Mining belt weigher

Abstract

The utility model provides a mining belt weigher, and relates to the technical field of mining. The mining belt weigher comprises a belt conveyor and a measuring device, the belt conveyor comprises a rack, a conveying belt and a carrier roller, the conveying belt and the carrier roller are installed on the rack, the conveying belt is used for conveying materials, and the carrier roller is located at the bottom of the conveying belt and used for supporting the conveying belt and the materials on the conveying belt; the measuring device comprises a plurality of electronic tags and a weighing sensor, the electronic tags are arranged on the conveying belt at intervals in the length direction of the conveying belt, the electronic tags are used for recording zero point information of the conveying belt area where the electronic tags are located, and the weighing sensor is arranged at the carrier roller. The weighing sensor is configured to take zero point information recorded in the electronic tag as a weighing zero point, and materials in the conveying belt above the weighing sensor are weighed. The utility model provides a mining belt weigher, which can improve the weighing accuracy.

Description

Technical Field

[0001] The utility model relates to the technical field of mining, in particular to a belt scale for mines. Background Art

[0002] With the popularization of the construction of intelligent mines and the improvement of the measurement management level of coal mines, more and more coal mines use electronic belt scales to measure the mining output.

[0003] In the prior art, the change of the tension of the conveyor belt, the wear condition and the amount of surface attachments will all affect the weighing accuracy of the electronic belt scale.

[0004] Therefore, how to improve the weighing accuracy of the electronic belt scale is a technical problem that needs to be solved by those skilled in the art. Content of the Utility Model

[0005] In order to solve at least one problem mentioned in the background art, the utility model provides a belt scale for mines, which can improve the weighing accuracy.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model provides a belt scale for mines, including a belt conveyor and a measuring device. The belt conveyor includes a frame, a conveyor belt and idlers. The conveyor belt and the idlers are installed on the frame. The conveyor belt is used for transporting materials. The idlers are located at the bottom of the conveyor belt and are used for supporting the conveyor belt and the materials on the conveyor belt.

[0008] The measuring device includes electronic tags and weighing sensors. There are multiple electronic tags, and the multiple electronic tags are arranged at intervals along the length direction of the conveyor belt on the conveyor belt. The electronic tags are used to record the zero point information of the conveyor belt area where they are located. The weighing sensors are arranged at the idlers. The weighing sensors are respectively configured to use the zero point information recorded in the electronic tags as the weighing zero point to weigh the materials in the conveyor belt above the weighing sensors.

[0009] As an optional implementation manner, the conveyor belt has installation grooves, and the electronic tags are arranged in the installation grooves.

[0010] As an optional implementation manner, the belt conveyor further includes a filling member, and the filling member covers the installation grooves, and the electronic tags are clamped between the bottom of the installation grooves and the filling member.

[0011] As an optional implementation manner, the filling member is flush with the surface of the conveyor belt.

[0012] As an optional implementation manner, both the electronic tags and the filling member are connected to the conveyor belt by means of adhesion.

[0013] As an alternative implementation, the installation groove is located on the side of the conveyor belt.

[0014] As an alternative implementation, the depth of the installation groove is less than half of the thickness of the conveyor belt.

[0015] As an alternative implementation, the distance between two adjacent electronic tags is 50m - 100m.

[0016] As an alternative implementation, the measuring device further includes a card reader and a controller. The electronic tag, the weighing sensor, and the card reader are all electrically connected to the controller. The controller is configured to control the card reader to read the zero point information recorded in the electronic tag, and control the weighing sensor to weigh the material on the conveyor belt according to the zero point information.

[0017] As an alternative implementation, the measuring device further includes a display. The display is electrically connected to the controller, and the display is configured to display the mass of the material transported by the conveyor belt in real time.

[0018] The mine belt scale provided by the present utility model includes a belt conveyor and a measuring device. The belt conveyor includes a frame, a conveyor belt, and rollers. The conveyor belt and the rollers are installed on the frame. The conveyor belt is used to transport materials. The rollers are located at the bottom of the conveyor belt and are configured to support the conveyor belt and the materials on the conveyor belt. The measuring device includes an electronic tag and a weighing sensor. There are multiple electronic tags, and the multiple electronic tags are arranged at intervals along the length direction of the conveyor belt on the conveyor belt. The electronic tag is configured to record the zero point information of the conveyor belt area where it is located. The weighing sensor is arranged at the roller. The weighing sensor is configured to use the zero point information recorded in the electronic tag as the weighing zero point to weigh the material in the conveyor belt above the weighing sensor. The mine belt scale provided by the present utility model can divide the entire conveyor belt into multiple sections through multiple spaced electronic tags on the conveyor belt. Each electronic tag can record the zero point information when the conveyor belt in the corresponding section is weighed. When the conveyor belt in this section runs above the weighing sensor, the weighing sensor uses the zero point information in the electronic tag of this section as the zero point value during weighing. In this way, the influence of factors such as the tension, wear, and surface attachments of the conveyor belt on the weighing zero point value can be greatly reduced, thereby improving the weighing accuracy of the belt scale. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 Schematic diagram of the overall structure of the belt scale for mine use provided by the embodiment of the present utility model;

[0021] Figure 2 Schematic diagram of the installation of the electronic tag in the belt scale for mine use provided by the embodiment of the present utility model.

[0022] Explanation of the reference numerals in the drawings:

[0023] 100 - Belt scale;

[0024] 110 - Belt conveyor;

[0025] 111 - Frame;

[0026] 112 - Conveyor belt;

[0027] 1121 - Installation groove;

[0028] 1122 - Filling piece;

[0029] 113 - Idler;

[0030] 120 - Measuring device;

[0031] 121 - Electronic tag;

[0032] 122 - Weighing sensor;

[0033] 123 - Card reader;

[0034] 124 - Controller;

[0035] 125 - Display. Specific embodiments

[0036] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0037] In the application, the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc. is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present utility model and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation.

[0038] Moreover, in addition to being used to indicate orientation or positional relationship, some of the above terms may also have other meanings. For example, the term "upper" may also be used to indicate a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the present utility model can be understood according to specific circumstances.

[0039] In addition, the terms "installed", "set up", "provided with", "connected", and "linked" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, components, or parts. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0040] In addition, terms such as "first", "second", etc. are mainly used to distinguish different devices, components, or parts (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, components, or parts. Unless otherwise specified, the meaning of "a plurality" is two or more.

[0041] Currently, for the zero point of an existing electronic belt scale, the signal average value of the entire conveyor belt circle is mostly used as the measurement zero point, that is, the signal average value measured when the belt rotates a full circle is used as the measurement zero point of the belt scale. This method is applicable to working conditions with new conveyor belts, small signal changes, and good zero point consistency. However, in actual coal mine operations, in order to reduce dust, water mist is sprayed on the conveyor belt to increase the humidity of the raw coal, which will cause coal powder adhesion on the conveyor belt and change the measurement zero point. Secondly, the different wear degrees of different parts of the conveyor belt will also affect the measurement zero point. In addition, as the conveyor moves forward with the advancement of the working face, the tension of the conveyor belt changes, which also causes the measurement zero point to change, resulting in inaccurate weighing of the electronic belt scale.

[0042] In view of this, the present utility model provides a mine belt scale 100, which includes a belt conveyor 110 and a measuring device 120. The belt conveyor 110 includes a frame 111, a conveyor belt 112 and idler rollers 113. The conveyor belt 112 and the idler rollers 113 are installed on the frame 111. The conveyor belt 112 is used for transporting materials, and the idler rollers 113 are located at the bottom of the conveyor belt 112 and are used to support the conveyor belt 112 and the materials on the conveyor belt 112. The measuring device 120 includes an electronic tag 121 and a weighing sensor 122. There are multiple electronic tags 121, and the multiple electronic tags 121 are arranged at intervals along the length direction of the conveyor belt 112 on the conveyor belt 112. The electronic tag 121 is used to record the zero point information of the area of the conveyor belt 112 where it is located, and the weighing sensor 122 is arranged at the idler roller 113. By each electronic tag 121, the entire conveyor belt 112 is divided into multiple sections. The zero point information when the conveyor belt 112 in the section where each electronic tag 121 is located is weighed can be recorded in each electronic tag 121. When the conveyor belt 112 in this section runs above the weighing sensor 122, the weighing sensor 122 uses the zero point information in the electronic tag 121 of this section as the zero point value when weighing, which can greatly reduce the influence of factors such as the tension, wear and surface attachments of the conveyor belt 112 on the weighing zero point value, thereby improving the weighing accuracy of the belt scale 100.

[0043] Figure 1 It is a schematic diagram of the overall structure of the mine belt scale provided by the embodiment of the present utility model; Figure 2 It is a schematic diagram of the installation of the electronic tag in the mine belt scale provided by the embodiment of the present utility model.

[0044] Reference can be made to Figure 1 and Figure 2 In the embodiment of the present utility model, a mine belt scale 100 is provided, which includes a belt conveyor 110 and a measuring device 120. The belt conveyor 110 includes a frame 111, a conveyor belt 112 and idler rollers 113. The conveyor belt 112 and the idler rollers 113 are installed on the frame 111. The conveyor belt 112 is used for transporting materials, and the idler rollers 113 are located at the bottom of the conveyor belt 112 and are used to support the conveyor belt 112 and the materials on the conveyor belt 112. The measuring device 120 includes an electronic tag 121 and a weighing sensor 122. There are multiple electronic tags 121, and the multiple electronic tags 121 are arranged at intervals along the length direction of the conveyor belt 112 on the conveyor belt 112. The electronic tag 121 is used to record the zero point information of the area of the conveyor belt 112 where it is located, and the weighing sensor 122 is arranged at the idler roller 113. The weighing sensor 122 is configured to use the zero point information recorded in the electronic tag 121 as the weighing zero point to weigh the materials in the conveyor belt 112 above the weighing sensor 122.

[0045] It can be understood that in the prior art, the average value measured by the belt rotating a full circle is used as the metering zero point of the belt scale 100. This method cannot reflect the zero point difference at different positions on the conveyor belt 112, resulting in an inaccurate zero point used for measurement. The belt scale 100 of the present utility model individually marks the zero point values of each section of the conveyor belt 112 through the electronic tag 121, and the marked zero point values are more accurate, thereby improving the overall weighing accuracy of the belt scale 100.

[0046] It should be noted that different numbers of electronic tags 121 can be set at different positions on the conveyor belt 112. For example, if the zero point value changes significantly in some sections of the conveyor belt 112, more electronic tags 121 can be set in this section to more accurately reflect the zero point values at different positions on the conveyor belt 112; these electronic tags 121 can specifically be radio frequency identification electronic tags 121 or other forms of electronic tags 121. Each electronic tag 121 has a unique identification code and a memory for storing the position address and signal zero point value of this area. And the signal zero point values of the position areas of each electronic tag 121 can be updated and calibrated regularly, and these values are recorded in the corresponding electronic tag 121 to further improve the accuracy of the zero point value. During the operation of the conveyor belt 112, the actual weight of the material on each section of the conveyor belt 112 can be calculated by reading the identification code and zero point value of the electronic tag 121 and combining the signal value measured by the current weighing sensor 122.

[0047] The mine belt scale 100 provided by the embodiment of the present utility model can divide the entire conveyor belt 112 into multiple sections through the electronic tags 121 arranged at intervals on the conveyor belt 112. The zero point information when the conveyor belt 112 of each section is weighed can be recorded in each electronic tag 121. When the conveyor belt 112 of this section runs above the weighing sensor 122, the weighing sensor 122 uses the zero point information in the electronic tag 121 of this section as the zero point value during weighing. In this way, the influence of factors such as the tension, wear, and surface attachments of the conveyor belt 112 on the weighing zero point value can be greatly reduced, thereby improving the weighing accuracy of the belt scale 100.

[0048] In the above embodiment, an installation groove 1121 can be provided on the conveyor belt 112, and the electronic tag 121 is arranged in the installation groove 1121. In this way, the set electronic tag 121 will not interfere with the operation of the conveyor belt 112, and the material transported by the conveyor belt 112 is not likely to damage the electronic tag 121, thereby improving the service life of the electronic tag 121.

[0049] In the above embodiment, the belt conveyor 110 may further include a filling piece 1122. The filling piece 1122 covers the installation groove 1121. The electronic tag 121 is clamped between the bottom of the installation groove 1121 and the filling piece 1122. The filling piece 1122 can completely cover the electronic tag 121 to further prevent the material transported on the conveyor belt 112 from damaging the electronic tag 121. Specifically, the filling piece 1122 can be made of the same material as the conveyor belt 112, so that the installation groove 1121 can be better filled.

[0050] In the above embodiment, the filling piece 1122 can be flush with the surface of the conveyor belt 112 , so as to make the surface of the conveyor belt 112 smooth and further avoid affecting the operation of the conveyor belt 112 .

[0051] In the above embodiment, the electronic tag 121 and the filler 1122 can be connected to the conveyor belt 112 by gluing. On the one hand, this connection method is more convenient. On the other hand, the gluing method can better seal the gap between the filler 1122 and the conveyor belt 112, further preventing the material on the conveyor belt 112 from contacting the electronic tag 121.

[0052] like Figure 2 As shown, in the above embodiment, the installation groove 1121 can be located on the side of the conveyor belt 112, and the electronic tag 121 is set on the side of the conveyor belt 112, which can avoid changes to the structure of the conveyor belt 112 as much as possible, thereby affecting the structural strength of the conveyor belt 112, and can further avoid contact between the material and the electronic tag 121, and also facilitate the installation and removal of the electronic tag 121.

[0053] In the above embodiment, the depth of the installation groove 1121 can be made less than half the thickness of the conveyor belt 112 . If the installation groove 1121 is too deep, it may have a significant impact on the structure of the conveyor belt 112 itself, thereby reducing the service life of the conveyor belt 112 .

[0054] In the above embodiment, the distance between two adjacent electronic tags 121 can be 50m-100m. If the distance between adjacent electronic tags 121 is too small, the number of electronic tags 121 will increase, increasing the cost. If the distance is too large, the accuracy of the zero point value will be reduced, thereby reducing the weighing accuracy of the belt scale 100.

[0055] In the above embodiments, the measuring device 120 further includes a card reader 123 and a controller 124. The electronic tag 121, the weighing sensor 122, and the card reader 123 are all electrically connected to the controller 124. The controller 124 is configured to control the card reader 123 to read the zero-point information recorded in the electronic tag 121, and control the weighing sensor 122 to weigh the materials on the conveyor belt 112 according to the zero-point information. At the same time, the controller 124 summarizes and calculates the mass measured by the weighing sensor 122, so as to obtain the instantaneous mass and total mass of the conveyed materials.

[0056] In the above embodiments, the measuring device 120 may further include a display 125. The display 125 is electrically connected to the controller 124. The display 125 is configured to display in real time the mass of the materials transported on the conveyor belt 112, so as to more intuitively observe the transportation volume of the materials.

[0057] To facilitate further understanding of the solution by those skilled in the art, the following continues with an example: Suppose the length of the conveyor belt 112 is 1 kilometer, and an electronic tag 121 is set every 50 meters. Each electronic tag 121 records the zero-point values of the conveyor belt 112 with a length of 25 meters on both the left and right sides of the electronic tag 121. Assume that the zero-point value recorded in one of the electronic tags 121 is the a value. Then when the 50-meter-long conveyor belt 112 represented by this electronic tag 121 runs above the weighing sensor 122, the zero point used for weighing by the weighing sensor 122 is the a value. When the conveyor belt 112 corresponding to the next electronic tag 121 passes above the weighing sensor 122, the corresponding zero-point value is used, and so on. Then, the masses weighed at each zero-point value are summarized, which is the total mass of the materials.

[0058] The mine belt scale 100 provided by the embodiment of the present utility model includes a belt conveyor 110 and a measuring device 120. The belt conveyor 110 includes a frame 111, a conveyor belt 112 and rollers 113. The conveyor belt 112 and the rollers 113 are installed on the frame 111. The conveyor belt 112 is used for transporting materials, and the rollers 113 are located at the bottom of the conveyor belt 112 and are used to support the conveyor belt 112 and the materials on the conveyor belt 112. The measuring device 120 includes an electronic tag 121 and a weighing sensor 122. There are multiple electronic tags 121, and the multiple electronic tags 121 are arranged at intervals along the length direction of the conveyor belt 112 on the conveyor belt 112. The electronic tag 121 is used to record the zero point information of the area of the conveyor belt 112 where it is located. The weighing sensor 122 is arranged at the roller 113, and the weighing sensor 122 is configured to use the zero point information recorded in the electronic tag 121 as the weighing zero point to weigh the materials in the conveyor belt 112 above the weighing sensor 122. By arranging multiple spaced electronic tags 121 on the conveyor belt 112, the mine belt scale 100 provided by the embodiment of the present utility model can divide the entire conveyor belt 112 into multiple sections through each electronic tag 121. Each electronic tag 121 can record the zero point information when the conveyor belt 112 in the section is weighed. When the conveyor belt 112 in this section runs above the weighing sensor 122, the weighing sensor 122 uses the zero point information in the electronic tag 121 of this section as the zero point value when weighing. In this way, the influence of factors such as the tension, wear and surface attachments of the conveyor belt 112 on the weighing zero point value can be greatly reduced, thereby improving the weighing accuracy of the belt scale 100.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model, rather than to limit them; although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A mining belt scale, characterized in that: It includes a belt conveyor and a measuring device, wherein the belt conveyor includes a frame, a conveyor belt and rollers, the conveyor belt and the rollers are installed on the frame, the conveyor belt is used to transport materials, and the rollers are located at the bottom of the conveyor belt and are used to support the conveyor belt and the materials on the conveyor belt; The measuring device includes an electronic tag and a weighing sensor. There are multiple electronic tags, and the multiple electronic tags are arranged on the conveyor belt at intervals along the length direction of the conveyor belt. The electronic tag is used to record the zero point information of the conveyor belt area where the electronic tag is located. The weighing sensor is arranged at the roller, and the weighing sensor is configured to use the zero point information recorded in the electronic tag as the weighing zero point to weigh the material in the conveyor belt above the weighing sensor.

2. The mining belt scale according to claim 1, characterized in that: The conveyor belt is provided with a mounting groove, and the electronic tag is arranged in the mounting groove.

3. The mining belt scale according to claim 2, characterized in that: The belt conveyor further comprises a filling piece, wherein the filling piece covers the installation groove, and the electronic tag is clamped between the bottom of the installation groove and the filling piece.

4. The mining belt scale according to claim 3, characterized in that: The filling piece is flush with the surface of the conveyor belt.

5. The mining belt scale according to claim 4, characterized in that: The electronic tag and the filler are both connected to the conveyor belt by gluing.

6. The mining belt scale according to claim 5, characterized in that: The mounting groove is located on the side of the conveyor belt.

7. The mining belt scale according to claim 6, characterized in that: The depth of the mounting groove is less than half of the thickness of the conveyor belt.

8. The mining belt scale according to any one of claims 1 to 7, characterized in that: The distance between two adjacent electronic tags is 50m-100m.

9. The mining belt scale according to any one of claims 1 to 7, characterized in that: The measuring device also includes a card reader and a controller. The electronic tag, the weighing sensor and the card reader are all electrically connected to the controller. The controller is used to control the card reader to read the zero point information recorded in the electronic tag, and control the weighing sensor to weigh the material in the conveyor belt according to the zero point information.

10. The mining belt scale according to claim 9, characterized in that: The measuring device also includes a display, which is electrically connected to the controller and is used to display the quality of the material transported by the conveyor belt in real time.

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