Crusher control method and crusher

Abstract

The invention relates to the technical field of material processing, in particular to a crusher control method and a crusher. According to the crusher control method, the target crushing parameters most suitable for the current material characteristics can be inquired according to the inlet material characteristic-crushing parameter relation table, and the crusher is made to operate according to the target crushing parameters; in addition, the inlet material feature-crushing parameter relation table can be updated and iterated, the crushing parameters in the table are changed until the materials produced by the crusher meet the standard, the outlet materials can be qualified without manual repeated tests, rapid updating learning can be carried out for different batches of materials, and the efficiency is improved. And the parameter setting time is greatly saved, so that the material crushing efficiency is improved. According to the crusher provided by the invention, rapid update learning can be carried out, the parameter setting time is greatly saved, and the material crushing efficiency is further improved.

Description

Technical Field

[0001] The present invention relates to the technical field of material processing, and in particular to a crusher control method and a crusher. Background Art

[0002] Crushing is one of the key links in modern mining, construction, environmental protection and other industries. As the main machine used in crushing, the crushing accuracy of the crusher directly affects the production cost and resource utilization.

[0003] Crusher in the prior art usually relies on manual control. After the hardness and particle size of the crushed material are manually checked, if they do not meet the standards, the motor speed of the crusher, the spacing between the crushing plates and other parameters need to be roughly adjusted until the material characteristics roughly meet the standards. However, the method of roughly adjusting the crushing parameters manually is inefficient, and it takes a lot of time to test. After changing a batch of materials, the test must be repeated, which greatly affects the crushing efficiency and crushing quality. Therefore, it is urgent to propose a crusher control method to solve this problem. Summary of the invention

[0004] An object of the present invention is to provide a crusher control method to solve the technical problems of low crushing efficiency and crushing quality of the crusher in the prior art.

[0005] Another object of the present invention is to provide a crusher to solve the technical problems of low crushing efficiency and low crushing quality of the crusher in the prior art.

[0006] As conceived above, the technical solution adopted by the present invention is:

[0007] A crusher control method, the crusher control method comprising:

[0008] Establish the relationship table between inlet material characteristics and crushing parameters;

[0009] Obtaining inlet material characteristics at the feed inlet of the crusher;

[0010] Determining target crushing parameters based on the inlet material characteristics and the inlet material characteristics-crushing parameter relationship table;

[0011] Controlling the crusher to operate according to the target crushing parameters, and detecting the outlet material characteristics in real time during the operation;

[0012] When the outlet material characteristics do not meet the target material characteristics, the crushing parameters in the inlet material characteristics-crushing parameter relationship table are adjusted and updated based on the difference between the outlet material characteristics and the target material characteristics, and the target crushing parameters are re-determined based on the updated inlet material characteristics-crushing parameter relationship table.

[0013] Optionally, the outlet material characteristic includes the outlet material particle size, the target material characteristic includes the target material particle size range, and the crushing parameter includes the crushing roller speed. Based on the difference between the outlet material characteristic and the target material characteristic, adjusting and updating the crushing parameters in the inlet material characteristic-crushing parameter relationship table specifically includes: when the outlet material particle size is lower than the target material particle size range, reducing the parameter value of the crushing roller speed; when the outlet material particle size is higher than the target material particle size range, increasing the parameter value of the crushing roller speed;

[0014] And / or, the outlet material characteristics include the outlet material particle size, the target material characteristics include the target material particle size range, the crushing parameters include the crushing channel gap between the crushing plate and the crushing roller, and based on the difference between the outlet material characteristics and the target material characteristics, adjusting and updating the crushing parameters in the inlet material characteristics-crushing parameter relationship table specifically include: when the outlet material particle size is lower than the target material particle size range, increasing the parameter value of the crushing channel gap; when the outlet material particle size is higher than the target material particle size range, reducing the parameter value of the crushing channel gap.

[0015] Optionally, when the outlet material particle size does not meet the target material particle size range, if a preset gap adjustment condition is met, the parameter value of the crushing channel gap is adjusted, otherwise the parameter value of the crushing roller rotation speed is adjusted.

[0016] Optionally, the preset gap adjustment condition includes: the current crushing channel gap is within a preset gap range, and the preset gap range is 30cm-50cm.

[0017] Optionally, when the outlet material particle size is outside the target material particle size range, the parameter value of the crushing channel gap is controlled to increase or decrease with a rated gap amplitude;

[0018] And / or, when the outlet material particle size is outside the target material particle size range, the parameter value of the crushing roller rotation speed is controlled to increase or decrease at the rated rotation speed amplitude.

[0019] Optionally, the crusher control method also includes: after the outlet material characteristics meet the target material characteristics, obtaining the current actual power consumption of the crusher; if the current actual power consumption exceeds the preset power consumption, adjusting and updating the crushing parameters in the inlet material characteristics-crushing parameter relationship table, and redetermining the target crushing parameters based on the updated inlet material characteristics-crushing parameter relationship table.

[0020] Optionally, the crushing parameter includes a crushing roller rotation speed, and when the current actual power consumption exceeds the preset power consumption, the parameter value of the crushing roller rotation speed is reduced;

[0021] And / or, the crushing parameter includes a crushing channel gap between a crushing plate and a crushing roller, and when the current actual power consumption exceeds the preset power consumption, the parameter value of the crushing channel gap is increased;

[0022] And / or, the crushing parameter includes adjusting an angle between the side plate and the wall of the feed channel, and when the current actual power consumption exceeds the preset power consumption, the parameter value of the adjustment angle is increased.

[0023] Optionally, when the current actual power consumption exceeds the preset power consumption, if the preset angle adjustment condition is met, the parameter value of the adjustment angle is increased; otherwise, the parameter value of the crushing roller speed is reduced or the parameter value of the crushing channel gap is increased.

[0024] Optionally, the crushing parameters include an adjustment angle between the adjustment side plate and the side wall of the feed channel, and the control method further includes: real-time detection of the inlet flow rate during the operation of the crusher, and adjusting the parameter value of the adjustment angle according to the inlet flow rate.

[0025] A crusher is used for being controlled to operate by the crusher control method.

[0026] Beneficial effects of the present invention:

[0027] A crusher control method proposed in the present invention can query the target crushing parameters that best suit the current material characteristics based on the input material characteristics-crushing parameter relationship table, and enable the crusher to operate according to the target crushing parameters. If the material output from the crusher outlet does not meet the standards, the input material characteristics-crushing parameter relationship table can be updated and iterated, and the crushing parameters in the table can be changed until the material output by the crusher meets the standards. Therefore, the export material can be qualified without repeated manual experiments, and fast update and learning can be performed when facing different batches of materials, which greatly saves the time for parameter setting and thereby improves the material crushing efficiency.

[0028] A crusher proposed in the present invention is controlled by a crusher control method, and can make the export materials qualified without repeated manual tests. It can also quickly update and learn when facing different batches of materials, which greatly saves the time for parameter setting and improves the material crushing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0030] Figure 1 is a flow chart of a crusher control method provided by Embodiment 1 of the present invention;

[0031] Figure 2 It is a structural schematic diagram of a crusher provided in Embodiment 1 of the present invention;

[0032] Figure 3 yes Figure 2 Sectional view at AA

[0033] Figure 4 is a flow chart of a crusher control method provided by Embodiment 2 of the present invention;

[0034] Figure 5 This is a flow chart of a crusher control method provided in Embodiment 3 of the present invention.

[0035] In the figure:

[0036] 1. Crusher body; 11. Install inner cavity; 111. Crushing roller; 112. Crushing plate; 1121. Upper plate; 1122. Lower plate; 113. Adjustable top plate; 114. Adjustable side plate; 115. Feed channel wall; 12. Feed inlet; 13. Discharge outlet; 14. Flow sensor; 15. Particle size sensor; 16. Hardness sensor;

[0037] 2. Drive assembly; 21. Fluid coupling; 22. Speed ​​sensor;

[0038] 3. Control system; 31. Power distribution cabinet; 32. Current sensor; 33. Voltage sensor; 34. Control mechanism; 341. Driving part. DETAILED DESCRIPTION

[0039] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, not all.

[0040] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0041] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] In the present invention, unless otherwise clearly stipulated and limited, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature being "above", "above" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature. In the description of this embodiment, unless otherwise specified, "multiple" specifically refers to two or more.

[0043] In the description of this embodiment, the terms "upper", "lower", "right", etc., directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0044] It should be noted that when an element is referred to as being “fixed to” or “disposed on” another element, it may be directly on the other element or there may be a central element.

[0045] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0046] Embodiment 1

[0047] This embodiment provides a crusher control method and a crusher, which are used to solve the technical problems of low crushing efficiency and crushing quality of crushers in the prior art.

[0048] like Figure 2-Figure 3As shown, the crusher includes a crusher body 1, a drive component 2 and a control system 3. The drive component 2 includes a motor (not shown) and a hydraulic coupler 21. The control system 3 includes a distribution cabinet 31. The circuit system in the distribution cabinet 31 controls the rotation of the motor and the action of the hydraulic coupler 21. The crusher body 1 has an installation cavity 11. A crushing roller 111 is rotatably installed in the installation cavity 11. The motor shaft is connected to the shaft of the crushing roller 111 through the hydraulic coupler 21 to drive the crushing roller 111 to operate.

[0049] The crusher body 1 has a feed port 12 at the upper part and a discharge port 13 at the lower part. The material enters the installation cavity 11 from the feed port 12 and is discharged from the discharge port 13 after being crushed by the crushing roller 111. The installation cavity 11 is also equipped with a crushing plate 112, which moves relative to the cavity wall of the installation cavity 11, thereby selectively approaching or moving away from the crushing roller 111. The crushing plate 112 includes an upper plate portion 1121 and a lower plate portion 1122, which are sequentially arranged along the circumference of the crushing roller 111. The upper plate portion 1121 and the lower plate portion 1122 simultaneously move relative to the cavity wall of the installation cavity 11, thereby selectively approaching or moving away from the crushing roller 111. In other embodiments, one of the upper plate portion 1121 or the lower plate portion 1122 can also be moved relative to the cavity wall of the installation cavity 11, which can be selected according to actual needs, and no excessive restrictions are made here.

[0050] It can be understood that when the crushing roller 111 rotates, the material passes through the crushing channel gap between the crushing roller 111 and the crushing plate 112, wherein the crushing channel gap refers to the narrowest gap between the crushing roller 111 and the crushing plate 112, and the crushing roller 111 and the crushing plate 112 squeeze and collide the material to crush the material, and as the crushing plate 112 approaches the crushing roller 111, the crushing channel gap becomes narrower and the particle size of the material will become smaller, and as the crushing plate 112 moves away from the crushing roller 111, the crushing channel gap becomes wider and the particle size of the material will become larger.

[0051] The installation cavity 11 is formed by the top wall, the base and the side wall vertically connected to the two in the circumferential direction. The feed port 12 is obliquely opened between the top wall of the crusher and a side wall adjacent to the top wall. The crusher body 1 is provided with a feed channel obliquely from top to bottom along the feed port 12 toward the crushing roller 111. An adjustment side plate 114 is installed in the installation cavity 11. The adjustment side plate 114 is installed on a feed channel wall 115 on one side of the feed channel, and one end close to the feed port 12 is rotatably connected to the feed channel wall 115, and the other end can be flipped at a certain angle relative to the feed channel wall 115. By changing the adjustment angle α between the adjustment side plate 114 and the feed channel wall 115, the material flow rate entering the installation cavity 11 can be changed. Specifically, an increase in the adjustment angle α between the adjustment side plate 114 and the feed channel wall 115 reduces the material flow path of the feed port 12, thereby reducing the material flow rate. Conversely, a decrease in the adjustment angle α between the adjustment side plate 114 and the feed channel wall 115 increases the material flow path of the feed port 12, thereby increasing the material flow rate.

[0052] An adjustable top plate 113 is also installed in the installation inner cavity 11. One end of the adjustable top plate 113 is hinged to the cavity wall of the installation inner cavity 11, and the other end extends into the feed channel. The adjustable top plate 113 can be flipped at a certain angle relative to the horizontal plane. By repeatedly changing the angle β between the adjustable top plate 113 and the horizontal plane, when the material is blocked at the feed port 12, the adjustable top plate 113 can stir the material, thereby making it easier for the material to get rid of the blocking state.

[0053] The crusher also includes a control mechanism 34, which includes a plurality of driving members 341. The upper plate portion 1121, the lower plate portion 1122, the free side of the adjustable top plate 113 and the free side of the adjustable side plate 114 are each connected to a free side of a driving member 341 to make the crushing plate 112 approach or move away from the crushing roller 111, or to change the angle β between the adjustable top plate 113 and the horizontal plane and the adjustment angle α between the adjustable side plate 114 and the feed channel wall 115.

[0054] To ensure the crushing effect, the motor speed can be adjusted, and then the speed ω of the crushing roller 111 can be adjusted. In order to make the material characteristics of the discharge port 13 meet the target material characteristics, when the hardness of the material at the feed port 12 is too high, the speed ω of the crushing roller 111 needs to be increased to enhance the crushing strength, thereby avoiding that the material is not completely crushed. When the hardness of the material at the feed port 12 is too low, the speed ω of the crushing roller 111 needs to be reduced to weaken the crushing strength, thereby avoiding that the particle size of the material at the discharge port 13 is too small, and can also achieve the effect of energy saving.

[0055] The crusher of this embodiment also includes a current sensor 32, a voltage sensor 33, a hardness sensor 16, a particle size sensor 15, a flow sensor 14 and a speed sensor 22, wherein the current sensor 32 and the voltage sensor 33 are installed in the distribution cabinet 31 for detecting the power consumption of the crusher; the feed port 12 is provided with a hardness sensor 16, a particle size sensor 15 and a flow sensor 14, and the discharge port 13 is provided with a particle size sensor 15 for detecting the particle size of the material at the discharge port 13; the speed sensor 22 is installed on the rotating shaft between the hydraulic coupler 21 and the crushing roller 111, and is used to detect the rotation speed ω of the crushing roller 111.

[0056] The data collected by the current sensor 32, the voltage sensor 33, the hardness sensor 16, the particle size sensor 15, the flow sensor 14 and the rotation speed sensor 22 are uploaded to the control system 3, and the control system 3 sends the crushing parameters to the control mechanism 34 and the drive component 2 after analysis.

[0057] like Figure 1 As shown, a crusher control method proposed in this embodiment includes:

[0058] S101, establishing an inlet material characteristics-crushing parameter relationship table;

[0059] The inlet material characteristics include the inlet material hardness, inlet material flow rate, and inlet material particle size; the crushing parameters include the rotation speed ω of the crushing roller 111, the adjustment angle α between the adjusting side plate 114 and the feed channel wall 115, and the distance d from the crushing plate 112 to the crushing roller 111.

[0060] S102, obtaining the inlet material characteristics at the feed inlet 12 of the crusher;

[0061] A hardness sensor 16, a particle size sensor 15 and a flow sensor 14 are installed at the entrance of the crusher to detect the material characteristics at the entrance and send the data to the control system 3, so that the control system 3 can make the next decision.

[0062] S103, determining target crushing parameters based on inlet material characteristics and an inlet material characteristics-crushing parameter relationship table;

[0063] After receiving the inlet material characteristics sent by the sensor, the control system 3 searches for the target crushing parameters according to the inlet material characteristics-crushing parameter relationship table.

[0064] S104, controlling the crusher to operate according to target crushing parameters, and detecting outlet material characteristics in real time during operation;

[0065] The control system 3 sends commands to the control mechanism 34 and the drive assembly 2 to make the crusher operate according to the target crushing parameters. At the same time, the particle size sensor 15 at the outlet sends the outlet material particle size to the control system 3 in real time.

[0066] S105. When the export material characteristics do not meet the target material characteristics, based on the difference between the export material characteristics and the target material characteristics, the crushing parameters in the import material characteristics-crushing parameter relationship table are adjusted and updated, and the target crushing parameters are re-determined based on the updated import material characteristics-crushing parameter relationship table.

[0067] The input material characteristics-crushing parameter relationship table is generally prepared by the crusher operator based on experience and stored in the control system 3. Under normal circumstances, materials that meet the standards can be obtained by running according to the data in the input material characteristics-crushing parameter relationship table. However, due to the lack of uniformity of the feed material and the possibility that other types of materials may be mixed in the same batch of materials, in order to ensure that the crushed material meets the standards, the input material characteristics-crushing parameter relationship table needs to be continuously updated.

[0068] When the export material characteristics do not meet the target material characteristics, it proves that the crushing parameters in the current input material characteristics-crushing parameter relationship table are insufficient to make the export material characteristics meet the target material characteristics. At this time, it is necessary to adjust the crushing parameters in the input material characteristics-crushing parameter relationship table, and obtain new target crushing parameters based on the updated input material characteristics-crushing parameter relationship table. The crusher operates according to the new target crushing parameters.

[0069] That is to say, the control system 3 will continuously update the inlet material characteristic-crushing parameter relationship table according to whether the outlet material characteristic meets the target material characteristic, so that the crushing parameters in the table change with the difference between the outlet material characteristic and the target material characteristic, and finally the crusher will query the inlet material characteristic-crushing parameter relationship table according to the inlet material characteristic to obtain the updated target crushing parameters. After the material at the inlet of the crusher body 1 is crushed according to the updated target crushing parameters, the material characteristics arriving at the outlet of the crusher body 1 can meet the target material characteristics. If it still does not meet the target material characteristics, since the outlet material characteristics are in real-time detection state, the control system 3 will continue to adjust the crushing parameters in the inlet material characteristic-crushing parameters until the outlet material characteristics meet the target material characteristics.

[0070] In order to make the crushing parameters accurately intervene in the material characteristics, optionally, in step S105, based on the difference between the outlet material characteristics and the target material characteristics, the crushing parameters in the inlet material characteristics-crushing parameter relationship table are adjusted and updated, specifically including: when the outlet material particle size is lower than the target material particle size range, the parameter value of the crushing channel gap is increased, and when the outlet material particle size is higher than the target material particle size range, the parameter value of the crushing channel gap is reduced. This setting makes the distance between the crushing plate 112 and the crushing roller 111 change according to the outlet material particle size, so that the outlet material particle size gradually reaches the target material particle size range, improves the accuracy of controlling the material particle size characteristics, and avoids large fluctuations in the outlet material particle size.

[0071] For example, when the outlet material particle size is outside the target material particle size range, the parameter value of the crushing channel gap is controlled to increase or decrease with the rated gap amplitude. The value of the spacing d from the crushing plate 112 to the crushing roller 111 is reduced or increased by 2cm-8cm each time, preferably 4cm-6cm. That is, the rated gap amplitude is 2cm~8cm, preferably 4cm~6cm. This setting not only ensures sufficient adjustment amplitude, but also avoids large fluctuations in particle size that affect material uniformity.

[0072] Optionally, in step S105, based on the difference between the characteristics of the outlet material and the characteristics of the target material, adjusting and updating the crushing parameters in the inlet material characteristics-crushing parameter relationship table specifically includes: when the particle size of the outlet material is lower than the particle size range of the target material, reducing the parameter value of the rotation speed of the crushing roller 111, and when the particle size of the outlet material is higher than the particle size range of the target material, increasing the parameter value of the rotation speed of the crushing roller 111. The rotation speed ω of the crushing roller 111 can also have a certain influence on the particle size of the outlet material. The higher the rotation speed ω of the crushing roller 111, the greater the crushing force on the material, the greater the impact on the material in the crusher, and thus the smaller the particle size of the outlet material. On the contrary, the lower the rotation speed ω of the crushing roller 111, the smaller the crushing force on the material, the smaller the impact on the material in the crusher, and thus the smaller the particle size of the outlet material. This setting enables the rotation speed ω of the crushing roller 111 to gradually change according to the particle size of the outlet material, thereby gradually affecting the particle size of the outlet material to make it reach the target material particle size, thereby avoiding the large change in the particle size of the material affecting the uniformity of the material.

[0073] For example, when the outlet material size is outside the target material size range, the parameter value of the speed of the crushing roller 111 is controlled to increase or decrease with the rated speed amplitude. The speed ω of the crushing roller 111 is reduced or increased by 10r / s-50r / s each time, preferably 20r / s-40r / s. That is, the rated speed amplitude is 10r / s to 50r / s. This setting not only ensures sufficient adjustment amplitude, but also avoids large fluctuations in the speed that affect the service life of the crusher body 1.

[0074] It is worth mentioning that the crusher control method also includes: when the flow sensor 14 at the feed port 12 detects that the flow parameter value is less than the first preset flow value, the top plate 113 is controlled to swing repeatedly at a preset frequency. Understandably, when the flow sensor 14 at the feed port 12 detects that the flow parameter value is less than the preset flow value, it means that the material at the feed port 12 of the crusher is blocked. At this time, it is necessary to adjust the angle β between the top plate 113 and the horizontal plane to repeatedly change to stir the material and help it get rid of the blocked state. Optionally, the first preset flow value is 10kg / s-5kg / s, preferably 7kg / s. This flow setting avoids the system from misjudging when the blockage is not complete and the material partially falls, thereby improving the control accuracy.

[0075] Embodiment 2

[0076] This embodiment provides a crusher control method and a crusher, and this embodiment is a further improvement of the first embodiment. This embodiment no longer sets the same structure and method as the first embodiment.

[0077] like Figure 4 As shown, a crusher control method proposed in this embodiment includes:

[0078] S201, establishing an inlet material characteristics-crushing parameter relationship table;

[0079] S202, obtaining the inlet material characteristics at the feed inlet 12 of the crusher;

[0080] S203, determining target crushing parameters based on inlet material characteristics and an inlet material characteristics-crushing parameter relationship table;

[0081] S204, controlling the crusher to operate according to target crushing parameters, and detecting outlet material characteristics in real time during operation;

[0082] S205, determine whether the preset end condition is met, if not, execute step S206, if yes, execute step S208;

[0083] The preset end condition includes that the data detected by the voltage sensor 33 and the current sensor 32 are zero; and / or the inlet material flow rate at the feed port 12 is lower than the second preset flow rate.

[0084] When the data detected by the voltage sensor 33 and the current sensor 32 are zero, it indicates that the crusher is faulty or the power supply is faulty or the crusher is shut down, and the operation needs to be terminated; and / or, when the material flow rate at the feed port 12 is lower than the second preset flow rate, it indicates that no material is entering or the material is blocked at the feed port 12, and the operation needs to be terminated. The second preset flow rate can be selected as 0.5kg / s-1kg / s. This flow setting avoids the system from making a misjudgment when the blockage is not complete and the material partially falls, thereby improving the accuracy of the system judgment.

[0085] S206, determine whether the export material characteristics meet the target material characteristics, if yes, return to step S204, if not, execute step S207;

[0086] S207, adjusting and updating the crushing parameters in the inlet material characteristics-crushing parameter relationship table, and returning to step S203;

[0087] It is worth mentioning that when the particle size of the outlet material does not meet the target material particle size range, if the preset gap adjustment condition is met, the parameter value of the crushing channel gap is adjusted, otherwise the parameter value of the speed of the crushing roller 111 is adjusted. Since the effect of adjusting the spacing d from the crushing plate 112 to the crushing roller 111 on the particle size is more obvious, and the speed ω of the crushing roller 111 has the second largest effect on the material particle size, when the particle size of the outlet material does not meet the target material particle size range, the parameter value of the crushing channel gap is adjusted first. However, the preset gap is limited by the preset gap adjustment condition. If this preset gap adjustment condition is not met, it means that the spacing d from the crushing plate 112 to the crushing roller 111 has reached the limit adjustment position, and the parameter value of the crushing channel gap can no longer be adjusted or the parameter value of the crushing channel gap is adjusted. The intervention effect on the particle size of the outlet material is not good. At this time, it is necessary to adjust the speed ω of the crushing roller 111.

[0088] Exemplarily, the preset gap adjustment conditions include: the current crushing channel gap is within the preset gap range, and the preset gap range is 30cm-50cm. This gap setting not only avoids the crushing gap being adjusted too large to adjust the outlet material particle size, but also avoids the crushing gap being adjusted too small to cause the material to get stuck, shortening the life of the crusher.

[0089] S208, end the operation.

[0090] Embodiment 3

[0091] This embodiment provides a crusher control method and a crusher, and this embodiment is a further improvement of the first and second embodiments. This embodiment no longer sets the same structure and method as the first and second embodiments.

[0092] like Figure 5 As shown, a crusher control method proposed in this embodiment includes:

[0093] S301, establishing an inlet material characteristics-crushing parameter relationship table;

[0094] S302, obtaining the inlet material characteristics at the feed inlet 12 of the crusher;

[0095] S303, determining target crushing parameters based on inlet material characteristics and an inlet material characteristics-crushing parameter relationship table;

[0096] S304, controlling the crusher to operate according to target crushing parameters, and detecting outlet material characteristics in real time during operation;

[0097] S305, determine whether the preset end condition is met, if not, execute S306, if yes, execute S311;

[0098] S306, determine whether the export material characteristics meet the target material characteristics, if yes, execute step S308, if not, execute S307;

[0099] S307, adjust and update the crushing parameters in the inlet material characteristics-crushing parameter relationship table and return to step S303;

[0100] S308, obtaining the current actual power consumption of the crusher;

[0101] S309, determining whether the current actual power consumption exceeds the preset power consumption, if not, returning to step S304; if yes, executing step S310;

[0102] S310, adjust and update the crushing parameters in the inlet material characteristics-crushing parameter relationship table and return to step S303;

[0103] S311, end the operation;

[0104] The preset power consumption is the limit value of the normal power consumption of the crusher under full load. The crusher power consumption is qualified if it is lower than this preset power consumption. If the actual power consumption exceeds this preset power consumption, it means that the target crushing parameters need to be adjusted to reduce the actual power consumption.

[0105] It is understandable that if the actual power consumption exceeds the preset power consumption, adjusting the crushing parameters to reduce the crushing intensity can effectively reduce the power consumption until the power consumption returns to the normal range. When the power consumption meets the standard, it is necessary to return to step S303 to determine whether the material characteristics at the discharge port 13 are qualified when the crusher is running according to the adjusted crushing parameters. If not, the crushing parameters need to be readjusted. Since the difference between the outlet material characteristics and the target material characteristics is a range value, the crushing parameters will be adjusted cyclically to simultaneously meet the requirements of both the outlet material characteristics and the power consumption.

[0106] Optionally, when the actual power consumption exceeds the preset power consumption, the parameter value of the speed of the crushing roller 111 is reduced. The higher the speed ω of the crushing roller 111, the more thoroughly the material is crushed, and the higher the corresponding power consumption of the crusher. On the contrary, the lower the speed ω of the crushing roller 111, the lower the crushing strength of the material, and the lower the corresponding power consumption of the crusher. This setting allows the speed of the crushing roller 111 to be gradually reduced, that is, the speed of the motor in the drive assembly 2 is gradually reduced, which not only gradually reduces the power consumption but also avoids excessive changes in the hardness of the material due to excessive speed reduction.

[0107] Exemplarily, the speed of the crushing roller 111 is reduced by 5r / s-25r / s each time, preferably 10r / s-20r / s. This setting not only ensures sufficient adjustment range, but also avoids large fluctuations in the speed that affect the service life of the crusher body 1.

[0108] Optionally, when the actual power consumption exceeds the preset power consumption, the parameter value of the adjustment angle α between the adjustment side plate 114 and the feed channel wall 115 is increased. The larger the angle α between the adjustment side plate 114 and the feed channel wall 115, the narrower the channel through which the material passes from the feed port 12, the smaller the material flow rate, the smaller the crushing intensity borne by the crushing roller 111, and the final power consumption. This setting allows the flow rate to be gradually reduced and the power consumption to be gradually reduced, while avoiding excessive reduction in the material flow rate leading to material accumulation at the inlet of the crusher body 1.

[0109] For example, the angle α between the side plate 114 and the feed channel wall 115 is adjusted to increase by 2°-8° each time, preferably 4°-6°. This arrangement ensures a sufficient adjustment range and avoids large fluctuations in the flow rate.

[0110] Optionally, when the actual power consumption exceeds the preset power consumption, the parameter value of the crushing channel gap between the crushing plate 112 and the crushing roller 111 is increased. Understandably, the smaller the distance between the crushing plate 112 and the crushing roller 111, the smaller the channel through which the material passes in the crusher body 1, and the greater the friction and pressure on the corresponding crushing roller 111, so the power consumption is higher. On the contrary, the larger the distance between the crushing plate 112 and the crushing roller 111, the larger the channel through which the material passes in the crusher body 1, and the smaller the friction and pressure on the corresponding crushing roller 111, so the power consumption is lower. This setting allows the crushing intensity of the crusher to be gradually reduced, thereby reducing power consumption, while avoiding excessive reduction in particle size resulting in material characteristics not meeting the standard.

[0111] For example, the distance between the crushing plate 112 and the crushing roller 111 is lowered each time is 1 cm-4 cm, preferably 2 cm-3 cm. This setting not only ensures sufficient adjustment range, but also avoids large fluctuations in particle size that affect material uniformity.

[0112] It is worth mentioning that when the current actual power consumption exceeds the preset power consumption, if the preset angle adjustment conditions are met, the parameter value of the adjustment angle is increased; otherwise, the parameter value of the rotation speed of the crushing roller 111 is reduced or the parameter value of the crushing channel gap is increased.

[0113] It can be understood that when the outlet material characteristics meet the target material characteristics, the rotation speed ω of the crushing roller 111 and the distance d from the crushing plate 112 to the crushing roller 111 have been adjusted to values ​​that meet the target material characteristics. If the rotation speed ω of the crushing roller 111 or the distance d from the crushing plate 112 to the crushing roller 111 is adjusted at this time, the number of cycles will be extended. The adjustment angle α between the side plate 114 and the feed channel wall 115 has the least effect on the outlet material characteristics. Therefore, if the preset angle adjustment conditions are met, the angle α between the side plate 114 and the feed channel wall 115 is adjusted first. If not, the crushing channel gap or the rotation speed ω of the crushing roller 111 is adjusted.

[0114] The adjustment angle α is subject to preset angle adjustment conditions. Optionally, the preset angle adjustment conditions include that the current adjustment angle α is within a preset angle range. Exceeding this range indicates that the adjustment angle α between the adjustment side plate 114 and the feed channel wall 115 has reached a limit angle and the adjustment angle α can no longer be adjusted or the power consumption cannot be effectively adjusted when the adjustment angle α is adjusted. At this time, it is necessary to adjust the crushing channel gap or the rotation speed ω of the crushing roller 111.

[0115] Optionally, the preset angle range is 0°-50°. This angle setting avoids excessive fluctuations in material flow caused by too large an adjustment range of the adjustment angle α, thereby improving crushing stability.

[0116] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. A crusher control method, characterized in that: The crusher control method comprises: Establish the relationship table between inlet material characteristics and crushing parameters; Obtaining inlet material characteristics at the feed inlet of the crusher; Determining target crushing parameters based on the inlet material characteristics and the inlet material characteristics-crushing parameter relationship table; Controlling the crusher to operate according to the target crushing parameters, and detecting the outlet material characteristics in real time during the operation; When the outlet material characteristics do not meet the target material characteristics, the crushing parameters in the inlet material characteristics-crushing parameter relationship table are adjusted and updated based on the difference between the outlet material characteristics and the target material characteristics, and the target crushing parameters are re-determined based on the updated inlet material characteristics-crushing parameter relationship table.

2. The crusher control method according to claim 1, characterized in that: The outlet material characteristic includes the outlet material particle size, the target material characteristic includes the target material particle size range, and the crushing parameter includes the crushing roller rotation speed. Based on the difference between the outlet material characteristic and the target material characteristic, adjusting and updating the crushing parameters in the inlet material characteristic-crushing parameter relationship table specifically includes: when the outlet material particle size is lower than the target material particle size range, reducing the parameter value of the crushing roller rotation speed; when the outlet material particle size is higher than the target material particle size range, increasing the parameter value of the crushing roller rotation speed; And / or, the outlet material characteristics include the outlet material particle size, the target material characteristics include the target material particle size range, the crushing parameters include the crushing channel gap between the crushing plate and the crushing roller, and based on the difference between the outlet material characteristics and the target material characteristics, adjusting and updating the crushing parameters in the inlet material characteristics-crushing parameter relationship table specifically include: when the outlet material particle size is lower than the target material particle size range, increasing the parameter value of the crushing channel gap; when the outlet material particle size is higher than the target material particle size range, reducing the parameter value of the crushing channel gap.

3. The crusher control method according to claim 2, characterized in that: When the outlet material particle size does not meet the target material particle size range, if the preset gap adjustment condition is met, the parameter value of the crushing channel gap is adjusted, otherwise the parameter value of the crushing roller rotation speed is adjusted.

4. The crusher control method according to claim 3, characterized in that: The preset gap adjustment condition includes: the current crushing channel gap is within a preset gap range, and the preset gap range is 30cm-50cm.

5. The crusher control method according to claim 2, characterized in that: When the outlet material particle size is outside the target material particle size range, controlling the parameter value of the crushing channel gap to increase or decrease with the rated gap amplitude; And / or, when the outlet material particle size is outside the target material particle size range, the parameter value of the crushing roller rotation speed is controlled to increase or decrease at the rated rotation speed amplitude.

6. The crusher control method according to any one of claims 1 to 5, characterized in that: The crusher control method also includes: after the outlet material characteristics meet the target material characteristics, obtaining the current actual power consumption of the crusher, if the current actual power consumption exceeds the preset power consumption, adjusting and updating the crushing parameters in the inlet material characteristics-crushing parameter relationship table, and re-determining the target crushing parameters based on the updated inlet material characteristics-crushing parameter relationship table.

7. The crusher control method according to claim 6, characterized in that: The crushing parameters include the crushing roller rotation speed, and when the current actual power consumption exceeds the preset power consumption, the parameter value of the crushing roller rotation speed is reduced; And / or, the crushing parameter includes a crushing channel gap between a crushing plate and a crushing roller, and when the current actual power consumption exceeds the preset power consumption, the parameter value of the crushing channel gap is increased; And / or, the crushing parameter includes adjusting an angle between the side plate and the wall of the feed channel, and when the current actual power consumption exceeds the preset power consumption, the parameter value of the adjustment angle is increased.

8. The crusher control method according to claim 7, characterized in that: When the current actual power consumption exceeds the preset power consumption, if the preset angle adjustment condition is met, the parameter value of the adjustment angle is increased; otherwise, the parameter value of the crushing roller speed is reduced or the parameter value of the crushing channel gap is increased.

9. The crusher control method according to any one of claims 1 to 5, characterized in that: The crushing parameters include adjusting the angle between the side plate and the side wall of the feed channel, and the control method also includes: real-time detection of the inlet flow rate during the operation of the crusher, and adjusting the parameter value of the adjustment angle according to the inlet flow rate.

10. A crusher, characterized in that: The crusher is configured to be controlled for operation by the crusher control method according to any one of claims 1-9.

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