CN101946977B - Technique for processing cigarette with low HCN content - Google Patents

Abstract

The invention relates to a cigarette processing technique for reducing HCN content. The technological parameters of main work procedures are as follows: 1) microwave loosing work procedure: microwave power is 180kW, and processing time is 290s; 2) loosing dampening work procedure: steam pressure of a steam water nozzle is 0.7MPa, return air temperature is 70 DEG C, and rotating speed of barrel is13r/min; 3) HT and cut tobacco drying work procedure: HT working steam pressure is 0.10MPa, hot blast temperature is 97 DEG C, the aperture of a dampness damping throttle is 30%, the aperture of a hot blast throttle is 59%, and the rotating speed of the barrel is 13r/min; and HT is a leaf thread heating dampening work procedure carried out by adopting a tunnel type leaf thread heating dampening machine. In the invention, technological parameters of the existing work procedure are optimized, thus effectively reducing HCN content in smoke of the obtained cigarette product.

Description

A kind of cigarette technological method for processing that reduces HCN content

Technical field

The present invention relates to reduce the cigarette technological method for processing of HCN content, be specifically related to a kind of cigarette throwing emphasis procedure technology method of the HCN of reduction content.

Background technology

" prevent to contact tobacco smoke " in " Framework Convention on Tobacco Control ", " control of tobacco composition and disclosure " two criterions require national governments to work up more severe " Tobacco Control " laws and regulations; Impel tobacco productive corporation when reducing releasing content of coke tar in cigarette; More want the burst size of main harmful components in the strict control cigarette smoke; Further strengthened the pressure of industry lowering harm and decreasing coking; Smoking is the main challenge that tobacco business faces with health, and lowering harm and decreasing coking is related to the survival and development of tobacco business.

For addressing these problems, State Tobacco Monopoly Bureau has printed and distributed " State Tobacco Monopoly Bureau is about the notice of further propelling lowering harm and decreasing coking work " (No. (2006) 412, domestic cigarettes section) on June 16th, 2006, and work has proposed new requirement to lowering harm and decreasing coking.This notice will comprise that 7 kinds of harmful components of cigarette smoke of HCN are as the important indicator that characterizes cigarette mainstream flue gas biohazard property.

HCN is one of important environmental contaminants; Its mechanism of toxication is mainly cryanide ion and combines with ferric iron in the oxidized form cytochrome oxidase; Blocked ferric electronics transmission in the oxidizing process; Make histocyte can not utilize oxygen, stop up in the formation, stupor, breath stopped, serious is dead in several minutes.HCN pollutes and mainly is derived from industry synthetic, that dig up mine metallurgy, plating, weaving, agricultural chemicals, plastics, synthetic rubber etc. produce the cyanide discarded object.Also contain cyanide some plant of occurring in nature; Mainly the form with the cyanogen glycosides exists; Contain yew cyanogen glycosides in plum glycosides, the bamboo shoots as containing in semen armeniacae amarae and the butter bean to contain in amarogentin, the jowar to contain in dhurrin, the cassava to contain in linamarin, the drupe, cyanogen glycosides hydrolysis meeting produces hydrogen cyanide.HCN in the cigarette smoke is mainly produced 700-1000 ℃ of cracking by amino acid and related compound, though its content in main flume is very low, its tool cilium toxicity is inhibitor very active in several kinds of respiratory enzymes, and is very harmful to human body.

For further promoting the enforcement of the strategic problem of tobacco business lowering harm and decreasing coking; Advance carrying out in a deep going way of cigarette lowering harm and decreasing coking work; State Tobacco Monopoly Bureau has printed and distributed " State Tobacco Monopoly Bureau is about the suggestion of further propelling lowering harm and decreasing coking work " (No. (2008) 471, domestic cigarettes section) on August 27th, 2008; Clearly propose; By 2010, national cigarette reduces in selectivity was obtaining remarkable breakthrough aspect 7 kinds of harmful components such as HCN, formed a collection ofly to have the core technology of independent intellectual property right and in industry focus shaft cigarette brand, be applied.And think and should strengthen raw tobacco material, cigarette processing technology and the auxiliary material design influence research to harmful components burst size in the cigarette smoke, for lowering harm and decreasing coking application technical research and low harm product development are provided fundamental basis.

How to reduce the HCN content in the cigarette mainstream flue gas, reduce the harm of smoking, many researchs are arranged in recent years health.This type of research mainly is that adsorbent or the filtering material that the adding special material is processed in cigarette realized.Like international patent application no is that the patent of invention of PCT/US2005/0144762005.4.27 has proposed a kind of smoking article filter that has the porous resin of the high surface area/mass ratio of tool, and this resin is made up of chitosan derivatives.Embodiment preferred comprise with the mutually crosslinked shitosan of glutaraldehyde and with the mutually crosslinked shitosan of glyoxal, said chitosan derivatives alternative is removed the hydrogen cyanide in the smoke from cigarette.But cigarette technology for making tobacco threds parameter is not also appeared in the newspapers to the influence of HCN content in the cigarette mainstream flue gas so far.

Summary of the invention

The cigarette technological method for processing that the purpose of this invention is to provide a kind of HCN of reduction content is through the combination of process parameters at cigarette silk producing procedures optimizing application, to reduce HCN burst size in the cigarette smoke.

The objective of the invention is to realize like this: a kind of cigarette technological method for processing of the HCN of reduction content, main by the loose operation of the microwave that carries out in order, loosening and gaining moisture operation and HT+ drying process are formed, and the concrete technological parameter of operation is following:

1), the loose operation of microwave: microwave power 180KW, process time 290s;

2), loosening and gaining moisture operation: vapour, (operating) water nozzle steam pressure 0.7MPa, 70 ℃ of return air temperatures, drum speed 13r/min;

3), HT and drying process: HT working steam pressure 0.10MPa, 97 ℃ of hot blast temperatures, humidity discharging throttle opening 30%, hot blast throttle opening 59%, drum speed 13r/min;

The leaf silk warming and humidifying operation of HT for adopting tunnel type leaf silk warming and humidifying machine to carry out.

Optimize combination of process parameters accordingly in above each processes employ, can effectively reduce HCN content in the obtained cigarette product flue gas.

The invention has the beneficial effects as follows from cigarette processing technology angle and explored cigarette lowering harm and decreasing coking new way, have important significance for theories and actual application value.

Description of drawings

The main technological process figure of the cigarette throwing that Fig. 1 the present invention relates to.

The specific embodiment

Below in conjunction with embodiment the present invention is done further elaboration.

Embodiment 1:

To produce the tobacco sample that obtains as blank sample by set cigarette technology for making tobacco threds parameter; In the loose operation of microwave, press the optimization working process parameter combination adjusting process parameter of microwave power 180KW, process time 290s, all the other procedure technology parameter constants are produced the tobacco sample that obtains for optimizing sample; The flue gas HCN content detection of two samples is seen table 1.

Loose process optimization sample of table 1 microwave and blank sample HCN content detection result

Can find out that by table 1 HCN content has reduced by 8.12% than blank sample in the tobacco sample flue gas that production obtains under the loose optimization combination of process parameters of microwave, has tangible reduction HCN content effect.

Embodiment 2:

To produce the tobacco sample that obtains as blank sample by set cigarette technology for making tobacco threds parameter; In the loosening and gaining moisture operation; Press the optimization working process parameter combination adjusting process parameter of vapour, (operating) water nozzle steam pressure 0.7MPa, 70 ℃ of return air temperatures, drum speed 13r/min; All the other procedure technology parameter constants are produced the tobacco sample that obtains and are the optimization sample; The flue gas HCN content detection of two samples is seen table 2.

Table 2 loosening and gaining moisture process optimization sample and blank sample HCN content detection result

Can find out that by table 2 HCN content has reduced by 18.86% than blank sample in the tobacco sample flue gas that production obtains under loosening and gaining moisture optimization combination of process parameters, has tangible reduction HCN content effect.

Embodiment 3:

To produce the tobacco sample that obtains as blank sample by set cigarette technology for making tobacco threds parameter; In the HT+ drying process; Press the optimization working process parameter combination adjusting process parameter of HT working steam pressure 0.10MPa, 97 ℃ of hot blast temperatures, humidity discharging throttle opening 30%, hot blast throttle opening 59%, drum speed 13r/min; All the other procedure technology parameter constants are produced the tobacco sample that obtains and are the optimization sample; The flue gas HCN content detection of two samples is seen table 3.

Table 3HT+ drying process is optimized sample and blank sample HCN content detection result

Can find out that by table 3 HCN content has reduced by 42.11% than blank sample in the tobacco sample flue gas that production obtains under HT+ baking silk optimization combination of process parameters, has tangible reduction HCN content effect.

Steam pressure is gauge pressure among this paper.

Hydrogen cyanide: detect according to " the mensuration continuous flow method of hydrogen cyanide in the YC/T 253-2008 cigarette mainstream flue gas ".

Some explanation:

1, about the horizontally selective limiting factor of patent technological parameter:

Because it is actual that this patent is applied to suitability for industrialized production, therefore, mainly receive the restriction of following objective condition about the selection of parameter horizontal extent:

(1) restriction of the horizontal extent of process equipment own, working ability;

(2) the cigarette product aesthetic quality fluctuation that obtains after the parameter adjustment can not be too big, otherwise can influence acceptance and the degree of recognition of consumer to product.

2, about optimizing the stability of producing under the combination of process parameters:

The index detected value that this patent obtains under the optimization combination of process parameters is three explained hereafter products and detects mean value.

Claims (1)

1. a cigarette technological method for processing that reduces HCN content is main by the loose operation of the microwave that carries out in order, loosening and gaining moisture operation and HT+ drying process composition, and it is characterized in that: the concrete technological parameter of said operation is following:

1), the loose operation of microwave: microwave power 180KW, process time 290s;

2), loosening and gaining moisture operation: vapour, (operating) water nozzle steam pressure 0.7MPa, 70 ℃ of return air temperatures, drum speed 13r/min;

3), HT and drying process: HT working steam pressure 0.10MPa, 97 ℃ of hot blast temperatures, humidity discharging throttle opening 30%, hot blast throttle opening 59%, drum speed 13r/min;

The leaf silk warming and humidifying operation of HT for adopting tunnel type leaf silk warming and humidifying machine to carry out.

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