CN204637849U - A kind ofly utilize waste incineration to be separated and reclaim the device of carbon dioxide and nitrogen - Google Patents

Abstract

The utility model relates to a device for separating and recovering carbon dioxide and nitrogen by using garbage incineration, comprising a drainage pipe, a dust removal device, a heat exchanger, a biochemical treatment tank, a drying device, an air guide pipe and a low-temperature liquefaction device, wherein one end of the drainage pipe is connected to the garbage incinerator The flue of the furnace is connected, and the other end is connected with the heat exchanger, and a dust removal device is installed between the drainage pipe and the flue of the waste incinerator and the heat exchanger. The drying device is also connected to the low-temperature liquefaction device through an air duct. The low-temperature liquefaction device includes at least one carbon dioxide low-temperature liquefaction chamber and at least one nitrogen low-temperature liquefaction chamber. The utility model has the advantages of simple structure, high gas separation efficiency and high purity of the gas after separation, and at the same time, it can effectively purify the tail gas after garbage incineration to avoid secondary pollution caused by the tail gas.

Description

A device that uses waste incineration to separate and recover carbon dioxide and nitrogen

technical field

The utility model relates to a device for separating and recovering carbon dioxide and nitrogen by using garbage incineration, and belongs to the technical field of garbage incineration tail gas treatment equipment.

Background technique

At present, in the process of incinerating power generation or incineration treatment of waste, on the one hand, a large amount of dust will be produced when the waste is incinerated and diffused into the air with the combustion tail gas; The content of inert gas is also high, and directly diffuses into the air with the tail gas, thereby causing serious pollution to the air, and the carbon dioxide and nitrogen oxides in the tail gas are used in industry, agriculture and daily life. Therefore, how to effectively quality waste incineration tail gas on the one hand, and separate carbon dioxide and nitrogen in the tail gas on the other hand has become an important research direction for improving the recycling of waste incineration resources and reducing waste incineration pollution.

Utility model content

Aiming at the deficiencies in the prior art, the utility model provides a device for separating and recovering carbon dioxide and nitrogen by using garbage incineration. This type of device has a simple structure, high gas separation efficiency, and high purity of the separated gas. The tail gas after garbage incineration is effectively purified to avoid secondary pollution caused by the tail gas, so that while improving the resource recovery and utilization rate in the process of garbage incineration, it also effectively solves the tail gas pollution caused by garbage incineration.

In order to achieve the above object, the utility model is realized through the following technical solutions:

A device for separating and recovering carbon dioxide and nitrogen by using garbage incineration, including a drainage pipe, a dust removal device, a heat exchanger, a biochemical treatment tank, a drying device, an air guide pipe and a low-temperature liquefaction device, wherein one end of the drainage pipe is connected to the flue of the garbage incinerator , the other end communicates with the heat exchanger, and a dust removal device is installed between the drainage pipe, the flue of the waste incinerator and the heat exchanger. The air duct is connected with the low-temperature liquefaction device. The low-temperature liquefaction device includes at least one carbon dioxide low-temperature liquefaction chamber and at least one nitrogen low-temperature liquefaction chamber, and the carbon dioxide low-temperature liquefaction chamber is connected in series with the nitrogen low-temperature liquefaction chamber. Carbon dioxide collection tank and nitrogen collection tank.

Further, the dust removal device is an electrostatic dust removal device or a water mist dust removal device.

Further, a thermoelectric power generation device is additionally provided on the heat exchanger.

The new type has simple structure, high gas separation efficiency, and high purity of gas after separation. At the same time, it can effectively purify the tail gas after waste incineration, avoiding secondary pollution caused by tail gas, so as to improve the utilization rate of resource recovery in the process of waste incineration. At the same time, it effectively solves the tail gas pollution caused by garbage incineration.

Description of drawings

The utility model is described in detail below in conjunction with accompanying drawing and specific embodiment;

Figure 1 is a schematic diagram of the new structure.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific embodiments.

A device for separating and recovering carbon dioxide and nitrogen by waste incineration as shown in Figure 1, including a drainage pipe 1, a dust removal device 2, a heat exchanger 3, a biochemical treatment tank 4, a drying device 5, an air duct 6 and a low-temperature liquefaction device , wherein one end of the drainage pipe 1 is communicated with the waste incinerator flue 7, and the other end is communicated with the heat exchanger 3, and a dust removal device 2 is arranged between the drainage pipe 1, the waste incinerator flue 7 and the heat exchanger 3, and the biochemical treatment The tank 4 is in communication with the heat exchanger 3 and the drying device 5 through the air duct 6, and the drying device 5 is in communication with the low-temperature liquefaction device through the air duct 6. The low-temperature liquefaction device includes at least one carbon dioxide low-temperature liquefaction chamber 8 and at least one nitrogen low-temperature liquefaction chamber. The carbon dioxide low-temperature liquefaction chamber 8 and the nitrogen low-temperature liquefaction chamber 9 are connected in series, and the carbon dioxide low-temperature liquefaction chamber 8 and the nitrogen low-temperature liquefaction chamber 9 are provided with a carbon dioxide collection tank 10 and a nitrogen collection tank 11 respectively.

In this embodiment, the dust removal device 2 is an electrostatic dust removal device or a water mist dust removal device.

In this embodiment, the heat exchanger 3 is additionally provided with a thermoelectric power generation device 12 .

The new type has simple structure, high gas separation efficiency, and high purity of gas after separation. At the same time, it can effectively purify the tail gas after waste incineration, avoiding secondary pollution caused by tail gas, so as to improve the utilization rate of resource recovery in the process of waste incineration. At the same time, it effectively solves the tail gas pollution caused by garbage incineration.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (3)

1. A device that utilizes garbage incineration to separate and reclaim carbon dioxide and nitrogen, characterized in that: the device that utilizes garbage incineration to separate and reclaim carbon dioxide and nitrogen includes a drainage tube, a dust removal device, a heat exchanger, a biochemical treatment tank, a drying device, air guide pipe and low-temperature liquefaction device, wherein one end of the drainage pipe is connected with the flue of the garbage incinerator, and the other end is connected with the heat exchanger, and a dust removal device is installed between the drainage pipe, the flue of the garbage incinerator and the heat exchanger. device, the biochemical treatment tank communicates with the heat exchanger and the drying device respectively through the air duct, and the drying device communicates with the low-temperature liquefaction device through the air duct, and the low-temperature liquefaction device includes at least one carbon dioxide low-temperature liquefaction chamber and at least one nitrogen low-temperature liquefaction chamber, and the carbon dioxide low-temperature liquefaction chamber is connected in series with the nitrogen low-temperature liquefaction chamber, and the carbon dioxide low-temperature liquefaction chamber and the nitrogen low-temperature liquefaction chamber are respectively provided with a carbon dioxide collection tank and a nitrogen collection tank. 2. A device for separating and recovering carbon dioxide and nitrogen by garbage incineration according to claim 1, characterized in that the dust removal device is an electrostatic dust removal device or a water mist dust removal device. 3. A device for separating and recovering carbon dioxide and nitrogen by waste incineration according to claim 1, characterized in that a thermoelectric power generation device is additionally provided on the heat exchanger.