Novel mineral-based ozone catalyst filler preparation device and method

Abstract

The invention discloses a novel mineral-based ozone catalyst filler preparation device and method, the preparation device is advanced and low in energy consumption, and the novel mineral-based ozone catalyst filler prepared by the preparation device has an internal unique three-dimensional microporous structure, a huge specific surface area and excellent ion exchange performance. The main performances of the filler comprise: (1) the specific surface area is high, and a large number of adsorption sites are provided; (2) the ion exchange capacity is excellent, and various unfavorable ions in water can be adsorbed and treated; (3) the mechanical strength is high, and the problem of component loss is well solved; (4) the chemical stability is good, good performance can still be kept in an extreme environment, and secondary pollution is avoided; and (5) the internal static electricity is strong, the self-decomposition of ozone in wastewater can be accelerated, and the concentration of (. OH) generated in water is increased, so that the catalytic ozonation effect is improved, and compared with the current catalyst filler in the market, the catalytic ozonation effect can be improved by 2-3 times.

Description

Technical Field

[0001] This invention relates to the field of wastewater treatment technology, specifically to a novel apparatus and method for preparing mineral-based ozone catalyst packing. Background Technology

[0002] In recent years, advanced oxidation technologies relying on strong oxidizing free radicals have emerged and flourished, providing an effective solution for the deep treatment of recalcitrant organic wastewater. Ozone oxidation technology has a short treatment cycle and no secondary pollution. With the help of free radicals generated by catalysis, it can efficiently and deeply mineralize organic pollutants, ultimately decomposing them into harmless substances such as small molecule acids, carbon dioxide, and water.

[0003] Advanced ozone oxidation technology plays an important role in water treatment. It decomposes organic pollutants in water by generating highly oxidizing hydroxyl radicals. However, the oxidation capacity of ozone alone is limited because ozone's direct reaction rate is slow and its solubility and stability in water are not high. Therefore, it is very important to introduce heterogeneous ozone catalyst fillers. Catalyst fillers can improve the decomposition efficiency of ozone, thereby enhancing the oxidation process.

[0004] Currently, heterogeneous catalytic ozone oxidation technology generally uses metal oxide catalyst packings, carbon-based non-metallic catalyst packings, and metal composite catalyst packings. However, these catalyst packings have drawbacks during use, such as limited specific surface area, acid and alkali resistance, general adsorption performance, weak catalytic activity, and difficulty in regeneration and recycling. Summary of the Invention

[0005] The purpose of this invention is to provide a novel mineral-based ozone catalyst packing preparation apparatus and method. The novel mineral-based ozone catalyst packing prepared by this apparatus has the characteristics of stable properties, low price, and high catalytic efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a novel mineral-based ozone catalyst filler preparation device, comprising a novel mineral-based material addition tank, a novel adhesive material addition tank, a pore-forming agent material addition tank, a stabilizer material addition tank, a batching device, a high-power horizontal mixing reaction tank, a granulator, a preheating auxiliary kiln, a firing kiln, a cooler, a washing tank, a dryer, a screening machine, a quality inspection platform, a bagging and metering hopper, and a bagged finished product and conveying platform. The novel mineral-based material addition tank is circular with a hopper bottom, made of corrosion-resistant carbon steel. An inlet for the novel mineral-based material addition tank is located at the top of the tank, and a metering device and a metering device outlet are located at the bottom of the tank. The batching device is a circular tubular container made of corrosion-resistant carbon steel, with a metering device and a metering device outlet centrally located at the bottom of the batching device. The high-power horizontal mixing reaction tank is circular and made of corrosion-resistant carbon steel. The tank is welded with end caps at both ends. An inlet is located on one side of the top of the tank. A powerful agitator, a twin-shaft paddle agitator, is installed inside the tank. A powerful horizontal mixing reaction tank outlet and a connected spiral conveyor pipe are located next to the end cap on one side of the bottom of the tank. The granulator is a disc-type granulator, composed of a large disc, gears, a transmission device, a frame, a base, and a scraper frame. A granulator inlet is located at one end of the granulator, and a granulator outlet and a connected spiral elevator are located at the other end. The preheating auxiliary kiln has a thickness of 16mm, an inclination of 3.5%, a rotation speed of 0.3–3.1 r / min, and a motor power of 15 kW. A preheating auxiliary kiln inlet is located at the front end of the preheating auxiliary kiln, and a preheating auxiliary kiln outlet and a connected heat-resistant conveyor are located at the rear end. A burner is located next to the preheating auxiliary kiln. The firing kiln has a thickness of 18mm and an inclination of 3.The kiln operates at 5% speed (4-5 r / min) and has a motor power of 18 kW. A kiln inlet is located at the front end of the kiln, and a kiln outlet and a connected high-temperature conveyor are located at the rear end. Scrapers are installed along the inner wall of the kiln. A high-temperature burner is located beside the kiln. The cooler is 10 mm thick and is a grate cooler. A cooler inlet is located at the top, and a cooler outlet and a connected sealed conveyor belt are located at the bottom. A cooling fan is located beside the cooler. The washing tank is a vertical cylindrical structure, mainly composed of a shell and a bottom end cap, made of corrosion-resistant carbon steel. A washer inlet is located on one side of the top of the washing tank. An internal agitator, a vertical double-spiral agitator, is installed inside the washing tank with a speed of 40-100 r / min. The system is a 2kW variable frequency drive, featuring a washing liquid inlet on the upper side of the washing tank, a washing tank outlet and a connected screw propeller on the bottom side, a horizontal circular drum dryer with a thickness of 12mm, a dryer inlet on the top side, lifting plates along the inner wall of the dryer, a dryer outlet and a connected screw conveyor on the bottom side, a heat source unit beside the dryer, a circular vibrating sieve with a screen size of 2-4mm, a quality inspection platform including analytical instruments, meters, reagents, and a testing workbench, a symmetrical bagging hopper made of corrosion-resistant carbon steel, and an output platform for bagged finished products including a bagging belt conveyor, robotic palletizing, and automatic palletizing processes.

[0007] A novel mineral-based ozone catalyst filler preparation method comprises: 100-mesh hydrochloric acid-modified clinoptilolite powder is placed into a novel mineral-based material addition tank through the inlet of a novel mineral-based material addition tank; 100-mesh maifanite powder is placed into a novel adhesive material addition tank through the inlet of a novel adhesive material addition tank; 100-mesh onion skin powder, after being acid-impregnated, decolorized, washed, dried, pulverized, and ground, is placed into a pore-forming agent material addition tank through the inlet of a pore-forming agent material addition tank; and 80-100-mesh polycarboxylate powder is placed into a stabilizer material addition tank through the inlet of a stabilizer material addition tank.

[0008] As a preferred embodiment, the mass percentages of the aforementioned functional materials are as follows: 65% of the novel mineral-based material is clinoptilolite powder modified with hydrochloric acid; 20% of the novel adhesive material is maifanite powder; 10% of the pore-forming agent is onion skin powder after acid soaking, decolorization, washing, drying, pulverizing, and grinding; and 5% of the stabilizer is polycarboxylate powder. The metering devices and outlets of the novel mineral-based material, novel adhesive material, pore-forming agent, and stabilizer are then opened respectively. The functional materials, weighed and measured according to the aforementioned mass percentages, are then fed into the mixing unit.

[0009] As a preferred embodiment, after the various functional materials entering the batching device are collected, they are placed into a high-intensity horizontal mixing reactor through the batching device metering device and metering device outlet. The water inlet is opened and distilled water is added to keep the moisture content of the mixture in the high-intensity horizontal mixing reactor at about 45%. The high-intensity stirrer is started and the speed is controlled at 200-2500 / min to fully mix the wet mixture. The stirring and mixing reaction time is 20-25 minutes, and then the temperature is controlled at 60℃ for 1 hour for maturation.

[0010] As a preferred embodiment, the wet mixture, after being stirred and mixed in a high-intensity horizontal mixing reactor and matured, is conveyed from the outlet of the high-intensity horizontal mixing reactor and the spiral conveyor pipe connected to it to the granulator inlet. Under the action of gravity and centrifugal force generated by the rotation of the inclined disc, the mixture rolls downward to the edge of the disc and continuously adheres to the mixture, causing the particles to increase in size. At the same time, under the action of friction at the bottom of the disc, the granules roll upward with the disc. When they reach the scraper plate, the un-spherical particles pass through the gap between the scraper plate and the bottom disc, while most of the particles flow down to the edge of the disc along the scraper plate. During continuous rolling, the mixture adheres to the disc again. This cycle is repeated many times, and the particles gradually increase in size until they reach a particle size of 2-4 mm before overflowing from the edge of the disc.

[0011] As a preferred embodiment, the granulated material, after being granulated to 2-4 mm, enters the preheating auxiliary kiln through the outlet of the granulator and the screw conveyor connected thereto via the inlet of the preheating auxiliary kiln. The burner is turned on to provide heat medium into the preheating auxiliary kiln. The preheating auxiliary kiln rotates at a speed of 1-2 r / min, and the temperature is controlled at 120-160℃. The preheating time is 1.5-2 h.

[0012] As a preferred embodiment, the granules treated in the preheating auxiliary kiln enter the firing kiln through the outlet of the preheating auxiliary kiln and the heat-resistant conveyor connected thereto via the inlet of the firing kiln. The filling rate inside the firing kiln is 10-15%. A high-temperature burner is turned on to provide high-temperature heat medium into the firing kiln. The firing kiln rotates at a speed of 4-5 r / min, and the temperature is controlled at 900-1100℃ for a firing time of 12-16 hours. The granules fired in the firing kiln then enter the cooler through the outlet of the firing kiln and the heat-resistant conveyor connected thereto via the inlet of the cooler. The cooler is a grate cooler. A cold air fan is turned on to provide coolant into the cooler to cool the fired granules to below 60℃.

[0013] As a preferred embodiment, the granules cooled by the cooler enter the washing tank through the cooler outlet and a connected sealed conveyor belt via the washing tank inlet. The washing liquid inlet is opened to introduce washing liquid, which is acidic distilled water with a pH value controlled at 4-5. The agitator inside the washing tank is turned on and the rotation speed is controlled at 60-80 r / min, so that the granules are dispersed and turned in the washing liquid, washing away impurities and scale on the surface of the granules caused by high temperature or chemical reaction. The washing residence time is 30 min. The granules washed in the washing tank then enter the dryer through the washing tank outlet and a connected spiral propulsion pipe via the dryer inlet. The dryer is a drum dryer or a rotary dryer. The heat source is turned on to provide heat medium into the dryer and the temperature is controlled at 120-150℃. The dryer repeatedly lifts the granules through the internal lifting plates of the inclined rotating drum, allowing them to come into direct contact with hot air, achieving efficient heat and mass transfer. The drying residence time is 1-2 min.

[0014] As a preferred embodiment, the granules dried by the dryer enter the screening machine through the dryer outlet and the screw conveyor connected to it, and the screening machine inlet. The screening machine is a circular rotary screening machine. After the granules pass through a 2-4mm screen, they become a finished new mineral-based ozone catalyst filler with a specification of 2-4mm.

[0015] As a preferred embodiment, the finished novel mineral-based ozone catalyst filler with a specification of 2-4mm after being screened by the screening machine enters the quality inspection platform via the outlet of the screening machine and the U-shaped belt conveyor connected to it, and is tested for various physicochemical indicators. After passing the quality inspection platform test, the product is weighed by the bagging and weighing hopper and then enters the bagged finished product and output platform for bagging, belt conveyor, robot palletizing, automatic palletizing and other processes before being temporarily stored in the warehouse.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention utilizes an advanced and energy-efficient preparation device. The novel mineral-based ozone catalyst packing material prepared by this device possesses a unique three-dimensional microporous structure, a large specific surface area, and excellent ion exchange performance, making it a preferred packing material in the field of ozone catalytic oxidation. Its main properties include: ① High specific surface area, providing numerous adsorption sites; ② Excellent ion exchange capacity, capable of adsorbing and treating various undesirable ions in water; ③ High mechanical strength, effectively solving the problem of component loss; ④ Good chemical stability, maintaining good performance even under extreme environments without secondary pollution; ⑤ Strong internal electrostatic charge, accelerating the self-decomposition of ozone in wastewater and increasing the concentration of (·OH) generated in the water, thereby improving the ozone catalytic oxidation effect. Compared with currently available catalyst packing materials, the ozone catalytic oxidation effect can be improved by 2 to 3 times. Attached Figure Description

[0017] Figure 1 This is a process flow and system diagram of the present invention.

[0018] In the diagram: 1. New mineral-based material dosing tank; 1-1. Inlet of the new mineral-based material dosing tank; 1-2. Meter and outlet of the new mineral-based material dosing tank; 2. New adhesive material dosing tank; 2-1. Inlet of the new adhesive material dosing tank; 2-2. Meter and outlet of the new adhesive material dosing tank; 3. Pore-forming agent material dosing tank; 3-1. Inlet of the pore-forming agent material dosing tank; 3-2. Meter and outlet of the pore-forming agent material dosing tank; 4. Stabilizer material dosing tank; 4 -1. Stabilizer material addition tank inlet; 4-2. Stabilizer material addition tank metering device and metering device outlet; 5. Batching device; 5-1. Batching device metering device and metering device outlet; 6. High-power horizontal mixing reactor; 6-1. Water inlet; 6-2. High-power agitator; 6-3. High-power horizontal mixing reactor outlet; 6-4. Spiral conveyor pipe; 7. Granulator; 7-1. Granulator inlet; 7-2. Granulator outlet; 7-3. Spiral elevator; 8. Preheating auxiliary kiln; 8-1. Preheating auxiliary kiln inlet; 8-2. Preheating auxiliary kiln outlet; 8-3. Heat-resistant conveyor; 8-4. Burner; 9. Firing kiln; 9-1. Firing kiln inlet; 9-2. Firing kiln outlet; 9-3. High-temperature conveyor; 9-4. Scraper; 9-5. High-temperature burner; 10. Cooler; 10-1. Cooler inlet; 10-2. Cooler outlet; 10-3. Enclosed conveyor belt; 10-4. Air cooler; 11. Washing tank; 11-1. Washing tank inlet; 11-2. Agitator inside the washing tank; 11-3. 11-4 Washing tank outlet; 11-5 Spiral propulsion pipe; 12 Dryer; 12-1 Dryer inlet; 12-2 Lifting plate; 12-3 Dryer outlet; 12-4 Spiral discharge machine; 12-5 Heat source machine; 13 Screening machine; 13-1 Screening machine inlet; 13-2 Screening machine outlet; 13-3 U-shaped belt conveyor; 14 Quality inspection platform; 14-1 Quality inspection platform head end; 15 Bagging and weighing hopper; 16 Bagged finished product and conveying platform. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments. Example

[0021] Please see Figure 1As shown, this invention provides a novel mineral-based ozone catalyst filler preparation device, comprising a novel mineral-based material addition tank 1, a novel adhesive material addition tank 2, a pore-forming agent material addition tank 3, a stabilizer material addition tank 4, a batching device 5, a high-intensity horizontal mixing reaction tank 6, a granulator 7, a preheating auxiliary kiln 8, a firing kiln 9, a cooler 10, a washing tank 11, a dryer 12, a screening machine 13, a quality inspection platform 14, a bagging and weighing hopper 15, and a bagged finished product and conveying platform 16. The mineral-based material dosing tank 1 is round with a hopper bottom, made of corrosion-resistant carbon steel. It has a new type of mineral-based material dosing tank inlet 1-1 at the top and a new type of mineral-based material dosing tank metering device and metering device outlet 1-2 at the bottom. The batching device 5 is a round tubular container made of corrosion-resistant carbon steel. It has a batching device metering device and metering device outlet 5-1 centrally located at the bottom. The high-power horizontal mixing reaction tank 6 is round, made of corrosion-resistant carbon steel, and welded with end caps at both ends. A water inlet 6-1 is provided on one side of the top of the tank. A powerful agitator 6-2, a twin-shaft paddle agitator, is installed inside the tank. A powerful horizontal mixing reaction tank outlet 6-3 and a spiral conveying pipe 6-4 connected to it are provided next to the end cap on one side of the bottom of the tank. The granulator 7 is a disc granulator, composed of a large disc, gears, a transmission device, a frame, a base, a scraper holder, etc. A granulator inlet 7-1 is provided at one end of the granulator 7, and a screw conveyor 6-4 is provided at the other end of the granulator 7. The pellet mill outlet 7-2 and the screw conveyor 7-3 connected to it are located at the pellet mill outlet 7-2. The preheating auxiliary kiln 8 has a thickness of 16mm, an inclination of 3.5%, a rotation speed of 0.3~3.1r / min, and a motor power of 15kw. The preheating auxiliary kiln inlet 8-1 is set at the front end of the preheating auxiliary kiln 8, and the preheating auxiliary kiln outlet 8-2 and the heat-resistant conveyor 8-3 connected to it are set at the tail end of the preheating auxiliary kiln 8. The burner 8-4 is set next to the preheating auxiliary kiln. The firing kiln 9 has a thickness of 18mm and an inclination of 3.The kiln has a rotation speed of 4-5 r / min and a motor power of 18 kW. A kiln inlet 9-1 is located at the front end of the kiln 9, and a kiln outlet 9-2 and a high-temperature conveyor 9-3 connected to it are located at the rear end of the kiln 9. Scrapers 9-4 are installed along the inner wall of the kiln 9. A high-temperature burner 9-5 is located beside the kiln 9. The cooler 10 has a thickness of 10 mm and is a grate cooler. A cooler inlet 10-1 is located at the top of the cooler 10. The cooler 10 has a cooler outlet 10-2 at its bottom and a sealed conveyor belt 10-3 connected to it. A cooling fan 10-4 is installed next to the cooler 10. The washing tank 11 is a vertical cylindrical structure, mainly composed of a shell and a bottom end cap, made of corrosion-resistant carbon steel. A washer inlet 11-1 is installed on one side of the top of the washing tank 11. An internal agitator 11-2 is installed inside the washing tank 11. The internal agitator 11-2 is a vertical double-spiral agitator with a rotation speed of 40~ 100r / min, variable frequency, power 2kw. A washing liquid inlet 11-3 is located on the upper side of the washing tank 11. A washing tank outlet 11-4 and a connected screw propeller 11-5 are located on the bottom side of the washing tank 11. The dryer 12 is a horizontal circular drum dryer with a thickness of 12mm. A dryer inlet 12-1 is located on the top side of the dryer 12. Lifting plates 12-2 are installed along the inner wall of the dryer 12. A drying... The machine outlet 12-3 and the connected screw conveyor 12-4 are included. A heat source 12-5 is located next to the dryer 12. The screening machine 13 is a circular vibrating screen with a screen size of 2-4mm. The quality inspection platform 14 includes analytical instruments, meters, reagents, and a testing workbench at its head 14-1. The bagging and measuring hopper 15 is a symmetrical funnel made of corrosion-resistant carbon steel. The bagged finished product output platform 16 includes a bagging belt conveyor, robotic palletizing, and automatic palletizing processes.

[0022] A novel method for preparing mineral-based ozone catalyst fillers involves placing 100-mesh hydrochloric acid-modified clinoptilolite powder into a novel mineral-based material feeding tank 1 through inlet 1-1; placing 100-mesh maifanite powder into a novel adhesive material feeding tank 2 through inlet 2-1; placing 100-mesh onion skin powder, after being acid-impregnated, decolorized, washed, dried, pulverized, and ground, into a pore-forming agent material feeding tank 3 through inlet 3-1; and placing 80-100-mesh polycarboxylate powder into a stabilizer material feeding tank 4 through inlet 4-1.

[0023] The mass percentages of the above-mentioned functional materials are as follows: the new mineral-based material is 65% clinoptilolite powder modified with hydrochloric acid; the new adhesive material is 20% maifanite powder; the pore-forming agent is 10% onion skin powder after being soaked in acid, decolorized, washed, dried, crushed, and ground; and the stabilizer is polycarboxylate powder, accounting for 5%. Then, open the metering device and metering device outlet 1-2 of the new mineral-based material addition tank, the metering device and metering device outlet 2-2 of the new adhesive material addition tank, the metering device and metering device outlet 3-2 of the pore-forming agent addition tank, and the metering device and metering device outlet 4-2 of the stabilizer material addition tank. After weighing and measuring each functional material according to the above mass percentages, it enters the batching device 5.

[0024] After the various functional materials entering the batching unit 5 are collected, they are placed into the high-power horizontal mixing reactor 6 through the batching unit metering device and metering device outlet 5-1. The water inlet 6-1 is opened and distilled water is added to keep the moisture content of the mixture in the high-power horizontal mixing reactor 6 at about 45%. The high-power agitator 6-2 is started and the speed is controlled at 200-2500 / min to fully mix the wet mixture. The mixing reaction time is 20-25 minutes, and then the temperature is controlled at 60℃ for 1 hour for maturation.

[0025] After being stirred and mixed in the powerful horizontal mixing reactor 6, the matured wet mixture is conveyed from the outlet 6-3 of the powerful horizontal mixing reactor and the spiral conveyor pipe 6-4 connected to it to the granulator inlet 7-1 into the granulator 7. Under the action of gravity and centrifugal force generated by the rotation of the inclined disc, it rolls down to the edge of the disc and continuously adheres to the mixture, making the particles larger. At the same time, under the action of friction at the bottom of the disc, the particles roll upward with the disc. When they reach the scraper plate, the un-spherical particles pass through the gap between the scraper plate and the bottom of the disc, while most of the particles flow down to the edge of the disc along the scraper plate. In the continuous rolling, they adhere to the mixture again. After repeated cycles, the particles grow from small to large. After the particle size is controlled to reach 2-4 mm, they overflow from the edge of the disc.

[0026] The granulated material, after being granulated to 2-4mm, enters the preheating auxiliary kiln 8 through the preheating auxiliary kiln inlet 8-1 via the granulator outlet 7-2 and the connected screw conveyor 7-3. The burner 8-4 is turned on to supply heat medium to the preheating auxiliary kiln 8. The preheating auxiliary kiln 8 rotates at a speed of 1-2 r / min, and the temperature is controlled at 120-160℃. The preheating time is 1.5-2h.

[0027] After being processed by the preheating auxiliary kiln 8, the granules enter the firing kiln 9 through the firing kiln inlet 9-1 via the preheating auxiliary kiln outlet 8-2 and the heat-resistant conveyor 8-3 connected to it. The filling rate of the firing kiln is 10-15%. The high-temperature burner 9-5 is turned on to provide high-temperature heat medium into the firing kiln 9. The firing kiln 9 rotates at a speed of 4-5 r / min, and the temperature is controlled at 900-1100℃ for a firing time of 12-16 hours. After being fired in the firing kiln 9, the granules enter the cooler 10 through the cooler inlet 10-1 via the firing kiln outlet 9-2 and the heat-resistant conveyor 9-3 connected to it. The cooler 10 is a grate cooler. The cold air fan 10-4 is turned on to provide coolant into the cooler 10, cooling the fired granules to below 60℃.

[0028] After being cooled by the cooler 10, the granules enter the washing tank 11 through the cooler outlet 10-2 and the connected closed conveyor belt 10-3, via the washing tank inlet 11-1. The washing liquid inlet 11-3 is opened to introduce the washing liquid, which is acidic distilled water with a pH controlled at 4-5. The agitator 11-2 inside the washing tank is turned on, with a rotation speed controlled at 60-80 r / min, allowing the granules to disperse and tumble in the washing liquid, washing away impurities and scale buildup on the surface of the granules caused by high temperature or chemical reactions. The washing residence time is... After 30 minutes, the granules washed in the washing tank 11, through the washing tank outlet 11-4 and the connected spiral propulsion pipe 11-5, enter the dryer 12 through the dryer inlet 12-1. The dryer 12 is a drum dryer or a rotary dryer. The heat source 12-5 is turned on to provide heat medium into the dryer 12, and the temperature is controlled at 120-150℃. The dryer 12 repeatedly lifts the granules through the inclined rotating drum internal lifting plates 12-2 to directly contact the hot air, achieving efficient heat and mass transfer. The drying residence time is 1-2 minutes.

[0029] After being dried by the dryer 12, the granules are discharged from the dryer outlet 12-3 and the screw conveyor 12-4 connected to it, and enter the screening machine 13 through the screening machine inlet 13-1. The screening machine 13 is a circular rotary screening machine. After the granules are sieved through a 2-4mm screen, they become finished new mineral-based ozone catalyst filler with a specification of 2-4mm.

[0030] The finished new mineral-based ozone catalyst filler with a size of 2-4mm after being screened by screening machine 13 enters quality inspection platform 14 through screening machine outlet 13-2 and connected U-shaped belt conveyor 13-3 via quality inspection platform head end 14-1 for testing of various physicochemical indicators. After passing the test of quality inspection platform 14, the product is weighed by bagging metering hopper 15 and then enters bagged finished product and output platform 16 for bagging, belt conveyor, robot palletizing, automatic palletizing and other processes before being temporarily stored in warehouse.

[0031] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the present invention. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the essence and scope of the technical solutions of the present invention.

Claims

1. A novel mineral-based ozone catalyst filler preparation device, comprising a novel mineral-based material addition tank (1), a novel adhesive material addition tank (2), a pore-forming agent material addition tank (3), a stabilizer material addition tank (4), a batching device (5), a high-intensity horizontal mixing reaction tank (6), a granulator (7), a preheating auxiliary kiln (8), a firing kiln (9), a cooler (10), a washing tank (11), a dryer (12), a screening machine (13), a quality inspection platform (14), a bagging metering hopper (15), and a bagged finished product and conveying platform (16), characterized in that: The novel mineral-based material dosing tank (1) is round with a hopper bottom and is made of corrosion-resistant carbon steel. It has an inlet (1-1) at the top and a metering device and outlet (1-2) at the bottom. The batching device (5) is a cylindrical container made of corrosion-resistant carbon steel. It has a metering device and outlet (5-1) at the center of the bottom. The powerful horizontal mixing reaction tank (6) is round and made of corrosion-resistant carbon steel. It has end caps welded to both ends and an inlet (6-1) on one side of the top. A powerful agitator (6-2) is installed inside the tank. The powerful agitator (6-2) is a dual-shaft paddle agitator. An outlet (6-3) and its connection are located next to the end cap on one side of the bottom of the tank. The spiral conveyor pipe (6-4) is used. The granulator (7) is a disc granulator, which consists of a large disc, gears, a transmission device, a frame, a base, a scraper frame, etc. A granulator inlet (7-1) is provided at one end of the granulator (7), and a granulator outlet (7-2) and a spiral elevator (7-3) connected to it are provided at the other end of the granulator (7). The preheating auxiliary kiln (8) has a thickness of 16mm, an inclination of 3.5%, a rotation speed of 0.3~3.1r / min, and a motor power of 15kw. A preheating auxiliary kiln inlet (8-1) is provided at the front end of the preheating auxiliary kiln (8), and a preheating auxiliary kiln outlet (8-2) and a heat-resistant conveyor (8-3) connected to it are provided at the tail end of the preheating auxiliary kiln (8). A burner (8-4) is provided next to the preheating auxiliary kiln. The firing kiln (9) has a thickness of 18mm and an inclination of 3.The kiln has a rotation speed of 4-5 r / min and a motor power of 18 kW. A kiln inlet (9-1) is provided at the front end of the kiln (9), and a kiln outlet (9-2) and a high-temperature conveyor (9-3) connected to it are provided at the rear end of the kiln (9). Scrapers (9-4) are provided along the inner wall of the kiln (9), and a high-temperature burner (9-5) is provided next to the kiln (9). The cooler (10) has a thickness of 10 mm and is a grate cooler. A cooler inlet (10-1) is provided at the top of the cooler (10). A cooling outlet (10-2) and a sealed conveyor belt (10-3) connected to it are provided at the bottom of the cooling machine (10). A cold air blower (10-4) is provided next to the cooling machine (10). The washing tank (11) is a vertical cylindrical structure. The cylinder is mainly composed of a shell and a bottom end cap. The material is carbon steel corrosion resistant. A washer inlet (11-1) is provided on one side of the top of the washing tank (11). An agitator (11-2) is provided inside the washing tank (11). The agitator (11-2) is a vertical double spiral agitator with a rotation speed of 40. ~100r / min, frequency conversion, power of 2kw, a washing liquid inlet (11-3) is provided on the upper side of the washing tank (11), a washing tank outlet (11-4) and a spiral propeller (11-5) connected to the bottom side of the washing tank (11) are provided, the dryer (12) is a horizontal circular drum dryer with a thickness of 12mm, a dryer inlet (12-1) is provided on the top side of the dryer (12), a lifting plate (12-2) is provided along the inner wall of the dryer (12), and a dryer is provided on the bottom side of the dryer (12). The outlet (12-3) and the screw conveyor (12-4) connected to it are connected. A heat source (12-5) is installed next to the dryer (12). The screening machine (13) is a circular vibrating screening machine with a screen size of 2-4mm. The quality inspection platform (14) has an inspection platform head (14-1) including analytical testing instruments, meters, reagents, and a testing workbench. The bagging metering hopper (15) is a symmetrical funnel made of corrosion-resistant carbon steel. The bagged finished product output platform (16) includes bagging belt conveyor, robot palletizing, automatic palletizing, and other processes.

2. A novel method for preparing mineral-based ozone catalyst filler, characterized in that: The following steps are as follows: 100-mesh clinoptilolite powder modified with hydrochloric acid is placed into the new mineral-based material addition tank (1) through the inlet (1-1); 100-mesh maifanite powder is placed into the new adhesive material addition tank (2) through the inlet (2-1); 100-mesh onion skin powder after being soaked in acid, decolorized, washed, dried, crushed, and ground is placed into the pore-forming agent material addition tank (3) through the inlet (3-1); and 80-100-mesh polycarboxylate powder is placed into the stabilizer material addition tank (4) through the inlet (4-1).

3. The method for preparing a novel mineral-based ozone catalyst filler according to claim 2, characterized in that: The mass percentages of the above functional materials are as follows: the new mineral-based material is 65% of the clinoptilolite powder modified with hydrochloric acid, the new adhesive material is 20% of the maifanite powder, the pore-forming agent is 10% of the onion skin powder after being soaked in acid, decolorized, washed, dried, crushed and ground, and the stabilizer is 5% of the polycarboxylate powder. Then, open the metering device and metering device outlet (1-2) of the new mineral-based material addition tank, the metering device and metering device outlet (2-2) of the new adhesive material addition tank, the metering device and metering device outlet (3-2) of the pore-forming agent addition tank, and the metering device and metering device outlet (4-2) of the stabilizer material addition tank. After weighing and measuring each functional material according to the above mass percentages, it enters the batching device (5).

4. The method for preparing a novel mineral-based ozone catalyst filler according to claim 2, characterized in that: After the various functional materials entering the batching device (5) are collected, they are placed into the high-power horizontal mixing reaction tank (6) through the batching device metering device and metering device outlet (5-1). The water inlet (6-1) is opened and distilled water is added to keep the moisture content of the mixture in the high-power horizontal mixing reaction tank (6) at about 45%. The high-power agitator (6-2) is started and the rotation speed is controlled at 200-2500 / min to fully mix the wet mixture. The mixing reaction time is 20-25 minutes. Then the temperature is controlled at 60℃ for 1 hour for maturation.

5. The method for preparing a novel mineral-based ozone catalyst filler according to claim 2, characterized in that: The wet mixture after being stirred and mixed in the high-intensity horizontal mixing reactor (6) and matured is conveyed from the outlet (6-3) of the high-intensity horizontal mixing reactor and the spiral conveying pipe (6-4) connected thereto to the granulator inlet (7-1) into the granulator (7). Under the action of gravity and centrifugal force generated by the rotation of the inclined disc, it rolls down to the edge of the disc and continuously adheres to the mixture, making the particles larger. At the same time, under the action of friction at the bottom of the disc, the particles roll upward with the disc. When they reach the position of the scraper, the un-spherical particles pass through the gap between the scraper and the bottom disc, while most of the particles flow down to the edge of the disc along the scraper. In the continuous rolling, they adhere to the mixture again. After repeated cycles, the particles grow from small to large. After the particle size is controlled to reach 2-4 mm, they overflow from the edge of the disc.

6. The method for preparing a novel mineral-based ozone catalyst filler according to claim 2, characterized in that: The granulated material, which has been granulated to 2-4 mm, enters the preheating auxiliary kiln (8) through the preheating auxiliary kiln inlet (8-1) via the granulator outlet (7-2) and the screw conveyor (7-3) connected to it. The burner (8-4) is turned on to provide heat medium to the preheating auxiliary kiln (8). The preheating auxiliary kiln (8) rotates at a speed of 1-2 r / min, and the temperature is controlled at 120-160℃. The preheating time is 1.5-2 h.

7. The method for preparing a novel mineral-based ozone catalyst filler according to claim 2, characterized in that: The granules processed by the preheating auxiliary kiln (8) enter the firing kiln (9) through the firing kiln inlet (9-1) via the preheating auxiliary kiln outlet (8-2) and the heat-resistant conveyor (8-3) connected thereto. The filling rate of the firing kiln is 10-15%. The high-temperature burner (9-5) is turned on to provide high-temperature heat medium to the firing kiln (9). The firing kiln (9) rotates at a speed of 4-5 r / min. The temperature is controlled at 900-1100℃ and the firing time is 12-16h. The granules fired in the firing kiln (9) enter the cooler (10) through the cooler inlet (10-1) via the firing kiln outlet (9-2) and the heat-resistant conveyor (9-3) connected thereto. The cooler (10) is a grate cooler. The cold air fan (10-4) is turned on to provide cold medium to the cooler (10) to cool the fired granules to below 60℃.

8. The method for preparing a novel mineral-based ozone catalyst filler according to claim 2, characterized in that: The granules cooled by the cooler (10) enter the washing tank (11) through the cooler outlet (10-2) and the connected closed conveyor belt (10-3) via the washing tank inlet (11-1). The washing liquid inlet (11-3) is opened to introduce the washing liquid, which is acidic distilled water with a pH value controlled at 4-5. The agitator (11-2) inside the washing tank is turned on and the rotation speed is controlled at 60-80 r / min to disperse and tumble the granules in the washing liquid, washing out impurities and scale on the surface of the granules caused by high temperature or chemical reaction. The washing residence time is 30 minutes. In the washing tank (11), the granules washed by the washing tank (11) are discharged from the washing tank outlet (11-4) and connected to the spiral propulsion pipe (11-5) and enter the dryer (12) through the dryer inlet (12-1). The dryer (12) is a drum or dryer. The heat source (12-5) is turned on to provide heat medium to the dryer (12) and the temperature is controlled at 120-150℃. The dryer (12) repeatedly lifts the granules to make direct contact with the hot air through the inclined rotating cylinder internal lifting plate (12-2) to achieve efficient heat and mass transfer. The drying residence time is 1-2 minutes.

9. The method for preparing a novel mineral-based ozone catalyst filler according to claim 2, characterized in that: The granules dried by the dryer (12) enter the screening machine (13) through the dryer outlet (12-3) and the screw conveyor (12-4) connected to it via the screening machine inlet (13-1). The screening machine (13) is a circular rotary screening machine. After the granules pass through a 2-4 mm screen, they become a finished new mineral-based ozone catalyst filler with a specification of 2-4 mm.

10. The method for preparing a novel mineral-based ozone catalyst filler according to claim 2, characterized in that: The finished new mineral-based ozone catalyst filler with a specification of 2-4mm after being screened by the screening machine (13) enters the quality inspection platform (14) through the screening machine outlet (13-2) and the U-shaped belt conveyor (13-3) connected to it via the first end (14-1) of the quality inspection platform for testing of various physicochemical indicators. After passing the quality inspection platform (14), the product is weighed by the bagging metering hopper (15) and then enters the bagged finished product and output platform (16) for bagging, belt conveyor, robot palletizing, automatic palletizing and other processes before being temporarily stored in the warehouse.

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