54results about How to "Precisely control the quantity" patented technology

The invention discloses a fire coal blending method of thermal power plants, which belongs to the technical field of thermal power generation and automation and includes: building a coal yard inventory three-dimensional information model database according to coal yard inventory information; building a boiler combustion standard information base according to requirements of each boiler on coal quality and boiler self influence factors; generating a constraint condition according to the boiler combustion standard information base and the coal yard inventory three-dimensional information model database, and building a fire coal economical objective function to obtain a fire coal blending model; and calculating all fire coal blending proportion schemes when the boilers consume standard coal with a set quantity according to the fire coal blending model, and selecting a scheme with topmost layer coal as the optimum scheme. The fire coal blending method is most economical, reduces unit energy consumption price and improves economic benefit of power generation enterprises under the premise of ensuring boiler safe combustion.

The invention discloses a direct dynamic force measurement device of a shock-wave-loaded double-raw model sphere array. The direct dynamic force measurement device comprises a high-pressure air source, a driving section, a diaphragm, a driven section, a tested section, a metal wire, model spheres and a high-speed data acquisition system, wherein one end of the driving section and one end of the driven section are connected by the diaphragm to form a shock tube; the high-pressure air source is connected with the other end of the driving section; one end of the tested section is connected with the other end of the driven section; and lead wires of accelerometer sensors in the model spheres inside the tested section are connected with the high-speed data acquisition system. According to the direct dynamic force measurement device disclosed by the invention, the tested section, which is a transparent organic glass pipe, can be used for carrying out optical measurement; different model sphere arrays needed by experiments can be formed by accurately controlling the number, distribution and spacing of the model spheres because the tested section is provided with double rows of holes and 36 small holes are uniformly distributed in the same radial sections of each row of holes; and the direct measurement on the dynamic force of a shock-wave-loaded granule group is realized by the accelerometer sensors and the high-speed data acquisition system. According to the invention, a good experimental device and testing method are provided for subsequent research.

The invention provides a manual injection booster. The manual injection booster is characterized in that a pin shaft I is respectively arranged on the inner surfaces of a gun shell I and a gun shell II; a supporting plate I, a supporting plate II, a sleeve pipe I and a sleeve pipe II are arranged in an inner cavity; an arc groove is arranged at the upper part of a gun body; a pin shaft II is respectively arranged at two sides of a trigger; two ends of a trigger shaft equipped with the trigger are supported on the gun shell I and the gun shell II; one ends of springs are hung on pin shafts I; the other ends of the springs are hung on pin shafts II; the extending end, penetrating through the supporting plate II and provided with a clamping sleeve and a boosting sleeve in a sleeving manner, of a boosting rod is inserted into the sleeve pipe I; two ends, fixedly equipped with shifting forks, of a shifting fork shaft are supported at the central parts of the gun shell I and the gun shell II; pin shafts III of the boosting sleeve are located in U-shaped grooves of the shifting forks; one ends of chain pieces are hinged with the central parts of the shifting forks; the other ends of the chain pieces are hinged with two ends of a chain pin; two ends of an injection tube are arranged in the arc groove located at the upper part of the gun body through hoops; one end, equipped with a plunger, of a plunger rod is inserted into the injection tube; and the other end of the plunger rod is connected with the end part of the boosting rod through a transmission plate. The manual injection booster provided by the invention is light and convenient to operate, and can easily and accurately control the injection liquid quantity.

Method and machine for rubberizing an annular surface (2) of a body (3), the rubberized coating being applied by bringing said annular surface (2) into rotation about an axis (5) and progressively coating the annular surface (2) itself by means of a strip (7), of a determined section, of elastomeric material supplied by an extruder (9), shaped by at least one calender (18; 40) and applied, at a determined application speed, to the annular surface (2) to be rubberized by an a spreadingapplicator roller (11) presenting having a determined peripheral speed and positioned tangential to the annular surface (2) to be rubberized at a point (35) of application of the strip (7); the rotation of the annular surface (2) being controlled so as to maintain the constant application speed constant; and the section of the strip (7) being controlled by applying to the strip (7) itself a first, drawing stretch, always constant, between the spreading applicator roller (11) and the annular surface (2) to be rubberized, and a further drawing stretch upstream to the first drawingstretch; the further drawing stretch being constant to apply to the annular surface (2) a strip (7) with a constant section, or variable in order to apply to the annular surface (2) a strip (7) with variable section according to a determined law.

The invention discloses a three-dimensional pyramid construction method based on triangular patch number division. The three-dimensional pyramid construction method comprises the steps of: S1, setting a single-node maximum triangular patch number FaceCount parameter and a single-component maximum triangular patch number meshFaceCount parameter respectively; S2, reading data of the three-dimensional model, and analyzing geometric, texture and attribute information of the three-dimensional model; S3, setting the maximum depth of the binary tree, and setting the read three-dimensional model as a root node of the binary tree; S4, determining the coordinate axis direction of node splitting, and splitting the binary tree; S5, traversing the binary tree, and recalculating an outer bounding box of each node of the binary tree; combining components with the same texture in the three-dimensional model, and constructing a component set; S6, traversing binary tree nodes, calculating triangular patch simplification parameters of the current node, and performing triangular patch simplification; S7, recalculating the texture coordinates of the simplified triangular patch; and S8, outputting model pyramid data.

The invention discloses a high-yield digital control and treatment method for a rice field. The method comprises the following steps: grinding: a powdery fertilizer directly passes through a movable filter plate to fall, a pressing plate presses the top of the caked fertilizer, and a driving motor drives an eccentric wheel to continuously rotate, so that the movable filter plate reciprocates back and forth, the caked fertilizer is ground into powder, and the powder is accumulated at the bottom of a solid fertilizer storage box; according to the device, the driving motor is used for driving the rotating rod and the eccentric wheel to rotate, the eccentric wheel can press the extrusion block, the extrusion spring is compressed, the movable rod and the movable filter plate can move backwards, the elastic reset capacity of the extrusion spring can push the movable filter plate forwards, and then the movable filter plate slides back and forth in a reciprocating mode; the movable filter plate is arranged on the movable filter plate to rub caked fertilizer left on the movable filter plate, so that the fertilizer is gradually crushed in the grinding process, manual knocking-open crushing is not needed, the working efficiency is improved, it is ensured that the fertilizer is all powdery, and the situation that the normal effect of the fertilizer on a rice field is affected due to the fact that the spilled fertilizer is caked is avoided.

The present invention relates to the technical field of packaging equipment, in particular to a quantitative horizontal packaging machine, which includes a frame on which a horizontal machine, a screw unloading mechanism, a bowl-type lifting mechanism, and a measuring cup unloading mechanism are sequentially fixed from left to right. Mechanism and vibrating feeding mechanism, a screw lifting mechanism is also fixed on one side of the frame to be connected with the aforementioned screw feeding mechanism, the screw lifting mechanism includes a lifting bracket, and a lifting hopper is fixed on the lifting bracket, and the lifting hopper A conical bucket is connected to the bottom, and a lifting pipeline is fixed on the lifting bracket. One end of the lifting pipeline is connected with the bottom of the aforementioned conical bucket, and a discharge pipeline is fixed at the bottom of the other end of the lifting pipeline. There is also a discharge pipeline inside the lifting pipeline. Fixed with lifting screw. The device can add various granular materials, powder materials and flake materials into the packaging bag according to a certain amount, realizes precise cutting, and cuts the materials according to the best ratio, so that the nutrition is the most balanced.

The invention relates to an agricultural machine, in particular to a seeder, comprising a frame, a seed box mounted on the top of the frame, a seed carrying assemble mounted under the seed box and a seed distributing assemble mounted at the front end of the frame, wherein a displacement assemble is mounted at the bottom end of the frame, an open for placing the seed is arranged on the seed box, a punching assemble is mounted at the lower end of the frame and connected with a motion assemble, a positioner capable of locking the moving distance of the displacement assemble is mounted at the displacement assemble. In the invetnion, the seed distributing shaft, the seed pushing rod and the seed carrying shaft are imbined, so that the amount of the seeds falling into each cavity can be precisely controlled by the drawing of the seed pushing rod in the sowing process, the seed distributing amount is precise and less.

The invention discloses a fixed-grain packaging device for corn seeds. The fixed-grain packaging device for the corn seeds comprises a pre-selecting mechanism and a separate packaging mechanism; the pre-selecting mechanism comprises a first conveying belt, a seed collecting cylinder and an air blower, the seed collecting cylinder is provided with a first through hole and a second through hole, thefirst conveying belt is used for conveying the corn seeds, one end of the first conveying belt penetrates through the first through hole to stretch into the seed collecting cylinder, and the air blowing direction of the air blower is obliquely formed upwards and faces the second through hole; and the separate packaging mechanism comprises a second conveying belt, a hopper and a third conveying line, the second conveying line is located under the seed collecting cylinder and is close to the seed collecting cylinder, a soft matrix is fixedly connected to the surface of the second conveying lineand provided with multiple groups of containing grooves, each group comprises a plurality of the containing grooves, the hopper is located under the tail end of the second conveying line, and the third conveying line is located under the hopper and used for conveying packaging boxes. According to the fixed-grain packaging device for the corn seeds, precise fixed-grain packaging of the corn seedscan be achieved, the structure is simple, and the fixed-grain packaging device for the corn seeds is suitable for being popularized.

The invention discloses a method for preparing nano-carbides to enhance the stability of a substrate based on EB‑PVD. EB‑PVD equipment is used to deposit a layer of dense carbon film, combined with diffusion treatment, so that carbon elements and single crystal superalloy substrates in the near surface area Combining refractory elements in situ to generate dispersed nano-carbides, fix the refractory elements in the matrix in the form of carbides, so as to inhibit the loss rate of refractory elements in the matrix during the service process, and enhance the high-temperature structure stability of the matrix To prevent the formation of secondary reaction zone (SRZ) during service. The present invention adopts EB‑PVD equipment to deposit a carbon film on a single crystal substrate, uses pure carbon as a carbon source, overcomes the difference in carbon activity during diffusion, maintains the consistency of carbon activity, and avoids other carburizing processes, such as During the process of chemical vapor carburizing, gas composition fluctuations or carbon activity are not easy to control, which improves the controllability of carbide quantity, morphology, distribution and depth.

The invention relates to a concrete faced rockfill dam water stop mortar bed construction trolley which comprises a frame. The frame and an electric winding machine installed on the top of a dam are connected through a traction steel wire rope. The bottom of the frame shares the same degree of inclination with a dam body. Wheels are arranged on the bottom of the frame. A mortar storing tank is arranged on the frame. A mortar pulling mold is arranged at the bottom of the mortar storing tank. A discharging opening of the mortar storing tank is located in the mortar pulling mold. According to the concrete faced rockfill dam water stop mortar bed construction trolley, the mortar storing tank and the mortar pulling mold on the construction trolley are matched and walk up and down under the drive of the electric winding machine along the center of a concrete face open seam. Thus, the amount of mortar needed in a mortar bed groove of a control panel can be accurately controlled, construction quality of a mortar bed is ensured and in addition, the construction trolley walks from bottom to top and the mortar is arranged from bottom to top. No damage will be caused to the paved mortar bed and the surface evenness of the mortar bed will not be affected.