Automatic sintering material distributing mechanism for sintering machine and calculation method

Abstract

The application discloses a kind of sintering material automatic distribution mechanism and computing method for sintering machine, specifically relates to sintering distribution mechanism technical field, and the application can realize single auxiliary gate action or overall action by using multiple independent auxiliary gate, electric actuator promotes main gate and auxiliary gate linkage device, main gate does not act when normal distribution, when there is card blockage, material layer thickness reduces, with the opening of auxiliary gate, main gate is opened in proportion, to accelerate the purpose of unloading, vice versa, and the device has simple structure, action sensitive, fast response speed and stable and reliable operation, and the opening of distribution gate can be adjusted randomly according to the requirements of production process to control the thickness of material layer, and the deviation in adjustment process can also be compensated, improve sintering quality, so that the waste heat of sintering material on sintering machine is difficult to effectively utilize, and it can work stably for a long time under the condition of sintering distribution is relatively poor.

Description

TECHNICAL FIELD

[0001] The present application relates to sintering cloth mechanism technical field, more specifically, the present application relates to a kind of sintering machine with sintering material automatic cloth mechanism and calculation method. BACKGROUND

[0002] At present, in the prior art, sintering machine cloth is all adopted in the discharge port of mixed ore bin has cloth gate, the lower portion of mixed ore bin has cloth roller, sinter is discharged by the cloth gate controlled discharge port and is clothed on cloth roller, and the cloth roller is clothed again to sintering machine, and the adjustment of cloth gate is adjusted by artificial and simple machine, and the opening of cloth gate cannot be controlled randomly according to production process and deviation in compensation adjustment, therefore, the material clothed on sintering machine is often inconsistent in thickness, and uniform sintering cannot be realized, so that good sinter quality is obtained, and the waste heat of sintering material on sintering machine is difficult to utilize effectively, and a new sintering machine with sintering material automatic cloth mechanism and calculation method is studied to solve the above problems, which has important significance. SUMMARY

[0003] In order to overcome the above-mentioned defects of the prior art, the present application provides a kind of sintering machine with sintering material automatic cloth mechanism and calculation method, and the technical problems to be solved by the present application are that the sintering machine cloth mechanism in the prior art is generally adjusted by artificial and simple mechanical adjustment, and the opening of cloth gate cannot be controlled randomly according to production process and deviation in compensation adjustment.

[0004] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme: a kind of sintering machine with sintering material automatic cloth mechanism, including round roller cloth machine, the upper portion of the round roller cloth machine is provided with a plurality of auxiliary gates placed side by side, a plurality of auxiliary gates are fixedly installed with electric actuator, one end of the upper portion of a plurality of electric actuators is fixedly installed on the front surface of mixed ore bin, the discharge port position below the front surface of mixed ore bin is hinged with main gate through a plurality of second hinges, and a plurality of auxiliary gates are hinged below main gate through two first hinges.

[0005] The cloth mechanism measurement and control system includes a centralized control room, the centralized control room is connected with the switch through optical fiber or twisted pair, the switch is connected between the sintering PLC, the switch is connected between the touch screen, the switch is connected with power supply, PLC host, input module and output module, the output end of the output module is connected with the input end of signal isolation, the output end of signal isolation is connected with the input end of actuator control output and round roller cloth machine control output, the input end of the input module is connected with the output end of signal isolation, and the output end of layer thickness gauge measurement data and electric actuator stroke feedback is connected with the input end of signal isolation.

[0006] As a further scheme of the present application: the sintering PLC comprises a stock bin level, a circular roller distributor speed and a sintering machine speed acquisition.

[0007] As a further scheme of the present application: the electric actuator is actively controlled by a hydraulic cylinder, and the hydraulic cylinder is connected with the mixed material stock bin and the auxiliary gate through two pin shaft seats respectively.

[0008] As a further scheme of the present application: the hydraulic cylinder adopts an electro-hydraulic proportional control hydraulic cylinder output shaft displacement, and a displacement sensor is arranged on the hydraulic cylinder.

[0009] As a further scheme of the present application: the electro-hydraulic proportional control of the hydraulic cylinder output shaft displacement is that a rodless cavity and a rod cavity of the hydraulic cylinder are connected with an electro-hydraulic proportional reversing valve through a rodless cavity one-way valve and a rod cavity one-way valve in series respectively, the electro-hydraulic proportional reversing valve is connected with an oil inlet pipe and an oil discharge pipe, the electro-hydraulic proportional reversing valve is further connected with an output end of a proportional amplifier through a cable, and an input end of the proportional amplifier is connected with a displacement sensor and a material distribution gate control signal.

[0010] As a further scheme of the present application: the displacement sensor on the hydraulic cylinder is an integrated displacement sensor in the hydraulic cylinder.

[0011] As a further scheme of the present application: the material distribution mechanism measurement and control system adopts corresponding lower programming software to generate a special control application program.

[0012] A calculation method of a sintering material automatic distribution mechanism for a sintering machine, comprising the following steps:

[0013] The material distribution height of the cross section of the sintering machine trolley is detected in real time through multiple level meters, the detection data is collected into the sintering PLC in real time, the sintering PLC calculates the real-time material layer thickness of the material distribution on the sintering trolley through data processing, compares the real-time material layer thickness with a target material layer thickness set value, obtains a position correction value of the main gate and the auxiliary gate through a model control algorithm, and sends a correction instruction signal to the electric actuator, the electric actuator drives the auxiliary gate to drive the main gate to act to adjust the material gap opening degree according to the correction instruction of the PLC host, the electric actuator feeds back a push rod stroke signal to the PLC host through a displacement sensor, the PLC host confirms the stroke position and keeps through comparison and calculation, so that the position closed-loop automatic control of the material opening degree is realized.

[0014] The present application has the following beneficial effects:

[0015] 1、The present application by using a plurality of independent auxiliary gate, can realize single auxiliary gate action, or the whole action, electric actuator push main gate and auxiliary gate linkage device, normal cloth main gate does not act, when the card block material, the thickness of the material layer is reduced, with the opening of auxiliary gate, main gate followed by proportional opening, to speed up the purpose of unloading, vice versa, and the device has simple structure, action sensitive, fast response and stable and reliable operation, and can be according to the requirements of production process, independent random adjustment cloth gate opening to control the thickness of the material layer, at the same time can also compensate the deviation in the adjustment process, improve the sintering quality, so that the sintering machine on the sintering material waste heat is difficult to effectively utilize, in the sintering cloth is more poor working conditions can be long-term stable work. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the three-dimensional structure of the present application schematic diagram;

[0017] Figure 2 is the three-dimensional structure of the present application main gate schematic diagram;

[0018] Figure 3 is the three-dimensional structure of the present application auxiliary gate schematic diagram;

[0019] Figure 4 is the present application cloth mechanism measurement and control system schematic diagram;

[0020] In the figure: 1 round roller distributor, 2 electric actuator, 3 mixed ore slot, 4 auxiliary gate, 5 first hinge, 6 second hinge, 7 main gate. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0022] As Figures 1-4The present application provides a sintering material automatic distribution mechanism for a sintering machine, which comprises a circular roller distributor 1. The circular roller distributor 1 is arranged to realize the distribution of the sintering material to the sintering machine. A plurality of auxiliary gates 4 are arranged above the circular roller distributor 1. The auxiliary gates 4 can be opened singly or in multiple. The auxiliary gates 4 are fixedly installed with electric actuators 2. The electric actuators 2 can realize the opening and closed loop control of the auxiliary gates 4 and the main gate 7. The rotation angle of the electric actuators 2 is 0-90°, and the adjustment arc length is 0-250mm. The electric actuators 2 are fixedly installed at one end of the front surface of the mixed material tank 3. The mixed material tank 3 can meet the storage requirements of the material. The main gate 7 is hingedly connected to the discharge port of the front surface of the mixed material tank 3 through a plurality of second hinges 6. The first hinges 5 and the second hinges 6 can realize the angular movement of the main gate 7 and the auxiliary gates 4. The auxiliary gates 4 are hingedly connected to the lower surface of the main gate 7 through two first hinges 5.

[0023] The distribution mechanism measurement and control system comprises a centralized control room, which is connected with a switch through optical fiber or twisted pair, and the switch is connected with a sintering PLC, a touch screen, a power supply, a PLC host, an input module and an output module. The output end of the output module is connected with the input end of signal isolation, the output end of signal isolation is connected with the input end of actuator control output and circular roller distributor control output, the input end of the input module is connected with the output end of signal isolation, and the output end of signal isolation is connected with the output end of layer thickness gauge measurement data and electric actuator stroke feedback.

[0024] As shown in the drawings, Figure 4As shown, the sintering PLC includes ore bin level, circular roller distributor speed and sintering machine speed acquisition, the electric actuator 2 is actively controlled by the hydraulic cylinder, the hydraulic cylinder is connected with the mixed ore bin 3 and the auxiliary gate 4 through two pin shaft seats, the hydraulic cylinder adopts electro-hydraulic proportional control hydraulic cylinder shaft displacement, the hydraulic cylinder has a displacement sensor, the electro-hydraulic proportional control of the hydraulic cylinder shaft displacement is that the rodless cavity and the rod cavity of the hydraulic cylinder are connected with the electro-hydraulic proportional directional valve after being connected with the rodless cavity one-way valve and the rod cavity one-way valve through the oil pipe in series, the electro-hydraulic proportional directional valve is connected with the oil inlet pipe and the oil discharge pipe, the electro-hydraulic proportional directional valve also has the output end connected with the proportional amplifier through the cable, and the input end of the proportional amplifier is connected with the displacement sensor and the material gate control signal, the electro-hydraulic proportional control of the hydraulic cylinder shaft displacement is that the rodless cavity and the rod cavity of the hydraulic cylinder are connected with the electro-hydraulic proportional directional valve after being connected with the rodless cavity one-way valve and the rod cavity one-way valve through the oil pipe in series, the electro-hydraulic proportional directional valve is connected with the oil inlet pipe and the oil discharge pipe, the electro-hydraulic proportional directional valve also has the output end connected with the proportional amplifier through the cable, and the input end of the proportional amplifier is connected with the displacement sensor and the material gate control signal, the material distribution mechanism measurement and control system generates a special control application program by using corresponding lower programming software STEP7 or UNITY PRO and upper monitoring software WINCC or INTOUCH, remote monitoring operation of sintering distribution can be completed through the lower programming software and the upper monitoring software, and automatic control of the sintering material layer thickness according to the set target thickness can be realized.

[0025] A calculation method of an automatic material distribution mechanism for a sintering machine, comprising the following steps:

[0026] The material distribution height of the cross section of the sintering machine trolley is detected in real time by a plurality of level meters, the detection data is collected into the sintering PLC in real time, the real-time material layer thickness of the material distribution on the sintering trolley is calculated by the sintering PLC through data processing, the real-time material layer thickness is compared with the target material layer thickness set value, the position correction value of the main gate 7 and the auxiliary gate 4 is obtained through the model control algorithm, and the correction instruction signal is sent to the electric actuator 2, the electric actuator 2 drives the auxiliary gate 4 to drive the main gate 7 to act to adjust the material gap opening degree according to the correction instruction of the PLC host, the electric actuator 2 feeds back the push rod stroke signal to the PLC host through the displacement sensor, the PLC host confirms the stroke position through comparison and calculation and keeps it, so as to realize the position closed-loop automatic control of the material opening degree.

[0027] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between the two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0028] Secondly: the drawings of the disclosed embodiments only involve the structures involved in the disclosed embodiments, other structures can refer to the general design, and in the case of no conflict, the same embodiments and different embodiments of the present application can be combined with each other;

[0029] Finally: the above only describes the preferred embodiments of the present application and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A sintering material automatic distribution mechanism for a sintering machine, comprising a circular roller distributor (1), characterized in that: The upper part of the circular roller distributor (1) is provided with a plurality of auxiliary gates (4) arranged side by side, a plurality of electric actuators (2) are fixedly installed on the plurality of auxiliary gates (4), one end of the plurality of electric actuators (2) is fixedly installed on the front surface of the mixed ore bin (3), the discharge port position below the front surface of the mixed ore bin (3) is hingedly connected with a main gate (7) through a plurality of second hinges (6), and the plurality of auxiliary gates (4) are hingedly connected with the lower part of the main gate (7) through two first hinges (5). The material distribution mechanism measurement and control system comprises a centralized control room, the centralized control room is connected with a switch through an optical fiber or a twisted pair wire, the switch is connected between a sintering PLC, the switch is connected between a touch screen, the switch is connected with a power supply, a PLC host, an input module and an output module, an output end of the output module is connected with an input end of a signal isolation, an output end of the signal isolation is connected with an input end of an actuator control output and a circular roller distributor control output, an input end of the input module is connected with an output end of the signal isolation, an input end of the signal isolation is connected with an output end of a layer thickness gauge measurement data and an electric actuator stroke feedback.

2. The automatic material distribution mechanism for sintering material of a sintering machine according to claim 1, characterized in that: The sintering PLC comprises a bin level, a circular roller distributor speed and a sintering machine speed acquisition.

3. The automatic material distribution mechanism for sintering material of a sintering machine according to claim 1, characterized in that: The electric actuator (2) is actively controlled by a hydraulic cylinder, and the hydraulic cylinder is connected with the mixed ore bin (3) and the auxiliary gate (4) through two pin shaft seats.

4. The automatic material distribution mechanism for sintering material of a sintering machine according to claim 3, characterized in that: The hydraulic cylinder adopts an electro-hydraulic proportional control hydraulic cylinder output shaft displacement, and a displacement sensor is arranged on the hydraulic cylinder.

5. The automatic material distribution mechanism for sintering material of a sintering machine according to claim 4, characterized in that: The electro-hydraulic proportional control of the hydraulic cylinder output shaft displacement is that the rodless cavity and the rod cavity of the hydraulic cylinder are connected with an electro-hydraulic proportional directional valve after being connected with a rodless cavity one-way valve and a rod cavity one-way valve in series through an oil pipe, the electro-hydraulic proportional directional valve is further connected with an oil inlet pipe and an oil discharge pipe, the electro-hydraulic proportional directional valve is further connected with an output end of a proportional amplifier through a cable, and an input end of the proportional amplifier is connected with the displacement sensor and a material gate control signal.

6. The automatic material distribution mechanism for sintering material of a sintering machine according to claim 4, characterized in that: The displacement sensor on the hydraulic cylinder is an integrated displacement sensor in the hydraulic cylinder.

7. The automatic material distribution mechanism for sintering material of a sintering machine according to claim 1, characterized in that: The material distribution mechanism measurement and control system generates a special control application program by using corresponding lower programming software.

8. The method according to any one of claims 1 to 7, wherein the method is a method for calculating an automatic material distribution mechanism for a sintering machine, characterized in that, The method comprises the following steps: Real-time detection of the material distribution height of the cross section of the sintering machine trolley is performed by a plurality of level meters, the detection data is collected into the sintering PLC in real time, the sintering PLC calculates the real-time material layer thickness on the sintering trolley through data processing, compares the real-time material layer thickness with a target material layer thickness set value, obtains a position correction value of the main gate (7) and the auxiliary gate (4) through a model control algorithm, and sends a correction instruction signal to the electric actuator (2), the electric actuator (2) drives the auxiliary gate (4) to drive the main gate (7) to act to adjust the material gap opening degree according to the correction instruction of the PLC host, the electric actuator (2) feeds back a push rod stroke signal to the PLC host through the displacement sensor, the PLC host confirms the stroke position through comparison and calculation and keeps the stroke position, so that the position closed-loop automatic control of the material gap opening degree is realized.

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