JP3134007U - Portable detoxification system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an apparatus for easily detoxifying a substance contaminated with a discarded incinerator or surrounding dioxin on the site.
A horizontal pyrolysis furnace in which contaminants are put into an inner pot and rotated while being heated from the outside, and a conveying device for carrying the contaminants into the pyrolysis furnace are provided and discharged during processing. A system that consists of a filter and bubbling tank for removing water vapor, gas, and dust that are installed in a trailer / truck platform, and can be carried anywhere to easily detoxify pollutants.
[Selection] Figure 1

Description

  The present invention relates to an apparatus for detoxifying components, soil, incineration ash and the like contaminated with dioxins generated during dismantling of a waste incinerator.

  Since waste disposal methods that release dioxins and other contaminants into the environment are no longer legally accepted, simple incinerators that have been used for many years cannot be used today. However, even after the suspension of use, the incinerator body, incineration ash, and surrounding soil remain contaminated with dioxins.

  Since it cannot be left as it is, it must be removed or detoxified in some way. Since there are strict regulations on the transfer of pollutants by dioxins, various measures are taken for removal and transfer. The caster of the furnace material covers the surface, the incineration ash is solidified with concrete, the steel frame of the furnace is peeled off with sand blasting, and the peeled material is hardened with concrete etc. Although the method of carrying and burying is taken, dioxins etc. are only detained and not detoxified.

  Another solution is to create a pollutant treatment facility with dioxin or the like next to the discarded incinerator and treat it at that location, but it takes a huge amount of money to create the facility. If the facility is to be used later, such a plan could be planned, but it is not practical for the purpose of simply treating the discarded incinerator and surrounding contaminants.

  A device for easily detoxifying a substance contaminated with a discarded incinerator and surrounding dioxins and the like on site is provided.

  A device that can be placed on the trailer platform, easily moved to the required location, and detoxifying the pollutant at that location.

  The equipment is a horizontal pyrolysis furnace that puts pollutants into the inner pot and rotates while heating from the outside, and a conveyor that pushes the pollutants into the pyrolysis furnace with a screw conveyor or piston. It has.

  In addition, it is equipped with a filter and bubbling device for removing water vapor, decomposition gas, and dust discharged during processing, and a collecting device for capturing a small amount of dust.

  According to the above device, all the pollutant treatment equipment is loaded on the trailer bed and can be easily carried and installed to the site of the discarded incinerator where decontamination work must be done. There is no need for very costly pre-treatment to carry and all can be processed on site.

  Since this device is large enough to be installed or loaded on a trailer platform for movement, it has a maximum length of 11.4 m, a maximum width of 2.4 m, and a height of 3.8 m including the platform.

  The equipment consists of a hopper that feeds pollutants, a transport device that feeds the pollutants into the pyrolysis furnace, and a pyrolysis furnace that insulates the rotary inner kettle and the outer kettle that heats it and the whole. Consisting of walls, the pyrolysis furnace can change the tilt angle when introducing pollutants, during pyrolysis operation, or when carrying out the treated substances.

  There is an exhaust gas outlet on the opposite side of the pyrolyzer's pollutant inlet, which is connected to a filter with a baffle to capture and remove flying tar and dust. A dust-collecting cyclone is connected to the tip of the filter, and its exhaust pipe is inserted into the water of the bubbling tank so that water vapor, water-soluble gas, and dust are trapped. It is connected to a bug filter to remove dust remaining on the surface.

  Wait until the temperature of the treated substance that has undergone the pyrolysis process drops to some extent, open the inlet, change the inclination angle of the pyrolysis furnace so that the inlet side of the pyrolysis furnace becomes lower, and rotate the inner pot The spilled treated material is received and carried out underneath.

  The portable pollutant detoxification system according to the present invention will be described with reference to the drawings. FIG. 1 is a conceptual diagram showing the entire system. A hopper 1 having a height of 60 cm for introducing pollutants and an opening diameter of 50 cm and a lower part thereof. A screw conveyor 2 is installed to feed contaminants into the pyrolysis furnace.

  The pyrolysis furnace 3 has a length of 4 m, an outer diameter of 1.9 m, and the inner pot 4 is made of iron having a diameter of 80 cm, a length of 2.8 m, and a thickness of 1 cm, and a diameter of 1.6 m so as to enclose it. There is an outer pot 5, and the outer side is wrapped with a heat insulator 6 having a thickness of 15 cm. Although not shown, a burner or an electric heater for heating the inner pot is incorporated inside the outer pot 5 and the temperature is raised to about 800 ° C. during the thermal decomposition operation.

  In order to change the inclination angle of the pyrolysis furnace from 0 ° to -15 °, 0 °, and 0 ° to 15 ° at the time of pollutant input, pyrolysis operation, and discharge of treated material, respectively, There is a hydraulic cylinder 7 installed.

A slide type lid 8 is attached to the pollutant input port of the pyrolysis furnace, and an exhaust gas discharge port 9 is connected to a filter 10 having a baffle plate on the opposite side. It is connected to a 2m dust collection cyclone 11. Further, the exhaust pipe 12 at the tip of the cyclone is placed in the water of a bubbling tank 13 having a volume of about 1 m ³ so that water vapor, cracked gas, and dust are captured. Two bubbling tanks are installed in parallel, and the exhaust pipes 12 are switched and used alternately so that the water can be replaced when the water in the bubbling becomes dirty. The outlet 14 of the bubbling tank is connected to a bag filter 15 having a volume of about 1 m ³ for removing a minute amount of dust.

The filter 10 has a diameter of 40 cm and a length of 1.2 m, and has a baffle plate in the middle, and is filled with something like a facet generated during metal cutting. The filter can be removed and the facet can be replaced as appropriate. This used facet, dust or used water in the bubbling tank is detoxified elsewhere.

  Wait until the temperature of the treated substance that has undergone pyrolysis has dropped slightly, open the inlet, change the inclination angle of the pyrolysis furnace so that the inlet side of the pyrolysis furnace is lowered, and rotate the inner pot The treated material that falls down is received by the lower bucket 16 and carried out.

  Although not shown in the drawing, the filter section is replaced with a secondary combustion furnace, and the tar content or dioxins coming out of the pyrolysis furnace are completely burned to form a low molecular gas. It is designed to be thermally decomposed.

  As explained above, if the portable pollutant detoxification system of the present invention is used, it can be carried anywhere by trailer, so the waste incinerator containing dioxin and the surrounding pollutants can be removed. It can be detoxified on site. It can solve the problems of discarded incinerators that are currently in trouble all over Japan.

The conceptual diagram which shows the whole portable detoxification system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hopper, 2 Screw conveyor, 3 Pyrolysis furnace, 4 Inner pot, 5 Outer pot, 6 Thermal insulator, 7 Hydraulic cylinder, 8 Sliding lid, 9 Exhaust gas discharge port, 10 Filter, 11 Dust collection cyclone, 12 Exhaust Pipe, 13 bubbling tank, 14 outlet of bubbling tank, 15 bag filter, 16 bucket,

Claims (2)

Put a substance contaminated with dioxin, etc., rotate while heating from the outside, rotate about 3m in length and about 0.8m in diameter with a horizontal inner pot and envelop it and turn it around to heat from the surroundings A pyrolysis furnace with an outer diameter of about 1.8m consisting of a large outer pot with a diameter of about 1.5m and a heat insulation wall with a thickness of about 15cm to wrap and insulate them as a whole, and input to carry contaminants into the pyrolysis furnace Hoppers, screw conveyors, and transport devices that push in with pistons, and the pyrolysis furnace can change the inclination angle when carrying in pollutants, during pyrolysis operation, and when carrying out treated substances The exhaust gas exhaust port of the pyrolysis furnace is connected to a filter containing a metal baffle plate, and after that, sandwiching a dust collection cyclone, steam, cracked gas discharged during the pyrolysis operation, Includes a volume 1 m ³ degree of bubbling tank for removing dust, and set in the carrier of collectively trailer truck across the compact, the maximum length 11.4 m, maximum width 2.4 m, height 3.8m A portable pollutant detoxification system characterized by being contained within.   The portable pollutant detoxification system according to claim 1, wherein the exhaust gas discharge port of the pyrolysis furnace is connected to a secondary combustion furnace placed in place of a filter.

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