CN103007673B - Comprehensive recovery treater and method for pharmaceutical benzoic acid process tail gas - Google Patents
Comprehensive recovery treater and method for pharmaceutical benzoic acid process tail gas Download PDFInfo
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- CN103007673B CN103007673B CN201310018112.5A CN201310018112A CN103007673B CN 103007673 B CN103007673 B CN 103007673B CN 201310018112 A CN201310018112 A CN 201310018112A CN 103007673 B CN103007673 B CN 103007673B
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- tail gas
- water
- benzoic acid
- shower water
- spray
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Abstract
The invention relates to comprehensive recovery treater and method for pharmaceutical benzoic acid process tail gas. The treater comprises an upper head U, a middle condenser M and a lower head S. The top end of the upper head U is provided with an exhaust hole. A water baffle is disposed below the exhaust. A spray pipe is disposed below the water baffle and is provided with a spray nozzle. The middle condenser M is provided with a cooling water inlet, a cooling water outlet and tubes. The tubes are evenly arrayed and have cooling contact area meeting the requirement of cooling gas. A baffle plate is disposed between the cooling water inlet and the cooling water outlet. The lower head S is provided with a tail gas inlet and a spray water outlet. A screen plate is disposed above the tail gas inlet, round holes of the screen plate are evenly arrayed, and total area of the round holes is 4-6 times of that of the tail gas inlet. The novel comprehensive recovery treater for effectively treating pharmaceutical benzoic acid process tail gas is formed by organically combining the condenser and a spray column, organic light-component pollutants in tail gas can be eliminated, and benzoic acid material in the tail gas is recovered for production.
Description
Technical field
The invention belongs to technical field of chemical medicine, particularly relate in production medicine production process of benzoic acid and produce process tail gas synthetical recovery processor and recovery method.
Background technology
Medicine benzoic acid production technology comprises the operations such as dissolving, crystallization, drying, drying, packaging, the waste gas produced in the waste gas that the tail gas produced in production process comes from emptying waste gas in course of dissolution, cooling tank produces, dry run, this kind of tail gas is both containing benzoic acid dust, again with producing organic light component material (benzaldehyde, phenmethylol, biphenyl etc.) in course of dissolution, and containing a large amount of water vapour, temperature is also higher, and intractability is large.
Traditional vent gas treatment mode is spray column, as shown in Figure 1, adopts shower water spray tail gas, utilizes shower water to benzoic acid dust washing in tail gas, will to reach and remove benzoic object in tail gas.Which is better to benzoic acid treatment effect in tail gas, but to the organic light component material poor removal effect in tail gas, and containing a large amount of water vapours in the tail gas of discharging, containing a small amount of benzoic acid in water vapour, equally to environment.
Summary of the invention
Our Bohai Sea, Tianjin Development Zone Dong great pharmaceutcal corporation, Ltd operates according to concrete actual production, through the research and development of autonomous innovation, provide a kind of new medicine benzoic acid process tail gas synthetical recovery processor, this invention adds a cooling device and cooling device and spray system is organically combined compared with traditional spray column, tail gas in medicine production process of benzoic acid washed for shower water is passed through water quench, temperature is reduced, in temperature-fall period, water vapour and the cooling of organic light component become droplet, then by shower water, benzoic acid dust and droplet are rinsed to Sprayer Circulation tank, organic light component floats on upper strata in circulating water chennel, when light component amount is too many, technical benzene formic acid workshop is delivered to as raw material after collection, lower floor's recirculated water concentration of benzoic acid is delivered to Sodium Benzoate workshop as dissolving mother liquid coming when reaching capacity, all utilization is recycled by pollutant in which medicine benzoic acid process tail gas.
For achieving the above object, the technical scheme that the present invention proposes is: provide a kind of medicine benzoic acid process tail gas comprehensive treatment device 15, as shown in Figure 2, this equipment comprises top end socket U, interconderser M, bottom head S.End socket U top, top arranges exhaust outlet 9, and exhaust outlet arranges baffling water fender 89 times, and the spacing 150 ~ 300mm of baffling water fender, arranges spray header 10 under water fender, and spray header installs spray head 16; Interconderser M arranges cooling water inlet 7, coolant outlet 13 and tubulation 11, tubulation arranges evenly and cools the requirement that contact area meets cooled exhaust gas amount, arranges hydraulic barrier 12, the spacing 300 ~ 500mm of hydraulic barrier between cooling water inlet 7 and coolant outlet 13; Bottom head S arranges inlet exhaust gas 5, shower water outlet 6; Be provided with sieve plate 14 above inlet exhaust gas 5, hole diameter of sieve (perforated) plate 3 ~ 5mm, circular hole is evenly distributed, and the total area of circular hole is 4 ~ 6 times of air inlet area.
The present invention is adopted to recycle the method for medicine benzoic acid process tail gas as shown in Figure 2,3.
First open cooling water inlet 7 and coolant outlet 13 opens cooling water system, open Sprayer Circulation water pump 4 subsequently, Sprayer Circulation water is circulated in equipment installation b to synthetical recovery processor by shower water and forms spray.Then air-introduced machine 1 is started, medicine benzoic acid process tail gas enters in medicine benzoic acid process tail gas comprehensive treatment device bottom head S from inlet exhaust gas 5, tail gas is by forming a large amount of bubble during sieve plate 14, increase gas liquid interfacial area, in gas, most dust is washed down, and the spray liquid containing dust flows in Sprayer Circulation tank 3 by shower water outlet 6; Along with gas rises to interconderser M section, in cooling tubulation 11, temperature reduces, and in tail gas, organic light component material and water vapour are condensed into as liquid, are washed away by the shower water sprayed out from shower head 16; Tail gas containing a small amount of water vapour is through the stop of hydraulic barrier 8 in the end socket A of top, and water vapour is got off by detention, and tail gas enters exhaust emissions pipeline d from exhaust outlet 9 by air-introduced machine 1 and is disposed to air.When in spray liquid in spray tank 3, concentration of benzoic acid reaches capacity, start shower water circulating pump 4, close shower water and be circulated to equipment installation b, open shower water simultaneously and be delivered to the raw workshop pipeline a of Sodium Benzoate, shower water being delivered to Sodium Benzoate sodium workshop as Sodium Benzoate raw materials for production, when shower water is not enough, supplementing distilled water by supplementing shower water line c.
Condenser and spray column are organically combined the synthetical recovery processor defining a kind of effective treatment of pharmaceutical products benzoic acid process tail gas newly by this invention; this invention not only eliminates the discharge of organic light component pollutant in medicine benzoic acid tail gas; protect environment; the benzoic acid starting materials also reclaimed in tail gas is reused for production; for our Bohai Sea, Tianjin Development Zone Dong great pharmaceutcal corporation, Ltd saves no small expense, concrete benefit data are as follows:
The recyclable benzoic acid starting materials of medicine benzoic acid product per ton: 0.005 ton, produces medicine benzoic acid amount per year: 5000 tons
1 year recovery of benzoic acid raw material: 25 tons/year, starting benzoic acid per ton 10,000 yuan,
Within 1 year, save: 10,000 yuan/ton × 25 tons/year=250,000 yuan/year
That is: within 1 year, can be my company and save cost 250,000 yuan.
Accompanying drawing explanation
Fig. 1: traditional drug benzoic acid process tail gas treatment process schematic diagram;
Fig. 2: medicine benzoic acid process tail gas synthetical recovery processor schematic diagram of the present invention;
Fig. 3: medicine benzoic acid tail gas treatment process schematic diagram of the present invention.
Illustrate: 1-air-introduced machine; 2-spray column; 3-Sprayer Circulation tank; 4-Sprayer Circulation water pump; 5-inlet exhaust gas; 6-shower water exports; 7-cooling water inlet; 8-baffling water fender; 9-exhaust outlet; 10-spray header; 11-cools tubulation; 12-hydraulic barrier; 13-coolant outlet; 14-sieve plate; 15-processor; 16-sprays head.
A-shower water is delivered to Sodium Benzoate raw workshop pipeline; B-shower water is circulated to equipment installation; C-supplements shower water pipeline; D-exhaust emissions pipeline.
U-top end socket; M-condenser; S-bottom head.
Detailed description of the invention
The present invention is described in further detail with detailed description of the invention with reference to the accompanying drawings below:
Adopt accompanying drawing 2 and the medicine benzoic acid process tail gas synthetical recovery processor 15 shown in accompanying drawing 3, this equipment comprises top end socket U, interconderser M, bottom head S.End socket U top, top arranges exhaust outlet 9, and exhaust outlet arranges baffling water fender 89 times, and the spacing 150 ~ 300mm of water fender, arranges spray header 10 under water fender, and spray header installs spray head 16; Interconderser M arranges cooling water inlet 7, coolant outlet 13 and tubulation 11, tubulation arranges evenly and cools the requirement that contact area meets cooled exhaust gas amount, arranges hydraulic barrier 12, the spacing 300 ~ 500mm of hydraulic barrier between cooling water inlet 7 and coolant outlet 13; Bottom head S arranges inlet exhaust gas 5, shower water outlet 6; Be provided with sieve plate 14 above inlet exhaust gas 5, hole diameter of sieve (perforated) plate 3 ~ 5mm, circular hole is evenly distributed, and the total area of circular hole is 4 ~ 6 times of air inlet area.
Concrete data are medicine benzoic acid process tail gas comprehensive treatment device:
the high 600mm of U section high 600mm, M section high 2200mm, S section, cooling water outlet and inlet caliber DN25, shower water inlet pipe caliber DN20, cooling tubulation
root, inlet exhaust gas
offgas outlet
spray liquid exports
hole diameter of sieve (perforated) plate 4mm, the spacing 180mm of hydraulic barrier in U section, M section is evenly arranged 4 layers of water fender, it is first-class that shower water inlet pipe installs shower water, notebook data is also not exclusive, as long as within the sized data reaching the medicine benzoic acid dissolving tank of technique effect of the present invention is all included in scope of the present invention.
Embodiment: first open cooling water inlet 7 and coolant outlet 13, open cooling water system, open Sprayer Circulation water pump 4 subsequently, is made Sprayer Circulation water be circulated in equipment installation b to synthetical recovery processor by shower water and forms spray.Then air-introduced machine 1 is started, medicine benzoic acid process tail gas enters in medicine benzoic acid process tail gas comprehensive treatment device bottom head S from inlet exhaust gas 5, tail gas is by forming a large amount of bubble during sieve plate 14, increase gas liquid interfacial area, in gas, most dust is washed down, and the spray liquid containing dust flows in Sprayer Circulation tank 3 by shower water outlet 6; Along with gas rises to interconderser M section, in cooling tubulation 11, temperature reduces, and in tail gas, organic light component material and water vapour are condensed into as liquid, are washed away by the shower water sprayed out from shower head 16; Tail gas containing a small amount of water vapour is through the stop of hydraulic barrier 8 in the end socket A of top, and water vapour is got off by detention, and tail gas enters exhaust emissions pipeline d from exhaust outlet 9 by air-introduced machine 1 and is disposed to air.When in spray liquid in spray tank 3, concentration of benzoic acid reaches capacity, start shower water circulating pump 4, close shower water and be circulated to equipment installation b, open shower water simultaneously and be delivered to the raw workshop pipeline a of Sodium Benzoate, shower water being delivered to Sodium Benzoate sodium workshop as Sodium Benzoate raw materials for production, when shower water is not enough, supplementing distilled water by supplementing shower water line c.
Embodiments of the invention have reached effect of the present invention all, and organic light component is thoroughly reclaimed, and without any discharge, recovery of benzoic acid cost of material is as follows:
The recyclable benzoic acid starting materials of medicine benzoic acid product per ton: 0.005 ton, produces medicine benzoic acid amount per year: 5000 tons
1 year recovery of benzoic acid raw material: 25 tons/year, starting benzoic acid per ton 10,000 yuan,
Within 1 year, save: 10,000 yuan/ton × 25 tons/year=250,000 yuan/year
That is: within 1 year, can be my company and save cost 250,000 yuan.
Claims (1)
1. a pharmaceutical grade benzoic acid process tail gas comprehensive treatment device, its feature comprises top end socket U, interconderser M, bottom head S; End socket U top, top arranges exhaust outlet (9), baffling water fender (8) is set under exhaust outlet (9), spacing 150 ~ the 300mm of water fender, arranges spray header (10) under water fender, spray header installs spray head (16); Interconderser M arranges cooling water inlet (7), coolant outlet (13) and cooling tubulation (11), and tubulation arranges evenly and cools the requirement that contact area meets cooled exhaust gas amount; Hydraulic barrier (12) is set between cooling water inlet (7) and coolant outlet (13), the spacing 300 ~ 500mm of hydraulic barrier; Bottom head S arranges inlet exhaust gas (5), shower water outlet (6); Inlet exhaust gas (5) top is provided with sieve plate (14), hole diameter of sieve (perforated) plate 3 ~ 5mm, and circular hole is evenly distributed, and the total area of circular hole is 4 ~ 6 times of air inlet area; First cooling water inlet (7) and coolant outlet (13) is opened, open cooling water system, open shower water circulating pump (4) subsequently, Sprayer Circulation water is circulated in equipment installation b to synthetical recovery processor by shower water and forms spray; Then air-introduced machine (1) is started, medicine benzoic acid process tail gas enters in medicine benzoic acid process tail gas comprehensive treatment device bottom head S from inlet exhaust gas (5), tail gas forms a large amount of bubble by time sieve plate (14), increase gas liquid interfacial area, in gas, most dust is washed down, and the spray liquid containing dust flows in Sprayer Circulation tank (3) by shower water outlet (6); Along with gas rises to interconderser M section, in cooling tubulation (11), temperature reduces, and in tail gas, organic light component material and water vapour are condensed into as liquid, is washed away by the shower water sprayed out from spray head (16); The stop of tail gas containing a small amount of water vapour through baffling water fender (8) in the end socket A of top, water vapour is got off by detention, and tail gas enters exhaust emissions pipeline d from exhaust outlet (9) by air-introduced machine (1) and is disposed to air; When in spray liquid in Sprayer Circulation tank (3), concentration of benzoic acid reaches capacity, start shower water circulating pump (4), close shower water and be circulated to equipment installation b, open shower water simultaneously and be delivered to Sodium Benzoate workshop pipeline a, shower water being delivered to Sodium Benzoate workshop as Sodium Benzoate raw materials for production, when shower water is not enough, supplementing distilled water by supplementing shower water line c.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310018112.5A CN103007673B (en) | 2013-01-17 | 2013-01-17 | Comprehensive recovery treater and method for pharmaceutical benzoic acid process tail gas |
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| CN201310018112.5A CN103007673B (en) | 2013-01-17 | 2013-01-17 | Comprehensive recovery treater and method for pharmaceutical benzoic acid process tail gas |
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| CN103007673A CN103007673A (en) | 2013-04-03 |
| CN103007673B true CN103007673B (en) | 2015-04-15 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104289076A (en) * | 2013-07-16 | 2015-01-21 | 承源环境科技企业有限公司 | Water-washing purification system continuous operation water supply and discharge device |
| CN107551745A (en) * | 2017-10-17 | 2018-01-09 | 宋荟 | Dust vapor Recovery Purifying tower |
| CN107915389B (en) * | 2017-10-27 | 2020-06-26 | 北京中电联节能技术有限公司 | Two-stage integrated sludge indirect heat drying method and drying system |
| CN109173320B (en) * | 2018-10-08 | 2020-11-17 | 吴江飞乐天和电子材料有限公司 | Hydrogen chloride industrial waste gas condensation, absorption and recovery device and system |
| CN111450656A (en) * | 2020-05-29 | 2020-07-28 | 山东兴鲁生物科技有限公司 | Acrolein production waste gas treatment device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201799201U (en) * | 2010-08-20 | 2011-04-20 | 江苏昊华精细化工有限公司 | Process tail gas spray absorber |
| CN201971648U (en) * | 2011-01-27 | 2011-09-14 | 安徽省化工设计院 | Heat recovering device for titanium white powder airflow grinding tail gas |
| CN202654925U (en) * | 2012-05-13 | 2013-01-09 | 深圳市迪迪美环保科技有限公司 | Cooling-purifying tower structure for waste decomposition tail gas |
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2013
- 2013-01-17 CN CN201310018112.5A patent/CN103007673B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201799201U (en) * | 2010-08-20 | 2011-04-20 | 江苏昊华精细化工有限公司 | Process tail gas spray absorber |
| CN201971648U (en) * | 2011-01-27 | 2011-09-14 | 安徽省化工设计院 | Heat recovering device for titanium white powder airflow grinding tail gas |
| CN202654925U (en) * | 2012-05-13 | 2013-01-09 | 深圳市迪迪美环保科技有限公司 | Cooling-purifying tower structure for waste decomposition tail gas |
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