KR200300352Y1 - The second combustion apparatus for waste matter - Google Patents

Abstract

By uniformly supplying air to the combustion gas generated and discharged during the first combustion of waste in the incinerator, the mixture of combustion gas and air is perfected so that the combustion gas is completely burned in the second combustion process. The present invention relates to a waste secondary combustion device that maximizes secondary combustion heat and efficiently uses it and prevents harmful gases from being released into the atmosphere, thereby causing environmental pollution.

In the waste secondary combustion device of the present invention, a combustion space 31a having an open end is formed in a lateral direction, and a combustion gas inlet 31b is formed on the upper end of the combustion space 31a and the combustion space 31a. In the waste secondary combustion apparatus comprising a main body 31 formed in communication with each other, a burner 32 provided to generate a flame in the longitudinal direction of the combustion space 31a at the end side of the combustion space 31a, The gas divider 33 formed at a position close to the distal end portion of the combustion space 31a of the main body 31 and in which a plurality of gas passages 33a are formed, and outside the main body around the gas divider 33. Installed air chamber 34, and a plurality of air nozzles 35 respectively formed between the air chamber 34 and the plurality of gas passages (33a).

Description

The second combustion apparatus for waste matter

The present invention relates to a combustion device for incineration of various waste materials such as waste synthetic fibers, vinyl, rubber, wood, and more particularly, to uniformly distribute air to the combustion gas generated and discharged during the first combustion process of the waste in the incinerator. By supplying perfect mixing of combustion gas and air, it makes perfect combustion in the process of secondary combustion of combustion gas, and maximizes the secondary heat of combustion and uses it efficiently and harmful gas is discharged to the atmosphere to cause environmental pollution. It relates to a waste secondary combustion device to prevent.

Various wastes such as waste synthetic fiber, vinyl, rubber, wood, etc. are first incinerated in the incinerator, and the incomplete combustion gas generated at this time is secondaryly burned to heat the boiler using this combustion heat to obtain high temperature steam. Is being used.

As shown in FIG. 1, the waste combustion apparatus includes incomplete combustion gas including two incinerators 1 which incinerate wastes first, and harmful substances generated when incinerators incinerate wastes. The secondary combustion device 2 which burns secondaryly, and the boiler 3 which produces steam using the heat of combustion which generate | occur | produces when incomplete combustion is secondary burned in the said secondary combustion device 2 are included.

A burner 1a is installed at the lower portion of the incinerator 1, and light oil of the diesel oil tank 4 is supplied to the burner 1a. In addition, air is supplied to the incinerator 1 by the blower 5.

The combustion gas generated when the secondary combustion device 2 is combusted is dust and harmful substances are filtered out by a cyclone, a dust collector, etc., and are discharged into the atmosphere. Supplied in place.

As shown in FIG. 2, the secondary combustion device 2 of the combustion device configured as described above has a main body 21 having a combustion space 21a formed in the transverse direction at the center thereof, and an upper portion of the main body 21. Combustion gas inlet 22 formed in communication with the end of the combustion space 21a, and burner 23 provided to generate a flame in the longitudinal direction of the combustion space 21a at the end of the combustion space 21a. ), A plurality of air nozzles 21b formed to discharge air in the flame direction of the burner 23 to the main body 21 at the end of the combustion space 21a, and air to the plurality of air nozzles 21b. It consists of an air inlet 21c for transmitting and a blower 24 for supplying air to the air inlet 21c.

The incomplete combustion gas generated in the incinerator 1 flows into the combustion space 21a through the combustion gas inlet 22, and the air flows into the combustion space 21a through the plurality of air nozzles 22b and the combustion gas and Mix. Since the burner 23 generates a flame, the combustion gas mixed with the air by the flame burns in the combustion space 21a and the inside of the boiler 3, thereby heating the boiler 3.

However, since the combustion gas is introduced in the vertical direction from the upper side of the combustion space 21a in the lateral direction and the air is introduced in the transverse direction from the side of the combustion space 21a, there is a problem in that combustion gas and air are not completely mixed. . In other words, all combustion gases must be mixed with air, but only some combustion gases contain air and some combustion gases do not contain air. Therefore, when the combustion gas is secondarily burned, the harmful substances are not completely burned, and some harmful substances remain unburned.

Therefore, the heat of combustion in the secondary combustion process is not so high that not only can not efficiently heat the boiler, but also has a problem that harmful substances are discharged into the atmosphere to pollute the environment.

The present invention is devised to solve the above-mentioned problems of the prior art, and an object of the present invention is to uniformly mix the incomplete combustion gas and air to be secondarily combusted to completely burn the incomplete combustion gas, thereby maximizing the heat of combustion. The present invention provides a waste secondary combustion device that efficiently uses and prevents environmental pollution by preventing harmful substances from being contained in the exhaust gas discharged to the atmosphere.

In the waste secondary combustion apparatus of the present invention for achieving the above object, a main body having a combustion space having a front end opened in a lateral direction and a combustion gas inlet formed in communication with the combustion space above the end of the combustion space And a burner installed at the end side of the combustion space to generate a flame in the longitudinal direction of the combustion space, the secondary combustion device comprising: a plurality of gas passages configured at a position close to the front end of the combustion space of the main body; A gas divider formed to divide and flow the combustion gas flowing through the combustion space, an air chamber installed outside the body around the gas divider, and a plurality of air nozzles respectively formed between the air chamber and the plurality of gas passages; Consists of.

1 is a block diagram of a conventional waste combustion apparatus,

2 is a cross-sectional view of a secondary combustion device and a boiler configured in a conventional waste combustion device,

3 is a block diagram of a waste combustion apparatus configured as a waste secondary combustion apparatus of the present invention,

4 is a cross-sectional view of the waste secondary combustion device of the present invention,

5A to 5C are cross-sectional views of a gas splitter and an air chamber showing the configuration of a gas passage and an air nozzle which are components of the present invention.

<Code Description of Main Parts of Drawing>

1: incinerator 1a: burner

2: secondary combustion apparatus 3: boiler

4: diesel tank 5: blower

6: steam header 11: incinerator

13: boiler 15, 15 ': blower

15a: Airbox 16: Steam header

17: Ignition burner 18: Diesel tank

18a; Pump

30: secondary combustion device 31: main body

31a: combustion space 31b: combustion gas inlet

31aa: gas chamber 32: (preheater) burner

33: gas division 33a: gas passage

34: air chamber 34a: guide wing

35: air nozzle 36: ignition burner

Hereinafter, the configuration and operation of embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a block diagram of the waste combustion apparatus is configured waste secondary combustion apparatus of the present invention, Figure 4 is a cross-sectional view of the waste secondary combustion apparatus of the present invention, Figures 5a to 5c is a gas passage which is a component of the present invention and It is sectional drawing of the gas division part and air chamber which show the structure of an air nozzle.

As shown in FIG. 4, in the waste secondary combustion device 30 of the present invention, a combustion space 31a having an open end is formed in a transverse direction and combustion gas is introduced into an upper end of the combustion space 31a. The main body 31 in which the part 31b is formed in communication with the combustion space 31a, and the burner 32 provided in the longitudinal direction of the combustion space 31a at the end side of the said combustion space 31a is provided. And a gas divider 33 formed at a position close to the distal end portion of the combustion space 31a of the main body 31 and in which a plurality of gas passages 33a are formed, and the outside of the main body around the gas divider 33. It includes an air chamber 34 installed in, and a plurality of air nozzles 35 respectively formed between the air chamber 34 and the plurality of gas passages (33a).

The main body 31 and the gas dividing part 33 are integrally formed and comprised with the heat insulating material. The cross section of the combustion space 31a of the main body 31 is formed in a circular shape, and the end portion thereof has a diameter larger than that of the tip portion to form a gas chamber 31aa in which combustion gas temporarily stays.

The burner 32 installed at the end of the combustion space 31a is installed to preheat the combustion apparatus.

The plurality of gas passages 33a of the gas dividing portion 33 are arranged to be spaced apart from each other by a predetermined distance so as to flow the gas evenly as shown in FIGS. 5A to 5C. It is desirable to place four at a certain angle apart.

On the outer surface of the main body 31 inside the air chamber 34, a plurality of guide vanes 34a are formed at regular intervals. The guide vane 34a is for allowing the air introduced into the air chamber 34 to flow uniformly through the gas passages 33a through the plurality of air nozzles 35 in a state filled with the air chamber 34.

A plurality of air nozzles 35 are connected to one gas passage 33a, in order to uniformly inject air into the combustion gas flowing through the gas passage 33a to perfectly mix the combustion gas and the air. In the present invention, as shown in FIGS. 5A to 5C, six air nozzles 35 are uniformly connected to one gas passage 33a.

Each of the air nozzles 35 is formed to be inclined forwardly at an angle of 45 degrees so that air is smoothly mixed with the gas flowing through the gas passage 33a.

FIG. 5A shows a state in which the air nozzle 35 is in communication with the gas passages formed at the upper and lower portions of the five gas passages 33a, and FIG. 5B shows the air nozzle 35 communicating with the gas passages on the left and right sides. 5C shows a state in which the air nozzle 35 is in communication with the gas passage in the center.

The communication between each gas passage 33a and the air nozzle 35 is sequentially communicated from the upstream side to the downstream side of the gas dividing section 33. First, the air nozzle 35 is connected to the upper and lower gas passages 33a. Next, the air nozzle 35 communicates with the left and right gas passages 33a, and finally the air nozzle 35 communicates with the central gas passage 33a.

The main body 31 on the upstream side of the gas dividing section 33 is provided with an ignition burner 36 inclined so that the flames are directed toward the end center of the gas dividing section 33. The ignition burner 36 is ignited at a time when natural ignition of the combustion gas is difficult.

Waste secondary combustion apparatus of the present invention configured as described above acts as follows.

As shown in FIG. 3, the waste secondary combustion device 30 of the present invention completely burns incomplete combustion gas generated when primary wastes are incinerated in two incinerators 11, and burns combustion heat generated at this time. The boiler 13 is heated to obtain hot steam. The incinerator 11 supplies air from the blower 15 via the air box 15a and is ignited by two ignition burners 17.

The air chamber 34 of the secondary combustion device 30 of the present invention supplies air from a separate blower 15 ', and the ignition burners 17 and the secondary combustion device 30 of the incinerator 11 are supplied. The burners 32 and 36 are supplied with the gas oil of the gas oil tank 18 by the pump 18a.

Steam generated by heating the boiler 13 by the combustion heat of the secondary combustion device 30 enters the steam header 16 and is supplied to a required place.

Secondary combustion device 30 of the present invention acts as follows.

First, the preheat burner 32 installed at the end of the combustion space 31a is operated to preheat the combustion space 31a, which is preheated until the temperature at the right end of the boiler 13 becomes 850 ° C. When the temperature of the combustion space 31a is preheated to a predetermined level, the incomplete combustion gas generated by first burning the waste in the incinerator 11 is gas chamber 31aa of the combustion space 31a through the combustion gas inlet 31b. Inflow).

The introduced combustion gas flows evenly divided into the plurality of gas passages 33a of the gas dividing unit 33, and at the same time, the air supplied by the blower 15 ′ passes through the air chamber 34 and the air nozzle 35. Through the mixing with the combustion gas of the gas passage (33a).

At this time, since the air flows into the air nozzles 35 after all the spaces in the air chambers 34 are uniformly filled in the air chambers 34 by the guide vanes 34a, the air flows through the respective air nozzles 35. The quantity becomes constant, and the plurality of air nozzles 35 form an angle of 45 ° with the gas passages 33a, respectively, and six air nozzles 35 are connected in all directions of each gas passage 33a, so that the gas cylinders In the furnace 33a, air and combustion gas are mixed quickly and completely.

The mixed gas of air and combustion gas is ignited by the ignition burner 36 and starts combustion while exiting the gas passage 33a and is completely combusted in the boiler 13.

In this way, the combustion gas flows divided into a plurality of gas passages 33a and air is mixed by a plurality of air nozzles 35 connected to each gas passage 33a so that the combustion gas is perfectly mixed with the combustion gas. This greatly increases the combustion efficiency of the combustion gas, and accordingly the harmful substances contained in the combustion gas are completely burned, and the amount of heat generated by the combustion increases, thereby heating the boiler 13 intensely.

Exhaust gas generated in the secondary combustion device 30 is discharged to the atmosphere through a cyclone, a dust collector, and the like, which are not shown.

As described above, the waste secondary combustion apparatus of the present invention maximizes the heat of combustion by completely burning the incomplete combustion gas by uniformly and perfectly mixing the incomplete combustion gas and air to be secondarily burned to efficiently use the combustion heat. In addition, it prevents environmental pollution by preventing harmful substances from being included in the exhaust gas discharged into the atmosphere.

Although the present invention has been described in detail only with respect to the embodiments described, it will be apparent to those skilled in the art that the present invention may be modified or changed within the spirit and scope of the present invention, and such modifications and changes are included in the appended claims of utility model registration. something to do.

Claims (3)

The main body 31 in which the combustion space 31a which the front part opened is formed in the horizontal direction, and the combustion gas inlet part 31b is formed in communication with the combustion space 31a on the upper end of the said combustion space 31a. In the waste secondary combustion device comprising a burner (32) installed on the end side of the combustion space (31a) to generate a flame in the longitudinal direction of the combustion space (31a), A gas dividing portion 33 formed at a position close to the distal end portion of the combustion space 31a of the main body 31 and in which a plurality of gas passages 33a are formed; An air chamber 34 installed outside the main body around the gas division 33, and And a plurality of air nozzles (35) each formed between the air chamber (34) and the plurality of gas passages (33a). The waste secondary combustion apparatus according to claim 1, wherein each of the gas passages (33a) of the gas dividing portion (33) and the plurality of air nozzles (35) communicated with each other are formed at an angle of 45 degrees. 2. The ignition burner 36 is inclined in the main body 31 on the upstream side of the gas dividing part 33 so that the flame is directed toward the end center of the gas dividing part 33. Waste secondary combustion device.