52results about How to "Low degree of fragmentation" patented technology

The invention discloses a production process for a spicy duck neck. The spicy duck neck is prepared from a frozen duck neck, pectin, Chinese prickly ash, star anise, cassia bark, common fennel fruit, clove, licorice, villous amomum fruit, salt, cooking wine, sodium nitrite, scalded duck skeleton, ginger, scallion, plant oil, Capsicum annuum, green Chinese prickly ash, alpinia officinarum hance, myrcia, dahurian angelica root, tsaoko fruit, cardamom, netmeg, kaempferia galamga, dried orange peel, grosvenor momordica fruit, minced ginger, radish seed, cumin, pepper, spicy essential oil, Chinese prickly ash essential oil, etc. through unfreezing, preprocessing, dry salting, marinating and cooking, wet salting, baking and material blending. According to the invention, spicy taste infiltrates the bone of the duck neck, so the taste of the spicy duck neck is improved and the spicy duck neck is more chewy; and as the comfort level of taste is improved, more consumers are allowed to accept spicy taste, and the fragmentation degree of the duck neck is reduced.

A threshed and re-dried tobacco leaf preprocessing technique based on tobacco leaf raw material characteristics comprises the process steps of vacuum dampening, primary hot-air leaf wetting and secondary hot-air leaf wetting and is characterized in that the adhesion and moisture of tobacco leaf raw materials are firstly analyzed and tested for classification before the process steps, and preprocessing process technique parameters of different categories of tobacco leaf raw materials are determined according to adhesion and moisture detection results of tobacco leaves. By adopting the technique, the moisture uniformity of different categories of tobacco leaf raw materials in a tobacco leaf threshing and re-drying preprocessing process is improved, caking phenomena of high-adhesion and high-moisture-content threshed and re-dried tobacco leaf raw materials in the threshing and re-drying preprocessing process are decreased, the breaking degrees of different categories of tobacco leaf raw materials in the threshing process are reduced, and the economic efficiency of threshing and re-drying processing is improved on the basis that the processing quality of threshing and re-drying is ensured.

The invention relates to a pressure relief method aimed at strata behaviors of gob side entries of fully mechanized caving faces and solves the problem of the absence of effective methods for strata behaviors of mines at present. The method comprises building a pressure relief groove which is 500mm to 550mm deep and 400mm to 450mm wide on a center line of a gob side entry bottom plate, and building at least two rows of pressure relief holes which are 13mm to 17mm deep and incline upwards by 4 degrees to 6 degrees from top to bottom on two sides of the gob side entry, wherein the two adjacent rows of the pressure relief holes are arranged in a triangular mode. According to the pressure relief method, the stress distribution of gob side entries is transferred in advance through pressure relief technologies of building of the pressure relief groove and the pressure relief holes and the like, strata behaviors of gob side entries are weakened, the passivity is converted into the initiative, the problem is solved fundamentally from the source, and the mine pressure is controlled.

The invention discloses a low shearing plunger type throttling valve used for oil production gathering and transporting. Based on a rotational flow agglomeration and unit mass energy dissipation rate control technology, orifices of a valve cage are designed to be in the tangential direction, a rotational flow chamber which is converged firstly and expanded afterwards is connected behind the orifices, the basic function of flow and pressure adjustment can be achieved on the plunger type throttling valve, meanwhile, the velocity gradient and the turbulence energy dissipation rate in a flow field are reduced, the shearing force of the orifices for fluid is reduced, the liquid drop breaking degree is lowered, and the subsequent oil water separation difficulty is lowered.

The invention relates to an extraction method for a bedrock coast line, comprising: based on an object-oriented method, performing multi-scale segmentation on remote sensing image data from which thebedrock coast line is going to be extracted; establishing operating characteristics according to the remote sensing image data after the multi-scale segmentation; establishing a membership functionaccording to the established operating characteristics; setting adiscrimination interval of the membership function for discriminating seawater by using a fuzzy rule, and assigning the membership function by using the discrimination interval; classifying the assigned membership function, and extracting a seawater object to obtain the bedrock coast line. The invention further relates to an extractionsystem for a bedrock coast line. The method and the system have strong global search capability and robustness, can better distinguish, extract and amplify the characteristics useful for classification, and are clear in classification result contour and low in degree of fragmentation of classification results.

The invention provides a new process for improving quality of black tea. The process comprises the steps of fresh leave selecting, sun drying, rocking, cooling, dehydration, rolling, fermenting, drying, aroma extracting and the like. The black tea product prepared by adopting the process is attractive in appearance and is sweet and mellow after being drunk, and the astringent taste is lightened. The process can effectively improve the appearance quality of the black tea (especially flowery Congou black tea); in the condition that aroma forming and water loss are out-of-step, a method of rocking and then low-temperature quick dehydration is adopted, so that the aroma of the tea leaves is kept, only partial moisture of the fresh leaves is removed, no fracture is caused during rolling, and therefore, development of subsequent process is benefited. The process can effectively promote the taste of the black tea, and after low-temperature quick dehydration, low-pressure long-time rolling is adopted, so that the crushing degree of leave cells is reduced, the crushing rate is not affected, and the taste of the product is remarkably improved. Meanwhile, dissolving of astringent substances in the tea leaves is reduced.

The invention aims to solve the actual engineering construction problems that the explosive charging process is complex, time is consumed and labor is consumed, provides a non-coupling pre-splitting explosive charging device and a using method, and belongs to the technical field of surface blasting engineering. The device is composed of a variable-diameter non-coupling pre-splitting explosive charging barrel and an umbrella-shaped explosive charging device; and the umbrella-shaped explosive charging device is located on the upper portion of the variable-diameter non-coupling pre-splitting explosive charging barrel. According to the device, the length of the explosive charging barrel can be flexibly and fast changed according to the on-site hole depth changing length and the non-coupling coefficient, and the requirement that the explosive charging non-coupling coefficient is sequentially decreased from bottom to top in the whole explosive charging device is met; the device can enter blast holes of different diameters and is automatically opened according to the size of the blast holes, and explosives can be conveniently injected into an explosive charging vehicle; and blasting crushing regions and the blasting tight bottom can be reduced, and side walls are effectively protected.

The invention discloses a preparation method of high-quality spherical powder. The metal powder comprises a metal simple substance or / and a metal alloy capable of absorbing hydrogen and dehydrogenating. The method comprises the steps that metal elementary substance or alloy powder with the hydrogenation degree of 10%-100% is introduced into a laser beam at the powder feeding airflow of 2-10 L / min; in the inert gas atmosphere, by controlling laser power and powder physical properties, common coupling of a laser beam focusing spot and a powder beam convergent point is achieved, and meanwhile powder feeding airflow and protection airflow are regulated and controlled to be matched; under the action of laser energy, the metal elementary substance or alloy powder subjected to hydrogen absorption and hydrogenation is heated to expand, break and dehydrogenate and is quickly melted to form fine molten drops, and the molten drops are spheroidized under the action of surface tension, separated from a heating area and then quickly cooled and solidified to form spherical powder. The spherical powder obtained through the method is good in spheroidizing effect, the one-time spheroidizing rate of the powder exceeds 80%, and the powder is good in sphericity degree, concentrated in particle size distribution, high in fine powder yield and few in impurities.

The invention discloses tin-carbon nanotube negative pole material used for a lithium ion battery and the preparation method thereof; wherein, tin is adopted as active substance, and carbon nanotube of network structure is embedded in the tin layer in a network structure. In the tin-carbon nanotube negative pole material, because a great amount of the carbon nanotube is embedded in the tin coating layer, during the charging and discharging cyclical process of the working electrode made of negative pole material, an embedding and disengaging channel for the lithium ion is provided through the network structure established by the carbon nanotube in the tin active substance; simultaneously, the carbon nanotube plays the strengthening and toughening effect, the breaking degree of the electrode because the volume changing is reduced, and the circulation performance of the electrode is improved. The process of the invention is simple, the operation is simple and convenient, the invention provides conditions for industrial production, and has remarkable practical value and economic benefit.

The invention provides a new process for improving quality of black tea. The process comprises the steps of fresh leave selecting, sun drying, rocking, cooling, dehydration, rolling, fermenting, drying, aroma extracting and the like. The black tea product prepared by adopting the process is attractive in appearance and is sweet and mellow after being drunk, and the astringent taste is lightened. The process can effectively improve the appearance quality of the black tea (especially flowery Congou black tea); in the condition that aroma forming and water loss are out-of-step, a method of rocking and then low-temperature quick dehydration is adopted, so that the aroma of the tea leaves is kept, only partial moisture of the fresh leaves is removed, no fracture is caused during rolling, and therefore, development of subsequent process is benefited. The process can effectively promote the taste of the black tea, and after low-temperature quick dehydration, low-pressure long-time rolling is adopted, so that the crushing degree of leave cells is reduced, the crushing rate is not affected, and the taste of the product is remarkably improved. Meanwhile, dissolving of astringent substances in the tea leaves is reduced.

The invention relates to the technical field of pharmaceutics and discloses a metoprolol slow-release tablet and a preparation method thereof. The preparation method provided by the invention comprises the following steps: preparing a metoprolol active drug and a first plastic material into a pastille pill; obtaining slow-release pastille pill by coating a slow-release layer; and tabletting together with a tablet agent containing at least 90wt% of second plastic material. During the process of preparing the metoprolol slow-release tablet according to the invention, the specific material is added to the active drug and the tablet accessory, so that the crushing degree of the slow-release pastille pill is relieved, the stable releasing of the active drug of the slow-release tablet is ensured and the sudden releasing phenomenon of the drug is avoided.

The invention relates to an extrusion type walnut shell crusher capable of adjusting extrusion distances. The extrusion type walnut shell crusher comprises a base, a fixed clamping plate and a first mobile clamping plate which are oppositely arranged on the base, and a driving mechanism used for driving the first mobile clamping plate. The extrusion type walnut shell crusher further comprises a distance limiting device, and the distance limiting device comprises a triggering mechanism and a fixed distance mechanism, wherein the triggering mechanism is used for triggering the fixed distance mechanism to work after the first mobile clamping plate is in contact with a walnut shell, and the fixed distance mechanism makes the first mobile clamping plate advance a preset fixed distance under control of the driving mechanism, so that the crushing degree of a walnut kernel is small after the walnut shell is crushed, the loss of the walnut kernel is reduced, and people eating walnuts become happier.

The invention discloses a massive four-stage moving bed carbonization furnace in a hydrogen-rich environment and a carbonization method thereof. The dry distillation furnace includes a drying preheating section, a sealing section, a dry distillation section, and a cooling section arranged sequentially from top to bottom. The upper part of the drying preheating section is provided with a feed port and the lower part is provided with an air inlet, and the upper part is far away from the air inlet end. There is an exhaust port, and the sealing section is connected to the upper drying and preheating section and the lower retort section through the star feeder installed inside. The oil and gas outlet, the cooling section is connected with the dry distillation section, the bottom of the cooling section is provided with a coke discharge port to connect with the coke discharge system and the lower part is provided with a cold gas inlet. The dry distillation method includes the steps of drying and preheating, sealing, dry distillation and cooling. The invention has the characteristics of low power consumption, high energy utilization rate, high oil production rate, good oil quality, less oil and gas dust, high gas calorific value and high resource utilization rate.

A threshed and re-dried tobacco leaf preprocessing technique based on tobacco leaf raw material characteristics comprises the process steps of vacuum dampening, primary hot-air leaf wetting and secondary hot-air leaf wetting and is characterized in that the adhesion and moisture of tobacco leaf raw materials are firstly analyzed and tested for classification before the process steps, and preprocessing process technique parameters of different categories of tobacco leaf raw materials are determined according to adhesion and moisture detection results of tobacco leaves. By adopting the technique, the moisture uniformity of different categories of tobacco leaf raw materials in a tobacco leaf threshing and re-drying preprocessing process is improved, caking phenomena of high-adhesion and high-moisture-content threshed and re-dried tobacco leaf raw materials in the threshing and re-drying preprocessing process are decreased, the breaking degrees of different categories of tobacco leaf raw materials in the threshing process are reduced, and the economic efficiency of threshing and re-drying processing is improved on the basis that the processing quality of threshing and re-drying is ensured.

A method for eliminating mottled defects on the surface of a hot-rolled steel plate, relating to a method for treating the surface of a steel plate, the method comprising the following process: heating the slab to 1200-1250°C, and then descaling with high-pressure water, and the descaling temperature is 1100°C ~1200°C, the water pressure is required to be at least 16MPa during descaling; the steel plate after descaling is subjected to rough rolling, and the rough rolling temperature is 1100~1200°C; the rough rolled steel plate is subjected to finish rolling, and the finishing rolling temperature is 900~990℃, the speed of the roller table is 1.3~1.8m / s; after finishing rolling, laminar flow cooling is adopted for water cooling, and segmental cooling is adopted, the water ratio is 2.2~2.6; the cooling water volume is 150~250m³ / h; the reddening temperature of the steel plate after cooling is 670~750°C; the water-cooled steel plate is cooled in the air on the cooling bed. The method makes it easy to remove the iron oxide scale on the surface of the steel plate in the subsequent shot blasting process, thereby eliminating the mottled defect on the surface of the steel plate after shot blasting.

The invention aims to solve the actual engineering construction problems that the explosive charging process is complex, time is consumed and labor is consumed, provides a non-coupling pre-splitting explosive charging device and a using method, and belongs to the technical field of surface blasting engineering. The device is composed of a variable-diameter non-coupling pre-splitting explosive charging barrel and an umbrella-shaped explosive charging device; and the umbrella-shaped explosive charging device is located on the upper portion of the variable-diameter non-coupling pre-splitting explosive charging barrel. According to the device, the length of the explosive charging barrel can be flexibly and fast changed according to the on-site hole depth changing length and the non-coupling coefficient, and the requirement that the explosive charging non-coupling coefficient is sequentially decreased from bottom to top in the whole explosive charging device is met; the device can enter blast holes of different diameters and is automatically opened according to the size of the blast holes, and explosives can be conveniently injected into an explosive charging vehicle; and blasting crushing regions and the blasting tight bottom can be reduced, and side walls are effectively protected.