Clean drying box for medical intermediates

Abstract

The utility model provides a medical intermediate cleaning drying box. The medical intermediate cleaning drying box comprises a drying box, a drying mechanism, an exhaust mechanism and a tray rack arranged in a box body, the drying mechanism comprises an air outlet plate arranged in the box body and a hot air supply device for providing hot air; the interior of the air outlet plate is hollow, and a plurality of air outlet holes are formed in the air outlet plate; the exhaust mechanism comprises an exhaust pipe, a filter bin, a filter and an air pump; the filter bin comprises a shell, a filter screen plate dividing an inner cavity of the shell into an air inlet area and an air outlet area, a net brush making contact with the side, facing the air inlet area, of the filter screen plate, a driving unit controlling the net brush to scrape and sweep the filter screen plate, and a dust collecting box arranged below the air inlet area. One end of the exhaust pipe is connected with the inner cavity of the box body; the air inlet end of the filter is connected with the air outlet area, and the air outlet end is connected with the sucking pump. According to the medical intermediate clean drying box, waste gas containing polluting dust generated in the drying process can be treated, clean production is achieved, and occupational health risks are reduced.

Description

Technical Field

[0001] The utility model belongs to the field of pharmaceutical intermediate production equipment, in particular to a pharmaceutical intermediate cleaning drying box. Background Art

[0002] In the process of pharmaceutical synthesis, drying equipment is usually used to dry the synthesized intermediate compounds. Existing drying equipment is generally an oven, which dries the materials by introducing hot air. During the drying process, moist gas with dust will diffuse from the materials. If these dusty exhaust gases are directly discharged into the external environment without treatment, they will cause certain pollution and affect the health of production personnel, posing a greater occupational health risk. Utility Model Content

[0003] In view of this, in order to solve the above problems, the utility model proposes a pharmaceutical intermediate clean drying oven with a reasonable structural design, which can treat the waste gas containing polluting dust generated during the drying process, so as to achieve clean production and reduce occupational health risks.

[0004] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0005] A pharmaceutical intermediate cleaning drying oven, comprising:

[0006] An oven, the oven comprising a box body and an openable and closable box cover arranged on the front side of the box body;

[0007] A drying mechanism, the drying mechanism comprising an air outlet plate arranged in the inner cavity of the box body and a hot air supply device for providing hot air to the air outlet plate; the air outlet plate is hollow inside and has a plurality of air outlet holes;

[0008] An exhaust mechanism, the exhaust mechanism comprising an exhaust pipe, a filter chamber, a filter, and an air pump; the filter chamber comprises a shell, a filter screen that divides the inner cavity of the shell into an air inlet area and an air outlet area, a screen brush that contacts the side of the filter screen facing the air inlet area, a drive unit that controls the screen brush to scrape the filter screen, and a dust box disposed below the air inlet area; one end of the exhaust pipe is connected to the inner cavity of the box, and the other end is connected to the air inlet area; the air inlet end of the filter is connected to the air outlet area, and the air outlet end is connected to the air pump;

[0009] A tray rack is arranged in the box body.

[0010] The hot air provided by the hot air supply device is evenly diffused into the inner cavity of the box through the air outlet plate, and the pharmaceutical intermediates to be dried in the drying trays on each layer of the tray rack are dried; the waste gas containing dust enters the filter bin through the exhaust pipe, and the dust is trapped under the action of the filter screen, and the gas passes through the filter screen into the air outlet area, and enters the filter along the pipeline for further purification, and the purified gas is discharged through the outlet end of the vacuum pump, and finally the waste gas containing polluted dust generated in the drying process is cleaned; when there is too much dust attached to the filter screen and the filtering effect is affected, the drive unit is started to drive the mesh brush to scrape the filter screen, and the attached dust is swept into the dust collecting box, so as to clean the filter screen, which is easy to operate and can effectively extend the service life of the filter screen, reduce the replacement frequency, reduce the workload and reduce the use cost.

[0011] Furthermore, the hot air supply device includes a blower, a dust collector, and a heater which are arranged in sequence through a pipeline; the blower is fixed to the outer wall of the box body, and the outlet end of the heater is connected to the inner cavity of the air outlet plate through an air inlet pipe.

[0012] The air is sent into the dust collector by the blower for dust removal, and then heated by the heater to form hot air, which is sent into the air outlet plate, and then flows evenly into the inner cavity of the box through the air outlet holes on the air outlet plate.

[0013] Furthermore, the air outlet plate is arranged at the lower end of the inner wall of the box body, and the hot air spreads from bottom to top.

[0014] Furthermore, the shell is arranged on the outer wall of the box body; the filter screen is arranged vertically; a dust exhaust port is provided at the bottom of the air inlet area, and the dust collecting box is detachably arranged corresponding to the dust exhaust port; an exhaust port is provided at the bottom of the air outlet area, and the air inlet end of the filter is connected to the exhaust port through a pipe.

[0015] Furthermore, the driving unit is arranged on the outer top of the shell; the driving unit includes a driving motor, a vertically arranged screw connected to the output end of the driving motor, a connecting rod with one end connected to the screw nut on the screw, and a lifting rod with an upper end connected to the other end of the connecting rod, and the lower end of the lifting rod extends into the inner cavity of the shell and is connected to the mesh brush.

[0016] When there is too much dust attached to the filter plate, the drive motor starts, the lead screw rotates, and the lead screw nut on it moves along the lead screw, thereby driving the connecting rod and the lifting rod to move in the vertical direction, and finally the mesh brush scrapes up and down on the filter plate, thereby cleaning the dust on the filter plate and the dust falls into the dust collecting box.

[0017] Furthermore, a plug-in slide is provided on the outer side of the bottom plate of the shell at a position corresponding to the dust exhaust port; a top edge of the dust box is provided with a detachable edge plugged into the plug-in slide, and a sealing gasket is provided on the edge to prevent gas from overflowing.

[0018] The dust box and the shell are detachable, and the dust box can be removed regularly to collect the dust inside.

[0019] Furthermore, the filter is an activated carbon filter; and the vacuum pump is fixed on the outer side wall of the box.

[0020] Furthermore, the air outlet plate is arranged at the lower end of the inner wall on the right side of the box body, and the air inlet end of the exhaust pipe is arranged on the left side of the top or the left side of the side wall of the box body, forming a diagonal structure to extend the flow path of the hot air in the box body.

[0021] Furthermore, the tray rack is a multi-layer frame structure, and a drying tray can be placed on each layer; the bottom of the tray rack is provided with anti-slip rollers, and the bottom of the inner cavity of the box is provided with tracks along the front-to-back direction that match the rollers.

[0022] Furthermore, the supporting layer of each layer of the pallet rack is a mesh structure, and a back plate is provided on the rear side of each layer.

[0023] Compared with the prior art, the pharmaceutical intermediate cleaning drying oven described in the utility model has the following advantages:

[0024] (1) The pharmaceutical intermediate clean drying oven described in the utility model has a reasonable structural design, and is provided with a drying mechanism for supplying hot air into the box body and an exhaust mechanism for treating waste gas containing polluted dust generated during the drying process. The waste gas containing dust enters the filter bin through the exhaust pipe, and the dust is trapped under the action of the filter screen. The gas passes through the filter screen and enters the gas outlet area, and enters the filter along the pipeline for further purification, and finally the purified gas is discharged through the vacuum pump, thereby achieving the cleanliness of the drying process and reducing occupational health risks;

[0025] (2) When there is too much dust attached to the filter screen of the pharmaceutical intermediate cleaning drying box described in the utility model, the dust attached to the filter screen can be scraped by a mesh brush and cleaned into the dust box, thereby cleaning the filter screen. The operation is convenient and can effectively extend the service life of the filter screen, reduce the replacement frequency, reduce the workload and reduce the cost of use. The dust box is connected to the shell by plugging, which is convenient for disassembly and assembly. The dust box can be cleaned regularly and the collected dust can be recovered. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0027] Figure 1 This is a schematic diagram of the structure of the pharmaceutical intermediate cleaning drying oven according to an embodiment of the utility model;

[0028] Figure 2 This is a schematic diagram of the internal structure of the pharmaceutical intermediate cleaning drying oven according to an embodiment of the utility model;

[0029] Figure 3 It is a schematic structural diagram of the exhaust mechanism described in an embodiment of the utility model.

[0030] Description of reference numerals:

[0031] 1-box body, 2-box cover, 3-air outlet plate, 4-blower, 5-dust collector, 6-heater, 7-air inlet pipe, 8-exhaust pipe, 9-filter bin, 10-filter, 11-vacuum pump, 12-shell, 13-air inlet area, 14-air outlet area, 15-filter screen, 16-screen brush, 17-drive unit, 18-dust box, 19-dust outlet, 20-exhaust outlet, 21-plug-in slide, 22-edge, 23-drive motor, 24-screw, 25-connecting rod, 26-lifting rod, 27-tray rack, 28-support layer, 29-back plate. DETAILED DESCRIPTION

[0032] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0035] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0036] like Figures 1 to 3 As shown, a pharmaceutical intermediate cleaning drying oven includes an oven, a drying mechanism, an exhaust mechanism, and a tray rack 27;

[0037] The oven comprises a box body 1 and a box cover 2 which is openable and closable and is arranged at the front side of the box body 1; the box body 1 and the box cover 2 are provided with sealing strips for sealing when closed;

[0038] The drying mechanism includes an air outlet plate 3 arranged at the lower end of the inner side wall on the right side of the box body 1 and a hot air supply device for providing hot air to the air outlet plate 3; the air outlet plate 3 is hollow inside and has a plurality of air outlet holes thereon; the hot air supply device includes a blower 4, a dust collector 5, and a heater 6 which are sequentially arranged through a pipeline; the blower 4 is fixed on the outer wall on the right side of the box body 1, and the outlet end of the heater 6 is connected to the inner cavity of the air outlet plate 3 through an air inlet pipe 7;

[0039] The exhaust mechanism includes an exhaust pipe 8, a filter bin 9, a filter 10, and an air pump 11; the filter bin 9 includes a shell 12, a filter screen 15 that divides the inner cavity of the shell 12 into an air inlet area 13 and an air outlet area 14, a mesh brush 16 that contacts the side of the filter screen 15 facing the air inlet area 13, a drive unit 17 that controls the mesh brush 16 to scrape the filter screen 15, and a dust box 18 arranged below the air inlet area 13; the shell 12 is arranged on the left outer side wall of the box body 1, a dust outlet 19 is arranged at the bottom of the air inlet area 13, an exhaust port 20 is arranged at the bottom of the air outlet area 14, a plug-in slide 21 is arranged at a position corresponding to the dust outlet 19 on the outer side of the bottom plate of the shell 12, a top edge of the dust box 18 is provided with a detachable edge 22 that is plugged into the plug-in slide 21, and a sealing gasket is arranged on the edge 22. The dust box 16 can The corresponding part for disassembly is arranged at the dust outlet 19; the filter screen plate 15 is arranged vertically; the drive unit 17 is arranged at the outer top of the shell 12, and the drive unit 17 includes a drive motor 23, a vertically arranged lead screw 24 connected to the output end of the drive motor 23, a connecting rod 25 with one end connected to the lead screw nut on the lead screw 24, and a lifting rod 26 connected to the other end of the connecting rod 25 at the upper end, and the lower end of the lifting rod 26 extends into the inner cavity of the shell 12 and is connected to the net brush 16; the air inlet end of the exhaust pipe 8 is arranged on the top left side of the box body 1, connected to the inner cavity of the box body 1, and the other end of the exhaust pipe 8 is connected to the air inlet area 13; the filter 10 is an activated carbon filter, the air inlet end of the filter 10 is connected to the exhaust port 20 through a pipeline, and the air outlet end is connected to the air pump 11; the air pump 11 is fixed to the right outer side wall of the box body 1;

[0040] The tray rack 27 is arranged in the box body 1; the tray rack 27 is a multi-layer frame structure, and a drying tray can be placed on each layer; the supporting layer 28 of each layer of the tray rack 27 is a mesh structure, and a back plate 29 is provided on the rear side of each layer; the bottom of the tray rack 27 is provided with an anti-slip roller, and the bottom of the inner cavity of the box body 1 is provided with a track along the front-to-back direction matching the roller.

[0041] The working process of the pharmaceutical intermediate cleaning drying oven described in the utility model is as follows:

[0042] The pharmaceutical intermediate to be dried is spread on the drying tray, and the drying tray is placed on each layer of the tray rack 27 in turn, and the box cover 2 is closed; the drying mechanism is started, and the air is sent to the dust collector 5 through the blower 4 for dust removal, and then heated by the heater 6 to form hot air, which is sent to the air outlet plate 3, and then flows evenly into the inner cavity of the box body 1 through the air outlet hole to dry the material; when exhausting, the exhaust mechanism is started, and the exhaust gas with dust enters the filter bin 9 through the exhaust pipe 8, and the dust is trapped under the action of the filter screen plate 15, and the gas passes through the filter screen plate 15. The air enters the air outlet area 14 and enters the filter 10 along the pipeline for further purification, and the purified gas is discharged through the outlet end of the vacuum pump 11; when there is too much dust attached to the filter plate 15, the drive motor 23 is started, the screw 24 rotates, and the screw nut thereon moves along the screw 24, driving the connecting rod 25 and the lifting rod 26 to move in the vertical direction, so that the mesh brush 16 scrapes up and down on the filter plate 15 to sweep the dust off, and the dust falls into the dust box 18, and the dust box 18 can be removed regularly to recover the dust inside.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A pharmaceutical intermediate cleaning drying oven, characterized in that: include: An oven, the oven comprising a box body and an openable and closable box cover arranged on the front side of the box body; A drying mechanism, the drying mechanism comprising an air outlet plate arranged in the inner cavity of the box body and a hot air supply device for providing hot air to the air outlet plate; the air outlet plate is hollow inside and has a plurality of air outlet holes; An exhaust mechanism, the exhaust mechanism comprising an exhaust pipe, a filter chamber, a filter, and an air pump; the filter chamber comprises a shell, a filter screen that divides the inner cavity of the shell into an air inlet area and an air outlet area, a screen brush that contacts the side of the filter screen facing the air inlet area, a drive unit that controls the screen brush to scrape the filter screen, and a dust box disposed below the air inlet area; one end of the exhaust pipe is connected to the inner cavity of the box, and the other end is connected to the air inlet area; the air inlet end of the filter is connected to the air outlet area, and the air outlet end is connected to the air pump; A tray rack is arranged in the box body.

2. The pharmaceutical intermediate cleaning drying oven according to claim 1, characterized in that: The hot air supply device includes a blower, a dust collector, and a heater which are sequentially arranged through a pipeline; the blower is fixed on the outer wall of the box body, and the outlet end of the heater is connected to the inner cavity of the air outlet plate through an air inlet pipe.

3. The pharmaceutical intermediate cleaning drying oven according to claim 1, characterized in that: The air outlet plate is arranged at the lower end of the inner side wall of the box body.

4. The pharmaceutical intermediate cleaning drying oven according to claim 1, characterized in that: The shell is arranged on the outer wall of the box body; the filter screen is arranged vertically; a dust exhaust port is arranged at the bottom of the air inlet area, and the dust collecting box is detachably arranged corresponding to the dust exhaust port; an exhaust port is arranged at the bottom of the air outlet area, and the air inlet end of the filter is connected to the exhaust port through a pipe.

5. The pharmaceutical intermediate cleaning drying oven according to claim 4, characterized in that: The driving unit is arranged at the outer top of the shell; the driving unit includes a driving motor, a vertically arranged screw connected to the output end of the driving motor, a connecting rod connected to the screw nut on the screw at one end, and a lifting rod connected to the other end of the connecting rod at the upper end, and the lower end of the lifting rod extends into the inner cavity of the shell and is connected to the net brush.

6. The pharmaceutical intermediate cleaning drying oven according to claim 4, characterized in that: A plug-in slide is provided at a position on the outer side of the shell bottom plate corresponding to the dust discharge port; a detachable edge plugged into the plug-in slide is provided on the top edge of the dust collecting box, and a sealing gasket is provided on the edge.

7. The pharmaceutical intermediate cleaning drying oven according to claim 1, characterized in that: The filter is an activated carbon filter; the vacuum pump is fixed on the outer side wall of the box.

8. The pharmaceutical intermediate cleaning drying oven according to claim 1, characterized in that: The air outlet plate is arranged at the lower end of the inner wall on the right side of the box body, and the air inlet end of the exhaust pipe is arranged at the left side of the top or the left side of the side wall of the box body.

9. The pharmaceutical intermediate cleaning drying oven according to claim 1, characterized in that: The tray rack is a multi-layer frame structure, and a drying tray can be placed on each layer; the bottom of the tray rack is provided with anti-skid rollers, and the bottom of the box inner cavity is provided with tracks along the front-back direction that match the rollers.

10. The pharmaceutical intermediate cleaning drying oven according to claim 9, characterized in that: The supporting layer of each layer of the pallet rack is a mesh structure, and a back plate is provided on the rear side of each layer.

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