Boron carbide grinding and premixing device

Abstract

The utility model discloses a boron carbide grinding premixing device which comprises a stock bin, a feeding screw, a main engine room, a screening device, a dust removal device and an induced draft fan, the stock bin is used for storing boron carbide powder, a feeding screw conveyor is arranged on one side of the stock bin and used for conveying materials falling from the stock bin into the main engine room, the screening device is arranged on the other side of the stock bin, and the dust removal device is arranged on the other side of the stock bin. The main engine room is communicated with the material screening device through a first pipeline, the material screening device is communicated with the dust removal device through a second pipeline, one side of the dust removal device is connected with an induced draft fan, and the induced draft fan generates airflow to pre-grind materials in the main engine room; and after pre-grinding is completed, air flow is conveyed into the material screening device through the first pipeline for screening, and after screening is completed, air flow is conveyed into the dust removal device through the second pipeline for dust removal. Through the automatic pre-grinding, screening and dust removal processes, the treatment efficiency of the boron carbide powder is remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of boron carbide production, in particular to a boron carbide grinding premix device. Background Art

[0002] Boron carbide, due to its low density, high hardness, and high melting point, can be used as a structural material and chemical raw material, and has been widely used in military applications, specialty ceramics, and other fields. However, the industrial production of boron carbide generally uses the carbothermal reduction method. However, this method produces large boron carbide particles with low purity, making it difficult to ensure powder particle size uniformity. Powder agglomeration is also a serious problem, and unevenly dispersed boron carbide powder is not conducive to subsequent processing. Utility Model Content

[0003] The purpose of the utility model is to solve the above technical problems, thereby providing a boron carbide grinding premix device;

[0004] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0005] The utility model provides a boron carbide grinding premix device.

[0006] It includes a silo, a feeding screw, a main engine cabin, a screening device, a dust removal device, and an induced draft fan. The silo is used to store boron carbide powder. A feeding screw is provided on one side of the silo. The feeding screw is used to transport the material falling from the silo to the main engine cabin. The main engine cabin and the screening device are connected through a first pipe, and the screening device and the dust removal device are connected through a second pipe. An induced draft fan is connected to one side of the dust removal device. The induced draft fan generates an airflow to pre-grind the material in the main engine cabin. After the pre-grinding is completed, the airflow is transported to the screening device through the first pipe for screening. After the screening is completed, the airflow is transported to the dust removal device through the second pipe for dust removal.

[0007] Optionally, an airflow regulating valve is provided between the induced draft fan and the dust removal device, and the airflow volume of the induced draft fan can be adjusted according to the airflow pressure and material flow conditions in the system.

[0008] Optionally, a first discharge port is provided at the lower end of the screening device, and a second discharge port is provided at the lower end of the dust removal device.

[0009] Optionally, a feed port is provided on the top of the silo and is equipped with a sealing cover to prevent external impurities from entering the silo and contaminating the boron carbide powder.

[0010] Optionally, the first discharge port and the second discharge port are both provided with adjustable valves, which can flexibly control the discharge speed and flow rate of the material according to production needs, ensuring that the boron carbide powder after screening and dust removal can be discharged in an orderly and quantitative manner.

[0011] Optionally, the feeding screw is equipped with a variable frequency speed regulator for adjusting the material conveying speed according to production requirements to ensure uniform supply and pre-grinding efficiency of the material in the main cabin.

[0012] In summary, the present invention has the following beneficial effects:

[0013] This application significantly improves the processing efficiency of boron carbide powder through automated pre-grinding, screening and dust removal processes. The variable frequency speed regulation function of the feeding screw machine ensures the uniform supply of materials in the main cabin, thereby ensuring the stability of the pre-grinding effect. The combined use of the screening device and the dust removal device further improves the purity and uniformity of the product, meeting the demand for high-quality boron carbide powder in different fields. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model.

[0015] Explanation of the reference numerals: 1- silo, 2- feeding screw, 3- main engine room, 4- screening device, 5- dust removal device, 6- induced draft fan, 7- first pipeline, 8- second pipeline, 9- first discharge port, 10- second discharge port. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0017] Example:

[0018] like Figure 1 As shown, the utility model provides a boron carbide grinding premix device,

[0019] It includes a silo 1, a main engine cabin 3, a screening device 4, a dust removal device 5, and an induced draft fan 6. The silo 1 is used to store boron carbide powder. A feeding screw machine 2 is provided on one side of the silo 1. The feeding screw machine 2 is used to transport the material falling from the silo 1 to the main engine cabin 3. The main engine cabin 3 and the screening device 4 are connected through a first pipe 7. The screening device 4 and the dust removal device 5 are connected through a second pipe 8. An induced draft fan 6 is connected to one side of the dust removal device 5. The induced draft fan 6 generates an airflow to pre-grind the material in the main engine cabin 3. After the pre-grinding is completed, the material is transported to the screening device 4 through the first pipe 7 by the airflow for screening. After the screening is completed, the material is transported to the dust removal device 5 through the second pipe 8 by the airflow for dust removal.

[0020] An air flow regulating valve is provided between the induced draft fan 6 and the dust removal device 5, and the air flow rate of the induced draft fan can be adjusted according to the air flow pressure and material flow conditions in the system.

[0021] The lower end of the screening device 4 is provided with a first discharge port 9 , and the lower end of the dust removal device 5 is provided with a second discharge port 10 .

[0022] A feed port is provided at the top of the material bin 1 and is equipped with a sealing cover to prevent external impurities from entering the material bin 1 and contaminating the boron carbide powder.

[0023] The first discharge port 9 and the second discharge port 10 are both provided with adjustable valves, which can flexibly control the discharge speed and flow rate of the material according to production requirements, ensuring that the boron carbide powder after screening and dust removal can be discharged in an orderly and quantitative manner.

[0024] The feeding screw machine 2 is equipped with a variable frequency speed regulator for adjusting the material conveying speed according to production requirements to ensure uniform supply and pre-grinding efficiency of the material in the main cabin 3.

[0025] After the induced draft fan 6 is started, sufficient airflow is generated, which is guided into the main engine room 3. In order to control the speed and stability of the airflow, an airflow regulating valve is set between the induced draft fan 6 and the dust removal device 5. By adjusting the opening of the valve, the airflow rate can be accurately adjusted according to the airflow pressure and material flow conditions in the system to ensure the smooth progress of the pre-grinding process and the uniform and continuous delivery of the boron carbide powder in the silo 1 to the main engine room 3. The variable frequency speed regulator equipped with the feeding screw machine 2 allows the material delivery speed to be adjusted according to production needs to ensure that an appropriate amount of material is always maintained in the main engine room 3 for pre-grinding. The material entering the main engine room 3 is fully dispersed and suspended under the action of the high-speed airflow, forming a dynamic pre-grinding environment.

[0026] Within the main engine compartment 3, high-speed airflow not only disperses the material but also directly participates in the pre-grinding process. The airflow impacts and shears the suspended boron carbide powder particles, achieving initial crushing and mixing. This airflow pre-grinding method offers the advantages of low energy consumption and minimal wear. By adjusting the airflow velocity and material conveying speed, the intensity and duration of the pre-grinding can be controlled to achieve the desired pre-grinding effect. The pre-grinded boron carbide powder particles are more uniform and finer, facilitating subsequent screening and dust removal.

[0027] After the pre-grinding is completed, the airflow continues to carry the material particles through the first pipe 7 into the screening device 4. During this process, the airflow not only plays the role of conveying the material, but also helps to further disperse and suspend the material particles, preparing for the screening process.

[0028] The boron carbide grinding premix device in the present application generates a high-speed airflow through the induced draft fan 6, forming a dynamic pre-grinding environment in the main engine room 3. The material is initially crushed and mixed under the impact and shearing action of the airflow. The pre-ground material is then transported by the airflow to the screening device 4 for further processing. The entire pre-grinding process is efficient, energy-saving and environmentally friendly, which significantly improves the processing efficiency and product quality of the boron carbide powder.

[0029] The present application can realize the storage, transportation, pre-grinding, screening and dust removal of boron carbide powder. Specifically, the device uses the airflow generated by the induced draft fan 6 to pre-grind the material in the main cabin 3, and then transports the material to the screening device 4 through a pipeline for screening, and finally enters the dust removal device 5 for dust removal, thereby obtaining boron carbide powder that meets the requirements.

[0030] This application includes the following steps during use:

[0031] Storage materials:

[0032] The boron carbide powder is first stored in a silo 1. A feed port is provided at the top of the silo 1 and is equipped with a sealing cover to prevent external impurities from entering the silo 1 and contaminating the boron carbide powder.

[0033] Conveying materials:

[0034] When the material needs to be processed, the feeding screw machine 2 starts working to transport the boron carbide powder in the silo 1 to the main engine room 3. The feeding screw machine 2 is equipped with a variable frequency speed regulator, which can adjust the material conveying speed according to production needs to ensure the uniform supply of materials in the main engine room 3 and pre-grinding efficiency.

[0035] Pre-ground materials:

[0036] In the main engine room 3, the airflow generated by the induced draft fan 6 pre-grinds the material. This step helps to initially crush and mix the boron carbide powder in preparation for subsequent processing.

[0037] Screening materials:

[0038] After pre-grinding, the material is transported by airflow through the first pipe 7 to the screening device 4, which screens the material to separate boron carbide powders of different particle sizes. A first discharge port is provided at the lower end of the screening device 4 for discharging the screened material.

[0039] Dust removal:

[0040] The screened material is transported by airflow through the second pipe 8 to the dust removal device 5, which further removes impurities and fine particles from the material. A second discharge port is provided at the lower end of the dust removal device 5 for discharging the dust-removed material.

[0041] Air and material flow control:

[0042] During the entire processing process, an airflow regulating valve is provided between the induced draft fan 6 and the dust removal device 5. The valve can adjust the exhaust volume of the induced draft fan 6 according to the airflow pressure and material flow conditions in the system, thereby optimizing the working performance of the entire device.

[0043] Discharge materials:

[0044] Both the first discharge port and the second discharge port are equipped with adjustable valves, which can flexibly control the discharge speed and flow rate of the material according to production needs, ensuring that the boron carbide powder after screening and dust removal can be discharged in an orderly and quantitative manner.

[0045] In summary, the boron carbide grinding premix device of the present application can efficiently produce boron carbide powder that meets the requirements by accurately controlling the material conveying, pre-grinding, screening and dust removal processes.

[0046] The present application significantly improves the processing efficiency of boron carbide powder through automated pre-grinding, screening and dust removal processes. The variable frequency speed regulation function of the feeding screw machine 2 ensures the uniform supply of materials in the main cabin 3, thereby ensuring the stability of the pre-grinding effect. The combined use of the screening device 4 and the dust removal device 5 further improves the purity and uniformity of the product, meeting the needs of different fields for high-quality boron carbide powder.

[0047] The device uses airflow to assist pre-grinding and conveying, reducing mechanical wear and energy consumption. At the same time, by precisely controlling the material conveying speed and screening accuracy, it reduces unnecessary material waste and repeated processing, thereby reducing production costs. In addition, the flexible use of the airflow regulating valve further optimizes the utilization rate of the airflow and improves energy efficiency.

[0048] The sealing cover design on the top of the silo 1 effectively prevents the entry of external impurities, ensures the purity of the material, and simplifies cleaning and maintenance. The variable frequency speed regulator of the feeding screw conveyor 2 allows the operator to easily adjust the material conveying speed according to actual needs, improving the convenience of operation. In addition, the structural design of the entire device is reasonable, which facilitates maintenance and overhaul, reducing the difficulty of operation and safety risks.

[0049] The efficient operation of the dust removal device 5 effectively reduces dust emissions during the production process, which meets environmental protection requirements. This not only protects the production environment, but also reduces pollution to the surrounding environment.

[0050] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A boron carbide grinding premix device, characterized in that: It includes a silo, a feeding screw, a main engine cabin, a screening device, a dust removal device, and an induced draft fan. The silo is used to store boron carbide powder. A feeding screw is provided on one side of the silo. The feeding screw is used to transport the material falling from the silo to the main engine cabin. The main engine cabin and the screening device are connected through a first pipe, and the screening device and the dust removal device are connected through a second pipe. An induced draft fan is connected to one side of the dust removal device. The induced draft fan generates an airflow to pre-grind the material in the main engine cabin. After the pre-grinding is completed, the airflow is transported to the screening device through the first pipe for screening. After the screening is completed, the airflow is transported to the dust removal device through the second pipe for dust removal.

2. A boron carbide grinding premix device according to claim 1, characterized in that: An airflow regulating valve is provided between the induced draft fan and the dust removal device, and the airflow volume of the induced draft fan can be adjusted according to the airflow pressure and material flow conditions in the system.

3. The boron carbide premix grinding device according to claim 1, characterized in that: The lower end of the screening device is provided with a first discharge port, and the lower end of the dust removal device is provided with a second discharge port.

4. The boron carbide grinding premix device according to claim 1, characterized in that: A feed port is provided on the top of the silo and is equipped with a sealing cover to prevent external impurities from entering the silo and contaminating the boron carbide powder.

5. The boron carbide premix grinding device according to claim 3, characterized in that: The first discharge port and the second discharge port are both provided with adjustable valves, which can flexibly control the discharge speed and flow rate of the material according to production needs, ensuring that the boron carbide powder after screening and dust removal can be discharged in an orderly and quantitative manner.

6. The boron carbide premix grinding device according to claim 1, characterized in that: The feeding screw is equipped with a variable frequency speed regulator for adjusting the material conveying speed according to production requirements to ensure uniform supply and pre-grinding efficiency of the material in the main cabin.

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