A method of feeding

Abstract

The application provides a material conveying method, comprising: obtaining the average material conveying amount per unit time of an upstream unloading conveying unit and corresponding downstream receiving conveying units; determining whether the average material conveying amount per unit time of the upstream unloading conveying unit is less than or equal to each downstream receiving conveying unit; if yes, adjusting the multi-pass material conveying device connected between the upstream unloading conveying unit and each downstream receiving conveying unit to a single-point conduction state; and adjusting the multi-pass material conveying device connected between the upstream unloading conveying unit and each downstream receiving conveying unit to a proportional distribution state. The state of the multi-pass material conveying device is determined according to the average material conveying amount of the upstream and downstream units, and then the multi-pass material conveying device is adjusted to the proportional distribution state only in necessary cases, thereby avoiding the problems of poor material conveying, slow adjustment speed and influence on conveying efficiency caused by the multi-pass material conveying device in the proportional distribution state frequently detecting, obtaining and adjusting the distribution proportion and the inner wall proportional distribution structure.

Description

Technical Field

[0001] This invention relates to the field of material conveying technology, and more specifically to a material conveying method. Background Technology

[0002] A transfer station is a transit point set up between the product's place of origin or concentration and its destination to reduce transportation costs during the cargo transportation process. It is widely used in various industries, such as ports, mines, power plants, and municipal solid waste treatment. For example, in the coal transportation of factories and mines, the transfer station can serve as the application site for the transfer facilities of the coal transportation system and is the connection point of the conveyor bridges at all levels.

[0003] Within a transfer station, there is a height difference between the unloading and receiving points of different levels of conveyors. Transfer equipment can be used to achieve operations such as step-by-step conveying, turning, and diverting of coal. As a type of transfer equipment, multi-channel material distribution equipment has the advantages of being easy to use and widely applicable. It can selectively connect and transfer different levels of conveyors point-to-point.

[0004] When different levels of conveyors have different conveying capacities, multi-channel material distribution equipment in a single-point conduction state is prone to causing overload or material leakage problems in the lower-level conveyors. Currently, by setting up alternative lower-level conveyors with high conveying capacity, or by setting up structures such as material distribution cones in the multi-channel material distribution equipment, proportional material distribution and simultaneous conveying of different lower-level conveyors can be achieved, thus avoiding overload or material leakage problems in the lower-level conveyors.

[0005] However, alternative high-capacity lower-level conveyors will increase system costs, while multi-pass material distribution equipment with structures such as material distribution cones will have problems such as poor material conveying, slow adjustment speed, and reduced conveying efficiency. Summary of the Invention

[0006] Therefore, the technical problem to be solved by the present invention is to overcome the shortcomings of the prior art, such as the increase in system cost due to the alternative high-capacity lower-level conveyor set up to avoid overload or material leakage of the lower-level conveyor, and the problems of poor material conveying, slow speed adjustment and reduced conveying efficiency of the multi-pass material distribution equipment with material distribution cones and other structures. Thus, a material conveying method is provided.

[0007] This invention provides a material conveying method, comprising: obtaining the average material conveying amount per unit time of an upstream unloading conveying unit and its corresponding downstream receiving conveying units; determining whether the average material conveying amount per unit time of the upstream unloading conveying unit is less than or equal to that of each downstream receiving conveying unit; if so, adjusting the multi-channel conveying device connecting the upstream unloading conveying unit and each downstream receiving conveying unit to a single-point conduction state; and adjusting the multi-channel conveying device connecting the upstream unloading conveying unit and each downstream receiving conveying unit to a proportional material distribution state.

[0008] The step "If no, adjust the multi-channel conveying device connecting the upstream unloading conveying unit and each downstream receiving conveying unit to a proportional material distribution state" includes: If no, identify the individual downstream receiving conveying units whose average material conveying volume per unit time is less than that of the upstream unloading conveying unit, define them as units to be adjusted, and define the individual downstream receiving conveying units whose average material conveying volume per unit time is greater than or equal to that of the upstream unloading conveying unit as direct conveying units; after obtaining the connection signal between the upstream unloading conveying unit and the unit to be adjusted, adjust the multi-channel conveying device connecting the upstream unloading conveying unit and each downstream receiving conveying unit to a proportional material distribution state; after obtaining the connection signal between the upstream unloading conveying unit and the direct conveying unit, adjust the multi-channel conveying device connecting the upstream unloading conveying unit and each downstream receiving conveying unit to a single-point conduction state.

[0009] The step "after obtaining the connection signal between the upstream unloading conveyor unit and the unit to be adjusted, adjust the multi-pass conveying device connecting the upstream unloading conveyor unit and each downstream receiving conveyor unit to a proportional material distribution state" includes: after obtaining the connection signal between the upstream unloading conveyor unit and the unit to be adjusted, obtain the difference in the average material conveying amount per unit time between the corresponding unit to be adjusted and the upstream unloading conveyor unit, which is defined as the first difference; obtain the unreceived units among the other downstream receiving conveyor units connected to the upstream unloading conveyor unit, other than the corresponding unit to be adjusted, which are defined as standby receiving conveyor units; adjust the multi-pass conveying device to a proportional material distribution state, wherein the multi-pass conveying device connects the upstream unloading conveyor unit, the corresponding unit to be adjusted, and at least one standby receiving conveyor unit, and adjust the material distribution ratio according to the first difference.

[0010] The step “connecting the multi-channel conveying device to the upstream unloading conveying unit, the corresponding unit to be adjusted, and at least one standby receiving conveying unit, and adjusting the material distribution ratio according to the first difference” includes: setting one of the standby receiving conveying units as the first standby unit; controlling the proportional material distribution structure in the multi-channel conveying device, adjusting the material receiving amount per unit time of the corresponding unit to be adjusted to its own average material receiving amount per unit time, and adjusting the material receiving amount per unit time of the first standby unit to the first difference; and connecting the multi-channel conveying device to the upstream unloading conveying unit, the corresponding unit to be adjusted, and the first standby unit.

[0011] An auxiliary multi-pass device is installed on the first backup unit, and the auxiliary multi-pass device is connected to the multi-pass conveying device of the upstream unloading and conveying unit.

[0012] The material conveying method also includes: obtaining the status of the multi-pass material conveying device on another upstream unloading conveying unit at the same height; when the status is the proportional material distribution status, controlling the multi-pass material conveying device on the other upstream unloading conveying unit to connect with the auxiliary multi-pass device of the first backup unit.

[0013] The upstream unloading conveying unit and / or the downstream receiving conveying unit are belt conveyors.

[0014] The upstream unloading conveyor unit is located above the downstream receiving conveyor unit.

[0015] The technical solution of this invention has the following advantages:

[0016] By configuring a multi-channel conveying device with both single-point conduction and proportional material distribution modes, and adjusting its state based on the average material conveying capacity per unit time of the upstream unloading conveying unit and the average material conveying capacity per unit time of each downstream receiving conveying unit, the device achieves two advantages. Firstly, when each downstream receiving conveying unit can handle the material from the upstream unloading conveying unit, the single-point conduction mode directly connects the upstream and downstream units, eliminating the need for material distribution and proportional adjustment, thus ensuring smooth material conveying. Secondly, when the upstream unloading conveying unit's single-point conduction mode is sufficient, the device can directly connect the upstream and downstream units without requiring material distribution or proportional adjustment. When the average material conveying capacity per unit time is greater than the average material conveying capacity per unit time of each downstream receiving and conveying unit, setting the multi-pass conveying device to a proportional material distribution state can effectively avoid overload or leakage problems in the downstream receiving and conveying units. Furthermore, the state of the multi-pass conveying device is determined based on the average material conveying capacity of the upstream and downstream units, and then the multi-pass conveying device is adjusted to a proportional material distribution state only when necessary. This avoids problems such as poor material conveying, slow adjustment speed, and reduced conveying efficiency caused by the multi-pass conveying device being in a proportional material distribution state for a long time frequently detecting and adjusting the material distribution ratio and adjusting the proportional material distribution structure of the inner wall. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the steps of the material feeding method provided in the embodiments of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of a material conveying system using a material conveying method, provided in an embodiment of the present invention;

[0020] Figure 3 for Figure 2 The diagram shows a side view of the material conveying system.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. First belt conveyor; 2. Second belt conveyor; 3. Third belt conveyor; 4. Fourth belt conveyor; 5. Fifth belt conveyor; 6. Sixth belt conveyor; 7. Multi-pass conveying device; 8. Auxiliary multi-pass device. Detailed Implementation

[0023] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention based on the specific circumstances.

[0026] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0027] like Figure 1 - Figure 3 This embodiment provides a material conveying method, including:

[0028] Obtain the average material conveying rate per unit time of the upstream unloading conveying unit and its corresponding downstream receiving conveying units;

[0029] Determine whether the average material conveying amount per unit time of the upstream unloading conveying unit is less than or equal to that of each downstream receiving conveying unit; if yes, adjust the multi-channel conveying device 7 connecting the upstream unloading conveying unit and each downstream receiving conveying unit to a single-point conduction state; if no, adjust the multi-channel conveying device 7 connecting the upstream unloading conveying unit and each downstream receiving conveying unit to a proportional material distribution state.

[0030] Specifically, both the upstream unloading conveyor unit and each downstream receiving conveyor unit are belt conveyors. As a possible implementation, one of the upstream unloading conveyor unit and each downstream receiving conveyor unit can also be a screw conveyor, roller conveyor, plate chain conveyor, mesh belt conveyor, or chain conveyor, etc. Furthermore, preferably, the upstream unloading conveyor unit is located above each downstream receiving conveyor unit along its height direction for easy material conveying. Simultaneously, the average material conveying capacity per unit time for each conveyor unit is specifically the rated average material conveying capacity per unit time, used to measure the conveying capacity of each conveyor unit. The average material conveying capacity per unit time for each conveyor unit can be obtained by setting up monitoring devices, such as sensors, or by querying the parameters of each conveyor unit.

[0031] Furthermore, multiple upstream unloading conveying units can be provided, and each upstream unloading conveying unit is correspondingly connected to several downstream receiving conveying units via a multi-pass conveying device 7. Further, to improve conveying efficiency, the downstream receiving conveying units can also be correspondingly connected to different upstream unloading conveying units. In this embodiment, the multi-pass conveying device 7 can be a four-way distributor or a three-way distributor. Preferably, the multi-pass conveying device 7 is an electrically controlled distributor, with a built-in proportional distributor structure and controller. Specifically, the proportional distributor structure can be a distributor cone assembly electrically connected to the controller.

[0032] like Figure 2 and Figure 3 As shown, in the material conveying system, the first belt conveyor 1, the second belt conveyor 2, and the third belt conveyor 3 are all upstream unloading conveying units. The fourth belt conveyor 4, the fifth belt conveyor 5, and the sixth belt conveyor 6 are all downstream receiving conveying units. The first belt conveyor 1 is connected to a four-way distributor, which can connect to the fourth belt conveyor 4, the fifth belt conveyor 5, and the sixth belt conveyor 6 respectively. The second belt conveyor 2 is also connected to a four-way distributor, which can connect to the fourth belt conveyor 4, the fifth belt conveyor 5, and the sixth belt conveyor 6 respectively. The third belt conveyor 3 is equipped with a three-way distributor, which can connect to the fourth belt conveyor 4 and the fifth belt conveyor 5 respectively.

[0033] By setting that the multi-pass material conveying device 7 has a single-point conduction state and a proportional material distribution state, and adjusting the state of the multi-pass material conveying device 7 according to the average material conveying amount per unit time of the upstream discharging conveying unit and the average material conveying amount per unit time of each downstream receiving conveying unit. With such a setting, on the one hand, when each downstream receiving conveying unit can carry the material from the upstream discharging conveying unit, through the multi-pass material conveying device 7 in the single-point conduction state, the upstream discharging conveying unit and the downstream receiving conveying unit are directly connected point-to-point without material distribution and proportional adjustment, ensuring smooth material conveying. On the other hand, when the average material conveying amount per unit time of the upstream discharging conveying unit is greater than the average material conveying amount per unit time of each downstream receiving conveying unit, by setting the multi-pass material conveying device 7 to change to the proportional material distribution state, the problem of overload or material leakage of the downstream receiving conveying unit can be effectively avoided. Further, determining the state of the multi-pass material conveying device 7 according to the average material conveying amounts of the upstream and downstream, and then adjusting the multi-pass material conveying device 7 to the proportional material distribution state only when necessary, can avoid problems such as unsmooth material conveying, slow adjustment speed, and influence on the conveying efficiency caused by the multi-pass material conveying device 7 in the proportional material distribution state for a long time frequently detecting and obtaining the adjustment of the material distribution ratio and adjusting the inner wall proportional material distribution structure.

[0034] In this embodiment, the step "If not, adjust the multi-pass material conveying device 7 connected between the upstream discharging conveying unit and each downstream receiving conveying unit to the proportional material distribution state" includes:

[0035] If not, obtain the individuals among each downstream receiving conveying unit whose average material conveying amount per unit time is less than that of the upstream discharging conveying unit, and define them as the units to be adjusted, and define the individuals among each downstream receiving conveying unit whose average material conveying amount per unit time is greater than or equal to that of the upstream discharging conveying unit as the direct conveying units. Such a setting can further subdivide each downstream receiving conveying unit, improve the control accuracy, and ensure the conveying efficiency. In addition, the receiving points are selected in the downstream receiving conveying unit according to the system requirements, that is, obtain the connection signal of one of the upstream discharging conveying unit and the unit to be adjusted;

[0036] After obtaining the connection signal between the upstream discharging conveying unit and the unit to be adjusted, adjust the multi-pass material conveying device 7 connected between the upstream discharging conveying unit and each downstream receiving conveying unit to the proportional material distribution state; after obtaining the connection signal between the upstream discharging conveying unit and the direct conveying unit, adjust the multi-pass material conveying device 7 connected between the upstream discharging conveying unit and each downstream receiving conveying unit to the single-point conduction state.

[0037] In this embodiment, the overall system includes a controller, specifically it can be a single-chip microcomputer, a PLC or a PC, etc., which are respectively communicatively connected with the upstream discharging conveying unit and each downstream receiving conveying unit, can obtain the connection signal between the upstream discharging conveying unit and the unit to be adjusted or the direct conveying unit, and adjust the state of the multi-pass material conveying device 7.

[0038] The above step "After obtaining the connection signal between the upstream unloading conveyor unit and the unit to be adjusted, adjust the multi-channel conveying device 7 connecting the upstream unloading conveyor unit and each downstream receiving conveyor unit to the proportional material distribution state" includes:

[0039] After obtaining the connection signal between the upstream unloading conveying unit and the unit to be adjusted, the difference in the average material conveying amount per unit time between the corresponding unit to be adjusted and the upstream unloading conveying unit is obtained and defined as the first difference. The unreceived units among the other downstream receiving conveying units connected to the upstream unloading conveying unit, other than the corresponding unit to be adjusted, are obtained and defined as standby receiving conveying units. The multi-pass conveying device 7 is adjusted to the proportional material distribution state. The multi-pass conveying device 7 connects the upstream unloading conveying unit, the corresponding unit to be adjusted, and at least one standby receiving conveying unit, and the material distribution ratio is adjusted according to the first difference.

[0040] Furthermore, the step "the multi-channel conveying device 7 connects the upstream unloading conveying unit, the corresponding unit to be adjusted, and at least one standby receiving conveying unit, and adjusts the material distribution ratio according to the first difference" includes:

[0041] One of the backup receiving and conveying units is set as the first backup unit. The first backup unit can be any one of the backup receiving and conveying units, or it can be selected as a variable implementation method according to the conveying path required by the system. In the multi-pass conveying device 7, the interface of the backup receiving and conveying unit with the smallest interface distance to the corresponding unit to be adjusted can be set as the first interface, and the backup receiving and conveying unit connected to the first interface can be set as the first backup unit. In this embodiment, the first backup unit is specifically the sixth belt conveyor 6. Preferably, the sixth belt conveyor 6 is set at the bottom of the system.

[0042] The proportional material distribution structure in the multi-pass material conveying device 7 is controlled to adjust the material receiving amount per unit time of the corresponding unit to be adjusted to its own average material conveying amount per unit time, and the material receiving amount per unit time of the first standby unit is adjusted to the first difference. As a variable implementation method, when the first difference is greater than the average material conveying amount per unit time of the first standby unit, the multi-pass material conveying device 7 connects multiple standby material receiving and conveying units.

[0043] A multi-channel conveying device 7 is set up to connect the upstream unloading conveying unit, the corresponding unit to be adjusted, and the first backup unit.

[0044] In this embodiment, an auxiliary multi-pass device 8 is provided on the first backup unit, and the auxiliary multi-pass device 8 is connected to the multi-pass conveying device 7 of the upstream unloading conveying unit. Specifically, in this embodiment, the auxiliary multi-pass device 8 is a reverse three-way conveying device, which can simultaneously receive materials from two upstream unloading conveying units. As an alternative implementation, the auxiliary multi-pass device 8 is a reverse multi-pass conveying device 7.

[0045] The material conveying method further includes: obtaining the status of the multi-pass conveying device 7 on another upstream unloading conveying unit at the same height; when the status is a proportional material distribution status, controlling the multi-pass conveying device 7 on the other upstream unloading conveying unit to connect with the auxiliary multi-pass device 8 of the first backup unit. In this embodiment, both the first belt conveyor 1 and the third belt conveyor 3 are connected to the sixth belt conveyor 6 through the multi-pass conveying device 7 and the auxiliary multi-pass device 8.

[0046] This configuration allows the first backup unit to carry excess material from multiple upstream material conveying units, avoiding the need for multiple downstream receiving and conveying units to transport excess material and reducing conveying costs.

[0047] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A material conveying method, characterized in that, include: Obtain the average material conveying rate per unit time of the upstream unloading conveying unit and its corresponding downstream receiving conveying units; Determine whether the average conveying volume per unit time of the upstream unloading conveying unit is less than or equal to that of each downstream receiving conveying unit; If so, adjust the multi-channel conveying device connecting the upstream unloading conveying unit and each downstream receiving conveying unit to a single-point conduction state; If not, identify the individual downstream receiving and conveying units whose average material conveying volume per unit time is less than that of the upstream unloading and conveying unit, define them as units to be adjusted, and define the individual downstream receiving and conveying units whose average material conveying volume per unit time is greater than or equal to that of the upstream unloading and conveying unit as direct conveying units. After obtaining the connection signal between the upstream unloading conveying unit and the unit to be adjusted, the multi-pass conveying device connecting the upstream unloading conveying unit and each downstream receiving conveying unit is adjusted to the proportional material distribution state. Then, the difference in the average conveying amount per unit time between the corresponding unit to be adjusted and the upstream unloading conveying unit is obtained and defined as the first difference. Besides the corresponding unit to be adjusted, the unreceived individuals in each of the other downstream receiving conveyors connected to the upstream unloading conveyor unit are defined as standby receiving conveyors. The multi-channel conveying device connects the upstream unloading conveying unit, the corresponding unit to be adjusted, and at least one standby receiving conveying unit, and adjusts the material distribution ratio according to the first difference; After receiving the connection signal between the upstream unloading conveying unit and the direct conveying unit, adjust the multi-pass conveying device connecting the upstream unloading conveying unit and each downstream receiving conveying unit to a single-point conduction state.

2. The material conveying method according to claim 1, characterized in that, The step "the multi-channel conveying device connects the upstream unloading conveying unit, the corresponding unit to be adjusted, and at least one standby receiving conveying unit, and adjusts the material distribution ratio according to the first difference" includes: One of the backup material receiving and conveying units is designated as the first backup unit; Control the proportional material distribution structure in the multi-channel conveying device, adjust the material receiving amount per unit time of the corresponding unit to be adjusted to its own average material receiving amount per unit time, and adjust the material receiving amount per unit time of the first standby unit to the first difference value; The multi-channel conveying device connects the upstream unloading and conveying unit, the corresponding unit to be adjusted, and the first standby unit.

3. The material conveying method according to claim 2, characterized in that, An auxiliary multi-pass device is installed on the first backup unit, and the auxiliary multi-pass device is connected to the multi-pass conveying device of the upstream unloading and conveying unit.

4. The material conveying method according to claim 3, characterized in that, Also includes: Obtain the status of the multi-pass conveying device on another upstream unloading and conveying unit at the same height; When the state is proportional material distribution state, control the multi-pass material conveying device on another upstream unloading conveying unit to connect with the auxiliary multi-pass device of the first standby unit.

5. The material conveying method according to any one of claims 1-4, characterized in that, The upstream unloading conveying unit and / or the downstream receiving conveying unit are belt conveyors.

6. The material conveying method according to any one of claims 1-4, characterized in that, The upstream unloading conveying unit is located above the downstream receiving conveying unit.

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