36results about How to "Avoid the danger of vandalism" patented technology

The invention relates to a method for preparing a catalyst in preparation of acrylic acid by oxidizing acrolein. The general formula of the catalyst is Mo12VaCubWcXdYeOf / Z; and the catalyst is molded by baking for 1 to 24h at the temperature of between 350 and 410 DEG C, and is treated for 3 to 60 hours in mixed gas of air and vapor in any proportion at the temperature of between 260 and 390 DEG C before reaction. The method has the characteristics that: after the catalyst is treated before the reaction, the activity is greatly improved and the catalyst can achieve a steady state at an initial stage of the reaction, so that the danger that the interlocking is caused or the catalyst is damaged caused by hot spot jump or temperature runaway due to overhigh temperature in the running process is avoided; and the catalyst is favorable for being used on industrial devices and is applicable to exhaust gas cycling and non-exhaust gas cycling processes.

The invention provides a data interaction method, a client and a server, so as to solve the problems of requested replaying and client computer safety that cannot be solved by adopting HTTPS (Hyper Text Transfer Protocol Secure) technique. The method comprises the following steps: obtaining a timestamp from a service terminal; sending the first identifying information of a user, the timestamp and verifying data generated according to the first identifying information of the user and the timestamp to the service terminal; obtaining certified data encrypted by the service terminal, wherein the certified data comprises the encrypted data generated for the timestamp and second identifying information of the user; and using the certified data to access the service terminal. According to the method provided by the invention, HTTPS encryption and improved MD5 are used together while the encryptions at the client and service terminal are adopted, so that the possibility of distorting and falsifying data at 'end' and 'path' is efficiently avoided. Besides, the timeliness control is performed on interface calling by using effective time through the timestamp, so that the data damage risk caused by recording and largely replaying a user request is efficiently avoided.

The invention relates to a drying process production line of coal slime. The drying process production line of the coal slime is characterized by comprising a coal slime raw material storage warehouse, a scraper conveyer, a preparing storage bin, a coal slime drying machine, a coal dust gas dusting machine, a gas recycling device and a finished product storage warehouse. A stirring device of the coal slime drying machine in the production line is provided with a large torque starter. A motor can recover to a normal working state rapidly by the starter so that drying production efficiency of the coal slime materials can be improved, and meanwhile labor cost is saved. The drying process production line of the coal slime has the advantages of being low in energy consumption, low in noise, good in structure stability, high in processing efficiency, low in equipment cost, good in equipment adaptability, free from material blocking phenomenon, small in production malfunction, low in manufacturing cost and resource-saving.

The invention relates to a production line used for drying coal slime. The production line used for drying the coal slime is characterized by comprising a coal slime raw material repository, a scraper conveyor, a preparatory material storage bin, a coal slime drier, a coal dust gas dusting machine, a gas recycling device and a finished product repository, wherein reinforcing ribs arranged in a drying cabin of the coal slime drier of the production line can guarantee no deformation of the cabin body of the drying cabin in a high pressure environment; and thermal insulation cotton among the reinforcing ribs guarantees heat loss of the drying cabin to be as low as possible, realizes the energy-saving purpose and lowers the production cost. The production line used for drying the coal slime has the advantages of low energy consumption, low noise, strong structure stability, high processing efficiency, low equipment cost, strong equipment adaptability, no material blockage phenomenon, few production faults, low manufacturing cost and resource economization.

The invention relates to a production line used for drying coal slime. The production line used for drying the coal slime is characterized by comprising a coal slime raw material repository, a scraper conveyor, a preparatory material storage bin, a coal slime drier, a coal dust gas dusting machine, a gas recycling device and a finished product repository, wherein a desulfuration and purification device for absorbing sulfur dioxide generated in the coal slime drying process is arranged at an exhaust port of the coal dust gas dusting machine of the production line, so that the quality of gas exhausted to the atmosphere is guaranteed and air pollution is avoided; and an overhaul hole enables the replacement of the desulfuration and purification device to be more convenient, so that the trouble of detaching a pipeline is avoided. The production line used for drying the coal slime has the advantages of low energy consumption, low noise, strong structure stability, high processing efficiency, low equipment cost, strong equipment adaptability, no material blockage phenomenon, few production faults, low manufacturing cost and resource economization.

The invention relates to a drying treatment system of slurry. The drying treatment system is characterized by comprising a slurry raw material storing warehouse, a scraper conveying machine, a prepared material cabin, a slurry drying machine, a coal dust gas dusting machine, a gas recycling device and a finished product storing warehouse. A rapping device is arranged on a casing of a drying cabin of the slurry drying machine in the treatment system, so that materials hung on the inner wall of the drying machine are thoroughly eliminated, vibration on the casing of the drying machine is effectively relieved, and working environment protection, service life prolonging of the drying machine and production efficiency improvement are facilitated. The drying treatment system has the advantages of being low in energy consumption, low in noise, strong in structural stability, high in processing efficiency, low in device cost, strong in device adaptation, free of blocking, less in production failure, low in manufacture cost, and capable of saving resources.

The invention discloses a weather radar and satellite communication C antenna interlocking control device for scientific research ship, which includes a radar mast, a weather radar antenna and controller, two satellite C antennas and controllers, several satellite communication C and weather radars Operation status display and alarm board, several power supplies, communication and control cables, weather radar air-to-air calibration and detection requires the antenna to be unobstructed and has a high transmission power, and Satcom C’s air-to-air sending and receiving navigation information also requires the antenna to be unobstructed and easily damaged Signal interference, the two have conflicts in spatial arrangement and signal electromagnetic compatibility. The present invention installs the weather radar antenna at the highest possible point of the radar mast, and wherein a set of satellite communication C antenna is installed on the top of the weather radar antenna. The satellite communication C and The signal transmission between the weather radar controllers realizes the control chain of the two systems, which not only avoids the danger of Satcom C antenna being damaged by the weather radar antenna, but also ensures the effectiveness and accuracy of the weather radar in air calibration and detection.

The invention relates to a drying treatment system of slurry. The drying treatment system is characterized by comprising a slurry raw material storing warehouse, a scraper conveying machine, a prepared material cabin, a slurry drying machine, a coal dust gas dusting machine, a gas recycling device and a finished product storing warehouse. The inner wall of an overhaul door of the slurry drying machine in the treatment system is made of materials which are not apt to deform under high temperature and smooth in surface, so that the phenomenon of wall sticking of sticky materials is avoided. The inner wall and the outer wall of the overhaul door are separated from each other through thermal insulation materials, so that deformation of the outer wall and the inner wall is reduced to the minimum degree, and tightness of the overhaul door can be guaranteed. A set of electric actuator is introduced, and automation in opening and closing of the overhaul door can be achieved. The drying treatment system has the advantages of being low in energy consumption, low in noise, strong in structural stability, high in processing efficiency, low in device cost, strong in device adaptation, free of blocking, less in production failure, low in manufacture cost, and capable of saving resources.

The invention relates to a drying treatment production line of slurry. The drying treatment production line is characterized by comprising a slurry raw material storing warehouse, a scraper conveying machine, a prepared material cabin, a slurry drying machine, a coal dust gas dusting machine, a gas recycling device and a finished product storing warehouse. A heat source control device is arranged on a hot air inlet portion of the slurry drying machine of the production line, hot air inlet amount can be regulated according to the moisture content of the fed materials of the drying device to achieve the aim of energy saving, and simultaneously, the drying treatment production line is convenient to adjust, easy to operate and capable of saving a large amount of manpower and time. The drying treatment production line has the advantages of being low in energy consumption, low in noise, strong in structural stability, high in processing efficiency, low in device cost, strong in device adaptation, free of blocking, less in production failure, low in manufacture cost, and capable of saving resources.

The invention relates to a coal slime drying treatment production line. The coal slime drying treatment production line is characterized by comprising a coal slime raw material storing repository, a scraping plate conveyer, a prepared material bin, a coal slime drying machine, a coal dust gas dust removing machine, a gas recycling device and a finished product storing repository. The coal dust gas dust removing machine in the production line is provided with a heating device at the position of an air inlet, the heating device heats the tail gas temperature from 60-120 DEG C to 160-190 DEG C and then enters into the dust removing machine to enable coal dust to be further dried, and a phenomenon that cloth bags are blocked by coal dust is avoided. The coal slime drying treatment production line has the advantages of being low in energy consumption, small in noise, strong in structural stability, high in processing efficiency, low in device cost, strong in adaptability, free of blocking phenomena, few in production faults, low in manufacture cost and resource-saving.

The invention relates to a drying treatment system of slurry. The drying treatment system is characterized by comprising a slurry raw material storing warehouse, a scraper conveying machine, a prepared material cabin, a slurry drying machine, a coal dust gas dusting machine, a gas recycling device and a finished product storing warehouse. If a chain wheel of the scraper conveying machine in the treatment system needs to be replaced, users only need to detach a plurality of bolts instead of detaching a coupler, a bearing base, an end cover and a bearing, so that the chain wheel can be replaced, the replacing procedures are greatly reduced, and the replacing efficiency is greatly improved. The drying treatment system has the advantages of being low in energy consumption, low in noise, strong in structural stability, high in processing efficiency, low in device cost, strong in device adaptation, free of blocking, less in production failure, low in manufacture cost, and capable of saving resources.

The invention relates to a coal slurry-drying production line. The coal slurry-drying production line is characterized in that the coal slurry-drying production line comprises a coal slurry storage silo, a scraper conveyer, a preparatory bin, a coal slurry dryer, a coal dust gas deduster, a gas-recycling unit and a finished product storage silo. Because a retractable discharge hopper unit in the production line adopts a retractable hopper design, flying dust in discharge can be effectively reduced; as retractable shells are extended or retracted, a retractable sleeve is extended or retracted, and thereby flying dust can be further prevented from leaking out; and a guiding track can control the moving track of the retractable shells to prevent the deflection of the retractable shells, thus further guaranteeing the accuracy of the discharge position. The coal slurry-drying production line has the advantages of low energy consumption, little noise, high structural stability, high processing efficiency, low equipment cost, high equipment adaptability, no blockage, less production failure, low production cost and resource saving.

The invention relates to a drying treatment system of slurry. The drying treatment system is characterized by comprising a slurry raw material storing warehouse, a scraper conveying machine, a prepared material cabin, a slurry drying machine, a coal dust gas dusting machine, a gas recycling device and a finished product storing warehouse. A material raising shaft of the slurry drying machine in the treatment system is made of high-temperature-resisting materials and adopts a loading torque loop, so that the material raising shaft cannot deform under high-temperature, high-speed and large-torque operation, the material raising capability and the torque bearing capability of the material raising shaft are greatly improved, and the material raising efficiency and the working stability are greatly improved. The drying treatment system has the advantages of being low in energy consumption, low in noise, strong in structural stability, high in processing efficiency, low in device cost, strong in device adaptation, free of blocking, less in production failure, low in manufacture cost, and capable of saving resources.

The invention relates to a production line used for drying coal slime. The production line used for drying the coal slime is characterized by comprising a coal slime raw material repository, a scraper conveyor, a preparatory material storage bin, a coal slime drier, a coal dust gas dusting machine, a gas recycling device and a finished product repository, wherein the gas recycling device of the production line is additionally provided with a secondary dust removal device, namely, a cyclone dust collector; and a small number of fine coal dust still existing in an intake airflow is separated from the airflow under the action of an inert centrifugal force through the rotation of a worm wheel, is thrown to the inner wall of the shell of the cyclone dust collector, and finally falls into a recycling hopper of the cyclone dust collector. The secondary dust removal further guarantees the quality of the gas exhausted to the atmosphere and belongs to an extremely environment-friendly gas recycling device. The production line used for drying the coal slime has the advantages of low energy consumption, low noise, strong structure stability, high processing efficiency, low equipment cost, strong equipment adaptability, no material blockage phenomenon, few production faults, low manufacturing cost and resource economization.

The invention relates to a production line used for drying coal slime. The production line used for drying the coal slime is characterized by comprising a coal slime raw material repository, a scraper conveyor, a preparatory material storage bin, a coal slime drier, a coal dust gas dusting machine, a gas recycling device and a finished product repository, wherein an air speed adjusting valve which is convenient to control a flow speed of hot air in the coal slime drier is arranged at an air outlet of a blower of the coal slime drier of the production line, and a temperature control device which is convenient to control the temperature of the hot air flowing into the coal slime drier is arranged in a hot air inlet pipe, so that heat energy waste is avoided; and thermal insulation cotton is sleeved outside the hot air inlet pipe, so that heat loss is further reduced, and production cost is saved. The production line used for drying the coal slime has the advantages of low energy consumption, low noise, strong structure stability, high processing efficiency, low equipment cost, strong equipment adaptability, no material blockage phenomenon, few production faults, low manufacturing cost and resource economization.

The invention relates to a production line used for drying coal slime. The production line used for drying the coal slime is characterized by comprising a coal slime raw material repository, a scraper conveyor, a preparatory material storage bin, a coal slime drier, a coal dust gas dusting machine, a gas recycling device and a finished product repository, wherein a main pipe body of a hot air conveying pipe of the coal slime drier of the production line is made of a steel plate, so that pressure bearing intensity of the pipe body is guaranteed; a front explosion-proof port and a rear explosion-proof port are arranged at the front and rear ends of the main pipe body, so that equipment damage caused by over-pressure in the pipeline is avoided; and the inner wall of the main pipe body is provided with a spiral groove which extends along an air blowing direction, so that the flow speed of the hot air is speeded up, and drying efficiency is increased. The production line used for drying the coal slime has the advantages of low energy consumption, low noise, strong structure stability, high processing efficiency, low equipment cost, strong equipment adaptability, no material blockage phenomenon, few production faults, low manufacturing cost and resource economization.

The invention discloses a cordwood special-shaped diaphragm flexible shaft coupling comprising a flange and special-shaped diaphragm combination units. Each special-shaped diaphragm combination unit comprises two special-shaped diaphragm chains and a spacing disc or a linkage ring between the special-shaped diaphragm chains, every two special-shaped diaphragm combination units are connected with the spacing disc or a spacing shaft or the linkage ring or a linkage shaft, and the special-shaped diaphragm chains are divided into single-layer special-shaped diaphragm chains and compound special-shaped diaphragm chains; each single-layer special-shaped diaphragm chain is formed by tightly connecting at least two three-hole special-shaped diaphragm laminating members from head to tail, each compound special-shaped diaphragm chain is formed by complementing, staggering and laminating two staircase type special-shaped diaphragm chains on space, and each staircase type special-shaped diaphragmchain is formed by staggering a plurality of two-hole special-shaped diaphragm laminating members from top to bottom and laminating the two-hole special-shaped diaphragm laminating members from head to tail. The invention has the advantages of correction angle (triangle phi is equal to 3 degrees), no lubrication or maintenance, durability, ultra compactness, airflow shielding, low noise and cost,electric insulation, overload protection and on-site free assembly and disassembly and is suitable for wind-driven generators required to constantly work in 80-m high altitude and a harsh environmentwith large temperature difference all the year round.