Ton bag packing ferroalloy screening device

Abstract

The utility model relates to alloy screening test technical field, concretely relates to a ton bag packaging ferroalloy screening device, including hopper, hopper discharge gate and sieve body feed port intercommunication, the sieve body is closed sieve body, and the sieve body adopts double vibration motor drive, and the two motors of double vibration motor do synchronous, and the rotation of anti -can, and the discharge gate of sieve body includes powder discharge gate and block discharge gate, and the block discharge gate is provided with the material collecting bag, and the material collecting bag is placed in the car hopper of trolley, and the top of sieve body is provided with dust removal mouth, and the dust removal mouth is connected with dust remover, still including cantilever crane and weighing equipment, and hopper, material collecting bag and weighing equipment are all in the working range of cantilever crane, the utility model can realize the whole process operation of ferroalloy hoisting, hopper feeding, sieve body screening, block bagging and weighing, through setting up cantilever crane and trolley, the labor intensity of staff is reduced, and the work efficiency is increased, through using closed sieve body and setting dust removal mouth and dust remover, reduce the dust pollution of screening process.

Description

Technical Field

[0001] This utility model relates to the field of alloy screening test technology, specifically to a ton bag packaging iron alloy screening device. Background Technology

[0002] Alloy screening refers to separating alloy materials into different particle size grades and then calculating the weight percentage of each grade. Currently, the steel industry primarily uses manual transport to add the ferroalloy to the screen surface when screening ton-bag packaged ferroalloys. The screen surface is then controlled to reciprocate, separating lumpy materials from powdery (small particle) materials. The lumpy material is then transferred to a platform scale for weighing. The drawbacks of this method are: the entire screening process requires multiple handling and loading / unloading operations, resulting in high labor intensity for workers and low efficiency and accuracy; moreover, there is a risk of material spillage and mixing during transport, which not only wastes material but also necessitates repeating the screening process, further impacting work efficiency.

[0003] To address the drawbacks of manual operation and high labor intensity in the feeding and unloading processes, CN221208940 U discloses an alloy screening and weighing device. This device uses a bag-breaking and lifting frame to pull bags containing raw materials to the highest point of the unit. Then, a bag-breaking hopper is used to open the bags and empty them. After screening, the bottom of the receiving hopper is opened, and the material slides onto a conveyor belt, completing the unloading process. However, this technical solution generates dust pollution during the screening process, which can negatively impact the health of workers and the environment. Utility Model Content

[0004] To address the technical problem of dust pollution in existing alloy screening devices, this utility model provides a ton bag packaging ferroalloy screening device.

[0005] The specific technical solution of this utility model is as follows:

[0006] A ton bag packaging ferroalloy screening device includes a hopper, which is fixedly installed on the ground by a bracket. The bracket is also equipped with a placement frame, which has a discharge outlet for discharging the ton bag. The discharge outlet corresponds to the inlet of the hopper. The outlet of the hopper is connected to the inlet of the screen body. A valve plate is provided at the bottom of the hopper.

[0007] The screen body is a closed screen body, driven by two vibrating motors. The two motors rotate synchronously and in opposite directions. The screen body has a powder outlet and a block outlet. A collection bag is installed at the block outlet. The collection bag is placed in the hopper of a trolley. The trolley is slidably installed on the discharge track. The wheels of the trolley are equipped with locking devices. A dust removal port is opened at the top of the screen body. The dust removal port is connected to the dust collector through a pipe.

[0008] It also includes a cantilever crane and weighing equipment, with the hopper, collection bag and weighing equipment all located within the working range of the cantilever crane.

[0009] Furthermore, a fixing ring is movably provided on the upper surface of the feed inlet of the hopper, and the fixing ring is connected to the hopper by an electric telescopic rod, and the number of electric telescopic rods is at least two.

[0010] Furthermore, a bag breaker is installed at the feed inlet of the hopper, and the bag breaker includes blades.

[0011] Furthermore, an operating platform is installed on one side of the hopper, with guardrails on the platform and a ladder between the platform and the ground.

[0012] Furthermore, a filter screen is installed on the dust removal port at the top of the screen body, and a fan is installed on the pipe connecting the dust removal port and the dust collector.

[0013] Furthermore, the dust collector is one or a combination of bag filters, cyclone filters, and electrostatic precipitators.

[0014] Furthermore, a powder receiving box is installed at the powder outlet.

[0015] Furthermore, the discharge track is inclined, with one end of the discharge track near the block material discharge port being higher than the other end.

[0016] Furthermore, the tilt angle of the discharge track is 5°~10°.

[0017] Furthermore, the weighing equipment is an electronic platform scale.

[0018] The beneficial effects of this utility model are as follows:

[0019] The ton bag packaging ferroalloy screening device provided by this utility model can realize the whole process operation of ferroalloy hoisting, hopper feeding, screen body screening, block material bagging and weighing.

[0020] This invention reduces the labor intensity of workers and increases work efficiency by incorporating a cantilever crane and a trolley.

[0021] This invention, by setting up a placement frame, allows the discharge outlet at the bottom of the ton bag to be closer to the feed inlet of the hopper, reducing dust overflow during the discharge process; by using a closed screen body and setting up a dust removal port and dust collector, dust pollution during the screening process is reduced, further minimizing the impact on the health of workers and the environment.

[0022] This invention uses a screen body driven by two vibrating motors. The two motors operate synchronously in opposite directions, causing the material to make a parabolic jumping motion on the screen surface. The vibration frequency and amplitude of the screen surface are stable and reliable, and the repeatability of the test results is good. Attached Figure Description

[0023] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the main structure of the ton bag packaging ferroalloy screening device according to a specific embodiment of this utility model.

[0025] Figure 2 This is a schematic diagram of the hopper and the fixing ring in the ton bag packaging ferroalloy screening device of Example 1.

[0026] Figure 3 This is a schematic diagram of the hopper and bag breaker in the ton bag packaging ferroalloy screening device of Example 2.

[0027] In the diagram, 1-hopper, 2-support, 3-valve plate, 4-step ladder, 5-operating platform, 6-screen body, 7-dual vibration motor, 8-powder discharge port, 9-block material discharge port, 10-trolley, 11-dust removal port, 12-cantilever crane, 13-dust collector, 14-weighing equipment, 15-placement frame, 16-fixing ring, 17-electric telescopic rod, 18-rotating shaft, 19-blade. Detailed Implementation

[0028] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0029] Example 1

[0030] like Figure 1 , Figure 2 As shown, a ton bag packaging ferroalloy screening device includes a hopper 1, which is fixedly installed on the ground by a bracket 2. The bracket 2 is also provided with a placement frame 15, which includes a horizontal top frame and four legs. The horizontal top frame is fixedly connected to the bracket 2 by the four legs. When the cantilever crane 12 lifts the ton bag above the feed inlet of the hopper 1, the placement frame 15 can support the bottom of the ton bag. The middle of the horizontal top frame is provided with a discharge outlet for discharging the ton bag, which corresponds to the position of the feed inlet of the hopper 1.

[0031] A fixing ring 16 is movably disposed on the upper surface of the feed inlet of hopper 1. The fixing ring 16 is connected to hopper 1 by an electric telescopic rod 17. There are two electric telescopic rods 17, which are symmetrically arranged on both sides of the feed inlet (in other embodiments, the number of electric telescopic rods 17 can be set to at least two, and multiple electric telescopic rods 17 are evenly distributed along the circumference of the feed inlet). The fixed end of the electric telescopic rod 17 is fixedly disposed on the side wall of the feed inlet of hopper 1, and the extended end of the electric telescopic rod 17 is fixed to the side of the fixing ring 16 and can extend upward. When the extended end of the electric telescopic rod 17 extends, the fixing ring 16 will rise accordingly and leave the upper surface of the feed inlet of hopper 1. When the extended end of the electric telescopic rod 17 retracts, the fixing ring 16 will descend accordingly and return to the upper surface of the feed inlet of hopper 1.

[0032] The discharge port of hopper 1 is connected to the inlet of screen body 6, and a valve plate 3 is provided at the bottom of hopper 1. Screen body 6 is a closed screen body, driven by dual vibration motors 7. The two motors of dual vibration motors 7 rotate synchronously and in opposite directions, so that the material can make parabolic jumping motion on the screen surface inside screen body 6. The discharge port of screen body 6 includes powder discharge port 8 and block material discharge port 9. A powder receiving box is provided below powder discharge port 8, and a collection bag is provided below block material discharge port 9. The collection bag is placed in the hopper of trolley 10. Trolley 10 is slidably installed on the discharge track, which is inclined at 5°, with the end closer to block material discharge port 9 higher than the other end. The wheels of trolley 10 are equipped with locking devices to prevent trolley 10 from sliding during the collection of material in the collection bag.

[0033] The top of the screen body 6 is provided with a dust removal port 11, and a filter screen is installed on the dust removal port 11. The dust removal port 11 is connected to the dust collector 13 through a pipe. A fan is installed on the pipe between the dust removal port 11 and the dust collector 13. The dust collector 13 is one or a combination of bag dust collector, cyclone dust collector, and electrostatic dust collector.

[0034] It also includes a cantilever crane 12 and a weighing device 14 (such as an electronic scale), with the hopper 1, the receiving bag and the weighing device 14 all located within the working range of the cantilever crane 12.

[0035] The ton bag packaging ferroalloy screening device of this embodiment is particularly suitable for ton bags with a discharge port at the bottom. This type of ton bag has an outer cover around the discharge port, and the discharge port of the ton bag is sealed with a tying rope.

[0036] The procedure for alloy screening using this embodiment is as follows:

[0037] The cantilever crane 12 is used to lift the ton bag containing ferroalloy onto the placement frame 15. The discharge port at the bottom of the ton bag and its outer cover pass through the discharge port at the center of the horizontal top frame of the placement frame 15. The operator activates the electric telescopic rod 17, which extends upward, causing the fixing ring 16 on the feed inlet of hopper 1 to rise. A gap is formed between the fixing ring 16 and the upper surface of the feed inlet of hopper 1. The operator then adjusts the outer cover of the ton bag's discharge port. Next, the operator controls the electric telescopic rod 17 again, causing its extension to retract, which causes the fixing ring 16 to descend, fixing the outer cover between the fixing ring 16 and the feed inlet of hopper 1. The tying rope at the bottom of the ton bag is then untied, and the alloy enters hopper 1 through the feed inlet of hopper 1 from the ton bag's discharge port. Dust generated during the unloading process is blocked by the outer cover, reducing the risk of it entering the environment.

[0038] If the feed inlet of hopper 1 is located at a high position, an operating platform 5 can be installed on one side of hopper 1. For safety reasons, guardrails are installed on the edge of the operating platform 5, and a ladder 4 is installed between the operating platform 5 and the ground to facilitate the workers to go up and down.

[0039] Once the feed reaches a certain level, the valve plate 3 at the bottom of hopper 1 is opened, and the material enters the screen body 6 from the discharge port of hopper 1. To reduce dust pollution, the discharge port of hopper 1 and the feed port of screen body 6 are connected by a closed pipeline or conveying equipment. After the material enters screen body 6, screening begins. Screen body 6 is driven by a dual-vibration motor. In a more specific implementation, the dual-vibration motor 7 can be connected to screen body 6 via a force transmission plate and forms an inclination angle with screen body 6 in the vertical direction. The dual-vibration motor 7 rotates synchronously and in opposite directions, causing the material to perform a parabolic jumping motion on the screen surface inside screen body 6. After the material is sieved through the screen inside the sieve body 6, the powder is discharged from the powder outlet 8 into the powder receiving box, and the large pieces of material are discharged from the block material outlet 9 into the collection bag. After the discharge is completed, the worker unlocks the locking device on the wheels, then moves the trolley 10 along the discharge track to the end of the track. Then, the cantilever crane 12 is used to transfer the collection bag to the electronic scale for weighing. The proportion of the block material in the total material is calculated based on the weight of the material before sieving and the weight of the block material after sieving. After weighing, the cantilever crane 12 can be used to transfer the material to the transport trolley or other required location. The worker then returns the trolley 10 to its original position below the block material outlet 9 along the discharge track, locks the wheels, and places a new collection bag to prepare for the next sieving operation.

[0040] A dust collection port 11 is provided on the screen body 6. The dust collector 13 can collect the dust generated during the vibrating screening process through the fan and the dust collection port 11, avoiding the serious dust pollution problem of the original screening method. A filter screen is installed on the dust collection port 11 to prevent small particles of alloy material from entering the dust collector 13 and avoid material loss.

[0041] Example 2

[0042] like Figure 1 , Figure 3 As shown, a ton bag packaging ferroalloy screening device includes a hopper 1, which is fixedly installed on the ground by a support 2. A placement frame 15 is also provided on the support 2. The placement frame 15 includes a horizontal top frame and four legs, which are fixedly connected to the support 2. A crossbeam is also provided between the legs on the left and right sides. When the cantilever crane 12 lifts the ton bag above the inlet of the hopper 1, the placement frame 15 can support the bottom of the ton bag. A discharge outlet for discharging the ton bag is provided in the middle of the horizontal top frame, corresponding to the position of the inlet of the hopper 1. A bag breaker is provided at the inlet of the hopper 1, which includes a blade 19 for cutting open the bottom of the ton bag to allow the alloy material to fall out.

[0043] The discharge port of hopper 1 is connected to the inlet of screen body 6, and a valve plate 3 is provided at the bottom of hopper 1. Screen body 6 is a closed screen body, driven by dual vibration motors 7. The two motors of dual vibration motors 7 rotate synchronously and in opposite directions, so that the material can make parabolic jumping motion on the screen surface inside screen body 6. The discharge port of screen body 6 includes powder discharge port 8 and block material discharge port 9. A powder receiving box is provided below powder discharge port 8, and a collection bag is provided below block material discharge port 9. The collection bag is placed in the hopper of trolley 10. Trolley 10 is slidably installed on the discharge track, which is inclined at 10°. The end of the track near block material discharge port 9 is higher than the other end. The wheels of trolley 10 are equipped with locking devices to prevent trolley 10 from sliding during the collection of material in the collection bag.

[0044] The top of the screen body 6 is provided with a dust removal port 11, and a filter screen is installed on the dust removal port 11. The dust removal port 11 is connected to the dust collector 13 through a pipe. A fan is installed on the pipe between the dust removal port 11 and the dust collector 13. The dust collector 13 is one or a combination of bag dust collector, cyclone dust collector, and electrostatic dust collector.

[0045] It also includes a cantilever crane 12 and a weighing device 14 (such as an electronic scale), with the hopper 1, the receiving bag and the weighing device 14 all located within the working range of the cantilever crane 12.

[0046] The ton bag packaging ferroalloy screening device of this embodiment is particularly suitable for flat-bottomed ton bags. When unloading this type of ton bag, it is necessary to first use a bag breaker to cut open the bottom of the bag to form an unloading port.

[0047] The procedure for alloy screening using this embodiment is as follows:

[0048] The cantilever crane 12 is used to lift the ton bag containing ferrous alloy onto the placement frame 15. The distance between the lower surface of the horizontal top frame of the placement frame 15 and the upper surface of the feed inlet of the hopper 1 should be set as small as possible while meeting normal usage requirements, in order to minimize dust during unloading and prevent material from falling to the side. The bottom of the ton bag is cut open by a bag breaker installed at the feed inlet of the hopper 1. The bag breaker is existing technology. For example, in a more specific embodiment, a triangular blade 19 can be used to cut the bag. The blade 19 is mounted on a rotating shaft 18, which is rotatably connected to a crossbeam between the legs of the placement frame 15. A power device (e.g., a motor and a reducer) is also installed on one side of one of the crossbeams to drive the rotating shaft 18 to rotate. The power device drives the rotating shaft 18 to rotate, and the blade 19 rotates accordingly, cutting open the bottom of the ton bag.

[0049] To facilitate observation, maintenance or other operations by staff, an operating platform 5 can be set up on one side of the hopper 1. For safety reasons, guardrails are installed on the edge of the operating platform 5, and a ladder 4 is set between the operating platform 5 and the ground to facilitate staff going up and down.

[0050] Once the feed reaches a certain level, the valve plate 3 at the bottom of hopper 1 is opened, and the material enters the screen body 6 from the discharge port of hopper 1. To reduce dust pollution, the discharge port of hopper 1 and the feed port of screen body 6 are connected by a closed pipeline or conveying equipment. After the material enters screen body 6, screening begins. Screen body 6 is driven by a dual-vibration motor. In a more specific implementation, the dual-vibration motor 7 can be connected to screen body 6 via a force transmission plate and forms an inclination angle with screen body 6 in the vertical direction. The dual-vibration motor 7 rotates synchronously and in opposite directions, causing the material to perform a parabolic jumping motion on the screen surface inside screen body 6. After the material is sieved through the screen inside the sieve body 6, the powder is discharged from the powder outlet 8 into the powder receiving box, and the large pieces of material are discharged from the block material outlet 9 into the collection bag. After the discharge is completed, the worker unlocks the locking device on the wheels, then moves the trolley 10 along the discharge track to the end of the track. Then, the cantilever crane 12 is used to transfer the collection bag to the electronic scale for weighing. The proportion of the block material in the total material is calculated based on the weight of the material before sieving and the weight of the block material after sieving. After weighing, the cantilever crane 12 can be used to transfer the material to the transport trolley or other required location. The worker then returns the trolley 10 to its original position below the block material outlet 9 along the discharge track, locks the wheels, and places a new collection bag to prepare for the next sieving operation.

[0051] A dust collection port 11 is provided on the screen body 6. The dust collector 13 can collect the dust generated during the vibrating screening process through the fan and the dust collection port 11, avoiding the serious dust pollution problem of the original screening method. A filter screen is installed on the dust collection port 11 to prevent small particles of alloy material from entering the dust collector 13 and avoid material loss.

[0052] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A ton bag packaging ferroalloy screening device, comprising a hopper, characterized in that, The hopper is fixedly installed on the ground by a bracket. The bracket is also equipped with a placement frame. The placement frame has a discharge outlet for discharging ton bags. The discharge outlet corresponds to the feed inlet of the hopper. The discharge outlet of the hopper is connected to the feed inlet of the screen body. A valve plate is provided at the bottom of the hopper. The screen body is a closed screen body, driven by two vibrating motors. The two motors rotate synchronously and in opposite directions. The screen body has a powder outlet and a block outlet. A collection bag is installed at the block outlet. The collection bag is placed in the hopper of a trolley. The trolley is slidably installed on the discharge track. The wheels of the trolley are equipped with locking devices. A dust removal port is opened at the top of the screen body. The dust removal port is connected to the dust collector through a pipe. It also includes a cantilever crane and weighing equipment, with the hopper, collection bag and weighing equipment all located within the working range of the cantilever crane.

2. The ton bag packaging ferroalloy screening device as described in claim 1, characterized in that, A fixing ring is movably installed on the upper surface of the feed inlet of the hopper. The fixing ring is connected to the hopper by an electric telescopic rod, and there are at least two electric telescopic rods.

3. The ton bag packaging ferroalloy screening device as described in claim 1, characterized in that, A bag breaker is installed at the feed inlet of the hopper, and the bag breaker includes blades.

4. A ton bag packaging ferroalloy screening device as described in any one of claims 1-3, characterized in that, An operating platform is installed on one side of the hopper, with guardrails on the platform and a ladder between the platform and the ground.

5. A ton bag packaging ferroalloy screening device as described in any one of claims 1-3, characterized in that, A filter screen is installed on the dust removal port at the top of the screen body, and a fan is installed on the pipe connecting the dust removal port and the dust collector.

6. A ton bag packaging ferroalloy screening device as described in any one of claims 1-3, characterized in that, The dust collector is one or a combination of bag filters, cyclone filters, and electrostatic precipitators.

7. A ton bag packaging ferroalloy screening device as described in any one of claims 1-3, characterized in that, A powder receiving box is installed at the powder outlet.

8. A ton bag packaging ferroalloy screening device as described in any one of claims 1-3, characterized in that, The discharge track is inclined, with one end of the discharge track closer to the block material discharge port being higher than the other end.

9. The ton bag packaging ferroalloy screening device as described in claim 8, characterized in that, The inclination angle of the discharge track is 5°~10°.

10. A ton bag packaging ferroalloy screening device as described in any one of claims 1-3, characterized in that, The weighing equipment is an electronic platform scale.

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