CN112742106A

CN112742106A - DMDO crystal decolouring drying device

Info

Publication number: CN112742106A
Application number: CN202110196397.6A
Authority: CN
Inventors: 韩会娟; 朱雨润; 姚路; 常峥峥; 王慧敏
Original assignee: Henan Institute of Science and Technology
Current assignee: Henan Institute of Science and Technology
Priority date: 2021-02-22
Filing date: 2021-02-22
Publication date: 2021-05-04
Anticipated expiration: 2041-02-22
Also published as: CN112742106B

Abstract

The invention particularly relates to a DMDO crystal decoloring and drying device which comprises a box body and a glassware, wherein a controller is arranged on the box body, a crystallization area and a drying area are separated in the box body, a decoloring mechanism is arranged on the left side of the top of the box body, a suction filtration mechanism is arranged on the right side of the upper part of the box body, a cooling mechanism is arranged in the crystallization area, and a drying mechanism is arranged in the drying area; the invention can realize the decoloring and drying of the DMDO crystal containing impurities, and the detachable stirring barrel is arranged to clean the DMDO crystal after the DMDO crystal is conveniently used; the working mode that the stirring fan blades and the stirring barrel rotate simultaneously is adopted, so that the DMDO crystals and the petroleum ether can be quickly mixed and stirred; liquid in the glass ware can be rapidly cooled by a cold air and water cooling double cooling mode, so that DMDO crystals can be rapidly separated out.

Description

DMDO crystal decolouring drying device

Technical Field

The invention belongs to the technical field of chemical equipment, and particularly relates to a DMDO crystal decoloring and drying device.

Background

Antibiotics are the main drugs used by people for treating infectious diseases. However, with the continuous use of antibiotics, the drug resistance of some germs is gradually increased. Therefore, there is a need to modify antibiotics to obtain more potent drug species. Since the twentieth century, the pharmaceutical industry has rapidly developed globally, and China is the world's largest antibiotic drug producing country. However, some drugs produced in China are still old varieties, and the increase rate of the productivity and the yield is slow. DMDO-Cl is used as an important intermediate for drug synthesis, and the preparation and the application of the DMDO-Cl have important significance for the synthesis, the development and the research of new drugs.

An antibiotic esterified compound having a (5-methyl-2-keto-1, 3-dioxolyl-4-) methyl group can be synthesized using 4-halomethyl-5-methyl-1, 3-dioxolen-2-one (DMDO-X, X = Cl, Br, I) as an esterifying agent. The medicine can change active raw medicine into inactive derivative, and release raw medicine in vivo to play a role. As a protective group, the compound is often used as a medical intermediate and is used for the development of various medicaments. Such as antihypertensive drugs (olmesartan medoxomil, azilsartan medoxomil potassium salt), antibiotic drugs (ampicillin hydrochloride), fluoroquinolone antibacterial drugs (prulifloxacin), and antitumor drugs (stilbene derivatives). 4-halomethyl-5-methyl-1, 3-dioxol-2-one may be prepared using 4, 5-dimethyl-1, 3-dioxacyclopenta-2-one (DMDO). The compound has an allyl structure, and can be used for preparing DMDO-X through halogenation.

In the process of preparing the DMDO crystal, the DMDO crystal needs to be decolored and dried, and at present, when the DMDO crystal containing impurities is treated, the DMDO crystal needs to be dissolved firstly, the impurities in the DMDO crystal are filtered, and then the DMDO crystal is crystallized and dried; most of the existing dissolving modes are that after petroleum ether is added into DMDO, manual stirring treatment is carried out, or high-temperature petroleum ether is added, the dissolving effect is not obvious, and the efficiency is low. Natural cooling or air cooling is mostly adopted for cooling crystallization treatment, and the air cooling directly blows against the dissolution to bring a large amount of dust into the solution, thereby causing solution pollution; need filter it after the crystallization, conventional suction filtration structure adopts a suction filter to take out liquid mostly, and need change the container from crystallization to suction filtration technology, and is very troublesome.

In order to solve the problems, a DMDO crystal decoloring and drying device capable of quickly dissolving, filtering, crystallizing, filtering and drying DMDO crystals containing impurities is provided.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provide a DMDO crystal decoloring and drying device.

The purpose of the invention is realized as follows: the DMDO crystal decoloring and drying device comprises a box body and a glassware, wherein a controller is arranged on the box body, a crystallization area and a drying area are separated in the box body, a decoloring mechanism is arranged on the left side of the top of the box body, a suction filtering mechanism is arranged on the right side of the upper portion of the box body, a cooling mechanism is arranged in the crystallization area, and a drying mechanism is arranged in the drying area.

Further, the decoloring mechanism comprises a stirring barrel, a transmission ring, an outer stirring motor, an inner stirring motor, an outer driving gear, an inner driving gear, an outer driven gear, an inner driven gear, a stirring rod, stirring fan blades, a heating rod, a sealing ring, a first bearing, a second bearing, a third bearing, a valve, a filter, a discharge pipe, a top cover, an inner connecting rod, an electric cylinder and a connecting plate, wherein the electric cylinder is fixed on the upper surface of the box body, the output end of the electric cylinder is rotationally connected with the connecting plate, the front end of the connecting plate is fixedly connected with the top cover, the middle part of the top cover is rotatably provided with the stirring rod through the first bearing, the outer side surface of the stirring rod is uniformly provided with a plurality of stirring fan blades, the inner connecting rod rotatably penetrates through the stirring rod, the upper end and the lower end of the inner connecting rod are rotatably connected through the, an inner driven gear is arranged on the outer side face of the upper part of the stirring rod, an inner stirring motor is fixedly arranged in the top cover, an inner driving gear is fixedly connected to the output end of the inner stirring motor, and the inner driving gear and the inner driven gear are in meshing transmission;

the lower end of the stirring barrel is fixedly connected with a discharge pipe, a valve is arranged on the discharge pipe, the lower end of the discharge pipe is detachably connected with a filter, the upper part of the filter is of a cylindrical tubular structure, the lower part of the filter is of a conical structure, the outer side surface of the filter is uniformly provided with filter holes, and the inner side surface of the filter is covered with a layer of filter membrane;

the transmission ring is connected with box upper portion rotation through bearing three, transmission ring lower part lateral surface is provided with outer driven gear, outer agitator motor fixes on the box, outer agitator motor output is provided with outer driven gear, the intermeshing transmission between outer driven gear and the outer driven gear, can dismantle between agitator and the transmission ring and be connected, the agitator lateral surface evenly is provided with a plurality of bayonet locks, a plurality of draw-in grooves have been seted up to the transmission ring medial surface, be clearance fit between bayonet lock and the draw-in groove.

Further, cooling body including air-supply line, exhaust pipe, forced air cooling ring, basin, water pump, cooling tube, the cooling tube is located the crystallization zone lower part, cooling tube one end is connected with the water pump, the other end is located the basin top, forced air cooling ring inside surface middle part has been seted up the wind groove, divides the cold ring to fix in the cooling tube top, glassware can be placed in forced air cooling ring middle part, be clearance fit between forced air cooling ring and the glassware lateral surface.

Furthermore, the suction filtration mechanism comprises a threaded pipe, a knob, a fixing ring, a bearing IV, a hose, an air suction pipe, a vacuum pump, a suction filtration barrel, a sliding block and a suction filtration head, wherein the suction filtration head can separate liquid from precipitated DMDO crystals; screwed pipe and knob threaded connection, knob are notch cuttype circle tubular structure, and the knob lower extreme passes through bearing four and solid fixed ring and rotates to be connected, and solid fixed ring fixes at the box upper surface, and the screwed pipe can be gliding from top to bottom run through box upper portion, and four planes have evenly been seted up to the screwed pipe lateral surface, and threaded surface and plane interval distribution are provided with the slider between the plane of screwed pipe lateral surface and the box, and the slider is fixed on the box.

Furthermore, the drying mechanism comprises a heat vacuum pump and a heating pipe, wherein the heat vacuum pump is positioned on the rear side surface of the drying area, and the heating pipe is positioned at the bottom of the drying area.

When the stirring device is used, the stirring barrel is clamped in the transmission ring, namely the clamping pin on the side surface of the stirring barrel is clamped in the clamping groove on the transmission ring; placing the DMDO crystal containing impurities in a stirring barrel, adding proper petroleum ether and activated carbon, rotating a connecting plate by hand to rotate a top cover to be right above the stirring barrel, driving the top cover to move downwards by an electric cylinder, enabling a stirring rod to be positioned in the stirring barrel, heating the petroleum ether in the stirring barrel through the heating rod so that the DMDO crystal containing the impurities can be rapidly dissolved into the petroleum ether, driving the stirring rod to rotate through an inner stirring motor, stirring the petroleum ether and the DMDO crystal by a stirring fan blade, accelerating the dissolution of the DMDO crystal, and adsorbing the impurities in the dissolved DMDO crystal by the activated carbon.

The filter is arranged at the lower end of the discharge pipe, the valve is opened, liquid enters the filter, the filter filters the activated carbon adsorbed with impurities, filter holes are formed in the periphery of the filter to enlarge a filter surface, the liquid can be rapidly filtered, and the lower portion of the filter is arranged to be of a conical structure so that the liquid can flow out along the lower end of the filter; the filtered liquid flowed to the glassware below.

Cooling the glassware to separate out DMDO crystals, namely supplying water in a water tank to a cooling pipe through a water pump, wherein the cooling pipe is of a spiral annular structure, the lower surface of the glassware is in contact with the cooling pipe for heat conduction, and the cooling pipe takes away heat on the glassware; cold air is supplied to the air cooling ring through the air inlet pipe, enters the air exhaust pipe around the air groove, and contacts with the side surface of the glassware in the air groove to take away heat on the glassware; liquid in the glassware can be rapidly cooled in a cold air and water cooling double cooling mode, so that DMDO crystals can be rapidly separated out; the air cooling adopts a mode of cooling the side wall of the glassware to cool so as to avoid the contact of liquid and cold air, which causes the pollution caused by the dust in the air entering the liquid and the impurities still contained in the separated crystal.

After the DMDO crystals are separated out, moving the glassware to a drying area for suction filtration and drying, placing the glassware above a heating pipe, and driving a threaded pipe to move downwards by rotating a knob until a suction filtration head contacts the bottom of the glassware; and opening the vacuum pump, and pumping the liquid in the glass ware into the suction filtration barrel through the suction filtration head to realize the separation of the crystal and the liquid until the liquid suction filtration is completed.

After the suction filtration is completed, the rotary knob is rotated to lift the suction filtration head, the glassware is heated through the heating pipe below, hot air is blown to the drying area through the air heater, and the heating and drying of the precipitated crystals are realized.

Has the advantages that: the device can realize the decoloring and drying of the DMDO crystal containing impurities, and the detachable stirring barrel is arranged to clean the DMDO crystal after the DMDO crystal is conveniently used; the liftable and rotatable stirring fan blades can avoid the influence on the next operation of staff caused by the fact that the stirring fan blades are held by hands of the staff, and meanwhile, the problem that the stirring fan blades are not placed at any place when not working is solved; the working mode that the stirring fan blades and the stirring barrel rotate simultaneously is adopted, so that the DMDO crystals and the petroleum ether can be quickly mixed and stirred; the filter with the upper part of the cylindrical tubular structure and the lower part of the conical structure is arranged, so that the contact surface between liquid and the filter can be increased, the rapid filtration is realized, the liquid flows down along the bottom of the filter, and the liquid is prevented from splashing everywhere. Liquid in the glassware can be rapidly cooled in a cold air and water cooling double cooling mode, so that DMDO crystals can be rapidly separated out; the air cooling adopts a mode of cooling the side wall of the glassware to cool so as to avoid the contact of liquid and cold air, which causes the pollution caused by the dust in the air entering the liquid and the impurities still contained in the separated crystal. The suction filtration head provided with the liftable changes traditional suction filtration mode, avoids changing the container many times, influences production efficiency.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is a schematic structural diagram of the cooling mechanism of the invention.

Fig. 3 is a schematic structural diagram of a part of the cooling mechanism and a part of the drying mechanism of the invention.

FIG. 4 is a schematic structural diagram of the decoloring mechanism of the present invention.

Fig. 5 is a schematic view of the development structure of the decoloring mechanism of the present invention.

FIG. 6 is a partial structural schematic view of the decoloring mechanism of the present invention.

FIG. 7 is a partial sectional view of the decoloring mechanism according to the present invention.

Fig. 8 is a partial structural sectional view of the inventive stirring rod.

Fig. 9 is a schematic structural diagram of the suction filtration mechanism of the invention.

Fig. 10 is a partial sectional view of the suction filtration mechanism of the invention.

Fig. 11 is a schematic view of a partial structure of the suction filtration mechanism of the invention.

Description of reference numerals:

1. the device comprises a box body, a drying zone, a crystallization zone, a wind cooling ring, a glassware, a threaded pipe, a knob, a hose, a suction filter barrel, a suction pipe, an air suction pipe, an external stirring motor, a top cover, a stirring barrel, a bearing III, a controller, a valve, an air inlet pipe, a water tank, a wind tank, an exhaust pipe, a filter, a discharge pipe, a heating pipe, a water pump, a cooling pipe, a driving gear 26, an external driving gear 27, an external driven gear 28, a driving ring, a clamping groove 29, a clamping groove 30, a heating rod, a stirring fan blade 31, a stirring rod 32, a clamping pin 33, an electric cylinder 34, a connecting plate 35, a connecting plate 36, an internal driving gear, an internal stirring motor 37, an internal driven gear 38, a bearing I, a bearing II, a connecting rod 41, a sliding block 42, a sealing ring 43, a sealing ring and a glass ware, 44. a fixed ring, 45, a vacuum pump, 46, a bearing IV, 47 and a filter head.

Detailed Description

Embodiment 1, as shown in fig. 1 to 11, a DMDO crystal decoloring and drying apparatus includes a box 1 and a glassware 5, the box 1 is provided with a controller 15, the controller 15 is preferably an FX2N-64MT-001 controller 15, the controller 15 is used to control an electric cylinder 34, an internal stirring motor 37, an external stirring motor 11, a water pump 24, a vacuum pump 45, a heating rod 30 and a heating pipe 23, the box 1 is partitioned into a crystallization area 3 and a drying area 2, the box 1 on the front side of the crystallization area 3 and the drying area 2 is provided with a switchable transparent door, the crystallization area 3 and the drying area 2 are in a sealed state when the transparent door is closed, and the left side of the top of the box 1 is provided with a decoloring mechanism.

The decoloring mechanism dissolves DMDO crystals containing impurities and filters the impurities; the decoloring mechanism comprises a stirring barrel 13, a transmission ring 28, an outer stirring motor 11, an inner stirring motor 37, an outer driving gear 26, an inner driving gear 36, an outer driven gear 27, an inner driven gear 38, a stirring rod 32, stirring fan blades 31, a heating rod 30, a sealing ring 43, a first bearing 39, a second bearing 40, a third bearing 14, a valve 16, a filter 21, a discharge pipe 22, a top cover 12, an inner connecting rod 41, an electric cylinder 34 and a connecting plate 35, wherein the outer stirring motor 11 and the inner stirring motor 37 are preferably selected from a Delphak D180M-O250030C-E direct-current servo motor, the electric cylinder 34 is preferably an Aiton 80 series servo electric cylinder 34, the electric cylinder 34 is fixed on the upper surface of the box body 1, the output end of the electric cylinder 34 is rotatably connected with the connecting plate 35, the top cover 12 is fixedly connected with the front end of the connecting plate 35, the top cover 12 is in clearance fit with the stirring barrel 13. The middle part of the top cover 12 is rotatably provided with a stirring rod 32 through a bearing I39, the outer side surface of the stirring rod 32 is uniformly provided with a plurality of stirring blades 31, an inner connecting rod 41 rotatably penetrates through the stirring rod 32, the upper end and the lower end between the inner connecting rod 41 and the stirring rod 32 are rotatably connected through a bearing II 40, a sealing ring 43 is arranged between the inner connecting rod 41 and the lower end of the stirring rod 32, the lower end of the inner connecting rod 41 is provided with a heating rod 30, the heating rod 30 can heat liquid in the stirring barrel 13, and power can be supplied to the heating rod 30 through the inner connecting; an inner driven gear 38 is arranged on the outer side face of the upper portion of the stirring rod 32, an inner stirring motor 37 is fixedly arranged in the top cover 12, an inner driving gear 36 is fixedly connected to the output end of the inner stirring motor 37, and the inner driving gear 36 and the inner driven gear 38 are in meshed transmission.

The lower end of the stirring barrel 13 is fixedly connected with a discharge pipe 22, the valve 16 is arranged on the discharge pipe 22, the lower end of the discharge pipe 22 is detachably connected with a filter 21, the upper part of the filter 21 is of a cylindrical tubular structure, so that the contact surface of liquid and a filter membrane can be increased, and rapid filtration is realized; the lower part of the filter 21 is of a conical structure, liquid can flow down along the lower part of the filter 21 through the conical structure, the liquid is prevented from splashing, filter holes are uniformly formed in the outer side surface of the filter 21, and a layer of filter membrane is covered on the inner side surface of the filter 21 and used for filtering impurities and active carbon.

The transmission ring 28 is rotatably connected with the upper part of the box body 1 through a bearing III 14, an outer driven gear 27 is arranged on the outer side face of the lower part of the transmission ring 28, the outer stirring motor 11 is fixed on the box body 1, an outer driving gear 26 is arranged at the output end of the outer stirring motor 11, the outer driving gear 26 and the outer driven gear 27 are in meshed transmission, and the stirring barrel 13 is detachably connected with the transmission ring 28; a plurality of bayonet locks 33 are evenly arranged on the outer side face of the stirring barrel 13, a plurality of clamping grooves 29 are formed in the inner side face of the transmission ring 28, and the bayonet locks 33 and the clamping grooves 29 are in clearance fit and are cleaned after the detachable stirring barrel 13 is convenient to use.

The right side of the upper part of the box body 1 is provided with a suction filtration mechanism, the suction filtration mechanism is mainly used for pumping out crystallized liquid, the suction filtration mechanism comprises a threaded pipe 6, a knob 7, a fixing ring 44, a bearing four 46, a hose 8, an air suction pipe 10, a vacuum pump 45, a suction filtration barrel 9, a sliding block 42 and a suction filtration head 47, the suction filtration head 47 is fixed at the lower end of the threaded pipe 6, the upper end of the threaded pipe 6 is connected with the hose 8, the suction filtration barrel 9 is a sealing structure, the hose 8 is connected with the top end of the suction filtration barrel 9, and the suction filtration barrel 9 is connected; screwed pipe 6 and knob 7 threaded connection, knob 7 is notch cuttype circle tubular structure, knob 7 lower extreme passes through four 46 of bearing and solid fixed ring 44 and rotates and be connected, gu fixed ring 44 fixes at the box 1 upper surface, screwed pipe 6 gliding top and bottom runs through box 1 upper portion, four planes have evenly been seted up to screwed pipe 6 lateral surface, flank and plane interval distribution, be provided with slider 42 between the plane of screwed pipe 6 lateral surface and the box 1, slider 42 fixes on box 1, screwed pipe 6 can not rotate when shifting on screwed pipe 6 can be realized.

A cooling mechanism is arranged in the crystallization zone 3, the cooling mechanism is mainly used for separating out DMDO after impurities are removed, the cooling mechanism comprises an air inlet pipe 17, an air exhaust pipe 20, an air cooling ring 4, a water tank 18, a water pump 24 and a cooling pipe 25, the cooling pipe 25 is positioned at the lower part of the crystallization zone 3, one end of the cooling pipe 25 is connected with the water pump 24, the other end of the cooling pipe is positioned above the water tank 18, and the air inlet pipe 17 and the air exhaust pipe 20 are respectively arranged at two sides of the air cooling ring 4; the supply of the cold air to the air inlet duct 17 is not limited by the structure as long as the supply of the air to the air inlet duct 17 can be achieved. Exhaust pipe 20 is outside exhaust gas, and wind groove 19 has been seted up at 4 medial surface middle parts of forced air cooling ring, divides the cold ring to fix in cooling tube 25 top, and glassware 5 can be placed at 4 middle parts of forced air cooling ring, is clearance fit between 5 lateral surfaces of forced air cooling ring 4 and glassware for glassware 5 can be followed and air-cooled ring 4 is taken out and is avoided the gas in wind groove 19 to spill over in a large number.

A drying mechanism is arranged in the drying area 2; the DMDO crystal is dried, the drying mechanism comprises an air heater and a heating pipe 23, the air heater is located on the rear side face of the drying area 2 and supplies heat to the drying area 2, and the heating pipe 23 is located at the bottom of the drying area 2 and heats the glassware 5.

When the stirring device is used, the stirring barrel 13 is clamped in the transmission ring 28, namely the clamping pin 33 on the side surface of the stirring barrel 13 is clamped in the clamping groove 29 on the transmission ring 28; placing DMDO crystals containing impurities in a stirring barrel 13, adding proper petroleum ether and activated carbon, rotating a connecting plate 35 by hand to rotate a top cover 12 to be right above the stirring barrel 13, driving the top cover 12 to move downwards by an electric cylinder 34 to enable a stirring rod 32 to be positioned in the stirring barrel 13, heating the petroleum ether in the stirring barrel 13 by a heating rod 30 so that the DMDO crystals containing the impurities can be rapidly dissolved into the petroleum ether, driving the stirring rod 32 to rotate by an internal stirring motor 37, stirring the petroleum ether and the DMDO crystals by a stirring fan blade 31 to accelerate the dissolution of the DMDO crystals, and adsorbing the impurities in the dissolved DMDO crystals by the activated carbon. In addition, the stirring barrel 13 is driven to rotate by the outer stirring motor 11, so that petroleum ether and the DMDO crystals can be stirred more sufficiently, and the dissolving of the DMDO crystals is accelerated.

The filter 21 is arranged at the lower end of the discharge pipe 22, the valve 16 is opened, liquid enters the filter 21, the filter 21 filters out active carbon adsorbed with impurities, filter holes are formed in the periphery of the filter 21 to enlarge the filter surface, the liquid can be rapidly filtered, and the lower portion of the filter 21 is provided with a conical structure to enable the liquid to flow out along the lower end of the filter 21; the filtered liquid flows to the glass vessel 5 below.

Cooling the glassware 5 to separate out DMDO crystals, namely supplying water in the water tank 18 to a cooling pipe 25 through a water pump 24, wherein the cooling pipe 25 is of a spiral annular structure, the lower surface of the glassware 5 is in contact with the cooling pipe 25 to conduct heat, and the cooling pipe 25 takes away heat on the glassware 5; cold air is supplied to the air cooling ring 4 through the air inlet pipe 17, enters the air outlet pipe 20 around the air groove 19, and contacts with the side surface of the glass vessel 5 in the air groove 19 to take away heat on the glass vessel 5; the liquid in the glass vessel 5 can be rapidly cooled in a cold air and water cooling double cooling mode, so that DMDO crystals can be rapidly separated out; the air cooling adopts the mode of cooling the side wall of the glass vessel 5 to prevent liquid from contacting with cold air, so that dust in the air enters the liquid to cause pollution, and the precipitated crystal still contains impurities.

After the DMDO crystals are separated out, the glassware 5 is moved to a drying area 2 for suction filtration and drying, the glassware 5 is placed above a heating pipe 23, and a threaded pipe 6 is driven to move downwards by rotating a knob 7 until a suction filtration head 47 contacts the bottom of the glassware 5; and (4) opening the vacuum pump 45, and pumping the liquid in the glass vessel 5 into the suction filtration barrel 9 through the suction filtration head 47 to realize the separation of the crystal and the liquid until the liquid is completely filtered.

After the suction filtration is finished, the rotary knob 7 is rotated to lift the suction filtration head 47, the glassware 5 is heated through the heating pipe 23 below, and hot air is blown to the drying area 2 through the air heater, so that the precipitated crystals are heated and dried.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the present invention, and it will be understood by those skilled in the art that various changes and modifications may be made therein without departing from the spirit and scope of the invention.

Claims

DMDO crystal body decoloration drying device, including box, glassware, be provided with the controller on the box, separate crystallization zone, dry zone in the box, its characterized in that: the left side of the top of the box body is provided with a decoloring mechanism, the right side of the upper part of the box body is provided with a suction filtration mechanism, a cooling mechanism is arranged in a crystallization area, and a drying mechanism is arranged in a drying area.
2. The device for decoloring and drying DMDO crystals according to claim 1, wherein: decolorizing mechanism including the agitator, agitator detachable is located the box, the agitator can rotate for the box, is provided with rotatable stirring vane in the agitator, the agitator below is provided with the filter.
3. The device for decoloring and drying DMDO crystals according to claim 1, wherein: cooling body including air-supply line, exhaust pipe, forced air cooling ring, basin, water pump, cooling tube, the cooling tube is located the crystallization zone lower part, cooling tube one end is connected with the water pump, the other end is located the basin top, forced air cooling intra-annular side middle part has seted up the wind groove, divide the cold ring to fix in the cooling tube top, glassware can be placed in forced air cooling ring middle part, be clearance fit between forced air cooling ring and the glassware lateral surface, forced air cooling ring both sides are provided with an air-supply line and exhaust pipe respectively.
4. The device for decoloring and drying DMDO crystals according to claim 1, wherein: the suction filtration mechanism comprises a threaded pipe, a knob, a fixing ring, a bearing IV, a hose, an air suction pipe, a vacuum pump, a suction filtration barrel, a sliding block and a suction filtration head, wherein the suction filtration head is fixed at the lower end of the threaded pipe, the upper end of the threaded pipe is connected with the hose, the suction filtration barrel is a sealing structure, the hose is connected with the top end of the suction filtration barrel, and the suction filtration barrel is connected with the vacuum pump through the air suction pipe; screwed pipe and knob threaded connection, knob are notch cuttype circle tubular structure, and the knob lower extreme passes through bearing four and solid fixed ring and rotates to be connected, and solid fixed ring fixes at the box upper surface, and the screwed pipe can be gliding from top to bottom run through box upper portion, and four planes have evenly been seted up to the screwed pipe lateral surface, and threaded surface and plane interval distribution are provided with the slider between the plane of screwed pipe lateral surface and the box, and the slider is fixed on the box.
5. The device for decoloring and drying DMDO crystals according to claim 1, wherein: the drying mechanism comprises an air heater and a heating pipe, the heat vacuum pump is positioned on the rear side face of the drying area, and the heating pipe is positioned at the bottom of the drying area.