Mineral aggregate feeding device of calcining kiln

Abstract

The utility model relates to the technical field of nickel low-temperature steel calcination, and particularly discloses a calcining kiln mineral aggregate feeding device which comprises an exhaust pipeline, a feeding pipeline communicated with the exhaust pipeline and an exhaust fan installed on one side of the exhaust pipeline, a filter screen is fixedly connected in the exhaust pipeline, one side of the filter screen is connected with a scraper in a sliding mode, and the scraper is connected with the feeding pipeline in a sliding mode. Through the arrangement of the exhaust fan, the filter element, the filter screen, the scraper, the positioning plate, the driving assembly and the limiting assembly, the exhaust fan can conduct air draft on the interior of the feeding pipeline, the pressure in the feeding pipeline is reduced, dust is extracted at the same time, the dust is prevented from entering the feeding pipeline, the dust is prevented from entering the feeding pipeline, and the dust is prevented from entering the feeding pipeline. The driving assembly can drive the scraping plate to slide on one side of the filter screen, the situation that the filter screen is blocked is reduced, the limiting assembly can enable the positioning plate to limit the filter element, and dust can be conveniently collected by the filter element.

Description

Technical Field

[0001] This utility model relates to the field of nickel-based low-temperature steel calcination technology, specifically a calcination kiln ore feeding device. Background Technology

[0002] The core of nickel-based low-temperature steel smelting lies in the rapid dephosphorization reaction during the converter smelting process. This requires metallurgical lime to be low in phosphorus, sulfur, and silicon, with calcium oxide and activity levels above 92 and 400, respectively. The original lime production process and route have been adjusted in terms of raw material selection, calcination control, storage, and use. In terms of raw materials, low-silicon and low-sulfur ore is selected as the production raw material, reducing the raw material particle size ratio and overall raw material particle size, and increasing the calcination temperature and calcination intensity.

[0003] In the calcination feeding process, to ensure process safety and stability, a closed conveying system must be used to minimize the contact between materials and outside air. Currently, pipeline conveying is commonly used for feeding operations, but continuous feeding can lead to excessive pipeline pressure. Secondly, if dust generated during material conveying accumulates in the pipeline, it will affect the conveying process. To address these issues, a calcination kiln ore feeding device is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a calcining kiln ore feeding device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A calcining kiln ore feeding device includes an exhaust pipe, a feeding pipe connected to the exhaust pipe, and an exhaust fan installed on one side of the exhaust pipe. A filter screen is fixedly connected inside the exhaust pipe, and a scraper is slidably connected to one side of the filter screen. A driving component for driving the scraper to slide is provided on the exhaust pipe.

[0007] Two sets of positioning plates are slidably connected inside the exhaust pipe, and two sets of filter elements are snapped between the two sets of positioning plates. The positioning plates are provided with limiting components for fixing the filter elements, and a sealing plate is provided at the opening of the exhaust pipe.

[0008] In one alternative: the drive assembly includes a chute and a toothed plate, the chute being formed at the top of the exhaust pipe, the toothed plate being fixedly connected to the top of the scraper, the scraper being slidably connected within the chute, the toothed plate meshing with a gear, and a motor for driving the gear to rotate being installed on the feeding pipe.

[0009] In one alternative: guide blocks are fixedly connected to both sides of the positioning plate, and a guide groove is provided in the exhaust pipe for sliding in cooperation with the guide blocks.

[0010] In one alternative embodiment: the limiting assembly includes a limiting plate and a threaded rod, the two sets of limiting plates are respectively overlapped on both sides of one end of the filter element, the two sets of threaded rods are respectively rotatably connected to the two sets of limiting plates on the opposite sides, the threaded rods are threadedly connected to a fixing plate, and the fixing plate is fixedly connected to one side of the positioning plate.

[0011] In one alternative: a slot is provided on the side of each of the two sets of positioning plates that are close to each other, and a set of movable plates is slidably connected in the two sets of slots.

[0012] In one alternative: both sides of the scraper are fixedly connected to accordion plates, which slide within a groove. The end of the accordion plate away from the scraper is fixedly connected to one side of the inner wall of the groove. A positioning block is fixedly connected to one side of the scraper, and a positioning groove is provided on one side of the filter screen for sliding in conjunction with the positioning block.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This utility model incorporates an exhaust fan, a filter element, a filter screen, a scraper, a positioning plate, a drive assembly, and a limiting assembly. The exhaust fan draws air from the feeding pipe, reducing the pressure inside and simultaneously extracting dust. The drive assembly drives the scraper to slide on one side of the filter screen, reducing clogging. The limiting assembly allows the positioning plate to limit the filter element, facilitating dust collection.

[0015] This invention uses a movable plate and a slot to fix the two sets of positioning plates together, reducing the shaking of the filter element, reducing gaps, and preventing dust from flying out.

[0016] This invention, by setting guide blocks and guide grooves, can limit and position the positioning plate, reducing the shaking of the filter element. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a schematic diagram of the structure where the filter element is located in this utility model.

[0019] Figure 3 This is a structural diagram of the location of the positioning plate in this utility model.

[0020] Figure 4 This is a schematic diagram of the structure where the filter screen is located in this utility model.

[0021] In the diagram: 11. Exhaust pipe; 12. Feeding pipe; 13. Exhaust fan; 14. Filter screen; 15. Scraper; 16. Slide groove; 17. Toothed plate; 18. Gear; 19. Motor; 20. Positioning plate; 21. Filter element; 22. Guide block; 23. Guide groove; 24. Threaded rod; 25. Fixing plate; 26. Limiting plate; 27. Slot; 28. Moving plate; 29. ​​Positioning groove; 30. Sealing plate. Detailed Implementation

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figures 1-4 In this embodiment, a calcining kiln ore feeding device includes an exhaust pipe 11, a feeding pipe 12 connected to the exhaust pipe 11, and an exhaust fan 13 installed on one side of the exhaust pipe 11. A filter screen 14 is fixedly connected inside the exhaust pipe 11, and a scraper 15 is slidably connected to one side of the filter screen 14. A driving component for driving the scraper 15 to slide is provided on the exhaust pipe 11.

[0025] Two sets of positioning plates 20 are slidably connected inside the exhaust pipe 11. Two sets of filter elements 21 are snapped between the two sets of positioning plates 20. The positioning plates 20 are provided with limiting components for fixing the filter elements 21. A sealing plate 30 is provided at the opening of the exhaust pipe 11.

[0026] The drive assembly includes a chute 16 and a toothed plate 17. The chute 16 is located at the top of the exhaust pipe 11. The toothed plate 17 is fixedly connected to the top of the scraper 15. The scraper 15 is slidably connected within the chute 16. The toothed plate 17 meshes with a gear 18. A motor 19 is installed on the feeding pipe 12 to drive the gear 18 to rotate. When the motor 19 operates, it drives the gear 18 to rotate. The gear 18 meshes with the toothed plate 17, causing the toothed plate 17 to move. The toothed plate 17 then drives the scraper 15 to move to one side of the filter screen 14, scraping the filter screen 14 and reducing the likelihood of the filter screen 14 being clogged by dust.

[0027] Guide blocks 22 are fixedly connected to both sides of the positioning plate 20. A guide groove 23 is provided in the exhaust pipe 11 for sliding in cooperation with the guide block 22. By setting the guide block 22 and the guide groove 23, the positioning plate 20 can be limited and positioned, reducing the shaking of the filter element 21.

[0028] The limiting assembly includes a limiting plate 26 and a threaded rod 24. Two sets of limiting plates 26 are respectively attached to both sides of one end of the filter element 21. Two sets of threaded rods 24 are respectively rotatably connected to the two sets of limiting plates 26 on opposite sides. The threaded rod 24 is threadedly connected to a fixing plate 25. The fixing plate 25 is fixedly connected to one side of the positioning plate 20. Rotating the threaded rod 24 causes the limiting plate 26 to move closer to the filter element 21, thereby limiting the filter element 21, fixing the filter element 21, reducing shaking, and facilitating disassembly.

[0029] Each of the two sets of positioning plates 20 has a slot 27 on one side that is close to each other. A set of movable plates 28 is slidably connected in the slots 27. By setting the movable plates 28 and the slots 27, the two sets of positioning plates 20 can be fixed together, reducing the shaking of the filter element 21, reducing the gap, and preventing dust from flying out.

[0030] Both sides of the scraper 15 are fixedly connected to accordion plates, which slide within the slide groove 16. The end of the accordion plate away from the scraper 15 is fixedly connected to one side of the inner wall of the slide groove 16. By setting the accordion plates, dust can be prevented from being discharged through the slide groove 16. A positioning block is fixedly connected to one side of the scraper 15, and a positioning groove 29 is provided on one side of the filter screen 14 for sliding in conjunction with the positioning block. By setting the positioning block and the positioning groove 29, the sliding of the scraper 15 can be limited and guided.

[0031] The working principle of this utility model is as follows: The exhaust port of the exhaust fan 13 is connected to an external pipe, which is equipped with a one-way valve. During use, the feeding pipe 12 feeds the raw materials, and the exhaust fan 13 operates. Dust in the raw materials passes through the filter screen 14 into the exhaust pipe 11, and then into the filter element 21, where it is collected, reducing dust accumulation in the pipe. This also reduces pipe pressure and improves conveying efficiency. Simultaneously, the motor 19 operates, driving the gear 18 to rotate. The gear 18 meshes with the toothed plate 17, causing the toothed plate 17 to move. The moving scraper 15 moves to one side of the filter screen 14 to scrape the filter screen 14, reducing the clogging of the filter screen 14 by dust and cleaning the filter element 21. The sealing plate 30 is opened and the positioning plate 20 is pulled out. The positioning plate 20 drives the guide block 22 to slide outward in the guide groove 23. The moving plate 28 is pulled out and slides in the slot 27. The threaded rod 24 is rotated to move the limiting plate 26 away from the filter element 21. The filter element 21 is no longer restricted by the limiting plate 26 and can be separated from the positioning plate 20, making it convenient for staff to clean and replace the filter element 21.

[0032] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A calcining kiln ore feeding device, comprising an exhaust pipe (11), a feeding pipe (12) connected to the exhaust pipe (11), and an exhaust fan (13) installed on one side of the exhaust pipe (11), characterized in that: A filter screen (14) is fixedly connected inside the exhaust pipe (11), and a scraper (15) is slidably connected to one side of the filter screen (14). A drive assembly for driving the scraper (15) to slide is provided on the exhaust pipe (11). Two sets of positioning plates (20) are slidably connected inside the exhaust pipe (11), and two sets of filter elements (21) are snapped between the two sets of positioning plates (20). The positioning plates (20) are provided with limiting components for fixing the filter elements (21), and a sealing plate (30) is provided at the opening of the exhaust pipe (11).

2. The calcining kiln ore feeding device according to claim 1, characterized in that: The drive assembly includes a chute (16) and a toothed plate (17). The chute (16) is opened at the top of the exhaust pipe (11). The toothed plate (17) is fixedly connected to the top of the scraper (15). The scraper (15) is slidably connected in the chute (16). The toothed plate (17) meshes with a gear (18). A motor (19) for driving the gear (18) to rotate is installed on the feeding pipe (12).

3. The calcining kiln ore feeding device according to claim 1, characterized in that: Guide blocks (22) are fixedly connected to both sides of the positioning plate (20), and a guide groove (23) is provided in the exhaust pipe (11) for sliding in cooperation with the guide block (22).

4. The calcining kiln ore feeding device according to claim 1, characterized in that: The limiting assembly includes a limiting plate (26) and a threaded rod (24). The two sets of limiting plates (26) are respectively attached to both sides of one end of the filter element (21). The two sets of threaded rods (24) are respectively rotatably connected to the two sets of limiting plates (26) on the side away from each other. The threaded rod (24) is threadedly connected to a fixing plate (25). The fixing plate (25) is fixedly connected to one side of the positioning plate (20).

5. The calcining kiln ore feeding device according to claim 1, characterized in that: Both sets of positioning plates (20) have slots (27) on their adjacent sides, and a set of movable plates (28) are slidably connected in the slots (27).

6. The calcining kiln ore feeding device according to claim 2, characterized in that: Both sides of the scraper (15) are fixedly connected to the accordion plate, which slides in the groove (16). The end of the accordion plate away from the scraper (15) is fixedly connected to one side of the inner wall of the groove (16). A positioning block is fixedly connected to one side of the scraper (15), and a positioning groove (29) is provided on one side of the filter screen (14) for sliding in conjunction with the positioning block.

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