Iron mould baking detecting and cutting-off system of pig casting machine

Abstract

The utility model relates to a baking detection and cut-off system for an iron mold of a pig casting machine. The baking detection and cut-off system comprises a controller, a flame detector, a gas probe, a medium pipeline pressure transmitter and an electromagnetic cut-off valve, the electromagnetic stop valve is arranged in the baking combustion system and is used for controlling the on-off of a medium pipeline in the baking combustion system; the flame detector and the gas probe are arranged on one side of a burner in the baking combustion system and are respectively used for detecting the flame combustion state and the concentration of toxic combustible gas; the controller receives data of the flame detector, the gas probe and the pipeline pressure, adjusts the electromagnetic stop valve according to the data, controls starting and stopping of the baking combustion system and interlocks the operation state of the pig casting machine system. The baking combustion state and the gas concentration of the pig casting machine are monitored in real time through the flame detector, the gas probe and the pressure probe. Once abnormity is detected, the controller cuts off the baking combustion system through the electromagnetic cut-off valve, potential safety hazards such as blow-off and tempering are avoided, the baking process of the pig casting machine can be effectively monitored, and safe and stable operation of the system is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of steel production and relates to a baking detection and cutting system for an iron mold of a cast iron machine. Background Art

[0002] The iron casting machine is an important process in the blast furnace molten iron production process. It is mainly used to buffer the production rhythm of the blast furnace and the converter, and is an important supplement for regulating the flow of molten iron at the iron-steel interface. After the iron mold is demolded, on the way back to the tail wheel from the lower belt surface, it is necessary to use gas to bake the iron mold after spraying, so as to obtain a dry and clean iron mold to prepare a new round of cast iron. However, due to the unstable combustion of the burner, the entire baking system is in an open space, and the baking combustion is affected by factors such as defire and tempering, which poses a great safety hazard to the safe and stable production of the iron casting machine. The existing technology does not yet have a method for baking monitoring of the iron casting machine and ensuring the safe and stable operation of the iron casting machine system. Utility Model Content

[0003] In view of this, the purpose of the utility model is to solve the baking detection problem of the cast iron machine, and to propose a cast iron machine iron mold baking detection and cutting system to ensure stable and safe production of the cast iron machine.

[0004] In order to achieve the above object, the utility model provides the following technical solutions:

[0005] A casting machine iron mold baking detection and cut-off system, comprising a controller and a flame detector, a gas probe and an electromagnetic cut-off valve connected to the controller;

[0006] The electromagnetic shut-off valve is arranged in the baking combustion system, and is used to control the on-off of the medium pipeline in the baking combustion system; the flame detector and the gas probe are arranged on one side of the burner in the baking combustion system, and are used to detect the flame combustion state and the concentration of combustible and toxic gases respectively; the controller receives data from the flame detector and the gas probe, and adjusts the electromagnetic shut-off valve according to the data, controls the opening and closing of the baking combustion system, and interlocks the operation state of the cast iron machine system.

[0007] Furthermore, the medium pipeline in the baking combustion system includes a gas pipeline and an air pipeline, both of which are connected to the burner, and both of which are provided with an electromagnetic shut-off valve and a manual shut-off valve.

[0008] Furthermore, the gas pipeline and the air pipeline are both provided with pressure sensors, the pressure sensors are connected to medium pipeline pressure transmitters, and the medium pipeline pressure transmitters are connected to the controller.

[0009] Furthermore, the baking combustion system has a plurality of burners, which are arranged side by side below the iron mold.

[0010] Furthermore, it also includes an audible and visual alarm, which is connected to the controller and controls the interlocking signal to interlock with the cast iron machine tipping system.

[0011] Furthermore, the gas probe includes a coal gas probe and a poisonous gas probe.

[0012] The beneficial effects of the utility model are:

[0013] The utility model detects the baking and combustion state of the cast iron machine and the concentration of combustible and toxic gases in real time through flame detectors, gas probes and pressure probes. Once an abnormality is detected, the controller will cut off the baking and combustion system through the electromagnetic cut-off valve, interlock the operation state of the cast iron machine system, avoid safety hazards such as de-fire and tempering, and can effectively detect the baking process of the cast iron machine to ensure the safe and stable operation of the cast iron machine system.

[0014] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings, in which:

[0016] Figure 1 It is an overall schematic diagram of the iron mold baking detection and cutting system of the cast iron machine of the utility model.

[0017] Figure 2 Flow chart for cutting off valves in iron mold baking pipeline.

[0018] Figure 3 This is the operation flow chart of the iron mold baking detection and cutting system of the cast iron machine.

[0019] Figure numerals: 1-controller; 2-sound and light alarm; 3-flame detector; 4-gas probe; 5-burner; 6-air main pipe; 7-gas main pipe; 8-iron mold; 9-electromagnetic shut-off valve; 10-manual shut-off valve; 11-medium pipeline pressure transmitter. DETAILED DESCRIPTION

[0020] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0021] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present utility model. In order to better illustrate the embodiments of the present utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0022] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, 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. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0023] See also Figures 1-2 , which is a casting machine iron mold baking detection and cut-off system, including a controller 1 and a flame detector 3, a gas probe 4 and an electromagnetic cut-off valve 9 connected to the controller 1;

[0024] The electromagnetic cut-off valve 9 is arranged in the baking combustion system to control the on-off of the pipeline in the baking combustion system; the flame detector 3 and the gas probe 4 are arranged on one side of the burner 5 in the baking combustion system to detect the flame combustion state and the gas concentration respectively;

[0025] Among them, the gas probe 4 includes a gas probe and a toxic gas probe. The medium pipeline in the baking combustion system includes a gas pipeline and an air pipeline, both of which are connected to the burner 5, and the gas main pipe 7 and the air main pipe 6 are provided with an electromagnetic shut-off valve 9 and a manual shut-off valve 10. Pressure sensors are provided on the gas pipeline and the air pipeline, and the pressure sensors are connected to the medium pipeline pressure transmitter 11 and then connected to the controller 1. There are multiple burners 5 in the baking combustion system, and the burners 5 are arranged side by side under the iron mold 8. The controller 1 receives data from the flame detector 3, the gas probe 4 and the pipeline pressure, and adjusts the electromagnetic shut-off valve 9 according to the data to control the opening and closing of the baking combustion system and the operation status of the interlocking cast iron machine system.

[0026] In this embodiment, a sound and light alarm 2 is also included. The sound and light alarm 2 is connected to the controller 1, and the control interlocking signal is interlocked with the cast iron machine tipping system.

[0027] See also Figure 3 The working principle of this example is: the combustible gas and air are connected to the burner 5 under the iron mold 8 through pipes of different diameters for uniform combustion, and the iron mold 8 after spraying is baked by the high temperature generated by the combustion. The gas and toxic gas probes are arranged on one side of the burner 5. The combustion is stable and the burner 5 system is leaking by the calibrated specific medium concentration limit. The combustion state can also be detected by the flame detector 3, and the baking combustion state of the cast iron machine can be comprehensively detected by gas / air pressure detection. If the safety production concentration limit specified in the cast iron machine system area is exceeded or the combustion is detected to be extinguished, the electromagnetic shut-off valve 9 on the gas main pipe 7 and the air main pipe 6 is closed by the controller 1 to stop the medium supply of the burner 5. At the same time, the interlocking cast iron machine tipping system stops the operation, and the operator can also manually stop the tipping system operation according to the on-site situation and manually close the manual gate valve in front of the electromagnetic valve. The sound and light alarm 2 on the site is activated to warn the surrounding production personnel not to approach.

[0028] The whole system can provide three modes of operation:

[0029] Mode 1 is the automatic operation mode. After the fault indicator lights of gas detection, flame detection, pressure detection, etc. light up, the automatic interlocking controller 1 executes the solenoid shut-off valve 9 to close, the fault alarm light flashes, and the broadcast fault beeps. After the fault is eliminated, the automatic operation mode needs to be manually restarted.

[0030] Mode 2 is the manual operation mode. When the flameout or gas leakage occurs, the fault indicator light on the controller 1 will light up. At this time, only an alarm will be sounded, and the valve will not be closed. It is suitable for maintenance and other working conditions. After the manual operation is completed, the mode needs to be turned to zero and the system will enter the standby state.

[0031] Mode three is the emergency mode. When a baking emergency fault alarm is found during manual inspection, the emergency stop button can be immediately pressed, and the electromagnetic shut-off valve 9 is immediately closed to ensure baking safety.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A casting machine iron mold baking detection and cutting system, characterized in that: It includes a controller and a flame detector, a gas probe and an electromagnetic shut-off valve connected to the controller; The electromagnetic cut-off valve is arranged in the baking combustion system to control the on-off of the medium pipeline in the baking combustion system; the flame detector and the gas probe are arranged on one side of the burner in the baking combustion system to detect the flame combustion state and the gas concentration respectively; the controller receives data from the flame detector and the gas probe, and adjusts the electromagnetic cut-off valve according to the data to control the opening and closing of the baking combustion system.

2. The iron casting machine iron mold baking detection and cutting system according to claim 1, characterized in that: The medium pipeline in the baking combustion system includes a gas pipeline and an air pipeline, both of which are connected to the burner, and both of which are provided with an electromagnetic shut-off valve and a manual shut-off valve.

3. The iron casting machine iron mold baking detection and cutting system according to claim 2, characterized in that: The gas pipeline and the air pipeline are both provided with pressure sensors, the pressure sensors are connected with medium pipeline pressure transmitters, and the medium pipeline pressure transmitters are connected with the controller.

4. The iron casting machine iron mold baking detection and cutting system according to claim 1, characterized in that: There are multiple burners in the baking combustion system, and the burners are arranged side by side under the iron mold.

5. The iron casting machine iron mold baking detection and cutting system according to claim 1, characterized in that: It also includes an audible and visual alarm, which is connected to a controller and controls an interlocking signal to interlock with the tilting system of the cast iron machine.

6. The iron casting machine iron mold baking detection and cutting system according to claim 1, characterized in that: The gas probes include coal gas probes and poisonous gas probes.

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