CN103951153A - Method and system for preparing carbon adsorbent material by mixing waste plastics with sludge - Google Patents

Abstract

The invention discloses a method and system for preparing carbon adsorption materials by mixing waste plastics and sludge. The crushed waste plastics and dried sludge are evenly mixed in a certain proportion, and the mixed materials are carbonized and activated to prepare carbon. Adsorption material: The pyrolysis gas generated during the carbonization and activation process is burned as an external heat source for carbonization and activation, and the flue gas generated by the combustion is used for drying and dehydration of sludge, which solves the energy self-sufficiency problem in the process of preparing carbon adsorption materials by pyrolysis of sludge. The invention has the advantages of introducing municipal solid waste into the technical field of preparing carbon materials from sludge, using waste plastics to improve the performance index of sludge pyrolysis carbon, and at the same time taking advantage of the high calorific value of waste plastics to realize high value-added utilization of waste plastics , fully embodies the concept of clean production and circular economy, and has remarkable benefits in energy saving and environmental protection.

Description

A method and system for preparing carbon adsorption materials by mixing waste plastics and sludge

technical field

The invention discloses a method and a system for preparing carbon adsorption materials by mixing waste plastics and sludge, and belongs to the field of comprehensive utilization of municipal solid waste and sludge resources according to the International Patent Classification (IPC).

Background technique

With the rapid development of my country's social economy and urbanization process, the scale of urban sewage treatment plants has continued to expand, and the amount of sludge produced has also increased significantly. The characteristics of municipal sludge in my country are high moisture content, low calorific value of sludge components, and a large amount of odor and other harmful pollutants are easily produced during the treatment process. Therefore, how to dispose of sludge from sewage plants at low cost and efficiently is a major problem facing the development of cities in our country.

The traditional methods of sludge disposal are ocean disposal, landfill, composting and incineration.

(1) Marine disposal method: Throwing sludge directly into the sea will endanger the marine ecosystem and cause deterioration of the marine environment. The U.S. Environmental Protection Agency completely banned the marine disposal of sludge in 1991; the Chinese government promised not to dispose of industrial waste and municipal sludge at sea from February 20, 1994; the European Union banned dumping sludge into water bodies after December 31, 1998 In the same year, the International Convention Organization passed a resolution prohibiting the discharge of sludge into the sea.

(2) Landfill method: Sludge landfill occupies a large amount of land, which leads to the reduction of usable land in the suburbs of the city, and even leads to permanent abandonment; the high moisture content and high viscosity of sludge not only make the landfill operation difficult, but also make the landfill body prone to occurrence Deformation and landslides become "swamps", causing potential safety hazards; sludge is rich in harmful microorganisms such as pathogens and viruses, and is highly polluting, which will affect the ecological "food chain" and endanger the safety of residents. Europe began to levy landfill taxes in 2000 and banned all organic waste landfills from 2005.

(3) Composting method: Add a certain proportion of leavening agents and conditioning agents such as straw, straw, wood chips or domestic garbage to the sludge, and use the microorganisms of the sludge to ferment and transform it into humus-like substances as crop fertilizers. The pathogens of the products after composting treatment may still survive, the composting efficiency and nutrients are low, heavy metals and toxic organic substances cannot be controlled, and the application effect is not good.

(4) Incineration method: The incineration method incinerates the sludge in an incinerator to carbonize all organic matter and kill various pathogens at the same time. The final product is inorganic ash with a solid content of more than 99%. In the combustion process of sludge, there are disadvantages such as low calorific value, high fuel consumption, heavy pollution, complicated operation and management, large investment and high operating costs, which make the incineration method unable to be applied on a large scale.

To sum up, with the modern expansion and development of cities, the efficiency of sewage treatment has improved, and the output of sewage sludge has also increased significantly. Traditional sludge disposal methods can no longer meet the needs of social development, and it is imperative to develop new sludge disposal technologies.

Activated carbon adsorption material has a very unique pore structure and surface functional groups, has acid resistance, alkali resistance, heat resistance and other properties, good chemical stability, strong adsorption capacity, and convenient regeneration. The demand for activated carbon adsorption materials is showing an increasing trend year by year with the development of society and the improvement of people's living standards. However, the cost of raw materials for preparing activated carbon adsorption materials is high, and the energy consumption is large, which seriously restricts its further development and application. Sludge has a high hydrocarbon content and a lot of organic matter components. As a raw material for preparing carbon adsorption materials, activated carbon with good performance can be prepared through carbonization and activation treatment at a certain temperature. The advantages of this method are: (1) preparing sludge activated carbon instead of commercial activated carbon can save raw material resources such as wood and coal, and reduce the production cost of activated carbon; The efficient resource utilization of sewage plant sludge provides a new way.

For sludge treatment and production of sludge carbon adsorption materials, some researchers have carried out related explorations. CN103396815A discloses a method for preparing carbon materials from sludge. After the sludge is dehydrated by hydrothermal method, it is used for anaerobic fermentation to generate biogas or to produce biochar; this method needs to consume external energy, which increases the cost of sludge treatment . CN102337142A discloses a method for preparing sludge charcoal using a heat-conducting oil furnace heat-conducting hollow paddle vaporization reactor and a hollow paddle carbonization reactor. The produced sludge charcoal is returned to the boiler for combustion and heat supply to the vaporization reactor and carbonization reactor; CN102358861A provides a method of deodorizing and sterilizing sludge and biomass fuel with coal powder to prepare carbon-containing fuel for combustion; these two methods are limited to sludge reduction treatment, using low value. CN102071033A discloses a sludge thermochemical charcoal disposal method. The sludge is heated to 170°C-250°C, and gases such as carbon monoxide and carbon dioxide are continuously injected under fully enclosed heat preservation conditions to make the organic matter, protein, fiber, Under the joint action of mechanical force and temperature, the bacterial micelles are concentrated into thermoformed rods (or balls) with a moisture content of ≤9%, which are used for fuel combustion; High standard.

CN101974359A proposes to stir and mix recycled water, sulfuric acid and hydrogen peroxide with sludge and heat it to 60°C-95°C, after 10-80min of activation pretreatment, wash with water and use lime to adjust the alkalinity, and finally obtain pyrolytic charcoal through pyrolysis; CN101423212A discloses a method for preparing sludge activated carbon by using sludge. The dewatered sludge is dried, and then semi-carbonized distillation is performed in a semi-carbonized gasification furnace, and the obtained sludge semi-coke is mixed with a binder to produce Finally, activate in an activation furnace to obtain activated carbon materials; CN1644495A discloses a method for preparing activated carbon from sludge in urban sewage treatment plants, drying the sludge to a moisture content of 10%, and activating and soaking the sludge with ZnCl2 solution. Then dry and add carburant, and finally carbonize and activate at 500-800°C to obtain activated carbon. Japanese patent JP7242408 (A) proposes a method for preparing activated carbon from sewage treatment plant sludge. The dried sludge is carbonized at 700-1200°C and blown into an activated atmosphere at a certain rate to obtain activated carbon. Japanese patent JP9241015 (A) proposes a method and equipment system for preparing activated carbon from sewage sludge. The dried sludge particles of 3-15mm made by a granulator are carbonized at a temperature of 500-800°C, and the carbonized particles are then regenerated. Enter the activation zone at 800~850°C for activation to obtain sludge activated carbon, and the gas generated by carbonization is used as active gas for activation. The above-mentioned patents mainly obtain sludge carbon adsorption materials with good performance by adjusting the carbonization activation temperature, atmosphere and activator, etc., but none of them can solve the problems of high energy consumption and high cost of raw materials in the production process, nor do they involve the use of waste plastics and other garbage Mixed with sludge and pyrolyzed to prepare carbon adsorption material. the

Based on a comprehensive analysis of the research status at home and abroad, there is no relevant report on the introduction of mixed pyrolysis of waste plastics and sludge in municipal solid waste to prepare carbon adsorption materials.

Contents of the invention

Aiming at the limitations of the existing sludge pyrolysis technology for preparing carbon adsorption materials, such as high energy consumption, inability to self-supply, high cost of raw materials, and poor product adsorption performance indicators, the present invention provides a method for preparing carbon adsorption materials by mixing waste plastics and sludge. method, and the pyrolytic carbon prepared by it has high adsorption performance index.

Another purpose of the present invention is to greatly increase the calorific value of the pyrolysis gas after adding waste plastics, so that the heat required by the entire process system can be self-supplied, energy-saving and environmentally friendly.

The invention also provides a system for preparing carbon adsorption materials by mixing waste plastics and sludge. and system. The basic principle is: waste plastics, as hydrocarbons with high volatile content, interact strongly with sludge in the overlapping pyrolysis temperature range to improve the distribution of functional groups and pore structure on the surface of sludge pyrolysis carbon. Thereby improving the pyrolytic carbon adsorption performance index. In addition, due to

To achieve the above object, the present invention is achieved through the following technical solutions:

A method for preparing carbon adsorption materials by mixing waste plastics and sludge, the realization steps comprising:

(1) Waste plastics in municipal solid waste are shredded and shredded first;

(2) Dry the sludge after mechanical dehydration, and then evenly mix it with waste plastics in a certain proportion, wherein the weight ratio of waste plastics to the total material is controlled at 5-50%;

(3) The mixed material is sent to the carbonization device for carbonization, and the obtained pyrolytic carbon is sent to the activation device for activation, and finally the sludge carbon adsorption material is obtained;

The pyrolysis gas generated during the carbonization and activation process in step (3) is burned as an external heat source for carbonization and activation, and the flue gas generated after combustion is used for drying and dehydration of sludge;

The waste plastics in step (1) are waste plastics in municipal solid waste, especially suitable for mixed waste plastics that are difficult to handle in municipal solid waste, and the particle size range of waste plastics after crushing is controlled to <30mm;

The sludge in step (2) is the sludge produced by mechanical dehydration in the sewage plant, and the moisture content of the sludge <95%, wherein the sludge drying method can be direct drying or indirect drying, and the moisture content of the sludge after drying is controlled as <30%;

In step (3), the pyrolysis and carbonization temperature of the mixture of waste plastics and sludge is controlled at 500°C-700°C, and the activation temperature is controlled at 700°C-1000°C.

A system for preparing carbon adsorption materials by mixing waste plastics and sludge, mainly composed of a conveying device, a drying device, a shredding device, a crushing device, a quantitative feeding device, a mixing device, a carbonization device, an activation device and a gas treatment device, The outlet of 1# conveying device is connected with the inlet of shredding device, the outlet of shredding device is connected with the inlet of crushing device, the outlet of crushing device is connected with the inlet of 3# conveying device, the outlet of 3# conveying device is connected with the inlet of 1# buffer bin, and the outlet of 1# buffer The outlet of the silo is connected to the inlet of the 1# quantitative feeding device, the outlet of the 1# quantitative feeding device is connected to the inlet of the mixing device; the outlet of the 2# conveying device is connected to the inlet of the drying device, and the outlet of the sludge drying device is connected to the inlet of the 4# conveying device. The outlet of the 4# conveying device is connected to the inlet of the 2# buffer silo, the outlet of the 2# buffer silo is connected to the inlet of the 2# quantitative feeding device, the outlet of the 2# quantitative feeding device is connected to the inlet of the mixing device; the outlet of the mixing device is connected to the 5# conveying The inlet of the device is connected, the outlet of the 5# conveying device is connected with the inlet of the carbonization device, and the outlet of the carbonization device is connected with the inlet of the activation device.

Further, the pyrolysis gas produced by the carbonization device and the activation device is used for burning and heating the carbonization device and the activation device after being processed by the gas treatment device, wherein the carbonization device is a fixed bed type, a moving bed type or a rotary kiln type carbonization furnace, The activation device is a conventional activation furnace, and the gas treatment device is a dry or wet gas purification equipment with deacidification function; the flue gas generated by combustion enters the drying device.

Further, the drying device may be rotary drying equipment, hydrothermal dehydration equipment, fluidized drying equipment, vacuum drying equipment or disc drying equipment, etc.; the drying method may be direct drying or indirect drying;

Further, the 1# quantitative feeding device and the 2# quantitative feeding device are screw feeders, star feeders or vibrating feeders; the mixing devices are coulter type mixers, rake type mixer, tumble mixer or agitator mixer.

Further, the 1# conveying device is a belt conveyor or a plate conveyor; the 2# conveying device is a belt conveyor, a scraper conveyor, a bucket elevator, a zipper machine or a screw conveyor; the 3# conveying device is a belt conveyor Conveyor, screw conveyor or scraper conveyor; 4# conveying device and 5# conveying device can be belt conveyor, scraper conveyor, bucket elevator, zipper conveyor or screw conveyor; shredding device is plastic shredder ; The crushing device is a plastic shearing crusher.

The advantages of the present invention are:

(1) Fully realize the efficient utilization of waste plastic resources and energy in urban domestic waste, avoiding waste of resources caused by waste plastic landfills and environmental pollution caused by simple incineration;

(2) Give full play to the advantages of the high calorific value of waste plastics in municipal solid waste, burn the pyrolysis gas generated during the carbonization and activation process as an external heat source for carbonization and activation, and use the flue gas generated after combustion for sludge drying and dehydration, completely realizing The energy self-sufficiency in the whole process of the process fully embodies the concept of clean production and circular economy, and the energy saving and cost reduction are remarkable;

(3) Utilizing the characteristics of high carbon and hydrogen content of waste plastics, large volatile content, and overlapping with the sludge pyrolysis temperature range, it can be used as a pore-enhancing agent and recarburizer for sludge pyrolysis carbon to effectively improve the pores of sludge pyrolysis carbon Structural distribution and adsorption performance index, so as to improve its utilization value;

(4) Use waste plastics and sludge to prepare carbon adsorption materials by pyrolysis, introduce municipal solid waste into the field of carbon material preparation, turn waste into treasure, and the process is simple and practical, which greatly reduces the cost of preparing carbon adsorption materials from sludge and improves market competitiveness and broad application prospects.

Description of drawings

Fig. 1 is a process flow diagram of the present invention.

In the figure: 1. 1# conveying device, 2. shredding device, 3. crushing device, 4. 3# conveying device, 5. 1# buffer bin, 6. 1# quantitative feeding device, 7. 2# conveying Device, 8. drying device, 9. 4# conveying device, 10. 2# buffer bin, 11. 2# quantitative feeding device, 12. mixing device, 13. 5# conveying device, 14. carbonization device, 15. Activation unit, 16. Gas treatment unit.

Detailed ways

The present invention will be further described below in conjunction with accompanying drawing:

Embodiment: please refer to Fig. 1, a kind of method for preparing carbon adsorption material by mixing waste plastics and sludge, its realization step comprises:

(1) Waste plastics in municipal solid waste are shredded and shredded first;

(2) Dry the sludge after mechanical dehydration, and then evenly mix it with waste plastics in a certain proportion, wherein the weight ratio of waste plastics to the total material is controlled at 5-50%;

(3) The mixed material is sent to the carbonization device for carbonization, and the obtained pyrolytic carbon is sent to the activation device for activation, and finally the sludge carbon adsorption material is obtained;

(4) The pyrolysis gas generated during the carbonization and activation process is burned as an external heat source for carbonization and activation, and the flue gas generated after combustion is used for drying and dehydration of sludge.

The waste plastics in step (1) of the present invention are waste plastics in municipal solid waste, especially suitable for mixed waste plastics difficult to handle in municipal solid waste, and the particle size range of waste plastics after crushing is controlled to <30mm. The sludge in step (2) is the sludge produced by mechanical dehydration in the sewage plant, and the moisture content of the sludge <95%, wherein the sludge drying method can be direct drying or indirect drying, and the moisture content of the sludge after drying is controlled as <30%. In step (3), the pyrolysis and carbonization temperature of the mixture of waste plastics and sludge is controlled at 500°C-700°C, and the activation temperature is controlled at 700°C-1000°C.

An equipment system for preparing carbon adsorption materials by mixing waste plastics and sludge. The connection mode of the equipment is as follows: 1# conveying device 1 outlet is connected to shredding device 2 inlet, shredding device 2 outlet is connected to crushing device 3 inlet, crushing The outlet of device 3 is connected to the inlet of 3# conveying device 4, the outlet of 3# conveying device 4 is connected to the inlet of 1# buffer bin 5, the outlet of 1# buffer bin 5 is connected to the inlet of 1# quantitative feeding device 6, and the outlet of 1# quantitative feeding The outlet of feeding device 6 is connected to the inlet of mixing device 12; the outlet of 2# conveying device 7 is connected to the inlet of drying device 8; the outlet of sludge drying device 8 is connected to the inlet of 4# conveying device 9; the outlet of 4# conveying device 9 is connected to 2# buffer material The inlet of bin 10 is connected, the outlet of 2# buffer bin 10 is connected with the inlet of 2# quantitative feeding device 11, the outlet of 2# quantitative feeding device 11 is connected with the inlet of mixing device 12; the outlet of mixing device 12 is connected with the inlet of 5# conveying device 13 , The outlet of the 5# conveying device 13 is connected with the inlet of the carbonization device 14, and the outlet of the carbonization device 14 is connected with the inlet of the activation device 15. The pyrolysis gas generated by the carbonization device 14 and the activation device 15 is processed by the gas treatment device 16 and used to burn and heat the carbonization device 14 and the activation device 15 ; the flue gas generated by the combustion enters the drying device 8 . The drying device 8 can be rotary drying equipment, hydrothermal dehydration equipment, fluidized drying equipment, vacuum drying equipment or disc drying equipment, etc.; the drying method can be direct drying or indirect drying. 1# quantitative feeding device 6 and 2# quantitative feeding device 11 are screw feeders, star feeders or vibrating feeders. The mixing device 12 includes a plow mixer, a rake mixer, a drum mixer or an agitator mixer.

The system equipment device of the present invention is described as follows, and each following device all can be purchased directly in the market:

1. 1# conveying device is belt conveyor or plate conveyor

2. The shredding device is an ordinary plastic shredder

3. The crushing device is a plastic shearing crusher

4. 3# conveying device is belt conveyor, screw conveyor, scraper conveyor, etc.

5. 1# buffer silo, ordinary silo, the upper part is cylindrical, the lower part is cone-shaped or the upper part is square, and the lower part is pyramid-shaped.

6. 1# Quantitative feeding device is screw feeder, star feeder or vibrating feeder

7. 2# conveying device refers to belt conveyor, scraper conveyor, bucket elevator, zipper conveyor or screw conveyor;

8. The drying device is rotary drying equipment, hydrothermal dehydration equipment, fluidized drying equipment, vacuum drying equipment or disc drying equipment, etc.

9. 4# conveying device is belt conveyor, scraper conveyor, bucket elevator, zipper conveyor or screw conveyor;

10. 2# buffer silo, ordinary silo, the upper part is cylindrical, the lower part is cone-shaped or the upper part is square, and the lower part is pyramid-shaped;

11. 2# Quantitative feeding device is screw feeder, star feeder or vibrating feeder;

12. The mixing device is a plow mixer, rake mixer, drum mixer or stirring mixer;

13. 5# conveying device, belt conveyor, scraper conveyor, bucket elevator, zipper machine or screw conveyor;

14. The carbonization device is an ordinary biomass carbonization furnace, which can be a fixed bed type, a moving bed type or a rotary kiln type carbonization furnace;

15. The activation device is a conventional activation furnace, such as the Sleep activation furnace commonly used at present;

16. Gas treatment device is dry or wet gas purification equipment with deacidification function.

The invention discloses a method and system for preparing carbon adsorption materials by mixing waste plastics and sludge, and belongs to the field of comprehensive utilization of urban domestic garbage and sludge resources. The method is characterized in that: the crushed waste plastics and dried sludge are evenly mixed in a certain proportion, and the mixed materials are carbonized and activated to prepare carbon adsorption materials; the pyrolysis gas generated during the carbonization and activation process is burned as carbonization With an activated external heat source, the flue gas generated by combustion is used for drying and dehydrating sludge, which solves the energy self-sufficiency problem in the process of preparing carbon adsorption materials by pyrolysis of sludge. The equipment system involved in the method is mainly composed of a conveying device, a drying device, a shredding device, a crushing device, a quantitative feeding device, a mixing device, a carbonization device, an activation device, and a gas treatment device. The invention has the advantages of: introducing municipal solid waste into the technical field of preparing carbon materials from sludge, using waste plastics to improve the performance index of sludge pyrolysis carbon, and at the same time taking advantage of the high calorific value of waste plastics, on the one hand, completely solves the problem of sludge drying , The carbonization and activation process involves large energy consumption and high cost. On the other hand, it avoids the waste of resources caused by waste plastic landfill and the environmental pollution caused by simple incineration, realizes the high value-added utilization of waste plastics, and fully embodies clean production and recycling. Economic concept, energy-saving and environmental protection benefits are remarkable. The process of the method is simple and practical, greatly reduces the cost of preparing carbon adsorption materials from sludge, improves market competitiveness, and has broad application prospects.

The above records are only examples of using the technical content of this creation. Any modifications and changes made by those who are familiar with this technology using this creation belong to the scope of patents claimed by this creation, and are not limited to those disclosed in the examples.

Claims (10)

1. plastic waste and mud are mixed with a method for charcoal sorbing material, it is characterized in that performing step comprises:

(1) plastic waste in domestic waste first tear up, break process;

(2) mud after mechanical dehydration is dried, then evenly mixes by a certain percentage with plastic waste, wherein, plastic waste accounts for total weight of material than controlling as 5-50%;

(3) mixed material is sent into carbonizing apparatus and is carried out charing, and the pyrolytic carbon obtaining is sent into activating apparatus again and activated, and finally obtains sludge carbon sorbing material.

2. a kind of plastic waste according to claim 1 and mud are mixed with the method for charcoal sorbing material, it is characterized in that: the pyrolysis gas burning that in step (3), charing and reactivation process produce is as the external heat source of charing and activation, and the flue gas producing after burning is for the drying and dehydrating of mud.

3. a kind of plastic waste according to claim 1 and mud are mixed with the method for charcoal sorbing material, it is characterized in that: in step (1), plastic waste is the plastic waste in domestic waste, especially can be applicable to reluctant mixed waste plastic in domestic waste, the size range of broken rear plastic waste is controlled as <30mm.

4. a kind of plastic waste according to claim 1 and mud are mixed with the method for charcoal sorbing material, it is characterized in that: the mud in step (2) is the mud that Sewage Plant produces through mechanical dehydration, described moisture percentage in sewage sludge <95%, wherein drying method for sludge can be convection drying or contact drying, and dry rear moisture percentage in sewage sludge is controlled as <30%.

5. a kind of plastic waste according to claim 1 and mud are mixed with the method for charcoal sorbing material, it is characterized in that: in step (3), plastic waste and the control of mud mixture pyrolysis charring temperature are 500 ℃-700 ℃, and it is 700 ℃-1000 ℃ that activation temperature is controlled.

6. a plastic waste and mud are mixed with the system of charcoal sorbing material method, it is characterized in that: the method that is mixed with charcoal sorbing material for realizing the described a kind of plastic waste of one of claim 1 to 5 and mud, mainly by e Foerderanlage, drying installation, shredding equipment, shredder assembly, metering device, mixing device, carbonizing apparatus, activating apparatus and gas treatment equipment form, the outlet of 1# e Foerderanlage is connected with shredding equipment entrance, shredding equipment outlet is connected with shredder assembly entrance, shredder assembly outlet is connected with 3# e Foerderanlage entrance, the outlet of 3# e Foerderanlage is connected with 1# buffer bin entrance, the outlet of 1# buffer bin is connected with 1# metering device entrance, the outlet of 1# metering device is connected with mixing device entrance, the outlet of 2# e Foerderanlage is connected with drying installation entrance, sludge drying mechanism outlet is connected with 4# e Foerderanlage entrance, the outlet of 4# e Foerderanlage is connected with 2# buffer bin entrance, the outlet of 2# buffer bin is connected with 2# metering device entrance, and the outlet of 2# metering device is connected with mixing device entrance, mixing device outlet is connected with 5# e Foerderanlage entrance, and the outlet of 5# e Foerderanlage is connected with carbonizing apparatus entrance, and carbonizing apparatus outlet is connected with activating apparatus entrance.

7. a kind of plastic waste and mud are mixed with the system of charcoal sorbing material method according to claim 6, it is characterized in that: the pyrolysis gas that described carbonizing apparatus and activating apparatus produce after gas treatment equipment is processed for combustion heating carbonizing apparatus and activating apparatus, carbonizing apparatus is wherein fixed-bed type, moving-bed type or rotary kiln type charring furnace, activating apparatus is conventional activation furnace, and gas treatment equipment is dry method or the wet method gas purifying equipment with depickling function; The flue gas that burning produces enters drying installation.

8. according to a kind of plastic waste and mud described in claim 6 or 7, be mixed with the system of charcoal sorbing material method, it is characterized in that: described drying installation can be rotary drying equipment, hydrothermal method dehydration equipment, fluidized drying equipment, vacuum dryer or disc type drying plant etc.; Drying mode can be convection drying and contact drying.

9. a kind of plastic waste and mud are mixed with the system of charcoal sorbing material method according to claim 6, it is characterized in that: described 1# metering device and 2# metering device are screw feeder, star feeder or oscillating feeder; Described mixing device is plough coulter type mixer, rake mixer, rotaring tube mode mixer or stirring-type mixer.

10. according to the described a kind of plastic waste of one of claim 6 to 9 and mud, be mixed with the system of charcoal sorbing material method, it is characterized in that: described 1# e Foerderanlage is rotary conveyor or apron conveyor; 2# e Foerderanlage is rotary conveyor, scraper conveyor, bucket elevator, machine for zipper or worm conveyor; 3# e Foerderanlage is rotary conveyor, worm conveyor or scraper conveyor; 4# e Foerderanlage and 5# e Foerderanlage can be rotary conveyor, scraper conveyor, bucket elevator, machine for zipper or worm conveyor; Shredding equipment is plastic shredding machine; Shredder assembly is plastics shear crusher.