CN108855411B

CN108855411B - A screening breaker for rare earth carbonate

Info

Publication number: CN108855411B
Application number: CN201810741101.2A
Authority: CN
Inventors: 不公告发明人
Original assignee: Zhejiang Pujiang Diandian New Material Technology Co Ltd
Current assignee: Zhejiang Pujiang Diandian New Material Technology Co ltd
Priority date: 2017-05-14
Filing date: 2017-05-14
Publication date: 2020-04-28
Anticipated expiration: 2037-05-14
Also published as: CN108855410A; CN108855411A; CN106902913A; CN106902913B; CN108855410B

Abstract

The invention relates to a screening and crushing device, in particular to a screening and crushing device for rare earth carbonate. The invention aims to provide a screening and crushing device for rare earth carbonate. In order to solve the technical problem, the invention provides a screening and crushing device for rare earth carbonate, which comprises a cylinder, a lifting device, a crushing device, a screen, a ring plate, a hopper, support legs and the like; be provided with reducing mechanism in the top of barrel, be provided with screen cloth and circle board in the barrel, the inside wall of screen cloth and circle board passes through bolted connection, and the top welding of barrel has the loading hopper, and the loading hopper is linked together with the barrel, and the top of loading hopper is connected with reducing mechanism, and the bottom welding of barrel has a plurality of landing leg. The screening and crushing device for rare earth carbonate provided by the invention has the advantages of simple structure, easiness in maintenance and low maintenance cost, reduces the cost of enterprises, and relieves the burden of the enterprises.

Description

A screening breaker for rare earth carbonate

Technical Field

The invention relates to a screening and crushing device, in particular to a screening and crushing device for rare earth carbonate.

Background

Rare earth elements were discovered in succession from the end of the 18 th century, when water-insoluble solid oxides were often referred to as soils. The rare earth is generally separated in an oxide state, although the reserves on the earth are huge, the smelting and purification difficulty is large, and the rare earth is obtained. Generally, rare earths on earth exist in the form of rare earth oxides. Rare earths are indispensable elements for manufacturing various weaponry equipment such as precision guided weapons called "smart bombs", radars, and night vision goggles. Because of its low natural abundance and the symbiotic form of oxide or oxysalt minerals, it is called "rare earth". Lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, which are lanthanide elements in the periodic table of chemical elements, and 17 elements in total, namely scandium and yttrium, which are two elements closely related to 15 elements in the lanthanide series, are called rare earth elements, which are called rare earth elements for short, wherein the 15 chemical elements with atomic numbers of 57-71 are also called lanthanide elements in the total. Sieving is a method of separating particles of a particle group according to the particle size, specific gravity, chargeability, magnetism, and other powder properties. Secondly, the operation of dividing the mixed materials with different particle sizes into various particle size grades by using a perforated screen surface is called screening.

The screening and crushing device for rare earth carbonate usually adopts a traditional structure, has various parts, is troublesome to maintain and repair, has high maintenance cost, increases the expenditure of enterprises, increases the burden of the enterprises, and is not favorable for the production and development of the enterprises.

Disclosure of Invention

(1) Technical problem to be solved

The invention aims to overcome the defects that the traditional structure is usually adopted, the parts are various, and the maintenance and the repair are troublesome in the existing screening and crushing device for rare earth carbonate, and the technical problem to be solved by the invention is to provide the screening and crushing device for rare earth carbonate.

(2) Technical scheme

In order to solve the technical problem, the invention provides a screening and crushing device for rare earth carbonate, which comprises a cylinder, a lifting device, a crushing device, a screen, a ring plate, a feeding hopper, supporting legs, a discharging pipe and a valve, wherein the cylinder is provided with a cylinder body; be provided with elevating gear on the barrel, be provided with reducing mechanism in the top of barrel, be provided with screen cloth and circle board in the barrel, the screen cloth passes through bolted connection with the inside wall of circle board, the top welding of barrel has the loading hopper, the loading hopper is linked together with the barrel, the top of loading hopper is connected with reducing mechanism, the bottom welding of barrel has a plurality of landing leg, the upper end of discharging pipe is connected through the welded mode with the middle part of barrel bottom, be provided with the valve on the discharging pipe, discharging pipe and valve are located between the landing leg.

Preferably, the lifting device comprises a rotating motor, a screw rod, a bearing seat I, a sliding rail, a sliding block, a nut and a bearing seat II; the rotary motor is arranged on the left side of the feeding hopper, the rotary motor is connected with the top of the barrel through a bolt, a hole is formed in the left part of the top of the barrel, an output shaft of the rotary motor extends downwards into the barrel through the hole in the left part of the top of the barrel, the lower end of the output shaft of the rotary motor is connected with the upper end of the lead screw in a welding mode, the lead screw is positioned in the barrel, the upper end of the lead screw is connected with a bearing in a bearing seat I in an interference connection mode, the bearing seat I is connected with the left inner side wall of the barrel through a bolt, a sliding rail is arranged below the bearing seat I and is connected with the left inner side wall of the barrel in a welding mode, a sliding block is arranged on the right side of the sliding rail and is in sliding connection with the sliding rail, the right side wall of the sliding block is connected with the left side wall of a nut in a welding mode, the, the bearing in the bearing seat II is connected with the lower end of the screw rod in an interference connection mode, the bearing seat II is arranged below the sliding rail, and the bearing seat II is connected with the left inner side wall of the barrel through a bolt.

Preferably, the crushing device comprises a portal frame, an upper air cylinder, a lower air cylinder, an upper telescopic rod, a lower telescopic rod, a stirring motor, a stirring shaft and a pressing plate; the portal frame sets up directly over the loading hopper, two lower extremes of portal frame are connected through the welded mode with the top of the inclined wall about the loading hopper respectively, be provided with upper and lower cylinder under the portal frame, upper and lower cylinder passes through bolted connection with the portal frame, upper and lower cylinder is connected with the upper and lower telescopic link that sets up below it, upper and lower telescopic link passes through bolted connection with the agitator motor that sets up below it, agitator motor is connected with the (mixing) shaft that sets up below it, the (mixing) shaft passes through the welded mode with the clamp plate that sets up below it and is connected, agitator motor, (mixing) shaft and clamp plate all set up in the loading hopper, the clamp plate is located directly over the screen cloth, the clamp plate sets up swing joint with.

Preferably, the device also comprises a bracket I, a left and right air cylinder I, a left and right telescopic rod I, a toothed plate I, a bracket II, a left and right air cylinder II, a left and right telescopic rod II and a toothed plate II; the support I is arranged on the left side of the barrel, the upper end of the support I is connected with the bottoms of the left and right air cylinders I through bolts, the left and right air cylinders I are connected with the left end of the left and right telescopic rods I, a hole is formed in the lower portion of the left side wall of the barrel, the left and right telescopic rods I extend into the barrel through the hole in the lower portion of the left side wall of the barrel, the right end of the left and right telescopic rods I is connected with the left side wall of the toothed plate I in a welding mode, the toothed plate I is arranged in the barrel and movably connected with the barrel, the toothed plate I is located below the bearing seat II, the support II is arranged on the right side of the barrel, the upper end of the support II is connected with the bottom of the left and right air cylinders II through bolts, the left and right air cylinders II are connected with the right end of the left and right telescopic rods II, a hole is formed in the lower portion of the right side wall of the, pinion rack II sets up in the barrel, and pinion rack II establishes to swing joint with the barrel, and pinion rack II sets up for the symmetry formula with pinion rack I, and pinion rack II sets up to swing joint with pinion rack I.

Preferably, the device also comprises a triangular material guide plate, a fixed plate and an L-shaped movable plate, the triangular material guide plate is symmetrically arranged in the cylinder body from left to right, the triangular material guide plate is connected with the side wall of the cylinder body in a welding mode, the triangular material guide plate is arranged below the bearing seat II, the fixing plates are symmetrically arranged in the cylinder body left and right, the fixing plates are connected with the side wall of the cylinder body in a welding mode, the top of each fixing plate is connected with the bottom of the triangular material guide plate in a welding mode, a groove I is horizontally arranged on the side wall of the fixed plate, a groove II is vertically arranged at the top of the toothed plate I, the vertical recess III that opens at the top of pinion rack II, bilateral symmetry formula is provided with L shape fly leaf in the barrel, and the upper portion slidingtype of L shape fly leaf sets up in the recess I of fixed plate, and the lower part setting of the L shape fly leaf of the left part in the barrel is in the recess II of pinion rack I, and the lower part setting of the L shape fly leaf of the right part in the barrel is in the recess III of pinion rack II.

Preferably, the rotating speed of the rotating motor is set to 300-.

The working principle is as follows: because the invention comprises a cylinder body, a lifting device, a crushing device, a screen, a ring plate, a charging hopper, supporting legs, a discharging pipe and a valve; so the staff can add the barrel through the loading hopper with the carbonate rare earth in, the carbonate rare earth that gets into in the barrel falls into on the screen cloth of circle inboard downwards, simultaneously the staff passes through elevating gear and drives circle board and screen cloth, and the carbonate rare earth rocks from top to bottom together, go out the carbonate rare earth that the granularity is suitable through the sieve mesh screen, the too big carbonate rare earth of granularity stays on the screen cloth, then the staff carries out the breakage to the carbonate rare earth who stays on the screen cloth through reducing mechanism, and with the broken suitable granularity that becomes of carbonate rare earth, the carbonate rare earth after the breakage falls to the bottom of barrel through the screen cloth, then the staff opens the valve, discharge can with the carbonate rare earth through the discharging pipe.

Because the lifting device comprises a rotating motor, a screw rod, a bearing seat I, a slide rail, a slide block, a nut and a bearing seat II; so the staff can start the rotating electrical machines and operate, and the rotating electrical machines drives the lead screw and rotates together, and lead screw drive nut, circle board and screen cloth to and the carbonic acid tombarthite on the screen cloth move together, and the staff passes through rotating electrical machines's positive and negative commentaries on classics, can rock the screening from top to bottom to the carbonic acid tombarthite on the screen cloth.

Because reducing mechanism is including the portal frame, go up lower cylinder, upper and lower telescopic link, agitator motor, (mixing) shaft and clamp plate, so the staff can start upper and lower cylinder and move, upper and lower cylinder drives agitator motor and clamp plate through upper and lower telescopic link and moves downwards together to utilize the clamp plate to press the too big rare earth carbonate of granule on the screen cloth, the screen cloth can be made by metal material, can resist pressing of clamp plate certain degree, prevents that the screen cloth from taking place excessive deformation. Meanwhile, a worker can start the stirring motor to operate, the stirring motor drives the pressing plate to rotate together through the stirring shaft, and the pressing plate crushes the pressed rare earth carbonate under the combined action of pressure and torsion and crushes the rare earth carbonate into proper granularity.

The device also comprises a bracket I, a left air cylinder I, a right air cylinder I, a left telescopic rod I, a toothed plate I, a bracket II, a left air cylinder II, a right telescopic rod II and a toothed plate II; so the staff can the simultaneous start about cylinder I with control cylinder II and carry out the action in opposite directions, control cylinder I through control telescopic link I drive pinion rack I move right, control cylinder II through control telescopic link II drive pinion rack II move left, pinion rack I and pinion rack II are to the breakage once more of the carbonic acid tombarthite in the centre, further improvement crushing effect. When the staff arranges the material through the discharging pipe, the staff also can improve the speed of arranging the material through the action of controlling cylinder I and controlling cylinder II.

Because still including the triangle stock guide, fixed plate and L shape fly leaf, and the upper portion slidingtype setting of L shape fly leaf is in recess I of fixed plate, the lower part setting of the L shape fly leaf of the left part in the barrel is in recess II of pinion rack I, the lower part setting of the L shape fly leaf of the right part in the barrel is in recess III of pinion rack II, so carbonic acid tombarthite can fall into between pinion rack I and pinion rack II along the triangle stock guide, and when preventing pinion rack I and pinion rack II from carrying out the breakage to the carbonic acid tombarthite of centre, the carbonic acid tombarthite that lasts to fall enters into the outside of pinion rack I and pinion rack II.

The rotating speed of the rotating motor is set to be 300-1500 r/min, so that the operation is more accurate, the cylinder diameters of the upper cylinder and the lower cylinder are set to be 40-200mm, the stroke of the upper cylinder and the lower cylinder is set to be 5-10m, the operation is more stable and reliable, and the rotating speed of the stirring motor is set to be 600-1500r/min, so that the rotating speed is convenient to adjust.

(3) Advantageous effects

The screening and crushing device for rare earth carbonate, provided by the invention, has the advantages of simple structure, easiness in maintenance and repair, low maintenance and repair cost, reduction in cost expenditure of enterprises and reduction in burden of the enterprises, can be used for crushing and screening the rare earth carbonate by combining the crushing device and the screen, and is convenient for subsequent processing and treatment of the rare earth carbonate.

Drawings

Fig. 1 is a schematic front view structure of the present invention.

Fig. 2 is a front view structural schematic diagram of a toothed plate i of the present invention.

Fig. 3 is a partial front view structure diagram of the present invention.

The labels in the figures are: 1-cylinder, 2-lifting device, 3-crushing device, 4-screen, 5-ring plate, 6-charging hopper, 7-supporting leg, 8-discharging pipe, 9-valve, 21-rotating motor, 22-screw rod, 23-bearing seat I, 24-sliding rail, 25-sliding block, 26-nut, 27-bearing seat II, 31-portal frame, 32-upper and lower cylinders, 33-upper and lower telescopic rods, 34-stirring motor, 35-stirring shaft, 36-pressing plate, 41-bracket I, 42-left and right cylinders I, 43-left and right telescopic rods I, 44-toothed plate I, 45-bracket II, 46-left and right cylinders II, 47-left and right telescopic rods II, 48-toothed plate II, 51-triangular guide plate, 52-fixed plate, 53-groove I, 54-L-shaped movable plate, 55-groove II, 56-groove III.

Detailed Description

The invention is further described below with reference to the figures and examples.

Example 1

A screening and crushing device for rare earth carbonate is shown in figures 1-3 and comprises a cylinder body 1, a lifting device 2, a crushing device 3, a screen 4, a ring plate 5, a feeding hopper 6, supporting legs 7, a discharging pipe 8 and a valve 9; be provided with elevating gear 2 on barrel 1, be provided with reducing mechanism 3 in the top of barrel 1, be provided with screen cloth 4 and crown plate 5 in barrel 1, screen cloth 4 passes through bolted connection with the inside wall of crown plate 5, the top welding of barrel 1 has loading hopper 6, loading hopper 6 is linked together with barrel 1, the top of loading hopper 6 is connected with reducing mechanism 3, the bottom welding of barrel 1 has a plurality of landing leg 7, the upper end of discharging pipe 8 is connected through the welded mode with the middle part of barrel 1 bottom, be provided with valve 9 on discharging pipe 8, discharging pipe 8 and valve 9 are located between landing leg 7.

Example 2

The lifting device 2 comprises a rotary motor 21, a screw rod 22, a bearing seat I23, a slide rail 24, a slide block 25, a nut 26 and a bearing seat II 27; the rotary motor 21 is arranged on the left side of the feeding hopper 6, the rotary motor 21 is connected with the top of the barrel 1 through a bolt, a hole is formed in the left part of the top of the barrel 1, an output shaft of the rotary motor 21 extends downwards into the barrel 1 through the hole in the left part of the top of the barrel 1, the lower end of the output shaft of the rotary motor 21 is connected with the upper end of the screw rod 22 in a welding mode, the screw rod 22 is positioned in the barrel 1, the upper end of the screw rod 22 is connected with a bearing in a bearing seat I23 in an interference connection mode, the bearing seat I23 is connected with the left inner side wall of the barrel 1 through a bolt, a slide rail 24 is arranged below the bearing seat I23, the slide rail 24 is connected with the left inner side wall of the barrel 1 in a welding mode, a slide block 25 is arranged on the right side of the slide rail 24, the slide block 25 is in sliding connection, the nut 26 is arranged on the screw rod 22, the nut 26 is matched with the screw rod 22, the right side wall of the nut 26 is connected with the left side wall of the ring plate 5 in a welding mode, a bearing in the bearing seat II 27 is connected with the lower end of the screw rod 22 in an interference connection mode, the bearing seat II 27 is arranged below the sliding rail 24, and the bearing seat II 27 is connected with the left inner side wall of the barrel body 1 through a bolt.

Example 3

The crushing device 3 comprises a portal frame 31, an upper cylinder 32, a lower cylinder 32, an upper telescopic rod 33, a lower telescopic rod 33, a stirring motor 34, a stirring shaft 35 and a pressing plate 36; the gantry 31 is arranged right above the feeding hopper 6, two lower ends of the gantry 31 are respectively connected with the top of a left inclined wall and a right inclined wall of the feeding hopper 6 in a welding mode, an upper air cylinder 32 and a lower air cylinder 32 are arranged right below the gantry 31, the upper air cylinder 32 and the lower air cylinder 32 are connected with an upper telescopic rod 33 and a lower telescopic rod 33 which are arranged below the gantry 31 through bolts, the upper telescopic rod 33 and the lower telescopic rod 33 are connected with a stirring motor 34 which is arranged below the upper telescopic rod 33 through bolts, the stirring motor 34 is connected with a stirring shaft 35 which is arranged below the stirring motor 34, the stirring shaft 35 is connected with a pressing plate 36 which is arranged below the stirring shaft 35 through a welding mode, the stirring motor 34, the stirring shaft 35 and the pressing plate 36 are all arranged in the feeding hopper 6, the pressing plate.

Example 4

The device also comprises a bracket I41, a left and right air cylinder I42, a left and right telescopic rod I43, a toothed plate I44, a bracket II 45, a left and right air cylinder II 46, a left and right telescopic rod II 47 and a toothed plate II 48; the support I41 is arranged on the left side of the barrel body 1, the upper end of the support I41 is connected with the bottoms of the left and right air cylinders I42 through bolts, the left and right air cylinders I42 are connected with the left end of a left and right telescopic rod I43, a hole is formed in the lower portion of the left side wall of the barrel body 1, the left and right telescopic rod I43 extends into the barrel body 1 through the hole in the lower portion of the left side wall of the barrel body 1, the right end of the left and right telescopic rod I43 is connected with the left side wall of a toothed plate I44 in a welding mode, the toothed plate I44 is arranged in the barrel body 1, the toothed plate I44 is movably connected with the barrel body 1, the toothed plate I44 is located below a bearing seat II 27, the support II 45 is arranged on the right side of the barrel body 1, the upper end of the support II 45 is connected with the bottoms of the left and right air cylinders II 46 through bolts, the left and right ends of the left and right telescopic rods, the left end of controlling telescopic link II 47 is connected through the welded mode with the right side wall of pinion rack II 48, and pinion rack II 48 sets up in barrel 1, and pinion rack II 48 establishes to swing joint with barrel 1, and pinion rack II 48 sets up for the symmetrical formula with pinion rack I44, and pinion rack II 48 sets up to swing joint with pinion rack I44.

The cylinder body 1 is internally provided with the triangular guide plates 51 in a bilateral symmetry mode, the triangular guide plates 51 are connected with the side wall of the cylinder body 1 in a welding mode, the triangular guide plates 51 are arranged below the bearing seat II 27, the fixing plates 52 are arranged in the cylinder body 1 in a bilateral symmetry mode, the fixing plates 52 are connected with the side wall of the cylinder body 1 in a welding mode, the top of each fixing plate 52 is connected with the bottom of the triangular guide plate 51 in a welding mode, the side wall of each fixing plate 52 is horizontally provided with a groove I53, the top of each toothed plate I44 is vertically provided with a groove II 55, the top of each toothed plate II 48 is vertically provided with a groove III 56, the cylinder body 1 is internally provided with the L-shaped movable plates 54 in a bilateral symmetry mode, the upper parts of the L-shaped movable plates 54 are arranged in the grooves I53 of the fixing plates 52, the lower parts of the L-shaped movable plates 54 at the left part in the cylinder body 1 are arranged in the grooves II 55 of the toothed plates I44, the lower part of an L-shaped movable plate 54 at the right part in the cylinder body 1 is arranged in a groove III 56 of the toothed plate II 48.

The rotating speed of the rotating motor 21 is set to 300-.

The working principle is as follows: the invention comprises a cylinder body 1, a lifting device 2, a crushing device 3, a screen 4, a ring plate 5, a charging hopper 6, supporting legs 7, a discharging pipe 8 and a valve 9; so the staff can add the rare earth carbonate into barrel 1 through loading hopper 6, the rare earth carbonate that gets into in the barrel 1 falls into on the screen cloth 4 in the circle board 5 downwards, simultaneously the staff passes through elevating gear 2 and drives circle board 5 and screen cloth 4, and the rare earth carbonate rocks from top to bottom together, go out the suitable rare earth carbonate of granularity through screen cloth 4 sieve, the too big rare earth carbonate of granularity stays on screen cloth 4, then the staff passes through reducing mechanism 3 and carries out the breakage to the rare earth carbonate who stays on screen cloth 4, and break into suitable granularity with the rare earth carbonate, the broken rare earth carbonate falls to the bottom of barrel 1 through screen cloth 4, then the staff opens valve 9, discharge rare earth carbonate through discharging pipe 8 can.

Because the lifting device 2 comprises a rotating motor 21, a screw rod 22, a bearing seat I23, a slide rail 24, a slide block 25, a nut 26 and a bearing seat II 27; therefore, the worker can start the rotating motor 21 to operate, the rotating motor 21 drives the screw rod 22 to rotate together, the screw rod 22 drives the nut 26, the ring plate 5 and the screen 4 to move together with the rare earth carbonate on the screen 4, and the worker can shake and screen the rare earth carbonate on the screen 4 up and down through the forward and reverse rotation of the rotating motor 21.

Because reducing mechanism 3 is including portal frame 31, upper and lower cylinder 32, upper and lower telescopic link 33, agitator motor 34, (mixing) shaft 35 and clamp plate 36, so the staff can start upper and lower cylinder 32 and move, upper and lower cylinder 32 passes through upper and lower telescopic link 33 and drives agitator motor 34 and clamp plate 36 and move downwards together to utilize clamp plate 36 to press the too big rare earth carbonate of granularity on screen cloth 4, screen cloth 4 can be made by metal material, can resist the pressing of clamp plate 36 certain degree, prevent that screen cloth 4 from taking place excessive deformation. Meanwhile, a worker can start the stirring motor 34 to operate, the stirring motor 34 drives the pressing plate 36 to rotate together through the stirring shaft 35, and the pressing plate 36 crushes the pressed rare earth carbonate under the combined action of pressure and torsion and crushes the rare earth carbonate into proper granularity.

Because the device also comprises a bracket I41, a left and right air cylinder I42, a left and right telescopic rod I43, a toothed plate I44, a bracket II 45, a left and right air cylinder II 46, a left and right telescopic rod II 47 and a toothed plate II 48; therefore the staff can start simultaneously about cylinder I42 and control cylinder II 46 and carry out the action in opposite directions, control cylinder I42 and drive pinion rack I44 through controlling telescopic link I43 and move right, control cylinder II 46 and drive pinion rack II 48 through controlling telescopic link II 47 and move left, pinion rack I44 and pinion rack II 48 are to the crushing once more of the carbonic acid tombarthite in centre, further improvement crushing effect. When the worker discharges materials through the discharge pipe 8, the worker can also improve the discharging speed through the actions of the left air cylinder I42 and the right air cylinder II 46.

Because the rare earth carbonate crusher further comprises a triangular guide plate 51, a fixed plate 52 and an L-shaped movable plate 54, the upper part of the L-shaped movable plate 54 is slidably arranged in a groove I53 of the fixed plate 52, the lower part of the L-shaped movable plate 54 at the left part in the cylinder 1 is arranged in a groove II 55 of the toothed plate I44, and the lower part of the L-shaped movable plate 54 at the right part in the cylinder 1 is arranged in a groove III 56 of the toothed plate II 48, rare earth carbonate can fall between the toothed plate I44 and the toothed plate II 48 along the triangular guide plate 51, and when the toothed plate I44 and the toothed plate II 48 are used for crushing the middle rare earth carbonate, the continuously falling rare earth carbonate enters the outer sides of the toothed plate I44 and the toothed plate II 48.

The rotating speed of the rotating motor 21 is set to be 300-1500 r/min, so that the operation is more accurate, the cylinder diameter of the upper and lower cylinders 32 is set to be 40-200mm, the stroke of the upper and lower cylinders 32 is set to be 5-10m, the operation is more stable and reliable, and the rotating speed of the stirring motor 34 is set to be 600-1500r/min, so that the rotating speed is convenient to adjust.

The above examples are merely representative of preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these are all within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims

1. A screening and crushing device for rare earth carbonate comprises a cylinder body (1), a lifting device (2), a crushing device (3), a screen (4), a ring plate (5), a feeding hopper (6), supporting legs (7), a discharging pipe (8) and a valve (9); the automatic feeding device is characterized in that a lifting device (2) is arranged on a barrel (1), a crushing device (3) is arranged above the barrel (1), a screen (4) and a ring plate (5) are arranged in the barrel (1), the screen (4) is connected with the inner side wall of the ring plate (5) through a bolt, a feeding hopper (6) is welded at the top of the barrel (1), the feeding hopper (6) is communicated with the barrel (1), the top of the feeding hopper (6) is connected with the crushing device (3), a plurality of supporting legs (7) are welded at the bottom of the barrel (1), the upper end of a discharge pipe (8) is connected with the middle of the bottom of the barrel (1) in a welding mode, a valve (9) is arranged on the discharge pipe (8), and the discharge pipe (8) and the valve (9) are located between the; the lifting device (2) is characterized by comprising a rotating motor (21), a screw rod (22), a bearing seat I (23), a sliding rail (24), a sliding block (25), a nut (26) and a bearing seat II (27); the rotary motor (21) is arranged on the left side of the charging hopper (6), the rotary motor (21) is connected with the top of the barrel (1) through a bolt, a hole is formed in the left part of the top of the barrel (1), an output shaft of the rotary motor (21) extends downwards into the barrel (1) through the hole in the left part of the top of the barrel (1), the lower end of the output shaft of the rotary motor (21) is connected with the upper end of a screw rod (22) in a welding mode, the screw rod (22) is positioned in the barrel (1), the upper end of the screw rod (22) is connected with a bearing in a bearing seat I (23) in an interference connection mode, the bearing seat I (23) is connected with the left inner side wall of the barrel (1) through a bolt, a sliding rail (24) is arranged below the bearing seat I (23), the sliding rail (24) is connected with the left inner side wall of the barrel (1) in a welding mode, a sliding block (, the sliding block (25) is in sliding connection with the sliding rail (24), the right side wall of the sliding block (25) is connected with the left side wall of the nut (26) in a welding mode, the nut (26) is arranged on the screw rod (22), the nut (26) is matched with the screw rod (22), the right side wall of the nut (26) is connected with the left side wall of the ring plate (5) in a welding mode, a bearing in the bearing seat II (27) is connected with the lower end of the screw rod (22) in an interference connection mode, the bearing seat II (27) is arranged below the sliding rail (24), and the bearing seat II (27) is connected with the left inner side wall of the barrel (1) through bolts;

the device also comprises a support I (41), a left and right air cylinder I (42), a left and right telescopic rod I (43), a toothed plate I (44), a support II (45), a left and right air cylinder II (46), a left and right telescopic rod II (47) and a toothed plate II (48); the support I (41) is arranged on the left side of the barrel body (1), the upper end of the support I (41) is connected with the bottoms of the left and right air cylinders I (42) through bolts, the left and right air cylinders I (42) are connected with the left end of the left and right telescopic rods I (43), the lower part of the left side wall of the barrel body (1) is provided with a hole, the left and right telescopic rods I (43) extend into the barrel body (1) through the hole on the lower part of the left side wall of the barrel body (1), the right end of the left and right telescopic rods I (43) is connected with the left side wall of the toothed plate I (44) in a welding mode, the toothed plate I (44) is arranged in the barrel body (1), the toothed plate I (44) is movably connected with the barrel body (1), the toothed plate I (44) is positioned below the bearing seat II (27), the support II (45) is arranged on the right side of the barrel body (1), the upper end of the support II (45) is connected with the bottoms of the left and right air cylinders II, the lower part of the right side wall of the barrel body (1) is provided with a hole, a left telescopic rod II (47) and a right telescopic rod II (47) extend into the barrel body (1) through the hole at the lower part of the right side wall of the barrel body (1), the left end of the left telescopic rod II (47) and the right side wall of a toothed plate II (48) are connected in a welding mode, the toothed plate II (48) is arranged in the barrel body (1), the toothed plate II (48) and the barrel body (1) are movably connected, the toothed plate II (48) and the toothed plate I (44) are symmetrically arranged, and the toothed plate II (48) and the toothed plate I (44) are movably connected;

the bearing support is characterized by further comprising a triangular material guide plate (51), a fixed plate (52) and an L-shaped movable plate (54), the triangular material guide plate (51) is symmetrically arranged in the cylinder body (1) from side to side, the triangular material guide plate (51) is connected with the side wall of the cylinder body (1) in a welding mode, the triangular material guide plate (51) is arranged below the bearing seat II (27), the fixed plate (52) is symmetrically arranged in the cylinder body (1) from side to side, the fixed plate (52) is connected with the side wall of the cylinder body (1) in a welding mode, the top of the fixed plate (52) is connected with the bottom of the triangular material guide plate (51) in a welding mode, a groove I (53) is horizontally formed in the side wall of the fixed plate (52), a groove II (55) is vertically formed in the top of the toothed plate I (44), a groove III (56) is vertically formed in the top of the toothed plate II (48), the L-shaped movable plate (54), the upper part of the L-shaped movable plate (54) is arranged in a groove I (53) of the fixed plate (52) in a sliding mode, the lower part of the L-shaped movable plate (54) at the left part in the cylinder body (1) is arranged in a groove II (55) of the toothed plate I (44), and the lower part of the L-shaped movable plate (54) at the right part in the cylinder body (1) is arranged in a groove III (56) of the toothed plate II (48).