Feeding device for blast furnace ironmaking

Abstract

The utility model discloses a feeding device for blast furnace ironmaking, and relates to the technical field of blast furnace ironmaking. The blast furnace comprises a stock bin, a blast furnace body, a conveyor and a feeding box, the blast furnace body is arranged on one side of the stock bin, the feeding box is arranged on one side of the upper end of the blast furnace body, materials are conveyed between the feeding box and the stock bin through the conveyor, and a discharging electromagnetic valve is arranged at the discharging end of the stock bin. Through mutual cooperation of the drawing plate, the electric push rod, the weighing sensor, the conveyor and the L-shaped cover, materials fed to the blast furnace body are weighed, and the weight of the fed materials is controlled, that is, in the process that the materials are conveyed through the conveyor, the L-shaped cover and the movable cover can be used for conducting quantitative conveying, and the fed materials are divided into one cover and one cover; after being conveyed into the feeding box one by one, the materials fall on the drawing plate and are weighed through the weighing sensor, and after the weighing weight reaches a threshold value, the drawing plate is drawn away, and the materials fall into the smashing cavity.

Description

Technical Field

[0001] The utility model belongs to the field of blast furnace ironmaking, and specifically relates to a feeding device for blast furnace ironmaking. Background Art

[0002] Common ironmaking methods include electric furnace ironmaking and blast furnace ironmaking. Compared with electric furnace ironmaking, blast furnace ironmaking has lower energy consumption and higher economic benefits. During the ironmaking process, a charging device is required to load the charge. However, the existing charging device still has some shortcomings when used.

[0003] For example, in the publication number CN202022471858.X, it achieves the effect of quick and clean unloading through the arrangement of a frame, a push rod motor, a push plate, a frame body, a square through hole, a slot, a first motor, a screw rod, a movable plate and a square discharge barrel. Through the arrangement of a U-shaped frame, a second motor, a threaded rod, a carrier block, a accommodating groove, a through groove and a telescopic barrel, it can ensure that the raw materials can be accurately unloaded into the receiving funnel, avoid splashing of raw materials, and save resources; the above-mentioned feeding device is used to load materials through equipment such as a telescopic barrel and a motor. Although it can achieve the effect of saving resources, it cannot control the amount of single-time material drop during the loading process, and the use effect is poor. In view of this, the present utility model is specially proposed. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide a charging device for blast furnace ironmaking.

[0005] In order to solve the above technical problems, the basic concept of the technical solution adopted by the present invention is:

[0006] A blast furnace ironmaking feeding device comprises a silo, a blast furnace body, a conveyor and a feeding box. The blast furnace body is provided on one side of the silo, and the feeding box is provided on one side of the upper end of the blast furnace body. Materials are transported between the feeding box and the silo via the conveyor. A discharge solenoid valve is provided at the discharge end of the silo.

[0007] The bottom of the charging box is fixed to the blast furnace body by a fixing seat and a supporting seat, a collecting hopper is provided at the upper end of the charging box, a partition is fixedly installed in the middle of the charging box, a feeding hole is provided in the middle of the partition, a pull-out plate is provided in the middle of the feeding hole, the side of the pull-out plate is fixed to the telescopic end of the electric push rod, the electric push rod is fixed to the side of the charging box through a bracket, a weighing slot is provided in the middle of the pull-out plate, T-rails are fixedly installed on both sides of the weighing slot, a wear-resistant plate is provided between the two T-rails, a weighing sensor is provided between the wear-resistant plate and the weighing slot, a guide plate is provided at the bottom of the weighing slot, and the guide plate is fixed to the lower end of the partition by screws;

[0008] A crushing chamber is provided below the partition plate, one side of the crushing chamber is connected with a feeding nozzle, and a material guide pipe is fixed on the side of the feeding nozzle.

[0009] Optionally, an L-shaped cover is fixed at intervals on the upper end section of the conveyor belt of the conveyor, a cavity for installing a movable cover is opened at the upper end of the L-shaped cover, and the movable cover is fixed to the L-shaped cover by a limit bolt.

[0010] Optionally, a crushing roller is provided inside the crushing chamber, a receiving plate is provided at the bottom of the crushing chamber, and the bottom of the receiving plate is connected to the crushing chamber through a first spring, and the receiving plate is fixed to the crushing chamber through a dust telescopic cover.

[0011] Optionally, a groove is provided in the middle of the crushing chamber, and a base is fixedly installed inside the groove. The base is connected to the vibration plate through a second spring. A vibration motor is fixedly installed at the bottom of the vibration plate, and transmission rods are fixed at equal intervals at the upper end of the vibration plate. The upper end of each transmission rod is connected to the hanging ring at the bottom of the receiving plate through a rubber ring.

[0012] Optionally, a plurality of shock absorbers are provided inside the weighing tank, and a load-bearing end of each shock absorber is fixed to the wear-resistant plate.

[0013] Optionally, a cleaning head is fixedly installed on the side of the partition, one side of the cleaning head contacts the upper surface of the pull-out plate, and the middle of the cleaning head is fixed to the cleaning brush through a fixing bolt, and the bottom of the cleaning brush contacts the upper end of the pull-out plate.

[0014] After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described below at the same time:

[0015] 1. The utility model weighs the materials loaded into the blast furnace body and controls the loading weight by arranging a pull-out plate, an electric push rod, a weighing sensor, a conveyor and an L-shaped cover to cooperate with each other, that is, when the materials are transported by the conveyor, the L-shaped cover and the movable cover can be used for quantitative transportation. The materials to be loaded are divided into one cover at a time. When the materials of one cover at a time are transported to the loading box, they fall on the pull-out plate and are weighed by the weighing sensor. After the weighing is completed and the threshold is reached, the electric push rod is started, and the telescopic end of the electric push rod is contracted to cause the pull-out plate to move along the cavity on the side of the partition. At this time, the material falls into the crushing area, is crushed twice by the crushing roller, and then falls to the receiving plate.

[0016] 2. The utility model provides an L-shaped cover and a movable cover that can be stretched by loosening a limit bolt, so that when there are differences in the sizes of materials transported by the conveyor, the movable cover can be stretched by loosening the limit bolt. At this time, the accommodating area between the movable cover and the L-shaped cover becomes larger, thereby being able to accommodate larger materials.

[0017] The specific implementation of the present invention will be described in further detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings described below are only some embodiments. A person skilled in the art can derive other drawings based on these drawings without inventive effort. In the drawings:

[0019] Figure 1 This is a schematic diagram of the main cross-sectional structure of the utility model;

[0020] Figure 2 This is a structural diagram of the combined parts of the loading box, electric push rod, collection bucket and guide pipe in the utility model;

[0021] Figure 3 for Figure 1 Schematic diagram of the structure of part A;

[0022] Figure 4 for Figure 2 Schematic diagram of the structure of part B;

[0023] Figure 5 for Figure 2 Schematic diagram of the C part structure;

[0024] Figure 6 for Figure 2 Schematic diagram of the D part structure.

[0025] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0026] 1. Material silo; 2. Blast furnace body; 3. Conveyor; 4. Discharge solenoid valve; 5. Fixed seat; 6. Support seat; 7. Collecting hopper; 8. Partition; 9. Pull-out plate; 10. Electric push rod; 11. Weighing trough; 12. T-rail; 13. Wear-resistant plate; 14. Weighing sensor; 15. Guide plate; 16. Discharge nozzle; 17. Guide pipe; 18. L-shaped cover; 19. Movable cover; 20. Limit bolt; 21. Crushing roller; 22. Receiving plate; 23. First spring; 24. Telescopic cover; 25. Groove; 26. Second spring; 27. Vibration plate; 28. Transmission rod; 29. ​​Rubber ring; 30. Shock absorber; 31. Cleaning head; 32. Fixed bolt; 33. Cleaning brush; 34. Loading box.

[0027] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] See also Figures 1 to 6The utility model provides a technical solution: a charging device for blast furnace ironmaking, comprising a silo 1, a blast furnace body 2, a conveyor 3 and a charging box 34. The blast furnace body 2 is provided on one side of the silo 1, and the charging box 34 is provided on one side of the upper end of the blast furnace body 2. Materials are transported between the charging box 34 and the silo 1 through the conveyor 3. A discharge solenoid valve 4 is provided at the discharge end of the silo 1.

[0030] The bottom of the charging box 34 is fixed to the blast furnace body 2 through a fixing seat 5 and a supporting seat 6. A collecting hopper 7 is provided at the upper end of the charging box 34. A partition 8 is fixedly installed in the middle of the charging box 34. A discharge hole is provided in the middle of the partition 8. A pull-out plate 9 is provided in the middle of the discharge hole. The side of the pull-out plate 9 is fixed to the telescopic end of the electric push rod 10. The electric push rod 10 is fixed to the side of the charging box 34 through a bracket. A weighing slot 11 is provided in the middle of the pull-out plate 9. T-rails 12 are fixedly installed on both sides of the weighing slot 11. A wear-resistant plate 13 is provided between the two T-rails 12. A weighing sensor 14 is provided between the wear-resistant plate 13 and the weighing slot 11. A guide plate 15 is provided at the bottom of the weighing slot 11. The guide plate 15 is fixed to the lower end of the partition 8 by screws.

[0031] A crushing chamber is provided below the partition 8, and a discharge nozzle 16 is connected to one side of the crushing chamber. A guide tube 17 is fixed to the side of the discharge nozzle 16. Considering that the feeding device in the comparative document is used to feed materials through a telescopic cylinder and a motor and other equipment, although it can achieve the effect of saving resources, it cannot control the amount of single-time drop during the feeding process, and the use effect is poor. The utility model weighs the materials fed to the blast furnace body 2 and controls the feeding by arranging a pull-out plate 9, an electric push rod 10, a weighing sensor 14, a conveyor 3 and an L-shaped cover 18. The weight of the material, that is, the material is transported by the conveyor 3, and the L-shaped cover 18 and the movable cover 19 can be used for quantitative transportation. The material to be loaded is divided into one cover at a time. When the material of each cover is transported to the loading box 34, it falls on the pull-out plate 9 and is weighed by the weighing sensor 14. After the weighing is completed and the threshold is reached, the electric push rod 10 is started, and the telescopic end of the electric push rod 10 contracts to make the pull-out plate 9 move along the cavity on the side of the partition 8. At this time, the material falls into the crushing area, is crushed for the second time by the crushing roller 21, and falls to the receiving plate 22.

[0032] Among them, an L-shaped cover 18 is fixed at intervals at the upper end section of the conveyor belt of the conveyor 3, and a cavity for installing a movable cover 19 is opened at the upper end of the L-shaped cover 18, and the movable cover 19 is fixed to the L-shaped cover 18 by a limit bolt 20. By setting the L-shaped cover 18 and the movable cover 19, they can be stretched by loosening the limit bolt 20, so that when there is a difference in the size of the materials transported by the conveyor 3, the movable cover 19 can be stretched by loosening the limit bolt 20. At this time, the accommodating area between the movable cover 19 and the L-shaped cover 18 becomes larger, so that larger materials can be accommodated.

[0033] Among them, a crushing roller 21 is provided inside the crushing chamber, and a receiving plate 22 is provided at the bottom of the crushing chamber, and the bottom of the receiving plate 22 is connected to the crushing chamber through a first spring 23, and the receiving plate 22 is fixed to the crushing chamber through a dust telescopic cover 24. By setting the crushing roller 21 in the crushing chamber, the material entering the blast furnace body 2 is crushed, thereby ensuring that the material entering the blast furnace body 2 can be crushed, which is convenient for smelting.

[0034] Among them, a groove 25 is provided in the middle of the crushing chamber, and a base is fixedly installed inside the groove 25. The base is connected to the vibration plate 27 through a second spring 26. A vibration motor is fixedly installed at the bottom of the vibration plate 27, and transmission rods 28 are fixed at equal intervals on the upper end of the vibration plate 27. The upper end of each transmission rod 28 is connected to the hanging ring at the bottom of the receiving plate 22 through a rubber ring 29. The receiving plate 22 can be vibrated by cooperating with each other through the setting of the vibration plate 27, the vibration motor and the transmission rod 28. The vibration of the receiving plate 22 will facilitate the crushed material to enter the blast furnace body 2 through the guide pipe 17, that is, the material will not be able to stay on the receiving plate 22 during the vibration of the receiving plate 22.

[0035] Among them, a plurality of shock absorbers 30 are provided inside the weighing trough 11, and the load-bearing end of each shock absorber 30 is fixed to the wear-resistant plate 13. By setting the shock absorber 30, a buffering protection effect is played on the weighing sensor 14, avoiding the situation where the material falls and instantly impacts the wear-resistant plate 13 groove, thereby causing damage to the weighing sensor 14. The existence of the shock absorber 30 can make the material slowly descend and contact the weighing sensor 14 after falling to the wear-resistant plate 13, and then the weighing sensor 14 will be used for detection.

[0036] Among them, a cleaning head 31 is fixedly installed on the side of the partition 8, one side of the cleaning head 31 is in contact with the upper surface of the pull-out plate 9, and the middle part of the cleaning head 31 is fixed to the cleaning brush 33 by a fixing bolt 32, and the bottom of the cleaning brush 33 is in contact with the upper end of the pull-out plate 9. By setting the cleaning head 31 and cooperating with the cleaning brush 33, the material debris attached to the surface of the pull-out plate 9 and the wear-resistant plate 13 can be cleaned, so that after the pull-out plate 9 is pulled out, the debris on the surface will be blocked by the cleaning head 31 and fall into the crushing chamber.

[0037] The present invention is not limited to the above-described embodiments. Any structural changes made under the guidance of the present invention should be understood by anyone. Any technical solution that is the same or similar to the present invention falls within the scope of protection of the present invention. The technology, shape, and structure not described in detail in the present invention are all known technologies.

Claims

1. A charging device for blast furnace ironmaking, comprising a silo (1), a blast furnace body (2), a conveyor (3) and a charging box (34), characterized in that: A blast furnace body (2) is provided on one side of the silo (1), a loading box (34) is provided on one side of the upper end of the blast furnace body (2), materials are transported between the loading box (34) and the silo (1) via a conveyor (3), and a discharge solenoid valve (4) is provided at the discharge end of the silo (1); The bottom of the loading box (34) is fixed to the blast furnace body (2) through a fixing seat (5) and a supporting seat (6), a collecting hopper (7) is provided at the upper end of the loading box (34), a partition (8) is fixedly installed in the middle of the loading box (34), a material discharge hole is provided in the middle of the partition (8), a pull-out plate (9) is provided in the middle of the material discharge hole, the side of the pull-out plate (9) is fixed to the telescopic end of the electric push rod (10), and the electric push rod (10) is fixed to the upper A weighing slot (11) is provided in the middle of the drawer plate (9) on the side of the material box (34), T-shaped rails (12) are fixedly installed on both sides of the weighing slot (11), a wear-resistant plate (13) is provided between the two T-shaped rails (12), a weighing sensor (14) is provided between the wear-resistant plate (13) and the weighing slot (11), and a guide plate (15) is provided at the bottom of the weighing slot (11), and the guide plate (15) is fixedly installed on the lower end of the partition (8) by screws; A pulverizing chamber is provided below the partition (8), one side of the pulverizing chamber is connected to a feed nozzle (16), and a feed guide pipe (17) is fixed to the side of the feed nozzle (16).

2. A blast furnace ironmaking charging device according to claim 1, characterized in that: An L-shaped cover (18) is fixed at intervals on the upper end section of the conveyor belt of the conveyor (3), a cavity for installing a movable cover (19) is opened at the upper end of the L-shaped cover (18), and the movable cover (19) is fixed to the L-shaped cover (18) through a limit bolt (20).

3. A blast furnace ironmaking charging device according to claim 1, characterized in that: A crushing roller (21) is provided inside the crushing chamber, a receiving plate (22) is provided at the bottom of the crushing chamber, and the bottom of the receiving plate (22) is connected to the crushing chamber via a first spring (23), and the receiving plate (22) is fixed to the crushing chamber via a dust telescopic cover (24).

4. A blast furnace ironmaking charging device according to claim 1, characterized in that: A groove (25) is provided in the middle of the pulverizing chamber, a base is fixedly installed inside the groove (25), and the base is connected to the vibration plate (27) through a second spring (26). A vibration motor is fixedly installed at the bottom of the vibration plate (27), and transmission rods (28) are fixed at equal intervals on the upper end of the vibration plate (27). The upper end of each transmission rod (28) is connected to the hanging ring at the bottom of the receiving plate (22) through a rubber ring (29).

5. The blast furnace ironmaking charging device according to claim 1, characterized in that: A plurality of shock absorbers (30) are provided inside the weighing tank (11), and a load-bearing end of each shock absorber (30) is fixed to the wear-resistant plate (13).

6. A blast furnace ironmaking charging device according to claim 1, characterized in that: A cleaning head (31) is fixedly mounted on the side of the partition (8), one side of the cleaning head (31) contacts the upper surface of the pull-out plate (9), and the middle of the cleaning head (31) is fixed to the cleaning brush (33) via a fixing bolt (32), and the bottom of the cleaning brush (33) contacts the upper end of the pull-out plate (9).

Images