CN107986278A - A kind of method using house refuse production calcium carbide - Google Patents
A kind of method using house refuse production calcium carbide Download PDFInfo
- Publication number
- CN107986278A CN107986278A CN201711363213.0A CN201711363213A CN107986278A CN 107986278 A CN107986278 A CN 107986278A CN 201711363213 A CN201711363213 A CN 201711363213A CN 107986278 A CN107986278 A CN 107986278A
- Authority
- CN
- China
- Prior art keywords
- calcium carbide
- pyrolysis
- method described
- obtains
- house refuse
- 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
Links
Abstract
The present invention relates to a kind of method using house refuse production calcium carbide.Described method includes following steps：House refuse is crushed, and sub-elects combustable organic thing；Pulverized bituminous coal and binding agent are added into combustable organic thing, and is uniformly mixed, obtains mixed material；Mixed material obtains moulding stick through forming processes；Moulding stick is pyrolyzed, obtains material after pyrolysis oil gas and pyrolysis；Quick lime is added in material after to pyrolysis and carries out anoxybiotic smelting after mixing, obtains calcium carbide.The method of the present invention can also obtain raw material of industry calcium carbide, the processing cost of rubbish and the production cost of calcium carbide can be greatly reduced, realize energy-saving purpose while the recycling of house refuse, minimizing processing is realized.
Description
Technical field
The present invention relates to field of garbage disposal, and in particular to a kind of method using house refuse production calcium carbide.
Background technology
Currently, the domestic waste of the enormous amount produced every year causes sternness to environmental management and contamination control and chooses
War, just to be faster than the increase of the speed of economic 2.5~3 times of average speed of growth, average annual growth rate is world's quantity of refuse
8.24%, some developing country's speedups are up to more than 10%.In China, domestic waste annual output accounts for the whole world and produces rubbish per year
It is more than a quarter of rubbish.China has developed into city 668, wherein 200 cities are absorbed among rubbish encirclement, year
It is about 1.5 hundred million tons to produce quantity of refuse.China becomes one of most heavy country of rubbish burden in the world, municipal refuse it is innoxious,
Minimizing and recycling treatment are extremely urgent.
The major way of garbage disposal has landfill method, composting method and burning method.Landfill or outdoor accumulation all can not achieve rubbish
The minimizing of rubbish processing, still needs to take a large amount of soils.Burning disposal can realize that the recycling of municipal refuse thermal energy, loss of weight, high temperature go out
The purpose of bacterium, have advantage in terms of environmental protection and the utilization of resources, therefore has obtained very fast development.However, waste incineration can be to big
Gas causes secondary pollution, it is impossible to which completely burned part stills need to fill, as the development and people of environmental science and technology are to environment
Quality requirement raising, it is necessary to actively find it is a kind of raising garbage regeneration energy and environmental benefit and resource recovery it is higher
Processing method.
Calcium carbide is one of base stock of synthetic organic chemical manufacturing industry, is the important source material of acetylene chemical industry, general more uses
Electrothermal way produces calcium carbide, i.e. quick lime melts reaction generation calcium carbide with carbon raw material in furnace of calcium carbide by high arc temperature.Calcium carbide
Industry is a highly energy-consuming, the industry of high pollution.At present, the raw material of calcium carbide is produced mainly using block semi-coke and block raw stone
Ash.Substantial amounts of pollution can be produced during semi-coke is produced.Find original of clean, the inexpensive carbon materials as production calcium carbide
Material is of great significance.
The content of the invention
It is a kind of new using house refuse next life electricity production stone the invention is intended to propose in view of problem existing in the prior art
Method, can realize the recycling of rubbish, and reduce the production cost of calcium carbide.
The present invention provides a kind of method using house refuse production calcium carbide, include the following steps：
A, house refuse is crushed, and sub-elects combustable organic thing；
B, pulverized bituminous coal and binding agent are added into the combustable organic thing, and is uniformly mixed, obtains mixed material；
C, the mixed material obtains moulding stick through forming processes；
D, the moulding stick is pyrolyzed, obtains material after pyrolysis oil gas and pyrolysis；
E, quick lime is added into material after the pyrolysis and carries out anoxybiotic smelting after mixing, obtains calcium carbide.
In some embodiments of the invention, the particle diameter ＜ 50mm of the combustable organic thing.
In some embodiments of the invention, the particle diameter ＜ 1mm of the pulverized bituminous coal.
As the preferred embodiment of the present invention, in the mixed material, the weight of the pulverized bituminous coal is described organic
The 20~30% of combustible weight.
As the preferred embodiment of the present invention, the binding agent is white clay and bentonitic mixture, wherein, it is described
White clay and the bentonitic quality proportioning are 1：1~3.
Further, in the mixed material, the weight of the binding agent for the combustable organic thing weight 10~
20%.
Further, the white clay and 150 μm of the bentonitic particle diameter ＜.
As the preferred embodiment of the present invention, the temperature when mixed material carries out forming processes is 100~200
℃。
Further, the time control of the pyrolytic process is 1.5~2h.
In some embodiments of the invention, the quality proportioning of material and the quick lime is 1 after the pyrolysis：1~
1.7。
Method proposed by the present invention using house refuse production calcium carbide, is realizing recycling, the minimizing of house refuse
While processing, raw material of industry calcium carbide can also be obtained.The processing cost and electricity of rubbish can be greatly reduced in the method for the present invention
The production cost of stone, realizes energy-saving purpose.
By theoretical calculation, method of the invention generates 1 ton of calcium carbide, traditional handicraft while 5 tons of house refuses are handled
In need to handle 1 ton of calcium carbide of 5 tons of house refuses and production respectively, at this time, method of the invention saves 450 than traditional handicraft~
800 yuan of cost.
Brief description of the drawings
Fig. 1 is the method flow schematic diagram that the present invention produces calcium carbide using house refuse.
Fig. 2 is the system schematic that the present invention produces calcium carbide using house refuse.
Embodiment
Below in conjunction with drawings and examples, the embodiment of the present invention is described in more details, so as to energy
The advantages of enough more fully understanding the solution of the present invention and its various aspects.However, specific embodiments described below and reality
Example is applied to be for illustrative purposes only, rather than limitation of the present invention.
As shown in Figure 1, the method provided by the invention using house refuse production calcium carbide, includes the following steps：
A, house refuse is crushed, sorting process, sub-elects combustable organic thing therein.
Wherein, the particle diameter ＜ 50mm of combustable organic thing.Preferably, the particle diameter ＜ 20mm of combustable organic thing.Because granularity compared with
Hour be conducive to convey and be molded, if undersized if can increase the energy consumption of shattering process, waste of energy.
B, pulverized bituminous coal and binding agent are added into above-mentioned combustable organic thing, and is together added in batch mixer and is mixed
Close, obtain mixed material after mixing.
Wherein, the granularity ＜ 1mm of pulverized bituminous coal.Preferably, 150 μm of the granularity ＜ of pulverized bituminous coal.Also, mixed material
In, the weight of pulverized bituminous coal is the 20~30% of combustable organic thing weight.
In this step, binding agent selects white clay and bentonitic mixture, wherein, white clay and bentonitic quality are matched somebody with somebody
Than for 1：1~3.The addition of binding agent is the 10~20% of combustable organic thing weight.Also, control white clay and bentonitic
150 μm of particle diameter ＜.Preferably, 75 μm of white clay and bentonitic particle diameter ＜ are controlled, particle diameter is smaller, is more conducive to subsequently obtain into
The preferable moulding stick of type effect.
C, mixed material is sent into molding machine and carries out extrusion forming processing, obtain moulding stick.
Wherein, the granularity of mixed material metabituminous coal coal dust is smaller is more conducive to be molded, and can reduce moulding stick and shaping
Frictional force between device, less energy loss, while the moulding stick of intensity higher can be obtained.
In mixed material, bentonitic addition can greatly improve the cold strength of moulding stick, also, white clay is a kind of glutinous
Native mineral, chemical composition are highly stable, contribute to maintain the calorific intensity of moulding stick at high temperature.
, first will shaping before mixed material is carried out extrusion forming processing as the preferred embodiment of the invention
Device carry out heating treatment, its temperature is increased to 100~200 DEG C, at this temperature by mixed material extrusion forming when, it is organic
Plastics in combustible can soften, and be also beneficial to the higher moulding stick of generation intensity.
D, the moulding stick that above-mentioned steps obtain is sent into pyrolysis installation and carries out pyrolysis processing, obtain pyrolysis oil gas and pyrolysis
Material afterwards.Wherein, the addition of white clay can make moulding stick maintain higher calorific intensity at a high temperature of pyrolysis.
In this step, during pyrolysis processing, the temperature of pyrolysis installation is controlled so that temperature slowly rises, and controls
The time of pyrolytic process is 1.5~2h.In some embodiments of the invention, the final temperature of pyrolysis installation is set as 700~800
℃。
Control pyrolytic process slowly heats up, and the volatile matter in moulding stick can be made slowly to volatilize, slow down and moulding stick is broken
Bad effect, and the crackle on moulding stick is reduced, be conducive to the calorific intensity for maintaining moulding stick higher.Meanwhile pulverized bituminous coal is being pyrolyzed
Gel can be produced in processing procedure, the inert substance of surrounding can be bonded, and is gradually cured with the rise of temperature, so that
The semicoke skeleton of high intensity is formed, helps to obtain material after the pyrolysis with higher thermal intensity.
E, by material after above-mentioned pyrolysis and quick lime after mixing, it is sent into closed calcium carbide furnace and carries out anoxybiotic smelting, obtains
To calcium carbide product.Preferably, quick lime selects lump lime.
In some embodiments of the invention, the quality proportioning of material and quick lime is 1 after controlling pyrolysis：1~1.7.
As the preferred embodiment of the present invention, the temperature for controlling anoxybiotic smelting process is 1800~2200 DEG C.
In above-mentioned steps, the particle size range of each material can need to be adjusted according to different technique.
The semi-coke used compared to traditional smelting process, the physical arrangement of the pyrolytic carbon produced after refuse pyrolysis are more thin
Pine, active higher, so as to improve reaction efficiency, reduces the reaction time, can speed up the generation of calcium carbide, and reduce energy consumption.
According to theoretical calculation, the method according to the invention prepares the process of calcium carbide, often handles about 5 tons of house refuses, energy
Enough production obtains 1 ton of calcium carbide.According to traditional processing procedure, the cost of 5 tons of house refuses is handled, if being calculated by burning disposal,
Need 750~1000 yuan；Meanwhile the cost for producing 1 ton of calcium carbide is 2500~2800 yuan.The method according to the invention, handles 5 tons
The cost that 1 ton of calcium carbide is obtained while house refuse is 2800~3000 yuan, cost-saved for conventional process
450~800 yuan.
As shown in Fig. 2, to utilize house refuse to produce the system schematic of calcium carbide in some embodiments of the present invention.This is
System includes sequentially connected rubbish warehouse 1, double-roll crusher 2, rotary screen 3, winnowing machine 4, the first batch bin 5, the first batch mixer
6th, ring mode extruder 7, rotary hearth furnace 8, the second batch bin 9, the second batch mixer 10, closed calcium carbide furnace 11.
Feed inlet by the house refuse in rubbish warehouse 1 by Belt Conveying to double-roll crusher 2, by house refuse into
Row is broken, then part dregs, food waste and other inorganic matters in house refuse are screened out into rotary screen 3 by Belt Conveying.From
The house refuse that rotary screen 3 transfers out is by Belt Conveying to winnowing machine 4, by selection by winnowing, by the plastics in house refuse, giving up
The organic matters such as paper are separated, so as to obtain combustable organic thing.
By combustable organic thing by Belt Conveying into the first batch bin 5, and pulverized bituminous coal is added into the first batch bin 5
It is uniformly mixed with binding agent, and the quality proportioning of three kinds of materials is controlled by burden balance, is then mixed via Belt Conveying to first
In material machine 6, mixed material is obtained after mixing.
Mixed material carries out extrusion forming into ring mode extruder 7 by Belt Conveying, obtains moulding stick.Moulding stick leads to
Cross Belt Conveying and pyrolysis processing is carried out into rotary hearth furnace 8, obtain material after pyrolysis oil gas and pyrolysis.Material passes through belt after pyrolysis
Hot sending adds quick lime thereto into the second batch bin 9, the quality proportioning of the two is controlled by burden balance, then by chain
Comb machine is sent into the second batch mixer 10 and is uniformly mixed, and mixed material is delivered in closed calcium carbide furnace 11 by bucket elevator, leads to
Cross anoxybiotic pyrolytic semlting and obtain calcium carbide.
The present invention is not intended to limit the type of each device in system, can complete the purpose of the present invention, realize the present invention's
Subject to effect.
Embodiment 1
By Domestic garbage crushing, combustable organic thing is sub-elected, the granularity of combustable organic thing is below 20mm.Then to organic
Add pulverized bituminous coal and binding agent in combustible, white clay and bentonitic quality proportioning are 1 in binding agent：1.It is also, every
In 100 kilograms of combustable organic things, 20 kilograms of pulverized bituminous coals and 10 kilograms of binding agents are added, three is put into batch mixer and is mixed
Close, obtain mixed material after mixing.The temperature of ring mode extruder is risen to 100 DEG C, mixed material is then sent into ring
Extrusion forming processing is carried out in mode extruder, obtains moulding stick.Moulding stick is sent into rotary hearth furnace and carries out pyrolysis processing, is controlled
Rotary hearth furnace slowly heats up, and when pyrolysis time is 1.5 small, final temperature is 750 DEG C, and heat is obtained after the petroleum resources in moulding stick is proposed
Material after solution.Material is 1 according to quality proportioning with lump lime after pyrolysis：1.5 after mixing, is heat-fed to closed calcium carbide furnace
In, at 2000 DEG C calcium carbide is obtained through anoxybiotic pyrolytic semlting.
Embodiment 2
By Domestic garbage crushing, combustable organic thing is sub-elected, the granularity of combustable organic thing is below 20mm.Then to organic
Add pulverized bituminous coal and binding agent in combustible, white clay and bentonitic quality proportioning are 1 in binding agent：2.It is also, every
In 100 kilograms of combustable organic things, 25 kilograms of pulverized bituminous coals and 15 kilograms of binding agents are added, three is put into batch mixer and is mixed
Close, obtain mixed material after mixing.The temperature of ring mode extruder is risen to 150 DEG C, mixed material is then sent into ring
Extrusion forming processing is carried out in mode extruder, obtains moulding stick.Moulding stick is sent into rotary hearth furnace and carries out pyrolysis processing, is controlled
Rotary hearth furnace slowly heats up, and when pyrolysis time is 2 small, final temperature is 750 DEG C, is pyrolyzed after the petroleum resources in moulding stick is proposed
Material afterwards.Material is 1 according to quality proportioning with lump lime after pyrolysis：1 after mixing, is heat-fed into closed calcium carbide furnace,
At 1800 DEG C calcium carbide is obtained through anoxybiotic pyrolytic semlting.
Embodiment 3
By Domestic garbage crushing, combustable organic thing is sub-elected, the granularity of combustable organic thing is below 20mm.Then to organic
Add pulverized bituminous coal and binding agent in combustible, white clay and bentonitic quality proportioning are 1 in binding agent：3.It is also, every
In 100 kilograms of combustable organic things, 30 kilograms of pulverized bituminous coals and 20 kilograms of binding agents are added, three is put into batch mixer and is mixed
Close, obtain mixed material after mixing.The temperature of ring mode extruder is risen to 200 DEG C, mixed material is then sent into ring
Extrusion forming processing is carried out in mode extruder, obtains moulding stick.Moulding stick is sent into rotary hearth furnace and carries out pyrolysis processing, is controlled
Rotary hearth furnace slowly heats up, and when pyrolysis time is 2 small, final temperature is 750 DEG C, is pyrolyzed after the petroleum resources in moulding stick is proposed
Material afterwards.Material is 1 according to quality proportioning with lump lime after pyrolysis：1.7 after mixing, is heat-fed to closed calcium carbide furnace
In, at 2200 DEG C calcium carbide is obtained through anoxybiotic pyrolytic semlting.
Finally it should be noted that：Obviously, above-described embodiment is only intended to clearly illustrate example of the present invention, and simultaneously
The non-restriction to embodiment.For those of ordinary skill in the field, can also do on the basis of the above description
Go out other various forms of changes or variation.There is no necessity and possibility to exhaust all the enbodiments.And thus drawn
Among the obvious changes or variations that Shen goes out is still in protection scope of the present invention.
Claims (10)
- A kind of 1. method using house refuse production calcium carbide, it is characterised in that include the following steps：A, house refuse is crushed, and sub-elects combustable organic thing；B, pulverized bituminous coal and binding agent are added into the combustable organic thing, and is uniformly mixed, obtains mixed material；C, the mixed material obtains moulding stick through forming processes；D, the moulding stick is pyrolyzed, obtains material after pyrolysis oil gas and pyrolysis；E, quick lime is added into material after the pyrolysis and carries out anoxybiotic smelting after mixing, obtains calcium carbide.
- 2. the according to the method described in claim 1, it is characterized in that, particle diameter ＜ 50mm of the combustable organic thing.
- 3. the according to the method described in claim 1, it is characterized in that, particle diameter ＜ 1mm of the pulverized bituminous coal.
- 4. according to the method described in claim 1, it is characterized in that, in the mixed material, the weight of the pulverized bituminous coal is The 20~30% of the combustable organic thing weight.
- 5. according to the method described in claim 1, it is characterized in that, the binding agent is white clay and bentonitic mixture, Wherein, the white clay and the bentonitic quality proportioning are 1:1~3.
- 6. according to the method described in claim 5, it is characterized in that, in the mixed material, the weight of the binding agent is institute State the 10~20% of combustable organic thing weight.
- 7. according to the method described in claim 5, it is characterized in that, the white clay and 150 μm of the bentonitic particle diameter ＜.
- 8. according to the method described in claim 1, it is characterized in that, the temperature when mixed material carries out forming processes is 100~200 DEG C.
- 9. according to the method described in claim 1, it is characterized in that, the time control of the pyrolytic process is 1.5~2h.
- 10. according to the method described in claim 1, it is characterized in that, the quality of material and the quick lime is matched somebody with somebody after the pyrolysis Than for 1:1~1.7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711363213.0A CN107986278A (en) | 2017-12-18 | 2017-12-18 | A kind of method using house refuse production calcium carbide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711363213.0A CN107986278A (en) | 2017-12-18 | 2017-12-18 | A kind of method using house refuse production calcium carbide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107986278A true CN107986278A (en) | 2018-05-04 |
Family
ID=62038930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711363213.0A Pending CN107986278A (en) | 2017-12-18 | 2017-12-18 | A kind of method using house refuse production calcium carbide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107986278A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886009A (en) * | 2010-06-29 | 2010-11-17 | 王永昌 | Household refuse organic compound fuel, method for producing same and special equipment system thereof |
| CN103708456A (en) * | 2013-12-25 | 2014-04-09 | 北京神雾环境能源科技集团股份有限公司 | Method for preparing calcium carbide |
| CN103708455A (en) * | 2013-12-25 | 2014-04-09 | 北京神雾环境能源科技集团股份有限公司 | Method for preparing calcium carbide |
| CN107265456A (en) * | 2017-07-20 | 2017-10-20 | 神雾环保技术股份有限公司 | The system and method that calcium carbide is prepared using solid waste pyrolysis |
| CN107337208A (en) * | 2017-07-20 | 2017-11-10 | 神雾环保技术股份有限公司 | A kind of system and method that calcium carbide is produced using biomass pyrolytic |
-
2017
- 2017-12-18 CN CN201711363213.0A patent/CN107986278A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101886009A (en) * | 2010-06-29 | 2010-11-17 | 王永昌 | Household refuse organic compound fuel, method for producing same and special equipment system thereof |
| CN103708456A (en) * | 2013-12-25 | 2014-04-09 | 北京神雾环境能源科技集团股份有限公司 | Method for preparing calcium carbide |
| CN103708455A (en) * | 2013-12-25 | 2014-04-09 | 北京神雾环境能源科技集团股份有限公司 | Method for preparing calcium carbide |
| CN107265456A (en) * | 2017-07-20 | 2017-10-20 | 神雾环保技术股份有限公司 | The system and method that calcium carbide is prepared using solid waste pyrolysis |
| CN107337208A (en) * | 2017-07-20 | 2017-11-10 | 神雾环保技术股份有限公司 | A kind of system and method that calcium carbide is produced using biomass pyrolytic |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101007955B (en) | Carbonized city garbage fuel block preparation method and its dedicated apparatus | |
| CN104087340B (en) | The system and method for the pyrolysis of waste that a kind of oil, gas, charcoal are adjustable | |
| CN204107965U (en) | A kind of town and country solid waste cooperative disposal and resource utilization system | |
| CN102504843B (en) | Heat accumulation type fuel gas radiation pipe rotary hearth furnace domestic garbage dry distillation method | |
| CN102500607A (en) | Method for performing pyrolysis uniting building-material utilization to rubbish oversize products | |
| CN103951153A (en) | Method and system for preparing carbon adsorbent material by mixing waste plastics with sludge | |
| JP2010534121A (en) | Processing method to thoroughly recycle solid waste | |
| CN102807905A (en) | Method for preparing refuse derived fuel for cement kiln with household refuse and straw | |
| CN101612629A (en) | A kind of city house refuse treatment method and device thereof | |
| CN1465656A (en) | Waste plastics and coal cocoaking treatment method | |
| CN104673424A (en) | Method for preparing novel energy material | |
| CN101618954A (en) | Process system for processing municipal domestic waste by cement rotary kiln | |
| CN104845696A (en) | Method for preparing biomass pellet fuel by mulberry branch fermentation wastes | |
| CN2918425Y (en) | Pyrogenation retort | |
| CN105733734A (en) | Method and device for preparing fuel by means of mixing coke powder with sludge from sewage plants | |
| CN1296150C (en) | Process for treating urban house refuse using dry method cement production system | |
| CN106566588A (en) | Method for preparing forming fuel by utilizing sludge | |
| CN104357119A (en) | Biomass carbon particle and preparation method thereof | |
| CN102311833A (en) | Method of preparing regenerated coal from municipal solid waste | |
| CN104059681B (en) | A kind of regenerative gas radiator tube rotating bed oil shale distillation and shale slag utilize technique | |
| CN201589272U (en) | Waste disposal system applied in production of cement dry-process rotary kiln | |
| CN101829671A (en) | Clean energy utilization method for municipal solid wastes | |
| CN102827662A (en) | Preparation method applicable to treating garbage derivate by being jointed with cement kiln | |
| CN209577703U (en) | Domestic garbage pyrolysis processing system | |
| CN107986278A (en) | A kind of method using house refuse production calcium carbide |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180504 |
|
| WD01 | Invention patent application deemed withdrawn after publication |