CN219334569U - Weighing and discharging device, feeding equipment and flotation machine - Google Patents

Abstract

The utility model provides a weighing and discharging device, feeding equipment and a flotation machine. The weighing and discharging device comprises a frame, a storage component, a discharging structure and a weighing device, wherein a first discharging hole of at least one storage structure is opened, so that one of ore pulp and medicament in the storage component is discharged into the discharging structure through the first discharging hole, when the weighing value of the weighing device is greater than or equal to a first preset weight value, the first discharging hole which is discharging is closed, the first discharging hole of at least one other storage structure is opened, so that the other one of ore pulp and medicament in the storage component is discharged into the discharging structure through the first discharging hole, and when the weighing value of the weighing device is greater than or equal to a second preset weight value, the first discharging hole which is discharging is closed and the outlet is opened, so that discharging is performed; the first preset weight value is smaller than the second preset weight value. The utility model effectively solves the problem of lower automation degree of the discharging device of the coal dressing flotation machine in the prior art.

Description

Weighing and discharging device, feeding equipment and flotation machine

Technical Field

The utility model relates to the technical field of coal dressing flotation machines, in particular to a weighing and discharging device, feeding equipment and a flotation machine.

Background

At present, a coal dressing flotation machine (a floating concentrator) is one of important equipment of a coal dressing plant, ore pulp and corresponding medicaments are conveyed into the coal dressing flotation machine, after stirring and aeration, part of ore particles in the ore pulp are selectively fixed on air bubbles, and then the purpose of separating minerals is achieved, and in order to ensure the mineral separation effect of the coal dressing flotation machine, the addition amount of the ore pulp and the corresponding medicaments needs to be controlled.

In the prior art, normally, the pulp amount and the medicament amount in the discharging barrels of the coal flotation machine are manually observed by a worker, and after the pulp amount and the medicament amount stored in the two discharging barrels meet the requirements, the worker opens the corresponding valve to add the pulp and the medicament into subsequent equipment.

However, the addition process of the ore pulp and the medicament is completed manually, so that a great amount of human resources are wasted, and the labor intensity of workers is increased.

Disclosure of Invention

The utility model mainly aims to provide a weighing and discharging device, feeding equipment and a flotation machine, so as to solve the problem that the discharging device of a coal flotation machine in the prior art is low in automation degree.

In order to achieve the above object, according to one aspect of the present utility model, there is provided a weighing and discharging device comprising: a frame; the storage assembly comprises at least two storage structures, each storage structure is provided with a first feed inlet, a storage cavity and a first discharge outlet, and the first feed inlet is communicated with the first discharge outlet through the storage cavity; wherein the storage cavity of at least one storage structure is used for storing ore pulp, and the storage cavity of at least one other storage structure is used for storing medicament; the discharging structure is arranged on the frame and is provided with an inlet and an outlet, the inlet is selectively communicated with the first discharging holes of all the storage structures, and the outlet is used for discharging; the weighing device is arranged on the blanking structure and used for weighing ore pulp and/or medicament entering the blanking structure; the method comprises the steps of opening a first discharge hole of at least one storage structure to enable one of ore pulp and medicament in the storage component to be discharged into a discharging structure through the first discharge hole, closing the first discharge hole in discharging when the weighing value of a weighing device is larger than or equal to a first preset weight value, opening the first discharge hole of at least one other storage structure to enable the other one of ore pulp and medicament in the storage component to be discharged into the discharging structure through the first discharge hole, and closing the first discharge hole in discharging and opening an outlet when the weighing value of the weighing device is larger than or equal to a second preset weight value so as to perform discharging; the first preset weight value is smaller than the second preset weight value.

Further, the weighing and blanking device further comprises: the pipeline comprises a main pipeline and at least two branch pipelines, the at least two branch pipelines are arranged in one-to-one correspondence with the at least two storage structures, the first end of the main pipeline is communicated with the inlet, the second end of the main pipeline is communicated with the first end of each branch pipeline, and the second end of each branch pipeline is communicated with the first discharge port of the corresponding storage structure; the at least two first control valves are arranged in one-to-one correspondence with the at least two branch pipelines, and each first control valve is used for controlling the on-off state of the corresponding branch pipeline; and the control module is connected with at least two first control valves and the weighing device.

Further, the rack comprises a rack body and a bearing plate, the bearing plate is arranged on the rack body and positioned below the storage component, the bearing plate is provided with an avoidance hole, and the weighing device is a weight sensor; the blanking structure comprises: a blanking funnel having an inlet and an outlet; the transition contact structure is arranged on the outer peripheral surface of the blanking funnel; the weight sensor is arranged on the bearing plate, and at least part of the blanking funnel extends into the avoidance hole so that the transition contact structure is in pressure connection with the weight sensor.

Further, the number of the transition contact structures is one, one transition contact structure is annular, the number of the weight sensors is multiple, and the weight sensors are arranged at intervals along the extending direction of the transition contact structure; or, the transition contact structure is a plurality of, and a plurality of transition contact structures are arranged along the circumference interval of the blanking funnel, and the weight sensor is a plurality of, and a plurality of weight sensors and a plurality of transition contact structures are arranged in one-to-one correspondence.

Further, the blanking structure further comprises a blanking pipe, and the blanking pipe is arranged at the outlet and is communicated with the outlet; wherein, be provided with the second control valve on the unloading pipe, the second control valve is used for controlling the break-make state of unloading pipe.

Further, the blanking pipe is rotatably connected with the blanking funnel; the blanking pipe comprises a first pipe section, a second pipe section and a third pipe section which are sequentially connected; the first pipe section is arranged at a first included angle with the second pipe section, and the second pipe section is arranged at a second included angle with the third pipe section.

Further, the export is the round hole, and the unloader that weighs still includes coupling assembling, coupling assembling includes: the mounting structure is arranged at one end of the blanking funnel, which is provided with an outlet, and is provided with a mounting cavity communicated with the outlet; the bearing is arranged in the mounting cavity, and the outer ring of the bearing is connected with the cavity wall of the mounting cavity; at least part of the first pipe section is arranged in the inner ring of the bearing in a penetrating way and is connected with the inner ring, one end of the first pipe section, which is far away from the second pipe section, is a connecting end, and the connecting end penetrates through the inner ring and then extends into the outlet; the outer peripheral surface of the connecting end is provided with a stop protruding edge, and the stop protruding edge is used for limiting and stopping the inner surface of the blanking funnel so that the blanking pipe and the blanking funnel can be rotatably connected.

Further, the storage component includes: a cylindrical body; the baffle is arranged in the cylindrical body, and the plate surface of the baffle and at least part of the inner wall of the cylindrical body surround to form a storage structure; wherein, the partition board is one; alternatively, the plurality of partition plates are arranged at intervals around the central axis of the cylindrical body.

According to another aspect of the present utility model, there is provided a feeding apparatus including a weighing and discharging device and a feeding device including: the shell is provided with a second feeding hole, a feeding cavity and a second discharging hole, and the second feeding hole is communicated with the second discharging hole through the feeding cavity; the auger is rotatably arranged in the feeding cavity and used for stirring and conveying ore pulp and/or medicament entering the feeding cavity; the driving device is in driving connection with the auger to drive the auger to rotate; wherein, the second feed inlet communicates with the export of the unloading structure of the weighing and unloading device, and the weighing and unloading device is the weighing and unloading device.

According to another aspect of the utility model there is provided a flotation machine comprising a flotation machine body and a feed device, the feed device being the feed device described above.

By applying the technical scheme of the utility model, the storage component and the discharging structure of the weighing and discharging device are arranged on the frame, the storage component comprises at least two storage structures, each storage structure is provided with a first feeding hole, a storage cavity and a first discharging hole, the first feeding hole is communicated with the first discharging hole through the storage cavity, the storage cavity of at least one storage structure is used for storing ore pulp, the storage cavity of at least one other storage structure is used for storing medicaments, the discharging structure is provided with an inlet and an outlet, the inlet is selectively communicated with the first discharging holes of all the storage structures, the outlet is used for discharging, and the weighing device is arranged on the discharging structure and is used for weighing the ore pulp and/or medicaments entering the discharging structure. Thus, when the weighing and discharging device performs discharging, the first discharging hole of at least one storage structure is opened, so that one of ore pulp and medicament in the storage component is discharged into the discharging structure through the first discharging hole, when the weighing value of the weighing device is larger than or equal to a first preset weight value, the first discharging hole which is discharging is closed, the first discharging hole of at least one other storage structure is opened, so that the other one of ore pulp and medicament in the storage component is discharged into the discharging structure through the first discharging hole, when the weighing value of the weighing device is larger than or equal to a second preset weight value, the first discharging hole which is discharging is closed and the outlet is opened for discharging, so that the weighing and discharging device can complete all discharging processes sequentially and automatically according to the weighing value of the weighing device, observation and operation of staff are not needed, the labor intensity of the staff is greatly reduced, the problem that the degree of automation of the discharging device of the coal selecting flotation machine in the prior art is lower is solved, and the degree of automation of the weighing and discharging device is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

fig. 1 shows a schematic perspective view of a first embodiment of a weighing and blanking apparatus according to the present utility model;

FIG. 2 shows an enlarged schematic view of the weighing and blanking apparatus of FIG. 1 at A;

fig. 3 shows a schematic perspective view of a blanking structure of a second embodiment of a weighing and blanking device according to the present utility model;

FIG. 4 shows a schematic cross-sectional view of the blanking structure of FIG. 3;

fig. 5 shows a schematic perspective view of a first embodiment of a feeding device according to the present utility model;

fig. 6 shows a partial cross-sectional view of the feeding device of the feeding apparatus of fig. 5.

Wherein the above figures include the following reference numerals:

100. weighing and discharging devices; 10. a frame; 11. a frame body; 12. a carrying plate; 20. a storage component; 21. a storage structure; 212. a storage chamber; 22. a cylindrical body; 23. a partition plate; 30. a blanking structure; 31. an inlet; 32. an outlet; 33. a blanking funnel; 34. a transitional contact structure; 35. discharging pipes; 36. a connection assembly; 361. a mounting structure; 362. a bearing; 351. a first pipe section; 352. a second pipe section; 353. a third pipe section; 40. a weighing device; 50. a pipeline; 51. a main pipeline; 52. a branch pipeline; 200. a feeding device; 210. a housing; 201. a second feed inlet; 202. a feed cavity; 203. a second discharge port; 220. a driving device; 230. and (5) a packing auger.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.

In the present utility model, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used generally with respect to the orientation shown in the drawings or to the vertical, vertical or gravitational orientation; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present utility model.

In order to solve the problem that the degree of automation of the discharging device of the coal dressing flotation machine in the prior art is lower, the application provides a weighing discharging device, feeding equipment and a flotation machine.

Example 1

As shown in fig. 1 and 2, the weighing and blanking device comprises a frame 10, a storage assembly 20, a blanking structure 30 and a weighing device 40, wherein the storage assembly 20 comprises at least two storage structures 21, each storage structure 21 is provided with a first feeding hole, a storage cavity 212 and a first discharging hole, and the first feeding hole is communicated with the first discharging hole through the storage cavity 212. Wherein the storage cavities 212 of at least one storage structure 21 are used for storing pulp and the storage cavities 212 of at least one other storage structure 21 are used for storing medicament. The blanking structure 30 is arranged on the frame 10, the blanking structure 30 is provided with an inlet 31 and an outlet 32, the inlet 31 is selectively communicated with the first discharging holes of all the storage structures 21, and the outlet 32 is used for blanking. A weighing device 40 is provided on the discharge structure 30 for weighing the pulp and/or medicament entering the discharge structure 30. Wherein, the first discharging hole of at least one storage structure 21 is opened to enable one of the ore pulp and the medicament in the storage assembly 20 to be discharged into the discharging structure 30 through the first discharging hole, when the weighing value of the weighing device 40 is greater than or equal to the first preset weight value, the first discharging hole which is discharging is closed, the first discharging hole of at least one other storage structure 21 is opened to enable the other one of the ore pulp and the medicament in the storage assembly 20 to be discharged into the discharging structure 30 through the first discharging hole, and when the weighing value of the weighing device 40 is greater than or equal to the second preset weight value, the first discharging hole which is discharging is closed and the outlet 32 is opened to perform discharging. The first preset weight value is smaller than the second preset weight value.

According to the technical scheme of the embodiment, a storage component 20 and a discharging structure 30 of a weighing and discharging device are arranged on a frame 10, the storage component 20 comprises at least two storage structures 21, each storage structure 21 is provided with a first feeding hole, a storage cavity 212 and a first discharging hole, the first feeding hole is communicated with the first discharging hole through the storage cavity 212, the storage cavity 212 of at least one storage structure 21 is used for storing ore pulp, the storage cavity 212 of at least one other storage structure 21 is used for storing medicaments, the discharging structure 30 is provided with an inlet 31 and an outlet 32, the inlet 31 is selectively communicated with the first discharging holes of all the storage structures 21, the outlet 32 is used for discharging, and a weighing device 40 is arranged on the discharging structure 30 and is used for weighing ore pulp and/or medicaments entering the discharging structure 30. Thus, when the weighing and discharging device performs discharging, the first discharging hole of at least one storage structure 21 is opened, so that one of ore pulp and medicament in the storage assembly 20 is discharged into the discharging structure 30 through the first discharging hole, when the weighing value of the weighing device 40 is greater than or equal to a first preset weight value, the first discharging hole which is discharging is closed, the first discharging hole of at least one other storage structure 21 is opened, so that the other one of ore pulp and medicament in the storage assembly 20 is discharged into the discharging structure 30 through the first discharging hole, when the weighing value of the weighing device 40 is greater than or equal to a second preset weight value, the first discharging hole which is discharging is closed and the outlet 32 is opened for discharging, so that the weighing and discharging device can sequentially and automatically complete all discharging processes according to the weighing value of the weighing device 40, observation and operation of staff are not needed, the labor intensity of the staff is greatly reduced, the problem that in the prior art, the automatic degree of the discharging device of the coal flotation machine is low in degree is solved, and the automatic degree of weighing device is lifted.

In this embodiment, the storage assembly 20 includes two storage structures 21, the storage cavity 212 of one storage structure 21 is used for storing pulp, and the storage cavity 212 of the other storage structure 21 is used for storing medicament, so that the structure of the storage assembly 20 is simpler, easy to process and implement on the premise of being capable of independently storing pulp and medicament, and further the processing difficulty of staff is reduced.

It should be noted that the number of the storage structures 21 is not limited thereto, and may be adjusted according to the working conditions and the use requirements. Alternatively, the storage structure 21 is three, or four, or five, or six, or seven, or eight, or more.

Optionally, the weighing and blanking device further includes a pipeline 50, at least two first control valves and a control module, where the pipeline 50 includes a main pipeline 51 and at least two branch pipelines 52, the at least two branch pipelines 52 are disposed in one-to-one correspondence with the at least two storage structures 21, a first end of the main pipeline 51 is communicated with the inlet 31, a second end of the main pipeline 51 is communicated with a first end of each branch pipeline 52, and a second end of each branch pipeline 52 is communicated with a first discharge port of its corresponding storage structure 21. At least two first control valves are arranged in one-to-one correspondence with at least two branch pipelines 52, and each first control valve is used for controlling the on-off state of the corresponding branch pipeline 52. The control module is connected to at least two first control valves and weighing means 40. Thus, the on-off state of the branch pipeline 52 is controlled by the first control valve to control the on-off state of the first discharge port, so that the control method of the on-off state of the first discharge port is simpler, and the operation difficulty of staff is reduced. Meanwhile, the arrangement on the one hand enables the arrangement number of branch pipelines 52 to be more flexible and diversified so as to adapt to different working conditions and use requirements, and the processing flexibility of staff is improved; on the other hand makes through each first discharge gate exhaust ore pulp or medicament all can go out to the unloading structure 30 in through main pipeline 51 to reduce the size of entry 31, avoid taking place the material and leak, promoted the unloading stability of weighing unloader.

In the present embodiment, the piping 50 includes a main piping 51 and two branch piping 52, and the two branch piping 52 are provided in one-to-one correspondence with the two storage structures 21.

It should be noted that the number of branch pipes 52 is not limited thereto, and may be adjusted according to the working conditions and the use requirements. Alternatively, branch lines 52 are three, or four, or five, or six, or seven, or eight, or more.

Specifically, the first end of the main pipe 51 extends into the discharging structure 30 along the vertical direction, so that on one hand, the ore pulp or the medicament can flow into the discharging structure 30 under the action of self gravity; on the other hand, the ore pulp or the medicament can be prevented from splashing out of the blanking structure 30, and then the discharging stability of the storage component 20 is improved. Meanwhile, the first end of the main pipe 51 is not in contact with the inner wall of the discharging structure 30, so as to avoid affecting the weighing accuracy of the weighing device 40.

Optionally, the first control valve is an electronically controlled switch valve.

As shown in fig. 1 and 2, the rack 10 includes a rack body 11 and a carrier plate 12, the carrier plate 12 is disposed on the rack body 11 and is located below the storage component 20, the carrier plate 12 has a avoidance hole, and the weighing device 40 is a weight sensor; the blanking structure 30 comprises a blanking funnel 33 and a transitional contact structure 34, the blanking funnel 33 having an inlet 31 and an outlet 32. The transitional contact structure 34 is provided on the outer peripheral surface of the hopper 33. The weight sensor is disposed on the carrier plate 12, and at least a portion of the blanking funnel 33 extends into the avoidance hole, so that the transitional contact structure 34 is pressed against the weight sensor. In this way, the blanking funnel 33 is crimped on the weight sensor through the transition contact structure 34, so that the weight of the blanking funnel 33, the weight of the ore pulp and the medicament in the blanking funnel 33 and the weight of the transition contact structure 34 are detected through the weight sensor, and the weight of the ore pulp and the medicament is calculated; on the other hand, the carrier plate 12 is suspended on the carrier plate 12 through the transitional contact structure 34, so that the influence on the detection accuracy of the weight sensor caused by the contact between the carrier plate 12 and the blanking funnel 33 is avoided.

Specifically, the weight of the ore pulp and the medicament in the discharging hopper 33 is obtained by subtracting the weight of the discharging hopper 33 and the transitional contact structure 34 from the detection value of the weight sensor.

Optionally, the number of the transition contact structures 34 is one, one transition contact structure 34 is annular, the number of the weight sensors is multiple, and the weight sensors are arranged at intervals along the extending direction of the transition contact structure 34; or, the transition contact structures 34 are plural, the plural transition contact structures 34 are arranged at intervals along the circumferential direction of the blanking funnel 33, the plural weight sensors are plural, and the plural weight sensors are arranged in one-to-one correspondence with the plural transition contact structures 34. In this way, when the weight sensors are provided in a plurality, on one hand, the contact area between the weight sensors and the transition contact structure 34 can be increased, so as to improve the placement stability of the blanking funnel 33, and avoid the influence of the offset and the shaking of the blanking funnel on the detection accuracy of the weight sensors; on the other hand, the average value of the detection values of the weight sensors can be calculated, so that the detection accuracy of the weight sensors is further improved. Meanwhile, the arrangement of the transition contact structures 34 is more flexible and various in number and arrangement mode, so that the transition contact structures are suitable for different working conditions and use requirements, and the processing flexibility of workers is improved.

In this embodiment, one transition contact structure 34 is annular, four weight sensors are disposed at intervals along the extending direction of the transition contact structure 34.

It should be noted that the number of the transitional contact structures 34 is not limited thereto, and may be adjusted according to the working conditions and the use requirements. Alternatively, the transition contact structure 34 is two, or three, or four, or five, or six, or more.

It should be noted that the number of the weight sensors is not limited to this, and can be adjusted according to the working conditions and the use requirements. Alternatively, the weight sensor is two, or three, or five, or six, or seven, or more.

In other embodiments not shown in the drawings, the number of the transition contact structures is plural, the plurality of transition contact structures are arranged at intervals along the circumferential direction of the blanking funnel, the number of the weight sensors is plural, and the plurality of weight sensors are arranged in one-to-one correspondence with the plurality of transition contact structures.

As shown in fig. 1 and 2, the blanking structure 30 further includes a blanking pipe 35, and the blanking pipe 35 is disposed at the outlet 32 and is in communication with the outlet 32; wherein, the blanking pipe 35 is provided with a second control valve, and the second control valve is used for controlling the on-off state of the blanking pipe 35. In this way, the on-off state of the discharging pipe 35 is controlled by the second control valve to control the on-off state of the outlet 32, so that the control method of the on-off state of the outlet 32 is simpler, and the operation difficulty of staff is reduced.

In the present embodiment, the blanking pipe 35 is fixedly disposed at the outlet 32 and communicates with the outlet 32.

Specifically, the second control valve is connected with the control module, and when the detection value of the weight sensor is greater than or equal to a second preset weight value, the control module controls the second control valve to be opened so as to perform blanking.

Optionally, the second control valve is an electronically controlled on-off valve.

In this embodiment, the detection value of the weight sensor should also be subtracted by the mass of the blanking pipe 35 and the second control valve.

Alternatively, the storage assembly 20 includes a cylindrical body 22 and a partition 23, the partition 23 being disposed within the cylindrical body 22, the plate surface of the partition 23 and at least a portion of the inner wall of the cylindrical body 22 surrounding to form the storage structure 21. Wherein the partition 23 is one; alternatively, the number of the spacers 23 is plural, and the spacers 23 are disposed at intervals around the central axis of the tubular body 22. In this way, the above arrangement makes each storage structure 21 be an integral structure, so that the volume of the storage assembly 20 is reduced, and the miniaturized design of the weighing and discharging device is realized; on the other hand, the number of the baffle plates 23 is more flexible and various, so as to adapt to different working conditions and use requirements, and the processing flexibility of staff is improved.

In the present embodiment, the partition plates 23 are one, and one partition plate 23 is provided in the cylindrical body 22 to surround the cylindrical body 22 to form two storage structures 21.

It should be noted that the number of the partition plates 23 is not limited thereto, and may be adjusted according to the working conditions and the use requirements. Alternatively, the separator 23 is two, or three, or four, or five, or six, or seven, or more.

As shown in fig. 5 and 6, the present application further provides a feeding device, where the feeding device includes a weighing and discharging device 100 and a feeding device 200, the feeding device 200 includes a housing 210, an auger 230, and a driving device 220, the housing 210 has a second feeding port 201, a feeding cavity 202, and a second discharging port 203, and the second feeding port 201 is communicated with the second discharging port 203 through the feeding cavity 202. A packing auger 230 is rotatably disposed within the feed chamber 202 for agitating and transporting the slurry and/or medicament entering the feed chamber 202. The driving device 220 is in driving connection with the auger 230 to drive the auger 230 to rotate. The second feeding port 201 is communicated with the outlet 32 of the discharging structure 30 of the weighing and discharging device 100, and the weighing and discharging device 100 is the weighing and discharging device described above. Thus, after the weighing and discharging device 100 discharges the pulp and the chemical into the feeding chamber 202, the packing auger 230 rotates to stir the pulp and the chemical while conveying them, so as to ensure the mixing uniformity of the pulp and the chemical.

The present application also provides a flotation machine (not shown) comprising a flotation machine body and a feeding device, the feeding device being the feeding device described above.

Example two

The weighing and blanking device in the second embodiment is different from the first embodiment in that: the connection between the blanking pipe 35 and the blanking funnel 33 is different.

Optionally, the blanking tube 35 is rotatably connected to the blanking funnel 33. The blanking pipe 35 includes a first pipe section 351, a second pipe section 352, and a third pipe section 353 connected in sequence. Wherein, the second pipe section 352 and the first pipe section 351 are disposed at a first included angle, and the third pipe section 353 and the second pipe section 352 are disposed at a second included angle. Like this, can adjust the unloading position of unloading structure 30 through rotating unloading pipe 35 to make unloading position and follow-up equipment's feed inlet be linked together, and then make the staff need not to adjust the position of weighing unloader or follow-up equipment, reduced staff's intensity of labour to a great extent. Meanwhile, the included angle between the second pipe section 352 and the first pipe section 351 and the included angle between the third pipe section 353 and the second pipe section 352 are more flexible and various due to the arrangement, so that different working conditions and use requirements are met, and the processing flexibility of workers is improved.

In this embodiment, the second pipe section 352 is disposed at 120 ° to the first pipe section 351, and the third pipe section 353 is disposed at 120 ° to the second pipe section 352. Like this, above-mentioned setting makes second pipeline section 352 slope set up downwards, and third pipeline section 353 sets up vertically downwards to make the ore pulp or the medicament that get into in second pipeline section 352 can flow to third pipeline section 353 under the effect of self gravity, and continue to flow into subsequent equipment, and then promoted weighing unloader's unloading stability.

It should be noted that, the value of the first included angle between the second pipe section 352 and the first pipe section 351 is not limited thereto, and may be adjusted according to the working condition and the use requirement. Optionally, the first angle between the second tube section 352 and the first tube section 351 is 100 °, or 110 °, or 130 °, or 140 °, or 150 °.

It should be noted that, the value of the second included angle between the third pipe section 353 and the second pipe section 352 is not limited thereto, and may be adjusted according to the working condition and the use requirement. Optionally, the second angle between the third tube segment 353 and the second tube segment 352 is 100 °, or 110 °, or 130 °, or 140 °, or 150 °.

As shown in fig. 3 and 4, the outlet 32 is a circular hole, the weighing and discharging device further comprises a connecting assembly 36, the connecting assembly 36 comprises a mounting structure 361 and a bearing 362, the mounting structure 361 is arranged on one end of the discharging funnel 33 with the outlet 32, and the mounting structure 361 is provided with a mounting cavity communicated with the outlet 32. The bearing 362 is disposed in the mounting cavity, and an outer race of the bearing 362 is connected to a cavity wall of the mounting cavity. At least a portion of the first pipe section 351 is arranged in the inner ring of the bearing 362 in a penetrating way and is connected with the inner ring, one end of the first pipe section 351 far away from the second pipe section 352 is a connecting end, and the connecting end penetrates through the inner ring and then extends into the outlet 32; the outer circumferential surface of the connecting end is provided with a stop protruding edge, and the stop protruding edge is used for limiting and stopping with the inner surface of the blanking funnel 33 so as to rotatably connect the blanking pipe 35 with the blanking funnel 33. Thus, the above arrangement supports the first pipe section 351 through the bearing 362 on one hand to promote the rotational smoothness of the first pipe section 351; on the other hand, the first pipe section 351 can be prevented from falling out of the blanking funnel 33 through the stop protruding edge and the inner surface limit stop of the blanking funnel 33, so that the assembly stability of the first pipe section 351 is improved, and ore pulp and medicament in the blanking funnel 33 can be prevented from flowing out of an assembly gap between the first pipe section 351 and the blanking funnel 33.

From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

the storage component and the unloading structure of the weighing and discharging device are arranged on the frame, the storage component comprises at least two storage structures, each storage structure is provided with a first feed inlet, a storage cavity and a first discharge outlet, the first feed inlet is communicated with the first discharge outlet through the storage cavity, the storage cavity of at least one storage structure is used for storing ore pulp, the storage cavity of at least one other storage structure is used for storing medicaments, the unloading structure is provided with an inlet and an outlet, the inlet is selectively communicated with the first discharge outlet of all the storage structures, the outlet is used for discharging, and the weighing device is arranged on the unloading structure and used for weighing ore pulp and/or medicaments entering the unloading structure. Thus, when the weighing and discharging device performs discharging, the first discharging hole of at least one storage structure is opened, so that one of ore pulp and medicament in the storage component is discharged into the discharging structure through the first discharging hole, when the weighing value of the weighing device is larger than or equal to a first preset weight value, the first discharging hole which is discharging is closed, the first discharging hole of at least one other storage structure is opened, so that the other one of ore pulp and medicament in the storage component is discharged into the discharging structure through the first discharging hole, when the weighing value of the weighing device is larger than or equal to a second preset weight value, the first discharging hole which is discharging is closed and the outlet is opened for discharging, so that the weighing and discharging device can sequentially and automatically complete all discharging processes according to the weighing value of the weighing device 40, observation and operation of staff are not needed, the labor intensity of the staff is greatly reduced, the problem that the automatic degree of the discharging device of the coal selecting flotation machine is lower in the prior art is solved, and the automatic degree of the weighing and discharging device is improved.

It will be apparent that the embodiments described above are merely some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. A weighing and blanking device, characterized by comprising:

a frame (10);

the storage assembly (20) comprises at least two storage structures (21), each storage structure (21) is provided with a first feeding hole, a storage cavity (212) and a first discharging hole, and the first feeding hole is communicated with the first discharging hole through the storage cavity (212); wherein the storage cavities (212) of at least one of said storage structures (21) are for storing pulp and the storage cavities (212) of at least one other of said storage structures (21) are for storing medicament;

the blanking structure (30) is arranged on the frame (10), the blanking structure (30) is provided with an inlet (31) and an outlet (32), the inlet (31) is selectively communicated with the first discharging holes of all the storage structures (21), and the outlet (32) is used for blanking;

a weighing device (40) arranged on the blanking structure (30) for weighing the ore pulp and/or the medicament entering the blanking structure (30);

wherein a first discharge port of at least one storage structure (21) is opened so that one of the ore pulp and the medicament in the storage assembly (20) is discharged into the discharging structure (30) through the first discharge port, when a weighing value of a weighing device (40) is greater than or equal to a first preset weight value, the first discharge port which is discharging is closed, a first discharge port of at least one other storage structure (21) is opened so that the other one of the ore pulp and the medicament in the storage assembly (20) is discharged into the discharging structure (30) through the first discharge port, and when the weighing value of the weighing device (40) is greater than or equal to a second preset weight value, the first discharge port which is discharging is closed and the outlet (32) is opened so as to perform discharging; the first preset weight value is smaller than the second preset weight value.

2. The weighing and blanking apparatus of claim 1 further comprising:

the pipeline (50) comprises a main pipeline (51) and at least two branch pipelines (52), at least two branch pipelines (52) are arranged in one-to-one correspondence with at least two storage structures (21), a first end of the main pipeline (51) is communicated with the inlet (31), a second end of the main pipeline (51) is communicated with a first end of each branch pipeline (52), and a second end of each branch pipeline (52) is communicated with a first discharge port of the corresponding storage structure (21);

at least two first control valves, at least two first control valves are arranged in one-to-one correspondence with at least two branch pipelines (52), and each first control valve is used for controlling the on-off state of the corresponding branch pipeline (52);

and the control module is connected with at least two first control valves and the weighing device (40).

3. The weighing and blanking device according to claim 1, characterized in that the frame (10) comprises a frame body (11) and a carrier plate (12), the carrier plate (12) being arranged on the frame body (11) below the storage assembly (20), the carrier plate (12) having an avoidance hole, the weighing device (40) being a weight sensor; the blanking structure (30) comprises:

-a blanking funnel (33) having said inlet (31) and said outlet (32);

the transition contact structure (34) is arranged on the outer peripheral surface of the blanking funnel (33);

the weight sensor is arranged on the bearing plate (12), and at least part of the blanking funnel (33) extends into the avoidance hole so that the transition contact structure (34) is in pressure connection with the weight sensor.

4. A weighing and blanking apparatus as claimed in claim 3, wherein,

the number of the transition contact structures (34) is one, one transition contact structure (34) is annular, the number of the weight sensors is multiple, and the weight sensors are arranged at intervals along the extending direction of the transition contact structure (34); or alternatively, the process may be performed,

the transition contact structure (34) is a plurality of, a plurality of transition contact structures (34) are arranged at intervals along the circumference of the blanking funnel (33), the weight sensor is a plurality of, and a plurality of weight sensors and a plurality of transition contact structures (34) are arranged in a one-to-one correspondence.

5. A weighing and blanking device according to claim 3, characterized in that the blanking structure (30) further comprises a blanking pipe (35), which blanking pipe (35) is arranged at the outlet (32) and communicates with the outlet (32); the blanking pipe (35) is provided with a second control valve, and the second control valve is used for controlling the on-off state of the blanking pipe (35).

6. The weighing and blanking device according to claim 5, characterized in that the blanking tube (35) is rotatably connected with the blanking funnel (33);

the blanking pipe (35) comprises a first pipe section (351), a second pipe section (352) and a third pipe section (353) which are connected in sequence; wherein, second pipeline section (352) with be the setting of first contained angle between first pipeline section (351), third pipeline section (353) with be the setting of second contained angle between second pipeline section (352).

7. The weighing and blanking apparatus of claim 6 wherein the outlet (32) is a circular aperture, the weighing and blanking apparatus further including a connecting assembly (36), the connecting assembly (36) including:

a mounting structure (361) provided on an end of the hopper (33) having the outlet (32), the mounting structure (361) having a mounting cavity communicating with the outlet (32);

a bearing (362) disposed within the mounting cavity, an outer race of the bearing (362) being connected to a cavity wall of the mounting cavity;

at least part of the first pipe section (351) is arranged in the inner ring of the bearing (362) in a penetrating way and is connected with the inner ring, one end of the first pipe section (351) far away from the second pipe section (352) is a connecting end, and the connecting end penetrates through the inner ring and then stretches into the outlet (32); the outer peripheral surface of the connecting end is provided with a stop protruding edge, and the stop protruding edge is used for limiting and stopping the inner surface of the blanking funnel (33) so that the blanking pipe (35) is rotatably connected with the blanking funnel (33).

8. The weighing and blanking device according to claim 1, characterized in that the storage assembly (20) comprises:

a tubular body (22);

a partition plate (23), wherein the partition plate (23) is arranged in the cylindrical body (22), and the storage structure (21) is formed by surrounding the plate surface of the partition plate (23) and at least part of the inner wall of the cylindrical body (22); wherein the number of the partition boards (23) is one; alternatively, the number of the partition plates (23) is plural, and the plurality of the partition plates (23) are arranged at intervals around the central axis of the cylindrical body (22).

9. Feeding equipment, characterized in that, feeding equipment includes weighing unloader (100) and material feeding unit (200), material feeding unit (200) include:

the device comprises a shell (210), wherein the shell (210) is provided with a second feeding hole (201), a feeding cavity (202) and a second discharging hole (203), and the second feeding hole (201) is communicated with the second discharging hole (203) through the feeding cavity (202);

an auger (230), wherein the auger (230) is rotatably arranged in the feeding cavity (202) and is used for stirring and conveying ore pulp and/or medicament entering the feeding cavity (202);

the driving device (220) is in driving connection with the auger (230) so as to drive the auger (230) to rotate;

wherein the second feeding port (201) is communicated with an outlet (32) of a discharging structure (30) of the weighing and discharging device (100), and the weighing and discharging device (100) is a weighing and discharging device according to any one of claims 1 to 8.

10. A flotation machine, characterized in that it comprises a flotation machine body and a feeding device, which is a feeding device according to claim 9.

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