Feeding device for side-blown converter

Abstract

The utility model relates to the technical field of side-blown furnaces, in particular to a feeding device for a side-blown furnace, which comprises a feeding box fixedly connected to the side-blown furnace; the supporting frame is fixedly connected to the feeding box; the conveyor is fixedly connected to the supporting frame; the conveyor belt is wound on the conveyor at the lowest layer; the screening belts are wound on the conveyors at other positions; screening holes are formed in the screening belt; the partition plate is fixedly connected into the feeding box; and the rotating plate is rotationally connected into the feeding box. The screening belt capable of screening and transporting the fuel is used, the fuel with different particle sizes can be transported and stored independently, and the fuel with different particle sizes can be selectively added according to the use requirements of the side-blown converter, so that the temperature uniformity in the side-blown converter is ensured, the processing quality of products is ensured, the fuel is fully used, and the production cost is reduced. And the combustion efficiency of the fuel is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of side-blown furnaces, in particular to a feeding device for side-blown furnaces. Background Art

[0002] The side-blowing furnace is a device that promotes combustion and chemical reactions by blowing oxygen sideways. Its unique side-blowing method can ensure effective contact between the gas and the materials in the furnace, thereby effectively improving the reaction efficiency of the materials. Therefore, it has been widely used in many fields such as metal smelting.

[0003] However, when adding fuel to the side-blown furnace, since fuels of different particle sizes have different combustion characteristics, if the added fuel particle sizes are mixed, the combustion rates of fuels of different particle sizes are different, which will lead to uneven temperature distribution in the furnace, affecting the reaction process of the product, causing product quality fluctuations and producing defective products. In addition, the uneven fuel particle size will also lead to a decrease in overall combustion efficiency. Large particle size fuel may not be completely burned and produce unburned particles, which not only causes fuel waste, but also reduces combustion efficiency, increases fuel consumption, and pushes up operating costs. Utility Model Content

[0004] According to the above-mentioned defects of the prior art, the utility model provides a feeding device for a side-blown furnace which can screen the particle size of fuel so as to evenly provide fuel.

[0005] The technical solution is: a feeding device for a side-blown furnace, comprising: a feeding box, the feeding box is fixedly connected to the side-blown furnace;

[0006] A support frame is fixedly connected to the feed box;

[0007] It also includes: a conveyor, the support frame is fixedly connected with the conveyor, the conveyor is provided with at least two layers, a step-shaped height difference is provided between the layers of conveyors, and the end of the conveyor leads to the feed box;

[0008] Conveyor belt: a conveyor belt is wound around the conveyor at the lowest level;

[0009] Screening belts: Screening belts are wound around the conveyors at other locations;

[0010] The screening belt is provided with screening holes, and the apertures of the screening holes on each layer of the screening belt decrease gradually from high to low;

[0011] A feed hopper is fixedly connected to the conveyor at the uppermost position;

[0012] Transfer buckets are fixedly connected to all conveyors except the lowest level, and are arranged below the screening belt;

[0013] A docking bucket is fixedly connected to the transfer bucket;

[0014] Partitions are fixedly connected in the feed box, and the partitions separate compartments in the feed box. The number of compartments is the same as the number of conveyors, and each conveyor leads to each compartment respectively;

[0015] Rotating plates are rotatably connected in the feed box. The number of rotating plates is the same as the number of conveyors, and they are respectively arranged in each compartment;

[0016] Motor: The feed box is fixedly connected with a motor, the number of motors is consistent with the number of conveyors, and the output end of each motor is respectively fixed to the rotating shaft of each rotating plate;

[0017] The controller is fixedly connected to the support frame, and the controller is electrically connected to the conveyor and the motor.

[0018] As a further preferred solution, it also includes: a material pushing mechanism, which is connected to all conveyors except the lowest layer, and is arranged below the screening belt;

[0019] The material ejecting mechanism comprises: a mounting frame, the mounting frame is fixedly connected to the conveyor;

[0020] A top plate is slidably connected to the mounting frame;

[0021] A return spring is fixedly connected between the mounting frame and the top plate;

[0022] A contact block is fixedly connected to the top plate, and the contact block cooperates with the screening hole.

[0023] As a further preferred solution, it also includes: a telescopic sleeve, a telescopic sleeve is fixedly connected between the mounting frame and the top plate, and the telescopic sleeve is arranged outside the reset spring.

[0024] As a further preferred solution, it also includes: a baffle, and the baffle is fixedly connected to the conveyor.

[0025] As a further preferred solution, it also includes: a cover plate, and a cover plate is placed on the feed hopper.

[0026] As a further preferred solution, it also includes: a protective cover, and the top of the feed box is fixedly connected with the protective cover.

[0027] Compared with the prior art, the utility model has the following advantages: Beneficial effects of the utility model: The utility model uses a screening belt that can screen and transport fuel, and transports and stores fuels of different particle sizes separately, and can choose to add fuels of different particle sizes according to the use requirements of the side-blown furnace, thereby ensuring the temperature uniformity in the side-blown furnace, ensuring the processing quality of the product, and making full use of the fuel to improve the combustion efficiency of the fuel. The utility model uses a material-lifting mechanism to cooperate with the screening belt to prevent the fuel from getting stuck on the screening belt and ensure the normal operation of the screening belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a structural schematic diagram of the utility model and the side-blowing furnace.

[0029] Figure 2 It is a partial structural sectional view of the utility model.

[0030] Figure 3 It is a schematic diagram of the position structure of the screening belt, the discharging hopper and the ejecting mechanism of the utility model.

[0031] Figure 4 This is a cross-sectional view of the connection structure between the rotating plate and the motor of the utility model.

[0032] Figure 5 It is a schematic diagram of the connection structure of the ejecting mechanism of the utility model.

[0033] Among them: 1-side blowing furnace, 2-feed box, 3-support frame, 4-conveyor, 5-feed hopper, 6-screening belt, 61-screening hole, 7-transfer bucket, 8-docking bucket, 9-rotating plate, 10-motor, 11-conveyor belt, 12-partition, 13-controller, 14-top material mechanism, 141-mounting frame, 142-top plate, 143-reset spring, 144-contact block, 15-telescopic sleeve, 16-baffle, 17-cover plate, 18-protective cover. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Example: Figure 1-Figure 4As shown, it includes: a feed box 2, which is fixedly installed above the feed part of the side-blown furnace 1, and the fuel is added to the feed part of the side-blown furnace 1 through the feed box 2, and is pushed into the side-blown furnace 1 by the push plate in the feed part of the side-blown furnace 1; a support frame 3, on the left side of the feed box 2, a support frame 3 is fixedly installed; a conveyor 4, two layers of conveyors 4 are fixedly installed on the support frame 3, and a step-shaped height difference is set between the two layers of conveyors 4, and the ends of the two layers of conveyors 4 both lead to the feed box 2; a screening belt 6, a screening belt 6 is wound around the conveyor 4 at the upper position, and the conveyor 4 controls the screening belt 6 to transport the fuel to the feed box 2; the screening belt 6 is provided with screening holes 61 for screening fuels of different particle sizes; a conveyor belt 11, a conveyor belt 11 is wound around the conveyor 4 at the lower position, and the conveyor 4 controls the conveyor belt 11 to transport the fuel to the feed box 2; a feed hopper 5, a conveyor at the upper position 4 is fixedly mounted with a feed hopper 5; a transfer hopper 7, a transfer hopper 7 is fixedly mounted on the conveyor 4 at the upper position, and the transfer hopper 7 is arranged below the screening belt 6; a docking hopper 8, a docking hopper 8 is fixedly mounted on the transfer hopper 7, and the end of the docking hopper 8 is docked on the conveyor belt 11; a partition 12, a partition 12 is fixedly mounted in the feed box 2, and the partition 12 separates two compartments in the feed box 2, and the two conveyors 4 lead to these two compartments respectively; a rotating plate 9, a rotating plate 9 is rotatably mounted in the feed box 2, and two rotating plates 9 are provided, which are respectively arranged in two compartments; a motor 10, a motor 10 is fixedly mounted on the feed box 2, and two motors 10 are provided, and the output ends of the two motors 10 are respectively fixed to the rotating shafts of the two rotating plates 9; a controller 13, a controller 13 is fixedly mounted on the support frame 3, and the controller 13 is electrically connected to the two conveyors 4 and the two motors 10.

[0036] The controller 13 is used to control the start of the two conveyors 4, and the fuel is added into the feed hopper 5. The fuel is guided by the feed hopper 5 to be added to the screening belt 6, and is screened by the screening belt 6. The large-particle fuel remains on the screening belt 6 and is transported by the screening belt 6 to the compartment at the rear of the feed box 2. The small-particle fuel passes through the screening belt 6 and falls on the transfer bucket 7, and is then transferred by the transfer bucket 7 to the docking bucket 8. The docking bucket 8 then transfers the small-particle fuel to the conveyor belt 11. Finally, the small-particle fuel is transported by the conveyor belt 11 to the compartment at the front of the feed box 2.

[0037] When the side-blown furnace 1 needs to use large-particle fuel, the control motor 10 is started, and the rotating plate 9 at the rear position is rotated downward to add the large-particle fuel in the rear compartment of the feed box 2 to the feed part of the side-blown furnace 1. Conversely, the rotating plate 9 at the front position is rotated downward. Therefore, adding fuel using the device can achieve fuel screening to provide the side-blown furnace 1 with fuel of uniform particle size.

[0038] like Figure 3 and Figure 5As shown, it also includes: a pushing mechanism 14, which is installed on the conveyor 4 at the upper position, and the pushing mechanism 14 cooperates with the screening belt 6 to prevent the fuel from clogging the screening hole 61. The pushing mechanism 14 is arranged below the screening belt 6, and the pushing mechanism 14 includes: a mounting frame 141, on which the mounting frame 141 is fixedly installed; a top plate 142, on which the top plate 142 is slidably installed, and the top plate 142 moves up and down; a reset spring 143, on which the reset spring 143 is fixedly installed between the mounting frame 141 and the top plate 142; a contact block 144, on which the contact block 144 is fixedly installed, and the contact block 144 corresponds to the position of the screening hole 61, and the top of the contact block 144 is provided with an inclined surface, and the reset spring 143 inserts the contact block 144 into the screening hole 61.

[0039] When the screening belt 6 is controlled to move by the conveyor 4, a relative displacement occurs between the screening holes 61 and the contact block 144, so that the screening belt 6 contacts the inclined surface of the contact block 144, squeezing the contact block 144 to move downward, and the reset spring 143 is compressed. When the next row of screening holes 61 moves to the position of the contact block 144, the reset spring 143 resets the contact block 144 upward, and the contact block 144 pushes the fuel stuck in the screening holes 61 upward, thereby preventing the screening belt 6 from being blocked.

[0040] like Figure 5 As shown, it also includes: a telescopic sleeve 15, which is fixedly installed between the mounting frame 141 and the top plate 142, and the telescopic sleeve 15 is sleeved outside the reset spring 143 to protect the reset spring 143 and prevent the fuel from being stuck between the reset springs 143, causing the contact block 144 to be unusable.

[0041] like Figure 1-Figure 2 As shown, it also includes: a baffle 16, which is fixedly installed on the conveyor 4. The baffle 16 is used to prevent fuel from falling from the conveyor 4, reduce fuel loss, and reduce fuel recovery and cleaning steps.

[0042] like Figure 1-Figure 2 As shown, it also includes: a cover plate 17. The cover plate 17 is placed on the feed hopper 5. After the fuel is added into the feed hopper 5, the cover plate 17 can be covered to prevent the fuel from falling and prevent the dust in the fuel from splashing out.

[0043] like Figure 1 As shown, it also includes: a protective cover 18. The top of the feed box 2 is fixedly installed with the protective cover 18. The protective cover 18 is used to prevent sparks from the side-blown furnace 1 from splashing, so as to improve the safety of the device.

[0044] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A feeding device for a side-blown furnace, comprising: A feed box (2), the feed box (2) is fixedly connected to the side-blown furnace (1), the feed box (2) is fixedly connected to a support frame (3), and is characterized in that: it also includes: a conveyor (4) is fixedly connected to the support frame (3), the conveyor (4) is provided with at least two layers, and a step-shaped height difference is provided between each layer of the conveyor (4), the end of the conveyor (4) leads to the feed box (2), a conveyor belt (11) is wound around the conveyor (4) at the bottom layer, and a screening belt (6) is wound around the conveyor (4) at other positions, and the screening belt (6) is provided with screening holes (61), and the aperture of the screening holes (61) on each layer of the screening belt (6) decreases step by step from high to low, the conveyor (4) at the top layer is fixedly connected to a feed hopper (5), and the conveyors (4) other than the bottom layer are all fixedly connected to a transfer hopper (7), and the transfer The bucket (7) is arranged below the screening belt (6); the transfer bucket (7) is fixedly connected to a docking bucket (8); a partition (12) is fixedly connected inside the feed box (2); the partition (12) separates compartments inside the feed box (2); the number of compartments is consistent with the number of conveyors (4); each conveyor (4) leads to each compartment; a rotating plate (9) is rotatably connected inside the feed box (2); the number of rotating plates (9) is consistent with the number of conveyors (4) and is respectively arranged in each compartment; a motor (10) is fixedly connected to the feed box (2); the number of motors (10) is consistent with the number of conveyors (4); the output end of each motor (10) is respectively fixed to the rotating shaft of each rotating plate (9); a controller (13) is fixedly connected to the support frame (3); the controller (13) is electrically connected to the conveyor (4) and the motor (10).

2. A feeding device for a side-blown furnace according to claim 1, characterized in that: Also includes: A material pushing mechanism (14), wherein all conveyors (4) except the one at the bottom are connected with the material pushing mechanism (14), and the material pushing mechanism (14) is arranged below the screening belt (6); The material ejecting mechanism (14) comprises: a mounting frame (141), the mounting frame (141) being fixedly connected to the conveyor (4); A top plate (142) is slidably connected to the mounting frame (141); A return spring (143), wherein the mounting frame (141) and the top plate (142) are fixedly connected with the return spring (143); A contact block (144) is fixedly connected to the top plate (142), and the contact block (144) cooperates with the screening hole (61).

3. A feeding device for a side-blown furnace as claimed in claim 2, characterized in that: Also includes: A telescopic sleeve (15) is fixedly connected between the mounting frame (141) and the top plate (142), and the telescopic sleeve (15) is sleeved outside the return spring (143).

4. A feeding device for a side-blown furnace as claimed in claim 3, characterized in that: Also includes: A baffle (16) is fixedly connected to the conveyor (4).

5. A feeding device for a side-blown furnace as claimed in claim 4, characterized in that: Also includes: A cover plate (17) is placed on the feed hopper (5).

6. A feeding device for a side-blown furnace as claimed in claim 5, characterized in that: Also includes: A protective cover (18) is fixedly connected to the top of the feed box (2).

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