Sanitary sampling equipment for solid particle material silo

Abstract

Sanitary sampling equipment for a solid particle material silo is an individual device and comprises a sampling device, a sampling outer cylinder, a sampling inner cylinder, an air closing device, a fixing hole, a fixing plate, a locking device, a discharging device and an operation connecting rod, the sampling outer cylinder comprises a sampling inner cylinder, and the sampling device is communicated with the sampling outer cylinder and the sampling inner cylinder; the air closing device is arranged at the left end of the sampling inner cylinder, the locking device is arranged at the right ends of the sampling outer cylinder and the sampling inner cylinder and connected with the sampling outer cylinder and the sampling inner cylinder, and the discharging device is arranged at the lower parts of the right ends of the sampling outer cylinder and the sampling inner cylinder; the operation connecting rod is arranged at the rightmost end and is connected with the locking device; the fixing plate is arranged in the middle of the sampling outer cylinder; the fixing hole is formed in the fixing plate; the sampling device is connected with a target silo needing to be sampled through the fixing plate and the fixing holes.

Description

Technical Field

[0001] The invention relates to food and medicine industries, and in particular to a sanitary sampling device suitable for a solid particle material silo with a working pressure greater than 0 MPa and less than 0.1 MPa. Background Art

[0002] Solid particulate materials often need to be sampled and analyzed during industrial production and storage to ensure that their quality, composition and other characteristics meet the requirements. Sampling is particularly important in silos of powders, particles and bulk materials.

[0003] Sampling is the first step in monitoring material quality. It can detect problems such as impurities, moisture or agglomeration in a timely manner and ensure the quality of the final product.

[0004] Through sampling and analysis, reliable data on material characteristics can be obtained, providing a basis for optimizing the production process. For example, understanding the material's fluidity, density, particle size, etc., can help improve the processing flow.

[0005] Certain industries (such as food, pharmaceuticals, chemicals, etc.) have strict regulations on the composition of materials, and regular sampling is an important means to ensure compliance.

[0006] Timely sampling and analysis can help identify potential safety hazards, such as explosion risks or harmful gas releases, so that appropriate measures can be taken.

[0007] There are many different methods for sampling solid particulate materials. Common methods include: Manual sampling: Sampling is usually carried out from different levels and positions of the silo using sampling tools (such as sampling rods, shovels, etc.). This method is low-cost and simple to operate, but the uniformity and representativeness of the sampling are poor.

[0008] Mechanical sampling: Using automatic samplers or vibrating screens to take samples can improve the uniformity and accuracy of sampling. Mechanical sampling can be carried out during the transportation process, avoiding errors that may be introduced during the sampling process.

[0009] Air sampling: In some cases, the gas in the silo can be extracted through the air extraction pipeline to obtain a sample of the particulate matter. This method is suitable for materials with good fluidity and can reduce disturbance to the silo.

[0010] Stratified sampling: For materials with obvious stratified characteristics, the stratified sampling method can be adopted to evenly sample from each layer and then conduct mixed analysis to ensure the representativeness of the sample.

[0011] Dynamic sampling: During material unloading or transfer, real-time sampling can better reflect the actual situation of the material. Although this method is complex, it can improve the representativeness of the sample.

[0012] When sampling in a silo, the following steps are generally followed: Preparation: Confirm the sampling plan and develop a specific sampling plan based on the material characteristics and testing requirements. Prepare the required sampling tools and containers, and ensure that the tools are clean and dry to avoid sample contamination.

[0013] Select sampling locations: Choose appropriate sampling points based on the nature of the material. Sampling is usually required at different levels and locations in the silo to obtain a more comprehensive sample.

[0014] Sampling: Sampling should be carried out using appropriate tools according to the predetermined sampling plan. During the sampling process, disturbance of the material should be avoided as much as possible to ensure the accuracy and representativeness of the sampling.

[0015] Sample handling: Collected samples should be marked and recorded immediately, including information such as sampling time, location, operator, etc. Samples should be sent to the laboratory for analysis as soon as possible to avoid long-term storage that may cause changes in sample properties.

[0016] Data analysis and reporting: Perform necessary physical and chemical tests on samples and record the results. Write a sampling report summarizing the sampling process, analysis results, and possible improvement suggestions.

[0017] Precautions in sampling: Sampling frequency, according to production requirements and material properties, the sampling frequency should be reasonably arranged. For materials with high volatility or easy to deteriorate, the sampling frequency should be increased; Sample uniformity, ensure the cleanliness of sampling tools, avoid cross contamination, and ensure the uniformity and representativeness of samples; Environmental impact, during the sampling process, attention should be paid to the impact of surrounding environmental factors (such as temperature, humidity, etc.) on the sample, and environmental monitoring can be carried out if necessary.

[0018] It can be seen that sampling in solid particle silos is a complex but crucial task. Through reasonable sampling methods and standardized operating procedures, the representativeness and accuracy of samples can be ensured, providing reliable data support for material quality control and process optimization. With the development of industry, the requirements for sampling technology are also increasing. Enterprises should continue to explore and practice to improve the efficiency and accuracy of sampling work, thereby promoting the improvement of overall production levels.

[0019] Currently, in the food and pharmaceutical industries, sampling of solid particulate materials in silos is relatively crude or unrepresentative. It manifests itself in: (1) Some use open manholes on the top of the silo for open sampling. However, this open sampling process greatly increases the risk of human material contamination, including foreign matter mixing, bacterial invasion and humidity changes, which have an uncertain impact on normal production or storage.

[0020] (2) Some use the bottom discharge valve for discharging and sampling. Because the sampling volume is small and the discharge valve is generally large, this sampling method greatly increases unnecessary material loss and reduces the service life of the valve. When the physical and chemical properties of solid granular materials change due to storage height, the bottom material collection has considerable limitations. Summary of the invention

[0021] The present invention provides a sanitary sampling device for a solid particle material silo, which effectively solves the problem of sanitary sampling of the solid particle material silo, avoids the risk of increased man-made material contamination due to open material collection, avoids the frequent non-productive start-up of the discharge valve at the bottom of the silo, and can obtain solid particle materials of a required height in a targeted manner, thereby achieving sanitary sampling of the solid particle materials, and the sampling device can be self-cleaned after each sampling.

[0022] In order to solve the above technical problems, the present invention provides a sanitary sampling device for solid particle material silo, which is an integrated device, including a sampling device, a sampling outer cylinder, a sampling inner cylinder, an air closing device, a fixing hole, a fixing plate, a locking device, a discharging device and an operating connecting rod; The sampling outer cylinder includes a sampling inner cylinder, and the sampling device connects the sampling outer cylinder and the sampling inner cylinder; the air closing device is installed at the left end of the sampling inner cylinder, the locking device is arranged at the right ends of the sampling outer cylinder and the sampling inner cylinder and connected to them, and the discharging device is installed at the lower part of the right ends of the sampling outer cylinder and the sampling inner cylinder; the operating connecting rod is installed at the rightmost end and connected to the locking device; the fixing plate is arranged in the middle of the sampling outer cylinder, and the fixing hole is arranged on the fixing plate; The sampling device is connected to a target silo that needs to be sampled through a fixing plate and a fixing hole.

[0023] The sampling device is a double-layer sleeve type rotating mechanism, which is used for feeding when the inner and outer sleeves rotate and the feeding ports of the inner and outer sleeves overlap.

[0024] The air-locking device is a release device through which clean air is passed, and the release of gas is controlled by a manual or automatic valve.

[0025] The locking device is a sealing mechanism between two sleeves, which can ensure the relative axial rotation of each sleeve.

[0026] The discharging device is a double-layer sleeve type rotating mechanism, which is used for discharging materials when the inner and outer sleeve discharging ports coincide with each other through the rotation of the inner and outer sleeves.

[0027] The control method of the sampling device comprises the following steps: 1) Non-sampling control The device closes the sampling device through a locking device, and the air-locking device maintains the internal air pressure of the sampler; 2) Sampling control The discharge device of the device is connected to the sampling bag or sampling bottle, the discharge device is opened by the locking device, and the air-locking device maintains the internal air pressure of the sampler and the local air pressure of the sampling bag or sampling bottle; The sampling device is opened through the locking device, and the solid particulate material enters the inner cylinder through the sampling device and is connected to the sampling bag or sampling bottle through the discharging device; When the sampling bag or sampling bottle meets the requirements, the sampling device is closed through the locking device, and the sampling bag or sampling bottle is manually sealed, and the sampling is completed; 3) Cleaning control After sampling is completed, the air-locking device cleans the inside of the device. If it is qualified, the discharging device is closed by the locking device, and the cleaning is completed.

[0028] Auxiliary process: ① Connect to clean air externally; ② Prepare suitable sampling bags or sampling bottles to collect samples.

[0029] Compared with the related art, the joint sealing structure for the carbon dioxide refrigeration system provided by the present invention has the following beneficial effects: It effectively solves the problem of sanitary sampling of solid particle silos, avoids the risk of increased material contamination caused by open material collection, and avoids the frequent non-productive start-up of the discharge valve at the bottom of the silo. At the same time, it can obtain solid particle materials at the required height in a targeted manner, and can achieve sanitary sampling of solid particle materials. The sampling equipment can be self-cleaned after each sampling. It can sample solid particle materials that are sensitive to temperature and humidity; With excellent sanitation and safety, the air-locking device is located at the left end of the sampling inner cylinder, which can effectively prevent external pollutants from entering the sampling system and ensure the sanitation and safety during the sampling process. This sealing function is especially suitable for industries with extremely high sanitation requirements such as pharmaceuticals and food; the design of the sampling device, the sampling outer cylinder, and the sampling inner cylinder can effectively avoid cross-contamination between different batches of materials and ensure the reliability of the sampling results; The device is an integrated structure with all components tightly integrated, which simplifies the sampling process, reduces the operation steps and improves the sampling efficiency. Operators can quickly complete sampling without tedious disassembly and cleaning processes; it is connected to the target silo through a fixing plate and fixing holes, which is simple and quick to fix, reducing possible errors and air leakage during sampling and improving the convenience of operation; the setting of the discharge device allows the sampled material to be discharged quickly and safely, avoiding the time loss of additional sample processing after sampling is completed, and improving the overall work efficiency; The sanitary sampling equipment for solid particulate material silos of the present application, through its unique design and many beneficial effects, provides an efficient, safe and convenient solution for sampling work in industrial production, which not only meets the strict requirements of enterprises for product quality control, but also makes positive contributions to improving production efficiency and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of a sanitary sampling device for a solid particle material silo of the present invention; Numbers in the figure: 1-sampling device; 2-sampling outer cylinder; 3-sampling inner cylinder; 4-air closing device; 5-fixing hole; 6-fixing plate; 7-locking device; 8-discharging device; 9-operating connecting rod. DETAILED DESCRIPTION

[0031] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0032] Please refer to Figure 1 , a sanitary sampling device for a solid particle material silo, the sampling device is an integrated device, including a sampling device 1, a sampling outer cylinder 2, a sampling inner cylinder 3, an air closing device 4, a fixing hole 5, a fixing plate 6, a locking device 7, a discharging device 8 and an operating connecting rod 9; The sampling outer cylinder 2 includes a sampling inner cylinder 3, and the sampling device 1 connects the sampling outer cylinder 2 and the sampling inner cylinder 3; the air closing device 4 is installed at the left end of the sampling inner cylinder 3, the locking device 7 is arranged at the right ends of the sampling outer cylinder 2 and the sampling inner cylinder 3 and connected to them, and the discharging device 8 is installed at the lower right end of the sampling outer cylinder 2 and the sampling inner cylinder 3; the operating connecting rod 9 is installed at the rightmost end and connected to the locking device 7; the fixing plate 6 is arranged in the middle of the sampling outer cylinder 2, and the fixing hole 5 is arranged on the fixing plate 6; The sampling device is connected to the target silo to be sampled via the fixing plate 6 and the fixing hole 5 .

[0033] The sampling device 1 is a double-layer sleeve type rotating mechanism, which is used for feeding when the inner and outer sleeves rotate and the feeding ports of the inner and outer sleeves overlap.

[0034] The air-locking device 4 is a release device through which clean air is passed, and the release of gas is controlled by a manual or automatic valve.

[0035] The locking device 7 is a sealing mechanism between two sleeves, which can ensure the relative axial rotation of each sleeve.

[0036] The discharging device 8 is a double-layer sleeve type rotating mechanism, which is used for discharging materials when the inner and outer sleeve discharging ports coincide with each other through the rotation of the inner and outer sleeves.

[0037] The control method of the sampling device comprises the following steps: 1) Non-sampling control The device closes the sampling device 1 through the locking device 7, and the air closing device 4 maintains the internal air pressure of the sampler; 2) Sampling control The device discharge device 8 is connected to the sampling bag or sampling bottle, the discharge device 8 is opened by the locking device 7, and the air closing device 4 maintains the internal air pressure of the sampler and the local air pressure of the sampling bag or sampling bottle; The sampling device 1 is opened by the locking device 7, and the solid particulate material enters the inner cylinder through the sampling device 1 and is connected to the sampling bag or sampling bottle through the discharging device 8; When the sampling bag or sampling bottle meets the requirements, the sampling device 1 is closed by the locking device 7, and the sampling bag or sampling bottle is manually sealed, and the sampling is completed; 3) Cleaning control After the sampling is completed, the air-closing device 4 cleans the inside of the device. After passing the test, the discharging device 8 is closed by the locking device 7, and the cleaning is completed.

[0038] Auxiliary process: ① Connect to clean air externally; ② Prepare suitable sampling bags or sampling bottles to collect samples.

[0039] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A sanitary sampling device for solid particulate material silo, characterized in that: The sampling device is an integrated device, comprising a sampling device (1), a sampling outer cylinder (2), a sampling inner cylinder (3), an air-closing device (4), a fixing hole (5), a fixing plate (6), a locking device (7), a discharging device (8) and an operating connecting rod (9); The sampling outer cylinder (2) comprises a sampling inner cylinder (3); the sampling device (1) is connected to the sampling outer cylinder (2) and the sampling inner cylinder (3); the air-closing device (4) is mounted on the left end of the sampling inner cylinder (3); the locking device (7) is arranged at the right ends of the sampling outer cylinder (2) and the sampling inner cylinder (3) and is connected to them; the discharging device (8) is mounted on the lower part of the right ends of the sampling outer cylinder (2) and the sampling inner cylinder (3); the operating connecting rod (9) is mounted on the rightmost end and is connected to the locking device (7); the fixing plate (6) is arranged in the middle of the sampling outer cylinder (2); the fixing hole (5) is arranged on the fixing plate (6); The sampling device is connected to a target silo that needs to be sampled via a fixing plate (6) and a fixing hole (5).

2. The sanitary sampling device for solid particulate material silo according to claim 1, characterized in that: The sampling device (1) is a double-layer sleeve type rotating mechanism, which is used for feeding when the inner and outer sleeves rotate and the feeding ports of the inner and outer sleeves overlap.

3. The sanitary sampling device for solid particulate material silo according to claim 1, characterized in that: The air-locking device (4) is a release device through which clean air is passed, and the release of gas is controlled by a manual or automatic valve.

4. The sanitary sampling device for solid particulate material silo according to claim 1, characterized in that: The locking device (7) is a sealing mechanism between two sleeves, which can ensure the relative axial rotation of each sleeve.

5. The sanitary sampling device for solid particulate material silo according to claim 1, characterized in that: The discharging device (8) is a double-layer sleeve type rotating mechanism, which is used for discharging materials when the inner and outer sleeve discharging ports overlap by rotating the inner and outer sleeves.

6. The sanitary sampling device for solid particulate material silo according to claim 1, characterized in that: The control method of the sampling device comprises the following steps: 1) Non-sampling control The device closes the sampling device (1) through the locking device (7), and the air closing device (4) maintains the internal air pressure of the sampler; 2) Sampling control The discharge device (8) of the device is connected to the sampling bag or the sampling bottle, the discharge device (8) is opened through the locking device (7), and the air-locking device (4) maintains the internal air pressure of the sampler and the local air pressure of the sampling bag or the sampling bottle; The sampling device (1) is opened through the locking device (7), and the solid particulate material enters the inner cylinder through the sampling device (1) and is connected to the sampling bag or sampling bottle through the discharge device (8); When the sampling bag or the sampling bottle meets the requirements, the sampling device (1) is closed by the locking device (7), and the sampling bag or the sampling bottle is manually sealed, and the sampling is completed; 3) Cleaning control After the sampling is completed, the air-closing device (4) cleans the inside of the device. If it is qualified, the discharging device (8) is closed by the locking device (7), and the cleaning is completed.

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