KR100407226B1 - A dry reactor for fuelizing of inflammable waste - Google Patents

Abstract

The present invention relates to a drying furnace for pulverizing combustible wastes by type, drying them in an optimal state, and mixing and mixing them with fuel.

In the drying furnace of the present invention, in the drying furnace 10 for crushing and drying combustible waste such as household waste, food waste, vinyl, plastic, sludge and the like,

A plurality of drying cylinders 11a and 11b incorporating a transfer screw 13 which rotates independently by individual drive motors 12 on the top, bottom, left and right sides,

On the support rollers 34a and 34b around the periphery of the cylindrical drum 31 having a plurality of screw pieces 32 projecting inwardly on the inner wall surface in the lower portion of the drying cylinders 11a and 11b at regular intervals. It has a rail (33a) (33b) guided by, and comprises a sprocket 37 connected to the drive motor 35 and the chain 36 on one side to constitute a mixer 30 that is rotated,

At the front end of each of the drying cylinders 11a and 11b, a screw conveyor 18 for supplying the combustible waste is mounted, and at the rear end, a transfer conveyor 20 for transporting the dried combustible waste to the mixer 30 is provided. Make up,

The discharge conveyor 39 is installed at the bottom of the rear end at the same time as the input device 38 for directly injecting additional combustible waste at the end of the mixer 30 connected to the transfer conveyor 20,

It is connected to the inlet portion of each drying cylinder (11a) (11b) and the mixer 30 to form a duct 23 for supplying hot air individually, the rear side is provided with an exhaust port 24,

The main body for heating the respective drying cylinder (11a) (11b) and the cylindrical drum (31) by supplying heat supplied from its own burner or incinerator while supporting the mixer 30 and the drying cylinder (11a) (11b) ( 50),

The operation of the drying cylinder (11a) (11b) and the mixer 30 is characterized by consisting of a control unit for individually controlling according to the combustible waste to be dried.

Description

A dry reactor for fuelizing of inflammable waste}

The present invention relates to a drying furnace for pulverizing combustible wastes by type, drying them in an optimal state, and mixing and mixing them with fuel.

In general, many sludges are generated in sewage treatment plants and wastewater treatment plants, and most of these sludges are treated by landfill or ocean dumping, which contaminates groundwater and soil from leachate and pollutes oceans. In line with the trend, our country is also trying to avoid landfilling or dumping at sea and deal with it in other ways.

Among them, the currently developed method is an incineration treatment method. Since sludge and food waste contain a lot of water, it requires a lot of energy to remove water during incineration. have.

In order to solve this problem, a method of manufacturing fuel by mixing general waste and sludge such as various household waste, paper, vinyl, plastic, and the like has been filed in Korean Patent Application No. 99-40332.

In other words, domestic waste such as organic waste (food waste), organic sludge, etc., combustible materials such as coal, moisture control materials such as sawdust, and molding materials such as clay or sand are added to a mixer, and mixed. The mixture obtained in the above process was compressed and molded into fuel pellets to obtain fuel pellets.

However, this conventional method produces food wastes or organic sludges because they contain a lot of water, and therefore, a large amount of moisture control material must be mixed, and since the moisture control material is low in calories, the molding materials are low in calorie. The burnt coal for fuel cannot be expected as a fuel.

In addition, as the function of the fuel decreases, in order to increase the combustion efficiency, a large amount of expensive condensing agents such as sodium peroxide, potassium chlorate, potassium nitrate, etc. must be added, and a large amount of cost is required. There is a lung that will release a large amount.

The above-mentioned disadvantages are solved by crushing waste by type and drying it, then mixing with compressed sludge and controlling the amount of heat, and compression molding to obtain high quality solid fuel with optimum calorie value without combustion during combustion. It is an object of the present invention to provide a drying furnace for mixing and mixing the crushed waste in an optimal state to enable this.

1 is a partial perspective view of a drying furnace according to the present invention.

2 is a cross-sectional view of a drying furnace according to the present invention.

Figure 3 is a left side cross-sectional view of the drying furnace according to the present invention.

4 is a right sectional view of the drying furnace according to the present invention.

[Description of Symbols for Main Parts of Drawing]

10-drying furnace 11a, 11e-drying cylinder 12-drive motor

13-Feed screw 14-Shaft 15-Support bar

16-Wings 17-Scrapers 18-Screw Conveyors

20-Conveyor 21-Chute 22-Screws

23-Duct 24-Vent 30-Mixer

31-Drum 32-Screws 33a, 33b-Rails

34a, 34b-Support roller 35-Drive motor 36-Chain

37-Sprockets 38-Feeders 39-Discharge Conveyors

40-Duct 41-Vent 50-Body

The present invention for achieving the above object, in a drying furnace for crushing and drying the combustible waste such as household waste, food waste, vinyl, plastic, sludge, etc.,

It consists of a plurality of drying cylinders incorporating a feed screw that rotates independently by individual drive motors on the top, bottom, left and right,

The drying cylinder protrudes inward to the inner wall surface in the lower portion of the drying cylinder has a rail guided by the support roller in the front and rear around the circumference of the cylindrical drum provided with a plurality of screw pieces having a feeding angle at regular intervals, the driving motor and the chain on one side With the sprocket connected to make up the rotating mixer,

A screw conveyor for supplying the combustible waste is mounted at the front end of each drying cylinder, and at the rear end, a transfer conveyor for transporting the dried combustible waste to the mixer is provided.

A discharge conveyor is installed at the bottom of the rear end at the same time as the input device for directly injecting additional combustible waste at the end of the mixer connected to the transfer conveyor,

It is connected to the inlet of each drying cylinder and mixer to form a duct for supplying hot air individually, and the exhaust side is provided at the rear side,

While supporting the mixer and the drying cylinder to supply the heat supplied from its own burner or incinerator therein to configure a main body for heating each drying cylinder and the cylindrical drum,

The operation of the drying cylinder and the mixer is achieved by configuring a control unit individually controlled according to the combustible waste to be dried.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a partial perspective view of a drying furnace according to the present invention, FIG. 2 is a cross-sectional view of the drying furnace according to the present invention, FIG. 3 is a left sectional view of the drying furnace according to the present invention, and FIG. 4 is a right sectional view of the drying furnace according to the present invention. .

Most combustible wastes are organic wastes, such as food waste and sludge, which are currently the most difficult to handle, and high-calorie wastes, such as household waste such as paper, vinyl and plastics.

These wastes are crushed through each crusher.

Of course, the wastes subjected to the shredding process 10 are wastes having a specific volume and shape, such as vinyl, paper, and plastic food waste having a specific shape, and waste such as sludge does not need to be shredded.

When the crushing process 10 is completed, they are dried through a drying furnace 10.

The drying furnace 10 is provided with a plurality of drying cylinders (11a) (11b) in the upper, lower, left and right, the mixer 30 is installed in the lower portion thereof, these are surrounded by the main body 50, the heat of the drying cylinder (11a) 11b and the mixer 30 are evenly delivered.

The drying cylinders 11a and 11b have a structure in which a transfer screw 13 that rotates independently by an individual drive motor 12 is mounted therein, and the transfer screw 13 has a rotating shaft as shown in FIGS. 3 and 4. 14, a screw-shaped blade 16 formed by continuously bending a flat iron plate in a spiral shape is fixed to the rotation shaft 14 by a support bar 15, and a rotation shaft around the blade 16. The scraper 17 has a structure in which a plurality of scrapers 17 parallel to the direction (14) are mounted. At this time, the scraper 17 functions to apply flammable waste thinly to the inner wall surface of the drying cylinders 11a and 11b, and The wing 16 functions to transfer the flammable waste thinly spread on the inner wall surface of the drying cylinders 11a and 11b little by little. Of course, the conveying screw 13 is simply a general shape having a screw blade around the rotary shaft 14. It can also be configured as.

The screw conveyor 18 for supplying flammable waste to the upper end of the drying cylinder (11a) (11b) is connected and the conveying conveyor (20) for transporting the dried combustible waste to the mixer (30) is connected. . In addition, the ducts 23 for supplying hot air to the rear ends of the drying cylinders 11a and 11b are respectively connected, and an exhaust port 24 is provided at the front end. At this time, the front end and the rear end are blocked to allow the hot air to pass through the front drying cylinders 11a and 11b to the exhaust port 24, and only the conveying conveyor 20 is a screw conveyor 18 to prevent the hot air from leaking. ). That is, the chute 21 is formed at the rear lower portion of each of the drying cylinders 11a and 11b, and the conveying conveyor 20 having the screw 22 therein is connected to the horizontal to combustible wastes that are dried and discharged. 30).

On the other hand, the mixer 30 is provided with a plurality of screw pieces 32 having a conveying angle at a predetermined interval while protruding inward to the inner wall surface of the cylindrical drum 31, the rail 33a around the circumference of the drum 31 (33b) is installed is guided to the support rollers (34a) 34b installed on the lower side, the sprocket 37 is connected to the drive motor 35 and the chain 36 on one side.

In addition, the mixer 30 is configured in reverse with the drying cylinders 11a and 11b on the basis of the transfer direction for the efficiency of the transfer path of the dried combustible waste supplied from the drying cylinders 11a and 11b.

Therefore, the conveying conveyor 20 of the drying cylinders 11a and 11b is connected to the front end, and an input device 38 for directly injecting additional combustible wastes is connected. Is installed.

In addition, a duct 40 for supplying hot air to the rear end of the mixer 30 is connected, and an exhaust port 44 is provided at the front end. Hot air is heat of combustion of an incinerator or heat obtained from a separate burner.

On the other hand, one side of the drying furnace 10 is provided with a control unit for individually controlling the operation of the drying cylinder (11a) (11b) and the mixer 30 in accordance with the combustible waste to be dried.

Looking at the operating state of the drying furnace 10 of such a configuration as follows.

First, combustible wastes such as sludge and food waste which are not finely crushed or do not need to be crushed by a crusher not shown in the drawings are selected for the drying cylinders 11a and 11b to be introduced by type, and the water content or mixing ratio and According to the physical properties, the rotation speed of the screw conveyor 18 is set to adjust the supply amount, and the rotation speed of the feed screw 13 is set. At this time, it is also possible to adjust the drying rate by adjusting the amount of hot air supplied to the inside. The mixing ratio dried and mixed by the control operation of the control unit can be adjusted to have a desired amount of heat.

The combustible waste thus supplied is dried while passing through the transfer screw 13 inside the drying cylinders 11a and 11b and dried by hot air supplied by the duct 23. In particular, flammable waste such as sludge or food waste is thinly dried on the inner wall of the cylinders (11a) and (11b) by the scraper (17) of the transfer screw (13), and at the same time, the screw blade (16) is transported and dried thinly. Is dried by.

The dried combustible waste falls through the chute 21 and is collectively supplied to the mixer 30 by the transfer conveyor 20. At this time, combustible wastes that do not require a drying process are supplied together through a separate supply device.

The mixer 30 is mixed while conveying the combustible waste injected while the transfer blade piece installed on the inner wall surface rotates while the drum 31 rotates by the drive motor 35.

That is, the injected flammable wastes are lifted upward by the transfer blade pieces and sprinkled to the bottom, and at this time, the hot air supplied through the duct 40 dries the flammable wastes falling again and thus mixes the inside of the mixer 30. The process and the drying process take place simultaneously.

The mixed combustible waste is discharged by the discharge conveyor 39 installed at the rear end of the mixer 30, and is molded into a predetermined shape by a molding apparatus not shown in the figure.

In addition, since the various bacteria contained in the organic material are sterilized by heat when dried as described above, they are formed into a solid fuel 14 so that they do not decay even when transported and stored for a long time.

In addition, during the mixing process, an additive for preventing corrosion and an additive for removing dioxin, that is, a material such as slaked lime may be mixed.

If you want to increase the calorific value, you can mix the sludge obtained in the printing factory, waste oil may be mixed with the surfactant.

As described above, the present invention selects the drying cylinders (11a) (11b) to be put into each type of combustible waste shredded by type, and the rotational speed of the screw conveyor 18 according to the water content or mixing ratio and physical properties through the control unit By setting and adjusting the supply amount and by setting the rotational speed of the feed screw, the mixed and finally provided solid fuel can have the best calorific value desired and a fuel which does not generate pollutants during combustion can be obtained.

Claims (3)

In the drying furnace 10 for crushing and drying combustible waste such as household waste, food waste, vinyl, plastic, sludge, etc., A plurality of drying cylinders 11a and 11b incorporating a transfer screw 13 which rotates independently by individual drive motors 12 on the top, bottom, left and right sides, On the support rollers 34a and 34b around the periphery of the cylindrical drum 31 having a plurality of screw pieces 32 projecting inwardly on the inner wall surface in the lower portion of the drying cylinders 11a and 11b at regular intervals. It has a rail (33a) (33b) guided by, and comprises a sprocket 37 connected to the drive motor 35 and the chain 36 on one side to constitute a mixer 30 that is rotated, At the front end of each of the drying cylinders 11a and 11b, a screw conveyor 18 for supplying the combustible waste is mounted, and at the rear end, a transfer conveyor 20 for transporting the dried combustible waste to the mixer 30 is provided. Make up, The discharge conveyor 39 is installed at the bottom of the rear end at the same time as the input device 38 for directly injecting additional combustible waste at the end of the mixer 30 connected to the transfer conveyor 20, It is connected to the inlet portion of each drying cylinder (11a) (11b) and the mixer 30 to form a duct 23 for supplying hot air individually, the rear side is provided with an exhaust port 24, The main body for heating the respective drying cylinder (11a) (11b) and the cylindrical drum (31) by supplying heat supplied from its own burner or incinerator while supporting the mixer 30 and the drying cylinder (11a) (11b) ( 50), Drying furnace for fueling the combustible waste, characterized in that configured to control the operation of the drying cylinder (11a) (11b) and the mixer 30 separately according to the combustible waste to be dried. 2. The transfer conveyor (20) according to claim 1, wherein the transfer conveyor (20) forms a chute (21) at the lower rear side of each drying cylinder (11a) (11b), and the chute (21) of the drying cylinder (11a) (11b) of each layer. Drying furnace for fueling the combustible waste, characterized in that it is provided in the structure to connect to supply the combustible waste discharged to the mixer (30). 2. The conveying screw (13) according to claim 1, wherein the conveying screw (13) has a blade (16) fixed by a support bar (15) around a rotating shaft (14) by spirally bending a flat iron plate. 14. A drying furnace for fueling combustible wastes, characterized in that a plurality of scrapers (17) are formed extending in the direction to apply the combustible wastes to the inner wall of the drying cylinders (11a) (11b).