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

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 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 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. Material raising teeth of the slurry drying machine in the treatment system can effectively eliminate the phenomenon of journal sticking of sticky materials, and the drying treatment system of slurry is abrasion-resisting and thermal-insulation and can effectively improve production efficiency and prolong the service life. 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 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 relates to a drying processing system of coal slime. The drying processing system is characterized by comprising a coal slime raw material storage bin, a scraper conveyor, a prepared material bin, a coal slime drying machine, a coal dust gas dusting machine, a gas recycling device and an end product storage bin. The scraper conveyor in the processing system is provided with a vibration material guide bin on a material inlet, the vibration material guide bin utilizing a vibration increasing spring enables vibration of a vibrator to be enhanced, restriction of a support does not exist, strong vibration can be produced, adhesive material can be smoothly led to a conveying belt of the scraper conveyor, and drying production efficiency of coal slime material is greatly improved. The drying processing system has the advantages of being low in energy consumption, small in noise, strong in structure stability, high in processing efficiency, low in equipment cost, strong in equipment adaptability, free of a blocking phenomenon, few in production fault, and low in manufacturing cost, and saving sources.

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.