Crust breaking cylinder control device

Abstract

The utility model discloses a crust breaking cylinder control device, which belongs to the technical field of aluminum electrolysis equipment and comprises a crust breaking cylinder, an intelligent electric control cabinet, a pressure sensor, a redundant circuit, a crust breaking switch and a power supply. The pressure sensor monitors the air pressure of the air cylinder, and the redundant circuit controls the air cylinder to be recycled, smashed and pulled in advance. A control circuit board, a guide rail power supply and a signal isolator are arranged in the intelligent electric control cabinet, and accurate control over the air cylinder is achieved. The control circuit board has the functions of data acquisition, relay control and alarm control, and the advanced recovery time is set through nixie tube display and keys. According to the utility model, when the hammerhead cannot penetrate through the shell surface or is clamped, automatic supplementary smashing and supplementary pulling can be realized, and an alarm is given after multiple failures, so that hammerhead loss and bulb dissolution are reduced, and production continuity is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to aluminum electrolysis equipment technical field more specifically relates to a kind of shell breaking air cylinder control device. BACKGROUND

[0002] In the production process of electrolytic aluminium, shell breaking air cylinder plays a vital role, which is mainly used to break the hard shell covering the surface of electrolytic cell to ensure that alumina or fluoride salt and other materials can be smoothly put into electrolytic cell to participate in electrochemical reaction. However, the traditional shell breaking air cylinder has a series of problems in application, which seriously affects the production efficiency and product quality. The traditional shell breaking air cylinder has the following main problems:

[0003] (1) The traditional shell breaking air cylinder cannot accurately control the hitting force and time of the hammer head, resulting in that the hammer head is soaked in electrolyte for too long time, causing the hammer head to stick to the electrolyte and form a gourd-shaped head, affecting the quantitative input of materials, producing anode effect, increasing power consumption and reducing yield. In addition, the hammer head wears out quickly, melts quickly, has low service life, pollutes the aluminum liquid and affects the product quality.

[0004] (2) During the shell breaking process, if the shell surface is too thick, the traditional shell breaking air cylinder cannot break through, and cannot alarm in time, which needs manual inspection intervention. If it is not found in time, it will affect the electrochemical reaction of alumina, reduce the production efficiency and waste electrolytic energy consumption.

[0005] (3) Once the hammer head of the traditional shell breaking air cylinder is stuck, it cannot alarm in time, resulting in that the hammer head is soaked in electrolyte for a long time, reduces the service life of the hammer head, affects the iron content in electrolyte and reduces the grade of primary aluminum.

[0006] Therefore, how to provide a shell breaking air cylinder control device capable of recycling shell breaking hammer head in advance and controlling shell breaking air cylinder is a problem to be solved by those skilled in the art. CONTENT OF THE UTILITY MODEL

[0007] Therefore, the utility model provides a shell breaking air cylinder control device capable of recycling shell breaking hammer head in advance and controlling shell breaking air cylinder.

[0008] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0009] A shell breaking air cylinder control device comprises a shell breaking air cylinder, an intelligent electrical control cabinet, a pressure sensor, a redundant circuit, a shell breaking switch and a power supply.

[0010] The pressure sensor is arranged at the exhaust port of the shell breaking air cylinder and used to monitor the air pressure of the shell breaking air cylinder. The pressure sensor is connected to the intelligent electrical control cabinet through a control cable.

[0011] The redundancy circuit is connected with the crust breaking electromagnetic valve and the crust breaking switch of the crust breaking air cylinder respectively, and is used for controlling the crust breaking air cylinder to recover in advance, to supplement the hammering and to supplement the pulling according to the control instruction of the intelligent electrical control cabinet.

[0012] The crust breaking switch is connected with the power supply.

[0013] The intelligent electrical control cabinet is connected with the pressure sensor, the redundancy circuit and the crust breaking switch.

[0014] Preferably, the redundancy circuit comprises a PCB crust breaking normally open contact, a PCB crust breaking normally closed contact and an intermediate relay coil; the PCB crust breaking normally open contact is connected in parallel with the crust breaking switch; the PCB crust breaking normally closed contact is connected in series with the PCB crust breaking normally open contact; the intermediate relay coil is connected in parallel with the crust breaking electromagnetic valve of the crust breaking air cylinder; one side of the intermediate relay coil is connected in series with the PCB crust breaking normally closed contact, and the other side of the intermediate relay coil is connected with the power supply.

[0015] Preferably, the intelligent electrical control cabinet comprises a control circuit board, a guide rail power supply and a signal isolator; the guide rail power supply is connected with the control circuit board and the signal isolator respectively; the signal isolator is further connected with the control circuit board; and the pressure sensor is connected with the control circuit board through the signal isolator.

[0016] Preferably, the control circuit board comprises an isolation power supply, an alarm control circuit, a relay control circuit, a main control MCU and a data isolation acquisition circuit; the data isolation acquisition circuit is used for acquiring the air pressure collected by the pressure sensor and transmitting the air pressure to the main control MCU; the relay control circuit is used for controlling the intermediate relay coil according to the main control MCU; and the data alarm control circuit is used for controlling the alarm to alarm according to the main control MCU.

[0017] Preferably, the control circuit board further comprises a three-digit nixie tube, an increase key and a decrease key; the three-digit nixie tube is used for displaying the advance recovery time; and the increase key and the decrease key are used for setting the advance recovery time.

[0018] Compared with the prior art, the technical scheme can recover the hammer head in advance through the setting of time, reduces the soaking and loss of the hammer head, supplements the hammering and the pulling when the hammer head cannot break the shell surface and is stuck and cannot be pulled out, alarms when the multiple supplementing of the hammering and the pulling is unsuccessful, improves the production efficiency, reduces the dissolution of the ball head, and improves the product quality. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description, obviously, the drawings in the following description are only part of the embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the premise of the provided drawings.

[0020] Fig. 1 The structural schematic diagram of the redundancy circuit provided by the present application is shown in the figure.

[0021] Fig. 2 The overall schematic diagram of the control device provided by the present application is shown in the figure.

[0022] Fig. 3 The wiring diagram of the cylinder control cabinet. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely in the following 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, but not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0024] The embodiment of the present application discloses a shell hitting cylinder control device, as shown in the figure, comprising: a shell hitting cylinder, an intelligent electrical control cabinet, a pressure sensor, a redundancy circuit, a shell hitting switch and a power supply. Figs. 1-3

[0025] The pressure sensor is arranged at the exhaust port of the shell hitting cylinder and is used for monitoring the air pressure of the shell hitting cylinder, and the pressure sensor is connected to the intelligent electrical control cabinet through a control cable.

[0026] The redundancy circuit is connected with the shell hitting electromagnetic valve and the shell hitting switch of the shell hitting cylinder respectively, and is used for controlling the shell hitting cylinder to recycle, supplement and pull out in advance according to the control instruction of the intelligent electrical control cabinet.

[0027] The shell hitting switch is connected with the power supply.

[0028] The intelligent electrical control cabinet is connected with the pressure sensor, the redundancy circuit and the shell hitting switch.

[0029] ​Preferably, the redundancy circuit comprises a PCB shell opening normally open contact, a PCB shell opening normally closed contact and an intermediate relay coil; the PCB shell opening normally open contact is connected in parallel with the shell opening switch, and the PCB shell opening normally closed contact is connected in series with the PCB shell opening normally open contact; the intermediate relay coil is connected in parallel with the shell opening electromagnetic valve of the shell opening cylinder, one side of the intermediate relay coil is connected in series with the PCB shell opening normally closed contact, and the other side of the intermediate relay coil is connected with the power supply. The automatic advance recovery is realized by adding the disconnected normally closed contact, after the disconnected normally closed contact, the intermediate relay coil is powered off, the hammer head of the shell opening cylinder starts to be recovered, and the effect of recovering the shell opening head in advance than the control system of the shell opening cylinder is achieved. The supplementing and the pulling out are both realized by connecting a normally open contact in parallel with the normally open contact of the field slot control cabinet. The device can realize the effect of recovering the shell opening head in advance of the shell opening cylinder without affecting the control system of the shell opening cylinder, and the normal work of the shell opening cylinder is not affected when the redundancy circuit fails.

[0030] Preferably, the intelligent electrical control cabinet comprises a control circuit board, a guide rail power supply and a signal isolator; the guide rail power supply is connected with the control circuit board and the signal isolator respectively, the signal isolator is further connected with the control circuit board, and the pressure sensor is connected with the control circuit board through the signal isolator.

[0031] Preferably, the control circuit board comprises an isolation power supply, an alarm control circuit, a relay control circuit, a main control MCU and a data isolation acquisition circuit; the data isolation acquisition circuit is used for acquiring the air pressure collected by the pressure sensor and transmitting the air pressure to the main control MCU; the relay control circuit is used for controlling the intermediate relay coil according to the main control MCU; and the data alarm control circuit is used for controlling the alarm according to the main control MCU.

[0032] Further, the device can be manually intervened, and therefore, in another embodiment, the control circuit board further comprises a three-digit nixie tube, an increase key and a decrease key; the three-digit nixie tube is used for displaying the advance recovery time, and the increase key and the decrease key are used for setting the advance recovery time. A manual experience intervention priority mechanism is designed in the system. Specifically, a 3-digit nixie tube is designed, 5-grade manual experience intervention adjustment can be realized, and the 5 grades are -0.2 seconds, -0.1 seconds, 0 seconds, 0.1 seconds and 0.2 seconds respectively; in addition, 888 is displayed as no intervention to the original shell opening system; the increase and decrease are realized through two keys, 0.1 second is added or reduced each time, the cycle sequence is the above sequence, 888 is displayed when the increase key is pressed at 0.2, and -0.2 is displayed when the decrease key is pressed at 888. The forming length and depth of the hammer head are solved by adjusting the time.

[0033] The specific working principle is as follows:

[0034] The intelligent electrical control cabinet controls the action of the shell hitting cylinder according to the received air pressure feedback signal, and when starting to work, the intelligent electrical control cabinet controls the shell hitting head to hit the shell according to the shell hitting signal sent by the built-in shell hitting cylinder to the electromagnetic valve.

[0035] The intelligent electrical control cabinet sends a control instruction according to the feedback signal of the pressure sensor, controls the normally closed contact of the redundancy circuit to be disconnected, the middle relay coil to be powered off, and the hammer head of the shell hitting cylinder to start to be recovered, so that the shell hitting head is recovered in advance compared with the control system of the shell hitting cylinder.

[0036] The intelligent electrical control cabinet controls the action of the shell hitting cylinder according to the received air pressure feedback signal, judges that the shell hitting cylinder cannot hit through or the shell hitting head cannot be pulled out, controls the PCB shell hitting normally open contact in the intelligent electrical control cabinet to be closed, makes the shell hitting cylinder repeat the hitting action or the recovery action, and after repeating a predetermined number of times, controls the equipment alarm device to alarm and continues the hitting or recovery action to wait for manual processing.

[0037] The various embodiments in the specification are described in a progressive manner, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between the various embodiments can be referred to each other. For the device disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0038] The above description of the disclosed embodiments enables a person skilled in the art to implement or use the present application. Various modifications to the embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A shell-opening cylinder control device, characterized in that, The utility model relates to an intelligent electrical control cabinet, a pressure sensor, a redundancy circuit, a crust breaking switch and a power supply. The pressure sensor is arranged at an exhaust port of the crust breaking cylinder and is used to monitor the air pressure of the crust breaking cylinder. The redundancy circuit is connected with the crust breaking electromagnetic valve and the crust breaking switch of the crust breaking cylinder respectively and is used to control the crust breaking cylinder to recycle in advance, supplement and pull out according to the control instruction of the intelligent electrical control cabinet. The crust breaking switch is connected with the power supply. The intelligent electrical control cabinet is connected with the pressure sensor, the redundancy circuit and the crust breaking switch. The redundancy circuit comprises a PCB crust breaking normally open contact, a PCB crust breaking normally closed contact and an intermediate relay coil.

2. A shell shooting cylinder control device according to claim 1, wherein The intelligent electrical control cabinet comprises a control circuit board, a rail power supply and a signal isolator.

3. A shelling cylinder control device according to claim 2, wherein The control circuit board comprises an isolation power supply, an alarm control circuit, a relay control circuit, a main control MCU and a data isolation acquisition circuit.

4. A shell shooting cylinder control device according to claim 3, wherein The control circuit board further comprises a three-digit nixie tube, an increase key and a decrease key.

5. A shelling cylinder control device according to claim 4, wherein The three-digit nixie tube is used to display the recycling time in advance. The increase key and the decrease key are used to set the recycling time in advance.

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