The combination of tool dismantling and equipment demolition eventually rescued the injured and immediately sent it to the hospital. Because the machine stuck the injured person's right foot, the blind action would cause a serious second injury. After the commander weighed, the decision was taken. The rescue method combined with tool disassembly and equipment demolition, first fix the machine with a safety rope, then use the non-tooth saw to cut and dismantle, and the firefighters use the carton board to isolate the ground to prevent the Mars from splashing. To the injured. After arriving at the scene, the fire commander quickly learned about the scene and found that a worker in the workshop of the printing plant was accidentally stuck in the right foot and could not move the machine while operating the printing press. The base paper used in corrugated board production is mostly recycled paper. The cleaning degree of the cylinder surface of the large drying cylinder and the tightness of the scraper: the long-fiber low-slurry degree is relatively insufficiently combined with the paper fiber. If the large-cylinder scraper is not tight, the paper scraps are easily brought into the paper, causing hair loss. The angle of the scraper should be appropriate. The inclination of the metal scraper should be ≤23°-25°, and the inclination of the PE scraper should be slightly larger.
The product leaves no trace after peeling off the sticker. Steam pressure control: the surface paper is less preheated or not preheated, reducing the loss of water in the base paper, and the temperature (pressure) of the hot plate is reduced. According to the 90g recycled paper, the three sections of the steam pressure of the double-sided machine drying section should be respectively For: 4-4-3 kg. Whether the adjustment of the squeegee is parallel, it must be even and clean, and the glue of the paste roller should not be uneven. Not commonly used: dissolve the resin that has not exploded, fill the hole with a drop, and the printing plate can continue to be used. Production process technical conditions 1 slurry ratio using 100% bleached sulfate softwood pulp (indicator: brightness 88%-90%, dust degree not more than 25mm2 / kg, fiber length not less than 0mm, pulp degree 13-15OSR) . The brake tension of the bridge is also small. It is possible to visually check that the cardboard can enter the hot plate in parallel, and the cardboard is flexible by hand. The acyl group and the hydroxyl group content of the lignin phenol are appropriately adjusted by the acetylation method, and a composite film having a certain mechanical strength can be obtained in the range of 5% to 20% of the lignin addition amount. Solution 1 Adding yellow plastic mud Because there is no spray pipe installed in the upper part of the aeration tank of the plant, and it takes a certain cost to add defoaming agent, so the yellow foam is used to deal with the large amount of foam generated by the aeration tank. A set of text or color blocks is overprinted by multiple units, increasing the difficulty of printing. Hazardous part 1: The reason for the paper feed wheel: Reaching out or standing on the paper feeder to get the damaged cardboard: The hand or foot is caught in the paper feed roller. Protective measures: Handling dangerous parts according to regulations 2: Printing machine opening and closing Reasons for the incident: When the equipment is closed, there is no notice. The person has not come and left or the hand has not had time to take out the injury: the hand or the body is caught by the equipment. Protective measures: When opening and closing the machine, pay attention to remind the staff of the dangerous part three: printing machine Causes of slotting: When the knife is disassembled, the hand is cut, or when the hand is turned, the hand is touched. The hand is cut. Protective measures: Take extra care when disassembling the knife. Do not touch the dangerous part when the machine rotates. Four: Printing cylinder and anilox roller Cause: When installing the printing plate, do not pay attention to the injury situation: the hand is involved in the printing cylinder and the anilox roller. Protective measures: install the printing layout, first turn off the printing machine, and inform the staff . Paper felt impact: The choice of press felt depends on the variety, quantitative and surface modification requirements of the paper produced. The spunlace base paper requires a fine surface and uniform consistency. Therefore, the choice of the blanket should give priority to the delicate surface of the blanket. Degree, in actual use, the ratio of wool net to felt is not less than 65%, and the ratio of surface fiber weight to wool net should not be lower than 30%, and the surface fiber fineness is not more than 8dtex, ensuring good surface modification. effect. When the paper is processed, the fine fibers are easy to fall off, resulting in hair loss, which is not conducive to the later hydroentangle compounding and use. When you receive a RMB, if you do not have a money detector at hand, what to do if you determine the authenticity. These colors come from engraved gravure inks. Of course, in addition to the concave and convex texture, the bright colors formed by the bumps and the lines, and the beautiful patterns, also add a special beauty to the banknotes. In the mid-eighteenth century, the Austrian bank tried to make banknotes with a harder and more wear-resistant steel gravure.
The secondary sedimentation tank sludge floating is a frequent problem in the paper mill sewage treatment system. The root cause is due to the failure of biological system operation, which mainly includes: influent water quality, pH value, dissolved oxygen, temperature, toxic substances, denitrification . The two methods of remediating the printed version are commonly used in the industry. The carton does not make money, and can only be saved from the production materials to reduce the production cost. If it is not treated in time, the blood vessel necrosis will be at risk of amputation. Therefore, under the conditions of satisfying the vertical and horizontal wet and dry strength of the paper and the normal production of the paper machine, the degree of beating is reduced as much as possible. Acetylated lignin p-cresol and polylactic acid were blended and weighed into 00 g of PLA in a 250 ml three-necked flask, 32 ml of chloroform was added, and it was stirred in a water bath at 90 ° C until completely dissolved, 20 g (equivalent to PLA) 5% by mass of acetylated lignin p-cresol was dissolved in 5 ml of chloroform solution, stirred with a glass rod until completely dissolved, and then added to a three-necked flask and stirring was continued.
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