CN215696714U - Anaerobic depolymerization device for treating solid waste - Google Patents
Anaerobic depolymerization device for treating solid waste Download PDFInfo
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- CN215696714U CN215696714U CN202121718491.5U CN202121718491U CN215696714U CN 215696714 U CN215696714 U CN 215696714U CN 202121718491 U CN202121718491 U CN 202121718491U CN 215696714 U CN215696714 U CN 215696714U
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Abstract
The utility model discloses an anaerobic depolymerization device for treating solid waste, which comprises a crushing unit, a drying unit, an anaerobic depolymerization unit, a liquid seal, a cooling device, a solid-liquid-gas three-phase separation unit, a steam boiler and a generator set, wherein a discharge hole of the crushing unit is connected to the drying unit; a discharge port of the drying unit is connected to the oxygen-free depolymerization unit; a discharge port of the oxygen-free depolymerization unit is connected to the cooling device, and a liquid seal is arranged between the discharge port and the cooling device; a gas collection port of the oxygen-free depolymerization unit is connected to the solid-liquid-gas three-phase separation unit; the gas outlet of the solid-liquid-gas three-phase separation unit is connected to the steam boiler; the steam boiler is connected to the generator set, and the generator set is connected with the oxygen-free depolymerization unit in a power supply mode. The device has the advantages of no pollution in the treatment process, safe, simple and reliable equipment, modular design and improvement of treatment speed and capacity.
Description
Technical Field
The utility model relates to the technical field of solid (dangerous) body waste treatment, in particular to an oxygen-free depolymerization device for treating solid waste.
Background
At present, the discharge amount of solid (dangerous) body wastes is continuously increased, the situation that the types are more complicated is presented, serious hidden dangers are buried for the health of the public, and the generation of the solid (dangerous) body wastes mainly comprises the following four types: 1. industrial solid waste; 2. Agricultural solid waste; 3. domestic garbage; 4. hazardous solid waste. Solid (dangerous) body wastes can cause the following hazards: 1. a large amount of stacking wastes and pollutes land resources; 2. water pollution is caused by discharging the waste water into water resources; 3. and the air is polluted by the air floating.
The prior art solutions for treating solid (hazardous) body waste generally have the following problems: the intermittent time of the treatment mode is long, the depolymerization reaction process is substantially that the lower part is subjected to anaerobic incineration and the upper part is subjected to partial anaerobic depolymerization, so the production process has pollutant emission, meanwhile, the treatment device is overstaffed, the weight is generally more than hundred tons, the device must be custom-made in rural areas to super-large cities, the device cannot be moved by containers and processed and manufactured in a modularized way, and the applicability is not high.
Disclosure of Invention
The utility model aims to provide an oxygen-free depolymerization device for treating solid waste, which has no pollution in the treatment process, safe, simple and reliable equipment, can be designed in a modularized way, and improves the treatment speed and the productivity.
The purpose of the utility model is realized by the following technical scheme:
an oxygen-free depolymerization device for treating solid waste, the device comprising a crushing unit, a drying unit, an oxygen-free depolymerization unit, a liquid seal, a cooling device, a solid-liquid-gas three-phase separation unit, a steam boiler and a generator set, wherein:
the discharge port of the crushing unit is connected to the drying unit;
a discharge port of the drying unit is connected to the oxygen-free depolymerization unit;
a discharge port of the oxygen-free depolymerization unit is connected to the cooling device, and a liquid seal is arranged between the discharge port and the cooling device;
a gas collection port of the oxygen-free depolymerization unit is connected to the solid-liquid-gas three-phase separation unit;
the gas outlet of the solid-liquid-gas three-phase separation unit is connected to the steam boiler;
the steam boiler is connected to the generator set, and the generator set is connected with the oxygen-free depolymerization unit in a power supply mode.
The oxygen-free depolymerization unit is a combined shell made of various heat-insulating materials, and the interior of the oxygen-free depolymerization unit is composed of a stirring transmission mechanism and a slag discharge device.
The temperature in the oxygen-free depolymerization unit is controlled to be 450-1100 ℃.
According to the technical scheme provided by the utility model, the device has the advantages of no pollution in the treatment process, safe, simple and reliable equipment, modular design, improvement of treatment speed and capacity, smooth production of combustible gas, oil, carbon and the like, and wide application in sewage (oil) mud, oil shale (oil sand), household garbage, medical garbage, kitchen garbage and the like.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of an oxygen-free depolymerization apparatus for treating solid waste according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, not all embodiments, and this does not limit the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
The anaerobic depolymerization process is to utilize the instability of organic matter in solid (dangerous) waste and domestic garbage after being heated to heat the organic matter under anaerobic condition to generate thermal depolymerization of the organic matter, and then to form various new gases, liquids and solid residues after being condensed, thereby extracting fuel oil, grease and fuel gas. As shown in fig. 1, the oxygen-free depolymerization apparatus for treating solid waste of the present invention mainly comprises a crushing unit (2), a drying unit (3), an oxygen-free depolymerization unit (4), a liquid seal, a cooling apparatus (5), a solid-liquid-gas three-phase separation unit (8), a steam boiler (12) and a generator set (13), wherein the connection relationship of each part is as follows:
the discharge port of the crushing unit (2) is connected to the drying unit (3);
the discharge hole of the drying unit (3) is connected to the oxygen-free depolymerization unit (4); wherein, the oxygen-free depolymerization unit (4) is a combined shell made of a plurality of heat insulation materials, and the interior of the oxygen-free depolymerization unit is composed of a stirring transmission mechanism and a slag discharge device; after the solid waste enters the anaerobic depolymerization device, the solid waste is continuously stirred and turned up through the stirring transmission mechanism, so that the solid waste is fully and uniformly heated, depolymerization reaction is rapidly carried out, the reaction treatment capacity is effectively improved, and the treated residue is subjected to control of the residue discharge mechanism through the residue discharge device and is continuously discharged according to the set residue discharge amount.
The discharge port of the oxygen-free depolymerization unit (4) is connected to the cooling device (5), and a liquid seal is arranged between the discharge port and the cooling device (5); the solid waste materials can generate part of recoverable substances such as oil gas and water vapor after depolymerization reaction, and simultaneously generate a positive pressure working state in the oxygen-free depolymerization unit, the oil gas and the water vapor are recovered by the recovery device, and the residual residues are discharged by the discharge device according to the set discharge amount, so that the spontaneous combustion safety accident caused by contact with the outside air is avoided, and the sealing and cooling problems are effectively guaranteed by adopting a structural design mode of integrating water sealing and cooling in the slag discharge process.
A gas collection port of the oxygen-free depolymerization unit (4) is connected to the solid-liquid-gas three-phase separation unit (8);
the gas outlet of the solid-liquid-gas three-phase separation unit (8) is connected to the steam boiler (12);
the steam boiler (12) is connected to the generator set (13), and the generator set (13) is in turn in power supply connection with the oxygen-free depolymerization unit (4).
Based on the structure of the device, the solid (dangerous) waste (1) sequentially passes through the crushing unit (2) and the drying unit (3) to reach the requirements of granularity of 1-10 mm and water content of 10-30%; then enters an oxygen-free depolymerization unit (4), the oxygen-free depolymerization unit (4) adopts an instant heating mode in a closed oxygen-free space and reacts under the condition of oxygen-free high temperature to generate two types of products, namely a carbon energy source (7) and a solid-liquid-gas three-phase depolymerization product (6), wherein:
the carbon energy (7) enters a liquid seal through a discharge hole of the anaerobic depolymerization unit (4) and then is obtained through a cooling device (5); the solid-liquid-gas three-phase depolymerization product (6) is discharged through a gas collecting port of the oxygen-free depolymerization unit (4) and enters a subsequent solid-liquid-gas three-phase separation unit (8), and combustible gas (9), grease (10) and residue (11) are obtained by separation of the solid-liquid-gas three-phase separation unit (8);
the grease (10) and the residue (11) can be used as product raw materials to directly enter other circular production links;
combustible gas (9) is discharged from the gas outlet of the solid-liquid-gas three-phase separation unit (8) and enters the steam boiler (12) to provide energy for the generator set (13), and the generator set (13) generates electric energy to supply power for the oxygen-free depolymerization unit (4) so as to meet the energy consumption of the whole device in operation and realize closed circulation of the whole device.
In the specific implementation, the temperature in the anaerobic depolymerization unit (4) is controlled at 450-1100 ℃ because of different depolymerization temperatures of different types of solid (dangerous) body wastes, and large-range accurate temperature adjustment is realized through a control system so as to realize the anaerobic depolymerization of different types of solid (dangerous) body wastes.
It is noted that those skilled in the art will recognize that embodiments of the present invention are not described in detail herein.
In summary, the device of the present invention has the following advantages:
(1) the device is in a continuous working mode, the depolymerization reaction time is less than 30 minutes, and no new pollutant is discharged in the oxygen-free depolymerization production process;
(2) the device is a modularized portable structure, can be designed and manufactured into a series of devices with specifications of treating solid (dangerous) body wastes and domestic garbage 25 tons per set per day, has light weight, can be used in parallel by selecting the project of a very large city, does not need to be customized, and can be processed and manufactured in a modularized way;
(3) the device adopts a self-heating technology, takes the biomass in the solid (dangerous) body waste and the household garbage as raw materials, generates electricity by taking combustible gas generated after anaerobic depolymerization as fuel, generates electricity to carry out anaerobic depolymerization on the solid (dangerous) body waste and the household garbage, continuously circulates the process, does not need to separately input energy, enables the system to carry out anaerobic cracking by using the electricity generated by the system, and can also adopt the combustible gas generated by the anaerobic depolymerization to heat if necessary;
(4) the device adopts a material plug and a vacuum technology, the oxygen content in the depolymerization process is nearly zero, and the depolymerization safety is greatly improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims. The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Claims (3)
1. An anaerobic depolymerization device for treating solid waste, comprising a crushing unit, a drying unit, an anaerobic depolymerization unit, a liquid seal, a cooling device, a solid-liquid-gas three-phase separation unit, a steam boiler and a generator set, wherein:
the discharge port of the crushing unit is connected to the drying unit;
a discharge port of the drying unit is connected to the oxygen-free depolymerization unit;
a discharge port of the oxygen-free depolymerization unit is connected to the cooling device, and a liquid seal is arranged between the discharge port and the cooling device;
a gas collection port of the oxygen-free depolymerization unit is connected to the solid-liquid-gas three-phase separation unit;
the gas outlet of the solid-liquid-gas three-phase separation unit is connected to the steam boiler;
the steam boiler is connected to the generator set, and the generator set is connected with the oxygen-free depolymerization unit in a power supply mode.
2. The anaerobic depolymerization device for processing solid waste according to claim 1,
the oxygen-free depolymerization unit is a combined shell made of various heat-insulating materials, and the interior of the oxygen-free depolymerization unit is composed of a stirring transmission mechanism and a slag discharge device.
3. The anaerobic depolymerization device for processing solid waste according to claim 1,
the temperature in the oxygen-free depolymerization unit is controlled to be 450-1100 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121718491.5U CN215696714U (en) | 2021-07-27 | 2021-07-27 | Anaerobic depolymerization device for treating solid waste |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202121718491.5U CN215696714U (en) | 2021-07-27 | 2021-07-27 | Anaerobic depolymerization device for treating solid waste |
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| Publication Number | Publication Date |
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| CN215696714U true CN215696714U (en) | 2022-02-01 |
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| CN202121718491.5U Active CN215696714U (en) | 2021-07-27 | 2021-07-27 | Anaerobic depolymerization device for treating solid waste |
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- 2021-07-27 CN CN202121718491.5U patent/CN215696714U/en active Active
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