33 results about "Sulphur granules" patented technology

The present application is suitable for biogas treatment equipment technical field, provide a kind of biogas biological desulfurization device, including: tower body, top is equipped with circulating spray system, tower body middle section is equipped with filler layer;Sulfur removal system is set to the bottom of tower body, sulfur removal system includes: the aeration head being set to the bottom of tower body, the liquid inside the bottom of tower body is supplied with gas by aeration head, the inside of tower body is equipped with suction material mechanism that adsorbs floating scum on the top of liquid, and the floating object on the top of liquid is removed by suction material mechanism;Slidingly connected to the bottom of tower body's discharge tray, discharge tray is slid down after liquid is accumulated to a certain degree, whereby, the structure for automatically removing and dredging sulfur particles on the bottom is set in the present application, it is guaranteed that the accumulated sulfur particles can be automatically removed regularly, while the small sulfur particles in suspension are removed, the automatic cleaning and particle removal of desulfurization device are realized, and the maintenance cost in later period is reduced.

The invention belongs to the technical field of feed additives, and particularly relates to coated biological sulfur as well as a preparation method and application thereof. The coated biological sulfur is prepared from a biological sulfur granule core and a coating film coated outside the biological sulfur granule core, and the average particle size of the coated biological sulfur granule is 10-80 meshes. The prepared coated biological sulfur is simple in formula and low in preparation cost, covers the special odor of the biological sulfur, is good in palatability, can be used as a feed additive enteric-coated preparation, can be intensively released and absorbed in intestinal tracts, can obviously improve the bioavailability of the biological sulfur, and is a safe, effective and stable feed additive.

The present invention relates to pesticides and fertilisers of controlled release zeolitic sulphur that are mechanochemically activated. For this purpose, 98% pure elemental sulphur with a particle size class up to 0.10 mm and a moisture content up to 10%, and processed zeolitic ore, or zeolitic ore processed and modified with nutrients for plants, with a particle size class up to 0.10 mm and a moisture content up to 10%, in a 2:1 or 1:1 or 1:2 ratio are introduced into a horizontal or vertical mixer and are mixed between 30 minutes and one hour. The mass obtained is introduced into a microniser mill that is suitable for sulphur work, processed zeolitic material, or zeolitic material processed and modified with nutrients, between 75 wt.-% and 95 wt.-% of the final product is introduced and said mixture is ground (micronised) between 30 minutes and 2 hours. As a result, a water-soluble pesticide or fertiliser of zeolitic sulphur with a particle size up to 0.05 mm is obtained comprising lower sulphur doses than those traditionally used in the treatment of plants with pesticidal activity for controlling the pests affecting the same, or as a leaf and soil fertiliser of the plants with pesticidal activity.

According to the sulfur production system provided by the utility model, in the production process, spherical sulfur particles output by the wet granulation module enter the dewatering screen for sulfur and fall onto the screen plate of the dewatering screen for sulfur, and the screen plate is vibrated through the driving assembly, so that the spherical sulfur particles entering the dewatering screen are dewatered; in the dehydration process, the spherical sulfur particles are blown through the blowing assembly, moisture attached to the surfaces of the sulfur particles is taken away through blowing, and the dehydration effect is improved; and the dehydrated spherical sulfur particles are input into the product output module and are stored and output, so that the production of sulfur is completed. According to the sulfur production system provided by the utility model, the product moisture in the sulfur production process is reduced, and the product quality is improved.

The present invention discloses a sulfur particle growth agent for biogas complex iron wet desulfurization, which is composed of fatty alcohol polyoxyethylene ether, polyacrylamide, glycerol, and polysiloxane defoaming agent. The desulfurization treatment method using the above growth agent is as follows: the complex iron solution is mixed with the sulfur particle growth agent to obtain a desulfurization liquid, the desulfurization liquid is injected into the desulfurization liquid storage tank, the gas-liquid mixing pump is started to mix the desulfurization liquid and the biogas to be treated and inject them into the desulfurization chamber, the desulfurization liquid in the desulfurization chamber oxidizes the sulfur element contained in the biogas into sulfur element, and then aggregates the sulfur element to form sulfur particles, the desulfurization liquid containing sulfur particles is filtered through a filter, the desulfurization liquid is refluxed to the desulfurization liquid storage tank, the sulfur particles are collected in the filter, and the biogas after desulfurization is discharged from the exhaust pipe to the desulfurization tank. The present invention can improve the shortcomings of the prior art, rapidly increase the sulfur particles and filter them out.

The present application discloses a regeneration and sedimentation integrated device for acid gas desulfurization, including a tank body, in which a regeneration zone and a sedimentation zone are sequentially arranged along the flow direction of the desulfurized rich liquid, the regeneration zone includes at least 3 sub-regeneration zones connected in sequence, the bottom of each sub-regeneration zone is provided with an aeration device, the first terminal regeneration zone located at the front end of the desulfurized rich liquid flow direction is provided with a liquid inlet pipe, and the outlet end of the liquid inlet pipe is located close to the aeration device; partitions are provided between adjacent sub-regeneration zones, and between the terminal sub-regeneration zone and the sedimentation zone located at the end of the desulfurized rich liquid flow direction, the lower part of the partition is connected to the tank body and extends upward in the vertical direction, and the upper part of the partition is folded back in the direction of the previous sub-regeneration zone of each sub-regeneration zone. The present application can realize multi-stage regeneration of desulfurized rich liquid in stages, with good regeneration effect, low operating cost, obvious sedimentation effect, and solve the problem of sulfur particles carried by desulfurized lean liquid.

The invention relates to the technical field of environmental pollution treatment, in particular to a deep denitrification method for secondary effluent of a sewage plant. Comprising the following steps: S1, volcanic rock and sulfur particles are taken as filler for attachment of a biological membrane, a biological filter column is started, and functional microorganisms in the biological membrane after successful starting comprise Thiobacillus and Candidate Kuenia; s2, the effluent of the primary sedimentation tank and the secondary effluent are mixed according to the volume ratio of (4.5-y) / (x-4. 5)-(5.5-y) / (x-5. 5) to obtain a mixed solution, x and y are the ammonia nitrogen concentration of the effluent of the primary sedimentation tank and the ammonia nitrogen concentration of the secondary effluent respectively, and the unit is mg / L; s3, carrying out denitrification treatment by taking the mixed solution as to-be-treated inlet water, and monitoring the quality of treated outlet water; and S4, judging whether to adjust the treatment process or not according to the nitrogen content in the effluent. According to the method, deep denitrification of the secondary effluent of the sewage plant can be realized, and the treatment cost is low.

The invention provides a desulfurization solution for ZERO-CAT stable desulfurization and a control method, and relates to the technical field of wet desulfurization. The ZERO-CAT stable desulfurization solution comprises an absorbent, a catalyst, a biological inhibitor and a surfactant, the catalyst comprises a chelating agent, and the chelating agent comprises nitrilotriacetic acid sodium salt, sodium hydroxide and water. The chelating agent comprises nitrilotriacetic acid sodium salt, has good biodegradability and is an environment-friendly chelating agent, and the biological inhibitor is added, so that the biological activity can be reduced, the activity of bacteria introduced into the air is further reduced, and the situation that the chelating agent is lost due to the fact that the bacteria act on the chelating agent is avoided; by adding the surfactant, sulfur particles generated in the desulfurization process can be wetted, so that the sulfur particles aggregate and sink to the bottom of the system, and the situation that the system is blocked and cannot operate normally due to the fact that sulfur in the system cannot be discharged is avoided.

A sewage treatment method and device for removing nitrates from water by strengthening sulfur autotrophy, the sewage treatment method is to set a sulfur autotrophic denitrification functional area and a sulfur autotrophic byproduct denitrification functional area, the sulfur autotrophic denitrifying bacteria in the sulfur autotrophic denitrification functional area use sulfur as an electron donor, circulate the sewage in the sulfur autotrophic denitrification functional area, and the circulated sewage is passed from the sulfur autotrophic denitrification functional area to the sulfur autotrophic byproduct denitrification functional area. The sewage treatment device includes an upper cylinder and a lower cylinder; a sulfur autotrophic byproduct denitrification functional area is formed in the upper cylinder, and a sulfur autotrophic denitrification functional area is formed in the lower cylinder, and the sulfur autotrophic denitrification functional area and the sulfur autotrophic byproduct denitrification functional area are both filled with anaerobic sludge and fillers, and the sulfur autotrophic denitrification functional area is also filled with sulfur particles as electron donors. The present invention can improve the electron utilization rate in sulfur autotrophic denitrification, reduce the content of sulfide and sulfate in effluent, and balance the pH value of effluent.

This invention discloses a method for treating sulfur tail gas, comprising: cooling the sulfur tail gas to separate sulfur from the tail gas; and using a treatment liquid containing sulfur-autotrophic denitrifying microorganisms to convert the sulfur into sulfate ions. This invention also discloses a sulfur tail gas treatment system, comprising a biochemical reaction tank and a treatment liquid tank. The biochemical reaction tank is equipped with a spray system and contains biological packing material. The spray system is connected to the treatment liquid tank, and the packing material is covered with sulfur-autotrophic denitrifying microorganisms. The sulfur tail gas treatment system provided by this invention, based on the traditional water washing method, adds microbial treatment to oxidize the sulfur retained by water washing into sulfate ions, which are then dissolved in water and discharged. This not only meets relevant tail gas emission standards but also prevents sulfur particles from adhering to the inner wall of the treatment system and the pipes, thus avoiding pipe blockage.

This invention proposes a sulfur purification method combining continuous flow solid-liquid separation and low-temperature sublimation, comprising: S1, physically crushing sulfur raw materials into sulfur particles, placing the sulfur particles in a cleaning solution for ultrasonic cleaning to obtain cleaned sulfur particles; wherein, the cleaning solution is an aqueous solution including at least one cleaning agent selected from sodium carbonate, EDTA, citric acid, phosphate, and silicate; S2, continuously countercurrently immersing the cleaned sulfur particles with an immersion solution, followed by solid-liquid separation to obtain solid sulfur after solid-liquid separation; S3, sublimating the solid sulfur after solid-liquid separation into sulfur vapor at a temperature of 80–110°C and a vacuum of 0.01–10 Pa; S4, condensing the sulfur vapor to obtain solid sulfur. This sulfur purification method effectively reduces energy consumption during the purification process, reduces environmental pollution, and significantly improves the purity of sulfur products, greatly enhancing the energy utilization rate and environmental performance of the entire production process.

A header design for an efficient single pass enlargement process of sulfur granules having two internal piping structures within an external header conduit for delivering separate molten sulfur liquid streams to different sets of nozzles, wherein a first set of nozzles is subjected to flow streams and pressures uniquely different from a second set of nozzles. A water header design may also include two internal piping structures inside an external pipe casing for delivering water in at least two sets of nozzles, wherein the first set is subjected to flow streams and pressures different from the second set. A method of sulfur seed generation and sulfur granule enlargement for processing sulfur, employing a unique sulfur header design with dual internal piping structures, and possibly utilizing in tandem a water header design having a dual internal piping structure for feeding two sets of nozzles.

The utility model relates to the technical field of sulfur granulation, and discloses a sulfur granulation forming device which is characterized in that rotating shafts on the two sides are connected to the two sides of an inner cavity of a box body, the transmission end of a motor is connected with the rotating shaft on the right side, a conveying belt is arranged on the outer walls of the rotating shafts on the two sides, through holes are uniformly formed in the surface of the conveying belt, and the through holes are formed in the outer wall of the conveying belt. The sulfur granulating and forming device comprises a box body, the top of the box body is provided with a cooling liquid box, the bottom of the cooling liquid box is connected with a water conveying pipe, and the bottom end of the water conveying pipe is connected with a spray head, according to the sulfur granulating and forming device, sulfur particles fall on the surface of a conveying belt by starting a granulator, and cooling liquid in the cooling liquid box enters the spray head through the water conveying pipe; the spray head is used for uniformly spraying to cool and shape just produced sulfur particles, the motor is started to enable the conveying belt to work, and the sulfur particles at the top of the conveying belt pass through the separation plate and are scraped off from the top of the conveying belt, so that the formed sulfur particles are obtained.

The invention discloses a sulfur purification method, which comprises the following steps: carrying out centrifugation, drying dehydration and crushing on sulfur slurry to form solid sulfur particles, dissolving the sulfur particles in an extraction agent for high-temperature extraction, carrying out centrifugation and cooling crystallization after extraction to obtain purified sulfur, and recycling the extraction agent in a high-temperature vacuum distillation manner. The technology for purifying the sulfur through the extraction method is high in sulfur recovery rate, easy to operate, low in cost and free of secondary pollution hidden danger, and has feasibility in the environment and economic dual technology. According to the method disclosed by the invention, the purity and the recovery rate of the sulfur are further improved by selecting a proper extracting agent, a proper sulfur particle size, a proper material adding ratio, a proper reaction temperature and a proper reaction time, the extraction efficiency after the PCE is recycled for 8 times can still reach 90% or above, the recovery rate of the sulfur is 92.6%, and the purity of the sulfur is 95.8%.

The utility model belongs to the technical field of sulfur granules, and particularly discloses a drying device for sulfur granulation, which comprises a drying box, an obliquely arranged material carrying plate is connected in the drying box, the material carrying plate is connected with a vibration motor, two ends of the material carrying plate extend out of the drying box, and a plurality of material guide raised lines are connected onto the material carrying plate. A hot air mechanism is fixedly connected below the material carrying plate in the drying box, a plurality of ventilation through holes are formed in the position, above the hot air mechanism, of the material carrying plate, and a dust collection mechanism is fixedly connected to the top of the drying box. According to the sulfur particle drying device, the material carrying plate provided with the vibration motor is obliquely arranged in the drying box, the ventilation through holes are formed in the material carrying plate, and the hot air mechanism is arranged below the ventilation through holes, so that sulfur particles on the material carrying plate are subjected to hot air drying; and the continuously vibrating material carrying plate shakes and disperses the sulfur particles on the material carrying plate, so that bridging crystallization among the sulfur particles is avoided, and the caking phenomenon of the sulfur particles during drying is prevented.

The invention relates to the field of separation, in particular to a complex iron desulfurization system and process regulated and controlled by a buffer tank, the system comprises at least one regeneration tank, at least one settling tank and the buffer tank which are connected in sequence, the buffer tank and all the settling tanks are connected with at least one filter press, and the buffer tank and all the filter presses are connected with a filtrate tank; the buffer tank comprises a cavity, and the cavity comprises a first cavity and a second cavity which are communicated through a pipeline; the first cavity is internally provided with a wall scraping assembly used for cleaning sulfur scale on the inner wall of the cavity and a sedimentation promoting assembly capable of dispersing large-cluster suspended colloids to promote sedimentation of sulfur particles along with cleaning of the inner wall of the cavity by the wall scraping assembly; the process applies the system. The existing complex iron desulfurization system has the problems of low desulfurization efficiency and poor operation stability. The system and the process provided by the invention have the advantages of high desulfurization efficiency and good operation stability.

The invention relates to a tail gas recovery process for producing insoluble sulfur by a high-temperature liquid sulfur atomization direct method, which comprises the following steps: S1, carrying out quenching granulation on high-temperature tail gas through a quenching tower, atomizing liquid sulfur into liquid drops with the particle size of 50-200mu m by using an atomizing nozzle, directly contacting the liquid sulfur with the high-temperature tail gas, and quickly condensing into spherical sulfur particles, and controlling the cooling rate to be 103-104 DEG C / s through low-temperature circulating oil or liquid carbon dioxide, inhibiting particle aggregation, and obtaining the monodisperse sulfur microspheres. Modified white oil or dimethyl silicone oil is adopted as an absorbent, and spraying of an alkaline solution is combined, so that deep purification of harmful substances such as sulfur steam, sulfur dioxide and hydrogen sulfide is realized, and the monodisperse sulfur microspheres are obtained. The tail gas recovery rate reaches up to 95% or above, meanwhile, the recovered sulfur particles and byproducts can be recycled, the resource utilization rate is increased, particle size regulation and morphology optimization of the sulfur particles are synchronously achieved in the tail gas recovery process, and spherical or regular-shaped sulfur particles meeting the high-end market requirement can be produced.

The invention relates to the technical field of sulfuric acid production equipment, and discloses a sulfuric acid production waste heat efficient recovery and reutilization process which comprises an equipment base, supporting seat plates are fixedly installed on the left side and the right side of the upper end face of the equipment base, and a U-shaped seat is rotationally installed between the supporting seat plates on the left side and the right side; a rotating mechanism is arranged on the side wall of the supporting seat plate located on the left side, a preheating barrel is fixedly mounted on the bottom face of an inner cavity of the U-shaped seat, a mounting frame is fixedly mounted on the upper end face of the preheating barrel, an air inlet mechanism is arranged on the front portion of the outer side wall of the preheating barrel, and a mixing mechanism is arranged in the middle of the upper end face of the mounting frame; purifying mechanisms are arranged on the left and right sides of the upper end surface of the mounting frame. Through cooperation of the mixing mechanism, the purifying mechanism and the like, sulfur particles in the preheating cylinder are preheated, the subsequent roasting efficiency of sulfur in the heating furnace is improved, and meanwhile, the purifying mechanism is arranged, so that harmful substances in waste gas can be effectively absorbed.

The invention discloses an oil and gas field sewage desulfurization method, and relates to the field of oil and gas field sulfur-containing sewage treatment. Comprising the following steps: adjusting the pH value of the sulfur-containing sewage to 8.0-9.0, and adding a sulfur particle regulating agent; adding a composite complex iron catalyst into the treated sewage, and carrying out catalytic oxidation reaction under the condition that the concentration of dissolved oxygen is controlled to be 2-8mg / L; adding an air flotation separating agent to separate the generated sulfur particles from the water phase to obtain sulfur-enriched foam and desulfurization sewage; a redox regulator is added into the separated desulfurization sewage, and the activity of the catalyst is recovered by controlling the redox potential within the range of 150-250 mV; and a flocculating agent and a pH regulator are added, so that the treated water quality reaches the discharge standard. According to the method, sulfide in the high-concentration sulfur-containing sewage can be stably reduced to 0.5 mg / L or below, the desulfurization efficiency far exceeds 99.9%, the purity of a sulfur product is larger than or equal to 99.5%, the treatment effect is stable and reliable, and the sulfur recovery rate is larger than or equal to 93.2%.

The utility model discloses a sulphur particle screening device, which relates to the technical field of sulphur particle production, and comprises a discharge box, a screening cylinder is rotatably arranged in the screening box, the screening cylinder is in close contact with the inner wall of the screening box, a plurality of screening holes are arranged on the screening cylinder, a plurality of stirring plates are further fixedly arranged on the outer wall of the screening cylinder, and the stirring plates are fixedly arranged on the outer wall of the screening cylinder. The screening device comprises a screening cylinder and a discharging box, a stirring plate is arranged on the screening cylinder, flow guide blocks are further fixedly installed in the discharging box, the flow guide blocks are symmetrically arranged in the screening box, the flow guide blocks make contact with the stirring plate on the screening cylinder, the flow guide blocks are used for limiting flowing of materials, and an inner filtering cylinder is further installed in the screening cylinder in a sliding mode. The screening barrel can continuously screen sulfur particles, meanwhile, a stirring plate can be matched with a flow guide block to reduce the size of the sulfur particles through extrusion, so that the screening and simple treatment process is achieved, the working efficiency of the device is improved, and the screening success rate of the device can be increased.

The utility model relates to the technical field of sulfur recovery and flue gas purification, in particular to a sulfur recovery device for treating low-concentration acid gas. Comprising an absorption regeneration unit, a sulfur filtering unit and an absorption liquid adding unit, the absorption regeneration unit is communicated with the sulfur filtering unit, the absorption liquid adding unit is communicated with the absorption regeneration unit, the absorption regeneration unit comprises a tank body, the lower portion of the tank body is conical, an inner cylinder with an upper opening and a lower opening is fixed in the tank body, and a filter screen is fixed at the lower end of the inner cylinder. An inner gas distributor is arranged in the inner cylinder, an outer gas distributor is arranged between the inner cylinder and the tank body, the inner gas distributor is communicated with the inlet pipe, and the outer gas distributor is communicated with a first air compressor; an inner ring is fixed on the outer side of the inner cylinder below the outer gas distributor; and an outer ring is fixed on the inner wall of the tank body below the inner ring. When air is introduced into the absorption liquid through the upper ring pipe, the impact force on the absorption liquid at the lower part of the tank body can be reduced, and sulfur particles can be effectively precipitated in the conical part of the tank body.

The utility model belongs to sewage treatment device, especially point to a kind of sulphur autotrophy artificial wetland-microbial fuel cell coupling system. Wherein water inlet tank is connected with sewage collection end, artificial wetland includes the support layer, mixed filler layer, middle layer, anode layer, isolation layer, cathode layer and plant layer distributed from bottom to top;Support layer as the material input end of artificial wetland and the pumping output end of water inlet tank are communicated, the material output end of artificial wetland is discharged through the water outlet of its side part, and anode layer and cathode layer respectively correspond to accommodate the anode and cathode of microbial fuel cell;The material output end of artificial wetland is located in the lower part of isolation layer and is communicated with outside through siphon pipe;The filler in mixed filler layer adopts uniform mixed sulphur granule and siderite.The utility model effectively solves the treatment problem of low C / N ratio wastewater in prior art, has the advantages such as good denitrification and phosphorus removal effect, no secondary pollution, optimal dissolved oxygen distribution, promote the deep removal of pollutants and the like.

The utility model discloses sulfur product transfer equipment, and relates to the technical field of sulfur product processing, the sulfur product transfer equipment is applied to transportation of sulfur particles in a production workshop, the sulfur product transfer equipment comprises a conveying track, a transfer trolley, a storage box body, a feeding assembly and a discharging pipe fitting, the conveying track is arranged on the ground of the production workshop; the transfer trolley is arranged on the conveying track and runs along the conveying track; the storage box body is fixedly mounted on the transfer trolley; the feeding assembly used for being connected with a discharging pipe of sulfur particle processing equipment is installed at the position, close to one side, of the upper end face of the storage box. The discharging pipe fitting is installed on the side end face, away from the feeding assembly, of the storage box. According to the technical key points, safe storage and conveying of sulfur particles can be achieved, the safety of sulfur product processing is guaranteed, pipeline connection is convenient during feeding and discharging, and the sulfur particle conveying device can be suitable for processing equipment with different heights and different inclination angles, is high in applicability and good in using effect and has a good using prospect.

This invention relates to the field of sulfur powder technology, specifically to a process optimization method for reducing sulfur powder byproducts in underwater wet sulfur forming. The method includes the following steps: Step 1: Forming nozzle and flow channel optimization (source-level crushing control), S1.1 Nozzle structure optimization: Replacing the traditional straight-cylinder nozzle with a "gradual expansion-contraction" biomimetic flow channel nozzle. The flow channel consists of an inlet section (inner diameter 8mm), a gradually expanding section (cone angle 5°, length 20mm), and a contraction section (…). With an 8° cone angle and a 30mm length, and an outlet section (6mm inner diameter), this invention reduces turbulent breakage during molten sulfur injection. Through nozzle flow channel optimization and cooling flow field control, the yield of ≤0.5mm sulfur powder is reduced from ≥8% to ≤1.5%, the proportion of irregular small particles is reduced from ≥15% to ≤3%, and the total sulfur powder yield is reduced from ≥10% to ≤4%. This reduces sulfur powder generation at its source, and the uniformity of the formed sulfur particles is ≥98%, with no adhesion or breakage, increasing the added value of the product by more than 10%.

The invention relates to the related technical field of sulfur powder production, and discloses energy-saving grinding equipment for sulfur powder production and processing, which comprises an equipment body, a fixing plate is arranged in the middle of the interior of the equipment body, a conical barrel is rotatably arranged on the upper side of the fixing plate, and a plurality of L-shaped plates are arranged on the inner wall of the lower part of the conical barrel in a circumferential array manner; a plurality of filter holes are formed in the inner wall of the middle of the conical barrel, a guide ring is arranged on the inner wall of the upper portion of the conical barrel, and a grinding assembly is arranged on the upper side of the interior of the equipment body; sulfur particles can be ground into powder through revolution of the multiple grinding wheels in cooperation with the conical inner wall of the conical barrel; the grinding wheels are in rotary contact with the movable frame, so that the sulfur particles are ground in a rolling manner through rotation and revolution cooperation of the multiple grinding wheels, and the grinding effect on the sulfur particles is improved; and the forward rotation of the grinding wheels is matched with the reverse rotation of the conical barrel, so that the grinding effect on the sulfur particles is further improved.

The utility model discloses circulating heating equipment for sulfur product processing, which relates to the technical field of sulfur product processing and comprises a heater, a heating cylinder is placed in the heater, and the circulating heating equipment for sulfur product processing is provided with a stirring plate, a rotating pipe and a transmission rod. The output end of the servo motor drives a second transmission gear to rotate, so that the second transmission gear drives a stirring plate to rotate in the circumferential direction through a driving column, and meanwhile, the driving column rotates to drive a first transmission gear to move circumferentially along the interior of a gear ring, so that a transmission rod drives a worm gear through a worm part to drive a rotating pipe to rotate; when the driving column rotates, the driving column drives the scraping plate to move circumferentially along the inner cavity of the heating cylinder through the scraping column, so that sulfur particles on the inner wall of the heating cylinder are scraped off, and meanwhile, sulfur particles on the inner wall and the bottom of the heating cylinder can be scraped off; therefore, the sulfur particles in the inner cavity of the heating cylinder are uniformly heated.

This invention belongs to the field of sulfur foam separation technology, specifically relating to a method for the synergistic concentration of sulfur foam through gradient centrifugation and microwave drying. The method utilizes a selected foam modifier to modify the sulfur foam, effectively reducing the number of bubbles and the viscosity of the liquid. It also effectively breaks down the colloidal system formed by bubbles and sulfur particles in the sulfur foam, promoting water separation and further enhancing the dehydration effect. This allows the treated sulfur foam to be dehydrated and dried using only conventional physical dehydration methods, achieving the desired dehydration and drying of high-moisture-content sulfur foam.

The invention discloses a preparation process for producing insoluble sulfur by a high-temperature liquid sulfur atomization direct method. The preparation process comprises the following steps: step 1, putting industrial sulfur into a heating container driving a stirring mechanism for heating and melting; 2, mixing diphenyl disulfide, mercaptoethanol and a sulfur solution; 3, atomizing the mixture by using an ultrasonic atomizer and carrying out a polymerization reaction, 4, introducing the polymerized material into a cooling tower, and rapidly cooling the liquid by using a supercritical carbon dioxide and liquid nitrogen mixture, and 5, putting the rapidly cooled particles into a supercritical carbon dioxide extraction kettle, and 6, carrying out in-situ coating by using a supercritical carbon dioxide solution of fluorosilane. Supercritical carbon dioxide is used for rapid cooling, the specific surface area is large, the supercritical carbon dioxide is in full contact with the supercritical carbon dioxide, the supercritical carbon dioxide rapidly permeates into sulfur particles through the strong solubility and diffusivity of the supercritical carbon dioxide, and uniform cooling is achieved.

The application discloses a high-elastic modifier for regenerating asphalt mortar, which comprises the following components in parts by weight: modified waste EPDM plastic track granules 20-30 parts, modified crosslinking agent 10-15 parts, penetrating agent 5-10 parts, plasticizer 3-10 parts, solubilizer 20-40 parts, sulfur granules 5-10 parts and surfactant 5-10 parts. The waste EPDM plastic track granules and the crosslinking agent are modified respectively, the modified EPDM can further react with anhydride groups of LDPE to form an imide structure, a chemical bond is established between the EPDM and the LDPE, the interface bonding force is significantly enhanced, a crosslinking network is generated, and the elasticity and fatigue performance of the regenerated asphalt mortar are improved.

The utility model provides a dewatering screen for sulfur. The dewatering screen for sulfur comprises a screen plate, an air blowing assembly and a base. The sieve plate is movably connected to the base; a driving assembly is arranged on the base, and the driving assembly is connected with the sieve plate; the air blowing assembly is arranged above the sieve plate, and the air blowing assembly is used for blowing air to the spherical sulfur particles in the process that the spherical sulfur particles are dehydrated by the sieve plate. According to the dewatering screen for the sulfur, the blowing assembly is arranged on the screen plate, in the dewatering process, spherical sulfur particles are blown through the blowing assembly, moisture attached to the surfaces of the sulfur particles is taken away through blowing, and the dewatering effect on the spherical sulfur particles is improved.