JPH08141454A - Spray nozzle moving device - Google Patents

Abstract

PURPOSE: To pull out a nozzle to the outside with the nozzle being attached to a tubular body in a spray nozzle moving device by forming a seal material consisting of a flame-retardant cloth material between a nozzle tip and a fluid introducing part to isolate each of them. CONSTITUTION: In a spray nozzle moving device 10 in which a nozzle tip 12 is connected to a gas feeding member 16 and a liquid feeding member 18, and which is provided with a tubular body 14 in which a communicative hole is formed inside a mixing part and the nozzle tip 12, between a driving part 32 for moving a nozzle and a gas feeding member 16 and/or a liquid feeding member 18, a connecting fitting 20 for eliminating a driving part 32 and the gas feeding member 16 and/or the liquid feeding member 18 is formed. A seal material 42 consisting of a flame-retardant cloth material through which the nozzle tip 12 is passed is formed on the outer periphery of the tubular body 14 so that the gas feeding member 16 and the liquid feeding member 18 and the nozzle tip 12 may be positioned in the rear part and in the front part respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spray nozzle moving device, and in particular, for example, a spray nozzle is located in a refuse incinerator, and a reducing agent spray for the purpose of denitration from the nozzle and furnace combustion temperature control are provided. For spraying water spray or sewage spray for oxidative treatment of sewage in a mist state, and for spray nozzle to protect the nozzle when spraying is stopped.
The present invention relates to a spray nozzle moving device that retracts into a furnace refractory (low temperature range) or advances to a predetermined furnace position during spraying.

[0002]

2. Description of the Related Art Currently, for example, in a refuse incinerator, harmful gas containing a large amount of nitrogen oxides and hydrogen chloride is generated due to the peculiarity of the fuel (mainly general household waste).
Nitrogen oxides in harmful gas are reduced (denitration) by spraying reducing agent in the furnace. However, since the spray nozzle may fall off in the incinerator due to the hot corrosive gas atmosphere in the furnace, the nozzle is pulled out from the incinerator at least once a month to check the condition of the nozzle. Are doing If the inspection is neglected and the nozzle is left unattended, the particle size of the mist sprayed from the nozzle becomes large and damages the wall of the furnace.

A spray nozzle used in such an incinerator, for example, as shown in FIG. 7, is a nozzle 104 consisting of a connecting pipe 102 having a nozzle tip 100 attached to its tip, and an air supply member 106 for supplying air. And a urea water supply member 108 for supplying urea water,
The connection pipe 102 connects the air supply member 106 and the urea water supply member 108, and has a communication hole formed therein for communicating with the air supply member 106 and the urea water supply member 108. The connecting pipe 102 is attached to a pedestal 112 provided with a seal member 110 for blocking the above so as to be inserted into a through hole 114 formed in the seal member 111. The nozzle 104 is configured to be movable back and forth in the incinerator by the connecting pin 118 that connects the rod of the cylinder 116 and the connecting pipe 102.

[0004]

In this conventional urea water spray nozzle device, the through hole of the seal member 110 is
The nozzle tip 100 is formed to have a diameter smaller than that of the nozzle tip 100 so that the diameter cannot be changed.
When inspecting the above, the nozzle tip 100 is not pulled out from the seal member 110 and can be inspected outside the furnace. Therefore, the handle 120 is rotated together with the seal member 110 while the nozzle tip 100 is attached to the tip of the connecting pipe 102 to remove the entire seal member 110 from the fixed portion, and the connecting pin 118 for connecting with the rod of the cylinder 116 is removed to seal. Member 110
At the same time, the connecting pipe 102 must be pulled out from the furnace and the nozzle tip 100 must be inspected.

For this reason, the handle 120 is rotated and the sealing member 1 is provided around the pipe body 102 every inspection once a month.
In order to pull out and inspect the furnace with 10 inserted,
It took time and labor for inspection work.

Therefore, a main object of the present invention is to provide a spray nozzle moving device which can be pulled out to the outside with the nozzle attached to the tube relatively easily.

[0007]

A spray nozzle moving device according to a first aspect of the present invention is a spray nozzle moving device that includes a fluid introducing portion and a nozzle that is connected to the fluid introducing portion and sprays fluid. Between the drive unit for moving the nozzle forward and backward, and the nozzle, a connector for separating the nozzle and the drive unit is formed, the nozzle tip of the nozzle is located in the front part, and the fluid introduction part is located in the rear part. Between the nozzle tip and the fluid introduction part, a sealing material made of a flame-retardant cloth material through which the nozzle tip passes is formed around the nozzle tube body, and the sealing material blocks the front part and the rear part. The spray nozzle moving device is formed.

A spray nozzle moving device according to a second aspect of the present invention comprises a gas supply member and a liquid supply member which constitute a fluid introducing portion,
Nozzle tip is formed at its tip, is connected to the gas supply member and the liquid supply member, the mixing portion of the fluid introduction portion and a spray nozzle provided with a tube body in which a communication hole communicating with the nozzle tip is formed. In the moving device, a connecting member that separates the drive unit from the gas supply member and / or the liquid supply member is formed between the drive unit that moves the nozzle and the gas supply member and / or the liquid supply member. The supply member and the liquid supply member are located in the rear part, so that the nozzle tip is located in the front part, a seal material made of a flame-retardant cloth material through which the nozzle tip passes is formed on the outer periphery of the pipe body,
The spray nozzle moving device is formed so as to block the front part and the rear part by a sealing material.

According to another aspect of the spray nozzle moving device of the present invention, a gas supply member for supplying gas, a liquid supply member for supplying liquid, and a nozzle tip are formed at the tip of the gas supply member and connected to the gas supply member and the liquid supply member. A moving device of a spray nozzle including a gas supply port of a gas supply member, a liquid supply port of a liquid supply member, and a tube body in which a communication hole that communicates with a nozzle tip is formed. A connecting tool for separating the gas supply member and the liquid supply member is formed between the gas supply member and the liquid supply member connected to the driving unit, the gas supply member and the liquid supply member are located at the rear portion, and the nozzle is provided. A sealing material made of a flame-retardant cloth material through which the nozzle tip passes is formed on the outer periphery of the pipe body so that the tip is located in the front portion, and the sealing material is formed to block the front portion and the rear portion. A spray nozzle moving device.

The spray nozzle moving device according to claim 4 is a spray nozzle moving device according to claim 1, wherein the nozzles, including the gas supply member and the liquid supply member, are fixed to a pedestal for fixing to other parts. Is.

In the spray nozzle moving device according to a fifth aspect of the present invention, a moving device, which is a driving unit for moving the nozzle, the gas supply member, and the liquid supply member forward and backward, is fixed to the gantry, and a tube body is provided in the operating unit of the moving device. The spray nozzle moving device according to any one of claims 1 to 4, which is connected.

In the spray nozzle moving device of the sixth aspect, the sealing material is fixed to a vertical portion formed in the front part of the frame, and the vertical portion has a through hole formed therein. The through hole of the installation portion is formed so as to be located on a straight line.
Or the spray nozzle moving device described in any one of 5 above.

A spray nozzle moving device according to a seventh aspect is the spray nozzle moving device according to any one of the first to sixth aspects, wherein the sealing material is made of heat-resistant nylon.

The spray nozzle moving device according to claim 8 is the spray nozzle moving device according to any one of claims 1 to 7, wherein the seal member has a notch connected to the through hole in the radial direction.

A spray nozzle moving device according to a ninth aspect is the spray nozzle moving device according to any one of the first to eighth aspects, in which the connecting member is a coupler.

In the spray nozzle moving device of the tenth aspect, the compressed air is sent from the gas supply port of the gas supply member, and the urea water is sent from the liquid supply port of the liquid supply member. Is the spray nozzle moving device according to any one of claims 1 to 9, which is fixed to the incinerator so as to be located in the incinerator.

[0017]

According to the first aspect of the present invention, the fluid introducing portion and the driving portion are separated from each other by the connector between the fluid introducing portion and the driving portion. Further, since the seal material formed on the outer circumference of the nozzle tube body is made of a flame-retardant cloth material through which the nozzle tip passes, the seal material can be pulled out from the seal material with the nozzle tip attached to the tube body.

According to the second aspect of the present invention, the drive unit and the gas supply member and / or the liquid supply member are separated from each other by the connecting member between the drive unit for moving the nozzle and the gas supply member and / or the liquid supply member. Let them be separated. Also,
Since the sealing material formed on the outer periphery of the tubular body is made of a flame-retardant cloth material through which the nozzle tip passes, it can be pulled out from the sealing material with the nozzle tip attached to the tubular body.

According to the third aspect of the invention, the gas supply member and the liquid supply member are separated and separated by the connector between the gas supply member and the liquid supply member that is connected to the drive unit that drives the nozzle. . Further, since the sealing material formed on the outer periphery of the tubular body is made of a flame-retardant cloth material through which the nozzle tip passes, it can be pulled out from the sealing material with the nozzle tip attached to the tubular body.

According to the fourth aspect of the present invention, the tube body including the nozzle, the gas supply member and the liquid supply member is fixed on the mount.

According to the invention of claim 5, the tube body is moved forward and backward together with the nozzle tip, the gas supply member and the liquid supply member by the moving device.

According to the sixth aspect of the present invention, the pipe body is inserted together with the nozzle tip through the through hole of the seal material and the through hole of the vertical portion of the front part of the gantry.

According to the seventh aspect of the present invention, the sealing material made of heat-resistant nylon completely seals the front and rear portions of the sealing material.

According to the invention of claim 8, the nozzle tip, which is larger than the through hole formed in the sealing material, is also pulled out from the sealing material while being fixed to the tubular body by the notch which is connected to the through hole of the sealing material.

According to the ninth aspect of the present invention, the gas supply member and the liquid supply member are separated from each other by unfitting the connecting portion made of the coupler.

According to the tenth aspect of the present invention, the compressed air sent from the gas supply member and the urea water sent from the liquid supply member are mixed and sprayed from the nozzle tip to protect the wall in the incinerator from corrosion. A film is formed.

[0027]

According to the first aspect of the present invention, if the connecting member for separating the fluid introducing portion and the driving portion is detached, it becomes relatively compact and easy to handle, and the tip of the tubular body is made. The nozzle can be pulled out to the outside while the sealing material is fixed, for example, outside the incinerator, with the nozzle tip attached to. Therefore, the inspection of the nozzle becomes extremely easy.

According to the second aspect of the present invention, if the connecting member formed between the drive unit for moving the nozzle and the gas supply member and / or the liquid supply member is detached, it becomes relatively compact. It is easy to handle because it can be done, and moreover, with the nozzle tip attached to the tip of the tube,
The sealing material can be pulled out to the outside while being fixed to the outside, for example, the outside of the incinerator. Therefore, the inspection of the nozzle becomes extremely easy.

According to the third aspect of the present invention, if the connecting member formed between the gas supply member and the liquid supply member is detached, it becomes relatively compact and easy to handle. With the nozzle tip attached to the tip of the body, the sealing material can be pulled out to the outside while being fixed to the outside, for example, the outside of the incinerator. Therefore,
Inspecting the nozzle is extremely easy.

According to the invention of claim 4, the tube body is fixed together with the gantry, for example, outside the incinerator together with the nozzle tip, the gas supply member, and the liquid supply member, and only the nozzle is located in front of the sealing material. Can be located at.

According to the invention of claim 5, the tube body can be moved forward and backward together with the nozzle tip, the gas supply member and the liquid supply member by the moving device, and the spraying position of the nozzle can be appropriately changed.

According to the sixth aspect of the present invention, the nozzle tip can be inserted forward while being attached to the tip of the tubular body through the through hole of the vertical portion formed in the front part of the frame and the through hole of the sealing material. Since it is possible, it is possible to insert a straight tubular body very easily.

According to the invention of claim 7, since the sealing material is made of heat-resistant nylon, the outside and the inside can be completely sealed.

According to the eighth aspect of the present invention, since the notch connecting to the through hole is formed in the radial direction in the sealing material,
With the nozzle tip attached to the tip of the tubular body, the through hole can be pushed wider and the nozzle tip can be pulled out to the outside through the sealing material.

According to the ninth aspect of the invention, since the connecting member is composed of the coupler, the gas supply member and the liquid supply member can be easily separated by fitting and detaching the coupler, and the nozzle can be inspected as a more compact shape. It can be carried out.

According to the tenth aspect of the invention, since the compressed air is sent from the gas supply member and the urea water is sent from the liquid supply member, the compressed air and the urea water are mixed from the nozzle. The generated mist is blown out and a corrosion-resistant film is formed on the wall surface inside the incinerator.

The above-mentioned objects, other objects, features and advantages of the present invention will become more apparent from the following detailed description of the embodiments with reference to the drawings.

[0038]

1 is a front view solution view of a urea water spray nozzle moving device according to an embodiment of the present invention, and FIG.
FIG. 4 is a bottom schematic view of the illustrated example, FIG. 3 is a schematic view of a main part of the illustrated example of FIG. 1, and FIG. 4 is an enlarged schematic view of the main part of the illustrated example of FIG. 1.

The spray nozzle moving device 10 includes a reducing agent spray for the purpose of denitration, a water spray for controlling the combustion temperature of the furnace, or a sewage spray for evaporative oxidation of waste water, etc. Is a device for spraying mist, and is located in the furnace of an incinerator in a high temperature corrosive gas atmosphere, and a nozzle tip 12 capable of spraying from its tip and a connection for attaching the nozzle tip 12 to the tip A nozzle provided with a pipe body 14 made of a pipe, a liquid supply member 16 attached to the rear part of the pipe body 14 for supplying urea water, which is a fluid introduction part for introducing a fluid, and the liquid supply member 16.
Between the liquid supply member 16 and the gas supply member 18, which is located rearward and is connected to the pipe body 14 to supply air, the liquid supply member 16 and the gas supply member 18 are separated from each other. Connection coupler 20 which is a connection tool
And The liquid supply member 16 includes the liquid supply pipe joint 22 and forms the liquid supply member 16.
A liquid supply coupler 26 is attached to the tip of the liquid supply coupler 26, and is formed so as to be detachably connected to the liquid supply coupler 26 and the liquid supply pipe joint 22. In addition, the gas supply member 18
Includes a gas supply pipe joint 28, a gas supply coupler 30 constituting the gas supply member 18 is connected to the tip of the hose 32, and the gas supply coupler 30 is detachably connected to the gas supply pipe joint 28.

The liquid supply member 16 is connected to a pump (not shown) via a hose 24 so as to feed urea water. The gas supply member 18 is connected to a compressor (not shown) via a hose 32 so that compressed air can be fed.

Liquid supply pipe joint 22 and gas supply pipe joint 28
Is connected via a connection coupler 20, the liquid supply pipe joint 22 is connected to the rear end of the pipe body 14, and the inside of the main body of the liquid supply pipe joint 22 constitutes a mixing section for mixing gas and liquid. The air sent from the gas supply pipe joint 28 and the urea water sent into the liquid supply pipe joint 22 are mixed.

The rear end of the gas supply pipe joint 28 is connected to the front end of the connecting member 31, and the connecting member 31 drives the tube 14, the liquid supply member 16, and the gas supply member 18 together to move forward and backward at the other end. The air cylinder 32 is fixed to an operating portion of an air cylinder 32 that is a moving device that constitutes a unit, and the air cylinder 32 is fixed to a frame 34.

The air cylinder 32 is provided with an electromagnetic valve 36 for switching the air for operating the air cylinder, and the operation of the electromagnetic valve 36 causes the operating portion of the air cylinder 32 to move forward and backward.

The pedestal 34 is for fixing the spray nozzle moving device 10 to the outside of the incinerator, for example, and is provided on the side opposite to the part where the air cylinder 32 is fixed, that is, at the front part thereof, a vertically extending part. 38 is projected and fixed toward the tube body 14 side.

The vertically extending portion 38 is provided with a through hole 40 which surrounds the periphery of the tubular body 14, and the through hole 40 of the vertically extending portion 38 is provided.
A seal member 42 made of a flame-retardant cloth material such as heat-resistant nylon is fixed to the front part of the above, that is, inside the incinerator in a high temperature corrosive gas atmosphere.

The seal material 42 is formed in the through hole 40 of the vertically extending portion 38.
It is sandwiched between annular seal member retainers 48 having fixing holes 46 formed corresponding to the fixing holes 44 formed at a plurality of locations around the
The seal member retainer 48 is fixed to the vertically extending portion 38 by screwing the bolt 50 from the front portion into the fixing hole 44. A through hole 42a is formed in the center of the sealing material 42, and a notch 4 connected to the through hole 42a.
2b is formed in the radial direction so that the tube body 14 and the nozzle tip 12 can be easily taken in and out.

Further, around the through hole 40 of the vertically extending portion 38, the cylindrical body 5 having a diameter of a size surrounding the sealing material 42 is provided.
2 is fixed to the vertically extending portion 38 at a flange portion 54 formed on the outer periphery thereafter.

The tubular body 52 is constructed so as to surround and protect the pipe body 14 from the vertically extending portion 38 to the vicinity of the nozzle tip 12, and a joint packing 56 is provided between the tubular body 52 and the vertically extending portion 38.
And is tightly fixed to the vertical portion 38 with the interposition of. Further, a guide 58 is provided so as to project rearward at the rear portion of the vertically extending portion 38, that is, on the side opposite to the portion where the cylindrical body 52 is fixed. The guide 58 is fixed to the rear portion of the vertically extending portion 38 so as to sandwich the liquid supply pipe joint 22 from both sides, and as the opening 58a extends from the rear portion to the front portion,
The width is formed so as to be gradually narrowed, and the liquid supply member 16 is formed so as not to tilt to the left and right. Furthermore, toward the center of the through hole 40 at the rear part of the vertical portion 38,
The support portion 60 of the tube body 14 is provided so as to project, and is formed so as to support the lower portion of the tube body 14 and not to hang down.

In order to inspect the nozzle tip 12, the spray nozzle moving device 10 thus constructed first operates the air cylinder 32 to retract the nozzle tip 12, and then the connecting coupler 20 is removed. , Gas supply fitting 2
8 and separates the tubular body 14 from the through hole 42a of the sealing material 42.
You can pull it out more and inspect it.

After the nozzle tip 12 is inspected, the nozzle tip 12 side may be inserted into the through hole 42a of the sealing material 42 again, and the connecting coupler 20 may be connected again and fixed at an appropriate position.

The present invention is not limited to the above embodiment and can be variously modified. For example, the fluid introducing portion may be either a gas supply member or a liquid supply member, and may be composed of only the liquid supply member or only the gas supply member.
The drive unit is not limited to the air cylinder, but may be, for example, a hydraulic cylinder or other moving device.

[Brief description of drawings]

FIG. 1 is a front view solution view of a spray nozzle moving device according to an embodiment of the present invention.

FIG. 2 is a bottom view solution view of the example shown in FIG.

3 is an illustrative view of a main part of the example shown in FIG. 1. FIG.

FIG. 4 is an illustrative view in which an essential part of the example shown in FIG. 1 is enlarged.

5 is a cross-sectional view showing the vicinity of the sealing material in the example shown in FIG.

6 is an illustrative view of the vicinity of the sealing material in the example shown in FIG. 1 viewed from the front.

FIG. 7A is a schematic front view of a conventional spray nozzle moving device, and FIG. 7B is a schematic view of a main part of the conventional spray nozzle moving device.

[Explanation of symbols]

 10 Spray Nozzle Moving Device 12 Nozzle Tip 14 Tubular Body 16 Liquid Supply Member 18 Gas Supply Member 20 Connection Coupler 22 Liquid Supply Pipe Joint 24 Hose 26 Liquid Supply Coupler 28 Gas Supply Pipe Joint 30 Gas Supply Coupler 31 Connection Member 32 Hose 32 Air Cylinder 34 Mounting base 36 Solenoid valve 38 Vertically extending part 40 Through hole 42 Sealing material 44 Fixing hole 46 Fixing hole 48 Sealing material holding 50 Bolt 52 Cylindrical body 54 Flange 56 Fitting packing 58 Guide 60 Supporting part

Claims (10)

[Claims] 1. A spray nozzle moving device including a fluid introduction part and a nozzle connected to the fluid introduction part for spraying a fluid, the drive part being connected to the nozzle to move the nozzle forward and backward. Between the nozzle tip and the fluid introducing part, a connecting tool for separating the nozzle and the driving part is formed, the nozzle tip of the nozzle is located in the front part, and the fluid introducing part is located in the rear part. A spray nozzle moving device, wherein a sealing material made of a flame-retardant cloth material through which a nozzle tip passes is formed around a nozzle tube body, and the sealing material is formed so as to block a front portion and a rear portion. 2. A gas supply member and a liquid supply member that constitute a fluid introduction part, and the nozzle tip formed at the tip thereof, connected to the gas supply member and the liquid supply member, and mixing of the fluid introduction part. And a gas supply member and / or the liquid supply member, which is a spray nozzle moving device including a tubular body having a communication hole communicating with the nozzle tip and a communication hole formed therein. And a connecting member that separates the drive unit and the gas supply member and / or the liquid supply member from each other, the gas supply member and the liquid supply member are located at a rear portion, and the nozzle tip is at a front portion. A sealing material made of a flame-retardant cloth material through which the nozzle tip passes is formed on the outer periphery of the pipe body so that the front portion and the rear portion are blocked by the sealing material. A spray nozzle moving device made. 3. A gas supply member for supplying a gas, a liquid supply member for supplying a liquid, and a nozzle tip formed at its tip, connected to the gas supply member and the liquid supply member, A moving device for a spray nozzle including a gas supply port, a liquid supply port of the liquid supply member, and a tube body having a communication hole communicating with the nozzle tip formed therein, and a drive unit for moving the nozzle. Between the connected gas supply member and the liquid supply member, a connector for separating the gas supply member and the liquid supply member is formed, the gas supply member and the liquid supply member are located at the rear, A sealing material made of a flame-retardant cloth material through which the nozzle tip passes is formed on the outer periphery of the tubular body so that the nozzle tip is located at the front portion, and the sealing material blocks the front portion and the rear portion. A spray nozzle moving device formed as described above. 4. The spray nozzle moving device according to claim 1, wherein the nozzle, including the gas supply member and the liquid supply member, is fixed to a pedestal for fixing to other parts. 5. A mobile device, which is a drive unit for moving the nozzle, the gas supply member, and the liquid supply member together forward and backward, is fixed to the gantry, and the tubular body is connected to an operating unit of the mobile device. The spray nozzle moving device according to claim 1. 6. The sealing material is fixed to a vertical portion formed on a front portion of the frame, and a through hole is formed in the vertical portion, and the through hole of the sealing material and the vertical portion are formed. The spray nozzle moving device according to claim 4, wherein the through hole is formed so as to be located on a straight line. 7. The spray nozzle moving device according to claim 1, wherein the seal material is made of heat-resistant nylon. 8. The spray nozzle moving device according to claim 1, wherein the seal member has a notch connected to the through hole in a radial direction. 9. The spray nozzle moving device according to claim 1, wherein the connector is a coupler. 10. A compressed air is sent from a gas supply port of the gas supply member, and a urea water is sent from a liquid supply port of the liquid supply member, and the nozzle tip is formed in an incinerator. The spray nozzle moving device according to any one of claims 1 to 9, which is fixed to the incinerator so as to be located at.