KR820000283B1 - Method for incinerating waste products - Google Patents

Abstract

In the incineration of aforesaid pat. 282, the process is based leading back heat from the waste gases of the exothermic combustion process & starting the endothermic drying, degassing and gasification process; supplying air above the sluice elements(10a,10b) in order to accomplish the formation of a glowing ember bed of sufficient volume & temperature to ensure the maximum possible gasification of the waste material; and finally supplying combustion air for the combustion of the pyrolysis products.

Description

Waste Combustion Method

1 is a front sectional view on the central axis of the combustion apparatus according to the embodiment of the present invention.

2 is an axial cross-sectional view of the central side of the first burner.

TECHNICAL FIELD The present invention relates to a combustion method, and more particularly to a method for efficiently and efficiently burning solid or liquid-containing waste. In general, a known combustion method of burning wastes includes a pyrolysis chamber at the top and a combustion chamber at the bottom thereof, the lower combustion chamber being surrounded by an inclined grate face, where the packing is supported by the pyrolysis chamber on the grate face and introduced above the grate. The solids are melted by burning with a combustion flame, in which case the grate forms an upper closure of the slag chamber, in which the slag formed by pyrolysis in the combustion chamber is introduced into the molten phase and cooled at the bottom of the drip tray. Part of the disposal of the combustion chamber is directed above the pyrolysis chamber to form pyrolysis gas, which is guided out of the apparatus to cool and the corrosive components are separated to act as participant. That is, the pyrolysis gas withdrawn from the top of the pyrolysis chamber is cooled outside and the liquid components are separated in the separator, and the components that cannot be condensed are cooled by the countercurrent flow of pyrolysis gas containing hot impurities before being used again as combustion gas. .

The disposal of the combustion chamber introduced into the pyrolysis chamber transfers waste heat from the gasifier and combustion air supplied under the grate to the outside of the device, and separate waste heat is used and usually used because of the external heat consumption before the waste is discharged through communication. The dust is removed via the structure of.

All kinds of wastes are processed by the apparatus and transferred to molten slag. In this way, when guided to the countercurrent of waste and gas in the pyrolysis chamber, the waste gas is partially returned through an external heat exchange and gas purifier. Or complete combustion is realized and therefore is very complex and economically undesirable.

The present invention has been made in view of the above-mentioned, all kinds of wastes are simply and economically pyrolyzed, continuous combustion is possible, and even in the case of wastes with low calorific value, the required temperature is always maintained accurately, and the capacity is simply increased. In addition, pyrolysis and combustion processes are carried out in the apparatus.

That is, the present invention is a combustion method of waste in which a solid or a liquid containing waste is dried and degassed in a pyrolysis chamber and combusted in a combustion chamber in which pyrolysis products and gases are collected. By passing through the short thermal conductivity to the center of the waste deposition through the endothermic drying, degassing and gasification process in the pyrolysis chamber, and operating the opening and closing member between the pyrolysis chamber and the combustion chamber to open and close to pass through the pyrolysis product, Sufficient volume and air to form a high temperature burning bed are supplied to achieve waste gasification as long as possible, so that the solid pyrolysis residue is subdivided to reduce its strength and to be completely combustible in the combustion chamber and to burn the pyrolysis product. Combustion air is supplied below the opening and closing member The combustion method of waste.

In the practice of the present invention, the cross sectional dimension of the pyrolysis chamber is 1000 mm or more, and the wall defining at least this dimension of the pyrolysis chamber supports the waste pipe of the combustion chamber directly connected to the pyrolysis chamber, and preferably crosses at right angles. Wall is used, in which case the width of the thread is 300-1000 mm and the ratio of the width and length of the thread is 1: 1: 1-5.

In this case, a waste pipe passage of the combustion chamber is formed on the pair of walls facing the pyrolysis chamber, and an opening and closing member is formed on the pair of walls facing the other chamber. And, depending on the selected shape and dimensions of the yellow cross section of the yarn, it is used for the heat transfer of the combustion gas to the solid waste, the length of the large wall surface and the slight heat transfer from the seal wall to the center of the deposit.

In order to carry out the process, the average minimum calorific value of solid waste is assumed, and this calorific value is generated by the provision of high calorific value waste in a simple manner, even for wastes with low calorific value and thus high calorific value fuel for maintaining combustion. Is saved.

An advantage of the practice of the present invention is that the combustion air is introduced through the opening and closing member, and is formed to exit the combustion chamber through the lower opening and is in communication with the combustion air supply.

In this case, the opening and closing member is preferably cooled by combustion air. And the air supply portion of the upper portion of the opening and closing member is connected to the pyrolysis chamber to supply air to the lower portion of the pyrolysis chamber.

An advantageous solution, in particular with regard to space savings and the functional safety of the method, is achieved by the direct interconnection of a plurality of pyrolysis chambers each having one common communication guide gas guiding pipe in the adjacent space for increased processing capacity.

A burner is provided for starting the combustion apparatus, and the burner can be disposed in front of and behind the opening and closing member in the flow direction. These burners are spherical in cross section for improvement in protection and access to the head of the insertion canal and are disposed on the opposite seal walls in the case of small widths.

Even if the waste does not reach the minimum calorific value, a support burner is installed to ensure the required combustion temperature in all cases. The support burner is similar to the starting burner in the pyrolysis chamber below the opening and closing member, and is disposed on the wall of the lower combustion chamber.

In the embodiment of the present invention, the center side line of the ash discharge chamber is displaced with respect to the center axis line of the upper pyrolysis chamber and the lower combustion chamber, and is disposed on the wide wall surface.

The height of the combustion apparatus is in this way supported low, taking into account the free space required for the passage and operation of ash discharge, and all passages are opened for ash discharge.

Sliding plates or sliding frames are advantageous for moving conical ashes under the lower chamber into the discharge chamber. In this case, the frame is received by the auxiliary shaft surrounding the frame on three sides below and above the unit value on the re-export side, while the frame is through the discharge chamber on the fourth side. As a result, the auxiliary insertion pipe receives a negative pressure similar to that of the closed combustion apparatus.

In the method according to the present invention, the waste heat of the exothermic combustion process of the hot combustion chamber is returned to the center of the waste deposition through a short heat conduction through the wall of the pyrolysis chamber pre-connected to the combustion chamber, and the situation is maintained in the pyrolysis chamber. Endothermic drying, degassing and gasification processes are carried out, and the opening and closing member in the transition section between the pyrolysis chamber and the combustion chamber is operated to open the solid and gaseous pyrolysis products to pass through, and the waste gas is preferably above the opening and closing member. Air is supplied for the formation of a burning volume of sufficient volume and sufficient high temperature to achieve, in which case the strength of the solid pyrolysis residue is considerably lowered, the solid pyrolysis residue is highly detailed, and the fines obtained when pulverized The size of the chips ensures complete combustion of the solid pyrolysis residues in the combustion chamber, and the combustion of the pyrolysis products For and is characterized in that combustion air is supplied to the lower side of the opening and closing member.

The still combustible pyrolysis residue which has reached the combustion chamber is completely burned in the combustion chamber. If the water content of the waste is insufficient, the waste may be wetted with water or steam before entering the pyrolysis chamber or part of the pyrolysis chamber. This measure ensures a complete water gas reaction.

The opening and closing member restrains the waste to form a sufficient amount of burning, and in the case of the movement of the opening and closing member, charges the combustion chamber to the desired size of the waste, and crushes and stacks the waste in the pyrolysis chamber. Satisfy three challenges to do. By the method, the endothermic and exothermic processes are spatially separated from each other, there is no mutual influence, and the whole process is performed through a simple adjustment process and a control process.

The heat cycle is formed in the apparatus by the method of the present application, and the waste heat is returned for the inherent process. As a result, the pyrolysis process and the combustion process are performed in the apparatus without charging the added fuel.

Such an embodiment of the present invention will be described below.

EXAMPLE

In FIG. 1, which is a configuration of an embodiment of the present invention, the containers 1a and 1b are rotated 180 degrees on the feed pipes 5a and 5b by means of the hardness devices 3a and 3b, and the waste is conveyed to the container 1a. The waste, which is supplied to (1b) and reaches the pyrolysis chamber by the hardness device and the feeding pipe, is collected on the opening / closing members 10a and 10b.

Burner insertion pipes 16a and 16b are provided at both sides of the pyrolysis chamber 8, and burner 14a and 14b inserted into the head are arranged such that the positive flame axis of the cone intersects at one point on the central axis. Excreted. After burner flame ignition, the heat supply is concentrated in the interior of the waste deposit, endothermic drying, degassing and gasification processes are introduced, and burner is shut off after the whole process starts. Down or horizontally and the opening and closing members 10a and 10b are operated downward or horizontally through outwardly connected handles or corresponding drive units (not shown) to enlarge or reduce the spacing 18 while in the pyrolysis chamber. Fill up the contents.

The movement of the indoor objects associated with the endothermic process acts on the grinding of the pyrolysis residue. The solid residue that has fallen through the gap 18 and dropped into the lower combustion chamber 12 is completely combusted in the combustion chamber when it contains the combustible portion. Combustion air required in the lower combustion chamber for combustion of the pyrolysis product flows out into the combustion chamber 12 through the connecting portions 9a and 9b in the pivotal axis range of the switchgear and simultaneously cools the opening and closing member, thereby And thermal overload in the lower combustion chamber.

The ash formed at the bottom of the combustion chamber is conveyed to the discharge chamber 20 by the discharge mold 19, and the cooled ash is conveyed to the conveying apparatus 21 of the ash via the discharge surface 22 connected to the bottom right of the ash discharge chamber. Is discharged into the container 24 of ash having the closure lid 26.

2 is a cross-sectional side view along the central axis of the combustion apparatus for carrying out the present invention, as shown in the drawing, a gas outlet pipe and an ash discharge chamber are formed, and both sides of the pyrolysis chamber are gas discharge pipe passages 28a. The 28b is disposed so that the wall of the pyrolysis chamber receives heat from both sides by heating the waste from the combustion chamber, and the waste passes through the filters 30a and 30b before entering the water conduit 32a.

On the other hand, the discharge chamber 20 disposed laterally has a spray device 20a for quick cooling of the ash, and the upper part 20b of the discharge chamber is connected to a water pipe (not shown), and the side auxiliary shaft 20c is provided. Is used for receiving the discharge frame at the unit value on the ash discharge side.

Claims (1)

In the combustion method of a waste in which a solid or additional liquid waste is dried and degassed in a pyrolysis chamber and combusted in a combustion chamber in which pyrolysis products and gases are collected, waste heat of the exothermic combustion process is carried out by a short heat conduction through the pyrolysis chamber wall. Transfer to the center of the waste deposition through the endothermic drying, degassing and gasification process in the pyrolysis chamber, operating the opening and closing member between the pyrolysis chamber and the combustion chamber to open and close to pass through the pyrolysis product, and continue the waste on the top of the opening and closing member as possible Sufficient volume and air to form a high temperature working phase are achieved to achieve gasification, so that the solid pyrolysis residue is subdivided to reduce its strength and to be completely combustible in the combustion chamber, and combustion air for combustion of the pyrolysis product Of the waste, characterized in that it is supplied below the opening and closing member Combustion method.

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