36results about How to "Control splash" patented technology

A supercharger for an internal combustion engine having an internal reservoir adapted to receive a supply of lubricating oil. An oil slinger is mounted on the impeller shaft for rotation therewith that extends into the reservoir for collecting and slinging lubricating oil onto the supercharger bearings, shafts and the drive and impeller gears. A baffle assembly is carried by the interior of the supercharger housing for controlling the volume and flow of lubricating oil onto said gears and bearings and directing oil flow therefrom back into said reservoir to prevent excessive lubrication buildup on the gears and the deleterious effects that result therefrom.

The present invention relates to the field of metal alloy test rod production, and provides a metal alloy test rod preparation method. According to the method, a vacuum suction casting device is adopted, wherein a vacuum chamber is filled with high purity argon to achieve pressure P1 of 0.02-0.06 MPa; when a button ingot surface layer is completely melted and a through hole on the bottom of an alloy ingot crucible is sealed through a liquid sealing manner, the vacuum chamber is continuously filled with high purity argon to increase pressure to P2, wherein pressure difference between the P2 and the P1 is 0.01-0.1 MPa; and pressure difference suction casting molding is adopted. The preparation method has the following characteristics that: high cleaning and high efficiency are provided; high uniformity and high accuracy of the components can be achieved; a size of the test rod can be phi 12 mm*120 mm; disadvantages of uniform component, difficult oxygen content control, long period or complex process, and the like of powder metallurgy, mold melting casting, extrusion molding, ingot processing and other test rod preparation methods are overcome; and strict requirements on the ideal alloy test rod by standard sample preparation, alloy design, performance testing, material feeding rod preparation and other processes can be met.

The invention discloses a method for controlling splashing in the less slag smelting decarbonization period of a converter. The technical problem that splashing is likely to happen in the decarbonization period of the double slag and remaining slag smelting technology of a converter in the prior art is mainly solved. The method for controlling splashing in the less slag smelting decarbonization period of the converter comprises the following steps of steel scrap adding, molten iron charging, converter blowing desilicication and dephosphorization, pre-slag pouring, converter blowing decarbonization, converter tapping and slag remaining. By means of control over adding of limestone or dolomite in the converter blowing decarbonization period, the oxygen supply strength is controlled to be increased step by step during lance feeding blowing, and the problems of explosive splashing during lance feeding blowing and returning dry splashing in the blowing process in the decarbonization period are well controlled through adjustment on the lance height and the oxygen supply strength in the blowing process.

The invention discloses a waste gas treatment system for detecting heavy metals in food. The system comprises a waste gas cavity, wherein an adsorption chamber is formed in the upper part of the waste gas cavity, the bottom of the waste gas cavity is connected with a reaction ball chamber, a plurality of calcium oxide adsorption layers are arranged in the adsorption chamber, each calcium oxide adsorption layer comprises a fiber skeleton and calcium oxide applied to the fiber skeleton, and the fiber skeletons are wound into a spiral line structure by a fiber bundle; a conical chamber is formed in the lower part of the waste gas cavity, and the bottom tip end of the conical chamber is in sealed communication with the reaction ball chamber; the system further comprises an air circulation device which comprises a pipe, one end of the pipe is communicated with the upper part of the adsorption chamber, the other end extends into the reaction ball chamber, an air pump is arranged on the pipe, and the pipe is further connected with a first branch pipe and a second branch pipe. Adsorption and digestion are performed in a closed environment in a fully sealed form, so that the waste gas cannot leak, and little harm is caused to the environment and human bodies. The reaction digestion condition can be clearly observed through the waste gas chamber and the reaction ball chamber which are made of transparent glass.

The present invention provides a clutch manipulation assist device, which includes a clutch assist actuator, the actuator is arranged at a position where it is possible to suppress the influence of heat from an engine on the actuator without requiring the heat insulation structure or the like. The clutch manipulation assist device includes a clutch mechanism (61) which is arranged in a power transmission path for transmitting a rotational driving force of an engine (17) to a wheel, a clutch-manipulation mechanism in which a clutch manipulation force is inputted, and an actuator (73) which generates a clutch assist force in response to a manipulation of the clutch manipulation mechanism, the actuator is arranged in front of the engine (17) and outside a main frame (8).

A tube for pouring liquid metal has a pouring channel with a pouring axis. The tube has a downstream part with a pouring channel with an outlet diameter, and a flared upstream part with a length known as the threshold distance. The threshold distance is greater than four times the outlet diameter. The upstream part is flared and configured so that its upper end has a convex overall shape in the axial direction. The upstream part is included within a first volume corresponding to the complementary part of an axisymmetric frustoconical volume having as its axis the pouring axis. The generatrix of the volume forms an angle greater than 5 degrees with the pouring axis. The upstream part is included within a second volume, delimited by a surface of revolution generated by an isosceles trapezium revolving about the pouring axis.

The invention relates to a method of controlling green environment-friendly smelting of a converter. The method concretely comprises the following steps of (1) performing double-slag operation when Si+ Ti is not less than 0.7%; (2) performing converter rocking for more than two times altogether after the double-slag operation is ended, wherein the converter rocking angle is 30 degrees to -30 degrees, and performing lance sinking for oxygen blowing after waiting for 1 min to 2 min at a zero position; (3) manually adjusting an oxygen pressure valve to 30% to 35% during secondary lance sinking,wherein oxygen flow is 35000 m<3> / h to 38000 m<3> / h, and the lance height is 3.0 m to 3.2 m; (4) performing oxygen blowing for 30 s to 40 s, and after the flow is stabilized, manually adjusting the pressure valve to return to 85% to 88% of the initial state, and adjusting the oxygen flow to 51000 m<3> / h to 53000 m<3> / h; and (5) pressing slag by using a slag pressing material at the early stage andintermediate stage of blowing, wherein the addition amount of the slag pressing material is 200 to 300 kg per batch; and at the later stage of blowing, only allowing to add an iron-contained material, wherein the addition amount of the iron-contained material is not greater than 300 kg per batch. According to the method disclosed by the invention, through technology optimization, metal splashingliable to occur during secondary lance sinking is effectively controlled; the phenomenon that smoke dust overflows to cause pollution during secondary lance sinking is eliminated; stable control oversmelting of the converter is realized; environmental pollution is reduced; and meanwhile, the metal charge consumption is reduced.

The invention discloses an application of coal gangue as a slag suppressing agent for a converter and a method for suppressing slag in a converter. In the method, coal gangue is used as a base material of the slag suppressing agent, and the amount added each time is 1 to 2 kg / ton in the blowing process for suppressing slag. For steel, 0.2-0.5kg / ton of steel is added each time when suppressing slag in the furnace and tapping process. A small amount of slag inhibitor can achieve good slag suppression effect; it can effectively control the splashing in the converter blowing process. Due to the low price of raw materials and simple processing technology, the cost of the slag inhibitor is only 10% to 30% of the original process; and the waste of raw coal or magnesium resources is effectively avoided. This method is aimed at the situation that the iron oxide is too high and soft blowing in the blowing process, it is difficult to reverse the furnace at the end of the blowing, and the slag overflows after the supplementary blowing. The purpose of tapping. The method has no adverse effect on the environment, saves resources and reduces costs, and has popularization and application value in steelmaking production plants.