阅读说明：本技术 一种海绵钛二次选料筛分装置及方法 (Secondary titanium sponge sorting and screening device and method ) 是由 李渤渤 蒋林凡 裴腾 朱俊杰 毛念民 *** 于 2019-09-10 设计创作，主要内容包括：一种海绵钛二次选料筛分装置,包括震荡料斗、布料机构、分选机构和粒度筛分器,所述震荡料斗设置在机架上,在震动过程中为布料机构提供海绵钛,所述布料机构入口位置设有布料器,以将海绵钛均匀铺开,布料机构的出口设有磁选装置,所述分选机构包括传送机构和分拣工位,传送机构一端和布料机构的出口衔接,另一端和粒度筛分器的进料口衔接,所述分拣工位位于传送机构的一侧或两侧,所述粒度筛分器用于将不同颗粒大小的海绵钛筛分并分别收集到相应的容器内。二次选料筛分方法包括上料、布料、选料、筛分过程,解决了海绵钛二次选料劳动强度大、效率低的问题,并达到海绵钛颗粒度可按实际需求进行筛分的目的,为高端钛材的熔炼提供高品质海绵钛。(The utility model provides a titanium sponge secondary separation screening plant, is including vibrating hopper, cloth mechanism, sorting mechanism and particle size screening ware, vibrate the hopper setting in the frame, provide the titanium sponge for cloth mechanism in vibrations process, cloth mechanism's entry position is equipped with the distributing device to evenly spread the titanium sponge, the export of cloth mechanism is equipped with the magnetic separation device, sorting mechanism includes transport mechanism and letter sorting station, and transport mechanism one end and cloth mechanism's export links up, and the feed inlet of the other end and particle size screening ware links up, the letter sorting station is located one side or both sides of transport mechanism, the particle size screening ware is used for screening the titanium sponge of different granule sizes and collects respectively in the corresponding container. The secondary material selection screening method comprises the processes of feeding, distributing, selecting and screening, solves the problems of high labor intensity and low efficiency of secondary material selection of the titanium sponge, achieves the purpose that the granularity of the titanium sponge can be screened according to actual requirements, and provides high-quality titanium sponge for smelting high-end titanium materials.)

1. The utility model provides a titanium sponge secondary sorting screening plant which characterized in that: including vibrating hopper (4), cloth mechanism, sorting mechanism and particle size screening ware (16), vibrate hopper (4) and set up in the frame, provide the sponge titanium for cloth mechanism in the vibration process, cloth mechanism's entry position is equipped with distributing device (8) to evenly spread the sponge titanium, the export of cloth mechanism is equipped with magnetic separation device (12), sorting mechanism includes transport mechanism and selection material station, and transport mechanism one end and cloth mechanism's export link up, and the feed inlet of the other end and particle size screening ware (16) links up, the selection material station is located transport mechanism's one side or both sides, particle size screening ware (16) are used for sieving the sponge titanium of different granule sizes and collect respectively in the corresponding container.

2. The secondary titanium sponge sorting and screening device as claimed in claim 1, wherein: vibrate hopper (4) and pass through the spring setting in the frame, vibrate hopper (4) bottom and be the inclined plane for the one side of export, install inertial vibrator I (10) outside the inclined plane.

3. The secondary titanium sponge sorting and screening device as claimed in claim 1, wherein: the discharge gate that vibrates hopper (4) is equipped with liftable unloading baffle (6) to control load and ejection of compact speed, be equipped with the rack on unloading baffle (6) to be equipped with gear and drive gear pivoted crank on vibrating hopper (4), the gear with rack toothing.

4. The secondary titanium sponge sorting and screening device as claimed in claim 1, wherein: the distributing device (8) is an impeller, and the impeller is driven to rotate by a corresponding distributing motor (7).

5. The secondary titanium sponge sorting and screening device as claimed in claim 1, wherein: the material distribution mechanism further comprises a material distribution conveying mesh belt (9), and the material distribution conveying mesh belt (9) horizontally conveys the titanium sponge discharged by the vibration hopper to the sorting mechanism.

6. The secondary titanium sponge sorting and screening device as claimed in claim 1, wherein: the sorting mechanism comprises a groove-shaped conveying crawler belt (13) which is obliquely arranged, the lowest end of the groove-shaped conveying crawler belt (13) is located below an outlet of the distributing mechanism, and the highest end of the groove-shaped conveying crawler belt (13) is located above a feeding hole of the particle size screening device (16).

7. The secondary titanium sponge sorting and screening device as claimed in claim 1, wherein: the particle size sieving device (16) comprises a screen (21), a lower chamber, an upper discharge hole (20) and a lower discharge hole (19), wherein the upper discharge hole (20) is positioned at one side of the screen (21), large-particle sponge titanium on the screen (21) is discharged into a corresponding container through the upper discharge hole (20), the lower discharge hole (19) is arranged at one side of the lower chamber, and small-particle sponge titanium passing through meshes of the screen (21) enters the lower chamber and is discharged into the corresponding container through the lower discharge hole (19); the bottom of the lower cavity is arranged on a fixed support (17) of the screening device through a spring, and an inertial vibrator II (23) is arranged on the outer side surface of the lower cavity.

8. The secondary titanium sponge sorting and screening device as claimed in claim 1, wherein: the secondary titanium sponge sorting and screening device further comprises a feeding mechanism which supplies materials for the vibration hopper (4).

9. The secondary titanium sponge sorting and screening device as claimed in claim 8, wherein: feed mechanism includes material loading roll table (1), hoist mechanism, track (24) and material loading dolly (3), material loading roll table (1) level sets up for send into material loading dolly (3) with the titanium sponge bucket, the one end rotation connection of vibrating hopper (4) is kept away from to the bottom of material loading dolly (3) is on hoist mechanism, and the one end roll that is close to vibrate hopper (4) sets up on track (24), track (24) comprise vertical section and horizontal segment, and the horizontal segment is located track (24) top to be located the feed inlet top of vibrating hopper (4).

10. A secondary titanium sponge sorting and screening method, which is characterized by being carried out by using the secondary titanium sponge sorting and screening device of claim 9, and comprising the following steps of:

firstly, transporting a titanium sponge barrel filled with titanium sponge to a feeding roller way (1), pushing the titanium sponge barrel into a feeding trolley (3), lifting the feeding trolley (3) to the horizontal section of a rail (24) through a feeding motor (2), then continuing lifting to lift one end of the trolley far away from a vibration hopper (4), pouring the titanium sponge into the vibration hopper (4), then reversing the feeding motor (2), descending the feeding trolley (3) to the position of the feeding roller way (1) and stopping, and waiting for next feeding;

secondly, vibrating a hopper (4) for blanking, uniformly paving the titanium sponge on a cloth conveying mesh belt (9) in a set thickness through a distributor (8), and conveying the titanium sponge passing through the distributor (8) to a magnetic separation device (12) through the cloth conveying mesh belt (9);

thirdly, the titanium sponge falls into a groove-shaped conveying crawler belt (13) after magnetic separation, material selecting stations (14) are arranged on two sides of the groove-shaped conveying crawler belt (13) for manual sorting operation, a hook-shaped tool is used for stirring the titanium sponge blocks in the grooves of the groove-shaped conveying crawler belt (13), and the defective titanium sponge is picked out;

fourthly, the sorted titanium sponge is conveyed to a particle size sieving device (16), the titanium sponge is fed to a screen (21) through a feeding hole in the top of the particle size sieving device (16), titanium sponge particles are sieved along the vibrating screen (21), and the titanium sponge meeting the particle size requirement after being sieved is discharged to an upper discharging hole through the surface of the screen (21) and is collected by a corresponding container; the small-particle titanium sponge passing through the meshes of the screen (21) is discharged to a lower discharge hole (19) through the lower chamber and enters a corresponding container for collection.

Technical Field

The invention belongs to the field of nonferrous metal processing, and particularly relates to a secondary titanium sponge sorting and screening device and method.

Background

Titanium and titanium alloy have corrosion resistance, specific strength high, biocompatibility good, advantage such as being nonmagnetic, apply to fields such as aerospace, chemical industry, medical treatment extensively, titanium sponge is the basic link of the titanium industry, it is the main raw material to carry on titanium material to smelt. The industry mainly adopts magnesium reduction reaction to prepare sponge titanium, and the reaction formula is TiCl₄+2Mg=Ti+2MgCl₂Then MgCl in the titanium sponge is distilled₂Separating and removing to obtain titanium sponge lump, and cutting, crushing, mixing and sorting to obtain a titanium sponge finished product with the granularity of less than or equal to 25.4 mm. In the production process of the titanium sponge, defective titanium sponge blocks are inevitably produced, and the defective titanium sponge blocks mainly comprise over-sintered titanium sponge blocks, dark yellow or bright yellow oxidized and nitrogen-rich titanium sponge blocks, titanium sponge blocks with obvious chloride residues, titanium sponge blocks with high iron and associated elements thereof, and verge riser titanium sponge and hard titanium sponge blocks with high impurity element content. Even after the preliminary separation by a titanium sponge manufacturer, the defective titanium sponge remains. Therefore, the titanium sponge used for high-end titanium materials in medical treatment, aerospace and the like needs to be selected for the second time before smelting, and the defective titanium sponge is removed, so that the quality risk caused by metallurgical defects such as low-density impurities, component segregation and the like is reduced.

In addition, small-particle titanium sponge with the diameter less than or equal to 3mm and rich in N, O impurity elements exists in the titanium sponge, and when the titanium sponge is used for smelting and preparing high-purity and high-plasticity titanium-requiring materials, the titanium sponge needs to be removed, such as high-ductility titanium-requiring plates, titanium target materials and the like. At present, the secondary selection and screening of titanium sponge in China generally adopts the steps of manually and flatly distributing the titanium sponge on an inspection platform to select defective titanium sponge, and then manually screening the granularity, so that the defects of low production efficiency, high labor intensity and poor quality stability are overcome. Therefore, it is necessary to develop a secondary titanium sponge sorting and screening device, which can continuously, simply and efficiently remove defective titanium sponge and obtain titanium sponge with a certain particle size range through screening, and is very important for improving the quality of titanium materials.

Disclosure of Invention

The invention aims to provide a secondary titanium sponge sorting and screening device and a secondary titanium sponge sorting and screening method, which can continuously and efficiently remove various types of defective titanium sponge in titanium sponge at one time and realize grading and screening of the particle size of the titanium sponge so as to reduce the metallurgical defects of low-density impurities, component segregation and the like in titanium and titanium alloy ingots and achieve the effect of remarkably improving the product quality.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a titanium sponge secondary separation screening plant, is including vibrating hopper, cloth mechanism, sorting mechanism and particle size screening ware, vibrate the hopper setting in the frame, provide the titanium sponge for cloth mechanism in the vibration process, cloth mechanism's entry position is equipped with the distributing device to evenly spread the titanium sponge, the export of cloth mechanism is equipped with the magnetic separation device, sorting mechanism includes transport mechanism and selection material station, and transport mechanism one end and cloth mechanism's export links up, and the feed inlet of the other end and particle size screening ware links up, the selection material station is located transport mechanism's one side or both sides, the particle size screening ware is used for screening the titanium sponge of different granule sizes and collects respectively in the corresponding container.

Vibrate the hopper and pass through the spring setting in the frame, vibrate the hopper bottom and be the inclined plane for the one side of export, install inertial vibrator I in the inclined plane outside.

The discharge gate that vibrates the hopper is equipped with the unloading baffle of liftable to control load and ejection of compact speed, be equipped with the rack on the unloading baffle, and be equipped with gear and drive gear pivoted crank on vibrating the hopper, the gear with rack toothing.

The distributing device is an impeller, and the impeller is driven to rotate by a corresponding distributing motor.

The material distribution mechanism further comprises a material distribution conveying mesh belt, and the material distribution conveying mesh belt horizontally conveys the titanium sponge discharged by the vibration hopper to the sorting mechanism.

The sorting mechanism comprises a groove-shaped conveying crawler belt which is obliquely arranged, the lowest end of the groove-shaped conveying crawler belt is located below an outlet of the distributing mechanism, and the highest end of the groove-shaped conveying crawler belt is located above a feed inlet of the particle size screening device.

The particle size sieving device comprises a screen, a lower chamber, an upper discharge port and a lower discharge port, wherein the upper discharge port is positioned at one side of the screen, large-particle titanium sponge on the screen is discharged into a corresponding container through the upper discharge port, the lower discharge port is arranged at one side of the lower chamber, and small-particle titanium sponge passing through meshes of the screen enters the lower chamber and is discharged into the corresponding container through the lower discharge port; the bottom of the lower cavity is mounted on the fixed support of the screening device through a spring, and an inertial vibrator II is arranged on the outer side face of the lower cavity.

The secondary titanium sponge sorting and screening device further comprises a feeding mechanism, and the feeding mechanism supplies materials for the vibration hopper.

The feeding mechanism comprises a feeding roller way, a lifting mechanism, a track and a feeding trolley, wherein the feeding roller way is horizontally arranged and used for feeding the titanium sponge barrel into the feeding trolley, one end, far away from the vibration hopper, of the bottom of the feeding trolley is rotatably connected onto the lifting mechanism, one end, close to the vibration hopper, of the feeding trolley is arranged on the track in a rolling mode, the track is composed of a vertical section and a horizontal section, and the horizontal section is located at the top of the track and located above a feeding hole of the vibration hopper.

A secondary titanium sponge sorting and screening method is carried out by using the secondary titanium sponge sorting and screening device and comprises the following steps:

firstly, transporting a titanium sponge barrel filled with titanium sponge to a feeding roller way, pushing the titanium sponge barrel into a feeding trolley, lifting the feeding trolley to a horizontal section of a track through a feeding motor, then continuously lifting to lift one end of the trolley far away from a vibration hopper, pouring the titanium sponge into the vibration hopper, then reversely rotating the feeding motor, descending the feeding trolley to the position of the feeding roller way, stopping, and waiting for next feeding;

secondly, vibrating a hopper to perform vibration blanking, uniformly paving the titanium sponge on a cloth conveying mesh belt in a set thickness through a material distributor, and conveying the titanium sponge passing through the material distributor to a magnetic separation device through the cloth conveying mesh belt;

thirdly, the titanium sponge falls into a trough type conveying crawler belt after being subjected to magnetic separation, material selecting stations are arranged on two sides of the trough type conveying crawler belt, manual sorting operation is carried out, hook-shaped tools are used for stirring titanium sponge blocks in grooves of the trough type conveying crawler belt, and defective titanium sponge is picked out;

fourthly, the sorted titanium sponge is conveyed to a particle size sieving device, the titanium sponge is fed to a screen through a feeding hole in the top of the particle size sieving device, titanium sponge particles are sieved along the vibrating screen, and the titanium sponge meeting the particle size requirement after being sieved is discharged to an upper discharging hole through the surface of the screen and is collected by a corresponding container; the small-particle titanium sponge passing through the meshes of the screen is discharged to a lower discharge hole through a lower cavity and enters a corresponding container for collection.

The invention discloses a full-flow titanium sponge sorting and screening device, relates to the processes of titanium sponge feeding, material distribution, material selection, screening and barreling, overcomes the defects of the prior art, solves the problems of high labor intensity and low efficiency of secondary titanium sponge sorting, achieves the aim of screening the granularity of titanium sponge according to actual requirements, and provides high-quality titanium sponge for smelting high-end titanium materials.

The invention has the following innovation points and advantages: the device integrates the functions of feeding, distributing, selecting, screening and barreling, realizes automatic feeding, distributing, screening and barreling, and greatly reduces the labor intensity of workers; the device can realize continuous and stable whole material selecting and screening process by adjusting the height of the blanking baffle, the vibration frequency of the hopper, the rotation speed of the distributing device, the speed of the material distributing and conveying net belt and the speed of the material selecting and conveying crawler belt, thereby greatly improving the production efficiency; the device can efficiently remove the defective titanium sponge in the original titanium sponge and obtain high-quality titanium sponge with granularity meeting the use requirement; the device has simple structure, good stability and easy operation and implementation, and can realize stable batch production; the titanium sponge after secondary material selection and screening by the device can remove N, O-rich impurity elements, small particles or powder titanium sponge with the diameter less than or equal to 3mm, titanium ingots with low impurity content and uniform components can be obtained after smelting, and metallurgical defects in the ingots can be effectively reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a front view of a particle size screen of the present invention;

FIG. 3 is a side view of a particle size screen of the present invention;

FIG. 4 is a top view of a particle size screen of the present invention;

the labels in the figure are: 1. a feeding roller way; 2. a feeding motor; 3. a feeding trolley; 4. vibrating the hopper; 5. a hopper spring set; 6. a blanking baffle; 7. a cloth motor; 8. a distributing device; 9. a cloth conveying mesh belt; 10. an inertial vibrator I; 11. a transport mesh belt motor; 12. a magnetic separation device; 13. a trough-type conveyor belt; 14. a material selecting station; 15. a slot-type conveying crawler motor; 16. a particle size classifier; 17. a screen fixing bracket; 18. a screen spring pack; 19. a lower discharge hole; 20. a feeding hole and a discharging hole; 21. a metal screen; 22. a screen mesh hold down screw; 23. inertial vibrators II, 24 and a track.

Detailed Description

The present invention will be described in further detail with reference to the following drawings and examples, but the invention is not limited thereto.

Referring to the attached drawings, the secondary titanium sponge sorting and screening device comprises a feeding mechanism, a vibration hopper 4, a material distribution mechanism, a sorting mechanism and a granularity screening device 16, wherein the feeding mechanism, the vibration hopper 4, the material distribution mechanism, the sorting mechanism and the granularity screening device 16 are sequentially arranged in a front-to-back connection mode according to working procedures.

The feeding mechanism comprises a feeding roller way 1, a lifting mechanism, a track 24 and a feeding trolley 3, wherein the feeding roller way 1 consists of a plurality of roller ways arranged on the ground, each roller way is rotatably arranged on a corresponding support, and the roller ways can rotate freely or can be driven by a driving mechanism to rotate; the secondary material selecting and screening device is provided with a feeding chamber, the tail end of the feeding roller bed 1 extends into the feeding chamber, the lifting mechanism is positioned in the feeding chamber and comprises a feeding motor 2 and two sets of chain wheel and chain mechanisms, the chain wheel and chain mechanisms are composed of upper chain wheels, lower chain wheels and chains, upper chain wheels in the two sets of chain wheel and chain mechanisms are connected through a transmission shaft, and the transmission shaft is driven to rotate by the feeding motor 2 at the top of the feeding chamber; the rail 24 is arranged at the tail end of the feeding roller way 1 and consists of a vertical section and a horizontal section, and the horizontal section is positioned at the top end of the rail 24 and extends out of the feeding hole of the oscillating hopper 4 towards the oscillating hopper 4; the bottom of the feeding trolley 3 is rotatably connected to the lifting mechanism at the end far away from the vibration hopper 4, and the end close to the vibration hopper 4 is arranged on the rail 24 in a rolling mode through the idler wheels.

When the lifting mechanism works, the feeding trolley 3 is lifted upwards from the position of the feeding roller way 1, after the roller of the feeding trolley 3 enters the horizontal section of the track 24, the feeding trolley 3 is continuously lifted, and because the vertical position of the roller is fixed, the feeding trolley 3 starts to turn over, sponge titanium in the feeding trolley is poured into the vibration hopper 4 below, and feeding is completed.

The titanium sponge to be screened by the secondary material selection is arranged in a titanium sponge barrel and is pushed into the feeding trolley 3 along the feeding roller way 1.

The vibrating hopper 4 is integrally trapezoidal, one inclined plane is an upper inclined plane provided with a feeding hole, the other inclined plane is a lower inclined plane provided with an inertial vibrator I10, the bottom of the lower inclined plane, which is opposite to the lower inclined plane, is provided with a discharging hole, and a discharging baffle 6 which can move up and down is arranged at the discharging hole; the whole vibrating hopper 4 is supported on the inner wall of the feeding chamber through a hopper spring set 5.

The unloading baffle 6 slides and sets up in the spout of discharge gate department, and the lateral surface of unloading baffle 6 is equipped with the rack, is equipped with drive gear pivoted crank on vibrating hopper 4, the gear pass through the support mounting, with rack toothing constitutes gear rack mechanism, rotates the crank, through the cooperation of gear and rack, just can realize unloading baffle 6 and move about from top to bottom along the spout, and then the opening size of control discharge gate, realizes the regulation of unloading volume and unloading speed.

The cloth mechanism includes cloth conveying mesh belt 9, distributing device 8 and magnetic separation device 12, cloth mechanism still include with the casing that the material loading room is connected and is linked together, cloth conveying mesh belt 9 tensioning is on sprocket chain mechanism, and this sprocket chain mechanism is driven by the conveying mesh belt motor 11 that corresponds, and cloth conveying mesh belt 9 one end stretches into the material loading room, and is located vibrate the below of 4 discharge gates of hopper to accept the titanium sponge, this end is the entry of cloth mechanism, and cloth conveying mesh belt 9 other end is located the export top of casing, the export of casing is the export of cloth mechanism, the position of cloth conveying mesh belt 9 is higher than material loading roller way 1.

The distributing device 8 is an impeller which is rotatably arranged, three to eight scraping blades are arranged on the impeller, the rotation of the impeller is realized by a distributing motor 7, and the height of the distributing device 8 is set to be 30-60 mm. The cloth motor 7 is fixed outside the casing, and the impeller evenly tiles the titanium sponge on the cloth conveying mesh belt 9 in the rotation process to subsequent magnetic separation is convenient for.

The magnetic separation device 12 is located above the cloth conveying mesh belt 9, can be preferably arranged above the outlet of the machine shell, and is provided with magnets along the width direction of the conveying mesh belt, so that preliminary magnetic separation of titanium sponge is realized, and iron impurities or iron-rich titanium sponge are removed. The titanium sponge falls into a groove-shaped conveying crawler belt 13 below after being magnetically separated.

The sorting mechanism comprises a groove-shaped conveying crawler belt 13 which is obliquely arranged, the groove-shaped conveying crawler belt 13 is arranged in a corresponding shell, the lower half part of the shell in the length direction is open, an operator sorts the sponge titanium on the groove-shaped conveying crawler belt 13 manually through the opening on a material selecting station 14, and the material selecting station 14 is located on one side or two sides of the shell. Cell type conveying track motor 15 is installed at this casing top, realizes the operation of cell type conveying track 13, and the casing top still is equipped with sorting mechanism's discharge gate, cell type conveying track 13 least significant end is located the below of cloth mechanism export to accept the titanium sponge, cell type conveying track 13 highest significant end is located sorting mechanism's discharge gate position, and the titanium sponge through artifical letter sorting falls into the granularity screening ware 16 of below and carries out the granularity screening.

Particle size screen 16 includes metal mesh 21, top discharge mouth 20, bottom discharge mouth 19, lower cavity and screen separator fixed bolster 17, metal mesh 21 covers the uncovered position of cavity down, and the chute is connected to metal mesh 21 one end as top discharge mouth 20, another chute is connected to one side of lower cavity, and 19 as bottom discharge mouths are connected to two chutes and are 90 settings, when using, place a container that holds titanium sponge under every chute. The bottom of the lower cavity is supported on a sieving device fixing support 17 through a sieving device spring group 18, and two inertia vibrators II 23 are arranged at the bottom of the lower cavity to perform vibrating sieving on the titanium sponge. And a screen mesh compression screw 22 and a lifting ring are also arranged at the edge of the opening of the lower chamber.

The secondary titanium sponge sorting and screening method by using the secondary titanium sponge sorting and screening device provided by the invention specifically comprises the following operations:

step one, feeding: and (3) transporting the titanium sponge barrel filled with the titanium sponge to a feeding roller way 1, opening the barrel cover, and turning the sealed plastic bag open and hooping the sealed plastic bag by using a barrel hoop. Push the titanium sponge bucket in the material loading dolly 3 to promote the dolly through material loading motor 2, to the horizontal segment of track 24, then continue to promote, keep away from the one end of shaking hopper 4 with raising the dolly, empty the titanium sponge into in shaking hopper 4, then material loading motor 2 reverses, descends material loading dolly 3 to material loading roll table 1 position and stops, waits for the material loading next time.

Step two, material distribution: and opening a blanking baffle 6, an inertial vibrator I10, a cloth motor 7 and a conveying mesh belt motor 11, vibrating a hopper 4 to begin to vibrate for blanking, and uniformly paving the titanium sponge to be selected on a cloth conveying mesh belt 9 in a certain thickness through a distributor 8. The vibration frequency of the inertial vibrator I10, the rotating speed of the distributing device 8 and the rotating speed of the cloth conveying net belt motor 11 are adjusted to enable the discharging speed, the distributing speed and the conveying speed to be matched, so that the material is not blocked or disconnected in the operation process, and the secondary material selecting and screening process is continuously and normally operated.

Thirdly, selecting materials: the titanium sponge falls into cell type conveying track 13 after the magnetic separation, and cell type conveying track 13 both sides set up sorting station 14, carry out manual sorting operation, use hook-shaped instrument to the titanium sponge piece stirring in the cell type conveying track 13 slot, pick out the defect titanium sponge, adjust cell type conveying track 13 speed, make it satisfy with the speed requirement of cloth conveying mesh belt 9 unloading and manual sorting, ensure going on smoothly of manual sorting work.

Step four, screening: the sorted titanium sponge is conveyed to a titanium sponge granularity sieving device 16, the titanium sponge is fed to a metal screen 21 through a feeding hole in the top of the granularity sieving device 16, titanium sponge particles are sieved along the vibrating metal screen 21, and the titanium sponge meeting the granularity requirement after being sieved is discharged to an upper discharging hole 20 through the surface of the metal screen 21 and is collected by a corresponding container; the sieved small-particle titanium sponge is discharged to a lower discharge port 19 through a lower chamber of a metal screen 21 and is collected by a corresponding container.

The device is adopted to carry out secondary screening and material selection on different sponge titanium, and the screening result is analyzed, and the specific process is as follows.

In test example 1, the device is adopted to perform secondary material selection and screening on 0A-grade titanium sponge, wherein the magnetic separation device requires that the residual magnetic induction intensity of a magnet is more than or equal to 12KGs, the coercive force is more than or equal to 11KOe, the height of a blanking baffle at a discharge port of a vibration hopper is 40mm, the height of a distributor is 30mm, the mesh number of a metal net is 6, and the mesh size is 3mm, 50 tons of 0A-grade titanium sponge is subjected to secondary material selection and screening, the original titanium sponge has the particle size of 0-25.4mm, the O content of 0.043-0.049% (weight percentage, the same applies below), the N content of 0.004-0.006%, the weight of defect titanium sponge is 411KG and the proportion is 0.82%, the small particles with the particle size smaller than 3mm and the weight 2537 of powder titanium sponge have the KG proportion of 5.1%, the finished product titanium sponge has the particle size of 3 ~ 25.4.4 mm, and the content of impurities is higher in Table 1.

Experimental example 2, the device is adopted to perform secondary material selection and screening on 0-grade sponge titanium, wherein the magnetic separation device requires that the residual magnetic induction intensity of a magnet is more than or equal to 12KGs, the coercive force is more than or equal to 11KOe, the height of a blanking baffle at a discharge port of a vibration hopper is 40mm, the height of a distributor is 30mm, the mesh number of a metal net is 6, and the mesh size is 3mm, 50 tons of 0-grade sponge titanium is subjected to secondary material selection and screening, the original sponge titanium is 0-25.4mm in particle size, the O content is 0.047-0.056%, the N content is 0.005-0.009%, the weight of defect sponge titanium 465KG is selected after screening, the proportion is 0.93%, the weight of small particles and powder titanium sponge titanium with the particle size smaller than 3mm is 2743KG, the proportion is 5.4%, the particle size of the finished product sponge titanium is 3 ~ 25.4.4 mm, specifically shown in Table 1, the O content of the sponge titanium with the particle size of less.

Test example 3, the device is adopted to perform secondary material selection and screening on the grade 1 titanium sponge, wherein the magnetic separation device requires that the residual magnetic induction intensity of a magnet is more than or equal to 12KGs, the coercive force is more than or equal to 11KOe, the height of a blanking baffle at a discharge port of a vibration hopper is 40mm, the height of a distributor is 30mm, the mesh number of a metal net is 6, and the mesh size is 3mm, 50 tons of grade 0A titanium sponge is subjected to secondary material selection and screening, the particle size of the original titanium sponge is 0-25.4mm, the O content is 0.058-0.072%, the N content is 0.008-0.012%, the weight 477KG of the defective titanium sponge is selected after screening, the proportion is 0.95%, the O content of the titanium sponge with the particle size less than 3mm and the weight 2801KG of the powder titanium sponge with the proportion of 5.6%, the particle size of the finished product titanium sponge is 3 ~ 25.4.4 mm, and the content of the titanium sponge with the particle size of less than or.

According to the test results of the test example, the defect sponge titanium existing in the original sponge titanium, the small particles rich in N, O impurity elements and the powder sponge titanium can be effectively removed by utilizing the sorting and screening operation of the device, the component uniformity of the sponge titanium is improved, and the quality of the sponge titanium is obviously improved.