A weighing structure and weighing metering system of a vertical intensive mixer

Abstract

The present invention discloses a weighing structure and a weighing metering system for a vertical intensive mixer. The weighing structure includes two bases, two groups of weighing components and a limit component. The two groups of weighing components are respectively installed in the direction of one of the diagonal lines formed by the bases on both sides, and the two groups of limit components are installed in the direction of the other diagonal line formed by the bases on both sides. The weighing component includes a gravity sensor, and the limit component includes a first support. A connecting protrusion is provided on the base at a position corresponding to the first support. The first support is fixedly connected to the connecting protrusion, and the other side of the first support is fixedly connected to the body of the vertical intensive mixer. The present invention adopts a method of fixing two weighing points and two supporting points, so that the whole machine can be fixedly limited in the horizontal direction. The other two gravity sensors only bear the gravity of the vertical intensive mixer, and are not affected by the additional load of horizontal vibration.

Description

Technical Field

[0001] The invention relates to the technical field of mixing equipment, and in particular to a weighing structure and a weighing metering system of a vertical strong mixer. Background Art

[0002] In the pelletizing production, a small amount of additives is added to finely ground iron ore concentrate or other iron-containing powder, mixed in a vertical high-power mixer, and then rolled in a pelletizing machine to form pellets. After drying and roasting, they are consolidated into spherical iron-containing raw materials with certain strength and metallurgical properties to form pelletized ore.

[0003] The pelletizing process has extremely high requirements on raw material mixing equipment. On the one hand, it requires large output, and on the other hand, it requires high mixing. Therefore, the key to producing high-quality pellets is to ensure that the pelletizing raw material concentrate powder and bentonite have a good mixing effect. The vertical high-power mixer is one of the key equipment that affects the material mixing effect on the pelletizing production line.

[0004] The existing vertical high-power mixer is provided with a weighing structure, and the weighing mechanism is supported by four gravity sensors. The four gravity sensor supports are symmetrically arranged on the four bases of the vertical high-power mixer, and then connected to the body of the vertical high-power mixer through the support. In the process of mixing materials by the vertical high-power mixer, the gravity of the vertical high-power mixer is evenly distributed to the four gravity sensors, and the four gravity sensors then transmit the measured data to the external device. The external device realizes the weighing of materials in the equipment through PLC data integration. The gravity sensor in this weighing structure of the vertical high-power mixer mainly bears the gravity of the vertical high-power mixer. When the vertical high-power mixer is working, its rotor rotates at a high speed to stir and mix the materials. The mixing barrel vibrates greatly, causing the gravity sensor to be subjected to the external force of horizontal vibration, which will cause the gravity sensor weighing data to drift and affect the weighing accuracy. In addition, the gravity sensor is in a horizontal vibration state for a long time, which can easily cause the gravity sensor strain gauge to be easily damaged, causing accidents. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is: how to provide a weighing structure for a vertical high-power mixer that can prevent the gravity sensor from being affected by horizontal vibration external forces, thereby ensuring the weighing accuracy of the gravity sensor and avoiding damage to the gravity sensor strain gauge.

[0006] In addition, the present invention also provides a weighing and metering system for a vertical intensive mixer, which can ensure accurate weighing of the vertical intensive mixer and simultaneously prevent the gravity sensor from being affected by horizontal vibration external forces during weighing.

[0007] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0008] A weighing structure for a vertical intensive mixer, the weighing structure comprising bases symmetrically distributed on both sides of the vertical intensive mixer in an axial direction, characterized in that the weighing structure further comprises two groups of weighing components and two groups of limiting components, the two groups of weighing components and the two groups of limiting components are installed on four supporting points of the base and form a rectangular distribution, wherein the two groups of weighing components are respectively installed in the direction of one of the diagonals formed by the bases on both sides, and the two groups of limiting components are installed in the direction of the other diagonal formed by the bases on both sides, the weighing component comprises a gravity sensor for weighing the vertical intensive mixer, the limiting component comprises a first support, a connecting protrusion is provided on the base at a position corresponding to the first support, one side of the first support is fixedly connected to the connecting protrusion, the side of the first support away from the connecting protrusion is fixedly connected to the body of the vertical intensive mixer, and the weighing component and the limiting component have the same supporting height for the base.

[0009] The working principle of the present invention is: when the vertical high-power mixer of the present invention is working, the equipment weight value measured by the gravity sensor is first reset to zero, and then the gravity sensors in the two groups of weighing components located on one of the diagonals formed by the two side bases measure the weight of the materials in the vertical high-power mixer, and the two ends of the first support in the two groups of limiting components on the other diagonal formed by the two side bases are fixedly connected to the base and the body of the vertical high-power mixer respectively, and the fixed connection structure is used to achieve the purpose of limiting the horizontal vibration generated during the working process of the vertical high-power mixer. When calculating the weight of the materials in the vertical high-power mixer, the data of the gravity sensors in the two groups of weighing components are multiplied by the pre-calibrated conversion ratio through the PLC operation set to obtain the actual weight of the materials in the vertical high-power mixer. After data comparison, the weight of the material in the vertical intensive mixer obtained by multiplying the sum of the data of the gravity sensors in the two groups of weighing components by the pre-calibrated conversion ratio is basically consistent with the sum of the data of the four gravity sensors in the prior art. At the same time, in the present invention, the two groups of limit assemblies and the two groups of weighing assemblies are respectively installed on the two diagonals formed by the bases on both sides. Considering that the material is in a constantly changing state during the mixing process, the limit assemblies and the weighing assemblies are respectively installed on the two diagonals formed by the bases on both sides, so that the material can be weighed more accurately. Therefore, the present invention realizes the accurate weighing of the material in the vertical intensive mixer, and also limits the horizontal vibration of the vertical intensive mixer by the limit assemblies, which greatly improves the accuracy and service life of the gravity sensor data measurement.

[0010] The beneficial effects of the present invention are as follows: the present invention adopts a method of fixing two weighing points and two supporting points, so that the whole equipment can be fixed and limited in the horizontal direction, and the other two gravity sensors only bear the gravity of the vertical high-power mixer, without the influence of the horizontal vibration additional load. The actual weighing data of the equipment is obtained by multiplying the data measured by the gravity sensor by the pre-calibrated conversion ratio, and the weighing is accurate.

[0011] Preferably, the first support is fixedly connected to the connecting protrusion at the corresponding position by a pin.

[0012] Thus, the pin is a type of commonly used standardized fastener, and the use of the pin to fix the first support and the connecting protrusion can effectively ensure the reliability of the connection between the two.

[0013] Preferably, a position where the first support is pin-connected to the connecting protrusion is also provided with a limiting structure for preventing the pin from axially moving.

[0014] In this way, since the vertical high-power mixer has a high rotation speed and large vibration during operation, the position where the first support and the connecting protrusion are pin-connected can be further axially limited by using a limiting structure, which can further ensure the reliability and stability of the limiting effect of the limiting component on the vertical high-power mixer.

[0015] Preferably, the limiting structure is a fixing screw baffle.

[0016] Preferably, the weighing assembly also includes a second support and a third support located above the base, the gravity sensor is fixedly mounted on a side of the second support facing the corresponding position of the base, one side of the third support in the horizontal direction is fixedly connected to the second support, and the side of the third support away from its connection to the second support is fixedly connected to the body of the vertical intensive mixer.

[0017] In this way, the gravity sensor is installed on the second support, and the second support is fixedly connected to the third support, and the third support is fixedly connected to the body of the vertical intensive mixer, so that the weight of the vertical intensive mixer can be effectively transferred to the gravity sensor, and the gravity sensor can measure the weight of the vertical intensive mixer.

[0018] Preferably, the first support is fixedly connected to the body of the vertical intensive mixer by a first bolt, the gravity sensor is fixedly connected to the second support by a second bolt, and the second support is fixedly connected to the third support by a third bolt.

[0019] In this way, bolts are a standard fastener. Using bolts to connect parts not only ensures reliable and stable connections, but also has low cost.

[0020] A weighing and metering system for a vertical intensive mixer comprises a weighing and metering instrument, a metering conversion device, and a weighing structure of the vertical intensive mixer; data of gravity sensors in two groups of weighing components of the weighing structure are output to the metering conversion device, and the metering conversion device converts the weight measurement data output values ​​of the gravity sensors in the two groups of the weighing components according to a pre-calibrated conversion ratio K, so that the converted output value is equivalent to the total value of the weight measurement data of the vertical intensive mixer completely measured by the gravity sensors, and is output to the weighing and metering instrument for weighing and metering.

[0021] Preferably, the value of the pre-calibrated conversion ratio K is determined according to the following method:

[0022] Step 1) Using a vertical intensive mixer A supported by four gravity sensors before transformation, first ensure that the materials loaded in the vertical intensive mixer A are emptied, and clear the equipment quality data of its four gravity sensors;

[0023] Step 2) Add materials of known specified weight W, and record the total value Q of the weight data measured by four gravity sensors in the vertical intensive mixer A;

[0024] Step 3) using the modified vertical intensive mixer B adopting the weighing structure to ensure that the materials loaded in the vertical intensive mixer B are emptied, and the equipment quality data of the two gravity sensors thereof are reset to zero;

[0025] Step 4) Similarly, add materials of known specified weight W, and record the total value P of the weight data measured by the two gravity sensors in the vertical intensive mixer B;

[0026] Step 5) Calculate the pre-calibrated conversion ratio K=Q / P.

[0027] The method of the present invention can obtain the mass of the material inside the vertical intensive mixer by multiplying the sum of the data of the two gravity sensors in the weighing component by the pre-calibrated conversion ratio K. The data obtained by this method is basically consistent with the sum of the data of the four gravity sensors in the prior art. Therefore, the present invention realizes the accurate weighing of the material in the vertical intensive mixer, and also limits the horizontal vibration of the vertical intensive mixer through the limit component, which greatly improves the accuracy and service life of the gravity sensor data measurement; at the same time, the present invention ensures the accuracy of the material weight measurement through the conversion of the gravity sensor weight data, and also makes it unnecessary to modify the program of the subsequent weighing meter.

[0028] Preferably, the value of the pre-calibrated conversion ratio K is determined according to the following method:

[0029] Step a) using a vertical intensive mixer A supported by four gravity sensors before transformation, first ensuring that the materials loaded in the vertical intensive mixer A are emptied, and clearing the equipment quality data of the four gravity sensors;

[0030] Step b) adding materials of known specified weights W1, W2, ..., Wn in batches, and recording the total values ​​of the weight data Q1, Q2, ..., Qn measured by the four gravity sensors in the vertical intensive mixer A respectively;

[0031] Step c) using the modified vertical intensive mixer B adopting the weighing structure to ensure that the materials loaded in the vertical intensive mixer B are emptied and the equipment quality data of the two gravity sensors thereof are reset to zero;

[0032] Step d) Similarly, materials of known specified weights W1, W2, ..., Wn are added in batches, and the total values ​​P1, P2, ..., Pn of the weight data measured by the two gravity sensors in the vertical intensive mixer B are recorded respectively;

[0033] Step e) Calculate the pre-calibrated conversion ratio K = (Q1 / P1+ Q2 / P2+…+ Qn / Pn) / n.

[0034] In this way, since the position of the material in the vertical intensive mixer is constantly changing during the mixing and stirring process of the vertical intensive mixer, the gravity distribution of the material in the vertical intensive mixer during the mixing process is uneven and the distribution state is changing at any time. Therefore, the above-mentioned pre-calibration calculation method is adopted, and the accuracy of the pre-calibrated conversion ratio K obtained is further improved by taking the average value of multiple material weight measurements. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a structural schematic diagram of the vertical intensive mixer of the present invention;

[0036] Figure 2 It is a structural schematic diagram of the weighing structure of the neutral type strong mixer of the present invention;

[0037] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0038] Figure 4 for Figure 2 Top view of the .

[0039] Explanation of the reference numerals: vertical high-power mixer 1, weighing structure 2, base 3, weighing assembly 4, second support 41, third support 42, third bolt 43, second bolt 44, gravity sensor 45, limit assembly 5, first support 51, pin 52, fixing screw baffle 53, connecting protrusion 54. DETAILED DESCRIPTION

[0040] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0041] As attached Figure 1 To the attached Figure 4 As shown, a weighing structure of a vertical intensive mixer, the weighing structure 2 includes a base 3 symmetrically distributed on both sides of the vertical intensive mixer 1 in an axial direction, the weighing structure 2 also includes two groups of weighing components 4 and two groups of limiting components 5, the two groups of weighing components 4 and the two groups of limiting components 5 are installed on four supporting points of the base 3 and form a rectangular distribution, wherein the two groups of weighing components 4 are respectively installed in the direction of one of the diagonals formed by the bases 3 on both sides, and the two groups of limiting components 5 are installed in the direction of the other diagonal formed by the bases 3 on both sides, the weighing component 4 includes a gravity sensor 45 for weighing the vertical intensive mixer 1, the limiting component 5 includes a first support 51, a connecting protrusion 54 is provided on the base 3 at a position corresponding to the first support 51, one side of the first support 51 is fixedly connected to the connecting protrusion 54, the side of the first support 51 away from the connecting protrusion 54 is fixedly connected to the body of the vertical intensive mixer 1, and the weighing component 4 and the limiting component 5 have the same supporting height for the base 3.

[0042] The working principle of the present invention is: when the vertical high-power mixer of the present invention is working, the equipment weight value measured by the gravity sensor is first reset to zero, and then the gravity sensors in the two groups of weighing components located on one of the diagonals formed by the two side bases measure the weight of the materials in the vertical high-power mixer, and the two ends of the first support in the two groups of limiting components on the other diagonal formed by the two side bases are fixedly connected to the base and the body of the vertical high-power mixer respectively, and the fixed connection structure is used to achieve the purpose of limiting the horizontal vibration generated during the working process of the vertical high-power mixer. When calculating the weight of the materials in the vertical high-power mixer, the data of the gravity sensors in the two groups of weighing components are multiplied by the pre-calibrated conversion ratio through the PLC operation set to obtain the actual weight of the materials in the vertical high-power mixer. After data comparison, the weight of the material in the vertical intensive mixer obtained by multiplying the sum of the data of the gravity sensors in the two groups of weighing components by the pre-calibrated conversion ratio is basically consistent with the sum of the data of the four gravity sensors in the prior art. At the same time, in the present invention, the two groups of limit assemblies and the two groups of weighing assemblies are respectively installed on the two diagonals formed by the bases on both sides. Considering that the material is in a constantly changing state during the mixing process, the limit assemblies and the weighing assemblies are respectively installed on the two diagonals formed by the bases on both sides, so that the material can be weighed more accurately. Therefore, the present invention realizes the accurate weighing of the material in the vertical intensive mixer, and also limits the horizontal vibration of the vertical intensive mixer by the limit assemblies, which greatly improves the accuracy and service life of the gravity sensor data measurement.

[0043] The beneficial effects of the present invention are as follows: the present invention adopts a method of fixing two weighing points and two supporting points, so that the whole equipment can be fixed in the horizontal direction. The other two gravity sensors 45 only bear the gravity of the vertical intensive mixer 1, and there is no influence of the additional load of horizontal vibration. The actual weighing data of the equipment is obtained by multiplying the data measured by the gravity sensor 45 by the pre-calibrated conversion ratio, and the weighing is accurate.

[0044] In this embodiment, the first support 51 is fixedly connected to the connecting protrusion 54 at the corresponding position by a pin shaft 52 .

[0045] Thus, the pin 52 is a commonly used standardized fastener, and the use of the pin 52 to fix the first support 51 and the connecting protrusion 54 can effectively ensure the reliability of the connection between the two.

[0046] In this embodiment, a position where the first support 51 and the connecting protrusion 54 are connected to the pin shaft 52 is also provided with a limiting structure to prevent the pin shaft 52 from axial movement.

[0047] In this way, since the vertical intensive mixer 1 has a high rotation speed and large vibration during operation, the position where the first support 51 and the connecting protrusion 54 are connected by the pin 52 is further limited axially by adopting a limiting structure, which can further ensure the reliability and stability of the limiting effect of the limiting component 5 on the vertical intensive mixer 1.

[0048] In this embodiment, the limiting structure is a fixing screw baffle 53 .

[0049] In this embodiment, the weighing assembly 4 also includes a second support 41 and a third support 42 located above the base 3. The gravity sensor 45 is fixedly installed on the side of the second support 41 facing the corresponding position of the base 3. One side of the third support 42 in the horizontal direction is fixedly connected to the second support 41, and the side of the third support 42 away from the side connected to the second support 41 is fixedly connected to the body of the vertical intensive mixer 1.

[0050] In this way, the gravity sensor 45 is installed on the second support 41, and the second support 41 is fixedly connected to the third support 42, and the third support 42 is fixedly connected to the body of the vertical intensive mixer 1, so that the weight of the vertical intensive mixer 1 can be effectively transferred to the gravity sensor 45, and the gravity sensor 45 measures the weight of the vertical intensive mixer 1.

[0051] In this embodiment, the first support 51 is fixedly connected to the body of the vertical intensive mixer 1 by a first bolt, the gravity sensor 45 is fixedly connected to the second support 41 by a second bolt 44, and the second support 41 and the third support 42 are fixedly connected by a third bolt 43.

[0052] In this way, bolts are a standard fastener. Using bolts to connect various parts not only ensures reliable and stable connection but also has low cost.

[0053] A weighing and metering system for a vertical intensive mixer comprises a weighing and metering instrument, a metering conversion device, and a weighing structure of the vertical intensive mixer; data of gravity sensors in two groups of weighing components of the weighing structure are output to the metering conversion device, and the metering conversion device converts the weight measurement data output values ​​of the gravity sensors in the two groups of the weighing components according to a pre-calibrated conversion ratio K, so that the converted output value is equivalent to the total value of the weight measurement data of the vertical intensive mixer completely measured by the gravity sensors, and is output to the weighing and metering instrument for weighing and metering.

[0054] In this embodiment, the value of the pre-calibrated conversion ratio K is determined according to the following method:

[0055] Step 1) Using a vertical intensive mixer A supported by four gravity sensors before transformation, first ensure that the materials loaded in the vertical intensive mixer A are emptied, and clear the equipment quality data of its four gravity sensors;

[0056] Step 2) Add materials of known specified weight W, and record the total value Q of the weight data measured by four gravity sensors in the vertical intensive mixer A;

[0057] Step 3) using the modified vertical intensive mixer B adopting the weighing structure to ensure that the materials loaded in the vertical intensive mixer B are emptied, and the equipment quality data of the two gravity sensors thereof are reset to zero;

[0058] Step 4) Similarly, add materials of known specified weight W, and record the total value P of the weight data measured by the two gravity sensors in the vertical intensive mixer B;

[0059] Step 5) Calculate the pre-calibrated conversion ratio K=Q / P.

[0060] The method of the present invention can obtain the mass of the material inside the vertical intensive mixer by multiplying the sum of the data of the two gravity sensors in the weighing component by the pre-calibrated conversion ratio K. The data obtained by this method is basically consistent with the sum of the data of the four gravity sensors in the prior art. Therefore, the present invention realizes the accurate weighing of the material in the vertical intensive mixer, and also limits the horizontal vibration of the vertical intensive mixer through the limit component, which greatly improves the accuracy and service life of the gravity sensor data measurement; at the same time, the present invention ensures the accuracy of the material weight measurement through the conversion of the gravity sensor weight data, and also makes it unnecessary to modify the program of the subsequent weighing meter.

[0061] In this embodiment, the value of the pre-calibrated conversion ratio K can also be determined according to the following method:

[0062] Step a) using a vertical intensive mixer A supported by four gravity sensors before transformation, first ensuring that the materials loaded in the vertical intensive mixer A are emptied, and clearing the equipment quality data of the four gravity sensors;

[0063] Step b) adding materials of known specified weights W1, W2, ..., Wn in batches, and recording the total values ​​of the weight data Q1, Q2, ..., Qn measured by the four gravity sensors in the vertical intensive mixer A respectively;

[0064] Step c) using the modified vertical intensive mixer B adopting the weighing structure to ensure that the materials loaded in the vertical intensive mixer B are emptied and the equipment quality data of the two gravity sensors thereof are reset to zero;

[0065] Step d) Similarly, materials of known specified weights W1, W2, ..., Wn are added in batches, and the total values ​​P1, P2, ..., Pn of the weight data measured by the two gravity sensors in the vertical intensive mixer B are recorded respectively;

[0066] Step e) Calculate the pre-calibrated conversion ratio K = (Q1 / P1+ Q2 / P2+…+ Qn / Pn) / n.

[0067] Since the position of the material in the vertical intensive mixer is constantly changing during the mixing and stirring process of the vertical intensive mixer, the gravity distribution of the material in the vertical intensive mixer is uneven and the distribution state is changing at any time. Therefore, the above-mentioned pre-calibration calculation method is adopted, and the accuracy of the pre-calibrated conversion ratio K is further improved by taking the average value of multiple material weight measurements.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit the technical solution. Those skilled in the art should understand that those modifications or equivalent substitutions of the technical solution of the present invention that do not depart from the purpose and scope of the technical solution should be included in the scope of the claims of the present invention.

Claims

1. A weighing and metering system for a vertical intensive mixer, characterized in that: It includes a weighing meter, a metering conversion device, and a weighing structure; the weighing structure includes bases symmetrically distributed on both sides of the vertical intensive mixer, the weighing structure also includes two groups of weighing components and two groups of limiting components, the two groups of weighing components and the two groups of limiting components are installed on the four supporting points of the base and form a rectangular distribution, wherein the two groups of weighing components are respectively installed in the direction of one diagonal line of the rectangle formed by the four supporting points of the base on both sides, and the two groups of limiting components are installed in the direction of another diagonal line of the rectangle formed by the four supporting points of the base on both sides, the weighing component includes a gravity sensor for weighing the vertical intensive mixer, the limiting component includes a first support, a connecting protrusion is provided on the base at a position corresponding to the first support, one side of the first support is fixedly connected to the connecting protrusion, the side of the first support away from the connecting protrusion is fixedly connected to the body of the vertical intensive mixer, and the weighing component and the limiting component have the same support height for the base; The data of the gravity sensors in the two groups of weighing components of the weighing structure are output to the metering conversion device, which converts the weight measurement data output values ​​of the gravity sensors in the two groups of the weighing components according to the pre-calibrated conversion ratio K, so that the converted output value is equivalent to the total value of the weight measurement data of the vertical intensive mixer measured by gravity through four gravity sensors, and outputs it to the weighing meter for weighing and measurement.

2. The weighing and metering system of the vertical intensive mixer according to claim 1, characterized in that: The first support is fixedly connected to the connecting protrusion at the corresponding position by a pin shaft.

3. The weighing and metering system of the vertical intensive mixer according to claim 2, characterized in that: A position where the first support and the connecting protrusion are pin-connected is also provided with a limiting structure to prevent the pin from axially moving.

4. The weighing and metering system of the vertical intensive mixer according to claim 3, characterized in that: The limiting structure is a fixing screw baffle.

5. The weighing and metering system of the vertical intensive mixer according to claim 1, characterized in that: The weighing assembly also includes a second support and a third support located above the base, the gravity sensor is fixedly mounted on a side of the second support facing the corresponding position of the base, one side of the third support in the horizontal direction is fixedly connected to the second support, and the side of the third support away from its connection with the second support is fixedly connected to the body of the vertical intensive mixer.

6. The weighing and metering system of the vertical intensive mixer according to claim 5, characterized in that: The first support is fixedly connected to the body of the vertical intensive mixer via a first bolt, the gravity sensor is fixedly connected to the second support via a second bolt, and the second support is fixedly connected to the third support via a third bolt.

7. The weighing and metering system of the vertical intensive mixer according to claim 1, characterized in that: The value of the pre-calibrated conversion ratio K is determined according to the following method: Step 1) Using a vertical intensive mixer A supported by four gravity sensors before transformation, first ensure that the materials loaded in the vertical intensive mixer A are emptied, and clear the equipment quality data of its four gravity sensors; Step 2) Add materials of known specified weight W, and record the total value Q of the weight data measured by four gravity sensors in the vertical intensive mixer A; Step 3) using the modified vertical intensive mixer B adopting the weighing structure to ensure that the materials loaded in the vertical intensive mixer B are emptied, and the equipment quality data of the two gravity sensors thereof are reset to zero; Step 4) Similarly, add materials of known specified weight W, and record the total value P of the weight data measured by the two gravity sensors in the vertical intensive mixer B; Step 5) Calculate the pre-calibrated conversion ratio K=Q / P.

8. The weighing and metering system of the vertical intensive mixer according to claim 1, characterized in that: The value of the pre-calibrated conversion ratio K is determined according to the following method: Step a) using a vertical intensive mixer A supported by four gravity sensors before transformation, first ensuring that the materials loaded in the vertical intensive mixer A are emptied, and clearing the equipment quality data of the four gravity sensors; Step b) adding materials of known specified weights W1, W2, ..., Wn in batches, and recording the total values ​​of the weight data Q1, Q2, ..., Qn measured by the four gravity sensors in the vertical intensive mixer A respectively; Step c) using the modified vertical intensive mixer B adopting the weighing structure to ensure that the materials loaded in the vertical intensive mixer B are emptied and the equipment quality data of the two gravity sensors thereof are reset to zero; Step d) Similarly, materials of known specified weights W1, W2, ..., Wn are added in batches, and the total values ​​of the weight data P1, P2, ..., Pn measured by the two gravity sensors in the vertical intensive mixer B are recorded respectively; Step e) Calculate the pre-calibrated conversion ratio K = (Q1 / P1+ Q2 / P2+…+ Qn / Pn) / n.

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