124results about How to "Avoid pollution" patented technology

A system and a method for a medical diagnostic device are described herein. The medical diagnostic device can include an outer sleeve having a hollow interior and open distal and proximal ends, the outer sleeve being defined by a substantially tubular configuration including a proximal section having a substantially conical shape. A core is configured to be inserted axially within the outer sleeve. The core includes an axial inner cavity. The core is further defined by a proximal section having a conical shape substantially conforming to the proximal section of the outer sleeve. The core retains a diagnostic assembly, that can include at least one of a sample collecting assembly and an imaging assembly, that can be integrally or interchangeably attached and wherein the device can be utilized for self-patient or single patient use.

The present invention relates to chemical industry technology. The preparation of nanometer cobaltosic oxide powder includes purifying material, cobalt salt deposition, solid-liquid separation and solid calcination. Cobalt sheet is dissolved in nitric acid while being heated and high purity water is added to regulate solution density and pH value so as to obtain cobalt nitrate solution of 1.5-1.65 g / cu cm density and pH 4-5; ammonium bicarbonate suspension in 14-30 wt% is prepared with ammonium bicarbonate and water; cobalt nitrate solution is added into the suspension slowly to result in weight ratio of carbonate radical to cobalt ion being 2.4-2.6; and the wet cobalt carbonate material is heated to 300-450 deg.c for 3-6 hr to obtain black Co3O4 powder.

The invention provides a device technology configuration method for treating house refuses by using a rotary cement kiln, comprising a pre-treatment device technology configuration method and an incineration device technology configuration method, wherein the whole process of the crushing treatment of the house refuses is implemented by using the pre-treatment device technology configuration method, and a whole incineration process is carried out on the crushed house refuses by using the incineration device technology configuration method; the incineration device technology configuration comprises a double-layer power-driven flap valve, an L-shaped incinerator, a double-layer heavy punch flap valve, a vibrating conveyor and a bucket elevator; and partial tertiary air captured from a tertiary air tube of a rotary kiln enters into the L-shaped incinerator through an air intake tube and high temperature incineration is carried out on the house refuses in the incinerator, smoke generated when incineration passes through an air discharging tube and then is converged with the tertiary air tube, a loop formed by the air intake tube and the air discharging tube of the L-shaped incinerator is provided with a second high-temperature electric butterfly valve and a third high-temperature electric butterfly valve, and a first high-temperature electric butterfly valve is arranged on the tertiary air tube. Harmful gases such as dioxin can be inhibited by high-temperature environment which is generated by using the rotary cement kiln.

The invention relates to a method and equipment for the oil-water separation and wastewater purification and treatment of kitchen wastes. The method and the equipment can carry out field collection or wastewater purification and standarization treatment on the kitchen wastes swill or domestic wastewater in the fields of a restaurant, a hotel, a department, a house, milk plant, a food products factory, a brewery, a hospital, a beverage plant, a slaughterhouse, a chemical plant and the like, separates the swill into drainage oil and kitchen wastewater, continuously carries out fast and continuous purification treatment on the domestic wastewater anytime and anywhere and ensures that the quality of purified water achieves the nationally specified (GB18918-2002) emission standard of a town sewage processing plant. The heating and temperature-regulating type wastewater purification treating equipment disclosed by the invention has the advantages of small occupied area, high wastewater purification starderization speed, low wastewater treating equipment investment, low wastewater treatment cost, and the like. The method and the equipment which are disclosed by the invention have the advantages of good industrial practicability, novelty and creativity.

The invention relates to a suction sludge dewatering sand dredger which is characterized in that a sludge processing device is arranged on a boat body and comprises an extracting unit, a sieving unit, a heavy metal processing unit, a dewatering unit, a deodorizing unit, a dewatered sludge collecting unit and a wastewater processing and discharging unit. In the invention, the integral design of sediment dewatering processing device for urban landscape water pollution is realized; the sludge is immediately dried and dewatered while dredging; and the processed sludge can be directly used in the agricultural field, therefore, the pollution on the environment is avoided.

The invention discloses a method for preparing stem cells from a human amniotic membrane, specifically relates to a method for separating epithelial cells and mesenchymal stem cells from the amniotic membrane, and relates to the technical field of cell separation. The method comprises the following steps: collecting a placenta by self-made sterile, efficient and stable placenta protecting liquid; and separating amniotic membrane epithelial cells and amniotic membrane mesenchymal stem cells by combining a digestion process and a climbing process to respectively obtain high-purity amniotic membrane epithelial cells and high-purity amniotic membrane mesenchymal stem cells. The method disclosed by the invention solves a problem that subsequent cell separation and culture is directly affected by high human amniotic membrane collecting pollution rate and poor activity of the collected cells in the prior art. According to the method disclosed by the invention, the method for separating the stem cells from the amniotic membrane is improved and created to form a standard separating scheme, so that the stem cell resource can be utilized more stably and sufficiently, pollution is avoided, purity is high and the number of the cells is large; while the cell activity is kept, original characteristics of the stem cells are ensured.

The invention discloses an anti-blockage mine ventilator. The anti-blockage mine ventilator comprises a machine sleeve; a fixed frame is arranged at one end in the machine sleeve; a motor is arranged in the fixed frame; the surface of a rotating shaft of the motor is sleeved with a bearing sleeve; a blade is arranged at one end of the bearing sleeve; a connecting rod is arranged at one end of the blade; the surface of one end of the connecting rod is sleeved with a separation net; the separation net is sleeved into a fixed sleeve; and the outer side of the fixed sleeve is connected with the machine sleeve. Through mutual matched use of the connecting rod, a connecting ring, a fixed rod, a fixed plate and a cleaning brush, the anti-blockage mine ventilator achieves the advantages of conveniently cleaning the separation net, preventing blockage of the separation net, guaranteeing the ventilation efficiency and the circulation of air in mine ways and prolonging the service life of the ventilator; and the anti-blockage mine ventilator is provided with a collecting box, and a collecting cavity, a filter plate and a graphite plate are arranged in the collecting box for mutual matched use, so that the advantages of preventing flowing out of dust through wind currents and protecting the environment and the health of external workers are achieved.

The invention discloses a preparation method of a sheepskin collagen casing. The preparation method comprises raw sheepskin immersion in water and washing, liming hair removal, hydrogen peroxide treatment, primary pickling, mincing and beating, compounding, secondary pickling, homogenization and filtration, extrusion and curing, water washing and plastification, UV crosslinking, drying and humidification. The preparation method realizes the comprehensive utilization of bur sheepskin, prevents the waste of resources and the pollution of the environment and can produce huge economic and social benefits.

The invention belongs to the technical field of dissolved oxygen sensors calibration and discloses an optical dissolved oxygen sensor in-situ self-calibration device which comprises a calibration gasgenerator and a calibration device underwater part; the calibration gas generator comprises a saturated air bottle, a high-purity nitrogen bottle, a quality flow controller and a water removal device;the calibration device underwater part comprises a calibration test box, a dissolved oxygen sensor to be calibrated in the calibration test box and a temperature, humidity and air pressure sensor; and the calibration test box is provided with a water inlet, a water outlet and a gas inlet. By adopting the optical dissolved oxygen sensor in-situ self-calibration device and method, by using gas calibration to replace solution calibration, the proportioning process of gradient water bodies with different dissolved oxygen concentrations in a solution is simplified, so that the calibration flow canbe simplified, the calibration time can be saved, and the accuracy of calibrating a reference oxygen concentration in situ is improved; adopted calibration gas cannot cause atmospheric pollution after diffusing in air; and in-situ self calibration is realized with an important role of improving the quality of data monitored with the dissolved oxygen sensor in situ and prolonging the in-situ maintenance-free running time.

The invention provides a preparation method for a pitaya peel-based edible packaging film. The preparation method is characterized by comprising the following steps: (1) washing and stripping and slicing pitaya peels; (2) performing blanching treatment; (3) adding water and pulping to obtain pitaya peel pulp, wherein the mass ratio of matter obtained in the step (2) to the water is (15 to 45):100; (4) adding a thickening agent and a plasticizer into the pitaya peel pulp, wherein the mass ratio of the thickening agent to the pitaya peel pulp is (0 to 0.4):100, and the mass ratio of the plasticizer to the pitaya peel pulp is (0 to 0.3):100; the thickening agent is sodium alginate or sodium carboxymethylcellulose, and the plasticizer is glycerinum or sorbitol; (5) performing homogenization treatment at a treatment rate of 15000 to 20000 r / min for 5 to 8min; then, performing degassing treatment and standing to obtain shaped pulp; (6) casting and drying, and then performing film uncovering to obtain the pitaya peel-based edible packaging film. The invention also provides the packaging film prepared by the preparation method.

The present invention discloses a Pt Ni Al bonding layer doped with binary trace active elements and capable of being completely oxidation resisting at 1200 DEG C and a preparation method thereof and belongs to the field of novel thermal barrier coatings and the preparation technologies. According to the invention, firstly, a Pt layer with the thickness of 5-10 microns is prepared on a nickel base monocrystal high temperature alloy matrix through the plating or the electron beam physical vapor deposition method, and then a NiAlHfZr coating with the thickness of 20-60 microns is deposited on the Pt layer through the electron beam physical vapor deposition method. The Pt layer reduces the interfacial holes and effectively improves the adhesion of an oxidation film; binary doping of Hf, Zr enables the NiAl coating surface to be smoother and denser and enables the oxidation film generated during the oxidation process on the coating surface to be straighter, especially with little oxidation increase, and greatly improves the oxidation resistance of the coating. The Pt Ni Al bonding layer is completely oxidation resisting at 1200 DEG C. The service life of the coating is prolonged to certain degree through doping of binary elements namely Hf and Zr and Pt modification.

The invention discloses a method for treating human excrement. The method comprises the steps as follows: (1) a liquid in the human excrement is discharged into an original liquid storage tank, and solids are dehydrated; (2) solids obtained after dehydration treatment in the step (1) are subjected to aerobic fermentation after being crushed; (3) secondary fermentation is performed; (4) materials obtained after the secondary fermentation are used as solid fertilizer. The invention also discloses a system adopting the method. The system comprises impurity removal equipment A, a dewatering deviceA, the original liquid storage tank, a crusher A, a distributor A, a full-closed fermentation tank A, an oxygen generator and the like. The method and the system for treating the human excrement havethe advantages as follows: a complete production process is provided for recycling of human excrement, a scheme is provided for urban emission reduction and sewage treatment plant pressure reduction,waste can be reused, and sustainable development can be realized really.

The invention discloses a concrete crushing and recycling device. The concrete crushing and recycling device comprises a crushing mechanism, a dust channel and a mud generating mechanism, wherein thedust channel is formed in one side of the crushing mechanism; and the mud generating mechanism is arranged on one side of the dust channel. According to the concrete crushing and recycling device, a crushing roller adjusting mechanism is additionally arranged, and the distance between crushing rollers can be adjusted in real time according to concrete of different sizes, so that the crushing effect is better, jamming is prevented, and the crushing efficiency is improved; and dust generated in the crushing process is collected and made to form mud under the action of an atomization spraying mechanism, and the mud is discharged under the combined action of a mud settling mechanism and a discharge box, so that the dust is effectively controlled, and the environmental pollution is prevented; and meanwhile, the dust can be reprocessed and reutilized, so that raw materials are saved, and waste is prevented.

The invention provides a quantitative liquid outlet bottle cover. The quantitative liquid outlet bottle cover comprises a bottle cover body and a cylinder, wherein the upper end of the bottle cover body is rotatably connected with the lower end of the cylinder through a connection cap; a liquid outlet hole penetrating through the upper end of the bottle cover body and the connection cap is formed in the bottle cover body and the connection cap; a baffle plate is arranged at the bottom of the cylinder; a sealing ring is arranged between the baffle plate and the cylinder; a liquid inlet hole is also formed in the position, corresponding to the liquid outlet hole, of the baffle plate; a fixed blocking piece, a sliding blocking piece and a rotating shaft arranged in the length direction of the cylinder are arranged in the cylinder; the rotating shaft adopts a hollow structure, and a position adjusting rod is arranged in the rotating shaft; the lower end of the position adjusting rod is fixed to the baffle plate, the upper end of the position adjusting rod extends out to the outer side of the end of the rotating shaft, and the upper end of the rotating shaft penetrates through the upper end of the cylinder and extends to the outer side of the cylinder; and a rotary knob with a pointer is arranged at the upper end of the rotating shaft. The quantitative liquid pouring is realized by taking the bottle cover as a starting point, and the bottle cover can realize standardized production and can be repeatedly used for many times for different bottles. The quantitative liquid outlet bottle cover belongs to the field of quantitative fluid obtaining.

The invention discloses a ceramic valve element with a drinking water control function. The ceramic valve element is formed in the manner that a rotating base is arranged in a valve shell in an assembled manner, a linking block, a movable valve block and a fixed valve block which are sequentially overlapped are arranged below the rotating base, a valve rod upwards extending out of the valve shell is arranged in the rotating base in pivoted manner, a stirring part at the bottom end of the valve rod and the linking block are embedded, the movable valve block is embedded through the linking block, and the movable valve block is driven by the linking block to move horizontally or rotate through the operation of the valve rod; by means of the change of the position corresponding relation between the movable valve block and the fixed valve block, a tap is controlled to allow water to flow or stop water flowing, or the mixing proportion of cold water and hot water and the output water flow are changed, and internal members such as the fixed valve block, the movable valve block, the linking block and the rotating base are stopped from dropping out through combination of a valve seat below the valve shell. The ceramic valve element can control use of tap water and drinking water, and the complexity of the whole structure is effectively simplified.

The invention discloses a fused deposition type 3D printing method based on a biopolymer prefabricated bar. According to the novel printing method, the biological prefabricated bar and a specially-made printing spray head are effectively combined. The structure principle is simple, operation is convenient, and the customized biological prefabricated bar with the higher degree of freedom can be manufactured. In subsequent application, the excellent performance of organic polymeric materials is maintained while smooth pushing, fusing and extruding of the bar are guaranteed, and pollution and waste of the biomedical polymer materials in the actual printing process are effectively avoided.

The invention provides an integrated electrolysis atomization module and atomization device. The integrated electrolysis atomization module comprises an electrolysis assembly and an atomization assembly, the atomization assembly comprises an installation base and a flat plate atomization piece installed on the installation base, and the flat plate atomization piece is used for atomizing liquid above the flat plate atomization piece and spraying the atomized liquid upwards; the integrated electrolysis atomization module is characterized in that the electrolysis assembly comprises at least one electrolysis electrode pair, namely a first electrolysis electrode and a second electrolysis electrode, an electrical isolation distance is formed between the first electrolysis electrode and the second electrolysis electrode, the first electrolysis electrode and the second electrolysis electrode are connected to the installation base, and the projection of the electrolysis assembly avoids the flatplate atomization sheet when viewed from top to bottom; electric signal connection between the electrolysis electrode and the control circuit board is achieved through the conductive bolt (or in combination with the mounting base), mechanical connection of the electrolysis electrode can be achieved at the same time, the overall structure is simple, and a simple sealing structure can be adopted.