Hollow covering agent production feeding device

Abstract

The utility model belongs to the technical field of hollow covering agent production, and particularly relates to a hollow covering agent production feeding device which comprises a plurality of connecting rods, the connecting rods are fixedly connected with two connecting plates, a supporting frame is arranged above the connecting plates in a sleeved mode, a discharging hopper is fixed in the supporting frame, the lower end of the discharging hopper is connected with a discharging pipe, and the other end of the discharging pipe is communicated with a feeding port of an electric arc furnace. A cross-shaped conical blade is fixedly arranged in the discharging hopper; a dustproof plate is hinged to the top of each side plate of the discharging hopper; the two ends of the hinge shaft of each dustproof plate are fixedly connected with bevel gears, the two corresponding bevel gears between every two adjacent dustproof plates are meshed with each other, and a power device for driving the dustproof plates to be opened and closed is arranged on the side face of the upper end of the supporting frame. A bag of raw materials is punctured through the blade, the materials enter the electric arc furnace through the discharging hopper and the discharging pipe, manual participation is reduced, and meanwhile dust is prevented from floating through the hopper with a channel opening formed by folding the four protection plates.

Description

Technical Field

[0001] The utility model belongs to the technical field of hollow covering agent production, and in particular relates to a hollow covering agent production feeding device. Background Art

[0002] The preparation of hollow covering agents usually involves heating raw materials such as lime to a molten state in an electric arc furnace, followed by air cutting and granulation to obtain hollow particle balls, which are the hollow covering agents. When the lime raw materials are added to the electric arc furnace, due to the high furnace body, a platform is usually built or constructed on one side of the furnace body, and workers stand on the platform. The bagged lime and other raw materials are then lifted by a crane and moved to the workers, and then manually dumped into the furnace to complete the loading. On the one hand, this loading method has large restrictions, and since the dumping needs to be completed, a guardrail cannot be set on the side of the platform close to the furnace body, resulting in risks in the workers' work process, high labor intensity, and low efficiency. In addition, since the platform is located at a high position, the raw materials are scattered during the dumping process, resulting in a high dust content in the working environment. Summary of the invention

[0003] The utility model aims to solve the problems that in the existing preparation of hollow covering agents, due to the high furnace body of the electric arc furnace, the production loading can only be achieved by building a platform and manually dumping the bagged materials lifted by the crane on the platform, which involves safety risks, large labor force, low efficiency and easy generation of dust. A hollow covering agent production loading device is provided, in which the bag of raw materials is pierced by a blade, and the materials enter the electric arc furnace through a feeding funnel and a feeding pipe, and at the same time, a funnel with a passage formed by four protective plates is folded up to prevent dust from floating around.

[0004] In order to achieve the above purpose, the technical solution of the utility model is:

[0005] A feeding device for producing a hollow covering agent comprises a plurality of connecting rods fixedly arranged on one side of an electric arc furnace, wherein the plurality of connecting rods are respectively fixedly connected to two connecting plates arranged opposite to each other, a support frame is sleeved above the two connecting plates, a feeding hopper in the shape of a quadrangular pyramid is fixedly arranged in the support frame, a feeding port at the lower end of the feeding hopper is fixedly connected to a feeding pipe, the other end of the feeding pipe is connected to a feeding port of the electric arc furnace, the feeding hopper is fixed by means of the connecting rods, the connecting plates and the support frame, and then the material enters the electric arc furnace through the feeding pipe.

[0006] Support rods are fixedly arranged on the inner wall of the discharge funnel, a cylinder is fixedly connected between the multiple support rods, and a cross-conical blade is fixedly arranged on the top of the cylinder. The bagged material lifted by the crane to the top of the discharge funnel is pierced by the blade so that the material falls into the discharge funnel.

[0007] Support protrusions are fixedly provided at both ends of the top of each side plate of the discharge funnel, and a dustproof plate with a trapezoidal cross-section is hinged between the two corresponding support protrusions on the same side plate of the discharge funnel. A funnel that is inverted on the discharge funnel is formed by multiple dustproof plates, so that dust can be reduced when the bagged material is pierced by the blade and falls down. After completing one bagged material loading, the four dustproof plates rotate and open to facilitate the next loading.

[0008] Both ends of the hinge shaft of each dustproof plate are passed through the corresponding supporting protrusion and fixedly connected with bevel gears, and the two corresponding bevel gears between two adjacent dustproof plates are meshed with each other. A power device for driving the dustproof plate to open and close is arranged on the side surface of the upper end of the support frame. Under the driving action of the power device, multiple bevel gears cooperate with each other to realize the synchronous opening and retracting of the four dustproof plates.

[0009] Preferably, the power device includes a support plate and a motor fixedly mounted on the support plate, the support plate is fixedly mounted on the side of the support frame, the hinge shaft of one dustproof plate passes through a bevel gear at one end thereof and is fixedly connected to a first sprocket, the output end of the motor is fixedly connected to a second sprocket, the first sprocket and the second sprocket are connected via a chain transmission, the motor drives the hinge shaft to rotate via the chain transmission, and then the corresponding bevel gear rotates.

[0010] Preferably, the side surfaces between two adjacent dustproof plates are arranged in a matching step shape to ensure that the dustproof plates fit tightly together.

[0011] The two opposite side plates of the support frame are slidably sleeved with connecting plates extending downwardly from the support frame. The connecting plates and the support frame are fastened with bolts, thereby facilitating the adjustment of the height of the support frame and the discharge hopper.

[0012] A triangular rubber pad is fixedly provided on the upper end of each dustproof plate, and the multiple rubber pads cooperate together to cover the rectangular area surrounded by the upper ends of the multiple dustproof plates. The cooperation of the multiple rubber pads can further prevent dust from floating.

[0013] Through the above technical solution, the beneficial effects of the utility model are:

[0014] 1. The utility model uses a blade to cut the bagged materials hoisted by the crane, and then transports the materials to the electric arc furnace through a feeding funnel and a feeding pipe. The whole process avoids manual participation near the electric arc furnace, greatly improving the work efficiency and the safety of the feeding process.

[0015] 2. The utility model reduces dust dispersion through four adjustable dust-proof plates, thus avoiding waste and affecting the factory environment.

[0016] 3. The utility model further ensures the effect of preventing dust from scattering during the loading process by fixing corresponding matching rubber pads above the four dustproof plates.

[0017] 4. The utility model supports the hinge shaft by means of a plurality of supporting protrusions arranged on the discharge hopper, realizes the synchronous opening and closing of four dust shields by means of the mutual meshing transmission of a plurality of bevel gears, and drives and controls them by means of a power device to prevent the dust shields from affecting the lifting of bagged materials by the crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model.

[0019] Figure 2 This is a schematic diagram of the structure of the blade installation of the utility model.

[0020] Figure 3 For this utility model Figure 1 Enlarged view of point A in the middle.

[0021] Figure 4 For this utility model Figure 1 Enlarged view of location B of China Railway.

[0022] The numbers in the accompanying drawings are: 1 is a connecting rod, 2 is a connecting plate, 3 is a supporting frame, 4 is a discharge funnel, 5 is a discharge pipe, 6 is a support rod, 7 is a cylinder, 8 is a blade, 9 is a supporting protrusion, 10 is a dustproof plate, 11 is a bevel gear, 12 is a supporting plate, 13 is a motor, 14 is a first sprocket, 15 is a second sprocket, 16 is a chain, 17 is a bolt, and 18 is a rubber pad. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0024] like Figure 1 to Figure 4 As shown, the present embodiment provides a hollow covering agent production feeding device, including a plurality of connecting rods 1 fixedly arranged on one side of an electric arc furnace, one end of the plurality of connecting rods 1 is flush, and the other end is fixedly connected to the furnace body according to the condition of the side wall of the electric arc furnace body, and the fixed connection method can be achieved by a commonly used fixing method in the field, such as welding, bolt fastening connection, etc. The connecting rods 1 are arranged in two corresponding rows, and each row of connecting rods 1 corresponds to each other up and down, and the plurality of connecting rods 1 are respectively fixedly connected to two relatively arranged connecting plates 2, that is, each row of connecting rods 1 is fixedly connected to a connecting plate, and a support frame 3 is sleeved above the two connecting plates 2, and a connecting plate 2 extending downwardly from the support frame 3 is slidably sleeved in two opposite side plates of the support frame 3, and the connecting plate 2 and the support frame 3 are fastened by bolts 17, and the upper and lower support frames 3 are slid to the corresponding heights as needed, and then the connecting plates 2 and the support frame 3 are fixed by bolts 17.

[0025] A feeding hopper 4 in the shape of a quadrangular pyramid is fixedly arranged in the support frame 3, and the feeding hopper 4 is fixed by the support frame 3. The lower end discharge port of the feeding hopper 4 is fixedly connected with a feeding pipe 5, and the other end of the feeding pipe 5 is connected to the feed port of the electric arc furnace. The material enters the electric arc furnace through the feeding hopper 4 and the feeding pipe 5 to be heated and melted. Support rods 6 are fixedly arranged on the inner wall of the feeding hopper 4, and a cylinder 7 is fixedly connected between the multiple support rods 6. A cross-conical blade 8 is fixedly arranged on the top of the cylinder 7. The crane lifts the bagged material to the top of the blade 8 and then descends. The blade cuts the bagged material, and the material falls into the feeding hopper 4 through the gap between the blades 8, the inside of the cylinder 7 and the outside of the blade under the action of its own gravity.

[0026] Support protrusions 9 are fixedly provided at both ends of the top of each side plate of the unloading funnel 4, and a dustproof plate 10 with a trapezoidal cross-section is hinged between the two corresponding support protrusions 9 on the same side plate of the unloading funnel 4. When the four dustproof plates 10 are folded, they form an inverted quadrangular pyramid-shaped funnel, and the side surfaces between two adjacent dustproof plates 10 are arranged to be matched with step shapes to ensure that the adjacent dustproof plates 10 fit tightly.

[0027] Both ends of the hinge shaft of each dustproof plate 10 pass through the corresponding supporting protrusion 9 and are fixedly connected with a bevel gear 11, and the two corresponding bevel gears 11 between two adjacent dustproof plates 10 are meshed with each other to achieve the synchronous folding or opening of the four dustproof plates 10.

[0028] A power device for driving the dustproof plate 10 to open and close is arranged on the upper side of the support frame 3, and the power device includes a support plate 12 and a motor 13 fixedly arranged on the support plate 12. The support plate 12 is fixedly arranged on the side of the support frame 3, and a hinge shaft of one of the dustproof plates passes through a bevel gear 11 at one end thereof and is fixedly connected to a first sprocket 14, and an output end of the motor 13 is fixedly connected to a second sprocket 15, and the first sprocket 14 and the second sprocket 15 are connected via a chain transmission of a chain 16. The motor 13 drives the second sprocket 15 to rotate, and then drives the first sprocket 14 to rotate synchronously through the chain 16, and drives the corresponding hinge shaft of the first sprocket 14 to rotate. Due to the meshing transmission between multiple bevel gears 11, the four dustproof plates 10 are driven to open or close, so as to realize the lifting of bagged materials into the upper end of the discharge funnel 4 or avoid dust scattering during the loading process.

[0029] A triangular rubber pad 18 is fixedly provided on the upper end of each dustproof plate 10, and the multiple rubber pads 18 cooperate together to cover the rectangular area enclosed by the upper ends of the multiple dustproof plates 10. When the four dustproof plates 10 are folded, the side walls of the four rubber pads 18 fit together in pairs to further prevent dust from scattering. At the same time, since the rubber pads 18 are made of a relatively soft material, they will not affect the departure of the crane wire rope and the lifted material bags after loading.

[0030] When in use, the dustproof plate 10 is in an open state in the initial state, the crane lifts the bagged material to the top of the discharge funnel 4, and then drives the bagged material downward, the cross-conical blade 8 cuts the bagged material, and the bagged material falls through the gap between the cross-conical blade 8, the cylinder 7, etc. and falls into the discharge funnel 4, and enters the electric arc furnace through the discharge pipe 5 to complete the loading.

[0031] When the bagged material moves to the top of the discharge funnel 4, the motor 13 drives the second sprocket 15 to rotate, and then drives the first sprocket 14 to rotate synchronously through the chain 16, and drives the corresponding hinge shaft of the first sprocket 14 to rotate. Due to the meshing transmission between the multiple bevel gears 11, the four dust-proof plates 10 are driven to close. When the four dust-proof plates 10 are closed, their upper ends form a rectangular area, and the four rubber pads 18 cover the rectangular area, thereby effectively blocking the material and preventing dust from being scattered. Since the rubber pads 18 are made of a soft material, they will not affect the passage of the crane wire rope. When the material is completely dumped out, the crane moves the empty material bag up and leaves through the rectangular area where the rubber pads 18 are located. Then the next bagged material is hoisted to the vicinity of the discharge funnel 4, and the motor 18 is reversed to open the four dust-proof plates 10, and then the above process is repeated.

[0032] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A hollow covering agent production feeding device, characterized in that: It comprises a plurality of connecting rods (1) fixedly arranged on one side of an electric arc furnace, wherein the plurality of connecting rods (1) are respectively fixedly connected to two connecting plates (2) arranged opposite to each other, a support frame (3) is sleeved above the two connecting plates (2), a four-sided pyramid-shaped material discharge hopper (4) is fixedly arranged inside the support frame (3), a material discharge port at the lower end of the material discharge hopper (4) is fixedly connected to a material discharge pipe (5), and the other end of the material discharge pipe (5) is connected to a material feed port of the electric arc furnace; Support rods (6) are fixedly arranged on the inner wall of the discharge funnel (4), a cylinder (7) is fixedly connected between the plurality of support rods (6), and a cross-conical blade (8) is fixedly arranged on the top of the cylinder (7); Support protrusions (9) are fixedly provided at both ends of the top of each side plate of the discharge funnel (4), and a dustproof plate (10) with a trapezoidal cross section is hinged between two corresponding support protrusions (9) on the same side plate of the discharge funnel (4); Both ends of the hinge shaft of each dustproof plate (10) penetrate the corresponding support protrusion (9) and are fixedly connected to a bevel gear (11), the two corresponding bevel gears (11) between two adjacent dustproof plates (10) are meshed with each other, and a power device for driving the dustproof plate (10) to open and close is arranged on the side surface of the upper end of the support frame (3).

2. A hollow covering agent production and feeding device according to claim 1, characterized in that: The power device comprises a support plate (12) and a motor (13) fixedly mounted on the support plate (12); the support plate (12) is fixedly mounted on the side of the support frame (3); a hinge shaft of a dustproof plate (10) passes through a bevel gear (11) at one end thereof and is fixedly connected to a first sprocket (14); an output end of the motor (13) is fixedly connected to a second sprocket (15); and the first sprocket (14) and the second sprocket (15) are connected via a chain drive via a chain (16).

3. A hollow covering agent production and feeding device according to claim 1, characterized in that: The side surfaces between two adjacent dustproof plates (10) are arranged in a matching step shape.

4. A hollow covering agent production and feeding device according to claim 1, characterized in that: A connecting plate (2) extending downwardly out of the supporting frame (3) is provided in a sliding sleeve inside two opposite side plates of the supporting frame (3); the connecting plate (2) and the supporting frame (3) are fastened and connected via bolts (17).

5. A hollow covering agent production and feeding device according to claim 1, characterized in that: A triangular rubber pad (18) is fixedly provided on the upper end of each dustproof plate (10), and the plurality of rubber pads (18) cooperate together to cover a rectangular area enclosed by the upper ends of the plurality of dustproof plates (10).

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