CN112044745B - Titanium alloy powder screening plant - Google Patents
Titanium alloy powder screening plant Download PDFInfo
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- CN112044745B CN112044745B CN202010895330.7A CN202010895330A CN112044745B CN 112044745 B CN112044745 B CN 112044745B CN 202010895330 A CN202010895330 A CN 202010895330A CN 112044745 B CN112044745 B CN 112044745B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/4609—Constructional details of screens in general; Cleaning or heating of screens constructional details of screening surfaces or meshes
- B07B1/4663—Multi-layer screening surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B2201/00—Details applicable to machines for screening using sieves or gratings
- B07B2201/04—Multiple deck screening devices comprising one or more superimposed screens
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Abstract
The invention provides a titanium alloy powder screening device, which relates to the technical field of 3D printing powder screening production and comprises a screening box body, wherein the screening box body is in a hollow cylindrical shape, a storage blanking device and a screening collection device are arranged in the screening box body from top to bottom, the storage blanking device comprises a charging bucket, a left rotating shaft and a right rotating shaft are symmetrically arranged on the outer wall of the charging bucket, the charging bucket is rotatably connected to the inner wall of the screening box body through the left rotating shaft and the right rotating shaft, a feeding hose is arranged at the top of the charging bucket, the inlet end of the feeding hose penetrates through the top of the screening box body to the outside of the screening box body, a step pipe is arranged at the bottom of the charging bucket, the step pipe is communicated with the inside of the charging bucket, a plurality of buffer inner cavity plates are uniformly distributed on the inner wall. The invention has the advantages of multi-stage screening of the titanium alloy powder, improvement of the screening effect, prevention of blockage in the screening process and the like.
Description
Technical Field
The invention relates to the technical field of 3D printing powder screening production, in particular to a titanium alloy powder screening device.
Background
Metal 3D printing technology, being the leading and most promising technology in the entire 3D printing system, is an important direction of development for advanced manufacturing technologies. The flowability and uniformity of titanium alloy metal powders are key properties of powder materials for 3D printing technology. In order to ensure the purity of the titanium alloy metal powder, a screening step is required to separate the large-particle-size metal powder mixed in the powder.
At present most screening plant all makes titanium alloy powder directly fall to single or a plurality of rigidity screen cloth or sieve and sieves to make when screening easily produce the jam phenomenon, need change the screen cloth many times when serious when the screening, increased labour cost, owing to easily take place the jam when the screening, the screening effect can be discounted greatly, needs to carry out further improvement to screening plant to this.
Disclosure of Invention
The invention aims to provide a titanium alloy powder screening device which can carry out multi-stage screening on titanium alloy powder, improves the screening effect and can prevent the blockage phenomenon in the screening process.
In order to solve the technical problem, the invention provides a titanium alloy powder screening device, which comprises a screening box body, wherein the screening box body is in a hollow cylindrical shape, a storage blanking device and a screening collection device are arranged in the screening box body from top to bottom, the storage blanking device comprises a charging bucket, a left rotating shaft and a right rotating shaft are symmetrically arranged on the outer wall of the charging bucket, the charging bucket is rotatably connected to the inner wall of the screening box body through the left rotating shaft and the right rotating shaft, a feeding hose is arranged at the top of the charging bucket, the inlet end of the feeding hose penetrates through the top of the screening box body to the outside of the screening box body, a step pipe is arranged at the bottom of the charging bucket and is communicated with the inside of the charging bucket, a plurality of buffer inner cavity plates are uniformly distributed on the inner wall of the screening box body along the circumferential direction, the buffer inner cavity plates are in a hollow arc shape, the buffer inner, the output shaft of the variable frequency motor movably penetrates through the outer wall of the screening box body and is fixedly connected with the left rotating shaft, the screening and collecting device comprises a filter cartridge, the filter cartridge is fixedly arranged below the step pipe, a plurality of first screening discs, second screening discs and material receiving plates are sequentially arranged below the filter cartridge from top to bottom in parallel at intervals, the peripheral walls of the first screening discs, the second screening discs and the material receiving plates are all attached to the inner wall of the screening box body, a stirring motor is fixedly arranged on the top surface of the second screening disc, a protective cover is sleeved outside the stirring motor, a spiral blade is fixedly arranged on the output shaft of the stirring motor along the length direction and is of a screen mesh structure, a circular cylinder body is sleeved outside the spiral blade, two ends of the circular cylinder body are open, the outer side edge of the spiral blade is in contact with the inner wall of the circular cylinder body, and one end of the circular cylinder body fixedly penetrates through the first screening disc at the lowest layer, the fixed first screening dish that runs through the topmost layer of the other end of circular cylinder body, and be linked together with the inside of cartridge filter, a plurality of blown down tanks of circumference equipartition are followed on the outer wall of the other end of circular cylinder body, the bottom opening part of blown down tank is provided with the baffle box, and the bottom surface in the baffle box is the slope form, helical blade's one end flushes with the blown down tank, helical blade's the other end flushes with the one end opening of circular cylinder body, be provided with a plurality of discharging pipes along the circumference direction on the bottom surface of connecing the flitch, first screening dish, still incline respectively on the lateral wall of second screening dish and connecing the flitch and be provided with first anti-overflow pipe, second anti-overflow pipe and third anti-overflow pipe, be provided.
Preferably, be provided with left sleeve pipe and right sleeve pipe on the inner wall at screening box top respectively, left sleeve pipe and right sleeve pipe are the hollow tube, the one end of left axis of rotation and right axis of rotation is all fixed to be set up on the outer wall of storage bucket, the other end of left axis of rotation and right axis of rotation rotates respectively and sets up in left sleeve pipe and right sleeve pipe, inverter motor's output shaft activity in proper order runs through the outer wall and the left sleeve pipe of screening box, and with left axis of rotation fixed connection, when being convenient for drive storage bucket through inverter motor and using left axis of rotation and right axis of rotation as the axis of rotation tilting swing from top to bottom, can improve the stability of storage bucket when reciprocating swing from side to side.
Preferably, the filter cartridge comprises an upper filter plate and a lower collecting plate, the upper filter plate and the lower collecting plate are both of hollow round table-shaped structures, the upper filter plate and the lower collecting plate are sequentially connected from top to bottom, the large-diameter ends of the upper filter plate and the lower collecting plate are both open, the upper filter plate is connected with the opening of the large-diameter end of the lower collecting plate, the joint of the upper filter plate and the lower collecting plate is jointed with the inner wall of the screening box body, the small-diameter end and the side surface of the upper filter plate are both of screen mesh structures, the other end of the circular cylinder body is arranged on the small-diameter end of the lower collecting plate and is communicated with the inside of the lower collecting plate, the titanium alloy powder is screened by the side surface and the top surface of the upper filter plate and then enters the lower collection plate, the upper filter plate is of a hollow truncated cone-shaped structure, so that the residence time of titanium alloy powder on the upper filter plate can be increased, and the screening effect can be improved; the lower collecting plate is of a hollow round table structure, so that titanium alloy powder screened by the upper filter plate can be conveniently collected.
Preferably, the outside of the screening box body is further provided with an inert gas tank, an electromagnetic valve is arranged on an output port of the inert gas tank, an inert gas inlet pipe is arranged on the electromagnetic valve, one end of the inert gas inlet pipe is connected with the electromagnetic valve, the other end of the inert gas inlet pipe penetrates through the outer wall of the screening box body and is located between the step pipe and the upper filter plate, an airflow dispersing tablet is fixedly arranged at the other end of the inert gas inlet pipe, and the inert gas is discharged through the airflow dispersing tablet, so that the titanium alloy powder can be fully contacted during screening, and the protection effect on the titanium alloy powder is improved.
Preferably, the air current dispersion tablet includes the cavity disc, the top surface of cavity disc is the hemisphere form, the cavity disc passes through the fixed setting on the inner wall of screening box of a plurality of connecting rods, the other end of inert gas intake pipe runs through the top surface of cavity disc, a plurality of shunt tubes of circumference direction equipartition on the bottom surface of cavity disc, the one end slope of shunt tube sets up on the bottom surface of cavity disc, the other end of shunt tube is for sealing the form, be provided with a plurality of ventholes along length direction on the outer wall of shunt tube, and the venthole all faces the inner wall direction of screening box, inert gas passes through the venthole discharge on the outer wall of shunt tube, titanium alloy powder who goes out under the step pipe can fully contact, the protective effect to titanium alloy powder has been improved.
Preferably, first screening dish, second screening dish and helical blade mesh number are the same, and go up filter, helical blade and connect the mesh number of flitch to increase in proper order for titanium alloy powder enters into the circular cylinder body by lower collecting plate after last filter screening, can sieve through helical blade and second screening dish again in proper order, or titanium alloy powder discharges to first screening dish on through the baffle box, sieves through first screening dish and second screening dish again in proper order, all can reach the same screening effect.
Preferably, first screening dish, second screening dish and connect the flitch to be top surface open-ended slot-shaped structure, the one end of first anti-overflow pipe, second anti-overflow pipe and third anti-overflow pipe runs through first screening dish, the inner wall of second screening dish and connecing the flitch respectively, first anti-overflow pipe, the other end of second anti-overflow pipe and third anti-overflow pipe all runs through to the outside of screening box, first anti-overflow pipe, the other end of second anti-overflow pipe and third anti-overflow pipe still all is provided with the bleeder valve, and first anti-overflow pipe, second anti-overflow pipe and third anti-overflow pipe are transparent body structure, the setting of first anti-overflow pipe, second anti-overflow pipe and third anti-overflow pipe can prevent to a certain extent that the titanium alloy powder that is detained from piling up and producing the jam on first screening dish, second screening dish and connecing the flitch.
Preferably, the one end of first anti-overflow pipe is located and is close to first screening dish open-top's lateral wall, and the one end of second anti-overflow pipe is located and is close to second screening dish open-top's lateral wall, and the one end of third anti-overflow pipe is located and is close to and connect material board open-ended lateral wall, and the titanium alloy powder that first anti-overflow pipe, second anti-overflow pipe and third anti-overflow pipe set up and can prevent to a certain extent that is detained piles up and produces the jam on first screening dish, second screening dish and connect the flitch.
Preferably, the movable door body includes the upper door body and the lower door body, the upper door body and the lower door body all with the outer wall shape looks adaptation of screening box, and the position of the upper door body is corresponding with the junction of last filter and lower collecting plate, the top of the lower door body is corresponding with the bottom open-ended position of blown down tank, the bottom of the lower door body flushes with the bottom surface that connects the flitch, and the upper door body and the lower door body are transparent material and make, be convenient for open the upper door body and the lower door body is respectively to the titanium alloy powder that is detained between the inner wall of upper filter and screening box, first screening dish, second screening dish and connect the titanium alloy powder that is detained on the flitch and clear up.
The invention has the beneficial effects that:
(1) through the swinging blanking of the storage blanking device, the blockage during blanking can be avoided, and the titanium alloy powder is screened and protected by the step-by-step screening of the filter cartridge, the first screening disc and the second screening disc, and meanwhile, inert gas is introduced during blanking and screening, so that the quality of the titanium alloy powder after screening is improved;
(2) the stirring motor drives the helical blade to rotate, so that the titanium alloy powder is kept uniform in the process of entering the lower collecting plate through the upper filtering plate and then entering the circular cylinder, the circular cylinder is prevented from being blocked by the titanium alloy powder, and meanwhile, the helical blade can play a role in screening the titanium alloy powder;
(3) the titanium alloy powder can be directly sieved by the helical blade and the second sieving disc or discharged onto the first sieving disc through the material guide groove and then sequentially sieved by the first sieving disc and the second sieving disc, the same sieving effect can be achieved by the two discs, and the titanium alloy powder can be subjected to shunting sieving when the titanium alloy powder is excessively discharged, so that the sieving effect can be improved;
(4) the inert gas is discharged through the air outlet on the outer wall of the flow dividing pipe, can be in full contact with titanium alloy powder discharged from the step pipe, improves the protection effect on the titanium alloy powder, protects the titanium alloy powder in screening, and can play a role in stirring the titanium alloy powder in the discharging process through the inert gas, so that the screening effect is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a titanium alloy powder screening device according to the present invention;
FIG. 2 is a schematic structural view of a material storage and discharging device of the titanium alloy powder screening device of the invention;
FIG. 3 is a schematic structural diagram of an airflow dispersing tablet of a titanium alloy powder screening device according to the present invention;
FIG. 4 is a schematic view of the position of a discharge chute of the titanium alloy powder screening device of the present invention;
the reference signs are: 1. screening the box body; 11. a left sleeve; 12. a right sleeve; 13. a movable door body; 131. an upper door body; 132. a lower door body; 2. a material storing and discharging device; 21. a charging bucket; 22. a left rotating shaft; 23. a right rotating shaft; 24. a feed hose; 25. a stepped tube; 26. a buffer inner cavity plate; 27. a variable frequency motor; 3. a screening and collecting device; 31. a filter cartridge; 311. an upper filter plate; 312. a lower collection plate; 32. a first screening pan; 321. a first overflow prevention pipe; 33. a second screening pan; 331. a second overflow prevention pipe; 34. a material receiving plate; 35. a stirring motor; 351. a helical blade; 352. a circular cylinder; 353. a protective cover; 36. a discharge chute; 37. a material guide chute; 38. a discharge pipe; 4. an inert gas tank; 41. an electromagnetic valve; 42. an inert gas inlet pipe; 43. airflow dispersing tablets; 431. a hollow disc; 4311. a connecting rod; 432. a shunt tube; 433. an air outlet; 5. a discharge valve.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1-4, a titanium alloy powder screening device according to this embodiment includes a screening box 1, the screening box 1 is a hollow cylinder, a storage feeding device 2 and a screening collection device 3 are disposed from top to bottom in the screening box 1, the storage feeding device 2 includes a material barrel 21, a left rotating shaft 22 and a right rotating shaft 23 are symmetrically disposed on an outer wall of the material barrel 21, the material barrel 21 is rotatably connected to an inner wall of the screening box 1 through the left rotating shaft 22 and the right rotating shaft 23, a feeding hose 24 is disposed on a top of the material barrel 21, an inlet end of the feeding hose 24 penetrates through the top of the screening box 1 to an outer portion of the screening box 1, a step pipe 25 is disposed at a bottom of the material barrel 21, the step pipe 25 is communicated with an inner portion of the material barrel 21, a plurality of buffer inner cavities 26 are uniformly distributed on the inner wall of the screening box 1 along a circumferential direction, the buffer, the buffer inner cavity plate 26 and the charging bucket 21 are arranged at intervals, the outer wall of the screening box body 1 is fixedly provided with a variable frequency motor 27, the output shaft of the variable frequency motor 27 movably penetrates through the outer wall of the screening box body 1 and is fixedly connected with the left rotating shaft 22, the screening and collecting device 3 comprises a filter cylinder 31, the filter cylinder 31 is fixedly arranged below the stepped pipe 25, a plurality of first screening disks 32, second screening disks 33 and material receiving plates 34 are sequentially arranged below the filter cylinder 31 in parallel at intervals from top to bottom, the outer peripheral walls of the first screening disks 32, the second screening disks 33 and the material receiving plates 34 are all attached to the inner wall of the screening box body 1, the top surface of the second screening disk 33 is fixedly provided with a stirring motor 35, the outer part of the stirring motor 35 is sleeved with a protective cover 353, the output shaft of the stirring motor 35 is fixedly provided with a spiral blade 351 along the length direction, and the spiral blade 351 is of a, the outside cover of helical blade 351 is equipped with circular barrel 352, the both ends of circular barrel 352 are the open form, helical blade 351's outside limit contacts with the inner wall of circular barrel 352, and the fixed first screening dish 32 that runs through the lowest layer of one end of circular barrel 352, the fixed first screening dish 32 that runs through the top layer of the other end of circular barrel 352, and be linked together with the inside of cartridge filter 31, a plurality of blown down tanks 36 along circumference equipartition on the outer wall of the other end of circular barrel 352, the bottom opening part of blown down tank 36 is provided with baffle box 37, and the bottom surface in baffle box 37 is the slope form, helical blade 351's one end flushes with blown down tank 36, helical blade 351's the other end and the one end opening of circular barrel 352, be provided with a plurality of discharging pipes 38 along circumference direction on the bottom surface of material receiving plate 34, still incline respectively on the lateral wall of first screening dish 32, second screening dish 33 and material receiving plate 34 and be provided with first anti-overflow, The second overflow prevention pipe 331 and the third overflow prevention pipe, and a movable door 13 is arranged on the outer wall of the screening box body 1.
The inner wall of the top of the screening box body 1 is respectively provided with a left sleeve 11 and a right sleeve 12, the left sleeve 11 and the right sleeve 12 are hollow tubes, one end of a left rotating shaft 22 and one end of a right rotating shaft 23 are both fixedly arranged on the outer wall of the charging basket 21, the other end of the left rotating shaft 22 and the other end of the right rotating shaft 23 are respectively rotatably arranged in the left sleeve 11 and the right sleeve 12, an output shaft of a variable frequency motor 27 sequentially and movably penetrates through the outer wall of the screening box body 1 and the left sleeve 11 and is fixedly connected with the left rotating shaft 22, so that when the charging basket 21 is driven by the variable frequency motor 27 to obliquely swing up and down by taking the left rotating shaft 22 and the right rotating shaft 23 as rotating shafts, the stability of the charging basket 21 during left-right reciprocating swing can be improved, the filter cylinder 31 comprises an upper filter plate 311 and a lower collecting plate 312, the upper filter plate 311 and the lower collecting plate 312 are, the large-diameter ends of the upper filter plate 311 and the lower collection plate 312 are both in an open shape, the upper filter plate 311 is connected with the large-diameter end opening of the lower collection plate 312, the joint of the upper filter plate 311 and the lower collection plate 312 is attached to the inner wall of the screening box 1, the small-diameter end and the side surface of the upper filter plate 311 are both in a screen-mesh structure, the other end of the circular cylinder 352 is arranged on the small-diameter end of the lower collection plate 312 and is communicated with the inside of the lower collection plate 312, so that titanium alloy powder enters the lower collection plate 312 after being screened through the side surface and the top surface of the upper filter plate 311, and the residence time of the titanium alloy powder on the upper filter plate 311 can be increased due to the fact that the upper filter plate 311 is in a hollow circular truncated; the lower collecting plate 312 is a hollow circular truncated cone-shaped structure, which is convenient for collecting the titanium alloy powder screened by the upper filter plate 311, the exterior of the screening box 1 is also provided with an inert gas tank 4, an output port of the inert gas tank 4 is provided with an electromagnetic valve 41, the electromagnetic valve 41 is provided with an inert gas inlet pipe 42, one end of the inert gas inlet pipe 42 is connected with the electromagnetic valve 41, the other end of the inert gas inlet pipe 42 penetrates through the outer wall of the screening box 1 and is positioned between the step pipe 25 and the upper filter plate 311, the other end of the inert gas inlet pipe 42 is fixedly provided with an airflow dispersion sheet 43, the inert gas is discharged through the airflow dispersion sheet 43, so that the titanium alloy powder can be fully contacted during screening, the protection effect on the titanium alloy powder is improved, the airflow dispersion sheet 43 comprises a hollow disc 431, the top surface of the hollow disc 431 is hemispherical, the hollow disc 431 is fixedly arranged on the inner wall of the, the other end of the inert gas inlet pipe 42 penetrates through the top surface of the hollow disc 431, a plurality of shunt pipes 432 are uniformly distributed on the bottom surface of the hollow disc 431 along the circumferential direction, one end of each shunt pipe 432 is obliquely arranged on the bottom surface of the hollow disc 431, the other end of each shunt pipe 432 is closed, a plurality of air outlet holes 433 are formed in the outer wall of each shunt pipe 432 along the length direction, the air outlet holes 433 face the inner wall direction of the screening box body 1, inert gas is discharged through the air outlet holes 433 in the outer wall of each shunt pipe 432 and can be fully contacted with titanium alloy powder discharged from the stepped pipe 25, the protection effect on the titanium alloy powder is improved, the mesh numbers of the first screening disc 32, the second screening disc 33 and the spiral blades 351 are the same, the mesh numbers of the upper filter plate 311, the spiral blades 351 and the material receiving plate 34 are sequentially increased, and the titanium alloy powder enters the circular barrel 352 from the lower collecting plate 312 after being screened, The titanium alloy powder can be sequentially screened by the helical blade 351 and the second screening disk 33, or the titanium alloy powder is discharged onto the first screening disk 32 through the guide chute 37 and then sequentially screened by the first screening disk 32 and the second screening disk 33, the same screening effect can be achieved, the first screening disk 32, the second screening disk 33 and the material receiving plate 34 are of groove-shaped structures with open top surfaces, one ends of the first anti-overflow pipe 321, the second anti-overflow pipe 331 and the third anti-overflow pipe respectively penetrate through the inner walls of the first screening disk 32, the second screening disk 33 and the material receiving plate 34, the other ends of the first anti-overflow pipe 321, the second anti-overflow pipe 331 and the third anti-overflow pipe respectively penetrate through the outside of the screening box body 1, the other ends of the first anti-overflow pipe 321, the second anti-overflow pipe 331 and the third anti-overflow pipe are respectively provided with a discharge valve 5, and the first anti-overflow pipe 321, the second anti-overflow pipe 331 and the third anti-overflow pipe are all of transparent pipe body structures, the first overflow preventing pipe 321, the second overflow preventing pipe 331 and the third overflow preventing pipe are arranged to prevent the retained titanium alloy powder from being accumulated on the first screening tray 32, the second screening tray 33 and the material receiving plate 34 to generate blockage to a certain extent, one end of the first overflow preventing pipe 321 is positioned on the side wall close to the top opening of the first screening tray 32, one end of the second overflow preventing pipe 331 is positioned on the side wall close to the top opening of the second screening tray 33, one end of the third overflow preventing pipe is positioned on the side wall close to the part opening of the material receiving plate 34, the first overflow preventing pipe 321, the second overflow preventing pipe 331 and the third overflow preventing pipe are arranged to prevent the retained titanium alloy powder from being accumulated on the first screening tray 32, the second screening tray 33 and the material receiving plate 34 to a certain extent, the movable door body 13 comprises an upper door body 131 and a lower door body 132, the upper door body 131 and the lower door body 132 are matched with the shape of the screening box body 1, and the position of the upper door body 131 corresponds to the connection position of the upper collecting plate 312 and the lower collecting plate 312, the top of the lower door body 132 corresponds to the bottom opening of the discharge chute 36, the bottom of the lower door body 132 is flush with the bottom surface of the material receiving plate 34, and the upper door body 131 and the lower door body 132 are made of transparent materials, so that the upper door body 131 and the lower door body 132 can be opened to respectively clean the titanium alloy powder retained between the upper filter plate 311 and the inner wall of the screening box body 1, the first screening disc 32, the second screening disc 33 and the titanium alloy powder retained on the material receiving plate 34.
The working principle of the invention is as follows: firstly, adding titanium alloy powder into a charging bucket 21 through a feeding hose 24 at the top of the charging bucket 21, starting a variable frequency motor 27, wherein the variable frequency motor 27 can drive the charging bucket 21 to obliquely swing up and down by taking a left rotating shaft 22 and a right rotating shaft 23 as rotating shafts, so that the titanium alloy powder can be uniformly discharged through a step pipe 25 at the bottom of the charging bucket 21; when the charging barrel 21 obliquely swings up and down, the charging barrel 21 can touch the buffering inner cavity plate 26, so that the titanium alloy powder in the charging barrel 21 and the stepped pipe 25 can be vibrated, the titanium alloy powder can not be blocked when being discharged from the stepped pipe 25, and the buffering inner cavity plate 26 is hollow, so that the charging barrel 21 can play a role in buffering when touching the buffering inner cavity plate 26; the titanium alloy powder discharged through the step pipe 25 falls onto the small-diameter end and the side face of the upper filter plate 311, and enters the lower collecting plate 312 after being screened by the small-diameter end and the side face of the upper filter plate 311, and the titanium alloy powder which does not pass through the upper filter plate 311 is screened and stays on the small-diameter end face of the upper filter plate 311 or is distributed on the side face of the upper filter plate 311 and at a position close to the position between the large-diameter end of the upper filter plate 311 and the inner wall of the screening box body 1 because the upper filter plate 311 is of a hollow round table body structure, so that the upper door body 131 can be conveniently opened at the later stage for uniform collection treatment, and meanwhile, the titanium alloy powder which is accumulated in the round barrel 352 and is positioned on the spiral blade 351 and the titanium alloy powder at the discharge chute 36 can be cleaned; because the lower collecting plate 312 is of a hollow circular truncated cone-shaped structure, titanium alloy powder screened by the upper filter plate 311 falls to the small-diameter end of the lower collecting plate 312 along the inner wall of the lower collecting plate 312 and is easier to enter the other end of the circular cylinder 352 in a centralized manner, because the spiral blade 351 is of a screen-shaped structure, the titanium alloy powder can be screened by the spiral blade 351, the titanium alloy powder screened by the spiral blade 351 can fall to the second screening disk 33 through one end of the circular cylinder 352 to be screened, and then falls to the material receiving plate 34 after being screened and is discharged and collected by the material discharge pipe 38; when the height of the titanium alloy powder stored on the helical blade 351 exceeds the height of the discharge chute 36, the titanium alloy powder can be discharged through the guide chute 37, fall onto the first screening disc 32, sequentially pass through the first screening disc 32 and the second screening disc 33 for screening, finally fall onto the material receiving plate 34 and be discharged and collected through the discharge pipe 38, and the titanium alloy powder which cannot pass through the first screening disc 32 and the second screening disc 33 is retained on the first screening disc 32 and the second screening disc 33, so that the lower door body 132 can be opened at the later stage for uniform collection treatment; the rotation of the helical blade 351 can prevent the titanium alloy powder from being blocked when being screened in the circular cylinder 352, and the rotation of the helical blade 351 is beneficial to keeping the titanium alloy powder uniform when falling through the circular cylinder 352; in the blanking process of the titanium alloy powder, the inert gas is discharged through the gas outlet 433 on the outer wall of the flow dividing pipe 432 and can be fully contacted with the titanium alloy powder blanked from the step pipe 25, so that the protection effect on the titanium alloy powder is improved; because first screening dish 32, second screening dish 33 and helical blade 351 mesh number are the same for titanium alloy powder enters into circular barrel 352 by lower collecting plate 312 after last filter 311 sieves in, again in proper order through helical blade 351 and second screening dish 33 and sieves, or titanium alloy powder discharges to first screening dish 32 through baffle box 37 on, again in proper order through first screening dish 32 and second screening dish 33 and sieve, the route of two screenings all can make titanium alloy powder reach the same screening effect, even realize shunting screening when titanium alloy powder unloading is too much, also can avoid the screening in-process to produce blocking phenomenon.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. The utility model provides a titanium alloy powder screening plant which characterized in that: comprises a screening box body (1), the screening box body (1) is in a hollow cylinder shape, a storage blanking device (2) and a screening collection device (3) are arranged in the screening box body (1) from top to bottom, the storage blanking device (2) comprises a charging basket (21), a left rotating shaft (22) and a right rotating shaft (23) are symmetrically arranged on the outer wall of the charging basket (21), the charging basket (21) is rotatably connected to the inner wall of the screening box body (1) through the left rotating shaft (22) and the right rotating shaft (23), a feeding hose (24) is arranged at the top of the charging basket (21), the inlet end of the feeding hose (24) penetrates through the top of the screening box body (1) to the outside of the screening box body (1), a step pipe (25) is arranged at the bottom of the charging basket (21), the step pipe (25) is communicated with the inside of the charging basket (21), a plurality of buffer inner cavity plates (26) are uniformly distributed on the inner wall, the buffer inner cavity plate (26) is in a hollow arc shape, the buffer inner cavity plate (26) and the charging basket (21) are arranged at intervals, a variable frequency motor (27) is fixedly arranged on the outer wall of the screening box body (1), an output shaft of the variable frequency motor (27) movably penetrates through the outer wall of the screening box body (1) and is fixedly connected with the left rotating shaft (22), the screening and collecting device (3) comprises a filter cylinder (31), the filter cylinder (31) is fixedly arranged below the step pipe (25), a plurality of first screening disks (32), second screening disks (33) and material receiving plates (34) are sequentially arranged below the filter cylinder (31) in parallel at intervals from top to bottom, the outer peripheral walls of the first screening disks (32), the second screening disks (33) and the material receiving plates (34) are all attached to the inner wall of the screening box body (1), and a stirring motor (35) is fixedly arranged on the top surface of the second screening disks (33), the outer sleeve of agitator motor (35) is equipped with safety cover (353), the fixed helical blade (351) that is provided with along length direction on agitator motor's (35) output shaft, helical blade (351) are screen form structure, the outside cover of helical blade (351) is equipped with circular cylinder (352), the both ends of circular cylinder (352) are the opening form, the outside limit of helical blade (351) contacts with the inner wall of circular cylinder (352), and the one end of circular cylinder (352) is fixed to run through the first screening dish (32) of the lowest floor, the other end of circular cylinder (352) is fixed to run through the first screening dish (32) of the top floor, and is linked together with the inside of cartridge filter (31), a plurality of blown down tanks (36) are evenly distributed along circumference on the outer wall of the other end of circular cylinder (352), the bottom opening part of blown down tank (36) is provided with baffle box (37), and the bottom surface in blown down tank (37) is the slope form, the one end and the blown down tank (36) of helical blade (351) flush, the other end and the one end opening of circular barrel (352) of helical blade (351) flush, be provided with a plurality of discharging pipes (38) along the circumferential direction on the bottom surface that connects flitch (34), still incline respectively on the lateral wall of first screening dish (32), second screening dish (33) and connecing flitch (34) and be provided with first anti-overflow pipe (321), second anti-overflow pipe (331) and third anti-overflow pipe, be provided with the activity door body (13) on the outer wall of screening box (1).
2. The titanium alloy powder screening device of claim 1, wherein: be provided with left sleeve pipe (11) and right sleeve pipe (12) on the inner wall at screening box (1) top respectively, left sleeve pipe (11) and right sleeve pipe (12) are the hollow tube, the one end of left axis of rotation (22) and right axis of rotation (23) is all fixed to be set up on the outer wall of storage bucket (21), the other end of left axis of rotation (22) and right axis of rotation (23) rotates respectively and sets up in left sleeve pipe (11) and right sleeve pipe (12), the output shaft activity in proper order of inverter motor (27) runs through the outer wall and left sleeve pipe (11) of screening box (1), and with left axis of rotation (22) fixed connection.
3. The titanium alloy powder screening device of claim 1, wherein: cartridge filter (31) include filter (311) and lower collecting plate (312), it is hollow circular truncated cone form structure to go up filter (311) and lower collecting plate (312), it connects gradually with lower collecting plate (312) top-down to go up filter (311), the major diameter end of going up filter (311) and lower collecting plate (312) is the opening form, and go up filter (311) and the major diameter end opening of lower collecting plate (312) link to each other, the junction of going up filter (311) and lower collecting plate (312) is laminated with the inner wall of screening box (1) mutually, the minor diameter end and the side of going up filter (311) are screen cloth column structure, the other end setting of circular barrel (352) is served under the minor diameter of collecting plate (312), and be linked together with the inside of lower collecting plate (312).
4. A titanium alloy powder screening apparatus according to claim 3, wherein: the outside of screening box (1) still is provided with inert gas jar (4), be provided with solenoid valve (41) on the delivery outlet of inert gas jar (4), be provided with inert gas intake pipe (42) on solenoid valve (41), the one end of inert gas intake pipe (42) is connected in solenoid valve (41), the other end of inert gas intake pipe (42) runs through the outer wall of screening box (1), and is located between step pipe (25) and last filter (311), fixed air dispersible tablet (43) that is provided with on the other end of inert gas intake pipe (42).
5. The titanium alloy powder screening device according to claim 4, wherein: airflow dispersion piece (43) is including cavity disc (431), the top surface of cavity disc (431) is the hemisphere form, cavity disc (431) is fixed to be set up on the inner wall of screening box (1) through a plurality of connecting rods (4311), the top surface of cavity disc (431) is run through to the other end of inert gas intake pipe (42), along a plurality of shunt tubes (432) of circumferential direction equipartition on the bottom surface of cavity disc (431), the one end slope of shunt tube (432) sets up on the bottom surface of cavity disc (431), the other end of shunt tube (432) is for sealing the form, be provided with a plurality of ventholes (433) along length direction on the outer wall of shunt tube (432), and venthole (433) all towards the inner wall direction of screening box (1).
6. A titanium alloy powder screening apparatus according to claim 3, wherein: the mesh numbers of the first screening disc (32), the second screening disc (33) and the helical blades (351) are the same, and the mesh numbers of the upper filter plate (311), the helical blades (351) and the material receiving plate (34) are sequentially increased.
7. The titanium alloy powder screening device of claim 1, wherein: the first screening dish (32), the second screening dish (33) and connect flitch (34) to be the slot-like structure of top surface open-ended, the inner wall of first screening dish (32), second screening dish (33) and connect flitch (34) is run through respectively to the one end of first anti-overflow pipe (321), second anti-overflow pipe (331) and third anti-overflow pipe, the outside to screening box (1) is all run through to the other end of first anti-overflow pipe (321), second anti-overflow pipe (331) and third anti-overflow pipe, the other end of first anti-overflow pipe (321), second anti-overflow pipe (331) and third anti-overflow pipe still all is provided with bleeder valve (5), and first anti-overflow pipe (321), second anti-overflow pipe (331) and third anti-overflow pipe are transparent pipe body structure.
8. The titanium alloy powder screening device of claim 7, wherein: one end of the first overflow preventing pipe (321) is positioned on the side wall close to the top opening of the first screening tray (32), one end of the second overflow preventing pipe (331) is positioned on the side wall close to the top opening of the second screening tray (33), and one end of the third overflow preventing pipe is positioned on the side wall close to the part opening of the material receiving plate (34).
9. The titanium alloy powder screening device of claim 1, wherein: the movable door body (13) comprises an upper door body (131) and a lower door body (132), the upper door body (131) and the lower door body (132) are matched with the outer wall of the screening box body (1) in shape, the position of the upper door body (131) corresponds to the joint of the upper filtering plate (311) and the lower collecting plate (312), the top of the lower door body (132) corresponds to the position of the opening at the bottom of the discharge chute (36), the bottom of the lower door body (132) is flush with the bottom surface of the material receiving plate (34), and the upper door body (131) and the lower door body (132) are made of transparent materials.
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| CN202010895330.7A CN112044745B (en) | 2020-08-31 | 2020-08-31 | Titanium alloy powder screening plant |
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| CN113182171A (en) * | 2021-05-08 | 2021-07-30 | 湖南杰瑞精密陶瓷有限公司 | Quantitative processing device and quantitative processing method for ceramic powder |
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