KR101142256B1 - Ash supply apparatus for mixing-compressing municipal solid wastes and fire retardant wastes including high-moisture - Google Patents

Abstract

PURPOSE: A domestic waste cinder supplying device for mixing and pressing domestic waste cinder and incombustible wastes is provided to enhance the combustion efficiency of an incinerator by removing unburned materials of domestic waste cinder. CONSTITUTION: A domestic waste cinder supplying device(600) for mixing and pressing domestic waste cinder and incombustible wastes comprises a transferring case(610), a rotary shaft(620), a transferring screw(630), and a cooling unit(640). The transferring case comprises a cinder inlet hole(610a) in a side and a cinder outlet hole(610b) in other side. The domestic waste cinder transferred from an incinerator is inserted into the cinder inlet hole. The rotary shaft is mounted inside of the transferring case to be rotated. The transferring screw is formed in the outer circumference of the rotary shaft. The transferring screw transfers the domestic waste cinder inserted into the cinder inlet hole toward the cinder outlet hole. The cooling unit cools the domestic waste cinder inserted into the cinder inlet hole, the transferring screw, and a transferring case.

Description

ASH SUPPLY APPARATUS FOR MIXING-COMPRESSING MUNICIPAL SOLID WASTES AND FIRE RETARDANT WASTES INCLUDING HIGH-MOISTURE}

The present invention relates to a domestic waste incinerator supply apparatus for mixing and crimping a municipal waste incinerator and a flame retardant waste, and more particularly, to a municipal waste incinerator and a flame retardant waste capable of preventing a fire from being compressed when mixed with a domestic waste incinerator and a flame retardant waste. The present invention relates to a municipal waste incinerator feed device for mixing and pressing.

Urban waste is municipal waste, which is mainly composed of household waste and commercial waste, and includes municipal sewage treatment sludge, roadside cleaning and construction waste.

In recent years, the urban waste generation rate is increasing year by year due to the trend of mass production and the increase of population due to the industrial development.

These various municipal wastes can be broadly divided into combustible wastes (hereinafter referred to as 'living wastes') and flame retardant wastes such as food waste, sewage sludge, and livestock manure. Waste accounts for about 20% to 20%.

These municipal and flame retardant wastes are usually collected separately and incinerated in different systems.

This is because the flame retardant waste has a moisture content of about 50 to 90%. Since the leachate generated from the flame retardant waste may contaminate the environment such as soil and water quality, a drying process, which is a process to reduce the moisture content before incineration, is essential. After roughing it should be incinerated and landfilled.

As such, household wastes and flame retardant wastes have different properties, and each of them has to be incinerated and landfilled separately in different systems, which is incomplete according to the high water content of the flame retardant wastes when incinerated by injecting flame retardant wastes into the incinerator of household wastes Combustion generates large amounts of dioxins and air pollutants.

For this reason, conventional household waste and flame retardant waste have to be treated separately, and when treating both waste separately, various problems will occur as follows.

First, since separate facilities and locations are required for the domestic waste and the flame retardant waste, this has a problem of increasing the overall cost of waste treatment equipment.

Second, the domestic waste is incinerated in the incinerator, discharged to the incinerator ash, the heat and incineration unburned in possession of the incinerator is discarded as it is, there was a problem that the energy efficiency and combustion efficiency is reduced.

Third, in order to dry the flame retardant waste, there is a problem that a separate heating means is required, and a separate raw material for heating is supplied.

This conventional problem is due to the water content of the flame retardant waste. In other words, for incineration of mixed living and flame retardant wastes, the most important factors are to minimize the moisture content of the flame retardant waste and to maximize the combustion efficiency of the flame retardant waste having the minimum moisture content. Although it has been solved by the system, there have been no examples of the application of living and flame retardant waste incineration systems or the processing of wastes supplied to such systems.

In particular, the use of municipal waste incineration that is disposed as it is, although it is possible to improve the combustion efficiency of the flame retardant waste, it is a fact that it is discarded as it is, the use of household waste requires a special processing process before that.

That is, since the municipal waste incinerator discharged from the incinerator is in a high temperature state of about 500 ℃, there is a problem that the risk of fire is great if used as it is.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as adhering to the prior art already known to those skilled in the art.

In order to solve these problems, the present invention minimizes the risk of fire by cooling the high-temperature municipal waste incinerator when the municipal waste incinerator is used as a combustion accelerator of the flame-retardant waste for incineration of both domestic and flame-retardant waste. It is an object of the present invention to provide a municipal waste incinerator feeder for mixing and compressing municipal waste incinerators and flame retardant wastes.

In order to achieve the above object, the municipal waste incinerator supply apparatus for mixing and compressing the municipal waste incinerator and the flame retardant waste according to the present invention is provided with incinerator ash inlet on one side so that the municipal waste incinerator is transported from the incinerator and the incinerator is on the other side. A transfer case provided with an outlet; A rotating shaft rotatably mounted inside the transfer case; A conveying screw formed on an outer circumferential surface of the rotating shaft so that the incineration ash introduced into the incineration ash inlet may be conveyed in the incineration ash outlet direction; And a cooling unit for cooling the incineration ash, the transfer screw, and the transfer case flowing into the incineration ash inlet, wherein the incineration ash outlet is connected to the iron piece separation duct, and a magnetic separator is installed at one side of the iron piece separation duct. The sorting machine includes a rotating body connected to the rotating motor via a pulley to rotate, a magnet mounted on an outer circumferential surface of the rotating body, and a scraper for guiding the iron pieces separated by the magnet in one direction. .

The cooling unit may include a cooling water spray nozzle mounted at one side of the incineration ash inlet, and an inner water cooling chamber penetrating the inside of the rotating shaft.

The cooling unit is characterized in that it comprises an outer water cooling chamber surrounding the outer peripheral surface of the transfer case.

Cooling water of the cooling unit endotherm from the domestic waste incineration ash is hot water or vaporized is supplied to the waste heat boiler.

delete

delete

An iron piece moving path and an incineration ash moving path are formed at the end of the iron piece separating duct, and the scraper is installed on the iron moving path.

The incineration ash moving path is divided into a first incineration ash moving path and a second incineration ash moving path, and the first and second incineration ash moving paths are characterized in that the opening and closing degree is controlled by a slide gate.

The slide gate is characterized in that the opening degree of the second incineration ash moving path is adjusted according to the amount of the flame retardant waste mixed with the municipal waste incineration ash.

The present invention can achieve the following effects due to the above technical configuration.

First, there is an advantage that can minimize the risk of fire that can occur when recycling high-temperature household waste incineration.

 Second, by classifying and removing unburned materials such as iron pieces contained in domestic waste incineration ash, there is an advantage that can improve the combustion efficiency in the incinerator later.

Third, there is an advantage to improve the energy efficiency by recycling the cooling water of the high temperature used to cool the municipal waste incineration ash to the waste heat boiler fluid.

Fourth, since the sorting of the municipal waste incineration ash, part of it is provided to mix and compress with the flame retardant waste, the amount of municipal waste incineration waste is reduced, as well as there is an advantage that can reduce the cost incurred in treating such incineration ash.

1 is an overall configuration of the incineration system for living and flame retardant waste to which the present invention is applied;
2 is a side view of an incinerator which is a main part of a living and flame retardant waste incineration system to which the present invention is applied;
3 is a perspective view of a fixed grate and a cooling water supply pipe of an incinerator which is a main part of a living and flame retardant waste incineration system to which the present invention is applied;
4 is a view showing the installation state of the driving grate of the incinerator which is a main part of the living and flame retardant waste incineration system to which the present invention is applied;
5 is a view showing the installation state of the cooling water supply pipe of the incinerator which is a main part of the living and flame retardant waste mixing incineration system to which the present invention is applied,
Figure 6 is a view showing a flame retardant waste storage and unmanned automatic metering of the main parts of the living and flame retardant waste mixing incineration system to which the present invention is applied,
FIG. 7 is a view illustrating a nozzle device dedicated to living and flame retardant waste incinerators, which transfers and sprays combustible gas and dehydration liquor which are a main part of the living and flame retardant waste incineration system to which the present invention is applied;
8 is a view showing a dryer which is an essential part of a living and flame retardant waste incineration system to which the present invention is applied;
9 is a view showing a municipal waste incineration ash supply apparatus for mixing and pressing the municipal waste incineration ash and flame retardant waste of the present invention,
10 is a side view of the incineration ash and flame retardant waste mixing compactor dedicated to living and flame retardant waste mixing incineration system to which the present invention is applied;
11 is a front view of an incineration material and a flame retardant waste mixing compactor dedicated to living and flame retardant waste mixing incineration system to which the present invention is applied;
12 is a cross-sectional view along AA direction of FIG. 11;
Figure 13 is a plan view of the incineration ash and flame retardant waste mixer, dedicated to living and flame retardant waste mixing incineration system to which the present invention is applied,
14 is a view showing a combustion air supply system which is a main part of the living and flame retardant waste incineration system to which the present invention is applied;
15 is a cross-sectional view along AA direction of FIG. 14;
16 is a flow chart of the life and flame retardant waste mixing incineration method to which the present invention is applied,
17 is a flow chart of the main part of the method for incineration of life and flame retardant waste mixing to which the present invention is applied;
18 is a view showing a semi-dry reaction tower which is a part of the living and flame retardant waste incineration system to which the present invention is applied.

Hereinafter, with reference to the accompanying drawings, the municipal waste incinerator and the apparatus for supplying household waste incinerator for mixing and compressing the domestic waste incinerator and the flame retardant waste according to the preferred embodiment of the present invention, and the living and flame retardant mixed incineration system to which the present invention is applied, and a method thereof Explain.

1 is a block diagram of a living and flame retardant waste incineration system to which the present invention is applied. As shown in FIG. 1, the municipal and flame retardant waste incineration system includes a municipal waste repository 100, an incinerator 200, a flame retardant waste repository 300 and a dryer 400.

Household waste storage 100 is buried underground, it is preferable that the top is buried so as to protrude about 30cm from the ground. A perspective hole (not shown) may be formed at one side thereof so that the amount of household waste stored in the household waste storage 100 may be visually checked, and the household waste stored in the household waste storage 100 may be automatically quantified. It is transferred to the incinerator 200 by the feeder 10. The amount of household waste to be transported is preferably measured in advance in consideration of the state of the incinerator 200 and the like.

2 to 5, an incinerator applied to a living and flame retardant waste incineration system will be described.

The incinerator 200 receives the municipal waste from the municipal waste storage (see FIG. 1) and functions to incinerate it, and determines the structure and material of the grate in consideration of the incineration efficiency.

Incinerators of domestic and flame retardant waste incineration systems have a four stage water-cooled grate.

As shown in Figure 2 and 3, this four-stage water-cooled grate is the lower water cooling jacket 210, the fixed grate 220, the driving grate 230 and the cooling pipe 240 forming the bottom of the incinerator. Include.

The lower water cooling kit 210 is formed to be inclined. On one side of the inclined lower water cooling jacket 210, the fixed grating 220 is fixed in the horizontal direction, such a fixed grate 220 has a four-stage structure.

That is, the fixed grate 220 is the first fixed grate 222, the second fixed grate 224, the third fixed grate 226 and the third installed at regular intervals in the vertical direction of the inclined lower water cooling jacket 210 It includes four fixed grating 228, this fixed grating 220 is made of refractory.

In addition, the first fixed grating 222, the second fixed grating 224, the third fixed grating 226, the fourth fixed grating 228 has a stepped structure for the inclined lower water cooling jacket 210, This is to divide the incineration process into four stages.

The incineration ash is sequentially moved to the first fixed grating 222, the second fixed grating 224, the third fixed grating 226, and the fourth fixed grating 228 by driving the driving grating 230 to be described later. After that, it is finally discharged from the incinerator 200.

In more detail, when household waste (or a mixture of household waste and flame retardant waste) is introduced into the incinerator 200, the household waste is moved to one side of the inclined lower water cooling jacket 210 of the incinerator 200. .

The section extending from the upper end of the inclined lower water cooling jacket 210 to the first fixed grating 222 is a section D1 for preliminarily drying household waste by radiant heat inside the incinerator. The household waste, which is sufficiently dried while passing through the preliminary drying section D1, is accumulated in the first fixed grating 222 and moved to the next section by the driving grating 230 to be described later.

The section from the first fixed grating 222 to the second fixed grating 224 is a reconstruction and primary combustion section (D2), rebuilding the living waste that is not sufficiently dried in the preliminary drying section (D1) Of course, it is the section where primary waste is burned by using radiant heat inside the incinerator. In this reconstruction and primary combustion section (D2), the household wastes that have undergone sufficient reconstruction and combustion processes are also moved to the next section by the driving grate 230 to be described later.

The section from the second fixed grating 224 to the third fixed grating 226 is a secondary combustion section D3 in which the combustion process proceeds in earnest.

Most secondary waste is incinerated in the secondary combustion section (D3), the incinerated municipal waste is accumulated in the third fixed grate 226, the incineration ash is moved to the next section by the drive grate 230 again. .

The section from the third fixed grating 226 to the fourth fixed grating 228 is the post combustion section D4. That is, the post combustion section D4 is a section for completely burning the unburned household waste in the secondary combustion section D3, and the incineration ash completely burned through the post combustion process D4 is incinerator through the incineration outlet 200a. Is discharged from 200.

Hereinafter, the fixed grating will be described with reference to FIGS. 2 and 4.

As shown in FIG. 2 and FIG. 4, the driving grate 230 is horizontally (parallel to the fixed grating) on one side of the inclined lower water cooling jacket 210 so as to push out the waste accumulated in the fixed grate 220. It is installed to be movable.

The driving grate 230 may include the first driving grating 232, the second driving grating 234, the third driving grating 236, and the like to correspond to the above-described first, second, third, and fourth fixed gratings 222, 224, 226, and 228. Preferably, the fourth driving grate 238 is included.

That is, the first fixed grating 222, the second fixed grating 224, the third fixed grating 226 and the fourth fixed grating 228 having a stepped structure immediately above the first, 2, 3, 4 fixed The first driving grate 232, the second driving grate 234, the third driving grate 236 and the fourth driving grate 238 corresponding to the grate 222, 224, 226, 228 are installed. That is, the first driving grating 232, the first fixed grating 222, the second driving grating 234, the second fixed grating 234, the third driving grating (from the top of the inclined lower water cooling jacket 210) 236), the third fixed grate 226, the fourth driving grate 238, and the fourth fixed grate 228.

Therefore, when the pre-dried household waste is sufficiently accumulated in the first fixed grate 222 in the preliminary drying section (D1), the first driving grate 232 is moved to push the pre-dried household waste, the pre-dried household waste After rebuilding and burning while passing through the redrying and primary combustion section (D2) is accumulated in the second fixed grating 224.

In addition, when the reconstructed and primary burned household waste is sufficiently accumulated in the second fixed grate 224, the second driving grate 234 operates to push it out, and the municipal waste is fixed again after the second combustion. When the incineration ash is accumulated in the grate 226, and the incineration ash is accumulated in the fourth fixed grating 228 through the second combustion, the incineration ash may be discharged to the incineration ash outlet 200a according to the operation of the fourth driving grate 238.

The first, second, third, and fourth driving gratings 232, 234, 236, and 238 have the same configuration, and a detailed configuration thereof will be described using the first driving grating 232 as an example.

The first driving grate 232 is a cylinder 232a fixed to the outside of the incinerator 200, coupled to the cylinder 232a, a cylinder rod 232b passing through one side of the lower water cooling jacket 210, and the cylinder rod. It is coupled to the end of the (232b), and includes a push plate (232c) for pushing the incineration ash accumulated on the fixed grate 220 during the movement of the cylinder rod (232b), one side of the lower water cooling jacket 210 through the push plate Guide rails 212 may be installed to prevent the departure of 232c.

In addition, the moving distance of the first driving grating 232 is preferably the same as the distance that the first fixed grating 222 protrudes from one side of the lower water cooling jacket 210.

The fixed grate 220 is installed on the inner surface of the lower water cooling jacket 210 as a refractory, so that unburned or fine waste is not dried or combusted, thereby preventing movement to the next section. This is to minimize the amount of incineration ash discharged through the incineration ash outlet 200a in the incinerator 200, and to reduce the ignition intensity to meet the facility installation standards.

In addition, the combustion of waste proceeds not only on the fixed grate 220 but also on the cooling water supply pipe 240, and the incineration ash which is completed is vertically dropped at intervals formed between several auxiliary pipes in which a portion of the fixed grate 220 protrudes. Move to the next section.

On the other hand, as shown in Figure 2 and 3, incinerator 200 is preferably provided with a cooling water supply pipe 240. The cooling water supply pipe 240 may include a first cooling water supply pipe 242 and a second cooling water supply pipe 244 corresponding to the first fixed grating 222, the second fixed grating 224, and the third fixed grating 226. ), A recovery pipe 248 for circulating the third cooling water supply pipe 246 and the first, second and third cooling water supply pipes 242, 244 and 246 to carry out the coolant, which has been phase-changed to steam, to the outside of the incinerator (waste heat boiler, etc.) An upper cooling water supply pipe 249 that mediates the recovery pipe 248 and the first cooling water supply pipe 242.

The cooling water supply pipe 240 is manufactured by using a material having durability and heat resistance to sufficiently endure corrosion by heat and gas, and the thickness of the cooling water supply pipe 240 should be designed in consideration of corrosion by gas.

Each of the first cooling water supply pipe 242, the second cooling water supply pipe 244, and the configuration of the third cooling water supply pipe 246 are identical to each other, hereinafter, the first cooling water supply pipe 242 is an example of cooling water. The structure of the supply pipe 240 is demonstrated.

The first cooling water supply pipe 242 serves to prevent thermal corrosion of the first fixed grating 222 by cooling the first fixed grating 222 that is a refractory material. The first cooling water supply pipe 242 is installed on the first rear pipe 242a and the first fixed grating 222 to be inserted into the lower water cooling jacket 210, which is the rear surface of the first fixed grating 222. A first front pipe 242b installed in parallel with the first rear pipe 242a and a first fixed grating 222 made of refractory branched from the first front pipe 242b in the direction of the first fixed grating 222; Several first auxiliary pipes 242c are inserted.

As shown in Figure 2, the coolant is supplied from the lower afterburn section of the incinerator and circulates each section while moving upwards, thereby circulating from the highest temperature afterburn section, thereby preventing thermal deformation and thermal corrosion of the coolant pipe. This can be prevented as much as possible.

 3 and 5, the circulation path of the cooling water will be described.

The cooling water supplied from the third rear pipe 246a passes through the third front pipe 246b, and a part of the cooling water branches from the third front pipe 246b and is inserted into the third fixed grating 226. The auxiliary pipe 246c is supplied to cool the third fixed grating 226 and the post combustion section (see FIG. 2).

In addition, the cooling water cooling the third fixed grating 226 and the post-combustion section is branched from the second rear pipe 244a, the second front pipe 244b, and the second front pipe 244b, and the second fixed grating 224. Cooling the second fixed grating 224 and the secondary combustion section (see Fig. 2) while circulating in the order of the second auxiliary pipe 244c inserted into the c) in order to prevent thermal corrosion of the second fixed grating 224. do.

Subsequently, the coolant passing through the second fixed grating 224 and the secondary combustion section is branched from the first rear pipe 242a, the first front pipe 242b, and the first front pipe 242b, and then the first fixed grating ( Circulating in the order of the first auxiliary pipe 242c inserted into the 222, and passes through the first fixed grating 222 and the reconstruction and the first combustion section (see Fig. 2), the bottom water cooling jacket 210 finally After moving to the upper cooling water supply pipe 249 embedded therein and passing through the preliminary drying section (see FIG. 2), the waste heat boiler is moved through the recovery pipe 248.

On the other hand, as shown in Figure 1, the flame-retardant waste storage 300 is buried in the basement, similar to the above-described household waste storage 100 (PIT structure), it is to be buried so that the top is protruded about 30cm from the ground desirable. The flame retardant waste stored in the flame retardant waste storage 300 is transferred to the dryer 400 through several processes described below.

1 and 6, a flame retardant waste reservoir and a flame retardant waste feeder will be described.

The flame retardant waste storage 300 includes a hopper 310 with an open top. The hopper 310 includes an inclined portion 312 whose lower portion is inclined downwardly inwardly, and a vertical portion 314 vertically formed upward from an upper end of the inclined portion 312, and an upper portion thereof is opened.

Accordingly, when the flame retardant waste is introduced into the hopper 310 through the vertical portion 314, the flame retardant waste is accumulated in the center of the hopper 310 by riding the inclined portion 312.

In addition, the top of the hopper 310 is sealed with a cover 320 so that the odor generated by the flame retardant waste can not escape through the open upper portion of the hopper 310.

The flame retardant waste stored in the flame retardant waste storage 300 is transferred using the waste unmanned automatic metering feeder (10).

The waste unmanned automatic metering feeder 10 is a hollow horizontal frame casing 12 spaced a predetermined distance from the top of the hopper 310 sealed by the cover 320, the downward from one side of the horizontal frame casing 12 A bent extension is formed, the end of which is located in the center of the top of the hopper 310, the first vertical frame casing 14, the second vertically formed extending bend from the other side of the horizontal frame casing 12 in communication with the inside of the hopper 310 The flame retardant waste stored in the flame retardant waste storage 300 is removed by moving on the traveling rail 18 installed on the vertical frame casing 16 and the horizontal frame casing 12 in the horizontal direction and on the driving rail 18. It comprises a conveying means 19 for carrying out to the outside through the two vertical frame casing (16).

The conveying means 19 includes a hoist 19a movably installed on the traveling rail 18 and a grab bucket 19b movably coupled to the hoist 19a, and is close to the grab bucket 19b. By installing a sensor (not shown), the proximity sensor detects the flame retardant waste, thereby adjusting the lifting degree of the conveying means 19.

When the hoist 19a moves along the running rail 18 installed in the horizontal frame casing 12 and reaches the first vertical frame casing 14, the movement of the hoist 19a is stopped, and the grab bucket 19b is moved. Descend. The grab bucket 19b passes through the inside of the first vertical frame casing 14 and enters into the hopper 310 sealed by the cover 320. When the grab bucket 19b is lowered to reach the flame retardant waste position, the grab bucket 19b The proximity sensor mounted on the sensing unit detects this and further descending of the grab bucket 19b is stopped.

The grab bucket 19b collects the flame retardant waste in a stopped state and is lifted by the hoist 19a again. When the lifting operation is completed up to the set position, the hoist 19a travels along the running rail 18 in the horizontal direction, and when the hoist 19a is positioned on the second vertical frame casing 16, the driving operation is stopped. At the same time, the hoist 19a starts the lowering operation, descends to the inlet of the dehydrator 20, and when the hoist 19a comes in the set position, the lowering operation of the hoist 19a is stopped, and the grab bucket 19b is opened to open the flame retardant waste. Feed into the dehydrator (20).

All of these operations are continuously operated automatically by a limit switch (not shown) installed at the set position, and the above operation is repeated according to the number of inputs according to the one-time input amount of flame retardant food waste.

By such an unmanned automatic operation, the flame retardant waste can be automatically unloaded into the dehydrator 20, and the quantity can be added.

Meanwhile, the flame retardant waste generates flammable gas as it decays in the flame retardant waste storage 300. In order to further promote the generation of such flammable gas, the hopper 310 is preferably provided with a catalyst feeder 330.

The catalyst supplier 330 sprays a catalyst on the flame retardant waste accumulated in the flame retardant waste storage 300 to accelerate bacterial growth, thereby promoting the production of flammable gases such as carbon and hydrogen, which are volatile organic compounds. The combustible gas is transferred to the incinerator 200 and used as an auxiliary fuel of the incinerator 200, which will be described later.

As shown in FIG. 1, it is preferable to separate the dehydration liquid contained in the flame retardant waste using the dehydrator 20 before the flame retardant waste is transferred to the dryer 400.

In addition, if the flame retardant waste is food waste, the dehydrator 20 preferably includes a bag-packing function to tear the garbage bag containing the food waste.

The dehydrator 20 receives the flame retardant waste from the unmanned automatic metering feeder 10 to separate the dehydration liquid contained in the flame retardant waste. The dehydration liquid is sent to the dehydration liquid storage tank 900, the flame retardant waste separated from the dehydration liquid is sent to the dryer (400). Since the flame retardant waste itself has a high moisture content, it is directly transferred to the dryer 400 and the drying process not only lowers the energy efficiency, but also is subsequently transferred to the incinerator 200 and incinerated during the process of incineration. There is a problem that a large number of substances can be generated.

As such, the dehydration liquid separated from the dehydrator 20 is stored in the dehydration liquid storage tank 900, and the flame retardant waste from which the dehydration liquid is separated is transferred to the dryer 400, thereby improving energy efficiency and generating environmental pollutants. It becomes possible to suppress it.

In addition, apart from the flame retardant waste transported to the dryer 400, since the dehydration liquid stored in the dehydration liquid storage tank 900 is dumped in the soil or ocean as it is, serious environmental pollution is transferred to the incinerator 200, It is preferable to dry.

As described above, the dehydration liquid collected in the combustible gas and the dehydration liquid storage tank 900 generated in the flame retardant waste storage 300 is transferred to the incinerator 200, and the combustible gas is the auxiliary fuel when incineration dehydration in the incinerator 200 is burned. As used, the dehydration liquid is incinerated at high temperature in the incinerator 200.

With reference to FIGS. 1 and 7, a nozzle device 30 dedicated to living and flame retardant waste mixing incinerators for transporting and spraying combustible gas and dehydration liquid to an incinerator will be described.

The nozzle device 30 dedicated to living and flame retardant waste mixing incinerators is configured to inject flammable gas and dehydrate into the second combustion section of the incinerator (see FIG. 2) in consideration of the effect of incineration of dehydration liquid using combustible gas used as auxiliary fuel. It is preferable to be installed at one side of the incinerator.

The nozzle device 30 dedicated to living and flame retardant waste mixing incinerator has an inner casing 32 for supplying a dehydration liquid separated from the flame retardant waste, and the inner casing 32 is inserted between the outer circumferential surface of the inner casing 32 and its inner circumferential surface. The outer casing 34, the mixing casing 36 inwardly connected to one side of the outer casing 34, the air nozzle 36a branched from the mixing casing 36, the gas nozzle 36b, and the inner casing having a predetermined interval ( 32) and an injection nozzle 38 having one end of the outer casing 34 coupled thereto.

One end of the gas nozzle 36b is communicated with the flame retardant waste storage 300, and the combustible gas and odor generated from the flame retardant waste are transferred through the gas nozzle 36b. In order to push the combustible gas and odor in the incinerator direction, compressed air is used, and compressed air having a pressure of about 5 to 6 kg / is supplied through the air nozzle 36a. And the odor is mixed in the mixing casing 36, receives a strong driving force by the compressed air is directed toward the incinerator 200 through the outer casing 34.

In addition, the dehydration liquid separated from the flame retardant waste is transferred to the incinerator 200 through the inner casing 32 connected to the dehydration liquid storage tank 900, and, like the combustible gas and the odor, a pump (not shown) The driving force can be applied using the back.

The injection nozzle 38 is coupled to both ends of the outer casing 34 and the inner casing 32, so that the combustible gas and odor transferred and the dehydration filtrate are introduced into the incinerator 200 through the injection nozzle 38. It is injected, the combustible gas is used as a secondary fuel when incinerating the dehydration liquid in the incinerator 200, the dehydration liquid is incinerated at high temperature in the incinerator 200.

Even if the dehydration liquid is supplied into the incinerator 200, the outlet temperature of the incinerator 200 satisfies the facility installation standard and does not require a separate supporting device (not shown). The combustible gas serving as a secondary fuel is supplied to the incinerator 200 at the same time as the dehydration liquid supply, so that the high temperature incineration process serves to increase the outlet temperature of the incinerator 200. However, when the incinerator 200 outlet temperature rises abnormally, by controlling the injection amount of the dehydration liquid to protect the incinerator 200 equipment, it will be possible to suppress the air environmental pollutants (nitrogen oxide, etc.).

That is, when only the dehydration liquid is incinerated in the incinerator 200, the outlet temperature of the incinerator 200 may be lowered, but the flammable gas as the auxiliary fuel is simultaneously supplied to the incinerator 200, thereby preventing such a problem. .

The flame retardant waste from which the dehydration liquor is separated is transferred to a dryer, and the flame retardant waste is dried using a heat source of waste gas generated in an incinerator.

1 and 8, a dryer used in a living and flame retardant waste incineration system will be described.

Dryer 400 is a rotating drum 410, the inorganic ceramic coating layer 420 deposited on the inner peripheral surface of the rotating drum 410, a flame retardant waste inlet pipe 430 provided separately on one side of the rotating drum 410 and waste gas inlet pipe 440, the discharge pipe 450 provided on the other side of the rotating drum 410.

The rotating drum 410 is installed to be rotatable a pair of support rollers 460, it is rotated by the drive motor 470. At this time, the flame retardant waste and waste gas introduced into the rotary drum 410 through the flame retardant waste inlet pipe 430 and the waste gas inlet pipe 440 are mixed with each other, and the flame retardant waste is dried using the waste gas as a heat source. In this process, the inorganic ceramic coating layer 420 deposited on the inner circumferential surface of the rotating drum 410 generates radiant heat by using high-temperature waste gas, thereby drying the flame retardant waste by transmitting the radiant heat to the inside of the skin as well as the flame retardant waste. In other words, it lowers the moisture content.

Therefore, since the water content of the flame retardant waste passed through the dryer 400 is reduced to 20% or less, the flame retardant waste can be mixed with household waste and incinerated.

On the inner side of the rotating drum 400, a plurality of guide lifters 480 at regular intervals in the circumferential direction so that the drying process can proceed in a state in which the flame-retardant waste is uniformly distributed throughout the inner peripheral surface of the rotating drum 410 Is formed to protrude.

Therefore, when the rotating drum 410 is rotated, the flame retardant waste is evenly disposed between the guide lifters 480 adjacent to each other by the centrifugal force, and in this state, the high temperature flows inside the rotating drum 410. By being evenly exposed to the waste gas, the flame retardant waste can be dried uniformly.

The sufficiently dried flame retardant waste and the dry gas generated in the drying process are moved to the discharge pipe 450 provided on the other side of the rotary drum 410, and the dry gas is connected to the dry gas discharge port 452 provided on the upper portion of the discharge pipe 450. Transferred to the waste heat boiler and the like, the dried flame retardant waste is moved to the mixed compactor 500 to be described later.

On the other hand, if the high temperature waste gas and flame retardant inflow continuously in the failure state, such as malfunctioning or not rotating drum 410, there is a risk of fire, one side of the rotating drum 410 and the outlet 450 ), It is preferable to install a first water digestion nozzle 412 and a second water digestion spray nozzle 454, respectively.

In order to further lower the moisture content of the dried flame retardant waste, and to incinerate more smoothly in the incinerator 200, it is preferable to use the incinerator discharged from the incinerator 200 as a combustion accelerator of the flame retardant waste. The mixing compactor 500 makes this possible by mixing the incineration ash with the flame retardant waste.

Since the incineration ash discharged from the incinerator 200 maintains a high temperature of about 500, when the incineration ash is mixed with a flame retardant waste as it is, there is a high risk of fire. In addition, since the incineration ash is mixed with a variety of foreign matter such as iron pieces, if it is directly put into the mixing compressor 500, there is a very high risk of mixer failure.

Therefore, in order to recycle the incineration ash discharged from the incinerator 200 as the combustion accelerator of the flame retardant waste in the mixed compactor 500, before the incineration ash is supplied to the mixed compactor 500, the mixed waste compacted with the domestic waste incinerator and the flame retardant waste It is preferable to cool by using the municipal waste incinerator supply device (600).

Hereinafter, with reference to Figures 1 and 9, the municipal waste incineration ash supply device for mixing and pressing the municipal waste incineration ash and flame retardant waste of the present invention will be described.

As shown in Figure 1 and 9, the municipal waste incineration ash supply device 600 for mixing and compressing the municipal waste incineration ash and flame retardant waste of the present invention, the incineration ash inlet 610a is provided on one side, the incineration ash outlet on the other side A transfer case 610 provided with a 610b, a rotation shaft 620 rotatably installed in the transfer case 610, a transfer screw 620 and an inlet ash inlet formed by being helically coupled or integrated with the rotation shaft 620. And a cooling unit 640 cooling the incineration material and the transfer screw 630 and the transfer case 610 introduced into the 610a.

The cooling unit 640 preferably includes a cooling water spray nozzle 642, an inner water cooling chamber 644, and an outer water cooling chamber 646.

When the incineration ash discharged from the incinerator 200 flows into the incineration ash inlet 610a provided at one side of the transfer case 610, coolant is sprayed from the cooling water spray nozzle 642 to instantaneously cool the incineration ash at about 500 ° C.

At this time, it is preferable to adjust the amount of cooling water sprayed from the cooling water spray nozzle 642 to the extent that the cooling water can be vaporized by the sensible heat of the incineration ash. Problems may arise when mixing with the flame retardant waste dried at 500. That is, the flame retardant waste proceeds from the dryer 400 when the amount of cooling water is excessively discolored.

Even though the incineration at about 500 ° C. is rapidly cooled, the incineration still remains hot. Therefore, the rotary shaft 620, the transfer screw 630 and the transfer case 610 may be thermally deformed in the process of transferring the incineration ash, in order to prevent this, the inner water cooling chamber 644 inside the rotary shaft 620 ) Is mounted to cool the rotating shaft 620, as well as the transfer screw 630.

In addition, in order to recool the incineration material first cooled by the cooling water spray nozzle 642 and to cool the transfer case 610, an outer water cooling chamber 646 surrounding the outer circumferential surface of the transfer case 610 is also installed. It is desirable to cool.

As such, the hot water or steam generated in the process of cooling and transporting the incineration ash discharged from the incinerator 200 exits the transfer case 610 and is used again in the waste heat boiler 50, and the cooled incineration ash is the incineration ash outlet 610b. It is discharged from the transfer case 610 through).

On the other hand, one end of the iron piece separation duct 710 in communication with the incineration ash outlet 610b is coupled to the end of the incineration ash outlet 610b, the magnetic separator 700 is installed inside the iron piece separation duct 710. The magnetic separator 700 may be installed directly at one side of the incineration ash outlet (610b).

The other end of the iron strip separating duct 710 based on the magnetic separator 700 is divided into the iron strip moving path 712 and the incineration ash moving path 714, and the incineration ash moving path 714 is made of the incineration ash moving again. The first incinerator ash path 714a and the second incinerator ash path 714b connected to the mixing compactor 500 are passed through the first incinerator ash path 714a and the second incinerator ash path 714b. The slide gate 720 is coupled to the first and second incinerator moving paths 714a and 714b so as to control the amount of incineration ash moving.

The magnetic separator 700 installed inside the iron piece separating duct 710 includes a rotating body 760 which is connected and rotated through a rotating motor 730 and a pulley P, and an outer circumferential surface of the rotating body 760. The magnet 740 is coupled to separate the iron pieces from the incineration ash. The scraper 750 is preferably formed on the outer circumferential surface of the magnetic separator 700 to guide the separated iron piece to the iron piece moving path 712.

Through this process, the sufficiently incinerated ash is metered to achieve an optimal mixing ratio with the dried flame retardant waste supplied to the mixed compactor 500 and is supplied to the mixed compactor 500 through the second incinerator moving path 714b. do.

1, 10 to 13, the incineration and flame retardant waste mixing press dedicated to the incineration system for living and flame retardant waste mixing.

1 and 10, the incineration and flame retardant mixed compactor (hereinafter referred to as 'mixing compactor') dedicated to the living and flame retardant waste mixing incineration system, supply the domestic waste incinerator for mixing and compressing the municipal waste incinerator and the flame retardant waste Mixing case 510 in which the incineration ash input duct 500a and the flame retardant waste input duct 500b are separately provided on one side so that the incineration ash supplied from the apparatus 600 and the flame retardant waste supplied from the dryer 400 can be supplied. It is installed to be rotatably installed in the longitudinal direction in the interior of the case 510, the parallel to each other at a predetermined interval and one end of the first rotating shaft 520 and the second projecting through the mixing case 510 to the outside The first drive is coupled to one end of the rotary shaft 530, the first rotary shaft 520 and the second rotary shaft 530 protruding to the outer surface of the mixing case 510, the outer peripheral surface is engaged with each other And a power source 540 connected through the wheel 522 and the second driving wheel 532, the first driving wheel 522, and the driving pulley P1.

Looking at the power transmission process of the mixer 500, the power generated from the power source 540 is transmitted to the first drive wheel 522 through the drive pulley (P1), accordingly the second drive wheel 532 also interlocked. And the first rotary shaft 520 and the second rotary shaft 530 are also rotated in the mixing case 510.

As shown in FIG. 11, a first fixing pin 524 protrudes from an outer circumferential surface of the first rotation shaft 520, and a first pressing plate 526 is rotatably coupled to the first fixing pin 524. do. The first fixing pin 524 and the first pressing plate 526 are three pairs, it is preferable to install several pairs at regular intervals.

In addition, three pairs of the first fixing pin 524 and the first pressing plate 526 are installed at intervals such as 120 ° in the circumferential direction of the first rotating shaft 520, but not on the same outer peripheral surface to cross each other It is desirable to install.

As shown in FIGS. 12 and 13, the second fixing pin 534 protrudes from the outer circumferential surface of the second rotation shaft 530, and the second pressing plate 536 rotates on the second fixing pin 534. Whenever possible, the second fixing pin 534 and the second pressing plate 536 also have three pairs, and it is preferable to install several pairs at regular intervals.

In addition, similar to the first fixing pin 524 and the first pressing plate 526, the pair of second fixing pin 534 and the second pressing plate 536 in the circumferential direction of the second rotary shaft 530 It is installed at intervals such as 120 °, it is preferable to be installed so as to cross each other, not on the same outer peripheral surface.

 As such, when the first pressing plate 526 and the second pressing plate 536 are installed, the empty space inside the mixing case 510 can be minimized, and the incineration material and the flame retardant waste can be crushed, mixed, and pressed. Of course, the compressed mixture may be transported while the first pressing plate 526 and the second pressing plate 536 rotate about the first fixing pin 524 and the second fixing pin 534.

Here, the pressure plate is a degree of wear in the process of mixing, transporting and pressing the incineration material and the flame retardant waste, it is preferable to be made of a wear-resistant material, by improving the durability of the mixing compactor 500, incinerator 200 It can meet the conditions of complete combustion within.

Since the crushed, mixed and compressed mixture has a lower moisture content than the conventional flame retardant waste, the incineration ash serves as a combustion accelerator of the flame retardant waste to increase the combustion efficiency and to suppress the generation of dioxins due to moisture.

The mixture exits to the mixture outlet 500c (see FIG. 11) provided at the other side of the mixing case 510, and is transferred to the above-described household waste storage 100 through the mixture conveying conveyor, and is incinerated in the incinerator 200. It can be.

On the other hand, the incinerator is provided with a press-fit blower 800 to supply the combustion air required for waste combustion. In addition, if a wave is supplied to the combustion air supplied to the incinerator, and the oxygen anion of high concentration is supplied in the state in which the wave is maximized, the combustion efficiency of the incinerator 200 supplied with the combustion air may be maximized.

Hereinafter, with reference to FIG. 14 and FIG. 15, the combustion air supply system is demonstrated.

As shown in FIG. 14, the combustion air supply system includes a press-fit blower 800, a high magnetic field generator 810, and a high concentration cluster oxygen anion generator 820.

In order to maximize the supply of negative ions and combustion waves of combustion air supplied to the incinerator 200, the high magnetic field generator 810 and the high concentration cluster oxygen anion generator 820 are preferably installed closest to the incinerator side.

The high magnetic field generator 810 opposes the neodymium permanent magnet 812 surrounding the outer circumferential surface of the combustion air supply pipe, and the airtight cover 814 and the neodymium permanent magnet 812 for accommodating the neodymium permanent magnet 812. While present in the position, the electromagnet 816 to form a magnetic field depending on whether the power supply is on or off.

 When the electromagnet 816 is periodically turned on / off, the magnetic flux density is changed by the neodymium permanent magnet 812, and three mechanical changes of gravity, buoyancy, and magnetic force are accompanied, thereby maximizing combustion air waves. In other words, by periodically changing the magnetic field generation to make the air wave as irregular as possible, the wave is maximized.

In addition, as shown in FIG. 15, a plurality of guide vanes 42 are installed inside the combustion air supply pipe 40 corresponding to the mounting portion of the neodymium permanent magnet 812 so that vortices are generated in the air flow. Preferably, the structure can be installed in a structure that allows the designer to maximize the generation of vortex through the optimum design.

As shown in FIG. 14, combustion air whose wave is maximized through the high magnetic field generator 810 is supplied to the incinerator 200 by receiving the high concentration cluster oxygen anion supplied from the high concentration cluster oxygen anion generator 820. .

Such a high concentration cluster oxygen anion has a size of about 60 times as compared to the normal oxygen particles, there is an advantage that the combustion performance is improved when the high concentration cluster oxygen anion is diffused in the incinerator (200). In addition, the high concentration cluster oxygen anion has an effect of removing formaldehyde and volatile organic compounds (VOCS), which are organic substances, and has the effect of inhibiting the formation of mold spores, bacteria, bacteria, and odors charged with positive ions. It is also desirable to radiate these high concentration cluster oxygen anions around 200.

The combustion air supplied with the high concentration cluster anion from the high concentration cluster oxygen anion generator 820 is branched from the air supply pipe 40 for combustion and penetrates the side wall of the incinerator and passes through the incinerator side wall through an air supply nozzle 44 connected to the incinerator 200. Is supplied.

Hereinafter, with reference to FIG. 16 and FIG. 17, an embodiment of the method for incineration of the living and flame retardant waste will be described.

In addition, the description of the overlapping parts described in the above-described living and flame retardant waste incineration system is replaced with the above description.

As shown in FIG. 16, the method for incineration of mixed living and flame retardant wastes includes a domestic waste storage process (S100), an incineration process (S200), a flame retardant waste storage process (S10), and a drying process (S20).

The household waste storage process (S100) is a process of receiving and storing household waste from a domestic waste import vehicle. The stored household waste is transferred to the incinerator through the household waste transfer process (S150) by various means.

In addition, the flame retardant waste storage process (S10) is a process of receiving and storing flame retardant waste from a flame retardant waste carrying vehicle, such a process is performed separately from the household waste storage process (S100). This process may be performed sequentially or simultaneously with the household waste storage process (S100).

In the incinerator, the incineration process (S200) in which the transported household waste is incinerated is performed. At this time, since the flame retardant waste has a high water content, when incinerated directly in the incinerator, it lowers the combustion efficiency of the incinerator and generates environmental pollutants such as dioxins. Should be lowered.

Drying process (S20) is a process of collecting the waste heat of the flue-gas generated during incineration of domestic waste in the incinerator, by using this to reduce the water content of the flame retardant waste.

Although dry flame retardant waste can be directly added to incinerators for incineration, the use of municipal waste incinerators from incinerators as combustion promoters for dry flame retardant wastes can increase combustion efficiency in incinerators. This process is a mixed compression process (S500), the life and flame retardant waste incineration method preferably comprises a mixed compression process (S500).

The mixed compression process (S500) is a process of mixing and compressing a certain amount of incineration ash incinerated in the incinerator and the flame retardant waste dried in the drying process (S20). In this process, the incineration ash and the flame retardant waste are mixed and compressed, and the incineration ash is carried out. Due to the low heat, the moisture content of the flame retardant waste is lowered, and the unburned components in the incineration ash discharged below the ignition loss are mixed and compressed with the flame retardant waste, thereby promoting combustion in the incinerator.

On the other hand, since incinerator ash taken out from the incinerator is about 500 or more high temperature state, when it is put into the mixed compression process (S500) as it is, it reacts abruptly with the flame retardant waste to increase the amount of dioxin, and the risk of fire is very high. There is a problem. Therefore, after cooling the incineration material carried out from the incinerator to a predetermined temperature or less, it is preferable to add the mixed compacting process (S500).

As such, the process of lowering the incineration material discharged from the incinerator below a predetermined temperature is a cooling process (S300). The cooling process (S300) is a process of lowering the temperature of the incinerator by injecting a predetermined amount of coolant after transferring the incinerator ash discharged from the incinerator using various transfer means such as a conveying conveyor. The amount of cooling water should be controlled to reduce the temperature of the incineration ash, and if more than that is injected, since the water content of the incineration ash is increased, the combustion promoter function may be degraded when mixing with the flame retardant waste in the mixing process (S500). have.

After the cooling process (S300) is carried out, the mixed compression process (S500) should be carried out, but before proceeding with the mixed compression process (S500), the iron strip removal process (S400) for separating the iron pieces, etc. mixed in the cooled incineration ash is preceded. It is preferable. When the incineration material containing mixed iron pieces is supplied to the mixed compression process (S500), not only may the mechanical failure of the mixer in which the mixed compression process (S500) proceeds, but even if the mechanical failure does not occur, the iron pieces are incombustible materials. There is a problem that does not burn.

Therefore, it is preferable to separate and remove nonflammable materials such as iron pieces through the iron piece removing process (S400). After that, a separation process (S450) of separating the incineration ash from which the iron pieces are removed is performed.

Separation process (S450) is a process of measuring and separating the amount of incineration material and incineration material to be disposed in the mixed compression process (S500). This is to obtain the optimum combustion efficiency in the incinerator finally by inputting a predetermined amount of pure incineration ash into the mixed compression process (S500) in consideration of the amount of dried flame retardant waste.

Meanwhile, the incineration method of living and flame retardant waste mixture further includes a dehydration solution storage process (S30) and a catalyst supply process (S12), and a dehydration liquid and catalyst supply process of the flame retardant waste separated in the dehydration solution storage process (S30) (S12). The increased flammable gas is preferably transferred to the incinerator and used in the incineration process (S200).

As described above, when the flame retardant waste is incinerated as it is, environmental pollutants such as dioxins are generated, and it is necessary to separate and store the dehydrated filtrate from the flame retardant waste, and this process is a dehydrated liquor storage process (S10).

If the dehydrated waste dewatered separated and stored through the dehydration storage process (S10) is dumped improperly, which may contaminate the soil as well as the water, and this can be solved by transferring the dehydrated liquid to an incinerator for high temperature. .

In addition, the gas generated when the flame retardant waste is a combustible gas, it is preferable to increase the amount of generation of such flammable gas through the catalyst supply process (S12). The combustible gas generated through this process is transferred to an incinerator and used as an incinerator auxiliary fuel, thereby improving combustion efficiency.

It is preferable that the incineration method of living and flame retardant waste mixture further includes a combustion air supply process.

16 and 17, the combustion air supply process (S600) is a process of supplying combustion air into the incinerator, in order to maximize the incineration efficiency of the incinerator, such a combustion air supply process (S600) ) Is subdivided into a blowing process (S610), an air pulsating process (S620), and an anion supplying process (S630), more preferably when considering the combustion efficiency of the incinerator.

Combustion air supplied through the blowing process (S610) has a certain wave, through the air wave generation process (S620), by giving a wave to the combustion air can improve the combustion efficiency in the incinerator. As a method of imparting waves to combustion air, a magnetic field may be used. In particular, by irregularly deforming the magnetic field, it is possible to maximize such waves. As described above, an electromagnet may be used in this manner.

By mixing the anion oxygen cluster through the anion supply process (S630) to the combustion air maximized wave through the air wave generation process (S620), and supplying it to the incinerator, the combustion efficiency of the incinerator can be further improved.

1 and 16, an embodiment of a system for recycling waste heat recovered from a dryer will be described.

The waste gas waste heat discharged from the incinerator 200 is supplied to the dryer 400 to be partially used to dry the flame retardant waste, and the waste gas waste heat in a steam or hot water state is used to operate the waste heat boiler 50. Waste heat boiler 50 is provided with a separate water supply facility 70, the water supplied to such a water supply facility 70 is steam or hot water recovered from the dryer 400, and incinerator ( 200) The water cooling jacket and the municipal waste incineration ash is filled with high temperature cooling water discharged from the municipal waste incineration ash supply device 600 for mixing and compressing the flame retardant waste. That is, as much as the amount of evaporated and evaporated from the waste heat boiler 50, the city water is partially replenished with steam or hot water recovered from the dryer, and the rest is incinerator 200 with the lower water cooling jacket 210 and the municipal waste incinerator. It is supplemented by receiving the high-temperature cooling water discharged from the municipal waste incinerator supply device 600 for mixing and compressing the flame retardant waste.

Therefore, it is possible to further maximize the energy recovery efficiency using the waste heat boiler (50).

The exhaust gas discharged from the incinerator or the waste heat boiler contains an acid gas component such as hydrogen chloride, and is removed to the semi-dry reaction column 60 to remove such gas.

In the semi-dry reaction tower 60, the liquid slaked lime slurry is injected to neutralize the acidic gas. The semi-dry reaction tower 60 includes a liquid slaked lime slurry supplying device 62 for supplying the liquid slaked lime slurry. The neutralized flue gas is removed through the filter dust collector 80, and then discharged from the chimney 99 to the atmosphere by the manned blower (90).

In addition, the gas is cooled in the process of dilution with the cold air of the atmosphere by heated wet air, so that white smoke occurs, and this phenomenon can be prevented by passing the smoke smoke prevention facility 95 before discharging the gas into the chimney.

Referring to FIG. 18, the semi-dry reaction tower, which is a part of the living and flame retardant waste incineration system to which the present invention is applied, will be described in more detail.

The semi-dry reaction tower 60 used in the present system is formed so that the exhaust gas can react with the liquid slaked lime slurry in multiple stages.

The semi-dry reaction tower includes a first chamber 62, a second chamber 64, and a third chamber 66.

The first chamber 62 is adjacent to each other with the second chamber 64, and the second chamber 64 is adjacent to each other with the third chamber 66. An exhaust gas inlet 62a is formed at an upper end of the first chamber 62 to allow the exhaust gas to flow therein, and a first liquid slaked lime slurry injection nozzle 62N is installed at one side of the exhaust gas inlet 62a.

In addition, a second liquid slaked lime slurry spray nozzle 64N and a third liquid slurry spray nozzle 66N are respectively provided on the upper ends of the second chamber 64 and the third chamber 66.

First, second, and third reactant outlets 62b, 64b, and 66b are formed at the lower ends of the first, second, and third chambers 62, 64, and 66, respectively.

The first chamber 62 and the second chamber 64 neighboring each other are partitioned by a first separation wall 63, and the second chamber 64 and the third chamber 66 are second separation walls 65. The first exhaust gas outlet 63a is formed at the lower portion of the first separation wall 63 so that the first chamber 62 and the second chamber 64 can pass through each other, and the second separation wall 65 is formed. The second exhaust gas outlet (65a) is formed in the upper portion of the () so that the second chamber 64 and the third chamber 66 can pass through. In addition, a third exhaust gas outlet 66a through which exhaust gas is finally discharged is formed at one side of the third chamber 66.

The process of the flue-gas reaction by this semi-dry reaction tower will be briefly described.

The liquid slaked lime slurry stored in the liquid slaked lime storage tank L is supplied to the first, second and third liquid slaked lime slurry spray nozzles 62N, 64N and 66N by a pump P.

At the same time as the flue gas is introduced through the flue gas inlet 62a, the liquid slaked lime slurry is injected from the first liquid slaked lime slurry injection nozzle 62N to firstly neutralize the acid flue gas containing SO _X and HCl. The solids are discharged to the first reactant outlet 62b, and the first neutralized exhaust gas moves to the second chamber 64 through the first exhaust gas outlet 63a formed in the first separation wall 63.

The primary neutralized flue gas moves to the second chamber 64 and is secondaryly neutralized while reacting with the liquid slaked lime slurry supplied from the second liquid slaked lime slurry injection nozzle 64N.

At this time, the generated reactant is discharged to the second reactant outlet 64b as a solid, and the secondary neutralized exhaust gas is transferred to the third chamber 66 through the second exhaust gas outlet 65a formed in the second separation wall 65. Move.

The secondary neutralized flue gas is moved to the third chamber 66 again and is neutralized tertiarily by reacting with the liquid slaked lime slurry supplied from the third liquid slaked lime slurry injection nozzle 66N. The reactant outlet 66b is discharged, and the third neutralized exhaust gas is discharged to the outside through the third exhaust gas outlet 66a and is supplied to the filter dust collector 80.

In this way, by passing the exhaust gas through the first, second, and third chambers 62, 64, 66, the time for the exhaust gas to stay in the semi-dry reaction tower 60 becomes long, and of course, vortex is generated in this process. The contact area with the liquid calcined lime slurry can be widened to improve the collection efficiency. In addition, since the flow of the exhaust gas is changed downward, upward again downward, the contact with the liquid slaked lime slurry, the reaction time is extended, the collection efficiency is further improved.

In a typical semi-dry reactor, the amount of harmful gas is collected about 60 to 70%, and 30 to 40% is discharged to the atmosphere, but the multi-stage reaction can be used to improve the exhaust gas collection efficiency to 90% or more.

As such, as the collection efficiency is increased, not only the liquid slaked lime slurry loss is reduced, but also the load of the filter dust collector 80 installed at the rear end is reduced to improve the efficiency, and the fly ash emission is reduced, so that the management and maintenance are simple. There is an advantage.

While the invention has been shown and described with respect to particular embodiments, it will be appreciated that various changes and modifications can be made in the art without departing from the spirit of the invention provided by the following claims. It will be self-evident for those of ordinary knowledge.

10: unmanned automatic waste feeder 20: dehydrator
30: nozzle device for incinerator for living and flame retardant waste
40: combustion air supply pipe 50: waste heat boiler
60: semi-dry reaction column 70: water supply equipment
80: filter dust collector 90: manned blower
100: household waste storage 200: incinerator
210: lower water cooling jacket 220: fixed grating
230: drive grating 240: cooling water supply pipe
300: flame retardant waste storage 310: hopper
320: cover 330: catalyst feeder
400: dryer 410: rotating drum
420: inorganic ceramic coating layer 430: flame retardant waste inlet pipe
440: waste gas inlet pipe 450: discharge pipe
460: support roller 470: drive motor
480: guide lifter 500: mixing press
510: mixing case 520: first rotating shaft
530: second axis of rotation 540: power source
600: Household waste incinerator feed device for mixing and compressing household waste incinerator and flame retardant waste
610: transfer case 620: rotation axis
630: moving screw 640: cooling unit
700: magnetic separator 710: separation iron duct
720: slide gate 730: rotating motor
740: magnet 750: scraper
760: rotating body
800: press-fit blower 810: magnetic field generator
820: negative ion generator 900: dehydration liquid storage tank

Claims (9)

An incineration ash inlet 610a on one side and an incinerator ash outlet 610b on the other side to allow the incinerator ash to be transported to the municipal waste incinerator 200; A rotating shaft 620 rotatably mounted inside the transfer case 610; A transfer screw 630 formed on the outer circumferential surface of the rotating shaft to allow the incineration material introduced into the incineration ash inlet 610a to be transferred in the incineration ash outlet 610b; And a cooling unit 640 cooling the incineration ash, the transfer screw 630 and the transfer case 610 introduced into the incineration ash inlet 610a.
The iron piece separating duct 710 is connected to the incineration ash outlet 610b, and a magnetic separator 700 is mounted at one side of the iron piece separating duct 710,
The magnetic separator 700 is connected to the rotating motor 730 and the pulley (P) by a rotating body 760, the magnet 740 mounted on the outer peripheral surface of the rotating body 760 and the And a scraper (750) for guiding the iron pieces separated by a magnet in one direction. The method according to claim 1,
The cooling unit 640 includes a cooling water spray nozzle 642 mounted at one side of the incineration ash inlet 610a and an inner water cooling chamber 644 penetrating the inside of the rotating shaft 620. Waste incinerator feeder for mixing and compression of municipal waste incinerators and flame retardant wastes. The method according to claim 1,
The cooling unit 640, characterized in that it comprises an outer water cooling chamber 646 surrounding the outer circumferential surface of the transfer case 610, municipal waste incineration material and apparatus for supplying the mixed incineration waste and flame retardant waste. The method according to claim 2 or 3,
Cooling water of the cooling unit 640 endotherm from the domestic waste incineration ash is hot water or steam is supplied to the waste heat boiler 50, characterized in that the municipal waste incinerator and incineration ash supply apparatus for mixing and compressing the waste combustible waste. delete delete The method according to claim 1,
At the end of the iron piece separation duct 710 is a steel piece moving path 712 and incineration ash moving path 714, the scraper 750 is characterized in that installed on the iron moving path 712, household waste Domestic waste incineration feeder for mixing and pressing incineration and flame retardant waste. The method according to claim 7,
The incineration ash movement path 714 is divided into a first incineration ash movement path 714a and a second incineration ash movement path 714b, and the first and second incineration ash movement paths 714a and 714b are slide gates 720. Life-opening incineration material supply apparatus for mixing and crimping the municipal waste incineration ash and the flame retardant waste, characterized in that the opening and closing degree is controlled by. The method according to claim 8,
The slide gate 720 controls the opening degree of the second incineration ash moving path 714b according to the amount of the flame retardant waste mixed with the municipal waste incineration ashes, and mixed crimping the municipal waste incineration ashes and the flame retardant wastes. Waste incinerator feeder.

Images