Sintered ore batching proportion control method and device, electronic equipment and storage medium

Abstract

The invention provides a method and device for controlling the burdening proportion of sintered ore, electronic equipment and a storage medium, and relates to the field of industrial digitization. Comprising the steps that a target raw material is determined from N raw materials, and the N raw materials are raw materials of the current sinter production technological process; acquiring a set speed of the target raw material; the set speed is used as the initial reference speed of discharging treatment of a discharging machine in the current sinter production technological process, and the actual discharging speed of the target raw material is obtained in the process that the discharging machine is controlled to conduct discharging treatment according to the initial reference speed; based on the set speed and the actual blanking speed, determining a target difference compensation proportion; and determining a new reference speed based on the target complementary difference proportion, and controlling the blanking machine to carry out blanking processing according to the new reference speed, so that a new actual blanking speed obtained in the blanking processing process according to the new reference speed is close to the set speed.

Description

Technical Field

[0001] The present invention relates to the field of industrial digitalization, and in particular to a method, device, electronic equipment and storage medium for controlling the proportion of sintered ore ingredients. Background Art

[0002] In the batching processing line of the sintering plant, in order to ensure the stability of the properties of the final product, there is generally a fixed batching ratio, and the accuracy of the material feeding determines the quality rate of the product. The feeding speed of various materials is automatically controlled by the computer according to the preset ratio. In order to stabilize the material level of the batching trough and ensure the constant material feeding speed, each batching trough is equipped with a weighing level meter, which can continuously display the measured value online.

[0003] In the related technology, the proportional-integral-derivative control (PID) control method is usually used to adjust fixed parameters. This adjustment technology analyzes and compares the difference between the speed of the weighing belt conveyor and the feeding weight speed per second, and then changes the belt speed to change the feeding speed. However, since this adjustment method does not consider the mutual influence between the adjustment devices during the adjustment process and the adaptability under different working conditions, it is easy to cause the error of the single product feeding speed in the total speed to become larger and larger, so that the feeding ratio between each single product will gradually deviate from the original set ratio. Summary of the invention

[0004] The present invention provides a control method, device, electronic device and storage medium for the proportion of sintered ore, which are used to solve the problem in the related art that the material feeding speed is adjusted by changing the belt running speed, resulting in a large error between the material feeding speed and the original set ratio.

[0005] In a first aspect, the present invention provides a method for controlling the proportion of sintered ore ingredients, the method comprising:

[0006] Determine a target raw material from N kinds of raw materials, wherein the N kinds of raw materials are raw materials for a current sinter production process;

[0007] Get the set speed of the target raw material;

[0008] The set speed is used as the initial reference speed of the material feeder for material feeding in the current sintering ore production process, and in the process of controlling the material feeder to feed according to the initial reference speed, the actual material feeder speed of the target raw material is obtained;

[0009] Determine a target compensation ratio based on the set speed and the actual material feeding speed;

[0010] Based on the target compensation ratio, a new reference speed is determined, and the feeder is controlled to perform feed processing according to the new reference speed, so that the new actual feed speed obtained during the feed processing according to the new reference speed is close to the set speed.

[0011] Optionally, obtaining the set speed of the target raw material includes: obtaining a first ratio of the target raw material, the first ratio being set based on a sintered ore production standard, and being the ratio of the dry weight of the target raw material to the sum of the dry weights of the N raw materials; and determining the set speed of the target raw material based on the first ratio.

[0012] Optionally, determining the target compensation ratio based on the set speed and the actual feeding speed includes: determining a second ratio of the target raw material according to the actual feeding speed, the second ratio being the ratio of the actual feeding amount of the target raw material to the sum of the actual feeding amounts of the N raw materials; determining the target compensation ratio based on the first ratio and the second ratio.

[0013] Optionally, determining a new reference speed based on the target compensation ratio includes: determining the new reference speed according to a product of the target compensation ratio and the initial reference speed.

[0014] Optionally, before determining the set speed of the target raw material based on the first ratio, it also includes: detecting whether the first ratio is reasonable; if reasonable, determining the set speed of the target raw material based on the first ratio; if unreasonable, re-acquiring the first ratio.

[0015] Optionally, after controlling the unloading machine to perform unloading processing according to the new reference speed, the method further comprises: in the current sintered ore production process, re-determining the target compensation ratio every first time.

[0016] In a second aspect, the present invention provides a device for controlling the proportion of sintered ore, the device comprising:

[0017] A determination module, used to determine a target raw material from N kinds of raw materials, wherein the N kinds of raw materials are raw materials for the current sinter production process;

[0018] An acquisition module, used for acquiring a set speed of a target raw material;

[0019] The acquisition module is further used to use the set speed as the initial reference speed of the material feeder for material feeding in the current sintering ore production process, and to obtain the actual material feeding speed of the target raw material in the process of controlling the material feeder to feed according to the initial reference speed;

[0020] The determination module is further used to determine a target compensation ratio based on the set speed and the actual material feeding speed;

[0021] The determination module is also used to determine a new reference speed based on the target compensation ratio, and control the unloading machine to perform unloading processing according to the new reference speed, so that the new actual unloading speed obtained during the unloading processing according to the new reference speed is close to the set speed.

[0022] The third invention, the present invention also provides an electronic device, comprising:

[0023] processor;

[0024] a memory for storing instructions executable by the processor;

[0025] The processor is configured to execute the instructions to implement the method as described in the first aspect.

[0026] In a fourth aspect, the present invention further provides a storage medium, which, when instructions in the storage medium are executed by a processor of an electronic device, enables the electronic device to execute the method provided in the first aspect.

[0027] In a fifth aspect, the present invention further provides a computer program product, comprising a computer program, wherein the computer program is executed by a processor according to the method provided in the first aspect.

[0028] The present invention provides a method for controlling the proportion of sintered ore, specifically, determining a target raw material from N kinds of raw materials, wherein the N kinds of raw materials are raw materials for a current sintered ore production process; obtaining a set speed for the target raw material; using the set speed as an initial reference speed for a feeder to perform a feeding process in the current sintered ore production process, and obtaining an actual feeding speed of the target raw material in the process of controlling the feeder to perform a feeding process according to the initial reference speed; determining a target compensation ratio based on the set speed and the actual feeding speed; determining a new reference speed based on the target compensation ratio, and controlling the feeder to perform a feeding process according to the new reference speed, so that the new actual feeding speed obtained in the process of performing a feeding process according to the new reference speed is close to the set speed. In this way, in the process of the unloading machine unloading materials according to the reference speed, the target compensation ratio is determined based on the set speed and the actual unloading speed, and the new reference speed is determined based on the target compensation ratio. The unloading speed of the unloading machine is dynamically adjusted so that the actual unloading amount finally obtained is close to the production standard of sintered ore. This solves to a certain extent the problem in the related technology that the unloading amount is adjusted by changing the belt running speed, which leads to a large error between the unloading amount and the original set ratio. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0030] Figure 1 A flow chart of a method for controlling the proportion of sintered ore provided in an embodiment of the present invention;

[0031] Figure 2 A structural block diagram of a device for controlling the proportion of sintered ore provided in an embodiment of the present invention;

[0032] Figure 3 A structural block diagram of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0033] Hereinafter, embodiments of the present disclosure will be described with reference to the accompanying drawings, but it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present disclosure.

[0034] As described in the background technology, in the batching processing line of the sintering plant, in order to ensure the stability of the properties of the final product, there is generally a fixed batching ratio, and the accuracy of the feeding determines the quality of the product. In order to ensure the accuracy of the batching, various raw materials, such as mixed ore, fuel, flux, blast furnace return ore, internal return ore, and dust are concentrated in the batching room and weight batching is adopted. Mixed ore, flux, fuel, blast furnace return ore, and internal return ore are fed by a disc feeder plus an electronic belt scale; quicklime and dust are fed by a star-shaped ash discharge valve plus a spiral feeder plus an electronic belt scale, wherein the dust is humidified by a humidifier and then discharged into the mixing material belt conveyor in the batching room. The above various materials are automatically controlled by the computer according to the preset ratio. In order to stabilize the material level of the batching trough and ensure the constant material feeding amount, each batching trough is equipped with a weighing level meter, which can continuously display the measured value online. In order to strengthen the granulation of the mixture and improve the air permeability of the mixture, the design adopts two-stage mixing and appropriately extends the mixing time. The mixing equipment is a cylindrical mixer. The purpose of primary mixing is to mix and add water. The mixer size is Φ5000×21000mm and the mixing time is 3.88min. The secondary mixing is mainly to granulate and adjust the moisture content of the mixture. The mixer size is Φ5000×24000mm and the mixing time is 4.09min. The water addition speed of the mixture is automatically controlled.

[0035] At present, the commonly used batching processing line control adopts PID fixed parameter adjustment. This adjustment technology analyzes and compares the difference between the weighing belt conveyor running speed and the feeding weight per second, and then changes the belt running speed to change the feeding amount. This adjustment method is an extensive adjustment, which does not consider the mutual influence between the adjustment devices during the adjustment process and the adaptability under different working conditions. Especially after long-term feeding, due to the error in the feeding process, the extensive adjustment will cause the error of the single product feeding amount in the total amount to become larger and larger, and finally affect the composition ratio of each product in the feeding.

[0036] In this regard, the present invention provides a method for controlling the proportion of sintered ore ingredients, specifically, determining a target raw material from N kinds of raw materials, wherein the N kinds of raw materials are raw materials for a current sintered ore production process; obtaining a set speed for the target raw material; using the set speed as an initial reference speed for a feeder to perform feeding processing in the current sintered ore production process, and obtaining an actual feeding speed of the target raw material in the process of controlling the feeder to perform feeding processing according to the initial reference speed; determining a target compensation ratio based on the set speed and the actual feeding speed; determining a new reference speed based on the target compensation ratio, and controlling the feeder to perform feeding processing according to the new reference speed, so that the new actual feeding speed obtained in the process of performing feeding processing according to the new reference speed is close to the set speed. In this way, in the process of the unloading machine unloading materials according to the reference speed, the target compensation ratio is determined based on the set speed and the actual unloading speed, and the new reference speed is determined based on the target compensation ratio. The unloading speed of the unloading machine is dynamically adjusted so that the actual unloading amount finally obtained is close to the production standard of sintered ore. This solves to a certain extent the problem in the related technology that the unloading amount is adjusted by changing the belt running speed, which leads to a large error between the unloading amount and the original set ratio.

[0037] It should be understood that the control method of the sintered ore batching ratio provided in the embodiment of the present invention can be executed by a target device, and the target device can be a control device of a feeder. The target device can be one electronic device, or multiple electronic devices can cooperate with each other to execute. The electronic device can be a server, such as an independent physical server, a server cluster composed of multiple servers, and a cloud server capable of cloud computing.

[0038] In addition, before introducing the embodiments provided by the present invention, it should be understood that in the embodiments of the present invention, the unloading machine can also be other equipment such as a discharge machine for unloading processing. Correspondingly, the unloading processing can also be equivalent to the discharge processing, which is the process of placing a certain weight of raw materials into the groove space or other designated location through a machine (unloading machine / discharge machine).

[0039] The technical solution of the present invention and how the technical solution of the present invention solves the above-mentioned technical problems are described in detail below with specific embodiments. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present invention will be described below in conjunction with the accompanying drawings.

[0040] Figure 1 Flow chart of the method for controlling the proportion of sintered ore provided in an embodiment of the present invention. Figure 1 As shown, the method for controlling the proportion of sintered ore provided in the embodiment of the present invention includes steps 110 to 150.

[0041] Step 110, determining a target raw material from N kinds of raw materials, wherein the N kinds of raw materials are raw materials for the current sintered ore production process.

[0042] In the embodiment of the present invention, the N kinds of raw materials may be raw materials of the current sintering ore production process, such as mixed materials, fuel, flux (limestone, dolomite, quicklime), dust, blast furnace return ore and internal return ore, etc. The target raw material may be any one of the N kinds of raw materials.

[0043] In the embodiment of the present invention, N ore slots may be set according to N kinds of raw materials so as to place the raw materials dropped by the feeder. Furthermore, in the embodiment of the present invention, the target raw materials may be represented in the form of slot numbers.

[0044] In the embodiment of the present invention, the method for controlling the proportion of sintered ore described herein may be simultaneously executed for N kinds of raw materials.

[0045] Step 120, obtaining a set speed of the target raw material.

[0046] In an embodiment of the present invention, N kinds of raw materials will be integrated in a certain proportion according to the production standard of sintered ore. After the target raw material is determined, the set speed of the target raw material can be obtained. In order to obtain the set speed, the proportion of the target raw material in the N kinds of raw materials according to the production standard of sintered ore can be determined first, and then the estimated total weight of the target raw material can be obtained based on the proportion and the total weight of the N kinds of raw materials.

[0047] In an embodiment of the present invention, the set speed can represent the ideal unloading speed of the unloading machine. Specifically, the setting can be obtained based on the estimated total weight of the target raw materials and the estimated production time of the current sintered ore production process, for example, by dividing the estimated total weight of the target raw materials by the estimated production time of the current sintered ore production process.

[0048] Step 130, using the set speed as the initial reference speed of the feeder for feeding in the current sintered ore production process, and obtaining the actual feeding speed of the target raw material while controlling the feeder to feed according to the initial reference speed.

[0049] In an embodiment of the present invention, after obtaining the set speed of the target raw material, the set speed can be used as the initial reference speed for the unloading machine to unload materials in the current sintered ore production process, so that the unloading machine can unload materials according to the unloading speed represented by the initial reference speed.

[0050] In the embodiment of the present invention, during the process of the material feeder performing the material feed processing, two different control modes are included. When the computer system control mode is used, the material feeder can compare the set value with the measured value, and output the control signal to the batching device through PI control operation to complete the batching control; when the control mode is PLC setting and instrument control mode, the target device outputs the set value to the batching secondary instrument, and the batching secondary instrument completes the automatic control of the material feeder. The selection switch is set on the batching scale instrument, and its status is displayed on the screen.

[0051] In an embodiment of the present invention, in the process of controlling the unloading machine to perform unloading processing according to the initial reference speed, the actual unloading speed of the target raw material can also be directly measured by a measuring device, and the measured actual unloading speed can be transmitted to the target device so that the target device executes step 140.

[0052] Step 140: determining a target compensation ratio based on the set speed and the actual material feeding speed.

[0053] In an embodiment of the present invention, in order to make the actual unloading speed more accurate, a target compensation ratio can be determined based on the set speed and the actual unloading speed. The target compensation ratio can characterize the difference between the actual unloading amount and the preset unloading amount caused by the accuracy difference of the unloading machine equipment, and then step 150 is executed to timely adjust the reference speed based on the accuracy of the unloading machine.

[0054] Step 150, based on the target compensation ratio, determine a new reference speed, and control the unloading machine to perform unloading processing according to the new reference speed, so that the new actual unloading speed obtained during the unloading processing according to the new reference speed is close to the set speed.

[0055] In an embodiment of the present invention, a new reference speed may be determined based on the target compensation ratio. For example, the material unloading speed corresponding to the target compensation ratio may be increased on the basis of the initial reference speed, and the increased number may be used as the new reference speed.

[0056] In an embodiment of the present invention, a new reference speed can be used to guide the feeder to perform reference feeding. After determining the new reference speed, the feeder is controlled to perform feeding processing according to the new reference speed. In the process of feeding processing according to the new reference speed, the new actual feeding speed can still be obtained in real time. Steps 140 to 150 are repeatedly executed. Such a cycle makes the new actual feeding speed close to the set speed, so that the final actual feeding amount is close to the production standard of sintered ore, thereby improving the accuracy of the sintered ore production process.

[0057] In this way, in the process of the unloading machine unloading materials according to the reference speed, the target compensation ratio is determined based on the set speed and the actual unloading speed, and the new reference speed is determined based on the target compensation ratio. The unloading speed of the unloading machine is dynamically adjusted so that the actual unloading amount is close to the set amount. This solves to a certain extent the problem in the related art that the unloading amount is adjusted by changing the belt running speed, which leads to a large error between the unloading amount and the original set ratio.

[0058] In an embodiment of the present invention, an implementation method of step 120 may include: obtaining a first ratio of the target raw material, where the first ratio is set based on the sintered ore production standard, and is the ratio of the dry weight of the target raw material to the sum of the dry weights of the N raw materials; and determining a set speed for the target raw material based on the first ratio.

[0059] In an embodiment of the present invention, the first ratio of the target raw materials can represent the ideal situation based on the sintered ore production standard (such as the chemical composition of the sintered ore and the requirements of the blast furnace for the sintered ore), which is the ratio of the dry weight of the target raw material to the sum of the dry weights of the N raw materials. The dry weight of the target raw material can be understood as the weight of the effective ingredients in the target raw material.

[0060] In an embodiment of the present invention, after obtaining the first ratio, the matching coefficient of the target raw material can be obtained according to the first ratio and the corresponding moisture content of the target raw material, and then the set speed of the target raw material can be obtained through the matching coefficient, wherein the matching coefficient of the target raw material represents the proportional coefficient between the wet weight of the target raw material and the sum of the wet weights of N raw materials.

[0061] For example, the matching coefficient of the target raw material is calculated by the following formula:

[0062]

[0063] Among them, HK i is the matching coefficient of the target raw material (here, the i number represents the slot number of the target raw material in the N ore slots); C i is the first ratio; H iis the moisture content of the target raw material; K is the total wet weight of N kinds of raw materials.

[0064] In the embodiment of the present invention, since the moisture content of each raw material in the batching room is not measured online, in order to ensure the accuracy and stability of the mixed material composition, the moisture content of the target raw material can be manually analyzed and measured periodically (for example, once a day) and input into the computer system in time. If the moisture content exceeds the specified value, an abnormal moisture content alarm signal is issued, which is confirmed by the operator. After the input moisture content data is confirmed, it is used as H i Participate in the calculation of the fit coefficient described above.

[0065] After obtaining the matching coefficient of the target raw material, the set speed of the target raw material can be obtained from the matching coefficient by the following formula:

[0066] W i =Wt s *HK i

[0067] Where i is the slot number of the target raw material in the N mining slots, Ws i is the set speed of the target raw material; Wt s It is the sum of the set speeds of all slots when the feeder performs feed processing in the current process (it can be obtained by dividing the sum of the wet speeds of N kinds of raw materials by the preset time of the current process); HK i is the matching coefficient of the target raw material obtained by the formula described above.

[0068] In the embodiment of the present invention, when the equipment slot change stops (that is, the target raw material is no longer changed), or the feeder stops due to a failure, the last calculation result can be kept.

[0069] The comprehensive conveying speed (Wt s ) can be calculated based on the material level control function of the mixture hopper, or can be manually set by the operator based on actual production conditions.

[0070] Since the positions of the batching troughs are different, the setting speed of each ore trough can be delayed and set according to the sequence of the ore trough positions at a certain time interval (i.e. the transportation time of materials between adjacent ore troughs) to ensure that the composition of the mixture meets the requirements at each point. This will prevent the batching system from having a disordered ratio when it starts and stops in sequence or when the ratio changes.

[0071] In the embodiment of the present invention, the set speed is obtained by using the first ratio, so that the set speed can be more consistent with the production standard of sintered ore, thereby making the production result more accurate.

[0072] In an embodiment of the present invention, in the current sintered ore production process, a method for implementing step 140 of determining the target compensation ratio based on the set speed and the actual feeding speed includes: determining a second ratio of the target raw material according to the actual feeding speed, the second ratio being the ratio of the actual feeding amount of the target raw material to the sum of the actual feeding amounts of the N raw materials; and determining the target compensation ratio based on the first ratio and the second ratio.

[0073] In the embodiment of the present invention, after the actual material feeding speed is obtained, the second proportion of the target raw material can be obtained by the following formula:

[0074]

[0075] W Z =Wt i *Ws i

[0076] Among them, W p is the second ratio; W Z is the total amount of target raw materials cut out (i.e., put down) by the feeder within a certain time period (e.g., the first time described below) in the current sintering process; W is the sum of the total amounts of N kinds of raw materials cut out by the feeder within a certain time period (e.g., the first time described below) in the current sintering process; Wt i Ws is the cutting time of the feeder for the slot numbered i (i.e., the target raw material) in the current sintering process; i It is the actual unloading speed of the unloading machine for the slot numbered i (ie, the target raw material) in the current sintering process.

[0077] In the embodiment of the present invention, Wt i The cut-out time indicated can be a certain period of time, for example, the time from the last reference speed adjustment to the next reference speed adjustment. Z and W can be obtained by real-time monitoring of the weight of the ore trough in the current sintering process.

[0078] In an embodiment of the present invention, in order to make the numerical value of the target compensation ratio clearer, the meanings represented by the parameters can be unified in the process of calculating the target compensation ratio. For example, in the process of calculating the target compensation ratio, the preset dry weight ratio (preset total dry weight) of the target raw material can be used to characterize the ratio, and the actual dry weight ratio (actual total dry weight) of the target raw material can be used to calculate. The actual dry weight ratio of the target raw material can be directly obtained by measurement, and can also be calculated by the actual wet weight ratio (actual total wet weight) of the target raw material (i.e., the second ratio) and the moisture content.

[0079] In the embodiment of the present invention, the ratio of the preset moisture content of the target raw material to the (preset total moisture content) (i.e., the matching coefficient obtained by the first ratio as described above) and the ratio of the actual moisture content of the target raw material to the (actual total moisture content) (i.e., the second ratio) can also be used to calculate the ratio. For example, as shown in the following formula:

[0080]

[0081] Among them, TMP is the target compensation ratio; HK i W is the matching coefficient calculated by the above formula based on the first ratio; p is the second ratio calculated by the above formula.

[0082] In the embodiment of the present invention, a range may be preset for the target compensation ratio, for example, -10% to +10%. When the calculated ratio exceeds the range, the closest value in the preset range may be used as the target compensation ratio finally used.

[0083] In the embodiment of the present invention, after obtaining the target compensation ratio, one implementation of determining a new reference speed based on the target compensation ratio in step 150 includes: determining the new reference speed according to the product of the target compensation ratio and the initial reference speed.

[0084] In the embodiment of the present invention, the new reference speed may be determined by the following formula:

[0085] W s =W i *TMP

[0086] Among them, W s is the new reference speed; W i is the initial reference speed; TMP is the target compensation ratio mentioned above.

[0087] In the embodiment of the present invention, in order to make the new reference speed more accurate, a certain error adjustment calculation method may be added, for example, an error parameter is introduced based on the calculation of the above formula.

[0088] In an embodiment of the present invention, in order to ensure the accuracy of the first ratio, before determining the set speed of the target raw material based on the first ratio, it also includes: detecting whether the first ratio is reasonable; if it is reasonable, determining the set speed of the target raw material based on the first ratio; if it is unreasonable, re-acquiring the first ratio.

[0089] In the embodiment of the present invention, whether the first ratio is reasonable can be detected by detecting whether the sum of the first ratios of N raw materials is 100%, or by detecting whether the first ratio of the target raw material meets a preset range.

[0090] In an embodiment of the present invention, when using multiple methods to detect whether the first ratio is reasonable, the first ratio that satisfies multiple methods at the same time can be regarded as reasonable, and then the set speed of the target raw material is determined based on the first ratio; if it does not satisfy any detection method, it is considered unreasonable, and the first ratio can be re-obtained, thereby improving the accuracy of the set speed.

[0091] In the embodiment of the present invention, in order to make the final sintered ore production output close to the preset production output, after controlling the feeder to perform feed processing according to the new reference speed, the method further includes: in the current sintered ore production process, re-determining the target compensation ratio every first time. The first time can be understood as Wt mentioned above. i , can also be understood as the frequency of operator shift changes.

[0092] In addition, in the embodiments of the present invention, there are some situations in which the target compensation ratio can be re-determined, for example, when the first ratio is changed (for example, entering the next sintering ore process flow), or when the moisture content changes, or when the slot position of the target raw material is changed (which can be understood as when the target raw material is replaced).

[0093] In order to better understand the method for controlling the proportion of sintered ore provided in the embodiment of the present invention, an example is given. It should be understood that the example is not limiting.

[0094] Taking a certain production process of sintered ore as an example, the raw materials used include mixed material, fuel, flux (limestone, dolomite, quicklime), dust, blast furnace return ore and internal return ore. The process of automatically feeding these raw materials according to the required proportion is called automatic control of the batching system.

[0095] There are 15 ore troughs in the batching room (N is 15 at this time), and the raw materials are as follows: 1#~5# ore troughs are mixed materials; 6# ore trough is dolomite; 7# ore trough is limestone; 8#~9# ore troughs are fuel; 10# ore trough is blast furnace return ore; 11#~12# ore troughs are internal return ore; 13# ore trough is dust; 14#~15# ore troughs are quicklime. In addition, new raw materials refer to other raw materials except fuel, return ore and dust, namely, homogenizing ore, flux, quicklime, etc.

[0096] After determining the raw materials in N, the operator sets the proportion of each raw material on the operation station (i.e., the first proportion mentioned above). Before each change in the proportion, the rationality check of the new raw material proportion must be carried out to determine whether the powder coke proportion + the return ore proportion + the internal dust proportion is 100%, the powder coke proportion is less than k (k is a constant, with an upper limit K1 and a lower limit K2), and the total proportion of the new raw materials (homogeneous ore + solvent + sintering powder + external dust) is equal to 100. If any of the above three conditions is not met, the computer system will send an alarm prompt. At this time, the operator must re-set the proportion and perform rationality tests. After passing the test, the first allocation is allocated to the corresponding ore bin, and the material is automatically unloaded through the unloading machine.

[0097] Specifically, the ratio of coke powder + return ore + internal dust should be less than 100:

[0098]

[0099] Among them, C i is the powder coke ratio (%); r i is the return ore mix ratio (%); R i is the internal dust mix ratio (%).

[0100] The powder coke ratio is greater than K1 and less than K2:

[0101]

[0102] The total proportion of new raw materials (homogeneous ore + solvent + external dust) is equal to 100%:

[0103]

[0104] m i is the new raw material ratio (%).

[0105] After the rationality test is performed and the first ratio is determined, the set speed of the target raw material can be determined based on the first ratio. First, the matching coefficient can be calculated based on the first ratio by the following formula:

[0106] New raw material matching coefficient formula:

[0107]

[0108] Return ore matching coefficient formula:

[0109]

[0110] Internal dust matching coefficient formula:

[0111]

[0112] Formula for powder coke matching coefficient:

[0113]

[0114] The parameters of the above formula are:

[0115] Among them, C i is the powder coke ratio (%); r i is the return ore mix ratio (%); R i is the internal dust mix ratio (%); m i is the new raw material ratio (%); H i is the moisture content (%) of the target raw material.

[0116] You can recalculate the fit factor in the following situations:

[0117] When the mix ratio (i.e., the first ratio) changes: When the mix ratio changes due to various reasons such as raw material composition, the mix coefficient must be recalculated.

[0118] When the moisture content is changed: When the moisture content is changed manually according to the actual production situation, the matching coefficient needs to be recalculated.

[0119] Fixed cycle: when the raw material delivery tracking cycle arrives (which can be understood as the next sintering ore production process).

[0120] When the slot is changed (i.e., when the target raw material is changed).

[0121] After obtaining the matching coefficient, the set speed of each ore bin discharge can be obtained by the following formula based on the matching coefficient.

[0122] W i =Wt s *HK i

[0123] Where i is the slot number of the target raw material in the N mining slots, Ws i is the set speed of the target raw material; Wt s It is the ideal sum of all slots’ unloading speeds when the unloading machine is unloading in the current process (it can be obtained by dividing the sum of the wet speeds of N kinds of raw materials by the preset time of the current process); HK i is the matching coefficient of the target raw material obtained by the formula described above.

[0124] After the set speed is calculated, the set speed can be used as the initial reference speed of the feeder to enter the automatic feed process. In the automatic feed process, the final reference speed should be calculated based on the actual feed speed, where the actual feed speed can be directly obtained from the report consisting of the data obtained by the detection device. In the process of calculating the final reference speed, the actual cutting speed W of each slot can be obtained first.i , calculate the total amount of each slot cut out in the first time W Z , and then further calculate the actual material ratio of each slot, and finally get the compensation ratio TMP. Finally, by calculating the compensation ratio of each slot, the new reference speed is finally obtained.

[0125] In addition, in the automatic material unloading process, the target compensation ratio can be recalculated in the following situations:

[0126] 1. When changing shifts or changing the ratio (i.e., the first ratio), that is, when the ratio percentage changes, the difference will be reset to zero;

[0127] 2. When the CFW center is running continuously, the compensation difference is calculated every 3 minutes (i.e., the first time);

[0128] 3. The compensation limit is -10% to +10%.

[0129] For the specific calculation process, please refer to the calculation of the target compensation ratio above.

[0130] The method for controlling the proportion of sintered ore provided by the embodiment of the present invention can achieve the following advantages:

[0131] 1) Calculate various process values ​​during the cutting process and finally form a report.

[0132] In order to have a more intuitive understanding of the on-site unloading situation, it is necessary to calculate various values, such as the total unloading amount of each single product and the total unloading amount of all single products, as well as the real-time ratio of the final unloading amount, so as to compare the actual unloading ratio with the set ratio (first ratio), and further calculate the deviation between the current unloading amount and the set unloading amount. The set value SP in the PID adjustment is changed through the deviation, thereby infinitely narrowing the gap with the set value. The specific gap accuracy of the unloading is determined by the calculable accuracy of the PLC and the unloading accuracy of the equipment, and generally requires 0.01.

[0133] 2) Compensation calculation of SP value of CFW of blanking equipment

[0134] In the present invention, the SP value of the feeding equipment CFW is not always fixed. In the mixing process of the entire production line, the amount is quite large. For the feeding machine, changing the numerical value of the SP value to adjust the overall ratio is the simplest and most direct way. However, simply changing the size is difficult to ensure that the overall feeding ratio is consistent with the numerical ratio. By calculating the actual feeding ratio and the actual set feeding (i.e., reference speed) ratio, calculating the difference and dynamically adjusting the SP value can maximize the guarantee that the overall ratio is infinitely close to the set ratio.

[0135] Figure 2A device for controlling the proportion of sintered ore provided in an embodiment of the present invention is characterized in that the device includes a determination module 210 and an acquisition module 220 .

[0136] A determination module 210 is used to determine a target raw material from N kinds of raw materials, where the N kinds of raw materials are raw materials for the current sinter production process;

[0137] An acquisition module 220 is used to acquire a set speed of a target raw material;

[0138] The acquisition module 220 is further used to use the set speed as the initial reference speed of the material feeder for material feeding in the current sintering ore production process, and to obtain the actual material feeding speed of the target raw material in the process of controlling the material feeder to feed according to the initial reference speed;

[0139] The determination module 210 is further used to determine a target compensation ratio based on the set speed and the actual material feeding speed;

[0140] The determination module 210 is also used to determine a new reference speed based on the target compensation ratio, and control the blanking machine to perform blanking processing according to the new reference speed, so that the new actual blanking speed obtained during the blanking processing according to the new reference speed is close to the set speed

[0141] It should be noted that the embodiment of the control device for the sintered ore batching ratio in this specification and the embodiment of the steel performance prediction method in this specification are based on the same inventive concept. Therefore, the specific implementation method of this embodiment can refer to the corresponding embodiment of the steel performance prediction method in the previous text, and the repeated parts will not be repeated.

[0142] Figure 3 A structural block diagram of an electronic device provided for the implementation of the present invention. Figure 3 As shown, the electronic device provided by the embodiment of the present invention includes a processor 310 and a memory 320, wherein the memory is used to store instructions executable by the processor; wherein the processor is configured to execute the instructions to implement the above method.

[0143] In an exemplary embodiment, the electronic device may be implemented by one or more application specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSPDs), programmable logic devices (PLDs), field programmable gate arrays (FPGAs), controllers, microcontrollers, microprocessors or other electronic components to perform the above methods.

[0144] In an exemplary embodiment, a non-transitory computer-readable storage medium including instructions is also provided, such as a memory including instructions, and the instructions can be executed by a processor of a device to perform the above method. For example, the non-transitory computer-readable storage medium can be a ROM, a random access memory (RAM), a CD-ROM, a tape, a floppy disk, and an optical data storage device. The non-transitory computer-readable storage medium, when the instructions in the storage medium are executed by a processor of an electronic device, enables the electronic device to perform the above method.

[0145] The present invention also provides a computer program product, comprising a computer program, which implements the above method when executed by a processor.

[0146] In the above description, the technical details such as the patterning of each layer are not described in detail. However, those skilled in the art should understand that various technical means can be used to form layers, regions, etc. of desired shapes. In addition, in order to form the same structure, those skilled in the art can also design methods that are not completely the same as the methods described above. In addition, although the various embodiments are described above separately, this does not mean that the measures in the various embodiments cannot be used in combination to advantage.

[0147] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0148] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A method for controlling the proportion of sintered ore, characterized in that: The method comprises: Determine a target raw material from N kinds of raw materials, wherein the N kinds of raw materials are raw materials for a current sinter production process; Get the set speed of the target raw material; The set speed is used as the initial reference speed of the material feeder for material feeding in the current sintering ore production process, and in the process of controlling the material feeder to feed according to the initial reference speed, the actual material feeder speed of the target raw material is obtained; Determining a target compensation ratio based on the set speed and the actual material feeding speed; Based on the target compensation ratio, a new reference speed is determined, and the feeder is controlled to perform feed processing according to the new reference speed, so that the new actual feed speed obtained during the feed processing according to the new reference speed is close to the set speed.

2. The method according to claim 1, characterized in that The step of obtaining the set speed of the target raw material comprises: Obtaining a first ratio of the target raw material, where the first ratio is set based on a sintered ore production standard and is a ratio of the dry weight of the target raw material to the total dry weight of the N raw materials; The target raw material set speed is determined based on the first ratio.

3. The method according to claim 2, characterized in that The step of determining a target compensation ratio based on the set speed and the actual material feeding speed includes: Determine a second ratio of the target raw material according to the actual material feeding speed, where the second ratio is a ratio of an actual material feeding amount of the target raw material to a total of actual material feeding amounts of the N raw materials; The target compensation ratio is determined based on the first ratio and the second ratio.

4. The method according to claim 1, characterized in that The step of determining a new reference speed based on the target compensation ratio includes: The new reference speed is determined according to the product of the target compensation ratio and the initial reference speed.

5. The method according to claim 2, characterized in that: Before determining the set speed of the target raw material based on the first ratio, the method further includes: detecting whether the first ratio is reasonable; If reasonable, determining the set speed of the target raw material based on the first ratio; If it is unreasonable, the first ratio is obtained again.

6. The method according to claim 1, characterized in that After controlling the blanking machine to perform blanking processing according to the new reference speed, the method further includes: In the current sinter ore production process, the target compensation ratio is re-determined at regular intervals.

7. A device for controlling the proportion of sintered ore, characterized in that: The device comprises: A determination module, used to determine a target raw material from N kinds of raw materials, wherein the N kinds of raw materials are raw materials for the current sinter production process; An acquisition module, used for acquiring a set speed of a target raw material; The acquisition module is further used to use the set speed as the initial reference speed of the material feeder for material feeding in the current sintering ore production process, and to obtain the actual material feeding speed of the target raw material in the process of controlling the material feeder to feed according to the initial reference speed; The determination module is further used to determine a target compensation ratio based on the set speed and the actual material feeding speed; The determination module is also used to determine a new reference speed based on the target compensation ratio, and control the unloading machine to perform unloading processing according to the new reference speed, so that the new actual unloading speed obtained during the unloading processing according to the new reference speed is close to the set speed.

8. An electronic device, characterized in that: include: processor; a memory for storing instructions executable by the processor; The processor is configured to execute the instructions to implement the method according to any one of claims 1 to 6. 9 . A storage medium, when instructions in the storage medium are executed by a processor of an electronic device, the electronic device is enabled to execute the method as claimed in any one of claims 1 to 6.

10. A computer program product, comprising a computer program, wherein the computer program is used by a processor to execute the method according to any one of claims 1 to 6.

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