阅读说明：本技术 一种生活垃圾烟气的二次燃烧室 (Secondary combustion chamber for household garbage flue gas ) 是由 张德 李鹏 于 2019-10-31 设计创作，主要内容包括：本发明公开了一种生活垃圾烟气的二次燃烧室,包括保温密封罩法兰、预热锥形罩、保温密封罩、耐火保温材料、二燃室腔体、外部壳体、炉门、炉腿、度进风炉栅、除灰器、除渣机、憋烟道和多孔高温蓄热体,所述炉腿固定设置在外部壳体的底部,且炉腿的下端分别固定连接有预埋连接板,所述耐火保温材料设置在外部壳体的顶侧,炉门开设在外部壳体的底部一侧,所述二燃室腔体设置在外部壳体的内侧,二燃室腔体的烟气出口处为文丘里喉管结构。本发明保证了进入二燃室烟气温度稳定在着火点温度,燃烧更稳定,使得二次燃烧室燃烧时不需要额外添加助燃器,同时,便于灰尘清理,不容易烟道堵塞。(The invention discloses a secondary combustion chamber for household garbage flue gas, which comprises a heat-insulating sealing cover flange, a preheating conical cover, a heat-insulating sealing cover, a fireproof heat-insulating material, a secondary combustion chamber cavity, an outer shell, a furnace door, furnace legs, an air intake grate, an ash remover, a slag remover, a suppressed flue and a porous high-temperature heat accumulator, wherein the furnace legs are fixedly arranged at the bottom of the outer shell, the lower ends of the furnace legs are respectively and fixedly connected with an embedded connecting plate, the fireproof heat-insulating material is arranged on the top side of the outer shell, the furnace door is arranged on one side of the bottom of the outer shell, the secondary combustion chamber cavity is arranged on the inner side of the outer shell, and a flue gas outlet of the secondary combustion chamber cavity is. The invention ensures that the temperature of the flue gas entering the secondary combustion chamber is stabilized at the ignition temperature, the combustion is more stable, so that an additional combustion-supporting device is not needed during the combustion of the secondary combustion chamber, and meanwhile, the secondary combustion chamber is convenient for dust cleaning and is not easy to block a flue.)

1. A secondary combustion chamber for household garbage flue gas comprises a heat-insulating sealing cover flange (1), a preheating conical cover (2), a heat-insulating sealing cover (3), a fireproof heat-insulating material (4), a secondary combustion chamber cavity (5), an external shell (6), a furnace door (7), furnace legs (8), a 360-degree air inlet grate (10), an ash remover (11), a slag remover (12), a suppressed flue (13) and a porous high-temperature heat accumulator (14), and is characterized in that the furnace legs (8) are fixedly arranged at the bottom of the external shell (6), the lower ends of the furnace legs (8) are respectively and fixedly connected with a pre-embedded connecting plate (9), the fireproof heat-insulating material (4) is arranged at the top side of the external shell (6), the furnace door (7) is arranged at one side of the bottom of the external shell (6), the secondary combustion chamber cavity (5) is arranged at the inner side of the external shell (6), and a flue gas outlet of the secondary combustion chamber cavity (5) is of a, the 360-degree air inlet grate (10) is arranged at the surrounding center of the cavity of the secondary combustion chamber (5), the 360-degree air inlet grate (10) adopts a rotary mountain-shaped structure, the cross section of the 360-degree air inlet grate is a square cavity, an ash basin chassis (15) is arranged at the bottom of the inner side of the bottom of the outer shell (6), a fixing frame of the 360-degree air inlet grate (10) is arranged at the top side of the ash basin chassis (15), a reverse stirring device (16) is arranged at the top of the grate, an ash remover (11) is arranged at the bottom of the ash basin chassis (15), the bottom of the ash remover (11) is connected with a slag remover (12), the outer surface of the preheating conical cover (2) is poured by refractory materials, the inner surface is a steel smooth surface, the heat preservation sealing cover (3) is of a conical structure and is arranged above the preheating conical cover (2), a heat preservation sealing cover flange (1) is arranged at the top end of the heat preservation sealing cover (3), and the suppressed flue (13) is, the upper part of the secondary combustion chamber cavity (5) is provided with a flue gas inlet which is arranged at the bottom of the hold-back flue (13) in 360-degree equal distribution.

2. The secondary combustion chamber for the flue gas of the household garbage according to claim 1, characterized in that: the bottom of the hold-back flue (13) adopts a flow-resisting air hole flange, and a porous high-temperature heat accumulator (14) is placed on the flange.

3. The secondary combustion chamber for the flue gas of the household garbage according to claim 1, characterized in that: the preheating conical cover (2) is of a conical structure, six oxygen supplementing openings are uniformly formed in the periphery of the conical cover, and oxygen is provided for secondary combustion.

4. The secondary combustion chamber for the flue gas of the household garbage according to claim 1, characterized in that: a guide plate and an ash blocking disc are arranged at a smoke inlet of the secondary combustion chamber cavity (5), and smoke rotates to enter the secondary combustion chamber cavity through the rotating holding flue (13).

5. The secondary combustion chamber for the flue gas of the household garbage according to claim 1, characterized in that: the slag remover (12) adopts a water seal structure, the slag remover (12) adopts a wet method to remove slag, and a lower return chain type removes slag.

Technical Field

The invention relates to the technical field, in particular to a secondary combustion chamber for household garbage flue gas.

Background

The secondary combustion chamber is a device for decomposing harmful gas and burning tar at high temperature in the field of incineration and pyrolysis of garbage and sludge, fully decomposes harmful components in incineration and pyrolysis smoke, particularly dioxin harmful substances, through the control of high temperature and residence time, the secondary combustion is an indispensable condition, most working conditions of the secondary combustion of the smoke at present need to add a combustion-supporting device, or the residence time is insufficient, and the secondary combustion technology has a part to be improved and optimized.

Disclosure of Invention

The invention aims to solve the defects in the prior art and provides a secondary combustion chamber for household garbage flue gas.

In order to achieve the purpose, the invention adopts the following technical scheme:

a secondary combustion chamber for household garbage flue gas comprises a heat-insulating sealing cover flange, a preheating conical cover, a heat-insulating sealing cover, a fireproof heat-insulating material, a secondary combustion chamber cavity, an outer shell, a furnace door, furnace legs, an air intake grate, a dust remover, a slag remover, a suppressed flue and a porous high-temperature heat accumulator, wherein the furnace legs are fixedly arranged at the bottom of the outer shell, the lower ends of the furnace legs are respectively and fixedly connected with embedded connecting plates, the fireproof heat-insulating material is arranged on the top side of the outer shell, the furnace door is arranged on one side of the bottom of the outer shell, the secondary combustion chamber cavity is arranged on the inner side of the outer shell, a flue gas outlet of the secondary combustion chamber cavity is of a Venturi throat structure, the air intake grate is arranged at the surrounding center of the secondary combustion chamber cavity, the air intake grate adopts a rotary mountain-shaped structure, the cross section of the air intake grate is a square cavity, and the air inlet grate mount of degree is established in the top side of ash basin chassis, and the grate top has reverse group material device, and the ash remover sets up in the bottom of ash basin chassis, and the bottom and the slagging-off machine of ash remover are connected, preheat the conical cover surface and pour by refractory material and form, the internal surface is the steel plain noodles, and the heat preservation sealed cowling is the toper structure, arranges in preheating the conical cover top, and the heat preservation sealed cowling flange sets up the top at the heat preservation sealed cowling, the flue of holding back sets up at the top of combustion chamber cavity, and second combustion chamber cavity upper portion is equipped with the flue gas import, and the flue gas import is the degree partition and arranges in holding back the flue bottom.

Preferably, the bottom of the hold-down flue adopts a flow-blocking air hole flange, and the porous high-temperature heat accumulator is placed on the flange.

Preferably, the preheating conical cover is of a conical structure, six oxygen supplementing openings are uniformly formed in the periphery of the conical cover, and oxygen is provided for secondary combustion.

Preferably, the flue gas inlet of the secondary combustion chamber cavity is provided with a guide plate and an ash blocking disc, and the flue gas enters the secondary combustion chamber cavity in a rotating mode through the rotating blocking flue.

Preferably, the slag remover adopts a water seal structure, and the slag remover adopts wet-method slag removal and lower-return chain type slag removal.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the flue, the conical heat accumulator device, the flue gas flow-blocking flange and the preheating conical cover are arranged in the secondary combustion chamber, so that the temperature of the flue gas entering the secondary combustion chamber is stable at the ignition temperature, and the combustion is more stable;

2. according to the invention, through the application of the conical heat accumulator material in the secondary combustion chamber, the special structure of the flue is suppressed, so that an additional combustion-supporting device is not required to be added during combustion in the secondary combustion chamber;

3. the secondary combustion chamber is of a spiral rotating structure, dust in smoke is accumulated at the lower outlet in a concentrated mode, dust is convenient to clean, and a flue is not easy to block.

Drawings

FIG. 1 is a schematic sectional view of a secondary combustion chamber for domestic garbage flue gas according to the present invention;

FIG. 2 is a schematic view of the overall structure of a secondary combustion chamber cavity of a secondary combustion chamber for domestic garbage flue gas, which is provided by the invention;

FIG. 3 is a schematic structural diagram of a smoke-retaining duct of a secondary combustion chamber for domestic garbage flue gas, which is provided by the invention;

fig. 4 is a schematic structural view of a 360-degree air inlet grate of a secondary combustion chamber for domestic garbage flue gas provided by the invention.

In the figure: the device comprises a heat-insulation sealing cover flange 1, a preheating conical cover 2, a heat-insulation sealing cover 3, a refractory heat-insulation material 4, a secondary chamber cavity 5, an external shell 6, a furnace door 7, furnace legs 8, a pre-embedded connecting plate 9, a 360-degree air inlet furnace grate 10, an ash remover 11, a slag remover 12, a suppressed flue 13, a porous high-temperature heat accumulator 14, an ash basin chassis 15 and a reverse stirring device 16.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.