Pot-type environment-friendly calcining furnace

Abstract

The utility model discloses a kind of tank-type environmental protection calcining furnace in carbon production equipment field, including material tank and flue. Still be provided with supporting plate, air channel, air pull plate and multiple air release holes. The lower part side wall of material tank is constructed by clay refractory brick, and is supported on supporting plate by clay refractory brick part. Air channel is set on supporting plate and is located the tank wall outside of material tank. Multiple air release holes are opened in clay refractory brick part of the lower part of material tank, and are communicated with air channel. Air pull plate is set on air channel. One end of air channel is provided with air channel inlet, and is communicated with the first layer of flue by air channel inlet. The utility model is by air release hole and air channel collaborative air guide structure, sulfur-containing waste gas is introduced into desulfurization system processing in orientation, both realizes waste gas standard discharge and eliminates gas explosion hidden danger, reaches environmental protection and safety production double target.

Description

Technical Field

[0001] This utility model relates to the field of carbon production equipment, and in particular to a tank-type environmentally friendly calcining furnace. Background Technology

[0002] In the carbon production field, the carbon calcination process is crucial, and the pot furnace is one of the commonly used pieces of equipment. With industrial development, sulfur-containing petroleum coke, as a common raw material, is widely used in calcination operations. However, existing pot furnaces have significant problems in processing sulfur-containing petroleum coke. During the calcination of sulfur-containing petroleum coke, sulfur-containing combustible waste gas is discharged from the discharge port. This waste gas not only causes environmental pollution around the discharge port but also poses a threat to the health of operators.

[0003] More seriously, the accumulation of sulfur-containing combustible waste gas at the discharge port can easily trigger an explosion in the discharge system, leading to equipment damage and increasing production costs and safety risks for enterprises. In the event of an explosion, not only will normal production be disrupted, but serious consequences such as casualties may also occur. Therefore, it is essential to develop a tank-type environmentally friendly calcining furnace that can solve the problems of blasting at the discharge port and discharging polluting waste gas during the calcination of sulfur-containing petroleum coke. Utility Model Content

[0004] The main objective of this invention is to provide a tank-type environmentally friendly calcining furnace to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A tank-type environmentally friendly calcining furnace includes a material tank and a fire channel. The material tank has multiple layers of serpentine fire channels on both sides. It also includes a support plate, air channels, air vents, and multiple vent holes. The lower sidewall of the material tank is constructed of clay refractory bricks and is supported on the support plate via these bricks. The air channels are located on the support plate and on the outer side of the material tank wall. Multiple vent holes are located in the lower clay refractory brick sections of the material tank and communicate with the air channels. Air vents are installed on the air channels. One end of the air channel has an air inlet, which connects to the first layer of the fire channel.

[0006] Furthermore, the horizontal cross-section of the clay refractory brick is rectangular, and at least two vent holes are evenly distributed along the long side of the rectangle.

[0007] Furthermore, the end of the flue is connected to a flue gas treatment system for desulfurization.

[0008] Furthermore, the diameter of the vent hole is 20mm.

[0009] This utility model also includes other components that enable the tank-type environmentally friendly calcining furnace to operate normally. These devices or components all employ conventional techniques in the art. Furthermore, devices and components not limited in this utility model all employ conventional techniques in the art, such as the flue gas treatment system described in this application. In specific implementation, appropriate equipment or component models can be selected according to the specific working scenario.

[0010] The working principle of this invention is as follows: During the operation of the calcining furnace, the sulfur-containing harmful gases accumulated at the bottom of the refractory tank are first discharged through 20mm diameter vent holes in the clay refractory brick section at the bottom of the calcining tank under pressure. These waste gases then enter the air duct outside the calcining tank and are drawn into the first layer of the flue gas through the air duct inlet. Inside the flue gas, the sulfur-containing waste gases mix with the high-temperature flue gas and are then purified by the desulfurization flue gas treatment system connected to the flue gas, ultimately meeting emission standards before being discharged into the atmosphere. The vent hole structure, with evenly distributed vent holes along the long side of the rectangular cross-section clay refractory bricks, combined with the regulating effect of the air pull plate, ensures the directional discharge of harmful gases and effectively avoids the risk of explosion caused by the accumulation of combustible gas at the bottom of the calcining tank, achieving the dual goals of environmental protection and safe production.

[0011] Compared with the prior art, the present invention has the following beneficial effects: 1. Effectively remove sulfur-containing harmful gases accumulated at the bottom of the tank: The combined structure of the vent and air duct guides the exhaust gas into the fire channel, avoiding the risk of explosion caused by the accumulation of combustible gas.

[0012] 2. Achieve emission standards for waste gas: Sulfur-containing waste gas is introduced into the desulfurization flue gas treatment system for purification, which significantly reduces waste gas pollution at the discharge port.

[0013] 3. Improve equipment operation safety: The evenly distributed vent structure, combined with the air pull plate for regulation, prevents equipment damage caused by gas accumulation at the bottom of the tank. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a tank-type environmentally friendly calcining furnace according to this utility model.

[0015] Figure 2 For along Figure 1 A cross-sectional view along the AA direction.

[0016] In the diagram: 1. Support plate; 2. Air duct; 3. Vent hole; 4. Fire duct; 5. Air pull plate; 6. Material tank; 7. Air duct inlet. Detailed Implementation

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Example: like Figures 1-2 As shown, a tank-type environmentally friendly calcining furnace includes a material tank 6 and a fire channel 4. The material tank 6 has multiple serpentine fire channels 4 on both sides. It is also equipped with a support plate 1, an air channel 2, an air pull plate 5, and multiple vent holes 3.

[0019] The lower sidewall of the material tank 6 is constructed of clay refractory bricks and is supported on the support plate 1 via these bricks. An air duct 2 is located on the support plate 1 and on the outer side of the tank wall of the material tank 6. Multiple vent holes 3 are located on the clay refractory brick portion of the lower part of the material tank 6 and communicate with the air duct 2. An air pull plate 5 is installed on the air duct 2. An air duct inlet 7 is provided at one end of the air duct 2, and the air duct inlet 7 connects to the first layer of the fire channel 4.

[0020] In addition, the end of flue gas duct 4 is connected to a flue gas treatment system for desulfurization.

[0021] Specifically, the horizontal cross-section of the clay refractory brick section is rectangular, and at least two vent holes 3 are evenly distributed along the long side of the rectangle. The diameter of the vent holes 3 is 20mm.

[0022] The working principle of this utility model's tank-type environmentally friendly calcining furnace is as follows: During the operation of the calcining furnace, the sulfur-containing harmful gases accumulated at the bottom of the material tank 6 are first discharged through the 20mm diameter vent holes 3 set in the clay refractory brick section at the bottom of the material tank 6 under pressure. These waste gases then enter the air duct 2 set on the outside of the material tank 6 and are drawn into the first layer of the fire channel 4 through the air duct inlet 7. Inside the fire channel 4, the sulfur-containing waste gases mix with the high-temperature flue gas and are then purified by the desulfurization flue gas treatment system connected to the fire channel 4, finally meeting the standards for discharge into the atmosphere. Through the structure of vent holes 3 evenly arranged along the long side of the rectangular cross-section clay refractory bricks, combined with the regulating effect of the air pull plate 5, the directional discharge of harmful gases is ensured, and the risk of explosion caused by the accumulation of combustible gas at the bottom of the material tank 6 is effectively avoided, achieving the dual goals of environmental protection and safe production.

[0023] The above embodiments are merely descriptions of preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope of the present utility model.

Claims

1. A tank-type environmentally friendly calcining furnace, comprising a material tank (6) and a fire channel (4), wherein the material tank (6) is provided with multiple layers of serpentine fire channels (4) on both sides, characterized in that: It is also provided with a support plate (1), an air duct (2), an air pull plate (5) and multiple vent holes (3); the lower side wall of the material tank (6) is constructed of clay refractory bricks and is supported on the support plate (1) through the clay refractory bricks; the air duct (2) is set on the support plate (1) and located on the outside of the tank wall of the material tank (6); multiple vent holes (3) are opened at the clay refractory bricks at the lower part of the material tank (6) and are connected to the air duct (2); the air pull plate (5) is set on the air duct (2); one end of the air duct (2) is provided with an air duct inlet (7) and is connected to the first layer of the fire channel (4) through the air duct inlet (7).

2. The tank-type environmentally friendly calcining furnace according to claim 1, characterized in that: The horizontal cross-section of the clay refractory brick is rectangular, and at least two vent holes (3) are evenly provided on the long side of the rectangle.

3. The tank-type environmentally friendly calcining furnace according to claim 1, characterized in that: The end of the fire channel (4) is connected to a flue gas treatment system for desulfurization.

4. The tank-type environmentally friendly calcining furnace according to claim 1, characterized in that: The diameter of the vent hole (3) is 20 mm.

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