Iron-making raw material conveying device

Abstract

The invention relates to the technical field of conveying devices, and particularly discloses an ironmaking raw material conveying device which comprises a conveying table, a conveying belt, a screening mechanism and a quantitative subpackaging mechanism, conveying rollers are arranged on the conveying table, the tail end of the conveying belt is located above the conveying table, the conveying belt is used for transferring materials to the conveying table, and a plurality of partition plates are arranged on the conveying table; the multiple partition plates form multiple channels on the conveying table, the screening mechanism is used for feeding materials into the different channels according to the sizes, the quantitative subpackaging mechanism comprises a mounting base and a transfer assembly, the mounting base is arranged on the conveying table, and the multiple partition plates extend to the mounting base, so that the multiple channels extend to the mounting base; a transfer assembly is arranged at the tail end of each channel; according to the iron-making raw material conveying device, ore particles are screened according to different particle sizes, then the number of needed ores with different sizes is calculated according to the volume of the container, and the required number of ores are transferred into the container through the transfer assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying devices, and in particular to an ironmaking raw material conveying device. Background Art

[0002] Blast furnace ironmaking is a continuous and complex process, and the chemical reaction in the furnace needs to be carried out under relatively stable conditions. Therefore, it is necessary to accurately control the amount of iron ore, coke and flux added according to the quality requirements of the required pig iron. Since the dosage of coke and flux is easy to control, the key to controlling the charge ratio is to control the amount of iron ore added.

[0003] In the prior art, there are several common methods for quantitative charging of iron ore raw materials: using electronic scales for weighing and charging, using volumetric quantitative charging devices, and using belt scales for quantitative charging. Electronic scales are a type of high-precision weighing equipment, but this type of quantitative charging method is difficult to apply to large-scale ironmaking; volumetric quantitative charging is based on the principle that the weight of a certain volume of ore is relatively fixed. Quantitative charging is achieved by controlling the volume of the ore; belt scales are a type of weighing equipment installed on a belt conveyor. It is mainly composed of a scale frame, a weighing sensor, a speed sensor, and an instrument. The cost of quantitative weighing equipment using this method is relatively high. Therefore, in the related art, a volumetric quantitative charging device is usually used to quantitatively pack iron ore.

[0004] A Chinese patent with authorization announcement number CN215974048U discloses a high-precision quantitative feeder, which includes a base, a hanging structure and a feed hopper. The base is installed at the bottom of the machine body, and two groups of rear fixing plates are provided on the rear side of the base, and two groups of front fixing plates are provided on the front side of the base, and connecting plates are installed on the outer sides of the rear fixing plates and the front fixing plates through multiple groups of fastening bolts, and the hanging structure is installed on the upper end of the connecting plate; the feed hopper is installed at the upper rear of the machine body, and an upper fixing plate is provided at the bottom of the feed hopper, and fixing frames are provided on both the front and rear sides of the lower end face of the upper fixing plate.

[0005] The above patent indirectly changes the exciting force of the vibration motor by controlling the frequency converter, thereby facilitating precise control of the feeding amount of the equipment and ensuring uniform and stable material flow.

[0006] Since newly mined iron ore varies in size, even if the above patent can ensure a uniform and stable material flow, when the container is about to be filled with iron ore, the remaining volume will be difficult to accommodate large particles of ore, and the container will be overfilled or underfilled. Summary of the invention

[0007] The present invention provides an ironmaking raw material conveying device, aiming to solve the problem of overfilling or underfilling of a container in the related art.

[0008] The ironmaking raw material conveying device of the present invention comprises: a conveying platform, a conveyor belt, a screening mechanism and a quantitative packaging mechanism; The conveying platform is provided with conveying rollers; The end of the conveyor belt is located above the conveyor platform, and the conveyor belt is used to transfer materials to the conveyor platform; The conveying platform is provided with a plurality of partitions, and the plurality of partitions form a plurality of channels on the conveying platform, and the screening mechanism is used to send the materials into different channels according to their sizes; The quantitative filling mechanism includes a mounting seat and a transfer component. The mounting seat is arranged on the conveying platform. A plurality of partitions extend to the mounting seat, so that a plurality of channels extend to the mounting seat. The transfer component is arranged at the end of each channel, and the transfer component can transport ore particles in a quantitative manner.

[0009] Beneficial effects: Ore particles of different sizes are separated by the screening mechanism and enter different channels respectively. The ore particles in different channels are transported to the container by the transfer component. When the container is about to be full, the remaining space in the container is calculated, and the required number of ore particles of different sizes are transported to the container as needed according to the remaining space of the container, so that the container is just filled.

[0010] Preferably, the screening mechanism comprises a plurality of sieve plates, the conveyor belt is distributed obliquely, the plurality of sieve plates are all distributed obliquely on the conveyor belt, and the inclination directions of two adjacent sieve plates are opposite.

[0011] Preferably, the conveying platform is further provided with a plurality of folding plates, wherein the folding plates are folding line plates, and the plurality of folding plates are distributed at intervals, and folding spaces are formed between adjacent folding plates, and each folding space corresponds to one of the channels.

[0012] The effect is that after screening, ore particles of different particle sizes fall into different gathering spaces, are gathered in the gathering spaces and move to corresponding channels, preventing the ore particles from entering the wrong channel and causing inaccurate quantification.

[0013] Preferably, the transfer assembly includes a first driving member, a driving shaft, a rotating sleeve and blades. The driving shaft is rotatably engaged on the conveying platform. The first driving member is arranged in the conveying platform, and is used to drive the driving shaft to rotate. The rotating sleeve is fixedly connected to the driving shaft. The plurality of blades are distributed at intervals along the circumference of the rotating sleeve, and receiving grooves are formed between adjacent blades. Each of the receiving grooves can accommodate one ore particle.

[0014] The effect is that the drive shaft drives the blades to rotate through the rotating sleeve, so that the blades can drive the ore particles in the containing tank to move. When the drive shaft stops rotating, the blades can also block the ore particles to prevent excess ore particles from entering the container.

[0015] Preferably, each of the channels is provided with a partition plate, which divides the channel into a first branch and a second branch. The transfer component is located in the first branch, and a baffle is slidably fitted on the second branch, and the baffle can close the second branch.

[0016] The effect is that when the volume of the container is large, the ore particles in each channel can be directly transferred to the container through the corresponding second branch. When the container is about to be full, the second branch is closed by the baffle, thereby improving the transportation efficiency.

[0017] Preferably, a discharge hopper is provided at the end of the channel, and the discharge hopper is a funnel-shaped structure. Each of the discharge hoppers corresponds to one of the channels, and the discharge hopper is flush with the corresponding end of the channel.

[0018] The effect is that the discharge hopper can prevent the ore particles from splashing when falling from various channels to the container, resulting in the ore particles failing to enter the container and affecting the quantitative packaging.

[0019] Preferably, a loading platform is also provided at the bottom of the mounting seat, and the loading platform is located below the discharge hopper.

[0020] Preferably, a pressure sensor is provided on the loading platform.

[0021] By adopting the above technical solution, the beneficial effects of the present invention are: According to the ironmaking raw material conveying device of the present invention, ore particles of different particle sizes are separated by a screening mechanism and respectively enter different channels, and the ore particles in different channels are transported to a container by a transfer component. When the container is about to be full, the remaining space in the container is calculated, and the required different quantities of ore particles of different particle sizes are transported to the container as needed according to the remaining space in the container, so that the container is just filled, thereby realizing accurate quantitative packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic structural diagram of an ironmaking raw material conveying device according to an embodiment of the present invention.

[0023] Figure 2 It is a schematic structural diagram of a conveyor belt and a screening mechanism according to an embodiment of the present invention.

[0024] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0025] Figure 4 It is a schematic diagram of the structure of the quantitative filling mechanism of an embodiment of the present invention.

[0026] Figure 5 2 is a schematic diagram of the mounting base structure of an embodiment of the present invention.

[0027] Figure 6 It is a schematic diagram of the structure of the transfer component of an embodiment of the present invention.

[0028] Figure 7 Schematic diagram of the baffle structure of an embodiment of the present invention.

[0029] Reference numerals: 1. Conveying platform; 2. Conveying roller; 3. Conveying belt; 4. Screening mechanism; 41. First screen plate; 42. Second screen plate; 43. Third screen plate; 44. Fourth screen plate; 45. First limit plate; 46. Second limit plate; 5. Partition plate; 6. Folding plate; 71. Mounting seat; 711. Arc groove; 72. Transfer assembly; 721. Drive shaft; 722. Rotating sleeve; 723. Blade; 724. First drive member; 725. First gear; 8. Partition plate; 9. Baffle; 91. Turntable; 92. Arc plate; 93. Second drive member; 94. Second gear; 10. Discharging hopper; 11. Loading platform; 12. Pressure sensor; 101, first channel; 102, second channel; 103, third channel; 104, fourth channel. DETAILED DESCRIPTION

[0030] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0031] like Figures 1 to 7 As shown, the ironmaking raw material conveying device of the present invention comprises: a conveying platform 1, a conveyor belt 3, a screening mechanism 4 and a quantitative packaging mechanism.

[0032] Specifically, Figure 1 As shown, a conveying roller 2 is provided on the conveying platform 1 , and a driving motor is provided inside the conveying platform 1 . The driving motor is used to drive the conveying roller 2 to rotate, and the conveying roller 2 is used to transfer the ore particles on the conveying platform 1 .

[0033] like Figures 1 to 3As shown, the conveyor belt 3 is tilted, the rear end of the conveyor belt 3 is higher than the front end thereof, and the rear end of the conveyor belt 3 is located above the front end of the conveying platform 1. The screening mechanism 4 is arranged on the conveyor belt 3, and the screening mechanism 4 includes a first screen plate 41, a second screen plate 42, a third screen plate 43 and a fourth screen plate 44. The first screen plate 41, the second screen plate 42, the third screen plate 43 and the fourth screen plate 44 are tilted and distributed on the conveyor belt 3 in sequence, and the tilt directions of two adjacent screen plates are opposite. The middle section of the third screen plate 43 is provided with a first limiting plate 45, and the middle section of the fourth screen plate 44 is provided with a second limiting plate 46. The first screen plate 41, the second screen plate 42, the third screen plate 43 and the fourth screen plate 44 are respectively provided with sieve holes of different sizes, wherein the sieve holes on the first screen plate 41 are the largest, and the sieve holes on the fourth screen plate 44 are the smallest. The ore particles fall onto the rear end of the conveyor belt 3 and roll obliquely downward along the conveyor belt 3. The ore particles first stop against the first sieve plate 41. The largest particles of ore remain on the first sieve plate 41 and move along the first sieve plate 41 to the lowest point of the first sieve plate 41. The remaining ore passes through the first sieve plate 41 and moves to the second sieve plate 42. The larger particles of ore remain on the second sieve plate 42 and move along the second sieve plate 42 to the lowest point of the second sieve plate 42. The remaining ore passes through the second sieve plate 42 and moves to the third sieve plate 43. The smaller particles of ore remain on the third sieve plate 43 and move along the third sieve plate 43 to the first limit plate 45. The remaining ore passes through the third sieve plate 43 and moves to the fourth sieve plate 44. The smallest particles of ore remain on the fourth sieve plate 44 and move along the fourth sieve plate 44 to the second limit plate 46. The remaining fine impurities such as sand and soil roll down along the conveyor belt 3 until they fall from the front end of the conveyor belt 3.

[0034] like Figure 1 As shown, a plurality of partitions 5 are provided on the conveying platform 1, and a first channel 101, a second channel 102, a third channel 103 and a fourth channel 104 are formed between the plurality of partitions 5, respectively. A plurality of folding plates 6 are also provided at the front end of the conveying platform 1, and the folding plates 6 are folding line plates, and folding spaces are formed between adjacent folding plates 6. The folding spaces are funnel-shaped, and the width of the front end is greater than the width of the rear end. There are four folding spaces, which correspond to the first channel 101, the second channel 102, the third channel 103 and the fourth channel 104, respectively. The conveyor belt 3 can drive the screening mechanism 4 to move, so that the first screen plate 41, the second screen plate 42, the third screen plate 43 and the fourth screen plate 44 respectively push the large-particle ore, the larger-particle ore, the smaller-particle ore and the smallest-particle ore from the front end of the conveyor belt 3 to the rear end of the conveyor belt 3. After the ore passes the rear end of the conveyor belt 3, it will fall on the conveying platform 1 and enter the corresponding gathering space. Driven by the conveying roller 2, ores of different sizes enter the corresponding channels from the gathering space, among which large-particle ore enters the first channel 101, larger-particle ore enters the second channel 102, smaller-particle ore enters the third channel 103, and the smallest-particle ore enters the fourth channel 104.

[0035] like Figure 1 , Figures 4 to 7 As shown, the quantitative filling mechanism includes a mounting seat 71 and a transfer assembly 72. The mounting seat 71 is fixedly connected to the side wall of the conveyor platform 1. The top surface of the mounting seat 71 is a slope structure, and its end close to the conveyor platform 1 is higher than its end away from the conveyor platform 1, and the top of the mounting seat 71 is flush with the conveyor platform 1. Multiple partitions 5 extend to the top surface of the mounting seat 71, so that the first channel 101, the second channel 102, the third channel 103 and the fourth channel 104 extend to the mounting seat 71. The ends of the first channel 101, the second channel 102, the third channel 103 and the fourth channel 104 are all provided with partition plates 8, and the partition plates 8 separate the corresponding channels into a first branch and a second branch.

[0036] The end of the first branch is provided with an arc groove 711, and a transfer assembly 72 is provided in the arc groove 711. The transfer assembly 72 includes a first driving member 724, a driving shaft 721, a rotating sleeve 722 and blades 723. The driving shaft 721 is rotatably matched on the mounting seat 71. The first driving member 724 is fixedly connected in the mounting seat 71. The first driving member 724 is a motor. The driving shaft 721 passes through the mounting seat 71 and extends into the mounting seat 71. The output end of the first driving member 724 is provided with a first gear 725, which is meshed with the driving shaft 721. The first driving member 724 drives the driving shaft 721 to rotate through the first gear 725. The rotating sleeve 722 is fixedly connected to the driving shaft 721, and a plurality of blades 723 are fixedly connected to the side wall of the rotating sleeve 722. The plurality of blades 723 are evenly spaced along the circumference of the rotating sleeve 722. A receiving groove is formed between adjacent blades 723, and each receiving groove can accommodate a piece of ore. When the first driving member 724 drives the driving shaft 721 to rotate, the rotating sleeve 722 rotates synchronously with the driving shaft 721 and drives the blades 723 to rotate. The rotation of the blades 723 can drive the ore in the containing tank to rotate, thereby realizing the transfer of the ore in the first branch to the discharge hopper 10 one by one.

[0037] A baffle 9 is provided at the end of the second branch, and the baffle 9 includes a turntable 91 and an arc plate 92. The turntable 91 is rotatably fitted in the mounting seat 71. A plurality of grooves evenly spaced along its circumference are provided on the side wall of the turntable 91. The arc plate 92 is fixedly connected to the turntable 91, and the arc plate 92 is slidably fitted with the mounting seat 71. The arc plate 92 can slide relative to the mounting seat 71 along its circumference, and the arc plate 92 can extend out or be retracted into the mounting seat 71. The baffle 9 is slidably fitted in the mounting seat 71. A second driving member 93 is provided in the mounting seat 71. The second driving member 93 is a motor. A second gear 94 is provided at the output end of the second driving member 93. The second gear 94 is meshed with the turntable 91. The second driving member 93 drives the turntable 91 to rotate through the second gear 94, thereby causing the arc plate 92 to move relative to the mounting seat 71, thereby controlling the arc plate 92 to extend out or be retracted into the mounting seat 71, thereby controlling the opening and closing of the second branch.

[0038] like Figure 4 and Figure 5 As shown, the ends of the first channel 101, the second channel 102, the third channel 103 and the fourth channel 104 are all provided with a discharge hopper 10. The discharge hopper 10 is a funnel-shaped structure, and the side wall of the discharge hopper 10 is flush with the corresponding first channel 101 or the second channel 102 or the third channel 103 or the fourth channel 104.

[0039] like Figure 4 As shown, a loading platform 11 is provided at the bottom of the mounting base 71, and the loading platform 11 is located below the discharge hopper 10. A container can be placed on the loading platform 11, and the container is used to fill ore. A pressure sensor 12 is also provided on the loading platform 11, and the pressure sensor 12 can measure the weight of the container, and then the mass of the material in the container can be calculated.

[0040] According to the ironmaking raw material conveying device of the embodiment of the present invention, the ore particles are poured onto the rear end of the conveyor belt 3 and roll obliquely downward along the conveyor belt 3. The ore particles first abut against the first screen plate 41, wherein the largest particles of ore remain on the first screen plate 41 and move along the first screen plate 41 to the lowest point of the first screen plate 41, and the remaining ore passes through the first screen plate 41 and moves to the second screen plate 42, and the larger particles of ore remain on the second screen plate 42 and move along the second screen plate 42 to the second screen plate 4 2, the remaining ore passes through the second sieve plate 42 and moves to the third sieve plate 43, the smaller particles of ore remain on the third sieve plate 43 and move along the third sieve plate 43 to the first limit plate 45, the remaining ore passes through the third sieve plate 43 and moves to the fourth sieve plate 44, the smallest particles of ore remain on the fourth sieve plate 44 and move along the fourth sieve plate 44 to the second limit plate 46, and the remaining fine impurities such as sand and soil roll down along the conveyor belt 3 until they fall from the front end of the conveyor belt 3. The conveying roller 2 drives the ore on the conveying platform 1 to move from front to back, and the largest particles of ore, larger particles of ore, smaller particles of ore and the smallest particles of ore enter different gathering spaces respectively, and after being gathered, they enter the first channel 101, the second channel 102, the third channel 103 and the fourth channel 104 respectively. When the ore moves to the end of the corresponding channel, a part of the ore enters the second branch and slides along the second branch into the discharge hopper 10, and falls from the discharge hopper 10 into the container of the loading platform 11 under the action of gravity. When the container is about to be filled, the data measured by the pressure sensor 12 is used to calculate the size of the remaining space in the container, and the number of ores of various sizes required to fill the remaining space is calculated, and the second drive member 93 drives the baffle 9 to extend out of the mounting seat 71, and the four baffles 9 respectively close the second branches in the first channel 101, the second channel 102, the third channel 103 and the fourth channel 104, and then the four first drive members 724 drive the corresponding drive shafts 721 to rotate, so that the transfer components 72 in the first branches in the first channel 101, the second channel 102, the third channel 103 and the fourth channel 104 accurately transfer the largest particles of ore, the larger particles of ore, the smaller particles of ore and the smallest particles of ore to the discharge hopper 10 according to the calculated quantity until the container is just filled.

[0041] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0042] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0043] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. An ironmaking raw material conveying device, comprising: A conveying platform, wherein a conveying roller is provided on the conveying platform; A conveyor belt, the end of which is located above the conveyor platform, and the conveyor belt is used to transfer materials to the conveyor platform; It is characterized in that it also includes a screening mechanism, a plurality of partitions are provided on the conveying platform, and the plurality of partitions form a plurality of channels on the conveying platform, and the screening mechanism is used to send materials into different channels according to their sizes; A quantitative filling mechanism, the quantitative filling mechanism includes a mounting seat and a transfer assembly, the mounting seat is arranged on the conveying platform, a plurality of partitions extend to the mounting seat, so that a plurality of channels extend to the mounting seat, and the transfer assembly is arranged at the end of each channel, and the transfer assembly can transport ore particles in a quantitative manner.

2. The ironmaking raw material conveying device according to claim 1, characterized in that: The screening mechanism comprises a plurality of screen plates, the conveyor belt is distributed obliquely, the plurality of screen plates are all distributed obliquely on the conveyor belt, and the inclination directions of two adjacent screen plates are opposite.

3. The ironmaking raw material conveying device according to claim 2, characterized in that: The conveying platform is also provided with a plurality of folding plates, which are folding line plates. The plurality of folding plates are distributed at intervals, and folding spaces are formed between adjacent folding plates. Each folding space corresponds to one of the channels.

4. The ironmaking raw material conveying device according to claim 3, characterized in that: The transfer assembly includes a first driving member, a driving shaft, a rotating sleeve and blades. The driving shaft is rotatably engaged on the conveying platform. The first driving member is arranged in the conveying platform and is used to drive the driving shaft to rotate. The rotating sleeve is fixedly connected to the driving shaft. The plurality of blades are distributed at intervals along the circumference of the rotating sleeve. Receiving grooves are formed between adjacent blades, and each of the receiving grooves can accommodate one ore particle.

5. The ironmaking raw material conveying device according to claim 4, characterized in that: A partition plate is provided in each of the channels, and the partition plate divides the channels into a first branch and a second branch. The transfer component is located in the first branch, and a baffle plate is slidably fitted on the second branch, and the baffle plate can close the second branch.

6. The ironmaking raw material conveying device according to claim 1, characterized in that: A discharge hopper is provided at the end of the channel. The discharge hopper is a funnel-shaped structure. Each of the discharge hoppers corresponds to one of the channels, and the discharge hopper is flush with the corresponding end of the channel.

7. The ironmaking raw material conveying device according to claim 6, characterized in that: A loading platform is also provided at the bottom of the mounting seat, and the loading platform is located below the discharge hopper.

8. The ironmaking raw material conveying device according to claim 7, characterized in that: A pressure sensor is arranged on the loading platform.

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