Water-cooling radiation type incinerator for waste gas and waste liquid containing sodium salt

Abstract

The utility model discloses a sodium salt-containing waste gas and waste liquid water cooling radiation type incinerator which comprises a steel frame platform, a combustor and an incinerator body, the incinerator body is installed in the steel frame platform, the combustor is installed at the top of the incinerator body, a membrane type water cooling wall is installed on the inner wall of the incinerator body, and the incinerator body is divided into an incineration chamber and a cooling chamber which are distributed left and right through the membrane type water cooling wall. The bottom of the incineration chamber is communicated with the bottom of the cooling chamber, a nozzle of the combustor extends downwards into the incineration chamber, the top of the furnace body is provided with a platen superheater extending downwards into the cooling chamber, and a cabin type ash hopper is formed at the lower end of the furnace body. Radiation heat exchange is completely adopted in the incinerator, the convection tube is prevented from being blocked due to adhesion of ash, accumulated ash on the heated surface can be effectively removed through the steam soot blower, the good heat exchange effect is guaranteed, the area of an outlet of the cabin type ash hopper is large, the smoke temperature and the temperature of the surface of the ash hopper are high, the ash is in a molten state, condensation is not prone to occurring, and ash discharging is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of waste liquid and waste gas incineration treatment, in particular to a water-cooled radiation incinerator for waste gas and waste liquid containing sodium salts. Background Technique

[0002] With the rapid development of industries such as petrochemical, coal chemical, paper-making, and pesticide industries, during their production processes, a large amount of high-concentration salt-containing waste liquid and waste gas are often discharged. Currently, the high-temperature incineration method is usually used to treat the salt-containing waste liquid, and the harmless gas is generated and discharged into the atmosphere. During the incineration process, the sodium salts in the waste liquid form molten ash at high temperatures. Since the melting point of sodium salts is relatively low, it is extremely easy to adhere to the heat exchange tubes (convection tubes arranged in the incineration chamber), and it is easy to form blockages during long-term operation and is not easy to clean. Content of the Utility Model

[0003] The purpose of the utility model is to provide a water-cooled radiation incinerator for waste gas and waste liquid containing sodium salts, so as to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A water-cooled radiation incinerator for waste gas and waste liquid containing sodium salts, including a steel frame platform, a burner, and the furnace body of the incinerator. The furnace body is installed in the steel frame platform, the burner is installed at the top of the furnace body, the inner wall of the furnace body is installed with a membrane water wall, the membrane water wall divides the furnace body into an incineration chamber and a cooling chamber distributed left and right, the incineration chamber and the cooling chamber are interconnected at the bottom, the nozzle of the burner extends downward into the incineration chamber, a platen superheater is installed at the top of the furnace body and extends downward into the cooling chamber, a cabin-type ash hopper is formed at the lower end of the furnace body, and a flue gas outlet is provided on the upper side of the upper end of the cooling chamber.

[0005] Preferably, a refractory layer is covered on the inner side of the membrane water wall.

[0006] Preferably, a plurality of soot blowers are installed on the side wall of the cooling chamber along the height direction.

[0007] Compared with the prior art, the beneficial effects of the utility model are: All radiation heat exchange is adopted in this incinerator to avoid blockage of the convection tube bundle due to ash adhesion. The steam soot blower can effectively remove the ash on the heating surface and ensure good heat exchange effect. The cabin-type ash hopper has a large outlet area, and the flue gas flows downward and impacts the inclined surface of the ash hopper, making the temperature relatively high, and the ash is in a molten state, not easy to condense and easy to discharge ash. Brief Description of the Drawings

[0008] Figure 1 It is a schematic structural diagram of the utility model.

[0009] In the figure: 1. Steel frame platform; 2. Furnace body; 3. Burner; 4. Membrane water wall; 5. Refractory layer; 6. Ash hopper; 7. Incineration chamber; 8. Cooling chamber; 9. Soot blower; 10. Platen superheater. Specific embodiments

[0010] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0011] Please refer to Figure 1 , the present invention provides a technical solution: a sodium salt-containing waste gas and waste liquid water-cooled radiation incinerator, including a steel frame platform 1, a burner 3 and a furnace body 2 of the incinerator. The furnace body 2 is installed in the steel frame platform 1, the burner 3 is installed on the top of the furnace body 2, and a membrane water wall 4 is installed on the inner wall of the furnace body 2. The membrane water wall 4 is made of finned tubes welded together. A refractory layer 5 is covered on the inner side of the membrane water wall 4. The refractory layer 5 is made of clay or high-aluminum refractory material. The membrane water wall 4 divides the furnace body 2 into an incineration chamber 7 and a cooling chamber 8 distributed left and right. The incineration chamber 7 and the cooling chamber 8 are connected to each other at the bottom. The nozzle of the burner 3 extends downward into the incineration chamber 7, and waste water or waste liquid is sprayed into the incineration chamber 7 for combustion treatment. The membrane water wall 4 realizes temperature reduction through radiation heat transfer.

[0012] A platen superheater 10 extending downward into the cooling chamber 8 is installed on the top of the furnace body 2. The platen superheater 10 is composed of multiple groups of U-shaped superheater tubes. The platen superheater 10 is used for heat exchange and temperature reduction of the flue gas. A cabin-type ash hopper 6 is formed at the lower end of the furnace body 2. A flue gas outlet is provided on the upper side of the side wall of the cooling chamber 8. A plurality of soot blowers 9 are installed on the side wall of the cooling chamber 8 along the height direction. The soot blowers 9 adopt steam soot blowers to regularly blow soot on the platen superheater 10 to prevent ash adhesion and blockage.

[0013] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A water-cooled radiation incinerator for waste gas and waste liquid containing sodium salts, comprising a steel frame platform (1), a burner (3) and a furnace body (2) of the incinerator. The furnace body (2) is installed in the steel frame platform (1), and the burner (3) is installed at the top of the furnace body (2), characterized in that: The inner wall of the furnace body (2) is equipped with a membrane water wall (4). The membrane water wall (4) divides the furnace body (2) into an incineration chamber (7) and a cooling chamber (8) distributed left and right. The incineration chamber (7) and the cooling chamber (8) are interconnected at the bottom. The nozzle of the burner (3) extends downward into the incineration chamber (7). The top of the furnace body (2) is equipped with a platen superheater (10) extending downward into the cooling chamber (8). The lower end of the furnace body (2) forms a cabin-type ash hopper (6). The upper side of the cooling chamber (8) is provided with a flue gas outlet.

2. The water-cooled radiation incinerator for waste gas and waste liquid containing sodium salt according to claim 1, wherein: The inner side of the membrane water wall (4) is covered with a refractory layer (5).

3. The water-cooled radiation incinerator for waste gas and waste liquid containing sodium salt according to claim 2, characterized in that: A plurality of soot blowers (9) are installed on the side wall of the cooling chamber (8) along the height direction.

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