KR200495615Y1 - Fire grate for stoker type incineratior and installation structure thereof - Google Patents

Abstract

The grate according to the present invention is a grate applied to a stocker-type incinerator in which a plurality of grate rows are divided into a fixed end and a moving end and are alternately arranged in a stepwise manner. side walls extending downward from both left and right sides of the upper wall; a front wall extending downward from the front side of the upper wall; Front leg parts supported by the upper wall of another grate located in the front in a state installed in the incinerator; Rear leg part supported by the support frame of the stocker in a state installed in the incinerator; and a hook portion formed in the rear corner portion and hooked on the hook bar provided on the support frame, and since the method is fixed to the support frame side of the stocker using the hook portion formed on the rear side of the grate, its departure can be reliably prevented. Also, its manufacture is simple and installation work is easy.

Description

FIRE GRATE FOR STOKER TYPE INCINERATIOR AND INSTALLATION STRUCTURE THEREOF

The present invention relates to a grate for an incinerator and its installation structure, and more particularly, to a grate applied to a stocker-type incinerator and its installation structure.

In general, it is desirable to recycle waste such as household or industrial waste, but when recycling or sanitary treatment is difficult, incineration is performed using an incinerator. This incineration treatment method has recently emerged as an important method of eco-friendly resource circulation because it is possible to obtain renewable energy such as steam and electric energy by using the incineration waste heat.

Among the conventional waste treatment methods using such an incinerator, a stocker-type incinerator that is easy to construct and can incinerate in a wide range from low calorific value to high calorific value waste is widely used. A stocker-type incinerator includes a plurality of rows of fire grates alternately arranged in the form of steps of a fixed end and a moving end, a support frame for the plurality of grate rows, and a stocker including a reciprocating means for the fixed end grate rows. It is provided, and while burning waste on the plurality of grates, the combusted waste is sequentially moved toward the outlet through a process in which the moving-end grate row reciprocates back and forth between the fixed-end grate rows by the reciprocating means. do.

On the other hand, in relation to the method of fixing or supporting the grate to the support frame in the stocker-type incinerator, a round bar or square bar type support bar is provided on the support frame, and from the grate body from the rear side of the grate, that is, from the side opposite to the garbage movement direction. A so-called upper-mounted grate in which a glue type insertion groove is provided on the lower surface of each part integrally extended downwardly and the groove type groove is simply placed on a support rod is generally used. In the case of such a stand-up grate, the grate is simply placed on the support rod, so it is easy to install. .

In other words, in the case of a conventional stand-up grate, the coupling between the support grooves of the downwardly open structure provided in each part and the support rods provided in the support frame is the weight of the grate itself and the accumulated load transferred from the upper grate row in the installed state from the support rods. It is a form in which the escape of is suppressed. For this reason, when the grate body or each part wears out in the process of use and reaches a critical value that exceeds the horizontal or inclined angle at the time of initial installation, the grate is easily removed from the support rod, so the operation of the incinerator must be inevitably stopped. improvement is needed

As part of this, a method has been introduced in which a separate locking means is provided near the lower surface of the insertion groove of the stand-up grate, the grate is installed on a support rod, and then the opening part of the insertion groove is shielded or locked with the locking means. Due to the device, manufacturing and installation of the grate is cumbersome, and due to the failure of the locking device provided as a separate accessory, there is a limitation in that the desired purpose of preventing separation of the grate cannot be sufficiently improved.

An object of the present invention is to provide a grate for a stocker-type incinerator, and an installation structure thereof, which can be reliably prevented from being separated from a support frame without complicated manufacturing and installation of the grate.

The gist of the present invention related to the above solution is the same as described in the claims below.

(1) A grate applied to a stocker-type incinerator in which a plurality of grate rows are divided into a fixed end and a moving end and are alternately arranged in a stepwise manner, wherein the upper wall is the upper wall; side walls extending downward from both left and right sides of the upper wall; a front wall extending downward from the front side of the upper wall; Front leg parts supported by the upper wall of another grate located in the front in a state installed in the incinerator; The rear leg part supported by the support frame of the stocker in the state installed in the incinerator; and a hook portion formed on the rear leg portion and hooked on the hook bar provided on the support frame.

(2) a rear extension portion extending rearwardly from the lower surface of the rear leg portion; and an upper extension portion extending upwardly from the rear extension portion, wherein the upper wall is provided with an upper wall extension portion extending rearward, and a space between the rear extension portion and the upper wall extension portion is formed as an opening through which the locking bar passes. The stocker of (1), characterized in that the space surrounded by the upper surface of the rear extension part, the front surface of the upper extension part, the lower surface of the upper wall extension part, and the rear surface of the rear corner part is formed as a receiving part in which the engaging part is accommodated. Grate for an incinerator.

(3) The grate for the stocker type incinerator of the above (1), characterized in that the hook portion is formed in a pair of left and right.

(4) The grate for the stocker-type incinerator of the above (1), characterized in that the front leg is formed to extend lower than the rear leg with a height difference.

(5) The grate for the stocker type incinerator of the above (4), characterized in that the compensation projection for compensating for the height step is integrally formed on the lower surface of the rear leg portion.

(6) The grate for the stocker-type incinerator of the above (1), characterized in that a gap protrusion is integrally formed on either side of the both side walls.

(7) a plurality of grate rows alternately arranged in the form of steps of a fixed end and a moving end; Support frames for the plurality of grate rows; and a reciprocating means for a moving end grate row; as a grate installation structure applied to a stocker, wherein the grate is a grate for a stocker-type incinerator according to any one of claims 1 to 6, and the rear leg of the grate is the It is supported on the upper surface of the support frame, and the front leg portions thereof are installed to reciprocally slide on the upper wall of another grate located at the rear, and the upper surface of the support frame is provided with a locking bar extending in the width direction of the stairs spaced apart by a predetermined distance, the A grate installation structure, characterized in that the hook portion is caught by the locking bar to prevent separation of the grate.

(8) The upper surface of the support frame further comprises a compensation bar formed in close contact with the upper surface of the support frame from the front side than the locking bar, the compensation bar compensates for the height difference of the rear leg which is formed higher upward than the front leg The grate installation structure of the above (7), characterized in that.

According to the grate for a stocker-type incinerator of the present invention and its installation structure, since it is fixed to the support frame side of the stocker using a hook formed on the rear side of the grate, its separation can be reliably prevented. In addition, the grate is easy to manufacture because one-piece casting is possible, and the detailed shape of the hook part and the height difference between the rear and front parts facilitate the installation work while compensating for the step compensation protrusion or Through the sub-configuration of the compensation bar, it is possible to effectively prevent the minimum risk of the grate falling off during the operation of the stocker due to the height difference.

1 is a structural diagram of a stocker-type incinerator according to an embodiment of the present invention.
2 is a perspective view of a grate for a stocker-type incinerator according to an embodiment of the present invention.
3 is a front view of a grate for a stocker-type incinerator according to an embodiment of the present invention.
4 is a bottom view of a grate for a stocker-type incinerator according to an embodiment of the present invention.
5 is an arrangement perspective view of a grate for a stocker-type incinerator according to an embodiment of the present invention.
6 is an installation structure of a grate according to an embodiment of the present invention.
7 is an installation structure of a grate according to another embodiment of the present invention.

Hereinafter, the present invention will be described in detail through examples. Prior to this, the terms or words used in the present specification and claims should not be construed as being limited to conventional or dictionary meanings, and the designer should properly understand the concept of the term in order to best describe his/her invention. Based on the principle that it can be defined, it should be interpreted as meaning and concept consistent with the technical idea of the present invention. Accordingly, since the configuration of the embodiments described in this specification is only one of the most preferred embodiments of the present invention and does not represent all the technical ideas of the present invention, various equivalents that can be substituted for them at the time of filing of the present invention It should be understood that there may be variations and variations. On the other hand, the same or similar reference numbers are given to the same or equivalent in the drawings, and in the entire specification, when it is said that a part "includes" a certain component, it is a different component unless otherwise stated. It does not exclude, but means that other components may be further included.

The grate 20 according to the present invention is a grate 20 applied to a stocker-type incinerator, and FIG. 1 shows a side structural diagram of the incinerator using such a stocker 10 .

Referring to Figure 1, the stocker 10 is a plurality of grate 20 rows in the form of steps; support frame 30; Reciprocating means 40; includes. The combustion process in the stocker-type incinerator is divided into incineration stages of a drying stage, a combustion stage, and a post-incineration stage, and each incineration stage has a plurality of grate 20 rows in a fixed stage (F1, F2) and a moving stage (M). It is divided and arranged alternately in a stepwise fashion. The support frame 30 can be divided into supporting each of the fixed ends (F1, F2) and the moving ends (M). (M) Only the moving frame 32 for supporting the grate 20 row is shown. The reciprocating means 40 includes an actuator 42 such as a cylinder or motor; Sliding block 44 reciprocating back and forth by the actuator 42; It is exemplified that a moving frame 32 for supporting the moving end (M) grate 20 row is installed on the upper surface of the sliding block 44, including a roller 46 for supporting the lower surface of the slider block. However, the details regarding the detailed configuration of the reciprocating means 40 do not have a limiting meaning in relation to the installation structure of the grate 20 according to the present invention. By the reciprocating motion of the moving frame 32 according to the reciprocating means 40 in the operation process of the stocker-type incinerator, the front leg 24 of the rear grate 20 is relatively above the upper wall 21 of the front grate 20. is slid to Accordingly, the garbage placed on the grate 20 row or its combustible material is pressed by the front wall 23 of the grate 20 and moves downwardly along the stairs sequentially from the rear to the front.

2 is a perspective view of a grate 20 for a stocker-type incinerator according to an embodiment of the present invention (hereinafter, abbreviated as 'grate 20'), FIG. 2 is a perspective view of the grate 20, FIG. 3 grate 20 of the front view, FIG. 4 is a bottom view of the grate 20, and FIG. 5 is an arrangement perspective view of the grate 20, respectively. Hereinafter, for convenience of explanation, with respect to the shape and installation orientation of the grate 20 and its respective parts, the lower part of the stairs is 'front' based on the direction in which waste (not shown) moves along the steps of the grate 20 in FIG. ', and the upper part of the stairs is referred to as 'rear'.

The grate 20 includes an upper wall 21 as a wall element constituting the body; a side wall 22 extending downward from both left and right sides of the upper wall 21; and a front wall 23 extending downward from the front side of the upper wall 21; basically, it includes. a front leg portion 24 as a support element for the body of the grate 20; And a rear leg portion 25 is provided. In this case, the front leg 24 is an element supported on the upper wall 21 of the front grate 20 in a state installed in the incinerator, that is, in a state constituting the incinerator end, and the rear leg 25 is the stocker 10 in a state installed in the incinerator. ) is an element that is directly supported on the support frame 30 .

One of the features of the angle of view according to the present invention is that the hook portion 26 is integrally provided with respect to fixing and supporting the rear leg portion 25 of the grate 20 to the support frame 30 . The hook portion 26 is formed on the rear leg portion 25 and is hooked on the locking bar 34 provided on the support frame 30, so that the detachment can be reliably prevented. In this case, the hooking bar 34 on which the hook part 26 is hung is provided in a form that is spaced a predetermined distance from the upper surface of the support frame 30 and extends in the width direction of the small angle stage, that is, the grate 20 column steps, which will be described later. As described above, the tip of the hook part 26 is inserted and installed through the space between the locking bar 34 and the upper surface of the support frame 30 .

According to the embodiment, the hook portion 26 includes a rear extension portion 262; and an upper extension 264; The rear extension portion 262 is an element integrally extending rearward from the lower surface of the rear leg portion 25 . The upwardly extending portion 264 is an element extending upwardly from the rearwardly extending portion 262 . In this case, the extended lengths of the upper extension 264 and the rear extension 262 should be appropriately adjusted in consideration of the separation prevention side with respect to the grate 20 and the ease of installation/separation.

Specifically, the upper wall extension 212 extending to the rear of the upper wall 21 is provided, and the length of the upper extension 264 is limited to have a predetermined distance from the lower surface of the upper wall extension 212 . Accordingly, a predetermined interval between the rear extension part 262 and the upper wall extension part 212 is formed as the opening 27, and the grate 20 is installed in the support frame 30 or when separated from the locking bar. (34) passes through this opening (27). In this case, the extension length of the upper extension part 264 should be adjusted so that the size of the opening 27 is larger than the diameter of the locking bar 34, but not too long, but if the extension length of the upper extension part 264 is excessively short Installation/detachment of the grate 20 is easy, but it is not preferable because the locking bar 34 can be easily separated from the hook.

An accommodating part 28 is formed inside the hook part 26 to accommodate the locking bar 34 . The accommodating part 28 is the upper surface of the rear extension 262 and the front surface of the upper extension 264 . , becomes a space substantially surrounded by the lower surface of the upper wall extension portion 212 and the rear surface of the rear leg portion 25 . In this case, the width in the front-rear direction of the receiving portion 28 is adjusted in consideration of the diameter size of the locking bar 34 , and may be determined according to the extension length of the rear extension portion 262 . For example, the extension length of the rear extension 262 should be adjusted to be sufficiently long so that the width of the receiving portion 28 in the front-rear direction is larger than the diameter of the locking bar 34, but if the extension length of the rear extension portion 262 is too large Installation/detachment of the grate 20 is easy, but it is not preferable because the locking bar 34 may flow inside the receiving portion 28 .

The hook portion 26 may be formed as a pair of left and right in the width direction on the rear side of the rear leg portion 25 as in the embodiment, and the grate 20 is It is preferable that the operation of attaching and detaching to the hooking part of the support frame 30 is easier and the required amount of expensive heat-resistant steel required to form the hook part 26 can be reduced. In this case, the rear leg portion 25 integral with the hook portion 26 may also be divided into a left and right pair corresponding to the hook portion 26 divided into a left and right pair. However, it is also possible to configure the hook part 26 of a single type having a width corresponding to the width of the grate 20 even if the convenience of the mounting and detaching operation or the effect of reducing the amount of heat-resistant steel is somewhat reduced.

Meanwhile, preferably, the length in which the front leg 24 extends from the upper wall 21 is greater than the length in which the rear leg 25 extends to the upper wall 21, and accordingly, the front leg 24 and the rear leg 25 ), a height step T of a predetermined size is formed. By forming such a height difference T between both sides, the upward inclination angle with respect to the front of the grate 20 in the process of installing/removing the hook bar with respect to the hook bar 34 of the support frame 30 can be minimized and consequently The operation of installing / separating the grate 20 can be made easier.

However, if the size of the above-mentioned height step T is excessive, the horizontal angle with respect to the upper wall 21 of the grate 20 becomes excessively large, so that the relative reciprocating motion between the rear and front grate 20 in the operation process may be unnatural. In this state, it is preferable that the upper wall 21 of the grate 20 is maintained horizontally by compensating for this. For this purpose, it is preferable that a compensating protrusion 256 for compensating for the height difference T between the both legs is formed on the lower surface of the rear leg part 25 . In this case, the compensating protrusion 256 is biased toward the front side as much as possible from the lower surface of the rear leg portion 25 so that the grate 20 can be located on the front side than the locking bar 34 in a state in which the grate 20 is installed on the support frame 30 . It is preferable to form

A plurality of gap protrusions 226 are provided on one side of both sidewalls 22 of the grate 20 . The gap protrusion 226 forms a gap AP between the side walls 22 and the adjacent grate 20 arranged in parallel as shown in FIG. 5, and this gap AP provides a communication path for the combustion gas. This will improve the combustion efficiency.

6 shows the installation structure of the grate 20 according to an embodiment of the present invention. The grate 20 used in this embodiment is a grate 20 for fixing the grate 20 on the support frame 30, and in particular, like the grate 20 shown in FIG. The gap protrusion 226 for compensating the height step T between the respective parts 25 is integrally formed with the grate 20 , and FIG. 6 shows an installation structure using the grate 20 of FIG. 2 . The front leg 24 of the grate 20 reciprocally slides on the upper wall 21 of the other grate 20 located in the front. The rear leg part 25 of the grate 20 is supported on the upper surface of the support frame 30, and the lower surface of the rear leg part 25 is spaced upward from the support frame 30 by the gap protrusion 226, so that the front leg part ( 24) and the rear leg 25 are compensated for the height difference (T). The locking bar 34 is spaced a predetermined distance from the upper surface of the support frame 30 and is provided to extend in the width direction of the small end, that is, in the direction perpendicular to the ground in the drawing, and is provided behind the rear leg portion 25 The hook part 26 is caught on the locking bar 34 . Accordingly, even if the fixed ends (F1, F2) and the movable end of the grate 20 are relatively moved back and forth in the moving process, the grate 20 is not easily separated from the support frame 30 .

In the installation structure of the grate 20 of FIG. 6 , the process of fixing or separating the hook portion 26 of the grate 20 to the locking bar 34 is performed by slightly lifting the front of the grate 20 upward. The locking bar 34 is spaced apart from the upper surface of the support frame 30 at the position of the opening 27 formed between the rear extension 262 of the hook portion 26 and the upper wall extension 212 of the upper wall 21 . It can be carried out in a state lowered to the specified height.

7 shows the installation structure of the grate 20 according to another embodiment of the present invention, a support state between the rear leg part 25 and the support frame 30, a fixed state using the hook part 26, the rear leg part 25 ) and the height difference (T) between the front leg 24 and the front leg 24 of the grate 20 after installation is supported by the upper wall 21 of the front grate 20, etc. same as example On the other hand, in the embodiment of FIG. 7, in relation to the method of compensating for the height difference T between the rear leg 25 and the front leg 24, according to the embodiment of FIG. 6, a compensation protrusion 256 on the lower surface of the rear leg 25 ) instead of a method of integrally forming, the compensation bar 36 is characterized in that the support frame 30 is provided. In this case, the compensation bar 36 is provided on the upper surface of the support frame 30 in a forward biased state with respect to the locking bar 34 , and for example, a metal bar may be formed by welding or the like.

As described above, according to the grate 20 for a stocker-type incinerator of the present invention and its installation structure, it is fixed to the support frame 30 side of the stocker 10 using the hook portion 26 formed on the rear side of the grate 20 In this way, the deviation can be definitely prevented. In addition, the grate 20 is easy to manufacture because one-piece casting is possible, and the detailed shape of the hook part 26 and the height difference T between the rear leg part 25 and the front leg part 24 are used. The grate 20 falls out during the operation of the stocker 10 due to the height step T through the sub-configuration of the compensating protrusion 256 or the compensating bar 36 for facilitating the installation work and compensating for the step. It is possible to effectively prevent even the smallest possible risk.

The above description relates to specific embodiments of the present invention. As described above, the embodiments according to the present invention are disclosed for the purpose of explanation and are not to be construed as limiting the scope of the present invention, and those of ordinary skill in the art will not depart from the essence of the present invention. It should be understood that various changes and modifications can be made without

10: Stalker
20: grate for stocker type incinerator
21: upper wall
212: upper wall extension
22: side wall
226: interstitial process
23: front wall
24: front leg
25: rear leg
256: compensation projection
26: hook part
262: rear extension
264: upper extension
27: opening
28: receptacle
30: support frame
32: moving frame
34: jam bar
36: reward bar
40: reciprocating means
42: actuator
44: sliding block
46: roller
F1, F2: fixed end
M: mobile
T: height difference
AP: Gap

Claims (8)

delete delete delete delete delete delete A plurality of grate rows alternately arranged in the form of steps of a fixed end and a moving end; Support frames for the plurality of grate rows; As a grate installation structure applied to the stocker including; and reciprocating means for the moving end grate row,
The grate is a grate applied to a stocker-type incinerator in which a plurality of grate rows are divided into a fixed end and a moving end and are alternately arranged in a stepwise manner. side walls extending downward from both left and right sides of the upper wall; a front wall extending downward from the front side of the upper wall; The front leg part supported on the upper wall of another grate located in the front in the state installed in the incinerator; The rear leg part supported by the support frame of the stocker in the state installed in the incinerator; and a hook portion formed in the rear corner portion to be caught on the locking bar provided on the support frame; and
The hook portion includes a rear extension portion extending rearwardly from the lower surface of the rear leg portion; and an upper extension portion extending upwardly from the rear extension portion;
The upper wall is provided with an upper wall extension extending rearward,
Between the rear extension part and the upper wall extension part is formed as an opening through which the locking bar passes,
A space surrounded by the upper surface of the rear extension part, the front surface of the upper extension part, the lower surface of the upper wall extension part, and the rear surface of the rear corner part is formed as a receiving part in which the engaging part is accommodated,
The front leg is formed to extend lower than the rear leg with a height difference,
A compensating protrusion for compensating for the height step is integrally formed on the lower surface of the rear leg portion,
The rear leg part of the grate is supported on the upper surface of the support frame, and the front leg part is installed to reciprocally slide on the upper wall of another grate located in the front,
A locking bar extending in the width direction of the stairs is provided on the upper surface of the support frame spaced apart from each other by a predetermined distance, and the hook portion is caught on the locking bar to prevent separation of the grate,
The upper surface of the support frame further comprises a compensation bar that is formed in close contact with the upper surface of the support frame from the front side than the locking bar, wherein the compensation bar compensates for the height difference of the rear leg which is formed higher upward than the front leg A grate installation structure, characterized in that delete

Images