CN104748573B - It is a kind of from rotary kiln take wind take heat method and desirable wind take heat rotary system - Google Patents

Abstract

The invention discloses it is a kind of from rotary kiln take wind take heat method and desirable wind take heat rotary system.It is described from rotary kiln take wind take heat method be that heat smoke is taken out from rotary kiln, the heat smoke is taken out from the smoke-box of the rotary kiln.The heat smoke taken out from the rotary kiln smoke-box is sent to into drying system, and/or, the heat smoke taken out from the rotary kiln smoke-box is used to prepare potash fertilizer or for the raw material of industry.The desirable wind takes the rotary system of heat, including rotary kiln, and the kiln tail of the rotary kiln is connected with pyrolysis oven by smoke-box, and the lateral wall of the rotary kiln smoke-box is provided with heat smoke outlet.The present invention can obtain the higher heat smoke of temperature, the temperature of heat smoke is 950 degrees Celsius to 1200 degrees Celsius, it is not necessary to using coal-fired afterburning stove as drying thermal source, not only can the alternative materials big to water content carry out effective drying and processing, moreover, it is also possible to produce high-quality potash fertilizer.

Description

It is a kind of from rotary kiln take wind take heat method and desirable wind take heat rotary system

Technical field

The present invention relates to it is a kind of take from cement kiln wind take heat method and desirable wind take heat quality coal in cement kiln systems, especially relate to And it is a kind of from rotary kiln take wind take heat method and desirable wind take heat rotary system.

Background technology

Cement industry is that resource, energy resource consumption be big and the industry of heavy contamination.The energy-saving and emission-reduction pressure undertaken with China Increasing, it is imperative that cement industry carries out transition and upgrade centered on environmental protection and energy saving.Therefore the use of replacement crude fuel is Development trend, consumption are increasing, but while can also face replacement crude fuel in harmful element especially chlorine ion concentration is higher Problem.

In prior art, alternative materials have a big alternative materials of water content, the alternative materials for also having water content little, have chlorine from The high alternative materials of sub- content, the alternative materials for also having chloride ion content low., replacement that chloride ion content low little for water content Raw material, chopped-off head preheater when disposed using cement rotary kiln on a large scale, at the top of kiln tail pyrolysis oven（Preheater 0-6 tops in Fig. 1 That one-level）Outlet is provided with and takes wind and take thermal, takes wind by this and takes thermal and preheats the chopped-off head at the top of kiln tail pyrolysis oven The heat smoke taken out in device is sent to raw material grinding or raw material stoving crushing system as drying thermal source, and the temperature of heat smoke is reachable 280 is Celsius to 380 Celsius, and alternative materials little to water content, that chloride ion content is low are dried, the alternative materials foot after drying To meet the technological requirement of production cement.

But, the heat smoke taken out in the chopped-off head preheater at the top of kiln tail pyrolysis oven is sent to into original by taking wind and taking thermal Feed powder grind or raw material stoving crushing system as drying thermal source, the temperature of heat smoke up to 280 degrees Celsius to 380 degrees Celsius, it is right Water content is big, the alternative materials that chloride ion content is high are dried, and the temperature of heat smoke is relatively low, the alternative materials after drying The technological requirement of production cement cannot be met.Although the high alternative materials of chloride ion content are pyrolyzed from kiln tail through preheating Chloride ion content in the heat smoke taken out in the chopped-off head preheater in furnace roof portion is relatively low, and chloride ion content is usually 2.6g/Nm³, Process cost performance is carried out to the chloride ion in heat smoke too low, lost more than gain.

, used as a kind of industrial residue, yield is big, and appropriation of land simultaneously pollutes environment for carbide slag.Carbide slag water content is big, and Chloride ion content is high, and its drying heat consumption is higher.When carbide slag is disposed on a large scale using cement rotary kiln, at the top of kiln tail pyrolysis oven The temperature of flue gas of chopped-off head preheater outlet tend not to meet drying requirement, and using coal-fired afterburning stove as drying thermal source When, the thermal efficiency is relatively low, and coal consumption is higher, and the method can also have a negative impact to the drying thermal efficiency for drying crushing system.Separately On the one hand, the chlorine ion concentration in carbide slag is higher, and 0.03%, control even can not reach 0.1%- to mean concentration at that time 0.4%, in making kiln raw material, chlorine ion concentration is higher.In raw material, the harmful components such as chloride ion are higher can cause rotary system to tie Skin, blocking, the operating of kiln condition are abnormal, and in grog, chlorine ion concentration is higher, affect clinker quality.

The content of the invention

The invention solves the problems that a technical problem be to provide it is a kind of from rotary kiln take wind take heat method, the method obtain Heat smoke temperature it is higher, water content big alternative materials can be dried by the heat smoke of higher temperature, replacing after drying The technological requirement of production cement can be met for raw material；Chloride ion in alternative materials can also be discharged by the method.

The invention solves the problems that another technical problem be to provide the rotary system that a kind of desirable wind takes heat, the system takes The heat smoke temperature for obtaining is higher, and water content big alternative materials can be dried by the heat smoke of higher temperature, after drying Alternative materials can meet the technological requirement of production cement；Chloride ion in alternative materials can also be discharged by the system.

For method, in order to solve said one technical problem, the invention provides one kind takes wind from rotary kiln takes heat Method, heat smoke is taken out from rotary kiln, the heat smoke is taken out from the smoke-box of the rotary kiln.

The heat smoke taken out from the rotary kiln smoke-box is sent to into drying system, and/or, will be from the rotary kiln The heat smoke taken out in kiln tail smoke-box is used to prepare potash fertilizer or for the raw material of industry.

The heat smoke taken out from the rotary kiln smoke-box is sent to drying system, and/or, will be from the revolution The heat smoke taken out in kiln kiln tail smoke-box first carries out dust removal process and/or cooling treatment before being used to prepare potash fertilizer.

The dust removal process includes that 3-stage dust-removal is processed, and the cooling treatment includes three-level cooling treatment, to from described time The heat smoke taken out in rotary kiln kiln tail smoke-box first carries out first order dust removal process and first order cooling treatment, then carries out the second level and remove Dirt process, is then sent to drying system, the kiln ash collected is returned in rotary kiln, the second level is removed after first order dust removal process The kiln ash collected after dirt process is sent in the final stage preheater discharge duct at the top of kiln tail pyrolysis oven；Or, to from the rotary kiln The heat smoke taken out in kiln tail smoke-box first carries out first order dust removal process and first order cooling treatment, then carries out at the dedusting of the second level Reason and second level cooling treatment, then, carry out third level cooling treatment and third level dust removal process, after first order dust removal process The kiln ash of collection is returned in rotary kiln, and the kiln ash collected after the dust removal process of the second level is sent to the final stage at the top of kiln tail pyrolysis oven In preheater discharge duct, by the kiln collected after third level dust removal process ash for preparing potash fertilizer, will obtain after third level dust removal process To heat smoke be sent to the grate-cooler of rotary kiln end；Or, to the heat smoke elder generation taken out from the rotary kiln smoke-box First order dust removal process and first order cooling treatment are carried out, then carries out second level dust removal process, will be received after first order dust removal process The kiln ash of collection is returned in rotary kiln, and the final stage that the kiln ash collected after the dust removal process of the second level is sent at the top of kiln tail pyrolysis oven is pre- In hot device discharge duct, then, the part in the heat smoke that will be obtained after the dust removal process of the second level is sent to drying system, meanwhile, Another part in the heat smoke that will be obtained after the dust removal process of the second level carries out second level cooling treatment, then carries out third level cooling Process and third level dust removal process, by the kiln collected after third level dust removal process ash for preparing potash fertilizer, at third level dedusting The heat smoke obtained after reason is sent to the grate-cooler of rotary kiln end.

The present invention from rotary kiln take wind take heat method have the advantages that compared with prior art.

1st, the technology handss that the technical program is taken out from the smoke-box of the rotary kiln as a result of the heat smoke Section, so, can obtain the higher heat smoke of temperature, the temperature of heat smoke be 950 degrees Celsius to 1200 degrees Celsius, higher temperature Water content big alternative materials can be dried by heat smoke, it is not necessary to using coal-fired afterburning stove as thermal source is dried, greatly Energy saving, the alternative materials after drying can meet the technological requirement of production cement；The method is also helped in alternative materials Chloride ion discharge, the chlorine ion concentration in heat smoke can reach 2.6g/Nm³, it is that improvement below creates advantage.

2nd, the technical program is sent to drying system as a result of by the heat smoke taken out from the rotary kiln smoke-box System, and/or, the heat smoke taken out from the rotary kiln smoke-box is used to prepare potash fertilizer or the technology for the raw material of industry Means, so, heat smoke can be utilized according to practical situation, play the not same-action of heat smoke, in both make use of heat smoke Calorific value, and the chloride ion in heat smoke is processed, change harmful to treasure.

3rd, the technical program is as a result of being sent to drying by the heat smoke taken out from the rotary kiln smoke-box System, and/or, dust removal process is first carried out before the heat smoke taken out from the rotary kiln smoke-box is used to prepare potash fertilizer And/or the technological means of cooling treatment, so, first achloride can be separated out, be conducive to raising to prepare the quality of potash fertilizer.

4th, as a result of the dust removal process, the technical program includes that 3-stage dust-removal is processed, and the cooling treatment includes three Level cooling treatment, the heat smoke to taking out from the rotary kiln smoke-box first carries out first order dust removal process and the first order is cold But process, then carry out second level dust removal process, be then sent to drying system, the kiln collected after first order dust removal process ash is returned To in rotary kiln, in the final stage preheater discharge duct that the kiln ash collected after the dust removal process of the second level is sent at the top of kiln tail pyrolysis oven Technological means, so, not only can the alternative materials big to water content carry out effective drying and processing, moreover, it is also possible to will The flue dust separated out from heat smoke（Achloride）Send in kiln as cement raw material and make cement, substantially reduce air dirty Dye.First order dust removal process and first order cooling are carried out first when the heat smoke to taking out from the rotary kiln smoke-box is adopted Process, then carry out second level dust removal process and second level cooling treatment, then, carry out third level cooling treatment and third level dedusting Process, the kiln ash collected after first order dust removal process is returned in rotary kiln, by the kiln collected after the dust removal process of second level ash It is sent in the final stage preheater discharge duct at the top of kiln tail pyrolysis oven, the kiln collected after third level dust removal process ash is used to prepare potassium Fertilizer, during the technological means of the grate-cooler that the heat smoke obtained after third level dust removal process is sent to rotary kiln end, not only can be with High-quality potash fertilizer is produced, moreover, it is also possible to by the flue dust separated out from heat smoke（Achloride）Send as cement raw material Enter, air pollution can be avoided.When advanced using the heat smoke to taking out from the rotary kiln smoke-box Row first order dust removal process and first order cooling treatment, then second level dust removal process is carried out, will collect after first order dust removal process Kiln ash return in rotary kiln, by the kiln ash collected after the dust removal process of the second level be sent at the top of kiln tail pyrolysis oven final stage preheating In device discharge duct, then, the part in the heat smoke that will be obtained after the dust removal process of the second level is sent to drying system, meanwhile, will Another part in the heat smoke obtained after the dust removal process of the second level carries out second level cooling treatment, then carries out at third level cooling Reason and third level dust removal process, by the kiln collected after third level dust removal process ash for preparing potash fertilizer, by third level dust removal process When the heat smoke for obtaining afterwards is sent to the technological means of the grate-cooler of rotary kiln end, high-quality potash fertilizer can be not only produced, Moreover, it is also possible to pollutant in heat smoke are sent in kiln dispose, air pollution can be reduced or avoided.

For product, in order to solve above-mentioned another technical problem, the invention provides a kind of desirable wind takes returning for heat Rotary kiln system, including rotary kiln, the kiln tail of the rotary kiln are connected with pyrolysis oven by smoke-box, the rotary kiln smoke-box Lateral wall is provided with heat smoke outlet.

The heat smoke outlet of the smoke-box takes thermal tool with the heat smoke inlet communication that wind takes thermal, the wind that takes is taken There are first order dust arrester and first order chiller, it is described to take heat smoke outlet and the second level dust arrester that wind takes thermal Heat smoke inlet communication, heat smoke outlet and the heat smoke inlet communication of drying system of the second level dust arrester.

It is described take wind and take thermal include outer tube and inner core, the outer sleeve on the inner core, the inwall of the outer tube Annular space is constituted and the outer wall of the inner core between, the outlet port of the inner core is tightly connected with one end of the outer tube, Air outlet, the other end of the outer tube and the smoke-box are constituted between the other end of the inlet port of the inner core and the outer tube The connection of heat smoke exit seal, the side wall of the outer tube is provided with tangent air inlet.

The shape of the tangent air inlet is elongated, the length of the length direction of the tangent air inlet and the outer tube Direction is identical, and the length of the tangent air inlet is corresponding to the length of the outer tube, and the strip tangent air inlet is configured with Reducing air inlet joint, the air-out mouth-shaped of the reducing air inlet joint be elongated, and the reducing air inlet joint enters Inlet shape is rounded；Or, the tangent air inlet is offset to one end of the outer tube, is provided with spiral shell in the annular space Rotation passage, one end connection of helical duct described in the tangent air inlet, the other end of the helical duct and the smoke-box Heat smoke outlet.

Outside the circular in cross-section of the outer tube, the inner core circular in cross-section, the outer tube inner wall and the inner core The distance between wall is equal everywhere；Or, the cross section of the outer tube is in the not isometrical circle of disloyalty, and the inner core cross section is in disloyalty Isometrical circle, from the tangent air inlet along air intake advance it is circumferential at away from tangent air inlet, the outer tube inner wall with The distance between described inner tank theca is gradually reduced；Or, the cross section of the outer tube is in the not isometrical circle of three-core, the inner core horizontal stroke Section is in the isometrical circle of disloyalty, from close tangent air inlet along the circumferential at away from tangent air inlet of air intake, the outer tube The distance between inwall and described inner tank theca are gradually reduced.

Heat smoke outlet and the heat smoke inlet communication of third level chiller of the second level dust arrester, described the The heat smoke outlet of three-level chiller and the heat smoke inlet communication of third level dust arrester, the third level dust arrester The flue dust inlet communication of soot door and kiln ash silo, heat smoke outlet and the third level chiller of the second level dust arrester Heat smoke import be provided with second level chiller.

The rotary system that the desirable wind of the present invention takes heat is had the advantages that compared with prior art.

1st, the technical program is provided with the skill that heat smoke is exported as a result of the lateral wall of the rotary kiln smoke-box Art means, so, the higher heat smoke of temperature can be obtained, the temperature of heat smoke is 950 degrees Celsius to 1200 degrees Celsius, higher temperatures Water content big alternative materials can be dried by the heat smoke of degree, it is not necessary to using coal-fired afterburning stove as thermal source is dried, greatly The earth energy saving, the alternative materials after drying can meet the technological requirement of production cement；The method is also helped and will substitute original Chloride ion in material is discharged, and the chlorine ion concentration in heat smoke can reach 2.6g/Nm³, it is that improvement below creates favourable bar Part.

2nd, the technical program as a result of the smoke-box heat smoke outlet with take the heat smoke import that wind takes thermal Connection, it is described take wind and take thermal there is first order dust arrester and first order chiller, it is described to take the heat that wind takes thermal The heat smoke inlet communication of exhanst gas outlet and second level dust arrester, heat smoke outlet and the drying of the second level dust arrester The technological means of the heat smoke inlet communication of system, so, heat smoke can be utilized according to practical situation, play heat smoke not Same-action, both make use of the heat in heat smoke, can separate out the achloride in heat smoke again and separate, achloride is used for Cement raw material.

3rd, the technical program as a result of it is described take wind and take thermal include outer tube and inner core, the outer sleeve is described On inner core, annular space, the outlet port of the inner core and institute between the outer wall of the inwall of the outer tube and the inner core, are constituted The one end for stating outer tube is tightly connected, and air outlet is constituted between the other end of the inlet port of the inner core and the outer tube, described The other end of outer tube is connected with the heat smoke exit seal of the smoke-box, and the side wall of the outer tube is provided with the skill of tangent air inlet Art means, so, take wind and take the negative pressure extracting heat smoke that thermal can rely on present invention process system to be formed, cooled down using one Air blasts blower fan the tangent air inlet for taking that wind takes thermal, air take wind take thermal outer tube inwall and inner core it is outer Between wall under the guiding of annular space, rotatably entrance takes wind and takes thermal, and the heat smoke to taking out carries out the cold of varying degree But cyclonic separation is carried out, and by big particle in heat smoke of the effect of eddy flow by taking-up, is returned in kiln system.

4th, the technical program is elongated as a result of the shape of the tangent air inlet, the length of the tangent air inlet Degree direction is identical with the length direction of the outer tube, and the length of the tangent air inlet is corresponding to the length of the outer tube, described Strip tangent air inlet is configured with reducing air inlet joint, and the air-out mouth-shaped of the reducing air inlet joint is elongated, The air intake mouth-shaped of the reducing air inlet joint is rounded；Or, the tangent air inlet is offset to one end of the outer tube, Helical duct is provided with the annular space, one end connection of helical duct described in the tangent air inlet, the spiral are led to The technological means of the other end in road and the heat smoke outlet of the smoke-box, so, can be produced according to the demand of different clients Go out the different wind that take and take thermal.

5th, circular in cross-section of the technical program as a result of the outer tube, the inner core circular in cross-section, institute The distance between outer tube inner wall and inner tank theca technological means equal everywhere are stated, so, take the structure that wind takes thermal Relatively simple, production and processing is easier to, and production cost is relatively low.It is when the cross section using the outer tube is in the not isometrical circle of disloyalty, described Inner core cross section is in the isometrical circle of disloyalty, from close tangent air inlet along the circumferential to away from tangent air inlet of air intake traveling During the technological means that the distance between place, the outer tube inner wall and described inner tank theca are gradually reduced, be conducive to improving air and exist Swirl velocity in annular space, and then, be conducive to improving the heat smoke swirl velocity for taking out, finally, be conducive to heat smoke Middle big particle is separated from heat smoke.When the cross section using the outer tube is in the not isometrical circle of three-core, the inner core horizontal stroke Section is in the isometrical circle of disloyalty, from close tangent air inlet along the circumferential at away from tangent air inlet of air intake, the outer tube During the technological means that the distance between inwall and described inner tank theca are gradually reduced, air can be further improved in annular space Interior swirl velocity, and then, the heat smoke swirl velocity of taking-up can be further improved, finally, further by heat smoke More big particles are separated from heat smoke.

6th, heat smoke outlet and third level chiller of the technical program as a result of the second level dust arrester Heat smoke inlet communication, heat smoke outlet and the heat smoke import of third level dust arrester of the third level chiller connect It is logical, the soot door of the third level dust arrester and the flue dust inlet communication of kiln ash silo, the heat of the second level dust arrester The heat smoke import of exhanst gas outlet and third level chiller is provided with the technological means of second level chiller, so, not only Can the alternative materials big to water content carry out effective drying and processing, moreover, it is also possible to produce high-quality potash fertilizer.

Description of the drawings

With reference to the accompanying drawings and detailed description to the present invention from rotary kiln take wind take heat method and desirable wind take heat Rotary system be described in further detail.

Fig. 1 is the overall structure principle schematic of the rotary system that the desirable wind of the present invention takes heat.

Fig. 2 be Fig. 1 in the first take the structural representation that wind takes thermal.

Fig. 3 be Fig. 2 in structural representation from B to gas outlet.

Fig. 4 is located at the structural representation of line A-A for the first inner core in Fig. 2 and outer tube.

Fig. 5 is located at the structural representation of line A-A for second inner core in Fig. 2 and outer tube.

Fig. 6 is located at the structural representation of line A-A for the third inner core in Fig. 2 and outer tube.

Fig. 7 is reducing air inlet joint C in Fig. 4, Fig. 5 or Fig. 6 to structural representation.

Fig. 8 takes the structural representation that wind takes thermal for second in Fig. 1.

Description of reference numerals is as follows.

0 ~ rotary kiln.

0-1 ~ pyrolysis oven.

0-2 ~ smoke-box.

0-3 ~ air bubble.

0-4 ~ air tank.

0-5 ~ heat smoke outlet.

0-6 ~ preheater.

1 ~ take wind and take thermal.

1-1 ~ outer tube.

1-2 ~ inner core.

1-3 ~ transition conduit.

1-4 ~ seal member.

1-5 ~ tangent air inlet.

1-6 ~ reducing air inlet joint.

1-7 ~ tee pipe coupling.

1-8 ~ gas outlet.

1-9 ~ inspection door.

1-10 ~ air bubble.

1-11 ~ helical duct.

2 ~ quenching blower fan.

2-1 ~ stop valve.

2-2 ~ stop valve.

3 ~ cyclone separator.

3-1 ~ stop valve.

3-2 ~ bis- flap valves.

4 ~ drying system.

4-1 ~ stop valve.

5 ~ cold wind butterfly valve.

6 ~ multitube cooler.

6-1 ~ stop valve.

6-2 ~ cold wind butterfly valve.

6-3 ~ bis- flap valves.

6-4 ~ conveying worm.

7 ~ three-level bag filter.

7-1 ~ stop valve.

7-2 ~ revolution discharger.

7-3 ~ conveying worm.

8 ~ exhaust blower.

8-1 ~ stop valve.

9 ~ grate-cooler.

9-1 ~ cold wind butterfly valve.

9-2 ~ exhaust blower.

10 ~ kiln ash silo.

10-1 ~ nozzle.

10-2 ~ roots blower.

10-3 ~ stop valve.

10-4 ~ discharger in bulk.

10-5 ~ pass through material device.

10-6 ~ fertilizer transport vehicle.

10-7 ~ revolution discharger.

10-8 ~ revolution discharger.

10-9 ~ single-stage bag filter.

10-10 ~ exhaust blower.

10-11 ~ revolution discharger.

Specific embodiment

As shown in figure 1, present invention offer is a kind of to take the method that wind takes heat from rotary kiln, heat smoke is taken from rotary kiln 0 Go out, the heat smoke is taken out from the smoke-box 0-2 of 0 kiln tail of the rotary kiln.

As one kind preferably, the heat smoke temperature taken out from 0 kiln tail smoke-box of the rotary kiln is 950 degrees Celsius to 1200 Degree Celsius.So be conducive to more discharging the chloride ion in smoke-box 0-2.

The technological means that present embodiment is taken out from the smoke-box of the rotary kiln as a result of the heat smoke, So, the higher heat smoke of temperature can be obtained, the temperature of heat smoke is 950 degrees Celsius to 1200 degrees Celsius, the heat of higher temperature Water content big alternative materials can be dried by flue gas, it is not necessary to using coal-fired afterburning stove as drying thermal source, greatly save The about energy, the alternative materials after drying can meet the technological requirement of production cement；The method is also helped in alternative materials Chloride ion is discharged, the chlorine ion concentration in heat smoke can reach 2.6g/Nm³, it is that improvement below creates advantage.

Improve as one kind of present embodiment, as shown in figure 1, will take out from 0 kiln tail smoke-box 0-2 of the rotary kiln Heat smoke is sent to drying system 4, or, the heat smoke taken out from 0 kiln tail smoke-box 0-2 of the rotary kiln is used to prepare potash fertilizer Or it is used for the raw material of industry, it is, of course, also possible to be by a part for the heat smoke taken out from 0 kiln tail smoke-box 0-2 of the rotary kiln Drying system 4 is sent to, meanwhile, the heat smoke another part taken out from 0 kiln tail smoke-box 0-2 of the rotary kiln is used to prepare potassium Fertilizer is used for the raw material of industry.

Present embodiment is sent to drying system as a result of by the heat smoke taken out from the rotary kiln smoke-box, And/or, the heat smoke taken out from the rotary kiln smoke-box is used to prepare potash fertilizer or the technology handss for the raw material of industry Section, so, heat smoke can be utilized according to practical situation, play the not same-action of heat smoke, both make use of the heat in heat smoke Value, and the chloride ion in heat smoke is processed, change harmful to treasure.

Further improve as present embodiment, as shown in figure 1, will take from 0 kiln tail smoke-box 0-2 of the rotary kiln The heat smoke for going out is sent to drying system 4, and/or, the heat smoke taken out from 0 kiln tail smoke-box 0-2 of the rotary kiln is used to make Dust removal process and/or cooling treatment are carried out first before standby potash fertilizer.

As one kind preferably, the drying system 4 is drying crushing system and/or raw material grinding system.As such, it is possible to set Count out the cement kiln production line with carbide slag as raw material.

Present embodiment as a result of by the heat smoke taken out from the rotary kiln smoke-box be sent to drying system System, and/or, dust removal process is first carried out before the heat smoke taken out from the rotary kiln smoke-box is used to prepare potash fertilizer And/or the technological means of cooling treatment, so, first achloride can be separated out, be conducive to raising to prepare the quality of potash fertilizer.

Further improve as present embodiment, as shown in figure 1, the dust removal process includes that 3-stage dust-removal is processed, The cooling treatment includes three-level cooling treatment, and the heat smoke to taking out from 0 kiln tail smoke-box 0-2 of the rotary kiln first carries out Primary dust removing process and first order cooling treatment, then second level dust removal process is carried out, drying system 4 is then sent to, by the first order The kiln ash collected after dust removal process is returned in rotary kiln 0, and the kiln ash collected after the dust removal process of the second level is sent to kiln tail pyrolysis In final stage preheater discharge duct at the top of stove 0-1.It is of course also possible to be, to taking out from 0 kiln tail smoke-box 0-2 of the rotary kiln Heat smoke first carry out first order dust removal process and first order cooling treatment, then carry out second level dust removal process and second level cooling Process, then, carry out third level cooling treatment and third level dust removal process, the kiln collected after first order dust removal process ash is returned To in rotary kiln 0, the final stage preheater discharging kiln ash collected after the dust removal process of the second level being sent at the top of kiln tail pyrolysis oven 0-1 Guan Zhong, by the kiln collected after third level dust removal process ash for preparing potash fertilizer, the heat smoke that will be obtained after third level dust removal process It is sent to the grate-cooler 9 of 0 kiln hood of rotary kiln.It is also possible that to the heat smoke elder generation taken out from 0 kiln tail smoke-box 0-2 of the rotary kiln First order dust removal process and first order cooling treatment are carried out, then carries out second level dust removal process, will be received after first order dust removal process The kiln ash of collection is returned in rotary kiln 0, and the kiln ash collected after the dust removal process of the second level is sent to the end at the top of kiln tail pyrolysis oven 0-1 In level preheater discharge duct, then, the part in the heat smoke that will be obtained after the dust removal process of the second level is sent to drying system 4, Meanwhile, the another part in the heat smoke that will be obtained after the dust removal process of the second level carries out second level cooling treatment, then carries out the 3rd Level cooling treatment and third level dust removal process, by the kiln collected after third level dust removal process ash for preparing potash fertilizer, by the third level The heat smoke obtained after dust removal process is sent to the grate-cooler 9 of 0 kiln hood of rotary kiln.

As one kind preferably, the heat smoke temperature after first order cooling treatment is 550 degrees Celsius to 700 degrees Celsius. So, be conducive to separating out achloride, and enter kiln using achloride as cement raw material.

Heat smoke temperature after the cooling treatment of the second level is 320 degrees Celsius to 400 degrees Celsius.So, can be the 3rd Level cooling treatment is prepared, and greatly improves the amount of precipitation of chloride ion.

Heat smoke temperature after third level cooling treatment is 130 degrees Celsius to 170 degrees Celsius.So, can be by hot cigarette Chloride ion in gas is greatly separated out.

The first order dust removal process and first order cooling treatment use the wind that takes with whirlwind cooling and dedusting to take heat Device 1, the first order dust removal process are to drive heat smoke to spin motion by whirlwind air, make the kiln ash in heat smoke Separate out and, the first order cooling treatment mixes air to heat smoke and carries out.So, be conducive to the non-chlorinated that will be isolated Thing is sent to cement kiln.

The heat smoke air quantity taken out from 0 kiln tail smoke-box 0-2 of the rotary kiln is 0 kiln tail smoke-box total blast volume of rotary kiln 3%-25%.As such, it is possible to heat removal discharges chloride ion from rotary system.

The second level dust removal process is carried out by cyclone separator 3, by the course for changing heat smoke, is made Kiln ash in heat smoke is separated, and the second level cooling treatment is to mix air to heat smoke by cold wind butterfly valve 5 to carry out 's.As such, it is possible to make heat smoke temperature further reduce.

The third level cooling treatment is carried out by multitube cooler 6, using natural air with heat smoke in air cooling The heat dissipation interface of multitube cooler carries out the type of cooling of surface heat exchange, and the third level dust removal process is by three-level pocket type What dust-precipitator 7 was carried out.As such, it is possible to flue-gas temperature be reduced in the case where air quantity is not increased, meet dust-precipitator use requirement.

The kiln ash collected after third level dust removal process is stored in kiln ash silo 10.As such, it is possible under collecting cleaner unit The fine ash rich in chloride ion come is sent in kiln ash silo.

The kiln ash collected during the cooling treatment of the second level is sent in the kiln ash silo 10.So, containing harmful element The higher kiln ash of content can be with discharge system.

The flue gas discharged from the decompression ash overflow port of the kiln ash silo 10 is removed by single-stage bag filter 10-9 Dirt process, the kiln ash collected after dust removal process is sent in the kiln ash silo 10, the uncontaminated gases obtained after dust removal process arrange to In air.As such, it is possible to keep tiny structure in kiln ash silo, put in storage beneficial to kiln ash.

Kiln ash in the kiln ash silo 10 passes through steam that material device 10-5 discharge from described by passing through material device 10-5 dischargings Dust removal process is carried out by the single-stage bag filter 10-9, the kiln ash collected after dust removal process is sent to the kiln ash silo 10 In, the uncontaminated gases obtained after dust removal process are arranged in air.So, realize and pass through the tiny structure operation of material device.

Heat smoke exports the wind speed of 0-5：15-40m/s；

Take the wind speed that wind takes 1 tangent air inlet 1-5 of thermal:12-35m/s；

Take wind and take 1 imaginary section wind speed of thermal:6m/s-13m/s；

Take wind and take 1 SR of thermal:400Pa-1300Pa；

Take wind and take 1 system draw ratio of thermal:3-7 times；

Take wind and take 1 heat smoke of thermal outlet 0-5 diameters and inner core 1-2 diameter ratios:0.6-0.71；

Go out to take the air velocity duct that wind takes 1 gas outlet 1-8 of thermal:12m/s-23 m/s；

Take length and width ratio that wind takes 1 tangent air inlet 1-5 of thermal:1-12 times.

As a result of the dust removal process, present embodiment includes that 3-stage dust-removal is processed, the cooling treatment includes three-level Cooling treatment, the heat smoke to taking out from the rotary kiln smoke-box first carry out first order dust removal process and first order cooling Process, then carry out second level dust removal process, be then sent to drying system, the kiln ash collected after first order dust removal process is returned to In rotary kiln, in the final stage preheater discharge duct that the kiln ash collected after the dust removal process of the second level is sent at the top of kiln tail pyrolysis oven Technological means, so, not only can the alternative materials big to water content carry out effective drying and processing, moreover, it is also possible to will be from The flue dust separated out in heat smoke（Achloride）Send in kiln as cement raw material and make cement, substantially reduce air pollution. First carry out at first order dust removal process and first order cooling when the heat smoke to taking out from the rotary kiln smoke-box is adopted Reason, then second level dust removal process and second level cooling treatment are carried out, then, carry out at third level cooling treatment and third level dedusting Reason, the kiln ash collected is returned in rotary kiln, the kiln ash collected after the dust removal process of the second level is sent after first order dust removal process To in the final stage preheater discharge duct at the top of kiln tail pyrolysis oven, the kiln collected after third level dust removal process ash is used to prepare potassium Fertilizer, during the technological means of the grate-cooler that the heat smoke obtained after third level dust removal process is sent to rotary kiln end, can by from The pollutant separated out in heat smoke are sent in kiln and are disposed, and can avoid air pollution.When using to from the rotary kiln smoke-box The heat smoke of middle taking-up first carries out first order dust removal process and first order cooling treatment, then carries out second level dust removal process, by The kiln ash collected after primary dust removing process is returned in rotary kiln, and the kiln ash collected after the dust removal process of the second level is sent to kiln tail heat In the final stage preheater discharge duct in solution furnace roof portion, then, the part in the heat smoke that will be obtained after the dust removal process of the second level is sent To drying system, meanwhile, the another part in the heat smoke that will be obtained after the dust removal process of the second level carries out second level cooling treatment, Third level cooling treatment and third level dust removal process are carried out again, and the kiln collected after third level dust removal process ash is used to prepare potassium Fertilizer, during the technological means of the grate-cooler that the heat smoke obtained after third level dust removal process is sent to rotary kiln end, can by from The flue dust separated out in heat smoke（Achloride）Send in kiln as cement raw material and make cement, air can be reduced or avoided dirty Dye.

As shown in figure 1, present embodiments provide for a kind of desirable wind takes the rotary system of heat, including rotary kiln 0 is described The kiln tail of rotary kiln 0 is connected with pyrolysis oven 0-1 by smoke-box 0-2, and the lateral wall of 0 kiln tail smoke-box 0-2 of the rotary kiln is provided with Heat smoke exports 0-5.

As one kind preferably, the elevation angle of the smoke-box 0-2 heat smokes outlet 0-5 is 30 degree to 60 degree.So, be conducive to cigarette The return of ash.

Further, the elevation angle of the smoke-box 0-2 heat smokes outlet 0-5 is 45 degree.So, flue dust can be made to return more suitable Freely.

As can be seen that the low profile of the smoke-box 0-2 is in cylinder from Fig. 1 and Fig. 8, outside the top of the smoke-box 0-2 Shape is in butt upper cone, and the heat smoke outlet 0-5 of the smoke-box 0-2 is positioned at the top of the smoke-box 0-2.It is of course also possible to be As shown in Fig. 2 the heat smoke outlet 0-5 of the smoke-box 0-2 is positioned at the bottom of the smoke-box 0-2.As such, it is possible to be returned according to different The production run state of rotary kiln, determines harmful element concentration highest regional location, it is determined that taking wind takes thermal in the position of smoke-box Put.

As one kind preferably, the drift angle of the butt upper cone is 30 degree to 60 degree.As such, it is possible to according to cement plant scene Situation flexible arrangement.

Further, the drift angle of the butt upper cone is 45 degree.In this manner it is ensured that more than material angle of repose.

Yet further, the smoke-box 0-2 is provided with air bubble 0-3, and the air bubble 0-3 is communicated with air tank 0-4.This Sample, can prevent smoke-box from blocking.

Present embodiment is provided with the technology that heat smoke is exported as a result of the lateral wall of the rotary kiln smoke-box Means, so, the higher heat smoke of temperature can be obtained, the temperature of heat smoke is 950 degrees Celsius to 1200 degrees Celsius, higher temperature Heat smoke water content big alternative materials can be dried, it is not necessary to using coal-fired afterburning stove as drying thermal source, significantly Ground energy saving, the alternative materials after drying can meet the technological requirement of production cement；The method is also helped alternative materials In chloride ion discharge, the chlorine ion concentration in heat smoke can reach 2.6g/Nm³, it is that improvement below creates advantage.

Improve as one kind of present embodiment, as depicted in figs. 1 and 2, the heat smoke of smoke-box 0-2 outlet 0-5 with The heat smoke inlet communication that wind takes thermal 1 is taken, the wind that takes takes thermal 1 with first order dust arrester and first order cooling Device, the wind that takes take the heat smoke outlet of thermal 1 and the heat smoke inlet communication of second level dust arrester, the second level The heat smoke outlet of dust arrester and the heat smoke inlet communication of drying system 4.

Present embodiment exports and takes the heat smoke import company that wind takes thermal as a result of the heat smoke of the smoke-box It is logical, it is described take wind and take thermal there is first order dust arrester and first order chiller, it is described to take the hot cigarette that wind takes thermal Gas exports the heat smoke inlet communication with second level dust arrester, heat smoke outlet and the drying system of the second level dust arrester The technological means of the heat smoke inlet communication of system, so, heat smoke can be utilized according to practical situation, play the difference of heat smoke Effect, both make use of the heat in heat smoke, can separate out the achloride in heat smoke again and separate, achloride is used for water Mud raw material.

Further improve as present embodiment, as shown in Fig. 2 it is described take wind and take thermal 1 include outer tube 1-1 and interior Cylinder 1-2, the outer tube 1-1 are enclosed within the inner core 1-2, structure between the outer wall of the inwall of the outer tube 1-1 and the inner core 1-2 Space is circularized, the outlet port of the inner core 1-2 is tightly connected with one end of the outer tube 1-1, the air inlet of the inner core 1-2 Constitute air outlet between mouthful end and the other end of the outer tube 1-1, the heat of the other end of the outer tube 1-1 and the smoke-box 0-2 Exhanst gas outlet 0-5 sealing connections, the side wall of the outer tube 1-1 are provided with tangent air inlet 1-5.

Present embodiment as a result of it is described take wind and take thermal include outer tube and inner core, the outer sleeve is described interior On cylinder, between the outer wall of the inwall of the outer tube and the inner core, constitute annular space, the outlet port of the inner core with it is described One end of outer tube is tightly connected, and air outlet is constituted between the other end of the inlet port of the inner core and the outer tube, described outer The other end of cylinder is connected with the heat smoke exit seal of the smoke-box, and the side wall of the outer tube is provided with the technology of tangent air inlet Means, so, take wind and take the negative pressure extracting heat smoke that thermal can rely on present invention process system to be formed, using a cooling wind Air is blasted machine the tangent air inlet for taking that wind takes thermal, and air is taking the outer wall that wind takes the inwall and inner core of thermal outer tube Between annular space guiding under, rotatably enter and take wind and take thermal, the heat smoke to taking out carries out the cooling of varying degree, And cyclonic separation is carried out by big particle in heat smoke of the effect of eddy flow by taking-up, return in kiln system.

Further improve as present embodiment, as shown in Fig. 2 the shape of the tangent air inlet 1-5 is in strip Shape, the length direction of the tangent air inlet 1-5 are identical with the length direction of the outer tube 1-1, the tangent air inlet 1-5's Length is corresponding to the length of the outer tube 1-1, and the strip tangent air inlet 1-5 is configured with reducing air inlet joint 1-6, institute The air-out mouth-shaped for stating reducing air inlet joint 1-6 is elongated, it can be seen from figure 7 that the reducing air inlet joint 1-6 Air intake mouth-shaped it is rounded and have flange.It is of course also possible to be as shown in figure 8, the tangent air inlet 1-5 is offset to institute One end of outer tube 1-1 is stated, helical duct 1-11 in the annular space, is provided with, spiral described in the tangent air inlet 1-5 leads to One end connection of road 1-11, the other end of the helical duct 1-11 are connected with the heat smoke outlet 0-5 of the smoke-box 0-2.

As one kind preferably, the length of the strip tangent air inlet 1-5 and width ratio are 1-12；The helical duct Outer walls of the 1-11 by the flight being arranged in the annular space with the inwall and the inner core 1-2 of the outer tube 1-1 is constituted. It is of course also possible to be, the helical duct 1-11 is made up of the helical pipe being arranged in the annular space, the spiral Pipeline is centered around the outer wall of the inner core 1-2.

Present embodiment is elongated as a result of the shape of the tangent air inlet, the length of the tangent air inlet Direction is identical with the length direction of the outer tube, and the length of the tangent air inlet is corresponding to the length of the outer tube, the length Bar shaped tangent air inlet is configured with reducing air inlet joint, and the air-out mouth-shaped of the reducing air inlet joint is elongated, institute The air intake mouth-shaped for stating reducing air inlet joint is rounded；Or, the tangent air inlet is offset to one end of the outer tube, institute State, one end connection of helical duct described in the tangent air inlet, the helical duct The other end and the heat smoke outlet of the smoke-box technological means, so, can be produced according to the demand of different clients The different wind that take take thermal.

Also further improve as present embodiment, as shown in figure 4, the circular in cross-section of the outer tube 1-1, described Inner core 1-2 circular in cross-section, the outer tube 1-1 inwalls are equal everywhere with the distance between the inner core 1-2 outer walls.From Fig. 4 In as can be seen that the outer tube 1-1 cross section and inner core 1-2 cross section constitute concentric circular.It is of course also possible to be such as Fig. 5 Shown, the cross section of the outer tube 1-1 is in the not isometrical circle of disloyalty, and the inner core 1-2 cross sections are in the isometrical circle of disloyalty, are cut from close To at air inlet 1-5 along the circumferential at away from tangent air inlet 1-5 of air intake traveling, the outer tube 1-1 inwalls are interior with described The distance between cylinder 1-2 outer walls are gradually reduced.From figure 5 it can be seen that the shape of the inner core 1-2 cross sections is by two （It is very short）The closure bulge loop shape that isometric parallel lines and two sections of isometrical semi arches are surrounded, the cross section of the outer tube 1-1 is by a left side Semi arch and right semi-circle arc are constituted, and the radius of the left semicircle arc is less than the radius of the right semi-circle arc, the left semicircle arc Lower end is tangent with the lower end of the right semi-circle arc to dock, and the upper end of the left semicircle arc constitutes institute with the upper end of the right semi-circle arc Tangent air inlet 1-5 is stated, the center of circle of the left semicircle arc is located on the midpoint of two sections of isometrical semi arches, two circle center line connectings. Can also be as shown in fig. 6, the cross section of the outer tube 1-1 is in the not isometrical circle of three-core, and the inner core 1-2 cross sections are in disloyalty etc. Footpath is justified, from close tangent air inlet 1-5 along the circumferential at away from tangent air inlet 1-5 of air intake, the outer tube 1-1 inwalls It is gradually reduced with the distance between inner core 1-2 outer walls.From fig. 6, it can be seen that the shape of the inner core 1-2 cross sections be by Two（It is very short）The closure bulge loop shape that isometric parallel lines and two sections of isometrical semi arches are surrounded, the cross section of the outer tube 1-1 is It is made up of upper left corner circular arc, lower left corner circular arc and right semi-circle arc, the radius of the upper left corner circular arc is less than the lower left corner circular arc Radius, the radius of the radius of the lower left corner circular arc less than the right semi-circle arc, the lower end of the upper left corner circular arc with it is described The tangent docking in upper end of lower left corner circular arc, the lower end of the lower left corner circular arc is tangent with the lower end of the right semi-circle arc to dock, institute The upper end and the upper end of the right semi-circle arc for stating upper left corner circular arc constitutes the tangent air inlet 1-5, the upper left corner circular arc The center of circle is located on the midpoint of two sections of isometrical semi arches, two circle center line connectings, and the center of circle of the lower left corner circular arc is located at described two On the center of circle of the right semi-circle arc in the isometrical semi arch of section.

As one kind preferably, it is by method that the outlet port of the inner core 1-2 is tightly connected with one end of the outer tube 1-1 Blue sealing structure connection.So, both ensured sealing effectiveness, again can be with maintenance easy to disassemble.

Further, it is logical that the other end of the outer tube 1-1 is connected with the heat smoke outlet 0-5 sealings of the smoke-box 0-2 The sealing connection of transition conduit 1-3 is crossed, the circumferentially distributed of transition conduit 1-3 has air bubble 1-10.Can so prevent heat smoke from going out Mouth 0-5 blockings.

The outlet port of the inner core 1-2 is provided with tee pipe coupling 1-7, the shape of the tee pipe coupling 1-7 in "T” Font, one end of the tee pipe coupling 1-7 are connected with the outlet port of the inner core 1-2, and the tee pipe coupling 1-7's is another One end is inspection socket, and the inspection socket is configured with inspection door 1-9, and the 3rd end of the tee pipe coupling 1-7 is gas outlet 1-8, From figure 3, it can be seen that the gas outlet 1-8 is for circle and has flange.3rd end of the tee pipe coupling 1-7 with it is described 30 degree to 60 degree angles are formed between the other end of tee pipe coupling 1-7.So, be conducive to the installation of pipeline.

The tangent air inlet 1-5 is connected with quenching blower fan 2.So, quenching wind can take wind with rotation direction entrance and take thermal.

Stop valve 2-1 is serially connected between the tangent air inlet 1-5 and the quenching blower fan 2.So, in bypass system Exhaust blower can be disconnected when disabling by system with system.

The air inlet of the quenching blower fan 2 is serially connected with stop valve 2-2.So, it is easy to the startup of blower fan, while can also use In the regulation of fan delivery and blast.

Between 3rd end of the tee pipe coupling 1-7 and the other end of the tee pipe coupling 1-7, shape is in angle of 45 degrees. In this manner it is ensured that more than material angle of repose.

Circular in cross-section of the present embodiment as a result of the outer tube, the inner core circular in cross-section are described The distance between outer tube inner wall and inner tank theca technological means equal everywhere, so, take wind take the structure of thermal compared with Simply, production and processing is easier to, and production cost is relatively low.In the cross section using the outer tube is in the not isometrical circle of disloyalty, is described Cylinder cross section is in the isometrical circle of disloyalty, from close tangent air inlet along the circumferential at away from tangent air inlet of air intake traveling, During the technological means that the distance between the outer tube inner wall and described inner tank theca are gradually reduced, be conducive to improving air in annular Swirl velocity in space, and then, be conducive to improving the heat smoke swirl velocity for taking out, finally, being conducive to will be thick in heat smoke Bulky grain is separated from heat smoke.When the cross section using the outer tube is in the not isometrical circle of three-core, the inner core cross section The isometrical circle in disloyalty, from close tangent air inlet along the circumferential at away from tangent air inlet of air intake, the outer tube inner wall During the technological means being gradually reduced with the distance between the inner tank theca, air can be further improved in annular space Swirl velocity, and then, the heat smoke swirl velocity of taking-up can be further improved, finally, further will be more in heat smoke Big particle is separated from heat smoke.

Also further improve as present embodiment, as shown in figure 1, the heat smoke outlet of the second level dust arrester With the heat smoke inlet communication of third level chiller, heat smoke outlet and the third level dedusting of the third level chiller are filled The heat smoke inlet communication put, the soot door of the third level dust arrester and the flue dust inlet communication of kiln ash silo 10, it is described The heat smoke outlet of second level dust arrester is provided with second level chiller with the heat smoke import of third level chiller.

As one kind preferably, the heat smoke outlet of the third level dust arrester is by exhaust blower 8 and the air intake of grate-cooler 9 Mouth connection.So be conducive to protecting working environment.

Cold wind butterfly valve 9-1 is provided between the exhaust blower 8 and grate-cooler 9.As such, it is possible to adjusting bypass flue gas enters cooling The gas temperature of machine.

Stop valve 8-1 is serially connected between the third level dust arrester and the exhaust blower 8.As such, it is possible to make exhaust blower It is isolated from outside system, it is possible to regulating system airflow pressure.

Cold wind butterfly valve 6-2 is provided between the third level chiller and the third level dust arrester.As such, it is possible to Flexible enters the flue-gas temperature of dust arrester.

Stop valve 7-1 is serially connected between the cold wind butterfly valve 6-2 and the third level dust arrester.As such, it is possible to flexibly Adjust the flue gas air quantity blast into third level dust arrester.

Stop valve 6-1 is serially connected between the second level chiller and the third level chiller.As such, it is possible to clever The flue gas air quantity blast adjusted into third level dust arrester living.

Stop valve 4-1 is serially connected between the second level dust arrester and the drying system 4.As such, it is possible to will drying Crushing system is isolated from and takes wind and take outside hot systems, it is possible to be adjusted into drying the airflow pressure of crushing system.

It is described take wind and take be serially connected with stop valve 3-1 between thermal 1 and the second level dust arrester.As such, it is possible to will Second level dust arrester is isolated from and takes wind and take outside hot systems, it is possible to be adjusted into the flue gas air quantity wind of second level dust arrester Pressure.

The second level dust arrester is cyclone separator 3, and the second level chiller is cold wind butterfly valve 5, described Three-level chiller is multitube cooler 6, and the third level dust arrester is three-level bag filter 7.As such, it is possible to through many Level cooling, reasonably to mix cold blast rate, obtains the flue-gas temperature of suitable discharge system.

Multistage preheater 0-6 is provided with the top of the pyrolysis oven 0-1, the multistage preheater 0-6 is concatenated, the top Preheater 0-6 is chopped-off head preheater, and the preheater 0-6 of bottom is final stage preheater, the soot door of the cyclone separator 3 Connected with the discharge duct in the final stage preheater by double flap valve 3-2.As such, it is possible to by take wind take the torrid zone go out cinder return Return kiln system to dispose.

The flue dust inlet communication of the soot door of the multitube cooler 6 and the kiln ash silo 10.As such, it is possible to by multitube Outside the kiln ash discharge system that cooler is collected.

The soot door of the multitube cooler 6 is connected by conveying worm 6-4 with the flue dust import of the kiln ash silo 10 It is logical.As such, it is possible to by multitube cooler collect kiln ash with mechanical mode of movement discharge system outside.

Double turning over is serially connected between the flue dust import of the soot door of the multitube cooler 6 and the conveying worm 6-4 Plate valve 6-3.In this manner it is achieved that lock wind in discharge process ensureing that discharging is smooth.

Revolution discharging is serially connected between the flue dust import of the soot door of the conveying worm 6-4 and the kiln ash silo 10 Device 10-7.In this manner it is achieved that lock wind in discharge process ensureing that discharging is smooth.

The three-level bag filter 7 has three bag filters, and each bag filter has soot door, each Flue dust inlet communication of the soot door of the individual bag filter all with the kiln ash silo 10.As such, it is possible to by bag collector Outside the kiln ash discharge system of collection.

The soot door of each bag filter passes through the flue dust of conveying worm 7-3 and the kiln ash silo 10 Inlet communication.As such, it is possible to by bag collector collect kiln ash with mechanical mode of movement discharge system outside.

Concatenate between the soot door of each bag filter and the flue dust import of the conveying worm 7-3 There is revolution discharger 7-2.In this manner it is achieved that lock wind in discharge process ensureing that discharging is smooth.

Revolution discharging is serially connected between the flue dust import of the soot door of the conveying worm 7-3 and the kiln ash silo 10 Device 10-11.In this manner it is achieved that lock wind in discharge process ensureing that discharging is smooth.

The top of the kiln ash silo 10 is in cylinder, and the bottom of the kiln ash silo 10 is in lower cone, the kiln ash silo 10 Inwall is inlay anti-wall built-up liner, and the next top of the lower cone is provided with soot door, the soot door of the kiln ash silo 10 with Pass through the 10-5 connections of material device.As such, it is possible to by outside the kiln ash discharge system in kiln ash silo.

The soot door of the kiln ash silo 10 is connected with the material device 10-5 that passes through by discharger 10-4 in bulk.So, Can be by outside the ash discharge system of the kiln in kiln ash silo.

The circumferentially distributed of the lower cone has nozzle 10-1, the nozzle 10-1 to connect with roots blower 10-2.So, may be used To carry out fluidization to kiln ash in bin bottom, it is easy to kiln ash to draw off.

The material device 10-5 that passes through is provided with decompression ash overflow port, the decompression ash overflow port and single-stage bag for passing through material device 10-5 The gas approach connection of formula dust-precipitator 10-9, the cigarette of the soot door of the single-stage bag filter 10-9 and the kiln ash silo 10 Grey inlet communication, the gas outlet of the single-stage bag filter 10-9 are connected with exhaust blower 10-10.In this manner it is ensured that kiln is grey Tiny structure is kept in storehouse, and is made in the smooth entrance kiln ash silo of dust of the bag collector discharge.

The kiln ash silo 10 is provided with decompression ash overflow port, and the decompression ash overflow port of the kiln ash silo 10 is received with the single-stage pocket type The gas approach connection of dirt device 10-9.In this manner it is ensured that kiln ash Jing decompression ash overflow ports are unloaded outside kiln discharge ash silo.

Height of the setting height(from bottom) for passing through material device 10-5 more than fertilizer transport vehicle 10-6.So, be conducive to flue dust Injection fertilizer transport vehicle.

Heat smoke outlet and third level chiller of the present embodiment as a result of the second level dust arrester Heat smoke inlet communication, heat smoke outlet and the heat smoke import of third level dust arrester of the third level chiller connect It is logical, the soot door of the third level dust arrester and the flue dust inlet communication of kiln ash silo, the heat of the second level dust arrester The heat smoke import of exhanst gas outlet and third level chiller is provided with the technological means of second level chiller, so, not only Can the alternative materials big to water content carry out effective drying and processing, moreover, it is also possible to produce high-quality potash fertilizer.This The bright production line suitable for cement is prepared using the carbide slag of rotary kiln disposal high-moisture and high chlorinity.It is also applied for simultaneously A large amount of cement rotary kiln production lines using replacement crude fuel.

Claims (5)

1. it is a kind of to take method that wind take heat from cement rotary kiln for preparing potash fertilizer, by heat smoke from rotary kiln（0）Middle taking-up, its It is characterised by：The heat smoke is from the rotary kiln（0）The smoke-box of kiln tail（0-2）Middle taking-up；Will be from the rotary kiln（0）Kiln tail Smoke-box（0-2）The heat smoke of middle taking-up is sent to drying system（4）, and will be from the rotary kiln（0）Kiln tail smoke-box（0-2）Middle taking-up Heat smoke be used for prepare potash fertilizer；Or, only will be from the rotary kiln（0）Kiln tail smoke-box（0-2）The heat smoke of middle taking-up is used for Prepare potash fertilizer, also, will be from the rotary kiln（0）Kiln tail smoke-box（0-2）Before the heat smoke of middle taking-up is used to prepare potash fertilizer Dust removal process and/or cooling treatment are carried out first；The dust removal process includes that 3-stage dust-removal is processed, and the cooling treatment includes three-level Cooling treatment, to from the rotary kiln（0）Kiln tail smoke-box（0-2）The heat smoke of middle taking-up first carries out first order dust removal process and One-level cooling treatment, then second level dust removal process is carried out, then it is sent to drying system（4）, will collect after first order dust removal process Kiln ash return to rotary kiln（0）In, the kiln ash collected after the dust removal process of the second level is sent to into kiln tail pyrolysis oven（0-1）Top In final stage preheater discharge duct；Or, to from the rotary kiln（0）Kiln tail smoke-box（0-2）The heat smoke of middle taking-up first carries out Primary dust removing process and first order cooling treatment, then carry out second level dust removal process and second level cooling treatment, then, carry out the Three-level cooling treatment and third level dust removal process, the heat smoke temperature after first order cooling treatment are 550 degrees Celsius to 700 Degree Celsius, the heat smoke temperature after the cooling treatment of the second level is 320 degrees Celsius to 400 degrees Celsius, is cooled down through the third level Heat smoke temperature after process is 130 degrees Celsius to 170 degrees Celsius, and the kiln ash collected after first order dust removal process is returned to back Rotary kiln（0）In, the kiln ash collected after the dust removal process of the second level is sent to into kiln tail pyrolysis oven（0-1）The final stage preheater discharging at top Guan Zhong, by the kiln collected after third level dust removal process ash for preparing potash fertilizer, the heat smoke that will be obtained after third level dust removal process It is sent to rotary kiln（0）The grate-cooler of kiln hood（9）；Or, to from the rotary kiln（0）Kiln tail smoke-box（0-2）The hot cigarette of middle taking-up Gas first carries out first order dust removal process and first order cooling treatment, then carries out second level dust removal process, by first order dust removal process The kiln ash collected afterwards returns to rotary kiln（0）In, the kiln ash collected after the dust removal process of the second level is sent to into kiln tail pyrolysis oven（0-1） In the final stage preheater discharge duct at top, then, the part in the heat smoke that will be obtained after the dust removal process of the second level is sent to baking Dry systems（4）, meanwhile, the another part in the heat smoke that will be obtained after the dust removal process of the second level carries out second level cooling treatment, Third level cooling treatment and third level dust removal process are carried out again, and the kiln collected after third level dust removal process ash is used to prepare potassium The heat smoke obtained after third level dust removal process is sent to rotary kiln by fertilizer（0）The grate-cooler of kiln hood（9）.

2. a kind of rotary cement kiln system that wind takes heat that takes for preparing potash fertilizer, including rotary kiln（0）, the rotary kiln（0） Kiln tail pass through smoke-box（0-2）With pyrolysis oven（0-1）Connection, it is characterised in that：The rotary kiln（0）Kiln tail smoke-box（0-2）'s Lateral wall is provided with heat smoke outlet（0-5）；The smoke-box（0-2）Heat smoke outlet（0-5）Thermal is taken with wind is taken（1）'s Heat smoke inlet communication, the wind that takes take thermal（1）It is with first order dust arrester and first order chiller, described to take wind Take thermal（1）Heat smoke outlet and the heat smoke inlet communication of second level dust arrester, the second level dust arrester Heat smoke is exported and drying system（4）Heat smoke inlet communication；The heat smoke outlet and the 3rd of the second level dust arrester The heat smoke inlet communication of level chiller, the heat smoke outlet of the third level chiller and the heat of third level dust arrester Gas approach is connected, soot door and the kiln ash silo of the third level dust arrester（10）Flue dust inlet communication, described second The heat smoke outlet of level dust arrester is provided with second level chiller with the heat smoke import of third level chiller.

It is 3. according to claim 2 to take the rotary cement kiln system that wind takes heat, it is characterised in that：The wind that takes takes thermal （1）Including outer tube（1-1）And inner core（1-2）, the outer tube（1-1）It is enclosed within the inner core（1-2）On, the outer tube（1-1）'s Inwall and the inner core（1-2）Outer wall between constitute annular space, the inner core（1-2）Outlet port and the outer tube （1-1）One end be tightly connected, the inner core（1-2）Inlet port and the outer tube（1-1）The other end between constitute out Air port, the outer tube（1-1）The other end and the smoke-box（0-2）Heat smoke outlet（0-5）Sealing connection, the outer tube （1-1）Side wall be provided with tangent air inlet（1-5）.

It is 4. according to claim 3 to take the rotary cement kiln system that wind takes heat, it is characterised in that：The tangent air inlet （1-5）Shape it is elongated, the tangent air inlet（1-5）Length direction and the outer tube（1-1）Length direction phase Together, the tangent air inlet（1-5）Length and the outer tube（1-1）Length it is corresponding, the strip tangent air inlet（1- 5）It is configured with reducing air inlet joint（1-6）, the reducing air inlet joint（1-6）Air-out mouth-shaped it is elongated, it is described Reducing air inlet joint（1-6）Air intake mouth-shaped it is rounded；Or, the tangent air inlet（1-5）It is offset to the outer tube （1-1）One end, be provided with helical duct in the annular space（1-11）, the tangent air inlet（1-5）The spiral leads to Road（1-11）One end connection, the helical duct（1-11）The other end and the smoke-box（0-2）Heat smoke outlet（0-5） Connection.

It is 5. according to claim 4 to take the rotary cement kiln system that wind takes heat, it is characterised in that：The outer tube（1-1）'s Circular in cross-section, the inner core（1-2）Circular in cross-section, the outer tube（1-1）Inwall and the inner core（1-2）Outer wall it Between distance it is equal everywhere；Or, the outer tube（1-1）Cross section be in the not isometrical circle of disloyalty, the inner core（1-2）Cross section The isometrical circle in disloyalty, near tangent air inlet（1-5）Place along air intake advance it is circumferential to away from tangent air inlet（1-5） Place, the outer tube（1-1）Inwall and the inner core（1-2）The distance between outer wall is gradually reduced；Or, the outer tube（1-1） Cross section be in the not isometrical circle of three-core, the inner core（1-2）Cross section is in the isometrical circle of disloyalty, near tangent air inlet（1-5） Place is along the circumferential to away from tangent air inlet of air intake（1-5）Place, the outer tube（1-1）Inwall and the inner core（1-2）Outer wall The distance between be gradually reduced.