CN202164118U - Reduction-oxidation furnace for hot-method phosphorus smelting - Google Patents
Reduction-oxidation furnace for hot-method phosphorus smelting Download PDFInfo
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- CN202164118U CN202164118U CN2011202389887U CN201120238988U CN202164118U CN 202164118 U CN202164118 U CN 202164118U CN 2011202389887 U CN2011202389887 U CN 2011202389887U CN 201120238988 U CN201120238988 U CN 201120238988U CN 202164118 U CN202164118 U CN 202164118U
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Abstract
A reduction-oxidation furnace for hot-method phosphorus smelting comprises a furnace body, a top-blowing spray gun and a side-blowing spray gun, wherein the furnace body is provided with a melt inlet used for feeding fused phosphate ore melt into the furnace, a smoke outlet arranged at the top of the furnace body, a slag hole and a phosphorus iron outlet arranged below the slag hole; the lower end of the top-blowing spray gun is movably inserted into the furnace body from the top of the furnace body along the vertical direction, and is always positioned above the liquid surface in the furnace body; and the lower end of the side-blowing spray gun tilts from the side surface of the furnace body, is movably inserted into the furnace body and is positioned below the liquid surface in the furnace body. According to the reduction-oxidation furnace for hot-method phosphorus smelting, the side-blowing spray gun is movably inserted into the furnace body, thus being very convenient to replace and maintain; and the inserted depth of the side-blowing spray gun can be adjusted in time according to the liquid surface height in the furnace body, and the phosphorus smelting effect can be improved.
Description
Technical field
The utility model belongs to field of metallurgical equipment, especially relates to a kind of reduction oxidation furnace of refining phosphorus by hot method.
Background technology
Utilize the method for Rock Phosphate (72Min BPL) refining phosphorus to mainly contain wet method and two types of Re Fa (like electric furnace process, kiln method etc.), wet method is to react with Rock Phosphate (72Min BPL) and mineral acid (mainly being sulfuric acid), behind separation of phosphogypsum and impurity, processes raw phosphoric acid; Hot method is earlier Rock Phosphate (72Min BPL) to be added thermal reduction to obtain gaseous elemental phosphorus, obtains phosphoric acid through oxidation, hydration again.
Wet method has the characteristics of less energy-consumption, but exists the phosphoric acid purity that obtains not enough, needs the defective of further purifying; And adopt hot method, and like electric furnace process, there is the problem that the ore fusion is difficult, power consumption is big, and high to the requirement of Rock Phosphate (72Min BPL) grade, can't handle for lean ore; For the kiln method, then there is the shortcoming of slow, the easy ring formation of speed of response, cause plant factor low, be difficult to accomplish scale production.In addition, in the traditional hot method, the gaseous state Vanadium Pentoxide in FLAKES after the oxidation is mixed in the flue gas, and therefore the complicated component of flue gas isolates the Vanadium Pentoxide in FLAKES difficulty from flue gas, purity drop, cost height.
One Chinese patent application CN101172589A discloses a kind of method of direct production of phosphorus pentoxide with phosphorus ore, has wherein adopted the smelting furnace with last spray gun and side spray gun.But the last spray gun and the side spray gun of this smelting furnace adopt the air cooling mode usually, and the life-span of spray gun is short, and the side spray gun is generally fixed, control difficulty, replacing complicated operation.
The utility model content
The utility model is intended to one of solve the problems of the technologies described above at least.For this reason, a purpose of the utility model is to propose a kind of reduction oxidation furnace of refining phosphorus by hot method, and the top-blown spray gun of this reduction oxidation furnace and the life-span of side-blown spray gun are long, and the operation of side-blown spray gun and control are simple.
Reduction oxidation furnace according to the refining phosphorus by hot method of the utility model; Comprise: body of heater, said body of heater have and are used for fused Rock Phosphate (72Min BPL) melt is joined the intravital melt inlet of said stove, the exhanst gas outlet that is positioned at said body of heater top, slag notch and is positioned at the ferrophosphorus outlet below the said slag notch; Top-blown spray gun, the lower end of said top-blown spray gun are inserted in the said body of heater along the vertical direction movably from the top of said body of heater and are positioned at the intravital liquid level of said stove top all the time; And side-blown spray gun, the lower end of said side-blown spray gun is from the laterally inclined of said body of heater and be inserted in the body of heater movably and be positioned at the intravital liquid level of said stove below.
Reduction oxidation furnace according to the refining phosphorus by hot method of the utility model; Side-blown spray gun tilts and is inserted in the body of heater movably; Therefore the replacing of side-blown spray gun and safeguard very conveniently and can in time be adjusted the depth of penetration of side-blown spray gun according to the intravital liquid level of stove, improves refining phosphorus effect.
In addition, the reduction oxidation furnace according to the refining phosphorus by hot method of the utility model the foregoing description can also have following additional technical characterictic:
Side-blown spray gun on the said body of heater inserts mouth and is higher than the intravital liquid level of said stove.
Said side-blown spray gun and said top-blown spray gun are the water-cooled spray gun.
Cooling water inlet and cooling water outlet that said side-blown spray gun and top-blown spray gun are sleeve type structure and are respectively equipped with the cooling channel and are communicated with said cooling channel.
Also comprise according to the reduction oxidation furnace of the refining phosphorus by hot method of the utility model being used to drive the drive unit that said side-blown spray gun moves, said drive unit links to each other with the upper end of said side-blown spray gun.
Said drive unit comprises motor, by said motor-driven speed reduction unit and the windlass that drives by said speed reduction unit, the wireline of wherein said windlass links to each other with the upper end of said side-blown spray gun.
Said slag notch comprises slag notch and the following slag notch that is positioned at below the slag notch, and the position of wherein said time slag notch is lower than said side-blown spray gun and is inserted into the intravital end of said stove.
Said melt inlet is positioned under the intravital liquid level of stove.
Said side-blown spray gun comprises: intervalve, said intervalve are used in the body of heater of reduction oxidation furnace, feeding coal dust; Oxygen hose, said oxygen hose are set in said intervalve outside between said oxygen hose and said intervalve, to limit oxygen channel; The extension pipe; The outer wall of first end of said extension pipe is provided with return portion; Said return portion is extended between said extension pipe and said return portion, to limit the ring groove that the sealing of first end and second end open wide towards second end of said extension pipe, and second end of said extension pipe links to each other with first end of said oxygen hose; First end that first water pipe, said first water pipe sleeve are located at said oxygen hose outside and said first water pipe links to each other with second end of said return portion between said first water pipe and said oxygen hose and said extension pipe, to limit annular cooling channel; Second water pipe; Said second water pipe is located in the said annular cooling channel so that said annular cooling channel branch is circularized water entry and annular water exit, has the gap that said annular water entry and said annular water exit are communicated with between first end of said second water pipe and first end face of said ring groove.
Reduction oxidation furnace according to the utility model; Its side-blown spray gun makes water coolant carry out water-cooled to it through being provided with annular cooling channel, thereby makes slagging scorification easily on side-blown spray gun, because slagging scorification can play a protective role to side-blown spray gun; Therefore can prolong the life-span of side-blown spray gun, reduce cost.
Said intervalve comprises: pipeline section in the middle of first limits the first oxygen path between the said first middle pipeline section and the said oxygen hose; Pipeline section in the middle of second, in the middle of said second pipeline section link to each other with second end of pipeline section in the middle of said first and said second in the middle of limit the second oxygen path between pipeline section and the said oxygen hose; Wherein said first oxygen path and the said second oxygen path are common to constitute said oxygen channel, and the radial dimension of the said first oxygen path is less than the radial dimension of the said second oxygen path.
Thus, when the oxygen with certain speed entered in the first oxygen path through the second oxygen path, speed can increase and be injected to the body of heater inside of reduction oxidation furnace.
On the said whole length that is formed on pipeline section in the middle of said first in the middle of first on the periphery wall of pipeline section and at isolated many grooves that make progress in week, so that oxygen can be injected in the body of heater of reduction oxidation furnace through groove further.
Said many grooves extend along the axial straight line of the said intervalve of circumferential uniform distribution and edge of said intervalve.
The periphery transition fit of pipeline section is so that the inner peripheral surface of said extension pipe seals said many grooves in the middle of the inner peripheral surface of said extension pipe and said first.
Like this, when in oxygen enters into oxygen hose, also flowing in the extension pipe that is connected oxygen hose first end, oxygen sprays with the dispersive mode through groove, thereby has further improved the jeting effect of oxygen.
Alternatively, the inner peripheral surface of the periphery of the periphery of said return portion and said first water pipe and said return portion is concordant on the axial direction due of said first water pipe with the inner peripheral surface of said first water pipe.
The periphery of said extension pipe is concordant on the axial direction due of said oxygen hose with the inner peripheral surface of said oxygen hose with the inner peripheral surface of the periphery of said oxygen hose and said extension pipe.
Said extension pipe and said return portion are integrally formed.
The length of said extension pipe is greater than the length of the said first middle pipeline section.
Said annular water exit is between said second water pipe and the said return portion and first water pipe.At this moment, annular water entry is limiting between second water pipe and oxygen hose and the extension pipe, and promptly the part near the annular cooling channel of oxygen hose is annular water entry, so that can carry out water-cooled to spray gun better.
Additional aspect of the utility model and advantage part in the following description provide, and part will become obviously from the following description, or recognize through the practice of the utility model.
Description of drawings
Above-mentioned and/or additional aspect of the utility model and advantage obviously with are easily understood becoming the description of embodiment from combining figs, wherein:
Fig. 1 is the synoptic diagram according to the reduction oxidation furnace of the refining phosphorus by hot method of the utility model;
Fig. 2 is the sectional view along the line A-A among Fig. 1;
Fig. 3 is the synoptic diagram according to the side-blown spray gun of the reduction oxidation furnace of the utility model embodiment;
Fig. 4 is the cutaway view Amplified image of the side-blown spray gun shown in Fig. 3;
Fig. 5 is the synoptic diagram of the extension pipe of the side-blown spray gun shown in Fig. 4;
Fig. 6 is that the B-B shown in Fig. 3 is to sectional view;
Fig. 7 is that the C-C shown in Fig. 3 is to sectional view; With
Fig. 8 is that the D-D shown in Fig. 3 is to sectional view.
Embodiment
Describe the embodiment of the utility model below in detail, the example of said embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Be exemplary through the embodiment that is described with reference to the drawings below, only be used to explain the utility model, and can not be interpreted as restriction the utility model.
In the description of the utility model; It will be appreciated that; The orientation of indications such as term " " center ", " vertically ", " laterally ", " on ", D score, " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward " or position relation are for based on orientation shown in the drawings or position relation; only be to describe with simplifying for the ease of describing the utility model; rather than the device or the element of indication or hint indication must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction to the utility model.
In the description of the utility model, need to prove that only if clear and definite regulation and qualification are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be to be fixedly connected, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly through intermediary, can be the connection of two element internals.For those of ordinary skill in the art, can particular case understand the concrete implication of above-mentioned term in the utility model.
Following with reference to the reduction oxidation furnace of figure 1-Fig. 8 description according to the refining phosphorus by hot method of the utility model embodiment.
As illustrated in fig. 1 and 2, comprise body of heater 1, top-blown spray gun 3 and side-blown spray gun 2 according to the reduction oxidation furnace of the refining phosphorus by hot method of an embodiment of the utility model.
Body of heater 1 has and is used for fused Rock Phosphate (72Min BPL) melt is joined the melt inlet 11 in the body of heater 1 exhanst gas outlet 12, slag notch 13 and ferrophosphorus outlet 14.For example; Rock Phosphate (72Min BPL) can be in advance in the fusing of melting furnace (not shown), supply in the body of heater 1 through melt inlet 11 through chute etc. then, exhanst gas outlet 12 is positioned at the top of body of heater 1; The Vanadium Pentoxide in FLAKES gas that reduction-oxidation obtains and other a spot of flue gases are discharged body of heater 1 from exhanst gas outlet 12; Slag is discharged through slag notch 13, and ferrophosphorus outlet 14 is positioned at below the slag notch 13, is used to discharge ferrophosphorus.
The lower end of top-blown spray gun 3 is inserted in the body of heater 1 along the vertical direction movably from the top of body of heater 1 and is positioned at all the time above the liquid level C of body of heater 1; Be used in body of heater 1, spraying into fuel and oxygen, for example in body of heater 1, spray into Sweet natural gas and pressurized air and oxygen through top-blown spray gun 3.Because top-blown spray gun 3 is not inserted in the liquid level C in the body of heater 1, therefore in the embodiment of the utility model, top-blown spray gun 3 is also referred to as non-immersion spray gun; Top-blown spray gun 3 can consumable thus, long service life, and spout is difficult for stopping up; Reduced cost and energy consumption, and top-blown spray gun 3 can use water cooling, improve evaporation efficiency; And can not take place to leak when immersed top-blown spray gun 3 is used for water cooling and the blast that produces, improved security.
In an embodiment of the utility model, because top-blown spray gun 3 is non-immersion spray gun, therefore can adopt water-cooled, in other words, top-blown spray gun 3 can be the water-cooled spray gun.For example, top-blown spray gun 3 is a sleeve type structure, thereby has formed the cooling channel in the top-blown spray gun 3; Said cooling channel links to each other with cooling water outlet 34 with cooling water inlet 33, thereby top-blown spray gun 3 is cooled off, and the cooling channel can be made up of the annular space of sleeve structure; And the injection channel of Sweet natural gas, pressurized air and oxygen also is made up of the annular space of sleeve structure; As shown in Figure 1, top-blown spray gun 3 has gas inlet 31, pressurized air and oxygen intake 32.
The lower end of side-blown spray gun 2 is from the laterally inclined of body of heater 1 and be inserted in the body of heater 1 movably and be positioned at below the liquid level C of body of heater 1.Side-blown spray gun 2 is used in body of heater 1, spraying into coal dust and oxygen from the side of body of heater 1, for example through pressurized air (coal wind) fine coal is injected in the body of heater 1.Side-blown spray gun 2 also can be the water-cooled spray gun, and side-blown spray gun 2 also can be sleeve structure and the cooling water inlet 251 and cooling water outlet 241 that have the cooling channel and be communicated with the cooling channel.Preferably, the cooling-water duct of side-blown spray gun 2 does not extend in the body of heater 1, to improve security.As shown in Figure 1, side-blown spray gun 2 has oxygen intake 221 and discharge 261.
Because side-blown spray gun 2 is all taked water-cooling pattern with top-blown spray gun 3, the protection to rifle has been played in therefore slagging scorification easily on rifle, has improved the life-span.
The side-blown spray gun 2 insertion mouths that side-blown spray gun 2 passes on the body of heater 1 stretch in the body of heater 1 obliquely, and are as shown in Figure 1, preferably; Side-blown spray gun 2 inserts mouth and is higher than the liquid level C in the body of heater 1, and thus, the replacing of side-blown spray gun 2 can not influence the operation in the body of heater 1; For example need not the melt emptying in the body of heater 1; Just can carry out the replacing of side-blown spray gun 2, safeguard, improve accessibility.
According to the reduction oxidation furnace of the refining phosphorus by hot method of the utility model embodiment, therefore side-blown spray gun 2 obliquely and can be inserted into movably in the body of heater 1 can highly move side-blown spray gun 2 according to the liquid level C in the body of heater 1; Regulate the degree of depth that side-blown spray gun 2 inserts; And, because side-blown spray gun 2 is inserted in the body of heater 1 movably, so the replacing of side-blown spray gun 2 and safeguard very convenient; Operate simpler, time saving and energy saving.
As shown in Figure 1, in a concrete example of the utility model, the reduction oxidation furnace of refining phosphorus by hot method comprises also and is used to drive the drive unit 4 that side-blown spray gun 2 moves that drive unit 4 links to each other with the upper end of side-blown spray gun 2.More specifically, drive unit 4 comprises motor, by motor-driven speed reduction unit and the windlass that driven by speed reduction unit, and the wireline of windlass links to each other with the upper end of side-blown spray gun 2.The starter motor forward rotation, the windlass Wound steel rope, thus pulling side-blown spray gun 2 moves up; The motor backward rotation, windlass discharges wireline, thus side-blown spray gun 2 moves down, and regulates side-blown spray gun 2 thus and is inserted into the degree of depth in the body of heater 1.
In the example depicted in fig. 1, show two side-blown spray guns 2 and two cover drive units 4, it is understandable that the utility model is not limited to this, according to actual needs, the side-blown spray gun 2 and drive unit 4 of any suitable quantity can be set.
As illustrated in fig. 1 and 2, in some embodiment of the utility model, slag notch 13 comprises slag notch 13 and the following slag notch 13 that is positioned at below the slag notch 13, and the position of following slag notch 13 is lower than side-blown spray gun 2 and is inserted into the interior end of body of heater 1.Preferably, melt inlet 11 is positioned under the liquid level C of body of heater 1, and thus, slag in the body of heater 1 and/or melt can fluid-tight melt inlets 11, prevent that the flue gas in the body of heater 1 from leaking through melt inlet 11.
As shown in Figure 1, in some embodiment of the utility model, side-blown spray gun 2 and straight down the angle between the direction 45 the degree-60 the degree scope in be advantageously, more preferably, angle be 45 the degree-60 the degree.
Below the simple process of utilizing according to the reduction oxidation furnace 200 refining phosphorus of the utility model embodiment of describing.
At first, Rock Phosphate (72Min BPL) is fused into melt at the melting furnace (not shown), then with melt in melt inlet 11 supplies to body of heater 1.
In body of heater 1, spray into oxygen and coal dust through side-blown spray gun 2, coal dust firing provides reduction reaction required heat, and a part of coal dust is as the reductive agent of reduction phosphorus in Rock Phosphate (72Min BPL) simultaneously.
Simultaneously; Top through top-blown spray gun 3 liquid level C in body of heater 1 sprays into Sweet natural gas and air (and/or oxygen); Combustion of natural gas keeps the temperature of liquid level C top in the body of heater 1, and airborne oxygen is produced Vanadium Pentoxide in FLAKES with the gaseous state phosphorus reaction of in melt and slag, overflowing.The a small amount of CO gas that produces in the reduction reaction of overflowing in melt and the slag further is oxidized to CO
2
Flue gas in the body of heater 1 mainly comprises P
2O
5, CO
2, CO, NO
2, discharge through the exhanst gas outlet 12 at body of heater 1 top.From said flue gas, isolate Vanadium Pentoxide in FLAKES, can be used to make phosphoric acid.
The slag that body of heater 1 generates is discharged through slag notch 13.When the ferrophosphorus of body of heater 1 bottom reaches a certain amount of, discharge ferrophosphorus through ferrophosphorus outlet 14.
When needs are changed and are safeguarded side-blown spray gun 2, through drive unit 4 side-blown spray gun 2 that moves up, after changing or safeguarding, again side-blown spray gun 2 is inserted in the body of heater 1, very convenient.
In the superincumbent process, top-blown spray gun 3 and side-blown spray gun 2 are cooled off through water coolant, thus slagging scorification on top-blown spray gun 3 and the side-blown spray gun 2, and slagging scorification plays a protective role to top-blown spray gun 3 and side-blown spray gun 2, has prolonged the life-span, has reduced cost.
Specifically describe according to side-blown spray gun 2 in the reduction oxidation furnace 200 of the utility model embodiment below with reference to Fig. 3-Fig. 8.
In an embodiment of the utility model, side-blown spray gun comprises: intervalve 21, oxygen hose 22, extension pipe 23, first water pipe 24 and second water pipe 25.
Like Fig. 3 and shown in Figure 4, intervalve 21 is used in the body of heater of reduction oxidation furnace, feeding coal dust, for example through pressurized air (coal wind) fine coal is injected in the body of heater on reduction-oxidation road.Oxygen hose 22 is set in intervalve 21 outsides between oxygen hose 22 and intervalve 21, limiting oxygen channel 220, so as in the body of heater of reduction oxidation furnace aerating oxygen.For example like Fig. 3 and shown in Figure 6, the sealing of second end of oxygen hose 22, and have the predetermined distance place with its second end on the oxygen hose 22 and be provided with oxygen intake 221.
As shown in Figure 4; The outer wall of first end of extension pipe 23 (like the left end among the figure) is provided with return portion 231; This return portion 231 is extended between extension pipe 23 and return portion 231, to limit the ring groove 32 that the sealing of first end and second end open wide towards second end (like the right-hand member among the figure) of extension pipe 23; As shown in Figure 5, for example return portion 231 can stretch out for the outer wall from first end of extension pipe 23 then towards the extended part of second end of extension pipe 23.Second end of extension pipe 23 links to each other with first end of oxygen hose 22, and is for example through being welded to connect, as shown in Figure 3.
As shown in Figure 4, first water pipe 24 is set in the outside of oxygen hose 22, and first end of first water pipe 24 links to each other with second end of return portion 231 between first water pipe 24 and oxygen hose 22 and extension pipe 23, to limit annular cooling channel 240.Second water pipe 25 is located in the annular cooling channel 240 annular cooling channel was circularized water entry 240a and annular water exit 240b in 240 minutes; Have gap 240c between first end of second water pipe 25 and first end face of ring groove 32, this gap 240c is communicated with annular water entry 240a and annular water exit 240b.Thus; Through annular water entry 240a and the common annular cooling channel of forming 240 of annular water exit 240b; Making water coolant from annular water entry 240a, get into cools off oxygen hose 22 and extension pipe 23; Enter into annular water exit 240b through gap 240c then, be discharged from last.
Reduction oxidation furnace according to the utility model embodiment; Being provided with annular cooling channel 240 through side-blown spray gun makes water coolant carry out water-cooled to it; Thereby make slagging scorification easily on side-blown spray gun; Because slagging scorification can play a protective role to side-blown spray gun, therefore can prolong the life-span of side-blown spray gun, reduce cost.
In some embodiment of the utility model, intervalve 21, oxygen hose 22, extension pipe 23, first water pipe 24 and the 25 coaxial settings of second water pipe, so that oxygen evenly spurts in the body of heater of reduction oxidation furnace, and water coolant is even to the cooling of side-blown spray gun.In addition, intervalve 21, oxygen hose 22, extension pipe 23, first water pipe 24 can be concordant with first end of second water pipe 25, makes the effective of injection of oxygen and coal dust.
In an embodiment of the utility model, pipeline section 212 in the middle of the pipeline section 211 and second in the middle of intervalve 21 comprises first shown in Fig. 3 and Fig. 4, limits the first oxygen path 220 with ring section between the first middle pipeline section 211 and the oxygen hose 22.Pipeline section 212 links to each other with second end of pipeline section 211 in the middle of first in the middle of second; And limit the second oxygen path 220b between pipeline section 212 and the oxygen hose 22 in the middle of second, wherein the above-mentioned oxygen channel 220 of the common formation of the first oxygen path 220a and the second oxygen path 220b with ring section.The radial dimension of the first oxygen path 220a that is to say that less than the radial dimension of the second oxygen path 220b annular cross-sectional area of the first oxygen path 220a is less than the annular cross-sectional area of the second oxygen path 220a.Thus, when the oxygen with certain speed entered in the first oxygen path 220a through the second oxygen path 220b, speed can increase and be injected to the body of heater inside of reduction oxidation furnace.
In the further embodiment of the utility model; On the whole length that is formed on pipeline section 211 in the middle of first on the periphery wall of pipeline section 211 in the middle of first and at isolated many grooves 2111 that make progress in week, so that oxygen can be injected in the body of heater of reduction oxidation furnace through groove 2111 further.
In one of them example of the utility model, the xsect of groove 2111 is rectangular.And in another example of the utility model, the xsect semicircular in shape of groove 2111.Certainly, the utility model is not limited to this.Groove 2111 can be the groove of Any shape, as long as thereby make that oxygen can be through the first end ejection of groove 2111 from side-blown spray gun.In addition, the size of groove 2111 also can be according to concrete application choice.
In other examples of the utility model, the periphery transition fit of pipeline section 211 in the middle of the inner peripheral surface of extension pipe 23 and first is so that many grooves 2111 of the inner peripheral surface of extension pipe 23 sealing.Thus, the first oxygen path 220a between the pipeline section 211 is divided into a plurality of sub-channels that limited by many grooves 2111 in the middle of the extension pipe 23 and first.Like this, when in oxygen enters into oxygen hose 22, also flowing in the extension pipe 23 that is connected oxygen hose 22 first ends, oxygen sprays with the dispersive mode through groove 2111, thereby has further improved the jeting effect of oxygen.
In some embodiment of the utility model, the periphery of the periphery of return portion 231 and first water pipe 24 and the inner peripheral surface of return portion 231 are concordant on the axial direction due of first water pipe 24 with the inner peripheral surface of first water pipe 24.In other embodiment of the utility model, the periphery of the periphery of extension pipe 23 and oxygen hose 22 and the inner peripheral surface of extension pipe 23 are concordant on the axial direction due of oxygen hose 22 with the inner peripheral surface of oxygen hose 22.
Alternatively, intervalve 21, extension pipe 23, return portion 231, first water pipe 24 and second water pipe 25 all have circular cross section.At this moment, the external diameter of the return portion 231 and first water pipe 24 and internal diameter equate respectively, and the external diameter of extension pipe 23 and oxygen hose 22 is also equal respectively with internal diameter.
As shown in Figure 5, extension pipe 23 can be integrally formed with return portion 231.The length of extension pipe 23 is difficult for being fractureed fully when side-blown spray gun receives external force greater than the length of the first middle pipeline section 211 thus.
In addition, alternatively, annular water exit 240b is between second water pipe 25 and the return portion 231 and first water pipe 24.At this moment, annular water entry 240a is limiting between second water pipe 25 and oxygen hose 22 and the extension pipe 23, and promptly the part near the annular cooling channel 240 of oxygen hose 22 is annular water entry, so that can carry out water-cooled to spray gun better.For example like Fig. 3 and Fig. 7, shown in Figure 8; Second end sealing of first water pipe 24; And have the predetermined distance place with its second end on first water pipe 24 and be provided with cooling water outlet 241; And second end of second water pipe 25 sealing, and have the predetermined distance place with its second end on second water pipe 25 and be provided with cooling water inlet 251.
In the description of this specification sheets, the description of reference term " embodiment ", " some embodiment ", " example ", " concrete example " or " some examples " etc. means the concrete characteristic, structure, material or the characteristics that combine this embodiment or example to describe and is contained among at least one embodiment or example of the utility model.In this manual, the schematic statement to above-mentioned term not necessarily refers to identical embodiment or example.And concrete characteristic, structure, material or the characteristics of description can combine with suitable manner in any one or more embodiment or example.
Although illustrated and described the embodiment of the utility model; Those having ordinary skill in the art will appreciate that: under the situation of principle that does not break away from the utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiment, the scope of the utility model is limited claim and equivalent thereof.
Claims (18)
1. the reduction oxidation furnace of a refining phosphorus by hot method is characterized in that, comprising:
Body of heater, said body of heater have and are used for fused Rock Phosphate (72Min BPL) melt is joined the intravital melt inlet of said stove, the exhanst gas outlet that is positioned at said body of heater top, slag notch and is positioned at the ferrophosphorus outlet below the said slag notch;
Top-blown spray gun, the lower end of said top-blown spray gun are inserted in the said body of heater along the vertical direction movably from the top of said body of heater and are positioned at the intravital liquid level of said stove top all the time; With
Side-blown spray gun, the lower end of said side-blown spray gun is from the laterally inclined of said body of heater and be inserted in the body of heater movably and be positioned at the intravital liquid level of said stove below.
2. the reduction oxidation furnace of refining phosphorus by hot method as claimed in claim 1 is characterized in that, the side-blown spray gun on the said body of heater inserts mouth and is higher than the intravital liquid level of said stove.
3. the reduction oxidation furnace of refining phosphorus by hot method as claimed in claim 2 is characterized in that, said side-blown spray gun and said top-blown spray gun are the water-cooled spray gun.
4. the reduction oxidation furnace of refining phosphorus by hot method as claimed in claim 3 is characterized in that, cooling water inlet and cooling water outlet that said side-blown spray gun and top-blown spray gun are sleeve type structure and are respectively equipped with the cooling channel and are communicated with said cooling channel.
5. like the reduction oxidation furnace of each described refining phosphorus by hot method among the claim 1-4, it is characterized in that also comprise being used to drive the drive unit that said side-blown spray gun moves, said drive unit links to each other with the upper end of said side-blown spray gun.
6. the reduction oxidation furnace of refining phosphorus by hot method as claimed in claim 5; It is characterized in that; Said drive unit comprises motor, by said motor-driven speed reduction unit and the windlass that drives by said speed reduction unit, the wireline of wherein said windlass links to each other with the upper end of said side-blown spray gun.
7. the reduction oxidation furnace of refining phosphorus by hot method as claimed in claim 1; It is characterized in that; Said slag notch comprises slag notch and the following slag notch that is positioned at below the slag notch, and the position of wherein said time slag notch is lower than said side-blown spray gun and is inserted into the intravital end of said stove.
8. the reduction oxidation furnace of refining phosphorus by hot method as claimed in claim 1 is characterized in that, said melt inlet is positioned under the intravital liquid level of stove.
9. the reduction oxidation furnace of refining phosphorus by hot method as claimed in claim 1 is characterized in that, said side-blown spray gun comprises:
Intervalve, said intervalve are used in the body of heater of reduction oxidation furnace, feeding coal dust;
Oxygen hose, said oxygen hose are set in said intervalve outside between said oxygen hose and said intervalve, to limit oxygen channel;
The extension pipe; The outer wall of first end of said extension pipe is provided with return portion; Said return portion is extended between said extension pipe and said return portion, to limit the ring groove that the sealing of first end and second end open wide towards second end of said extension pipe, and second end of said extension pipe links to each other with first end of said oxygen hose;
First end that first water pipe, said first water pipe sleeve are located at said oxygen hose outside and said first water pipe links to each other with second end of said return portion between said first water pipe and said oxygen hose and said extension pipe, to limit annular cooling channel;
Second water pipe; Said second water pipe is located in the said annular cooling channel so that said annular cooling channel branch is circularized water entry and annular water exit, has the gap that said annular water entry and said annular water exit are communicated with between first end of said second water pipe and first end face of said ring groove.
10. the reduction oxidation furnace of refining phosphorus by hot method according to claim 9 is characterized in that, said intervalve comprises:
Pipeline section in the middle of first limits the first oxygen path between the said first middle pipeline section and the said oxygen hose;
Pipeline section in the middle of second, in the middle of said second pipeline section link to each other with second end of pipeline section in the middle of said first and said second in the middle of limit the second oxygen path between pipeline section and the said oxygen hose;
Wherein said first oxygen path and the said second oxygen path are common to constitute said oxygen channel, and the radial dimension of the said first oxygen path is less than the radial dimension of the said second oxygen path.
11. the reduction oxidation furnace of refining phosphorus by hot method according to claim 10 is characterized in that, on the said whole length that is formed on pipeline section in the middle of said first in the middle of first on the periphery wall of pipeline section and at isolated many grooves that make progress in week.
12. the reduction oxidation furnace of refining phosphorus by hot method according to claim 11 is characterized in that, said many grooves extend along the axial straight line of the said intervalve of circumferential uniform distribution and edge of said intervalve.
13. the reduction oxidation furnace of refining phosphorus by hot method according to claim 11 is characterized in that, the periphery transition fit of pipeline section is so that the inner peripheral surface of said extension pipe seals said many grooves in the middle of the inner peripheral surface of said extension pipe and said first.
14. the reduction oxidation furnace of refining phosphorus by hot method according to claim 9; It is characterized in that the periphery of the periphery of said return portion and said first water pipe and the inner peripheral surface of said return portion are concordant on the axial direction due of said first water pipe with the inner peripheral surface of said first water pipe.
15. the reduction oxidation furnace of refining phosphorus by hot method according to claim 9; It is characterized in that the periphery of said extension pipe is concordant on the axial direction due of said oxygen hose with the inner peripheral surface of said oxygen hose with the inner peripheral surface of the periphery of said oxygen hose and said extension pipe.
16. the reduction oxidation furnace of refining phosphorus by hot method according to claim 9 is characterized in that, said extension pipe and said return portion are integrally formed.
17. the reduction oxidation furnace of refining phosphorus by hot method according to claim 9 is characterized in that, the length of said extension pipe is greater than the length of the said first middle pipeline section.
18. the reduction oxidation furnace of refining phosphorus by hot method according to claim 9 is characterized in that, said annular water exit is between said second water pipe and the said return portion and first water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202389887U CN202164118U (en) | 2011-07-07 | 2011-07-07 | Reduction-oxidation furnace for hot-method phosphorus smelting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202389887U CN202164118U (en) | 2011-07-07 | 2011-07-07 | Reduction-oxidation furnace for hot-method phosphorus smelting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202164118U true CN202164118U (en) | 2012-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202389887U Withdrawn - After Issue CN202164118U (en) | 2011-07-07 | 2011-07-07 | Reduction-oxidation furnace for hot-method phosphorus smelting |
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| CN (1) | CN202164118U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303851A (en) * | 2011-07-07 | 2012-01-04 | 中国恩菲工程技术有限公司 | Reduction-oxidation furnace for refining phosphorus by hot method |
-
2011
- 2011-07-07 CN CN2011202389887U patent/CN202164118U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102303851A (en) * | 2011-07-07 | 2012-01-04 | 中国恩菲工程技术有限公司 | Reduction-oxidation furnace for refining phosphorus by hot method |
| CN102303851B (en) * | 2011-07-07 | 2013-10-16 | 中国恩菲工程技术有限公司 | Reduction-oxidation furnace for refining phosphorus by hot method |
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Owner name: SICHUAN CHUANHENG CHEMICAL CORPORATION Effective date: 20120926 |
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Effective date of registration: 20120926 Address after: 100038 Fuxing Road, Beijing, Haidian District, No. 12 Patentee after: China Enfi Engineering Technology Co., Ltd. Patentee after: Sichuan Chuanheng Chemical Industry Co., Ltd. Address before: 100038 Fuxing Road, Beijing, Haidian District, No. 12 Patentee before: China Enfi Engineering Technology Co., Ltd. |
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