KR200471741Y1 - Fire grate unit for use in the incineration furnace - Google Patents

Abstract

The present invention relates to a grate unit for an incinerator formed to facilitate the discharge of the incineration ash from the incinerator installation, and easy to manufacture and assemble, the first base portion for providing a seating area for the incineration object is seated, and the first A first bearing portion formed at one side end side of the base portion and coupled to an axis for conveying or fixing, integrally formed at the other end portion of the first base portion, and having a relatively wider width than the width of the first base portion; A first grating having a scraper portion and first skirt portions formed on both sides of a lower surface of the first base portion in a longitudinal direction, and being stepped so as to be stepped up from the bearing portion to the first scraper portion; A second base portion provided adjacent to the grate and providing a seating area in which the incineration object can be seated, and one side end side of the second base portion; A second bearing part formed at a surface side and coupled to a shaft for conveying or fixing, a second scraper part integrally formed at the other end of the second base part and having a width relatively wider than the width of the second base part; And a second grating having second skirt portions formed on both sides of the lower surface of the second base portion in the longitudinal direction and being stepped up from the bearing portion to the second scraper portion.

Description

Fire grate unit for use in the incineration furnace}

The present invention relates to an incinerator, and more particularly, to an incinerator grate unit for facilitating the discharge of incinerator ash in an incinerator installation and smoothly supplying air for combustion.

Recently, due to environmental pollution, incineration methods are mainly used for incineration of landfills, which have been disposed of in the past as a method of treating household and industrial wastes.

Wastes such as municipal waste are put into the incinerator, and then dried, burned, and burned in a stoka-type conveying apparatus including heat / wear-resistant metal grate disposed on the lower side of the incinerator.

Conventional grate constituting such a stoka-type conveying apparatus is used as a means for transporting or supporting incineration, etc. generated during combustion, the upper wall and left and right of the main body, as published in Korea Utility Model Publication No. 20-0427802 The upper wall and the left and right sides are formed at the same time as the flow path of the combustion gas is formed by the lower space partitioned by both side walls.

The front end wall extended to the side wall is provided with an opening for supplying the combustion gas supplied through the flow path of the combustion gas into the incineration chamber, and the rear end wall is provided with a mounting groove fastened to the supporting rod of the conveying apparatus. The grate constitutes a stepwise incineration treatment table of the conveying apparatus by disposing a plurality of grate rows formed in parallel in a width direction at the bottom of the incineration chamber in the front-rear direction. One of the grate rows is mounted on the fixed frame of the conveying device to form a fixed grate row, and the other adjacent grate rows are mounted on the movable frame of the conveying device to form a moving grate row. Alternately, the movable frames are reciprocated in the horizontal direction forward and backward by a reciprocating means (not shown) provided in the conveying apparatus so that the lower end and the upper end of the shear wall of both grate rows reciprocate.

Accordingly, the garbage or its combustion products loaded into the grate row is pressurized by the shear wall of the grate and transported in the conveying direction.

However, the conventional grate has a problem that the opening for supplying the combustion gas is formed in the front end of the grate can not supply the combustion gas to the waste incinerated smoothly. In addition, the grate has a structure in which one side end is supported by the support shaft of the transfer means to reciprocate, but does not have a structure associated with each other.

In particular, since the opening for supplying the combustion gas is formed at the front end surface side, the opening is blocked by the waste, incineration products such as clinker, and the incineration ash, which are incinerated when the movable grating moves with respect to the fixed grating, so that the gas for combustion is incinerated. There is a problem that can not be smoothly supplied to the inside.

Patent No. 10-0658400: Grate structure for incinerator Patent No. 10-0817323: Grate for incinerator Utility Model No. 20-0427802 Grate structure for incinerator

The present invention is to solve the above problems, can be combined with each other organically to improve the reliability of the transfer, the combustion grate unit for the incinerator to improve the combustion efficiency of the waste to make the supply of the combustion gas smoothly The purpose is to provide.

Another object of the present invention is to provide a grate unit for an incinerator capable of maintaining a constant gap between grate bodies arranged side by side.

The grate unit for an incinerator according to the present invention for achieving the above object is formed on the lower surface side of the first base portion and one side end of the first base portion for providing a seating area on which the incineration object can be seated for transport or fixing A first scraper portion coupled to the shaft, a first scraper portion integrally formed at the other end of the first base portion, and having a width relatively wider than the width of the first base portion, and a length at both sides of the bottom surface of the first base portion; A first skirt portion formed in a direction and stepped to increase stepwise from the bearing portion to the first scraper portion, and for smoothly discharging gas to the first skirt portions adjacent to the first scraper portion. On the side of the side in which the first inlet portion is formed, and the axial coupling hole is formed in the first skirt portion on the side of the bearing portion adjacent to the first inlet portion and adjacent to the first scraper portion. Two first gas discharge holes are formed on the upper surface of the first base part in parallel to each other in the longitudinal direction, and the first skirt portion on the side adjacent to the first inlet portion and the first skirt portion around the axial coupling hole, respectively. The first grate formed with the first and second interval holding projections,

Being installed adjacent to the first grate, the second base portion for providing a seating area for the incineration object can be seated, and formed on the lower surface side of one end of the second base portion is coupled to the axis for transport or fixing A second scraper portion, a second scraper portion formed integrally with the other end portion of the second base portion and having a width relatively wider than the width of the second base portion, and formed on both sides of the lower surface of the second base portion in the longitudinal direction; And second skirt portions that are formed stepped so as to be stepped up from the bearing portion to the second scraper portion side, and a second inlet portion for smoothly discharging gas to the second skirt portions adjacent to the second scraper portion. And a coupling shaft coupled to the shaft coupling hole on the second skirt portion of the side adjacent to the second inlet portion, and the second bay of the side adjacent to the second scraper portion. Two second gas discharge holes are formed on the upper surface side by side in the longitudinal direction, and the second skirt portion on the side adjacent to the second inlet portion and the second skirt portion around the axial coupling hole are formed on the first skirt portion. And a second grating formed with third and fourth interval holding protrusions contacting the second interval holding protrusions.

In the present invention, the forming density of the first rib formed between the first skirt portion of the first grating lower than the height of the first skirt portion increases from the first bearing portion to the first scraper portion, and discharges the first gas. A first combustion gas distribution rib for the combustion gas distribution is formed between the holes.

The forming density of the third ribs formed between the second skirt portions of the second grating is lower than the height of the second skirt portion increases from the second bearing portion to the second scraper portion, and between the second gas discharge holes. A second gas distribution rib for the combustion gas distribution is formed.

The incinerator grate unit according to the present invention can improve the incineration efficiency by allowing the combustion gas discharge to the incinerator side smoothly, and the first and second grate is composed of a single body structure, so maintenance is used.

And the grate unit of the present invention can facilitate the formation of the combustion zone by allowing the combustion gas to be discharged from each portion of the grate.

1 is a side view schematically showing an incinerator according to the present invention,
2 is a perspective view of the grate unit according to the present invention,
3 is an exploded perspective view illustrating the first and second gratings;
Figure 4 is a perspective view showing the back of the first, second grate,
5 is a rear view of the first grate,
6 is a rear view of the second grate;

The grate unit of the incinerator according to the present invention allows the supply of combustion gas to occur smoothly, and can increase the coupling force of the grate. An embodiment thereof is illustrated in FIGS. 1 to 4.

Referring to the drawings, the incinerator is provided with a grate unit 10 for supporting industrial and environmental waste put into the incinerator, the grate unit 10 is the first and second grate 20, 30 are listed Is done. This grate unit 10 is formed to form a layer in multiple stages as shown in FIG. The base protrudes from the bottom of the incinerator at a certain height, and a transfer member 11 is provided at the upper end of each base to move forward and backward some of the grate units 10 of the grate units 10 stacked in multiple stages. The conveying member 11 is formed to slidably move the upper surface of the base 12, and the first and second gratings are formed on the shaft 14 provided at the end of the support part 13 protruding upward of the conveying member 11. The bearing part of 20) 30 is combined. The conveying member 11 is advanced back and forth by a plurality of hydraulic cylinders 15 installed outside the incinerator.

The grate unit 10 is provided with the first and second grate 20, 30 are alternately coupled in a direction parallel to each other, as shown in Figs.

The first grate 20 supports waste or waste for incineration, and includes a first base portion 21 and a side of the first base portion 21 that provides a seating area on which an incineration object can be seated. A first bearing portion 22 formed at the lower end side of the end and coupled to the shaft 14 for conveying or fixing, and integrally formed at the other end portion of the first base portion 21 and having a first base portion 21. The first scraper portion 23 having a width wider than the width of the first base portion 21, and formed on both sides of the lower surface of the first base portion 21 in the longitudinal direction and from the first bearing portion 22 to the first scraper portion 23 The first skirt portions 24 and 25 are formed to be stepped to step by side. The first base portion 21, the first bearing portion 22, the first scraper portion 23, and the first skirt portion 24, 25 have an integrally formed configuration. The upper surface of the first base portion 21 is the incineration object is seated, the molten incineration object is not accumulated during incineration, is formed in a planar shape for the smooth contact of the scraper portion and the incineration of the grate in contact with the grate. The first scraper portion 23 is formed to be larger than the width of the first base portion 21. Preferably, one side of the first scraper portion 23 is formed to be 2 to 3 mm larger than the width of the first base portion 21. (The entire width of the first scraper portion may be 4 to 6 mm larger than the entire width of the first base portion.)

The first skirt portion 24 and 25 of the first grating 20 is formed with a first lead portion 26 adjacent to the first scraper portion 23 for smooth discharge of combustion gas. Axial coupling holes 27 are formed in the first skirt portions 24 and 25 on the side adjacent to the first grip portion 26 and the first bearing portion 22. Axial coupling hole 27 may be made of a long hole formed in the longitudinal direction.

In the base portion 21, two first gas discharge holes 28 and 28 are formed in a length direction on a smooth surface of the side adjacent to the first skirt portion 23. The two first gas discharge holes 28 and 28 are formed in the longitudinal direction on both sides of the longitudinal center of the first base portion 21. The first gas discharge hole 28, 28 is preferably formed in a width of 2 to 3mm so as not to discharge the burned ash.

Ribs 29 are formed between the first skirt portions 24 and 25 supported by the first base portion 21, and the ribs 29 are formed from the first skirt portion 22 from the bearing portion 22 side. The lower the forming distribution is toward 23). The ribs 29 are formed at a height relatively lower than the height of the first skirt portion 23 to form a combustion gas passage. A first gas distribution rib 29a is formed between the two first gas discharge passages 28 and 28 to distribute the combustion gas. The first combustion gas distribution rib 29a forms a combustion gas passage connected to the first skirt portion and the first gas discharge passage 28.

First and second spacing holding protrusions 51 and 52 are formed on both side surfaces of the first base portion 21 and the side surfaces of the first skirt portion and the first base portion 21 around the axial coupling hole 27. Is formed. The protruding height of the second interval holding protrusions 51 and 52 is formed to be 2 to 3 mm from the side surface of the first base portion 21. In the case of 3 mm or more, excessive gas may be discharged, and in the case of 2 mm or less, there is a problem in that the gas is not smoothly discharged because the gap between the first and second gratings is blocked by ash.

On the other hand, the second grate 30 is coupled to the first grate 20 to form a grate unit 10, which is substantially similar to the configuration of the first grate 20.

The second grate 30 is formed on the second base portion 31 which provides a seating area on which the incineration object can be seated, and on the lower surface of one end of the second base portion 31 for transport or fixing. A second bearing portion 32 coupled to the shaft 14 and a second integrally formed at the other end of the second base portion 31 and having a width relatively wider than that of the second base portion 31; The second skirt portion is formed on both sides of the scraper portion 33 and the lower surface of the second base portion 31 in the longitudinal direction, and is formed stepwise so as to be gradually stepped from the bearing portion 31 to the second scraper portion 33 side. 34 and 35. In addition, a second inlet portion 36 is formed in the second skirt portions 34 and 35 on the side adjacent to the second scraper portion 33, and the second inlet portion ( Coupling shafts 37 coupled to the axial coupling holes 27 of the first grating 20 are formed in the second skirt portions 34 and 35 on the side adjacent to 36. The coupling shaft 37 may be formed in an elliptical shape corresponding to the long hole formed in the shaft coupling hole 27 rather than having a circular cross section. In addition, two second gas discharge holes 38 and 38 are formed on the upper surface of the second base part 31 on the side adjacent to the second scraper part 33 in the longitudinal direction. The second skirt portion 24, 25 and the first base portion around the coupling axis of the side of the second base portion 31 adjacent to the bearing portion 32 and the side of the second inlet portion 26 adjacent thereto. Third and fourth interval holding protrusions 53 and 54 are formed at 31 in contact with the first and second interval holding protrusions 51 and 52.

In addition, the forming density of the second ribs 39 formed between the second skirt portions 34 and 35 of the second grating 30 is lower than the height of the second skirt portion from the second bearing portion to the second scraper portion. Higher and higher, a second gas distribution rib 39a for distributing combustion gas is formed between the second gas discharge holes 38 and 38. The height of the first and second gas distribution ribs 29a and 39a is lower than the height of the first and second skirt portions.

Referring to the operation of the incinerator grate unit according to the present invention configured as described above are as follows.

The incinerator in the present invention falls into the grate unit 20 (left side of the drawing) formed at the top when the waste is input through an inlet not shown, and in that state is incinerated by the heat applied from the burner installed on the lower side of the incinerator.

If the trash falling on the top grate unit 10 catches fire, the trash continues to be burned by the volatile substances contained in the trash even after the burner is stopped. By this, industrial and environmental waste is pushed to the next grate unit, and the next upper grate unit is supplied with the following industrial and environmental waste. After a certain period of time after the garbage is moved to the second floor, the uppermost grate unit moves forward by the operation of the hydraulic cylinder and the conveying member 13 to push the rubbish accumulated in the grate unit of the second floor to the third floor. Then, the garbage burning at the top is moved to the grate unit of the second layer by the forward member not shown again. When such a series of processes are repeated, the waste which is almost left by combustion is discharged through an outlet formed at one end of the incinerator through the lower grate unit.

In the process of incineration of the waste as described above, the first grate 20 and the second grate 30 forming the grate unit 10 are first gas discharge holes 28 and 28 formed in the longitudinal direction on the upper surface thereof. Since the two gas discharge holes 38 and 38 are formed, the air supplied from the lower side is smoothly supplied to the waste to be incinerated. In particular, since the first and second gas distribution ribs 29a and 39a are formed between the first and second gas discharge holes 28, 28, 38, and 38, two first gases on one side. The gas may be prevented from being supplied to one side of the discharge hole (or the second gas discharge hole) unevenly. In addition, around the side surface of the first base portion 21 on the side adjacent to the bearing portion 22 of the first grating 20 and around the shaft coupling hole 27 on the side adjacent to the first scraper portion 23. The first and second interval holding projections 51 and 52 are formed, respectively, and the side surfaces and the second side of the second base portion 31 on the side adjacent to the second bearing portion 32 of the second grating 30 are formed. Since the third and fourth interval holding protrusions 53 and 54 are formed around the coupling shaft 37 on the side adjacent to the first scraper portion 33, the first and second gratings forming the grate unit 10, respectively. It is possible to keep the interval of the 20 and 30 constant. Therefore, the air for the combustion between them can be made smoothly. In particular, since the first and second gratings 20 and 30 are formed on the side adjacent to the first and second scraper portions 23 and 33, the first and second inlet portions 26 and 36 are respectively formed. The discharge of the air through, that is, the air discharge resistance between the first and second gratings 20 and 30 may be reduced to smoothly discharge the air to the first and second scraper portions 23 and 33.

 Meanwhile, the first skirt portions 24 and 25 formed on the first grating 20 and the second skirt portions 34 and 35 formed on the second grating 30 are first and second shaft parts 22. The first and second skirt parts and the relative movement of the grate units for the movement of the waste during combustion has a structure that increases step by step toward the first and second scraper parts (23, 33) side from the (32) side It is possible to minimize the frictional force of the first and second base portion of the grate unit is located on the lower surface of the grate unit, and further reduce their driving force.

In addition, the first grate 20 has an axial coupling hole 27 formed at a side thereof adjacent to the first scraper portion 23, and is adjacent to the first scraper portion 23 of the second grate 30. Since the coupling shaft is formed on the side of the first and second gratings 20 and 30, when the first and second shafts 22 and 32 are pushed back and forth by the shafts 14 installed in each of the first and second gratings 20 and 30, The first and second gratings 20 and 30 can be prevented from being opened or separated.

As described above, the incinerator grate unit according to the present invention can smoothly supply air to the combustion chamber of the incinerator, and because the first and second grate are configured to operate in a mutually coupled state, the first and second incinerators are operated. It can prevent the grate from coming off. Therefore, the present invention can improve the combustion efficiency of the incinerator, and has the advantage of improving the economic efficiency of the incinerator by minimizing the loss due to the repositioning and replacement of the grate.

Although the present invention has been described with reference to the embodiments shown in the drawings, this is merely exemplary, and it will be understood by those skilled in the art that various modifications and equivalent other embodiments are possible. Therefore, the true technical protection scope of the present invention should be defined by the technical spirit of the appended claims.

10; Grate unit for incinerator
20; First grate
21; First base portion 22; First bearing portion
23; First scraper portion 24, 25; First skirt
27; shaft coupling hole
30; Second grate
31; 2nd base part 32; 2nd bearing part
33; Second scraper portion 34,35; 2nd skirt
37; coupling shaft

Claims (2)

A first base part providing a seating area in which the incineration object can be seated, a first bearing part formed at a lower side of one side end of the first base part and coupled with an axis for transporting or fixing, and the first base part A first scraper portion which is integrally formed at the other end and has a width relatively wider than the width of the first base portion, and is formed in the longitudinal direction on both sides of the lower surface of the first base portion, and is gradually increased from the bearing portion to the first scraper portion; The first skirt portion is formed to be stepped so that the first skirt portion is formed in the first skirt portion on the side adjacent to the first scraper portion to facilitate the gas discharge, the first skirt portion is adjacent to the first lead portion An axial coupling hole is formed in the first skirt portion on the bearing side, and two first recesses are formed on the upper surface of the first base portion on the side adjacent to the first scraper portion in the longitudinal direction. The discharge slot is formed with the first claim of the side that is adjacent to the inlet 1, the skirt portion and the respective first and second spacers on the first skirt portion surrounding the axial coupling hole, the first protrusion formed in the grate,
Being installed adjacent to the first grate, the second base portion for providing a seating area for the incineration object can be seated, and formed on the lower surface side of one end of the second base portion is coupled to the axis for transport or fixing A second scraper portion, a second scraper portion formed integrally with the other end portion of the second base portion and having a width relatively wider than the width of the second base portion, and formed on both sides of the lower surface of the second base portion in the longitudinal direction; And second skirt portions that are formed stepped so as to be stepped up from the bearing portion to the second scraper portion side, and a second inlet portion for smoothly discharging gas to the second skirt portions adjacent to the second scraper portion. And a coupling shaft coupled to the shaft coupling hole at a second skirt portion of the side adjacent to the second inlet portion, and having a second base adjacent to the second scraper portion. Two second gas outlet holes are formed on the upper surface side by side in the longitudinal direction, and the first skirt portion on the side of the second skirt portion adjacent to the second inlet portion and the second skirt portion around the axial coupling hole are formed. Grate unit for an incinerator characterized in that it comprises a second grate formed with a third, fourth interval holding projection in contact with the second interval holding projection. The method of claim 1,
The forming density of the first ribs formed between the first skirt portions of the first grating is lower than the height of the first skirt portions increases from the first bearing portion to the first scraper portion, and burns between the first gas discharge holes. A first gas distribution rib for distributing gas is formed,
The forming density of the second ribs formed between the second skirt portions of the second grate is lower than the height of the second skirt portion increases from the second bearing portion to the second scraper portion, and burns between the second gas discharge holes. Grate unit for an incinerator, characterized in that the second gas distribution rib is formed for distributing gas.

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