阅读说明：本技术 一种筛药除尘机 (Sieve medicine dust shaker ) 是由 陈晋通 于 2021-01-28 设计创作，主要内容包括：本申请涉及草药除尘技术领域,尤其是涉及一种筛药除尘机,其技术方案要点是：包括除尘筛筒和套设在除尘筛筒外部的除尘箱；除尘筛筒上设置有与除尘筛筒内部连通的第一除尘管,第一除尘管连接有旋风分离器；旋风分离器的出气端连接有第二除尘管；第二除尘管的出气端设置有密封的净化箱,第二除尘管贯穿净化箱的侧壁并向净化箱内部延伸；第二除尘管上设置有与第二除尘管内部连通的净化袋,净化袋能够通过空气且阻碍灰尘通过；净化箱外部设置有与净化箱内部连通的负压风机；达到了实现对旋风分离器输出的空气进行进一步净化除尘,以进一步减少空气中的灰尘杂质并降低对工人身体健康的危害的目的。(The application relates to herbal medicine dust removal technical field especially relates to a sieve medicine dust shaker, and its technical scheme main points are: comprises a dust removal screen cylinder and a dust removal box sleeved outside the dust removal screen cylinder; the dust removal screen drum is provided with a first dust removal pipe communicated with the interior of the dust removal screen drum, and the first dust removal pipe is connected with a cyclone separator; the air outlet end of the cyclone separator is connected with a second dust removal pipe; the air outlet end of the second dust removal pipe is provided with a sealed purification box, and the second dust removal pipe penetrates through the side wall of the purification box and extends towards the interior of the purification box; the second dust removal pipe is provided with a purification bag communicated with the inside of the second dust removal pipe, and the purification bag can pass through air and prevent dust from passing through; a negative pressure fan communicated with the interior of the purification box is arranged outside the purification box; the purpose of further purifying and dedusting the air output by the cyclone separator to further reduce dust impurities in the air and reduce harm to the health of workers is achieved.)

1. A drug screening and dust removing machine comprises a dust removing screen cylinder (22) and a dust removing box (21) sleeved outside the dust removing screen cylinder (22); a first dust removal pipe (31) communicated with the interior of the dust removal screen cylinder (22) is arranged on the dust removal screen cylinder (22), and the first dust removal pipe (31) is connected with a cyclone separator (35); the method is characterized in that: the air outlet end of the cyclone separator (35) is connected with a second dust removal pipe (32); a sealed purification box (33) is arranged at the air outlet end of the second dust removal pipe (32), and the second dust removal pipe (32) penetrates through the side wall of the purification box (33) and extends towards the interior of the purification box (33); the second dust removal pipe (32) is provided with a purification bag (34) communicated with the interior of the second dust removal pipe (32), and the purification bag (34) can pass through air and prevent dust from passing through; a negative pressure fan (36) communicated with the interior of the purification box (33) is arranged outside the purification box (33).

2. The drug screening and dust removing machine according to claim 1, characterized in that: the second dust removal pipe (32) is horizontal and is arranged close to the lower part of the purification box (33), and the air inlet end of the negative pressure fan (36) is arranged close to the upper part of the purification box (33); the purification bag (34) is provided with a plurality of openings, the openings of the purification bag (34) are vertically downward and are communicated with the interior of the second dust removal pipe (32).

3. The drug screening and dust removing machine according to claim 2, characterized in that: a plurality of mounting cylinders (341) are arranged at the opening of the purification bag (34); a plurality of installation auxiliary pipes (321) with vertical axes are arranged on the pipe wall of the second dust removing pipe (32), and the installation auxiliary pipes (321) are communicated with the inside of the second dust removing pipe (32); the mounting cylinder (341) is in threaded connection with the mounting auxiliary pipe (321).

4. The drug screening and dust removing machine according to claim 1, characterized in that: a supporting mesh enclosure (342) is sleeved in the purification bag (34); the meshes of the supporting mesh enclosure (342) are larger than the meshes of the purification bag (34).

5. The drug screening and dust removing machine according to claim 4, wherein: the cleaning box (33) is internally provided with an impact plate (381) which can impact the cleaning bag (34) and an impact driving component (382) which can drive the impact plate (381) to move towards or away from the cleaning bag (34).

6. The drug screening and dust removing machine according to claim 5, wherein: the impact driving assembly (382) comprises an impact rod (3821) arranged on one side of the impact plate (381) far away from the purifying bag (34); one end of the striking rod (3821) far away from the striking plate (381) is provided with a cam (3822) positioned outside in a purifying mode and a first driving piece capable of driving the cam (3822) to rotate in a fixed shaft mode; one end of the striking rod (3821) close to the cam (3822) is fixedly provided with a butting plate (3824); the impact rod (3821) penetrates through the wall of the purification box (33) and is connected with the purification box (33) in a sliding manner; a return spring (3825) sleeved on the impact rod (3821) is arranged between the outer wall of the purification box (33) and the abutting plate (3824), and the return spring (3825) is in a compressed state all the time; the cam (3822) can drive the striker (3821) to move toward or away from the purge pocket (34).

7. The drug screening and dust removing machine according to claim 6, wherein: the lower end of the supporting net cover (342) is coaxially fixed with a buffer spring (343), and the lower end of the buffer spring (343) is fixedly connected with the mounting cylinder (341).

8. The drug screening and dust removing machine according to claim 7, characterized in that: the dust blocking plate (37) is coaxially arranged in the mounting cylinder (341), a plurality of vent holes (371) are formed in the dust blocking plate (37), and air and dust can pass through the vent holes (371); a plurality of horizontal dust blocking sheets (372) are arranged on the upper surface of the dust blocking plate (37), the dust blocking sheets (372) are respectively arranged above the corresponding vent holes (371), gaps exist between the dust blocking sheets (372) and the vent holes (371), and the area of the dust blocking sheets (372) is larger than that of the vent holes (371); one end of the dust blocking sheet (372) is provided with a connecting part (373) which is vertically fixed on the dust blocking plate (37).

9. The drug screening and dust removing machine according to claim 7, characterized in that: a material guiding screen cylinder (11) is arranged outside one end of the dust removing screen cylinder (22), and the diameter of the meshes of the material guiding screen cylinder (11) is smaller than the size of the medicine; the material guiding screen cylinder (11) is communicated with the interior of the dust removing screen cylinder (22); a material guide sleeve (12) is sleeved outside the material guide screen cylinder (11), a screw shaft (13) is coaxially arranged inside the material guide screen cylinder (11), and a second driving piece capable of driving the screw shaft (13) to rotate around the axis of the second driving piece in a fixed-axis manner is arranged at one end, far away from the dust removal screen cylinder (22), of the material guide screen cylinder (11); a third dust removal pipe (15) is arranged on the material guide sleeve (12), and two ends of the third dust removal pipe (15) are respectively communicated with the material guide sleeve (12) and the interior of the first dust removal pipe (31); one end of the guide screen cylinder (11) far away from the dedusting screen cylinder (22) is provided with a charging hopper (16) for feeding the medicine into the guide screen cylinder (11).

10. The drug screening and dust removing machine according to claim 7, characterized in that: one end of the dust removing screen cylinder (22) far away from the material guiding screen cylinder (11) is provided with a dust suction hopper (51), and the dust suction hopper (51) is opened downwards and is arranged above the dust removing screen cylinder (22); the upper end of the dust collection hopper (51) is connected with a fourth dust removal pipe (52), and one end, far away from the dust collection hopper (51), of the fourth dust removal pipe (52) is communicated with the first dust removal pipe (31).

Technical Field

The application relates to the technical field of herbal medicine dust removal, especially relates to a sieve medicine dust shaker.

Background

The Chinese herbal medicine still has a large amount of dust impurities after being dried in the sun, so that the Chinese herbal medicine needs to be dedusted and filtered.

The utility model discloses a drum medicine sieving machine with the authorization notice number of CN205816160U, which comprises a frame and a drum with openings at two ends; the cylinder body of the roller is surrounded by the screen and can rotate in the frame in a fixed shaft way; the interior of the roller is communicated with a dust channel, and the dust channel is connected with a cyclone separator; a fan is connected between the dust channel and the cyclone separator; the dust that raises inside the cylinder passes through dust passageway entering cyclone under the effect of fan, and under cyclone's effect, most dust separates out from the air, and comparatively clean air goes out from cyclone upper end opening.

In view of the above-mentioned related art solutions, the inventors found that: the air is purified once, namely, a small amount of dust still exists in the air after the dust is removed by the cyclone separator, and the dust enters the atmosphere along with the air, so that the atmosphere is polluted and the health of workers is harmed.

Disclosure of Invention

Further purify the dust removal in order to realize the air to cyclone output to further reduce the dust impurity in the air and reduce the harm healthy to the workman, this application provides a sieve medicine dust shaker.

The application provides a sieve medicine dust shaker adopts following technical scheme:

a drug screening and dust removing machine comprises a dust removing screen cylinder and a dust removing box sleeved outside the dust removing screen cylinder; the dust removal screen drum is provided with a first dust removal pipe communicated with the interior of the dust removal screen drum, and the first dust removal pipe is connected with a cyclone separator; the air outlet end of the cyclone separator is connected with a second dust removal pipe; the air outlet end of the second dust removal pipe is provided with a sealed purification box, and the second dust removal pipe penetrates through the side wall of the purification box and extends towards the interior of the purification box; the second dust removal pipe is provided with a purification bag communicated with the inside of the second dust removal pipe, and the purification bag can pass through air and prevent dust from passing through; the outside of the purifying box is provided with a negative pressure fan communicated with the inside of the purifying box.

By adopting the technical scheme, the negative pressure fan sequentially passes through the purification box, the purification bag, the second dust removal pipe, the cyclone separator and the first dust removal pipe to generate negative pressure inside the dust removal box and the dust removal screen cylinder, the dust impurities doped in the medicine are lifted in the process that the medicine rolls inside the dust removal screen cylinder along with the rotation of the dust removal screen cylinder, the dust impurities enter the cyclone separator through the first dust removal pipe for preliminary dust removal due to the negative pressure inside the dust removal screen cylinder, a small amount of dust impurities still exist in the air at the moment, the air enters the purification bag through the second dust removal pipe, the air can pass through the purification bag, the dust impurities cannot pass through the purification bag, further dust removal and purification of the air are further realized, the air discharged by the negative pressure fan is purer, and the dust in the air is reduced; therefore, the air output by the cyclone separator is further purified and dedusted, so that dust and impurities in the air are further reduced, and harm to the health of workers is reduced.

Preferably, the second dust removal pipe is arranged horizontally and close to the lower part of the purification box, and the air inlet end of the negative pressure fan is arranged close to the upper part of the purification box; the purification bag is provided with a plurality of openings which are vertically downward and communicated with the interior of the second dust removal pipe.

Through adopting above-mentioned technical scheme, negative pressure is firstly made to negative pressure fan in the top of purifying box, and the purification bag is bloated under the negative pressure effect of being made by negative pressure fan, because the purification bag is provided with a plurality ofly and the opening of purification bag is vertical downwards, and then makes the purification bag be in vertical state under the circumstances of bloating, and then has reduced the purification bag and has taken place to buckle along with high-pressure draught when using and cause the possibility that the purification bag blockked up.

Preferably, a plurality of mounting cylinders are arranged at the opening of the purification bag; a plurality of installation auxiliary pipes with vertical axes are arranged on the pipe wall of the second dust removing pipe, and the installation auxiliary pipes are communicated with the inside of the second dust removing pipe; the mounting cylinder is in threaded connection with the mounting auxiliary pipe.

Through adopting above-mentioned technical scheme, after using the completion, will install a section of thick bamboo from the installation auxiliary pipe lift off can, made things convenient for like this to the change and the clearance of purifying bag.

Preferably, the inside of the purification bag is sleeved with a supporting mesh enclosure; the meshes of the supporting net cover are larger than those of the purification bag.

Through adopting above-mentioned technical scheme, support the screen panel and can make the purification bag maintain the state of inside swell, can make the purification bag still can maintain inside hollow state under the not enough condition of wind-force promptly, and then make the purification bag can play the effect that hinders the dust and pass through constantly, reduced the purification bag and subsided and topple over and cause the unable possibility that passes through of air.

Preferably, the inside of the purifying box is provided with an impact plate capable of impacting the purifying bag and an impact driving assembly capable of driving the impact plate to move towards or away from the purifying bag.

By adopting the technical scheme, in the process that air with dust passes through the purification bag, the dust can be attached to the purification bag and cannot fall down, at the moment, meshes on the purification bag can be blocked, and the air cannot be discharged from the second dust removal pipe through the purification bag; the driving piece can drive the impact plate to move in the direction of approaching the purification bag, the impact plate impacts the expanded purification bag, and dust attached to the purification bag is further knocked down, so that the possibility that air cannot be discharged from the second dust removal pipe through the purification bag due to the fact that a large amount of dust is attached to the purification bag is reduced.

Preferably, the impact driving assembly comprises an impact rod arranged on one side of the impact plate far away from the purification bag; one end of the impact rod, which is far away from the impact plate, is provided with a cam positioned outside the cleaning part and a first driving piece capable of driving the cam fixed shaft to rotate; one end of the striking rod close to the cam is fixedly provided with a butting plate; the impact rod penetrates through the wall of the purification box and is connected with the purification box in a sliding manner; a return spring sleeved on the impact rod is arranged between the outer wall of the purifying box and the abutting plate, and the return spring is constantly in a compressed state; the cam can drive the striking rod to move towards or away from the purification bag.

By adopting the technical scheme, under the action of the return spring, the end of the impact rod, namely the abutting plate, can be abutted against the peripheral surface of the cam at any time; at cam pivoted in-process, the striking rod is promoted or is pulled by the butt plate by the cam, and the striking rod removes to the direction of being close to or keeping away from the purification bag promptly, and the striking rod and then drives the striking plate and remove to the direction of being close to or keeping away from the purification bag, and the striking plate and then can periodic striking purification bag.

Preferably, the lower end of the supporting mesh enclosure is coaxially fixed with a buffer spring, and the lower end of the buffer spring is fixedly connected with the mounting cylinder.

Through adopting above-mentioned technical scheme, striking plate is at the in-process of striking the purification bag that swells, all has mutual impact between support screen panel and the installation section of thick bamboo and between installation section of thick bamboo and the installation auxiliary pipe, and buffer spring can make support screen panel at the in-process that is rocked by the striking, makes the rigid impact who supports between screen panel and the installation section of thick bamboo become flexible impact, and then reduces the support screen panel and by the in-process that strikes and take place cracked possibility from the installation section of thick bamboo.

Preferably, the dust baffle is coaxially arranged in the mounting cylinder, a plurality of vent holes are formed in the dust baffle, and air and dust can pass through the vent holes together; the upper surface of the dust baffle is provided with a plurality of horizontal dust baffles, the plurality of dust baffles are respectively arranged above the corresponding vent holes, a gap is formed between each dust baffle and each vent hole, and the area of each dust baffle is larger than that of each vent hole; one end of the dust blocking sheet is provided with a connecting part which is vertically fixed on the dust blocking plate.

By adopting the technical scheme, air with a small amount of dust can reach the upper part of the dust baffle plate through the vent holes in the dust baffle plate and enter the purification bag; when the impact plate impacts the purification bag, dust particles attached to the purification bag impact off the purification bag, and the dust blocking sheet can prevent dust from entering the second dust removal pipe through the vent hole; after negative-pressure air fan closed, the in-process of unloading the purification bag also has the dust and is shaken off, and the dust is difficult to shake out from the purification bag through the dust blocking sheet at the in-process that the purification bag was taken off, has then reduced in-process dust escape to the air and has caused air pollution at the purification bag change dismantlement.

Preferably, a material guiding screen cylinder is arranged outside one end of the dust removing screen cylinder, and the diameter of the meshes of the material guiding screen cylinder is smaller than the size of the medicine; the material guiding screen cylinder is communicated with the interior of the dust removing screen cylinder; a material guide sleeve is sleeved outside the material guide screen cylinder, a screw shaft is coaxially arranged inside the material guide screen cylinder, and a second driving piece capable of driving the screw shaft to rotate around the axis of the second driving piece in a fixed-axis mode is arranged at one end, far away from the dust removal screen cylinder, of the material guide screen cylinder; a third dust removal pipe is arranged on the material guide sleeve, and two ends of the third dust removal pipe are respectively communicated with the material guide sleeve and the first dust removal pipe; one end of the guide screen cylinder, which is far away from the dedusting screen cylinder, is provided with a charging hopper for feeding the medicine material into the guide screen cylinder.

By adopting the technical scheme, the medicine materials are added into the material guide screen cylinder through the charging hopper, and the medicine materials are transmitted to the interior of the dust removal screen cylinder along with the rotation of the spiral shaft; in the process, the medicine material rolls in the material guiding screen cylinder, and part of dust and impurities in the medicine material enter between the material guiding sleeve and the material guiding screen cylinder through the material guiding screen cylinder; the negative pressure fan is used for generating negative pressure inside the material guide sleeve through the third dust removal pipe, and dust entering between the material guide sleeve and the material guide screen drum is pumped into the third dust removal pipe and then enters the first dust removal pipe and the cyclone separator to participate in subsequent dust removal; can tentatively remove dust tentatively to the explosive material that enters into dust removal sieve section of thick bamboo inside like this, improve explosive material dust collection efficiency and effect to a certain extent to take the dust out through the third dust removal pipe, and then reduced the dust and entered into in the air and cause air pollution.

Preferably, one end of the dust removal screen cylinder, which is far away from the material guide screen cylinder, is provided with a dust suction hopper, and the opening of the dust suction hopper is downward and is arranged above the dust removal screen cylinder; the upper end of the dust collection hopper is connected with a fourth dust removal pipe, and one end, far away from the dust collection hopper, of the fourth dust removal pipe is communicated with the first dust removal pipe.

By adopting the technical scheme, in the process of rolling the medicine materials in the dedusting screen cylinder, the lifted dust part escapes to the external environment of the dedusting screen cylinder from the interior of the dedusting screen cylinder; the negative pressure fan is used for generating negative pressure for one end of the dust removal screen cylinder through the fourth dust removal pipe, and dust escaping from the inside of the dust removal screen cylinder to the outside of the dust removal screen cylinder is sucked into the cyclone separator through the first dust removal pipe, so that the air pollution caused by further diffusion of the escaping dust in the environment can be reduced.

In summary, the present application has the following technical effects:

1. by arranging the purification box, the second dust removal pipe and the purification bag, the air output by the cyclone separator is further purified and dedusted, so that dust and impurities in the air are further reduced, and harm to the health of workers is reduced;

2. through the arrangement of the impact plate and the impact driving assembly, the impact plate impacts the expanded purification bag, and dust attached to the purification bag is further impacted, so that the possibility that air cannot be discharged from the second dust removal pipe through the purification bag due to the fact that a large amount of dust is attached to the purification bag is reduced;

3. through having set up guide sieve section of thick bamboo, guide sleeve, screw axis and third dust removal pipe, at the in-process that the medicine material conveys to a dust removal sieve section of thick bamboo, can tentatively remove dust to the medicine material that enters into a dust removal sieve section of thick bamboo inside tentatively, improved medicine material dust collection efficiency and effect to a certain extent to take the dust out through third dust removal pipe, and then reduced the dust and entered into the air and caused air pollution.

Drawings

Fig. 1 is an overall structural view of a chemical sieving dust remover in an embodiment of the present application;

FIG. 2 is an overall view of the sieving and dust-removing machine in another view in the embodiment of the present application;

FIG. 3 is an enlarged view of a portion of FIG. 2 at A;

FIG. 4 is an enlarged view of a portion of FIG. 2 at B;

FIG. 5 is an overall view of the chemical sieving dust remover in the embodiment of the present application on the side of the feed prescreening mechanism;

FIG. 6 is an enlarged view of a portion of FIG. 5 at C;

fig. 7 is a partial enlarged view at D in fig. 5.

In the figure, 1, a feeding prescreening mechanism; 11. a material guiding screen cylinder; 12. a material guiding sleeve; 13. a screw shaft; 14. a second motor; 15. a third dust removal pipe; 16. a hopper; 2. a dust removal mechanism; 21. a dust removal box; 211. a discharging box; 22. a dust removal screen drum; 23. a dust removal drive assembly; 231. a chain; 232. a sprocket; 233. a third motor; 24. a gas collecting hopper; 3. a purification mechanism; 31. a first dust removal pipe; 32. a second dust removal pipe; 321. installing an auxiliary pipe; 33. a purification box; 34. a purification bag; 341. mounting the cylinder; 342. a supporting mesh enclosure; 343. a buffer spring; 35. a cyclone separator; 36. a negative pressure fan; 361. an air inlet pipe; 362. an exhaust pipe; 37. a dust blocking plate; 371. a vent hole; 372. a dust blocking sheet; 373. a connecting portion; 4. a dust striking mechanism; 381. an impact plate; 382. an impact drive assembly; 3821. a striker bar; 3822. a cam; 3823. a first motor; 3824. a butt joint plate; 3825. a return spring; 5. an outlet dust collection assembly; 51. a dust suction hopper; 52. and a fourth dust removal pipe.

Detailed Description

The present application is described in further detail below with reference to the attached drawings.

Referring to fig. 1, the application provides a drug sieving and dust removing machine, which comprises a feeding primary sieving mechanism 1, a dust removing mechanism 2 and a purifying mechanism 3; add the dust removal mechanism 2 with the medicine material through pay-off prescreening mechanism 1 in, dust removal mechanism 2 carries out screening and the dust removal of impurity to the medicine material, dust and impurity that screen out among the dust removal mechanism 2 are along with the air by the suction purification mechanism 3 in, purification mechanism 3 can carry out twice purification dust removal to the air that is doped with dust impurity, and then reduce dust and impurity among the 2 exhaust air of dust removal mechanism, the pollution of medicine material dust removal in-process to the air is in order to reduce the harm healthy to the workman.

Referring to fig. 2 and 3, the dust removing mechanism 2 includes a dust removing screen cylinder 22 with a horizontal axis and two open ends and a dust removing box 21 arranged horizontally; the dust removal screen cylinder 22 is arranged inside the dust removal box 21 and close to the top of the dust removal box 21; the peripheral surface of the dust removal screen cylinder 22 is provided with a plurality of meshes, and the diameter of the meshes of the dust removal screen cylinder 22 is smaller than the size of the medicine and larger than the size of dust impurities, namely the meshes of the dust removal screen cylinder 22 can enable the dust impurities in the medicine to pass through; a dust removal driving component 23 for driving the dust removal screen drum 22 to rotate around the axis of the dust removal screen drum is arranged in the dust removal box 21; referring to fig. 1 again, the bottom of the dust removing box 21 is provided with a discharge box 211 with an upward opening, the dust removing screen cylinder 22 is arranged above the discharge box 211, and the discharge box 211 horizontally penetrates through one side wall of the dust removing box 21 and is connected with the dust removing box 21 in a sliding manner; the dust removal box 21 is communicated with the purification mechanism 3; adding the medicine materials into the dedusting screen cylinder 22, driving the dedusting screen cylinder 22 to rotate around the axis of the dedusting screen cylinder 22 by the dedusting driving component 23, rolling the medicine materials in the dedusting screen cylinder 22 along with the rotation of the dedusting screen cylinder 22, pumping out a part of dust impurities in the medicine materials along with the air by the purifying mechanism 3 in the process of rolling the medicine materials, and discharging the air doped with the dust impurities to the atmosphere after the purifying mechanism 3 purifies and dedusts the air; and a part of dust impurities fall into the discharging box 211, and after the dust removal is finished, the discharging box 211 is drawn out from the dust removing box 21, and the dust impurities accumulated in the discharging box 211 are cleaned.

Referring to fig. 2 and 3, the dust-removing driving assembly 23 includes a chain 231 disposed on the dust-removing screen cylinder 22, the chain 231 is coaxially wound on the outer circumferential surface of the dust-removing screen cylinder 22 and is fixedly connected with the outer circumferential surface of the dust-removing screen cylinder 22; one side of the dedusting screen cylinder 22 is provided with a chain wheel 232 matched with the chain 231 and a third motor 233 used for driving the chain wheel 232 to rotate around the axis of the third motor 233 in a fixed-shaft manner, and the output shaft of the third motor 233 is coaxially and fixedly connected with the chain wheel 232; the third motor 233 is fixed on the dust removing box 21; when the medicine placed in the dedusting screen cylinder 22 needs to be subjected to roller screening dedusting, the third motor 233 is started, the third motor 233 drives the chain wheel 232 to rotate around the axis of the third motor, the chain 231 is coaxially wound on the outer peripheral surface of the dedusting screen cylinder 22, the chain wheel 232 further drives the chain 231 to rotate around the axis of the dedusting screen cylinder 22, and the chain wheel 232 further drives the dedusting screen cylinder 22 to rotate around the axis of the third motor.

Referring to fig. 1, the purification mechanism 3 includes a gas collecting hopper 24 fixed on the top of the purification box 33 and communicated with the interior of the purification box 33, the longitudinal section of the gas collecting hopper 24 is in a bell mouth shape, and the large opening end of the gas collecting hopper 24 faces downward; the upper end of the air collecting hopper 24 is connected with a first dust removing pipe 31 communicated with the interior of the purifying box 33, and the first dust removing pipe 31 extends to one side of the purifying box 33; one end of the first dust removal pipe 31, which is far away from the air collection hopper 24, is connected with a cyclone separator 35 arranged on one side of the purification box 33, and the first dust removal pipe 31 is connected with the air inlet end of the cyclone separator 35; the air outlet end of the cyclone separator 35 is connected with a second dust removing pipe 32, and the second dust removing pipe 32 is indirectly communicated with a negative pressure fan 36; the negative pressure fan 36 produces negative pressure inside the dust removing box 21 through the second dust removing pipe 32, the cyclone separator 35, the first dust removing pipe 31 and the air collecting hopper 24, dust and impurities raised inside the dust removing box 21 are sucked into the cyclone separator 35 along with air by the negative pressure fan 36, and the cyclone separator 35 performs primary dust removing and purifying on the air doped with the dust and impurities to reduce the dust and impurities in the air discharged from the dust removing box 21, so that pollution to the air and harm to the health of workers are reduced.

Referring to fig. 2 and 4, a closed purification box 33 fixed on the ground is arranged on one side of the cyclone separator 35 away from the dust box 21, and one end of the second dust removal pipe 32 away from the cyclone separator 35 extends towards the inside of the purification box 33 and is communicated with the inside of the purification box 33; the second dust removal pipe 32 is provided with a plurality of purification bags 34, the openings of the purification bags 34 are communicated with the inside of the second dust removal pipe 32, and the purification bags 34 can enable air to pass through and prevent dust and impurities in the air from passing through; the negative pressure fan 36 is arranged on one side of the purifying box 33 far away from the cyclone separator 35, the air inlet end of the negative pressure fan 36 is connected with an air inlet pipe 361, and the air inlet pipe 361 is communicated with the inside of the purifying box 33; the air outlet end of the negative pressure fan 36 is connected with an air outlet pipe which is communicated with the outdoor atmosphere; the air discharged from the cyclone separator 35 is still doped with a small amount of dust impurities, the air doped with a small amount of dust impurities enters the purification bag 34 through the second dust removal pipe 32, the purification bag 34 is blown up under the action of the negative pressure fan 36, the air is sucked into the air inlet pipe 361 through the purification bag 34 and is discharged to the atmosphere through the exhaust pipe 362, the dust impurities in the air cannot pass through the purification bag 34, namely the dust impurities cannot be sucked into the air inlet pipe 361 together with the air, further separation of the dust impurities from the air is realized, and secondary dust removal and purification of the air is realized, so that the dust impurities in the air are further reduced, and harm to the health of workers is reduced.

The second dust removing pipe 32 extends to the bottom of the purifying box 33 and is horizontally arranged; the air inlet pipe 361 extends towards the bottom of the purification box 33 and is communicated with the purification box 33 at a position close to the top; the end of the second dust removing pipe 32 far away from the cyclone separator 35 is closed, three purification bags 34 are arranged and are uniformly arranged on the circumferential surface of the second dust removing pipe 32 along the horizontal direction, and the openings of the purification bags 34 are arranged downwards and extend to the top of the purification box 33; the negative pressure fan 36 firstly generates negative pressure above the purification box 33, the purification bag 34 is swelled under the action of the negative pressure generated by the negative pressure fan 36, and the purification bag 34 is provided with three openings, the openings of the purification bag 34 are downward, so that the purification bag 34 is in a vertical state under the swelling condition, and the possibility that the purification bag 34 is blocked due to the bending of high-pressure air flow when the purification bag 34 is used is reduced.

Three installation auxiliary pipes 321 which have vertical axes and are communicated with the inside of the second dust removing pipe 32 are fixed on the circumferential surface of the second dust removing pipe 32, and the installation auxiliary pipes 321 vertically extend upwards; an installation cylinder 341 is fixed at the opening of the purification bag 34, and the installation cylinder 341 is matched with the installation auxiliary pipe 321 and is in threaded connection with the installation auxiliary pipe 321; after the purification bag 34 completes the purification and dust removal of the air, the installation cylinder 341 is detached from the installation auxiliary pipe 321, which facilitates the replacement and cleaning of the purification bag 34.

Referring to fig. 5 and 6, one side of the purification bag 34 is provided with an ash striking mechanism 4 for striking the purification bag 34 horizontally; the ash striking mechanism 4 comprises an impact plate 381 arranged inside the purifying box 33 and an impact driving component 382 arranged outside the purifying box 33 and used for driving the impact plate 381 to move towards or away from the purifying bag 34; the impact plate 381 is vertically arranged and extends in the horizontal direction, and the length of the impact plate 381 is greater than the total length of the three purification bags 34 in the horizontal direction; the impact driving assembly 382 comprises an impact rod 3821 with a horizontal axis, the impact rod 3821 is fixedly connected with the surface of the impact plate 381 far away from the purification bag 34, the impact rod 3821 penetrates through the purification box 33 and extends to the outside of the purification box 33, and the impact rod 3821 is connected with the side wall of the purification box 33 in a sliding way; a cam 3822 and a first driving member for driving the cam 3822 to rotate in a fixed axis manner are arranged on one side, away from the striking plate 381, of the striking rod 3821, and the first driving member adopts a first motor 3823 whose output shaft is fixedly connected with the cam 3822; an abutting plate 3824 abutting against the circumferential surface of the cam 3822 is fixed to one end, close to the cam 3822, of the impact rod 3821, a return spring 3825 sleeved on the impact rod 3821 is arranged between the abutting plate 3824 and the outer box wall of the purification box 33, two ends of the return spring 3825 are fixedly connected with the purification box 33 and the abutting plate 3824 respectively, and the return spring 3825 is in a compression state all the time.

Under the action of the return spring 3825, the end of the striker 3821, i.e., the abutment plate 3824, can constantly abut against the circumferential surface of the cam 3822; in the process of rotation of the cam 3822, the striking rod 3821 is pushed by the cam 3822 or pulled by the abutting plate 3824, that is, the striking rod 3821 moves toward or away from the purification bag 34, the striking rod 3821 further drives the striking plate 381 to move toward or away from the purification bag 34, and the striking plate 381 further can periodically strike the purification bag 34; in the process that the air doped with the dust impurities passes through the purification bag 34, the dust is attached to the inner wall of the purification bag 34, the striking plate 381 periodically strikes the purification bag 34, and the dust impurities attached to the purification bag 34 are shaken off the purification belt by being vibrated, thereby reducing the possibility that the air cannot be discharged from the second dust removal pipe 32 through the purification bag 34 due to the large amount of dust attached to the purification bag 34.

Referring to fig. 2 and 4, a support mesh enclosure 342 with a downward opening is disposed inside the purification bag 34, a buffer spring 343 is fixed at the lower end of the support mesh enclosure 342, and the buffer spring 343 is coaxially fixed at the upper end surface of the mounting cylinder 341; the mesh size of the support screen 342 is larger than the mesh size on the purge bag 34; the supporting mesh 342 can maintain the interior of the purification bag 34 in a bulged state, that is, the purification bag 34 can still maintain a hollow state under the condition of insufficient wind power, so that the purification bag 34 can play a role in blocking dust from passing through, and the possibility that the air cannot pass through due to collapse and toppling over of the purification bag 34 is reduced; the buffer spring 343 can enable the support mesh enclosure 342 and the purge pocket 34 to reduce rigid connection between the support mesh enclosure 342 and the mounting cylinder 341 due to the arrangement of the return spring 3825 when being impacted by the impact plate 381, that is, the support mesh enclosure 342 can rock in the process of being impacted, thereby reducing the possibility of fracture between the support mesh enclosure 342 and the mounting cylinder 341 due to excessive impact force when being impacted.

Referring to fig. 4, a dust baffle 37 is coaxially fixed inside the mounting cylinder 341, a plurality of vent holes 371 for air and dust impurities to pass through are formed in the dust baffle 37, a dust baffle 372 is horizontally arranged above each vent hole 371, a gap exists between each dust baffle 372 and the dust baffle 37, and the area of each dust baffle 372 is larger than that of each vent hole 371; one end of the dust blocking sheet 372 is fixed with a vertical connecting part 373, and the lower end of the connecting part 373 is fixedly connected with the upper surface of the dust blocking plate 37; air with a small amount of dust can reach above the dust shield 37 through the vent hole 371 on the dust shield 37 and enter the purification bag 34; when the striking plate 381 strikes the purification bag 34, the dust particles attached to the purification bag 34 strike off from the purification bag 34, and the dust blocking sheet 372 can prevent the dust from entering the second dust removal pipe 32 through the vent hole 371; when the negative pressure fan 36 is turned off, dust can be shaken off in the process of detaching the purification bag 34, and the dust is difficult to shake out of the purification bag 34 through the dust blocking sheet 372 in the process of detaching the purification bag 34, so that air pollution caused by the fact that the dust escapes to the air in the process of replacing and detaching the purification bag 34 is reduced.

Referring to fig. 5 and 7, the feeding prescreening device includes a guide screen drum 11 horizontally disposed at one end of a dust removal screen drum 22, the guide screen drum 11 is disposed outside the dust removal box 21, one end of the guide screen drum 11 far away from the dust removal box 21 is closed, one end of the guide screen drum 11 near the dust removal box 21 is open, and one end of the guide screen drum 11 near the dust removal box 21 extends toward the inside of the dust removal screen drum 22; the peripheral surface of the material guiding screen cylinder 11 is provided with a plurality of meshes, the diameter of the meshes of the material guiding screen cylinder 11 is smaller than the size of the medicine and larger than the size of dust impurities, namely, the meshes of the material guiding screen cylinder 11 can enable the dust impurities in the medicine to pass through; the guide screen cylinder 11 is coaxially sleeved with a guide sleeve 12 outside, two ends of the guide sleeve 12 are closed, a gap is formed between the inner circumferential surface of the guide sleeve 12 and the outer circumferential surface of the guide screen cylinder 11, and the guide screen cylinder 11 extends to one side far away from the outside of the guide sleeve 12 and close to the dust removal box 21; a screw shaft 13 is coaxially arranged in the material guide screen cylinder 11, one end of the material guide sleeve 12, which is far away from the dust removal box 21, is provided with a second motor 14 for driving the screw shaft 13 to rotate around the axis of the second motor, the second motor 14 is fixed on the material guide sleeve 12, and the screw shaft 13 is rotatably connected with the material guide sleeve 12; a feeding hopper 16 communicated with the interior of the material guiding screen cylinder 11 is fixed on the material guiding screen cylinder 11, and the feeding hopper 16 extends above the material guiding sleeve 12; the material guiding sleeve 12 is provided with a third dust removing pipe 15 communicated with a gap between the material guiding sleeve 12 and the material guiding screen cylinder 11, and the third dust removing pipe 15 is communicated with the first dust removing pipe 31.

Adding the medicine materials into the material guiding screen cylinder 11 through the feeding hopper 16, and conveying the medicine materials into the dedusting screen cylinder 22 along with the rotation of the spiral shaft 13; in the process, the medicine material rolls over in the material guiding screen cylinder 11, and part of dust and impurities in the medicine material enter between the material guiding sleeve 12 and the material guiding screen cylinder 11 through the material guiding screen cylinder 11; the negative pressure fan 36 generates negative pressure for the gap between the material guiding sleeve 12 and the material guiding screen cylinder 11 through the third dust removing pipe 15, and the dust entering between the material guiding sleeve 12 and the material guiding screen cylinder 11 is pumped into the third dust removing pipe 15 and then enters the first dust removing pipe 31 and the cyclone separator 35 to participate in subsequent dust removal; can tentatively remove dust tentatively to the explosive that enters into dust removal sieve section of thick bamboo 22 inside like this, improve explosive dust collection efficiency and effect to a certain extent to take the dust out through third dust removal pipe 15, and then reduced the dust and entered into in the air and cause air pollution.

Referring to fig. 1, an outlet dust collection assembly 5 is arranged on one side of the dust removal box 21 away from the material guide screen drum 11, the outlet dust collection assembly 5 includes a dust collection hopper 51, and the dust collection hopper 51 is arranged above the dust removal box 21 and at the port of the dust removal screen drum 22 away from the material waiting screen drum; the large opening end of the dust collection hopper 51 is vertically downward, the small opening end of the dust collection opening is connected with a fourth dust removal pipe 52, and one end, far away from the dust collection hopper 51, of the fourth dust removal pipe 52 is communicated with the first dust removal pipe 31; in the process that the medicine material rolls in the dedusting screen cylinder 22, the lifted dust part escapes to the external environment of the dedusting screen cylinder 22 from the interior of the dedusting screen cylinder 22; the negative pressure fan 36 creates negative pressure for one end of the dust-removing screen cylinder 22 through the fourth dust-removing pipe 52, and dust escaping from the inside of the dust-removing screen cylinder 22 to the outside of the dust-removing screen cylinder 22 is sucked into the cyclone separator 35 through the first dust-removing pipe 31, so that the air pollution caused by further diffusion of the escaping dust in the environment can be reduced.

The present embodiment is only for explaining the present application, and it is not limited to the present application, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present application.