35results about How to "Realize civilized production" patented technology

The invention provides a phenol-free resin for offset printing ink. The resin formula comprises, by weight, 60-80 parts of rosin, 1-10 parts of fumaric acid, 1-10 parts of maleic anhydride, 1-10 parts of aliphatic acid, 10-20 parts of polyol, and 0.1-1 part of a catalyst. The performance indexes of the phenol-free resin for offset printing ink are as follows: the viscosity is 15000-25000 mPa.s / 25DEG C; the release property is larger than or equal to 5 ml / 2g; the acid value is less than or equal to 25 mgKOH / g; and the softening point is 160-175 DEG C. The invention also provides a method for preparing the phenol-free resin for offset printing ink. The effects of the invention are as follows: the phenol-free resin for offset printing ink can be used for offset printing ink; there exists no phenolic substance and formaldehyde during the reaction process, thus minimizing the atmospheric pollution and the harmfulness to the health of an operator and realizing civilized production.

The invention relates to a cutter teeth discharging machine of a bulk material silo, which is characterized in that: a slewer is arranged right above a discharging hopper on the bottom of the silo; the slewer is a slewing tray frame slewing around a central shaft; one side of the edge of the slewing disk is provided with a set of hydraulic driving system while the other side thereof is provided with a rotary cutterhead with a speed reduction motor; the cutterhead is provided with one to six cutter teeth and the working surface of the cutter teeth is provided with scrapers; an decompression cone which is used for preventing the material from arching and is supported on the wall of the silo is arranged in the silo right above the slewer. By adopting the discharging machine, whether single-cutter discharging or multi-cutter discharging is adopted can be determined according to storage amount of the bulk material and the size of the silo. The discharging machine has the advantages of flexible layout position of the silo, small labor load for maintenance and environmental protection.

The invention, which belongs to the technical field of automatic controlling, particularly relates to a UF6 vaporization automatic control system and a control method thereof. A DCS control system of the system is composed of a material holding container internal pressure transmitter, a material holding container outer-wall temperature transmitter, a gas-guide tube temperature transmitter, a current transmitter, an analog-to-digital conversion module, a PID pressure regulator, a program setting device, a sequence controller, a conversion controller, a PID temperature regulator A, a PID temperature regulator B, a protection linkage controller, a digital-to-analog conversion module, a switching value output module, a heating controller, and a heater. And a PLC control system of the system includes a vaporization tank internal pressure transmitter, a doorseal pressure transmitter, a PLC analog input module, a PLC controller, a graphic operation terminal, and an output controller. The DCS control system is used for realizing continuous automatic control and protection of the internal pressure and the wall temperature of the material holding container as well as continuous and automatic control and protection of the gas-guide tube temperature and the heater current; and the PLC control system is used for realizing automatic control and protection of the internal pressure and the doorseal pressure of the vaporization tank.

The invention relates to a cleaning and dust collecting method of volatilized zinc oxide and a device thereof. Low grade zinc material is reduced and volatilized in a metallurgical furnace with reducing atmosphere; volatilized flue gas enters a spraying-cloth bag tower via an oxidizing chamber and a surface cooler; the zinc oxide in the flue gas is collected; fluorine and chlorine enter spraying solution; sulfur dioxide forms ZnSO3 to enter secondary zinc oxide paste; after the secondary zinc oxide paste is separated through filter pressing, the filter liquor returns to be circularly used; and filter residue is secondary zinc oxide product. The invention has the advantages that fluorine, chlorine and sulfur dioxide in the flue gas can be removed during the dust collection process, so as to enable the secondary zinc oxide to be directly used as the raw material for producing electrolytic zinc, the technological process can be reduced, the investment can be saved, and the invention is energy-saving and environment protective.

The invention disclosed a CNC dual -station polishing machine, which involves the field of polishing equipment. There are two position adjustment mechanisms on the support frame in the chassis.The lower end of the polishing machine is connected to the protective device. The upper end of the protective device is equipped with a wax device. The supporting stand is provided with a workbench. There are turntables and disc drive mechanisms on the workbench. There are three workpieces on the turntable.There is a governance installation platform and workpiece rotating mechanism. There are sword repair devices on both sides of the turntable. The sword repair device is set away from the side of the turntable with a water curtain fixed rack.The institution is connected to a water circulation device, the case has an automatic lifting door and a side door, and the automatic lift curtain is provided between the side door and the water curtain fixed rack.The dust generated by polishing is captured by the water curtain mechanism and is used through the water circulation device to filter the cycle. The production environment is clean and orderly, creating a suitable working environment.

The steel tube measuring equipment relates to rack, five work stations walking beam institution, measuring length institution, painting institution, weighing institution, printer institution and spraying sign institution. According to the portrait axes to rack, set one five work stations walking beam institution driving by one and more motors on rack. According to the five work stations walking beam, set measuring length institution, painting institution, weighing institution, printer institution and spraying sign institution, from one end to the other end of rack in turn. Then complete measuring length, painting, weighing, printer and spraying sign to steel tube according to the national standard. It adopts not only mechanization flow operation, enhances production efficiency, assures product quality, and also greatly lightens labor intensity, realizes civilization production with safe and easy operation.

The invention discloses a drilling machine for changing an air brick of a converter at a bottom blowing and thermal state. The drilling machine comprises a motor, a hollow drill bit and a coupler; the drilling machine further comprises a ball screw, a slideway and a dust cover; the motor base of the motor is connected with the slideway in a sliding manner; a nut of the ball screw is fixed on one end of the slideway; one end of the screw of the ball screw is fixedly provided with a feeding rocking wheel; the other end is axially fixed to the motor base of the motor, and relatively rotates longitudinally; and the lower end of the hollow drill bit is provided with the dust cover. According to the drilling machine for changing the air brick of the converter at the bottom blowing and thermal state, the feeding rocking wheel is arranged at the tail part of the drilling machine, so that safety loopholes during operation are eradicated; the drilling precision is effectively improved by adopting the ball screw slideway; the dust cover is additionally arranged, so that the operation and construction condition is improved, and civilized production is realized; an ordinary motor is replaced by the frequency modulation motor, so that the drilling machine can be applicable to various complicated working conditions; and a high-strength material is adopted by critical parts such as the coupler, so that the durability of the whole device is greatly improved.

The utility model discloses a punched seam sleeve cleaning machine, comprising a frame; a plurality of support rollers linearly arranged on the frame and used for bearing a punched seam sleeve; a rotation mechanism arranged on the frame and used for driving the punched seam sleeve to rotate; a rotation driving motor fixed on the frame and used for driving the rotation mechanism to rotate; a traveling mechanism arranged on the frame and moving on the frame along the axis direction of the punched seam sleeve; and a wheel brush cleaning mechanism arranged on the traveling mechanism and moving along with the traveling mechanism; the wheel brush cleaning mechanism comprises a cleaning wheel brush and a cleaning motor for driving the cleaning wheel brush to rotate; the cleaning wheel brush is rotated under the driving of the cleaning motor and contacts with the punched seam sleeve to be cleaned. The punched seam sleeve cleaning machine has the characteristics of high efficiency and good cleaning quality.

The invention discloses a bearing suitable for quick replacement on a transmission device and an installation method thereof. The bearing is arranged on a roll neck of a roller. The bearing comprises: an inner ring, a cage roller assembly and an outer ring which are sequentially fitted from the inside to the outside. It also includes: a fastening ring, a positioning spring ring, and the inner ring, the cage roller assembly, the outer ring and the fastening ring are all of a half-split structure. The invention can quickly deal with the difficult problem of bearing failure replacement under emergency conditions, thereby reducing downtime of equipment failure and ensuring stable operation of the equipment system.

The invention relates to the technical field of transportation, in particular to a loose-packed gel material parallel ash-unloading system for transfer management of a loose-packed gel material in large hydropower station construction. The system comprises 1) a loose-packed gel material storage tank, 2) a main pipeline system, 3) an ash unloading branch pipe, 4) an ash loading branch pipe, and 5) a warehouse side unloading port. According to the loose-packed gel material loading system, an advanced computer remote management mode is adopted, and the routine work in the conventional loose-packed gel material loading system is changed from an optional manual mode into a normalized computer work mode, which means the revolution of the working mode. According to the loose-packed gel material loading system of the hydropower station, unattended or less-attended operation is realized in a unique way, the work load of maintenance staff is lightened, and the maintenance level is improved. The capability of the loose-packed gel material loading system of a gel material transfer station is greatly improved, and the requirements on peak annual loose-packed gel materials of hydropower stations at all levels are met.