Manufacturing method of high-boron low-aluminum ferroboron alloy

Abstract

The invention relates to the technical field of alloy preparation, in particular to a high-boron low-aluminum ferroboron alloy manufacturing method which comprises a raw material mixing barrel with a feeding port and a discharging port formed in the two ends correspondingly. The device further comprises a barrel opening opening and closing set, the barrel opening opening and closing set is arranged in the raw material mixing barrel, the barrel opening opening and closing set comprises two guide pipes which are arranged at the feeding port and the discharging port correspondingly and installed in the raw material mixing barrel, and two spiral guide grooves are symmetrically formed in the inner ring faces of the guide pipes. The ends, close to the middle of the raw material mixing barrel, of the two spiral guide grooves communicate through an annular groove. The barrel opening opening and closing set is matched with the first driving part, automatic opening of the inlet sealing part during feeding of the raw material mixing barrel, automatic opening of the outlet sealing part during stirring, closing of the outlet sealing part and the inlet sealing cover and automatic opening of the outlet sealing part during discharging of the raw material mixing barrel can be achieved, the automation degree of the equipment is effectively improved, only one drive is used for achieving, and the production efficiency is improved. The manpower investment is reduced, and the cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of alloy preparation, and in particular to a method for preparing a high-boron and low-aluminum ferroboron alloy. Background Art

[0002] High-boron, low-aluminum ferroboron alloy is a special alloy with iron as the matrix, boron as the main alloying element, and strictly controlled aluminum content. It has the advantages of high hardness, excellent wear resistance, low aluminum control and good neutron absorption ability. It is widely used in wear-resistant surfacing welding wire, cast wear-resistant alloys, neutron absorption materials, nuclear waste treatment and other technical fields.

[0003] At present, high-boron and low-aluminum ferro-boron alloy products generally include the steps of weighing ingredients, mixing, smelting, unloading, cooling, finishing, sorting and selecting, packaging and warehousing, etc. Among them, raw material mixing and stirring is one of the important steps. The uniformity of raw material mixing directly affects the stability of alloy components, smelting efficiency and final product quality. At present, raw materials are usually mixed by drum mixers, which can effectively mix raw materials with good mixing effect. However, in the process of raw material input and discharge, drum mixers are usually carried out manually, which increases the input of manpower and cannot realize automatic continuous mixing. At the same time, some raw materials are attached to the drum mixer during the discharge process, and the discharge effect is not ideal. Summary of the invention

[0004] Based on this, it is necessary to provide a method for preparing a high-boron, low-aluminum ferroboron alloy, which can solve the problems existing when mixing the above-mentioned raw materials.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme, a method for preparing a high-boron, low-aluminum ferroboron alloy, and the specific method is as follows: S1, weighing and mixing ingredients: weighing and mixing the required raw materials according to the formula ratio.

[0006] S2. Mixing: Use a powerful mixer to evenly mix the weighed raw materials.

[0007] S3. Smelting: Add the mixed raw materials into the smelting furnace for smelting.

[0008] S4. Out of the furnace: When the alloy composition and temperature in the furnace reach the specified requirements, the smelted high-boron and low-aluminum ferroboron alloy liquid is taken out of the furnace and flows into a specific receiving container.

[0009] S5. Cooling: Cooling the high-boron and low-aluminum ferro-boron alloy liquid kneaded in a specific container to obtain a high-boron and low-aluminum ferro-boron alloy block.

[0010] Among them, S2 is completed by using a mixing device for high-boron low-aluminum ferro-boron alloy raw materials, and the mixing device for high-boron low-aluminum ferro-boron alloy raw materials includes: a raw material mixing barrel with a feed inlet and a discharge outlet at both ends.

[0011] It also includes a barrel mouth opening and closing group, which is arranged in the raw material mixing barrel. The barrel mouth opening and closing group includes two guide tubes respectively arranged at the feed port and the discharge port and installed in the raw material mixing barrel. Two spiral guide grooves are symmetrically provided on the inner annular surface of the guide tube. The two spiral guide grooves are connected at one end close to the middle of the raw material mixing barrel through an annular groove. The spiral guide grooves in the upper and lower guide tubes have opposite spiral directions. The two guide tubes are respectively provided with an inlet sealing part and an outlet sealing part that cooperate with the corresponding spiral guide grooves.

[0012] The barrel opening and closing group also includes a transmission part connected to the inlet sealing part and the outlet sealing part at the same time, and the transmission part controls the inlet sealing part and the outlet sealing part at the same time to meet the following requirements: opening the feed port and sealing the discharge port when loading; sealing the feed port and the discharge port when stirring; and sealing the feed port and opening the discharge port when discharging.

[0013] Wall scraping parts for scraping off the raw materials attached to the inner wall of the raw material mixing barrel are symmetrically arranged on the upper and lower sides of the transmission part.

[0014] Preferably, the inlet sealing part includes a lifting branch chain arranged in the corresponding guide tube, the end of the lifting branch chain close to the feed port is connected to an inlet sealing cover for closing the feed port, the lifting branch chain is connected to a pushing branch chain, and the outer side of the pushing branch chain is symmetrically provided with a plug-in branch chain connected to the corresponding guide tube.

[0015] Preferably, the lifting branch chain includes a lifting rod which is arranged in the corresponding guide tube and has a placement cavity at one end close to the inlet sealing cover, a telescopic spring is installed in the placement cavity, a connecting rotating plate which is rotatably connected to the inlet sealing cover is installed at the end of the telescopic spring away from the lifting rod, a spline sliding hole is opened in the middle of the lifting rod, and a spline rod is slidably connected in the spline sliding hole.

[0016] Preferably, the lifting branch chain also includes a sliding groove opened on the outer ring surface of the lifting rod away from the end of the inlet sealing cover, a lifting block is slidably connected in the sliding groove, a sliding block that slides with the spiral guide groove is installed on the lifting block, and an extrusion spring is installed between the lifting block and the sliding groove.

[0017] Preferably, the pushing and squeezing branch chain includes a limiting tube slidably sleeved on the outer surface of the lifting rod and fixedly connected to the inlet sealing cover, two limiting through holes are symmetrically provided at one end of the limiting tube close to the inlet sealing cover, a receiving groove is provided on the wall of the limiting through hole, a pushing block is slidably connected in the limiting through hole, a sliding protrusion located in the receiving groove is integrally formed on the pushing block, and a reset spring is installed between the sliding protrusion and the receiving groove.

[0018] Preferably, the plug-in branch chain 1 includes a placement countersunk hole opened in the guide tube and whose position corresponds to the limiting through hole, a plug-in block is slidably connected in the placement countersunk hole, and a push spring is installed between the plug-in block and the placement countersunk hole.

[0019] Preferably, the outlet sealing part includes a lifting branch chain 2 arranged in the corresponding guide tube, and the end of the lifting branch chain 2 close to the discharge port is connected to an outlet sealing cover for closing the discharge port, and the lifting branch chain 2 is connected to a pushing branch chain 2, and the outer side of the pushing branch chain 2 is symmetrically provided with a plug-in branch chain 2 connected to the corresponding guide tube.

[0020] Preferably, the transmission part includes a support frame installed in the raw material mixing barrel, and four evenly distributed transmission rods are rotatably connected to the support frame. The two horizontal transmission rods penetrate the raw material mixing barrel, and the two vertical transmission rods are respectively connected to the inlet sealing part and the outlet sealing part, and the opposite ends of the four transmission rods are installed with mutually meshing bevel gears.

[0021] Preferably, the wall scraping part includes a traction rod installed on a vertical transmission rod, and a scraping rod that slides with the inner wall of the raw material mixing barrel is installed at one end of the traction rod away from the transmission rod, and rubber soft plates are installed at both upper and lower ends of the scraping rod.

[0022] Preferably, the raw material mixing barrel is connected to a supporting assembly, and a driving part 1 for driving the transmission part and a driving part 2 for driving the raw material mixing barrel to rotate are respectively connected to the supporting assembly.

[0023] In summary, the present invention includes the following beneficial technical effects: 1. The barrel opening and closing group used in the present invention cooperates with the driving part to realize the automatic opening of the inlet sealing part when loading the raw material mixing barrel, the closing of the outlet sealing part and the inlet sealing cover during stirring, and the automatic opening of the outlet sealing part during dropping, which effectively improves the automation degree of the equipment and is achieved by only one drive, reducing manpower input and reducing costs.

[0024] 2. The barrel opening and closing group used in the present invention can scrape the raw materials remaining on the inner wall of the raw material mixing barrel 1 during the material dropping process, thereby improving the effect of discharging the mixed raw materials and avoiding affecting the subsequent raw material mixing, thereby ensuring the accuracy of the raw material input ratio. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0026] Figure 1 A flow chart of a method for making a high-boron, low-aluminum ferroboron alloy according to the present invention is shown.

[0027] Figure 2 A three-dimensional structural schematic diagram of the present invention is shown.

[0028] Figure 3 A schematic diagram of the three-dimensional structure of the present invention without the support assembly, the first driving part and the second driving part is shown.

[0029] Figure 4 A front view of the present invention is shown.

[0030] Figure 5 A left side view of the present invention is shown.

[0031] Figure 6 The present invention is shown Figure 4 Sectional view of AA.

[0032] Figure 7 The present invention Figure 6 Magnified view of area C.

[0033] Figure 8 The present invention is shown Figure 5 Cross-sectional view of BB.

[0034] Fig. 9 A three-dimensional structural schematic diagram of the guide tube, the spiral guide groove and the annular groove of the present invention is shown.

[0035] Fig.10 It is a diagram showing the changes of the inlet sealing cover and the outlet sealing cover during the working process of the present invention.

[0036] The above drawings include the following reference numerals: 1. raw material mixing barrel; 10. feed port; 11. discharge port; 2. barrel opening and closing group; 20. guide pipe; 21. spiral guide groove; 22. annular groove; 23. inlet sealing part; 230. lifting branch chain 1; 2300. lifting rod; 2301. spline sliding hole; 2302. spline rod; 2303. telescopic spring; 2304. connecting rotating plate; 2305. sliding groove; 2306. lifting block; 2307. sliding block; 2308. extrusion spring; 231. inlet sealing cover; 232. extrusion branch chain 1; 2320. limit pipe; 2321. limit through hole; 2322. extrusion block; 2323. reset spring; 2 33. Plug-in branch chain 1; 2330. Place countersunk hole; 2331. Plug-in block; 2332. Push spring; 24. Outlet sealing part; 240. Lifting branch chain 2; 241. Outlet sealing cover; 242. Pushing branch chain 2; 243. Plug-in branch chain 2; 25. Transmission part; 250. Support frame; 2500. Stirring blade; 251. Transmission rod; 252. Bevel gear; 26. Scraping part; 260. Traction rod; 261. Scraping rod; 262. Rubber soft board; 3. Support assembly; 30. Support frame; 31. Rotating support tube; 32. Accommodating tube; 33. Placement plate; 4. Drive part 1; 40. Slip ring; 41. Motor seat plate; 42. Servo motor; 5. Drive part 2. DETAILED DESCRIPTION

[0037] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0038] In order to achieve the above object, the present invention adopts the following technical solutions: Figure 1-Figure 10 A method for preparing a high-boron, low-aluminum ferroboron alloy, the specific method is as follows: S1, weighing and mixing ingredients: weighing and mixing the required raw materials according to the formula ratio, the raw materials are specifically boron oxide, steel chips, petroleum coke and wood chips, boron oxide has the characteristics of high purity and low aluminum impurities, steel chips have the characteristics of low cost and easy acquisition, petroleum coke has the characteristics of high fixed carbon content and low sulfur content, and wood chips have a porous structure that can improve the reaction kinetics during smelting.

[0039] S2. Mixing: Use a powerful mixer to evenly mix the weighed raw materials. Set appropriate mixing time and mixing speed. During the mixing process, different raw material particles are fully in contact, laying the foundation for uniform reaction during subsequent smelting.

[0040] S3. Smelting: Add the mixed raw materials into the smelting furnace for smelting. After the raw materials are added, the temperature is gradually increased. When the temperature reaches 1400-1550℃, the raw materials begin to melt and react. During the smelting process, the reducing atmosphere and temperature fluctuations in the furnace must be strictly maintained to promote the formation of high-boron and low-aluminum ferroboron alloy.

[0041] S4. Out of the furnace: When the alloy composition and temperature in the furnace reach the specified requirements, the furnace body is tilted, and the smelted high-boron and low-aluminum ferroboron alloy liquid is slowly released through the furnace body outlet channel into a specific receiving container.

[0042] S5. Cooling: The high-boron and low-aluminum ferro-boron alloy liquid kneaded in a specific container is cooled to obtain a high-boron and low-aluminum ferro-boron alloy block. During the cooling process, it is first cooled naturally in the air to a certain temperature, and then air-cooled, which can not only ensure the cooling speed, but also reduce stress concentration. At the same time, the cooling speed of the alloy is monitored during the cooling process to ensure uniform structure of the alloy during solidification, and avoid the occurrence of coarse grains or component segregation that affects the alloy performance.

[0043] Among them, S2 is completed by using a mixing device for high-boron low-aluminum ferro-boron alloy raw materials, and the mixing device for high-boron low-aluminum ferro-boron alloy raw materials includes a raw material mixing barrel 1 with a feed inlet 10 and a discharge outlet 11 at both ends.

[0044] The raw material mixing barrel 1 is connected to a support assembly 3, and the support assembly 3 includes two support frames 30 distributed on both sides of the raw material mixing barrel 1, and the opposite ends of the two support frames 30 are rotatably connected with a rotating support tube 31 and a receiving tube 32, and a placement plate 33 is commonly installed at the lower ends of the two support frames 30.

[0045] During specific operation, the raw material mixing barrel 1 is placed in the working position through two support frames 30 and a placement plate 33. The two support frames 30 support the raw material mixing barrel 1 by rotating the support tube 31 and the receiving tube 32. At the same time, the raw material mixing barrel 1 can rotate on the two support frames 30 by rotating the support tube 31 and the receiving tube 32. The feed port 10 and the discharge port 11 of the raw material mixing barrel 1 are respectively used for the input of raw materials and the discharge of mixed materials.

[0046] The mixing equipment for high-boron and low-aluminum ferroboron raw materials also includes a barrel opening and closing group 2, which is arranged in the raw material mixing barrel 1. The barrel opening and closing group 2 includes two guide pipes 20 respectively arranged at the feed port 10 and the discharge port 11 and installed in the raw material mixing barrel 1 through multiple fixing rods. Two spiral guide grooves 21 are symmetrically provided on the inner annular surface of the guide pipe 20. The ends of the two spiral guide grooves 21 close to the middle of the raw material mixing barrel 1 are connected through an annular groove 22. The spiral guide grooves 21 in the upper and lower guide pipes 20 have opposite spiral directions. The two guide pipes 20 are respectively provided with an inlet sealing part 23 and an outlet sealing part 24 that cooperate with the corresponding spiral guide grooves 21.

[0047] The barrel opening and closing assembly 2 further includes a transmission part 25 connected to both the inlet sealing part 23 and the outlet sealing part 24 .

[0048] During specific operation, in the initial state, the inlet sealing part 23 and the outlet sealing part 24 respectively seal the feed port 10 and the discharge port 11 of the raw material mixing barrel 1, and the feed port 10 and the discharge port 11 are distributed up and down, and the transmission part 25 simultaneously controls the inlet sealing part 23 and the outlet sealing part 24 to meet the following conditions: during feeding, the driven transmission part 25 drives the inlet sealing part 23 to move upward in the guide pipe 20 on the upper side along the guide direction of the spiral guide groove 21, thereby opening the feed port 10, and the outlet sealing part 24 continues to seal the discharge port 11. After the feeding is completed, the transmission part 25 drives the inlet sealing part 23 to move upward in the guide pipe 20 on the upper side along the guide direction of the spiral guide groove 21, thereby opening the feed port 10, and the outlet sealing part 24 continues to seal the discharge port 11. 23 is reset and the feed port 10 is sealed. During stirring and mixing, the transmission part 25 does not work, and the inlet sealing part 23 and the outlet sealing part 24 seal the feed port 10 and the outlet port 11 respectively. During unloading, the driven transmission part 25 drives the outlet sealing part 24 to move downward in the guide pipe 20 on the lower side along the guide direction of the spiral guide groove 21, thereby opening the outlet port 11, and the inlet sealing part 23 continues to seal the feed port 10. After the mixed material is discharged, the transmission part 25 drives the outlet sealing part 24 to reset and seal the outlet port 11, and then repeats this step to realize the function of continuous mixing of the raw materials.

[0049] The transmission part 25 includes a support frame 250 installed in the raw material mixing barrel 1, and four evenly distributed transmission rods 251 are rotatably connected to the support frame 250. Two horizontal transmission rods 251 penetrate the raw material mixing barrel 1, and mutually meshing bevel gears 252 are installed at the opposite ends of the four transmission rods 251.

[0050] The support assembly 3 is respectively connected with a driving part 1 4 for driving the transmission part 25 and a driving part 2 5 for driving the raw material mixing barrel 1 to rotate. The driving part 1 4 includes a slip ring 40 whose fixed end is fixedly connected to the housing of the driving part 2 5, and a motor base plate 41 fixedly connected to the inner wall of the accommodating tube 32 is installed on the rotating section of the slip ring 40. A servo motor 42 is installed on the motor base plate 41, and the output shaft of the servo motor 42 is fixedly connected to the horizontal transmission rod 251.

[0051] During specific operation, the slip ring 40 is connected to the existing power supply before operation. The slip ring 40 is a prior art and realizes continuous current output between the fixed end and the rotating end. The servo motor 42 is electrically connected to the slip ring 40, and the servo motor 42 can accurately control the number of rotations.

[0052] The inlet sealing part 23 includes a lifting branch chain 230 arranged in the corresponding guide tube 20, and the end of the lifting branch chain 230 close to the feed port 10 is connected to an inlet sealing cover 231 for closing the feed port 10, and two guide rods are symmetrically installed on the lower end of the inlet sealing cover 231, and the guide rods are slidably sleeved with a guide frame fixedly connected to the outer surface of the raw material mixing barrel 1, and the outlet sealing part 24 includes a lifting branch chain 240 arranged in the corresponding guide tube 20, and the end of the lifting branch chain 240 close to the discharge port 11 is connected to an outlet sealing cover 241 for closing the discharge port 11, and the outlet sealing cover 241 has a conical structure, and the structure of the lifting branch chain 240 is the same as that of the lifting branch chain 230.

[0053] The lifting branch chain 230 includes a lifting rod 2300 which is arranged in the corresponding guide tube 20 and has a placement cavity at one end close to the inlet sealing cover 231, a telescopic spring 2303 is installed in the placement cavity, and a connecting rotating plate 2304 which is rotatably connected to the inlet sealing cover 231 is installed at the end of the telescopic spring 2303 away from the lifting rod 2300, a spline sliding hole 2301 is opened in the middle of the lifting rod 2300, and a spline rod 2302 is slidably connected in the spline sliding hole 2301, and two vertical transmission rods 251 are respectively connected to the spline rod 2302 in the inlet sealing part 23 and the spline rod 2302 in the outlet sealing part 24.

[0054] During specific operation, the servo motor 42 is started, and the servo motor 42 drives the horizontal transmission rod 251 to rotate. The rotating transmission rod 251 drives multiple bevel gears 252 to rotate through the corresponding bevel gear 252. The multiple bevel gears 252 drive multiple transmission rods 251 to rotate. The two vertical transmission rods 251 rotate and the rotation directions are opposite. The two rotating vertical transmission rods 251 drive the two spline rods 2302 to rotate. The spline rod 2302 drives the lifting rod 2300 to rotate in the guide tube 20 through the spline sliding hole 2301. At the same time, the lifting rod 2300 drives the connecting rotating plate 2304 to rotate through the telescopic spring 2303.

[0055] The lifting branch chain 230 also includes a sliding groove 2305 opened on the outer ring surface of the lifting rod 2300 at one end away from the inlet sealing cover 231, and a lifting block 2306 is slidably connected in the sliding groove 2305. A sliding block 2307 that slides with the spiral guide groove 21 is installed on the lifting block 2306, and an extrusion spring 2308 is installed between the lifting block 2306 and the sliding groove 2305. A guide rod fixedly connected to the sliding groove 2305 is slidably penetrated in the middle of the lifting block 2306.

[0056] When working, in the initial state, the two sliding blocks 2307 are in the middle of the two spiral guide grooves 21 in the guide tube 20. When loading, the transmission rods 251 rotating on the upper and lower sides drive the corresponding spline rods 2302 to rotate, and the spline rods 2302 drive the sliding blocks 2307 to slide in the corresponding spiral guide grooves 21 through the sliding grooves 2305 and the guide rods on the lifting rods 2300. At this time, the rotation direction of the upper and lower lifting rods 2300 is to drive the sliding blocks 2307 to move upward along the spiral guide grooves 21, and the lifting rod 2300 located at the upper side drives the sliding blocks 2307 to gradually move to the upper side. At the upper end of the spiral guide groove 21 in the side guide tube 20, the upper end of the lifting rod 2300 above pushes the inlet sealing cover 231 upward, thereby realizing the function of opening the feed port 10. At this time, the lifting rod 2300 located at the bottom drives the sliding block 2307 to move to the upper end of the spiral guide groove 21 in the lower guide tube 20, that is, the annular groove 22. In this rotation direction, the sliding block 2307 located at the lower side rotates in the annular groove 22 and will not enter the spiral guide groove 21 on the lower side, and will not be affected by the number of rotations of the transmission rod 251, ensuring that the number of rotations of the upper transmission rod 251 is sufficient The upper lifting rod 2300 is driven to separate the inlet sealing cover 231 from the feed port 10, and the lower lifting rod 2300 is pulled by the telescopic spring 2303 and the outlet sealing cover 241, so that the outlet sealing cover 241 always seals the discharge port 11, and then the raw materials are fed into the raw material mixing barrel 1 from the feed port 10 through the existing feeding equipment; when the raw materials are fed, the servo motor 42 is adjusted to rotate in the opposite direction, and the rotation direction of the upper and lower lifting rods 2300 is to drive the sliding block 2307 to move downward along the spiral guide groove 21, and the upper lifting rod 230 0 drives the sliding block 2307 to gradually move to the middle position of the spiral guide groove 21 in the upper guide tube 20. At the same time, the upper lifting rod 2300 pulls the inlet sealing cover 231 through the telescopic spring 2303, thereby realizing the function of closing the feed port 10. At the same time, the lifting rod 2300 located at the bottom drives the sliding block 2307 to move downward and move from the annular groove 22 to the spiral guide groove 21 again, until the sliding block 2307 on the lower side moves to the middle position of the corresponding spiral guide groove 21. At this time, the inlet sealing cover 231 and the outlet sealing cover 241 seal the feed port 10 and the discharge port 11 respectively.

[0057] The lifting branch chain 230 is connected to a pushing and squeezing branch chain 232, and the lifting branch chain 240 is connected to a pushing and squeezing branch chain 242. The structure of the pushing and squeezing branch chain 242 is the same as that of the pushing and squeezing branch chain 232. The pushing and squeezing branch chain 232 includes a limiting tube 2320 slidably sleeved on the outer surface of the lifting rod 2300 and fixedly connected to the inlet sealing cover 231. Two limiting through holes 2321 are symmetrically provided at one end of the limiting tube 2320 close to the inlet sealing cover 231. A receiving groove is provided on the hole wall of the limiting through hole 2321. A pushing block 2322 is slidably connected in the limiting through hole 2321. A sliding protrusion located in the receiving groove is integrally formed on the pushing block 2322, and a reset spring 2323 is installed between the sliding protrusion and the receiving groove.

[0058] The outer side of the pushing and squeezing branch chain 1 232 is symmetrically provided with a plug-in branch chain 1 233 connected to the corresponding guide tube 20, and the outer side of the pushing and squeezing branch chain 2 242 is symmetrically provided with a plug-in branch chain 2 243 connected to the corresponding guide tube 20. The structure of the plug-in branch chain 243 is the same as that of the plug-in branch chain 1 233. The plug-in branch chain 1 233 includes a placement countersunk hole 2330 which is opened in the guide tube 20 and whose position corresponds to the limiting through hole 2321. A plug-in block 2331 is slidably connected in the placement countersunk hole 2330. An inclined surface is provided at one end of the plug-in block 2331 away from the middle of the raw material mixing barrel 1, and a push spring 2332 is installed between the plug-in block 2331 and the placement countersunk hole 2330.

[0059] In specific operation, the inlet sealing cover 231 and the outlet sealing cover 241 are not only positioned by the cooperation with the lifting rod 2300 and the telescopic spring 2303, but also realize hard limiting by the cooperation between the squeezing and pushing branch chain 1 232 and the squeezing and pushing branch chain 1 232 and the squeezing and pushing branch chain 2 242 and the plug-in branch chain 2 243, so as to avoid the inlet sealing cover 231 and the outlet sealing cover 241 from opening during the subsequent raw material mixing process. The specific operation is as follows: in the initial state, the inlet sealing cover 231 The inlet 10 and outlet 11 are sealed with the outlet sealing cover 241, respectively. The plug-in blocks 2331 on the upper and lower sides are both located in the corresponding limiting through holes 2321, thereby realizing hard limiting of the inlet sealing cover 231 and the outlet sealing cover 241. When loading, the lifting rod 2300 on the upper side pushes the two pushing blocks 2322 on the upper side when moving. The pushing blocks 2322 are forced to move in the limiting through holes 2321 and push the plug-in blocks 2331 out of the limiting through holes 2321. At the same time, the pushing block 2322 squeezes the reset spring 2323 through the sliding protrusion, and the plug-in block 2331 squeezes the push spring 2332, at which time the hard limit of the inlet sealing cover 231 is released, and then the upper lifting rod 2300 pushes the inlet sealing cover 231 upward to open the feed port 10. After the feeding is completed, the lifting rod 2300 pulls the inlet sealing cover 231 to reset through the telescopic spring 2303. When the inlet sealing cover 231 is reset and the lifting rod 2300 and the pushing block 2322 are in contact, the lifting rod 2300 and the pushing block 2331 are pressed together. After block 2322 is separated, the squeezed return spring 2323 drives the pushing block 2322 to return to its original position through the sliding protrusion. At the same time, the squeezed push spring 2332 returns to its original position and drives the plug-in block 2331 to re-enter the limiting through hole 2321, thereby realizing the function of hard limiting the inlet sealing cover 231. Similarly, the presence or absence of hard limiting of the outlet sealing cover 241 can also be realized. It should be noted that the elastic force provided by the telescopic spring 2303 is greater than that of the return spring 2323 and the push spring 2332.

[0060] A plurality of evenly distributed stirring blades 2500 are installed on both left and right sides of the transverse section of the support frame 30 .

[0061] During specific operation, after the raw materials are put into the machine, the driving unit 25 is started. The driving unit 25 is an existing driving device. The driving unit 25 drives the containing tube 32 to rotate, and the containing tube 32 drives the raw material mixing barrel 1 to rotate. The raw material mixing barrel 1 drives the raw materials to rotate up and down to achieve the function of mixing the raw materials. At the same time, the stirring blades 2500 on the support frame 30 play a stirring role in mixing the raw materials, and the raw materials fall onto the stirring blades 2500 by gravity. The stirring blades 2500 can break up the raw materials, thereby further improving the effect of mixing the raw materials.

[0062] The upper and lower sides of the transmission part 25 are symmetrically provided with scraping parts 26 for scraping off the raw materials attached to the inner wall of the raw material mixing barrel 1 .

[0063] The scraping part 26 includes a traction rod 260 installed on a vertical transmission rod 251, and one end of the traction rod 260 away from the transmission rod 251 is equipped with a scraping rod 261 that slides with the inner wall of the raw material mixing barrel 1, and the upper and lower ends of the scraping rod 261 are both equipped with rubber soft plates 262.

[0064] During specific operation, after the raw material mixing barrel 1 mixes the raw materials for a period of time, the driving part 25 is stopped, and then the servo motor 42 is started. The direction of rotation of the servo motor 42 is to drive the sliding block 2307 to move downward in the corresponding spiral guide groove 21. The steps and principles of the outlet sealing cover 241 opening the outlet port 11 are the same as the steps and principles of the inlet sealing cover 231 opening the feed port 10, and they are not repeated here. When the outlet sealing cover 241 is opened, the upper and lower transmission rods 251 drive the multiple traction rods 260 to rotate, and the traction rods 260 drive the scraper rods 261 to rotate and The raw materials remaining on the inner wall of the mixing barrel 1 are scraped off and discharged from the discharge port 11. The rubber soft plate 262 on the scraper rod 261 cleans the raw materials at this position when the scraper rod 261 rotates to the fixed rod or the support frame 30, thereby improving the effect of discharging the mixed raw materials and avoiding affecting the subsequent mixing of raw materials, ensuring the accuracy of the raw material input ratio. After the raw materials are discharged, the servo motor 42 is adjusted to rotate in the opposite direction. The steps and principles of the outlet sealing cover 241 sealing the discharge port 11 are the same as the steps and principles of the inlet sealing cover 231 sealing the feed port 10, which will not be repeated here.

[0065] Repeat the entire raw material mixing steps until all the raw materials are mixed and the work is completed.

[0066] In the description of the embodiments of the present invention, it should be noted that the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "top", "bottom", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the embodiments of the present invention. In addition, in the description of the present invention, unless otherwise specified, the meaning of "multiple" is two or more.

[0067] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting", "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0068] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for preparing a high-boron low-aluminum ferroboron alloy, characterized in that: The specific method is as follows: S1. Weighing ingredients: weighing and mixing the required raw materials according to the formula ratio; S2, mixing: using a powerful mixer to evenly mix the weighed ingredients; S3, smelting: adding the mixed raw materials into the smelting furnace for smelting; S4. Out of the furnace: When the alloy composition and temperature in the furnace reach the specified requirements, the smelted high-boron low-aluminum ferro-boron alloy liquid is taken out of the furnace and flows into a specific receiving container; S5, cooling: cooling the high-boron low-aluminum-boron ferroalloy liquid squeezed in a specific container to obtain a high-boron low-aluminum-boron ferroalloy block; Among them, S2 is completed by using a mixing device for high-boron low-aluminum ferro-boron alloy raw materials, and the mixing device for high-boron low-aluminum ferro-boron alloy raw materials includes: a raw material mixing barrel with a feed inlet and a discharge outlet at both ends; A barrel opening and closing group is arranged in the raw material mixing barrel, and the barrel opening and closing group includes two guide pipes respectively arranged at the feed port and the discharge port and installed in the raw material mixing barrel, two spiral guide grooves are symmetrically arranged on the inner annular surface of the guide pipe, and the ends of the two spiral guide grooves close to the middle of the raw material mixing barrel are connected through an annular groove, and the spiral guide grooves in the upper and lower guide pipes have opposite spiral directions, and the two guide pipes are respectively provided with an inlet sealing part and an outlet sealing part matched with the corresponding spiral guide grooves; The barrel opening and closing group also includes a transmission part connected to the inlet sealing part and the outlet sealing part at the same time, and the transmission part controls the inlet sealing part and the outlet sealing part at the same time to meet the following requirements: opening the feed inlet and sealing the discharge port when feeding; sealing the feed inlet and the discharge port when stirring; and sealing the feed inlet and opening the discharge port when discharging. Wall scraping parts for scraping off the raw materials attached to the inner wall of the raw material mixing barrel are symmetrically arranged on the upper and lower sides of the transmission part.

2. The method for preparing a high-boron low-aluminum ferroboron alloy according to claim 1, characterized in that: The inlet sealing part includes a lifting branch chain arranged in the corresponding guide tube, and the end of the lifting branch chain close to the feed port is connected to an inlet sealing cover for closing the feed port, the lifting branch chain is connected to a pushing branch chain, and the outer side of the pushing branch chain is symmetrically provided with a plug-in branch chain connected to the corresponding guide tube.

3. The method for preparing a high-boron low-aluminum ferroboron alloy according to claim 2, characterized in that: The lifting branch chain 1 includes a lifting rod which is arranged in the corresponding guide pipe and has a placement cavity at one end close to the inlet sealing cover, a telescopic spring is installed in the placement cavity, and a connecting rotating plate which is rotatably connected to the inlet sealing cover is installed at the end of the telescopic spring away from the lifting rod, a spline sliding hole is opened in the middle of the lifting rod, and a spline rod is slidably connected in the spline sliding hole.

4. The method for preparing a high-boron low-aluminum ferroboron alloy according to claim 3, characterized in that: The lifting branch chain 1 also includes a sliding groove opened on the outer ring surface of the lifting rod away from the end of the inlet sealing cover, a lifting block is slidably connected in the sliding groove, a sliding block that slides with the spiral guide groove is installed on the lifting block, and an extrusion spring is installed between the lifting block and the sliding groove.

5. The method for preparing a high-boron low-aluminum ferroboron alloy according to claim 3, characterized in that: The pushing and squeezing branch chain includes a limiting tube that is slidably sleeved on the outer surface of the lifting rod and fixedly connected to the inlet sealing cover. Two limiting through holes are symmetrically provided at one end of the limiting tube close to the inlet sealing cover. A receiving groove is provided on the hole wall of the limiting through hole. A pushing block is slidably connected in the limiting through hole. A sliding protrusion located in the receiving groove is integrally formed on the pushing block, and a reset spring is installed between the sliding protrusion and the receiving groove.

6. The method for preparing a high-boron low-aluminum ferroboron alloy according to claim 5, characterized in that: The plug-in branch chain 1 includes a placement countersunk hole opened in the guide tube and corresponding to the position of the limit through hole. A plug-in block is slidably connected in the placement countersunk hole, and a push spring is installed between the plug-in block and the placement countersunk hole.

7. The method for preparing a high-boron low-aluminum ferroboron alloy according to claim 1, characterized in that: The outlet sealing part includes a lifting branch chain 2 arranged in the corresponding guide tube, and the end of the lifting branch chain 2 close to the discharge port is connected to an outlet sealing cover for closing the discharge port, and the lifting branch chain 2 is connected to a pushing branch chain 2, and the outer side of the pushing branch chain 2 is symmetrically provided with a plug-in branch chain 2 connected to the corresponding guide tube.

8. The method for preparing a high-boron low-aluminum-boron ferroalloy according to claim 1, characterized in that: The transmission part includes a support frame installed in the raw material mixing barrel, and four evenly distributed transmission rods are rotatably connected to the support frame. The two horizontal transmission rods penetrate the raw material mixing barrel, and the two vertical transmission rods are respectively connected to the inlet sealing part and the outlet sealing part. The opposite ends of the four transmission rods are installed with mutually meshing bevel gears.

9. The method for preparing a high-boron low-aluminum boron iron alloy according to claim 8, characterized in that: The wall scraping part includes a traction rod installed on a vertical transmission rod, and a scraping rod that slides with the inner wall of the raw material mixing barrel is installed at one end of the traction rod away from the transmission rod, and rubber soft plates are installed at both upper and lower ends of the scraping rod.

10. The method for preparing a high-boron low-aluminum ferroboron alloy according to claim 1, characterized in that: The raw material mixing barrel is connected to a supporting assembly, and a driving part 1 for driving the transmission part and a driving part 2 for driving the raw material mixing barrel to rotate are respectively connected to the supporting assembly.

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