JP2003343819A - Spatially fluidized mirror combustion type combustion furnace - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To combust all combustible industrial wastes and general combustible wastes to harmlessness. <P>SOLUTION: A method of simple combustion basically combusts combustibles in two vertical grates 3, one of which sprays combustion gas to the other, and leads the combustibles down continuously with simple combustion. The combustibles are fed into the grates 3 along with crushed ore for ensuring ventilation, and are thus prevented from overlapping, so that an overall movement is easy as a ventilation passage is ensured. The two grates are assigned a characteristic of combustion treatment, and in view of a strength problem and optimal combustion environment securement, a grate is set in a vertical flow through different divided zones including a carbonization treatment zone, an oxidation treatment zone and an extinguishment/cooling zone, to form a zone of combustion only of discharged and recovered gas. A casing in the vaporized gas combustion zone is a cylinder, which combusts vaporized gas intensively at the center. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

The idea of the present invention is to burn all combustible industrial waste and general combustible waste by detoxifying combustion. When combustible materials are analyzed, they are classified into solid, liquid and granular powders as dissolved combustible materials (flame retardant materials) represented by rubbers. Liquid combustibles are different from each other in their combustion characteristics and can be easily separated and separated, but the other three are burned in the same combustion environment, and numerous combustion failures and after-effects are caused by pollution problems, economic problems, and waste materials. Revolutionary combustion system that induces environmental pollution and social problems on a regional scale in the final treatment and solves all the fatal problems concerned is considered science, chemical logic and physical combustion environment,
It is a comprehensively realized combustion furnace.

The differences and characteristics that are greatly different from the conventional ones deny the history since the history of what is called a raw combustion system, in which all conventional combustion furnaces complete the combustion of coal on a grate,
Combustible materials in an environment with a three-dimensionally breathable environment are smoked and charcoal is vaporized, and vaporized gas combustion is separated and burned independently. The carbon component and other solid waste are continuously treated until they are detoxified and discharged in an area dedicated to solid matter. Detoxification of solid emissions such as carbides and incineration ash is done by extracting gas bodies from solid combustibles in the smoldering area and then discharging residual gas components due to slight secondary combustion of carbon components, and then removing the metal content. While detoxifying the oxidation, complete the continuous classification process until cooling and discharging.

The above-mentioned basic idea is to put combustible substances into two vertical grate 1 and 2 spaces 4 shown in FIG.
High temperature gas is ventilated from one side between the grate, combustible gas components are recovered from the other grate, and carbides and other solids are discharged downward. In reality, a planar grate is rounded as shown in the figure, and the outer cylindrical grate 1 and the inner cylindrical grate 2 are rounded to have different diameters, and they are concentrically piled upright to form a cylindrical upright grate 3 . Heat-resistant ore and combustibles are put into the donut columnar space 4 created by the cylindrical grate 3 of 1 and 2 to obtain an environment in which the ore keeps air permeability, and a high temperature gas body is supplied from the periphery of the cylindrical grate 1 with an arrow 5 As described above, it is pumped from the outside, passed through the inside of the cylindrical grate 2, and the smoldering coal combustion gas is recovered from the combustible substances in the cylindrical space 4 into the cylindrical grate 2 and is discharged from the tip of the cylindrical grate 2. Arrow 6
The basic combustion method is that the unburned gas is discharged in the direction and the unburned gas body is specially burned in the circular combustion housing 15 region of the present invention.

Based on the above basic form, as shown in FIG. 2, a cylindrical upright grate 3 is extended vertically, a mixed combustion material charging area 7 is provided on the upper side, and an oxidation aging area 8 and a cooling area 9 are provided on the lower side. The whole is referred to as a vaporized smoldering charcoal burning compact zone 10 . The mixed combustion material charging area 7 has no air permeability in both the inner and outer cylinders, and the cylinder 2 adds the residual heat of the injected combustible material.

Directly above the cylinder 2 in the residual heat area 7 is a gas burner area 11, which is a mixing grate 12 having numerous holes for atmospheric mixing. A cylindrical combustion guide cylinder 13 surrounds the outer periphery thereof, and the burner combustion atmosphere and the mixing atmosphere are supplied from a donut columnar space 14 obtained between the mixing grate 12 and the combustion guide cylinder 13 to generate from the burner combustion region 11. The burning flame that is generated completes combustion at the center of the combustion housing 15 .

The combustion housing 15 has a plan view shown in FIG. 3, for example, four arc panels 16 form a cylindrical shape, and joints 17 overlap in the same direction to maintain a narrow gap 18. The outer overlap side plate end portion has a shape of a lip plate 19 protruding outward to assist in guiding a ventilation direction.

Combustion housing composed of four arc panels 16
From the narrow gap 18 of 15, blown directly a high pressure atmosphere inside tangentially, to high-speed rotation of the entire gas in the housing. Centrifugal force of high-speed rotation causes light gas to rotate in the center and heavy gas to rotate and convect to the inner wall of the combustion housing to prevent convective heat conduction. The first important heat insulation function is the exclusion factor of the heat insulation structure band. Let's do it.

The first important heat insulation function promotes optimum combustion convection between the unburned gas and the supply atmosphere, which is important in the flame burning column described later.

The inner surface of the cylindrical panel 16 constituting the housing 15 is a mirror surface, and the total focal point P of the mirror surface is the vertical line in the middle of the housing cylinder. The mirror surface is the second important patent requirement that totally reflects all the light waves including the thermal infrared rays emitted from the burning flame to the radiation source and protects the radiant heat conduction path and does not require the heat insulating structure.

The fact that the specular focal point P is at the center along the vertical line of the flame burning column is a high-density region of energy of thermal infrared rays including visible light, and gas molecules in the same region are excited by heat and light. As a result, the binding molecules are ionized into a plasma state, move to the outside of the flame burning column due to convection, and when they come into contact with oxygen, they rapidly bond with oxygen.As a result, the benzene ring in the harmful binding molecules such as chlorine is easy. While chlorine is released by combining with oxygen, nitrogen in the atmosphere is less likely to form nitrogen oxides without forming plasma, which is a revolutionary combustion that completes pollution-free combustion.

The above two radiant heat conduction and convection heat conduction prevention satisfy the important requirement for excluding the heat insulating structure which was indispensable for the combustion housing, and the effect thereof is great and has many advantages in various fields. And is built as a revolutionary combustion system.

The beginning of rotary spread begins from the burner area 11. As shown in the plan view of the atmosphere mixing grate 12 in FIG. 4, the cross section of the ventilation groove 20 of the mixing grate has a wedge shape, and its blowing direction is the inner tangential direction, and as a result of venting in the direction of rotating the unburned gas surface, While the surface of the unburned gas in the mixed grate mainly burns, the expansion direction becomes explosive combustion in a direction that further accelerates the rotation, and rotationally ejects to the combustion casing 15 .

Donut cylindrical space 14 in the burner area 11
Atmosphere supplied from. The atmosphere has a twist blade fin 21 on the inner wall of the guide tube 13 of the ventilation path, and this blade fin 21 serves as an appropriate ventilation resistance to generate pressure, and a part of the atmosphere promotes ventilation to the atmosphere mixing grate 12 and burns. Housing 15
Is discharged to the space of the housing 15 while rotating around the outer circumference of the combustion column.

Since the inside of the combustion housing 15 is already rotated by the atmosphere blown from the housing joint portion 17 at a high speed, the atmosphere from the combustion column and the burner, which is light and high in heat, is diffused due to the centrifugal force balance with the heavy and cold rotation. Without going up, it rises without changing the radius of gyration together with the flame burning column.

The manner in which the gas rises in the combustion furnace casing will be described with reference to FIG. In the figure, reference numeral 22 indicates a flame-fired column that rotates counterclockwise, rotation dashed line 23 indicates a cold supply atmosphere that rotates counterclockwise around the outer periphery of the flame-fired column, and spiral broken line 24 indicates the atmosphere taken into the flame-fired column. The lower two donut disk diagrams and one elliptical diagram represent the temperature distribution zone of the flame burning column, and the reaction zone 25 that burns violently with the atmosphere outside reaches 1500 to 2000 degrees. The middle combustion zone 26 is 1000
˜1500 degrees, the central zone 27 is a 700 to 1000 degrees zone. The rising speed is different due to the difference in temperature of each band, and the rising speed is shown by a vector arrow group 28 . As a result, the rising vector of each zone 25, 26, 27 is represented by the stirring arrow 29 for each temperature zone and the relative convection stirring arrow 30.

From the above correlation, the flame-fired column is the same as the tornado-shaped combustion column. The meaning of burning like a tornado is violent stirring combustion. Moreover, the main flame means that the shape of the main flame is maintained and the heat during combustion is not diffused, so that the high temperature environment is maintained.

It is the inner mirror surface of the combustion casing 15 that has a further effect of increasing the temperature for maintaining the self-high temperature of the flame-fired column. With the optical reflection indicated by the solid broken line arrow 31 in FIG. 3, all rays including thermal infrared rays are rebound to the flame burning column which is the light emitting source, and the fact that the housing is circular has its focus on the center line of the flame burning column. .
Theoretically, in the linear region that is the focal point, the focal point is over 2000 degrees, and the high density energy region results in a plasma state including unburned gas and combustion completed gas that pass through the same region by stirring action, and is representative of dioxin. The harmful synthetic substances are ionized and easily oxygen-bonded to the outer wall of the flame burning column 22.

Turning to the functional description of the combustible material processing area below the smoldering coal vaporization area (grate 3 ). The ventilation outside area of the cylindrical grate 3 area is covered with a single closed area cover 32, the high-temperature waste heat is forcibly ventilated by a suction blower fan 33, and the charcoal-based charcoal after burning the combustibles in the donut columnar space 4 is below. Move to the standby oxidation aging area 8.

The carbide transferred to the oxidative aging region 8 is supplied with a small amount of oxygen by the blower fan 34 to carry out self-combustion overheating of the residual carbide for a short time, and exhaust gas is discharged to the inner cylindrical body 2,
Aging naturally with the residual heat while gently radiating natural heat in the outer non-ventilated area 35. The aging is mainly performed by releasing the residual gas in the incinerated ash and promoting the oxidation of the contained metal.

The metal oxide is the most stable compound and does not spring into an acid or alkaline solution and never causes a metal reaction. It has no conducting function and shows no tendency to ionize, and is powdered. Therefore, the incinerated ash discharged from the lowermost fire suppression cooling area 9 and separated and divided can be consumed as a safe cement material or oxidized soil modifier.

As the gas to be supplied to the quenching / cooling region 9, the lean oxygen gas of the combustion exhaust gas is blown by the suction blower fan 37 through the cooler 36, and water is supplied from the spray nozzle 38 to accelerate the quenching to quench the fire. Ensure cooling. (Vaporized water vapor is recovered and burned in the grate 2)

Regarding the means for securing the combustion environment, it has been described that in this means, a combustible material is put into the combustion treatment area 4 together with a heat-resistant mineral mass. Combustible materials similar to waste are solid combustible materials typified by wood, flame-retardant materials that melt when plastics and rubbers melt, and organic materials called kitchen garbage generated in the kitchen.
It is mixed in various ways. If they are placed on a horizontal grate, they will pile up and the ventilation for combustion cannot be secured sufficiently. One of the means for ensuring air permeability is fluidity, and various means and devices have been devised as a flow furnace.

A large number of lumps of heat-resistant mineral lumps in a standard 39
Resin washbasin, cup and cup 40, prismatic wooden piece 41,
Wooden boards 42, plastic films 43, and raw garbage 44 and the like are scattered in the innumerable mineral mass 38 . In Fig. B, only incineration waste is overlaid on the grate. When comparing the two AB diagrams, in the A diagram of the present application, the mineral agglomerates 38 form a myriad of gaps, and as a result, it is possible to easily escape from the left to the right as shown by the ventilation arrow 45. If combustibles are placed directly on top of each other, they will be laminated and air permeability cannot be secured sufficiently. In addition, the soluble plastic melts and falls as shown in the box 46, burning in the hearth, while small objects such as garbage cannot be fixed alone on the grate. In the present case, it melts down and adheres to the innumerable mineral lumps 39 , and can be stored between the mineral lumps 39 , whether it is powder or liquid, and has a characteristic that a sufficient vaporization time can be maintained and a sufficient heating vaporization action can be promoted.

The result of the combustion means described in detail above is that since carbon components are taken out as carbides with respect to solid combustible substances and flame-retardant substances that melt, the presence of a small amount of carbon components in the combustion gas suppresses the formation of organic compounds and, at the same time, the atmosphere. It becomes a global-scale environmentally friendly combustion furnace that reduces carbon dioxide emissions
It is a combustion furnace of revolutionary combustion means that did not exist in combustion furnaces all over the world.

[Industrial applications]

Combustion furnace for municipal waste.

Combustion furnaces for power generation and heat recovery applications.

Fields of complementary utilization of melting furnaces.

Combustion furnace requiring carbon dioxide suppression

Liquefaction furnace for solid combustible materials such as coal

[Prior art]

Since there are various kinds of combustion furnaces, and the combustion furnace of the present invention belongs to the fluidized furnace according to classification, only the fluidized furnace will be described.

In the first place, the fluidized furnace means to burn combustible materials while continuously moving them. The ideal combustion environment begins with providing sufficient oxygen supply to the solid combustible material. The only means is to float and burn solid combustibles in the atmosphere. As a means to prevent falling and overlapping due to gravity, at a steelworks, a blast furnace, that is, a means for dropping combustible materials from a high position to obtain a falling time and obtaining a simple combustion time.
The disadvantage is that it is very expensive and continues to burn continuously throughout the year.

There is a technique in which a combustible material of waste is blown up into the atmosphere by air pressure and burned. That is, it is a means for hoisting in the furnace by wind pressure and staying in the furnace, and is blown into the furnace together with heated sand in order to secure a high temperature atmosphere and wind pressure mass under combustion conditions. As a result, combustibles and sand turbulently interact with the supply atmosphere and burn well in the furnace. The weak point is that the running cost is high and expensive sand repeatedly collides with each other and becomes powder, so the requirements for sand are not satisfied, and a large amount of sand powder is mixed during the separation of sand dust and incineration ash, and expensive sand becomes Consumables will increase running costs, but will also increase the amount of incineration ash for final disposal. On the other hand, damage to the heat insulator and the structure due to the sand's disturbance due to abrasion.

As an evolved flow path, there is a trader name, a zither furnace. A turret furnace is a means of burning crushed stones with crushed stones spread over an inclined grate to cause the crushed stones to flow, and to ensure that the surface of the grate has good air permeability. Since the crushed stone layer is fluidized as a pseudo grate, a new grate can always be secured, and combustion can be achieved reliably, but the conditions for burning combustible materials on the fluidized pseudo grate indiscriminately are the same as those of the conventional combustion method. Does not change. To consider the crushed stones 1200
The result of the melting of the ore, which bears more than a certain degree, supports the fact that the molten plastics melt into the crushed stone and the flame-retardant material melts and burns in the laminated crushed stone. On the other hand, compared to other conventional plants, even if it achieves remarkable combustion efficiency and high temperature maintenance, a heat insulator is required, fire ash will disturb the inside of the furnace and melt adhesion will occur on the heat insulating wall, and the heat insulating structure is lightweight It is a special foam, and adhesion of molten ash is one of the causes of damage to the heat insulator.
The other is that the vibration of explosive combustion of high-speed combustion causes deterioration of the soft insulating structure.

There is a rotary kiln system as a classic flow furnace. In this method, a pipe that is tilted up and down is rotated and there is no grate. Combustibles and a combustion heat source are sent into the pipe, combustion is completed during rotary stirring, and the top is discharged as an outlet. The weak point is that the flame-retardant substances such as rubber plastics are melted and adhere to the inner wall of the heat insulation to form nodules, and the incinerated ash is mixed into them to become huge, which requires regular short-term maintenance. Since it is difficult to form a flame, it is difficult to continue self-combustion. A gap is easily created in the heat insulator due to rotational vibration. It is the cause of peeling.
The advantage is that it dries well.

Regarding the heat insulating structure, there is no combustion furnace without a heat insulating wall in all the combustion furnaces.

Regarding the material of the high temperature heat insulating structure, the material which is classically used is refractory brick. Asbestos is used for other than bricks, but it is apt to be used only for electric furnaces because it is severely damaged by flame contact. In addition, although the material cannot be known due to trade secrets, there is a lightweight heat insulator made of an independent foam that can withstand high temperatures, and is used exclusively for the tweeter furnace described in the previous section.

The need for a heat insulator on the inner wall of the combustion furnace is
The construction cost rises, and the foundation and the skeleton that support the weight of the heat insulating structure are all strongly designed, which causes rise in the construction cost. By the way, the stalker furnace construction budget for the main combustion furnaces of all the local governments with different combustion methods is about 30 billion yen with a burning capacity of 150 tons for 24 hours.

In a combustion furnace requiring a heat insulator, it is naturally indispensable to maintain the heat insulator. Whatever the means of insulation, it is common. Maintenance-required requirements mean that the combustion furnace is regularly shut down, leading to a drop in the operating rate.

The operation program of the waste combustion furnace does not continue to operate 24 hours a day, and as a result of repeated combustion and stoppage, gaps are generated in the brick laminated surface due to a drastic temperature difference, especially in refractory bricks, causing peeling and peeling gaps. Due to the invasion of acid gas generated during extinguishing, the oxidative damage to the inner wall of the combustion furnace body is promoted, which affects the service life.

In the incineration system, since environmental pollutants containing heavy metals cannot be completely eliminated in the incineration ash, waste detoxification treatment costs and a final disposal site for the waste will be required forever.

There is a melting furnace as a means for treating wastes to be harmless. The melting furnace requires a new heat source and its running cost is high, and it is rejected. By the way, Tokyo 23
There are 22 incineration facilities in the ward, and only one melting channel is installed for detoxifying ash.

[Problems to be Solved by the Invention]

A ventilation method for maintaining a three-dimensional environment and ensuring air permeability, which is a basic principle of an optimal combustion environment that has never been considered or questioned in the past.

Combustibles are called hydrocarbons regardless of gas solids, and molecules with a small carbon content are transferred to gas and then to liquid solids. As a matter of course, a combustible substance contains a carbon component, and a single carbon molecule gas does not exist at room temperature or in a high temperature environment. Except for hydrogen bonding, it is carbon monoxide gas or carbon dioxide gas. As a result, the combustion method is different, and it is not ideal to burn in the same environment as the vaporized material, and the conceptual design of a combustion furnace with that ideal environment.

The production of harmful substances has become an important issue in combustion these days, not only in exhaust gas but also in incineration ash. If there is a means to make both of them harmless, incineration ash that requires a managed final disposal site will be used as a resource for consumption and the disposal site problem will be solved.

Insulation requirements for combustion furnaces are common sense. Insulation-free combustion furnace that overturns common sense.

Ensuring a pollution-free combustion environment is how to secure and maintain a high temperature environment. Conventionally, the high temperature environment means the ambient temperature in the furnace. The high temperature securing means means that the heat absorber on the inner wall surface of the furnace is overheated so that it does not become a heat load without repairing. When analyzing this phenomenon, the inside of the furnace is filled with thermal infrared rays emitted from the wall surface. Exclusion of such means or rational system means.

Means to be Solved by the Invention

Regardless of solids, flame retardants, powders, and liquid combustibles to be burnt, direct combustion of raw fire is not performed, all combustibles are vaporized at a high temperature, and only vaporized gas is burned off in an optimal environment. The residue is taken out as charcoal.

In order to ensure the air permeability of the superheated air supplied to the combustibles to be burnt, the heat-resistant minerals (crushed stones) crushed into irregular shapes are mixed with the combustibles, and the mixed combustibles illustrated in FIG. 7 are shown. It is thrown into the grate shown in FIG. 1, and the superheated air is vaporized and collected between the front and rear grate in the same figure, and the mixed combustibles are continuously discharged from the top to the bottom.

As a means for detoxifying solid residue, the two grate 1 and 2 in the above combustion means are lengthened, and an important detoxifying aging zone and cooling zone are provided in the lower part of the grate in the vaporized smoldering area. In both areas, the extracted gas is also rendered harmless with the vaporized gas at high temperature. As a result of physical property conversion of solid emission in a continuous series of flow, utilized charcoal and detoxified incineration ash, and metals to completely oxidized metal, carbide is fuel source and environmental modifier year, incineration ash is soil modifier. Combustion system with zero waste by using cement and cement raw materials.

As a means for completely detoxifying the combustion of the extracted gas, the combustion mode dedicated to the vaporized gas is of a cylindrical type, and the gas body in the cylindrical casing is rotated in the supply atmosphere to generate a centrifugal force action in the casing to vaporize for light combustion. Achieves high-density high-temperature combustion and convection heat conduction protection by realizing continuous stirring combustion in a pillar of fire that promotes mixing with the atmosphere while preventing gas diffusion.

As a rotating means for confining the flame-fired column in the central portion by the action of centrifugal force in the circular housing, a plurality of vertical slits are provided in the cylindrical housing, and the air is blown in the same direction from all the slits toward the inner tangent line. .

Although the combustion atmosphere of the normal temperature atmosphere is rotatably supplied to the combustion casing, since the rotation supply atmosphere is overheated as a result of being taken into the flame burning column as the combustion atmosphere during several revolutions, it is subjected to centrifugal force. Since it flows into the central part against it, it does not cause the flame-fired columns to cool.

As a means for eliminating the heat insulating structure of the combustion chamber, the first convection heat conduction is prevented by the preceding stage 0051. As a second radiant heat transmission defense, the inner surface of the combustion chamber is made a mirror surface to protect from all radiant energy emitted from the pillar of fire in the housing.

The combustion housing also has some heat absorption. The heat energy is continuously supplied by the atmosphere, which flows through the inner and outer wall surfaces of the combustion casing to maintain cooling.

As a means for completely decomposing organic compounds, the cylindrical mirror surface of the housing reflects all the energy emitted from the combustion column,
A super energy density band is formed in the housing core wire. When the central gas, which is the most delayed in the fire spread reaction, is excited, the organic compounds are ionized and ionized, and when they move to the outside of the flame burning column due to convection, the carbon component with the slowest combustion reacts with the supply atmosphere at a high speed to produce carbon dioxide. As a result, the chlorine molecules bound to the organic compound become single molecules and are released into the vaporized gas.

[Work]

By avoiding the common burning method of direct combustion of waste, which is conventionally divided into smoldering gas vaporization combustion, only vaporized substances are properly burned, and solid substances are recovered as carbides. As a result, carbon dioxide emission in flame gas smoke is minimized. As a result, the amount of organic compounds is extremely reduced as a result of less carbon molecules and the total amount of calories burned reduces the amount of heat released to the atmosphere. Became.

Harmful chlorine-based organic compounds have strong electron covalent bonds, and currently have no chemical decomposition method and only thermophysical physical destruction. The diffusion means of the combustion column increases the combustion temperature density,
Focal point formation on the cylindrical mirror surface forms a high energy band. Since both of them promoted excitation of each of the binding molecules and gave an ionization phenomenon, the benzene nucleus of the carbocycle and chlorine and hydrogen bound to it become carbon dioxide gas and water, and only the chlorine component produces a single release action, It is the best action result that can be made harmless without using special energy.

There is an oxidation region of the residual carbide which does not exist in other combustion furnaces, and the oxidation harmless treatment of the metals contained in the exhaust such as incineration ash due to the combustion of the residual carbide can be performed. As a result, incineration ash for managed final disposal can be consumed as acidic soil modifier and cement raw material, and carbide is also safely consumed as fuel and activated carbon together with soil modifier, and a final disposal site for incineration ash is required. It will not be necessary to secure a final disposal site, which has become a social problem.

Compared with the most excellent tweeter furnace system among the models described in the prior art, there are many decisive actions. Firstly, the whole system can be divided into two parts and constructed in parallel, which enables weight distribution and height control. As a result, the basic construction cost can be significantly reduced, the weight load of the structure can be significantly reduced with respect to the frame structure, and the construction cost design and strength design can be significantly reduced, while the high position of maintenance and maintenance can be reduced and safety can be reduced. Produces a reliable combustion furnace.

Compared to conventional multi-model combustion furnaces, most of the structures require metals such as stainless steel, and when dismantling due to their useful life, they all become dismantled, and the environment friendly to the earth has been demanded in the 21st century. It becomes a circulation type plant.

As described in the detailed description, the plant of the present application has no heat insulator. In addition to the inspection and maintenance of peripheral support equipment for the periodic inspection of the plant, repair and replacement of the heat insulation layer peculiar to the combustion furnace are the most important, time-consuming and expensive inspection and maintenance. This can be eliminated at all.

Another important maintenance is the grate which ensures air permeability and suppresses the formation of organic compounds. Vertical ventilation is horizontal to the two grate, and soluble flammable materials of flame retardant are
Since it melts and evaporates in the vertically stacked ore lumps, the grate of the present invention is always clean and can always enter the optimum combustion environment even if the operation is repeatedly stopped.

The method of rotating and burning at the center in the circular mirror housing produces a high-density and high-temperature burning action, and in addition, the energy is reflected by the 360-degree cylindrical concave mirror to focus on the center.
The existing combustion furnace has a high-energy peak line above 2000 ° C, which is insane, and all organic compounds that touch the peak line are ionized, causing the decomposition decomposition oxidation phenomenon to be harmless exhaust gas.

As a result of supplying a large amount of rotation promoting atmosphere to the combustion chamber, the combustion-completed exhaust gas is mixed in the flue gas converging passage and becomes the high-concentration oxygen residual exhaust gas, while handling the initial flue gas temperature for flue gas treatment. Creates the effect of lowering the temperature to an easy range

【Example】

FIG. 7 shows the whole picture as a schematic cross-sectional view.
In the same basic part of the detailed description, as illustrated with a specific peripheral support system required for the embodiment, the solid substance is separated into a region 47 and a vaporized gas high temperature combustion region 48,
It is a figure which connects with the vaporized gas conveyance pipe 49.

First, the procedure of ignition of the combustion furnace will be described. Starting from the residual heat of the vaporized smoky coal detoxification treatment area 10, the initial operation is a waste heat suction blower fan 33 / independent closed area cover 32 to the area.
Combustion / Ignition pilot lamp 5 of preheating burner 50 in
The combustion / combustion housing rotating atmosphere supply fan 52, the mixed atmosphere supply fan 53, and the like of No. 1 gently operate, and the preheated gas circulates in the vaporized gas transfer pipe 49 through the gas combustion furnace 15 .

The heating gas for preheating contains oxygen, and the combustible material in the vaporized smoldering area (grate) 3 begins to burn, the residual heat circulating gas starts to rapidly rise in temperature, and then the turntable 54 slowly and slowly rotates. Then, the gradual flow of mixed combustibles also started,
Combustible substances in the smoldering coal vaporization region 3 are not smoldering coal but are directly combusted, and all of them are gentle initial combustion operations, but as a result of not requiring heating of the heat insulator, the temperature rises rapidly.

Next, in the environment where the unburned gas appears in the burner area 11 and the self-combustion of the burner which does not emit the flame starts, the combustion gas suction temperature sensor and the vaporized gas temperature sensor 55 detect 400 degrees, and the inner wall of the combustion housing 15 is detected. The preheating operation and the ignition pilot combustion are stopped by the sensing operation of the light beam sensor 46 provided in the above, and both the air supply fan 33 and the cooling air supply fan 36 to the oxidation aging region 8 are operated, and all the functions enter the normal operation, and the full-scale combustion is performed. In the process operation period, the exhaust gas temperature after combustion for smoldering coal vaporization applications exceeds 1500 degrees.

A specific example of efficient combustion and maintenance of a combustion environment will be described. The atmosphere of the burner-combustion atmosphere air supply fan 53 passes through the spiral cooling passage 57 of the combustion guide cylinder 13,
The ventilated atmosphere is superheated around 400 degrees and is rotatably supplied around the burner combustion. The reason for naming it as the spiral cooling passage 57 is that the twist blade 21 is provided on the inner wall for the purpose of rotating the combustion guide cylinder 13 in the air to be sent. Since the twist blade 21 is close to the high temperature combustion gas body and is affected by it and overheats, a waste heat fin for overheat protection is required on the back surface. The exhaust heat effect is enhanced and the supply atmosphere is made into a superheated atmosphere, thereby promoting both effects of enhancing combustion efficiency.

The atmosphere blown to the vaporized gas combustion housing 15 is
It is obtained by an air supply fan 52 having a wind pressure in a diagonally downward direction. As described above, the air supplied to the combustion casing 15 is transferred to the casing once. As a result of feeding the atmosphere obliquely downward, as shown by the swirling rotation arrow 58 in the figure, initially the atmosphere slowly rotates downward along the wall surface of the housing, and the atmospheric temperature becomes 300 as it is taken into the flame spread gas.
It goes up while exceeding the temperature, and at the tip of the combustion, it rotates up with the combustion gas and reaches the disposal route. As described above, the flow of the combustion atmosphere is the flow of the atmosphere in the combustion housing, which does not exist in the conventional combustion furnace at all. In the figure, a plurality of same-direction arrows 59 indicate the flow of the atmosphere fed into the combustion housing.

As shown in FIG. 5 described above, the flow of the air sent to the inside of the gas combustion casing is such that the combustion gas rising in the state of the cylindrical flame 22 intersects with the horizontally rotating supply atmosphere, and the intersection physically occurs. Regular mixing is promoted with the atmosphere, which becomes a source of oxygen by obtaining a hydrodynamic effect, to achieve continuous complete combustion.

The shape of the burning flame provides very important information. The combustion flame that burns on the grate of a conventional combustion furnace is mainly of a candle shape shown in FIG. 8. The candle is supplied with vaporized gas for combustion from a wick 60 and reacts with the atmosphere on the flame surface to reduce the vaporized gas. Is a form of a natural phenomenon that is thin and thin.

According to the combustion observation of the existing combustion furnace (other combustion furnaces including the stalker furnace which occupies 85% of the local governments nationwide), the combustion flame is as shown in FIG. That is, the sharp and dazzling combustion body 6 that reacts to the atmosphere that is intensively ejected from the gap between the laminated combustible materials 61.
2. Combustion of vaporized gas generated from the surroundings is a fluctuating candle-shaped combustion flame 63. The fireball-shaped flame 64 generated away from the tip of the fluctuation combustion flame 63 burns in the pot.
The cause is re-combustion of unburned gas generated by incomplete combustion due to lack of oxygen. It can be predicted that harmful substances such as dioxins are generated in the area surrounded by the broken line circle 65 in the figure,
It can be said that candle-type combustion cannot occur in a combustion furnace.

It has been proved that the shape of the flame in the main combustion casing is a very important combustion indicator.

A practical example of the smoldering area 7 and the quenching cooling area 9 will be described in detail. As for the gas to be sent to the smoldering gas vaporization region 3 and the quenching / cooling region 9, the oxygen-deficient gas is desirable as much as possible, and the waste heat gas suction port 50
Is placed in the central part of the tip of the combustion column and sucked. Since it is exposed to a high temperature of 1500 degrees or more, it is optimal to use heat-resistant ceramics, and physical strength is not required so much, but it is necessary to consider the heat resistance of the ventilation passages that follow, and It is consumed for preheating and cooled below 800 degrees.

Exhaust gas cooled to approximately 800 degrees or less is provided to the vaporized smoldering area 3 by bypassing the spiral groove 65 around the outer periphery of the combustibles input hopper area 7 (preheating area), and high temperature expectation for vaporized smoldering coal Utilized as. The oxygen-deficient flue gas at room temperature to be sent to the quenching / cooling area 9 is the closed air passage 6 of the lift-up belt conveyor 69 of the ore cycle transfer line described later.
At 7, the temperature of the waste heat is lowered by ore preheating, then the temperature is lowered to near room temperature by the cooling air 36, and it is sent to the quenching / cooling area 9 by the suction fan 37 for the smoke for quenching / cooling. Since it is a dry gas during air supply, the temperature is further lowered by the heat of vaporization and absorption of water that is added.

The waste machine bodies of the oxidation aging area 8 and the cooling and extinguishing air area 9 are also collected in the central cylindrical body 2, and finally burnt together with vaporized gas for safety or treated at a high temperature and released as harmless exhaust gas. .

A detailed description will be given of the circulation cycle of the combustion-mediated heat-resistant ore 38. The ore carry-in conveyor 66 is also a preheating area, and the heat-resistant ore 38 is charged into the combustible material charging hopper 7. Combustible combustibles are scattered on the minerals by the combustible transporting conveyor 67 on the charging conveyor 66, and the charging conveyor 66 charges the both into the hopper in the preheating region 7 as a mixed combustible.

The mixed combustibles reach the lowest stage through the preheating / vaporized smoldering area / oxidative aging area and quenching / cooling area. It is the discharge turntable 54 located at the discharge port 70 for the vaporized combustion residues at the bottom that controls this downward movement.

The detoxified solid residue discharged by the discharge rotary table 54 is guided to the collection / moving conveyor 69 and charged into the separating device 70, and the hot ore to be separated into the carbide / incineration ash and the heat-resistant ore is lifted up. Transfer to the conveyor 69 and circulate.

The temperature of the heat-resistant ore is overheated to about 100 degrees while the lift-up conveyor 69 is being raised. As a result, a large amount of offensive odor is emitted from the combustible material including the garbage placed on the ore carry-in conveyor 66. As an external environment protection, an offensive odor recovery canopy 71 is provided above the preheating area 7, and an offensive odor waste port 73 is provided in the vicinity of the combustion rotary gas blowing fan 52, and is conveyed under the influence of the suction of the rotary atmosphere blowing fan 52 to be exposed to the atmosphere. The mixture is mixed and sent to the combustion furnace as combustion air for deodorization.

Although the detailed structure will not be described, the means for separating solid wastes uses the difference in specific gravity due to water, the carbides serve as means for preventing destructive pulverization, and the waste liquid is used for reinforcing the combustion environment without discharging the waste liquid.

From the above analysis, carbon molecules form a strong benzene ring of electron covalent bond in the discontinuous portion of the fireball free combustion separated from the main flame 63 and surrounded by the circle 65. If there is salt or chlorine molecules generated from chicken eggs or vinyl chloride around it, chlorine and carbon monoxide are taken in by electron covalent bonds in the benzene ring, and the same rings are bound to each other, resulting in hydrogen from steam during flue gas cooling treatment. The inventor observed and analyzed that it took in and grew into full-scale dioxin.

The combustion environment in which organic compounds are not synthesized is 1
Maintaining the temperature above 200 degrees for 3 to 5 seconds, and remaining oxygen concentration in the exhaust gas of 6 to 8% or more. The present invention that overcomes the above two themes, the combustion casing is a cylinder with an inner mirror surface, and the centrifugal force action of all gas rotation in the circular casing confine it in the center of a light combustion flame to prevent self-energy diffusion. Next, the cylindrical mirror surface has a focus on the center line of the cylinder, and collects all the heat energy and light wave energy emitted from the flame spread at the center of the flame spread, and the heat energy is transferred to the gas that has passed through the high energy band by convection stirring of the gas spread. Since it exerts an optical energy action to ionize gas molecules and rapidly promote oxygen bonding, retention for a long time is not necessary.

【The invention's effect】

First, as described in detail in the embodiments, it is needless to say that the most important organic compounds are not generated in the combustion system, but the combustion exhaust gas and solid residue oxidation cooling discharge which can be understood from the flow of the whole system are understood. It became an ideal combustion furnace system that operated in a closed system all the way up to, and had nowhere to treat the question and indication of harmful substance discharge and work environment pollution for all gas liquid solids. .

The heat insulation structure, which was common in vapor gas combustion furnaces and furnace housings that burns at extra high temperatures, is eliminated by a revolutionary means that overcomes radiative heat conduction and convective heat conduction by means of a mirror surface and a rotary combustion method. The environment in which the organic compound that can burn above 1500 ° C and above 800 ° C which is impossible in the furnace is not synthesized is maintained at 1200 ° C for 3 to 5 seconds and the residual oxygen concentration is 6 to 8% or more. Even though the government side is aware of this combustion environment value, there is no bid participation qualified company with a corresponding combustion furnace, and it was decided to keep it in the academic announcement and to avoid incomplete combustion due to slow combustion by administrative guidance, The most difficult maintenance environment is long-term retention in the combustion reaction time zone. Three
The smoke emission gas reaches the disposal route before ~ 5 seconds.
It is necessary to finely adjust the amount of oxygen supply and combustibles to control the disposal rate.
Conventional combustion furnaces require advanced technology. Although the combustion temperature in the combustion furnace casing of the present invention exceeds 1500 degrees, the vaporized gas of the combustion column 22 in the process of combustion is in a low temperature zone because it does not come into contact with oxygen, but the inner wall of the combustion casing 15 is a mirror surface. As a result of the housing 15 having a cylindrical surface, the reflection focal point becomes the center of the flame burning column, creating a high energy region. This high energy band ionizes or plasmases gas molecules,
The effect of increasing the decomposition and combustion efficiency of compound organic molecules is obtained.

There is a significance and effect in the form in which the vaporized gas continuously burns as a flame burning column shown in FIG. Conventional combustion furnace flame Fig. 9 The cause analysis is as follows: 1. It is possible to analyze that the candle tip flame in the combustion furnace does not occur due to exhaustion of combustible gas, but occurs due to oxygen deficiency.
2. Oxygen-deficient, unburned gas is wrapped in mild residual oxygen and burns like a fireball away from the main flame in a pot and has no new combustible gas supply route, resulting in free combustion. 3. Since hydrogen gas, which has a fast reaction rate, precedes combustion of the remaining unburned gas, the carbon component vaporizes in the form of carbon monoxide, etc., and only the gas with a slow combustion reaction concentrates, causing growth of organic compounds. Determined to be. Therefore, during the continuous columnar flame burning by the combustion furnace of the present invention, the flame burning column is effective in not producing an organic compound.

Regarding the exhaust gas disposal rate, as described above, it is a direction in which the air to be blown into the combustion housing is enclosed, and is basically horizontal rotation. During the upward combustion, the transition direction is linear. Although the combustion furnace does not require a long residence time, this straight chain has the effect of suppressing the rising speed of rising flue gas.

Eliminating the heat insulating structure from the combustion casing can reduce the plant construction cost significantly, but the maintenance cost and the periodic maintenance period can be suppressed to one-third or less of the conventional combustion furnace, and the total cost performance can be reduced. Exerts a great social burden reduction effect.

As a result of taking out the carbon component from the combustibles as a solid, as a result of simply producing a recycled material, the relative amount of exhaust heat of the combustibles is suppressed and a significant effect of suppressing carbon dioxide gas is produced. Extremely reduce the amount of compound materials and exert a revolutionary effect that makes a great contribution to the prevention of global warming.

The physical structure is composed entirely of metal except for the foundation part, and there is no heat insulating structure except for a part of heat retention and protection part, and the whole is a metal structure, which means that it is a waste after its useful life. Becomes a recyclable waste, which is an environmentally friendly structure that is kind to the earth these days, and the effect that the waste treatment plant does not turn it into waste.

Solid waste, mainly incinerated ash. The oxidation area is mainly for the purpose of metal oxidation, and the main purpose is aging for the purpose of discharging the gas which is feared to be contained in the incineration ash. As a result, all metals are converted into the most stable and harmless oxides, and the incineration ash is also made into only ash components, and there is no harmful metal leakage that is mixed with oxidative powder or is undetectable, so a management-type disposal facility is required. Do not take incinerated ash. As a result, the environment for utilization as a recycled material is surely awaited, and as a measure against the coming acid rain, it is sprayed in forests and fields and used as a cement raw material.

It is of great significance that the environment in which waste is safely utilized is obtained, and the construction economic burden and environmental burden including logistics from the incineration process to the final disposal site, including the generation of waste, excluding plant maintenance, Every administrative burden. It has a great social load on society, and the effect of reducing the total load on society is reduced to a fraction.

[Brief description of drawings]

FIG. 1 is a diagram showing a basic form of two-plane vertical grate combustion and a cylindrical grate thereof.

FIG. 2 is an overall operation diagram of the invention combustion furnace.

FIG. 3 is a plan view of a vaporizing gas-dedicated combustion housing, showing a plan view of a rotary housing and a mirror-like housing.

FIG. 4 is a plan view of the mixed grate.

FIG. 5 is a side view of combustion in a vaporized gas combustion housing.

[Fig. 6] Comparison of combustibles in mixed combustibles and non-industrial combustibles

Figure 7 Candle flame

FIG. 8: Combustion flame on the grate

FIG. 9 is a diagram showing an overall embodiment of a cylindrical grate.

[Explanation of symbols]

1 Outer Cylindrical Grate 24 Spiral Arrow Line 2 Inner Cylindrical Grate 25 Outer High Reaction Temperate 3 Cylindrical Upright Grate (Region) 26 Intermediate Middle Temperate 4 Donut Cylinder Space 27 Central Low Temperature Zone 5 Hot Gas Arrow 28 Ascending Vector Arrow County 6 Vaporization Gas arrow 29 Temperature zone agitation arrow 7 Mixed combustion product input (remaining heat) area 30 Relative agitation arrow 8 Oxidation aging area 31 Real broken arrow 9 Cooling area 32 Single closed area cover 10 Vaporized charcoal combustion simple zone 33 Suction air supply fan 11 Gas Burner area 34 Air supply fan 12 Mixed grate 35 Non-ventilation area 13 Combustion guide tube 36 Cooler 14 Donut-shaped cylindrical space 37 Suction air supply fan 15 Combustion housing 38 Spray nozzle 16 Cylindrical panel 39 Heat-resistant mineral mass 33 Suction air supply fan 62 Sharp combustion flame 34 Air supply fan 63 Fluctuation combustion flame 35 Non-ventilation area 64 Fireball detachment flame 36 Cooler 65 Spiral groove 37 Suction and air supply fan 66 Heat-resistant ore carry-in conveyor 38 Spray nozzle 67 Combustible material input conveyor 39 Heat-resistant mineral mass 68 Recovery transfer conveyor 40 Resin wash basin and cup 69 Lift-up conveyor 41 Square pillar wood chip 70 Sorting device 42 Wooden plate 71 Canopy 43 Plastic film 72 Exhaust port 44 Garbage P High energy band 45 Vent arrow 46 Enclosed figure 47 Vaporized gas combustion area 48 Vaporized gas combustion zone 49 Vaporized gas carrier pipe 50 Suction port 51 Ignition pilot 52 Rotating atmosphere for combustion housing Fan 53 Mixed-air fan 54 Discharge rotary table 55 Suction gas and vaporized gas temperature sensor 56 Combustion light sensor 57 Spiral cooling passage 58 Spiral rotation arrow 59 Multiple same-direction arrows 60 Candle core 61 Laminated combustible material

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) F23L 7/00 F23L 7/00 Z F23M 3/18 F23M 3/18 5/00 5/00 H // F23M 3/20 3/20 9/00 9/00 DF term (reference) 3K023 EA03 JA01 JD02 3K061 AA24 AB02 AC01 CA07 FA12 FA21 FA25 FA28 3K065 AA24 AB02 AC01 CA04 3K078 BA08 CA02 CA06 CA12 CA18

Claims (9)

[Claims] 1. A grate 3 for collecting vaporized gas from a moving combustible substance through both grate in a vertical direction while keeping a space 4 between the two grate 1 and 2. 2. A grate 3 is closed on one side into upper, middle and lower parts,
Different oxygen-free gas, atmospheric air, and oxygen-free cold air are sent to the respective closed areas in this order from the top to make continuous treatment of detoxifying solid waste of combustible materials. 3. The vaporized gas collected in the exhaust gas in all three treatment areas by the grate 2 is burned in the central portion of a cylindrical combustion casing 15 dedicated to the vaporized gas. 4. The inner surface of the cylindrical combustion casing 15 is a mirror surface to protect against radiation heat conduction. 5. A means for protecting the cylindrical combustion casing 15 from convective heat conduction is integrated by centrifugal action of all gas rotation, light high-temperature gas is accumulated in the central portion, and heavy low-temperature gas is accumulated in the circumferential portion, and convective heat is accumulated. Defend against conduction. 6. The cylindrical body of the cylindrical combustion casing 15 is composed of a plurality of independent cylindrical curved surface plates 16, and each joining line overlaps with the overlap shape 17 while keeping a gap 18. 7. The gas rotating action in the cylindrical combustion casing 15 is to blow strong atmospheric air into the tangential direction of the inner curve through the gaps 18 of the respective joining lines, and rotate the atmospheric air in the combustion casing 15 by the blowing wind pressure. 8. The inner mirror surface of the cylindrical body has a reflection energy focus at the center line of the cylinder and forms high energy vertical lines of thermoelectrons and light waves at the focus. 9. A combustible material is charged by mixing with a crushed mass of ceramics high-temperature heat-resistant mineral to form a three-dimensional space layering medium that maintains the air permeability of combustible materials.