CN204027288U - A kind of mercury catalyst is produced circulation of tail gas and is utilized drying system - Google Patents
A kind of mercury catalyst is produced circulation of tail gas and is utilized drying system Download PDFInfo
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- CN204027288U CN204027288U CN201420436172.9U CN201420436172U CN204027288U CN 204027288 U CN204027288 U CN 204027288U CN 201420436172 U CN201420436172 U CN 201420436172U CN 204027288 U CN204027288 U CN 204027288U
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Abstract
The utility model discloses a kind of mercury catalyst production circulation of tail gas and utilize drying system, form primarily of air-introduced machine, electric central warm air furnace, drying oven, activated carbon absorption tower and scrubbing tower, the outlet of described air-introduced machine is connected with the import of electric central warm air furnace, the outlet of electric central warm air furnace is connected with the import of drying oven, drying oven is connected with the import of scrubbing tower through activated carbon absorption tower, described drying oven with the predrying stove and air blast that are connected successively are also set between activated carbon absorption tower, described scrubbing tower forms closed-loop path through the inlet communication of moisture trap and air-introduced machine.The utility model is by introducing moisture trap by the tail gas after washing, dry gas can be obtained, hot-blast stove is sent into again by air-introduced machine, tail gas is recycled, not only reduce discharge capacity, decrease environmental pollution, and decrease the dry time, effective control heavy metal pollution discharge capacity, can in chemical technology field wide popularization and application.
Description
Technical field
The utility model belongs to mercury catalyst production technical field, specifically relates to a kind of mercury catalyst production circulation of tail gas and utilizes drying system.
Background technology
The production of mercury catalyst mainly comprises immersion, coolly to put, dry, packaging four processes, and wherein drying process is the key link that mercury catalyst is produced, and the quality of drying process directly has influence on drying and dewatering efficiency and the product quality of mercury catalyst.At present, the drying process that mercury catalyst is produced normally adopts air-introduced machine to be heated by air suction electric central warm air furnace, gas temperature is made to reach about 150 DEG C, then hot blast is made to enter drying oven and predrying stove successively, the moisture content of catalyst by catalyst about 99.7% and 80% can be removed after the high temperature evaporation of 4 hours respectively in drying oven and predrying stove, packaging process is entered after catalyst moisture content in drying oven is qualified, catalyst in predrying stove enters drying oven and carries out drying again, the tail gas of predrying stove enters scrubbing tower again and carries out qualified discharge after dust removal process after activated carbon absorption tower.
In above-mentioned mercury catalyst production technology, because dried tail gas directly discharges, in tail gas with the harmful substance such as mercury, mercury chloride also enter in air simultaneously, although be through process qualified discharge, but total amount increases, cause heavy metals emission amount to increase, can certain influence be caused to environment, there is certain potential safety hazard; Simultaneously, owing to being directly by air-introduced machine extracting air, heated by electric central warm air furnace again, because carrying large quantity of moisture secretly in air, the moisture that in last preheating gas, condensation is got off is absorbed by catalyst again, makes the overlong time of every stove drying, and moisture can not be removed completely, therefore, catalyst drying and dewatering efficiency is lower, and energy consumption is higher.
Utility model content
For solving the problem, the utility model provides a kind of mercury catalyst production circulation of tail gas and utilizes drying system.Thus effectively reduce the discharge of tail gas, greatly reduce drying time, improve catalyst drying and dewatering efficiency comparatively.
The utility model is achieved by following technical solution.
A kind of mercury catalyst is produced circulation of tail gas and is utilized drying system, form primarily of air-introduced machine, electric central warm air furnace, drying oven, activated carbon absorption tower and scrubbing tower, the outlet of described air-introduced machine is connected with the import of electric central warm air furnace, the outlet of electric central warm air furnace is connected with the import of drying oven, drying oven is connected with the import of scrubbing tower through activated carbon absorption tower, described drying oven with the predrying stove and air blast that are connected successively are also set between activated carbon absorption tower, described scrubbing tower forms closed-loop path through the inlet communication of moisture trap and air-introduced machine.
The outlet of described scrubbing tower is connected with tail gas blow-down pipe, and tail gas blow-down pipe is provided with perforate, perforate is connected with the circulating line A matched with open pore size, is communicated with by scrubbing tower by circulating line A with moisture trap.
Described activated carbon absorption tower is made up of the I level active carbon adsorption tower be connected successively, II level active carbon adsorption tower and III level active carbon adsorption tower.
The outlet of described moisture trap is connected with the import of air-introduced machine by circulating line B.
The top of described moisture trap is provided with exhaust outlet.
The blowoff valve for discharging hydrops is provided with bottom described moisture trap.
Described scrubbing tower and tail gas blow-down pipe all adopt PP material to make.
The beneficial effects of the utility model are:
Compared with prior art, the utility model is by introducing moisture trap by the tail gas after washing, dry gas can be obtained, send into hot-blast stove by air-introduced machine again, tail gas is recycled, not only reduces discharge capacity, decrease environmental pollution, and decreasing the dry time, every stove can save 1 hours, and catalyst per ton can save 120 yuan/ton.Both environmental, also create benefit simultaneously; Tail gas containing mercury in mercury catalyst production process recycles by the utility model, effectively controls heavy metal pollution discharge capacity, reaches the effect of energy-saving and emission-reduction, have good Social benefit and economic benefit, can in chemical technology field wide popularization and application.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1-air-introduced machine, 2-electric central warm air furnace, 3-drying oven, the predrying stove of 4-, 5-air blast, 6-activated carbon absorption tower, 7-scrubbing tower, 8-tail gas blow-down pipe, 9-circulating line A, 10-moisture trap, 11-circulating line B, 61-I level active carbon adsorption tower, 62-II level active carbon adsorption tower, 63-III level active carbon adsorption tower.
Detailed description of the invention
The technical solution of the utility model is further described below in conjunction with accompanying drawing, but described in claimed scope is not limited to.
As shown in Figure 1, a kind of mercury catalyst described in the utility model is produced circulation of tail gas and is utilized drying system, primarily of air-introduced machine 1, electric central warm air furnace 2, drying oven 3, activated carbon absorption tower 6 and scrubbing tower 7 form, the outlet of described air-introduced machine 1 is connected with the import of electric central warm air furnace 2, the outlet of electric central warm air furnace 2 is connected with the import of drying oven 3, drying oven 3 is connected through the import of activated carbon absorption tower 6 with scrubbing tower 7, described drying oven 3 with the predrying stove 4 and air blast 5 that are connected successively are also set between activated carbon absorption tower 6, described scrubbing tower 7 forms closed-loop path through moisture trap 10 and the inlet communication of air-introduced machine 1.Adopt the technical program, tail gas after being washed by scrubbing tower 7 is introduced moisture trap 10, dry gas can be obtained, send into hot-blast stove 2 by air-introduced machine 1 again, tail gas is recycled, not only reduces discharge capacity, decrease environmental pollution, and decreasing the dry time, every stove can save 1 hours, and catalyst per ton can save 120 yuan/ton.
The outlet of described scrubbing tower 7 is connected with tail gas blow-down pipe 8, and tail gas blow-down pipe 8 is provided with perforate, perforate is connected with the circulating line A9 matched with open pore size, is communicated with by scrubbing tower 7 by circulating line A9 with moisture trap 10.
Described activated carbon absorption tower 6 is made up of I level active carbon adsorption tower 61, the II level active carbon adsorption tower 62 be connected successively and III level active carbon adsorption tower 63.
The outlet of described moisture trap 10 is connected with the import of air-introduced machine 1 by circulating line B11.
The top of described moisture trap 10 is provided with exhaust outlet.Like this, operationally, tail gas enters in container from moisture trap 10 top, because the proportion (air molecule amount is 29) of air will weigh than the proportion (molecular weight of H2O is 18) of hydrone, tail gas is through overexpansion and three road dividing plates, buffering is utilized to be separated along cylindrical shell by the moisture content carried secretly with Action of Gravity Field, dry tail gas is obtained in moisture trap 10 bottom, tail gas enters from the mouth of pipe of the distance of 400MM bottom moisture trap, discharges from the exhaust outlet on moisture trap 10 top.
The blowoff valve for discharging hydrops is provided with bottom described moisture trap 10.
Described scrubbing tower 7 and tail gas blow-down pipe 8 all adopt PP material to make.
When utilizing drying system described in the utility model to utilize mercury catalyst production circulation of tail gas, its drying process step is as follows:
(1) tail gas heating: tail gas enters air-introduced machine 1 entrance by circulating line B11, enters electric central warm air furnace 2 and heats after air-introduced machine 1, makes gas temperature reach about 150 DEG C;
(2) catalyst is dried: from the electric furnace 2 described in step (1), out hot blast enters drying oven 3 and pre-dry stove 4 successively, catalyst in drying oven 3 is by after hot air seasoning, enter packaging process after obtaining the qualified catalyst of moisture content, the hot air temperature about about 80 DEG C of coming from drying oven 3 is carried out predrying to catalyst predrying stove 4;
(3) dust removal process: enter scrubbing tower 9 from predrying stove 4 tail gas out after I level active carbon adsorption tower 61, II level active carbon adsorption tower 62 and III level active carbon adsorption tower 63 and carry out dust removal process, and enter moisture trap 10 by circulating line A9 and recycle.
From predrying stove 4 exhaust temperature about about 40 DEG C out in described step (3).
Embodiment of the present utility model: as shown in Figure 1, the utility model is when applying, described scrubbing tower 7 and outlet all adopt PP material to make, scrubbing tower 7 exports and connects tail gas blow-down pipe 8, the caliber of tail gas blow-down pipe 8 is 700mm, blow-down pipe leaves the hole that diameter is 700mm, and connection diameter is the PP pipe of 700mm in perforate, and be 1500mm by PP pipe access diameter, the top of the moisture trap 10 of high-order 2000mm, tail gas is made to enter in container from moisture trap 10 top, because the proportion (air molecule amount is 29) of air will weigh than the proportion (molecular weight of H2O is 18) of hydrone, through overexpansion and three road dividing plates after tail, buffering is utilized to be separated along cylindrical shell by the moisture content carried secretly with Action of Gravity Field, moisture trap 10 bottom just obtains dry tail gas, tail gas enters from the mouth of pipe of 400mm distance bottom moisture trap 10, and discharge from the exhaust outlet on moisture trap 10 top, by being arranged on the blowoff valve discharge hydrops bottom moisture trap 10, tail gas enters air-introduced machine 1 entrance by the PP pipeline that diameter is 700mm, and enter electric central warm air furnace 2 and heat, gas temperature is made to reach about 150 DEG C, hot blast enters drying oven 3 and pre-dry stove 4 successively, catalyst in drying oven 3 is by after hot air seasoning, packaging process is entered after obtaining the qualified catalyst of moisture content, the hot gas about about 80 DEG C of coming from drying oven 3 carries out predrying to catalyst predrying stove 4, about about 40 DEG C, the tail gas of predrying stove 4 is through I level active carbon adsorption tower 61, II level active carbon adsorption tower 62 and III level active carbon adsorption tower 63, enter again and enter moisture trap 10 after scrubbing tower 7 carries out dust removal process and recycle.
Claims (7)
1. a mercury catalyst is produced circulation of tail gas and is utilized drying system, primarily of air-introduced machine (1), electric central warm air furnace (2), drying oven (3), activated carbon absorption tower (6) and scrubbing tower (7) composition, the outlet of described air-introduced machine (1) is connected with the import of electric central warm air furnace (2), the outlet of electric central warm air furnace (2) is connected with the import of drying oven (3), drying oven (3) is connected through the import of activated carbon absorption tower (6) with scrubbing tower (7), it is characterized in that: the predrying stove (4) and air blast (5) that are connected successively are also set between described drying oven (3) with activated carbon absorption tower (6), described scrubbing tower (7) forms closed-loop path through moisture trap (10) and the inlet communication of air-introduced machine (1).
2. a kind of mercury catalyst according to claim 1 is produced circulation of tail gas and is utilized drying system, it is characterized in that: the outlet of described scrubbing tower (7) is connected with tail gas blow-down pipe (8), tail gas blow-down pipe (8) is provided with perforate, perforate is connected with the circulating line A (9) matched with open pore size, by circulating line A (9), scrubbing tower (7) is communicated with moisture trap (10).
3. a kind of mercury catalyst according to claim 1 is produced circulation of tail gas and is utilized drying system, it is characterized in that: described activated carbon absorption tower (6) is made up of the I level active carbon adsorption tower (61) be connected successively, II level active carbon adsorption tower (62) and III level active carbon adsorption tower (63).
4. a kind of mercury catalyst according to claim 1 is produced circulation of tail gas and is utilized drying system, it is characterized in that: the outlet of described moisture trap (10) is connected with the import of air-introduced machine (1) by circulating line B (11).
5. a kind of mercury catalyst according to claim 1 is produced circulation of tail gas and is utilized drying system, it is characterized in that: the top of described moisture trap (10) is provided with exhaust outlet.
6. a kind of mercury catalyst according to claim 1 is produced circulation of tail gas and is utilized drying system, it is characterized in that: described moisture trap (10) bottom is provided with the blowoff valve for discharging hydrops.
7. a kind of mercury catalyst according to claim 2 is produced circulation of tail gas and is utilized drying system, it is characterized in that: described scrubbing tower (7) and tail gas blow-down pipe (8) all adopt PP material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420436172.9U CN204027288U (en) | 2014-08-04 | 2014-08-04 | A kind of mercury catalyst is produced circulation of tail gas and is utilized drying system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420436172.9U CN204027288U (en) | 2014-08-04 | 2014-08-04 | A kind of mercury catalyst is produced circulation of tail gas and is utilized drying system |
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| CN204027288U true CN204027288U (en) | 2014-12-17 |
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| CN201420436172.9U Expired - Fee Related CN204027288U (en) | 2014-08-04 | 2014-08-04 | A kind of mercury catalyst is produced circulation of tail gas and is utilized drying system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197692A (en) * | 2014-08-04 | 2014-12-10 | 贵州省万山银河化工有限责任公司 | Drying system and method for mercury catalyst production tail gas recycling |
| CN109731365A (en) * | 2019-01-28 | 2019-05-10 | 铜仁学院 | A kind of mercury catalyst stoving process of heavy metal Hg zero-emission |
-
2014
- 2014-08-04 CN CN201420436172.9U patent/CN204027288U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197692A (en) * | 2014-08-04 | 2014-12-10 | 贵州省万山银河化工有限责任公司 | Drying system and method for mercury catalyst production tail gas recycling |
| CN109731365A (en) * | 2019-01-28 | 2019-05-10 | 铜仁学院 | A kind of mercury catalyst stoving process of heavy metal Hg zero-emission |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20141217 Termination date: 20170804 |