Rock salt sampling machine for preparing rock salt sample

Abstract

The rock salt sampling machine comprises a rack, a crushing assembly, a pipeline, a grinding assembly, a screening assembly, a collecting assembly and a control assembly, the rack is made of a high-strength metal material and is of a cabinet structure, cabinet doors are rotationally connected to the four faces of the rack, the crushing assembly is installed on the upper surface of the rack, and the pipeline is installed on the upper surface of the rack. An outlet of the crushing assembly is connected with one end of the pipeline, the other end of the pipeline is connected with the grinding assembly, the grinding assembly is located in the rack cabinet and located below the crushing assembly, the screening assembly is located in the rack cabinet and located below a discharging port of the grinding assembly, and the collecting assembly is connected with the discharging port of the screening assembly. The sample preparation machine can efficiently and accurately prepare a rock salt sample which is good in uniformity and meets experimental requirements, the sample preparation cost is reduced, the operation process is simplified, the stability and reliability of equipment are improved, and the sample preparation requirements in the rock salt mining, research and production process are met.

Description

Technical Field

[0001] The invention relates to the technical field of rock salt processing equipment, and in particular to a rock salt sample making machine for preparing rock salt samples. Background Art

[0002] Saline soil is a type of soil containing a high concentration of soluble salt ions, mainly including salinized soil, alkaline soil, saline soil and alkaline soil. The formation of saline soil is a complex process involving many factors such as geology, topography, climate and human activities. Qinghai is the third largest saline soil distribution area in my country. Buildings in this area have the following problems:

[0003] First, the bearing capacity of the foundation changes. Since saline soil has the characteristics of solubility, expansion and corrosion, its bearing capacity of the foundation changes with the change of seasons and climate.

[0004] Second, the damage to building structures. The sulfate crystals in saline soil expand in volume when they dissolve, causing structural damage to the foundation soil, reducing its strength and forming loose saline soil. This change can cause cracks, tilts or structural corrosion in buildings. The corrosiveness of saline soil can cause chemical reactions in building foundation materials such as concrete and steel bars, causing physical damage.

[0005] Third, it shortens the service life of buildings. The strong corrosiveness of saline soil will have a negative impact on the foundation of buildings, thereby shortening the service life of buildings. The soluble salt in the saline soil dissolves in water and penetrates into the building foundation through capillary phenomena, causing the foundation to expand and crack, and ultimately causing physical and chemical damage to the building.

[0006] In view of the above problems, relevant analysis and research are needed before the construction of buildings in saline soil areas in order to understand the specific information and take corresponding measures. Therefore, in the process of rock salt mining, research and production of related products, various performance tests and analyses of rock salt are required, which requires the preparation of representative rock salt samples that meet experimental standards.

[0007] At present, there are many problems in the traditional rock salt sample preparation method, such as low sample preparation efficiency, poor sample uniformity, complex operation and high skill requirements for operators. Some existing sample preparation equipment either cannot meet the high-precision sample preparation requirements, or have complex structures and high costs, which are not conducive to widespread application in actual production and research. Therefore, it is necessary to develop a new type of rock salt sample preparation machine to solve the problems existing in the existing technology. Summary of the invention

[0008] In order to overcome the above problems, the purpose of the present invention is to provide a rock salt sample making machine for preparing rock salt samples, which can efficiently and accurately prepare rock salt samples with good uniformity and meet experimental requirements, while reducing the sample preparation cost, simplifying the operation process, and improving the stability and reliability of the equipment to meet the sample preparation needs in rock salt mining, research and production processes.

[0009] The technical solution adopted by the present invention is:

[0010] A rock salt sample making machine for preparing rock salt samples, comprising a frame, a crushing assembly, a pipeline, a grinding assembly, a screening assembly, a collecting assembly, and a control assembly. The frame is made of high-strength metal material, and the frame is a cabinet structure, and cabinet doors are rotatably connected on four sides. The crushing assembly is installed on the upper surface of the frame, and the outlet of the crushing assembly is connected to one end of the pipeline, and the other end of the pipeline is connected to the grinding assembly. The grinding assembly is located inside the frame cabinet and below the crushing assembly. The screening assembly is located inside the frame cabinet and below the grinding assembly discharge port. The collecting assembly is connected to the screening assembly discharge port and is located inside the cabinet. The control assembly connects the crushing assembly, the grinding assembly, the screening assembly, and the collecting assembly.

[0011] As a further description of the present invention, four height-adjustable anchor bolts are installed at the four corners of the bottom of the frame.

[0012] As a further description of the present invention, the crushing assembly includes a crushing chamber, a crushing tool, and a drive motor. The crushing chamber is made of wear-resistant alloy steel and is designed with a crushing tooth structure inside. The crushing tool is installed in the crushing chamber. The crushing tool is connected to the drive motor through a coupling, and the drive motor is located inside the frame cabinet.

[0013] As a further description of the present invention, the driving motor adopts a variable frequency speed regulating motor, the material of the crushing tool is hard alloy, the crushing assembly is rotatably connected to a protective cover, a handle is designed on the upper surface of the protective cover, and the lower surface of the protective cover and the upper surface of the crushing chamber are connected by a magnet.

[0014] As a further description of the present invention, the grinding assembly includes a grinding chamber, a grinding disc, a grinding ball,

[0015] Pulley and speed regulating motor, the grinding chamber is made of ceramic material, the grinding balls and grinding disc are made of agate, the grinding chamber is located below the pipeline, the grinding disc is located below the grinding chamber, the grinding balls are located inside the grinding disc, the diameter of the grinding chamber is larger than the diameter of the pipeline, a through hole is provided in the middle of the grinding chamber for collecting the crushed materials generated by the crushing assembly, the discharge port of the pipeline is connected to the through hole above the grinding chamber, an inlet is provided above the grinding disc, the through hole below the grinding chamber is connected to the inlet above the grinding disc, the middle of the grinding disc is a through hole, the grinding balls are located inside the grinding disc, the diameter of the grinding balls is larger than the diameter of the through hole in the middle of the grinding disc, a groove is provided on the outside of the grinding disc, one end of the belt of the pulley is located in the groove, and the other end is connected to the speed regulating motor.

[0016] As a further description of the present invention, one end of the pipe connected to the grinding assembly is a funnel-shaped structure.

[0017] As a further description of the present invention, the screening component includes a vibrating screen and a vibrating motor. The vibrating screen is made of stainless steel and includes various models according to the different sizes of the screen apertures. The vibrating screen is connected to the lower discharge port of the grinding disc through a grinding pipe. The vibrating motor is connected to the vibrating screen and is located on one side of the vibrating screen. By generating high-frequency vibration, the rock salt powder is screened on the screen of the vibrating screen, and the fine powder passes through the screen and falls into the collection component below, while the coarse particles remain on the screen.

[0018] As a further description of the present invention, the screening assembly further comprises a return pipe, one end of which is connected to the side of the vibrating screen, and the other end of which is connected to the pipe below the crushing assembly.

[0019] As a further description of the present invention, the collection component includes a collection box and a dust suction device. The collection box is made of transparent plastic material. The dust suction device is connected to the top of the collection box. The dust generated during screening is sucked into the bag dust collector for filtration through the exhaust fan.

[0020] As a further description of the present invention, the control component includes a PLC programmable logic controller and a control panel. The PLC programmable logic controller is connected to a drive motor, a speed regulating motor, a vibration motor, a dust suction device, and a control panel. The control panel is provided with a crushing motor speed adjustment knob, a grinding motor speed adjustment knob, a vibrating screen vibration time timer, a vibration motor start button, a sample making machine start button, a sample making machine stop button, and an operation status indicator light.

[0021] Beneficial effects of the present invention:

[0022] The present invention discloses a rock salt sample making machine for preparing rock salt samples, comprising a frame, a crushing component, a pipeline, a grinding component, a screening component, a collecting component and a control component. The sample making machine crushes the mined rock salt crystals through the crushing component, grinds the crushed rock salt into fine powder through the grinding component, finally screens out samples meeting the experimental requirements through the screening component, collects them through the collecting component, and finally uses the obtained samples for analysis and research. The action process of the entire sample making machine is controlled by the control component, and the rock salt samples can be prepared quickly and continuously, which greatly improves the sample making efficiency, meets the needs of large-scale production and research, and greatly improves the sample making efficiency.

[0023] The present invention discloses a rock salt sample making machine for preparing rock salt samples. The crushing component adopts a speed regulating motor to adjust the rotation speed so as to realize accurate control of the crushing process. The grinding disc and grinding balls of the grinding component adopt agate. The agate has high hardness and smooth surface, and can effectively grind the crushed rock salt particles into fine powder so as to ensure the uniformity and particle size requirements of the sample. The vibrating screen of the screening component includes various models according to the different sizes of the screen mesh apertures so as to meet different sample making requirements. The rock salt sample making machine adopts advanced crushing tools, wear-resistant grinding materials and accurate screening system, and can prepare rock salt samples with uniform particle size and high purity, thereby providing a reliable basis for performance testing and analysis of rock salt and improving the accuracy and reliability of experimental data.

[0024] The present invention discloses a rock salt sample making machine for preparing rock salt samples. The control component adopts a PLC programmable logic controller, and parameter setting is achieved through a control panel to realize automated operation of the entire sample making process, thereby reducing the requirement for operator skills and reducing the influence of human factors on sample making quality.

[0025] The present invention discloses a rock salt sample making machine for preparing rock salt samples. The design of the dust suction device on the collecting component effectively reduces dust pollution and improves the working environment. The exhaust fan in the dust suction device sucks the dust generated in the screening process into the bag dust collector for filtering treatment, thereby preventing dust from flying and ensuring the cleanliness of the working environment. At the same time, dust pollution to the rock salt sample is avoided, thereby improving the purity of the sample.

[0026] The present invention discloses a rock salt sample making machine for preparing rock salt samples. The frame is made of high-strength metal material, and the frame is a cabinet structure. The four sides of the frame are rotatably connected with cabinet doors. The design of the cabinet doors is convenient for the inspection and maintenance of the sample making machine and convenient for operators to operate. Four height-adjustable anchor bolts are installed at the four corners of the bottom of the frame to facilitate the adjustment of the position of the equipment, thereby ensuring the stability and reliability of the sample making machine during long-term operation, reducing the repair and maintenance costs of the sample making machine, and increasing its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1The overall structural schematic diagram of a rock salt sample making machine for preparing rock salt samples proposed by the present invention;

[0028] Figure 2 A schematic diagram of the internal structure of a rock salt sample preparation machine for preparing rock salt samples proposed by the present invention;

[0029] Figure 3 A schematic diagram of the structure of a crushing component of a rock salt sample preparation machine for preparing rock salt samples proposed by the present invention;

[0030] Figure 4 A schematic diagram of the structure of a pipeline and a grinding assembly of a rock salt sample preparation machine for preparing rock salt samples proposed by the present invention;

[0031] Figure 5 A schematic diagram of the structure of a screening component and a collecting component of a rock salt sample preparation machine for preparing rock salt samples proposed by the present invention;

[0032] Figure 6 A schematic diagram of the protective cover and crushing chamber structure of a rock salt sample preparation machine for preparing rock salt samples proposed by the present invention;

[0033] Figure 7 The present invention provides a control flow chart of a rock salt sample preparation machine control component for preparing rock salt samples.

[0034] Description of Reference Numerals

[0035] 1-frame, 11-cabinet door, 12-anchor bolt,

[0036] 2-crushing assembly, 21-crushing chamber, 22-crushing tool, 23-driving motor, 24-protective cover, 25-handle,

[0037] 3- Pipeline,

[0038] 4-grinding assembly, 41-grinding chamber, 42-grinding disc, 43-pulley, 44-speed regulating motor, 45-grinding pipe,

[0039] 5-screening assembly, 51-vibrating screen, 52-vibrating motor, 53-return pipe,

[0040] 6-collection assembly, 61-collection box, 62-dust collection device,

[0041] 7-control component, 71-PLC programmable logic controller, 72-control panel. DETAILED DESCRIPTION

[0042] The specific implementation of the present invention is described below in conjunction with the accompanying drawings and embodiments:

[0043] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which the present invention can be implemented. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0044] At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" cited in this specification are only for the convenience of description and are not used to limit the scope of implementation of the present invention. Changes or adjustments to their relative relationships should be regarded as the scope of implementation of the present invention without substantially changing the technical content.

[0045] like Figures 1 to 7 As shown, it shows a specific embodiment of the present invention:

[0046] Embodiment 1

[0047] A rock salt sample making machine for preparing rock salt samples, characterized in that it includes a frame 1, a crushing component 2, a pipeline 3, a grinding component 4, a screening component 5, a collecting component 6, and a control component 7. The frame 1 is made of high-strength metal material, and the frame 1 is a cabinet structure, and its four sides are rotatably connected with cabinet doors 11. The crushing component 2 is installed on the upper surface of the frame, and the outlet of the crushing component 2 is connected to one end of the pipeline 3, and the other end of the pipeline 3 is connected to the grinding component 4. The grinding component 4 is located inside the cabinet of the frame 1, below the crushing component 2, the screening component 5 is located inside the cabinet of the frame 1, below the discharge port of the grinding component 4, the collecting component 6 is connected to the discharge port of the screening component 5, and is located inside the cabinet, and the control component 7 connects the crushing component 2, the grinding component 4, the screening component 5, and the collecting component 6.

[0048] In this embodiment, Figure 1 , Figure 2 As shown, the frame 1 is made of high-strength metal material, has sufficient rigidity and stability, can support the work of various components of the entire sample making machine, and ensure the stability and safety of the rock salt sample making process. The sample making machine crushes the mined rock salt crystals through the crushing component 2, and then grinds the crushed rock salt into fine powder through the grinding component 4. Finally, the screening component 5 screens out the samples that meet the experimental requirements and collects them using the collecting component 6. Finally, the obtained samples are used for analysis and research. The action process of the entire sample making machine is controlled by the control component 7, which can quickly and continuously prepare rock salt samples, greatly improving the sample preparation efficiency, meeting the needs of large-scale production and research, and greatly improving the sample preparation efficiency.

[0049] In this embodiment, the frame 1 is a cabinet structure, and cabinet doors 11 are rotatably connected on four sides. The arrangement of the cabinet doors 11 facilitates the inspection and maintenance of the sample making machine and is convenient for operators to operate. Specifically, when an abnormal problem occurs in a component and needs to be dealt with, the cabinet door 11 on the corresponding side is opened to complete the inspection and maintenance. The operation is simple and convenient.

[0050] Specifically, four height-adjustable anchor bolts 12 are installed at the four corners of the bottom of the frame 1 .

[0051] In this embodiment, four height-adjustable anchor bolts 12 are installed at the four corners of the bottom of the frame 1 to facilitate the adjustment of the equipment position, ensure the stability and reliability of the prototype making machine during long-term operation, reduce the repair and maintenance costs of the prototype making machine, and increase its service life.

[0052] Specifically, the crushing assembly 2 includes a crushing chamber 21, a crushing tool 22, and a drive motor 23. The crushing chamber 21 is made of wear-resistant alloy steel and is designed with a crushing tooth structure inside. The crushing tool 22 is installed in the crushing chamber 21. The crushing tool 22 is connected to the drive motor 23 through a coupling. The drive motor 23 is located inside the cabinet of the frame 1.

[0053] Specifically, the driving motor 23 adopts a variable frequency speed regulating motor, the crushing tool 22 is made of hard alloy, a protective cover 24 is rotatably connected above the crushing component 2, a handle 25 is designed on the upper surface of the protective cover 24, and the lower surface of the protective cover 24 and the upper surface of the crushing chamber 21 are connected by a magnet.

[0054] In this embodiment, Figure 3 , Figure 4 As shown, the crushing chamber 21 is located on the upper surface of the frame 1. When using the sample preparation machine to prepare rock salt samples, rock salt crystals are added from the upper surface of the crushing chamber 21. The rock salt crystals entering the crushing chamber 21 are crushed under the rotation of the crushing tool 22. The crushing tool 22 rotates under the action of the driving motor 23, and is squeezed by the crushing tooth structure in the crushing chamber 21 to achieve crushing. The crushing chamber 21 is made of wear-resistant alloy steel and is designed with a special crushing tooth structure inside, which can effectively coarse and medium crush the rock salt, thereby greatly improving the sample preparation efficiency.

[0055] In this embodiment, the driving motor 23 adopts a variable frequency speed regulating motor. In actual use, the rotation speed is adjusted according to the hardness and crushing requirements of the rock salt to achieve precise control of the crushing process and ensure the preparation quality of the rock salt sample.

[0056] In the present embodiment, the material of the crushing tool 22 is cemented carbide, which has high hardness, high wear resistance and good cutting performance, and can ensure that the crushing effect meets the use requirements while ensuring the service life of the tool.

[0057] In this embodiment, Figure 6 As shown, a protective cover 24 is rotatably connected to the top of the crushing assembly 2, and a handle 25 is designed on the upper surface of the protective cover 24. When in use, the protective cover 24 can be conveniently opened with the help of the handle 25. Then, under the attraction of the magnet, the protective cover 24 is re-covered on the upper surface of the crushing chamber 21 to ensure that the sample is crushed in a sealed space during the use of the sample making machine, thereby ensuring safe use.

[0058] Specifically, the grinding assembly 4 includes a grinding chamber 41, a grinding disc 42, grinding balls, a pulley 43, and a speed regulating motor 44. The grinding chamber 41 is made of ceramic material, and the grinding balls and the grinding disc 42 are made of agate. The grinding chamber 41 is located below the pipe 3, and the grinding disc 42 is located below the grinding chamber 41. The grinding balls are located inside the grinding disc 42. The diameter of the grinding chamber 41 is larger than the diameter of the pipe 3. A through hole is provided in the middle of the grinding chamber 41 for collecting the crushed materials generated by the crushing assembly 2. The discharge port of the pipe 3 is connected to the through hole above the grinding chamber 41. A feed port is provided above the grinding disc 42. The through hole below the grinding chamber 41 is connected to the feed port above the grinding disc 42. There is a through hole in the middle of the grinding disc 42. The grinding balls are located inside the grinding disc 42. The diameter of the grinding balls is larger than the diameter of the through hole in the middle of the grinding disc 42. A groove is provided on the outside of the grinding disc 42. One end of the belt of the pulley 43 is located in the groove, and the other end is connected to the speed regulating motor 44.

[0059] In this embodiment, Figure 4 As shown, the pipeline 3 is used to transfer the sample crushed by the crushing component 2 to the grinding component 4, and the grinding chamber 41 is used to collect the sample after the initial crushing. The sample in the grinding chamber 41 rubs against the grinding balls during the rotation of the grinding disk 42 to prepare the rock salt sample. The action process of the grinding component 4 is that the speed regulating motor 44 rotates, and the pulley 43 connected to the speed regulating motor 44 rotates. Under the action of the pulley 43, the grinding disk 42 rotates, and at this time, the grinding balls inside the grinding disk 42 interact with the grinding disk 42 to achieve sample preparation.

[0060] In this embodiment, the grinding chamber 41 is made of ceramic material, which has good wear resistance and chemical stability, and can prevent the rock salt sample from being contaminated during the grinding process. The grinding ball and the grinding disc 42 are made of agate, which has high hardness and smooth surface, and can effectively grind the crushed rock salt particles into fine powder to ensure the uniformity and particle size requirements of the sample. The grinding disc 42 rotates under the action of the pulley 43 and the speed regulating motor 44, and the grinding speed and time are controlled by adjusting the speed of the speed regulating motor 44.

[0061] Specifically, one end of the pipeline 3 connected to the grinding assembly 4 is a funnel-shaped structure.

[0062] In this embodiment, the pipeline 3 is designed as a funnel-shaped structure to facilitate the effective transmission of the sample after being crushed by the crushing assembly 2 and avoid blockage.

[0063] Specifically, the screening component 5 includes a vibrating screen 51 and a vibrating motor 52. The vibrating screen 51 is made of stainless steel and includes various models according to the size of the screen aperture. The vibrating screen 51 is connected to the lower end discharge port of the grinding disc 42 through a grinding pipe 45. The vibrating motor 52 is connected to the vibrating screen 51 and is located on one side of the vibrating screen 51. By generating high-frequency vibration, the rock salt powder is screened on the screen of the vibrating screen 51, and the fine powder falls into the collecting component 6 below through the screen, while the coarse particles remain on the screen.

[0064] Specifically, the screening assembly 5 further includes a return pipe 53 , one end of which is connected to the side of the vibrating screen 51 , and the other end of which is connected to the pipe 3 below the crushing assembly 1 .

[0065] In this embodiment, Figure 5 As shown, the screening component 5 is used to screen the rock salt powder ground by the grinding component 4 to obtain a sample with a particle size that meets the experimental requirements. The working process is that the upper end of the vibrating screen 51 is connected to the lower end discharge port of the grinding disc 42 through the grinding pipe 45, and the ground rock salt powder enters the screening device through the grinding pipe 45. The vibration motor 52 drives the vibrating screen 51 to vibrate at a high frequency, so that the rock salt powder is screened on the screen of the vibrating screen 51, and the fine powder that meets the particle size requirements falls into the collection box 61 of the collecting device 6 through the screen, while the coarse particles that do not pass through the screen are returned to the grinding component 4 through the return pipe 53 for re-grinding until all the rock salt powder reaches the particle size required by the experiment.

[0066] In this embodiment, the vibrating screen 51 includes various models according to the different sizes of the screen apertures. According to actual usage requirements, the vibrating screen 51 is equipped with screens of different apertures such as 20 mesh, 40 mesh, 60 mesh, and 80 mesh, so as to improve the versatility of application of the rock salt sample making machine.

[0067] Specifically, the collecting assembly 6 includes a collecting box 61 and a dust collecting device 62. The collecting box 61 is made of transparent plastic material. The dust collecting device 62 is connected to the top of the collecting box 61. The dust generated during screening is sucked into the bag dust collector for filtering through the exhaust fan.

[0068] In this embodiment, Figure 5 As shown, the collecting box 61 is made of transparent plastic material, which is convenient for observing the collection of samples, intuitive and accurate. The dust suction device 62 is connected to the top of the collecting box 61. The dust generated in the screening process is sucked into the bag dust collector for filtering through the exhaust fan to prevent dust from flying and ensure the cleanliness of the working environment. At the same time, it avoids dust pollution to the rock salt sample and improves the purity of the sample.

[0069] Specifically, the control component 7 includes a PLC programmable logic controller 71 and a control panel 72. The PLC programmable logic controller 71 is connected to a drive motor 23, a speed regulating motor 44, a vibration motor 52, a dust collecting device 62, and a control panel 72. The control panel 72 is provided with a crushing motor speed adjustment knob, a grinding motor speed adjustment knob, a vibration screen vibration time timer, a vibration motor start button, a sample making machine start button, a sample making machine stop button, and an operation status indicator light.

[0070] In this embodiment, Figure 7 As shown, the control component 7 adopts a PLC programmable logic controller as a core control unit to realize automatic control of the entire sample preparation process. The PLC programmable logic controller 71 is installed on the inner side of a cabinet door 11 on one side, and the control panel 72 is installed on the outer side of the cabinet door 11. Operations and parameter settings are performed through the control panel 72. On the control panel 72, there are a crushing motor speed adjustment knob, a grinding motor speed adjustment knob, a vibration screen vibration time timer, a sample preparation start button, a sample preparation stop button, and operating status indicator lights of various devices. The operator can conveniently set and adjust the operating parameters of various devices, such as crushing speed, grinding time, screening time, etc., through the control panel 72 according to the properties of the rock salt and the sample preparation requirements, so as to realize precise control and automatic operation of the sample preparation process.

[0071] In this embodiment, the control component 7 also has fault diagnosis and alarm functions, and can monitor the operating status of each device in real time, such as abnormal conditions such as motor overload, high temperature, pipe blockage, etc. Once a fault occurs, the system will immediately send out an audible and visual alarm signal, and display the fault type and location on the control panel 72, so that the operator can troubleshoot the fault in time, ensuring the safe operation of the equipment and the smooth progress of sample preparation.

[0072] In this embodiment, the working process of the rock salt sample making machine is as follows:

[0073] 1. Put the rock salt raw material to be sampled into the crushing chamber 21 of the crushing assembly 2, start the driving motor 23 of the crushing assembly 2, and the driving motor 23 drives the crushing cutter 22 to rotate at high speed to crush the rock salt. During the crushing process, the rock salt is crushed into particles of appropriate size by adjusting the speed and crushing time of the driving motor 23. The initially crushed rock salt particles fall into the grinding chamber 41 of the grinding assembly 4 through the pipe 3.

[0074] 2. In the grinding assembly 4, the grinding disc 42 rotates driven by the speed regulating motor 44, and the grinding balls collide and rub against the rock salt particles and the grinding disc to further grind the rock salt particles into fine powder. During the grinding process, the grinding time and grinding speed can be adjusted as needed to achieve the desired sample particle size.

[0075] 3. The ground rock salt powder enters the screening component 5, and the vibration motor 52 drives the vibration screen 51 to vibrate at a high frequency, so that the rock salt powder is screened on the screen of the vibration screen 51, and the fine powder that meets the particle size requirements passes through the screen and falls into the collection box 61 of the collection device 6, while the coarse particles that do not pass through the screen are returned to the grinding component 4 through the return pipe 53 for re-grinding until all the rock salt powder reaches the particle size required by the experiment.

[0076] 4. During the entire sample preparation process, the dust suction device 62 works continuously to suck the generated dust into the bag dust collector for treatment, ensuring the cleanliness of the working environment and the purity of the sample.

[0077] Embodiment 2

[0078] The following is a specific embodiment of this rock salt sample making machine:

[0079] A batch of rock salt raw materials with moderate hardness are selected and placed in the crushing chamber 21 of the crushing component 2. The speed of the drive motor 23 is set to 800r / min, the crushing time is set to 5min, and the crushing component is started to crush the rock salt into particles with a particle size of about 2-5mm.

[0080] The crushed particles fall into the grinding chamber 41 of the grinding assembly 4 through the pipeline 3 , the speed of the speed regulating motor 44 is set to 600 r / min, the grinding time is set to 10 min, and the ground powder enters the screening assembly 5 .

[0081] A vibrating screen 51 with a 60-mesh screen is selected for screening, and the vibration time of the vibrating screen 51 is set to 3 minutes. After screening, the rock salt sample that meets the particle size requirements is collected in the collection box 61, and the coarse particles that do not pass through the screen are returned to the grinding assembly 4 for re-grinding.

[0082] The entire sample preparation process is completed under the automatic control of the PLC control system. The prepared rock salt samples have uniform particle size and high purity, meeting the requirements of subsequent experiments for rock salt samples.

[0083] Embodiment 3

[0084] On the basis of the above-mentioned embodiment 1, the crushing component 2 can also adopt a hydraulically driven jaw crusher to replace the existing electric crushing tool structure, and provide a strong crushing force through the hydraulic system. It is suitable for crushing rock salt with higher hardness, and has the advantages of large crushing ratio and high efficiency. However, the disadvantage is that the equipment cost is high and the maintenance is relatively complicated.

[0085] Alternatively, an impact crusher can be used to crush the rock salt with a high-speed rotating hammer, which can obtain finer crushed particles and reduce the subsequent grinding workload. However, the hammer of the impact crusher wears quickly and needs to be replaced regularly, and the operating noise is relatively loud.

[0086] Embodiment 4

[0087] On the basis of the above-mentioned embodiment 1, the grinding component 4 can also adopt a planetary ball mill to replace the existing grinding disc 42 and grinding ball structure. The planetary ball mill uses multiple grinding tanks to make the grinding balls produce strong impact and grinding effects on the rock salt under the composite motion of revolution and rotation, which can achieve more efficient and more uniform grinding effects. It is particularly suitable for preparing nano-level rock salt powder, but the price of the planetary ball mill is relatively expensive and the equipment volume is large.

[0088] You can also consider using a jet mill, which uses high-speed airflow to make the rock salt particles collide and rub against each other to achieve the purpose of crushing. It has the advantages of high grinding efficiency, fine product particle size and narrow distribution, and can be operated in a sterile environment. It is suitable for the preparation of rock salt samples with extremely high purity requirements. However, the energy consumption of the jet mill is relatively large and the requirements for the air source are also relatively high.

[0089] Embodiment 5

[0090] On the basis of the above-mentioned embodiment 1, the screening component 5 can also use an ultrasonic vibrating screen instead of a traditional vibrating screen. The ultrasonic vibrating screen applies high-frequency ultrasonic vibration on the screen to make the rock salt powder pass through the screen more easily, effectively solving the screening difficulties caused by factors such as material viscosity and agglomeration, improving the screening efficiency and accuracy, and is particularly suitable for the screening of fine particles and sticky materials. However, the equipment cost and maintenance cost of the ultrasonic vibrating screen are relatively high.

[0091] You can also use a rotary vibrating screen, which uses a special vibration motor to generate three-dimensional vibration, so that the material can make a spiral jumping motion on the screen surface to achieve the screening process. The rotary vibrating screen has the advantages of small size, light weight, high precision, and high screening efficiency. It is suitable for small-scale rock salt sample preparation. However, its processing capacity is relatively limited, and it may not be suitable for large-scale sample preparation needs.

[0092] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.

[0093] Many other changes and modifications may be made without departing from the concept and scope of the present invention.It should be understood that the present invention is not limited to the specific embodiments, and the scope of the present invention is defined by the appended claims.

Claims

1. A rock salt sample making machine for preparing rock salt samples, characterized in that: The invention comprises a frame (1), a crushing component (2), a pipeline (3), a grinding component (4), a screening component (5), a collecting component (6), and a control component (7). The frame (1) is made of high-strength metal material. The frame (1) is a cabinet structure, and cabinet doors (11) are rotatably connected on four sides. The crushing component (2) is mounted on the upper surface of the frame. The outlet of the crushing component (2) is connected to one end of the pipeline (3), and the other end of the pipeline (3) is connected to the grinding component (4). The grinding component (4) is located inside the cabinet of the frame (1) and below the crushing component (2). The screening component (5) is located inside the cabinet of the frame (1) and below the discharge port of the grinding component (4). The collecting component (6) is connected to the discharge port of the screening component (5) and is located inside the cabinet. The control component (7) is connected to the crushing component (2), the grinding component (4), the screening component (5), and the collecting component (6).

2. A rock salt sample making machine for preparing rock salt samples according to claim 1, characterized in that: Four height-adjustable foundation bolts (12) are installed at the four corners of the bottom of the frame (1).

3. A rock salt sample making machine for preparing rock salt samples according to claim 1, characterized in that: The crushing assembly (2) comprises a crushing chamber (21), a crushing tool (22), and a driving motor (23); the crushing chamber (21) is made of wear-resistant alloy steel and is internally provided with a crushing tooth structure; the crushing tool (22) is installed in the crushing chamber (21); the crushing tool (22) is connected to the driving motor (23) via a coupling; and the driving motor (23) is located inside a cabinet of the frame (1).

4. A rock salt sample making machine for preparing rock salt samples according to claim 3, characterized in that: The driving motor (23) is a variable frequency speed regulating motor, the crushing cutter (22) is made of hard alloy, a protective cover (24) is rotatably connected above the crushing assembly (2), a handle (25) is designed on the upper surface of the protective cover (24), and the lower surface of the protective cover (24) and the upper surface of the crushing chamber (21) are connected via a magnet.

5. A rock salt sample making machine for preparing rock salt samples according to claim 1, characterized in that: The grinding assembly (4) comprises a grinding chamber (41), a grinding disc (42), a grinding ball, a pulley (43), and a speed regulating motor (44); the grinding chamber (41) is made of ceramic material; the grinding balls and the grinding disc (42) are made of agate; the grinding chamber (41) is located below the pipe (3); the grinding disc (42) is located below the grinding chamber (41); the grinding balls are located inside the grinding disc (42); the diameter of the grinding chamber (41) is greater than the diameter of the pipe (3); a through hole is opened in the middle of the grinding chamber (41) for crushing the assembly (2) The generated broken materials are collected, the discharge port of the pipe (3) is connected to the through hole above the grinding chamber (41), the feeding port is arranged above the grinding disc (42), the through hole below the grinding chamber (41) is connected to the feeding port above the grinding disc (42), the grinding disc (42) has a through hole in the middle, the grinding ball is located inside the grinding disc (42), the diameter of the grinding ball is larger than the diameter of the through hole in the middle of the grinding disc (42), a groove is arranged on the outside of the grinding disc (42), one end of the belt of the pulley (43) is located in the groove, and the other end is connected to the speed regulating motor (44).

6. A rock salt sample making machine for preparing rock salt samples according to claim 1, characterized in that: One end of the pipeline (3) connected to the grinding assembly (4) is a funnel-shaped structure.

7. A rock salt sample making machine for preparing rock salt samples according to claim 1, characterized in that: The screening component (5) comprises a vibrating screen (51) and a vibrating motor (52). The vibrating screen (51) is made of stainless steel. The vibrating screen (51) includes various models according to the size of the screen mesh aperture. The vibrating screen (51) is connected to the lower end discharge port of the grinding disc (42) through a grinding pipe (45). The vibrating motor (52) is connected to the vibrating screen (51) and is located on one side of the vibrating screen (51). By generating high-frequency vibration, the rock salt powder is screened on the screen of the vibrating screen (51). Fine powder passes through the screen and falls into the collecting component (6) below, while coarse particles remain on the screen.

8. A rock salt sample making machine for preparing rock salt samples according to claim 7, characterized in that: The screening assembly (5) further comprises a return pipe (53), one end of which is connected to the side of the vibrating screen (51), and the other end of which is connected to the pipe (3) below the crushing assembly (1).

9. A rock salt sample making machine for preparing rock salt samples according to claim 1, characterized in that: The collecting assembly (6) comprises a collecting box (61) and a dust collecting device (62). The collecting box (61) is made of a transparent plastic material. The dust collecting device (62) is connected to the top of the collecting box (61) and sucks the dust generated during screening into a bag filter for filtering through an exhaust fan.

10. A rock salt sample making machine for preparing rock salt samples according to claim 1, characterized in that: The control component (7) comprises a PLC programmable logic controller (71) and a control panel (72). The PLC programmable logic controller (71) is connected to a drive motor (23), a speed regulating motor (44), a vibration motor (52), a dust collecting device (62), and a control panel (72). The control panel (72) is provided with a crushing motor speed regulating knob, a grinding motor speed regulating knob, a vibration screen vibration time timer, a vibration motor start button, a sample making machine start button, a sample making machine stop button, and an operation status indicator light.

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