Dual purpose kiln for cooling and heating ceramsite

A heating kiln and cooling kiln technology, applied in the field of dual-purpose kiln, can solve the problems of poor cooling effect, high cooling cost of the cooler, and inability to use heat, so as to reduce the preheating time and energy consumption

Active Publication Date: 2012-01-25
ZHEJIANG DADONGWU GROUP CONSTR OF THE NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the process of cooling the roasted ceramsite from 700°C to room temperature, many people use natural cooling or cooler cooling. The cost of natural cooling is low, but the speed is slow, the work efficiency is low, and the cooling effect is poor. Cooler cooling The cost is high, but the cooling effect is good and the work efficiency is high; but these two methods can only cool the roasted ceramsite, but cannot use the heat emitted by the roasted ceramsite

Method used

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  • Dual purpose kiln for cooling and heating ceramsite
  • Dual purpose kiln for cooling and heating ceramsite
  • Dual purpose kiln for cooling and heating ceramsite

Examples

Experimental program
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Embodiment 1

[0022] Embodiment 1, see attached figure 1 , 2 , 3, a dual-purpose kiln for ceramsite heating and cooling, including a cooling kiln 1 and a heating kiln 2, see attached figure 1 , the cooling kiln 1 and the heating kiln 2 are integrated, and the middle is divided into two kilns that are not connected to each other by a partition wall 4, and there is a connecting hole 401 at the front end of the partition wall 4 to connect the two kilns. There is a feed port 101 at the front end of the kiln 1, and the feed port 101 is set on the top wall of the cooling kiln 1, and the quantity is determined according to the actual situation. There is a discharge port 102 at the rear end of the cooling kiln 1, and the discharge port is simultaneously It is also a cold air inlet, and the reason why the connection hole is opened at the front end of the partition wall (that is, near the feed inlet) is because if the connection hole is opened at the rear, there will be some ceramsite in the materia...

Embodiment 2

[0023] Embodiment 2, see attached Figure 4 , in this embodiment, the heating kiln 2 and the cooling kiln 1 are two independent kiln bodies separated, and the two kilns are connected through the connecting pipe 5, and a through hole 104 is provided at the front end of the side wall of the cooling kiln 1, and the heating kiln 2 side The front end of the wall is provided with a through hole 204 for communication, and the connecting pipe 5 is connected with the two through holes 104 and 204 . All the other are with embodiment 1.

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Abstract

The invention discloses a dual purpose kiln for cooling and heating ceramsite. The dual purpose kiln comprises a cooling kiln and a heating kiln; the front end of the cooling kiln is provided with a feed port; the rear end of the cooling kiln is provided with a discharge port; a conveying belt is arranged in the cooling kiln; the rear end of the heating kiln is provided with an air exhaust port which is connected with an air exhauster; a material box is arranged in the heating kiln; and the cooling kiln and the heating kiln are communicated through a connection device. The dual purpose kiln cools the calcined ceramsite and simultaneously heats ceramsite which is not preheated by using heat generated by the calcined ceramsite to ensure that the ceramsite has certain temperature before preheating, so energy sources required by preheating are reduced and preheating time is reduced.

Description

technical field [0001] The invention relates to a dual-purpose kiln for cooling baked ceramsite and simultaneously heating unheated ceramsite. Background technique [0002] Ceramsite is one of the main materials for making concrete. To make ordinary ceramsite into ceramsite that meets the standards for making concrete, it needs to go through multiple processes such as crushing-screening-preheating-roasting-cooling. After being roasted and discharged through the heating kiln, it is cooled rapidly to 1000°C~700°C, but when it is from 700°C to 400°C, slow cooling is required, because if the cooling rate is too fast, it will cause strong temperature shrinkage inside and on the surface of the ceramsite. Stress leads to the appearance of network micro-cracks on the surface, which reduces the particle strength of ceramsite, but it can be cooled rapidly below 400 °C. In the process of cooling the roasted ceramsite from 700°C to room temperature, many people use natural cooling or c...

Claims

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Application Information

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IPC IPC(8): F27B19/04
Inventor 郎剑雷钱晓倩詹树林成建跃方建华何剑锋
Owner ZHEJIANG DADONGWU GROUP CONSTR OF THE NEW MATERIAL
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