Roller bed type drying kiln

Abstract

The invention discloses a roller bed type drying kiln. A transverse heat supply air divider communicating with a heat supply air pipe is arranged below a roller bar of a roller bed of the drying kiln.The roller bed type drying kiln is characterized in that a moisture extraction air divider which communicates with a moisture extraction air pipe and is kept to be isolated from the heat supply air divider by the distance is arranged below the roller bar, and an air guiding device for obliquely upwards guiding airflow to the roller bar is arranged in front of the heat supply air divider. By adoption of the roller bed type drying kiln, stable and uniform plane hot airflow can be provided for the upper side and the lower side of a green brick, and uniform drying is conducted on the green brick.Through a hot air control system, the flow and the flow speed of various air flues of a hot air divider and the moisture extraction air divider can be adjusted, the phenomenon that the flow speed oflocal air of the end side of the roller bar is too high is prevented, and hot airflow is more uniform. An air divider arranged below the roller bed is further included, and condensate water on the airdivider can only drip to the kiln bottom but not drip to the green brick.

Description

technical field [0001] The invention relates to the technical field of a roller table drying kiln, in particular to a heating air supply and dehumidification system of a roller table drying kiln. Background technique [0002] Roller drying kilns are widely used in the ceramic industry for drying ceramic tiles. like figure 1 , 2 As shown, the heating air and dehumidification system of the current roller table drying kiln adopts the method of heating air under the roller and dehumidification on the roller, that is, the air supply is set under the roller 1 of the roller table. The hot air outlet is provided with a dehumidification port above the roller bar 1. In order to make the hot air flow in the kiln space uniform, the hot air outlet below the roller bar 1 usually adopts a horizontal air distributor 2 . The air distributor 2 is divided into multiple air ducts along the lateral direction of the kiln body 3, and has multiple air outlets separated horizontally. Each air du...

AI Technical Summary

Problems solved by technology

However, since the dehumidifying port 4 is located above the roller bar 1, the dehumidifying port 4 cannot be equipped with an air divider

Because if a dehumidifier is installed, the condensed water and dirt on the horizontal dehumidifier will drip onto the brick 5 on the lower roller 1, causing pollution and defects of the brick, so there are 4 dehumidifier ports Can be installed on the side walls on both sides of the kiln body 3, but cannot install the air distributor that runs through the cross section of the kiln body

In the actual production process, the dehumidification port 4 is set on the side wall of the kiln body 3. Because the ceramic tile 5 is placed in the middle of the roller 1, there will be a certain gap on both sides, and the resistance of the wind on both sides will be smaller. The two ends of the rod 1 produce a phenomenon of excessive local wind speed, commonly known as local short-circuit wind 6, which causes the edges of the bricks to crack and become waste products

Even if you try to adjust the flow rate and flow rate of each air channel of the heating air distributor, the area near the dehumidification port on the side wall of the kiln body 3 will still have local excessive wind speed, which will cause the edge of the brick to crack and become waste.

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