Continuous powder material jet crushing and chemical dissolution liquid material mixing and curing system

Abstract

The invention discloses a continuous powder material jet crushing and chemical dissolution 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 connected in sequence, a mixing cavity arranged in a contracted shape is formed in the mixing pipe, and an injection pipe is arranged on the mixing pipe; a mixing curing chamber; the plurality of atomization spraying nozzles are uniformly arranged in the circumferential direction of the mixing and curing chamber; the atomization spraying nozzle is provided with a Venturi structure cavity; a discharge hole of the mixing and curing chamber is sequentially connected with a heating evaporator and a particle collecting bin. The device can be continuously put into a mixing and curing system for continuous mixing, and is high in preparation speed and high in efficiency.

Description

Technical Field

[0001] The present invention belongs to the technical field of the preparation of new materials by the solidification combination of polymer organic matter and inorganic matter, and particularly relates to a continuous powder material jet pulverization and chemical dissolution liquid material mixing and solidification system. Background Art

[0002] The solidification combination of organic matter and inorganic matter to prepare new materials has broad prospects in many industries such as petroleum, chemical industry, and materials. In the traditional process flow, for the process flow of mixing multiple materials, mechanical stirring is mostly used, which cannot form a stable dispersion effect and cannot ensure the consistency of the component ratio. In the current industry situation, the delamination phenomenon often occurs after solidification combination, which damages the material effect. For some high-melting-point polymer organic matters, the power consumption of heating and melting is relatively high, and only by increasing the liquid solvent can the separation, evaporation and other process links be increased, and the solvent can be collected and recycled, and the industrial parameters are precisely controlled. At present, many industries have high requirements for the quality stability, cost consistency and effect advancement of products.

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

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

[0005] A continuous powder material jet pulverization and chemical dissolution liquid material mixing and solidification system, comprising:

[0006] A vacuum feeder;

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

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

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

[0010] A mixing and solidification chamber;

[0011] Multiple atomizing spray nozzles, with multiple said atomizing spray nozzles arranged evenly 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 structure cavity;

[0012] The discharge port of the mixing and curing chamber is sequentially connected to a heating evaporator and a multi-component powder particle collection bin with a dust collector;

[0013] Among them, the high-speed gas jet mill uses a pressure gas source as the incident fluid gas source, passes through the incident pipe and the nozzle in sequence, 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 collisions and conducts primary crushing; 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 carried out; 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 chemically dissolved liquid material as the incident fluid, forms a negative pressure inside the nozzle, sucks in gas, 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 chemically dissolved liquid material, forms a gas-liquid spray with uniform droplets, enters the mixing and curing chamber to mix with the mixed fluid, then enters the heating evaporator, and the heating evaporator evaporates the internal liquid solvent into a gas and enters the dust collector of the particle collection bin together with the incident fluid and gas; the air outlet of the dust collector of the particle collection bin is connected to a solvent recovery tank, and the gaseous solvent condenses and settles into a liquid in the solvent recovery tank and is recycled through automatic control; in the heating evaporator, the remaining solid-liquid mixed material solidifies to form uniform and tightly combined multi-component powder particles and enters the particle collection bin for collection.

[0014] Furthermore, it also includes a cam rotor transfer pump and a liquid material storage bin. 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, and the liquid material storage bin is used for placing chemically dissolved liquid material.

[0015] Furthermore, the particulate material to be configured is manually added into the additive liquid material preparation bin, and a chemical solvent is injected simultaneously for dissolution; after the chemically dissolved liquid material is prepared, the cam rotor transfer pump is started to transport the chemically dissolved liquid material into the atomizing spray nozzle.

[0016] Furthermore, an anti-adhesion coating is provided inside the mixing and curing chamber; the airflow of the micro-nano powder material and the atomized and chemically dissolved liquid material are fully mixed and adhered in the mixing and curing chamber to form multi-component powder particles of solid-liquid mixture.

[0017] Furthermore, the heating evaporator is located near the dust collector at the top of the particle collection bin; the solvent recovery tank is arranged near the dust collector at the top of the particle collection bin, and the solvent recovery tank is provided with a heat exchange function for heat energy reuse; an exhaust port is arranged at the upper end of the outlet side of the solvent recovery tank for discharging the incident gas of the high-speed airflow pulverizer after the solvent settled by the dust collector, and is controlled by a pressure transmitter and a radar level gauge; the solvent settled in the solvent recovery tank is metered and reused by controlling an electric valve through an electromagnetic flowmeter.

[0018] Furthermore, the two-way micro-powder 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.

[0019] Furthermore, it further includes: a feeding fan and a suction device. Among them, 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 feeder through the suction device and the suction pipeline; the vacuum feeder sends the powder material into the powder material storage bin through the feeding pipeline;

[0020] A level gauge is arranged on the powder material storage bin to detect the material in the bin.

[0021] Furthermore, 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 as 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 to provide the required material amount for the continuous transportation and continuous crushing of the powder material;

[0022] 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.

[0023] Furthermore, the pressure air source is pressure gas or high-pressure compressed gas not less than 0.5 MPa.

[0024] Beneficial effects:

[0025] 1. A continuous powder material jet milling and chemical dissolution liquid material mixing and curing system provided by the present invention is a continuous and non-intermittent multi-component material mixing and curing system. Multi-component materials can be continuously fed into the mixing and curing system for continuous mixing, with fast preparation speed and high efficiency.

[0026] 2. A continuous powder material jet milling and chemical dissolution liquid material mixing and curing system provided by the present invention integrates the milling and transportation of powder materials. Through the primary entrainment mixing and secondary local pressurization crushing of a high-speed air jet mill, efficient milling of materials can be achieved, enabling the materials to be rapidly milled during transportation. While improving efficiency, it reduces the number of equipment and operation and maintenance costs, and also greatly reduces energy consumption.

[0027] 3. A continuous powder material jet milling and chemical dissolution liquid material mixing and curing system provided by the present invention integrates the atomization and transportation of chemical dissolution liquid materials. By forming a gas-liquid spray with uniform droplets through an atomizing spray nozzle, subsequent uniform mixing and curing preparation can be achieved.

[0028] 4. A continuous powder material jet milling and chemical dissolution liquid material mixing and curing system provided by the present invention has a remote transportation function. According to the actual working conditions, the cured and combined granular materials can be directly transported to the terminal position, reducing production links, reducing the number of equipment, and improving work efficiency.

[0029] 5. A continuous powder material jet milling and chemical dissolution liquid material mixing and curing system provided by the present invention reduces the number of motors, lowers the energy consumption of the system equipment, and reduces operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is the overall structural schematic diagram of a continuous powder material jet milling and chemical dissolution liquid material mixing and curing system of the present invention;

[0031] Figure 2 is the structural schematic diagram of the atomizing spray nozzle in a continuous powder material jet milling and chemical dissolution liquid material mixing and curing system of the present invention;

[0032] Figure 3 is the structural schematic diagram of the high-speed jet crusher;

[0033] Figure 4 is the structural schematic diagram of the two-way fine powder crusher;

[0034] Figure 5 is the structural schematic diagram of the inner crushing cylinder;

[0035] Figure 6 is the structural schematic diagram of the outer crushing cylinder;

[0036] 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 spray 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. Heating evaporator; 15. Particle collection bin; 16. Cam rotor transfer pump; 17. Liquid material preparation bin; 18. Solvent recovery tank. Detailed implementation mode

[0037] Example 1

[0038] Reference Figure 1 - Figure 6 , a continuous powder material jet milling and chemical dissolution liquid material mixing and curing system, comprising:

[0039] Vacuum loader 3;

[0040] Powder material storage bin 2 connected to the outlet of vacuum loader 3;

[0041] The outlet of powder material storage bin 2 is fixedly connected in sequence by flange to a feeding rotary valve 5, a double-direction fine powder crusher 6 and a double-screw feeder 7;

[0042] High-speed air flow jet mill 10, which includes an inlet pipe, a nozzle, a mixing pipe, a throat pipe and a diffuser pipe connected in sequence. A mixing chamber is arranged in a contracted shape in the mixing pipe. An ejector pipe communicating with the mixing chamber is arranged on the mixing pipe. The ejecting port of the ejector pipe is flexibly connected to the outlet of double-screw feeder 7. The diffuser pipe has a diffusing chamber in a gradually expanding shape. A boosting interface communicating with the diffusing chamber is arranged on the diffuser pipe. The diffuser pipe is the discharge port;

[0043] Mixing and curing chamber 13;

[0044] A plurality of atomizing spray nozzles 12 are arranged circumferentially and uniformly around the mixing and curing chamber 13; the inlet of the atomizing spray nozzle 12 is connected to the discharge port of the diffuser tube, and the atomizing port 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;

[0045] The discharge port of the mixing and curing chamber 13 is sequentially connected to a heating evaporator 14 and a multi-component powder particle collection bin 15 with a dust collector;

[0046] Among them, the high-speed air jet mill 10 uses a pressure air source as the incident fluid air source, passes through the incident pipe and the nozzle in sequence, forms a negative pressure in the mixing chamber, sucks in the particulate powder material as the entrained fluid through the entrainment pipe, enters the throat at high speed after uniform mixing, forms a collision and performs primary crushing; then the mixed fluid enters the diffuser tube, the pressure rises, and compressed air is injected through the booster interface on the diffuser tube 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 12 through a conveying pipeline;

[0047] The liquid inlet of the atomizing spray nozzle 12 uses chemically dissolved liquid material as the incident fluid, forms a negative pressure inside the nozzle, sucks in 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 the chemically dissolved liquid material, forms a gas-liquid spray with uniform droplets, enters the mixing and curing chamber 13 to mix with the mixed fluid, and then enters the heating evaporator 14. The heating evaporator 14 evaporates the internal liquid solvent into a gas and enters the dust collector of the particle collection bin 15 together with the incident fluid and gas; the air outlet of the dust collector of the particle collection bin 15 is connected to the solvent recovery tank 18, and the gaseous solvent condenses and settles into a liquid in the solvent recovery tank 18 and is recycled through automatic control; in the heating evaporator 14, the remaining solid-liquid mixed material solidifies to form uniform and tightly combined multi-component powder particles and enters the particle collection bin 15 for collection.

[0048] In this embodiment, 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.

[0049] Among them, the atomizing injection nozzle 12 adopts the Venturi principle. The first usage method is: using chemically dissolved liquid materials as the incident fluid, a negative pressure is formed at the nozzle to suck the indoor gas, forming a uniformly mixed spray, and entering the mixing and curing chamber 13 at high speed; specifically, the liquid inlet of the atomizing injection nozzle 12 is connected to the outlet of the cam rotor transfer pump 16, and the atomizing outlet part of the atomizing injection nozzle 12 is connected to the mixing and curing chamber 13 through flange embedding, which is used to provide a stable and homogeneous liquid material spray for mixing with the micro-nano powder material.

[0050] Specifically, it further includes a cam rotor transfer pump 16 and a liquid material storage bin. The liquid inlet of the atomizing injection nozzle 12 is connected to the output end of the cam rotor transfer pump 16, and the input end of the cam rotor transfer pump 16 is connected to the liquid outlet of the liquid material storage bin, and the liquid material storage bin is used to place the chemically dissolved liquid material.

[0051] Among them, the particulate material to be configured is manually added into the additive liquid material preparation bin 17, and a chemical solvent is injected at the same time for dissolution; after the chemically dissolved liquid material is prepared, the cam rotor transfer pump 16 is started to transport the chemically dissolved liquid material into the atomizing injection nozzle 12.

[0052] The second usage method of the atomizing injection nozzle 12 is: the atomizing injection nozzle 12 uses high-pressure compressed air as the incident fluid gas source, a negative pressure is formed at the nozzle to suck the chemically dissolved liquid material, and a uniformly mixed spray can also be formed.

[0053] In this usage method, the central inlet of the atomizing injection nozzle 12 is connected to the compressed air pipeline, and the outer liquid inlet of the atomizing injection nozzle 12 is connected to the cam rotor transfer pump 16.

[0054] In this embodiment, the atomizing injection nozzles 12 are arranged uniformly along the circumferential direction of the mixing and curing chamber 13 to ensure uniform mixing in all directions in the mixing and curing chamber 13;

[0055] According to the different ratio requirements of the final multi-component powder particles, axial multi-group nozzles can also be arranged.

[0056] In this embodiment, the mixing and curing chamber 13 is internally provided with an anti-adhesion coating; the micro-nano powder material airflow and the atomized chemically dissolved liquid material are fully mixed and adhered in the mixing and curing chamber 13 to form solid-liquid mixed multi-component powder particles.

[0057] In this embodiment, the heating evaporator 14 is located at the proximal end of the dust collector on the top of the particle collection bin 15; the solvent recovery tank 18 is arranged at the proximal end of the dust collector on the top of the particle collection bin 15, and the solvent recovery tank 18 is internally provided with a heat exchange function for heat energy recycling; an exhaust port is arranged at the upper end of the outlet side of the solvent recovery tank 18 for discharging the incident gas of the high-speed gas flow pulverizer 10 after the solvent collected by the dust collector settles, and is controlled by a pressure transmitter and a radar level gauge; the solvent settled in the solvent recovery tank 18 is metered and recycled by controlling an electric valve through an electromagnetic flowmeter.

[0058] Among them, the liquid solvent is heated and evaporated into a gas by the heating evaporator 14 and enters the dust collector. The air outlet of the dust collector is connected to the solvent recovery tank 18. The gaseous solvent condenses and settles in the solvent recovery tank 18, and the liquid solvent is injected into the liquid material preparation bin 17 by means of flow measurement; at the same time, in the heating evaporator 14, the remaining solid-liquid mixture solidifies to form uniform and tightly combined multi-component powder particles, which enter the particle collection bin 15 for collection.

[0059] 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.

[0060] 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. 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 by a shaft seal 6-9. The output shaft and the connecting flange located outside the sleeve are connected by a shaft seal 6-9; a feed pipe 6-5 is arranged at the upper part of one end of the sleeve close to the motor 6-1, and a collection bin discharge pipe 6-8 is arranged at the other end far from the motor 6-1. A cooling pipeline is arranged on the inner wall of the sleeve. The cooling pipeline and the shaft seal part are connected to the water cooling system to cool down the transmission mechanism 6-2.

[0061] The working principle of the two-way micropowder crusher 6 is as follows: After the granular material is transported 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 moving radius expands, and they are broken by the collision and shearing of the barrel sleeve, the collision and shearing of the outer wall of the outer crushing cylinder, and the particle collision between the barrel sleeve and the rotating outer wall of the outer crushing cylinder; the small particles have a contracted moving radius, and after passing through the flow channel on the rotating outer crushing cylinder, they enter the middle layer 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 into the collection bin discharge pipe located at the center of the outlet end of the barrel sleeve under the suction of the negative pressure source on the side of the collection bin discharge pipe (the near-vacuum negative pressure generated by the high-speed air flow jet mill 10), and is transported to the double-screw dosing machine 7.

[0062] In this embodiment, the high-speed air flow jet mill 10 adopts the Venturi principle and uses the 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.

[0063] The continuous powder material jet crushing and chemical dissolution liquid material mixing and curing 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 crushed. The feeding fan 1 sucks the powder material to be crushed into the vacuum feeding machine 3 through the suction device 4 and the suction pipeline; the vacuum feeding machine 3 sends the powder material into the powder material storage bin 2 through the feeding pipeline.

[0064] A level gauge is provided on the powder material storage bin 2 to detect the material in the bin.

[0065] In this embodiment, the double-screw dosing machine 7 is located at the outlet of the powder material storage bin 2. The double-screw dosing machine 7 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 dosing machine 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 dosing machine 7 to provide the required material amount for the continuous transportation and continuous crushing of the powder material.

[0066] A bin weighing system linked with the double-screw dosing machine 7 for weight accuracy control is installed on the bracket at the bottom of the powder material storage bin 2.

[0067] In this embodiment, the pressure gas source is the pressure gas provided by the Roots blower 8 or the high-pressure compressed gas not lower than 0.5 MPa.

[0068] The continuous powder material jet pulverization and chemical dissolution liquid material mixing and curing system provided in this embodiment can forcibly disperse and uniformly mix the powder material with the chemically dissolved liquid material atomized and injected through the air flow injection nozzle to form solid-liquid mixed particles. Then, the mixed fluid is rapidly heated, the solvent evaporates into the air flow, the solvent is condensed and settled for recycling, and the remaining solid-liquid mixed material is cured to form uniform and tightly combined multi-component powder particles for collection. At the same time, the millimeter-level powder material raw material is pulverized to the micro-nano level for preparation. This system is a mixing and curing combination system integrating continuous feeding, long-distance transportation, ultrafine pulverization, forced dispersion, uniform mixing, solvent recycling, and finished product collection of multi-component materials.

[0069] Since the system adopts a continuous mixing and curing method, the multi-component materials are uniformly mixed in the curing mixing chamber through the air flow injection method respectively, which improves the product quality while reducing the equipment cost, chemical agent cost, and operation cost, and also reduces the production energy consumption.

[0070] Embodiment 2

[0071] This embodiment is further arranged on the basis of the continuous powder material jet pulverization and chemical dissolution liquid material mixing and curing system provided in Embodiment 1.

[0072] A continuous powder material jet pulverization and chemical dissolution liquid material mixing and curing system includes that the material suction device 4 is connected to the inlet of the vacuum feeding machine 3 through a material suction pipeline; the vacuum feeding machine 3 is connected to the feeding port of the 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; the multiple groups of pneumatic arch breaking devices are connected to a high-pressure gas source; 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; the outlet of the powder material storage bin 2 is successively connected to a rotary valve 5, a two-way micro powder crusher 6, and a double-screw feeder 7; the outlet of the double-screw feeder 7 is connected to the inlet of the fast pneumatic valve 11 for blanking through a flexible connection, and the outlet of the fast pneumatic valve 11 for blanking is connected to the feeding port of the high-speed air flow jet pulverizer 10. The air outlet of the Roots blower 8 is connected to the working fluid inlet of the high-speed air flow jet pulverizer 10 through a pipeline, and the outlet of the high-speed air flow jet pulverizer 10 is connected to the powder material inlet of the mixing and curing chamber 13 through a conveying pipeline;

[0073] On the other hand, it includes that the liquid material preparation bin 17 is connected to the cam rotor transfer pump 16 to control the start and stop of the pump by temperature; the outlet of the cam rotor transfer pump 16 is connected to the atomizing injection nozzle 12 and is embedded in the mixing and curing chamber 13; the mixed particle material outlet of the mixing and curing chamber 13 is connected to the liquid material preparation bin 17 with a dust removal fan for final collection.

[0074] Specifically, the powder material to be crushed utilizes the kinetic energy provided by the feeding blower 1 and is sucked into the vacuum feeding machine 3 through the suction pipe by the suction device 4; the vacuum feeding machine 3 sends the powder material into the powder material storage bin 2 through the feeding pipe; the level gauge installed on the powder material storage bin 2 detects the material in the bin and stops feeding when the high level is detected.

[0075] The Roots blower 8 serves as the power source of the conveying and crushing system, providing sufficient power for the continuous powder material jet crushing and chemical dissolution liquid material mixing and curing system; after the Roots blower 8 is started, the system will automatically detect the state of the working flow field in the high-speed gas flow jet crusher 10, and open the quick pneumatic valve 11 for feeding when the requirements for system operation are met.

[0076] The double-screw feeder 7 feeds the powder material in the powder material storage bin 2 into the mass transfer cavity of the high-speed gas flow jet crusher 10 through the quick pneumatic valve 11 for feeding and the feed inlet of the high-speed gas flow jet crusher 10, and then through the outlet of the high-speed gas flow jet crusher 10, enters the conveying pipe through jet breaking and pressure boosting breaking.

[0077] 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 to assist the powder material in the bin to smoothly enter the feed inlet of the double-screw feeder 7.

[0078] Furthermore, the control mode of the double-screw feeder 7 is a loss-of-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 crushing target amount by the user.

[0079] Specifically, the central inlet of the atomizing injection nozzle 12 is connected to the outlet of the cam rotor transfer pump 16, and the atomizing outlet part of the atomizing injection nozzle 12 is connected to the mixing and curing chamber 13 through a flange, which is used to provide a stable and homogeneous liquid material spray to mix with the micro-nano powder material to form a solid-liquid mixed raw material.

[0080] Furthermore, as another usage mode, the central inlet of the atomizing injection nozzle 12 can also be connected to the compressed air pipe, and the outer ring liquid inlet of the atomizing injection nozzle 12 is connected to the cam rotor transfer pump 16.

[0081] Specifically, the outlet of the mixing and curing chamber 13 is sequentially connected to the heating and evaporator 14 and the particle collection bin 15. The solid-liquid mixed raw material passes through the heating and evaporator 14, where the internal liquid solvent is evaporated into a gas and enters the dust collector in the particle collection bin 15 together with the incident fluid gas for pulverization. The air outlet of the dust collector of the particle collection bin 15 is connected to the solvent recovery tank 18. The gaseous solvent condenses and settles into a liquid in the solvent recovery tank 18 and is recycled through automatic control. In the heating and evaporator, the remaining solid-liquid mixed material solidifies to form uniform and tightly combined multi-component powder particles, which are collected in the particle collection bin.

[0082] Furthermore, the control mode of the cam rotor transfer pump 16 is to perform start-stop control through mathematical operations based on the flow signal carried by the solvent recovery tank 18, and at the same time, perform frequency conversion control according to the flow rate of the prepared powder material.

[0083] A continuous powder material jet pulverization and chemical dissolution liquid material mixing and curing system provided by the present invention is a continuous and non-intermittent multi-component material mixing and curing system. Multi-component materials can be continuously input into the mixing and curing system for continuous mixing, with fast preparation speed and high efficiency.

[0084] Integrating the pulverization and transportation of the powder material, through the primary ejecting and mixing and secondary local pressurization and crushing of the high-speed air flow jet pulverizer, efficient pulverization of the material can be achieved, enabling the material to be quickly pulverized during transportation, improving efficiency, reducing the number of equipment and operation and maintenance costs, and also greatly reducing energy consumption.

[0085] At the same time, integrating the atomization and transportation of the chemically dissolved liquid material, through the atomizing injection nozzle to form a gas-liquid spray with uniform droplet particles, subsequent uniform mixing and curing preparation can be achieved.

[0086] A continuous powder material jet pulverization and chemical dissolution liquid material mixing and curing system provided by the present invention has a remote transportation function. According to actual working conditions, the solidified and combined particle material can be directly transported to the terminal position, reducing production links, reducing the number of equipment, and improving work efficiency.

[0087] A continuous powder material jet pulverization and chemical dissolution liquid material mixing and curing system provided by the present invention reduces the number of motors, lowers the energy consumption of the system equipment, and reduces the operation cost.

[0088] The above is only a preferred embodiment of the present invention, and does not impose any limitation on the technical scope of the present invention. Therefore, any minor modifications, equivalent changes, and modifications 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 injection crushing and chemical dissolution liquid material mixing and curing system, characterized in that, Including: Vacuum feeding machine; Powder material storage bin connected to the outlet of the vacuum feeding machine; The outlet of the powder material storage bin is fixedly connected to a feeding rotary valve, a two-way fine powder crusher and a double-screw feeder in sequence by flanges; High-speed air flow jet mill, the high-speed air flow jet mill includes an incident pipe, a nozzle, a mixing pipe, a throat pipe and a diffuser pipe connected in sequence, a mixing cavity arranged in a contracted shape is provided in the mixing pipe, an ejector pipe communicated with the mixing cavity is arranged on the mixing pipe, the ejector port of the ejector pipe is flexibly connected to the outlet of the double-screw feeder, the diffuser pipe has a diffuser cavity in a gradually expanding shape, a pressurizing interface communicated with the diffuser cavity is arranged on the diffuser pipe, and the diffuser pipe is the discharge port; Mixing and curing chamber; A plurality of atomizing spray nozzles, and the plurality of atomizing spray nozzles are uniformly arranged 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 by a flange; the atomizing spray nozzle has a Venturi structure cavity; The discharge port of the mixing and curing chamber is connected to a heating evaporator and a multi-component powder particle collection bin with a dust collector in sequence; Wherein, the high-speed air flow jet mill uses a pressure gas source as the incident fluid gas source, passes through the incident pipe and the nozzle in sequence, forms a negative pressure in the mixing cavity, sucks in particulate powder material as the ejector fluid through the ejector pipe, uniformly mixes and then enters the throat pipe at high speed to form a collision and perform primary pulverization; then the mixed fluid enters the diffuser pipe, the pressure rises, and compressed air is injected through the pressurizing interface on the diffuser pipe to locally pressurize it, and a stable eddy current is formed after pressurization 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 chemically dissolved liquid material as the incident fluid, forms a negative pressure inside the nozzle, sucks in gas, 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 chemically dissolved liquid material, forms a gas-liquid spray with uniform droplets, enters the mixing and curing chamber to mix with the mixed fluid, and then enters the heating evaporator, and the heating evaporator evaporates the internal liquid solvent into a gas and enters the dust collector of the particle collection bin together with the incident fluid and gas; the air outlet of the dust collector of the particle collection bin is connected to a solvent recovery tank, and the gaseous solvent condenses and settles into a liquid in the solvent recovery tank and is recycled through automatic control; in the heating evaporator, the remaining solid-liquid mixed material is solidified to form uniform and tightly combined multi-component powder particles and enters the particle collection bin for collection.

2. The continuous powder material injection, pulverization, chemical dissolution, liquid material mixing and solidification system according to claim 1, wherein It further includes a cam rotor transfer pump and a liquid material storage bin, 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, and the liquid material storage bin is used for storing chemically dissolved liquid material.

3. The continuous powder material injection, pulverization, chemical dissolution, liquid material mixing and solidification system according to claim 2, characterized in that, The particulate material to be configured is manually added into the preparation bin for the additive liquid material, and a chemical solvent is injected simultaneously for dissolution; after the preparation of the chemically dissolved liquid material is completed, the cam rotor transfer pump is started to transfer the chemically dissolved liquid material into the atomizing injection nozzle.

4. The continuous powder material injection crushing and chemical dissolution liquid material mixing and curing system according to claim 1, characterized in that, The mixing and curing chamber is internally provided with an anti-adhesion coating; The airflow of the micro-nano powder material and the atomized chemically dissolved liquid material are fully mixed and adhered in the mixing and curing chamber to form a solid-liquid mixed multi-component powder particle.

5. The continuous powder material jet milling and chemical dissolution liquid material mixing and curing system according to claim 1, characterized in that, The heating evaporator is proximal to the dust collector at the top of the particle collection bin; the solvent recovery tank is arranged proximal to the dust collector at the top of the particle collection bin, and the solvent recovery tank is internally provided with a heat exchange function for heat energy reuse; an exhaust port is arranged at the upper end of the outlet side of the solvent recovery tank for discharging the incident gas of the high-speed gas jet pulverizer after the solvent settled by the dust collector, and is controlled by a pressure transmitter and a radar level gauge; the solvent settled in the solvent recovery tank is metered and reused by controlling an electric valve through an electromagnetic flowmeter.

6. The continuous powder material jet milling and chemical dissolution liquid material mixing and curing system according to claim 1, characterized in that The two-way micro-powder crusher 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.

7. The continuous powder material jet milling and chemical dissolution liquid material mixing and solidifying system according to claim 1, characterized in that, It further includes: A feeding fan and a suction device, wherein 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 suction device and the suction pipeline; the vacuum feeder sends the powder material into the powder material storage bin through the feeding pipeline; A level gauge is arranged on the powder material storage bin to detect the material in the bin.

8. The continuous powder material jet milling and chemical dissolution liquid material mixing and curing system according to claim 1, wherein 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 as the 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 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 to provide the required material amount for the continuous conveying and continuous pulverization of the powder material; A bin weighing system for weight accuracy control linkage with the double-screw feeder is equipped on the bracket at the bottom of the powder material storage bin.

9. The continuous powder material jet milling and chemical dissolution liquid material mixing and curing system according to claim 1, wherein The pressure gas source is a pressure gas or a high-pressure compressed gas not less than 0.5 MPa.

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