Catalyst carrier adsorbent production system

Abstract

The present invention discloses a catalyst carrier adsorbent production system, and relates to the technical field of catalyst carrier adsorbent production, and the catalyst carrier adsorbent production system comprises the following steps: raw materials are prepared according to a mass percentage, and are sent into a flash evaporation drying tower for drying; the method comprises the following steps: drying raw materials, feeding the dried raw materials into a multi-stage crusher for crushing, feeding the crushed raw materials into a quick removal furnace for roasting, putting an auxiliary agent into a container, adding water, fully oscillating and mixing, mixing a solution prepared by oscillating and mixing the auxiliary agent and the water, and feeding the mixed solution and a material output by the quick removal furnace into a heat exchanger; the raw materials output by the heat exchanger and a solution prepared by oscillating and mixing auxiliaries and water are conveyed to a forming machine to be formed to obtain material balls, the material balls are conveyed to a curing device to be subjected to hydration curing treatment for 24 hours, the material balls are conveyed to Venturi equipment to be washed and dedusted, and the material balls washed with water are conveyed to a calcination activation furnace to be activated; the heat of the materials output by the quick release furnace can be fully utilized, the uniformity of the density and the strength of the pellets is improved, and the consistency of the quality of the pellets is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of catalyst carrier adsorbent production, in particular to a catalyst carrier adsorbent production system. Background Art

[0002] Activated alumina is a catalyst carrier adsorbent that is widely used in many fields such as chemical industry, environmental protection, and energy. The quality of its performance will directly affect the efficiency and effectiveness of related processes.

[0003] However, in the existing activated alumina production process, raw materials are calcined into a powder in a rapid degassing furnace and transported by airflow. Before entering the next production process, the powder is separated from the gas, which carries a large amount of heat with it and is discharged, resulting in heat waste. Furthermore, pellets are typically formed by the rotation of a granulating disk and the oscillation of a solution composed of an additive and water mixture. This process prevents the raw materials and solution from being fully mixed, resulting in uneven density and strength of the pellets and inconsistent quality. Summary of the Invention

[0004] The purpose of the present invention is to provide a catalyst carrier adsorbent production system that can fully utilize the heat of the material output by the quick-release furnace, improve energy utilization, solve the problem of low heat exchange efficiency of traditional heat exchange equipment, and arrange annularly distributed arc blocks on the inner wall of the granulation disk, and arrange nozzles on the arc blocks, so as to achieve better tumbling and mixing of the raw materials, fully mix the raw materials and the solution, improve the uniformity of the density and strength of the ball, and ensure the consistency of the quality of the ball.

[0005] The above-mentioned optimized structure of the present invention is achieved through the following technical solution: A catalyst carrier adsorbent production system includes the following steps: S100, raw materials are mixed according to mass percentage and sent to a flash drying tower for drying; S200, after drying, the material passes through a disc feeder, and the feeding amount is adjusted to be sent to a multi-stage crusher for crushing. The crushed particle size after crushing is controlled at 900 mesh-1000 mesh; S300, the crushed raw materials are sent to the quick-release furnace for roasting, and the Roots blower is started; S400, placing the additive in a container and adding water, shaking and mixing thoroughly to prepare a solution of a specified concentration for use; S500, mixing a solution prepared by oscillating and mixing an additive and water with the material output from the quick-release furnace and sending the solution into a heat exchanger for heat exchange; S600, the raw material output from the heat exchanger and a solution prepared by mixing an additive and water by oscillation are sent to a molding machine for molding to obtain pellets; S700, sending the pellets to a curing device for 24 hours of hydration curing treatment; S800, sending the balls in step S700 to a venturi device for washing and dust removal; S900, the washed pellets are sent to a calcination activation furnace for activation; The molding machine includes a fixed frame, a rotating motor fixed on the fixed frame, a granulation disk rotatable on the fixed frame, a nozzle for spraying a solution onto the granulation disk, and a hopper for feeding material to the granulation disk; The granulation disk is coaxially connected to the output shaft of the rotating motor. A plurality of arc blocks distributed in a ring are provided on the inner wall of the granulation disk. The plurality of arc blocks are connected end to end. The height of the arc blocks gradually increases along the rotation direction of the granulation disk.

[0006] In some embodiments, the nozzle is embedded in one end surface of the arc block and is located above the connection between two adjacent arc blocks.

[0007] In some embodiments, a retaining ring is coaxially provided on the granulation disk, and a filter ring is coaxially and detachably connected to the retaining ring.

[0008] In some embodiments, the forming machine further comprises a scraper, which is fixed on the fixing frame, and the bottom of the scraper slides and rubs against the inner surface of the granulation disk.

[0009] In some embodiments, the heat exchanger includes a delivery pipe, which is arranged between the discharge port of the quick-release furnace and the hopper. A spiral air supply pipe is wound around the delivery pipe, one end of the air supply pipe is connected to the blower, and the other end is connected to the calcination activation furnace. A spiral liquid supply pipe is also provided on the delivery pipe, one end of the liquid supply pipe is connected to the liquid supply pump, and the liquid supply pump shell delivers the solution prepared by oscillating the additive and water to the liquid supply pipe, and the other end of the liquid supply pipe is connected to the nozzle.

[0010] In some embodiments, a spiral groove is provided on the delivery pipe, and the air delivery pipe and the liquid delivery pipe are provided in the spiral groove.

[0011] In some embodiments, thermally conductive silica gel is filled between the spiral groove and the air supply pipe and the liquid supply pipe.

[0012] In some embodiments, the delivery pipe, the air delivery pipe, and the liquid delivery pipe are provided with a heat insulating sleeve.

[0013] In some embodiments, a dust collector is provided between the conveying pipe and the hopper.

[0014] In some embodiments, the multi-stage pulverizer is a three-stage pulverizer, the particle size of each stage of pulverization gradually decreases, and the rotation speed of each stage of pulverization is different, the first stage speed is 800-1200r / min, the second stage speed is 1500-2000r / min, and the third stage speed is 2500-3000r / min.

[0015] One or more of the above technical solutions in the embodiments of the present invention have at least the following technical effects or advantages: The present invention utilizes the heat output from the quick-release furnace by combining spiral air and liquid delivery pipes with the delivery pipe, thereby improving energy utilization and resolving the low heat exchange efficiency problem of conventional heat exchange equipment. Furthermore, the annularly distributed arc blocks on the inner wall of the granulation disk in the molding machine divide the large granulation concentration area of ​​the raw materials in the granulation disk into multiple small granulation concentration areas. This reduces the aggregation of raw materials in the granulation disk without affecting the formation of pellets in the granulation disk, thus avoiding the agglomeration of raw materials in the granulation disk. Furthermore, the guidance of the arc blocks and the direction of the liquid spray from the nozzle enable better tumbling and mixing of the raw materials, allowing the raw materials and the solution to be fully mixed, thereby improving the uniformity of the density and strength of the pellets and ensuring the consistency of the pellet quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1 The process of the present invention; Figure 2 is a process flow chart of the present invention; Figure 3 It is a structural schematic diagram of the molding machine of the present invention; Figure 4 This is a schematic diagram of the connection structure of the nozzle, arc block and granulation disk of the present invention; Figure 5 Schematic diagram of the structure of the heat exchanger of the present invention.

[0018] In the figure: 1. Flash drying tower; 2. Multi-stage crusher; 3. Calcining and activation furnace; 4. Quick-release furnace; 5. Heat exchanger; 51. Conveying pipe; 52. Air supply pipe; 53. Liquid supply pipe; 6. Forming machine; 61. Fixed frame; 62. Granulating disc; 63. Nozzle; 64. Arc block; 65. Hopper; 66. Baffle ring; 67. Filter ring net; 68. Scraper; 7. Curing device. DETAILED DESCRIPTION

[0019] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0020] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0022] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0023] refer to Figure 1-5 , a catalyst carrier adsorbent production system, including the following steps: S100, the raw materials are prepared by mass percentage with aluminum oxide ≥ 68%, loss on ignition ≤ 30%, sodium oxide ≤ 0.2%, ferric oxide ≤ 0.001%, and moisture 8%-10%, and sent to flash drying tower 1 for drying; S200, after drying, passes through a disc feeder, adjusts the feeding amount and sends it to the multi-stage crusher 2 for crushing, and the crushed particle size after crushing is controlled at 900 mesh-1000 mesh; the multi-stage crusher 2 can be a three-stage crusher, the particle size of each stage is gradually reduced, and the speed of each stage is different, the first stage speed is 800-1200r / min, the second stage speed is 1500-2000r / min, and the third stage speed is 2500-3000r / min. The crushed particle size after crushing by the first crusher is controlled at 300 mesh-400 mesh; then sent to the second crusher for crushing, and the crushed particle size after crushing by the second crusher is controlled at 500 mesh-800 mesh; then sent to the third crusher for crushing, and the crushed particle size after crushing by the third crusher is controlled at 900 mesh-1000 mesh; S300: The crushed raw materials are fed into the quick-release furnace 4 for roasting. The Roots blower is started and the primary air control butterfly valve is adjusted to maintain the primary air pressure at 80-430 mmH2O. The inlet temperature of the quick-release furnace 4 is controlled within the range of 720°C-870°C, and the outlet temperature is controlled within the range of 430°C-480°C. S400, placing an auxiliary agent in a container and adding water, shaking and mixing thoroughly to prepare a solution of a specified concentration for use; the auxiliary agent can be water glass or magnesium nitrate, and the amount of the auxiliary agent is 0.5wt%-0.8wt%; S500, mixing the solution prepared by mixing the additive and water by oscillation and sending it to the heat exchanger 5 with the material output from the quick degassing furnace 4 for heat exchange; S600, the raw material output from the heat exchanger 5 and the solution prepared by mixing the additive and water are sent to the molding machine 6 for molding to obtain pellets; S700, sending the above-mentioned pellets to the curing device 7 for 24 hours of hydration curing treatment; S800, sending the balls in step S700 to a venturi device for washing and dust removal; S900, the washed pellets are sent to the calcination activation furnace 3 for activation, and the calcination activation furnace 3 is controlled to be in a negative pressure state, and the calcination temperature is controlled at 550°C.

[0024] Specifically, raw materials with an aluminum oxide content of ≥68%, loss on ignition ≤30%, sodium oxide ≤0.2%, and ferric oxide ≤0.001%, with a moisture content between 8% and 10%, are selected and formulated strictly according to mass percentage. This ratio design is based on the physical and chemical performance requirements of activated alumina. As the main component, aluminum oxide directly determines the basis of product activity; low levels of sodium oxide and ferric oxide impurities can avoid negative impacts on subsequent roasting and activation processes; and precise control of moisture content ensures efficient operation of the drying process, preventing excessive moisture from increasing drying energy consumption and reducing efficiency.

[0025] Turn on the power of the control box, start the induced draft fan, and adjust the induced draft fan inlet valve. When the quick-release furnace 4 is not started, close the exhaust gas utilization valve. When the quick-release furnace 4 is started and the flue temperature reaches 600℃, open the exhaust gas utilization valve to preheat the pipeline, fully utilize the waste heat of the quick-release furnace 4, and reduce energy consumption. When the inlet air temperature of the flash drying tower 1 exceeds 1100℃, start the feeder main unit and turn on the power switch of the speed regulator. After the red light comes on, slowly adjust the feeder speed to 250-500r / min, start the air lock fan (air lock device) to control the inlet air temperature to no higher than 135℃ and the outlet air temperature to no lower than 60℃, to ensure the stability of the drying process and avoid the quality of the raw materials being affected by excessively high or low temperatures. After everything is normal, slowly and evenly add materials to prevent inconsistent drying effects due to uneven addition, which will affect subsequent processes.

[0026] Then start the multi-stage crusher 2. After the multi-stage crusher 2 is operating normally, start the disc feeder and adjust the feeding amount to ensure the normal production of the multi-stage crusher 2. Following this startup sequence can avoid problems such as blockage and idling caused by improper equipment startup and ensure the continuity of the crushing process.

[0027] The dried raw materials are fed into the primary pulverizer via a disc feeder, where the particle size is controlled between 300-400 mesh. This stage provides initial crushing, laying the foundation for subsequent fine grinding. The primary pulverized material enters the secondary pulverizer for further pulverization to a particle size of 500-800 mesh. This particle size range effectively increases the specific surface area of ​​the raw material powder. According to surface energy theory, the finer the powder, the higher the surface energy and the shorter the migration distance. During the subsequent forging activation stage, particles bond through surface atomic diffusion and intraparticle atomic diffusion. Because the activation energy of surface diffusion is lower than that of bulk diffusion, finer powders are more likely to bond through surface diffusion, thereby lowering the forging activation temperature and improving product performance. The secondary pulverized material is then fed into the tertiary pulverizer, where the particle size is controlled between 900-1000 mesh. Extremely fine particles significantly increase the particle count and reduce the interparticle spacing. According to the principles of material mechanics, this is extremely beneficial for improving the yield strength of the material, thereby ensuring product stability during use.

[0028] After multiple stages of pulverization, the mesh size of the raw material powder can be increased. The finer the raw material powder, the higher the surface energy, the shorter the material migration distance, and thus the faster the densification rate. This ensures the bonding of ultrafine particles with a large specific surface area during the subsequent forging activation stage. This is because the bonding between particles during the forging activation stage occurs through surface atomic diffusion and intraparticle atomic diffusion. The activation energy of surface diffusion is lower than that of volume diffusion. Therefore, the bonding of ultrafine particles with a large specific surface area is largely achieved through surface diffusion with low activation energy, thus reducing the temperature during the forging activation stage. Furthermore, the forging activation stage and grain growth are both based on mass transfer processes, so grain growth is inevitable during sintering. Generally, finer grains (finer raw materials) improve the performance of the forging activation stage, as fine particles can ensure activation and forming properties. Secondly, smaller particles have a greater number of particles, resulting in smaller interparticle distances, which is more beneficial for improving the material's yield strength.

[0029] The machine can only be shut down after the disc feeder hopper is empty and the turbine grinder is under no load. Strictly following this rule can prevent blockage and damage caused by equipment shutdown due to material, extend the service life of the equipment, and ensure normal operation at the next startup. After that, the raw materials crushed by the multi-stage crusher 2 are sent to the quick-release furnace 4 for roasting, the Roots blower is started, and the primary air control butterfly valve is adjusted to keep the primary air pressure at 80-430mmH2O, among which the inlet temperature control range of the quick-release furnace 4 is 720℃-870℃, and the outlet temperature control range is 430℃-480℃; at the same time, before starting, check whether the oil level of the Roots blower is appropriate, open the circulation pipeline butterfly valve after manual cranking is normal, open the gate leading to the flue, and close the gate leading to the quick-release furnace 4 at the same time, start the water pump, check whether the water pump is operating normally, and check whether the circulating water pipeline is unobstructed in turn, turn on the instrument power supply, so that the instrument is in normal state, check whether the spiral feeder is normal, check whether the quick-release cyclone separator fan is operating normally, and check whether the bag dust collector cleaning mechanism is operating normally. After ensuring that the above are normal, start the Roots blower, adjust the primary air control butterfly valve to keep the primary air pressure at around 80-430mmH2O, adjust the flue plug plate, adjust the air-to-gas ratio of the burner, introduce open flame, and when the flue temperature reaches 600℃, start the circulating water pump, observe that the cooling circulating water surface flow is normal, start the induced draft fan, open the cold air configuration butterfly valve, and switch the flue.

[0030] When the inlet temperature of the rapid-release furnace 4 reaches 720°C, the screw feeder is activated and the variable speed motor is slowly adjusted to feed the raw materials. The inlet temperature of the rapid-release furnace 4 is controlled within a range of 720°C-870°C, and the outlet temperature is controlled within a range of 430°C-480°C. Precise temperature control ensures that the raw materials undergo the desired physical and chemical changes during the roasting process, such as dehydration and crystal transformation, providing qualified intermediate products for subsequent processes. The powdered raw materials flowing out of the rapid-release furnace 4 are transformed into a dust-laden airflow by the airflow and transported to the heat exchanger 5, preparing for the heat exchange process. After roasting is complete, the feed port speed is automatically adjusted to zero, the speed regulator power is turned off, and feeding is stopped. Simultaneously, the flue damper is opened, and the rapid-release damper is closed to stop the air flow. When the bag inlet temperature is less than 150°C, the exhaust fan and circulating water pump are stopped. When the flue temperature falls below 300°C, the Roots blower is automatically shut off, and the flue damper is closed to insulate the furnace. It can effectively protect the equipment from damage caused by improper operation, while ensuring that the waste heat is fully utilized.

[0031] Place the additive in a container and add water to fully shake and mix to prepare a solution of specified concentration for use; the additive can be water glass or magnesium nitrate, and the amount of the additive is 0.5wt%-0.8wt%. After mixing, the addition of the additive can improve the physical and chemical properties of the product in subsequent molding, activation and other processes, such as enhancing the binding force between particles and adjusting the crystal structure. The solution prepared by shaking and mixing the additive and water is transported to the heat exchanger 5 by a liquid pump, and heat exchange is carried out with the dust-laden airflow from the quick-release furnace 4. During this process, the additive solution absorbs the heat of the dust-laden airflow and the temperature rises; while the dust-laden airflow is initially cooled. After heat exchange, on the one hand, the temperature of the dust-laden airflow is reduced, which is convenient for subsequent dust collection and separation; on the other hand, the temperature of the additive solution is increased, which is conducive to better mixing with the raw materials in the subsequent molding process. After initial cooling, the dust-laden airflow passes through a dust collector, where the raw material powder and gas are separated. The gas, which carries a large amount of heat, is then transported to the calcination and activation furnace 3 for heat recycling, improving energy efficiency and reducing production costs. The raw material powder and the solution formed by the oscillation of the additive and water are then sent to the molding machine 6 for molding to produce pellets. During the molding machine 6, the raw material and the solution formed by the oscillation of the additive and water are alternately added to form the pellets. This ensures that the raw material and the additive solution are fully contacted and evenly mixed, ensuring consistent pellet composition and improving product quality and stability. The pellets are then sent to a curing device 7 for a 24-hour hydration curing process. During the curing process, environmental parameters such as temperature and humidity within the curing device are strictly controlled to provide suitable hydration reaction conditions for the pellets. Through hydration curing, a series of physical and chemical changes occur within the pellets, such as water penetration and chemical bond formation, enhancing their strength and stability, laying a good foundation for subsequent processes.

[0032] The pellets are then sent to a Venturi device for washing and dust removal. The Venturi device utilizes a mixture of high-speed airflow and liquid to generate powerful scouring and adsorption forces, removing impurities and dust from the pellet surfaces. This process effectively improves pellet surface cleanliness, prevents impurities from negatively impacting product performance, and ensures product quality. The washed pellets are then sent to the calcination and activation furnace 3 for activation. The furnace is maintained at a negative pressure and a calcination temperature of 550°C. At this temperature, due to the principle of particle ultrafineness, the specific surface area increases, increasing the number of surface active centers, which facilitates catalyst selectivity and high reactivity, resulting in a high-quality product with a large specific surface area. During the activation phase, after all tests are normal, the Roots blower is started, the circulation line butterfly valve and the primary air butterfly valve are adjusted, the air-to-oil ratio of the nozzle is adjusted, an open flame is introduced, and the positive flow valve is opened to ignite the atomized oil. The primary and secondary air ratios are adjusted to ensure a normal temperature rise. After the flue temperature reaches 600°C, open the gate leading to the calcination activation furnace 3, and at the same time close the flue gate, introduce hot air into the calcination activation furnace 3 for temperature activation. When the holding time is reached, close the activation gate valve, open the flue gate valve, and then release the activated product into the cooling plate. The materials stored in the quantity tank should be put into the calcination activation furnace 3 in time, and then alternately switch the activation and flue gate valves, and then heat up and continue the activation production; screen the cooled products, and package the qualified products according to the specified packaging to prevent moisture absorption, put them into storage in time, and stack them according to different specifications. At the same time, write identification plates for easy product management and traceability. At this point, the entire production process of activated alumina is completed. Through strict control and coordinated cooperation of each process, the production of high-quality activated alumina products is ensured.

[0033] The forming machine 6 includes a fixed frame 61, a rotating motor fixed on the fixed frame 61, a granulation disk 62 that can rotate on the fixed frame 61, a nozzle 63 for spraying solution to the granulation disk 62, and a hopper 65 for feeding material to the granulation disk 62; the fixed frame 61 is an integral support frame, the granulation disk 62 is coaxially connected to the output shaft of the rotating motor, and the rotating motor provides a rotational driving force. The inner wall of the granulation disk 62 is provided with a plurality of annularly distributed arc blocks 64, and the plurality of arc blocks 64 are connected end to end. The height of the arc block 64 gradually increases along the rotation direction of the granulation disk 62. Through the rotation of the granulation disk 62, multiple arc blocks 64 are driven to rotate accordingly, thereby dividing the large granulation concentration area in the granulation disk 62 into multiple small granulation concentration areas. Without affecting the formation of material balls in the granulation disk 62, the aggregation of raw materials in the granulation disk 62 is reduced to avoid the agglomeration of raw materials in the granulation disk 62. The hopper 65 is arranged above the granulation disk 62, and can realize quantitative supply of raw materials through gravity feeding.

[0034] In some embodiments, a nozzle 63 is embedded in one end face of the arc block 64, connected to the liquid feeding pipe 53, and located above the junction of two adjacent arc blocks 64. This allows for precise spraying of the additive solution when the raw material rolls to the top of the arc block 64, promoting surface adhesion of the particles. An annular groove can be provided in the middle of the granulation disk 62. A rotatable ring can be provided within the annular groove, which rotates and is sealed with the annular groove. The annular groove is connected to multiple nozzles 63, and a liquid flow channel is provided within the rotating ring. This flow channel is connected to the annular groove and is connected to the liquid feeding pipe 53 through the flow channel. As the granulation disk 62 rotates, a solution formed by the oscillation mixture of the additive and water can be delivered to the nozzle 63 and sprayed into the granulation disk 62.

[0035] Specifically, the rotating motor of the molding machine 6 drives the granulation disk 62 to rotate. The raw materials enter the granulation disk 62 through the hopper 65, and the nozzle 63 sprays the solution prepared by mixing the auxiliary agent and water into the granulation disk 62. The height of the arc block 64 on the inner wall of the granulation disk 62 gradually increases along the rotation direction of the granulation disk 62. When the raw material rotates in the granulation disk 62, due to the presence of multiple arc blocks 64, the raw material in the entire granulation disk 62 will be divided into several small granulation areas, guiding the raw material to rotate along the surface of the arc block 64, and its height in the granulation disk 62 gradually increases. When it rotates to the top of the arc block 64, the raw material lacks the support of the arc block 64, and under the action of its own gravity, it will fall to the lower position of the next arc block 64. At this time, the nozzle 63 embedded in the end face of the previous arc block 64 will spray out a mist solution, so that the raw material and the solution are fully mixed, and fall onto the next arc block 64, contacting the raw material on the next arc block 64 to form material balls, thereby improving the granulation uniformity of the molding machine 6. During this process, the mist solution sprayed by the nozzle 63 is wrapped by the suspended raw material and the raw material on the rear arc block 64, achieving complete contact between the mist solution and the raw material, thereby reducing the volatilization of the mist solution, improving the utilization efficiency of the solution, and saving the solution raw material.

[0036] In some embodiments, a retaining ring 66 is coaxially provided on the granulation disk 62, and a filter ring net 67 is coaxially and detachably connected to the retaining ring 66, which can be connected by a snap-on structure. The filter ring net 67 can be made of 304 stainless steel woven mesh with a pore size of 0.8-1.2 mm. The retaining ring 66 can intercept the escaped smaller particles of raw materials and recycle them to the granulation disk 62. The filter ring net 67 can allow the material balls that meet the standards to pass through, thereby realizing the discharge of the molding machine 6, and at the same time allowing gas to circulate to maintain the stability of the granulation environment.

[0037] In some embodiments, the forming machine 6 also includes a scraper 68, which is fixed on the fixed frame 61, and the bottom of the scraper 68 slides and rubs against the inner surface of the granulation disk 62. The scraper 68 can be tilted 5-15° along the radial direction of the granulation disk 62 to form an axial thrust for the material. A small gap of ≤0.5mm is maintained between the bottom of the scraper 68 and the inner surface of the granulation disk 62, and the residual raw materials on the disk surface are removed by sliding friction to prevent uneven particle size caused by adhesion of the raw materials.

[0038] In some embodiments, the heat exchanger 5 includes a delivery pipe 51, which is disposed between the discharge port of the quick-release furnace 4 and the hopper 65. The delivery pipe 51 can be a U-shaped pipe. A spiral air delivery pipe 52 is wound around the delivery pipe 51. One end of the air delivery pipe 52 is connected to the blower, and the other end is connected to the calcination activation furnace 3. This can preheat the activation furnace intake air and realize resource utilization. The delivery pipe 51 is also provided with a spiral liquid delivery pipe 53. One end of the liquid delivery pipe 53 is connected to a liquid delivery pump. The liquid delivery pump shell delivers a solution formed by oscillating and mixing the additive and water to the liquid delivery pipe 53. The other end of the liquid delivery pipe 53 is connected to the nozzle 63. The spiral shape can accelerate the flow of gas or liquid, thereby improving the heat exchange rate.

[0039] The dust-laden airflow flows in the conveying pipe 51, the external gas flows in the air delivery pipe 52 under the action of the blower, and the solution formed by the oscillation mixture of the additive and water flows in the liquid delivery pipe 53, which can realize heat exchange between the dust-laden airflow and the external gas and the solution formed by the oscillation mixture of the additive and water. When the nozzle 63 sprays out a high-temperature solution, the high-temperature gas in the solution encounters the raw material with a lower temperature, and heat exchange occurs. The high-temperature gas is liquefied and adsorbed on the surface of the raw material, thereby increasing the humidity of the raw material. At the same time, the temperature of the raw material increases, increasing the activity of the raw material, thereby accelerating the granulation of the raw material.

[0040] In some embodiments, a spiral groove is provided on the delivery pipe 51, and an air delivery pipe 52 and a liquid delivery pipe 53 are provided in the spiral groove, which can increase the contact area between the air delivery pipe 52 and the liquid delivery pipe 53 and the material in the delivery pipe 51 and improve the heat exchange efficiency.

[0041] In some embodiments, thermally conductive silicone is filled between the spiral groove and the air supply pipe 52 and the liquid supply pipe 53 to enhance the heat conduction efficiency and improve the connection stability between the air supply pipe 52, the liquid supply pipe 53 and the delivery pipe 51.

[0042] In some embodiments, the delivery pipe 51, the air delivery pipe 52 and the liquid delivery pipe 53 are provided with an insulation sleeve. The insulation sleeve can be made of nano aerogel felt. The insulation sleeve can reduce heat loss and further improve energy utilization.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A catalyst carrier adsorbent production system, characterized by: The process includes the following steps: S100, raw materials are configured according to mass percentage and sent to the flash drying tower (1) for drying; S200, after drying, the material passes through a disc feeder, and the feeding amount is adjusted and sent to a multi-stage crusher (2) for crushing. The crushed particle size after crushing is controlled to be 900 mesh-1000 mesh; S300, the crushed raw materials are sent to the quick-release furnace (4) for roasting, and the Roots blower is started; S400, placing the additive in a container and adding water, shaking and mixing thoroughly to prepare a solution of a specified concentration for use; S500, mixing the solution prepared by oscillating the auxiliary agent and water and sending it to the heat exchanger (5) with the material output from the quick-release furnace (4) for heat exchange; S600, the raw material output from the heat exchanger (5) and the solution prepared by mixing the auxiliary agent and water by oscillation are sent to the molding machine (6) for molding to obtain pellets; S700, sending the pellets to the curing device (7) for 24 hours of hydration curing treatment; S800, sending the balls in step S700 to a venturi device for washing and dust removal; S900, sending the washed pellets to a calcination activation furnace (3) for activation; The molding machine (6) includes a fixed frame (61), a rotating motor fixed on the fixed frame (61), a granulation disk (62) rotatable on the fixed frame (61), a nozzle (63) for spraying a solution onto the granulation disk (62), and a hopper (65) for feeding material to the granulation disk (62); The granulation disk (62) is coaxially connected to the output shaft of the rotating motor. A plurality of arc blocks (64) distributed in a ring shape are provided on the inner wall of the granulation disk (62). The plurality of arc blocks (64) are connected end to end. The height of the arc blocks (64) gradually increases along the rotation direction of the granulation disk (62).

2. A catalyst carrier adsorbent production system according to claim 1, characterized in that: The nozzle (63) is embedded in one end surface of the arc block (64) and is located above the connection between two adjacent arc blocks (64).

3. A catalyst support adsorbent production system according to claim 1, characterized in that: A retaining ring (66) is coaxially provided on the granulation disk (62), and a filter ring net (67) is coaxially and detachably connected to the retaining ring (66).

4. A catalyst support adsorbent production system according to claim 1, characterized in that: The forming machine (6) further comprises a scraper (68), wherein the scraper (68) is fixed on the fixing frame (61), and the bottom of the scraper (68) is in sliding friction with the inner surface of the granulation disk (62).

5. A catalyst support adsorbent production system according to claim 2, characterized in that: The heat exchanger (5) includes a delivery pipe (51), which is arranged between the discharge port of the quick-release furnace (4) and the hopper (65). A spiral air delivery pipe (52) is wound around the delivery pipe (51), one end of the air delivery pipe (52) is connected to the blower, and the other end is connected to the calcination activation furnace (3). A spiral liquid delivery pipe (53) is also provided on the delivery pipe (51), one end of the liquid delivery pipe (53) is connected to the liquid delivery pump, and the liquid delivery pump shell delivers a solution prepared by oscillating and mixing the auxiliary agent and water to the liquid delivery pipe (53), and the other end of the liquid delivery pipe (53) is connected to the nozzle (63).

6. A catalyst support adsorbent production system according to claim 5, characterized in that: The delivery pipe (51) is provided with a spiral groove, and the air delivery pipe (52) and the liquid delivery pipe (53) are provided in the spiral groove.

7. A catalyst support adsorbent production system according to claim 6, characterized in that: Thermally conductive silica gel is filled between the spiral groove and the air supply pipe (52) and the liquid supply pipe (53).

8. The catalyst carrier adsorbent production system according to claim 5, characterized in that: The delivery pipe (51), the air delivery pipe (52), and the liquid delivery pipe (53) are provided with heat insulation sleeves.

9. A catalyst support adsorbent production system according to claim 5, characterized in that: A dust collector is provided between the conveying pipe (51) and the hopper (65).

10. The catalyst support adsorbent production system according to claim 1, characterized in that: The multi-stage pulverizer (2) is a three-stage pulverizer, the particle size of each stage of pulverization gradually decreases, and the rotation speed of each stage of pulverization is different, the first stage rotation speed is 800-1200r / min, the second stage rotation speed is 1500-2000r / min, and the third stage rotation speed is 2500-3000r / min.

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