CN115041409B - Double-air-duct tea winnowing machine - Google Patents

Abstract

The invention discloses a double-channel tea air separator, which includes a first-level wind box. An axial flow fan constructs a screening wind field in the vertical dropping direction inside the first-level wind box. A feed hopper is provided on the top of the first-level wind box; The first-level wind box is connected to the bottom of the first-level wind box. The centrifugal fan installed on one side of the second-level wind box builds a vertical blanking direction screening wind field inside the second-level wind box. Among them, the connection between the first-level wind box and the second-level wind box is set There is a blanking collection and conveying device. The blanking collection and conveying device is used to collect the blanking after screening by the screening wind field in the first-level wind box and transport it to the starting end of the blanking direction of the second-level wind box; the bottom of the second-level wind box Equipped with sieve material output device. The invention can carry out the first air separation of materials through the axial flow fan, and the materials entering the secondary air box undergo the second air separation under the action of the centrifugal fan air flow, thereby completing the removal of light yellow flakes, sand and gravel and other inclusions. Functional winnowing operation to improve winnowing efficiency.

Description

A kind of double air channel tea air separator

Technical field

The invention relates to the technical field of material separation, and in particular to a double-channel tea air separator.

Background technique

Since tea is a drink that can be brewed directly with boiling water, it is necessary to strictly require the safety and hygiene of tea quality. Improving the overall quality of tea production technology is the primary issue we must solve. Among them, the tea air separation machine is an important equipment in tea refining and processing. Its sorting effect will directly affect the final product quality and product value. Therefore, improving the air separation efficiency of the tea air separation machine is very important for improving tea production technology. The overall level has important practical significance.

Nowadays, with the support of the existing technical level, there are many kinds of mechanical equipment for tea winnowing on the market. However, because there are relatively few theoretical studies on tea winnowing at home and abroad, the design of tea winnowing machinery and its practical application The operation of tea winnowing in production is mainly based on traditional experience, so the overall quality of tea winnowing level is low and cannot meet the ideal requirements.

Contents of the invention

The object of the present invention is to provide a double-channel tea air separator to solve the technical problem in the prior art that it is difficult to achieve ideal separation of impurities in tea.

In order to solve the above technical problems, the present invention specifically provides the following technical solutions:

A double-channel tea air separator, including:

The first-level wind box uses an axial flow fan provided on one side of the first-level wind box to construct a screening wind field in the vertical blanking direction inside the first-level wind box. A feed hopper is provided on the top of the first-level wind box, and The feed hopper is arranged on the top of the first-level wind box away from the axial flow fan;

A secondary wind box is connected to the bottom of the primary wind box, and a centrifugal fan provided on one side of the secondary wind box builds a vertical blanking direction screening wind field inside the secondary wind box;

Wherein, a blanking collection and conveying device is provided at the connection between the first-level wind box and the second-level wind box. The blanking collection and conveying device is used to collect the blanking material that has been screened by the screening wind field in the first-level wind box. Collect and transport to the starting end of the blanking direction of the secondary wind box;

The bottom of the secondary air box is provided with a screening material output device.

As a preferred solution of the present invention, a plurality of first-level tea baffles are provided inside the first-level wind box, and a blanking channel is formed between two adjacent first-level tea baffles, and the blanking material is collected and transported The device is arranged below a plurality of first-level tea baffles;

A plurality of secondary tea baffles are provided inside the secondary air box, and a screening material channel is formed between two adjacent secondary tea baffles. The screening material output device is arranged on multiple secondary tea baffles. The tea board is below the bottom wall of the secondary bellows.

As a preferred solution of the present invention, the blanking material collection and conveying device includes a plurality of material receiving troughs connected in sequence, and the feed openings of the multiple material receiving troughs and the multiple blanking channels are one by one. correspond;

The screen material output device includes a plurality of discharge slots connected in sequence, and the discharge slots correspond to the screen material channel one-to-one.

As a preferred solution of the present invention, a conveying device is provided at the bottom of the blanking collection and conveying device. The conveying device includes a conveyor belt, a transmission rod and a driving motor. The driving motor drives the transmission rod to rotate. The conveyor belt drive collects the blanking material that has been screened by the screening wind field in the first-level wind box and transports it to the starting end of the blanking direction of the second-level wind box;

Both ends of the transmission rod are provided with transmission rollers, and the conveyor belt is connected to the transmission rod between the two transmission rollers.

As a preferred solution of the present invention, a rotating shaft is provided between both ends of the first-level tea baffle and the second-level tea baffle, and the first-level tea baffle is rotatably connected to each other through the rotating shaft. On the inner wall of the first-level bellows;

The secondary tea baffle is rotatably connected to the inner wall of the secondary air box through the rotating shaft.

As a preferred solution of the present invention, the axial flow fan constructs a screening wind field in the vertical blanking direction inside the first-level wind box, including an upwind cavity located on multiple first-level tea baffles and a plurality of upper wind chambers located on multiple first-level tea baffles. The downwind cavity between the first-level tea baffle and the blanking collection and conveying device;

An air inlet is provided at the end of the first-level air box away from the axial flow fan, and the feed hopper is installed on the top of the first-level air box close to the air inlet.

As a preferred solution of the present invention, a material transfer port is provided at the bottom of the material receiving trough, and an opening and closing door assembly for opening and closing the material transfer port is provided below the material receiving trough. The door closing assembly is used to open a plurality of the material transfer ports in sequence, and close the previous material transfer port while opening the next material transfer port.

As a preferred solution of the present invention, the opening and closing door assembly includes a corner plate that matches the material transfer port and a telescopic rod that drives the corner plate and the material transfer port to approach and move away from each other. Both ends of the angular plate are embedded in the inner wall of the first-level wind box. The inner wall of the first-level wind box is provided with a guide groove for the upper and lower movement of the angular plate. The telescopic rod is arranged in the guide groove. The output end of the telescopic rod is connected to the end of the angular plate.

As a preferred embodiment of the present invention, the longitudinal section of the angular prism plate is in the shape of an obtuse triangle, and the length of one waist is much longer than the length of the other waist;

The plane formed by the longer waist of the angular plate faces the air inlet.

As a preferred solution of the present invention, an air volume adjustment component is provided at the air inlet, and the air volume adjustment component is used to adjust the air volume distribution of the axial flow fan in the upper wind cavity and the lower wind cavity.

Compared with the prior art, the present invention has the following beneficial effects:

The invention can carry out the first air separation of materials through an axial flow fan, and the obtained air-selected tea materials are transported to the secondary air box. The materials entering the secondary air box undergo the second air separation under the action of the centrifugal fan air flow. , thereby completing the multi-functional air separation operation of removing light yellow flakes, sand and gravel and other inclusions, so as to achieve the purpose of improving the efficiency of air separation.

Description of drawings

In order to more clearly explain the embodiments of the present invention or the technical solutions in the prior art, the drawings that need to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only exemplary. For those of ordinary skill in the art, other implementation drawings can be obtained based on the extension of the provided drawings without exerting creative efforts.

Figure 1 is a schematic structural diagram of a double-channel tea air separator provided by an embodiment of the present invention;

Figure 2 is a schematic structural diagram of the longitudinal section of the primary air box and the secondary air box according to an embodiment of the present invention;

Figure 3 is a schematic structural diagram of the first-level air box and the second-level air box on the air inlet side according to the embodiment of the present invention;

Figure 4 is a schematic structural diagram of a blanking collection and conveying device provided by an embodiment of the present invention, viewed from below;

Figure 5 is a schematic structural diagram of a drop conveying device according to an embodiment of the present invention;

Figure 6 is a schematic structural diagram of a bottom view of the blanking collection and conveying device provided with the opening and closing door assembly in Figure 5 according to an embodiment of the present invention;;

FIG. 7 is a schematic structural diagram of the corner prism in FIG. 6 according to an embodiment of the present invention.

The labels in the figure are as follows:

1-First-level air box; 2-Second-level air box; 3-Axial flow fan; 4-Feeding hopper; 5-Blanking material collection and conveying device; 6-Screening material output device; 7-First-level tea baffle; 8-Two Level tea baffle; 11-receiving tank; 12-conveying device; 13-discharging slot; 14-centrifugal fan; 15-rotating shaft; 16-upwind chamber; 17-downwind chamber; 18-air inlet; 19 -Transfer port; 20-opening and closing door assembly; 21-air volume adjustment assembly; 22-air duct;

121-Conveyor belt; 122-Driving rod; 123-Driving motor; 124-Driving roller;

201-Corner plate; 202-Telescopic rod.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

As shown in Figures 1 to 7, the present invention provides a double-channel tea air separator, including:

The first-level air box 1 constructs a screening wind field in the vertical blanking direction inside the first-level air box 1 through the axial flow fan 3 provided on one side of the first-level air box 1. A feed hopper 4 is provided on the top of the first-level air box 1, and The feed hopper 4 is arranged on the top of the first-level air box 1 away from the axial flow fan 3;

The secondary air box 2 is connected to the bottom of the primary air box 1, and the centrifugal fan 14 provided on one side of the secondary air box 2 builds a vertical blanking direction screening wind field inside the secondary air box 2;

Among them, a blanking material collection and conveying device 5 is provided at the connection between the primary wind box 1 and the secondary wind box 2. The blanking material collection and conveying device 5 is used to collect the blanking material that has been screened by the screening wind field in the primary wind box 1 and Transported to the starting end of the blanking direction of the secondary air box 2;

The bottom of the secondary air box 2 is provided with a screening material output device 6 .

During the specific work of the present invention, the tea leaves to be winnowed are put into the first-level wind box 1 through the feed hopper 4, and then the tea leaves entering the wind field are blown through the wind field established inside the first-level wind box 1 by the axial flow fan 3. Select, this process is rough screening. Of course, during this process, dust will accumulate near the axial flow classification 3, and large-mass debris such as stones will accumulate at the bottom of the first-level air box 1 opposite the feed hopper 4. The roughly screened tea leaves will be distributed between the two, and this area just covers the blanking collection and conveying device 5. The tea leaves passing through the blanking collection and conveying device 5 enter the secondary air box 2. Since the secondary air box 2 uses an air curtain wind field constructed by the centrifugal fan 14, the blanking collection and conveying device 5 is required to transport the screened tea leaves. The material is blanked near the connection outlet of the centrifugal fan 14 and the secondary air box 2, and is screened again through the wind field in the secondary air box 2, so that the screened tea leaves fall into the screening output device 6.

Furthermore, in order to improve the quality and efficiency of tea selection during the air selection process, the present invention provides a plurality of first-level tea baffles 7 inside the first-level wind box 1, and between two adjacent first-level tea baffles 7 A screening channel is formed, and the falling material collection and conveying device 5 is arranged below a plurality of first-level tea baffles 7 .

A plurality of secondary tea baffles 8 are provided inside the secondary air box 2. A sieve material passage is formed between two adjacent secondary tea baffles 8. The sieve material output device 6 is arranged below the plurality of secondary tea baffles 8. on the bottom wall of the secondary air box 2.

The falling material collection and conveying device 5 includes a plurality of material receiving troughs 11 connected in sequence, and the feed openings of the plurality of material receiving troughs 11 correspond to the plurality of screening channels.

The screen material output device 6 includes a plurality of discharge slots 13 connected in sequence, and the discharge slots 13 correspond to the screen material channels one-to-one.

The bottom of the blanking collection and conveying device 5 is provided with a conveying device 12. The conveying device 12 includes a conveyor belt 121, a transmission rod 122 and a driving motor 123. The driving motor 123 drives the conveyor belt 121 to pass through the first-level wind box 1 by rotating the driving rod 122. The screened blanking materials in the screening wind field are collected and transported to the starting end of the blanking direction of the secondary air box 2.

Both ends of the transmission rod 122 are provided with transmission rollers 124, and the conveyor belt 121 is connected to the transmission rod 122 between the two transmission rollers 124.

Furthermore, since the tea leaves theoretically move in a parabolic manner during the winnowing process of tea leaves, a rotating shaft 15 is provided in the middle of both ends of the first-level tea baffle 7 and the second-level tea baffle 8. The tea baffle 7 is rotatably connected to the inner wall of the primary bellows 1 through the rotating shaft 15. The purpose is that the angles of the primary tea baffle 7 and the secondary tea baffle 8 relative to the primary bellows 1 and the secondary bellows 2 are adjustable. , so that the feed opening of the material receiving trough 11 can cooperate with the air separation movement state of the tea leaves in the upper air chamber 16, so as to obtain the ideal sorting result in the material receiving trough 11.

The secondary tea baffle 8 is rotatably connected to the inner wall of the secondary air box 2 through the rotating shaft 15 .

In the present invention, the axial flow fan 3 is further installed inside the first-level air box 1 to construct a screening wind field in the vertical blanking direction, including an upwind cavity 16 located on multiple first-level tea baffles 7 and multiple first-level tea baffles 7 . The downwind cavity 17 between the plate 7 and the falling material collection and conveying device 5.

The end of the primary wind box 1 away from the axial flow fan 3 is provided with an air inlet 18 , and the feed hopper 4 is installed on the top of the primary wind box 1 close to the air inlet 18 .

Furthermore, the double-air tea air separator provided by the present invention can perform more refined tea air separation. Specifically, a transfer port 19 is provided at the bottom of the material receiving tank 11, and the material receiving tank 11 is provided with a transfer port 19. The opening and closing door assembly 20 for opening and closing the material transfer port 19 is provided below. The opening and closing door assembly 20 is used to open multiple material transfer ports 19 in sequence, and close the previous material transfer port while opening the next material transfer port 19. 19.

That is to say, by opening and closing the door assembly 20 to sequentially open and close the material transfer port 19 of the material receiving trough 11, the tea leaves in the material receiving trough 11 fall into the secondary air box 2 in sequence, thereby realizing each material receiving The tea leaves in the tank 11 are air-selected by the independent secondary bellows 2, thereby achieving a refined air-selection operation.

The opening and closing door assembly 20 includes a corner plate 201 that matches the material transfer port 19 and a telescopic rod 202 that drives the corner plate 201 and the material transfer port 19 close to and away from the material transfer port 19. Both ends of the corner plate 201 are embedded in the primary bellows. In the inner wall of 1, the inner wall of the primary wind box 1 is provided with a guide groove for the angular rib plate 201 to move up and down. The telescopic rod 202 is arranged in the guide groove, and the output end of the telescopic rod 202 is connected to the end of the angular rib plate 201.

The longitudinal section of the angular plate 201 is an obtuse triangle, and the length of one waist is much longer than the length of the other waist; the plane formed by the longer waist of the angular plate 201 faces the air inlet 18, and its purpose is to face the downwind cavity. 17 for guidance.

Further, in the present invention, an air volume adjustment assembly 21 is provided at the air inlet 18. The air volume adjustment assembly 21 is used to adjust the air volume distribution of the axial flow fan 3 in the upper wind cavity 16 and the lower wind cavity 17. Its main purpose is to, when the corner prism 201 needs to cooperate with the transfer port 19. When sealing the transfer port 19, the air volume adjustment component 21 will reduce the air outlet near the upper air chamber 16, and the air inlet volume of the upper air chamber 16 will be reduced. In this way, the air volume of the lower air chamber 17 will pass through the transfer port. 19 enters the upper wind chamber 16, thereby producing an upward air separation and cleaning effect on the tea leaves entering the material receiving tank 11, which can prevent the tea leaves selected in the upper wind chamber 16 from falling into the material receiving due to unfinished winnowing caused by adhesion. The error of the tank body 11 also prevents tea leaves from accumulating at the transfer port 19, so that the angular prism 201 quickly seals the column transfer port 19 and prevents the tea leaves from being broken by the clamping post when closed. When the corner prism 201 completes closing the material transfer port 19, the air volume adjustment assembly 21 closes or reduces the air volume of the downwind chamber 17. The upper wind chamber 16 enters the normal air separation mode. In the initial state, the corner prism 201 is sealed with the material transfer port 19.

When efficient rough screening is required, the corner prism 201 can be opened directly in the initial screening state, that is, the material transfer port 19 is always in a state of discharging materials to the secondary air box 2. At this time, the upper air chamber 16 The wind field is used for preliminary screening of tea leaves, and the downwind chamber 17 is used for re-screening of tea leaves after preliminary screening.

To further illustrate, in the present invention, the front and rear parts of the secondary air box 2 are fixed by the first movable frame and the second movable frame, and the front end of the secondary air box 2 is provided with an air guide duct, and the air guide duct is provided at the front end. The air duct is fixed on the front end of the secondary air box 2 through the frame and is connected to the secondary air box 2. A centrifugal fan 14 is provided inside the air duct.

The drive motor 123 is a three-phase asynchronous AC motor with a specification of YD112M-6, a rated power of 2.2KW, and a terminal output speed of 960 (r/min).

The axial flow fan is a T35-11 axial flow fan, the specification is T35-1-2.8, the output speed is 2900 (r/min), the air volume is 3202m3/h, the equipped motor model is YSF-6300, and the rated power is 0.25KW.

The centrifugal fan is a 4-72 type centrifugal fan, the specification is 4-72-2.8A, the output speed is 2900 (r/min), the air volume is 1131-2356m3/h, the equipped motor model is Y90S-2, and the rated power is 1.5 KW.

The conveyor belt is made of gray PU flat conveyor belt. This material is oil-resistant, washable, and cut-resistant. The belt body is translucent and clean, mildew-free and odorless, and can be in direct contact with food.

The above embodiments are only exemplary embodiments of the present application and are not used to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art can make various modifications or equivalent substitutions to this application within the essence and protection scope of this application, and such modifications or equivalent substitutions should also be deemed to fall within the protection scope of this application.

Claims (7)

1. The utility model provides a two wind channel tealeaves air separator which characterized in that includes:

the screening device comprises a first-stage air box (1), wherein a screening wind field in a vertical blanking direction is built in the first-stage air box (1) through an axial flow fan (3) arranged on one side of the first-stage air box (1), a feed hopper (4) is arranged at the top of the first-stage air box (1), and the feed hopper (4) is arranged at the top of the first-stage air box (1) far away from the axial flow fan (3);

the secondary air box (2) is connected to the bottom of the primary air box (1), and a screening wind field in the vertical blanking direction is built in the secondary air box (2) through a centrifugal fan (14) arranged on one side of the secondary air box (2);

the blanking collecting and conveying device (5) is arranged at the joint of the primary air box (1) and the secondary air box (2), and the blanking collecting and conveying device (5) is used for collecting and conveying blanking screened by a screening air field in the primary air box (1) to the starting end of the blanking direction of the secondary air box (2);

the bottom of the secondary air box (2) is provided with a screening output device (6);

a plurality of first-stage tea blocking plates (7) are arranged in the first-stage bellows (1), blanking channels are formed between two adjacent first-stage tea blocking plates (7), and the blanking collecting and conveying device (5) is arranged below the plurality of first-stage tea blocking plates (7);

a plurality of secondary tea baffle plates (8) are arranged in the secondary air box (2), a screening channel is formed between two adjacent secondary tea baffle plates (8), and a screening output device (6) is arranged on the bottom wall of the secondary air box (2) below the plurality of secondary tea baffle plates (8);

the blanking collecting and conveying device (5) comprises a plurality of receiving trough bodies (11) which are connected in sequence, and the feed inlets of the plurality of receiving trough bodies (11) are in one-to-one correspondence with the plurality of blanking channels;

the screening output device (6) comprises a plurality of discharging slots (13) which are sequentially connected, and the discharging slots (13) are in one-to-one correspondence with the screening channels;

the bottom of the receiving trough body (11) is provided with a material transferring opening (19), and the lower part of the receiving trough body (11) is provided with an opening and closing door assembly (20) for opening and closing the material transferring opening (19), and the opening and closing door assembly (20) is used for sequentially opening a plurality of the material transferring openings (19) and closing the previous material transferring opening (19) while opening the next material transferring opening (19).

2. The double-air-duct tea winnowing machine according to claim 1, wherein a conveying device (12) is arranged at the bottom of the blanking collecting and conveying device (5), the conveying device (12) comprises a conveying belt (121), a transmission rod (122) and a driving motor (123), and the driving motor (123) drives the conveying belt (121) to drive through driving the transmission rod (122) to collect and convey blanking screened by screening wind fields in the primary wind box (1) to a starting end of the blanking direction of the secondary wind box (2);

both ends of the transmission rod (122) are provided with transmission rollers (124), and the conveying belt (121) is connected to the transmission rod (122) between the two transmission rollers (124).

3. The double-air-duct tea winnowing machine according to claim 1, wherein rotating shafts (15) are arranged between two ends of the primary tea baffle plate (7) and the secondary tea baffle plate (8), and the primary tea baffle plate (7) is rotatably connected to the inner wall of the primary air box (1) through the rotating shafts (15);

the secondary tea baffle (8) is rotatably connected to the inner wall of the secondary air box (2) through the rotating shaft (15).

4. A double-duct tea winnowing machine according to claim 1, characterized in that the axial flow fan (3) constructs a screening wind field vertical to blanking direction inside the primary air box (1) and comprises an upper wind cavity (16) positioned on a plurality of the primary tea baffle plates (7) and a lower wind cavity (17) positioned between a plurality of the primary tea baffle plates (7) and the blanking collecting and conveying device (5);

the end part of the primary air box (1) far away from the axial flow fan (3) is provided with an air inlet (18), and the feed hopper (4) is installed at the top part of the primary air box (1) close to the air inlet (18).

5. The double-air-duct tea winnowing machine according to claim 4, wherein the opening and closing door assembly (20) comprises a corner edge plate (201) matched with the material transferring opening (19) and a telescopic rod (202) for driving the corner edge plate (201) to be close to and far away from the material transferring opening (19), two ends of the corner edge plate (201) are embedded into the inner wall of the primary air box (1), a guide groove for the corner edge plate (201) to move up and down is formed in the inner wall of the primary air box (1), the telescopic rod (202) is arranged in the guide groove, and the output end of the telescopic rod (202) is connected with the end part of the corner edge plate (201).

6. A double-duct tea winnowing machine according to claim 5, characterized in that the longitudinal section of the corner plates (201) is of an obtuse triangle, and the length of one waist is much greater than the length of the other waist;

the plane of the corner edge plate (201) formed by the longer waist faces the air inlet (18).

7. The double-air-duct tea winnowing machine according to claim 4, wherein an air quantity adjusting assembly (21) is arranged at the air inlet (18), and the air quantity adjusting assembly (21) is used for adjusting air quantity distribution of the axial flow fan (3) in the upper air cavity (16) and the lower air cavity (17).