A device for increasing silicon content of molten iron in a blast furnace

Abstract

The present application relates to the field of silicon increasing device, specifically to a blast furnace front molten iron silicon increasing device, which comprises two guide rails and a plurality of limiting supports arranged below the guide rails, and further comprises two supporting frames arranged at the sides of the guide rails and connected with the limiting supports, a traveling rack arranged at the upper end of one supporting frame, a plurality of driving mechanisms arranged at the upper ends of the guide rails, each driving mechanism comprising a supporting plate capable of moving along the guide rail, and a plurality of accelerating bag breaking assemblies connected with the supporting plates, each accelerating bag breaking assembly comprising a moving platform, a triangular pyramid knife, an upper accelerating mechanism and a lower accelerating mechanism, the upper accelerating mechanism being arranged above the supporting plate and capable of accelerating the downward movement of a material bag, and the lower accelerating mechanism being arranged at the upper end of the moving platform and capable of accelerating the upward movement of the triangular pyramid knife to break the material bag. The device can break the material bag faster, realize the rapid discharge of the material and improve the working efficiency of the device.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of silicon increasing devices, in particular to a high furnace front molten iron silicon increasing device. BACKGROUND

[0002] When smelting molten iron for casting in a blast furnace, if the silicon content of the molten iron is lower than the target value of the required grade, the silicon content can be adjusted to the target value through molten iron silicon increasing technology. Sometimes, in order to obtain high-quality and pure iron, low-silicon smelting and blast furnace front molten iron pretreatment technology are used to increase the silicon content of the molten iron to the target value of the required grade.

[0003] At present, in the prior art, most of the blast furnace front silicon increasing devices use fixed pipes for feeding, which cannot achieve precise positioning effect, and cannot be moved, which cannot meet the needs of various operation conditions. The feeding operation of the traditional blast furnace front silicon increasing device is complicated, especially for bagged materials, which is easy to cause material scattering.

[0004] The device with publication number CN214455233U can be randomly moved, can precisely increase silicon, can accurately measure the amount of silicon, and is convenient for feeding. However, the device cannot quickly open the bag when opening the material bag, and the tripod type cutter cannot quickly cut the material bag when moving upward.

[0005] In view of the above technical deficiencies, the tripod type cutter can be moved upward at a step-by-step acceleration, and the material bag can be moved downward at an acceleration. When the material bag and the tripod type cutter move at an opposite acceleration, the material bag can be quickly poked open, the unloading speed is enhanced, and the work efficiency is improved.

[0006] In comparison, it is necessary to design a blast furnace front molten iron silicon increasing device. SUMMARY

[0007] Therefore, in view of the problems in the prior art, a blast furnace front molten iron silicon increasing device is provided.

[0008] To solve the problems in the prior art, the technical scheme adopted by the present application is as follows:

[0009] A blast furnace front molten iron silicon increasing device, comprising two guide rails and a plurality of limiting supports arranged in a uniform array below the two guide rails, further comprising:

[0010] Two supporting frames arranged on the side of the two guide rails and connected with the plurality of limiting supports;

[0011] A traveling rack arranged at the upper end of one supporting frame;

[0012] A plurality of driving mechanisms are arranged at the upper ends of the two guide rails, and the driving mechanism comprises a driving motor, a traveling gear, a supporting plate, a sensor and a detector. The supporting plate is arranged at the upper end of the two guide rails, the driving motor is arranged at the upper end of the supporting plate, the traveling gear is arranged at the upper end of the traveling rack and is engaged with the traveling rack, the sensor is arranged at one end of the supporting plate away from the driving motor, and the detector is arranged at the upper end of the other supporting frame without the traveling rack. The detector is electrically connected with the sensor.

[0013] A plurality of acceleration bag breaking assemblies are respectively connected with the supporting plates, and each acceleration bag breaking assembly comprises a moving platform, a triangular pyramid knife, a hopper, an upper acceleration mechanism, an electromagnetic valve and a lower acceleration mechanism. The upper acceleration mechanism is arranged above the supporting plate and can accelerate the downward movement of the material bag. The moving platform is arranged below the supporting plate. The hopper is arranged above the moving platform and is slidably connected with the moving platform through a pad. The triangular pyramid knife is arranged at the upper end of the hopper through a support. The electromagnetic valve is arranged at the lower end of the moving platform. The output end of the electromagnetic valve is connected with the lower end of the hopper through a hose. The lower acceleration mechanism is arranged at the upper end of the moving platform and can accelerate the upward movement of the triangular pyramid knife to pierce the material bag.

[0014] Further, the driving mechanism further comprises a first bevel gear and a second bevel gear. The first bevel gear is keyed connected with the output end of the driving motor. The second bevel gear is arranged at the lower end of the first bevel gear and is engaged with the first bevel gear. The second bevel gear is coaxially fixedly connected with the traveling gear.

[0015] Further, the driving mechanism further comprises two limiting sliding blocks and eight limiting pin shafts. Two limiting through holes are respectively formed in the two limiting supports. The two limiting sliding blocks are respectively connected with the supporting plate, and the two limiting sliding blocks are respectively slidably connected with the two guide rails.

[0016] Further, the acceleration bag breaking assembly further comprises two vibration motors, eight limiting pin shafts and two bearing platforms. The two vibration motors are symmetrically arranged at the upper end of the moving platform. The output ends of the two vibration motors are connected with the lower end of the hopper. The two bearing platforms are symmetrically arranged at the two ends of the moving platform. The eight limiting pin shafts are divided into two groups, each group of limiting pin shafts is fixedly connected with the upper end of the two bearing platforms, and each group of limiting pin shafts is slidably connected with the two limiting through holes in the corresponding limiting support. Each group of limiting pin shafts is fixedly connected with the supporting plate after passing through the corresponding limiting through hole.

[0017] Further, the accelerating bag breaking assembly further comprises a driving motor, which is arranged above the supporting plate and connected with the supporting plate through a motor frame; the upper accelerating mechanism comprises a transfer gear ring, two conical rollers, two second limiting sliding blocks, four second limiting pins, two third bevel gears, two fourth bevel gears and two synchronous gears; the two conical rollers are arranged above the supporting plate through brackets respectively, and one of the conical rollers is further connected with the output end of the driving motor through a key; the four second limiting pins are arranged in two groups respectively, and each group of the second limiting pins is arranged below the two conical rollers; the two second limiting sliding blocks are connected with one group of the second limiting pins through sliding respectively; the two third bevel gears are connected with the two conical rollers through keys respectively at the ends away from the driving motor; the two fourth bevel gears are arranged at the lower ends of the two third bevel gears and engaged with the two third bevel gears respectively; the two synchronous gears are arranged at the two fourth bevel gears through keys respectively; the transfer gear ring is arranged between the two synchronous gears and engaged with the two synchronous gears simultaneously; and the transfer gear ring is connected with the upper end of the supporting plate through rotation.

[0018] Further, the upper accelerating mechanism further comprises two transfer boxes, two sliding racks, two traction ropes, four sliding gears, two first limiting blocks, four first limiting pins, two positioning rollers, two positioning supports and two conical rollers; the two transfer boxes are arranged at the lower ends of the two bearing platforms in a symmetrical state and connected with the moving platform; the four sliding gears are arranged at the two ends of the two transfer boxes through pins and connected with each other; the four sliding gears are engaged with the two sliding racks respectively; the four first limiting pins are arranged in the two transfer boxes respectively; the two first limiting sliding blocks are connected with the two first limiting pins in the two transfer boxes through sliding respectively; the two positioning rollers are arranged above the two bearing platforms through brackets respectively; one end of the two traction ropes is connected with the small ends of the two conical rollers respectively; the other end is connected with the second limiting blocks and the first limiting blocks through sliding; and the middle parts of the two traction ropes are abutted against the positioning rollers.

[0019] Further, the lower accelerating mechanism comprises a positioning supporting plate, a sliding supporting plate, a sliding bracket, two rising racks, two reversing gears and two descending racks; the two rising racks are fixedly connected with the two sides of the moving platform respectively; the two reversing gears are arranged above the supporting plate through brackets respectively; the two descending racks are arranged beside the two reversing gears respectively; the two reversing gears are engaged with the corresponding rising rack and descending rack respectively; the two descending racks are connected with the supporting plate through brackets respectively and connected with the two brackets through sliding respectively; the two sides of the sliding supporting plate are fixedly connected with the two descending racks respectively; the positioning supporting plate is arranged in a symmetrical state with the sliding supporting plate and fixedly connected with the supporting plate through a bracket; one side of the sliding bracket is connected with the sliding supporting plate through sliding; and the other end is connected with the positioning supporting plate through sliding.

[0020] Further, the lower acceleration mechanism further comprises two sliding pins, two energy storage springs and two energy storage push rods, the two energy storage push rods are connected with the two ends of the positioning support plate through torsion springs respectively, the two sliding pins are connected with the upper end of the sliding support in a symmetrical state, the two sliding pins are further connected with the upper end of the sliding support plate in a sliding mode, the two energy storage springs are sleeved outside the two sliding pins respectively, the upper ends of the two energy storage springs are connected with the sliding support plate respectively, the lower ends of the two energy storage springs are connected with the sliding support respectively, the upper end of the sliding support plate is formed with two trapezoidal angles, the upper end of the sliding support is formed with a positioning flange, the middle part of the energy storage push rod is formed with a touch pressure stop angle, and the upper end of the energy storage push rod is formed with a touch pressure flange.

[0021] Compared with the prior art, the application has the beneficial effects that:

[0022] Firstly, the device realizes the accelerated operation of the moving platform upwardly through the winding mode of the two conical rollers, in this process, the moving speed of the moving platform is gradually accelerated, so that the triangular pyramid knife has faster kinetic energy.

[0023] Secondly, the movement of the moving platform also drives the downward movement of the material bag above, and the material bag generates an explosive downward acceleration in the movement process of the energy storage spring, so that the material bag can collide with the triangular pyramid knife moving upwardly at a high speed, and finally the material bag realizes bag opening.

[0024] Thirdly, the device realizes the vibration feeding through the vibration motor and the hopper, avoids the accumulation of materials in the hopper, and simultaneously the materials can be uniformly fed through the electromagnetic valve, so that the controllability of the materials for each processing is realized. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a 45° axonometric view of the embodiment;

[0026] Figure 2 is a 135° axonometric view of the embodiment;

[0027] Figure 3 is Figure 2 an enlarged schematic view of structure A in the embodiment;

[0028] Figure 4 is Figure 2 an enlarged schematic view of structure B in the embodiment;

[0029] Figure 5 is Figure 2 an enlarged schematic view of structure C in the embodiment;

[0030] Figure 6 is a perspective structure plan view of the driving mechanism and the acceleration bag breaking assembly in the embodiment;

[0031] Figure 7is a perspective structure exploded schematic view of the upper accelerating mechanism in the embodiment;

[0032] Figure 8 is Figure 7 is a structure enlarged schematic view at D in the embodiment;

[0033] Figure 9 is Figure 7 is a structure enlarged schematic view at F in the embodiment.

[0034] In the figure, the reference numbers are as follows: 1, guide rail; 2, limiting support; 3, limiting through hole; 4, bearing bracket; 5, traveling rack; 6, driving mechanism; 7, driving motor; 8, first bevel gear; 9, second bevel gear; 10, traveling gear; 11, bearing support plate; 12, sensor; 13, detector; 14, limiting slider; 15, limiting pin shaft; 16, accelerating and bag breaking assembly; 17, moving platform; 18, triangular pyramid knife; 19, hopper; 20, bearing platform; 21, vibration motor; 22, electromagnetic valve; 23, driving motor; 24, upper accelerating mechanism; 25, adapter box; 26, sliding rack; 27, sliding gear; 28, first limiting block; 29, first limiting pin; 30, positioning roller; 31, conical roller; 32, second limiting block; 33, second limiting pin; 34, third bevel gear; 35, fourth bevel gear; 36, synchronous gear; 37, adapter gear ring; 38, traction rope; 39, lower accelerating mechanism; 40, ascending rack; 41, reversing gear; 42, descending rack; 43, positioning bearing plate; 44, sliding bearing plate; 45, trapezoidal angle; 46, sliding support; 47, positioning flange; 48, sliding pin shaft; 49, energy storage spring; 50, energy storage push rod; 51, touch pressure flange; 52, touch pressure stop angle. DETAILED DESCRIPTION

[0035] In order to further understand the features, technical means and specific purposes and functions achieved by the present application, the present application is described in further detail below in combination with the drawings and specific embodiments.

[0036] Reference Figures 1 to 9 A high furnace front molten iron silicon increasing device, comprising two guide rails 1 and a plurality of limiting supports 2 arranged uniformly under the two guide rails 1, further comprising:

[0037] Two bearing brackets 4 are arranged on the side of the two guide rails 1 and connected with the plurality of limiting supports 2;

[0038] A traveling rack 5 is arranged at the upper end of one bearing bracket 4;

[0039] A plurality of drive mechanisms 6 are arranged at the upper ends of the two guide rails 1, and the drive mechanism 6 comprises a drive motor 7, a traveling gear 10, a supporting plate 11, a sensor 12 and a detector 13, the supporting plate 11 is arranged at the upper end of the two guide rails 1, the drive motor 7 is arranged at the upper end of the supporting plate 11, the traveling gear 10 is arranged at the upper end of the traveling rack 5 and is engaged with the traveling rack 5, the sensor 12 is arranged at the end of the supporting plate 11 away from the drive motor 7, and the detector 13 is arranged at the upper end of the other supporting frame 4 without the traveling rack 5, and the detector 13 is electrically connected with the sensor 12;

[0040] A plurality of acceleration bag breaking assemblies 16 are respectively connected with the supporting plate 11, and each comprises a moving platform 17, a triangular pyramid knife 18, a hopper 19, an upper acceleration mechanism 24, an electromagnetic valve 22 and a lower acceleration mechanism 39, the upper acceleration mechanism 24 is arranged above the supporting plate 11 and can accelerate the downward movement of the material bag, the moving platform 17 is arranged below the supporting plate 11, the hopper 19 is arranged above the moving platform 17 and is slidably connected with the moving platform 17 through a pad, the triangular pyramid knife 18 is arranged at the upper end of the hopper 19 through a support, the electromagnetic valve 22 is arranged at the lower end of the moving platform 17, the output end of the electromagnetic valve 22 is connected with the lower end of the hopper 19 through a hose, and the lower acceleration mechanism 39 is arranged at the upper end of the moving platform 17 and can accelerate the upward movement of the triangular pyramid knife 18 to pierce the material bag.

[0041] When the device is running, the plurality of limiting supports 2 play a supporting role, and the plurality of drive mechanisms 6 are evenly arranged at the upper ends of the plurality of guide rails 1 and can move along the guide rails 1, in the process, the drive motor 7 is started to drive the traveling gear 10 to rotate, the traveling gear 10 rotates to drive the supporting plate 11 connected with the drive motor 7 to move along the guide rail 1, when the detector 13 moves to the side of the corresponding sensor 12, the drive motor 7 stops running, then the lower acceleration mechanism 39 is started to drive the triangular pyramid knife 18 to move upward at high speed, at the same time, the lower acceleration mechanism 39 is started to drive the material bag to move downward, finally the triangular pyramid knife 18 pierces the lower end of the material bag upward. Then the material falls downward and falls into the hopper 19, at this time, the electromagnetic valve 22 controls the flow of the material falling downward through the hopper 19 to prevent the weight of the material to be processed each time from being different. Finally, the falling material reaches the storage barrel located on the production line, when the flow of the material is sufficient, the electromagnetic valve 22 is closed to control the weight of the material in the storage barrel.

[0042] In order to realize the movement of the supporting plate 11, the following features are specifically arranged:

[0043] The driving mechanism 6 further comprises a first bevel gear 8 and a second bevel gear 9, the first bevel gear 8 is keyed connected with the output end of the driving motor 7, the second bevel gear 9 is arranged at the lower end of the first bevel gear 8 and is in mesh with the first bevel gear 8, and the second bevel gear 9 is coaxially fixedly connected with the traveling gear 10. During the operation of the device, the driving motor 7 is started to drive the first bevel gear 8 to rotate, the first bevel gear 8 drives the second bevel gear 9 connected therewith to rotate, the second bevel gear 9 drives the traveling gear 10 connected therewith to rotate, and the traveling gear 10 drives the traveling rack 5 in mesh therewith to move, and then the supporting plate 11 moves.

[0044] In order to avoid the supporting plate 11 from moving in the moving process, the following features are specifically provided:

[0045] The driving mechanism 6 further comprises two limiting sliding blocks 14 and eight limiting pin shafts 15, two limiting through holes 3 are formed on the two limiting supports 2 respectively, the two limiting sliding blocks 14 are connected with the supporting plate 11 respectively, and the two limiting sliding blocks 14 are slidingly connected with the two guide rails 1 respectively. In order to improve the stability of the supporting plate 11 during movement, the supporting plate 11 is limited by the two limiting sliding blocks 14, so as to avoid the supporting plate 11 from moving in the moving process.

[0046] In order to realize the synchronous displacement of the moving platform 17 and the supporting plate 11, and also facilitate the rapid falling of the materials, the following features are specifically provided:

[0047] The accelerating bag breaking assembly 16 further comprises two vibration motors 21, eight limiting pin shafts 15 and two bearing platforms 20, the two vibration motors 21 are arranged in a symmetrical state at the upper end of the moving platform 17, the output ends of the two vibration motors 21 are connected with the lower end of the hopper 19, the two bearing platforms 20 are arranged in a symmetrical state at the two ends of the moving platform 17 respectively, the eight limiting pin shafts 15 are grouped every four, each group of limiting pin shafts 15 is fixedly connected with the upper end of the two bearing platforms 20 respectively, and each group of limiting pin shafts 15 is slidingly connected with the two limiting through holes 3 on the corresponding limiting support 2 respectively, and each group of limiting pin shafts 15 is fixedly connected with the supporting plate 11 after passing through the corresponding limiting through hole 3. During the operation of the device, the movement of the supporting plate 11 drives the two bearing platforms 20 to move through the eight limiting pin shafts 15, the movement of the two bearing platforms 20 drives the moving platform 17 connected therewith to move, and the movement of the moving platform 17 drives other parts connected therewith to move, in this process, the upper accelerating mechanism 24 and the lower accelerating mechanism 39 move to the upper side of the corresponding storage barrel, in order to facilitate the rapid falling of the materials, the two vibration motors 21 are started to drive the hopper 19 connected therewith to vibrate, and the materials in the hopper 19 continuously fall in the vibration process.

[0048] In order to realize the variable acceleration displacement of the moving platform 17 and the triangular pyramid knife 18, the following features are specifically provided:

[0049] The accelerating bag breaking assembly 16 further comprises a driving motor 23 arranged above the supporting plate 11 and connected with the supporting plate 11 through a motor support, and the upper accelerating mechanism 24 comprises a transfer gear ring 37, two conical rollers 31, two second limiting sliding blocks 14, four second limiting pins 33, two third bevel gears 34, two fourth bevel gears 35 and two synchronous gears 36, the two conical rollers 31 are arranged above the supporting plate 11 through supports respectively, and one of the conical rollers 31 is further connected with the output end of the driving motor 23, the four second limiting pins 33 are arranged in two groups respectively, each group of the second limiting pins 33 is arranged below one of the conical rollers 31, the two second limiting sliding blocks 14 are connected with one group of the second limiting pins 33 respectively, the two third bevel gears 34 are connected with one end of the two conical rollers 31 away from the driving motor 23 respectively, the two fourth bevel gears 35 are arranged at the lower ends of the two third bevel gears 34 and engaged with the two third bevel gears 34 respectively, the two synchronous gears 36 are arranged at the two fourth bevel gears 35 respectively, the transfer gear ring 37 is arranged between the two synchronous gears 36 and engaged with the two synchronous gears 36 simultaneously, and the transfer gear ring 37 is rotatably connected with the upper end of the supporting plate 11. When the device is running, the driving motor 23 is started to drive the conical roller 31 connected therewith to rotate, the conical roller 31 rotates to drive the third bevel gear 34 connected therewith to rotate, the third bevel gear 34 rotates to drive the fourth bevel gear 35 engaged therewith to rotate, the fourth bevel gear 35 rotates to drive the synchronous gear 36 connected therewith to rotate, the synchronous gear 36 rotates to drive the transfer gear ring 37 engaged therewith to rotate, and the transfer gear ring 37 rotates to drive the other synchronous gear 36 engaged therewith to rotate. In this process, the transfer gear ring 37 is an idle gear, and the purpose is to make the two synchronous gears 36 rotate in the same direction. As known from the foregoing, the rotating speed and direction of the two conical rollers 31 are the same at this time, and the moving platform 17 can realize variable acceleration displacement of the triangular pyramid knife 18 during movement. The specific variable acceleration process is explained below.

[0050] In order to facilitate the upward acceleration of the triangular pyramid knife 18 and the puncture of the material bag, the following features are specifically provided:

[0051] The upper acceleration mechanism 24 further comprises two adapter boxes 25, two sliding racks 26, two traction ropes 38, four sliding gears 27, two first limiting blocks 28, four first limiting pins 29, two positioning rollers 30, two positioning supports and two conical rollers 31. The two adapter boxes 25 are symmetrically arranged at the lower ends of the two bearing platforms 20 and are connected with the moving platform 17. The four sliding gears 27 are respectively arranged at the two ends of the two adapter boxes 25 and are connected through pin shafts. The four sliding gears 27 are respectively engaged with the two sliding racks 26. The four first limiting pins 29 are respectively arranged in the two adapter boxes 25. The two first limiting sliding blocks 14 are respectively connected with the two first limiting pins 29 in the two adapter boxes 25 in a sliding manner. The two positioning rollers 30 are respectively arranged at the upper portions of the two bearing platforms 20 through supports. One ends of the two traction ropes 38 are respectively connected with the small ends of the two conical rollers 31. The other ends are connected with the second limiting blocks 32 and the first limiting blocks 28 in a sliding manner. The middle portions of the two traction ropes 38 are abutted against the positioning rollers 30. When the device is running, the two conical rollers 31 rotate and drive the first limiting blocks 28 below to move upward through the traction ropes 38. In this process, the traction ropes 38 are wound along the small end direction of the conical rollers 31 to the large end of the conical rollers 31. It can be known that the linear velocity is equal to the product of the angular velocity and the rotating diameter. The rotating speed of the conical rollers 31 is unchanged, but the diameter of the traction ropes 38 gradually increases in the winding process. At this time, the moving speed of the traction ropes 38 also increases. The upward movement of the first limiting blocks 28 drives the adapter boxes 25 to move upward through the first limiting pins 29. The upward movement of the adapter boxes 25 drives the moving platform 17 connected therewith to move upward. As known from the foregoing, the triangular conical knife 18 is accelerated upward to pierce the material bag in this process. In this process, the traction ropes 38 can be limited by the corresponding first limiting blocks 28 and second limiting blocks 32 below to avoid dislocation of the traction ropes 38 due to horizontal movement in the winding process. The positioning rollers 30 can limit the middle portions of the traction ropes 38 to avoid the traction ropes 38 being attached to the corresponding bearing platforms 20 during movement.

[0052] In order to facilitate the downward displacement of the material bag and the collision with the triangular conical knife 18, the following features are specifically provided:

[0053] The lower acceleration mechanism 39 comprises a positioning support plate 43, a sliding support plate 44, a sliding support 46, two upward racks 40, two reversing gears 41 and two downward racks 42, the two upward racks 40 are fixedly connected with the two sides of the moving platform 17 respectively, the two reversing gears 41 are arranged above the support plate 11 through supports respectively, the two downward racks 42 are arranged beside the two reversing gears 41 respectively, the two reversing gears 41 can be engaged with the corresponding upward rack 40 and downward rack 42 respectively, the two downward racks 42 are connected with the support plate 11 through supports respectively, and the two downward racks 42 are slidingly connected with the two supports respectively, the two sides of the sliding support plate 44 are fixedly connected with the two downward racks 42 respectively, the positioning support plate 43 is arranged in a symmetrical state with the sliding support plate 44 and is fixedly connected with the support plate 11 through a support, one side of the sliding support 46 is slidingly connected with the sliding support plate 44, and the other end is slidingly connected with the positioning support plate 43. During the operation of the device, the upward movement of the moving platform 17 drives the two upward racks 40 to move upward, the upward movement of the two upward racks 40 drives the reversing gears 41 engaged with the two upward racks 40 to rotate, the rotation of the reversing gears 41 drives the downward racks 42 engaged with the reversing gears 41 to rotate, the downward movement of the downward racks 42 drives the sliding support 46 connected with the downward racks 42 to move, and the downward movement of the sliding support 46 drives the material bag connected with the sliding support 46 to move downward. At this time, it can be known that the downward movement of the material bag is accelerated downward displacement, which is convenient for the material bag to move downward at a high speed and collide with the triangular pyramid knife 18.

[0054] In order to realize the variable acceleration downward movement of the material bag, the following features are specifically provided:

[0055] The lower acceleration mechanism 39 further comprises two sliding pins 48, two energy storage springs 49 and two energy storage push rods 50, the two energy storage push rods 50 are connected to the two ends of the positioning support plate 43 through torsional springs respectively, the two sliding pins 48 are connected to the upper end of the sliding support 46 in a symmetrical state, the two sliding pins 48 are further connected to the upper end of the sliding support plate 44 in a sliding manner, the two energy storage springs 49 are respectively sleeved outside the two sliding pins 48, the upper ends of the two energy storage springs 49 are connected to the sliding support plate 44 respectively, the lower ends of the two energy storage springs 49 are connected to the sliding support 46 respectively, the upper end of the sliding support plate 44 is formed with two trapezoidal corners 45, the upper end of the sliding support 46 is formed with a positioning flange 47, the middle part of the energy storage push rod 50 is formed by a touch pressure stop corner 52, and the upper end of the energy storage push rod 50 is formed by a touch pressure flange 51. When the sliding support plate 44 drives the sliding support 46 to move downward during the operation of the device, the positioning flange 47 at the upper end of the sliding support 46 will first abut against the touch pressure stop corner 52, at this time, the energy storage push rod 50 will intercept the sliding support 46, and after the sliding support 46 is intercepted, it will be temporarily stationary, in this process, the sliding support plate 44 will continue to move downward, and the energy storage spring 49 will be compressed, preparing for the speed mutation of the sliding support 46, until the trapezoidal corner 45 at the upper end of the sliding support plate 44 abuts against the touch pressure flange 51 at the upper end of the energy storage push rod 50, the energy storage push rod 50 is offset to make the touch pressure stop corner 52 separate from the positioning flange 47, and the energy storage spring 49 will push the sliding support 46 downward at the moment of separation and make explosive displacement, and finally the sliding support 46 moves downward and brings the material bag to accelerate and impact on the triangular pyramid knife 18.

[0056] The working principle of the device is that the plurality of limiting supports 2 support, the plurality of driving mechanisms 6 are uniformly arrayed at the upper end of the plurality of guide rails 1 and can move along the guide rails 1, in the process, the driving motor 7 is started to drive the traveling gear 10 to rotate, the traveling gear 10 rotates to drive the support plate 11 connected with the driving motor 7 to move along the guide rail 1, when the detector 13 moves to the side of the corresponding sensor 12, the driving motor 7 stops running.

[0057] Subsequently, the active motor 23 starts to drive the conical roller 31 to rotate, and after the two conical rollers 31 rotate simultaneously, the lower adapter box 25 is driven to move upward by the traction rope 38, in this process, the traction rope 38 is wound along the small end of the conical roller 31 to the large end of the conical roller 31, and it is known that the linear velocity is equal to the product of the angular velocity and the rotating diameter, the rotating speed of the conical roller 31 is unchanged, but the diameter of the traction rope 38 during winding gradually increases, at this time, the moving speed of the traction rope 38 also increases, the first limiting block 28 moves upward to drive the adapter box 25 to move upward through the first limiting pin 29, and the adapter box 25 moves upward to drive the moving platform 17 connected thereto to move upward, as known from the foregoing, at this time, the triangular conical knife 18 accelerates to puncture the material bag upward.

[0058] At the same time that the moving platform 17 moves upward, the sliding support 46 moves downward to drive the material bag connected thereto to move downward. In this process, the sliding support plate 44 continuously moves downward, and the energy storage spring 49 is compressed to prepare for the speed mutation of the sliding support 46, until the trapezoidal angle 45 at the upper end of the sliding support plate 44 abuts against the touch pressure flange 51 at the upper end of the energy storage push rod 50, the energy storage push rod 50 is offset to make the touch pressure block angle 52 and the positioning flange 47 separate, the energy storage spring 49 pushes the sliding support 46 downward at the moment of separation, and finally the sliding support 46 moves downward to drive the material bag to accelerate and impact on the triangular conical knife 18.

[0059] After the material bag is punctured, the material falls downward and falls into the hopper 19, at this time, the electromagnetic valve 22 controls the flow of the material falling downward after the hopper 19, to prevent the weight of the material to be processed from varying each time. Finally, the falling material reaches the storage barrel on the production line, when the flow of the material is sufficient, the electromagnetic valve 22 is closed to control the weight of the material in the storage barrel.

[0060] The above embodiments only express one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the patent of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the scope of protection of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A device for increasing silicon content in molten iron at the front of a blast furnace, comprising two guide rails (1) and a plurality of limiting brackets (2) uniformly arranged below the two guide rails (1), characterized in that, Also includes: Two support brackets (4) are respectively set on the side of the two guide rails (1) and connected to several limiting brackets (2); A traveling rack (5) is located at the upper end of a support frame (4); Several drive mechanisms (6) are set at the upper end of two guide rails (1). Each drive mechanism (6) includes a drive motor (7), a traveling gear (10), a support plate (11), a sensor (12), and a detector (13). The support plate (11) is set at the upper end of the two guide rails (1). The drive motor (7) is set at the upper end of the support plate (11). The traveling gear (10) is set at the upper end of the traveling rack (5) and meshes with the traveling rack (5). The sensor (12) is set at the end of the support plate (11) away from the drive motor (7). The detector (13) is set at the upper end of another support frame (4) without the traveling rack (5). The detector (13) is electrically connected to the sensor (12). Several bag-breaking acceleration components (16) are connected to the support plate (11) respectively, including a moving platform (17), a triangular cone blade (18), a hopper (19), an upper acceleration mechanism (24), an electromagnetic valve (22) and a lower acceleration mechanism (39). The upper acceleration mechanism (24) is located above the support plate (11) and can drive the material bag to move downward at an accelerated speed. The moving platform (17) is located below the support plate (11). The hopper (19) is located above the moving platform (17) and is slidably connected to the moving platform (17) through a pad. The triangular cone blade (18) is located at the upper end of the hopper (19) through a bracket. The electromagnetic valve (22) is located at the lower end of the moving platform (17). The output end of the electromagnetic valve (22) is connected to the lower end of the hopper (19) through a hose. The lower acceleration mechanism (39) is located at the upper end of the moving platform (17) and can drive the triangular cone blade (18) to accelerate upward and pierce the material bag. The accelerated bag-breaking assembly (16) also includes an active motor (23), which is located above the support plate (11) and connected to the support plate (11) via a motor frame. The upper acceleration mechanism (24) includes a transition gear ring (37), two frustum rollers (31), two second limit sliders (14), four second limit pins (33), two third bevel teeth (34), two fourth bevel teeth (35), and two synchronous gears (36). The two frustum rollers (31) are respectively located above the support plate (11) via brackets, and one frustum roller (31) is also keyed to the output end of the active motor (23). The four second limit pins (33) are arranged in pairs, and each pair of second limit pins... Pins (33) are respectively set below the two truncated rollers (31), the two second limit sliders (14) are respectively slidably connected to a set of second limit pins (33), the two third bevel teeth (34) are respectively keyed to the ends of the two truncated rollers (31) away from the active motor (23), the two fourth bevel teeth (35) are respectively set at the lower ends of the two third bevel teeth (34) and mesh with the two third bevel teeth (34), the two synchronous gears (36) are respectively set at the keyed ends of the two fourth bevel teeth (35), the adapter gear ring (37) is set between the two synchronous gears (36) and meshes with the two synchronous gears (36) at the same time, and the adapter gear ring (37) is rotatably connected to the upper end of the support plate (11).

2. The blast furnace front hot metal silicon enhancement device according to claim 1, characterized in that, The drive mechanism (6) also includes a first bevel tooth (8) and a second bevel tooth (9). The first bevel tooth (8) is keyed to the output end of the drive motor (7). The second bevel tooth (9) is located at the lower end of the first bevel tooth (8) and meshes with the first bevel tooth (8). The second bevel tooth (9) is coaxially fixed to the travel gear (10).

3. The blast furnace front hot metal silicon enhancement device according to claim 1, characterized in that, The drive mechanism (6) also includes two limit sliders (14) and eight limit pins (15). Two limit through holes (3) are formed on the two limit brackets (2). The two limit sliders (14) are connected to the support plate (11) respectively, and the two limit sliders (14) are slidably connected to the two guide rails (1) respectively.

4. The blast furnace front hot metal silicon enhancement device according to claim 3, characterized in that, The accelerated bag breaking assembly (16) also includes two vibration motors (21), eight limit pins (15), and two support platforms (20). The two vibration motors (21) are symmetrically arranged at the upper end of the moving platform (17), and the output ends of the two vibration motors (21) are connected to the lower end of the hopper (19). The two support platforms (20) are symmetrically arranged at both ends of the moving platform (17). The eight limit pins (15) are arranged in groups of four. Each group of limit pins (15) is fixedly connected to the upper end of the two support platforms (20), and each group of limit pins (15) is slidably connected to the two limit through holes (3) on the corresponding limit bracket (2). After passing through the corresponding limit through hole (3), each group of limit pins (15) is fixedly connected to the support plate (11).

5. The blast furnace front hot metal silicon enhancement device according to claim 1, characterized in that, The upper acceleration mechanism (24) also includes two transfer boxes (25), two sliding racks (26), two traction ropes (38), four sliding gears (27), two first limit blocks (28), four first limit pins (29), two positioning rollers (30), two positioning supports, and two frustum rollers (31). The two transfer boxes (25) are symmetrically arranged at the lower ends of the two bearing platforms (20) and connected to the moving platform (17). The four sliding gears (27) are respectively arranged at both ends of the two transfer boxes (25) and connected by pins. The four sliding gears (27) are respectively connected to the two... The sliding rack (26) meshes with each other, and four first limiting pins (29) are respectively set inside the two transfer boxes (25). Two first limiting sliders (28) are respectively slidably connected to the two first limiting pins (29) inside the two transfer boxes (25). Two positioning rollers (30) are respectively set on the upper part of the two bearing platforms (20) through supports. One end of the two traction ropes (38) is respectively connected to the small end of the two conical rollers (31), and the other end is slidably connected to the second limiting block (32) and the first limiting block (28). The middle part of the two traction ropes (38) abuts against the back of the positioning rollers (30).

6. The blast furnace front hot metal silicon enhancement device according to claim 1, characterized in that, The lower acceleration mechanism (39) includes a positioning support plate (43), a sliding support plate (44), a sliding bracket (46), two rising racks (40), two reversing gears (41), and two descending racks (42). The two rising racks (40) are fixedly connected to both sides of the moving platform (17). The two reversing gears (41) are respectively mounted above the support plate (11) via brackets. The two descending racks (42) are respectively mounted beside the two reversing gears (41). The two reversing gears (41) can respectively engage with the corresponding rising racks (44, 45, and 46). 0) meshes with the descending rack (42), the two descending racks (42) are connected to the support plate (11) through the bracket respectively, and the two descending racks (42) are slidably connected to the two brackets respectively. The two sides of the sliding support plate (44) are fixedly connected to the two descending racks (42) respectively. The positioning support plate (43) is set symmetrically to the sliding support plate (44) and is fixedly connected to the support plate (11) through the bracket. One side of the sliding bracket (46) is slidably connected to the sliding support plate (44), and the other end is slidably connected to the positioning support plate (43).

7. A blast furnace front-end hot metal silicon enhancement device according to claim 6, characterized in that, The lower acceleration mechanism (39) also includes two sliding pins (48), two energy storage springs (49), and two energy storage push rods (50). The two energy storage push rods (50) are respectively connected to both ends of the positioning support plate (43) through torsion springs. The two sliding pins (48) are symmetrically connected to the upper end of the sliding bracket (46). The two sliding pins (48) are also slidably connected to the upper end of the sliding support plate (44). The two energy storage springs (49) are respectively connected to the upper end of the positioning support plate (43). The two energy storage springs (49) are respectively connected to the sliding support plate (44) at their upper ends and to the sliding bracket (46) at their lower ends. The upper end of the sliding support plate (44) is formed with two trapezoidal angles (45), the upper end of the sliding bracket (46) is formed with a positioning flange (47), the middle part of the energy storage push rod (50) is formed with a pressing stop angle (52), and the upper end is formed with a pressing flange (51).

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