Automatic pipeline lime powder sampling device

Abstract

The utility model discloses an automatic sampling device for pipeline lime powder, which comprises a lime beating pipeline, a pipeline valve, an induction handle, a proximity switch and an automatic sampling component, the pipeline valve is arranged on the lime beating pipeline, one end of the induction handle is connected with a valve port of the pipeline valve, and the other end of the induction handle is contacted with the proximity switch arranged on the lime beating pipeline. The automatic sampling assembly comprises a sampling pipe and a pneumatic ball valve, one end of the sampling pipe is connected with the ash beating pipeline at the front end of the pipeline valve, and the other end is connected with the pneumatic ball valve. When the pipeline valve is opened, sampling can be automatically started through the pneumatic ball valve, the sampling interval time of the pneumatic ball valve can be preset, sampling is convenient, operation is easy, and safety is high; in addition, the sample obtained through the sampling mode is high in representativeness, and the measurement and calculation accuracy of the sample is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sintering material sampling, in particular to an automatic sampling device for pipeline lime powder. Background Art

[0002] The quality of quicklime used in sintering significantly impacts the quality of sintered ore, directly impacting the stable production of blast furnaces and the quality of molten iron. Therefore, steel mills conduct quality inspections on every incoming truckload of quicklime to ensure it meets sintering production requirements. The results of these inspections serve as both production guidance and supporting batching, and as the basis for final settlement of that truckload's worth of material. Therefore, ensuring a stable and smooth sintering process is crucial for ensuring the quality of incoming lime and providing accurate data support for sintering production.

[0003] Because sintered lime has fine particle size and strong hygroscopic properties, prolonged exposure to open environments can affect its metallurgical properties. Therefore, it must be kept sealed during processing, transportation, and storage to prevent environmental pollution and moisture deterioration. Sintered lime is typically transported to the production site in sealed tank trucks and then transferred to sealed storage silos via high-pressure pipelines. Throughout this process, the lime dust remains sealed, making it difficult to conduct random inspections of lime quality.

[0004] Currently, there are two main methods for sampling lime materials: one is climbing a car to sample, that is, the sampler climbs onto the top of the tank truck, opens the tank mouth, and uses a sampling spoon to sample the top and upper layer. However, the above operation is not only time-consuming and labor-intensive, but also the safety of the sampler cannot be guaranteed during the process of climbing the tank truck, especially during the rainy season, when the stone powder is mixed with rainwater. The operation is even more inconvenient; in addition, the representativeness of the sampling cannot be guaranteed, and basically only the lime on the top of the tank truck can be taken as a test sample. The second method is to sample on the belt under the sintered lime silo (trough), and the sampling unit is calculated by the hourly usage and discharge time. However, since sintered quicklime powder is supplied by multiple units, and the number of quicklime silos is small, the quicklime powder of multiple manufacturers uses the same silo (trough), which inevitably leads to inaccurate measurement and errors, and the representativeness of the sample is not strong. Utility Model Content

[0005] The purpose of the utility model is to provide a pipeline lime powder automatic sampling device which is convenient and safe in sampling and can improve the measurement accuracy, so as to solve the problems in the above background technology that lime samples are prone to inaccurate measurement and errors and the sample is not representative.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A pipeline lime powder automatic sampling device includes a lime pumping pipeline, a pipeline valve, a sensing handle, a proximity switch and an automatic sampling component. The pipeline valve is arranged on the lime pumping pipeline, one end of the sensing handle is connected to the valve port of the pipeline valve, and the other end is connected to the proximity switch arranged on the lime pumping pipeline. The automatic sampling component includes a sampling tube and a pneumatic ball valve. One end of the sampling tube is connected to the lime pumping pipeline at the front end of the pipeline valve, and the other end is connected to the pneumatic ball valve.

[0008] Preferably, one end of the sampling tube connected to the dust-making pipe is inserted upward into the dust-making pipe, and one end of the sampling tube inserted into the dust-making pipe is provided with a material taking port facing the incoming material direction.

[0009] Preferably, the material taking port is a semicircular opening structure.

[0010] Preferably, the automatic sampling assembly includes a discharge chute and a sample storage bin, one end of the discharge chute is connected to the pneumatic ball valve, and the other end is connected to the sample storage bin.

[0011] Preferably, the sample storage bin is provided with a material receiving barrel, and one end of the discharge chute passes through the sample storage bin and extends into the material receiving barrel.

[0012] Preferably, a door is installed on the wall of the sample storage bin.

[0013] Preferably, the pneumatic ball valve is electrically connected to the proximity switch.

[0014] Preferably, one end of the dust removal pipe is connected to a dust removal interface.

[0015] Compared with the existing technology, the beneficial effects of the utility model are: when the pipeline valve is opened, sampling can be automatically started through the cooperation of the proximity switch and the pneumatic ball valve, and the sampling interval of the pneumatic ball valve can also be preset. Sampling is convenient, the operation is simple, the labor intensity of the sampling personnel is reduced, and the safety is high; and the samples obtained by the above sampling method are more representative, which improves the measurement accuracy of the samples and solves the problems of the existing manual climbing sampling that is time-consuming and labor-intensive, the safety cannot be guaranteed, and the sampling representativeness is not strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the automatic sampling device for lime powder in pipelines of the utility model;

[0017] Figure 2 This is a structural diagram of the sampling tube material outlet of the utility model.

[0018] The markings in the figure correspond to the following:

[0019] 1. Ash removal interface; 2. Compressed air pipe; 3. Material discharge chute; 4. Sample storage bin; 5. Pneumatic ball valve; 6. Ash removal pipeline; 7. Pipeline valve; 8. Induction handle; 9. Proximity switch; 10. Sampling tube. DETAILED DESCRIPTION

[0020] The following will be combined with the accompanying 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 the embodiments. 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.

[0021] See also Figure 1 A pipeline lime powder automatic sampling device includes a lime mixing pipeline 6, a pipeline valve 7, a sensing handle 8, a proximity switch 9, and an automatic sampling assembly. One end of the lime mixing pipeline 6 is connected to a lime mixing interface 1. In this embodiment, the lime mixing interface 1 is used to connect to a tank truck, and lime powder flows from the lime mixing interface 1 to the other end of the lime mixing pipeline 6. The pipeline valve 7 is provided on the lime mixing pipeline 6 and is used to control the opening and closing of the lime mixing pipeline 6. One end of the sensing handle 8 is connected to the valve port of the pipeline valve 7, and the other end is connected to the proximity switch 9 provided on the lime mixing pipeline 6.

[0022] When the sensing handle 8 is above the proximity switch 9 and senses the proximity switch 9, the pipeline valve 7 remains closed. When the sensing handle 8 is turned and removed from the proximity switch 9, the pipeline valve 7 opens, and the automatic sampling assembly begins automatic sampling. The automatic sampling assembly includes a sampling tube 10 and a pneumatic ball valve 5. One end of the sampling tube 10 is connected to the dust-discharging pipe 6 at the front end of the pipeline valve 7, and the other end is connected to the pneumatic ball valve 5. As the lime powder passes along the dust-discharging pipe 6, it flows along the sampling tube 10 toward the pneumatic ball valve 5. In this embodiment, the pneumatic ball valve 5 is electrically connected to the proximity switch 9 and is connected to a pneumatic device via a compressed air pipe 2.

[0023] Before sampling, the sampling interval of the pneumatic ball valve 5 is set according to the total sample volume requirements and the ash discharging time of different tank trucks. In this embodiment, the sampling interval can be set to different gears, such as 30s, 50s, 60s, 120s, and 180s. Given the total sample volume requirement of 3kg or more for sintered quicklime, and tank truck loads of over 20 tons and 40 tons, the ash discharging time is 40-60 minutes per truck, and the sampling volume of a single side of the sampling tube 10 is approximately 50g. The sampling gear can be set according to the total sample volume and the ash discharging time of different tank trucks to ensure that the total sample volume meets national standards and that sampling points are distributed throughout the entire truck lime discharging process.

[0024] See also Figure 2The sampling tube 10 is inserted upward into the lime mixing pipe 6 at one end connected to the lime mixing pipe 6, and a material extraction port is provided at one end of the sampling tube 10 inserted into the lime mixing pipe 6 in the direction of the incoming material. In this embodiment, the material extraction port is a semicircular opening structure, which facilitates intercepting lime powder and allowing the lime powder to fall into the sampling tube 10.

[0025] See also Figure 1 The automatic sampling assembly includes a discharge chute 3 and a sample storage bin 4. One end of the discharge chute 3 is connected to a pneumatic ball valve 5, and the other end is connected to the sample storage bin 4. The sample storage bin 4 is provided with a receiving bucket for receiving lime powder. One end of the discharge chute 3 passes through the sample storage bin 4 and extends into the receiving bucket.

[0026] Preferably, an openable and closable door is installed on the wall of the sample storage bin 4, which is convenient for opening the sample storage bin 4 and taking out the material receiving bucket.

[0027] The principle of the utility model pipeline lime powder automatic sampling device is as follows:

[0028] When ash beating, open the pipeline valve 7. At this time, the sensing handle 8 leaves the proximity switch 9, and the pneumatic ball valve 5 of the automatic sampling assembly starts to start. Sampling begins, and the lime powder passes through the ash beating pipeline 6 while passing downward through the sampling tube 10, the pneumatic ball valve 5 and the discharge chute 3 and finally flows into the receiving bucket of the sample storage bin 4; after ash beating is completed, close the pipeline valve 7. At this time, the sensing handle 8 and the proximity switch 9 remain in the sensing state, and the pneumatic ball valve 5 stops sampling, thereby realizing automatic sampling of the entire process; after ash beating is completed, open the sample storage bin 4, take out the receiving bucket from the sample storage bin 4, and pack the lime powder in the receiving bucket into a sample, and manually turn the pneumatic ball valve 5 to clean the residual material inside the pneumatic ball valve 5 and the discharge chute 3 to avoid contamination of the next batch of samples; after cleaning, put the receiving bucket back into the sample storage bin 4 and lock the door of the sample storage bin 4 for the next sampling.

[0029] As described above, the utility model automatically starts sampling through the cooperation of the proximity switch 9 and the pneumatic ball valve 5, which reduces the labor intensity of the sampling personnel, makes sampling convenient, simple to operate, and highly safe; the sampling interval of the pneumatic ball valve 5 can also be preset; and the samples obtained by the above-mentioned sampling method are more representative, which improves the measurement accuracy of the samples and solves the problems of the existing manual climbing vehicle sampling that is time-consuming and labor-intensive, the inability to ensure safety, and the low representativeness of the sampling.

[0030] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic sampling device for lime powder in pipelines, characterized by: The invention comprises a dust-beating pipeline (6), a pipeline valve (7), a sensing handle (8), a proximity switch (9) and an automatic sampling component. The pipeline valve (7) is arranged on the dust-beating pipeline (6). One end of the sensing handle (8) is connected to the valve port of the pipeline valve (7), and the other end is connected to the proximity switch (9) arranged on the dust-beating pipeline (6). The automatic sampling component comprises a sampling tube (10) and a pneumatic ball valve (5). One end of the sampling tube (10) is connected to the dust-beating pipeline (6) at the front end of the pipeline valve (7), and the other end is connected to the pneumatic ball valve (5).

2. The automatic sampling device for lime powder in pipeline according to claim 1, characterized in that: One end of the sampling tube (10) connected to the dust-beating pipe (6) is inserted upward into the dust-beating pipe (6), and one end of the sampling tube (10) inserted into the dust-beating pipe (6) is provided with a material taking port facing the incoming material direction.

3. The automatic sampling device for lime powder in pipeline according to claim 2, characterized in that: The material taking opening is a semicircular opening structure.

4. The automatic sampling device for lime powder in pipeline according to claim 1, characterized in that: The automatic sampling assembly comprises a material discharge chute (3) and a sample storage bin (4); one end of the material discharge chute (3) is connected to a pneumatic ball valve (5), and the other end is connected to the sample storage bin (4).

5. The automatic sampling device for lime powder in pipeline according to claim 4, characterized in that: The sample storage bin (4) is provided with a material receiving barrel, and one end of the material discharge chute (3) passes through the sample storage bin (4) and extends into the material receiving barrel.

6. The automatic sampling device for lime powder in pipeline according to claim 4, characterized in that: A door is installed on the wall of the sample storage bin (4).

7. The automatic sampling device for lime powder in pipeline according to claim 1, characterized in that: The pneumatic ball valve (5) is electrically connected to the proximity switch (9).

8. The automatic sampling device for lime powder in pipeline according to claim 1, characterized in that: One end of the dust removal pipe (6) is connected to a dust removal interface (1).

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