CN115055253A - Raw material pretreatment device and method for producing natural polysaccharide-based medical antibacterial hydrocolloid dressing - Google Patents

Abstract

The invention belongs to the technical field of antibacterial dressings, and particularly relates to a raw material pretreatment device and a raw material pretreatment method for production of a natural polysaccharide-based medical antibacterial hydrocolloid dressing. The raw material pretreatment device provided by the invention is of an integrated structure, has reasonable structural layout, has the advantages of small occupied space and simple process flow, is scientific in partition of the separation device in the pretreatment device, can realize rapid separation of hemicellulose and cellulose, and can store the separated hemicellulose and cellulose in a classified manner, so that the obtained cellulose product can be directly used as a raw material for producing a natural polysaccharide-based medical antibacterial hydrocolloid dressing.

Description

Raw material pretreatment device for production of natural polysaccharide-based medical antibacterial hydrocolloid dressing and method

technical field

The invention belongs to the technical field of antibacterial dressings, and in particular relates to a raw material pretreatment device and method for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings.

Background technique

Hydrocolloid dressing is a new type of wound care dressing, which can adapt to a variety of clinical wounds with tissue exudation. Compared with traditional dressings, hydrocolloid dressings have the following advantages: it can maintain the moist microenvironment of the wound surface for a long time, and promote wound healing; it can continuously absorb exudate, reduce the number of dressing changes, and reduce the secondary trauma caused by dressing changes. ; Completely cover the wound surface, isolate bacteria and reduce the risk of wound infection. Wound infection is the most serious disturbance factor in the process of wound healing. The growth of bacteria makes the wound deepen, abscesses, etc., and even lead to severe symptoms such as sepsis and sepsis, which are life-threatening. Traditional hydrocolloid dressings have no antibacterial function and can only reduce the contact between the wound and the outside world through physical barrier, thereby reducing wound infection. However, the effect is not ideal when used on wounds with potential infection risk or already infected. To this end, antibacterial hydrocolloid dressings have emerged.

Natural polysaccharide-based medical antibacterial hydrocolloid dressing is a kind of antibacterial hydrocolloid dressing. Its raw materials are mainly natural polysaccharides and inorganic antibacterial materials, among which natural polysaccharides are mainly cellulose, and straw is a raw material for obtaining cellulose. The existing raw material pretreatment devices for obtaining raw cellulose for natural polysaccharide-based medical antibacterial hydrocolloid dressings from straw have shortcomings. First, they have a complex structure, occupy a large volume, and have a cumbersome process flow. Second, they lack the ability to realize hemicellulose. Separation device for rapid separation of cellulose and cellulose. Therefore, it needs to be optimized and improved.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the above problems existing in the prior art, and to provide a raw material pretreatment device and method for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings.

In order to realize the above-mentioned technical purpose and achieve the above-mentioned technical effect, the present invention is realized through the following technical solutions:

The invention provides a raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings. The device includes an integrated treatment box, and a cover plate with a feeding port is installed on the upper end of the integrated treatment box. A pulverizing kettle is installed under the box under the cover plate, and a pulverizing mechanism for pulverizing the straw raw materials in the pulverizing kettle is installed on the cover plate. A separation mechanism for separating cellulose, the integrated treatment box is provided with a hot water chamber between the separation mechanism and the pulverizing kettle, and the integrated treatment box is located below the separation mechanism with a hemicellulose for collecting hemicellulose Collection chamber and cellulose collection chamber for collecting cellulose.

Further, in the above-mentioned raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings, the pulverizing mechanism includes a first motor, a stirring shaft, a stirring rod, a cutter rod and a feeding screw blade, and the first motor is fixed. On the upper side of the cover plate, the output shaft of the first motor is fixed with a stirring shaft extending into the pulverizing kettle through a coupling, and the shaft body of the stirring shaft is sequentially fixed from top to bottom with a stirring rod, a cutter rod and For the feeding screw blade, the inner cavity of the crushing kettle is sequentially divided into a stirring area matched with the stirring rod, a crushing area matched with the cutter rod, and a blanking area matched with the feeding screw blade.

Further, in the above-mentioned raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings, the separation mechanism includes a casing, and the interior of the casing is provided with a water inlet area, a low-temperature cooking area, a high-temperature cooking area, and a water inlet area, a low-temperature cooking area, a high-temperature cooking area, and a slanted design. The cooking zone and the separation zone, the water inlet zone, the low-temperature cooking zone, the high-temperature cooking zone and the separation zone are each provided with a screw blade shaft, and a gear is fixed at the end of the rod body extending out of the zone where the screw blade shaft is located. The two gears mesh with each other, the casing is located on the upper side of the middle of the water inlet area, and is provided with a material guide port that communicates with the feeding pipe in the crushing kettle, and is located above the low end of the water inlet area. A water hole, the casing is located at the lower side of the low end of the separation zone and is provided with a drain port for communication with the hemicellulose collection chamber, and is located at the lower side of the high end of the separation zone is provided with a discharge pipe for communication with the cellulose collection chamber .

Further, in the above-mentioned raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings, the outer shell is inclined in both the horizontal direction and the vertical direction, the water inlet area is located at a high position, and the separation area is located at a low position. place.

Further, in the above-mentioned raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings, the lower ends of the water inlet area and the low temperature cooking area are connected with each other, and the high end of the low temperature cooking area and the high temperature cooking area are connected. The high temperature cooking zone and the lower end of the separation zone are communicated with each other.

Further, in the above-mentioned raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings, the rod body in which one of the screw blade shafts extends out of the area where the The motor is fixed with the integrated processing box.

Further, in the above-mentioned raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings, the pitch of the screw blade shaft in the water inlet zone and the low temperature cooking zone is the first screw pitch, and the screw blade shaft in the high temperature cooking zone is the first screw pitch. The pitch is the second pitch, the pitch of the screw blade shaft in the separation zone is the third pitch, the first pitch is greater than the second pitch, the third pitch is the gradual pitch, and its maximum value is less than or equal to the second pitch .

Further, in the above-mentioned raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings, the casing is provided with a first heater on the lower side of the low-temperature cooking zone, and a second heater is positioned on the lower side of the high-temperature cooking zone. , the temperature of the hot water in the hot water chamber is controlled at 40-50°C, the temperature in the low-temperature cooking zone is controlled at 55-65°C, and the temperature in the high-temperature cooking zone is controlled at 80-90°C.

Further, in the above-mentioned raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings, the side part of the integrated treatment box is provided with a water replenishing pipe connected with the hot water chamber, and a liquid suction pipe connected with the hemicellulose collection chamber. A pipe, and a cleaning pipe communicated with the cellulose collection chamber, valves are installed on the water replenishing pipe and the liquid suction pipe, and an openable blocking cover is installed on the nozzle of the cleaning pipe.

The present invention also provides a raw material pretreatment method for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings, which is realized based on the above-mentioned device and includes the following steps:

1) Put the straw into the pulverizing kettle of the integrated treatment box, use the pulverizing mechanism to pulverize the straw, and transport the pulverized raw materials to the separation device;

2) The pulverized raw material and hot water at 40-50°C are introduced into the water inlet area of the separation device, mixed and transferred to the low-temperature cooking zone at 60-80°C for low-temperature cooking, and then transferred to the high-temperature cooking zone at 80-90°C. High-temperature cooking, and finally transferred to the separation zone, where the hemifiber filtrate is diverted to the hemicellulose collection chamber for storage, and the cellulose product is transferred to the cellulose collection chamber for storage.

The beneficial effects of the present invention are:

The raw material pretreatment device provided by the invention is of an integrated structure, with reasonable structure and layout, and has the advantages of small occupied space and simple process flow. The hemicellulose and cellulose are classified and stored, and the obtained cellulose products can be directly used as raw materials for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings.

Of course, it is not necessary for any product implementing the present invention to achieve all of the above advantages simultaneously.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the following briefly introduces the accompanying drawings used in the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained from these drawings without any creative effort.

Fig. 1 is the overall structural representation of the present invention;

Fig. 2 is the internal structure diagram of separating mechanism in the present invention;

Fig. 3 is the top view structure diagram of separating mechanism in the present invention;

Fig. 4 is the bottom view structure diagram of separating mechanism in the present invention;

In the accompanying drawings, the list of components represented by each number is as follows:

1-integrated processing box, 2-cover plate, 3-feeding port, 4-grinding kettle, 5-separation mechanism, 501-shell, 502-water inlet area, 503-low temperature cooking area, 504-high temperature cooking area, 505 -Separation zone, 506-through hole, 507-screw blade shaft, 508-gear, 509-material guide port, 510-water guide hole, 511-liquid discharge port, 512-discharge pipe, 513-first heater, 514-2nd heater, 6-1st motor, 7-stirring shaft, 8-stirring rod, 9-cutter rod, 10-cutting screw blade, 11-2nd motor, 12-hot water chamber, 13- Water supply pipe, 14- hemicellulose collection chamber, 15- cellulose collection chamber, 16- suction pipe, 17- clearing pipe.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

As shown in Figures 1-4, the present embodiment is a raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings. The cover plate 2 of the mouth 3, the integrated processing box 1 is located below the cover plate 2 and a pulverizing kettle 4 is installed. The crushing mechanism includes a first motor 6, a stirring shaft 7, a stirring rod 8, a cutter rod 9 and a blanking screw blade 10. The first motor 6 is fixed on the upper side of the cover plate 2, and the output shaft of the first motor 6 is coupled through the shaft. The mixer is fixed with a stirring shaft 7 extending into the crushing kettle 4. The shaft body of the stirring shaft 7 is sequentially fixed with a stirring rod 8, a cutter rod 9 and a blanking screw blade 10 from top to bottom. The inner cavity of the crushing kettle 4 is divided into The stirring area matched with the stirring rod 8 , the crushing area matched with the cutter rod 9 , and the blanking area matched with the blanking screw blade 10 .

In this embodiment, the integrated treatment box 1 is installed below the pulverizing kettle 4 with a separation mechanism 5 for separating hemicellulose and cellulose, and the integrated treatment box 1 is located between the separation mechanism 5 and the pulverizing kettle 4 with a heat The water chamber 12 and the integrated treatment box 1 are located below the separation mechanism 5 and are provided with a hemicellulose collection chamber 14 for collecting hemicellulose and a cellulose collection chamber 15 for collecting cellulose.

In this embodiment, the separation mechanism 5 includes a housing 501, and the interior of the housing 501 is provided with a water inlet area 502, a low-temperature cooking area 503, a high-temperature cooking area 504, and a separation area 505, which are slanted and connected in a staggered manner. The cooking zone 503, the high-temperature cooking zone 504 and the separation zone 505 are each provided with a screw shaft 507, a gear 508 is fixed at the end of the rod body where the screw shaft 507 extends out of the zone, and two adjacent gears 508 mesh with each other. The shell 501 is located on the upper side of the middle of the water inlet area 502, and is provided with a material guide port 509 that communicates with the feeding pipe in the crushing kettle 4, and is located above the lower end of the water inlet area 502. There is a water guide hole for communication with the hot water chamber 12. 510. The casing 501 is located on the lower side of the low end of the separation area 505 and is provided with a liquid discharge port 511 for communicating with the hemicellulose collection chamber 14, and is located on the lower side of the high end of the separation area 505. There is a discharge port 511 for communicating with the cellulose collection chamber 15. Tube 512.

In this embodiment, the housing 501 is inclined in both the horizontal direction and the vertical direction, the water inlet area 502 is located at a high position, and the separation area 505 is located at a low position. The lower ends of the water inlet zone 502 and the low temperature cooking zone 503 are connected with each other, the high end ends of the low temperature cooking zone 503 and the high temperature cooking zone 504 are communicated with each other, and the lower ends of the high temperature cooking zone 504 and the separation zone 505 are communicated with each other, A through hole 506 is provided at the communication portion.

In this embodiment, one of the screw blade shafts 507 extends out of the rod body in the area where the rod body is driven and connected to the rotating shaft of the second motor 11 through the pulley, and the second motor 11 is fixed to the integrated processing box 1 .

In this embodiment, the pitch of the screw shaft 507 in the water inlet zone 502 and the low-temperature cooking zone 503 is the first pitch, the screw pitch of the screw shaft 504 in the high-temperature cooking zone is the second pitch, and the screw shaft 507 in the separation zone 505 has the second pitch. The pitch is a third pitch, the first pitch is greater than the second pitch, the third pitch is a gradual pitch, and the maximum value thereof is less than or equal to the second pitch.

In this embodiment, the casing 501 is provided with a first heater 513 on the lower side of the low-temperature cooking zone 503 , and a second heater 514 is positioned on the lower side of the high-temperature cooking zone 504 . The temperature of the hot water in the hot water chamber 12 is controlled at 40-50°C, the temperature in the low-temperature cooking zone 503 is controlled at 55-65°C, and the temperature in the high-temperature cooking zone 504 is controlled at 80-90°C.

In this embodiment, the side of the integrated treatment tank 1 is provided with a water supply pipe 13 communicating with the hot water chamber 12 , a liquid suction pipe 16 communicating with the hemicellulose collection chamber 14 , and a cellulose collection chamber 15 with a water supply pipe 16 . Clear the tube 17. Valves are installed on the water supply pipe 13 and the liquid suction pipe 16 , and an openable blocking cover is installed on the nozzle of the cleaning pipe 17 .

The raw material pretreatment method for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings comprises the following steps:

1) Put the straws into the crushing kettle 4 of the integrated processing box 1, use the crushing mechanism to crush the straws, and transport the crushed raw materials to the separation device;

2) The water inlet zone 502 of the separation device 5 introduces the pulverized material raw material and hot water at 40-50°C, and after mixing, it is transferred to the low-temperature cooking zone 503 at 60-80°C for low-temperature cooking, and then transferred to the high-temperature cooking at 80-90°C. High temperature cooking is performed in zone 504, and finally transferred to separation zone 505, where the hemicellulose filtrate is directed to the hemicellulose collection chamber 14 for storage, and the cellulose product 15 is transferred to the cellulose collection chamber for storage.

The raw material pretreatment device provided in this embodiment is an integrated structure, with a reasonable structure and layout, and has the advantages of small occupied space and simple process flow. The separated hemicellulose and cellulose are classified and stored, and the obtained cellulose product can be directly used as a raw material for the production of a natural polysaccharide-based medical antibacterial hydrocolloid dressing.

The above-disclosed preferred embodiments of the present invention are provided only to help illustrate the present invention. The preferred embodiments do not exhaust all the details, nor do they limit the invention to specific embodiments only. Obviously, many modifications and variations are possible in light of the content of this specification. The present specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is to be limited only by the claims and their full scope and equivalents.

Claims (10)

1. The raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings is characterized in that: the device comprises an integrated processing box, and the upper end of the integrated processing box is provided with a cover plate with a feeding port, and the integrated processing box is provided with a cover plate with a feeding port. A pulverizing kettle is installed under the processing box under the cover plate, and a pulverizing mechanism for pulverizing the straw raw materials in the pulverizing kettle is installed on the cover plate. A separation mechanism for separating from cellulose, the integrated treatment box is provided with a hot water chamber between the separation mechanism and the pulverizing kettle, and the integrated treatment box is located below the separation mechanism with a hemifiber for collecting hemicellulose A cellulose collection chamber and a cellulose collection chamber for collecting cellulose. 2. The raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings according to claim 1, wherein the pulverizing mechanism comprises a first motor, a stirring shaft, a stirring rod, a cutter rod and a feeding screw Leaf, the first motor is fixed on the upper side of the cover plate, the output shaft of the first motor is fixed with a stirring shaft extending into the crushing kettle through a coupling, and the shaft body of the stirring shaft is fixed in sequence from top to bottom There are a stirring rod, a cutting rod and a feeding screw blade, and the inner cavity of the crushing kettle is sequentially divided into a stirring area matched with the stirring rod, a crushing area matched with the cutting rod, and a blanking area matched with the cutting screw blade. . 3. The raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings according to claim 1, characterized in that: the separation mechanism comprises an outer shell, and the inside of the outer shell is provided with inlets with inclined design and staggered communication side by side. The water zone, the low-temperature cooking zone, the high-temperature cooking zone and the separation zone are respectively provided with a screw blade shaft in the water inlet zone, the low-temperature cooking zone, the high-temperature cooking zone and the separation zone, and the screw blade shaft extends out of the rod body in the zone. A gear is fixed at the end, and two adjacent gears mesh with each other. The casing is located on the upper side of the middle part of the water inlet area and is provided with a material guide port that communicates with the feeding pipe in the crushing kettle, and is located above the lower end of the water inlet area. A water guide hole communicated with the hot water chamber, the casing is located at the lower side of the low end of the separation area and is provided with a liquid drain port for communication with the hemicellulose collection chamber, and is located at the lower side of the high end of the separation area. The discharge pipe for the communication of the collection chamber. 4. The raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings according to claim 3, characterized in that: the shell is inclined in both the horizontal direction and the vertical direction, and the water inlet area is located at a high position , the separation zone is located at a lower position. 5. The raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings according to claim 3, wherein the lower ends of the water inlet area and the low-temperature cooking area are communicated with each other, and the low-temperature cooking area is connected with each other. , The high-level ends of the high-temperature cooking zone are communicated with each other, and the low-end ends of the high-temperature cooking zone and the separation zone are communicated with each other. 6. The raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings according to claim 3, is characterized in that: the rod body in the area where one of the helical leaf shafts extends through the pulley and the rotating shaft of the second motor A transmission connection is made, and the second motor is fixed with the integrated processing box. 7. The raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings according to claim 3, characterized in that: the pitch of the screw blade shaft in the water inlet zone and the low-temperature cooking zone is the first pitch, and the The pitch of the screw blade shaft in the high-temperature cooking zone is the second screw pitch, the screw pitch of the screw blade shaft in the separation zone is the third screw pitch, the first screw pitch is greater than the second screw pitch, the third screw pitch is a gradual pitch, and the The maximum value is less than or equal to the second pitch. 8. The raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings according to claim 3, characterized in that: the casing is provided with a first heater on the lower side of the low-temperature cooking zone, and is located at the lower side of the high-temperature cooking zone. The lower side is provided with a second heater, the temperature of the hot water in the hot water chamber is controlled at 40-50°C, the temperature in the low-temperature cooking zone is controlled at 55-65°C, and the temperature in the high-temperature cooking zone is controlled at 80～50°C 90°C. 9. The raw material pretreatment device for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings according to claim 3, characterized in that: the side part of the integrated treatment box is provided with a water supply pipe communicated with the hot water chamber, The suction pipe communicated with the cellulose collection chamber, and the cleaning pipe connected with the cellulose collection chamber, valves are installed on the water replenishment pipe and the suction pipe, and an openable plug is installed on the opening of the cleaning pipe. cover. 10. A raw material pretreatment method for the production of natural polysaccharide-based medical antibacterial hydrocolloid dressings, realized based on the device according to any one of claims 1 to 9, characterized in that it comprises the following steps: 1) Put the straw into the pulverizing kettle of the integrated treatment box, use the pulverizing mechanism to pulverize the straw, and transport the pulverized raw materials to the separation device; 2) The pulverized raw material and hot water at 40-50°C are introduced into the water inlet area of the separation device, mixed and transferred to the low-temperature cooking zone at 60-80°C for low-temperature cooking, and then transferred to the high-temperature cooking zone at 80-90°C. High-temperature cooking, and finally transferred to the separation zone, where the hemifiber filtrate is diverted to the hemicellulose collection chamber for storage, and the cellulose product is transferred to the cellulose collection chamber for storage.

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