CN202835781U - Quaternary body hot-blast furnace - Google Patents

Abstract

The utility model relates to a quaternary body hot-blast furnace. The hot-blast furnace comprises a circulating air inlet, a circulating air outlet, a fresh air adding opening, an exhaust gas opening, a heat exchanger, a filter, a burner, a smoke discharge chimney and a circulating air fan, wherein the circulating air inlet is arranged on the lower portion of the heat-blast furnace, the exhaust gas opening is arranged on the upper portion of the hot-blast furnace, the burner is arranged below the exhaust gas opening, the heat exchanger is arranged on the middle portion of the hot-blast furnace, and the filter is arranged on the back portion of the heat exchanger. The quaternary body hot-blast furnace is clean and pollution-free. Since the hot-blast furnace can combust sufficiently, exhaust gas emission is lower than state environmental protection requirements. By means of an indirect exhaust heat exchanging structure, the heated circulating air does not contact with the exhaust gas and remains clean, and the burner automatically shuts off or reduces fire when temperature in the hot-blast furnace reaches a set temperature. When the temperature is lower than the set temperature, the hot-blast furnace automatically starts up, and temperature of output air can be precisely controlled.

Description

Quaternary hot air furnace

technical field

The utility model relates to a hot air stove for drying and heating, in particular to a four-element hot air stove.

Background technique

At present, the temperature of the flue gas discharged from the waste gas incinerator needs to be controlled below 250°C. Due to the high temperature of the flue gas in the incinerator, efficient and reasonable heat exchange is required, and the heat is often wasted in the heat exchange process.

Utility model content

In order to solve the above problems, the utility model provides a quaternary body hot blast stove with simple structure, high heat exchange efficiency, good filtering effect, energy saving and environmental protection.

The technical scheme of the utility model is: the hot blast stove is provided with a circulating air inlet, a circulating air outlet, a fresh air outlet, a waste gas outlet, a heat exchanger, a filter, a burner, a smoke exhaust chimney and a circulating fan. The circulating air inlet is set at the lower part of the hot blast stove, the exhaust gas port is set at the upper part of the hot blast stove, the burner is set under the exhaust gas port, the heat exchanger is set at the middle part of the hot blast stove, and the filter is set at the rear of the heat exchanger.

The burner is connected with a solenoid valve and a PLC intelligent controller.

The hot blast stove is provided with an inspection door, and the shell of the hot blast stove is filled with insulation cotton.

The utility model adopts a double-layer steel structure, lined with galvanized steel plate or stainless steel plate, galvanized corrugated plate or color plate on the outside, filled with insulation cotton in the middle, and has an inspection door on the side. The equipment is clean and pollution-free. Full combustion, the flue gas emission is lower than the national environmental protection requirements; the indirect flue gas heat exchange structure keeps the heated circulating air from contacting with the flue gas and keeps it clean. When the hot blast stove reaches the set temperature, the burner automatically shuts down or Reduce the firepower; when the temperature is lower than the set temperature, it will start automatically, and the output air temperature can be precisely controlled.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure, 1 is the fresh air outlet, 2 is the exhaust air outlet, 3 is the insulation cotton, 4 is the heat exchanger, 5 is the inspection door, 6 is the filter, 7 is the circulating air outlet, 8 is the circulating fan, and 9 is the exhaust chimney , 10 is a burner, and 11 is a circulating air inlet.

Detailed ways

Quaternary body hot blast stove, the hot blast stove is equipped with a circulating air inlet 11, a circulating air outlet 7, a fresh air outlet 1, an exhaust gas outlet 2, a heat exchanger 4, a filter 6, a burner 10, and a smoke exhaust chimney 9 and the circulating fan 8, the circulating air inlet 11 is arranged at the lower part of the hot blast stove, the exhaust gas outlet 2 is arranged at the upper part of the hot blast stove, the burner 10 is arranged below the exhaust gas outlet 2, and the heat exchanger 4 Set in the middle of the hot blast stove, the filter 6 is set at the rear of the heat exchanger, the burner 10 is connected with a solenoid valve and a PLC intelligent controller, the hot blast stove is provided with an inspection door 5, the hot blast stove The shell is filled with insulation cotton 3, and the mixed air passes through the circulating air inlet 11 to exchange heat with the heat exchanger 4, and then passes through the action of the circulating fan 8, passes through the filter 6 and then enters the oven through the exhaust port 2, and the temperature is transferred to the oven. After the workpiece, it enters the heat exchanger 4 through the circulating air inlet 11 and circulates in this way; the burner 10 provides a heat source for the mixed heat, and fully burns and decomposes the organic waste gas connected to the waste gas port 2 to make it discharge up to the standard. When the internal temperature of the hot blast stove is high, the fresh air supply port 1 is opened to reduce the temperature in the hot blast stove.

Claims (3)

1. Quaternary body hot blast stove, characterized in that: the hot blast stove is equipped with a circulating air inlet, a circulating air outlet, a fresh air outlet, a waste gas outlet, a heat exchanger, a filter, a burner, a smoke exhaust chimney and a circulation The fan, the circulating air inlet is arranged at the lower part of the hot blast stove, the exhaust gas outlet is arranged at the upper part of the hot blast stove, the burner is arranged below the exhaust gas outlet, the heat exchanger is arranged at the middle part of the hot blast stove, the The filter is set at the rear of the heat exchanger. 2. The quaternary hot air stove according to claim 1, characterized in that: the burner is connected with a solenoid valve and a PLC intelligent controller. 3. The quaternary hot blast stove according to claim 1, characterized in that: the hot blast stove is provided with an inspection door, and the shell of the hot blast stove is filled with insulation cotton.

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