CN2796809Y

CN2796809Y - Liquid agitating type saturation apparatus

Info

Publication number: CN2796809Y
Application number: CN 200520091316
Authority: CN
Inventors: 杨永复
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-06-16
Filing date: 2005-06-16
Publication date: 2006-07-19
Anticipated expiration: 2015-06-16

Abstract

The utility model relates to a liquid agitating type saturator. The utility model is characterized in that the utility model is composed of an upper part and a lower part which are communicated through a tapered filler provided with a downcast pipe. The liquid agitating type saturator is made of diluted sulfuric acid proof stainless steels 316L. The upper part of the liquid agitating type saturator is provided with three concentric barrel bodies which are an outer barrel body, an inner barrel body and a coal gas outlet pipe. The side wall of an annular space of the outer barrel body and the inner barrel body is provided with an angle-shaped liquid guide strip. The upper part of the annular space is provided with a half annular mother liquid tank. The bottom of the half annular mother liquid tank is provided with a nozzle for spraying the coal gas. A coal gas inlet of the saturator and a coal gas ascending channel of the saturator are respectively provided with warm water spraying devices. The warm water spraying device is composed of a pipeline and a bow-shaped convex dish of the pipe end. The utility model creates required conditions for producing sulfur ammonium with large granules, has the advantages of good product quality and large granules, enhances recovery rate of ammonium in the coal gas, increase yield of the sulfur ammonium, reduces consumption and avoids occurrence of casualty accident of human bodies by adopting the measures for preventing sliding and falling.

Description

The liquid stirring type saturator

Technical field

The utility model relates to the capital equipment that a kind of ammonia in coke-oven plant's ammonium sulfate workshop section recovery coal gas is produced the sulphur ammonium, particularly a kind of liquid stirring type saturator.

Background technology

At present, domesticly produce the sulphur ammonium with saturator two kinds of intumescence umbrella formula and fountains are arranged, intumescence umbrella formula saturator is the equipment of the production sulphur ammonium that began to adopt before the thirties, it exist the saturator resistance big (6000～7000Pa), increased problems such as power consumption, the equipment of air blast is perishable, with short production cycle, because frequent maintenance has brought difficulty to production management, to drop into a large amount of human, financial, and material resources power during overhaul of the equipments, the expense height, finished product sulphur ammonium particle is little, free acid is high, granule sulphur ammonium easily lumps in air, be difficult to carry out mechanized application, waste also many.Spray Saturator is the equipment that begins the production large-particle ammonium sulfate that adopts the end of the fifties abroad, its feature is saturator resistance little (being not more than 1000Pa), reduced the power consumption of air blast, the manufacturing of the whole employing of equipment acid-resistant stainless steel, life cycle is grown, has made things convenient for production management, has been reduced recondition expense.In the latter stage eighties, Anshan iron and steel plant has at first introduced Spray Saturator equipment from the Ma Linuo coke-oven plant of France and technology is used for Anshan iron and steel plant chemical general factory ammonium sulfate workshop section.The coke-oven plant of China produces the sulphur ammonium history of existing more than ten years with Spray Saturator, but because domestic coke-oven plant and different, domestic each coke-oven plant's ammonium sulfate workshop section design of external working condition of the same trade, the factor affecting such as gap on the production management level, Spray Saturator equipment in design, make, and use and expose some agricultural technology problems, because the generation of these problems often makes coke-oven plant's ammonium sulfate workshop section saturator unit not run well, impel the ammonia in the coal gas can not in time obtain reclaiming, even cause crude benzol operation distillation equipment to be subjected to the ammonium salt heavy corrosion.These problems are: 1, the inherent mother liquor crystalline substance of saturator bottom cylindrical shell easy deposition sulphur crystalline ammonium when big causes that the downcomer outlet port place stops up; 2, have sulphur crystalline ammonium sedimentation dead band, the sulphur crystalline ammonium at saturator end socket place can not be extracted in the crystallization dump tank above the centrifuge fully, influences sulphur ammonium output; 3, the upper and lower two-part acid tar oil of saturator can not discharge preferably, the mother liquor stream that also can cause the circulated sprinkling use is to being short-circuited, make downcomer outlet port go out the mother liquor flow velocity and descend, the ability drop that mother liquor upwards suspends influence that the sulphur crystalline ammonium is grown up, product quality decline; 4, the mother liquor service efficiency of circulated sprinkling coal gas is low, and the mother liquor of circulated sprinkling coal gas can not make full use of, and has both influenced the recovery of ammonia in the coal gas, has also wasted the energy; 5, the warm water spreader nozzle easily stops up, moisturizing difficulty when causing saturator sour greatly, and cleaning can not be carried out; 6, coal gas is logical in saturator upper shell annular, the road is little by time space, need select the systemic circulation pump for use, sprays coal gas with increasing the Recycling Mother Solution spray flux, has increased engineering investment cost, has wasted the energy.

Summary of the invention

The utility model has overcome the problem of above-mentioned existence, and purpose provides the capital equipment liquid stirring type saturator that a kind of ammonia in coke-oven plant's ammonium sulfate workshop section recovery coal gas is produced the sulphur ammonium.

The utility model liquid stirring type saturator content Description:

The utility model liquid stirring type saturator is characterized in that: be made up of upper and lower two parts, by the conical hopper connection of band downspout, the whole stainless steel of anti-dilute sulfuric acid 316L that adopts of liquid stirring type saturator makes; Three concentric cylindrical shells are arranged on the top of liquid stirring type saturator, be outer cylinder body, inner barrel and gas outlet tube, on the sidewall of outer cylinder body and inner barrel annular space, the dihedral diversion belt is set, the top of annular space is provided with semi-circular mother liquor case, is provided with the nozzle that spray coal gas is used at the bottom of semi-circular mother liquor case case; On the 30 ° of conical bottom liquid levels in liquid stirring type saturator top, the sidewall of outer cylinder body is provided with mother liquor, acid tar oil blender, and the liquid stirring type saturator is provided with a safe baffle ring above 30 ° of conical bottom and downspout junction, and downspout inserts the bottom of lower shell; The bottom of liquid agitation device is tangential passage, is arranged on below the downcomer outlet port place horn mouth, and the liquid jet agitating device is arranged on the top of end socket, is made of mother liquor pipeline and connected mother liquor injector; Liquid stirring type saturator bottom is to be made of a concentric lower shell and ellipsoidal head, the sulphur crystalline ammonium is set in the bottom of saturator lower shell extracts the mouth of pipe, the outlet of circulated sprinkling mother liquor, mother liquor to heater outlet; Saturator top is provided with the flowing full pipe that is communicated with the saturator bottom, and this pipe is communicated with the flowing full groove of saturator outside; At saturator gas entry place and saturator coal gas rising passway place the warm water flusher is set respectively, the warm water flusher is made up of the arc protruding dish of pipeline and pipe end; At coal gas rising passway top, saturator top a mother liquor spray inlet tube is set also, manhole is set on saturator bottom, middle part and top.

The power of the utility model liquid stirring type saturator agitating device comes from the suction of systemic circulation mother liquor pump, help sulphur ammonium nuclei growth in the mother liquor, can also eliminate and be deposited on the formation obstruction of saturator bottom after sulphur crystalline ammonium come-up is grown up, also helping the crystallization pump extracts in the crystallization dump tank of sulphur crystalline ammonium above centrifuge fully, improved the mother liquor quality of circulated sprinkling, very favourable to the recovery of ammonia in the coal gas.The large-particle ammonium sulfate that descends after the liquid agitation device can prevent to float is deposited on the saturator bottom and has eliminated sulphur crystalline ammonium deposition dead band, also help the crystallization pump and extract the sulphur crystalline ammonium fully, helping nucleus grows up fast, created necessary conditions for the production large-particle ammonium sulfate, good product quality, particle are big, the rate of recovery, increase sulphur ammonium output, the minimizing that improve ammonia in the coal gas consume, also can make the saturator unit out of servicely eliminate sulphur ammonium sedimentation state rapidly when driving again, make the saturator unit recover normal operation within a short period of time long-time.The utility model has adopted the anti-slip measure, avoids the generation of human casualty accident.

Description of drawings

Fig. 1 is a liquid stirring type saturator overall structure schematic diagram

Fig. 2 is a dihedral diversion belt structure chart

Fig. 3 is the liquid agitation structure drawing of device

Fig. 4 is a liquid jet agitating device structure chart

Fig. 5 is mother liquor, acid tar oil mixer structure figure

Fig. 6 is a warm water flusher structure chart

The specific embodiment

The utility model liquid stirring type saturator is achieved in that to do below in conjunction with accompanying drawing and specifies.See Fig. 1, the liquid stirring type saturator is made up of upper and lower two parts, and by the conical hopper connection of band downspout, the whole stainless steel of anti-dilute sulfuric acid 316L that adopts of liquid stirring type saturator makes no liner.Three concentric cylindrical shells are arranged on the top of liquid stirring type saturator, be outer cylinder body 1, inner barrel 2 and gas outlet tube 3, coke-stove gas can enter the outer cylinder body 1 of saturator and the annular space between the inner barrel 2 without preheating, by the acid ammonium sulfate liquor spray that the pumping of systemic circulation mother liquor comes, ammonia and sulfuric acid in the coal gas react at this.See Fig. 2, on the sidewall of outer cylinder body 1 and inner barrel 2 annular spaces, dihedral diversion belt 4 is set, pass the water curtain that the mother liquor of spray on sidewall met 4 formation of dihedral diversion belt after making the coal gas that enters meet 4 break-ins of dihedral diversion belt, coal gas behind the circulating mother liquor spray is concentrated along passage at an end of annular space and is risen, enter space between inner barrel and the gas outlet tube along horizontal tangent shape passage again, rotation moves downward, and leaves the liquid stirring type saturator to crude benzol workshop section through gas outlet tube 3.Because the effect of cyclonic separation, the ammonium sulfate liquor drop of carrying secretly in the coal gas is in this space sedimentation, fall on the conical hopper liquid level, therefore the space between inner barrel 2 and the gas outlet tube 3 plays a part acid separator, the top of the annular space that coal gas passes through is provided with semi-circular mother liquor case 5, be provided with the nozzle 6 that spray coal gas is used at the bottom of semi-circular mother liquor case 5 casees, the mother liquor that the pumping of systemic circulation mother liquor comes sprays by the 6 pairs of coal gas that pass through of nozzle that are arranged on lower box part in semi-circular mother liquor case 5.Through with mother liquor that coal gas contacts in contain a large amount of sulphur ammonium nucleus, fall on 30 ° of conical bottom liquid levels, downspout 7 through connecting conical bottom flow in the lower shell 11 of liquid stirring type saturator bottom, one safe baffle ring 8 is set above 30 ° of conical bottom and downspout 7 junctions, with prevent to check, attendant's landing falls in the cylindrical shell of liquid stirring type saturator bottom, can also prevent that bulk materials from falling into liquid stirring type saturator bottom and causing to form in the downspout 7 outlet liquid agitation devices 9 and stop up.The bottom that downspout 7 inserts lower shell 11, the lower shell liquid agitation is made of with the liquid jet agitating device 10 that is arranged on end socket 12 peripheries the liquid agitation device 9 of downcomer outlet port, see Fig. 3, the bottom of liquid agitation device 9 is tangential passages, be arranged on below the downspout horn mouth, under systemic circulation mother liquor pump swabbing action, the mother liquor of tangential passage is made the rotation come-up along periphery and is moved in end socket, nucleus in the mother liquor descends in upwards the float back of growing up of rotation, continues to rotate to be present in liquid stirring type saturator bottom.See Fig. 4, liquid jet agitating device 10 is arranged on the top of end socket 12, constitute by mother liquor pipeline 23 and connected mother liquor injector 22, liquid jet agitating device 10 is to go out a part of mother liquor by systemic circulation mother liquor pump discharge pipe pass, under the pressure effect of pump, make partial mother liquid make peripheral fierceness and rotatablely move at lower shell end socket 12 places.Liquid jet continues to be present in the saturator bottom to revolve floating state after stirring the crystal growth can make in the mother liquor, is beneficial to the crystallization pump and fully extracts ammonium sulfate liquor and deliver in the crystallization dump tank on centrifuge top.The saturator bottom is to be made of a concentric cylindrical shell and ellipsoidal head, during normal running, the saturator bottom has been full of the low concentration ammonium sulfate liquor, the 30 ° of conical hopper downspouts in saturator top flow in the mother liquor of saturator bottom and contain a large amount of sulphur crystalline ammoniums, and crystallization is done in saturator lower shell 11 and produced large particle crystal in tangential rotation, come-up, the descending motion and separate out from mother liquor under saturation state.Therefore, the saturator lower shell is actually a sulphur crystalline ammonium groove.By stirring, not only favourable sulphur ammonium particle is grown up at saturator bottom mother liquor, has also avoided part sulphur crystalline ammonium to be deposited on the saturator bottom, and helps the crystallization pump and fully extract the sulphur ammonium.By technological process the sulphur crystalline ammonium need be set in the saturator bottom and extract the mouth of pipe 13, circulated sprinkling mother liquor outlet 14, mother liquor to heater outlet 15; Saturator top is provided with the flowing full pipe 16 that is communicated with the saturator bottom, and this pipe is communicated with the flowing full groove of saturator outside.During ordinary production, flowing full pipe 16 is used for keeping saturator top mother liquor liquid level and discharges acid tar oil in the lower shell 11, mother liquor to the flowing full groove, see Fig. 5, on the 30 ° of conical bottom liquid levels in liquid stirring type saturator top, mother liquor, acid tar oil blender 17 are set on the sidewall of outer cylinder body (1), the floating acid tar oil in saturator top passes through mother liquor, acid tar oil blender 17, delivers in the flowing full groove through top tar outlet 24.There are some sulphur crystalline ammoniums or tar to amass on saturated wall in process of production or in the passage, need use warm water washing simultaneously in the sour greatly moisturizing of saturator.Therefore, at saturator gas entry 18 places and saturator coal gas rising passway place warm water flusher 19 is set respectively, see Fig. 6, warm water flusher 19 is made up of the arc protruding dish 26 of pipeline 25 and pipe end.Stable in order to control in the saturator mother liquor acidity, in continuously by head tank, add the concentrated sulfuric acid of acidity 78% in, also continue to add the mother liquor of the acidity 8～10% for preparing in the mother liquid tank to saturator.Therefore, a mother liquor spray inlet tube 20 also is set, manhole 21 is set on saturator bottom, middle part and top at coal gas rising passway top, saturator top.

Claims

1, a kind of liquid stirring type saturator is characterized in that: be made up of upper and lower two parts, by the conical hopper connection of band downspout, the whole stainless steel of anti-dilute sulfuric acid 316L that adopts of liquid stirring type saturator makes; Three concentric cylindrical shells are arranged on the top of liquid stirring type saturator, be outer cylinder body (1), inner barrel (2) and gas outlet tube (3), on the sidewall of outer cylinder body (1) and inner barrel (2) annular space, dihedral diversion belt (4) is set, the top of annular space is provided with semi-circular mother liquor case (5), is provided with the nozzle (6) that spray coal gas is used at the bottom of semi-circular mother liquor case (5) case; On the 30 ° of conical bottom liquid levels in liquid stirring type saturator top, mother liquor, acid tar oil blender (17) are set on the sidewall of outer cylinder body (1), in interior 30 ° of conical bottom of liquid stirring type saturator lower shell (11) and top, downspout (7) junction one safe baffle ring (8) is set, downspout (7) inserts the bottom of lower shell (11); The bottom of liquid agitation device (9) is tangential passage, be arranged on below the horn mouth of downspout (7) exit, liquid jet agitating device (10) is arranged on the top of end socket (12), and liquid stirring type saturator bottom is to be made of a concentric lower shell (11) and ellipsoidal head (12); Locate and coal gas rising passway place is provided with warm water flusher (19) respectively at liquid stirring type saturator gas entry (18).

2, liquid stirring type saturator according to claim 1 is characterized in that: described liquid jet agitating device (10) is to be made of mother liquor pipeline (23) and connected mother liquor injector (22).

3, liquid stirring type saturator according to claim 1 is characterized in that: the sulphur crystalline ammonium is set in the bottom of described lower shell (11) extracts the mouth of pipe (13), circulated sprinkling mother liquor outlet (14), mother liquor to heater outlet (15); Liquid stirring type saturator top is provided with the flowing full pipe (16) that is communicated with the bottom, and this pipe is communicated with the flowing full groove of liquid stirring type saturator outside.

4, liquid stirring type saturator according to claim 1 is characterized in that: described warm water flusher (19) is made up of the arc protruding dish (26) of pipeline (25) and pipe end.

5, liquid stirring type saturator according to claim 1, it is characterized in that: a mother liquor spray inlet tube (20) also is set at coal gas rising passway top, liquid stirring type saturator top, manhole (21) is set on liquid stirring type saturator bottom, middle part and top.