CN201106038Y - A flat shot heating furnace for asphalt - Google Patents

Abstract

The utility model discloses a flat-flame and radiation heating furnace for asphalt and comprises a furnace body, burners, a furnace tube and an air preheater. The flat-flame and radiation heating furnace is characterized in that a plurality of burners are arranged at the two sides of the furnace body; the furnace body is internally provided with the S-shaped furnace tube and the air preheater is arranged above the furnace tube; a plurality of separation walls are arranged at the two sides of the inside of the furnace body; the top part of the furnace body is fixedly connected with a chimney. The flat-flame and radiation heating furnace adopts the separation walls to divide the furnace body into a plurality of furnace sections and used the combination method of flat flame direct heating and radiation heating to heat the materials inside the tube section by section, therefore, the temperature rising rate of the furnace can be controlled and the furnace temperature can be conveniently regulated; the flat-flame and radiation heating furnace has simple structure, convenient operation and maintenance, continuous heating, high production efficiency and stable quality and is applicable for large-scale continuous production.

Description

A flat shot heating furnace for asphalt

technical field

The utility model relates to heating equipment for chemical production, in particular to an asphalt flat-shot heating furnace.

Background technique

In the production of medium-temperature asphalt and modified asphalt in the prior art, in order to ensure the quality, it is necessary to strictly control the temperature and heating rate when heating them. Using the method of continuous heating with multiple kettles, this heating method has a long production cycle and large heat loss. At present, there are also pipe-type heating furnaces used to heat asphalt. The structure is that the furnace tube is arranged in the middle of the furnace, and the burner installed between the furnace tube and the furnace wall at the bottom of the furnace is used to form a wall-attached flame. The working fluid in the tube is heated. Although it has the characteristics of continuous heating and high production efficiency, it is suitable for large-scale continuous production, but it cannot control the heating rate in the furnace, and the quality of the asphalt is difficult to guarantee.

Contents of the invention

The purpose of this utility model is to provide an asphalt flat-shot heating furnace for the deficiencies of the prior art, which can control the heating rate and furnace temperature in the furnace, has the characteristics of continuous heating, high production efficiency, stable quality, and is suitable for large-scale Continuous production.

The concrete technical scheme that realizes the utility model purpose is:

An asphalt flat-shot heating furnace, including a furnace body, a burner, a furnace tube, and an air preheater. Air preheater; there are several partition walls on both sides of the furnace body; the chimney is fixed on the top of the furnace body.

The utility model adopts a partition wall to divide the furnace into several furnace sections, and uses a combination of flat flame direct heating and radiation heating to heat the materials in the furnace tube in sections, which can control the heating rate in the furnace and facilitate the adjustment of each furnace section. It has the characteristics of continuous heating, high production efficiency, stable quality, and is suitable for large-scale continuous production.

Description of drawings

Fig. 1 is the structural representation of the utility model

Figure 2 is a side view of Figure 1

Detailed ways

Referring to Figures 1-2, the utility model includes a furnace body 1, a flat flame burner 2, a furnace tube 3, and an air preheater 4. The furnace body 1 is made of refractory bricks, and the furnace tube 3 is arranged in an S shape on the In the body 1, several partition walls 7 are provided on both sides of the furnace body 1, which divide the furnace body 1 into combustion chambers of several furnace sections, and the flat flame burner 2 is arranged on the furnace body 1 between the two partition walls 7. Above, the top of the furnace tube 3 is provided with an air preheater 4, the top of the furnace body 1 is fixedly connected to the chimney 9, and the inlets 5 and 6 of the flat flame burner 2 are respectively connected to the gas pipe 10 and the air pipe 11.

Referring to Fig. 1, the utility model works like this: the air is sent in from the inlet 12, the air is heated by the air preheater 4 in the furnace body 1, and the heated air is respectively supplied to the flat flame burner 2 by the air pipe 11 for combustion Oxygen is supplied from time to time, and the gas pipe 10 supplies the gas to the flat flame burner 2 for combustion respectively. The material is sent in from the inlet 13 of the furnace pipe 3 and passed through the combustion chambers of several furnace sections formed by the partition wall 7 in the furnace body 1. Each section is heated by 5~10 degrees respectively. The material in the furnace tube 3 is heated in sections and then sent out from the outlet 8, and the combustion waste gas is heated by the air preheater 4 through the channel in the furnace and then discharged from the chimney 9. discharge. Adjusting the flame burner 2 of each furnace section can conveniently control the heating rate in the furnace and the furnace temperature of each furnace section. The operation is convenient, the production efficiency is high, and the quality is stable, which is very suitable for large-scale continuous production.

Claims (1)

1. An asphalt flat-shot heating furnace, comprising a body of furnace (1), a burner (2), a furnace tube (3), and an air preheater (4), characterized in that there are several burners (2) arranged in the furnace body (1) on both sides; furnace body (1) is provided with S-shaped furnace tube (3), and an air preheater (4) is provided above the furnace tube (3); A partition wall (7); the top of the furnace body (1) is fixedly connected to the chimney (9).