JPS6324636B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a trolley for a charcoal kiln, and its purpose is to promote charcoalization of charcoal and improve yield.

Traditionally, when producing charcoal, raw material wood is loaded upright onto a cart and transported into a carbonization furnace, or if a cart is not used, it is directly packed upright into a carbonization furnace and sintered. Ta.

After carrying the raw material wood on the cart into the carbonization furnace, the entrance and exit holes are closed and the raw material wood is ignited.The temperature inside the furnace gradually rises and eventually reaches a predetermined temperature, where it is fired and carbonized.

In that case, the moisture on the surface of the raw wood flows down, and the moisture inside the wood travels through the wood conduit.
As the temperature rises from the cut, some of the water is vaporized and some of it is heated and flows out.

If the temperature inside the furnace is low after ignition, dew will condense and the wood in contact with the front of the cart will get wet, so even if other parts have already finished carbonizing, the moisture in the part in contact with the cart will Since a larger amount of heat is required for evaporation, it remains only partially carbonized.
Therefore, if more time is taken, the already carbonized portion will be turned into ashes, and the overall yield will naturally deteriorate.

Also, if logs, etc. are used as raw materials at the same time,
The bark on the surface of the log sheds due to the heat, and some of it falls onto the trolley, blocking the inflow of air and hot air, causing a delay in carbonization in that area.

These inconveniences are caused by the fact that the loading surface of conventional trolleys is horizontal and no improvements have been made.

The present invention was conceived in view of this point,
To provide a trolley that quickly drains water without accumulating water as in the past, allows air and hot flames to circulate easily, and produces uniformly high-quality charcoal.

That is, the charcoal kiln trolley of the present invention has a protective layer of refractory bricks or refractory cement in the form of a bent plate having a high central portion and sloped downward on both sides as a floor surface;
A trolley having a pedestal to which water collection plates are attached at appropriate intervals on the lower side, and the surface of the protective layer extends from the bending ridgeline in the center to the sloping lower edge on both sides. A plurality of grooves are formed, each of which has a vertical through hole at an appropriate position that opens into the space below the protective layer.

Embodiments of the present invention will be described below based on the drawings.

The trolley 1 of the present invention is for loading raw material wood in an upright position and carrying it into the carbonization furnace 2, and a pedestal 3 is provided on the floor of the trolley 1.

As shown in FIG. 1B, the frame 3 has a high central portion and is sloped to both sides, and a fire-resistant protective layer 4 of an appropriate thickness made of fire-resistant bricks or fire-resistant cement is provided on the slope. .

This protective layer 4 has a plurality of grooves 5 extending from the center to both sides, and a vertical through hole 6 is bored at an appropriate position in each groove to communicate with a duct 7 under the frame. .

In addition, on the surface of the protective layer 4, in order to facilitate air circulation on the lower end surface of the wood and around the hot flame,
A small groove 5' intersecting with the inclined groove 5 is formed over the entire surface.

When producing charcoal using the trolley of the present invention, the trolley carried into the furnace as described above is fixed with wheel stops, the large door 8 is closed to seal the furnace, and the ignition air hole 9 is Ignite the raw materials. When the temperature inside the furnace gradually increases from the start of ignition, moisture flows out from the surface and inside of the wood, flows down to the surface of the protective layer, flows through the groove 5, and flows from the through hole 6 to the lower space, that is, the duct 7. The water drips through the lower water collecting plate 10, flows into the drain holes 11 of the hearth on both sides of the truck 1, passes through the traps 12, and is drained out of the furnace.

On the other hand, the necessary air supplied from the ventilation hole 13 of the large door flows into the furnace through the duct 7 in the space formed by the water collection plate 10 and the protective layer 4, and the plurality of grooves provided in the grooves 5 of the protective layer 4 The charcoal material is uniformly distributed through the gaps between the upright stacked charcoal materials through the through holes 6. Therefore, calcination carbonization is performed smoothly.

In particular, water flowing out from the raw materials and condensation water quickly passes through each part and flows out without stagnation in the furnace. This removes the latent heat of vaporization and eliminates the amount of heat released from the smoke flue 14 to the outside of the furnace, thereby shortening the calcination carbonization time.

If the cart according to the present invention is used, the carbonization of the wood will be uniform, there will be no end carbonization, and the yield will be very good, so that a very large practical effect can be obtained.

[Brief explanation of the drawing]

Fig. 1 shows an embodiment of the cart for a charcoal kiln according to the present invention.
Figure B is a cross-sectional view of the carbonization furnace into which the cart has been carried in, Figure 1C is a partially enlarged view of the cross section of the protective layer, Figure 2 is a vertical cross-section of the carbonization furnace shown in Figure 1, and Figure 3 is Figure 2. FIG. 2 is an explanatory diagram of the carbonization furnace shown in the open state. 1... Cart, 2... Carbonization furnace, 3... Frame, 4...
...protective layer, 5 ... groove, 6 ... hole, 7 ... duct, 8 ... large door, 9 ... ignition air hole, 10 ... water collection plate, 11 ... drainage hole, 12 ... trap , 13
...Large door vent, 14...Smoke stack.

Claims (1)

[Claims] 1. A protective layer of refractory bricks or refractory cement in the shape of a bent plate with a high central portion and downward slopes on both sides is used as the floor surface, and water collection plates are arranged at appropriate intervals below the protective layer. A trolley having a frame attached thereto, a plurality of grooves are formed on the surface of the protective layer extending from the bending ridgeline at the center to the sloped lower end edges on both sides, and each of the grooves has a A cart for a charcoal kiln, characterized in that a vertical through hole opening into a gap below the protective layer is formed at an appropriate position. 2. The trolley according to claim 1, wherein small grooves intersecting with the grooves are formed over the entire surface of the fireproof protective layer.