CN117206169B - Medical intermediate raw material particle screening device - Google Patents
Medical intermediate raw material particle screening device Download PDFInfo
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- CN117206169B CN117206169B CN202311484435.3A CN202311484435A CN117206169B CN 117206169 B CN117206169 B CN 117206169B CN 202311484435 A CN202311484435 A CN 202311484435A CN 117206169 B CN117206169 B CN 117206169B
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- 238000012216 screening Methods 0.000 title claims abstract description 115
- 239000002245 particle Substances 0.000 title claims abstract description 26
- 239000002994 raw material Substances 0.000 title claims abstract description 18
- 238000004140 cleaning Methods 0.000 claims abstract description 69
- 239000000463 material Substances 0.000 claims abstract description 48
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 239000000428 dust Substances 0.000 claims abstract description 24
- 238000003860 storage Methods 0.000 claims abstract description 23
- 230000000903 blocking effect Effects 0.000 claims abstract description 21
- 239000000758 substrate Substances 0.000 claims description 39
- 239000012450 pharmaceutical intermediate Substances 0.000 claims description 13
- 238000007599 discharging Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000013461 design Methods 0.000 description 20
- 238000007873 sieving Methods 0.000 description 13
- 239000000543 intermediate Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000013016 damping Methods 0.000 description 3
- 239000003814 drug Substances 0.000 description 3
- 230000005484 gravity Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Abstract
The invention belongs to the technical field of screening devices, and particularly relates to a screening device for raw material particles of a medical intermediate, which comprises a machine body, a screening machine, a hole blocking cleaning mechanism and a dust suction mechanism; the machine body is provided with a feed inlet, a screening channel and a discharge outlet which are sequentially communicated, the feed inlet is connected with a feed pipe, and the screening channel is provided with the screening machine; the hole blocking cleaning mechanism comprises a hole cleaning machine located above the screening machine and a storage machine located below the screening machine, wherein the hole cleaning machine is arranged on the screening channel in a sliding mode and can clean plugs in the screening holes, and the storage machine is arranged on the machine body in a sliding mode and is used for forming a cleaning channel for guiding the plugs to flow out of the machine body. The medical intermediate raw material particle screening device is cleaned through a hole blocking cleaning mechanism, and the hole cleaning machine slides reciprocally and cleans the blocking objects in the sieve holes so as to lead the blocking objects to separate from the sieve holes and fall down; the falling plugs are stored by the storage machine, so that the plugs are prevented from falling out of the discharge hole and being mixed into the sieved materials.
Description
Technical Field
The invention belongs to the technical field of screening devices, and particularly relates to a screening device for raw material particles of a medical intermediate.
Background
The medical intermediate is a chemical raw material or chemical product used in the process of synthesizing medicines. The chemical product can be produced in a common chemical plant without a production license of the medicine, and can be used for synthesizing the medicine as long as the chemical product reaches a certain level.
For the granular pharmaceutical intermediates, screening according to particle size is required in the production process, so that a screening device is required for the production of the granular pharmaceutical intermediates. The existing screening device is easy to cause the situation that the screen holes are blocked after being used for a long time in the using process, so that the discharging speed of the screening device is reduced, and the subsequent processing is influenced.
Disclosure of Invention
The invention aims to provide a screening device for raw material particles of medical intermediates, which is used for solving the problems in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
a screening device for medical intermediate raw material particles comprises a machine body, a screening machine, a hole blocking cleaning mechanism and a dust suction mechanism;
the machine body is provided with a feed inlet, a screening channel and a discharge outlet which are sequentially communicated, the feed inlet is connected with a feed pipe, the screening channel is provided with the screening machine, and the screening machine comprises a screen plate provided with a plurality of screen holes;
the hole blocking cleaning mechanism comprises a hole cleaning machine positioned above the screening machine and a storage machine positioned below the screening machine, wherein the hole cleaning machine is arranged on the screening channel in a sliding manner and can clean blocking objects in the screen holes, and the storage machine is arranged on the machine body in a sliding manner and is used for forming a cleaning channel for guiding blocking objects to flow out of the machine body;
the dust suction mechanism is fixed on the machine body and positioned between the storage machine and the discharge port, and a conveying belt is arranged on the discharge port.
In one possible design, the hole cleaning machine comprises a first driver, a first substrate and a hole cleaning rod, wherein the first driver is fixed on the machine body, the output end of the first driver is connected with the first substrate through a steel wire rope, the first substrate is arranged in the screening channel in a sliding manner, correspondingly, the top surface of the first substrate is connected with the steel wire rope, the bottom surface of the first substrate is connected with the hole cleaning rod, and the hole cleaning rod is provided with a plurality of hole cleaning rods and arranged on the first substrate in an array mode.
In one possible design, the storage machine comprises a second drive, a deflector and a first guide cylinder;
the second driver is fixed on the outer wall of the machine body, and the output end of the second driver is connected with the guide plate and used for driving the guide plate to slide back and forth;
the guide plate is obliquely and slidably arranged on the machine body, at least part of the guide plate is positioned outside the machine body, and correspondingly, a first outlet which is adapted to the guide plate is arranged on the machine body;
the first guide cylinder is positioned below the guide plate, the upper end of the first guide cylinder is communicated with the cleaning channel, the lower end of the first guide cylinder is communicated with the conveying belt or the storage tank, and when the lower end of the first guide cylinder is communicated with the conveying belt, the lower end of the first guide cylinder is provided with a control valve for controlling the opening and the closing;
when the guide plate is positioned on the first station, the guide plate is partially penetrated in the screening channel and separates the screening channel into two sections which are not communicated with each other, the rest part of the guide plate is positioned outside the machine body and communicated with the first guide cylinder, and correspondingly, the cleaning channel comprises the top surface of the guide plate and the first guide cylinder; when the guide plate is positioned on the second station, one end of the guide plate is positioned on the first outlet, and the other end of the guide plate extends outwards and is lapped on the first guide cylinder.
In one possible design, the deflector is configured as a U-shaped plate with high sides and low middle, and the sides of the deflector act as baffles; along the direction far away from the machine body, the guide plate gradually inclines downwards, and the inclination angle of the guide plate is 1-2 degrees.
In one possible design, the baffle is divided into a first subsection and a second subsection hinged to each other, and when the baffle is in the second station, the hinge point is located outside the first guide cylinder, accordingly, one end of the first subsection is lapped on the first outlet, the other end of the first subsection is lapped on the first guide cylinder, and the second subsection can rotate around the hinge point to fold the baffle.
In one possible design, the first outlet is provided with a rotary door, the second subsection is provided with a supporting rod, and correspondingly, when the deflector is positioned at the first station, the supporting rod is abutted against and drives the rotary door to rotate so that the first outlet is communicated with the screening channel and the outside.
In one possible design, the first subsection is provided with a deflector hole which is adapted to the first guide cylinder, the second subsection is provided with a baffle plate which extends from the deflector hole, correspondingly, when the deflector is in the second station, the deflector is positioned on the first guide cylinder, the deflector is folded, and the baffle plate rotates and is separated from the deflector hole.
In one possible design, the sizer includes a second base plate, a vibrator, a side plate, and a second guide cylinder;
the second base plate is obliquely arranged on the machine body, one end of the second base plate is arranged in the machine body and used for separating the screening ends of the screening channels, and the other end of the second base plate is arranged outside the machine body and used for communicating the discharging ends of the second guide cylinders;
correspondingly, the screening end is provided with a screening opening, and the screen plate is arranged on the screening opening in a penetrating way; the discharge end is provided with a discharge hole which is communicated with the second guide cylinder; the machine body is provided with a second outlet which is positioned above the top surface of the second substrate, and the second outlet is communicated with the screening end and the discharging end;
the output end of the vibrator is connected with the second substrate, and correspondingly, an elastic buffer layer is arranged at the joint of the machine body and the second substrate;
the side plate is fixed on the part of the second base plate, which is positioned outside the machine body, and a plurality of coamings are arranged on the side plate and form a coaming which is wound on the second base plate;
the upper end of the second guide cylinder is fixedly connected with the discharge end, the lower end of the second guide cylinder extends downwards and is connected with the first guide cylinder, and the discharge cylinder is formed by the first guide cylinder and the second guide cylinder.
In one possible design, the screen plate comprises an upper plate and a lower plate which are sequentially arranged from top to bottom, the upper plate is fixed on the second base plate, and two ends of the lower plate are respectively provided with an adjusting mechanism so that the screen holes of the upper plate and the screen holes of the lower plate are staggered;
the adjusting mechanism comprises an adjusting hole, an adjusting screw and an adjusting wedge block, wherein the adjusting hole is positioned on the sieve plate and adjacent to the end part of the lower plate, the adjusting screw penetrates through the adjusting hole, the adjusting wedge block is fixed on the adjusting screw, the adjusting wedge block is provided with an adjusting inclined surface which is abutted to the end part of the lower plate, and when the adjusting screw is screwed, the adjusting wedge block moves up and down along the adjusting screw so as to drive the lower plate to slide.
In one possible design, the dust suction means comprises a blower and an exhaust fan arranged opposite each other, and the screening channel comprises an inclined section, the exhaust fan being fixed outside the inclined section.
The beneficial effects are that:
the medical intermediate raw material particle screening device is cleaned through a hole blocking cleaning mechanism, wherein a hole cleaning machine slides reciprocally and cleans plugs in the sieve holes so as to enable the plugs to separate from the sieve holes and fall down; to the plug that drops, accomodate through accomodating the machine, avoid the plug to drop out the organism from the discharge gate, avoid the plug to mix in the material of screening out, reduce extra process, help improving the efficiency of screening.
Drawings
Fig. 1 is a schematic structural diagram of a screening device for raw material particles of pharmaceutical intermediate when a baffle is located at a first station.
Fig. 2 is a schematic structural diagram of a screening device for raw material particles of pharmaceutical intermediate when the baffle is located at the second station.
Fig. 3 is a schematic diagram of the cooperation of the hole cleaning machine and the machine body.
Fig. 4 is a schematic structural view of a baffle.
Fig. 5 is a schematic diagram illustrating the cooperation between the second substrate and the screen plate.
Fig. 6 is a schematic diagram of the cooperation of the second substrate and the screen plate when the screen plate includes an upper plate and a lower plate.
In the figure:
100. a body; 101. a feed inlet; 102. a sieving passage; 103. a discharge port; 104. a feed pipe; 105. a conveyor belt; 106. a first outlet; 107. a rotating door; 108. a second outlet; 109. an elastic buffer layer; 110. an inclined section; 200. a sieving machine; 201. a sieve plate; 202. a second substrate; 203. a side plate; 204. a second guide cylinder; 205. an upper plate; 206. a lower plate; 300. a hole blocking cleaning mechanism; 310. a hole cleaning machine; 311. a first driver; 312. a first substrate; 313. a hole cleaning rod; 320. a storage machine; 321. a second driver; 322. a deflector; 323. a first guide cylinder; 301. a first sub-segment; 302. a second subsection; 303. a supporting rod; 304. a deflector aperture; 305. a shielding plate; 400. a dust suction mechanism; 401. a blower; 402. an exhaust fan; 500. an adjusting mechanism; 501. an adjustment aperture; 502. adjusting a screw; 503. and adjusting the wedge blocks.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be briefly described below with reference to the accompanying drawings and the description of the embodiments or the prior art, and it is obvious that the following description of the structure of the drawings is only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art. It should be noted that the description of these examples is for aiding in understanding the present invention, but is not intended to limit the present invention.
Examples:
as shown in fig. 1 to 6, a pharmaceutical intermediate raw material particle screening apparatus includes a body 100, a screening machine 200, a hole blocking cleaning mechanism 300, and a dust suction mechanism 400;
the machine body 100 is provided with a feed inlet 101, a screening channel 102 and a discharge outlet 103 which are sequentially communicated, the feed inlet 101 is connected with a feed pipe 104, the screening channel 102 is provided with a screening machine 200, and the screening machine 200 comprises a screen plate 201 provided with a plurality of screen holes;
the plugging cleaning mechanism 300 comprises a hole cleaning machine 310 positioned above the sieving machine 200 and a storage machine 320 positioned below the sieving machine 200, wherein the hole cleaning machine 310 is arranged on the sieving channel 102 in a sliding manner and can clean plugs in sieve holes, and the storage machine 320 is arranged on the machine body 100 in a sliding manner and is used for forming a cleaning channel for guiding the plugs to flow out of the machine body 100;
the dust suction mechanism 400 is fixed on the machine body 100 and is positioned between the storage machine 320 and the discharge port 103, and the discharge port 103 is provided with a conveying belt 105.
Aiming at the situation that the sieve holes are blocked, the medical intermediate raw material particle screening device cleans through a blocked hole cleaning mechanism 300, wherein a hole cleaning machine 310 slides back and forth and cleans the blocking matters in the sieve holes so as to enable the blocking matters to separate from the sieve holes and fall down; to the plug that drops, accomodate through accomodating machine 320, avoid the plug to drop out of organism 100 from discharge gate 103, avoid the plug to mix in the material of screening out, reduce extra process, help improving the efficiency of screening.
The material will collide during screening, and part of the material will thus produce powder impurities, which will pass through the screen deck 201 and be mixed into the material. In this regard, the dust suction mechanism 400 is disposed in the machine body 100, and separation is achieved through the dust suction mechanism 400, so that the impurity content is reduced, and the quality of material screening is further improved.
In operation, material is fed into the body 100 through the feed tube 104, moves along the screening passage 102 and sequentially past the screen 200 and the dust suction mechanism 400. As shown in FIGS. 1 and 2, the body 100 is preferably positioned vertically such that the screening passage 102 is vertical and the material can fall under the force of gravity. Wherein the materials are screened at the screening machine 200, the materials with larger particle sizes are trapped on the screening machine 200, and the materials with smaller particle sizes pass through the screening machine 200; the material passes through the classifier 200 and then through the dust suction mechanism 400 to reduce the dust content. After the dust is sucked, the material falls onto the conveyor belt 105 and is sent out of the machine body 100, and screening is achieved.
When the feed rate of the feed pipe 104 is kept unchanged and the discharge rate of the conveyor belt 105 is reduced, that is, the screen holes on the screen plate 201 are blocked more, cleaning should be performed. At this point, the feed pipe 104 stops feeding, and after the discharge of the conveyor belt 105 is reduced, the screening of the materials in the machine body 100 is completed. At this point, the screen 200 is shut down, the receiver 320 is activated to form a clear channel within the screen channel 102, the hole cleaner 310 is then activated, the holes cleaner 310 is brought into proximity with the screen 200 to clear the holes, and plugs fall onto the clear channel and flow out. After the cleaning is finished, the hole cleaning machine 310 and the storage machine 320 are reset, and the materials are fed again for screening.
In this embodiment, the hole cleaning machine 310 includes a first driver 311, a first substrate 312 and a hole cleaning rod 313, the first driver 311 is fixed on the machine body 100, the output end of the first driver 311 is connected with the first substrate 312 through a wire rope, the first substrate 312 is slidably disposed in the sieving channel 102, correspondingly, the top surface of the first substrate 312 is connected with the wire rope, the bottom surface of the first substrate 312 is connected with the hole cleaning rod 313, and the hole cleaning rod 313 is provided with a plurality of holes and arranged on the first substrate 312 in an array.
Based on the above design, the diameter of the hole cleaning bars 313 is smaller than the diameter of the sieve holes, and the hole cleaning bars 313 are arranged in an array, and each hole cleaning bar 313 corresponds to one sieve hole. The first substrate 312 is driven by the first driver 311 to descend, the hole cleaning rods 313 pass through the holes, if a blockage exists in the holes, the hole cleaning rods 313 strike and separate the blockage from the holes, and if no blockage exists in the holes, the hole cleaning rods 313 pass through the holes.
When the first substrate 312 is smoothly dropped without being blocked, that is, it indicates that no blockage blocks the drop of the cleaning bar 313, which also indicates that cleaning is completed. Further, when cleaning the blockage, the first driver 311 drives the first substrate 312 to reciprocate, and the working mode is simple.
In the present embodiment, the storage machine 320 includes a second driver 321, a baffle 322, and a first guide cylinder 323;
the second driver 321 is fixed on the outer wall of the machine body 100, and an output end of the second driver 321 is connected to the guide plate 322 and is used for driving the guide plate 322 to slide reciprocally;
the guide plate 322 is obliquely and slidably arranged on the machine body 100, and the guide plate 322 is at least partially positioned outside the machine body 100, and correspondingly, the machine body 100 is provided with a first outlet 106 which is adapted to the guide plate 322;
the first guide cylinder 323 is positioned below the guide plate 322, the upper end of the first guide cylinder 323 is communicated with the cleaning channel, and the lower end of the first guide cylinder 323 is communicated with the conveying belt 105 or the storage tank;
wherein, the deflector 322 has a first station and a second station, when the deflector 322 is located on the first station, a part of the deflector 322 is penetrated in the screening channel 102 and separates the screening channel 102 into two sections which are not communicated with each other, the rest part of the deflector 322 is located outside the machine body 100 and is communicated with the first guide cylinder 323, and correspondingly, the cleaning channel comprises the top surface of the deflector 322 and the first guide cylinder 323; when the deflector 322 is in the second position, one end of the deflector 322 is positioned at the first outlet 106, and the other end of the deflector 322 extends outwardly and overlaps the first guide cylinder 323.
Based on the above design, the second driver 321 provides power to drive the deflector 322 to slide reciprocally, so as to realize the switching between the first station and the second station. The purpose of the station switching of the deflector 322 is that, when the deflector 322 forms a cleaning channel, in order to avoid that the blockage falls onto the conveyor belt 105, the deflector 322 separates the screening channel 102 into two sections which are not communicated with each other, so as to ensure that the blockage falls onto the deflector 322 entirely, and the deflector 322 is arranged obliquely, so that the blockage rolls into the first guide cylinder 323 along the deflector 322; conversely, when the machine body 100 performs sieving, the material should fall onto the conveyor belt 105, and the deflector 322 should be separated from the sieving channel 102 to ensure that the material falls onto the designed position.
The first guide cylinder 323 is used for guiding the blocking objects, so that the blocking objects are collected, the recycling is facilitated, and the utilization rate of materials is improved. Alternatively, as shown in fig. 1, the lower end of the first guide cylinder 323 communicates with the conveyor belt 105, and the conveying of the blockage is realized by the conveyor belt 105, so that the arrangement of additional components is reduced. It is easy to understand that the material is separately transported with the blockage, and correspondingly, the lower end of the first guide cylinder 323 is provided with a control valve for controlling the opening and closing, and the first guide cylinder 323 can temporarily store the blockage by controlling the falling of the blockage through the control valve. Or, the lower end of the first guide cylinder 323 is communicated with the storage tank, and the blockage flows into the storage tank along the first guide cylinder 323, so that the blockage is collected.
It will be readily appreciated that the first driver 311 and the second driver 321 are selected from any suitable commercially available model, and the present invention is not limited in this regard.
In one possible implementation, the baffle 322 is configured as a U-shaped plate with high sides and low middle, and the sides of the baffle 322 act as baffles. Based on the above design, through constructing to U template, reduce the probability that the jam falls out the guide plate 322, improve the collection rate of jam, also avoid the jam to mix in the material.
In one possible implementation, the baffle 322 is gradually inclined downward in a direction away from the body 100, and the inclination angle of the baffle 322 is 1-2 degrees. Based on the above design, the plugs can automatically roll along the guide plates 322 by tilting, so that the use of related driving equipment is reduced. At the same time, by reducing the pitch of the baffles 322, it is helpful to reduce the space occupied by the baffles 322 within the screening channel 102, thereby reducing the length of the screening channel 102.
In one possible implementation, the baffle 322 is divided into a first subsection 301 and a second subsection 302 which are hinged to each other, and when the baffle 322 is in the second station, the hinge point is located outside the first guide cylinder 323, accordingly, one end of the first subsection 301 is overlapped on the first outlet 106, the other end of the first subsection 301 is overlapped on the first guide cylinder 323, and the second subsection 302 can rotate around the hinge point to fold the baffle 322.
Based on the above design, as shown in fig. 2, when the baffle 322 is at the second station, the baffle 322 is located outside the machine body 100, which occupies a larger space and prevents the passage of surrounding personnel and equipment, so the baffle 322 is divided into a first sub-section 301 and a second sub-section 302, and the first sub-section 301 and the second sub-section 302 are hinged to each other, so as to realize the folding of the baffle 322. That is, when the deflector 322 is in the first position, the deflector 322 is deployed and of sufficient length to form a cleaning path and connect to the first guide cylinder 323. When the baffle 322 is in the second position, the baffle 322 is folded and shortened in length.
Preferably, a damping shaft is selected at the hinge, and the damping shaft enables the first subsection 301 and the second subsection 302 to be kept at a certain angle through damping, so that structural stability of the deflector 322 during deployment is ensured.
In a possible implementation, the first outlet 106 is provided with a rotary door 107, and the second subsection 302 is provided with a supporting rod 303, and accordingly, when the deflector 322 is in the first station, the supporting rod 303 abuts against and drives the rotary door 107 to rotate, so that the first outlet 106 is communicated with the sieving passage 102 and the outside.
Based on the above design, during the process of sieving the material by the machine body 100, the material passing through the sieving machine 200 may fall out from the first outlet 106, so the rotary door 107 is provided and the first outlet 106 is blocked, so that the falling out of the material is reduced and the waste is reduced. Meanwhile, in order to ensure that the plugs smoothly flow out in the process of cleaning the sieve holes, the rotary door 107 should be opened at this time, and in order to improve the convenience of use, the second subsection 302 is provided with the supporting rod 303, and the rotary door 107 is jacked up by the supporting rod 303, so that the workload of staff is reduced. Conversely, the deflector 322 slides outwards, the abutment 303 is disengaged from the rotary door 107, and the rotary door 107 will return under the action of gravity.
In one possible implementation, the first subsection 301 is provided with a deflector hole 304 adapted to the first guide cylinder 323, and the second subsection 302 is provided with a shielding plate 305 extending from the deflector hole 304, and accordingly, when the deflector 322 is in the second position, the deflector hole 304 is positioned on the first guide cylinder 323, the deflector 322 is folded, and the shielding plate 305 is rotated and separated from the deflector hole 304.
Based on the above design, when the upper end of the first guide cylinder 323 can also be used for feeding, the baffle 322 on the first guide cylinder 323 forms a seal, and in order to increase the speed of the material flowing in the first guide cylinder 323, the baffle 322 is provided with the guide hole 304 and the folding plate. Then, when the baffle 322 is in the first position, the baffle 322 expands and the first subsection 301 and the second subsection 302 lie on a common line, and the baffle 305 shields the baffle aperture 304, ensuring that the obstruction flows along the baffle 322 into the first guide cylinder 323. Conversely, when the deflector 322 is in the second position, the deflector aperture 304 is located on the first guide cylinder 323, the deflector 322 is folded, and the shielding plate 305 rotates and is separated from the deflector aperture 304, so as to prevent the shielding plate 305 from blocking the first guide cylinder 323.
In this embodiment, the sizer 200 includes a second base plate 202, a vibrator, a side plate 203, and a second guide cylinder 204;
the second base plate 202 is obliquely arranged on the machine body 100, one end of the second base plate 202 is configured to be positioned in the machine body 100 and used for separating the screening ends of the screening channels 102, and the other end of the second base plate 202 is configured to be positioned outside the machine body 100 and used for communicating with the discharging end of the second guide cylinder 204;
correspondingly, the screening end is provided with a screening opening, and the screen plate 201 is arranged on the screening opening in a penetrating way; the discharge end is provided with a discharge hole which is communicated with the second guide cylinder 204; the machine body 100 is provided with a second outlet 108 positioned above the top surface of the second substrate 202, and the second outlet 108 is communicated with the screening end and the discharging end;
the output end of the vibrator is connected with the second substrate 202, and correspondingly, an elastic buffer layer 109 is arranged at the joint of the machine body 100 and the second substrate 202;
the side plate 203 is fixed on the part of the second base plate 202 outside the machine body 100, and the side plate 203 is provided with a plurality of coamings which are wound on the second base plate 202;
the upper end of the second guide cylinder 204 is fixedly connected with a discharge end, the lower end of the second guide cylinder 204 extends downwards and is connected with the first guide cylinder 323, and the first guide cylinder 323 and the second guide cylinder 204 form a discharge cylinder.
Based on the above design, when the sieving machine 200 is in operation, the smaller size material will pass through the mesh and fall, and the larger size material is retained on the sieve plate 201. Further, when the trapped material is too much, the screening efficiency of the screen plate 201 will also decrease, and at the same time, the second substrate 202 is connected to the vibrating machine, that is, the screening machine 200 improves the screening efficiency through vibration, but the vibration screening also increases the intensity and frequency of the material collision, so that the dust generated during the material screening will also increase. In this regard, the second substrate 202 extends beyond the base, so that the trapped material can flow from the screening end of the second substrate 202 to the discharge end, reducing the amount of material deposited at the screening end, to increase the screening efficiency of the screening machine 200.
Meanwhile, the second substrate 202 is inclined so that the materials move towards the discharge end under the action of gravity, and the flow efficiency of the trapped materials is improved.
Any suitable commercially available vibrator may be used, and in order to reduce the influence of vibration on the machine body 100, the second substrate 202 is connected to the machine body 100 through the elastic buffer layer 109, and the elastic buffer layer 109 is used to absorb the impact, so that the machine body 100 is kept relatively stationary. The side plate 203 is used for forming a coaming to prevent the material from flowing out of the second substrate 202, so that the waste of the material and the pollution of the falling material to the surrounding environment are reduced.
The material flows along the second base plate 202 to the second guide cylinder 204, preferably the second guide cylinder 204 communicates with the first guide cylinder 323 to reduce the amount of related components. It will be readily appreciated that the effluent material contains a portion of material having a desired particle size, so that the effluent material can be screened again, so that the material and plug are transported separately to avoid intermixing.
Meanwhile, as shown in fig. 4, the first subsection 301 is provided with a guide hole 304 adapted to the first guide cylinder 323, the second subsection 302 is provided with a shielding plate 305 extending from the guide hole 304, and the second subsection 302 is rotated to fold the guide plate 322, so that the guide plate 322 is prevented from blocking the first guide cylinder 323, and the discharge cylinder is ensured to be in a communicating state.
Considering that the flowing materials are more, the lower end of the first guide cylinder 323 is preferably communicated with the storage tank, so that excessive materials are prevented from being stored in the discharging cylinder, and damage to the discharging cylinder due to larger bearing is avoided.
In a possible implementation manner, the screen plate 201 includes an upper plate 205 and a lower plate 206 that are sequentially disposed from top to bottom, the upper plate 205 is fixed on the second base plate 202, and two ends of the lower plate 206 are respectively provided with an adjusting mechanism 500, so that the mesh holes of the upper plate 205 and the mesh holes of the lower plate 206 are staggered with each other. Based on the above design, the position of the lower plate 206 is adjusted by the adjusting mechanism 500, and the lower plate 206 moves relative to the upper plate 205 and the screen holes of the lower plate and the upper plate are staggered, so that the adjustment of the screen hole size is realized, and the screen plate 201 can meet the screening requirements of different particle sizes.
Further, for the hole cleaning machine 310, before cleaning the screen holes, the lower plate 206 moves and resets so that the screen holes of the upper plate 205 and the screen holes of the lower plate 206 are coaxial, the cleaning Kong Gang is prevented from abutting the lower plate 206, and the damage probability of the hole cleaning machine 310 is reduced. At the same time, when the lower plate 206 is reset, the diameter of the sieve holes is restored to the maximum value, and then part of plugs with smaller particle sizes automatically fall down, so that the workload of the hole cleaning machine 310 is reduced.
In addition, considering that the sieving machine 200 includes a vibrator, two adjusting mechanisms 500 are provided at both ends of the lower plate 206, respectively, and the two adjusting mechanisms 500 can also function as a clamp to hold the lower plate 206 at a desired position
As shown in fig. 6, the adjusting mechanism 500 includes an adjusting hole 501, an adjusting screw 502 and an adjusting wedge 503, the adjusting hole 501 is located on the screen plate 201 and adjacent to the end of the lower plate 206, the adjusting screw 502 is penetrated on the adjusting hole 501, the adjusting wedge 503 is fixed on the adjusting screw 502, and the adjusting wedge 503 has an adjusting inclined surface abutting against the end of the lower plate 206, when the adjusting screw 502 is screwed, the adjusting wedge 503 moves up and down along the adjusting screw 502 to drive the lower plate 206 to slide.
Based on the above design, the adjusting screw 502 is screwed to move the adjusting wedge 503 up and down along the adjusting screw 502, the adjusting wedge 503 is abutted to the lower plate 206 through the adjusting inclined surface, and the up and down movement of the adjusting wedge 503 acts on the lower plate 206 through the adjusting inclined surface to slide the lower plate 206 left and right. Accordingly, both adjustment mechanisms 500 are adjusted simultaneously to achieve clamping of the lower plate 206. At the same time, the accuracy of the movement of the lower plate 206 is improved by adjusting the threads on the screw 502 to ensure that the size of the screen holes after adjustment meets the screening requirements.
Preferably, the adjusting hole 501 is detachably provided with a blocking piece, and the blocking piece is inserted into the adjusting hole 501 in a non-adjusting period to fix the positions of the adjusting screw 502 and the adjusting wedge 503, so that the influence of vibration on the adjusting screw and the adjusting wedge 503 is reduced. It is easy to understand that the portion of the block connecting the adjusting screw 502 and the adjusting wedge 503 is made of an elastic material to improve the adaptability, and the rest of the block is provided with a friction surface to improve the stability of the block connecting the adjusting hole 501.
In this embodiment, the dust suction mechanism 400 comprises a blower 401 and an exhaust fan 402 arranged opposite each other, and accordingly the screening channel 102 comprises an inclined section 110, the exhaust fan 402 being fixed outside the inclined section 110.
Based on the design scheme, the blower 401 blows air and blows dust to the exhaust fan 402, and the exhaust fan 402 draws air and sucks the dust, so that the dust and materials are separated. Meanwhile, the motion track of the material and dust under the air supply of the blower 401 is similar to a parabola, and as shown in fig. 1 and 2, the exhaust fan 402 is preferably positioned below the blower 401, so that the action range of the exhaust fan 402 is enlarged, and the dust sucking effect is improved. It will be readily appreciated that the inclined section 110 is provided with a hole structure through which dust passes.
Finally, it should be noted that: the foregoing description is only of the preferred embodiments of the invention and is not intended to limit the scope of the invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. The screening device for the raw material particles of the pharmaceutical intermediate is characterized by comprising a machine body (100), a screening machine (200), a hole blocking cleaning mechanism (300) and a dust suction mechanism (400);
the machine body (100) is provided with a feed inlet (101), a screening channel (102) and a discharge outlet (103) which are sequentially communicated, the feed inlet (101) is connected with a feed pipe (104), the screening channel (102) is provided with a screening machine (200), and the screening machine (200) comprises a screen plate (201) provided with a plurality of screen holes;
the hole blockage cleaning mechanism (300) comprises a hole cleaning machine (310) positioned above the screening machine (200) and a storage machine (320) positioned below the screening machine (200), wherein the hole cleaning machine (310) is arranged on the screening channel (102) in a sliding manner and can clean blockage in a screen hole, and the storage machine (320) is arranged on the machine body (100) in a sliding manner and is used for forming a cleaning channel for guiding blockage to flow out of the machine body (100);
the dust suction mechanism (400) is fixed on the machine body (100) and positioned between the storage machine (320) and the discharge port (103), and the discharge port (103) is provided with a conveying belt (105);
the hole cleaning machine (310) comprises a first driver (311), a first substrate (312) and a hole cleaning rod (313), wherein the first driver (311) is fixed on the machine body (100), the output end of the first driver (311) is connected with the first substrate (312) through a steel wire rope, the first substrate (312) is arranged in the screening channel (102) in a sliding manner, correspondingly, the top surface of the first substrate (312) is connected with the steel wire rope, the bottom surface of the first substrate (312) is connected with the hole cleaning rod (313), and the hole cleaning rod (313) is provided with a plurality of holes which are distributed on the first substrate (312) in an array manner;
the storage machine (320) comprises a second driver (321), a guide plate (322) and a first guide cylinder (323);
the second driver (321) is fixed on the outer wall of the machine body (100), and the output end of the second driver (321) is connected with the guide plate (322) and is used for driving the guide plate (322) to slide back and forth;
the guide plate (322) is obliquely and slidably arranged on the machine body (100), and the guide plate (322) is at least partially positioned outside the machine body (100), and correspondingly, a first outlet (106) which is adapted to the guide plate (322) is arranged on the machine body (100);
the first guide cylinder (323) is positioned below the guide plate (322), the upper end of the first guide cylinder (323) is communicated with the cleaning channel, the lower end of the first guide cylinder (323) is communicated with the conveying belt (105) or the storage tank, and when the lower end of the first guide cylinder (323) is communicated with the conveying belt (105), the lower end of the first guide cylinder (323) is provided with a control valve for controlling opening and closing;
when the deflector (322) is positioned on the first station, a part of the deflector (322) penetrates through the screening channel (102) and separates the screening channel (102) into two sections which are not communicated with each other, the rest part of the deflector (322) is positioned outside the machine body (100) and communicated with the first guide cylinder (323), and correspondingly, the cleaning channel comprises the top surface of the deflector (322) and the first guide cylinder (323); when the deflector (322) is in the second station, one end of the deflector (322) is positioned on the first outlet (106), and the other end of the deflector (322) extends outwards and is lapped on the first guide cylinder (323).
2. The apparatus for screening raw material particles for pharmaceutical intermediate according to claim 1, wherein the baffle plate (322) is configured as a U-shaped plate with high sides and low middle, and both sides of the baffle plate (322) serve as a baffle plate; the guide plate (322) gradually inclines downwards along the direction far away from the machine body (100), and the inclination angle of the guide plate (322) is 1-2 degrees.
3. A pharmaceutical intermediate raw material particle screening apparatus according to claim 1, wherein the baffle (322) is divided into a first subsection (301) and a second subsection (302) hinged to each other, and when the baffle (322) is in the second station, the hinge point is located outside the first guide cylinder (323), and accordingly, one end of the first subsection (301) is overlapped on the first outlet (106), the other end of the first subsection (301) is overlapped on the first guide cylinder (323), and the second subsection (302) can rotate about the hinge point to fold the baffle (322).
4. A pharmaceutical intermediate material particle screening apparatus according to claim 3, wherein the first outlet (106) is provided with a rotary door (107), the second subsection (302) is provided with a support rod (303), and accordingly, when the deflector (322) is in the first station, the support rod (303) abuts against and drives the rotary door (107) to rotate, so that the first outlet (106) communicates with the screening passage (102) and the outside.
5. A pharmaceutical intermediate material particle screening device according to claim 3, wherein the first subsection (301) is provided with a deflector aperture (304) adapted to the first guide cylinder (323), and the second subsection (302) is provided with a shield (305) extending from the deflector aperture (304), and correspondingly, when the deflector (322) is in the second position, the deflector aperture (304) is positioned on the first guide cylinder (323), the deflector (322) is folded, and the shield (305) is rotated and disengaged from the deflector aperture (304).
6. The pharmaceutical intermediate raw material particle screening apparatus according to claim 1, wherein the screening machine (200) includes a second base plate (202), a vibrator, a side plate (203), and a second guide cylinder (204);
the second base plate (202) is obliquely arranged on the machine body (100), one end of the second base plate (202) is configured to be positioned in the machine body (100) and used for separating screening ends of the screening channels (102), and the other end of the second base plate (202) is configured to be positioned outside the machine body (100) and used for communicating with a discharge end of the second guide cylinder (204);
correspondingly, the screening end is provided with a screening opening, and a screen plate (201) is arranged on the screening opening in a penetrating way; the discharge end is provided with a discharge hole which is communicated with a second guide cylinder (204); a second outlet (108) positioned above the top surface of the second base plate (202) is arranged on the machine body (100), and the second outlet (108) is communicated with the screening end and the discharging end;
the output end of the vibrator is connected with the second substrate (202), and correspondingly, an elastic buffer layer (109) is arranged at the joint of the machine body (100) and the second substrate (202);
the side plate (203) is fixed on the part of the second base plate (202) positioned outside the machine body (100), and the side plate (203) is provided with a plurality of coamings which are wound on the second base plate (202);
the upper end of the second guide cylinder (204) is fixedly connected with the discharge end, the lower end of the second guide cylinder (204) extends downwards and is connected with the first guide cylinder (323), and the discharge cylinder is formed by the first guide cylinder (323) and the second guide cylinder (204).
7. The pharmaceutical intermediate raw material particle screening apparatus according to claim 6, wherein the screen plate (201) comprises an upper plate (205) and a lower plate (206) which are sequentially arranged from top to bottom, the upper plate (205) is fixed on the second base plate (202), and two ends of the lower plate (206) are respectively provided with an adjusting mechanism (500) so that the screen holes of the upper plate (205) and the screen holes of the lower plate (206) are staggered with each other;
the adjusting mechanism (500) comprises an adjusting hole (501), an adjusting screw (502) and an adjusting wedge block (503), wherein the adjusting hole (501) is positioned on the sieve plate (201) and is adjacent to the end part of the lower plate (206), the adjusting screw (502) is arranged on the adjusting hole (501) in a penetrating mode, the adjusting wedge block (503) is fixed on the adjusting screw (502), the adjusting wedge block (503) is provided with an adjusting inclined surface which abuts against the end part of the lower plate (206), and when the adjusting screw (502) is screwed, the adjusting wedge block (503) moves up and down along the adjusting screw (502) to drive the lower plate (206) to slide.
8. A pharmaceutical intermediate raw material particle screening device according to claim 1, characterized in that the dust suction means (400) comprises a blower (401) and an exhaust fan (402) arranged opposite each other, and in that the screening channel (102) comprises an inclined section (110), and in that the exhaust fan (402) is fixed outside the inclined section (110).
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| CN202311484435.3A CN117206169B (en) | 2023-11-09 | 2023-11-09 | Medical intermediate raw material particle screening device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202311484435.3A CN117206169B (en) | 2023-11-09 | 2023-11-09 | Medical intermediate raw material particle screening device |
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| CN117206169B true CN117206169B (en) | 2024-01-19 |
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