CN111442280A - Pyrolysis gasification device suitable for mix organic solid useless - Google Patents

Pyrolysis gasification device suitable for mix organic solid useless Download PDF

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Publication number
CN111442280A
CN111442280A CN202010278678.1A CN202010278678A CN111442280A CN 111442280 A CN111442280 A CN 111442280A CN 202010278678 A CN202010278678 A CN 202010278678A CN 111442280 A CN111442280 A CN 111442280A
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CN
China
Prior art keywords
rotary dryer
tubular rotary
materials
organic solid
calorific
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010278678.1A
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Chinese (zh)
Inventor
林伯儒
吕卫奇
黄晓烽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sigent New Energy Technology Shanghai Co ltd
Original Assignee
Sigent New Energy Technology Shanghai Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sigent New Energy Technology Shanghai Co ltd filed Critical Sigent New Energy Technology Shanghai Co ltd
Priority to CN202010278678.1A priority Critical patent/CN111442280A/en
Publication of CN111442280A publication Critical patent/CN111442280A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/027Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/033Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment comminuting or crushing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/02Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
    • F23G5/04Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment drying
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/08Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/08Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
    • F23G5/14Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion
    • F23G5/16Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating including secondary combustion in a separate combustion chamber
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44Details; Accessories
    • F23G5/442Waste feed arrangements
    • F23G5/444Waste feed arrangements for solid waste
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/44Details; Accessories
    • F23G5/46Recuperation of heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/10Drying by heat
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/30Pyrolysing
    • F23G2201/302Treating pyrosolids
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/30Pyrolysing
    • F23G2201/303Burning pyrogases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/40Gasification
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/70Blending
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2201/00Pretreatment
    • F23G2201/80Shredding
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2202/00Combustion
    • F23G2202/10Combustion in two or more stages
    • F23G2202/103Combustion in two or more stages in separate chambers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00Waste heat recuperation
    • F23G2206/10Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23GCREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2206/00Waste heat recuperation
    • F23G2206/20Waste heat recuperation using the heat in association with another installation
    • F23G2206/203Waste heat recuperation using the heat in association with another installation with a power/heat generating installation
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/12Heat utilisation in combustion or incineration of waste

Abstract

The invention relates to the technical field of organic solid waste treatment, in particular to a pyrolysis gasification device suitable for mixing organic solid waste, which comprises a crushing device and a tubular rotary dryer, wherein one end of the crushing device is connected with the tubular rotary dryer, the crushing device is also connected with a material secondary feeding device, and the tubular rotary dryer is connected with a material primary feeding device; the tubular rotary dryer is connected with a vertical pyrolysis gasifier, and the vertical pyrolysis gasifier is connected with a waste heat boiler device. The invention has the advantages that the complementary characteristics of the processing characteristics of different materials are utilized, and the two materials are subjected to synergistic processing in the resource direction, so that the mutual advantages are utilized to offset the mutual disadvantages; the secondary fuel generated by thermal cracking of the high-calorific-value materials is used for drying the low-calorific-value high-moisture materials, and the high treatment charge of the low-calorific-value high-moisture materials is used for offsetting the low treatment charge of the high-calorific-value materials, so that the dual optimization of energy efficiency and treatment cost is realized.

Description

Pyrolysis gasification device suitable for mix organic solid useless
Technical Field
The invention relates to the technical field of organic solid waste treatment, in particular to a pyrolysis gasification device suitable for mixing organic solid waste.
Background
In view of the background that the public conflicts with the burning project at present, the method is considered from the resource direction: because some solid wastes (such as sludge, kitchen waste and the like) contain a large amount of water, the heat value is relatively low, and the treatment cost is relatively high; and the heat value of the other solid wastes (such as waste plastics, biomass and the like) is relatively high, and the treatment cost is relatively low.
The existing separate treatment technology is adopted, and a large amount of high-calorific-value energy such as coal is required to be added to supplement heat for treating low-calorific-value solid waste such as domestic sludge, so that the cost is increased, and the risk of secondary pollution is caused; the heat energy for treating waste plastics and other garbage is surplus, but the treatment cost is relatively low, and the project economy is seriously influenced.
Disclosure of Invention
The invention aims to provide a pyrolysis gasification device suitable for mixing organic solid wastes so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a pyrolysis gasification device suitable for mixing organic solid waste comprises a crushing device and a tubular rotary dryer, wherein one end of the crushing device is connected with the tubular rotary dryer, the crushing device is also connected with a material two feeding device, and the tubular rotary dryer is connected with a material one feeding device;
the tubular rotary dryer is connected with a vertical pyrolysis gasifier, the vertical pyrolysis gasifier is connected with a waste heat boiler device, and the waste heat boiler device is connected with the tubular rotary dryer.
The invention further comprises the following steps: the tubular rotary dryer is also connected with the vertical pyrolysis gasifier through a drying and condensing device.
The invention adopts the following further scheme that: the waste heat boiler device is connected with the tubular rotary dryer through a steam pressure reduction/water return device.
The invention adopts the following further scheme that: and one side of the waste heat boiler device is connected with a waste heat utilization device, and the waste heat utilization device is connected with the vertical pyrolysis gasification furnace through a recirculation fan.
The invention adopts the following further scheme that: the waste heat utilization device is also connected with the flue gas purification device.
The invention has the advantages that the complementary characteristics of the processing characteristics of different materials are utilized, and the two materials are subjected to synergistic processing in the resource direction, so that the mutual advantages are utilized to offset the mutual disadvantages; the secondary fuel generated by thermal cracking of the high-calorific-value materials is used for drying the low-calorific-value high-moisture materials, and the high treatment charge of the low-calorific-value high-moisture materials is used for offsetting the low treatment charge of the high-calorific-value materials, so that the dual optimization of energy efficiency and treatment cost is realized. The invention can flexibly adjust the proportion of the two materials, realize the perfect fit of the process to the boundary conditions of the project and achieve the optimized processing effect and processing cost.
Drawings
FIG. 1 is a process flow diagram of a preferred embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be 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, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, in the embodiment of the present invention, a pyrolysis gasification apparatus suitable for mixing organic solid waste includes a crushing apparatus 3 and a tubular rotary dryer 4, one end of the crushing apparatus 3 is connected to the tubular rotary dryer 4, the crushing apparatus 3 is further connected to a second material feeding apparatus 2, and the tubular rotary dryer 4 is connected to a first material feeding apparatus 1;
the tubular rotary dryer 4 is connected with a vertical pyrolysis gasifier 5, the vertical pyrolysis gasifier 5 is connected with a waste heat boiler device 6, and the waste heat boiler device 6 is connected with the tubular rotary dryer 4.
In one embodiment of the invention, a first material with a low calorific value is added into a tubular rotary dryer 4 for drying by a first material feeding device 1, a second material with a high calorific value is added into a crushing device 3 by a second material heating device 2, the crushing device 3 is used for crushing the second material, the crushed second material is metered into the tubular rotary dryer 4, and the first material and the second material are mixed in the tubular rotary dryer 4; the dried mixed material is input into a vertical pyrolysis gasifier 5 for heating and thermal cracking, the generated combustible oil gas enters a combustion chamber in the vertical pyrolysis gasifier 5 for combustion, the generated high-temperature flue gas firstly supplies heat to the vertical pyrolysis gasifier 5, the normal work of the vertical pyrolysis gasifier 5 is guaranteed, and the generated slag can be used for building material utilization; the other part of the flue gas enters a waste heat boiler device 6, and the flue gas is input into a tubular rotary dryer 4 through a steam pressure reduction/water return device 7 and is used for carrying out prior drying heat supply on the mixed material; in this embodiment, generally, materials with low calorific value are high in processing charge, but need more auxiliary energy and are high in cost, materials with high calorific value are low in processing charge, but heat energy is surplus, and the invention utilizes the complementary characteristic of the processing characteristics of different materials, takes the resource utilization direction into consideration, and utilizes the mutual advantages of the two materials to offset the mutual disadvantages by means of synergistic processing; the secondary fuel generated by thermal cracking of the high-calorific-value materials is used for drying the low-calorific-value high-moisture materials, and the high treatment charge of the low-calorific-value high-moisture materials is used for offsetting the low treatment charge of the high-calorific-value materials, so that the dual optimization of energy efficiency and treatment cost is realized.
In the embodiment of the invention, the material two-conveying device 2 can be in the form of a conveyor belt and is suitable for conveying solid materials, and the material one-conveying device 1 is in the form of a spiral auger and is suitable for conveying materials such as sludge and the like.
The invention can flexibly adjust the proportion of the two materials, realize the perfect fit of the process to the boundary conditions of the project and achieve the optimized processing effect and processing cost.
In this embodiment, the first material may be sludge, oil sludge, kitchen waste and the like containing about 60% of water, and after being dried by the tubular rotary dryer, the water content is usually reduced to 20% -30%; the second material can be waste plastics, biomass or other organic solid wastes.
In the embodiment of the present invention, after the steam brought in by the exhaust-heat boiler device 6 enters the tubular rotary dryer 4, the steam contained in the residual unused heat is dried by the drying and condensing device 8, so that the part of the heat can be returned to the vertical pyrolysis and gasification furnace 5 again for use.
The waste heat boiler device 6 is connected with the tubular rotary dryer 4 through a steam pressure reduction/water return device 7.
Referring to fig. 1, in an embodiment of the present invention, a waste heat utilization device 9 is connected to one side of the waste heat boiler device 6, the waste heat utilization device 9 is connected to the vertical pyrolysis gasifier 5 through a recirculation fan 10, and a part of the residual heat in the waste heat boiler device 6 is collected by the waste heat utilization device 9 and is conveyed to the vertical pyrolysis gasifier 5 again through the recirculation fan 10 to supply heat to the vertical pyrolysis gasifier 5, so that the heat utilization efficiency is maximized.
The waste heat utilization device 9 is also connected with the flue gas purification device 11, and the flue gas utilized by the waste heat utilization device 9 is purified by the flue gas purification device 11 and then is discharged up to the standard, so that the environment is not polluted.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. A pyrolysis gasification device suitable for mixing organic solid wastes is characterized by comprising a crushing device and a tubular rotary dryer, wherein one end of the crushing device is connected with the tubular rotary dryer, the crushing device is also connected with a material two feeding device, and the tubular rotary dryer is connected with a material one feeding device;
the tubular rotary dryer is connected with a vertical pyrolysis gasifier, the vertical pyrolysis gasifier is connected with a waste heat boiler device, and the waste heat boiler device is connected with the tubular rotary dryer.
2. The pyrolysis gasification apparatus for mixed organic solid waste according to claim 1, wherein the tubular rotary dryer is further connected with the vertical pyrolysis gasification furnace through a drying and condensing device.
3. The pyrolysis gasification device suitable for mixing organic solid wastes according to claim 1, wherein the exhaust-heat boiler device is connected with a tubular rotary dryer through a steam pressure reduction/water return device.
4. The pyrolysis gasification device suitable for mixing organic solid wastes according to claim 1 or 2, characterized in that a waste heat utilization device is connected to one side of the waste heat boiler device, and the waste heat utilization device is connected with the vertical pyrolysis gasification furnace through a recirculation fan.
5. The pyrolysis gasification device suitable for mixing organic solid waste according to claim 4, characterized in that the waste heat utilization device is further connected with a flue gas purification device.
CN202010278678.1A 2020-04-10 2020-04-10 Pyrolysis gasification device suitable for mix organic solid useless Pending CN111442280A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010278678.1A CN111442280A (en) 2020-04-10 2020-04-10 Pyrolysis gasification device suitable for mix organic solid useless

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010278678.1A CN111442280A (en) 2020-04-10 2020-04-10 Pyrolysis gasification device suitable for mix organic solid useless

Publications (1)

Publication Number Publication Date
CN111442280A true CN111442280A (en) 2020-07-24

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CN202010278678.1A Pending CN111442280A (en) 2020-04-10 2020-04-10 Pyrolysis gasification device suitable for mix organic solid useless

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114082752A (en) * 2021-11-16 2022-02-25 天津大学 Solid waste treatment method

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109485228A (en) * 2018-12-19 2019-03-19 福建中庚环境技术有限公司 A kind of synergic processing process that sludge is combined with rubbish

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109485228A (en) * 2018-12-19 2019-03-19 福建中庚环境技术有限公司 A kind of synergic processing process that sludge is combined with rubbish

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114082752A (en) * 2021-11-16 2022-02-25 天津大学 Solid waste treatment method

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RJ01 Rejection of invention patent application after publication

Application publication date: 20200724