WO2022237094A1

WO2022237094A1 - Sludge and organic garbage mixed resourceful treatment system

Info

Publication number: WO2022237094A1
Application number: PCT/CN2021/129232
Authority: WO
Inventors: 曾祥; 王光娜; 陈雅璋; 陈文光; 古慧航; 叶广运
Original assignee: 广东美景环境科技有限公司
Priority date: 2021-05-14
Filing date: 2021-11-08
Publication date: 2022-11-17
Also published as: CN215336333U

Abstract

A sludge and organic garbage mixed resourceful treatment system, comprising a material mixing device (1), a gasification device (2), and a drying device (3). The material mixing device (1) comprises a material mixing bin (11), and the material mixing bin (11) is used for mixing sludge and organic garbage; the gasification device (2) comprises an anaerobic reaction bin (21), and a feeding end of the anaerobic reaction bin (21) is communicated with a discharging end of the material mixing bin (11); the drying device (3) comprises an incinerator (31), a feeding end of the incinerator (31) is communicated with a discharging end of the anaerobic reaction bin (21), and a gas inlet end of the incinerator (31) is communicated with a gas outlet end of the anaerobic reaction bin (21). According to the system, an organic matter disposal unit and a sludge disposal unit in organic garbage are combined, so that comprehensive disposal of organic matters is achieved; moreover, biogas generated by an anaerobic reaction is used for providing fuel and power for the incinerator (31) for combustion and drying, energy required by the system during operation is internally recycled, energy consumption is reduced, resource waste is reduced, and the utilization rate is increased.

Description

A mixed resource treatment system for sludge and organic waste

technical field

The present application relates to the technical field of solid waste treatment, in particular to a mixed resource treatment system for sludge and organic waste.

Background technique

With the construction of cities and the development of economy in our country, the output of sludge is increasing continuously, and the organic waste is also increasing day by day, which has become a major problem that plagues economic development and environmental governance. Because the pollutants in the sewage are enriched in the sludge, in addition to containing ash and a large amount of water, it also contains a large amount of organic matter, pathogenic microorganisms, bacteria, parasite eggs, volatile substances, heavy metals, salts, and plant nutrients and other pollutants , so the treatment of sludge needs to consume a lot of external energy, and the treatment cost is also high. Similarly, because organic waste is rich in nitrogen, phosphorus, potassium and other components, and sometimes contains pathogenic microorganisms, it is easy to cause secondary pollution and waste of resources to the soil and the atmosphere during the process of processing organic waste. Therefore, how to realize the resource recycling of sludge and organic waste is an important issue in environmental governance.

application content

Aiming at the deficiencies of the prior art, the present application provides a mixed resource treatment system for sludge and organic waste.

A sludge and organic waste mixed resource treatment system disclosed in this application includes:

A mixing device, which includes a mixing bin, which is used for mixing sludge and organic waste;

A gasification device, which includes an anaerobic reaction chamber, the feed end of the anaerobic reaction chamber communicates with the discharge end of the mixing chamber; and

The drying device includes an incinerator, the feed end of the incinerator communicates with the discharge end of the anaerobic reaction chamber, and the inlet end of the incinerator communicates with the gas outlet of the anaerobic reaction chamber.

According to an embodiment of the present application, the gasification device also includes a gas storage bin, the air inlet of the gas storage bin communicates with the gas outlet of the anaerobic reaction bin, and the gas outlet of the gas storage bin communicates with the inlet of the incinerator.

According to an embodiment of the present application, the mixing device further includes a sludge hopper and an organic waste hopper, and the discharge end of the sludge hopper and the discharge end of the organic waste hopper are both connected to the feed end of the mixing bin.

According to one embodiment of the present application, both the sludge hopper and the organic waste hopper have weighing devices.

According to an embodiment of the present application, it also includes a tail gas and tail water treatment device, the tail gas and tail water treatment device includes a tail gas treatment mechanism and a tail water treatment mechanism, the tail gas treatment mechanism is connected to the tail gas discharge end of the incinerator, and the tail water treatment mechanism is connected to the incinerator The tail water discharge end of the furnace.

According to an embodiment of the present application, the tail water treatment mechanism includes a cooling tower, a tail water collection tank and a tail water processor, the water inlet end of the cooling tower is connected with the tail water discharge end of the The water inlet end of the collection tank is connected, and the water outlet end of the tail water collection tank is connected with the water inlet end of the tail water processor.

According to an embodiment of the present application, the tail gas treatment mechanism is provided with a tail gas emission concentration monitor.

According to an embodiment of the present application, a collecting device is further included, and the feeding end of the collecting device communicates with the discharging end of the incinerator.

Compared with the prior art, a sludge and organic waste mixed resource treatment system of the present application has the following advantages:

The sludge and organic waste mixed resource treatment system of this application combines the organic matter disposal unit in the organic waste with the sludge disposal unit through technical means to achieve the joint disposal of sludge and organic waste and realize the comprehensive disposal of organic matter; at the same time , use the biogas produced by the anaerobic reaction of the mixture of sludge and organic waste to provide fuel and power for the incinerator to burn and dry the mixture of sludge and organic waste, and the energy required by the system during operation is internally circulated Use, reduce energy consumption, reduce waste of resources, and increase utilization.

Description of drawings

The accompanying drawings described here are used to provide a further understanding of the application and constitute a part of the application. The schematic embodiments of the application and their descriptions are used to explain the application and do not constitute improper limitations to the application. In the attached picture:

Fig. 1 is a schematic structural view of the mixed resource treatment system of sludge and organic waste in the embodiment.

Explanation of reference signs:

1. Mixing device; 11. Mixing bin; 12. Sludge hopper; 13. Organic waste hopper; 2. Gasification device; 21. Anaerobic reaction bin; 22. Gas storage bin; 3. Drying device; 31 , incinerator; 311, blower; 4, collection device; 41, collection bin; 5, tail gas and tail water treatment device; 51, tail gas treatment mechanism; 52, tail water treatment mechanism; 521, cooling tower; 522, tail water collection pool; 523, tail water processor.

Detailed ways

A number of implementations of the present application will be disclosed in the following figures. For the sake of clarity, many practical details will be described together in the following description. It should be understood, however, that these practical details should not be used to limit the application. That is to say, in some embodiments of the present application, these practical details are unnecessary. In addition, for the sake of simplifying the drawings, some well-known and commonly used structures and components will be shown in a simple schematic manner in the drawings.

In addition, in this application, the descriptions involving "first", "second" and so on are only for the purpose of description, not specifically referring to the sequence or order, nor are they used to limit the application, but only for the purpose of distinguishing the following The components or operations described by the same technical terms are only used, but should not be understood as indicating or implying their relative importance or implying the number of indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include at least one of these features. In addition, the technical solutions of the various embodiments can be combined with each other, but it must be based on the realization of those skilled in the art. When the combination of technical solutions is contradictory or cannot be realized, it should be considered that the combination of technical solutions does not exist , nor within the scope of protection required by the present application.

Referring to FIG. 1 , a sludge and organic waste mixed resource treatment system includes a mixing device 1 , a gasification device 2 , a drying device 3 , a collection device 4 and a tail gas and tail water treatment device 5 . The mixing device 1 mixes the sludge and organic waste and outputs the mixture of the two, the gasification device 2 receives the mixture of sludge and organic waste, the sludge and organic waste mixture undergoes anaerobic reaction and produces biogas, and the drying device 3 receives The mixture of sludge and organic waste after anaerobic reaction, and use biogas to burn and dry the mixture of sludge and organic waste. The collection device 4 collects the mixture of burned and dried sludge and organic waste. The processing device 5 treats the tail gas and tail water generated by the drying device 3 during the combustion and drying process.

The mixing device 1 includes a mixing bin 11, a sludge hopper 12 and an organic waste hopper 13. The mixing bin 11 is used for mixing and transporting sludge and organic waste, and the sludge hopper 12 is used for storing and transporting sludge. The organic waste hopper 13 is used for storage and delivery of organic waste. The mixing bin 11 has an agitator, and the discharge end of the sludge hopper 12 and the discharge end of the organic waste hopper 13 are connected to the feeding end of the mixing bin 11 through a conveyor belt.

Preferably, both the sludge hopper 12 and the organic waste hopper 13 have weighing devices to ensure the weight of the materials output to the mixing bin 11 each time.

The gasification device 2 includes an anaerobic reaction bin 21 and a gas storage bin 22. The anaerobic reaction bin 21 is used for the anaerobic reaction of the mixture of sludge and organic waste, and the gas storage bin 22 is used for receiving and storing the biogas produced by the anaerobic reaction. . The feed end of the anaerobic reaction bin 21 is connected with the discharge end of the mixing bin 11 through a conveyor belt, and the gas outlet end of the anaerobic reaction bin 21 is connected with the inlet end of the gas storage bin 22 through a pipeline.

The drying device 3 includes an incinerator 31, which is used for burning and drying the mixture of sludge and organic waste. The incinerator 31 has a blower 311, and the blower 311 sends air into the furnace for drying and oxygenation. The feed end of the incinerator 31 communicates with the discharge end of the anaerobic reaction chamber 21 , and the inlet end of the incinerator 31 communicates with the gas outlet end of the anaerobic reaction chamber 21 .

The collection device 4 includes a collection bin 41 for collecting the mixture of burned and dried sludge and organic waste. The feed end of the collection bin 41 communicates with the discharge end of the incinerator 31 .

The tail gas and tail water treatment device 5 includes a tail gas treatment unit 51 and a tail water treatment unit 52 , the tail gas treatment unit 51 is used for treating the tail gas of the incinerator 31 , and the tail water treatment unit 52 is used for treating the tail water of the incinerator 31 . The tail gas treatment mechanism 51 is connected to the tail gas discharge end of the incinerator 31 , and the tail water treatment mechanism 52 is connected to the tail water discharge end of the incinerator 31 . Wherein, the tail gas treatment mechanism 51 has a tail gas emission concentration monitor. The tail water treatment mechanism 52 includes a cooling tower 521, a tail water collection tank 522, and a tail water processor 523. The water inlet end of the cooling tower 521 is connected with the tail water discharge end of the incinerator 31, and the water outlet end of the cooling tower 521 is connected with the tail water collector. The water inlet end of the pool 522 is connected, and the water outlet end of the tail water collection pool 522 is connected with the water inlet end of the tail water processor 523 .

The system works as follows:

First, the sludge hopper 12 transports a certain amount of sludge to the mixing bin 11, and the organic waste hopper 13 transports a certain amount of organic waste to the mixing bin 11, and the mixing bin 11 mixes the sludge and organic waste into sludge and organic waste. mixture;

Next, the mixing bin 11 transports a certain amount of sludge and organic waste mixture to the anaerobic reaction bin 21, and the sludge and organic waste mixture undergoes anaerobic reaction in the closed anaerobic reaction bin 21 to generate biogas, and the biogas flows to the gas storage bin. 22 transported and stored by the gas storage bin 22;

After the anaerobic reaction is completed, the anaerobic reaction bin 21 transports the sludge and organic waste mixture after the anaerobic reaction to the incinerator 31, and the gas storage bin 22 continuously transports biogas to the incinerator 31, and ignites the biogas to treat the sewage in the incinerator 31. The mixture of mud and organic waste is burned and dried. In the process of burning and drying, the tail gas treatment mechanism 51 collects the tail gas of the incinerator 31 and treats it, and the tail water treatment mechanism 52 collects the tail water of the incinerator 31 and treats it. process;

Finally, the incinerator 31 transports the sludge and organic waste mixture that has been burned and dried to the collection bin 41.

This system uses the biogas produced by the anaerobic reaction of the mixture of sludge and organic waste to provide fuel and power for the incinerator to burn and dry the mixture of sludge and organic waste to reduce the moisture content of sludge and organic waste. The energy consumption of the drying process is greatly reduced, and the ash content of the biochar after drying and the volume and quality of the mixture can be reduced. The heavy metals are melted and fixed in the biochar, and the microorganisms and insect eggs in the sludge and organic waste are Kill, and contain a lot of trace elements, can be used as soil improver, nutrient base, etc. It realizes the internal energy cycle during the operation of the system, greatly reduces the external energy supply, reduces the processing cost and energy consumption; and the products produced by the system have high added value, and realize the harmless and efficient treatment of sludge and organic waste. The co-processing of reduction and recycling provides a new way for municipal organic waste and sludge disposal.

To sum up, this system combines the organic matter disposal unit and the sludge disposal unit in organic waste through technical means to achieve the joint disposal of sludge and organic waste and the comprehensive disposal of organic matter. The internal recycling of energy can significantly reduce energy consumption, reduce waste of resources, increase utilization rate, and the added value of the products of the treatment system is high, which can be used for soil improvement, etc.

The above description is only the embodiment of the present application, and is not intended to limit the present application. For those skilled in the art, various modifications and changes may occur in this application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.

Claims

A mixed resource treatment system for sludge and organic waste, characterized in that it includes:

A mixing device, which includes a mixing bin, which is used for mixing sludge and organic waste;

A gasification device, which includes an anaerobic reaction bin, the feed end of the anaerobic reaction bin communicates with the discharge end of the mixing bin; and

The drying device includes an incinerator, the feed end of the incinerator communicates with the discharge end of the anaerobic reaction chamber, and the inlet end of the incinerator communicates with the gas outlet of the anaerobic reaction chamber.
The mixed resource treatment system of sludge and organic waste according to claim 1, characterized in that, the gasification device also includes an air storage bin, the air inlet of the air storage bin is connected to the anaerobic reaction bin The gas outlet is connected, and the gas outlet of the gas storage bin is connected with the inlet of the incinerator.
The sludge and organic waste mixed resource treatment system according to claim 1, characterized in that, the mixing device also includes a sludge hopper and an organic waste hopper, the discharge end of the sludge hopper and the organic waste The discharge ends of the garbage hoppers are all in communication with the feed ends of the mixing bin.
The mixed resource treatment system of sludge and organic waste according to claim 3, wherein both the sludge hopper and the organic waste hopper have weighing devices.
The mixed resource treatment system of sludge and organic waste according to claim 1, characterized in that it also includes a tail gas and tail water treatment device, and the tail gas and tail water treatment device includes a tail gas treatment mechanism and a tail water treatment mechanism, and the tail gas The treatment mechanism is connected to the tail gas discharge end of the incinerator, and the tail water treatment mechanism is connected to the tail water discharge end of the incinerator.
The mixed resource treatment system of sludge and organic waste according to claim 5, wherein the tail water treatment mechanism includes a cooling tower, a tail water collection tank and a tail water processor, and the water inlet end of the cooling tower It is connected with the tail water discharge end of the incinerator, the water outlet end of the cooling tower is connected with the water inlet end of the tail water collection tank, and the water outlet end of the tail water collection tank is connected with the tail water treatment inlet. The water end is connected.
The mixed resource treatment system of sludge and organic waste according to claim 5, wherein the tail gas treatment mechanism is provided with a tail gas discharge concentration monitor.
The mixed resource treatment system of sludge and organic waste according to claim 1, further comprising a collection device, the feed end of the collection device communicates with the discharge end of the incinerator.