Steel scrap cake pressing belt synchronous adding device

Abstract

The invention discloses a steel scrap cake pressing belt synchronous adding device, and relates to the technical field of steel scrap cake pressing additive adding. The steel scrap cake pressing belt synchronous adding device comprises a steel scrap cake pressing machine feeding port, a steel scrap cake pressing machine feeding belt conveyor and an additive feeding belt conveyor, and an outlet of the steel scrap cake pressing machine feeding belt conveyor and an outlet of the additive feeding belt conveyor are located above the steel scrap cake pressing machine feeding port. According to the steel scrap cake pressing belt synchronous adding device, the roller shafts of the additive conveying belt are driven through power of the roller shafts of the steel scrap conveying belt, on one hand, power is provided for the additive conveying belt, on the other hand, the control cost is saved, and additives can be automatically conveyed while steel scraps are conveyed.

Description

Technical Field

[0001] The invention relates to the technical field of adding additives to steel chip pressed cakes, in particular to a belt synchronous adding device for steel chip pressed cakes. Background Art

[0002] When purchasing scrap steel for converters, steel mills are increasingly turning their attention to scrap steel cakes made of steel scraps, wood shavings, welding slag, particle steel and iron-containing slag in order to control costs. Some steel mills even add more than 20% of steel scraps or steel shavings cakes in the long process. Due to the heat balance of the converter and other reasons, it is difficult to further increase the scrap steel ratio.

[0003] In the electric furnace steelmaking process, for the sake of cost reduction, the scrap steel in the electric furnace is often composed of medium scrap and sheared materials. The reason is that the electric furnace mainly relies on electrodes to melt scrap steel, and heavy scrap steel takes a long time to melt and has a high cost. In addition, electric furnaces prefer high-carbon materials, and full-process steel mills will also add a certain proportion of molten iron to the electric furnace based on economic conditions. As the proportion of molten iron in steel mills decreases, the proportion of scrap steel in electric furnace smelting will further increase, which poses higher challenges to the heat and time requirements for melting the molten pool.

[0004] In order to increase the ratio of scrap steel in smelting, the previous method of adding carbon-based materials into the converter is to add powdered or granular carbon into the furnace by blowing or adding from a hopper. The method of adding carbon-based materials into the electric furnace is similar. The biggest advantage of this method is that it is easy to operate and has low cost. However, since the carbon-based materials are added in the form of bulk materials, part of the fuel directly floats to the surface of the molten steel and burns before it enters the molten pool or burns in the form of carburizing, thereby reducing the recovery rate of the carbon-based materials, and the contribution to the heat in the furnace is limited, resulting in a lot of waste.

[0005] Adding too much steel cake during the steelmaking process will not only lead to insufficient heat, but also cause a more violent oxidation reaction in the converter after adding more steel shavings cake, due to the fact that the cake contains more iron oxides, and even cause splashing and other problems that affect production and environmental protection, and also affect the metal recovery rate of the cake.

[0006] Existing technologies such as CN202311669832.8 disclose a fast-melting steel scrap or steel shavings cake and a method for producing the same, and propose a method of adding additives to steel scrap or steel shavings cake to improve the performance of steel scrap or steel shavings cake when smelting scrap steel.

[0007] Currently in the test stage, the additives required for individual steel chips or steel shavings cakes can be manually added to the pressing bin or follow the steel chips or steel shavings into the pressing bin, but in the actual production stage, there is no efficient adding method in the existing technology.

[0008] In addition, the additives are usually in powder form. However, if they are not fully mixed with steel chips or steel shavings during the addition process, the additive powder in the pressed steel chips or steel shavings cakes is not dispersed enough, which will reduce the performance of the subsequent scrap steel smelting. Summary of the invention

[0009] 1. Technical issues to be solved

[0010] In view of the shortcomings of the prior art, the present invention provides a steel chip press belt synchronous adding device, which solves the following technical problems:

[0011] 1. The prior art lacks an automatic batch adding device for steel chip cakes with additives;

[0012] 2. The prior art lacks a device for fully mixing additives and steel chips.

[0013] (II) Technical solution

[0014] To achieve the above objectives, the present invention is implemented through the following technical solutions: a steel chip cake press belt synchronous adding device, comprising a steel chip cake press feeding port, a steel chip cake press feeding belt conveyor, and an additive feeding belt conveyor, wherein the outlet of the steel chip cake press feeding belt conveyor and the outlet of the additive feeding belt conveyor are located above the steel chip cake press feeding port, and the feeding of the steel chip cake press feeding belt conveyor and the additive feeding belt conveyor can enter the steel chip cake press feeding port, and the rotating shaft of the drum at the outlet of the steel chip cake press feeding belt conveyor is provided with an extension section A, and a pulley A is provided on the extension section A, and the rotating shaft of the drum at the outlet of the additive feeding belt conveyor is provided with an extension section B, and a gear A is provided at the end of the extension section B, and a pulley B is provided on the outer side of the additive feeding belt conveyor, and a section of the pulley B close to the gear A is provided with a gear B, and the gear A can mesh with the gear B, and the pulley A and the pulley B are driven by a belt, and the pulley B drives the transmission shaft of the additive feeding belt conveyor to rotate through the gear A and the gear B.

[0015] Preferably, the pulley B is arranged on the outside of the additive feeding belt conveyor through a bearing bracket, a sliding hole is opened on the bearing bracket, the bearing in the bearing bracket is slidably connected to the sliding hole, a spring is arranged between the bearing and the inner wall of the sliding hole, when the rotating shaft of the pulley B is not subjected to force, the gear B connected to the pulley B does not mesh with the gear A, and when the pulley B is subjected to a force in the direction of the gear A, the gear B connected to the pulley B meshes with the gear A.

[0016] Preferably, the lower end of the feeding port of the steel chip cake press is connected to a vibrating section, and a vibrating device is provided on the side of the vibrating section.

[0017] Preferably, both the upper end and the lower end of the vibration section are provided with a corrugated section.

[0018] Preferably, a weighing module B is provided on the additive feeding belt conveyor, and a weighing module A is provided on the steel chip cake press feeding belt conveyor.

[0019] Preferably, it includes a controller and an additive hopper, the lower end of the additive hopper is provided with an electric control valve, the weighing module B, the weighing module A, and the electric control valve are all electrically connected to the controller, and the controller can adjust the opening of the electric control valve according to the weight ratio between the additive and the steel chips and the actual weighing weight of the weighing module B and the weighing module A, thereby controlling the addition ratio of the additive.

[0020] Preferably, a controller is included, an electronically controlled clutch is arranged between gear A and gear B, the electronically controlled clutch is electrically connected to the controller, and the controller can control the opening and closing of the electronically controlled clutch. When the electronically controlled clutch is in the open position, gear A and gear B are not engaged; when the electronically controlled clutch is in the closed position, gear A and gear B are engaged.

[0021] Preferably, a clutch control lever is sleeved on the rotating shaft of the pulley B. When the clutch control lever is pulled downward, it can drive the rotating shaft of the pulley B and the gear B set at the end of the rotating shaft to move downward, and make the gear B engage with the gear A. When the clutch control lever is pushed upward, it can drive the rotating shaft of the pulley B and the gear B set at the end of the rotating shaft to move upward, and make the gear B disengage from the gear A.

[0022] Preferably, the vibrating device comprises a cam, and the cam periodically pushes the vibrating section when rotating, thereby achieving uniform mixing of the steel chips and the additive.

[0023] (III) Beneficial effects

[0024] The present invention provides a synchronous adding device for steel chip cake pressing belt. It has the following beneficial effects:

[0025] (1) The steel chip cake belt synchronous adding device utilizes the power of the steel chip conveying belt roller to drive the roller of the additive conveying belt. On the one hand, it provides power for the additive conveying belt, and on the other hand, it also saves control costs. The additive can also be automatically conveyed while the steel chips are conveyed.

[0026] (2) The synchronous adding device for steel chip cake pressing belt can realize the control of the rotation of the roller shaft of the additive conveying belt by arranging a clutch device on the roller shaft of the additive conveying belt.

[0027] (3) The steel chip cake pressing belt synchronous adding device improves the mixing degree of additives and steel chips by arranging a vibrating structure below the feeding port. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the present invention;

[0029] Figure 2 It is a schematic diagram of the clutch device in the open position state;

[0030] Figure 3 It is a schematic diagram of the clutch device in the closed position.

[0031] In the figure: 1. feeding port of steel chip cake press; 11. vibrating section; 2. feeding belt conveyor of steel chip cake press; 21. pulley A; 22. weighing module A; 3. additive feeding belt conveyor; 31. pulley B, 32. weighing module B; 33. transmission shaft; 4. clutch mechanism; 41. electric control valve; 44. clutch control lever; 5. additive hopper; 6. controller; 7. belt; 8. vibrating device. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0033] Example 1

[0034] A steel chip cake press belt synchronous adding device comprises a steel chip cake press feeding port 1, a steel chip cake press feeding belt conveyor 2, and an additive feeding belt conveyor 3. The outlet of the steel chip cake press feeding belt conveyor 2 and the outlet of the additive feeding belt conveyor 3 are located above the steel chip cake press feeding port 1. The feeding of the steel chip cake press feeding belt conveyor 2 and the additive feeding belt conveyor 3 can enter the steel chip cake press feeding port 1. The rotating shaft of the drum at the outlet of the steel chip cake press feeding belt conveyor 2 is provided with an extension section A. The extension section A is provided with a rotation shaft of the drum at the outlet of the steel chip cake press feeding belt conveyor 2. A pulley A21 is provided, and the rotating shaft of the roller at the outlet of the additive feeding belt conveyor 3 is provided with an extension section B, and a gear A is provided at the end of the extension section B. A pulley B31 is provided on the outer side of the additive feeding belt conveyor 3, and a section of the pulley B31 close to the gear A is provided with a gear B, and the gear A can mesh with the gear B. The pulley A21 and the pulley B31 are transmitted through the belt 7, and the pulley B31 drives the transmission shaft 33 of the additive feeding belt conveyor 3 to rotate through the gears A and the gear B.

[0035] in:

[0036] In order to achieve control over the proportion of additives, a controller 6 and an additive hopper 5 are included. A weighing module B32 is provided on the additive feeding belt conveyor 3, a weighing module A21 is provided on the steel chip cake press feeding belt conveyor 2, and an electric control valve 41 is provided at the lower end of the additive hopper 5. The weighing module B32, the weighing module A22, and the electric control valve 41 are all electrically connected to the controller 6. The controller 6 can adjust the opening of the electric control valve 41 according to the weight ratio between the additive and the steel chips and the actual weighing weight of the weighing module B32 and the weighing module A21, thereby controlling the addition ratio of the additive.

[0037] In order to realize the control of the additive feeding belt conveyor 3, an electronically controlled clutch is arranged between gear A and gear B, and the electronically controlled clutch is electrically connected to the controller 6, and the controller 6 can control the opening and closing of the electronically controlled clutch. When the electronically controlled clutch is in the open position, gear A and gear B are not meshed; when the electronically controlled clutch is in the closed position, gear A and gear B are meshed. The electronically controlled clutch is a clutch in the prior art.

[0038] The additive can be the carbon-based material powder or iron oxide additive mentioned in CN202311669832.8 A fast-melting steel scrap or steel shavings cake and their production method.

[0039] Example 2

[0040] On the basis of Example 1, the pulley B31 is arranged on the outside of the additive feeding belt conveyor 3 through a bearing bracket, and a sliding hole is opened on the bearing bracket. The bearing in the bearing bracket is slidably connected to the sliding hole, and a spring is arranged between the bearing and the inner wall of the sliding hole. When the rotating shaft of the pulley B31 is not subjected to force, the gear B connected to the pulley B31 does not mesh with the gear A. When the pulley B31 is subjected to a force in the direction of the gear A, the gear B connected to the pulley B31 meshes with the gear A. A clutch control lever 44 is sleeved on the rotating shaft of the pulley B31. When the clutch control lever 44 is pulled downward, it can drive the rotating shaft of the pulley B31 and the gear B set at the end of the rotating shaft to move downward, and make the gear B mesh with the gear A. When the clutch control lever 44 is pushed upward, it can drive the rotating shaft of the pulley B31 and the gear B set at the end of the rotating shaft to move upward, and make the gear B disengage from the meshing state with the gear A.

[0041] Although the additive feeding belt conveyor 3 can be controlled by the clutch mechanism 4 in this embodiment as in the first embodiment, the present embodiment emphasizes the partial mechanical mechanism in the control, and specifically does not limit the control method of the clutch control lever 44 .

[0042] Example 3

[0043] On the basis of Example 1, the lower end of the steel chip cake press feeding port 1 is connected with a vibrating section 11, and a vibrating device 8 is arranged on the side of the vibrating section 11. The vibrating device 8 includes a cam, and when the cam rotates, it periodically pushes the vibrating section 11, thereby achieving uniform mixing of steel chips and additives. The upper and lower ends of the vibrating section 11 are both provided with a corrugated section 12. The cam mechanism is a cam mechanism of the prior art, and its rotation speed and eccentric weight are both parameter settings in the prior art.

[0044] 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.

[0045] 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 synchronous adding device for steel chip cake press belt, comprising a steel chip cake press feeding port (1), a steel chip cake press feeding belt conveyor (2), and an additive feeding belt conveyor (3), wherein the outlet of the steel chip cake press feeding belt conveyor (2) and the outlet of the additive feeding belt conveyor (3) are located above the steel chip cake press feeding port (1), and the feeding of the steel chip cake press feeding belt conveyor (2) and the additive feeding belt conveyor (3) can enter the steel chip cake press feeding port (1), characterized in that: The rotating shaft of the roller at the outlet of the steel chip cake press feeding belt conveyor (2) is provided with an extension section A, and the extension section A is provided with a pulley A (21). The rotating shaft of the roller at the outlet of the additive feeding belt conveyor (3) is provided with an extension section B, and the end of the extension section B is provided with a gear A. The outer side of the additive feeding belt conveyor (3) is provided with a pulley B (31), and a section of the pulley B (31) close to the gear A is provided with a gear B, and the gear A can mesh with the gear B. The pulley A (21) and the pulley B (31) are driven by a belt (7), and the pulley B (31) drives the transmission shaft (33) of the additive feeding belt conveyor (3) to rotate through the gears A and B.

2. The steel chip cake belt synchronous adding device according to claim 1, characterized in that: The pulley B (31) is arranged on the outer side of the additive feeding belt conveyor (3) through a bearing bracket, a sliding hole is opened on the bearing bracket, a bearing in the bearing bracket is slidably connected to the sliding hole, a spring is arranged between the bearing and the inner wall of the sliding hole, when the rotating shaft of the pulley B (31) is not subjected to force, the gear B connected to the pulley B (31) does not mesh with the gear A, and when the pulley B (31) is subjected to a force in the direction of the gear A, the gear B connected to the pulley B (31) meshes with the gear A.

3. The steel chip cake belt synchronous adding device according to claim 1, characterized in that: The lower end of the steel chip cake press feeding port (1) is connected to a vibrating section (11), and a vibrating device (8) is provided on the side of the vibrating section (11).

4. The steel chip cake belt synchronous adding device according to claim 3 is characterized by: The upper end and the lower end of the vibration section (11) are both provided with a corrugated section (12).

5. The steel chip cake belt synchronous adding device according to claim 1, characterized in that: The additive feeding belt conveyor (3) is provided with a weighing module B (32), and the steel chip cake press feeding belt conveyor (2) is provided with a weighing module A (21).

6. The steel chip cake belt synchronous adding device according to claim 5, characterized in that: The invention comprises a controller (6) and an additive hopper (5), wherein an electric control valve (41) is arranged at the lower end of the additive hopper (5), and the weighing module B (32), the weighing module A (22), and the electric control valve (41) are all electrically connected to the controller (6). The controller (6) can adjust the opening of the electric control valve (41) according to the weight ratio between the additive and the steel chips and the actual weighing weight of the weighing module B (32) and the weighing module A (21), thereby controlling the addition ratio of the additive.

7. The steel chip cake belt synchronous adding device according to claim 1, characterized in that: The invention comprises a controller (6), wherein an electric-controlled clutch is arranged between the gear A and the gear B, the electric-controlled clutch is electrically connected to the controller (6), and the controller (6) is capable of controlling the opening and closing of the electric-controlled clutch. When the electric-controlled clutch is in the open position, the gear A and the gear B are not meshed. When the electronically controlled clutch is in the engaged position, gear A and gear B are meshed.

8. The steel chip cake belt synchronous adding device according to claim 2, characterized in that: A clutch control lever (44) is sleeved on the rotating shaft of the pulley B (31). When the clutch control lever (44) is pulled downward, it can drive the rotating shaft of the pulley B (31) and the gear B arranged at the end of the rotating shaft to move downward, and make the gear B mesh with the gear A. When the clutch control lever (44) is pushed upward, it can drive the rotating shaft of the pulley B (31) and the gear B arranged at the end of the rotating shaft to move upward, and make the gear B and the gear A disengage from the meshing state.

9. The steel chip cake belt synchronous adding device according to claim 3, characterized in that: The vibrating device (8) comprises a cam, and when the cam rotates, it periodically pushes the vibrating section (11), thereby achieving uniform mixing of steel chips and additives.

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