CN205741146U - A kind of iron agglomerate reduction degradation inhibitor flusher - Google Patents
A kind of iron agglomerate reduction degradation inhibitor flusher Download PDFInfo
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- CN205741146U CN205741146U CN201521007094.1U CN201521007094U CN205741146U CN 205741146 U CN205741146 U CN 205741146U CN 201521007094 U CN201521007094 U CN 201521007094U CN 205741146 U CN205741146 U CN 205741146U
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Abstract
This utility model relates to a kind of iron agglomerate reduction degradation inhibitor flusher, it is characterized in that, described flusher includes agitator tank, liquor box, compressed air gas storage bag, force (forcing) pump, control assembly and spray assembly, described liquor box is arranged between agitator tank and force (forcing) pump, described compressed air gas storage bag is connected with liquor box, inhibitor is delivered to spray assembly after agitator tank, liquor box, force (forcing) pump, is delivered to blast furnace process after spray assembly processes.It is low that this technical scheme solves sintering deposit inhibitor spraying efficiency in current production, and solution splashes and causes belt a large amount of sizing problem on belt.Flusher is not only suitable for the soluble kind based on calcium chloride, and is also applied for boracic, silicon dioxide difficulty solute, low chlorine environmental-protecting type inhibitor.
Description
Technical field
This utility model relates to a kind of flusher, is specifically related to a kind of iron agglomerate reduction degradation inhibitor flusher.
Background technology
Current blast furnace process is more and more higher to entering stove sinter quality requirement, do not require nothing more than that mechanical strength is good, chemical composition stability, objectionable impurities are few, but also there is good hot metallurgical performance, i.e. in shaft middle and upper part 500～600 DEG C of regions, under blast furnace reducing atmosphere, sintering ore pulverization rate is low.In recent years, in order to reduce Iron Ore Matching in Sintering cost, in raw materials for sintering, import high alumina ground hematite consumption increases, and uses low-carbon (LC) technique, sintering deposit ferrous oxide content to decline, and secondary bloodstone quantity increases, sintering deposit cryogenic reducting powder index (RDI in production operation+3.15) on a declining curve.Big blast fumance typically requires the RDI of sintering deposit+3.15Index controls more than 70, otherwise will cause the too much efflorescence of lump zone sintering deposit of blast furnace middle and upper part, and cause permeability of stock column to deteriorate, affect blast furnace stable smooth operation.
Mei Shan iron company sintering deposit RDI+3.15Index is 58～about 62, in order to contain RDI+3.15Index declines further, it is ensured that big blast fumance stable smooth operation, sintering deposit is sprayed chloride auxiliary agent and can effectively suppress sintering ore pulverization.Its principle is: spray chloride inhibitor on the sintering deposit of uniform temperature, and after moisture evaporation, solute crystallization or crystal absorption form layer protecting film in agglomerate surface and hole.On the one hand it hinders contacting of reducing gas and agglomerate surface；On the other hand thin film plugs reducing gas and enters the passage of sintering deposit, slow down the low-temperature reduction speed of sintering deposit, thus effectively inhibits the low temperature reduction degradation of sintering deposit.
In order to improve sintering deposit low-temperature reduction disintegration energy, sintering technology personnel update pulverization inhibitor spray processing and equipment.Such as Patent No. CN201120223262.6, entitled " halide spraying device for finished sintering ores " has a following technical scheme: paraboloidal be respectively provided with a shower above and below what finished product sintering deposit Belt Conveying tail wheel front, finished product sintering deposit blanking formed, shower connects halogenide delivery pump by connecting tube, and the central axis of each spray-hole of shower is formed paraboloidal tangent line in finished product sintering deposit blanking.Thus realize dynamically spraying and two-sided spray sintering deposit.Patent No. CN201010291771.2, entitled " a kind of sintering ore pulverization inhibitor and adding method thereof " technical scheme, depositing in liquid storage tank by the pulverization inhibitor prepared and stir, the first spray point uses water pump and jet pipe to spray the sintering deposit of central cooler；Second spray point uses water pump and shower nozzle to spray in finished belt；3rd spray point uses water pump and atomizing lance to spray in finished belt.The above inhibitor spray processing is with device compared with this utility model, and the main distinction shows: first, and flusher structure is different.Such as " halide spraying device for finished sintering ores " and " a kind of sintering ore pulverization inhibitor and adding method " thereof patent, do not use agitator tank and liquor box to combine form, solution is not used secondary stirring technology, does not use anti-splash device etc..Secondly, spray processing is different.Spray point as chosen can not cover all grades in finished product ore deposit, does not use uniform spray application；Spray method workload is big, it is impossible to realize unmanned, automatic spraying.The above inhibitor spray application is applied in production practices, but there is also some problems.First, using jet pipe perforate mode to there is spray solution non-uniform phenomenon, inhibitor consumption is higher, and sintering deposit powder consumption per ton is generally 70～130g.Secondly, existing spray method can cause fortune barrow belt surface overly moist, is stained with a large amount of dust, is deposited in below belt after belt material scraping plate scraper.For composite spraying agent, because its spray concentration is high, flow is big, and sprays tank volume and only have 1.8m3, need to add powder the most continuously, it is difficult to adapt to sinter big Production requirement；Composite spraying agent contains more difficult solute simultaneously, mechanical type agitating device and existence stirring dead angle, and operation troubles probability is high continuously, once mixing pump is stopped, containing more difficult solute in solution, causing pipeline and shower nozzle blocking, Mei Gang once utilized this technology in 2013, carry out composite spraying agent type approval test, because of can not continuous-stable spray and disable.Therefore, in the urgent need to improving existing inhibitor spray processing and equipment.
Utility model content
For the problem solving above-mentioned existence, the utility model discloses a kind of iron agglomerate reduction degradation inhibitor flusher, this apparatus structure is compact, it is ingenious to design, it is low that this technical scheme solves sintering deposit inhibitor spraying efficiency in current production, and solution splashes and causes belt a large amount of sizing problem on belt.Flusher is not only suitable for the soluble kind based on calcium chloride, and is also applied for boracic, silicon dioxide difficulty solute, low chlorine environmental-protecting type inhibitor.
To achieve these goals, the technical solution of the utility model is as follows, iron agglomerate reduction degradation inhibitor flusher, it is characterized in that, described flusher includes agitator tank, liquor box, compressed air gas storage bag, force (forcing) pump, control assembly and spray assembly, described liquor box is arranged between agitator tank and force (forcing) pump, described compressed air gas storage bag is connected with liquor box, inhibitor is delivered to spray assembly after agitator tank, liquor box, force (forcing) pump, and finished product sintering deposit is delivered to blast furnace process after spray assembly processes.
As a kind of improvement of the present utility model, being provided with an agitating device in described agitator tank, the upper end of agitator tank is connected with motor, and lower end is supported on bearing block, the blade of a described agitating device is provided with reinforcement horizontal by 35 55 ° of angles, the back side of blade.Being provided with secondary stirring device in described liquor box, described secondary stirring device uses compressed air to be stirred, and arranges 12-20 stir spot in described liquor box.This technical scheme installs Double stirring device, and to adapt to use low chlorine indissoluble inhibitor demand, stirring for the first time is located in agitator tank, stirs for mechanical type, two blade agitation solution of driven by motor when dosing.Shaft upper end is connected with motor, and lower end is supported on bearing block.Blade is horizontal by 35～55 ° of angles, and it is backed with reinforcement and supports.Second time stirring is located in liquor box, uses compressed air to be stirred, arranges 12～20 stir spots at liquor box, it is ensured that without stirring dead angle.Compressed air is (outlet pressure >=0.45MPa) after gas storage bag, transports to stir spot by φ 50～100mm pipeline, carries out winding-up stirring according to solution precipitation status, makes solution concentration uniform as far as possible, solves a liquor box sedimentation difficult problem.
As a kind of improvement of the present utility model, described control assembly includes that electromagnetic valve, Pressure gauge and effusion meter, described control assembly are arranged between force (forcing) pump and spray assembly.Spraying flow uses effusion meter, frequency conversion chemical industry force (forcing) pump to control, and automatically controls sprinkling, to meet the demand of different flow according to setting flow.
As a kind of improvement of the present utility model, described spray assembly includes three spray points, i.e. first spray point, the second spray point and the 3rd spray point, each spray point is provided with 1-3 shower nozzle, wherein more than 16mm grade sintering deposit on the first spray point correspondence belt, second spray point correspondence 10-16mm grade sintering deposit, the 3rd spray point correspondence 5-10mm grade sintering deposit.After being discharged to the second spray point due to the ore deposit on belt, stream has a upset, and flushing liquor not only covers all grades in finished product ore deposit, and can be sprayed onto the big lump ore back side.The position of spray point is located at strap end region, to stay time enough to evaporate by moisture, it is to avoid steam blocking emptying point dedusting airduct.Require that sintering deposit chilling temperature, at 70～150 DEG C, to ensure that the solution energy rapid draing sprayed forms thin film, reduces later process equipment bonding moist powder chance simultaneously.
As a kind of improvement of the present utility model, described spray assembly also includes that anti-splash device, described anti-splash device are arranged on the both sides of each spray point, prevents spray solution splash to empty belt.Described anti-splash device includes support frame, and support frame arranges a separation trough at interval of 5～8cm, surveys at shower nozzle two, along belt direction of travel, installation activity dash cord.Before and after spray point, making two frameworks across belt angle steel, framework arranges a separation trough at interval of 5～8cm.Survey at shower nozzle two, along belt direction of travel, installation activity dash cord.Dash cord requires abrasion-proof corrosion-proof, resistance to 150 DEG C of high temperature and is difficult to sizing, therefore selects PPS acid and alkali-resistance filter bag in sack cleaner, after double-layer folding, is screwed between two band steels, and to facilitate dismounting, band steel is placed on framework.Change according to sintering deposit stream and spray angle, separation trough adjusts dash cord position.Owing to arranging dash cord, and it is relatively low to spray flow, and sintering deposit belt conveyor sizing amount is few, reduces and sheds breeze scavenging amount on the way, does not affect belt properly functioning.
As a kind of improvement of the present utility model, connected by 90 ° of elbows above described shower nozzle.Spray and use adjustable atomizer.Owing to belt stream often has a segregation, and require to spray the most uniform.Therefore this utility model uses scalable thunderbolt shower nozzle to spray, and each capacity of sprinkler controls in 0.2～0.5t/h scope.After flushing liquor rotates along spiral high speed, spray from shower nozzle central outlet umbrella, have that atomizing effect is good, spray uniform feature.Shower nozzle bottom outlet uses threaded, rotatable backs out, convenient internal block clearing.In order to realize flexible shower nozzle direction, using 90 ° of elbows to connect in pipeline vertical direction, elbow upper limb is not screwed to the end under water-tight premise, makes the shower nozzle can be along belt lateral rotation, it is ensured that solution is sprayed in stream；Also connecting with 90 ° of elbows in pipe level direction, make shower nozzle can rotate in vertical direction, the vertical dimension between regulation shower nozzle and belt, shower nozzle keeps 0.3～0.5m with belt vertical dimension.
Relative to prior art, advantage of the present utility model is as follows, 1) whole Technical Design is ingenious, compact conformation, this technical scheme installs Double stirring device, and to adapt to use low chlorine indissoluble inhibitor demand, stirring for the first time is located in agitator tank, stir for mechanical type, two blade agitation solution of driven by motor when dosing；Second time stirring is located in liquor box, use compressed air is stirred, at liquor box, 12～20 stir spots are set, guarantee without stirring dead angle, transport to stir spot by φ 50～100mm pipeline, carry out winding-up stirring according to solution precipitation status, make solution concentration the most uniform, Double stirring device makes this utility model can be used for spraying low chlorine easily to precipitate kind, solve stable use composite spraying agent maximum technical barrier；2) after using this utility model, sintering deposit RDI+3.15Index improves 12～20, is effectively improved sintering deposit low-temperature reduction disintegration energy；Ton ore deposit inhibitor consumption declines 30～50% than existing spray pattern, sprays cost and substantially reduces, and owing to inhibitor consumption declines, the chloride ion content bringing blast furnace into declines, and reduces upper blast furnace equipment and the erosion of gas pipe.Further, since spray point is arranged on belt tail wheel region, steam evaporates on the way, reduces the probability of emptying point dedusting airduct blocking；3) in order to reduce spray solution splash to empty belt, installing anti-splash device, before and after spray point, make two frameworks across belt angle steel, framework arranges a separation trough at interval of 5～8cm.Survey at shower nozzle two, along belt direction of travel, installation activity dash cord.Dash cord requires abrasion-proof corrosion-proof, resistance to 150 DEG C of high temperature and is difficult to sizing, therefore selects PPS acid and alkali-resistance filter bag in sack cleaner, after double-layer folding, is screwed between two band steels, and to facilitate dismounting, band steel is placed on framework.Change according to sintering deposit stream and spray angle, separation trough adjusts dash cord position.Owing to arranging dash cord, and it is relatively low to spray flow, and sintering deposit belt conveyor sizing amount is few, reduces and sheds breeze scavenging amount on the way, does not affect belt properly functioning；4) this technical scheme decreases the workload of plant maintenance, and simple in construction is with low cost, is worth of widely use.
Accompanying drawing explanation
Fig. 1 is this utility model overall structure schematic diagram；
Fig. 2 is this utility model axonometric chart；
Fig. 3 is flusher structural representation；
Fig. 4 is Fig. 3 partial top view；
In figure: 1, agitator tank, 2, agitating device, 3, liquor box, 4, secondary stirring device, 5, compressed air gas storage bag, 6, frequency conversion force (forcing) pump, 7, electromagnetic valve, 8, Pressure gauge, 9, effusion meter, 10, the first spray point, the 11, second spray point, the 12, the 3rd spray point, 13, atomizing and spraying apparatus, 14, anti-splash device, 15, support frame, 16, dash cord, 17, shower nozzle.
Detailed description of the invention
In order to deepen to be appreciated and understood by of the present utility model, below in conjunction with the accompanying drawings and detailed description of the invention, it is further elucidated with this utility model.
Embodiment 1 :See Fig. 1 Fig. 3, a kind of iron agglomerate reduction degradation inhibitor flusher, described flusher includes agitator tank 1, liquor box 3, compressed air gas storage bag 5, force (forcing) pump 6, control assembly and spray assembly, described liquor box 3 is arranged between agitator tank 1 and force (forcing) pump 6, described compressed air gas storage bag 5 is connected with liquor box 3, inhibitor is through agitator tank 1, liquor box 3, it is delivered to spray assembly after force (forcing) pump 6, finished product sintering deposit is delivered to blast furnace process after spray assembly processes, an agitating device 2 it is provided with in described agitator tank 1, the upper end of agitator tank is connected with motor, lower end is supported on bearing block, the blade of a described agitating device 2 is horizontal by 35 55 ° of angles, the back side of blade is provided with reinforcement.Being provided with secondary stirring device 4 in described liquor box 3, described secondary stirring device 4 uses compressed air to be stirred, arranges 12-20 stir spot in described liquor box.This technical scheme installs Double stirring device, and to adapt to use low chlorine indissoluble inhibitor demand, stirring for the first time is located in agitator tank, stirs for mechanical type, two blade agitation solution of driven by motor when dosing.Shaft upper end is connected with motor, and lower end is supported on bearing block.Blade is horizontal by 35～55 ° of angles, and it is backed with reinforcement and supports.Second time stirring is located in liquor box, uses compressed air to be stirred, arranges 12～20 stir spots at liquor box, it is ensured that without stirring dead angle.Compressed air is (outlet pressure >=0.45MPa) after gas storage bag, transports to stir spot by φ 50～100mm pipeline, carries out winding-up stirring according to solution precipitation status, makes solution concentration uniform as far as possible, solves a liquor box sedimentation difficult problem.
Embodiment 2 :Seeing Fig. 1 Fig. 3, as a kind of improvement of the present utility model, described control assembly includes that electromagnetic valve 7, Pressure gauge 8 and effusion meter 9, described control assembly are arranged between force (forcing) pump 6 and spray assembly.Spraying flow uses effusion meter, frequency conversion chemical industry force (forcing) pump to control, and automatically controls sprinkling, to meet the demand of different flow according to setting flow.Remaining structure is identical with embodiment 1 with advantage.
Embodiment 3 :See Fig. 1 Fig. 4, as a kind of improvement of the present utility model, described spray assembly includes three spray points, i.e. first spray point the 10, second spray point 11 and the 3rd spray point 12, each spray point is provided with 1-3 shower nozzle 17, wherein more than 16mm grade sintering deposit, the second spray point correspondence 10-16mm grade sintering deposit, the 3rd spray point correspondence 5-10mm grade sintering deposit on the first spray point correspondence belt.After being discharged to the second spray point due to the ore deposit on belt, stream has a upset, and flushing liquor not only covers all grades in finished product ore deposit, and can be sprayed onto the big lump ore back side.The position of spray point is located at strap end region, to stay time enough to evaporate by moisture, it is to avoid steam blocking emptying point dedusting airduct.Require that sintering deposit chilling temperature, at 70～150 DEG C, to ensure that the solution energy rapid draing sprayed forms thin film, reduces later process equipment bonding moist powder chance simultaneously.Remaining structure is identical with embodiment 1 with advantage.
Embodiment 4 :Seeing Fig. 1 Fig. 3, as a kind of improvement of the present utility model, described spray assembly also includes that anti-splash device, described anti-splash device are arranged on the both sides of each spray point.Described anti-splash device includes support frame 15, and support frame arranges a separation trough at interval of 5～8cm, surveys at shower nozzle two, above belt operation, and installation activity dash cord 16.In order to reduce spray solution splash to empty belt, anti-splash device is installed, sees Fig. 2.Before and after spray point, making two frameworks across belt angle steel, framework arranges a separation trough at interval of 5～8cm.Survey at shower nozzle two, above belt operation, installation activity dash cord.Dash cord requires abrasion-proof corrosion-proof, resistance to 150 DEG C of high temperature and is difficult to sizing, therefore selects PPS acid and alkali-resistance filter bag in sack cleaner, after double-layer folding, is screwed between two band steels, and to facilitate dismounting, band steel is placed on framework.Change according to sintering deposit stream and spray angle, separation trough adjusts dash cord position.Owing to arranging dash cord, and it is relatively low to spray flow, and sintering deposit belt conveyor sizing amount is few, reduces and sheds breeze scavenging amount on the way, does not affect belt properly functioning.Remaining structure is identical with embodiment 1 with advantage.
Embodiment 5 :See Fig. 1 Fig. 4 to improve as one of the present utility model, connected by 90 ° of elbows above described shower nozzle.Spray and use adjustable atomizer, see Fig. 3.Owing to belt stream often has a segregation, and require to spray the most uniform.Therefore this utility model uses scalable atomizer to spray, and each capacity of sprinkler controls in 0.2～0.5t/h scope.After flushing liquor rotates along spiral high speed, spray from shower nozzle central outlet umbrella, have that atomizing effect is good, spray uniform feature.Shower nozzle bottom outlet uses threaded, rotatable backs out, convenient internal block clearing.In order to realize flexible shower nozzle direction, using 90 ° of elbows to connect in pipeline vertical direction, elbow upper limb is not screwed to the end under water-tight premise, makes the shower nozzle can be along belt lateral rotation, it is ensured that solution is sprayed in stream；Connecting with 90 ° of elbows in pipe level direction, make shower nozzle can rotate in vertical direction, the vertical dimension between regulation shower nozzle and belt, shower nozzle keeps 0.3～0.5m with belt vertical dimension.After using this utility model technology, prunus mume (sieb.) sieb.et zucc. steel sintering deposit RDI+3.15Index from spray before 58～62, rise to 70～80 levels, solve sintering deposit low-temperature reduction disintegration and can differ from a difficult problem.Remaining structure is identical with embodiment 1 with advantage.
Operation principle:Seeing Fig. 1 Fig. 4, the flusher technical process of this technical scheme is as follows:
Inhibitor powder is through being dissolved in water, and being diluted to concentration is 1.4～2.8% solution, through Double stirring, is stored in liquor box to be painted.Spray solution, after frequency conversion corrosion protection pump pressurizes, is delivered to three spray points, is sprayed onto finished product agglomerate surface by atomizer.Spray flow and sintering deposit RDI+3.15Index is directly proportional, and sprays flow-control in sintering deposit 2.5～4kg scope per ton.After flow set, feed back to frequency conversion force (forcing) pump and be automatically adjusted, keep spraying stability of flow.Spraying flow uses effusion meter, frequency conversion chemical industry force (forcing) pump to control, and automatically controls sprinkling, to meet the demand of different flow according to setting flow.Described spray assembly includes three spray points, i.e. first spray point the 10, second spray point 11 and the 3rd spray point 12, each spray point is provided with 1-3 shower nozzle 17, wherein more than 16mm grade sintering deposit on the first spray point correspondence belt, second spray point correspondence 10-16mm grade sintering deposit, the 3rd spray point correspondence 5-10mm grade sintering deposit.After being discharged to the second spray point due to the ore deposit on belt, stream has a upset, and flushing liquor not only covers all grades in finished product ore deposit, and can be sprayed onto the big lump ore back side.The position of spray point is located at strap end region, to stay time enough to evaporate by moisture, it is to avoid steam blocking emptying point dedusting airduct.Require that sintering deposit chilling temperature, at 70～150 DEG C, to ensure that the solution energy rapid draing sprayed forms thin film, reduces later process equipment bonding moist powder chance simultaneously.In order to reduce spray solution splash to empty belt, anti-splash device (see figure 2) is installed.Before and after spray point, making two frameworks across belt angle steel, framework arranges a separation trough at interval of 5～8cm.Survey at shower nozzle two, along belt direction of travel, installation activity dash cord.Dash cord requires abrasion-proof corrosion-proof, resistance to 150 DEG C of high temperature and is difficult to sizing, therefore selects PPS acid and alkali-resistance filter bag in sack cleaner, after double-layer folding, is screwed between two band steels, and to facilitate dismounting, band steel is placed on framework.Change according to sintering deposit stream and spray angle, separation trough adjusts dash cord position.Owing to arranging dash cord, and it is relatively low to spray flow, and sintering deposit belt conveyor sizing amount is few, reduces and sheds breeze scavenging amount on the way, does not affect belt properly functioning.After using this utility model technology, prunus mume (sieb.) sieb.et zucc. steel sintering deposit RDI+3.15Index from spray before 58～62, rise to 70～80 levels, solve sintering deposit low-temperature reduction disintegration and can differ from a difficult problem.
At least one in technical characteristic described in embodiment 2,3,4,5 and embodiment 1 can also be combined and form new embodiment by this utility model.
It should be noted that above-described embodiment is only preferred embodiment of the present utility model, it is not used for limiting protection domain of the present utility model, the equivalent made on the basis of technique scheme or replacement, belongs to protection domain of the present utility model.
Claims (8)
1. an iron agglomerate reduction degradation inhibitor flusher, it is characterized in that, described flusher includes agitator tank, liquor box, compressed air gas storage bag, force (forcing) pump, control assembly and spray assembly, described liquor box is arranged between agitator tank and force (forcing) pump, described compressed air gas storage bag is connected with liquor box, inhibitor is delivered to spray assembly after agitator tank, liquor box, force (forcing) pump, is delivered to blast furnace process after spray assembly processes.
Iron agglomerate reduction degradation inhibitor flusher the most according to claim 1, it is characterized in that, an agitating device it is provided with in described agitator tank, the upper end of agitator tank is connected with motor, lower end is supported on bearing block, the blade of a described agitating device is provided with reinforcement horizontal by 35 55 ° of angles, the back side of blade.
Iron agglomerate reduction degradation inhibitor flusher the most according to claim 2, it is characterized in that, being provided with secondary stirring device in described liquor box, described secondary stirring device uses compressed air to be stirred, and arranges 12-20 stir spot in described liquor box.
Iron agglomerate reduction degradation inhibitor flusher the most according to claim 3, it is characterised in that described control assembly includes that electromagnetic valve, Pressure gauge and effusion meter, described control assembly are arranged between force (forcing) pump and spray assembly.
Iron agglomerate reduction degradation inhibitor flusher the most according to claim 4, it is characterized in that, described spray assembly includes three spray points, i.e. first spray point, the second spray point and the 3rd spray point, each spray point is provided with 1-3 shower nozzle, wherein more than 16mm grade sintering deposit, the second spray point correspondence 10-16mm grade sintering deposit, the 3rd spray point correspondence 5-10mm grade sintering deposit on the first spray point correspondence belt.
Iron agglomerate reduction degradation inhibitor flusher the most according to claim 5, it is characterised in that described spray assembly also includes that anti-splash device, described anti-splash device are arranged on the both sides of each spray point.
Iron agglomerate reduction degradation inhibitor flusher the most according to claim 6, it is characterised in that described anti-splash device includes support frame, support frame arranges a separation trough at interval of 5～8cm, survey at shower nozzle two, along belt direction of travel, installation activity dash cord.
8. according to the iron agglomerate reduction degradation inhibitor flusher described in claim 6 or 6, it is characterised in that connected by 90 ° of elbows above described shower nozzle, shower nozzle direction scalable.
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