A production system and production method for steelmaking powder granular material packaging products

Abstract

The present invention discloses a production system and a production method for packaging products for steelmaking powder and granular materials, and belongs to the field of metallurgical technology. The production system of the present invention includes an extrusion molding mechanism, a distributor, a closed welding mechanism and a flying shear, wherein the extrusion molding mechanism is used to process the steel strip to be processed into a U-shaped trough body, the distributor is used to fill the material into the U-shaped trough body; the closed welding mechanism is used to process the filled U-shaped trough body into a tube body structure with one end closed; the flying shear is used to shear and seal the tube body structure into multiple monomer sealed products. The production method of the present invention is to use the device of the above system to continuously load, seal and cut the powder and granular materials for steelmaking at its processing preparation site, so as to obtain high-strength, high-sealing and high-durability miniature monomer products, so that the packaging of the powder and granular materials for steelmaking is efficient, tightly sealed, high-density and durable, and effectively realizes the logistics process and completes the metallurgical function.

Description

Technical Field

[0001] The present invention relates to the technical field of metallurgical alloying, and more specifically to a production system and a production method for a product for packaging steelmaking powder and granular materials. Background Art

[0002] The materials required for the steelmaking process include molten iron, scrap steel and other main raw materials, as well as lime, dolomite and other bulk fluxes. Various auxiliary materials need to be added by throwing method, especially in the process of tapping from the primary furnace and refining in the refining furnace. Various auxiliary materials such as deoxidizers, slag regulators and alloying materials need to be added. Many of these original materials are in powdery or fine particle state and cannot be directly transported, stored and used. They must be pre-processed before use to facilitate the logistics process and complete the metallurgical function.

[0003] The more conventional pretreatment method is to weigh the powder and granular materials directly and put them into small bags and then into large bags, or directly use metal / paper barrels for packaging, transport them to the steelmaking site, unpack the large bags or open the barrels, and then manually throw or mechanically add them after metering; another pretreatment method is to add binders to the powder and granular materials and then pre-make them into balls and then bag them. The steelmaking site automatically measures and adds them through the silo on the feeding system. With the development of society and the progress of the industry, the requirements for occupational health, environmental protection, clean production, resource utilization, process automation and even intelligence in the steelmaking production process are becoming increasingly stringent. However, the following disadvantages exist: (1) Since the strength of the plastic layer of the existing packaging seal is very low, it is easy to be damaged during transportation and cannot be sealed. The material and the process environment will undergo physical and chemical reactions and change their properties, affecting the use effect of the material; (2) The packaging materials are all low-melting-point materials. After the material package is put into the material package, it will melt and break before it comes into contact with the molten steel. Due to the high temperature of the molten steel and the protrusion and expansion of the gas of the additives, coupled with the strong suction of the dust removal device, the fine particles of the material are lifted and entrained by the rising airflow during the addition process, and then escape with the airflow, resulting in material loss and environmental pollution; (3) The existing packaging after Most of the materials are in large aggregate packages, and there is no relative constraint between the materials. In the subsequent logistics, storage process and on-site preparation before use, the proportion of fine powder will continue to increase due to collision, extrusion and friction between the materials, and the material quasi-density will decrease, affecting the use effect of the materials; (4) The materials are pressed and briquetted, and most of them require the use of binders, etc. Some also need to be dried or baked, which increases the consumption of resources and energy; (5) In the existing packaging methods, on-site bag unpacking, barrel breaking and bag, barrel collection and processing inevitably involve a large amount of manual work, and the powder and granular materials used to assist the steelmaking process are packaged in thickened plastic woven bags and are put into the molten steel along with the materials. Not only can they not be used, but the smoke and dust after combustion is also harmful to the atmospheric environment and the health of the personnel on the steelmaking site.

[0004] After searching, there are also related disclosures about other packaging methods for steelmaking auxiliary materials. For example, the method of using cored wire is more common. For example, the Chinese patent application number is: 201210138111.X, the application date is: May 7, 2012, and the name of the invention is: a seamless aluminum-containing cored wire. The cored wire of this application is composed of an outer layer and an inner core, and the outer layer is coated on the outer surface of the inner core, wherein the outer layer is composed of a steel material with a thickness of 0.3 to 0.8 mm, and the inner core is composed of one or a combination of aluminum and calcium. The production process of the cored wire in this application is: first, pure calcium ingots are made into metal calcium wire on a wire making machine; the metal calcium wire is introduced into an aluminum strip with a U-shaped cross section, and then the U-shaped opening is sealed and welded to form an aluminum-calcium core; then the aluminum-calcium core is introduced into a steel shell with a cross section approximately U-shaped, which is composed of a steel strip, and then the U-shaped opening of the steel shell is welded and sealed.

[0005] In this application, the inner core of aluminum wire or calcium wire is wrapped with an outer layer, and the outer layer is also made of steel material. It is convenient to add it to the molten steel in the form of wire feeding during the steelmaking process. However, the above-mentioned cored wire method is not suitable for wrapping powdery and granular auxiliary materials, and the amount of addition cannot be effectively controlled during use. If an adhesive is used for pre-treatment, it will inevitably waste resources. Summary of the invention

[0006] 1. Problem to be solved

[0007] The purpose of the present invention is to fundamentally solve the problems of poor sealing, difficult to ensure the use effect of materials, inconvenient material transportation and use, and large manual workload in the existing powder and granular material packaging methods for steelmaking, and provide a production system and production method for steelmaking powder and granular material packaging products. The production system of the present invention can produce products that are convenient for direct alloying of molten steel, have high strength, tight sealing, and good storage durability. During storage, transportation and use, the materials will not spill, pulverize, or deteriorate, and have high density, which effectively improves their utilization rate and metal recovery rate, reduces environmental pollution and reduces resource consumption. The production method of the present invention is easy to operate, the product quality is better, the production efficiency is higher, and the economic benefits are good.

[0008] 2. Technical solution

[0009] In order to solve the above problems, the technical solution adopted by the present invention is as follows:

[0010] The present invention provides a production system for a product for packaging steelmaking powder granular materials, comprising an extrusion molding mechanism, a distributor, a closed welding mechanism and a flying shear, wherein the extrusion molding mechanism is used to process a fixed-width steel strip to be processed into a U-shaped trough body, the distributor is used to fill the U-shaped trough body with metallization reaction materials; the closed welding mechanism is used to process the filled U-shaped trough body into a tube body structure with one end closed; the flying shear is used to cut and seal the tube body structure into multiple single-body sealed products.

[0011] Furthermore, the extrusion molding mechanism is composed of at least one molding roller set, and its discharge end is connected to the closing mechanism through a pipe groove; the discharge port of the distributor is located above the pipe groove.

[0012] Furthermore, the closing mechanism includes a closing roller set, a welding machine and an extrusion roller. The closing roller set is at least one set, and its discharge end is connected to the welding machine. The discharge end of the welding machine is connected to the flying shear through the extrusion roller, the tube clamping roller and the flying shear in sequence.

[0013] Furthermore, it also includes a pinch roller group, which is used to clamp and convey the steel strip.

[0014] Furthermore, it also includes a functional layer coating mechanism, which is arranged between the pinch roller group and the extrusion molding mechanism and is used to perform functional coating on the steel strip before the steel strip is extruded and molded.

[0015] Furthermore, the flying shear includes a material extrusion and compacting mechanism, a material sealing monomer extrusion and sealing mechanism and a transverse cutting mechanism which are connected in sequence. The material extrusion and compacting mechanism is used to extrude and compact the tube structure; the material sealing monomer extrusion and sealing mechanism is used to perform monomer extrusion and sealing on the tube structure after extrusion and compaction; and the transverse cutting mechanism cuts the monomer after extrusion and sealing.

[0016] Furthermore, it also includes a collection bucket, which is located below the transverse cutting mechanism and is used to collect the cut product monomers.

[0017] The production method of a steelmaking powder granular material packaging product of the present invention adopts the above-mentioned production system for production, and comprises the following steps:

[0018] Step 1: Material preparation, steel belt pumping and anti-rust functional layer coating;

[0019] Step 2: forming a steel shell tubular U-shaped trough;

[0020] Step 3: Load the material into the U-shaped trough;

[0021] Step 4: longitudinally seal the U-shaped trough, compact the material, cut the monomers and synchronously seal the transverse end faces;

[0022] Step 5: Round the shape.

[0023] Furthermore, in step 2, the diameter range of the steel shell tubular U-shaped trough body is 16 to 55 mm; in step 4, the U-shaped trough body is longitudinally sealed by continuous folding or continuous welding.

[0024] Furthermore, in step 1, the thickness of the carbon steel sheet used to encapsulate the powdered and granular steelmaking auxiliary materials is 0.3 to 2.0 mm, and the side length or equivalent diameter of the processed product is in the range of 16 to 80 mm.

[0025] 3. Beneficial effects

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] (1) The production system of a steelmaking powder granular material packaging product of the present invention mainly includes an extrusion molding mechanism, a distributor, a closed welding mechanism and a flying shear. The products produced by the production system can, on the one hand, effectively improve the room temperature strength and toughness and plasticity of the packaging material, make the packaging layer firm, tight, undamaged and completely isolated from the environment, eliminate leakage in the logistics process, avoid the interaction between the material and the process environment and deterioration, and achieve cleanliness and environmental protection throughout the life cycle. On the other hand, it effectively improves the high temperature performance of the packaging material, reduces the rising and escaping of the metallurgical process materials and isolation by slag, and achieves the effective use of steelmaking powder granular auxiliary materials and the stability and improvement of metallurgical effects.

[0028] (2) The production system of the steelmaking powder granular material packaging product of the present invention adopts existing mature mechanical processing equipment and optimizes the combination form of the production system. The production line is compact, the equipment is light in weight, the structure is simple, the power consumption is low, the packaging effect is good, and the subsequent benefits are high. The products produced have high strength, tight sealing, good storage durability, no material spillage, no powdering, no deterioration, high density, improved utilization and yield, reduced environmental pollution and reduced resource consumption.

[0029] (3) The present invention provides a production system for packaging steelmaking powder and granular materials. The production system is an integrated unit, which is composed of mechanisms with the functions of material preparation, anti-rust layer coating, container preforming, material filling, material compaction and sealing, monomer cutting and shape rounding, etc., and can well achieve all the qualitative and quantitative goals required by the method of the present invention.

[0030] (4) The production system of the steelmaking powder and granular material packaging product of the present invention uses high-strength and high-elongation carbon steel as the shell material to wrap the powder and granular material. On the one hand, the powder and granular material does not need to add any binder, and can also be extruded at a relatively higher pressure to increase the overall density of the material, so that the quasi-density of the material block is greatly increased, and the effective utilization rate of the steelmaking powder and granular auxiliary material and its functional stability are improved. On the other hand, only carbon steel sheet is used as the only packaging material, and the packaging material is single. After use, it is directly converted into the supported process product without any adverse side effects, and the shell directly becomes pure molten steel after melting, which is fully utilized by the steelmaking process.

[0031] (5) The present invention provides a method for producing a product for packaging steelmaking powder and granular materials. By adopting the production system of the present invention to produce products, the whole life cycle of the use of steelmaking powder and granular auxiliary materials can be highly efficient, clean, convenient and automated. The powder and granular auxiliary materials are completely encapsulated in a single container with a high-strength, tightly sealed micro carbon steel shell. The aggregate of the container monomers has the physical properties of uniform bulk granular materials and can be easily packaged, transported, delivered, stored and used without any material spillage, dust and other pollution. The requirements of the steelmaking material system under intelligent manufacturing conditions can be fully met. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall structure of a production system for a steelmaking powder granular material packaging product of the present invention;

[0033] Figure 2 A schematic diagram of the appearance of a flat-end sealing product produced by the production system of the present invention;

[0034] Figure 3 It is a schematic diagram of the longitudinal section structure of the end umbilical seal product produced by the production system of the present invention.

[0035] In the figure:

[0036] 1. Product; 2. Steel strip; 3. Pinch roller set; 4. Functional layer coating mechanism; 5. Forming roller set; 6. Pipe trough; 7. Distributor; 8. Closed roller set; 9. Welding machine; 10. Extrusion roller; 11. Pipe body pinch roller; 12. Flying shear; 13. Aggregate barrel; 14. Steel coil rack.

[0037] 101. Welding seam; 102. Sealing port; 103. Straight section; 104. Curved section; 105. Powdered and granular materials. DETAILED DESCRIPTION

[0038] There are many defects in the packaging form and packaging method of auxiliary materials in the current steelmaking industry. During packaging, transportation, transportation, storage and use, on the one hand, due to the relatively poor sealing of the existing packaging method, it is very easy to be damaged during transportation, resulting in physical and chemical reactions between the materials and the environment to change the characteristics, affecting the use effect of the materials. On the other hand, most of the existing packaged materials are large aggregate packages, and there is no relative constraint between the materials. In the subsequent logistics, storage process and on-site preparation before use, the proportion of fine powder will continue to increase due to collision, extrusion and friction between the materials, and the quasi-density of the materials will decrease, which will further affect the use effect of the materials, and then cause the material utilization rate to be low during the alloying process of molten steel, and the metal recovery rate will also decrease. In addition, the existing materials are pressed and briquette, and most of them need to add binders, etc., so subsequent drying or baking operations are also required. At the same time, the strength, wear resistance and peeling resistance of the blocks after using the binder are often unsatisfactory, and these binders are often redundant for the steelmaking process, increasing resource and energy consumption, and are not conducive to environmental protection and occupational health.

[0039] To this end, the production system and production method of the present invention for packaging products of steelmaking powder and granular materials are superior to the existing known methods in terms of implementation principle and feasibility. The core of the feasibility is: continuously, strictly and tightly sealing and packaging the steelmaking powder auxiliary materials to form a sealed and enclosed monomer product with a high-strength micro carbon steel shell, and then directly putting the product into molten steel to alloy the steel liquid diameter.

[0040] In the process of direct alloying of molten steel, the metallization reactant is encapsulated in the inner cavity of the product as a reactor, and the surface of the product is made of carbon steel, which can maintain a certain reduction reaction sealing time in the high-temperature molten steel, so that the internal metallization self-reaction material (such as a mixture of metallization compounds, reducing agents and other reaction aids) can be reduced in advance. The outer shell of the product is made of high-strength, high-elongation low-carbon steel, etc., and its thickness is based on the reaction time determined by the kinetics of the reduction reaction process, and its sealing form is determined based on the atmosphere of the reduction reaction process, etc. Due to the use of the product of the present invention, the alloy element compound and the metallization reaction aid are mixed and packaged according to the formula in the manufacturing factory, and are always completely isolated from the process environment until the molten steel is added to the steel plant for melting and rupture, which effectively avoids the occurrence of the above-mentioned problems, thereby ensuring the use effect of the material.

[0041] The structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change of the proportion relationship or adjustment of the size, without affecting the effects and purposes that can be achieved by the present invention, should still fall within the scope of the technical content disclosed by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and so on quoted in this specification are only for the convenience of description, and are not used to limit the scope of implementation. The change or adjustment of their relative relationship should also be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0042] It should also be noted that the improvements of this patent mainly lie in the composition of the production system and the production method, in which each component mechanism and equipment in the production system can directly use existing equipment, which can be obtained by purchase or self-production, as long as it can achieve the functions of this patent. Therefore, this patent does not make any requirements on the specific structure of each component mechanism and equipment.

[0043] The present invention is further described below in conjunction with specific embodiments.

[0044] Example 1

[0045] like Figure 1 , Figure 2 As shown, a production system for a steelmaking powder granular material packaging product of this embodiment includes a steel coil rack 14, a functional layer coating mechanism 4, an extrusion molding mechanism, a distributor 7, a closed welding mechanism and a flying shear 12. The steel strip 2 is made of a carbon steel sheet with a thickness of 0.3 to 2.0 mm, which is wound on the steel coil rack 14 for standby use; during production, the steel strip 2 is transported to the processing production line by the pinch roller group 3, and the functional layer coating mechanism 4 is arranged between the pinch roller group 3 and the extrusion molding mechanism, and is used to functionally coat the steel strip 2 before the steel strip 2 is extruded. Among them, the extrusion molding mechanism is used to extrude the fixed-width steel strip 2 to be processed into a U-shaped trough body, and the distributor 7 is used to fill the material into the U-shaped trough body; the closed welding mechanism is used to process the filled U-shaped trough body into a tube structure with one end closed; the flying shear 7 is used to shear and seal the tube structure into multiple monomer sealing devices.

[0046] Specifically, the extrusion molding mechanism is composed of at least one molding roller group 5, and its discharge end is connected to the closing mechanism through the tube groove 6; in the present embodiment, there are specifically two, and in actual production, the number can be set according to actual needs. The discharge port of the distributor 7 is located above the tube groove 6. When the U-shaped trough body after extrusion molding enters the tube groove 6, it is transported to the bottom of the discharge port of the distributor 7 to start filling the material. The closing mechanism includes a closing roller group 8, a welding machine 9 and an extrusion roller 10. The closing roller group 8 is at least one group, and its discharge end is connected to the welding machine 9, which is used to longitudinally seal the U-shaped trough body after the material is filled. The discharge end of the welding machine 9 is connected to the flying shear 12 through the extrusion roller 10 and the tube body clamping roller 11 in turn. The flying shear 7 includes a material squeezing and compacting mechanism, a material sealing monomer squeezing and sealing mechanism and a transverse cutting mechanism which are connected in sequence. The material squeezing and compacting mechanism is used to squeeze and compact the tube structure, and then the material sealing monomer squeezing and sealing mechanism performs monomer squeezing and sealing on the squeezed and compacted tube structure, and finally the transverse cutting mechanism cuts the monomer after squeezing and sealing. In addition, a collecting bucket 13 is provided below the transverse cutting mechanism to collect the cut product monomers.

[0047] The above-mentioned equipment of the present invention all adopts existing mature processing equipment. By optimizing the design of the combination of devices on the production line, the production line is compact, the equipment is light in weight, simple in structure, low in power consumption, good in packaging effect, and high in subsequent benefits. At the same time, the products produced by the production system of the present invention can achieve high efficiency, cleanliness, convenience and automation in the whole life cycle of the use of steelmaking powder and granular auxiliary materials. The powder and granular auxiliary materials are completely encapsulated in a single container with a high-strength, tightly sealed micro carbon steel shell. The aggregate of the container monomers has the physical properties of uniform bulk granular materials and can be easily packaged, transported, delivered, stored and used. There will be no pollution such as material leakage and dust, which can fully meet the requirements of the steelmaking material system under intelligent manufacturing conditions.

[0048] The production method of the present invention comprises the following steps:

[0049] Step 1: material preparation, steel belt pumping and anti-rust functional layer coating; the thickness of the carbon steel sheet used to encapsulate powdered and granular steelmaking auxiliary materials is 0.3-2.0 mm, and the side length or equivalent diameter of the processed product is in the range of 16-80 mm. Specifically, the appearance of the packaged product can be designed according to actual needs, and the steel belt 2 is extruded and shaped by setting a forming roller group 5 with different functions, and pre-processed into an outer shell structure of different shapes, which can be a sphere, a cylinder, a straight polygon, a curved polygon, a straight curved polygon, or a combination of more than one. The specific form of the product in this embodiment is as follows: Figure 2As shown, the outer shell shape of the product is a combination of straight surfaces, curved surfaces and polygons, and the overall shape after processing is a flat sealed block product (the upper and lower surfaces of the packaging outer shell are composed of a straight section 103 and sealing ports 102 located on both sides of the straight section 103, and the inner diameter of the sealing port 102 is smaller than the inner diameter corresponding to the straight section 103. Furthermore, the sealing port 102 is also processed into a horizontal section, and the straight section 103 and the sealing port 102 are transitioned and connected by a curved section 104, and the specific structure and shape of the curved section 104 are not restricted). In this embodiment, the product is processed into a flat structure through sealing shearing. On the one hand, it is convenient to compact the reaction materials inside and discharge the gas in the inner cavity of the product. On the other hand, the compacted reaction materials will not collide, squeeze and rub against each other during transportation, thereby effectively avoiding the continuous increase in the proportion of fine powder and the decrease in the quasi-density of the material, thereby effectively ensuring the use effect of the reaction materials. As shown Figure 3 As shown, this product is Figure 2 The difference between the products is that the shape of the sealing port 2 is different. Figure 2 The middle one is a flat port seal. Figure 3 The sealing mouth is in the form of an umbilical ring to meet the needs of different packaging.

[0050] Step 2: forming a steel shell tubular U-shaped trough body; the diameter range of the steel shell tubular U-shaped trough body is 16 to 55 mm.

[0051] Step 3: Load the materials into the U-shaped trough; design the type and proportion of the materials according to actual needs, and pre-mix them evenly in the distributor 7.

[0052] Step 4: longitudinally seal the U-shaped trough, compact the material, cut the monomers and synchronously seal the transverse end faces; longitudinally seal the U-shaped trough by continuous folding or continuous welding.

[0053] Step 5: Rounding the shape: Use existing mature trimming equipment to round the transverse end surface of the cut packaging unit.

[0054] When the production system of this embodiment is processed, the processing flow is as follows: the steel strip 2 is continuously extracted and pushed by the clamping roller group 3, and the anti-corrosion functional coating can be continuously and synchronously applied by the functional layer coating mechanism 4, and then the moving steel strip 2 is preformed into a tubular U-shaped trough container by the functional layer coating mechanism 5. The materials to be filled are pre-mixed in the distributor 7, and the powdered and granular materials are continuously quantitatively filled into the tubular trough. After filling, the closed roller group 8 is used for folding or the welding machine 9 is used for continuous longitudinal sealing (i.e., forming a U-shaped trough container). Figure 2The long strip weld 101 distributed transversely in the middle is longitudinally sealed, and then the flying shear 12 with a grooved or V-shaped extrusion head and a shearing blade cuts the tubular inclusion into segments according to a fixed length, and extrude and seal the tubular inclusion to form a dense block monomer for material packaging. The trimming equipment is used to round the transverse end surface of the cut packaging monomer to obtain a high-sealing product, which consists of a micro-monomer sealed packaging shell and a powdered granular material 105 filled in the inner cavity of the packaging shell. The material includes any powdered single material or multiple mixed materials used in the metallurgical process.

[0055] Example 2

[0056] This embodiment adopts the production system in Embodiment 1 for processing, and the specific process is: silicon powder with a particle size of 0 to 0.5 mm, lime powder and molybdenum oxide with a grade of 95% are mixed and ground evenly in a weight ratio of 1:1.5:2, and the mixed and ground premix is ​​conveyed to a premix hopper through a conveying pipeline, and a distributor is provided at the lower part of the hopper. First, a carbon steel sheet with a width of 104mm and a thickness of 1.2mm is processed into a U-shaped trough with a diameter of 30mm by a forming roller group; the premix is ​​evenly poured into the trough from the outlet of the distributor according to a certain quantity; then the U-shaped trough is squeezed into a tube with a longitudinal gap by a closed roller group; the longitudinal gap of the tube is closed by a welding machine and then continued to move forward to the flying shear device where it is transversely sheared by a V-shaped shear blade and sealed into a umbilical-shaped closed packaging monomer with a length of 60mm at the end; a flattening device is then used to round the umbilical seal of the packaging monomer; the rounded packaging monomer is input into the collection silo; the material is weighed and loaded into ton bags for shipment.

[0057] Example 3

[0058] This embodiment adopts the production system in Embodiment 1 for processing, and the specific process is as follows: FeSi65 ferrosilicon powder with a particle size of 0 to 12 mm is transported to the feed hopper, and a distributor is provided at the bottom of the hopper. First, a carbon steel sheet with a width of 150 mm and a thickness of 0.5 mm is processed into a U-shaped trough with a diameter of 45 mm using a forming roller set; when the trough passes under the distributor, the distributor uniformly pours the premix into the trough according to a quantitative quantity; then a closed roller set is used to squeeze the U-shaped trough and fold it longitudinally to form a closed tube; when the tube continues to move forward to the flying shear device, it is transversely sheared by the grooved shear blade and sealed into a flat-end sealed package monomer with a length of 80 mm (i.e. Figure 2 The flat sealing mouth of the packaged monomer is rounded by a flattening device; the rounded packaged monomer is input into a collecting silo; the material is weighed and loaded into a dump truck for shipment.

[0059] Example 4

[0060] This embodiment adopts the production system in Embodiment 1 for processing, and the specific process is: silicon powder with a particle size of 0 to 0.5 mm, lime powder and molybdenum oxide with a grade of 95% are mixed and ground evenly in a weight ratio of 1:1.5:2, and the mixed and ground premix is ​​conveyed to a premix hopper through a conveying pipeline, and a distributor is provided at the lower part of the hopper. First, a carbon steel sheet with a width of 185mm and a thickness of 2.0mm is processed into a U-shaped trough with a diameter of 55mm by a forming roller group; the premix is ​​evenly poured into the trough from the outlet of the distributor according to a certain quantity; then the U-shaped trough is squeezed into a tube with a longitudinal gap by a closed roller group; the longitudinal gap of the tube is closed by a welding machine and then continues to move forward to the flying shear device where it is transversely sheared by a V-shaped shear blade and sealed into an umbilical-shaped closed packaging monomer with a length of 80mm at the end; a flattening device is then used to round the umbilical seal of the packaging monomer; the rounded packaging monomer is input into the collection silo; the material is weighed and loaded into ton bags for shipment.

[0061] Example 5

[0062] This embodiment adopts the production system in embodiment 1 for processing, and the specific process is: the carbon powder with a particle size of 0 to 0.5 mm is transported to the premix hopper through a conveying pipeline, and a distributor is provided at the bottom of the hopper. First, a carbon steel sheet with a width of 60 mm and a thickness of 0.3 mm is processed into a U-shaped trough with a diameter of 16 mm by a forming roller group; the trough body uniformly pours the premix into the trough body according to a certain quantity from the outlet of the distributor; then the U-shaped trough body is squeezed into a tube body with a longitudinal gap by a closed roller group; the longitudinal gap of the tube body is closed by a welding machine and continues to move forward to the flying shear device, where it is transversely sheared by a V-shaped shear blade and sealed into a umbilical-shaped sealed package monomer with a length of 60 mm at the end; then a flattening device is used to round the umbilical seal of the package monomer; the rounded package monomer is input into the collection silo; the material is weighed and loaded into a ton bag for shipment.

[0063] The present invention has been described in detail above in conjunction with specific exemplary embodiments. However, it should be understood that various modifications and variations may be made without departing from the scope of the present invention as defined by the appended claims. The detailed description and the accompanying drawings should be considered only as illustrative and not restrictive, and if there are any such modifications and variations, they will fall within the scope of the present invention described herein. In addition, the background technology is intended to illustrate the current status and significance of the research and development of the present technology and is not intended to limit the present invention or the application field of the present application and the present invention.

Claims

1. A production system for packaging products of steelmaking powder and granular materials, characterized in that: It includes an extrusion molding mechanism, a distributor, a closed welding mechanism and a flying shear, wherein the extrusion molding mechanism is used to process the fixed-width steel strip to be processed into a U-shaped trough body, the distributor is used to fill the metallization reaction material into the U-shaped trough body; the closed welding mechanism is used to process the filled U-shaped trough body into a tube body structure with one end closed; the flying shear is used to shear and seal the tube body structure into multiple single-body sealed products; The extrusion molding mechanism is composed of at least one molding roller set, and its discharge end is connected to the closing mechanism through a pipe groove; the discharge port of the distributor is located above the pipe groove; The closing mechanism comprises a closing roller set, a welding machine and an extrusion roller. The closing roller set is at least one set, and its discharge end is connected to the welding machine. The discharge end of the welding machine is connected to the flying shear through the extrusion roller, the pipe body pinch roller and the flying shear in sequence. It also includes a functional layer coating mechanism, which is arranged between the pinch roller group and the extrusion molding mechanism and is used to perform functional coating on the fixed-width steel strip before the fixed-width steel strip is extruded; The flying shear comprises a material extrusion and compacting mechanism, a material sealing monomer extrusion and sealing mechanism and a transverse cutting mechanism which are connected in sequence. The material extrusion and compacting mechanism is used to extrude and compact the tube structure; the material sealing monomer extrusion and sealing mechanism is used to perform monomer extrusion and sealing on the tube structure after extrusion and compaction; the transverse cutting mechanism cuts the monomer after extrusion and sealing.

2. A production system for packaging steel powder granular materials according to claim 1, characterized in that: It also includes a pinch roller group, which is used to clamp and convey the fixed-width steel strip.

3. A production system for packaging steel powder granular materials according to claim 2, characterized in that: It also includes a material collection bucket, which is located below the transverse cutting mechanism and is used to collect the cut product monomers.

4. A method for producing a product for packaging steelmaking powder granular materials, characterized in that: The production system according to any one of claims 1 to 3 is used for production, comprising the following steps: Step 1: Material preparation, steel belt pumping and anti-rust functional layer coating; Step 2: forming a steel shell tubular U-shaped trough; Step 3: Loading materials into the U-shaped trough; Step 4: longitudinally seal the U-shaped trough, compact the material, cut the monomers and synchronously seal the transverse end faces; Step 5: Round the shape.

5. The method for producing a steelmaking powder granular material packaging product according to claim 4, characterized in that: In step 2, the diameter of the steel shell tubular U-shaped trough body ranges from 16 to 55 mm; in step 4, the U-shaped trough body is longitudinally sealed by continuous folding or continuous welding.

6. The method for producing a steelmaking powder granular material packaging product according to claim 5, characterized in that: In step 1, the thickness of the carbon steel sheet used to encapsulate the powdered and granular steelmaking auxiliary materials is 0.3 to 2.0 mm, and the side length or equivalent diameter of the processed product ranges from 16 to 80 mm.

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