Coarse particle suspension preheater for spodumene production

Abstract

The invention discloses a coarse particle suspension preheater for spodumene production, and relates to the technical field of suspension preheaters. The coarse particle suspension preheater for spodumene production comprises a supporting base, four supporting rods are fixedly connected to the upper surface of the supporting base, a top plate and a preheater assembly are fixedly connected to the upper surfaces of the four supporting rods, and a first connecting shaft drives a screening barrel to rotate rapidly; the screening barrel can drive a plurality of coarse particles to rotate during rotation and screen the coarse particles through a plurality of screening holes, centrifugal force is adopted for screening the coarse particles, unqualified coarse particles can be prevented from entering the preheater, the final production quality is improved, the screening efficiency and quality are high, and the screening effect is good. The spiral blades can drive the multiple coarse particles to move backwards along the inner wall of the conveying pipe in the rotating process, by arranging the spiral blades, blocking of the coarse particles in the feeding process can be prevented, even feeding can be achieved, and the stability in the feeding process is improved.

Description

Technical Field

[0001] The invention relates to the technical field of suspension preheaters, in particular to a coarse particle suspension preheater for producing spodumene. Background Art

[0002] The suspension preheater uses the hot air flow discharged from the rotary kiln or decomposition furnace to heat the raw material, so as to achieve the effect of preheating and decomposing part of the carbonate. In the production of spodumene, the coarse particles need to be preheated by using a suspension preheater.

[0003] In order to improve the production quality of spodumene and prevent blockage inside the suspension preheater, it is necessary to screen the coarse particles before they enter the suspension preheater to ensure that there are not too large coarse particles entering the suspension preheater to cause blockage inside the suspension preheater. However, the existing suspension preheater lacks a screening component, 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 of the invention

[0004] The purpose of the present invention is to solve at least one of the technical problems existing in the prior art and to provide a coarse particle suspension preheater for producing spodumene, which can solve the problem that the existing suspension preheater lacks a screening component and needs to use other machines to screen the coarse particles, then collect the coarse particles and transport them to the side of the suspension preheater, thereby increasing the production steps and reducing the production efficiency.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solutions: a coarse particle suspension preheater for spodumene production, comprising a support base, four support rods are fixedly connected to the upper surface of the support base, a top plate is fixedly connected to the upper surfaces of the four support rods, and a preheater assembly is arranged on the four support rods; The screening and feeding assembly comprises a discharge box, the upper surface of which is fixedly connected with a protection box which is in communication with the discharge box, and the front and rear inner walls of the protection box are both provided with arc-shaped slide grooves.

[0006] Among them, the inner walls of the two arc-shaped slide grooves are slidably connected with two arc-shaped sliders, and the opposite surfaces of the two upper and lower corresponding arc-shaped sliders are fixedly connected with a screening barrel; Among them, the surface of the screening barrel begins to have a plurality of screening holes connected thereto.

[0007] 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 rotates and passes through the front surface of the protection box; Wherein, a first pulley is fixedly sleeved on the outer wall of the first connecting shaft, a second sealed bearing is fixedly sleeved on the rear surface of the screening barrel, and the second sealed bearing is communicated with the screening barrel.

[0008] Preferably, a conveying pipe is fixedly sleeved on the inner wall of the second sealing bearing, the rear end of the conveying pipe passes through the rear surface of the protection box, the rear end of the conveying pipe is fixedly connected to a connecting pipe communicating therewith, and the lower surface of the conveying pipe is fixedly connected to a rectangular discharge box communicating therewith.

[0009] Preferably, two material guide plates are fixedly connected to the left and right inner walls of the protection box, and the opposite ends of the two material guide plates are fixedly connected to the bottom wall of the protection box in an inclined shape, and a protection door is provided on the upper surface of the protection box; Wherein, a concave plate is fixedly connected to the lower surface of the protective door, and a plurality of hard bristles are fixedly connected to the concave portion of the concave plate; The upper surface of the top plate is fixedly connected to a servo motor, the output end of the servo motor is fixedly connected to a third connecting shaft, and the outer wall of the third connecting shaft is fixedly sleeved with two second pulleys; Wherein, the second pulley on the rear side of the displacement is connected with the first pulley through the first belt transmission.

[0010] Preferably, a rectangular groove communicating with the discharge box is provided on the front surface of the discharge box, and an inclined plate is fixedly connected to the inner wall of the discharge box; The front end of the inclined plate penetrates through the inner wall of the rectangular groove, and the lower surface of the inclined plate is fixedly connected with a conical connection box communicated with the inclined plate.

[0011] Preferably, an air pump is fixedly connected to the upper surface of the top plate, an output end of the air pump is fixedly connected to a second air pipe, and an end of the second air pipe away from the air pump is fixedly connected to a first air pipe in communication therewith; The lower surface of the first gas pipeline is fixedly connected with an L-shaped fixing plate, the L-shaped fixing plate is fixedly connected with the protection box, and the front surface of the first gas pipeline is fixedly connected with a plurality of third gas pipelines communicating with the first gas pipeline; Among them, multiple third air pipes penetrate the interior of the inlet and outlet box, and the multiple third air pipes are all in contact with the upper surface of the inclined plate.

[0012] Preferably, the lower surface of the conical connection box is fixedly connected with a material delivery pipe communicating therewith, and the front surface of the material delivery pipe is rotatably connected with a second connection shaft; The rear end of the second connecting shaft rotates and penetrates the inner wall of the feeding pipe, and the outer wall of the second connecting shaft is fixedly sleeved with a spiral blade; Among them, a third pulley is fixedly sleeved on the outer wall of the front end of the second connecting shaft, and the third pulley is connected to the second pulley located at the front side through the second belt transmission.

[0013] Preferably, the preheater assembly comprises a fixing plate, a connecting hose, a vent pipe, a connecting hose, a reaction cylinder, and a vent cylinder. A plurality of reaction cylinders are arranged in a staggered manner on the supporting base, and every two adjacent reaction cylinders are connected to each other and communicated with a vent cylinder. Among them, the ventilation cylinder is connected and communicated with the discharge pipe at the bottom of the upper reaction cylinder, the upper ventilation cylinder is connected to the discharge cylinder communicated with it, the lower reaction cylinder is connected to the connecting hose communicated with it, and the two adjacent reaction cylinders at the lower part are commonly connected to the ventilation pipe communicated with them.

[0014] Preferably, the outer walls of the plurality of reaction cylinders are fixedly connected with fixing plates, the plurality of fixing plates are respectively 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 in communication with the ventilation cylinder connected thereto.

[0015] Preferably, a rectangular fixing plate is fixedly connected to the inner wall of the reaction cylinder, a first sealing bearing is fixedly sleeved on the rectangular fixing plate, a third connecting shaft is fixedly sleeved on the inner wall of the first sealing bearing, and a fan is fixedly connected to the lower end of the third connecting shaft; Among them, two connecting rods are fixedly connected to the front and rear sides of the outer wall of the upper end of the third connecting shaft, and the two upper corresponding connecting rods are fixedly connected to an arc scraper at one end away from the third connecting shaft, and the arc parts of the two front and rear corresponding arc scrapers are in contact with the inner wall of the reaction cylinder.

[0016] Among them, the structures on multiple reaction tubes are completely the same.

[0017] Compared with the prior art, the present invention has the following beneficial effects: , the spodumene produces a 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 pulleys to rotate, the second pulley located at the rear side drives the first connecting shaft to rotate through the first belt and the first pulley, the first connecting shaft drives the screening barrel to rotate rapidly, the screening barrel will drive multiple coarse particles to rotate during rotation and screen the coarse particles through multiple screening holes, and the coarse particles are screened by using centrifugal force, which can not only prevent unqualified coarse particles from entering the interior of the preheater and improve the final production quality, but also has high screening efficiency and quality, the spiral blades will drive multiple coarse particles to move backward along the inner wall of the feed pipe during rotation, and the spiral blades can prevent the coarse particles from being blocked during feeding, and can also achieve uniform feeding and improve stability during feeding.

[0018] , In the spodumene production coarse particle suspension preheater, the rising hot air flow will drive the fan to rotate, the fan will drive the third connecting shaft to rotate, the third connecting shaft will drive two arc scrapers to rotate through four connecting rods, and the two arc scrapers will clean the inner wall of the reaction tube during rotation, thereby improving the practicability of the reaction tube.

[0019] , the spodumene produces coarse particle suspension preheater and starts the external industrial vacuum cleaner. The external industrial vacuum cleaner sucks the coarse particles accumulated at the bottom of the screening barrel into the interior of the industrial vacuum cleaner through the connecting pipe, the conveying pipe, and the rectangular discharge box, thereby completing the cleaning of the screening barrel and improving the practicability of the screening barrel during use.

[0020] , the spodumene production coarse particle suspension preheater, the air pump inputs the generated gas into the interior of the first gas pipe through the second gas pipe, and discharges it through multiple third gas pipes. The gas flows along the inclined surface of the inclined plate. During the flow of gas, it will assist the coarse particles that fall onto the inclined plate to move, prevent the coarse particles from accumulating on the inclined plate, and improve the stability of the coarse particles during transportation.

[0021] , the spodumene production coarse particle suspension preheater, the screening barrel will continuously contact with multiple hard bristles during rotation, and the multiple hard bristles will enter into the multiple screening holes to clean the inner walls of the screening holes, to prevent particles from getting stuck on the inner walls of the screening holes and causing blockage, thereby improving the sustainability of the screening barrel during use. The screening barrel will drive four arc-shaped slide blocks to rotate through two arc-shaped chutes during rotation, and the four arc-shaped slide blocks and the two arc-shaped chutes will assist the rotation of the screening barrel, thereby improving the stability of the screening barrel during continuous work. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below in conjunction with the accompanying drawings and embodiments: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the top plate surface of the present invention; Figure 3 It is a schematic diagram of the surface of the screening barrel of the present invention; Figure 4 This is a schematic diagram of the connection between the L-shaped fixing plate and the discharge box of the present invention; Figure 5 It is a schematic top view of the upper surface of the discharge box of the present invention; Figure 6 It is a bottom view schematic diagram of the lower surface of the inclined plate of the present invention; Figure 7 This is a schematic diagram of the connection between the second connecting shaft and the spiral blade of the present invention; Figure 8 This is a schematic top view of the interior of the protective box of the present invention; Fig. 9 This is a schematic diagram of the interior of the reaction tube of the present invention viewed from above; Fig.10 for Fig. 9 Enlarged schematic diagram at point A in the middle.

[0023] Figure numerals: 1, vent pipe; 2, connecting hose; 3, support base; 4, support rod; 5, fixing plate; 6, reaction cylinder; 7, servo motor; 8, top plate; 9, protection box; 10, discharge box; 11, rectangular groove; 12, first pulley; 13, first connecting shaft; 14, second pulley; 15, third pulley; 16, second connecting shaft; 17, conical connecting box; 18, conveying pipe; 19, connecting pipe; 20, conveying pipe; 21, rectangular fixing plate; 22, vent cylinder; 23 , the first air pipe; 24, the second air pipe; 25, the air pump; 26, the concave plate; 27, the hard bristles; 28, the arc-shaped slider; 29, the inclined plate; 30, the first sealed bearing; 31, the third connecting shaft; 32, the screening barrel; 33, the second sealed bearing; 34, the guide plate; 35, the L-shaped fixing plate; 36, the third air pipe; 37, the arc-shaped slide groove; 38, the spiral blade; 39, the rectangular discharge box; 40, the fan; 41, the connecting rod; 42, the arc-shaped scraper; 43, the third connecting shaft. DETAILED DESCRIPTION

[0024] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0025] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In the description of the present invention, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0027] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0028] See also Figure 1-10The present invention provides a technical solution: a coarse particle suspension preheater for producing spodumene, comprising a support base 3, four support rods 4 are fixedly connected to the upper surface of the support base 3, a top plate 8 is fixedly connected to the upper surfaces of the four support rods 4, and a preheater assembly is arranged on the four support rods 4.

[0029] The screening and feeding assembly comprises a discharge box 10 , the upper surface of which is fixedly connected with a protection box 9 which is in communication therewith, and the front and rear inner walls of the protection box 9 are both provided with arc-shaped slide grooves 37 .

[0030] The inner walls of the two arc-shaped slide grooves 37 are slidably connected to two arc-shaped sliders 28, and the opposite surfaces of the two upper and lower corresponding arc-shaped sliders 28 are fixedly connected to the screening barrel 32; The surface of the screening barrel 32 begins to have a plurality of screening holes communicating therewith.

[0031] Furthermore, the front surface of the screening barrel 32 is fixedly connected with a first connecting shaft 13, and the front end of the first connecting shaft 13 rotates and penetrates the front surface of the protection box 9; The first pulley 12 is fixedly sleeved on the outer wall of the first connecting shaft 13 , and the second sealed bearing 33 is fixedly sleeved on the rear surface of the screening barrel 32 . The second sealed bearing 33 is in communication with the screening barrel 32 .

[0032] Furthermore, a conveying pipe 20 is fixedly sleeved on the inner wall of the second sealing bearing 33, and the rear end of the conveying pipe 20 passes through the rear surface of the protective box 9. The rear end of the conveying pipe 20 is fixedly connected to a connecting pipe 19 communicated therewith, and the lower surface of the conveying pipe 20 is fixedly connected to a rectangular discharge box 39 communicated therewith.

[0033] Furthermore, two guide plates 34 are fixedly connected to the left and right inner walls of the protection box 9, and the opposite ends of the two guide plates 34 are fixedly connected to the bottom wall of the protection box 9 in an inclined shape, and a protection door is provided on the upper surface of the protection box 9; The lower surface of the protective door is fixedly connected with a concave plate 26, and the concave part of the concave plate 26 is fixedly connected with a plurality of hard bristles 27; The upper surface of the top plate 8 is fixedly connected to the servo motor 7, the output end of the servo motor 7 is fixedly connected to the third connecting shaft 31, and the outer wall of the third connecting shaft 31 is fixedly sleeved with two second pulleys 14; Wherein, the second pulley 14 at the rear side of the displacement is connected with the first pulley 12 through the first belt transmission; When screening the coarse particles, first, the external connecting pipe is fixedly connected to the connecting pipe 19, and then the coarse particles can be transported to the inside 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 pneumatic conveying. Then, the servo motor 7 is started, and the servo motor 7 drives the third connecting shaft 31 to rotate, and the third connecting shaft 31 drives the two second pulleys 14 to rotate. The second pulley 14 located at the rear side drives the first connecting shaft 13 to rotate through the first belt and the first pulley 12, and the first connecting shaft 13 drives the screening barrel 32 to rotate rapidly. The screening barrel 32 will drive multiple coarse particles to rotate during rotation and screen the coarse particles through multiple screening holes. By using centrifugal force Screening the coarse particles can not only prevent unqualified coarse particles from entering the interior of the preheater and improve the final production quality, but also has high screening efficiency and quality, which can meet the production needs. At the same time, the screening barrel 32 will continuously contact multiple hard bristles 27 during rotation, and multiple hard bristles 27 will enter the interior of multiple screening holes to clean the inner walls of the screening holes, preventing particles from getting stuck on the inner walls of the screening holes and causing blockage, thereby improving the sustainability of the screening barrel 32 during use. At the same time, the screening barrel 32 will drive the four arc-shaped sliders 28 to rotate through the two arc-shaped slide grooves 37 during rotation. The four arc-shaped sliders 28 and the two arc-shaped slide grooves 37 assist the rotation of the screening barrel 32, thereby improving the stability of the screening barrel 32 during continuous work.

[0034] Furthermore, a rectangular groove 11 communicating with the discharge box 10 is provided on the front surface thereof, and an inclined plate 29 is fixedly connected to the inner wall of the discharge box 10; 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 conical connection box 17 communicating therewith.

[0035] Furthermore, an air pump 25 is fixedly connected to the upper surface of the top plate 8, an output end of the air pump 25 is fixedly connected to a second air delivery pipe 24, and an end of the second air delivery pipe 24 away from the air pump 25 is fixedly connected to a first air delivery pipe 23 in communication therewith; The lower surface of the first gas pipe 23 is fixedly connected with an L-shaped fixing plate 35, the L-shaped fixing plate 35 is fixedly connected with the protection box 9, and the front surface of the first gas pipe 23 is fixedly connected with a plurality of third gas pipes 36 communicating therewith; Among them, a plurality of third air delivery pipes 36 penetrate the interior of the inlet and outlet box 10, and the plurality of third air delivery pipes 36 are all in contact with the upper surface of the inclined plate 29; Among them, qualified coarse particles will fall onto the surfaces of the two guide plates 34, and fall onto the upper surface of the inclined plate 29 along the inclined surfaces of the two guide plates 34, and then the air pump 25 will be started. The output power of the air pump 25 is not easy to be too large, and the actual output power can be obtained through multiple tests according to the on-site conditions. The air pump 25 will input the generated gas into the interior of the first air pipe 23 through the second air pipe 24, and discharge it through multiple third air pipes 36. The gas flows along the inclined surface of the inclined plate 29. During the flow of gas, the coarse particles that fall on the inclined plate 29 will be assisted to move, thereby preventing the coarse particles from accumulating on the inclined plate 29 and improving the stability of the coarse particles during transportation.

[0036] Furthermore, a material delivery pipe 18 communicating therewith is fixedly connected to the lower surface of the conical connection box 17, and a second connection shaft 16 is rotatably connected to the front surface of the material delivery pipe 18; The rear end of the second connecting shaft 16 rotates and penetrates 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; 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 is connected to the second belt pulley 14 located at the front side through a second belt transmission.

[0037] Among them, the third connecting shaft 31 rotates the third pulley 15 through the second pulley 14 and the second belt located on the front side, and the third pulley 15 drives the second connecting shaft 16 and the spiral blade 38 to rotate. 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 will enter the interior of the feed pipe 18. The spiral blade 38 will drive multiple coarse particles to move backward along the inner wall of the feed pipe 18 during rotation. By setting the spiral blade 38, it is possible to prevent the coarse particles from being blocked during feeding, and it is also possible to achieve uniform feeding and improve the stability during feeding.

[0038] Further, the preheater assembly includes a fixing plate 5, a connecting hose 2, a vent pipe 1, a connecting hose 2, a reaction cylinder 6, and a vent cylinder 22. A plurality of reaction cylinders 6 are arranged on the supporting base 3 in a staggered manner, and every two adjacent reaction cylinders 6 are connected to each other and communicated with the vent cylinder 22. Among them, the ventilation cylinder 22 is connected and communicated with the discharge pipe at the bottom of the reaction cylinder located above, the upper ventilation cylinder 22 is connected to the discharge cylinder communicated with it, the lower reaction cylinder 6 is connected to the connecting hose 2 communicated with it, and the two adjacent reaction cylinders 6 at the lower part are commonly connected to the ventilation pipe 1 communicated with them.

[0039] Furthermore, the outer walls of the multiple reaction cylinders 6 are fixedly connected with fixed plates 5, and the multiple fixed plates 5 are respectively fixedly connected to the corresponding support rods 4. The rear end of the feed pipe 18 is fixedly connected to the corresponding ventilation cylinder 22, and the feed pipe 18 is communicated with the ventilation cylinder 22 connected thereto.

[0040] Furthermore, a rectangular fixing plate 21 is fixedly connected to the inner wall of the reaction cylinder 6, a first sealing bearing 30 is fixedly sleeved on the rectangular fixing plate 21, a third connecting shaft 43 is fixedly sleeved on the inner wall of the first sealing bearing 30, and a fan 40 is fixedly connected to the lower end of the third connecting shaft 43; Among them, two connecting rods 41 are fixedly connected to the front and rear sides of the outer wall of the upper end of the third connecting shaft 43, and the two upper corresponding connecting rods 41 are fixedly connected to an arc scraper 42 at one end away from the third connecting shaft 43, and the arc parts of the two front and rear corresponding arc scrapers 42 are in contact with the inner wall of the reaction tube 6.

[0041] The structures of the multiple reaction tubes 6 are completely the same.

[0042] When in use, the operator first connects the connecting hose 2 and the ventilation pipe 1 to the rotary kiln. When the device is in operation, the hot air flow generated in the rotary kiln flows into the lower reaction tube 6 through the ventilation pipe 1, and is then transported from bottom to top by the ventilation pipe 22 to the remaining reaction tubes 6 in sequence. At the same time, the coarse particles will enter the ventilation pipe 22 connected thereto through the feeding pipe 18, and the coarse particles in the upper ventilation pipe 22 will be brought into the upper reaction tube 6 through the rising flow of the hot air flow. The coarse particles guided out of the upper reaction tube 6 enter the lower ventilation pipe 22 and are again brought into the adjacent reaction tube 6 through the hot air flow. In this way, the coarse particles enter the remaining reaction tubes 6 in sequence from top to bottom and exchange heat with the internal hot air, 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 22. The hose 2 is discharged into the rotary kiln for continued heating. At the same time, the rising hot air flow will drive the fan 40 to rotate, and the fan 40 will drive the third connecting shaft 43 to rotate. The third connecting shaft 43 drives the two arc scrapers 42 to rotate through four connecting rods 41. The two arc scrapers 42 will clean the inner wall of the reaction tube 6 during rotation, thereby improving the practicality of the reaction tube 6. When it is necessary to clean the unqualified raw materials inside the screening barrel 32, first connect the connecting pipe 19 to the external dust suction pipe, and then start the external industrial vacuum cleaner. The external industrial vacuum cleaner will suck the coarse particles accumulated at the bottom of the screening barrel 32 into the interior of the industrial vacuum cleaner 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 practicality of the screening barrel 32 when in use.

[0043] Working principle: When screening coarse particles, first fix the external connecting pipe to the connecting pipe 19, and then use pneumatic conveying to transport the coarse particles 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, and then start the servo motor 7, 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 located 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 rapidly, the screening barrel 32 will drive multiple coarse particles to rotate during rotation and screen the coarse particles through multiple screening holes, by using centrifugal The force is used to screen the coarse particles, which can not only prevent unqualified coarse particles from entering the interior of the preheater and improve the final production quality, but also has high screening efficiency and quality, which can meet the production needs. At the same time, the screening barrel 32 will continuously contact with multiple hard bristles 27 during rotation, and multiple hard bristles 27 will enter the interior of multiple screening holes to clean the inner walls of the screening holes, thereby preventing particles from getting stuck on the inner walls of the screening holes and causing blockage, thereby improving the sustainability of the screening barrel 32 during use. At the same time, the screening barrel 32 will drive the four arc-shaped sliders 28 to rotate through the two arc-shaped slide grooves 37 during rotation, and the four arc-shaped sliders 28 and the two arc-shaped slide grooves 37 play an auxiliary role in the rotation of the screening barrel 32, thereby improving the stability of the screening barrel 32 during continuous work.

[0044] Furthermore, 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 through multiple tests according to the on-site conditions. The air pump 25 inputs the generated gas into the interior of the first air pipe 23 through the second air pipe 24, and discharges it through multiple third air pipes 36. The gas flows along the inclined surface of the inclined plate 29. During the flow of gas, the coarse particles that fall on the inclined plate 29 are assisted to move, thereby preventing the coarse particles from accumulating on the inclined plate 29 and improving the stability of the coarse particles during transportation.

[0045] Furthermore, the third connecting shaft 31 rotates the third pulley 15 through the second pulley 14 and the second belt located on the front side, and the third pulley 15 drives the second connecting shaft 16 and the spiral blade 38 to rotate, and 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, and the coarse particles falling into the interior of the conical connecting box 17 will enter the interior of the feed pipe 18, and the spiral blade 38 will drive multiple coarse particles to move backward along the inner wall of the feed pipe 18 during rotation. By setting the spiral blade 38, it is possible to prevent the coarse particles from being blocked during feeding, and to achieve uniform feeding, thereby improving the stability during feeding.

[0046] Furthermore, when the device is in operation, the hot air flow generated in the rotary kiln flows into the lower reaction tube 6 through the vent pipe 1, and is then transported from bottom to top by the vent pipe 22 to the remaining reaction tubes 6 in sequence. At the same time, the coarse particles will enter the interior of the vent pipe 22 connected thereto through the feed pipe 18, and the coarse particles in the upper vent pipe 22 will be brought into the upper reaction tube 6 by the upward flow of the hot air flow, and the coarse particles guided out of the upper reaction tube 6 will enter the lower vent pipe 22, and will be brought into the adjacent reaction tube 6 by the hot air flow again, and in this way, the coarse particles will enter the remaining reaction tubes 6 in sequence from top to bottom, and exchange heat with the internal hot air, so as to realize the preheating operation. After the preheating of the coarse particles is completed, the coarse particles will be discharged from the connecting hose 2 into the rotary kiln for further heating. Heat, and the rising hot air flow will drive the fan 40 to rotate, and the fan 40 will drive the third connecting shaft 43 to rotate. The third connecting shaft 43 drives the two arc scrapers 42 to rotate through four connecting rods 41. The two arc scrapers 42 will clean the inner wall of the reaction tube 6 during rotation, thereby improving the practicality of the reaction tube 6. When it is necessary to clean the unqualified raw materials inside the screening barrel 32, first connect the connecting pipe 19 to the external dust suction pipe, and then start the external industrial vacuum cleaner. The external industrial vacuum cleaner will suck the coarse particles accumulated at the bottom of the screening barrel 32 into the interior of the industrial vacuum cleaner 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 practicality of the screening barrel 32 when in use.

[0047] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A coarse particle suspension preheater for producing spodumene, characterized in that: include: A support base (3), wherein four support rods (4) are fixedly connected to the upper surface of the support base (3), and a top plate (8) is fixedly connected to the upper surfaces of the four support rods (4); A preheater assembly, the preheater assembly is arranged on four support rods (4), a screening and feeding assembly, the screening and feeding assembly comprises a discharge box (10), the upper surface of the discharge box (10) is fixedly connected to a protection box (9) which is in communication with the discharge box (10), and the front and rear inner walls of the protection box (9) are both provided with arc-shaped slide grooves (37), The inner walls of the two arc-shaped slide grooves (37) are slidably connected to two arc-shaped slide blocks (28), and the opposite surfaces of the two upper and lower corresponding arc-shaped slide blocks (28) are fixedly connected to the screening barrel (32); The surface of the screening barrel (32) begins to have a plurality of screening holes communicating therewith.

2. A coarse particle suspension preheater for producing spodumene according to claim 1, characterized in that: A first connecting shaft (13) is fixedly connected to the front surface of the screening barrel (32), and the front end of the first connecting shaft (13) rotates to penetrate the front surface of the protection box (9); The first pulley (12) is fixedly sleeved on the outer wall of the first connecting shaft (13), the second sealed bearing (33) is fixedly sleeved on the rear surface of the screening barrel (32), and the second sealed bearing (33) is in communication with the screening barrel (32).

3. A coarse particle suspension preheater for producing spodumene according to claim 2, characterized in that: A conveying pipe (20) is fixedly sleeved on the inner wall of the second sealed bearing (33), the rear end of the conveying pipe (20) passes through the rear surface of the protection box (9), the rear end of the conveying pipe (20) is fixedly connected to a connecting pipe (19) in communication with the conveying pipe (20), and the lower surface of the conveying pipe (20) is fixedly connected to a rectangular discharge box (39) in communication with the conveying pipe (20).

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

5. A coarse particle suspension preheater for producing spodumene according to claim 1, characterized in that: The front surface of the discharge box (10) is provided with a rectangular groove (11) communicating 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 through the inner wall of the rectangular groove (11), and the lower surface of the inclined plate (29) is fixedly connected to a conical connection box (17) that is in communication with the inclined plate (29).

6. A coarse particle suspension preheater for producing spodumene according to claim 1, characterized in that: An air pump (25) is fixedly connected to the upper surface of the top plate (8); an output end of the air pump (25) is fixedly connected to a second air delivery pipe (24); an end of the second air delivery pipe (24) away from the air pump (25) is fixedly connected to a first air delivery pipe (23) in communication with the second air delivery pipe (24); The lower surface of the first gas pipeline (23) is fixedly connected to an L-shaped fixing plate (35), the L-shaped fixing plate (35) is fixedly connected to the protection box (9), and the front surface of the first gas pipeline (23) is fixedly connected to a plurality of third gas pipelines (36) in communication therewith; The plurality of third air delivery pipes (36) penetrate the interior of the inlet and outlet box (10), and the plurality of third air delivery pipes (36) are all in contact with the upper surface of the inclined plate (29).

7. A coarse particle suspension preheater for producing spodumene according to claim 5, characterized in that: The lower surface of the conical connection box (17) is fixedly connected to a material delivery pipe (18) communicating therewith, and the front surface of the material delivery pipe (18) is rotatably connected to a second connection shaft (16); The rear end of the second connecting shaft (16) rotates to penetrate the inner wall of the feed pipe (18), and the outer wall of the second connecting shaft (16) is fixedly sleeved with a spiral blade (38); A third belt pulley (15) is fixedly sleeved on the outer wall of the front end of the second connecting shaft (16), and the third belt pulley (15) is connected to the second belt pulley (14) located at the front side through a second belt transmission.

8. A coarse particle suspension preheater for producing spodumene according to claim 1, characterized in that: The preheater assembly comprises a fixing plate (5), a connecting hose (2), a vent pipe (1), a connecting hose (2), a reaction cylinder (6), and a vent cylinder (22); a plurality of reaction cylinders (6) are arranged in a staggered manner on the support base (3), and every two adjacent reaction cylinders (6) are connected to each other and communicate with the vent cylinder (22); The vent cylinder (22) is connected to and communicates with a feed pipe at the bottom of the upper reaction cylinder; the upper vent cylinder (22) is connected to a feed pipe communicated with it; the lower reaction cylinder (6) is connected to a connecting hose (2) communicated with it; and two adjacent reaction cylinders (6) at the lower part are connected to a vent pipe (1) communicated with them.

9. A coarse particle suspension preheater for producing spodumene according to claim 8, characterized in that: The outer walls of the plurality of reaction cylinders (6) are fixedly connected to fixing plates (5), the plurality of fixing plates (5) are respectively fixedly connected to corresponding support rods (4), the rear end of the feed pipe (18) is fixedly connected to the corresponding ventilation cylinder (22), and the feed pipe (18) is in communication with the ventilation cylinder (22) connected thereto.

10. A coarse particle suspension preheater for producing spodumene according to claim 1, characterized in that: The inner wall of the reaction cylinder (6) is fixedly connected to a rectangular fixing plate (21), a first sealing bearing (30) is fixedly sleeved on the rectangular fixing plate (21), a third connecting shaft (43) is fixedly sleeved on the inner wall of the first sealing bearing (30), and a fan (40) is fixedly connected to the lower end of the third connecting shaft (43); Two connecting rods (41) are fixedly connected to the front and rear sides of the outer wall of the upper end of the third connecting shaft (43); one end of the two corresponding connecting rods (41) away from the third connecting shaft (43) is fixedly connected to an arc-shaped scraper (42); the arc-shaped parts of the two corresponding arc-shaped scrapers (42) are in contact with the inner wall of the reaction tube (6). The structures on the multiple reaction cylinders (6) are completely the same.

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