A method, device and storage medium for processing expanded spray tailings

Abstract

The present invention discloses a method, device and storage medium for processing puffed spray tailings, the method comprising the steps of obtaining the real-time capacity of an puffing machine; calculating the amount of material loss in the entire spraying process; estimating the amount of the last batch of materials entering the spraying machine after the puffing machine stops according to the real-time capacity and the amount of material loss; adjusting the single batch spraying amount of the spraying machine according to the minimum filling coefficient of the spraying machine and the estimated amount of the last batch of materials, so that the spraying weight of the last batch of the spraying machine is not less than the minimum filling coefficient of the spraying machine. The present invention constructs a mathematical model based on theoretical calculation, can intelligently and reasonably control the spraying treatment of the last batch of tailings, fundamentally avoids the generation of tailings, avoids the remaining waste of tailings, and does not need to increase equipment or transform the original production process, which is in line with the vision of enterprises to reduce costs and increase efficiency, and has high economic value.

Description

Technical Field

[0001] The invention belongs to the technical field of puffing spraying, and in particular relates to a method, a device and a storage medium for processing puffing spraying tailings. Background Art

[0002] The general puffing process of aquatic feed factories is to puff the materials first, dry them in a dryer to the target moisture content, and then pass through the conveying equipment. Depending on the characteristics of the product, it is selected whether to enter the cooler to cool the materials, and finally enter the sprayer to spray grease. Among them, the production from the dryer entrance to the cooler is continuous, and the sprayer is batch production.

[0003] When the vacuum sprayer is working on the last batch of tailings, the weight of the last batch of tailings is often not enough to ensure the minimum filling factor of the sprayer. When the weight of the last batch of tailings is not enough to reach the minimum filling factor of the sprayer, it will cause uneven spraying, which may affect product quality. If the tailings are directly treated as waste, it will increase production costs and cause unnecessary waste. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a method, device and storage medium for processing expanded spray tailings, which fundamentally solve the problem of expanded spray tailings.

[0005] The technical solution provided by the present invention is as follows:

[0006] A method for processing expanded spray tailings comprises the following steps:

[0007] Get the real-time capacity of the extruder;

[0008] Calculate the material loss during the entire spraying process;

[0009] According to the real-time production capacity and material loss, estimate the last batch of materials entering the sprayer after the extruder stops;

[0010] According to the minimum filling coefficient of the sprayer and the estimated last batch of material quantity, adjust the single batch spraying quantity of the sprayer so that the spraying weight of the last batch of the sprayer is not less than the minimum filling coefficient of the sprayer.

[0011] Furthermore, the calculation formula of the real-time production capacity of the extruder from time T1 to time T2 is:

[0012]

[0013] If T1 is the start-up time of the extruder, then T1=0, and:

[0014]

[0015] Among them, W 烘干入 kg represents the real-time cumulative capacity of the extruder from time T1 to time T2, which is equal to the amount of material entering the dryer. C 膨化 (t)kg / h is the capacity function of the extruder.

[0016] Furthermore, the material layer thickness H at the dryer entrance is detected in real time at the dryer entrance to obtain the amount of material entering the dryer from time T1 to time T2:

[0017]

[0018] W(t)=V 烘干入 ×ρ 烘干前 =0.001×H×D×ν 床板 t×ρ 烘干前 ,

[0019] If T1 is the initial feeding time of the dryer inlet, then T1=0, and:

[0020]

[0021] Among them, W 烘干入 kg represents the amount of material entering the dryer from time T1 to time T2, C 烘干 (t)kg / h is equal to the real-time capacity of the extruder from time T1 to time T2, V 烘干入 cm 3 is the volume of material entering the dryer at time t min, ρ 烘干前 kg / L is the bulk density of the material at the dryer inlet, ν 床板 =L / Tcm / min represents the moving speed of the bed board for transporting materials, Lcm, Dcm, and Tmin are the length, width, and running time of the bed board respectively.

[0022] Furthermore, the material loss includes the material moisture W taken away by the dryer. 流失 , assuming that the moisture content of the material at the dryer inlet is H 烘干前 %, the moisture content of the material after drying is H 烘干后 %, then the weight of the material after drying is W 烘干出 for:

[0023]

[0024] Furthermore, if the material needs to pass through a cooler after passing through the dryer, the material loss also includes the material moisture taken away by the cooler. Assuming that the material moisture before cooling is H 冷却前 %, the moisture content of the material after cooling is H 冷却后 %, then the weight of the material after cooling is W 冷却后 for:

[0025]

[0026] Among them, W 冷却前 =W 烘干出 , H 冷却前 =H 烘干后 , the above formula is equal to:

[0027]

[0028] Furthermore, if the puffing production line is equipped with a cooler, the last batch of material entering the spraying machine after the puffing machine stops is W 剩余 =W 冷却后 -W 喷涂 , where W 喷涂 Indicates spray weight as W 每批 The total amount of spraying for n batches of spraying, assuming W min is the minimum filling coefficient of the sprayer, then:

[0029] If W 剩余 ≥W min , then the last batch of spray weight W n+1 Adjust to W 剩余 ;

[0030] If W 剩余 <W min , then calculate and judge Is it not less than W? min If so, the last two batches of spray weight W n and W n+1 All adjusted to W p Otherwise, the last two batches of spray weight W n and W n+1 All adjusted to

[0031] Furthermore, if the puffing production line does not have a cooler, the last batch of material entering the spraying machine after the puffing machine stops is W 剩余 =W 烘干出 -W 喷涂 .

[0032] A device for processing expanded spray tail material comprises a memory, a processor and a computer program stored and running on the memory, wherein the processor implements the steps of the above processing method when executing the program.

[0033] A computer-readable storage medium stores a computer program. When the computer program is executed by a processor, the processor executes the steps of the processing method described above.

[0034] Beneficial effects of the present invention:

[0035] The present invention can intelligently and reasonably control the spraying treatment of the last batch of tailings, avoiding the waste of residual tailings. The present invention constructs a mathematical model based on theoretical calculations, fundamentally avoids the generation of tailings, does not require the addition of equipment or the transformation of the original production process, meets the vision of enterprises to reduce costs and increase efficiency, and has high economic value. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] The accompanying drawings are used to provide further understanding of the present invention and constitute a part of the specification. They are used to explain the present invention together with the embodiments of the present invention and do not constitute a limitation of the present invention.

[0037] Figure 1 It is a schematic flow chart of a processing method provided by an embodiment of the present invention;

[0038] Figure 2 It is a schematic diagram of the module composition of a processing device provided in one embodiment of the present invention. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, other embodiments obtained by ordinary technicians in this field without making creative work are all within the scope of protection of the present invention.

[0040] Embodiment 1

[0041] This embodiment provides a method for processing expanded spray tailings, the main steps of which are as follows: Figure 1 shown.

[0042] The general puffing process is to puff the material first, and then put the puffed material into the dryer to dry to the target moisture content; then pass through the conveying equipment, and choose whether to enter the cooler to cool the material according to the characteristics of the product; finally enter the sprayer to spray grease. Among them, the production from the entrance of the dryer to the cooler is continuous, and the cooler and sprayer are batch production.

[0043] During continuous production, the spray machine will set the optimal filling factor W for each batch. 每批 kg, when the extruder stops production, the material W in the process 流程 kg needs to go through n batches of spraying before it can reach the last batch W n+1 kg, the method of this embodiment is to predict the materials in the processing flow, so that the last batch W n+1 Meet the minimum filling coefficient W of the sprayer min , that is, W 流程 =nW每批 +W n+1 And W n+1 ≥W min , thus avoiding the generation of tailings.

[0044] According to the characteristics of the expansion process, the overall material flow model from the dryer inlet to the sprayer outlet can be constructed. After the expansion machine stops, the material in the process is confirmed by the following algorithm:

[0045] For the entire puffing process, assuming that the entire process from the dryer inlet to the sprayer outlet is a whole, then in continuous production, for this whole, there is W 流程 =W 烘干入 -W 喷涂出 -W 流失 , as long as W is calculated at all times during the production process 流程 kg, at the moment when the extruder stops, W 流程 kg is equal to the total amount of material in the process at this time.

[0046] In actual production, there is generally no metering device in the puffing line process. In this embodiment, the export capacity C of the puffing machine system is taken as 膨化 (t)kg / h into the spraying system, the extruder system will calculate and display this export capacity according to the production conditions, assuming that the real-time capacity is the function C 膨化 (t) = f(t) kg / h. Assuming that the production of the puffing line starts at time T1 and ends at time T2, we can use the integral equation to calculate how much material the puffing machine has fed into the dryer during this production. Wherein, W(T2) is the cumulative output of the extruder at time T2. Since the extruder just started to run at time T1, W(T1)=0, so we have:

[0047] Write the above capacity accumulation integral calculation program in the interrupt organization block OB35 of the spray system control unit PLC (programmable logic controller). Every 100ms is a calculation cycle, and you can get how much material the extruder has produced and entered the process at the current time.

[0048] In particular, if the extruder system does not calculate the real-time export capacity, we can install a laser rangefinder at the dryer inlet to detect the material layer thickness Hcm at the dryer inlet in real time. Given the bed board length Lcm, width Dcm, and bed board running time Tmin, we can calculate the bed board moving speed ν 床板 =L / Tcm / min.

[0049] Then the weight of the material entering the dryer at time t min is W(t)kg, then:

[0050] W(t)=V 烘干入 ×ρ 烘干前 =0.001×H×D×ν 床板 t×ρ 烘干前 ,

[0051] Among them, V 烘干入 cm 3 is the volume of material entering the dryer at time t min, ρ 烘干前 kg / L is the bulk density of the material at the dryer inlet. So the material flow rate C at the dryer inlet is 烘干 (t)kg / h:

[0052]

[0053] Similarly, the integral equation can be used to find out how much material enters the dryer during the T2 time flow, that is:

[0054]

[0055] The materials in the process will be sprayed with grease after batch weighing and calibration of the sprayer, and then discharged as finished products. 喷涂 kg is equal to the sum of the actual weights of the spray machine weighing calibrations for each batch of production, that is:

[0056] W 喷涂 =W 1批 +W 2批 +W 3批 +K+W i批 .

[0057] During the expansion process, the dryer will take away excess moisture from the material, and the cooler will also take away some moisture, so the weight change of this part of the process should also be considered. 流失 kg. Assume that the moisture content of the material at the dryer inlet is H 烘干前 %, the moisture content of the material after drying is H 烘干后 %, then the weight of the material after drying in the process is:

[0058]

[0059] Similarly, if the material needs to pass through a cooler, assuming that the moisture content of the material before cooling is H 冷却前 %, moisture content of material after cooling H 冷却后 %, then the weight of the material after cooling is:

[0060]

[0061] Among them, W 冷却前 =W 烘干出 , H 冷却前 =H 烘干后 , the above formula is equal to:

[0062]

[0063] The remaining materials are sprayed in batches by the sprayer. This embodiment can predict the remaining weight W of the materials in the process through the previous algorithm. 剩余 kg, adjust the spray weight of each batch in advance in the last few batches to avoid the generation of tailings, that is, the spray weight of each batch in the last few batches can meet the minimum filling coefficient W of the sprayer. min .

[0064] The specific judgment and adjustment mechanism is as follows:

[0065] If the puffing production line is equipped with a cooler, then W 剩余 =W 冷却后 -W 喷涂 , otherwise W 剩余 =W 烘干出 -W 喷涂 , where W 喷涂 Indicates spray weight as W 每批 The total amount of spraying for n batches of spraying;

[0066] If W 剩余 ≥W min , then the last batch of spraying weight W n+1 Adjust to W 剩余 ;

[0067] If W 剩余 <W min , then calculate Is it not less than W? min If so, the last two batches of spray weight W n and W n+1 All adjusted to W p ;

[0068] If not, adjust the last two batches of spray weight to W q ,

[0069] Finally, the above judgment mechanism and corresponding algorithm are programmed through PLC (programmable logic controller) to effectively and reasonably control the weight of the last few batches of spraying, so as to achieve the purpose of puffing spraying without tail material.

[0070] Embodiment 2

[0071] According to an embodiment of the present invention, a device for processing expanded spray tailings is provided, such as Figure 2As shown, the processing device may include a processor, a communication interface, a memory and a communication bus, wherein the processor, the communication interface and the memory communicate with each other via the communication bus. The processor may call the logic instructions in the memory to execute the above-mentioned method for processing the expanded spray tail material.

[0072] In addition, the logic instructions in the above-mentioned memory can be implemented in the form of software functional units and can be stored in several computer-readable storage media when sold or used as independent products. Based on such an understanding, the technical solution of the present invention can be essentially or partly embodied in the form of a software product that contributes to the prior art. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, server or network device, etc.) to perform all or part of the steps of the method described in the first embodiment of the present invention. The aforementioned storage medium includes: various media that can store program codes, such as a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0073] The above-mentioned product can execute the method for processing expanded spray tailings in Example 1, and has the corresponding functional modules and beneficial effects of the method. For technical details not described in detail in this embodiment, please refer to the method for processing expanded spray tailings provided in Example 1 of the present invention.

[0074] Embodiment 3

[0075] According to an embodiment of the present invention, a computer-readable storage medium is provided, the type of which is as described in Example 2, and the computer-readable storage medium stores a computer program. When the computer program is executed by a processor, the processor executes the steps of the method for processing expanded spray tail material described in Example 1.

[0076] The above-mentioned product can execute the method for processing expanded spray tailings described in Example 1, and has the corresponding functional modules and beneficial effects of the method. For technical details not described in detail in this embodiment, please refer to the method for processing expanded spray tailings provided in Example 1 of the present invention.

[0077] Through the description of the above implementation methods, those skilled in the art can clearly understand that each implementation method can be implemented by means of software plus a general hardware platform, and of course, by hardware. Based on this understanding, the above technical solution, in essence, or the part that contributes to the relevant technology, can be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., including a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the methods described in each embodiment or some parts of the embodiment.

[0078] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and there are many other changes in different aspects of the present invention as described above. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for processing expanded spray tailings, characterized in that: The following steps are involved: S1. Get the real-time capacity of the extruder: The calculation formula for the real-time capacity of the extruder from time T1 to time T2 is: ， If T1 is the start-up time of the extruder, then , and there are: ； in, kg represents the real-time cumulative capacity of the extruder from time T1 to time T2, which is equal to the amount of material entering the dryer. kg / min is the capacity function of the extruder; S2. Calculate the material loss during the entire spraying process; S3. According to the real-time production capacity and material loss, estimate the last batch of materials entering the spraying machine after the extruder stops: The material loss includes the material moisture taken away by the dryer , assuming that the moisture content of the material at the dryer inlet is The moisture content of the material after drying is , then the weight of the material after drying is for: ； If the material needs to pass through a cooler after passing through the dryer, the material loss also includes the material moisture taken away by the cooler. Assuming that the material moisture ratio before cooling is , the moisture content of the material after cooling is , then the weight of the material after cooling for: ， in, , , the above formula is equal to: ； S4. According to the minimum filling coefficient of the sprayer and the estimated last batch of material quantity, adjust the single batch spraying quantity of the sprayer so that the spraying weight of the last batch of the sprayer is not less than the minimum filling coefficient of the sprayer: If the extruder production line is equipped with a cooler, the last batch of material entering the sprayer after the extruder stops ,in Indicates spray weight The total amount of spraying for n batches of spraying, assuming is the minimum filling coefficient of the sprayer, then: like , then the last batch of spray weight Adjust to ; like , then calculate and judge Is it not less than If so, the last two batches of spray weight and All adjusted to Otherwise, the last two batches of spray weight and All adjusted to .

2. The method for processing expanded spray tailings according to claim 1, characterized in that: In step S1, since the output port of the extruder is connected to the dryer, the real-time capacity of the extruder is obtained by the amount of material entering the dryer: the material layer thickness H cm at the dryer inlet is detected in real time at the dryer inlet to obtain the amount of material entering the dryer from time T1 to time T2: ， ， If T1 is the initial feeding time of the dryer entrance, then , and there are: ； in, kg represents the amount of material entering the dryer from time T1 to time T2, cm³ is the volume of material entering the dryer at t min time, kg / L is the bulk density of the material entering the dryer. cm / min represents the moving speed of the bed for transporting materials, and D cm is the width of the bed.

3. A method for processing expanded spray tailings as claimed in claim 1, characterized in that: If the extruder production line does not have a cooler, the last batch of material entering the sprayer after the extruder stops .

4. A device for processing expanded spray tail material, comprising a memory, a processor and a computer program stored and running on the memory, characterized in that: When the processor executes the program, the steps of the processing method according to any one of claims 1 to 3 are implemented.

5. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program. When the computer program is executed by a processor, the processor executes the steps of the processing method according to any one of claims 1 to 3.

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