KR101776076B1 - Grate for incineratior - Google Patents

Abstract

A grate for an incinerator is disclosed. More specifically, the present invention relates to the grate for an incinerator, transferring various incinerates such as industrial and environmental wastes inputted to an incinerator to be efficiently incinerated. According to an embodiment of the present invention, a portion of a rear end part coupled to a ring rod is elongated than thickness of the ring rod to prevent the grate from being separated from the ring rod when an external force is applied.

Description

{GRATE FOR INCINERATIOR}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grate for an incinerator, and more particularly, to a grate for an incinerator that efficiently transports various incineration products such as industrial and environmental waste put into an incinerator.

In general, the incinerator is classified into a stoker combustion system, a rotary furnace combustion system, and a fluidized combustion system, and such a combustion system is selected depending on the type and the throughput of incineration materials to be treated. In particular, the stocker combustion method is mainly used for large - scale incineration of urban incinerators.

FIG. 1 illustrates a conventional stoker combustion type grate.

1, in the conventional stoker combustion method, a grate unit 10 composed of a plurality of grate 11 to 14 is disposed adjacent to an inner wall 1 of an incinerator, and each grate 11 to 14 is arranged in a multi- Layer.

The front end f of each of the grate 11 to 14 forms a wall and pushes out the incineration water 50. An inner space is formed in the lower direction to form a flow path of the combustion gas, Shaped U-shaped rear end portion 17 formed by the protrusion is attached to the support bar 21 of the transfer device.

A plurality of such grate 11 to 14 are arranged horizontally from the ground surface of the incinerator and the stepped grate unit 10 of the transport apparatus is formed as the grate 11 to 14 are arranged in the forward and backward directions.

In particular, in the figure, the radial gates 11, 13 in the grate unit 10 are mounted on a fixed frame 35 of the transfer device to form a stationary grate train, and adjacent grate gates 12, Are mounted on the movable frame (36) of the transfer apparatus to constitute a movable grate train, and the grate train rows are arranged alternately along the moving direction (A) of the incineration subject.

As the movable frame 36 is reciprocated in the forward and backward horizontal directions by the reciprocating means provided in the conveying device, both ends of the grate rows reciprocate and the upper portions thereof are reciprocally moved in the reciprocating manner, so that the incineration product 50 and the combustible located in the grate train are returned to the grate 11 To 14) and conveyed in the conveying direction (D).

In this conventional grate unit 10, when the incineration operation is performed, the odd-numbered grate (12, 14) coupled to the stationary frame (35) The rear end portion 17 of the grate unit 10 is separated from the support rod 21 in the rear end p direction by an external force applied to the grate unit 10 due to the oscillation of the incineration water or the machine Often occurs.

Further, at the time of operating the incinerator, the upper part of each grate unit 10 may be damaged by heat and friction to cause a hole or a surface to be worn in the front end (f) direction.

This is because the maintenance of the incinerator is stopped and the grate hatcher unit 10 is mounted, which makes maintenance difficult and troublesome. Also, since the incineration operation must be stopped for maintenance, the heat supply is interrupted, And this leads to an economic loss.

The present invention has been conceived to solve the above-mentioned problems, and it is an object of the present invention to provide a grate for use in an incinerator or the like, in which each grate is not separated from a support rod without providing any supplementary means, There is a problem in providing a durable grate that does not easily break even with an external force.

In order to solve the above-mentioned problems, a grate according to an embodiment of the present invention is a grate having a plurality of steps arranged in a staggered fashion, the grate having an upper end where an incineration water is located; A front end portion extending from one side of the upper end portion; Side ends formed in the vertical direction on both sides of the upper end to form an inner space and the ribs being recessed to a predetermined depth; And a rear end portion which is formed to face the front end portion with respect to the inner space and which is coupled to surround the support rod with a lower portion thereof being opened, wherein the rear end portion includes a protrusion extending at least the thickness of the support rod .

The rear end portion may be a reverse U shape and at least one protrusion may be hemispherically arranged in the inner side of the outermost end.

The upper end may be provided with a first lug having a stepped section with a lower surface.

The front end may have a second lug on its surface.

The first and second lugs may be integrally formed with the lower surface and the front end, respectively.

The opposite end portions may be formed at a point where they meet with the upper end portion, and at least one linear groove may be formed on both side surfaces, each of which is longitudinally parallel to the ribs.

The grate according to the embodiment of the present invention has an effect that a part of the rear end portion coupled with the rope is elongated longer than the thickness of the rope so that the grate can not be detached from the rope even if an external force is applied to the grate.

Further, the grate according to the embodiment of the present invention has the effect of minimizing breakage due to external force and prolonging the life span by further providing reinforcement portions in the inner space and the front end portion.

FIG. 1 illustrates a conventional stoker combustion type grate.
FIG. 2 is a perspective view of a grate structure according to an embodiment of the present invention.
3 is a perspective view of a grate viewed from a bottom direction according to an embodiment of the present invention.
4A to 4E are a side view, a bottom view, a rear view, a front view, and a sectional view of a grate according to an embodiment of the present invention.

Prior to the description, when an element is referred to as being "comprising" or "including" an element throughout the specification, it is to be understood that the element may be further comprised of other elements . Furthermore, terms such as " part, "" unit," or "unit, ", etc. in the specification may refer to components having independent functions by at least one or two or more combinations.

In addition, the thickness of the lines and the size of the constituent elements shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.

Hereinafter, a grate for an incinerator according to a preferred embodiment of the present invention will be described with reference to the drawings. In the following description, the names of the constituent elements of one unit grate are based on the position of the incineration object and its moving direction.

FIG. 2 is a perspective view of a grate structure according to an embodiment of the present invention.

Referring to FIG. 2, the grate 100 according to the embodiment of the present invention is a grate having a plurality of steps arranged in a step-like manner. The grate 100 includes an upper end 110 where the incineration water is located, Side end portions 130 formed in the vertical direction at both sides of the upper end portion 110 to form an inner space and the ribs 131 being formed by recessing the side surface at a predetermined depth; And a rear end portion 140 disposed to face the front end portion 120 so as to face the front end portion 120 and to be coupled with the lower end portion of the rear end portion 140 so as to surround the support rod 21. The rear end portion 140 has an outermost end, (21).

The grate 100 having such a structure is divided into a movable grate column and a fixed grate column in the conveying device of the incinerator and is arranged in parallel in the width direction and arranged in a stepwise manner in the longitudinal direction so that the movable and fixed grate columns alternate alternately, Unit.

The grate 100 is arranged such that the lower end of the front end portion 120 is in contact with the surface of the upper end portion 110 between the front and rear grate elements arranged in the longitudinal direction.

According to this structure, when the movable frame reciprocates back and forth, the front end portion 120 of the movable grate train moves reciprocally on the upper end portion 110 of the stationary grate train positioned at the front, and the upper end portion 110 of the movable grate train moves rearward Lt; RTI ID = 0.0 > stationary grate train. ≪ / RTI >

The incineration water or its combustible material 50 located in each row of the grate 100 is pressed by the front end portion 120 of the grate 100 and conveyed in the conveying direction A. [

Particularly, the grate 100 according to an embodiment of the present invention includes a support rod 21 having at least one of two ends extending in a downward direction from a reverse U-shaped rear end 140 coupled with the support rod 21, 21), and the phenomenon that the grate 100 is separated due to shaking when moving the grate 100 is minimized.

This protrusion 145 does not affect the assembly of the grate 100 and prevents the rear end 145 from being detached from the support bar 21 even during collision between the grate 100 that is moved or fixed during incineration, There is an effect that the operation of the incinerator can be stably performed without being interrupted.

In order to enhance the durability of the grate 100 according to the embodiment of the present invention, various types of reinforcing structures are applied. In particular, the lower surface of the upper end 110 and the lower surface of the front end 120 A further thickened lug 125 may be formed.

Hereinafter, the structure of the grate according to an embodiment of the present invention will be described in more detail with reference to the drawings.

FIG. 3 is a perspective view of a grate viewed from a bottom direction according to an embodiment of the present invention, and FIGS. 4a to 4e are a side view, a bottom view, a rear view, a front view, Fig.

3 and 4A to 4E, according to the embodiment of the present invention, one unit grate 100 may have an upper end 110, a lower end 110, A front end portion 120 extending in the longitudinal direction and pushing out the incineration water or the like, a side end portion 130 disposed in the lower end direction of the upper end portion and connected to the upper end portion 110 and the front end portion 120 to form a wall, And may be divided into a rear end portion 140 disposed to correspond to the front end portion 110 about the end portion 130 and a rear end portion 140 coupled to the support rod 21 (FIG. 2). Here, the inner space is created by the side surfaces 130, the front end 110, and the rear end 140 of the lower surface 115 of the upper end portion 110 constituting the wall in four directions.

A first lug 115 is formed in the inner space formed in the lower surface 110 of the upper portion 110 to minimize damage and deformation of the lower surface 110 due to the heat and pressure. The first lug 115 plays a role of minimizing breakage and deformation of the upper end from the high temperature and high pressure in the incinerator, and also spreads the air flowing from the lower portion uniformly over the entire area of the upper end when the incinerator is cooled.

A step may be formed on the lower surface 111 by the first lug 115 and may be integrated with the lower surface 111 when viewed in cross section.

The portion of the upper end 110 where the front end portion 120 meets the curved portion is curved so that the incineration water located in the upper end portion 110 can be easily pushed and moved. On the surface of the front end portion 120, A second lug 125 is formed to minimize breakage and deformation of the front end portion 120. The second lug 125 reinforces the thickness of the front end portion 120 to prevent its breakage and deformation, as well as facilitating the movement of the incineration product. The second lug 125 may be formed of the same material as that of the front end 120 and may be formed at the same time that the structure of the second lug 125 is included in the mold frame for manufacturing the grate.

The side end portions 130 are formed in parallel with the longitudinal direction of the grate 100 to form a wall. The region where the upper end portion 110 and the upper end portion 110 meet can be extended by a predetermined distance in both side directions to form the ribs 131. These ribs 131 serve to form gaps between adjacent grate 100 in the grate unit.

Further, on the surface of the wall formed by the both end portions 130, there can be further formed a straight groove 135 extending in the longitudinal direction. This is a space filled with heat and gas flowing between the neighboring grate in the incineration process, and serves to disperse heat to prevent breakage and deformation of both side ends 130.

A plurality of the grate 100 having the above-described structure is coupled to the support bar 21 to form a grate unit. The support bar 21 has a U-shaped rear end 140 extending from one side of the upper end 110, As shown in FIG. Particularly, in order to minimize the deviation of the rear end portion 140 from the support rod 210 due to the swinging motion when the grate 100 reciprocates, one of the two U-shaped protrusions 141 and 145 has a thickness And has a structure that is extended and protruded longer. Here, it is preferable that the outermost protruding portion 145 is formed longer.

Here, the protruding directions of the two protrusions 141 and 145 are formed in a direction perpendicular to the paper surface. When the grate 110 is installed on the support rod 21, the grate 110 is coupled to the support rod 21 in a manner that the grate 110 is coupled to the support rod 21, 140 may be prevented, but difficulties may arise in the joining process. In addition, one or more hemispherical protrusions 149 may be further formed on the inward surface of the protrusion 145 to prevent the protrusion from separating from the support bar 21. [ The protrusion 149 has a small contact area with the support bar 21 so that the occurrence of separation between the support bar 21 and the rear end 140 can be minimized in the event of shaking without interfering with the coupling operation.

According to the above-described structure, when viewed from the front view and the cross-sectional view, the two protrusions 141 and 145 are exposed in a downward direction in the grate 100, which can serve as a stopper of the moving grate.

While a great many are described in the foregoing description, it should be construed as an example of preferred embodiments rather than limiting the scope of the invention. Accordingly, the invention is not to be determined by the embodiments described, but should be determined by equivalents to the claims and the appended claims.

100: (unit) Grate 110: upper part
111: lower surface of (upper end) 115: first lug
120: front end portion 125: second lug
130: Both ends 131: Rib
135: groove 140: rear end
141: protrusion 145: (extended) protrusion
149: projection

Claims (1)

As a grate having a plurality of steps arranged in a row,
An upper end where the incineration water is located;
A front end portion extending from one side of the upper end portion;
Side ends formed in the vertical direction on both sides of the upper end to form an inner space and the ribs being recessed to a predetermined depth;
And a rear end portion formed to face the front end portion with the inner space as a center,
The rear-
Wherein the outermost end includes at least a first protrusion extending longer than a thickness of the support bar and a second protrusion opposed to the first protrusion but extending shorter than the first protrusion,
U-shaped in a reverse direction, and when the support bar is in contact with the support bar, the support bar is guided along the outer surface to be seated at a predetermined position,
Wherein at least one projection is hemispherically arranged in an inner direction of the first projection,
Wherein the at least one protrusion minimizes a separation distance due to a tolerance between a distance between the first protrusion and the second protrusion and a thickness of the support bar,
Wherein the upper end portion is provided with a first lug having a stepped section with a lower surface,
Wherein a boundary between the upper end and the front end is formed in a curved shape,
The front-
And a second lug forming an upward inclined slope along the direction of movement of the incineration article so that the incineration seated on the upper end is guided along the boundary between the upper end and the front end and along the slope,
The two-
A rib is formed at a point where it meets the upper end,
Wherein at least one flat groove parallel to the ribs is formed longitudinally on both side surfaces.

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