Block material pulverization and release device and method

Abstract

The invention discloses a block material pulverization and release device and method, and belongs to the technical field of industrial device feeding. A flexible air bag, a blade fixing frame and a motor fixing frame are sequentially arranged in a material storage device from top to bottom, a material storage cavity is formed between the flexible air bag and the blade fixing frame, materials are contained in the material storage cavity, and a mixing cavity is formed between the blade fixing frame and the motor fixing frame. The mixing cavity is provided with an air inlet connected with the air supply device, the air supply device is further connected with the flexible air bag, the transmission motor is fixedly installed on the motor fixing frame, and a transmission shaft is installed at the output end of the transmission motor and connected with the rotary blade after penetrating through the blade fixing frame. The limitation that a traditional powder feeding device depends on an initial powder form is broken through, a novel material treatment mode of blocky storage, quantitative pulverization and accurate release is constructed, and the device has remarkable application value in the fields of industrial powder spraying, environment-friendly denitration agent feeding, chemical raw material conveying and the like.

Description

Technical Field

[0001] The invention relates to a block material pulverization and release device and method, belonging to the technical field of industrial device feeding. Background Art

[0002] In many fields such as industrial production, environmental protection, and material processing, the quantitative feeding and precise release of powder materials are key technical links. In the existing technology, powder feeding devices usually use powder as the initial material, which is directly loaded into the powder feeding device, and the quantitative release of powder is achieved through mechanical vibration, spiral conveying, pneumatic conveying, etc. This processing method with powder as the initial form has inherent limitations: on the one hand, powder is easily affected by environmental factors such as humidity and air pressure during storage, resulting in problems such as agglomeration, stratification, and poor fluidity, resulting in a decrease in powder feeding accuracy; on the other hand, the transportation and storage of powder materials require special dust-proof and moisture-proof equipment, which increases production costs and management difficulties.

[0003] With the development of industrial automation and intelligentization, higher requirements are being placed on the efficiency, environmental friendliness, and precision of material handling. Pre-compression of powder materials into bulk materials has become an important approach to addressing these issues. Bulk materials offer advantages such as compact size, ease of storage and transportation, and minimal environmental impact. However, they must be converted from bulk to powder during use and meet the requirements for quantitative release. Mobile devices, such as aircraft, have limited storage space and limited powder carrying capacity. Therefore, it is even more necessary to compress materials into bulk materials to increase the amount of material carried in a small space. However, compressed materials must be released as powders during release, so pulverization and release must be completed while the device is in motion. Current technologies for pulverizing and releasing bulk materials present significant technical gaps. For example, traditional pulverization equipment primarily targets bulk waste or natural ores, focusing on high-intensity crushing and making it difficult to achieve refined pulverization and quantitative control. Existing powder feeding devices cannot directly process bulk materials. Therefore, there is an urgent need for a specialized device that can efficiently pulverize bulk materials and precisely release them in a quantitative manner to meet the diverse material handling needs of modern industry. Summary of the Invention

[0004] The purpose of this invention is to address the inability of existing powder feeding devices to directly process bulk materials. Conventional pulverization equipment, which primarily targets bulk waste or natural ores, focuses on high-intensity crushing, making it difficult to achieve refined pulverization and quantitative control. The following provides a brief overview of the invention to provide a basic understanding of certain aspects of the invention. It should be understood that this overview is not an exhaustive overview of the invention. It is not intended to identify key or important aspects of the invention, nor is it intended to limit the scope of the invention.

[0005] The technical solution of the present invention:

[0006] A bulk material pulverizing and releasing device comprises a material storage container, a material pulverizing device, a transmission motor, a rotating blade, a blade fixing frame, a motor fixing frame, a flexible airbag, a transmission shaft, a microcontroller and an air supply device. The flexible airbag, the blade fixing frame and the motor fixing frame are sequentially arranged inside the material storage container from top to bottom, wherein a material storage chamber is formed between the flexible airbag and the blade fixing frame, and the material is loaded in the material storage chamber. A mixing chamber is formed between the blade fixing frame and the motor fixing frame, and the mixing chamber is provided with an air inlet connected to the air supply device. At the same time, the air supply device is also connected to the flexible airbag. The transmission motor is fixedly mounted on the motor fixing frame, and a transmission shaft is mounted on the output end of the transmission motor. The transmission shaft passes through the blade fixing frame and is connected to the rotating blade. The microcontroller is connected to the transmission motor and the air supply device.

[0007] Preferably, there are multiple rotating blades, and they are arranged in a disc shape.

[0008] Preferably, the blade fixing frame and the motor fixing frame both have through holes for accommodating the passage of materials.

[0009] Preferably, there are four air inlets, which are evenly arranged in an array around the outer wall of the material storage container.

[0010] Preferably, the material storage container is a shell structure with an outlet at the bottom.

[0011] Solution 2: A method for pulverizing and releasing a bulk material, which is implemented based on the device for pulverizing and releasing a bulk material described in Solution 1, comprises:

[0012] Step 1: briquetting the powdered material, i.e., the powdered material is fed into a powder feeder for die-casting after die-casting;

[0013] Step 2: loading the briquette material into the material storage cavity of the material storage device;

[0014] Step 3, initializing the microcontroller and adjusting the flexible airbag so that the flexible airbag is in squeeze contact with the material;

[0015] Step 4: Based on the material characteristics and feeding requirements, the microcontroller is used to set the number of revolutions of the transmission motor, the gas flow rate of the mixed gas introduced into the mixing chamber by the gas supply device, and the gas flow rate of the supplementary gas introduced into the flexible airbag.

[0016] Step 5: Start the transmission motor and the air supply device. The block material is cut and pulverized by the rotating blade, enters the mixing chamber, mixes with the mixed gas, and then is discharged from the material storage.

[0017] The present invention has the following beneficial effects:

[0018] 1. This invention pre-presses powder into blocks and stores them in the material storage chamber. Compared with traditional direct powder storage, this significantly reduces the contact area between the material and the external environment, effectively avoiding agglomeration and stratification caused by humidity and air pressure changes, and improving material storage stability. The block shape is compact, which can improve storage space utilization and reduce dust pollution and loss during transportation.

[0019] 2. The flexible airbag of the present invention is linked to the air supply device. The microcontroller adjusts the airbag inflation volume, which can accurately control the material downward pressure rate in the material storage chamber, achieving quantitative supply of bulk materials to the pulverization area, avoiding the problems of material jamming and overfeeding that may occur with traditional mechanical pushers, and providing stable material input for the subsequent pulverization process.

[0020] 3. The rotating blades of the present invention are connected to the transmission motor via a transmission shaft, and rotate at high speed to achieve efficient crushing and pulverization of bulk materials. The mixing chamber between the blade mounting bracket and the motor mounting bracket simultaneously introduces airflow from the air supply device, breaking up and mixing the materials in real time during the pulverization process, ensuring uniform powder particle size. At the same time, the airflow power assists the movement of the materials toward the release end, preventing accumulation of materials after pulverization.

[0021] 4. The microcontroller in this invention integrates control over the transmission motor speed and the air intake volume of the air supply device. This allows for dynamic adjustment of the pulverization intensity and release rate based on different material properties, such as hardness and density, to meet the quantitative release requirements of diverse production scenarios. Compared to traditional manually adjustable or fixed parameter equipment, this significantly improves the adaptability and control accuracy of the device.

[0022] 5. The material storage container of the present invention integrates a flexible airbag, a pulverizing device and a mixing chamber from top to bottom. Each functional module is connected to the air circuit and the circuit through a mechanical structure to form a closed-loop system, which reduces external pipelines and components, reduces equipment volume and maintenance costs, and improves the sealing during operation to avoid dust overflow, meeting environmentally friendly production requirements.

[0023] 6. This invention breaks through the limitation of traditional powder feeding device relying on the initial powder form, constructs a new material processing mode of "block storage-quantitative pulverization-precise release", with flexible mobile release space and significant application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic structural diagram of a bulk material pulverization and release device;

[0025] Figure 2 This is a diagram showing the coordinated installation of the rotary blade of the present invention;

[0026] In the figure: 1-material storage, 2-transmission motor, 3-rotating blade, 4-blade fixing frame, 5-motor fixing frame, 6-flexible airbag, 7-transmission shaft, 8-microcontroller, 9-air supply device, 10-material storage chamber, 11-mixing chamber, 12-air inlet. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention is described below using specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessary confusion of the concepts of the present invention.

[0028] The connections mentioned in the present invention are divided into fixed connections and detachable connections. The fixed connection refers to a non-detachable connection, including but not limited to conventional fixed connection methods such as hem connection, rivet connection, adhesive connection, and welding connection. The detachable connection refers to but not limited to conventional detachable connection methods such as threaded connection, snap connection, pin connection, and hinge connection. When the specific connection method is not clearly specified, it is assumed that at least one connection method can always be found among the existing connection methods to achieve the function. Those skilled in the art can choose according to their needs. For example, a welded connection is selected for a fixed connection, and a hinge connection is selected for a detachable connection.

[0029] Specific implementation method 1: Combination Figure 1-Figure 2 Describe this embodiment. This embodiment is a block material pulverizing and releasing device, including a material storage 1, a material pulverizing device 2, a transmission motor 2, a rotating blade 3, a blade fixing frame 4, a motor fixing frame 5, a flexible airbag 6, a transmission shaft 7, a microcontroller 8 and an air supply device 9. The flexible airbag 6, the blade fixing frame 4 and the motor fixing frame 5 are sequentially arranged inside the material storage 1 from top to bottom, wherein a material storage chamber 10 is formed between the flexible airbag 6 and the blade fixing frame 4, and the material is loaded in the material storage chamber 10. A mixing chamber 11 is formed between the blade fixing frame 4 and the motor fixing frame 5, and the mixing chamber 11 is provided with an air inlet 12 connected to the air supply device 9. At the same time, the air supply device 9 is also connected to the flexible airbag 6. The transmission motor 2 is fixedly installed on the motor fixing frame 5, and a transmission shaft 7 is installed at the output end of the transmission motor 2. The transmission shaft 7 passes through the blade fixing frame 4 and is connected to the rotating blade 3. The microcontroller 8 is connected to the transmission motor 2 and the air supply device 9.

[0030] There are multiple rotating blades 3, which are arranged in a circular array in a disc shape. The distribution number of rotating blades 3 gradually increases in place, ensuring that the cutting workload of each rotating blade 3 is as equal as possible during the entire working process, avoiding excessive workload of a single blade, and increasing the stability of system operation. At the same time, the multi-blade layout can enhance the adjustability of the system under multiple working conditions.

[0031] The blade fixing frame 4 and the motor fixing frame 5 both have through holes for accommodating the passage of materials.

[0032] There are four air inlets 12, which are evenly arranged in a circular array on the outer wall of the material storage container 1. The pulverized material is mixed with the mixed gas in the mixing chamber 11 to further enhance the uniformity of the material, and then the material is collected at the center point through the outlet at the bottom of the material storage container 1.

[0033] The material storage container 1 is a shell structure with an outlet at the bottom. The shell structure is cylindrical, and the material is clamped between the flexible airbag 6 and the rotating blade 3. A fixed track is avoided inside the material storage container 1 to prevent the material from rotating inside during operation, to prevent the material from being stuck relative to the pulverizing device, affecting the material feeding, increasing the internal force, and damaging the device.

[0034] Placing the transmission motor 2 at the bottom end of the material pulverizing device 2 instead of the top end of the flexible airbag 6 reduces the transmission distance and ensures the integrity of the flexible airbag 6 and the material without the need for punching. The transmission motor 2 is arranged in the material storage container 1, which ensures the integrity of the device and improves the coordinated installation of the device. A guide plate is provided on the top of the transmission motor 2, which can prevent the pulverized material from affecting the operation of the motor while also shaping the material.

[0035] During operation, the air supply device 9 inflates the flexible airbag 6 through the air supply port, causing the flexible airbag 6 to expand and squeeze the material, ensuring that the force between the rotating blade 3 and the material remains stable, and ensuring that the amount of material provided is stable under the same working conditions.

[0036] The air replenishing device 9 is divided into two paths, one of which is the mixed gas inlet. The same air path is divided into four branches, which are respectively connected to the four air inlets 12. The four branches are opened and closed at the same time. The other air path is the supplementary air path for the flexible airbag 6. The air filling amount of the air path is controlled by the material moving speed required by the working conditions.

[0037] Specific implementation method 2: Combination Figure 1-Figure 2 This embodiment describes a method for pulverizing and releasing a bulk material, which is implemented by relying on a bulk material pulverizing and releasing device described in the first embodiment, and includes:

[0038] Step 1: Press the powdered material into a briquette, i.e., the powdered material is pressed into a powder feeder for die casting after die casting. In the early stage of the micro-nano material test, the die casting pressure was 1.2 MPa. It was difficult to form the material under too low a pressure, and it was difficult to pulverize the material under too high a pressure.

[0039] Step 2: Load the briquetting material into the material storage cavity 10 of the material storage device 1;

[0040] Step 3, initializing the microcontroller 8 and adjusting the flexible airbag 6 so that the flexible airbag 6 is in extrusion contact with the material;

[0041] Step 4: Based on the material characteristics and feeding requirements, the microcontroller 8 is used to set the number of revolutions of the drive motor 2, the gas flow rate of the mixed gas introduced into the mixing chamber 11 by the gas supply device 9, and the gas flow rate of the supplementary gas introduced into the flexible airbag 6;

[0042] Step 5, start the transmission motor 2 and the air supply device 9, the block material is cut and powdered by the rotating blade 3, enters the mixing chamber 11, mixes with the mixed gas, and then is discharged from the material storage 1.

[0043] Specific implementation method three: Combination Figure 1-Figure 2 This embodiment describes a bulk material pulverization and release method, which is implemented based on the bulk material pulverization and release device described in the first embodiment. It is suitable for the precise on-demand release of micro-nano powder materials such as metal powders, pharmaceutical raw materials, and chemical catalysts, and includes:

[0044] Step 1: briquetting the powdered material, i.e., the powdered material is fed into a powder feeder for die-casting after die-casting;

[0045] Die-cast into high-density blocks such as cylinders / square ingots at a pressure of 1.2 MPa. The pressure is selected based on:

[0046] Lower limit control: When the pressure is less than 1.0 MPa, the block becomes loose and fragile and cannot be transported stably;

[0047] Upper limit control: When the hardness is greater than 1.5MPa, it is too high, the subsequent pulverization energy consumption increases sharply and the blade is easily damaged;

[0048] The density of the briquette must be uniform, without cracks on the surface, and the quality error of a single piece must be ≤±2%;

[0049] Step 2: Load the briquetting material into the material storage cavity 10 of the material storage device 1;

[0050] The microcontroller 8 starts the inflation process of the flexible airbag 6:

[0051] The air filling device 9 injects an inert gas such as nitrogen into the airbag until the flexible airbag 6 expands and fits tightly against the upper surface of the block; the pressure of the flexible airbag 6 is maintained at 0.05-0.1 MPa to ensure that the block is continuously pressurized but not deformed;

[0052] Step 3, initializing the microcontroller 8 and adjusting the flexible airbag 6 so that the flexible airbag 6 is in extrusion contact with the material;

[0053] The following key parameters are input through the microcontroller 8, taking zinc oxide nanopowder as an example:

[0054] Table 1 Control parameters

[0055] Parameter items Setting value effect Speed ​​of transmission motor 2 1500rpm Control blade cutting strength and pulverization rate Gas flow rate of mixed gas in mixing chamber 11 0.5L / min Carry powder and prevent cavity accumulation Gas flow rate of the supplementary gas in the flexible airbag 6 0.1L / min Maintain extrusion pressure and compensate for material consumption

[0056] When the airbag moves downward due to material consumption, the flow sensor provides real-time feedback on the position, and the microcontroller 8 dynamically adjusts the air supply flow to maintain constant pressure. When the feeding demand changes, such as switching from 10g / min to 20g / min, the speed of the transmission motor 2 is proportionally increased to 3000rpm.

[0057] Step 4: Based on the material characteristics and feeding requirements, the microcontroller 8 is used to set the number of revolutions of the drive motor 2, the gas flow rate of the mixed gas introduced into the mixing chamber 11 by the gas supply device 9, and the gas flow rate of the supplementary gas introduced into the flexible airbag 6;

[0058] Step 5: Start the transmission motor 2 and the air supply device 9. The transmission motor 2 drives the rotating blade 3 to cut the bottom of the briquette at high speed. After being cut and pulverized by the rotating blade 3, the block material enters the mixing chamber 11 and is mixed with the mixed gas before being discharged from the material storage 1. At the same time, the flexible airbag 6 continues to press down to ensure that the block is always in contact with the blade.

[0059] After reaching the preset feeding amount, the microcontroller automatically turns off the motor and the air supply device 9; residual powder removal: a high-pressure purge gas flow rate of 2L / min is introduced into the mixing chamber 11 for 10s to achieve zero residue.

[0060] It should be noted that in the above embodiments, as long as the technical solutions are not contradictory, they can be permuted and combined. Those skilled in the art can exhaust all possibilities based on the mathematical knowledge of permutations and combinations. Therefore, the present invention will no longer describe the technical solutions after permutations and combinations one by one, but it should be understood that the technical solutions after permutations and combinations have been disclosed by the present invention.

[0061] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A bulk material pulverization and release device, characterized in that: The invention comprises a material storage device (1), a transmission motor (2), a rotating blade (3), a blade fixing frame (4), a motor fixing frame (5), a flexible airbag (6), a transmission shaft (7), a microcontroller (8) and an air supply device (9). The flexible airbag (6), the blade fixing frame (4) and the motor fixing frame (5) are sequentially arranged inside the material storage device (1) from top to bottom, wherein a material storage cavity (10) is formed between the flexible airbag (6) and the blade fixing frame (4). The material is loaded into the material storage cavity (10), and the blade fixing frame (5) is fixed to the material storage cavity (10). A mixing chamber (11) is formed between the frame (4) and the motor fixing frame (5), and the mixing chamber (11) is provided with an air inlet (12) connected to the air supply device (9). The air supply device (9) is also connected to the flexible air bag (6). The transmission motor (2) is fixedly mounted on the motor fixing frame (5). A transmission shaft (7) is mounted on the output end of the transmission motor (2). The transmission shaft (7) passes through the blade fixing frame (4) and is connected to the rotating blade (3). The microcontroller (8) is connected to the transmission motor (2) and the air supply device (9).

2. The bulk material pulverization and release device according to claim 1, characterized in that: The rotating blades (3) are multiple and arranged in a disc shape.

3. The bulk material pulverization and release device according to claim 1, characterized in that: The blade fixing frame (4) and the motor fixing frame (5) both have through holes for accommodating the passage of materials.

4. The bulk material pulverization and release device according to claim 1, characterized in that: There are four air inlets (12) which are evenly arranged in an array around the outer wall of the material storage container (1).

5. The bulk material pulverization and release device according to claim 1, characterized in that: The material storage container (1) is a shell structure with an outlet at the bottom.

6. A method for pulverizing and releasing a bulk material, which is realized by relying on a bulk material pulverizing and releasing device according to any one of claims 1 to 5, characterized in that: include: Step 1: briquetting the powdered material, i.e., the powdered material is fed into a powder feeder for die-casting after die-casting; Step 2, loading the briquetting material into the material storage cavity (10) of the material storage device (1); Step 3, initializing the microcontroller (8), adjusting the flexible airbag (6), and making the flexible airbag (6) come into contact with the material by squeezing; Step 4, according to the characteristics of the material and the feeding requirements, the microcontroller (8) is used to set the number of revolutions of the transmission motor (2), the gas flow rate of the mixed gas introduced into the mixing chamber (11) by the gas supply device (9), and the gas flow rate of the supplementary gas introduced into the flexible airbag (6); Step 5, starting the transmission motor (2) and the air supply device (9), the block material is cut and pulverized by the rotating blade (3), enters the mixing chamber (11), is mixed with the mixed gas, and then is discharged from the material storage (1).

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