KR20010068090A - Apparatus to iacinerate sludge - Google Patents

Abstract

The present invention relates to a sludge incineration treatment apparatus.

In the present invention, the incinerator main body 10 includes a cylindrical fireproof wall 70 having a support 75 fixed to an upper surface thereof, and a support wall 71 formed inside the fireproof wall 70. The air inlet 74 and the recovery heat injection hole 73 are installed on the upper surface and supported by the heating unit 72 and the support 75 of the fireproof wall 70, and a plurality of through holes 32 are formed around the upper surface. ) And a bottom surface of the conveying screw 31 is installed in a spiral shape and a sludge feed cover 30 having a hollow conical sludge feed hole formed at the upper center, and a spacing holding portion 21 at the outside of the sludge feed cover 30. Heat loss prevention cover 20 and the heat coupled to the spaced apart by the sludge transfer cover 30 in a state coupled to the outer bottom gear 22 is engaged by the one side driving motor (M), heat Ducts (80) installed on the loss prevention cover (20) and the sludge transfer cover (30) for discharging the steam and odor of the sludge ), A support cover 40 installed in the state of being spaced apart inside the sludge conveyance cover 30, and having a heat radiating space 42 and an exhaust port 41 formed in the upper center thereof, a sludge conveying cover 30 and It is provided between the support cover 40 and the sludge conveying space 50 for the downward movement of the supplied sludge, and the sludge conveyed for the discharge guide of the sludge discharged downward around the bottom of the sludge conveying space 50 It is a structure configured to include the receiving 60.

According to the present invention, the sludge supplied to the incinerator main body 10 of the conical structure widened downward from the upper center is guided downward by the feed screw 31 installed in a spiral at the same time as the rotation and the sludge by the bottom burner. Since the heating is simultaneously performed, the drying and firing efficiency of the hydrous sludge is not only maximized, but there are various advantages such as the expansion of the sludge transport distance or the incineration apparatus can be manufactured in a small size.

In addition, the present invention can separate and discharge the steam and odor of the sludge separately from the exhaust gas, there is an advantage that can easily reuse the exhaust gas as well as preventing air pollution.

Description

Sludge Incineration System {Apparatus to iacinerate sludge}

The present invention relates to a sludge incineration treatment apparatus.

The present invention is to improve the drying and firing efficiency of the sludge by further extending the sludge conveying distance by configuring the thermal contact portion of the sludge supplied by the centrally fed heating structure downwardly. .

As is known, the recent pollution caused by environmental pollution has been realized, and various pollution prevention measures have been suggested.

Conventional industrial and general waste incinerators do not have a separate continuous facilitator in the incineration chamber, so the grate of castings installed in a straight or alternating shape is installed on the bottom of the incinerator so that the waste can be burned thereon. When it is thrown in, it is dropped and stacked on the grate.

Therefore, the oxygen supply is not sufficiently supplied to the inside of the sludge, so it is not completely burned, and even though a separate oxygen supply device is considered in the grate structure, the garbage is frequently accumulated because the air sprayer is frequently blocked. Various harmful gases, dust and odor are generated.

For the purpose of solving the conventional problems, a bearing is placed on the center of a plurality of support hole engines for general and industrial waste incineration, and the air tube arms are radially disposed along the circumference at regular angle intervals in a radial direction thereon. It is equipped with a projecting rotor and fills the incineration space of the cylindrical incineration chamber so that it can be rotated magnetically by the partial output of the pressurized air. An incinerator has been proposed to completely burn waste by dispersing it to achieve miniaturization of the incinerated object, which is a basic condition of uniform incineration.

However, such incinerators have a cylindrical structure of the upper feed type, and the wastes can be fed into the incinerator at the same time, and then distributed. Not only is it suitable for incineration, but it is also used to perform the pretreatment process for incineration.

For reference, briefly look at the conventional treatment of sewage sludge. First, the water content of the sludge from which 25% of water was removed through the dehydration process of the sewage treatment plant was dehydrated to about 10-20% through the dehydration process in the dehydrator. After the transfer to the dryer to dry it, the incinerator is conventionally large in size compared to the incineration efficiency, and simply by putting the sludge into the incinerator inside the incinerator for a predetermined time after being heated by the bottom burner Due to the immediate discharge, the sludge incineration and drying conditions are not only poor, but also due to the lack of its own internal transport means, structurally unreasonable problems are exposed in the supply and discharge of sludge.

In addition, since the sludge of the sewage treatment plant contains a large amount of polymer flocculant, the conventional dehydration drying method can not significantly reduce the sludge, and even during incineration treatment, such an incineration method requires an excessive amount of equipment and operating costs.

In particular, during incineration of sludge, due to incomplete combustion of volatile components contained in sludge, dust of dioxin or sludge, which is one of the factors of air pollution, is discharged directly to the outside of the incineration plant without filtration, resulting in secondary environmental pollution. Will result.

On the other hand, although some incinerators with conveyor systems are provided, in this case, the number of conveyors must be configured inside the incinerator with excessive burden of facility costs, which makes it difficult to secure space and the appearance of the incinerator is increased. Since there is a problem that the efficiency is lowered, the situation is required to improve.

The present invention intends to further improve the drying efficiency of the sludge by configuring the thermal contact portion of the sludge supplied by the centrally fed heating structure downward to extend the sludge conveying distance.

To this end, the present invention in the construction of the incinerator main body, a cylindrical fireproof wall fixed to the upper surface, and the inner side of the fireproof wall is constructed by the support wall and the air inlet hole and the recovery heat injection hole is installed on the upper surface Conical sludge conveying cover and sludge conveying cover, which are supported by the heated portion, the support of the fireproof wall, and the plurality of through holes and the conveying screw are spirally installed around the upper surface and the sludge inlet is formed in the upper center. Heat loss prevention cover and heat loss prevention cover coupled to the spaced apart by the spacing retainer on the outside of the rotational rotation with the sludge conveying cover in a state in which the gear is recirculated to the outer bottom and engaged by one side drive motor; It is installed on the upper part of the transport cover and the duct for discharging the steam and odor of the sludge, and is installed in a state separated from the inside of the sludge transport cover It is provided between the support cover having a heat radiating space portion and an exhaust port formed in the upper center, a sludge conveyance cover and a sludge conveyance space for downward movement of the supplied sludge, and a lower portion of the sludge conveyance space. In order to achieve the above object by providing a series of related configuration comprising a sludge receiver for guiding the discharge of the sludge discharged to the.

1 is a cross-sectional view of the present invention

* Description of the symbols for the main parts of the drawings *

10: main body 20: heat loss prevention cover

21: spacing 22: gear

30: sludge transfer cover 31: transfer screw

32: through hole 40: support cover

41: exhaust port 42: heat radiation space

50: sludge transport space 51: sludge inlet

60: sludge receiving 70: fireproof wall

71: support wall 72: heating portion

73: recovery heat injection hole 74: air inlet hole

75: support 80: duct

M: drive motor

In the present invention, the incinerator main body 10 includes a cylindrical fireproof wall 70 having a support 75 fixed to an upper surface thereof, and a support wall 71 formed inside the fireproof wall 70. The air inlet 74 and the recovery heat injection hole 73 are installed on the upper surface and supported by the heating unit 72 and the support 75 of the fireproof wall 70, and a plurality of through holes 32 are formed around the upper surface. ) And a bottom surface of the conveying screw 31 is installed in a spiral shape and a sludge feed cover 30 having a hollow conical sludge feed hole formed at the upper center, and a spacing holding portion 21 at the outside of the sludge feed cover 30. Heat loss prevention cover 20 and the heat coupled to the spaced apart by the sludge transfer cover 30 in a state coupled to the outer bottom gear 22 is engaged by the one side driving motor (M), heat Ducts (80) installed on the loss prevention cover (20) and the sludge transfer cover (30) for discharging the steam and odor of the sludge ), The support cover 40 is installed in the spaced apart state of the sludge transfer cover 30, the heat radiation space 42 and the exhaust port 41 in the upper center, sludge transfer cover 30 and It is provided between the support cover 40 and the sludge conveying space 50 for the downward movement of the supplied sludge, and the sludge conveyed for the discharge guide of the sludge discharged downward around the bottom of the sludge conveying space 50 It is a structure configured to include the receiving 60.

The present invention is a sludge heating structure for effectively conducting water-containing sludge drying and firing, each cover 20, 30, 40 for guiding the sludge down has a hollow hollow structure. Therefore, when the sludge is supplied through the sludge inlet 51 formed in the upper center, the sludge is naturally moved downwardly to the bottom by its own weight along the upper surface of the support cover 40 and at the same time, the transfer screw of the sludge transfer cover 30 ( 31) it is to be discharged naturally to the bottom after circulating the entire upper surface of the support cover 40, wherein the heating heat supplied by the bottom burner (not shown) continues to heat the support cover 40 The sludge's moisture is gradually removed completely.

The sludge conveying means is like a conical roof formed on the upper part of the fireproof wall 70 in which the heating part 72 is installed, so as to prevent heat loss of the heating heater supplied by the burner, as well as inside the support cover 40. The entire heating of the sludge by the provided heat radiation space 42 is to be possible.

The sludge conveying cover 30 of the present invention is supported by the support 75 of the fireproof wall 70 and the plurality of through holes 32 and the conveying screw 31 on the bottom surface of the upper surface is installed in a spiral and the upper sludge inlet ( The sludge supplied to the 51 is not moved to the bottom at a time, and the conveying screw 31 installed on the sludge conveying cover 30 in the sludge conveying space 50 provided between the sludge conveying cover 30 and the support cover 40. It rotates through the entire upper surface of the support cover 40 by the rotation guide and discharges the sludge as completely removed by the heating heat by the bottom burner. Drying and firing will be possible.

The heat loss prevention cover 20 is coupled to the outer side of the sludge conveyance cover 30 by the gap retaining hole 21, and the gear 22 is installed at the outer bottom to be engaged by one side driving motor M. Steam and odor of the hydrous sludge generated during drying by being rotated together with the sludge conveying cover 30 in the opened state to the passage between the heat loss preventing cover 20 through the through hole 32 of the sludge conveying cover 30. It is discharged to be discharged to the upper duct 80 and by the heat loss prevention cover 20 it is also possible to effectively prevent the external loss of the heating heater.

On the bottom of the sludge conveying cover 30 is installed in a spaced apart state and the support cover 40 is formed in a fixed form on the heating portion 72, the heat radiation space 42 and the exhaust port 41 formed in the upper center inside The heating heat of the burner is supplied to the heat radiation space 42 to heat the entire bottom surface of the support cover 40 at a time, so that the sludge transport space of the supplied sludge does not become unbalanced in any one portion. The hydrous sludge supplied to 50) is dried and fired as a whole.

The sludge is heated by the heating part 72 configured inside the fireproof wall 70 and entered by the support wall 71 and the air inlet hole 74 and the recovery heat injection hole 73 on the upper surface. Bar, the generated exhaust gas is discharged to the outside of the incinerator main body 10 through the outlet of the support cover 40 to recover its heat through a heat recovery device (not shown) installed outside the incinerator main body 10. It is useful to re-supply the recovered heat injection hole (73) or to dry again the hydrous sludge transported to the outside, and the sludge finished the above-mentioned process is recirculated around the bottom of the sludge conveying space part 50 and discharged downward. Through the sludge receiving (60) for the discharge guide of the sludge is naturally falling down to be easily collected.

Therefore, in the present invention, when the temperature is sufficiently increased after applying heat to the burner, the water-containing sludge is introduced through the upper sludge inlet port 51 of the sludge conveying cover 30 so that the sludge is in the sludge conveying space part 50. And the entire upper surface of the support cover 40 by the transport screw 31 installed on the bottom surface of the sludge transport cover 30 in the process of moving downward through the sludge transport space 50 formed between the support cover 40. At the same time, the drying and firing of the sludge is gradually made by the heating heater of the bottom burner, and then discharged to the bottom sludge receiver 60 to effectively dry and calcin the hydrous sludge.

According to the present invention, the sludge supplied to the incinerator main body 10 of the conical structure widened downward from the upper center is guided downward by the feed screw 31 installed in a spiral at the same time as the rotation and the sludge by the bottom burner. Since the heating is simultaneously performed, the drying and firing efficiency of the hydrous sludge is not only maximized, but also there are advantages such as the expansion of the sludge transport distance or the incineration apparatus can be made compact.

In addition, the present invention can separate and discharge the steam and odor of the sludge separately from the exhaust gas, there is an advantage that can easily reuse the exhaust gas as well as preventing air pollution.

Claims (2)

In constructing the incinerator main body 10, a cylindrical fireproof wall 70 is fixed to the upper surface and the support wall 75 is configured, and the inner wall of the fire wall 70 is built up by the support wall 71 and the upper surface The air inlet hole 74 and the recovery heat injection hole 73 are supported by the heating unit 72 and the support member 75 of the fireproof wall 70 and are provided with a plurality of through holes 32 and bottoms around the upper surface. The conveying screw 31 is installed in a spiral shape and the sludge feed cover 30 of which the sludge inlet is formed in the upper center is spaced apart from the sludge conveying cover 30 by the space holding hole 21 on the outer side of the sludge conveying cover 30. The heat loss prevention cover 20 and the heat loss prevention cover rotated together with the sludge transfer cover 30 in a state in which the gear 22 is coupled to the outer bottom and engaged by the driving motor M on one side. 20 and the duct 80 is installed on the upper portion of the sludge conveying cover 30 to discharge steam and odor of the sludge, and the sludge It is installed on the inner side of the conveyance cover 30 spaced apart from the support cover 40, the heat radiation space portion 42 and the exhaust port 41 formed in the upper center, and the sludge conveyance cover and the bottom around the bottom of the support cover And sludge incineration treatment apparatus, characterized in that it comprises a sludge receiving (60) for guiding the discharge of sludge discharged downward. The sludge incineration treatment apparatus according to claim 1, further comprising a sludge conveying space (50) for the movement of the sludge between the sludge conveying cover (30) and the support cover (40).