7 results about "Sulphur granules" patented technology

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.

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 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 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 invention discloses a sewage denitrification method using sulfur-activated carbon composite filler to reinforce microbial electron transfer, which comprises the following steps: mixing raw materials including sulfur particles, activated carbon powder and a pore-forming agent, and granulating to prepare porous sulfur-activated carbon composite filler; the reactor is filled with porous sulfur-activated carbon composite filler, and sewage denitrification is carried out; wherein the sulfur disproportionating bacteria disproportionate elemental sulfur, generate sulfide and polysulfide and release electrons to the activated carbon, the electrons are conducted through the conductive network and are obtained by the sulfur oxidation denitrifying bacteria, NO3 <-> is reduced into N2, and sewage denitrification is achieved. According to the sulfur-activated carbon composite filler disclosed by the invention, the electron transfer time is shortened, efficient synergy of sulfur disproportionation flora and denitrifying flora is realized, and the reaction rate is increased, so that nitrogen removal is accelerated.