阅读说明：本技术 一种生活垃圾焚烧炉排炉排块结构 (Fire grate block structure of household garbage incineration grate ) 是由 焦学军 陈宇翔 於志华 严梦帆 傅崇振 黄浩哲 刘超 郑宇� 苏文浩 朱海洋 于 2019-10-07 设计创作，主要内容包括：本发明涉及一种生活垃圾焚烧炉排炉排块结构,所述的结构是在每列炉排模块之间组装若干尺寸相同的炉排块结构；侧面炉排块呈截面L型,该炉排块的内侧面用螺栓固定于炉排支撑梁内侧,顶面与支撑梁形成空腔；侧面炉排块的下面侧设有筋板与支撑梁形成卡槽,侧面炉排块的上面侧设有筋板,对称组装后两条侧面炉排块筋板形成侧面炉排块卡槽。解决了热膨胀的问题,宽度方向上可增加炉排并排模块。本发明可大大提高该结构使用寿命。(The invention relates to a fire grate block structure of a household garbage incinerator, which is characterized in that a plurality of fire grate block structures with the same size are assembled among fire grate modules in each row; the side grate block is L-shaped in section, the inner side surface of the grate block is fixed on the inner side of a grate support beam by bolts, and the top surface and the support beam form a cavity; the lower side of the side grate block is provided with a rib plate to form a clamping groove with the supporting beam, the upper side of the side grate block is provided with a rib plate, and the two rib plates of the side grate block after symmetrical assembly form a side grate block clamping groove. The problem of thermal expansion is solved, and grate side-by-side modules can be added in the width direction. The invention can greatly prolong the service life of the structure.)

1. A fire grate block structure of a household garbage incinerator is characterized in that a plurality of fire grate block structures with the same size are assembled among fire grate modules in each row; the side grate block is L-shaped in section, the inner side surface of the grate block is fixed on the inner side of a grate support beam by bolts, and the top surface and the support beam form a cavity; the lower side of the side grate block is provided with a rib plate to form a clamping groove with the supporting beam, the upper side of the side grate block is provided with a rib plate, and the two rib plates of the side grate block after symmetrical assembly form a side grate block clamping groove.

2. The grate block structure of the household garbage incinerator, as claimed in claim 1, wherein the outer side surface of the grate cover plate is semi-cylindrical.

3. The fire grate block structure of the household garbage incinerator according to claim 1, characterized in that two rib plates are arranged on the inner side face, and each rib plate is provided with a through hole.

4. The fire grate block structure of the household garbage incinerator, according to claim 1, characterized in that the bottom of the fire grate cover plate bracket is I-shaped and can be inserted into a cavity formed by the side grate blocks and the supporting beams, and the side grate blocks and the supporting beams form clamping grooves which can fix the upper position and the lower position of the fire grate cover plate bracket.

5. The household garbage incinerator grate block structure according to claim 1, characterized in that the grate cover plate bracket is provided with a clamping plate which is matched with a side grate block lower side rib plate to be installed by a positioning bracket.

6. The fire grate block structure of the household garbage incinerator according to claim 1, characterized in that two hooks are arranged on the bracket, the direction of the hooks is opposite to the advancing direction of garbage, and the hooks are matched with through holes in a grate cover plate rib plate for installation.

7. The fire grate block structure of the household garbage incinerator, according to claim 1, characterized in that an L-shaped stainless steel plate fixed on one side is arranged between the bottom of the fire grate block and the fire grate support beam, and the fixing holes for preventing leachate from leaking and corroding the fire grate are used together with the side fire grate blocks.

8. The fire grate block structure of the household garbage incinerator, according to claim 1, is characterized in that the fire grate block structure is integrally combined and fixed to form an expansion joint type fire grate block which is directly communicated with an air cooling beam, and cooling air can pass through an inner gap of the fire grate block and a cavity formed by stainless steel to achieve a cooling effect.

Technical Field

The invention relates to the field of incineration equipment, in particular to an intermediate fire grate block structure applied to an incinerator fire grate.

Background

With the continuous development of urban economic construction and the continuous improvement of the standard of life of citizens, a large amount of urban domestic garbage is continuously generated every day, so that the single-line treatment capacity of the mechanical fire grate for garbage incineration needs to be further improved along with the increase of the treatment capacity, and the area of the fire grate is increased.

Therefore, in order to increase daily treatment capacity of the fire grate and increase the surface area of the fire grate, but if the length direction is not changed, a row of fire grate modules are required to be added in the width direction of the fire grate, each row of fire grate is provided with an independent driving device, the speed can be freely adjusted, and the phenomenon of uneven feeding and the like can be prevented

The fire grate is formed by combining three rows of modules, the expansion gap thermal expansion compensation problem exists among the modules, and the fire grate block structure is needed to absorb thermal expansion and can control ash leakage and prevent stockpiling and the like.

Disclosure of Invention

The invention aims to overcome the problems and provides a grate block structure of a household garbage incinerator.

The specific technical scheme of the invention is as follows: a household garbage incineration grate block structure is characterized in that a plurality of grate block structures with the same size are assembled among grate modules in each row;

the side grate block is L-shaped in section, the inner side surface of the grate block is fixed on the inner side of a grate support beam by bolts, and the top surface and the support beam form a cavity; the lower side of the side grate block is provided with a rib plate to form a clamping groove with the supporting beam, the upper side of the side grate block is provided with a rib plate, and the two rib plates form a clamping groove after symmetrical assembly.

Furthermore, the outer side surface of the grate cover plate is in a semi-cylindrical shape; can prevent that surface rubbish from piling up, and difficult scaling loss and wearing and tearing, two gussets that the medial surface was equipped with set up the through-hole on every gusset, set up the gusset and can make things convenient for the casting to prevent to warp.

Furthermore, the bottom of the grate cover plate bracket is I-shaped and can be inserted into a cavity formed by the side grate block and the support beam, and the side grate block and the support beam form a clamping groove which can fix the upper position and the lower position of the grate cover plate bracket. The grate cover plate bracket is provided with a clamping plate which is matched with a rib plate on the lower side surface of the side grate block to be installed with a positioning bracket. The direction of two hooks arranged on the bracket is opposite to the advancing direction of the garbage, and the hooks are matched with through holes on the grate cover plate rib plate for installation.

Furthermore, an L-shaped stainless steel plate with one side fixed is arranged between the bottom of the fire grate block and the fire grate supporting beam, and the fixing holes are used with the side fire grate blocks, so that percolate can be prevented from leaking and corroding the fire grate.

Furthermore, an expansion joint type grate block is formed after the integral combination and fixation and is directly communicated with the air cooling beam, and the cooling air can pass through the inner gap of the grate block and the cavity formed by the stainless steel to achieve the cooling effect.

The invention has the beneficial effects that: the problem of thermal expansion is solved, and grate side-by-side modules can be added in the width direction. And the stainless steel design can prevent leachate leakage and cause fire grate frame corrosion, the stainless steel plate fixed on one side is laid on the expansion joint to play a role in sealing and facilitate sliding after thermal expansion, the length directions of the middle fire grate cover plate and the side fire grate blocks are consistent and simple and convenient to mount, the stainless steel plate is directly communicated with the air cooling beam after being assembled, each cover plate and the stainless steel plate form a cavity, and cooling air is blown in to play an air cooling effect. The cover plate is designed to be arc-shaped, so that stockpiling can be prevented, burning loss is not easy to occur, and the service life of the structure is greatly prolonged.

Drawings

FIG. 1 is a front view of a grate furnace of the present invention.

FIG. 2 is a side view of the grate furnace of the present invention.

FIG. 3 is a schematic view of the installation of the grate block of the present invention.

FIG. 4 is a schematic view of an intermediate side grate block of the present invention.

Fig. 5 is a three-dimensional view (front, side and top) of a grate cover bracket according to the present invention.

Fig. 6 is a three-dimensional view (front, side and top) of the intermediate grate cover of the present invention.

In the figure: 101-a grate side support beam, 102-a middle side grate block, 103-a side grate block rib plate, 104-a grate cover plate bracket, 105-a bracket clamping plate, 106-a bracket hook, 107-a middle grate cover plate, 108-a grate cover plate hole, 109-a side grate block clamping groove and 110-a stainless steel plate.

Detailed Description

As shown in figures 1 and 2, the water content in the garbage is as high as 50%, the thickness of the garbage layer is about 500mm during combustion, the surface temperature of the grate is between 200 and 450 ℃, the garbage contains percolate with high corrosiveness, drop walls of about 1.6m exist among three sections of drying, combustion and burnout in the length direction of the grate, the garbage has a loosening effect when falling from the drop walls, and impact is generated on an expansion structure. Therefore, the material is made of high-chromium cast steel with high temperature resistance, wear resistance, corrosion resistance and impact resistance.

As shown in fig. 3 to 6, a household garbage incinerator grate block structure, which is formed by assembling a plurality of grate block structures with the same size between each row of grate modules; the side grate block is L-shaped in section, the inner side surface of the grate block is fixed on the inner side of a grate support beam by bolts, and the top surface and the support beam form a cavity; the lower side of the side grate block is provided with a rib plate which forms a clamping groove with the supporting beam, the upper side of the side grate block is provided with a rib plate, and the two rib plates 103 of the side grate block after symmetrical assembly form a side grate block clamping groove 109.

The outer side surface of the grate cover plate is in a semi-cylindrical shape; can prevent that surface rubbish from piling up, and difficult scaling loss and wearing and tearing, two gussets that the medial surface was equipped with set up the through-hole on every gusset, set up the gusset and can make things convenient for the casting to prevent to warp.

The bottom of the grate cover plate bracket is I-shaped and can be inserted into a cavity formed by the side grate blocks and the supporting beams, and the side grate blocks and the supporting beams form clamping grooves which can fix the upper position and the lower position of the grate cover plate bracket. The grate cover plate bracket is provided with a clamping plate which is matched with a rib plate on the lower side surface of the side grate block to be installed with a positioning bracket. The direction of two hooks arranged on the bracket is opposite to the advancing direction of the garbage, and the hooks are matched with through holes on the grate cover plate rib plate for installation.

An L-shaped stainless steel plate with one side fixed is arranged between the bottom of the fire grate block and the fire grate supporting beam, and the fixing holes are used with the side fire grate block, so that percolate can be prevented from leaking and corroding the fire grate.

The expansion joint type grate block is formed after the integral combination and fixation and is directly communicated with the air cooling beam, and the cooling air can pass through the inner gap of the grate block and the cavity formed by the stainless steel to achieve the cooling effect.

The installation mode of the invention is that the stainless steel plate 110 fixed on one side is installed firstly, then the fire grate block 102 on the middle side of one side is fixed on the side support beam 101, then the fire grate cover plate bracket 104 is inserted into the inner side of the fire grate block 102 on the middle side, the position is positioned and limited by the clamping plate 105 on the bracket, then the fire grate block 102 on the middle side of the other side is fixed to finish the subsequent assembly of the middle fire grate cover plate 107, and the fire grate cover plate hole 108 is aligned with the bracket hook 106 and slides in.

The experimental implementation effect of the invention is as follows:

hardness HBW	Tensile strength (Nmm2)	The surface temperature can reach DEG C	Internal temperature of the structure	Rate of replacement
					319	618	400	250	0% in 2 years