Secondary opening and closing feeding hopper

Abstract

The present application belongs to the technical field of hopper device, and further relates to a feeding hopper with secondary opening and closing function. The feeding hopper comprises a frame, an inner conical hopper and an outer conical hopper arranged in the frame, the frame is composed of an upper frame, a lower frame and a stand column connected and supported between the upper frame and the lower frame, oil cylinder upper ear seats and bearing seats are respectively arranged on both sides of the upper frame, the inner conical hopper and the outer conical hopper are open at the top and bottom, the outer conical hopper is sleeved on the outer circle of the inner conical hopper and is spaced from each other, the top opening of the inner conical hopper is fixedly connected with the upper frame through a flange, and a weighing sensor is arranged between the stand column and the lower frame. The present application has the secondary opening and closing function, and adopts the weighing sensor, effectively solves the timely automatic unblocking of the material when the material is blocked, and realizes the rapid discharge of the material, thereby reducing the labor intensity; the automatic control of the movable baffle is adopted, and the space height below the feeding hopper is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of hopper devices, and further describes a feeding hopper with a secondary opening and closing function. Background Technology

[0002] In recent years, increasing the scrap steel ratio, reducing molten iron consumption, and improving steel production capacity have become a trend in steel enterprises. Adding scrap steel to torpedo ladles is an effective means of increasing steel production capacity and reducing molten iron consumption, and it is used by many steel companies in China. However, due to limitations in operating methods and temperature drop inside the torpedo ladle, the amount of scrap steel added is relatively low. Now, by preheating the scrap steel and using automated equipment to complete the scrap steel addition operation in torpedo ladles, the problem of increasing the amount of scrap steel added without increasing the temperature drop of the torpedo ladle can be effectively solved, significantly helping to improve enterprise production capacity and torpedo ladle turnover. Technically, scrap steel preheating equipment has been successfully used in other steel companies in China. To improve thermal efficiency, the operation time of adding scrap steel to the torpedo tank must be effectively controlled. However, in order to protect the refractory material inside the torpedo tank, light and thin scrap steel is mainly added. When light and thin scrap steel enters the torpedo tank from the vibrating feeder through the feeding hopper, material blockage is likely to occur. Especially when the vibrator frequency is high and the feeding speed is too fast, the material spillage around the torpedo tank is serious, the blockage is frequent, and it is difficult to manually clear the blockage on site. In addition, the equipment such as the opening and closing of the feeding hopper is exposed to high temperature, which affects the service life.

[0003] In summary, there is an urgent need for reliable feeding hopper equipment that can effectively solve problems such as material blockage, spillage prevention, fast feeding speed, and reliable operation. However, there are currently no reports on this type of technology. Summary of the Invention

[0004] To address the aforementioned problems, the present invention aims to provide a feeding hopper that is simple in structure, easy to operate, and effectively solves the problem of material blockage.

[0005] To achieve the above objectives, the present invention provides the following technical solution:

[0006] A two-stage opening and closing feeding hopper includes a frame, an inner cone hopper and an outer cone hopper disposed within the frame. The frame consists of an upper frame, a lower frame, and a column connecting and supporting the upper and lower frames. A hydraulic cylinder upper lug and a bearing seat are respectively installed on both sides of the upper frame. The inner and outer cone hoppers are open at the top and bottom, respectively. The outer cone hopper is fitted around the outer ring of the inner cone hopper and spaced apart from it. The upper opening of the inner cone hopper is fixedly connected to the upper frame via a flange. A weighing sensor is provided between the column and the lower frame. The lower opening of the inner cone hopper is inserted into the outer cone hopper from the upper opening of the outer cone hopper, maintaining a gap with the inner wall of the outer cone hopper.

[0007] The outer cone bucket is composed of two half-cone bucket bodies joined together. The upper outer sides of the two half-cone bucket bodies are symmetrically provided with pins. The middle outer sides of the half-cone bucket bodies are provided with at least two layers of reinforcing ribs. The lower outer sides of the two half-cone bucket bodies are symmetrically provided with a pair of fan-shaped plate connecting seats. The half-cone bucket bodies are connected to the bearing seats through the pins to form a first hinge. The reinforcing ribs are provided with counterweight boxes to enable the two half-cone bucket bodies to form a first closure with each other when no external force is applied, and to form a first opening at the bottom of the outer cone bucket.

[0008] It also includes a hydraulic cylinder and two fan-shaped baffles symmetrically arranged at the lower openings of the two semi-conical buckets. The outer side of each fan-shaped baffle is provided with a pin hole, a lower lug of the hydraulic cylinder, and a cylindrical counterweight. The fan-shaped baffles form a second hinge with the connecting seat through the pin hole. The upper lug of the hydraulic cylinder is connected to the upper end of the hydraulic cylinder, and the lower lug of the hydraulic cylinder is connected to the lower end of the hydraulic cylinder. The cylindrical counterweight is used to make the two fan-shaped baffles form a second closure with each other when no external force is applied.

[0009] When the piston rod of the hydraulic cylinder is fully extended, the sector baffle rotates in the forward direction and maintains the second closure, while the two semi-conical buckets maintain the first closure and the first opening;

[0010] When the piston rod of the hydraulic cylinder retracts, the fan-shaped baffles rotate in the opposite direction and separate from each other to form a second opening, while the two semi-conical buckets maintain the first closure and the first opening;

[0011] When the piston rod of the hydraulic cylinder retracts further, the cylindrical counterweight bar abuts against the reinforcing rib plate, causing the sector baffle to stop rotating in the opposite direction. A rigid connection is formed between the semi-conical bucket and the sector baffle. The two semi-conical buckets rotate in opposite directions to form a third opening. The diameter of the third opening is larger than the diameter of the first opening, and the diameter of the second opening is larger than the diameter of the third opening.

[0012] A further improvement to the above solution is that: when the weighing sensor detects that the weight of the material in the inner cone hopper is greater than a set value, the piston rod of the hydraulic cylinder retracts further; when the weighing sensor detects that the weight of the material in the inner cone hopper is less than or equal to the set value, the piston rod of the hydraulic cylinder partially retracts; and when the weighing sensor detects that the weight of the material in the inner cone hopper is zero, the piston rod of the hydraulic cylinder fully expands.

[0013] A further improvement to the above scheme is that: a pair of movable baffles are respectively hinged to the edges of the two fan-shaped baffles that meet each other; a movable pulley is also provided on the outer side of the fan-shaped baffles; a fixed pulley is also provided on the reinforcing rib plate; a steel wire rope is wound around the movable pulley and the fixed pulley; one end of the steel wire rope is connected to the movable baffle; when the fan-shaped baffles are opened and retracted with the piston rod of the oil cylinder, the movable pulley moves up and down and drives the movable baffles to swing in the forward and reverse directions to form a third closure and a fourth opening respectively; the diameter of the fourth opening is larger than the diameter of the second opening.

[0014] A further improvement to the above solution is that: the piston rod of the hydraulic cylinder extends, the sector plate closes, the movable pulley moves down, and the steel wire rope pulls the movable baffle upward to flip.

[0015] The piston rod of the hydraulic cylinder retracts, the sector plate opens, the movable pulley moves upward, the wire rope loosens, and the end of the wire rope connected to the movable baffle moves downward under the gravity of the movable baffle until the movable baffle is completely flipped downward to a vertical state.

[0016] A further improvement to the above scheme is that the counterweight box is located on the outer side of the upper surface of the reinforcing rib plate, and the reinforcing rib plate is approximately rectangular.

[0017] A further improvement to the above solution is that a top cover is connected to the upper surface of the flange.

[0018] A further improvement to the above scheme is that a vibrating feeder is provided at the upper opening of the inner cone hopper.

[0019] The beneficial effects of this invention are as follows: the double-layer reinforced platform adopted in the structure of the feeding hopper not only has the function of preventing deformation of the outer semi-conical hopper, but also has the effects of preventing smoke and dust, heat insulation, and heat radiation protection; the feeding hopper has a secondary opening and closing function and adopts a weighing sensor, which effectively solves the problem of timely and automatic clearing of material blockage and realizes rapid material discharge, which not only reduces the intensity of manual labor; the automatic control of the movable baffle increases the space height under the feeding hopper. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the second closed structure of Embodiment 1 of the present invention;

[0021] Figure 2 This is a schematic diagram of the second opening in Embodiment 1 of the present invention;

[0022] Figure 3 This is a schematic diagram of the third opening structure of the second opening in Embodiment 1 of the present invention;

[0023] Figure 4 This is a schematic diagram of the inner cone of the present invention;

[0024] Figure 5 This is a schematic diagram of the framework of the present invention;

[0025] Figure 6 This is a schematic diagram of the structure of the semi-conical bucket of the present invention;

[0026] Figure 7 yes Figure 6 Top view;

[0027] Figure 8 This is a schematic diagram of the structure of the sector plate of the present invention;

[0028] Figure 9 This is a schematic diagram of the second closed structure in Embodiment 2 of the present invention;

[0029] Figure 10 This is a schematic diagram of the mechanism of the second opening in Embodiment 2 of the present invention.

[0030] Example in the diagram: 1. Vibrating feeder; 2. Top cover; 3. Upper frame; 301. Upper lug seat of hydraulic cylinder; 302. Bearing seat; 4. Inner cone hopper; 401. Flange; 5. Hydraulic cylinder; 6. Weighing sensor; 7. Lower frame; 8. Semi-cone hopper body; 801. Pin shaft; 802. Upper reinforcing rib plate; 803. Lower reinforcing rib plate; 804. Counterweight box; 805. Connecting seat; 9. Fan-shaped baffle; 901. Pin hole; 902. Cylindrical counterweight bar; 903. Lower lug seat; 904. Connecting plate; 10. Movable baffle; 11. Movable pulley; 12. Steel wire rope; 13. Fixed pulley. Detailed Implementation

[0031] Example 1

[0032] like Figures 1 to 8 As shown, a two-stage opening and closing feeding hopper includes a frame, an inner cone hopper 4 and outer cone hoppers disposed within the frame. The frame consists of an upper frame 3, a lower frame 7, and a column connecting and supporting the upper frame 3 and the lower frame 7. A hydraulic cylinder 5 upper lug 301 and a bearing seat 302 are respectively installed on both sides of the upper frame 3. The outer cone hoppers are fitted around the outer ring of the inner cone hopper 4 and spaced apart from each other. The upper opening of the inner cone hopper 4 is fixedly connected to the upper frame 3 via a flange 4. A weighing sensor 6 is provided between the column and the lower frame 7. A top cover 2 is connected to the upper surface of the flange 4. Both the inner cone hopper 4 and the two outer cone hoppers have through-hole openings at the top and bottom. A vibrating feeder 1 is installed at the upper opening of the inner cone hopper 4.

[0033] The outer cone hopper is composed of two half-cone hopper bodies 8 joined together. The lower opening of the inner cone hopper 4 is inserted into the outer cone hopper from the upper opening, maintaining a gap with the inner wall of the outer cone hopper to prevent interference. Pins 801 are symmetrically arranged on the upper outer sides of the half-cone hopper bodies 8. Two layers of reinforcing ribs are provided on the middle outer side of the half-cone hopper bodies 8, specifically an upper reinforcing rib 802 and a lower reinforcing rib 803. The upper reinforcing rib 802 and the lower reinforcing rib 803 are approximately rectangular. A rectangular counterweight box 804 is also arranged on the outer side of the upper surface of the lower reinforcing rib 803.

[0034] A pair of fan-shaped plate connecting seats 805 are symmetrically provided on the lower outer side of the semi-conical bucket body 8. The semi-conical bucket body 8 forms a first hinge connection with the bearing seat 302 through the pin shaft 801.

[0035] The counterweight box 804 arranged on the reinforcing rib plate is used to make the two semi-conical buckets 8 form a first closure with each other when no external force is applied, and to make the lower opening of the outer conical bucket form a first opening; it also includes a hydraulic cylinder 5 and two fan-shaped baffles 9 symmetrically arranged at the lower opening of the two semi-conical buckets. The fan-shaped baffles 9 are provided with pin holes 901, lower ear seats 903 of hydraulic cylinder 5 and cylindrical counterweight bars 902 on the outside. The fan-shaped baffles 9 form a second hinge with the connecting seat 805 through the pin holes 901. The upper ear seat 301 of hydraulic cylinder 5 is connected to the upper end of hydraulic cylinder 5, and the lower ear seat 903 of hydraulic cylinder 5 is connected to the lower end of hydraulic cylinder 5.

[0036] More than two connecting plates 904 are evenly provided on the lower inner edge of the fan-shaped baffle 9. The connecting plates 904 are used to suspend the movable baffle 10.

[0037] like Figure 8 As shown, the sector baffle 9 is hinged to the connecting seat 805 through the pin hole 901. The cylindrical counterweight 902 allows the sector baffle 9 to tilt to one side of the cylindrical counterweight 902 with the pin hole 901 as the center. The cylindrical counterweight 902 is used to make the two sector baffles 9 form a second closure with each other when there is no external force. When the piston rod of the oil cylinder 5 is fully opened, the sector baffle 9 rotates in the positive direction and maintains the second closure. At the same time, the two semi-conical buckets 8 maintain the first closure and the first opening.

[0038] When the piston rod of the hydraulic cylinder 5 retracts, the sector baffle 9 rotates in the opposite direction and separates to form a second opening, while the two semi-conical buckets 8 maintain the first closure and the first opening. When the piston rod of the hydraulic cylinder 5 retracts further, the cylindrical counterweight 902 abuts against the reinforcing rib, causing the sector baffle 9 to stop rotating in the opposite direction. A rigid connection is formed between the semi-conical bucket and the sector baffle 9, and the two semi-conical buckets rotate in the opposite direction to form a third opening. The diameter of the third opening is larger than the diameter of the first opening, and the diameter of the second opening is larger than the diameter of the third opening.

[0039] When the weighing sensor 6 detects that the weight of the material in the inner cone hopper 4 is greater than the set value, the piston rod of the hydraulic cylinder 5 retracts further; when the weighing sensor 6 detects that the weight of the material in the inner cone hopper 4 is less than or equal to the set value, the piston rod of the hydraulic cylinder 5 retracts partially; when the weighing sensor 6 detects that the weight of the material in the inner cone hopper 4 is zero, the piston rod of the hydraulic cylinder 5 fully extends.

[0040] Example 2

[0041] like Figures 9 to 10 As shown, control of the movable baffle 10 is added based on Embodiment 1.

[0042] A movable pulley 11 is provided on the outer side of the fan-shaped baffle 9, and a fixed pulley 13 is provided on the reinforcing rib plate. A steel wire rope 12 is wound around the movable pulley 11 and the fixed pulley 13. One end of the steel wire rope 12 is connected to the movable baffle 10. When the fan-shaped baffle 9 is opened and retracted with the piston rod of the oil cylinder 5, the movable pulley 11 moves up and down and drives the movable baffle 10 to swing in the forward and reverse directions to form a third closure and a fourth opening respectively. The diameter of the fourth opening is larger than the diameter of the second opening.

[0043] When the piston rod of the hydraulic cylinder 5 extends, the sector-shaped baffle 9 closes, the movable pulley 11 moves downward, and the traction wire rope 12 drives the movable baffle 10 to flip upward; when the sector-shaped baffle 9 opens, the piston rod of the hydraulic cylinder 5 retracts, the movable pulley 11 moves upward, the wire rope 12 loosens, and the connection end of the wire rope 12 with the movable baffle 10 moves downward under the gravity of the movable baffle 10 until the movable baffle 10 is completely flipped downward to a vertical state.

[0044] This invention is not limited to the above embodiments. All technical solutions formed by equivalent substitutions fall within the protection scope of this invention.

Claims

1. A secondary opening and closing feeding hopper, comprising a frame, an inner cone hopper and an outer cone hopper arranged in the frame, the frame is composed of an upper frame, a lower frame and a stand column coupled and supported between the upper frame and the lower frame, both sides of the upper frame are respectively provided with an upper ear seat of an oil cylinder and a bearing seat, the inner cone hopper and the outer cone hopper are open at the top and bottom, the outer cone hopper is sleeved on the outer circle of the inner cone hopper and spaced from each other, the top opening of the inner cone hopper is fixedly connected with the upper frame through a flange, a weighing sensor is arranged between the stand column and the lower frame, the bottom opening of the inner cone hopper is inserted into the outer cone hopper from the top opening of the outer cone hopper and keeps a gap with the inner wall of the outer cone hopper; characterized in that: the outer cone hopper is composed of two half-cone bodies, the upper outer sides of the two half-cone bodies are respectively and symmetrically provided with a pin shaft, the middle outer sides of the half-cone bodies are provided with at least two layers of reinforcing rib plates, the lower outer sides of the two half-cone bodies are respectively and symmetrically provided with a pair of coupling seats of fan-shaped plates, the half-cone bodies are first hingedly connected with the bearing seat through the pin shaft; the reinforcing rib plates are provided with counterweight boxes to make the two half-cone bodies form a first closure and the bottom opening of the outer cone hopper form a first opening when no external force is applied; the oil cylinder and two fan-shaped baffles symmetrically arranged at the bottom openings of the two half-cone bodies are further included, the outer sides of the fan-shaped baffles are provided with a pin hole, a lower ear seat of the oil cylinder and a cylindrical counterweight strip, the fan-shaped baffles are second hingedly connected with the coupling seats through the pin hole, the upper ear seat of the oil cylinder is connected with the upper end of the oil cylinder, the lower ear seat of the oil cylinder is connected with the lower end of the oil cylinder; the cylindrical counterweight strip is used to make the two fan-shaped baffles form a second closure when no external force is applied; when the piston rod of the oil cylinder is fully extended, the fan-shaped baffles are positively rotated and maintained in the second closure, and the two half-cone bodies are maintained in the first closure and the first opening; when the piston rod of the oil cylinder is partially retracted, the fan-shaped baffles are reversely rotated and separated from each other to form a second opening, and the two half-cone bodies are maintained in the first closure and the first opening; when the piston rod of the oil cylinder is further retracted, the cylindrical counterweight strip abuts against the reinforcing rib plates to stop the reverse rotation of the fan-shaped baffles, the half-cone bodies and the fan-shaped baffles form a rigid connection, and the two half-cone bodies are reversely rotated to form a third opening; the diameter of the third opening is larger than that of the first opening, and the diameter of the second opening is larger than that of the third opening. when the weighing sensor detects that the weight of the material in the inner cone hopper is greater than a set value, the piston rod of the oil cylinder is caused to be further retracted; when the weighing sensor detects that the weight of the material in the inner cone hopper is less than or equal to the set value, the piston rod of the oil cylinder is caused to be partially retracted; when the weighing sensor detects that the weight of the material in the inner cone hopper is equal to zero, the piston rod of the oil cylinder is caused to be fully extended.

2. The secondary open / close hopper according to claim 1, characterized in that: ​ 3. The secondary open / close hopper according to claim 1 or 2, characterized by: Two opposite edges of the sector-shaped baffle are respectively hinged with a pair of movable baffles, the outer side of the sector-shaped baffle is further provided with a movable pulley, the reinforcing rib plate is further provided with a fixed pulley, the movable pulley and the fixed pulley are wound with a steel wire rope, one end of the steel wire rope is connected with the movable baffle, when the sector-shaped baffle is expanded and retracted along with the piston rod of the oil cylinder, the movable pulley moves up and down to drive the movable baffle to swing forward and backward to form a third closing and a fourth opening respectively, the caliber of the fourth opening is larger than that of the second opening.

4. The secondary opening and closing feeding hopper according to claim 3, characterized in that: when the piston rod of the oil cylinder is extended, the sector-shaped baffle is closed, the movable pulley moves downward to pull the steel wire rope to drive the movable baffle to turn upward; when the piston rod of the oil cylinder is retracted, the sector-shaped baffle is opened, the movable pulley moves upward, the steel wire rope is loosened, the end of the steel wire rope connected with the movable baffle moves downward under the gravity of the movable baffle until the movable baffle is completely turned downward to the vertical state.

5. The secondary open / close hopper according to claim 1, wherein: The counterweight box is arranged on the outer side of the upper surface of the reinforcing rib plate, and the reinforcing rib plate is approximately rectangular.

6. The secondary open / close hopper according to claim 1, wherein: The upper surface of the flange is connected with an upper cover.

7. The secondary open / close hopper according to claim 1, wherein: The upper opening of the inner conical hopper is provided with a vibrating feeder.

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