Harmless treatment furnace for organic waste liquid

Abstract

The utility model discloses a harmless treatment furnace for organic waste liquid, which relates to the technical field of waste liquid treatment and comprises a combustion chamber, a gas burner is arranged at the bottom end of the combustion chamber, a smoke exhaust pipe is connected to the top end of the combustion chamber, and a plurality of auxiliary fuel nozzles are arranged in the middle of the combustion chamber; the evaporation chamber is arranged on the outer side of the combustion chamber in a sleeving mode, an electric heating module is arranged at the bottom end of the evaporation chamber, and a liquid inlet pipe is connected to the top end of the evaporation chamber; a plurality of exhaust holes are formed in the middle of the combustion chamber in the circumferential direction of the combustion chamber, and the combustion chamber communicates with the evaporation chamber through the exhaust holes. According to the harmless treatment furnace for the organic waste liquid, the organic waste liquid is gasified and then incinerated, meanwhile, heat generated in the incineration process can heat and gasify the organic waste liquid, and therefore energy consumption is reduced; the auxiliary fuel nozzle and the gas burner are started according to the calorific value of the organic waste liquid, energy consumption is further reduced, and the organic waste liquid treatment cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of waste liquid treatment technology, specifically to a harmless treatment furnace for organic waste liquid. Background Technology

[0002] Incineration is a method of treating waste liquid by burning and oxidizing waste liquid containing high concentrations of organic matter at high temperatures, converting the organic matter into harmless substances such as water and carbon dioxide.

[0003] Chinese Utility Model Patent Application No. CN201920297370.4 discloses an organic waste liquid incinerator, including a waste liquid combustion furnace. A combustion device for burning flue gas is connected to a pipe on one side wall of the bottom of the combustion furnace. A waste liquid conveying pipe extending into the furnace is located at the upper end of the furnace, and an atomizing nozzle is installed at one end of the conveying pipe inside the furnace. When this organic waste liquid incinerator injects organic waste liquid into the combustion chamber through the atomizing nozzle and is burned by the combustion device, the heat generated by combustion is not fully utilized. Furthermore, the continuous combustion by the combustion device is required to meet the incineration needs of organic waste liquids of different concentrations, resulting in high energy consumption and high organic waste liquid treatment costs.

[0004] Therefore, it is necessary to propose a harmless treatment furnace for organic waste liquid to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this utility model is to provide an organic waste liquid harmless treatment furnace to solve the problems of high energy consumption and high treatment cost caused by existing organic waste liquid incinerators mentioned in the background art, which all rely on combustion devices for incineration when treating organic waste liquids of different concentrations.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an organic waste liquid harmless treatment furnace, comprising:

[0009] The combustion chamber has a gas burner at its bottom and an exhaust pipe at its top. Several auxiliary fuel nozzles are located in the middle of the combustion chamber.

[0010] An evaporation chamber is fitted outside the combustion chamber. An electric heating module is provided at the bottom of the evaporation chamber, and a liquid inlet pipe is connected to the top of the evaporation chamber.

[0011] The combustion chamber has several exhaust holes in its center along its circumference, and the combustion chamber and the evaporation chamber are connected through the exhaust holes.

[0012] Preferably, the auxiliary fuel nozzle is connected to the fuel pipeline, and the outer side of the section of the fuel pipeline located inside the incinerator is provided with a heat insulation layer.

[0013] Preferably, the cross-sectional area of ​​the combustion chamber gradually increases from top to bottom.

[0014] Preferably, the bottom of the combustion chamber is provided with an air supply pipe, and the air inlet end of the air supply pipe is connected to a blower.

[0015] Preferably, an asbestos mesh is provided above the exhaust port, and the asbestos mesh is fixedly connected to the inside of the combustion chamber.

[0016] Preferably, the inlet pipe is equipped with a flow valve and a U-shaped tube.

[0017] Preferably, a temperature sensor for monitoring the internal temperature of the combustion chamber is provided on the inner side of the combustion chamber.

[0018] Preferably, it also includes a heat exchanger, wherein the exhaust pipe and the air supply pipe are respectively connected to two different flow channels of the heat exchanger.

[0019] Preferably, the flue gas outlet of the heat exchanger is connected to a waste gas treatment device, and the exhaust port of the waste gas treatment device is equipped with an online waste gas detection device.

[0020] (III) Beneficial Effects

[0021] Compared with the prior art, this utility model provides a harmless treatment furnace for organic waste liquid, which has the following beneficial effects:

[0022] 1. This organic waste liquid harmless treatment furnace is equipped with a combustion chamber and an evaporation chamber on the outside. With the cooperation of the two, the organic waste liquid is gasified and then incinerated. At the same time, the heat generated during the incineration process can heat and gasify the organic waste liquid, thereby reducing energy consumption.

[0023] 2. This organic waste liquid harmless treatment furnace, by setting up auxiliary fuel nozzles and gas burners, activates the auxiliary fuel nozzles and gas burners according to the concentration and calorific value of combustible organic matter in the gasified waste liquid, which not only ensures the complete combustion of organic waste, but also comprehensively reduces energy consumption and organic waste liquid treatment costs. Attached Figure Description

[0024] Figure 1 This is a cross-sectional schematic diagram of the structure of this utility model;

[0025] Figure 2 This is a flowchart illustrating the present invention.

[0026] In the diagram: 1. Exhaust pipe; 2. Insulation layer; 3. Temperature sensor; 4. Combustion chamber; 5. Auxiliary fuel nozzle; 6. Fuel pipeline; 7. Exhaust vent; 8. Evaporation chamber; 9. Electric heating module; 10. Blower; 11. Air supply pipe; 12. Flow valve; 13. U-shaped pipe; 14. Liquid inlet pipe; 15. Gas burner; 16. Gas pipe; 17. Incinerator; 18. Heat exchanger; 19. Waste gas treatment device; 20. Waste gas online detection device; 21. Asbestos mesh. Detailed Implementation

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Please see Figure 1-2 As shown, an organic waste liquid harmless treatment furnace includes a combustion chamber 4 and an evaporation chamber 8. The bottom end of the combustion chamber 4 is provided with a gas burner 15, the top end of the combustion chamber 4 is connected to a flue pipe 1, and the middle part of the combustion chamber 4 is provided with several auxiliary fuel nozzles 5. The evaporation chamber 8 is sleeved on the outside of the combustion chamber 4. The bottom end of the evaporation chamber 8 is provided with an electric heating module 9, and the top end of the evaporation chamber 8 is connected to a liquid inlet pipe 14. Several exhaust holes 7 are opened in the middle part of the combustion chamber 4 along its circumference, and the combustion chamber 4 and the evaporation chamber 8 are connected through the exhaust holes 7.

[0029] In use, the organic waste liquid is sent into the evaporation chamber 8 through the liquid inlet pipe 14, so that the liquid level is maintained below the exhaust port 7. Under the heating of the electric heating module 9, the organic solvent inside the evaporation chamber 8 is vaporized and enters the combustion chamber 4 through the exhaust port 7. The gas burner 15 is started to incinerate the vaporized organic solvent. The heat generated in this process heats the liquid in the evaporation chamber 8, reducing the energy consumption of the electric heating module 9.

[0030] If the calorific value of the organic waste liquid is high, and the heat generated by its combustion can sustain its self-ignition, then the gas burner 15 is turned off to reduce gas consumption. When it cannot sustain self-ignition, auxiliary fuel is added to the combustion chamber 4 through the auxiliary fuel nozzle 5, and the gasified waste liquid is ignited by the combustion of the auxiliary fuel. If it still cannot be burned or the combustion is incomplete, then the gas burner 15 is started to incinerate the gasified waste liquid. Different incineration methods are adopted according to the calorific value of the organic waste liquid to reduce energy consumption.

[0031] To further reduce heat loss, an insulation layer 2 is provided on the outside of the evaporation chamber 8.

[0032] Specifically, the auxiliary fuel nozzle 5 is connected to the fuel pipeline 6. The outer side of the section of the fuel pipeline 6 located inside the incinerator 17 is provided with a heat insulation layer. By setting the heat insulation layer, the influence of the temperature inside the incinerator 17 on the auxiliary fuel in the fuel pipeline 6 can be reduced.

[0033] In order to increase the heat exchange area between the combustion chamber 4 and the evaporation chamber 8 and to collect the gasified waste liquid, the cross-sectional area of ​​the combustion chamber 4 gradually expands from the top to the bottom. Specifically, the combustion chamber 4 is made of a heat-conducting material to facilitate heat transfer. Preferably, the combustion chamber 4 is conical.

[0034] In some embodiments, an air supply pipe 11 is provided at the bottom of the combustion chamber 4, and an air supply fan 10 is connected to the air inlet end of the air supply pipe 11. Air is supplied to the combustion chamber 4 by the air supply fan 10 to provide oxygen for the combustion of gasified waste liquid and promote combustion. Preferably, the air supply pipe 11 and the gas pipe 16 are connected to the gas burner 15 through a three-way pipe to premix the air and gas so that the gas can be fully combusted; when combustion is not required, the gas valve on the gas pipe 16 is closed, and air is only supplied through the air supply pipe 11.

[0035] In some embodiments, an asbestos mesh 21 is provided above the exhaust port 7, and the asbestos mesh 21 is fixedly connected to the inside of the combustion chamber 4. As a heat-conducting material, the asbestos mesh 21 has good high-temperature resistance. By dispersing and homogenizing heat, it makes the heat more evenly distributed inside the combustion chamber 4. The uniform distribution of heat in the combustion chamber helps to reduce hot and cold spots, thereby improving incineration efficiency and ensuring that the gasified waste liquid can be fully burned.

[0036] To prevent the gasification waste liquid from being discharged from the inlet pipe 14, a U-shaped tube 13 is provided on the inlet pipe 14. The organic waste liquid is retained in the U-shaped tube 13 to seal the inlet pipe 14. To facilitate control of the inlet flow rate, a flow valve 12 is provided on the inlet pipe 14.

[0037] To facilitate determining whether the combustion chamber 4 has reached the temperature required for complete combustion and gasification of the waste liquid, a temperature sensor 3 is provided inside the combustion chamber 4 to monitor the internal temperature. Preferably, the temperature sensor 3 is a thermocouple temperature sensor.

[0038] In some embodiments, a heat exchanger 18 is also included, with the exhaust pipe 1 and the air supply pipe 11 respectively connected to two different flow channels of the heat exchanger 18; the flue gas outlet of the heat exchanger 18 is connected to a waste gas treatment device 19, and the exhaust port of the waste gas treatment device 19 is equipped with an online waste gas detection device 20. By setting up the heat exchanger 18, the waste heat of the flue gas is used to preheat the incoming air, reducing heat loss in the incinerator 17 and cooling the flue gas. The waste gas is purified by the waste gas treatment device 19, and the treated waste gas is detected by the online waste gas detection device 20 to determine whether the waste treatment meets the standards. The waste gas treatment device 19 and the online waste gas detection device 20 are configured according to the organic waste liquid being incinerated, and both use existing equipment.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An organic waste liquid harmless treatment furnace, characterized in that, include: Combustion chamber (4), with a gas burner (15) at the bottom and a flue pipe (1) connected to the top of the combustion chamber (4). Several auxiliary fuel nozzles (5) are provided in the middle of the combustion chamber (4). Evaporation chamber (8) is sleeved on the outside of combustion chamber (4). The bottom of the evaporation chamber (8) is provided with an electric heating module (9), and the top of the evaporation chamber (8) is connected to a liquid inlet pipe (14). The combustion chamber (4) has several exhaust holes (7) in the middle along its circumference, and the combustion chamber (4) and the evaporation chamber (8) are connected through the exhaust holes (7).

2. The organic waste liquid harmless treatment furnace according to claim 1, characterized in that: The auxiliary fuel nozzle (5) is connected to the fuel pipeline (6), and the outer side of the fuel pipeline (6) located inside the incinerator (17) is provided with a heat insulation layer.

3. The organic waste liquid harmless treatment furnace according to claim 1, characterized in that: The cross-sectional area of ​​the combustion chamber (4) gradually increases from top to bottom.

4. The organic waste liquid harmless treatment furnace according to claim 1, characterized in that: The bottom end of the combustion chamber (4) is provided with an air supply pipe (11), and the air supply pipe (11) is connected to a blower (10).

5. The organic waste liquid harmless treatment furnace according to claim 1, characterized in that: An asbestos mesh (21) is provided above the exhaust port (7), and the asbestos mesh (21) is fixedly connected to the inside of the combustion chamber (4).

6. The organic waste liquid harmless treatment furnace according to claim 1, characterized in that: The inlet pipe (14) is equipped with a flow valve (12) and a U-shaped pipe (13).

7. The organic waste liquid harmless treatment furnace according to claim 1, characterized in that: The combustion chamber (4) is provided with a temperature sensor (3) for monitoring the internal temperature of the combustion chamber (4).

8. The organic waste liquid harmless treatment furnace according to claim 1, characterized in that: It also includes a heat exchanger (18), wherein the exhaust pipe (1) and the air supply pipe (11) are respectively connected to two different flow channels of the heat exchanger (18).

9. The organic waste liquid harmless treatment furnace according to claim 8, characterized in that: The flue gas outlet of the heat exchanger (18) is connected to a waste gas treatment device (19), and the exhaust port of the waste gas treatment device (19) is equipped with an online waste gas detection device (20).

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