39results about How to "Solve the fouling problem" patented technology

The invention relates to a horizontal water flow vertical mud discharging sedimentation and separation device, which is characterized by comprising a plurality of corrugated boards mounted in a sedimentation tank; all the corrugated boards are vertically arranged relative to the horizontal plane; adjacent corrugated boards are symmetrically arranged and spaced; the minimum distances between the adjacent corrugated boards are mud discharging channels. Compared with the prior art, the horizontal water flow vertical mud discharging sedimentation and separation device reserves the advantage that a water flow is vertical to the mud discharging direction of sediment and does not interfere in the sediment, avoids the disturbance of a horizontal water flow to the sediment, prevents sinking mud from suspending, meanwhile, optimizes a mud discharging manner and adopts the vertical mud discharging channels; after a water flow horizontally flows through the water flowing channels, suspended matters bump into the side frames of the water flowing channels, quickly deposit, and slide downwards along the side frames to the mud discharging channels, and directly deposit at the bottom of the sedimentation tank; an oblique board bears nothing, so that the load bearing problem of the oblique board, caused by overweight sediment, is solved.

The invention relates to a novel sewage treatment device. The novel sewage treatment device comprises a reaction tank, wherein the reaction tank is separated into an aerobic zone, an anaerobic oxygen-poor zone and an anaerobic zone; the side wall is provided with a water inlet hole and a mud scraper is arranged at the bottom; a mud bucket is arranged below the reaction tank; the mud bucket is internally provided with a pushing device; a separation plate is provided with an aeration device and is accumulated with an AO reactor; a water passing hole and a water passing weir are arranged on the upper part of the reaction tank; a sludge reflowing hole and a liquid supernatant reflowing hole which is connected with a liquid supernatant pumping-out hole of a sedimentation basin are formed in the side wall of the reaction tank; the sedimentation basin and the reaction tank share one side wall; the sludge reflowing hole on the lower part of the sedimentation basin is communicated with the bottom of the sedimentation basin; the sedimentation basin is internally provided with a horizontal flow sediment separation device; a clean water outlet hole is formed in the side wall of the sludge sedimentation basin; the clean water outlet hole is formed above the horizontal flow sediment separation device; a water outlet weir is arranged on the outer side wall of the sedimentation basin. According to the novel sewage treatment device, the plane occupied area is greatly reduced; organic carbon in raw water can be sufficiently utilized to be used as a carbon source needed by a denitrification process of the oxygen-poor zone can be sufficiently utilized so that the adding amount of the additionally-arranged carbon source is reduced and the whole performance of a sewage treatment system is strengthened.

The invention relates to a horizontal flow vertical sludge discharge and sedimentation separation device, which is characterized in that it includes a plurality of corrugated plates installed in the sedimentation tank, each of the corrugated plates is vertically arranged relative to the horizontal plane, and adjacent corrugated plates are arranged symmetrically and mutually There is a distance between them, and the minimum distance between adjacent corrugated plates is the mud discharge channel. Compared with the prior art, the present invention retains the advantages that the water flow and sediment discharge direction are perpendicular to each other and does not interfere with each other, avoids the disturbance between the horizontal flow and the sediment, prevents the sinking sludge from resuspension, and simultaneously The sludge discharge method is optimized, and a vertical sludge discharge slide is adopted. When the water flows horizontally through the water flow channel, the suspended matter collides with the frame of the water flow channel and settles quickly, slides along the frame into the sludge discharge channel, and directly settles to the sedimentation tank At the bottom, the sloping plate does not need to bear weight, thus solving the load-bearing problem caused by the excessive amount of sediment on the sloping plate.

The invention relates to a farmland machinery carrying platform. Under the instructions of a PC, a PLC, an execution circuit and a variety of kinds of sensors can form a complete intelligent automated program, and under the support of the intelligent automated program, the farmland machinery carrying platform is composed of two rate adjustment motors which are matched with each other, a left truck body and a right truck body which are symmetrical to each other, driving wheels, driven wheels, two hydraulic lifting frames and a carrying platform. The farmland machinery carrying platform is characterized in that the left truck body and the right truck body are respectively provided with a main motor which is connected with a corresponding wheel support and a corresponding driving wheel through a commutator; one end of the lower surface of the left truck body and one end of the lower surface of the right truck body are respectively connected with one driven wheel; the left truck body and the right truck body are provided with the two sets of hydraulic lifting frames; the lower ends of the lifting frames are connected with the truck bodies; the upper ends of the lifting frames are connected with the carrying platform; and therefore, a complete lifting carrying platform can be formed, and can walk on a special rail in a farmland and can finish all management work in the farmland from such as land cultivation, sowing and harvesting. With the farmland machinery carrying platform of the invention adopted, no workers are needed to drive and operate the farmland machinery carrying platform, and people can realize fully automatic control through utilizing the Internet based on computers.

The invention discloses an over-frequency vibrating separator and a separating system. The over-frequency vibrating separator comprises a casing, a membrane set and a motor. A central driving rod is extended from the membrane set and is equipped with an eccentric block and first flange at a lower end thereof; an output terminal of the motor is provided with a second flange which is flexibly connected with the first flange through a belt. Thereby, the motor drives the eccentric block on the central driving rod to conduct eccentric exercise in order to initiate swing, and energy generated from swing promotes vibration of the membrane set through the central driving rod; when a rotating speed of the motor reaches a frequency required by a resonance environment, the vibrating amplitude of themembrane set reaches the maximum, and the shearing force generated by the membrane set transmits in a sine mode through diaphragm surfaces in the membrane set, so as to effectively solve a problem ofdiaphragm stagnation in the membrane set. The over-frequency vibrating separator, a charge pump, a charging cylinder and a filtering hydraulic cylinder form a separating system in order to separate afiltrate continuously and effectively and realize a higher sewage recovery utilization rate; meanwhile, a lot of energy can be saved to bring good economic and social benefits for an enterprise.

The invention provides a method for treating desulfurization wastewater in a power plant. The method comprises the following steps: pretreating the desulfurization wastewater to obtain primary clarified liquor; enabling the primary clarified liquor to enter a filtering device to be filtered; providing a four-compartment electrodialyzer to perform ion recombination on ions in each water flow channel unit through an electric drive effect; further enabling produced water of each water flow channel unit to pass through a nanofiltration system to perform salt separation treatment, concentrating by utilizing an electrodialysis system, and desalinating the wastewater by utilizing a reverse osmosis system. According to the method disclosed by the invention, salts in the wastewater which are easy to scale are subjected to ion recombination so as to form soluble salts which are difficult to scale, so that the problem of scale formation in subsequent electrodialysis equipment or a high-pressure reverse osmosis system is solved. Moreover, according to the nanofiltration system for concentration, the electrodialysis system or the high-pressure reverse osmosis system, the content of total soluble solids in the wastewater is 8-16%, and the recovery rate of 80-90% of the wastewater is realized.

The invention discloses a recycling system and method of electroplating pretreatment sewage. The system comprises an electroplating pretreatment device, a collecting pool, a vibration membrane ultrafiltration device and a moderate pool, wherein the vibration membrane ultrafiltration device comprises a casing and a membrane unit and a motor which are installed in the casing; and the membrane unit is provided with a center transmission rod which downwardly stretches, thus an eccentric block on the center transmission rod is driven by the motor through a belt to rotate, so that a generated centrifugal force can trigger swing, and energy generated by swing promotes the membrane unit to vibrate through the center transmission rod, thus the silting problem of a membrane in the membrane unit is effectively solved, the capacity of resisting membrane pollution is stronger, sewage is simply and effectively treated, and treatment effect is better; the electroplating pretreatment device, the collecting pool and the moderate pool are coordinated and utilized to constitute a sewage recycling system so as to persistently and effectively separate out a clear liquid and a concentrated liquid; and the clear liquid is input into the moderate pool, subjected to oil removal and then recycled to the electroplating pretreatment device, thereby reducing water use amount and oil-removing powder use amount and achieving the purpose of reducing emission and reducing wastes.

The invention relates to the field of environmental protection, and specifically relates to a method for purifying salty waste water in a waste incineration fly ash process; the method uses a combination of scale inhibitors and ultrasonic anti-scale technology to solve the problem of evaporator scaling, and uses carbon dioxide to replace sodium carbonate and adjust pH , liquid caustic soda use and other plans to cooperate with the decanter centrifuge transformation to make appropriate adjustments to the existing water treatment system to ensure that the water quality of the distillation unit is in a controllable state. Not only that, the invention adopts two-stage distillation operation, adjusts the size of evaporator and crystallizer, and solves the problems of large evaporator, small crystallizer, easy scaling and high failure rate in the existing evaporation and crystallization system. The design of the invention has sufficient elastic margin and good system adjustability, which ensures continuous and stable operation of the equipment under the condition of fluctuating feed concentration and feed amount. The brine-containing purification process of the present invention has the characteristics of controllability, adjustment and easy operation.

The invention provides a desulfurization wastewater treatment method. The desulfurization wastewater treatment method comprises the following steps: pretreating desulfurization wastewater to obtain primarily clarified liquor, enabling the primarily clarified liquor to enter a softening reactor A, and regulating pH value to be 10-11; enabling producing water of the softening reactor A to enter a softening reactor B, and then treating by virtue of a microfiltration membrane system; regulating pH value of producing water of a microfiltration system to 6-7, enabling microfiltration producing water to enter a nanofiltration membrane system A, and separating to obtain nanofiltration A fresh water and nanofiltration A concentrated water; enabling the nanofiltration A fresh water and the nanofiltration A concentrated water to respectively enter four water passageway units of a four-compartment electrodialyzer, and carrying out ion recombination on ions in each water passageway unit by virtue of electric drive. The desulfurization wastewater treatment method provided by the invention has the advantages that salts easy to scale in the wastewater are recombined to form soluble salts difficult to scale, so that the difficulty of scaling of follow-up electrodialysis equipment or a high pressure reverse osmosis system is solved; and then the content of total dissolved solids in the wastewater is controlled to be 8-16% by virtue of concentration of the nanofiltration membrane system, an electrodialysis system or the high pressure reverse osmosis system, and the recovery rate of 80-90% of the wastewater is realized.