Filtering and purifying device based on collagen production

Abstract

The utility model relates to the technical field of collagen production, in particular to a filtering and purifying device based on collagen production, and aims to solve the technical problems that the concentration of a final product is reduced due to the fact that the existing collagen filtering and purifying processing needs to be completed in different equipment and lump protein is easy to separate out. According to the technical scheme, the filtering and purifying device based on collagen production comprises an upper tank body, a lower tank body, a cooking and filtering mechanism, a mixing mechanism, a secondary filtering mechanism, a supporting plate and an enzymolysis agent adding mechanism, according to the utility model, the collagen filtering and purifying equipment which is integrally designed replaces the original multi-equipment combined operation for filtering and purifying, so that the transfer time of a collagen solution is shortened, the temperature loss of collagen is reduced, the precipitation of a protein group is reduced, and the concentration and purity of a final product are ensured; the problem that the concentration of a final product is reduced due to the fact that existing collagen filtering and purifying processing needs to be completed in different devices and lump protein is easy to separate out is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of collagen production, in particular to a filtration and purification device based on collagen production. Background Art

[0002] Collagen is a biological macromolecule and is the most abundant and widely distributed functional protein in mammals. It has biocompatibility unparalleled by other synthetic polymer materials. Therefore, as a biological material, its importance in industries such as medicine, food, and cosmetics is becoming increasingly prominent. During the production process of collagen, filtration and purification equipment is required to carry out filtration and purification treatment on it.

[0003] During the filtration and purification process, collagen usually exists in a solution form. First, the raw material of the collagen solution is mixed with an appropriate amount of water, then subjected to high-temperature steaming, and then, under appropriate pH conditions, an appropriate amount of enzyme hydrolysis agent is added for protease extraction and separation. After completion, fine filtration and concentration are carried out. However, existing collagen filtration and purification procedures are all carried out separately in different containers. There is a time interval during the solution transfer process, and the temperature of the collagen solution drops very quickly, resulting in a large amount of agglomerated proteins precipitating, causing a decrease in the concentration of the final collagen product.

[0004] Therefore, in view of the above situation where the existing collagen filtration and purification processing needs to be completed in different devices, and during the protein solution transfer process, due to the long time interval and rapid temperature drop, it is easy to precipitate agglomerated proteins, resulting in a decrease in the concentration of the final product, an integrated collagen filtration and purification device can be designed to allow the protein solution to complete filtration and purification in the same chamber in a short time. Summary of the Utility Model

[0005] In order to overcome the problem that the existing collagen filtration and purification processing needs to be completed in different devices, and it is easy to precipitate agglomerated proteins, resulting in a decrease in the concentration of the final product.

[0006] The technical solution of the utility model is: a filtration and purification device based on collagen production, including an upper tank body, a feeding port fixedly connected to the upper end of the upper tank body, a lower tank body threadedly connected to the lower end of the upper tank body, a discharge port fixedly connected to the lower end of the lower tank body, a steaming and filtering mechanism, a mixing mechanism, a secondary filtering mechanism, a support plate, and an enzyme hydrolysis agent adding mechanism; the steaming and filtering mechanism is fixedly installed in the upper tank body through bolts, the mixing mechanism is installed in the steaming and filtering mechanism, the secondary filtering mechanism is fixedly installed in the lower tank body through bolts, one side of the outer wall of the upper end of the upper tank body is integrally and fixedly connected with a support plate, and holes are provided on the outer wall of the upper tank body corresponding to the support plate and below the support plate. An enzyme hydrolysis agent adding mechanism connected to an external enzyme hydrolysis agent pumping device is inserted into the holes and extends downward into the steaming and filtering mechanism.

[0007] Preferably, a collagen solution is added into the upper tank from the feeding port. The solution enters the cooking and filtering mechanism for heating treatment, and at an appropriate temperature, an enzyme is added through the enzyme addition mechanism, and the reaction between the enzyme and the collagen solution is accelerated with the assistance of the mixing mechanism. After sufficient reaction, the solution is first filtered in the cooking and filtering mechanism, and then discharged into the secondary filtering mechanism for the second and third fine filtrations. Finally, it is discharged from the discharge port and then obtained through concentration treatment to obtain qualified collagen.

[0008] Preferably, the cooking and filtering mechanism includes a first wall plate, a raised bottom wall, a liquid discharge hole, a snap ring, and a first heating ring. The first wall plate has holes and is fixed to the inner wall of the upper tank by bolts. An integrally fixed raised bottom wall is provided on the inner wall of the first wall plate. The inner wall of the first wall plate and the upper surface of the raised bottom wall enclose a cylindrical chamber for cooking the collagen solution. A liquid discharge hole is provided on one side of the edge of the raised bottom wall. Six to eight snap rings are fixedly connected in a circle on the lower surface of the raised bottom wall. A first heating ring for heating the cylindrical chamber is clamped and fixed between the snap rings. The snap rings are used to firmly fix the first heating ring at the lower end of the raised bottom wall. The collagen solution entering the cylindrical chamber is cooked under the heating of the first heating ring, and the cooked collagen solution flows out from the opened liquid discharge hole.

[0009] Preferably, the cooking and filtering mechanism further includes a hopper chamber, a filter screen, a first support, a cylinder, a bracket, and a shield. The lower end of the first wall plate is integrally fixed with a hopper chamber. A pipe opening is provided at the lower end of the hopper chamber. A filter screen in the structure of a hollow truncated cone is integrally fixed on the upper surface of the hopper chamber. A first support is fixedly connected between the upper edge of the filter screen and the upper surface of the hopper chamber. A cylinder is installed on the first support. The upper end of the power output element of the cylinder is fixedly connected with a bracket, and the upper end of the bracket is fixedly connected with a shield sleeved outside the filter screen. The heated collagen solution flowing out from the liquid discharge hole enters the hopper chamber and is first blocked by the shield and cannot flow further downward. After the enzyme is added, an enzymatic reaction takes place in the annular cavity formed by the shield and the first wall plate. After the reaction is completed, the cylinder is started to drive the shield to move upward to open the filter screen. The enzymatically hydrolyzed collagen solution passes through the filter screen to complete the first filtration and continues to flow downward, and flows into the secondary filtering mechanism through the pipe opening at the lower end of the hopper chamber.

[0010] Preferably, the mixing mechanism includes a second support, a motor, a suspension bracket, a stirring ring, and a stirring rod. The second support is fixedly installed on the lower surface of the raised bottom wall. A motor is installed on the second support. The lower end of the transmission shaft of the motor is fixedly connected with a suspension bracket, and the lower end of the suspension bracket is fixedly connected with a stirring ring located outside the shield. Twelve to fifteen stirring rods are integrally fixed in a circle on the outer wall of the stirring ring. The motor drives the stirring ring and the stirring rods to rotate to stir the collagen solution in the annular cavity formed by the shield and the first wall plate, accelerating the full reaction between it and the enzyme.

[0011] Preferably, the secondary filtration mechanism includes a second wall plate, an upper diaphragm, a lower diaphragm, struts, and a secondary heating ring; the second wall plate has holes and is fixed to the inner wall of the lower tank body by bolts passing through. The upper diaphragm and the lower diaphragm are fixedly installed on the inner wall of the second wall plate from top to bottom. The upper diaphragm is a conical structure bulging upward, and the lower diaphragm is a conical structure bulging downward. There are 6 - 8 struts fixedly connected between the upper diaphragm and the lower diaphragm, arranged in a circle around. The lower end of the second wall plate is a hollow structure and houses the secondary heating ring. The collagen solution after enzymatic hydrolysis continues to flow downward, first falling on the upper diaphragm, flowing evenly around the top of the upper diaphragm and gradually seeping onto the lower diaphragm. The collagen solution reaching the lower diaphragm flows downward to the middle of the lower diaphragm, converges, and gradually penetrates, and is discharged from the discharge port. Through the setting of the secondary heating ring, the collagen solution is continuously heated during the penetration process to maintain its temperature and reduce the precipitation of proteins.

[0012] Preferably, the enzymatic agent adding mechanism includes an injection rod and a plug; the injection rod is a hollow tubular structure and is inserted into the holes on the support plate and the upper tank body. The lower end of the injection rod is fixedly connected with a plug, and the plug is inserted into the drain hole and closes it. During the enzymatic hydrolysis process, the plug always closes the drain hole to prevent the collagen solution from seeping downward through the drain hole, so that it has sufficient enzymatic reaction time.

[0013] Preferably, the enzymatic agent adding mechanism further includes a handle and a liquid inlet pipe; the upper end of the injection rod is fixedly connected with a handle. The handle is above the support plate and a spring is installed between the handle and the support plate. The upper end of the handle is fixedly connected with a liquid inlet pipe connected to an external enzymatic agent pumping device. The external enzymatic agent pumping device pumps the enzymatic agent into the liquid inlet pipe through the liquid inlet pipe, and it flows into the annular cavity formed by the baffle and the first wall plate to contact the collagen solution.

[0014] The beneficial effects of the present utility model are as follows:

[0015] 1. By using an integrated collagen filtration and purification device to replace the original combined operation of multiple devices for filtration and purification, the transfer time of the collagen solution is shortened, the temperature loss of collagen is reduced, the precipitation of protein clusters is reduced, and the concentration and purity of the final product are ensured.

[0016] 2. By the combined use of the steaming and filtering mechanism and the enzymatic agent adding mechanism, the enzymatic agent is added in time after steaming, and the reaction process continues in a suitable temperature environment to ensure the reaction speed.

[0017] 3. A three - level filtration system is formed by the filter screen and the upper and lower diaphragms to achieve fine separation of the collagen solution. Description of the Drawings

[0018] Figure 1The figure shows a schematic cross-sectional structure diagram of a filtration and purification device based on collagen production according to the present utility model;

[0019] Figure 2 The figure shows a schematic external three-dimensional structure diagram of a filtration and purification device based on collagen production according to the present utility model;

[0020] Figure 3 The figure shows a schematic internal three-dimensional structure diagram of a filtration and purification device based on collagen production according to the present utility model;

[0021] Figure 4 The figure shows a schematic three-dimensional structure diagram of a pressing component of a filtration and purification device based on collagen production according to the present utility model;

[0022] Figure 5 The figure shows a schematic three-dimensional structure diagram of an auxiliary adjustment component of a filtration and purification device based on collagen production according to the present utility model;

[0023] Figure 6 The figure shows a schematic three-dimensional structure diagram of a connecting bracket of a filtration and purification device based on collagen production according to the present utility model.

[0024] Explanation of reference numerals: 1, upper tank body; 2, feeding port; 3, lower tank body; 4, discharge port; 8, support plate; 501, first wall plate; 502, raised bottom wall; 503, liquid discharge hole; 504, snap ring; 505, hopper chamber; 506, filter screen; 507, first support; 508, cylinder; 509, bracket; 510, shield; 511, first heating ring; 601, second support; 602, motor; 603, hanger; 604, stirring ring; 605, stirring rod; 701, second wall plate; 702, upper diaphragm; 703, lower diaphragm; 704, support column; 705, secondary heating ring; 901, liquid injection rod; 902, plug; 903, handle; 904, liquid inlet pipe. Detailed implementation manners

[0025] The present utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0026] Please refer to Figure 1-6, embodiments provided by the present utility model: a filtration and purification device based on collagen production, comprising an upper tank body 11, a feeding port 2 fixedly connected to the upper end of the upper tank body 1, a lower tank body 3 threadedly connected to the lower end of the upper tank body 1, a discharge port 4 fixedly connected to the lower end of the lower tank body 3, a cooking and filtering mechanism, a mixing mechanism, a secondary filtering mechanism, a support plate 88, and an enzyme solution adding mechanism; the cooking and filtering mechanism is fixedly installed in the upper tank body 1 by bolts, the mixing mechanism is installed in the cooking and filtering mechanism, the secondary filtering mechanism is fixedly installed in the lower tank body 3 by bolts, one side of the outer wall of the upper end of the upper tank body 11 is integrally and fixedly connected with a support plate 8, and holes are formed in the outer wall of the upper tank body 1 corresponding to the support plate 8 and below the support plate 8. An enzyme solution adding mechanism connected to an external enzyme solution pumping device is inserted into the holes, and the enzyme solution adding mechanism extends downward into the cooking and filtering mechanism. Collagen solution is added into the upper tank body 1 from the feeding port 2. The solution enters the cooking and filtering mechanism for heating treatment, and at an appropriate temperature, an enzyme solution is added through the enzyme solution adding mechanism, and the reaction between the enzyme solution and the collagen solution is accelerated with the assistance of the mixing mechanism. After sufficient reaction, the first filtration is carried out in the cooking and filtering mechanism, and then it is discharged into the secondary filtering mechanism for the second and third fine filtrations. Finally, it is discharged from the discharge port 4 and then obtained as qualified collagen through concentration treatment.

[0027] Please refer to Figure 1 , 4-5. In this embodiment, the cooking and filtering mechanism includes a first wall plate 501, a raised bottom wall 502, a drain hole 503, a snap ring 504, and a first heating ring 511. The first wall plate 501 has holes and is fixed to the inner wall of the upper tank body 1 by bolts. A raised bottom wall 502 is integrally and fixedly connected to the inner wall of the first wall plate 501. The inner wall of the first wall plate 501 and the upper surface of the raised bottom wall 502 enclose a cylindrical chamber for cooking the collagen solution. A drain hole 503 is provided on one side of the edge of the raised bottom wall 502. Six to eight snap rings 504 are fixedly connected in a circle on the lower surface of the raised bottom wall 502. A first heating ring 511 for heating the cylindrical chamber is clamped and fixed between the snap rings 504. The snap rings 504 are used to firmly fix the first heating ring 511 at the lower end of the raised bottom wall 502. The collagen solution entering the cylindrical chamber is cooked under the heating of the first heating ring 511. After cooking, the collagen flows out from the opened drain hole 503. The cooking and filtering mechanism further includes a hopper chamber 505, a filter screen 506, a first support 507, a cylinder 508, a bracket 509, and a shield 510. A hopper chamber 505 is integrally and fixedly connected to the lower end of the first wall plate 501. A pipe opening is provided at the lower end of the hopper chamber 505. A filter screen 506 having a hollow truncated cone structure is integrally and fixedly connected to the upper surface of the hopper chamber 505. A first support 507 is fixedly connected between the upper edge of the filter screen 506 and the upper surface of the hopper chamber 505. A cylinder 508 is installed on the first support 507. The upper end of the power output element of the cylinder 508 is fixedly connected to a bracket 509. A shield 510 sleeved outside the filter screen 506 is fixedly connected to the upper end of the bracket 509. The heated collagen solution flowing out from the drain hole 503 enters the hopper chamber 505 and is first blocked by the shield 510 and cannot flow further downward. After adding the enzyme hydrolyzing agent, an enzymatic hydrolysis reaction is carried out in the annular cavity formed by the shield 510 and the first wall plate 501. After the reaction is completed, the cylinder 508 is started to drive the shield 510 to move upward, opening the filter screen 506. The enzymatically hydrolyzed collagen solution passes through the filter screen 506 to complete the first filtration and continues to flow downward, flowing into the secondary filtration mechanism through the pipe orifice at the lower end of the hopper chamber 505. The mixing mechanism includes a second support 601, a motor 602, a suspension bracket 603, a stirring ring 604, and a stirring rod 605. The second support 601 is fixedly installed on the lower surface of the raised bottom wall 502. A motor 602 is installed on the second support 601. The lower end of the transmission shaft of the motor 602 is fixedly connected to a suspension bracket 603. A stirring ring 604 located outside the shield 510 is fixedly connected to the lower end of the suspension bracket 603. Twelve to fifteen stirring rods 605 are integrally and fixedly connected in a circle on the outer wall of the stirring ring 604. The motor 602 drives the stirring ring 604 and the stirring rods 605 to rotate, stirring the collagen solution in the annular cavity formed by the shield 510 and the first wall plate 501 to accelerate its full reaction with the enzyme hydrolyzing agent.

[0028] Please refer to Figure 1 、3 6. In this embodiment, the secondary filtration mechanism includes a second wall plate 701, an upper diaphragm 702, a lower diaphragm 703, a support column 704, and a secondary heating ring 705. The second wall plate 701 has holes and is fixed to the inner wall of the lower tank body 3 by bolts. The upper diaphragm 702 and the lower diaphragm 703 are fixedly installed on the inner wall of the second wall plate 701 from top to bottom. The upper diaphragm 702 is a vertebral structure that bulges upward, and the lower diaphragm 703 is a vertebral structure that bulges downward. There are 6 - 8 support columns 704 fixedly connected between the upper diaphragm 702 and the lower diaphragm 703 and arranged around in a circle. The lower end of the second wall plate 701 is a hollow structure and internally contains a secondary heating ring 705. The collagen solution after enzymatic hydrolysis continues to flow downward, first falling on the upper diaphragm 702, flowing evenly around the top of the upper diaphragm 702 and gradually seeping onto the lower diaphragm 703. The collagen solution reaching the lower diaphragm 703 flows downward to the middle of the lower diaphragm 703, converges, and gradually penetrates, and is discharged from the discharge port 4. Through the setting of the secondary heating ring 705, the collagen solution is always heated during the penetration process to maintain its temperature and reduce the precipitation of proteins.

[0029] Please refer to Figure 4-5 In this embodiment, the enzyme addition mechanism includes an injection rod 901 and a plug 902. The injection rod 901 is a hollow tubular structure and is inserted into the orifices on the support plate 8 and the upper tank body 1. The lower end of the injection rod 901 is fixedly connected with a plug 902, and the plug 902 is inserted into the drain hole 503 and closes it. During the enzymatic hydrolysis process, the plug 902 always closes the drain hole 503 to prevent the collagen solution from seeping downward through the drain hole 503, so that it has sufficient enzymatic reaction time. The enzyme addition mechanism further includes a handle 903 and a liquid inlet pipe 904. The upper end of the injection rod 901 is fixedly connected with a handle 903. A spring is installed between the handle 903, which is above the support plate 8, and the support plate 8. The upper end of the handle 903 is fixedly connected with a liquid inlet pipe 904 connected to an external enzyme pumping device. The external enzyme pumping device pumps the enzyme into the liquid inlet pipe 904 through the liquid inlet pipe 904, and it flows into the annular cavity formed by the baffle 510 and the first wall plate 501 to contact the collagen solution.

[0030] When working, the user adds the collagen solution into the upper tank body 1 from the feeding port 2. The collagen solution enters the cylindrical chamber. The first heating ring 511 transfers heat upward through the bulging bottom wall 502 to heat the collagen solution to an appropriate temperature. Then the user holds the handle 903 and pulls the injection rod 901 upward, so that the plug 902 leaves the drain hole 503. The collagen solution after cooking flows out from the opened drain hole 503 into the annular cavity formed by the baffle 510 and the first wall plate 501;

[0031] Then, the external enzymatic hydrolysis agent pumping device pumps the enzymatic hydrolysis agent into the liquid inlet pipe 904 through the liquid inlet pipe 904, contacts with the collagen solution for enzymatic hydrolysis reaction. At the same time, the motor 602 drives the stirring ring 604 and the lever 605 to rotate, stirs the collagen solution, and accelerates its full reaction with the enzymatic hydrolysis agent;

[0032] After the reaction is completed, the cylinder 508 is started to drive the cover 510 to move upward to open the filter screen 506. The collagen solution after enzymatic hydrolysis passes through the filter screen 506 to complete the first filtration and flows into the upper diaphragm 702 through the pipe orifice at the lower end of the hopper chamber 505. The collagen solution flows uniformly around the top of the upper diaphragm 702 and gradually penetrates into the lower diaphragm 703. The collagen solution reaching the lower diaphragm 703 flows downward to the middle of the lower diaphragm 703 to converge and gradually penetrates, and is discharged from the discharge port 4.

[0033] Through the above steps, the integrated collagen filtration and purification device is used to replace the original combined operation of multiple devices for filtration and purification, shorten the transfer time of the collagen solution, reduce the temperature loss of collagen, reduce the precipitation of protein clusters, and ensure the concentration and purity of the final product to solve the problem that the existing collagen filtration and purification process needs to be completed in different devices, which is prone to precipitate agglomerated proteins and cause a decrease in the concentration of the final product.

[0034] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the purpose of the present invention.

Claims

1. A filtration and purification device for collagen production, comprising an upper tank body (1), a feeding port (2) fixedly connected to the upper end of the upper tank body (1), a lower tank body (3) threadedly connected to the lower end of the upper tank body (1), and a discharge port (4) fixedly connected to the lower end of the lower tank body (3); characterized in that: It also comprises a cooking and filtering mechanism, a mixing mechanism, a secondary filtering mechanism, a support plate (8), and an enzymatic agent adding mechanism; the cooking and filtering mechanism is installed in the upper tank body (1) by bolt anchoring, the mixing mechanism is installed in the cooking and filtering mechanism, the secondary filtering mechanism is installed in the lower tank body (3) by bolt anchoring, the support plate (8) is integrally fixedly connected to one side of the upper end outer wall of the upper tank body (1), and the support plate (8) and the corresponding outer wall of the upper tank body (1) below the support plate (8) are provided with openings, the enzymatic agent adding mechanism connected to the external enzymatic agent pumping device is inserted and installed in the opening, and the enzymatic agent adding mechanism extends downward into the cooking and filtering mechanism.

2. The filtration and purification device based on collagen production according to claim 1, characterized in that: The cooking and filtering mechanism comprises a first wall plate (501), a raised bottom wall (502), a drainage hole (503), a clamping ring (504), and a first heating ring (511); the first wall plate (501) is provided with holes and is fixed to the inner wall of the upper tank body (1) by bolts; the raised bottom wall (502) is integrally fixedly connected to the inner wall of the first wall plate (501); the inner wall of the first wall plate (501) and the upper surface of the raised bottom wall (502) form a cylindrical chamber for cooking the collagen solution; a drainage hole (503) is provided on one side of the edge of the raised bottom wall (502); 6 to 8 clamping rings (504) are fixedly connected around the lower surface of the raised bottom wall (502); and a first heating ring (511) for heating the cylindrical chamber is clamped and fixed between the clamping rings (504).

3. The filtration and purification device based on collagen production according to claim 2, characterized in that: The cooking and filtering mechanism further comprises a chamber (505), a filter screen (506), a first bracket (507), a cylinder (508), a bracket (509), and a shield (510); the lower end of the first wall plate (501) is integrally fixedly connected with the chamber (505), the lower end of the chamber (505) is provided with a pipe opening, the upper surface of the chamber (505) is integrally fixedly connected with a filter screen (506) in a hollow platform structure, the upper edge of the filter screen (506) and the upper surface of the chamber (505) are fixedly connected with the first bracket (507), the first bracket (507) is installed with the cylinder (508), the upper end of the power output element of the cylinder (508) is fixedly connected with the bracket (509), and the upper end of the bracket (509) is fixedly connected with a shield (510) sleeved on the outer side of the filter screen (506).

4. The filtration and purification device based on collagen production according to claim 3, characterized in that: The mixing mechanism comprises a second bracket (601), a motor (602), a hanger (603), a stirring ring (604), and a lever (605); the second bracket (601) is fixedly mounted on the lower surface of the raised bottom wall (502); the second bracket (601) is mounted with a motor (602); the lower end of the transmission shaft of the motor (602) is fixedly connected with the hanger (603); the lower end of the hanger (603) is fixedly connected with a stirring ring (604) located outside the baffle (510); and 12 to 15 levers (605) are integrally fixedly connected around the outer wall of the stirring ring (604).

5. The filtration and purification device based on collagen production according to claim 4, characterized in that: The secondary filtering mechanism comprises a second wall plate (701), an upper diaphragm (702), a lower diaphragm (703), a support (704), and a secondary heating ring (705); the second wall plate (701) is provided with holes and is fixed to the inner wall of the lower tank body (3) by bolts; the upper diaphragm (702) and the lower diaphragm (703) are fixedly installed on the inner wall of the second wall plate (701) from top to bottom; the upper diaphragm (702) is a cone structure that bulges upward, and the lower diaphragm (703) is a cone structure that bulges downward; 6 to 8 support pillars (704) arranged around the upper diaphragm (702) and the lower diaphragm (703) are fixedly connected between them; the lower end of the second wall plate (701) is a hollow structure and has a built-in secondary heating ring (705).

6. The filtration and purification device based on collagen production according to claim 5, characterized in that: The enzymatic agent adding mechanism comprises an injection rod (901) and a plug (902); the injection rod (901) is a hollow tubular structure and is inserted into the openings on the support plate (8) and the upper tank body (1); the lower end of the injection rod (901) is fixedly connected with the plug (902), and the plug (902) is inserted into the drainage hole (503) to seal it.

7. The filtration and purification device based on collagen production according to claim 6, characterized in that: The enzymolytic agent adding mechanism also includes a handle (903) and a liquid inlet pipe (904); the upper end of the liquid injection rod (901) is fixedly connected to the handle (903), the handle (903) is located above the support plate (8) and a spring is installed between the handle and the support plate (8), and the upper end of the handle (903) is fixedly connected to the liquid inlet pipe (904) connected to the external enzymolytic agent pumping device.

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