A pneumatic conveying pipe sampler for powdery material

Abstract

The application provides a kind of pneumatic pipeline sampler for powdery material, relating to the technical field of sampling equipment, comprising pneumatic pipeline, sampling pipeline, sampling box, air pressure pipe, pneumatic butterfly valve and control cabinet, one end of sampling pipeline is connected with pneumatic pipeline, the other end is connected with sampling box, air pressure pipe is arranged on sampling pipeline and connected with sampling pipeline, pneumatic butterfly valve is connected on air pressure pipe, control cabinet is connected with air pressure pipe, control cabinet is electrically connected with pneumatic butterfly valve and controls opening and closing of pneumatic butterfly valve.The application can accurately control time interval and opening and closing time of pneumatic butterfly valve through time relay, so that sampling frequency and sampling amount are equal, which ensures uniformity and representativeness of sample;the application can realize automatic operation of whole sampling process, without human intervention in sampling process, with uniform sampling, representativeness, high sampling efficiency, low labor intensity and improved safety.

Description

Technical Field

[0001] This application relates to the field of sampling equipment technology, and more particularly to a pneumatic pipeline sampler for powdery materials. Background Technology

[0002] In existing technologies, steel enterprises require large quantities of powdered materials such as bentonite, hydrated lime, and quicklime powder during production. The settlement of these materials is based on the results of incoming inspection, which includes three stages: sampling, sample preparation, and analysis. Sampling methods involve manually controlling sampling pipeline valves to intercept samples or manually operating sampling machines. Because sampling is manual, numerous human and sampling method-related factors can affect the test results. Furthermore, manual sampling requires waiting for operators to arrive on-site, leading to problems such as waiting time, uneven material sampling affecting representativeness, low sampling efficiency, high labor intensity, poor working environment with dust, and safety hazards such as the risk of on-site air pressure pipe bursting. Summary of the Invention

[0003] The purpose of this invention is to provide a pneumatic pipeline sampler for powdery materials, which has the advantages of fully automatic operation of the entire sampling process, no human intervention, uniform and representative sampling, high sampling efficiency, low labor intensity, and improved safety, thereby solving the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] A pneumatic pipe sampler for powdery materials, comprising:

[0006] Pneumatic conveyor duct;

[0007] Sampling pipeline;

[0008] The sampling box has a sampling pipe connected at one end to the air delivery pipe and at the other end to the sampling box.

[0009] A pneumatic tube is installed on the sampling pipeline and connected to the sampling pipeline.

[0010] Pneumatic butterfly valve, the pneumatic butterfly valve is connected to the air pressure pipe;

[0011] The control cabinet is connected to the pneumatic pipe and electrically connected to the pneumatic butterfly valve, and controls the opening and closing of the pneumatic butterfly valve.

[0012] The control cabinet includes an electrical control component, which is electrically connected to the pneumatic butterfly valve and controls its opening and closing. The electrical control component includes:

[0013] DC intermediate relay;

[0014] The time relay is electrically connected to the DC intermediate relay and the pneumatic butterfly valve respectively.

[0015] Limit switch, the limit switch is installed on the pneumatic butterfly valve and is electrically connected to the DC intermediate relay;

[0016] The signal light is electrically connected to the DC intermediate relay.

[0017] As a further embodiment of the present invention: the electronic control component includes:

[0018] A pneumatic switch is connected to a pneumatic tube and detects the air pressure inside the tube.

[0019] The main switch button is electrically connected to the gas pressure switch.

[0020] As a further embodiment of the present invention: the DC intermediate relay includes a first DC intermediate relay, the first DC intermediate relay comprising:

[0021] First DC intermediate relay coil;

[0022] The normally open contact of the first DC intermediate relay is electrically connected to the coil of the first DC intermediate relay and the pneumatic switch, respectively.

[0023] The normally closed contact of the first DC intermediate relay is electrically connected to the coil of the first DC intermediate relay.

[0024] As a further embodiment of the present invention: the DC intermediate relay includes a second DC intermediate relay, which is electrically connected to the first DC intermediate relay, and the second DC intermediate relay includes:

[0025] Second DC intermediate relay coil;

[0026] The normally open contact of the second DC intermediate relay is electrically connected to the coil of the second DC intermediate relay.

[0027] As a further embodiment of the present invention: the DC intermediate relay includes a third DC intermediate relay, which is electrically connected to the second DC intermediate relay, and the third DC intermediate relay includes:

[0028] Third DC intermediate relay coil;

[0029] The normally open contact of the third DC intermediate relay is electrically connected to the second DC intermediate relay.

[0030] As a further embodiment of the present invention: the time relay is electrically connected to the third DC intermediate relay, and the time relay includes a normally open contact, which is electrically connected to the third DC intermediate relay.

[0031] As a further embodiment of the present invention: the signal light includes a first signal light, which is electrically connected to the normally open contact of the first DC intermediate relay.

[0032] As a further embodiment of the present invention: the signal light includes a second signal light, which is electrically connected to the normally closed contact of the first DC intermediate relay.

[0033] As a further embodiment of the present invention: the signal light includes a third signal light, which is electrically connected to the normally open contact of the third DC intermediate relay.

[0034] Compared with the prior art, the beneficial effects of the present invention are:

[0035] This application provides a pneumatic conveying pipe sampler for powdery materials, including a pneumatic conveying pipe, a sampling pipe, a sampling box, a pressure pipe, a pneumatic butterfly valve, and a control cabinet. One end of the sampling pipe is connected to the pneumatic conveying pipe, and the other end is connected to the sampling box. The pressure pipe is located on the sampling pipe and connected to it. The pneumatic butterfly valve is connected to the pressure pipe. The control cabinet is connected to the pressure pipe and electrically connected to the pneumatic butterfly valve, controlling its opening and closing. The control cabinet uses a dual switch, a pressure switch and a push-button switch, for power. The pressure switch in the control cabinet detects the air pressure in the pressure pipe. When there is air pressure in the pressure pipe, the control cabinet automatically starts without manual operation. It also works in case of a pressure switch failure. The sampler can be started via a button. A time relay is connected to a solenoid valve, which controls the opening and closing of the pneumatic butterfly valve. The time relay allows for precise control of the time interval and duration of each opening and closing of the pneumatic butterfly valve, ensuring equal sampling frequency and sample volume, thus guaranteeing sample uniformity and representativeness. A limit switch is installed on the pneumatic butterfly valve. If the valve is not fully opened or not opened completely, the limit switch closes, and the third indicator light remains on as an alarm, ensuring stable operation of the sampler. The sampler described in this application enables fully automated operation of the entire sampling process, eliminating human intervention. It provides uniform and representative samples, high sampling efficiency, low labor intensity, and improved safety. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings. In the following description, the same reference numerals denote the same parts.

[0038] Figure 1 This is a schematic diagram of a pneumatic pipeline sampler for powdery materials, provided as an embodiment of this application.

[0039] Figure 2 This is a schematic diagram of the electrical control components of an air-pumped pipeline sampler for powdery materials, provided as an embodiment of this application.

[0040] Figure 3 for Figure 2 A magnified view of part A in the image.

[0041] Markings in the image:

[0042] 1. Pneumatic conveying duct; 2. Sampling duct; 3. Sampling box; 4. Pneumatic pipe; 5. Pneumatic butterfly valve; 6. Control cabinet; 7. Electrical control components;

[0043] 71. First DC intermediate relay; 72. Second DC intermediate relay; 73. Third DC intermediate relay; 74. Time relay; 75. Limit switch; 76. Indicator light; 77. Pressure switch; 78. Main switch button;

[0044] 711. Normally open contact of the first DC intermediate relay; 712. Normally closed contact of the first DC intermediate relay;

[0045] 721. Normally open contact of the second DC intermediate relay;

[0046] 731. Normally open contact of the third DC intermediate relay;

[0047] 741. Normally open contact of time relay;

[0048] 761. First traffic light; 762. Second traffic light; 763. Third traffic light. Detailed Implementation

[0049] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0050] Please refer to the attached document. Figures 1-3 This application provides a pneumatic pipe sampler for powdery materials, comprising:

[0051] Air conveyor duct 1;

[0052] Sampling pipe 2;

[0053] Sampling box 3, sampling pipe 2 is connected at one end to air delivery pipe 1 and at the other end to sampling box 3;

[0054] Air pressure pipe 4 is installed on sampling pipe 2 and connected to sampling pipe 2.

[0055] Pneumatic butterfly valve 5, which is connected to pneumatic pipe 4;

[0056] Control cabinet 6 is connected to pneumatic pipe 4 and electrically connected to pneumatic butterfly valve 5, and controls the opening and closing of pneumatic butterfly valve 5.

[0057] Control cabinet 6 includes an electrical control component 7, which is electrically connected to the pneumatic butterfly valve 5 and controls the opening and closing of the pneumatic butterfly valve 5. The electrical control component 7 includes:

[0058] DC intermediate relay;

[0059] Time relay 74 is electrically connected to DC intermediate relay and pneumatic butterfly valve 5 respectively;

[0060] Limit switch 75 is installed on pneumatic butterfly valve 5 and is electrically connected to DC intermediate relay;

[0061] Signal light 76 is electrically connected to a DC intermediate relay.

[0062] This application provides a pneumatic conveying pipe sampler for powdery materials, including a pneumatic conveying pipe 1, a sampling pipe 2, a sampling box 3, a pressure pipe 4, a pneumatic butterfly valve 5, and a control cabinet 6. One end of the sampling pipe 2 is connected to the pneumatic conveying pipe 1, and the other end is connected to the sampling box 3. The pressure pipe 4 is located on and connected to the sampling pipe 2. The pneumatic butterfly valve 5 is connected to the pressure pipe 4. The control cabinet 6 is connected to the pressure pipe 4 and electrically connected to the pneumatic butterfly valve 5, and controls the opening and closing of the pneumatic butterfly valve 5. The power switch of the control cabinet 6 in this application adopts a dual switch of a pressure switch 77 and a push-button switch. The pressure switch 77 of the control cabinet 6 detects the air pressure in the pressure pipe 4. When there is air pressure in the pressure pipe 4, the control cabinet 6 automatically starts without human operation. In case of a malfunction, the device can also be started via a button. The time relay 74 is connected to a solenoid valve, which controls the opening and closing of the pneumatic butterfly valve 5. Using the time relay 74, the time interval between opening and closing of the pneumatic butterfly valve 5 and the duration of each opening and closing can be precisely controlled, ensuring that the sampling frequency and the amount of sample taken each time are equal, thus guaranteeing the uniformity and representativeness of the sample. A limit switch 75 is installed on the pneumatic butterfly valve 5. When the pneumatic butterfly valve 5 is not opened or is not opened fully, the limit switch 75 closes, and the third indicator light 763 remains on to sound an alarm, ensuring the stable operation of the sampler. The sampler of this application can achieve fully automatic operation of the entire sampling process without human intervention. The sample is uniform, representative, efficient, and reduces labor intensity, thus improving safety.

[0063] In a preferred embodiment of the present invention, the electronic control component 7 includes:

[0064] A pressure switch 77 is connected to the pressure tube 4 and detects the air pressure inside the pressure tube 4.

[0065] The main switch button 78 is electrically connected to the pressure switch 77;

[0066] The power switch of the control cabinet 6 in this application adopts a dual switch of pneumatic switch 77 and push button switch. The pneumatic switch 77 of the control cabinet 6 detects the air pressure in the air pressure pipe 4. When there is air pressure in the air pressure pipe 4, the control cabinet 6 starts automatically without human operation. In case of failure of pneumatic switch 77, it can also be started by push button.

[0067] In a preferred embodiment of the present invention, the DC intermediate relay includes a first DC intermediate relay 71, which includes:

[0068] First DC intermediate relay coil;

[0069] The normally open contact 711 of the first DC intermediate relay is electrically connected to the coil of the first DC intermediate relay and the pneumatic switch 77.

[0070] The normally closed contact 712 of the first DC intermediate relay is electrically connected to the coil of the first DC intermediate relay.

[0071] In a preferred embodiment of the present invention, the DC intermediate relay includes a second DC intermediate relay 72, which is electrically connected to the first DC intermediate relay 71. The second DC intermediate relay 72 includes:

[0072] Second DC intermediate relay coil;

[0073] The normally open contact 721 of the second DC intermediate relay is electrically connected to the coil of the second DC intermediate relay.

[0074] In a preferred embodiment of the present invention, the DC intermediate relay includes a third DC intermediate relay 73, which is electrically connected to the second DC intermediate relay 72. The third DC intermediate relay 73 includes:

[0075] Third DC intermediate relay coil;

[0076] The normally open contact 731 of the third DC intermediate relay is electrically connected to the second DC intermediate relay 72.

[0077] In a preferred embodiment of the present invention, the time relay 74 is electrically connected to the third DC intermediate relay 73. The time relay 74 includes a normally open contact 741, which is electrically connected to the third DC intermediate relay 73.

[0078] In a preferred embodiment of the present invention, the signal light 76 includes a first signal light 761, which is electrically connected to a normally open contact 711 of a first DC intermediate relay; further, the signal light 76 includes a second signal light 762, which is electrically connected to a normally closed contact 712 of the first DC intermediate relay; further, the signal light 76 includes a third signal light 763, which is electrically connected to a normally open contact 731 of a third DC intermediate relay.

[0079] This application provides a pneumatic conveying pipe sampler for powdery materials. The working method is as follows: the pneumatic conveying pipe 1 delivers the sample, the control cabinet 6 is automatically started, and the control cabinet 6 automatically controls the opening and closing of the pneumatic butterfly valve 5 throughout the process. When the pneumatic butterfly valve 5 is open, the air pressure pipe 4 and the sampling pipe 2 are connected, and the sample can enter the sample box through the sampling pipe 2.

[0080] This application provides a sampler for pneumatic conveying pipelines used for powdery materials, the working principle of which is as follows:

[0081] 1. Control cabinet 6 is powered on, and the second indicator light 762 remains constantly lit; 2. On-site material conveying begins, and the air pressure switch 77 closes. If the air pressure switch 77 malfunctions, the main switch button 78 can be pressed to start the sampler. The coil of the first DC intermediate relay is energized, the normally open contact 711 of the first DC intermediate relay closes and remains in a self-locking state, the first indicator light 761 remains constantly lit, the normally closed contact of the first DC intermediate relay 71 opens, and the second light goes out; 3. The time relay 74 is energized to start timing. When the set time is up, the normally open contact 741 of the time relay closes, the coil of the third DC intermediate relay is energized, the normally open contact 731 of the third DC intermediate relay closes, the solenoid valve connected to the time relay 74 is energized, the pneumatic butterfly valve 5 opens, and the air pressure pipe 4 and sampling pipe... When channel 2 is activated, material feeding begins. When the normally open contact 731 of the third DC intermediate relay closes, the coil of the second DC intermediate relay is energized, the normally open contact of the second DC intermediate relay 72 closes, and the third indicator light 763 illuminates. When the pneumatic butterfly valve 5 opens, the limit switch 75 opens, and the second DC intermediate relay 72 cannot maintain its self-locking. If the pneumatic butterfly valve 5 does not open or does not open fully, the limit switch 75 remains closed, and the second DC intermediate relay 72 maintains its self-locking, while the third indicator light 763 remains constantly lit as an alarm. A constantly lit third light indicates a equipment malfunction. 4. When the working time set by the time relay 74 is reached, the normally open contact 741 of the time relay opens, the normally open contact 731 of the third DC intermediate relay opens, and the third indicator light 763 goes out. Then steps 3 and 4 begin to cycle until the material conveying is completed, the pneumatic switch 77 is opened, the main switch button 78 is pressed, and the sampler stops working. 5. The sample is removed from the sample box, and sampling is complete.

[0082] This application provides a pneumatic conveying pipe sampler for powdery materials, including a pneumatic conveying pipe 1, a sampling pipe 2, a sampling box 3, a pressure pipe 4, a pneumatic butterfly valve 5, and a control cabinet 6. One end of the sampling pipe 2 is connected to the pneumatic conveying pipe 1, and the other end is connected to the sampling box 3. The pressure pipe 4 is located on and connected to the sampling pipe 2. The pneumatic butterfly valve 5 is connected to the pressure pipe 4. The control cabinet 6 is connected to the pressure pipe 4 and electrically connected to the pneumatic butterfly valve 5, and controls the opening and closing of the pneumatic butterfly valve 5. The power switch of the control cabinet 6 in this application adopts a dual switch of a pressure switch 77 and a push-button switch. The pressure switch 77 of the control cabinet 6 detects the air pressure in the pressure pipe 4. When there is air pressure in the pressure pipe 4, the control cabinet 6 automatically starts without human operation. In case of a malfunction, the device can also be started via a button. The time relay 74 is connected to a solenoid valve, which controls the opening and closing of the pneumatic butterfly valve 5. Using the time relay 74, the time interval between opening and closing of the pneumatic butterfly valve 5 and the duration of each opening and closing can be precisely controlled, ensuring that the sampling frequency and the amount of sample taken each time are equal, thus guaranteeing the uniformity and representativeness of the sample. A limit switch 75 is installed on the pneumatic butterfly valve 5. When the pneumatic butterfly valve 5 is not opened or is not opened fully, the limit switch 75 closes, and the third indicator light 763 remains on to sound an alarm, ensuring the stable operation of the sampler. The sampler of this application can achieve fully automatic operation of the entire sampling process without human intervention. The sample is uniform, representative, efficient, and reduces labor intensity, thus improving safety.

[0083] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0084] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0085] This document uses specific examples to illustrate the principles and implementation methods of this application. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A sampler for pneumatic conveying pipelines used for powdery materials, characterized in that, include: Pneumatic conveyor duct; Sampling pipeline; The sampling box has a sampling pipe connected at one end to the air delivery pipe and at the other end to the sampling box. A pneumatic tube is installed on the sampling pipeline and connected to the sampling pipeline. Pneumatic butterfly valve, the pneumatic butterfly valve is connected to the air pressure pipe; The control cabinet is connected to the pneumatic pipe and electrically connected to the pneumatic butterfly valve, and controls the opening and closing of the pneumatic butterfly valve. The control cabinet includes an electrical control component, which is electrically connected to the pneumatic butterfly valve and controls its opening and closing. The electrical control component includes: DC intermediate relay; The time relay is electrically connected to the DC intermediate relay and the pneumatic butterfly valve respectively. Limit switch, the limit switch is installed on the pneumatic butterfly valve and is electrically connected to the DC intermediate relay; The signal light is electrically connected to the DC intermediate relay; The DC intermediate relay includes a first DC intermediate relay, and the first DC intermediate relay includes: First DC intermediate relay coil; The normally open contact of the first DC intermediate relay is electrically connected to the coil of the first DC intermediate relay and the pneumatic switch, respectively. The normally closed contact of the first DC intermediate relay is electrically connected to the coil of the first DC intermediate relay. The DC intermediate relay includes a second DC intermediate relay, which is electrically connected to the first DC intermediate relay. The second DC intermediate relay includes: Second DC intermediate relay coil; The normally open contact of the second DC intermediate relay is electrically connected to the coil of the second DC intermediate relay. The DC intermediate relay includes a third DC intermediate relay, which is electrically connected to the second DC intermediate relay. The third DC intermediate relay includes: Third DC intermediate relay coil; The normally open contact of the third DC intermediate relay is electrically connected to the second DC intermediate relay. The time relay is electrically connected to the third DC intermediate relay. The time relay includes a normally open contact, which is electrically connected to the third DC intermediate relay. The signal light includes a first signal light, which is electrically connected to the normally open contact of the first DC intermediate relay. The signal light includes a second signal light, which is electrically connected to the normally closed contact of the first DC intermediate relay. The signal light includes a third signal light, which is electrically connected to the normally open contact of the third DC intermediate relay.

2. A pneumatic pipe sampler for powdery materials according to claim 1, characterized in that, The electronic control component includes: A pneumatic switch is connected to a pneumatic tube and detects the air pressure inside the tube. The main switch button is electrically connected to the gas pressure switch.

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