KR830000891B1 - incinerator - Google Patents

Abstract

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Description

incinerator

1 is a longitudinal sectional view of one embodiment of an incinerator according to the present invention;

FIG. 2 is a front view as seen from the right side of FIG. 1 of a partition wall included in an incinerator. FIG.

3 is a left side view of a partition taken along line III-III of FIG.

The present invention relates to an incinerator for the combustion of a mixture of combustible materials and combustion air in gaseous or particulate form. The incinerator according to the invention is generally cylindrical, in which both ends are closed by an inlet wall having a central inlet for combustible material and combustion air and combustibles in gaseous or particulate form and an outlet wall having a central outlet for combustion products. It consists of an in casing, in which a partition wall dividing the inside of the casing into the inlet chamber and the outlet chamber is arranged, the inlet wall on the side facing the inlet chamber has a rounded cross section of the crystal surface has an annular groove surrounding the inlet hole.

The incinerator of this general type is already known, for example by German patent 1476475.

In the conventional apparatus, the outlet wall is funnel-shaped, and the central portion of the partition wall is formed of a conical casing whose outer side is curved toward the inlet chamber and the inner side is curved toward the outlet chamber, and the flow passage of the partition wall is separated from the outside of the partition wall. In the form of a hole in the conical casing.

It is an object of the present invention to provide an incinerator of the general type described above with improved combustion characteristics compared to the conventional apparatus described above.

The object of the present invention is achieved by the following structural shape, which is a feature of the present invention, unlike the same conventional device of the general form.

The characteristic feature of the present invention is the body shape of the concave side that the outflow wall is curved toward the outflow chamber, the central portion of the partition wall is formed of a conical casing that is curved toward the outflow chamber and curved toward the inner inflow chamber The partition wall is formed to have at least three edge grooves distributed in the outer circumference of the partition wall.

The disclosed combustion features of the present invention over conventional devices are due to the improved turbulence and expanding flow paths within the device obtained by the combined effect of the structural shape of the present invention. Thus, all of the above-mentioned structural shapes, in which the present invention differs from conventional devices, are intended to cooperate with each other in order to generate intense turbulence in the outlet chamber which expands the flow path in the device and intimately improves mixing. In contrast, the flow in the outlet chamber of a conventional apparatus was carried out without turbulence along a short passage from the holes in the septum to the outlet aperture. Furthermore, the shape and direction of the partitions and the grooves on the outer periphery of the partition have a long and very rough flow passage of all material from the inlet hole to the grooves on the outer periphery of the partition.

In the known devices, most of the material entering the inlet chamber through the inlet hole flows straight into the hole in the partition wall and does not cause any turbulent flow from the inlet chamber to the outlet chamber.

The apparatus according to the invention enables the combustion of various gaseous or particulate materials including carbon or carbon compounds in a complete way that the exhaust combustion gases are practically free of soot, carbon monoxide and hydrocarbon residues. The device can be applied in a variety of applications focused on the achievement of actual complete combustion or heat generation of combustibles in gaseous or particulate form.

The present invention will be described in detail with reference to the accompanying drawings.

The apparatus shown in FIGS. 1 to 3 has a casing with a generally cylindrical casing wall 1, the end of which has a central inlet 3 for combustibles in gaseous or particulate form with combustion air. Sealed by an inlet wall 2 and an outlet wall 4 with a central outlet 5 for combustion products. The partition wall 7 provided with the flow passage 6 is disposed in the casing wall 1 to divide the inside of the casing wall into the inflow chamber 8 and the outflow chamber 9.

The outflow wall 4 is in the form of a spherical dome, and its recessed side is directed toward the outflow chamber 9. The outflow wall 4 is integrally formed with the casing wall 1 as appropriate.

The inlet wall 2 is designed as a separate part that can be fixed to one end of the casing wall 1 using a suitable device member (not shown) and has an annular groove 10 surrounding the central inlet 3. The crystal surface of the groove 10 has a slightly rounded cross section, that is, a round arch shape. The central inlet 3 is located at the narrow end of the conical sleeve 11 whose outer surface is flatly joined to the annular groove 10. The free end of the sleeve portion 11 is used as a thermal protection device for the pipe 13 inserted into the sleeve portion 11 from the outside and the device is a mixture of combustion air and a combustible material in the form of gas or particles. An inward flange 12 is provided which is used for sucking in.

The partition 7 is in the form of a dish, the outside faces the outflow chamber 9 and the inside has a central portion 14 which is configured to form a conical casing facing the inflow chamber 8. This partition wall 7 is designed as a separate part which is fixed inside the casing wall 1 using the fixing member (not shown) of a suitable form. The outer rim of the partition 7 has at least three edge grooves 15 distributed evenly over the circumference and extending obliquely through the partition as shown in FIG. 3. These edge grooves together with the casing wall 1 form a flow passage 6 connecting the inlet chamber 8 with the outlet chamber 9.

In order to achieve as much combustion as possible in the device, the whole or part of the device part, i.e., the cylindrical casing 1, the inlet wall 2, the outlet wall 4 and the partition wall 7 or the whole, or at least face the inside of the device. It should be included over all or part of the surface of the surface, even on surfaces that are capable of catalyzing the oxidation of carbon and carbon compounds burning in the device. Suitable structural materials for one or more of the above mentioned device components are 20-30% chromium, 4-6% aluminum, 0-3% cobalt, the remainder being alloys of iron. When using such an alloy in this apparatus, a catalytically active alumina layer is formed on the alloy surface. On the one hand, at least some of the device components, i.e. the cylindrical casing wall 1 and the outlet wall 4, can be made of ceramic which can withstand severe temperature changes. Furthermore, it is also possible that at least some of the device components, namely the partitions 7 and the inlet walls 2, are made of a ceramic containing aluminum oxide fibers as the main component (eg at least 60% by weight).

A suitable application of the apparatus shown in FIGS. 1 to 3 is to use a heat generating insert in a central heating oil boiler combustion chamber in which the pipe 13 constitutes the nozzle pipe of a normal oil burner. In such a case, the mixture of oil and combustion air received through the pipe 13 is ignited and blown as flame from the pipe 13 into the inlet chamber 8 toward the central portion 14 of the partition 7. The combustion mixture is deflected toward the annular groove 10 in the inlet wall 2 with the generation of strong turbulence, after which the combustion mixture flows through the flow passage 6 into the outflow chamber 9. Inflow). Since the edge groove 15 in the partition 7 is inclined, the gas flowing into the outflow chamber 9 rotates around the longitudinal axis of the apparatus. Finally, the combustion product is transferred to the heating chamber of the boiler through the outlet 5 and discharged in communication at the end. Combustion mixtures and combustion products are produced as a result of the turbulence described above, and long-term, intimate contact is made on the catalytically active surfaces of the apparatus in the inlet chamber 5 and the outlet chamber 8 so that combustion is completed and discharged through the outlet port 9 The combustion products are free of soot, carbon monoxide or hydrocarbon mixtures.

Instead of being fed flammable oil-air mixtures from the oil burner, when the device is used as an insert in the heating chamber of the boiler, the device can be fed a mixture of carbon powder and air via a pipe (5). Moreover, the apparatus can also be used for the final combustion of combustible products containing exhaust combustion residues from the furnace, in which case the exhaust combustion residues are introduced with a special additional supply of combustion air through the inlet sleeve (13). do. The device extends through the inlet wall to the bottom of the inlet wall, which is sealed by a lid that can be removed from the bottom of the annular groove 10 because its longitudinal axis is arranged vertically and at the bottom of the inlet wall 2. It is preferable to provide a hole in the inlet wall thereof.

All non-combustibles that may be formed in the combustion in this device hit the casing during turbulence between the inlet wall 2 and the partition wall 7 and descend downward along the wall into the groove 1 and finally the opening of the inlet wall. It is stored through and the ash can be taken out by removing the lid.

Claims (1)

An approximately cylindrical end closed by both an inlet wall 2 having a central inlet 3 for combustible material in the form of combustion air and gas or particles and an outlet wall 4 having a central outlet 5 for combustion products. On the side facing the casing and the inflow chamber, which has an inner casing wall 1 and divides the inside of the casing into an inflow chamber 8 and an outflow chamber 9 and a partition wall 7 having a flow passage 6 is disposed therein. In the incinerator consisting of an inlet wall having an annular groove (10) surrounding the inlet circumference with a slightly rounded cross section, the domed outlet wall (4) having a concave surface curved toward the outlet chamber (9); The outside is curved toward the outlet chamber 9 and the inside is at least three edge grooves 15 in the central portion 14 of the partition 7 and the circumference of the partition formed by a conical casing that is curved toward the inlet chamber 8. Characterized in that it consists of a flow passage (6) of the partition having a distributed form Incinerator.

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