CN114273216A - Continuous recovery method of metal powder - Google Patents
Continuous recovery method of metal powder Download PDFInfo
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- CN114273216A CN114273216A CN202111602027.4A CN202111602027A CN114273216A CN 114273216 A CN114273216 A CN 114273216A CN 202111602027 A CN202111602027 A CN 202111602027A CN 114273216 A CN114273216 A CN 114273216A
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- 238000011084 recovery Methods 0.000 title claims abstract description 77
- 239000000843 powder Substances 0.000 title claims abstract description 41
- 239000002184 metal Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 98
- 238000012216 screening Methods 0.000 claims abstract description 35
- 238000012545 processing Methods 0.000 claims abstract description 3
- 230000001737 promoting effect Effects 0.000 claims abstract description 3
- 238000010079 rubber tapping Methods 0.000 claims 3
- 238000007873 sieving Methods 0.000 abstract description 13
- 238000004064 recycling Methods 0.000 description 10
- 238000007599 discharging Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 230000000996 additive effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
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Abstract
A continuous recovery method of metal powder comprising the steps of: adopt continuous recovery unit to sieve recovery processing to metal powder, continuous recovery unit includes coarse fodder recovery unit, sets up fine material recovery unit in the coarse fodder recovery unit and sets up on the coarse fodder recovery unit lateral wall and through promoting the coarse material of sieving on the fine material recovery unit gets into mode in the coarse material recovery unit is right the drive unit that the coarse material of sieving retrieved. The continuous recovery device is used for screening and recovering metal powder, the continuous recovery device enables the materials to be fully spread by arranging the separated coarse material recovery unit, the fine material recovery unit and the reciprocating driving unit, the screening efficiency is improved, the screened fine material and the screened coarse material are recovered through different outlets, the requirements of continuous feeding and screening recovery can be met, and the continuous recovery device has a good application prospect.
Description
Technical Field
The invention belongs to the technical field of metal powder treatment, and particularly relates to a continuous recovery method of metal powder.
Background
Metal additive manufacturing is an emerging technology in the rapid development of the manufacturing industry field, and is known as a manufacturing technology with industrial revolutionary significance. The technology is increasingly developed and matured gradually, and is widely applied to the industries of aerospace, biomedical, war industry, metallurgy, building, automobile, electronics, jewelry, molds and the like. The metal powder used for additive manufacturing plays a crucial role in the development of the technology as an important raw material. The metal powder used for additive manufacturing needs to meet the following requirements: small powder grain size, narrow powder distribution, good fluidity, high apparent density and the like. At present, the metal powder produced by the mainstream powder preparation technology has wider particle size distribution, and cannot be directly used for additive manufacturing, so the produced powder needs to be screened, and therefore, the powder screening process plays a key role in obtaining high-performance metal powder.
Document No. CN108889608B discloses a metal powder screening and drying device, wherein the disclosed screening structure is: the side face of the upper end of the powder sieving box is provided with a mounting seat, a first motor is arranged on the mounting seat, a main shaft of the first motor is provided with an eccentric wheel, a screen frame is arranged in the powder sieving box, the inner side of the screen frame is provided with a screen, two ends of the screen frame are provided with supporting rods, the supporting rods are in sliding connection with a powder sieving box body, one of the supporting rods is in contact with the eccentric wheel, the front end of the other supporting rod is provided with a spring seat, a spring is arranged on the spring seat, and the other end of the spring is fixedly connected with the outer wall of the powder sieving box. The working principle of the screening structure is as follows: after the powder falls into on the screen cloth, starter motor one, motor one drives the eccentric wheel and rotates, the most advanced of eccentric wheel slides branch together with the screen frame to the direction of keeping away from the eccentric wheel after contacting with branch, and the spring is elongated simultaneously, and when the most advanced of eccentric wheel did not contact with branch, the spring made branch slide to the direction of being close to the eccentric wheel together with the screen frame, and reciprocating motion about eccentric wheel and spring make the screen frame carry out to reach the screening effect, make the powder disperse and evenly fall from the screen cloth.
But the device's screen frame's side-to-side motion path length is limited, and most material still piles up in the middle part of screen frame, and consequently the device improves the efficiency of screening limited, generally adopts the clearance feeding, avoids screening effect variation.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a continuous metal powder recovery method, in which a continuous recovery device is used to perform a screening recovery process on metal powder, and the continuous recovery device is provided with a coarse material recovery unit, a fine material recovery unit and a reciprocating driving unit to fully spread materials, thereby improving the screening efficiency.
In order to achieve the purpose, the technical scheme of the invention is as follows:
a continuous recovery method of metal powder comprising the steps of: adopt continuous recovery unit to sieve recovery processing to metal powder, continuous recovery unit includes coarse fodder recovery unit, sets up fine material recovery unit in the coarse fodder recovery unit and sets up on the coarse fodder recovery unit lateral wall and through promoting the coarse material of sieving on the fine material recovery unit gets into mode in the coarse material recovery unit is right the drive unit that the coarse material of sieving retrieved.
As a further preferred aspect of the present invention, the coarse material recovery unit includes a tank, a feed inlet provided at an upper end of the tank, and a discharge pipe provided at a lower end of the tank.
As a further preferable mode of the present invention, the fine material recovery unit includes a casing disposed in the tank body and located at the lower end of the feed port, and forming two coarse material passages with the inner side walls at the two ends of the tank body, a screening member disposed at the upper end of the casing, and a discharge port disposed on the side wall at the lower end of the casing.
As a further preferred of the present invention, the driving unit includes a fixing box provided on a side wall of the tank body, a driving member provided in the fixing box, and a pushing block provided on a side end of the driving member and located at an upper end of the sieving member.
As a further preferred aspect of the present invention, the driving unit further includes bristles provided on a lower surface of the push block.
As a further preferable aspect of the present invention, the driving member includes a forward and reverse rotation motor disposed on an inner wall of the fixed box, a driving gear disposed in the fixed box and connected to an output end of the forward and reverse rotation motor, a rack disposed in the fixed box and engaged with the driving gear and connected to the pushing block, and a first opening disposed on a side wall of the tank body and through which the rack passes.
As a further preferable aspect of the present invention, the rack is located at an upper end of the driving gear, and the driving unit further includes a fixed cylinder disposed in the fixed box, a connecting rod disposed in the fixed cylinder and connected to the pushing block, and a second opening disposed on a side wall of the tank body and through which the connecting rod passes.
As a further preferred aspect of the present invention, the screening member includes an inner side groove provided on the housing, a screen plate provided on the inner side groove, a connection post provided on a lower surface of the screen plate, a sleeve provided on the inner side groove and connected to the connection post, and a return spring provided in the sleeve.
As a further preference of the present invention, the coarse material recovery unit further comprises a discharge valve provided on the discharge pipe.
As a further preference of the present invention, the coarse material recovery unit further comprises a window arranged on the discharge pipe and located at the upper end of the discharge valve.
In conclusion, the invention has the following beneficial effects:
compared with the equipment adopted in the traditional recovery method, the method for screening and recovering the metal powder by adopting the continuous recovery device can fully spread and screen the material after entering the device, greatly improves the screening efficiency, can meet the requirement of continuous feeding, quickly screens the material, discharges qualified fine materials and unqualified coarse materials through different outlets, hardly has the problem of material blockage and material leakage, and has good industrial application prospect.
The invention ensures that the materials are fully spread by arranging the separated coarse material recovery unit, the fine material recovery unit and the reciprocating driving unit, improves the screening efficiency, can meet the requirements of continuous feeding and screening recovery by recovering the screened fine material and the screened coarse material through different outlets, and has good application prospect.
According to the invention, due to the arrangement of reciprocating motion of the pushing block, the coarse materials can be pushed into the coarse material channel in the forward/backward process of the pushing block, and the risk of material blockage is avoided; in addition, in the reciprocating motion process of the pushing block, part of materials enter between the lower surface of the pushing block and the upper surface of the screening piece and are rolled, and the originally unqualified coarse materials are changed into qualified fine materials and then enter the shell, so that the screening efficiency is improved.
The device uses the rack as a part of a driving structure, utilizes the characteristic of the rack to enable the pushing piece to show the horizontal motion of pause and pause, and enables the pushing piece to generate regular up-and-down vibration on the surface of the sieve plate, the structure of the sieve plate is arranged to further amplify the vibration, so that qualified fine materials on the surface of the sieve plate enter the shell through vibration express delivery, and the sieving efficiency is further improved.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention.
Fig. 2 is a schematic structural diagram of a driving unit of the present invention.
Fig. 3 is a schematic structural view of the screening element of the present invention.
FIG. 4 is a schematic side view of the fines recovery unit and the drive unit of the present invention.
Fig. 5 is a schematic structural diagram of embodiment 2 of the present invention.
Description of the drawings: the coarse material recovery unit 1, the tank body 101, the feeding port 102, the discharging pipe 103, the discharging valve 104, the window 105, the coarse material channel a, the fine material recovery unit 2, the shell 201, the screening member 202, the inner side groove 202a, the screening plate 202b, the connecting column 202c, the sleeve 202d, the return spring 202e, the discharging port 203, the fixing frame 204, the driving unit 3, the fixing box 301, the driving member 302, the forward and reverse rotation motor 302a, the driving gear 302b, the rack 302c, the first opening 302d, the second brush bristles 302e, the third opening 302f, the tip b, the pushing block 303, the brush bristles 304, the fixing cylinder 305, the connecting rod 306, the second opening 307 and the tension spring 308.
Detailed Description
Examples
The continuous recovery method of metal powder provided by the embodiment has the advantage that the metal powder is subjected to screening recovery treatment by using a continuous recovery device. Compared with the traditional screening and recycling equipment, the device can sufficiently spread and screen materials after the materials enter the equipment, has high screening efficiency, can meet the requirement of continuous feeding, quickly screen the materials, and discharge qualified fine materials and unqualified coarse materials through different outlets, almost has no problem of material blockage and material leakage, and has good industrial application prospect.
In this embodiment, as shown in fig. 1 to 4, the continuous recycling device includes a coarse material recycling unit 1, a fine material recycling unit 2 disposed in the coarse material recycling unit 1, and a driving unit 3 disposed on a side wall of the coarse material recycling unit 1 and recycling the screened coarse material by pushing the screened coarse material on the fine material recycling unit 2 into the coarse material recycling unit 1.
The coarse material recovery unit 1 comprises a tank body 101, a feeding hole 102 arranged at the upper end of the tank body 101, and a discharging pipe 103 arranged at the lower end of the tank body 101; the fine material recovery unit 2 comprises a shell 201 which is arranged in the tank body 101, is positioned at the lower end of the feeding hole 102 and forms two coarse material channels a with the inner side walls of two ends of the tank body 101, a screening part 202 arranged at the upper end of the shell 201, and a discharging hole 203 arranged on the side wall of the lower end of the shell 201; the driving unit 3 includes a fixing box 301 provided on a side wall of the tank 101, a driving member 302 provided in the fixing box 301, and a pushing block 303 provided on a side end of the driving member 302 and located at an upper end of the sifting member 202.
In this embodiment, the tank body 101 is a cylindrical tank body, the casing 201 is a square box body, so the distance between the left and right sides and the front and back four sides of the casing 201 and the tank body 101 can be controlled by the shape of the casing 201, wherein the distance between the front and back two sides of the casing 201 and the inner wall surface of the tank body 101 is very small, so that coarse material sieved by the sieving part 202 and remained at the upper end of the sieving part 202 cannot enter, and the distance between the left and right sides of the casing 201 and the inner wall surface of the tank body 101 is equal, and the coarse material channel a is formed, so that the coarse material is conveyed to the discharge pipe 103 through the coarse material channel a and is collected. In this embodiment, the housing 201 is fixed by providing a fixing frame 204 on the upper surface of the housing 201, and fixing the other end of the fixing frame 204 on the inner surface of the upper end of the tank 101; and the connecting position of the fixing frame 204 and the housing 201 is located on the upper surface of the housing 201 near the front and rear surfaces, and thus does not cross the moving path of the driving unit 3 to interfere the movement of the driving unit 3.
In this embodiment, the pushing block 303 is driven by the driving member 302 to reciprocate on the upper end of the sifting element 202, and is arranged to: in the process of reciprocating motion of the pushing block 303, the feeding material accumulated in the middle of the upper end of the screening part 202 can be pushed to be spread, so that the screening speed is increased; the intercepted screened coarse material can be pushed to enter a coarse material channel a, and is discharged from the discharge pipe 103 for recycling; as the coarse material channels a are distributed on two sides of the tank body 101, the coarse materials can be pushed into the coarse material channels a in the forward/backward process of the pushing block 303, and the risk of material blockage can not occur; in addition, in the reciprocating motion process of the pushing block 303, part of materials enter between the lower surface of the pushing block 303 and the upper surface of the screening piece 202 and are rolled, and the originally unqualified coarse materials are changed into qualified fine materials and then enter the shell 201, so that the screening efficiency is improved. Further, the upper end of the pushing block 303 is processed to be pointed to form a pointed end b, so as to prevent materials from being accumulated on the upper surface of the pushing block 303. At the same time, the pushing speed of the driving member 302 cannot be too fast, preventing the qualified fine material from being pushed into the coarse material channel a without being sufficiently sieved.
In this embodiment, the driving unit 3 further includes bristles 304 disposed on a lower surface of the pusher block 303. The advantage of this arrangement is that the bristles 304 can be used to brush the surface of the sifting member 202 back and forth to reduce the risk of clogging the holes in the surface of the sifting member 202, in view of the problem that the holes in the surface of the sifting member 202 are prone to clogging during long-term operation.
In this embodiment, the specific structure of the driving member 302 includes: a forward and reverse rotation motor 302a arranged on the inner wall of the fixed box 301, a driving gear 302b arranged in the fixed box 301 and connected with the output end of the forward and reverse rotation motor 302a, a rack 302c arranged in the fixed box 301, meshed with the driving gear 302b and connected with the pushing block 303, and a first opening 302d arranged on the side wall of the tank body 101 and allowing the rack 302c to pass through; the rack gear 302c is located at an upper end of the driving gear 302 b. The driving gear 302b is a fixed gear, the rack 302c drives the pushing block 303 to reciprocate along the horizontal direction under the driving of the fixed gear, the sawtooth part of the rack 302c faces downwards to prevent materials from being clamped into sawtooth gaps, a sliding structure can be arranged on the smooth surface of the rack 302c to be connected with the upper inner wall of the fixed box 301 to be used for sliding and fixing the rack 302c, and a guide rail structure or other existing structures can be selected for the sliding structure, so that the details are not repeated. In this embodiment, since the movement path of the pushing block 303 is long, a third opening 302f is provided at an outer section of the fixed box 301 for extending the rack 302c, and the extended portion of the rack 302c can be marked by scribing, so as to record the moving distance of the pushing block 303, and thus judge the position of the pushing block 303 in the tank 101. Further, the inner wall of the first opening 302d is provided with second bristles 302e for preventing materials from entering the fixing box 301.
In this embodiment, in order to further enhance the installation stability of the pushing block 303, the driving unit 3 further includes a fixed cylinder 305 disposed in the fixed box 301, a connecting rod 306 disposed in the fixed cylinder 305 and connected to the pushing block 303, and a second opening 307 disposed on the sidewall of the tank 101 and allowing the connecting rod 306 to pass through, and a tension spring 308 may be disposed between the fixed cylinder 305 and the connecting rod 306 for buffering.
In this embodiment, the sifting member 202 includes an inner side groove 202a provided in the housing 201, a screen plate 202b provided on the inner side groove 202a, a connecting post 202c provided on a lower surface of the screen plate 202b, a sleeve 202d provided on the inner side groove 202a and connected to the connecting post 202c, and a return spring 202e provided in the sleeve 202 d. The device has the advantages that the rack 302c is used as one of the driving structures, the characteristic of the rack 302c is utilized, the pushing piece 303 is enabled to move horizontally in a pause mode, the pushing piece 303 can generate regular vertical vibration on the surface of the sieve plate 202b, and the connecting column 202c, the sleeve 202d and the reset spring 202e are used for amplifying the vibration, so that qualified fine materials on the surface of the sieve plate 202b can enter the shell 201 through vibration in an express way, and the sieving efficiency is improved; and the structure still meets the detachable function of the sieve plate 202b, thereby being convenient for maintenance and replacement.
In this embodiment, the coarse material recovery unit 1 further comprises a discharge valve 104 disposed on the discharge pipe 103, and a window 105 disposed on the discharge pipe 103 and located at an upper end of the discharge valve 104. The discharge valve 104 is arranged to control the course of the coarse material, and the window 105 is arranged to observe the material piling in the discharge pipe 103.
The working principle of the embodiment is as follows: materials to be screened enter the tank body 101 from the feeding hole 102, the materials fall on the sieve plate 202b for screening, qualified fine materials enter the shell 201 and are collected through the discharging hole 203, and unqualified coarse materials are accumulated on the sieve plate 202 b; the forward and reverse rotation motor 302a is driven to drive the pushing block 303 to reciprocate, and coarse materials are pushed into a coarse material channel a and are discharged and collected through the discharging pipe 103.
Example 2
The present embodiment is different from embodiment 1 in that, as shown in fig. 5, the present apparatus is provided with two driving units 3 and distributed on both sides of the tank 101. The working time of the two driving units 3 is distributed at intervals, namely after the driving unit 3 at one side completes one pushing-recovery work, the driving unit 3 stops, the driving unit 3 at the other side starts to work, and the same pushing-recovery work is completed. The advantage that sets up like this lies in, avoids most coarse fodder most all to get into the risk that the unloading is smooth even the card material in the coarse fodder passageway a of one side under one side drive unit 3 promotes, improves unloading efficiency.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. A method for the continuous recovery of metal powder, characterized in that it comprises the following steps: adopt continuous recovery unit to sieve recovery processing to metal powder, continuous recovery unit includes coarse fodder recovery unit (1), sets up fine material recovery unit (2) in coarse fodder recovery unit (1) and sets up on coarse fodder recovery unit (1) lateral wall and through promoting screening coarse fodder on fine material recovery unit (2) gets into mode in coarse fodder recovery unit (1) is right screening coarse fodder carries out the drive unit (3) of retrieving.
2. A continuous recovery method of metal powder according to claim 1, characterized in that the coarse material recovery unit (1) comprises a tank (101), a feed inlet (102) arranged at the upper end of the tank (101), and a discharge outlet (103) arranged at the lower end of the tank (101).
3. A continuous recovery method of metal powder according to claim 2, characterized in that the fine material recovery unit (2) comprises a housing (201) disposed in the tank (101) at the lower end of the feed inlet (102) and forming two coarse material passages (a) with the inner side walls of both ends of the tank (101), a screening member (202) disposed at the upper end of the housing (201), and a discharge outlet (203) disposed at the side wall of the lower end of the housing (201).
4. A continuous recovery method of metal powder according to claim 3, characterized in that the driving unit (3) comprises a fixed box (301) provided on the side wall of the tank (101), a driving member (302) provided in the fixed box (301), and a pushing block (303) provided on the side end of the driving member (302) and located at the upper end of the sifting member (202).
5. A continuous recovery method of metal powder according to claim 4, characterized in that said drive unit (3) further comprises bristles (304) arranged on the lower surface of said pusher block (303).
6. A continuous recovery method of metal powder according to claim 4, characterized in that the driving member (302) comprises a forward and reverse rotation motor (302 a) disposed on the inner wall of the fixed box (301), a driving gear (302 b) disposed in the fixed box (301) and connected to the output end of the forward and reverse rotation motor (302 a), a rack (302 c) disposed in the fixed box (301) and engaged with the driving gear (302 b) and connected to the pushing block (303), and a first opening (302 d) disposed on the side wall of the can body (101) and passing through the rack (302 c).
7. A continuous recovery method of metal powder according to claim 6, wherein the rack gear (302 c) is located at an upper end of the driving gear (302 b), and the driving unit (3) further comprises a fixed cylinder (305) provided in the fixed box (301), a connecting rod (306) provided in the fixed cylinder (305) and connected to the pushing block (303), and a second opening (307) provided on a side wall of the can body (101) and passing the connecting rod (306).
8. A method for continuously recovering metal powder according to claim 6, wherein said sifting member (202) comprises an inner side groove (202 a) provided on said casing (201), a sieve plate (202 b) provided on said inner side groove (202 a), a connecting column (202 c) provided on a lower surface of said sieve plate (202 b), a sleeve (202 d) provided on said inner side groove (202 a) and connected to said connecting column (202 c), and a return spring (202 e) provided in said sleeve (202 d).
9. A method for continuous recovery of metal powder according to claim 2, characterized in that the coarse recovery unit (1) further comprises a tap valve (104) arranged on the tapping pipe (103).
10. A method for the continuous recovery of metal powder according to claim 9, characterized in that the coarse recovery unit (1) further comprises a window (105) arranged on the tapping pipe (103) and located at the upper end of the tapping valve (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111602027.4A CN114273216A (en) | 2021-12-24 | 2021-12-24 | Continuous recovery method of metal powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111602027.4A CN114273216A (en) | 2021-12-24 | 2021-12-24 | Continuous recovery method of metal powder |
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| CN114273216A true CN114273216A (en) | 2022-04-05 |
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| CN202111602027.4A Pending CN114273216A (en) | 2021-12-24 | 2021-12-24 | Continuous recovery method of metal powder |
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|---|---|---|---|---|
| GB1361308A (en) * | 1972-02-29 | 1974-07-24 | Simon Barron Ltd | Oscilatory sieves |
| CN107029849A (en) * | 2017-06-15 | 2017-08-11 | 段华勇 | A kind of construction river sand classified screening device |
| CN107649392A (en) * | 2017-11-03 | 2018-02-02 | 邱杨清 | A kind of Chemical Manufacture grain products two level screening plant |
| CN207103112U (en) * | 2017-06-26 | 2018-03-16 | 李桂兰 | A kind of screening plant for building wall paint coating |
| CN207154136U (en) * | 2017-09-09 | 2018-03-30 | 深圳市晋荣混凝土有限公司 | A kind of linear vibrating screen |
| CN108499879A (en) * | 2018-04-17 | 2018-09-07 | 新昌县中邦塑粉科技有限公司 | A kind of high-precision molding powder classified screening device |
| CN109332157A (en) * | 2018-10-11 | 2019-02-15 | 银川特锐宝信息技术服务有限公司 | A kind of novel chemical chemical material screening machine |
| CN208627812U (en) * | 2018-07-25 | 2019-03-22 | 钟祥市宇峰振动机械制造有限公司 | A kind of multi-layer efficient combined vibrating sieve |
| CN211660468U (en) * | 2020-08-28 | 2020-10-13 | 潍坊圣兴化工有限公司 | Light calcium carbonate screening frame |
| CN215278490U (en) * | 2021-08-04 | 2021-12-24 | 马鞍山钢铁股份有限公司 | Alloy material filtering device for RH refining furnace |
-
2021
- 2021-12-24 CN CN202111602027.4A patent/CN114273216A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1361308A (en) * | 1972-02-29 | 1974-07-24 | Simon Barron Ltd | Oscilatory sieves |
| CN107029849A (en) * | 2017-06-15 | 2017-08-11 | 段华勇 | A kind of construction river sand classified screening device |
| CN207103112U (en) * | 2017-06-26 | 2018-03-16 | 李桂兰 | A kind of screening plant for building wall paint coating |
| CN207154136U (en) * | 2017-09-09 | 2018-03-30 | 深圳市晋荣混凝土有限公司 | A kind of linear vibrating screen |
| CN107649392A (en) * | 2017-11-03 | 2018-02-02 | 邱杨清 | A kind of Chemical Manufacture grain products two level screening plant |
| CN108499879A (en) * | 2018-04-17 | 2018-09-07 | 新昌县中邦塑粉科技有限公司 | A kind of high-precision molding powder classified screening device |
| CN208627812U (en) * | 2018-07-25 | 2019-03-22 | 钟祥市宇峰振动机械制造有限公司 | A kind of multi-layer efficient combined vibrating sieve |
| CN109332157A (en) * | 2018-10-11 | 2019-02-15 | 银川特锐宝信息技术服务有限公司 | A kind of novel chemical chemical material screening machine |
| CN211660468U (en) * | 2020-08-28 | 2020-10-13 | 潍坊圣兴化工有限公司 | Light calcium carbonate screening frame |
| CN215278490U (en) * | 2021-08-04 | 2021-12-24 | 马鞍山钢铁股份有限公司 | Alloy material filtering device for RH refining furnace |
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