Raw ore finished product sieve capable of avoiding blockage
By combining the design of drying and vibration mechanisms, the problem of difficult screening and blocking of block ore powder is solved, and efficient screening and production efficiency improvement is achieved.
Patent Information
- Application Number
- CN202421722547.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-20
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-07-20
AI Technical Summary
In the prior art, it is difficult to completely screen the powder in the block ore, causing the powder to enter the blast furnace with the block ore, affecting the economic and technical indicators of the blast furnace. It is easy to cause blockage of the screening equipment when the moisture content is high in the rainy season and reduce production efficiency.
The design of a combination of drying mechanism and a vibration mechanism is adopted to dry the block ore through a heating plate, and the vibration mechanism is used to achieve uniform screening of the block ore to avoid blockage caused by powder viscosity.
Effectively remove moisture from the surface of the block ore, improve the powder screening effect, improve the economic and technical indicators of the blast furnace, avoid blockage, and improve production efficiency.
Smart Images
Figure CN223069883U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of raw ore finished product sieves, and specifically relates to a raw ore finished product sieve that avoids blockage. Background Technique
[0002] In the charging raw material structure of blast furnace smelting, lump ore with a particle size of 8 - 40 mm is used, and the proportion is 2% - 20%. The blast furnace requires that the powder rate (<5 mm) of the charged raw materials be as low as possible. In blast furnace smelting, in order to make full use of the potential of blast furnace smelting energy, a certain proportion of lump ore is added to the burden structure. Since these lump ores usually do not go through a beneficiation process, but are directly mined and crushed from the mine and then shipped to the user unit, the content of fine ore and clay in them is about 25%, and the water content is about 6%. Coupled with open-air stacking, the water content is even higher in the rainy season, either sticking together into blocks or forming mud-like substances. During use, it adheres to the belt and the bin, especially affecting the air permeability operation when entering the blast furnace. At the same time, the fine ore is either blown out with the blast furnace gas and enters the furnace dust without participating in smelting, and the excessive water in the lump ore reduces the reuse of gas energy. To meet the blast furnace requirements, the current screening process mainly is: after screening once in the raw material yard, it is sent to the blast furnace bunker, and then screened again by a vibrating screen under the bunker before entering the furnace for use.
[0003] Due to different origins of the lump ore, the fine ore content rate and the viscosity of the powder vary greatly. If the water content is relatively high during the rainy season, it is very difficult to completely screen out the powder, resulting in a large part of the powder entering the blast furnace with the lump ore, thereby affecting the economic and technical indicators of the blast furnace. Moreover, due to the high fine ore content rate and strong viscosity of the powder in the lump ore, the lump ore adheres to the sieve and causes blockage, affecting the production efficiency. Therefore, the technical personnel in this field provide a raw ore finished product sieve that avoids blockage to solve the problems raised in the above background technique. Content of the Utility Model
[0004] (1) Technical Problems to be Solved
[0005] Aiming at the deficiencies of the prior art, the utility model provides a raw ore finished product sieve that avoids blockage, which has the advantages of avoiding blockage and solves the above technical problems.
[0006] (2) Technical Solution
[0007] To achieve the above purpose, the utility model provides the following technical solution: a raw ore finished product sieve that avoids blockage, including a blast furnace ore sieve box. The left side wall of the blast furnace ore sieve box is fixedly provided with a feeding box through a support column. The feeding box communicates with the inside of the blast furnace ore sieve box through a feeding pipe. The top of the blast furnace ore sieve box is provided with a drying mechanism. The inside of the blast furnace ore sieve box is provided with a vibrating mechanism. The bottom end inside the blast furnace ore sieve box is fixedly provided with a guiding plate. The middle part of the right side wall of the blast furnace ore sieve box is hinged with a box door. The lower part of the right side wall of the blast furnace ore sieve box is fixedly provided with a discharge pipe;
[0008] The drying mechanism includes: a U-shaped plate is fixedly arranged in the middle of the top end of the blast furnace ore sieve box. Shaft columns are rotatably connected to the front and rear end walls inside the U-shaped plate through bearings. One end of each of the two shaft columns is fixedly connected to a reel. A rope is wound around the reel. One end of the rope is hinged to a connecting plate. The bottom end of the connecting plate is fixedly connected to a heating plate through a set of connecting rods. A first motor is fixedly arranged above the rear end wall of the U-shaped plate. The output end of the first motor penetrates into the inside of the U-shaped plate and is fixedly connected to a first gear. A second gear is fixedly arranged on the outer surface of the shaft column located at the rear. Sliders are fixedly arranged on the front and rear end walls of the connecting plate. Sliding grooves are opened on the front and rear end walls inside the U-shaped plate.
[0009] As a preferred technical solution of the present invention, the heating plate is adapted to the internal size of the blast furnace ore sieve box.
[0010] As a preferred technical solution of the present invention, the first gear meshes with the second gear, and both of the two sliders are slidably connected to the inside of the two sliding grooves.
[0011] As a preferred technical solution of the present invention, the vibration mechanism includes: I-shaped blocks are fixedly arranged on the front, rear, both sides of the inner wall of the blast furnace ore sieve box. The four I-shaped blocks are all sleeved with a filter screen. Springs are arranged outside the four I-shaped blocks and below the filter screen. A frame is fixedly arranged below the left side wall of the blast furnace ore sieve box. A second motor is fixedly arranged on the rear end wall inside the frame. The output end of the second motor is fixedly provided with a first bevel gear. A rotating column is rotatably connected to the lower part of the right side wall inside the blast furnace ore sieve box through a bearing. One end of the rotating column penetrates into the inside of the frame and is fixedly provided with a second bevel gear. Two cams are fixedly arranged on the outer surface of the rotating column inside the blast furnace ore sieve box.
[0012] As a preferred technical solution of the present invention, the first bevel gear meshes with the second bevel gear.
[0013] As a preferred technical solution of the present invention, the two cams are symmetrically arranged.
[0014] Compared with the prior art, the present invention provides an original ore finished product sieve that avoids blockage, and has the following beneficial effects:
[0015] The utility model realizes the vibration screening of lump ore through the cooperation of a drying mechanism and a vibration mechanism. During use, the lump ore to be screened is added into the interior of a blast furnace ore sieve box. Then, through the cooperation of an I-shaped block, a filter screen, a spring, a frame body, a second motor, a first conical gear, a rotating column, a second conical gear, and a cam, the vibration screening of the lump ore is achieved. And through the cooperation of a U-shaped plate, a shaft column, a winding wheel, a rope, a connecting plate, a connecting rod, a heating plate, a first motor, a first gear, a second gear, a slider, and a sliding groove, the drying treatment of the lump ore is realized. With the vibration of the lump ore, the lump ore inside it can be evenly heated and dried, so as to avoid the influence of surface moisture on powder removal. The powder screening effect is good, improving the economic and technical indicators of the blast furnace, and the drying is sufficient to avoid the situation that the lump ore adheres to the sieve and causes blockage due to the viscosity of the powder, improving the production efficiency. And through the movement of the heating plate, the drying temperature can be adjusted, and the temperature adjustment is convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 is a schematic diagram of the connection structure of the rope and the connecting plate of the utility model;
[0018] Figure 3 is a schematic diagram of the connection structure of the I-shaped block and the filter screen of the utility model;
[0019] Figure 4 is a schematic diagram of the connection structure of the rotating column and the cam of the utility model.
[0020] Wherein: 1, blast furnace ore sieve box; 2, feeding box; 3, feeding pipe; 4, drying mechanism; 401, U-shaped plate; 402, shaft column; 403, winding wheel; 404, rope; 405, connecting plate; 406, connecting rod; 407, heating plate; 408, first motor; 409, first gear; 410, second gear; 411, slider; 412, sliding groove; 5, vibration mechanism; 501, I-shaped block; 502, filter screen; 503, spring; 504, frame body; 505, second motor; 506, first conical gear; 507, rotating column; 508, second conical gear; 509, cam; 6, guide plate; 7, box door; 8, discharge pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0021] The following further describes in detail the embodiments of the utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.
[0022] In the description of the present utility model, unless otherwise specified, the meaning of "a plurality" is two or more; the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, terms such as "first", "second", "third", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0023] In the description of the present utility model, it should be noted that unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0024] Please refer to Figures 1-4 , an original ore finished product sieve for avoiding blockage, including a blast furnace ore sieve box 1. The left side wall of the blast furnace ore sieve box 1 is fixedly provided with a feeding box 2 through a support column. The feeding box 2 is communicated with the inside of the blast furnace ore sieve box 1 through a feeding pipe 3. A drying mechanism 4 is arranged at the top of the blast furnace ore sieve box 1. A vibration mechanism 5 is arranged inside the blast furnace ore sieve box 1. A guide plate 6 is fixedly arranged at the bottom end inside the blast furnace ore sieve box 1. A box door 7 is hinged in the middle of the right side wall of the blast furnace ore sieve box 1. A discharge pipe 8 is fixedly arranged below the right side wall of the blast furnace ore sieve box 1;
[0025] The drying mechanism 4 includes: a U-shaped plate 401 is fixedly arranged in the middle of the top of the blast furnace ore sieve box 1. Shaft columns 402 are rotatably connected to the front and rear end walls inside the U-shaped plate 401 through bearings. One end of each of the two shaft columns 402 is fixedly connected to a reel 403. A rope 404 is wound around the reel 403. One end of the rope 404 is hinged to a connecting plate 405. The bottom end of the connecting plate 405 is fixedly connected to a heating plate 407 through a group of connecting rods 406. A first motor 408 is fixedly arranged above the rear end wall of the U-shaped plate 401. The output end of the first motor 408 penetrates into the inside of the U-shaped plate 401 and is fixedly connected to a first gear 409. A second gear 410 is fixedly arranged on the outer surface of the rear shaft column 402. Sliders 411 are fixedly arranged on the front and rear end walls of the connecting plate 405. Chute grooves 412 are opened on the front and rear end walls inside the U-shaped plate 401; the heating plate 407 is adapted to the internal size of the blast furnace ore sieve box 1; the first gear 409 meshes with the second gear 410, and both of the two sliders 411 are slidably connected to the inside of the two chute grooves 412.
[0026] Further, during use, start the first motor 408 to drive the first gear 409 to drive the second gear 410 to rotate forward. The two shaft columns 402 and the reel 403 rotate accordingly, so that the rope 404 is loosened, the connecting plate 405 moves downward, and at the same time, both sliders 411 slide inside the two chutes 412, so that the heating plate 407 moves downward. Power is supplied to the heating plate 407 for heating, so that the lumpy ore inside the blast furnace ore screening box 1 is dried, so as to avoid the surface moisture affecting the powder removal. And through the height adjustment of the heating plate 407, the drying temperature can be adjusted according to the distance between the heating plate 407 and the lumpy ore, and the temperature adjustment is convenient.
[0027] The vibration mechanism 5 includes: I-shaped blocks 501 are fixedly arranged at the front and rear parts of both inner side walls of the blast furnace ore screening box 1. The four I-shaped blocks 501 are all sleeved with a filter screen 502. Springs 503 are arranged outside the four I-shaped blocks 501 and below the filter screen 502. A frame 504 is fixedly arranged below the left side wall of the blast furnace ore screening box 1. A second motor 505 is fixedly arranged on the inner rear wall of the frame 504. The output end of the second motor 505 is fixedly provided with a first bevel gear 506. The lower part of the inner right side wall of the blast furnace ore screening box 1 is rotatably connected with a rotating column 507 through a bearing. One end of the rotating column 507 penetrates into the frame 504 and is fixedly provided with a second bevel gear 508. Two cams 509 are fixedly arranged inside the blast furnace ore screening box 1 and on the outer surface of the rotating column 507; The first bevel gear 506 meshes with the second bevel gear 508; The two cams 509 are symmetrically arranged.
[0028] Further, during use, start the second motor 505 to drive the first bevel gear 506 to drive the second bevel gear 508 to rotate. The rotating column 507 rotates accordingly, so that the two cams 509 touch the filter screen 502. The filter screen 502 moves up and down under the guidance of the four I-shaped blocks 501, and drives the four springs 503 to compress, so that the lumpy ore is vibrated and screened. With the vibration of the lumpy ore, the lumpy ore can be evenly dried.
[0029] Working principle: When in use, first add lump ore into the interior of the blast furnace ore sieve box 1 through the feeding box 2 and the feeding pipe 3. Start the second motor 505 to drive the first conical gear 506 to drive the second conical gear 508 to rotate. Its rotating column 507 generates rotation, and then makes the two cams 509 touch the filter screen 502. The filter screen 502 moves up and down under the guidance of the four I-shaped blocks 501, and drives the four springs 503 to compress, so that the lump ore is vibrated and screened. Then start the first motor 408 to drive the first gear 409 to drive the second gear 410 to rotate forward. The two shaft columns 402 and the reel 403 rotate accordingly, and then the rope 404 is loosened, and its connecting plate 405 moves downward. At the same time, the two sliders 411 both slide inside the two chutes 412, so that the heating plate 407 moves downward, and power is supplied to the heating plate 407 to heat it, so that it dries the lump ore inside the blast furnace ore sieve box 1. The drying temperature can be adjusted according to the distance between the heating plate 407 and the lump ore. The temperature adjustment is convenient. With the vibration of the lump ore, the lump ore can be evenly dried to prevent the surface moisture from affecting the powder removal. The powder screening effect is good, which improves the economic and technical indicators of the blast furnace. And the drying is sufficient to prevent the stickiness of the powder from causing the lump ore to stick to the sieve and cause blockage, improving the production efficiency.
[0030] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An as-mined product sieve for preventing blockage, comprising a blast furnace ore sieve box (1), characterized in that: On the left side wall of the blast furnace ore sieve box (1), a feeding box (2) is fixedly arranged through a support column. The feeding box (2) communicates with the inside of the blast furnace ore sieve box (1) through a feeding pipe (3). At the top of the blast furnace ore sieve box (1), a drying mechanism (4) is arranged. Inside the blast furnace ore sieve box (1), a vibration mechanism (5) is arranged. At the bottom end inside the blast furnace ore sieve box (1), a guide plate (6) is fixedly arranged. In the middle of the right side wall of the blast furnace ore sieve box (1), a box door (7) is hinged. Below the right side wall of the blast furnace ore sieve box (1), a discharge pipe (8) is fixedly arranged. The drying mechanism (4) includes: In the middle of the top of the blast furnace ore sieve box (1), a U-shaped plate (401) is fixedly arranged. On the front and rear end walls inside the U-shaped plate (401), a shaft column (402) is rotatably connected through a bearing. One end of each of the two shaft columns (402) is fixedly connected to a reel (403). A rope (404) is wound around the reel (403). One end of the rope (404) is hinged to a connecting plate (405). The bottom end of the connecting plate (405) is fixedly connected to a heating plate (407) through a group of connecting rods (406). Above the rear end wall of the U-shaped plate (401), a first motor (408) is fixedly arranged. The output end of the first motor (408) penetrates into the inside of the U-shaped plate (401) and is fixedly connected to a first gear (409). On the outer surface of the shaft column (402) at the rear, a second gear (410) is fixedly arranged. On the front and rear end walls of the connecting plate (405), sliders (411) are fixedly arranged. On the front and rear end walls inside the U-shaped plate (401), chutes (412) are opened.
2. The raw ore finished product sieve for avoiding blockage according to claim 1, characterized in that: The heating plate (407) is adapted to the internal size of the blast furnace ore sieve box (1).
3. A raw ore finished product sieve for preventing blockage according to claim 1, characterized in that: The first gear (409) meshes with the second gear (410). Both of the two sliders (411) are slidably connected to the inside of the two chutes (412).
4. The primary ore finished product sieve for avoiding blockage according to claim 1, wherein: The vibration mechanism (5) includes: On the front and rear parts of the inner side walls of the blast furnace ore sieve box (1), I-shaped blocks (501) are fixedly arranged. All four I-shaped blocks (501) are sleeved with a filter screen (502). Springs (503) are arranged outside all four I-shaped blocks (501) and below the filter screen (502). Below the left side wall of the blast furnace ore sieve box (1), a frame body (504) is fixedly arranged. On the rear end wall inside the frame body (504), a second motor (505) is fixedly arranged. The output end of the second motor (505) is fixedly arranged with a first bevel gear (506). Below the right side wall inside the blast furnace ore sieve box (1), a rotating column (507) is rotatably connected through a bearing. One end of the rotating column (507) penetrates into the inside of the frame body (504) and is fixedly arranged with a second bevel gear (508). Inside the blast furnace ore sieve box (1) and on the outer surface of the rotating column (507), two cams (509) are fixedly arranged.
5. The primary ore finished product sieve for avoiding blockage according to claim 4, wherein: The first bevel gear (506) meshes with the second bevel gear (508).
6. The original ore finished product sieve for avoiding blockage according to claim 4, characterized in that: The two cams (509) are symmetrically arranged.