Blast furnace feeding device

Abstract

The utility model relates to the technical field of blast furnaces, and discloses a blast furnace feeding device which comprises a supporting column, a collecting box arranged on one side of the supporting column, a material conveying pipe fixedly connected between the supporting column and the top end of the collecting box, a feeding hopper fixedly installed on the material conveying pipe, a discharging box fixedly installed at the end, away from the collecting box, of the material conveying pipe, and a rotating plate installed in the feeding hopper. According to the blast furnace feeding device, materials are put into the feeding hopper, a rotating plate is driven to rotate to stir the materials, the feeding hopper and a discharging pipe are prevented from being blocked, scraping blades at the two ends of the rotating plate scrape the inner wall of the feeding hopper, material bonding is avoided, and a heating shaft seat is driven to heat a second screw rod through a heating rod; and the vibration exciter is matched to drive the feeding hopper and the material conveying pipe to shake, so that the hardened materials are separated, a second screw rod is driven to rotate anticlockwise, the separated materials are recycled into a collecting box, the collected materials can be reused, material waste is avoided, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of blast furnaces, in particular to a blast furnace charging device. Background Art

[0002] The blast furnace is made of steel plates as the shell, and the shell is lined with refractory bricks. The blast furnace body is divided into five parts from top to bottom: throat, body, waist, belly, and hearth. Due to the advantages of good technical and economic indicators of blast furnace ironmaking, simple process, large production volume, high labor production efficiency, and low energy consumption, the iron produced by this method accounts for the vast majority of the world's total iron production;

[0003] During blast furnace production, iron ore, coke and limestone need to be loaded into the furnace top through a feeding device. Nowadays, most feeding devices have too simple structures. During the material transportation process, the friction between the material and the inner wall of the feeding pipe will cause material loss and make it adhere to the inner wall of the feeding pipe. At the same time, the accumulation of materials in the feeding hopper is easy to cause blockage, and the inner wall of the feeding hopper will also adhere to the residual materials, which greatly wastes materials and increases production costs. Utility Model Content

[0004] The purpose of the utility model is to provide a blast furnace charging device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a blast furnace charging device, comprising a pillar, a collecting box is provided on one side of the pillar, a feeding pipe is fixedly connected between the pillar and the top of the collecting box, a feeding hopper is fixedly installed on the feeding pipe, a discharge box is fixedly installed on the end of the feeding pipe away from the collecting box, a rotating plate is installed in the upper hopper, and scrapers are fixedly connected at both ends of the rotating plate close to the inner wall of the upper hopper, a first screw rod is fixedly connected to the bottom end of the central axis of the rotating plate, and the first screw rod is located in the discharge pipe of the upper hopper, a second screw rod is provided in the feeding pipe, one end of the second screw rod is fixedly connected to a heating shaft seat, and the heating shaft seat is located inside the discharge box, and one end of the heating shaft seat is fixedly connected to a heating rod, and the heating rod passes through the second screw rod.

[0006] Preferably, a first mounting plate is fixedly connected to the top of the upper hopper, a first motor is fixedly installed in the middle of the top of the first mounting plate, the top of the central axis of the rotating plate is fixedly connected to the output end of the first motor, the first screw rod is in contact with the inner wall of the lower feeding pipe of the upper hopper, and the rotating plate divides the inner cavity of the upper hopper into two equal areas.

[0007] Preferably, the lower feeding pipe of the upper hopper is connected with the inner cavity of the feeding pipe, a second motor is fixedly installed on the side of the discharge box away from the feeding pipe, one end of the heating shaft seat away from the second screw rod is fixedly connected to the output end of the second motor, and both ends of the inner cavity of the feeding pipe are respectively connected with the collecting box and the discharge box.

[0008] Preferably, a second mounting plate is fixedly connected between the outer wall of the rotating plate and the outer wall of the material conveying pipe, and vibrators are symmetrically mounted on both sides of the second mounting plate.

[0009] Preferably, the feed pipe is arranged at an angle, the discharge end of the discharge box is designed to be inclined, the end of the feed pipe away from the discharge box is integrally connected with a clamping plate, a clamping groove is provided at the top of the collecting box corresponding to the clamping plate, the clamping plate and the clamping groove overlap, and the clamping plate is fixedly connected to the clamping groove by screws.

[0010] Preferably, the support and the bottom end of the collection box are integrally connected with a positioning base, and the positioning base is fixedly connected to the ground by a plurality of expansion screws.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The utility model puts materials into the upper hopper and drives the rotating plate to rotate to stir the materials, thereby avoiding clogging of the lower feeding pipe of the upper hopper. The scrapers at both ends of the rotating plate scrape the materials on the inner wall of the upper hopper to avoid material adhesion. The heating shaft seat is driven to heat the second screw rod through the heating rod to harden the materials adhered to the inner wall of the feeding pipe. The upper hopper and the feeding pipe are driven to vibrate by the vibrator to separate the hardened materials. The second screw rod is driven to rotate counterclockwise to recycle the separated materials into the collection box. The collected materials can be used again, thereby avoiding material waste and reducing production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the heating shaft seat of the utility model.

[0016] In the figure: 1. support; 2. collecting box; 21. clamping groove; 3. feeding pipe; 31. clamping plate; 4. upper hopper; 41. first mounting plate; 42. first motor; 5. discharge box; 6. rotating plate; 61. scraper; 62. first screw rod; 7. second mounting plate; 71. vibrator; 8. second screw rod; 9. heating shaft seat; 91. heating rod; 10. second motor. DETAILED DESCRIPTION

[0017] 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.

[0018] See also Figure 1-3 The utility model provides a technical solution: a blast furnace charging device comprises a pillar 1, a collecting box 2 is provided on one side of the pillar 1, a feeding pipe 3 is fixedly connected between the top of the pillar 1 and the collecting box 2, a feeding hopper 4 is fixedly installed on the feeding pipe 3, a discharge box 5 is fixedly installed on the end of the feeding pipe 3 away from the collecting box 2, a rotating plate 6 is installed in the upper hopper 4, and scrapers 61 are fixedly connected at both ends of the rotating plate 6 close to the inner wall of the upper hopper 4, a first spiral rod 62 is fixedly connected to the bottom end of the central axis of the rotating plate 6, and the first spiral rod 62 is located in the lower feeding pipe of the upper hopper 4, a second spiral rod 8 is provided in the feeding pipe 3, one end of the second spiral rod 8 is fixedly connected to a heating shaft seat 9, and the heating shaft seat 9 is located inside the discharge box 5, one end of the heating shaft seat 9 is fixedly connected to a heating rod 91, and the heating rod 91 penetrates into the second spiral rod 8, and the other end of the second spiral rod 8 is located between the upper hopper 4 and the collecting box 2, so as to facilitate the transportation of the material in the upper hopper 4.

[0019] Furthermore, a first mounting plate 41 is fixedly connected to the top of the upper hopper 4, a first motor 42 is fixedly installed in the middle of the top of the first mounting plate 41, the top of the central axis of the rotating plate 6 is fixedly connected to the output end of the first motor 42, the first screw rod 62 contacts the inner wall of the discharge pipe of the upper hopper 4, and the rotating plate 6 divides the inner cavity of the upper hopper 4 into two equal areas. When different materials are put in, they are separated and the two materials penetrate downward. When the first screw rod 62 rotates to convey the materials, the two materials are mixed to make the mixing more uniform.

[0020] Furthermore, the lower feeding pipe of the upper hopper 4 is connected with the inner cavity of the feeding pipe 3, and a second motor 10 is fixedly installed on the side of the discharge box 5 away from the feeding pipe 3. One end of the heating shaft seat 9 away from the second screw rod 8 is fixedly connected to the output end of the second motor 10. The two ends of the inner cavity of the feeding pipe 3 are respectively connected with the inner cavities of the collecting box 2 and the discharge box 5. A second mounting plate 7 is fixedly connected between the outer wall of the rotating plate 6 and the outer wall of the feeding pipe 3. Vibrators 71 are symmetrically installed on both sides of the second mounting plate 7. The mixed material will produce loss during the transportation process and adhere to the second screw rod 8 and the inner wall of the feeding pipe 3. The second screw rod 8 is heated by the heating shaft seat 9 to harden the residual material. The second motor 10 drives the second screw rod 8 to rotate counterclockwise, and the residual material is recovered into the collecting box 2 to avoid material waste. The vibrator 71 drives the feeding pipe 3 to shake, which is conducive to the separation of the hardened residual material.

[0021] Furthermore, the feed pipe 3 is arranged at an angle, and the discharge end of the discharge box 5 is designed to be inclined. The end of the feed pipe 3 away from the discharge box 5 is integrally connected with a clamping plate 31, and a clamping groove 21 is provided at the top of the collecting box 2 corresponding to the clamping plate 31. The clamping plate 31 and the clamping groove 21 overlap, and the clamping plate 31 is fixedly connected to the clamping groove 21 by screws, which facilitates the disassembly of the collecting box 2 and the feed pipe 3 and is beneficial to the reuse of the residual material collected in the collecting box 2.

[0022] Furthermore, the bottom ends of the support column 1 and the collection box 2 are integrally connected with a positioning base, and the positioning base is fixedly connected to the ground by a plurality of expansion screws, thereby improving the stability of the overall support.

[0023] Working principle: put the material into the inner cavity from the top of the upper hopper 4, drive the first motor 42 to drive the rotating plate 6 to rotate as a whole, the first screw rod 62 rotates to transport the material from the discharge pipe of the upper hopper 4 to the inner cavity of the feeding pipe 3, drive the second motor 10 to rotate clockwise to drive the heating shaft seat 9 and the second screw rod 8 to rotate, and the material is transported along the pipeline of the feeding pipe 3 to the inner cavity of the discharge box 5 through the second screw rod 8, and finally the material is fed to the top of the blast furnace from the discharge end of the discharge box 5. The blast furnace materials are generally iron ore, coke and stone Limestone, when the second screw rod 8 is spirally conveying materials, it will cause loss due to friction with the inner wall of the conveying pipe 3, and the heating shaft seat 9 is driven to heat the second screw rod 8 through the heating rod 91, and the second screw rod 8 is limited to be made of heat-conducting metal material. The heating hardens the bonding residue, and the driving exciter 71 is used to drive the conveying pipe 3 to shake so that the hardened residue is separated. The second motor 10 is driven counterclockwise to drive the second screw rod 8 to rotate, so that the inner cavity of the conveying pipe 3 and the residue bonded by the second screw rod 8 can be transported to the collection box 2 for storage for reuse.

[0024] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0025] 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. A blast furnace charging device, comprising a support (1), a collecting box (2) being provided on one side of the support (1), a feeding pipe (3) being fixedly connected between the top of the support (1) and the collecting box (2), a feeding hopper (4) being fixedly mounted on the feeding pipe (3), and a discharge box (5) being fixedly mounted on one end of the feeding pipe (3) away from the collecting box (2), characterized in that: A rotating plate (6) is installed in the upper hopper (4), and scrapers (61) are fixedly connected to both ends of the rotating plate (6) close to the inner wall of the upper hopper (4). A first spiral rod (62) is fixedly connected to the bottom end of the central axis of the rotating plate (6), and the first spiral rod (62) is located in the discharge pipe of the upper hopper (4). A second spiral rod (8) is arranged in the conveying pipe (3), and one end of the second spiral rod (8) is fixedly connected to a heating shaft seat (9), and the heating shaft seat (9) is located inside the discharge box (5). One end of the heating shaft seat (9) is fixedly connected to a heating rod (91), and the heating rod (91) passes through the second spiral rod (8).

2. The blast furnace charging device according to claim 1, characterized in that: The top of the upper hopper (4) is fixedly connected to a first mounting plate (41), a first motor (42) is fixedly mounted in the middle of the top of the first mounting plate (41), the top of the central axis of the rotating plate (6) is fixedly connected to the output end of the first motor (42), the first screw rod (62) is in contact with the inner wall of the lower material pipe of the upper hopper (4), and the rotating plate (6) divides the inner cavity of the upper hopper (4) into two equal areas.

3. The blast furnace charging device according to claim 1, characterized in that: The lower feeding pipe of the upper hopper (4) is connected to the inner cavity of the feeding pipe (3); a second motor (10) is fixedly installed on the side of the discharge box (5) away from the feeding pipe (3); one end of the heating shaft seat (9) away from the second screw rod (8) is fixedly connected to the output end of the second motor (10); and the two ends of the inner cavity of the feeding pipe (3) are respectively connected to the inner cavities of the collecting box (2) and the discharge box (5).

4. The blast furnace charging device according to claim 1, characterized in that: A second mounting plate (7) is fixedly connected between the outer wall of the rotating plate (6) and the outer wall of the material conveying pipe (3), and vibrators (71) are symmetrically mounted on both sides of the second mounting plate (7).

5. The blast furnace charging device according to claim 1, characterized in that: The conveying pipe (3) is arranged at an angle, and the discharge end of the discharge box (5) is designed to be inclined. The end of the conveying pipe (3) away from the discharge box (5) is integrally connected with a clamping plate (31), and a clamping groove (21) is provided at the top of the collection box (2) corresponding to the clamping plate (31). The clamping plate (31) and the clamping groove (21) overlap, and the clamping plate (31) is fixedly connected to the clamping groove (21) by screws.

6. The blast furnace charging device according to claim 1, characterized in that: The bottom ends of the support (1) and the collection box (2) are integrally connected to a positioning base, and the positioning base is fixedly connected to the ground via a plurality of expansion screws.

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