CN103642531A - Cross blowback device of shell coal gasifier and fabrication method thereof - Google Patents
Cross blowback device of shell coal gasifier and fabrication method thereof Download PDFInfo
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- CN103642531A CN103642531A CN201310631891.6A CN201310631891A CN103642531A CN 103642531 A CN103642531 A CN 103642531A CN 201310631891 A CN201310631891 A CN 201310631891A CN 103642531 A CN103642531 A CN 103642531A
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Abstract
The invention relates to a cross blowback device of a shell coal gasifier and a fabrication method thereof. The blowback device comprises a blowback air inlet header pipe and at least four groups of blowing nozzles I, wherein the blowing nozzles I are respectively arranged on a cross hanger, and respectively communicated with the blowback air inlet header pipe; each blowing nozzle I is a heat-resisting nozzle fabricated by rolled steel 310S, and comprises a cylindrical nozzle body; a center through hole is formed on the cylindrical nozzle body along the axial center; a circumferential hole penetrating through the center through hole is formed on each cylindrical nozzle body in a radial manner; an inclined hole I penetrating through the center through hole is also formed on each cylindrical nozzle body. The nozzle disclosed by the invention is prepared from solid round steel in a manner of tapping at the corresponding position, can resist high temperature, and does not need to be cooled by water in a use procedure, and meanwhile, the problem that the blowback air hole is easily blocked, so that the blowback device loses efficacy in blowback is solved.
Description
Technical field
The present invention relates to a kind of blowback device and making method, particularly the novel blowback device of a kind of shell coal gasifier cross bar and making method.
Background technology
The import of shell coal gasifier superheat section is four layers of concentric ring tubular construction, center is blocked with cover plate in innermost layer center, do not allow gas directly from center, pass through, but by between the concentric endless tube of every layer, at right angle setting, with cross suspension bracket, it is support, and flying dust can be accumulated on cross suspension bracket, finally stop up superheat section import, so flying dust blowing-down device must be installed, the flying dust blowing-down device using is at present the cross sootblower with water-cooled, as Figure 1-Figure 2.From service condition, there is following problem:
1, this sootblower forms the dead band of blowing down at the import and export of water-cooled tube, and purge gas cannot blow to, and easily causes the accumulation of flying dust, particularly in the low place of gas flow rate.
2, this sootblower is provided with and blows grey point less than cover plate place below cross suspension bracket, and flying dust is on the cover board accumulated, and finally stops up import.
3, this sootblower uses water-cooled, and after having grown duration of service, gas causes leakage to washing away of water pipe, has influence on the operation of whole coal gasifier.
4, this sootblower is manufactured, complexity is installed, and workload is large.
5, the blowback air pore volume of this sootblower easily stops up, and the blowback of blowback device was lost efficacy.
Summary of the invention
The technical problem to be solved in the present invention is: providing a kind of does not need by shell coal gasifier cross bar blowback device and making method for water-cooled cross blowback device, this shower nozzle has solved former blowback device shower nozzle blowback air pore volume simultaneously and has easily stopped up, make the problem of the blowback inefficacy of blowback device, avoid causing system shutdown because vapourizing furnace superheat section dust stratification stops up, to ensure vapourizing furnace operation steady in a long-term.
The technical scheme solving the problems of the technologies described above is: a kind of shell coal gasifier cross bar blowback device, comprise that blowback air intake header and at least 4 groups that lay respectively on cross suspension bracket blow grey shower nozzle I, blowing grey shower nozzle I is communicated with blowback air intake header respectively, the described grey shower nozzle I of blowing is the high temperature resistant shower nozzle that adopts steel 310S to make, the described grey shower nozzle I of blowing comprises cylindrical head body, described cylindrical head body axial centre has a central through hole, described cylindrical head body radially has the circumferential aperture connecting with central through hole, in described cylindrical head body, also have the inclined hole I connecting with central through hole.
Described blow in grey shower nozzle I, take medullary ray be positioned at 1-4 of same circumference circumferentially aperture be one group, in cylindrical head body, circumferential aperture N group is set, the value of N is 1-30, described inclined hole I quantity is M, the value of M is 1-10, the angle α of described inclined hole I medullary ray and cylindrical head body axis is 35-60 °, and in same group of described circumferential aperture, the circumferential distance β of adjacent 2 circumferential apertures is 40-60 °.
The length L 1 of the described cylindrical head body of blowing grey shower nozzle I is 75-300mm, the diameter D1 of described cylindrical head body is 30-70mm, the diameter D2 of described central through hole is 6-18mm, described inclined hole I and the circumferentially diameter of aperture are 3-6mm, described circumferential aperture be take 3 as one group, and the distance L 2 between adjacent 2 groups of circumferential apertures is 3-8mm.
The described inclined hole I medullary ray that blows grey shower nozzle I and the angle α of cylindrical head body axis are 37 °, distance L 2 between described adjacent 2 groups of circumferential apertures is 4mm, in 3 circumferential apertures, the circumferential distance β of adjacent 2 circumferential apertures is 45 ° on the same group, and described inclined hole I and the circumferentially diameter of aperture are 3.5mm; The length L 1 of described cylindrical head body is 80mm, and the diameter D1 of cylindrical head body is 30mm, and the diameter D2 of described central through hole is 8mm.
This blowback device is also provided with and is positioned at the grey shower nozzle II of blowing that the employing steel 310S of cover plate top, cross suspension bracket below makes, blowing grey shower nozzle II is communicated with blowback air intake header, the described grey shower nozzle II of blowing comprises tubaeform head body, in described tubaeform head body, have blind hole, on tubaeform head body sidewall, uniform circumference is provided with X the inclined hole II connecting with blind hole, the angle γ of the medullary ray of inclined hole II and blind hole medullary ray is 20-50 °, and the value of X is 4-30.
The diameter of described inclined hole II is 3-6mm, and the diameter D4 of described blind hole is 30-40mm, and the height of described tubaeform head body is 100-250mm, and outside diameter D3 is 50-80mm, and end diameter is than the large 1-2mm of blind hole diameter.
The described grey shower nozzle I of blowing is arranged horizontally, and described blows grey shower nozzle II for vertically arranging.
Another technical scheme of the present invention is: a kind of making method of shell coal gasifier cross bar blowback device, comprises the following steps:
A, blow the making of grey shower nozzle I, step is as follows:
A1, get length 75-300mm, ￠ 30-70mm material is 310S round steel, bores the central through hole of a ￠ 6-18mm in round steel axial centre;
A2, at round steel one end face, bore M the ￠ 3-6mm inclined hole I with central through hole perforation, inclined hole I medullary ray and central through hole medullary ray angle α are 35-60 °, the value of M is 1-10;
A3, the spud in circumferential aperture of the ￠ 3-6mm that N group and central through hole connect radially, the quantity of every group of circumferential aperture is 1-4, in circumferential aperture, the circumferential distance β of adjacent 2 circumferential apertures is 40-60 ° on the same group, and circumferentially the medullary ray of aperture is positioned on same circumference on the same group, and the value of N is 1-30;
B, blow the making of grey shower nozzle II, step is as follows:
B1, get length 100-250mm, ￠ 50-80mm material is 310S round steel, bores the blind hole of a ￠ 30-40mm in round steel axial centre;
B2, on round steel sidewall, circumferential direction evenly bores the ￠ 3-6mm inclined hole II that X and blind hole connect, and the angle γ of the medullary ray of inclined hole II and blind hole medullary ray is 20-50 °, and the value of X is that 4-30 is individual;
B3, from round steel, have a blind hole one end to half of round steel length, round steel outer wall is processed into horn-like, round steel middle part to one end diameter that has blind hole reduces gradually, has the diameter of one end of blind hole than the large 1-2mm of blind hole diameter;
The connection of C, shower nozzle: first each is blown to grey shower nozzle I and be communicated with blowback air intake header with pipeline, then will blow grey shower nozzle II and use pipeline to be communicated with blowback air intake header.
Further technical scheme of the present invention is: a kind of making method of shell coal gasifier cross bar blowback device, comprises the following steps:
A, blow the making of grey shower nozzle I, step is as follows:
A1, get length 80mm, ￠ 30mm material is 310S round steel, bores the central through hole of a ￠ 8mm in round steel axial centre;
A2, at round steel one end face, bore M the ￠ 3.5mm inclined hole I with central through hole perforation, inclined hole I medullary ray and central through hole medullary ray angle α are 37 °, the value of M is 1-10;
A3, the spud in circumferential aperture of the ￠ 3.5mm that N group and central through hole connect radially, the quantity of every group of circumferential aperture is 3, in circumferential aperture, the circumferential distance β of adjacent 2 circumferential apertures is 45 ° on the same group, and circumferentially the medullary ray of aperture is positioned on same circumference on the same group, and the value of N is 1-15;
B, blow the making of grey shower nozzle II, step is as follows:
B1, get length 150mm, ￠ 56mm material is 310S round steel, bores the blind hole of a ￠ 38mm in round steel axial centre;
B2, on round steel sidewall, circumferential direction evenly bores the ￠ 3.5mm inclined hole II of X and blind hole perforation, and the angle γ of the medullary ray of inclined hole II and blind hole medullary ray is 26 °, and the value of X is 12;
B3, from round steel, have a blind hole one end to half of round steel length, round steel outer wall is processed into horn-like, round steel middle part to one end diameter that has blind hole reduces gradually, has the diameter of one end of blind hole than the large 1-2mm of blind hole diameter;
The connection of C, shower nozzle: first each is blown to grey shower nozzle I and be communicated with blowback air intake header with pipeline, then will blow grey shower nozzle II and use pipeline to be communicated with blowback air intake header.
The described grey shower nozzle I of blowing is arranged horizontally, and described blows grey shower nozzle II for vertically arranging.
Owing to adopting above technical scheme, a kind of shell coal gasifier cross bar blowback device of the present invention and the beneficial effect that making method has are: the dead band that does not exist flying dust to blow down, that flying dust effect is blown down in the top of cross suspension bracket is better, has increased the ash that blows on cover plate, has avoided the dust stratification on cover plate; Because blowback hole is all horizontal direction, blowback hole can not stopped up; Cancelled water-cooling structure, made, installed simple.Making method of the present invention has that technique is simple, processing ease, be convenient to the advantages such as enforcement.
The present invention blows the technique effect that grey shower nozzle has following excellent benefit:
1. high temperature resistant, use procedure does not need to use water cooling.Shower nozzle of the present invention is to adopt solid 310S material round steel, by preparing in corresponding position perforate, this shower nozzle vapourizing furnace up to more than 1700 high temperature of spending under still within the scope of allowable temperature.Therefore the present invention does not in use need, with water cooling, just not need to arrange water coolant water inlet pipe and water outlet pipe, has simplified structure and the installation process of blowback device; Avoided the pipe leakage problem that may cause washing away of water pipe because of gas simultaneously.
2. solved existing blowback device shower nozzle blowback air pore volume and easily stopped up, made the problem of the blowback inefficacy of blowback device.It is on circumferential distance circumference horizontal plane, with 45 ° and 135 ° of directions, respectively to open the circumferential aperture of 1 ￠ 3.5mm that the present invention blows the good structure of grey shower nozzle I, in 90 ° of directions of horizontal plane, open the circumferential aperture of 1 ￠ 3.5mm, become the angle of 37 ° to open 1 ￠ 3.5mm inclined hole I with blowback device medullary ray, at blowback device medullary ray, open the central through hole of the ￠ 8mm connecting with above-mentioned 3 circumferential apertures and inclined hole I, be that shower nozzle of the present invention is comprised of the perforate of 5 different directions altogether, the synthetic gas of its surrounding is produced to strong perturbation action, purging scope is increased to whole internal space, avoid occurring blowback dead angle, thereby reach the object that prevents dust stratification.So not only also avoid the powder ash of device interior directly to fall into and blown in grey hole, stopped up the problem of blowback pore; Once because after the ash of molten molten state cools down, the cinder that gets lodged in aperture becomes extremely hard, even if adopt boring to be also difficult to get through.
Below, in conjunction with the accompanying drawings and embodiments a kind of shell coal gasifier cross bar blowback device of the present invention and the technical characterictic of making method are further described.
Accompanying drawing explanation
Fig. 1-Fig. 2: existing shell coal gasifier cross bar blowback device structural representation.
Fig. 1: vertical view, Fig. 2: the main sectional view of looking.
Fig. 3-Fig. 4: the present invention's the novel blowback device of a kind of shell coal gasifier cross bar structural representation.
Fig. 3: vertical view, Fig. 4: the main sectional view of looking.
Fig. 5-Fig. 7: the embodiment of the present invention one blow grey shower nozzle I structural representation.
Fig. 5: left view, the A-A sectional view of Fig. 6: Fig. 5, the B-B sectional view of Fig. 7: Fig. 6.
Fig. 8: the embodiment of the present invention two blow grey shower nozzle I structural representation.
Fig. 9-Figure 10: the present invention blows grey shower nozzle II structural representation.
Fig. 9: the main C-C sectional view of looking sectional view, Figure 10: Fig. 9.
In Fig. 1-Fig. 2: 11-blowback air intake header, 12-blows grey shower nozzle, four layers of concentric endless tube of 13-superheat section, 14-cooling water outlet, 15-entrance of cooling water, the import of 16-blowback air.
In Fig. 3-Fig. 9: 1-blowback air intake header, 2-blows grey shower nozzle I, the cylindrical head body of 21-, 22-central through hole, 23-inclined hole I, the circumferential aperture of 24-, the circumferential aperture I of 241-, the circumferential aperture II of 242-, the circumferential aperture III of 243-, four layers of concentric endless tube of 3-superheat section, 4-blows grey shower nozzle II, head body that 41-is tubaeform, 42-blind hole, 43-inclined hole II, 5-cross suspension bracket, 6-below cover plate.
In Fig. 6, Fig. 7, Fig. 9, arrow represents airintake direction.
Embodiment
Embodiment 1: the novel blowback device of a kind of shell coal gasifier cross bar, as Figure 3-Figure 4, comprise that blowback air intake header 1 blows grey shower nozzle I 2 with 4 groups that lay respectively on cross suspension bracket, blowing grey shower nozzle I is communicated with blowback air intake header respectively, the described grey shower nozzle I of blowing is the high temperature resistant shower nozzle that adopts steel 310S to make, the described grey shower nozzle I of blowing comprises cylindrical head body 21, described cylindrical head body axial centre has a central through hole 22, described cylindrical head body radially has the N connecting with central through hole and organizes circumferential aperture 24, N=1, 3 circumferential apertures 24 that the medullary ray of take is positioned at same circumference are one group, in 3 circumferential apertures, the circumferential distance β of adjacent 2 circumferential apertures is 45 ° on the same group.In described cylindrical head body, also have M the inclined hole I 23 connecting with central through hole, M=1, the angle α of described inclined hole I medullary ray and cylindrical head body axis is 35-45 °, and described inclined hole I and the circumferentially diameter of aperture are 3-6mm (referring to Fig. 5-Fig. 7).
This blowback device is also provided with and is positioned at the grey shower nozzle II 4 of blowing that the employing steel 310S of cover plate top, cross suspension bracket below makes, blowing grey shower nozzle II is communicated with blowback air intake header 1, the described grey shower nozzle II of blowing comprises tubaeform head body 41, in described tubaeform head body, have blind hole 42, on tubaeform head body sidewall, uniform circumference is provided with X the inclined hole II 43 connecting with blind hole, the angle γ of the medullary ray of inclined hole II and blind hole medullary ray is 26 °, X=12.The diameter of described inclined hole II is 3.5mm, and the diameter D4 of described blind hole is 38mm, and the height H 1 of described tubaeform head body is 150mm, and the D3 of outside diameter is 56 mm, and end diameter is than the large 1-2mm of blind hole diameter (referring to Fig. 9-Figure 10).
The described grey shower nozzle I of blowing is arranged horizontally, and described blows grey shower nozzle II for vertically arranging.
In embodiment 1, from left view, 3 circumferential apertures that blow grey shower nozzle I are respectively the circumferential aperture I 241 that is positioned at 45 ° of positions, are positioned at the circumferential aperture II 242 and the circumferential aperture III 243 that is positioned at 135 ° of positions of 90 ° of positions, and inclined hole I is also positioned at 90 ° of positions.
Embodiment 2: the novel blowback device of a kind of shell coal gasifier cross bar, its basic structure is identical with embodiment 1, difference is to blow the concrete structure of grey shower nozzle I, in the present embodiment, blowing grey shower nozzle I is the high temperature resistant shower nozzle that adopts steel 310S to make, the described grey shower nozzle I of blowing comprises cylindrical head body 21, described cylindrical head body axial centre has a central through hole 22, described cylindrical head body radially has the N connecting with central through hole and organizes circumferential aperture 24, N=3, 3 circumferential apertures 24 that the medullary ray of take is positioned at same circumference are one group, distance L 2 between adjacent 2 groups of circumferential apertures is 4mm, in 3 circumferential apertures, the circumferential distance β of adjacent 2 circumferential apertures is 45 ° on the same group.In described cylindrical head body, also have M the inclined hole I 23 connecting with central through hole, M=3, the angle α of described inclined hole I medullary ray and cylindrical head body axis is 37 °, described inclined hole I and the circumferentially diameter of aperture are 3.5mm; The length L 1 of described cylindrical head body is 80mm, and the diameter D1 of cylindrical head body is 30mm, and the diameter D2 of described central through hole is 8mm.
A kind of conversion as embodiment of the present invention 1-embodiment 2, the group of the circumferential aperture arranging in the described cylindrical head body of blowing grey shower nozzle I is counted N and can be determined according to practical situation, the value of General N is 1-30, be preferably 1-15, in every group, circumferentially the number of aperture can be determined as required, and the 1-4 of generally take is individual is 1 group.In same group of circumferential aperture, the circumferential distance β of adjacent 2 circumferential apertures can suitably adjust, and is generally 40-60 °, and the circumferential distance of adjacent 2 circumferential apertures can equate also can be unequal.Distance L 2 between adjacent 2 groups of circumferential apertures also can be adjusted as required, is generally 3-8mm.The size of described cylindrical head body is definite according to needs of production, and the length L 1 of general cylindrical head body is 75-300mm, and the diameter D1 of described cylindrical head body is 30-70mm.The diameter D2 of described central through hole also can suitably change, and is generally 6-18mm.The angle α of the number M of described inclined hole I and inclined hole I medullary ray and cylindrical head body axis also can be definite according to practical situation, and the value of general M is 1-10, and α is 35-60 °.
As another conversion of embodiment of the present invention 1-embodiment 2, described cylindrical head body outer wall is arranged to stepped, and large one end, one end is little, and outside diameter is than the large 5-15mm of end diameter, and inclined hole I and circumferentially aperture are positioned at large end section.
In embodiment of the present invention 1-embodiment 2, the described blind-hole bottom that blows grey shower nozzle II to the height H 2 of tubaeform head body large end face is 10-20mm, is preferably 10mm.The described inclined hole II top medullary ray that blows grey shower nozzle II to the height H 3 of tubaeform head body large end face is 30-50mm, is preferably 37mm.As a kind of conversion of embodiment of the present invention 1-embodiment 2, the number X of the medullary ray of described inclined hole II and the angle γ of blind hole medullary ray and inclined hole II can be according to practical situation adjustment, and general γ is 20-50 °, and the value of X is 4-30.The described diameter of inclined hole II, the diameter of blind hole and tubaeform head body size all can suitably change as required, the diameter of general inclined hole II is 3-6mm, the diameter of blind hole is 30-40mm, and the height of tubaeform head body is 100-250mm, and outside diameter is 50-80mm.
Embodiment 3: the making method of the novel blowback device of a kind of shell coal gasifier cross bar, comprises the following steps:
A, blow the making of grey shower nozzle I, step is as follows:
A1, to get ￠ 30-70mm material be 310S round steel, bores the central through hole 2 of a ￠ 6-18mm in round steel axial centre;
A2, at round steel one end face, bore M the ￠ 3-6mm inclined hole I 3 with central through hole perforation, inclined hole I medullary ray and central through hole medullary ray angle α are 35-60 °, the value of M is 1-10;
A3, the spud in circumferential aperture 4 of the ￠ 3-6mm that N group and central through hole connect radially, the quantity of every group of circumferential aperture is 1-4, in circumferential aperture, the circumferential distance β of adjacent 2 circumferential apertures is 40-60 ° on the same group, and circumferentially the medullary ray of aperture is positioned on same circumference on the same group, and the value of N is 1-30;
B, blow the making of grey shower nozzle II, step is as follows:
B1, to get ￠ 50-80mm material be 310S round steel, bores the blind hole of a ￠ 30-40mm in round steel axial centre;
B2, on round steel sidewall, circumferential direction evenly bores the ￠ 3-6mm inclined hole II that X and blind hole connect, and the angle γ of the medullary ray of inclined hole II and blind hole medullary ray is 20-50 °, and the value of X is that 4-30 is individual;
B3, from round steel, have a blind hole one end to half of round steel length, round steel outer wall is processed into horn-like, round steel middle part to one end diameter that has blind hole reduces gradually, has the diameter of one end of blind hole than the large 1-2mm of blind hole diameter;
The connection of C, shower nozzle: first each is blown to grey shower nozzle I and be communicated with blowback air intake header with pipeline, then will blow grey shower nozzle II and use pipeline to be communicated with blowback air intake header.
Embodiment 4: the making method of the novel blowback device of a kind of shell coal gasifier cross bar, comprises the following steps:
A, blow the making of grey shower nozzle I, step is as follows:
A1, to get ￠ 30mm material be 310S round steel, bores the central through hole 2 of a ￠ 8mm in round steel axial centre;
A2, at round steel one end face, bore M the ￠ 3.5mm inclined hole I 3 with central through hole perforation, inclined hole I medullary ray and central through hole medullary ray angle α are 37 °, the value of M is 1-10;
A3, the spud in circumferential aperture 4 of the ￠ 3.5mm that N group and central through hole connect radially, the quantity of every group of circumferential aperture is 3, in circumferential aperture, the circumferential distance β of adjacent 2 circumferential apertures is 45 ° on the same group, and circumferentially the medullary ray of aperture 4 is positioned on same circumference on the same group, and the value of N is 1-15;
B, blow the making of grey shower nozzle II, step is as follows:
B1, to get ￠ 56mm material be 310S round steel, bores the blind hole of a ￠ 38mm in round steel axial centre;
B2, on round steel sidewall, circumferential direction evenly bores the ￠ 3.5mm inclined hole II of X and blind hole perforation, and the angle γ of the medullary ray of inclined hole II and blind hole medullary ray is 26 °, and the value of X is 12;
B3, from round steel, have a blind hole one end to half of round steel length, round steel outer wall is processed into horn-like, round steel middle part to one end diameter that has blind hole reduces gradually, has the diameter of one end of blind hole than the large 1-2mm of blind hole diameter; On sidewall, inclined hole II medullary ray to the distance H 3 of round steel large end face is 37mm;
The connection of C, shower nozzle: first each is blown to grey shower nozzle I and be communicated with blowback air intake header with pipeline, then will blow grey shower nozzle II and use pipeline to be communicated with blowback air intake header.
A kind of conversion as the invention process 3-embodiment 4, after steps A 3, be also provided with steps A 4, steps A 4 is: round steel outside surface is processed into stepped, is about to round steel one end and is processed into than the little 5-15mm of the other end diameter, inclined hole I and circumferentially aperture are positioned at one end that diameter is large.The described grey shower nozzle I of blowing is arranged horizontally, and described blows grey shower nozzle II for vertically arranging.
The novel blowback device structure of improvement cost invention on the shell coal gasifier cross bar blowback device basis of existing employing water-cooled, can realize in the following manner: remove original 4 sootblower shower nozzles, in the blowback air exit of original sootblower shower nozzle, respectively add a level and blow grey shower nozzle (blowing grey shower nozzle I), the direction leaning forward with level is blown down the dust stratification on cross suspension bracket.The import and export of former water-cooled tube blocks.Water coolant water inlet pipe and water outlet pipe between vapourizing furnace internals and shell is connected to form loop, the mistake cause thermal damage of anti-antipriming pipe.Below cross suspension bracket, above cover plate, increase by one and blow grey shower nozzle (blowing grey shower nozzle II).
Claims (10)
1. a shell coal gasifier cross bar blowback device, at least 4 groups that comprise blowback air intake header (1) and lay respectively on cross suspension bracket are blown grey shower nozzle I (2), blowing grey shower nozzle I is communicated with blowback air intake header respectively, it is characterized in that: the described grey shower nozzle I of blowing is the high temperature resistant shower nozzle that adopts steel 310S to make, the described grey shower nozzle I of blowing comprises cylindrical head body (21), described cylindrical head body axial centre has a central through hole (22), described cylindrical head body radially has the circumferential aperture (24) connecting with central through hole, in described cylindrical head body, also have the inclined hole I (23) connecting with central through hole.
2. shell coal gasifier cross bar blowback device according to claim 1, it is characterized in that: described blow in grey shower nozzle I, take medullary ray be positioned at 1-4 of same circumference circumferentially aperture (24) be one group, in cylindrical head body, circumferential aperture N group is set, the value of N is 1-30, described inclined hole I (23) quantity is M, the value of M is 1-10, the angle α of described inclined hole I medullary ray and cylindrical head body axis is 35-60 °, and in same group of described circumferential aperture, the circumferential distance β of adjacent 2 circumferential apertures is 40-60 °.
3. shell coal gasifier cross bar blowback device according to claim 2, it is characterized in that: the length L 1 of the described cylindrical head body of blowing grey shower nozzle I is 75-300mm, the diameter D1 of described cylindrical head body is 30-70mm, the diameter D2 of described central through hole is 6-18mm, described inclined hole I and the circumferentially diameter of aperture are 3-6mm, described circumferential aperture be take 3 as one group, and the distance L 2 between adjacent 2 groups of circumferential apertures is 3-8mm.
4. shell coal gasifier cross bar blowback device according to claim 3, it is characterized in that: the described inclined hole I medullary ray that blows grey shower nozzle I and the angle α of cylindrical head body axis are 37 °, distance L 2 between described adjacent 2 groups of circumferential apertures is 4mm, in 3 circumferential apertures, the circumferential distance β of adjacent 2 circumferential apertures is 45 ° on the same group, and described inclined hole I and the circumferentially diameter of aperture are 3.5mm; The length L 1 of described cylindrical head body is 80mm, and the diameter D1 of cylindrical head body is 30mm, and the diameter D2 of described central through hole is 8mm.
5. according to the shell coal gasifier cross bar blowback device described in claim 1-4 any one, it is characterized in that: this blowback device be also provided be positioned at that the employing steel 310S of cover plate top, cross suspension bracket below makes blow grey shower nozzle II (4), blowing grey shower nozzle II is communicated with blowback air intake header (1), the described grey shower nozzle II of blowing comprises tubaeform head body (41), in described tubaeform head body, have blind hole (42), on tubaeform head body sidewall, uniform circumference is provided with X the inclined hole II (43) connecting with blind hole, the angle γ of the medullary ray of inclined hole II and blind hole medullary ray is 20-50 °, the value of X is 4-30.
6. shell coal gasifier cross bar blowback device according to claim 5, it is characterized in that: the diameter of described inclined hole II is 3-6mm, the diameter D4 of described blind hole is 30-40mm, the height of described tubaeform head body is 100-250mm, outside diameter D3 is 50-80mm, and end diameter is than the large 1-2mm of blind hole diameter.
7. shell coal gasifier cross bar blowback device according to claim 5, is characterized in that: the described grey shower nozzle I of blowing is arranged horizontally, and described blows grey shower nozzle II for vertically arranging.
8. a making method for shell coal gasifier cross bar blowback device, is characterized in that: comprise the following steps:
A, blow the making of grey shower nozzle I, step is as follows:
A1, get length 75-300mm, ￠ 30-70mm material is 310S round steel, bores the central through hole (2) of a ￠ 6-18mm in round steel axial centre;
A2, at round steel one end face, bore M the ￠ 3-6mm inclined hole I (3) with central through hole perforation, inclined hole I medullary ray and central through hole medullary ray angle α are 35-60 °, the value of M is 1-10;
A3, the spud in circumferential aperture (4) of the ￠ 3-6mm that N group and central through hole connect radially, the quantity of every group of circumferential aperture is 1-4, in circumferential aperture, the circumferential distance β of adjacent 2 circumferential apertures is 40-60 ° on the same group, circumferentially the medullary ray of aperture is positioned on same circumference on the same group, and the value of N is 1-30;
B, blow the making of grey shower nozzle II, step is as follows:
B1, get length 100-250mm, ￠ 50-80mm material is 310S round steel, bores the blind hole of a ￠ 30-40mm in round steel axial centre;
B2, on round steel sidewall, circumferential direction evenly bores the ￠ 3-6mm inclined hole II that X and blind hole connect, and the angle γ of the medullary ray of inclined hole II and blind hole medullary ray is 20-50 °, and the value of X is that 4-30 is individual;
B3, from round steel, have a blind hole one end to half of round steel length, round steel outer wall is processed into horn-like, round steel middle part to one end diameter that has blind hole reduces gradually, has the diameter of one end of blind hole than the large 1-2mm of blind hole diameter;
The connection of C, shower nozzle: first each is blown to grey shower nozzle I and be communicated with blowback air intake header with pipeline, then will blow grey shower nozzle II and use pipeline to be communicated with blowback air intake header.
9. the making method of shell coal gasifier cross bar blowback device according to claim 8, is characterized in that: comprise the following steps:
A, blow the making of grey shower nozzle I, step is as follows:
A1, get length 80mm, ￠ 30mm material is 310S round steel, bores the central through hole (2) of a ￠ 8mm in round steel axial centre;
A2, at round steel one end face, bore M the ￠ 3.5mm inclined hole I (3) with central through hole perforation, inclined hole I medullary ray and central through hole medullary ray angle α are 37 °, the value of M is 1-10;
A3, the spud in circumferential aperture (4) of the ￠ 3.5mm that N group and central through hole connect radially, the quantity of every group of circumferential aperture is 3, in circumferential aperture, the circumferential distance β of adjacent 2 circumferential apertures is 45 ° on the same group, circumferentially the medullary ray of aperture (4) is positioned on same circumference on the same group, and the value of N is 1-15;
B, blow the making of grey shower nozzle II, step is as follows:
B1, get length 150mm, ￠ 56mm material is 310S round steel, bores the blind hole of a ￠ 38mm in round steel axial centre;
B2, on round steel sidewall, circumferential direction evenly bores the ￠ 3.5mm inclined hole II of X and blind hole perforation, and the angle γ of the medullary ray of inclined hole II and blind hole medullary ray is 26 °, and the value of X is 12;
B3, from round steel, have a blind hole one end to half of round steel length, round steel outer wall is processed into horn-like, round steel middle part to one end diameter that has blind hole reduces gradually, has the diameter of one end of blind hole than the large 1-2mm of blind hole diameter;
The connection of C, shower nozzle: first each is blown to grey shower nozzle I and be communicated with blowback air intake header with pipeline, then will blow grey shower nozzle II and use pipeline to be communicated with blowback air intake header.
10. the making method of shell coal gasifier cross bar blowback device according to claim 8 or claim 9, is characterized in that: the described grey shower nozzle I of blowing is arranged horizontally, and described blows grey shower nozzle II for vertically arranging.
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| CN103642531B (en) | 2015-03-25 |
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