CN115025648B - Production method for dissolving and purifying medical urea - Google Patents

Production method for dissolving and purifying medical urea Download PDF

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Publication number
CN115025648B
CN115025648B CN202210963412.XA CN202210963412A CN115025648B CN 115025648 B CN115025648 B CN 115025648B CN 202210963412 A CN202210963412 A CN 202210963412A CN 115025648 B CN115025648 B CN 115025648B
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unit
plate
dissolving
urea
reaction unit
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CN115025648A (en
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顾霖
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Shanghai Xudonghai Punantong Pharmaceutical Co ltd
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Shanghai Xudonghai Punantong Pharmaceutical Co ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F21/00—Dissolving
    • B01F21/10—Dissolving using driven stirrers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
    • B01D5/0015—Plates
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
    • B01D5/0096—Cleaning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms 
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/10—Maintenance of mixers
    • B01F35/12—Maintenance of mixers using mechanical means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/181—Preventing generation of dust or dirt; Sieves; Filters
    • B01F35/187—Preventing generation of dust or dirt; Sieves; Filters using filters in mixers, e.g. during venting

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention provides a production method for dissolving and purifying medical urea, which comprises the following steps: step one, a filter screen dissolving process: the medicinal ethanol and urea are fed through a feed opening in sequence; step two, opposite stirring process: the driving units arranged up and down of the reaction unit are started, and the directions of the upper driving unit and the lower driving unit are opposite; step three, lifting and cleaning; step four, recovering and condensing; step five, condensation cleaning procedure: so that the condensed water and scale accumulated in the condensing plate are squeezed and cleaned. Through the design to lifting clearance process, make the insoluble matter that the urea that removes the reaction unit to its upper end reaction and ethanol produced clear up to reduce the difficult clearance problem of jam that insoluble matter accumulated and produced, the rethread is retrieved and is retrieved the design of clearance process to condensation, makes impurity and comdenstion water in condensation plate and scraping plate and the cooperation of location scraper blade make steam by the timing clearance, thereby improved the overall purity that urea dissolves.

Description

Production method for dissolving and purifying medical urea
Technical Field
The invention relates to the technical field of medical urea production, in particular to a production method for dissolving and purifying medical urea.
Background
Urea is mainly colorless prismatic crystals or white crystalline powder; the smell is almost odorless, and the taste is salty and cool; after a long time, weak ammonia odor gradually occurs; the aqueous solution is neutral, urea is a chemical nitrogen product with a large usage amount, and is widely used in the medical or agricultural industry field.
Chinese patent CN202011127914.6 discloses a urea production process, comprising the following steps: removing sediment impurities from raw water through three-stage reverse osmosis, and then adding a COD remover to remove microorganisms and heavy metal substances to obtain ultrapure water for standby; adding urea particles into ultrapure water, heating to 40-60 ℃, and then preserving heat for 1-2 hours at 40-60 ℃ to obtain urea solution; regulating the pH value of the urea solution to 7.0-8.0 by using a pH regulator, standing for 20-30 min at normal temperature, and filtering to obtain urea particles; adding a stabilizing agent and auxiliary materials into the urea granules, uniformly mixing, granulating and drying to obtain the target urea. The invention adopts ultrapure water as solvent, and through a specific heating and heat preservation process, urea is converted into ammonium carbonate or ammonium bicarbonate which is easy to hydrolyze in a short time under the action of urease and can be immediately absorbed by crops; in order to ensure better implementation effect, the urea product is added with a stabilizer and auxiliary materials to promote.
However, the following problems exist in the technical scheme:
1. when urea is dissolved, the purity of the urea is not improved, and when the purity of the urea deviates, insoluble impurity mixed particles are generated when the urea is dissolved, and then insoluble impurities are accumulated at the bottom of a dissolution pot, and if serious, a pipeline and an interface are blocked, so that the subsequent urea production process is influenced.
2. The existing urea can be required to adopt a condensation structure in production, and then the reacted urea and solvent are recovered and reacted, and the problem that scale deposition at a bending part is difficult to clean exists through the existing spiral reflux condenser, so that the dissolution and condensation effects are poor, and the overall dissolution and recovery effects of the urea are affected.
3. According to the scheme, urea and solvent are insufficiently dissolved only through a heating mode, full dissolution cannot be achieved, and dissolution efficiency is low.
Disclosure of Invention
The invention aims at overcoming the defects of the prior art, and provides a production method for dissolving and purifying medical urea.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a process for the production of urea for dissolution purification of medical use, comprising:
step one, a filter screen dissolving process: the medical ethanol and urea are fed through a feed opening in sequence and are respectively poured into a dissolving cavity in the dissolving unit and the upper surface of the reaction unit, so that the urea on the upper surface of the reaction unit is soaked in the medical ethanol on the upper surface of the dissolving cavity;
step two, opposite stirring process: the driving units arranged up and down of the reaction unit are started, the directions of the upper driving unit and the lower driving unit are opposite, the stirring blade plates are driven to rotate by the upper driving unit and the lower driving unit respectively through the rotating shafts, and when urea and medicinal ethanol are dissolved on the upper surface of the reaction unit, shearing force generated by the up-down reverse rotation is applied;
step three, lifting and cleaning procedure: when the stirring is carried out in opposite directions, the spiral rod connected with the rotating shaft can rotate step by step under the rotation of the rotating shaft to drive the movable cross rod block to move upwards, so that the movable cross rod block is pushed to be unfolded through the change of the movement distance when moving, and the unfolded connecting rod unit drives the lifting reaction unit to ascend through the mounting sleeve table, so that the reaction insoluble matters above the reaction unit are separated from the ethanol solution step by step;
step four, recovering and condensing procedure: under the guidance of a curved rail arranged on the surface of the sleeve outside the top rotating shaft, the rotating folding rod and the rolling head are guided to change positions along with the rotation of the curved rail, so that the condensing plate moves synchronously along with the rotating folding rod to rotate, and condensed water rising from the dissolving cavity at the bottom of the condensing plate is collected by the condensing plate in a contact way;
step five, condensation cleaning procedure: the condensation plate can contact and squeeze with the scraping column arranged at the bottom of the condensation plate when in rotary contact condensation, so that the accumulated condensed water and scale in the condensation plate are squeezed and cleaned.
As an improvement, the filtering holes arranged on the surface of the reaction unit below the feed opening can dissolve and transfer mass to urea on the reaction unit and ethanol in the dissolution cavity when the upper stirring blade plate and the lower stirring blade plate perform the opposite stirring process.
As an improvement, the lifting cleaning process further includes:
the rotation of the screw rod can drive the movable cross rod block to rise on the surface of the screw rod, in the rising process of the screw rod, the sleeve rod block can slide upwards on the surface of the track rod, the inner side connecting block connected with the displacement head at the top of the sleeve rod block pushes the connecting rod unit to be unfolded, and the mounting sleeve platform at the top of the connecting rod unit drives the reaction unit at the top of the connecting rod unit to be lifted upwards.
As an improvement, the lift cleaning process of the reaction unit includes:
under the movable clamping of the backboard and the extension groove which are arranged at the outer side of the reaction unit and the elastic movable fit of the elastic unit between the backboard and the extension groove, the baffle plate unit at the outer side of the lantern ring unit can adapt to the inner radian of the dissolution cavity.
As an improvement, the dissolving unit includes in the lift cleaning process:
the dissolution unit comprises a movable upper cavity and a dissolution cavity, the movable upper cavity and the dissolution cavity are clamped in a radial staggered manner through an upper groove and a lower groove, and insoluble matters filtered on the surface of the reaction unit lifted in the dissolution cavity are cleaned in time by disassembling the movable upper cavity and the dissolution cavity.
As an improvement, the guide recovery condensing process of the curved rail includes:
the curved track comprises a slant curved track and a flat curved track; a flat curved rail is arranged between the inclined curved rails, and the rolling head changes in rotation angle and position along with the guiding of the inclined curved rail and the flat curved rail, so that the rotary folding rod and the condensing plate connected with the rolling head synchronously rotate and move in position, and condensed water is contacted and gathered.
As an improvement, the recovery condensing process of the condensing plate comprises:
the inside of the condensing plate is provided with condensing blades made of phase change materials, the number of the condensing plates is four, and the four condensing plates are distributed on the outer side of the sleeve.
As an improvement, the condensation cleaning process of the scraping column comprises:
the surface of the scraping column is uniformly provided with scraping plates made of rubber materials along the circumferential direction of the scraping column, and the condensing plates can squeeze the scraping plates when moving to the scraping column area, so that the scraping plates on the surface of the scraping column scrape and clean condensed water and scaling matters in the condensing plates.
As an improvement, the outside symmetry of scraping the post is provided with the location scraper blade, scrapes the scraper blade in the post outside and rotates when the location scraper blade position, and the location scraper blade can rotate extrusion contact with the scraper blade, makes the comdenstion water and the scale deposit thing that scrape the board surface and carry clear up.
As an improvement, the length of the scraping plate is the same as that of the condensing plate, the positioning scraping plate is in an arc plate shape, and the scraping plate is fully contacted and extruded with the positioning scraping plate in the contact extrusion process of the scraping plate and the positioning scraping plate.
The invention further aims to overcome the defects of the prior art, and provides production equipment for dissolving and purifying medical urea, which is used for cleaning insoluble substances generated by urea and ethanol reacted at the upper end through a movable reaction unit, so that the problem of blockage and difficult cleaning caused by the accumulation of the insoluble substances is solved, and a condensation cleaning unit arranged at the upper side of the reaction unit can be used for cleaning impurities and condensed water in steam at fixed time, so that the overall purity of urea dissolution is improved.
In order to achieve the above purpose, the present invention provides the following technical solutions:
a production facility for dissolving and purifying medical urea, comprising: a support driving unit; the top end of the supporting driving unit is provided with a dissolving unit for dissolving reaction, and the dissolving unit comprises a reaction unit for moving and filtering insoluble matters; the upward movement cleaning unit is used for repeatedly retracting and pushing and is detachably arranged at the bottom of the reaction unit; the upward-moving cleaning unit is movably connected with the reaction unit through a supporting driving unit, the outer side of the upward-moving cleaning unit is movably connected with the track rod through a positioning block, the surface of the track rod is movably sleeved with a loop rod block, and the supporting driving unit is in transmission connection with the loop rod block through a moving cross rod block; the track rod is connected with the connecting rod unit in a pushing way through the loop bar block, and the top of the connecting rod unit is provided with a reaction unit; and the condensation cleaning unit is used for condensing steam, and is arranged at the top of the reaction unit.
Preferably, the support driving unit includes an active unit; the output shaft of the driving unit is connected with a rotating shaft in a transmission way, and the upper part and the lower part of the dissolving unit are respectively provided with the driving unit; the rotating shaft is rotationally connected with the stirring blade plate through the dissolving unit, and the stirring blade plate is synchronously rotationally connected with the screw rod through the rotating shaft.
Preferably, the dissolution unit further comprises a dissolution chamber; the dissolving cavity is arranged in the dissolving unit, a reaction unit is movably arranged in the dissolving cavity, and stirring blades are arranged on the upper part and the lower part of the reaction unit; an extension plate is arranged on the outer side of the reaction unit along the circumferential direction of the reaction unit, and an extension groove is arranged on the outer side of the extension plate along the circumferential direction of the reaction unit; and a discharging opening is formed in the outer side of the top surface of the dissolving unit.
Preferably, the surface of the reaction unit is uniformly provided with filtering holes, and the extension groove is elastically connected with the backboard through an elastic unit; the top of backplate is equipped with baffle unit, the bottom of baffle unit is kept away from one side of backplate and is equipped with the breakwater, baffle unit passes through the lantern ring unit and the reaction unit swing joint on its top.
Preferably, the top of lantern ring unit distributes has a plurality of lifting frame, dissolve the unit still including the activity of upside upper chamber and downside dissolve the chamber, the upside the bottom in activity upper chamber is equipped with the upper groove, the downside dissolve the top in chamber and seted up the lower groove, upper groove, lower groove are along the radial crisscross joint of reaction unit, the bottom surface in upper groove is through lifting frame and reaction unit swing joint.
Preferably, the condensation cleaning unit is synchronously connected to the surface of the rotating shaft, and comprises an expansion rod; the outer side of the condensation cleaning unit is provided with a plurality of expansion rods along the circumferential direction of the condensation cleaning unit, the outer sides of the expansion rods are connected to the top of the downward moving rods, and the bottom of the downward moving rods is rotatably connected with a rotary folding rod; the inner side of the rotating folding rod is connected with a rolling head, and the outer side of the rotating folding rod is connected with a condensing plate.
Preferably, the condensation cleaning unit is rotationally connected with the stirring blade plate through a rotating shaft; the outside that is close to the axis of rotation of condensation clearance unit has cup jointed the sleeve, telescopic surface distribution has the curve rail, rolling head sliding connection is in the inside of curve rail, telescopic surface is equipped with the location scraper blade, the inboard of location scraper blade is provided with scrapes the movable column.
Preferably, the curved track comprises a slant curved track and a flat curved track; the inclined curved rails are symmetrically distributed by the central line of the sleeve, flat curved rails are arranged between the symmetrical inclined curved rails, and the inclined curved rails and the flat curved rails are connected in a conducting way; the scraping column is rotationally connected to the surface of the sleeve, the scraping column is symmetrically distributed along the central line of the sleeve, the sleeve is connected with the inner wall of the dissolving unit through the positioning scraping plate, the positioning scraping plate is symmetrically distributed along the central line of the scraping column, and scraping plates are uniformly distributed on the surface of the scraping column along the circumferential direction of the scraping column.
Preferably, the top of the rotating shaft is rotatably connected with a screw rod; the upward moving cleaning unit is sleeved on the surface of the rotating shaft, and the movable cross rod block is movably connected to the surface of the screw rod; the upward moving cleaning unit is connected with the inner wall of the dissolving cavity through a fixed rod of an outer mounting rod of the upward moving cleaning unit, and the sleeve rod block is movably connected with the inner connecting block through a displacement head; the inside is connected the piece and is connected the inboard at the connecting rod unit, the top of connecting rod unit is connected with the installation cover platform, installation cover platform detachable connects the bottom at the reaction unit, the connecting rod unit rotates the top of connecting rod.
The invention has the beneficial effects that:
(1) According to the invention, the driving unit drives the rotating shaft and the screw rod to rotate, so that the rotating shaft drives the stirring blade to rotate, urea and ethanol are stirred and mixed, the screw rod connected with the rotating shaft rotates to enable the movable cross rod block to ascend on the surface of the screw rod, the sleeve rod block can slide upwards on the surface of the track rod in the ascending process, and the inner connecting block connected with the displacement head at the top of the sleeve rod block pushes the connecting rod unit to be unfolded, so that the mounting sleeve table at the top of the connecting rod unit drives the reaction unit at the top of the connecting rod unit to be lifted upwards, and insoluble matters in mixed liquid at the top of the reaction unit are filtered by the reaction unit, so that the purity of urea is improved, and the quality of urea is improved.
(2) According to the invention, the lantern ring unit formed by the anti-corrosion elastic rubber material can adapt to the internal radian of the dissolving cavity by the baffle plate unit at the outer side of the lantern ring unit under the elastic movable fit of the backboard, the extension groove and the elastic unit between the backboard and the extension groove, so that insoluble matters are prevented from leaking from the edge of the reaction unit in the moving process, and the quality of urea is influenced.
(3) According to the invention, through the radial staggered clamping design of the upper groove and the lower groove, the upper groove connected with the movable upper cavity can be pulled out from the interior of the lower groove, so that the dissolving unit is opened, insoluble matters on the surface of the lifted reaction unit are conveniently cleaned by workers, and the lifting frame arranged at the top of the reaction unit can push the movable upper cavity to move upwards in the lifting process of the reaction unit, so that the stirring blade plate arranged in the movable upper cavity cannot be impacted and interfered due to the lifting of the reaction unit, even if the distance between the stirring blade plates which rotate vertically and oppositely is unchanged all the time, and the full dissolving of urea and ethanol is conveniently realized.
(4) According to the invention, the condensation cleaning unit rotates along with the rotation of the upper rotating shaft, the rotating folding rod which is rotationally connected with the downward moving rod at the outer side of the condensation cleaning unit drives the rolling head to move in the inclined curved rail and the flat curved rail under the rotation of the condensation cleaning unit, so that the condensation plate is in rolling contact with the scraping column at the bottom of the condensation plate in a transverse moving state under the sliding fit of the flat curved rail and the rolling head, the scraping plate on the surface of the scraping column is used for scraping and cleaning condensed water and scaling matters in the condensation plate, and the positioning scraping plate in the shape of an arc plate arranged at the outer side of the scraping column is used for contacting with the scraping plate on the surface of the scraping column in the rotary scraping process of the scraping column, so that the condensed water and scaling matters on the surface of the scraping plate are cleaned, the contact and cleaning degree of the scraping plate and the condensation plate is improved, and the cleaning effect of the condensation equipment is further improved.
In conclusion, the invention has the advantages of good insoluble matter cleaning effect and good dissolution recovery scaling cleaning effect.
Drawings
FIG. 1 is a process flow diagram of the present invention;
FIG. 2 is a schematic diagram of the overall structure of the present invention;
FIG. 3 is an enlarged schematic view of the portion A in FIG. 2;
FIG. 4 is an enlarged schematic view of the portion B of FIG. 2;
FIG. 5 is a schematic view of the movable upper chamber structure of the present invention;
FIG. 6 is an enlarged schematic view of the portion C in FIG. 5;
FIG. 7 is an enlarged schematic view of the portion D of FIG. 5;
FIG. 8 is a schematic view of a condensate cleaning unit according to the present invention;
FIG. 9 is a schematic diagram of the structure of a reaction unit;
fig. 10 is an enlarged schematic view of the portion E in fig. 9.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should 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", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the process or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Example 1
As shown in fig. 1, the embodiment provides a production method for dissolving and purifying medical urea, which comprises the following specific steps:
step one, a filter screen dissolving process: the medical ethanol and urea are fed through the feed opening 104 in sequence and are respectively poured on the upper surfaces of the dissolution cavity 201 and the reaction unit 202 in the dissolution unit 2, so that the urea on the upper surface of the reaction unit 202 is soaked in the medical ethanol on the upper surface of the dissolution cavity 201;
step two, opposite stirring process: by starting the driving units 102 arranged up and down of the reaction unit 202 and reversing the directions of the upper and lower driving units 102, the upper and lower driving units 102 respectively drive the stirring blades 1022 to rotate through the rotating shafts 1021, so that the urea and the medicinal ethanol are subjected to shearing force generated by the up and down reverse rotation when dissolved on the upper surface of the reaction unit 202;
step three, lifting and cleaning procedure: while stirring in opposite directions, the spiral rod 1023 connected with the rotation shaft 1021 gradually rotates under the rotation of the rotation shaft 1021 to drive the movable cross rod block 304 to move upwards, so that the movable cross rod block 304 is pushed to be unfolded through the change of the movement distance when moving, the unfolded connecting rod unit 306 drives the lifting reaction unit 202 to ascend through the mounting sleeve 3061, and the reaction insoluble matters above the reaction unit 202 are gradually separated from the ethanol solution;
step four, recovering and condensing procedure: under the guidance of a curve rail 407 arranged on the surface of a sleeve 406 outside the top rotation shaft 1021, the rotation folding rod 403 and the rolling head 404 change positions along with the rotation guidance of the curve rail 407, so that the condensation plate 405 synchronously moves and rotates along with the rotation folding rod 403, and condensed water rising from the dissolution cavity 201 at the bottom of the condensation plate 405 is collected by the condensation plate 405 in a contact way;
step five, condensation cleaning procedure: the condensation plate 405 contacts and extrudes the scraping column 409 arranged at the bottom of the condensation plate 405 while rotating to contact and condense, so that the accumulated condensed water and scale in the condensation plate 405 are extruded and cleaned.
Further improved, the filtering holes arranged on the surface of the reaction unit 202 below the feed opening 104 can dissolve and transfer mass of urea on the reaction unit 202 and ethanol in the dissolution cavity 201 when the upper and lower stirring blades 1022 perform the opposite stirring process.
Further improvement, the lifting cleaning procedure further comprises:
rotation of the screw rod 1023 drives the movable cross bar block 304 to rise on the surface of the screw rod 1023, and in the rising process, the loop bar block 303 slides upwards on the surface of the track rod 302, so that the inner connecting block 3062 connected with the displacement head 3031 at the top of the loop bar block 303 pushes the connecting rod unit 306 to expand, and the mounting sleeve stand 3061 at the top of the connecting rod unit 306 drives the reaction unit 202 at the top of the mounting sleeve block to rise upwards.
Further improvement, the lifting cleaning procedure of the reaction unit 202 comprises:
the baffle unit 2031 outside the collar unit 203 can adapt to the internal radian of the dissolution chamber 201 under the movable engagement of the back plate 20311 and the extension groove 2022 provided outside the reaction unit 202 and the elastic movable engagement of the elastic unit 2023 therebetween.
Further improved, the dissolving unit 2 includes, in the lift cleaning process:
the dissolving unit 2 comprises a movable upper cavity 207 and a dissolving cavity 201, the movable upper cavity 207 and the dissolving cavity 201 are clamped by radial staggering of an upper groove 206 and a lower groove 205, and insoluble matters filtered on the surface of the reaction unit 202 lifted in the dissolving cavity 201 are cleaned in time by disassembling the movable upper cavity 207 and the dissolving cavity 201.
Further improved, the guided recovery condensing process of the curved rail 407 includes:
the curved track 407 includes a ramp track 4071 and a flat track 4072; a flat curved rail 4072 is disposed between the inclined curved rails 4071, and the rolling head 404 changes its rotation angle and position along with the guiding of the inclined curved rail 4071 and the flat curved rail 4072, so that the rotating folding rod 403 and the condensing plate 405 connected to the rolling head 404 synchronously rotate and move in position, and the condensed water is collected by contact.
Further improvements, the recovery condensing process of the condensing plate 405 includes:
the inside of the condensation plate 405 is provided with condensation blades made of phase change material, the number of the condensation plate 405 is four, and the four condensation plates 405 are distributed on the outer side of the sleeve 406.
Further improvement, the condensation cleaning process of the scraping column 409 includes:
the surface of the scraping column 409 is uniformly provided with scraping plates made of rubber materials along the circumferential direction, and when the condensing plate 405 moves to the region of the scraping column 409, the scraping plates are extruded, so that the scraping plates on the surface of the scraping column 409 scrape and clean condensed water and scaling substances in the condensing plate 405.
Further improvement, the outside symmetry of scraping post 409 is provided with location scraper blade 408, and when the striking off plate in the outside of scraping post 409 rotated to location scraper blade 408 position, location scraper blade 408 can carry out rotatory extrusion contact with the striking off plate, makes comdenstion water and the scale deposit thing that strike off plate surface carried clear up.
Further improved, the length of the scraping plate is the same as that of the condensing plate 405, the positioning scraping plate 408 is in an arc plate shape, and the scraping plate is fully contacted and extruded with the positioning scraping plate 408 in the contact extrusion process of the scraping plate and the positioning scraping plate 408.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Example two
As shown in fig. 2 to 4, the present embodiment provides a production apparatus for dissolving and purifying medical urea, comprising: a support driving unit 1; a dissolving unit 2, wherein a dissolving unit 2 for dissolving reaction is arranged at the top end of the supporting driving unit 1, and the dissolving unit 2 comprises a reaction unit 202 for moving and filtering insoluble matters; the upward movement cleaning unit 3 is used for repeatedly retracting and pushing the upward movement cleaning unit 3 and is detachably arranged at the bottom of the reaction unit 202; the upward-moving cleaning unit 3 is movably connected with the reaction unit 202 through the supporting driving unit 1, the outer side of the upward-moving cleaning unit 3 is movably connected with the track rod 302 through the positioning block 301, the surface of the track rod 302 is movably sleeved with the loop bar block 303, and the supporting driving unit 1 is in transmission connection with the loop bar block 303 through the moving cross bar block 304; the track rod 302 is connected with the connecting rod unit 306 in a pushing way through the loop bar block 303, and the top of the connecting rod unit 306 is provided with the reaction unit 202;
the upward moving cleaning unit 3 is connected with the inner wall of the dissolution cavity 201 through a fixed rod 3051 of an outer mounting rod 305, a gap is arranged between the upward moving cleaning unit 3 and the rotation shaft 1021, the upward moving cleaning unit 3 cannot synchronously move along with the rotation shaft 1021, the positioning blocks 301 are symmetrically distributed by the center line of the upward moving cleaning unit 3, and the sleeve rod blocks 303 are movably connected with the inner connecting block 3062 through a displacement head 3031;
the inner connecting block 3062 is connected to the inner side of the connecting rod unit 306, the top of the connecting rod unit 306 is connected with a mounting sleeve 3061, the mounting sleeve 3061 is detachably connected to the bottom of the reaction unit 202, and the connecting rod unit 306 is rotatably connected to the top of the mounting rod 305; the link unit 306 is preferably a double-link or triple-link structure, and the displacement head 3031 is connected to the inner side of the topmost link;
a condensation cleaning unit 4, wherein the condensation cleaning unit 4 for condensing steam is arranged at the top of the reaction unit 202;
wherein the support driving unit 1 comprises an active unit 102; an output shaft of the driving unit 102 is in transmission connection with a rotation shaft 1021, and the driving unit 102 is arranged above and below the dissolving unit 2;
the rotation shaft 1021 is rotationally connected with the stirring blade 1022 through the dissolving unit 2, and the stirring blade 1022 is rotationally connected with the spiral rod 1023 through the rotation shaft 1021; the supporting driving unit 1 is provided with a plurality of supporting legs 101 along the circumferential direction, the tops of the supporting legs 101 are connected with the surface of the dissolving unit 2 through a connecting plate 103, and the driving unit 102 is preferably a three-phase asynchronous gear motor;
it should be added that, the driving unit 102 drives the rotation shaft 1021 and the spiral rod 1023 to rotate, so that the rotation shaft 1021 drives the stirring blade 1022 to rotate, urea and ethanol are stirred and mixed, the rotation of the spiral rod 1023 connected with the rotation shaft 1021 can enable the movable cross rod block 304 to ascend on the surface of the spiral rod 1023, in the ascending process, the sleeve rod block 303 can slide upwards on the surface of the track rod 302, and then the inner connecting block 3062 connected with the displacement head 3031 at the top of the sleeve rod block 303 pushes the connecting rod unit 306 to expand, so that the mounting sleeve stand 3061 at the top of the connecting rod unit 306 drives the reaction unit 202 at the top of the connecting rod unit to ascend, and therefore, insoluble matters in mixed solution at the top of the reaction unit 202 are filtered, the purity of urea is improved, and the quality of urea is improved.
Wherein the dissolving unit 2 further comprises a dissolving chamber 201; the dissolving cavity 201 is arranged in the dissolving unit 2, a reaction unit 202 is movably arranged in the dissolving cavity 201, and stirring blades 1022 are arranged on the upper and lower sides of the reaction unit 202; an extension plate 2021 is provided on the outer side of the reaction unit 202 along the circumferential direction thereof, and an extension groove 2022 is provided on the outer side of the extension plate 2021 along the circumferential direction of the reaction unit 202; a feed opening 104 is formed in the outer side of the top surface of the dissolving unit 2;
wherein, the surface of the reaction unit 202 is uniformly distributed with filtering holes, the bottom contour of the reaction unit 202 is matched with the bottom contour of the dissolution cavity 201, and the extension groove 2022 is elastically connected with the backboard 20311 through an elastic unit 2023; the elastic unit 2023 is preferably an elastic rubber column or a spring, the top end of the back plate 20311 is provided with a baffle unit 2031, the baffle unit 2031 is made of an anti-corrosion elastic rubber material, one side of the bottom of the baffle unit 2031, which is far away from the back plate 20311, is provided with a water baffle 20312, and the baffle unit 2031 is movably connected with the reaction unit 202 through a collar unit 203 at the top end thereof; the collar unit 203 is made of an anti-corrosion elastic rubber material, the baffle unit 2031 is preferably connected with the reaction unit 202 in a sliding manner through the connection of the collar unit 203 at the top end of the baffle unit 2031, the cross section of the collar unit 203 is 7-shaped, and the bottoms of the collar unit 203 and the water baffle 20312 extend along the axial direction of the reaction unit 202;
it should be added that, by the collar unit 203 made of the anti-corrosion elastic rubber material, under the elastic clearance fit of the back plate 20311, the extension groove 2022 and the elastic unit 2023 therebetween, the baffle unit 2031 on the outer side of the collar unit 203 can adapt to the internal radian of the dissolution cavity 201, so as to avoid the leakage of insoluble matters from the edge of the reaction unit 202 during the movement, and the quality of urea is affected.
As shown in fig. 2-10, the top of the collar unit 203 is distributed with a plurality of lifting frames 204,
the dissolving unit 2 further comprises a movable upper cavity 207 at the upper side and a dissolving cavity 201 at the lower side, an upper groove 206 is formed in the bottom of the movable upper cavity 207 at the upper side, a lower groove 205 is formed in the top of the dissolving cavity 201 at the lower side, the upper groove 206 and the lower groove 205 are in staggered clamping connection along the radial direction of the reaction unit 202, and the bottom surface of the upper groove 206 is movably connected with the reaction unit 202 through a lifting frame 204;
wherein the condensation cleaning unit 4 is synchronously connected to the surface of the rotation shaft 1021, and the condensation cleaning unit 4 comprises an expansion rod 401; the outside of the condensation cleaning unit 4 is provided with a plurality of expansion rods 401 along the circumferential direction of the condensation cleaning unit, the included angle between each expansion rod 401 is equal, the outside of each expansion rod 401 is connected to the top of a downward moving rod 402, the bottom of the downward moving rod 402 is rotationally connected with a rotating folding rod 403, the inside of the rotating folding rod 403 is connected with a rolling head 404, the outside of the rotating folding rod 403 is connected with a condensation plate 405, and condensation blades formed by phase change materials are arranged in the condensation plate 405, so that the condensation of steam is facilitated;
it is to be added that, through the radial staggered joint design of the upper groove 206 and the lower groove 205, the upper groove 206 connected with the movable upper cavity 207 can be pulled out from the interior of the lower groove 205, so that the dissolving unit 2 is opened, insoluble matters on the surface of the lifted reaction unit 202 are conveniently cleaned by workers, and the lifting frame 204 designed on the top of the reaction unit 202 can push the movable upper cavity 207 to move upwards in the lifting process of the reaction unit 202, so that the stirring blade 1022 arranged in the movable upper cavity 207 cannot be impacted and interfered due to the lifting of the reaction unit 202, even if the distance between the stirring blade 1022 which rotates in the up-down opposite direction is always unchanged, the urea and the ethanol can be conveniently fully dissolved.
As shown in fig. 5 to 8, the condensing cleaning unit 4 is rotatably connected to the agitating blade 1022 through a rotation shaft 1021; a sleeve 406 is sleeved on the outer side of the rotating shaft 1021 close to the condensation cleaning unit 4, a curve rail 407 is distributed on the surface of the sleeve 406, the rolling head 404 is connected inside the curve rail 407 in a sliding mode, a positioning scraping plate 408 is arranged on the surface of the sleeve 406, and scraping columns 409 are arranged on the inner side of the positioning scraping plate 408; the positioning scraping plate 408 is an arc plate;
wherein the curved track 407 includes a diagonal track 4071 and a flat track 4072; the inclined curved rails 4071 are symmetrically distributed by the central line of the sleeve 406, flat curved rails 4072 are arranged between the symmetrical inclined curved rails 4071, and the inclined curved rails 4071 and the flat curved rails 4072 are connected in a conducting way; the scraping columns 409 are rotationally connected to the surface of the sleeve 406, the scraping columns 409 are symmetrically distributed along the central line of the sleeve 406, the sleeve 406 is connected with the inner wall of the dissolving unit 2 through positioning scraping plates 408, the positioning scraping plates 408 are symmetrically distributed along the central line of the scraping columns 409, and scraping plates are uniformly distributed on the surface of the scraping columns 409 along the circumferential direction of the scraping columns; a gap is arranged between the sleeve 406 and the rotating shaft 1021, so that the sleeve 406 cannot rotate along with the rotating shaft 1021, the length of the scraping plate is the same as that of the condensing plate 405, and the scraping plate is made of a corrosion-resistant rubber material;
wherein, the top of the rotation shaft 1021 is rotatably connected with a screw 1023; the upward moving cleaning unit 3 is sleeved on the surface of the rotating shaft 1021, and the movable cross rod block 304 is movably connected to the surface of the screw rod 1023;
it should be added that, through the rotation of upside rotation shaft 1021, and then make condensation cleaning unit 4 rotate thereupon, and make the rotation of condensation cleaning unit 4 outside move down the pole 402 rotation connection of pole 403 drive rolling head 404 and in the inside motion of oblique curved rail 4071 and flat curved rail 4072 down, this in-process can make rolling head 404 drive condensation plate 405 and rotate the knot comdenstion water, and rolling head 404 motion can make condensation plate 405 overturn when oblique curved rail 4071, and rolling head 404 motion can make condensation plate 405 be in the transverse state when flat curved rail 4072, the flat curved rail 4072 of opposite arrangement can make condensation plate 405 arrange the surface difference in the bottom, and then be convenient for when condensation plate 405 under Ping Qugui 4072 and rolling head 404's sliding fit, make condensation plate 405 under the state of rolling contact with the scraping post 409 of its bottom, and then make the scraping plate on the surface of scraping post 409 carry out the rotatory knot comdenstion water and scale deposit thing, and the setting up the positioning scraper 408 of scraping plate shape in the scraping post 409 can make the surface of scraping plate 405 and scrape down in the surface of rolling post 409 and scrape down and take place the surface of condensation plate 405 and the scaling down, the effect of cleaning the scaling device has been improved, and the cleaning effect has been carried out the scaling device and has been cleaned up.

Claims (6)

1. A process for the production of urea for dissolution and purification of medical use, characterized in that it comprises:
step one, a filter screen dissolving process: the medical ethanol and urea are fed through a feed opening in sequence and are respectively poured into a dissolving cavity in the dissolving unit and the upper surface of the reaction unit, so that the urea on the upper surface of the reaction unit is soaked in the medical ethanol on the upper surface of the dissolving cavity;
step two, opposite stirring process: the driving units arranged up and down of the reaction unit are started, the directions of the upper driving unit and the lower driving unit are opposite, the stirring blade plates are driven to rotate by the upper driving unit and the lower driving unit respectively through the rotating shafts, and when urea and medicinal ethanol are dissolved on the upper surface of the reaction unit, shearing force generated by the up-down reverse rotation is applied;
step three, lifting and cleaning procedure: when the stirring is carried out in opposite directions, the spiral rod connected with the rotating shaft can rotate step by step under the rotation of the rotating shaft to drive the movable cross rod block to move upwards, so that the movable cross rod block is pushed to be unfolded through the change of the movement distance when moving, and the unfolded connecting rod unit drives the lifting reaction unit to ascend through the mounting sleeve table, so that the reaction insoluble matters above the reaction unit are separated from the ethanol solution step by step;
step four, recovering and condensing procedure: under the guidance of a curved rail arranged on the surface of the sleeve outside the top rotating shaft, the rotating folding rod and the rolling head are guided to change positions along with the rotation of the curved rail, so that the condensing plate moves synchronously along with the rotating folding rod to rotate, and condensed water rising from the dissolving cavity at the bottom of the condensing plate is collected by the condensing plate in a contact way;
step five, condensation cleaning procedure: the condensation plate is contacted and extruded with a scraping column arranged at the bottom of the condensation plate when in rotary contact condensation, so that condensed water and scale accumulated in the condensation plate are extruded and cleaned;
the above method is operated with a production device comprising a support drive unit,
the top end of the supporting driving unit is provided with a dissolving unit for dissolving reaction, and the dissolving unit comprises a reaction unit for moving and filtering insoluble matters; the upward movement cleaning unit is used for repeatedly retracting and pushing and is detachably arranged at the bottom of the reaction unit; the upward-moving cleaning unit is movably connected with the reaction unit through a supporting driving unit, the outer side of the upward-moving cleaning unit is movably connected with the track rod through a positioning block, the surface of the track rod is movably sleeved with a loop rod block, and the supporting driving unit is in transmission connection with the loop rod block through a moving cross rod block; the track rod is connected with the connecting rod unit in a pushing way through the loop bar block, and the top of the connecting rod unit is provided with a reaction unit; the condensing cleaning unit is used for condensing steam and is arranged at the top of the reaction unit;
the support driving unit comprises an active unit; the output shaft of the driving unit is connected with a rotating shaft in a transmission way, and the upper part and the lower part of the dissolving unit are respectively provided with the driving unit; the rotating shaft is rotationally connected with the stirring blade plate through the dissolving unit, the stirring blade plate is synchronously rotationally connected with the screw rod through the rotating shaft, and the dissolving unit further comprises a dissolving cavity; the dissolving cavity is arranged in the dissolving unit, a reaction unit is movably arranged in the dissolving cavity, and stirring blades are arranged on the upper part and the lower part of the reaction unit; an extension plate is arranged on the outer side of the reaction unit along the circumferential direction of the reaction unit, and an extension groove is arranged on the outer side of the extension plate along the circumferential direction of the reaction unit; a discharging opening is formed in the outer side of the top surface of the dissolving unit;
the surface of the reaction unit is uniformly provided with filtering holes, and the extension groove is elastically connected with the backboard through an elastic unit; the top end of the backboard is provided with a baffle unit, one side, far away from the backboard, of the bottom of the baffle unit is provided with a water baffle, and the baffle unit is movably connected with the reaction unit through a lantern ring unit at the top end of the baffle unit;
filtering holes are formed in the surface of the reaction unit below the feed opening, and when the upper stirring blade plate and the lower stirring blade plate perform the opposite stirring process, urea on the reaction unit and ethanol in the dissolution cavity are dissolved and transferred;
the lifting cleaning procedure also comprises the following steps:
the rotation of the screw rod can drive the movable cross rod block to rise on the surface of the screw rod, and in the rising process, the sleeve rod block can slide upwards on the surface of the track rod, so that the inner connecting block connected with the displacement head at the top of the sleeve rod block pushes the connecting rod unit to be unfolded, and the mounting sleeve platform at the top of the connecting rod unit drives the reaction unit at the top of the connecting rod unit to rise upwards;
the lifting and cleaning procedure of the reaction unit comprises the following steps:
under the movable clamping of the backboard and the extension groove which are arranged at the outer side of the reaction unit and the elastic movable fit of the elastic unit between the backboard and the extension groove, the baffle plate unit at the outer side of the lantern ring unit is adapted to the inner radian of the dissolution cavity;
the dissolving unit comprises the following components in the lifting cleaning procedure:
the dissolution unit comprises a movable upper cavity and a dissolution cavity, the movable upper cavity and the dissolution cavity are clamped in a radial staggered manner through an upper groove and a lower groove, and insoluble matters filtered on the surface of the reaction unit lifted in the dissolution cavity are cleaned in time by disassembling the movable upper cavity and the dissolution cavity.
2. A process for the production of urea for dissolution purification of medical use as defined in claim 1, wherein,
the guide recovery condensation process of the curved rail comprises the following steps:
the curved track comprises a slant curved track and a flat curved track; a flat curved rail is arranged between the inclined curved rails, and the rolling head changes in rotation angle and position along with the guiding of the inclined curved rail and the flat curved rail, so that the rotary folding rod and the condensing plate connected with the rolling head synchronously rotate and move in position, and condensed water is contacted and gathered.
3. The method for producing urea for dissolution and purification of medical use as set forth in claim 1, wherein the recovery condensing process of the condensing plate includes:
the inside of the condensing plate is provided with condensing blades made of phase change materials, the number of the condensing plates is four, and the four condensing plates are distributed on the outer side of the sleeve.
4. A process for the production of urea for dissolution purification of medical use as defined in claim 1, wherein,
the condensation cleaning procedure of the scraping column comprises the following steps:
the surface of the scraping column is uniformly provided with scraping plates made of rubber materials along the circumferential direction of the scraping column, and the condensing plates can squeeze the scraping plates when moving to the scraping column area, so that the scraping plates on the surface of the scraping column scrape and clean condensed water and scaling matters in the condensing plates.
5. A process for the production of urea for dissolution purification of medical use as defined in claim 4, wherein,
the outside symmetry of scraping the post is provided with the location scraper blade, scrapes the scraper blade in the post outside and rotates when the location scraper blade position, and the location scraper blade can carry out rotary extrusion contact with the scraper blade, makes comdenstion water and the scale deposit thing that the scraper blade surface carried clear up.
6. A process for the production of urea for dissolution purification of medical use as defined in claim 5, wherein,
the length of the scraping plate is the same as that of the condensing plate, the positioning scraping plate is in an arc plate shape, and the scraping plate is fully contacted and extruded with the positioning scraping plate in the contact extrusion process of the scraping plate and the positioning scraping plate.
CN202210963412.XA 2022-08-11 2022-08-11 Production method for dissolving and purifying medical urea Active CN115025648B (en)

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