A solid powder material mass flow measuring device

Abstract

The utility model discloses a solid state powder material mass flow measuring device belongs to powder flow measurement technical field. A kind of solid state powder material mass flow measuring device, including lower cone hopper, the upper end portion of the lower cone hopper is installed with the upper cone hopper with one end in the inside of the lower cone hopper, the upper end portion of the upper cone hopper is installed with top cover, the top cover is installed with material guiding pipe, the top cover is equipped with driving element, driving element with the top cover between being equipped with mounting, the one end of driving element in the lower cone hopper is installed with measuring disc, the feed end of the measuring disc is connected with the discharge end of the upper cone hopper;Through the driving element of reduction motor, torsion sensor and shaft coupling etc. composition, in combination with the structural design of measuring disc, the torsion required for driving measuring disc rotation can be accurately measured, and then the material mass flow is accurately calculated, reliable material quality information is provided for production process, and product quality stability is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of powder flow measurement technology, and in particular relates to a device for measuring the mass flow rate of solid powder materials. Background Technology

[0002] In industrial production processes involving the processing of solid powdered materials, such as feed production, the continuous transportation of raw materials and the continuous output of finished products are key links to ensure the efficient and stable operation of the production process. To ensure the smooth operation of the entire production process and the stability of product quality, it is crucial to accurately grasp the quality information of materials during the material transportation process.

[0003] The conventional solution is to use weighing to measure the mass of materials. However, weighing requires a large buffer silo to hold a certain amount of material in order to achieve stable and accurate weighing operations. But in many factories that have already been built, due to space constraints and the limitations of the original building structure, it is difficult to install an additional large buffer silo. Even if it is possible to install one through modification, the implementation cost will be too high, including equipment purchase costs, site modification costs, and production losses caused by shutdown for modification. Summary of the Invention

[0004] The purpose of this invention is to address the problems existing in the prior art by providing a device for measuring the mass flow rate of solid powder materials.

[0005] To achieve the above objectives, the utility model adopts the following technical solution: a solid powder material mass flow measurement device, comprising a lower conical hopper, an upper conical hopper with one end located inside the lower conical hopper installed at the upper end of the lower conical hopper, a top cover installed at the upper end of the upper conical hopper, a guide pipe installed on the top cover, a driving component provided on the top cover, an installation component provided between the driving component and the top cover, a measuring disk installed at one end of the driving component located inside the lower conical hopper, and the feed end of the measuring disk being connected to the discharge end of the upper conical hopper.

[0006] By adopting the above technical solution, the solid powder material mass flow measurement device realizes the material mass flow measurement by setting up a lower cone hopper, an upper cone hopper, a top cover, a guide pipe, a drive component, an installation component, and a measuring plate. The feed end of the measuring plate is connected to the discharge end of the upper cone hopper, providing a basic structure for the material mass flow measurement and facilitating subsequent measurement operations.

[0007] Optionally, a fixing plate is installed at the upper end of the lower cone bucket, and the surface of the fixing plate is provided with through holes for the lower cone bucket to be installed, and the surface of the fixing plate is provided with a plurality of support plates for supporting the upper cone bucket.

[0008] By adopting the above technical solution, a fixing plate is installed at the upper end of the lower cone hopper and a through hole is opened. A support plate is provided to support the upper cone hopper, which enhances the installation stability of the upper cone hopper, ensures the stability of the entire device structure, and facilitates the stable operation of the solid powder material measurement process.

[0009] Optionally, the top cover is provided with a plurality of bolt rods that pass through the upper cone and the lower cone, and fastening nuts are respectively installed on the plurality of bolt rods.

[0010] By adopting the above technical solution, the design of the bolt rod and fastening nut makes the connection between the top cover and the upper and lower cone buckets more secure, enhances the overall structural strength of the device, ensures the stability of the position of each component during material measurement, and provides portability for subsequent maintenance or replacement.

[0011] Optionally, the drive component includes a geared motor and a torque sensor connected to the geared motor. The torque sensor has couplings at both ends. The upper coupling is connected to the output end of the geared motor, and the other end of the lower coupling is equipped with a bearing housing connected to the top cover. The bearing housing contains a drive shaft connected to the lower coupling.

[0012] By adopting the above technical solution, the drive component uses a geared motor, a torque sensor, and a coupling. The geared motor provides power, the torque sensor measures the torque during the drive process, and the mass flow rate is measured by the relationship between torque and material mass. The coupling ensures stable power transmission, and the bearing housing and drive shaft provide support and transmission for the rotation of the measuring disc, thereby achieving accurate measurement of material mass flow rate.

[0013] Optionally, the mounting component includes a mounting bracket for mounting the geared motor, and the mounting bracket is provided with a support for mounting the torque sensor.

[0014] By adopting the above technical solution, the mounting bracket and support on the mounting component provide mounting positions for the geared motor and torque sensor, enabling the drive component to transmit power stably.

[0015] Optionally, the mounting bracket includes a U-shaped bracket, one end of which is provided with a fixing plate connected to the top cover, and the inner side of the U-shaped bracket is provided with a partition. The partition, the U-shaped bracket, and the fixing plate are respectively provided with through holes.

[0016] By adopting the above technical solution and the design of the mounting bracket, the geared motor, torque sensor and coupling can be installed, ensuring that the power of the drive components can be stably transmitted to the measuring plate.

[0017] Optionally, the measuring disc includes a cone-shaped base with a connecting channel. A base plate connected to the driving component is installed on the lower end face of the cone-shaped base. A connecting plate is provided on the upper surface of the base plate. Several blades are provided between the connecting plate and the base plate. A feed port is provided at the upper end of the connecting plate. The feed port is connected to the discharge end of the upper cone. A discharge channel is provided between adjacent blades.

[0018] By adopting the above technical solution, the measuring disc is equipped with a cone-shaped base, connecting channel, base plate, connecting plate, blades, inlet, and discharge channel. The material enters from the inlet and flows in the discharge channel between the blades. By measuring parameters such as the torque required to drive the measuring disc to rotate, the material mass flow rate can be accurately calculated, thus achieving effective measurement of material mass flow rate.

[0019] Optionally, a protective sleeve is provided between the cone-shaped bucket seat and the bearing seat, and the protective sleeve is sleeved on the outer periphery of the drive shaft.

[0020] By adopting the above technical solution, the design of the protective sleeve can prevent dust from entering the bearing sleeve and the cone seat.

[0021] Compared with the prior art, the beneficial effects of this utility model are: 1. Addressing the issue that traditional weighing methods are limited by factory space layout and building structure due to the need for large buffer silos, this device, by incorporating a lower and upper conical hopper, can be directly and easily installed between conveying pipelines. It eliminates the need for a buffer silo, allowing for direct material discharge. Simultaneously, the weighing device on the unit continuously performs weighing operations. This device, which weighs while discharging, significantly improves production efficiency, eliminates the intermediate buffer silo, and effectively solves the space limitation problem.

[0022] 2. Through the driving components consisting of a geared motor, torque sensor, and coupling, combined with the structural design of the measuring disc, the torque required to drive the measuring disc to rotate can be accurately measured, thereby accurately calculating the material mass flow rate, providing reliable material quality information for the production process, and ensuring stable product quality.

[0023] 3. This device can continuously measure the mass flow rate of materials, seamlessly integrate with the production process, and eliminate the need to interrupt production for weighing and other operations, thus ensuring the continuity of the production process, improving production efficiency, and helping enterprises achieve efficient and stable production goals.

[0024] 4. A protective sleeve is provided between the cone bucket seat and the bearing seat, which is fitted around the outer circumference of the drive shaft. This prevents dust from entering the bearing sleeve and the cone bucket seat, extending the service life of the device and reducing equipment failures and maintenance costs caused by dust ingress. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of the measuring device of this utility model; Figure 2 This is a schematic diagram of the cross-sectional structure of the measuring device of this utility model; Figure 3 This is a schematic diagram of the three-dimensional connection structure between the measuring disc and the protective sleeve of this utility model.

[0026] In the diagram: 1. Lower conical hopper; 11. Fixing plate; 12. Support plate; 2. Upper conical hopper; 3. Top cover; 31. Bolt rod; 32. Fastening nut; 4. Guide pipe; 5. Drive component; 51. Gear motor; 52. Torque sensor; 53. Coupling; 54. Bearing seat; 55. Drive shaft; 6. Mounting component; 61. Mounting bracket; 62. Support; 7. Measuring disc; 71. Conical hopper seat; 711. Protective sleeve; 72. Base plate; 73. Connecting plate; 74. Blade; 75. Discharge channel. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] In the description of this utility model, it should be noted that the terms "middle", "upper", "lower", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] like Figure 1As shown in Figure 3, the specific scheme of the embodiment is as follows: A solid powder material mass flow measurement device includes a lower cone hopper 1, which is the lower container of the entire device. It receives the material from the upper cone hopper 2 and finally discharges the measured material through the discharge hole opened at the lower end of the device, realizing the collection and output of the material. The cone-shaped structure of the lower cone hopper 1 helps the material to slide down smoothly and be discharged in a concentrated manner, reducing material residue and ensuring the continuity and accuracy of material conveying. An upper cone hopper 2 is installed at the upper end of the lower cone hopper 1, with one end located inside the lower cone hopper 1. The lower end of the lower cone hopper 1 is provided with a discharge hole. The upper cone hopper 2 mainly plays the role of guiding the material into the measuring plate 7. The discharge hole of the upper cone hopper 2 is connected to the feed end of the measuring plate 7 to ensure that the material can accurately enter the measuring plate 7 for mass flow measurement. The cone-shaped design of the upper cone hopper 2 allows the material to slide down naturally under the action of gravity and enter the measuring plate 7 evenly, providing a stable material flow for accurate measurement. A fixing plate 11 is installed at the upper end of the lower conical hopper 1. The surface of the fixing plate 11 has through holes for the installation of the lower conical hopper 1. The surface of the fixing plate 11 is provided with several support plates 12 that support the upper conical hopper 2. The support plates 12 are trapezoidal plates. The several support plates 12 are equidistantly distributed along the outer periphery of the edge of the fixing plate 11. The design of the fixing plate 11 and the several support plates 12 is used to fix and support the upper conical hopper 2, ensuring the stable installation of the upper conical hopper 2 and enhancing the installation stability of the upper conical hopper 2. This makes the entire device less prone to shaking or displacement during operation, ensuring the accuracy of material measurement. At the same time, the design of the support plates 12 can strengthen the upper part of the upper conical hopper 2 to avoid deformation due to impact.

[0030] The upper end of the upper conical hopper 2 is equipped with a top cover 3. The top cover 3 is provided with a plurality of bolt rods 31 that pass through the upper conical hopper 2 and the lower conical hopper 1. Each of the bolt rods 31 is equipped with a fastening nut 32. The design of the bolt rods 31 and the fastening nuts 32 allows the upper conical hopper 2 and the lower conical hopper 1 to form a whole, ensuring that the position of each component is stable during the material measurement process and will not loosen due to material impact or device vibration. At the same time, this connection method facilitates subsequent maintenance or replacement of components. A guide pipe 4 is installed on the top cover 3. The diameter of the port of the guide pipe 4 near the top cover 3 is larger than the diameter of the port of the other end. The variable diameter design of the guide pipe 4 can control the inflow speed and flow rate of the material, so that the material can enter the upper cone hopper 2 smoothly and avoid excessive material impact from affecting the measurement results.

[0031] The top cover 3 is provided with a driving component 5, which includes a geared motor 51 and a torque sensor 52 connected to the geared motor 51. The two ends of the torque sensor 52 are respectively provided with couplings 53. The upper coupling 53 is connected to the output end of the geared motor 51, and the other end of the lower coupling 53 is provided with a bearing seat 54 connected to the top cover 3. The bearing seat 54 includes a thrust bearing and a radial bearing. The bearing seat 54 is provided with a drive shaft 55 connected to the lower coupling 53. The geared motor 51 provides power for the rotation of the measuring disk 7, enabling it to rotate at a certain speed, thereby driving the material to flow within the measuring disk 7. By adjusting the speed of the geared motor 51, the flow rate of the material can be controlled to meet different measurement requirements. Simultaneously, the geared motor 51 has a stable output torque, ensuring the smooth rotation of the measuring disk 7. The torque sensor 52 is used to measure the torque required to drive the measuring disk 7. Since there is a certain relationship between the mass of the material and the torque required to drive the measuring disk 7, the mass flow rate of the material can be indirectly calculated by measuring the torque, thus realizing the measurement of the material mass flow rate. The torque sensor 52 has… With high precision and sensitivity, it can accurately capture changes in torque, ensuring the accuracy of measurement results. The coupling 53 plays the role of transmitting power and buffering and damping, ensuring that power is stably transmitted from the geared motor 51 to the drive shaft 55. At the same time, it can reduce the impact of motor vibration or speed changes on the rotation of the measuring disk 7, improving the stability of measurement. The bearing housing 54 provides support and rotation space for the drive shaft 55, ensuring that the drive shaft 55 can rotate smoothly, reducing friction and wear of the drive shaft 55, and extending the service life of the drive shaft 55. At the same time, the sealing design of the bearing housing 54 can prevent dust from entering and ensure the normal operation of internal parts.

[0032] A mounting component 6 is provided between the driving component 5 and the top cover 3. The mounting component 6 includes a mounting bracket 61 for mounting the reduction motor 51. The mounting bracket 61 includes a U-shaped frame. One end of the U-shaped frame is provided with a fixing plate 11 connected to the top cover 3. A partition is provided on the inner side of the U-shaped frame. Through holes are provided on the partition, the U-shaped frame and the fixing plate 11. The design of the mounting bracket 61 ensures that the reduction motor 51 can be firmly mounted on the top cover 3, so that the power of the driving component 5 can be stably transmitted to the measuring plate 7. The mounting bracket 61 is provided with a support 62 for mounting the torque sensor 52. The design of the support 62 ensures that the torque sensor 52 is fixed in position during the measurement process, which can accurately measure the torque and improve the accuracy and reliability of the measurement.

[0033] The driving component 5 is equipped with a measuring disc 7 at one end inside the lower conical hopper 1. The measuring disc 7 includes a conical hopper seat 71, and a protective sleeve 711 is provided between the conical hopper seat 71 and the bearing seat 54. The protective sleeve 711 prevents material dust from entering the bearing seat 54 and the interior of the conical hopper seat 71, reducing the wear and corrosion of the drive shaft 55, bearings, and other parts by dust, extending the service life of the device, and ensuring the accuracy of the measurement. The protective sleeve 711 is fitted around the outer periphery of the drive shaft 55, and the conical hopper seat 71 has openings... A connecting channel is provided, which is connected to the protective sleeve 711. A base plate 72 connected to the drive shaft 55 is installed on the lower end face of the cone bucket seat 71. A connecting plate 73 is provided on the upper surface of the base plate 72. Several blades 74 are provided between the connecting plate 73 and the base plate 72. A feed port is opened at the upper end of the connecting plate 73. The feed port is connected to the discharge end of the upper cone. A discharge channel 75 is provided between adjacent blades 74. The feed end of the measuring plate 7 is connected to the discharge end of the upper cone bucket 2. The measuring disc 7 is precisely connected to the discharge end of the upper cone hopper 2 through the feed port at the upper end of the connecting plate 73, providing a clear entry channel for the solid powdery material flowing down from the upper cone hopper 2. This allows the material to enter the measuring disc 7 smoothly and orderly, avoiding scattering or blockage during the entry process and ensuring the continuity of material conveying. The measuring disc 7 is connected to the drive component 5 and can rotate at a certain speed under the action of the drive component 5. Since the material flows in the discharge channel 75, its mass will have a certain impact on the rotation of the measuring disc 7. By measuring parameters such as the torque required to drive the measuring disc 7 to rotate, combined with relevant physical principles and algorithms, the mass flow rate of the material can be indirectly calculated.

[0034] The measurement steps in the above embodiment are as follows: Start the geared motor 51, and the geared motor 51 starts to run. Through the coupling 53, the power is stably transmitted to the drive shaft 55. The drive shaft 55 drives the measuring disk 7 to start rotating at a preset speed. At the same time, the torque sensor 52 starts to work and monitors the torque change during the rotation of the drive measuring disk 7 in real time. The powder to be tested enters the upper cone hopper 2 through the feed pipe 4. After entering the upper cone hopper 2, the powder to be tested flows downward by its own weight and flows into the feed inlet of the measuring plate 7. The powder enters the measuring disk 7 through the feed port opened at the upper end of the connecting plate 73 of the measuring disk 7; The powder entering the measuring disk 7 is captured by the blades 74 on the measuring disk 7. The powder is accelerated by centrifugal force and moves towards the outer edge of the measuring disk 7. It leaves the measuring disk 7 along the discharge channel 75 between the blades 74. During operation, the torque sensor 52 measures the torque driving the measuring disk 7 to rotate in real time. Because the powder is restricted in its movement within the measuring disk 7 by the blades 74, the powder flow along the blades 74 generates Coriolis acceleration and Coriolis force. This force creates a torque on the rotation center of the measuring disk 7, and its direction is opposite to the rotation direction of the measuring disk 7. The torque is provided by the geared motor 51 that drives the measuring disk 7. The mass flow rate of the measuring disk 7 can be calculated, i.e., M = m × ω × R2 (M is the torque generated by the Coriolis force on the rotation center of the measuring disk 7, m is the instantaneous mass flow rate through the measuring disk 7; ω is the rotational angular velocity of the measuring disk 7; R is the radius of the measuring disk 7). After measurement, the material continues to flow along the discharge channel 75 and eventually enters the next production equipment through the discharge hole at the lower end of the lower cone hopper 1.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for measuring the mass flow rate of solid powdery materials, characterized in that, The device includes a lower conical hopper, an upper conical hopper with one end located inside the lower conical hopper is installed at the upper end of the lower conical hopper, a top cover is installed at the upper end of the upper conical hopper, a guide pipe is installed on the top cover, a driving component is provided on the top cover, and an installation component is provided between the driving component and the top cover. A measuring plate is installed at one end of the driving component located inside the lower conical hopper, and the feed end of the measuring plate is connected to the discharge end of the upper conical hopper.

2. The solid powder material mass flow measurement device according to claim 1, characterized in that: A fixing plate is installed at the upper end of the lower cone bucket. The surface of the fixing plate has through holes for the upper cone bucket to be installed. The surface of the fixing plate is provided with several support plates that support the upper cone bucket.

3. The solid powder material mass flow measurement device according to claim 1, characterized in that: The top cover is provided with several bolt rods that pass through the upper cone and the lower cone, and fastening nuts are installed on the bolt rods respectively.

4. The solid powder material mass flow measurement device according to claim 1, characterized in that: The drive unit includes a geared motor and a torque sensor connected to the geared motor. The torque sensor has couplings at both ends. The upper coupling is connected to the output end of the geared motor, and the other end of the lower coupling is equipped with a bearing housing connected to the top cover. The bearing housing contains a drive shaft connected to the lower coupling.

5. The solid powder material mass flow measurement device according to claim 4, characterized in that: The mounting component includes a mounting bracket for mounting the geared motor, and the mounting bracket is provided with a support for mounting the torque sensor.

6. The solid powder material mass flow measurement device according to claim 5, characterized in that: The mounting bracket includes a U-shaped frame, one end of which is provided with a fixing plate connected to the top cover, and a partition is provided on the inner side of the U-shaped frame. The partition, the U-shaped frame and the fixing plate are respectively provided with through holes.

7. The solid powder material mass flow measurement device according to claim 4, characterized in that: The measuring disc includes a cone-shaped base with a connecting channel. A base plate connected to the drive shaft is installed on the lower end face of the cone-shaped base. A connecting plate is provided on the upper surface of the base plate. Several blades are provided between the connecting plate and the base plate. A feed port is provided at the upper end of the connecting plate. The feed port is connected to the discharge end of the upper cone. A discharge channel is provided between adjacent blades.

8. The solid powder material mass flow measurement device according to claim 7, characterized in that: A protective sleeve is provided between the cone-shaped bucket seat and the bearing seat, and the protective sleeve is fitted around the outer periphery of the drive shaft.

Images