JP2002204987A - Dispersion jet device for sludge/cake-like substance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize a simplification of the structure of a device body 1, to certainly disperse and jet a sludge/cake-like substance even if the feed amount of the sludge/cake-like substance is increased and to prevent such a situation that the dispersion and the jet become impossible by a closing of a jet port 18 caused by the deposition of the sludge/cake-like substance. SOLUTION: The sludge/cake-like substance and a pressure fluid to be dispersed and jetted made possible be fed to the inside of the device body 1 in which a jet port 18 is provided at a nozzle-like tip end. The device body 1 is formed in a cylindrical shape with a bottom and a cap body 13 is provided on an opening part 8 able to be in close contact while it is urged toward the inner side of the device body 1. A jet port 18 is partitioned by a notch part 9 formed in close contact parts 13A, 8A of this cap body 13 and the opening part 8.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for dispersing a sludge cake-like substance, for example, when a sludge cake-like substance such as sludge is supplied to a waste incinerator for incineration. Sludge for spouting and supplying
The present invention relates to a device for dispersing and ejecting a cake-like substance.

[0002]

2. Description of the Related Art An apparatus of this type for dispersing and ejecting sludge cake-like substances is described in Japanese Patent Application Laid-Open No. 9-608 for supplying sludge to a waste incinerator as described above.
Japanese Unexamined Patent Publication No. 39 and Japanese Unexamined Patent Publication No. 11-287425 are known. Among them, in the former, the tip between the inner pipe and the outer pipe of the apparatus main body having the double pipe structure is sealed by a conical member provided with a spout, and the tip is supplied through the inside of the inner pipe to be sealed. A method is proposed in which sludge discharged from a discharge port defined in the above is dispersed into the incinerator while being dispersed by a pressurized fluid (steam) discharged from the discharge port through an inner pipe and an outer pipe. ing. In the latter case, the tip of the inner tube and the tip between the outer tube and the middle tube of the apparatus main body having a triple tube structure are also sealed with a member provided with a spout, so that the inner tube and the middle tube are separated. Pressurized fluid that is supplied through the inner space and discharged from an annularly defined discharge port at the tip thereof, and is ejected from the outlet through the inner pipe, the outer pipe, and the middle pipe, respectively. There has been proposed a device which is dispersed and ejected by (compressed gas such as compressed air or steam).

[0003]

However, in these conventional dispersion jetting apparatuses, firstly, the sludge supplied to the apparatus main body by a sludge supplying means such as a screw pump or a screw feeder is directly supplied to the inner pipe or the inner pipe. The sludge is discharged from the discharge port at the tip of the apparatus main body through the space between the inner pipe and the middle pipe, and the sludge is finely dispersed by spraying the pressurized fluid jetted from the jet port formed at the tip of the apparatus main body. To increase the amount of sludge that is supplied to the main body of the apparatus to increase the amount of incineration of the sludge and is discharged from the discharge port. Even if the ejection pressure of the fluid is increased, or even if a triple pipe structure or a multiple pipe structure is adopted, a large amount of sludge discharged Be distributed ejected evenly miniaturized I becomes difficult. For this reason, it is inevitable that the sludge that has not been dispersed falls into a block and falls directly below the tip of the device body in the incinerator, which hinders efficient incineration and also makes the load on the incinerator non-uniform. .

[0004] In particular, in such a dispersing device for supplying sludge as a sludge cake-like substance to a waste incinerator, such a waste incinerator is used to prevent the generation of dioxins. Since it is necessary to operate at a high temperature of not less than ° C., the device body needs to have heat resistance and a simple structure. However,
In the case of the apparatus having a multi-tube structure as in the above-mentioned conventional distributed ejection apparatus, there is a problem that the structure of the apparatus body is complicated, costly and troubles such as failures are apt to occur. In the case of supplying sludge to the waste incinerator as described above, if such a failure occurs in the distributed ejection device, the operation of the incinerator may need to be temporarily stopped and repaired.

[0005] Further, in such an apparatus for dispersing and ejecting a sludge cake-like substance to such an incinerator, the main body of the apparatus is disposed with its tip facing the incinerator exposed to a high temperature as described above. Therefore, there is a problem that sludge and cake-like substances such as sludge discharged from the front end of the apparatus main body seize due to high temperature and block the front end of the main body of the apparatus. However, in this regard, for example, Japanese Patent Application Laid-Open No. 9-608 described above.
In the device described in Japanese Patent No. 39, a scraper is provided in the inner pipe of the apparatus main body to which the sludge is supplied, thereby removing the seized sludge and preventing the discharge port from being blocked. The only thing that can be removed by the scraper is the baked sludge that blocks the sludge discharge port at the tip of the inner pipe.For example, the sludge scattered during the dispersion jetting adheres to the conical member between the inner pipe and the outer pipe. When the spout of the pressurized fluid formed in this conical member is closed by baking, there is no way to remove it while continuing to supply the sludge, and the dispersing jet of the sludge by the pressurized fluid itself Since it becomes impossible, the operation of once again stopping the incinerator, removing the apparatus main body, and removing the burn-in sludge that closes the spout is inevitable.

The present invention has been made under such a background, and firstly, while simplifying the structure of the apparatus main body,
Even if the supply amount of the sludge cake-like substance is increased, an object of the present invention is to provide a dispersion-spouting apparatus of a sludge cake-like substance capable of reliably dispersing and ejecting the same.
In addition, secondly, even if the dispersion ejection device is for supplying sludge to the incinerator as described above,
Another object of the present invention is to provide a device for dispersing and ejecting a sludge cake-like substance, which can prevent a situation in which the dispersion and ejection of the sludge cake-like substance becomes impossible due to blockage due to burning. .

[0007]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems and to achieve the first object, the present invention relates to a method of manufacturing an image forming apparatus having a nozzle-shaped tip provided with an ejection port. ,
A sludge cake-like substance and a pressurized fluid that are dispersed and ejected can be supplied. That is, in the dispersion ejection device having such a configuration, the sludge cake-like substance discharged from the ejection port at the tip of the apparatus body is ejected from the ejection port around the ejection port as in the above-described conventional dispersion ejection apparatus. Rather than spraying and spraying a pressurized fluid, the sludge cake-like substance supplied into the apparatus main body is converted into a nozzle-like tip of the apparatus main body by the pressure of the pressurized fluid supplied into the same apparatus main body. Since it is dispersed while being ejected from the ejection port, there is no need for a complicated multi-tube structure,
Moreover, since the sludge cake-like substance and the pressurized fluid are ejected from the same outlet, even if the supply amount of the sludge cake-like substance increases, the supply amount and the supply pressure of the pressurized fluid are adjusted accordingly. By adjusting, this sludge
The cake-like substance can be reliably dispersed and ejected.

In the case where the sludge cake-like substance is dispersed and ejected by the pressure of the pressurized fluid as described above, the above-described ejection port is opened upward to spread the sludge cake-like substance over a wider area. It is possible to uniformly disperse and squirt. That is, as in the prior art, only the sludge cake-like substance is discharged from the discharge port of the apparatus body having a multi-tube structure, and the pressurized fluid spouted from the discharge port around the discharge port disperses and discharges this substance. If it is turned upward, the discharged sludge cake-like substance drips down and cannot be uniformly dispersed.
Japanese Patent Application Laid-Open No. 287425/1990, the opening must be vertically downward, or open obliquely downward as described in Japanese Patent Application Laid-Open No. 9-60839, so that the sludge / cake-like substance can be dispersed and ejected. Is inevitably limited. However, when the sludge cake-like substance is ejected by the pressure of the pressurized fluid as in the present invention, the sludge cake-like substance can be spouted not only downward but also vertically upward or obliquely upward. Uniform dispersion jetting is possible, so that the sludge cake-like substance can be more uniformly dispersed and jetted over a wide area in a parabolic shape projecting upward.

On the other hand, in order to achieve the above-mentioned second object, the present invention relates to a dispersion jetting device having the above-mentioned structure, wherein the device main body is formed in a cylindrical shape having a bottom, and an opening at a tip end thereof is provided. The lid is urged toward the inside of the apparatus main body and provided so as to be able to be in close contact with the opening, and the spout is defined by a notch formed in a contact portion between the lid and the opening. I do. Therefore, by providing such a lid, in the present invention, for example, the dispersion ejection device is for supplying sludge to the incinerator as described above,
If the sludge burns on the spout and clogs it,
The internal pressure in the apparatus main body rises, and the lid urged inward of the apparatus main body is pushed outward, whereby the lid is defined by a notch formed in a close contact portion between the lid and the opening of the apparatus main body. Of the above-mentioned spouts, the edge on the lid side also shifts outward and the spout is divided, so that the sludge seized on the spouts can be broken at the apparatus main body side and the lid side, and the apparatus main body can be broken. With the opening of the opening, the pressurized fluid and the sludge pressurized in the apparatus main body are ejected at a stretch, so that the burn-off sludge broken as described above by the pressure can be removed. After the obstruction due to the burning of the sludge is removed in this way, as the sludge and the pressurized fluid are blown out at once and the inside of the apparatus body is depressurized,
When the lid comes into close contact with the opening by the bias, an outlet is defined by the notch in the contact portion, and normal dispersion ejection is performed.

Here, in order to urge the lid toward the inside of the apparatus main body so as to be able to adhere to the opening at the front end of the apparatus main body, a shaft is inserted into the apparatus main body from the bottom to the opening. The body may be inserted so as to be able to advance and retreat, and the shaft may be urged toward the bottom side by an urging means, and the lid may be provided at the tip of the shaft. It is urged toward the rear end side of the apparatus main body, that is, inside the apparatus main body by the urging means via the shaft, and is brought into close contact with the opening. Further, in this case, an insertion hole through which the shaft is inserted is formed at the bottom of the apparatus main body, and the sludge cake-like substance and the pressurized fluid supplied into the apparatus main body are supplied to the insertion hole. Since there is a risk of leakage from the space between the shaft and the shaft, a sealing chamber is provided at the rear end side of the device body so as to surround the insertion hole at the bottom where the shaft is inserted. It is desirable that the fluid can be supplied and that the pressure of the purge fluid prevents the sludge / cake-like substance from leaking out.

Further, when the lid is urged through the shaft, the rear end of the shaft protruding from the bottom toward the rear is biased toward the rear end of the apparatus body. By providing a driving means for pushing out the distal end side against the means, the lid can be forcibly pushed out to the distal end side, that is, the outside of the apparatus main body via the shaft body by this driving means, and the lid can be made to protrude. It is possible to remove sludge cake-like substances such as baked sludge before dispersion jetting is affected by the blockage of the spout due to burning. Here, if the apparatus main body is provided with pressure detecting means for detecting the pressure in the apparatus main body, and the driving means can be driven by a detection signal from the pressure detecting means, the blockage starts to occur and the pressure in the apparatus main body becomes Is detected by the pressure detecting means to drive the driving means,
Before the blockage progresses, the cover can be made to protrude to remove seizure sludge and the like. Further, if the driving means can be automatically driven intermittently at a predetermined time interval at a predetermined driving time, it is possible to protrude the lid at regular intervals to prevent blockage, and to further prevent this driving. The means can be driven manually and the lid can be raised and lowered as required.
Of course, two or all of the operations of these driving means may be used in combination.

[0012]

FIG. 1 to FIG. 4 show an embodiment of the present invention. As shown in these drawings, in the present embodiment, the apparatus main body 1 includes a cylindrical casing 2 having a circular cross section orthogonal to its central axis O, and a flange 3 provided on the outer peripheral edge of the rear end of the casing 2. It is composed of a disc-shaped bottom plate 4 which is liquid-tightly and air-tightly fastened, and has a bottomed cylindrical shape.
It is formed in the shape of a tapered nozzle whose diameter decreases as it goes toward the distal end side (the right side in FIGS. 1, 3, and 4) of the apparatus main body 1. On the other hand, the rear end of the casing 2 is formed in a cylindrical shape having a constant diameter, and a pressurized fluid, such as compressed air or steam, is supplied into the apparatus main body 1 at the upper end of the rear end. And a small-diameter tubular pressurized fluid supply unit 5 for pressurizing, and a pressurized pumping or the like to the rear end side (left side in FIGS. 1, 3 and 4) of the upper part of the rear end. A large-diameter tubular sludge / cake-like substance supply unit 6 for supplying sludge / cake-like substances such as sewage sludge into the apparatus main body 1 is further provided below the rear end of the apparatus. During operation, a medium-diameter tubular drain section 7 for diluting sludge cake-like substance in the apparatus main body 1 with washing water and discharging the diluted sludge cake-like substance is provided in a direction perpendicular to the axis O so as to communicate with the inside of the apparatus main body 1. It is joined and attached. In addition, a supply pipe 6A for supplying the above-mentioned washing water and a mounting seat 6B for mounting a pressure gauge described later are provided on the trunk portion of the sludge / cake-like substance supply section 6 among them.

The front end of the casing 2 is formed such that the cross section along the axis O draws a curved line smoothly extending from the rear end and is reduced in diameter in two steps. In the part 8, the end face 8A of the opening 8
That is, the casing 2 has a tapered surface that gradually retreats as the distal end surface moves toward the inner peripheral side, and has an upper edge having a depth from the end surface 8A in a direction perpendicular to the tapered surface formed by the end surface 8A. "U" -shaped notch 9 retracted at a
2 is formed so as to form an arc of a predetermined angle b about the axis O in a cross section orthogonal to the axis O, as shown in FIG. 9A has a taper angle equal to that of the end face 8A, and is also formed in a tapered surface shape that gradually retreats toward the inner peripheral side. Here, the size of the notch 9 is appropriately set according to the size of the apparatus main body 1, the properties and supply amount of the supplied sludge / cake-like substance, or the supply amount (supply pressure) of the pressurized fluid. However, for example, when the sludge cake-like substance is sewage sludge, the depth a is in the range of 10 to 20 mm, and the angle b is 30 to 90 °.
It is desirable to set each within the range.

On the other hand, a through hole 4A is formed in the bottom plate 4 of the apparatus main body 1 on the axis O, and a cylindrical supporter 10 is formed in the bottom plate 4 along the axis O in the through hole 4A. The supporter 10 is mounted vertically so as to extend toward the front end side in the apparatus main body 1, and the front end of the supporter 10 is disposed slightly closer to the front end side than the pressurized fluid supply unit 5 in the axis O direction. The rear end is opened at the rear end surface of the bottom plate 4, and in this embodiment, the inner peripheral portion of the supporter 10 opened at the rear end surface of the bottom plate 4 is an insertion hole at the bottom of the apparatus main body 1. The supporter 10 and the through hole 4A of the bottom plate 4 are formed.
Are sealed in a liquid-tight and air-tight manner. In addition, between the lower edge of the supporter 10 and the surface of the bottom plate 4 facing the front end side,
A substantially right-angled triangular flat plate-shaped bracket 11 gradually narrowing toward the distal end is provided along a plane extending vertically downward including the axis O, and the supporter 10 is moved along the axis O by the bracket 11. State can be maintained.

A columnar shaft 12 is inserted into the supporter 10 so as to be able to advance and retreat in the direction of the axis O. The rear end of the shaft 12 is a rear end surface of the bottom plate 4, that is, the apparatus body 1. Of the shaft 10 extends to the rear end side, and the tip of the shaft 10 reaches the opening 8 at the forefront of the casing 2 of the apparatus main body 1. Is located at the tip of the device body 1 and
It is mounted so that it is located outside. This lid 13
Is an annular shape centered on the axis O, the outer diameter of which is slightly larger than the outer diameter of the opening 8 at the tip of the apparatus main body 1. After the tip of the body 10 is also inserted in a liquid-tight and air-tight manner, the shaft 10
It is fixed to the tip. Further, a surface facing the rear end side of the lid 13 has a conical surface centered on an axis O heading toward the rear end side toward the inner peripheral side at a taper angle equal to the end surface 8A of the opening 8 of the apparatus main body 1. The contact surface 13A is formed into a shape, and can be in close contact with the end surface 8A of the opening 8.

The rear end of the shaft 12 protruding toward the rear end of the apparatus main body 1 has a male screw 12A at the rear end.
An annular flat flange plate 14 is inserted into the male screw portion 12A, and a double nut 15 is screwed from the rear end side of the flange plate 14A. , The position of the shaft body 12 toward the rear end side is adjustable. Further, a flange plate 16 of the same shape and the same size as the flange plate 14 is inserted into the protruding rear end of the shaft body 12 so as to face the flange plate 14. A coil spring 17 as a biasing means in the present embodiment is interposed in a compressed state around the rear end portion of the shaft body 12 between the shaft body 12 and the shaft body 12 by the force of extension of the coil spring 17. Is always urged to the rear end side via the flange plate 14 and the double nut 15, and the lid 13 at the front end is brought into contact with the end face 8 A of the opening 8 at the front end of the apparatus main body 1 to be in close contact therewith. . A concave groove into which the coil spring 17 can be fitted is formed on the outer peripheral side of the surfaces of the flange plates 14 and 16 facing each other.

Thus, on the outer periphery of the distal end portion of the apparatus main body 1, the close contact portion between the lid 13 and the opening 8, the close contact surface between the notch 9 and the lid 13 located in the notch 9 are provided. 13A, a rectangular opening having a width a and a range b is defined, and this opening is used as the spout 18 for the sludge cake-like substance in the present embodiment. Here, in the present embodiment, the notch 9 is formed at the upper edge of the opening 8, and the end face 8A and the contact surface 13A of the lid 13 facing the same face toward the inner peripheral side. The jet port 18 has a tapered surface that recedes toward the rear end.
Is opened obliquely upward toward the outer peripheral side of the front end of the apparatus main body 1.

On the other hand, on the rear end face of the bottom plate 4, the rear end of the shaft 12 protruding from the rear end face and the flange plate 1
A cylindrical cover 19 is liquid-tightly and airtightly fastened and attached so as to surround the outer peripheral sides of the coil springs 17 serving as biasing means. At the rear end of the cover 19, an air cylinder 20 as a driving means in the present embodiment is mounted in a liquid-tight and air-tight manner so that the cylinder rod 20A can be coaxial with the axis O and can be protruded and retracted to the front end side. The space defined between the rear end face of the bottom plate 4 and the air cylinder 20 in the cover 19 is defined as a sealed chamber 21 in the present embodiment. A small-diameter tubular purge fluid supply unit 22 for supplying a purge fluid such as compressed air is attached.

A contact plate 24 is attached to the tip of the cylinder rod 20A via a double nut 23 so that its position can be adjusted.
The stroke of the cylinder rod 20A is zero when the cylinder rod 20A is retracted.
When a gap is secured between the double nut 15 at the rear end of the shaft body 12 in a state where the lid 13 is in close contact with the opening 8, and when the cylinder rod 20A is projected, the contact plate 24 is 15, the shaft body 12 is pushed out to the front end side, and the lid 13 at the front end is set to protrude toward the front end from the opening 8 at the front end of the apparatus main body 1. The protrusion amount c (see FIG. 4) when the shaft body 12 is pushed and driven by the air cylinder 20 is in the range of 10 to 50 mm when the sludge cake-like substance is sewage sludge as described above. It is desirable to be inside.

Further, supply means (not shown) for supplying compressed air for driving to the air cylinder 20 includes:
A control device 25 for controlling the supply of the compressed air is provided. First, the control device 25 enables the operator to turn on the switch so that the compressed air can be supplied from the supply means, so that the control device 25 can be operated at any time. Is set so that the air cylinder 20 can be manually driven for an arbitrary time. Second, the control device 25 automatically interlocks with the timer, intermittently at a predetermined time interval, and also for a predetermined driving time. Is driven so that the lid 13 can be made to protrude. When the operator does not manually drive the air cylinder 20, the automatic driving is performed. I have.

On the other hand, the mounting seat 6B provided on the body periphery of the sludge / cake-like substance supply section 6 has a sludge / supply supplied into the apparatus body 1 through the sludge / cake-like substance supply section 6. A pressure gauge 26 that measures the supply pressure of the cake-like substance is attached as a pressure detecting unit in the present embodiment. The pressure gauge 26 is connected to the control device 25, and the control device 25 detects the pressure when the supply pressure becomes equal to or higher than a predetermined pressure value. The air cylinder 20 is set to be able to be automatically driven also by a detection signal generated by the total 26. In this case, when the supply pressure measured by the pressure gauge 26 decreases, a detection signal is sent again from the pressure gauge 26 to the control device 25, whereby the air cylinder 20 is driven in reverse, and The rod 20A is set to retreat.

In the apparatus for dispersing and ejecting sludge cake-like substance thus constructed, for example, the sludge cake-like substance is sewage treatment sludge as described above, which is used to incinerate municipal garbage and industrial waste. In the case of processing by supplying to the furnace, the axis O is substantially horizontal and the apparatus main body 1 is turned sideways, and the injection port 18 is turned upward so that the opening 8 faces the furnace inner wall of the incinerator. It is arranged as follows. In this case, the sewage sludge as the sludge cake-like substance to be dispersed and ejected is supplied from the above-mentioned sludge cake-like substance supply unit 6 by pumping into the apparatus body 1 and from the pressurized fluid supply unit 5. Compressed air is supplied as a pressurized fluid, and the pressure of the compressed air causes the sewage sludge to be dispersed and broken into fine particles from the jet port 18 at the tip of the apparatus body 1 that is tapered to a nozzle shape. The size and direction of the jet port 18, that is, the depth a of the notch 9 and the angle b with respect to the axis O, or the jet angle corresponding to the taper angle of the bottom surface 9A of the notch 9 and the contact surface 13A of the lid 13, Ejected in distribution. In addition,
At this time, the same compressed air as the pressurized fluid is supplied to the sealed chamber 21 as the purge fluid.

Therefore, in the dispersing device having the above-described structure, the sludge cake-like substance supplied into the apparatus main body 1 is dispersed by the pressure of the pressurized fluid supplied into the same apparatus main body 1. Since the gas is ejected, there is no need for a complicated device structure unlike a conventional distributed ejection device having a multi-tube structure, that is, since the device structure is simple, it is inexpensive and troubles such as failures are reduced. Further, according to the above-mentioned dispersing and ejecting apparatus, instead of spraying the dispersing and ejecting by spraying the pressurized fluid to the sludge cake-like substance discharged from the inside of the multi-tube as in the conventional method, the sludge and the sludge are not compressed by the pressure of the pressurized fluid itself. In order to eject the cake-like substance while dispersing it, even if the supply amount of the sludge-cake-like substance, that is, the ejection amount, increases, the supply amount and the supply pressure of the pressurized fluid are adjusted in accordance with the increase. This makes it possible to reliably and uniformly disperse and eject the sludge cake-like substance.For example, when the sludge cake-like substance is sewage treatment sludge as described above, and this is dispersed and ejected to an incinerator for treatment. In this case, it is possible to prevent a situation in which sludge is put into the incinerator in a lump and the load on the incinerator becomes uneven or efficient treatment is hindered.

Further, in the present embodiment, the injection port 18 is provided with respect to the apparatus main body 1 which is oriented horizontally with the axis O substantially horizontal.
A notch 9 formed at the upper edge of the opening 8 at the tip
And the contact surface 13 </ b> A of the lid 13, the opening is opened upward, and the sludge cake-like substance is ejected from such an ejection port 18 by a pressurized fluid, thereby forming the sludge. The cake-like substance is dispersed and ejected while drawing a parabola that is upwardly convex. However, in this regard, in a conventional dispersion jetting apparatus that sprays a pressurized fluid onto a sludge cake-like substance discharged from a multi-tube to disperse the sludge cake-like substance, it is attempted to discharge the sludge cake-like substance upward as described above. The sludge cake-like substance drips down due to its own weight, making it impossible to reliably and uniformly disperse and eject.However, the dispersion ejection of the present embodiment in which the sludge cake-like substance is ejected by the pressure of the pressurized fluid itself. In the device, it is also possible to eject the sludge cake like material upward,
Therefore, by spouting the sludge cake-like substance in a parabolic shape as described above, uniform sludge
The cake-like substance can be dispersed.

Moreover, in the present embodiment, the ejection port 18
The bottom surface 9A of the notch 9 and the contact surface 13A of the lid 13 are tapered toward the rear end of the apparatus main body 1 as going toward the inner peripheral side.
Is opened obliquely upward toward the tip side, so that the sludge cake-like substance can be more uniformly dispersed over a wider area, for example, when sewage sludge is dispersed and ejected to an incinerator, It is possible to disperse the sludge evenly and uniformly in the incinerator and promote efficient treatment thereof. In the present embodiment, in such a case, the apparatus main body 1 is arranged horizontally with the axis O substantially horizontal, but the axis O of the apparatus main body 1 is inclined obliquely upward or obliquely downward as necessary. May be arranged, and in some cases, the axis O may extend in the vertical direction and the tip may be directed downward or upward.

On the other hand, in the present embodiment, the jet port 18 can be brought into close contact with the cutout 9 formed in the opening 8 at the tip of the bottomed cylindrical device body 1 in this manner. And the contact surface 13A of the lid 13
The cover 13 is provided with a coil spring 1 as an urging means via a shaft 12 to which the cover 13 is attached at the tip.
7 urges the rear end side to be in close contact with the opening 8. For this reason, for example, the dispersing and ejecting apparatus disperses and ejects the sewage treatment sludge to the incinerator as described above, and the high heat in the incinerator causes the sludge to seize at the orifice 18 to block the orifice 18. When the spout 18 is clogged with sludge supplied at the tip of the apparatus main body 1, the internal pressure of the apparatus main body 1 is increased by the pressure of the sludge or pressurized fluid supplied into the apparatus main body 1. Rises and eventually exceeds the biasing force of the coil spring 17, and as shown in FIG.
In other words, it is pushed out of the apparatus main body 1 and made to protrude, so that the opening 8 is completely opened.

Accordingly, first, the contact surface 13A of the lid 13 is separated from the notch 9 defining the jet port 18 and the jet port 18 is divided forward and backward to expand. The burnt sludge is also broken and separated into the apparatus body 1 side and the lid 13 side, and at the same time, the sludge and the pressurized fluid in the apparatus body 1 whose internal pressure has risen release the opening 8. As a result, the sewage sludge that has been broken and separated and easily peeled off from the opening 8 can be blown off by the pressure of the released sludge and the pressurized fluid, thereby being reliably removed. . In addition, even when the sludge is clogged in the jet port 18, by opening the opening 8 in this way, the clogged sludge can be discharged and removed by the internal pressure. Further, after the burn-in sludge and the clogged sludge are removed, the internal pressure in the apparatus main body 1 is reduced by opening the opening 8, and the lid 13 is retracted by the urging force of the coil spring 17 to open the opening 13. It comes into close contact with the portion 8 again, returns quickly to the original steady state (the state shown in FIG. 1), and the dispersion and ejection of the sludge from the ejection port 18 is continued.

As described above, in the present embodiment, when the jet port 18 is clogged or clogged, it may be caused from the outside of the apparatus main body 1 due to burning of sludge or the like, or may be caused by clogging of sludge. Even if it is from the inside of the main body 1, the state in which the blockage or clogging has occurred can be quickly resolved and the state can be returned to the original steady state, and the stable dispersion and ejection of the sludge cake-like substance can be maintained. . Therefore, there is no need to stop and remove the incinerator every time the spout is closed due to the burning of sludge as in the past, and it is possible to achieve smooth and efficient sludge treatment. It becomes possible. And this spout 18
The protrusion of the lid 13 at the time of eliminating the blockage or clogging of the device is due to an increase in the internal pressure of the apparatus main body 1 due to the occurrence of the blockage or clogging. The retreat is due to the decrease in the internal pressure due to the elimination of the blockage or clogging, that is, the lid 13 protrudes and retracts in response to the occurrence of the blockage or clogging, and the clogging or clogging is resolved, and It is designed to return to a steady state. For example, as compared with the method described in the above-mentioned Japanese Patent Application Laid-Open No. 9-60839, an operator finds a blockage or blockage and resolves it by operating a handle. It is also possible to reduce labor and labor.

In the present embodiment, the opening 8 and the lid 1
A notch 9 is formed at the upper edge of the end face 8A of the end face 8A and the close contact face 13A, which is a close contact portion with the notch 3, and the notch 9
And the contact surface 13A facing the notch 9 and the ejection port 1
8 is defined, for example, a notch may be formed on the side of the contact surface 13A of the lid 13 so that the ejection port is defined between the cover 13 and the end face 8A. 13
Notches may be formed in both A and the contact surface 13A so that the notches coincide with each other to define the ejection port. Further, in the present embodiment, only one ejection port 18 is provided at the upper edge of the close contact portion so as to open upward when the apparatus main body 1 is arranged sideways with the axis O substantially horizontal. However, depending on the orientation of the apparatus main body 1, a plurality of ejection ports may be provided at the tip of the apparatus main body 1. For example, when the apparatus main body 1 is arranged downward with the axis O substantially along the vertical direction. By providing a plurality of ejection ports at equal intervals in the circumferential direction at the tip of the apparatus main body 1, uniform dispersion and ejection of sludge and cake-like substances can be achieved.

Further, in the present embodiment, when the lid 13 is urged toward the rear end side and provided in the opening 8 at the front end of the apparatus main body 1 so as to be in close contact therewith as described above, the bottom plate 4 serving as the bottom of the apparatus main body 1 is provided. A lid 13 is provided at the end of the shaft 12 and is urged by a coil spring 17 provided on the rear end side of the apparatus main body 1 to be integrated with the shaft 12. The lid 13 is urged toward the rear end to open the opening 8.
It is made to adhere to. Therefore, according to the present embodiment, the urging means such as the coil spring 17 can be disposed on the rear end side of the apparatus main body 1 by urging the lid 13 via the shaft body 12 as described above. Therefore, especially when the sewage sludge is dispersed and ejected to the incinerator as a sludge cake-like substance, the urging means can be arranged outside the incinerator even if the front end of the apparatus main body 1 faces the incinerator. For example, operating the double nut 15 from outside the furnace to adjust the biasing force of the coil spring 17 or preventing a situation in which the biasing means is modulated by high temperature inside the furnace. Can be. Moreover,
In the present embodiment, the shaft body 12 is inserted into the cylindrical supporter 10 supported by the bracket 11 in the apparatus main body 1 and supported so as to be able to advance and retreat, and the apparatus main body 1 is turned sideways as described above. Even if it is arranged, it does not bend or the like.
A can be formed in close contact with the end surface 8A of the opening 8 to form the jet port 18 by the cutout 9.

When the shaft body 12 is inserted from the bottom of the apparatus main body 1 and the lid 13 is attached to the tip of the shaft body 12, the shaft body 12 is inserted through the bottom of the apparatus main body 1. In this embodiment, the supporter 1 is formed in the through hole 4A formed in the bottom plate 4 in this embodiment.
Since the shaft body 12 is inserted through the attachment 0, the inner peripheral portion of the supporter 10 is used as the insertion hole as described above. However, in the dispersion ejection apparatus of the present embodiment in which the sludge cake-like substance and the pressurized fluid are supplied into the apparatus main body 1 and the sludge cake-like substance is dispersed and ejected by the pressure of the pressurized fluid, Device body 1
No matter how the shaft body 12 is inserted into the insertion hole, that is, the inner peripheral portion of the supporter 10, if the shaft body 12 is inserted into the support body 10, the shaft body 12 is required to be able to advance and retreat. Since it is inevitable that a certain gap is formed between the hole 12 and the insertion hole, there is a possibility that the pressurized fluid or the liquid component of the sludge cake-like substance may leak from the gap.

On the other hand, in the present embodiment,
A sealing chamber 21 is formed on the rear end side of the apparatus main body 1 by a cover 19 and an air cylinder 20, and a purge fluid supply unit 22 purges the inside of the sealing chamber 21 with the same compressed air as the pressurized fluid. A fluid can be supplied. Therefore, by purging the inside of the sealed chamber 21 to the same pressure as the inside of the apparatus main body 1 or a pressure slightly higher than the inside of the apparatus main body 1 by this purge fluid, the pressurized fluid from the insertion hole can be supplied. And leakage of sludge and cake-like substances. In particular, when the coil spring 17 is used as the urging means as in the present embodiment, the sludge / cake-like substance leaks out of the insertion hole and corrosion such as rust occurs on the coil spring 17. Then, the shaft 12
This is effective because there is a possibility that hindrance of the cover 13 may be hindered through the interface. Further, if the purge fluid supplied to the sealed chamber 21 is the same fluid as the pressurized fluid as described above, only one fluid supply source is required, which is efficient.

On the other hand, in the present embodiment, the air cylinder 20 which defines the sealed chamber 21 pushes the rear end of the shaft body 12 to the front end side against the urging force of the coil spring 17 so as to drive. That is, the cylinder rod 20A of the air cylinder 20 is protruded to the front end side, the contact plate 24 at the front end is brought into contact with the double nut 15 at the rear end of the shaft 12, and the cylinder rod 20A is further advanced. By doing so, as shown in FIG. 4, the shaft body 12 is pushed out together with the lid body 13 to the distal end side, and the opening 8 at the distal end of the apparatus main body 1 can be forcibly released. For this reason, according to the present embodiment, even when the ejection port 18 is slightly blocked due to clogging or seizure of the sludge cake-like substance, and the lid 13 does not protrude due to an increase in the internal pressure of the apparatus main body 1 in this manner. By forcibly projecting the lid 13 to release the opening 8, it is possible to remove the slight clogging and seizure and prevent the blockage from proceeding, and to prevent the spout 18 from rising until the internal pressure rises. It is possible to prevent the uniform dispersion and ejection of the sludge cake-like substance from being hindered by the blockage. Further, for example, the sludge cake-like substance clogged in the apparatus main body 1 presses the shaft body 12 in the radial direction with respect to the axis O to restrain its advance / retreat, whereby the protrusion of the lid body 13 due to an increase in internal pressure due to the clogging is prevented. Even in the case of being obstructed, the shaft means 12 is strongly pushed out by the driving means to forcibly release the opening 8, so that the clogged sludge / cake-like substance is discharged from the opening 8 to be discharged / removed. And so on.

Here, in the present embodiment, the driving of the shaft 12 by the air cylinder 20 as the driving means is controlled by the control device 25 provided in the supply means for supplying the compressed air to the air cylinder 20. It can be driven by a detection signal from a pressure gauge 26 as pressure detecting means provided in the apparatus main body 1 and can be driven intermittently and automatically at a predetermined time interval and driving time set in advance. Further, it can be driven manually by an operator. For this reason, for example, when the sludge cake-like substance is dispersed and ejected in a normal steady state, the ejection port 1 is periodically intermittently driven by automatic driving.
While clogging and seizure of 8 are removed to prevent the progress of the obstruction, if the obstruction progresses despite that and the internal pressure of the apparatus main body 1 rises, this is detected by the pressure gauge 26,
In response to the detection signal, the air cylinder 20 is automatically driven to remove the clogging and seizure, and in the case of emergency, the opening 8 is manually released as necessary to prevent double and triple blockage. Measures can be taken.

In the present embodiment, the control device 25 enables the manual driving of the air cylinder 20, the intermittent automatic driving, and the driving based on the detection signal from the pressure gauge 26 in combination. However, one or two of these may be employed. However, even if the obstruction is not sufficiently prevented in that case, the internal pressure of the apparatus main body 1 eventually increases, so that the lid 13 projects and the opening 8 is released, which causes the obstruction. Since the clogging and seizure are removed, the stable dispersion and ejection of the sludge cake-like substance is not hindered. Further, in the present embodiment, the air cylinder 20 is used as the driving means. However, it is also possible to use, for example, a hydraulic cylinder or an electric motor in addition to the above, and in some cases, for example, such a cylinder device is provided. Without closing the rear end side of the sealed chamber 21, and inserting a push rod into this closed rear end in a liquid-tight and air-tight manner so as to be able to contact the rear end of the shaft 12, or The rear end of the shaft 12 is extended by extending the rear end of the shaft 12 from the closed rear end of the sealed chamber 21 in a liquid-tight and air-tight manner. The operator directly touches the lid 1 with the shaft 12.
3 may be driven by extrusion.

[0036]

As described above, according to the present invention,
First, the sludge cake-like substance and the pressurized fluid can be supplied into the main body of the apparatus, and the sludge cake-like substance is directly dispersed and jetted by the pressure of the pressurized fluid. Dispersion can be reliably performed at a low cost irrespective of the supply amount of sludge cake-like material.For example, even when sewage sludge is dispersed and discharged into an incinerator, the load on the incinerator can be reduced. It is possible to achieve efficient processing by urging the occurrence of bias. In addition, since the sludge cake-like substance is dispersed and ejected by the pressure of the pressurized fluid in this manner, it is possible to surely eject the sludge cake-like substance even when the ejection port is directed upward. It can be dispersed, and more efficient processing can be promoted.

Further, a lid which can be brought into close contact with the opening at the front end of the apparatus main body is provided by being urged inside the apparatus main body via a shaft body provided with an urging means and inserted into the apparatus main body. By defining the above-mentioned spout by the cutout portion formed in the close contact portion between the opening and the lid, even if the spout is blocked, the lid is protruded and retracted due to the fluctuation of the internal pressure of the apparatus body accompanying this. Since the opening is opened and closed, the obstruction of the ejection port can be removed. In particular, when a lid is provided via the shaft, the insertion hole of the device body through which the shaft is inserted is sealed with a sealed chamber. By supplying the purge fluid in a surrounding manner, it is possible to prevent the sludge cake-like substance and the pressurized fluid from leaking from the insertion hole. Further, in the case where the lid is urged through the shaft in this way, by providing a driving means for pushing and driving the shaft, it is possible to prevent the spout before the outlet is closed. Further, by making the driving means manually drivable, intermittently automatic driving, or being able to be driven by a detection signal of a pressure detecting means provided in the apparatus body, more reliable Blockage can be prevented.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a steady state showing one embodiment of the present invention.

FIG. 2 is a sectional view taken along the line ZZ in FIG.

FIG. 3 is a side sectional view showing a state in which the internal pressure of the apparatus main body 1 increases in the embodiment shown in FIG. 1 and the lid 13 projects.

FIG. 4 is a side sectional view showing a state in which the air cylinder 20 is driven and the lid 13 is projected in the embodiment shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Apparatus main body 5 Pressurized fluid supply part 6 Sludge cake-like substance supply part 8 Opening at the front-end | tip of the apparatus main body 8A End face of the opening 8 (close contact part at the side of the apparatus main body 1) 9 Notch 12 Shaft 13 Lid 13A Contact surface (contact portion on the lid 13 side) 17 Coil spring (biasing means) 18 Spout port 19 Cover 20 Air cylinder (drive means) 21 Sealed chamber 22 Purge fluid supply section 25 Control device 26 Pressure gauge (Pressure detection means) O Central axis of device body 1

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme court ゛ (Reference) F23K 3/02 F23K 3/02 Z (72) Inventor Masamichi Kobayashi 2-17-15 Tsukuda 2-chome, Chuo-ku, Tokyo Tsukishima Kikai Co., Ltd. (72) Inventor Masaaki Fujisaki 2-17-15 Tsukuda, Chuo-ku, Tokyo Tsukishima Kikai Co., Ltd. (72) Inventor Masayuki Miyashita 4-25-1 Matsushima, Edogawa-ku, Tokyo A-201F Terms (reference) 3K061 AA24 AC02 DB04 3K065 AA24 AC02 EA06 EA28 EA31 EA33 EA42 4D059 AA03 BB01 EB16 4F033 QA08 QB02Y QB09X QB12Y QB15Y QB20 QD03 QD07 QD16 QE14 QE23X18 QKXXKXX

Claims (9)

[Claims] 1. A sludge characterized by being capable of supplying a sludge cake-like substance and a pressurized fluid to be dispersed and ejected into an apparatus body having an ejection port provided at a nozzle-like tip. -A device for dispersing and ejecting cake-like substances. 2. The apparatus for dispersing and ejecting sludge and cake-like substances according to claim 1, wherein said ejection port is opened upward. 3. The apparatus main body is formed in a bottomed cylindrical shape, and a lid is provided in an opening at a tip end of the apparatus main body so as to be urged inside the apparatus main body so as to be able to adhere to the opening. 3. The dispersed jet of sludge cake-like substance according to claim 1, wherein the jet port is defined by a cutout portion formed at a contact portion between the lid and the opening. apparatus. 4. A shaft body is inserted into the apparatus main body so as to be able to advance and retreat from the bottom toward the opening, and the shaft body is urged toward the bottom by urging means. 4. The apparatus according to claim 3, wherein the lid is provided at a tip of the shaft. 5. A sealing chamber is provided at a rear end side of the apparatus main body so as to surround an insertion hole at the bottom through which the shaft is inserted, and a purge fluid can be supplied into the sealing chamber. 5. The apparatus for dispersing and ejecting sludge cake-like substances according to claim 4, wherein 6. A driving means is provided at a rear end side of the apparatus main body to push a rear end of the shaft protruding from the bottom toward the rear end toward the front end against the urging means. The apparatus for dispersing and ejecting sludge cake-like substances according to claim 4 or 5, wherein the apparatus is used. 7. The apparatus main body is provided with pressure detecting means for detecting a pressure in the apparatus main body, and the driving means can be driven by a detection signal from the pressure detecting means. The apparatus for dispersing and ejecting a sludge cake-like substance according to claim 6. 8. The sludge cake according to claim 6, wherein said driving means can be automatically driven intermittently at predetermined time intervals for a predetermined driving time. Device for dispersing particulate matter. 9. The apparatus according to claim 6, wherein said driving means is manually drivable.