CN112844666A - Pulverizer capable of screening tea leaves - Google Patents

Abstract

The invention provides a grinder capable of screening tea leaves, and belongs to the technical field of machinery. A pulverizer capable of screening tea comprises a box body, wherein a closed cavity is arranged in the box body, an inlet is formed in the box body and is closed through a box door, a pulverizing box is fixedly arranged on the box body, a pulverizing barrel is fixedly arranged in the middle of the pulverizing box, and a chopping mechanism for chopping tea and a pulverizing mechanism for pulverizing tea into tea powder are sequentially arranged in the pulverizing barrel from top to bottom; the bottom in the box body is provided with a collecting box; and a guide plate which is gradually sunken from the periphery to the middle is fixedly arranged in the box body, a filter screen is fixedly arranged in the middle of the guide plate, and the guide plate and the filter screen divide the cavity into an upper cavity and a lower cavity. The invention has the advantages of high-efficiency tea leaf crushing and tea leaf granule screening.

Description

Pulverizer capable of screening tea leaves

The invention belongs to the application date: 2018-06-28, application number: 201810689628.5, patent name: a separate application of a pulverizer capable of screening tea.

Technical Field

The invention belongs to the technical field of machinery, and particularly relates to a pulverizer capable of screening tea.

Background

Tea is the most common beverage in people's life, with the development of social economy and the continuous improvement of people's living standard, the kind efficiency of tea is more and more, people's requirement to the diversification, health care, high-quality of tea is increasingly strong, no tea of good quality will have no place to stand in the market, tea production and preparation technology are a technology that must be mastered by the vast tea producers, it is the permanent subject of tea production research.

The traditional tea making method adopts a tea bag or a direct tea making method, but the two methods are too traditional, the benefits of the tea are not completely displayed, and most of water-insoluble nutrient substances rich in the tea are difficult to be soaked and absorbed by water.

At present, tea leaves are processed in various modes, particularly, the tea leaves are crushed into powder, the powder tea leaves can be applied to various places such as cakes, beverages and the like, and people can directly digest the tea leaves and absorb the nutrition in the tea leaves.

The traditional pulverizer is poor in tea pulverizing effect, pulverized tea particles often fail to pass screening, and larger particles are often mixed in the middle of the pulverized tea particles, so that the attractiveness and taste of food making are affected.

Disclosure of Invention

The invention aims to solve the problems in the prior art and provides a grinder capable of screening tea leaves, and the problems to be solved by the invention are as follows: how to efficiently crush tea leaves and screen tea leaf particles.

The purpose of the invention can be realized by the following technical scheme: a pulverizer capable of screening tea leaves comprises a box body, wherein a closed cavity is arranged in the box body, an inlet is formed in the box body, and the inlet is closed through a box door; the bottom in the box body is provided with a collecting box; a guide plate which is gradually sunken from the periphery to the middle is fixedly arranged in the box body, a filter screen is fixedly arranged in the middle of the guide plate, and the guide plate and the filter screen divide the cavity into an upper cavity and a lower cavity; a discharging pipe is fixedly arranged on one side of the box body and is sealed through a first valve, the discharging pipe is positioned above the guide plate, and a blowing mechanism used for blowing tea powder on the guide plate to the filter screen and blowing uncrushed tea out of the discharging pipe is arranged in the box body; the blowing mechanism comprises an air pipe, a fan, a valve II, a valve III and a plurality of air outlet pipes, the air pipe is fixedly arranged in the box body, the air pipe is annular, the fan is fixedly arranged outside the box body and is connected with the air pipe in the box body, the fan can supply air into the air pipe, the air outlet pipes are uniformly and fixedly arranged on the air pipe, the air outlets of the air outlet pipes are arranged along the guide plate, the air outlet direction is inward, and the air outlet pipes are all sealed by one-way valves; the second valve and the third valve are arranged on the air pipe and are positioned close to the fan; one side of the box body is also fixedly provided with a feeding box, and the feeding box is connected with the crushing barrel through a feeding pipe.

The working principle of the invention is as follows: place tealeaves in the feeding incasement, tealeaves enters into crushing barrel from the inlet pipe in, cuts up tealeaves through the shredder mechanism, then pulverizes tealeaves through grinding the mechanism, and on the deflector that tea powder entered into in the box after pulverizing, tea powder assembles along with the filter screen in the deflector middle to the deflector, then the tea powder that accords with the condition gets into and collects the incasement, and the tea powder that does not accord with the condition continues to stay on the filter screen. Then the blowing mechanism is started to blow out tea which does not meet the conditions from the discharging pipe. When tea leaves can not be screened out from the filter screen quickly, the blowing mechanism is started, and the filtering speed of the tea leaves can be improved. Through this grinding mechanism, can the efficient grind tealeaves and be the powder. Under the condition that the first valve is closed and the second valve and the third valve are opened, the fan is started, the fan sends air into the air pipe and blows air out through the air outlet pipe on the branch pipe, and tea powder attached to or remained on the guide plate is blown to the filter screen in the middle of the guide plate. Open at valve one, under the condition that valve two, valve three were closed, the fan sent wind into the tuber pipe and through the outlet duct air-out on the minute pipe, will remain the large granule tea powder on the filter screen and insufflate the discharging pipe. Make things convenient for the screening of tealeaves powder through this mode, improve the quality of tea powder.

In the high-efficiency tea grinder, the heating layer is arranged outside the grinding cylinder, and the heat preservation layer is arranged between the heating layer and the outer wall of the grinding cylinder; the crushing box and the heating layer are spaced. Through the zone of heating, the dryness in the crushing barrel is improved, and the tealeaves can not be stained with when smashing into powder and glue together, and the heat preservation can reduce zone of heating duration heating time, the energy saving. Smash the case and have the interval with the zone of heating, can effectively reduce the temperature on the crushing incasement wall, prevent to scald.

In the high-efficiency tea grinder, a vibrator is fixedly arranged below the guide plate. When tea powder is difficult to enter into the filter screen from the deflector or when being difficult to sieve out the certified products from the filter screen, can start the electromagnetic shaker, supplementary tea powder's screening improves the screening efficiency.

In the high-efficient tealeaves rubbing crusher of above-mentioned, the discharging pipe on the cover be equipped with the cotton bag that is used for retrieving large granule tealeaves. During the screening process, the larger particles may be recovered through a cotton bag and then processed a second time.

In the high-efficiency tea leaf crusher, the chopping mechanism comprises a motor, a rotating shaft, a fixed bottom sheet, a rotating frame and a plurality of push plates, the motor is fixedly arranged at the top of the box body, an output shaft of the motor is vertically downward, the rotating shaft is coaxially and fixedly arranged on the output shaft of the motor, the rotating shaft is positioned in the crushing barrel, the fixed bottom sheet is rotatably arranged on the rotating shaft, and the fixed bottom sheet is fixedly connected with the inner wall of the crushing barrel; the fixed bottom sheet is provided with a plurality of discharge ports, blades are arranged on one sides of the discharge ports, the blades are fixedly arranged on the fixed bottom sheet, the cutting edges of the blades are positioned above the discharge ports, and an included angle of 10-15 degrees is formed between the blades and the fixed bottom sheet; the rotating frame is fixedly arranged on the rotating shaft, the rotating frame is provided with a plurality of support arms, the push plate is fixedly arranged on the support arms, and the shortest distance between the push plate and the blade is 1-2 mm. When tea leaves enter the fixed bottom sheet, the motor drives the rotating shaft, the rotating shaft drives the rotating frame to rotate, the support arm on the rotating frame drives the push plate to rotate, the push plate starts to push the tea leaves on the fixed bottom sheet to enter the blade cutting edge, and the tea leaves are quickly cut and flow out of the discharge hole. Through this kind of cutting mode, cut into the granule with tealeaves is quick, make things convenient for subsequent processing. The cross-section of the fixed bottom sheet is V-shaped, so that the tea can be gathered at the lowest position, and the residual quantity of the tea in the fixed bottom sheet can be reduced during cutting. An included angle of 10-15 degrees is formed between the blade and the fixed bottom sheet, so that the tea leaves can be cut more finely.

In the high-efficiency tea grinder, the number of the support arms is at least four, and a plurality of through holes used for reducing wind resistance are formed in the support arms. The support arm is four at least and can improves cutting efficiency, and the through-hole can reduce the windage, is favorable to quick cutting.

In the high-efficiency tea leaf pulverizer, the grinding mechanism comprises a grinding roller and a grinding turntable, wherein the surface of the grinding roller is provided with grinding grains, the grinding roller and the grinding turntable are sequentially and coaxially fixedly arranged at the lower end of the rotating shaft from top to bottom, the cross section of the grinding roller is in a circular truncated cone shape, and the outer surface of the grinding roller and the inner wall of the grinding cylinder form a grinding channel; the lower part of the crushing cylinder is provided with a grinding surface, the upper surface of the grinding turntable and the grinding surface form a grinding channel for grinding tea leaves, and the tea leaves can move from the middle part of the grinding turntable to the edge of the grinding turntable; the lateral part of the milling turntable and the inside of the crushing box form a discharging channel, and tea can be ground in the discharging channel and fall into the box body. The tea leaves are cut up and then enter the crushing channel, the tea leaves are crushed by the crushing roller and enter the grinding channel after being crushed, and the tea leaves are quickly ground into powder and flow out of the discharging channel. The tea leaves are directly ground into fine powder after being crushed for a plurality of times. The size of the crushing channel is gradually reduced from top to bottom, the uppermost end of the crushing channel is 2.5-3mm, and the lowermost end of the crushing channel is 0.5-1 mm. In the upper shredded tea leaves, the tea leaves have different particle sizes, and in order to allow all the tea leaves to enter the shredding passage, the size of the upper shredding passage is 3 mm.

In the high-efficiency tea leaf pulverizer, a fourth valve is arranged at the joint of the fan and the air pipe, and the fan is connected with the feeding pipe through an air duct; the air duct is provided with a manual ball valve. Under the condition that valve four is closed, the fan starts, and the fan passes through the air duct and supplies air to the inlet pipe, and the quick quilt of the tealeaves in the feeding incasement is sent into crushing section of thick bamboo, and the tealeaves that remains on fixed film simultaneously also can smash once more through the effect of wind power.

Compared with the prior art, the invention has the following advantages:

1. the invention can crush tea into powder, has high crushing efficiency, and can screen out large-particle powder after crushing, thereby improving the crushing quality.

2. Be provided with blowing mechanism, can assist filtration and screening tea powder granule, and can keep inside clean.

3. Under the condition that the first valve is closed and the second valve and the third valve are opened, the fan is started, the fan sends air into the air pipe and blows air out through the air outlet pipe on the branch pipe, and tea powder attached to or remained on the guide plate is blown to the filter screen in the middle of the guide plate. Open at valve one, under the condition that valve two, valve three were closed, the fan sent wind into the tuber pipe and through the outlet duct air-out on the minute pipe, will remain the large granule tea powder on the filter screen and insufflate the discharging pipe. Make things convenient for the screening of tealeaves powder through this mode, improve the quality of tea powder.

Drawings

FIG. 1 is a schematic of the present invention.

FIG. 2 is a sectional view in the present process.

Fig. 3 is an enlarged view at a in fig. 2.

FIG. 4 is a schematic view of the shredder mechanism of the present invention.

FIG. 5 is a schematic view of the wind direction after the first valve is closed and the second and third valves are opened.

FIG. 6 is a schematic view of the wind direction after the first valve is opened and the second valve and the third valve are closed.

In the figure, 1, a box body; 2. a box door; 3. a crushing box; 4. a milling drum; 5. a collection box; 6. a guide plate; 7. a filter screen; 8. an upper chamber; 9. a lower cavity; 10. a discharge pipe; 11. a first valve; 12. a feeding box; 13. a feed pipe; 14. a heating layer; 15. a heat-insulating layer; 16. spacing; 17. a vibrator; 18. a cotton bag; 19. a motor; 20. a rotating shaft; 21. fixing the bottom plate; 22. a rotating frame; 23. pushing the plate; 24. a blade; 25. a discharge port; 26. a support arm; 27. a through hole; 28. a crushing roller; 29. a milling turntable; 30. a pulverizing channel; 31. a milling channel; 32. a discharge channel; 33. an air duct; 34. a fan; 35. a second valve; 36. a third valve; 37. an air outlet pipe; 38. a fourth valve; 39. an air duct; 40. a manual ball valve.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

As shown in fig. 1 to 6, a pulverizer capable of screening tea comprises a box body 1, wherein a closed chamber is arranged in the box body 1, an inlet is formed in the box body 1, the inlet is closed through a box door 2, a pulverizing box 3 is fixedly arranged on the box body 1, a pulverizing barrel 4 is fixedly arranged in the middle of the pulverizing box 3, and a shredding mechanism for shredding tea and a pulverizing mechanism for pulverizing tea into tea powder are sequentially arranged in the pulverizing barrel 4 from top to bottom; a collecting box 5 is arranged at the bottom in the box body 1; a guide plate 6 which is gradually sunken from the periphery to the middle is fixedly arranged in the box body 1, a filter screen 7 is fixedly arranged in the middle of the guide plate 6, and the guide plate 6 and the filter screen 7 divide a cavity into an upper cavity 8 and a lower cavity 9; a discharge pipe 10 is fixedly arranged on one side of the box body 1, the discharge pipe 10 is sealed through a first valve 11, the discharge pipe 10 is positioned above the guide plate 6, and a blowing mechanism for blowing tea powder on the guide plate 6 to the filter screen 7 and blowing uncrushed tea out of the discharge pipe 10 is arranged in the box body 1; the blower 34 comprises an air pipe 33, a fan 34, a valve II 35, a valve III 36 and a plurality of air outlet pipes 37, the air pipe 33 is fixedly arranged in the box body 1, the air pipe 33 is annular, the fan 34 is fixedly arranged outside the box body 1 and is connected with the air pipe 33 in the box body 1, the fan 34 can supply air into the air pipe 33, the air outlet pipes 37 are uniformly distributed and fixedly arranged on the air pipe 33, the air outlets of the air outlet pipes 37 are arranged along the guide plate 6, the air outlet direction faces inwards, and the air outlet pipes 37 are all sealed by one-way valves; the second valve 35 and the third valve 36 are arranged on the air pipe 33, and the second valve 35 and the third valve 36 are positioned close to the fan 34; a feeding box 12 is fixedly arranged on one side of the box body 1, and the feeding box 12 is connected with the crushing barrel 4 through a feeding pipe 13.

Specifically, a heating layer 14 is arranged outside the crushing barrel 4, and a heat preservation layer 15 is arranged between the heating layer 14 and the outer wall of the crushing barrel 4; the crushing box 3 and the heating layer 14 have a spacing 16 therebetween. Through zone of heating 14, the dryness in smashing section of thick bamboo 4 is put forward, makes tealeaves can not be stained with when smashing into powder and glues together, and heat preservation 15 can reduce zone of heating 14 duration heating time, the energy saving. Crushing case 3 has interval 16 with zone of heating 14, can effectively reduce the temperature on the outer wall of crushing case 3, prevents to scald.

Specifically, a vibrator 17 is fixedly arranged on the guide plate 6. When tea powder is difficult to enter the filter screen 7 from the guide plate 6 or is difficult to sieve out qualified products from the filter screen 7, the vibrator 17 can be started, the screening of auxiliary tea powder is realized, and the screening efficiency is improved.

Specifically, a cotton bag 18 for recovering large-particle tea is sleeved on the discharge pipe 10. During the screening process, the larger particles may be recovered through the cotton bag 18 and then subjected to a second process.

Specifically, the shredding mechanism comprises a motor 19, a rotating shaft 20, a fixed bottom sheet 21, a rotating frame 22 and a plurality of push plates 23, wherein the motor 19 is fixedly arranged at the top of the box body 1, an output shaft of the motor 19 is vertically downward, the rotating shaft 20 is coaxially and fixedly arranged on the output shaft of the motor 19, the rotating shaft 20 is positioned in the crushing barrel 4, the fixed bottom sheet 21 is rotatably arranged on the rotating shaft 20, and the fixed bottom sheet 21 is fixedly connected with the inner wall of the crushing barrel 4; a plurality of discharge ports 25 are formed in the fixed bottom sheet 21, blades 24 are arranged on one sides of the discharge ports 25, the blades 24 are fixedly arranged on the fixed bottom sheet 21, the cutting edges of the blades 24 are positioned above the discharge ports 25, and an included angle of 10-15 degrees is formed between each blade 24 and the fixed bottom sheet 21; the rotating frame 22 is fixedly arranged on the rotating shaft 20, the rotating frame 22 is provided with a plurality of support arms 26, the push plate 23 is fixedly arranged on the support arms 26, and the closest distance between the push plate 23 and the blade 24 is 1-2 mm. When tea leaves enter the fixed bottom sheet 21, the motor 19 drives the rotating shaft 20, the rotating shaft 20 drives the rotating frame 22 to rotate, the supporting arm 26 on the rotating frame 22 drives the push plate 23 to rotate, the push plate 23 starts to push the tea leaves on the fixed bottom sheet 21 to enter the blade 24, and the tea leaves are quickly cut and flow out from the discharge hole 25. Through this kind of cutting mode, cut into the granule with tealeaves is quick, make things convenient for subsequent processing. The cross section of the fixed bottom plate 21 is V-shaped, so that the tea can be gathered at the lowest part, and the residual quantity of the tea in the fixed bottom plate 21 can be reduced during cutting. The blade 24 and the fixed bottom sheet 21 form an included angle of 10-15 degrees, so that the tea leaves can be cut more finely.

Specifically, the number of the support arms 26 is at least four, and a plurality of through holes 27 for reducing wind resistance are formed in the support arms 26. The number of the support arms 26 is at least four, so that the cutting efficiency can be improved, and the wind resistance can be reduced by the through holes 27, so that the rapid cutting is facilitated.

Specifically, the grinding mechanism comprises a grinding roller 28 and a grinding turntable 29, wherein the surface of the grinding roller 28 is provided with grinding grains, the grinding roller 28 and the grinding turntable 29 are sequentially and coaxially fixed at the lower end of the rotating shaft 20 from top to bottom, the cross section of the grinding roller 28 is in a circular truncated cone shape, and a grinding channel 30 is formed between the outer surface of the grinding roller 28 and the inner wall of the grinding cylinder 4; the lower part of the crushing cylinder 4 is provided with a grinding surface, the upper surface of the grinding turntable 29 and the grinding surface form a grinding channel 31 for grinding tea leaves, and the tea leaves can move from the middle part of the grinding turntable 29 to the edge of the grinding turntable 29; the side of the milling rotor 29 and the inside of the comminution tank 3 form a discharge channel 32, in which channel 32 the tea leaves can be ground and fall into the tank 1. The tea leaves after being cut up are fed into a crushing channel 30, the tea leaves are crushed by a crushing roller 28, and after being crushed, the tea leaves are fed into a grinding channel 31, and the tea leaves are quickly ground into powder and flow out from a discharge channel 32. The tea leaves are directly ground into fine powder after being crushed for a plurality of times. The size of the pulverizing channel 30 gradually decreases from top to bottom, the uppermost end of the pulverizing channel 30 is 2.5-3mm, and the lowermost end of the pulverizing channel 30 is 0.5-1 mm. In the upper chopped tea leaves, the tea leaves are different in particle size, and the size of the upper pulverizing channel 30 is 3mm in order to allow all the tea leaves to enter the pulverizing channel 30.

Specifically, a fourth valve 38 is arranged at the joint of the fan 34 and the air pipe 33, and the fan 34 is connected with the feeding pipe 13 through an air duct 39; a manual ball valve 40 is arranged on the air duct 39. With the valve four 38 closed, the fan 34 is started, the fan 34 supplies air to the feed pipe 13 through the air duct 39, tea leaves in the feed box 12 are quickly fed into the crushing cylinder 4, and tea leaves remaining on the fixed bottom sheet 21 can be crushed again through the action of the air.

The working principle of the invention is as follows: placing tealeaves in feed box 12, tealeaves enters into crushing barrel 4 from inlet pipe 13 in, cuts up tealeaves through the shredding mechanism, then crushes tealeaves through crushing mechanism, and on the tea powder enters guide plate 6 in box 1 after crushing, the tea powder assembles to filter screen 7 in the middle of guide plate 6 along with guide plate 6, then the tea powder that accords with the condition enters into collection box 5, and the tea powder that does not accord with the condition continues to stay on filter screen 7. The blower 34 is then activated to blow out the unconditioned tea leaves from the dispensing tube 10. When the tea leaves can not be screened out from the filter screen 7 quickly, the blower 34 is started, so that the filtering speed of the tea leaves can be improved. Through this grinding mechanism, can the efficient grind tealeaves and be the powder. When the first valve 11 is closed and the second valve 35 and the third valve 36 are opened, the fan 34 is started, the fan 34 sends air into the air pipe 33 and blows out air through the air outlet pipe 37 on the branch pipe, and tea powder attached or remained on the guide plate 6 is blown to the filter screen 7 in the middle of the guide plate 6. Under the condition that the first valve 11 is opened and the second valve 35 and the third valve 36 are closed, the fan 34 sends air into the air pipe 33 and blows out air through the air outlet pipe 37 on the branch pipe, and large-particle tea powder remained on the filter screen 7 is blown into the discharge pipe 10. Make things convenient for the screening of tealeaves powder through this mode, improve the quality of tea powder.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims (3)

1. A pulverizer capable of screening tea leaves comprises a box body, wherein a closed cavity is arranged in the box body, an inlet is formed in the box body, and the inlet is closed through a box door; the bottom in the box body is provided with a collecting box; a guide plate which is gradually sunken from the periphery to the middle is fixedly arranged in the box body, a filter screen is fixedly arranged in the middle of the guide plate, and the guide plate and the filter screen divide the cavity into an upper cavity and a lower cavity; a discharging pipe is fixedly arranged on one side of the box body and is sealed through a first valve, the discharging pipe is positioned above the guide plate, and a blowing mechanism used for blowing tea powder on the guide plate to the filter screen and blowing uncrushed tea out of the discharging pipe is arranged in the box body; the blowing mechanism comprises an air pipe, a fan, a valve II, a valve III and a plurality of air outlet pipes, the air pipe is fixedly arranged in the box body, the air pipe is annular, the fan is fixedly arranged outside the box body and is connected with the air pipe in the box body, the fan can supply air into the air pipe, the air outlet pipes are uniformly and fixedly arranged on the air pipe, the air outlets of the air outlet pipes are arranged along the guide plate, the air outlet direction is inward, and the air outlet pipes are all sealed by one-way valves; the second valve and the third valve are arranged on the air pipe and are positioned close to the fan; a feeding box is fixedly arranged on one side of the box body and is connected with the crushing barrel through a feeding pipe; a fourth valve is arranged at the joint of the fan and the air pipe, and the fan is connected with the feeding pipe through an air duct; a manual ball valve is arranged on the air duct; a heating layer is arranged outside the crushing barrel, and a heat preservation layer is arranged between the heating layer and the outer wall of the crushing barrel; a distance is reserved between the crushing box and the heating layer; the shredding mechanism comprises a motor, a rotating shaft, a fixed film, a rotating frame and a plurality of push plates, the motor is fixedly arranged at the top of the box body, an output shaft of the motor is vertically downward, the rotating shaft is coaxially and fixedly arranged on the output shaft of the motor, the rotating shaft is positioned in the shredding barrel, the fixed film is rotatably arranged on the rotating shaft, and the fixed film is fixedly connected with the inner wall of the shredding barrel; the fixed bottom sheet is provided with a plurality of discharge ports, blades are arranged on one sides of the discharge ports, the blades are fixedly arranged on the fixed bottom sheet, the cutting edges of the blades are positioned above the discharge ports, a 10-15-degree included angle is formed between the blades and the fixed bottom sheet, and the cross section of the fixed bottom sheet is V-shaped; the rotating frame is fixedly arranged on the rotating shaft, the rotating frame is provided with a plurality of support arms, the push plate is fixedly arranged on the support arms, and the closest distance between the push plate and the blade is 1-2 mm; the number of the support arms is at least four, and a plurality of through holes for reducing wind resistance are formed in the support arms; the crushing mechanism comprises a crushing roller and a grinding turntable, wherein the surface of the crushing roller is provided with crushing grains, the crushing roller and the grinding turntable are sequentially and coaxially fixedly arranged at the lower end of the rotating shaft from top to bottom, the section of the crushing roller is in a circular truncated cone shape, and a crushing channel is formed between the outer surface of the crushing roller and the inner wall of the crushing barrel; the lower part of the crushing cylinder is provided with a grinding surface, the upper surface of the grinding turntable and the grinding surface form a grinding channel for grinding tea leaves, and the tea leaves can move from the middle part of the grinding turntable to the edge of the grinding turntable; a discharge channel is formed between the side part of the grinding turntable and the inside of the crushing box, and tea can be ground in the discharge channel and fall into the box body; the size of the crushing channel is gradually reduced from top to bottom, the uppermost end of the crushing channel is 2.5-3mm, and the lowermost end of the crushing channel is 0.5-1 mm; placing tea leaves in a feeding box, enabling the tea leaves to enter a crushing barrel from a feeding pipe, chopping the tea leaves through a chopping mechanism, crushing the tea leaves through a crushing mechanism, enabling the tea leaves to enter a guide plate in a box body after crushing, converging the tea leaves to a filter screen in the middle of the guide plate along with the guide plate, enabling the tea leaves meeting the conditions to enter a collecting box, enabling the tea leaves not meeting the conditions to continue to stay on the filter screen, starting a blowing mechanism to blow out the tea leaves not meeting the conditions from a discharging pipe, starting the blowing mechanism when the tea leaves cannot be screened out from the filter screen quickly, improving the filtering speed of the tea leaves, efficiently crushing the tea leaves into powder through the crushing mechanism, enabling a fan to start under the conditions that a valve I is closed, a valve II and a valve III are opened, sending air into an air pipe and blowing the air out through an air outlet pipe on a branch pipe, and blowing the tea leaves attached or remained on the guide plate to the filter screen in the middle of the, open at valve one, under the condition that valve two, valve three were closed, the fan sent the tuber pipe with wind and through the outlet duct air-out on the branch pipe, will remain the large granule tea powder on the filter screen and insufflate the discharging pipe, makes things convenient for the screening of tealeaves powder through this mode, improves the quality of tea powder.

2. A crusher capable of sifting tea leaves as claimed in claim 1, wherein a vibrator is fixed under said guide plate.

3. A crusher capable of screening tea leaves as claimed in claim 1, wherein the discharge pipe is sleeved with a cotton bag for recovering large-sized tea leaves.

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