30results about How to "Shorten clarification time" patented technology

The invention discloses an arsenic-free glass bottle, which solves the problems that the conventional food packing glass is not favorable for human health and environmental protection and cannot reach state specified standards due to higher arsenic and antimony dissolution amount. The arsenic-free glass bottle is prepared from raw materials comprising the following components in part by weight: 51 to 63 parts of quartz sand, 3 to 9 parts of lithium (or sodium or potassium) feldspar, 12 to 19 parts of calcite, 0 to 20 parts of dolomite, 1 to 3 parts of calcium sulfate, 0 to 2.2 parts of fluorite, 0 to 3 parts of sodium fluosilicate, 15 to 21 parts of soda ash, 0.1 to 0.5 part of sodium sulfate, 0.3 to 1 part of calcium sulfate and 0.1 to 0.5 part of cerium oxide. The components are mixed uniformly, melted, molded and annealed to form the arsenic-free glass bottle according to the conventional glass bottle manufacturing method. The arsenic of the arsenic-free glass bottle is far below the state specified dissolution permissible amount, so the arsenic-free glass bottle has no toxic or side effect on the human body and does not produce environmental pollution; and at the same melting temperature, the clarifying time is shortened to half time of using arsenic and antimony oxides, and the production capacity is improved by 10 percent.

The invention provides a preparation method of a self-bonding and pre-decomposing glass batch. The method comprises the following steps of: pre-decomposing carbonate out of a kiln so as to obtain slaked lime and periclase, then mixing with other glass batch in a proper proportion in a mixing machinery, adding 8-20wt% of water during the mixing process, then pelletizing the mixed batch, standing for more than 72hours, and hardening by hydration to finally obtain the pelletized glass batch with a certain strength. According to the preparation method, the decomposing process of the carbonate is finished out of the kiln, thus the heat consumption can be greatly reduced; the lower limit of the grain size of the raw material is not required, and thus the resource can be used furthest; the cost of the raw material is reduced by adopting the light soda ash; and the pelletizing of the glass batch can be achieved without using an external bonding agent. Therefore, the preparation method has the advantages that the melting rate is improved, the melting temperature is reduced, the melting efficiency is high, and the like.

The invention provides a sludge scraper for a clarifier, which comprises a bracket, a cylinder body, a flow guide device, a sloping plate, a sludge scraping machine and a reducing motor. The sludge water enters a first-stage flow guide cylinder through a sludge water inlet, is reflected and distributed by a first-stage reflecting plate to enter a second-stage flow guide cylinder and then reflected and distributed by a second-stage reflecting plate, and, by the same way, is distributed by a last-stage reflecting plate to enter the cylinder body. The flow velocity of the sludge water at the sludge water inlet is set to allow the sludge water passing through the last-stage reflecting plate to just reach the farthest edge of the cylinder body, so that the degree of turbulence caused by the incoming water is reduced to the lowest. The sloping plate is arranged inside the cylinder body to allow the upward flow to move up along the surface of the sloping plate, so that on the one hand, the sloping plate serves as an extra flow guide device which can reduce the turbulence problem, and on the other hand, the ash settles down on the surface of the sloping plate, which reduces the settlement distance and shortens the clarification time.

The invention discloses an arsenic-free glass bottle, which solves the problems that the conventional food packing glass is not favorable for human health and environmental protection and cannot meet the national specified standards due to higher arsenic and antimony dissolution. The arsenic-free glass bottle is prepared from raw materials in part by weight: 100 parts of quartz sand, 6 to 18 parts of lithium (or sodium or potassium) feldspar, 24 to 38 parts of calcite, 0 to 40 parts of dolomite, 2 to 6 parts of sodium nitrate, 0 to 4.4 parts of fluorite, 0 to 6 parts of sodium fluosilicate, 30 to 40 parts of soda ash, 0.2 to 0.4 part of sodium sulfate, 0.6 to 1.0 part of calcium sulfate and 0.2 to 0.4 part of cerium oxide. The components are mixed uniformly, melted, shaped and annealed to form the arsenic-free glass bottle according to a conventional glass bottle manufacturing method. The arsenic content of the glass bottle is far lower than the national specified dissolution admitted amount, has no toxic or side effect on the human body, and does not produce environmental pollution; and at the same melting temperature, the settling time is shortened to half of time used by using arsenic and antimony oxides, and the production capacity is improved by about 10 percent.

The invention provides package printing ink which is prepared from the following raw materials in percentage by weight: 15-25% of LX-2 resin, 10-15% of acrylic acid, 15-20% of deionized water, 1-5% of paraffin, 5-10% of butyl acrylate, 10-15% of ammonia water, 2-5% of urea, 1-5% of a gelatin solution, 1-5% of glycerinum, 2-5% of a defoamer, 1-5% of titanium dioxide, 10-15% of D3 resin and 10-20% of a solvent. The invention provides the package printing ink which has the characteristic of environment protection, and toxic and harmful substances which are harmful to health and pollute the environment are prevented from being volatilized.

The invention provides a method capable of accelerating clarification and impurity removal of a molten potassium nitrate solution. The method comprises the following steps: 1) selecting potassium nitrate, potassium carbonate, alpha-phase silica, beta-phase alumina and antimonous oxide; 2) heating potassium nitrate to a temperature above melting temperature so as to melt potassium nitrate; 3) adding potassium carbonate and antimonous oxide into the fused potassium nitrate molten salt and carrying out stirring; 4) adding alpha-phase silica and beta-phase alumina into the molten salt prepared in the step 3) and carrying out stirring; and 5) subjecting the molten salt to heat preservation and standing for more than 10 hours, wherein tempering can be carried out upon clarification of the solution. The additive provided by the invention can rapidly remove harmful impurities in sylvite, effectively shortens clarification time of the potassium nitrate molten salt, reduces the ion concentrations of harmful impurities in the potassium nitrate molten salt, improves surface stress, stress layer depth and bending strength of chemically-toughened glass and lowers production cost.

The invention discloses an arsenic-free glass bottle. The objective of the invention is to overcome the problem that the dissolving-out amounts of arsenic and antimony in conventional glass for food package are high and cannot reach state-specified standard, which is unfavorable for human health and environmental protection. The arsenic-free glass bottle is prepared from the following raw materials by weight: 51 to 63 parts of quartz sand, 3 to 9 parts of lithium (or sodium and potassium) feldspar, 12 to 19 parts of calcite, 0 to 20 parts of dolomite, 1 to 3 parts of sodium nitrate, 0 to 2.2 parts of fluorite, 0 to 3 parts of sodium fluosilicate, 15 to 21 parts of sodium carbonate, 0.1 to 0.5 part of sodium sulfate, 0.3 to 1 part of calcium sulfate and 0.1 to 0.5 part of cerium oxide. Theabove raw materials are uniformly mixed; and then uniform mixing, melting, shaping and annealing are successively carried out according to conventional manufacturing methods for glass bottles so as toprepare the arsenic-free glass bottle. The arsenic content of the arsenic-free glass bottle is far lower than an allowable dissolving-out amount prescribed in national standard, so the arsenic-free glass bottle is free of toxic and side effect to human beings and does not produce environmental pollution. Under same melting temperature, the clarification time of the arsenic-free glass bottle is 1/2 the clarification time of glass using arsenic antimony oxide, and production capability is improved by 10% or so.

An embodiment of the invention discloses compound enzyme, a preparation method thereof and an application of the compound enzyme. The compound enzyme comprises, by weight, 12-18 parts of cellobiase, 4-8 parts of xylanase, 8-12 parts of cellulose, 8-12 parts of pectinase, 8-12 parts of glycerin, 3-7 parts of sodium chloride and 38-50 parts of water. The compound enzyme can crack cellulose, hemi-cellulose and cell walls of groundsel, release of effective components of the groundsel is facilitated, viscous materials such as xylan, beta-glucan and pectin are hydrolyzed, viscosity of the materialsis reduced, effective components are separated out, settling time is shortened, and the yield of the effective components of the groundsel is effectively improved.

The invention provides a neutralization device for preparation of a vanadium catalyst for EPDM rubber. The neutralization device comprises an alkalization reaction kettle, a filtering basin and a neutralization kettle sequentially from top to bottom, wherein the bottom of the alkalization reaction kettle is connected with the filtering basin through a pipeline, a drainage pipe for draining a vanadium catalyst purified liquid is mounted on the side surface of the filtering basin and connected with the neutralization kettle, and a bracket is mounted on the side surface of a main reaction kettle body; stirring paddles are mounted in the alkalization reaction kettle and the neutralization kettle and in drive connection with a variable-frequency servo motor, a vanadium-containing material feeding pipe and an alkali liquor injection pipe are mounted on the alkalization reaction kettle, and an acid liquor injection pipe is mounted at the top of the neutralization kettle; mass meters and delivery valves, which are electrically connected with a PLC, are arranged in the vanadium-containing material feeding pipe, the alkali liquor injection pipe and the acid liquor injection pipe; temperature sensors and PH detectors, which are connected with the PLC, are arranged in the main reaction kettle body and the neutralization kettle. The neutralization device for preparation of the vanadium catalyst for the EPDM rubber has the following beneficial effects: the device is simple in structure, energy-saving and environmentally friendly, materials are quantified accurately, and catalyst yield is higher.

The invention belongs to the technical field of fruit and vegetable processing, and particularly relates to a processing method of cucumber water. The method comprises the following steps of (1) performing selection: selecting cucumbers which are crisp and tender in tissue, fresh in pulp quality and free of mechanical damage; (2) performing cleaning: washing the cucumbers selected in the step (1), and draining water; (3) performing crushing and squeezing: cutting the drained cucumbers into blocks, performing pulping by using a crusher, and performing squeezing to obtain juice, so as to obtain cucumber normal juice; (4) performing clarifying: adding a clarifying agent, and performing settling; (5) performing filtering: filtering a supernate obtained in the step (4) to obtain clarified cucumber water; and (6) performing sterilization: performing sterilization treatment on the cucumber water by adopting a UHT sterilization method. The method has the beneficial effects that (1) the produced cucumber water is clear and transparent, and the process is simple, low in cost, safe and reliable; and (2) the heating frequency is low, and the heating time is short, so that the color, aroma components and various nutritional components of natural cucumbers are reserved to the greatest extent.

The invention relates to a grape-juice clarification pot detecting clarification automatically, which can view the forming and forming time of deposit, operator deciding the separation time of clarification juice by formed deposit, optimizing the separation time and avoid the mix of clarified grape-juice with deposit easily appearing when the liquid level of clarified juice and deposit is close to interface. The invention contains tank, said tank being equipped with inspection window, which is equipped with automatic turbidimetry device, the inspection window prepared with transparent material with definite intensity, the automatic turbidimetry device equipped with height setting machine and able to adjust height along clarification pot, the bottom of tank being pyramidal, the surface of barrel part equipped with heat exchanger keeping the low temperature of grape-juice by the flow of cooling medium.

The invention relates to the field of drinking water disinfection, in particular to a tap water disinfection method. The method includes the specific steps that Ophicalcitum is smashed and evenly mixed with tap water to be treated and amylose, krypton is introduced into the tap water for sterilization, the tap water is inoculated with amylase in the proportion of 2% for preliminary enzymolysis, the treated tap water is fed into a clarification tank for clarification, pressure-maintaining clarification is conducted for 3-4 hours with the pressure in a clarification room being 30-35 MPa, and finally the disinfected tap water is obtained. The tap water disinfection method is very simple; substances harmful to the human body are not generated in the disinfection process, in other words, secondary pollution to water is avoided; common viruses (rotavirus, the hepatitis virus, enterovirus and the like) in water can be efficiently and thoroughly killed.