JP3105212U - Cremation furnace - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the durability of a portion above an eave portion of a side wall and a combustion efficiency by radiant heat in a main fuel chamber of a cremation furnace.
SOLUTION: The eaves (17) of the refractory block protrude inward from the left and right side walls (16) of a main fuel chamber (3) for cremating a housed carriage (8), and the left and right side edges of the carriage (8). Is covered by an eave portion (17) via a gap (21), and the upper side of the eave portion (17) on the side wall (16) is overlapped with the inner ceramic fiber (20) and the outer refractory block (19). A cremation furnace characterized by having a multilayer structure.
[Selection diagram] Fig. 1

Description

  The present invention relates to a structure of a side wall of a main combustion chamber in a cremation furnace in which a creeper is placed on a trolley with a hearse placed thereon.

  In a trolley-type crematory furnace, it is necessary to move the trolley into and out of the main combustion chamber in the furnace along the rails.Therefore, the plane between the left and right side walls of the main combustion chamber is formed wider than the width of the trolley in plan view. There is a gap between the side of the truck and the side wall. However, when the cremation body on the trolley is burned with a burner, the powdered small pieces of the cremation body are blown away by the momentum and fall from the gap next to the trolley, collect on the floor, and the trolley along the rails It took time to remove the debris after cremation. In addition, heat above the bogie may be convectionally directed downward from a gap beside the bogie, resulting in burning of wheels of the bogie. In order to solve such a problem, a crematory furnace has been developed in which an eave portion protrudes inward from a side wall of the main fuel chamber and the eave portion covers a portion above a side edge of the bogie with a gap (registered practical use). No. 3026843).

  However, in the above-mentioned crematory furnace, the upper side of the eaves on the side wall is formed of a refractory block, but since the main combustion chamber becomes extremely hot, the protection of the refractory block above the eaves is not sufficient. It could not be said, and it became a factor to shorten the durability. Further, at the time of combustion, radiant heat is generated from the refractory block above the eaves portion, but it is hard to say that the improvement in combustion efficiency by the radiant heat is sufficient.

  The present invention has been developed in consideration of the above circumstances, and has as its object to improve the durability of the portion above the eaves of the side wall and the combustion efficiency by radiant heat.

  The present invention is based on the premise that a crematory furnace protrudes inwardly from the left and right side walls of the main combustion chamber in which the trolley is housed while the trolley is housed, and covers the upper side edges of the trolley with the eaves via a gap. I do. The upper side of the eaves on the side wall has a multilayer structure in which the inner ceramic fiber and the outer refractory block overlap.

  According to the present invention, an eaves portion that may be rubbed when a bogie enters and exits the main fuel chamber is formed of a fireproof block, and the hardness of the refractory block prevents the eaves portion from being worn. The upper part of the section has a multi-layer structure in which the inner ceramic fiber and the outer refractory block overlap, so the inner ceramic fiber protects the outer refractory block from combustion heat and increases the radiant heat to increase the combustion efficiency. An improvement is obtained.

  The cremation furnace of the present invention has a furnace body 1 and a burner 2 attached thereto, as shown in FIG. 1 or FIG. The furnace body 1 has a rectangular shape in plan view, and has a main combustion chamber 3 provided at a lower portion and a reburn chamber 4 provided at an upper portion. An entrance 5 provided in the front of the main combustion chamber 3 is provided so as to be openable and closable by a fire door 6, a rail 7 is provided on a floor surface in a front-rear direction, and a cart 8 is provided movably along an extension direction of the rail 7. A hole 10 for a burner is formed in the rear wall 9 of the main combustion chamber 3, and the tip of the burner 2 is housed in the hole 10 so as to swing. A communication path 11 leading to the reburn chamber 4 is provided at the rear of the main combustion chamber 3, and unburned gas generated when cremated by the burner 2 is guided to the reburn chamber 4 via the communication path 11.

  The upper space of the main combustion chamber 3 is a cremation combustion space 12 and the lower space thereof is a bogie accommodation space 13. The upper portion of the combustion space portion 12 is a stagnation space portion 14 for stagnating gas generated during cremation for a long time, and a rear wall of the stagnation space portion 14 and an entrance side of the communication path 11 are partitioned back and forth by a partition wall 15. The bogie accommodation space 13 is formed to have a size that allows the bogie 8 to be taken in and out without touching the left and right side walls 16 of the main fuel chamber 3.

  The side wall 16 protrudes inward from the eave portion 17 at the boundary between the combustion space portion 12 and the bogie accommodating space portion 13, and has a multilayer structure above the eave portion 17 (a portion corresponding to the combustion space portion 12). That is, it is formed in a three-layer structure composed of the outermost refractory insulation block 18, the innermost refractory block 19, and the innermost ceramic fiber 20. The ceramic fiber 20 has a plate shape and is attached to the refractory block 19 with an adhesive.

  The eaves portion 17 is a fire-resistant block, the inner surface of which is an inclined surface, and the inclined state is such that it gradually projects inward from top to bottom. Further, the upper end of the eave portion 17 is formed flush with the ceramic fiber 20 immediately above, and a slight gap 21 is provided between the bottom surface of the eave portion 17 and the upper surface of the right and left side edges of the carriage 8. Note that a heat-insulating fire-resistant block, which is a part of the side wall 16, is provided outside the eave portion 17.

  The ceiling of the main combustion chamber 3 also has a multi-layer structure in which ceramic fibers 23 are provided inside the fireproof block 22 (the lower side in the figure), similarly to the side wall 16.

It is principal part sectional drawing which looks at the cremation furnace of this invention from the front. It is a principal part sectional view which looks at the cremation furnace of this invention from the side.

Explanation of reference numerals

3 Main Combustion Chamber 8 Bogie 16 Side Wall 17 Eaves 19 Fireproof Block 20 Ceramic Fiber 21 Gap

Claims (1)

  The eaves (17) of the refractory block protrude inward from the left and right side walls (16) of the main combustion chamber (3) in which the trolley (8) is housed while the trolley (8) is stored, and a gap is formed above the left and right side edges of the trolley (8). It is covered with the eaves (17) through (21), and the upper side of the eaves (17) on the side wall (16) is formed into a multilayer structure in which the inner ceramic fiber (20) and the outer refractory block (19) overlap. A cremation furnace characterized by the fact that:

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