CN206973509U - Hot merit cogeneration system during phosphorus production - Google Patents
Hot merit cogeneration system during phosphorus production Download PDFInfo
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- CN206973509U CN206973509U CN201720724256.6U CN201720724256U CN206973509U CN 206973509 U CN206973509 U CN 206973509U CN 201720724256 U CN201720724256 U CN 201720724256U CN 206973509 U CN206973509 U CN 206973509U
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Abstract
The utility model provides the hot merit cogeneration system during a kind of phosphorus production, is related to Thermodynamic System for Energy-saving technical field, including heat to power output mechanism, the switching mechanism of work(electricity, Steam Recovery condensing mechanism；The heat to power output mechanism includes tail gas recycle purification mechanism and exhaust combustion mechanism；The Steam Recovery condensing mechanism includes furnace charge passage（18）, water curtain condensing tower（19）, go out slag bath（20）, steam collection hood（21）, left steam guiding tube（22）, run-off（23）, moisturizing pond（24）；The steam heat recovery mechanism includes stay-warm case（29）And steam pipe coil（30）；By said mechanism, by the tail gas containing high heating value caused by during phosphorus production and clinker its be converted into electric energy, heat energy and rationally utilized, so as to save the energy to the full extent, reduce cost.
Description
Technical field
It the utility model is related to Thermodynamic System for Energy-saving technical field, and in particular to tail gas and steam during phosphorus production
Recycling system.
Background technology
Substantial amounts of incendivity tail gas can be produced in the production process of yellow phosphorus, every about 1 ton of yellow phosphorus of production, produces 2500-
3000m3 tail gas, its composition are mainly carbon monoxide, also sulphur, fluorine, phosphorus, nitrogen, cyanide and raw material dust etc., calorific capacity compared with
Greatly, value is very high, and the technique direction for comprehensively utilizing yellow phosphoric tail gas at present has as thermal source and emission power generation etc..
Applied for the technology to be generated electricity using yellow phosphoric tail gas in phosphorus production enterprise more generally, by phosphorus furnace exhaust gas through net
Boiler combustion is sent into after change processing, is generated electricity using high steam pushing turbine caused by burning, the electric energy sent is incorporated to
Power network, the electricity consumed during electric furnace smelting can be offset to a certain extent, reduce production cost, but steam is passing through steam turbine
Afterwards, pressure and temperature reduces, and can only be incorporated to the use of city heat supply net, but does not have the network of central heating in Shelter in South China Cities,
Therefore this mode can not be realized, so these steam are all condensed into water by some enterprises, after the operation such as deoxygenation again
Used into boiler, but this mode needs many condensing plants, water treatment facilities, and cost is higher.
With this simultaneously, in phosphorus production technological process, the more place for needing additional heat again be present, most directly
Being exactly rock phosphate in powder needs to be dried entering stokehold, and drying in the past is that the thermal source used is solid coal, efficiency and pollute it is larger, after
To be changed to carry out combustion heating using water-coal-slurry, however it remains easily produce unnecessary fume emission, cause environmental pollution etc. no
Foot, therefore progressively it is changed to use phosphorus furnace exhaust gas now as fuel, but corruption of the burning of phosphorus furnace exhaust gas for rock phosphate in powder dryer
Lose larger, and combustion process is difficult to control.
Steamed in addition, yellow phosphorus electric furnace can produce the largely high-temperature water containing corrosive gas when discharging clinker and entering pond
Vapour, these water vapours have taken away substantial amounts of heat energy, but because it has corrosivity, it is difficult to recycle, therefore be essentially all
It is directly discharged in the air, cause working environment fog and diffuse, influences being normally carried out for production, the health to operator is also
One big harm；Insufficient existing for this open type pond in order to partially remove, some producers devise the collection for collecting steam
Cover, but collection efficiency is bad, and can also influence to drag for slag operation from pond.
The content of the invention
To overcome the disadvantages mentioned above of prior art, the utility model provides the hot merit Electricity Federation production during a kind of phosphorus production
System, yellow phosphorus electric furnace tail gas is used for boiler combustion and produces high temperature and high pressure steam, pushing turbine work generates electricity, used pressure
The steam that power and temperature reduce then is transported to rock phosphate in powder drying station, to aid in drying rock phosphate in powder, in addition, yellow phosphorus electric furnace is slagged tap
A large amount of high-temperature water vapors are collected rear portion and condensed by water curtain for supplementing out the cooling water in slag bath, another portion caused by pond
Divide still to guide and heating is aided at ore dryer, working system is heated by a whole set of tail gas, Steam Recovery, yellow phosphorus is given birth to
Caused work(, heat energy energy make full use of during production, so as to save the energy to the full extent, reduce cost.
To achieve the above object, the utility model uses following technical scheme, the hot merit Electricity Federation production during phosphorus production
System, it is characterised in that including heat-work(switching mechanism, work(- electric switching mechanism, Steam Recovery condensing mechanism.
The heat-work(switching mechanism includes tail gas recycle purification mechanism and exhaust combustion mechanism.
The tail gas recycle purification mechanism includes electric furnace 1, tail gas water seal 2, air entraining pipe 3, bleed blower fan 4, pressure sensor
5th, controller 6, air inlet pipe 7, steam-water separation cylinder 8, drainpipe 9, water scrubber 10；The air entraining pipe 3 connects electric furnace 1 and tail gas respectively
Water seal 2, bleed blower fan 4 are arranged on air entraining pipe 3, the pressure sensor 5 being arranged on inside air entraining pipe 3 and controller 6 and bleed
Blower fan 4 is sequentially connected, the UNICOM's steam-water separation cylinder 8 of air inlet pipe 7, and the lower end of steam-water separation cylinder 8 sets drainpipe 9, steam-water separation cylinder 8
Escape pipe is connected with water scrubber 10.
The exhaust combustion mechanism includes automatic valve 11 and tail gas boiler 12, and the drum being connected with tail gas boiler 12
13 and high-pressure steam pipe 14.
The work(- electric switching mechanism includes the steam turbine 15 and asynchronous machine 16 being connected with drum 13, the steaming
The air intake of vapour steam turbine 15 is connected by entering steam brake valve with high-pressure steam pipe 14, receives steam；The asynchronous machine 16
Rotor couples with the rotor of the steam turbine 15, and is generated electricity relative to the stator rotation of asynchronous machine 16, the steaming after acting
Vapour is discharged by low pressure steam pipe 17.
The Steam Recovery condensing mechanism is arranged on the lower section of electric furnace 1, and it includes furnace charge passage 18, water curtain condensing tower 19, gone out
Slag bath 20, steam collection hood 21, left steam guiding tube 22, run-off 23, moisturizing pond 24, wherein, furnace charge passage 18 connects the bottom of electric furnace 1
After stretch into out in slag bath 20, go out between slag bath 20 and run-off 23 setting overflow pipe 25, clinker enters the water in fashionable pond 20 of slagging tap
Face rises, and the cooling water for being higher by overflow pipe 25 flows into run-off 23 along it；Steam collection hood 21 is placed in out the top of slag bath 20, its
It is upper that left steam guiding tube 22 and right steam guiding tube 26 are set, wherein left steam guiding tube 22 is connected to the bottom of water curtain condensing tower 19, right steam guiding tube
Some vapor is sent into water curtain condensing tower 19 and is condensed into water, right steam guiding tube by 26 connection rock phosphate in powder drying units, left steam guiding tube 22
Another part steam is delivered to rock phosphate in powder drying unit by 26 carries out auxiliary heating.
The lower section of water curtain condensing tower 19 sets aqueduct 27, is respectively connecting to run-off 23 and moisturizing pond 24, will participate in
The water and steam of cooling condense the water to be formed and deliver to run-off 23 and moisturizing pond 24 as needed；Wherein moisturizing pond 24 and water curtain is cold
Solidifying tower 19 and go out between slag bath 20 to set water pump 28, the water formed needed for water curtain is provided for water curtain condensing tower 19, also to go out slag bath
20 supplement cooling waters, the hot water in run-off 23 can then deliver to other regions as needed.
Although in work(- electric switching mechanism, its pressure has dropped after high temperature and high pressure steam is done work by steam turbine 15
It is low, but it still contains of a relatively high temperature and heat, if directly discharge can cause energy dissipation by it, for fully profit
With the heat of steam, steam heat recovery mechanism is set after the work(- electric switching mechanism, the steam after acting is passed through into low pressure
Steam pipe 17 is guided at rock phosphate in powder drying unit, and the part shunted after pressure with Steam Recovery condensing mechanism is adjusted by voltage-stablizer
Recovered steam converges, and auxiliary heating is carried out to rock phosphate in powder.
The steam heat recovery mechanism includes stay-warm case 29 and steam pipe coil 30, and the stay-warm case 29 is arranged on rock phosphate in powder
The periphery of feed bin 31 of drying unit, by feed bin 31, whole parcel, the steam pipe coil 30 are evenly distributed on the guarantor in addition to top
Inside temperature cover 29, it is close to the wall of feed bin 31, steam is largely condensed into water discharge after the completion of heat exchange, and a small amount of residue vapor also may be used
Directly empty.
Beneficial effect：The utility model is by setting heat-work(switching mechanism, work(- electric switching mechanism, Steam Recovery freezing machine
Structure and steam heat recovery mechanism, by the tail gas containing high heating value caused by during phosphorus production and clinker, it is converted into electricity
Can, heat energy and rationally utilized, so as to saving the energy to the full extent, reduce cost.
Brief description of the drawings
Fig. 1 is the structural representation of the equipment described in the utility model that dry materials are carried out using phosphorus furnace exhaust gas.
Fig. 2 is the structural representation of steam heat recovery mechanism described in the utility model.
In figure, electric furnace 1, tail gas water seal 2, air entraining pipe 3, bleed blower fan 4, pressure sensor 5, controller 6, air inlet pipe 7, vapour
Water cylinder 8, drainpipe 9, water scrubber 10, automatic valve 11, tail gas boiler 12, drum 13, high-pressure steam pipe 14, steam turbine
Machine 15, asynchronous machine 16, low pressure steam pipe 17, furnace charge passage 18, water curtain condensing tower 19, go out slag bath 20, be steam collection hood 21, left
Steam guiding tube 22, run-off 23, moisturizing pond 24, overflow pipe 25, right steam guiding tube 26, aqueduct 27, water pump 28, stay-warm case 29, steaming
Vapour coil pipe 30, feed bin 31.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
Embodiment 1
As shown in Figure 1, 2, the hot merit cogeneration system during a kind of phosphorus production described in the present embodiment, including heat-
Work(switching mechanism, work(- electric switching mechanism, Steam Recovery condensing mechanism.
The heat-work(switching mechanism includes tail gas recycle purification mechanism and exhaust combustion mechanism.
The tail gas recycle purification mechanism includes electric furnace 1, tail gas water seal 2, air entraining pipe 3, bleed blower fan 4, pressure sensor
5th, controller 6, air inlet pipe 7, steam-water separation cylinder 8, drainpipe 9, water scrubber 10；The air entraining pipe 3 connects electric furnace 1 and tail gas respectively
Water seal 2, bleed blower fan 4 are arranged on air entraining pipe 3, the pressure sensor 5 being arranged on inside air entraining pipe 3 and controller 6 and bleed
Blower fan 4 is sequentially connected, the UNICOM's steam-water separation cylinder 8 of air inlet pipe 7, and the lower end of steam-water separation cylinder 8 sets drainpipe 9, steam-water separation cylinder 8
Escape pipe is connected with water scrubber 10.
The exhaust combustion mechanism includes automatic valve 11 and tail gas boiler 12, and the drum being connected with tail gas boiler 12
13 and high-pressure steam pipe 14.
The work(- electric switching mechanism includes the steam turbine 15 and asynchronous machine 16 being connected with drum 13, the steaming
The air intake of vapour steam turbine 15 is connected by entering steam brake valve with high-pressure steam pipe 14, receives steam；The asynchronous machine 16
Rotor couples with the rotor of the steam turbine 15, and is generated electricity relative to the stator rotation of asynchronous machine 16, the steaming after acting
Vapour is discharged by low pressure steam pipe 17.
The Steam Recovery condensing mechanism is arranged on the lower section of electric furnace 1, and it includes furnace charge passage 18, water curtain condensing tower 19, gone out
Slag bath 20, steam collection hood 21, left steam guiding tube 22, run-off 23, moisturizing pond 24, wherein, furnace charge passage 18 connects the bottom of electric furnace 1
After stretch into out in slag bath 20, go out between slag bath 20 and run-off 23 setting overflow pipe 25, clinker enters the water in fashionable pond 20 of slagging tap
Face rises, and the cooling water for being higher by overflow pipe 25 flows into run-off 23 along it；Steam collection hood 21 is placed in out the top of slag bath 20, its
It is upper that left steam guiding tube 22 and right steam guiding tube 26 are set, wherein left steam guiding tube 22 is connected to the bottom of water curtain condensing tower 19, right steam guiding tube
Some vapor is sent into water curtain condensing tower 19 and is condensed into water, right steam guiding tube by 26 connection rock phosphate in powder drying units, left steam guiding tube 22
Another part steam is delivered to rock phosphate in powder drying unit by 26 carries out auxiliary heating.
The lower section of water curtain condensing tower 19 sets aqueduct 27, is respectively connecting to run-off 23 and moisturizing pond 24, will participate in
The water and steam of cooling condense the water to be formed and deliver to run-off 23 and moisturizing pond 24 as needed；Wherein moisturizing pond 24 and water curtain is cold
Solidifying tower 19 and go out between slag bath 20 to set water pump 28, the water formed needed for water curtain is provided for water curtain condensing tower 19, also to go out slag bath
20 supplement cooling waters, the hot water in run-off 23 can then deliver to other regions as needed.
Although in work(- electric switching mechanism, its pressure has dropped after high temperature and high pressure steam is done work by steam turbine 15
It is low, but it still contains of a relatively high temperature and heat, if directly discharge can cause energy dissipation by it, for fully profit
With the heat of steam, steam heat recovery mechanism is set after the work(- electric switching mechanism, the steam after acting is passed through into low pressure
Steam pipe 17 is guided at rock phosphate in powder drying unit, and the part shunted after pressure with Steam Recovery condensing mechanism is adjusted by voltage-stablizer
Recovered steam converges, and auxiliary heating is carried out to rock phosphate in powder.
Embodiment 2
As shown in Figure 1, 2, the hot merit cogeneration system during a kind of phosphorus production described in the present embodiment, its structure with
Basically identical described in embodiment 1, difference is, the steam heat recovery mechanism includes stay-warm case 29 and steam pipe coil 30, institute
The periphery of feed bin 31 that stay-warm case 29 is arranged on rock phosphate in powder drying unit is stated, feed bin 31 is entirely wrapped up in addition to top, the steam
Coil pipe 30 is evenly distributed on inside the stay-warm case 29, is close to the wall of feed bin 31, and steam is largely condensed into water after the completion of heat exchange
Discharge, a small amount of residue vapor also can be emptied directly.
Claims (3)
1. the hot merit cogeneration system during phosphorus production, it is characterised in that including heat-work(switching mechanism, work(- electric interpreter
Structure, Steam Recovery condensing mechanism；
The heat-work(switching mechanism includes tail gas recycle purification mechanism and exhaust combustion mechanism；
The tail gas recycle purification mechanism includes electric furnace (1), tail gas water seal (2), air entraining pipe (3), bleed blower fan (4), pressure biography
Sensor (5), controller (6), air inlet pipe (7), steam-water separation cylinder (8), drainpipe (9), water scrubber (10)；The air entraining pipe (3)
Electric furnace (1) and tail gas water seal (2) are connected respectively, and bleed blower fan (4) is arranged on air entraining pipe (3), and it is internal to be arranged on air entraining pipe (3)
Pressure sensor (5) be sequentially connected with controller (6) and bleed blower fan (4), air inlet pipe (7) UNICOM's steam-water separation cylinder (8), vapour
Water cylinder (8) lower end sets drainpipe (9), and the escape pipe of steam-water separation cylinder (8) is connected with water scrubber (10)；
The exhaust combustion mechanism includes automatic valve (11) and tail gas boiler (12), and the vapour being connected with tail gas boiler (12)
Wrap (13) and high-pressure steam pipe (14)；
The work(- electric switching mechanism includes the steam turbine (15) and asynchronous machine (16) being connected with drum (13), described
The air intake of steam turbine (15) is connected by entering steam brake valve with high-pressure steam pipe (14) road, receives steam；The asynchronous electricity
The rotor of machine (16) couples with the rotor of the steam turbine (15), and is sent out relative to the stator rotation of asynchronous machine (16)
Electricity, the steam after acting pass through low pressure steam pipe（17）Discharge；
The Steam Recovery condensing mechanism is arranged on below electric furnace (1), and it includes furnace charge passage（18）, water curtain condensing tower（19）、
Go out slag bath（20）, steam collection hood（21）, left steam guiding tube（22）, run-off（23）, moisturizing pond（24）, wherein, furnace charge passage
（18）Connection stretches into out slag bath behind electric furnace (1) bottom（20）In, go out slag bath（20）And run-off（23）Between overflow pipe is set
（25）, clinker enters fashionable pond of slagging tap（20）The water surface rise, be higher by overflow pipe（25）Cooling water along its flow into run-off
（23）；Steam collection hood（21）It is placed in out slag bath（20）Top, left steam guiding tube is set thereon（22）With right steam guiding tube（26）, wherein
Left steam guiding tube（22）It is connected to water curtain condensing tower（19）Bottom, right steam guiding tube（26）Rock phosphate in powder drying unit is connected, vapour is led on a left side
Pipe（22）Some vapor is sent into water curtain condensing tower（19）In be condensed into water, right steam guiding tube（26）Another part steam is delivered into phosphorus
Ore drying unit carries out auxiliary heating；
The water curtain condensing tower（19）Lower section sets aqueduct（27）, it is respectively connecting to run-off（23）And moisturizing pond（24）, will
The water and steam for participating in cooling condense the water to be formed and deliver to run-off as needed（23）And moisturizing pond（24）；Wherein moisturizing pond
（24）With water curtain condensing tower（19）With go out slag bath（20）Between water pump is set（28）, it is water curtain condensing tower（19）Offer forms water curtain
Required water, also to go out slag bath（20）Supplement cooling water, run-off（23）In hot water can then deliver to other regions as needed.
2. the hot merit cogeneration system during phosphorus production according to claim 1, it is characterised in that the work(-
Steam heat recovery mechanism is set after electric switching mechanism, the steam after acting is passed through into low pressure steam pipe（17）Guide to rock phosphate in powder baking
At equipment for drying, the partially recycled steam shunted after pressure with Steam Recovery condensing mechanism is adjusted by voltage-stablizer and converged, to phosphorus ore
Stone carries out auxiliary heating.
3. the hot merit cogeneration system during phosphorus production according to claim 2, it is characterised in that more than the steam
Recuperation of heat mechanism includes stay-warm case（29）And steam pipe coil（30）, the stay-warm case（29）It is arranged on the material of rock phosphate in powder drying unit
Storehouse（31）Periphery, by feed bin（31）Whole parcel, the steam pipe coil in addition to top（30）It is evenly distributed on the stay-warm case
（29）Inside, it is close to feed bin（31）Wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720724256.6U CN206973509U (en) | 2017-06-21 | 2017-06-21 | Hot merit cogeneration system during phosphorus production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720724256.6U CN206973509U (en) | 2017-06-21 | 2017-06-21 | Hot merit cogeneration system during phosphorus production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206973509U true CN206973509U (en) | 2018-02-06 |
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ID=61408660
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720724256.6U Active CN206973509U (en) | 2017-06-21 | 2017-06-21 | Hot merit cogeneration system during phosphorus production |
Country Status (1)
| Country | Link |
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| CN (1) | CN206973509U (en) |
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2017
- 2017-06-21 CN CN201720724256.6U patent/CN206973509U/en active Active
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