CN102150651B - System for reutilizing bromomethane by vacuum heating - Google Patents
System for reutilizing bromomethane by vacuum heating Download PDFInfo
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- CN102150651B CN102150651B CN2010105929035A CN201010592903A CN102150651B CN 102150651 B CN102150651 B CN 102150651B CN 2010105929035 A CN2010105929035 A CN 2010105929035A CN 201010592903 A CN201010592903 A CN 201010592903A CN 102150651 B CN102150651 B CN 102150651B
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- celfume
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Abstract
The invention relates to a system for reutilizing bromomethane by vacuum heating, which comprises a heating cavity, a closed fumigation facility, a valve, a vacuum pump and pipelines, wherein a plurality of carbon material packed columns are arranged in the heating cavity, and the structure of each carbon material packed column is a cylinder with a cavity; the carbon material packed columns are connected in parallel and communicated; the upper communicating pipeline is led out of the upper part of the heating cavity and then connected with the vacuum pump, passes through the vacuum pump and is further connected to an upper pipeline interface of the closed fumigation facility; the lower communicating pipeline is led out of the lower part of the heating cavity and then connected with a circulating fan, passes through the circulating fan and is further connected to a lower pipeline interface of the closed fumigation facility; the carbon material packed columns adopt the vertical placement, thereby effectively solving the difficult problems of non-uniform distribution of activated carbon or carbon fibers, and difficulty in replacement of the activated carbon or the carbon fibers; the vacuum pump is adopted for vacuum-pumping of the carbon material packed columns, and then the bromomethane adsorbed in carbon material is heated for desorption, thereby improving the desorption effect and reducing the heating desorption temperature; and the bromomethane which is desorbed by vacuum heating can be directly discharged to the fumigation facility with goods to be fumigated, thereby reducing the reutilizing cost of the bromomethane.
Description
Technical field
The present invention relates to the chemical treatment method field, particularly a kind of Celfume heating in vacuum is utilized system again; After system was used for the methyl bromide fumigation processing, the utilization again of the method realization Celfume of heating in vacuum was particularly adopted in the recycling of Celfume.
Background technology
Celfume be use at most in stifling in the world at present the processing, fumigant the most widely.Celfume has the characteristic of extensive kill insects, nematode, germ and weeds, but because Celfume has destruction to the ozone layer in the atmosphere, 1992, it was put into the controlled substance list of " about ODS Montreal Protocol book " amendment.For reducing stifling destruction of handling back Celfume discharging, need research to realize Celfume recycling technology to ozone layer.
Applicant 2 of utility model patents that Celfume reclaims and utilize again that are authorized before this are respectively " microwave decompression condensate recovery system " (patent No.: 200820075975.0) with " Celfume pressurize condensing and recycling device " (patent No.: 200820073985.0).After these 2 patents have mainly been studied the methyl bromide fumigation processing; Adopt charcoal absorption to fumigate the Celfume after handling; Wait to adsorb saturated back and adopt the Celfume in heating using microwave or other thermal source desorb active carbons, adopt then technological means such as condensation or pressurization with Celfume be recycled to deposit in the steel cylinder subsequent use.
Above patent exists in practical operation that the Celfume desorption effect is relatively poor, Celfume be recycled to steel cylinder purity lower and reclaim at every turn that purity is inconsistent, the operation of condensing and recycling to steel cylinder require high, equipment air-tightness require high, change problems such as active carbon inconvenience.
Summary of the invention
The object of the invention is exactly in order to overcome the defective of above-mentioned prior art, and a kind of effective Celfume recycling system is provided, and has solved the recycling problem of Celfume well.
The objective of the invention is to realize through such technical scheme: the Celfume heating in vacuum is utilized system again, it is characterized in that, said system mainly is made up of heating cavity, airtight stifling facility, valve, vavuum pump and pipeline;
Comprise some (calculate material with carbon element according to the stifling demand of reality and fill quantity and packed column quantity) material with carbon element (comprising activated carbon or carbon fiber) packed column in the said heating cavity, material with carbon element packed column structure is the cavity cylinder; A pipe joint is left at upper and lower two ends of cavity cylinder respectively; Pipe laying valve on the pipe joint, pipeline valve interface external pipe;
Said material with carbon element packed column is communicated with on same pipeline through the pipe joint parallel connection of going up the bottom separately; This pipeline is drawn the back and is connected vavuum pump from heating cavity top, be connected to airtight stifling facility upper pipe interface through vavuum pump;
Said material with carbon element packed column is communicated with on same pipeline through the pipe joint parallel connection of descending the bottom separately; Said pipeline is drawn the back and is connected circulating fan from the heating cavity bottom, be connected to airtight stifling facility lower pipeline interface through circulating fan;
Fill active carbon or carbon fiber in the said material with carbon element packed column;
Be provided with the countersunk head blind pipe in the said material with carbon element packed column, laying temperature probe in the countersunk head blind pipe, the lead-in wire of temp probe PT100 thermal resistance is drawn in the material with carbon element packed column, and the lead-in wire of PT100 thermal resistance is connected to the digital indicator thermal resistance and inserts terminal; Heat to heating cavity by digital indicator temperature alarming point control firing equipment (heater);
Said airtight stifling facility is installed the Celfume concentration detector;
The material with carbon element packed column can be according to stifling actual demand increase and decrease; Each material with carbon element packed column all has the pipeline of high temperature resistant and anti-Celfume corrosion up and down, and valve is housed on the pipeline; The material with carbon element packed column is also connected by pipeline; In the material with carbon element packed column temperature-sensing probe is arranged; The material with carbon element packed column is enclosed in the heating cavity, and heating cavity can adopt heat-conducting oil furnace or other mode of heatings to realize the heating to the material with carbon element packed column; The material with carbon element packed column is connected with vavuum pump through pipeline; Vavuum pump is through pipeline and stifling storehouse or treat that stifling facility one end is connected, has valve to control on the pipeline; Fumigate the storehouse or treat that the stifling facility other end is connected with the material with carbon element packed column through pipeline, has valve control on the pipeline; Fumigate the storehouse or treat that stifling facility inside has Celfume concentration checkout equipment.
The beneficial effect that the technical scheme that the present invention adopts obtains is: the material with carbon element packed column adopts vertical placement can effectively solve active carbon or carbon fiber skewness, active carbon or carbon fiber are changed problem of difficult; After adopting vavuum pump that the material with carbon element packed column is vacuumized again the Celfume of heating desorption material with carbon element absorption can improve desorption effect, reduce the temperature of heating desorption; Adopt the Celfume of heating in vacuum desorb can directly be disposed in the stifling facility of treating stifling goods, that reduces Celfume utilizes cost again.
Description of drawings
Fig. 1 is that the Celfume heating in vacuum is utilized system schematic again;
Fig. 2 is the heating cavity sketch map.
1. pipeline, 2. valve A, 3. Celfume concentration detector A, 4. stifling storehouse; 5. Celfume concentration detector B, 6. vavuum pump, 7. valve B, 8. active carbon or carbon fiber; 9. temp probe, 10. heating cavity, 11. material with carbon element packed columns, 12. valve C; 13. circulating fan, 14. valve D, 15. countersunk head blind pipes, 16. PT100 thermal resistances lead-in wire.
Embodiment
Understand the present invention for clearer, describe the present invention in detail in conjunction with accompanying drawing and embodiment:
With reference to Fig. 1, system comprises: pipeline 1, valve A2, valve B7, valve C12 and valve D14, Celfume concentration detector A3 and the Celfume concentration detector B5 of high temperature resistant, anti-Celfume corrosion, stifling storehouse (or other the airtight facilities that can fumigate) 4, vavuum pump 6, active carbon or carbon fiber 8, temp probe 9, heating cavity 10, material with carbon element packed column 11, circulating fan 13.Wherein, Valve-off A2 and valve C12; In stifling storehouse (or airtight stifling facility) 4, after stifling the processing, open valve A2 and valve C12 with Celfume, open material with carbon element packed column valve D14 and valve B7 simultaneously; The Celfume that to fumigate in the storehouse (or other airtight stifling facilities) 4 through circulating fan 13 and pipeline 1 fully passes through material with carbon element packed column 11, and Celfume is adsorbed on the active carbon or carbon fiber 8 in the material with carbon element packed column 11 fully.Whether Celfume fully is adsorbed in active carbon or the carbon fiber 8 in stifling storehouse or the airtight stifling facility 4, can detect through Celfume concentration detector 3 and Celfume concentration detector 5.Treat active carbon or carbon fiber 8 absorption saturated back valve-off D14 and valve C12; Open vacuum pump 6; Material with carbon element packed column 11 is vacuumized, can the Celfume of active carbon in the material with carbon element packed column 11 or carbon fiber 8 absorption be taken out part to stifling storehouse (or airtight stifling facility) 4.Do not extract the also Celfume of absorption in active carbon or carbon fiber 8 out; Through firing equipment the material with carbon element packed column in the heating cavity 10 11 is heated; Heating-up temperature can separate Celfume through heating and be drawn in stifling storehouse or the airtight stifling facility 4 by temp probe 9 controls.Through vacuum drawn and heating desorption the abundant desorb of Celfume of material with carbon element packed column 11 absorption is dropped in stifling storehouse or the airtight stifling facility 4; Realized the utilization again of Celfume; Stifling ultimate density can confirm that Celfume concentration does not reach stifling requirement can replenish dispensing through the detection of Celfume concentration detector 3 and 5.
Be provided with countersunk head blind pipe 15 in the material with carbon element packed column 11; Laying temperature probe 9 in the countersunk head blind pipe 15; Temp probe 9 adopts the PT100 thermal resistance, and PT100 thermal resistance lead-in wire is drawn from the countersunk head blind pipe 15 in the material with carbon element packed column, and PT100 thermal resistance lead-in wire is connected to the digital indicator thermal resistance and inserts terminal; Give heating cavity 10 heating by digital indicator temperature alarming point control firing equipment (heater);
The material with carbon element packed column is behind the saturated Celfume of absorption, and employing vacuumizes the mode that afterwards heats earlier the Celfume in the material with carbon element packed column is carried out desorb.
Fill active carbon or carbon fiber in the material with carbon element packed column.
Heating cavity adopts the heat-conducting oil furnace mode of heating that the Celfume that adsorbs in the material with carbon element packed column is carried out desorb.
The material with carbon element packed column adopts vertical placement.
According to above-mentioned explanation, can realize scheme of the present invention in conjunction with art technology.
Claims (3)
1. the Celfume heating in vacuum is utilized system again, it is characterized in that, said system mainly is made up of heating cavity, airtight stifling facility, valve, vavuum pump and pipeline; Comprise some material with carbon element packed columns in the said heating cavity, material with carbon element packed column structure is the cavity cylinder; A pipe joint is left at upper and lower two ends of cavity cylinder respectively; Pipe laying valve on the pipe joint, pipeline valve interface external pipe; Said material with carbon element packed column is communicated with on same pipeline one through the pipe joint parallel connection of going up the bottom separately; Pipeline one is drawn the back and is connected vavuum pump from heating cavity top, be connected to airtight stifling facility upper pipe interface through vavuum pump; Said material with carbon element packed column is communicated with on same pipeline two through the pipe joint parallel connection of descending the bottom separately; Pipeline two is drawn the back and is connected circulating fan from the heating cavity bottom, be connected to airtight stifling facility lower pipeline interface through circulating fan; Be provided with the countersunk head blind pipe in the said material with carbon element packed column, laying temperature probe in the countersunk head blind pipe, the lead-in wire of temp probe PT100 thermal resistance is drawn in the material with carbon element packed column, and the lead-in wire of PT100 thermal resistance is connected to the digital indicator thermal resistance and inserts terminal; Heat to heating cavity by digital indicator temperature alarming point control firing equipment; Said airtight stifling facility is installed the Celfume concentration detector.
2. Celfume heating in vacuum as claimed in claim 1 is utilized system again, it is characterized in that, filling material with carbon element in the said material with carbon element packed column is active carbon or carbon fiber.
3. Celfume heating in vacuum as claimed in claim 1 is utilized system again, it is characterized in that, said material with carbon element packed column adopts vertical placement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105929035A CN102150651B (en) | 2010-12-17 | 2010-12-17 | System for reutilizing bromomethane by vacuum heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105929035A CN102150651B (en) | 2010-12-17 | 2010-12-17 | System for reutilizing bromomethane by vacuum heating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102150651A CN102150651A (en) | 2011-08-17 |
| CN102150651B true CN102150651B (en) | 2012-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105929035A Expired - Fee Related CN102150651B (en) | 2010-12-17 | 2010-12-17 | System for reutilizing bromomethane by vacuum heating |
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| Country | Link |
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| CN (1) | CN102150651B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104001406B (en) * | 2014-06-17 | 2015-09-30 | 黄庆林 | A kind of fumigant methyl bromide carbon fiber adsorption and catalytic combustion reclaimer and method thereof |
| CN107943118B (en) * | 2017-12-12 | 2024-06-07 | 深圳国际旅行卫生保健中心 | Container fumigation medicine administration device |
| CN109395129A (en) * | 2018-11-23 | 2019-03-01 | 天津卫技天马除害处理技术服务有限公司 | A kind of container alternate form chamber door FCL fumigation system |
| CN109395125A (en) * | 2018-11-23 | 2019-03-01 | 天津卫技天马除害处理技术服务有限公司 | A kind of high-effective disinfecting processing system of imported plants |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5824319A (en) * | 1981-08-05 | 1983-02-14 | Hitachi Plant Eng & Constr Co Ltd | Treating device for waste gas of fumigation |
| JPH01203018A (en) * | 1988-02-09 | 1989-08-15 | Kobe Steel Ltd | Pressure swing adsorption process |
| CN2805369Y (en) * | 2005-06-28 | 2006-08-16 | 中国检验检疫科学研究院 | Gas recovery apparatus |
| CN201978635U (en) * | 2010-12-17 | 2011-09-21 | 中华人民共和国天津出入境检验检疫局 | Vacuum heating and recycling device for methyl bromide |
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- 2010-12-17 CN CN2010105929035A patent/CN102150651B/en not_active Expired - Fee Related
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| CN102150651A (en) | 2011-08-17 |
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Granted publication date: 20121128 Termination date: 20181217 |