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Three-dimensional three-dimensional nozzle to improve efficiency It is well known that under the same conditions of air consumption per unit time, the increase in the production of qualified products per unit time can increase production efficiency, thus achieving the goal of reducing energy consumption.
For this reason, the technicians in the new model, aiming at the nozzle arrangement of the smashing bin, will improve the current parallel parallel method to a three-dimensional distribution method, that is, setting several nozzles inclined downwards around the ring smashing bin. At the same time, vertically upward nozzles are arranged in the center of the bottom of the crushing bin, and all the nozzles form a unified three-dimensional distribution form. This technology can greatly expand the chance of powder objects colliding in the smashing bin, which will help improve the powder fineness and product output, and reduce the accumulation of material in the smashing bin during processing.
Practice has proved that with the same product fineness and the same energy consumption, three-dimensional three-dimensional nozzle settings can increase production efficiency by 40% to 60%.
Full-scale positive pressure operation energy saving Compared with the traditional model, the new crushing model uses a number of innovative technologies to achieve positive pressure operation and full automatic continuous production from the feeding to the product collection process, bringing a variety of benefit.
The feed, discharge system and crushing process are completely closed to avoid contamination of the untreated air in the environment where decontaminated, water-removed, dust-removed and sterilized clean compressed air is sucked in, thus ensuring the crushing system Gas safety; eliminates the need for setting up the necessary draft fans in the traditional process, simplifies the process, completely eliminates the environmental noise pollution caused by the high-pressure induced draft fan, and reduces energy consumption, land occupation, and equipment investment; Take 10 cubic meters per minute as an example, the power consumption of the high-pressure induced draft fan is 5.5 kW/hour, and the average power is 8 hours per day. The whole year is turned on for 300 days. The power consumption of the induced draft fan is as high as 13,200 kilowatts/hour. .
In the positive pressure operation mode, the induced draft fan is not provided, so there is no fluctuation of the induced wind volume affecting the grading system. When the same target fineness is achieved, low rotational speed operation can be achieved, which has obvious advantages in reducing noise and protecting equipment. . Take the crushing of VC powder from a plant in Northeast China as an example: The raw material is 80 mesh and the comminuted product is 200 mesh (74 microns). The system is operated at full negative pressure. The grading wheel speed must be set to 7000 rpm. Big, there is vibration. With the same material, a new model was used for crushing and full pressure operation was performed. When the same product was obtained, the speed of the grading wheel was only set to 1000 rpm, and there was no noise or vibration. The same material was crushed, the product fineness reached 6250 mesh, and the grading wheel rotation speed was only 2500 rpm. The grading accuracy of a positive pressure operating system is up to 3 to 5 microns. As long as the speed of the grading wheel is changed by the frequency conversion device, different grained terminal products with steep distribution can be obtained. The new crusher models can obtain qualified products through a single-stage cyclone separator, eliminating the use of multi-stage cyclone separators in series to achieve the disadvantages of increased resistance, increased energy consumption, etc., in the final product, which reduces the investment in the equipment and accounts for The burden on the area, etc.
In addition, high-precision horizontal grading system can meet the needs of pharmaceutical companies in the frequent replacement of products, cleaning, disassembling more convenient. In the shaft end sealing method, multiple air sealing devices with no running parts are adopted, no noise, no vibration and no wear, which can ensure long-term safe and stable operation of the classification system.
Intelligent Feeding Simplification of Feed Discharge In order to effectively obtain qualified end products, it is of crucial importance to ensure the smooth and uniform feed-discharge process in drug production.
In a positive pressure operating system, how to ensure that a fully enclosed silo can be replenished at any time is a challenge. The general way is to set a star-shaped material-discharging valve between the discharge port of the material bin and the smashing bin, and block the positive pressure gas flow in the smash bin by means of a star blanking valve to prevent the positive pressure gas from flowing into the bin and causing the material to spurt. . However, the star blanking valve has a large volume, a complicated structure, and a short life cycle, and the reliability is difficult to ensure. At present, new models appearing in the country adopt screw feeder air lock devices instead of bulky star blank valves. At this point, the hopper can be replenished at any time. The device is light in weight, small in size, easy to operate, has no energy consumption, and almost does not need to increase the installation space of the device.
In order to ensure a reasonable material concentration in the shredder, the material must be uniformly introduced into the shredder. The new machine can intelligently control the amount of feed through the PLC control device to ensure that the materials to be crushed in the hopper can enter the shredder warehouse in a timely manner. For some materials in the silo easy to produce bridging, difficult to discharge phenomenon, through the silo built-in pneumatic and manual two sets of anti-material bridging device, can ensure that the material into the shredder evenly.
These new cyclone separators also use the same air lock device of the screw feeder to achieve continuous discharge under positive pressure continuous operation conditions, eliminating the need for star-shaped blanking valves, reducing investment and land occupation. Area, while avoiding the frequent replacement and overhaul of star discharge valve.
New Technology Adds Advantages for Air Flow Superfine Crushing
The Chinese and Western medicine products produced by micronization technology have attracted attention from the industry for their easy absorption, low toxicity and high curative effect. Fluidized bed ultrafine air flow crusher has always been an extremely important position in the field of pulverization of medicines, foods and heat-sensitive substances because of its superior crushing performance, high product purity, and low crushing temperature. However, the current airstream smashing method has the disadvantages of high energy consumption and low efficiency. Recently, in order to solve these deficiencies, technical personnel in China have developed and produced a series of new high-efficiency and high-energy-utilizing jet crushing equipment through technological improvement and innovation.