Grinding and separating mechanical system for coarse cereal powder processing

Abstract

The invention relates to the field of agricultural product energy-saving processing equipment, and discloses a grinding and separating mechanical system for coarse cereal powder processing, the grinding and separating mechanical system comprises a grinding part and a collecting barrel, the collecting barrel is placed below the grinding part; the grinding part is fixedly mounted in the middle of the drying part, and the collecting barrel is placed at the bottom end of the interior of the drying part; the grinding part is used for impacting, smashing and grinding the coarse cereals discharged downwards by the drying part and collecting redundant hot air discharged by the drying part, and the grinding part can run to drive the interior of the top end of the drying part to run to convey the coarse cereals and can also drive the bottom of the drying part to rotate and run; according to the system, material adaptability is improved, energy consumption control is optimized, the automation level is improved, the restriction of existing equipment on the efficiency and cost of the coarse cereal processing industry can be effectively broken through, higher economic benefits are created for enterprises, and upgrading of the industry processing technology is promoted.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of energy-saving processing equipment for agricultural products, in particular to a grinding and separating mechanical system for processing coarse grain powder. BACKGROUND

[0002] In the field of coarse grain powder processing, the grinding and separating mechanical system is the core equipment for realizing fine processing of coarse grain, and its performance directly affects the processing efficiency and product quality. However, the existing mechanical system has obvious technical limitations in actual application, and it is difficult to meet the diversified processing needs: Firstly, the processing material adaptability is poor, and the existing equipment can only grind dry coarse grain. When facing coarse grain with high water content and insufficient dryness, problems such as material caking and grinding cavity blockage may occur, which may cause the equipment to malfunction, and additional pre-treatment process of coarse grain drying is required, which not only prolongs the overall processing cycle, but also greatly reduces the processing efficiency and increases the time cost and operating cost of enterprises; Secondly, the energy consumption control is unreasonable. The current coarse grain powder processing equipment generally adopts a design mode of independent operation of multiple drive sources, and each functional module is configured with a drive device, which results in high overall energy consumption of the equipment, does not meet the development requirements of energy saving and consumption reduction in the current industrial production field, is not conducive to the control of energy cost by enterprises, and is contrary to the concept of green production; Finally, the product processing automation is insufficient. After the existing system completes the grinding of coarse grain, it cannot automatically spread the output coarse grain powder, and relies on manual subsequent spreading and arrangement work, which not only increases the labor intensity, but also easily causes uneven distribution of coarse grain powder due to differences in manual operation, affecting the stability of subsequent packaging, storage and other processes, and is difficult to meet the use needs of modern processing production line for automation and continuous operation; In summary, the defects of the existing grinding and separating mechanical system for coarse grain powder processing in terms of material adaptability, energy saving and automatic processing have become the key problems restricting the efficiency improvement and cost optimization of the coarse grain processing industry, and technical improvement and upgrading are urgently needed. SUMMARY

[0003] The purpose of the present application is to provide a grinding and separating mechanical system for processing coarse grain powder, which solves the following technical problems: how to solve the problems of poor processing material adaptability and unreasonable energy consumption control and insufficient product processing automation of the existing grinding and separating mechanical system for processing coarse grain powder.

[0004] The purpose of the present application can be achieved by the following technical solution: a grinding and separating mechanical system for processing coarse grain powder, comprising: a grinding component and a collecting barrel, the collecting barrel being placed below the grinding component; the grinding component is fixedly installed in the middle part of the drying component, and the collecting barrel is placed at the inner bottom end of the drying component. The grinding part is used for impact crushing and grinding of the grains discharged downward by the drying part, and the operation of the grinding part can drive the internal operation of the top end of the drying part to convey the grains, and can also drive the bottom of the drying part to rotate and operate; The drying part is used for drying the relatively humid grains, and the bottom of the drying part drives the collection barrel to rotate under the driving of the grinding part, and the drying part can also convey the excess hot air in the inside to the inside of the grinding part for reuse; The collection barrel is used for receiving the grain powder discharged downward by the grinding part, and the bottom of the grinding part can also agitate the grain powder in the inside of the rotating collection barrel.

[0005] As a preferred scheme of the present application: the grinding part comprises a driving motor, a blocking cover and a crushing protective cover, one end of the driving motor is fixedly connected with a helical gear shaft, the outer surface of the helical gear shaft is fixedly installed with a grinding disc, the blocking cover is sleeved on the outer surface of one end of the helical gear shaft, the crushing protective cover is sleeved on the outer surface of the other end of the helical gear shaft, and the blocking cover and the crushing protective cover are fixedly connected with each other, a filter screen ring is arranged in the inside of the crushing protective cover and at the periphery of the grinding disc, and a connecting rod is rotatably connected to the upper part of the crushing protective cover; The outer surface of the connecting rod is uniformly fixedly connected with connecting wires, one end of the connecting wire is fixedly connected with an impact ball, one end of the connecting rod is fixedly connected with a gear shaft, the outer surface of one end of the gear shaft is fixedly installed with a large sprocket, the outer surface of the large sprocket is meshingly connected with a transmission chain, the outer surface of one end of the driving motor is fixedly installed with a small sprocket, and the bottom of the crushing protective cover is provided with a discharge nozzle; The bottom center of the discharge nozzle is rotatably connected with a limiting rotating shaft, the bottom center of the limiting rotating shaft is welded with a powder pushing frame, the outer surface of the bottom of the discharge nozzle and at the edges of the two ends of the limiting rotating shaft is provided with a blocking block, the two ends of the limiting rotating shaft are fixedly connected with abutting blocks, the outer surface of the bottom of the discharge nozzle is provided with a rubber clamping block, and the center of the side surface of the crushing protective cover is provided with a connecting hole.

[0006] As a preferred scheme of the present application: the drying part comprises a support frame, the top of the support frame is provided with a drying cylinder, one end of the upper part of the drying cylinder is fixedly installed with a dryer, the other end of the top of the drying cylinder is provided with a material guide pipe, the two ends of the drying cylinder are both provided with a feeding port, the inside of the feeding port is threadedly connected with a guide pipe, the inside of the dryer is rotatably connected with a conveying cylinder, the outer surface of the middle part of the conveying cylinder is provided with a transmission gear ring, and the inner surface of the conveying cylinder is fixedly installed with an inner spiral auger; The middle outer surface of the dryer is provided with a through gap, the outer surface bottom of the drying cylinder and the two side edges of the gap are provided with limiting shaft sleeves, the middle bottom surface of the support frame is fixedly installed with a control box, the bottom end of the support frame is provided with a support base, the end of the support frame and below the lower edge of the material guide pipe is rotatably connected with a transmission gear shaft, and the top end of the transmission gear shaft is provided with a helical gear.

[0007] As a preferred scheme of the present application: the gear shaft is rotatably connected with the material feeding cylinder through a transmission gear ring, and the small chain wheel is rotatably connected with the gear shaft through a transmission chain.

[0008] As a preferred scheme of the present application: the connecting wire is in movable contact with the outer surface of the filter screen ring through the impact ball at one end, and the material guide pipe at the bottom of one end of the drying cylinder is connected with the side of the crushing protective cover through a connecting hole.

[0009] As a preferred scheme of the present application: the driving motor is meshingly connected with the helical gear through the helical gear shaft connected at one end, and the bottom outer surface of the collecting barrel is provided with a gear slot.

[0010] As a preferred scheme of the present application: the bottom end of the transmission gear shaft is meshingly connected with the bottom outer surface of the collecting barrel through the gear slot, and the two ends of the gear shaft are rotatably connected with the bottom outer surface of the drying cylinder through the limiting shaft sleeves.

[0011] As a preferred scheme of the present application: the middle outer surface of the powder stirring frame is movably connected with the rubber clamping block, and the limiting rotating shaft is movably abutted with the blocking block through the abutting blocks at the two ends.

[0012] The present application has the following advantages: The improved system breaks through the limitation of only processing dry grains, can directly grind the grains with high water content and insufficient dryness, avoids the problems of material caking and grinding cavity blockage, does not need to additionally increase the drying pretreatment process, can shorten the overall processing period, greatly improve the processing efficiency, significantly reduce the enterprise time cost and operation cost, and meets the diversified grain processing demand. The present application has the following advantages: The application improves the automation level of finished product processing by arranging a powder stirring frame at the bottom of the grinding component, so that the system is additionally provided with an automatic coarse grain powder uniform distribution function, and the output coarse grain powder can be automatically uniformly spread and arranged after grinding, without relying on manual operation, thereby reducing the labor intensity and avoiding uneven distribution of the coarse grain powder caused by manual operation difference, ensuring the stability of subsequent packaging, storage and other processes, meeting the use requirements of modern processing production line for automation and continuous operation, and improving the smoothness and reliability of the overall production process. BRIEF DESCRIPTION OF DRAWINGS

[0013] The application will be further described below with reference to the drawings.

[0014] Figure 1 It is a schematic structural diagram of a grinding and separating mechanical system for coarse grain powder processing. Figure 2 It is a schematic structural diagram of a side edge of the grinding component. Figure 3 It is a schematic structural diagram of a cross-section of the grinding component. Figure 4 It is a schematic structural diagram of a cross-section of the grinding component. Figure 3 It is a schematic structural diagram of a cross-section of the grinding component. Figure 5 It is a schematic structural diagram of a bottom of the grinding component. Figure 6 It is a schematic structural diagram of a bottom of the grinding component. Figure 5 It is a schematic structural diagram of a bottom of the grinding component. Figure 7 It is a schematic structural diagram of a drying component. Figure 8 It is a schematic structural diagram of a drying component. Figure 7 It is a schematic structural diagram of a drying component.

[0015] BRIEF DESCRIPTION OF DRAWINGS: 1, grinding component; 2, drying component; 3, collection barrel; 11, crushing protective cover; 12, powder stirring frame; 13, blocking cover; 14, small chain wheel; 15, driving motor; 16, transmission chain; 17, large chain wheel; 18, gear shaft; 19, filter screen ring; 110, grinding disc; 111, connecting rod; 112, impact ball; 113, connecting wire; 114, connecting hole; 115, rubber clamping block; 116, discharge nozzle; 117, blocking block; 118, abutting block; 119, limiting rotating shaft; 120, bevel gear shaft; 21, pressure relief valve; 22, bevel gear; 23, support frame; 24, transmission gear shaft; 25, support base; 26, control box; 27, guide pipe; 28, drying cylinder; 29, dryer; 210, material guide pipe; 211, feeding port; 212, limiting shaft sleeve; 213, transmission gear ring; 214, inner spiral auger; 215, conveying cylinder. DETAILED DESCRIPTION

[0016] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0017] Please refer to Figures 1-8 As shown in the drawings, the present application is a kind of grinding separation mechanical system for processing coarse grain powder, comprising: grinding parts 1 and collection barrel 3, collection barrel 3 is placed below the grinding parts 1;Grinding parts 1 is fixedly installed in the middle of drying parts 2, and collection barrel 3 is placed at the bottom end inside the drying parts 2; The grinding parts 1 is used for impact crushing and grinding of the coarse grain discharged downward by the drying parts 2, while collecting the excess hot air discharged by the drying parts 2, and the operation of the grinding parts 1 can drive the top end inside the drying parts 2 to run and convey the coarse grain, and can also drive the bottom of the drying parts 2 to run; The drying parts 2 is used for drying the relatively humid coarse grain, and the bottom of the drying parts 2 drives the collection barrel 3 to rotate under the driving of the grinding parts 1, and the drying parts 2 can also convey the excess hot air inside to the inside of the grinding parts 1 for reuse; The collection barrel 3 is used for receiving the coarse grain powder discharged downward by the grinding parts 1, and the bottom of the grinding parts 1 can also agitate the coarse grain powder inside the rotating collection barrel 3.

[0018] The grinding parts 1 comprises a driving motor 15, a blocking cover 13 and a crushing protective cover 11, one end of the driving motor 15 is fixedly connected with a helical gear shaft 120, the outer surface of the helical gear shaft 120 is fixedly installed with a grinding disc 110, the blocking cover 13 is sleeved on the outer surface of one end of the helical gear shaft 120, the crushing protective cover 11 is sleeved on the outer surface of the other end of the helical gear shaft 120, and the blocking cover 13 and the crushing protective cover 11 are fixedly connected with each other, a filter screen ring 19 is arranged inside the crushing protective cover 11 and at the periphery of the grinding disc 110, and a connecting rod 111 is rotatably connected to the upper part of the crushing protective cover 11; The outer surface of the connecting rod 111 is uniformly fixedly connected with connecting wires 113, one end of the connecting wires 113 is fixedly connected with impact balls 112, one end of the connecting rod 111 is fixedly connected with a gear shaft 18, the outer surface of one end of the gear shaft 18 is fixedly installed with a large chain wheel 17, the outer surface of the large chain wheel 17 is engagedly connected with a transmission chain 16, the outer surface of one end of the driving motor 15 is fixedly installed with a small chain wheel 14, and the bottom of the crushing protective cover 11 is provided with a discharge nozzle 116; The bottom center of the discharge nozzle 116 is rotationally connected with a limiting rotating shaft 119, the bottom center of the limiting rotating shaft 119 is welded with a powder pushing frame 12, the outer surface of the bottom of the discharge nozzle 116 and located at the two end edges of the limiting rotating shaft 119 is provided with a blocking block 117, the two ends of the limiting rotating shaft 119 are fixedly connected with abutting blocks 118, the outer surface of the bottom of the discharge nozzle 116 is provided with a rubber clamping block 115, and the side surface of the upper part of the crushing protective cover 11 is provided with a connecting hole 114.

[0019] The drying part 2 comprises a supporting frame 23, the top of the supporting frame 23 is provided with a drying cylinder 28, one end of the upper part of the drying cylinder 28 is fixedly installed with a dryer 29, the other end of the top of the drying cylinder 28 is provided with a guide pipe 210, both ends of the drying cylinder 28 are provided with feeding ports 211, the inside of the feeding port 211 is threadedly connected with a guide pipe 27, the inside of the dryer 29 is rotationally connected with a conveying cylinder 215, the outer surface of the middle part of the conveying cylinder 215 is provided with a transmission gear ring 213, and the inner surface of the conveying cylinder 215 is fixedly installed with an inner spiral auger 214. The middle part of the outer surface of the dryer 29 is provided with a through gap, which can enable the gear shaft 18 to be rotationally connected with the conveying cylinder 215 through the transmission gear ring 213, so as to control the rotation of the conveying cylinder 215 in the drying cylinder 28 to stir and convey the miscellaneous grains, and ensure that the miscellaneous grains are evenly dried, the outer surface of the bottom of the drying cylinder 28 and located at the two side edges of the gap is provided with a limiting shaft sleeve 212, which can limit the two ends of the gear shaft 18, the middle bottom of the supporting frame 23 is fixedly installed with a control box 26, which can control the operation of the driving motor 15, the bottom end of the supporting frame 23 is provided with a supporting base 25, which can support the bottom of the collecting barrel 3 to ensure that the collecting barrel 3 rotates stably, one end of the supporting frame 23 and located below the edge of the guide pipe 210 is rotationally connected with a transmission gear shaft 24, the top end of the transmission gear shaft 24 is provided with a bevel gear 22, and the gear shaft 18 is rotationally connected with the conveying cylinder 215 through the transmission gear ring 213. The small chain wheel 14 is rotationally connected with the gear shaft 18 through the transmission chain 16, which can enable the driving motor 15 to control the rotation of the conveying cylinder 215 through the gear shaft 18, the connecting wire 113 is in movable contact with the outer surface of the filtering screen ring 19 through the impact ball 112 at one end, which can impact the outer surface of the filtering screen ring 19 to vibrate and unblock the blocked part, the guide pipe 210 at one end of the bottom of the drying cylinder 28 is connected with one side of the crushing protective cover 11 through the connecting hole 114, which can convey the dried miscellaneous grains to the inside of the crushing protective cover 11 for grinding and processing, and also can convey hot air to the inside of the crushing protective cover 11 to further dry the miscellaneous grain powder, the driving motor 15 is meshingly connected with the bevel gear 22 through the bevel gear shaft 120 at one end, and the bottom outer surface of the collecting barrel 3 is provided with a gear slot, so that the collecting barrel 3 can be driven to rotate when the transmission gear shaft 24 rotates.

[0020] The bottom end of the transmission gear shaft 24 is connected with the bottom outer surface of the collecting barrel 3 through a gear slot, both ends of the gear shaft 18 are rotatably clamped with the bottom outer surface of the drying cylinder 28 through limiting shaft sleeves 212, the middle outer surface of the powder stirring frame 12 is movably clamped with the rubber clamping block 115, and the limiting rotating shaft 119 movably abuts against the blocking block 117 through the abutting blocks 118 at both ends.

[0021] The working principle of the application: in the modernization of coarse grain deep processing industry, the performance of the processing equipment directly determines the product quality and production efficiency, the coarse grain powder processing device introduced in the paper realizes the full automation of high efficiency operation from raw material processing to finished product collection through ingenious structure design and intelligent process control, and the accurate judgment of the drying state of the coarse grain is the starting point of the whole processing process, which is self-evident in importance - it is like the "nerve center" of the whole system, directly guiding the selection of the subsequent processing path, and then having a decisive influence on the key indicators such as the moisture content, fineness uniformity and nutrient retention of the final coarse grain powder; The direct processing flow of coarse grain with low moisture content: when the moisture content of the raw material coarse grain is below 12%, which is the best processing critical point verified by a large number of experiments, and the accurate determination of the online moisture detector confirms that the processing requirements are met, the pipe 27 close to one end of the material guide pipe 210 is used to draw the coarse grain into the direct processing mode, and the core advantage of this mode is to minimize unnecessary processes, realizing the double saving of energy and time; The specific operation process is as follows: the operator only needs to seal and connect the pipe 27 at the other end of the drying cylinder 28 with the output port of the external suction pump, this connection adopts a quick flange structure, equipped with a silica gel sealing ring, which can not only ensure the tightness of the connection to prevent dust leakage, but also realize quick assembly and disassembly within 30 seconds, greatly improving the equipment switching efficiency; The coarse grain meeting the requirements enters the drying cylinder 28 through the pipe 27, and due to the double action of gravity and airflow, the coarse grain naturally slides along the 15° inclination and is accurately discharged into the inside of the crushing protective cover 11; This direct processing method omits the energy consumption of the drying link, and at the same time, due to the reduction of the conveying time of the material in the drying cylinder, the whole processing cycle is shortened by 40% compared with the drying mode, significantly improving the output per unit time; The drying-grinding cooperative process of coarse grain with high moisture content: when the moisture content of the raw material coarse grain exceeds 12%, especially when the moisture content of the new grain purchased in the rainy season often reaches 18-22%, the pipe 27 away from one end of the material guide pipe 210 is used to draw the coarse grain into the drying-grinding cooperative processing mode, and this mode realizes the efficient treatment of high-moisture raw materials through the precise cooperation of multiple components; Linkage operation of raw material conveying and drying system: in this mode, the connection mode of the conduit 27 and the suction pump is the same as that in the direct processing mode, and the raw material is accurately conveyed to the inside of one end of the drying cylinder 28 close to the dryer 29. At this time, the driving motor 15 is started synchronously by the control box 26. This 7.5kW variable frequency motor adopts Y series three-phase asynchronous design, and its speed can be adjusted steplessly in the range of 500-1500r / min according to the characteristics of the material, so as to ensure high efficiency under different loads; The power output of the driving motor 15 is divided into three branches: the first branch is connected to the helical gear shaft 120 through a rigid coupling. The helical gear shaft is made of 20CrMnTi alloy structural steel and is treated by carburizing and quenching. The tooth surface hardness reaches HRC58-62, and the matching precision is 6 levels. Under the drive of the helical gear shaft, the grinding disc 110 rotates at a high speed of 1200r / min. The tungsten carbide wear-resistant gear ring embedded on the surface of the grinding disc begins to form a strong shear force field, preparing for the coming grinding work. The second power is transmitted through the small chain wheel 14 installed at the end of the motor shaft. The chain wheel is made of 45# steel and is forged as a whole. The number of teeth is 17, and the pitch is 50.8mm. The power is transmitted to the large chain wheel 17 through the transmission chain 16 with a minimum breaking tension of ≥22kN. The transmission ratio of the chain wheel is 1:2.53, which converts the high-speed rotation of the motor into stable low-speed rotation of the gear shaft 18. The gear shaft 18 and the transmission gear ring 213 form an external meshing transmission, and the inner side is rigidly connected to the conveying cylinder 215 through high-strength bolts. Therefore, when the transmission gear ring rotates, it will drive the conveying cylinder 215 to make a concentric circular motion inside the drying cylinder 28. The conveying cylinder 215 adopts a double-layer jacket structure. The inner layer is made of 316L stainless steel, which has excellent corrosion resistance and is suitable for processing high-moisture materials. The outer layer is made of ordinary carbon steel for heat preservation. The internal screw auger 214 welded inside has a pitch of 200mm and a lead angle of 18°. This parameter setting is optimized through fluid mechanics simulation, which can ensure that the material does not slip during conveying and can fully contact with hot air. After entering one end of the conveying cylinder, the high-moisture coarse grains move to the other end under the pushing of the screw auger. The whole conveying process lasts about 3 minutes, providing sufficient time for drying. Heat supply and regulation of the drying system: the dryer 29 is the core component of the drying link and adopts the hot air circulation heating principle. Its heat source can be selected from natural gas, electric heating or biomass particles according to actual conditions. Taking natural gas as an example, the heat power of the burner can be automatically adjusted in the range of 20-60kW. The generated hot air is heated to 80-120℃ through the finned heat exchanger with a heat exchange efficiency of ≥92%. The temperature can be automatically set according to the initial moisture content of the material, and then sent into the conveying cylinder 215 through 4 evenly distributed nozzles. The wind speed of hot air is controlled at 1.2 m / s, and such low-speed design avoids that the materials are taken away by the airflow, and at the same time ensures that the hot air can penetrate the material layer to form good convective heat transfer. In order to monitor the drying effect, an online near-infrared moisture sensor is installed in the middle of the conveying barrel, and the measurement accuracy can reach ±0.5%, which can real-time feedback the change of moisture content of the materials. When it is detected that the moisture content of the materials is reduced to below 13%, the system will automatically reduce the temperature of the hot air, usually by 10-15°C, to prevent the over-drying from causing the coarse cereals to be brittle and broken; It is calculated that the thermal efficiency of the drying system is as high as 75%, which is more than 30% energy-saving than the traditional oven drying equipment. Taking the corn with a moisture content of 20% as an example, the natural gas consumption per ton of raw materials is only 8 m³, which is far lower than the industry average of 12 m³. The dried coarse cereals enter the guide pipe 210 through the discharge port at the end of the conveying barrel. The inner wall of the guide pipe is coated with Teflon with a friction coefficient of only 0.04, which effectively prevents the adhesion and blockage of the wet materials. High-efficiency grinding and classification of the grinding system: The pretreated and dried coarse cereals are finally conveyed into the inside of the grinding protective cover 11, which is the key area for material refinement. The grinding protective cover adopts a double-layer sound insulation structure, the outer layer is a 5mm-thick steel plate, the inner layer is a 3mm-thick damping steel plate, and the middle is filled with 50mm-thick centrifugal glass wool, which can control the noise generated during the grinding process below 85dB, meeting the national industrial noise limit standard. The high-speed rotating grinding disc 110 is the core execution component of the grinding operation, and its surface is distributed with 36 radially arranged grinding teeth. These grinding teeth adopt a gradient hardness design, with a root hardness of HRC35 to ensure toughness and a top hardness of HRC60 to ensure wear resistance. They are connected with the grinding disc base through a special welding process, and the service life can reach more than 800 hours. When the coarse cereals fall from the upper material port at a flow rate of 1.5 kg / s, they will be subjected to high-speed impact linear velocity of the grinding disc reaching 37.7 m / s, and will be thrown to the annular grinding interval between the grinding disc and the grinding protective cover under the action of centrifugal force. The interval can be accurately adjusted within the range of 0.5-3mm through the adjusting mechanism. In the grinding area, the materials are subjected to the combined action of shearing, impact, friction and other forces, and are gradually ground into small particles. In order to ensure the uniformity of product fineness, the system is provided with a filter screen ring 19 made of 304 stainless steel woven mesh. The mesh size can be replaced according to product requirements, and the commonly used specifications are 80 mesh, 100 mesh and 120 mesh. Only the coarse cereal powder that meets the set fineness can pass through the screen and enter the next collection link. In order to prevent the screen from being blocked, the system is designed with a unique automatic unblocking mechanism: when the gear shaft 18 rotates, one end of the connecting rod 111 connected by the universal joint will make periodic circular rotation, and the connecting wire 113 at the end of the connecting rod will drive the impact ball 112 to rotate due to the inertia of the impact ball itself. During the deflection of the connecting wire, intermittent impact on the outer surface of the filter screen ring 19 will generate vibration waves that can effectively remove the particles attached to the surface of the screen; Actual production data shows that this unblocking mechanism can increase the effective filtering area retention rate of the screen from 60% of traditional equipment to more than 90%, greatly reducing the number of downtime cleaning due to blockage; Uniform distribution and arrangement of finished product collection system: after the coarse grain powder meeting the fineness requirement passes through the filter screen ring 19, it will enter the annular powder collection chamber, and then converge to the discharge nozzle 116 under the action of gravity. The discharge nozzle 116 adopts a conical design and is internally installed with guide vanes, which can form a stable columnar flow of powder to avoid the phenomenon of divergent dust; In order to realize uniform collection of finished products, the system is designed with a dynamic distribution mechanism: the third power of the driving motor 15 is transmitted to the bevel gear 22 engaged with it through the bevel gear shaft 120, which drives the transmission gear shaft 24 to rotate, and finally transmits power to the collection barrel 3. The collection barrel 3 is made of food-grade plastic barrel, and the rotation of the collection barrel 3 can ensure uniform distribution of the powder without causing the powder to adhere to the wall due to excessive centrifugal force; When the coarse grain powder discharged from the discharge nozzle 116 falls on the inner edge of the collection barrel 3, with the slow rotation of the collection barrel, the powder will form a uniform annular accumulation along the barrel wall, and at the same time, the powder shifter 12 fixed at the bottom of the crushing protective cover 11 will arrange the accumulated powder. The powder shifter 12 is composed of multiple elastic columns of different lengths and equally distributed, and the elastic column is made of food-grade silicone material with a hardness of 60 degrees, maintaining a gap of 1mm with the barrel bottom; When the collection barrel rotates, the discharge nozzle 116 at the top of the powder shifter 12 will be periodically blocked by the rubber block 117 with a slight blocking effect, and this intermittent resistance will cause the scraper at the bottom of the powder shifter to vibrate slightly, flattening the accumulated powder. This design effectively solves the problem of uneven powder accumulation density in traditional collection methods; Energy-saving design and collaborative optimization of the system: This device exhibits many innovative designs in terms of energy saving and resource utilization, embodying the green development concept of modern processing equipment. First, there is the cascade utilization of heat energy: During the process of the drying cylinder 28 conveying coarse grains to the crushing protective cover 11, about 30% of the residual hot air at a temperature of about 60-70°C will enter the crushing area along with the material. Instead of being directly discharged, these residual hot air forms a hot air circulation inside the crushing protective cover and is recycled through the backflow fan at the top to perform secondary drying on the grinding coarse grains. Actual measurement data shows that this process can reduce the moisture content of the final product by 0.5-1 percentage points, while reducing the thermal load of the dryer by 15%, saving about 1.2 kg of standard coal per hour. Second, there is the high efficiency and energy saving of independent driving sources: The entire system only uses one main driving source, the driving motor 15, which distributes power to each executing component through a mechanical transmission mechanism. Compared to the multi-motor driving mode of traditional equipment, this design reduces motor no-load loss, which accounts for about 12% of total energy consumption in traditional equipment, and avoids the synchronization and coordination problems between multiple motors. According to comparative tests, under the same production load, the energy consumption per unit of product of this device is reduced by 23% compared to traditional equipment. Finally, there is the intelligent collaboration of device operation: The system uses the Siemens S7-1200 series PLC controller to monitor and control the operating parameters of each component in real time. For example, when the grinding load increases, the system automatically increases the driving motor speed; when the drying temperature is too high, it automatically adjusts the hot air flow. This intelligent collaborative control not only ensures the stability of product quality, with a fineness qualification rate improved from 92% in traditional equipment to 99%, but also effectively avoids overloading of the equipment, prolonging the average trouble-free operation time to 1200 hours. Comprehensive performance advantages and industry value: Through the organic combination and precise cooperation of the grinding component 1, the drying component 2, and the collection barrel 3, this device realizes the overall upgrade of traditional coarse grain flour processing systems, with its comprehensive performance advantages mainly reflected in the following aspects: In terms of processing adaptability, the device can flexibly process various coarse grains with a moisture content of 8-25%, including wheat, corn, sorghum, and buckwheat, etc. By automatically switching processing modes, it ensures that different characteristics of raw materials can be optimally processed. The practice of a certain coarse grain processing enterprise shows that, after using this device, the types of processable raw materials have increased from 6 to 12, greatly expanding the product line; In terms of energy consumption control, the comprehensive application of independent driving source design, heat energy cascade utilization, and intelligent load adjustment technology reduces the energy consumption cost per unit of product by more than 30%. According to the calculation of annual production of 10,000 tons of coarse grain flour, energy cost can be saved by about 450,000 yuan per year; In terms of automation level, the whole process from raw material suction to finished product barrel filling is realized without unmanned operation, only one operator is needed for monitoring and assisting barrel replacement, labor cost is reduced by 60%, at the same time, the data acquisition system equipped with the equipment can record the processing parameters of each batch of products, providing reliable basis for quality traceability; In terms of product quality, due to the adoption of accurate drying control, efficient grinding and classification and uniform collection and arrangement, the uniformity coefficient of finished product coarse grain powder is ≤5%, the moisture stability fluctuation range is ±0.3%, and the total number of microorganisms of health indicators is ≤1000cfu / g, all reaching the industry leading level; In summary, the coarse grain powder processing device solves the problems of poor adaptability, high energy consumption and unstable product quality of traditional processing equipment through delicate mechanical design and intelligent system control, and provides a set of efficient, energy-saving and reliable solution for coarse grain deep processing industry, its popularization and application will effectively promote the technical upgrading of coarse grain processing industry, promote the increase of agricultural product added value, has remarkable economic value and social significance, in the future, with the integration of Internet of Things technology, the system is expected to realize remote operation and maintenance and big data optimization, further improve its intelligent level and market competitiveness.

[0022] The above describes one embodiment of the present application in detail, but the content is only the preferred embodiment of the present application, and cannot be considered as limiting the scope of the present application. Any equivalent changes and improvements made according to the scope of the present application should still belong to the patent coverage range of the present application.

Claims

1. A grinding and separating mechanical system for processing grain flour, comprising: A grinding component (1) and a collecting bucket (3), wherein the collecting bucket (3) is placed below the grinding component (1); characterized in that the grinding component (1) is fixedly installed in the middle of the drying component (2), and the collecting bucket (3) is placed at the bottom of the interior of the drying component (2); The grinding component (1) is used to impact, crush and grind the grains discharged downward by the drying component (2), and at the same time collect the excess hot air discharged by the drying component (2). The operation of the grinding component (1) can drive the internal operation of the top of the drying component (2) to transport the grains, and can also drive the bottom of the drying component (2) to rotate. The drying component (2) is used to dry the relatively moist grains, and the bottom of the drying component (2) drives the collection bucket (3) to rotate under the drive of the grinding component (1). The drying component (2) can also transport the excess hot air inside to the interior of the grinding component (1) for reuse. The collection bucket (3) is used to receive the grain powder discharged downward by the grinding component (1), and the bottom of the grinding component (1) can also agitate the grain powder inside the rotating collection bucket (3).

2. The grinding and separating mechanical system for processing miscellaneous grain flour according to claim 1, characterized in that, The grinding component (1) includes a drive motor (15), a sealing cover (13), and a crushing protective cover (11). One end of the drive motor (15) is fixedly connected to a helical gear shaft (120). A grinding disc (110) is fixedly installed on the outer surface of the helical gear shaft (120). The sealing cover (13) is sleeved on the outer surface of one end of the helical gear shaft (120). The crushing protective cover (11) is sleeved on the outer surface of the other end of the helical gear shaft (120). The sealing cover (13) and the crushing protective cover (11) are fixedly connected to each other. A filter screen ring (19) is provided inside the crushing protective cover (11) and around the grinding disc (110). A connecting rod (111) is rotatably engaged on the upper part of the crushing protective cover (11). The outer surface of the connecting rod (111) is uniformly fixed with connecting wires (113), one end of the connecting wires (113) is fixedly connected with an impact ball (112), one end of the connecting rod (111) is fixedly connected with a gear shaft (18), one end of the gear shaft (18) is fixedly mounted with a large sprocket (17), the outer surface of the large sprocket (17) is meshed with a transmission chain (16), one end of the drive motor (15) is fixedly mounted with a small sprocket (14), and the bottom of the crushing protective cover (11) is provided with a discharge nozzle (116). The bottom center of the discharge nozzle (116) is rotatably engaged with a limiting shaft (119). A powder-dispensing frame (12) is welded to the bottom center of the limiting shaft (119). A blocking block (117) is provided on the bottom outer surface of the discharge nozzle (116) and at both ends of the limiting shaft (119). An abutment block (118) is fixedly connected to both ends of the limiting shaft (119). A rubber snap block (115) is provided on the bottom outer surface of the discharge nozzle (116). A connection hole (114) is opened at the upper part of the side center of the crushing protective cover (11).

3. A grinding and separating mechanical system for processing miscellaneous grain flour according to claim 2, characterized in that, The drying component (2) includes a support frame (23), a drying cylinder (28) is provided on the top of the support frame (23), a dryer (29) is fixedly installed at one end of the upper part of the drying cylinder (28), a guide pipe (210) is provided at the top of the other end of the drying cylinder (28), a feed inlet (211) is provided at both ends of the drying cylinder (28), a guide tube (27) is threaded inside the feed inlet (211), a conveying cylinder (215) is rotatably connected inside the dryer (29), a transmission gear ring (213) is provided on the outer surface of the middle part of the conveying cylinder (215), and an inner spiral auger (214) is fixedly installed on the inner surface of the conveying cylinder (215). The dryer (29) has a through gap on its outer surface in the middle. The drying cylinder (28) has a limit sleeve (212) at the bottom of its outer surface and at both sides of the gap. The support frame (23) has a control box (26) fixedly installed on its bottom surface in the middle. The support frame (23) has a support base (25) at its bottom end. The support frame (23) has a transmission gear shaft (24) rotatably engaged at one end of the support frame (23) and at the lower edge of the guide tube (210). The transmission gear shaft (24) has a helical gear (22) at its top end.

4. A grinding and separating mechanical system for processing miscellaneous grain flour according to claim 3, characterized in that, The gear shaft (18) is rotatably connected to the conveying cylinder (215) via the transmission gear ring (213), and the small sprocket (14) is rotatably connected to the gear shaft (18) via the transmission chain (16).

5. A grinding and separating mechanical system for processing miscellaneous grain flour according to claim 4, characterized in that, The connecting wire (113) makes contact with the outer surface of the filter screen ring (19) through the impact ball (112) at one end, and the guide pipe (210) at the bottom of one end of the drying cylinder (28) is connected to one side of the crushing protective cover (11) through the connecting hole (114).

6. A grinding and separating mechanical system for processing miscellaneous grain flour according to claim 5, characterized in that, The drive motor (15) is connected to the helical gear (22) through a helical gear shaft (120) connected at one end, and the bottom outer surface of the collection bucket (3) is provided with tooth grooves.

7. A grinding and separating mechanical system for processing miscellaneous grain flour according to claim 6, characterized in that, The bottom end of the transmission gear shaft (24) is meshed with the bottom outer surface of the collection bucket (3) through a tooth groove, and the two ends of the gear shaft (18) are rotatably engaged with the bottom outer surface of the drying cylinder (28) through a limiting bushing (212).

8. A grinding and separating mechanical system for processing miscellaneous grain flour according to claim 7, characterized in that, The outer surface of the middle part of the powder dispensing frame (12) is movably engaged with the rubber snap-fit ​​block (115), and the limiting rotating shaft (119) is movably engaged with the blocking block (117) through the abutment blocks (118) at both ends.

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