31results about How to "Reduce the amount of liquid" patented technology

The invention discloses a liquid chromatography high-pressure parallel cam pump, which comprises a motor, a pump main body, a cleaning block, a cam shaft, two cylindrical cams, two pump heads and two sets of reciprocating liquid delivering mechanisms, wherein each set of the reciprocating liquid delivering mechanisms comprises a plunger push rod, a plunger backseat, a plunger and a roller wheel; the pump heads are provided with pump chambers, liquid inlet holes and drain holes; one end of the plunger extends into the pump chambers of the pump heads; a sealing ring is arranged between the pump heads and the plunger; a compression spring is sleeved outside the plunger; the back end of the compression spring presses against a shaft shoulder of the plunger backseat; N groups of cam curves are uniformly formed on the outer circumference of the cylindrical cams, N is an integer more than or equal to 2, and each group of the cam curves comprises ascending curves and descending curves; and the degree of the phase difference of the two cylindrical cams is 180 / N. Compared with the prior art, for the liquid chromatography high-pressure parallel cam pump, under the condition that the motor rotating speed, the delivery capacity per revolution of the pump and the diameter of the plunger are the same, the to-and-fro movement frequency of the plunger is improved by N times, and the pressure fluctuation of the liquid chromatography high-pressure parallel cam pump in work is reduced.

The invention provides a substrate processing apparatus for processing a substrate via a processing solution capable of decreasing consumption and drainage of the processing solution, while maintaining processing performance of the processing solution and increasing in availability of the substrate processing apparatus. The substrate processing apparatus of the present invention comprises a cooling mechanism for cooling a processing solution and a filter for removing impurities contained in the processing solution, at some midpoint in a circulation path of the processing solution. With this constitution, the substrate processing apparatus can precipitate the impurities dissolved in the processing solution and remove the precipitated impurities. It therefore becomes possible to maintain theperformance of the processing solution and reuse the processing solution. Further, the frequency of changing the processing solution to a new solution decreases, and this causes an increase in availability of the substrate processing apparatus and a decrease in consumption and drainage of the processing solution.

The invention belongs to the technical field of extraction devices, and in particular relates to a closed-type crop leaf surface secretion circulation extraction device, which includes a double-mouthed round-bottomed flask, a separatory funnel with a suction filter, and a flat-bottomed funnel sequentially connected from bottom to top , a separatory funnel, a tail connecting pipe and a condenser tube, and the branch of the double-necked round bottom flask is connected with the outlet of the condenser tube through a joint and a glass tube. The device of the invention makes up for the harm to the body of operators and the defects of large consumption of volatile organic solvents in the existing extraction method, accelerates the extraction speed, and reduces the error of human operation. The device of the invention is cheap, easy to operate, and can safely, efficiently and quickly extract the secretions from the leaves of crops.

The invention belongs to the field of undetermined refractory materials and particularly relates to an iron runner ramming material containing 90% of waste refractories or above. The iron runner ramming material is prepared from, by mass, 56%-60% of waste carborundum brick particles, 5%-9% of waste aluminum carborundum brick powder, 10%-19% of waste 95 ceramic particles, 3%-7% of waste silicon carbide dust drawing powder, 2%-6% of waste silicon carbide sagger powder, 2%-2.5% of waste mixed alcohol, 4.5%-5.5% of thermosetting resin, 0.1-1.4% of asphalt powder, 1.5%-3.5% of silicon dioxide micro powder, 0.4%-0.8% of antioxidant and 0.3%-0.5% of agglutinant. The utilization proportion of the waste refractories of the iron runner ramming material reaches 90% or above, the advantages of being excellent in industrial application performance and low in comprehensive cost are achieved, and economic benefits and social benefits are remarkable.

The invention relates to a method for monitoring and adjusting the stability of the liquid level of an etching trough. The method sequentially comprises the following steps that (a) a liquid level instrument is placed at each test point, and the standard liquid level height Hs and the standard liquid level tolerance delta Hs at each test point are recorded; (b) the liquid level height Hn at each test point is recorded, and when the absolute value of the difference between the liquid level height Hn at each test point and the standard liquid level height Hs of the corresponding test point exceeds the standard liquid level tolerance delta Hs, the heights of a front baffle and a rear baffle, the opening degree of an air outlet and the liquid inlet quantity of an agent inlet pipe of the etching trough are adjusted correspondingly; (c) when the absolute value of the difference between the liquid level height Hn at each test point and the standard liquid level height Hs of the corresponding test point exceeds the standard liquid level tolerance delta Hs, the step (b) is repeated. In this way, on one hand, the liquid level condition of the etching trough can be monitored in a quantitative mode, and a direct and effective method is provided for control over the process stability of the etching trough; on the other hand, the liquid level of the etching trough can be adjusted regularly, and the rate of adjusting the liquid level of the etching trough is increased.

The invention relates to a process for preparing bamboo dissolving pulp. In the process, a bamboo material is sliced up, washed, pre-soaked and continuously cooked to produce an unbleached pulp pulp plate or pulp; the pre-soaking is to use an enzyme preparation as a pre-soaking agent to perform the pre-soaking treatment on the bamboo material after slicing up and washing; the continuous cooking is to add sulfate cooking liquid to the pre-soaked bamboo material for continuously cooking one to form pulp; and the bamboo dissolving pulp is obtained. Compared with prior art, the process has the advantages of simple flow, high production efficiency, little emission of waste liquid, low energy consumption, high pulping purity, good solubility, more than 95 percent of alpha-cellulose content and the like.

The invention relates to a ball smearing body which comprises a container, an elastic piece, a ball and a ball cover. One end of the container is an installation portion, a first liquid outlet hole is formed in the upper end of the installation portion, the ball is arranged above the installation portion, the ball cover covers the ball and is fixedly arranged at the outer side of the installation portion, the elastic piece is installed between the installation portion and the ball, a second liquid outlet hole is formed in the elastic piece, the elastic piece comprises an outer ring and a sealing post, and the sealing post can be connected to the outer ring in a vertically and elastically moving mode. When the ball of the ball smearing body conducts smearing on the skin of the human body, due to the fact that the sealing post can vertically move in an elastic mode, a user can feel soft on the skin and the comfort is improved when the ball smearing body is used. In addition, when the skin of the human body presses the ball, the sealing post moves downwards and is closed to the first liquid outlet hole, so that the liquid outlet amount is reduced, and therefore the liquid outlet amount can be adjusted according to pressure exerted on the ball by the skin of the human body.