CN102000665B - Multistage winnowing machine for blending tobacco shreds - Google Patents

Abstract

The invention discloses a multi-stage winnowing machine for shredded tobacco blending, comprising a draft system connected with a wire mesh, a feeding device located upstream of the draft system, and a discharge device located downstream of the draft system, The air exhaust system is provided with multi-stage air exhaust pipes, and the nozzle of the innermost stage of the multi-stage air exhaust pipes is located in the middle of the wire mesh. The multi-stage winnowing machine for shredded tobacco blending provided by the present invention is to solve the problem of uneven air volume and pressure at the air outlet, reduce the blockage of the wire mesh at the air outlet, and improve the use efficiency of the equipment.

Description

Multi-stage Air Separator for Blending Cut Tobacco

technical field

The invention relates to the field of separation of solids from solids by the action of airflow on solid mixtures, in particular to a multi-stage wind separator for blending shredded tobacco.

Background technique

Air separators are generally used to remove sundries and unqualified products on the silk production line. After they are placed in the shredded tobacco drying process, they can be used as blending and mixing equipment for the shredded shreds. The moisture content of the blended cut tobacco is more uniform, which improves the quality of the shredded tobacco. But, as shown in Fig. 1, Fig. 2, Fig. 1 is the structural representation of the multi-stage winnowing machine that is used for shredded tobacco blending in the prior art; Fig. 2 is the multi-stage winnowing machine that is used for shredded tobacco blending in Fig. 1 Schematic diagram of the cross-sectional structure. At present, there are the following problems in the design and actual operation of the winnowing machine: 1. The air pressure and air volume distribution of the wire mesh air outlet is obviously uneven. The farther away from the air outlet, the smaller the wind pressure and air volume. 2. Because the discharge belt is directly below the air outlet, the negative pressure and air volume are the largest here, After the shredded tobacco falls, it is raised again, and a large amount of shredded tobacco hits the rotary cleaner and the wire mesh at the air outlet, and the shredded rate of the shredded tobacco can reach 5%.

Contents of the invention

In view of the above-mentioned defects, the technical problem to be solved by the present invention is to provide a multi-stage winnowing machine for shredded tobacco blending. The clogging phenomenon, improve the use efficiency of the equipment.

In order to solve the above technical problems, the multi-stage winnowing machine for shredded tobacco blending provided by the present invention includes a draft system connected to the wire mesh, a feeding device located upstream of the draft system, and a feeder located upstream of the draft system. For the downstream discharge device, the exhaust system is provided with multi-stage exhaust pipes, and the innermost one of the multi-stage exhaust pipes is located in the middle of the wire mesh.

Preferably, the multi-stage exhaust duct is a secondary exhaust duct.

Preferably, the multi-stage exhaust duct is a three-stage exhaust duct.

Preferably, a compressed air tube is arranged inside the screen, and the compressed air tube is provided with a plurality of nozzles, and the injection direction of the nozzles is vertically upward.

Preferably, a rotary cleaner is also provided on the outside of the screen.

Preferably, the multi-stage exhaust pipes of the exhaust system are respectively connected with corresponding exhaust equipment.

Preferably, the multi-stage exhaust pipes of the exhaust system are connected to the same exhaust device.

The multi-stage winnowing machine for shredded tobacco blending provided by the present invention, the innermost exhaust pipe nozzle of the multi-stage exhaust pipe is located in the middle of the wire mesh, compared with the prior art, it has the following advantages Effect:

1. It can increase the air pressure and air volume at the feed end of the air separator, so that the air pressure and air volume inside the air separator are more uniform, reducing the wire blocking phenomenon at the air outlet of the wire mesh, and improving the use efficiency of the equipment.

2. The shredded tobacco at the air outlet is easier to settle, which reduces the shreds caused by the shredded tobacco being repeatedly raised and hit by the rotary cleaner.

Description of drawings

Fig. 1 is the structural schematic diagram of the multi-stage winnowing machine that is used for tobacco shred blending in the prior art;

Fig. 2 is the schematic cross-sectional structure diagram of the multi-stage winnowing machine used for tobacco shred blending in Fig. 1;

Fig. 3 is a structural schematic diagram of the ventilation system of the multi-stage winnowing machine used for the blending of shredded tobacco in the present invention.

Detailed ways

In order for those skilled in the art to better understand the technical solutions provided by the present invention, the following will be described in conjunction with specific embodiments.

Please refer to FIG. 3 , which is a schematic structural view of the ventilation system of the multi-stage winnowing machine used for tobacco blending in the present invention.

The multi-stage winnowing machine for shredded tobacco blending provided by the present invention comprises a draft system connected to the wire mesh, a feeding device 2 located upstream of the draft system, and a discharge device 1 located downstream of the draft system, and the draft system is provided with There are first-level exhaust pipe 8, second-level exhaust pipe 9 and exhaust pipe outer pipe 4, and the second-level exhaust pipe 9 orifices are positioned at the middle part of the silk screen.

A compressed air pipe 6 is arranged inside the screen 5, and the compressed air pipe 6 is connected with a compressed air pipe 14 in the ventilation system. The compressed air pipe 6 is provided with a plurality of nozzles, and the injection direction of the nozzles is vertically upward. The outside of the screen 5 is also provided with a rotary cleaner 3, the rotary cleaner 3 is connected with the rotating mechanism 7, and the rotating mechanism 7 drives the rotary cleaner 3 to rotate.

The first-stage exhaust pipe 8 of the exhaust system is connected with the corresponding exhaust fan 13 and the motor 12 , and the second-stage exhaust pipe 9 of the exhaust system is connected with the corresponding exhaust fan 11 and the motor 10 .

The secondary exhaust pipes of the exhaust system are connected with the same exhaust fan and motor, which can also achieve the purpose of the present invention, and will not be repeated here.

Compared with the prior art, the multi-stage winnowing machine for shredded tobacco blending provided by the present invention has the following beneficial effects:

1. It can increase the air pressure and air volume at the feed end of the air separator, so that the air pressure and air volume inside the air separator are more uniform, reducing the wire blocking phenomenon at the air outlet of the wire mesh, and improving the use efficiency of the equipment.

2. The shredded tobacco at the air outlet is easier to settle, which reduces the shreds caused by the shredded tobacco being repeatedly raised and hit by the rotary cleaner.

Certainly, what is described above is only a preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, some improvements and modifications can also be made without departing from the principles of the present invention. Retouching should also be regarded as the protection scope of the present invention.

Claims (7)

1. multilevel winnowing machine that is used for tobacco shred blending, comprise the exhausting system that is connected with silk screen, the pay-off that is positioned at described exhausting system upstream, and be positioned at the drawing mechanism in described exhausting system downstream, it is characterized in that, described exhausting system is provided with multistage exhaust column, and the interior one-level exhaust column mouth of pipe of described multistage exhaust column is positioned at the middle part of described silk screen.

2. the multilevel winnowing machine for tobacco shred blending according to claim 1 is characterized in that, described multistage exhaust column is the secondary exhaust column.

3. the multilevel winnowing machine for tobacco shred blending according to claim 1 is characterized in that, described multistage exhaust column is three grades of exhaust columns.

4. the multilevel winnowing machine for tobacco shred blending according to claim 1 is characterized in that, is provided with compressed air hose in the described silk screen, and described compressed air hose is provided with a plurality of nozzles, and the injection direction of described nozzle vertically upward.

5. the multilevel winnowing machine for tobacco shred blending according to claim 1 is characterized in that, the outside of described silk screen also is provided with the spin-cleaning device.

6. the multilevel winnowing machine for tobacco shred blending according to claim 1 is characterized in that, the multistage exhaust column of described exhausting system is connected with corresponding exhaust equipment respectively.

7. the multilevel winnowing machine for tobacco shred blending according to claim 1 is characterized in that, the common and same exhaust equipment of the multistage exhaust column of described exhausting system is connected.

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