Slow-release chlorine dioxide disinfectant and disinfection device

Abstract

The invention relates to a slow-release chlorine dioxide disinfectant and a disinfection device. The slow-release chlorine dioxide disinfectant comprises reactant gel, activating agent gel and slow-release gel, the reactant gel is prepared from 450 to 500 parts of sodium chlorite, 100 to 130 parts of xanthan gum, 30 to 50 parts of agar, 5 to 30 parts of water and 20 to 40 parts of sodium chloride; the activating agent gel is prepared from 150 to 180 parts of macromolecular water-absorbent resin, 30 to 50 parts of polyvinyl alcohol, 320 to 350 parts of tartaric acid and 7 to 45 parts of water; the slow-release gel is prepared from 250 to 300 parts of high-molecular water-absorbent resin. The disinfection device comprises a reaction cylinder and a storage cylinder, a slow-release chlorine dioxide disinfectant is stored in the storage cylinder, reactant gel, activating agent gel and slow-release gel in the disinfectant are stored respectively, and when the disinfection device is used, the disinfectant is conveyed into the reaction cylinder, the reactant gel makes contact with the activating agent gel, and the reactant gel and the activating agent gel start to react to release chlorine dioxide for disinfection.

Description

Technical Field

[0001] The present application relates to the field of disinfectants, and in particular to a slow-release chlorine dioxide disinfectant and a disinfection device. Background Art

[0002] The oxidizing capacity of chlorine dioxide is 2.6 times that of chlorine. It can quickly oxidize and decompose bacteria, viruses, amino acids in proteins and many reducing substances, and will not cause carcinogenesis, teratogenesis or mutagenesis. It is currently recognized internationally as a safe and wide-spectrum bactericidal disinfectant. However, gaseous chlorine dioxide is active and unstable, and its solution is volatile. It is generally not convenient to make compressed gas or concentrated liquid, which greatly reduces the convenience of using chlorine dioxide. At the same time, chlorine dioxide is an explosive gas. When the content in the air is greater than 10%, it is easy to explode. Under the action of heat and light, chlorine dioxide is easily decomposed into hypochlorous acid, chlorine and oxygen, etc., and its performance is very unstable.

[0003] In order to facilitate use, slow-release chlorine dioxide has been developed, including adsorption slow-release chlorine dioxide and reaction slow-release chlorine dioxide. The preparation of adsorption slow-release chlorine dioxide is to fix the stable chlorine dioxide solution on the adsorption carrier, and then add stabilizers, slow-release agents, activators, etc. During use, the chlorine dioxide gas is slowly released from the carrier through activation; the reaction slow-release chlorine dioxide is to mix dehydrated sodium chlorite, solid acidifier, slow-release agent, stabilizer, etc. in a certain proportion, absorb moisture in the environment, and sodium chlorite reacts with the acidifier to release chlorine dioxide gas, and then the escape of chlorine dioxide gas is controlled by a slow-release device or a slow-release agent to achieve the purpose of slow release.

[0004] The applicant found that the sustained-release period of adsorption-type chlorine dioxide is short, the adsorption capacity of the adsorption carrier is limited, the release rate is difficult to control, and it is easily affected by the environment. The reactive slow-release chlorine dioxide on the market can only effectively release chlorine dioxide gas for about two months, and its sustained-release performance needs to be further enhanced. Summary of the invention

[0005] In order to improve the sustained-release performance of a sustained-release chlorine dioxide disinfectant and achieve long-term disinfection, the present application provides a sustained-release chlorine dioxide disinfectant and a disinfection device.

[0006] In a first aspect, the present application provides a slow-release chlorine dioxide disinfectant, which adopts the following technical solution.

[0007] A slow-release chlorine dioxide disinfectant, comprising a reactant gel, an activator gel and a slow-release gel; The reactant gel comprises the following raw materials in parts by weight: 450-500 parts of sodium chlorite, 100-130 parts of xanthan gum, 30-50 parts of agar, 5-30 parts of water, and 20-40 parts of sodium chloride: The activator gel comprises the following raw materials in parts by weight: 150-180 parts of high molecular water-absorbing resin, 30-50 parts of polyvinyl alcohol, 320-350 parts of tartaric acid, and 7-45 parts of water; The sustained-release gel comprises the following raw materials in parts by weight: 250-300 parts of high molecular water-absorbing resin.

[0008] By adopting the above technical solution, the reactant gel is mixed with the activator gel during use, and then a polymer water-absorbing resin is laid on the upper layer as a slow-release gel. After the reactant gel and the activator gel are mixed, chlorine dioxide gas is slowly released. At the same time, the gel is used to absorb excess chlorine dioxide gas, which further plays a buffering and regulating role. Adding polyvinyl alcohol to the polymer water-absorbing resin can achieve a higher strength hydrogel, and the slow-release effect is further improved.

[0009] The present application adopts a two-step slow-release method of chlorine dioxide gas: reaction-type slow-release and slow-release gel slow-release. The reaction-type slow-release means that after the reactant gel and the activator gel in the product come into contact with each other, sodium chlorite self-disproportionation reaction occurs, thereby causing a long-lasting and controllable reaction, thereby releasing chlorine dioxide gas uniformly and for a long time. The slow-release gel slow-release is to add a piece of chlorine dioxide slow-release gel on the basis of the reaction-type slow-release to ensure that the release of chlorine dioxide gas in the product is more persistent and uniform.

[0010] Furthermore, the weight ratio of the xanthan gum in the reactant gel to the high molecular water-absorbing resin in the activator gel and to the high molecular water-absorbing resin in the sustained-release gel is 1:(0.9-1.0).

[0011] Furthermore, the xanthan gum is modified xanthan gum, and the modification method thereof is: 1) dissolving xanthan gum in water to obtain a xanthan gum solution; 2) dissolving N-stearoylglycine in dimethyl sulfoxide to obtain a modified solution; 3) Add the modified solution to the xanthan gum solution, then add potassium persulfate as an initiator in an oxygen-free environment at 50-70°C and react for 3-5 hours; 4) After the reaction is completed, the reactants are poured into ethanol for precipitation and washing, and then dried at 30-70°C for 4-8 hours to obtain modified xanthan gum.

[0012] By adopting the above technical scheme, the modified xanthan gum forms a complex with the hydroxyl and carboxyl groups on the xanthan gum molecules through a surfactant, which changes the surface properties of the xanthan gum, thereby improving its dispersibility and stability in water. This modification method usually does not completely eliminate the hydrophilicity of the xanthan gum, but controls its water absorption rate and swelling degree by forming a hydrophobic protective layer on the surface of the xanthan gum, thereby avoiding rapid water absorption and swelling in water. It is avoided that the outer layer of the xanthan gum absorbs water and expands into micelles, thereby preventing water molecules from entering the inner layer, and ultimately affecting the effect of the xanthan gum. In addition, the interaction between the active groups on the surface of the modified xanthan gum and chlorine dioxide further strengthens the slow-release effect of the gel on chlorine dioxide.

[0013] Furthermore, the weight ratio of the xanthan gum to N-stearoyl glycine is 200:(2-5).

[0014] By adopting the above technical solution and controlling the ratio of xanthan gum to N-stearoyl glycine, the modified xanthan gum obtained within the ratio range of the present application can ensure water absorption while preventing the outer layer from rapidly absorbing water and swelling. The water absorption of the modified xanthan gum will not be greatly reduced, which will affect its fluidity and sustained release.

[0015] Furthermore, the preparation method of the reactant gel is: xanthan gum, sodium chlorite, sodium chloride, and agar are mixed and then ground, and the ground powder is added into water while stirring, and the mixture is allowed to stand for 2 hours to form a reactant gel; The preparation method of the activator gel is as follows: polyvinyl alcohol and tartaric acid are dissolved in water to obtain a mixed solution, and then a high molecular water-absorbing resin is added into the mixed solution and soaked for 3 minutes to form the activator gel.

[0016] In a second aspect, the present application provides a disinfection device, which adopts the following technical solution.

[0017] A disinfection device comprises a reaction cylinder and a storage cylinder, wherein a slow-release chlorine dioxide disinfectant is stored in the storage cylinder; The material storage cylinder comprises an outer cylinder and an inner cylinder; there is a material storage interval between the outer cylinder and the inner cylinder, a first partition plate is arranged between the outer cylinder and the inner cylinder, the material storage interval is divided into upper and lower parts, the upper part of the first partition plate is the slow-release gel material storage interval; a second partition plate is arranged under the first partition plate, the lower part of the first partition plate is divided into a reactant gel material storage interval and an activator gel material storage interval; the reaction cylinder is arranged in the inner cylinder, and the reaction cylinder and the inner cylinder rotate relatively; The inner cylinder is provided with a plurality of first through holes, the reaction cylinder is provided with a second through hole, the first through holes and the second through holes are connected to the reactant gel storage compartment and the reaction cylinder, and the activator gel storage compartment and the reaction cylinder; The inner cylinder includes a connecting rod and a cylinder wall connected in series, the connecting rod is opposite to the slow-release gel storage interval, and the cylinder wall is opposite to the storage interval below the first partition plate; a plurality of third through holes are arranged on the reaction cylinder, and the third through holes connect the slow-release gel storage interval and the reaction cylinder; a plurality of blocking sheets for blocking the third through holes are arranged in the reaction cylinder; A driving assembly is arranged between the reaction cylinder and the material storage cylinder, and the driving assembly drives the material storage cylinder and the baffle to rotate in sequence.

[0018] By adopting the above technical solution, the reactant gel is placed in the reactant gel storage compartment, the activator gel is placed in the activator gel storage compartment, and the slow-release gel is placed in the slow-release gel storage compartment, which is convenient for storage and transportation.

[0019] When in use, the inner cylinder is rotated so that a first through hole of the reactant gel storage interval is opposite to the second through hole, and at the same time, a first through hole of the corresponding activator gel storage interval is opposite to the second through hole. The reactant gel and the activator gel enter the reaction cylinder through the corresponding second through holes respectively, and the two contact and begin to slowly release chlorine dioxide. Continue to rotate the inner cylinder so that the first through hole and the second through hole are misaligned, and the gel is stopped from being transported into the reaction cylinder. At this time, the rotating baffle leaves the third through hole, and the slow-release gel enters the reaction cylinder and is laid on the gel at the bottom, and then the rotating baffle is reset to further slow-release the chlorine dioxide.

[0020] After the set time is reached, the above operation is repeated again, so that the second group of first through holes are opposite to the second through holes, and the above process is repeated. On the one hand, excessive chlorine dioxide is avoided, and on the other hand, the convenience of storage and use is improved, and there is no need to add disinfectant multiple times.

[0021] Furthermore, the driving assembly includes a first rotating shaft, a second rotating shaft, a first connecting rod, a plurality of second connecting rods, a connecting tube, a first one-way bearing and a second one-way bearing; the first rotating shaft is rotatably arranged above the reaction tube, the connecting tube is sleeved on the first rotating shaft, and the first one-way bearing is arranged between the first rotating shaft and the connecting tube, that is, the first rotating shaft drives the connecting tube to rotate in one direction; the first connecting rod is arranged between the connecting tube and the inner tube; the second rotating shaft is arranged in the reaction tube, and the first rotating shaft and the second rotating shaft are connected through the second one-way bearing; the second connecting rod is arranged between the second rotating shaft and the baffle.

[0022] By adopting the above technical solution, the first rotating shaft is rotated, and the first rotating shaft drives the connecting tube to rotate through the first bearing, and the connecting tube drives the inner tube to rotate through the first connecting rod, so that the first through hole is opposite to the second through hole. At this time, the first rotating shaft cannot drive the second rotating shaft to rotate through the one-way bearing. Then the first rotating shaft is rotated in the opposite direction. At this time, the first rotating shaft cannot drive the connecting tube to rotate. The first rotating shaft drives the second rotating shaft to rotate through the second one-way bearing, and the second rotating shaft drives the baffle to rotate through the second connecting rod. The distribution and transportation of the reactant gel, the activator gel and the sustained-release gel can be achieved only by rotating the first rotating shaft, and the structure is simple and the operation is convenient.

[0023] Furthermore, an extrusion assembly is provided in both the reactant gel storage compartment and the activator gel storage compartment, and the extrusion assembly includes an extrusion plate, an elastic member and a positioning protrusion. The extrusion plate is rotatably arranged relative to the outer cylinder, and the elastic member is arranged between the extrusion plate and the second partition plate. The elastic member drives the extrusion plate to move in a direction away from the elastic member; the positioning protrusion is fixedly arranged on the inner cylinder, the fixed protrusion is located on the movement path of the extrusion plate, and the positioning protrusion abuts against the side of the extrusion plate away from the elastic member.

[0024] By adopting the above technical solution, the first fixed protrusion abuts against the side of the extrusion plate away from the elastic member, the extrusion plate is positioned, and the elastic member is compressed. As the inner cylinder rotates, the positioning protrusion rotates, and the elastic member pushes the extrusion plate to move until it moves with the next positioning protrusion. On the one hand, the reactant gel and the activator gel are accelerated to enter the reaction cylinder. On the other hand, if there is no extrusion assembly, as the gel in the storage interval decreases, it becomes more difficult for the gel to flow into the reaction cylinder. After the extrusion assembly is set, the gel can enter the reaction cylinder more smoothly under the extrusion action of the extrusion plate.

[0025] Furthermore, a stirring rod is arranged on the second rotating shaft.

[0026] By adopting the above technical solution, after the reactant gel and the activator gel enter the reaction cylinder, the first rotating shaft is rotated in the opposite direction to drive the second rotating shaft to rotate, and the second rotating shaft drives the stirring rod to rotate so that the reactant gel and the activator gel are evenly mixed. It should be noted that the second rotating shaft drives the stirring rod to rotate quickly, and the rotation is stopped after stirring for a few circles. After the rotation stops, the blocking piece does not cover the third through hole, so that the slow-release gel can be spread on the bottom gel.

[0027] Furthermore, a friction portion is provided on the inner wall of the reaction tube, and when the blocking piece rotates to a position completely away from the third through hole, the friction force generated by the contact between the blocking piece and the friction portion is greater than the friction force between the blocking piece and the inner wall of the reaction tube.

[0028] By adopting the above technical solution, when obvious resistance is felt during the rotation process, the surface blocking piece completely leaves the third through hole.

[0029] In summary, this application has the following beneficial effects: 1. This application adopts a two-step slow-release method for chlorine dioxide gas: reaction-type slow-release and slow-release gel slow-release. The reaction-type slow-release means that after the reactant gel and the activator gel in the product come into contact with each other, sodium chlorite self-disproportionation reaction occurs, resulting in a long-lasting and controllable reaction, thereby releasing chlorine dioxide gas uniformly and for a long time. The slow-release gel slow-release is to add a piece of chlorine dioxide slow-release gel on the basis of the reaction-type slow-release to ensure that the release of chlorine dioxide gas in the product is more persistent and uniform; 2. The disinfection device of the present application is compatible with a slow-release chlorine dioxide disinfectant, which, on the one hand, avoids the production of excessive chlorine dioxide and causes waste, and on the other hand, improves the convenience of storage and use without the need to add disinfectant multiple times. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the overall structure of the application example of this application; Figure 2 This is a schematic diagram showing the explosion structure of the reaction tube; Figure 3 A cross-sectional view showing the interior of the reaction tube; Figure 4 To show the structural diagram of the drive component; Figure 5 for Figure 4 A partial enlarged view of the middle part; Figure 6 A schematic diagram showing the structure of the extrusion component.

[0031] Description of reference numerals: 1. Storage barrel; 11. Outer barrel; 111. First partition plate; 112. Second partition plate; 12. Inner barrel; 121. Connecting rod; 122. Barrel wall; 1221. First through hole; 2. Reaction barrel; 21. Release hole; 22. Second through hole; 23. Third through hole; 24. Blocking piece; 3. Driving assembly; 31. First rotating shaft; 32. Second rotating shaft; 321. Stirring rod; 33. First connecting rod; 34. Second connecting rod; 35. Connecting tube; 36. First one-way bearing; 37. Second one-way bearing; 4. Extrusion assembly; 41. Extrusion plate; 42. Elastic member; 43. Positioning protrusion. DETAILED DESCRIPTION

[0032] The present application is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0033] Raw materials and intermediate preparation examples raw material The raw materials for this application can be obtained from the market: Sodium chlorite, chemically pure; Xanthan gum, chemically pure, from Tianjin Xiensi Biotechnology Company; Agar, chemically pure, from Tianjin Xiensi Biotechnology Company; Sodium chloride, analytical grade; Polymer water-absorbing resin, chemically pure, Shanghai Yuanye Biotechnology Co., Ltd. Polyvinyl alcohol, type 2488, analytical grade; Tartaric acid, analytical grade; N-stearoylglycine, analytical grade.

[0034] Preparation Example Preparation Example 1 A modified xanthan gum, the preparation method of which is as follows: 1) Dissolve 35g of xanthan gum in distilled water, place in a constant temperature water bath at 30°C, stir at constant temperature and pass nitrogen protection to ensure that the xanthan gum is completely dissolved to obtain a xanthan gum solution; 2) dissolving 2000 g of N-stearoyl glycine in 3 L of dimethyl sulfoxide to obtain a modified solution; 3) Add the modified solution to the xanthan gum solution, then add 0.02 g potassium persulfate as an initiator in an oxygen-free environment at 60°C and react for 4 hours; 4) After the reaction is completed, the reactant is poured into ethanol for precipitation and washing, and then dried at 50°C for 6 hours to obtain modified xanthan gum.

[0035] Preparation Example 2 Different from Preparation Example 1, the amount of xanthan gum used in Preparation Example 2 is 20 g.

[0036] Preparation Example 3 Different from Preparation Example 1, the amount of xanthan gum used in Preparation Example 3 is 50 g.

[0037] Preparation Example 4 Different from Preparation Example 1, the amount of xanthan gum used in Preparation Example 4 is 15 g. Example

[0038] Examples 1-3 A slow-release chlorine dioxide disinfectant, the preparation method of which is as follows: S1. According to the raw material ratio in Table 1, xanthan gum, sodium chlorite, sodium chloride, and agar are mixed and ground, and the ground powder is added to water while stirring. After mixing, it is allowed to stand for 2 hours to form a reaction gel, which is packaged separately; S2. According to the raw material ratio in Table 1, polyvinyl alcohol and tartaric acid were dissolved in water to obtain a mixed solution, and then a polymer absorbent resin was added to the mixed solution and soaked for 3 min to form an activator gel, which was packaged separately; S3. According to the raw material ratio in Table 1, the polymer water-absorbing resin is packaged separately.

[0039] Table 1 Raw material ratio table of Examples 1-3 (kg)

[0040] Embodiment 4-7 Different from Example 2, in Examples 4-7, xanthan gum was replaced with an equal amount of modified xanthan gum from Preparation Examples 1-4, respectively.

[0041] Comparative Example Comparative Example 1 The difference from Example 1 is that in Comparative Example 1, an equal amount of a high molecular weight water-absorbing resin is used to replace polyvinyl alcohol.

[0042] Comparative Example 2 Different from Example 1, Comparative Example 2 does not contain sustained-release gel.

[0043] Performance Testing Take 5 ml of the reactant gel and the activator gel respectively and put them into a centrifuge tube. After stirring and mixing, add 8 ml of the sustained-release gel (not added in comparative example 2). Put the centrifuge tube into a conical flask containing an acidic potassium iodide solution and seal the conical flask to ensure that the chlorine dioxide gas is completely absorbed by the acidic potassium iodide solution. Replace and titrate the oxidized acidic KI solution in the conical flask at a fixed time every day, record the titration data and duration to calculate the daily chlorine dioxide release. Some of the recorded data are shown in Table 2.

[0044] Table 2 Performance test results

[0045] Combining Examples 1-7 with Comparative Examples 1-2 and Table 2, it can be seen that the 90-day chlorine dioxide release in Examples 1-7 is higher than that in Comparative Example 1, and no chlorine dioxide is released in Comparative Example 1 at 120 days. This shows that the disinfectant prepared in the present application has a better sustained release effect.

[0046] Combining Example 1 with Comparative Example 1 and Table 2, it can be seen that the chlorine dioxide release in Example 1 at 90 days and 120 days is higher than that in Comparative Example 1, and no chlorine dioxide is released at 150 days in Comparative Example 1, which indicates that adding polyethylene glycol to the activator gel can improve the sustained release effect of chlorine dioxide.

[0047] In conjunction with Example 1 and Example 4-7, and in conjunction with Table 2, it can be seen that modifying xanthan gum will affect the slow-release effect of chlorine dioxide. Wherein the modified xanthan gum in Example 4-6 can improve the slow-release effect of chlorine dioxide, while the slow-release effect in Example 7 has decreased, which may be because the modified xanthan gum in Example 4-6 forms a complex with the hydroxyl and carboxyl groups on the xanthan gum molecules through a surfactant, which changes the surface properties of the xanthan gum, and improves its dispersibility and stability in water. This modification method usually does not completely eliminate the hydrophilicity of xanthan gum, but controls its water absorption rate and expansion degree by forming a hydrophobic protective layer on the surface of the xanthan gum, thereby avoiding rapid water absorption and expansion in water. Avoid because the outer layer of xanthan gum absorbs water and expands into micelles, thereby preventing water molecules from entering the inner layer, and finally affecting the effect of xanthan gum. In addition, the interaction between the active groups on the surface of the modified xanthan gum and chlorine dioxide further strengthens the slow-release effect of the gel on chlorine dioxide. The modification in Example 7 may increase the hydrophobicity of xanthan gum, affecting its absorption and sustained release effect on the activator.

[0048] Application Examples Reference Figure 1 A disinfection device includes a reaction barrel 2 and a storage barrel 1. The reaction barrel 2 is arranged in the storage barrel 1. The disinfectant is stored in the storage barrel 1. A release hole 21 for chlorine dioxide to overflow is arranged on the upper part of the reaction barrel 2. The reactant gel, activator gel, and slow-release gel in the disinfectant are stored separately. When in use, the disinfectant is transported to the reaction barrel 2 so that the reactant gel contacts the activator gel, and the reaction starts to release chlorine dioxide for disinfection.

[0049] Reference Figure 1 and Figure 2 The material storage cylinder 1 comprises an outer cylinder 11 and an inner cylinder 12, wherein an interval is provided between the outer cylinder 11 and the inner cylinder 12, and the interval is the material storage interval, and the inner cylinder 12 is rotatably connected to the outer cylinder 11. A first partition plate 111 is provided in the material storage interval, and the first partition plate 111 is fixedly connected to the outer cylinder 11, and the first partition plate 111 divides the material storage interval into two upper and lower intervals, and the upper layer is the slow-release gel material storage interval. Two second partition plates 112 are fixedly provided below the first partition plate 111, and the two second partition plates 112 divide the material storage interval below the first partition plate 111 into two left and right intervals, which are respectively the reactant gel material storage interval and the activator gel material storage interval. The reactant gel, the activator gel, and the slow-release gel are stored in the corresponding material storage intervals respectively, which is convenient for storage and transportation.

[0050] Reference Figure 2 and Figure 3, the inner cylinder 12 is provided with a plurality of first through holes 1221, the first through holes 1221 are provided below the first partition plate 111, and in this application example, six first through holes 1221 are evenly provided, three of which are located in the reactant gel storage interval, and three of which are located in the activator gel storage interval. The reaction cylinder 2 is provided with a second through hole 22, and two second through holes 22 are symmetrically provided. The inner cylinder 12 is rotated, and a first through hole 1221 in the reactant gel storage interval and a first through hole 1221 in the activator gel storage interval are aligned with the second through holes 22 respectively, connecting the reactant gel storage interval with the reaction cylinder 2 and the activator gel storage interval with the reaction cylinder 2. When it is necessary to use for disinfection, the inner cylinder 12 is rotated so that a group of first through holes 1221 are aligned with the second through holes 22, and the reactant gel and the activator gel pass through the first through holes 1221 and the second through holes 22 into the reaction cylinder 2, and contact and react in the reaction cylinder 2 to produce chlorine dioxide.

[0051] Reference Figure 2 and Figure 3 The inner cylinder 12 includes a cylinder wall 122 and a connecting rod 121 connected in series up and down, the cylinder wall 122 is located below the first partition plate 111, the connecting rod 121 is located above the first partition plate 111, and the connecting rod 121 is evenly arranged. A plurality of third through holes 23 are arranged on the reaction cylinder 2, and the third through holes 23 are located above the first partition plate 111; a plurality of baffles 24 for blocking the third through holes 23 are arranged in the reaction cylinder 2, and the baffles 24 are rotatably connected to the reaction cylinder 2, and the rotation axis of the baffles 24 is parallel to the axis of the reaction cylinder 2. A driving component 3 is arranged between the reaction cylinder 2 and the storage cylinder 1, and the driving component 3 drives the inner cylinder 12 and the baffles 24 to rotate in sequence. When in use, the driving component 3 first drives the inner cylinder 12 to rotate, so that the reactant gel and the activator gel enter the reaction cylinder 2, and then drives the baffles 24 to rotate, so that the slow-release gel enters the reaction cylinder 2 and is laid on the bottom gel.

[0052] Reference Figure 1 , Figure 4 and Figure 5 The driving assembly 3 includes a first rotating shaft 31, a second rotating shaft 32, a first connecting rod 33, a plurality of second connecting rods 34, a connecting tube 35, a first one-way bearing 36 and a second one-way bearing 37. The first rotating shaft 31 is rotatably arranged above the reaction tube 2, the first rotating shaft 31 is coaxially arranged outside the first rotating shaft 31, and the connecting tube 35 is coaxially arranged outside the first one-way bearing 36, that is, the first rotating shaft 31 drives the connecting tube 35 to rotate in one direction. The first connecting rod 33 is fixedly connected between the connecting tube 35 and the inner tube 12. The second rotating shaft 32 is rotatably arranged in the reaction tube 2, and the first rotating shaft 31 and the second rotating shaft 32 are connected through the second one-way bearing 37; the second connecting rod 34 is arranged between the second rotating shaft 32 and the blocking piece 24.

[0053] When in use, the first rotating shaft 31 is first driven to rotate, and the first rotating shaft 31 drives the inner cylinder 12 to rotate through the first connecting rod 33, so that the first through hole 1221 is aligned with the second through hole 22, so that the reactant gel and the activator gel enter the reaction cylinder 2. Then the first rotating shaft 31 is rotated again, so that the first through hole 1221 is misaligned with the second through hole 22. Then the first rotating shaft 31 is driven to rotate in the opposite direction, and the second rotating shaft 32 is driven to rotate, and the second rotating shaft 32 drives the baffle 24 to rotate, so that the baffle 24 leaves the third through hole 23, and the slow-release gel enters the reaction cylinder 2.

[0054] Reference Figure 6 , an extrusion assembly 4 is provided in both the reactant gel storage compartment and the activator gel storage compartment. The extrusion assembly 4 includes an extrusion plate 41, an elastic member 42 and a positioning protrusion 43. The extrusion plate 41 is rotatably arranged relative to the outer cylinder 11, and the elastic member 42 is arranged between the extrusion plate 41 and the second partition plate 112. In this application example, the elastic member 42 is a spring, and the elastic member 42 drives the extrusion plate 41 to move in a direction away from the elastic member 42. The positioning protrusion 43 is fixedly arranged on the inner cylinder 12, and the fixed protrusion is located on the movement path of the extrusion plate 41, and the positioning protrusion 43 abuts against the side of the extrusion plate 41 away from the elastic member 42. It should be noted that along the rotation direction of the inner cylinder 12, the second through hole 22 is located at a position away from the second partition plate 112, that is, as the inner cylinder 12 rotates, the first through hole 1221 farthest from the second partition plate 112 is first aligned with the second through hole 22. The extrusion plate 41 is arranged on the second partition plate 112, that is, the initial position of the extrusion plate 41 is also located at a position away from the second through hole 22. As the inner cylinder 12 rotates, the positioning protrusion 43 rotates, and the elastic member 42 pushes the squeezing plate 41 to move. The squeezing plate 41 squeezes the gel, so that the gel enters the reaction cylinder 2 smoothly.

[0055] Reference Figure 4 , the second rotating shaft 32 is axially fixedly connected with a stirring rod 321, and the stirring rod 321 is located near the bottom of the reaction tube 2. The inner wall of the reaction tube 2 is provided with a friction part. In this application example, the friction part is a block (not shown in the figure) embedded in the inner wall of the inner tube 12 with a friction coefficient greater than the inner wall material of the reaction tube 2. When the baffle 24 rotates to a position completely away from the third through hole 23, the friction force generated by the contact between the baffle 24 and the friction part is greater than the friction force between the baffle 24 and the inner wall of the reaction tube 2. After the reactant gel and the activator gel enter the reaction tube 2, the first rotating shaft 31 is rotated in the opposite direction to drive the second rotating shaft 32 to rotate, and the second rotating shaft 32 drives the stirring rod 321 to rotate so that the reactant gel and the activator gel are evenly mixed. It should be noted that the second rotating shaft 32 drives the stirring rod 321 to rotate quickly, slow down the speed after stirring for a few rounds, stop rotating after feeling obvious friction, and stop rotating after stopping rotating. The baffle 24 does not block the third through hole 23, so that the slow-release gel can be spread on the bottom gel.

[0056] The implementation principle of the application example of the present application is as follows: when disinfection is required, the first rotating shaft 31 is rotated, the first rotating shaft 31 drives the connecting tube 35 to rotate through the first one-way bearing 36, and the connecting tube 35 drives the inner cylinder 12 to rotate through the first connecting rod 33, so that the first group of first through holes 1221 are aligned with the second through holes 22, and the reactant gel and the activator gel enter the reaction cylinder 2 through the first through holes 1221 and the second through holes 22. After the position of the inner cylinder 12 is maintained at the current state for a specified time, the first rotating shaft 31 is rotated in the same direction again, so that the first through holes 1221 pass over the second through holes 22. Then, the first rotating shaft 31 is rotated in the opposite direction. The first rotating shaft 31 drives the second rotating shaft 32 to rotate through the second one-way bearing 37. The second rotating shaft 32 drives the stirring rod 321 to rotate so that the reactant gel and the activator gel are evenly mixed. After 3 or 4 rounds of rapid stirring, the rotation is slowly rotated and then stopped after obvious friction is felt. After stopping, the blocking piece 24 does not block the third through hole 23, so that the sustained-release gel enters the reaction tube 2 through the third through hole 23 and is spread on the bottom gel. After stopping for a set time, the first rotating shaft 31 is rotated so that the blocking piece 24 blocks the third through hole 23.

[0057] After the set time is reached, the above operation is repeated again, so that the second group of first through holes 1221 are opposite to the second through holes 22, and the above process is repeated. On the one hand, excessive chlorine dioxide is avoided, and on the other hand, the convenience of storage and use is improved, and there is no need to add disinfectant multiple times.

[0058] This specific embodiment is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make modifications to the present embodiment without any creative contribution as needed, but such modifications are protected by the patent law as long as they are within the scope of the claims of the present application.

Claims

1. A slow-release chlorine dioxide disinfectant, characterized in that: It includes reactant gel, activator gel and sustained-release gel; The reactant gel comprises the following raw materials in parts by weight: 450-500 parts of sodium chlorite, 100-130 parts of xanthan gum, 30-50 parts of agar, 5-30 parts of water, and 20-40 parts of sodium chloride; The activator gel comprises the following raw materials in parts by weight: 150-180 parts of high molecular water-absorbing resin, 30-50 parts of polyvinyl alcohol, 320-350 parts of tartaric acid, and 7-45 parts of water; The sustained-release gel comprises the following raw materials in parts by weight: 250-300 parts of high molecular water-absorbing resin.

2. A sustained-release chlorine dioxide disinfectant according to claim 1, characterized in that: The weight ratio of the xanthan gum in the reactant gel to the high molecular water-absorbing resin in the activator gel and to the high molecular water-absorbing resin in the sustained-release gel is 1:(0.9-1.0).

3. A sustained-release chlorine dioxide disinfectant according to claim 1, characterized in that: The xanthan gum is modified xanthan gum, and the modification method thereof is as follows: 1) dissolving xanthan gum in water to obtain a xanthan gum solution; 2) dissolving N-stearoyl glycine in dimethyl sulfoxide to obtain a modified solution; 3) Add the modified solution to the xanthan gum solution, then add potassium persulfate as an initiator in an oxygen-free environment at 50-70°C and react for 3-5 hours; 4) After the reaction is completed, the reactants are poured into ethanol for precipitation and washing, and then dried at 30-70°C for 4-8 hours to obtain modified xanthan gum.

4. A sustained-release chlorine dioxide disinfectant according to claim 3, characterized in that: The weight ratio of the xanthan gum to N-stearoyl glycine is 200:(2-5).

5. A sustained-release chlorine dioxide disinfectant according to claim 1, characterized in that: The preparation method of the reactant gel is as follows: xanthan gum, sodium chlorite, sodium chloride and agar are mixed and then ground, and the ground powder is added into water while stirring, and the mixture is allowed to stand for 2 hours to form a reactant gel; The preparation method of the activator gel is as follows: polyvinyl alcohol and tartaric acid are dissolved in water to obtain a mixed solution, and then a high molecular water-absorbing resin is added into the mixed solution and soaked for 3 minutes to form the activator gel.

6. A disinfection device, characterized in that: It comprises a reaction cylinder (2) and a storage cylinder (1), wherein the storage cylinder (1) stores the slow-release chlorine dioxide disinfectant according to any one of claims 1 to 5; The material storage cylinder (1) comprises an outer cylinder (11) and an inner cylinder (12); there is a material storage interval between the outer cylinder (11) and the inner cylinder (12); a first partition plate (111) is arranged between the outer cylinder (11) and the inner cylinder (12) to divide the material storage interval into upper and lower parts; the upper part of the first partition plate (111) is a slow-release gel material storage interval; a second partition plate (112) is arranged below the first partition plate (111) to divide the lower part of the first partition plate (111) into a reactant gel material storage interval and an activator gel material storage interval; the reaction cylinder (2) is arranged in the inner cylinder (12), and the reaction cylinder (2) and the inner cylinder (12) rotate relative to each other; The inner cylinder (12) is provided with a plurality of first through holes (1221), the reaction cylinder (2) is provided with a second through hole (22), and the first through holes (1221) and the second through holes (22) are connected to the reactant gel storage compartment and the reaction cylinder (2) and to the activator gel storage compartment and the reaction cylinder (2); The inner cylinder (12) comprises a connecting rod (121) and a cylinder wall (122) connected in series, the connecting rod (121) is opposite to the slow-release gel storage space, and the cylinder wall (122) is opposite to the storage space below the first partition plate (111); a plurality of third through holes (23) are provided on the reaction cylinder (2), and the third through holes (23) connect the slow-release gel storage space and the reaction cylinder (2); a plurality of blocking sheets (24) for blocking the third through holes (23) are provided in the reaction cylinder (2); A driving assembly (3) is arranged between the reaction cylinder (2) and the storage cylinder (1), and the driving assembly (3) successively drives the storage cylinder (1) and the baffle (24) to rotate.

7. A disinfection device according to claim 6, characterized in that: The driving assembly (3) comprises a first rotating shaft (31), a second rotating shaft (32), a first connecting rod (33), a plurality of second connecting rods (34), a connecting tube (35), a first one-way bearing (36) and a second one-way bearing (37); the first rotating shaft (31) is rotatably arranged above the reaction tube (2); the connecting tube (35) is sleeved on the first rotating shaft (31); the first one-way bearing (36) is arranged between the first rotating shaft (31) and the connecting tube (35), that is, the first rotating shaft (31) drives the connecting tube (35) to rotate in one direction; the first connecting rod (33) is arranged between the connecting tube (35) and the inner tube (12); the second rotating shaft (32) is arranged in the reaction tube (2); the first rotating shaft (31) and the second rotating shaft (32) are connected via the second one-way bearing (37); the second connecting rod (34) is arranged between the second rotating shaft (32) and the blocking piece (24).

8. A disinfection device according to claim 7, characterized in that: An extrusion assembly (4) is arranged in each of the reactant gel storage compartment and the activator gel storage compartment. The extrusion assembly (4) comprises an extrusion plate (41), an elastic member (42) and a positioning protrusion (43). The extrusion plate (41) is rotatably arranged relative to the outer cylinder (11). The elastic member (42) is arranged between the extrusion plate (41) and the second partition plate (112). The elastic member (42) drives the extrusion plate (41) to move in a direction away from the elastic member (42). The positioning protrusion (43) is fixedly arranged on the inner cylinder (12). The fixed protrusion is located on the movement path of the extrusion plate (41), and the positioning protrusion (43) abuts against a side of the extrusion plate (41) away from the elastic member (42).

9. A disinfection device according to claim 7, characterized in that: The second rotating shaft (32) is provided with a stirring rod (321).

10. A disinfection device according to claim 9, characterized in that: The inner wall of the reaction cylinder (2) is provided with a friction portion, and when the baffle (24) rotates to a position completely away from the third through hole (23), the friction force generated by the contact between the baffle (24) and the friction portion is greater than the friction force between the baffle (24) and the inner wall of the reaction cylinder (2).

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