KR20030067203A - Apparatus for gasfication melting of the variety waste - Google Patents

Abstract

PURPOSE: A composite waste gasification melting apparatus is provided to reduce production facility and improve productivity by treating waste having various characteristics and states and physical properties inside an integrally constructed single unit by continuous single process. CONSTITUTION: The composite waste gasification melting apparatus(10) comprises a gasification melting furnace at upper end and lower end of which production gas outlet(11) and slag outlet(12) are respectively formed; a production gas moving part(20) formed at the upper inner part of the gasification melting furnace so that the production gas moving part is connected to the production gas outlet; a rotation part(30) which is formed at the lower side of the production gas moving part so that the rotation part is connected to the production gas moving part with inner diameter of the rotation part being larger than inner diameter of the production gas moving part, and in which first and second inclined surfaces(31,32) are formed connection part of the production gas moving part and connection part of the slag forming part respectively; a slag forming part(40) which is formed so that the lower side of the rotation part is connected to the slag outlet, which has inner diameter less than inner diameter of the rotation part, and on which a third inclined surface(42) is formed so that the slag forming part is bent to one side; waste oil injection pipe(34), liquid phase waste injection pipe(35) and sludge phase waste injection pipe(36) respectively horizontally inserted into the rotation part to inject waste oil, liquid phase waste and sludge phase waste onto the inner wall of the rotation part; and a solid phase waste injection part inserted into the slag forming part so that solid phase waste is injected into the slag forming part.

Description

Compound Waste Gasification Melting Unit {APPARATUS FOR GASFICATION MELTING OF THE VARIETY WASTE}

The present invention relates to a waste gasification melting apparatus, and more specifically, to utilize the combustible components of the waste in which waste oil, liquid and sludge phase, solid waste at the same time as a main energy source, the non-combustible components are melted at a high temperature to secondary pollution The present invention relates to a complex waste gasification melting apparatus that can be treated in the form of slag free.

In general, combustible wastes discharged from various industrial sites are mainly treated by incineration and landfill, but leaching of heavy metals when landfilling heavy metals is a source of contamination of soil and groundwater, and toxicities such as dioxins generated during incineration. Waste is emitted, causing environmental problems.

In order to replace such an incineration method, various gasification melting facilities have been proposed. In particular, industrial wastes include liquid wastes such as waste oil, waste lubricating oil, waste acid, and waste alkali; Sludge wastes such as wastewater sludge and grease; Solid wastes such as waste tires and automobile scraps; Due to various physical properties and properties, it is difficult to process in a single process, so the conventional industrial waste gasification melting method is generally performed in an independent device according to the waste properties.

On the other hand, even in the case of treating wastes in combination with liquid waste, sludge waste and solid waste, the pyrolysis step of separating the waste into primary pyrolysis and pyrolysis gas and dry residue at 500 ° C to 800 ° C, and pyrolysis process The gas generated in the process is introduced and used in a gasification melting process of gasifying and melting at 1100 ° C to 1500 ° C.

However, the use of an independent device takes a lot of equipment costs and maintenance costs, depending on the nature of the waste, the complex configuration of the equipment has a problem that the composition of the complex, the thermal efficiency is poor.

In addition, for gasification melting of waste, a method such as flammable gas or electricity heating is used to maintain the temperature in accordance with the conditions of gasification reaction zone and melting zone, but the use of such energy source is economical of gasification melting treatment method of waste. It is a cause to reduce.

The present invention is to solve the conventional problems as described above, to treat the waste having a variety of properties and properties in one unit integrally configured, by using the waste oil as the main energy source to burn the combustible components in the waste gas It is an object of the present invention to provide a complex waste gasification melting apparatus which uses a non-combustible component at high temperature to be detoxified in the form of slag.

In order to achieve the above object, the present invention, the gasification melting furnace and the product gas outlet and the slack outlet formed in the upper and lower ends, respectively; A product gas moving part formed to be in communication with the product gas outlet at an upper side of the gasification melting furnace; A turning part formed at a lower side of the product gas moving part in communication with an inner diameter larger than an inner diameter of the product gas moving part, and having first and second inclined surfaces formed at a connection part of the product gas moving part and the slag forming part, respectively; Wow; A slack forming portion formed in communication from the lower side of the turning portion to the slack outlet, having an inner diameter smaller than the inner diameter of the turning portion, and forming a third inclined surface and bending to one side; A waste oil inlet tube, a liquid waste inlet tube, and a sludge waste inlet tube each inserted horizontally into the turning unit to inject waste oil, liquid waste, and sludge phase waste into the inner wall of the turning unit; And a solid waste inlet tube inserted into the slack forming unit for injecting solid waste into the waste.

1 is a schematic cross-sectional view showing the configuration of a complex waste gasification melting apparatus according to the present invention,

2 is a cross-sectional view taken along line AA ′ of FIG. 1 according to the present invention;

3 is a cross-sectional view taken along line B-B 'of FIG. 1 according to the present invention;

4 is a conceptual diagram showing the gas behavior inside the composite waste gasification melting apparatus according to the present invention,

5 is an enlarged conceptual view illustrating gas behavior in a turning part of a composite waste gasification melting apparatus according to the present invention.

<Description of the code | symbol about the principal part of drawing>

10 gasification furnace 11 product gas outlet

12: Slack Outlet 13: Slack Tap

20: product gas moving part 30: turning part

31, 32: 1st, 2nd inclined surface 34: Waste oil input pipe

35: liquid waste input pipe 36: sludge waste input pipe

40: slack forming portion 42: third inclined surface

44: solid waste input pipe 46: burner

50: quench bath

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

1 is a schematic cross-sectional view showing the configuration of a composite waste gasification melting apparatus according to the present invention, Figure 2 is a cross-sectional view taken along the line A-A 'of Figure 1 according to the present invention, Figure 3 is B of Figure 1 according to the present invention -B 'is a cross-sectional view. On the other hand, Figure 4 is a conceptual diagram showing the gas behavior inside the composite waste gasification melting furnace according to the present invention, Figure 5 is a conceptual diagram showing the gas behavior in the turning portion of the composite waste gasification melting apparatus according to the present invention.

The complex waste gasification melting apparatus according to the present invention supplies various wastes together with an oxidant to the gasification melting furnace 10 to gasify the combustible components in the waste, and to dissolve the non-combustible components in the slack, waste having various properties and physical properties. Can be processed continuously in a single device.

As shown in FIG. 1, in the gasification melting furnace 10 of the present invention, a product gas outlet 11 and a slack outlet 12 are formed at an upper end and a lower end, respectively. It consists of the gas moving part 20, the turning part 30, and the slack formation part 40. FIG.

The product gas moving part 20 positioned inside the upper portion of the gasification melting furnace 10 has a constant inner diameter in the longitudinal direction and is formed to communicate with the product gas outlet 11.

The turning part 30 communicating with the lower side of the product gas moving part 20 communicates with the slack forming part 40 at a lower portion thereof, and is larger than the inner diameters of the product gas moving part 20 and the slack forming part 40. Has an inner diameter

A first inclined surface 31 having an inclined side facing downward is formed at a connection portion with the product gas moving part 20, and a second inclined surface 32 having an inclined side facing upward at a connection portion with the slack forming portion 40. Form.

And between the first inclined surface 31 and the second inclined surface 32, the waste oil inlet tube 34, the liquid waste inlet tube 35, and the sludge waste inlet tube 36 are sequentially installed from the upper inner side.

2 and 3, a plurality of waste oil input pipes 34 and liquid waste input pipes 35 are installed at opposing positions, and the sludge-like waste input pipes 36 are installed at a predetermined angle in all directions. And the liquid waste inlet pipe 35 is preferably installed below the waste oil inlet pipe 34.

These input pipes are inserted horizontally into the turning part 30, respectively, and are installed in the tangential direction of the inner diameter of the turning part 30 so that wastes are injected into the inner wall surface of the turning part 30, and among these, the waste oil input pipe 34 Is formed while forming a predetermined angle with the tangent of the turning part 30.

On the other hand, the slack forming portion 40 is formed to communicate from the lower side of the turning portion 30 to the slack discharge port 12, has an inner diameter smaller than the inner diameter of the turning portion 30, the third inclined surface 42 It is formed to be folded to one side.

And the solid waste input pipe 44 is inserted into one side of the slack forming portion 40 to inject the solid waste into the inside.

The solid waste is introduced from the slack forming unit 40 to be processed in the solid phase, and the molten slack flows down the third slope 42 and is discharged to the slack outlet 12.

Meanwhile, the gasification melting furnace 10 according to the present invention has a slack tab 13 extending downwardly inside the slack outlet 12, and a quench tank 50 in which cooling water is stored is installed below the slack outlet 12. The molten slag is cooled in the quench tank 50 via the slag tab 13 and then discharged to the slag outlet 12.

In addition, the slag solidification prevention burner 46 is preferably installed on the slag tab 13 to maintain the temperature so that the molten slag does not solidify easily flows into the quench tank (50).

The complex waste treatment process of the complex waste gasification melting apparatus according to the present invention configured as described above is as follows.

Typically, the waste oil is preheated to 60 ℃ ~ 300 ℃ in the storage tank according to the viscosity characteristics and then metered by the flow meter is injected into the waste oil inlet pipe 34, at this time sprayed by gas such as steam or air into the gasification melting furnace 10 It is preferred to be introduced.

Referring to FIG. 4 in accordance with the present invention, the turning part 30 of the gasification melting furnace 10 has a wider inner diameter than the product gas moving part 20 and the slack forming part 40 of the upper and lower waste oil input pipes ( 34) The waste oil sprayed to 34 drops down while turning downward due to the characteristics of the fluid flow. Naturally, the waste oil is gasified.

The first inclined surface 31 is formed at the connection portion between the turning portion 30 and the product gas moving portion 20, and the second inclined surface 32 is formed at the connection portion between the turning portion 30 and the slack forming portion 40. It is advantageous for the turning of the gas downwards.

The gasified waste oil which descends while turning in the downward direction transfers heat to the slack forming portion 40 more precisely under the gasification melting furnace 10. On the other hand, the waste oil input amount is appropriately adjusted by measuring the internal temperature by a thermometer (not shown) installed in the gasification melting furnace 10.

Referring to FIG. 5, liquid waste such as waste acid and waste alkali is sprayed by a gas such as water vapor or air to be sprayed into the liquid waste inlet pipe 35. The gasification is performed while turning downward along the swirl flow formed by the waste oil. do.

Therefore, the sprayable wastes such as waste oil and liquid waste are gasified by spraying in a tangential direction on the wall surface of the turning part 30, and the gasified waste oil and liquid waste are lowered while turning downward in accordance with the fluid flow characteristics so that the gasification furnace ( 10) Transfer heat to the bottom.

On the other hand, the sludge waste is preheated to 60 ℃ ~ 300 ℃ in the storage tank according to the viscosity characteristics and then metered by the flow meter is introduced into the sludge waste waste inlet pipe 36 and at this time it is introduced in the tangential direction together with water such as steam or air. . The introduced sludge is gasified and melted while contacting the flow turning from the top to the bottom and flowing down the second inclined surface 32.

The solid waste is metered into the solid waste inlet pipe 44 of the slack forming unit 40. The injected solid waste is accumulated inside the slack forming portion 40 and is heated by a high temperature gas flowing downward from the top, so that the combustible material is gasified, and the non-combustible material melts and flows downward along the inclined third inclined surface 42. Get off. The molten slag is discharged to the slag outlet 12 through the slag tab 13 and is cooled by water in the quench tank 50 provided at the bottom.

Particularly, according to the present invention, the molten slag flowing down the third inclined surface 42 by the slag solidification prevention burner 46 installed on the slag tab 13 may flow well into the quench tank 50 without solidifying. Keep the temperature

Fuel gas such as hydrogen and carbon monoxide produced through the above process is discharged to the product gas outlet 11 at the top of the gasification melting furnace 10 and then cooled, and used as fuel after removing particulate matter.

Although the present invention has been illustrated and described with respect to certain preferred embodiments, the present invention is not limited to the above-described embodiments, and a person skilled in the art to which the present invention pertains has the present invention set forth in the claims below. Various modifications may be made without departing from the spirit of the invention.

As described above, the composite waste gasification melting apparatus of the present invention is capable of treating wastes having various properties and properties in a single unit in a single unit, which is integrated with one another, thereby reducing production facilities and improving productivity. have.

In addition, the production of fuel using waste has the effect of reducing energy costs and preventing secondary environmental pollution that may occur during waste treatment because the non-combustibles are treated in the form of slag.

Claims (5)

A gasification melting furnace having product gas outlets and slack outlets respectively formed at upper and lower ends thereof; A product gas moving part formed to be in communication with the product gas outlet at an upper side of the gasification melting furnace; A turning part formed at a lower side of the product gas moving part so as to communicate with an inner diameter larger than an inner diameter of the product gas moving part, wherein first and second inclined surfaces are formed at a connection part of the product gas moving part and the slag forming part, respectively; Wow; A slack forming portion formed in communication from the lower side of the turning portion to the slack outlet, having an inner diameter smaller than the inner diameter of the turning portion, and forming a third inclined surface and bending to one side; A waste oil inlet tube, a liquid waste inlet tube, and a sludge waste inlet tube each inserted horizontally into the turning unit to inject waste oil, liquid waste, and sludge phase waste into the inner wall of the turning unit; A solid waste inlet tube inserted into the slack forming unit for injecting solid waste into the inside; Complex waste gasification melting apparatus comprising a. The complex waste gasification melting apparatus according to claim 1, wherein the gasification melting furnace is provided with a slack tab inside the slack outlet, and a quench tank in which cooling water is stored below the slack outlet. The complex waste gasification melting apparatus according to claim 1, wherein the slack forming unit is provided with a solidification prevention burner to prevent solidification of the slack moving around the slack outlet of the gasification melting furnace. The composite waste gasification melting according to any one of claims 1 to 3, wherein the waste oil input pipe, the liquid waste input pipe, or the sludge waste input pipe are installed in a tangential direction of the inner diameter of the turning part. Device. The complex waste gasification melting apparatus according to any one of claims 1 to 3, wherein the waste oil input pipe is installed at an angle with a tangent of the inner diameter of the turning part.