Close refined oil weighing device

Abstract

The utility model discloses a dense refined oil weighing device which comprises an oil primary weighing hopper, the bottom of the oil primary weighing hopper is connected with an oil secondary weighing hopper through a first channel, the bottom of the oil secondary weighing hopper is connected with a feeding hopper through a second channel, and the oil primary weighing hopper and the oil secondary weighing hopper are both provided with weighing sensing devices. A plurality of process oil material conveying pipelines are arranged above the oil material primary weighing hopper, the lower portion of the oil material primary weighing hopper is connected with a waste storage tank through a waste discharging pipeline, a first air pressure valve is arranged on each process oil material conveying pipeline, and side pipelines connected in parallel are installed on the portions, at the two ends of each first air pressure valve, of the process oil material conveying pipelines; in the production process, oil materials are weighed twice, so that weight verification is carried out on the dense oil materials weighed every time, the situation that abnormal deviation occurs in dense oil material weighing is further reduced, and the reliability of oil material weighing in the internal mixing process is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of internal mixers, in particular to an internal mixing oil material weighing device. Background Art

[0002] An internal rubber mixer, also known as a kneader, is primarily used for plasticating and mixing rubber. An internal mixer is a machine equipped with a pair of rotors of a specific shape that rotate relative to each other, intermittently plasticating and mixing polymer materials in a closed environment with adjustable temperature and pressure. Tires are primarily made from synthetic rubber. The production process involves mixing natural rubber with a variety of other raw materials according to a specific process ratio before mixing in an internal mixer. The ability to effectively control and accurately monitor the weight of ingredients in the internal mixing process during tire production directly impacts subsequent production efficiency and, in turn, the final product quality of tires and other rubber products. In the existing technology, such as patent CN216465529U, an oil weighing and anti-overflow device, discloses that an oil weighing hopper is suspended on the top of the inner cavity of the oil tank via a hanging rod and an oil weighing sensor, and the top of the discharge hopper is connected to the discharge pipe of the oil weighing hopper via the oil weighing hopper discharge valve. The ambient temperature value measured by the temperature sensor is compared with the sensor in the oil tank to determine whether an abnormality occurs. However, there is only one oil weighing hopper and no secondary weighing of the oil, which is not conducive to further ensuring the accuracy of the oil addition weight. Utility Model Content

[0003] The purpose of the present invention is to overcome the above-mentioned defects or problems in the background technology and provide a refining oil weighing device.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] A refining oil weighing device includes a primary oil weighing hopper, the bottom of the primary oil weighing hopper is connected to a secondary oil weighing hopper through a first channel, and the bottom of the secondary oil weighing hopper is connected to a feed hopper through a second channel. The primary oil weighing hopper and the secondary oil weighing hopper are both provided with weighing sensors for weighing the oil. A plurality of process oil conveying pipelines are provided above the primary oil weighing hopper. A raised pipe section is provided at the end of the process oil conveying pipeline toward the primary oil weighing hopper, and the tail of the raised pipe section is downward toward the primary oil weighing hopper. A heating device is provided on the outside of the feed hopper.

[0006] In certain embodiments of the present invention, the first channel and the second channel are both provided with switch valves; a feed channel is provided at the bottom of the feed hopper, and a feed valve is provided on the feed channel; the weighing sensor device, the switch valve, and the feed valve are all communicatively connected to the PLC control device.

[0007] In certain embodiments of the present invention, the feed channel is connected to the oil barrel.

[0008] In certain embodiments of the present invention, a first air pressure valve is provided on the process oil delivery pipeline, and parallel bypass lines are installed on the process oil delivery pipelines at both ends of the first air pressure valve, and the bypass lines are provided with a second air pressure valve. The first air pressure valve and the second air pressure valve are communicatively connected to the PLC control device.

[0009] In certain embodiments of the present invention, the first air pressure valve is a fast-increasing air pressure valve, and the second air pressure valve is a slow-increasing air pressure valve.

[0010] In certain embodiments of the present invention, the oil primary weighing hopper is connected to a waste storage tank via a waste discharge pipeline. A level meter is provided in the waste storage tank, and the level meter is connected to an alarm device.

[0011] In certain embodiments of the present invention, the bottom of the oil secondary weighing hopper is connected to a waste storage tank.

[0012] In certain embodiments of the present invention, the waste discharge pipeline includes a first pipeline, the first pipeline is connected to a first oil hopper, the first oil hopper is downwardly connected to a second oil hopper, and the second oil hopper is downwardly connected to a waste storage tank; the secondary oil weighing hopper is connected to the second oil hopper of the waste discharge pipeline through a second pipeline, and the first pipeline and the second pipeline are both provided with waste oil discharge valves, which are communicatively connected to the PLC control device.

[0013] In certain embodiments of the present invention, the primary oil weighing hopper, the secondary oil weighing hopper, and the feed hopper are arranged inside the device shell, the heating device includes a heating coil and a temperature measuring device for detecting the heating condition of the heating coil, the heating coil is installed on the inner side of the device shell, the temperature measuring device is installed on the device shell, and the temperature measuring probe of the temperature measuring device extends into the device shell.

[0014] From the above description of the present invention, it can be seen that compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. In the production process, the oil is weighed twice, so that the weight of the refining oil weighed each time is verified, which further reduces the abnormal deviation of the refining oil weighing, reduces the oil out-of-tolerance defects, helps to reduce the processing time of abnormal refining oil weighing, effectively improves the reliability and operability of oil weighing in the refining process, and also improves the stability of the rubber compound.

[0016] 2. A heating device and a temperature measuring device for detecting the heating condition of the heating device are provided on the outside of the feed hopper. The heating device heats the feed hopper.

[0017] 3. The weighing process is controlled by the PLC control device to realize automatic weighing, feeding and waste discharge of oil, ensuring the accuracy of oil weighing. When the oil weight exceeds the tolerance, the waste oil discharge valve will be controlled to discharge the excess oil into the waste storage tank, so that the weight of the oil in the oil weighing hopper meets the standard weight.

[0018] 4. The first and second air pressure valves arranged on the process oil delivery pipeline control different feeding speeds. The two are used together to effectively ensure the accuracy of oil weighing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the layout of the waste discharge pipeline of the utility model;

[0022] Figure 3 This is a schematic diagram of Example 3 of the present utility model;

[0023] Description of main reference numerals:

[0024] 1. Oil primary weighing hopper, 10. First channel, 2. Oil secondary weighing hopper, 20. Second channel, 3. Feed hopper, 30. Feed channel, 4. Weighing sensor device, 5. Process oil delivery pipeline, 50. Raised pipe section, 51. First air pressure valve, 52. Bypass pipeline, 53. Second air pressure valve, 54. Main control valve, 6. Heating device, 60. Temperature measuring device, 7. Waste discharge pipeline, 70. Waste storage tank, 71. Waste oil discharge valve, 72. First pipeline, 73. First oil hopper, 74. Second oil hopper, 75. Second pipeline, 8. Switch valve, 9. Device housing. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] In the claims, description and the above-mentioned drawings of the present utility model, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" is to distinguish different objects rather than to describe a specific order.

[0027] In the claims, specification and the above-mentioned drawings of the present utility model, unless otherwise expressly defined, directional words, such as the terms "center", "transverse", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise" and the like, indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present utility model.

[0028] In the claims, specification and the above drawings of the present utility model, unless otherwise clearly defined, if the terms "fixed connection" or "fixed connection" are used, they should be understood in a broad sense, that is, any connection method without any displacement relationship and relative rotation relationship between the two parties, that is to say, including non-detachable fixed connection, detachable fixed connection, integral connection and fixed connection through other devices or elements.

[0029] In the claims, description and drawings of the present utility model, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0030] Example 1, see Figure 1-2 :

[0031] A refining oil weighing device comprises an oil primary weighing hopper 1, an oil secondary weighing hopper 2 and a feed hopper 3.

[0032] The bottom of the primary oil weighing hopper 1 is connected to the secondary oil weighing hopper 2 via a first channel 10, and the bottom of the secondary oil weighing hopper 2 is connected to the feed hopper 3 via a second channel 20. Both the primary oil weighing hopper 1 and the secondary oil weighing hopper 2 are equipped with a weighing sensor 4. The use of secondary oil weighing allows the weight of each weighed refined oil to be verified during the production process, further reducing abnormal deviations in the refining oil weighing, reducing oil out-of-tolerance defects, and effectively improving the reliability and operability of oil weighing during the refining process.

[0033] A plurality of process oil delivery pipelines 5 are provided above the oil primary weighing hopper 1. The outlets of the process oil delivery pipelines 5 are connected to the oil primary weighing hopper 1 from above. Specifically, a raised pipe section 50 is provided at the end of the process oil delivery pipeline 5 toward the oil primary weighing hopper 1. The tail of the raised pipe section 50 is downwardly directed toward the oil primary weighing hopper 1 to prevent excess oil on the process oil delivery pipeline 5 from falling into the oil primary weighing hopper 1, thereby ensuring the accuracy of oil addition.

[0034] As an implementation manner, different process oil delivery pipelines 5 may have different pipe diameter specifications, and the process oil delivery pipelines 5 are installed with valves.

[0035] A heating device 6 is provided outside the feed hopper 3 , and the heating device 6 heats the feed hopper 3 .

[0036] It can be understood that the front end of the process oil delivery pipeline 5 is connected to the oil storage tank body, and the oil stored in the oil storage tank body enters the device through the process oil delivery pipeline 5 for weighing and adding.

[0037] The oil primary weighing hopper 1 is connected to a waste storage tank 70 through a waste discharge pipe 7 below. A waste oil discharge valve 71 is provided on the waste discharge pipe 7. If the weighing sensor device 4 detects that the weight of the oil in the oil primary weighing hopper 1 exceeds the tolerance, the corresponding waste oil discharge valve 71 will be controlled to discharge the excess oil into the waste storage tank 70, so that the weight of the oil in the oil primary weighing hopper 1 meets the standard weight.

[0038] It is understood that before the device is used, the weight sensing device 4 can be calibrated using a standard weight.

[0039] A level meter is provided in the waste tank 70, and the level meter is connected to an alarm device. When the oil in the waste tank 70 exceeds the height set by the level meter, the alarm function of the alarm device is triggered, prompting the staff to pour out the waste oil in the waste tank 70.

[0040] As an embodiment, the bottom of the secondary oil weighing hopper 2 is connected to the waste storage tank 70. Preferably, the waste discharge pipeline 7 includes a first pipeline 72, which is connected to a first oil hopper 73, which is downwardly connected to a second oil hopper 74, which is downwardly connected to the waste storage tank 70; the secondary oil weighing hopper 2 is connected to the second oil hopper 74 of the waste discharge pipeline 7 via a second pipeline 75, and the second pipeline 75 is also provided with a waste oil discharge valve 71.

[0041] As an embodiment, both the first channel 10 and the second channel 20 are provided with a switch valve 8; a feed channel 30 is provided at the bottom of the feed hopper 3, and a feed valve is provided on the feed channel 30.

[0042] As an embodiment, the feed channel 30 is connected to the oil barrel. After the oil is weighed and calibrated twice, it enters the oil barrel through the feed channel 30 from the feed hopper 3 to proceed to subsequent process steps.

[0043] As an implementation method, the weighing sensor device 4, the switch valve 8, the feed valve, and the waste oil discharge valve 71 are all communicatively connected to the PLC control device, and the PLC control device controls the weighing process to realize automatic weighing, feeding and discharge of the oil, thereby ensuring the accuracy of the oil weighing.

[0044] Working principle:

[0045] The oil stored in the oil storage tank enters the oil primary weighing hopper 1 through the process oil delivery pipeline 5 for weighing. The weight sensor feeds back the oil weight measured by the oil primary weighing hopper 1 to the PLC control device. If the oil weight is lower than the set value, the oil is continuously added to the set value. When the oil weight is within the set value, the process oil delivery pipeline 5 stops adding oil, and the switch valve 8 on the first channel 10 is opened. The oil is unloaded to the oil secondary weighing hopper 2 through the first channel 10, and the corresponding weighing sensor device 4 performs a secondary weighing to verify the oil. If the re-verification is qualified, the oil is discharged to the feed hopper 3 to complete the oil weighing of the current vehicle; if the oil weight in the oil primary weighing hopper 1 exceeds the set value, the waste oil discharge valve 71 is controlled to discharge the excess oil to the waste storage tank 70 so that the weighed oil weight meets the set value.

[0046] Example 2:

[0047] Repeat Example 1, but the oil primary weighing hopper 1, the oil secondary weighing hopper 2, and the feed hopper 3 are all arranged in the device shell 9, and the heating device 6 includes a heating coil and a temperature measuring device 60 for detecting the heating condition of the heating coil. The heating coil is installed on the inner side of the device shell 9, and the temperature measuring device 60 is installed on the device shell 9 and the temperature measuring probe of the temperature measuring device 60 extends into the device shell 9.

[0048] Preferably, the heating coil is made of stainless steel, and the temperature measuring device 60 includes a PT100 temperature measuring resistor, and the number of the PT100 temperature measuring resistor is at least one.

[0049] As an embodiment, the device housing 9 is provided with an inspection and opening door which is rotatable by a door shaft, so as to facilitate maintenance and repair workers of the device.

[0050] As an embodiment, the weighing sensor device 4 includes a hanging rod and an oil weighing sensor, and the oil weighing hopper is suspended on the top of the inner cavity of the device housing 9 via the hanging rod and the oil weighing sensor. Furthermore, a weight tray is installed on the outside of the oil weighing hopper or on the hanging rod to facilitate calibration.

[0051] Example 3, see Figure 3 :

[0052] Example 1 is repeated, but several process oil delivery pipelines 5 are provided above the oil primary weighing hopper 1. The valves installed in the process oil delivery pipeline 5 include a first air pressure valve 51, a second air pressure valve 53, and a master control valve 54. The process oil delivery pipeline 5 is provided with a first air pressure valve 51. Parallel bypass pipelines 52 are installed on the process oil delivery pipelines 5 at both ends of the first air pressure valve 51. The bypass pipelines 52 are provided with second air pressure valves 53. The feeding speed is controlled by different first air pressure valves 51 and second air pressure valves 53, which helps to ensure the accuracy of the feeding amount. Specifically, the feeding speeds controlled by the first air pressure valve 51 and the second air pressure valve 53 are different.

[0053] As an implementation manner, the first air pressure valve 51 and the second air pressure valve 53 are communicatively connected to a PLC control device.

[0054] As an embodiment, a master control valve 54 is provided at the front end of the process oil delivery pipeline 5 , and the oil passes through the first air pressure valve 51 or the second air pressure valve 53 according to demand after passing through the master control valve 54 .

[0055] As an embodiment, the first air pressure valve 51 is a fast-adding air pressure valve, and the second air pressure valve 53 is a slow-adding air pressure valve. In actual use, when weighing oil, the fast-adding air pressure valve can be opened first to quickly add oil, and then the fast-adding air pressure valve can be closed and the slow-adding air pressure valve can be opened to slowly add oil to the required weight, thereby effectively ensuring the accuracy of oil weighing.

[0056] The above description and embodiments are used to explain the scope of protection of the utility model, but do not constitute a limitation on the scope of protection of the utility model. Based on the enlightenment of the utility model or the above embodiments, modifications, equivalent replacements, or other improvements to the embodiments of the utility model or part of the technical features thereof that can be obtained by ordinary technicians in this field through logical analysis, reasoning, or limited experiments in combination with common knowledge, ordinary technical knowledge in this field and / or existing technology should be included in the scope of protection of the utility model.

Claims

1. A refining oil weighing device, characterized in that: The invention comprises a primary oil weighing hopper (1), the bottom of which is connected to a secondary oil weighing hopper (2) via a first channel (10), and the bottom of which is connected to a feed hopper (3) via a second channel (20). The primary oil weighing hopper (1) and the secondary oil weighing hopper (2) are both provided with a weighing sensor device (4) for weighing the oil. A plurality of process oil delivery pipelines (5) are provided above the primary oil weighing hopper (1). The process oil delivery pipelines (5) are provided with a protruding pipe section (50) at the end facing the primary oil weighing hopper (1), and the tail of the protruding pipe section (50) faces downwardly towards the primary oil weighing hopper (1). A heating device (6) is provided on the outside of the feed hopper (3).

2. A refining oil weighing device according to claim 1, characterized in that: The first channel (10) and the second channel (20) are both provided with a switch valve (8); a feed channel (30) is provided at the bottom of the feed hopper (3), and a feed valve is provided on the feed channel (30); the weighing sensor device (4), the switch valve (8), and the feed valve are all communicatively connected to a PLC control device.

3. A refining oil weighing device according to claim 2, characterized in that: The feed channel (30) is connected to the oil tank.

4. A refining oil weighing device according to claim 2, characterized in that: The process oil delivery pipeline (5) is provided with a first air pressure valve (51), and parallel bypass pipelines (52) are installed on the process oil delivery pipeline (5) at both ends of the first air pressure valve (51), and the bypass pipeline (52) is provided with a second air pressure valve (53). The first air pressure valve (51) and the second air pressure valve (53) are communicatively connected to a PLC control device.

5. A refining oil weighing device according to claim 4, characterized in that: The first air pressure valve (51) is a fast air pressure valve, and the second air pressure valve (53) is a slow air pressure valve.

6. The refining oil weighing device according to claim 1, characterized in that: The oil primary weighing hopper (1) is connected to a waste storage tank (70) via a waste discharge pipeline (7); a material level meter is provided in the waste storage tank (70), and the material level meter is connected to an alarm device.

7. The refining oil weighing device according to claim 6, characterized in that: The bottom of the oil secondary weighing hopper (2) is connected to the waste storage tank (70).

8. The refining oil weighing device according to claim 7, characterized in that: The waste discharge pipeline (7) comprises a first pipeline (72), the first pipeline (72) is connected to a first oil hopper (73), the first oil hopper (73) is downwardly connected to a second oil hopper (74), and the second oil hopper (74) is downwardly connected to a waste storage tank (70); the oil secondary weighing hopper (2) is connected to the second oil hopper (74) of the waste discharge pipeline (7) through a second pipeline (75), and the first pipeline (72) and the second pipeline (75) are both provided with a waste oil discharge valve (71), and the waste oil discharge valve (71) is communicatively connected to a PLC control device.

9. A refining oil weighing device according to any one of claims 1 to 8, characterized in that: The oil primary weighing hopper (1), the oil secondary weighing hopper (2), and the feed hopper (3) are arranged in a device housing (9); the heating device (6) comprises a heating coil and a temperature measuring device (60) for detecting the heating condition of the heating coil; the heating coil is installed inside the device housing (9); the temperature measuring device (60) is installed on the device housing (9), and a temperature measuring probe of the temperature measuring device (60) extends into the device housing (9).

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