Separation device for heparin sodium processing and processing technology

文档序号:1527109 发布日期:2020-02-14 浏览:30次 中文

阅读说明:本技术 一种肝素钠加工使用的分离装置及加工的工艺 (Separation device for heparin sodium processing and processing technology ) 是由 钱成 于 2019-11-20 设计创作,主要内容包括:本发明公开了一种肝素钠加工使用的分离装置,包括分离罐、吸水盘、集水箱和底座,所述底座底端的四个拐角处均安装有滚轮,所述底座的顶端设置有凹槽,且凹槽的内部安装有搅拌电机,所述搅拌电机上方的底座的顶端安装有分离罐,且分离罐一侧的底端安装有出料管,出料管上安装有阀门,所述出料管上方的分离罐上安装有控制器,所述分离罐顶端的中间位置处安装有电动缸,且电动缸一侧的分离罐的顶端安装有排气管。本发明通过安装有搅拌电机、搅拌轴、转盘、双轴电机、搅拌杆、叶轮和螺旋叶片,使得便于通过搅拌杆和螺旋叶片的纵横双向旋转,加快充分分散肝素钠溶液,以便提高其沉淀效率,方便分离。(The invention discloses a separation device for heparin sodium processing, which comprises a separation tank, a water absorption disc, a water collection tank and a base, wherein four corners of the bottom end of the base are respectively provided with a roller, the top end of the base is provided with a groove, a stirring motor is arranged in the groove, the top end of the base above the stirring motor is provided with the separation tank, the bottom end of one side of the separation tank is provided with a discharge pipe, a valve is arranged on the discharge pipe, the separation tank above the discharge pipe is provided with a controller, the middle position of the top end of the separation tank is provided with an electric cylinder, and the top end of the separation tank on one side of the electric cylinder is provided with an exhaust pipe. According to the invention, the stirring motor, the stirring shaft, the rotary table, the double-shaft motor, the stirring rod, the impeller and the helical blade are arranged, so that the heparin sodium solution can be quickly and fully dispersed through the longitudinal and transverse bidirectional rotation of the stirring rod and the helical blade, the precipitation efficiency of the heparin sodium solution can be improved, and the separation is convenient.)

1. The utility model provides a separator that heparin sodium processing was used, includes knockout drum (9), absorbs water dish (11), header tank (18) and base (20), its characterized in that: gyro wheel (19) are all installed to four corners of base (20) bottom, the top of base (20) is provided with recess (24), and the internally mounted of recess (24) has agitator motor (23), knockout drum (9) is installed on the top of base (20) of agitator motor (23) top, and the bottom of knockout drum (9) one side installs discharging pipe (25), installs valve (1) on discharging pipe (25), install controller (6) on knockout drum (9) of discharging pipe (25) top, electronic jar (10) are installed to the intermediate position department on knockout drum (9) top, and the top of knockout drum (9) of electronic jar (10) one side installs blast pipe (8), water sucking disc (11) is installed on the vertical top that runs through knockout drum (9) in bottom of electronic jar (10), and water sucking disc (11)'s bottom evenly installs suction nozzle (35), the automatic stirring device is characterized in that a turntable (22) is installed at the middle position of the bottom end inside the separation tank (9), the bottom end of the turntable (22) is fixedly connected with an output shaft of a stirring motor (23), a fixing groove (32) is arranged at the top end of the turntable (22), a stirring shaft (3) is installed on the fixing groove (32), a bearing seat (26) is installed at the top end of the stirring shaft (3), driving grooves (28) are evenly arranged inside the stirring shaft (3), a double-shaft motor (27) is installed at the bottom end inside the driving grooves (28), stirring rods (2) are installed at two ends of the double-shaft motor (27), electric heating pipes (21) are installed on the inner walls of the separation tanks (9) on two sides of the stirring shaft (3), a temperature sensor (4) is installed on one side, close to a controller (6), of the inside of the separation tank (9), and an electric telescopic rod (17) is installed on, and level sensor (16) are installed on the top of electric telescopic handle (17), header tank (18) are installed on the top of base (20) that discharging pipe (25) one side was kept away from in knockout drum (9), and water pump (14) are installed on the top of header tank (18), the water inlet of water pump (14) is linked together through the delivery port of inhaling water pipe (13) and water absorption dish (11), the delivery port of water pump (14) is linked together through the inside of outlet pipe (15) with header tank (18), the input electric connection of temperature sensor (4) and level sensor (16) all through wire and controller (6), and the output of controller (6) passes through the wire respectively with the input electric connection of electric heating pipe (21) and electronic jar (10).

2. The separation device for heparin sodium processing according to claim 1, wherein: the stirring rod (2) is uniformly provided with impellers (29), and the impellers (29) are uniformly provided with helical blades (30).

3. The separation device for heparin sodium processing according to claim 1, wherein: the top all around of knockout drum (9) inside all is provided with slot (7), bracing piece (5) are all installed around bearing frame (26), and bracing piece (5) all are connected with slot (7).

4. The separation device for heparin sodium processing according to claim 1, wherein: and a transparent observation window is arranged on the outer side of the separation tank (9).

5. The separation device for heparin sodium processing according to claim 1, wherein: slider (34) are all installed at the both ends of sucking disc (11) both sides, knockout drum (9) inside both ends that are close to slider (34) both sides all are provided with spout (12), and spout (12) all are connected with slider (34).

6. The separation device for heparin sodium processing according to claim 1, wherein: the inside of carousel (22) in fixed slot (32) outside evenly is provided with draw-in groove (31), fixture block (33) are all evenly installed in the outside of (mixing) shaft (3) bottom, and fixture block (33) all are connected with draw-in groove (31), fixture block (33) all set up to four with draw-in groove (31), and fixture block (33) all are the cross and arrange with draw-in groove (31).

7. The heparin sodium processing technology is characterized by comprising the following specific steps:

1) firstly, 2000kg of lung tissues and intestinal tissues of pigs, cattle and sheep are cut off fat and trachea sundries, weighed, cut into blocks by a meat grinder with the aperture of 1.5mm, and ground into lung pulp;

2) adding 4000kg of water, cooling to 10 ℃, adjusting the pH to 4.0 by using 6mol/L hydrochloric acid, and leaching for 20 hours;

3) filtering the leaching solution with a filter screen, collecting ① residues, adding 200kg of 8% trichloroacetic acid solution into the filtrate, stirring for 5 min, filtering, collecting ② residues, adjusting the pH of the filtrate to 9.0, standing at 5 deg.C for 10 hr, removing the solid on the liquid surface, centrifuging with the separator of any one of claims 1-6,

4) mixing the collected filtrate and filter residue, adding 20kg of sodium chloride, stirring until the sodium chloride is dissolved, adding sodium hydroxide to adjust the pH to 8, heating to 60 ℃, keeping the temperature, stirring for 1 hour, heating to 100 ℃, cooling to 50 ℃, and starting filtering;

5) adding 60kgD254 resin into the filtrate, adsorbing for 6-8 hours at 55 ℃, and filtering;

6) eluting the filtered resin with 6mol/L sodium chloride at 60 ℃ for 2 hours, and then washing the resin with 2 mol/L sodium chloride for 3 times, wherein each time lasts for 10 minutes;

7) mixing the eluent and the washing solution, namely adding 8mol/L hydrochloric acid to adjust the pH of the solution to 5, adding 550kg of 90% ethanol, stirring uniformly and standing for 24 hours; removing supernatant, dehydrating the precipitate with anhydrous ethanol for 3 times, dehydrating with acetone, placing in a vacuum drying oven, adding phosphorus pentoxide as desiccant, each 400g, changing for 1 time every 12 hr, and vacuum drying for 48 hr to obtain heparin sodium crude product 500mg with titer of 88 IU/mg;

8) putting 1000Kg of heparin sodium crude product and 800Kg of purified water into a stirring kettle for fully dissolving; adjusting the pH value of the obtained heparin sodium aqueous solution to 5.0, and cooling to 10 ℃; starting stirring, and dropwise adding 90% ethanol at-12 deg.C into the heparin sodium water solution under stirring condition until the ethanol concentration is 60%; after upper ethanol is siphoned, centrifugal separation and spin-drying are carried out; adding absolute ethyl alcohol until the concentration of the ethyl alcohol is 95%, and standing for more than 15 hours; after the ethanol on the upper layer is siphoned again, centrifuging the precipitate on the lower layer, and drying by spinning to obtain a heparin sodium wet product; drying the wet heparin sodium product at 38 ℃ for 72 hours under vacuum condition to obtain refined heparin sodium product.

Technical Field

The invention relates to the technical field of separation devices, in particular to a separation device for heparin sodium processing and a processing technology.

Background

Heparin sodium is an anticoagulant which is most used clinically and widely applied, the heparin sodium appears in a compound form with protein in a living body, the compound has no anticoagulant activity, the anticoagulant activity can be shown only by separating the heparin sodium alone, the heparin sodium is widely distributed in the biological boundary and exists in the lung tissues and the intestinal tissues of higher mammals such as pigs, cows, sheep and the like, at present, in the precipitation process of the heparin sodium preparation, after a heparin sodium semi-finished product (heparin sodium liquid medicine) in a precipitation tank is formed, the heparin sodium liquid medicine needs to be separated from the liquid (called as waste water) on the upper layer of the liquid medicine, the massive heparin sodium can be obtained in the later treatment, the separation efficiency of the existing separation device is poor, the precipitation speed of the heparin sodium is slow, meanwhile, partial heparin sodium liquid medicine is easy to be sucked away in the separation process, and the yield of the heparin sodium is reduced, therefore, a separation device for processing heparin sodium is provided to solve the problems.

Disclosure of Invention

The invention aims to provide a separating device for processing heparin sodium and a processing process, which aim to solve the problems that the separation efficiency is poor, the precipitation speed of the heparin sodium is low, part of heparin sodium liquid medicine is easily sucked away in the separation process, and the yield of the heparin sodium is reduced in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: a separation device for heparin sodium processing comprises a separation tank, a water absorption disc, a water collection tank and a base, wherein idler wheels are mounted at four corners of the bottom end of the base, a groove is formed in the top end of the base, a stirring motor is mounted in the groove, the separation tank is mounted at the top end of the base above the stirring motor, a discharge pipe is mounted at the bottom end of one side of the separation tank, a valve is mounted on the discharge pipe, a controller is mounted on the separation tank above the discharge pipe, an electric cylinder is mounted at the middle position of the top end of the separation tank, an exhaust pipe is mounted at the top end of the separation tank on one side of the electric cylinder, the water absorption disc is mounted at the bottom end of the electric cylinder, the water absorption disc is vertically penetrated through the top end of the separation tank, suction nozzles are uniformly mounted at the bottom end of the water absorption disc, a rotary disc is mounted, the top end of the rotary table is provided with a fixed groove, the fixed groove is provided with a stirring shaft, the top end of the stirring shaft is provided with a bearing seat, the interior of the stirring shaft is uniformly provided with a driving groove, the bottom end of the interior of the driving groove is provided with a double-shaft motor, the two ends of the double-shaft motor are provided with stirring rods, the inner walls of the separation tanks at the two sides of the stirring shaft are provided with electric heating pipes, one side of the interior of the separation tank close to the controller is provided with a temperature sensor, one side of the interior of the separation tank far away from the controller is provided with an electric telescopic rod, the top end of the electric telescopic rod is provided with a water level sensor, the top end of the base of the separation tank far away from the discharging pipe is provided with a water collecting tank, the top end of the water collecting tank is, the output ends of the temperature sensor and the water level sensor are electrically connected with the input end of the controller through leads, and the output end of the controller is electrically connected with the input ends of the electric heating pipe and the electric cylinder through leads respectively.

Preferably, all evenly install the impeller on the puddler, and all evenly install helical blade on the impeller.

Preferably, slots are formed in the top ends of the inner portion and the periphery of the separation tank, supporting rods are mounted on the periphery of the bearing seat, and the supporting rods are connected with the slots.

Preferably, a transparent observation window is arranged on the outer side of the separation tank.

Preferably, the sliders are installed at two ends of two sides of the water absorption disc, sliding grooves are formed in two ends, close to two sides of the sliders, of the separation tank, and the sliding grooves are connected with the sliders.

Preferably, the inside of the carousel in the fixed slot outside evenly is provided with the draw-in groove, the fixture block is all evenly installed in the outside of (mixing) shaft bottom, and the fixture block all is connected with the draw-in groove, the fixture block all sets up to four with the draw-in groove, and fixture block and draw-in groove all are the cross and arrange.

A heparin sodium processing technology comprises the following specific steps:

1) firstly, 2000kg of lung tissues and intestinal tissues of pigs, cattle and sheep are cut off fat and trachea sundries, weighed, cut into blocks by a meat grinder with the aperture of 1.5mm and minced into lung pulp.

2) 4000kg of water were added, the temperature was lowered to 10 ℃ and the pH was adjusted to 4.0 with 6mol/L hydrochloric acid, and the mixture was extracted for 20 hours.

3) Filtering the leaching solution with a filter screen, collecting filter residue ①, adding 200kg of 8% trichloroacetic acid solution into the filtrate, stirring for 5 minutes, filtering, collecting filter residue ②, adjusting the pH of the filtrate to 9.0, standing at a temperature below 5 ℃ for 10 hours, removing solid matters on the liquid surface, and performing centrifugal separation by using the separation device for processing heparin sodium.

4) Mixing the collected filtrate and filter residue, adding 20kg of sodium chloride, stirring until the sodium chloride is dissolved, adding sodium hydroxide to adjust the pH to 8, heating to 60 ℃, keeping the temperature, stirring for 1 hour, heating to 100 ℃, cooling to 50 ℃, and starting filtering.

5) Adding 60kgD254 resin into the filtrate, adsorbing for 6-8 hours at 55 ℃, and filtering.

6) The filtered resin was eluted with 6mol/L NaCl at 60 ℃ for 2 hours and then washed with 2 mol/L NaCl for 3 times for 10 minutes each.

7) Mixing the eluent and the washing solution, namely adding 8mol/L hydrochloric acid to adjust the pH of the solution to 5, adding 550kg of 90% ethanol, stirring uniformly and standing for 24 hours; removing supernatant, dehydrating the precipitate with anhydrous ethanol for 3 times, dehydrating with acetone, vacuum drying in a vacuum oven, adding phosphorus pentoxide as desiccant, 400g each time, changing for 1 time every 12 hr, and vacuum drying for 48 hr to obtain heparin sodium crude product 500mg with titer of 88 IU/mg.

8) Putting 1000Kg of heparin sodium crude product and 800Kg of purified water into a stirring kettle for fully dissolving; adjusting the pH value of the obtained heparin sodium aqueous solution to 5.0, and cooling to 10 ℃; starting stirring, and dropwise adding 90% ethanol at-12 deg.C into the heparin sodium water solution under stirring condition until the ethanol concentration is 60%; after upper ethanol is siphoned, centrifugal separation and spin-drying are carried out; adding absolute ethyl alcohol until the concentration of the ethyl alcohol is 95%, and standing for more than 15 hours; after the ethanol on the upper layer is siphoned again, centrifuging the precipitate on the lower layer, and drying by spinning to obtain a heparin sodium wet product; drying the wet heparin sodium product at 38 ℃ for 72 hours under vacuum condition to obtain refined heparin sodium product.

Compared with the prior art, the invention has the beneficial effects that:

(1) the device is through installing agitator motor, (mixing) shaft, the carousel, the biax motor, the puddler, impeller and helical blade, make be convenient for through puddler and helical blade's the both-way rotation of moving about freely and quickly, accelerate fully dispersed heparin sodium solution, so that improve its precipitation efficiency, convenient separation, the device is through installing slot, bracing piece, bearing frame, fixture block and draw-in groove simultaneously, make to be convenient for take out the puddler subassembly from the knockout drum, so that change or wash its maintenance, thereby ensure its stirring effect.

(2) The device is through installing electronic jar, the spout, the slider, water absorption dish and suction nozzle, make be convenient for through water absorption dish at the uniform velocity absorb the upper waste water after the heparin sodium deposits the layering, be favorable to keeping the stability of layering liquid level, the device is through installing electric telescopic handle and level sensor simultaneously, make be convenient for remove level sensor to the appropriate position department of layering liquid level top after the heparin sodium deposits, so that when water absorption dish absorbs waste water and is about to reach the layering liquid level, level sensor can accept the signal, and transmit the signal for electronic jar through the controller, electronic jar stops moving down, thereby effectively avoid water absorption dish to continue to absorb water and lead to the heparin sodium liquid medicine to be siphoned away, cause the loss of heparin sodium.

(3) The device is through installing electric heating pipe and temperature sensor for when the dish that absorbs water stops to absorb water, the remaining solution of heating, so that deposit back layering liquid level top remaining fractional waste water evaporation separation with heparin sodium, thereby effectively reduced heparin sodium's loss, can carry out heating temperature's control through temperature sensor simultaneously, avoid causing volatilizing of heparin sodium.

(4) By adopting the separation device and the processing technology, high-quality refined heparin sodium can be processed, and waste is reduced.

Description of the drawings:

in order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the present invention.

FIG. 2 is a schematic view of the structure of the stirring shaft of the present invention.

Fig. 3 is a schematic view of the structure of the water absorbing disk of the invention.

Fig. 4 is a schematic circuit structure of the present invention.

In the figure: 1. a valve; 2. a stirring rod; 3. a stirring shaft; 4. a temperature sensor; 5. a support bar; 6. a controller; 7, a slot; 8. an exhaust pipe; 9. a separation tank; 10. an electric cylinder; 11. a water absorbing pan; 12. a chute; 13. a suction pipe; 14. a water pump; 15. a water outlet pipe; 16. a water level sensor; 17. an electric telescopic rod; 18. a water collection tank; 19. a roller; 20. a base; 21. an electric heating tube; 22. a turntable; 23. a stirring motor; 24. a groove; 25. a discharge pipe; 26. a bearing seat; 27. a double-shaft motor; 28. a drive slot; 29. an impeller; 30. a helical blade; 31. a card slot; 32. fixing grooves; 33. a clamping block; 34. a slider; 35. a suction nozzle.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is shown: a separation device for heparin sodium processing comprises a separation tank 9, a water absorption disc 11, a water collection tank 18 and a base 20, wherein four corners of the bottom end of the base 20 are respectively provided with a roller 19, the top end of the base 20 is provided with a groove 24, a stirring motor 23 is arranged in the groove 24, the model of the stirring motor 23 can be Y80M2-2, the stirring motor 23 is connected with a mains supply through a lead, the separation tank 9 is arranged at the top end of the base 20 above the stirring motor 23, a transparent observation window is arranged at the outer side of the separation tank 9, so that layered liquid level can be observed conveniently,

a discharge pipe 25 is installed at the bottom end of one side of a separation tank 9, a valve 1 is installed on the discharge pipe 25, a controller 6 is installed on the separation tank 9 above the discharge pipe 25, the model of the controller 6 can be MAM-330, an electric cylinder 10 is installed at the middle position of the top end of the separation tank 9, the model of the electric cylinder 10 can be SEC75-R041, the electric cylinder 10 is connected with commercial power through a lead, an exhaust pipe 8 is installed at the top end of the separation tank 9 at one side of the electric cylinder 10, a water suction disc 11 is installed at the bottom end of the electric cylinder 10 vertically penetrating through the top end of the separation tank 9, sliding blocks 34 are installed at two ends of two sides of the water suction disc 11, sliding grooves 12 are respectively arranged at two ends of two sides close to the sliding blocks 34 inside the separation tank 9, the sliding grooves 12,

suction nozzle 35 is evenly installed to the bottom of sucking disc 11, carousel 22 is installed to the intermediate position department of the inside bottom of knockout drum 9, carousel 22's bottom and agitator motor 23's output shaft fixed connection, carousel 22's top is provided with fixed slot 32, the inside of the carousel 22 in the fixed slot 32 outside evenly is provided with draw-in groove 31, fixture block 33 is all evenly installed in the outside of (mixing) shaft 3 bottom, fixture block 33 all is connected with draw-in groove 31, fixture block 33 all sets up to four with draw-in groove 31, fixture block 33 all is the cross form with draw-in groove 31 and arranges, be convenient for install and dismantle (mixing) shaft.

Install (mixing) shaft 3 on the fixed slot 32, bearing frame 26 is installed on the top of (mixing) shaft 3, and 9 inside tops all around of knockout drum all are provided with slot 7, all install bracing piece 5 around bearing frame 26, and bracing piece 5 all is connected with slot 7, is convenient for take out (mixing) shaft 3's sub-assembly.

The inside of (mixing) shaft 3 evenly is provided with driving groove 28, and double-shaft motor 27 is all installed to the inside bottom in driving groove 28, and this double-shaft motor 27 model can be JGY370, and this double-shaft motor 27 is connected with the commercial power through the wire, and puddler 2 is all installed at double-shaft motor 27's both ends, all evenly installs impeller 29 on the puddler 2, all evenly installs helical blade 30 on impeller 29, is convenient for improve the efficiency that the stirring was mixed.

The inner walls of the separation tanks 9 at two sides of the stirring shaft 3 are both provided with electric heating pipes 21, one side of the interior of the separation tank 9 close to the controller 6 IS provided with a temperature sensor 4, the model of the temperature sensor 4 can be CWDZ11, one side of the interior of the separation tank 9 far away from the controller 6 IS provided with an electric telescopic rod 17, the top end of the electric telescopic rod 17 IS provided with a water level sensor 16, the model of the water level sensor 16 can be WH311, the top end of the base 20 at one side of the separation tank 9 far away from the discharging pipe 25 IS provided with a water collecting tank 18, the top end of the water collecting tank 18 IS provided with a water pump 14, the model of the water pump 14 can be IS50-32-125, the water pump 14 IS connected with commercial power through a lead, the water inlet of the water pump 14 IS communicated with the water outlet of the water suction disc 11 through a water suction pipe 13, the water outlet of the water pump, the output end of the controller 6 is electrically connected with the electric heating tube 21 and the input end of the electric cylinder 10 through wires.

The working principle is as follows: when the device is used, a power supply is connected, the mixed liquid of heparin sodium is poured into the separation tank 9, the separation tank 9 is closed, the stirring motor 23 and the double-shaft motor 27 are started through the controller 6, the stirring rod 2 and the helical blade 30 are driven to rotate bidirectionally through the stirring motor 23 and the double-shaft motor 27, so that the mixed liquid is fully stirred and dispersed, then the stirring motor 23 and the double-shaft motor 27 are closed, the dispersed heparin sodium is kept still and precipitated in the separation tank 9, after liquid is layered, the water level sensor 16 is moved to a proper position above the layered liquid level through the electric telescopic rod 17, the electric cylinder 10 and the water pump 14 are opened, the water pump 14 sucks and collects waste water at the top of the liquid into the water collecting tank 18 through the suction nozzle 35 and the water sucking disc 11, meanwhile, the electric cylinder 10 drives the water sucking disc 11 to move downwards until the waste water is sucked and removed to the liquid level where the water level sensor 16, and the signal is transmitted to the electric cylinder 10 through the controller 6, the electric cylinder 10 stops moving downwards, so that the problem that heparin sodium liquid medicine is sucked away due to the fact that the water sucking disc 11 continuously sucks water to cause loss of heparin sodium is effectively avoided, meanwhile, the water sucking disc 11 is retracted, the electric heating pipe 21 is opened, the rest of the precipitation liquid is heated, so that a small part of waste water remained above the layered liquid level after the heparin sodium is precipitated is evaporated and separated, evaporated water is discharged through the exhaust pipe 8, finally, the valve 1 is opened, and the precipitation liquid of the heparin sodium is discharged and collected through the discharge pipe 25.

The heparin sodium processing technology is characterized by comprising the following specific steps:

1) firstly, 2000kg of lung tissues and intestinal tissues of pigs, cattle and sheep are cut off fat and trachea sundries, weighed, cut into blocks by a meat grinder with the aperture of 1.5mm and minced into lung pulp.

2) 4000kg of water were added, the temperature was lowered to 10 ℃ and the pH was adjusted to 4.0 with 6mol/L hydrochloric acid, and the mixture was extracted for 20 hours.

3) Filtering the leaching solution with a filter screen, collecting filter residue ①, adding 200kg of 8% trichloroacetic acid solution into the filtrate, stirring for 5 min, filtering, collecting filter residue ②, adjusting the pH of the filtrate to 9.0, standing at 5 deg.C for 10 hr, removing solid substances from the liquid surface, and centrifuging with a separator for heparin sodium processing.

4) Mixing the collected filtrate and filter residue, adding 20kg of sodium chloride, stirring until the sodium chloride is dissolved, adding sodium hydroxide to adjust the pH to 8, heating to 60 ℃, keeping the temperature, stirring for 1 hour, heating to 100 ℃, cooling to 50 ℃, and starting filtering.

5) Adding 60kgD254 resin into the filtrate, adsorbing for 6-8 hours at 55 ℃, and filtering.

6) The filtered resin was eluted with 6mol/L NaCl at 60 ℃ for 2 hours and then washed with 2 mol/L NaCl for 3 times for 10 minutes each.

7) Mixing the eluent and the washing solution, namely adding 8mol/L hydrochloric acid to adjust the pH of the solution to 5, adding 550kg of 90% ethanol, stirring uniformly and standing for 24 hours; removing supernatant, dehydrating the precipitate with anhydrous ethanol for 3 times, dehydrating with acetone, vacuum drying in a vacuum oven, adding phosphorus pentoxide as desiccant, 400g each time, changing for 1 time every 12 hr, and vacuum drying for 48 hr to obtain heparin sodium crude product 500mg with titer of 88 IU/mg.

8) Putting 1000Kg of heparin sodium crude product and 800Kg of purified water into a stirring kettle for fully dissolving; adjusting the pH value of the obtained heparin sodium aqueous solution to 5.0, and cooling to 10 ℃; starting stirring, and dropwise adding 90% ethanol at-12 deg.C into the heparin sodium water solution under stirring condition until the ethanol concentration is 60%; after upper ethanol is siphoned, centrifugal separation and spin-drying are carried out; adding absolute ethyl alcohol until the concentration of the ethyl alcohol is 95%, and standing for more than 15 hours; after the ethanol on the upper layer is siphoned again, centrifuging the precipitate on the lower layer, and drying by spinning to obtain a heparin sodium wet product; drying the wet heparin sodium product at 38 ℃ for 72 hours under vacuum condition to obtain refined heparin sodium product.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

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