JPH02275210A - Incinerator - Google Patents

Abstract

PURPOSE:To incinerate properly such waste as generates intense heat by combustion and efficiently moist waste as well by comprising a cooled air circulating chamber which circulates cooled air on the sides of a furnace body which comprises a cooling water circulation chamber which circulates cooling water on an outside periphery including a bottom and installing a combustion chamber inside. CONSTITUTION:An attempt is made to ignite auxiliary burner 16, to operate a motor driven fan 27, and to heat synthetic resin cast on the upper surface of a fire grate 32. A part of the resin is melted and drops into a saucer 30 through a clearance of a fire grating plate 33 and collected therein. A bulkhead plate 9 hot heated by this combustion is cooled by cooling water which circulates inside a cooled air circulation chamber 11. This cooling air is cooled by the cooling water which flows in from a cooling water intake port 4a and circulates inside a cooling water circulation chamber 4. The outside surface of a furnace body 1 and a combustion chamber 10 are heat-insulated by the cooling air circulation chamber 11 and the cooling water circulation chamber 4 so that the heat may hardly be transferred to the outer periphery of the furnace body 1. The synthetic resin under a molten state collected on the saucer 30 is further burnt by the heated saucer 30 and an auxiliary burner 16.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an incinerator suitable for incinerating synthetic resins such as plastic bags and pieces of plastic, and miscellaneous waste with a high moisture content such as raw garbage, and an incinerator that is particularly effective for ships. Regarding.

Conventional technology Traditionally, incinerators for incinerating common waste such as paper and cloth were
It was constructed of laminated heat-resistant bricks and was equipped with an internal roaster and auxiliary burner.

Problems to be Solved by the Invention However, conventional brick incinerators are not only heavy and unsuitable especially for use in ships, but also incinerated by the combustion of synthetic resin waste such as plastics and plastic bags. When incinerating waste that is easily damaged by high heat and lacks durability, and has a high moisture content such as food waste, the temperature of the solids does not rise until the moisture has evaporated, reducing combustion efficiency. There were some inconveniences such as bad things. Therefore, the present application provides an incinerator that is suitable for incinerating waste that generates high heat when burned, and that can also efficiently incinerate waste that has a high moisture content, and in particular provides an incinerator that is suitable for being installed on a ship. It is something.

Means for Solving the Problems In order to improve the disadvantages of the above-mentioned known devices, the present application provides a cooling device that has a waste input port that is closed by a lid member on the top surface and that allows cooling water to flow around the outer periphery including the bottom. Cooling and air flow 1111 to the inner surface of the furnace body forming a water circulation chamber.
A cooling air circulation chamber is formed, a combustion chamber is provided therein, a combustion means is provided inside the combustion chamber, and the furnace body is provided with an inlet/outlet passing through each of the circulation chambers, which is closed to the combustion chamber by a door member, and a cooling air circulation chamber. A cooling water intake and a cooling water outlet communicating with the water circulation chamber, an outside air intake communicating with the cooling air circulation chamber, an air outlet communicating directly or indirectly with the combustion chamber, and communicating with the lower part of the combustion chamber. The present invention provides an incinerator characterized by having a combustion gas exhaust port connected to an exhaust duct having an exhaust blower. A saucer member having a plurality of fins arranged side by side placed on the bottom surface, a rostle having an extending portion disposed on the surface of the saucer member below a plurality of parallel grate plates, and a rostle. The door member is formed into a hollow shape, and an air inlet communicating with the cooling air outlet and an air outlet are respectively formed in the door member. The exhaust gas from the forced exhaust duct is supplied to the upper part of the combustion chamber via a return pipe.

In use, the lid member of the input port is opened to introduce waste into the combustion chamber, and the blower is operated to burn the input using, for example, an auxiliary combustion burner. Then, the furnace body is cooled by the cooling air that is forced to flow through the outside air intake, the cooling air distribution chamber, the air outlet, the lower part of the combustion chamber, and the combustion gas exhaust port, and further, this cooling air is
The cooling water flowing in the cooling water flow chamber cools the combustion chamber, and therefore the high heat generated in the combustion chamber is thermally isolated by the cooling air flow chamber and the cooling water flow chamber between the outer surface of the furnace body and the combustion chamber, and the furnace body is cooled. Very little heat is transferred into the outer surface of the Further, as the disposal blower operates, combustion gas under combustion pressure is discharged to the outside air from the combustion gas outlet through the exhaust duct. In the above, the combustion means includes a saucer member in which a plurality of fins are arranged in parallel on the lower surface of the tray portion and placed on the inner bottom surface of the furnace body;
It consists of a rostrum extending below a plurality of parallel grate plates and an extension portion that extends onto the surface of the saucer member, and an auxiliary combustion banner arranged so as to be oriented in the direction of the rostrum, and When the door member is formed into a hollow shape and has an air inlet and an air outlet communicating with the cooling air outlet, it is possible to dispose of, for example, synthetic resin or food waste thrown into the combustion chamber. If an object falls onto the top of the roaster and is placed on the grate of the grate plate, and the liquid content of the garbage is
It flows into the tray part of the saucer member. In this state, the synthetic resin is heated and combusted by the auxiliary combustion burner. Then, the solid content of the synthetic resin or garbage burns at a high temperature, and a part of it melts and falls through the gap between the grate plates of the roaster into the tray of the saucer member and accumulates therein. The heat of the rostle, which is directly heated by the high heat of combustion, is transmitted to the pan of the saucer member through the grate plate and heats the pan, so that the liquid that has fallen into the pan and accumulated is further removed from the pan. Combustion is performed by heating with the auxiliary combustion burner and heating with the auxiliary burner. On the other hand, due to the negative pressure generated at the bottom of the combustion chamber by the operation of the exhaust blower, the high-temperature gas above the rooster goes around to the bottom of the pan of the receiving tray member, and is also circulated directly or indirectly into the combustion chamber from the cooling air distribution chamber. Then, it mixes with the cooling air guided to the bottom, and this mixed air flows through the gaps between the fins of the saucer member.
The fins, which are cooled by contacting the cooling water flow chamber at the bottom of the furnace body, remove heat from the mixed air to prevent heat drop in the pan. Additionally, when the exhaust air from the forced exhaust duct is supplied to the upper part of the combustion chamber via the return pipe, a portion of the exhaust from the exhaust duct flows into the upper part of the combustion chamber via the return pipe, and the temperature inside the combustion chamber decreases due to cooling. Combustion efficiency is improved by preventing temperature drop.

Embodiment Examples The embodiments of the present application will be described in detail with reference to the drawings below. Figure 1 shows a longitudinal cross-sectional view of the incinerator of the present application, and (1) shows the furnace body forming the incinerator of the present application having a rectangular planar shape with an open top surface. , the furnace body (1
), the entire outer periphery excluding the top surface is the outer casing (2) and the inner cylinder (3).
), and a cooling water intake port (4) a connected to the cooling water supply pipe (5) is formed at the lower rear surface of the outer casing (2). A cooling water outlet (4)b connected to a cooling water discharge pipe (6) is provided at the upper rear surface.

The rear part of the upper surface of the furnace body (1) is closed by a closure plate (1)b, and after this closure, a waste inlet (7) is formed in the front part of the closure plate (1)b. The rear edge of a lid member (8) that closes the waste inlet (7) is hinged to the front edge of the plate (1)b so as to be openable and closable. (9) is a partition plate facing the inner circumferential side surface of the inner cylinder body (3) with a small distance therebetween to form a cooling airflow chamber (11) and a combustion chamber (10) therein. A cooling water flow chamber (4) and a cooling air circulation chamber (11) are provided at the lower front of the furnace body (1).
An entrance/exit (12) for taking out a saucer member (28) and a roaster (32), which will be described later, is opened opposite the combustion chamber (10). (13) indicates a waste guide member provided below the waste input port (7), and the waste guide member (13) has a square cross section and a funnel shape. The upper edge is the cooling air circulation chamber (11)
The cooling air circulation chamber (11) is integrally fixed and supported on the upper inner peripheral surface of the inner cylindrical body (3) so as to close the upper surface.
is an outside air intake port (3) that penetrates the cooling water flow chamber (4) at a rear position of the furnace body (1) and opens on the outer surface of the outer casing (2).
) a to the atmosphere, and the inlet/outlet (12
) is open on the left and right sides and on the top. The partition plate (9
) is formed with a firing port (15) that bulges rearward and opens at the rear of the combustion chamber (10).
15) faces a nozzle tip of an auxiliary combustion burner (16) directed toward a grate plate (33), which will be described later, and the outer periphery of this nozzle tip is sealed, and at the lower rear surface of the furnace body (1), A combustion gas outlet (17) is provided which passes through the furnace body (1) and communicates with the combustion chamber (10). This combustion gas exhaust port (17) is connected to the intake port (20) of the exhaust fan (19) via the combustion gas exhaust duct (18), and the exhaust port (20) of the exhaust fan (19) 19)a is connected to the exhaust duct (21), and a part of the exhaust gas passes through the sealing plate (1)a and passes through the return pipe (22) that opens at the top of the furnace body (1) to the combustion chamber ( 10) Guided within. (23) indicates a door member made of a flat hollow casing that tightly fits into and seals the doorway (12), and the door member (23) is attached to the outer surface of the body (1) so as to be openable and closable. Also, an inner plate (23) flush with the partition plate (9).
An air outlet (24) is provided at the lower part of a, and a circumferential side plate (24) facing the air supply hole (14) of the cooling airflow chamber (11) is provided.
23) Air inlet ports (25) are opened at b.

(26) shows an electromagnetic fuel pump that supplies fuel to the auxiliary burner (16), (27) shows an electric blower that supplies combustion air to the auxiliary burner (16), and (2)
Reference numeral 8) indicates a saucer member that is positioned by a positioning piece (29) provided on the upper surface of the inner bottom plate of the furnace body (1) and is removably installed in the combustion chamber (lO); ), as shown in FIG. 3(b), consists of a rectangular dish portion (30) with a number of vertical fins (31) extending in the front-rear direction and spaced apart from each other in the left-right direction on the lower surface of the rectangular dish portion (30). (32) shows a roaster placed on the tray part (30) of the saucer member (28), and the roaster (32) has a horizontally extending grate part ( A grate plate (33) consisting of a plurality of vertical plates with a fire weir part (35) integrally erected in an L-shape is installed at the front part of the grate part (34) at a distance in the left and right direction, and the grate part (34) The front end of the fire dam part (35), the upper end of the fire dam part (35), and the upper surface of the middle part of the fire grate part (34) are each integrally connected by a connecting plate (36), and the top end of the fire dam part (35) The connecting plates (36)a to be connected are inclined backward downward, and the grate portions (34) of the intermediate position of the grate plates (33)b, excluding the grate plates (33)a at both left and right ends, are tilted further downward. The lower edges of the extending portions (37) abut against the upper surface of the dish portion (30). (38) is the opening and lever of the lid member (8).

Therefore, when using the lid member (8) of the inlet (7),
) and then, for example, synthetic resin is added. Then, the synthetic resin is guided to the waste guide member (13) and is guided to the waste guide member (3).
2) and the grate part (3) of the grate plate (33)
4) The fire pan (35) placed on top prevents the thrown waste from falling toward the door member (23). In this state, the auxiliary burner (16) is ignited, and the electric blower a (27) is operated to supply combustion air to the auxiliary burner (16) to heat and burn the synthetic resin. Then, the synthetic resin burns at high temperatures, and a portion of it melts and falls through the gap between the grate plates (33) of the rostre (32) into the pan (30) of the saucer member (28) and accumulates there. . The high heat caused by the combustion of this synthetic resin heats the partition plate (9), but the partition plate (9)
11), through the cooling air supply hole (14), an air inlet (25) and an air outlet (24) opposite to this, and is led to the combustion gas outlet (17) through the lower part of the combustion chamber (10). The cooling air flows through the cooling water intake port (4)a and flows into the cooling water distribution chamber (4).
4) The partition wall plate (9) is cooled to within the heat resistance limit by the cooling water flowing inside, and the outer surface of the furnace body (1) and the baking chamber (10) are connected to the cooling air circulation chamber (11). The heat is isolated by the cooling water distribution chamber (4) and most of the heat is transferred to the outer peripheral surface of the furnace body (1), and the heat of the rostol (32) heated to a high temperature by the combustion of the synthetic resin material is Grate plate (
33) to the dish part (30) of the saucer member (28) and heats the dish part (30), the melted synthetic resin accumulated in the dish part (30) is further ) and heating by the auxiliary combustion burner (16). On the other hand, due to the operation of the exhaust blower (19), the high temperature gas above the roostle (32) is forced to pass through the gap in the fire pan (35) of the roostle (32) due to the negative pressure generated at the bottom of the combustion chamber (10). The saucer part (3) of the saucer member (28)
0), and the cooling air supply hole (14
) The air flows in from the air inlet (25) facing the door member (
23) From the air outlet (24) through the combustion chamber (10)
This mixed air flows through the gaps between the fins (31) of the saucer member (28), so it comes into contact with the cooling water flow chamber (4) at the bottom of the furnace body (1) and is cooled. The fins (31) removed from the mixed air prevent heat drop in the pan (30), and the mixed air that has exchanged heat with the fins (31) is transferred to the combustion gas outlet (1).
The combustion gas is sucked in from the combustion gas exhaust blower (19) through the exhaust duct (1B) and exhausted to the atmosphere through the exhaust duct (21), and a part of the exhaust gas is returned to the exhaust pipe (22
) into the upper part of the combustion chamber (10) and flows into the upper part of the combustion chamber (10) through the
0) is prevented from decreasing due to cooling, thus improving combustion efficiency. After the combustion of the waste is completed in this way, the operation of the electric blower (27) is stopped, and the door member (23) is opened to allow the saucer member (28) and the rostol ( 32) and clean them and the inside of the furnace.

Furthermore, when food waste is thrown in through the waste input port (7), the food waste is guided to the waste guide member (13) and is guided to the waste guide member (13).
2) The solid content is placed on the grate part (34) of the grate plate (33), and the liquid content is placed on the grate part (34) of the grate plate (33).
) falls into the tray part (30) of the saucer member (28) and collects therein, and as in the case of the synthetic resin waste mentioned above, the solid content of the garbage on the grate plate (33) is transferred to the auxiliary combustion burner. (1
6), and the liquid content of the garbage that falls and accumulates in the dish part (30) is evaporated by heating by the extension part (37) and heating by the auxiliary burner (16). .

Effects of the Invention As described above, according to the present application, since the furnace body forming the incinerator is constituted by the cooling air circulation chamber and the cooling water circulation chamber, it is excellent in heat insulation and the equipment can be made lighter. The combustion means is located on the inner bottom surface of the furnace body on the lower surface of the dish portion. A saucer member in which a plurality of fins are placed in parallel, a rostre with an extending portion extending below a plurality of parallel grate plates and placed on the surface of the saucer member, and a rostol oriented in the direction of the rostre. and an auxiliary combustion burner arranged so that the door member is hollow, and an air inlet communicating with the cooling air outlet and an air outlet are respectively formed in the door member. The solid content and the liquid content are separated, and the solid content is directly heated by an auxiliary combustion burner, and the liquid content is heated and combusted by the pan of the saucer member heated by the grate, so combustion efficiency is extremely high. Therefore, it is extremely effective for incinerating waste such as synthetic resins and food waste containing a large amount of water.
When supplied to the upper part of the combustion chamber through the return pipe, there are advantages such as being able to prevent the temperature inside the combustion chamber from decreasing due to cooling and further improving combustion efficiency.

[Brief explanation of drawings]

The drawings show an embodiment of the present application, and FIG. 1 is a longitudinal sectional view, FIG. 2 is another longitudinal sectional view, FIG. It is a diagram. In the figure, (1) is the furnace body, (3) a is the outside air intake, (4) is the cooling water flow chamber, (4) a is the cooling water intake, (4) b is the cooling water outlet, (7) is the waste input port, (8) is the lid member, (
10) is P, baking chamber, (11) is cooling air flow chamber, (12)
(16) is the auxiliary combustion burner, (17) is the combustion gas outlet, (19) is the exhaust blower, (21) is the exhaust duct, (22) is the return pipe, (23) is the door member, (2
4) is an air outlet, (25) is an air inlet, (30) is a dish part, (31) is a fin, (32) is a rostle, (33)
) is a grate plate, (34) is a grate portion, and (37) is an extension portion. Patent applicant: Goko Seisakusho Co., Ltd. Figure 1 Figure 2

Claims (4)

[Claims] (1) Cooling in which cooling air is circulated through the inner surface of the furnace body, which has a waste inlet closed by a lid member on the top surface and a cooling water circulation chamber in which cooling water flows around the outer periphery including the bottom. An air circulation chamber is formed and a combustion chamber is provided therein, and a combustion means is provided inside the combustion chamber, and the furnace body includes an inlet/outlet penetrating each of the circulation chambers that is closed by a door member to the combustion chamber, and a cooling water circulation chamber. A cooling water inlet and a cooling water outlet that communicate with the combustion chamber, an outside air intake that communicates with the cooling air circulation chamber, an air outlet that directly or indirectly communicates with the combustion chamber, and an air outlet that communicates with the lower part of the combustion chamber. An incinerator characterized by being provided with a combustion gas exhaust port connected to an exhaust duct having an exhaust blower. (2) The combustion means includes a saucer member having a plurality of fins placed in parallel on the lower surface of the tray portion and placed on the inner bottom surface of the furnace body, and a saucer member arranged below a plurality of parallel grate plates on the surface of the saucer member. The door member is formed into a hollow shape, and a cooling air outlet is provided in the door member. The incinerator according to claim 1, further comprising an air inlet and an air outlet communicating with the incinerator. (3) The incinerator according to claim 1 or 2, wherein the rostle has an extension extending vertically from one end of the grate plate. (4) The incinerator according to any one of claims 1, 2 and 3, wherein the exhaust gas from the forced exhaust duct is supplied to the upper part of the combustion chamber via a return pipe.