JP2006329612A - Incinerator and incineration method suitable for incinerating dead body of pet or the like - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an incinerator and an incineration method suitable for incinerating the dead body of a pet capable of reducing easily a temperature of hot gas to about 200°C or less, and capable of clearing easily a regulation for the incinerator by a law, when discharging the hot gas from a combustion zone, from a stack (gas cooling tower) to an outside. <P>SOLUTION: This incinerator/incineration method is provided with a primary combustion zone equipped with a burner for burning an incinerated object such as the dead body of an animal, a secondary combustion zone equipped in an upper side of the primary combustion zone, the gas cooling tower (stack) provided in an exhaust side of the secondary combustion zone to discharge the gas from the secondary combustion zone, and an atmospheric air intake port provided in a midway portion of a flow passage for guiding the hot gas from the secondary combustion zone to the gas cooling tower (stack), and for taking the atmospheric air for reducing temperature of the hot gas in from the outside. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an incinerator and incineration method suitable for incinerating the bodies of pets such as dogs, cats and tropical fish, and the bodies of small experimental animals such as guinea pigs.

Conventionally, a body incinerator for cremation of the bodies of pets such as dogs and cats is known. A conventional animal corpse incinerator simply installs a large-capacity burner in the furnace and incinerates the corpse with a flame from the burner (see, for example, Patent Document 1).
JP 2003-333948 A

  By the way, the conventional incinerator for animal bodies has the following special features compared with the incinerator for ordinary garbage. In other words, the bodies of small animals for pets, the bodies of tropical fish, and the incineration (cremation) of corpses (corpses) such as experimental animals, the size of the animals to be treated differ significantly depending on the case, from 100g for small to 60Kg for large. Since the amount of body fat varies greatly depending on the age of the animal, treatment different from general waste is necessary. In particular, body fat from the corpse liquefies as the temperature rises during cremation, leaks from the damaged part of the skin, spreads to the hearth surface, spills from the gap between the moving hearth and the side wall, and fouls the floor. It will cause a bad odor. In addition, this liquefied fat is mixed with a large amount of water to become an emulsion (a mixture of fat and water), which takes away the latent heat when water evaporates and prevents the temperature from rising to the ignition temperature. Inhibits burning.

  In addition, the size of bones of animal bodies can reach a diameter of 5 cm or more from the size of a sewing needle or toothpick like a hamster bone. In the case of cremation of large bone animals, a very hot flame is required to incinerate the bone marrow in a short time. On the other hand, in the case of cremation of toothpicks-sized bone animals such as hamsters, There is a problem in that the flames of this are blown away and bones cannot be picked up (recovery of the remains).

  In addition, since chlorine and organic substances contained in body fluids and blood of animal bodies are mixed and combusted, dioxins are generated in low-temperature combustion. In addition, there are many cases in which toys (often made of vinyl chloride) that animals were familiar with before being put in cages are also a cause of dioxin generation.

  Also, if the large dog lays down and is stiff after death, the legs will get in the way and the torso cannot be placed in the center of the hearth. Even if a flame is blown directly on the center of the hearth, the large dog In many cases, the body cannot be heated.

The present invention has been made by paying attention to the peculiarity of the incinerator for animal corpses as described above, and the object thereof is as follows.
(1) In conventional incinerators, when the hot gas from the combustion chamber is discharged from the chimney (gas cooling tower) to the outside, it is technically difficult to reduce it to about 200 ° C. or lower. There was a problem that the legal regulations of the furnace could not be cleared easily. Thus, the present invention can easily reduce the hot gas from the combustion chamber to about 200 ° C. or less when discharging the hot gas from the chimney (gas cooling tower) to the outside and easily regulate the legal regulations of the incinerator. An object of the present invention is to provide an incinerator suitable for incinerating the bodies of pet animals that can be cleared.
(2) In the conventional incinerator, there is a risk that dioxins are generated because incomplete combustion and combustion delay are inevitably generated only by combustion by flame from the burner. Therefore, the present invention provides a combustion furnace and an incineration method for an animal corpse and the like that can surely completely burn the entire incinerated object such as an animal corpse and effectively prevent the generation of dioxins. Objective.
(3) The problem that if a large dog is incinerated just by having a burner in the combustion furnace like a conventional animal corpse incinerator, there will be a place where the flame is blocked by the corpse and cannot reach. There is. Further, when combustion is performed with one burner, a combustion delay occurs on the counter-burner (downstream) side. Therefore, the present invention prevents a situation in which when a large dog or the like is incinerated, a flame does not reach and an unincinerated part remains, or a part of the combustion delay occurs and the entire combustion time is extended. The purpose is to provide an incinerator for animal bodies that can be used.
(4) Further, in the conventional combustion furnace, there is a possibility that dioxin is re-synthesized in the process in which the gas and residue after combustion float in the exhaust chimney. Accordingly, the present invention provides a combustion furnace such as an animal corpse that can effectively prevent dioxin from being re-synthesized due to floating of gas or residue after combustion in an exhaust chimney or the like. With the goal.
(5) In addition, in conventional incinerators, a large amount of body fluid and fat from the corpse accumulates in the moving hearth (particularly large corpses remain fat), and the floor surface inside the combustion chamber outside the moving hearth There is a problem that the floor overflows and the floor surface is soiled and a bad odor is emitted after the incineration. Therefore, the present invention is an incinerator for animal bodies that prevents body fluids and fats from the body from flowing out of the moving hearth, and prevents the combustion chamber floor and the like from being soiled or generating bad odors. The purpose is to provide.
(6) Moreover, in the conventional incinerator, since the moving hearth is flat, the lower part of the corpse in close contact with the moving hearth becomes insufficient in temperature and oxygen, causing incomplete combustion, and odor, dioxin or black smoke is generated. Also, there is a problem that it takes a long time to incinerate from the same cause. Then, an object of this invention is to provide the incinerator of the corpse of the animal which can burn efficiently also the lower part of the corpse mounted in the moving hearth.
(7) In addition, in the conventional incinerator, when incinerating small animals, there is a problem that bones are blown off by the momentum of the flame from the burner during incineration, and bones cannot be recovered later. SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an incinerator for an animal corpse that enables easy recovery of bones by preventing the bones of the corpses from being scattered even when the bodies of small animals such as guinea pigs are incinerated. And
(8) Also, in conventional incinerators, fat-containing liquid from animal bodies remains in the moving hearth on which the body is placed, but this liquid does not self-combust because of its high water content, and this liquid has a combustion temperature. Since it lowers, it also causes dioxin generation. In addition, due to the lag in combustion with the liquid, it takes a long time to incinerate the corpse. Therefore, an object of the present invention is to provide an incinerator for animal bodies that can effectively burn the liquid from the animal bodies accumulated on the moving hearth.
(9) Also, in the conventional combustion furnace, when cremation of the remains of multiple animals is operated continuously, residual gas from the previous operation remains in the furnace, or the temperature inside the furnace becomes higher than 300 ° C. There was a problem that the next operation (cremation) could not be entered immediately (operation efficiency would be reduced). Therefore, the present invention exhausts the residual gas of the previous operation at a high speed during the continuous operation as described above, and rapidly cools the inside of the furnace heated at the previous operation to room temperature so as to immediately move to the next operation. It is an object of the present invention to provide an incinerator suitable for incinerating the remains of pet animals and an incineration method using the incinerator.

  The incinerator suitable for incinerating the remains of pet animals according to the present invention for solving the above problems is an incinerator for incinerating the bodies of animals, etc. A primary combustion chamber provided with a burner for burning gas, and a secondary combustion chamber provided above the primary combustion chamber for completely burning unburned gas sent from the primary combustion chamber, A stabilizer for accumulating heat to generate radiant heat and hot air swirl, and a space in the secondary combustion chamber and a smoke-extinguishing burner for heating the stabilizer with a high-temperature flame, the primary combustion chamber A secondary combustion chamber for suppressing the production of dioxins by completely burning the unburned gas sent from the combustion chamber, and a discharge side of the secondary combustion chamber, and exhausting the gas from the secondary combustion chamber. A gas cooling tower (chimney) and a passage part for guiding the hot gas from the secondary combustion chamber to the gas cooling tower (chimney) for reducing the temperature of the hot gas And an air intake for taking in air from the outside.

  In the present invention, it is preferable that the gas cooling tower (chimney) lowers the temperature of the gas passing through the gas cooling tower (chimney) to about 200 ° C. by the atmosphere from the atmosphere intake port. .

  Further, in the incinerator according to the present invention, the primary combustion chamber is configured such that the body of the pet animal placed on the movable moving hearth is flamed from the direction of the head or the buttocks toward the buttocks or the direction of the head. A main burner that discharges the body so that when a relatively tall animal lies on the hearth, it faces the longitudinal centerline of the body, ie from the longitudinal centerline of the moving hearth A main burner disposed so as to face the eccentric position, and a sub-burner for compensating for heat shortage at the farthest part of the main burner, in a direction substantially perpendicular to the flame from the main burner And a secondary burner for releasing the flame. The present invention (particularly the idea of arranging the main burner eccentric from the center of the moving hearth) is an incinerator having two combustion chambers, the primary combustion chamber and the secondary combustion chamber. The present invention is not limited and can be applied to an incinerator having only one combustion chamber.

  The incinerator according to the present invention is a gas cooling tower provided on the discharge side of the secondary combustion chamber, and includes an ejector fan for taking in outside air at a high speed, and the air from the ejector fan The heated air from the stabilizer is taken in, and the taken-in heated air is rapidly cooled to about 200 ° C. and discharged to the outside, so that the dioxin is regenerated by the gas sent from the secondary combustion chamber. It is preferable to provide a gas cooling tower that is prevented from being synthesized.

  The incinerator according to the present invention is a refractory dam provided around the mobile hearth, wherein fat from the animal remains on the mobile hearth flows out of the mobile hearth. It is better to have a dam to prevent it.

  In the incinerator according to the present invention, the refractory uneven portion provided on the upper surface of the moving hearth is supplied with oxygen and hot gas to the lower part of the animal body placed on the moving hearth. It is good to provide the uneven | corrugated | grooved part for ensuring the ventilation space for doing.

  Further, in the incinerator according to the present invention, the sand particles or sand-like particles having a particle diameter of about 2 to 5 mm spread in the recesses of the uneven portions on the upper surface of the moving hearth, It is preferable to provide particles for guiding oil components such as fats upward and burning them in a furnace.

  Further, in the incinerator according to the present invention, it is an area for placing a small animal provided on the upper surface of the moving hearth, provided in a place where the flame from the main burner and the auxiliary burner does not directly hit, and around it. It is preferable that a fireproof plate made of a refractory is provided and a small animal placement area that can prevent the remains of the small animal from being scattered by the flame from the burner.

  In the incinerator according to the present invention, the gas cooling tower discharges the residual gas generated during the previous cremation process to the outside at a high speed when moving from the cremation process of one corpse to the cremation process of the next corpse. It is preferable to provide an ejector fan for rapidly cooling the combustion chamber heated during the previous operation to room temperature.

  Furthermore, in the incineration method using the incinerator according to the present invention, before igniting the primary combustion chamber, the step of raising the temperature of the secondary combustion chamber in advance to a temperature of 800 ° C. or higher that prevents the generation of dioxins, and After the temperature of the secondary combustion chamber is raised to 800 ° C. or higher, igniting the primary combustion chamber and incinerating the incinerated objects such as animal remains, and the generation of dioxins at the time of starting up the primary combustion chamber It is characterized by preventing it.

  As described above, in the present invention, an air intake for taking in air from the outside is provided in the middle of the passage for guiding the hot gas from the secondary combustion chamber to the gas cooling tower (chimney). Since the hot gas from the secondary combustion chamber passes through the gas cooling tower (chimney), the temperature is easily lowered to about 200 ° C. by the air introduced from the outside. As a result, it becomes possible to easily clear the legal regulations regarding incinerators.

  Further, in the present invention, since a secondary combustion chamber having a smoke-extinguishing burner and a stabilizer is provided above the primary combustion chamber, the generation of dioxins of “residence time of about 2 seconds or more at about 800 ° C. or higher” is prevented. Conditions to prevent can be achieved.

  In the present invention, the secondary combustion chamber is sufficiently heated before ignition of the primary combustion chamber, and then the primary combustion chamber is ignited, so that dioxins are generated when the primary combustion chamber is started up. It becomes possible to prevent effectively. In other words, the primary combustion chamber alone cannot prevent the formation of dioxins during the period from when the primary combustion chamber is ignited until the temperature is raised to 800 ° C. However, in the present invention, the secondary combustion chamber is first ignited sufficiently ( Since the temperature is raised (above 800 ° C to prevent dioxin generation), the primary combustion chamber is then ignited to incinerate the body, effectively preventing the generation of dioxins when starting up the primary combustion chamber It can be done.

  Further, according to the present invention, the main burner is placed in the primary combustion chamber so that when the large animal lies on the hearth, it faces the longitudinal centerline of the corpse, that is, the longitudinal centerline of the moving hearth. It is arranged so as to face the eccentric position from the center of the animal (so that the flame is released along the central axis of the animal). Is possible. Further, in the present invention, in order to compensate for the heat shortage at the farthest part of the main burner, the auxiliary burner that emits the flame in a direction substantially orthogonal to the flame from the main burner is provided. The shadowed portion is eliminated, and the unburned portion or the burning delay portion can be eliminated.

  In the present invention, a gas cooling tower for rapidly cooling the gas from the secondary combustion chamber to about 200 ° C. is provided on the discharge side of the secondary combustion chamber. This makes it possible to prevent the recombination of dioxins from the gas from the secondary combustion chamber. That is, when the temperature drop from 800 ° C. is slow (slow cooling), residual organic matter and chlorine gas in the unburned gas are re-synthesized in the exhaust chimney, and dioxins are generated. Since the unburned gas is quenched by the gas cooling tower, dioxin resynthesis is prevented.

  Further, in the present invention, since a refractory dam is provided around the moving hearth, fat from the remains on the moving hearth flows out of the moving hearth, and the floor or the like is soiled. It can prevent becoming a source of bad odor.

  Further, in the present invention, a refractory uneven portion is provided on the upper surface of the moving hearth, and a ventilation space for supplying oxygen and hot gas is secured to the lower part of the body placed on the moving hearth. As a result, the problem of combustion delay due to heat shortage and oxygen shortage in the lower part of the body is solved.

  Further, in the present invention, since the sand-like particles are spread in the recesses of the concavo-convex portion on the upper surface of the moving hearth, oil such as fat that has flowed out of the corpse and accumulated in the concavo-convex portions Vaporization is facilitated by the “light core effect” of sandy particles (the same effect as a candle light core that facilitates vaporization by sucking fat above the liquid surface by the capillary effect of the sandy substance).

  Further, in the present invention, a small animal placement area surrounded by a flameproof plate made of a refractory material is provided in a place where the flame from the main burner and the auxiliary burner does not directly hit the upper surface of the moving hearth. , It is possible to avoid the disadvantage that the remains of small animals are scattered by the flame from the burner and cannot be recovered.

  In the present invention, the gas cooling tower is provided with an ejector fan, and when the ejector fan moves from the cremation process of one corpse to the cremation process of the next corpse, residual gas generated during the previous cremation process is externally In addition, since each combustion chamber is cooled to room temperature at high speed, the transition to the next cremation in the case of continuous operation can be performed more quickly.

  The best mode for carrying out the present invention is a mode as described in Example 1 below.

  FIG. 1 is a cross-sectional view for explaining the overall structure of an incinerator suitable for incinerating the remains of pet animals according to Embodiment 1 of the present invention, and FIG. 2A is a schematic diagram showing the entire structure of Embodiment 1. It is. 1 and 2A, 1 is a primary combustion chamber, 2 is a secondary combustion chamber for treating unburned gas and smoke from the primary combustion chamber 1, and 3 is heat from the secondary combustion chamber 2. It is a gas cooling tower (ejector chimney) for processing and discharging gas and the like.

  In the first embodiment, as shown in FIG. 1, an air intake 3 a for taking in air from the outside is provided in the vicinity of the boundary between the gas cooling tower (ejector chimney) 3 and the secondary combustion chamber 2. Is provided. In the first embodiment, the atmosphere from the outside is taken in by the atmosphere intake 3a, and the hot gas from the secondary combustion chamber 2 is taken into the gas cooling tower (ejector chimney) 3 by the atmosphere from the outside. During the passage, the temperature is lowered to about 200 ° C.

  In the first embodiment, as shown in FIG. 2A, the primary combustion chamber 1 has a door 4 and a movable moving hearth 5 that can enter and exit the primary combustion chamber 1 from the door. (In the first embodiment, the hearth on which the body is placed is a mobile hearth 5 that makes it easy to place the body and pick up bones). The primary combustion chamber 1 includes a main burner 6 that emits flame in the longitudinal direction of the animal's body, and a secondary burner 7 that emits flame in a direction substantially perpendicular to the flame emission direction of the main burner. Is provided.

  In the first embodiment, as shown in FIG. 2B, the main burner 6 has a center line (in the longitudinal direction of the moving hearth 5) passing through the center in the width direction (direction perpendicular to the longitudinal direction) of the moving hearth 5. It is installed so that it may oppose the line eccentrically located in any one edge part rather than the said center line. The reason for this is that, as shown in FIG. 3, when the center of the longitudinal direction of the body of a relatively large animal such as a large dog is placed on the moving hearth 5, It is a line extending in the longitudinal direction of the hearth 5 so as to be positioned on a line (a line indicated by a one-dot chain line B in FIG. 3) that is eccentric and parallel to the line A) that bisects the moving hearth 5 become. Therefore, it is reasonable to make the flame from the main burner 6 radiate along this line B. Therefore, in the first embodiment, the main burner 6 is not the center line A in FIG. 3 but a line B eccentric from the center line A (this line B is, for example, approximately from one end of the moving hearth 5 in the width direction). It is installed at a position facing (1/3 position).

  That is, in the first embodiment, the main burner 6 is eccentrically arranged in the primary combustion chamber 1 having an extra large floor area (W900 mm × L1200 mm) that can be used for cremation of a super large dog. The auxiliary burner 7 is arranged so as to emit a flame that crosses the flame. The two burners 6 and 7 were arranged in the primary combustion chamber 1 so that the whole body of the animal was covered with a flame. That is, in order to suppress the generation of dioxin, incomplete combustion must not be caused partially, and temperature unevenness or an air shortage region should not be created in the primary combustion chamber 1. Therefore, in the first embodiment, in order to eliminate the temperature unevenness in the primary combustion chamber 1, a total of two burners of the main burner 6 and the auxiliary burner 7 are used to prevent the occurrence of combustion dead space. Yes. That is, since it is extremely difficult to place the torso of the large pet dog on the center line, the main burner 6 is installed to be shifted from the center of the primary combustion chamber assuming the position of the torso of the large dog. In the case of the primary combustion chamber, the main burner 6 is installed at a position about 1/3 of the width from one end of the moving hearth 5. The auxiliary burner 7 covers about one third of the longitudinal rear side of the moving hearth 5 that tends to become a dead zone, and is located on the opposite side of the main burner 6 to the rear side of the moving hearth 5 in the longitudinal direction. It is installed at 1/4 position.

  Further, in FIG. 3, only the flame from the main burner 6 does not burn or delays the portion indicated by the broken line C in FIG. Therefore, in the first embodiment, the auxiliary burner 7 is provided at a position facing the farthest portion C. This secondary burner 7 is installed so as to radiate the flame in a direction substantially orthogonal to the direction of the flame from the main burner 6 in order to compensate for the heat shortage of the flame from the main burner 6 most efficiently. Has been.

  Next, the secondary combustion chamber 2 will be described with reference to FIGS. 2A, 2B, 4, and 5. FIG. The secondary combustion chamber 2 is installed in the upper part of the primary combustion chamber 1 via a communication pipe 9. FIG. 5 is a diagram showing the positional relationship between the primary combustion chamber 1 and the secondary combustion chamber 2. The secondary combustion chamber 2 is disposed above the upper left of FIG. 5 showing a plan view of the primary combustion chamber 1. That is, in the first embodiment, as shown in FIGS. 2A and 5, the secondary combustion chamber 2 is installed in the upper part of the primary combustion chamber 1, and the gas outlet from the primary combustion chamber 1 is the longitudinal length of the primary combustion chamber 1. By making the main burner 6 closer to the center of the direction and the gas inlet to the secondary combustion chamber 2 being closer to the smoke-extinguishing burner 10 than the center in the longitudinal direction of the secondary combustion chamber 2, a short gas path can be prevented. Yes.

  In the first embodiment, the secondary combustion chamber 2 is provided with a smoke eliminating burner 10 and a stabilizer 11. The smoke eliminating burner 10 is for heating the secondary combustion chamber 2 and the stabilizer 11. The stabilizer 11 is for accumulating the heat from the smoke-extinguishing burner 10 to radiate high-temperature heat and to generate a vortex flow of high-temperature air. The dilute unburned gas sent from the primary combustion furnace 1 to the secondary combustion chamber 2 is completely burned by the smoke-extinguishing burner 10 and the stabilizer 11, and the production of dioxins is suppressed. .

  That is, in the first embodiment, the secondary combustion chamber 2 includes a smoke-extinguishing burner 10 for guaranteeing temperature (800 ° C. or higher, preferably 850 ° C. or higher on average) and a stabilizer 11 (ceramic porous wall made in the center). In order to achieve uniform mixing and further temperature increase in the secondary combustion chamber 2, the vortex generated in the wake and the role of protection and temperature increase due to heat storage are provided.

  In the first embodiment, due to the above configuration, the total residence time of the gas in the primary combustion chamber 1 and the secondary combustion chamber 2 is 2 seconds or more, so the primary combustion chamber 1 or the secondary combustion chamber. 2 effectively prevents the synthesis of dioxins. That is, dioxin is composed of chlorine ions (contained in salt, vinyl chloride, paint, blood, body fluid, etc.) and organic substances (synthetic resin, paper cloth, protein, fat, carbohydrate, fuel oil, etc.) at a low temperature of about 300-600 ° C. It occurs when burned in an oxygen-deficient state. Therefore, in order not to generate dioxin, it is necessary to secure a residence time of about 2 seconds or more at about 800 ° C. or higher, but Example 1 satisfies this condition.

  That is, in Example 1, in order to prevent a situation where chlorine ions or organic substances are burned at a low temperature of about 300 to 600 ° C. and oxygen is insufficient to generate dioxins, the following measures are taken. In general, when the incinerator is started up, the body is inserted into the primary combustion chamber 1 and the burners 6 and 7 are ignited to prevent the generation of dioxins until the temperature is raised to a predetermined temperature, for example, about 800 ° C. or higher. I don't get it. In the first embodiment, in order to prevent this, the secondary combustion chamber 2 is provided, and before the primary combustion chamber 1 is ignited, the secondary combustion chamber 2 and the stabilizer 11 (walls with openings in which ceramics = bricks are stacked in a lattice shape). In this case, the vortex is generated on the back surface after the collision with the lattice and the passage of the lattice, and the combustion is accelerated and accelerated by this mixing effect). Ignite. Then, if both the main burner 6 and the sub burner 7 of the primary combustion chamber 1 are fully burned and the secondary combustion chamber 2 also continues full combustion, the stabilizer 11 and the furnace body dissipate the heat storage, so that the total temperature is 800 ° C. The above-mentioned condition of retaining for 2 seconds or more can be maintained.

  In addition, when a large-volume object is burned just by providing a burner in the combustion chamber as in the conventional case, a phenomenon in which a flame collides with an object and drifts and the flame does not reach the furnace bottom, that is, dead in the furnace bottom. A zone (a zone that does not reach the flame because it does not reach the temperature due to the exhaust gas containing oxygen not being supplied at a high temperature, especially when the moisture content does not rise at the initial conditions with high moisture content, and oxygen cannot be burned) To do. Therefore, in the first embodiment, the two burners of the main burner 6 and the auxiliary burner 7 are provided, and furthermore, the flame collision as described above can be achieved only by arranging these two burners 6 and 7 in parallel. Since the drift phenomenon could not be eliminated and the effect was not effective, the arrangement of the main burner 6 and the auxiliary burner 7 was made such that the flames at the furnace bottom cross each other. As a result, the dead zone caused by the collision and drift of the flame from the main burner 6 can be supplemented by the flame of the sub-burner (secondary burner) 7 and can be eliminated. The bone after incineration (cremation) (generally called incineration residue or incineration ash) is also said to have dioxin resynthesis during the cooling process, but if it is completely ossified There is no re-synthesis of dioxins (in the absence of organics). Further, the ash deposited in the secondary combustion chamber 2 is also exposed to a high temperature of 800 ° C. or higher for a long time, so that the decomposition of organic substances progresses and becomes harmless.

  Next, the gas cooling tower 3 will be described with reference to FIG. 2A. As described above, in order not to generate dioxins, it is necessary to secure a residence time of about 2 seconds or more at about 800 ° C. or more. However, when the temperature drop from 800 ° C. is slow (slow cooling), Residual organic matter and chlorine gas in the combustion gas are re-synthesized to generate dioxins. In order to prevent the resynthesis of dioxin, it is necessary to rapidly cool to a temperature range in which dioxin is not recombined, that is, 200 ° C. within 1 to 2 seconds. The gas cooling tower 3 of the first embodiment is for this purpose.

  That is, the gas cooling tower 3 in FIG. 2A is provided with an ejector fan 12. The operation of the ejector fan 12 takes in outside air at high speed. The outside air taken in from the ejector fan 12 is supplied to the gas cooling tower 3 as cold air, and the inside of the gas cooling tower 3 is rapidly cooled. Thereby, the situation where dioxin is re-synthesized while the gas sent from the secondary combustion chamber 2 stays at a high temperature in the chimney is prevented. That is, in Example 1, in order to prevent resynthesis of dioxins, the normal chimney is enlarged, and cold outside air (3.5 times the amount of exhaust gas) is used as the air for ejector operation and cooling in the exhaust gas at 850 ° C. Blow and cool to approximately 200 ° C. In addition, as shown with the code | symbol 13 of FIG. 2A, it is also possible to use the method of generating fine mist with the two-fluid nozzle (atomization nozzle) using compressed air and high-pressure water, and blowing this.

  In the first embodiment, in the case of continuous operation in which the next body is cremation after cremation of a certain body, the ejector fan 12 is driven at a high speed immediately after the previous cremation is completed. The generated residual gas (gas that emits a strange odor) is discharged to the outside, and the primary combustion chamber 1 and the secondary combustion chamber 2 are rapidly cooled to immediately move to the next cremation (conventionally) It was difficult to move on to the next cremation immediately (within a short time) due to the presence of residual gas and residual heat).

  In the first embodiment, refractory dams are provided on four sides of the outer periphery of the moving hearth 5. This dam is intended to prevent fat and body fluid from the burned body from flowing down from the moving hearth 5. That is, in the first embodiment, dams made of refractory and having a height of, for example, 600 to 900 mm and a width of, for example, 1000 to 1200 mm are provided on the four sides around the moving hearth 5. The body fluid and fat from the corpse were prevented from overflowing from the moving hearth 5.

  Moreover, in the present Example 1, the uneven | corrugated | grooved part made from a refractory is provided in the whole upper surface of the moving hearth 5. This uneven part is for accelerating the combustion of the lower part of a dead body by supplying oxygen and a hot gas also to the lower part of the dead body of an animal. That is, in Example 1, as countermeasures against oxygen deficiency and heat deficiency in the lower part of the body, for example, parallel bricks are arranged with a gap of 50 mm, and a gap (unevenness) of about 50 mm is provided from the regular floor surface. A gap through which hot gas and oxygen flow is formed to ensure the incineration speed at the bottom of the body. That is, in the horizontal moving hearth system for the purpose of facilitating the insertion of the animal body into the cremation furnace and the recovery of the bone, in order to promote the combustion of the lower part of the body that is most incinerated, the height of the refractory 30 to A 100 mm protrusion (uneven portion) is provided to enable supply of hot gas and oxygen between the lower part of the body and the hearth.

  Moreover, in the present Example 1, as shown in FIG. 6, the small animal area 14 for mounting the bodies of small animals, such as a guinea pig, is provided in a part of upper surface of the said movable hearth 5. The small animal area 14 is installed in a place where the flames from the main burner 6 and the auxiliary burner 7 do not directly hit. Fireproof plates made of refractory are provided on the four sides around the small animal area 14. This flame-proof board is installed by being pinched | interposed into the recessed part of the said uneven part made from a refractory. In small animals such as guinea pigs, when the flames from the main burner 6 and the sub-burner 7 are directly applied, the remains are scattered by the force of the flame. Therefore, in the first embodiment, a small animal body is placed in the small animal area 14 as described above and burned. By doing so, the inconvenience that the remains of small animals are scattered and cannot be recovered can be avoided. That is, in the present Example 1, the small animal area 14 as a zone not directly hit by any of the flames from the two burners was provided as a measure against bone scattering of the micro animal. The small animal area 14 was surrounded by inserting a refractory plate (height 100 to 200 mm) into the concavo-convex portion. In this way, a heat insulation wind wall is created to prevent scattering of the remains of ultra-small animals. That is, in Example 1, a 200-300 mm square enclosure is made between the irregularities provided on the hearth by means of a refractory plate so that the flame does not hit directly, thereby scattering fine bones such as toothpicks. It makes it possible to collect.

  Moreover, in the present Example 1, the uneven | corrugated | grooved part of the upper surface of the said movable hearth 5 is spread | laid with the thickness of several mm of sand (silica sand) with a particle diameter of 2-5 mm. As described above, a large amount of fat or body fluid flows out from the body placed on the moving hearth 5 and accumulates in the concave portion of the uneven portion. The accumulated fat and body fluids do not vaporize or burn as they are. Therefore, in the present Example 1, the silica sand as described above is spread over the concavo-convex portion, so that the silica sand plays the same role as the “core of the candle”, and the fat and body fluid are heated and vaporized. Yes. That is, the fat and body fluid accumulated in the uneven portion rises through the silica sand and is heated and vaporized on the silica sand. In addition, you may use the particle | grains which consist of another material instead of the said silica sand. As described above, in the first embodiment, in order to promote the burning of fat accumulated on the hearth surface surrounded by the dam and the evaporation of the body fluid, the angulated sand having a diameter of 2 to 5 mm is formed in the concave portion of the concave and convex portion. The sand is made to play the role of a wick (the fat is vaporized and burned).

  Next, FIG. 7 is a diagram showing another embodiment 2 of the present invention. In the second embodiment, the primary combustion chamber 21 provided with the main burner and the auxiliary burner, the secondary combustion chamber 22 provided with the smoke eliminating / deodorizing burner, and the gas cooling tower 23 are provided. These are the same as in the first embodiment (the basic configuration is the same as that in the first embodiment, and the details are omitted). The right portion of the gas cooling tower 23 shown in the figure (the left portion of the stabilizer shown in the figure) is heated by the heat accumulated in the stabilizer (for a countermeasure against dioxins such as “residence at a high temperature of 800 ° C. or higher for 2 seconds or longer”). Therefore, in FIG. 7, “tertiary combustion chamber” is displayed. Also in the second embodiment, substantially the same effect as the first embodiment can be achieved. In particular, in Example 2, since it is a forced exhaust system, even a beginner can use it safely, and the cooling from 300 ° C. is particularly fast. Moreover, since there is no hot air blowing out, it is safe and there is no damage to the furnace body. In addition, since a ceramic stabilizer is installed in the secondary combustion chamber 22, smoke removal and deodorization are thorough. Moreover, in the gas cooling tower 23, since cold air mixing for rapid gas cooling (generally quenching to approximately 200 ° C.) is also performed, the generation of dioxins is greatly suppressed (according to the Ordinance of the Ministry of Health and Welfare, “ By securing a residence time of 2 seconds and then rapidly cooling to approximately 200 ° C., the generation of dioxins can be suppressed.) Therefore, in this Example 2, since the official regulations concerning dioxins can be almost cleared, the use is restricted. There is no fear of being done.

  As described above, Embodiments 1 and 2 of the present invention have been described. However, the present invention is only for cremation of pet animals (pets) because dioxin countermeasures are sufficient and the temperature is rapidly raised to 800 ° C. In addition, it can be applied to incineration of small animals for animal experiments such as guinea pigs, and incineration of small-volume infectious medical waste.

It is sectional drawing which shows the whole structure of Example 1 of this invention. BRIEF DESCRIPTION OF THE DRAWINGS FIG. It is the schematic for demonstrating the structure of the present Example 1. FIG. It is a figure for demonstrating arrangement | positioning of the main burner of the present Example 1. FIG. It is the schematic for demonstrating the present Example 1. FIG. It is a figure which shows the positional relationship of the primary combustion chamber of this Example 1, and a secondary combustion chamber. It is a figure for demonstrating the small animal area of the present Example 1. FIG. It is the schematic which shows the whole Example 2 of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1,21 Primary combustion chamber 2,22 Secondary combustion chamber 3,23 Gas cooling tower 3a Atmospheric intake 4 Door 5 Moving hearth 6 Main burner 7 Sub burner 10 Smoke burner 11 Stabilizer 12 Ejector fan 13 Atomization nozzle 14 Small animal area

Claims (10)

In an incinerator suitable for incinerating the bodies of pet animals,
A primary combustion chamber with a burner for burning incinerators such as animal bodies,
A secondary combustion chamber provided above the primary combustion chamber for completely burning unburned gas sent from the primary combustion chamber, and accumulates heat to generate radiant heat and hot air vortex And a smoke-extinguishing burner for heating the secondary combustion chamber and the stabilizer, and suppressing the production of dioxins by completely burning the unburned gas sent from the primary combustion chamber A secondary combustion chamber for,
A gas cooling tower provided on the discharge side of the secondary combustion chamber, for discharging gas from the secondary combustion chamber;
An air intake port provided in the middle of a passage for guiding the hot gas from the secondary combustion chamber to the gas cooling tower, and an air intake for taking in the air for reducing the temperature of the hot gas from the outside;
An incinerator suitable for incinerating the bodies of pets, etc. In claim 1,
The gas cooling tower incinerates the body of a pet animal, etc., wherein the temperature of the gas passing through the gas cooling tower is lowered to about 200 ° C. by the atmosphere from the atmosphere intake port. Incinerator suitable for. In claim 1 or 2,
The primary combustion chamber is
A main burner that emits flames from the direction of the head or butt to the buttock or head toward the body of a companion animal placed on a movable moving hearth. When the corpse lies on the hearth, it is arranged so as to face the central axis in the longitudinal direction of the corpse, that is, to face the position eccentric from the longitudinal center line of the moving hearth. The main burner,
A sub-burner for compensating for heat shortage at the farthest part of the main burner, the sub-burner emitting a flame in a direction substantially perpendicular to the flame from the main burner;
An incinerator suitable for incinerating the remains of pet animals characterized by having In claim 1, 2 or 3,
The gas cooling tower includes an ejector fan for taking in outside air at high speed. The air from the ejector fan takes in the heated air from the stabilizer, and the taken-in heated air is about 200 ° C. The body of a companion animal, etc., characterized in that dioxin is prevented from being re-synthesized by the gas sent from the secondary combustion chamber. Incinerator suitable for incineration. In claim 1, 2 or 3,
A refractory dam provided around the moving hearth, the dam for preventing fat from animal bodies on the moving hearth from flowing out of the moving hearth;
An incinerator suitable for incinerating the remains of pet animals characterized by having In claim 1, 2 or 3,
A refractory concavo-convex portion provided on an upper surface of the moving hearth, for securing a ventilation space for supplying oxygen and hot gas to a lower part of an animal body placed on the moving hearth Uneven part,
An incinerator suitable for incinerating the remains of pet animals characterized by having In claim 6,
Angular sand or sand-like particles having a particle diameter of about 2 to 5 mm spread in the concave portion of the concave-convex portion on the upper surface of the moving hearth, such as fat accumulated in the concave portion flowing out from the body Particles for directing the oil content of the oil to burn in the furnace,
An incinerator suitable for incinerating the remains of pet animals characterized by having In claim 1, 2, 3 or 6,
An area for placing small animals provided on the upper surface of the moving hearth, provided in a place where the flame from the main burner and the auxiliary burner does not directly hit, and provided with a flameproof plate made of a refractory around the area. A small animal placement area that can prevent the remains of small animals from being scattered by the flame from the burner,
An incinerator suitable for incinerating the remains of pet animals characterized by having In claim 4,
The gas cooling tower discharges residual gas generated during the previous cremation process at a high speed when moving from one cremation process to the next cremation process, and is heated during the previous cremation process. An incinerator suitable for incinerating the remains of pet animals, which is equipped with an ejector fan that cools the room to room temperature at high speed. In an incineration method using an incinerator suitable for incinerating the body of a pet animal according to claim 1,
Prior to igniting the primary combustion chamber, raising the temperature of the secondary combustion chamber in advance to a temperature of 800 ° C. or higher that can prevent the generation of dioxins; and
A step of igniting the primary combustion chamber after the temperature of the secondary combustion chamber is raised to 800 ° C. or higher, and incinerating an object to be incinerated such as an animal body;
An incineration method comprising preventing generation of dioxins at the time of starting up the primary combustion chamber.

Images