CN101961138A

CN101961138A - Method for processing cigarettes with low heavy metal Cr content

Info

Publication number: CN101961138A
Application number: CN 201010288220
Authority: CN
Inventors: 李东亮; 戴亚; 薛芳; 王鹏; 李力
Original assignee: China Tobacco Chuanyu Industrial Co Ltd
Current assignee: China Tobacco Chuanyu Industrial Co Ltd
Priority date: 2010-09-21
Filing date: 2010-09-21
Publication date: 2011-02-02
Anticipated expiration: 2030-09-21
Also published as: CN101961138B

Abstract

The invention relates to a method for processing cigarettes with low heavy metal Cr content. The specific process parameters of main processes are that: 1) in a microwave loose process, microwave power is 121KW and processing time is 240s; 2) in a loose dampening process, the steam pressure of a moisture nozzle is 0.1MPa, hot-blast temperature is 67 DEG C and the rotating speed of a cylinder is 9r/min; and 3) in an HT and tobacco shred drying process, HT working steam pressure is 0.6MPa, the hot-blast temperature is 85 DEG C, the opening degree of a dehumidifying air door is 31 percent, the opening degree of a hot-blast air door is 30 percent and the rotating speed of the cylinder is 12r/min; and the HT is a process for heating and humidifying tobacco shred by using a tunnel tobacco shred heating and humidifying machine. The heavy metal Cr content of smoke of cigarette products is effectively reduced by optimizing the process parameters of the conventional process.

Description

The cigarette technological method for processing of a kind of low-heavy metal content Cr

Technical field

The present invention relates to the method for tobacco cutting, be specifically related to the cigarette technological method for processing of a kind of low-heavy metal content Cr.

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.State Tobacco Monopoly Bureau clearly proposed in 2008 to strengthen raw tobacco material, cigarette processing technology and auxiliary material design to cigarette smoke in the influence research of harmful components burst size, for lowering harm and decreasing coking application technical research and low harm product development are provided fundamental basis.The Cr element is put into 43 kinds of harmful components lists in the tobacco as far back as nineteen ninety, and is listed in human body one-level carcinogen by international cancer research institution.Chromium is the very strong teratogenesis of a kind of toxicity, mutagenesis and carcinogenic heavy metal element, after being absorbed by body, drains very slow naturally.Cr in the cigarette enters human body by the flue gas that sucks burning, and the harm consumer's is healthy.At present, mainly concentrate on the analytical method for the research of harmful element Cr in the tobacco, the Cr that how to reduce in the tobacco does not appear in the newspapers.

Summary of the invention

The cigarette technological method for processing that the purpose of this invention is to provide a kind of low-heavy metal content Cr, set about by the loose operation of microwave from the cigarette processing technology, loosening and gaining moisture operation, these three procedure technology parameters of HT+ drying process, explore the cigarette technological method for processing of low-heavy metal content chromium.

The object of the present invention is achieved like this: the cigarette technological method for processing of a kind of low-heavy metal content Cr, and main by the loose operation of the microwave that carries out in turn, loosening and gaining moisture operation and HT+ drying process are formed, and the concrete technological parameter of operation is as follows:

1), the loose operation of microwave: microwave power 121KW, process time 240s;

2), loosening and gaining moisture operation: steam nozzle steam pressure 0.1Mpa, 67 ℃ of hot blast temperatures, drum speed 9r/min;

3), HT and drying process: HT working steam pressure 0.6Mpa, 85 ℃ of hot blast temperatures, humidity discharging throttle opening 31%, hot blast throttle opening 30%, drum speed 12r/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 Metal Cr 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 tobacco flow process chart that Fig. 1 the present invention relates to.

The specific embodiment

The present invention is further elaborated below in conjunction with embodiment.

Embodiment 1:

In the loose operation of technology for making tobacco threds microwave, be the basic process parameter with the loose procedure technology parameter of the microwave of focus shaft brand cigarette, carry out tobacco cutting with this basic process parameter, the tobacco sample of generation is a blank sample; The tobacco sample of producing according to the optimization parameter of step 1 is the optimization sample, and the result is as follows:

The content of the loose operation tobacco sample of table 1 microwave Cr

The sample title	Microwave power (KW)	Process time (second)	Cr(μg/g)
				Blank sample	140	320	3.14
Blank sample 1	180	300	2.82
				Blank sample 2	150	360	2.91
Blank sample 3	120	240	2.69
				Comparative sample	121	240	2.73

As can be seen from Table 1, the content that the tobacco that obtains that produces under the microwave loosening technique parameter combinations of optimizing is optimized Cr in the sample has reduced by 13.06% than blank sample, and it is obvious to reduce effect.

Embodiment 2:

In the technology for making tobacco threds loosening and gaining moisture operation, be the basic process parameter with the loosening and gaining moisture procedure technology parameter of focus shaft brand cigarette, carry out tobacco cutting with this basic process parameter, the tobacco sample of generation is a blank sample; The tobacco sample of producing according to the optimization parameter of step 2 is the optimization sample, and the result is as follows:

The content of table 2 loosening and gaining moisture operation tobacco sample Cr

As can be seen from Table 2, the content of Cr has reduced by 18.47% than blank sample in the optimization sample of producing under the loosening and gaining moisture combination of process parameters of having optimized, and it is obvious to reduce effect.

Embodiment 3:

In the technology for making tobacco threds HT+ drying process, be the basic process parameter with the HT+ drying process technological parameter of focus shaft brand cigarette, carry out tobacco cutting with this basic process parameter, the tobacco sample of generation is a blank sample; The tobacco sample of producing according to the optimization parameter of step 3 is the optimization sample, and the result is as follows:

The content of table 3HT+ drying process tobacco sample Cr

As can be seen from Table 3, the content of Cr reduces comparatively obviously 66.56% in the optimization sample of producing under the HT+ baking silk combination of process parameters of having optimized than blank sample, and it is obvious to reduce effect.

Steam pressure is gauge pressure herein.

The crome metal Determination on content adopts the disclosed plasma mass method of document " micro-wave digestion-inductively coupled plasma mass spectrometry is measured 27 kinds of elements in the tobacco simultaneously " (spectroscopy and spectrum analysis, the 27th volume, the 6th phase, in June, 2007).

Some explanation:

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

Because this patent is applied to suitability for industrialized production reality, therefore, mainly be subjected to 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. the cigarette technological method for processing of a low-heavy metal content Cr is main by the loose operation of the microwave that carries out in turn, loosening and gaining moisture operation and HT+ drying process composition, and it is characterized in that: the concrete technological parameter of described operation is as follows:

1), the loose operation of microwave: microwave power 121KW, process time 240s;