KR200325466Y1 - Apparatus for carbonization of waste woods - Google Patents

Abstract

The present invention relates to an apparatus for carbonizing a chip of waste wood supplied to a hopper (H) in a continuous process. An introduction tube 10 is connected to the hopper H to transfer chips. A carbonizer 20 for transferring chips in an adiabatic state is rotatably installed downstream of the introduction tube 10, and a combustor 30 for burning the chips and flowing back the combustion gas to the carbonizer 20 is carbonized. It is installed insulated downstream of the base 20. Discharge pipe 40 is connected to the combustor 30 to transfer the chip. In addition, the cooling means for wrapping at least a portion of the outer surface of the combustor 30 and the discharge pipe 40 in the cooling cylinders 31 and 41 and receiving the cooling water from the supplemental water tank 50 is used to cool the water. The gas combustion chamber 60 for reburning the gas in the carbonizer 20 is installed to branch between the introduction tube 10 and the carbonizer 20.

Accordingly, it can be utilized as an effective technique for producing economical recycled products by a continuous and stable process without causing pollution.

Description

Apparatus for carbonization of waste woods}

The present invention relates to the use of waste wood, and more particularly, to a waste wood carbonization apparatus capable of producing economically recycled products by a continuous and stable process without causing pollution.

Timber (waste materials) from construction timbers, sinks, cabinets, desks, and other household furniture consumes about 700 billion won a year, with only 30% recycling rate. As a result, there are some measures to mandate the recycling of waste wood, but some companies are actively utilizing it in terms of cost reduction.

For example, it is a relatively environmentally friendly recycling method to produce the particle board by crushing the waste wood first in an intermediate processing company and supplying it to the plywood recycling company in the form of wood chips. However, such recycled plywood is inexpensive, but it is difficult to upgrade the product, which limits the consumption of waste wood.

In addition to the use of waste wood, there are usually wood-based compressed fuel manufacturing, activated carbon production, fuel chip production process. In the case of fuel chip manufacturing, large waste wood such as wood, concrete frame and door can be injected without pretreatment, and the maintenance of the process is easy. Moreover, in recent years, the tendency to dispose of crushed wood chips in landfills, incinerators, and mountainous acid (illegal) is increasing due to the disposal cost problem, causing various problems.

It is an object of the present invention to provide a waste wood carbonization apparatus for producing economically recycled products by a continuous and stable process without causing pollution.

1 is a plan view showing the device according to the present invention as a whole,

FIG. 2 is a cross-sectional view of a portion A-A 'of FIG. 1;

FIG. 3 is a cross-sectional view of a portion B-B ′ of FIG. 1;

FIG. 4 is a cross-sectional view of the C-C ′ section of FIG. 1;

5 is a view showing the test results of the device according to the present invention.

Explanation of symbols on the main parts of the drawings

10: introduction pipes 12, 22, 24, 42: transfer screw

20: carbonization machine 30: burner

32, 62: wall 35, 65: burner

40: discharge pipe 50: refill water tank

60: gas combustion chamber 70: dust collector

In order to achieve the above object, the present invention provides a device for carbonizing a chip of waste wood supplied to a hopper (H) in a continuous process: an introduction pipe (10) connected to the hopper (H) to transfer chips; A carbonizer 20 rotatably installed downstream of the introduction pipe 10 and transferring chips in an adiabatic state; A combustor (30) installed downstream of the carbonizer (20), for combusting chips and flowing back combustion gases to the carbonizer (20); A discharge pipe 40 connected to the combustor 30 to transfer chips; Cooling means for wrapping at least a portion of the outer surface of the combustor 30 and the discharge pipe 40 in the cooling cylinder (31) (41), receiving the cooling water from the make-up water tank (50) to cool water; And a gas combustion chamber 60 which is installed to branch between the introduction pipe 10 and the carbonizer 20 and reburns the gas in the carbonizer 20.

As another feature of the present invention, the combustor 30 is provided with a burner 35 and a blower 33 for forming an inner space by the box-shaped wall 32 opened up and down, and generating hot air into the inner space. do.

As another feature of the present invention, the gas combustion chamber 60 forms a multi-part divided space in series with a plurality of porous walls 62 arranged in a plurality, and includes a reburn burner 65 in an upstream space.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment according to the present invention.

1 is a plan view showing the apparatus according to the present invention as a whole, Figure 2 is a cross-sectional view showing the AA 'section of Figure 1, Figure 3 is a cross-sectional view showing the section BB' of Figure 1, Figure 4 is a CC of Figure 1 It is sectional drawing which cuts off part. This is a device for carbonizing the chips of waste wood supplied to the hopper H in a continuous process and the same reference numerals are used for the same article throughout.

First, according to the present invention, an introduction pipe 10 connected to the lower end of the hopper H to transfer chips is installed. Inside the inlet pipe 10, a transfer screw 12 driven by a motor M1 is installed. Wood chips introduced to the hopper (H) are introduced into the carbonizer 20 described later by another transfer screw 12 by falling downward as shown in FIG. 2 at the downstream end of the introduction pipe (10). At this time, the drive source can increase or decrease the rotational force of the transfer screw 12 as the inverter motor M1. For example, when the thermal power is weak, the input of waste wood is increased, and when the thermal power is strong, it is suitable for the variable control which reduces the input of the waste wood.

In addition, according to the present invention, a carbonizer 20 for transferring chips in an adiabatic state is rotatably installed downstream of the introduction pipe 10. The carbonizer 20 serves as a kind of firing furnace and is manufactured in a cylindrical shape of about 8-10 m. The carbonizer 20 is configured to be rotatable by supporting a plurality of rollers 26 at at least two points. One roller 26 at each point is driven by the motor M3 to provide the rotational force of the carbonizer 20. The inner wall of the cylinder is tightly bonded to the heat insulating brick or tile as a whole, the inner space is provided with a transfer screw 24 of a size close to the inner wall. The transfer screw 24 may be joined to the inner wall of the carbonizer 20 to rotate integrally, or may be joined to the transfer screw 22 to rotate at a different speed than the carbonizer 20.

The upstream end of such a carbonizer 20 is connected to the above-described transfer screw 22 to communicate with the downstream end of the introduction pipe (10). Accordingly, the wood chips introduced into the upstream end of the carbonizer 20 from the hopper H to the transfer screws 12 and 22 are gradually transferred to the downstream side by the transfer screw 24. As will be described later, since the carbonizer 20 is in a high temperature state, the wood chip is in a carbide state (charcoal state) instead of a complete ash state during the transfer process.

In addition, according to the present invention, a combustor 30 combusting a chip and flowing combustion gas back to the carbonizer 20 is installed in a heat insulating state downstream of the carbonizer 20. The combustor 30 consists of a cylindrical upper part and a box-shaped lower part as shown in FIGS. 2 and 3. The upper portion of the combustor 30 rotatably supports the carbonizer 20 in a hermetic state via a bearing, and the lower portion of the combustor 30 describes a discharge chip which describes wood chips falling from the carbonizer 20. 40 to form a confined space for sending.

At this time, the combustor 30 is provided with a burner 35 and a blower 33 to form an inner space by the box-shaped wall 32 opened up and down, and to generate hot air into the inner space. The burner 35 and the blower 33 are installed in the lower part of the combustor 30, and form hot air in the inner space through the wall 32 in which the insulating bricks are stacked. As indicated by the arrows in FIG. 2, the hot air flows back from the combustor 30 to the carbonizer 20 in the opposite direction to the flow of the wood chips. Reference numeral 38 is a monitoring window that can see the interior of the combustor 30 through the wall (32).

In addition, according to the present invention is connected to the combustor 30 is provided with a discharge pipe 40 for transferring the chip. The discharge pipe 40 extends from the lower center of the combustor 30 to communicate with the outside through the wall of the factory building (not shown). A transfer screw 42 driven by a motor M4 is installed in the discharge pipe 40 to continuously discharge the wood chips collected in the combustor 30 to the outside of the factory building.

In addition, according to the present invention, at least a portion of the outer surface of the combustor 30 and the discharge pipe 40 is wrapped in the cooling cylinders 31 and 41, and cooling means for receiving water from the supplemental water tank 50 and cooling the water is used. do. One side of the cooling cylinder 31 is installed in the same cylindrical shape as the carbonizer 20 in the upper portion of the combustor 30, the other side of the cooling cylinder 41 is installed in a cylindrical shape accommodating the discharge pipe 40 in a predetermined length. . As shown in FIG. 3, the supplemental water tank 50 is installed above the cooling cylinders 31 and 41 so as to circulate the cooling water. Accordingly, overheating is prevented in the upper portion of the combustor 30 through which the carbonized wood chips are transferred and the discharge pipe 40.

At this time, the temperature sensor of the reference numeral 36 and the solenoid valve of the reference numeral 38 are installed in the cooling cylinder 31 of the combustor 30. This configuration is for the purpose of controlling the circulation of the cooling water when the water temperature of the cooling cylinder 31 is equal to or higher than the set value.

In addition, according to the present invention, the gas combustion chamber 60 for reburning the gas in the carbonizer 20 is installed to branch between the introduction tube 10 and the carbonizer 20. In FIG. 1, the conduit 66 is in communication with the upstream end of the carbonizer 20 and the gas combustion chamber 60. The carbonizer 20 is arranged horizontally, while the gas combustion chamber 60 is arranged vertically to form a right angle. On the downstream side (upper side) of the gas combustion chamber 60, a dust collector 70 (also called a cyclone) is connected, and an upstream end of the dust collector 70 extends outside through the factory roof.

At this time, the gas combustion chamber 60 forms a multi-part divided space in series with the porous walls 62 arranged in plural, and the burner 65 for reburning is provided in the upstream space. In FIG. 4, the wall 62 of the gas combustion chamber 60 is formed by stacking a heat insulating brick in a state in which the air vent 62a is formed, unlike other parts. The burner 65 uses an automatic burner as the main combustion means and a manual burner as the auxiliary combustion means (reference 68). The internal temperature of the carbonizer 20 is maintained at about 650 ℃ ~ 850 ℃, while the temperature of the gas combustion chamber 60 is maintained at a minimum of 850 ℃ to a maximum of 1,350 ℃. The temperature of the carbonizer 20 is controlled by the burner 35 of the combustor 30. When the temperature of the carbonizer 20 is set to 850 ° C or more, the wood chips do not become carbide but become ash. Since the gas of the carbide from the carbonizer 20 does not burn at a temperature of about 650 ° C to 850 ° C, a separate burner 65 is required to maintain the temperature of the gas combustion chamber 60 at 850 ° C to 1,350 ° C.

However, the internal temperature of the carbonizer 20 is initially raised to the burner 35, but once the carbonized wood chips (carbide) comes into consideration, the temperature of the carbide is further increased. If it is determined through the temperature sensor 37 of Figure 3 650 ℃ ~ 850 ℃ (preferably about 700 ℃) to maintain the input amount of the wood chip through the feed screw 12 in the current state. However, when it is determined that the temperature is lowered, the motor M1 of the transfer screw 12 is increased to increase the input amount so that the internal temperature is further increased by the thermal power of carbides. Of course, to control the temperature of the carbonizer 20 by the thermal power of the burner 35 and the combustion heat of the carbide it is good to set the design standard of the site according to the material or the storage state of the wood chip.

Since the carbide exiting the carbonizer 20 has to be left as a state of charcoal through the cooling process from then on, cooling means such as cooling bins 31 and 41 and supplemental water tank 50 are utilized. As shown in FIG. 3, a portion of the pipe of the cooling means may be guided into the discharge pipe 40 to directly spray a certain amount of cooling water onto the carbide. Accordingly, the carbide is collected outside the factory through the discharge pipe 40 in a state where it is no longer burned. In other words, it is very important to burn the instantaneous high temperature, but to preserve the original state.

Such activated carbon wood chips are pulverized to the desired size (mesh) and used as a compost material (by-product) for charcoal (fuel) or organic fertilizer. In the process of collecting wood chips, there is no cost, and the processed materials are recycled and sold again, thereby ensuring economic feasibility.

On the other hand, in the case of the gas generated in the process of generating carbide, although a kind of toxic gas, if the thermal power is at least 850 ℃ ~ 1,350 ℃ in the gas combustion chamber 60, even the material of dioxin is completely burned, so it can solve the environmental pollution problem. have. Figure 5 shows that the test results of the device according to the present invention is suitable for environmental conditions.

According to the above configuration and operation, the present invention has a useful effect that can produce economically recycled products by a continuous and stable process without causing pollution.

It is apparent to those skilled in the art that the present invention is not limited to the embodiments described, and that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the claims of the present invention.

Claims (3)

In the device for carbonizing the chip of the waste wood supplied to the hopper (H) in a continuous process, An introduction pipe 10 connected to the hopper H to transfer chips; A carbonizer 20 rotatably installed downstream of the introduction pipe 10 and transferring chips in an adiabatic state; A combustor (30) installed downstream of the carbonizer (20), for combusting chips and flowing back combustion gases to the carbonizer (20); A discharge pipe 40 connected to the combustor 30 to transfer chips; Cooling means for wrapping at least a portion of the outer surface of the combustor 30 and the discharge pipe 40 in the cooling cylinder (31) (41), receiving the cooling water from the make-up water tank (50) to cool water; And It is installed so as to branch between the introduction pipe (10) and the carbonizer 20, waste wood carbonization apparatus comprising a gas combustion chamber (60) for reburning the gas in the carbonizer (20). The method of claim 1, The combustor 30 is a waste wood, characterized in that it comprises an burner 35 and a blower 33 for forming an inner space by the box-shaped wall 32 opened up and down, and generating hot air into the inner space. Carbonization device. The method of claim 1, The gas combustion chamber (60) is a waste wood carbonization apparatus, characterized in that a plurality of perforated walls (62) arranged in series to form a multi-division space, the burner (65) for the reburn in the upstream space.