A garbage incineration grate furnace equipment

Abstract

The present application relates to a garbage incineration grate furnace device, belonging to the technical field of garbage incineration, which includes a furnace body, a charging port is provided on the furnace body, a smoke outlet is provided on the side of the furnace body away from the charging port, the smoke outlet is located above the furnace body, a first furnace arch and a second furnace arch are provided on the furnace body, the first furnace arch and the second furnace arch are both vertically arranged, the first furnace arch and the furnace body inner wall near the charging port form a first chamber, the first furnace arch and the second furnace arch form a second chamber, the second furnace arch and the furnace body inner wall near the smoke outlet form a third chamber, and the first chamber, the second chamber and the third chamber are mutually connected. The present application has the effect of pre-drying garbage and intercepting flue gas particles.

Description

Technical Field

[0001] The present application relates to the technical field of waste incineration, and in particular to a waste incineration grate furnace device. Background Art

[0002] Domestic waste treatment is an important part of urban management and environmental protection, an important symbol of social civilization, and is related to the vital interests of the people. In the past decade, due to the rapid development of urbanization, domestic waste has increased sharply, so it is urgent to develop incineration equipment that can make waste harmless, reduce the amount of waste, and recycle it.

[0003] At present, the structure of domestic waste grate furnace is composed of feeding device, grate, furnace arch, hydraulic system, etc. Among them, the reasonable design of the furnace arch plays a vital role in the whole treatment system. It affects the degree of waste incineration reduction and the direction of flue gas to a certain extent, and has an important influence on the temperature control in the furnace.

[0004] The relevant furnace arches are arranged horizontally or at a certain angle, which can handle most of the domestic waste. However, for domestic waste in the northwest, the water content of the waste is high; at the same time, domestic waste in the northern region contains a large amount of slag, which greatly affects the calorific value of the waste, and the waste is not completely incinerated, resulting in substandard flue gas. Utility Model Content

[0005] In order to improve the treatment effect of the waste incineration grate equipment, the present application provides a waste incineration grate equipment.

[0006] The present application provides a garbage incineration grate furnace device adopts the following technical solution:

[0007] A garbage incineration grate furnace device comprises a furnace body, a charging port is provided on the furnace body, a smoke outlet is provided on a side of the furnace body away from the charging port, the smoke outlet is located above the furnace body, a first furnace arch and a second furnace arch are provided on the furnace body, the first furnace arch and the second furnace arch are both vertically arranged, the first furnace arch and the inner wall of the furnace body near the charging port form a first chamber, a second chamber is formed between the first furnace arch and the second furnace arch, the second furnace arch and the inner wall of the furnace body near the smoke outlet form a third chamber, and the first chamber, the second chamber and the third chamber are interconnected.

[0008] By adopting the above technical scheme, after the garbage enters the furnace body, it is burned in the first chamber. The vertically arranged furnace arch causes the flue gas to move upward along the furnace arch. The particles and dust in the flue gas collide with the top wall of the furnace body, causing the dust to fall quickly. The flue gas passes through the second chamber and the third chamber in turn, and is finally discharged from the flue gas outlet into the subsequent flue gas treatment equipment, which helps to intercept flue gas particles and improve the treatment effect of the flue gas generated during garbage incineration.

[0009] Optionally, a side of the inner wall of the furnace body close to the charging port is provided with an inclined furnace wall, and the inclined furnace wall gradually inclines upward from the side close to the charging port to the side away from the charging port.

[0010] By adopting the above technical solution, the setting of the inclined furnace wall is helpful to increase the flue gas flow area, increase the radiant heat per unit time, and can dry the garbage in a short time to increase the calorific value of the garbage.

[0011] Optionally, a guide furnace arch is fixed in the furnace body, and the guide furnace arch is gradually inclined downward from the side close to the feeding port to the side away from the feeding port, and one end of the guide furnace arch is fixed to the first furnace arch, and the other end is fixed to the inner wall of the furnace body.

[0012] By adopting the above technical scheme, the flue gas flows along the guide furnace arch, and the high-temperature flue gas flows back from the combustion area to the drying area, relying on a large amount of radiant heat to dry the garbage just entering the furnace to reduce its moisture content. In addition, the flue gas is guided by the furnace arch, increasing the deflection path, and the flue gas collision causes a large amount of particulate matter and fly ash to be deposited. The particulate matter and dust in the flue gas collides with the furnace top and falls onto the guide furnace arch, and slides to the same side along the inclined surface of the guide furnace arch, which is convenient for subsequent cleaning.

[0013] Optionally, an ash accumulation plate is installed on the upper side of the guide furnace arch, and the ash accumulation plate is located at one end of the guide furnace arch away from the first furnace arch. The side wall of the furnace body is provided with an ash cleaning port for cleaning the dust on the ash accumulation plate.

[0014] By adopting the above technical solution, the dust falling on the guide furnace arch will slide onto the ash accumulation plate, and the ash cleaning port is convenient for the subsequent cleaning of the dust collected on the ash accumulation plate.

[0015] Optionally, an inclined grate is provided in the furnace body, and the grate is located below the first furnace arch and the second furnace arch. An ash outlet for ash discharge is provided on a side of the bottom of the furnace body away from the charging port.

[0016] By adopting the above technical solution, the garbage in the furnace body is moved along the length direction of the grate to the ash outlet, which helps to improve the garbage treatment effect.

[0017] Optionally, the grate includes a drying section and a combustion section, the drying section is located on the side close to the feeding port, and the combustion section is located on the side of the drying section away from the feeding port, and the drying section and the combustion section are gradually inclined downward from the side close to the feeding port to the side away from the feeding port.

[0018] By adopting the above technical solution, after the garbage enters the furnace body, the garbage falling into the drying section can quickly remove moisture through the high-temperature flue gas refluxed from the combustion section, thereby increasing the calorific value of the garbage. The flue gas generated by the incineration in the combustion section is diverted to the drying section under the guidance of the guide furnace arch, and finally flows out from the flue gas outlet, thereby achieving the effect of pre-drying the garbage and intercepting flue gas particles.

[0019] In summary, the present application includes at least one of the following beneficial technical effects:

[0020] 1. The vertically arranged furnace arch makes the flue gas collide multiple times in the three chambers along the furnace arch direction and deposit on the ash accumulation plate. The ash accumulation plate makes the dust fall quickly, reducing the load of subsequent smoke treatment equipment;

[0021] 2. The design of the two-stage grate furnace not only increases the pre-drying of the garbage, but also allows the garbage to be turned over at the alternation of the first and second grate, increasing the internal oxygen supply contact surface and significantly improving the garbage combustion effect;

[0022] 3. The flue gas generated in the combustion section is deflected back to the drying section under the action of the guide furnace arch, which can pre-dry the garbage in the drying section, increase the incineration calorific value, and thus improve the garbage treatment effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the furnace body.

[0024] Figure 2 It is a cross-sectional view of the first furnace arch, the second furnace arch and the furnace body.

[0025] Explanation of the accompanying reference numerals: 1. furnace body; 11. feeding port; 12. flue gas outlet; 13. ash outlet; 14. grate; 141. drying section; 142. combustion section; 15. inclined furnace wall; 16. ash cleaning port; 17. fire viewing port; 2. first furnace arch; 3. second furnace arch; 4. guide furnace arch; 41. ash accumulation plate. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-2 This application is described in further detail.

[0027] The embodiment of the present application discloses a garbage incineration grate furnace device.

[0028] Reference Figure 1 A garbage incineration grate furnace device includes a hollow furnace body 1, a charging port 11 is opened on one side of the furnace body 1, and a smoke outlet 12 is opened on the side of the furnace body 1 away from the charging port 11. The smoke outlet 12 is located on the upper side of the furnace body 1. The smoke generated during the garbage incineration process can eventually be discharged through the smoke outlet 12.

[0029] Reference Figure 2An ash outlet 13 is also provided on one side of the bottom of the furnace body 1 away from the feeding port 11 . The ash outlet 13 is located below the flue gas outlet 12 . The waste residue after incineration can be discharged through the ash outlet 13 .

[0030] A grate 14 is also installed in the furnace body 1. The grate 14 is located between the charging port 11 and the ash outlet 13. The grate 14 is gradually inclined downward from the side close to the charging port 11 to the side away from the charging port 11. The grate 14 includes a drying section 141 and a combustion section 142. The drying section 141 is located on the side of the combustion section 142 close to the charging port 11, and the side of the combustion section 142 away from the drying section 141 is arranged opposite to the ash outlet 13.

[0031] A first furnace arch 2 and a second furnace arch 3 are vertically fixed in the furnace body 1. The first furnace arch 2 and the second furnace arch 3 are parallel to each other and spaced apart. The first furnace arch 2 and the second furnace arch 3 are both located above the grate 14. A first chamber is formed between the first furnace arch 2 and the side wall of the furnace body 1 near the feeding port 11, a second chamber is formed between the first furnace arch 2 and the second furnace arch 3, and a third chamber is formed between the second furnace arch 3 and the side wall of the furnace body 1 near the flue gas outlet 12, and the first chamber, the second chamber and the third chamber are interconnected.

[0032] The inner wall of the furnace body 1 is provided with an inclined furnace wall 15 on one side close to the feeding port 11. The inclined furnace wall 15 is arranged opposite to the first furnace arch 2, and the inclined furnace wall 15 gradually inclines upward from the side close to the feeding port 11 to the side away from the feeding port 11. The inclination angle of the inclined furnace wall 15 is 45°, which helps to increase the reflow area of ​​the flue gas, improve the drying effect of the garbage in the drying section 141, and improve the incineration calorific value.

[0033] Reference Figure 2 The furnace body 1 is also fixed with a guide furnace arch 4, which is tilted above the combustion section 142, one end of the guide furnace arch 4 is fixed to the lower end of the first furnace arch 2, and the other end is fixed to the inner wall of the furnace body 1, and the guide furnace arch 4 is gradually tilted downward from the end close to the first furnace arch 2 to the end away from the first furnace arch 2, and an ash accumulation plate 41 is also installed on the upper side of the guide furnace arch 4, the ash accumulation plate 41 is located on the side of the guide furnace arch 4 away from the first furnace arch 2, and the ash accumulation plate 41 is a triangular prism. The side wall of the furnace body 1 is also provided with an ash cleaning port 16, which is located on the upper side of the ash outlet 13, the ash cleaning port 16 is opposite to the position of the ash accumulation plate 41, and the upper surface of the ash accumulation plate 41 is kept flush with the ash cleaning port 16, so as to facilitate the subsequent cleaning of dust on the ash accumulation plate 41 from the ash cleaning port 16.

[0034] A fire viewing port 17 is provided on the side wall of the furnace body 1 and is located below the ash cleaning port 16. The burning of garbage on the grate 14 can be observed through the fire viewing port 17. When the burning process is in progress, the fire viewing port 17 is in a closed state to prevent smoke from being discharged from the fire viewing port 17.

[0035] The implementation principle of a garbage incineration grate furnace device in the embodiment of the present application is:

[0036] After the garbage enters the furnace body 1, it will enter the drying section 141 and the combustion section 142 in turn. When the garbage is burned in the first chamber, the high-temperature flue gas of the combustion section 142 will flow back to the drying section 141, which will pre-dry the garbage in the drying section 141. The high-temperature flue gas will continue to move upward along the first furnace arch 2, passing through the first chamber, the second chamber and the third chamber in turn. During the reciprocating process, the particulate matter and dust in the flue gas will be removed and discharged from the flue gas outlet 12, reducing the load of subsequent equipment on smoke and dust treatment; the dust falling on the guide furnace arch 4 will fall to the ash accumulation plate 41, which is convenient for subsequent dust cleaning, thereby achieving the effect of pre-drying the garbage in the furnace body 1 and intercepting flue gas particulate matter.

[0037] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A garbage incineration grate furnace device, comprising a furnace body (1), characterized in that: The furnace body (1) is provided with a charging port (11), a side of the furnace body (1) away from the charging port (11) is provided with a smoke outlet (12), the smoke outlet (12) is located above the furnace body (1), the furnace body (1) is provided with a first furnace arch (2) and a second furnace arch (3), the first furnace arch (2) and the second furnace arch (3) are both arranged vertically, the first furnace arch (2) and the inner wall of the furnace body (1) near the charging port (11) form a first chamber, the first furnace arch (2) and the second furnace arch (3) form a second chamber, the second furnace arch (3) and the inner wall of the furnace body (1) near the smoke outlet (12) form a third chamber, and the first chamber, the second chamber and the third chamber are interconnected.

2. The garbage incineration grate furnace equipment according to claim 1, characterized in that: The inner wall of the furnace body (1) is provided with an inclined furnace wall (15) on a side close to the charging port (11), and the inclined furnace wall (15) gradually inclines upward from a side close to the charging port (11) to a side away from the charging port (11).

3. The garbage incineration grate furnace equipment according to claim 1, characterized in that: A flow guide furnace arch (4) is also fixed in the furnace body (1), and the flow guide furnace arch (4) is arranged to be gradually inclined downward from a side close to the charging port (11) to a side away from the charging port (11), and one end of the flow guide furnace arch (4) is fixed to the first furnace arch (2), and the other end is fixed to the inner wall of the furnace body (1).

4. The garbage incineration grate furnace equipment according to claim 3, characterized in that: An ash accumulation plate (41) is installed on the upper side of the guide furnace arch (4), and the ash accumulation plate (41) is located at one end of the guide furnace arch (4) away from the first furnace arch (2). A ash cleaning port (16) is provided on the side wall of the furnace body (1) for conveniently cleaning dust on the ash accumulation plate (41).

5. The garbage incineration grate furnace equipment according to claim 1, characterized in that: The furnace body (1) is provided with an inclined grate (14), the grate (14) being located below the first furnace arch (2) and the second furnace arch (3), and an ash outlet (13) for ash discharge is provided on a side of the bottom of the furnace body (1) away from the charging port (11).

6. The garbage incineration grate furnace equipment according to claim 5, characterized in that: The grate (14) comprises a drying section (141) and a combustion section (142); the drying section (141) is located on a side close to the feeding port (11), and the combustion section (142) is located on a side of the drying section (141) away from the feeding port (11); and both the drying section (141) and the combustion section (142) are arranged to be gradually inclined downward from a side close to the feeding port (11) to a side away from the feeding port (11).

Images