CN107890995B - A pipe-type tobacco stem removal equipment for light impurities - Google Patents

Abstract

A kind of duct type offal removing light impurities equipment, selection by winnowing cabinet including being fixed on feed belt machine discharge port, top is connected with supplied materials belt discharge bucket flange, the side of selection by winnowing cabinet, which offers, mends wind adjusting mouth, it is equipped at the main air inlet of lower section and adjusts wind deflector, the discharge port of selection by winnowing cabinet is connected to by conveyance conduit with the miscellaneous feeder that separates of gas, the first striker plate and the second striker plate are provided in the miscellaneous separation feeder of gas, lower section is equipped with flanged joint impurity removal gas lock, and the miscellaneous separation feeder rear of gas is equipped with tune air hose；First striker plate is the reclinate arc panel of arc, is located at the miscellaneous separation feeder inlet of gas, the second striker plate be it is horizontally disposed, at the close tune air hose in the opposite side of the first striker plate.The configuration of the present invention is simple, mechanical friction effect is small, material make it is broken be obviously reduced, material utilization is high, while reducing equipment energy consumption, and system carries out selection by winnowing under negative pressure state, guarantees that dust will not be excessive, therefore can carry out the removal of impurities work of large quantities of content of starting materials offals.

Description

A pipe-type tobacco stem removal equipment for light impurities

technical field

The invention relates to the field of wind power sorting equipment, in particular to a pipe-type tobacco stem removal light impurity equipment.

Background technique

The principle of airflow air separation is mainly to use airflow to float a certain material, and set the corresponding airflow speed according to the material sorting, so that the material whose suspension speed is lower than the set airflow speed moves downward, otherwise it moves in the opposite direction.

At present, in the tobacco production process, the raw tobacco stems generally contain many impurities, and the light-density impurities mainly include dust, hemp hair, paper pieces, labels, plastic pieces, chicken feathers, and dust produced by mutual extrusion during transportation. Minced etc. If lighter debris (such as chicken feathers, plastic sheets, etc.) enters the finished cigarette, the smell will be abnormal when smoking, which will affect the quality of the product. Therefore, it is necessary to remove the light impurities in the raw tobacco stems in the tobacco stem pretreatment section.

At the present stage, the process of removing light impurities from tobacco stems in the cigarette shredded production line generally adopts on-site winnowing machines for tobacco stems, and removes relatively light impurities through the combination of floatation and flotation. During the process, the dust, flax, paper pieces, labels, plastic pieces, chicken feathers, etc. that are lighter than the tobacco stems will be separated from the tobacco stems through the principle of flotation and drifting and discharged from the miscellaneous air lock, thereby completing the process of removing light impurities. However, due to the large size of the winnowing machine, the high feeding position and other factors occupy a lot of space on the site, and the position of the light miscellaneous discharge is fixed, it cannot be transported for a long distance and the debris collection site cannot be selected, resulting in the on-site winnowing machine type light miscellaneous removal equipment There are certain limitations in use.

To sum up, the existing equipment and technology occupy a large area when removing light impurities from tobacco stems, and the location of the impurities is fixed, which increases the problems of the debris transfer process and the labor intensity of employees.

Contents of the invention

Aiming at the problems existing in the above-mentioned prior art, the present invention provides a pipe-type tobacco stem light miscellaneous removal equipment, which can carry out the light miscellaneous removal of tobacco stems on the spot while occupying as little space as possible, and at the same time can select the miscellaneous The collection site and keep the production site environment clean, simple structure, small mechanical friction, significantly reduced material crushing, high material utilization rate, and reduced equipment energy consumption.

The technical scheme adopted in the present invention is:

A pipe-type tobacco stem removal equipment, including a winnowing box fixed at the outlet of the feeding belt conveyor, the upper part is connected with the flange of the hopper of the incoming material belt, and the side of the winnowing box is provided with a supplementary air adjustment There is an air regulating deflector installed at the main air inlet below, and the discharge port of the winnowing box is connected with the gas miscellaneous separation and dosing device through the conveying pipeline, and the gas miscellaneous separation and dosing device is provided with a first baffle plate and The second baffle plate is equipped with a flange connection outlet air lock at the bottom, and an air regulating pipe is equipped behind the air miscellaneous separation and discharge device; the first material baffle plate is an arc-shaped downward-curved arc plate, which is located in the air miscellaneous separation At the entrance of the feeder, the first material baffle is used to change the wind direction and the movement direction of the material, and the horizontally moving light debris is changed to move downward through the first material baffle, so that the material falls to the miscellaneous air lock. , the second material baffle is set horizontally and is located on the opposite side of the first material baffle near the air regulating duct.

Further, the air regulating deflector is installed at the bottom of the winnowing box, one end of the air regulating deflector is fixed with a hinge, and the other end is adjustable.

Compared with the prior art, the winnowing box of the present invention adopts a new structure, the raw tobacco stems fall into the winnowing box from the feed port, and are floated in the vertical picking box under the action of the lower main air inlet. Flotation is carried out under the action of supplementary air to the supplementary air adjustment port. By adjusting the size of the supplementary air port and the angle of the lower air regulating deflector, the clean tobacco stems, light impurities and dust can be effectively analyzed, so that the clean tobacco stems can be separated from the winnowing box The lower outlet enters the next process, and the light impurities and dust are sucked into the side pipe and transported to the air separation and discharge device; at the same time, the dust removal air is introduced from one end of the air separation and discharge device. The relative position of the first material baffle plate and the second material baffle plate separates light impurities and dust to the greatest extent. The light impurities fall into the bottom and are discharged from the air outlet lock. The dust is pumped to the dust removal room with the dust removal wind. The feeders are all in a negative pressure state, which ensures that the dust will not overflow during the whole winnowing process and keeps the site environment clean.

Description of drawings

Fig. 1 is a side sectional view of the pipeline type tobacco stem removal equipment for light impurities of the present invention;

Fig. 2 is a top view of the pipe-type tobacco stem removal equipment of the present invention.

In the figure: 1—wind separation box, 2—air supply adjustment port, 3—air adjustment deflector, 4—conveyor pipeline, 5—air miscellaneous separation and blanking device, 6—the first baffle plate, 7—the first Two baffle plates, 8—air regulating pipe, 9—outlet miscellaneous air lock.

Detailed ways

The technical solutions in the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the present invention.

Please refer to Fig. 1 and Fig. 2, the pipe-type tobacco stem light miscellaneous removal equipment of the present invention includes a winnowing box 1 fixed at the outlet of the feeding belt conveyor, and the side of the winnowing box 1 is provided with a supplementary air adjustment port 2 , the lower main air inlet is equipped with an air regulating deflector 3, and the upper part is connected with the flange of the incoming material belt discharge hopper. Wind-adjusting deflector 3 is installed in winnowing casing 1 bottom, and one end of air-adjusting deflector 3 is fixed with hinge shaft, and the other end is adjustable. The principle is to adjust the wind speed at the bottom of the winnowing box 1. When the wind deflector 3 is attached to the side wall of the winnowing box 1, the wind speed at the bottom is the same as the wind speed in the box. When the wind deflector 3 When it does not fit the wall of the winnowing box, the cross-sectional area of the bottom of the winnowing box 1 is reduced, and the wind speed is increased. Methods Carry out another flotation to further improve winnowing efficiency.

By adjusting the opening of the supplementary air regulating port 2 and the angle of the air regulating deflector 3 , the tobacco stems, light impurities and dust are separated, and the light impurities are transported to the air-impurity separation and discharge device 5 through the conveying pipeline 4 . An adjustable first baffle plate 6 and a second material baffle 7 are arranged inside the gas miscellaneous separation and blanking device 5 , and the miscellaneous air lock 9 is flange-connected below. There is an air regulating pipe 8 at the rear of the gas miscellaneous separation and blanking device 5, which can adjust the air volume of the whole system, and the dust removal air is discharged from the air regulating pipe 8, so that the whole system maintains a negative pressure state, and the dust will not overflow during the entire winnowing process, ensuring The cleaning of the site environment.

The first baffle plate 6 is an arc-shaped downward-curved arc-shaped plate, which is located at the entrance of the air miscellaneous separation and blanking device 5. The material plate 6 is changed to move downwards and falls to the miscellaneous air lock 9; the second material baffle plate 7 is set horizontally and is located on the opposite side of the first material baffle plate 6 near the air regulating pipe 8, and its function is to block the material . Due to the turbulence of the gas in the box, a small part of light debris may not fall into the air lock and be discharged, but will move upward with the dust removal wind, enter the air regulating pipe 8, and connect with the air regulating pipe 8 in the blanking box Add a horizontal second baffle plate 7 at the place, which will further block some light impurities mixed in the dust removal wind and increase the blanking efficiency.

Adjust the position of the first baffle plate 6 and the second baffle plate 7 to separate the light impurities and dust, and the light impurities are discharged from the air lock 9 to ensure the airtightness of the outlet and reduce the impact of external wind on the outlet. Due to the influence of the feeder, the dust is pumped to the dust collector with the dust removal wind. The lengths of the first material baffle plate 6 and the second material baffle plate 7 can be adjusted, and the length can be adjusted according to the blanking situation on site, and the gas flow direction can be changed, thereby adjusting the blanking efficiency. The first material baffle plate 6 and the second material baffle plate 7 can be installed according to the proportion of light impurities in the actual raw tobacco stems, so as to ensure that light impurities fall into and out of the miscellaneous air lock 9 .

When working, the raw tobacco stems that need to be removed from the belt conveyor fall into the winnowing box 1, and are flotation and floated under the action of the supplementary air adjustment port 2 and the air adjustment deflector 3. The light impurities and dust in the raw tobacco stems will be sucked into the light impurities removal pipeline 4 during the falling process, and the wind speed in the winnowing box 1 can be adjusted by adjusting the opening of the supplementary air adjustment port 2 and the angle of the air adjustment deflector 3 , and adjust the position of the first baffle plate 6 and the second baffle plate 7 to ensure that the clean tobacco stems fall into the next process, and the light miscellaneous and dust suction pipeline 4 is transported to the air miscellaneous separation and blanking box 5, and the light miscellaneous and dust The dust is separated in the air trash separation and blanking box 5, and the light trash falls from the miscellaneous air lock 9 to the designated light trash collection point, and the dust enters the centralized dust removal system from the air trash separation blanking box 5 along with the dust removal wind, so that the entire winnowing The box body 1 maintains a negative pressure state, and the dust will not overflow during the whole winnowing process to ensure the cleanness of the site environment, so that clean tobacco stems after removing light impurities can be obtained from the bottom of the winnowing box 1 .

The material enters the winnowing box 1 (ie the winnowing area), and there is an air inlet at the lower end and the side of the winnowing area. After the material enters the winnowing area, it is first drifted under the action of the side wind, that is to say, the light debris such as hemp and dust will directly enter the conveying pipe 4 under the action of the side wind, and the heavier tobacco stems will pass through. After passing through the flotation area, enter the lower part of the air selection area, and perform another flotation under the action of the bottom air intake, the material will fall from the bottom of the sorting area, and light debris such as dust and flax will float upwards and enter the conveying area. pipeline4. Generally speaking, the winnowing process of the present invention is a drifting + flotation process, and the second winnowing is realized in one winnowing area, and the winnowing efficiency is greatly improved.

The light debris picked out by wind in the conveying pipeline 4 directly falls on the spot through the settling feeder, and only part of the dust enters the dust collector through the dust removal pipeline, which has the following advantages:

1: Impact on the dust collector

The flax in the light debris is easy to attach to the filter bag of the belt filter, and it is difficult to shake it off by reverse blowing. If all the light debris enters the dust collector directly, it will easily cause the filter bag of the dust collector to be blocked, resulting in problems such as a decrease in wind speed, a decrease in winnowing efficiency, and an increase in maintenance workload. This patent drops the light sundries on the spot, and only a small amount of dust enters the dust collector, thus avoiding such problems.

2: Energy consumption

During the winnowing process, some lighter debris such as flax, paper, and labels will be winnowed out, and some broken stems will also be winnowed out due to their lighter specific gravity. If it is transported to the dust removal room for a long distance, the dust removal pipe will become a conveying pipe, and the wind speed in the pipe must reach at least 17-18m/s, otherwise it is easy to cause material deposition in the pipe, so that the air volume and pressure loss of the entire system will decrease. will increase, and energy consumption will also increase significantly. The present invention drops lighter debris on the spot, and only a small part of dust enters the dust removal room through the dust removal pipe, and the wind speed in the pipe can reach 14-15m/s, and the energy consumption of the system is reduced.

The feature of this equipment is that the winnowing box is equipped with a side air supply port to separate clean tobacco stems, light impurities and dust, light impurities and dust are transported by wind through the pipeline, and the gas separation and blanking box is equipped with two baffle plates, It is fixed at the light waste collection point to separate light waste and dust. Adjusting the position of the baffle plate can make the light waste fall into the bottom of the blanking box and exit the miscellaneous air lock, and the dust will be sucked away with the dust removal wind.

The above is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any changes or substitutions that can be easily imagined by those skilled in the art within the technical scope disclosed in the present invention, All should be covered within the protection scope of the present invention.

Claims (1)

1. a kind of duct type offal removing light impurities equipment, the selection by winnowing cabinet (1) including being fixed on feed belt machine discharge port, top with Supplied materials belt discharge bucket flange is connected, it is characterised in that: the side of selection by winnowing cabinet (1), which offers, mends wind adjusting mouth (2), lower section master Air inlet, which is equipped with, adjusts wind deflector (3), the discharge port of selection by winnowing cabinet (1) by conveyance conduit (4) with gas is miscellaneous separates blanking Device (5) connection, the miscellaneous separation feeder (5) of gas is interior to be provided with the first striker plate (6) and the second striker plate (7), and lower section is equipped with flange It connects impurity removal gas lock (9), miscellaneous separation feeder (5) rear of gas is equipped with tune air hose (8)；First striker plate (6) is that arc is downward Curved arc panel is located at miscellaneous separation feeder (5) inlet of gas, and the first striker plate (6) is for changing wind direction and material The light weight sundries of horizontal movement are changed to move downward, material are made to drop down onto impurity removal gas lock by the direction of motion by the first striker plate (6) (9) at, the second striker plate (7) be it is horizontally disposed, be located at the first striker plate (6) opposite side close to adjust air hose (8) at；Adjust wind water conservancy diversion Plate (3) is mounted on selection by winnowing cabinet (1) bottom, adjusts the one end of wind deflector (3) to be fixed with hinged shaft, other end is adjustable.