A lithium spodumene production coarse particle suspension preheater

Abstract

The application discloses a lithium spodumene production coarse particle suspension preheater and relates to the technical field of suspension preheaters.The lithium spodumene production coarse particle suspension preheater comprises a supporting base, four supporting rods are fixedly connected to the upper surface of the supporting base, a top plate is fixedly connected to the upper surfaces of the four supporting rods, a preheater assembly, a first connecting shaft drives a screening barrel to rotate rapidly, the screening barrel drives multiple coarse particles to rotate in the process of rotation and screens the coarse particles through multiple screening holes, coarse particles are screened through centrifugal force, unqualified coarse particles can be prevented from entering the inside of the preheater, the final production quality is improved, the screening efficiency and quality are high, and multiple coarse particles are moved backward along the inner wall of the conveying pipe in the process of rotation of the spiral blade; the spiral blade is arranged, coarse particles can be prevented from being blocked during feeding, uniform feeding can be realized, and the stability during feeding is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of suspension preheater, in particular to a lithium spodumene production coarse particle suspension preheater. BACKGROUND

[0002] The suspension preheater is used to heat the raw material by the hot gas flow discharged from the rotary kiln or the decomposing furnace, so as to achieve the preheating and decomposing part of the carbonate effect, and in the lithium spodumene production, the suspension preheater is needed to preheat the coarse particles.

[0003] In order to improve the production quality of lithium spodumene and prevent the internal blockage of the suspension preheater, the coarse particles need to be screened before entering the internal suspension preheater, so as to ensure that there is no too large coarse particle in the coarse particles entering the internal suspension preheater, and the existing suspension preheater lacks a screening assembly, and other machines are needed to screen the coarse particles, collect the coarse particles, and then transport them to the side of the suspension preheater, which increases the production steps and reduces the production efficiency. SUMMARY

[0004] The present application aims to at least solve one of the technical problems in the prior art, and provide a lithium spodumene production coarse particle suspension preheater, which can solve the problem that the existing suspension preheater lacks a screening assembly, and other machines are needed to screen the coarse particles, collect the coarse particles, and then transport them to the side of the suspension preheater, which increases the production steps and reduces the production efficiency.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a lithium spodumene production coarse particle suspension preheater, comprising a supporting base, four supporting rods fixedly connected to the upper surface of the supporting base, a top plate fixedly connected to the upper surface of the four supporting rods, a preheater assembly, and the preheater assembly being arranged on the four supporting rods.

[0006] A screening and feeding assembly, the screening and feeding assembly comprising a discharge box, a protection box fixedly connected to the upper surface of the discharge box and communicating with the discharge box, and arc-shaped sliding grooves formed in the front and rear inner walls of the protection box.

[0007] Wherein, two arc-shaped sliding blocks are slidingly connected to the inner walls of the two arc-shaped sliding grooves, and a screening barrel is fixedly connected to the opposite surfaces of the two upper and lower corresponding arc-shaped sliding blocks.

[0008] Wherein, a plurality of screening holes are formed in the surface of the screening barrel and communicate with the screening barrel.

[0009] Preferably, a first connecting shaft is fixedly connected to the front surface of the screening barrel, and the front end of the first connecting shaft is rotatably connected to the front surface of the protection box.

[0010] The outer wall of the first connecting shaft is fixedly sleeved with a first belt pulley, and the rear surface of the screening barrel is fixedly sleeved with a second sealing bearing which is communicated with the screening barrel.

[0011] Preferably, the inner wall of the second sealing bearing is fixedly sleeved with a conveying pipe, the rear end of the conveying pipe penetrates through the rear surface of the protection box, the rear end of the conveying pipe is fixedly connected with a connecting pipe communicated therewith, and the lower surface of the conveying pipe is fixedly connected with a rectangular discharge box communicated therewith.

[0012] Preferably, the left and right inner walls of the protection box are both fixedly connected with two material guide plates, the opposite ends of the two material guide plates are both fixedly connected to the bottom wall of the protection box in an inclined manner, and the upper surface of the protection box is provided with a protection door;

[0013] The lower surface of the protection door is fixedly connected with a concave plate, and the concave portion of the concave plate is fixedly connected with a plurality of hard bristles.

[0014] The upper surface of the top plate is fixedly connected with a servo motor, the output end of the servo motor is fixedly connected with a third connecting shaft, and the outer wall of the third connecting shaft is fixedly sleeved with two second belt pulleys.

[0015] The second belt pulley on the displacement rear side is drivingly connected with the first belt pulley through a first belt.

[0016] Preferably, the front surface of the discharge box is provided with a rectangular slot communicated therewith, and the inner wall of the discharge box is fixedly connected with an inclined plate.

[0017] The front end of the inclined plate penetrates through the inner wall of the rectangular slot, and the lower surface of the inclined plate is fixedly connected with a tapered connecting box communicated therewith.

[0018] Preferably, the upper surface of the top plate is fixedly connected with an air pump, the output end of the air pump is fixedly connected with a second air conveying pipe, and the end of the second air conveying pipe away from the air pump is fixedly connected with a first air conveying pipe communicated therewith.

[0019] The lower surface of the first air conveying pipe is fixedly connected with an L-shaped fixed plate, the L-shaped fixed plate is fixedly connected with the protection box, and the front surface of the first air conveying pipe is fixedly connected with a plurality of third air conveying pipes communicated therewith.

[0020] The plurality of third air conveying pipes penetrate into the interior of the discharge box, and the plurality of third air conveying pipes are all in abutment with the upper surface of the inclined plate.

[0021] Preferably, the lower surface of the tapered connecting box is fixedly connected with a material conveying pipe communicated therewith, and the front surface of the material conveying pipe is rotatably connected with a second connecting shaft.

[0022] The rear end of the second connecting shaft rotatably penetrates into the inner wall of the material conveying pipe, and the outer wall of the second connecting shaft is fixedly sleeved with a spiral blade.

[0023] The outer wall of the front end of the second connecting shaft is fixedly sleeved with a third belt pulley, and the third belt pulley and the second belt pulley located on the front side are connected together through a second belt.

[0024] Preferably, the preheater assembly comprises a fixed plate, a ventilation pipe, a connecting hose, a reaction cylinder, a ventilation cylinder, and a plurality of reaction cylinders are arranged in a staggered manner on the support base; each adjacent two reaction cylinders are connected and communicated with a ventilation cylinder.

[0025] The ventilation cylinder is connected and communicated with the discharge pipe at the bottom of the reaction cylinder located above; the upper ventilation cylinder is connected and communicated with the discharge pipe; the lower reaction cylinder is connected and communicated with the connecting hose; and the lower adjacent two reaction cylinders are connected and communicated with the ventilation pipe.

[0026] Preferably, the outer wall of each of the plurality of reaction cylinders is fixedly connected with a fixed plate, and the plurality of fixed plates are fixedly connected with corresponding support rods; the rear end of the feed pipe is fixedly connected with the corresponding ventilation cylinder; and the feed pipe is communicated with the ventilation cylinder connected therewith.

[0027] Preferably, the inner wall of the reaction cylinder is fixedly connected with a rectangular fixed plate, the rectangular fixed plate is fixedly sleeved with a first sealing bearing, the inner wall of the first sealing bearing is fixedly sleeved with a fourth connecting shaft, and the lower end of the fourth connecting shaft is fixedly connected with a fan.

[0028] The outer wall of the fourth connecting shaft is fixedly connected with two connecting rods on the front and back sides, the ends of the two corresponding connecting rods away from the fourth connecting shaft are fixedly connected with arc-shaped scrapers, and the arc-shaped parts of the two corresponding arc-shaped scrapers are matched with the inner wall of the reaction cylinder.

[0029] The plurality of reaction cylinders are completely identical in structure.

[0030] Compared with the prior art, the present application has the following advantages:

[0031] 1. The lithium spodumene production coarse particle suspension preheater starts the servo motor, the servo motor drives the third connecting shaft to rotate, the third connecting shaft drives the two second belt pulleys to rotate, the second belt pulley located on the rear side drives the first connecting shaft to rotate through the first belt and the first belt pulley, the first connecting shaft drives the screening barrel to rotate rapidly, the screening barrel drives a plurality of coarse particles to rotate and screens the coarse particles through a plurality of screening holes in the rotation, the coarse particles are screened by centrifugal force, which not only prevents unqualified coarse particles from entering the inside of the preheater, improves the final production quality, and has high screening efficiency and quality, but also prevents coarse particles from being blocked when feeding by setting the spiral blade, and realizes uniform feeding and improves the stability when feeding.

[0032] 2、The lithium feldspar production coarse particle suspension preheater, the hot gas flow rises and drives the fan to rotate, the fan drives the fourth connecting shaft to rotate, the fourth connecting shaft drives the two arc-shaped scrapers to rotate through the four connecting rods, and the two arc-shaped scrapers clean the inner wall of the reaction cylinder during rotation, thereby improving the practicality of the reaction cylinder.

[0033] 3、The lithium feldspar production coarse particle suspension preheater, the external industrial dust collector is started, the external industrial dust collector sucks the coarse particles accumulated at the bottom of the screening barrel into the interior of the industrial dust collector through the connecting pipe, the conveying pipe and the rectangular discharge box, thereby completing the cleaning of the screening barrel and improving the practicality of the screening barrel during use.

[0034] 4、The lithium feldspar production coarse particle suspension preheater, the gas pump inputs the generated gas into the interior of the first gas conveying pipe through the second gas conveying pipe and discharges the gas through the multiple third gas conveying pipes, the gas flows along the inclined surface of the inclined plate, and the coarse particles falling onto the inclined plate are moved in the flow of the gas, thereby preventing the coarse particles from being accumulated on the inclined plate and improving the stability of the coarse particles during conveying.

[0035] 5、The lithium feldspar production coarse particle suspension preheater, the screening barrel is in contact with the multiple hard bristles during rotation, the multiple hard bristles enter the interior of the multiple screening holes to clean the inner wall of the screening holes, thereby preventing the particles from being stuck in the inner wall of the screening holes to cause blockage and improving the continuity of the screening barrel during use. The screening barrel drives the four arc-shaped sliding blocks to rotate through the two arc-shaped sliding grooves during rotation, the four arc-shaped sliding blocks and the two arc-shaped sliding grooves assist the rotation of the screening barrel, thereby improving the stability of the screening barrel during continuous work. BRIEF DESCRIPTION OF DRAWINGS

[0036] The application will be further described below in combination with the drawings and examples:

[0037] Figure 1 It is a structural schematic diagram of the whole application;

[0038] Figure 2 It is a top surface schematic diagram of the application;

[0039] Figure 3 It is a screening barrel surface schematic diagram of the application;

[0040] Figure 4 It is an L-shaped fixing plate and discharge box connection schematic diagram of the application;

[0041] Figure 5 It is a discharge box upper surface top view schematic diagram of the application;

[0042] Figure 6 It is an inclined plate lower surface bottom view schematic diagram of the application;

[0043] Figure 7 It is the second connecting shaft and helical blade connection schematic diagram of the application;

[0044] Figure 8 It is the inside overhead schematic diagram of the protective box of the application;

[0045] Figure 9 It is the inside bottom schematic diagram of the reaction cylinder of the application;

[0046] Figure 10 It is Figure 9 The enlarged schematic diagram at A.

[0047] The figure mark: 1, the air pipe; 2, connecting hose; 3, support base; 4, support rod; 5, fixed plate; 6, reaction cylinder; 7, servo motor; 8, top plate; 9, protective box; 10, discharge box; 11, rectangular groove; 12, first belt pulley; 13, first connecting shaft; 14, second belt pulley; 15, third belt pulley; 16, second connecting shaft; 17, conical connecting box; 18, material conveying pipe; 19, connecting pipe; 20, conveying pipe; 21, rectangular fixed plate; 22, air cylinder; 23, first air conveying pipe; 24, second air conveying pipe; 25, air pump; 26, concave plate; 27, hard bristle; 28, arc-shaped sliding block; 29, inclined plate; 30, first sealing bearing; 31, third connecting shaft; 32, screening bucket; 33, second sealing bearing; 34, material guide plate; 35, L-shaped fixed plate; 36, third air conveying pipe; 37, arc-shaped chute; 38, helical blade; 39, rectangular discharge box; 40, fan; 41, connecting rod; 42, arc-shaped scraper; 43, fourth connecting shaft. DETAILED DESCRIPTION

[0048] This part will describe the specific embodiments of the application in detail, the preferred embodiments of the application are shown in the drawings, the role of the drawings is to supplement the description of the text part with graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the application, but it cannot be understood as the limitation of the protection scope of the application.

[0049] In the description of the application, it should be understood that, in relation to the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. Based on the orientation or position relationship shown in the drawing, it is only for the convenience of describing the application and simplifying the description, and it does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore it cannot be understood as the limitation of the application.

[0050] In the description of the present application, greater than, less than, more than, etc. are understood as not including the number, above, below, within, etc. are understood as including the number. If the first, second is described only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying the relative importance of the indicated technical features or implying the number of the indicated technical features or the sequence of the indicated technical features.

[0051] In the description of the present application, unless otherwise explicitly limited, the words such as setting, installing, connecting, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meaning of the above words in the present application in combination with the specific content of the technical scheme.

[0052] Please refer to Figures 1-10 The present application provides a technical scheme: a lithium feldspar production coarse particle suspension preheater, comprising a supporting base 3, the upper surface of the supporting base 3 is fixedly connected with four supporting rods 4, the upper surface of the four supporting rods 4 is fixedly connected with a top plate 8, a preheater assembly, the preheater assembly is arranged on the four supporting rods 4.

[0053] The screening and feeding assembly comprises a discharge box 10, the upper surface of the discharge box 10 is fixedly connected with a protection box 9 which is communicated therewith, and the front and rear inner walls of the protection box 9 are both provided with arc-shaped sliding grooves 37.

[0054] Among them, the inner walls of the two arc-shaped sliding grooves 37 are both slidably connected with two arc-shaped sliding blocks 28, and the opposite surfaces of the two upper and lower corresponding arc-shaped sliding blocks 28 are fixedly connected with a screening bucket 32.

[0055] Among them, the surface of the screening bucket 32 is provided with a plurality of screening holes which are communicated therewith.

[0056] Further, the front surface of the screening bucket 32 is fixedly connected with a first connecting shaft 13, and the front end of the first connecting shaft 13 is rotatably penetrated through the front surface of the protection box 9.

[0057] Among them, the outer wall of the first connecting shaft 13 is fixedly sleeved with a first belt pulley 12, the rear surface of the screening bucket 32 is fixedly sleeved with a second sealing bearing 33, and the second sealing bearing 33 is communicated with the screening bucket 32.

[0058] Further, the inner wall of the second sealing bearing 33 is fixedly sleeved with a conveying pipe 20, the rear end of the conveying pipe 20 is penetrated through the rear surface of the protection box 9, the rear end of the conveying pipe 20 is fixedly connected with a connecting pipe 19 which is communicated therewith, and the lower surface of the conveying pipe 20 is fixedly connected with a rectangular discharge box 39 which is communicated therewith.

[0059] Further, the left and right inner walls of the protection box 9 are both fixedly connected with two material guiding plates 34, the opposite ends of the two material guiding plates 34 are both fixedly connected to the bottom wall of the protection box 9 in an inclined manner, and the upper surface of the protection box 9 is provided with a protection door.

[0060] The lower surface of the protective door is fixedly connected with a concave plate 26, and a plurality of hard bristles 27 are fixedly connected to the concave portion of the concave plate 26;

[0061] The upper surface of the top plate 8 is fixedly connected with a servo motor 7, the output end of the servo motor 7 is fixedly connected with a third connecting shaft 31, and the outer wall of the third connecting shaft 31 is fixedly sleeved with two second belt pulleys 14;

[0062] The second belt pulley 14 on the displacement rear side is drivenly connected with the first belt pulley 12 through a first belt;

[0063] When the coarse particles are screened, the external connecting pipe is fixedly connected with the connecting pipe 19, and then the coarse particles can be transported into the interior of the screening barrel 32 through the external connecting pipe, the connecting pipe 19, the conveying pipe 20 and the rectangular discharge box 39 by using the pneumatic conveying method, and then the servo motor 7 is started to drive the third connecting shaft 31 to rotate, the third connecting shaft 31 drives the two second belt pulleys 14 to rotate, the second belt pulley 14 on the rear side drives the first connecting shaft 13 to rotate through the first belt and the first belt pulley 12, and the first connecting shaft 13 drives the screening barrel 32 to rotate rapidly, the screening barrel 32 drives a plurality of coarse particles to rotate in the rotating process and screens the coarse particles through a plurality of screening holes, and the coarse particles are screened by using the centrifugal force, which can not only prevent unqualified coarse particles from entering the interior of the preheater to improve the final production quality, but also has high screening efficiency and quality, can meet the production demand, and the screening barrel 32 is in contact with the plurality of hard bristles 27 in the rotating process, the plurality of hard bristles 27 enter the interior of the plurality of screening holes to clean the inner wall of the screening hole, prevent the particles from being stuck in the inner wall of the screening hole to cause the blocking, improve the continuity of the screening barrel 32 in use, and the four arc-shaped sliding blocks 28 drive the two arc-shaped sliding grooves 37 to rotate in the rotating process of the screening barrel 32, the four arc-shaped sliding blocks 28 and the two arc-shaped sliding grooves 37 assist the rotation of the screening barrel 32 to improve the stability of the screening barrel 32 in continuous work.

[0064] Further, the front surface of the discharge box 10 is provided with a rectangular groove 11 in communication therewith, and the inner wall of the discharge box 10 is fixedly connected with an inclined plate 29;

[0065] The front end of the inclined plate 29 penetrates through the inner wall of the rectangular groove 11, and the lower surface of the inclined plate 29 is fixedly connected with a tapered connecting box 17 in communication therewith.

[0066] Further, the upper surface of the top plate 8 is fixedly connected with an air pump 25, the output end of the air pump 25 is fixedly connected with a second air conveying pipe 24, and the end of the second air conveying pipe 24 away from the air pump 25 is fixedly connected with a first air conveying pipe 23 in communication therewith;

[0067] The lower surface of the first air pipe 23 is fixedly connected with an L-shaped fixed plate 35, the L-shaped fixed plate 35 is fixedly connected with the protection box 9, and the front surface of the first air pipe 23 is fixedly connected with a plurality of third air pipes 36 communicated with the first air pipe 23;

[0068] The plurality of third air pipes 36 penetrate into the interior of the feeding and discharging box 10, and the plurality of third air pipes 36 are in close contact with the upper surface of the inclined plate 29.

[0069] The qualified coarse particles fall onto the surfaces of the two guide plates 34, and then fall onto the upper surface of the inclined plate 29 along the inclined surfaces of the two guide plates 34. Then the air pump 25 is started, the output power of the air pump 25 is not too large, and the actual output power can be obtained through multiple tests on site. The air generated by the air pump 25 is input into the interior of the first air pipe 23 through the second air pipe 24, and is discharged through the plurality of third air pipes 36. The gas flows along the inclined surface of the inclined plate 29, and the coarse particles falling onto the inclined plate 29 are moved in the flow of the gas, so that the coarse particles are prevented from being accumulated on the inclined plate 29, and the stability of the coarse particles during conveying is improved.

[0070] Further, the lower surface of the conical connecting box 17 is fixedly connected with a feeding pipe 18 communicated with the conical connecting box 17, and the front surface of the feeding pipe 18 is rotatably connected with a second connecting shaft 16.

[0071] The rear end of the second connecting shaft 16 is rotatably penetrated into the inner wall of the feeding pipe 18, and the outer wall of the second connecting shaft 16 is fixedly sleeved with a spiral blade 38.

[0072] The outer wall of the front end of the second connecting shaft 16 is fixedly sleeved with a third belt pulley 15, and the third belt pulley 15 and the second belt pulley 14 located on the front side are drivenly connected together through a second belt.

[0073] The third connecting shaft 31 is rotatably driven by the second belt pulley 14 located on the front side and the second belt to rotate the third belt pulley 15, the second connecting shaft 16 and the spiral blade 38. The coarse particles falling onto the inclined plate 29 fall into the interior of the conical connecting box 17 along the inclined surface of the inclined plate 29, the coarse particles falling into the interior of the conical connecting box 17 fall into the interior of the feeding pipe 18, and the spiral blade 38 drives the plurality of coarse particles to move backward along the inner wall of the feeding pipe 18 in rotation. By arranging the spiral blade 38, the coarse particles can be prevented from being blocked during feeding, uniform feeding can be realized, and the stability during feeding is improved.

[0074] Further, the preheater assembly comprises the fixing plates 5, the air pipes 1, the connecting hoses 2, the reaction cylinders 6 and the air cylinders 22, the reaction cylinders 6 are arranged on the support bases 3 in a staggered manner, and each two adjacent reaction cylinders 6 are connected and communicated with the air cylinder 22.

[0075] The air cylinder 22 is connected and communicated with the discharging pipeline at the bottom of the upper reaction cylinder, the upper air cylinder 22 is connected with the discharging pipeline communicated therewith, the lower reaction cylinder 6 is connected with the connecting hose 2 communicated therewith, and the two adjacent lower reaction cylinders 6 are connected and communicated with the air pipe 1.

[0076] Further, the outer walls of the reaction cylinders 6 are fixedly connected with the fixing plates 5, the fixing plates 5 are fixedly connected with the corresponding support rods 4, the rear end of the discharging pipeline 18 is fixedly connected with the air cylinder 22, and the discharging pipeline 18 is communicated with the air cylinder 22.

[0077] Further, the inner wall of the reaction cylinder 6 is fixedly connected with the rectangular fixing plate 21, the first sealing bearing 30 is fixedly sleeved on the rectangular fixing plate 21, the inner wall of the first sealing bearing 30 is fixedly sleeved with the fourth connecting shaft 43, and the lower end of the fourth connecting shaft 43 is fixedly connected with the fan 40.

[0078] The outer walls of the fourth connecting shaft 43 are fixedly connected with two connecting rods 41 on the front and rear sides, the two corresponding connecting rods 41 are fixedly connected with the arc-shaped scrapers 42 away from the fourth connecting shaft 43, and the arc-shaped scrapers 42 are in close contact with the inner wall of the reaction cylinder 6.

[0079] The structures of the plurality of reaction cylinders 6 are completely same.

[0080] The use, the operator first connects the hose 2 and the ventilation pipe 1 with the rotary kiln, when the device works, the hot gas flow generated in the rotary kiln through the ventilation pipe 1 to the lower reaction cylinder 6, and then by the ventilation cylinder 22 from bottom to top into the remaining reaction cylinder 6, while the coarse particles will be through the material pipe 18 into the connected with its ventilation cylinder 22 inside, through the hot gas flow upward flow will be the upper ventilation cylinder 22 in the coarse particles into the upper reaction cylinder 6, from the upper reaction cylinder 6 into the coarse particles derived from the lower ventilation cylinder 22, and again by the hot gas flow into the adjacent reaction cylinder 6, so on coarse particles by the upper into the remaining reaction cylinder 6, and with the internal heat exchange with the hot gas, in order to realize the preheating operation, after the coarse particles preheating is completed, coarse particles from the connecting hose 2 into the rotary kiln to continue heating, while the hot gas flow upward will drive the fan 40 rotation, fan 40 will drive the fourth connecting shaft 43 rotation, the fourth connecting shaft 43 through the four connecting rod 41 drive two arc-shaped scraper 42 rotation, two arc-shaped scraper 42 in the rotation will be the inner wall of the reaction cylinder 6 cleaning, improve the practicability of the reaction cylinder 6, when the need to clean the unqualified material in the screening barrel 32 inside, first connect the pipe 19 with the outside of the dust extraction pipe connected, and then start the external industrial dust collector, external industrial dust collector through the connecting pipe 19, conveying pipe 20, rectangular discharge tank 39 will be accumulated in the bottom of the screening barrel 32 coarse particles into the industrial dust collector inside, complete the cleaning of the screening barrel 32, improve the practicability of the screening barrel 32 in use.

[0081] Working principle: when the coarse particles are screened, first, the external connecting pipe is fixedly connected with the connecting pipe 19, then the coarse particles can be transported by pneumatic conveying method through the external connecting pipe, the connecting pipe 19, the conveying pipe 20 and the rectangular discharge box 39 to the inside of the screening barrel 32, then the servo motor 7 is started, the servo motor 7 drives the third connecting shaft 31 to rotate, the third connecting shaft 31 drives the two second pulleys 14 to rotate, the second pulley 14 at the rear side drives the first connecting shaft 13 to rotate through the first belt and the first pulley 12, the first connecting shaft 13 drives the screening barrel 32 to rotate quickly, the screening barrel 32 drives the plurality of coarse particles to rotate in the rotating process and screens the coarse particles through the plurality of screening holes, the coarse particles are screened by centrifugal force, which can not only prevent unqualified coarse particles from entering the inside of the preheater, improve the final production quality, and has high screening efficiency and quality, can meet the production demand, at the same time, the screening barrel 32 will be in contact with the plurality of hard bristles 27 in the rotating process, the plurality of hard bristles 27 will enter the inside of the plurality of screening holes and clean the inner wall of the screening hole, prevent the particles from being stuck in the inner wall of the screening hole to cause the blocking, improve the continuity of the screening barrel 32 in use, at the same time, the screening barrel 32 will drive the four arc-shaped sliding blocks 28 to rotate through the two arc-shaped sliding grooves 37 in the rotating process, the four arc-shaped sliding blocks 28 and the two arc-shaped sliding grooves 37 assist the rotation of the screening barrel 32, improve the stability of the screening barrel 32 in continuous work.

[0082] Further, the air pump 25 is started, the output power of the air pump 25 is not easy to be too large, the actual output power can be obtained by multiple tests according to the site condition, the air generated by the air pump 25 is input into the inside of the first gas conveying pipe 23 through the second gas conveying pipe 24, and is discharged through the plurality of third gas conveying pipes 36, the gas flows along the inclined surface of the inclined plate 29, which assists the coarse particles falling on the inclined plate 29 to move in the flow of the gas, prevents the coarse particles from being accumulated on the inclined plate 29, and improves the stability of the coarse particles in conveying.

[0083] Further, the third connecting shaft 31 drives the third pulley 15 to rotate through the second pulley 14 at the front side and the second belt, the third pulley 15 drives the second connecting shaft 16 and the spiral blade 38 to rotate, the coarse particles falling on the inclined plate 29 fall into the inside of the conical connecting box 17 along the inclined surface of the inclined plate 29, the coarse particles falling into the inside of the conical connecting box 17 will enter the inside of the conveying pipe 18, the spiral blade 38 drives the plurality of coarse particles to move backward along the inner wall of the conveying pipe 18 in the rotating process, the spiral blade 38 can not only prevent the coarse particles from being blocked when feeding, but also realize uniform feeding, and improve the stability when feeding.

[0084] Further, when the device is in operation, the hot gas flow generated in the rotary kiln flows into the lower reaction cylinder 6 through the air pipe 1, and then is sequentially delivered from the lower to the upper air cylinder 22 into the remaining reaction cylinders 6. Meanwhile, the coarse particles enter the air cylinder 22 connected thereto through the material conveying pipe 18, and are brought into the upper reaction cylinder 6 by the upward flow of the hot gas flow. The coarse particles led out of the upper reaction cylinder 6 enter the lower air cylinder 22, and are again brought into the adjacent reaction cylinder 6 by the hot gas flow. In this way, the coarse particles enter the remaining reaction cylinders 6 from the upper to the lower one by one, and exchange heat with the internal hot gas, so as to realize the preheating operation. After the preheating of the coarse particles is completed, the coarse particles are discharged from the connecting hose 2 into the rotary kiln for further heating. Meanwhile, the upward flow of the hot gas flow drives the fan 40 to rotate, which drives the fourth connecting shaft 43 to rotate, and then drives the two arc-shaped scrapers 42 to rotate through the four connecting rods 41. The two arc-shaped scrapers 42 clean the inner wall of the reaction cylinder 6 in rotation, improving the practicability of the reaction cylinder 6. When it is necessary to clean the unqualified raw materials in the screening barrel 32, the connecting pipe 19 is first connected to the external dust collection pipe, and then the external industrial dust collector is started. The external industrial dust collector sucks the coarse particles accumulated at the bottom of the screening barrel 32 into the interior of the industrial dust collector through the connecting pipe 19, the conveying pipe 20 and the rectangular discharge box 39, thereby completing the cleaning of the screening barrel 32 and improving the practicability of the screening barrel 32 in use.

[0085] The above describes the embodiments of the present application in detail in combination with the drawings, but the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application.

Claims

1. A lithium spodumene production coarse particle suspension preheater, characterized by, The utility model relates to a kind of screening feeding assemblies and preheater assemblies. Support base (3), the upper surface of support base (3) is fixedly connected with four support rods (4), the upper surface of four support rods (4) is fixedly connected with top plate (8); Preheater assembly, preheater assembly is arranged on four support rods (4), Screening feeding assembly, the upper surface of discharge box (10) is fixedly connected with protection box (9) communicated therewith, the front and rear inner walls in protection box (9) are both provided with arc-shaped sliding groove (37), Wherein, the inner wall of two arc-shaped sliding grooves (37) is slidably connected with two arc-shaped sliding blocks (28), the opposite surface of two upper and lower corresponding arc-shaped sliding blocks (28) is fixedly connected with screening bucket (32); Wherein, the surface of screening bucket (32) is provided with a plurality of screening holes communicated therewith; The front surface of the discharge box (10) is provided with a rectangular slot (11) communicated therewith, and the inner wall of the discharge box (10) is fixedly connected with an inclined plate (29); The front end of the inclined plate (29) penetrates the inner wall of the rectangular slot (11), and the lower surface of the inclined plate (29) is fixedly connected with a tapered connecting box (17) communicated therewith; The upper surface of the top plate (8) is fixedly connected with an air pump (25), the output end of the air pump (25) is fixedly connected with a second gas conveying pipe (24), and the end away from the air pump (25) of the second gas conveying pipe (24) is fixedly connected with a first gas conveying pipe (23) communicated therewith; Wherein, the lower surface of the first gas conveying pipe (23) is fixedly connected with an L-shaped fixed plate (35), the L-shaped fixed plate (35) is fixedly connected with the protection box (9), and the front surface of the first gas conveying pipe (23) is fixedly connected with a plurality of third gas conveying pipes (36) communicated therewith; Wherein, a plurality of third gas conveying pipes (36) penetrate the inside of the discharge box (10), and a plurality of third gas conveying pipes (36) are in close contact with the upper surface of the inclined plate (29); The lower surface of the tapered connecting box (17) is fixedly connected with a material conveying pipe (18) communicated therewith, and the front surface of the material conveying pipe (18) is rotatably connected with a second connecting shaft (16); Wherein, the rear end of the second connecting shaft (16) rotatably penetrates the inner wall of the material conveying pipe (18), and the outer wall of the second connecting shaft (16) is fixedly sleeved with a spiral blade (38); Wherein, the outer wall of the front end of the second connecting shaft (16) is fixedly sleeved with a third belt pulley (15), and the third belt pulley (15) and the second belt pulley (14) located on the front side are connected together through a second belt transmission.

2. A lithium spodumene production coarse particle suspension preheater according to claim 1, characterized in that: The front surface of the screening bucket (32) is fixedly connected with a first connecting shaft (13), and the front end of the first connecting shaft (13) rotatably penetrates the front surface of the protection box (9); Wherein, the outer wall of the first connecting shaft (13) is fixedly sleeved with a first belt pulley (12), the rear surface of the screening bucket (32) is fixedly sleeved with a second sealing bearing (33), and the second sealing bearing (33) is communicated with the screening bucket (32).

3. A lithium spodumene production coarse particle suspension preheater according to claim 2, characterized in that: The inner wall of the second sealing bearing (33) is fixedly sleeved with a conveying pipe (20), the rear end of the conveying pipe (20) penetrates through the rear surface of the protection box (9), and the rear end of the conveying pipe (20) is fixedly connected with a connecting pipe (19) in communication therewith.

4. A lithium spodumene production coarse particle suspension preheater according to claim 3, characterized in that: The left and right inner walls of the protection box (9) are fixedly connected with two material guide plates (34), the opposite ends of the two material guide plates (34) are fixedly connected in an inclined manner on the bottom wall of the protection box (9), and the upper surface of the protection box (9) is provided with a protection door; The lower surface of the protection door is fixedly connected with a concave plate (26), and a plurality of hard bristles (27) are fixedly connected in the concave plate (26); The upper surface of the top plate (8) is fixedly connected with a servo motor (7), the output end of the servo motor (7) is fixedly connected with a third connecting shaft (31), and the outer wall of the third connecting shaft (31) is fixedly sleeved with two second belt pulleys (14). The second belt pulley (14) on the displacement rear side is connected together with the first belt pulley (12) through a first belt.

5. A lithium spodumene production coarse particle suspension preheater according to claim 1, characterized in that: The preheater assembly comprises a fixed plate (5), an air pipe (1), a connecting hose (2), a reaction cylinder (6) and an air cylinder (22), a plurality of reaction cylinders (6) are arranged in a staggered manner on the support base (3), and each adjacent two reaction cylinders (6) are connected and communicated with an air cylinder (22) in common. The air cylinder (22) is connected and communicated with the discharge pipe at the bottom of the reaction cylinder above, the upper air cylinder (22) is connected with the discharge pipe in communication, the lower reaction cylinder (6) is connected with the connecting hose (2) in communication, and the lower adjacent two reaction cylinders (6) are connected and communicated with the air pipe (1) in common.

6. A lithium spodumene production coarse particle suspension preheater according to claim 5, characterized in that: The outer wall of each of the plurality of reaction cylinders (6) is fixedly connected with a fixed plate (5), the plurality of fixed plates (5) are fixedly connected with corresponding support rods (4) respectively, the rear end of the material conveying pipe (18) is fixedly connected with the air cylinder (22) corresponding thereto, and the material conveying pipe (18) is communicated with the air cylinder (22) connected thereto.

7. A lithium spodumene production coarse particle suspension preheater according to claim 6, characterized in that: The inner wall of the reaction cylinder (6) is fixedly connected with a rectangular fixed plate (21), the rectangular fixed plate (21) is fixedly sleeved with a first sealing bearing (30), the inner wall of the first sealing bearing (30) is fixedly sleeved with a fourth connecting shaft (43), and the lower end of the fourth connecting shaft (43) is fixedly connected with a fan (40). The outer wall of the upper end of the fourth connecting shaft (43) is fixedly connected with two connecting rods (41) on the front and rear sides, the ends of the two corresponding connecting rods (41) away from the fourth connecting shaft (43) are fixedly connected with arc-shaped scrapers (42), and the arc-shaped parts of the two front and rear corresponding arc-shaped scrapers (42) are in close contact with the inner wall of the reaction cylinder (6), The structures of the plurality of reaction cylinders (6) are completely same.

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