Online material uniformity testing device

Abstract

The invention relates to the technical field of material uniformity testing, and discloses an online material uniformity testing device which comprises a material taking mechanism, a feeding mechanism and a weighing mechanism, the material taking mechanism is arranged on one side of the bottom of a material uniformizing barrel, when the material taking mechanism is opened, materials are discharged out of the material uniformizing barrel to serve as test samples, and the feeding mechanism conveys the test samples to advance; the weighing mechanism comprises a constant-volume cavity and a gravity sensor, and after the constant-volume cavity is filled with the advancing test sample, the gravity sensor measures the weight of the test sample in the constant-volume cavity. According to the invention, the online uniformity detection of the material in the mixing process can be realized, the mixing detection capability of the material is effectively improved, the manual sampling process is reduced, the automatic control of the testing device is realized, and the manual intervention is reduced to the greatest extent, so that the operation risk is effectively reduced, and the personnel safety is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of material uniformity testing technology, specifically to an online material uniformity testing device. Background Technology

[0002] With continuous economic development, the generation of solid hazardous waste is rapidly increasing. As a necessary pre-treatment step in solid hazardous waste management, the degree of material homogenization achieved by material homogenization devices has become a key indicator for evaluating equipment performance. Especially in large-scale and ultra-large-scale solid hazardous waste treatment industries requiring batch processing, material homogenization, as a core indicator of material mixing, directly impacts equipment performance. Current testing methods primarily involve using tools to extract a certain amount of material from the homogenization cylinder as a test sample. Manually sampling from a high-speed rotating cylinder is dangerous, typically requiring the machine to be stopped for sampling. The test sample is then divided and homogenized, resulting in low automation and significant time and labor costs.

[0003] To improve the timeliness of testing and the level of equipment automation, it is particularly important to design a device that can achieve online testing. Summary of the Invention

[0004] The purpose of this invention is to provide an online material uniformity testing device to solve the problems raised in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an online material uniformity testing device, the device comprising: A material distribution cylinder is used to load and uniformly mix materials conveyed into it. The material handling mechanism is located on one side of the bottom of the material distribution cylinder. When the material handling mechanism is opened, the material is discharged outside the material distribution cylinder as a test sample. The feeding mechanism is used to advance the test samples; The weighing mechanism includes a fixed-volume cavity, a gravity sensor, and a limit sensor. The test sample is advanced into the fixed-volume cavity. After the limit sensor detects that the volume of the test sample in the fixed-volume cavity has reached a preset value, the gravity sensor measures the weight of the test sample in the fixed-volume cavity, and the sample is unloaded after measurement.

[0006] Furthermore, the material handling mechanism includes a side baffle and a power component 1 disposed on the material distribution cylinder. A material handling port is provided on one side of the bottom of the material distribution cylinder. The power component 1 drives the side baffle to rise and fall, so that the side baffle controls the opening and closing of the material handling port.

[0007] Further, the feeding mechanism is a belt conveyor and a hopper, the belt conveyor comprising a feeding end and a discharging end, the feeding mechanism further comprising a discharging platform arranged at the corresponding material taking opening of the material mixing cylinder, the discharging platform extending above the feeding end of the belt conveyor, and the hopper being arranged at the discharging end of the belt conveyor, with the lower outlet of the hopper being aligned with the weighing mechanism.

[0008] Further, the weighing mechanism further comprises a support frame, a weighing box, a bottom baffle, a gravity sensor and a power element two, the support frame being arranged inside the feeding mechanism, the gravity sensor being arranged on the support frame, and the weighing box being arranged on the gravity sensor.

[0009] Further, the fixed volume cavity is arranged in the weighing box, and the fixed volume cavity is provided with an upward opening aligned with the lower outlet of the hopper.

[0010] Further, the bottom of the weighing box is provided with a discharging opening, the power element two and the bottom baffle being arranged at the bottom of the weighing box, and the power element two driving the bottom baffle to translate so as to open or close the discharging opening of the weighing box.

[0011] Further, the device further comprises a material returning mechanism, the material returning mechanism conveying the material discharged from the bottom of the weighing box back to the material mixing cylinder for uniform mixing or centralized discharging.

[0012] Further, the material mixing cylinder comprises an inner cavity for containing and uniformly mixing the material; The material returning mechanism comprises a horn, a conveying pipeline and a spiral conveying assembly, one end of the conveying pipeline being arranged on the material mixing cylinder and being in communication with the inner cavity, the conveying pipeline being arranged below the weighing mechanism, the horn being arranged on the conveying pipeline away from the material mixing cylinder, the opening of the horn being upward and aligned with the discharging opening of the weighing box, and the spiral conveying assembly being arranged in the conveying pipeline.

[0013] Further, the weighing box is square in shape, and the fixed volume cavity inside the weighing box is inverted conical, and the horn is concentric with the fixed volume cavity.

[0014] Further, the device further comprises a control module, which is used for monitoring whether the test sample filled in the fixed volume cavity reaches a specified position, and controlling the opening and closing and working state of the material taking mechanism and the feeding mechanism on the basis of the monitoring result; and the control module is also used for controlling the power element two on the basis of the detection value of the gravity sensor, so as to unload and seal the bottom of the fixed volume cavity, realize online continuous monitoring, and make the material in the fixed volume cavity enter the material mixing cylinder through the material returning unit, realize one-time material taking and material returning circulation, and end the detection when the recorded material weight value is within an allowable fluctuation range.

[0015] Compared with the prior art, the device has the following beneficial effects: The present application comprises a material taking mechanism, a material feeding mechanism and a weight counting mechanism, the material taking mechanism is arranged at one side of the bottom of the material mixing cylinder, and the material taking mechanism discharges material to the outside of the material mixing cylinder as a test sample when the material taking mechanism is opened, the material feeding mechanism feeds the test sample to advance; the weight counting mechanism comprises a constant volume cavity and a gravity sensor, and the gravity sensor measures the weight of the test sample in the constant volume cavity after the advancing test sample fills the constant volume cavity. The present application can realize online uniformity detection of material in the mixing process, effectively solve the mixing detection ability of the material, reduce the manual sampling process, realize the automatic control of the test device, minimize the manual intervention, thereby effectively reducing the operation risk and protecting the safety of personnel. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a front view of an embodiment of the present application; Figure 2 It is an isometric view of an embodiment of the present application; Figure 3 It is Figure 2 It is an enlarged view of A in the middle; Figure 4 It is an isometric view of the constant volume cavity in an embodiment of the present application; Figure 5 It is a sectional view of the constant volume cavity in an embodiment of the present application; Figure 6 It is a perspective view of the conveying pipeline in an embodiment of the present application; Figure 7 It is a bottom sectional view of the conveying pipeline in an embodiment of the present application; Figure 8 It is a running flow chart of an embodiment of the present application; In the figure: 1, material mixing cylinder; 2, material taking mechanism; 3, material feeding mechanism; 4, weight counting mechanism; 5, material taking port; 6, material discharging port; 7, material returning mechanism; 20, side baffle; 21, power part one; 22, material discharging table; 30, belt conveyor; 31, hopper; 40, constant volume cavity; 41, gravity sensor; 43, support frame; 44, weight counting box; 45, bottom baffle; 46, power part two; 70, trumpet mouth; 71, conveying pipeline; 72, spiral conveying assembly. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0018] Referring to Figures 1-8 , the present application provides a technical solution: an online material uniformity testing device, which comprises: A material mixing barrel 1 for loading and uniformly mixing the material delivered thereto; A material taking mechanism 2 arranged at one side of the bottom of the material mixing barrel 1, which discharges the material outside the material mixing barrel 1 as a test sample when opened; A material feeding mechanism 3 for feeding the test sample forward; A weight measuring mechanism 4 comprising a constant volume cavity 40, a gravity sensor 41 and a limit sensor, the test sample being fed into the constant volume cavity 40; after the limit sensor detects that the volume of the test sample in the constant volume cavity 40 reaches a preset value, the gravity sensor 41 measures the weight of the test sample in the constant volume cavity 40, and then discharges the test sample after measurement.

[0019] It should be noted that the volume of the test sample delivered into the constant volume cavity 40 is preset, the limit sensor is a camera and a fill-in light, which are not shown in the figure, the camera is used to capture the position of the material in the constant volume cavity 40 in real time to determine the volume of the test sample in the constant volume cavity 40.

[0020] Through the weight value and the volume of the test sample in the constant volume cavity 40, the density of the test sample in the constant volume cavity 40 can be calculated, so through the preset volume of the constant volume cavity 40 and the density of the test sample in the constant volume cavity 40, the corresponding weight of the test sample in the constant volume cavity 40 can be obtained; the weight value corresponds to the corresponding uniformity of the test sample. Therefore, the present device only needs to determine the material uniformity through the gravity sensor 41.

[0021] The higher the uniformity of the material in the material mixing barrel 1, the smaller the weight difference of the same volume of material taken before and after, specifically: when the newly measured weight is compared with the last detected weight, the difference is not within the allowable range, the bottom baffle 45 of the weight measuring mechanism 4 is opened and then closed to open the discharge port 6; the opening realizes the discharging function, the closing controls the operation of the material feeding mechanism 3 and the opening of the bottom baffle 45 of the material taking mechanism 2 to realize the circulation of feeding the material into the constant volume cavity 40; when the newly measured weight is compared with the last detected weight, the difference is within the allowable range, the test is completed, and the device is stopped. The present application can realize online uniformity detection of the material during the mixing process, effectively solve the mixing detection ability of the material, and reduce the manual sampling process.

[0022] In an embodiment, the material taking mechanism 2 comprises a side baffle 20 arranged on the material mixing barrel 1 and a power member 21, a material taking port 5 is arranged at one side of the bottom of the material mixing barrel 1, and the power member 21 drives the side baffle 20 to ascend and descend to control the opening and closing of the material taking port 5.

[0023] The feeding mechanism 3 consists of a belt conveyor 30 and a hopper 31. The belt conveyor 30 includes a feeding end and a discharging end. The material receiving mechanism 2 also includes a discharge platform 22 disposed on the material distribution cylinder 1 at the corresponding material receiving port 5. The discharge platform 22 extends above the feeding end of the belt conveyor 30. The hopper 31 is located at the discharging end of the belt conveyor 30, and the lower outlet of the hopper 31 is aligned with the weighing mechanism 4.

[0024] The weighing mechanism 4 further includes a support frame 43, a weighing box 44, a bottom baffle 45, a gravity sensor 41, and a power component 46. The support frame 43 is disposed inside the feeding mechanism 3, the gravity sensor 41 is located on the support frame 43, and the weighing box 44 is disposed on the gravity sensor 41.

[0025] This design, for reference Figures 3-5 Both power components 1 (21) and 2 (46) include a motor, a spur gear, and a rack. They operate on the same principle: the output shaft of motor 1 is connected to the spur gear, which meshes with the rack. The difference lies in the size and installation position of the equipment. For example, the rack of power component 1 (21) is vertically mounted on the side baffle 20, while the rack of power component 2 (46) is horizontally mounted on one side of the bottom baffle 45. Motor 1 drives the spur gear to rotate, and after the spur gear meshes with the rack, it drives the rack to move horizontally. In turn, the rack drives the corresponding bottom baffle 45 or side baffle 20 to move horizontally, so that the side baffle 20 opens or closes the material inlet 5, and the bottom baffle 45 opens or closes the outlet 6.

[0026] Specifically, the fixed volume cavity 40 is located inside the weighing box 44, and the fixed volume cavity 40 has an upward opening that is aligned with the lower outlet of the funnel 31.

[0027] Specifically, the weighing box 44 is provided with a discharge port 6 at the bottom. The second power component 46 and the bottom baffle 45 are located at the bottom of the weighing box 44. The second power component 46 drives the bottom baffle 45 to move horizontally, so that the discharge port 6 of the weighing box 44 opens or closes.

[0028] This design, for reference Figures 2-5 and Figure 8When the material reaches the specified position in the constant volume cavity 40, the feeding mechanism 3 stops working, the power member one 21 drives the side baffle 20 to close the material taking port 5, the feeding mechanism 3 stops running, the gravity sensor 41 records the current weight of the material, then the power member two 46 drives the bottom baffle 45 to open the material discharging port 6, the material in the constant volume cavity 40 is discharged from the material discharging port 6 for unloading, and the unloading is performed; in the unloading process, the belt conveyor 30 runs to drive the remaining material thereon to pass through the feeding mechanism 3 for unloading, and after the unloading is completed, the power member two 46 drives the baffle to reset and close the material discharging port 6; Then the above steps are repeated, and the material is transported to the specified position in the constant volume cavity 40 again for detection, the gravity sensor 41 records the weight of the material at the time, the above process is repeated until the material weight values recorded by the gravity sensor 41 before and after are within the allowable fluctuation range, the testing device stops working and prompts that the mixing is qualified, the material mixing cylinder 1 stops uniform mixing work, and the detection is completed. Through real-time online detection, the automatic control of the testing device can be realized, manual intervention is minimized, the operation risk is effectively reduced, and the safety of personnel is ensured.

[0029] In an embodiment, the device further comprises a material returning mechanism 7, which transports the material discharged from the bottom of the weighing box 44 back to the material mixing cylinder 1 for uniform mixing or centralized discharging.

[0030] In an embodiment, the material mixing cylinder 1 comprises an inner cavity for containing and uniformly mixing the material; The material returning mechanism 7 comprises a trumpet mouth 70, a conveying pipeline 71 and a spiral conveying assembly 72, one end of the conveying pipeline 71 is arranged on the material mixing cylinder 1 and communicates with the inner cavity, the conveying pipeline 71 is located below the weighing mechanism 4, the trumpet mouth 70 is located on the conveying pipeline 71 away from the material mixing cylinder 1, the opening of the trumpet mouth 70 faces upward and is aligned with the material discharging port 6 of the weighing box 44, and the spiral conveying assembly 72 is located in the conveying pipeline 71.

[0031] In this way, the material in the constant volume cavity 40 is discharged from the material discharging port 6 for unloading, and the unloading is performed; in the unloading process, the belt conveyor 30 runs to drive the remaining material thereon to pass through the feeding mechanism 3 for unloading, and after the unloading is completed, the power member two 46 drives the baffle to reset and close the material discharging port 6; Figures 6-7The automatic circulation test process return mechanism 7 continuously works to return the detected material from the horn 70 to the homogenizing cylinder 1 through the spiral conveying assembly 72 until the test result shows that the material is mixed uniformly qualified, and the device stops working. The test sample taken multiple times is not directly discarded, but is also transported back to the homogenizing cylinder 1 to continue the uniform operation; the spiral conveying assembly 72 includes a second motor and a spiral rod, the second motor is located at the end of the conveying pipeline 71 away from the homogenizing cylinder 1, and the spiral rod is arranged in the conveying pipeline 71, and the output shaft of the second motor drives the spiral rod to rotate; the material enters the conveying pipeline 71 from the horn 70, and the spiral rod drives the material in the conveying pipeline 71 to advance to the homogenizing cylinder 1.

[0032] In an embodiment, the metering box 44 is square in shape, and the constant volume cavity 40 in the interior is inverted conical, and the horn 70 is concentric with the constant volume cavity 40.

[0033] Further, the device further includes a control module for monitoring whether the test sample filled in the constant volume cavity 40 reaches a specified position, and the opening and closing and working state of the material taking mechanism 2 and the material feeding mechanism 3 are controlled on the basis of this; at the same time, the detection value of the gravity sensor 41 is used as the basis to control the power part two 46 to unload and seal the bottom of the constant volume cavity 40, so as to realize online continuous monitoring of the material in the constant volume cavity, the material in the constant volume cavity enters the homogenizing cylinder 1 through the return unit, realizes one-time material taking and return circulation, and the detection ends when the recorded material weight value is within the allowable fluctuation range.

[0034] In an embodiment, a camera is preferably used to capture the position of the material in the constant volume cavity 40 in real time.

[0035] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

[0036] It should be noted that if the invention embodiments involve directional indications (such as up and down), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture (as shown in the drawings), and if the certain posture changes, the directional indications also change accordingly.

[0037] In addition, the meaning of "and / or" appearing in the whole text includes three parallel schemes, taking "A and / or B" as an example, including A scheme, or B scheme, or A and B scheme. In addition, if there is a description of "first", "second" and the like in the invention embodiment, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, "multiple" refers to two or more.

[0038] In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of the ordinary skilled in the art, when the combination of technical solutions appears contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist, also not within the protection scope of the invention.

Claims

1. An online material uniformity testing device, characterized in that, The device includes: A uniform mixing cylinder (1) is used to load and uniformly mix the materials conveyed therein; The material taking mechanism (2) is set on one side of the bottom of the material distribution cylinder (1). When the material taking mechanism (2) is opened, the material is discharged to the outside of the material distribution cylinder (1) as a test sample. Feeding mechanism (3) is used to transport test samples forward; The weighing mechanism (4) includes a fixed volume cavity (40), a gravity sensor (41) and a limit sensor. The test sample moves into the fixed volume cavity (40). After the limit sensor detects that the volume of the test sample in the fixed volume cavity (40) reaches a preset value, the gravity sensor (41) measures the weight of the test sample in the fixed volume cavity (40) and unloads the sample after measurement.

2. The online material uniformity testing device according to claim 1, characterized in that, The material taking mechanism (2) includes a side baffle (20) and a power component (21) set on the material equalization cylinder (1). A material taking port (5) is opened on one side of the bottom of the material equalization cylinder (1). The power component (21) drives the side baffle (20) to rise and fall, so that the side baffle (20) controls the opening and closing of the material taking port (5).

3. The online material uniformity testing device according to claim 2, characterized in that, The feeding mechanism (3) consists of a belt conveyor (30) and a hopper (31). The belt conveyor (30) includes a feeding end and a discharging end. The material taking mechanism (2) also includes a discharge platform (22) set on the material equalization cylinder (1) at the corresponding material taking port (5). The discharge platform (22) extends above the feeding end of the belt conveyor (30). The hopper (31) is located at the discharging end of the belt conveyor (30), and the lower outlet of the hopper (31) is aligned with the weighing mechanism (4).

4. The online material uniformity testing device according to claim 2, characterized in that, The weighing mechanism (4) also includes a support frame (43), a weighing box (44), a bottom baffle (45), a gravity sensor (41), and a power component (46). The support frame (43) is located inside the feeding mechanism (3), the gravity sensor (41) is located on the support frame (43), and the weighing box (44) is located on the gravity sensor (41).

5. The online material uniformity testing device according to claim 4, characterized in that, The fixed volume cavity (40) is located inside the weighing box (44), and the fixed volume cavity (40) has an upward opening that is aligned with the lower outlet of the funnel (31).

6. The online material uniformity testing device according to claim 5, characterized in that, The weighing box (44) has a discharge port (6) at the bottom. The power component (46) and the bottom baffle (45) are located at the bottom of the weighing box (44). The power component (46) drives the bottom baffle (45) to move horizontally, so that the discharge port (6) of the weighing box (44) opens or closes.

7. The online material uniformity testing device according to claim 5, characterized in that, The device also includes a return material mechanism (7), which transports the material discharged from the bottom of the weighing box (44) back to the equalization cylinder (1) for uniform mixing or centralized discharge.

8. The online material uniformity testing device according to claim 7, characterized in that, The uniform mixing cylinder (1) includes an inner cavity for holding and uniformly mixing materials; The return material mechanism (7) includes a flared mouth (70), a conveying pipe (71) and a screw conveying assembly (72). One end of the conveying pipe (71) is set on the equalizing cylinder (1) and communicates with the inner cavity. The conveying pipe (71) is located below the weighing mechanism (4). The flared mouth (70) is located on the conveying pipe (71) at the end away from the equalizing cylinder (1). The opening of the flared mouth (70) faces upward and is aligned with the discharge port (6) of the weighing box (44). The screw conveying assembly (72) is located inside the conveying pipe (71).

9. The online material uniformity testing device according to claim 8, characterized in that, The weighing box (44) is square on the outside and has an inverted cone-shaped fixed volume cavity (40) inside. The flared mouth (70) is concentric with the fixed volume cavity (40).

10. The online material uniformity testing device according to claim 9, characterized in that, The device also includes a control module for monitoring whether the test sample filled in the fixed volume cavity (40) has reached the designated position, and controlling the opening and closing and working status of the material taking mechanism (2) and the feeding mechanism (3) based on this; at the same time, the control of the power component (46) based on the detection value of the gravity sensor (41) to unload and seal the bottom of the fixed volume cavity (40), so as to realize online continuous monitoring of the fixed volume cavity. The material in the fixed volume cavity enters the material equalization cylinder (1) through the return unit to realize one material taking and return cycle until the recorded material weight value is within the allowable fluctuation range, and the detection ends.

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