JPH073141Y2 - Waste incinerator - Google Patents

Description

[Detailed description of the invention] (Industrial application field) The present invention is mainly disposed in agricultural cooperatives, large-scale stores, hospitals, etc., and is used to incinerate used plastic greenhouses, packaging materials, and other plastics waste in-house. It concerns a thing incinerator.

(Prior Art) In order to incinerate industrial waste and municipal waste, large-scale equipment such as a multistage incinerator has been conventionally known, but such an incinerator is expensive and Since it takes up space, it is not suitable for incinerating plastics waste by installing it in agricultural cooperatives, large-scale stores, hospitals, etc.Incinerators for in-house incineration use incinerators for general waste treatment. It is the current situation.

(Problems to be solved by the invention) However, when a large amount of plastic waste is included in the waste, there is a problem that black smoke or toxic gas is generated due to lack of combustion air, and plastic disposal Development of an inexpensive waste incinerator that can incinerate in-house easily without generating black smoke or toxic gas is an issue for waste treatment.

(Means for Solving the Problems) The present invention was completed for the purpose of solving a problem as described above, and a melting hopper is provided at the bottom of the incinerator for recovering molten plastics. In addition to providing a plastics storage container, a reburning burner is attached to the base of a reburning cylinder that is installed in the ceiling of the incinerator and extends horizontally with a damper installed, and an exhaust stack is installed at the tip of the reburning cylinder. It is characterized in that the upper half of the re-combustion tube is partitioned by a plurality of removable filters.

(Function) In such a waste incinerator, if a combustible waste containing a large amount of plastic waste is put into the incinerator room and the combustible waste is incinerated by a conventional method, a part of it melts without burning. Then, it is stored and recovered in the molten plastics storage container through a hopper for recovering the molten plastics provided in the lower part of the incinerator. Combustion gas containing black smoke and toxic gas generated from plastic waste is extended horizontally from the ceiling of the incinerator, and the re-combustion cylinder with the upper half section divided by multiple filters is installed upright on the tip. While being discharged from the exhaust stack, black smoke and toxic gases are burned over time by the reburning burner attached to the base of the reburning cylinder while adjusting the residence time by the damper, and the residual soot Is collected by a filter provided in the upper half of the re-combustion tube, and the exhaust gas is discharged from the exhaust tube.

(Embodiment) Hereinafter, the present invention will be described in detail with reference to the illustrated embodiment.

(1) is an incineration chamber formed by filling sand (2) as a heat insulating material in a gap between a steel outer plate (1a) and an inner plate (1b),
(3) is a re-combustion cylinder extending horizontally from the exhaust port of the ceiling of the incinerator (1), and the re-combustion cylinder (3) is bent from the exhaust port of the ceiling as shown in the figure. The extension time of the combustion gas extends the residence time of the combustion gas. (4) is a reburning burner mounted toward the tip of the base of the reburning cylinder (3), and is a source of black smoke in the combustion gas due to the reburning burner (4). The remaining unburned carbon content and toxic gas are supposed to be reburnt in the reburning cylinder (3).
(5) is a plurality of replaceable filters provided so as to partition the upper half of the reburning cylinder (3), and the filter (5) is for collecting black smoke or soot in the combustion gas. If the clogging becomes severe, it can be removed and washed, or it can be replaced with a new one. Reference numeral (6) is an exhaust pipe installed upright at the tip of the reburning cylinder (3), and (7) is a damper mounted in the reburning cylinder (3). The combustion state of (1) is controlled.
(8) is a grate provided in the lower part of the incineration chamber (1),
(9) is a hopper provided below it for collecting molten plastics, (10) is a container for storing molten plastics discharged from the popper (9), and (11) is an incineration chamber (1 ) Is a blower connected to the crater (12), (13) is a door for charging combustible waste, and (14) is a support frame for the reburning cylinder (3).

In this structure, the charging door (13) is opened, and flammable waste containing a large amount of plastics waste is thrown into the incinerator (1) and ignited, and then blower (11) is used to incinerate the chamber. Combustible waste is incinerated while supplying combustion air into (1), but black smoke and toxic gases containing unburned carbon content are recombusted while being discharged from the exhaust stack (6). Since it passes through the cylinder (3), a plurality of filters (5) that are provided in the upper half of the reburning cylinder (3) and partition the reburning cylinder (3) and narrow down according to the combustion state The unburned gas fed while the residence time is adjusted by the damper (7) whose amount is adjusted is burned over time by the reburning burner (4). The soots that have not been burned by the reburning burner (4) are collected by the plurality of filters (5), and the combustion gas is discharged from the exhaust stack (6). If the filter (5) becomes clogged with soot, it can be taken out from the reburning cylinder (3) and washed for reuse or replaced with a new filter (5). Since a container (10) for storing molten plastics is provided in the container via a hopper (9) for collecting the molten plastics, the plastics waste that is put into the incineration chamber (1) and melted due to the rise in the furnace temperature is discarded. Since the material is stored in the molten plastics storage container (10) through the hopper (9) for recovering the molten plastics in the lower part of the incineration chamber (1), the load on the incineration chamber (1) is reduced, and In addition to being able to dispose of waste in a short time, it will open the way for the reuse of recovered plastics.

(Effects of the Invention) As is clear from the above description, the present invention provides a damper on the reburning cylinder extending horizontally between the incinerator and the exhaust stack, and partitions the reburning stack by a plurality of filters. Then, while adjusting the residence time of the combustion gas with the damper,
By the reburning burner attached to the base of the reburning cylinder,
Combustion in the re-combustion cylinder is ensured by re-combusting the unburned gas in the re-combustion cylinder divided by the filter over time. In addition, the removable filter installed in the reburning cylinder collects the remaining soot and also discharges the exhaust gas from the exhaust stack to prevent the soot from being discharged to the outside. Since it can be provided at low cost and the installation location can be small, this combined with the advantage that each agricultural cooperative, hospital, large store, etc. can be installed in the garden, solving the problem of conventional plastic waste disposal at home. It is of great practical value as a waste incinerator.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an embodiment of the present invention. (1): incinerator, (3): reburning cylinder, (4): reburning burner, (5): filter, (6): exhaust stack, (7):
Damper, (9): Hopper, (10): Container for storing molten plastics.

Claims (1)

[Scope of utility model registration request] 1. A container for storing molten plastics (10) is provided at a lower part of the incineration chamber (1) through a hopper (9) for recovering the molten plastics, and is provided at a ceiling portion of the incineration chamber (1). The burner (4) for reburning is attached to the base of the reburning cylinder (3) extending in the horizontal direction with the damper (7) attached, and the exhaust pipe (6) is attached to the tip of the reburning cylinder (3).
And the upper half part of the reburning cylinder (3) is partitioned by a plurality of removable filters (5).