A production process of ammonia-free deproteinized medical natural latex by centrifugation once

Abstract

The present invention relates to the technical field of rubber processing, and more specifically, to a production process for centrifuging ammonia-free deproteinized medical natural latex once, wherein a fresh latex processing device is used to perform preliminary processing on the fresh latex, and after the fresh latex enters a latex separator through a conveying pipeline for centrifugal separation, a concentrated latex processing device performs final processing on the concentrated latex, and a whey recovery pipeline recovers the separated whey. In the production process for centrifuging ammonia-free deproteinized medical natural latex once, after the driving motor is started, it can drive the moving horizontal plate to move back and forth inside the fixed bin body, and while moving, the stirring blades can rotate synchronously to fully mix the concentrated latex and additives, thereby reducing the excessive input of the stirring motor, and at the same time, the power of the driving motor can be transmitted to the inside of the discharging device through the transmission part, thereby reducing the cost of the overall equipment.

Description

Technical Field

[0001] The invention relates to the technical field of rubber processing, in particular to a production process of ammonia-free deproteinized medical natural latex by centrifugation once. Background Art

[0002] Natural latex is a biosynthesized polymer water-based colloid system, whose main components are rubber hydrocarbons, water, and non-rubber substances, among which non-rubber substances are mainly composed of proteins, lipids, acetone soluble substances, water soluble substances, inorganic salts, etc. Nowadays, due to the increased awareness of people on the prevention of viral infections, the demand for natural latex products, especially natural latex gloves and condoms, has increased sharply, but people soon discovered that the use of natural latex products can cause an allergy. The first symptom is urticaria, followed by symptoms such as itchy skin and pimples. In severe cases, it can cause anaphylactic shock or even death. The main reason is the allergy caused by the protein contained in natural latex itself. Further research has found that the total residual amount of soluble protein in natural latex is positively correlated with the frequency and severity of allergic reactions. Therefore, the development of low-protein natural latex that is stable and has no allergic reactions to humans has become a hot research in today's latex industry.

[0003] The patent with publication number CN113429498B discloses a method for preparing a low-ammonia natural concentrated latex, which includes the following steps: S1 fresh latex pretreatment, S2 latex preservation, S3 centrifugation, S4 ammonia supplementation, to obtain a concentrated latex product with a low ammonia alkali content of about 0.15%. Under low ammonia conditions, the concentrated latex has stable performance, low volatile fatty acid value, reduced irritating odor, small viscosity change, mechanical stability of 1200s, zinc oxide mechanical stability of 251s, thermal stability of 65s, and all indicators of the concentrated latex meet the standard requirements, and it has a good application in the production of latex products for downstream latex products.

[0004] In the preparation process of existing medical natural latex, the latex after centrifugation needs to be added with relevant chemical materials again and mixed before it can be stored. In the existing latex production process, after the concentrated latex is collected in the concentrated latex collection tank, due to the long length of the tank body, it is often necessary to set up multiple sets of mixers to meet the stirring of the concentrated latex. At the same time, small-sized particles with a particle size of less than 0.15um may not be completely separated during the centrifugation process, and the additional setting of a filtering device will increase the overall investment cost.

[0005] In view of this, we propose a production process of ammonia-free deproteinized medical natural latex by centrifugation once. Summary of the invention

[0006] The object of the present invention is to provide a production process of ammonia-free deproteinized medical natural latex by centrifugation once, so as to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A production process of ammonia-free deproteinized medical natural latex by centrifugation once, comprising the following steps:

[0009] S1. First, fresh latex with a pH value in the range of 9.5-10.5 is added into a fresh latex processing device, and the fresh latex is stabilized with appropriate amounts of potassium laurate and sodium lauryl sulfate;

[0010] S2, then, add alkaline protease, a proper amount of TMTD promoter for fresh latex, and a proper amount of zinc oxide for fresh latex into the fresh latex processing device 100;

[0011] S3, while S2 is being added, the motor on the top of the fresh latex processing device is started, and after the fresh latex inside is fully stirred, the motor is turned off, and the stirred latex is subjected to static fermentation treatment;

[0012] S4, after waiting for 15-24 hours, the fresh latex in the fresh latex processing device is sent to the interior of the conveying pipeline;

[0013] S5, the fresh latex in the conveying pipeline enters the interior of the latex separator through the rubber tube at the bottom, and the latex separator is started at the same time to perform centrifugal separation on the fresh latex;

[0014] S6. The drum inside the latex separator rotates at a high speed, and the centrifugal force separates the latex, water and impurities of different specific gravities in the fresh latex. The concentrated latex flows freely from the upper cover leakage of the latex separator to the inside of the processing bin in the concentrated latex processing device, and the whey flows freely from the lower cover leakage of the latex separator to the whey recovery pipeline;

[0015] S7. After the latex separator stops working, add an appropriate amount of TMTD accelerator and an appropriate amount of zinc oxide to the interior of the fixed bin in the processing bin, and add an appropriate amount of potassium laurate and sodium dodecyl sulfate to stabilize the concentrated latex, and adjust the pH value of the latex to 9.5-10.5;

[0016] S8, starting the driving motor in the stirring device of the concentrated latex processing device to drive the rotating shaft to rotate;

[0017] S9, after the rotating shaft rotates, the limiting wheel and the guide wheel in the connecting part will move along the inside of one of the spiral grooves on the rotating shaft, and when moving to the end of one of the spiral grooves, they will enter the inside of another spiral groove;

[0018] S10, the rotating rod in the connecting part drives the movable horizontal plate to move back and forth inside the processing chamber;

[0019] S11, the rotating gear rotates after contacting with the fixed tooth plate in the processing chamber as the moving horizontal plate moves, thereby driving the stirring rod and the stirring blade to rotate;

[0020] S12. After ensuring that the concentrated latex and the subsequently added materials are evenly stirred, the toggle block in the rotating mechanism is toggled to drive the rotating roller to rotate between the two sealing covers, and one of the roller body through holes on the rotating roller is moved to the bottom of the connecting pipe;

[0021] S13, the concentrated latex is filtered through a microporous filter membrane placed in advance on the bottom hole wall of the roller body through hole, and finally flows into the inside of the discharge pipe;

[0022] S14, the power of the rotating shaft is transmitted to the central rod at the end of the conveying auger through the transmission part, and drives the conveying auger to rotate, and discharges the processed concentrated latex into the discharge pipe;

[0023] S15. After the concentrated latex production operation is started, the latex separator is repaired and maintained, and the toggle block in the rotating mechanism is toggled again to move another roller body through hole on the rotating roller to the bottom of the connecting pipe, and the microporous filter membrane on the bottom hole wall is replaced;

[0024] In the above steps, the fresh latex is preliminarily treated by the fresh latex treatment device. After the fresh latex enters the latex separator through the conveying pipeline for centrifugal separation, the concentrated latex is finally treated by the concentrated latex treatment device, and the separated whey is recovered by the whey recovery pipeline.

[0025] The concentrated latex processing device comprises a processing chamber, a stirring device arranged inside the processing chamber, a discharging device arranged below the stirring device, and a transmission part arranged between the stirring device and the discharging device;

[0026] The processing chamber comprises a fixed chamber body, a partition plate arranged inside the fixed chamber body, two fixed tooth plates symmetrically arranged at the inner side walls of the left and right ends of the fixed chamber body near the top, and a fixed guide rail arranged below the fixed tooth plates;

[0027] The stirring device comprises a driving motor, a rotating shaft that rotates when the driving motor is started, a moving horizontal plate arranged above the rotating shaft, a connecting portion arranged at the center of the moving horizontal plate, rotating gears arranged on the top surfaces of the left and right ends of the moving horizontal plate, a stirring rod that rotates as the rotating gears rotate, a stirring blade arranged at the bottom of the stirring rod, and a scraper arranged below the stirring blade;

[0028] The connecting part includes a rotating rod, a bending plate arranged below the rotating rod, a limiting wheel arranged at the center position of the bottom of the bending plate, and guide wheels arranged on both sides of the limiting wheel;

[0029] The discharging device comprises a discharging pipe, a plurality of connecting pipes regularly arranged on the top wall of the discharging pipe, a conveying auger arranged inside the discharging pipe, a rotating mechanism arranged between the discharging pipe and the connecting pipe, and sealing covers arranged at the upper and lower ends of the rotating mechanism;

[0030] The rotating mechanism comprises a rotating roller, a plurality of shifting blocks regularly arranged on the outer side wall of the rotating roller, pressure springs arranged in groups of two on the outer side walls at both ends of the rotating roller, and limiting protrusions arranged on the ends of the pressure springs.

[0031] In the technical solution of the present invention, a number of regularly distributed and inside-outside through-going feed troughs are provided on the left side outer wall of the fixed bin body, support bases are welded and fixed to the bottom surfaces of the left and right ends of the fixed bin body, the partition plate is welded and fixed to the inside of the fixed bin body, the fixed tooth plate and the fixed guide rail are both welded and fixed to the inner side wall of the fixed bin body, and limiting rods are welded and fixed to the outer side walls of the left and right ends of the fixed bin body near the center position.

[0032] In the technical solution of the present invention, the driving motor is fixedly connected to the outer wall of the fixed bin body by bolts, the front and rear ends of the rotating shaft are respectively rotatably connected to the outer walls of the front and rear ends of the fixed bin body, two symmetrically distributed spiral grooves are opened on the outer wall of the rotating shaft, and the bottom corners of the bottom surface of the movable horizontal plate are fixedly connected by screws with the bottom rollers slidably connected to the inside of the fixed guide rail.

[0033] In the technical solution of the present invention, the rotating rod is rotatably connected to the center position of the movable horizontal plate, the bending plate is welded and fixed to the bottom end of the rotating rod, the limiting wheel and the guide wheel are both clamped and fixed on the bottom surface of the bending plate, and the bottom ends of the limiting wheel and the guide wheel extend to the inside of the spiral groove.

[0034] In the technical solution of the present invention, the stirring rod is rotatably connected to the inside of the movable horizontal plate, the rotating gear is fixedly connected to the top end of the stirring rod by a bayonet, the rotating gear and the fixed tooth plate are meshed with each other, the stirring blade is fixedly connected to the bottom end of the stirring rod by bolts, and the convex rod at the bottom of the stirring blade is rotatably connected to the top surface of the scraper.

[0035] In the technical solution of the present invention, the front and rear ends of the discharge pipe are clamped and fixed on the outer side walls of the front and rear ends of the fixed bin body, the connecting pipe and the discharge pipe are integrally formed, and the conveying auger is rotatably connected to the inside of the discharge pipe.

[0036] In the technical solution of the present invention, two symmetrically arranged connecting holes are opened on the top surfaces of the left and right ends of the rotating roller, and placement holes are opened on the outer walls of the front and rear ends of the rotating roller. The toggle block welding machine is fixed on the outer wall of the rotating roller.

[0037] In the technical solution of the present invention, one end of the pressure spring is welded and fixed to the inner hole wall of the placement hole on the rotating roller, and the other end of the pressure spring is welded and fixed to the outer wall of the limiting protrusion, and the limiting protrusion is slidably connected to the inside of the placement hole on the rotating roller.

[0038] In the technical solution of the present invention, two symmetrically arranged cover body through grooves are opened on the top surfaces of the left and right ends of the sealing cover, and a number of regularly distributed and through-going limit holes are opened on the outer ring wall of the sealing cover. The sealing cover is welded and fixed to the connecting pipe.

[0039] In the technical solution of the present invention, the transmission part includes two sets of upper and lower pulleys arranged in parallel and a transmission belt sleeved between the two sets of pulleys. The upper pulley is fixedly connected to the end position of the rotating shaft by a pin, and the lower pulley is fixedly connected to the end position of the conveying auger by a pin.

[0040] Compared with the prior art, the present invention has the following beneficial effects:

[0041] 1. In the production process of ammonia-free deproteinized medical natural latex centrifuged once, after the driving motor is started, it can drive the moving cross plate to move back and forth inside the fixed bin, and while moving, the stirring blades can rotate synchronously to fully mix the concentrated latex and additives, reducing the excessive input of the stirring motor. At the same time, the power of the driving motor can be transmitted to the inside of the discharging device through the transmission part, thereby reducing the cost of the overall equipment.

[0042] 2. The production process of ammonia-free deproteinized medical natural latex centrifuged once changes the relative position of the connecting hole on the rotating roller and the connecting tube by changing the position of the rotating roller, so that the concentrated latex after the secondary treatment can pass through the microporous filter membrane on the hole wall at the bottom of the connecting hole, thereby filtering out the small rubber particles that cannot be completely separated from the latex, and ensuring the product performance of the latex when the latex enters the discharge pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0044] Figure 2 It is a partial structural schematic diagram of the present invention;

[0045] Figure 3It is a structural schematic diagram of the latex separator in the present invention;

[0046] Figure 4 It is a structural schematic diagram of the concentrated latex processing device in the present invention;

[0047] Figure 5 It is a schematic cross-sectional view of the structure of the concentrated latex processing device of the present invention;

[0048] Figure 6 It is a schematic cross-sectional view of the structure of the processing chamber in the present invention;

[0049] Figure 7 For the present invention Figure 6 The enlarged schematic diagram of part A in the middle;

[0050] Figure 8 It is a schematic diagram of the structure of the stirring device in the present invention;

[0051] Fig. 9 It is a structural schematic diagram of the connecting part in the present invention;

[0052] Fig.10 It is a schematic cross-sectional view of the structure of the discharging device in the present invention;

[0053] Fig.11 It is a structural schematic diagram of the rotating mechanism in the present invention;

[0054] Fig.12 It is a structural schematic diagram of the sealing cover in the present invention;

[0055] Fig.13 It is a structural schematic diagram of the transmission part in the present invention.

[0056] Description of reference numerals:

[0057] 100. Fresh latex processing device;

[0058] 200. Transportation pipeline;

[0059] 300. Latex separator;

[0060] 400, concentrated latex processing device; 410, processing chamber; 411, fixed chamber body; 4110, feeding trough; 412, supporting base; 413, partition plate; 414, fixed tooth plate; 415, fixed guide rail; 416, limiting rod; 420, stirring device; 421, driving motor; 422, rotating shaft; 4220, spiral groove; 423, moving horizontal plate; 4230, plate bottom roller; 424, connecting part; 4240, rotating rod; 4241, bending plate; 4242, limiting wheel; 42 43. guide wheel; 425. rotating gear; 426. stirring rod; 427. stirring blade; 428. scraper; 430. discharging device; 431. discharging pipe; 432. connecting pipe; 433. conveying auger; 434. rotating mechanism; 4340. rotating roller; 4341. toggle block; 4342. pressure spring; 4343. limiting convex block; 435. sealing cover; 4350. cover body through groove; 4351. limiting hole; 440. transmission part; 441. pulley; 442. transmission belt;

[0061] 500. Whey recovery pipeline. DETAILED DESCRIPTION

[0062] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0063] See also Figure 1-Figure 13 As shown, this embodiment provides a technical solution:

[0064] A production process of ammonia-free deproteinized medical natural latex by centrifugation once, comprising the following steps:

[0065] S1. First, fresh latex with a pH value in the range of 9.5-10.5 is added into the fresh latex processing device 100, and the fresh latex is stabilized with appropriate amounts of potassium laurate and sodium dodecyl sulfate;

[0066] S2, then, alkaline protease, a proper amount of TMTD accelerator for fresh latex, and a proper amount of zinc oxide for fresh latex are placed into the fresh latex processing device 100;

[0067] S3, while S2 is being added, the motor at the top of the fresh latex processing device 100 is started, and after the fresh latex inside is fully stirred, the motor is turned off, and the stirred latex is subjected to static fermentation treatment;

[0068] S4, after waiting for 15-24 hours, the fresh latex in the fresh latex processing device 100 is delivered to the interior of the delivery pipeline 200;

[0069] S5, the fresh latex in the conveying pipeline 200 enters the interior of the latex separator 300 through the rubber tube at the bottom, and the latex separator 300 is started at the same time to perform centrifugal separation on the fresh latex;

[0070] S6, the drum inside the latex separator 300 rotates at a high speed, and the centrifugal force separates the latex, water and impurities of different specific gravities in the fresh latex, and the concentrated latex freely flows from the upper cover leakage of the latex separator 300 to the inside of the processing bin 410 in the concentrated latex processing device 400, and the latex freely flows from the lower cover leakage of the latex separator 300 to the whey recovery pipeline 500;

[0071] S7, when the latex separator 300 stops working, add an appropriate amount of TMTD accelerator and an appropriate amount of zinc oxide to the concentrated latex inside the fixed bin body 411 in the processing bin 410, and stabilize the concentrated latex by adding an appropriate amount of potassium laurate and sodium dodecyl sulfate again, and adjust the pH value of the latex to 9.5-10.5;

[0072] S8, starting the driving motor 421 in the stirring device 420 in the concentrated latex processing device 400 to drive the rotating shaft 422 to rotate;

[0073] S9, after the rotating shaft 422 rotates, the limiting wheel 4242 and the guide wheel 4243 in the connecting portion 424 move along the inside of one of the spiral grooves 4220 on the rotating shaft 422, and when moving to the end of one of the spiral grooves 4220, enter the inside of another spiral groove 4220;

[0074] S10, the rotating rod 4240 in the connecting portion 424 drives the movable horizontal plate 423 to move back and forth inside the processing chamber 410;

[0075] S11, the rotating gear 425 rotates after contacting the fixed tooth plate 414 in the processing chamber 410 as the movable horizontal plate 423 moves, thereby driving the stirring rod 426 and the stirring blade 427 to rotate;

[0076] S12, after ensuring that the concentrated latex and the subsequently added materials are evenly stirred, the toggle block 4341 in the rotating mechanism 434 is toggled to drive the rotating roller 4340 to rotate between the two sealing covers 435, and one of the roller body through holes on the rotating roller 4340 is moved to the bottom of the connecting pipe 432;

[0077] S13, the concentrated latex is filtered through a microporous membrane filter placed in advance on the bottom wall of the roller through hole, and finally flows into the inside of the discharge pipe 431;

[0078] S14, the power of the rotating shaft 422 is transmitted to the central rod at the end of the conveying auger 433 through the transmission part 440, and drives the conveying auger 433 to rotate, and discharges the processed concentrated latex into the discharge pipe 431;

[0079] S15. After the concentrated latex production operation is started, the latex separator 300 is repaired and maintained, and the toggle block 4341 in the rotating mechanism 434 is toggled again to move another roller body through hole on the rotating roller 4340 to the bottom of the connecting pipe 432, and the microporous filter membrane on the bottom hole wall is replaced;

[0080] In this embodiment, Figure 1-Figure 3 As shown, the above steps use the fresh latex processing device 100 to perform preliminary processing on the fresh latex, and the fresh latex enters the latex separator 300 through the conveying pipeline 200 for centrifugal separation, and then the concentrated latex is finally processed by the concentrated latex processing device 400, and the separated whey is recovered by the whey recovery pipeline 500;

[0081] The fresh latex processing device 100 first stabilizes the fresh latex with potassium laurate and sodium dodecyl sulfate, and then stirs the fresh latex with alkaline protease, an appropriate amount of TMTD promoter for the fresh latex, and an appropriate amount of zinc oxide for the fresh latex. The conveying pipeline 200 is used to deliver the treated latex into the latex separator 300. The drum inside the latex separator 300 rotates at a high speed, and the latex, water and impurities of different specific gravities in the fresh latex are separated by centrifugal force.

[0082] In this embodiment, Figure 4-Figure 13 As shown, the concentrated latex processing device 400 includes a processing chamber 410, a stirring device 420 disposed inside the processing chamber 410, a discharging device 430 disposed below the stirring device 420, and a transmission part 440 disposed between the stirring device 420 and the discharging device 430;

[0083] Specifically, the processing chamber 410 includes a fixed chamber body 411, a partition plate 413 arranged inside the fixed chamber body 411, two fixed tooth plates 414 symmetrically arranged at the inner walls of the left and right ends of the fixed chamber body 411 near the top position, and a fixed guide rail 415 arranged below the fixed tooth plate 414.

[0084] Furthermore, a number of regularly distributed and inside-outside through-going feed troughs 4110 are provided on the left side outer wall of the fixed bin body 411, support bases 412 are welded and fixed to the bottom surfaces of the left and right ends of the fixed bin body 411, partition plates 413 are welded and fixed to the inside of the fixed bin body 411, fixed tooth plates 414 and fixed guide rails 415 are both welded and fixed to the inner side wall of the fixed bin body 411, and limiting rods 416 are welded and fixed to the outer side walls of the left and right ends of the fixed bin body 411 near the center position.

[0085] Furthermore, the fixed bin body 411 is used to ensure the fixing strength of the processing bin 410, the partition plate 413 is used to provide a closed area for the processing of concentrated latex, the fixed tooth plate 414 is used to contact the structure in the stirring device 420, and the limit rod 416 is used to limit the movement range of the internal structure of the stirring device 420.

[0086] In this embodiment, Figure 8-Figure 9 As shown, the stirring device 420 includes a driving motor 421, a rotating shaft 422 that rotates when the driving motor 421 is started, a moving horizontal plate 423 disposed above the rotating shaft 422, a connecting portion 424 disposed at the center of the moving horizontal plate 423, rotating gears 425 disposed on the top surfaces of the left and right ends of the moving horizontal plate 423, a stirring rod 426 that rotates as the rotating gear 425 rotates, a stirring blade 427 disposed at the bottom of the stirring rod 426, and a scraper 428 disposed below the stirring blade 427;

[0087] Specifically, the connecting portion 424 includes a rotating rod 4240 , a bending plate 4241 disposed below the rotating rod 4240 , a limiting wheel 4242 disposed at the bottom center of the bending plate 4241 , and guide wheels 4243 disposed on both sides of the limiting wheel 4242 .

[0088] Furthermore, the driving motor 421 is fixedly connected to the outer wall of the fixed bin body 411 by bolts, and the front and rear ends of the rotating shaft 422 are respectively rotatably connected to the outer walls of the front and rear ends of the fixed bin body 411. Two symmetrically distributed spiral grooves 4220 are opened on the outer wall of the rotating shaft 422, and the bottom corners of the bottom surface of the movable cross plate 423 are fixedly connected by screws with the bottom roller 4230 that is slidably connected to the inside of the fixed guide rail 415.

[0089] Furthermore, the rotating rod 4240 is rotatably connected to the center position of the movable horizontal plate 423, the bending plate 4241 is welded and fixed to the bottom end of the rotating rod 4240, the limiting wheel 4242 and the guide wheel 4243 are both clamped and fixed on the bottom surface of the bending plate 4241, and the bottom ends of the limiting wheel 4242 and the guide wheel 4243 extend to the interior of the spiral groove 4220.

[0090] Furthermore, the stirring rod 426 is rotatably connected to the inside of the movable horizontal plate 423, the rotating gear 425 is fixedly connected to the top of the stirring rod 426 by a pin, the rotating gear 425 and the fixed tooth plate 414 are meshed with each other, the stirring blade 427 is fixedly connected to the bottom end of the stirring rod 426 by bolts, and the convex rod at the bottom of the stirring blade 427 is rotatably connected to the top surface of the scraper 428.

[0091] Furthermore, after the driving motor 421 is started, it drives the rotating shaft 422 to rotate, and the limiting wheel 4242 and the guide wheel 4243 in the connecting part 424 will move along one of the spiral grooves 4220 on the rotating shaft 422, and when moving to the end of one of the spiral grooves 4220, they will enter the inside of the other spiral groove 4220, and the rotating rod 4240 will drive the moving cross plate 423 to move back and forth inside the processing chamber 410. The rotating gear 425 rotates after contacting the fixed tooth plate 414 in the processing chamber 410 as the moving cross plate 423 moves, thereby driving the stirring rod 426 and the stirring blade 427 to rotate.

[0092] In this embodiment, Figure 10-12 As shown, the discharge device 430 includes a discharge pipe 431, a plurality of connecting pipes 432 regularly arranged on the top pipe wall of the discharge pipe 431, a conveying auger 433 arranged inside the discharge pipe 431, a rotating mechanism 434 arranged between the discharge pipe 431 and the connecting pipe 432, and sealing covers 435 arranged at the upper and lower ends of the rotating mechanism 434;

[0093] Specifically, the rotating mechanism 434 includes a rotating roller 4340, a plurality of toggle blocks 4341 regularly arranged on the outer wall of the rotating roller 4340, pressure springs 4342 arranged in groups of two on the outer walls at the front and rear ends of the rotating roller 4340, and a limiting protrusion 4343 arranged at the end of the pressure spring 4342.

[0094] Furthermore, the front and rear ends of the discharge pipe 431 are clamped and fixed to the outer side walls of the front and rear ends of the fixed bin body 411 , the connecting pipe 432 and the discharge pipe 431 are integrally formed, and the conveying auger 433 is rotatably connected to the inside of the discharge pipe 431 .

[0095] Furthermore, two symmetrically arranged connecting holes that penetrate up and down are opened on the top surfaces of the left and right ends of the rotating roller 4340, and placement holes are opened on the outer walls of the front and rear ends of the rotating roller 4340, and the toggle block 4341 welding machine is fixed on the outer wall of the rotating roller 4340.

[0096] Furthermore, one end of the pressure spring 4342 is welded and fixed to the inner hole wall of the placement hole on the rotating roller 4340, and the other end of the pressure spring 4342 is welded and fixed to the outer wall of the limiting protrusion 4343, and the limiting protrusion 4343 is slidably connected to the inside of the placement hole on the rotating roller 4340.

[0097] Furthermore, two symmetrically arranged cover body through grooves 4350 are opened on the top surfaces of the left and right ends of the sealing cover 435, and a plurality of regularly distributed and internally and externally through limiting holes 4351 are opened on the outer ring wall of the sealing cover 435. The sealing cover 435 is welded and fixed to the connecting pipe 432.

[0098] Furthermore, after ensuring that the concentrated latex and the subsequently added materials are evenly stirred, the toggle block 4341 in the rotating mechanism 434 is toggled to drive the rotating roller 4340 to rotate between the two sealing covers 435, and one of the roller body through holes on the rotating roller 4340 is moved to the bottom of the connecting pipe 432. The concentrated latex is filtered through a microporous membrane filter placed in advance on the bottom hole wall of the roller body through hole, and finally flows into the inside of the discharge pipe 431. The power of the rotation of the rotating shaft 422 will be transmitted to the center rod at the end of the conveying auger 433 through the transmission part 440, and drive the conveying auger 433 to rotate, and the processed concentrated latex is discharged from the inside of the discharge pipe 431.

[0099] In this embodiment, Fig.13 As shown, the transmission part 440 includes two sets of upper and lower pulleys 441 arranged in parallel and a transmission belt 442 sleeved between the two sets of pulleys 441. The upper pulley 441 is fixedly connected to the end position of the rotating shaft 422 by a bayonet, and the lower pulley 441 is fixedly connected to the end position of the conveying auger 433 by a bayonet.

[0100] Furthermore, the upper pulley 441 rotates while the rotating shaft 422 rotates, and drives the lower pulley 441 to rotate through the transmission belt 442 , thereby driving the conveying auger 433 to rotate.

[0101] The foregoing description of specific exemplary embodiments of the present invention is for the purpose of illustration and demonstration. These descriptions are not intended to limit the present invention to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing exemplary embodiments is to explain the specific principles of the present invention and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the present invention and various different selections and changes. The scope of the present invention is intended to be limited by the specification and its equivalents.

Claims

1. A production process of ammonia-free deproteinized medical natural latex by centrifugation once, characterized in that: The following steps are involved: S1. First, fresh latex with a pH value in the range of 9.5-10.5 is added to the fresh latex processing device (100), and the fresh latex is stabilized with appropriate amounts of potassium laurate and sodium dodecyl sulfate; S2, then, alkaline protease, a proper amount of TMTD accelerator for fresh latex, and a proper amount of zinc oxide for fresh latex are placed into the fresh latex processing device 100; S3, while S2 is being added, starting the motor on the top of the fresh latex processing device (100), after fully stirring the fresh latex inside, turning off the motor, and subjecting the stirred latex to static fermentation treatment; S4, after waiting for 15-24 hours, the fresh latex in the fresh latex processing device (100) is sent into the interior of the conveying pipeline (200); S5, the fresh latex in the conveying pipeline (200) enters the interior of the latex separator (300) through the rubber tube at the bottom, and the latex separator (300) is started at the same time to perform centrifugal separation on the fresh latex; S6, the drum inside the latex separator (300) rotates at a high speed, and the centrifugal force separates the latex, water and impurities of different specific gravities in the fresh latex, and the concentrated latex freely flows from the upper cover leakage of the latex separator (300) to the inside of the processing bin (410) in the concentrated latex processing device (400), and the latex freely flows from the lower cover leakage of the latex separator (300) to the whey recovery pipeline (500); S7, when the latex separator (300) stops working, add an appropriate amount of TMTD accelerator and an appropriate amount of zinc oxide to the concentrated latex into the interior of the fixed bin body (411) in the processing bin (410), and stabilize the concentrated latex by adding an appropriate amount of potassium laurate and sodium dodecyl sulfate again, and adjust the pH value of the latex to 9.5-10.5; S8, starting the driving motor (421) in the stirring device (420) in the concentrated latex processing device (400) to drive the rotating shaft (422) to rotate; S9, after the rotating shaft (422) rotates, the limiting wheel (4242) and the guide wheel (4243) in the connecting portion (424) move along the inside of one of the spiral grooves (4220) on the rotating shaft (422), and when moving to the end of one of the spiral grooves (4220), enter the inside of another spiral groove (4220); S10, the rotating rod (4240) in the connecting part (424) drives the movable horizontal plate (423) to move back and forth inside the processing chamber (410); S11, the rotating gear (425) rotates after contacting the fixed tooth plate (414) in the processing chamber (410) as the movable horizontal plate (423) moves, thereby driving the stirring rod (426) and the stirring blade (427) to rotate; S12, after ensuring that the concentrated latex and the subsequently added materials are evenly stirred, the toggle block (4341) in the rotating mechanism (434) is toggled to drive the rotating roller (4340) to rotate between the two sealing covers (435), and one of the roller body through holes on the rotating roller (4340) is moved to the bottom of the connecting pipe (432); S13, the concentrated latex is filtered through a microporous filter membrane filter placed in advance on the bottom hole wall of the roller body through hole, and finally flows into the inside of the discharge pipe (431); S14, the power of the rotation of the rotating shaft (422) is transmitted to the central rod at the end of the conveying auger (433) through the transmission part (440), and drives the conveying auger (433) to rotate, thereby discharging the processed concentrated latex into the discharge pipe (431); S15. After the concentrated latex production operation is started, the latex separator (300) is inspected and maintained, and the toggle block (4341) in the rotating mechanism (434) is toggled again to move another roller body through hole on the rotating roller (4340) to the bottom of the connecting pipe (432), and the microporous filter membrane on the bottom hole wall is replaced; In the above steps, the fresh latex is preliminarily treated by the fresh latex treatment device (100), and the fresh latex enters the latex separator (300) through the conveying pipeline (200) for centrifugal separation, and then the concentrated latex is finally treated by the concentrated latex treatment device (400), and the separated whey is recovered by the whey recovery pipeline (500); The concentrated latex processing device (400) comprises a processing chamber (410), a stirring device (420) disposed inside the processing chamber (410), a discharging device (430) disposed below the stirring device (420), and a transmission part (440) disposed between the stirring device (420) and the discharging device (430); The processing chamber (410) comprises a fixed chamber body (411), a partition plate (413) arranged inside the fixed chamber body (411), two fixed tooth plates (414) symmetrically arranged at the inner side walls of the left and right ends of the fixed chamber body (411) near the top, and a fixed guide rail (415) arranged below the fixed tooth plates (414); The stirring device (420) comprises a driving motor (421), a rotating shaft (422) that rotates when the driving motor (421) is started, a moving horizontal plate (423) arranged above the rotating shaft (422), a connecting portion (424) arranged at the center of the moving horizontal plate (423), a rotating gear (425) arranged on the top surfaces of the left and right ends of the moving horizontal plate (423), a stirring rod (426) that rotates when the rotating gear (425) rotates, a stirring blade (427) arranged at the bottom of the stirring rod (426), and a scraper (428) arranged below the stirring blade (427); The front and rear ends of the rotating shaft (422) are rotatably connected to the outer side walls of the front and rear ends of the fixed bin body (411), and two symmetrically distributed spiral grooves (4220) are provided on the outer side wall of the rotating shaft (422). The bottom corners of the bottom surface of the movable horizontal plate (423) are fixedly connected by screws with bottom rollers (4230) slidably connected to the inside of the fixed guide rail (415); The connecting portion (424) comprises a rotating rod (4240), a bending plate (4241) arranged below the rotating rod (4240), a limiting wheel (4242) arranged at the center of the bottom of the bending plate (4241), and guide wheels (4243) arranged on both sides of the limiting wheel (4242); The rotating rod (4240) is rotatably connected to the center position of the movable horizontal plate (423); the bending plate (4241) is welded and fixed to the bottom end of the rotating rod (4240); the limiting wheel (4242) and the guide wheel (4243) are both clamped and fixed on the bottom surface of the bending plate (4241); and the bottom ends of the limiting wheel (4242) and the guide wheel (4243) extend to the inside of the spiral groove (4220); The stirring rod (426) is rotatably connected to the inside of the movable horizontal plate (423), the rotating gear (425) is fixedly connected to the top of the stirring rod (426) by a bayonet, the rotating gear (425) and the fixed tooth plate (414) are meshed with each other, the stirring blade (427) is fixedly connected to the bottom end of the stirring rod (426) by a bolt, and the protruding rod at the bottom of the stirring blade (427) is rotatably connected to the top surface of the scraper (428); The discharging device (430) comprises a discharging pipe (431), a plurality of connecting pipes (432) regularly arranged on the top pipe wall of the discharging pipe (431), a conveying auger (433) arranged inside the discharging pipe (431), a rotating mechanism (434) arranged between the discharging pipe (431) and the connecting pipe (432), and sealing covers (435) arranged at the upper and lower ends of the rotating mechanism (434); The rotating mechanism (434) comprises a rotating roller (4340), a plurality of shifting blocks (4341) regularly arranged on the outer side wall of the rotating roller (4340), pressure springs (4342) arranged in groups of two on the outer side walls at the front and rear ends of the rotating roller (4340), and a limiting protrusion (4343) arranged at the end of the pressure spring (4342); Two through holes are symmetrically arranged and penetrate vertically on the top surfaces of the left and right ends of the rotating roller (4340), and placement holes are opened on the outer side walls of the front and rear ends of the rotating roller (4340); One end of the pressure spring (4342) is welded and fixed to the inner wall of the placement hole on the rotating roller (4340), and the other end of the pressure spring (4342) is welded and fixed to the outer wall of the limiting protrusion (4343), and the limiting protrusion (4343) is slidably connected to the inside of the placement hole on the rotating roller (4340); Two symmetrically arranged cover body through grooves (4350) are provided on the top surfaces at the left and right ends of the sealing cover (435), and a plurality of regularly distributed and internally and externally connected limiting holes (4351) are provided on the outer ring wall of the sealing cover (435). The sealing cover (435) is fixed to the connecting pipe (432) by welding.

2. The production process of ammonia-free deproteinized medical natural latex by centrifugation once according to claim 1, characterized in that: A plurality of regularly distributed and internally-through feed troughs (4110) are provided on the left side outer wall of the fixed bin body (411); support bases (412) are welded and fixed to the bottom surfaces of the left and right ends of the fixed bin body (411); the partition plate (413) is welded and fixed to the inside of the fixed bin body (411); the fixed tooth plate (414) and the fixed guide rail (415) are both welded and fixed to the inner side wall of the fixed bin body (411); and limiting rods (416) are welded and fixed near the center position of the left and right outer side walls of the fixed bin body (411).

3. The production process of ammonia-free deproteinized medical natural latex by centrifugation once according to claim 1, characterized in that: The driving motor (421) is fixedly connected to the outer side wall of the fixed bin body (411) by means of bolts.

4. The production process of ammonia-free deproteinized medical natural latex by centrifugation once according to claim 1, characterized in that: The front and rear ends of the discharge pipe (431) are fixedly connected to the outer side walls of the front and rear ends of the fixed bin body (411), and the conveying auger (433) is rotatably connected to the inside of the discharge pipe (431).

5. The production process of ammonia-free deproteinized medical natural latex by centrifugation once according to claim 1, characterized in that: The shifting block (4341) is welded and fixed on the outer side wall of the rotating roller (4340).

6. The production process of ammonia-free deproteinized medical natural latex by centrifugation once according to claim 1, characterized in that: The transmission part (440) includes two sets of upper and lower pulleys (441) arranged in parallel and a transmission belt (442) sleeved between the two sets of pulleys (441), the upper pulley (441) is fixedly connected to the end position of the rotating shaft (422) by a bayonet, and the lower pulley (441) is fixedly connected to the end position of the conveying auger (433) by a bayonet.

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