Rolling forming machine and briquetting system

Abstract

The utility model belongs to the technical field of roll forming equipment, and particularly relates to a roll forming machine and a briquetting system. The two groups of compression roller assembly bodies are arranged on the main frame in parallel, each group of compression roller assembly body comprises a compression roller and a roller skin sleeved on the compression roller, at least two groups of forming groove groups are arranged on the roller skin in parallel along the axial direction, and a roller skin separation area is arranged between the adjacent forming groove groups; and the feeding device is arranged on the main frame, is matched between the two groups of compression roller assemblies, and comprises at least two groups of screw feeders which are the same as the forming groove groups in number and are correspondingly arranged in parallel. Under the condition that the size of equipment is not greatly changed, the unit time capacity of the rolling forming machine can be effectively improved, and the technological requirements of large-scale shaft furnace briquetting forming are met; and under the same productivity, the number of equipment can be reduced, the configuration of a briquetting system is simplified, and the occupied area is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of roll forming equipment, and particularly relates to a roll forming machine and a briquetting system. Background Art

[0002] In the crushing or granulated material forming links of many industries such as metallurgy, cement, and mines, roll press equipment is often required to meet the production process requirements (such as hot briquetting for direct reduced iron). The feeding device of the existing hot briquetting equipment for direct reduced iron usually has only one feeding port. Correspondingly, there is only one set of forming grooves on the roll skin of the pressure roll, resulting in a relatively low hourly production capacity of a single device.

[0003] To meet the product briquetting requirements of large-scale shaft furnaces, usually two methods are adopted: one is to increase the number of briquetting devices, often requiring multiple sets of briquetting systems (each set of briquetting systems includes 1 roll forming machine and 1 elevator), resulting in a large number of equipment configurations, complex systems, and large floor areas; the other is to increase the hourly production capacity of a single device. Usually, the diameter of the pressure roll is increased to increase the output. However, if the output doubles, the diameter of the pressure roll also needs to double at the same rotational speed, resulting in "huge" equipment size and greatly increased costs. Therefore, the increase in production capacity is limited. In addition, if simply changing the number of groove columns in a single set of forming groove groups to achieve the purpose of increasing production capacity is often not feasible. Since the incoming material is high-temperature granular material, after the width of a single set of forming groove groups increases, the spiral feeding effect is poor, resulting in loose and poorly compacted briquettes, which are easily oxidized quickly, so it is difficult to meet the quality requirements of briquettes. Summary of the Utility Model

[0004] In view of the above-mentioned deficiencies of the prior art, the purpose of the present utility model is to provide a roll forming machine and a briquetting system, which are used to solve the technical problem that the roll forming machine in the prior art is difficult to meet the product briquetting requirements of large-scale shaft furnaces.

[0005] To achieve the above purpose and other related purposes, the technical solution of the present utility model is as follows:

[0006] A roll forming machine, comprising:

[0007] A main frame;

[0008] Two groups of pressure roll assemblies, which are arranged in parallel on the main frame. Each group of pressure roll assemblies includes a pressure roll and a roll skin sleeved on the pressure roll. At least two sets of forming groove groups are arranged side by side along the axial direction on the roll skin, and a roll skin separation area is arranged between adjacent forming groove groups;

[0009] The feeding device is arranged on the main frame and is adapted between two groups of the roll assembly bodies, and includes at least two groups of screw feeders which are the same in number as and arranged side by side corresponding to the forming groove groups.

[0010] Optionally, a material blocking assembly is arranged at the joint of the feeding device and the roll assembly body. The material blocking assembly has an isolation part which is located in the roll skin separation area, so that materials enter the corresponding forming groove groups under the action of the screw feeders.

[0011] Optionally, each group of the forming groove groups includes at least two columns of full-circle grooves, and the center of each group of the forming groove groups is consistent with the center of the corresponding group of screw feeders.

[0012] Optionally, the roll skin of each group of the roll assembly bodies includes a plurality of independent roll skin parts arranged along the circumferential direction of the roll. Each roll skin part is connected to the roll through a fixing pin, and a first through hole is formed at the mating clearance between adjacent roll skin parts; press rings are arranged on both sides of the roll skin of each group of the roll assembly bodies, and a plurality of second through holes are formed along the circumferential direction on the press rings. A locking piece is inserted through the first through hole and the second through hole to connect the press ring and the roll skin.

[0013] Optionally, a screw rod is arranged inside each group of the screw feeders, and each group of the screw feeders is provided with a main feeding port and a powder feeding port.

[0014] Optionally, the main frame includes an upper main beam, a lower main beam, main columns, a first upper cross beam, a second upper cross beam and a lower cross beam. The two main columns are symmetrically connected between the upper main beam and the lower main beam, and the two ends of each main column are respectively connected to the upper main beam and the lower main beam through column pins; the first upper cross beam and the second upper cross beam are both arranged on the top of the upper main beam, the feeding device is located between the first upper cross beam and the second upper cross beam, and the two lower cross beams are symmetrically arranged at the bottom of the lower main beam.

[0015] Optionally, each group of the roll assembly bodies further includes two bearing seats respectively arranged at the front and rear ends of the roll. A hydraulic cylinder is arranged on the main frame. The two bearing seats of a group of the roll assembly bodies are connected to the adjacent group of main columns, and the two bearing seats of the other group of the roll assembly bodies are connected to the adjacent other group of main columns through the hydraulic cylinder.

[0016] Optionally, a sealing cover and an air inlet are further arranged on the main frame. The sealing cover is located between the two groups of bearing seats and covers the periphery of the roll skin of the two groups of the roll assembly bodies; the air inlet is located at the top of the main frame and is used for introducing inert gas.

[0017] Optionally, the roll forming machine further includes a coupling, a speed reducer, and a driving motor. The driving motor is connected to the two couplings through the speed reducer. The two couplings are respectively connected to two groups of pressure rollers and drive the two groups of pressure rollers to rotate synchronously in opposite directions.

[0018] Based on the same concept, the present application also provides a briquetting system, which includes the roll forming machine as described above, and further includes a disintegrator, a vibrating screening device, and a hoist. Specifically:

[0019] The disintegrator is arranged downstream of the roll forming machine and is used to break the continuous briquettes extruded by the roll forming machine into individual briquettes.

[0020] The vibrating screening device is arranged downstream of the disintegrator and is used to screen the broken briquettes into finished briquettes and powder. It has a finished briquette outlet for outputting the finished briquettes and a powder outlet for outputting the powder.

[0021] The hoist is used to return the powder screened by the vibrating screening device to the feeding device of the roll forming machine. It has a horizontal section and a vertical section. The horizontal section is provided with a feeding pipe, and the feeding pipe is connected to the powder outlet of the vibrating screening device to receive the screened powder. The vertical section is provided with a discharging pipe, and the discharging pipe is connected to the powder feeding ports of the two groups of screw feeders through a tee.

[0022] The main feeding ports of each group of screw feeders of the roll forming machine are respectively connected to the raw material feeding pipes, and the roll forming machine presses the materials entering the main feeding ports and the powder feeding ports into briquettes.

[0023] As described above, the present utility model has the following beneficial effects:

[0024] Through a reasonable roll system design, the forming groove groups on the roll skins of the pressure rollers are set as more than two independent groove groups with roll skin isolation areas. Correspondingly, the feeding device is set as multiple groups of screw feeders with the same number as the forming groove groups, so that the materials enter their respective corresponding forming groove groups through independent screw feeders for briquetting. Without much change in the equipment size, it can effectively improve the unit time production capacity of the roll forming machine and meet the process requirements of large-scale shaft furnace briquetting. Under the same production capacity, the number of equipment can be reduced, the configuration of the briquetting system can be simplified, and the floor area can be reduced. Description of the Drawings

[0025] Figure 1 It is the main structural view of the roll forming machine according to the embodiment of the present utility model;

[0026] Figure 2 It is the left structural view of the roll forming machine according to the embodiment of the present utility model;

[0027] Figure 3 It is the top view of the structure of the roll forming machine according to the embodiment of the present utility model;

[0028] Figure 4 It is the top view of the roll system assembly of the roll forming machine according to the embodiment of the present utility model;

[0029] Figure 5 It is the partial structure diagram of the feeding device of the roll forming machine according to the embodiment of the present utility model;

[0030] Figure 6 It is the partial structure diagram of the roll skin assembly of the roll forming machine according to the embodiment of the present utility model;

[0031] Figure 7 It is the cross-sectional view of the roll skin assembly of the roll forming machine according to the embodiment of the present utility model;

[0032] Figure 8 It is the structure diagram of the pressing block system according to the embodiment of the present utility model;

[0033] Figure 9 It is the partial structure diagram in the K direction of the pressing block system according to the embodiment of the present utility model.

[0034] Explanation of reference numerals

[0035] 100 - Roll forming machine;

[0036] 10 - Main frame; 11 - First upper cross beam; 12 - Upper main beam; 13 - Main column; 14 - Lower main beam; 15 - Second upper cross beam; 16 - Lower cross beam; 17 - Middle column; 18 - Column pin;

[0037] 20 - Roll assembly; 21 - Roll; 22 - Roll skin; 22a - Roll skin part; 221 - Forming groove group; 222 - Roll skin separation area; 23 - Pressure ring; 24 - Locking part; 25 - Fixed pin; 26 - Bearing seat;

[0038] 30 - Feeding device; 31 - Screw feeder; 311 - Screw rod; 312 - Main feeding port; 313 - Powder feeding port; 32 - Material blocking assembly; 321 - Isolation part; 33 - Mounting seat;

[0039] 40 - Air inlet; 50 - Sealing cover; 60 - Coupling; 70 - Reducer; 80 - Driving motor; 90 - Hydraulic cylinder;

[0040] 200 - Disintegrator;

[0041] 300 - Vibration screening device; 301 - Finished product pressing block outlet; 302 - Powder outlet;

[0042] 400 - Hoist; 401 - Horizontal section; 402 - Vertical section; 403 - Feed pipe; 404 - Discharge pipe; 405 - Three-way pipe; 405a - First branch pipe; 405b - Second branch pipe;

[0043] 500 - Raw material feed pipe. Detailed implementation mode

[0044] The following specific embodiments illustrate the implementation mode of the present invention. Those familiar with this technology can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

[0045] It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those familiar with this technology to understand and read, and are not used to limit the limited conditions under which the present invention can be implemented. Therefore, they do not have technical substantive significance. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed in the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" cited in this specification are only for the convenience of clear narration, and are not used to limit the scope within which the present invention can be implemented. The change or adjustment of their relative relationships, without substantial change in the technical content, should also be regarded as the scope within which the present invention can be implemented.

[0046] In order to be able to describe the present invention in detail, the roll forming machine of the present invention will be specifically described next:

[0047] Please refer to Figures 1 to 5 As shown, the present invention provides a roll forming machine, including: a main frame 10, two groups of roll assemblies 20, and a feeding device 30. Among them, the two groups of roll assemblies 20 are arranged in parallel on the main frame 10. Each group of roll assemblies 20 includes a roll 21 and a roll skin 22 sleeved on the roll 21. At least two sets of forming groove groups 221 are arranged in parallel along the axial direction on the roll skin 22, and a roll skin separation area 222 is arranged between adjacent forming groove groups 221; the feeding device 30 is arranged on the main frame 10 and is adapted between the two groups of roll assemblies 20, and includes at least two sets of screw feeders 31 that are the same in number as the forming groove groups 221 and are arranged in parallel correspondingly.

[0048] Specifically, the main frame 10 is used to carry the pressure roller assembly 20 and the feeding device 30. Two groups of pressure roller assemblies 20 are arranged in parallel on the main frame 10. The feeding device 30 is arranged between the two groups of pressure roller assemblies 20 through the mounting seat 33, and is used to press and form the material fed by the feeding device 30 through the cooperation of the pressure rollers 21 of the two groups of pressure roller assemblies 20. Each group of pressure roller assemblies 20 includes a rotating pressure roller 21 and a roller skin 22 sleeved on the pressure roller 21. The roller skin 22 not only plays a role in protecting the pressure roller 21, but also realizes the pressing of the material into a specific shape through the forming groove group 221 arranged thereon. At least two groups of forming groove groups 221 arranged on the roller skin 22 correspond to the screw feeder 31 of the feeding device 30, so that the material can enter the corresponding forming groove group 221 through the screw feeder 31. Among them, the forming groove groups 221 on the two groups of pressure roller assemblies 20 correspond to each other, which is convenient for pressing and forming through cooperation. The screw feeder 31 evenly transports the material into the corresponding forming groove group 221 through rotational movement, ensuring that each forming groove group 221 can obtain sufficient material for pressing.

[0049] Through reasonable roll system design, the roller skin 22 on the pressure roller 21 is set as more than two independent groups of forming groove groups 221 with a roller skin isolation area. Correspondingly, the feeding device 30 is set as a plurality of screw feeders 31 with the same number as the forming groove groups 221, so that the material enters the corresponding forming groove groups 221 respectively through independent screw feeders 31 for pressing and forming. Compared with the traditional roll press 100 with a single group of groove groups and a corresponding single screw feeder 31, without changing the radial dimension of the pressure roller 21 and the rotation speed of the pressure roller 21, the output per unit time of the pressed block can be doubled, thus greatly improving the production capacity per unit time of a single roll press 100 and meeting the process requirements of large-scale pressed block forming in shaft furnaces; under the same production capacity, using this roll press 100 can reduce the number of equipment, simplify the system configuration, and reduce the floor area.

[0050] Refer to Figure 5 , in some embodiments, a material blocking component 32 is arranged at the cooperation position of the feeding device 30 and the pressure roller assembly 20. The material blocking component 32 has an isolation component 321. The isolation component 321 is located in the roller skin separation area 222, so that the material enters the corresponding forming groove group 221 under the action of the screw feeder 31. Specifically, the material blocking component 32 is arranged on the mounting seat 33. The material blocking component 32 has an isolation component 321 located in the roller skin separation area 222. The adjacent forming groove groups 221 are separated into independent isolation areas through the isolation component 321, realizing the precise guiding and effective isolation of the material, ensuring that the material can accurately enter the corresponding forming groove groups 221 respectively under the pushing of the screw feeder 31, improving the accuracy and consistency of forming, and improving the production efficiency.

[0051] Refer to Figure 5 In the above embodiment, each set of the forming groove groups 221 includes at least two columns of full-circle grooves, and the center of each set of the forming groove groups 221 coincides with the center of the corresponding set of the screw feeders 31. Specifically, by setting each set of the forming groove groups 221 to include at least two columns of full-circle grooves, and the two columns of grooves corresponding to each other, this layout not only increases the contact area between the material and the roller skin 22, improves the forming efficiency, but also ensures the uniform stress of the material during the forming process, which is beneficial to briquetting. In other embodiments, the number of groove arrangements in each set of the forming groove groups 221 can also be adjusted according to actual needs. More importantly, the center of each set of the forming groove groups 221 coincides with the center of the corresponding set of the screw feeders 31. This precise alignment design enables the screw feeder 31 to directly feed the material into the center position of the forming groove group 221, avoiding the deviation and waste of the material during the conveying process, and ensuring that the material can be accurately filled into each forming groove group 221. Due to the precise alignment of the forming groove group 221 and the screw feeder 31, the material can quickly and stably enter each set of the forming groove groups 221 during the conveying process, and is efficiently briquetted under the rotation of the pressure roller 21. This design not only improves the forming speed, but also ensures the dimensional accuracy and shape consistency of the formed product. At the same time, the design of multiple columns of full-circle grooves also increases the output of a single forming, further improving the production efficiency.

[0052] Refer to Figure 6 and Figure 7, it should be noted that the roll skin 22 of each set of the roll assembly 20 includes a plurality of independently arranged roll skin parts 22a arranged circumferentially along the roll 21. Each roll skin part 22a is connected to the roll 21 by a fixing pin 25, and a first through hole is provided at the mating gap between adjacent roll skin parts 22a; press rings 23 are arranged on both sides of the roll skin 22 of each set of the roll assembly 20, and a plurality of second through holes are circumferentially formed in the press ring 23. The locking member 24 is passed through the first through hole and the second through hole to connect the press ring 23 to the roll skin 22. Specifically, the roll skin 22 of each set of the roll assembly 20 is composed of a plurality of independently arranged roll skin parts 22a arranged circumferentially along the roll 21, and adjacent roll skin parts 22a are adapted to each other. This modular design makes the replacement, maintenance or upgrade of the roll skin 22 more convenient. When a certain roll skin part 22a is worn or damaged, there is no need to replace the entire roll skin 22, and only the corresponding roll skin part 22a needs to be replaced, which greatly reduces the maintenance cost and downtime. Each roll skin part 22a is connected to the roll 21 by a fixing pin 25. This connection method not only ensures the stability of the roll skin part 22a during high-speed rotation, but also facilitates installation and disassembly. The press rings 23 arranged on both sides of the roll skin 22 correspond to the first through holes of the roll skin parts 22a through a plurality of second through holes formed circumferentially thereon. By passing the locking member 24 (such as bolts, pins, etc.) through them, the tight connection between the press ring 23 and the roll skin 22 is realized. This design not only enhances the overall rigidity of the roll skin 22, but also improves the anti-deformation ability of the roll skin 22 under high-speed rotation and high pressure, ensuring the stability and accuracy of molding. Since the roll skin 22 adopts a modular design and each roll skin part 22a can be independently replaced and adjusted, the parameters such as the shape, size and material of the roll skin 22 can be flexibly adjusted according to different production requirements and material characteristics. This controllability enables the roll press forming machine 100 to more widely adapt to different types of materials and product requirements, improving the versatility and flexibility of the equipment.

[0053] Refer to Figure 2, in the above embodiment, a screw rod 311 is disposed inside each of the screw feeders 31, and each of the screw feeders 31 is provided with a main feed inlet 312 and a powder feed inlet 313. Specifically, the screw rod 311 is the core component of the screw feeder 31, and through its rotational movement, the material is axially conveyed to the discharge port. The spiral channel formed between the spiral blades of the screw rod 311 and the inner wall of the screw feeder 31 ensures that the material can be continuously and stably advanced forward. The main feed inlet 312 and the powder feed inlet 313 are respectively disposed on both sides of the screw feeder 31. The main feed inlet 312 is used to receive the material from the production line, and the powder feed inlet 313 is used to receive the returned powder formed after the briquette finished product is broken. By simultaneously providing the main feed inlet 312 and the powder feed inlet 313, synchronous feeding of multiple materials can be achieved, reducing the material conversion and waiting time, and improving the production efficiency. In addition, for the production process that requires mixing multiple materials, this design can also ensure the uniformity and consistency of the material mixing.

[0054] Refer to Figure 2, in some embodiments, the main frame 10 includes an upper main beam 12, a lower main beam 14, main columns 13, a first upper cross beam 11, a second upper cross beam 15, and a lower cross beam 16. The two main columns 13 are symmetrically connected between the upper main beam 12 and the lower main beam 14, and both ends of each main column 13 are respectively connected to the upper main beam 12 and the lower main beam 14 by column pins 18; the first upper cross beam 11 and the second upper cross beam 15 are both arranged on the top of the upper main beam 12, the feeding device 30 is located between the first upper cross beam 11 and the second upper cross beam 15, and the two lower cross beams 16 are symmetrically arranged at the bottom of the lower main beam 14. Specifically, the upper main beam 12 and the lower main beam 14 are arranged along a first direction (the first direction is perpendicular to the axis of the pressing roller 21), the first upper cross beam 11 and the second upper cross beam 15 are arranged along a second direction (the second direction is parallel to the axis of the pressing roller 21), and the main columns 13 are arranged along the vertical direction. In addition, a middle column 17 is also arranged between the two main columns 13 to improve the support strength. The two main columns 13 are symmetrically connected between the upper main beam 12 and the lower main beam 14, and this design ensures the overall stability of the main frame 10. The main columns 13, as the main load-bearing structures, can effectively disperse and bear the weight from the upper equipment and materials. The two lower cross beams 16 are symmetrically arranged at the bottom of the lower main beam 14, further enhancing the stability and load-bearing capacity of the bottom of the main frame 10; the lower cross beams 16, as auxiliary support structures, can effectively disperse and bear the reaction force from the ground and maintain the overall balance of the main frame 10. Both ends of each main column 13 are respectively connected to the upper main beam 12 and the lower main beam 14 by column pins 18. This connection method not only simplifies the installation process but also enhances the strength and stability of the connection part, ensuring the tight and reliable connection between the column and the main beam. Moreover, when the column pins 18 between the main column 13 and the upper main beam 12 are removed, the main column 13 can rotate around the center of the column pin 18 between the main column 13 and the lower main beam 14, facilitating the movement of the internal bearing seat 26 and the assembly of the pressing roller 21.

[0055] Refer to Figure 4, in the above-described embodiment, each set of the roll assembly 20 further includes two bearing blocks 26 respectively disposed at the front and rear ends of the roll 21. A hydraulic cylinder 90 is provided on the main frame 10. The two bearing blocks 26 of one set of the roll assembly 20 are connected to the adjacent set of the main columns 13, and the two bearing blocks 26 of the other set of the roll assembly 20 are connected to the adjacent other set of the main columns 13 through the hydraulic cylinder 90. Specifically, one set of the roll assembly 20 is configured as a fixed roll assembly 20, and the bearing block 26 of the fixed roll assembly 20 is connected to the adjacent main column 13 in a mating manner; the other set of the roll assembly 20 is configured as a movable roll assembly 20, and the bearing block 26 of the movable roll assembly 20 is connected to the adjacent main column 13 through the hydraulic cylinder 90 in a mating manner. By adjusting the pressure of the hydraulic cylinder 90, the pressure between the rolls 21 can be controlled to ensure good quality of the briquettes.

[0056] Refer to Figures 2 to 4 , it can be understood that a seal cover 50 and an air inlet 40 are further provided on the main frame 10. The seal cover 50 is located between the two bearing blocks 26 and covers the periphery of the roll skins 22 of the two sets of the roll assemblies 20; the air inlet 40 is located at the top of the main frame 10 and is used for introducing an inert gas. Specifically, by providing the seal cover 50, the direct contact between the roll skin 22 and the external environment is effectively isolated, preventing pollutants such as dust and impurities in the air from entering between the roll skin 22 and the material, ensuring the purity of the material forming and the service life of the roll skin 22. The seal cover 50 also helps to maintain a relatively closed and stable forming environment. During the roll forming process, the material may generate fine dust or debris due to extrusion. The seal cover 50 can prevent the diffusion of these dust or debris, keep the working area clean and tidy, and also play a role in safety protection. The air inlet 40 is located at the top of the main frame 10 and is used for introducing an inert gas (such as nitrogen, argon, etc.). There are two air inlets 40, which are arranged diagonally and are respectively located on the first upper crossbeam 11 and the second upper crossbeam 15. By introducing an inert gas through the air inlet 40, the gas environment required for the roll forming machine 100 to form briquettes can be ensured, further protecting the material and the roll skin 22 from adverse effects such as oxidation and corrosion.

[0057] Refer to Figure 1 and Figure 3, Understandably, the roll forming machine 100 further includes a coupling 60, a speed reducer 70, and a driving motor 80. The driving motor 80 is connected to the two couplings 60 through the speed reducer 70. The two couplings 60 are respectively connected to two groups of pressure rollers 21 and drive the two groups of pressure rollers 21 to rotate synchronously in opposite directions. Specifically, the driving end of the driving motor 80 is connected to the input end of the speed reducer 70. The speed reducer 70 has two output ends, which are respectively connected to the input ends of the two couplings 60. The output ends of the two couplings 60 are respectively connected to two groups of pressure rollers 21 and drive the two groups of pressure rollers 21 to rotate synchronously in opposite directions to achieve block forming of the material. Through the coordinated action of the coupling 60, the speed reducer 70, and the driving motor 80, the roll forming machine 100 can achieve efficient and stable rotation of the pressure rollers 21.

[0058] Refer to Figure 8 and Figure 9 , Based on the same concept, the present application further provides a briquetting system, including the roll forming machine 100 described above, and further including a disintegrator 200, a vibrating screening device 300, and a hoist 400, wherein: The disintegrator 200 is arranged downstream of the roll forming machine 100 and is used to break up the continuous briquettes extruded and formed by the roll forming machine 100 into individual briquettes; The vibrating screening device 300 is arranged downstream of the disintegrator 200 and is used to screen out finished briquettes and powder from the broken-up briquettes, and has a finished briquette outlet 301 for outputting the finished briquettes and a powder outlet 302 for outputting the powder; The hoist 400 is used to return the powder screened by the vibrating screening device 300 to the feeding device 30 of the roll forming machine 100. It has a horizontal section 401 and a vertical section 402. The horizontal section 401 is provided with a feeding pipe 403, and the feeding pipe 403 is connected to the powder outlet 302 of the vibrating screening device 300 to receive the screened powder; The vertical section 402 is provided with a discharging pipe 404, and the discharging pipe 404 is connected to the powder feeding ports 313 of the two groups of screw feeders 31 through a three-way pipe 405; The main feeding ports 312 of each group of screw feeders 31 of the roll forming machine 100 are respectively connected to a raw material feeding pipe 500, and the roll forming machine 100 presses the materials entering the main feeding port 312 and the powder feeding port 313 into shape.

[0059] Specifically, the roll forming machine 100, the disintegrator 200, and the vibrating screening device 300 are arranged in sequence along the material conveying direction. The inlet end of the elevator 400 is connected to the powder outlet 302 of the vibrating screening device 300, and the outlet end of the elevator 400 is connected to the powder inlet 313 of the screw feeder 31 in the roll forming machine 100. A discharge pipe 404 is provided in the vertical section 402 of the elevator 400, and a tee 405 is provided at the outlet of the discharge pipe 404. One end of the tee 405 is connected to the discharge pipe 404, and the other two ends of the tee 405 are respectively a first branch pipe 405a and a second branch pipe 405b, which are respectively connected to two groups of screw feeders 31 to transmit the screened powder to the roll forming machine 100. Moreover, the main inlet 312 of each group of screw feeders of the roll forming machine 100 is respectively connected to the raw material inlet pipe 500 to receive the incoming materials of the production line, and the roll forming machine 100 presses the incoming materials at the main inlet 312 and the powder inlet 313 into a formed shape.

[0060] The briquetting system is configured with a roll forming machine 100, a disintegrator 200, a vibrating screening device 300, and an elevator 400. During specific operation, the disintegrator 200 breaks the continuous briquettes formed by the roll forming machine 100 into individual briquettes, and then enters the vibrating screening device 300. After screening, the finished briquettes are output through the finished briquette outlet 301, and the powder enters the elevator 400 through the powder outlet 302. After being lifted by the elevator 400, the powder enters the powder inlet 313 of the screw feeder 31 through the discharge pipe 404 and the tee 405, and the roll forming machine 100 presses the incoming materials at the main inlet 312 and the powder inlet 313 into a formed shape.

[0061] For the briquetting system composed of the above roll forming machine 100, one roll forming machine 100 corresponds to only one disintegrator 200, one vibrating screening device 300, and one elevator 400. However, in the case of the same production capacity, the number of roll forming machines 100, disintegrators 200, vibrating screening devices 300, and elevators 400 in the traditional briquetting system all need to be two, that is, the number is doubled, the corresponding layout is more complex, and the floor area is also larger.

[0062] In summary, the roll forming machine 100 and the briquetting system provided by the present utility model, through a reasonable roll system design, set the forming groove groups 221 on the roll skin 22 of the pressure roll 21 as two or more independent groove groups with a roll skin 22 isolation area. Correspondingly, the feeding device 30 is set as multiple screw feeders 31 with the same number as the forming groove groups 221, so that the materials enter their respective corresponding forming groove groups 221 through the independent screw feeders 31 for briquetting. Without much change in the equipment size, the unit time production capacity of the roll forming machine 100 can be effectively improved to meet the process requirements of large-scale shaft furnace briquetting; under the same production capacity, the number of equipment can be reduced, the configuration of the briquetting system can be simplified, and the floor area can be reduced.

[0063] The above embodiments are only illustrative of the principles and effects of the present utility model, and are not used to limit the present utility model. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present utility model. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present utility model should still be covered by the claims of the present utility model.

Claims

1. A roll forming machine, characterized in that, Comprising: Main frame; Two sets of pressure roller assemblies, arranged in parallel on the main frame. Each set of pressure roller assemblies includes a pressure roller and a roller skin sleeved on the pressure roller. At least two sets of forming groove groups are arranged in parallel along the axial direction on the roller skin, and a roller skin partition area is arranged between adjacent forming groove groups; Feeding device, arranged on the main frame and adapted between the two sets of pressure roller assemblies, including at least two sets of screw feeders with the same number as and corresponding to the forming groove groups and arranged in parallel.

2. The roll forming machine according to claim 1, wherein A material blocking component is arranged at the cooperation part of the feeding device and the pressure roller assembly. The material blocking component has an isolation part, and the isolation part is located in the roller skin partition area, so that the material enters the corresponding forming groove group under the action of the screw feeder.

3. The roll forming machine according to claim 1, wherein Each set of forming groove groups includes at least two columns of full-circle grooves, and the center of each set of forming groove groups coincides with the center of the corresponding set of screw feeders.

4. The roll forming machine according to claim 1, wherein, The roller skin of each set of pressure roller assemblies includes a plurality of roller skin parts arranged circumferentially along the pressure roller and independent of each other. Each roller skin part is connected to the pressure roller by a fixing pin, and a first through hole is opened at the mating clearance between adjacent roller skin parts; pressure rings are arranged on both sides of the roller skin of each set of pressure roller assemblies, and a plurality of second through holes are opened along the circumferential direction on the pressure rings. The pressure rings are connected to the roller skin by passing a locking member through the first through hole and the second through hole.

5. The roll forming machine according to claim 1, characterized in that, A screw rod is arranged inside each set of screw feeders, and each set of screw feeders is provided with a main feed port and a powder feed port.

6. The roll forming machine according to claim 1, wherein The main frame includes an upper main beam, a lower main beam, main columns, a first upper cross beam, a second upper cross beam and a lower cross beam. The two main columns are symmetrically connected between the upper main beam and the lower main beam, and the two ends of each main column are respectively connected to the upper main beam and the lower main beam by column pins; the first upper cross beam and the second upper cross beam are both arranged on the top of the upper main beam, the feeding device is located between the first upper cross beam and the second upper cross beam, and the two lower cross beams are symmetrically arranged at the bottom of the lower main beam.

7. The roll forming machine according to claim 6, wherein Each set of pressure roller assemblies further includes two bearing seats respectively arranged at the front and rear ends of the pressure roller. A hydraulic cylinder is arranged on the main frame. The two bearing seats of one set of pressure roller assemblies are connected to the adjacent set of main columns, and the two bearing seats of the other set of pressure roller assemblies are connected to the adjacent set of main columns through the hydraulic cylinder.

8. The roll forming machine according to claim 7, characterized in that, A sealing cover and an air inlet are further arranged on the main frame. The sealing cover is located between the two sets of bearing seats and covers the periphery of the roller skins of the two sets of pressure roller assemblies; the air inlet is located at the top of the main frame and is used for introducing inert gas.

9. The roll forming machine according to claim 1, wherein, The roll forming machine further includes a coupling, a speed reducer and a driving motor. The driving motor is connected to the two couplings through the speed reducer. The two couplings are respectively connected to the two sets of pressure rollers and respectively drive the two sets of pressure rollers to rotate synchronously in opposite directions.

10. A briquetting system, characterized in that, Comprising the roll forming machine according to any one of claims 1-9, further including a disintegrator, a vibrating screening device and a hoist, wherein: The shredding machine is arranged downstream of the roll forming machine and is used to shred the continuous briquettes formed by the roll forming machine into individual briquettes. The vibrating screening device is arranged downstream of the shredding machine and is used to screen out finished briquettes and powder from the shredded briquettes. It has a finished briquette outlet for outputting the finished briquettes and a powder outlet for outputting the powder. The elevator is used to return the powder screened by the vibrating screening device to the feeding device of the roll forming machine. It has a horizontal section and a vertical section. The horizontal section is provided with a feeding pipe, and the feeding pipe is connected to the powder outlet of the vibrating screening device to receive the screened powder. The vertical section is provided with a discharging pipe, and the discharging pipe is connected to the powder feeding ports of two groups of the screw feeders through a tee pipe. The main feeding ports of each group of screw feeders of the roll forming machine are respectively connected to the raw material feeding pipes, and the roll forming machine presses the materials entering the main feeding ports and the powder feeding ports into shapes.

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