JP2009063240A - Clinker treatment device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a clinker treatment device capable of being maintained and managed in safety by quickly acquiring troubles and aged deterioration of peripheral equipment and an exclusive device. <P>SOLUTION: In this clinker treatment device 1 comprising an ash gate 10 connected with equipment for treating clinker ash generated in a coal boiler and discharging clinker ash, a cylinder 20 for opening and closing the ash gate 10 by being variable according to a rate of a pressure of the fluid introduced inside, and a solenoid valve 40 connected with a supply line 101 for supplying the fluid and an exhaust line 102 for exhausting the fluid to open and close flow channels of the supply line 101 and the exhaust line 102, supplying the fluid for making the cylinder 20 variable from the supply line 101, on the other hand, exhausting the fluid inside of the cylinder 20 from the exhaust line 102, a draining system 50 is disposed on a flow channel 103 between the cylinder 20 and the solenoid valve 40 for draining the remaining fluid, when the fluid inside of the cylinder 20 is exhausted from the exhaust line 102. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a clinker processing apparatus that discharges and processes clinker ash generated in a coal boiler.

  2. Description of the Related Art Conventionally, there is a clinker ash treatment apparatus that discharges and processes unburned coal boilers as clinker ash (see, for example, Patent Document 1). In such an apparatus or peripheral equipment to be connected, pipes and valves serving as gas and liquid flow paths are disposed in accordance with fluid specifications in order to process clinker ash. For this reason, for example, in the event of some trouble in equipment such as a dehydration tank or aging deterioration of equipment, gas and liquid are mixed in the same flow path, and dedicated equipment such as valves with different specifications is normal. There was a risk that it would stop working.

  Under such circumstances, there is a demand for an environment and mechanism that can prevent troubles in peripheral equipment, dedicated equipment, etc., and can perform maintenance reliably and promptly.

JP-A-9-079561

  In view of such circumstances, an object of the present invention is to provide a clinker processing apparatus capable of quickly grasping troubles and aging deterioration of peripheral equipment and dedicated equipment and maintaining and managing them safely.

  In order to achieve the above object, the first aspect of the present invention includes an ash gate that is connected to a facility for treating clinker ash generated in a coal boiler and discharges clinker ash, and a ratio of pressure of fluid introduced into the ash gate. A solenoid valve that opens and closes the ash gate by being variable in accordance with a solenoid valve that is connected to a supply line that supplies fluid and an exhaust line that exhausts fluid, and opens and closes the flow path of the supply line and the exhaust line; A clinker processing apparatus configured to supply a fluid for changing the cylinder from the supply line, while exhausting the fluid in the cylinder from the exhaust line, and the fluid in the cylinder is exhausted from the exhaust line. A drain facility for extracting fluid remaining in the flow path between the cylinder and the solenoid valve is provided. In the clinker processing unit.

  In the first aspect, when the fluid inside the cylinder is exhausted from the exhaust line, a drain facility for extracting the fluid remaining in the flow path between the cylinder and the solenoid valve is provided. Thereby, even if liquid remains in the flow path between the cylinder and the solenoid valve due to trouble or deterioration over time, the remaining liquid can be prevented from reaching the solenoid valve.

  According to a second aspect of the present invention, in the clinker processing apparatus according to the first aspect, a part of the flow path in which the drain facility is disposed is formed in a concave shape on the drain facility side. is there.

  In this 2nd aspect, a part of flow path which arrange | positions drain equipment becomes concave shape. As a result, the fluid remaining in the flow path between the cylinder and the solenoid valve is likely to accumulate on the drain facility side, and the remaining liquid can be more reliably prevented from reaching the solenoid valve.

  According to a third aspect of the present invention, there is provided a tank in which one end is connected to the supply line and the other end is connected to the cylinder, so that an internal fluid is pumped to the cylinder according to a supply amount of the fluid, The flow path leading to the tank in a state where an opening direction command is output to the solenoid valve is formed as a supply line, and the closing direction command is output to the solenoid valve. And a control means for forming a flow path from the cylinder to the tank as an exhaust line, the control means being in a state where the ash gate is not closed or from the supply line to the tank. The clinker processing apparatus according to the first or second aspect is characterized in that a drain valve disposed in the drain facility is opened in a state in which is supplied.

  In the third aspect, the drain valve is opened in a state where the ash gate is not closed or in a state where fluid is supplied from the supply line to the tank. Thereby, with the exhaust of the gas from the cylinder, the remaining liquid can be reliably discharged from the drain facility and processed.

  A fourth aspect of the present invention is the clinker processing apparatus according to the third aspect, wherein the control means controls the opening / closing operation of the electromagnetic valve and the opening / closing operation of the drain valve to be synchronized. It is in.

  In the fourth aspect, the opening / closing operations of the electromagnetic valve and the drain valve are synchronized. Thereby, in a state where the ash gate is not closed or in a state where fluid is supplied from the supply line to the tank, the drain valve can be reliably opened, and the remaining liquid can be discharged and processed.

  According to a fifth aspect of the present invention, there is provided the clinker processing apparatus according to any one of the first to fourth aspects, wherein a sensor for detecting that the fluid is discharged from the drain facility is provided.

  In the fifth aspect, the fluid discharged from the drain facility is detected. Thereby, when there is water leakage from the drain valve or the drain equipment main body, safety can be ensured by quickly grasping troubles and aging deterioration and taking appropriate measures.

  According to the present invention, the drain facility for extracting the fluid remaining in the flow path between the cylinder and the solenoid valve is disposed, and the fact that the fluid is discharged from the drain facility is detected. Thus, it is possible to provide a clinker processing apparatus capable of quickly grasping troubles and aging deterioration and maintaining and managing them safely.

  Hereinafter, the best mode for carrying out the present invention will be described. The description of the present embodiment is an exemplification, and the present invention is not limited to the following description.

(Embodiment 1)
FIG. 1 is a schematic configuration diagram illustrating a system of a clinker processing apparatus according to the first embodiment. In the present embodiment, air is assumed as the fluid supplied from the supply line and the fluid exhausted from the exhaust line, and water is assumed as the fluid operating inside the tank.

  As shown in FIG. 1, the clinker processing apparatus 1 operates by connecting an ash gate 10 that discharges clinker ash to equipment (for example, a dewatering tank) that processes clinker ash generated in a coal boiler (not shown). . The ash gate 10 is connected to the cylinder body 20 via a rod 21 and opens and closes by changing the piston 22 in accordance with the ratio of the pressure of fluid introduced from a supply line 101 described later. Although specifically described later, in the present embodiment, either air pressure or water pressure is applied to the piston 22 by the gas introduced from the supply line 101.

  The cylinder body 20 has a piston 22 incorporated therein, and spaces A and B are formed on both sides of the piston 22. These spaces A and B are sealed and partitioned by packing (not shown) provided in the piston 22 so that fluid (gas or liquid) does not leak to the spaces A and B side. In the present embodiment, gas is introduced into the space A and liquid is introduced into the space B in accordance with the flow path of the supply line 101 described later. In this manner, the piston 22 is vertically changed inside the cylinder body 20 by applying air pressure or water pressure to the piston 22. Examples of the packing as described above include a ring member formed of rubber.

  Here, the supply line 101 for supplying the gas and the exhaust line 102 for exhausting the gas are connected via an electromagnetic valve 40 that controls the flow path of the gas by an opening / closing operation. The electromagnetic valve 40 is opened and closed based on a command from a control unit to be described later, thereby switching the flow path of the gas introduced into the cylinder body 20.

  Specifically, when the solenoid valve 40 is energized (excited state), the supply line 101 communicates in the opening direction illustrated by the open command, while the supply line 101 communicates in the closing direction illustrated by the close command. That is, a flow path to the water tank 30 is formed as the supply line 101 by the opening command to the electromagnetic valve 40, and a flow path for exhausting the gas in the space A in the cylinder body 20 is formed as the exhaust line 102.

  On the other hand, the supply line 101 and the exhaust line 102 are switched so as to invert the flow path inside the electromagnetic valve 40 by a closing command for the electromagnetic valve 40, and the flow path reaching the space A in the cylinder body 20 as the supply line 101. And a flow path for exhausting the gas existing above the water tank 30 is formed as the exhaust line 102.

  With the flow path configuration as described above, one end of the water tank 30 is connected to the supply line 101 and the other end is connected to the exhaust line 102 via the cylinder body 20 by the output of the opening command to the electromagnetic valve 40. Thus, the internal working water 31 is pumped to the cylinder body 20 in accordance with the supply amount of the gas supplied from the supply line 101, and at the same time, the working water 31 is introduced into the space B in the cylinder body 20 to the piston 22. When the water pressure is applied, the ash gate 10 is opened and clinker ash is discharged. At this time, the gas in the space A is pushed out to the exhaust line 102 and exhausted.

  On the other hand, the space A side in the cylinder body 20 is connected to the supply line 101 and the space B side is connected to the exhaust line 102 via the water tank 30 by the output of the close command to the electromagnetic valve 40, thereby supplying the supply line 101. When the gas is introduced into the space A in the cylinder body 20 in accordance with the amount of gas supplied from the cylinder and air pressure is applied to the piston 22, the working water 31 existing in the space B is returned to the water tank 30 at the same time. The ash gate 10 is closed, and the clinker ash discharge is also stopped. At this time, the gas existing above the water tank 30 is exhausted from the exhaust line 102.

  Further, in the clinker processing apparatus 1, a drain facility 50 (a portion indicated by a dotted line) for extracting a fluid remaining on a flow path from the cylinder body 20 to the solenoid valve 40 connects the cylinder body 20 and the solenoid valve 40. It is disposed in the flow path 103. In the present embodiment, the working water leaked from the cylinder body 20 is assumed as the fluid remaining on the flow path from the cylinder body 20 to the solenoid valve 40. Such a drain facility 50 includes a discharge line 51 that discharges the fluid remaining in the flow path 103 between the cylinder body 20 and the electromagnetic valve 40, and a drain valve 52 that opens and closes the discharge line 51. The drain valve 52 is opened and closed in synchronization with the opening and closing operation of the electromagnetic valve 40. In the present embodiment, by providing such a drain facility 50, the working water leaked from the cylinder body 20 can be discharged and treated before reaching the solenoid valve 40. It is possible to prevent the gas solenoid valve 40 from being corroded, malfunctioned or broken down.

  The various controls related to the electromagnetic valve 40, the drain valve 52, and the clinker processing apparatus 1 described above are executed by a control unit (not shown). As such a control means, any control means may be used as long as it has a function capable of controlling the operation of the whole or a part of the peripheral equipment and the target device based on various control signals. Examples thereof include a control device including a memory.

  Here, specific control means will be described. In the present embodiment, there is a control circuit shown in FIG. 2 as one of the control means. FIG. 2 is a block diagram illustrating a control circuit of the clinker processing apparatus according to the first embodiment.

  As shown in FIG. 2, the control circuit 60 is configured by connecting the sequence control device 61 to the electromagnetic valve 40 and connecting to the drain valve 52 via the relay 62. The solenoid valve 40 has a coil A that operates to open (open) in an excited state and a coil B that operates to close (close) in an excited state. The coil A and the coil B of the electromagnetic valve 40 are configured to synchronize with the coil C of the drain valve 52 via the relay 62, and the drain valve 52 is opened and closed according to the voltage application state to the electromagnetic valve 40. The discharge line 51 is controlled.

  Specifically, as shown in FIG. 2, when a voltage is applied based on a control signal from the sequence control device 61 and an energized state is established, the coil A side is opened by the output of the open command or the close command, or the coil B side is Simultaneously with the operation to close, the coil C operates so that the drain valve 52 is closed when the relay 62 operates and the contact 63 is turned on. On the other hand, when the voltage application is stopped based on the control signal from the sequence control device 61 and the deenergized state is established, the contact 63 is turned off and the deenergized state is established, the coil A side of the solenoid valve 40 is closed and the coil B side is opened. And the coil C is operated so that the drain valve 52 is opened.

  In this embodiment, when such a control circuit 60 outputs an opening command to the electromagnetic valve 40 and forms a flow path to the space B in the cylinder body 20 as the supply line 101, a drain valve is synchronized with the flow path. 52 is also controlled to be opened. On the other hand, when a closing command for the electromagnetic valve 40 is output and a flow path reaching the space A in the cylinder body 20 is formed as the supply line 101, the drain valve 52 is controlled to close in synchronization therewith. That is, in the drain valve 52, the drain valve 52 is opened in a state where the flow path 103 is not in communication with the supply line 101, while the drain valve 52 is closed in a state in which the flow path 103 is in communication with the supply line 101. The Thereby, when the air pressure is applied to the flow path 103, the drain valve 52 can be reliably closed.

  Moreover, you may make it provide the sensor which detects that the liquid discharged | emitted from the drain equipment 50 as another control means, for example. Such a sensor may be any sensor that reacts to a liquid. When a liquid is detected, for example, the fact is transmitted to a control device that controls equipment or a monitoring device that monitors equipment. Anything that has a function that can be used. The installation location is not particularly limited as long as it can be detected that the liquid has been discharged from the drain facility 50. Thereby, the water leak from the drain facility 50 can be grasped quickly, and for example, it is possible to appropriately cope with the water leak due to aging deterioration such as the packing attached to the piston 22. For example, troubles can be prevented by taking appropriate measures according to the type of liquid (for example, water or oil) handled by the clinker processing apparatus 1.

  Here, the control process of the clinker processing apparatus 1 will be described based on the control means described above. FIG. 3 is a flowchart showing a control process of the clinker processing apparatus according to the first embodiment.

  As shown in FIG. 3, when an open command is output to the solenoid valve 40 by application of voltage (S1), the supply line 101 communicates in the opening direction shown in FIG. When gas is introduced into the water tank 30 from the supply line 101, the working water 31 in the water tank 30 is pumped to the cylinder body 20 side, the ash gate 10 is opened, and the clinker ash is discharged. Then, it is determined whether or not the ash gate 10 is closed (S2).

  Here, when it is determined that the ash gate 10 is not closed (S2; Yes), an opening command is output as a control signal for the drain valve 52 (S3). When an opening command is output to the drain valve 52, the drain valve 52 is opened (S4), and the liquid remaining on the flow path 103 is discharged (S5). That is, when the ash gate 10 is not closed, it means that the piston 22 is pressed toward the space A in the cylinder body 20, and the gas in the space A portion is on the flow path 103. The drain valve 52 is opened after it is confirmed that the exhausted state, that is, the state where no pressure is applied to the space A from the exhaust line 102. Thereby, it is possible to discharge and process unnecessary liquid remaining on the flow path 103 connecting the cylinder body 20 and the electromagnetic valve 40 as the gas in the space A is exhausted.

  In the present embodiment, the opening command for the electromagnetic valve 40 in step S1 and the opening of the drain valve 52 in step S4 are basically the same timing due to the synchronization of the coils, but there are troubles related to the ash gate 10 or other control systems. Assuming that the drain valve 52 is not opened in synchronization with the opening command for the electromagnetic valve 40 due to the above trouble, the opening command for the drain valve 52 is output again after confirming the open / closed state of the ash gate 10. Thereby, the valve which should operate | move at the time of electricity supply can be operated reliably, and the clinker processing apparatus 1 can be maintained more safely.

  On the other hand, when a closing command for the electromagnetic valve 40 is output, the supply line 101 communicates in the closing direction shown in FIG. 1, whereby gas is introduced from the supply line 101 to the space A in the cylinder body 20. Then, the piston 22 is pressed toward the space B in the cylinder body 20 and the working water 31 is returned to the water tank 30 side, whereby the ash gate 10 is closed. At this time, the drain valve 52 is closed in synchronization with the closing command for the electromagnetic valve 40. And when application of a voltage is stopped, the solenoid valve 40 and the drain valve 52 will return to the original state, and the clinker processing apparatus 1 will stop (S6).

  In step S2, if the ash gate 10 is closed (S2; No), an abnormality is predicted for peripheral equipment or dedicated equipment, and maintenance is instructed (S7). Similarly, when the above-described sensor detects that the liquid is discharged from the drain facility 50 (S100), the maintenance execution may be instructed. As a result, it is possible to prevent troubles in advance by quickly grasping causes such as aging deterioration of various devices or parts and taking appropriate measures.

  As described above, in the present embodiment, since the drain facility 50 for extracting the fluid remaining in the flow path 103 between the cylinder main body 20 and the electromagnetic valve 40 is disposed outside, for example, in the cylinder main body 20 Therefore, even if the working water leaks, the working water can be prevented from reaching the electromagnetic valve 40. Accordingly, troubles such as corrosion, malfunction, and failure of the electromagnetic valve 40 can be prevented in advance, and the safety of the clinker processing apparatus 1 can be ensured. In addition, by providing a sensor in the drain facility 50, if there is water leakage from the drain valve 52 or the drain facility 50 body, the cause of trouble or aging deterioration can be quickly grasped and appropriate measures such as maintenance and repair can be taken. Can be taken early. For example, the trouble can be prevented beforehand by detecting the water leakage due to the deterioration of the packing of the piston 22 at an early stage.

(Other embodiments)
In the first embodiment described above, a part of the flow path 103 in which the drain facility 50 is disposed has a linear shape. However, the present invention is not particularly limited thereto. For example, the flow in which the drain facility 50 is disposed as illustrated in FIG. A part of the path 103A may be formed in a concave shape (for example, a U shape) with respect to the drain facility 50 side. In this case, since the leaked water is easily collected, it can be easily discharged from the drain facility 50. Thereby, for example, since the working water leaked from the cylinder body 20 can be prevented from reaching the electromagnetic valve 40 immediately, the clinker processing apparatus 1A can be more safely maintained and managed.

  In the above-described first embodiment, the drain facility 50 is provided with the sensor for detecting the liquid. However, the present invention is not particularly limited thereto. For example, a sensor for detecting the gas may be provided. As a result, for example, when using gas that requires caution in the clinker processing apparatus 1, it is possible to quickly grasp the gas leakage from the drain facility 50 and take appropriate measures, so that it is safer. It can be maintained.

It is a schematic block diagram which shows the system of the clinker processing apparatus which concerns on Embodiment 1. FIG. It is a block diagram which shows the control circuit of the clinker processing apparatus which concerns on Embodiment 1. FIG. It is a flowchart which shows the control processing of the clinker processing apparatus which concerns on Embodiment 1. FIG. It is a schematic block diagram which shows the system of the clinker processing apparatus which concerns on other embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Ash gate 20 Cylinder body 21 Rod 22 Piston 30 Water tank 31 Working water 40 Solenoid valve 50 Drain equipment 51 Drain line 52 Drain valve 61 Sequence control device 62 Relay 63 Contact 101 Supply line 102 Exhaust line 103, 103A Flow path

Claims (5)

An ash gate that is connected to a facility for treating clinker ash generated in a coal boiler and discharges clinker ash, and a cylinder that opens and closes the ash gate by varying according to the ratio of the pressure of the fluid introduced into the interior, An electromagnetic valve connected to a supply line for supplying fluid and an exhaust line for exhausting fluid, and opening and closing a flow path of the supply line and the exhaust line, and supplying fluid for changing the cylinder from the supply line On the other hand, in the clinker processing apparatus configured to exhaust the fluid inside the cylinder from the exhaust line,
A clinker processing apparatus comprising a drain facility for extracting fluid remaining in a flow path between the cylinder and the solenoid valve when the fluid inside the cylinder is exhausted from the exhaust line. The clinker processing apparatus according to claim 1, wherein a part of the flow path in which the drain facility is disposed is formed in a concave shape on the drain facility side. One end is connected to the supply line and the other end is connected to the cylinder, so that an internal fluid is pumped to the cylinder according to the amount of fluid supplied, and an open direction command is sent to the solenoid valve. Is formed as a supply line, and a command in the closing direction is output to the electromagnetic valve to reach the tank via the cylinder. And a control means for forming the flow path as an exhaust line, wherein the control means has the drain in a state where the ash gate is not closed or a fluid is supplied from the supply line to the tank. The clinker processing apparatus according to claim 1 or 2, wherein a drain valve disposed in the facility is opened. 4. The clinker processing apparatus according to claim 3, wherein the control unit controls the opening / closing operation of the electromagnetic valve and the opening / closing operation of the drain valve to be synchronized. The clinker processing apparatus according to any one of claims 1 to 4, further comprising a sensor that detects that fluid is discharged from the drain facility.

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