Maintainable anti-blocking compressed air pulverized coal sampler

Abstract

The utility model discloses a maintainable anti-blocking compressed air pulverized coal sampler, and relates to the field of industrial sampling equipment, in particular to the maintainable anti-blocking compressed air pulverized coal sampler. Comprising a main body, a pulverized coal separator, a sample collecting bottle, threads, a negative pressure generator, a compressed air inlet, a compressed air outlet, a pulverized coal inlet, a first control valve and a second control valve. According to the utility model, the main body provides a supporting structure and optimizes the internal space, the pulverized coal separator preliminarily separates pulverized coal and reduces blockage, and the sample collecting bottle collects the pulverized coal. Threaded connection facilitates disassembly and maintenance, the negative pressure generator generates negative pressure suction force, and it is guaranteed that pulverized coal flows smoothly. The compressed air inlet and the compressed air outlet ensure normal operation of the system, control the valve to adjust flow, simplify maintenance and repair, and improve sampling efficiency and reliability.

Description

Technical Field

[0001] The utility model relates to the field of industrial sampling equipment, in particular to a maintainable anti-blocking compressed air coal powder sampler. Background Art

[0002] A maintainable and anti-blocking compressed air coal powder sampler belongs to the field of industrial sampling equipment. The existing technology mainly adopts an inner and outer tube structure, but there are problems such as the inner tube is easy to be blocked, difficult to clear, and complicated to repair. The utility model arranges the negative pressure tube outside the positive pressure tube and adopts a large-diameter straight tube design to reduce the probability of blockage and maintenance difficulty, improve sampling efficiency and equipment reliability, and is suitable for boiler coal powder sampling and positive pressure direct blowing pulverizing systems. The existing hidden arm type fixed coal powder sampling device (publication number: CN201707241U) has the following disadvantages and needs further improvement:

[0003] 1. The inner tube of traditional equipment is prone to clogging. The portable compressed air coal powder sampler currently used in the market usually adopts an inner and outer tube structure, and the inner tube is designed as a small diameter tube. Due to the changes in the particle size and temperature of the coal powder, the inner tube is very easy to get clogged when the coal powder temperature is low or the particle size is large. Coal powder is easy to agglomerate in a low temperature environment, and large-diameter coal powder is more likely to accumulate in the narrow inner tube, hindering the normal flow of coal powder. The blockage phenomenon not only affects the sampling efficiency, but also causes the sampler to fail to work properly. During the coal powder sampling process, if the inner tube is blocked, the continuous and uniform sampling of coal powder cannot be guaranteed, thereby affecting the accuracy of the subsequent coal powder analysis results. Therefore, there is an urgent need for a coal powder sampler with an inner tube that is not easy to clog.

[0004] 2. Traditional equipment is difficult to clear blockages. Since the inner tube is designed inside the outer tube and usually requires at least two elbows, once the inner tube is blocked, cleaning becomes very difficult. The narrow and curved design of the inner tube increases the difficulty of clearing blockages. Traditional clearing methods require disassembling the equipment for internal cleaning, which is not only time-consuming and labor-intensive, but also requires professional maintenance personnel to operate, increasing the downtime and maintenance costs of the equipment. In actual operation, clearing blockages often requires delicate operations and specialized tools, further increasing the complexity and time cost of maintenance. In addition, frequent blockages and clearing will cause increased wear of the equipment and shorten the service life of the equipment. Therefore, there is an urgent need for a coal powder sampler with low difficulty in clearing blockages.

[0005] 3. Traditional equipment is complicated to repair. The existing inner and outer tubes of coal powder samplers are usually welded into one design. This structure means that when the outer tube is damaged and perforated by the compressed air sealing the sampling hole, not only the outer tube needs to be repaired, but the inner tube will also be affected by the damage, causing the entire sampling system to fail. When the inner tube cannot form a negative pressure, the sampling operation will not be able to proceed normally. Repairing the design of the inner and outer tubes welded into one is extremely complicated. It is necessary to cut the welded parts, carry out comprehensive disassembly and re-welding, require professional welding equipment and technicians, and also require a long repair time. Because the repair process is complicated and time-consuming, once a failure occurs, it will cause the equipment to shut down for a long time, affecting the normal production process and increasing the company's maintenance costs and time losses. In addition, the quality of welding repairs is not easy to guarantee, and new potential failure points will appear, affecting the long-term stability and safety of the equipment. Therefore, there is an urgent need for a coal powder sampler that is easy to repair. Utility Model Content

[0006] The main purpose of the utility model is to provide a maintainable anti-blocking compressed air coal powder sampler, which can effectively solve the problems in the background technology.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: there is a maintainable and anti-blocking compressed air coal powder sampler, a pulverized coal separator is installed under the main body, a sample collecting bottle is installed under the pulverized coal separator, a thread is installed on one side of the main body, a negative pressure generator is installed above the main body, a compressed air inlet is installed behind the negative pressure generator, a compressed air outlet is installed in front of the negative pressure generator, a coal powder inlet is installed in front of the negative pressure generator, a second control valve is installed in front of the main body, and a first control valve is installed in front of the negative pressure generator.

[0008] Preferably, the exterior of the main body adopts a rounded corner design.

[0009] Preferably, the first control valve and the second control valve can be controlled by bolts.

[0010] Preferably, one side of the main body is connected to one side of the compressed air outlet and the coal powder inlet through pipeline welding.

[0011] Preferably, the negative pressure generator and the compressed air inlet are fixedly connected by welding.

[0012] Preferably, the pulverized coal separator and the sample collecting bottle are connected by a snap-fit ​​connection.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model can effectively solve the problem of easy blockage of the inner tube by introducing the main body, the pulverized coal separator and the sample collection bottle. The reasonable design of the main body ensures that the space between the inner and outer tubes is spacious enough, reducing the possibility of coal powder accumulation in the pipeline. The pulverized coal separator can perform preliminary separation before the coal powder enters the negative pressure tube, effectively filter out larger particles of coal powder, prevent it from entering the inner tube, and thus reduce the occurrence of blockage. The sample collection bottle provides a special collection and storage space for coal powder, avoiding the retention and accumulation of coal powder in the pipeline.

[0015] 2. The utility model introduces threads and negative pressure generators to reduce the difficulty of clearing blockages. The thread design makes the connection between the various parts of the equipment tighter and easier to disassemble. When blockage occurs, the operator can quickly disassemble the affected parts for cleaning without the need for complex equipment disassembly. The negative pressure generator provides a strong negative pressure suction force to maintain the smooth flow of coal powder during sampling, reduce the retention and accumulation of coal powder in the pipeline, and thus reduce the probability of blockage and the difficulty of clearing blockages.

[0016] 3. The utility model can effectively solve the problem of complex repair by introducing a compressed air inlet, a compressed air outlet, a coal powder inlet, a first control valve and a second control valve. The compressed air inlet and outlet ensure the normal operation and efficient operation of the negative pressure system, making the equipment more stable and reliable during normal operation and maintenance. The coal powder inlet and the control valve are used in conjunction to flexibly control the inflow and outflow of coal powder, ensuring that the equipment can quickly isolate and handle the problem components when a failure occurs. The first control valve and the second control valve are fixed and controlled by bolts, which further simplifies the disassembly and maintenance process of the equipment and reduces the complexity and downtime of repair. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a front view of the overall structure of the utility model;

[0018] Figure 2 It is a left view of the overall structure of the utility model.

[0019] In the figure: 1. Main body; 2. Pulverized coal separator; 3. Sample collecting bottle; 4. Thread; 5. Negative pressure generator; 6. Compressed air inlet; 7. Compressed air outlet; 8. Pulverized coal inlet; 9. First control valve; 10. Second control valve. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Example

[0024] See also Figure 1-2 , the utility model provides a technical solution:

[0025] A maintainable and anti-blocking compressed air coal powder sampler, wherein a pulverized coal separator 2 is installed below the main body 1, a sample collecting bottle 3 is installed below the pulverized coal separator 2, a thread 4 is installed on one side of the main body 1, a negative pressure generator 5 is installed above the main body 1, a compressed air inlet 6 is installed behind the negative pressure generator 5, a compressed air outlet 7 is installed in front of the negative pressure generator 5, a coal powder inlet 8 is installed in front of the negative pressure generator 5, a second control valve 10 is installed in front of the main body 1, and a first control valve 9 is installed in front of the negative pressure generator 5.

[0026] The following is a specific implementation of the utility model components:

[0027] 1. Main body: As the core supporting structure of the whole device, the main body plays the role of connecting and supporting other components. It must ensure the stable installation of various components and provide sufficient internal space for the smooth flow of coal powder. In addition, the outside of the main body adopts a rounded design to reduce the accumulation of dust and coal powder, and facilitate cleaning and maintenance.

[0028] 2. Pulverized coal separator: The pulverized coal separator is installed below the main body and is used to separate the pulverized coal from the airflow. It is equipped with a multi-layer filter or cyclone separator structure inside, which can effectively capture pulverized coal of different particle sizes and prevent it from entering the subsequent negative pressure pipeline. This design can not only improve the accuracy of sampling, but also reduce the risk of clogging of the inner pipe. The shape and size of the pulverized coal separator should be designed according to actual needs to ensure that it can carry enough pulverized coal and is easy to clean and replace.

[0029] 3. Sample collection bottle: The sample collection bottle is installed under the pulverized coal separator to collect the pulverized coal separated from the separator. The sample collection bottle is usually made of transparent or translucent material, which is convenient for operators to observe the accumulation of pulverized coal inside and replace or clean it in time. The interface design of the sample collection bottle needs to ensure a tight connection with the separator to prevent pulverized coal from leaking. At the same time, the capacity of the sample collection bottle should be large enough to avoid frequent replacement and affect the sampling efficiency.

[0030] 4. Thread: Thread is used to connect and fix various parts in the equipment, especially key parts such as the main body, negative pressure generator, compressed air inlet, etc. The advantage of threaded connection is that it can be quickly disassembled and installed, which improves the maintainability of the equipment. When the equipment needs to be cleaned or repaired, the parts can be separated and replaced by simply rotating the thread, reducing downtime and maintenance costs. The design of the thread should ensure sufficient strength and sealing to prevent leakage or loosening at the connection.

[0031] 5. Negative pressure generator: The negative pressure generator is the power core of the entire sampling system, which absorbs coal powder by generating negative pressure. It is installed above the main body and works by connecting the compressed air inlet and outlet. The performance of the negative pressure generator directly affects the sampling efficiency and the fluidity of coal powder. Therefore, the negative pressure generator should have efficient negative pressure generation capability and stable working performance. Its internal structure design needs to take into account the flow path of the airflow, minimize resistance, and improve the efficiency of negative pressure generation.

[0032] 6. Compressed air inlet: The compressed air inlet is connected to the rear of the negative pressure generator and is used to introduce compressed air. Compressed air enters the negative pressure generator through this inlet, generating negative pressure inside and driving the flow of coal powder. The design of the inlet needs to ensure the stability and sufficiency of the air flow to meet the working requirements of the negative pressure generator. A filtering device should be installed at the inlet to prevent impurities from entering and affecting the normal operation of the equipment.

[0033] 7. Compressed air outlet: The compressed air outlet is installed in front of the negative pressure generator to discharge the compressed air in the negative pressure generator. The design of the outlet needs to ensure the smooth discharge of the airflow to avoid the formation of reverse pressure that affects the generation of negative pressure. The selection of the outlet position and direction needs to take into account the airflow path of the entire system to ensure that the discharged air does not interfere with the sampling process of the coal powder.

[0034] 8. Powdered coal inlet: The powdered coal inlet is installed in front of the negative pressure generator and is used to introduce powdered coal. The powdered coal enters the sampling system through this inlet and enters the main body under the action of negative pressure suction. The design of the inlet needs to ensure that the powdered coal can enter smoothly to prevent blockage. A sealing device should be installed at the inlet to prevent the powdered coal from leaking out and ensure the accuracy and safety of sampling.

[0035] 9. First control valve: The first control valve is installed in front of the negative pressure generator to control the flow of compressed air. By adjusting the opening and closing degree of the valve, the amount of air entering the negative pressure generator can be accurately controlled, thereby adjusting the intensity of the negative pressure. This design improves the flexibility and adaptability of the sampling system and can be adjusted according to different sampling requirements. The material and structure of the valve should have high pressure resistance and wear resistance to ensure long-term stable operation.

[0036] 10. Second control valve: The second control valve is installed on one side of the pulverized coal separator to control the inflow and outflow of pulverized coal. By adjusting the opening and closing of the valve, the speed and amount of pulverized coal entering the separator can be accurately controlled to optimize the sampling process. This design also improves the flexibility and accuracy of the system to cope with different sampling conditions. The design of the second control valve should take into account the characteristics of pulverized coal to ensure reliable operation in high dust environments.

[0037] The following is the specific technical logic implementation method of the innovative point of this utility model:

[0038] The utility model effectively solves the problem of easy blockage of the inner tube by introducing a main body, a pulverized coal separator and a sample collection bottle. The reasonable design of the main body ensures that the space between the inner and outer tubes is spacious enough, reducing the possibility of coal powder accumulation in the pipeline. Specifically, the main body adopts a large-diameter straight tube design to ensure that the coal powder can flow smoothly through the inner and outer tubes, reducing the risk of coal powder accumulation and blockage caused by the narrow space. The introduction of the pulverized coal separator further optimizes the treatment process before the coal powder enters the negative pressure pipe. The pulverized coal separator is provided with a multi-layer filter screen or a cyclone separator structure, which can effectively separate the larger particles of coal powder preliminarily to prevent them from entering the inner tube, thereby reducing the occurrence of blockage. Through multi-layer filtration or cyclone separation, the large particles in the coal powder are effectively intercepted, ensuring that the coal powder particles entering the negative pressure pipe are smaller and have better fluidity, reducing the risk of blockage. The sample collection bottle provides a special collection and storage space for the coal powder, and avoids the retention and accumulation of coal powder in the pipeline through a reasonably designed collection mechanism. The sample collection bottle is usually made of transparent or translucent material, which is convenient for operators to monitor the accumulation of coal powder in real time, clean or replace it in time, and ensure the continuity and accuracy of the sampling process. These designs work together to significantly reduce the probability of internal tube blockage and improve the sampling efficiency and reliability of the equipment.

[0039] The utility model reduces the difficulty of clearing the blockage of the equipment by introducing threads and negative pressure generators. The design of the threads makes the connection between the various components of the equipment tighter and easier to disassemble. When a blockage occurs, the operator can quickly disassemble the affected components for cleaning without the need for complex equipment disassembly. Specifically, the threaded connection method makes the connection between various components such as the main body, the negative pressure generator, the compressed air inlet and the like flexible and stable. The separation and connection of the components can be achieved through a simple rotation operation, which greatly reduces the time and labor cost required for clearing the blockage. The negative pressure generator can maintain the smooth flow of coal powder during the sampling process by providing a strong negative pressure suction. The flow path of the airflow is taken into consideration when designing the negative pressure generator. By optimizing the internal structure, the airflow resistance is reduced and the efficiency of generating negative pressure is improved. The strong negative pressure suction can effectively avoid the retention and accumulation of coal powder in the pipeline during the sampling process of coal powder, thereby reducing the probability of blockage and the difficulty of clearing the blockage. The negative pressure generator is closely matched with the main body, the pulverized coal separator, the sample collecting bottle and other components to ensure the fluidity and stability of the coal powder during the sampling process. These designs not only improve the maintainability of the equipment, but also significantly reduce the time and cost required for clearing blockages, thereby improving the operating efficiency and maintenance convenience of the equipment.

[0040] The utility model effectively solves the problem of complex equipment repair by introducing a compressed air inlet, a compressed air outlet, a coal powder inlet, a first control valve and a second control valve. The design of the compressed air inlet and the outlet ensures the normal operation and efficient operation of the negative pressure system. Specifically, the compressed air inlet is connected to the compressed air source to ensure the stable air supply of the negative pressure generator. The compressed air enters the negative pressure generator through the inlet, generates negative pressure inside, and promotes the flow of coal powder. The compressed air outlet is used to discharge the air in the negative pressure generator to ensure the continuous and stable operation of the negative pressure system. The coal powder inlet is used in conjunction with the control valve to flexibly control the inflow and outflow of coal powder. The coal powder inlet is provided with a sealing device to prevent coal powder leakage and improve the accuracy and safety of sampling. The first control valve and the second control valve are fixed and controlled by bolts, which further simplifies the disassembly and maintenance process of the equipment. The specific implementation method is that the control valve can accurately adjust the flow of coal powder and air, and is fixed by bolts to ensure the stability and sealing of the connection to avoid leakage or loosening. These designs can quickly isolate and handle the problem components when a fault occurs, reducing the complexity and downtime of repair. In addition, the flexible adjustment function of the control valve enables the equipment to maintain good performance under different working conditions, ensuring the efficiency and stability of the sampling process.

[0041] The following is the workflow of this utility model:

[0042] 1. Preparation stage:

[0043] a) Before starting the equipment, ensure that all components are firmly connected and check whether the threaded connections are tight and not loose.

[0044] b) Open the first control valve and the second control valve to prepare for the sampling operation.

[0045] 2.Introduce compressed air:

[0046] a) Open the compressed air inlet and introduce compressed air into the negative pressure generator.

[0047] b) The negative pressure generator starts working, generating negative pressure suction to provide power for coal powder sampling.

[0048] 3. Coal powder sampling:

[0049] a) The coal powder enters the sampling system through the coal powder inlet, and under the action of negative pressure suction, the coal powder flows into the main body.

[0050] b) The pulverized coal separator performs preliminary separation on the incoming pulverized coal, filtering out larger particles and preventing them from entering the inner tube.

[0051] 4. Separation and collection:

[0052] a) The separated coal powder enters the sample collecting bottle, where it is collected and stored.

[0053] b) The transparent design of the sample collection bottle allows operators to monitor the accumulation of coal powder in real time and ensure the smooth progress of the sampling process.

[0054] 5. Air emissions:

[0055] a) Compressed air is discharged through the compressed air outlet to ensure the stable operation of the negative pressure system.

[0056] b) During the sampling process, the operator can control the flow of coal powder and air by adjusting the first control valve and the second control valve to ensure the accuracy and efficiency of the sampling.

[0057] 6. Maintenance and cleaning:

[0058] a) After completing sampling, close the compressed air inlet and each control valve and stop the equipment.

[0059] b) Operators can easily disassemble components through threaded connections to carry out necessary cleaning and maintenance.

[0060] c) The coal powder in the sample bottle can be taken out for analysis, and components such as the pulverized coal separator and negative pressure generator also need to be regularly inspected and cleaned to ensure the long-term stable operation of the equipment.

[0061] This equipment is a plug-proof and high-maintenance compressed air coal powder sampler. Its main components include the main body, coal powder separator, sample collection bottle, thread, negative pressure generator, compressed air inlet, compressed air outlet, coal powder inlet, first control valve and second control valve. Each component plays a key role in the entire sampling process to ensure the accuracy, stability and efficiency of coal powder sampling.

[0062] The following is a comparison of parameters between the utility model and traditional equipment:

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[0064]

[0065] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A maintainable anti-blocking compressed air coal powder sampler, comprising a main body (1), characterized in that: A pulverized coal separator (2) is installed below the main body (1), a sample collecting bottle (3) is installed below the pulverized coal separator (2), a thread (4) is installed on one side of the main body (1), a negative pressure generator (5) is installed above the main body (1), a compressed air inlet (6) is installed behind the negative pressure generator (5), a compressed air outlet (7) is installed in front of the negative pressure generator (5), a pulverized coal inlet (8) is installed in front of the negative pressure generator (5), a second control valve (10) is installed in front of the main body (1), and a first control valve (9) is installed in front of the negative pressure generator (5).

2. The maintainable anti-blocking compressed air coal powder sampler according to claim 1 is characterized in that: The exterior of the main body (1) adopts a rounded corner design.

3. The maintainable anti-blocking compressed air coal powder sampler according to claim 1 is characterized in that: The first control valve (9) and the second control valve (10) can be controlled by an upper switch valve.

4. The maintainable anti-blocking compressed air coal powder sampler according to claim 1 is characterized in that: One side of the main body (1) is connected to the compressed air outlet (7) and one side of the coal powder inlet (8) by pipeline welding.

5. The maintainable anti-blocking compressed air coal powder sampler according to claim 1 is characterized in that: The negative pressure generator (5) and the compressed air inlet (6) are fixedly connected by welding.

6. The maintainable anti-blocking compressed air coal powder sampler according to claim 1 is characterized by: The pulverized coal separator (2) and the sample collecting bottle (3) are connected via a snap-fit ​​connection.

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