KR200439983Y1 - Fire grate and bar supporting the same - Google Patents

Abstract

The present invention provides a grate comprising a rectangular main body in a horizontal direction and a rear end wall extending downward from a longitudinal rear end of the main body; The grate supporting rod used to support the grate row, in the grate, the center portion in the width direction of the rear end wall is formed in the lower and rear open space, the remaining portion of the rear end wall is opened downward A 'c' shaped mounting groove is formed along the width direction, and a stepped extension is formed at the outer edge of the mounting groove in the width direction, and in the grate supporting rod, it extends in the column direction of the grate. A main body having a rectangular cross section and a plurality of first fixing protrusions protruding outward of the main body, wherein the first fixing protrusions are formed at intervals corresponding to the widthwise dimension of the grate, and a widthwise depth of the stepped extension of the grate; It has a width of twice.

Grate, mounting groove, support rod, first fixing protrusion, second fixing protrusion

Description

FIRE GRATE AND BAR SUPPORTING THE SAME}

BRIEF DESCRIPTION OF THE DRAWINGS The front view which shows the typical structure of the waste conveying apparatus by which the conventional grate was cascade | arranged in an incinerator.

2 is a perspective view of an incineration treatment table made of a conventional grate, and a fixing ring and a supporting rod used to support the same.

3 is a diagram schematically showing a problem caused by the assembly of a conventional grate and a support rod disposed in the vicinity of the inner wall of the incinerator.

4 is a (a) plan view, (b) front view and (c) side view of the grate according to one embodiment of the present invention, respectively.

5 is a (a) front view and (b) side view of the support rod connected to the grate shown in FIG.

** Explanation of symbols for main parts of drawings **

10: grate 20: grate main body

30: shear wall 40: rear wall

45: space 50: side wall

60: mounting groove 64: expansion part

100: support rod 102: support rod body

104: first fixing protrusion 106: second fixing protrusion

The present invention relates to a grate of an incinerator for incineration of waste (living waste, industrial waste, infectious waste, etc.).

The present invention also relates to a support rod connected to a mounting groove formed in the rear end wall spoken from the rear end of the grate.

In the treatment of wastes such as household wastes and industrial wastes, a method of incineration of wastes in the incinerator is most commonly employed, and the waste put into the incinerator is completely burned by a process such as drying, combustion, and post-combustion. Below the incinerator for this use, a stocker type conveying apparatus including heat-resistant / wear-resistant metal grate is provided.

1 is a schematic view showing a typical structure of a waste conveying apparatus, wherein the waste conveying apparatus comprises an incineration treatment table composed of a plurality of grate 10 and various supporting devices for supporting or reciprocating the grate 10.

The grate 10 constituting the incineration treatment table is connected to the fixed grate 12 and the moving grate 12 connected to the moving frame 120 reciprocating by a drive device 110 such as a hydraulic cylinder, depending on the movable property. Although divided into the fixed grate 14, typically the grate of the same structure is used for the mobile grate 12 and the fixed grate (14).

These grate 10 (12, 14) is arranged in a stepwise form in a row in the width direction (direction perpendicular to the ground in Fig. 1), waste or combustion products loaded on the incineration treatment by the reciprocating motion of the moving grate 12 It is conveyed gradually to the downstream side (right side of FIG. 1).

2 is a perspective view showing a portion of the incineration treatment table consisting of grate 10 and a supporting rod 100 positioned below the grate. Mounting grooves 60 are formed on the lower surface of the rear end wall 40 on the upstream side of each grate 10, and the supporting rods 100 of the moving frame 120 or the fixing frame 130 are attached to the mounting grooves ( The grate 10 is inserted into the 60 and is configured to be supported.

Conventionally, a support rod 100 having a circular cross section is mainly used to support the grate 10, and a plurality of grates 10 arranged in the width direction may be maintained at a mounting position, so that the support rod 100 has a fixed ring ( 110 is joined by a method such as welding.

Corresponding to the configuration in which the fixing ring 110 is employed, the fixing ring accommodating portion 62 is stepped in the widthwise edge of the mounting groove 60 of the grate 10.

3 schematically illustrates a problem that often occurs when the assembly of the support rod 100 and the grate 10 having a circular cross section as described above is used in an incinerator. When foreign matter is introduced between the grate 10, the grate 10 is subjected to pressing force in the width direction (A of FIG. 3), but the width of the grate 10 is restricted by the fixing ring 110, but the warp is distorted. This causes upward displacement (B in Fig. 3). As a result, the grate 10 is opened while the grate 10 rises from the supporting rod 100 due to the inflow of foreign matter, and the grate 10 adjacent to the incinerator inner wall 150 wears the inner wall 150 (FIG. 3C).

As such, the structure in which the grate 10 is simply placed on the support bar 100 has a small contact area and cannot prevent vertical fluctuations of the grate, so that the grate 10 can be easily dropped even with a weak impact.

On the other hand, the typical size of the grate 10 is about 550mm ~ 650mm in length, about 220mm ~ 240mm in width, about 80mm ~ 100mm in height, and because it is usually made of cast iron, it is somewhat unreasonable to carry alone by adults. Therefore, it is preferable to downsize the grate in order to facilitate work or handling such as assembly and replacement, but in this case, the dropping of the grate 10 from the support rod 100 may be more problematic. In other words, when a constant amount of impact is applied to one of the grate, as the weight of one grate 10 is lighter, the resistance to local fluctuation decreases, which is disadvantageous to prevent falling off. ) And the connection structure of the support bar 100 should be accompanied.

Further, in the incineration treatment table of FIG. 1 in which the grate is arranged stepwise, friction and wear are caused by relative movement in a state in which a part of the weight of the grate 10 on the upstream side acts on the upper surface of the grate 10 on the downstream side. Is a major factor in determining the life span of the grate, and improvement is required.

An object of the present invention for solving the conventional problems as described above is to effectively prevent the fluctuation and dropping of the grate by changing the structure of the grate and the support bar.

Another object of the present invention is to extend the life by preventing the weight of the grate to be supported by the support rod to prevent wear between the grate.

Still another object of the present invention is to reduce the size and weight of the grate so that handling of the grate may be carried by even one worker.

The present invention has been achieved by earnestly examining the problems described above to improve the structure of the grate and the support bar, and the gist of the present invention is as follows.

(1) a grate comprising a rectangular main body in a horizontal direction and a rear end wall extending downward from a longitudinal rear end of the main body, wherein a space opened downwardly and rearward in a central portion of the rear end wall in a width direction; In the remaining portion of the rear end wall, a 'c' shaped mounting groove opened downward is formed along the width direction, and a stepped extension is formed at the outer edge of the mounting groove in the width direction. Grate.

(2) A grate supporting rod used to support a grate row made of grate according to (1), the main body having a rectangular cross section extending in the row direction of the grate and a plurality of first fixing protrusions protruding along the outer periphery of the main body; And the first fixing protrusion is formed with a period corresponding to the widthwise dimension of the grate and has a width twice the width in the lateral depth of the stepped extension of the grate.

(3) The method of (2), further comprising: a plurality of second fixing protrusions located between the plurality of first fixing protrusions and protruding along the outer periphery of the body, wherein the plurality of second fixing protrusions are rear end walls of the grate. The grate support rod having a width corresponding to the width direction dimension of the space formed in the.

(4) The grate support rod according to (2) or (3), wherein the plurality of first fixing protrusions or the plurality of second fixing protrusions are rectangular or circular in cross section.

<Preferred embodiment>

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to FIGS. 4 and 5 of the accompanying drawings.

4 and (a) a plan view, (b) a front view, and (c) a side view according to an embodiment of the present invention, and FIG. 5 is used with the grate 10 of the structure shown in FIG. 4. (A) front view and (b) side view of the supporting rod 100 to be.

The grate 10 includes a rectangular main body 20, a front wall 30, a rear end wall 40, and a side wall 50 formed extending from the front and rear ends in the longitudinal direction and the left and right ends in the width direction of the main body 20. Equipped.

Since the rear end wall 40 is provided with a mounting groove 60 connected to the support rod 100, the thickness is thicker than that of the front wall 30 or the side wall 50, and the center portion in the width direction of the rear end wall 40 is the weight of the grate. It is designed as a space 45 open rearward and downward for reduction. In the remaining portion of the rear end wall 40, a mounting groove 60 opened downward is formed along the width direction.

Mounting groove 60 of the grate 10 according to the present invention, unlike the structure of the 'U'-shaped mounting groove of the grate connected to the support rod of the conventional circular cross-section, the bottom (ceiling surface in the front view of Figure 4) This flat shape is made of an angular shape of the 'c' shape as a whole, and correspondingly, the main body 102 of the support rod 100 also has a rectangular cross section.

When the mounting groove 60 and the support rod 100 are connected by the coupling structure as described above, an area in which the side of the mounting groove 60 contacts the side surface of the main body 102 of the rectangular cross section of the support rod 100 increases and is gripped. It is advantageous in that it is possible to have the form, and compared with the conventional combination of the grate and the support rod, it is possible to impart resistance to the vertical swing and width movement of the grate 10 during operation of the incinerator.

In addition, a stepped extension 64 having an extension of the mounting groove 60 is formed at a widthwise edge of the mounting groove 60 of the grate 10, and the support rod 100 corresponds to the main body 102 of the support rod. A first fixing protrusion 104 protruding along the outer circumference of the) is formed. Therefore, when assembling the grate 10 and the support rod 100, the first fixing protrusion 104 of the support rod 100 is accommodated in the extension 64 of the grate 10, and one first fixing protrusion ( Since 104 is shared by two gratings arranged in the width direction, the width of the first fixing protrusion 104 is set to correspond to twice the depth of the expansion portion 64.

By such a first fixing projection 104, it is possible to reliably prevent the grate 10 from moving in the width direction on the supporting rod 100.

In a preferred embodiment of the present invention, the space 45 located at the center portion in the width direction of the mounting groove 60 of the grate is utilized. To this end, the supporting rod 100 is formed with a second fixing protrusion 106 having a width corresponding to the width direction of the space 45 of the grate 10 protrudes along the outer circumference of the supporting rod 100.

According to this preferred embodiment, when the second fixing projection 106 of the support rod 100 is inserted into the space 45 of the grate 10, the transverse movement of the grate 10 is more reliably prevented and thus the grate 10 ) May be more completely fixed on the support bar (100).

In the present invention, the main body 102 of the support rod 100 is rectangular in cross section, but the first fixing protrusion and / or the second fixing protrusion is limited in particular if the grating 10 can prevent the widthwise movement of the grate 10. It is not necessary, and it is possible to make it into an appropriate shape, such as square and / or a circle.

According to the configuration of the present invention as described above, because the grate 10 can be firmly fixed to the support rod 100, it is possible to prevent the phenomenon of falling out of the grate 10 or the gap between the grate during incinerator operation. Therefore, it is possible to fundamentally solve the wear problem of the incinerator side wall.

In addition, when the assembly of the grate 10 and the support rod 100 according to the present invention is employed in the incinerator, the grate 10 is fixed to the support rod 100 so that most of the grate's own weight is supported by the support rod 100. Therefore, the load on the upper surface of the grate 10 on the downstream side is significantly reduced, so that the wear on the upper surface of the grate can be significantly reduced and the life of the grate is improved.

In addition, the grate 10 shown in FIG. 4 has a shape that is reduced in size by approximately half the width direction compared to the grate illustrated in FIG. 2, and the length and height are the same as those of the conventional grate, as shown in FIG. 1. It is compatible with the grate that has been used in the installation.

As described above, the preferred embodiment of the present invention has been described, but the scope of the present invention is not limited to the above embodiment, and various modifications are possible without departing from the essential and essential configuration of the present invention. Accordingly, the embodiments described above are merely illustrative and not intended to have a limiting meaning, and the scope of the present invention should be understood to include the matters set forth in the appended claims and all modifications that may be understood therefrom. .

According to the present invention, it is possible to prevent the problem that foreign matter flows between the grate without the movement of the upper and lower left and right by making a perfect fixing to the support rod when installing the grate, the problem that the upper surface of the grate is worn and the side wall of the incinerator is worn You can solve the problem. In addition, the grate can be miniaturized, and thus the grate can be easily moved and installed.

Claims (4)

A grate comprising a rectangular main body in a horizontal direction and a rear end wall extending downward from a longitudinal rear end from the main body, In the center portion of the rear end wall in the width direction is formed a space that is opened downward and rearward, the remaining portion of the rear end wall is formed in the width direction along the width direction of the 'c'-shaped mounting groove, The grate, characterized in that the step-shaped extension is formed on the outer edge of the mounting groove in the width direction. A grate support rod used to support a grate row made of grate according to claim 1, A main body having a rectangular cross section extending in the column direction of the grate, and a plurality of first fixing protrusions protruding along the outer periphery of the main body, The first fixing projection is formed with a period corresponding to the width direction dimension of the grate, grate support rods, characterized in that the width of the width direction depth of the step-shaped expansion portion of the grate. The method of claim 2, Further comprising a plurality of second fixing protrusions located between the plurality of first fixing protrusions and protruding along the outer periphery of the body, The plurality of second fixing projections grate supporting rods, characterized in that having a width corresponding to the width direction dimension of the space formed on the rear end wall of the grate. The method according to claim 2 or 3, The plurality of first fixing projections or the plurality of second fixing projections grate support bar, characterized in that the cross section is rectangular or circular.

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