阅读说明：本技术 药粉回收装置 (Powder recovery device ) 是由 刘景� 于 2018-06-21 设计创作，主要内容包括：本发明公开了一种药粉回收装置,其包括除尘罩、与所述除尘罩一端连接的第一吸粉头和第二吸粉头,与所述除尘罩另一端连接的药粉回收盒,所述除尘罩内设有相互间隔的第一收容腔及第二收容腔,所述药粉回收盒内设有相互间隔的第一回收腔及第二回收腔,所述第一收容腔的一端与所述第一吸粉头连通,所述第一收容腔的另一端与药粉回收盒的第一回收腔连通,所述第二收容腔的一端与第二吸粉头连通,所述第二收容腔的另一端与药粉回收盒的第二回收腔连通。与现有技术相比,由于本发明药粉回收装置内具有两个分别用于回收洁净药粉及非洁净药粉的回收通道,实现了洁净药粉与非洁净药粉的分开回收,从而可以对洁净药粉进行再次利用。(The invention discloses a powder recovery device which comprises a dust hood, a first powder suction head and a second powder suction head which are connected with one end of the dust hood, and a powder recovery box connected with the other end of the dust hood, wherein a first accommodating cavity and a second accommodating cavity which are mutually separated are arranged in the dust hood, a first recovery cavity and a second recovery cavity which are mutually separated are arranged in the powder recovery box, one end of the first accommodating cavity is communicated with the first powder suction head, the other end of the first accommodating cavity is communicated with the first recovery cavity of the powder recovery box, one end of the second accommodating cavity is communicated with the second powder suction head, and the other end of the second accommodating cavity is communicated with the second recovery cavity of the powder recovery box. Compared with the prior art, the powder recovery device is internally provided with two recovery channels which are respectively used for recovering clean powder and unclean powder, so that the clean powder and the unclean powder can be separately recovered, and the clean powder can be reused.)

1. A powder recovery unit which characterized in that: it includes the dust excluding hood, with first powder head and the second of inhaling that dust excluding hood one end is connected inhales the powder head, with the powder recovery box that the dust excluding hood other end is connected, be equipped with the first chamber and the second of acceping of mutual interval in the dust excluding hood and accept the chamber, the powder is retrieved the first chamber and the second of retrieving of being equipped with mutual interval in the box and is retrieved the chamber, first one end of acceping the chamber with first intercommunication of inhaling the powder, first other end of acceping the chamber retrieves the first chamber intercommunication of retrieving of box with powder, the first intercommunication of inhaling is inhaled with the second to the one end that the chamber was acceptd to the second, the other end that the chamber was acceptd to the second retrieves the chamber intercommunication with the second of powder recovery box.

2. The drug powder recovering device according to claim 1, wherein: powder recovery unit is still including connecting dust excluding hood and powder and retrieving the first dust removal pipeline and the second dust removal pipeline of box, first dust removal pipeline intercommunication first accept the chamber and first retrieve the chamber, second dust removal pipeline intercommunication the chamber is retrieved to the second and the chamber is retrieved to the second.

3. The drug powder recovering device according to claim 2, wherein: the dust hood is provided with a first pipe joint communicated with the first accommodating cavity and a second pipe joint communicated with the second accommodating cavity, the powder recovery box is provided with a third pipe joint communicated with the first recovering cavity and a fourth pipe joint communicated with the second recovering cavity, two ends of the first dust removal pipeline are connected with the first pipe joint and the third pipe joint, and two ends of the second dust removal pipeline are connected with the second pipe joint and the fourth pipe joint.

4. The drug powder recovering device according to claim 1, wherein: and an air volume adjusting knob for adjusting the air volume is arranged on the dust hood.

5. A powder recovering device according to claim 3, wherein: the first dust removal pipeline and the second dust removal pipeline are hoses.

6. The drug powder recovering device according to claim 1, wherein: a filter cylinder positioned in the first recovery cavity and the second recovery cavity is arranged in the medicine powder recovery box.

Technical Field

The invention belongs to the technical field of pharmaceutical machinery, and particularly relates to a powder recovery device applied to a tablet press.

Background

In the process of pressing the powder-shaped raw materials into tablets by using a traditional rotary tablet press, dust is generated in a tablet pressing chamber, wherein the main powder is powder carried out from a feeder on a middle punching disc, and the part of the dust is thrown outwards along the middle punching disc along with the high-speed rotation of the middle punching disc and must be removed in time; secondly, a small amount of powder leaks from the gap between the middle die and the lower punch, and the powder falls onto the surface of the dust ring of the lower punch and the upper surface of the lower punch disc along the lower punch and must be removed in time; in addition, the upper punch and the lower punch in the middle mold and in the tablet pressing process can generate impact, can generate the dust emission phenomenon of partial fine powder, and also need to be removed in time.

Dust generated by a traditional rotary tablet press is generally removed through a dust removal system, and the dust removal system comprises a dust removal cover fixed on a tablet press cover plate, a powder suction head communicated with one end of the dust removal cover, a dust removal pipeline communicated with the other end of the dust removal cover and a dust remover communicated with the dust removal pipeline. The dust removal system is mainly used for removing redundant dust generated on the middle punching disc and the lower punching disc of the tablet press, and the redundant dust is sucked away by the dust remover through the dust suction head, the dust removal cover and the dust removal pipeline in sequence.

However, since the excess dust generated on the middle washing plate is clean and the excess dust generated on the lower washing plate is not clean, the dust cannot be recycled due to the mixture of the clean and the unclean when being removed by the dust removing system.

Some pharmaceutical plants must recycle the excess clean dust generated on the tundish when compressing certain tablets, if the raw material is expensive, in order to reduce losses. However, due to the space limitation of the dedusting position of the tablet press, it is impossible to add a dedusting system or device to the centering punch disc independently, and therefore, other feasible schemes must be considered.

Therefore, how to realize the separate recovery of the clean powder and the unclean powder generated in the tablet press is the problem to be solved by the invention.

Disclosure of Invention

The present invention has been made to solve the above problems, and an object of the present invention is to provide a powder recovering apparatus capable of separately recovering clean powder and unclean powder.

In order to achieve the purpose, the invention provides a powder recovery device, which comprises a dust hood, a first powder suction head and a second powder suction head which are connected with one end of the dust hood, and a powder recovery box connected with the other end of the dust hood, wherein a first accommodating cavity and a second accommodating cavity which are mutually spaced are arranged in the dust hood, a first recovery cavity and a second recovery cavity which are mutually spaced are arranged in the powder recovery box, one end of the first accommodating cavity is communicated with the first powder suction head, the other end of the first accommodating cavity is communicated with the first recovery cavity of the powder recovery box, one end of the second accommodating cavity is communicated with the second powder suction head, and the other end of the second accommodating cavity is communicated with the second recovery cavity of the powder recovery box.

Further, powder recovery unit is still including connecting dust excluding hood and powder and retrieving the first dust removal pipeline and the second dust removal pipeline of box, first dust removal pipeline intercommunication first accept the chamber and first retrieve the chamber, second dust removal pipeline intercommunication the chamber is retrieved to the second and the chamber is retrieved to the second.

Further, the dust excluding hood is provided with a first pipe joint for communicating with a first accommodating cavity and a second pipe joint for communicating with a second accommodating cavity, the powder recycling box is provided with a third pipe joint for communicating with a first recycling cavity and a fourth pipe joint for communicating with a second recycling cavity, the two ends of the first dust removing pipeline are connected with the first pipe joint and the third pipe joint, and the two ends of the second dust removing pipeline are connected with the second pipe joint and the fourth pipe joint.

Furthermore, an air volume adjusting knob for adjusting the air volume is arranged on the dust hood.

Furthermore, the first dust removal pipeline and the second dust removal pipeline are hoses.

Furthermore, a filter cylinder positioned in the first recovery cavity and the second recovery cavity is arranged in the medicine powder recovery box.

Compared with the prior art, the powder recovery device is internally provided with two recovery channels which are respectively used for recovering clean powder and unclean powder, so that the clean powder and the unclean powder can be separately recovered, and the clean powder can be reused.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. In the drawings:

fig. 1 is a sectional view of a drug powder recovering device for a tablet press according to a preferred embodiment of the present invention;

fig. 2 is a plan view of a drug powder recovering device for a tablet press according to a preferred embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 and 2, a powder recovering apparatus (portions shown by dotted lines in fig. 1) according to a preferred embodiment of the present invention is applied to a tablet press machine 100, and the tablet press machine 100 includes a tablet press apparatus (portions shown by dotted lines in fig. 1) in addition to the powder recovering apparatus. Specifically, the sheeting apparatus includes, among other things, an upper punch 110, a lower punch 140, a middle punch plate 120, a lower punch plate 130, and a cover plate 150.

The dust recovery device will be specifically described below.

As shown in fig. 1 and 2, the dust recycling apparatus includes a dust hood 10, a first dust suction head 20 and a second dust suction head 40 connected to one end of the dust hood 10, a first dust removal duct 15 and a second dust removal duct 12 connected to the other end of the dust hood 10, and a recycling box 60 connected to the first dust removal duct 15 and the second dust removal duct 12. The recovery box 60 includes a first recovery chamber 61 connected to the first dust removal pipe 15 and a second recovery chamber 62 connected to the second dust removal pipe 12, respectively.

As shown in fig. 1, the dust removing cover 10 is fixed to a cover plate 150 of the tablet press 100 by screws (not shown), and the dust removing cover 10 is used for accommodating dust sucked from the first and second dust suction heads 20 and 40. The upper surface of the dust hood 10 is provided with an air volume adjusting knob 102 for adjusting the air volume according to the amount of dust on the middle impact plate 130 and the lower impact plate 140, wherein the air volume adjusting knob 102 is adjusted in the direction of large air volume when the amount of dust is larger, and the air volume adjusting knob 102 is adjusted in the direction of small air volume when the amount of dust is smaller. Specifically, a partition 104 is disposed in the dust hood 10, and the dust hood 10 is divided into a first receiving cavity 101 and a second receiving cavity 105 by the partition 104. One end of the first receiving chamber 101 is connected to the first powder suction head 20, and one end of the second receiving chamber 105 is connected to the second powder suction head 40. The dust hood 10 is further provided with a first pipe joint 14 and a second pipe joint 11. The other end of the first receiving cavity 101 is communicated with a first pipe joint 14, and the first pipe joint 14 is used for connecting a first dust removing pipeline 15. The other end of the second receiving cavity 105 is communicated with a second pipe joint 11, and the second pipe joint 11 is used for connecting a second dust removing pipeline 12. The dust hood 10 includes an upper cover 106 and a side cover 107, the upper cover 106 corresponds to the first receiving cavity 101, and the side cover 107 corresponds to the second receiving cavity 105.

As shown in fig. 1, the first and second suction heads 20 and 40 are respectively aligned with a dust generation area on the tablet press 100. The first powder suction head 20 is fixed with the upper cover plate 106 of the dust hood 10 by screws (not shown), and the second powder suction head 40 is fixed with the side cover plate 107 of the dust hood 10 by screws (not shown). Since the powder in the compression chamber of the tablet compression machine 100 is easily scattered in the region of the middle punch plate 120 and the region of the lower punch plate 130 during the compression process, the dust generation region includes the region of the middle punch plate 120 and the region of the lower punch plate 130. Thus, the first powder suction head 20 corresponds to the area of the middle punch plate 130 of the tablet press 100, and the second powder suction head 40 corresponds to the area of the lower punch plate 130 of the tablet press 100.

As shown in fig. 1 and 2, the first dust removing duct 15 may be a length of flexible pipe, one end of which is connected to the first pipe connector 14 of the dust hood 10 to communicate with the first receiving cavity 101, and the other end of which is connected to the first recovering cavity 61 of the powder recovering box 60. Similarly, the second dust removing duct 12 may be a length of flexible tube having one end connected to the second pipe joint 11 of the dust hood 10 to communicate with the second receiving cavity 105 and the other end connected to the second recovering cavity 62 of the powder recovering box 60.

As shown in fig. 2, the powder recovery case 60 is provided with a partition 603 therein to divide the powder recovery case 60 into a first recovery chamber 61 and a second recovery chamber 62 which are spaced apart from each other. The first recovery chamber 61 has two first filter cartridges 601 therein, the second recovery chamber 62 has two second filter cartridges 602 therein, and the first and second filter cartridges 601, 602 are used for filtering the sucked powder even if the powder is received in the first and second filter cartridges 601, 602. One end of the medicine powder recovery box 60 is provided with a third pipe joint 16 and a fourth pipe joint 13, the third pipe joint 16 is communicated with the first recovery cavity 61 and is used for connecting the first dust removal pipeline 15, and the fourth pipe joint 13 is communicated with the second recovery cavity 62 and is used for connecting the second dust removal pipeline 12. The other end of the powder recovery box 60 is connected to a dust suction main unit (not shown) of a dust collector.

The operation mode of the medicine powder recovery device is as follows.

The main dust suction unit of the dust catcher serves as a peripheral component of the tablet press 100, and when the fan inside the dust catcher works, negative pressure is generated inside the dust catcher, so that the first dust suction head 20 absorbs dust in the middle impact disc 120 area, passes through the first accommodating cavity 101 of the dust hood 10, and then passes through the first dust removing pipeline 15 to reach the first recovery cavity 61 of the powder recovery box 60. The second powder suction head 40 absorbs the dust in the area of the lower punch 130, passes through the second housing cavity 105 of the dust hood 10, and then passes through the second dust removing duct 12 to reach the second recovery cavity 62 of the powder recovery box 60. Because the first recovery cavity 61 and the second recovery cavity 62 are spaced from each other, the powder in the two recovery cavities cannot be mixed in a cross manner, and clean powder and unclean powder can be recovered respectively. The first powder suction head 20, the first housing cavity 101 of the dust hood 10, the first dust removing duct 15, and the first recycling cavity 61 of the powder recycling box 60 can be regarded as recycling channels of clean powder. The second powder suction head 40, the second housing cavity 105 of the dust hood 10, the second dust removing duct 12, and the second recycling cavity 62 of the powder recycling box 60 can be regarded as recycling channels of unclean powder.

In summary, the powder recycling device of the present invention has two recycling channels for recycling the clean powder and the unclean powder respectively, so as to recycle the clean powder and the unclean powder separately, thereby recycling the clean powder.