阅读说明：本技术 一种打叶复烤预处理装置及其水分控制方法 (Threshing and redrying pretreatment device and moisture control method thereof ) 是由 许强 胡宗玉 李少鹏 陈尚上 钱建財 周子方 王震 李�雨 于 2019-10-18 设计创作，主要内容包括：本发明公开了一种打叶复烤预处理装置及水分控制方法,包括铺叶台和烟叶切断台,在所述铺叶台和烟叶切断台之间设置一个除尘加湿装置；所述除尘加湿装置包括上进风区和下进风区,所述铺叶台、下进风区、上进风区、烟叶切断台依次紧靠设置；所述上进风区和下进风区底面为振动式皮带机,所述振动式皮带机的皮带采用网式皮带；下进风区用于通入从下而上的高湿度热风,上进风区用于通入从上而下的高湿度热风。优点：烟叶经过时通入高湿度的热风,可除去烟叶表面大部分的灰尘与较轻的杂物,并且可增加烟叶的温度、含水率及柔软度,降低后续切断与运输过程中的造碎。简单易行,可大大减少打叶车间空气中粉尘,去除部分较轻杂物以及降低烟叶损耗。(The invention discloses a threshing and redrying pretreatment device and a moisture control method, wherein the threshing and redrying pretreatment device comprises a leaf laying platform and a tobacco leaf cutting platform, and a dust removal and humidification device is arranged between the leaf laying platform and the tobacco leaf cutting platform; the dedusting and humidifying device comprises an upper air inlet area and a lower air inlet area, and the leaf laying platform, the lower air inlet area, the upper air inlet area and the tobacco leaf cutting platform are arranged closely in sequence; the bottom surfaces of the upper air inlet area and the lower air inlet area are vibration type belt conveyors, and the belts of the vibration type belt conveyors are net type belts; the lower air inlet area is used for introducing high-humidity hot air from bottom to top, and the upper air inlet area is used for introducing high-humidity hot air from top to bottom. The advantages are that: the tobacco leaves are introduced with high-humidity hot air when passing through, most of dust and light impurities on the surfaces of the tobacco leaves can be removed, the temperature, the water content and the flexibility of the tobacco leaves can be increased, and the breakage in the subsequent cutting and transportation processes is reduced. The method is simple and easy to implement, and can greatly reduce dust in the air of the threshing workshop, remove part of lighter impurities and reduce the loss of tobacco leaves.)

1. A threshing redrying pretreatment device comprises a leaf laying platform and a tobacco leaf cutting platform, and is characterized in that a dust removal and humidification device is arranged between the leaf laying platform and the tobacco leaf cutting platform;

the dedusting and humidifying device comprises an upper air inlet area and a lower air inlet area, and the leaf laying platform, the lower air inlet area, the upper air inlet area and the tobacco leaf cutting platform are arranged closely in sequence; the bottom surfaces of the upper air inlet area and the lower air inlet area are vibration type belt conveyors, and the belts of the vibration type belt conveyors are net type belts; the lower air inlet area is used for introducing high-humidity hot air from bottom to top, and the upper air inlet area is used for introducing high-humidity hot air from top to bottom.

2. The threshing and redrying pretreatment apparatus of claim 1, wherein the outer shell parts of the upper air intake zone and the lower air intake zone are made of organic transparent glass.

3. The threshing and redrying pretreatment device of claim 1, wherein the upper air inlet area and the lower air inlet area are both provided with an air inlet and an air outlet, the air inlet is used for introducing high-humidity hot air, the air outlet is provided with a bag type dust collector and is used for collecting discharged ash and light impurities, and the discharged high-humidity hot air is recycled through a pipeline or directly discharged outdoors.

4. A threshing and redrying pretreatment apparatus as claimed in claim 1, wherein a partition is provided between the upper air intake zone and the lower air intake zone, said partition being provided with a passage for tobacco leaves only at the lower end.

5. A threshing and redrying pretreatment apparatus as claimed in claim 1, further comprising a power supply for powering the entire apparatus.

6. The threshing and redrying pretreatment device of claim 1, wherein the dedusting and humidifying device further comprises a near-infrared moisture meter respectively installed at:

the outer side of the lower air inlet area is used for collecting a first tobacco moisture value on the leaf paving table;

the interior of the junction of the upper air inlet area and the lower air inlet area is used for collecting a second tobacco moisture value transmitted from the lower air inlet area to the upper air inlet area;

the outer side of the upper air inlet area is used for collecting a third tobacco moisture value on the tobacco cutting table;

and respectively transmitting the moisture values of the tobacco leaves to a control module, wherein the control module is used for adjusting the humidity of high-humidity hot air and wind power according to the collected moisture information.

7. The moisture control method based on the threshing and redrying pretreatment device of claim 6, characterized in that the control module obtains the moisture value of the first tobacco, compares the moisture value of the first tobacco with a preset information value of moisture before treatment, if not less than the moisture value of the first tobacco, the humidity and the wind power of high-humidity hot air are kept in the I gear, and if less than the moisture value of the first tobacco, the humidity and the wind power are kept in the II gear;

the control module acquires a second tobacco leaf moisture value, compares the second tobacco leaf moisture value with a preset processing moisture information value, if the second tobacco leaf moisture value is not smaller than the preset processing moisture information value, the humidity of the high-humidity hot air and the wind power are kept at a gear controlled according to the comparison of the first tobacco leaf moisture value, and if the second tobacco leaf moisture value is smaller than the preset processing moisture information value, the humidity and the wind power are kept at a gear III;

the control module acquires a moisture value of a third tobacco leaf, compares the moisture value of the third tobacco leaf with a preset processed moisture information value, if not, the humidity of high-humidity hot air and the wind power are kept at a gear controlled according to the comparison of the moisture value of the second tobacco leaf, and if not, the humidity and the wind power are kept at an IV gear; the humidity and the wind power of each gear are sequenced as follows: the IV gear is more than the III gear, more than the II gear and more than the I gear;

the priority sequence of the control module for controlling the gears is as follows: the comparison result of the moisture value of the third tobacco leaf is prior to the comparison result of the moisture value of the second tobacco leaf and prior to the comparison result of the moisture value of the first tobacco leaf.

Technical Field

The invention relates to a threshing and redrying pretreatment device and a moisture control method thereof, belonging to the technical field of tobacco processing.

Background

Threshing and redrying are the technological process of producing tobacco strips by separating and redrying tobacco leaves and stems. Before the leaf and stem separation process, the tobacco leaves are subjected to a series of pretreatment: generally comprises the procedures of sorting, vacuum moisture regain, leaf laying and cutting, primary leaf wetting, sand screening, impurity removal (air separation and manual work), secondary leaf wetting and the like.

At present, in the threshing and redrying process, dust in a workshop is generally more, and especially when lower smoke is processed, dust in the environment of the workshop is more prominent. After the tobacco leaves are subjected to primary tobacco leaf moistening and temperature increasing, less dust is generated in the subsequent processing process, and the dust is mainly generated in the transportation process before the primary tobacco leaf moistening process, and the transportation process comprises tobacco leaf climbing, blanking, rolling and the like. The main reasons for more dust in the workshop are as follows:

(1) with the push of large brands of cigarette industry enterprises, the scale of a single module is larger and larger, the time for storing tobacco leaves in a temporary storage is prolonged after the tobacco leaves are sorted and put into a frame column, certain moisture loss is caused, and the tobacco leaves are easier to bring dust into ambient air in the cutting and transporting processes.

(2) Because of the high processing intensity of vacuum moisture regain, the tobacco leaves are subjected to high temperature and vacuum treatment in the moisture regain process, the fragrance of the tobacco leaves is lost, and the tobacco leaves are basically abandoned in the actual production process, especially in Yunnan places, Fujian places and the like.

Disclosure of Invention

The invention aims to solve the technical problem of overcoming the defect of more dust in the tobacco processing process in the prior art and provides a threshing and redrying pretreatment device and a moisture control method thereof.

In order to solve the technical problem, the invention provides a threshing and redrying pretreatment device which comprises a leaf laying platform and a tobacco leaf cutting platform and is characterized in that a dust removal and humidification device is arranged between the leaf laying platform and the tobacco leaf cutting platform;

the dedusting and humidifying device comprises an upper air inlet area and a lower air inlet area, and the leaf laying platform, the lower air inlet area, the upper air inlet area and the tobacco leaf cutting platform are arranged closely in sequence; the bottom surfaces of the upper air inlet area and the lower air inlet area are vibration type belt conveyors, and the belts of the vibration type belt conveyors are net type belts which are used for conveying tobacco leaves and vibrating the tobacco leaves at the same time, so that dust is conveniently discharged; the lower air inlet area is used for introducing high-humidity hot air from bottom to top; the upper air inlet area is used for introducing high-humidity hot air from top to bottom.

Furthermore, the outer shell parts of the upper air inlet area and the lower air inlet area are made of organic transparent glass. The internal situation is conveniently observed.

Further, go up the air inlet district and all be equipped with air intake and air outlet with lower air inlet district, the air intake is used for letting in high humidity hot-blast, the air outlet is provided with bag collector for collect exhaust ash and lighter debris, the hot-blast pipe cycle of passing through of exhaust high humidity is used or directly the discharge is outdoor.

Furthermore, a partition plate is arranged between the upper air inlet area and the lower air inlet area, and a channel for passing through tobacco leaves is only arranged at the lower end of the partition plate. The tobacco leaves can be conveniently transmitted in different air inlet areas, and the air can not be mixed in the two air inlet areas.

Furthermore, the device also comprises a power supply which is used for supplying power to the whole device.

Further, dust removal humidification device still includes near-infrared moisture meter, installs respectively in:

the outer side of the lower air inlet area is used for collecting a first tobacco moisture value on the leaf paving table;

the interior of the junction of the upper air inlet area and the lower air inlet area is used for collecting a second tobacco moisture value transmitted from the lower air inlet area to the upper air inlet area;

the outer side of the upper air inlet area is used for collecting a third tobacco moisture value on the tobacco cutting table;

the control module is used for adjusting the humidity and the wind power of the high-humidity hot air according to the collected moisture information.

A moisture control method of a threshing and redrying pretreatment device is characterized in that a control module acquires a first tobacco moisture value, compares the first tobacco moisture value with a preset moisture information value before treatment, if the first tobacco moisture value is not smaller than the preset moisture information value before treatment, the humidity and the wind power of high-humidity hot air are kept in a gear I, and if the first tobacco moisture value is smaller than the preset moisture information value before treatment, the humidity and the wind power are kept in a gear II;

the control module acquires a second tobacco leaf moisture value, compares the second tobacco leaf moisture value with a preset processing moisture information value, if the second tobacco leaf moisture value is not smaller than the preset processing moisture information value, the humidity of the high-humidity hot air and the wind power are kept at a gear controlled according to the comparison of the first tobacco leaf moisture value, and if the second tobacco leaf moisture value is smaller than the preset processing moisture information value, the humidity and the wind power are kept at a gear III;

the control module acquires a moisture value of a third tobacco leaf, compares the moisture value of the third tobacco leaf with a preset processed moisture information value, if not, the humidity of high-humidity hot air and the wind power are kept at a gear controlled according to the comparison of the moisture value of the second tobacco leaf, and if not, the humidity and the wind power are kept at an IV gear;

the humidity and the wind power of each gear are sequenced as follows: the IV gear is more than the III gear, more than the II gear and more than the I gear;

the priority order of the control gears is as follows: the comparison result of the moisture value of the third tobacco leaf is prior to the comparison result of the moisture value of the second tobacco leaf and prior to the comparison result of the moisture value of the first tobacco leaf.

The humidity of the tobacco leaves at each stage in the device is judged through the three moisture sensors, the tobacco leaves can be accurately humidified, and gear control and resource saving can be reasonably realized through setting of the priority.

The invention achieves the following beneficial effects:

according to the invention, hot air with high humidity is introduced when the tobacco leaves pass through, most of dust and light impurities on the surfaces of the tobacco leaves can be removed, the temperature, the water content and the flexibility of the tobacco leaves can be increased, and the breakage in the subsequent cutting and transportation processes can be reduced. The method is simple and easy to implement, and can greatly reduce dust in the air of the threshing workshop, remove part of lighter impurities and reduce the loss of tobacco leaves.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic top view of the present invention;

fig. 3 is a side view of the present invention.

In the figure, 1 is a leaf paving table, 2 is a tobacco leaf cutting table, 3 is a lower air inlet area, 4 is an upper air inlet area, 5 is a vibrating type belt conveyor, 6 is an air inlet, 7 is an air outlet, 8 is a near-infrared moisture sensor, 9 is a net type belt, and 10 is a gap.

Detailed Description

The invention is further described below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

As shown in fig. 1-3, a threshing and redrying pretreatment device comprises a leaf laying platform 1 and a tobacco leaf cutting platform 2, wherein a dust removal and humidification device is arranged between the leaf laying platform and the tobacco leaf cutting platform; the whole device is powered by an external power supply, and a power supply on-off switch can be arranged on the front side surface of the tobacco leaf cutting table and used for controlling the on-off of the power supply.

The dedusting and humidifying device comprises an upper air inlet area 4 and a lower air inlet area 3 (the upper air inlet area 4 and the lower air inlet area 3 form a box body without a bottom surface and are arranged above the vibrating type belt conveyor 5, gaps 10 are formed at the bottom ends of the left surface and the right surface of the box body, so that tobacco leaves can move conveniently, and the leaf paving table 1, the lower air inlet area 3, the upper air inlet area 4 and the tobacco leaf cutting table 2 are arranged in a close manner in sequence; the bottom surfaces of the upper air inlet area 4 and the lower air inlet area 3 are provided with vibrating belt conveyors 5, and the belts of the vibrating belt conveyors 5 adopt net-type belts 9, so that the tobacco leaves are vibrated while being conveyed, and dust is conveniently discharged; the lower air inlet area 3 is used for introducing high-humidity hot air from bottom to top (lower air inlet is used for conveniently removing dust and light and thin sundries, particularly sundries which cannot pass through a mesh belt conveniently can be removed and prevented from being blocked), the upper air inlet area 4 is used for introducing high-humidity hot air from top to bottom (upper air inlet enables tobacco leaves to be attached to a leaf laying table and not to be blown away easily and facilitates subsequent cutting, dust removal, impurity removal and wetting of the whole leaf are facilitated through an upper air inlet mode and a lower air inlet mode, the phenomenon that the tobacco leaves cannot be wetted completely due to overlapping is avoided), the temperature of the high-humidity hot air is controlled to be (35 +/-5) DEG C, the humidity is controlled to be 80-100%, and the air speed is controlled to be 3-10 m/. The high humidity hot air may be provided by a hot air blower and a humidifier.

In this embodiment, the outer shell portions of the upper air inlet area 4 and the lower air inlet area 3 are made of organic transparent glass. The internal situation is conveniently observed.

In this embodiment, go up air inlet zone 4 and lower air inlet zone 3 and all be equipped with air intake 6 and air outlet 7, air intake 6 is used for letting in high humidity hot-blast, air outlet 7 is used for discharging the wind that has dust and lighter debris, sets up the bag collector in air outlet 7 department, and the ash of discharge and lighter debris can be collected through the bag collector, and the hot-blast outside pipeline cycle of can passing through of exhaust high humidity is used or direct discharge is outdoor.

In this embodiment, a partition plate is arranged between the upper air inlet area 4 and the lower air inlet area 3, and the partition plate is only provided with a channel 10 for passing through tobacco leaves at the lower end.

In this embodiment, the dust removal humidification device further includes 3 near-infrared moisture meters 8 (MCT 460 near-infrared moisture meter), which are respectively installed in:

the outer side of the lower air inlet area is used for collecting a first tobacco moisture value on the leaf paving table;

the interior of the junction of the upper air inlet area and the lower air inlet area is used for collecting a second tobacco moisture value transmitted from the lower air inlet area to the upper air inlet area;

the outer side of the upper air inlet area is used for collecting a third tobacco moisture value on the tobacco cutting table;

the 3 near-infrared moisture meters 8 are electrically connected to the control module and used for respectively transmitting the moisture values of the tobacco leaves to the control module, and the control module is used for adjusting the humidity of high-humidity hot air and wind power according to the collected moisture information.

The control module is used for judging the collected moisture value of the tobacco leaves and adjusting the humidity, the temperature and the wind power.

A threshing and redrying pretreatment device and a moisture control method are disclosed, wherein a control module acquires a first tobacco moisture value, compares the first tobacco moisture value with a preset pre-treatment moisture information value, if the first tobacco moisture value is not less than the preset pre-treatment moisture information value, the humidity and the wind power of high-humidity hot air are kept in a gear I, and if the first tobacco moisture value is less than the preset pre-treatment moisture information value, the humidity and the wind power of high-humidity hot air are kept in a gear II;

the control module acquires a second tobacco leaf moisture value, compares the second tobacco leaf moisture value with a preset processing moisture information value, if the second tobacco leaf moisture value is not smaller than the preset processing moisture information value, the humidity of the high-humidity hot air and the wind power are kept at a gear controlled according to the comparison of the first tobacco leaf moisture value, and if the second tobacco leaf moisture value is smaller than the preset processing moisture information value, the humidity and the wind power are kept at a gear III;

the control module acquires a moisture value of a third tobacco leaf, compares the moisture value of the third tobacco leaf with a preset processed moisture information value, if not, the humidity of high-humidity hot air and the wind power are kept at a gear controlled according to the comparison of the moisture value of the second tobacco leaf, and if not, the humidity and the wind power are kept at an IV gear;

the humidity and the wind power of each gear are sequenced as follows: the IV gear is more than the III gear, more than the II gear and more than the I gear;

the priority order of the control gears is as follows: the comparison result of the third tobacco leaf moisture value is prior to the comparison result of the second tobacco leaf moisture value and prior to the comparison result of the first tobacco leaf moisture value: for example, the gear controlled by comparing the moisture value of the first tobacco leaf is the I gear or the II gear, and the moisture of the tobacco leaf at the position obtained by comparing the moisture value of the second tobacco leaf is smaller than the preset value, then the control module directly switches the gear to the III gear according to the comparison result that the priority is larger than the moisture of the first tobacco leaf, even if the moisture of the tobacco leaf obtained by comparing the moisture value of the first tobacco leaf is larger than the preset value; similarly, if the moisture of the tobacco leaves obtained by comparing the moisture value of the third tobacco leaves is smaller than the preset value, the control module can preferentially control the moisture value to be IV. If the moisture obtained by comparing the moisture value of the third tobacco leaves is not less than the preset value, the gear state is obtained by comparing the moisture value of the second tobacco leaves, and if the moisture obtained by comparing the moisture value of the second tobacco leaves is not less than the preset value, the gear state is obtained by comparing the moisture value of the first tobacco leaves.

The humidity of the tobacco leaves at each stage in the device is judged through the three near-infrared moisture meters, the tobacco leaves can be accurately humidified, and gear control and resource saving can be reasonably realized through setting of priorities.

It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and they may alternatively be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, or fabricated separately as individual integrated circuit modules, or fabricated as a single integrated circuit module from multiple modules or steps. Thus, the present invention is not limited to any specific combination of hardware and software.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.