# US 5,700,144 A · Method and apparatus for thermal treatment of solids

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- Number: US 5,700,144 A
- Document ID: US5700144A
- Status: Granted
- Kind: A
- Application number: 08/598,032
- Filed: 1996-02-07
- Granted: 1997-12-23
- Earliest claimed: 1995-02-08
- Assignees: Klockner-Humboldt-Deutz Aktiengesellschaft
- Inventors: Friedrich Schleimer; Dieter Ameis
- Web page: https://patentgrep.com/patent/US5700144A

## CPC

- F23G 5/085: {High-temperature heating means, e.g. plasma, for partly melting the waste}
- C03B 3/026: {by charging the ingredients into a flame, through a burner or equivalent heating means used to heat the melting furnace}
- C03B 5/005: {of glass-forming waste materials (disposal or transformation of solid waste in general B09B; treatment of radioactive waste G21F9/00)}
- C03B 5/235: Heating the glass (C03B5/02, C03B5/18, C03B5/225 take precedence)
- F23G 5/32: the waste being subjected to a whirling movement, e.g. cyclonic incinerators
- F23G: CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- C03B: MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES

## Abstract

During thermal treatment in a melting cyclone of solids that yield molten products at treatment temperatures, an exhaust gas is separated from the melt in an apparatus following the melting cyclone. The separation of the exhaust gas is implemented in a cyclone-like separating chamber that is fashioned such that a thermal after-treatment of the melt and/or of the exhaust gas can ensue therein in addition to the separation of the exhaust gas.

## Claims

### Claim 1

An apparatus for high-temperature treatment of fine-grained solids having a melting cyclone, and a separating chamber in which the reaction products obtained in the melting cyclone are introduced and separated from one another, comprising:
a separating chamber having a lateral admission opening;
a transfer element; and
a melting cyclone arranged such that the transfer element leads from an underside of the melting cyclone vertically obliquely downward in a curved path to the lateral admission opening of the separating chamber; and said separating chamber is fashioned cyclone-like forming a curved exhaust gas path and with a lower region for holding a molten bath of liquid reaction product, said lateral admission opening adapted for receiving the reaction products immediately above a surface of the molten bath contained within said lower region, and having an axial discharge opening for the exhaust gas, and a discharge opening for the liquid reactions product.

### Claim 2 (depends on 1)

An apparatus according to claim 1, wherein said lower region comprises a melt discharge region of the separating chamber, having a wall extending into the molten bath of liquid reaction product forming a submerged flow path in order to enable a gas-tight discharge of the liquid reaction product.

### Claim 3 (depends on 1)

An apparatus according to claim 1, wherein the separating chamber is arranged horizontally with a horizontal axis and the admission opening is located adjacent the exhaust gas discharge opening between the melt discharge opening and the exhaust gas discharge opening lying opposite the melt discharge opening.

### Claim 4 (depends on 3)

An apparatus according to claim 3, further comprising at least one top-blowing lance for thermal after-treatment of the melt and introduced into the separating chamber between the admission opening and the melt discharge opening.

### Claim 5 (depends on 3)

An apparatus according to claim 3, further comprising at least one auxiliary burner secantially laterally introduced into the separating chamber such that the effect thereof corresponds to that of a top-blowing lance, and a thermal after-treatment of the melt free-flowing in the region of the burner ensues.

### Claim 6 (depends on 1)

An apparatus according to claim 1, wherein the separating chamber is arranged horizontally with a horizontal axis and the admission opening is located adjacent the melt discharge opening, between the melt discharge opening and the exhaust gas discharge opening.

### Claim 7 (depends on 6)

An apparatus according to claim 6, further comprising at least one auxiliary burner for the injection of additional fuel arranged in the separating chamber between the admission opening and the exhaust gas discharge opening.

### Claim 8 (depends on 1)

An apparatus according to claim 1, wherein the separating chamber is vertically arranged with a vertical axis and is provided with an upper, axial exhaust gas discharge opening and the admission opening for the reaction products of the melting cyclone lies opposite the melt discharge opening.

### Claim 9 (depends on 1)

An apparatus according to claim 1, wherein said transfer element has a curvature part which is detachably connected to the melting cyclone and the separating chamber by screwed connections, so that this curvature part of the transfer element can be laterally withdrawn after undoing the screws.

### Claim 10 (depends on 1)

An apparatus according to claim 1, comprising burner combustion chambers that are laterally introduced into the melting cyclone and are lengthened toward the outside of the melting cyclone, such that a lengthening of a burner jet derives.

### Claim 11 (depends on 1)

An apparatus according to claim 1, wherein said curved exhaust gas path of said cyclone-like separating chamber is a helical path.

### Claim 12

In an apparatus for high-temperature treatment of fine-grained solids having a melting cyclone, a separating chamber in which the reaction products obtained in the melting cyclone are introduced and separated, and a transfer element connecting the melting cyclone and separating chamber, the improvement comprising:
arranging the melting cyclone above the separating chamber and connecting the transfer element to an admission opening in the separating chamber;
the transfer element being shaped to conduct the reaction products in a vertically curved downward path;
the separating chamber being a cyclone structure and holding a molten bath of liquid reaction product therein; and
the admission opening being arranged above said molten bath.

### Claim 13 (depends on 12)

The improvement according to claim 12, wherein said admission opening is laterally oriented.

### Claim 14 (depends on 12)

The improvement according to claim 12, wherein said separating chamber comprises a syphon-like molten bath outlet providing a trap to prevent passage of exhaust gas.

### Claim 15 (depends on 12)

The improvement according to claim 12, wherein the separating chamber is arranged horizontally with a horizontal axis and the admission opening is located adjacent the exhaust gas discharge opening between the melt discharge opening and the exhaust gas discharge opening lying opposite the melt discharge opening.

### Claim 16 (depends on 12)

The improvement according to claim 12, wherein the separating chamber is arranged horizontally with a horizontal axis and the admission opening is located adjacent the melt discharge opening, between the melt discharge opening and the exhaust gas discharge opening.
