Band type pellet roasting material distribution control method and related equipment

Abstract

The invention provides a belt type pellet roasting distribution control method and related equipment, and the method comprises the steps: determining the running speed of a wide belt based on the target material layer thickness, the bottom material thickness, the running speed, the trolley width and the material bulk density of a roasting machine trolley, and the material layer thickness and the material loading width of the wide belt; the material layer thickness of the wide belt is associated with the preset feeding layer thickness of the roller screen machine; and the running speed of the first belt and the running speed of the shuttle-type distributor are determined based on the material weight increased by the first belt in unit time, the material layer thickness of the first belt, the material loading width, the material pile density, the material layer thickness of the wide belt and the material loading width of the shuttle-type distributor. The screening efficiency of the roller screening machine is guaranteed through the preset thickness of the feeding layer of the roller screening machine, the thickness of the wide belt material layer is associated with the thickness of the feeding layer of the roller screening machine, the thickness of the wide belt material layer serves as a control core, operation parameters, matched with production requirements, of the first belt, the wide belt and the shuttle type distributor are calculated, and uniform material distribution control over the belt type roasting machine is achieved.

Description

Technical Field

[0001] The present application relates to the field of automatic control technology, and in particular to a belt-type pellet roasting distribution control method and related equipment. Background Art

[0002] The belt-type pellet roaster is a new belt-type roaster process in the pellet production process, and is one of the most important equipment in the pellet equipment. The process requires that the material thickness control of the belt-type pellet roaster be fully automatically adjusted in the state of production, and no manual operation is required.

[0003] In the pellet production process, the raw balls can generally be fed to the shuttle feeder for feeding the roaster. The shuttle feeder's reciprocating motion allows the raw balls to be fed to the wide belt and then fed to the roaster through a roller screen. The feeding uniformity of the roaster is an important part of the entire belt roasting process and is a necessary condition for the raw balls to be heated evenly on the roaster. However, in actual applications, due to various reasons, such as the inertia of the start and stop operations when the shuttle feeder's reciprocating trolley turns, the material on the wide belt will be uneven, resulting in insufficient feeding uniformity of the roaster. Summary of the invention

[0004] In view of this, the present application provides a belt-type pellet roasting distribution control method and related equipment, which can automatically achieve the uniformity of the roasting machine's distribution.

[0005] The technical solution is as follows:

[0006] In a first aspect, an embodiment of the present application provides a belt-type pellet roasting material distribution control method, the method is applied to a belt roasting machine, the belt roasting machine comprises: a first belt, a shuttle distributor, a wide belt, a roller screen and a roasting machine trolley; wherein the first belt is connected to the shuttle distributor, the shuttle distributor is used to distribute material to the wide belt, and the roller screen is used to transport the material conveyed by the wide belt to the roasting machine trolley;

[0007] The method comprises:

[0008] Determine a first weight based on a target material layer thickness of the roasting machine trolley, a bottom material thickness of the roasting machine trolley, a running speed of the roasting machine trolley, a trolley width of the roasting machine trolley, and a material bulk density, wherein the first weight is a material demand of the roasting machine trolley per unit time;

[0009] Determine the running speed of the wide belt based on the first weight, the material layer thickness of the wide belt, the material loading width of the wide belt and the material bulk density, wherein the material layer thickness of the wide belt is associated with a preset material layer thickness of the roller screen;

[0010] Obtaining a second weight, where the second weight is the weight of the material increased by the first belt per unit time;

[0011] determining the running speed of the first belt based on the second weight, the material layer thickness of the first belt, the material loading width of the first belt, and the material bulk density;

[0012] Determining a material distribution speed of the shuttle distributor based on the second weight, the material layer thickness of the wide belt, the material loading width of the shuttle distributor, and the material bulk density;

[0013] The running speed of the shuttle distributor is determined based on the running speed of the first belt and the material distribution speed of the shuttle distributor.

[0014] In an optional implementation, the material carrying width of the wide belt is determined based on the belt width of the wide belt and a preset cloth dead zone width, and the material carrying width of the wide belt is the same as the cloth moving range of the shuttle distributor.

[0015] In an optional implementation, the method further includes:

[0016] Obtaining an actual material layer thickness of a target partition, where the target partition belongs to any one of a plurality of partitions in a material loading platform of a roasting machine trolley;

[0017] The material distribution condition of the target partition is determined according to the actual material layer thickness of the target partition and the target material layer thickness of the roasting machine trolley.

[0018] In an optional implementation, determining the material distribution condition of the target partition according to the actual material layer thickness of the target partition and the target material layer thickness of the roasting machine trolley includes:

[0019] If the absolute error between the actual material layer thickness of the target partition and the target material layer thickness of the roasting machine trolley is greater than a preset threshold, it is determined that the material distribution condition of the target partition is uneven;

[0020] If the absolute error value between the actual material layer thickness of the target partition and the target material layer thickness of the roasting machine trolley is less than or equal to a preset threshold, it is determined that the material distribution condition of the target partition is uniform.

[0021] In an optional implementation, the method further includes:

[0022] If the material distribution condition of the target partition is uneven, and the material distribution condition of the adjacent partition of the target partition is uniform, the moving range of the shuttle distributor and / or the running speed of the shuttle distributor are adjusted based on the actual material layer thickness of the adjacent partition;

[0023] If the distribution condition of the target partition is uneven, and the distribution condition of the adjacent partition of the target partition is uneven, the moving range and / or the running speed of the shuttle distributor are adjusted based on the target material layer thickness of the roasting machine trolley.

[0024] In an optional implementation, adjusting the moving range of the shuttle distributor and / or the running speed of the shuttle distributor based on the actual material layer thickness of the adjacent partitions includes:

[0025] Determine a third weight based on the actual material layer thickness of the adjacent partitions, the bottom material thickness of the roasting machine trolley, the running speed of the roasting machine trolley, the width of the loading platform corresponding to the target partition, and the material bulk density, wherein the third weight is the material adjustment weight corresponding to the target partition;

[0026] Determine a fourth weight based on the second weight and the distribution time of the shuttle distributor corresponding to the target partition, wherein the fourth weight is the weight of the material in the area of ​​the wide belt corresponding to the target partition;

[0027] When the third weight is greater than the fourth weight, and the target partition is the two end areas of the roasting machine trolley, the moving range of the shuttle distributor is expanded and / or the running speed of the shuttle distributor in the target partition is reduced;

[0028] When the third weight is less than the fourth weight, and the target partition is the two end areas of the roasting machine trolley, the moving range of the shuttle distributor is reduced and / or the running speed of the shuttle distributor in the target partition is increased;

[0029] When the third weight is greater than the fourth weight, and the target partition is the middle area of ​​the roasting machine trolley, reducing the running speed of the shuttle distributor in the target partition;

[0030] When the third weight is less than the fourth weight, and the target partition is the middle area of ​​the roasting machine trolley, the running speed of the shuttle distributor in the target partition is increased.

[0031] In an optional implementation, adjusting the moving range of the shuttle distributor and / or the running speed of the shuttle distributor based on the target material layer thickness of the roasting machine trolley includes:

[0032] Determine a third weight based on the target material layer thickness of the roasting machine trolley, the bottom material thickness of the roasting machine trolley, the running speed of the roasting machine trolley, the width of the loading platform corresponding to the target partition, and the material bulk density, wherein the third weight is the material adjustment weight corresponding to the target partition;

[0033] Determine a fourth weight based on the second weight and the distribution time of the shuttle distributor corresponding to the target partition, wherein the fourth weight is the weight of the material in the area of ​​the wide belt corresponding to the target partition;

[0034] When the third weight is greater than the fourth weight, and the target partition is the two end areas of the roasting machine trolley, the moving range of the shuttle distributor is expanded and / or the running speed of the shuttle distributor in the target partition is reduced;

[0035] When the third weight is less than the fourth weight, and the target partition is the two end areas of the roasting machine trolley, the moving range of the shuttle distributor is reduced and / or the running speed of the shuttle distributor in the target partition is increased;

[0036] When the third weight is greater than the fourth weight, and the target partition is the middle area of ​​the roasting machine trolley, reducing the running speed of the shuttle distributor in the target partition;

[0037] When the third weight is less than the fourth weight, and the target partition is the middle area of ​​the roasting machine trolley, the running speed of the shuttle distributor in the target partition is increased.

[0038] In a second aspect, an embodiment of the present application provides an electronic device, comprising: at least one memory and at least one processor; the memory stores an application, the processor calls the application stored in the memory, and the application is used to implement the belt pellet roasting distribution control method provided in the first aspect of the present application.

[0039] In a third aspect, an embodiment of the present application provides a computer-readable storage medium, comprising instructions, which, when executed on a computer, enables the computer to execute the belt-type pellet roasting distribution control method provided in the first aspect of the present application.

[0040] In a fourth aspect, an embodiment of the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute the belt-type pellet roasting distribution control method provided in the first aspect of the present application.

[0041] The above technical solution has the following beneficial effects:

[0042] The embodiment of the present application provides a belt-type pellet roasting material distribution control method, which is applied to a belt roasting machine. When executing the method, a first weight is determined based on a target material layer thickness of a roasting machine trolley, a bottom material thickness of the roasting machine trolley, a running speed of the roasting machine trolley, a trolley width of the roasting machine trolley, and a material stacking density, wherein the first weight is the material demand of the roasting machine trolley per unit time; a running speed of the wide belt is determined based on the first weight, a material layer thickness of a wide belt, a loading width of the wide belt, and the material stacking density, wherein the material layer thickness of the wide belt is associated with a preset upper material layer thickness of a roller screen; a second weight is obtained, wherein the second weight is the material weight increased by the first belt per unit time; a running speed of the first belt is determined based on the second weight, a material layer thickness of the first belt, a loading width of the first belt, and the material stacking density; a distributing speed of the shuttle distributor is determined based on the second weight, a material layer thickness of the wide belt, a loading width of the shuttle distributor, and the material stacking density; and a running speed of the shuttle distributor is determined based on the running speed of the first belt and the distributing speed of the shuttle distributor. It can be seen that the embodiment of the present application ensures the screening efficiency of the roller screen by presetting the thickness of the feeding layer of the roller screen, associates the thickness of the wide belt material layer with the thickness of the feeding layer of the roller screen, and takes the thickness of the wide belt material layer as the control core. The operating parameters of the first belt, wide belt and shuttle distributor that match the production needs are calculated respectively, so as to realize the distribution control of the belt roasting machine and ensure the uniformity of the distribution.

[0043] The embodiments of the present application also provide electronic devices, computer-readable storage media, and computer program products associated with the above method, which have the same beneficial effects as the above method. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in this embodiment or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0045] Figure 1 A schematic diagram of the structure of a belt roasting machine provided in an embodiment of the present application;

[0046] Figure 2 A partial schematic top view of a belt roasting machine provided in an embodiment of the present application;

[0047] Figure 3 A schematic flow chart of a belt-type pellet roasting distribution control method provided in an embodiment of the present application;

[0048] Figure 4A schematic diagram of the relationship between the material loading width of a wide belt provided in an embodiment of the present application;

[0049] Figure 5 A schematic diagram of the partitioning of a belt roasting machine trolley loading platform provided in an embodiment of the present application;

[0050] Figure 6 A schematic diagram of the partitioning of a wide belt provided in an embodiment of the present application. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0052] In order to automatically achieve uniform distribution of the roasting machine, the embodiment of the present application provides a belt-type pellet roasting distribution control method, which can be applied to the belt-type roasting machine, see Figure 1 A structural schematic diagram of a belt roasting machine is shown, and the belt roasting machine 100 includes: a first belt 101, a shuttle distributor 102, a wide belt 103, a roller screen 104, a roasting machine trolley 105, a belt scale 106 and a material level meter 107; when the belt roasting machine 100 is working, the first belt 101 obtains material resources at the receiving point, such as iron ore pellets, etc., and the present application does not limit the type of material resources. The belt scale 106 can weigh the material resources on the first belt 101 to obtain the material weight.

[0053] The first belt 101 is connected to the shuttle distributor 102. The first belt 101 transports the material resources to the shuttle distributor 102. The shuttle distributor 102 is used to distribute the material to the wide belt 103. Figure 2 A partial schematic diagram of a belt roasting machine from a top view is shown, which shows the process of a shuttle distributor 102 distributing material to a wide belt 103. The shuttle distributor 102 can reciprocate perpendicular to the running direction of the wide belt 103. When moving forward, no material is distributed. When moving backward, as the head of the shuttle distributor 102 retracts, the material falls onto the wide belt 103, thereby achieving distribution of material to the wide belt 103.

[0054] The roller screen 104 is used to transport the material conveyed by the wide belt 103 to the roasting machine trolley 105. The roller screen 104 will screen out material resources whose particle size does not meet the requirements. Generally, material resources that do not meet the requirements can be ignored in the calculation.

[0055] It should be noted that the first belt 101 is connected to the shuttle distributor 102, and the belt width of the first belt 101 is the same as the width of the shuttle distributor 102. The belt width of the wide belt 103, the width of the roller screen 104, and the width of the loading platform of the belt roasting machine trolley are the same.

[0056] See below Figure 3 A schematic flow chart of a belt-type pellet roasting distribution control method is shown, and the method may include:

[0057] Step S100: Determine a first weight based on the target material layer thickness of the roasting machine trolley, the bottom material thickness of the roasting machine trolley, the running speed of the roasting machine trolley, the trolley width of the roasting machine trolley and the material stacking density. The first weight is the material demand of the roasting machine trolley per unit time.

[0058] Among them, the target material layer thickness of the roasting machine trolley is set based on production needs, and technicians can set the target material layer thickness of the roasting machine trolley according to actual production needs. The bottom material thickness of the roasting machine trolley refers to the thickness of the bottom material in the loading platform of the roasting machine trolley. Laying the bottom material in the loading platform of the roasting machine trolley in advance can protect the grates of the roasting machine trolley and prevent it from overheating. The thickness required for laying the bottom material can be adjusted according to production needs, and technicians can set the bottom material thickness of the roasting machine trolley according to actual production needs.

[0059] Specifically, the calculation of step S100 can be obtained by the following formula (1):

[0060] G d =TH d ×W d ×V d ×ρ (1)

[0061] Among them, G d is the material demand of the roasting machine trolley per unit time, that is, the first weight; TH d is the material thickness of the roasting machine trolley, which can be obtained by subtracting the bottom material thickness from the target material layer thickness, that is, TH d =H t -TH p , H t is the target material layer thickness, TH p is the base material thickness; V d W is the running speed of the roasting machine trolley; d is the trolley width of the roasting machine; ρ is the material bulk density.

[0062] Step S200: Determine the running speed of the wide belt based on the first weight, the material layer thickness of the wide belt, the material loading width of the wide belt and the material bulk density, wherein the material layer thickness of the wide belt is associated with a preset material layer thickness of the roller screen.

[0063] The material layer thickness of the wide belt is associated with a preset material layer thickness of the roller screen. In an optional implementation, the material layer thickness of the wide belt is equal to the preset material layer thickness of the roller screen.

[0064] It is understandable that the material layer thickness of the wide belt will affect the screening efficiency of the rear roller screen. If the material layer thickness is too high, too much material will fall into the roller screen at one time, resulting in insufficient screening efficiency of the roller screen. Materials that may not meet the particle size requirements in the raw balls cannot be screened out by the roller screen. If the material layer thickness of the wide belt is too thin, less material will fall into the roller screen at one time. Another function of the roller screen is to even out the material, which requires that the material on the roller screen needs to be increased in thickness to a certain extent. The technicians can pre-set the material layer thickness of the roller screen according to actual conditions. For example, when the material is iron ore raw pellets, the material layer thickness of the roller screen can be set to 2 or 3 iron ore raw pellets, and then the material layer thickness of the wide belt can be calculated according to the preset roller screen material layer thickness.

[0065] Specifically, the calculation of step S200 can be obtained by the following formula (2):

[0066]

[0067] Where, is the running speed of the wide belt, G d is the material demand of the roasting machine trolley per unit time, that is, the first weight; TH k w is the material thickness of the wide belt; k is the loading width of the wide belt; ρ is the bulk density of the material.

[0068] In an optional implementation, the material carrying width of the wide belt is determined based on the belt width of the wide belt and a preset cloth dead zone width, and the material carrying width of the wide belt is the same as the cloth moving range of the shuttle distributor.

[0069] It should be noted that the material width of the wide belt is the same as the material movement range of the shuttle distributor. In actual application, in order to adjust the material thickness on both sides of the material loading platform of the roasting machine trolley, the starting and ending positions of the reciprocating motion of the shuttle distributor are set, and the material dead zone is pre-set at the two boundaries on the wide belt. The material feeding position of the shuttle distributor cannot exceed the boundary dead zone, see Figure 4 The schematic diagram of the relationship between the loading width of the wide belt is shown in FIG. Figure 4 It can be seen that the fabric width of the shuttle feeder (the loading width of the wide belt) is w k =W k -w r -w l , where W k is the belt width of the wide belt, w rIndicates the distance between the material boundary and the right edge of the wide belt when the shuttle feeder is feeding, w l It indicates the distance between the material boundary and the left edge of the wide belt when the shuttle feeder is feeding.

[0070] Step S300: Obtain a second weight, where the second weight is the weight of the material added by the first belt per unit time.

[0071] Specifically, the second weight can be obtained by detecting a belt scale provided on the first belt in the belt roasting machine.

[0072] Step S400: determining the running speed of the first belt based on the second weight, the material layer thickness of the first belt, the material loading width of the first belt, and the material bulk density.

[0073] Among them, the material layer thickness and loading width of the first belt can be determined by the setting of the material receiving operation at the receiving point. The technicians can select the appropriate material layer thickness and loading width of the first belt according to the actual production needs. In actual application, in order to avoid overflow of the first belt due to excessive transport of materials, the loading width of the first belt is generally set to be smaller than the belt width of the first belt.

[0074] Specifically, the calculation of step S400 can be obtained by the following formula (3):

[0075]

[0076] Among them, v l1 is the first belt running speed; q l1 H is the material weight added by the first belt per unit time, i.e. the second weight; l1 W is the material layer thickness of the first belt; l1 is the loading width of the first belt; ρ is the bulk density of the material.

[0077] Step S500: determining the material distribution speed of the shuttle distributor based on the second weight, the material layer thickness of the wide belt, the material loading width of the shuttle distributor, and the material bulk density.

[0078] The shuttle distributor is directly connected to the first belt, and the loading width of the shuttle distributor is equal to the loading width of the first belt.

[0079] Specifically, the calculation of step S500 can be obtained by the following formula (4):

[0080]

[0081] Among them, v b is the feeding speed of the shuttle feeder; q l1 The material weight added by the first belt per unit time, i.e. the second weight; TH kW is the material thickness of the wide belt; s is the loading width of the shuttle feeder; ρ is the bulk density of the material.

[0082] Step S600: determining the running speed of the shuttle distributor based on the running speed of the first belt and the distribution speed of the shuttle distributor.

[0083] Specifically, the shuttle distributor distributes materials through reciprocating motion. When the shuttle distributor moves forward, the forward speed is consistent with the running speed of the first belt, so that the material position at the head of the shuttle distributor is relatively static. Therefore, the shuttle distributor does not distribute materials when it moves forward. When the shuttle distributor moves backward, the horizontal moving speed of the material (i.e. the distribution speed of the shuttle distributor) is v b =v l1 +v s , where v b is the feeding speed of the shuttle feeder, v l1 is the running speed of the first belt, v s It is the running speed of the shuttle feeder.

[0084] Therefore, the calculation of step S600 can be obtained by the following formula (5):

[0085]

[0086] Among them, v l1 is the first belt running speed; q l1 H is the material weight added by the first belt per unit time, i.e. the second weight; l1 W is the material layer thickness of the first belt; l1 v is the loading width of the first belt; b is the feeding speed of the shuttle feeder; q l1 The material weight added by the first belt per unit time, i.e. the second weight; TH k W is the material thickness of the wide belt; s is the loading width of the shuttle feeder; ρ is the bulk density of the material.

[0087] It can be seen from the above steps S100 to S600 that the embodiment of the present application presets the thickness of the feeding layer of the roller screen to ensure the screening efficiency of the roller screen, associates the thickness of the wide belt material layer with the thickness of the feeding layer of the roller screen, and takes the thickness of the wide belt material layer as the control core. The operating parameters of the first belt, the wide belt and the shuttle distributor that match the production requirements (the target material layer thickness of the roasting machine trolley) are calculated respectively to realize the distribution control of the belt roasting machine and ensure the uniformity of the distribution.

[0088] Due to the control accuracy, environmental impact and other factors that may exist in the actual operation of the belt roasting machine, the uniformity of the material distribution on the roasting machine trolley may still not meet the requirements. Figure 1 In the embodiment of the present application, the material level meter 107 can also be used to monitor the uniformity of the material distribution on the roasting machine trolley, and when uneven material distribution occurs, the uniformity of the material distribution on the roasting machine trolley can be fine-tuned by adjusting the moving range and running speed of the shuttle distributor.

[0089] See also Figure 5 The schematic diagram of the partition of a belt roasting machine trolley loading platform is shown. The belt roasting machine trolley loading platform can be divided into multiple partitions. Figure 5 In the figure, four equally divided partitions are used as an example for explanation. In actual application, it can be set according to the width of the loading platform and the detailed monitoring requirements. This application does not limit the number of partitions.

[0090] In an optional implementation, the method provided in the embodiment of the present application further includes the following steps:

[0091] Step S701: obtaining the actual material layer thickness of a target partition, where the target partition belongs to any one of the multiple partitions in the material loading platform of the roasting machine trolley;

[0092] Specifically, the actual material layer thickness in the target partition is obtained by setting a material level meter for detection in the target partition.

[0093] Step S702: determining the material distribution of the target partition according to the actual material layer thickness of the target partition and the target material layer thickness of the roasting machine trolley.

[0094] Specifically, the actual material layer thickness in the target partition is compared with the target material layer thickness of the roasting machine trolley to obtain the material distribution situation of the target partition, and the material distribution situation of the target partition can reflect the uniformity of the material distribution in the target partition.

[0095] In an optional implementation, the above step S702 may specifically include:

[0096] If the absolute error value between the actual material layer thickness of the target partition and the target material layer thickness of the roasting machine trolley is greater than the preset threshold, the material distribution condition of the target partition is determined to be uneven; if the absolute error value between the actual material layer thickness of the target partition and the target material layer thickness of the roasting machine trolley is less than or equal to the preset threshold, the material distribution condition of the target partition is determined to be uniform.

[0097] Combine the following Figure 5 The partition diagram shown illustrates how to determine the material distribution of the target partition:

[0098] The belt roasting machine trolley loading platform can be divided into four areas, namely A1 area, A2 area, A3 area and A4 area. Four material level meters are used to detect the actual material layer thickness in different areas of the same cross section to obtain four height values. Then calculate the absolute error between the actual material surface height and the target material layer thickness in each area, and pre-set the threshold TH thresh , when the deviation between the actual material layer thickness and the target material layer thickness in the area is greater than the preset threshold, it is determined that the material layer thickness in the area does not meet the uniformity requirements, that is, the material distribution is uneven. The area is represented by state 1. If it is less than or equal to the threshold, the material layer thickness in the area meets the requirements and is represented by state 0, as follows:

[0099] like Then the material surface deviation in area A1 is too large, and the value is expressed as A1=1;

[0100] like Then the material surface deviation in area A1 is within the allowable range, and the value is expressed as A1=0;

[0101] like Then the material surface deviation in area A2 is too large, and the value is expressed as A2 = 1;

[0102] like Then the material surface deviation in area A2 is within the allowable range, and the value is expressed as A2 = 0;

[0103] like Then the material surface deviation in area A3 is too large, and the value is expressed as A3 = 1;

[0104] like Then the material surface deviation in area A3 is within the allowable range, and the value is expressed as A3 = 0;

[0105] like Then the material surface deviation in area A4 is too large, and the value is expressed as A4=1;

[0106] like Then the material surface deviation in area A4 is within the allowable range, and the value is expressed as A4=0;

[0107] When there is a value of 1 in A1, A2, A3 and A4, it is considered that the fabric is uneven and needs to be adjusted accordingly.

[0108] In an optional implementation, the method provided in the embodiment of the present application further includes the following steps:

[0109] Step S801: If the material distribution condition of the target partition is uneven, and the material distribution condition of the adjacent partition of the target partition is uniform, the moving range and / or the running speed of the shuttle distributor are adjusted based on the actual material layer thickness of the adjacent partition.

[0110] Step S802: If the distribution condition of the target partition is uneven, and the distribution condition of the adjacent partitions of the target partition is uneven, the moving range and / or the running speed of the shuttle distributor are adjusted based on the target material layer thickness of the roasting machine trolley.

[0111] Specifically, if the material distribution condition of the target partition is uneven, while the material distribution condition of the partition adjacent to the target partition is uniform, the target partition adjusts the moving range and / or the operating speed of the shuttle distributor according to the material layer height of the adjacent partition; if the material distribution condition of the adjacent partition is also uneven, the moving range and / or the operating speed of the shuttle distributor are adjusted according to the target material layer thickness to try to maintain the continuity of the material layer changes in adjacent areas.

[0112] In an optional implementation, if the target area is the middle area and the material distribution conditions in the adjacent areas are uniform, the moving range and / or the operating speed of the shuttle distributor are adjusted based on the actual material layer thickness of the adjacent partitions belonging to the middle area.

[0113] Specific combination Figure 5 The partition diagram shown is used for explanation. If A1=1, A2=0, the shuttle feeder operation parameters of area A1 are adjusted according to the material layer thickness of area A2. If A1=1, A2=1, the target material layer thickness value H is used. t To adjust. During the production of the belt roasting machine, in order to protect the side rails of the trolley, the thickness of the material layer on both sides can be slightly higher than the thickness of the material layer in the middle area. Therefore, when the middle area takes the normal value of the adjacent area, the middle area is given priority. For example, if A2=1, A1=0 and A3=0, the shuttle distributor operation parameters are adjusted according to the material layer thickness value of the A3 area.

[0114] In an optional embodiment, the above step S801 adjusts the moving range of the shuttle distributor and / or the running speed of the shuttle distributor based on the actual material layer thickness of the adjacent partitions, which specifically includes the following steps:

[0115] Step S8011: determining a third weight based on the actual material layer thickness of the adjacent partitions, the bottom material thickness of the roasting machine trolley, the running speed of the roasting machine trolley, the width of the loading platform corresponding to the target partition, and the material stacking density, where the third weight is the material adjustment weight corresponding to the target partition;

[0116] Among them, the shuttle cloth operation parameters are adjusted based on the actual material layer thickness of the adjacent partitions, and the material weight required for the corresponding area on the wide belt needs to be calculated first.

[0117] Specifically, the third weight can be calculated by the following formula (6):

[0118]

[0119] in, Adjust the weight of the material corresponding to the target partition, i.e. the third weight; The target material layer thickness that needs to be adjusted in the target area, that is, the actual material layer thickness of the adjacent partitions; TH p w is the base material thickness; a1 V is the width of the loading platform corresponding to the target partition; d is the running speed of the roasting machine trolley; ρ is the material bulk density.

[0120] Step S8012: Determine a fourth weight based on the second weight and the distribution time of the shuttle distributor corresponding to the target partition, where the fourth weight is the weight of the material in the area of ​​the wide belt corresponding to the target partition.

[0121] Specifically, the second weight is the weight of the material added by the first belt per unit time, and the second weight can be obtained by detecting the belt scale provided on the first belt in the belt roasting machine. Since the belt width of the wide belt, the width of the roller screen machine, and the width of the loading platform of the belt roasting machine trolley are the same, the target partition of the loading platform of the belt roasting machine trolley is also the same as the interval range corresponding to the shuttle distributor and the wide belt. Therefore, the material weight of the area corresponding to the target partition in the wide belt can be obtained based on the weight of the material added by the first belt per unit time and the distribution time corresponding to the shuttle distributor in the target partition.

[0122] Specifically, the fourth weight can be calculated by the following formula (7):

[0123]

[0124] in, is the weight of the material in the area corresponding to the target zone in the wide belt, i.e. the fourth weight; l1 is the material weight added by the first belt per unit time, i.e. the second weight; t 0 is the starting time of the shuttle distributor in the target partition, t 1 It is the distribution end time of the shuttle distributor in the target zone.

[0125] Combine the following Figure 6 The schematic diagram of the wide belt partitions shown illustrates the distribution time of the shuttle distributor in the target partition:

[0126] For example, in the A1 region, t 0 =0, S 1Indicates the distance from the starting position of the shuttle feeder to the left edge of the wide belt, S 1 The value cannot be less than the boundary dead zone value w set by the system l ; S 3 Indicates the boundary position of the A1 area.

[0127] In addition, S 2 Indicates the distance from the starting position of the shuttle feeder to the right edge of the wide belt, S 2 The value cannot be less than the boundary dead zone value w set by the system r ; S 4 Indicates the boundary position of the A2 region, S 5 Indicates the boundary position of the A3 area.

[0128] It can be seen that the material weight in the area corresponding to the target partition in the wide belt is related to the material flow of the first belt, the operating range of the shuttle distributor in this area and the operating speed of the shuttle distributor. Subsequently, the operating parameters of the shuttle distributor can be adjusted to achieve fine-tuning of the uniformity of the distribution.

[0129] The specific adjustment is subdivided into four possible situations with different corresponding adjustment methods, see the following steps S8013 to S8016 for details:

[0130] Step S8013: When the third weight is greater than the fourth weight, and the target partition is the two end areas of the roasting machine trolley, the moving range of the shuttle distributor is expanded and / or the running speed of the shuttle distributor in the target partition is reduced.

[0131] Specifically, when the third weight is greater than the fourth weight, that is, the adjusted weight of the material in the target partition is greater than the weight of the material in the area corresponding to the target partition in the wide belt, and the target partition is the two end areas of the roasting machine trolley, the current adjustment idea is to increase the amount of material put into the target partition, so fine-tuning can be achieved by expanding the moving range of the shuttle distributor and / or reducing the running speed of the shuttle distributor in the target partition. It should be noted that expanding the moving range of the shuttle distributor requires adjusting the above S 1 or S 2 Adjust when S 1 or S 2 After it is equal to the dead zone value set by the system, it will no longer be adjusted, and the adjustment is achieved by adjusting the running speed of the shuttle distributor in the target partition. In practical applications, the moving range of the shuttle distributor can be adjusted first, and when the moving range of the shuttle distributor reaches the limit of the dead zone, the running speed of the shuttle distributor can be adjusted. This application does not limit this. In another possibility, the moving range and running speed of the shuttle distributor can also be adjusted at the same time to improve the adjustment efficiency.

[0132] Step S8014: When the third weight is less than the fourth weight, and the target partition is the two end areas of the roasting machine trolley, the moving range of the shuttle distributor is reduced and / or the running speed of the shuttle distributor in the target partition is increased.

[0133] Specifically, when the third weight is less than the fourth weight, the current adjustment idea is to reduce the amount of material delivered to the target partition, and to achieve fine-tuning by reducing the moving range of the shuttle distributor and / or reducing the running speed of the shuttle distributor in the target partition.

[0134] Step S8015: When the third weight is greater than the fourth weight, and the target partition is the middle area of ​​the roasting machine trolley, the running speed of the shuttle distributor in the target partition is reduced.

[0135] Specifically, when the third weight is greater than the fourth weight, the current adjustment idea is to increase the amount of material delivered to the target partition. Since the target partition is the middle area, the moving range of the shuttle distributor cannot be adjusted. Therefore, fine-tuning is achieved by reducing the running speed of the shuttle distributor in the target partition.

[0136] Step S8016: When the third weight is less than the fourth weight, and the target partition is the middle area of ​​the roasting machine trolley, the running speed of the shuttle distributor in the target partition is increased.

[0137] Specifically, when the third weight is less than the fourth weight, the current adjustment idea is to reduce the amount of material delivered to the target partition and to achieve fine-tuning by increasing the running speed of the shuttle distributor in the target partition.

[0138] As can be seen from the above, in the embodiment of the present application, when uneven material layers still occur during a specific production process, the loading platform of the belt roasting machine trolley is divided into areas using a material level meter, and the starting position and / or running speed of the shuttle distributor in the corresponding area is adjusted to control the material amount of the wide belt in the corresponding area, so as to achieve fine-tuning of the material layer in the area that needs to be adjusted on the belt roasting machine, ensure the uniformity of the material distribution of the roasting machine, and improve the roasting quality.

[0139] In an optional embodiment, the moving range of the shuttle distributor and / or the running speed of the shuttle distributor are adjusted based on the target material layer thickness of the roasting machine trolley in the above step S802, which specifically includes the following steps:

[0140] Step S8021: determining a third weight based on the target material layer thickness of the roasting machine trolley, the bottom material thickness of the roasting machine trolley, the running speed of the roasting machine trolley, the width of the loading platform corresponding to the target partition, and the material stacking density, where the third weight is the material adjustment weight corresponding to the target partition;

[0141] Step S8022: determining a fourth weight based on the second weight and the distribution time of the shuttle distributor corresponding to the target partition, the fourth weight being the weight of the material in the area of ​​the wide belt corresponding to the target partition;

[0142] Step S8023: when the third weight is greater than the fourth weight, and the target partition is the two end areas of the roasting machine trolley, the moving range of the shuttle distributor is expanded and / or the running speed of the shuttle distributor in the target partition is reduced;

[0143] Step S8024: when the third weight is less than the fourth weight, and the target partition is the two end areas of the roasting machine trolley, the moving range of the shuttle distributor is reduced and / or the running speed of the shuttle distributor in the target partition is increased;

[0144] Step S8025: when the third weight is greater than the fourth weight, and the target zone is the middle zone of the roasting machine trolley, the running speed of the shuttle distributor in the target zone is reduced;

[0145] Step S8026: When the third weight is less than the fourth weight, and the target partition is the middle area of ​​the roasting machine trolley, the running speed of the shuttle distributor in the target partition is increased.

[0146] It should be noted that the description of the above steps S8021 to S8026 can refer to steps S8011 to S8016 provided in the aforementioned embodiments. The only difference is that the actual material layer thickness of the adjacent partitions for determining the third weight in step S8011 is replaced by the target material layer thickness of the roasting machine trolley. The steps are the same as described above and will not be elaborated here.

[0147] Another embodiment of the present application also provides an electronic device, including: at least one memory and at least one processor; the memory stores an application, the processor calls the application stored in the memory, and the application is used to implement any of the belt pellet roasting distribution control methods as described in the above embodiments.

[0148] Another embodiment of the present application further provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the method for controlling the distribution of belt-type pellet roasting materials as described in any one of the above embodiments is implemented.

[0149] Another embodiment of the present application further provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to implement any of the belt-type pellet roasting distribution control methods described in the above embodiments.

[0150] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0151] Those skilled in the art can understand that the flowchart shown in the figure is only an example in which the embodiments of the present application can be implemented, and the scope of application of the embodiments of the present application is not limited by any aspect of the flowchart.

[0152] In the several embodiments provided in the present application, it should be understood that the disclosed methods, devices and equipment can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of the device or unit can be electrical, mechanical or other forms.

[0153] The units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. In addition, each functional unit in each embodiment of the present application may be integrated into a processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0154] If the functions are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the methods described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0155] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A belt type pellet roasting distribution control method, characterized in that: The method is applied to a belt roasting machine, which comprises: a first belt, a shuttle distributor, a wide belt, a roller screen and a roasting machine trolley; wherein the first belt is connected to the shuttle distributor, the shuttle distributor is used to distribute materials to the wide belt, and the roller screen is used to transport the materials conveyed by the wide belt to the roasting machine trolley; the method comprises: Determine a first weight based on a target material layer thickness of the roasting machine trolley, a bottom material thickness of the roasting machine trolley, a running speed of the roasting machine trolley, a trolley width of the roasting machine trolley, and a material bulk density, wherein the first weight is a material demand of the roasting machine trolley per unit time; Determine the running speed of the wide belt based on the first weight, the material layer thickness of the wide belt, the material loading width of the wide belt and the material bulk density, wherein the material layer thickness of the wide belt is associated with a preset material layer thickness of the roller screen; Obtaining a second weight, where the second weight is the weight of the material increased by the first belt per unit time; determining the running speed of the first belt based on the second weight, the material layer thickness of the first belt, the material loading width of the first belt, and the material bulk density; Determining a material distribution speed of the shuttle distributor based on the second weight, the material layer thickness of the wide belt, the material loading width of the shuttle distributor, and the material bulk density; The running speed of the shuttle distributor is determined based on the running speed of the first belt and the material distribution speed of the shuttle distributor.

2. The method according to claim 1, characterized in that: The material carrying width of the wide belt is determined based on the belt width of the wide belt and a preset cloth dead zone width, and the material carrying width of the wide belt is the same as the cloth moving range of the shuttle cloth feeder.

3. The method according to claim 1 or 2, characterized in that: The method further comprises: Obtaining an actual material layer thickness of a target partition, where the target partition belongs to any one of a plurality of partitions in a material loading platform of a roasting machine trolley; The material distribution condition of the target partition is determined according to the actual material layer thickness of the target partition and the target material layer thickness of the roasting machine trolley.

4. The method according to claim 3, characterized in that: The determining of the material distribution condition of the target partition according to the actual material layer thickness of the target partition and the target material layer thickness of the roasting machine trolley includes: If the absolute error between the actual material layer thickness of the target partition and the target material layer thickness of the roasting machine trolley is greater than a preset threshold, it is determined that the material distribution condition of the target partition is uneven; If the absolute error value between the actual material layer thickness of the target partition and the target material layer thickness of the roasting machine trolley is less than or equal to a preset threshold, it is determined that the material distribution condition of the target partition is uniform.

5. The method according to claim 4, characterized in that The method further comprises: If the material distribution condition of the target partition is uneven, and the material distribution condition of the adjacent partition of the target partition is uniform, the moving range of the shuttle distributor and / or the running speed of the shuttle distributor are adjusted based on the actual material layer thickness of the adjacent partition; If the distribution condition of the target partition is uneven, and the distribution condition of the adjacent partition of the target partition is uneven, the moving range and / or the running speed of the shuttle distributor are adjusted based on the target material layer thickness of the roasting machine trolley.

6. The method according to claim 5, characterized in that The adjusting the moving range of the shuttle distributor and / or the running speed of the shuttle distributor based on the actual material layer thickness of the adjacent partitions includes: Determine a third weight based on the actual material layer thickness of the adjacent partitions, the bottom material thickness of the roasting machine trolley, the running speed of the roasting machine trolley, the width of the loading platform corresponding to the target partition, and the material bulk density, wherein the third weight is the material adjustment weight corresponding to the target partition; Determine a fourth weight based on the second weight and the distribution time of the shuttle distributor corresponding to the target partition, wherein the fourth weight is the weight of the material in the area of ​​the wide belt corresponding to the target partition; When the third weight is greater than the fourth weight, and the target partition is the two end areas of the roasting machine trolley, the moving range of the shuttle distributor is expanded and / or the running speed of the shuttle distributor in the target partition is reduced; When the third weight is less than the fourth weight, and the target partition is the two end areas of the roasting machine trolley, the moving range of the shuttle distributor is reduced and / or the running speed of the shuttle distributor in the target partition is increased; When the third weight is greater than the fourth weight, and the target partition is the middle area of ​​the roasting machine trolley, reducing the running speed of the shuttle distributor in the target partition; When the third weight is less than the fourth weight, and the target partition is the middle area of ​​the roasting machine trolley, the running speed of the shuttle distributor in the target partition is increased.

7. The method according to claim 5, characterized in that The adjusting of the moving range of the shuttle distributor and / or the running speed of the shuttle distributor based on the target material layer thickness of the roasting machine trolley comprises: Determine a third weight based on the target material layer thickness of the roasting machine trolley, the bottom material thickness of the roasting machine trolley, the running speed of the roasting machine trolley, the width of the loading platform corresponding to the target partition, and the material bulk density, wherein the third weight is the material adjustment weight corresponding to the target partition; Determine a fourth weight based on the second weight and the distribution time of the shuttle distributor corresponding to the target partition, wherein the fourth weight is the weight of the material in the area of ​​the wide belt corresponding to the target partition; When the third weight is greater than the fourth weight, and the target partition is the two end areas of the roasting machine trolley, the moving range of the shuttle distributor is expanded and / or the running speed of the shuttle distributor in the target partition is reduced; When the third weight is less than the fourth weight, and the target partition is the two end areas of the roasting machine trolley, the moving range of the shuttle distributor is reduced and / or the running speed of the shuttle distributor in the target partition is increased; When the third weight is greater than the fourth weight, and the target partition is the middle area of ​​the roasting machine trolley, reducing the running speed of the shuttle distributor in the target partition; When the third weight is less than the fourth weight, and the target partition is the middle area of ​​the roasting machine trolley, the running speed of the shuttle distributor in the target partition is increased.

8. An electronic device, characterized in that: The electronic device comprises: at least one memory and at least one processor; the memory stores an application, the processor calls the application stored in the memory, and the application is used to implement the method described in any one of claims 1-7.

9. A computer-readable storage medium comprising instructions, which, when executed on a computer, causes the computer to execute the method according to any one of claims 1 to 7.

10. A computer program product comprising instructions, which, when executed on a computer, causes the computer to perform the method according to any one of claims 1 to 7.

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