and a conveying drum 5 is fixedly installed on the top of the two groups of support frames 2. The interior of the conveying drum 5 is rotatably installed with a rotating shaft 23, and the outer surface of the rotating shaft 23 is fixedly connected with a spiral blade 24. The left side of one group of support frames 2 is fixedly installed with a mounting plate 3, and the top side of the mounting plate 3 is fixedly installed with a driving motor 4. The output shaft end of the driving motor 4 is fixedly connected to the left end of the rotating shaft 23. A feeding box 6 is fixedly installed on the left side of the top of the conveying drum 5, and a connecting box 7 is fixedly installed on the top of the feeding box 6. A storage box 8 is fixedly installed on the top of the connecting box 7. A quantitative feeding component is installed on the connecting box 7, and a stirring component is installed on the storage box 8. An air inlet component is installed on the front side of the top of the conveying drum 5, and an air outlet component is installed on the rear side of the top of the conveying drum 5.

[0023] The conveying device adds the coal powder inside the storage box 8 into the conveying drum 5 at a uniform speed through the quantitative feeding component on the connecting box 7, and in order to avoid the accumulation and blockage of the coal powder inside the storage box 8, the coal powder is stirred and dispersed by the stirring component. The rotating shaft 23 in the conveying drum 5 is driven by the driving motor 4, and the spiral blades 24 fixedly connected to the outer surface of the rotating shaft 23 spirally convey the coal powder. During the conveying process, the moisture in the coal powder is taken away by the air inlet component and the air outlet component to avoid the coal powder clogging the inside of the conveying drum 5.

[0024] The quantitative feeding assembly includes a second drive motor 15, which is fixedly installed on the front side of the connecting box 7. A second rotating rod 26 is rotatably installed inside the connecting box 7. The front end of the second rotating rod 26 is fixedly connected to the output shaft end of the second drive motor 15, and a plurality of scraper plates 27 are fixedly connected to the outer surface of the second rotating rod 26.

[0025] The second rotating rod 26 is rotated by driving the second motor 15 , thereby driving the plurality of scraper plates 27 to rotate around the second rotating rod 26 .

[0026] The stirring assembly includes a drive motor 3 16, which is fixedly installed on the front side of the storage box 8. First rotating rods 17 are rotatably installed on the left and right sides of the interior of the storage box 8, wherein the front end of one group of first rotating rods 17 is fixedly connected to the output shaft end of the drive motor 3 16, and the outer surfaces of the two groups of first rotating rods 17 are fixedly connected to a plurality of stirring blades 18, and the rear ends of the two groups of first rotating rods 17 are fixedly connected to pulleys 21, and a belt 22 is tensioned and sleeved between the two groups of pulleys 21.

[0027] A group of first rotating rods 17 is rotated by driving motor three 16. Since the rear ends of the two groups of first rotating rods 17 are fixedly connected to pulleys 21 and are tensioned and sleeved by belts 22, the two groups of first rotating rods 17 are driven to rotate synchronously, thereby driving the several stirring blades 18 on the two groups of first rotating rods 17 to stir.

[0028] The air inlet assembly includes a hot air blower 13, which is fixedly installed on the top front side of the base 1. The output end of the hot air blower 13 is fixedly connected to the air inlet pipe 12, and the output end of the air inlet pipe 12 is fixedly connected to the multi-way pipe 9. A number of air inlets 20 are opened on the top front side of the conveying cylinder 5, and the input ends of the several air inlets 20 are all fixedly connected to the multi-way pipe 9.

[0029] The air outlet assembly includes a secondary filter box 10, and a plurality of air outlets 11 are opened on the top rear side of the conveying cylinder 5. The output ends of the plurality of air outlets 11 are fixedly connected to the secondary filter box 10, and an air outlet 2 19 is opened on the top of the secondary filter box 10.

[0030] The hot air is output through the hot air blower 13, and the hot air is transported to the multi-way pipe 9 through the air inlet pipe 12, and is transported to each air inlet 20 through the multi-way pipe 9. The hot air is then transported to the secondary filter box 10 through several air outlets 11 and discharged through air outlet 2 19.

[0031] Filter plates 25 are fixedly installed on the air inlet 20 and the air outlet 11 to filter the coal powder.

[0032] A discharge port 14 is provided on the right side of the conveying cylinder 5 to discharge the conveyed coal powder.

[0033] Working principle: The conveying device rotates the second rotating rod 26 through the driving motor 2 15 on the connecting box 7, thereby driving a number of scrapers 27 to rotate around the second rotating rod 26, and the coal powder inside the storage box 8 is uniformly added to the conveying cylinder 5. In order to avoid the accumulation and blockage of coal powder inside the storage box 8, a group of first rotating rods 17 are rotated by the driving motor 3 16. Since the rear ends of the two groups of first rotating rods 17 are fixedly connected to the pulley 21 through the belt 22, the two groups of first rotating rods 17 are driven to rotate synchronously, thereby driving the two groups of first rotating rods 17 The pulverized coal is stirred and broken up by several stirring blades 18 on the conveying cylinder 5. The rotating shaft 23 in the conveying cylinder 5 is driven by a driving motor 4. The spiral blades 24 fixedly connected to the outer surface of the rotating shaft 23 spirally convey the pulverized coal. During the conveying process, hot air is output by the hot air blower 13. The hot air is conveyed to the multi-way pipe 9 through the air inlet pipe 12, and the hot air is conveyed to each air inlet 20 through the multi-way pipe 9. The hot air is then conveyed to the secondary filter box 10 through several air outlets 11 and discharged through the air outlet 2 19, thereby taking away the moisture in the pulverized coal and preventing the pulverized coal from clogging the inside of the conveying cylinder 5.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sintering furnace coal powder conveying device, comprising a base (1), characterized in that: The left and right sides of the top of the base (1) are fixedly mounted with support frames (2), the tops of the two groups of support frames (2) are fixedly mounted with conveying cylinders (5), the interior of the conveying cylinders (5) is rotatably mounted with a rotating shaft (23), the outer surface of the rotating shaft (23) is fixedly connected with a spiral blade (24), the left side of one group of support frames (2) is fixedly mounted with a mounting plate (3), the top side of the mounting plate (3) is fixedly mounted with a driving motor (4), the output of the driving motor (4) is fixedly mounted with a rotating shaft (23). The shaft end is fixedly connected to the left end of the rotating shaft (23); a feed box (6) is fixedly installed on the left side of the top of the conveying cylinder (5); a connecting box (7) is fixedly installed on the top of the feed box (6); a storage box (8) is fixedly installed on the top of the connecting box (7); a quantitative feeding component is installed on the connecting box (7); a stirring component is installed on the storage box (8); an air inlet component is installed on the front side of the top of the conveying cylinder (5); and an air outlet component is installed on the rear side of the top of the conveying cylinder (5); The quantitative feeding component includes a second driving motor (15), which is fixedly installed on the front side of a connecting box (7). A second rotating rod (26) is rotatably installed inside the connecting box (7), the front end of the second rotating rod (26) is fixedly connected to the output shaft end of the second driving motor (15), and the outer surface of the second rotating rod (26) is fixedly connected to a plurality of scraper plates (27).

2. The sintering furnace pulverized coal conveying device according to claim 1, characterized in that: The stirring assembly includes a driving motor three (16), the driving motor three (16) is fixedly installed on the front side of the storage box (8), and the first rotating rods (17) are rotatably installed on the left and right sides of the interior of the storage box (8), wherein the front end of one group of the first rotating rods (17) is fixedly connected to the output shaft end of the driving motor three (16), the outer surfaces of the two groups of the first rotating rods (17) are fixedly connected with a plurality of stirring blades (18), and the rear ends of the two groups of the first rotating rods (17) are fixedly connected with pulleys (21), and a belt (22) is tensioned and sleeved between the two groups of the pulleys (21).

3. The sintering furnace pulverized coal conveying device according to claim 2, characterized in that: The air inlet assembly comprises a hot air blower (13), the hot air blower (13) is fixedly mounted on the top front side of the base (1), the output end of the hot air blower (13) is fixedly connected to an air inlet pipe (12), the output end of the air inlet pipe (12) is fixedly connected to a multi-way pipe (9), a plurality of air inlets (20) are provided on the top front side of the conveying cylinder (5), and the input ends of the plurality of air inlets (20) are fixedly connected to the multi-way pipe (9).

4. The sintering furnace pulverized coal conveying device according to claim 3, characterized in that: The air outlet assembly includes a secondary filter box (10), a plurality of air outlets (11) are provided on the top rear side of the conveying cylinder (5), the output ends of the plurality of air outlets (11) are fixedly connected to the secondary filter box (10), and an air outlet (19) is provided on the top of the secondary filter box (10).

5. The sintering furnace pulverized coal conveying device according to claim 4, characterized in that: Filter plates (25) are fixedly mounted on the air inlet (20) and the air outlet (11).

6. The sintering furnace pulverized coal conveying device according to claim 5, characterized in that: A discharge port (14) is provided on the right side of the conveying cylinder (5).

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