CN202666688U - Top shower self-priming regeneration tower - Google Patents
Top shower self-priming regeneration tower Download PDFInfo
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- CN202666688U CN202666688U CN 201220121624 CN201220121624U CN202666688U CN 202666688 U CN202666688 U CN 202666688U CN 201220121624 CN201220121624 CN 201220121624 CN 201220121624 U CN201220121624 U CN 201220121624U CN 202666688 U CN202666688 U CN 202666688U
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- regenerator
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Abstract
The utility model discloses a top shower self-priming regeneration tower which comprises a tower body and a self-priming spray regenerator. A foam separator and a foam collecting weir are arranged inside the tower body. The foam collecting weir is placed between the foam separator and the tower top. The self-priming spray regenerator is inserted into the tower body and a liquid outlet of the self-priming spray regenerator is placed between the foam separator and the tower bottom. A sulfur foam delivery pipe is arranged in the tower body which is between the foam collecting weir and the tower top. A regenerating waste gas outlet pipe is arranged at the top of the tower. The liquid outlet of the self-priming spray regenerator is communicated with a liquid delivery pipe. The top shower self-priming regeneration tower is low in material consumption. Compared with a one tower type desulfurization device, the steel consumption quantity of the top shower self-priming regeneration tower is decreased by 20% to 30%. Compared with a high tower regenerator device, the top shower self-priming regeneration tower is low in operation power, circulating pump pressure is reduced by a half, and a dedicated air compressor is saved. The top shower self-priming regeneration tower is low in cost of operation power, stable in regulation of desulfurization operation, easy to regulate desulfurization operation, high in desulfurization efficiency and slow in side reaction salt formation.
Description
Technical field
The utility model relates to the process of desulfurizing gases device, is specifically related to the self-priming regenerator of a kind of top spray.
Background technology
The Wet Catalytic Oxidation Method desulfurization and decyanation technology of gas must comprise hydrogen sulfide absorption tower and desulphurization circulating liquid oxidation regenerator.At present, the desulfurization and decyanation technology device of domestic Coal Chemical Industry industry has three types.
The first type is traditional two-tower type device, is a desulfuration absorbing tower and a regeneration of waste liquor high tower, and regenerator is than desulfurization tower height 15～18m, and regeneration overhead is provided with the solution enlarging section and separates the enlarging section with the sulphur bubble.The isolated solution of cat head utilizes high-order pressure reduction to flow automatically on the solution distributing pipe at desulfuration absorbing tower top through liquid level regulator, padding washing coal gas in the spray column.The sulfur removing pregnant solution that flows down from desulfuration absorbing tower passes through liquid seal trough, reactive tank, being pressed into the regenerator bottom with solution circulation pump with 5～6MPa pressure at last mixes with compressed air, gas-liquid enters the cat head enlarging section from bottom to top and finishes bubble separation and separate with solution, solution flows into the desulfurizing tower circulation desulfurization through liquid level regulator, and the sulphur bubble is drawn from the enlarging section.High tower regenerative response regional area at the bottom of tower occurs, and owing to the head of liquid reason, two-phase is difficult to form decentralized photo when making gas-liquid up, thereby two-phase haptoreaction weak effect.Solution and bubble separation are only carried out in the cat head enlarging section, and disengaging time only has a few minutes.In addition, because operation gas liquid ratio Imbalance easily causes cat head bubbling accident.
The second type be a tower one groove-type device of slot type regeneration, be that desulfuration solution replaces high tower regeneration with slot type regeneration, replace compressed air with self-priming jet regeneration device.Except configuration rich solution regenerative pump, also increase the lean solution circulating pump.High 7～the 8m of regeneration tank, cell body maximum gauge are 1.4 times of desulfurizing tower diameter, are equivalent to enlarging section, regenerator top, and the barrel support section that cancels in other words conj.or perhaps regenerator keeps the cat head enlarging section.Self-priming injection regenerator is inserted at the regeneration tank top, and its bottom is apart from bottom land 600～1000mm.Rich solution pump 7 is pressed into the jet regeneration device with 0.30～0.35MPa pressure with sulfur removing pregnant solution B to be mixed with the air of suction, finishes regenerative response within the short time of regenerator.Fully disperse from reactant liquor and the bubble of regenerator ejection, air supporting goes out the sulphur bubble in uphill process, and the sulphur bubble diffuses in the Ji Pao weir on upper strata and derives outside the groove.Solution imports the lean solution groove outside the liquid level regulator spout.Its technological advantage is to utilize self-priming injection regenerator, and air fully mixes with solution, regenerative response, and its shortcoming is that solution and sulphur bubble disengaging time are abundant not, the suspension sulfur content is higher in the solution.In addition, the regeneration tank absolute altitude hangs down regeneration off gases exhaust emission environment, and when adopting especially ammonia to make alkali source, dispersing gas contains ammonia makes ecological deterioration.
The third type is a tower device, and a tower is divided into two sections, and epimere is the regeneration of waste liquor groove, hypomere is desulfurizing tower, cuts off with the sphere steel plate between two sections, and be that desulfurizing tower and regeneration tank integrate, regeneration tank is placed on the desulfurization cat head, its objective is and save lean pump and reduce by a tower foundation position.The iris type fluid-tight is set in solution tank at the bottom of the desulfurizing tower in addition, saves liquid seal trough and circulating slot.Solution circulation pump directly aspirates at the bottom of the tower solution and is pressed into each jet regeneration device of cat head, and solution is isolated the sulphur bubble after the reaction in regeneration tank, solution in being located at groove liquid level regulator and oneself flows into each nozzle spraying filler of desulfurization cat head of hypomere the communicating pipe groove outside.Coal gas enters at the bottom of tower, goes out tower to cat head.Uply pass through 3～4 layers of filler and descending desulfuration solution convection current, hydrogen sulfide is absorbed.The solution that flows at the bottom of the tower enters solution tank at the bottom of the tower through fluid-tight isolation coal gas.Therefore, a tower device advantage is that System planes arranges succinct neat, and occupation of land reduces, recycle liquid pump of a system configuration.But since with two at all independently equipment be superimposed upon on the tower position, need to improve the desulfurization tower body to the support strength of regeneration tank operation gross weight, increased whole tower height degree and weight, whole tower height degree is 45～47m, wherein the regeneration tank height is 6～7m, and the desulfurizing tower height is 34m.Rich solution regenerative pump pressure requires greater than 75～80m.Therefore, the pressure size directly has influence on the regenerative response effect of jet regeneration device behind the pump, and the shortcoming of regeneration tank is retained.Key problem in technology is that solution and sulphur bubble disengaging time are abundant not, and the desulfurization absorption reaction time is also abundant not, thereby solution suspension sulphur is many, and circulation solution is unintelligible, and nozzle and filler easily stop up.
Above three kinds of described desulfurization regeneration equipment, common shortcoming are that the sulphur bubble is insufficient with the solution disengaging time, and solution interface is unintelligible, and the reaction time is short.The shortcoming of regenerator is that air and solution are pressed at the bottom of the tower behind the premixed device, gas-liquid two-phase from the bottom of the tower to the cat head enlarging section because the head of liquid effect can not be kept good dispersion, more easily form continuous phase, therefore actual oxidation conversion zone is very little.After sulphur bubble and solution enter the cat head enlarging section, be that slot type or tower device all show the inadequate shortcoming of disengaging time.
The utility model content
Goal of the invention: for the deficiencies in the prior art, the purpose of this utility model provides the self-priming regenerator of a kind of top spray, to realize the oxidation in regenerator of the mother solution behind the desulfurizing tower washing absorption, make catalyst change into oxidation state by reduction-state, and with the hydrogen sulfite ion oxidation that absorbs, form elemental sulfur and separate from solution with sulphur foam method formula, make sulfur removing pregnant solution be transformed into lean solution, recover desulfuration solution to the circulation absorbability of hydrogen sulfide.
Technical scheme: in order to realize the foregoing invention purpose, the technical solution adopted in the utility model is as follows:
The self-priming regenerator of a kind of top spray comprises tower body and self-priming injection regenerator; Foam separator and Ji Pao weir are set in tower body; Described Ji Pao weir is located between foam separator and the cat head; Described self-priming injection regenerator inserts in the tower body, makes between the taphole of self-priming injection regenerator is at the bottom of foam separator and the tower; Tower body between Ji Pao weir and cat head is provided with sulphur bubble delivery line; Be provided with the regeneration off gases discharge pipe at cat head; The taphole of described self-priming injection regenerator links to each other with the solution delivery line.
Described foam separator comprises funnel shaped conical shell, is provided with the not identical concentric locking collar cone of several diameters in conical shell, leaves the foam passage between the concentric locking collar cone.
Described self-priming injection regenerator is located at top, side or the bottom of tower.
Described Ji Pao weir is located on the inwall of tower body, and shape is frustum, and base diameter is large, upper diameter is little.
Described solution delivery line is " Π " shape pipe.
In described regeneration off gases discharge pipe and cat head be equipped with for the shower nozzle of cleaning waste gas and froth breaking.
The self-priming regenerator of top spray of the present utility model is different from present regeneration tank and a tower regeneration tank, and regenerating unit of the present utility model is a kind of tower device, and the Fluid Flow in A time is longer more than one times than slot type.Foam separates the employing foam separator, and slot type regeneration is to reduce flow velocity after relying on solution to enter the enlarging section, along with the prolongation of time, the separative efficiency of foam separator improves, and the slot type enlarging section converts the amount of carrying secretly that sedimentation increases elemental sulfur in the doctor solution on the contrary to by separation.
Beneficial effect: compared with prior art, advantage of the present utility model comprises: equipment and materials consumes less, and the operation power cost is lower, and desulfurization operations is stablized easy-regulating, and desulfuration efficiency is high, and it is slower that side reaction generates salt.
(1) regenerator device materials weight of the present utility model is suitable with the regeneration tank material weight, is half of high tower regenerating unit.One tower desulfurizer makes the necessary reinforcement of tower wall thickness owing to regeneration tank is placed on the desulfurizing tower cat head, must increase basic earthwork amount and construction material consumption because whole tower weight amount and Operating Weight increase again, the desulfurizer of the present utility model of comparing is than tower desulfurizer steel consumption amount minimizing 20～30%.
(2) adopt the desulfurizer of the top spray self-priming regenerator with foam separator of the present utility model, contain the suspension sulfur content in the desulphurization circulating liquid less than 10mg/L.Ammonium thiocyanate content is 120～160mg/L, ATS (Ammonium thiosulphate) 50～100mg/L.In the general composition of coal gas situation, coal gas sulfide hydrogen amount is less than 100mg/m after the first grade desulfurizing
3Illustrate that the solution activity is high, desulfuration efficiency is high, and decyanation efficient is high, and the salify side reaction is slow.
(3) compare with the high tower regenerating unit, the operation power consumption is low.Circulating pump pressure reduces half, and saves the special-purpose air compressor, and the power electric depletion is few more than 54%.Have good practicality, can produce good economic benefit and social effect.
Description of drawings
Fig. 1 is the structural representation of the self-priming regenerator of top spray.
The specific embodiment
Below in conjunction with specific embodiment the utility model is described further.
As shown in Figure 1, tower body 1 profile of the self-priming regenerator of top spray is cylindrical shape, at the tower body 1 interior foam separator 2 that arranges; To the tower body 1 interior Ji Pao weir 3 that arranges between the cat head, establish sulphur bubble delivery line 5 at foam separator 2 to the tower body 1 between the cat head at foam separator 2; Be provided with self-priming injection regenerator 4 at tower, between the taphole of self-priming injection regenerator 4 lower ends was at the bottom of foam separator 2 and the tower, the taphole of self-priming injection regenerator linked to each other with solution delivery line 7, and solution delivery line 7 is " Π " shape pipe.Be provided with regeneration off gases discharge pipe 6 at cat head, in regeneration off gases discharge pipe 6 and cat head be equipped with for the shower nozzle of cleaning waste gas and froth breaking.
Ji Pao weir 3 is arranged on foam separator 2 to the inwall between the top of tower, be taper type, base diameter is large, upper diameter is little, depth of foam increased when foam shoved from bottom to top, the sulphur bubble band liquid measure that overflows into the Ji Pao weir is few, even foam output situation seldom also can make foam concentrations and overflow into the Ji Pao weir, large little under the foam flow section, liquid measure is with in concentrating and reducing the sulphur bubble of favourable foam, slot type with present employing, high tower, one tower equal difference, the collection foam method formula that they adopt all is to set up an expansion section in the outside of enlarging section to steep the weir as sulphur again, the liquid level that relies on liquid level regulator to regulate the enlarging section makes the sulphur bubble overflow the enlarging section and flows into sulphur bubble weir, this mode froth bed is thin, and the sulphur bubble band liquid measure that overflow enters sulphur bubble weir is many, and the liquid level Adjustment operation is difficult.And Ji Pao of the present utility model weir 3 makes foam to centralization, and foam is thick, under same foam output condition, and the more stable foam of more easily isolating in Ji Pao of the present utility model weir, and can save liquid level regulator in the tower is set.
Self-priming injection regenerator 4 can be installed at the bottom of cat head, tower body side or the tower, between the taphole of guaranteeing self-priming injection regenerator 4 lower ends is at the bottom of foam separator 2 and the tower.Regeneration is sprayed gas-liquid mixture and is rushed and then oppositely upwards flow through the foam separator outer wall with the bubble that disperses with solution at the bottom of the tower and rise to separating layer, and solution descends and flows into foam separator and successively separate the sulphur of carrying secretly and steep, and foam separates with solution is clear the most at last.
The self-priming regenerator of top spray of the present utility model is different from present regeneration tank and a tower regeneration tank, and regenerating unit of the present utility model is a kind of tower device, and the Fluid Flow in A time is longer more than one times than slot type.Foam separates the employing foam separator, and slot type regeneration is to reduce flow velocity after relying on solution to enter the enlarging section, along with the prolongation of time, the separative efficiency of foam separator improves, and the slot type enlarging section converts the amount of carrying secretly that sedimentation increases elemental sulfur in the doctor solution on the contrary to by separation.
Claims (6)
1. the self-priming regenerator of top spray is characterized in that: comprise tower body (1) and self-priming injection regenerator (4); Foam separator (2) and Ji Pao weir (3) are set in tower body (1); Described Ji Pao weir (3) is located between foam separator (2) and the cat head; Described self-priming injection regenerator (4) inserts in the tower body (1), makes between the taphole of self-priming injection regenerator (4) is at the bottom of foam separator (2) and the tower; Tower body (1) between Ji Pao weir (3) and cat head is provided with sulphur bubble delivery line (5); Be provided with regeneration off gases discharge pipe (6) at cat head; The taphole of described self-priming injection regenerator (4) links to each other with solution delivery line (7).
2. the self-priming regenerator of top spray according to claim 1, it is characterized in that: described foam separator (2) comprises funnel shaped conical shell, is provided with the not identical concentric locking collar cone of several diameters in conical shell, leaves the foam passage between the concentric locking collar cone.
3. the self-priming regenerator of top spray according to claim 1, it is characterized in that: described self-priming injection regenerator (4) is located at top, side or the bottom of tower.
4. the self-priming regenerator of top spray according to claim 1, it is characterized in that: described Ji Pao weir is located on the inwall of tower body (1), and shape is frustum, and base diameter is large, upper diameter is little.
5. the self-priming regenerator of top spray according to claim 1 is characterized in that: described solution delivery line (7) is " Π " shape pipe.
6. the self-priming regenerator of top spray according to claim 1 is characterized in that: in described regeneration off gases discharge pipe (6) and cat head be equipped with for the shower nozzle of cleaning waste gas and froth breaking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220121624 CN202666688U (en) | 2012-03-28 | 2012-03-28 | Top shower self-priming regeneration tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220121624 CN202666688U (en) | 2012-03-28 | 2012-03-28 | Top shower self-priming regeneration tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202666688U true CN202666688U (en) | 2013-01-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220121624 Expired - Fee Related CN202666688U (en) | 2012-03-28 | 2012-03-28 | Top shower self-priming regeneration tower |
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| Country | Link |
|---|---|
| CN (1) | CN202666688U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604688A (en) * | 2012-03-28 | 2012-07-25 | 江苏中显集团有限公司 | Top-spraying self-priming regeneration tower |
-
2012
- 2012-03-28 CN CN 201220121624 patent/CN202666688U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604688A (en) * | 2012-03-28 | 2012-07-25 | 江苏中显集团有限公司 | Top-spraying self-priming regeneration tower |
| CN102604688B (en) * | 2012-03-28 | 2014-03-26 | 江苏中显集团有限公司 | Top-spraying self-priming regeneration tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20130328 |