A precursor material continuous processable drying apparatus

Abstract

The present application relates to the field of precursor material drying, and provides a drying device for continuous processing of precursor material, comprising: a mounting table; a cover fixedly arranged on one side of the upper portion of the mounting table; a discharge port arranged on the upper portion of the cover; an air guide volute fixedly connected to the lower end portion of the cover, with an air inlet pipe arranged at the volute tongue; and a shunt vane arranged in the air guide volute and composed of two upper and lower side plates and a plurality of arc-shaped vanes evenly and separately arranged in the side plates. The precursor material is sprayed into the drying device in mist form by the spraying mechanism, so that materials with different moisture contents can be continuously processed by continuous feeding, effectively reducing the agglomeration and drying scale formation of the materials in the drying area of the device. Meanwhile, the heat recovery pipe is used to recycle the heat discharged during drying, thereby effectively controlling the product particle size and particle size distribution, and ensuring the uniformity of drying.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of drying equipment, in particular to a drying equipment capable of continuous processing of precursor materials. BACKGROUND

[0002] The precursor material is a raw material for preparing ternary materials, which is a composite of nickel, cobalt and manganese. The precursor material usually needs to be specially treated to obtain the required physical and chemical properties. Drying is a key step in these processes, which removes water from the material to facilitate better flowability and mixability of the precursor material in subsequent processing. At the same time, the particle size and distribution in the material can be adjusted during drying to improve the density and uniformity of doped elements in the material. In the production of ternary material precursors, the drying process determines the moisture content of the finished precursor product and has a certain influence on the crystal structure.

[0003] In the production of ultra-fine powder of the precursor, after filtration and washing process, the moisture content of the obtained filter cake is about 20%, and the water content in the precursor material during drying is required to be reduced from about 20% to below 1%. The material is loose during drying, but the flowability is not poor, the material is uniformly heated, and the quality impact of high temperature and long drying time and oxidation reaction of the precursor material during drying on the material is avoided. Whether the drying equipment is correctly selected directly relates to the quality of the product.

[0004] The commonly used precursor drying equipment at present includes hot air / vacuum oven, tray dryer, flash dryer, etc. The hot air / vacuum oven treatment equipment is superior to other drying treatment products in product quality indicators such as sphericity, surface regularity, product consistency and fine powder amount to a certain extent. Considering that the oven has wide applicability, but the drying time is long, the thermal efficiency is lower than that of other drying equipment, and the degree of automation is low, it cannot be applied to mass production; the conventional tray dryer can be continuously operated, the precursor material enters the drying equipment, the material is dispersed on the surface of the drying tray in multiple layers inside, the wet material on the drying tray is heated by heat conduction, and the material is continuously discharged by the internal rotating rake equipment, which is suitable for mass and continuous production. Similar to the double-paddle tray dryer, but this type of equipment is not suitable for drying of high-moisture paste-shaped and filter cake-shaped precursor filter cakes, and needs to be used in combination with a centrifugal equipment, which increases the processing procedures and maintenance costs. Of course, the use of flash dryer can solve the problem of high moisture content of the material, but this type of equipment also faces new problems, i.e. the power blower for conveying the material in the equipment works, which causes a large amount of heat to be dissipated, and the gas heating machine works continuously at full load, resulting in serious energy consumption.

[0005] In summary, the existing mainstream precursor material drying equipment has various defects when used, and cannot meet the diversified production needs.

[0006] SUMMARY

[0007] The present application aims to solve the problems of various defects existing in the prior drying equipment, which cannot meet the various needs in processing. Therefore, the present application provides a precursor material continuous processing drying equipment which can be applied to drying processing of materials with different moisture contents and has relatively low energy consumption.

[0008] The technical scheme is as follows: a precursor material continuous processing drying equipment, comprising a mounting table, a cover shell fixedly arranged on one side of the upper portion of the mounting table, an upper portion of the cover shell being provided with a discharge port, an air guide volute fixedly connected to the lower end portion of the cover shell, the air guide volute being provided with an air inlet pipe at the volute tongue, a shunt vortex fan arranged in the air guide volute, the shunt vortex fan being composed of two upper and lower edge plates and a plurality of arc-shaped fan blades arranged in the edge plates at uniform intervals, a plurality of air holes being formed in the upper edge plate of the shunt vortex fan, the air holes being arranged on the upper edge plate at positions corresponding to the two arc-shaped vortex fans, a bottom disc mounted on the inner side of the shunt vortex fan, the bottom disc being provided with a recess on the upper portion, the bottom disc being consistent in height with the shunt vortex fan, the inner circle side of the shunt vortex fan being completely closed, and the shunt vortex fan and the air guide volute completely closing the lower end portion of the cover shell, a circulating fan arranged on the left lower side of the mounting table, the circulating fan being composed of a volute-type air making chamber and a motor, the volute-type air making chamber being provided with an air guide outlet protruding along the side wall, the air guide outlet being connected and communicated with the air inlet pipe of the air guide volute, a conical cylinder mounted on the mounting table away from the cover shell, the conical cylinder being hollow inside, a tangent line at the edge of the top cover of the conical cylinder being provided with a material guide pipe, the material guide pipe being communicated with the space in the upper portion of the conical cylinder, a downward spiral flow guide groove being arranged at the inlet of the material guide pipe in the conical cylinder, the conical cylinder being provided with a discharge opening at the lower portion of the cone, an inner cylinder arranged in the concentric position of the top cover of the conical cylinder, the inner cylinder being provided with a tubular passage inside, and one end of the bottom portion of the inner cylinder penetrating into the space in the upper portion of the cone of the conical cylinder, a discharge pipe mounted between the discharge port of the cover shell and the inlet of the conical cylinder, the discharge pipe connecting the space inside the cover shell and the space inside the conical cylinder, a circulating air pipe having one end communicated with the upper end of the inner cylinder and the other end communicated with the volute-type air making chamber of the fan, and a material spraying mechanism arranged on the cover shell, the material spraying mechanism being used to spray misty materials into the cover shell.

[0009] The material spraying mechanism comprises: a feeding bin fixedly installed on the outer wall of the shell away from the conical cylinder, the internal space of which is large at the top and small at the bottom, and the lower internal space is recessed towards the shell; a feeding pipe arranged on the upper part of the feeding bin and in communication with the internal space of the feeding bin, used for connecting an external material conveying pipeline; an arc-shaped cavity plate arranged at the lower part of the feeding bin and attached to the outer wall of the shell at one side, the internal cavity of which is in communication with the internal space of the feeding bin; a plurality of spray guns arranged at intervals on the arc-shaped cavity plate, the number of which is not less than three, each of which comprises a distribution pipe, an air inlet joint and a spray head, the lower end of the distribution pipe penetrating into the cavity of the arc-shaped cavity plate, and the spray heads of the spray guns penetrating into the shell, the material in the feeding bin being input into the shell through the spray guns; a plug fixedly arranged on the upper part of the distribution pipe of the spray gun; and a spacer block fixedly arranged on the upper part of the distribution pipe of the spray gun, the upper end of which being connected with the plug, and a ring-shaped gap being formed on the upper part of the distribution pipe of the spray gun.

[0010] Further comprising: an air inlet valve installed between the upper parts of the plugs, two air inlet holes for introducing the air flow of the air inlet valve being formed in each of the plugs, a plurality of air flow channels for connecting the air inlet holes in different plugs being arranged in the air inlet valve, the air inlet valve being used for controlling the opening and closing of the air flow in all the air flow channels, the air flow channels in the air inlet valve being communicated with the spacer block through the two air inlet holes, a plurality of air outlet holes being formed in the lower part of the spacer block, and the air flow in the air flow channels being discharged from the air outlet holes in the lower part of the spacer block when the air flow enters the spacer block from the air inlet holes in the plugs due to the plugging state of the lower part of the spacer block, an air inlet joint of the air inlet valve being connected with an external high-pressure air flow, the air flow channels being in communication with the air inlet joint, and the pipe diameter of the air inlet joint being larger than the size of the air flow channels in the air inlet valve; a fixed block symmetrically installed on the upper part of the inner side of the spacer block and close to the two air inlet holes on the plugs; a check plate rotatably arranged on the fixed block, the two check plates in the same spray gun being symmetrically arranged and rotatable on the upper part of the spacer block, the check plate having two states: a first state of being vertically arranged with the fixed block and a second state of being horizontally arranged with the fixed block, at this time, one side of the two check plates being attached to the plugs and the lower end of the air inlet hole being covered by the check plate; and a torsional spring arranged around the fixed block and connected with the check plate, used for maintaining the check plate attached to the plugs.

[0011] Further comprising: a shunt partition, uniformly arranged in the arc-shaped cavity plate, arranged in an arc shape along the cavity shape of the arc-shaped cavity plate, the interior space of the arc-shaped cavity plate is separated into cavities corresponding to the number of the spray guns by the shunt partition, the lower end of the spray gun penetrates into the opposite cavity, the shunt partition is arranged in a conical shape, and the tip thereof faces the feed bin; and a material guiding bump, distributedly arranged at the bottom of the cavity of the arc-shaped cavity plate, the material guiding bumps are arc-shaped, and the material guiding bumps in one cavity are combined into a cluster and correspondingly arranged below the spray gun, and the end of the material guiding bump away from the opening of the cavity of the arc-shaped cavity plate is gathered to the position of the spray gun.

[0012] Optionally, the number of the feed pipes is not less than two, and the feed pipes are uniformly distributed on the feed bin.

[0013] Optionally, further comprising a double-shaft motor fixedly installed on one wall of the feed bin; and an eccentric block symmetrically installed on the output shaft of the double-shaft motor and synchronously rotated with the output shaft of the double-shaft motor.

[0014] Optionally, further comprising an arc-shaped flow guide block annularly arranged on the shunt fan, the arc-shaped flow guide block is provided with an air duct on the downward side, the number of the arc-shaped flow guide blocks is consistent with the number of the air holes on the shunt fan, and the arc-shaped flow guide blocks correspondingly cover the air holes.

[0015] Optionally, the bottom plate is provided with a material lifting mechanism, the material lifting mechanism comprises: a driving motor fixedly installed at the concentric position of the bottom of the bottom plate; a rotating roller rotatably arranged at the concentric position of the inner side of the bottom plate, the lower end of the rotating roller is fixedly connected with the output shaft of the driving motor, and the upper end of the rotating roller is fixedly provided with a disc frame on the outer side; a supporting rod is distributedly arranged on the disc frame of the rotating roller, and the number of the supporting rods is not less than three; a sliding rod is slidingly arranged on the supporting rod through an elastic element and elastically connected with the supporting rod; and a scraper is fixedly installed at the lower part of the sliding rod and rotationally contacts the arc-shaped groove on the bottom plate.

[0016] Optionally, further comprising a mounting seat arranged at the top of the cover and concentric with the cover, and a detachable panel is embeddedly arranged at the inner ring of the mounting seat. Compared with the prior art, the present application has the following advantages: the precursor material is sprayed into the pre-drying device in a misty form by the spraying mechanism, continuous processing of materials with different moisture contents can be realized, the large-particle materials are separated or scattered before spraying, the phenomenon of material agglomeration in the drying area of the device is effectively reduced, the uniformity of material heating is ensured, and the pre-drying area is arranged to preheat and dry the materials, the ability of the gas in the device to absorb moisture and the moisture content in the materials are improved by contacting the hot flow, the control of product particle size and particle size distribution is facilitated, and the uniformity of drying is ensured.

[0017] The application solves the problems of high energy consumption and large displacement in the traditional drying method by recycling the hot flow extracted by the fan during drying processing, meets the increasingly strict environmental protection requirements, and reduces the production cost.

[0018] The application agitates and scatters the material of high moisture content and large agglomerated particles deposited at the bottom of the pre-drying area by setting the material lifting mechanism, forces the material to fully contact with the hot flow, changes the deposited material into a suspended and rotating particle state, and effectively transports the material to the next processing area under the action of the airflow fluid drag.

[0019] The application prevents and eliminates the "blockage" and "tower arch" phenomenon caused by friction, deliquescence, electrification and component segregation in the material in the feed bin by setting the vibration mechanism on the feed bin, effectively removes the material adhered to the wall of the bin and the space of the arc-shaped cavity plate, improves the flowability of the material in the feed bin, reduces the occurrence of material jamming, and ensures smooth feeding of the spray gun.

[0020] The application orderly guides the multiple dispersed airflows blown by the fan by setting the arc-shaped guide block at the outlet of the air tunnel, generates vortex in the shell, reduces the irregular suspension and floating of the material caused by turbulence in the processing space, effectively improves the orderly flowability of the material in the drying equipment, improves the material conveying efficiency, and reduces the powder that is not completely emptied from falling into the air tunnel and vortex fan during shutdown. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a schematic diagram of the three-dimensional structure of the application.

[0022] Figure 2 It is a schematic diagram of the three-dimensional structure of the application with the installation platform hidden.

[0023] Figure 3 It is a sectional view of the preheating mechanism and drying separation mechanism of the application.

[0024] Figure 4 It is a sectional view of the fan and the drying separation mechanism of the application.

[0025] Figure 5 It is a schematic diagram of the three-dimensional structure of the feed bin and the material spraying mechanism of the application.

[0026] Figure 6 It is a disassembled schematic diagram of the material guiding block, flow dividing baffle and material spraying mechanism of the application.

[0027] Figure 7 It is an enlarged view of A of the application.

[0028] Figure 8The figure is a schematic diagram of the three-dimensional structure of the arc-shaped guide block and the material lifting mechanism of the present application.

[0029] Figure 9 The figure is a schematic diagram of the disassembly of the air guide volute, the shunt vane and the chassis of the present application.

[0030] Figure 10 The figure is a schematic diagram of the three-dimensional structure of the material lifting mechanism of the present application.

[0031] Figure 11 The figure is a schematic diagram of the three-dimensional structure of the shaking mechanism of the present application.

[0032] Legend: 1_ mounting table, 2_ fan, 3_ air guide volute, 31_ cover, 32_ shunt vane, 33_ chassis;

[0033] 4_ feeding bin, 40_ feeding pipe, 41_ arc-shaped cavity plate, 42_ spray gun, 43_ interval circular block, 44_ blocking block, 5_ conical cylinder, 51_ inner cylinder, 6_ discharging pipe, 61_ circulating air pipe;

[0034] 8_ arc-shaped guide block;

[0035] 9_ driving motor, 91_ rotating roller, 92_ supporting rod, 93_ sliding rod, 94_ scraper;

[0036] 10_ air inlet valve, 101_ air inlet hole, 102_ fixed block, 103_ check plate, 104_ torsion spring;

[0037] 11_ double-shaft motor, 111_ eccentric block;

[0038] 12_ material guiding protrusion, 13_ shunt separating block;

[0039] 14_ mounting seat. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0041] The present application provides a drying equipment for continuous processing of precursor materials, referring to Figures 1-4, including: installation platform 1; installation platform 1 upper left and right sides are respectively provided with conical barrel 5 and cover 31, the inside of conical barrel 5 and cover 31 is hollowly arranged, cover 31 and conical barrel 5 are stably installed by installation platform 1, cover 31 upper part is provided with a conical material collecting area, which is inclined and outwardly extending and provided with a discharge port, the tangent line of the edge of the upper part of conical barrel 5 is inclined and provided with a material guide pipe, the discharge port of the material collecting area of the upper part of cover 31 is connected with the material guide pipe of the upper part of conical barrel 5 by a discharge pipe 6, the space of cover 31 and conical barrel 5 is communicated by the discharge pipe 6, the materials in cover 31 and conical barrel 5 can be transferred to each other; the lower part of cover 31 is fixedly connected with air guide volute 3, the volute tongue of air guide volute 3 is provided with an air inlet pipe, the inside of air guide volute 3 is fixedly provided with a shunt vane 32, the shunt vane 32 is fixedly connected with a bottom disc 33, the upper part of bottom disc 33 is provided with a groove, the bottom opening of cover 31 is closed by bottom disc 33, shunt vane 32 and air guide volute 3, the lower part of the left side of installation platform 1 is installed with a fan 2 near conical barrel 5, fan 2 is composed of a volute type air making chamber and a motor, the volute type air making chamber is provided with a fan blade connected with the motor, the volute type air making chamber is provided with an air guide outlet protruding along the side wall, when the fan blade rotates, air flow will be transmitted from the air guide outlet, the air guide outlet of fan 2 is connected with the air inlet pipe of air guide volute 3 and communicates, when fan 2 works, air flow will be transmitted into air guide volute 3, Figures 1-3 , the outer wall of cover 31 is provided with a material spraying mechanism for spraying misty material into cover 31;

[0042] Referring to Figures 1-4 , the upper part of conical barrel is vertically provided with an inner barrel 51 with a through hole, one end of the upper part of inner barrel 51 is connected with a circulating air pipe 61, the other end of circulating air pipe 61 is connected with the volute type air making chamber of fan 2, the inner barrel 51 and the air making chamber of fan 2 are communicated by circulating air pipe 61, the circulating air pipe 61 is provided with a pipe interface for connecting external separation or dust removal equipment, Figure 9The shunt fan 32 is composed of two side plates and a plurality of arc-shaped blades. A plurality of arc-shaped guide channels are formed between the two side plates by the plurality of arc-shaped blades. A plurality of air holes are arranged on the upper side plate of the shunt fan 32 above the guide channels and in the middle between the corresponding two arc-shaped blades of the upper side plate. The air holes are dispersed and arranged in a ring shape on the shunt fan 32. The openings of the air holes are substantially consistent with the arrangement direction of the arc-shaped blades. When the airflow in the shunt fan 32 is discharged from the air holes, it is inclined upward and impacts on the inner wall of the cover 31, spirally rises along the inner wall of the cover 31, and forms a vortex in the cover 31.

[0043] Referring to Figure 1 , Figure 2 , Figure 5 and Figure 6The feeding mechanism comprises a feeding bin 4 fixedly installed on the outer wall of the cover 31 away from the conical cylinder 5, the inner space of the feeding bin 4 is large at the top and small at the bottom, and the lower inner space of the feeding bin 4 is recessed towards the cover 31, the upper part of the feeding bin 4 is provided with a feeding pipe 40 for connecting an external material conveying pipe, the feeding pipe 40 is in communication with the inner space of the feeding bin 4, the lower part of the feeding bin 4 is provided with an arc-shaped cavity plate 41, the arc-shaped cavity plate 41 is internally provided with a feeding cavity, one side of the arc-shaped cavity plate 41 is attached to the outer wall of the cover 31, the internal cavity of the arc-shaped cavity plate 41 is in communication with the inner space of the feeding bin 4, the material entering from the feeding pipe 40 will flow downwards along the inner wall of the feeding bin 4 to the cavity opening of the arc-shaped cavity plate 41, the arc-shaped cavity plate 41 is uniformly provided with not less than three spray guns 42 at intervals, the spray guns 42 are powder spray guns 42, the feeding port of the spray guns 42 is in communication with the internal cavity of the arc-shaped cavity plate 41, the spray heads of the spray guns 42 all extend into the cover 31, a high-pressure gas flow is connected to the gas inlet joint provided on the spray guns 42, a large suction force will be generated at the feeding port of the spray guns 42, and the depth of the internal cavity of the arc-shaped cavity plate 41 should be appropriate: to ensure that the material entering the feeding bin 4 does not directly contact the spray guns 42, to avoid that the material covers the feeding port of the spray guns 42 and causes the feeding port to be blocked, and to avoid that the material needs to enter the spray guns 42 through a long distance, which will lead to insufficient suction force and the material cannot be effectively sucked, the spray heads of the spray guns 42 all extend into the cover 31, the spray heads are all provided with duckbill spray heads, the material in the feeding bin 4 is sprayed in a mist state into the cover 31 through the spray heads, the upper part of the spray guns 42 is fixedly provided with a blocking block 44 for closing the upper part of the spray guns, a spacing block 43 is fixedly arranged on the inner side of the upper part of the spray guns 42, the upper end of the spacing block 43 is connected to the blocking block 44, a ring-shaped gap is formed in the upper part of the spray guns 42, the spacing block 43 is hollow, but the lower part of the spacing block 43 is in a closed state, and a ring-shaped protrusion is arranged at the lower end of the spacing block 43, the protrusion is below the feeding port of the spray heads of the spray guns 42, and the ring-shaped gap is further reduced, so that the material sucked into the spray guns 42 will first pass through the gap between the spacing block 43 and the inner part of the spray guns 42 before being sprayed through the spray heads, if the particle size of the agglomerated material is too large, the material will be dispersed or blocked by the protrusion of the spacing block 43, so that the particle size of the material sprayed into the cover 31 through the spray guns 42 is not too large.

[0044] In the production of ultrafine powder of the precursor, the moisture content of the obtained filter cake is about 20% after the filtration and washing processes, and the water content in the precursor material during drying is required to be reduced from about 20% to below 1%. That is, before the material is dried, the water content in different batches of material is not consistent. When the drying equipment is processing, the material needs to be loose during drying, but the flowability should not be poor, and the material needs to be heated uniformly. The material is transferred into the feed bin 4 through the material conveying equipment. It should be noted that the number of feed pipes 40 should be no less than two, and they are evenly distributed in front and back. In this way, it can effectively avoid the situation that when the powder enters the feed bin 4, it is locally accumulated at the material falling position of a single feed pipe 40 in the feed bin 4, resulting in no powder around the spray gun 42 far from the feed pipe 40, uneven distribution of the work of the spray material component, and the material cannot be quickly discharged, affecting the feeding of the material conveying equipment. Before the material is discharged into the housing 31, the fan 2 needs to be turned on in advance, so that the airflow between the housing 31 and the conical cylinder 5 enters the circulation state according to the preset state. The heat source for drying can be heated steam or airflow connected by the fan 2 to an external heating machine, or a heating air layer can be added to the outer wall of the housing 31 and the conical cylinder 5, and the heat source is transferred to the drying equipment through the heat transfer of the heating medium. However, before the drying work is carried out, the housing 31 and the conical cylinder 5 need to be preheated to the working temperature, so that the sprayed bulk material can fully contact with the hot airflow in the housing 31, greatly reducing the water content in the material. Then, the spiral upward airflow discharged from the upper air hole of the shunt vortex fan 32 carries the material upward into the discharge pipe 6 and into the conical cylinder 5 for secondary drying. When the gas carrying the material enters the conical cylinder 5 along the axial direction, the airflow is guided by the tangential direction of the guide groove and rotates at the upper part of the conical cylinder 5. The powder particles with large density and mass are separated from the gas under the action of large inertial centrifugal force, and the powder particles cannot follow the tight curve of the airflow due to their large inertia, so they hit the outer wall and then fall to the bottom of the conical cylinder 5. At this time, the dried powder is discharged from the discharge opening provided at the lower part of the conical cylinder 5, and the hot air containing the separated powder flows upward in a secondary vortex and is discharged to the fan 2 through the inner cylinder 51 for reuse, thereby realizing simultaneous drying and rapid gas-material separation of the material. The material is continuously dried by the spray material mechanism, which continuously sprays the material into the drying equipment, and the circulating air path and the conical cylinder 5 for gas-material separation, which has high drying efficiency and effectively avoids the situation that the material cannot be uniformly heated due to clumping and agglomeration caused by moisture, resulting in uneven drying. It is suitable for processing precursor materials with different water contents and has wide applicability. At the same time, by reusing the hot gas stream extracted by the fan 2, the heat loss is reduced, and the energy consumption of the equipment during operation is greatly reduced.

[0045] Referring to Figure 3 , Figure 5 , Figure 6 and Figure 7Further comprising: the air inlet valve 10 installed between the upper part of the block 44, two air inlet holes 101 are opened in each block 44 for introducing the air flow of the air inlet valve 10, the air inlet valve 10 is provided with a plurality of air flow channels for connecting the air inlet holes 101 in different blocks 44, the air inlet valve 10 can control the opening and closing of the air flow in all air flow channels, the air flow channels in the air inlet valve 10 are communicated with the interval circular block 43 through the two air inlet holes 101, and a plurality of exhaust holes are correspondingly arranged at the lower part of the interval circular block 43, since the lower part of the interval circular block 43 is blocked, when the gas in the air flow channel enters the interval circular block 43 from the air inlet hole of the block 44, the gas flow will be discharged from the exhaust hole at the lower part of the interval circular block 43, the air inlet valve 10 is provided with an air inlet connector connected with the external high-pressure air flow, the air flow channels are communicated with the air inlet connector, and the pipe diameter of the air inlet connector should be larger than the size of the air flow channels in the air inlet valve 10, so that the pressure of the air flow after being divided by the air inlet connector is still in the applicable range;

[0046] Referring to Figure 5 and Figure 6 , the fixed block 102 is symmetrically arranged on the inner upper part of the interval circular block 43, and the fixed block 102 is close to the two air inlet holes 101 on the block 44, the check plate 103 is rotatably arranged on the fixed block 102, and the torsional spring 104 is arranged around the fixed block 102, one end of the torsional spring 104 is connected with the check plate 103, and the check plate 103 is in a flat state when the torsional spring 104 is not subjected to external force, at this time, the upward side of the check plate 103 is attached to the block 44, and the air inlet hole on the same side of the block 44 is blocked, the two check plates 103 in the same spray gun 42 are symmetrically arranged, when the gas flow with a certain flow rate impacts on the check plate 103, the check plate 103 rotates downward in the spray gun 42, so that the lower end of the air inlet hole of the block 44 is communicated with the internal space of the interval circular block, the gas flow enters and is discharged at the exhaust hole of the interval circular block 43;

[0047] Wherein, when the equipment is working, the air inlet connector of the air inlet valve 10 is connected with the external high-pressure air flow, and the air flow channels in the air inlet valve 10 are in a closed state, after the spray gun 42 works for a period of time, the lower part of the annular gap between the interval circular block 43 and the spray gun 42 will inevitably be blocked by the material, at this time, the internal air flow channel is controlled to be opened by the air inlet valve 10, the high-pressure air flow will flush away the check plate 103, and the material blocking the interval circular block 43 will be flushed away from the exhaust hole, the air flow channel will be closed immediately under the control of the air inlet valve 10, the air flow is cut off, the check plate 103 is quickly reset under the action of the torsional spring 104, the air inlet hole is covered, and the internal space of the interval circular block 43 is in a closed state, so that the material flowing in the spray gun 42 cannot enter the interval circular block 43 through the exhaust hole.

[0048] Referring to Figure 1 , Figure 2 andFigure 11 In order to avoid the material from being blocked and adhered to the feeding part during feeding, the double-shaft motor 11 is fixedly installed on one wall of the feeding bin 4, and eccentric blocks 111 are symmetrically installed on the ends of the output shaft of the double-shaft motor 11. The eccentric blocks 111 rotate synchronously with the output shaft of the double-shaft motor 11. The exciting vibration force is generated by the centrifugal force generated by the high-speed rotation of the output shaft of the double-shaft motor 11 and the eccentric blocks 111, and the vibration force is continuously transmitted to the feeding bin 4 through the mounting base of the double-shaft motor 11. The feeding bin is continuously beaten, which effectively prevents and eliminates the "blockage" of the material and the "tower arch" phenomenon in the internal material of the feeding bin due to friction, deliquescence, electrification, component segregation and other reasons, effectively removes the material adhered in the space of the bin wall and the arc-shaped cavity plate 41, improves the flowability of the material in the feeding bin 4, reduces the blocking of the material, and ensures smooth feeding of the spray gun 42.

[0049] Referring to Figures 5-6 The split flow partition block 13 is uniformly arranged in the arc-shaped cavity plate 41. The split flow partition block 13 is arranged in an arc shape along the cavity shape of the arc-shaped cavity plate 41. The internal space of the arc-shaped cavity plate 41 is divided into cavities corresponding to the number of spray guns 42 by the split flow partition block 13. The lower end of the spray gun 42 penetrates into the opposite cavity. By reducing the suction area corresponding to the spray gun 42, the suction force is more concentrated during feeding, and is not affected by the operation of other spray guns 42. The material is more concentrated and coherent during feeding. The split flow partition block 13 is conical, with the tip pointing towards the feeding bin 4. The sides of the tip are arc-shaped and expand towards both sides. The arc-shaped cavity plate 41 divides the bottom of the multiple cavities into material guiding protrusions 12. The material guiding protrusions 12 are arc-shaped, and there are multiple material guiding protrusions 12 in one cavity, which are combined into a cluster and arranged below the corresponding spray gun 42 installed on the corresponding cavity. The end of the material guiding protrusion 12 away from the opening of the cavity of the arc-shaped cavity plate 41 is gathered towards the position of the spray gun 42.

[0050] The split flow partition block 13 and the material guiding protrusion 12 have the following functions: guiding the material to enter the spray gun 42 in an orderly manner, reducing the collision and friction between the materials, ensuring the feeding efficiency, and the height of the upward protrusion of the arc-shaped protrusion 12 is between 15mm-25mm. The moderate protrusion height can avoid being divided by multiple protrusions that are too high towards the opening of the cavity of the arc-shaped cavity plate 41, forming multiple small openings with small openings, and the gathered material is blocked when passing through, causing the opening of the arc-shaped cavity plate 41 to be blocked.

[0051] Referring to Figures 8-9Further comprising: an annular arrangement of arc-shaped flow guide blocks 8 on the shunt fan 32, the arc-shaped flow guide blocks 8 are shaped with one side low point rising upward along the arc of the inner circle of the chassis 33, the arc-shaped flow guide blocks 8 are provided with air ducts on the downward side, the number of arc-shaped flow guide blocks 8 is consistent with the number of air holes on the shunt fan 32, and the air holes are covered one by one, the airflow in the shunt fan 32 flows out of the air hole and enters the shell 31, and then flows out along the air duct of the arc-shaped flow guide block 8, and through the guidance of the arc-shaped air duct and the upward face of the adjacent arc-shaped flow guide block 8, the direction of the airflow can be effectively controlled, the vortex and turbulence are reduced, the airflow in the shell 31 is uniformly distributed, the material can be stably carried by the airflow with stable flow rate and flow direction, the material in the processing space is prevented from irregularly floating and drifting due to turbulence, the orderly flow of the material in the drying equipment is effectively improved, the material conveying efficiency is improved, the airflow transmission resistance is reduced, and the energy saving and noise reduction purposes are achieved to a certain extent. When the machine is stopped, the powder that is not completely emptied can fall into the air hole and the fan to a certain extent.

[0052] Referring to Figure 1 、 Figure 2 、 Figure 3 and Figure 10 Further comprising: a material lifting mechanism arranged on the chassis 33, the material lifting mechanism comprising: a driving motor 9 fixedly installed at the concentric position of the bottom of the chassis 33, the bottom of the driving motor 9 is consistent in height with the bottom of the installation table 1, and can be supported by the bottom platform of the equipment to improve the stability during work, a rotating roller 91 is rotatably arranged at the concentric position of the inner side of the chassis 33, the lower end of the rotating roller 91 is fixedly connected with the output shaft of the driving motor 9, a disc holder is fixedly arranged on the outer side of the upper end of the rotating roller 91, and not less than three supporting rods 92 are arranged at intervals on the disc holder of the rotating roller 91. The lower outer side of the supporting rod 92 is slidingly provided with a sliding rod 93 through an elastic member, the sliding rod 93 is elastically connected with the supporting rod 92, a scraper 94 is fixedly arranged at the lower part of the sliding rod 93, the installation angles of the scrapers 94 on different sliding rods 93 are consistent, the bottom of the scraper 94 is always in contact with the groove on the chassis 33 under the action of the elastic member in the sliding rod 93, and the side of the scraper 94 close to the chassis 33 is relatively thin. When the driving motor 9 works, the rotating roller 91 rotates synchronously to drive the components on the disc holder to rotate, and the side of the bottom of the scraper 94 rotates and contacts with the chassis 33.

[0053] When drying and processing, part of the high-moisture content and agglomerated large-particle material that cannot be transported with the airflow will settle on the chassis 33 after a period of time, and the material in the groove of the chassis 33 close to the center point area cannot be effectively transported out of the shell 31 even if it is dried, at this time, the driving motor 9 drives the scraper 94 to rotate to stir and scatter the material falling on the bottom, change the deposited material into a state of suspended and rotating particles, and force the material to fully contact with the hot airflow, which can be effectively transported to the next processing area under the action of the airflow fluid drag force.

[0054] Referring to Figures 1-3 Further comprising: a mounting seat 14 arranged at the top of the cover shell 31, the mounting seat 14 is concentric with the cover shell 31, and a detachable panel is embedded in the inner circle of the mounting seat 14, the mounting seat 14 is used for mounting the support base reserved for other processing components, the mounting seat 14 can be used as a driving motor to provide driving force for the analysis machine which needs to perform particle size classification on the material with particle size requirements inside the mounting cover shell 31, or install a heating device to supplement the heat temperature inside the mounting cover shell 31, and connect the pipeline flange, etc., so as to facilitate the later equipment modification and upgrading, and the panel at the inner circle of the mounting seat 14 needs to be removed before use.

[0055] The above is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A continuous processing dry equipment for precursor material, comprising a mounting table (1); characterized in that Further comprising a cover shell (31) fixedly arranged on one side of the upper portion of the mounting table (1), an upper portion of the cover shell (31) is obliquely provided with a discharge port; an air guide volute (3) is fixedly connected to the lower end of the cover shell (31), and an air inlet pipe is arranged at the volute tongue of the air guide volute (3); a circulating fan (2) is arranged on the left lower side of the mounting table (1) and comprises a volute type air making chamber and a motor, an air guide outlet is arranged on the volute type air making chamber and protrudes outward along the side wall, the air guide outlet is connected to and communicates with the air inlet pipe of the air guide volute (3); a conical cylinder (5) is arranged on the mounting table (1) away from the cover shell (31), the inside of the conical cylinder (5) is hollow, and a material guide pipe is obliquely arranged at the tangent line of one side of the edge of the top cover of the conical cylinder (5), the material guide pipe communicates with the space in the upper portion of the conical cylinder (5), a downward spiral flow guide groove is arranged at the inlet of the material guide pipe in the conical cylinder (5), and a discharge opening is arranged at the lower portion of the cone of the conical cylinder (5); an inner cylinder (51) is arranged at the concentric position of the top cover of the conical cylinder (5), a tubular passage is arranged in the inner cylinder (51), and one end of the lower portion of the inner cylinder (51) penetrates into the space in the upper portion of the cone of the conical cylinder (5); a discharge pipe (6) is arranged between the discharge port of the cover shell (31) and the inlet of the conical cylinder (5), so that the space in the cover shell (31) and the space in the conical cylinder (5) are communicated; a circulating air pipe (61) is arranged in communication with the upper end of the inner cylinder (51) at one end and in communication with the volute type air making chamber of the fan (2) at the other end; a material spraying mechanism is arranged on the cover shell (31), The material spraying mechanism comprises: a feeding bin (4) fixedly arranged on the outer wall of the cover shell (31) away from the conical cylinder (5), an arc-shaped cavity plate (41) arranged at the lower portion of the feeding bin (4) and attached to the outer wall of the cover shell (31) on one side, and an internal cavity of the arc-shaped cavity plate (41) in communication with the internal cavity of the feeding bin (4); a plurality of spray guns (42) arranged at intervals on the arc-shaped cavity plate (41), the number of the spray guns (42) is not less than three, and each spray gun (42) comprises a material distribution pipe, an air inlet connector, and a spray head, one end of the lower portion of the material distribution pipe penetrates into the internal cavity of the arc-shaped cavity plate (41), and the spray head of each spray gun (42) penetrates into the cover shell (31), so that the material in the feeding bin (4) is input into the cover shell (31) through the spray gun (42); a block (44) fixedly arranged on the upper portion of the material distribution pipe of the spray gun (42); and a spacer block (43) fixedly arranged on the upper portion of the material distribution pipe of the spray gun (42), the upper end of the spacer block (43) is connected to the block (44), and a ring-shaped gap is formed on the upper portion of the material distribution pipe of the spray gun (42). Further comprising: air inlet valves (10) installed between the upper portions of the plugs (44), two air inlet holes (101) for introducing air flow into the air inlet valves (10) are opened in each of the plugs (44), a plurality of air flow channels for connecting the air inlet holes (101) in different plugs (44) are arranged in the air inlet valves (10), the air inlet valves (10) are used to control the on-off of the air flow in all the air flow channels, the air flow channels in the air inlet valves (10) are communicated with the interval circular blocks (43) through the two air inlet holes (101), and a plurality of exhaust holes are arranged at the lower portions of the interval circular blocks (43). Since the lower portions of the interval circular blocks (43) are blocked, when the air flow in the air flow channels enters the interval circular blocks (43) from the air inlet holes (101) of the plugs (44), the air flow is discharged from the exhaust holes at the lower portions of the interval circular blocks (43).

2. The precursor material continuously processable drying apparatus according to claim 1, wherein, The inside space of the feeding bin (4) is large at the top and small at the bottom, and the lower inside space is recessed to one side of the cover (31); a feeding pipe (40) is arranged on the upper part of the feeding bin (4) and communicates with the inside of the feeding bin (4), and is used for connecting an external material conveying pipeline; the number of the feeding pipes (40) is not less than two, and they are evenly distributed on the feeding bin (4) in front and back; a shunt volute (32) is arranged in the air guide volute (3); the shunt volute (32) is composed of two upper and lower edge plates and a plurality of arc-shaped blades evenly arranged inside the edge plates; a plurality of air holes are formed in the upper edge plate of the shunt volute (32), and the air holes are arranged on the upper edge plate between the corresponding two arc-shaped blades; a bottom plate (33) is mounted on the inner side of the shunt volute (32), and a recess is arranged on the upper part of the bottom plate (33); the height of the bottom plate (33) is consistent with the height of the shunt volute (32), the inner side of the shunt volute (32) is completely closed, the lower end of the cover (31) is completely closed by the shunt volute (32) and the air guide volute (3), an air inlet joint connected to an external high-pressure airflow is arranged on the air inlet valve (10), the airflow channels communicate with the air inlet joint, the pipe diameter of the air inlet joint is larger than the size of the airflow channels in the air inlet valve (10); a fixed block (102) is symmetrically mounted on the upper part of the inner side of the interval circular block (43), and is close to the two air inlet holes (101) on the plugging block (44); a check plate (103) is rotatably arranged on the fixed block (102), and the two check plates (103) in the same spray gun (42) are symmetrically arranged and rotate on the upper part of the interval circular block (43); the check plate (103) has two forms: a first state of being perpendicular to the fixed block (102) by rotating downward and a second state of being flat with the fixed block (102) by rotating, at this time, one side of the two check plates (103) is close to the plugging block (44), and the lower end of the air inlet hole (101) is covered by the check plate (103); a torsional spring (104) is wound around the fixed block (102), one end of the torsional spring (104) is connected to the check plate (103), and the torsional spring (104) is used for maintaining the check plate (103) close to the plugging block (44). Further comprising: a shunt partition block (13) uniformly arranged in the arc-shaped cavity plate (41), arranged in an arc shape along the cavity shape of the arc-shaped cavity plate (41), the interior space of the arc-shaped cavity plate (41) is divided into cavities corresponding to the number of the spray guns (42) by the shunt partition block (13), the lower end of the spray gun (42) penetrates into the opposite cavity, the shunt partition block (13) is arranged in a tapered shape, and the tip thereof faces the feed bin (4); a material guiding bump (12) is arranged at the bottom of the cavity of the arc-shaped cavity plate (41), the material guiding bump (12) is arc-shaped, and the material guiding bump (12) in one cavity is combined into a cluster and is arranged below the spray gun (42) correspondingly, and the end of the material guiding bump (12) away from the opening of the cavity of the arc-shaped cavity plate (41) is gathered to the position of the spray gun (42).

3. The precursor material continuously processable drying apparatus according to claim 2, wherein, Further comprising a double-shaft motor (11) fixedly installed on one wall of the feed bin (4); an eccentric block (111) symmetrically installed on the output shaft of the double-shaft motor (11) and synchronously rotated with the output shaft of the double-shaft motor (11).

4. The precursor material continuously processable drying apparatus according to claim 3, wherein, Further comprising an arc-shaped flow guide block (8) arranged in a ring shape on the shunt vortex fan (32), which is provided with an air duct on the downward side, the number of the air duct is consistent with the number of the air tunnel on the shunt vortex fan (32), and the air tunnel is covered one by one correspondingly.

5. The precursor material continuously processable drying apparatus according to claim 4, wherein, The bottom plate (33) is provided with a material lifting mechanism, and the material lifting mechanism comprises: a driving motor (9) fixedly installed at the concentric position of the bottom plate (33); a rotating roller (91) rotatably arranged at the concentric position of the inner side of the bottom plate (33), the lower end of the rotating roller (91) is fixedly connected with the output shaft of the driving motor (9), and the upper end of the rotating roller (91) is fixedly provided with a disc frame; a supporting rod (92) is arranged at the disc frame of the rotating roller (91) in a spaced manner, and the number of the supporting rod (92) is not less than three; a sliding rod (93) is slidably arranged on the supporting rod (92) through an elastic member, and the sliding rod (93) is elastically connected with the supporting rod (92); and a scraper (94) is fixedly installed at the lower part of the sliding rod (93) and is in rotational contact with the arc-shaped groove on the bottom plate (33).

6. The precursor material continuously processable drying apparatus according to claim 5, wherein, Further comprising a mounting seat (14) arranged at the top of the cover shell (31) and concentric with the cover shell (31), and a detachable panel is embedded at the inner ring of the mounting seat (14).

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