Mine filling slurry automatic proportioning system based on internet of things
An automatic mixing system that combines IoT technology with weight measurement and concentration sensors has solved the problem of inaccurate slurry mixing, achieving both precision in slurry mixing and ease of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHENGONG ENVIRONMENTAL TECH CO LTD
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-10
AI Technical Summary
Existing grout mixing devices cannot accurately prepare the required proportions for grouting, causing core indicators such as grout strength and setting time to deviate from design standards.
An automatic proportioning system for mine filling slurry based on the Internet of Things (IoT) is adopted, which includes a silo, belt conveyor, stirring device, weight measurement sensor, electromagnetic induction switch, concentration sensor and programmable controller. The system achieves accurate proportioning of slurry through IoT technology.
It improves the accuracy of slurry proportioning, has a simple structure, is easy to operate, and facilitates maintenance and replacement of parts.
Smart Images
Figure CN224474941U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of green mining technology in coal mines, and in particular relates to an automatic proportioning system for mine filling slurry based on the Internet of Things. Background Technology
[0002] Currently, the trend of intelligent and unmanned equipment is rapidly penetrating various industries. However, due to the special operating conditions and complex environment of equipment in the coal mining sector, most equipment still follows the traditional model of "mechanical structure as the main component and electrical control as the auxiliary component." As green coal mining upgrades towards "precision and energy saving," intelligent and lightweight technologies have become an inevitable requirement—taking the slurry mixing system in backfilling mining as an example, it has gradually transformed from the early simple manual weighing to automation and intelligence.
[0003] The mixing ratio of grout is a core aspect of mine backfilling: the grout's fluidity, initial setting time, and compressive strength after solidification directly determine the success or failure of the grouting operation. Therefore, the materials must be mixed strictly according to the ratio determined by experiments. However, existing grout mixing devices rely solely on simple weighing and flow sensors, which not only fail to accurately prepare the required grout ratio but also directly cause core indicators such as grout strength and setting time to deviate from design standards. Utility Model Content
[0004] To address the technical problems of existing slurry proportioning devices being unable to accurately prepare the required proportion of slurry for grouting, and the core indicators such as slurry strength and setting time deviating from design standards, this invention proposes an automatic proportioning system for mine filling slurry based on the Internet of Things.
[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: an automatic proportioning system for mining filling slurry based on the Internet of Things, including a silo, a belt conveyor and a mixing device, wherein a transmission wheel support is provided on the first support of the belt conveyor, and a weight measuring sensor is also provided on the first support.
[0006] The transmission wheel bracket is rotatably connected to a transmission belt via the transmission wheel. One end of the transmission belt is engaged with the discharge port of the hopper. An automatic feeding valve is installed between the transmission belt and the discharge port of the hopper. The other end of the transmission belt is engaged with the inlet of the mixing device.
[0007] The conveyor belt is equipped with a first sensor and a second sensor, which are located on the upper and lower layers of the conveyor belt, respectively.
[0008] The transmission wheel bracket is equipped with a first electromagnetic induction switch and a second electromagnetic induction switch. The first electromagnetic induction switch cooperates with the first sensing element, and the second electromagnetic induction switch cooperates with the second sensing element.
[0009] The stirring device is equipped with a concentration sensor. A water pump is connected to the stirring device via a water supply pipe, and a flow meter is installed on the water supply pipe. A regulating valve is installed at the output port of the water pump, and a flow sensor is installed between the pump's output port and the regulating valve.
[0010] The weight measurement sensor, automatic feeding valve, first electromagnetic induction switch, second electromagnetic induction switch, concentration sensor, water pump, regulating valve, flow sensor and mixer are all electrically connected to the control element. The control element is electrically connected to a communication module, which communicates with the terminal device through a cloud server.
[0011] Furthermore, the first and second sensing elements are made of metal conductors.
[0012] Furthermore, the first and second sensors are located at opposite edges on the conveyor belt.
[0013] Furthermore, the control element is a programmable controller.
[0014] Furthermore, the belt conveyor is also equipped with an infrared sensor, which corresponds to the conveyor belt and is electrically connected to the control element.
[0015] The advantages of this utility model over the prior art are as follows:
[0016] 1. This utility model can effectively improve the accuracy of slurry proportioning by working together with a weight measuring sensor, an automatic feeding valve, a first electromagnetic induction switch, a second electromagnetic induction switch, a concentration sensor, a water pump, a regulating valve, a flow sensor, a mixer, and control components.
[0017] 2. This utility model has a simple structure, is easy to operate, and is convenient to maintain and replace corresponding parts. Attached Figure Description
[0018] The present invention will be further described below with reference to the accompanying drawings:
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a schematic diagram showing the relative positional relationship between the first sensing element and the second sensing element of this utility model;
[0021] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the middle;
[0022] Figure 4 This is a schematic diagram of the control logic of this utility model;
[0023] In the diagram: 1 is the hopper, 2 is the stirring device, 3 is the transmission wheel support, 4 is the first support, 5 is the automatic feeding valve, 6 is the conveyor belt, 7 is the first sensor, 8 is the second sensor, 9 is the first electromagnetic induction switch, 10 is the concentration sensor, 11 is the regulating valve, 12 is the water supply pipe, and 13 is the second electromagnetic induction switch. Detailed Implementation
[0024] In this utility model, unless otherwise stated, directional terms such as "upper," "lower," "top," and "bottom" are generally used in relation to the direction shown in the accompanying drawings, or in relation to the vertical, perpendicular, or gravitational direction of the component itself; similarly, for ease of understanding and description, "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.
[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0026] like Figures 1 to 4 As shown, this utility model provides an automatic proportioning system for mining filling slurry based on the Internet of Things, including a silo 1, a belt conveyor and a mixing device 2. The silo 1 is used to place the solid material to be mixed. A transmission wheel support 3 is fixedly connected to the first support 4 of the belt conveyor. A weight measuring sensor is also fixedly connected to the first support 4 to measure the weight of the solid material on the conveyor belt 6.
[0027] The transmission wheel bracket 3 is connected to the transmission belt 6 via the transmission wheel rotation. One end of the transmission belt 6 is engaged with the discharge port of the hopper 1. An automatic feeding valve 5 is fixedly connected between the transmission belt 6 and the discharge port of the hopper 1. The other end of the transmission belt 6 is engaged with the inlet of the mixing device 2. The transmission belt 6, the hopper 1 and the mixing device 2 work together to transport the solid material in the hopper 1 to the mixing device 2.
[0028] A first sensor 7 and a second sensor 8 are fixedly connected to the conveyor belt 6. The second sensor 8 and the first sensor 7 are located on the upper and lower layers of the conveyor belt 6, respectively. When the conveyor belt 6 is unfurled along its width at the location of the first sensor 7, the second sensor 8 is positioned at the middle of the length of the conveyor belt 6, and the first sensor 7 and the second sensor 8 are located at opposite edges of the conveyor belt 6. In this embodiment, the first sensor 7 and the second sensor 8 are made of conductive metals such as iron, steel, copper, and aluminum.
[0029] A first electromagnetic induction switch 9 and a second electromagnetic induction switch 13 are fixedly connected to the transmission wheel bracket 3. The first electromagnetic induction switch 9 and the second electromagnetic induction switch 13 are located on the side of the hopper 1. The first electromagnetic induction switch 9 cooperates with the first sensing element 7, and the second electromagnetic induction switch 13 cooperates with the second sensing element 8.
[0030] A concentration sensor 10 is fixedly connected inside the mixing device 2 to detect the concentration of the slurry inside the mixing device 2. A water pump is fixedly connected to the mixing device 2 via a water supply pipe 12. A flow meter is fixedly connected to the water supply pipe 12. A regulating valve 11 is fixedly connected to the output port of the water pump. A flow sensor is fixedly connected between the output port of the water pump and the regulating valve 11 to detect the amount of water input into the mixing device 2.
[0031] The weight measurement sensor, automatic feeding valve 5, first electromagnetic induction switch 9, second electromagnetic induction switch 13, concentration sensor 10, water pump, regulating valve 11, flow sensor, and mixer are all electrically connected to the control element, which is a programmable logic controller (PLC). Communication between the control element and the weight measurement sensor, automatic feeding valve 5, first electromagnetic induction switch 9, second electromagnetic induction switch 13, concentration sensor 10, water pump, regulating valve 11, flow sensor, and mixer uses the MODBUS RTU protocol. The control element is electrically connected to a communication module, which is a 5G communication module. The communication module communicates with a cloud server to a terminal device for remote monitoring and control. In this embodiment, the terminal device is a mobile phone or a host computer.
[0032] An infrared sensor is also fixedly connected to the belt conveyor. The infrared sensor corresponds to the conveyor belt 6 and is electrically connected to the control element to detect the number of cycles of the conveyor belt 6.
[0033] The weight measurement sensor, the first electromagnetic induction switch 9, the second electromagnetic induction switch 13, the concentration sensor 10, and the flow sensor can all be purchased. No specific restrictions are placed on the model here. Those skilled in the art can purchase the appropriate model according to the specific construction conditions.
[0034] The working principle of this utility model:
[0035] Preparation for use: Close the automatic feeding valve 5, regulating valve 11 and water pump, start the belt conveyor, so that the first sensing element 7 on the conveyor belt 6 corresponds to the first electromagnetic induction switch 9. At this time, the first sensing element 7 is located on the upper belt, triggering the first electromagnetic induction switch 9 to act, and transmitting the signal to the control element. The control element controls the conveyor belt 6 to stop running and resets the weight measurement sensor to zero.
[0036] In operation, the conveyor belt is started. When the second sensor 8 on the conveyor belt 6 approaches the second electromagnetic induction switch 13, the second electromagnetic induction switch 13 is triggered. The second electromagnetic induction switch 13 transmits the signal to the control element. The control element controls the conveyor belt to stop running, controls the automatic feeding valve 5 to close, and collects the first weight data of the solid material on the conveyor belt 6 detected by the weight detection sensor at this time. Then, the conveyor belt is started again and the automatic feeding valve 5 is opened. The solid material accumulated on the upper conveyor belt is transported to the stirring device 2. When the first sensor 7 approaches the first electromagnetic induction switch 9, the first electromagnetic induction switch 9 is triggered. The first electromagnetic induction switch 9 transmits the signal to the control element. The control element controls the conveyor belt to stop running, controls the automatic feeding valve 5 to close, and collects the second weight data of the solid material on the conveyor belt 6 detected by the weight detection sensor at this time. Then, the conveyor belt is started again and the automatic feeding valve 5 is opened. This cycle is repeated multiple times until the sum of the first weight data and the second weight data reaches the desired weight value preset in the control element. Then, the conveyor belt is stopped and the automatic feeding valve 5 is closed to end the cycle.
[0037] The control element has a preset ratio (coal gangue: curing agent: water = 1:1:1, and the curing agent can be selected according to actual needs). In this embodiment, cement is used. The control element obtains the required water volume value according to the ratio value, then starts the water pump, opens the regulating valve 11, and the flow meter collects the cumulative water volume injected into the mixing device 2 in real time and uploads the data to the control element. The control element controls the opening of the regulating valve 11 according to the required water volume value. When the flow meter detects that the cumulative water volume injected into the mixing device 2 has reached the required water volume value, it transmits the signal to the control element. The control element controls the closing of the regulating valve 11 and starts the mixing device 2. After the solid material and water are mixed in the mixing device 2, a slurry is formed. The concentration sensor 10 uploads the detected slurry concentration to the control element. When the slurry concentration value detected by the concentration sensor 10 reaches the preset concentration value, the mixing device 2 is turned off.
[0038] Regarding the specific structure of this utility model, it should be noted that the connection relationships between the various component modules adopted in this utility model are definite and achievable. Except as specifically described in the embodiments, their specific connection relationships can bring about corresponding technical effects and solve the technical problems proposed by this utility model without relying on the execution of corresponding software programs. The models of the components, modules, and specific components appearing in this utility model, the connection methods between them, and the conventional usage methods and expected technical effects brought about by the above-mentioned technical features, unless specifically described, are all publicly disclosed content in patents, journal articles, technical manuals, technical dictionaries, and textbooks that can be obtained by those skilled in the art before the application date, or belong to conventional technology, common knowledge, and other existing technologies in this field. There is no need to elaborate, which makes the technical solution provided in this case clear, complete, and achievable, and can reproduce or obtain corresponding physical products based on this technical means.
[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. An automatic proportioning system for mine filling slurry based on the Internet of Things, characterized in that: It includes a hopper (1), a belt conveyor and a mixing device (2). A transmission wheel support (3) is provided on the first support (4) of the belt conveyor, and a weight measuring sensor is also provided on the first support (4). The transmission wheel bracket (3) is connected to the transmission belt (6) via the transmission wheel rotation. One end of the transmission belt (6) is engaged with the discharge port of the silo (1). An automatic feeding valve (5) is provided between the transmission belt (6) and the discharge port of the silo (1). The other end of the transmission belt (6) is engaged with the feed port of the stirring device (2). The conveyor belt (6) is provided with a first sensor (7) and a second sensor (8), and the second sensor (8) and the first sensor (7) are located on the upper belt and the lower belt of the conveyor belt (6), respectively. The transmission wheel bracket (3) is provided with a first electromagnetic induction switch (9) and a second electromagnetic induction switch (13). The first electromagnetic induction switch (9) cooperates with the first sensing element (7), and the second electromagnetic induction switch (13) cooperates with the second sensing element (8). The stirring device (2) is equipped with a concentration sensor (10). The stirring device (2) is connected to a water pump through a water supply pipe (12). A flow meter is installed on the water supply pipe (12). A regulating valve (11) is installed at the output port of the water pump. A flow sensor is installed between the output port of the water pump and the regulating valve (11). The weight measurement sensor, automatic feeding valve (5), first electromagnetic induction switch (9), second electromagnetic induction switch (13), concentration sensor (10), water pump, regulating valve (11), flow sensor and mixer are all electrically connected to the control element. The control element is electrically connected to a communication module, which is connected to the terminal device through a cloud server.
2. The automatic proportioning system for mine filling slurry based on the Internet of Things as described in claim 1, characterized in that: The first sensing element (7) and the second sensing element (8) are made of metal conductors.
3. The automatic proportioning system for mine filling slurry based on the Internet of Things as described in claim 1, characterized in that: The first sensor (7) and the second sensor (8) are located at two opposite edges on the conveyor belt (6).
4. The automatic proportioning system for mine filling slurry based on the Internet of Things as described in claim 1, characterized in that: The control element is a programmable controller.
5. The automatic proportioning system for mine filling slurry based on the Internet of Things according to claim 1, characterized in that: The belt conveyor is also equipped with an infrared sensor, which corresponds to the conveyor belt (6) and is electrically connected to the control element.