CN201093861Y - Double assembling energy saving type industry tunnel kiln - Google Patents

Abstract

The utility model relates to a semidetached energy-saving industrial tunnel kiln which is characterized in that more than two tunnel kilns are arranged side by side in a semidetached reverse direction way, a zone of a kiln, which needs heating, mutually corresponds and tightly leans on a zone of the other kiln of which heat needs removing, and namely, a preheating zone, a reducing zone, an oxidizing zone and a cooling zone, and the two kilns correspond to each other. The zones of the kilns are separated into more than three zones. The semidetached energy-saving industrial tunnel kiln has high heat utilization factor, high utilization factor of a loading car, small occupation space, low investment, low labor intensity and no tail gas discharge. The semidetached energy-saving industrial tunnel kiln greatly saves the energy and solves the environmental protection problem of a common tunnel kiln.

Description

Double split type energy-saving industrial tunnel kiln

technical field

The utility model relates to an industrial furnace and kiln, in particular to a double-combined energy-saving industrial tunnel kiln.

Background technique

At present, various industrial furnaces and kilns are widely used in various aspects of metallurgy, building materials, chemicals, ceramics, and light industry; tunnel kilns have a simple structure and are used for calcination, smelting, and reduction of solid materials, with strong adaptability. Tunnel kiln has low manufacturing cost, few moving parts and simple maintenance, so it has been widely promoted.

Ordinary tunnel kilns are generally divided into material preheating area, working area, and material cooling area. The temperature in the working area is generally high and contains a large amount of usable heat energy. These heat energy have not been recycled before; now very few manufacturers have begun to recycle them. , but the kiln body of the tunnel kiln is very long, generally more than 60 meters, and its long kiln body seriously restricts the recovery and utilization of heat energy. high. Moreover, the material of the transmission pipeline is special, and the consumables require a lot of investment and take up a lot of space.

The kiln body of ordinary tunnel kiln is generally more than 60 meters, and the charging trolley returns to the feeding end after unloading at the discharging end.

Defects of the old ordinary tunnel kiln: high energy consumption, low heat utilization rate; large floor area, low degree of mechanization, and high labor intensity.

Contents of the invention

The purpose of the utility model is to provide a double-unit energy-saving industrial tunnel kiln with small heat loss, high heat utilization rate, energy saving, time saving and labor saving.

Aiming at the above defects of ordinary tunnel kilns, the utility model develops and researches a double-combined energy-saving industrial tunnel kiln. The zone to be heated (preheating zone) and the zone to be removed from the heat (cooling zone) of another kiln (B) correspond closely to each other, and the two kilns in the preheating zone, reduction zone, oxidation zone and cooling zone correspond to each other.

The kiln is divided into more than three districts, which can be four districts, five districts or more.

Compared with the prior art, the double-split energy-saving industrial tunnel kiln of the utility model has the following advantages:

1. Compared with the ordinary tunnel kiln, the double-split energy-saving industrial tunnel kiln has a higher heat utilization rate and can greatly save energy.

2. Double-split energy-saving industrial tunnel kiln from three zones to four zones, five zones or more, making full use of heat energy.

3. The double-split energy-saving industrial tunnel kiln basically has no tail gas emission, which solves the environmental protection problems of ordinary tunnel kilns.

4. Compared with the ordinary tunnel kiln, the double-split energy-saving industrial tunnel kiln has a higher utilization rate of charging trolleys, and has a small footprint, small investment, and low labor intensity.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the double-split energy-saving industrial tunnel kiln of the present invention.

In the figure, 1-low temperature cooling zone, 2-medium temperature cooling zone, 3-high temperature working zone, 4-medium temperature heating zone, 5-low temperature heating zone, 6-low temperature cooling zone, 7-medium temperature cooling zone, 8-high temperature working zone , 9-medium temperature heating zone, 10-low temperature heating zone, 11-low temperature airflow, 12-low temperature hot airflow, 13 medium temperature cold airflow, 14-medium temperature hot airflow, 15-medium temperature hot airflow, 16-medium temperature cold airflow, 17 - low temperature hot air, 18 - low temperature cold air.

Detailed ways

As shown in Figure 1, the utility model double split type energy-saving industrial tunnel kiln is to use more than two tunnel kilns A and B to form a pair of reverse side-by-side arrangements, so that the heating zone (preheating zone) of A kiln and B kiln The hot zone (cooling zone) that needs to be removed from the kiln corresponds closely to each other, and the two kilns in the preheating zone, reduction zone, oxidation zone, and cooling zone correspond to each other. The kiln is divided into more than three districts, which can be four districts, five districts or more.

The double-combined energy-saving industrial tunnel kiln of the utility model can also be designed as multiple groups of double-combined tunnel kilns.

In the double-split energy-saving industrial tunnel kiln of the utility model, during operation, excess heat from the chemical reaction of substances in the high-temperature working area of the A kiln and excess heat in the cooling area are transferred to the heating area of the B kiln. The tunnel kiln is designed with high temperature zone, medium temperature zone and low temperature zone where heat is used and needs to be removed. Each zone is designed and installed correspondingly, and the heat carrier is recycled. Therefore, the heat carrier medium transmission pipeline is very short, the heat dissipation area is greatly reduced, and the heat loss is small. The heat utilization rate is high, the total energy consumption is reduced, and a large amount of energy can be saved; and the consumables are less, the investment is small, the space is small, and the investment is low. The two kilns in the preheating zone, reduction zone, oxidation zone, and cooling zone of the materials in production correspond to each other and work closely together to recover the heating and waste heat of the materials and oxygen, and lead the exhaust gas that should be evacuated to another kiln for use, so that The heat energy of the tail gas is fully recovered and utilized, which solves the problem of tail gas emission and eliminates environmental pollution.

The tunnel kiln of the utility model is arranged side by side in a double arrangement, the discharge end of A kiln is close to the feed end of B kiln, the discharge end of B kiln is close to the feed end of A kiln, and the charging trolley of A kiln After unloading at the discharge end, it is used as the feed trolley of B kiln for mutual circulation, with short distance, small workload and low labor intensity.

Claims (2)

1. double combined power-saving industrial tunnel cave, it is characterized in that becoming that Two bors d's oeuveres is reverse to be arranged in juxtaposition with plural tunnel cave, allow the need thermal treatment zone of a kiln and the need of another kiln shift out the hot-zone in correspondence with each other, rely closely, promptly preheating zone, reducing zone, zoneofoxidation, cooling zone two kilns are corresponding mutually.

2. double combined power-saving industrial tunnel cave according to claim 1 is characterized in that subregion is more than three districts in the kiln.

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