Continuous powder material jet crushing and molten liquid material mixing and curing system

Abstract

The invention discloses a continuous powder material jet crushing and molten liquid material mixing and curing system, and belongs to the technical field of preparation of new materials for curing and combining high-molecular organic matters and inorganic matters. The powder material storage bin is connected with an outlet of the vacuum feeding machine; an outlet of the powder material storage bin is fixedly connected with a feeding rotary valve, a bidirectional micro-powder crusher and a double-helix feeding machine through flanges in sequence; the high-speed airflow jet pulverizator comprises an incidence pipe, a jet nozzle, a mixing pipe, a throat pipe and a diffusion pipe which are sequentially connected, a mixing cavity arranged in a contracted shape is formed in the mixing pipe, and an injection pipe communicated with the mixing cavity is arranged on the mixing pipe; a mixing curing chamber; the inlets of the atomization spraying nozzles are connected with the discharging opening of the diffusion pipe, and the atomization openings of the atomization spraying nozzles are connected with the mixing curing chamber; the atomization spraying nozzle is provided with a Venturi structure cavity. Multi-component materials can be continuously fed into a mixing and curing system, the preparation speed is high, and the efficiency is high.

Description

Technical Field

[0001] The present invention belongs to the technical field of preparation of new materials by solidifying and combining polymer organic substances and inorganic substances, and particularly relates to a continuous powder material jet pulverization and molten liquid material mixing and solidifying system. Background Art

[0002] The solidifying and combining of organic substances and inorganic substances to prepare new materials has broad prospects in many industries such as petroleum, chemical industry, and materials. In traditional technological processes, for the process of mixing multiple materials, mechanical stirring is mostly used, which cannot form a stable dispersion effect and cannot ensure the consistency of component ratios. In the current industry situation, there are often layering phenomena after solidifying and combining, which damage the material effect. By adding a liquid solvent, although some problems of component ratio consistency can be solved, the power consumption is high, and since additional chemical components are added, subsequent technological processes such as separation and evaporation need to be added, and the precision requirement for industrial parameter control is too high, and many problems such as quality modification are likely to occur. Currently, many industries have high requirements for product quality stability, cost consistency, and effect advancement.

[0003] Therefore, there is an urgent need for a mixing and solidifying combination system that can greatly improve product performance, reduce costs, and enable emerging materials to have the best industrial consistency. Summary of the Invention

[0004] In order to provide a mixing and solidifying combination system that can greatly improve product performance, reduce costs, and enable emerging materials to have the best industrial consistency, the present invention adopts the following technical solutions:

[0005] A continuous powder material jet pulverization and molten liquid material mixing and solidifying system, comprising:

[0006] A vacuum feeding machine;

[0007] A powder material storage bin connected to the outlet of the vacuum feeding machine;

[0008] The outlet of the powder material storage bin is fixedly connected in sequence by a flange to a feeding rotary valve, a two-way fine powder crusher, and a double-screw feeder;

[0009] A high-speed air jet pulverizer, the high-speed air jet pulverizer includes an incident tube, a nozzle, a mixing tube, a throat tube, and a diffuser tube connected in sequence. A mixing cavity is arranged in a contracting shape in the mixing tube. An injection tube communicating with the mixing cavity is arranged on the mixing tube. The injection port of the injection tube is flexibly connected to the outlet of the double-screw feeder. The diffuser tube has a diffuser cavity in a gradually expanding shape. A pressurizing interface communicating with the diffuser cavity is arranged on the diffuser tube. The diffuser tube is the discharge port;

[0010] A mixing and solidifying chamber;

[0011] A plurality of atomizing spray nozzles, and the plurality of atomizing spray nozzles are arranged uniformly along the circumferential direction of the mixing and curing chamber; the inlet of the atomizing spray nozzle is connected to the discharge port of the diffuser pipe, and the atomizing port of the atomizing spray nozzle is connected to the mixing and curing chamber through a flange; the atomizing spray nozzle has a Venturi-structured cavity;

[0012] Wherein, the high-speed gas jet pulverizer uses a pressure gas source as the incident fluid gas source, successively passes through the incident pipe and the nozzle, forms a negative pressure in the mixing chamber, sucks in particulate powder material as the entrained fluid through the entrainment pipe, enters the throat pipe at high speed after uniform mixing, forms a collision and performs primary pulverization; then the mixed fluid enters the diffuser pipe, the pressure rises, and compressed air is injected through the pressure boosting interface on the diffuser pipe to locally boost the pressure, and a stable eddy current is formed after boosting and secondary crushing is performed; after crushing, the mixed fluid is transported to the inlet of the atomizing spray nozzle through a conveying pipeline; the liquid inlet of the atomizing spray nozzle uses molten liquid material as the incident fluid, forms a negative pressure at the nozzle, sucks in the gas in the chamber, forms a gas-liquid spray with uniform droplets, or uses high-pressure compressed air as the incident fluid gas source, forms a negative pressure inside the nozzle, sucks in the molten liquid material, forms a gas-liquid spray with uniform droplets, and enters the mixing and curing chamber at high speed, mixes and cures with the mixed fluid to form uniformly and tightly combined multi-component powder particles, and then enters the particle collection bin for collection.

[0013] Furthermore, a cam rotor transfer pump and a liquid material storage bin are further included. The liquid inlet of the atomizing spray nozzle is connected to the output end of the cam rotor transfer pump, the input end of the cam rotor transfer pump is connected to the liquid outlet of the liquid material storage bin, the liquid material storage bin is used for placing molten liquid material, and the molten liquid material includes molten high molecular organic matter and molten metal; the molten high molecular organic matter includes one or several of natural rubber, Eucommia rubber, styrene-butadiene rubber, dandelion rubber and cis-butadiene rubber.

[0014] Furthermore, the molten liquid material to be configured is manually added into the liquid material storage bin and transported to the cam rotor transfer pump through a rotary valve; after the liquid material storage bin reaches the specified temperature, the cam rotor transfer pump is started to transport the dense molten liquid material into the atomizing spray nozzle, and the connecting pipeline has electric tracing to make the material fill the pipeline densely and uniformly.

[0015] Furthermore, the mixing and curing chamber is of the static high-temperature applicable type and is internally provided with an anti-adhesion coating.

[0016] Further, the two-way micropowder crusher includes a sleeve, an inner crushing cylinder and an outer crushing cylinder rotatably arranged inside the sleeve. The outer crushing cylinder is sleeved outside the inner crushing cylinder, and the inner crushing cylinder and the outer crushing cylinder rotate in opposite directions.

[0017] Further, it also includes: a feeding fan and a material suction device. Among them, the feeding fan provides kinetic energy for the powder material to be pulverized, and the feeding fan sucks the powder material to be pulverized into the vacuum feeder through the material suction device and the material suction pipeline; the vacuum feeder sends the powder material into the powder material storage bin through the feeding pipeline;

[0018] A level gauge is arranged on the powder material storage bin to detect the materials in the bin.

[0019] Further, the double-screw feeder is located at the outlet of the powder material storage bin. The double-screw feeder adopts an inlaid double-screw structure, uses gears for transmission, and the control method is the weight-loss metering method. By collecting the weight loss per unit time, the feeding rate of the double-screw feeder is calculated, and the actual feeding rate is compared with the set target feeding rate, so as to feedback control and adjust the discharge amount of the double-screw feeder, and provide the required material amount for the continuous conveying and continuous pulverization of the powder material;

[0020] A bin weighing system linked with the double-screw feeder for weight accuracy control is equipped on the bracket at the bottom of the powder material storage bin.

[0021] Further, the pressure gas source is pressure gas or high-pressure compressed gas not lower than 0.5 MPa.

[0022] Beneficial effects:

[0023] 1. A continuous powder material jet pulverization and molten liquid material mixing and solidification system provided by the present invention is a continuous non-stop multi-component material mixing and solidification system. Multi-component materials can be continuously put into the mixing and solidification system for continuous mixing, with fast preparation speed and high efficiency.

[0024] 2. A continuous powder material jet pulverization and molten liquid material mixing and solidification system provided by the present invention integrates the pulverization and transportation of powder materials. Through the primary jet mixing and secondary local pressurization crushing of the high-speed air flow jet pulverizer, high-efficiency pulverization of materials can be realized, enabling the materials to be quickly pulverized during the transportation process. While improving efficiency, the number of equipment and operation and maintenance costs are reduced, and energy consumption is also greatly reduced.

[0025] 3. A continuous powder material jet milling and molten liquid material mixing and solidifying system provided by the present invention integrates the atomization and transportation of the molten liquid material. By means of an atomizing injection nozzle, a gas-liquid spray with uniform droplets can be formed, enabling subsequent uniform mixing and solidification preparation.

[0026] 4. A continuous powder material jet milling and molten liquid material mixing and solidifying system provided by the present invention has a remote transportation function. According to the actual working conditions, the solidified and combined granular materials can be directly transported to the terminal position, reducing the production links, reducing the number of equipment, and improving the working efficiency.

[0027] 5. A continuous powder material jet milling and molten liquid material mixing and solidifying system provided by the present invention eliminates the classification device, reduces the number of motors, lowers the energy consumption of the system equipment, and reduces the operating cost. Description of the Drawings

[0028] Figure 1 is the overall structural schematic diagram of a continuous powder material jet milling and molten liquid material mixing and solidifying system of the present invention;

[0029] Figure 2 is the structural schematic diagram of the atomizing injection nozzle of a continuous powder material jet milling and molten liquid material mixing and solidifying system of the present invention;

[0030] Figure 3 is the structural schematic diagram of the high-speed jet crusher;

[0031] Figure 4 is the structural schematic diagram of the two-way fine powder crusher;

[0032] Figure 5 is the structural schematic diagram of the inner crushing cylinder;

[0033] Figure 6 is the structural schematic diagram of the outer crushing cylinder;

[0034] In the figure: 1. Loading fan; 2. Powder material storage bin; 3. Vacuum loader; 4. Suction feeder; 5. Rotary valve; 6. Double-direction fine powder crusher; 6-1. Motor; 6-2. Transmission structure; 6-3. Base; 6-4. Cylinder sleeve; 6-5. Feed pipe; 6-6. Inner crushing cylinder; 6-7. Outer crushing cylinder; 6-8. Collection bin discharge pipe; 6-9. Shaft seal; 6-10. Water cooling system; 7. Double-screw feeder; 8. Roots blower; 9. Weighing sensor; 10. High-speed air flow jet mill; 10-1. Inlet pipe; 10-2. Nozzle; 10-3. Mixing pipe; 10-4. Throat pipe; 10-5. Diffuser pipe; 10-6. Front pressure transmitter interface; 10-7. Ejector pipe; 10-8. Vacuum pressure transmitter interface; 10-9. Boosting interface; 10-10. Rear pressure transmitter interface; 11. Quick pneumatic valve for discharging; 12. Atomizing injection nozzle; 12-1. Inlet; 12-2. Nozzle; 12-3. Heating jacket; 12-4. Liquid inlet; 12-5. Atomizing port; 13. Mixing and curing chamber; 14. Particle collection bin; 15. Cam rotor transfer pump; 16. Liquid material storage bin. Detailed implementation mode

[0035] Embodiment 1

[0036] Reference Figure 1 - Figure 6 , a continuous powder material jet milling and molten liquid material mixing and curing system, comprising:

[0037] Vacuum loader 3;

[0038] Powder material storage bin 2 connected to the outlet of vacuum loader 3;

[0039] The outlet of powder material storage bin 2 is fixedly connected to feeding rotary valve 5, double-direction fine powder crusher 6 and double-screw feeder 7 in sequence by flanges, and double-screw feeder 7 is an inlaid precision metering double-screw feeder;

[0040] High-speed air flow jet mill 10, which includes an inlet pipe 10-1, a nozzle 10-2, a mixing pipe 10-3, a throat pipe 10-4 and a diffuser pipe 10-5 connected in sequence. The mixing pipe 10-3 has a mixing cavity arranged in a contracted shape, and an ejector pipe 10-7 communicating with the mixing cavity is arranged on the mixing pipe 10-3. The diffuser pipe 10-5 has a straight cavity and a diffusing cavity in a gradually expanding shape. Among them, the straight cavity is located on one side of the throat pipe 10-4, and a boosting interface 10-9 communicating with the diffusing cavity is arranged on the straight cavity section of the diffuser pipe 10-5. The diffuser pipe 10-5 is the discharge port, and the ejector port of the ejector pipe 10-7 is flexibly connected to the outlet of double-screw feeder 7;

[0041] Mixing and curing chamber 13;

[0042] A plurality of atomizing spray nozzles 12 are arranged circumferentially and uniformly around the mixing and curing chamber 13; the inlet 12-1 of the atomizing spray nozzle 12 is connected to the discharge port of the diffusion pipe, and the atomizing port 12-5 of the atomizing spray nozzle 12 is connected to the mixing and curing chamber 13 through a flange; the atomizing spray nozzle 12 has a Venturi structure cavity;

[0043] Among them, the high-speed air flow jet mill 10 uses a pressure air source as the incident fluid air source, successively passes through the incident pipe 10-1 and the nozzle 10-2, forms a negative pressure in the mixing chamber, sucks in particulate powder materials as the entrained fluid through the entrainment pipe 10-1, enters the throat pipe 10-4 at high speed after uniform mixing, forms collisions and performs primary crushing; then the mixed fluid enters the diffusion pipe 10-5, the pressure rises, and compressed air is injected through the pressure boosting interface on the diffusion pipe 10-5 to locally boost the pressure, and a stable eddy current is formed after boosting and secondary crushing is performed; after crushing, the mixed fluid is transported through the pipeline to the inlet of the atomizing spray nozzle 12;

[0044] The atomizing spray nozzle 12 uses molten liquid material as the incident fluid, forms a negative pressure at the nozzle, sucks in the indoor gas, forms a gas-liquid spray with uniform droplets, or uses high-pressure compressed air as the incident fluid air source, forms a negative pressure inside the nozzle, sucks in high-viscosity molten liquid material, forms a gas-liquid spray with uniform droplets, and enters the mixing and curing chamber 13 at high speed, mixes and cures with the mixed fluid to form uniform and tightly combined multi-component powder particles, and then enters the particle collection bin 14 for collection.

[0045] Specifically, the nozzle 12-2 of the atomizing spray nozzle 12 has a Venturi structure cavity; the nozzle 12-2 is in a contracted shape, the straight section of the large diameter end of the cavity of the nozzle 12-2 is communicated with the inlet 12-1, and the middle of the contracted section of the cavity of the nozzle 12-2 is communicated with the liquid inlet 12-4; a heating jacket 12-3 is arranged outside the nozzle 12-2 of the atomizing spray nozzle 12; the heating jacket 12-3 of the nozzle 12-2 has an electric heating function, and the temperature range is 100-300°C.

[0046] The atomizing spray nozzle provided in this embodiment adopts the Venturi principle. The first usage method is: using molten liquid material as the incident fluid, forming a negative pressure at the nozzle, sucking in the indoor gas, forming a uniformly mixed spray, and entering the mixing and curing chamber at high speed.

[0047] Specifically, this embodiment provides a continuous powder material jet milling and molten liquid material mixing and solidifying system, which further includes a cam rotor transfer pump 15 and a liquid material storage bin 16. The liquid inlet of the atomizing injection nozzle 12 is connected to the output end of the cam rotor transfer pump 15, and the input end of the cam rotor transfer pump 15 is connected to the liquid outlet of the liquid material storage bin 16. The liquid material storage bin 16 is used to store molten liquid materials, and the molten liquid materials include molten high molecular organics and molten metals; the molten high molecular organics include one or more of natural rubber, eucommia rubber, styrene-butadiene rubber, dandelion rubber, and cis-butadiene rubber.

[0048] Among them, the molten liquid material to be configured is manually added into the liquid material storage bin 16 and transported to the cam rotor transfer pump 15 through a rotary valve; after the liquid material storage bin 16 reaches the specified temperature, the cam rotor transfer pump 15 is started to transport the dense molten liquid material into the atomizing injection nozzle 12, and the connecting pipeline is equipped with electric tracing to make the material fill the pipeline densely, uniformly and compactly.

[0049] Specifically, the mixing and solidifying chamber 13 is of the static high-temperature applicable type and is internally provided with an anti-adhesion coating; the micro-nano powder material airflow and the atomized molten liquid material are fully mixed, collided and adhered in the mixing and solidifying chamber 13, and are solidified to form uniform and tightly combined multi-component powder particles, which then enter the particle collection bin 14 for collection.

[0050] More specifically, the cam rotor transfer pump 15 is preferably a high-temperature type cam rotor transfer pump.

[0051] Among them, the central inlet of the atomizing injection nozzle 12 is connected to the outlet of the cam rotor transfer pump 15, and the atomizing outlet part of the atomizing injection nozzle 12 is connected to the mixing and solidifying chamber 13 through flange inlay, so as to provide a stable and homogeneous liquid material spray for mixing with the micro-nano powder material.

[0052] Specifically, the atomizing outlet of the atomizing injection nozzle 12 is built into the mixing and solidifying chamber 13; after the micro-nano powder material and the molten liquid material are cooled and solidified by low-temperature gas and combined, the airflow is transported to the outlet of the mixing and solidifying chamber 13 and connected to the multi-component powder particle collection bin 14 with a dust collector for collection.

[0053] The second usage mode is: using high-pressure compressed air as the incident fluid gas source, a negative pressure is formed at the nozzle to suck the molten liquid material, and a uniform mixed spray can also be formed. This solution is especially suitable for high-viscosity molten liquid materials.

[0054] In the second usage mode, the central inlet of the atomizing injection nozzle 12 is connected to the compressed air pipeline, and the outer ring liquid inlet of the atomizing injection nozzle 12 is connected to the cam rotor transfer pump 15.

[0055] In this embodiment, a plurality of atomizing spray nozzles 12 are evenly arranged circumferentially around the mixing and curing chamber to ensure uniform mixing in all directions within the curing chamber;

[0056] According to the different ratio requirements of the final multi-component powder particles, axial multi-group atomizing spray nozzles 12 can also be arranged.

[0057] In this embodiment, the high-speed air flow jet mill 10 adopts the Venturi principle and uses a pressure gas source as the incident fluid gas source to achieve two-stage crushing of primary crushing and secondary crushing; among them, a front pressure transmitter interface 10-6 is provided on the incident pipe 10-1, a vacuum pressure transmitter interface 10-8 is provided on the mixing pipe 10-3, and a rear pressure transmitter interface 10-10 is provided on the gradually expanding cavity section of the diffuser pipe 10-5.

[0058] In this embodiment, the two-way fine powder crusher 6 includes a sleeve, an inner crushing cylinder and an outer crushing cylinder rotatably arranged in the sleeve. The outer crushing cylinder is sleeved outside the inner crushing cylinder, and the inner crushing cylinder and the outer crushing cylinder rotate in opposite directions; the two-way fine powder crusher 6 further includes: a motor 6-1, a transmission structure 6-2 and a base 6-3. The motor 6-1 and the transmission structure 6-2 are installed on the base 6-3. Among them, the input end of the transmission structure 6-2 is drivingly connected to the output end of the motor 6-1. The transmission structure 6-2 includes a first bevel gear and a second bevel gear arranged oppositely, and a third bevel gear meshing with the first bevel gear and the second bevel gear at the same time. The first bevel gear is fixedly installed on the input shaft of the transmission structure 6-2, and this input shaft passes through the central hole of the second bevel gear and is fixedly connected to the inner crushing cylinder. The second bevel gear is connected to the output shaft, and this output shaft is fixedly connected to the outer crushing cylinder. The input shaft and the outer crushing cylinder are connected through a shaft seal 6-9. The output shaft and the connecting flange located outside the sleeve are connected through a shaft seal 6-9. A feed pipe 6-5 is provided at the upper part of one end of the sleeve close to the motor 6-1, and a collecting bin discharge pipe 6-8 is provided at the other end far from the motor 6-1. A cooling pipeline is provided on the inner wall of the sleeve, and the cooling pipeline and the shaft seal part are connected to the water cooling system to cool down the transmission mechanism 6-2 and greatly increase the system life.

[0059] The working principle of the two-way micropowder crusher 6 is as follows: After the granular material is conveyed into the two-way micropowder crusher 6 through the manual gate valve, the granular material undergoes rotational centrifugal motion under the centrifugal action of the rotating inner crushing cylinder and the outer crushing cylinder. Due to different centrifugal forces affected by mass, different moving speeds are generated. The large particles are affected by the centripetal force and the movement radius expands, and are broken by the collision and shearing of the cylinder sleeve, the collision and shearing of the outer wall of the outer crushing cylinder, and the particle collision between the cylinder sleeve and the rotating outer wall of the outer crushing cylinder; the small particles have a contracted movement radius, enter the middle layer after passing through the flow channel on the rotating outer crushing cylinder, and are broken by the collision and shearing of the inner wall of the outer crushing cylinder, the collision and shearing of the outer wall of the inner crushing cylinder, and the particle collision between the rotating inner wall of the outer crushing cylinder and the outer wall of the inner crushing cylinder; when the granular material is crushed to the micron level, it enters the inner layer after passing through the flow channel on the rotating inner crushing cylinder, and is sucked by the negative pressure source on the side of the discharge pipe of the collection bin (the near-vacuum negative pressure generated by the high-speed air jet pulverizer) and enters the discharge pipe of the collection bin located at the center of the outlet end of the cylinder sleeve, and is then conveyed to the double-screw feeder 7.

[0060] The continuous powder material jet pulverization and molten liquid material mixing and solidification system provided in this embodiment further includes: a feeding fan 1 and a suction device 4. Among them, the feeding fan 1 provides kinetic energy for the powder material to be pulverized. The feeding fan 1 sucks the powder material to be pulverized into the vacuum feeder 3 through the suction device 4 and the suction pipeline; the vacuum feeder 3 sends the powder material into the powder material storage bin 2 through the feeding pipeline;

[0061] A level gauge is provided on the powder material storage bin 2 to detect the material in the bin; when a high level is detected, the feeding stops.

[0062] In this embodiment, the double-screw feeder 7 is located at the outlet of the powder material storage bin 2. The double-screw feeder 7 adopts an embedded double-screw structure, uses gears for transmission, and the control method is the loss-in-weight metering method. By collecting the weight loss per unit time, the feeding rate of the double-screw feeder 7 is calculated, and the actual feeding rate is compared with the set target feeding rate, so as to feedback control and adjust the discharge amount of the double-screw feeder 7, and provide the required material amount for the continuous conveying and continuous pulverization of the powder material;

[0063] A bin weighing system that is linked with the double-screw feeder 7 for weight accuracy control is installed on the bracket at the bottom of the powder material storage bin 2.

[0064] In this embodiment, the pressure gas source is the pressure gas provided by the Roots blower 8 or a high-pressure compressed gas not less than 0.5 MPa.

[0065] The continuous powder material jet milling and molten liquid material mixing and solidifying system provided by this embodiment can forcibly disperse and uniformly mix the powder material and the molten liquid material atomized and injected through the air jet nozzle, and quickly cool the mixed material through the room-temperature gas for transporting the powder material, so as to solidify and form multi-component powder particles that are uniform and tightly combined. At the same time, the millimeter-level powder material raw material is pulverized to the micro-nano level for preparation. This system is a combined mixing and solidifying system integrating continuous feeding, long-distance transportation, ultrafine grinding, forced dispersion, uniform mixing, and collection of multi-component materials. Since the system adopts a continuous mixing and solidifying method, multi-component materials are uniformly mixed in the solidifying mixing chamber through the air jet method respectively, which improves the product quality while reducing the equipment cost and operation cost, and also reduces the production energy consumption.

[0066] Embodiment 2

[0067] This embodiment is further set on the basis of the continuous powder material jet milling and molten liquid material mixing and solidifying system provided in Embodiment 1.

[0068] A continuous powder material jet milling and molten liquid material mixing and solidifying system includes that a suction feeder 4 is connected to the inlet of a vacuum loader 3 through a suction pipeline; the vacuum loader 3 is connected to the feed inlet of a powder material storage bin 2 through a feeding pipeline; a mechanical arch-breaking device and multiple groups of pneumatic arch-breaking devices are installed on the inner side wall of the conical barrel of the powder material storage bin 2; multiple groups of pneumatic arch-breaking devices are connected to a high-pressure air source;

[0069] Between the outer wall of the powder material storage bin 2 and the bin support legs, a weighing sensor 9 is installed, and multiple groups of level gauges are equipped on the outer wall of the storage bin;

[0070] The outlet of the powder material storage bin 2 is sequentially connected to a rotary valve 5, a two-way fine powder crusher 6, and a double-screw feeder 7; the outlet of the double-screw feeder 7 is connected to the inlet of a quick-opening pneumatic valve 11 through a flexible connection, and the outlet of the quick-opening pneumatic valve 11 is connected to the feed inlet of a high-speed air jet mill 10. The air outlet of a Roots blower 8 is connected to the working fluid inlet of the high-speed air jet mill 10 through a pipeline, and the outlet of the high-speed air jet mill 10 is connected to the powder material inlet of a mixing and solidifying chamber 13 through a conveying pipeline;

[0071] On the other hand, it includes that a liquid material storage bin 16 is connected to a cam rotor pump 15 to control the start and stop of the pump by temperature; the outlet of the cam rotor pump 15 is connected to an atomizing injection nozzle 12 and is embedded on the mixing and solidifying chamber 13; the mixed particle material outlet of the mixing and solidifying chamber 13 is connected to a particle collection bin 14 with a dust removal fan for final collection; among them, the cam rotor pump 15 is preferably a high-temperature type cam rotor pump.

[0072] Specifically, the powder material to be pulverized utilizes the kinetic energy provided by the feeding blower 1 and is sucked into the vacuum feeder 3 through the suction pipeline via the material suction device 4; the vacuum feeder 3 sends the powder material into the powder material storage bin 2 through the feeding pipeline; the level gauge installed on the powder material storage bin 2 detects the material in the bin, and stops feeding when a high level is detected.

[0073] The Roots blower 8 serves as the power source for the conveying and pulverizing system, providing sufficient power for the continuous powder material jet pulverization and molten liquid material mixing and solidification system; after the Roots blower 8 is started, the system automatically detects the state of the working flow field in the high-speed gas flow jet pulverizer 10, and opens the fast pneumatic valve 11 for discharging materials when the requirements for system operation are met;

[0074] The double-screw feeder 7 sends the powder material in the powder material storage bin 2 into the mass transfer cavity of the high-speed gas flow jet pulverizer 10 through the fast pneumatic valve 11 for discharging materials and the feeding port of the high-speed gas flow jet pulverizer 10, and then through the outlet of the high-speed gas flow jet pulverizer 10, enters the conveying pipeline through jet fragmentation and pressure-increasing fragmentation;

[0075] A mechanical arch-breaking device and multiple groups of pneumatic arch-breaking devices are installed on the inner side wall of the conical cylinder of the powder material storage bin 2 to assist the powder material in the bin to smoothly enter the feeding port of the double-screw feeder 7;

[0076] Furthermore, the control mode of the double-screw feeder 7 is a loss-weight control mode that adjusts the rotation speed of the double-screw feeder 7 by PID according to the change in the reduction of the material in the powder material storage bin 2 detected by the weighing sensor 9 in real time and the set conveying and pulverizing target amount.

[0077] Specifically, the central inlet of the atomizing spray nozzle 12 is connected to the outlet of the conveying pipeline, and the atomizing outlet part of the atomizing spray nozzle 12 is connected to the mixing and solidification chamber 13 through flange embedding, for providing stable and homogeneous liquid material spraying to mix with the micro-nano powder material;

[0078] Furthermore, as an optional solution, the central inlet of the atomizing spray nozzle 12 can also be connected to the compressed air pipeline, and the outer liquid inlet of the atomizing spray nozzle 12 is connected to the cam rotor pump 15;

[0079] Furthermore, the control mode of the cam rotor pump 15 is to perform start-stop control according to the temperature transmitter signal of the liquid material storage bin 16 through mathematical operation and delay calculation; at the same time, it also performs frequency conversion control according to the prepared powder material flow rate.

[0080] The continuous powder material jet milling and molten liquid material mixing and solidifying system provided by the present invention is a continuous and non-intermittent multi-component material mixing and solidifying system. Multi-component materials can be continuously input into the mixing and solidifying system for continuous mixing, with high preparation speed and efficiency.

[0081] Integrating the pulverization and transportation of powder materials, through the primary ejector mixing and secondary local pressurization crushing of a high-speed air jet mill, efficient pulverization of materials can be achieved, enabling the materials to be rapidly pulverized during transportation. While improving efficiency, it reduces the number of equipment and operation and maintenance costs, and also greatly reduces energy consumption.

[0082] At the same time, integrating the atomization and transportation of molten liquid materials, through an atomizing spray nozzle to form a gas-liquid spray with uniform droplets, subsequent uniform mixing and solidifying preparation can be achieved.

[0083] The continuous powder material jet milling and molten liquid material mixing and solidifying system provided by the present invention has a remote transportation function. According to the actual working conditions, the solidified and combined granular materials can be directly transported to the terminal position, reducing production links, reducing the number of equipment, and improving work efficiency.

[0084] The continuous powder material jet milling and molten liquid material mixing and solidifying system provided by the present invention eliminates the classification device, reduces the number of motors, lowers the energy consumption of the system equipment, and reduces the operation cost.

[0085] The above are only preferred embodiments of the present invention, and do not impose any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes, and decorations made to the above embodiments based on the technical essence of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. A continuous powder material jet crushing and molten liquid material mixing and solidification system, characterized in that: include: Vacuum loader; A powder material storage bin connected to the outlet of the vacuum feeder; The outlet of the powder material storage bin is flange-fixedly connected to a feed rotary valve, a bidirectional micro powder crusher and a double-screw feeder in sequence; A high-speed air jet pulverizer, the high-speed air jet pulverizer comprising an injection pipe, a nozzle, a mixing pipe, a throat pipe and a diffusion pipe connected in sequence, the mixing pipe having a mixing chamber arranged in a contracted shape, the mixing pipe being provided with an ejector pipe connected to the mixing chamber, the ejector port of the ejector pipe being flexibly connected to the outlet of the double-screw doser, the diffusion pipe having a diffusion chamber in a gradually expanding shape, the diffusion pipe being provided with a booster interface connected to the diffusion chamber, and the diffusion pipe being a discharge port; Mixing and curing chamber; A plurality of atomizing spray nozzles, wherein the plurality of atomizing spray nozzles are evenly arranged along the circumference of the mixing and curing chamber; the inlet of the atomizing spray nozzle is connected to the discharge port of the diffusion pipe, and the atomizing port of the atomizing spray nozzle is connected to the mixing and curing chamber through a flange; the atomizing spray nozzle has a Venturi structure cavity; Among them, the high-speed airflow jet pulverizer uses a pressure air source as the incident fluid air source, passes through the incident tube and the nozzle in sequence, forms a negative pressure in the mixing chamber, and sucks in granular powder materials as the ejection fluid through the ejection tube. After uniform mixing, it enters the throat at a high speed to form a collision and perform primary crushing; then the mixed fluid enters the diffusion tube, the pressure rises, and compressed air is injected through the boost interface on the diffusion tube to locally boost the pressure, and a stable vortex is formed after boosting and secondary crushing is performed; the mixed fluid after crushing is transported to the inlet of the atomizing spray nozzle through a conveying pipeline; the liquid inlet of the atomizing spray nozzle uses molten liquid material as the incident fluid, forms a negative pressure at the nozzle, sucks the gas in the room, and forms a gas-liquid spray with uniform droplets, or uses high-pressure compressed air as the incident fluid air source, forms a negative pressure in the nozzle, sucks the molten liquid material, forms a gas-liquid spray with uniform droplets, and enters the mixing and curing chamber at a high speed, mixes and solidifies with the mixed fluid to form uniform and tightly combined multi-component powder particles, and then enters the particle collection bin for collection.

2. The continuous powder material jet crushing and molten liquid material mixing solidification system according to claim 1 is characterized in that: It also includes a cam rotor delivery pump and a liquid material storage bin, wherein the liquid inlet of the atomizing spray nozzle is connected to the output end of the cam rotor delivery pump, and the input end of the cam rotor delivery pump is connected to the liquid outlet of the liquid material storage bin, and the liquid material storage bin is used to place molten liquid material, wherein the molten liquid material includes molten high molecular organic matter and molten metal; the molten high molecular organic matter includes one or more of natural rubber, eucommia rubber, styrene-butadiene rubber, dandelion rubber and butadiene rubber.

3. The continuous powder material jet crushing and molten liquid material mixing solidification system according to claim 2 is characterized in that: The molten liquid material to be configured is manually added into the liquid material storage bin and transported to the cam rotor delivery pump through a rotary valve; after the liquid material storage bin reaches the specified temperature, the cam rotor delivery pump is turned on to transport the dense molten liquid material into the atomizing injection nozzle, and the connecting pipeline is equipped with electric heating to ensure that the material fills the pipeline and is dense and uniform.

4. The continuous powder material jet crushing and molten liquid material mixing solidification system according to claim 1 is characterized in that: The mixing and curing chamber is a static high temperature applicable type and has a built-in anti-stick coating.

5. The continuous powder material jet crushing and molten liquid material mixing solidification system according to claim 1 is characterized in that: The bidirectional micro powder crusher comprises a sleeve, an inner layer crushing cylinder and an outer layer crushing cylinder rotatably arranged in the sleeve, the outer layer crushing cylinder is sleeved on the outside of the inner layer crushing cylinder, and the inner layer crushing cylinder and the outer layer crushing cylinder rotate in opposite directions.

6. The continuous powder material jet crushing and molten liquid material mixing solidification system according to claim 1 is characterized in that: Also includes: A feeding fan and a suction device, wherein the feeding fan provides kinetic energy for the powder material to be crushed, and the feeding fan sucks the powder material to be crushed into the vacuum feeding machine through the suction device and the suction pipe; the vacuum feeding machine delivers the powder material into the powder material storage bin through the feeding pipe; The powder material storage bin is provided with a material level meter to detect the material in the bin.

7. The continuous powder material jet crushing and molten liquid material mixing and solidification system according to claim 1 is characterized in that: The double-screw feeder is located at the outlet of the powder material storage bin. The double-screw feeder adopts an inlaid double-screw structure and uses gears as transmission. The control method is a weight loss measurement method. The feeding rate of the double-screw feeder is calculated by collecting the weight loss per unit time, and the actual feeding rate is compared with the set target feeding rate, so as to feedback control and adjust the discharge amount of the double-screw feeder to provide the required material amount for continuous transportation and continuous crushing of powder materials. A silo weighing system which is linked with the double-screw dosing machine for weight precision control is installed on the bracket at the bottom of the powder material storage silo.

8. The continuous powder material jet crushing and molten liquid material mixing solidification system according to claim 1 is characterized in that: The pressure gas source is pressure gas or high-pressure compressed gas not less than 0.5 MPa.

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