An air purification composition containing diatom pure negative ion particles and a preparation method thereof

Abstract

The application discloses a kind of air purification compositions containing diatom pure negative ion particles and preparation method thereof, belong to air purification technical field, including first component and second component, the first component includes the following weight fraction of raw material component: diatomite 35~45 parts, tourmaline 15~20 parts, nano photocatalyst 6~9 parts;The second component includes the following weight fraction of raw material component: photocatalyst 6~9 parts, CLO purification factor 5~8 parts, sea sponges 20~25 parts, attapulgite 35~45 parts, diatomite 20~25 parts;The mass ratio of the first component and second component is 3~4:1.The application has the adsorption and decomposition function to harmful substance in air, is not easy to adsorb saturation, can be reused, also will not produce secondary pollution;Small particle material bagging device is used in its preparation method, and the operation is simple, and application is convenient, can effectively prevent material leakage when filling.

Description

Technical Field

[0001] This invention relates to the field of air purification technology, specifically to an air purification composition containing diatomaceous earth pure negative ion particles and its preparation method. Background Technology

[0002] In recent years, increasingly serious environmental pollution and growing environmental awareness have made environmental purification a research and development project of great concern. With continuous industrial development, factories are emitting more and more pollutants into the air, leading to increased emphasis on air quality purification. This has resulted in the production of many air purification materials, such as activated carbon and photocatalytic sprays. However, activated carbon granulation is incomplete in removing harmful gases, as it is prone to re-emitting after saturation, causing secondary air pollution. Furthermore, its function is limited, resulting in low application value. Photocatalytic sprays are expensive and, being applied to the air, only temporarily address the release of harmful gases like formaldehyde, failing to address the fundamental problem of indoor air pollutants that can persist for 3-15 years. Therefore, there is a need to develop new air purification materials that offer advantages such as high-efficiency air purification and prevention of secondary pollution.

[0003] The production process of air purification products generally includes steps such as raw material selection, raw material crushing and grinding, mixing, shaping, and bagging. Currently, the existing bagging equipment has a relatively complex structure, is cumbersome to operate, and is prone to material leakage during filling. Summary of the Invention

[0004] 1. Technical problems to be solved

[0005] The technical problem to be solved by the present invention is to provide an air purification composition containing diatomaceous earth pure negative ion particles and its preparation method, which has the function of adsorbing and decomposing harmful substances in the air, is not easily saturated, can be reused, and will not produce secondary pollution; the small particle bagging device used in its preparation method is simple to operate, convenient to use, and can effectively prevent material leakage during filling.

[0006] 2. Technical Solution

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] An air purification composition containing diatomaceous earth pure negative ion particles includes a first component and a second component. The first component comprises diatomaceous earth pure negative ion particles, which are composed of the following raw material components in parts by weight: 35-45 parts diatomaceous earth, 15-20 parts tourmaline, and 6-9 parts nano-photocatalyst. The second component comprises the following raw material components in parts by weight: 6-9 parts photocatalyst, 5-8 parts CLO purification factor, 20-25 parts sepiolite, 35-45 parts attapulgite, and 20-25 parts diatomaceous earth. The mass ratio of the first component to the second component is 3-4:1.

[0009] Furthermore, the diatomaceous earth pure negative ion particles comprise the following raw material components in parts by weight: 40 parts diatomaceous earth, 18 parts tourmaline, and 8 parts nano-photocatalyst; the second component comprises the following raw material components in parts by weight: 8 parts photocatalyst, 6 parts CLO purifying factor, 22 parts sepiolite, 40 parts attapulgite, and 23 parts diatomaceous earth; the mass ratio of the first component to the second component is 4:1.

[0010] The preparation method of the above-mentioned air purification composition containing diatomaceous earth pure negative ion particles is as follows:

[0011] I. The preparation of the first component includes the following steps:

[0012] A1: Select diatomaceous earth materials with adsorption capacity and tourmaline materials with thermoelectric effect;

[0013] A2: The diatomaceous earth material and tourmaline material mentioned in step S1 are purified and then polished separately. The diatomaceous earth is then passed through a 325-mesh sieve, and then modified and activated to expand the pores for later use. The tourmaline is passed through a 400-mesh sieve for later use.

[0014] A3: Weigh the nano-photocatalyst, the activated and expanded diatomaceous earth from step S2, and the sieved tourmaline according to the mass fractions, mix them evenly, and then place them in a high-strength granulator for granulation to obtain mixed particles.

[0015] A4: The mixed particles obtained in step S3 are dried and then activated and calcined to obtain the first component;

[0016] II. The preparation of the second component includes the following steps:

[0017] B1: Select natural mineral materials with adsorption capacity such as sepiolite, attapulgite, and diatomaceous earth, as well as photocatalyst and CLO purification factor materials with decomposition capacity.

[0018] B2: The natural mineral materials of sepiolite, attapulgite and diatomite mentioned in step S1 are purified and then ground separately, and then passed through a 325-mesh sieve.

[0019] B3: Modify the sepiolite, attapulgite and diatomite treated in step S2 respectively, then activate and expand the pores for later use;

[0020] B4: Weigh the photocatalyst and CLO purification factor from step S1, as well as the sepiolite, attapulgite and diatomaceous earth treated in step S3, according to the mass fractions, then mix them together. After mixing evenly, place them in a high-strength granulator for granulation to obtain mixed granules.

[0021] B5: The mixed particles obtained in step S4 are dried and then activated and calcined to obtain the second component;

[0022] 3. Weigh the first component and the second component according to the mass ratio, mix them evenly, and then wrap them with a coating material to obtain the air purification composition containing diatom pure negative ion particles.

[0023] Furthermore, the packaging material described in step three is made of non-woven fabric.

[0024] Step three above uses a small particulate bagging device, the structure of which is as follows:

[0025] The small particulate bagging device includes at least three cylinders arranged in a ring and a material storage box located directly above one of the cylinders. All cylinders have a limiting ring cylinder surrounding an external support frame. The upper end of the limiting ring cylinder is open, and the lower end is closed. The inner side of each of the three cylinders has a limiting disc located at the center of the limiting ring cylinder. A motor shaft is fixedly connected to the bottom of the limiting disc, passing through the bottom surface of the limiting ring cylinder and connected to a rotating motor. At least two longitudinally arranged sliding grooves are evenly spaced on the outer surface of each cylinder. Sliding elements are slidably connected within these grooves, and clips for holding the packaged items are connected to the sliding elements. A bottom plate is located directly below each cylinder, positioned at the bottom of the limiting ring cylinder. The bottom plate is connected to the bottom surface of the cylinder via a spring. A telescopic sleeve is fitted over the spring, with its two ends fixed to the bottom surface of the cylinder and the top surface of the bottom plate, respectively.

[0026] A passive pusher is fixed to the inner side of the corresponding limiting ring at the lower end of the cylinder. The end of the passive pusher facing away from the cylinder is in contact with the side of the limiting disc. Active pushers, which correspond one-to-one with the cylinder, are provided at equal intervals around the periphery of the limiting disc. The length of the active pusher is not greater than the length of the passive pusher. When the cylinder is empty, the bottom surface of the passive pusher is higher than the top surface of the active pusher. An extension plate is fixed to the side of the cylinder opposite to the passive pusher. A guide groove for the extension plate to rotate is provided on the inner ring surface of the limiting ring. A protruding limiting strip is fixed in the guide groove between each pair of adjacent extension plates of the cylinder. The distance between two adjacent limiting strips is just enough to accommodate one extension plate. The bottom of the limiting strip is lower than the bottom of the extension plate.

[0027] The material storage box has a vertically arranged feeding pipe at the bottom, and a valve is provided on the feeding pipe. A sealing cover that can slide up and down along the feeding pipe is slidably connected to the lower part of the feeding pipe. The inner side of the sealing cover is attached to the feeding pipe, and the bottom periphery of the sealing cover is located on the outer side of the cylinder directly below the material storage box. When the first spring is in the initial state, the upper end face of the cylinder is higher than the lower end face of the feeding pipe. When the first spring is in the compressed state, the upper end face of the cylinder is lower than the lower end face of the feeding pipe.

[0028] Furthermore, the sliding member is a roller whose width matches the width of the slide groove. A limiting shaft passes through the center of the roller, and the limiting shaft is vertically connected to a sliding shaft. A sliding groove is formed on the side wall of the slide groove along its length to allow the sliding shaft to slide up and down. The clamp is fixedly connected to the outer end of the limiting shaft. The roller converts the sliding friction between the sliding member and the slide groove into rolling friction, thereby reducing the friction between the sliding member and the slide groove. This helps ensure that the bag pulls the sliding member upwards. The sliding shaft and sliding groove assist in the rolling of the roller and prevent the roller from dislodging from the slide groove.

[0029] Furthermore, the telescopic sleeve includes an outer sleeve fixed to the bottom surface of the cylinder and an inner sleeve fixed to the base plate, wherein the inner surface of the outer sleeve is always in contact with the outer surface of the inner sleeve. The telescopic function of the telescopic sleeve can be achieved by relative sliding between the outer sleeve and the inner sleeve, which is simple and easy to implement.

[0030] Furthermore, the bottom surface of the sealing cover is provided with equally spaced ball bearings around the perimeter of the upper port of the cylinder. The ball bearings reduce friction between the cloth bag and the bottom of the sealing cover, thereby facilitating the movement of the cloth bag into the cylinder.

[0031] Furthermore, an annular groove is formed along the lower part of the feeding pipe, and an annular slider is fixed inside the annular groove on the inner side of the sealing cover. The height of the annular groove is not less than the sum of the height difference between the cylinder and the height of the annular slider. By sliding the annular slider up and down in the annular groove, a sliding connection between the sealing cover and the feeding pipe can be achieved, and the annular slider surrounds the periphery of the feeding pipe, which can further ensure the sealing performance of the sealing cover.

[0032] Furthermore, the material storage box is equipped with a feeding pipe at the top, and a filter plate is attached to the inner wall of the material storage box at the upper part of the box. The filter plate is inclined, and an opening is provided on the side wall of the material storage box corresponding to the lower end of the filter plate, connecting to the lower end of the filter plate. A recycling box is fixed on the material storage box outside the opening, and a large particle receiving trough is provided in the recycling box below the opening. The filter plate can filter the powder stored in the material storage box, thereby ensuring that the particle size of the powder in the material storage box is uniform and meets the standard. Larger particles cannot pass through the filter plate but move along the filter plate to its lower end, and then fall into the receiving trough of the recycling box through the opening, facilitating the recycling and reuse of this part of the powder.

[0033] In steps A2 and B2 of the above preparation method, a grinding device is used during the grinding process, the structure of which is as follows:

[0034] The crushing and grinding device includes an outer casing and an inner crushing column, an outer crushing cylinder, an upper grinding disc, and a lower grinding disc located directly below the upper grinding disc within the outer casing. The inner crushing column is a frustum-shaped cylinder that gradually increases in size from top to bottom. A rotating shaft is vertically and eccentrically fixed inside the inner crushing column. The top and bottom surfaces of the outer crushing cylinder are open. The outer crushing cylinder is fitted around the outer side of the inner crushing column, and the rotating shaft is located on the axis of the outer crushing cylinder. The outer surface of the inner crushing column and the inner surface of the outer crushing cylinder are respectively covered with matching crushing teeth one and crushing teeth two. A flat cylindrical body with a radius equal to the maximum distance between the bottom edge of the inner crushing column and the rotating shaft is fixed at the bottom of the inner crushing column. The fixed limiting plate extends to the outer side of the inner crushing column from the end point corresponding to the minimum distance between the bottom edge of the inner crushing column and the first rotating shaft. The top surface of the portion located on the outer side of the inner crushing column is a slope that gradually decreases from the inner side to the outer side, which allows the material to be ground on the top surface of the fixed limiting plate to roll down the slope to the bottom of the fixed limiting plate, which helps to ensure that the material is completely ground and discharged smoothly. The upper grinding plate is installed at the bottom of the fixed limiting plate, and the lower grinding plate is fixed at the bottom of the outer crushing cylinder. The lower end of the first rotating shaft passes through the center of the fixed limiting plate, the upper grinding plate, and the lower grinding plate in sequence. The center of the lower grinding plate has a discharge port with a diameter larger than that of the first rotating shaft.

[0035] The top surface of the lower grinding disc gradually slopes downwards from its periphery to the center, and the bottom surface of the upper grinding disc gradually slopes downwards from its periphery to the center. The generatrix slope of the bottom surface of the upper grinding disc is greater than that of the top surface of the lower grinding disc. A material grinding channel that gradually narrows from the outside to the inside is formed between the upper and lower grinding discs. Arc-shaped ribs 1, which connect the edge of the discharge port to the connection between the lower grinding disc and the inner side of the outer crushing cylinder, are uniformly fixed on the top surface of the lower grinding disc. The rotation direction of each arc-shaped rib 1 is the same. Arc-shaped ribs 2 81, which connect the center of the upper grinding disc to the periphery of the upper grinding disc, are uniformly fixed on the bottom surface of the upper grinding disc. The rotation direction of each arc-shaped rib 2 81 is the same and opposite to that of the arc-shaped rib 1.

[0036] The outer casing has an annular groove at its inner top for inserting the top of the outer crushing cylinder. A feed pipe, which is bent, is connected to the top surface of the outer casing within the annular groove. A hopper is fixedly connected to the upper end of the feed pipe. A conical collecting hopper is fixed to the bottom of the outer casing, directly below the lower grinding disc. The diameter of the collecting hopper gradually decreases from top to bottom, and a discharge pipe with a switch valve is connected to the bottom of the collecting hopper. An annular support groove is formed at the lower part of the lower grinding disc, and a support sealing plate is fixed to the periphery of the top surface of the collecting hopper within the support groove. One side of the lower grinding disc is provided with… The device has a drive gear, and the lower grinding disc has teeth on its periphery that mesh with the drive gear. A second rotating shaft is coaxially fixed at the center of the drive gear. The lower end of the second rotating shaft is connected to the inner bottom of the outer housing through a common bearing. The upper end of the second rotating shaft passes through the top panel of the outer housing and is connected to the drive motor. A common bearing is provided on the outer housing at the position through which the second rotating shaft passes. Both the upper end of the second rotating shaft and the upper end of the first rotating shaft are fixedly fitted with pulleys located above the top of the outer housing. A transmission belt is wrapped around both pulleys, realizing synchronous and unidirectional drive of the first and second rotating shafts.

[0037] The upper end of the rotating shaft passes through the upper surface of the outer casing, and a sealed bearing is provided on the outer casing at the position through which the rotating shaft passes. The lower end of the rotating shaft extends into the hopper and is connected to the hopper through a common bearing. At least three short support rods connected to the outer side of the upper port of the discharge pipe are fixed at equal intervals on the lower circumference of the common bearing, which can achieve the fixed connection of the common bearing while avoiding obstruction of the powder entering the discharge pipe. A trumpet-shaped baffle is fixedly fitted on the lower part of the rotating shaft. The diameter of the baffle gradually increases from top to bottom, and the bottom diameter of the baffle is larger than the outer diameter of the common bearing. The bottom of the baffle surrounds the outside of the common bearing. The baffle can prevent the powder falling from the discharge port from falling onto the common bearing, so that the powder rolls down along the outer side of the baffle.

[0038] A channel that gradually narrows from top to bottom is formed between the inner crushing column and the outer crushing cylinder. Under the counter-rotation of the inner crushing column and the outer crushing cylinder, the first and second crushing teeth can crush the material step by step, resulting in a good crushing effect. The inner crushing column is eccentrically set, allowing more and larger materials to enter at the larger gap between the inner crushing column and the outer crushing cylinder. For materials with sizes between the minimum and maximum gap between the inner crushing column and the outer crushing cylinder, it can achieve the effect of intermittent feeding, thereby avoiding excessive workload on the inner crushing column and the outer crushing cylinder. The distance between the fixed limiting plate and the outer crushing cylinder is constant. Only when the particle size of the raw material is crushed to be equal to or smaller than the distance between the periphery of the fixed limiting plate and the inner wall of the outer crushing cylinder can the crushed raw material fall onto the lower grinding plate. The raw material that does not meet the standard will remain in the gap between the inner crushing column and the outer crushing cylinder and continue to be crushed, thus ensuring that the material entering the grinding channel has been crushed to the standard. The top surface of the lower grinding disc gradually slopes downwards from its periphery to the center, causing the material entering the grinding channel to move towards the center of the lower grinding disc. During this process, because the width of the grinding channel gradually decreases along the direction of material movement, the material can be effectively squeezed and ground under the counter-rotation of the upper and lower grinding discs. The opposing surfaces of the lower and upper grinding discs are respectively provided with arc-shaped ribs 1 and 2 81 with opposite rotation directions. Under the counter-rotation of the upper and lower grinding discs, the arc-shaped ribs 1 and 2 81 on both sides of the material stuck in the grinding channel can clamp and cut the material, effectively preventing it from getting stuck in the grinding channel and promoting complete grinding. In summary, this device can achieve good crushing and grinding effects, ensuring complete discharge with high uniformity and compliance.

[0039] Furthermore, the bottom of the fixed limiting disk is provided with a mounting groove for mounting the upper grinding disc, the upper grinding disc is slidably connected in the mounting groove, the periphery of the upper grinding disc is formed with an annular sliding plate, and the periphery of the mounting groove is provided with a concave sliding groove for the sliding plate to slide up and down; the annular side of the upper grinding disc surrounding the outer side of the rotating shaft is fixed with sliding blocks at equal intervals, and the rotating shaft is provided with a concave sliding groove that matches the sliding blocks. As the upper grinding disc moves up and down, the sliding plate moves up and down within the first sliding groove, and the sliding block slides within the second sliding groove. This provides a good seal between the upper grinding disc and the fixed limiting disc without affecting the up and down movement of the upper grinding disc, which helps ensure complete material discharge. In addition, multiple sliding blocks are equally spaced and locked in the second sliding groove on the surface of the rotating shaft, thus meeting the requirement that the rotating shaft drives the upper grinding disc to rotate. The upper end face of the upper grinding disc is connected to the bottom surface of the fixed limiting disc through evenly arranged springs. The fixed limiting disc contains an electromagnet, and the upper grinding disc contains a permanent magnet that repels the electromagnet at the corresponding position. In the working state, the repulsive force between the electromagnet and the permanent magnet is always greater than the sum of the elastic force of the second spring and the resistance of the grinding material to the upper grinding disc. This configuration allows the upper grinding disc to slide longitudinally relative to the fixed limiting disc. When the electromagnet is energized, it generates a magnetic repulsion force on the permanent magnet, which overcomes the elastic force of the second spring and pushes the upper grinding disc to the lower grinding disc, thus effectively grinding the material in the grinding channel. By adjusting the energizing current of the electromagnet, the magnitude of the aforementioned magnetic repulsion force can be controlled, thereby adjusting the width of the grinding channel to adapt to materials with different particle size requirements, thereby enhancing the application value of this device.

[0040] 3. Beneficial effects

[0041] (1) The raw materials of the first component of the present invention include diatomaceous earth negative ion particles. Diatomaceous earth has a super large specific surface area and extremely high porosity. Its particle surface has countless tiny pores, which makes diatomaceous earth have extremely strong physical adsorption and ion exchange performance, thus it can efficiently adsorb harmful gases in the air. Diatomaceous earth is pore-shaped according to the size of formaldehyde molecules, which makes diatomaceous earth not only selectively and preferentially adsorb formaldehyde, but also helps to better lock formaldehyde molecules. At the same time, the surface of diatomaceous earth is polar, and for formaldehyde, which is a polar molecule, diatomaceous earth has an active adsorption effect. A nano photocatalyst is added to diatomaceous earth, which can completely decompose the adsorbed harmful gases, effectively avoiding the problems of adsorption saturation and secondary pollution. Tourmaline is added to diatomaceous earth. Tourmaline is a stone that is always charged and has a unique piezoelectric effect and thermoelectric effect, which can ionize the air and generate negative air ions. The negative ion release of 100 mesh tourmaline is 200 IONS. Tourmaline with a mesh size of 325 releases approximately 400 IONS of negative ions, while tourmaline with a mesh size of 1250 can release up to 800 IONS. These negative ions can neutralize pollutants, nitrogen oxides, and active oxygen produced by cigarette smoke, thus freshening the air. Furthermore, tourmaline has the ability to instantly ionize water. It can negatively ionize water produced from the decomposition of harmful gases from chlorine dioxide and water in the air. This negatively ionized water promotes cell activity, maintains reducing power, and is beneficial to human health. Tourmaline also emits far-infrared rays with wavelengths of 4-14 micrometers, often referred to as the "light of life," which are similar in wavelength to the far-infrared rays emitted by the human body. This allows it to resonate effectively with water molecules in the body's cells, promoting cell growth and division, thus endowing air purification materials with health benefits. Therefore, diatomaceous earth pure negative ion particles can automatically and continuously adsorb and eliminate harmful gases such as formaldehyde, benzene, xylene, and TVOC in indoor, car, and other enclosed spaces. They can also sterilize, disinfect, deodorize, prevent mites and lice, and release negative oxygen ions, while effectively avoiding problems such as adsorption saturation and secondary pollution.

[0042] (2) The raw materials of the second component of the present invention include sepiolite, attapulgite and diatomite. Sepiolite is sepiolite powder. Sepiolite is a hydrated magnesium silicate clay mineral that is pure natural, non-toxic, odorless, asbestos-free and free of radioactive elements. It has the largest specific surface area (up to 900 m2 / g) and unique internal pore structure among non-metallic minerals. It is recognized as the clay mineral with the strongest adsorption capacity. Attapulgite has good cation exchangeability, water absorption, adsorption and decolorization, and environmental protection. It has a large specific surface area (9.6~36 m2 / g) as well as colloidal valence and expansion capacity. It has unique dispersion, high temperature resistance, salt and alkali resistance and other good colloidal properties and high adsorption and decolorization capacity. It also has certain plasticity and adhesion. Diatomite is a nano-sized porous material (micropore diameter about 0.1-0.2 micrometers) with a porosity of up to 90%. It is arranged regularly and neatly in circles and needles. The number of micropores per unit area is thousands of times more than that of charcoal. The distinctive molecular lattice structure of diatomaceous earth determines its unique functions. Diatomaceous earth is a diatomaceous mineral formed from the precipitation of diatoms. Diatomaceous earth is a nanoscale porous material (micropore diameter of about 0.1-0.2 micrometers) with a porosity as high as 90%. The pores are arranged regularly and neatly in round and needle-shaped forms, and the number of micropores per unit area is thousands of times greater than that of charcoal. The distinctive molecular lattice structure of diatomaceous earth determines its unique functions. Diatomaceous earth has strong physical adsorption and ion exchange properties. All three of these materials possess well-developed adsorption micropores and strong adsorption capacity; after modification and activation to expand the pores, their adsorption strength can be further enhanced, enabling air purification materials to efficiently adsorb toxic components and other pollutants in the air.

[0043] (3) The raw materials of the second component of the present invention include photocatalyst and CLO purification factor. As a photocatalyst, the photocatalyst can form a photocatalytic layer on the surface of sepiolite, attapulgite and diatomite, thereby forming a thin-shell structure. Sepiolite, attapulgite and diatomite can quickly adsorb, purify and enrich harmful substances in the air, thus accelerating the efficiency of photocatalytic degradation reaction. While the photocatalyst plays a degradation role, it promotes the migration of harmful substances adsorbed in sepiolite, attapulgite and diatomite to the surface of the photocatalyst, thereby realizing the in-situ regeneration of sepiolite, attapulgite and diatomite, thereby improving the reusability of air purification materials and extending the service life of air purification materials. Its outer molecular layer has 19 electrons, which can decompose the harmful gases adsorbed by materials such as sepiolite, attapulgite and coconut shell activated carbon into carbon dioxide and water, thereby preventing the air purification materials from becoming saturated with adsorption, so that the air purification materials can be reused, greatly extending the service life of air purification materials. The photocatalyst and CLO purification factor work together to decompose harmful gases adsorbed by air purification materials into harmless substances in a timely manner.

[0044] (4) The small particle bagging device used in the preparation method of the present invention has at least three cylinders arranged in a ring and a material storage box located directly above one of the cylinders. The material storage box stores air purification particles. During the bagging operation, all the cylinders are located below the material storage box in sequence and in a cycle. Before the cylinder moves to the bottom of the material storage box, a packaging bag is put on the cylinder, with the bag opening facing down. The bagging method is relatively simple. After the cylinder moves to the bottom of the material storage box, the filling of material begins. As the amount of particles in the packaging bag increases, the packaging bag gradually moves into the cylinder. The opening of the packaging bag moves upward along the cylinder. When the packaging bag contains enough particles, the feeding stops and the opening of the packaging bag moves to the top of the cylinder, which is convenient for tying the packaging bag and unloading the bag. Then the cylinder continues to rotate away from the bottom of the material storage box, which is convenient for taking out the packaging bag containing the material. At the same time, the next cylinder just rotates to the bottom of the material storage box for filling operation. The operation is convenient and realizes the cyclical effect of the cylinder, which can improve the work efficiency.

[0045] (5) The small particle bagging device used in the preparation method of the present invention has a bottom plate connected to the bottom of the cylinder by a spring, and a feeding pipe is provided at the bottom of the material storage box. A sealing cover is slidably connected to the lower part of the feeding pipe. In application, when the spring is in the initial state, the upper end face of the cylinder is higher than the lower end face of the feeding pipe; when the spring is in the compressed state, the upper end face of the cylinder is lower than the lower end face of the feeding pipe. During the rising and falling of the cylinder directly below the material storage box, the bottom surface of the sealing cover always abuts against the edge of the upper port of the cylinder, so that the periphery of the upper port of the cylinder achieves a sealing effect due to the sealing cover and the edge of the upper port of the cylinder, which can prevent small particles from falling accidentally, and can prevent small particles from falling accidentally throughout the process.

[0046] (6) The small particle bagging device used in the preparation method of the present invention has a passive pusher and an extension plate on both sides of the cylinder. A limiting disc driven by a rotating motor is provided at the center of the inner area of ​​all cylinders. An active pusher corresponding to the cylinder is fixed on the limiting disc and can push the passive pusher. A limiting ring cylinder is provided on the outer side of all cylinders. A guide groove is provided on the inner ring side of the limiting ring cylinder for the extension plate to rotate around the center of the limiting disc. A limiting strip is clamped between each two adjacent extension plates in the guide groove. During the rotation of the cylinder, the limiting disc pushes the passive pusher through the active pusher, thereby driving the cylinder to rotate. At this time, the first spring is in a compressed state. The bottom of the passive pusher is lower than the top of the active pusher, the top of the extension plate is lower than the bottom of the limiting strip, and the upper port of the cylinder is lower than the lower port of the discharge pipe. When the cylinder with the empty packaging bag rotates to the bottom of the material storage box, the extension plate on the cylinder is no longer limited by the limiting strip. When the second spring returns to its original position, the extension plate on the cylinder is no longer limited by the limiting strip. Under the action of the device, the cylinder and its passive pusher and extension plate rise simultaneously. The passive pusher rises to a position higher than the active pusher, and the top of the extension plate is higher than the bottom of the limiting strip, with the extension plate locked between two adjacent limiting strips. At this time, all cylinders and their related components perform the same action synchronously, disengaging from the push of the active pusher. Although the rotating motor continuously drives the limiting disc to rotate, it does not push the cylinder and its related components to rotate, thus meeting the requirement of stationary cylinder for bagging operations. When enough material is filled into the packaging bag, the pressure exerted on the spring by the cylinder increases, causing the spring to compress. The cylinder and its passive pusher and extension plate descend simultaneously until the bottom of the passive pusher is lower than the top of the active pusher, and the top of the extension plate is lower than the bottom of the limiting strip, allowing the active pusher to push the cylinder to rotate around the center of the limiting disc. In other words, this device achieves the effect of intermittent rotation of the material bagging driven by a continuously rotating motor, meeting the operational requirements of material bagging and being easy to operate.

[0047] (7) The grinding device used in the preparation method of the present invention has an inner grinding column in the shape of a frustum that gradually increases from top to bottom and an outer grinding cylinder located outside the inner grinding column in the outer casing. A channel that gradually narrows from top to bottom is formed between the inner grinding column and the outer grinding cylinder. The outer surface of the inner grinding column and the inner surface of the outer grinding cylinder are respectively covered with matching grinding teeth one and grinding teeth two. Under the reverse rotation of the inner grinding column and the outer grinding cylinder, the material can be crushed step by step, and the crushing effect is better. The inner grinding column is eccentrically set, and at the larger gap between the inner grinding column and the outer grinding cylinder, more and larger materials can enter. For materials with a size between the inner grinding column and the outer grinding cylinder, the material can be crushed step by step. The material between the minimum and maximum spacing between the inner and outer crushing cylinders can achieve the effect of intermittent feeding, thereby avoiding excessive workload on the inner and outer crushing cylinders. The bottom of the inner crushing cylinder is fixed with a flat cylindrical fixed limiting disk with a radius equal to the maximum distance between the bottom edge of the inner crushing cylinder and the rotating shaft. Only when the particle size of the raw material is crushed to be equal to or smaller than the distance between the periphery of the fixed limiting disk and the inner wall of the outer crushing cylinder can the crushed raw material fall onto the lower grinding disc. The unqualified raw material will remain in the gap between the inner crushing cylinder and the outer crushing cylinder and continue to be crushed, thereby ensuring that the material entering the grinding channel has been crushed to the required standard.

[0048] (8) The grinding and crushing device of the present invention has an upper grinding disc installed at the bottom of the fixed limiting disc and a lower grinding disc located directly below it in the outer casing. The top surface of the lower grinding disc gradually decreases from its periphery to the center, so that the material entering the grinding channel will move to the center of the lower grinding disc. During this process, because the width of the grinding channel gradually decreases along the direction of material movement, the material can be better squeezed and ground under the reverse rotation of the upper and lower grinding discs. The opposing surfaces of the lower and upper grinding discs are respectively provided with arc-shaped ribs one and two arc-shaped ribs with opposite rotation directions. Under the reverse rotation of the upper and lower grinding discs, the arc-shaped ribs one and two arc-shaped ribs on both sides of the material stuck in the grinding channel can squeeze and cut the material, thereby effectively preventing the material from getting stuck in the grinding channel and promoting the complete grinding of the material.

[0049] (9) The grinding and crushing device of the present invention sets the connection between the upper grinding disc and the fixed limiting disc as a sliding connection, and the fixed limiting disc is provided with an electromagnet, and the upper grinding disc is provided with a permanent magnet that repels the magnetism of the electromagnet. Under the action of the magnetic repulsion force, the grinding channel can satisfy the squeezing effect on the material. By adjusting the current supplied to the electromagnet, the width of the grinding channel can be controlled to adapt to the grinding operation that requires grinding different particle sizes, thereby improving the application value.

[0050] (10) The feed pipe of the crushing and grinding device of the present invention is a bent pipe, which can prevent the dust generated by the material during the crushing and grinding process from escaping; the top of the outer crushing cylinder is inserted into the annular rotating groove at the top of the outer box, and the top surface of the collecting hopper is fixed with a supporting sealing plate inserted into the supporting rotating groove at the bottom of the lower grinding disc, and the top of the rotating shaft is provided with a sealing bearing at the position where it passes through the outer box, so that the dust generated during the crushing and grinding process is only stored in the outer crushing cylinder, the supporting sealing plate and the other sides of the collecting hopper, and will not move to other spaces inside the outer box, which is convenient for the unified treatment of dust and also beneficial for maintaining other spaces inside the outer box.

[0051] In summary, this invention has the function of adsorbing and decomposing harmful substances in the air, is not easily saturated, can be reused, and will not produce secondary pollution; the small particle bagging device used in its preparation method is simple to operate and easy to use, and can effectively prevent material leakage during filling; the crushing and grinding device used in its preparation method can achieve a good crushing and grinding effect, can ensure complete discharge, and has a high degree of uniformity and compliance of discharge. Attached Figure Description

[0052] Figure 1 This is a schematic diagram of the cross-sectional structure of the small particulate bagging device of the present invention, cut along the transverse center line of the limiting ring cylinder 30.

[0053] Figure 2 A top view showing the structure of the cylinder 10 and its driving mechanism;

[0054] Figure 3 for Figure 1 An enlarged schematic diagram of the structure excluding the material storage box 20;

[0055] Figure 4 for Figure 3 Schematic diagram of the structure of region A in the middle;

[0056] Figure 5 This is a schematic diagram of the structure of the limiting strip 32;

[0057] Figure 6 This is a schematic diagram of the structure of the slider 12 and the clip 13;

[0058] Figure 7 This is a schematic diagram of the pulverizing and grinding device of the present invention;

[0059] Figure 8 for Figure 7 Enlarged structural diagram of region B in the middle;

[0060] Figure 9 Figure (a) is a top view of the upper grinding disc 80, and Figure (b) is a top view of the lower grinding disc 90.

[0061] Figure 10 This is a top view showing the connection structure between the upper grinding disc 80 and the rotating shaft 61.

[0062] Reference numerals: 1. Rotating motor; 2. Limiting shaft; 3. Sliding shaft; 4. Recycling box; 5. Large particle receiving tank; 6. Sliding groove; 10. Cylinder; 11. Sliding groove; 12. Sliding component; 13. Clamp; 14. Base plate; 15. Spring 1; 16. Telescopic sleeve; 161. Outer sleeve; 162. Inner sleeve; 17. Passive push block; 18. Extension plate; 20. Material storage box; 21. Feeding pipe; 22. Valve; 23. Sealing cover; 24. Ball bearing; 25. Annular groove; 26. Annular slider; 27. Feeding pipe; 28. Filter plate; 29. ​​Through port; 30. Limiting ring cylinder; 31. Guide groove; 32. Limiting strip; 40. Limiting disc; 41. Active push block; 50. Outer casing; 51. Annular rotating groove; 52. Sealed bearing; 53. Ordinary bearing one; 54. Ordinary bearing two; 55. Supporting short rod; 56. Pulley; 57. Transmission belt; 58. Baffle; 60. Inner crushing column; 61. Rotating shaft one; 62. Crushing tooth one; 70. Outer crushing cylinder; 71. Crushing tooth two; 80. Upper grinding disc; 81. Arc-shaped rib two; 82. Sliding plate; 83. Sliding block; 90. Lower grinding disc; 91. Discharge port; 92. Arc-shaped rib one; 93. Supporting rotating groove; 100. Fixed limiting disc; 101. Inclined surface; 102. Mounting slot; 103. Slide 1; 104. Slide 2; 105. Spring 2; 106. Electromagnet; 107. Permanent magnet; 110. Grinding channel; 111. Feed pipe; 112. Hopper; 113. Collecting hopper; 114. Discharge pipe; 115. Switch valve; 116. Support sealing plate; 117. Drive gear; 118. Rotating shaft 2; 119. Drive motor. Detailed Implementation

[0063] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0064] Example 1 An air purification composition containing diatomaceous earth pure negative ion particles, comprising a first component and a second component. The raw material components of the first component include diatomaceous earth pure negative ion particles, which comprise the following raw material components in parts by weight: 40 parts diatomaceous earth, 18 parts tourmaline, and 8 parts nano-photocatalyst. The second component comprises the following raw material components in parts by weight: 8 parts photocatalyst, 6 parts CLO purification factor, 22 parts sepiolite, 40 parts attapulgite, and 23 parts diatomaceous earth. The mass ratio of the first component to the second component is 4:1.

[0065] The preparation method of the above-mentioned air purification composition containing diatomaceous earth pure negative ion particles is as follows:

[0066] I. The preparation of the first component includes the following steps:

[0067] A1: Select diatomaceous earth materials with adsorption capacity and tourmaline materials with thermoelectric effect;

[0068] A2: The diatomaceous earth material and tourmaline material mentioned in step S1 are purified and then polished separately. The diatomaceous earth is then passed through a 325-mesh sieve, and then modified and activated to expand the pores for later use. The tourmaline is passed through a 400-mesh sieve for later use.

[0069] A3: Weigh the nano-photocatalyst, the activated and expanded diatomaceous earth from step S2, and the sieved tourmaline according to the mass fractions, mix them evenly, and then place them in a high-strength granulator for granulation to obtain mixed particles.

[0070] A4: The mixed particles obtained in step S3 are dried and then activated and calcined to obtain the first component;

[0071] II. The preparation of the second component includes the following steps:

[0072] B1: Select natural mineral materials with adsorption capacity such as sepiolite, attapulgite, and diatomaceous earth, as well as photocatalyst and CLO purification factor materials with decomposition capacity.

[0073] B2: The natural mineral materials of sepiolite, attapulgite and diatomite mentioned in step S1 are purified and then ground separately, and then passed through a 325-mesh sieve.

[0074] B3: Modify the sepiolite, attapulgite and diatomite treated in step S2 respectively, then activate and expand the pores for later use;

[0075] B4: Weigh the photocatalyst and CLO purification factor from step S1, as well as the sepiolite, attapulgite and diatomaceous earth treated in step S3, according to the mass fractions, then mix them together. After mixing evenly, place them in a high-strength granulator for granulation to obtain mixed granules.

[0076] B5: The mixed particles obtained in step S4 are dried and then activated and calcined to obtain the second component;

[0077] 3. Weigh the first component and the second component according to the mass ratio, mix them evenly, and then wrap them with a coating material to obtain the air purification composition containing diatom pure negative ion particles.

[0078] Furthermore, the packaging material described in step three is made of non-woven fabric.

[0079] Step three above uses a small particulate bagging device, the structure of which is as follows:

[0080] like Figure 1 and Figure 2 As shown, the small particulate bagging device includes at least three cylinders 10 arranged in a ring (in this embodiment, there are three cylinders 10, corresponding to the bagging station, filling station, and unloading station respectively) and a material storage box 20 located directly above one of the cylinders 10 (filling station), as shown. Figure 3 and Figure 4 As shown, all the cylinders 10 are provided with a limiting ring cylinder 30 (the support is not shown in the figure) that surrounds the external connecting support of the three cylinders 10. The upper end face of the limiting ring cylinder 30 is open, and the lower end face of the limiting ring cylinder 30 is closed. The inner side of the three cylinders 10 is provided with a limiting disk 40 at the center of the limiting ring cylinder 30. The bottom of the limiting disk 40 is fixedly connected to a motor shaft. The motor shaft passes through the bottom surface of the limiting ring cylinder 30 and is connected to a rotating motor 1. The outer surface of the cylinders 10 is evenly spaced around the periphery. At least two longitudinally arranged sliding grooves 11 are provided at the opening, and sliding members 12 are slidably connected in the sliding grooves 11. Clips 13 for holding the package are connected to the sliding members 12. A bottom plate 14 is provided directly below the cylindrical body 10 and placed at the bottom of the limiting ring cylinder 30. The bottom plate 14 is connected to the bottom surface of the cylindrical body 10 by a spring 15. A telescopic sleeve 16 is provided on the outer sleeve of the spring 15. The two ends of the telescopic sleeve 16 are respectively fixed to the bottom surface of the cylindrical body 10 and the top surface of the bottom plate 14.

[0081] like Figure 2 and Figure 3 As shown, a passive pusher 17 is fixed to the inner radial direction of the lower end of the cylinder 10 at its corresponding limiting ring cylinder 30. The end of the passive pusher 17 facing away from the cylinder 10 just contacts the side of the limiting disc 40. Active pushers 41, corresponding one-to-one with the cylinder 10, are evenly spaced around the periphery of the limiting disc 40. The length of the active pusher 41 is not greater than the length of the passive pusher 17. When the cylinder 10 is empty, the bottom surface of the passive pusher 17 is higher than the top surface of the active pusher 41. An extension plate 18 is fixed to the side of the cylinder 10 opposite to the passive pusher 17. A guide groove 31 for the extension plate 18 to rotate is opened on the inner ring surface of the limiting ring cylinder 30. Figure 2 , Figure 4 and Figure 5 As shown, a protruding limiting strip 32 is fixed in the guide groove 31 between each two adjacent extension plates 18 of the cylinder 10. The distance between two adjacent limiting strips 32 is just enough to accommodate one extension plate 18. The bottom of the limiting strip 32 is lower than the bottom of the extension plate 18.

[0082] like Figure 1 and Figure 3As shown, the material storage box 20 has a vertically arranged feeding pipe 21 at its bottom. The feeding pipe 21 is equipped with a valve 22. A sealing cover 23 that can slide up and down along the feeding pipe 21 is slidably connected to the lower part of the feeding pipe 21. The inner side of the sealing cover 23 is attached to the feeding pipe 21. The bottom periphery of the sealing cover 23 is located on the outer side of the cylinder 10 directly below the material storage box 20. When the spring 15 is in the initial state, the upper end face of the cylinder 10 is higher than the lower end face of the feeding pipe 21. When the spring 15 is in the compressed state, the upper end face of the cylinder 10 is lower than the lower end face of the feeding pipe 21.

[0083] To ensure that the cloth bag can pull the slider 12 upward, such as Figure 6 As shown, the sliding member 12 is a roller whose width matches the width of the slide groove 11. A limiting shaft 2 passes through the center of the roller, and a sliding shaft 3 is vertically connected to the limiting shaft 2. A sliding groove 6 is formed on the side wall of the slide groove 11 along its length direction to allow the sliding shaft to slide up and down. The clamp 13 is fixedly connected to the outer end of the limiting shaft 2. The roller can convert the sliding friction between the sliding member 12 and the slide groove 11 into rolling friction, thereby reducing the friction between the sliding member 12 and the slide groove 11. This helps to ensure that the bag can pull the sliding member 12 upward. The setting of the sliding shaft 3 and the sliding groove 6 can assist in realizing the rolling of the roller and prevent the roller from disengaging from the slide groove 11.

[0084] To specifically realize the limiting function of the telescopic sleeve 16 on the spring 15 and its own telescopic function, such as Figure 4 As shown, the telescopic sleeve 16 includes an outer sleeve 161 fixed to the bottom surface of the cylinder 10 and an inner sleeve 162 fixed to the base plate 14. The inner surface of the outer sleeve 161 is always in contact with the outer surface of the inner sleeve 162. The telescopic function of the telescopic sleeve 16 can be realized by the relative sliding between the outer sleeve 161 and the inner sleeve 162, which is simple and easy to implement.

[0085] To facilitate the movement of the cloth bag into the cylinder 10, such as Figure 3 As shown, the bottom surface of the sealing cover 23 is provided with equally spaced ball bearings 24 around the periphery of the upper port of the cylinder 10. The ball bearings 24 can reduce the friction between the cloth bag and the bottom of the sealing cover 23, making it easier for the cloth bag to move into the cylinder 10.

[0086] To achieve a sliding connection between the sealing cover 23 and the feed pipe 21, such as Figure 3As shown, an annular groove 25 is formed along the lower part of the feed pipe 21. An annular slider 26 is fixed inside the annular groove 25 on the inner side of the sealing cover 23. The height of the annular groove 25 is not less than the sum of the height difference between the lifting and lowering of the cylinder 10 and the height of the annular slider 26. By sliding the annular slider 26 up and down in the annular groove 25, a sliding connection between the sealing cover 23 and the feed pipe 21 can be achieved. Furthermore, the annular slider 26 surrounds the feed pipe 21, which can further ensure the sealing performance of the sealing cover 23.

[0087] To ensure precise uniformity of the particle size of the powder to be filled, such as Figure 1 As shown, the material storage box 20 is equipped with a feeding pipe 27 at the top. A filter plate 28 is attached to the inner wall of the material storage box 20 at its upper part. The filter plate 28 is inclined, and an opening 29 is provided on the side wall of the material storage box 20 corresponding to the lower end of the filter plate 28, connecting to the lower end of the filter plate 28. A recycling box 4 is fixed on the material storage box 20 outside the opening 29. The recycling box 4 contains a large particle receiving trough 5 located below the opening 29. The filter plate 28 filters the powder stored in the material storage box 20, ensuring that the particle size of the powder in the material storage box 20 is uniform and meets the standards. Larger particles cannot pass through the filter plate 28 but move along the filter plate 28 towards its lower end, then fall into the receiving trough of the recycling box 4 through the opening 29, facilitating the recycling and reuse of this portion of the powder.

[0088] The specific working process of the above-mentioned small particulate matter bagging device is as follows:

[0089] The mixed particles of the first and second components are fed into the material storage box 20 through the feeding pipe 27. The mixed particles fall onto the filter plate 28. Larger particles cannot pass through the filter plate 28 and move along the filter plate 28 towards its lower end. Then, they enter the recycling box 4 through the opening 29 and finally fall into the large particle receiving tank 5, so as to facilitate the recycling and reuse of the larger particles. Smaller particles pass through the filter plate 28 and fall into the material storage box 20. When bagging the mixed particles, a packaging bag (preferably a non-woven fabric bag) is placed on the cylinder 10 at the bagging station. Note that the opening of the packaging bag should face down and be clamped with the clip 13. Then, the rotating motor 1 is started, and the limiting disc 40 is directly driven through the motor shaft. When the device is rotated, the active push block 41 rotates accordingly, which can push the passive push block 17, causing the three cylinders 10 to rotate simultaneously around the center of the limiting disc 40. The cylinder 10 rotates the bottom plate 14 directly below it through the telescopic sleeve 16 and the spring 15. (When using it for the first time, all three cylinders 10 need to be pressed down at the same time so that the extension plate 18 is below the limiting strip 32, so that the cylinders 10 can rotate around the limiting disc 40; or when installing the device, a packaging bag is put on the cylinders 10 at the filling station. When using it, the bag is put in first and then the rotating motor 1 is started, so that it is not necessary to press the three cylinders 10 at the same time.)

[0090] When the cylinder 10 at the bagging station rotates to the filling station, the extension plate 18 on the cylinder 10 is no longer limited by the limiting strip 32. Under the reset action of the spring 2, the cylinder 10, its passive push block 17, and the extension plate 18 rise simultaneously. The passive push block 17 rises to a position higher than the active push block 41, and the extension plate 18 is stuck between two adjacent limiting strips 32. At this time, the three cylinders 10 and their related components perform the same action synchronously, and simultaneously disengage from the push of the active push block 41, although the rotating motor 1 continues to drive the limiting disc 40 to rotate. However, it will not cause the cylinder 10 and its related components to rotate, which can meet the requirements of the cylinder 10 being stationary for bagging operation; the cylinder 10 rises until the upper port of the cylinder 10 is sleeved on the outer side of the lower end of the feed pipe 21, and the upper port of the cylinder 10 is attached to the bottom surface of the sealing cover 23 along the edge and pushes the sealing cover 23 to move upward along the feed pipe 21, so that the lower port of the feed pipe 21 is located inside the cylinder 10, and the periphery is sealed due to the sealing cover 23 and the sealing connection with the upper port edge of the cylinder 10, which can prevent small particles of material from falling accidentally;

[0091] Open the valve on the feed pipe 21, and small granular materials fall into the packaging bag along the feed pipe 21. As the amount of granules in the packaging bag increases, the packaging bag gradually moves into the cylinder 10. The opening of the packaging bag moves upward along the cylinder 10, and the sliding member 12 is pulled upward along the slide groove 11 by the clamp 13. When the packaging bag is filled with enough granules, close the valve, and the opening of the packaging bag moves to the upper end of the cylinder 10, which facilitates the sealing and unloading of the packaging bag. At the same time, the pressure applied to the spring 2 by the cylinder 10 increases, causing the spring to compress. The cylinder 10, the passive push block 17, and the extension plate 18 on it all descend simultaneously until the bottom of the passive push block 17 is lower than the active push block 4. The top of the extension plate 18 is lower than the bottom of the limiting strip 32, allowing the active pusher 41 to push the cylinder 10 to rotate around the center of the limiting disc 40; the cylinder 10 descends to a position where its upper port is lower than the lower port of the feed pipe 21. During the descent of the cylinder 10, the sealing cover 23 always abuts against the edge of the upper port of the cylinder 10 under its own gravity, which can prevent small particles from falling accidentally throughout the process; the three cylinders 10 and their related components perform the same action synchronously, and establish a relationship of being pushed by the active pusher 41. When the active pusher 41 rotates to abut against the corresponding passive pusher 17, the three cylinders 10 can be driven to rotate simultaneously through the passive pusher 17.

[0092] When the cylinder 10 at the filling station rotates to the unloading station, the next cylinder 10 rotates to the filling station. All three cylinders 10 simultaneously disengage from the active pusher 41. This allows the packaging bag containing material in the cylinder 10 at the unloading station to be sealed (first loosen the clamp 13, then seal) and removed. Simultaneously, material is filled into the cylinder 10 at the filling station. This convenient operation achieves a cyclical function of the cylinders 10.

[0093] As can be seen from the above, the small particle bagging device of the present invention is simple to operate, convenient to use, and can effectively prevent material leakage during filling.

[0094] In steps A2 and B2 of the above preparation method, a grinding device is used during the grinding process, the structure of which is as follows:

[0095] like Figure 7As shown, the crushing and grinding device includes an outer housing 50 and an inner crushing column 60, an outer crushing cylinder 70, an upper grinding disc 80, and a lower grinding disc 90 located directly below the upper grinding disc 80, all disposed within the outer housing 50. The inner crushing column 60 is a frustum-shaped cylinder that gradually increases in size from top to bottom. A rotating shaft 61 is vertically and eccentrically fixed inside the inner crushing column 60. The top and bottom surfaces of the outer crushing cylinder 70 are open. The outer crushing cylinder 70 is fitted around the outer side of the inner crushing column 60, and the rotating shaft 61 is located on the axis of the outer crushing cylinder 70. The outer surface of the inner crushing column 60 and the inner surface of the outer crushing cylinder 70 are respectively covered with matching crushing teeth 62 and 71. A fixed limiting disc 100, which is a flat cylindrical shape with a radius equal to the maximum distance between the bottom edge of the inner crushing column 60 and the rotating shaft 61, is fixed to the bottom of the inner crushing column 60. Figure 8 As shown, the fixed limiting disk 100 extends to the outside of the inner crushing column 60 at the end point corresponding to the minimum distance between the bottom edge of the inner crushing column 60 and the rotating shaft 61. The top surface of the part located outside the inner crushing column 60 is a fixed inclined surface 101 that gradually decreases from the inner side to the outer side. This allows the material to be ground on the top surface of the fixed limiting disk 100 to roll down along the fixed inclined surface 101 to the bottom of the fixed limiting disk 100, which helps to ensure that the material is completely ground and discharged smoothly. The upper grinding disk 80 is installed at the bottom of the fixed limiting disk 100, and the lower grinding disk 90 is fixed at the bottom of the outer crushing cylinder 70. The lower end of the rotating shaft 61 passes through the center of the fixed limiting disk 100, the upper grinding disk 80, and the lower grinding disk 90 in sequence. The center of the lower grinding disk 90 has a discharge port 91 with a diameter larger than that of the rotating shaft 61.

[0096] like Figure 8 As shown, the top surface of the lower grinding disc 90 gradually slopes downwards from its periphery to its center, and the bottom surface of the upper grinding disc 80 gradually slopes downwards from its periphery to its center. Furthermore, the generatrix slope of the bottom surface of the upper grinding disc 80 is greater than the generatrix slope of the top surface of the lower grinding disc 90. A material grinding channel 110, gradually narrowing from the outside to the inside, is formed between the upper grinding disc 80 and the lower grinding disc 90. Figure 9 As shown, the top surface of the lower grinding disc 90 is uniformly fixed with arc-shaped ribs 92 connecting the edge of the discharge port 91 to the connection between the lower grinding disc 90 and the inner side of the outer crushing cylinder 70. The rotation direction of each arc-shaped rib 92 is the same. The bottom surface of the upper grinding disc 80 is uniformly fixed with arc-shaped ribs 81 connecting the middle part to the periphery of the upper grinding disc 80. The rotation direction of each arc-shaped rib 81 is the same and opposite to the rotation direction of the arc-shaped rib 92.

[0097] like Figure 7As shown, the outer casing 50 has an annular groove 51 at its inner top for the top of the outer crushing cylinder 70 to be inserted into. A feed pipe 111, located within the annular groove 51, is connected to the top surface of the outer casing 50. The feed pipe 111 is a bent pipe, and a hopper 112 is fixedly connected to its upper end. A conical collecting hopper 113, located directly below the lower grinding disc 90, is fixed to the bottom of the outer casing 50. The diameter of the collecting hopper 113 gradually decreases from top to bottom, and a discharge pipe 114 is connected to the bottom of the collecting hopper 113. A switching valve 115 is installed on the discharge pipe 114. An annular support groove 93 is provided at the lower part of the lower grinding disc 90. A support sealing plate 116, fixed to the periphery of the top surface of the collecting hopper 113, is provided within the support groove 93. The lower grinding disc 90... A drive gear 117 is provided on one side of the lower grinding disc 90. The circumference of the lower grinding disc 90 is provided with gear teeth that mesh with the drive gear 117. A rotating shaft 118 is coaxially fixed at the center of the drive gear 117. The lower end of the rotating shaft 118 is connected to the inner bottom of the outer housing 50 through a common bearing 53. The upper end of the rotating shaft 118 passes through the top panel of the outer housing 50 and is connected to the drive motor 119. A common bearing 53 is provided on the outer housing 50 at the position through which the rotating shaft 118 passes. The upper ends of the rotating shaft 118 and the rotating shaft 111 are both fixedly fitted with pulleys 56 located above the top of the outer housing 50. A transmission belt 57 is wrapped around the two pulleys 56, realizing synchronous and unidirectional driving of the rotating shaft 111 and the rotating shaft 118.

[0098] like Figure 7 As shown, the upper end of the rotating shaft 61 passes through the upper end face of the outer casing 50, and a sealed bearing 52 is provided on the outer casing 50 at the position through which the rotating shaft 61 passes. The lower end of the rotating shaft 61 extends into the collecting hopper 113 and is connected to the collecting hopper 113 through a common bearing 54. At least three short support rods 55 connected to the outer side of the upper port of the discharge pipe 114 are fixed at equal intervals on the lower circumference of the common bearing 54. This can achieve the fixed connection of the common bearing 54 while avoiding obstruction of the powder entering the discharge pipe 114. A trumpet-shaped baffle 58 is fixedly sleeved on the lower part of the rotating shaft 61. The diameter of the baffle 58 gradually increases from top to bottom, and the bottom diameter of the baffle 58 is larger than the outer diameter of the common bearing 54. The bottom of the baffle 58 surrounds the outside of the common bearing 54. The baffle 58 can prevent the powder falling from the discharge port 91 from falling onto the common bearing 54, so that the powder rolls down along the outer side of the baffle 58.

[0099] like Figure 7As shown, a channel that gradually narrows from top to bottom is formed between the inner crushing column 60 and the outer crushing cylinder 70. The crushing teeth 62 and 71, under the counter-rotation of the inner crushing column 60 and the outer crushing cylinder 70, can crush the material in stages, resulting in a good crushing effect. The inner crushing column 60 is eccentrically positioned, allowing larger materials to enter at the larger gap between the inner crushing column 60 and the outer crushing cylinder 70. This design is particularly effective for materials with dimensions between the minimum and maximum gap between the inner crushing column 60 and the outer crushing cylinder 70. The intermittent feeding method can prevent the inner crushing column 60 and the outer crushing cylinder 70 from being overloaded. The distance between the fixed limiting disk 100 and the outer crushing cylinder 70 is constant. Only when the particle size of the raw material is crushed to be equal to or smaller than the distance between the periphery of the fixed limiting disk 100 and the inner wall of the outer crushing cylinder 70 can the crushed raw material fall onto the lower grinding disk 90. ​​The raw material that does not meet the standard will remain in the gap between the inner crushing column 60 and the outer crushing cylinder 70 and continue to be crushed, thereby ensuring that the material entering the grinding channel 110 has been crushed to the standard. The top surface of the lower grinding disc 90 gradually slopes downwards from its periphery to the center, causing the material entering the grinding channel 110 to move towards the center of the lower grinding disc 90. During this process, because the width of the grinding channel 110 gradually decreases along the direction of material movement, the material can be effectively squeezed and ground under the counter-rotation of the upper grinding disc 80 and the lower grinding disc 90. The opposing surfaces of the lower grinding disc 90 and the upper grinding disc 80 are respectively provided with arc-shaped ribs 92 and 81 with opposite rotation directions. Under the counter-rotation of the upper grinding disc 80 and the lower grinding disc 90, the arc-shaped ribs 92 and 81 on both sides of the material stuck in the grinding channel 110 can clamp and cut the material, effectively preventing it from getting stuck in the grinding channel 110 and promoting complete grinding. In summary, this device can achieve good crushing and grinding effects, ensure complete discharge, and has high uniformity and compliance with standards.

[0100] To adapt to materials with different particle size requirements, such as Figure 8 As shown, the bottom of the fixed limiting disk 100 is provided with a mounting groove 102 for mounting the upper grinding disk 80. The upper grinding disk 80 is slidably connected in the mounting groove 102. A ring-shaped sliding plate 82 is formed on the periphery of the upper grinding disk 80. A concave sliding groove 103 is provided on the periphery of the mounting groove 102 for the sliding plate 82 to slide up and down. Figure 10As shown, sliding blocks 83 are fixed at equal intervals on the annular side of the upper grinding disc 80 surrounding the outer side of the rotating shaft 61, and the rotating shaft 61 is provided with a concave sliding groove 104 that matches the sliding block 83. As the upper grinding disc 80 moves up and down, the sliding plate 82 moves up and down within the first sliding groove 103, and the sliding block 83 slides within the second sliding groove 104. This provides a good seal between the upper grinding disc 80 and the fixed limiting disc 100 without affecting the up and down movement of the upper grinding disc 80, ensuring complete material discharge. Furthermore, multiple sliding blocks 83 are equally spaced and fitted into the second sliding groove on the surface of the first rotating shaft 61, thus satisfying the requirement for the rotating shaft 61 to drive the upper grinding disc 80 to rotate. The upper end face of the upper grinding disc 80 is connected to the bottom surface of the fixed limiting disc 100 via evenly spaced second springs 105. The fixed limiting disc 100 contains an electromagnet 106, and the upper grinding disc 80 contains a permanent magnet 107, whose magnetism repels the electromagnet 106, at the position corresponding to the electromagnet 106. During operation, the repulsive force between the electromagnet 106 and the permanent magnet 107 is always greater than the sum of the elastic force of the second spring 105 and the resistance of the grinding material to the upper grinding disc 80. This configuration allows the upper grinding disc to slide longitudinally relative to the fixed limiting disc 100. When the electromagnet 106 is energized, it generates a magnetic repulsion force on the permanent magnet 107, which overcomes the elastic force of the spring 105 and pushes the upper grinding disc 80 to the lower grinding disc 90, thus effectively grinding the material in the grinding channel 110. By adjusting the energizing current of the electromagnet 106, the magnitude of the aforementioned magnetic repulsion force can be controlled, thereby adjusting the width of the grinding channel 110 to adapt to materials with different particle size requirements, thereby enhancing the application value of this device.

[0101] The specific working process of the above-mentioned crushing and grinding device is as follows:

[0102] The drive motor 119 is started, which directly drives the rotating shaft 118 to rotate. Through the belt drive structure composed of the transmission belt 57 and the pulley 56, the rotating shaft 61 is driven to rotate, so that the rotating shaft 61 and the rotating shaft 118 rotate in the same direction and synchronously. The drive gear 117 rotates in the same direction as the rotating shaft 118. Then, through the gear teeth of the lower grinding disc 50 that mesh with the drive gear 7, the lower grinding disc 90 is driven to rotate in the opposite direction to the rotating shaft 61. Thus, the inner crushing column 60 and the outer crushing cylinder 70 rotate in opposite directions, and the lower grinding disc 90 and the upper grinding disc 80 rotate in opposite directions. A suitable current is passed through the electromagnet 106, so that the electromagnet 106 generates a suitable magnetic repulsion force on the permanent magnet 107, so that the distance between the middle of the upper grinding disc 80 and the middle of the lower grinding disc 90 is equal to the target particle size of the raw material.

[0103] Purified tourmaline, alunite, sepiolite, attapulgite, or coconut shell activated carbon raw materials are fed into hopper 112. The raw materials fall from feed pipe 111 into outer crushing cylinder 70 directly below feed pipe 111. When the inner crushing column 60 rotates to the end point corresponding to the shortest distance between its edge and the rotating shaft 61, it is directly below feed pipe 111. The gap between the inner crushing column 60 and outer crushing cylinder 70 on that side is larger, allowing more and larger raw materials to enter the gap between the inner crushing column 60 and outer crushing cylinder 70. For materials with sizes between the minimum and maximum gap between the inner crushing column 60 and outer crushing cylinder 70, intermittent feeding can be achieved, thus avoiding excessive workload on the inner crushing column 60 and outer crushing cylinder 70. With the outer crushing cylinder 70 rotating in opposite directions, the crushing teeth 62 and 71 can effectively crush the raw materials. Moreover, the gap between the inner crushing column 20 and the outer crushing cylinder 30 gradually narrows from top to bottom, achieving the effect of gradually crushing the raw materials during their fall, resulting in a better crushing effect. When the particle size of the raw materials is crushed to be equal to or smaller than the distance between the circumference of the fixed limiting disk 100 and the inner wall of the outer crushing cylinder 70, the crushed raw materials can fall onto the lower grinding disk 90. ​​Raw materials that do not meet the standard will remain in the gap between the inner crushing column 60 and the outer crushing cylinder 70 and continue to be crushed.

[0104] Because the top surface of the lower grinding disc 90 gradually slopes downwards from its periphery to its center, the material entering the grinding channel 110 will move towards the center of the lower grinding disc 90. During this process, because the width of the grinding channel 110 gradually decreases along the direction of material movement, the material can be effectively squeezed and ground under the opposing rotation of the upper grinding disc 80 and the lower grinding disc 90. If any material gets stuck in the grinding channel 110... Inside, because the lower grinding disc 90 and the upper grinding disc 80 are respectively provided with arc-shaped ribs 92 and 81 with opposite rotation directions on their facing surfaces, under the reverse rotation of the upper grinding disc 80 and the lower grinding disc 90, the arc-shaped ribs 92 and 81 on both sides of the stuck material can squeeze and cut the material, thereby effectively preventing the material from getting stuck in the grinding channel 110, and thus promoting the complete grinding of the material. The powder obtained after grinding falls from the discharge port 91 in the middle of the lower grinding disc 90, falls on the baffle 58 and then falls along the baffle 58, and then falls into the collection hopper 113 from the outside of the ordinary bearing 54. Then it moves along the inner side of the collection hopper 113 towards the discharge pipe 114. The powder passes through the gap between the support short rods 55 and then enters the discharge pipe 114. After opening the switch valve 115, the powder obtained from grinding can be collected.

[0105] During the crushing and grinding process, the feed pipe 111 is a bent pipe, which can prevent the dust generated by the material during the crushing and grinding process from escaping. The top of the outer crushing cylinder 70 is inserted into the annular rotating groove 51 at the top of the outer box 50, and the top surface of the collecting hopper 113 is fixed with a supporting sealing plate 116 inserted into the supporting rotating groove 93 at the bottom of the lower grinding disc 90. The top of the rotating shaft 61 is provided with a sealing bearing 52 at the position where it passes through the outer box 50. This ensures that the dust only remains in the outer crushing cylinder 70, the supporting sealing plate 116 and the collecting hopper 113, and will not move to other spaces inside the outer box 50. This facilitates the unified treatment of dust and is also beneficial for maintaining other spaces inside the outer box 50.

[0106] Therefore, it can be seen that this crushing and grinding device can achieve good crushing and grinding effect, ensure complete discharge, and have high uniformity and compliance of discharge, and is also easy to handle the generated dust.

[0107] Example 2 An air purification composition containing diatomaceous earth pure negative ion particles, comprising a first component and a second component. The raw material components of the first component include diatomaceous earth pure negative ion particles, which comprise the following raw material components in parts by weight: 35 parts diatomaceous earth, 20 parts tourmaline, and 9 parts nano-photocatalyst. The second component comprises the following raw material components in parts by weight: 6 parts photocatalyst, 8 parts CLO purification factor, 25 parts sepiolite, 35 parts attapulgite, and 25 parts diatomaceous earth. The mass ratio of the first component to the second component is 3:1.

[0108] The preparation method of the above-mentioned air purification composition containing diatomaceous earth pure negative ion particles is the same as that in Example 1.

[0109] In step three above, a small particulate bagging device is used, the structure and operation of which are the same as in Example 1.

[0110] In steps A2 and B2 above, a crushing and grinding device is used during grinding, and its structure and operation process are the same as in Example 1.

[0111] Example 3 An air purification composition containing diatomaceous earth pure negative ion particles, comprising a first component and a second component. The raw material components of the first component include diatomaceous earth pure negative ion particles, which comprise the following raw material components in parts by weight: 45 parts diatomaceous earth, 15 parts tourmaline, and 6 parts nano-photocatalyst. The second component comprises the following raw material components in parts by weight: 9 parts photocatalyst, 5 parts CLO purification factor, 20 parts sepiolite, 45 parts attapulgite, and 20 parts diatomaceous earth. The mass ratio of the first component to the second component is 4:1.

[0112] The preparation method of the above-mentioned air purification composition containing diatomaceous earth pure negative ion particles is the same as that in Example 1.

[0113] In step three above, a small particulate bagging device is used, the structure and operation of which are the same as in Example 1.

[0114] In steps A2 and B2 above, a crushing and grinding device is used during grinding, and its structure and operation process are the same as in Example 1.

[0115] As can be seen from the above, this invention...

[0116] Those skilled in the art should recognize that the above embodiments are merely illustrative of the present invention and are not intended to limit the present invention. Any variations or modifications to the above embodiments that are within the spirit and essence of the present invention will fall within the scope of the claims of the present invention.

Claims

1. A small particulate matter bagging device, wherein the small particulate matter bagging device is used in the preparation method of an air purification composition containing diatomaceous earth pure negative ion particles; the air purification composition comprises a first component and a second component, characterized in that, The first component comprises diatomaceous earth pure negative ion particles, which include the following raw material components in parts by weight: 35-45 parts diatomaceous earth, 15-20 parts tourmaline, and 6-9 parts nano-photocatalyst; the second component comprises the following raw material components in parts by weight: 6-9 parts photocatalyst, 5-8 parts CLO purification factor, 20-25 parts sepiolite, 35-45 parts attapulgite, and 20-25 parts diatomaceous earth; the mass ratio of the first component to the second component is 3-4:

1. The preparation method of the above air purification composition is as follows: Step 1, the preparation of the first component, includes the following steps: A1: Select diatomaceous earth materials with adsorption capacity and tourmaline materials with thermoelectric effect; A2: The diatomaceous earth material and tourmaline material mentioned in step S1 are purified and then polished separately. The diatomaceous earth is then passed through a 325-mesh sieve, and then modified and activated to expand the pores for later use. The tourmaline is passed through a 400-mesh sieve for later use. A3: Weigh the nano-photocatalyst, the activated and expanded diatomaceous earth from step S2, and the sieved tourmaline according to the mass fractions, mix them evenly, and then place them in a high-strength granulator for granulation to obtain mixed particles. A4: The mixed particles obtained in step S3 are dried and then activated and calcined to obtain the first component; Step two, the preparation of the second component, includes the following steps: B1: Select natural mineral materials with adsorption capacity such as sepiolite, attapulgite, and diatomaceous earth, as well as photocatalysts and CLO purification factor materials with decomposition capacity. B2: The natural mineral materials of sepiolite, attapulgite and diatomite mentioned in step S1 are purified and then ground separately, and then passed through a 325-mesh sieve. B3: Modify the sepiolite, attapulgite and diatomite treated in step S2, then activate and expand the pores for later use; B4: Weigh the photocatalyst and CLO purification factor from step S1, as well as the sepiolite, attapulgite and diatomaceous earth treated in step S3, according to the mass fractions, then mix them together. After mixing evenly, place them in a high-strength granulator for granulation to obtain mixed granules. B5: The mixed particles obtained in step S4 are dried and then activated and calcined to obtain the second component; Step 3: Weigh the first component and the second component according to the mass ratio, mix them evenly, and then wrap them with a coating material to obtain the air purification composition containing diatomaceous earth pure negative ion particles. The small particle bagging device described above was used in step three, and its structure is as follows: The small particulate bagging device includes at least three cylinders (10) arranged in a ring and a material storage box (20) located directly above one of the cylinders (10). A limiting ring cylinder (30) is provided on the outer side of all the cylinders (10) to jointly surround the three cylinders (10) with an external connecting support. The upper end face of the limiting ring cylinder (30) is open, and the lower end face is closed. A limiting disc (40) is provided on the inner side of the three cylinders (10) at the center of the limiting ring cylinder (30). A motor shaft is fixedly connected to the bottom of the limiting disc (40). The motor shaft passes through the bottom surface of the limiting ring cylinder (30) and is connected to a rotating motor. 1) At least two longitudinally arranged sliding grooves (11) are evenly spaced on the outer surface of the cylinder (10). A sliding member (12) is slidably connected in the sliding groove (11). A clamp (13) for holding the package is connected to the sliding member (12). A bottom plate (14) is provided directly below the cylinder (10) and placed at the bottom of the limiting ring cylinder (30). The bottom plate (14) is connected to the bottom surface of the cylinder (10) by a spring (15). A telescopic sleeve (16) is provided on the spring (15). The two ends of the telescopic sleeve (16) are fixed to the bottom surface of the cylinder (10) and the top surface of the bottom plate (14) respectively. A passive pusher (17) is fixed to the inner side of the corresponding limiting ring (30) at the lower end of the cylinder (10). The end of the passive pusher (17) facing away from the cylinder (10) just contacts the side of the limiting disc (40). The periphery of the limiting disc (40) is provided with active pushers (41) that correspond one-to-one with the cylinder (10). The length of the active pusher (41) is not greater than the length of the passive pusher (17). When there is no material in the cylinder (10), the bottom surface of the passive pusher (17) is higher than the active pusher (41). The top surface of the push block (41); the cylinder (10) is fixed with an extension plate (18) on the opposite side of the passive push block (17). The inner ring surface of the limiting ring cylinder (30) is provided with a guide groove (31) for the extension plate (18) to rotate. A protruding limiting strip (32) is fixed in the guide groove (31) between each two adjacent extension plates (18) of the cylinder (10). The distance between two adjacent limiting strips (32) is just enough to accommodate one extension plate (18). The bottom of the limiting strip (32) is lower than the bottom of the extension plate (18). The material storage box (20) is provided with a vertically arranged feeding pipe (21) at the bottom. The feeding pipe (21) is provided with a valve (22). The lower part of the feeding pipe (21) is slidably connected to a sealing cover (23) that can slide up and down along the feeding pipe (21). The inner side of the sealing cover (23) is attached to the feeding pipe (21). The bottom periphery of the sealing cover (23) is located on the outer side of the cylinder (10) directly below the material storage box (20). When the spring (15) is in the initial state, the upper end face of the cylinder (10) is higher than the lower end face of the feeding pipe (21). When the spring (15) is in the compressed state, the upper end face of the cylinder (10) is lower than the lower end face of the feeding pipe (21).

2. The small particulate matter bagging device according to claim 1, characterized in that, The package is made of non-woven fabric.

3. The small particulate matter bagging device according to claim 1, characterized in that, The sliding part (12) of the small particle bagging device used in its preparation method is a roller whose width is adapted to the width of the chute (11). A limiting shaft (2) is inserted through the center of the roller. The limiting shaft (2) is vertically connected to a sliding shaft (3). A sliding groove (6) for the sliding shaft (2) to slide up and down is opened on the side wall of the chute (11) along its length direction. The clamp (13) is fixedly connected to the outer end of the limiting shaft (2).

4. The small particulate matter bagging device according to claim 1, characterized in that, The telescopic sleeve (16) of the small particle bagging device used in its preparation method includes an outer sleeve (161) fixed on the bottom surface of the cylinder (10) and an inner sleeve (162) fixed on the bottom plate (14). The inner surface of the outer sleeve (161) is always in contact with the outer surface of the inner sleeve (162).

5. A small particulate matter bagging device according to claim 1, characterized in that, In the preparation method, the bottom surface of the sealing cover (23) of the small particle bagging device is provided with ball bearings (24) at equal intervals around the upper port of the cylinder (10).

6. The small particulate matter bagging device according to claim 1, characterized in that, The feeding pipe (21) of the small particle bagging device used in its preparation method has an annular groove (25) at the bottom along its periphery. The inner side of the sealing cover (23) is fixed with an annular slider (26) located in the annular groove (25). The height of the annular groove (25) is not less than the sum of the height difference between the cylinder (10) and the height of the annular slider (26).

7. A small particulate matter bagging device according to claim 1, characterized in that, The material storage box (20) of the small particle bagging device used in its preparation method is provided with a feeding pipe (27) at the top. The upper part of the material storage box (20) is provided with a filter plate (28) attached to the inner wall of the material storage box (20) around its periphery. The filter plate (28) is inclined. The material storage box (20) side wall corresponding to the low side end of the filter plate (28) is provided with an opening (29) connected to the low side end of the filter plate (28). A recycling box (4) is fixed on the material storage box (20) outside the opening (29). The recycling box (4) is provided with a large particle receiving trough (5) located below the opening (29).

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