阅读说明：本技术 稀土溶解设备用溶解机构 (Dissolving mechanism for rare earth dissolving equipment ) 是由 杨腾跃 于 2019-11-08 设计创作，主要内容包括：本发明涉及稀土加工设备技术领域,具体是稀土溶解设备用溶解机构,稀土包括翻转组件、上料组件、输送组件和三个搅拌组件,所述上料组件设置在翻转组件的一端且上料组件与翻转组件传动连接,所述输送组件和三个搅拌组件均设置在翻转组件内。本发明将稀土矿通过上料组件添加到翻转组件内,再通过翻转组件工作,之后通过搅拌组件配合工作对溶液和稀土矿进行搅拌,使得稀土矿和溶液件反应,之后,翻转组件再工作,输送组件将稀土矿输送到中部。本发明中,稀土矿在反应过程中,杂质残留在翻转组件内,最终直接从翻转组件内排出,可以减轻过滤组件的负担,延长人工清理过滤组件的间隔时间。(The invention relates to the technical field of rare earth processing equipment, in particular to a dissolving mechanism for rare earth dissolving equipment. According to the invention, rare earth ore is added into the turnover assembly through the feeding assembly, then the turnover assembly works, then the stirring assembly is matched with the work to stir the solution and the rare earth ore, so that the rare earth ore reacts with the solution, then the turnover assembly works again, and the conveying assembly conveys the rare earth ore to the middle part. In the invention, impurities are remained in the turnover assembly in the reaction process of the rare earth ore and are finally directly discharged from the turnover assembly, so that the burden of the filtering assembly can be reduced, and the interval time for manually cleaning the filtering assembly is prolonged.)

1. Tombarthite dissolving equipment is with dissolving mechanism, its characterized in that: the automatic stirring device comprises a turnover component (21), a feeding component (22), a conveying component (23) and three stirring components (24), wherein the feeding component (22) is arranged at one end of the turnover component (21), the feeding component (22) is in transmission connection with the turnover component (21), and the conveying component (23) and the three stirring components (24) are arranged in the turnover component (21);

the turnover component (21) comprises a turnover shell (211), the turnover shell (211) is of a hollow structure, three dissolving shells (212) which are arranged at equal intervals are arranged beside the turnover shell (211), the three dissolving shells (212) are communicated with the turnover shell (211), the side walls of the three dissolving shells (212) are of a net structure, three turnover blocks (213) are arranged on the turnover shell (211), a plurality of turnover teeth (214) are arranged on the turnover blocks (213), a turnover shaft (215) is arranged beside the turnover shell (211), three turnover gears (216) are arranged on the turnover shaft (215), the turnover gears (216) respectively correspond to the three turnover blocks (213) one by one, each turnover gear (216) is meshed with the turnover teeth (214) on the corresponding turnover block (213), and a turnover motor (217) fixedly connected with the turnover shaft (215) is arranged at one end of the turnover shaft (215), the tail end of the turnover shell (211) is provided with a discharge hole.

2. The dissolution mechanism for a rare earth dissolution apparatus according to claim 1, characterized in that: material loading subassembly (22) include feeding funnel (221), bellows (222) and inlet pipe (223), the upper end of bellows (222) and the lower extreme fixed connection of feeding funnel (221), the lower extreme of bellows (222) and the upper end fixed connection of inlet pipe (223), be equipped with feed inlet (224) that correspond with inlet pipe (223) on upset shell (211), the both sides of inlet pipe (223) all are equipped with adapting unit (225), every adapting unit (225) all are including connecting rope (226), rolling disc (227) and two fixed pulley (228), rolling disc (227) cover is established on upset axle (215), the one end rolling disc (227) fixed connection of connecting rope (226), the other end of connecting rope (226) is walked around behind two fixed pulley (228) and is connected one side fixed connection of rope (226).

3. The dissolution mechanism for a rare earth dissolution apparatus according to claim 2, characterized in that: the cover is equipped with ring magnet (4) on inlet pipe (223), feed inlet (224) department is equipped with metal block (5).

4. The dissolution mechanism for a rare earth dissolution apparatus according to claim 1, characterized in that: conveying assembly (23) are including conveying motor (231), driving gear (232), driven gear (233), carry axle (234) and spiral leaf (235), carry axle (234) to be the level and set up in upset shell (211) and spiral leaf (235) cover and establish on carrying axle (234), driven gear (233) cover is established in the one end of carrying axle (234), conveying motor (231) are the level and set up on upset shell (211) and driving gear (232) cover and establish on the output of conveying motor (231) and through belt transmission connection between driving gear (232) and driven gear (233).

5. The dissolution mechanism for a rare earth dissolution apparatus according to claim 1, characterized in that: every stirring subassembly (24) all includes (mixing) shaft (241) and a plurality of installing frame (242), (mixing) shaft (241) are the level and set up in dissolving shell (212) that correspond and the both ends of (mixing) shaft (241) all with dissolve shell (212) and rotate and be connected, a plurality of installing frame (242) are the circumference and distribute on (mixing) shaft (241), one side of installing frame (242) is equipped with shovel board (243), the middle part of installing frame (242) is equipped with impingement plate (244).

6. The dissolution mechanism for a rare earth dissolution apparatus according to claim 1, characterized in that: feed inlet (224) department is equipped with four striker plates (6), and one side of four striker plates (6) all rotates with upset shell (211) to be connected, every one side of striker plate (6) all is equipped with the stupefied (7) of restriction, every the top of striker plate (6) all is equipped with restriction piece (8).

Technical Field

The invention relates to the technical field of rare earth processing equipment, in particular to a dissolving mechanism for rare earth dissolving equipment.

Background

The rare earth ore contains a large amount of other impurities, so that the rare earth ore needs to be dissolved firstly during processing, on one hand, the rare earth element is dissolved, the subsequent preparation of the rare earth material is facilitated, and on the other hand, the other impurities in the rare earth ore are filtered.

Chinese patent No. CN208320599U discloses a rare earth dissolving tank, which comprises a tank body, wherein the upper part of the tank body is fixedly connected with a fixed seat, the fixed seat is provided with an opening, the fixed seat is also provided with a liquid inlet pipe, the fixed seat is also provided with a stirring device for stirring materials in the tank body, the stirring device comprises a stirring paddle and a motor for driving the stirring paddle to rotate, the stirring paddle comprises a rotating shaft which is rotatably connected with the fixed seat along the vertical direction, two opposite sides of the lower end of the rotating shaft are respectively provided with a first stirring rod with an oval cross section and a second stirring rod with an oval cross section, two opposite sides of the middle part of the rotating shaft are respectively provided with a third stirring rod with an oval cross section and a fourth stirring rod with an oval cross section, the central shaft of the third stirring rod is vertical to the axis of the rotating shaft; the utility model discloses resistance when can reducing the stirring, the volume that tombarthite glued on the stirring rake when reducing the stirring reduces the load of motor, improves the dissolution efficiency of tombarthite. Above-mentioned patent makes the rare earth ore react with solution fast through the stirring when using, however, the device still has following weak point when using, firstly, the rare earth ore is introduced into solution, after the rare earth reaction dissolves, still leave impurity deposit, if continuous filter reuse to solution again, can increase the filtration step, time consuming, if add the rare earth ore to solution always, until the absorbing rare earth element saturation of solution, in the latter half of processing, can contain a large amount of impurity in the solution on the one hand, cause the influence to the reaction of rare earth ore and solution, on the other hand, the concentration of solution can be continuous to reduce, influence the reaction rate of rare earth ore and solution, and then influence the process velocity of rare earth ore, if change solution under the condition that solution does not absorb saturation, then can cause the waste of solution.

Disclosure of Invention

The invention aims to provide a dissolving mechanism for rare earth dissolving equipment.

In order to solve the technical problems, the invention provides the following technical scheme: the dissolving mechanism for the rare earth dissolving equipment comprises a turnover component, a feeding component, a conveying component and three stirring components, wherein the feeding component is arranged at one end of the turnover component and is in transmission connection with the turnover component, and the conveying component and the three stirring components are arranged in the turnover component;

the upset subassembly includes the upset shell, the side that the upset shell is hollow structure and upset shell is equipped with the three shell that dissolves that is equidistant setting, three dissolve the shell all with upset shell intercommunication, the three lateral wall that dissolves the shell all is network structure, be equipped with three upset piece on the upset shell, be equipped with a plurality of upset tooth on the upset piece, the side of upset shell is equipped with the trip shaft, be equipped with three upset gear on the trip shaft, the upset gear respectively with three upset piece one-to-one and every upset gear all with the upset tooth meshing on the upset piece rather than corresponding, the one end of trip shaft is equipped with rather than fixed connection's upset motor, the end of upset shell is equipped with the discharge gate.

On the basis of the technical scheme, the material loading subassembly includes feeding funnel, bellows and inlet pipe, the upper end of bellows and the lower extreme fixed connection of feeding funnel, the lower extreme of bellows and the upper end fixed connection of inlet pipe, be equipped with the feed inlet that corresponds with the inlet pipe on the upset shell, the both sides of inlet pipe all are equipped with adapting unit, every adapting unit all is including connecting rope, rolling dish and two fixed pulleys, the rolling dish cover is established on the trip shaft, the one end rolling dish fixed connection of connecting the rope, the other end of connecting the rope is walked around behind two fixed pulleys and is connected one side fixed connection of rope.

On the basis of the technical scheme, the feeding pipe is sleeved with the annular magnet, and the feeding port is provided with the metal block.

On the basis of the technical scheme, the conveying assembly comprises a conveying motor, a driving gear, a driven gear, a conveying shaft and spiral blades, the conveying shaft is horizontally arranged in the turnover shell, the spiral blades are sleeved on the conveying shaft, the driven gear is sleeved at one end of the conveying shaft, the conveying motor is horizontally arranged on the turnover shell, the driving gear is sleeved on the output end of the conveying motor, and the driving gear and the driven gear are connected through belt transmission.

On the basis of the technical scheme, each stirring subassembly all includes (mixing) shaft and a plurality of installing frame, the (mixing) shaft is the level setting and all rotates with the shell of dissolving at the both ends of (mixing) shaft in the shell that dissolves that corresponds and is connected, and a plurality of installing frame is the circumference and distributes on the (mixing) shaft, one side of installing frame is equipped with the shovel board, the middle part of installing frame is equipped with the impingement plate.

On the basis of the technical scheme, the feed inlet is provided with four striker plates, one sides of the four striker plates are rotatably connected with the turnover shell, and each striker plate is provided with a limiting edge and a limiting block above the striker plate.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, rare earth ore is added into the turnover assembly through the feeding assembly, then the turnover assembly works, then the stirring assembly is matched with the work to stir the solution and the rare earth ore, so that the rare earth ore reacts with the solution, then the turnover assembly works again, and the conveying assembly conveys the rare earth ore to the middle part. In the invention, impurities in the rare earth ore are remained in the turnover assembly and are finally directly discharged from the turnover assembly 21 in the reaction process, so that the burden of the filtering assembly can be reduced, and the interval time for manually cleaning the filtering assembly can be prolonged.

Drawings

FIG. 1 is a first perspective view of the present invention;

FIG. 2 is a schematic perspective view of the present invention;

FIG. 3 is a top view of the present invention;

FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;

FIG. 5 is an enlarged view at C of FIG. 4;

FIG. 6 is an enlarged view at D of FIG. 4;

FIG. 7 is a cross-sectional view taken along line B-B of FIG. 3;

fig. 8 is a partial cross-sectional view of the present invention.

The reference numbers in the figures are: the dissolving tank 1, the first dissolving tank 11, the second dissolving tank 12, the third dissolving tank 13, the dissolving mechanism 2, the turning assembly 21, the turning housing 211, the dissolving housing 212, the turning block 213, the turning teeth 214, the turning shaft 215, the turning gear 216, the turning motor 217, the discharge passage 218, the feeding assembly 22, the feeding hopper 221, the bellows 222, the feeding pipe 223, the feeding port 224, the connecting member 225, the connecting rope 226, the winding disc 227, the fixed pulley 228, the conveying assembly 23, the conveying motor 231, the driving gear 232, the driven gear 233, the conveying shaft 234, the spiral blade 235, the stirring assembly 24, the stirring shaft 241, the mounting frame 242, the shoveling plate 243, the impact plate 244, the auxiliary mechanism 3, the connecting assembly 31, the water pump 311, the connecting header pipe 312, the connecting branch pipe 313, the first control valve 314, the auxiliary assembly 32, the first auxiliary pipe 321, the second auxiliary pipe 322, the water spray head 323, the second control valve 324, the ring magnet 4, metal block 5, striker plate 6, restriction stupefied 7, restriction piece 8.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Referring to fig. 1 to 8, the present embodiment provides a rare earth dissolving apparatus, including a dissolving tank 1, a dissolving mechanism 2 and an auxiliary mechanism 3, where the dissolving mechanism 2 is disposed at an upper end of the dissolving tank 1, the auxiliary mechanism 3 is disposed on the dissolving tank 1, a first dissolving tank 11, a second dissolving tank 12 and a third dissolving tank 13 are disposed in the dissolving tank 1 at equal intervals, the dissolving mechanism 2 includes an overturning assembly 21, a feeding assembly 22, a conveying assembly 23 and three stirring assemblies 24, the feeding assembly 22 is disposed at one end of the overturning assembly 21 and the feeding assembly 22 is in transmission connection with the overturning assembly 21, the conveying assembly 23 and the three stirring assemblies 24 are disposed in the overturning assembly 21 and the three stirring assemblies 24 are in one-to-one correspondence with the first dissolving tank 11, the second dissolving tank 12 and the third dissolving tank 13 respectively, the auxiliary mechanism 3 includes three connecting assemblies 31 and three auxiliary assemblies 32, the three connecting assemblies 31 are respectively arranged at the sides of the first dissolving tank 11, the second dissolving tank 12 and the third dissolving tank 13, and the three auxiliary assemblies 32 are respectively connected with the three connecting assemblies 31 in a one-to-one correspondence manner.

When the invention is used, a solution is introduced into a first dissolving tank 11, rare earth ore is added into an overturning assembly 21 through a feeding assembly 22, then the overturning assembly 21 works to overturn the rare earth ore into a third dissolving tank 13, then the solution and the rare earth ore are stirred through the matching work of an auxiliary assembly 32 and a stirring assembly 24, so that the rare earth ore reacts with a solution piece, then the overturning assembly 21 works again, the conveying assembly 23 conveys the rare earth ore to the middle part, simultaneously, all connecting assemblies 31 work, new solution is added into the first dissolving tank 11, the solution in the first dissolving tank 11 is conveyed into a second dissolving tank 12, the solution in the second dissolving tank 12 is conveyed into the third dissolving tank 13, the solution in the third dissolving tank 13 is discharged, the feeding assembly 22 also works, a second part of rare earth ore is added into the overturning assembly 21, and the overturning assembly 21 works, the first part of rare earth ore falls into the second dissolving tank 12 to continue reacting with the solution, the first part of rare earth ore falls into the third dissolving tank 13 to react, and then the first part of rare earth ore circularly works according to the steps; according to the invention, the trisection rare earth ore and the trisection solution can be reacted simultaneously, new rare earth ore reacts with the solution with the lowest concentration in the third dissolving tank 13, the concentration of rare earth elements in the newly added rare earth ore is high, so that the solution with low concentration can react with the solution with low concentration to reach the state of absorption saturation, the rare earth ore reacts in the third dissolving tank 13 and then enters the second dissolving tank 12 to react with the solution in the second dissolving tank 12 for absorption, and then the rare earth ore enters the first dissolving tank 11 to react with the new solution with high concentration, so that the residual unabsorbed rare earth ore in the rare earth ore can be reacted; through the steps, on one hand, the rare earth ore can be completely absorbed, on the other hand, the solution can be ensured to fully absorb rare earth elements at last, saturation is achieved, and waste of the solution is avoided. In addition, in the invention, impurities in the rare earth ore are remained in the turnover assembly 21 in the reaction process and are finally directly discharged from the turnover assembly 21, so that the burden of the filter assembly can be reduced, and the interval time for manually cleaning the filter assembly can be prolonged.

The turnover assembly 21 comprises a turnover shell 211, the turnover shell 211 is of a hollow structure, three dissolving shells 212 are arranged beside the turnover shell 211 at equal intervals, the three dissolving shells 212 are respectively positioned in a first dissolving tank 11, a second dissolving tank 12 and a third dissolving tank 13, the three dissolving shells 212 are communicated with the turnover shell 211, the side walls of the three dissolving shells 212 are all of a net structure, the turnover shell 211 is rotatably connected with the upper end of the dissolving tank 1, three turnover blocks 213 are arranged on the turnover shell 211, a plurality of turnover teeth 214 are arranged on the turnover blocks 213, a turnover shaft 215 is arranged beside the turnover shell 211, the turnover shaft 215 is rotatably connected with the upper end of the dissolving tank 1, three turnover gears 216 are arranged on the turnover shaft 215, the turnover gears 216 respectively correspond to the three turnover blocks 213 one to one, and each turnover gear 216 is engaged with the turnover teeth 214 on the turnover block 213 corresponding to the turnover gear 216, one end of the turning shaft 215 is provided with a turning motor 217 fixedly connected with the turning shaft, the tail end of the turning shell 211 is provided with a discharge hole, and the dissolving tank 1 is provided with a discharge channel 218 matched with the discharge hole; when the rare earth ore dissolving device works, the turnover motor 217 works to drive the turnover shaft 215 to rotate, the turnover shaft 215 drives the turnover gear 216 to rotate, the turnover gear 216 drives the turnover teeth 214 and the turnover block 213 to rotate, the turnover shell 211 and the dissolving shell 212 are further driven to rotate, when the turnover shell 211 is positioned at the upper end of the dissolving shell 212, the dissolving shell 212 is positioned in the dissolving pool 1, the rare earth ore and a solution react, when the dissolving shell 212 is positioned above the turnover shell 211, the rare earth ore falls into the turnover shell 211, and the rare earth ore can be conveyed forwards through the conveying assembly 23.

The feeding assembly 22 comprises a feeding hopper 221, a corrugated pipe 222 and a feeding pipe 223, the upper end of the corrugated pipe 222 is fixedly connected with the lower end of the feeding hopper 221, the lower end of the corrugated pipe 222 is fixedly connected with the upper end of the feeding pipe 223, a feeding port 224 corresponding to the feeding pipe 223 is arranged on the overturning shell 211, connecting parts 225 are arranged on two sides of the feeding pipe 223, each connecting part 225 comprises a connecting rope 226, a winding disc 227 and two fixed pulleys 228, the winding disc 227 is sleeved on the overturning shaft 215, the two fixed pulleys 228 are mounted at the top of the dissolving tank 1, the winding disc 227 at one end of the connecting rope 226 is fixedly connected, and the other end of the connecting rope 226 is fixedly connected with one side of the connecting rope 226 after passing around the two fixed pulleys 228; when upset subassembly 21 work drives and makes dissolving shell 212 rotate to the top of upset shell 211, upset axle 215 rotates and drives rolling disc 227 and rotate, rolling disc 227 rolling connection rope 226 for connect rope 226 pulling feed pipe 223 rebound, avoid material loading subassembly 22 to cause the influence to upset subassembly 21, when upset subassembly 21 work makes dissolving shell 212 rotate to the below of upset shell 211, rolling disc 227 puts down connection rope 226, make feed pipe 223 drop feed inlet 224 department under the action of gravity.

The feeding pipe 223 is sleeved with an annular magnet 4, and a metal block 5 is arranged at the feeding port 224; the metal block 5 used here is a metal capable of attracting with the magnet, and through attraction of the annular magnet 4 and the metal block 5, the feed pipe 223 can be quickly positioned with the feed port 224 in the downward movement process, so that the feed pipe 223 is aligned with the feed port 224, and then the lower end of the feed pipe 223 is inserted into the feed port 224, thereby avoiding rare earth ore from entering the turnover shell 211 due to the fact that the feed pipe 223 rocks when passing through the corrugated pipe 222.

The conveying assembly 23 comprises a conveying motor 231, a driving gear 232, a driven gear 233, a conveying shaft 234 and a spiral blade 235, wherein the conveying shaft 234 is horizontally arranged in the turnover shell 211, the spiral blade 235 is sleeved on the conveying shaft 234, the driven gear 233 is sleeved at one end of the conveying shaft 234, the conveying motor 231 is horizontally arranged on the turnover shell 211, the driving gear 232 is sleeved on the output end of the conveying motor 231, and the driving gear 232 and the driven gear 233 are in transmission connection through a belt; drive driving gear 232 through conveying motor 231 work and rotate, driving gear 232 drives driven gear 233 through the transmission effect of belt and rotates, and then drives and carry axle 234 to rotate, carries axle 234 to drive helical blade 235 to rotate, will overturn the interior tombarthite ore of shell 211 and carry to discharge gate department.

Every stirring subassembly 24 all includes (mixing) shaft 241 and a plurality of installing frame 242, (mixing) shaft 241 is the level setting and dissolves in the shell 212 that corresponds and the both ends of (mixing) shaft 241 all with dissolve the shell 212 and rotate and be connected, a plurality of installing frame 242 is the circumference and distributes on (mixing) shaft 241, one side of installing frame 242 is equipped with shovel plate 243, the middle part of installing frame 242 is equipped with impingement plate 244.

Each connecting assembly 31 comprises a water pump 311, a connecting header pipe 312 and connecting branch pipes 313, the connecting header pipe 312 in the three connecting assemblies 31 is respectively communicated with the corresponding first dissolving tank 11, the second dissolving tank 12 and the third dissolving tank 13, the water pump 311 is arranged in the middle of the connecting header pipe 312, one end of each connecting branch pipe 313 is communicated with the connecting header pipe 312, the other end of the connecting branch pipe 313 beside the first dissolving tank 11 is communicated with the second dissolving tank 12, the other end of the connecting branch pipe 313 beside the second dissolving tank 12 is communicated with the third dissolving tank 13, and the connecting branch pipe 313 in each connecting assembly 31 is provided with a first control valve 314; the solution in the second dissolution tank 12 of the solution transport belt in the first dissolution tank 11, the solution in the third dissolution tank 13 of the solution transport belt in the second dissolution tank 12, and the solution in the third dissolution tank 13 can be discharged by the cooperation of the water pump 311, the connection header pipe 312, and the connection branch pipe 313, and the first control valve 314 is provided to control the closing of the connection branch pipe 313.

Each auxiliary assembly 32 comprises a first auxiliary pipe 321 and a second auxiliary pipe 322, one end of each first auxiliary pipe 321 and one end of each second auxiliary pipe 322 are communicated with one end of the connecting header pipe 312, the ends of the first auxiliary pipe 321 and the second auxiliary pipe 322 are respectively located at two sides of the dissolving tank 1, the ends of the first auxiliary pipe 321 and the second auxiliary pipe 322 are respectively provided with a plurality of water spray heads 323, the water spray heads 323 on the first auxiliary pipe 321 are all arranged towards the upper part of the stirring shaft 241, the water spray heads 323 on the second auxiliary pipe 322 are all arranged towards the lower part of the stirring shaft 241, each connecting header pipe 312 is provided with a second control valve 324, and the second control valves 324 are located at the rear part of the communication part of the connecting header pipe 312 and the connecting branch pipe 313; when the water pump 311 works, the first control valve 314 closes the connecting branch pipe 313, and the second control valve 324 opens the tail end of the connecting main pipe 312, the solution pumped out by the water pump 311 flows to all the water spray heads 323 through the first auxiliary pipe 321 and the second auxiliary pipe 322, and the water column sprayed by the water spray heads 323 washes the outside of the dissolving shell 212, on one hand, impurities of the rare earth ore can be prevented from being clamped in meshes on the dissolving shell 212, on the other hand, the water spray heads 323 work to form water flow, the stirring component 24 can be driven to rotate, meanwhile, the water flow can drive the rare earth ore to turn over, so that stirring is realized, and the reaction speed of the rare earth ore and the solution is improved.

The four striker plates 6 are arranged at the feed port 224, one sides of the four striker plates 6 are rotatably connected with the turnover shell 211, one side of each striker plate 6 is provided with a limiting ridge 7, and a limiting block 8 is arranged above each striker plate 6; when upset shell 211 is located the top of dissolving shell 212, four striker plates 6 are the tilt state under the action of gravity, make feed inlet 224 open, when dissolving shell 212 is located the top of upset shell 211, four striker plates 6 all are the horizontality, can be closed feed inlet 224, avoid rare earth ore to pour out from feed inlet 224, wherein, the effect of restriction stupefied 7 is to avoid striker plate 6 to be vertical state, when dissolving shell 212 and rotating to the top of upset shell 211 like this, striker plate 6 can rotate to the horizontality under the action of gravity owing to be the slope, the setting of restriction piece 8 is, when feed inlet 224 sets up down, all striker plates 6 all can rotate to the horizontality, avoid striker plate 6 turned angle too big to lead to feed inlet 224 unable closure.

The working principle of the invention is as follows: when in use, the rare earth ore is added into the dissolving shell 212 through the feed hopper, the corrugated pipe 222 and the feed pipe 223, the dissolving shell 212 is positioned in the third dissolving tank 13, so that the newly added rare earth ore reacts with the low-concentration solution after two times of use, then the turnover motor 217 works to drive the turnover shaft 215 to rotate, the turnover shaft 215 drives the turnover gear 216 to rotate, the turnover gear 216 drives the turnover teeth 214 and the turnover block 213 to rotate, further the turnover shell 211 and the dissolving shell 212 are driven to rotate, the dissolving shell 212 rotates to the upper part of the turnover shell 211, the rare earth ore in the dissolving shell 212 falls into the turnover shell 211, the driving gear 232 is driven to rotate through the transmission of the conveying motor 231, the driving gear 232 drives the driven gear 233 to rotate through the transmission of the belt, further the conveying shaft 234 drives the spiral vane 235 to rotate, the rare earth ore in the turnover shell 211 is conveyed forwards, and at the same time, through the cooperation of water pump 311, connecting main 312 and connecting branch 313, can be with in the solution conveyer belt second dissolving tank 12 in the first dissolving tank 11, in the solution conveyer belt third dissolving tank 13 in the second dissolving tank 12, discharge the solution in the third dissolving tank 13, the setting of first control valve 314 is the closure that is used for control connection branch 313, afterwards, upset subassembly 21 reworks, fall the rare earth ore in the shell 211 that overturns in dissolving the shell 212, and react with the solution in the dissolving tank 1 that corresponds, pass through at last, conveying subassembly 23 is discharged impurity from the discharge gate.