Intermediate frequency induction heating schizolysis refuse treatment device and refuse treatment system
Technical Field
The utility model relates to a useless solid refuse treatment system specifically is a medium frequency induction heating schizolysis refuse treatment device and refuse treatment system.
Background
The traditional garbage disposal methods mainly comprise landfill, incineration and other landfill, which occupy a large amount of valuable land resources and pollute the environment (atmosphere, underground water and the like), so the simple disposal method is basically not adopted. Compared with landfill treatment, waste incineration is a better treatment mode. Through burning, not only the volume reduces greatly, still can utilize the heat electricity generation that burns the production, heat supply, reaches the purpose of energy reuse, so burning technology has become a waste treatment technology of current domestic and foreign general adoption. However, direct incineration of waste has many problems, such as: (1) the secondary pollution problem, acid gas generated by burning organic matters in the garbage components, highly toxic chlorine-containing high molecular compounds (generally called dioxin substances) and mercury-containing fly ash can cause pollution to the environment; (2) the incineration equipment is damaged, chlorine-containing compounds in the garbage form corrosive gas in the furnace, and metal parts in the furnace can be seriously corroded at the temperature of more than 250 ℃; (3) the waste is complex in composition, and various different components have different densities, shapes, chemicals, ignition and combustion characteristics, and they exhibit different combustion properties in the incinerator, so that it is difficult to control the combustion process. In order to overcome the above-mentioned disadvantages of the waste incineration technology, a high-temperature thermal cracking technology of waste as a substitute technology for waste incineration has been developed and applied.
Medium-frequency high-temperature thermal cracking, thermal decomposition or carbonization refers to a process of heating and decomposing organic substances in an oxygen-free state. Namely, the high-temperature thermal cracking is a process of utilizing the thermal instability of organic matters, utilizing heat energy to break chemical bonds of compounds under the condition of no oxygen or lack of oxygen, and converting the organic matters with large molecular weight into combustible gas, liquid fuel and coke with small molecular weight. High temperature thermal cracking and incineration are similar in that both are thermochemical conversion processes, but they are two completely different processes, differing primarily in that:
(1) the products of incineration mainly comprise carbon dioxide and water, the products of high-temperature thermal cracking mainly comprise combustible low-molecular compounds, gaseous hydrogen, methane and carbon monoxide, liquid organic matters such as methanol, acetone and acetaldehyde, tar, solvent oil and the like, and solid coke or carbon black; (2) incineration is an oxidation reaction of carbon and hydrogen, which are main combustible substances in solid waste, and is an exothermic process, and high-temperature and high-pressure thermal cracking is a heating process, and a large amount of heat is needed to decompose organic compounds;
(2) the burning can only use the generated heat for power generation or heat supply, and the products of high-temperature thermal cracking are fuel gas and fuel oil which can be recycled and are easy to store and transport.
Based on this, this application provides a medium frequency induction heating schizolysis refuse treatment device and refuse treatment system.
Disclosure of Invention
An object of the utility model is to provide an intermediate frequency induction heating schizolysis refuse treatment device and refuse treatment system to solve the problem that provides among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model provides a medium frequency induction heating schizolysis refuse treatment device, includes schizolysis furnace body, feed mechanism and discharge mechanism, be equipped with the pyrolysis chamber in the schizolysis furnace body, install medium frequency induction heating layer in the pyrolysis chamber for carry out medium frequency induction heating to rubbish, be connected with feed mechanism and discharge mechanism on the schizolysis furnace body, be used for realizing feeding and ejection of compact action respectively.
As a further aspect of the present invention: and a heat preservation layer and an outer shell protection layer are sequentially arranged outside the medium-frequency induction heating layer.
As a further aspect of the present invention: and the feeding mechanism and the discharging mechanism are respectively provided with a sealing chamber.
As a further aspect of the present invention: and the discharging mechanism is connected with an oil-gas mechanism and a slag discharging port.
As a further aspect of the present invention: and a bearing steel ring is fixed outside the cracking furnace body and is driven to rotate by a driving mechanism so as to drive the cracking furnace body to rotate.
As a further aspect of the present invention: the driving mechanism comprises a driving wheel in surface contact with the bearing steel ring and a guide limiting wheel connected with the side face of the bearing steel ring.
A garbage disposal system comprises the medium-frequency induction heating cracking garbage disposal device.
Compared with the prior art, the beneficial effects of the utility model are that: the method can perfectly change the treatment mode of the waste solid garbage, reduce the transportation cost and the secondary pollution in the transportation process, is used for the resource treatment of the solid garbage, and manufacturing the regenerated fuel, and is undoubtedly a promising solid waste treatment method.
Drawings
Fig. 1 is a schematic structural diagram of a medium-frequency induction heating cracking garbage treatment device.
FIG. 2 is a side view of a medium frequency induction pyrolysis garbage disposal apparatus.
FIG. 3 is a schematic structural diagram of a cracking furnace body in a medium-frequency induction heating cracking garbage disposal device.
Fig. 4 is a sectional view a-a of fig. 3.
In the figure: 1-a cracking furnace body, 101-a shell protective layer, 102-a heat insulation layer, 103-a medium-frequency induction heating layer, 104-a high-temperature cracking chamber, 2-a sealing chamber, 3-an expansion joint, 4-an oil gas mechanism, 5-a slag discharge port, 6-a bearing steel ring, 7-a feeding mechanism and 8-a discharging mechanism.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The implementations described in the exemplary embodiments below are not intended to represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.
Example 1
Referring to fig. 1-4, in the embodiment of the present invention, an intermediate frequency induction heating cracking garbage disposal apparatus comprises a cracking furnace body 1, a feeding mechanism 7 and a discharging mechanism 8, in this embodiment, a pyrolysis chamber 104 is disposed in the cracking furnace body 1, an intermediate frequency induction heating layer 103 is disposed in the pyrolysis chamber 104, a heat insulating layer 102 and a casing protective layer 101 are sequentially disposed outside the intermediate frequency induction heating layer 103 for performing intermediate frequency induction heating on garbage, in practical application, a power frequency 50 hz ac power rail is changed into an intermediate frequency (300 hz-20 khz) source device, three-phase power frequency ac power is rectified and then changed into dc power, and then the dc power is changed into adjustable intermediate frequency current, so as to generate high-density magnetic force lines in an induction coil, and generate a very large eddy current in a metal material, so as to realize a heating cracking function, of course, the feeding mechanism 7 and the discharging mechanism 8 are connected to the cracking furnace body 1, are respectively used for realizing the feeding and discharging functions.
In practical application, the sealing performance of the cracking furnace body 1 needs to be ensured to realize creation of an oxygen-deficient or oxygen-free condition, so in this embodiment, the sealing chambers 2 are arranged at the feeding mechanism 7 and the discharging mechanism 8, and here, the sealing chambers 2 can be understood as valve devices, and in a closed state, the sealing performance of the cracking furnace body 1 can be ensured.
Of course, when in actual use, the product of the cracking furnace body 1 not only includes the waste solid garbage which can not be cracked, but also includes some oil gas products, therefore, the discharging mechanism 8 is connected with the oil gas mechanism 4 and the slag discharging port 5, specifically, the oil gas mechanism 4 is actually a pipeline for discharging the oil gas generated by cracking, and the slag discharging port 5 is used for discharging the waste solid garbage which can not be cracked, such as carbon black and coke.
For the installation mode of the cracking furnace body 1, a bearing steel ring 6 is fixed outside the cracking furnace body 1, the bearing steel ring 6 is driven by a driving mechanism to rotate so as to drive the cracking furnace body 1 to rotate, so that waste solid garbage inside the cracking furnace body can be heated uniformly, specifically, the driving mechanism comprises a driving wheel in surface contact with the bearing steel ring 6 and a guide limiting wheel connected with the side surface of the bearing steel ring 6, and two ends of the cracking furnace body 1 are connected with bearing seats through expansion joints 3.
Because the medium-frequency induction heating high-temperature and high-pressure is adopted to maintain the high-temperature thermal cracking reaction, air is not needed, combustion is not needed, the high-temperature thermal cracking is more complete, and no smoke and dust exists. Namely, the waste solid garbage entering the high temperature cracking chamber 104 is gasified and cracked instead of being burned, thereby improving the efficiency of high temperature thermal cracking, and simultaneously reducing the amount of air used for burning the garbage, so that the combustion gas generated by burning can be reduced, thereby reducing the burning dust, reducing the intermolecular cohesion in the organic components in the treated solid waste, and reducing the energy required by high temperature thermal cracking, thereby improving the effect of high temperature thermal cracking. In addition, because the closed oxygen-free gas has large pressure and no air circulation, and the heat loss is very little, the high pyrolysis temperature, about 850-1200 ℃, is kept in the normal and stable high-temperature thermal cracking process in the treatment chamber.
The combustible materials (such as paper, plate, wood chips, etc.) in the solid waste are gasified, carbonized (not combusted), and then are gasified, carbonized and cracked in the cracking furnace body 1, the generated gasification products are placed in a reducing atmosphere to be separated into heavy oil and combustible gas, heat is released, and the heat is utilized to completely thermally crack and gasify the organic matters in the solid waste at high temperature. There is no fly ash produced because there is no agitation like in a direct incinerator. The harmful substances and gas are instantaneously cracked and gasified, so that the dust content in the discharged gas is extremely limited, and the most strict dust discharge requirement can be met after the dust removing device is added.
Here, the high temperature action of 2000-3000 ℃ is used to purify the gas pollutants, the principle of which is to convert the harmful substances in the exhaust gas into inorganic harmless substances. The method has the advantages that the harmful gas is directly and thoroughly cracked into harmless substances without separating the harmful gas from the main gas flow, so that the secondary pollution can be avoided, and the operation process is simplified.
Carbon monoxide and various hydrocarbons produced by high temperature thermal cracking react to produce carbon dioxide and water. The organic residue after high temperature thermal cracking and non-combustible materials (such as glass, metal, ceramic and the like) in the solid waste are discharged from the slag discharge port 5.
Example 2
A waste treatment system comprising a medium frequency induction pyrolysis waste treatment apparatus as described in the previous embodiments, for example: the combustible oil gas generated by the device can be used for generating power, and the combustible oil gas and the residual heat in the medium-frequency heating process are used for generating power;
another example is: combustible oil gas is combusted, thermally cracked and gasified with organic matter harmful substances through sufficient combustion, residual harmful substances are instantaneously and thoroughly thermally cracked and gasified in a high-temperature plasma region through flue discharge, and finally carbon dioxide in the discharged harmless gas is purified and recovered through a carbon dioxide purification and recovery device to prepare carbon dioxide gas, so that the emission of the carbon dioxide is reduced, and good economic benefit can be created;
another example is: and the waste solid garbage which cannot be cracked and the like are subjected to magnetic separation and gravity separation to separate out substances such as metals and the like, so that economic income can be obtained.
By means of the medium-frequency induction heating cracking garbage treatment device in the embodiment, a complete waste solid garbage treatment industrial chain can be formed.
It should be particularly noted that, in this technical solution, the utility model discloses the treatment method that changes useless solid waste (belong to small-size treatment facility, the handling capacity is by 1 ton-60 tons, be applicable to remote mountain area, district, county, town, village, also can be used to hospital's medical waste, oil field fatlute, large hotel, unrecoverable waste plastics) that can be perfect, alleviate transportation cost and secondary pollution (the on-the-spot processing) in the transit, be used for the resourceful treatment of solid waste, and make regenerated fuel, become a very promising solid waste treatment method undoubtedly, the adoption of high pressure high temperature thermal cracking device no longer simply handles the elimination rubbish, also focus on the regeneration of energy and other resources in the useless solid waste simultaneously, reach environmental protection, energy-conservation, the comprehensive effect of resource regeneration cycle application.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.
It will be understood that the present disclosure is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.