36results about How to "Strong impact load capacity" patented technology

The invention discloses a device for strengthening anaerobic ammonia oxidation and nitrogen removal process. The device comprises a raw-water storage tank, a feed pump, a biochemical reactor and a continuous flow reactor of a sediment tank; the continuous flow reactor is connected with a PLC (programmable logic controller); the biochemical reactor contains an anaerobic zone, an aerobic zone and an anoxic zone; the urban raw-material storage tank is communicated with a water inlet pipe of the biochemical reactor through the feed pump, and sewage is sequentially connected with the anaerobic zone, the aerobic zone, the anoxic zone and the sediment tank through the water inlet pipe; the sediment tank is subjected to sludge and water separation, and a supernatant is discharged as yielding water; in the anaerobic zone, activated sludge absorbs an organic matter synthesized internal carbon source degraded into the water; in the aerobic zone, coupling of short-cut nitrogen removal and anaerobic ammonium oxidation is realized by controlling dissolved oxygen, and nitrogen removal rate of the system is increased.

The invention discloses a method for treating sewage of scattered village peasant households by aquatic animal and plant purification pond, and belongs to the technical field of environment protection. The method mainly aims at the difficult problem of water pollution caused by sewage discharge from scattered village peasant households in south rural areas of China, based on surrounding topographic conditions of villages, creeks or ponds, to which sewage of scattered peasant households is discharged, are used as treatment carriers, and by planting aquatic plants, adding benthonic animals and arranging artificial seaweeds, a purification pond based on aquatic animals and plants and artificial seaweeds is built. The treatment method can realize in-situ sewage purification without building sewage collection pipe networks and sewage treatment facilities, not only has good treatment effect and low cost of construction, but also spends no operating cost, occupies no cultivated land, is convenient to maintain and has remarkable benefit of ecological environment.

The invention provides a coal mine domestic wastewater treatment device and a treatment method. The coal mine domestic wastewater treatment device comprises a grille well, an adjustment tank, a pre-sedimentation tank, and a simultaneous biological oxidation tank (SBOT), wherein the grille well, the adjustment tank, the pre-sedimentation tank, and the SBOT are orderly communicated along a coal mine domestic wastewater flow direction. The SBOT is separated into N little tanks along a direction perpendicular to the bottom of the SBOT. Each one of the N little tanks is provided with an upper flowchannel, carriers intercepted by an upper carrier interception grille and a lower carrier interception grille and a lower flow channel close to the bottom of the SBOT, wherein an aerated pipe is arranged between the lower carrier interception grille and the lower flow channel and a dredge pipe is arranged at the bottom of the SBOT and is communicated with the outside environment. The coal mine domestic wastewater treatment device and the treatment method can effectively reduce the content of organic matters in coal mine domestic wastewater, the content of ammonia nitrogen in coal mine domestic wastewater and the content of total nitrogen in coal mine domestic wastewater, avoid the use of a secondary sedimentation tank and an activated sludge backflow system, greatly simplify coal mine domestic wastewater treatment processes, and reduce coal mine domestic wastewater treatment device costs.

The invention discloses an anti-explosion transparent partition mounting structure. The anti-explosion transparent partition mounting structure comprises a partition body fixed on a building body, a circle of mounting frame is bonded around the partition body which is fixed on the main building body or an adjacent partition body via the mounting frame, the mounting frame comprises a pressing assembly and a fastening assembly, and the pressing assembly is matched with the fastening assembly to press the same to generate prestressing force so as to fasten the partition body. By the aid of the mounting frame, the partition body cannot be separated after being impacted by explosion and the like, so that anti-explosion and separation functions are effectively realized, and indoor persons are protected to the greatest extent. Since a rigid bearing frame is firmly connected with the main building body structure, strength and rigidity of a whole partition bearing system are greatly improved, and the anti-explosion transparent partition structure is stronger in capability for bearing impact loads from explosion and the like and better in safety performance.

The invention relates to a flue gas desulfurization system for a zinc smelting process. The system comprises a zinc oxide ore pulp manufacturing part, a primary desulfurization part, a secondary desulfurization part and a tertiary desulfurization part. The zinc oxide ore pulp manufacturing part: zinc scum after casting is subjected to ball milling, the metal zinc in the zinc scum is separated, thezinc scum is subjected to a fluorine and chlorine removal process until the fluorine content is not more than 0.1% and the chlorine content is not more than 0.3% in the zinc scum, slurrying is performed in a slurry tank, and then zinc oxide is further refined through a vertical grinding process to form a zinc oxide ore pulp. The primary desulfurization part: the prepared zinc oxide ore pulp is sprayed into a primary absorption tower and reacts with sulfur dioxide in the washed flue gas of the zinc smelting system, the formed zinc sulfite pulp liquid after reaction is concentrated, the supernatant is discharged into an aerated oxidation tank, the bottom flow is subjected to filtration and the filtrate is discharged into the aerated oxidation tank, the solution after oxidation by the aerated oxidation tank is returned to the slurry tank of the zinc oxide ore pulp manufacturing part for cyclic utilization, when the concentration of zinc ion in the solution reaches to be 150 g/L, the solution is fed to a zinc purification system for further treatment, and the filter residue is sent to a zinc sulfite material bin and is subjected to the comprehensive recovery of zinc after the collocation treatment with other zinc-containing materials. The process does not produce harmful waste gas, waste residue and waste water.

The invention relates to a flue gas desulfurization process used for a zinc smelting system. The process comprises the following steps: preparing ZnO slurry: after zinc scum is casted, performing ballmilling, separating metal zinc, performing defluorination and dechlorination on the scum powder until the fluorine content is not more than 0.1% and the chlorine content is not more than 0.3% in thezinc scum, performing slurrying in a slurrying tank, allowing the obtained slurry to enter a vertical mill process, and further grinding the zinc oxide to form ZnO slurry; performing first-stage desulfurization: spraying a prepared ZnO slurry into a first-stage absorption tower, and reacting the ZnO slurry with sulfur dioxide in washed zinc smelting system flue gas; performing second-stage desulfurization, and performing third-stage desulfurization. The process is characterized in that zinc sulfite slurry formed after the reaction is concentrated, the supernatant is discharged into an aerationoxidation tank, after the bottom stream is filtered, the filtrate is discharged into the aeration oxidation tank, the solution obtained by oxidation in the aeration oxidation tank returns to the slurrying tank in the ZnO slurry preparation part for recycling, after a zinc ion concentration in the solution reaches 150 g/L, the material is sent to a zinc purification system for further treatment without deposition, and the filter residues are sent to a zinc sulfite bin to be treated together with other zinc-containing materials for comprehensive recovery of zinc. The process provided by the invention has no harmful waste gas, waste residues or waste water.

The invention relates to a continuous filtering device adopting an up-flow type flowing bed and a filtering method. In a conventional three-phase treatment process, for a coagulating basin and a sedimentation basin in conventional two-stage biochemical treatment, deep treatment is performed on effluent of the secondary sedimentation basin after active sand is indirectly arranged behind a secondarysedimentation basin, and then process facilities such as the coagulating basin and the sedimentation basin need to be specifically arranged. Coagulant cannot be directly fed in a water inlet pipelineor channel, active sand process work amount and investment are relatively high, and operation and maintenance cost are high. The continuous filtering device adopting an up-flow type flowing bed comprises a shell, wherein the shell is connected with a raw water inlet (2), a sand washing sewage outlet (3) and a pure water outlet (9) respectively, dirty sand (11), a sand bed (5) and a sand pouring hopper (7) are arranged in the shell, and the sand pouring hopper is formed by welding a sector structural member and a conical structural member. The device and the method are applied to the field ofdrinking water, industrial water, advanced sewage treatment and reclaimed water reuse treatment.

The invention discloses a continuous up-flow type active sand filter treatment device and filter method. A coagulation pond and a sedimentation pond in a traditional three-section type treatment process are used in a conventional secondary biochemical treatment, active sand is arranged indirectly behind a secondary sedimentation pond and is used for deep treatment of effluent of the secondary sedimentation pond, and the coagulation pond, a clarifying pond and other process facilities require to be arranged dedicatedly; a coagulant cannot be directly added in a water inlet pipeline or channel, the active sand technology project amount and investment are relatively high, and operation and maintenance costs are high. The continuous up-flow type active sand filter treatment device comprises a housing (1); the housing is respectively connected with a raw water inlet (2), a sand washing sewage outlet (3) and a purified water outlet (9); the housing is internally provided with dirty sand (11), a sand bed (5) and a sand pouring hopper (7); and the sand pouring hopper is welded by a fan-shaped structural member and a tapered structural member. The continuous up-flow type active sand filter treatment device and filter method are applied to the fields of deep treatment of drinking water, industrial water and sewage, and reclaimed water reuse treatment.

The sewage flow with three different biological unit successively which are anaerobic unit, anoxic unit and aerobic unit. The time which sewage stay the unit are 2.5-3.9h, 2.5-3.5h and 6.0-7.5h respectively. He sludge age is 15-20 days, the mixture fluid returning ratio is 100%-20%. The sludge returning ratio is 100%. To determine the toxin of import and export waster water in the method of determination of acute aoxicity. So the toxin reduction ratio reach to 82% compared to the method of slued treatment, it is improved 20%-50%. The technology can also remove the N and P, the removal rate of N is 90.05%, the BOD is 81.25% and the SS is 77.17%. The effluent quality can meet all the routine standard and decrease the loading rate in the following treatment. The decreasing rate of toxin is used to access a biological treatment firstly in invention and the invention also provide a economical and efficiently method to resource the city wastewater.