KR20030030576A - Sludge coal production method using waste - Google Patents

Abstract

PURPOSE: Provided is a method for recycling sludge, and more particularly a method for fabricating fuel (sludge coal) using solid waste and sludge. CONSTITUTION: The method comprises the steps of pretreating solid waste by melting plastic waste and styrofoam waste in a low temperature melting furnace and cooling them, and crushing fire retardant material such as electronic board and back light into small pieces to have a size less than 3 mm; mixing the pretreated solid waste, waste sludge generated from a wastewater disposal plant, and sludge generated from a tannery, a paint manufacturing plant, a spinning plant and a paper mill, lignite, anthracite, and quicklime using a mixer; kneading the mixture using a plate mill; molding the mixture using a molding machine to have a predetermined shape; and drying the molded mixture by hot air, wherein the pretreated solid waste, the sludge of waste water disposal plant and other plants, mixture of lignite and anthracite, and quicklime are mixed with a ratio of 23%:45%:23%:9%.

Description

Sludge coal production method using waste {omitted}

end. Detailed description of the invention

(1) The technical field to which the invention belongs and the prior art in that field

In the present invention, in the method of manufacturing sludge coal using waste, waste vinyl, waste stropol, etc. are melted and cooled in a low-temperature melting furnace, and then molded into a plate shape and made into 3 mm or less using a grinder with flame retardant materials such as electromagnetic plates and tuckite. Sludge (also known as sludge), leather products, paints, textiles, paper, etc., sludge produced in the terminal treatment plant, lignite, anthracite, quicklime, etc. are mixed in a mixer to form a mold and beat.

I. Detailed description of the drawings

1 is a process for producing sludge coal using waste according to the present invention. The above process puts waste vinyl and waste stropol into a low temperature furnace and heats it at 400 degrees C to form a flat plate shape. Is put into the grinder to produce particles of 3mm or less.

The following process is a schematic conceptual diagram of making sludge coal after hot air production by mixing and molding materials according to mixing ratio.

The process of melting waste vinyl, waste stropol, etc. in the low temperature melting furnace which concerns on FIG. 2 and this invention

No.1 is used as a fire inlet connected to our combustion furnace

No. 2 is burned down by centrifugal force.

No.3 and No.4 are conveyors and inlets for handling low melting materials such as waste vinyl and waste stropol.

No. 5 is a gas outlet through which heat can emit odors.

No.6 is a gas exhaust blower

No. 7 is connected to the cooling cart by gas passage.

No.8 is a melt discharge port and flows into a cold water tank to cool

No. 9 is connected to the cyclone system from top to bottom with stacks.

No.10 is Kestbull SK36, a refractory material. Kestabull is composed of 400 degrees C, 4 cm at 100 degrees C per cm.

3 is a quenching and crushing step in the process of melting waste vinyl, waste stropol, etc. in a low temperature melting furnace according to the present invention.

No.11 is quenched with a cooling bath and connected to No.12,

No.12 connects No.12 that came up in No.11 as a gear wheel conveyor.

No.13 is rolled up with a pedestal,

No. 14 is an inlet, No. 15 is a quencher and No. 16 consists of a 3 mm or less body.

No. 17 is Krassha and No. 18 serves to induce quenching from No. 10.

In No. 19, move to Skew Conveyor using tank.

4 is a pulverizer and a dead sheet mill according to the present invention.

No.1 is a pulverizer that mainly pulverizes flame retardant materials such as electromagnetic plates, bulk lights, etc., and has an air hole (pressure relief) and a discharge port at the bottom.

No. 2 is a machine for grinding lignite, anthracite, etc., and has the same air port and discharge port as No. 1.

No. 3 is a description of sheet mill and plays a role of winning between the mixer and the molding machine.

Sheet mill is a machine that kills water-bound materials and is installed between the mixer and the molding machine.

No.4 1Ton wheel, No.5 is bevel gear No.6, deceleration line.

5 is a mixer and molding process according to the present invention.

No.1 is sludge inlet No.2 is lignite and anthracite inlet No.3 is quicklime inlet

No.4 is an electromagnetic plate, a chlorite inlet No.5 is a vinyl, stropol powder inlet

No.6 is a 50HP (horsepower) mixer (4 or more) and No.7 is a 100HP (horsepower) molding machine

No. 8 is cutting machine No. 9 is chain conveyor and it means drying stand.

No.10 is the place where dry hot air comes out, and the 200 degree C hot air furnace uses its incinerator.

Sludge bullet, which is a product, comes out in No.11.

In the present invention, in the sludge coal production method using the waste as described above, it is necessary to collect the sludge separately before the sludge is collected.

Furnace pressure (reduction atmosphere: 還 元 雰 I) There are three types.

1)-(minus): becomes oxidation

2) + (Plus): It is reduced.

3) 0 (zero): Pressure to raise the temperature

Sludge such as waste paint or plating contains heavy metals and should be separated.

The ash is melted, reduced, and reduced by heating the furnace pressure to + (plus) at 1400 ° C and then sent to the smelter, whereby heavy metals can be easily obtained from the smelter.

The amount of sludge generated in sewage treatment plants is nationwide.

Some of them are used as raw materials in the cement production process, and a large amount of sludge is in the state of neglect, so our company has been experimenting for many years, so that the quality sludge is not damaged during transportation, and the hot strength is maintained above 50kg / cm2. Only unburned ashes, not decayed, are eliminated through the lost stall.

The sludge chemicals generated in general sewage treatment plant are as follows.

Water content: 10.7-19.07%

3.53% carbon

K2O 1.49%

NA2O 0.87%

LG LOSS 39.09% (27.28% volatilization)

P2O5 3.45%

Ash 50.12%

Adjust the calories or compounding ratio as described above to adjust calories to 6,500 calories. Use quicklime as a coagulant, adjust moisture to mature in a plate mill, shape it with a high pressure screw molding machine, and cut and dry it to make a product.

In particular, it is very difficult to process spinning sludge, leather sludge, waste paint (aqueous and oily mixture), oakite, electromagnetic plates, etc. By burning in the used furnace, all harmful gases are released to the atmosphere with zero PPM.

At this point, the gas is decomposed at 800 degrees and the fugitive is dissolved at 1400 degrees, so it turns into a harmless substance.

If there is a residence time at 300 degrees and 400 degrees, it becomes a harmful substance combined with oxygen again, so it should be quenched to lower the temperature below 200 degrees.

In the sludge coal production process, substances with melting point less than 400 ° C in the table below are melted in a low temperature melting furnace, injected into the mold, cooled, and pulverized to 3 mm or less to be blended raw materials.

1.grinding machine

2.crass

3. lignite grinding machine

4.plate mill

The above mills are different depending on the milling materials and are given in the following separate table.

Humidity is formed on the high pressure screw by mixing and mixing the whole raw materials, and put a hole in the diameter of 1cm in the center of 4cm of circular diameter. Thus, sludge coal is produced.

Separate table

Polyethylene 11,040 10-20 Value of waste products (integrated processing)

Polypropylene 11,000 10-20 〃

Foamed Squirrel 10,000 10-30 〃

Waste Tires 9526 10-90 〃

ABS value 9,000 10-20 〃

Waste Rubber 8,927 10-90 〃

Waste synthetic resin 8,692 10-30 〃

PE: Wood = 7: 3 8,260 10-60 〃

Oil rag 7,200 10-50 〃

Acrylic resin 6,951 10-30 〃

Waste Synthetic Fiber 6,591 10-30 〃

PE: Paper: Wood = 2: 1: 1 6,300 10-50 〃

Rubber Tube 5,200 10-90 〃

Closed Newspaper 5,100 10-30 〃

Wood 4,800 10-30 〃

Ket top box 4,500 10-30 〃

Utea 4,405 10-30 〃

Polyvinyl 4,400 10-20 〃

Polyurethane 4,300 10-20 〃

Lol 3,870 10-20 〃

Waste Leather 3,825 10-50 〃

Paint sludge 7,500 10-50 Aqueous, oily, waste oil combined

Lignite 7,500 10-50 Items

Anthracite 7,200 10-50 Items

Gasoline levels vary depending on the type of sludge

Highly burned as a flame retardant

Electromagnetic plate flame retardant

1 is a sludge coal production process using waste according to the present invention

2 is a process for melting waste vinyl, waste stropol, etc. in a low temperature melting furnace according to the present invention.

3 is a cooling and grinding process in a low temperature melting furnace according to the present invention

4 is a pulverizer and a die sheet mill according to the present invention

5 is a mixer and molding process according to the present invention.

This will be described in detail as follows.

In the present invention, in the method of manufacturing sludge coal using waste, waste vinyl, waste stropol, etc. are melted and cooled in a low-temperature melting furnace and cooled to 3 mm or less with a grinder, and flame retardant materials such as electromagnetic plates and percite are 3 mm or less with a grinder. Made waste 23%

45% of sludge produced from sewage treatment plants (aka sludge), leather products, paint, textiles, paper, etc.

Lignite and Anthracite 23%

Quicklime 9%

The sludge coal production method using the waste made by mixing the above into a mixer and winning by molding with a sheet mill is completed.

Chemical composition of common sludge.

Water content 19.07%

K2O 1.49%

NA2O 0.87%

LG LOSS 39.09% (27.28% volatilization)

P2O5 3.45%

Ash 50.12%

C 3.53%

Chemical composition of sludge coal. Sludge Burnt Ash Components

CAO 30.1% CAO 30.1%

SIO2 50.05% SIO2 50.05%

Quicklime 10.5% HL2O3 12.55%

C 65.0% FE2O3 4.80%

AL2O3 10.06% K2O 2.35%

The amount of sludge generated in sewage treatment plants is nationwide.

Spinning sludge, leather sludge, waste paint (aqueous, oily mixture), haclite, electromagnetic plates, etc. are very difficult to dispose, and in some cases they are often buried in rice fields and mountains on newspapers or on TV.

Therefore, we manufacture special sludge coal and burn it in the combustion furnace manufactured by our company, so that all harmful sesames are discharged to the atmosphere with zero PPM, so that sludge, electromagnetic plate, and bulk light, which are difficult to treat, are treated cleanly.

In our company, many years of research and experiments are carried out to ensure that the sludge coal is not damaged during transportation, and the hot strength is maintained above 50kg / cm2, so that the hot coal does not collapse and only the completely burned ash is dropped through the rostol. Contribute to production and pollution prevention.

Claims (5)

Waste vinyl, waste stropol, etc. are melted in a low temperature melting furnace, cooled, and flame retardant materials such as electromagnetic plates and baccite are made of 3 mm or less with a crusher, and all sludge (aka: sludge) and leather products, Sludge coal production method using waste, which has the function of mixing lignite, anthracite coal, quicklime, etc. in the sludge of paint, textile, paper, etc. in a mixer, forming it into a molding machine, forming it into a molding machine and drying it by dry hot air. According to claim 1, waste vinyl, waste stropol, etc. are melted and cooled in a low temperature furnace and cooled to 3 mm or less with a pulverizer, and flame retardant materials such as electromagnetic plates and tuckite are made of 3 mm or less with a pulverizer. Sludge produced from sewage treatment plants (also known as sludge) 45% of sludge such as leather products, paints, textiles and paper, lignite and anthracite 23% quicklime 9% The above mixing ratio and all raw materials are included. The process for melting waste vinyl, waste stropol, and the like in a low temperature melting furnace, and the process of mixing industrial waste and sludge with each other for molding. The sludge having a heavy metal content of claim 1 and 2 encompasses a process of separating and collecting separate coal. The process according to claim 1, wherein the drying is carried out in a drying furnace so as not to catch fire even when ignited during hot air drying.