CN1044274A - The device of the working method of liquid fertilizer and similar slurry material and this method of enforcement - Google Patents

Abstract

The present invention relates to process liquid fertilizer and similarly contain organism and the method for the slurry of nitrogen chemical material composition.This method make this pulp separation become nitrogenous liquid object mutually with nitrogenous dry mutually.Two kinds of things all are aseptic mutually, and liquid phase can be evaporated, and the water that is reclaimed in the evaporative process can be used for raising the water purpose, and enriched material can mix mutually with solids, as fertilizer.The invention still further relates to a kind of device of implementing present method with separator box (3).

Present method and device can be processed liquid fertilizer and similar material in the mode of cheapness, and they are transformed into the material that can use and use in envrionment conditions is subjected to the zone of strict restriction.

Description

The device of the working method of liquid fertilizer and similar slurry material and this method of enforcement

The present invention is a kind of novel method, is used for processing liquid fertilizer and analogue thereof, mainly is organic slurry material and is used for reclaiming and contains a large amount dry material and pile up absence of liquid is oozed out under the storage material and aseptic liquid phase material adding a cover the back.The invention still further relates to the device of implementing this method.

Constantly more strict environment need produce requirement for people are used for adding industrial and agricultural waste under financial feasible condition novel method, so that use and transform these refuses and safeguard environmental legislation simultaneously.Extra-urgent problem is the animal residue that processing is liquid fertilizer and analogous material shape, and disposing and transform these refuses is when last big problem.

Therefore, the objective of the invention is to propose for example method of liquid fertilizer of paste-like material that a kind of processing contains large amount of organic, this method produces one or more materials that can be stored and/or use with minimum cost and still can safeguard environmental legislation simultaneously.The present invention also provides the device of this method of enforcement.

Just can reach this purpose according to the present invention with these class methods that propose in the preface.The feature of this method is the acidity that people can adjust the paste-like material, make be heated to 100 ℃ near the time (in some cases up to 110 ℃) do not emit gaseous ammonia, and when the paste-like material is heated at least 75 ℃, this material will be made into aseptic and be separated into the clear liquid slurry layer of absence of liquid mutually and relatively, separate this two slurry layers subsequently, so can handle respectively to them.According to the present invention, the feature of implementing this method equipment therefor suitably is that it comprises a slurry separator box, and one or more slurry inlets are arranged on the top of this case, has a level of slurry controlling elements to make the interior slurry of case remain on a constant level substantially.At lower box liquid discharge outlet is arranged, the hot face of packing under the slurry normal level of liquid in case, also have one get rid of element can collect from the slurry surface district contain dry material slurry mutually and make it to discharge from casing.

According to method of the present invention, its advantage is that liquid fertilizer can be separated into two kinds of products, and these two kinds of products can be used separately under financial feasible condition and in the scope of environmental legislation regulation.The dry phase volume is far smaller than liquid fertilizer, can add a cover it storage and not ooze out any liquid that is harmful to environment simply, can be transported to other place and unlikely health risk, and machine takes the field as fertilizer sources in due course.Also have, this liquid phase is aseptic, as dry can be sent to other places mutually health is safe from danger, and liquid phase can be drawn out of and spray and not have any technical problem.Owing to adjusted the acidity of material, there is not ammonia to escape in the atmosphere between the usage period in storage and farmland, when therefore using in the farmland, the ammonia content of charging to manurial value almost is the whole of original vol.Simultaneously, thus the change of the caused material smell of controlling acidity aspect descends its nature and extent that makes us uncomfortable greatly.At last, liquid phase is suitable for evaporation and produces water for livestock industry usefulness, and evaporate dry can mix mutually and the same utilization with the dry that reclaims by separation circuit mutually.

Preferred embodiment according to the inventive method is listed in the claim 2 to 4.

Utilize microbial culture to form acid and come controlling acidity to replace the mode of adding acid, its advantage mainly is to save the expense of buying acid.On the other hand, directly add sulfuric acid and obtained the highest result.Practice confirms that for fear of insupportable ammonia evaporation, the pH value of slurry (liquid fertilizer) must not be greater than 7.On the other hand, cross low then processing units as pH value and etching problem will occur.Acidity has shown very about about 6 greatly in practice to be share, and when particularly promoting that with biology formation acid interrelates, just can reach this pH value in the suitably short time.Heating reaches 75 ℃ and top temperature is 110 ℃ at least, processed material is enough sterilized effectively and need not autoclaving, and the temperature about 90 ℃ has proved and can cause quick sterilization simultaneously and correspondingly soon liquid fertilizer is separated into two-phase.

According to device of the present invention is favourable, because it is simple in structure, is applicable to and does reliable and operation continuously under the regular guard condition.Have the processing vessel of giving liquid fertilizer is carried out a biological disposal upon, can remove the working cost of purchasing acid from.The element that can exclude dry material from the slurry separator box can make this material liquid phase of draining simultaneously, therefore just can omit and independently put treatment process in order discharging a liquid phase conduct, thereby be appropriate.The contriver has confirmed the structure operating safety that claim 7 is described and does not have running and end phenomenon during experimentizing.Launch equably in slurry surface if introduce the slurry material of slurry separator box, proved that liquid fertilizer can be separated into two-phase and not have any problem.Having superiority in the described embodiment by apparatus of the present invention of claim 10 is because its compact construction, causes thermal losses quite little, and owing to only has seldom web member need finish in the assembling place with tube stub to be connected, to make assembly fee low as far as possible.

If also comprise the liquid evaporation unit according to device of the present invention, people can obtain such benefit so, and promptly most of water is recyclable in the liquid phase, and what can be used for livestock industry raises the water purpose, therefore just can be in agricultural recirculation in service.Along with the evaporation of liquid phase, the disposal of refuse reduces to and includes only a kind of material, and therefore a kind of manurial value height and the more limited sterilizable material of volume ratio are compared with unprocessed liquid fertilizer, and the transportation of being more convenient for can have sure coml to be worth.

With reference to the accompanying drawings the preferred embodiment of apparatus of the present invention is described in detail and further specified the present invention, wherein

Fig. 1 is the longitudinal diagram of apparatus of the present invention, illustrates according to the processing situation of the inventive method liquid fertilizer,

Fig. 2 is the longitudinal diagram that is used for the separator box that liquid fertilizer is separated by the present invention,

Fig. 3 is the longitudinal diagram along Fig. 2 III-the III line is analysed and observe.

Liquid fertilizer processing unit (plant) according to Fig. 1 comprises: first liquid fertilizer container 1, give processing vessel 2, liquid fertilizer separator box 3, can fertilizer 4, evaporation element 5, water tank 6 and second liquid fertilizer retention tank 22.First liquid fertilizer container 1 has first liquid fertilizer pipe 7, wherein inserts first fertilizer pump 8, connects to give processing vessel 2.First fertilizer pump 8 is subjected to first float switch 28 controls, and this switch is installed in and gives in the processing vessel 2, is to be used for making the liquid fertilizer that gives in the processing vessel 2 to remain on constant level.Also have a hot face 18 described give in the processing vessel, be used for self-separation case 3 the heating of liquid phase fertilizer it.The temperature switch 30 that gives the temperature utilization control T-valve 29 in the processing vessel makes it the constant adjustable temps that remains on.Give individual mechanical stirrer 19 is arranged in the processing vessel 2, can liquid fertilizer wherein slowly be stirred.At last, container 9 of equipment has acid guiding tube to introduce in the container 2 downwards in 9 above container 2.Second liquid fertilizer pipe 10 of attached second fertilizer pump 11 imports above spaces, liquid fertilizer surface in the separator boxs 3 by giving processing vessel 2, and second liquid fertilizer pipe 10 trails and become a liquid fertilizer and spray element and liquid fertilizer can be distributed to the liquid fertilizer surface.Dry substance of equipment is got rid of 13,14, one liquid fertilizer tank level control elements of element at the top of separator box, a liquid phase region, a hot face 15 and the 3rd liquid fertilizer pipe 16, and at top second float switch of equipment in order to control second fertilizer pump 11.Separator box 3 is described in detail in detail below.Insert the 3rd fertilizer pump 17 in the 3rd liquid fertilizer pipe 16, alternately import the hot face 18 that gives in the processing vessel 2 or import T-valve 29 via arm.The 3rd pump 17 preferably can be with the displacement pump of constant and adjustable pump speed work.The eliminating element 13,14 of dry material phase leads to can fertilizer 4, and can fertilizer 4 is that the form with transport container is placed in below the sealing cover 31.The lower edge design of lid has contact surface to assemble with the upper edge of container tanks 4.Pipeline 27 perforate below lid 31, extraction mouth in pump 26 is linked evaporation element 5, the evaporation boiler that evaporation element 5 is preferably such, its hot face reaches the liquid topmost, and the steam vault arranged above fluid surface, the steam pipeline of band compressor imports steam the condenser be contained in below the hot face from the steam vault, like this during vapour condensation with thermal radiation to bottom section.

The condenser of self-evaporatint n. unit 5 is drawn water pipe 32 and is linked water tank 6 through second liquid fertilizer container 22, in second liquid fertilizer container 22, is water pipe 32 installing heat-exchanger surfaces 34.The 4th liquid fertilizer pipe 21 linked second liquid fertilizer container 22 from T-valve 29, comes out to link evaporation element 5 and the 5th liquid fertilizer pipe 23 has the 4th fertilizer pump 33 by container 22.At last, in the 4th liquid fertilizer pipe 21 between T-valve 29 and second liquid fertilizer container 22, insert second T-valve 35, and the 7th liquid fertilizer pipe 36 linked the 3rd the liquid fertilizer container 37 from T-valve 35.For the purpose of clear, sectional view 1-3 does not have the thermal insulation layer of display pipes and container.

According to processing units shown in Figure 1 is to process liquid fertilizer with following the inventive method.

First liquid fertilizer container 1 is arranged to actually and can holds several days production materials to an about week, and liquid fertilizer is pumped to through first liquid fertilizer pipe 7 by container 1 by pump 8 and gives in the processing vessel 2.The suction amount is given float switch 28 controls in the processing vessel 2.Give 2 of processing vessels and be arranged to the method that the mat microorganism culturing forms acid and come regulator solution adipic acid degree, so its minimum size depends on selected service temperature.For example, be 20～25 ℃ as temperature, give processing vessel so and must hold average production liquid fertilizer and reach 24 hours at least, thereby make liquid fertilizer this section in container that acid is fully generated.It is mean time that liquid fertilizer is stayed the time of giving in the processing vessel, during this period, constantly uses the contents of agitator 11 stirred vessels, so that make the smooth production process of acid even.Then temperature is constant and even to reach best effect, utilize adjustable temperature switch 28 that temperature is remained on the desired level, this just need control T-valve 29 in some way, promptly when the liquid fertilizer temperature of giving processing vessel 2 descends, T-valve 29 will be transformed into a kind of like this position, make from the liquid of separator box 3 by giving the heat exchanger in the processing vessel 2, again from here to second liquid fertilizer container 22, so hot face 18 is to the liquid fertilizer radiant heat.And when temperature surpasses institute and requires level, will rotate T-valve and make and walk around preprocessor 2 from the liquid of separator box 3 and directly enter second liquid fertilizer container 22.The 3rd fertilizer pump 17 with liquid fertilizer self-separation case 3 via pipeline 16 and 21 with second liquid fertilizer container 22 of constant speed suction, with the location independent of T-valve 29.This speed was adjusted according to the liquid fertilizer level in first container 1 during the observation in every day.If microorganism relieving haperacidity goes wrong, as an alternative, for example the sulfuric acid that adds in the sour container 9 is added the acidity of giving liquid fertilizer in the processing vessel 2 with adjustment.

The acidity of adjusting liquid fertilizer is to maximum value PH=7, and the most favourable is about PH=6, then liquid fertilizer from giving processing vessel 2 via second fertilizer pump 11, be extracted in the separator box 3 by second liquid fertilizer pipe 10, these will discuss in more detail below.Through after being separated, get rid of element 13,14 and discharge separator boxs 3 by its dry dry that communicated in separator box 3 for liquid fertilizer, and this dry is got rid of element and excessive liquid phase in the ejected matter removed then it is delivered in the dry container 4.The fertilizer that is discharged from since in separator box 3 through Overheating Treatment, therefore be aseptic.Even therefore forward other place to from the production site, also without any the danger of polluting as commercial fertilizer.As previously mentioned, isolated liquid phase is to discharge from separator box 3 by the 3rd liquid fertilizer pipe 16, imports second liquid fertilizer container 22 then.

Liquid fertilizer in second liquid fertilizer container 22, the water that is condensed is flow in the way of water tank 6 by vaporizer 5, flows through heat-exchanger surface 34 and is heated to and/or remains in high temperature.

In separator box 3 through thermal treatment and aseptic liquid fertilizer is extracted into evaporation element 5 via the 4th pump 33 by the 5th liquid fertilizer pipe 23 from second liquid fertilizer container 22, it is evaporated to that to contain the dry amount be about 30% or many slightly in 5, so that make the concentrated solution physical efficiency by the 5th fertilizer pump 26, by six roots of sensation liquid fertilizer pipe 27 branches be pumped in the can fertilizer 4, the there combine with the dry material of liquid fertilizer.Evaporation element 5 is the foregoing type of the application preferably, so locate not for a more detailed description.In vaporizer after the evaporation again the water of condensation be directed at water tank 6 by water pipe 32, can extract out by this water tank when needing and use.The inventor carries out during the test operation, and it is quite satisfied that verified its water quality is used to raise the water purpose, so just can be recycled in that agricultural is in service.

Owing to consider the present invention to be explained Fig. 1 has shown a T-valve 35, through the valve liquid fertilizer can be from the 3rd liquid fertilizer box 37 of the 7th liquid fertilizer pipe 36 importings thus.From this retention tank, can collect the sterile liquid as fertilizer sources and be sprayed on the farmland.This possibility can be understood like this, when promptly in fact building a factory, maybe can evaporate liquid fertilizer usually or can directly spray sterile liquid, yet also can consider all investing aspect these two possibilities in same factory.

Because the adjusted acidity of liquid fertilizer before further processing, so the dry of liquid fertilizer phase or liquid phase are not emitted the ammonia of effectual amount in each step of the course of processing, therefore, the fertilizer of producing contains the whole ammonia amounts in the starting raw material, does not also have the tendency that discharges ammonia in storage and sprinkling process.This and well-known liquid fertilizer store and spray application completely different, technology in the past normally causes losing ammonia about 30% or more some more.In addition, because the evaporation of the height of water, the fertilizer of production is spissated form, can sustain the trucking costs relevant with taking farmland, a distant place to preferably.

Yet, needn't constitute as described above according to method of the present invention.If the liquid fertilizer producer can use enough tract, oneself has the equipment of handling this sterile liquid again, second liquid fertilizer container 22 just can do more and also can omit vaporizer 5 a bit so, and this is to be applied directly on the soil owing to the sterile liquid of producing can be used as fertilizer.Make a much smaller preprocessor 2 and also be possible only by adding the method that acid comes regulator solution adipic acid degree.We also may be by every means arrange liquid fertilizer processing with advantageous manner under situation separately.Unique deciding factor is each step of that method of utilizing in the claim 1 to be narrated.

Fig. 2 and Fig. 3 have shown the scheme of erection of slurry separator box 3, and separator box 3 is to carry out equipment according to method of the present invention with advantageous manner.

Separator box 3 has container parts 101 and cover part 102, and the appended downward flange surface 103 of lid is placed on the flange surface that makes progress 104 of container 101.Be provided with the hot face 106 by the thermal source heating near the container bottom, the thermal source here illustrates with an oil burner 107.Hot face 106 tops are equipped with heat exchanger 108, illustrate with spiral tube herein.Heat exchanger is the integral part of second liquid fertilizer pipe 10, injects second fertilizer pump 11 in this pipe 10.Above heat exchanger 108, and be the topmost of container parts 101, settle sieve 109 at level attitude basically, its cross section almost is half garden.These sieves extend between the inwalls relative in the container parts 101, and removably are positioned at (not shown) on the carriage on container parts 101 walls.Individual conveying screw rod 110 is arranged in each sieve 109, each conveying screw rod has two worm screws, one at every end, the hand of spiral of these two worm screws is opposite, therefore can be during towards a direction rotation when worm screw with the material that is transferred pushed to screw rod 110, and screw rod 110 can be with the end release to screw rod 110 of the material that is transferred when rotating to another way.Each conveying screw rod 110 is removably to be located in the wall of container that supports corresponding sieve 109 or on the wall of container, because an end of screw rod 110 is positioned at container parts 101 inside, and the wall that the other end of screw rod 110 extends through container parts 101 is in succession on a gear motor that drives at a slow speed, and this motor can drive whole conveying screw rods 110 jointly or drive each screw rod separately.Between two sieves 109, and the float of a float switch 111 is arranged on the adjustable height of sieve 109 bottom levels, this float and corresponding fly rod cover with dull and stereotyped (not shown), and this flat board can be the part of an adjacent sieve 109.Since the consideration of maintenance, float switch 111 supported being placed in the cover part 102.The mode of operation of second fertilizer pump 11 of float switch 111 control is: pump was switched on when liquid levels descended in the case 3, and when liquid level rose to desired height in the case 3, float switch 111 cut out pump.Dry is installed above sieve 109 and conveying screw rod 110 is got rid of element 14, it is inclined upwardly with respect to the lateral extent of screw rod 110 and at throughput direction, has so just formed conveying screw rod 112.The material inlet district of highest point in cover part 102, this screw rod by one be substantially half garden tubular 115 on cover around, when it stretches out the screw conveyor cover 113 that lid just forms the garden tubular later on, a screen casing 114 is set in 113 inside, this screen casing 114 is around conveying screw rod 112, and the screen casing external diameter is less than the internal diameter of cover 113.Conveying screw rod 112 unillustrated ends are installed with the form that can rotate arbitrarily, and at that end towards cover part 102, its axle bed drops in these parts and stretches out cap walls and is connected on the external low-gear motor 116, and this motor drives conveying screw rod 112.Pipe 117 is imported the top of cover part 102 by heating surface 108, become several liquid fertilizers in this branch and spray element 118, illustrate with sprinker, but they itself are well-known assemblies herein, the paste-like liquid fertilizer can be spread across on the surface of case 3 contents equably.At last, distance is provided with a hot transmission device sensing member 119 nearby below the sieve 109 in container parts 101, and its temperature can be regulated the also heat supply of 107 pairs of hot faces 106 of may command thermal source.

Separator box 3 is as described below to carry out work:

Start second fertilizer pump 11 and will give the liquid fertilizer suction separator box of handling 3, liquid fertilizer is sprayed onto the top of sieve 109 by sprinkling element 118.The liquid phase infiltrate sieve 109 of fertilizer, the solid that wherein has enough granular sizes is then stayed on the sieve.Start conveying screw rod 110 and 112 case 3 is full of,, just can trigger thermal source 107 so that begin to heat liquid fertilizer when the liquid fertilizer surface reaches hot face 106 when above.When the liquid levels in the container parts 101 are raised to the level of adjustable float switch 111, float switch 111 just control pump 11 so that maintain this liquid level at further run duration.Be heated to 75 ℃ or higher with giving the liquid fertilizer of handling, then liquid fertilizer has passed through sterilising treatment, and reaction has taken place simultaneously made the liquid fertilizer material separation, form almost be clearly liquid phase with contain dry mutually, liquid phase will be oozed to case 3 bottoms, contains dry and then attempts mutually to move up and partly be extruded to pass through sieve.Meanwhile mean by heat exchanger 108 heating liquid fertilizer feed, make feed is in heat by dispersion and almost reach under the situation that is separated completely in container parts 101 internal heating liquid phases.After run duration reached normal working temperature, situation then was like this, because fine grain dry part is to rising, the filteration of sieve 109 is very fine, and because the heat effect of giving of heat exchanger 108 makes the liquid fertilizer that is spilled into through being separated, so filtering efficient height.Dry eliminating element with screw conveyor 110 and 112 forms is discharged the dry that sieve 109 sifts out mutually, be that screw rod 110 laterally pushes this material in heaps in cover part 102 below the conveying screw rod 112, and get rid of the dry heap by conveying screw rod 112, during eliminating in acclivitous conveying dry heap pushed slightly, make the liquid phase of following discharge and ooze out and turn back in the case 3 by cover 113 by screen casing 114.Isolated liquid phase is got rid of with the constant speed of setting through the 3rd liquid fertilizer pipe 16 by the 3rd fertilizer pump 17 in the fertilizer, manages 16 and is connected with container outlet 105.

More than about the description by apparatus of the present invention favourable embodiment only has been described. Also can realize with other different ways according to method of the present invention, for example, dry is got rid of element and the liquid phase of eliminating material is drained also inessential, this discharge opeing process is also practicable outside separator box, slurry can be after warm to entering separator box 3, or availablely be different from described mode and heat, also having, feed also needn't utilize the method for described sprinkling liquid fertilizer material to realize. This method be applicable to shown in dry get rid of mutually element and combine, the experience that from these experiments, obtains of inventor only. The control of liquid level and temperature also available other modes realizes, for example can heat as thermal source with hot water facility or steam boiler. Those skilled in the art can detectable all improvement of conforming to the actual situation all within the claim limited range of patent of the present invention.

Claims (11)

1, a kind of process liquid fertilizer and mainly be the method and reclaim of the liquid fertilizer analogue of organic slurry material contain a large amount dry material and add a cover the back pile up store under the method for the material that oozes out of absence of liquid and aseptic liquid phase material.It is characterized in that regulating the acidity of slurry material, so that this material is not emitted the insupportable ammonia amount of environment that makes when being heated to 100 ℃ of left and right sides, the paste-like material is heated to 75 ℃ at least so that become aseptic and be separated into the clear liquid slurry layer of aneroid mutually and relatively, at last two kinds of slurry are separated out, thereby can be used respectively.

2,, it is characterized in that adding sulfuric acid or regulate slurry acidity with the bioremediation of microorganism culturing relieving haperacidity according to the method for claim 1.

3,, it is characterized in that the acidity adjustment to 7 of processed slurry＞PH＞3, best PH approximates 6 greatly according to the method for claim 1 or 2.

4, according to the method for claim 1,2 or 3, it is characterized in that slurry is heated to 75～110 ℃, the best is about 90 ℃.

5, according to the method for above arbitrary claim, it is characterized in that the dry material part of slurry is got rid of from processing continuously, also extruding is so that drain liquid a little by mechanical treatment in exclusion process, and liquid is led again gets back to processing place.

6, implement the used device of method of claim 1-5, it is characterized in that it comprises a slurry separator box (3), this upper box part has one or more slurry inlets (118), having a level of slurry controlling elements (111) makes the slurry in the case (3) remain on a constant level substantially, in the bottom of case (3) individual liquid discharge outlet (105) is arranged, in case (3), under the normal slurry horizontal plane hot face (106) is housed, get rid of element (13 in addition, 14,110,112) be used for from the dry phase of slurry surface district collection slurry.

7,, it is characterized in that comprising that a processing vessel of preparing in a well-known manner (2) that gives becomes the acidic process slurry with microorganism culturing according to the device of claim 6.In giving processing vessel (2), the slurry outlet is housed also, has slurry pipe (10) or slurry handling machinery to be connected to slurry separator box (3) from this outlet.

8, according to the device of claim 6 or 7, it is characterized in that: eliminating element (13,14) is housed in the slurry separator box (3) dry is got rid of under light pressure, make the liquid phase of slurry discharge and turn back to slurry separator box (3).Get rid of element (13,14) and preferably include one or more parallel screw conveyors (110), these screw conveyors individually are installed in the sieve (109) of elongation.Sieve is installed at level attitude basically, and its bottom is positioned near the slurry surface, and the slurry surface height is determined by tank level control element (111).Screw conveyor (112) has an opening for feed, and just horizontal screw bolt (110) transports the position that the slurry dry is come mutually in slurry separator box (3).Screw conveyor (112) is inclined upwardly by opening for feed and extends into a two sleeve pipe, and pipe (114) has many draining holes in two telescopic.

9, according to the device of claim 6-8, it is characterized in that spraying elements (118) as to the porthole of slurry separator box (3) feed with one or more slurry, settling this element is in order substantially equably the slurry feed to be dispersed in the top of the whole slurry surface of separator box (3).

10, according to any one device of claim 6-9, it is characterized in that it comprises slurry feeder sleeve (10), have heat-exchanger surface at slurry separator box (3) by the following feeder sleeve of liquid level (10) that level of slurry controlling elements (111) is determined, pipe (10) is delivered to one or more feeding ports (118) to slurry forward.Heat-exchanger surface (108) preferably has certain size so that the feed slurry is heated at least about 60 ℃, preferably is heated at least 75 ℃.

11, according to each device of claim 6-10, it is characterized in that comprising a liquid evaporation unit (5), the liquid discharge outlet of it and slurry separator box (3) joins, it is arranged to evaporate the slurry liquid phase to the resistates that obtains containing the high-content dry so that make dry that this resistates can be added into slurry mutually in and be further processed therewith.Evaporation boiler (5) comprises a heating surface and steam vault, and heating surface is on the top of the fluid zone of boiler, and steam is by in the condenser under the steam vault importing heating surface.

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