40results about How to "Avoid quality fluctuations" patented technology

The invention discloses a lignin reinforcing filled butadiene-acrylonitrile rubber hose which mainly comprises a lignin reinforcing filled butadiene-acrylonitrile rubber blended elastomer, sulfur, zinc oxide, stearic acid, a accelerant, an anti-aging agent and the like. The lignin reinforcing filled butadiene-acrylonitrile rubber hose has the advantages of high mechanical strength, favorable oil resistance, high adhesion strength with framework materials, such as steel wires and the like; and the finished product has the characteristics of light weight, high pulse resisting capacity and long service life, and can reduce the material cost and the environmental pollution.

The invention provides a method for preparing two-component pre-mixed mortar by mixing twice, which comprises the following steps of: 1. weighing a cementing material, an additive, fly ash, silica ash and a mineral admixture in a certain proportion and mixing to obtain a cementing component; 2. Weighing weighing aggregates distributed by different grain sizes in a certain proportion and mixing to obtain an aggregate component; 3. Respectively respectively transporting the cementing component and the aggregate component in bulk or in bags to a construction site; performing secondary mixing in a sealed condition to mixing the cementing component and the aggregate component together to obtain the two-component pre-mixed mortar prepared by mixing twice, wherein the cementing material accounts for 15%-35%, the aggregate component accounts for 65%-85%, and water addition is determined by the type of the mortar. By the invention, quantity fluctuation of the mortar caused by the segregation and layering of the mortar in the processes of production, transportation, storage and use can be avoided, mismatching between consumption and transport loadage and between construction period and mortar coagulation time in the use process of the mortar can be solved thoroughly, and bulk utilization rate can be improved greatly.

The invention discloses a method for preparing methionine by adopting a weakly acidic cation exchange resin acidification methionine salt solution. The reaction temperature in acidification reaction is 30-90 DEG C, and the reaction pressure is 0.02-0.4MPa. The invention discloses equipment for preparing methionine from an acidification methionine salt. The equipment comprises a raw material buffer tank, a detergent buffer tank, a regenerant buffer tank, an adsorption column and a circulating pump, wherein the raw material buffer tank, the detergent buffer tank and the regenerant buffer tank are respectively communicated with the adsorption column through pipelines; a valve capable of independently controlling the communication relationship among the raw material buffer tank, the detergent buffer tank and the regenerant buffer tank is arranged on each pipeline; and a reactant outlet is formed on the adsorption column. Cationic resin in the method disclosed by the invention can be repeatedly utilized, high reaction efficiency can be achieved by controlling a reaction parameter, and the steps of adsorption column acidification, cleaning and cationic resin regeneration can be achieved just by controlling the switch in the overall working process of the equipment disclosed by the invention.

The invention relates to a method for papermaking, and particularly relates to a method and equipment for producing a paper hand towel form bagasse pulp as a main raw material. According to the method, firstly, 80%-90% of bagasse pulp and 10%-20% of softwood pulp are taken as raw materials, wherein the bagasse pulp is boiled by a sulfate process, washed and then bleached so as to obtain bleached bagasse pulp, and the softwood pulp adopts market pulp; secondly, an aquapulper, a high concentration grit separator and a double disc refiner are used; thirdly, a proper wet strength agent is adopted; fourthly, a crescent high speed toilet paper machine is adopted; fifthly, a low beating degree is adopted; sixthly, in the whole process from pulp preparation to paper rolling, automatic operation control with a DCS (distributed control system) is adopted, paper sheet quantification and moisture are monitored on line and regulated automatically by a QCS (quality control system); seventhly, a point-to-point embossing manner is adopted; eighthly, a high-speed rewinding and splitting machine is used. The produced paper hand towel has tensile strength and proper air permeability, and reaches high standards in strength, wet strength, water absorption, air permeability, flexibility and the like.

The invention relates to a method for thermal cutting, wherein a cutting gas is piped into a cutting nozzle and guided on to a work piece to be processed by means of the cutting nozzle. According to the invention the cutting gas is at least reduced in a periodically repetitive manner wherein the time in which the cutting gas is guided onto the work piece in an undiminished manner is shorter than half of a period. In addition the invention relates to a corresponding device with a valve.

The invention relates to a refining ladle flow diverter and a preparation method thereof. The flow diverter comprises a flow diverter main body. The flow diverter main body is a hollow cylindrical steel pipe with one end being sealed. Flow guiding holes and a flow guiding window are formed in the flow diverter main body. The refining ladle flow diverter is characterized in that the inner wall of the flow diverter main body is coated with a carbon layer; the flow guiding holes and the flow guiding window are sealed through flow diverter fusible slices; the opening end of the flow diverter main body is sealed through an opening end fusible slice; the positions, located at an water discharging opening and a seating brick part, in the flow diverter main body are filled with lower filling sand; the positions, located above the bottom of a seating brick bowl opening, in the flow diverter main body are filled with upper filling sand; and the upper filling sand and the lower filling sand are separated through an intermediate fusible slice. According to the flow diverter, operation of a using customer is simplified, the pouring rate is increased to 98% or above, and the using quality of a product is stable. Compared with traditional flow diversion sand, the problem of the quality fluctuation of the product is avoided, and market use is met.

The invention discloses a corn starch sugar production method which includes the steps: 1) liquidation; 2) primary centrifugal separation, sugar residue discharge, saccharification, refining and starch syrup preparation by concentrated clear liquid; 3) sugar residue washing; 4) secondary centrifugation; 5) deep sugar elimination; 6) sugar residue post-treatment. The yield and the quality of a starch sugar product can be improved, high-purity corn starch syrup is obtained, high-quality sugar residues can be obtained, the sugar residues are low in residual sugar content, low in water content andgood in quality stability, and waste of the sugar residues is turned into wealth.

The invention discloses a kiln which can enhance the sintering quality of a coloring material. The kiln comprises a kiln body and a kiln vehicle, wherein the kiln vehicle sequentially comprises a steel-plate layer, a refractory-brick layer, a perforated-brick layer, a flame-path backing-brick layer and a round sagger layer from bottom to top, wherein a plurality of flues which penetrate through the steel-plate layer are arranged in the steel-plate layer; ventilation holes which penetrate through a whole brick body are formed in a perforated brick; a plurality of round saggers are arranged in the round sagger layer, and a gap is arranged between the adjacent round saggers; a plurality of sagger flame paths are also uniformly arranged in the round sagger layer; the refractory-brick layer and the perforated-brick layer as well as the perforated-brick layer and the flame-path backing-brick layer are arranged in a staggered mode; gaps are arranged among brick bodies in the same brick-body layer. The coloring material is heated and sintered by utilizing the kiln, so that the temperature difference of all parts of the whole kiln is decreased to 5 DEG C from original 50 DEG C, the production quality is guaranteed, and the temperature increase is uniformly quickened; compared with the original sintering time, the whole sintering time of the coloring material is shortened by 10 to 20 percent; the energy-source consumption of the coloring material in the whole sintering process is reduced by 20 to 35 percent.

The invention relates to the technical field of binder-reducing concrete admixtures, and discloses a synergistic binder-reducing concrete admixture and a preparation method thereof. The synergistic binder-reducing concrete admixture comprises a polycarboxylic acid water reducer, a polycarboxylic acid slump retaining agent, a binder reducing agent, an air entraining agent, a defoaming agent, a water-retaining agent, a retarder, a pH regulator and water. The invention further provides the preparation method of the synergistic binder-reducing concrete admixture. The synergistic binder-reducing concrete has the double effects of reducing a binder and reducing water, and can play a role in dispersing a binding material in concrete to the greatest extent, so the binding material which only plays a filling role originally is fully hydrated, and the strength and the working performance of the concrete are improved; the problem that an admixture storage tank and a binder reducing agent storage tank need to be prepared at the same time in a mixing plant is solved, the problem that the quality of the mixing plant fluctuates due to inaccurate weighing of the binder reducing agent is solved, the mixing plant can well adapt to changes of various materials, and concrete quality fluctuation caused by the changes is avoided.

The invention relates to the technical field of building materials for road engineering and especially relates to a preparation method for an environment-friendly asphalt modifier. The preparation method for the environment-friendly asphalt modifier comprises the following steps: filling an asphalt modifier into a hot-melt packaging film and then sealing the package. The environment-friendly asphalt modifier prepared according to the preparation method is capable of solving the problems of environmental pollution, influence on construction efficiency and low environmental adaptability of modified asphalt of the present solid asphalt powder. The environment-friendly asphalt modifier is simply manufactured, is low in cost and has excellent modification effect, high adaptability and obvious environmental protection property.

The invention discloses an automation system for powder from a spray tower. The automation system for powder from the spray tower comprises a laser detection system, the spray tower, an air heating furnace and a micro processor. Laser detection equipment monitors the water content of the powder from the spray tower in real time; the micro processor judges whether the moisture content is within a preset threshold value range according to a detection result; when the moisture content is not within the preset threshold value range, the micro processor outputs a control instruction to adjust a workingenvironment of the air heating furnace or the spray tower, so that the moisture content of the powder can be kept within the preset threshold value range all the time. By the mode, the problem of quality fluctuation of a ceramic enterprise, which is caused by a water disqualification factor of the powder, is solved, so that the qualification rate of a product is increased, automatic control is realized, the employment rate is decreased, and the product production efficiency is also improved.

The invention discloses a 3D full-layer skin model, a culture medium for forming the 3D full-layer skin model and a preparation method of the 3D full-layer skin model. The culture medium comprises a protein preparation, and the protein preparation comprises the following components in percentage by mass: 0.1-99% of albumin, 0.1-99% of globulin and 0.1-99% of fibronectin. Serum is not needed in thegas-liquid phase process of preparing the 3D full-thickness skin model by combining the culture medium with pig type I collagen; the prepared 3D full-layer skin model is complete, the activity and the stability are remarkably improved, the application field of the type of model is expanded, and large-scale industrial production of the skin model is achieved.

The invention discloses a production process for reducing cross contamination of bagged mortar. The production process comprises the following steps of (1) a lifting and storing procedure; (2) a metering and conveying procedure; (3) a mixing procedure; (4) a material separation procedure; (6) a control system; and (7) a dust removal system. According to the production process, the problem of quality fluctuation caused by cross contamination when different varieties of bagged materials are produced on the same line can be solved; the problems that during collinear production of different varieties of products, material waste is caused by replacement of product flushing equipment, and the workload of waste digestion treatment is increased are solved; and the problems that when the products of different varieties are subjected to collinear production, the production efficiency is reduced due to replacement of the product flushing equipment, and accordingly productivity exertion is affected are solved.

The invention discloses equipment and a method for continuously producing a vulcanization accelerator CBS, and belongs to the field of chemical production. The system comprises an accelerator M bin, awater metering pump, a continuous mixing device, an M slurry metering pump, a cyclohexylamine metering pump, a hydrogen peroxide metering pump, a sodium hypochlorite metering pump, continuous reaction equipment and related pipelines; the continuous reaction equipment is provided with four reaction chambers, and each reaction chamber is provided with an independent stirring device; M slurry and cyclohexylamine are introduced into a first reaction chamber usingthe metering pumps, hydrogen peroxide is introduced into a first reaction chamber, a second reaction chamber and a third reaction chamber using the metering pump, and sodium hypochlorite is introduced into a fourth reaction chamber using the metering pump; a discharge overflow port is formed in the fourth reaction chamber; and a M slurry pipeline, a cyclohexylamine pipeline, a hydrogen peroxide pipeline and a sodium hypochlorite pipeline are all provided with flow regulating valve banks. The method is suitable for continuous production of the vulcanization accelerator CBS, automatic control can be achieved, the product quality is more stable, and the frequent operation process of intermittent production is avoided.

The invention relates to equipment for continuously producing accelerator TMTD and a method for continuously producing the accelerator TMTD. The equipment comprises a supergravity reactor, a washing device and a drying device, wherein a feeding port and an exhaust port are formed in the top of the supergravity reactor, and the feeding port is connected with a dimethylamine metering pump, a carbon disulfide metering pump and an ethanol metering pump through pipelines; a discharge hole is formed in the bottom of the supergravity reactor, and a hydrogen peroxide inlet is also formed between the top and the bottom of the supergravity reactor; the washing device comprises a vacuum belt filter provided with a feeding port, a discharging port and a mother liquor outlet, the feeding port communicates with the discharging port, and the vacuum belt filter is connected with a washing pipe; and the drying device is provided with a drying inlet and a drying outlet, the drying inlet is connected to the discharging port, and an automatic temperature controller is installed in the drying device. The equipment and the method of the invention overcome the defects that salt-containing wastewater is generated, a reaction period is long, the labor efficiency of intermittent production is low, the quality of products in batches is different and the like in the prior art.

The invention provides a carry-over cocoon fresh-keeping technology used after automatic reeling machine stoppage. According to the technology, after automatic reeling machine stoppage, silk reeling water in a silk reeling groove is dried; glacial acetic acid and water are mixed to obtain an acetic acid aqueous solution; the obtained acetic acid aqueous solution is uniformly sprayed on the residual carry-over cocoon in the silk reeling groove by a sprayer, the residual carry-over cocoon is naturally soaked for 15-20 minutes; and cold water is slowly added in the silk reeling groove until the silk reeling groove is full. The technology does not require reel-up operation after stoppage, so that output is increased, consumption is reduced, quality fluctuation due to reel-up and cocoon feeding can be avoided, quality stabilization is ensured, long fresh-keeping time can be provided for the carry-over cocoon, and the carry-over cocoon cannot generate deterioration and corruption in 60 hours.

The invention provides a novel storage device. The novel storage device comprises a tank. The upper portion of the tank is provided with a feed port. The lower portion of the tank is provided with a discharge port. A guide plate is arranged on the feed port. The guide plate is arranged along the side edge of the feed port. A storage cavity is arranged below the feed port. Heat insulation plates are arranged between the tank and the storage cavity. A supporting plate is arranged between the heat insulation plates. The heat insulation plates are attached to the two sides of the supporting plate.Opposite opening plates are arranged below the discharge port. The feed port is arranged on the upper portion of the tank so that materials can be fed into the tank conveniently. The guide plate is arranged at the feed port, so that the materials are fed into the tank more uniformly and reasonably, and the using effect of the storage device is ensured. The heat insulation plates are arranged in the tank and can keep the internal temperature of the tank constant to a certain extent, and a certain quality fluctuation of the materials in the tank due to temperature variation is avoided.