Sampling and sample recovery device

Abstract

The utility model relates to a sampling and sample recycling device which comprises a first conveying pipe, a second conveying pipe, a third conveying pipe and a fourth conveying pipe, the first conveying pipe is provided with a feeding port and a discharging port, and the first conveying pipe is used for conveying materials and compressed air; the first sampling pipe is arranged between the feeding opening and the discharging opening, and the first end of the first sampling pipe is selectively communicated with the first conveying pipe; the material taking mechanism is connected to the second end, away from the first conveying pipe, of the first sampling pipe and used for receiving the materials circulating in the first conveying pipe, and the sampling and sample recycling device can sample the materials in real time.

Description

Technical Field

[0001] The present disclosure relates to the technical field of material transportation, and in particular to a sampling and sample recovery device. Background Art

[0002] There are many uncontrollable factors in the urea production process. To ensure the quality of urea products, urea sampling and analysis are required to ensure that all indicators of the urea meet the corresponding standards. The sampling process includes scheduled sampling and random sampling.

[0003] In the related art, urea granule sampling equipment requires multiple manual samplings. Each time the sampling port is opened, the material is easily spilled on the ground, causing material waste and inconvenience in real-time sampling of the material. Utility Model Content

[0004] The purpose of the present disclosure is to provide a sampling and sample recovery device, which can realize real-time sampling of materials.

[0005] In order to achieve the above-mentioned objectives, the present disclosure provides a sampling and sample recovery device, which includes: a first conveying pipe, the first conveying pipe having a feed port and a discharge port, and the first conveying pipe is used to convey materials and compressed air; a first sampling tube, the first sampling tube is arranged between the feed port and the discharge port, and the first end of the first sampling tube is selectively connected to the first conveying pipe; and a material collection mechanism, the material collection mechanism is connected to the second end of the first sampling tube away from the first conveying pipe, and is used to receive material flowing in the first conveying pipe.

[0006] Optionally, the material collection mechanism includes a sampler and a separator, the sampler is formed with a accommodating cavity, the separator is placed in the accommodating cavity and is connected to the accommodating cavity, the first sampling tube extends into the accommodating cavity and is connected to the separator, and the separator is used to separate the compressed air and the material.

[0007] Optionally, the sampler is provided with a first opening connected to the accommodating chamber, the first opening is provided at the lower end of the sampler in the direction of gravity, the first opening is used to output the material in the accommodating chamber, the sampling and sample recovery device also includes a collecting piece, the collecting piece is arranged below the first opening, and is used to collect material from the first opening.

[0008] Optionally, the separator is configured as a cyclone separator.

[0009] Optionally, the sampling and sample recovery device includes a second conveying pipe, the first end of the second conveying pipe is selectively connected to the first conveying pipe, the second end of the second conveying pipe is away from the first conveying pipe and is connected to the cyclone separator, and the first end of the second conveying pipe is arranged downstream of the first end of the first sampling pipe and is spaced apart from the first end of the first sampling tube.

[0010] Optionally, the sampling and recovery device further includes a second sampling tube, one end of which is connected to the first opening, and the other end of which is corresponding to and connected to the collecting member.

[0011] Optionally, the sampling and sample recovery device also includes a sample recovery tube, one end of which is connected to the accommodating cavity, and the other end is selectively connected to the first conveying tube. A second opening is provided on the sampler, and the second opening is connected to the accommodating cavity and is used to receive the recovered material. The sample recovery tube is used to transport the recovered material to the first conveying tube.

[0012] Optionally, the sampling and sample recovery device includes a pressurized tube, and the pressurized tube and the sample recovery tube are selectively connected to the accommodating chamber and connected to different sides of the sampler, and the sample recovery tube is arranged downstream of the pressurized tube.

[0013] Optionally, the sampling and sample recovery device further includes a receiver, which is connected to the second opening and selectively communicates with the second opening.

[0014] Optionally, a first valve is provided on the first delivery pipe, a second valve is provided on the first sampling pipe, a third valve is provided on the sample recovery pipe, and a fourth valve is provided on the pressurizing pipe. The third valve and the fourth valve are opened and closed at the same time. When the first valve is opened, the second valve and / or the third valve are in a closed state.

[0015] With the above technical solution, when urea granules need to be transported to the dissolution tank, they enter the first delivery pipe through the feed port. Since compressed air can flow into the first delivery pipe to act as a positive pressure conduit, and the first sampling pipe is disconnected from the first delivery pipe, the compressed air can drive the urea granules through the first delivery pipe and deliver them to the dissolution tank through the discharge port. When sampling the urea granules, the first sampling pipe is connected to the first delivery pipe, allowing the compressed air in the first delivery pipe to enter the first sampling pipe and drive the urea granules into the first sampling pipe to deliver them to the dissolution tank. This enables real-time sampling of the urea granules flowing in the first delivery pipe, avoiding the problems of manual sampling with a single sampling time period and inconsistent sampling amounts, which can affect measurement accuracy. Furthermore, this solution prevents the possibility of gas-substance mixtures being easily ejected and causing material scattering when sampling through a single opening. This not only optimizes the sampling workflow, improves material loading and unloading efficiency, and enhances the cleanliness and safety of the operating environment.

[0016] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following detailed description, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0018] Figure 1 It is a structural schematic diagram of a sampling and sample recovery device provided according to an embodiment of the present disclosure.

[0019] Description of Reference Numerals

[0020] 1-first conveying pipe, 2-first sampling tube, 3-material collection mechanism, 31-sampler, 311-first opening, 312-second opening, 32-separator, 4-collecting element, 5-second conveying pipe, 6-second sampling tube, 71-sample recovery tube, 72-pressurization tube, 8-material receiver, 91-first valve, 92-second valve, 93-third valve, 94-fourth valve. DETAILED DESCRIPTION

[0021] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0022] In this disclosure, unless otherwise indicated, the use of terms such as "first" and "second" is intended to distinguish different components and does not imply order or importance. Furthermore, in the following description, when referring to the accompanying drawings, the same reference numerals in different drawings represent the same elements. Those skilled in the art should understand that the above definitions are intended only to explain and illustrate this disclosure and should not be construed as limiting the disclosure.

[0023] According to the specific embodiment of the present disclosure, Figure 1 As shown, a sampling and sample recovery device is provided, which includes: a first conveying pipe 1, the first conveying pipe 1 has a feed port and a discharge port, and the first conveying pipe 1 is used to convey materials and compressed air; a first sampling pipe 2, the first sampling pipe 2 is arranged between the feed port and the discharge port, and the first end of the first sampling pipe 2 is selectively connected to the first conveying pipe 1; and a material taking mechanism 3, the material taking mechanism 3 is connected to the second end of the first sampling tube 2 away from the first conveying pipe 1, and is used to receive the material flowing in the first conveying pipe 1.

[0024] With the above technical solution, when urea granules need to be transported to the dissolution tank, they enter the first delivery pipe 1 through the feed port. Since compressed air can flow into the first delivery pipe 1 to act as a positive pressure conduit, and the first sampling pipe 2 is disconnected from the first delivery pipe 1, compressed air can drive the urea granules through the first delivery pipe 1 and transport them to the dissolution tank through the discharge port. When sampling the urea granules, the first sampling pipe 2 is connected to the first delivery pipe 1, allowing compressed air in the first delivery pipe 1 to enter the first sampling pipe 2 and drive the urea granules into the first sampling pipe 2, delivering them to the dissolution tank through the discharge port. This enables real-time sampling of the urea granules flowing in the first delivery pipe 1, avoiding the problems of manual sampling with a single time period and inconsistent sampling amounts, which can affect measurement accuracy. Furthermore, it prevents the possibility of gaseous mixtures being easily ejected and causing material scattering when sampling through a single opening. This not only optimizes the sampling workflow, improves material loading and unloading efficiency, and enhances the cleanliness and safety of the operating environment.

[0025] In other embodiments, the sampling and sample recovery device may also be used to transport other dust or particulate matter, which is not limited in this disclosure.

[0026] In some embodiments of the present disclosure, reference Figure 1As shown, the material collection mechanism 3 includes a sampler 31 and a separator 32. The sampler 31 forms a receiving chamber, and the separator 32 is placed within and communicates with the receiving chamber. The first sampling tube 2 extends into the receiving chamber and communicates with the separator 32. The separator 32 is used to separate the compressed air from the material. In this way, the urea granules in the first delivery tube 1 can be transported to the separator 32 via the first sampling tube 2. Because the separator 32 is connected to the receiving chamber, the urea granules delivered to the separator 32 can enter the receiving chamber after separation, so that the receiving chamber can collect the urea granules to be sampled.

[0027] In some embodiments of the present disclosure, reference Figure 1 As shown, the sampler 31 is provided with a first opening 311 in communication with the accommodating chamber. The first opening 311 is located at the lower end of the sampler 31 in the direction of gravity. The first opening 311 is used to discharge the material in the accommodating chamber. The sampling and sample recovery device further includes a collecting member 4, which is arranged below the first opening 311 and is used to collect the material from the first opening 311. In this way, the urea granules in the accommodating chamber can be collected at the first opening 311 under the action of gravity and discharged from the accommodating chamber through the first opening 311. Since the collecting member 4 is located below the first opening 311, the urea granules discharged from the first opening 311 can enter the collecting member 4, thereby collecting the sampled urea granules, so that the staff can test the urea granule samples in the collecting member 4.

[0028] In some embodiments of the present disclosure, reference Figure 1 As shown, the separator 32 is constructed as a cyclone separator. During the rotation of the cyclone separator, urea granules are flung toward the wall under the action of centrifugal force. Under the action of gravity, the urea granules flung toward the wall slide down the wall into the receiving chamber, while the compressed air forms an upward rotating airflow at the center to be discharged from the exhaust port at the top of the cyclone separator, thereby achieving separation of the compressed air and urea granules.

[0029] In some embodiments of the present disclosure, reference Figure 1As shown, the sampling and sample recovery device includes a second delivery pipe 5, the first end of the second delivery pipe 5 is selectively connected to the first delivery pipe 1, the second end of the second delivery pipe 5 facing away from the first delivery pipe 1 is connected to the cyclone separator, and the first end of the second delivery pipe 5 is arranged downstream of the first end of the first sampling pipe 2 and is spaced apart from the first end of the first sampling pipe 2. Among them, when only the urea granules need to be transported to the dissolution tank, the second delivery pipe 5 is not connected to the first delivery pipe 1. When the urea granules need to be sampled and the first sampling pipe 2 is connected to the first delivery pipe 1, the second delivery pipe 5 is connected to the first delivery pipe 1. At this time, the second end of the second delivery pipe 5 away from the first delivery pipe 1 is connected to the top of the rotary separator to be connected to the exhaust port of the cyclone separator. In this way, after the compressed air and urea granules entering the cyclone separator are separated by the cyclone separator, the compressed air can be discharged from the exhaust port at the top of the cyclone separator and enter the second delivery pipe 5, so as to transport the compressed air to the first delivery pipe 1 through the second delivery pipe 5, thereby avoiding the compressed air staying in the sampler 31 and unable to form a circulation, resulting in the situation that the urea granules cannot enter the sampler 31 when sampling is required again. The gas pressure in the first delivery pipe 1 is lower than the pressure of the exhaust gas in the cyclone separator, ensuring that the compressed air discharged from the cyclone separator can enter the first delivery pipe 1, while preventing urea particles in the first delivery pipe 1 from entering the cyclone separator from the second delivery pipe 5.

[0030] In some embodiments of the present disclosure, reference Figure 1 As shown, the sampling and recovery device also includes a second sampling tube 6, one end of which is connected to the first opening 311, and the other end of which is corresponding to and connected to the collecting member 4. In this way, urea granules discharged from the first opening 311 can enter the second sampling tube 6. The second sampling tube 6 can guide the urea granules transported between the first opening 311 and the collecting member 4, preventing the distance between the first opening 311 and the collecting member 4 from being too long, which could cause the urea granules to be scattered.

[0031] In some embodiments of the present disclosure, reference Figure 1As shown, the sampling and sample recovery device also includes a sample recovery tube 71, one end of the sample recovery tube 71 is connected to the accommodating chamber, and the other end is selectively connected to the first conveying tube 1. A second opening 312 is provided on the sampler 31, and the second opening 312 is connected to the accommodating chamber and is used to receive the recovered material. The sample recovery tube 71 is used to convey the recovered material to the first conveying tube 1. Among them, when only the urea granules need to be transported to the dissolution tank or the urea granules are sampled, the sample recovery tube 71 is not connected to the first delivery tube 7. When the collected urea granules are greater than the amount to be detected and the excess urea granules need to be recovered, the sample recovery tube 71 is connected to the first delivery tube 7. At this time, the excess urea granules can be poured back into the accommodating cavity from the second opening 312, so that the urea granules can enter the sample recovery tube 71 through the accommodating cavity and be transported to the first delivery tube 1 through the sample recovery tube 71, thereby realizing the recycling of the excess urea granules and avoiding the situation where the excess urea granules cannot be recycled and waste occurs, thereby ensuring the integrity and recovery efficiency of the sample.

[0032] In some embodiments of the present disclosure, reference Figure 1 As shown, the sampling and sample recovery device includes a pressurized tube 72. The pressurized tube 72 and the sample recovery tube 71 are selectively connected to the receiving chamber and connected to different sides of the sampler 31. The sample recovery tube 71 is located downstream of the pressurized tube 72. The end of the pressurized tube 72 away from the sampler 31 can be connected to a compressed air system. In this way, when there is no need to recover excess urea, the pressurized tube 72 and the sample recovery tube 71 are not connected to the receiving chamber. When it is necessary to recover excess urea granules, the pressurized tube 72 and the sample recovery tube 71 are both connected to the receiving chamber, and the pressurized tube 72 is connected to the sample recovery tube 71. Compressed air can enter the sample recovery tube 71 through the pressurized tube 72 to drive the urea granules to be recovered to circulate in the sample recovery tube 71, thereby transporting the urea granules back to the first delivery pipe 1.

[0033] In some embodiments of the present disclosure, reference Figure 1 As shown, the sampling and sample recovery device further includes a receiver 8, which is connected to the second opening 312 and selectively communicates with the second opening 312. When there is no need to recover excess urea, the receiver 8 is not communicated with the second opening 312. When there is a need to recover excess urea granules, the receiver 8 is communicated with the second opening 312. In this way, the urea granules can be collected by the receiver 8 and enter the accommodating chamber through the second opening 312, so as to be transported to the first conveying pipe 1 for recycling through the sample recovery pipe 71 communicated with the accommodating chamber. The provision of the receiver 8 avoids the situation where excessive urea granules are easily scattered outside the second opening 312 when urea granules are directly dropped into the second opening 312, thereby reducing material waste.

[0034] In some embodiments of the present disclosure, reference Figure 1 As shown, the first delivery pipe 1 is provided with a first valve 91, the first sampling pipe 2 is provided with a second valve 92, the sample recovery pipe 71 is provided with a third valve 93, and the pressurizing pipe 72 is provided with a fourth valve 94. The third valve 93 and the fourth valve 94 are opened and closed simultaneously. When the first valve 91 is open, the second valve 92 and / or the third valve 93 are closed. Thus, when the first valve 91 is open, the first delivery pipe 1 is connected to the dissolution tank to load and unload urea granules. At this time, when the second valve 92 and the third valve 93 are both closed, the first delivery pipe 1 can directly deliver urea granules to the dissolution tank. When sampling of the transported urea granules is required, the second valve 92 is opened and the third valve 93 is closed. At this point, the first sampling tube 2 is connected to the first delivery tube 1. The compressed air and urea granules in the first delivery tube 1 can enter the cyclone separator through the first sampling tube 2, where they are separated. The separated urea granules can then enter the receiving chamber under gravity and be discharged into the collecting member 4 through the first opening 311, thereby enabling sampling of the urea granules. When the urea granules need to be recovered, the second valve 92 is closed and the third valve 93 is opened. Since the third and fourth valves 93 and 94 are opened and closed simultaneously, the pressurizing tube 72 and the sample recovery tube 71 are interconnected. Urea granules that have entered the receiving chamber can be transported through the sample recovery tube 71 to the first delivery tube 1 for recovery.

[0035] Among them, valves can be provided on the second conveying pipe 5, the second sampling pipe 6 and the material receiver 8 as needed, and the present disclosure does not impose any limitation on this.

[0036] Below, reference Figure 1As shown, the present disclosure will provide a detailed introduction to the specific use process of the sampling and sample recovery device in combination with the above-mentioned specific embodiments. When loading and unloading urea granules, the first valve 91 is opened to connect the first delivery pipe 1 with the dissolution tank, and the urea granules and compressed air can enter the first delivery pipe 1 and be transported to the dissolution tank. When it is necessary to sample the transported urea granules, the second valve 92 is opened. At this time, the first sampling pipe 2 is connected with the first delivery pipe 1, and the compressed air and urea granules in the first delivery pipe 1 can enter the cyclone separator through the first sampling pipe 2, and the compressed air and urea granules are separated by the cyclone separator. The separated urea granules enter the accommodating chamber under the action of gravity and are discharged into the collecting member 4 through the first opening 311 to collect the urea granules that need to be sampled. The separated compressed air returns to the first delivery pipe 1 through the second delivery pipe 5. When the urea granules need to be recovered, the second valve 92 is closed and the third valve 93 is opened. Since the third valve 93 and the fourth valve 94 are opened and closed at the same time, the pressurizing pipe 72 and the sample recovery pipe 71 can be connected to each other, and the urea granules entering the receiving chamber can be transferred to the first delivery pipe 1 through the sample recovery pipe 71 for recycling.

[0037] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings. However, the present disclosure is not limited to the specific details of the above embodiments. Within the technical concept of the present disclosure, various simple modifications can be made to the technical solutions of the present disclosure, and these simple modifications all fall within the scope of protection of the present disclosure.

[0038] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0039] In addition, the various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A sampling and sample recovery device, characterized in that: The sampling and sample recovery device comprises: A first conveying pipe, the first conveying pipe having a feed port and a discharge port, and the first conveying pipe is used to convey materials and compressed air; a first sampling tube, the first sampling tube being disposed between the feed port and the discharge port, the first end of the first sampling tube being selectively connected to the first delivery tube; and The material taking mechanism is connected to the second end of the first sampling tube away from the first conveying tube, and is used for receiving the material flowing in the first conveying tube.

2. The sampling and sample recovery device according to claim 1, characterized in that: The material taking mechanism includes a sampler and a separator. The sampler is formed with a accommodating cavity. The separator is placed in the accommodating cavity and communicated with the accommodating cavity. The first sampling tube extends into the accommodating cavity and communicates with the separator. The separator is used to separate the compressed air and the material.

3. The sampling and sample recovery device according to claim 2, characterized in that: The sampler is provided with a first opening connected to the accommodating chamber, and the first opening is provided at the lower end of the sampler in the direction of gravity. The first opening is used to output the material in the accommodating chamber. The sampling and sample recovery device also includes a collecting piece, which is arranged below the first opening and is used to collect material from the first opening.

4. The sampling and sample recovery device according to claim 2 or 3, characterized in that: The separator is configured as a cyclone separator.

5. The sampling and sample recovery device according to claim 4, characterized in that: The sampling and sample recovery device includes a second conveying pipe, the first end of the second conveying pipe is selectively connected to the first conveying pipe, the second end of the second conveying pipe is away from the first conveying pipe and is connected to the cyclone separator, and the first end of the second conveying pipe is arranged downstream of the first end of the first sampling pipe and is spaced apart from the first end of the first sampling pipe.

6. The sampling and sample recovery device according to claim 3, characterized in that: The sampling and recovery device further includes a second sampling tube, one end of which is connected to the first opening, and the other end of which is corresponding to and connected to the collecting component.

7. The sampling and sample recovery device according to claim 3, characterized in that: The sampling and sample recovery device also includes a sample recovery tube, one end of which is connected to the accommodating cavity, and the other end is selectively connected to the first conveying tube. A second opening is provided on the sampler, which is connected to the accommodating cavity and is used to receive the recovered material. The sample recovery tube is used to convey the recovered material to the first conveying tube.

8. The sampling and sample recovery device according to claim 7, characterized in that: The sampling and sample recovery device includes a pressurized tube. The pressurized tube and the sample recovery tube are selectively connected to the accommodating cavity and connected to different sides of the sampler. The sample recovery tube is arranged downstream of the pressurized tube.

9. The sampling and sample recovery device according to claim 8, characterized in that: The sampling and sample recovery device further includes a material receiver connected to the second opening and selectively communicated with the second opening.

10. The sampling and sample recovery device according to claim 8, characterized in that: A first valve is provided on the first delivery pipe, a second valve is provided on the first sampling pipe, a third valve is provided on the sample recovery pipe, and a fourth valve is provided on the pressurizing pipe. The third valve and the fourth valve are opened and closed at the same time. When the first valve is opened, the second valve and / or the third valve are in a closed state.

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