CN112718143A

CN112718143A - Multilayer sieving mechanism of powder concentrator

Info

Publication number: CN112718143A
Application number: CN202010977901.1A
Authority: CN
Inventors: 吕海峰; 曹海宁
Original assignee: Jiangsu Jinengda Enviroment Energy Technology Co ltd
Current assignee: Jiangsu Jinengda Enviroment Energy Technology Co ltd
Priority date: 2020-09-17
Filing date: 2020-09-17
Publication date: 2021-04-30
Anticipated expiration: 2040-09-17
Also published as: CN112718143B

Abstract

The invention discloses a multilayer screening device of a powder concentrator, which comprises a shell, wherein a powder cutting rotating block is arranged in a feeding pipe at the top of the shell, a plurality of powder feeding grooves and powder cutting knives are arranged around the powder cutting rotating block, a feeding gauze is arranged below the powder cutting rotating block, a rotary cylinder is arranged below the feeding pipe, a plurality of powder throwing grooves are arranged on the periphery of the bottom of the rotary cylinder, a counterweight plate is arranged at the outlet of the powder throwing groove, an elastic sleeve is arranged at one side of the counterweight plate, a plurality of impact rods are arranged in the elastic sleeve, the middle of the bottom of the inner side of the shell is provided with a blower, the periphery of the bottom of the inner side of the shell is provided with a plurality of coarse powder outlets, the fine powder screening device has the characteristics that fine powder can be further screened, and the separation effect of the fine powder and coarse powder is enhanced.

Description

Multilayer sieving mechanism of powder concentrator

Technical Field

The invention relates to the technical field of powder separators, in particular to a multi-layer screening device of a powder separator.

Background

The powder concentrator has a plurality of types, the materials with different types are different, and different types are manufactured according to the requirement of customers on the fineness of the materials. Common powder separators include cyclone powder separator, three-separation powder separator, centrifugal powder separator, coal mill separator, calcium powder separator, etc. And a plurality of high-efficiency powder separators, namely high-efficiency three-separation powder separators, are developed later and are new-generation varieties which are not improved enough on the basis of the original varieties and improve the yield.

When the existing powder concentrator is used, only coarse powder and fine powder are separated, and the fine powder cannot be screened and classified; meanwhile, the powder is easy to stand together, so that fine powder is mixed with fallen coarse powder, and the powder selection quality is difficult to improve. Therefore, it is necessary to design a multi-layer screening device of a powder concentrator, which can further screen the fine powder and enhance the separation effect of the fine powder and the coarse powder.

Disclosure of Invention

The invention aims to provide a multilayer screening device of a powder concentrator, which aims to solve the problems in the background technology.

In order to solve the technical problems, the invention provides the following technical scheme: a multilayer screening device of a powder concentrator comprises a shell, wherein a powder cutting device is installed at the top of the shell and comprises a feeding pipe, a powder cutting rotating block is installed in the feeding pipe, a plurality of powder feeding grooves are formed in the periphery of the powder cutting rotating block, powder cutting knives are respectively arranged at the tops of the powder feeding grooves, a gauze sleeve is sleeved on a powder cutting rotating block rotating shaft, a feeding gauze is installed between the gauze sleeve and the feeding pipe, a user adds powder for the powder concentrator through the feeding pipe, the powder is firstly accumulated on the upper side of the powder cutting rotating block, when the powder cutting rotating block rotates, the powder cutting knives cut the powder into the powder feeding grooves layer by layer, and the powder feeding grooves extrude the powder through the feeding gauze at the bottom of the powder cutting rotating block, so that the powder can be cut into pieces and separated, the problem that the powder is difficult to select is solved, and the powder can uniformly fall into the powder concentrator, and the powder on one side in the powder concentrator is prevented from being too much to influence the powder concentration.

According to the technical scheme, a rotating device is arranged in the shell and comprises a rotating cylinder supporting block, a plurality of support rods are connected between the rotary drum support block and the bottom of the inner side of the shell, a rotary drum motor is arranged on the side of the rotary drum support block, the output shaft of the motor of the rotary drum is provided with the rotary drum, the periphery of the bottom of the rotary drum is provided with a plurality of powder throwing grooves, the powder material falls into the rotary cylinder through the feeding pipe, when the rotary cylinder rotates, the powder material enters the powder throwing groove through the centrifugal force, then throw away rotatory section of thick bamboo and select powder, when the motor drives rotatory section of thick bamboo rotatory, can drive through the connecting rod and cut the rotatory piece of powder and rotate together, the guide piece can prevent that the powder from piling up and getting rid of between the powder groove entry, and the guide powder gets into and gets rid of the powder groove.

According to the technical scheme, the powder throwing groove is internally provided with the separating device, the separating device comprises a fixed block, the fixed block is positioned at the inlet of the powder throwing groove, the outlet of the powder throwing groove is provided with a counterweight plate groove, the counterweight plate is arranged in the counterweight plate groove, the middle of the counterweight plate is provided with a powder throwing outlet, an elastic sleeve is arranged between the fixed block and the counterweight plate, a plurality of impact rods are arranged inside the elastic sleeve, when powder passes through the powder throwing groove, the powder can collide with the impact rods, so that the adhered powder is separated, the powder selecting quality is improved, when the rotary drum rotates, the counterweight plate can move outwards due to the centrifugal force, the elastic sleeve is stretched, the distance between the impact rods is increased, when larger powder is screened, the rotating speed of the rotary drum can be increased, at the moment, the centrifugal force of the counterweight plate can also be increased, the elastic sleeve is further stretched, the distance, the separating device can automatically adapt to the size of the powder.

According to the technical scheme, middlings filter equipment is installed to the inboard bottom of shell, middlings filter equipment includes the hair-dryer, the hair-dryer is located in the middle of the inboard bottom of shell, the inboard bottom of shell and fixed block bottom are conical, the inboard bottom of shell is provided with a plurality of middlings export all around, and the hair-dryer passes through the conical bottom of fixed block, for the even air supply all around of a rotatory section of thick bamboo, after the powder was thrown away and is got rid of the powder groove, the farine can be blown away, selects the powder, and the middlings can not be blown because gravity is great, can fall into the middlings export and retrieve, makes powder middlings.

According to the technical scheme, fine powder sieving mechanism is installed to the shell inner wall, fine powder sieving mechanism includes the wind direction baffle, wind direction baffle top links to each other with shell inner wall upper end, wind direction baffle lower extreme extends to gets rid of powder groove export upside, the shell inner wall is provided with a plurality of fine powder grooves, fine powder gauze is installed respectively to fine powder groove upside, fine powder gauze both sides link to each other with shell inner wall and wind direction baffle respectively, the wind direction baffle makes wind carry the fine powder and move towards the ascending direction to one side, when wind passes fine powder gauze, thicker fine powder can fall down, thicker fine powder then continues to rise, the fine powder that falls down can be blown up again below having arrived fine powder gauze, constantly reciprocates, because wind is the ascending direction to one side, the dust can slowly move when moving fine powder groove top, wind is blocked by the fine powder groove, the dust can fall into the fine powder inslot, has played the effect of thicker fine powder of filtering, the fine powder can be classified according to the fineness by screening the fine powder gauze several times.

According to the technical scheme, a multilayer sieving mechanism of selection powder machine still include fine powder suction device, fine powder suction device includes a plurality of storage powder casees, store up the powder tank top and install the draught fan respectively, the draught fan export links to each other with storage powder tank top, fine powder tank bottom is provided with inhales the powder pipe, the draught fan entry links to each other through the trachea with inhaling the powder pipe end, inhale and install the relief valve in the powder pipe, the draught fan can inhale storage powder tank with fine powder in, the relief valve can block fine powder earlier, the draught fan makes the atmospheric pressure of one side constantly reduce, when the atmospheric pressure difference of relief valve both sides reaches certain degree, the relief valve just can be opened, makes the fine powder of piling up in the fine powder groove once only inhale storage powder tank in to owing to need not continuously absorb fine powder, can use the less draught fan of power, save the cost.

According to the technical scheme, the powder suction pipe is internally provided with the moving groove, the moving plate is installed in the moving groove, the safety valve is installed in the middle of the moving plate, the two sides of the safety valve are respectively provided with the hoses, the two ends of the powder suction pipe are communicated through the hoses by the safety valve, the moving plate spring is installed between one side of the moving plate and one end of the moving groove, when the air pressure on one side of the safety valve is reduced, the air pressure on the other side is not enough to open the safety valve, the moving plate can be pushed to move firstly, when the safety valve is opened, the air pressure difference on the two sides is reduced, the moving plate is pulled back by the moving plate spring to the.

According to the technical scheme, the hose is sleeved with the hose guiding device, the hose guiding device comprises a plurality of elastic rings, the elastic rings are connected with the outer side of the hose, the hose is sleeved with a plurality of guide plates, thin plates are arranged in the guide plates, an elastic ring groove is arranged in the middle of each thin plate, the elastic ring groove and the elastic rings are in a matched structure, a plurality of roller grooves are arranged on the inner sides of the guide plates, rollers are respectively arranged in the roller grooves, connecting rods are connected between the rollers of the upper guide plate and the lower guide plate in a staggered manner, rotating shafts of the two connecting rods on the same side are connected, guide rails are arranged among the guide plates, two sides of the movable plate and two sides of the movable groove, the guide rails can support the guide plates and the movable plate and fix the moving direction, when the movable plate moves, the roller between the first guide plate and the second guide plate rolls, the connecting rod is changed into an X shape, the upper guide plate and the lower guide plate are separated, the hose on the inner side is driven to extend, when the roller rolls to the tail end of the roller groove, the second guide plate can be pulled, the following guide plates repeat the process to achieve the effect of stretching the hose, otherwise, the guide plates and the hose are contracted together, and the hose can be stretched in a fixed mode through the hose guide device, so that the hose is prevented from being folded when being contracted, and fine powder is prevented from being absorbed.

According to the technical scheme, a fine powder gauze screen vibrating device is installed on the lower side of the hose guiding device and comprises a moving block groove, a moving rod is installed in the moving block groove, a plurality of clamping block grooves are formed in the top of the moving rod, an elastic ball is installed at the bottom of each clamping block groove, a movable clamping block is installed on the upper side of each elastic ball, a rotating shaft on one side of each movable clamping block is connected with each clamping block groove, a plurality of fixing rods are arranged at the top of each moving block groove and are respectively located on one side of the rotating shaft of each movable clamping block, a fixed clamping block is arranged at the bottom of each moving plate, one end of each moving rod is connected with a fine powder gauze screen through a wire, a moving rod spring is installed between the other end of each moving rod and the corresponding moving block groove, and when the moving plates move, the moving rods can be, when the movable rod moves, the fixed rod can extrude the fixed clamping block to retract into the clamping block groove until the fixed clamping block is separated from the movable clamping block, the movable rod spring pushes the movable rod to return quickly, and meanwhile, the fine powder gauze is loosened quickly, so that the fine powder gauze vibrates, fine powder blocked in the fine powder gauze is scattered, and the effect of automatically cleaning the fine powder gauze is achieved.

Compared with the prior art, the invention has the following beneficial effects: in the invention, the raw materials are mixed,

(1) the powder selecting machine is provided with the powder cutting device, the powder cutting knives cut powder into the powder feeding groove layer by layer, the powder feeding groove extrudes the powder through the feeding gauze, powder blocks can be cut and the powder can be separated, the problem that the powder blocks are difficult to select powder is solved, meanwhile, the powder can uniformly fall into the powder selecting machine, and the situation that the powder selecting is influenced due to the fact that too much powder is arranged on one side of the powder selecting machine is prevented;

(2) through the arrangement of the separating device, powder materials collide with the impact rods through the powder throwing groove, the powder materials which are stuck together are separated, the powder selecting quality is improved, when larger powder materials are screened at the same time, the rotating speed requirement of the rotating cylinder is increased, the centrifugal force of the counterweight plate is increased, the elastic sleeve is stretched, the distance between the impact rods is increased, and the separating device can automatically adapt to the size of the powder materials;

(3) by arranging the fine powder screening device, when wind passes through the fine powder gauze, coarse fine powder falls down and slowly moves to one side until the wind falls into the fine powder groove, so that the effect of filtering out coarse fine powder is achieved, and fine powder can be classified according to the fineness through screening of the fine powder gauze for many times;

(4) the fine powder gauze vibrating device is arranged, so that the draught fan drives the fine powder gauze to vibrate while absorbing fine powder, the fine powder blocked in the fine powder gauze is scattered, and the effect of automatically cleaning the fine powder gauze is achieved.

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 view of the overall structure of the present invention;

FIG. 2 is a schematic structural diagram of the powder cutting device of the present invention;

FIG. 3 is a schematic view of the structure of the rotating device of the present invention;

FIG. 4 is a schematic view of the structure of the moving slot of the present invention;

FIG. 5 is a schematic view of the hose guide of the present invention;

in the figure: 1. a housing; 2. a powder cutting device; 21. a feed pipe; 22. cutting powder and rotating the block; 23. a powder feeding groove; 24. a powder cutter; 25. a gauze cover; 26. feeding a gauze; 3. a rotating device; 31. a rotating cylinder support block; 32. a support bar; 33. a rotary drum motor; 34. a rotary drum; 35. a powder throwing groove; 36. a guide block; 37. a connecting rod; 4. a separation device; 41. a fixed block; 42. a counterweight plate slot; 43. a weight plate; 44. a powder throwing outlet; 45. an elastic sleeve; 46. a striker bar; 5. a coarse powder filtering device; 51. a blower; 52. a coarse powder outlet; 6. a fine powder screening device; 61. a wind direction guide plate; 62. a fine powder groove; 63. fine powder gauze; 7. a fine powder suction device; 71. a powder storage box; 72. an induced draft fan; 73. a powder suction pipe; 74. a safety valve; 75. a moving groove; 76. moving the plate; 77. a hose; 78. moving the plate spring; 8. a hose guide; 81. an elastic ring; 82. a guide plate; 83. a thin plate; 84. an elastic ring groove; 85. a roller groove; 86. a roller; 87. a guide plate connecting rod; 88. a guide rail; 9. a fine powder gauze vibrating device; 91. a moving block slot; 92. a travel bar; 93. a block slot; 94. an elastic ball; 95. a movable clamping block; 96. fixing the rod; 97. fixing the fixture block; 98. a travel bar spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides the following technical solutions: referring to fig. 1 and 2, a multi-layer screening device of a powder concentrator comprises a housing 1, a powder cutting device 2 is mounted on the top of the housing 1, the powder cutting device 2 comprises a feeding pipe 21, a powder cutting rotating block 22 and a powder cutting rotating block 22 are mounted in the feeding pipe 21, a plurality of powder feeding grooves 23 are formed around the powder cutting rotating block 22, powder cutting knives 24 are respectively arranged on the tops of the powder feeding grooves 23, a gauze sleeve 25 is sleeved on a rotating shaft of the powder cutting rotating block 22, a feeding gauze 26 is mounted between the gauze sleeve 25 and the feeding pipe 21, a user adds powder for the powder concentrator through the feeding pipe 21, the powder is firstly accumulated on the upper side of the powder cutting rotating block 22, when the powder cutting rotating block 22 rotates, the powder is cut into the powder feeding grooves 23 layer by layer, the powder feeding grooves 23 extrude the powder through the feeding gauze 26, the powder concentrator can be cut into pieces and separated, and the problem that the powder is difficult to select is solved, meanwhile, powder can uniformly fall into the powder concentrator, so that the powder concentrator is prevented from influencing powder concentration due to excessive powder on one side in the powder concentrator;

as shown in fig. 3, a rotating device 3 is installed inside a housing 1, the rotating device 3 includes a rotating cylinder support block 31, a plurality of support rods 32 are connected between the rotating cylinder support block 31 and the bottom of the inner side of the housing 1, a rotating cylinder motor 33 is installed on the side of the rotating cylinder support block 31, a rotating cylinder 34 is installed on an output shaft of the rotating cylinder motor 33, a plurality of powder throwing grooves 35 are arranged around the bottom of the rotating cylinder 34, guide blocks 36 are respectively arranged between inlets of the powder throwing grooves 35, a connecting rod 37 is arranged between the bottom of the rotating cylinder 34 and a powder cutting rotating block 22, the powder falls into the rotating cylinder 34 after passing through a feed pipe 21, when the rotating cylinder 34 rotates, the powder enters the powder throwing grooves 35 through centrifugal force and then is thrown out of the rotating cylinder 34 for powder selection, when the motor drives the rotating cylinder 34 to rotate, the powder cutting rotating block 22 can be driven by the connecting rod 37 to rotate together, guiding the powder material into a powder throwing groove 35;

as shown in fig. 3, a separating device 4 is installed in the powder throwing groove 35, the separating device 4 includes a fixed block 41, the fixed block 41 is located at the inlet of the powder throwing groove 35, the outlet of the powder throwing groove 35 is provided with a counterweight plate groove 42, a counterweight plate 43 is installed in the counterweight plate groove 42, a powder throwing outlet 44 is arranged in the middle of the counterweight plate 43, an elastic sleeve 45 is installed between the fixed block 41 and the counterweight plate 43, a plurality of impact rods 46 are installed inside the elastic sleeve 45, when powder passes through the powder throwing groove 35, the powder collides with the impact rods 46 to separate the powder stuck together, thereby improving the powder selecting quality, when the rotary drum 34 rotates, the counterweight plate 43 moves outwards due to the centrifugal force, the elastic sleeve 45 is stretched to enlarge the distance between the impact rods 46, when larger powder is selected, the rotating speed requirement of the rotary drum 34 is enlarged, at this time, the centrifugal force of the counterweight plate 43 is also increased, the elastic sleeve 45 is further stretched to, the separation device 4 can automatically adapt to the size of the powder;

as shown in fig. 1, a coarse powder filtering device 5 is installed at the bottom of the inner side of a housing 1, the coarse powder filtering device 5 comprises a blower 51, the blower 51 is located in the middle of the bottom of the inner side of the housing 1, the bottom of the inner side of the housing 1 and the bottom of a fixed block 41 are conical, a plurality of coarse powder outlets 52 are arranged around the bottom of the inner side of the housing 1, the blower 51 supplies air uniformly around a rotating cylinder 34 through the conical bottom of the fixed block 41, fine powder is blown away after the powder is thrown out of a powder throwing groove 35, fine powder is blown away for powder selection, the coarse powder cannot be blown due to large gravity and falls into the coarse powder outlets 52;

as shown in figure 1, a fine powder screening device 6 is arranged on the inner wall of a shell 1, the fine powder screening device 6 comprises an air direction guide plate 61, the top end of the air direction guide plate 61 is connected with the upper end of the inner wall of the shell 1, the lower end of the air direction guide plate 61 extends to the upper side of the outlet of a powder throwing groove 35, the inner wall of the shell 1 is provided with a plurality of fine powder grooves 62, fine powder gauzes 63 are respectively arranged on the upper sides of the fine powder grooves 62, two sides of each fine powder gauze 63 are respectively connected with the inner wall of the shell 1 and the air direction guide plate 61, the air direction guide plate 61 enables the fine powder to move in an oblique upward direction, when air passes through the fine powder gauzes 63, coarse fine powder falls down, the coarse fine powder continues rising, the falling fine powder is blown up to the fine powder gauzes 63 and continuously moves up and down, and the fine powder is blocked by the fine powder grooves 62 when the air moves to the upper side of the fine powder grooves 62, the fine powder can be classified according to the fineness by screening the fine powder gauze 63 for a plurality of times;

as shown in fig. 1, the multilayer screening device of the powder concentrator further comprises a fine powder suction device 7, the fine powder suction device 7 comprises a plurality of powder storage boxes 71, draught fans 72 are respectively installed at the tops of the powder storage boxes 71, outlets of the draught fans 72 are connected with the tops of the powder storage boxes 71, a powder suction pipe 73 is arranged at the bottom of the fine powder tank 62, an inlet of each draught fan 72 is connected with the tail end of each powder suction pipe 73 through an air pipe, a safety valve 74 is installed in each powder suction pipe 73, the draught fans 72 can suck fine powder into the powder storage boxes 71, the safety valves 74 can block the fine powder firstly, the draught fans 72 enable the air pressure on one side to be reduced continuously, when the air pressure difference between two sides of each safety valve 74 reaches a certain degree, the safety valves 74 are opened, the fine powder accumulated in the fine powder tank 62 can be sucked into the powder storage boxes 71 at one time;

as shown in fig. 4, a moving groove 75 is arranged in the powder suction pipe 73, a moving plate 76 is arranged in the moving groove 75, a safety valve 74 is arranged in the middle of the moving plate 76, hoses 77 are respectively arranged on two sides of the safety valve 74, the safety valve 74 communicates two ends of the powder suction pipe 73 through the hoses 77, a moving plate spring 78 is arranged between one side of the moving plate 76 and one end of the moving groove 75, when the air pressure on one side of the safety valve 74 is reduced, the moving plate 76 is pushed to move firstly, when the air pressure on the other side is not enough to open the safety valve 74, the air pressure difference on two sides is reduced after the safety valve 74 is opened, the moving plate spring 78 pulls the moving plate 76 back to the original position;

referring to fig. 5, the hose 77 is sleeved with the hose guide 8, the hose guide 8 includes a plurality of elastic rings 81, the elastic rings 81 are connected to the outside of the hose 77, the hose 77 is sleeved with a plurality of guide plates 82, thin plates 83 are disposed in the guide plates 82, an elastic ring groove 84 is disposed in the middle of the thin plates 83, the elastic ring groove 84 and the elastic rings 81 are in a matching structure, a plurality of roller grooves 85 are disposed in the inner sides of the guide plates 82, rollers 86 are respectively disposed in the roller grooves 85, guide plate connecting rods 87 are alternately connected between the rollers 86 of the upper and lower guide plates 82, the two guide plate connecting rods 87 on the same side are connected with each other by rotating shafts, guide rails 88 are disposed between the guide plates 82, the two sides of the moving plate 75 and the two sides of the moving groove 75, the guide rails 88 can support the guide plates 82 and the moving plate 82 and fix the moving direction, when the moving plate 76 is moved, the roller 86 between the first guide, the guide plate connecting rod 87 is changed into an X shape, the upper guide plate 82 and the lower guide plate 82 are separated, the hose 77 at the inner side is driven to extend, when the roller 86 rolls to the tail end of the roller groove 85, the second guide plate 82 is pulled, the following guide plates 82 repeat the process to achieve the effect of stretching the hose 77, otherwise, the guide plates 82 and the hose 77 are contracted together, the hose 77 can be stretched in a fixed mode through the hose guide device 8, and the hose 77 is prevented from being folded when being contracted to hinder the absorption of fine powder;

referring to fig. 4, a fine powder screen vibrating device 9 is installed at the lower side of the hose guide 8, the fine powder screen vibrating device 9 includes a moving block groove 91, a moving rod 92 is installed in the moving block groove 91, a plurality of block grooves 93 are formed at the top of the moving rod 92, an elastic ball 94 is installed at the bottom of each block groove 93, a movable block 95 is installed at the upper side of each elastic ball 94, a rotating shaft at one side of each movable block 95 is connected with each block groove 93, a plurality of fixing rods 96 are installed at the top of the moving block groove 91, the fixing rods 96 are respectively located at one side of the rotating shaft of each movable block 95, a fixed block 97 is arranged at the bottom of the moving plate 75, one end of the moving rod 92 is connected with the fine powder screen 63 through a thread, a moving rod spring 98 is installed between the other end of the moving rod 92 and the moving block groove 91, when the moving plate 75 moves, when the movable rod 92 moves, the fixed rod 96 can extrude the fixed fixture block 97 to retract into the fixture block groove 93 until the fixed fixture block 97 is separated from the movable fixture block 95, the movable rod spring 98 pushes the movable rod 92 to return quickly, meanwhile, the fine powder gauze 63 is loosened quickly, the fine powder gauze 63 vibrates, fine powder blocked in the fine powder gauze 63 is scattered, and the effect of automatically cleaning the fine powder gauze 63 is achieved.

The working principle is as follows: a user adds powder to the powder feeding device through the feeding pipe 21, the powder is firstly accumulated on the upper side of the powder cutting rotating block 22, when the powder cutting rotating block 22 rotates, the powder cutting knife 24 cuts the powder into the powder feeding groove 23 layer by layer, the powder feeding groove 23 extrudes the powder through the feeding gauze 26 at the bottom of the powder cutting rotating block 22, the powder can be cut and separated, the problem that the powder is difficult to select the powder is solved, meanwhile, the powder can uniformly fall into the powder selecting machine, the excessive powder on one side in the powder selecting machine is prevented from influencing the powder selection, the powder falls into the rotating cylinder 34 after passing through the feeding pipe 21, when the rotating cylinder 34 rotates, the powder enters the powder throwing groove 35 through centrifugal force and then is thrown out of the rotating cylinder 34 for powder selection, when the motor drives the rotating cylinder 34 to rotate, the powder cutting rotating block 22 can be driven by the connecting rod 37 to rotate together, the guide block 36 can prevent the powder from being accumulated between inlets of the powder throwing, the powder is guided to enter the powder throwing groove 35, when the powder passes through the powder throwing groove 35, the powder collides with the impact rods 46 to separate the powder which is adhered together, the powder selecting quality is improved, when the rotary drum 34 rotates, the weight plate 43 can move outwards due to centrifugal force, the elastic sleeve 45 is stretched to ensure that the distance between the impact rods 46 is enlarged, when larger powder is screened, the rotating speed requirement of the rotary drum 34 is enlarged, at the moment, the centrifugal force of the weight plate 43 is also increased, the elastic sleeve 45 is further stretched to enlarge the distance between the impact rods 46, the separating device 4 can automatically adapt to the size of the powder, the blower 51 uniformly blows air around the rotary drum 34 through the conical bottom of the fixed block 41, after the powder is thrown out of the powder throwing groove 35, fine powder can be blown away to select the powder, the coarse powder cannot be blown due to larger gravity, and can fall into the outlet 52 to be recovered, and coarse powder and fine powder are separated, the wind direction guide plate 61 causes the wind to carry the fine powder to move in the oblique upward direction, when the wind passes through the fine powder gauze 63, the coarse fine powder falls down, the coarse fine powder continues to rise, the falling fine powder is blown up below the fine powder gauze 63 and continuously moves up and down, as the wind is in the oblique upward direction, the dust slowly moves to one side, when the wind moves to the upper part of the fine powder groove 62, the wind is blocked by the fine powder groove 62, the dust falls into the fine powder groove 62 to play a role of filtering out the coarse fine powder, through a plurality of screening of fine powder gauzes 63, the fine powder can be classified according to the coarse and fine, the fine powder can be sucked into the powder storage box 71 by the induced draft fan 72, the fine powder can be blocked by the safety valve 74, the air pressure of one side of the induced draft fan 72 is continuously reduced, when the air pressure difference between two sides of the safety valve 74 reaches a certain degree, the safety valve 74 is opened, so that the fine, and because the fine powder is not needed to be absorbed continuously, the induced draft fan 72 with lower power can be used, the cost is saved, when the air pressure on one side of the safety valve 74 is reduced and the air pressure on the other side is not enough to open the safety valve 74, the moving plate 76 is pushed to move firstly, when the safety valve 74 is opened, the air pressure difference on the two sides is reduced, the moving plate spring 78 pulls the moving plate 76 back to the original position, so that the induced draft fan 72 can drive the moving plate 76 to move while absorbing the fine powder, the guide rail 88 can support the guide plate 82 and the moving plate and fix the moving direction, when the moving plate 76 moves, the roller 86 between the first guide plate 82 and the second guide plate 82 rolls in the middle of the guide plate 82, the guide plate connecting rod 87 becomes X-shaped, the upper guide plate 82 and the lower guide plate 82 are separated, and simultaneously drive the hose 77 on the inner side to extend, when the roller 86 rolls to the tail, the next guide plate 82 repeats the above process to achieve the effect of stretching the hose 77, otherwise, the guide plate 82 and the hose 77 are contracted together, the hose 77 can be stretched in a fixed manner through the hose guide device 8, the hose 77 is prevented from being folded when the hose 77 is contracted to prevent fine powder from being absorbed, when the moving plate 75 moves, the moving rod 92 can be driven to move through the fixed fixture block 97 and the movable fixture block 95, so that the fine powder gauze 63 is pulled through a wire, when the moving rod 92 moves, the fixed rod 96 can extrude the fixed fixture block 97 to be contracted into the fixture block groove 93 until the fixed fixture block 97 is separated from the movable fixture block 95, the moving rod spring 98 pushes the moving rod 92 to be quickly returned, meanwhile, the fine powder gauze 63 is quickly loosened, the fine powder gauze 63 vibrates, fine powder blocked in the fine powder gauze 63 is scattered, and the effect of automatically cleaning the fine powder gauze 63 is achieved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: 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

1. The utility model provides a multilayer sieving mechanism of selection powder machine, includes shell (1), its characterized in that: powder cutting device (2) is installed at shell (1) top, powder cutting device (2) include inlet pipe (21), install powder cutting rotatory piece (22) in inlet pipe (21), powder cutting rotatory piece (22) are provided with a plurality of powder feeding grooves (23) all around, powder feeding groove (23) top is provided with powder cutting knife (24) respectively, the cover has gauze cover (25) on powder cutting rotatory piece (22) the rotation axis, install feeding gauze (26) between gauze cover (25) and inlet pipe (21).

2. The multi-layer screening device of the powder concentrator as claimed in claim 1, wherein: the utility model discloses a powder cutting machine, including shell (1), shell (1) internally mounted has rotary device (3), rotary device (3) are including rotatory barrel supporting shoe (31), it has a plurality of bracing pieces (32) to link between rotatory barrel supporting shoe (31) and shell (1) inboard bottom, rotatory barrel motor (33) are installed to rotatory barrel supporting shoe (31) side, rotatory barrel (34) are installed to rotatory barrel motor (33) output shaft, rotatory barrel (34) bottom is provided with a plurality of powder grooves (35) of getting rid of all around, it is provided with guide block (36) respectively to get rid of between powder groove (35) the entry, be provided with connecting rod (37) between rotatory barrel (34) bottom and the rotatory piece (22) of surely powder.

3. The multi-layer screening device of the powder concentrator as claimed in claim 2, wherein: install separator (4) in getting rid of powder groove (35), separator (4) are including fixed block (41), fixed block (41) are located gets rid of powder groove (35) entry, it is provided with counterweight plate groove (42) to get rid of powder groove (35) export, install counterweight plate (43) in counterweight plate groove (42), be provided with in the middle of counterweight plate (43) and get rid of powder export (44), install elastic sleeve (45) between fixed block (41) and counterweight plate (43), elastic sleeve (45) internally mounted has a plurality of striking poles (46).

4. The multi-layered screening apparatus of a powder concentrator as claimed in claim 3, wherein: coarse powder filter equipment (5) is installed to shell (1) inboard bottom, coarse powder filter equipment (5) are including hair-dryer (51), hair-dryer (51) are located in the middle of shell (1) inboard bottom, shell (1) inboard bottom and fixed block (41) bottom are conical, shell (1) inboard bottom is provided with a plurality of middlings export (52) all around.

5. The multi-layered screening apparatus of a powder concentrator as claimed in claim 4, wherein: fine powder sieving mechanism (6) are installed to shell (1) inner wall, fine powder sieving mechanism (6) include wind direction baffle (61), wind direction baffle (61) top links to each other with shell (1) inner wall upper end, wind direction baffle (61) lower extreme extends to gets rid of powder groove (35) export upside, shell (1) inner wall is provided with a plurality of fine powder grooves (62), fine powder gauze (63) are installed respectively to fine powder groove (62) upside, fine powder gauze (63) both sides link to each other with shell (1) inner wall and wind direction baffle (61) respectively.

6. The multi-layer screening device of the powder concentrator as claimed in claim 5, wherein: still include fine powder suction device (7), fine powder suction device (7) include a plurality of powder storage box (71), draught fan (72) are installed respectively to powder storage box (71) top, draught fan (72) export links to each other with powder storage box (71) top, fine powder groove (62) bottom is provided with inhales powder pipe (73), draught fan (72) entry links to each other through the trachea with inhaling powder pipe (73) end, install relief valve (74) in inhaling powder pipe (73).

7. The multi-layered screening apparatus of a powder concentrator as claimed in claim 6, wherein: a moving groove (75) is formed in the powder suction pipe (73), a moving plate (76) is installed in the moving groove (75), the safety valve (74) is installed in the middle of the moving plate (76), hoses (77) are respectively installed on two sides of the safety valve (74), two ends of the powder suction pipe (73) are communicated through the hoses (77) by the safety valve (74), and a moving plate spring (78) is installed between one side of the moving plate (76) and one end of the moving groove (75).

8. The multi-layered screening apparatus of a powder concentrator as claimed in claim 7, wherein: the hose (77) is sleeved with a hose guide device (8), the hose guide device (8) comprises a plurality of elastic rings (81), the elastic ring (81) is connected with the outer side of the hose (77), a plurality of guide plates (82) are sleeved outside the hose (77), a thin plate (83) is arranged in the guide plate (82), an elastic ring groove (84) is arranged in the middle of the thin plate (83), the elastic ring groove (84) and the elastic ring (81) are in a matching structure, a plurality of roller grooves (85) are arranged on the inner side of the guide plate (82), idler wheels (86) are respectively arranged in the idler wheel grooves (85), guide plate connecting rods (87) are connected between the idler wheels (86) of the upper guide plate (82) and the lower guide plate (82) in a staggered manner, two guide plate connecting rods (87) on the same side are connected through rotating shafts, and guide rails (88) are arranged between the two sides of the guide plates (82), the two sides of the moving plate (75) and the two sides of the moving groove (75).

9. The multi-layered screening apparatus of a powder concentrator as claimed in claim 8, wherein: a fine powder gauze vibrating device (9) is arranged at the lower side of the hose guiding device (8), the fine powder gauze vibrating device (9) comprises a moving block groove (91), a moving rod (92) is arranged in the moving block groove (91), a plurality of block grooves (93) are arranged at the top of the moving rod (92), elastic balls (94) are arranged at the bottoms of the block grooves (93), a movable clamping block (95) is arranged on the upper side of the elastic ball (94), a rotating shaft on one side of the movable clamping block (95) is connected with the clamping block groove (93), a plurality of fixing rods (96) are arranged at the top of the moving block groove (91), the fixing rods (96) are respectively positioned at one side of the rotating shaft of the movable clamping block (95), a fixed fixture block (97) is arranged at the bottom of the moving plate (75), one end of the moving rod (92) is connected with the fine powder gauze (63) through a thread, and a moving rod spring (98) is arranged between the other end of the moving rod (92) and the moving block groove (91).