CN103771453A - Internal cleaning method for ammonia still - Google Patents
Internal cleaning method for ammonia still Download PDFInfo
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- CN103771453A CN103771453A CN201310685497.0A CN201310685497A CN103771453A CN 103771453 A CN103771453 A CN 103771453A CN 201310685497 A CN201310685497 A CN 201310685497A CN 103771453 A CN103771453 A CN 103771453A
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- nozzle
- ammonia still
- head body
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- medullary ray
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Abstract
The invention discloses an internal cleaning method for an ammonia still. The method comprises the steps as follows: firstly, drill holes are respectively formed on the left side and the right side of a center line of an ammonia still body; the drill holes at the left side and the right side are formed in a staggered manner; the distances between the center lines of the drill holes and the center line of the ammonia still body are 45cm; the distance between two adjacent drill holes is 40cm; the drill holes are staggered; the diameters of the drill holes are 2cm; a shower nozzle extends inside the ammonia still body; the ammonia still body is cleaned by high-pressure water; the water pressure is 2-60MPa; a screw tap is adopted to tap after cleaning is finished; an end cap is added to seal. The original structure of equipment is not destroyed by the cleaning method, so that the overhaul cost is saved, and the maintenance efficiency is improved, so as to strive to thoroughly clean the inside of the ammonia still. Thus, the ammonia still equipment restores the service as soon as possible, the requirements of the production technology can be met, a tower plate is cleaned through the nozzle, a solid scale is scattered to form small particles, and the ammonia still does not need to be cleaned after being dismantled. Therefore, the internal cleaning method is convenient to use.
Description
Technical field
The present invention relates to a kind of purging method, a kind of particularly internal washing method of ammonia still, belongs to the industry-specific construction equipment technical field of metallurgical coking.
Background technology
In coking industry, general casting tower---the ammonia still that adopts, processes ammoniacal liquor at present, distillation ammonia.My company adopts highly approximately 20 meters, heavily approximately 70 tons of column sealed tower bodies, and inner 32 layers of column plate, every layer of column plate has 59 place's bubble-cap heads.Its technological principle is to pass into from tower middle part with high-temperature steam, bubble-cap through every layer of column plate spreads to tower top, simultaneously, through every layer of column plate, the drain gully from column plate trickles downwards ammoniacal liquor in tower top enters tower, when high-temperature steam and ammoniacal liquor meet at column plate place, distillation forms ammonia, is sent to ammonia destruction furnace combustion decomposition from tower top through cooling, ammoniacal liquor after ammonia still process becomes distilled ammonia wastewater to be extracted out by pump, is sent to follow-up workshop section and processes.In the time of ammoniacal liquor process column plate, can on column plate, retain the solid waste of being mixed by tar, Jiao Li etc., through using for many years, on column plate, incrustation is more and more, stops up gradually the vapour outlet of bubble-cap, causes ammonia distillation amount significantly to reduce, ammoniacal liquor flow shakiness, the pumping unit failure rate of processing distilled ammonia wastewater raises, and ammonia still column plate is badly in need of cleaning, to improve ammonia still process efficiency.
summary of the invention
For above-mentioned technical problem, the object of the present invention is to provide a kind of ammonia still internal washing method, making ammonia still column plate, bubble-cap, inwall etc. locate incrustation thoroughly removes, do not remove on the one hand existing equipment, do not change device structure, saving equipment is removed dress expense and spare parts expense, shortens on the other hand the repair time, guarantees that ammonia still comes into operation within the shortest time.
The technical solution used in the present invention is:
The internal washing method of ammonia still, comprises the steps:
A, be respectively equipped with boring in tower body medullary ray arranged on left and right sides, the interlaced arrangement of boring of arranged on left and right sides, 45 centimetres of the medullary ray of boring and tower body centreline spacings, 40 centimetres of spacing between adjacent boring, staggered boring, borehole diameter is 2 centimetres;
B, cleaning, put in tower body with shower nozzle, uses high pressure water cleaning tower body, and water flow pressure is 2-60Mpa;
C, sealing, after having cleaned, adopt tap tapping, adds plug sealing.
The internal washing method of above-mentioned ammonia still, wherein, shower nozzle comprises head body, described head body is right cylinder, is provided with vertically through hole in described head body, and one end of described head body is provided with spray orifice vertically, the other end is connected with spray gun, and described spray gun communicates with described through hole; The outer wall both sides of described head body are respectively equipped with nozzle assembly, and the nozzle assembly of described head body both sides is symmetrical.
The internal washing method of above-mentioned ammonia still, wherein, described nozzle assembly comprises the first nozzle, the second nozzle that are arranged on described head body outer wall, nozzle diameter 0.3mm, described first, second nozzle is " eight " font and distributes, and between the medullary ray of described the first nozzle and the medullary ray of second nozzle, is provided with angle α, and described angle α is 150 °, between the medullary ray of described the first nozzle and described head body axis, be provided with angle β, described angle β is 15 °; Between the medullary ray of described second nozzle and described head body axis, be provided with angle γ, described angle γ is 165 °.
Beneficial effect of the present invention:
Due to this purging method, adopt and do not destroy equipment original structure, save recondition expense, improve the method for overhaul efficiency, make every effort to clean thoroughly in tower, make ammonia still equipment recover as early as possible to use, and can meet manufacturing technique requirent; And by shower nozzle, column plate is cleaned, solid incrustation is broken up, become the particle that volume is very little, do not need, by cleaning again after ammonia still dismounting, therefore, to use more convenient; In addition, because described nozzle assembly comprises the first nozzle, the second nozzle that are arranged on described head body outer wall, described first, second nozzle is " eight " font and distributes, and between the medullary ray of described the first nozzle and described head body axis, is provided with angle β, and described angle β is 15 °; Between the medullary ray of described second nozzle and described head body axis, be provided with angle γ, described angle γ is 165 °, can make the every nook and cranny in ammonia still all capable of washing, avoids producing dead angle therefore, cleans more thorough; Moreover the inner peripheral surface of the one end being connected with spray gun due to described head body is provided with screw thread, can make shower nozzle be connected with spray gun more firm, keep stable water pressure.
Accompanying drawing explanation
Fig. 1 is the structural representation of ammonia still in the present invention.
Fig. 2 is the structural representation of shower nozzle of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is made and being further illustrated.
The internal washing method of boring ammonia still, comprises the steps:
A, be respectively equipped with boring 11 in tower body 10 medullary ray arranged on left and right sides, the interlaced arrangement of boring 11 of arranged on left and right sides, boring 11 medullary ray and 45 centimetres of tower body 10 centreline spacings, 40 centimetres of spacing between adjacent boring 11,11 diameters of holing are 2 centimetres; Holing 11 positions must be between two-layer column plate 12 and as far as possible near column plate 12, so that cleaning current be taken away incrustation on column plate 12.Boring 11 location are extremely important, first determine tower body and column plate center, guarantee to clean current and flow out from column plate drain gully.For guaranteeing cleaning performance, every layer of column plate holed two, and relative spacing should be maximum diameter on the same periphery of tower body, holes so that tower body medullary ray is symmetrical at tower body pros and cons.Hole altogether approximately 60.
B, cleaning, put in tower body with shower nozzle, uses high pressure water cleaning tower body, and water flow pressure is 2-60Mpa; Hole complete, shower nozzle is put in tower, in high pressure water cleaning tower.This shower nozzle has 4, multiple angles nozzle, can spray pressure 2---60Mpa current, comprehensive cleaning column plate, bubble-cap etc.Inside, two holes is cleaned in turn, every approximately 2 hours.Clean completely, can put in and in tower, check cleaning performance with the interior camera of peeping.
C, sealing, after having cleaned, adopt tap tapping, adds plug sealing.After cleaning performance is satisfied, must tower body be holed and be sealed.Adopt tap tapping, add plug sealing, and do rotproofing, with anti-leak.Shower nozzle comprises head body 1, and described head body 1 is right cylinder, in described head body 1, is provided with vertically through hole 2, and one end of described head body 1 is provided with spray orifice 3 vertically, and the other end is connected with spray gun, and described spray gun communicates with described through hole 2; The aperture that spray orifice 3 is 0.3mm, water flow energy keeps high pressure to spray from aperture, and the outer wall both sides of described head body 1 are respectively equipped with nozzle assembly 5, and the nozzle assembly 5 of described head body 1 both sides is symmetrical.The inner peripheral surface of described through hole 2 is provided with step, owing to being provided with step in described through hole 2, can make shower nozzle be connected with spray gun more firm, keeps stable water pressure.Described nozzle assembly 5 comprises the first nozzle 51, the second nozzle 52 that are arranged on described head body 1 outer wall, nozzle diameter 0.3mm, described first, second nozzle 51,52 is " eight " font and distributes, between the medullary ray of the medullary ray of described the first nozzle 51 and second nozzle 52, be provided with angle α, described angle α is 150 °, between the medullary ray of described the first nozzle 51 and described head body 1 axis, be provided with angle β, described angle β is 15 °; Between the medullary ray of described second nozzle 52 and described head body 1 axis, be provided with angle γ, described angle γ is 165 °, can make the every nook and cranny in ammonia still all capable of washing, avoids producing dead angle therefore, cleans more thorough.More firm in order to connect, the inner peripheral surface of the one end that can be connected with spray gun in head body 1 is provided with screw thread.Head body 1 adopts steel alloy Cr 67 materials to make, and external diameter is 16mm, and long is about 6cm, and the diameter of through hole 2 is 14mm.Spray orifice 3 can bear the operating pressure of 2Mp-25Mp.When cleaning, the barral of a gun of left rotation and right rotation spray gun, utilizes nozzle to spray the High-Pressure Water of multiply different angles, and multi-faceted flushing incrustation, makes its loosening breaking, and volume reduces, and finally becomes particulate state, just can discharge with current.
The description of above embodiment is comparatively concrete, detailed; but can not therefore be interpreted as the restriction to this patent scope; it should be noted that; for the person of ordinary skill of the art; without departing from the inventive concept of the premise; can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (3)
1. the internal washing method of ammonia still, is characterized in that, comprises the steps:
A, be respectively equipped with boring in tower body medullary ray arranged on left and right sides, the interlaced arrangement of boring of arranged on left and right sides, 45 centimetres of the medullary ray of boring and tower body centreline spacings, 40 centimetres of spacing between adjacent boring, staggered boring, borehole diameter is 2 centimetres;
B, cleaning, put in tower body with shower nozzle, uses high pressure water cleaning tower body, and water flow pressure is 2-60Mpa;
C, sealing, after having cleaned, adopt tap tapping, adds plug sealing.
2. the internal washing method of ammonia still as claimed in claim 1, it is characterized in that, shower nozzle comprises head body, described head body is right cylinder, in described head body, be provided with vertically through hole, one end of described head body is provided with spray orifice vertically, and the other end is connected with spray gun, and described spray gun communicates with described through hole; The outer wall both sides of described head body are respectively equipped with nozzle assembly, and the nozzle assembly of described head body both sides is symmetrical.
3. the internal washing method of ammonia still as claimed in claim 2, it is characterized in that, described nozzle assembly comprises the first nozzle, the second nozzle that are arranged on described head body outer wall, nozzle diameter 0.3mm, described first, second nozzle is " eight " font and distributes, between the medullary ray of described the first nozzle and the medullary ray of second nozzle, be provided with angle α, described angle α is 150 °, between the medullary ray of described the first nozzle and described head body axis, be provided with angle β, described angle β is 15 °; Between the medullary ray of described second nozzle and described head body axis, be provided with angle γ, described angle γ is 165 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310685497.0A CN103771453B (en) | 2013-12-16 | 2013-12-16 | The internal washing method of ammonia still |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310685497.0A CN103771453B (en) | 2013-12-16 | 2013-12-16 | The internal washing method of ammonia still |
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| Publication Number | Publication Date |
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| CN103771453A true CN103771453A (en) | 2014-05-07 |
| CN103771453B CN103771453B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310685497.0A Expired - Fee Related CN103771453B (en) | 2013-12-16 | 2013-12-16 | The internal washing method of ammonia still |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108356013A (en) * | 2018-02-08 | 2018-08-03 | 瓮福达州化工有限责任公司 | A kind of cleaning plant and method for cleaning of plate ring tower |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201314062Y (en) * | 2008-10-13 | 2009-09-23 | 唐锦贤 | Water tower with inner wall cleaning device |
| FR2975312A1 (en) * | 2011-05-19 | 2012-11-23 | Bernard Poulet | Cleaning, descaling and disinfecting method for e.g. wine barrel, involves completing cleaning of barrel by germicidal ultrasonic or UV-C rays, and performing rinsing and draining, sulfur dioxide blanketing and watertight closing of barrel |
| CN202683038U (en) * | 2012-07-18 | 2013-01-23 | 山东润银生物化工股份有限公司 | Ammonia washing tower with spray nozzle spraying in form of fog |
-
2013
- 2013-12-16 CN CN201310685497.0A patent/CN103771453B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201314062Y (en) * | 2008-10-13 | 2009-09-23 | 唐锦贤 | Water tower with inner wall cleaning device |
| FR2975312A1 (en) * | 2011-05-19 | 2012-11-23 | Bernard Poulet | Cleaning, descaling and disinfecting method for e.g. wine barrel, involves completing cleaning of barrel by germicidal ultrasonic or UV-C rays, and performing rinsing and draining, sulfur dioxide blanketing and watertight closing of barrel |
| CN202683038U (en) * | 2012-07-18 | 2013-01-23 | 山东润银生物化工股份有限公司 | Ammonia washing tower with spray nozzle spraying in form of fog |
Non-Patent Citations (3)
| Title |
|---|
| 李如福: "管道机械清洗", 《化学清洗》, no. 1, 31 January 1989 (1989-01-31), pages 17 - 19 * |
| 邵文航: "高压水射流清洗技术在纯碱工业中的应用", 《纯碱工业》, no. 3, 31 December 2004 (2004-12-31), pages 39 - 40 * |
| 陆震维等: "化工装置清洗技术现状和展望", 《化工进展》, no. 4, 31 December 1992 (1992-12-31) * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108356013A (en) * | 2018-02-08 | 2018-08-03 | 瓮福达州化工有限责任公司 | A kind of cleaning plant and method for cleaning of plate ring tower |
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| CN103771453B (en) | 2016-01-20 |
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| C06 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
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Address after: 212211 Dantu Economic Development Zone, Zhenjiang, Jiangsu Patentee after: SINOCHEM ZHENJIANG COKING CO., LTD. Address before: 212114 Gao Zhen, Dantu Economic Development Zone, Zhenjiang, Jiangsu Patentee before: Sinochem Zhenjiang Coking Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160120 Termination date: 20181216 |