CN214516002U - Multistage tealeaves screening plant - Google Patents

Abstract

The application discloses multistage tealeaves screening plant includes: the screen is obliquely arranged in the screen box and is elastically connected with the screen box through the elastic connecting piece; a plurality of vibrators are arranged on the side wall of the screen at intervals; the top surface of the lower ash bucket is communicated with the bottom surface of the sieve box; the screen box is a closed box body, and one side of the top surface of the screen box is provided with a blanking hopper; the end face of the other side of the screen box is provided with a discharge hole and is communicated with the airflow screen subassembly; establish the extension board through covering on each sieve mesh top surface of screen cloth at the low amplitude vibration of high frequency, reduce dry tealeaves granule and sieve mesh vertical impact probability when the sieve, fracture takes place when avoiding tealeaves fracture back later stage storage transportation, can prevent through setting up the extension board that a small amount of tea dust from taking place unable entering sieve mesh after vibrating and realizing the separation, the tea dust moves along the sieve on the sieve that the slope set up and falls into the sieve mesh in, realize the screening to the tea dust when carrying the tealeaves granule.

Description

Multistage tealeaves screening plant

Technical Field

The application relates to a multistage tealeaves screening plant belongs to tea production technical field.

Background

Tea leaves planted in the Zunyi areas have a long history, and both the Huayang GuoZhi (national records of Huayang) and the tea Jing (tea Jing) of Lu Yu in Tang Dynasty are documented in Zunyi tea. After the tea leaves are dried, tea dust and tea ash contained in the tea leaves need to be separated, and then the length and the particle thickness of the tea leaves are screened, so that the size of the same basic tea leaves is improved; finally, the tea leaves are sieved according to the thickness, the rib stalks and the thick ends, and the sieving process is complicated and can not be used for effectively sieving the tea leaves with different sizes in the unified sieving machine; in order to complete the screening, the tea leaves need to repeatedly pass through various screening machines, the tea leaf crushing probability is increased, the tea leaf particle breakage probability in subsequent procedures is increased, and the tea leaf quality is influenced.

SUMMERY OF THE UTILITY MODEL

The application provides a multistage tealeaves screening plant for produce perpendicular striking, shearing force too big with the screen cloth many times in the tealeaves granule screening that exists among the solution prior art, lead to breaking in the tealeaves granule subsequent handling, the volume of splitting increases, influences the technical problem of tealeaves quality.

The application provides a multistage tealeaves screening plant, includes: the screen is obliquely arranged in the screen box and is elastically connected with the screen box through the elastic connecting piece; a plurality of vibrators are arranged on the side wall of the screen at intervals; the top surface of the lower ash bucket is communicated with the bottom surface of the sieve box; the screen box is a closed box body, and one side of the top surface of the screen box is provided with a blanking hopper; the end face of the other side of the screen box is provided with a discharge hole and is communicated with the airflow screen subassembly;

the screen includes: the sieve plate is provided with a plurality of sieve holes at intervals, and the sieve holes longitudinally penetrate through the sieve plate along the sieve plate; the first end of the extension plate is connected with the sieve plate, and the other end of the extension plate extends upwards in an inclined way and covers the sieve holes; each extension plate is arranged on the sieve plate corresponding to the sieve pores;

the elastic connection member includes: the bottom surface of the limiting rod is connected with the bottom surface of the screen box, and the limiting rod extends towards the screen mesh in a way of being vertical to the screen box; the spring connecting piece is sleeved on the limiting rod and is respectively connected with the bottom surface of the screen and the inner wall of the screen box; the screen cloth carries out high-frequency low-amplitude vibration relative to the screen box, and the tea dust slides into the screen holes along the screen plate.

Preferably, the extending end of the extending plate is a round end.

Preferably, the airflow screen assembly comprises: the air separation device comprises an air separation box, a plurality of grading hoppers and a feed inlet, wherein an air inlet is formed in a first end face of the air separation box; a feeding hole is formed in the side wall of the first end of the winnowing box; the grading hoppers are arranged on the bottom surface of the winnowing box at intervals.

Preferably, the airflow screen assembly comprises: and one end of the air inlet pipe is communicated with an air inlet of the winnowing box through a flange.

Preferably, the classifying hopper includes: a first bucket, a second bucket, a third bucket and a fourth bucket,

the first hopper is arranged on the bottom surface of the winnowing box close to the feeding hole;

the fourth hopper is arranged on the bottom surface of the winnowing box near the second end of the winnowing box;

the second hopper is arranged on the bottom surface of the winnowing box close to the first hopper;

the third hopper is close to the fourth hopper and is arranged on the bottom surface of the winnowing box.

Preferably, the airflow screen assembly comprises: the first material baffle plate is arranged on the bottom surface of the air separation box, which is communicated with the first hopper, and is close to the edge of the top surface of the first hopper; the first striker plate is arranged between the first hopper and the second hopper;

the second material baffle plate is arranged on the bottom surface of the air separation box, which is communicated with the second hopper, and is close to the edge of the top surface of the second hopper; the second material blocking plate is arranged between the second hopper and the third hopper;

the third material baffle plate is arranged on the bottom surface of the air separation box, which is communicated with the air separation box, of the third hopper and is close to the edge of the top surface of the third hopper; the third material baffle plate is arranged between the third hopper and the fourth hopper;

the fourth striker plate is arranged on the bottom surface of the air separation box, which is communicated with the air separation box, of the fourth hopper and is close to the edge of the top surface of the fourth hopper; the fourth striker plate is arranged between the fourth hopper and the side wall of the second end of the air separation box.

Preferably, the height of the first material baffle is smaller than that of the second material baffle;

the height of the second material retaining plate is smaller than that of the third material retaining plate;

and the height of the third material baffle plate is smaller than that of the fourth material baffle plate.

The beneficial effects that this application can produce include:

1) the application provides a multistage tealeaves screening plant, establish the extension board through covering on each sieve mesh top surface of screen cloth at the low amplitude vibration of high frequency, reduce dry tealeaves granule and the perpendicular striking probability of sieve mesh when the sieve, fracture when avoiding tealeaves fracture back later stage storage transportation, can prevent through setting up the extension board that a small amount of tea dust from can't getting into the sieve mesh after vibrating and realize the separation, the tea dust moves along the sieve on the sieve that the slope set up and falls into the sieve mesh in, realize the screening to the tea dust when carrying the tealeaves granule. Tea granule size differs after the primary screening, through setting up the air current sieve subassembly that the shale shaker discharge was served, blows away the back with tea granule, utilizes gravity to realize the effective separation to unidimensional tea granule, utilizes the air current to tea classification, and on the one hand classification efficiency obtains improving, need not to reuse the screen cloth simultaneously and can shorten tealeaves and screen cloth contact time, reduces tealeaves and takes place cracked probability at the screening in-process, improves the tealeaves quality.

2) The application provides a multistage tealeaves screening plant adopts the air current to sweep the tealeaves granule of unidimensional not, because tealeaves granule size is different, receives the distance that can move behind the air current transport different to the realization distinguishes the tealeaves of unidimensional, appearance not.

Drawings

Fig. 1 is a schematic front view of a multistage tea leaf screening device provided in the present application;

FIG. 2 is a schematic illustration in partial cross-sectional side view of an airflow screen assembly provided herein;

fig. 3 is a schematic top view of a screen plate provided in an embodiment of the present application;

fig. 4 is a schematic structural view of a screen hole structure on a screen plate provided by the present application;

illustration of the drawings:

10. feeding a hopper; 12. a screen box; 13. screening a screen; 131. an elastic connecting member; 132. a dust discharging hopper; 11. an airflow screen subassembly; 111. an air inlet; 112. a winnowing box; 113. grading hoppers; 114. an air inlet pipe; 115. a feed inlet; 116. a first bucket; 117. a second bucket; 118. a third bucket; 119. a fourth bucket; 121. a first striker plate; 122. a second retainer plate; 123. a third retainer plate; 124. a fourth striker plate; 13. screening a screen; 141. an extension plate; 142. a sieve plate; 143. and (4) screening holes.

Detailed Description

The present application will be described in detail with reference to examples, but the present application is not limited to these examples.

Referring to fig. 1, 2 and 3, the present application provides a multistage tea leaf screening device, including: the device comprises a lower hopper 10, a screen box 12, a screen 13, a plurality of elastic connectors 131, a lower ash hopper 132 and an airflow screen subassembly 11, wherein the screen 13 is obliquely arranged in the screen box 12 and is elastically connected with the screen box 12 through the elastic connectors 131; a plurality of vibrators are arranged on the side wall of the screen 13 at intervals; the top surface of the lower ash bucket 132 is communicated with the bottom surface of the sieve box 12; the screen box 12 is a closed box body, and one side of the top surface of the screen box 12 is provided with a blanking hopper 10; the other side end face of the screen box 12 is provided with a discharge hole and communicated with the airflow screen subassembly 11;

the screen 13 includes: the screen plate 142, a plurality of screen holes 143, a plurality of extension boards 141, offer a plurality of screen holes 143 on the screen plate 142 each other at intervals, the screen hole 143 is offered through the screen plate 142 longitudinally along the screen plate 142; the first end of the extension plate 141 is connected with the sieve plate 142, and the other end extends upwards in an inclined manner and covers the sieve hole 143; each extension plate 141 is arranged on the sieve plate 142 corresponding to the sieve hole 143;

the elastic connection member 131 includes: the bottom surface of the limiting rod is connected with the bottom surface of the screen box 12, and the limiting rod extends towards the screen 13 perpendicular to the screen box 12; the spring connecting piece is sleeved on the limiting rod and is respectively connected with the bottom surface of the screen 13 and the inner wall of the screen box 12; the screen 13 is vibrated at a high frequency with a low amplitude against the screen box 12, and the tea dust and the tea grounds slide along the screen plate 142 into the screen holes 143.

Through the sieve case 12 that adopts enclosed construction, can reduce the material loss, adopt the swash plate to sieve simultaneously, can realize the feeding to air current sieve subassembly 11 when sieving, improve material treatment efficiency.

In the device, a screen 13 is obliquely arranged at a discharge port at one end of a screen box 12.

The used sieve 142 of the device covers on the top surface of each sieve mesh 143 and sets up extension board 141, sets up sieve 142 in the slope simultaneously, can avoid the direct perpendicular contact atress with sieve mesh 143 of tealeaves granule, reduces the screening in-process, and the shearing force that tealeaves granule and sieve mesh 143 contact produced effectively keeps the complete appearance of screening granule. Meanwhile, the screen 13 is in high-frequency low-amplitude vibration, small-volume particles such as tea dust and tea dregs are difficult to jump away from the screen plate 142 due to electrostatic adsorption force existing among the particles, and can slide to the screen holes 143 along the screen plate 142 in the vibration of the screen plate 142, so that the effective separation of tea particles and tea dust is realized, and the tea particles are protected.

When the tea dust removing device is arranged, in a specific embodiment, the top surface of the lower dust hopper 132 is communicated with the middle area of the bottom surface of the screen box 12, the elastic connecting piece 131 is arranged at the peripheral area of the screen box 12 and elastically connects and supports the peripheral area of the screen mesh 13, so that the influence of tea dust on the elastic connecting piece 131 can be avoided, and the service life of the elastic connecting piece 131 can be prolonged.

When in use, after the tea leaves are fed to the screen box 12 through the feeding hopper 10, the tea leaves vibrate on the screen 13 to move forward to the discharge hole, the amplitude of the tea dust is small, and the tea dust moves to the screen hole 143 along the screen plate 142 and then falls into the lower ash hopper 132; after small-amplitude vibration is generated on the sieve holes 143, the fine particles in the tea dust fall into the sieve holes 143 again under the blockage of the extension plates 141; tea particles with other sizes continuously advance to enter the airflow screen subassembly 11 through the feed opening, and under the blowing of airflow, due to the fact that the tea particles are different in particle size and size, fall positions are different under the action of gravity after being conveyed by the airflow, and therefore the tea particles with different sizes and particle sizes are effectively screened. In the whole process, the tea particles are not directly acted by a vertical force, so that the phenomenon that the tea particles are stressed too much to generate local cracks is avoided, the damage of the tea particles in the subsequent process is increased, and the quality of the tea is influenced.

Preferably, the extending end of the extending plate 141 is a round end; adopt round end to set up extension board 141 can avoid extension board 141 to produce the shearing force when striking with it and lead to tealeaves can be broken in the follow-up workshop section to complete tealeaves granule, can effectively improve the integrality in tealeaves granule packing, the transportation stage, improve product quality.

Referring to fig. 2, preferably, airflow screen assembly 11 includes: the air separation device comprises an air separation box 112, a plurality of grading hoppers 113 and a feeding hole 115, wherein an air inlet 111 is formed in a first end face of the air separation box 112; a feeding hole 115 is formed in the side wall of the first end of the winnowing box 112; the classifying hoppers 113 are disposed on the bottom surface of the winnowing box 112 at intervals.

According to this set up wind-force and carry the tealeaves granule back of taking off, under the effect of gravity, according to tealeaves granule size difference, gravity is different, and the acceleration is different to fall into different hierarchical fill 113 in, realize once grading to tealeaves granule, improve hierarchical treatment effeciency.

Preferably, airflow screen assembly 11 includes: and an air inlet pipe 114, wherein one end of the air inlet pipe 114 is communicated with the air inlet 111 of the winnowing box 112 through a flange.

Preferably, the classifying hopper 113 includes: a first hopper 116, a second hopper 117, a third hopper 118 and a fourth hopper 119, wherein the first hopper 116 is arranged on the bottom surface of the winnowing box 112 near the feed port 115; the fourth bucket 119 is arranged on the bottom surface of the winnowing box 112 near the second end of the winnowing box 112; the second hopper 117 is arranged on the bottom surface of the winnowing box 112 close to the first hopper 116 and communicated with the winnowing box 112; the third bucket 118 is disposed on the bottom surface of the winnowing box 112 near the fourth bucket 119. According to the device, 4-level separation of the tea particle size can be realized, and the grading and screening efficiency is improved.

Preferably, airflow screen assembly 11 includes: the first striker plate 121 is arranged on the bottom surface of the air separation box 112, where the first hopper 116 is communicated with the air separation box 112, and is close to the edge of the top surface of the first hopper 116; the first striker plate 121 is disposed between the first hopper 116 and the second hopper 117;

the second material blocking plate 122 is arranged on the bottom surface of the air separation box 112, where the second hopper 117 is communicated with the air separation box 112, and is close to the edge of the top surface of the second hopper 117; the second retainer plate 122 is disposed between the second hopper 117 and the third hopper 118;

the third material baffle plate 123 is arranged on the bottom surface of the air separation box 112, where the third hopper 118 is communicated with the air separation box 112, and is close to the edge of the top surface of the third hopper 118; the third material baffle plate 123 is disposed between the third bucket 118 and the fourth bucket 119;

the fourth striker plate 124 is arranged on the bottom surface of the air separation box 112 where the fourth hopper 119 is communicated with the air separation box 112 and is close to the edge of the top surface of the fourth hopper 119; the fourth striker plate 124 is disposed between the fourth hopper 119 and the second end sidewall of the wind separation box 112.

Set up the striker plate through the whereabouts edge most of each hierarchical fill 113 and can improve the screening effect to characteristic dimension tealeaves granule, avoid a small amount of not unidimensional tealeaves granule that the atress is too big to fly into subordinate's fill in, improve the uniformity of screening back tealeaves granule size.

Preferably, the height of the first striker plate 121 is smaller than that of the second striker plate 122; the height of the second retainer plate 122 is smaller than that of the third retainer plate 123; the third striker plate 123 is smaller in height than the fourth striker plate 124. According to the arrangement, effective blanking of tea particles with specific sizes can be realized, and tea particles are prevented from being mixed.

Reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," "a preferred embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally in this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the disclosure to effect such feature, structure, or characteristic in connection with other embodiments.

Although the present application has been described herein with reference to a number of illustrative embodiments thereof, it should be understood that numerous other modifications and embodiments can be devised by those skilled in the art that will fall within the spirit and scope of the principles of this disclosure. More specifically, various variations and modifications are possible in the component parts and/or arrangements of the subject combination arrangement within the scope of the disclosure and claims of this application. In addition to variations and modifications in the component parts and/or arrangements, other uses will also be apparent to those skilled in the art.

Claims (7)

1. The utility model provides a multistage tealeaves screening plant which characterized in that includes: the device comprises a lower hopper (10), a screen box (12), a screen (13), a plurality of elastic connecting pieces (131), a lower ash hopper (132) and an airflow screen subassembly (11), wherein the screen (13) is obliquely arranged in the screen box (12) and is elastically connected with the screen box (12) through the elastic connecting pieces (131); a plurality of vibrators are arranged on the side wall of the screen (13) at intervals; the top surface of the lower ash bucket (132) is communicated with the bottom surface of the sieve box (12); the screen box (12) is a closed box body, and one side of the top surface of the screen box (12) is provided with a blanking hopper (10); the other side end face of the screen box (12) is provided with a discharge hole and communicated with the airflow screen subassembly (11);

the screen (13) comprises: the screen plate (142), a plurality of screen holes (143) and a plurality of extension plates (141), wherein the screen plate (142) is provided with a plurality of screen holes (143) at intervals, and the screen holes (143) penetrate through the screen plate (142) along the longitudinal direction of the screen plate (142); the first end of the extension plate (141) is connected with the sieve plate (142), and the other end of the extension plate extends upwards in an inclined way and covers the sieve holes (143); each extension plate (141) is arranged on the sieve plate (142) corresponding to the sieve holes (143);

the elastic connection (131) comprises: the bottom surface of the limiting rod is connected with the bottom surface of the screen box (12), and the limiting rod extends towards the screen (13) and is vertical to the screen box (12); the spring connecting piece is sleeved on the limiting rod and is respectively connected with the bottom surface of the screen (13) and the inner wall of the screen box (12); the screen (13) vibrates with high frequency and low amplitude relative to the screen box (12), and the tea dust slides into the screen holes (143) along the screen plate (142).

2. A multi-stage tea leaf screening apparatus as claimed in claim 1, wherein the extended ends of the extension plates (141) are rounded ends.

3. A multi-stage tea leaf screening apparatus according to claim 1, wherein the air flow screen subassembly (11) comprises: the air separation device comprises an air separation box (112), a plurality of grading hoppers (113) and a feed inlet (115), wherein an air inlet (111) is formed in the first end face of the air separation box (112); a feeding hole (115) is formed in the side wall of the first end of the air separation box (112); the grading hoppers (113) are arranged on the bottom surface of the winnowing box (112) at intervals.

4. A multi-stage tea leaf screening apparatus according to claim 1, wherein the air flow screen subassembly (11) comprises: and one end of the air inlet pipe (114) is communicated with the air inlet (111) of the winnowing box (112) through a flange.

5. A multi-stage tea leaf screening apparatus as claimed in claim 3 wherein the sizing hopper (113) comprises: a first bucket (116), a second bucket (117), a third bucket (118) and a fourth bucket (119),

the first hopper (116) is arranged on the bottom surface of the winnowing box (112) close to the feeding hole (115);

the fourth hopper (119) is arranged on the bottom surface of the winnowing box (112) close to the second end of the winnowing box (112);

the second hopper (117) is arranged on the bottom surface of the winnowing box (112) close to the first hopper (116);

the third bucket (118) is arranged on the bottom surface of the winnowing box (112) close to the fourth bucket (119).

6. A multi-stage tea leaf screening apparatus according to claim 5, wherein the air flow screen subassembly (11) comprises: the first material baffle (121) is arranged on the bottom surface of the winnowing box (112) where the first hopper (116) is communicated with the winnowing box (112), and is close to the edge of the top surface of the first hopper (116); the first material baffle plate (121) is arranged between the first hopper (116) and the second hopper (117);

the second material blocking plate (122) is arranged on the bottom surface of the air separation box (112) where the second hopper (117) is communicated with the air separation box (112), and is close to the edge of the top surface of the second hopper (117); the second material blocking plate (122) is arranged between the second hopper (117) and the third hopper (118);

the third material baffle plate (123) is arranged on the bottom surface of the air separation box (112) where the third hopper (118) is communicated with the air separation box (112), and is close to the edge of the top surface of the third hopper (118); the third material retaining plate (123) is arranged between the third hopper (118) and the fourth hopper (119);

the fourth striker plate (124) is arranged on the bottom surface of the air separation box (112) where the fourth hopper (119) is communicated with the air separation box (112), and is close to the edge of the top surface of the fourth hopper (119); the fourth striker plate (124) is arranged between the fourth hopper (119) and the side wall of the second end of the winnowing box (112).

7. A multi-stage tea leaf screening apparatus as claimed in claim 6 wherein the first striker plate (121) is shorter in height than the second striker plate (122);

the height of the second material blocking plate (122) is smaller than that of the third material blocking plate (123);

the height of the third material baffle plate (123) is smaller than that of the fourth material baffle plate (124).

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