Automatic sampling device on carbon black production line

Abstract

The invention relates to the technical field of carbon black production, in particular to an automatic sampling device on a carbon black production line, which comprises an isolation cylinder, a sampling assembly, a turntable and a sample collection cup, the isolation cylinder is arranged at a sampling port of equipment to be sampled, and is provided with an isolation cavity and a sample outlet; the sampling assembly is arranged in the isolation cavity, and can move along the inner wall of the isolation cavity to penetrate through the sampling opening to sample carbon black in to-be-sampled equipment or convey the sampled carbon black to the sample outlet; the turntable is arranged at the sample outlet and can rotate around the axis of the turntable; the sample collecting cups are arranged on the turntable at intervals, and can be driven by the turntable to sequentially rotate to the sample outlet around the axis of the turntable. According to the automatic sampling device, the sampling interval time can be accurately controlled, full-automatic sampling is realized, the representativeness and accuracy of sampling are improved, and the product quality is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of carbon black production, and in particular to an automatic sampling device on a carbon black production line. Background Art

[0002] During the carbon black production process, it is necessary to regularly sample the carbon black from the dryer for intermediate testing to monitor product quality and make timely adjustments to the production process.

[0003] At present, carbon black sampling is mostly done manually, that is, a small amount of carbon black is collected manually at the sampling port of the dryer and taken back to the laboratory for testing. This manual sampling method has some problems, such as the sampling frequency is greatly affected by human factors, the sampling interval is not accurate, and it is difficult to ensure the representativeness of the sampling. In addition, during the manual sampling process, workers need to be exposed to dust and high temperature for a long time, which poses certain safety hazards. Summary of the invention

[0004] The present application provides an automatic sampling device on a carbon black production line, which is used to solve the problem that the manual sampling method in the prior art has inaccurate interval time and is difficult to ensure the representativeness of the sampling.

[0005] The present application provides an automatic sampling device on a carbon black production line, comprising: The isolation cylinder is arranged at the sampling hole of the device to be sampled and has an isolation cavity and a sample outlet; The sampling assembly is arranged in the isolation chamber, and can move along the inner wall of the isolation chamber and pass through the sampling hole to sample the carbon black in the sampling device or transport the sampled carbon black to the sampling port; The turntable is arranged at the sample outlet and can rotate around its own axis; The sample collecting cups are arranged on the turntable at intervals. Driven by the turntable, the sample collecting cups can rotate around the axis of the turntable to the sample outlet in sequence.

[0006] In one possible design, the sampling assembly includes: A sampling tube, wherein the sampling tube is provided with a plurality of sampling ports along its axial direction; A central axis is disposed in the sampling tube and is movable along its axial direction; The tube core is sleeved on the central axis at intervals. Driven by the central axis, the tube core can move along the axial direction of the sampling tube to block or open the sampling port.

[0007] In a possible design, an airway is formed in the central axis, and air holes are respectively opened at positions between two adjacent tube cores on the central axis. The air holes are connected to the airway, and the ends of the airway are connected to the negative pressure machine.

[0008] In a possible design, the end of the airway is also connected to a blower.

[0009] In a possible design, the central shaft is covered with a filter screen.

[0010] In one possible design, the die at the front end is formed with a tip.

[0011] In a possible design, a tube opening of the sampling tube near the tip forms a limiting portion.

[0012] In a possible design, a guide hole is opened on the isolation tube, the length direction of the guide hole is parallel to the axial direction of the sampling tube, and an ear plate is provided on the outer wall of the sampling tube, and the ear plate is slidably arranged in the guide hole.

[0013] In a possible design, the automatic sampling device on the carbon black production line also includes: A first driving member is connected to the ear plate and is used to drive the ear plate to drive the sampling tube to move axially; The second driving member is connected to the central shaft and is used to drive the central shaft to drive the tube core to move axially.

[0014] In a possible design, the automatic sampling device on the carbon black production line also includes a sealing cover, and a sampling door is provided on the sealing cover.

[0015] The beneficial effects of this application are as follows: The automatic sampling device on the carbon black production line of the present application can automatically complete the sampling of carbon black through the sampling component. By setting a turntable and a sample collecting cup, the sample collecting cup can rotate around the axis of the turntable to the sample outlet in sequence under the drive of the turntable, and can automatically collect the carbon black sample after each sampling into the sample collecting cup. Therefore, the sampling interval time can be accurately controlled, fully automatic sampling can be achieved, the representativeness and accuracy of sampling can be improved, and product quality can be ensured.

[0016] By opening a plurality of sampling ports in the sampling tube, before the sampling tube enters the device to be sampled, the tube core is moved to a position where all the sampling ports are completely blocked, thereby ensuring that carbon black enters the sampling tube during the entry process; after the sampling tube completely enters the device to be sampled (that is, reaches the sampling position), the tube core is moved to a position where it is staggered with all the sampling ports, thereby avoiding the sampling ports and ensuring that the carbon black at various positions in the device to be sampled (close to the tube wall and the center of the pipeline) can enter the sampling tube, thereby avoiding the differences in particle size distribution, impurity content, etc. of the carbon black close to the tube wall and the center of the pipeline generated during the flow of the carbon black, resulting in the sampled carbon black being unrepresentative, thereby ensuring the comprehensiveness and rationality of the sampling. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present application or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of the structure of an automatic sampling device on a carbon black production line provided in an embodiment of the present application; Figure 2 A schematic diagram of the structure of a sampling component of an automatic sampling device on a carbon black production line provided in an embodiment of the present application before sampling; Figure 3 A schematic diagram of the structure of a sampling component of an automatic sampling device on a carbon black production line provided in an embodiment of the present application during the sampling process; Figure 4 A schematic diagram of the structure of a sampling component of an automatic sampling device on a carbon black production line provided in an embodiment of the present application during the sampling process; Figure 5 A schematic diagram of the structure of the central axis of the automatic sampling device on the carbon black production line provided in an embodiment of the present application; Figure 6 A schematic diagram of the structure of a turntable and a sample collecting cup of an automatic sampling device on a carbon black production line provided in an embodiment of the present application.

[0019] Reference numerals: 100, isolation cylinder; 110, isolation chamber; 120, sample outlet; 130, guide hole; 200, device to be sampled; 210, sampling hole; 300, sampling assembly; 310, sampling tube; 311, sampling port; 320, central axis; 330, tube core; 340, air hole; 350, tip; 360, limiter; 400, turntable; 500, sample collecting cup; 610, ear plate; 620, first driving member; 630, screw rod; 640, nut; 650, movable seat; 660, second driving member; 670, connecting block; 700, sealing cover; 710, sampling door. DETAILED DESCRIPTION

[0020] The technical solution of the present application will be described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0021] Combine the following Figure 1-Figure 6 , describes the automatic sampling device on the carbon black production line provided in the examples of the present application.

[0022] Reference Figure 1 , Figure 6 As shown, the automatic sampling device on the carbon black production line provided in the embodiment of the present application includes an isolation cylinder 100, a sampling assembly 300, a turntable 400 and a sample collecting cup 500, which are used to sample the carbon black in the sampling equipment 200, wherein the sampling equipment 200 includes a carbon black dryer and a carbon black conveying pipeline and other equipment and conveying structures on the carbon black production line.

[0023] The isolation cylinder 100 is arranged at the sampling hole 210 of the device 200 to be sampled, and the isolation cylinder 100 has an isolation chamber 110 and a sample outlet 120. A movable door is installed at the sampling hole 210 of the device 200 to be sampled, and the movable door is opened when sampling is required. The sampling assembly 300 is arranged in the isolation chamber 110, and the sampling assembly 300 can move along the inner wall of the isolation chamber 110 and pass through the sampling hole 210 to sample the carbon black in the device 200 to be sampled or transport the sampled carbon black to the sample outlet 120. The turntable 400 is arranged at the sample outlet 120, and the rotating shaft of the turntable 400 can rotate around its own axis driven by the motor; the sample collecting cups 500 are arranged on the turntable 400 at intervals, and the sample collecting cups 500 are synchronously rotated around the axis of the turntable 400 to the sample outlet 120 in sequence under the drive of the turntable 400. On a carbon black production line with an annual capacity of 40,000 tons, the sampling interval is generally once every two hours. For example, six sample collecting cups 500 can be installed. The sample collecting cups 500 are made of stainless steel. Every two hours, the motor rotates for a preset time to move the full cup filled with the sample out of the sample outlet 120 and move the empty cup back to the sample outlet 120.

[0024] The automatic sampling device on the carbon black production line also includes a sealing cover 700, and the isolation cylinder 100, the sampling assembly 300, the turntable 400 and the sample collection cup 500 are all placed in the sealing cover 700. The sealing cover 700 is provided with a sampling door 710. The sampling door 710 is normally closed, and when the sample collection cup 500 needs to be taken, the sampling door 710 is opened. The sealing cover 700 ensures that the sampling environment will not be polluted, effectively controls dust pollution, and protects the health and safety of operators.

[0025] Reference Figure 2 As shown, the sampling assembly 300 includes a sampling tube 310, a central axis 320 and a tube core 330. The sampling tube 310 is provided with a plurality of sampling ports 311 along its axial direction. The central axis 320 is disposed in the sampling tube 310 and can move along its axial direction. The tube core 330 is sleeved on the central axis 320 at intervals. The tube core 330 can move along the axial direction of the sampling tube 310 driven by the central axis 320 to block or open the sampling ports 311.

[0026] Specifically, refer to Figure 2As shown, before the sampling tube 310 enters the device to be sampled 200, the tube core 330 is moved to a position where all the sampling ports 311 are completely blocked, ensuring that no carbon black enters the sampling tube 310 during the process of the sampling tube 310 entering the device to be sampled 200, thereby preventing the carbon black in the sampling tube 310 from only coming from the position near the sampling port 311.

[0027] Reference Figure 3 As shown, after the sampling tube 310 completely enters the device to be sampled 200 (that is, reaches the sampling position), the tube core 330 is moved to a position where it will be staggered with all the sampling ports 311, thereby avoiding the sampling ports 311 and ensuring that the carbon black at various positions (close to the tube wall and the center of the pipeline) in the device to be sampled 200 can enter the sampling tube 310, thereby avoiding the differences in particle size distribution, impurity content, etc. of the carbon black close to the tube wall and the center of the pipeline generated during the flow of the carbon black, resulting in the sampled carbon black being unrepresentative, thereby ensuring the comprehensiveness and rationality of the sampling.

[0028] Reference Figure 5 As shown, in some embodiments, an air channel is formed in the central shaft 320, and air holes 340 are respectively opened at positions between two adjacent tube cores 330 on the central shaft 320, and the air holes 340 are connected to the air channel, and the end of the air channel is connected to the negative pressure machine. During the sampling process, the negative pressure machine is turned on to form a negative pressure environment in the air channel, so as to facilitate the external carbon black to smoothly enter the sampling tube 310.

[0029] In some embodiments, the end of the air passage is also connected to a blower. When sampling is completed, the blower is turned on to form a positive pressure environment in the air passage, which is conducive to allowing the carbon black in the sampling tube 310 to completely enter the sample outlet 120.

[0030] In some embodiments, a filter is coated on the central shaft 320 to prevent carbon black from entering the air passage through the air holes 340 .

[0031] In some specific embodiments, the tube core 330 at the front end is formed with a tip 350, for example, the tube core 330 at the front end is formed with a conical structure. In this way, when the sampling tube enters the device 200 to be sampled, the resistance can be reduced and the sampling position can be reached smoothly.

[0032] In some specific embodiments, a limiting portion 360 is formed at the tube mouth of the sampling tube 310 near the tip 350, and the limiting portion 360 is located at the arc edge adapted to the tip 350, so as to prevent the tube core 330 from shifting, and ensure that each tube core 330 can block the corresponding sampling port 311. In addition, it can ensure that the volume of the sampling space corresponding to each sampling port 311 is equal, and ensure that the sampling amount of the sample at each position is equal.

[0033] Reference Figure 1 As shown, in some specific embodiments, a guide hole 130 is provided on the isolation tube 100, and the length direction of the guide hole 130 is parallel to the axial direction of the sampling tube 310. The outer wall of the sampling tube 310 is provided with an ear plate 610, and the ear plate 610 is slidably arranged in the guide hole 130. A first driving member 620 is connected with the ear plate 610, and the first driving member 620 is used to drive the ear plate 610 to drive the sampling tube 310 to move axially. Specifically, the first driving member 620 is a motor. The output shaft of the motor is connected to the screw rod 630 through a coupling, and a nut 640 is provided on the outer wall of the isolation tube 100. The screw rod 630 is threadedly connected with the nut 640. The rotation of the motor can drive the screw rod 630 to rotate, thereby driving the ear plate 610 and the sampling tube 310 to move axially, so that the sampling tube 310 enters the device 200 to be sampled or is extracted from the device 200 to be sampled.

[0034] The second driving member 660 is connected to the central shaft 320, and the second driving member 660 is a cylinder. Specifically, the screw rod 630 is also sleeved with a moving seat 650, and the moving seat 650 has an axial hole, and the central shaft 320 passes through the axial hole. The rotation of the motor can drive the screw rod 630 to rotate, and then drive the moving seat 650 to move axially along the central shaft 320, so as to ensure that the central shaft 320 and the sampling tube 310 move synchronously during the process of the sampling tube 310 entering the device 200 to be sampled or being withdrawn from the device 200 to be sampled. A connecting block 670 is also sleeved on the central shaft 320, and the output end of the cylinder is connected to the connecting block 670. The cylinder can drive the connecting block 670 and the central shaft 320 to move axially, and then drive the tube core 330 to move axially.

[0035] The working process of the automatic sampling device on the carbon black production line of this application is as follows: Reference Figure 2 As shown, before sampling, the second driving member 660 is started to move the tube core 330 to a position where all the sampling ports 311 are completely blocked; the first driving member 620 is started to allow the sampling tube 310 to enter the device to be sampled 200. Since the sampling ports 311 are blocked, no carbon black enters the sampling tube 310 during the process of entering the device to be sampled 200.

[0036] Reference Figure 3 As shown, after the sampling tube 310 completely enters the device to be sampled 200 (that is, reaches the sampling position), the second driving member 660 is started again to move the tube core 330 to a position where it will be staggered with all the sampling ports 311, thereby avoiding the sampling ports 311 and ensuring that the carbon black at various positions (close to the tube wall and the center of the pipeline) in the device to be sampled 200 can enter the sampling tube 310. The negative pressure machine is started to use the negative pressure environment to allow the carbon black to quickly enter the sampling tube 310.

[0037] Reference Figure 4 As shown, the first driving member 620 is started again to move the sampling tube 310 from the sampling device 200 to the isolation cylinder 100. The second driving member 660 is started again to move the tube core 330 to the right. At this time, the carbon black in the sampling tube 310 is taken out by the tube core 330 to the right end of the sampling tube 310, and flows out from the discharge port of the isolation cylinder 100 to the sample collection cup 500. During this process, the blower can be started to blow off the carbon black remaining on the filter screen. A sampling operation is completed. The tube core 330 is reset.

[0038] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0039] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0040] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0042] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. An automatic sampling device on a carbon black production line, characterized in that: include: The isolation cylinder is arranged at the sampling hole of the device to be sampled and has an isolation cavity and a sample outlet; A sampling assembly is disposed in the isolation chamber and is capable of moving along the inner wall of the isolation chamber and passing through the sampling hole to sample the carbon black in the device to be sampled or to transport the sampled carbon black to the sampling port; A turntable, arranged at the sample outlet, capable of rotating around its own axis; The sample collecting cups are arranged on the rotating disk at intervals. Driven by the rotating disk, the sample collecting cups can rotate around the axis of the rotating disk to the sample outlet in sequence.

2. The automatic sampling device on the carbon black production line according to claim 1, characterized in that: The sampling assembly comprises: A sampling tube, wherein the sampling tube is provided with a plurality of sampling ports along its axial direction; A central axis is disposed in the sampling tube and is movable along its axial direction; The tube core is sleeved on the central axis at intervals. Driven by the central axis, the tube core can move along the axial direction of the sampling tube to block or open the sampling port.

3. The automatic sampling device on the carbon black production line according to claim 2, characterized in that: An airway is formed in the central axis, and air holes are respectively provided at positions between two adjacent tube cores on the central axis. The air holes are connected to the airway, and the ends of the airway are connected to the negative pressure machine.

4. The automatic sampling device on the carbon black production line according to claim 3 is characterized in that: The end of the air passage is also communicated with a blower.

5. The automatic sampling device on the carbon black production line according to claim 4 is characterized in that: The central axis is coated with a filter screen.

6. The automatic sampling device on the carbon black production line according to claim 5, characterized in that: The tube core located at the front end is formed with a tip.

7. The automatic sampling device on the carbon black production line according to claim 6 is characterized in that: A tube mouth of the sampling tube close to the tip forms a limiting portion.

8. The automatic sampling device on the carbon black production line according to claim 7, characterized in that: A guide hole is provided on the isolation tube, the length direction of the guide hole is parallel to the axial direction of the sampling tube, and an ear plate is provided on the outer wall of the sampling tube, and the ear plate is slidably arranged in the guide hole.

9. The automatic sampling device on the carbon black production line according to claim 8, characterized in that: Also includes: A first driving member, connected to the ear plate, and used to drive the ear plate to drive the sampling tube to move axially; The second driving member is connected to the central shaft and is used to drive the central shaft to drive the tube core to move axially.

10. The automatic sampling device on the carbon black production line according to claim 1, characterized in that: It also includes a sealing cover, on which a sampling door is provided.

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