JP2017040456A - Clinker occurrence detection device, clinker occurrence detection*removal device, clinker occurrence detection method and clinker occurrence detection*removal method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a clinker occurrence detection device and a clinker occurrence detection method, enabling the occurrence of clinker to be conveniently and accurately detected, and to provide a clinker occurrence detection*removal device and a clinker occurrence detection*removal method, enabling the occurrence of clinker to be conveniently and accurately detected and enabling the clinker to be conveniently removed.SOLUTION: A clinker occurrence detection device for detecting the occurrence of clinker adhered to an inner surface of flue piping 9 for feeding exhaust gas exhausted from a waste treatment furnace comprises: pressure difference measuring means 15 for measuring a pressure difference between a pressure at an upstream side position in the flue piping 9 and a pressure at a downstream side position; temperature measuring means 19 for measuring a temperature near the inner surface of the flue piping 9; and determination means 20 for determining that clinker occurs when the pressure difference measured value measured by pressure difference measuring means 15 is equal to or more than a prescribed pressure difference or when the temperature measured value measured by the temperature measuring means 19 is equal to or less than a prescribed temperature even when the differential pressure measured value is lower than the prescribed differential pressure.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a clinker occurrence detection device, a clinker occurrence detection / removal device, a clinker occurrence detection method, and a clinker occurrence detection / removal method.

  In a waste treatment furnace, dust in the exhaust gas adheres to and accumulates on the inner surface of the flue pipe, and a lump deposit (hereinafter referred to as “clinker”) is formed on the inner surface of the flue pipe. It may happen. If the flue is narrowed or partially blocked, the exhaust efficiency will deteriorate, and the induction fan will be overloaded, causing equipment troubles and increasing operating costs. In addition, an enlarged clinker may fall and damage various facilities. In this clinker, various kinds of various components grow in a complicated and repeated physical change such as melting and solidification and chemical reaction such as oxidation or acid-alkali reaction to form a strong lump deposit. In order to remove this clinker, it is necessary to stop the operation of the incinerator and remove it manually. However, it is extremely difficult to remove the strong clinker manually in the flue where dust is accumulated. It is. In addition, when the clinker is growing greatly, a dedicated instrument and a large machine are required, so that the removal cost increases.

  Patent Document 1 discloses an exhaust gas flue blockage monitoring system. In this patent document 1, in an exhaust gas flue in a waste melting furnace, a differential pressure detecting means for detecting a differential pressure between an upstream pressure and a downstream pressure in the flue, and the differential pressure detecting means detects the pressure difference. An alarm unit that issues an alarm when the differential pressure reaches a predetermined value, and a blockage state determination unit that determines that the flue is blocked are provided. According to this flue pipe blockage monitoring system, when the differential pressure reaches a predetermined value, an alarm is issued by the alarm means, and it is determined that the flue pipe is blocked. In addition to preventing flue blockage, unnecessary flue pipe cleaning work can be eliminated, and the operating rate of the melting facility can be improved.

JP2007-263514

  However, in Patent Document 1, a differential pressure between the pressure on the upstream side of the flue and the pressure on the downstream side is detected, and when the differential pressure reaches a predetermined value, an alarm is issued to notify that the flue is blocked. However, if the dust deposits are at the same level on the upstream side and downstream side of the flue, the differential pressure does not become a sufficient value and the occurrence of blockage is not detected.

  In addition, since the pressure in the flue of the melting furnace constantly fluctuates depending on the melting state in the melting furnace, it is complicated and complicated to set a predetermined value for detecting the occurrence of clogging. In patent document 1, the warning which detects the obstruction | occlusion of a flue and notifies the time which needs cleaning is only stopped. For this reason, removal of the accumulated clinker must be performed manually, and there is a problem that a great deal of labor is required during maintenance.

  In view of such circumstances, the present invention provides a clinker occurrence detection device and a clinker occurrence detection method that can easily and accurately detect the occurrence of clinker, and easily and accurately detect the occurrence of clinker and easily remove the clinker. It is an object of the present invention to provide a clinker occurrence detection / removal device and a clinker occurrence detection / removal method.

  According to the present invention, the above-mentioned problems are the following first invention and second invention with respect to the clinker occurrence detection device, the following third invention with respect to the clinker occurrence detection / removal device, and the following third invention with respect to the clinker occurrence detection method. The fourth and fifth inventions and the clinker generation detection / removal method are solved by the following sixth invention.

<First invention>
The clinker generation detecting device according to the first invention detects the generation of clinker adhering to the inner surface of the flue pipe for feeding the exhaust gas from the waste treatment furnace.

  In such a clinker generation detecting device, in the first invention, a differential pressure measuring means for measuring a differential pressure between a pressure at an upstream position in the flue pipe and a pressure at a downstream position, and a temperature in the vicinity of the inner surface of the flue pipe When the differential pressure measurement value by the differential pressure measurement means is greater than or equal to a predetermined differential pressure, or even if the differential pressure measurement value is smaller than the predetermined differential pressure, the temperature by the temperature measurement means And a determination unit that determines that the clinker is generated when the measured value is equal to or lower than a predetermined temperature.

  When the clinker is generated on the inner surface of the flue pipe, the flue is narrowed or partially blocked, so that the differential pressure between the pressure at the upstream side and the pressure at the downstream side in the flue pipe increases. In the first invention, when the differential pressure measurement value by the differential pressure measuring means is greater than or equal to the predetermined differential pressure, the determining means determines that the clinker is generated, and as a result, the generation of the clinker is detected.

  However, for example, when the clinker adherence is similar between the upstream position and the downstream position in the flue pipe, the differential pressure is small even though the clinker is generated. By the way, the measured value of the temperature in the vicinity of the inner surface of the flue pipe by the temperature measuring means indicates the temperature of the exhaust gas flowing through the flue pipe when the clinker is not attached to the inner surface of the flue pipe, but the clinker is attached. And since a temperature measurement sensor is covered with a clinker, a measured value shows temperature lower than the temperature of exhaust gas. Therefore, in the first invention, even if the differential pressure is not equal to or higher than the predetermined differential pressure, when the temperature measurement value of the flue pipe inner surface by the temperature measuring means is equal to or lower than the predetermined temperature, the clinker is detected by the determining means. As a result, it is determined that the clinker is generated.

<Second invention>
Similarly to the first invention, the clinker generation detecting device according to the second invention also detects the generation of clinker adhering to the inner surface of the flue pipe for supplying the exhaust gas from the waste treatment furnace.

  In such a clinker generation detection device, in the second invention, the clinker is generated when the temperature measurement means for measuring the temperature in the vicinity of the inner surface of the flue pipe and the temperature measurement value by the temperature measurement means is equal to or lower than a predetermined temperature. It is characterized by providing the determination means which determines.

  In the second invention, the temperature measurement value in the vicinity of the inner surface of the flue pipe by the temperature measuring means is equal to or lower than a predetermined temperature regardless of the difference in pressure between the pressure at the upstream position and the pressure at the downstream position in the flue pipe. When it is, it is determined by the determination means that the clinker is generated.

<Third invention>
The clinker occurrence detection / removal device according to the third invention is a clinker occurrence detection device according to the first invention or the second invention, wherein the clinker occurrence detection device strikes the outer surface of the flue pipe and peels the clinker from the inner surface of the flue pipe. A removal means for removing the clinker, which has a striking device, or also has an air jet device which injects air to the peeled clinker and sends the clinker downstream, in addition to the striking device And a control means for controlling the removing means so that the clinker removing operation by the removing means is performed when it is judged by the judging means of the clinker occurrence detecting device that the clinker is generated. .

  In the third invention, when it is determined by the determination means that a clinker is generated, the control means controls the removal means so that the clinker removal operation by the removal means is performed. In the clinker removing operation, the striker of the removing means strikes the outer surface of the flue pipe and gives an impact to the flue pipe to separate the clinker from the inner surface of the flue pipe. While the clinker is peeled off from the inner surface of the flue pipe by beating, the air injection device injects air onto the peeled clinker and sends the clinker downstream.

<Fourth Invention>
The clinker generation detection method according to the fourth aspect of the invention detects the generation of clinker adhering to the inner surface of the flue pipe for supplying the exhaust gas from the waste treatment furnace.

  In such a clinker generation detection method, in the fourth invention, a differential pressure measuring step for measuring a differential pressure between the pressure at the upstream position in the flue pipe and the pressure at the downstream position, and the temperature in the vicinity of the inner surface of the flue pipe When the differential pressure measurement value in the differential pressure measurement step is greater than or equal to a predetermined differential pressure, or even if the differential pressure measurement value is smaller than the predetermined differential pressure, the temperature measurement step And a determination step of determining that the clinker is generated when the measured temperature value is equal to or lower than a predetermined temperature.

<Fifth invention>
The clinker generation detection method according to the fifth invention detects the generation of clinker adhering to the inner surface of the flue pipe for sending the exhaust gas from the waste treatment furnace, as in the fourth invention.

  In such a clinker generation detection method, in the fifth invention, a clinker is generated when a temperature measurement step of measuring the temperature in the vicinity of the flue pipe inner surface and a temperature measurement value in the temperature measurement step is equal to or lower than a predetermined temperature. And a determination step for determining that the device is present.

<Sixth Invention>
The clinker occurrence detection / removal method according to the sixth invention is determined that clinker is generated in each step of the clinker occurrence detection method of the fourth invention or the fifth invention and the determination step of the clinker occurrence detection method. When hitting the outer surface of the flue pipe to perform a striking process for peeling the clinker from the inner surface of the flue pipe, or in addition to the striking process, air is injected into the peeled clinker to remove the clinker. And a removal step of removing the clinker that also performs an air injection step to be sent to the downstream side.

  As described above, in the clinker generation detecting device and method according to the present invention, only when the differential pressure between the pressure at the upstream side position and the pressure at the downstream side position in the flue pipe is equal to or higher than the predetermined differential pressure. Therefore, when the differential pressure is smaller than the predetermined differential pressure, or when the temperature measurement value in the vicinity of the inner surface of the flue pipe is equal to or lower than the predetermined temperature regardless of the magnitude of the differential pressure, it is determined that the clinker is generated. The Therefore, even when the differential pressure is not increased despite the occurrence of the clinker, the generation of the clinker can be accurately detected. In addition to the measured differential pressure value, or instead of the measured differential pressure value, the presence or absence of clinker is determined based on the measured temperature value. Therefore, it is necessary to consider complicated condition settings when setting the predetermined differential pressure. This makes it easier to detect the occurrence of clinker.

  Furthermore, in the clinker occurrence detection / removal device and method according to the present invention, when the occurrence of clinker is detected, the clinker is removed by the removal device (process), so it is not necessary to manually remove the clinker. It is possible to reduce the labor of clinker removal work during regular maintenance.

1 is a schematic view of a waste treatment apparatus according to an embodiment of the present invention. It is the schematic of the clinker generation | occurrence | production detection and removal apparatus provided in the waste disposal apparatus of FIG.

  Hereinafter, a waste disposal apparatus according to an embodiment of the present invention will be described with reference to FIGS. 1 and 2 of the accompanying drawings.

  1 is a schematic view of a waste treatment apparatus according to an embodiment of the present invention. As shown in FIG. 1, the waste treatment apparatus includes a waste incinerator 1 as a waste treatment furnace, and a boiler 8 that generates steam by heat exchange with the exhaust gas from the waste incinerator 1, A flue pipe 9A for sending the exhaust gas from the boiler 8 to the temperature reduction tower 11 described later, a flue pipe 9B for sending the exhaust gas from the temperature reduction tower 11 to the dust collector 12 described later, A clinker generation detecting / removing device 10 for detecting the generation of clinker attached to the inner surface of the flue pipe 9A or 9B and removing the clinker, a temperature reducing tower 11 for reducing the temperature of exhaust gas from the boiler 8, and the reduction And a dust collector 12 that removes dust and the like from the exhaust gas reduced in temperature by the warm tower 11. Further, the exhaust gas collected by the dust collector 12 is attracted by the induction blower 13 and discharged from the chimney 14 to the atmosphere.

  The waste incinerator 1 includes a furnace main body 2 that forms a main combustion chamber 3 and a secondary combustion chamber 4 located on the downstream side (right side in FIG. 1) of the main combustion chamber 3 in the furnace, and the furnace main body. 2 and an ash content discharge unit 6 for discharging unburned material and incombustible material remaining after combustion of the waste as ash. The secondary combustion chamber 4 is also a part of the boiler 8 and is the vicinity of the inlet of the boiler 8.

  When the waste incinerator 1 is a grate-type incinerator, a grate 7 is provided below the main combustion chamber 3 to send the waste to the downstream side in the main combustion chamber 3. A plurality of wind boxes (not shown) provided in order in the left-right direction in FIG. 1 are provided below the grate 7 and are sent from below through the wind box and the grate 7. Primary combustion air is supplied into the furnace by a pressure feed blower (not shown). The waste on the grate 7 is incinerated by drying, burning and post-combusting while being sent downstream by the grate 7, and the ash content discharge unit 6 provided at the downstream end of the waste incinerator 1. Ash is discharged from Further, the exhaust gas generated by the incineration treatment of the waste in the main combustion chamber 3 is sent to the boiler 8 after the unburned gas contained in the exhaust gas is secondarily burned in the secondary combustion chamber 4.

  The boiler 8 is attached to the waste incinerator 1, and a bent flow passage space is formed following the secondary combustion chamber 4, and heat exchange with exhaust gas is performed by a water cooling wall or a heat transfer tube group on the inner wall surface. Waste heat is recovered and exhaust gas is discharged from the upper exhaust port 8A.

  The flue pipe 9 </ b> A extends from the exhaust port 8 </ b> A of the boiler 8 and is connected to the temperature reduction tower 11, and sends the exhaust gas from the boiler 8 to the temperature reduction tower 11. The flue pipe 9 </ b> B is connected to the dust collector 12 from the temperature reduction tower 11, and sends the exhaust gas from the temperature reduction tower 11 to the dust collector 12. The flicker pipe 9A or 9B (9B in FIG. 1) is provided with the clinker generation detection / removal device 10 as described above, and the clinker generation detection / removal device 10 is connected to the inner surface of the flue pipe 9A or 9B. The occurrence of clinker adhering to the surface is detected and the clinker is removed. The configuration of the clinker generation detection / removal device 10 will be described later with reference to FIG.

  The temperature reducing tower 11 sprays the exhaust gas introduced into the temperature reducing tower 11 through the flue pipe 9A so as to lower the temperature of the exhaust gas to a temperature suitable for dust removal in the next dust collector 12. It has become. The temperature reducing tower 11 and the dust collector 12 are connected by the flue pipe 9B, and the exhaust gas reduced in temperature by the temperature reducing tower 11 is introduced into the dust collector 12 through the flue pipe 9B. The dust collector 12 removes dust such as fly ash contained in the exhaust gas. The removed dust is discharged from the lower part of the dust collector 12. As the dust collector 12, for example, a dust collector such as a bag filter system or an electric dust collection system can be used. The exhaust gas removed by the dust collector 12 is brought to the chimney 14 by the induction blower 13 and released to the atmosphere. In the flue pipe 9B, the flue gas cooled by the temperature reducing tower 11 is sent, and the dust contained in the flue gas is in a temperature environment in which the flue pipe 9B is likely to adhere and accumulate on the inner surface of the flue pipe 9B. It is effective to provide a clinker occurrence detection / removal device 10 at 9B to detect and remove clinker occurrence. Of course, it goes without saying that the clinker generation detection / removal device 10 may be provided in the flue pipe 9A.

  Next, the configuration of the clinker occurrence detection / removal device 10 will be described with reference to FIG. FIG. 2 is a schematic view of the clinker generation detection / removal device 10 provided in the flue pipe 9B connecting the temperature reducing tower 11 and the dust collector 12 of the waste treatment apparatus of FIG. In FIG. 2, the flow of signals between the respective parts is indicated by broken lines. The clinker generation detection / removal device 10 calculates the differential pressure between the pressure at the upstream position (left end side in FIG. 2) and the pressure at the downstream position (right end side in FIG. 2) in the flue pipe 9B. A differential pressure measuring means 15 for measuring, a thermometer 19 as a temperature measuring means for measuring the temperature in the vicinity of the inner surface of the flue pipe 9B, a differential pressure measurement value by the differential pressure measuring means 15 and a temperature measurement by the thermometer 19 Determination means 20 for determining whether or not clinker is generated on the inner surface of the flue pipe 9B based on the value, removal means 21 for removing the clinker adhering to the inner surface of the flue pipe 9B, and determination by the determination means 20 And a control device 24 as control means for controlling the operation of the removal means 21 based on the result.

  In the present embodiment, the differential pressure in the flue pipe 9B and the temperature in the vicinity of the inner surface of the flue pipe 9B, which are criteria for determining whether or not the clinker is generated, are set in advance. Hereinafter, the preset differential pressure and temperature are referred to as “predetermined differential pressure” and “predetermined temperature”, respectively.

  The differential pressure measuring means 15 includes an upstream pressure gauge 16 provided at an upstream position of the flue pipe 9B, a downstream pressure gauge 17 provided at a downstream position of the flue pipe 9B, and an upstream pressure gauge 16 Differential pressure calculating means 18 for calculating a differential pressure between the pressure measured in step (upstream pressure measurement value) and the pressure measured by the downstream pressure gauge 17 (downstream pressure measurement value) as a differential pressure measurement value. doing. In the present embodiment, the “differential pressure measurement value” is calculated by the differential pressure calculation means 18 as an absolute value of the difference between the upstream pressure measurement value and the downstream pressure measurement value. As seen in FIG. 2, the upstream pressure gauge 16 and the downstream pressure gauge 17 are attached to the inner peripheral wall of the flue pipe 9 </ b> B.

  As shown in FIG. 2, the thermometer 19 is attached to the inner peripheral wall of the flue pipe 9B at a position between the upstream pressure gauge 16 and the downstream pressure gauge 17 in the longitudinal direction of the flue pipe 9B for exhaust gas. The temperature in the vicinity of the inner surface of the flue pipe 9B (a space slightly on the pipe axis side from the inner peripheral surface) is measured. The sensor part of the thermometer 19 is slightly exposed from the inner peripheral surface of the flue pipe 9B to the space on the pipe shaft side and is in contact with the exhaust gas in the flue pipe 9B, and when no clinker is generated, the exhaust gas temperature is set. Measuring. A plurality of thermometers 19 may be provided in the longitudinal direction and the circumferential direction of the flue pipe 9B.

  When the differential pressure (differential pressure measurement value) calculated by the differential pressure calculation means 18 of the differential pressure measurement means 15 is equal to or greater than a predetermined differential pressure, the determination means 20 is partially blocked or narrowed in the flue pipe 9B by the clinker. It is determined that a clinker is generated on the inner surface of the flue pipe 9B. Further, even when the differential pressure measurement value is smaller than the predetermined differential pressure, the determination means 20 is configured such that when the temperature measurement value by the thermometer 19 is equal to or lower than the predetermined temperature, the sensor unit of the thermometer 19 is in the clinker. It is determined that the exhaust gas in the covered flue pipe 9B is not in contact, and it is determined that clinker is generated on the inner surface of the flue pipe 9B. In the present embodiment, the clinker occurrence is detected by the differential pressure measuring means 15, the thermometer 19, and the determining means 20.

  The removing means 21 strikes the outer surface (circumferential wall surface) of the flue pipe 9B to peel off the clinker from the inner surface of the flue pipe 9B, and jets air to the peeled clinker to remove the clinker. And an air injection device 23 to be sent to the downstream side. The striking device 22 is located outside the flue pipe 9B and can reciprocate in the radial direction of the flue pipe 9B. As will be described later, when removing the clinker, the striking device 22 moves forward toward the outer surface of the flue pipe 9B and strikes the outer surface at the tip thereof to give an impact. The clinker is peeled from the inner surface of the flue pipe 9B by vibrating the pipe 9B. The striking device 22 is in a standby state at the retracted position shown in FIG. 2 except when striking the flue pipe 9B.

  Moreover, the nozzle is attached to the surrounding wall of the flue piping 9B in the upstream position rather than the striking device 22 in this embodiment. The tip of the nozzle is located in the flue pipe 9B, and air can be jetted from the nozzle toward the downstream side. The air injection device 23 sends the clinker downstream by injecting the air onto the clinker peeled from the inner surface of the flue pipe 9B. It is not essential to provide the air injection device 23. For example, when the amount of clinker peeled off from the inner surface of the flue pipe 9B is small, the clinker is sent downstream by the exhaust gas flowing in the flue pipe 9B. It is good.

  As described above, when it is determined by the determination means 20 that the clinker is generated, the control device 24 performs the clinker removal operation by the removal means 21, that is, the flaw on the outer surface of the flue pipe 9B by the striking device 22. The striking device 22 and the air ejecting device 23 are controlled so that the air is ejected by the striking and air ejecting device 23. Further, when the determination unit 20 determines that the clinker is generated, the control device 24 notifies the operator of the occurrence of the clinker by a not-shown notification unit (for example, a display device or a notification sound generation device). The notification means may be controlled.

  Next, the clinker occurrence detection / removal operation by the clinker occurrence detection / removal apparatus 10 will be described. First, the differential pressure measuring means 15 measures the upstream pressure measurement value in the flue pipe 9B with the upstream pressure gauge 16, and measures the downstream pressure measurement value in the flue pipe 9B with the downstream pressure gauge 17. . The differential pressure calculation means 18 receives a signal indicating the upstream pressure measurement value from the upstream pressure gauge 16 and also receives a signal indicating the downstream pressure measurement value from the downstream pressure gauge 17, and receives the upstream pressure measurement value and The absolute value of the difference from the downstream pressure measurement value is calculated as the differential pressure measurement value. The thermometer 19 measures the temperature in the vicinity of the inner surface of the flue pipe 9B.

  The determination unit 20 compares the differential pressure measurement value calculated by the differential pressure calculation unit 18 with a predetermined differential pressure set in advance, and a clinker is generated when the differential pressure measurement value is equal to or greater than the predetermined differential pressure. It is determined that As described above, in this embodiment, the differential pressure measurement value compared with the predetermined differential pressure is the absolute value of the difference between the upstream pressure measurement value and the downstream pressure measurement value. In both cases where the pressure value is greater than the downstream pressure value and the downstream pressure value is greater than the upstream pressure value, the clinker is generated when the measured differential pressure is equal to or greater than the predetermined differential pressure. Determined.

  Further, even when the differential pressure measurement value is smaller than the predetermined differential pressure, the determination means 20 generates a clinker on the inner surface of the flue pipe 9B when the temperature measurement value by the thermometer 19 is equal to or lower than the predetermined temperature. It is determined that Therefore, in this embodiment, for example, the clinker adhesion state is the same at the upstream side position and the downstream side position in the flue pipe 9B, and the differential pressure is not large even though the clinker is generated. Even in this case, the occurrence of clinker can be accurately detected. In addition to the above measured differential pressure value, the presence or absence of clinker is determined based on the magnitude of the measured temperature value, so there is no need to consider complicated condition settings for setting the predetermined differential pressure. Becomes simple.

  When the control device 24 receives a signal indicating that the clinker is generated from the determination means 20, the striking device 22 of the removing means 21 moves forward from the standby position and strikes the outer surface of the flue pipe 9B. At the same time, control signals for controlling the respective operations are output to the striking device 22 and the air injection device 23 so that the air injection device 23 injects air. In FIG. 2, the control signal to the striking device 22 is indicated by “A”, and the control signal to the air injection device 23 is indicated by “B”. As a result, an impact is applied to the flue pipe 9B by the striking of the striking device 22, the flue pipe 9B vibrates to cause a crack in the clinker, and the clinker peels from the inner surface of the flue pipe 9B. . Further, the peeled clinker is sent to the downstream side by the air jetted by the air jetting device 23 and is captured and removed by the dust collector 12.

  In the present embodiment, as described above, when the occurrence of the clinker is detected, the clinker is automatically removed by the removing means 21, so that it is not necessary to manually remove the clinker as in the prior art. Efforts to remove clinker during maintenance can be reduced.

  In this embodiment, the determination unit 20 compares the temperature measurement value obtained by the thermometer 19 with the predetermined temperature only when the differential pressure measurement value calculated by the differential pressure measurement unit 15 is smaller than the predetermined differential pressure. When the temperature measurement value is equal to or lower than the predetermined temperature, it is determined that the clinker is generated, but instead, the determination means only determines the magnitude of the temperature measurement value regardless of the magnitude of the differential pressure measurement value. Thus, the presence or absence of clinker may be determined. In such a form, the determination means simply determines that the clinker is generated when the temperature measurement value is equal to or lower than the predetermined temperature. According to such a form, it is not essential to provide the differential pressure measuring means, so that the configuration of the clinker generation detecting / removing device 10 can be simplified.

  In this embodiment, the case where the waste treatment furnace provided with the clinker generation detection / removal device according to the present invention is a waste incinerator, but the waste treatment furnace provided with the clinker generation detection / removal device is For example, a waste gasification melting furnace may be used.

1 Waste incinerator (waste treatment furnace)
9A, 9B Flue piping 10 Clinker generation detection / removal device 15 Differential pressure measurement means 19 Thermometer (temperature measurement means)
20 determining means 21 removing means 22 striking device 23 air injection device 24 control device (control means)

Claims (6)

In the clinker generation detection device for detecting the generation of clinker adhering to the inner surface of the flue pipe for sending the exhaust gas from the waste treatment furnace,
Differential pressure measuring means for measuring the differential pressure between the pressure at the upstream position in the flue pipe and the pressure at the downstream position;
Temperature measuring means for measuring the temperature near the inner surface of the flue pipe,
When the differential pressure measurement value by the differential pressure measurement means is greater than or equal to a predetermined differential pressure, or even if the differential pressure measurement value is smaller than the predetermined differential pressure, the temperature measurement value by the temperature measurement means is not more than a predetermined temperature. Determining means for determining that a clinker has occurred,
A clinker generation detecting device comprising: In the clinker generation detection device for detecting the generation of clinker adhering to the inner surface of the flue pipe for sending the exhaust gas from the waste treatment furnace,
Temperature measuring means for measuring the temperature near the inner surface of the flue pipe,
Determination means for determining that a clinker is generated when a temperature measurement value by the temperature measurement means is equal to or lower than a predetermined temperature;
A clinker generation detecting device comprising: The clinker occurrence detection device according to claim 1 or 2,
It has a striking device for striking the outer surface of the flue pipe and peeling the clinker from the inner surface of the flue pipe, or in addition to the striking device, the clinker is sprayed with air. Removing means for removing the clinker, which also has an air injection device for sending the air to the downstream side;
Control means for controlling the removing means so that the clinker removing operation by the removing means is performed when the judging means of the clinker occurrence detecting device determines that the clinker is generated;
A clinker generation detection / removal device comprising: In the clinker generation detection method for detecting the generation of clinker adhering to the inner surface of the flue pipe for sending exhaust gas from the waste treatment furnace,
A differential pressure measuring step for measuring a differential pressure between a pressure at an upstream position in the flue pipe and a pressure at a downstream position;
A temperature measurement process for measuring the temperature near the inner surface of the flue pipe,
When the differential pressure measurement value in the differential pressure measurement step is greater than or equal to a predetermined differential pressure, or even if the differential pressure measurement value is smaller than the predetermined differential pressure, the temperature measurement value in the temperature measurement step is not more than a predetermined temperature. A determination step for determining that a clinker has occurred,
A clinker occurrence detection method comprising: In the clinker generation detection method for detecting the generation of clinker adhering to the inner surface of the flue pipe for sending exhaust gas from the waste treatment furnace,
A temperature measurement process for measuring the temperature near the inner surface of the flue pipe,
A determination step of determining that the clinker is generated when the temperature measurement value in the temperature measurement step is equal to or lower than a predetermined temperature;
A clinker occurrence detection method comprising: Each step of the clinker generation detection method according to claim 5 or 6,
When it is determined that the clinker is generated in the determination step of the clinker generation detection method, a striking step of striking the outer surface of the flue pipe and peeling the clinker from the inner surface of the flue pipe, or In addition to the striking step, a removal step of removing the clinker, which also performs an air injection step of injecting air to the peeled clinker and sending the clinker downstream,
A clinker generation detection / removal method comprising:

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