CN1570045A - Fluorine fixing shaped coal production method - Google Patents
Fluorine fixing shaped coal production method Download PDFInfo
- Publication number
- CN1570045A CN1570045A CN 03150300 CN03150300A CN1570045A CN 1570045 A CN1570045 A CN 1570045A CN 03150300 CN03150300 CN 03150300 CN 03150300 A CN03150300 A CN 03150300A CN 1570045 A CN1570045 A CN 1570045A
- Authority
- CN
- China
- Prior art keywords
- fluorine
- coal
- solid
- add
- solid fluorine
- 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
Landscapes
- Processing Of Solid Wastes (AREA)
Abstract
The invention provides a fluorine fixing shaped coal production method which consists of, disintegrating the fluorine capturing addition agent, sieving into powder, drying the clay, disintegrating, sieving into powder, charging fluorine-fixing addition agent and powder form clay as fluorine-fixing adjuvant, charging into coal, mixing homogeneously, obtaining hybrid coal dust, charging water and pressing.
Description
Technical field
The present invention relates to a kind of manufacture method of solid fluorine moulded coal, more particularly, relate to a kind of manufacture method that calcium is the solid fluorine moulded coal of fluorine fixing material that is added with.
Background technology
Fluorine is one of harmful element in the coal, and the fluorine content in the different coals is bigger.The fluorine content range is 17～3088mg/kg in China's coal, and fluorine content is between 50～300mg/kg in most of coal, and mean fluorine content is 200mg/kg.Fluorine, sulphur content in the geographic fire coal of coal-fired fluorosis are all higher.
Fluorine is the extremely strong non-metallic element of chemically reactive, and fluorine mainly exists with the inorganics form in the coal, and fluorochemical exists with hydroxyl fluorapatite form in the minority coal.Coal can make the fluorochemical in the coal decompose when high-temp combustion, and most of fluorine forms HF and a spot of SiF
4, CF
4Be drained into etc. the pollutent of gaseous form and cause topsoil in the atmosphere.Airborne oxysulfide, fluorochemical combine with airborne moisture and easily form acid mist, bring harm for farm crop and buildings etc.
Fire coal causes that fluorosis is distributed in 12 provinces of China, has found 197 of lesiones, dental fluorosis medical record 650.4 ten thousand people, osteofluorosis people 108.8 ten thousand people.Change the cooking stove measure in the employing of coal-fired fluorine lesion over past ten years and fall fluorine, reduced Pollutant levels such as indoor fluorine, sulphur, obtain better effects, but pollutent is entered in the atmosphere, obviously increased the weight of outdoor pollution.How administering the indoor and outdoor fluoride pollution cost-effectively is a urgent subject.
Technical scheme
The purpose of this invention is to provide a kind of manufacture method of solid fluorine moulded coal, so that administer the pollution of coal fire discharged fluorine, sulphur cost-effectively to indoor and outdoor surroundings.
The objective of the invention is to reach by the following technical programs:
A kind of manufacture method of solid fluorine moulded coal is characterized in that this method may further comprise the steps:
(1) will consolidate fluoride additive and pulverize, sieve that it is Powdered to make;
(2) with the clay airing, pulverize, sieve that it is Powdered to make;
(3) be added in the coal with described pulverous solid fluoride additive and as the Powdered clay of consolidating the fluorine auxiliary, thorough mixing is even, the add-on of described solid fluoride additive is 12～25Wt%, and the add-on of described solid fluorine auxiliary is 15～36Wt%, gets mixed coal powder;
(4) add entry in described mixed coal powder, add-on is no more than 7Wt%, is pressed into solid fluorine moulded coal with the standard type briquette shaping machine.
A kind of preferred version is characterized in that: described solid fluoride additive can be lime, acetylene waste residue or lime carbonate, also can be two or more mixture wherein.
A kind of preferred version is characterized in that: the add-on of described solid fluoride additive is 15～22Wt%, and the add-on of described solid fluorine auxiliary is 18～30Wt%.
A kind of preferred version is characterized in that: the add-on of described solid fluoride additive is 17～21Wt%, and the add-on of described solid fluorine auxiliary is 21～30Wt%.
A kind of preferred version is characterized in that: described pulverous solid fluoride additive is 60～80 orders; Described pulverous clay is 60～80 orders.
The solid fluorine principle of technical solution of the present invention is: lime (CaO), lime carbonate (CaCo
3), acetylene waste residue calcium such as (CaO) be in the additive calcium at high temperature with coal in fluorine, reaction of Salmon-Saxl, generate the Calcium Fluoride (Fluorspan) (CaF of indissoluble
2), calcium sulfate (CaSO
4) wait compound.Also can add clay in order to make moulded coal, increase the degree of adhesion of moulding, moulded coal also is convenient to transportation and is stored.During burning, the fluorine in the coal also can generate aluminum fluoride (AIF with aluminium, the magnesium compound reaction in the clay
3) and magnesium fluoride (MgF
2), thereby improve solid fluorine efficient, also can regulate coal-fired ash fusion point and combustionproperty simultaneously.These fluorine, sulphur compound are fixed in the cinder at last, have reduced coal-fired fluorine, sulphur discharges atmospheric pollution.
Calcium is that the add-on of additive is relevant with calcium contents wherein, and calcium contents is high more, and add-on can be low more; In addition with coal in fluorine content also relevant, the fluorine content in the coal is high more, calcium is that the add-on of additive is also high more.The add-on of clay except with coal in fluorine content have outside the Pass, also relevant with silicon-dioxide, aluminium sesquioxide and magnesian content in the clay.
Beneficial effect of the present invention is:
1. in coal, add calcium and be the release of additive fluorine can reduce fire coal the time, generate infusible Calcium Fluoride (Fluorspan) and be fixed in the cinder.Gu fluorine efficient is general all greater than 80%.
2. adding calcium in coal is that additive can also be consolidated sulphur, the release of oxysulfide when reducing fire coal.Gu sulphur efficiency is general all greater than 80%.
3. select for use the acetylene waste residue as fluorine fixing material, but utilization of waste material also can obtain and the essentially identical solid fluorine effect of lime.
4. add clay and can improve solid fluorine effect in fire coal, also can improve the bounding force of coal, processing is easy to moulding, improves the ash fusion point of coal, can carry out solid fluorine and solid sulphur at 800-1050 ℃.
The invention will be further described below by the drawings and specific embodiments, but and do not mean that limitation of the present invention.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
Be the specific embodiment of the present invention below
Embodiment 1
Iron furnace burning honeycomb briquette adds the solid fluorine efficient of lime carbonate
As shown in Figure 1, lime carbonate (industrial raw material) is pulverized, is sieved it is Powdered to make 70 orders; With the clay airing, pulverize, sieve that it is Powdered to make 70 orders; Above-mentioned pulverous lime carbonate as solid fluoride additive, is added clay in the low fluorine hard coal in Beijing as solid fluorine auxiliary, and thorough mixing is even, gets mixed coal powder; Add entry in above-mentioned mixed coal powder, add-on 5Wt% is pressed into cellular moulded coal with the standard type briquette shaping machine by national GB/T13593-92 standard.
Select Beijing burning honeycomb briquette iron furnace for use, and installation galvanized iron chimney 5 meters (high 2.5 meters) stretches to outdoor, 30 centimetres, 60 centimeters punching (10 millimeters of diameters) above the iron furnace smoke outlet, the glass sampling bottle inlet mouth on the air sampler that detecting instrument factory in Beijing is produced connect a copper pipe and insert in the flue central position and gather when coal-fired fluorochemical and sulfurous gas sample in the air.
Measure content of fluoride in the air with Fluoride ion selective electrode method; With tetrachloro mercury sodium---hydrochloric acid Pararosaniline colorimetry (GB8970-88) is measured content of sulfur dioxide in the air.Result such as table 1.
Table 1. iron furnace burning honeycomb briquette adds the solid fluorine efficient of lime carbonate
| Coal | Contrast | Gu behind the fluorine | |||||
| Coal: soil | Sample number | Fluorine concentration (mg/m 3) | Coal: soil: CaCO 3 | Sample number | Fluorine concentration (mg/m 3) | Gu fluorine efficient (%) | |
| The fluorine hard coal is hanged down in Beijing | ????2∶1 | ????9 | ?1.34 | ??2∶0.5∶0.5 | ???10 | ??0.21 | ????84.3 |
| ????2∶1 | ????9 | ?1.34 | ??2∶1.0∶0.5 | ???6 | ??0.49 | ????63.4 | |
| ????3∶1 | ????9 | ?1.97 | ??3∶1.0∶0.5 | ???7 | ??0.47 | ????88.2 | |
Embodiment 2
Iron furnace burning honeycomb briquette adds the solid fluorine efficient of lime
Other is identical with embodiment 1, and lime is replaced lime carbonate, and high fluorine hard coal is replaced low fluorine hard coal.Result such as table 2.
Table 2 iron furnace burning honeycomb briquette adds the solid fluorine efficient of lime
| Coal | Contrast | Gu behind the fluorine | |||||
| Coal: native Wt | Sample number | Fluorine concentration (mg/m 3) | Coal: soil: lime Wt | Sample number | Fluorine concentration (mg/m 3) | Gu fluorine efficient (%) | |
| The fluorine hard coal is hanged down in Beijing | ????2∶1 | ????9 | ????1.34 | ??2∶0.5∶0.5 | ????5 | ????0.19 | ????85.8 |
| ????2∶1 | ????9 | ????1.34 | ??2∶1.0∶0.3 | ????6 | ????0.15 | ????88.8 | |
| ????2∶1 | ????9 | ????1.34 | ??2∶1.0∶0.5 | ????6 | ????0.16 | ????88.1 | |
| ????3∶1 | ????6 | ????1.97 | ??3∶0.5∶0.5 | ????11 | ????0.29 | ????85.3 | |
| ????3∶1 | ????6 | ????1.97 | ??3∶1.0∶0.5 | ????11 | ????0.34 | ????82.7 | |
| The high fluorine hard coal in Beijing | ????2∶1 | ????6 | ????3.87 | ??2∶1∶0.5 | ????6 | ????0.60 | ????84.5 |
The solid fluorine efficient that adds lime as can be seen from table 1, table 2 result is up to 88.8% all more than 82.7%.The solid fluorine efficient that adds lime carbonate is up to 88.2% more than 63.4%.
Embodiment 2
Iron furnace burning different areas honeycomb briquette adds the solid fluorine efficient of lime
Other is identical with embodiment 1, uses Hubei Zigui hard coal and Beijing hard coal, result such as table 3.
Table 3 iron furnace burning different areas honeycomb briquette adds the solid fluorine efficient of lime
| Coal | Coal: soil 3: 1 | Coal: soil; Lime 3: 0.5: 0.5 | Gu fluorine efficient (%) | Coal: soil 3: 1 | Coal: soil: lime 3: 0.5: 0.5 | Gu sulphur efficiency (%) | ||||
| Sample number | Fluorine concentration (mg/m 3) | Sample number | Fluorine concentration (mg/m 3) | Sample number | ???SO 2?(mg/m 3) | Sample number | ???SO 2?(mg/m 3) | |||
| The fluorine hard coal is hanged down in Beijing | ??10 | ??16.14 | ??20 | ??0.46 | ??97.1 | ??13 | ??42.08 | ??12 | ??2.99 | ??92.9 |
| Fluorine hard coal in the Zigui of Hubei | ??3 | ??2.79 | ??20 | ??0.29 | ??89.6 | ??2 | ??913.76 | ??9 | ??123.95 | ??86.4 |
As can be seen from Table 3, add the solid fluorine efficient of lime in the coal greater than 89.6%; Gu sulphur efficiency is greater than 86.4%.
Claims (5)
1, a kind of manufacture method of solid fluorine moulded coal is characterized in that this method may further comprise the steps:
(1) will consolidate fluoride additive and pulverize, sieve that it is Powdered to make;
(2) with the clay airing, pulverize, sieve that it is Powdered to make;
(3) be added in the coal with the described pulverous solid fluoride additive of 12～25Wt% and as the described Powdered clay of 15～36Wt% of solid fluorine auxiliary, thorough mixing is even, must mixed coal powder;
(4) add entry in described mixed coal powder, add-on is no more than 7Wt%, is pressed into solid fluorine moulded coal with the standard type briquette shaping machine.
2, the manufacture method of solid fluorine moulded coal according to claim 1 is characterized in that: described solid fluoride additive can be lime, acetylene waste residue or lime carbonate.
3, the manufacture method of solid fluorine moulded coal according to claim 1 and 2 is characterized in that: described solid fluoride additive is 60～80 orders; Described solid fluorine auxiliary is 60～80 orders.
4, the manufacture method of solid fluorine moulded coal according to claim 3 is characterized in that: the add-on of described solid fluoride additive is 15～22Wt%, and the add-on of described solid fluorine auxiliary is 18～30Wt%.
5, the manufacture method of solid fluorine moulded coal according to claim 3 is characterized in that: the add-on of described solid fluoride additive is 17～21Wt%, and the add-on of described solid fluorine auxiliary is 21～30Wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03150300 CN1570045A (en) | 2003-07-24 | 2003-07-24 | Fluorine fixing shaped coal production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03150300 CN1570045A (en) | 2003-07-24 | 2003-07-24 | Fluorine fixing shaped coal production method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1570045A true CN1570045A (en) | 2005-01-26 |
Family
ID=34472689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03150300 Pending CN1570045A (en) | 2003-07-24 | 2003-07-24 | Fluorine fixing shaped coal production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1570045A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103923721A (en) * | 2014-05-08 | 2014-07-16 | 重庆大学 | Fluoride solidifying agent for treating fluorine pollution caused by burning coal and preparation method and application method thereof |
| CN107177390A (en) * | 2017-06-19 | 2017-09-19 | 中国科学院地理科学与资源研究所 | A kind of reduction bone coal uses area's fluorine, the moulded coal of arsenic pollution |
| CN109201703A (en) * | 2018-09-17 | 2019-01-15 | 新疆生产建设兵团第八师天山铝业股份有限公司 | A kind of curing agent of electrolytic aluminium slag from delining soluble fluorine |
-
2003
- 2003-07-24 CN CN 03150300 patent/CN1570045A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103923721A (en) * | 2014-05-08 | 2014-07-16 | 重庆大学 | Fluoride solidifying agent for treating fluorine pollution caused by burning coal and preparation method and application method thereof |
| CN103923721B (en) * | 2014-05-08 | 2015-07-15 | 重庆大学 | Fluoride solidifying agent for treating fluorine pollution caused by burning coal and preparation method and application method thereof |
| CN107177390A (en) * | 2017-06-19 | 2017-09-19 | 中国科学院地理科学与资源研究所 | A kind of reduction bone coal uses area's fluorine, the moulded coal of arsenic pollution |
| CN109201703A (en) * | 2018-09-17 | 2019-01-15 | 新疆生产建设兵团第八师天山铝业股份有限公司 | A kind of curing agent of electrolytic aluminium slag from delining soluble fluorine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101293170B (en) | Composite sulphur dioxide desulfurizing agent and preparation method thereof | |
| CN109248673A (en) | A kind of method that resource utilization discards active carbon realization agglomeration for iron mine NOx and dioxin emission reducing | |
| CN109384225B (en) | Method for producing desulfurization and denitrification active carbon | |
| CN1137251C (en) | Sulfur-fixing dust-eliminating combustion-supporting briquet additive | |
| CN1654378A (en) | Method for drying sludge by residual heat from boiler fume | |
| CN111359422A (en) | Efficient dry deacidification device and method for waste incineration flue gas | |
| CN1570045A (en) | Fluorine fixing shaped coal production method | |
| CN1736559A (en) | Ammonia-ammonia sulfate dry type flue gas desulfurizing denitrifying equipment and technique | |
| CN1772662A (en) | Simultaneous sludge method during cement production | |
| CN1248483A (en) | Flue gas desulfurizing agent and method | |
| CN1421515A (en) | Method of reducing the exhausted toxic heavy metal pollutent in fume of coal-burning boiler | |
| CN104629848A (en) | Granular biomass fuel and preparation method thereof | |
| CN1556349A (en) | Domestic garbage treatment and cement rotary kiln combined production technology | |
| CN1207084C (en) | Method of flue gas desulfurization by through steam to toransport materiel | |
| CN207562614U (en) | A kind of waste gas treatment equipment stovepipe rain-proof structure | |
| CN109181646B (en) | Dust suppressant for coal-fired power plant for promoting fine particle agglomeration | |
| CN112090252B (en) | Modified desulfurized fly ash for fixing carbon dioxide and preparation method thereof | |
| CN106118803B (en) | House refuse low temperature pyrogenation stove Nei bioxin inhibitor and preparation method and application | |
| CN1216971C (en) | Fluoride-fixing fuel and its production process | |
| CN2804615Y (en) | Burner able to burn mixed live substance and coal powder and reburning denitration of the same | |
| CN1226072C (en) | Process for using mineralized garbag to clemaning fume by dry method and preparing compound fertilizer | |
| CN1234822C (en) | Fluorine capturing shaped coal fuel for stone coal and its production method | |
| CN1569311A (en) | Highly effective defluorination agent for combustion coal smoke and preparation method thereof | |
| CN212215079U (en) | Bypass air-bleeding dust-removing flue gas secondary treatment device | |
| CN1546616A (en) | Fluorine capturing fuel with enwrapped stone coal as main material and its production method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |