CN218600662U - Dynamic adjusting device for weighing and metering bulk material - Google Patents

Abstract

The utility model discloses a dynamic adjustment device for bulk cargo weighing measurement, a dynamic adjustment device for bulk cargo weighing measurement includes: the storage blowing subassembly, weigh subassembly and dynamic adjustment subassembly, the storage blowing subassembly with weigh the subassembly and link to each other in order to weighing the subassembly in the transported substance material, it is equipped with gets material mouth and feed supplement mouth to weigh the subassembly, the extending direction of getting the material mouth is parallel with the extending direction of feed supplement mouth, the dynamic adjustment subassembly is including getting material spare and feed supplement spare, it runs through and gets the material mouth to get the material spare, it is used for taking out the material in weighing the subassembly through getting the material mouth to get the material spare, the feed supplement spare links to each other with weighing the subassembly, the feed supplement spare is used for supplementing the material in weighing the subassembly through the feed supplement mouth. After the materials are conveyed into the weighing assembly through the material storage and discharge assembly, the materials are timely adjusted according to the metering data of the weighing assembly through the dynamic adjusting assembly, so that the allowable range value of carriage load is met, and the accuracy of bulk material weighing and metering is improved.

Description

Dynamic adjusting device for weighing and metering bulk material

Technical Field

The utility model relates to a loading technical field that weighs especially relates to a dynamic adjustment device that is used for bulk cargo weighing measurement.

Background

At present, large-capacity hopper weighers are widely applied to weighing and metering of bulk material loading of coal, ore, grain, sulfur and the like, and the large-capacity hopper weighers are mainly used as weighing and metering weighers in railway quick quantitative and highway automobile quick quantitative loading systems. The hopper mainly comprises a railway scale and a road scale, has the characteristic of large weighing and metering range, is matched with a rapid weighing and metering process of a loading system, and is suitable for the loading capacity of a train carriage and an automobile carriage.

The weighing precision requirement of the large-capacity hopper scale for railway and highway loading is very high, and the precision standard of trade settlement is usually within +/-0.5 per thousand. However, the weighing and metering control of the large-capacity hopper scale in the related art is open-loop control, and the large-opening batching gate (with an opening size larger than 1mx1 m) is adopted for high-speed bin allocation, so that a large amount of bulk materials still fall down instantly under the control instruction of closing the tail-end material-cutting due to too large opening size, and the final weighing value is often caused to exceed the allowable range. Therefore, in terms of a control strategy, a measure of closing the gate in advance is adopted to reduce the overload, but the problem that the deficiency ton exceeds the allowable value is caused due to the fact that the advanced time difference value is manually input, and the economic benefit of a user is affected.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent.

Therefore, the embodiment of the utility model provides a dynamic adjustment device for bulk cargo weighing and metering, this measurement system has improved bulk cargo weighing and metering's accuracy.

The utility model discloses a dynamic adjustment device for bulk cargo weighing measurement includes: the material storage blowing subassembly, weigh subassembly and dynamic adjustment subassembly, the material storage blowing subassembly with weigh the subassembly link to each other in order to weigh the interior transported substance material of subassembly, it is equipped with and gets material mouth and feed supplement mouth to weigh the subassembly, get the extending direction of material mouth with the extending direction of feed supplement mouth is parallel, the dynamic adjustment subassembly is including getting material spare and feed supplement spare, it runs through to get the material spare the material mouth, it is used for passing through to get the material spare the material mouth takes out weigh the material in the subassembly, the feed supplement spare with it links to each other to weigh the subassembly, the feed supplement spare is used for passing through the feed supplement mouth to weigh the interior supplementary material of subassembly.

The utility model discloses a dynamic adjustment device for bulk cargo weighing and metering, storage blowing subassembly carry the material to weigh the subassembly in back, according to the measurement data who weighs the subassembly, adjust through the timely weighing material of dynamic adjustment subassembly, make it satisfy the loaded allowed range value in carriage, improve the accuracy of bulk cargo weighing and metering.

In some embodiments, the storage emptying assembly comprises a storage emptying bin and an emptying gate, the lower end of the storage emptying bin is provided with a batching channel communicated with the weighing assembly, and the emptying gate is arranged on the batching channel to control the on-off of the batching channel.

In some embodiments, the weighing assembly comprises: the hopper comprises a hopper body, an unloading gate and a metering sensor, wherein a feed inlet communicated with a batching channel is formed in the upper end face of the hopper body, a discharge opening is formed in the lower end face of the hopper body, a material taking opening and a material supplementing opening are formed in the hopper body, the unloading gate is arranged at the discharge opening to control the opening and closing of the discharge opening, the metering sensor is connected with the hopper body, and the metering sensor is used for metering the weight of materials in the hopper body.

In some embodiments, the cross-sectional area of the material withdrawal opening and the cross-sectional area of the material replenishment opening are both smaller than the cross-sectional area of the ingredient passage.

In some embodiments, the material taking opening and the material supplementing opening are both located on the upper end face of the hopper body.

In some embodiments, the material taking part comprises a first shell and a bucket elevator, the first shell is provided with a material collecting cavity and a material taking channel, an inlet of the material taking channel is communicated with the material taking port, a material inlet communicated with an outlet of the material taking channel is arranged at the upper end of the material collecting cavity, and the bucket elevator is respectively arranged in the material taking channel and the hopper cabin body so as to convey materials in the hopper cabin body to the material collecting cavity through the material taking channel.

In some embodiments, the feeding member includes a second housing having a feeding channel, an outlet of the feeding channel is communicated with the feeding port, and a screw conveyor is disposed in the feeding channel to convey the material into the hopper bin through the feeding channel.

In some embodiments, the material collecting cavity is located above the material supplementing channel, the lower end of the material collecting cavity is provided with a material outlet communicated with the inlet of the material supplementing channel, and the material outlet is provided with a material supplementing valve for controlling the opening and closing of the material outlet.

In some embodiments, the cross-sectional area of the collection chamber decreases in the direction from the top down.

In some embodiments, the dynamic adjustment assembly further comprises a frame, and the material taking part and the material supplementing part are both arranged on the frame.

Drawings

Fig. 1 is a schematic diagram of a dynamic adjusting device for bulk material weighing and metering according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of a dynamic adjustment assembly of a dynamic adjustment device for bulk material weighing and metering according to an embodiment of the present invention.

Reference numerals:

a material storing and discharging component 1, a material storing and discharging bin 11, a material mixing channel 111, a discharging gate 12,

A weighing component 2, a hopper body 21, a discharge gate 22, a metering sensor 23,

The dynamic adjusting assembly 3, the taking component 31, the first shell 311, the collecting cavity 3111, the taking channel 3112, the bucket elevator 312, the feeding valve 313, the feeding component 32, the second shell 321, the feeding channel 3211, the screw conveyor 322 and the frame 33.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are exemplary intended for explaining the present invention, and should not be construed as limiting the present invention.

The following describes a dynamic adjusting device for weighing bulk materials according to an embodiment of the present invention with reference to the accompanying drawings.

As shown in fig. 1 and fig. 2, the dynamic adjusting device for weighing and metering bulk materials according to the embodiment of the present invention includes: the device comprises a material storing and discharging component 1, a weighing component 2 and a dynamic adjusting component 3.

Wherein, the material storing and discharging component 1 is connected with the weighing component 2 to convey materials into the weighing component 2. The storage and discharge assembly 1 is used for storing bulk materials such as coal, ore, grain and sulfur, and the weighing assembly 2 is used for receiving materials conveyed by the storage and discharge assembly 1, metering the materials, and discharging the materials into the carriage when a carriage load value is reached.

The weighing component 2 is provided with a material taking port and a material supplementing port, and the extending direction of the material taking port is parallel to the extending direction of the material supplementing port. The dynamic adjustment subassembly 3 is including getting material piece 31 and feed supplement piece 32, gets material piece 31 and runs through and gets the material mouth, gets material piece 31 and is used for getting the material in weighing subassembly 2 through getting the material mouth, and feed supplement piece 32 links to each other with weighing subassembly 2, and feed supplement piece 32 is used for through the feed supplement mouth to weighing subassembly 2 interior supplementary material.

It can be understood that, when the metering value of the material received by the weighing assembly 2 and conveyed by the material storing and discharging assembly 1 exceeds the allowable range value of the carriage load, the material taking member 31 works to convey the material in the weighing assembly 2 to the outside of the weighing assembly 2 through the material taking port, and after the metering value of the weighing assembly 2 enters the allowable range value, the material taking member 31 stops working.

Similarly, when the metering value of the material received by the weighing assembly 2 and conveyed by the material storing and discharging assembly 1 is lower than the allowable range value of the carriage load, the material supplementing piece 32 works, the material is supplemented into the weighing assembly 2 through the material supplementing opening on the weighing assembly 2, and after the metering value of the weighing assembly 2 enters the allowable range value, the material supplementing piece 32 stops working.

Therefore, the utility model discloses a dynamic adjustment device for bulk cargo weighing and metering, storage blowing subassembly 1 carry the material to weigh subassembly 2 interior back, according to the measurement data who weighs subassembly 2, in time adjust the weighing material through dynamic adjustment subassembly 3, make it satisfy the loaded allowed range value in carriage, improve bulk cargo weighing and metering's accuracy.

In some embodiments, as shown in fig. 1, the magazine emptying assembly 1 comprises a magazine 11 and an emptying gate 12. The lower extreme of storage blowing storehouse 11 is equipped with the batching passageway 111 that communicates with weighing component 2, and blowing gate 12 is established on batching passageway 111 with the break-make of control batching passageway 111.

The weighing assembly 2 comprises: a hopper bin body 21, a discharge gate 22 and a metering sensor 23. The feed inlet that has on the up end of the hopper storehouse body 21 and feed channel 111 intercommunication has a discharge opening on the lower terminal surface of the hopper storehouse body 21, and the material taking opening and the feed supplement opening are all established on the hopper storehouse body 21. The discharge gate 22 is arranged at the discharge opening to control the opening and closing of the discharge opening, the metering sensor 23 is connected with the hopper body 21, and the metering sensor 23 is used for metering the weight of the materials in the hopper body 21.

And, the storing and discharging assembly 1, the weighing assembly 2 and the dynamic adjusting assembly 3 are all on different supporting platforms according to different heights of the setting, for convenience of description, the supporting platform of the storing and discharging assembly 1 is called a storing platform, the supporting platform of the weighing assembly 2 is called a weighing platform, and the supporting platform of the dynamic adjusting assembly 3 is called an adjusting platform.

Optionally, as shown in fig. 1, the storage discharge bin 11 is located above the bunker body 21, the storage discharge bin 11 is disposed on the storage platform, and the storage discharge bin 11 and the bunker body 21 are communicated through a batching channel 111 disposed along the up-down direction. It can be understood that when the discharge gate 12 is opened, the material in the storage and discharge bin 11 falls down into the bunker body 21 through the distribution channel 111 due to its own weight.

Further, as shown in fig. 1, there are a plurality of metering sensors 23, the metering sensors 23 are disposed on the weighing platform, and the silo body 21 is supported on the weighing platform through the plurality of metering sensors 23, so that the metering sensors 23 can measure the weight of the material in the silo body 21 in real time. When the value displayed by the metering sensor 23 satisfies the allowable range value of the load of the carriage, the discharge gate 22 is opened to discharge the material into the carriage.

Specifically, as shown in fig. 1, the cross-sectional area of the storage bin 11 and the cross-sectional area of the bunker body 21 are gradually reduced from top to bottom to facilitate the discharge of the material.

In some embodiments, the cross-sectional area of the material withdrawal opening and the cross-sectional area of the material replenishment opening are both smaller than the cross-sectional area of the ingredient passage 111. It will be appreciated that the cross-sectional area of the batching channel 111 is large, in order to increase the efficiency of the fall of the material inside the hopper bin body 21. The cross section area of the material taking port and the cross section area of the material supplementing port are smaller, and the purpose is to improve the weighing and metering precision.

In other words, if the material falling into the hopper body 21 of the storage and discharge bin 11 is N kilograms per second, the material passing through the material taking port and the material replenishing port is M kilograms per second, which satisfies the following relation: n is more than M.

In some embodiments, as shown in fig. 1, the material taking opening and the material supplementing opening are both located on the upper end surface of the hopper body 21, the material taking opening and the material supplementing opening both extend in the up-down direction, and the material taking opening is located on the right side of the material supplementing opening.

In some embodiments, as shown in fig. 1 and 2, the take off member 31 includes a first housing 311 and a bucket elevator 312. First casing 311 has the chamber of gathering materials 3111 and gets material passageway 3112, gets material passageway 3112's import and gets the material mouth and be linked together, and the upper end of chamber of gathering materials 3111 is equipped with the material import that is linked together with the export of getting material passageway 3112, and bucket elevator 312 is established respectively in getting material passageway 3112 and the bunker body 21 to carry the material in the bunker body 21 to the chamber of gathering materials 3111 in through getting material passageway 3112.

Optionally, as shown in fig. 1 and fig. 2, the material taking channel 3112 includes a vertical section and an inclined section, an opening at the lower end of the vertical section is an inlet of the material taking channel 3112, that is, the opening at the lower end of the vertical section is communicated with the material taking port, and the upper and lower positions of the two correspond to each other. The slope section is located the left side of vertical section, and the upper end of vertical section is linked together with the upper end of slope section, and the opening of slope section lower extreme is the export of getting material passageway 3112, and the opening that is slope section lower extreme promptly is linked together with the material import of collecting cavity 3111.

Wherein, bucket elevator 312 sets up along upper and lower direction, and bucket elevator 312 runs through the material taking port of the storehouse body of hopper 21, has a plurality of hoppers of getting on bucket elevator 312, through the cyclic motion of a plurality of hoppers of getting, in order to promote the material in the storehouse body of hopper 21 to vertical section through getting the material mouth, get the hopper when the upper end through vertical section, empty the material to the slope section in, slide to the chamber 3111 that gathers materials in through the dead weight of material in, thereby realize the utility model discloses a get the material operation that is used for the dynamic adjustment device of bulk cargo weighing measurement. The capacity of the take-out hopper of the bucket elevator 312 is 0.5kg to 1kg.

In some embodiments, as shown in fig. 1 and 2, the feeding element 32 comprises a second housing 321 and a screw conveyor 322. The second casing 321 has a feeding channel 3211, an outlet of the feeding channel 3211 is communicated with a feeding port, and a screw conveyor 322 is disposed in the feeding channel 3211 to convey the material into the hopper body 21 through the feeding channel 3211.

Optionally, as shown in fig. 1 and fig. 2, the material supplementing channel 3211 includes a first section, a second section, and a third section that are connected in sequence, the first section and the third section are both disposed along the vertical direction, the second section is disposed along the horizontal direction, an opening at the upper end of the first section is an inlet of the material supplementing channel 3211, a lower end of the first section is connected to the left end of the second section, a right end of the second section is connected to the upper end of the third section, an opening at the lower end of the third section is an outlet of the material supplementing channel 3211, that is, an opening at the lower end of the third section is communicated with the material supplementing port, and the upper and lower positions of the two sections correspond to each other.

Wherein the screw conveyor 322 is arranged along the left-right direction, and the screw conveyor 322 is arranged in the second section. Import through feed supplement passageway 3211 is to supplementary material in the feed supplement passageway 3211, then carry the material of supplementary to feed supplement mouth department through screw conveyer 322, rely on gravity to fall to the hopper storehouse body 21 in, thereby realize the utility model discloses a feed supplement operation that is used for bulk cargo weighing and metering's dynamic adjustment device.

In addition, the working efficiency of the material taking operation and the material supplementing operation is 5kg to 10kg per second, in other words, the material lifted out of the hopper body 21 through the material taking opening per second is 5kg to 10kg, and the material supplemented into the hopper body 21 through the material supplementing opening per second is 5kg to 10kg.

In some embodiments, as shown in fig. 1 and fig. 2, the collecting cavity 3111 is located above the feeding channel 3211, the lower end of the collecting cavity 3111 is provided with a material outlet communicated with the inlet of the feeding channel 3211, and the material outlet is provided with a feeding valve 313, the feeding valve 313 is used for controlling the opening and closing of the material outlet.

Alternatively, as shown in fig. 1 and 2, the material outlet of the material collecting cavity 3111 is located right above the inlet of the replenishing channel 3211, and when the replenishing valve 313 is opened, the material in the material collecting cavity 3111 falls into the replenishing channel 3211 due to its own weight.

It can be understood that the material collecting cavity 3111 can effectively store the material taken out from the hopper body 21 by the buffer bucket elevator 312, and ensure the rapid and stable operation of the material taking member 31. Meanwhile, the material collecting cavity 3111 can provide materials for the material feeding channel 3211, so as to ensure that the material feeding part 32 feeds the materials into the hopper body 21. Specifically, the volume of the collecting cavity 3111 is 100kg-200kg.

Further, as shown in fig. 1 and 2, the cross-sectional area of the aggregate chamber 3111 is gradually reduced in the direction from the top to the bottom. It is understood that the right wall surface of the material collecting cavity 3111 is inclined to facilitate the material in the material collecting cavity 3111 sliding down to the material feeding channel 3211.

In some embodiments, as shown in fig. 1 and 2, the dynamic adjustment assembly 3 further includes a frame 33, and the material taking part 31 and the material feeding part 32 are both disposed on the frame 33. It will be appreciated that frame 33 is disposed on the adjustment platform, and that frame 33 serves to support and protect material extracting member 31 and the material distribution assembly.

In summary, the following describes an operation method of the dynamic adjustment device for weighing and metering bulk material in the loading process according to an embodiment of the present invention:

the discharge gate 12 of the storage discharge bin 11 is opened to carry out batching in the hopper body 21, the metering sensor 23 synchronously meters, when the carriage load value is approached, the discharge gate 12 is quickly closed, the metering sensor 23 meters and displays the final value, and the value displayed by the metering sensor 23 is compared with the allowable range value of the carriage load.

If the weighing value of the materials in the hopper body 21 displayed by the metering sensor 23 is within the allowable range, the discharge gate 22 of the hopper body 21 is opened, the materials are discharged into the carriage until the materials in the hopper body 21 are emptied, and the discharge gate 22 is closed to start the next weighing and metering.

If the weighing value of the materials in the hopper body 21 displayed by the metering sensor 23 exceeds the allowable range value, the bucket elevator 312 timely reacts to act, quickly takes the materials from the top stockpile in the hopper body 21, simultaneously lifts the materials out of the hopper and conveys the materials to the aggregate cavity 3111, and when the weighing value of the metering sensor 23 enters the allowable range value, the bucket elevator 312 quickly stops running. And then the discharge gate 22 of the hopper body 21 is opened, the materials are discharged into the carriage until the materials in the hopper body 21 are emptied, and the discharge gate 22 is closed to start the next weighing and metering.

If the weighing value of the material in the hopper body 21 displayed by the metering sensor 23 is lower than the allowable range value, the feeding valve 313 is opened, and the material in the aggregate cavity 3111 is fed into the feeding channel 3211 according to the difference between the weighing value and the allowable range value, and then the feeding valve 313 is closed. The screw conveyor 322 timely reacts and acts to quickly convey the materials in the feeding channel 3211 to the hopper body 21, and when the weighing value of the metering sensor 23 enters the allowable value range, the screw conveyor 322 stops operating quickly. And then the discharge gate 22 of the hopper body 21 is opened, the materials are discharged into the carriage until the materials in the hopper body 21 are emptied, and the discharge gate 22 is closed to start the next weighing and metering.

Therefore, the utility model discloses a dynamic adjustment device for bulk cargo weighing measurement has realized the closed loop dynamic adjustment of material weighing measurement precision at continuous loading in-process, has avoided the problem that the precision that weighing measurement open-loop control in the correlation technique caused is low, can adapt to the weighing measurement required precision of the quick quantitative loading of bulk cargo commonly used such as coal, ore, grain, sulphur. And the dynamic adjusting assembly 3 has a compact structure and high integration level, can be effectively combined with a quick-mounting system for use, realizes closed-loop control by itself, does not need external assistance under normal working conditions, is a high-efficiency stable innovative device for improving the weighing and metering precision of a large-capacity hopper scale, and has good application effect and prospect.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.

Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations to the above embodiments by those of ordinary skill in the art are intended to be within the scope of the present invention.

Claims (10)

1. A dynamic adjustment device for bulk material weighing, comprising:

a material storing and discharging assembly;

the material storage and discharge assembly is connected with the weighing assembly to convey materials into the weighing assembly, the weighing assembly is provided with a material taking port and a material supplementing port, and the extending direction of the material taking port is parallel to the extending direction of the material supplementing port;

the dynamic adjustment assembly comprises a material taking part and a material supplementing part, the material taking part penetrates through the material taking opening, the material taking part is used for taking out materials in the weighing assembly through the material taking opening, the material supplementing part is connected with the weighing assembly, and the material supplementing part is used for supplementing materials in the weighing assembly through the material supplementing opening.

2. The dynamic adjusting device for weighing and metering bulk cargoes according to claim 1, wherein the storage emptying assembly comprises a storage emptying bin and an emptying gate, the lower end of the storage emptying bin is provided with a batching channel communicated with the weighing assembly, and the emptying gate is arranged on the batching channel to control the on-off of the batching channel.

3. The dynamic adjustment device for bulk material weighing and metering of claim 2, wherein the weighing assembly comprises:

the upper end surface of the hopper body is provided with a feeding hole communicated with the batching channel, the lower end surface of the hopper body is provided with a discharging hole, and the material taking hole and the material supplementing hole are both arranged on the hopper body;

the discharge gate is arranged at the discharge opening to control the opening and the closing of the discharge opening;

the metering sensor is connected with the hopper body and used for metering the weight of materials in the hopper body.

4. The dynamic adjustment device for bulk weighing according to claim 3, wherein the cross-sectional area of the material taking port and the cross-sectional area of the material replenishing port are both smaller than the cross-sectional area of the material distribution channel.

5. The dynamic adjusting device for weighing and metering bulk cargoes according to claim 4, wherein the material taking port and the material supplementing port are both positioned on the upper end surface of the hopper body.

6. The dynamic adjustment device for bulk material weighing and metering of claim 3, wherein the take-off member comprises:

the material taking device comprises a first shell, a second shell and a third shell, wherein the first shell is provided with a material collecting cavity and a material taking channel, an inlet of the material taking channel is communicated with a material taking port, and a material inlet communicated with an outlet of the material taking channel is formed in the upper end of the material collecting cavity;

the bucket elevator is arranged in the material taking channel and the hopper bin body respectively so as to convey materials in the hopper bin body to the material collecting cavity through the material taking channel.

7. The dynamic adjustment device for bulk material weighing and metering of claim 6, wherein the material replenishing member comprises:

the second shell is provided with a feed supplement channel, and the outlet of the feed supplement channel is communicated with the feed supplement port;

the spiral conveyor is arranged in the material supplementing channel so as to convey materials into the hopper bin body through the material supplementing channel.

8. The dynamic adjusting device for weighing and metering bulk cargoes according to claim 7, wherein the collecting cavity is located above the feeding channel, a material outlet communicated with an inlet of the feeding channel is arranged at the lower end of the collecting cavity, and a feeding valve is arranged at the material outlet and used for controlling the opening and closing of the material outlet.

9. The dynamic adjustment device for bulk material weighing according to claim 8, wherein the cross-sectional area of the material collection chamber is gradually reduced in the direction from top to bottom.

10. The dynamic adjustment device for bulk material weighing and metering of any one of claims 1-9, wherein the dynamic adjustment assembly further comprises a frame, and the take-up member and the supplement member are both provided on the frame.

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