CN104722196A - Desulfurization system before combustion of coal by microwave treatment - Google Patents
Desulfurization system before combustion of coal by microwave treatment Download PDFInfo
- Publication number
- CN104722196A CN104722196A CN201510014916.7A CN201510014916A CN104722196A CN 104722196 A CN104722196 A CN 104722196A CN 201510014916 A CN201510014916 A CN 201510014916A CN 104722196 A CN104722196 A CN 104722196A
- Authority
- CN
- China
- Prior art keywords
- coal
- microwave
- microwave treatment
- pipe
- before combustion
- 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 invention relates to a desulfurization system before combustion of coal by microwave treatment. The desulfurization system comprises a magnetic separator, a microwave transmitter, a reaction pipeline and a recycling device, wherein the magnetic separator is connected with an input end of the reaction pipeline; the microwave generator is arranged on the upper end of the reaction pipeline; the recycling device is arranged on the lower end of the recycling pipeline; the magnetic separator separates high-sulfur coal by utilizing periodic pulsation high-gradient magnetic separation; the microwave transmitter performs microwave treatment on coal, and increases the magnetism of pyrite in coal; the reaction pipeline mixes a desulfurizing agent and coal to remove sulfur; the recycling device collects minerals after desulfurization. The desulfurization system can achieve assembly line desulfurization, performs magnetic separation, microwave, desulfurization and recycling successively, and improve the desulfurization precision greatly.
Description
Technical field
The present invention relates to desulphurization system field, particularly relate to a kind of coal desulfurization before combustion system of microwave treatment.
Background technology
In sulfur removal technology traditional at present, after desulfurizing agent mixes with flue dust, react voluntarily in reaction tower, after treatment, the flue gas after purification is discharged through the upper end of reaction tower.In course of reaction, after desulfurizing agent mixes with flue dust, the reaction of element sulphur in desulfurizing agent and flue dust is only relied on to consume sulfur dioxide.But, owing to carrying out desulfurization to flue dust in combustion, the poor quality of coal burning, and easily pollute, sulfur removal technology is complicated.
In view of above-mentioned defect, creator of the present invention obtains this creation finally through research and practice.
Summary of the invention
The object of the present invention is to provide a kind of coal desulfurization before combustion system of microwave treatment, in order to overcome above-mentioned technological deficiency.
For achieving the above object, the invention provides a kind of coal desulfurization before combustion system of microwave treatment, comprise magnetic separator, microwave emitter, reacting pipe and retracting device, described magnetic separator is connected with the input of reacting pipe, microwave generator is arranged on the upper end of reacting pipe, and retracting device is arranged on the lower end of recovery channel;
Described magnetic separator carries out sorting to utilizing periodically pulsing high-gradient magnetic separation to sulphur coal; Described microwave emitter, it carries out microwave treatment to coal, increases pyrite magnetic in coal; Desulfurizing agent mixes with coal and carries out desulfurization by described reacting pipe; Described retracting device, collects the mineral matter after desulfurization.
Further, described magnetic separator comprises ore discharge pipe, mineral-feeding pipe, coil, upper yoke plate, lower yoke plate and separation ring; Described coil is arranged on the both sides of ore discharge pipe and mineral-feeding pipe, and described separation ring is arranged on the sidepiece of yoke plate and lower yoke plate, and magnet is by upper and lower yoke plate, and long and short yoke pin and coil are formed.
Further, the square hollow copper conductor coiling of 14 × 14 × 3.5mm of described coil, with epoxy-mica glass tape and expoxy glass silk ribbon layering 1/2 around the folded turn-to-turn insulation as wire.
Further, described separation ring, it is made through clod wash, welding and machined with not magnetic stainless steel plate.
Further, the input of described reacting pipe is provided with the first negative-pressure air fan, and the output of reacting pipe is provided with the second negative-pressure air fan, and described reacting pipe is the straight pipeline of level, arranges the pipe section of inclination at input and output.
Further, be provided with shutter alternately in described reacting pipe, described shutter inclination certain angle is arranged, and is provided with plastic net, is hole in the middle of plastic net.
Further, the bottom of reacting pipe is can folding, and the detachable upper cover of reacting pipe unloads.
Further, the top cap of described reacting pipe is connected on the upper end open of reacting pipe, microwave generator is connected with in the upper end of upper cover, each microwave generator comprises transformer, rectifier, magnetron and follower, said elements connects successively, follower exports microwave, and described transformer provides suitable voltage; Described rectifier 82 produces direct current; Described magnetron produces microwave, is exported by coupled follower.
Further, be also provided with Ju Ye mechanism in the lower end of the bottom of described reacting pipe, it is bent plate alternately, and it comprises the first bending part and the second bending part, and wherein, the length of the first described bending part is longer than the length of the second bending part; The bending angle of the first described bending part is less than the bending angle of the second bending part.
Further, described retracting device comprises accumulator tank, and the lower end of accumulator tank is the poly-slag chute tilted, and is connected with recovery tube, the mineral mixture after sulfuration at the lowest part of poly-slag chute, enters in recovery tube reclaim through accumulator tank, poly-slag chute.
Beneficial effect of the present invention is compared with prior art: inventive desulfurization system, can realize streamlined desulfurization, successively through magnetic separation, microwave, desulfurization and recovery, substantially increases the precision of desulfurization.
Accompanying drawing explanation
Fig. 1 is the structural representation of the coal desulfurization before combustion system of microwave treatment of the present invention;
Fig. 2 is the structural representation of Microwave emission equipment of the present invention;
Fig. 3 is the structural representation of negative-pressure air fan of the present invention;
Fig. 4 is the structural representation of duct bottom of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, to above-mentioned being described in more detail with other technical characteristic and advantage of the present invention.
Refer to shown in Fig. 1, it is the structural representation of the coal desulfurization before combustion system of microwave treatment, the present invention includes magnetic separator, microwave emitter 20, reacting pipe 43 and retracting device, described magnetic separator is connected with the input of reacting pipe 43, microwave generator 20 is arranged on the upper end of reacting pipe 43, and retracting device is arranged on the lower end of recovery channel.
Described magnetic separator carries out sorting to utilizing periodically pulsing high-gradient magnetic separation to sulphur coal; Described microwave emitter 20, it carries out microwave treatment to coal, increases pyrite magnetic in coal; Desulfurizing agent mixes with coal and carries out desulfurization by described reacting pipe 43; Described retracting device, collects the mineral matter after desulfurization.
The sweetening process of coal desulfurization before combustion system of the present invention is:
Step a, by coal grinding after separator is separated, make the coal dust being applicable to burning, diameter is between 2-3mm;
Step b, carries out force analysis in magnetometric analysis and high gradient sorting magnetic field to the mineral in coal, utilizes periodically pulsing high-gradient magnetic separation to carry out sorting to sulphur coal; Further, microwave coal processes, and increases pyrite magnetic in coal;
The microwave frequency adopted is 20-25GHZ; Magnetic flux density is 1.8-1.85T, and pan feeding dynamics is-68 ~-72 orders, and pulse number is 189-198rpm;
Step c, after above-mentioned process, mixes the calcium phosphate of aforementioned proportion, lime stone with coal, and is ground by mixture, be separated mineral matter wherein; , vaporized by ethanol according to aforementioned proportion at the temperature of 250-280 degree, with nitrogen and oxygen mix, the mixture through above-mentioned grinding mixes with mist meanwhile, and the flow velocity of mist is 25-28ml/min, desulfurization.
Shown in figure Fig. 1, described magnetic separator comprises ore discharge pipe 11, mineral-feeding pipe 12, coil 13, upper yoke plate 14, lower yoke plate 15 and separation ring 16; Described coil 13 is arranged on the both sides of ore discharge pipe 11 and mineral-feeding pipe 12, and described separation ring 16 is arranged on the sidepiece of yoke plate 14 and lower yoke plate 15, and magnet is by upper and lower yoke plate, and long and short yoke pin and coil are formed.Yoke DT electrical pure iron breaking down blank manufactures.The coil square hollow copper conductor of 14 × 14 × 3.5mm (hole dimension 7 × 7mm) coiling.With epoxy-mica glass tape and expoxy glass silk ribbon layering 1/2 around the folded turn-to-turn insulation as wire.Line cake interlayer adds one deck expoxy glass pieces of cloth, and whole coil glass tape is tied up, then through impregnation process.Coil adopts demineralized water cooling.
Separation ring 16, it is made through clod wash, welding and machined with not magnetic stainless steel plate.
Sealing system: in high gradient magnetic separator, the ore deposit mode of giving of ore pulp pillar can ensure there is uniform fluid dynamics condition in whole sorting space, thus separative efficiency is improved, also ore pulp can be avoided directly to wash away magnetizing mediums simultaneously, extend the service life of magnetizing mediums widely, this is for steel wool or thin expanded metal lath class magnetizing mediums individual key especially.
In order to reach ore pulp pillar to the technical requirement in ore deposit, need the sealing system of design separation ring under rotation condition.Sealing system is by upper and lower seal cover board, circumferential seal rubber ring, and radial rubber strip and press water feed the parts such as passage and form.By the seepage of press water, the dynamic seal (packing) pair that rubber ring and cover plate are formed is lubricated, and ore pulp is not leaked, and the pressure of water need be greater than ore pulp column pressure.
The output of described ore discharge pipe 11 is connected with the input of reacting pipe by pipeline 43.
In the present invention, the input of described reacting pipe 43 is provided with the first negative-pressure air fan 41, the output of reacting pipe is provided with the second negative-pressure air fan 42, in the present embodiment, described reacting pipe 43 is the straight pipeline of level, arranges the pipe section of inclination at input and output.In the present embodiment, coal enters the bottom of reacting pipe 43 from pipeline 43, and under the effect of negative-pressure air fan, desulfurizing agent is through reacting pipe.
Desulfurizing agent is the mixture of water, ethanol, calcium phosphate in the present invention, and the steam of calcium phosphate powder and water, ethanol enters reacting pipe 43 through negative-pressure air fan effect, in reacting pipe, carry out desulfurization.
Be provided with shutter 44 alternately in described reacting pipe 43, described shutter 44 certain angle that tilts is arranged, and being provided with plastic net, is hole in the middle of plastic net; Desulfurizing agent can pass through this hole, and steam, through shutter, runs into shutter cooling, mixes with the coal of lower end, accelerate desulfurization process.The design of above-mentioned shutter, adds the precision of desulfurization.
The bottom 45 of reacting pipe is in the present invention can folding, after desulphurization reaction completes, opens bottom 45, reacted mineral compound can be made to enter in the retracting device of lower end.
The upper cover 21 of reacting pipe 43 is detachable, it is connected to the upper end open of reacting pipe 43, microwave generator 20 is connected with in the upper end of upper cover 21, each microwave generator comprises transformer 81, rectifier 82, magnetron 83 and follower 84, said elements connects successively, follower 84 exports microwave, and described transformer 81 provides suitable voltage, produces the voltage of 30V in the present embodiment; Described rectifier 82 produces direct current; Described magnetron 83 produces microwave, is exported by coupled follower 84.
Also be provided with Ju Ye mechanism 46 in the lower end of the bottom 45 of described reacting pipe, it is bent plate alternately, and it comprises the first bending part 62 and the second bending part 61, and wherein, the length of the first described bending part 62 is longer than the length of the second bending part 61; The bending angle of the first described bending part 62 is less than the bending angle of the second bending part 61.Steam is from after shutter flows down, and first through the first bending part 62, then through the second bending part 61, because the first bending part 62 length is large, angle of inclination is little, so that more poly collection steam liquefied, then through the second bending part 61, is gathered on bottom 45.
Described retracting device comprises accumulator tank 51, the lower end of accumulator tank 51 is the poly-slag chute 52 tilted, be connected with recovery tube 54 at the lowest part 53 of poly-slag chute 52, the mineral mixture after sulfuration, enter in recovery tube 54 reclaim through accumulator tank 51, poly-slag chute 52.
Inventive desulfurization system, can realize streamlined desulfurization, successively through magnetic separation, microwave, desulfurization and recovery, substantially increases the precision of desulfurization.
The foregoing is only preferred embodiment of the present invention, is only illustrative for invention, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes in the spirit and scope that invention claim limits to it, amendment, even equivalence, but all will fall within the scope of protection of the present invention.
Claims (10)
1. the coal desulfurization before combustion system of a microwave treatment, it is characterized in that, comprise magnetic separator, microwave emitter, reacting pipe and retracting device, described magnetic separator is connected with the input of reacting pipe, microwave generator is arranged on the upper end of reacting pipe, and retracting device is arranged on the lower end of recovery channel;
Described magnetic separator carries out sorting to utilizing periodically pulsing high-gradient magnetic separation to sulphur coal; Described microwave emitter, it carries out microwave treatment to coal, increases pyrite magnetic in coal; Desulfurizing agent mixes with coal and carries out desulfurization by described reacting pipe; Described retracting device, collects the mineral matter after desulfurization.
2. the coal desulfurization before combustion system of microwave treatment according to claim 1, is characterized in that, described magnetic separator comprises ore discharge pipe, mineral-feeding pipe, coil, upper yoke plate, lower yoke plate and separation ring; Described coil is arranged on the both sides of ore discharge pipe and mineral-feeding pipe, and described separation ring is arranged on the sidepiece of yoke plate and lower yoke plate, and magnet is by upper and lower yoke plate, and long and short yoke pin and coil are formed.
3. the coal desulfurization before combustion system of microwave treatment according to claim 2, it is characterized in that, the square hollow copper conductor coiling of 14 × 14 × 3.5mm of described coil, with epoxy-mica glass tape and expoxy glass silk ribbon layering 1/2 around the folded turn-to-turn insulation as wire.
4. the coal desulfurization before combustion system of microwave treatment according to claim 3, is characterized in that, described separation ring, and it is made through clod wash, welding and machined with not magnetic stainless steel plate.
5. the coal desulfurization before combustion system of microwave treatment according to claim 1, it is characterized in that, the input of described reacting pipe is provided with the first negative-pressure air fan, the output of reacting pipe is provided with the second negative-pressure air fan, described reacting pipe is the straight pipeline of level, arranges the pipe section of inclination at input and output.
6. the coal desulfurization before combustion system of microwave treatment according to claim 5, it is characterized in that, be provided with shutter alternately in described reacting pipe, described shutter inclination certain angle is arranged, being provided with plastic net, is hole in the middle of plastic net.
7. the coal desulfurization before combustion system of microwave treatment according to claim 5, is characterized in that, the bottom of reacting pipe is can folding, and the detachable upper cover of reacting pipe unloads.
8. the coal desulfurization before combustion system of microwave treatment according to claim 7, it is characterized in that, the top cap of described reacting pipe is connected on the upper end open of reacting pipe, microwave generator is connected with in the upper end of upper cover, each microwave generator comprises transformer, rectifier, magnetron and follower, said elements connects successively, and follower exports microwave, and described transformer provides suitable voltage; Described rectifier 82 produces direct current; Described magnetron produces microwave, is exported by coupled follower.
9. the coal desulfurization before combustion system of microwave treatment according to claim 7, it is characterized in that, Ju Ye mechanism is also provided with in the lower end of the bottom of described reacting pipe, it is bent plate alternately, it comprises the first bending part and the second bending part, wherein, the length of the first described bending part is longer than the length of the second bending part; The bending angle of the first described bending part is less than the bending angle of the second bending part.
10. the coal desulfurization before combustion system of microwave treatment according to claim 7, it is characterized in that, described retracting device comprises accumulator tank, the lower end of accumulator tank is the poly-slag chute tilted, recovery tube is connected with at the lowest part of poly-slag chute, mineral mixture after sulfuration, enters in recovery tube reclaim through accumulator tank, poly-slag chute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014916.7A CN104722196A (en) | 2015-01-09 | 2015-01-09 | Desulfurization system before combustion of coal by microwave treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510014916.7A CN104722196A (en) | 2015-01-09 | 2015-01-09 | Desulfurization system before combustion of coal by microwave treatment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104722196A true CN104722196A (en) | 2015-06-24 |
Family
ID=53446974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510014916.7A Pending CN104722196A (en) | 2015-01-09 | 2015-01-09 | Desulfurization system before combustion of coal by microwave treatment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104722196A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105132073A (en) * | 2015-09-07 | 2015-12-09 | 重庆大学 | Method for desulphurization through oxidation of high-sulfur coal with combination of microwaves and auxiliary agents |
| CN107892972A (en) * | 2017-11-23 | 2018-04-10 | 安徽理工大学 | A kind of coal microwave desulfurization equipment and method |
| CN107937085A (en) * | 2017-11-23 | 2018-04-20 | 安徽理工大学 | A kind of system and method that coal desulfurization before combustion processing is carried out using microwave radiation |
| CN111298953A (en) * | 2020-03-13 | 2020-06-19 | 中国矿业大学 | High-gradient magnetic separation desulfurization method for pre-combustion pulverized coal of power plant |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4398076A (en) * | 1981-03-06 | 1983-08-09 | Lester Hanson | Product recovery method and system for hydrocarbon materials |
| CN101786041A (en) * | 2010-02-23 | 2010-07-28 | 中国神华能源股份有限公司 | Vertical-ring magnetic separator for deferrization of pulverized coal ash |
| CN102506440A (en) * | 2011-10-20 | 2012-06-20 | 安徽理工大学 | Embedded dry magnetic separation purification and return powder magnetic separation regrinding process |
| CN104028358A (en) * | 2014-06-16 | 2014-09-10 | 中国矿业大学 | Fine coal microwave medium intensified magnetic separation cleaning system and fine coal microwave medium intensified magnetic separation cleaning process |
-
2015
- 2015-01-09 CN CN201510014916.7A patent/CN104722196A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4398076A (en) * | 1981-03-06 | 1983-08-09 | Lester Hanson | Product recovery method and system for hydrocarbon materials |
| CN101786041A (en) * | 2010-02-23 | 2010-07-28 | 中国神华能源股份有限公司 | Vertical-ring magnetic separator for deferrization of pulverized coal ash |
| CN102506440A (en) * | 2011-10-20 | 2012-06-20 | 安徽理工大学 | Embedded dry magnetic separation purification and return powder magnetic separation regrinding process |
| CN104028358A (en) * | 2014-06-16 | 2014-09-10 | 中国矿业大学 | Fine coal microwave medium intensified magnetic separation cleaning system and fine coal microwave medium intensified magnetic separation cleaning process |
Non-Patent Citations (1)
| Title |
|---|
| 焦红光 等: "细粒煤高梯度磁选脱硫技术的发展与思考", 《中国矿业》 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105132073A (en) * | 2015-09-07 | 2015-12-09 | 重庆大学 | Method for desulphurization through oxidation of high-sulfur coal with combination of microwaves and auxiliary agents |
| CN107892972A (en) * | 2017-11-23 | 2018-04-10 | 安徽理工大学 | A kind of coal microwave desulfurization equipment and method |
| CN107937085A (en) * | 2017-11-23 | 2018-04-20 | 安徽理工大学 | A kind of system and method that coal desulfurization before combustion processing is carried out using microwave radiation |
| CN107937085B (en) * | 2017-11-23 | 2019-10-29 | 安徽理工大学 | A kind of system and method carrying out the processing of coal desulfurization before combustion using microwave radiation |
| CN111298953A (en) * | 2020-03-13 | 2020-06-19 | 中国矿业大学 | High-gradient magnetic separation desulfurization method for pre-combustion pulverized coal of power plant |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104722196A (en) | Desulfurization system before combustion of coal by microwave treatment | |
| CN103359732B (en) | Integration food grade, technical grade carbon dioxide recovering apparatus and recovery process | |
| CN110585857B (en) | Dry flue gas desulfurization and denitrification device | |
| CN102976280A (en) | Method and device for removing H2S through cyclone of liquid sulfur from sulfur recovery unit | |
| CN204447667U (en) | Oil field associated gas separator | |
| CN107177736A (en) | A kind of recovery processing technique of the old and useless battery of nickel and cobalt containing | |
| CN204694091U (en) | A kind of recovery system of electric furnace zinc smelting tail gas | |
| CN104098069A (en) | New process for extraction of hydrogen from coal gas | |
| CN202173828U (en) | Molten sulphur filter | |
| CN201990479U (en) | Energy-saving device utilizing pressure swing adsorption technique for great production increasing of low-temperature methanol washing and/or liquid nitrogen washing | |
| CN103611406B (en) | The magnetic separating device of sulfur dioxide in flue gas and method | |
| CN104949533A (en) | Electric furnace zinc-smelting tail gas recovery system and control method thereof | |
| CA1128429A (en) | Operation of a lead-in-device receiving a conductor passed through the cover of an electrical precipitation apparatus | |
| CN203203415U (en) | Energy-saving smelting furnace with simple filtering device | |
| CN113617180A (en) | Carbon dioxide purification recovery unit based on kiln tail gas | |
| CN106984099B (en) | A kind of low-temperature methanol washing tail-gas recycling system, method and application | |
| CN221673686U (en) | Yellow phosphorus furnace gas dust removal system | |
| CN103480245A (en) | Equipment for preparing liquid sulfur dioxide by utilizing sulfur dioxide flue gas | |
| CN102068868A (en) | High-efficiency gas-liquid separator | |
| CN203494369U (en) | Device for preparing liquid sulfur dioxide by using sulfur dioxide flue gas | |
| CN203820447U (en) | Device for regenerating binary carrier used for pretreatment in coke oven gas PSA (pressure swing adsorption) hydrogen production | |
| CN214495729U (en) | Raw coke oven gas hydrogen production desorption gas decarbonization device | |
| CN203569165U (en) | Natural gas based lead smelting device | |
| CN108977246B (en) | Method for compressing natural gas | |
| CN107286975B (en) | A kind of electrode electrostatic coalescer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150624 |
|
| RJ01 | Rejection of invention patent application after publication |