43results about How to "Stable production conditions" patented technology

The invention provides a preparation method and a preparation device for a synthesis ammonia prereduction catalyst. The preparation method comprises the following steps: feeding a synthesis ammonia Fe catalyst into a reduction tower, and introducing mixed hydrogen and nitrogen; then heating at a heating rate of 30-40 DEG C / h, and performing reduction reaction when the temperature raises to 365-380 DEG C; after the reduction reaction is over, discharging the mixed hydrogen and nitrogen out of the reduction tower; when the temperature is reduced to be not higher than 50 DEG C and normal pressure is achieved, introducing oxygen for passivating, wherein the pressure during the passivation process is kept between 0.018MPa and 0.02MPa; and after the temperature is reduced to be not higher than 46 DEG C, finishing passivation, thereby obtaining the synthesis ammonia prereduction catalyst. In the preparation device, in-parallel double towers are adopted for the reduction tower, a passivation groove is omitted, heating reduction and passivation are performed in the reduction tower, and a method of negative pressure extraction by use of a circulating fan is adopted during the passivation process, so that the effective production time is obviously increased, the reducing capacity is greatly improved, the operation difficulty is simplified, power consumption is reduced, and the air inflow stability of a system is ensured.

The invention relates to a MCC extremely fine coaxial cable production line which is characterized in that the MCC extremely fine coaxial cable production line comprises a wire releasing device (1), a first diameter measuring instrument (2), a first tension meter (3), a preheater (4), an extruder (5), a cooling device (6), a second diameter measuring instrument (7), a second tension meter (8), an electric spark detector (9), a concave and convex extent meter (10), a longitudinal wire storage device (11), a lateral wire storage device (12), and a wire take-up device (13), the adaptive wire release is realized through the wire releasing device (1), the production stability is improved, and an extruded product is cooled well through the cooling device (6). The MCC extremely fine coaxial cable production line and a production method thereof have the advantages of a stable production working condition and good extrusion quality.

The invention discloses a method for producing sodium chromate and co-producing chrome cast iron by a three-stage process through un-calcium roasting, aiming at solving the problems of low roasting efficiency and high energy consumption in the existing method for producing chromic salt by un-calcium roasting. The method for producing sodium chromate by the three-stage process through un-calcium roasting comprises the following steps of: A, mixing roasting material in a first stage, mixing chromite and sodium carbonate in proportion; B, roasting in the first stage, putting the mixed material in the first stage into a rotary kiln and performing oxidizing roasting; C, leaching and filtering in the first stage; D, performing second-stage roasting technology; and E, performing third-stage roasting technology. The leaching of clinker after roasting for three times is same as the roasting leaching in the first time and the second time, the grinding leaching is performed to the clinker by a wet grinding ball mill, the clinker is filtered by a belt type filter and the filtered chromium slag by three-stage roasting is obtained by filtering of the belt type filter, the filter liquor is sodium chromate alkali solution. Compared with the traditional un-calcium roasting technology, the method in the invention adopts the three-stage process un-calcium roasting technology and effectively reduces the mine consumption and the alkali consumption and has the energy-saving and emission-reducing effect.

The invention relates to an unwinding self-adaptive coaxial cable unwinding device which is characterized by comprising a rack (1.1), a motor (1.2), an unwinding shaft (1.3), a locking wheel (1.4), a fixed plate (1.6), a supporting base (1.7), a supporting frame (1.8), a floating rod (1.9), a cam (1.10), a supporting rod (1.11), a vertical bracket (1.12), a stop rod (1.13), an adjusting frame fixing base (1.14), an adjusting frame (1.15), a spring pedestal (1.18), a floating rod spring (1.19), a floating rod first guide wheel (1.20), a floating rod second guide wheel (1.21), a locking rope (1.24), a supporting rod guide wheel (1.25) and a stop block (1.26). The unwinding self-adaptive coaxial cable unwinding device and an unwinding method thereof have the advantages of being stable in production condition and great in product quality.

The invention relates to a high quality coaxial cable extrusion production assembly line which is characterized in that the high quality coaxial cable extrusion production assembly line comprises a wire releasing device (1), a first diameter measuring instrument (2), a first tension meter (3), a preheater (4), an extruder (5), a cooling device (6), a second diameter measuring instrument (7), a second tension meter (8), an electric spark detector (9), a concave and convex extent meter (10), a longitudinal wire storage device (11), a lateral wire storage device (12), and a wire take-up device (13), and an extruded product is cooled well through the cooling device (6). The high quality coaxial cable extrusion production assembly line and a production method thereof have the advantages of stable production working condition and good extrusion quality.

The invention relates to the field of regeneration of anthraquinone degradation products, and discloses a catalyst, a preparation method thereof and a regeneration method of anthraquinone degradation products. The preparation method of the catalyst comprises the following steps: S1, mixing the quick-release powder, the alkaline earth metal compound and an optional extrusion aid to obtain the first dry material; S2, mixing the acid solution and the silicon source to obtain the first Liquid; S3, mixing the first dry material with the first liquid, followed by kneading, extruding, drying and roasting. The preparation method of the catalyst is simple and low in cost, and can effectively improve the regeneration efficiency of anthraquinone degradation products in the hydrogen peroxide working solution containing o-methylcyclohexyl acetate, significantly reduce the accumulation of anthraquinone degradation products in the working solution and improve the working efficiency. The content of effective anthraquinone in the liquid is beneficial to improve production efficiency.

The invention relates to an RF coaxial cable cooling method, which is characterized in that in the whole cooling process, cooling water flows out from a water supply port at the right upper part of a first magnetic mechanism, the cooling water flowing out from the water supply port falls onto a rightward impeller plate of the first magnetic mechanism to drive a first rotating shaft to rotate clockwise, at the moment, due to changes of magnetic lines of magnets, cooling water in a cooling tank flows leftwards from a cooling area to a feeding area and returns to a water storage tank from a water outlet through a water supply pipeline, and then the cooling water in the water storage tank is supplied through the water supply pipeline and falls down from the water supply port. The RF coaxial cable cooling method has the advantages of being stable in production working condition and good in extrusion molding quality.

The invention relates to a high quality coaxial cable production line. The high quality coaxial cable production line is characterized in that the high quality coaxial cable production line comprises a wire releasing device (1), a first diameter measuring instrument (2), a first tension meter (3), a preheater (4), an extruder (5), a cooling device (6), a second diameter measuring instrument (7), a second tension meter (8), an electric spark detector (9), a concave and convex extent meter (10), a longitudinal wire storage device (11), a lateral wire storage device (12), and a wire take-up device (13), the adaptive wire release is realized through the wire releasing device (1), the production stability is improved, and an extruded product is cooled well through the cooling device (6). The high quality coaxial cable production line and a production method thereof have the advantages of a stable production working condition and good extrusion quality.

The present invention relates to an RF radio frequency coaxial cable production line, which is characterized in that it includes a pay-off device (1), a first diameter measuring instrument (2), a first tension meter (3), a preheater (4), an extruder Plastic machine (5), cooling device (6), second diameter measuring instrument (7), second tension meter (8), electric spark detector (9), concave-convex meter (10), vertical wire storage device (11 ), the horizontal wire storage device (12) and the wire take-up device (13), the self-adaptive wire release is realized through the wire release device (1), and the production stability is improved, and the extruded product is better processed through the cooling device (6). cooling. The RF coaxial cable production line and the production method thereof of the present invention have the advantages of stable production conditions and good extrusion quality.

The invention relates to a cooling device of an extremely-slim coaxial cable. The cooling device is characterized by comprising a cooling device rack (6.1), wherein a horizontal cooling groove (6.2) is formed in an upper half segment of the cooling device rack (6.1), a water storage box (6.3) is formed in a lower half segment of the cooling device rack (6.1), the cooling groove (6.2) comprises a feeding region (6.5) at a left end, a cooling region (6.6) at an intermediate segment and a drying region (6.7) at a right end, a first magnetic mechanism (6.25) is arranged at a right segment of the cooling region (6.6) and is longitudinally arranged, and a third magnetic mechanism (6.28) is arranged at a left segment of the cooling region (6.6) and is longitudinally arranged. The cooling device and the cooling method of the extremely-slim coaxial cable have the advantages of stable production working condition and relatively good plastic extruding quality.

The invention relates to an extremely fine coaxial cable extrusion production assembly line which is characterized in that the extremely fine coaxial cable extrusion production assembly line comprises a wire releasing device (1), a first diameter measuring instrument (2), a first tension meter (3), a preheater (4), an extruder (5), a cooling device (6), a second diameter measuring instrument (7), a second tension meter (8), an electric spark detector (9), a concave and convex extent meter (10), a longitudinal wire storage device (11), a lateral wire storage device (12), and a wire take-up device (13), and an extruded product is cooled well through the cooling device (6). The extremely fine coaxial cable extrusion production assembly line and a production method thereof have the advantages of a stable production working condition and good extrusion quality.

The present invention relates to a trolley replacing device and a trolley replacing method, which belong to the technical field of the replacement of a trolley of a sintering machine or a belt type roasting machine in the metallurgical industry. The trolley replacing device comprises a trolley, an inner straight rail, an inner curved rail, an outer straight rail, an outer curved rail, a main driving wheel, a trolley moving-out rail, and a trolley moving-in rail, wherein the outer curved rail arranged on both sides of the main driving wheel is divided into a lower movable outer curved rail, a middle fixed outer curved rail, and an upper movable outer curved rail; the lower movable outer curved rail is outwardly separated from the middle fixed outer curved rail and a lower outer straight rail on both sides vertical to the operating direction of the trolley, or is connected with the middle fixed outer curved rail and the lower outer straight rail; and one end of the upper movable outer curved rail is connected with one end of the trolley moving-in rail. The present invention enables the sintering machine or the belt type roasting machine to replace the trolley without stalling, and no additional time to replace the trolley is needed, thus increasing the production efficiency; because there are no operations such as stalling the sintering machine or the belt type roasting machine and reducing or stopping the wind, the production condition will not be changed and will be stable relatively; and because of the stable production condition, the production pass rate and the tumbler index will not be reduced.

The invention provides a paper sheet stacking height compressing mechanism and a paper sheet stacking height control method for paper products. The mechanism mainly comprises at least one pressurizer and at least one lifter; the lifter relatively adjusts the upper and lower positions of the pressurizer according to the paper sheet stacking height of the paper products; after being adjusted in position, the pressurizer sequentially utilizes a press plate to compress all paper products, so the paper sheet stacking height of all the paper products can be compressed to a preset height, namely every produced paper product and the paper sheet height stacking height of the paper product can be homogenized, so the production condition of the paper products can be stabilized, the production quality of the paper products is improved, and the fault chance of production equipment is reduced.

The invention relates to an unwinding self-adaptive production assembly line of a coaxial cable. The production assembly line is characterized by comprising an unwinding device (1), a first diameter measurement gauge (2), a first tension meter (3), a preheater (4), an plastic extruding machine (5), a cooling device (6), a second diameter measurement gauge (8), an electric spark detector (9), a concave-convex meter (10), a vertical wire storage device (11), a transverse wire storage device (12) and a winding device (13), wherein self-adaptive unwinding is achieved by the unwinding device (1), and the production stability is improved. The unwinding self-adaptive production assembly line of the coaxial cable and a production method of the coaxial cable have the advantages of stable production working condition and relatively good product quality.

The invention relates to an MCC very-fine coaxial cable cooling device. The cooling device is characterized by comprising a cooling device rack (6.1), wherein an upper half segment of the cooling device rack (6.1) is provided with a transverse cooling groove (6.2), a lower half segment of the cooling device rack (6.1) is provided with a water storage tank (6.3), the cooling groove (6.2) comprises a left charging region (6.5), a middle cooling region (6.6) and a right drying region (6.7), a right segment of the cooling zone (6.6) is provided with a vertically-arranged first magnetic mechanism (6.25), and the water storage tank (6.3) is internally provided with a vertically-arranged second magnetic mechanism (6.26). The device and the method are advantaged in that production conditions are stable, and plastic extrusion quality is relatively good.

The invention relates to a high-quality coaxial cable cooling device, which is characterized in that the device includes a cooling device rack (6.1), an upper half section of the cooling device rack (6.1) is provided with a transverse cooling groove (6.2), a lower half section of the cooling device rack (6.1) is provided with a water storage tank (6.3), the cooling groove (6.2) includes a feeding zone (6.5) at the left end, a cooling zone (6.6) in the middle section and a drying zone (6.7) at the right end, the right section of the cooling zone (6.6) is provided with a longitudinally arranged first magnetic mechanism (6.25), the water storage tank (6.3) is internally provided with a longitudinally arranged second magnetic mechanism (6.26), and the left section of the cooling zone (6.6) is provided with a longitudinally arranged third magnetic mechanism (6.28). The high-quality coaxial cable cooling device and cooling method have the advantages of stable production working condition and relatively good extrusion molding quality.

The invention relates to a RF (Radio Frequency) coaxial cable extrusion production line. The characteristics lie in that the RF coaxial cable extrusion production line comprises a pay-off device (1), a first diameter measuring instrument (2), a first tension meter (3), a preheater (4), an extruding machine (5), a cooling device (6), a second diameter measuring instrument (7), a second tension meter (8), an electric spark detector (9), a concave-convex instrument (10), a vertical storage device (11), a transverse storage device (12) and a take-up device (13), wherein the cooling device (6) realizes well cooling for extruded products. The RF coaxial cable extrusion production line and the production method thereof have the advantages that the production condition is stable, and the extrusion quality is good.