CN202993782U - Hot blast heater for drying white carbon black - Google Patents

Abstract

The utility model discloses a hot blast heater for drying white carbon black of black tail gas of burned carbon. The hot blast heater comprises a carbon black tail gas burner, an air distribution room is arranged above a burning room of the carbon black tail gas burner, and a heat exchanger is arranged at the tail end of the air distribution room. A hot air outlet communicated with a white carbon black drying tower is arranged on one sides of the heat exchanger, a heat exchange air blower is arranged above the other side of the heat exchanger, an air pre-heater and a smoke induced draft fan are sequentially arranged at the outlet end of the heat exchanger, an input pipe of the air pre-heater is communicated with the combustion fan, and the air pre-heater sends pre-heated carbon black to the carbon black tail gas burner through a convey pipe. The hot blast heater is provided with the carbon black tail gas burner and the heat exchanger, heat generated by tail gas burning is conveyed to the drying tower to dry the white carbon black through the hot air outlet after heat exchange is carried out on the heat, and energy is saved.

Description

A kind of hot air furnace for drying white carbon black

technical field

The utility model relates to a hot blast stove device for burning carbon black industrial tail gas, which is suitable for providing hot air to the drying process of white carbon black production in white carbon black production.

Background technique

At present, the hot blast stoves used in the production of white carbon black are all coal-fired or natural gas-fired hot blast stoves, and the production cost is high. The carbon black tail gas has a certain calorific value, and the tail gas contains mainly carbon monoxide and a large dust content. However, the current carbon black tail gas is generally emptied and wasted, cannot be effectively used, and also pollutes the air.

Utility model content

The technical problem to be solved by the utility model is to provide a hot air stove for drying white carbon black which can recycle carbon black tail gas.

In order to solve the above-mentioned technical problems, the technical scheme adopted by the utility model is: a kind of hot air stove for drying the white carbon black of burning carbon black tail gas, its key technology is: comprise a carbon black tail gas burner, in the carbon black tail gas burner An air distribution chamber is provided above the combustion chamber, and a heat exchanger is provided at the end of the air distribution chamber; a hot air outlet connected to the silica drying tower is provided on one side of the heat exchanger, and a heat exchanger is provided on the other side. The blower is equipped with an air preheater and a flue gas induced draft fan in turn at the outlet of the heat exchanger. The air preheater is connected with the combustion fan through the input pipeline, and the air preheater transfers the preheated charcoal The black tail gas is sent to the carbon black tail gas burner.

The beneficial effect produced by adopting the above technical scheme is that the utility model is provided with a carbon black tail gas burner and a heat exchanger, and the heat generated after the tail gas is burned is transferred to the drying tower through the set hot air outlet to dry the white carbon black after heat exchange. ; An air preheater is installed at the outlet of the heat exchanger, and the air passing through the combustion-supporting fan is preheated and then enters the carbon black burner for air distribution, which partially recovers the residual heat of the flue gas and saves energy.

Description of drawings

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

Among them, 1. Carbon black tail gas burner; 2. Combustion chamber; 3. Air distribution chamber; 4. Heat exchanger; 5. Air preheater; 6. Flue gas induced draft fan; 7. Heat exchange blower; 8. Hot air exit.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in further detail.

Referring to accompanying drawing 1, the utility model comprises a carbon black tail gas burner 1, is provided with air distribution chamber 3 above the combustion chamber 2 of carbon black tail gas burner 1, is provided with heat exchanger 4 at the end of air distribution chamber 3; One side of the heat exchanger 4 is provided with a hot air outlet 8 connected with the silica drying tower, and a heat exchange blower 7 is provided above the other side, and an air preheater 5 and an air preheater 5 are successively arranged at the outlet end of the heat exchanger 4 The flue gas induced fan 6 and the air preheater 5 communicate with the combustion-supporting fan 9 through the input pipeline, and the air preheater 5 sends the preheated carbon black tail gas to the carbon black tail gas burner 1 through the delivery pipeline.

After adopting the utility model, the carbon black tail gas passes through the carbon black tail gas burner 1, enters the burner according to a certain ratio of air and tail gas, and after the flame enters the combustion chamber 2, the hot air enters the heat exchanger 4 through the air distribution chamber 3 for heating. Exchange, the shell-side flue gas working under negative pressure is used to exchange heat with the tube-side air working under positive pressure to ensure the cleanliness of the heat exchange air. After heat exchange, the clean air enters the drying tower through the hot air outlet 8 for white carbon black. The product is dry. The flue gas is discharged through the flue gas induced draft fan 6, and the air preheater 5 is installed at the outlet of the heat exchanger 4. wind. The utility model uses industrial carbon black tail gas as fuel to carry out heat exchange through a heat exchanger to dry the white carbon black product, which ensures that the white carbon black product is not polluted by impurities in the carbon black tail gas and reduces production costs. Manufacturers can save about 1/4 of the production cost compared to burning carbon black tail gas.

Claims (1)

1. a white carbon is dry use hot-blast stove, it is characterized in that: comprise a carbon black tail gas combustor (1), be provided with distribution plenum (3) above the combustion chamber (2) of carbon black tail gas combustor (1), be provided with heat exchanger (4) at the end of distribution plenum (3); Be provided with the hot-blast outlet (8) that is connected with the white carbon drying tower in heat exchanger (4) one sides, the opposite side top is provided with heat exchange air blast (7), the port of export at heat exchanger (4) is provided with air preheater (5) and smoke induced draught fan (6) successively, air preheater (5) is communicated with combustion fan (9) by intake line, and the carbon black tail gas of described air preheater (5) after conveyance conduit is with preheating delivered to carbon black tail gas combustor (1).

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