KR100775568B1 - Drying apparatus of sludge and method of manufacturing for cell - Google Patents

Abstract

A drying apparatus of sludge and a manufacturing method of cells by using the same are provided to use the incinerated material as artificial culture soil, a building material, an ecology restoring material, a magnesia fertilizer and a water purifying or cleaning material after incinerating sewage or night soil sludge, and reuse the recovered oil by recovering oil used in the incineration. A drying apparatus(1000) of sludge comprises: a dewatering means(202) for dewatering the sludge to form sludge(201) accumulated in a sewage or night soil treating plant into cells; a heating material supply means for crushing a heating material including a combustion material and a binder, drying the powder, and constantly controlling the particle size of the dried powder, the heating material supply means including a mixing and crushing machine(204), a sorter(206), a crusher(208), a dryer, and a classifier(212); a kneading machine(216) for homogeneously mixing the sludge that has been dewatered by the dewatering means with the heating material that has been supplied by the heating material supply means; a molding machine(217) for molding the kneaded sludge and heating material into a molded body with a predetermined size; a rotary kiln(218) for drying the molded body supplied from the molding means; and a heat source supply means for supplying the burnt gas into the rotary kiln after vaporizing pressed ordinary waste(301) to obtain gas and burning the gas.

Description

Drying apparatus of sludge and method of manufacturing for cell

1 is a view showing the configuration of a conventional sewage treatment apparatus;

2 is a view showing a conventional sludge incineration system,

3 shows an apparatus for treating sewage sludge in accordance with the present invention,

4 is a flow chart describing the operation of the apparatus shown in FIG.

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

200: sludge transport means 201: sewage or manure sludge

202: dehydrator 204: mixing grinder

206: Separators 208: Grinder

210: dryer 212: classifier

216 kneading machine 217 molding machine

218: rotary kiln 300: processing fuel

302; Pyrolysis Vaporizer 303: Oil Tank

304: oil recovery unit 305: burner

306: collector

The present invention relates to a drying apparatus and a cell manufacturing method of various sludges generated from sewage, manure, livestock waste water, industrial waste water, and the like. In particular, various compressed sludges are used as processing fuels for construction materials, ecological restoration materials, and water purification. And a drying apparatus and a cell manufacturing method of sludge treated to be used as a purification material.

Conventionally, the sludge itself has been disposed of or treated by ocean dumping. Alternatively, sludge has been incinerated and solidified with special cement to landfill. Sewage sludge drying apparatus for drying such sludge is disclosed in the registered Patent Publication No. 10-0340264 (2002. 05. 29.) and registered Utility Model Publication No. 20-0272728 (2002. 04. 08.) Incidentally, the incineration of sewage sludge for incineration of sewage sludge is disclosed in Korean Utility Model Publication No. 20-0279096 (2002. 06. 07.).

Sewage sludge drying apparatus and incinerator disclosed in the above publication are each composed of equipment for drying and incineration of sludge treated in livestock wastewater and industrial wastewater, and the facilities of the heating production system for separate heating injection into the drying apparatus. Since operating, fuel and heating costs are high, there was a problem that the drying cost or incineration cost increases.

In addition, the drying facilities and incineration facilities are also provided, respectively, the facility cost is also expensive, there was a problem that a large burden on the wastewater sludge treatment.

As an example of a technique for treating such sewage, the rotary kiln incineration system is composed of a primary combustion chamber (rotary kiln body) and a secondary combustion chamber, and an incineration material inlet is disposed at the inlet side of the primary combustion chamber, and the ignition and An assisting burner is arranged, and the primary combustion chamber has a structure in which the horizontal cylindrical path is rotated by a drive source such as a motor. In addition, the secondary combustion chamber is directly penetrated through the outlet side of the primary combustion chamber, and the non-combustible residue and the unburned dust combusted in the primary combustion chamber are introduced into the secondary combustion chamber to be burned by another burner. In addition, since the exhaust gas discharged from the secondary combustion chamber includes dioxins, which are harmful substances, the post-treatment process is reduced to reduce such harmful substances.

In the conventional rotary kiln incineration system, the ignition and supporting burners are disposed at the inlet side through which the incineration material is introduced, so that sparks are radiated in the same direction as internal convection, resulting in high fuel consumption and poor combustion efficiency. In addition, the secondary combustion chamber installed at the exit side of the primary combustion chamber is introduced without removing the completely burned incinerated ash and non-combustible residues from the primary combustion chamber, thereby increasing unnecessary loads, lowering combustion efficiency, and increasing dust emissions. It has a problem, and has a complicated structure to deal with incineration ash, non-combustible residues and the like unburned dust, so there is a problem that the manufacturing cost is increased because workability is reduced.

In addition, if the incombustible residues and unburned dusts introduced into the secondary combustion chamber are incompletely burned in the secondary combustion chamber or are not easily discharged to the lower part, the concentration of exhaust gas is increased and the burnt (especially asbestos) is moved to the next process, resulting in a risk of fire. Due to excessive dust, there is a problem in that a preduster facility such as cyclone needs to be added. In addition, in the exhaust gas treatment, after the high-temperature exhaust gas is cooled to about 204 ° C, a number of treatment devices such as cyclones, scrubbers, and electrostatic precipitators are used for dust collection. In particular, the secondary generation amount of dioxins, which are toxic toxins, is greatly increased, and thus, many expensive dioxins removal facilities have to be installed.

In addition, there is a problem that a separate treatment facility must be installed for the treatment of wastewater generated in a wet reactor such as a washing tower.

An example of a technique for solving such a problem is disclosed in Republic of Korea Patent Publication No. 10-2005-0072860 (July 20, 2005), Patent Registration No. 10-0339484 (2002. 05. 22.) Is disclosed.

That is, in the Patent Publication No. 10-2005-0072860, a conventional rotary dryer 1 having a double cylinder as shown in FIG. 1 has an injection tube (3) through a screw conveyor 3 in a sludge storage tank 2 on one side. 4) When the sewage sludge is introduced into the dryer 1 by the screw conveyor 3 ', it is heated by the heating of the burner 5 on the opposite side and by the hot air applied by the hot air blowing portion 7 of the heating tube 6. The sludge introduced into the dryer 1 is heated and dried, and the exhaust heat in the dryer 1 is removed from the cyclone 11 through the arranging unit 10 on one side, and again to the incomplete combustion gas reburner 12. It is injected and reburned by heating of the burner 5a, and calorie control is performed as the hot air volume regulator 14 through the exhaust pipe 13, and the soot is purified while passing through the washing tower 15 and the water remover 16. After the water is removed, the air is discharged through the exhaust pipe 18 by the exhaust fan 17. It is disclosed for the outgoing technology.

In the above publication, the dry sludge dried in the rotary dryer 1 is loaded into the silo 22 through the screw conveyor 3a, the bucket lift 21, and the screw conveyor 3b, and the discharge piece 23 is removed. It opens and loads in the vehicle 24. When the incinerator 31 is coupled to the sludge drying apparatus of such a configuration, the dry sludge feed pipe 28 is used for injecting dry sludge into the incinerator 31 having a dry sludge input hopper 26 and an array pipe 27 thereon. One end is connected to the screw conveyor (3b) and the other side is connected to the screw conveyor (3c) is configured as a screw conveyor (3c) through the dry sludge input hopper 29 of the incinerator 31 to dry the sludge directly.

In the incinerator 31, a screw conveyor 3d for discharging carbide is attached to the lower side, and a burner 5b for heating is installed and between the flue gas pipe 27 and the incomplete combustion gas recombustor 12. The exhaust heat transfer pipe 33 is connected to the exhaust heat transfer pipe 37 between the exhaust pipe 13 and the heat blower 35 of the incomplete combustion gas recombustor 12, and the heat blower 35 and the circulation fan 36 The exhaust heat transfer pipe 37a is connected between the circulation fan 36 and the heating tube 6 of the dryer 1, respectively, and the exhaust heat transfer pipe 37b is connected to each other so that dry sludge is introduced into the incinerator 31 and exhaust heat is discharged. Is configured to circulate and heat the dryer 1 with hot air.

In addition, the Patent Registration No. 10-0339484, as shown in Figure 2, as a block diagram of the incineration system having a rotary kiln, incineration material supply means 101, rotary kiln incinerator 103, exhaust gas quenching means 105 ), A dust collector 107 and a blower 109 are disclosed.

In the configuration of Figure 2, the incineration material supply means 101 is stored in the incineration material and sludge bunker shredded in the waste bunker so that the cake (cake) generated through the dehydrator can be injected into the incineration material inlet (1) The rotary kiln incinerator 103 is composed of a first combustion chamber and a first combustion chamber having a first burner disposed at an incineration material inlet 1 side, and a second burner disposed at a position facing the first burner. It is a structure including the 2nd combustion chamber provided with the flange joint at the upper side of the part in which 2 burners are engaged, and equipped with a 3rd burner. Moreover, the 1st combustion chamber is further equipped with the further burner for waste-burning in the position adjacent to a 1st burner.

In addition, the exhaust gas quenching means 105 is for quenching the high-temperature exhaust gas discharged through the rotary kiln incinerator 103, a water-cooled heat exchanger 111 for quenching the exhaust gas passed through the rotary kiln incinerator, water-cooled Pneumatic heat exchanger 113 for cooling the exhaust gas passing through the heat exchanger 111 by air is sequentially arranged, the pneumatic heat exchanger 113 cools the exhaust gas by air, and by the exhaust gas The hot air warmed in the cooling process is introduced into the first combustion chamber (rotary kiln incinerator) to supply air for waste incineration.

In addition, the injector is located between the quenching means and the dust collector, and has a structure for injecting the toxic substance remover of the powder into the pipeline for transferring the exhaust gas from the quenching means to the dust collector, the dust collector 107 is the exhaust gas quenching means 105 It is connected to the), and has a filter structure for removing the dust contained in the exhaust gas passed through the exhaust gas quench means 105, the blower 109 is to discharge the exhaust gas from the dust collector 107 to the outside Is connected.

However, in the technique disclosed in the above-mentioned documents, only the technique for incineration of sewage sludge or sewage sludge generated from livestock wastewater, industrial wastewater, and the like is disclosed. It is not disclosed at all. In other words, in the technique disclosed in the above publication, the incinerated sludge is buried or dumped at sea, but the landfill site is reduced, and the offshore dumping is limited by international law, and thus the sludge may not be completely treated by simple incineration. There was,

An object of the present invention is to solve the problems described above, and after the incineration of sewage or manure sludge, etc., the treated material is used as artificial culture soil, construction materials, ecological restoration materials, fertilizers, water purification or purification materials It is to provide a sludge drying apparatus and a cell manufacturing method which can recover and reuse the oil used for incineration.

It is another object of the present invention to provide a sludge drying apparatus and a cell manufacturing method which are provided in a sewage or manure treatment plant and which can treat sludge at low cost by recovering and reusing oil used for incineration.

In order to achieve the above object, the drying apparatus of the sludge according to the present invention is a drying apparatus for drying sewage or manure sludge using general wastes, wherein the sludge is dewatered to form sludge deposited in the sewage or manure treatment plant as cells. Dehydration means, a heating material supply means for pulverizing and drying the heating material and controlling the size of the particles uniformly, kneading to homogeneously mix the sludge dehydrated by the dewatering means and the heating material supplied by the heating material supply means Means, shaping means for shaping the kneaded sludge and heat generating material into a predetermined size, a rotary kiln for drying the molded body molded and supplied by the shaping means, and a gas vaporizing the compressed general wastes. And a heat source supply means for burning and supplying a heat source to the rotary kiln. do.

In the sludge drying apparatus according to the present invention, the heat source supply means includes a pyrolysis vaporizer for vaporizing compressed general waste, a combustion chamber for burning oil, and a collector for collecting and supplying a heat source supplied from the combustion chamber to the rotary kiln. Characterized in that it comprises a.

In the sludge drying apparatus according to the present invention, the heat source supplying means further includes an oil recovery device for recovering oil combusted by the pyrolysis vaporizer, and the oil recovery device has a temperature of 1,000 ° C. in the combustion chamber. If exceeded, it is characterized in that to recover the oil supplied to the combustion chamber.

In the sludge drying apparatus according to the present invention, the exothermic material supply means includes a mixed grinder for mixing and grinding a combustion material and a caking agent, and selecting a material that is not ground in the mixed grinder by mixing in the mixed grinder. And a sorter for picking out, a mill for milling the mixture selected by the separator, a dryer for drying the mixture ground in the mill, and a classifier for adjusting the mixture dried in the dryer to a predetermined size. It is done.

In the sludge drying apparatus according to the present invention, the drier is characterized in that the mixture is dried at 120 to 130 ° C.

In addition, the sludge drying apparatus according to the present invention is characterized in that the molded body is dried at 250 to 350 ° C. as a heat source supplied from the collector to the rotary kiln.

Further, in the sludge drying apparatus according to the present invention, the heating material includes one or two or more of waste synthetic resin, waste tire, waste oil, and coal, and the cloth cell in which the heating material is uniformly dispersed over the molded body. It is characterized by drying in the form.

In addition, the sludge drying apparatus according to the present invention is characterized in that it is provided in or adjacent to the sewage or manure treatment plant.

In addition, the cell manufacturing method according to the present invention for achieving the above object is a sludge collection step of collecting the sludge deposited in the sewage or manure treatment plant, a transportation step of transporting the collected sludge into the sludge drying apparatus, transported in the transport step Mixing the sludge with a heating material, mixing the sludge mixed with the heating material in the mixing step, forming a sludge and the heating material kneaded in the kneading step into a predetermined size to produce a molded body, the molded body A pyrolysis step of vaporizing general waste compressed for supplying a heat source to be dried, burning the gas and oil decomposed in the pyrolysis step in a combustion chamber, and collecting a heat source supplied from the combustion chamber to form a molded body formed in the molding step. Characterized in that it comprises a step of drying.

Moreover, in the cell manufacturing method which concerns on this invention, the said molded object is dried at 250-350 degreeC, It is characterized by the above-mentioned.

In the cell manufacturing method according to the present invention, the method further includes an oil recovery step for recovering oil combusted in the combustion chamber, wherein the oil recovery step is supplied to the combustion chamber when the temperature of the combustion chamber exceeds 1,000 ° C. It is characterized by recovering the oil.

The above and other objects and novel features of the present invention will become more apparent from the description of the specification and the accompanying drawings.

Hereinafter, the structure of this invention is demonstrated according to FIG.

3 is a view showing a sludge drying apparatus 1000 for treating sludge according to the present invention.

As shown in FIG. 3, the sludge drying apparatus 1000 includes a sludge supply crane for transporting the sludge 201 deposited in the sewage or manure treatment plant into a cell to transport the sludge 201 into the apparatus 1000. , Dewatering means 202 for dewatering the sludge 201 carried by the vehicle 200.

The dewatering means 202 has a water content of about 80% because the sludge deposited in sewage or manure treatment plant has a water content of about 80%, so that the water content is reduced to 60% or less by controlling the moisture content to control the amount of odor generated from sewage or manure. Decrease the absolute quantity.

In addition, it is provided with a heating material supply means for mixing the heating material in the dewatered sludge, the heating material supply means is a mixing grinder 204, a separator 206, a grinder 208, a dryer 210, a classifier ( 212).

The mixed grinder 204 is supplied with any one or two or more combustion materials of coal, including waste synthetic resins, waste oil, waste tires, anthracite coal, and the like, clay, loess, diatomaceous earth, and acidic clay to produce a heating material. Phosphorous binder is supplied and mixed while grinding them and transferred to the separator 206. The binder is to adsorb the odor generated in the sludge.

The mixture mixed in the grinder 204 picks out the stones or foreign matter contained in them in the separator grinder 206 and the combustibles or caking agents that are not comminuted but easily comminuted in the grinder 204. Is crushed and transferred to the grinder 208.

The mixture transferred from the separator 206 is finely pulverized in the crusher 208 and supplied to the rotary dryer 210, and in the dryer 210, moisture is 5% by weight or less, preferably at a temperature of 120 to 130 ° C. The mixture is dried to 1% by weight or less.

The mixture dried in the dryer 210 is transferred to the classifier 212 to adjust the size of the particles.

Hopper 214 is in communication with the kneader 216, the lower portion is inclined so as to supply a predetermined amount of dehydrated sludge and the heating material into the kneader 216.

One of the main features of the present invention is to knead the dewatered sludge 201 and the exothermic material through the hopper 214 into the kneader 216. In the kneading, the sludge and the heating material are homogeneously mixed by a rotary device such as a screw mounted in the kneader 216.

In addition, the sludge drying apparatus 1000 according to the present invention cuts the sludge kneaded in the kneader 216 and the exothermic material into a length of 5-20 mm while extruding the sludge and the heating material to a diameter of 5-20 mm in the molding machine 217, A cylindrical shaped body is obtained, and is provided with a rotary kiln 218 and a closed cell ejection opening 308 provided in the rotary kiln 218 for drying the shaped body.

Accordingly, the mixture supplied in a predetermined amount in the molding machine 217 is dried at a temperature of 250 ° C to 350 ° C, preferably 300 ° C, in the rotary kiln 218 so that the void region is uniformly dispersed throughout the entire material. To the outlet 308.

Next, the structure of the combustion for drying the sludge 201 shown in FIG. 3 is demonstrated.

In Fig. 3, reference numeral 301 denotes a processing fuel for supplying an incineration fuel to the sludge drying apparatus 1000, and the processing fuel 301 is general waste compressed at a waste disposal plant, and includes a waste supply crane. It is supplied to the drying apparatus 1000 of sludge by the transportation means 300.

Process fuel 301 compressed to a predetermined shape is fed to a pyrolysis vaporizer 302 which converts it into a second energy source. The processing fuel 301 supplied to the pyrolysis vaporizer 302 is combustible for about 12 hours, and is burned in the combustion chamber 305 together with the oil supplied from the oil tank 303 to supply the burned heat to the collector 306. do. In the pyrolysis vaporizer 302, dioxins are reduced in absolute amount during the drying of general wastes, and the combustion temperature in the combustion chamber 305 is maintained at about 850 to 950 ° C.

304 is an oil recovery device for recovering oil burned in the combustion chamber 305. The oil recovery device 340 is converted into oil when the pyrolysis vaporization gas of the pyrolysis vaporizer 302 is cooled to 100 ° C. or less, and is converted into oil. It will be recovered as oil. That is, in the sludge drying apparatus 1000 according to the present invention, when the temperature of the combustion chamber 305 exceeds 1,000 ° C., the remaining fuel is liquefied into oil and recovered from the oil recovery device 304, and the oil tank is less than 850 ° C. By replenishing and burning oil to the combustion chamber 305 at 303, the temperature of the combustion chamber 305 is maintained at about 850 to 950 占 폚. Therefore, since the oil recovered by the oil recovery device 304 is used as the reburn material in the combustion chamber 305, it is possible to reduce the corresponding oil for combustion.

Reference numeral 306 denotes a collector for maintaining heat that is burned in the combustion chamber 305 and maintained at about 850 ° C to 950 ° C. The collector 306 completely burns the carbon monoxide incompletely burned in the combustion chamber 305, collects the temperature by raising the temperature, and reduces the dioxins by completely burning the incomplete combustion gas. Heat collected by the collector 305 is supplied into the rotary kiln 218 as described above, and is supplied from the molding machine 217 at the rotary kiln 218 to a temperature of 250 to 350 ° C, preferably about 300 ° C. The molded body is treated with a cross cell.

Here, the heat supplied from the collector 306 is rapidly dropped by the moisture contained in the molded body to maintain about 300 ° C, and the gas supplied from the collector 306 is quenched by the rotary kiln 218, so that Dioxins contained are further reduced.

In addition, in FIG. 3, 309 is a dust collector connected to the rotary kiln 218 and collects dust generated during processing in the rotary kiln 218, and 310 is discharged through the rotary kiln 218. A wet scrubber for quenching high-temperature exhaust gas may be adopted, and a structure in which a pneumatic heat exchanger for cooling exhaust gas having passed through a water-cooled heat exchanger or a water-cooled heat exchanger by air is sequentially arranged.

311 is a smoke prevention device and a discharge device, and completely removes harmful components contained in the exhaust gas from the rotary kiln 218 passed through the dust collector 309 and the wet scrubber 310 to discharge into the air.

Reference numeral 222 denotes a bag filter, and when the gas discharged from the dryer 210 is sent to the bag filter 222 by the fan 101, dust and the like contained in the gas are collected.

Next, the operation of the sludge drying apparatus 1000 shown in FIG. 3 will be described with reference to FIG. 4.

4 is a flowchart illustrating the operation of the apparatus shown in FIG. 3.

First, the sludge collection and the process of mixing the sludge will be described.

Sludge apparatus 1000 according to the present invention is provided in or adjacent to a conventional sewage or manure treatment plant, and collects sludge deposited in the sewage or manure treatment plant (S10). The collection of such sludge 201 is provided with a sludge supply crane 200 in the sludge drying apparatus 1000 to transport a predetermined amount into the apparatus 1000 at a constant speed (S20). The transport of sludge 201 may be carried out by means of transport using a belt conveyor system.

The sludge 201 transported in this way is composed of a heating material supplied from a binder heating element supply means consisting of a mixer 204, a separator 206, a crusher 208, a dryer 210, and a classifier 212. It is mixed (S30).

The mixed sludge and the caking additive heating material are introduced into the kneader 216 through the hopper 214 and kneaded so as to homogeneously mix the sludge and the caking additive heating material (S40).

The kneaded sludge and the heat generating material are fed into the molding machine 217 and cut into a length of 5 to 20 mm while extruding to a diameter of 5 to 20 mm, thereby obtaining a cylindrical shaped body (S50).

The molded article molded to a certain size in the molding machine 217 is supplied to the rotary kiln 218 at a predetermined time interval.

Next, a process of supplying heat to the rotary kiln 208 will be described.

As the processing fuel 301 for incineration of sludge in the sludge drying apparatus 1000 used in the present invention, general waste compressed at a waste disposal plant is used, and the compressed general waste 301 is provided with a supply crane. The waste transport means 300 is supplied into the sludge drying apparatus 1000 (S11).

The processed fuel 301 is supplied to a pyrolysis vaporizer 302 which is converted into a second energy source and burned for about 12 hours (S12). The gaseous heat source vaporized and supplied from the vaporizer 302 is combusted in the combustion chamber 305 together with the oil supplied from the oil tank 303 (S13).

The combustion temperature of the combustion chamber 305 is maintained at about 850-950 degreeC. At this time, when the temperature of the combustion chamber 305 exceeds 1000 ℃, the remaining fuel is liquefied into oil and recovered by the oil recovery unit 304 (S14), if less than 850 ℃ to replenish the oil in the oil tank 303 and burned Therefore, the temperature of the combustion chamber 305 is maintained at about 850 to 950 ° C (S15). This heat source is supplied to the rotary kiln 218 via the collector 306.

Therefore, since the oil recovered by the oil recovery device 304 is used as the reburn material in the combustion chamber 305, it is possible to reduce the corresponding oil for combustion.

The heat source supplied to the rotary kiln 208 via the collector 306 is maintained at about 250 to 350 ° C., preferably about 300 ° C., and the molded body supplied from the molding machine 217 to the rotary kiln 218 is dried at this temperature. It becomes (S60). That is, the heating material mixed with the dewatered sludge is dried in the form of a closed cell in which the void region is uniformly dispersed over the entire material in the rotary kiln 218 (S70).

The cloth cell according to the present invention is completed by discharging the cell through the cloth cell outlet 308 provided at the bottom of the rotary kiln 218.

Such a cloth cell is a raw material that can be used as a building material, ecological restorative material, water purification and purification material by a separate processing process because the void region is uniformly dispersed throughout the entire material.

The cloth cell is discharged through the cloth cell outlet 308, and dust generated during the treatment at the rotary kiln 218 is collected at the dust collector 309, and the high-temperature exhaust gas including dioxins is wet-wash tower 310. By quenching below 60 ° C. using an alkaline solution, the content of dioxins is reduced, and the oxidizing agent is administered, thereby completely washing.

Therefore, the heat and harmful components contained in the exhaust gas from the rotary kiln 218 are removed through the dust collector 309, the wet scrubber 310, and the smoke prevention and discharge device 311 and discharged into the air.

As mentioned above, although the invention made by this inventor was demonstrated concretely according to the said Example, this invention is not limited to the said Example and can be variously changed in the range which does not deviate from the summary.

As described above, according to the drying apparatus and cell manufacturing method of the sludge according to the present invention, the heat generated by the general waste compressed as a heat source and sewage or manure sludge, which is difficult to treat, and waste synthetic resin, waste oil, waste tire or coal, which are difficult to treat. Since materials can be used as building materials, ecological restoration materials, water purification and purification materials, it is possible to simultaneously eliminate environmental pollution by general waste and sewage or manure sludge.

In addition, according to the drying apparatus and the cell manufacturing method of the sludge according to the present invention, since the drying apparatus is provided in or near the sewage or manure treatment plant, not only the operation and maintenance is easy but also the effect that the treatment cost can be reduced. Obtained

Claims (11)

In the drying apparatus for drying the sewage or manure sludge using general waste, Dewatering means for dewatering the sludge to form sludge deposited in the sewage or manure treatment plant into cells, Heating material supply means for controlling the size of the particles after grinding and drying the heating material including the combustion material and the binder, Kneading means for homogeneously mixing the sludge dewatered by the dewatering means and the heating material supplied by the heating material supply means; Molding means for molding the kneaded sludge and a heating material to a predetermined size; Rotary kiln for drying the molded body molded and supplied by the molding means, And a heat source supply means for burning a compressed gaseous vapor and supplying a heat source to the rotary kiln. The method of claim 1, The heat source supply means includes a pyrolysis vaporizer for vaporizing compressed general waste, a combustion chamber for burning oil, and a collector for collecting the heat source supplied from the combustion chamber to supply the rotary kiln to the rotary kiln. The method of claim 2, The heat source supply means further includes an oil recovery device for recovering oil in the pyrolysis vaporizer, And the oil recovery device recovers the oil supplied to the combustion chamber when the temperature of the combustion chamber exceeds 1,000 ° C. The method of claim 1, The heating material supply means is a mixed grinder for mixing and grinding a combustion material and a caking agent, a sorter for selecting and unselecting the unpulverized material from the mixture mixed by the mixing grinder, and the mixture selected by the separator And a classifier configured to adjust the mixture dried in the dryer to a predetermined size, and a dryer for drying the mixture ground in the mill. The method of claim 4, wherein The dryer is a sludge drying apparatus, characterized in that for drying the mixture at 120 ~ 130 ℃. The method of claim 2 or 3, Drying apparatus of the sludge characterized in that the molded body is dried at 250 ~ 350 ℃ to the heat source supplied from the collector to the rotary kiln. The method of claim 6, The heating material is a sludge drying apparatus, characterized in that one or two or more of the waste synthetic resin, waste tires, waste oil, coal is dried in the form of a cloth cell in which the heating material is uniformly dispersed over the molded body. The method of claim 1, The sludge drying apparatus is provided in or near a sewage or manure treatment plant. Sludge collection step for collecting sludge deposited in sewage or manure treatment plant, Transport step of transporting the collected sludge into the sludge drying unit, Mixing the sludge transported in the transport step with a heating material, Kneading the sludge mixed with the heating material in the mixing step, A molding step of manufacturing a molded body by molding the sludge kneaded in the kneading step and a heating material to a predetermined size, Pyrolysis step of vaporizing general waste compressed for supplying a heat source to dry the molded body, Combusting the gas and oil decomposed in the pyrolysis step in a combustion chamber; and And collecting the heat source supplied from the combustion chamber to dry the molded body formed in the molding step. The method of claim 9, Drying of the said molded object is made at 250-350 degreeC, The cell manufacturing method characterized by the above-mentioned. The method according to claim 9 or 10, And an oil recovery step for recovering oil combusted in the combustion chamber, wherein the oil recovery step recovers oil supplied to the combustion chamber when the temperature of the combustion chamber exceeds 1,000 ° C.

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