Broken paper pages, strictly speaking, can't be called paper diseases, fatal injuries, the reason is very simple, the dry strength is not enough, the general direction is found, just how to solve the problem, follow this idea, let's take a look The article below Decapitation is a frequent failure of papermaking, most of which is in the wet end. 1. Broken head Reasons for decapitation: 1) The ratio of mechanical pulp is high, chemical pulp is few, and wet paper strength is low. 2) The beating degree of the online slurry is too high, the dehydration speed is slow, the water line is elongated, and the paper is easily broken at the roll. 3) The vacuum of the voucher is low, and the dehydration is not good; sometimes the vacuum is very high, but the number of clogged holes is large, and the moisture is still large when the voucher is exited. 4) Too much pulp speed is lower than the net speed, so that the fiber structure is disjointed, resulting in a broken head. Prevention and treatment measures: 1) The amount of chemical pulp should be increased to improve the wet strength of the paper sheet. 2) Appropriately reduce the beating degree of mechanical pulp and chemical pulp, and improve water filtration performance. 3) Check for leaks in the sealing system and vacuum system of the roll. 4) Open the discharge valve and increase the speed of the speed motor of the sizing pump to ensure the head of the headbox, increase the speed of the pulp, and prevent the fiber tissue from being disconnected. 2. Broken head in the press section Reasons for decapitation: 1) In the local position of the press roll, contaminants such as resin, glue and fine fibers are stuck, or the scraper is not strict, and the wet paper sheet is stuck to one or one piece, causing a broken head. Some factories call this phenomenon the first half. 2) The paper guide felt is seriously polluted locally, dehydration is not good, and the paper sheets are crushed, causing broken ends. 3) The vacuum degree of the vacuum suction roller is low or the angle of the vacuum chamber is inappropriate, which makes it difficult to lead the paper. 4) The moisture of the paper sheet entering the press section is too high, the basis weight is small, the wet paper strength is low, and it is easy to break when exiting the second and third press rolls. 5) The edge of the water needle is not good or the felt line breaks and the head is broken. Prevention and treatment measures: 1) The scraper and the roller surface must be tightly contacted in a straight line. The dirt on the surface should be scraped as much as possible. When the scraper is not strict, it must be replaced. Change the clean water of the blanket to the condensate of the drying cylinder. After cleaning the blanket, the number of head breaks is greatly reduced. You can also use chemical detergents to clean the blankets. 2) If the suction leakage of the suction roller is not suitable and the angle of the vacuum chamber is not suitable, stop the roller and change the roller. 3) Improve the basis weight and dryness of the wet paper sheet of the roll and increase the wet strength. 4) Increase the water pressure of the water needle or change the water needle. 3. Broken head in the drying section Reasons for decapitation: 1) If the edges are too thin or the sheets are not tight, it is easy to cause a dry mouth and be pulled off from the mouth. 2) The drying cylinders of each group also have broken ends due to different speed ratios. 3) When producing low-quantity paper, when the vehicle speed is high, the paper is prone to shudder at the dryer and break. 4) The dry net is easily contaminated by resin and paper powder, which causes spots on the paper surface and breaks. 5) The drying cylinder is contaminated, the scraper is not in strict contact, and the head is broken. 6) The moisture on both sides of the paper is too low, and the broken edge of the paper is prone to break. Prevention and treatment measures: 1) Finely adjust the opening of the two ends of the weir to increase the thickness of the paper; adjust the parallelism of a group of leading rollers and the first cylinder to prevent the paper from slanting. 2) Due to the speed difference, the SCR should be checked for failure. 3) For high-speed chattering and breaking, you can move the large cloth roller closer to the dryer, or add a paper guide roller to support the wet paper in the paper hanging area of ​​the upper and lower cylinders. 4) A continuous double cleaner is installed in the drying section to spray compressed air from the nozzle onto the surface of the dry net, which can remove paper powder; saturated steam and high-pressure water can separately remove the resin, and the effect is remarkable. 5) The key is that the scraper should be strict, and replace it in time if it is not strict. 6) Install the steam spray device and control the air permeability on both sides of the cloth, which can adjust the moisture on both sides of the paper sheet. Editor in charge: Liu Yang What is the tissue holder like? Toilet Paper Organizer,Tissue Rack,Toilet Paper Dispenser,Toilet Paper Holders OYEAL Global , https://www.oyeal-home.com
The paper towel rack is a container made of plastic or metal materials, with a built-in or shelved roll paper or origami. Home, hotel, bathroom, toilet, public place, entertainment place and other private and public places. The early barreled paper boxes gradually developed into large roll paper towel boxes and origami racks. The style gradually changed to modern innovative super luxury commodity quality design, leading European charm, noble and elegant, and fashionable and wonderful decoration art.
What's the function of tissue holder? Here are some commonly used vertical towel racks.
The vertical tissue holder includes three parts: the base plate of the tissue holder, the cylinder shaft and the top cover of the tissue holder. The main feature of the vertical tissue holder is that one end of the cylinder shaft is fixed on the base plate of the tissue holder, and the other end is connected with the top cover of the tissue holder through a locking mechanism between the cylinder shaft and the top cover of the tissue holder, and a tissue clamping and pressing mechanism is installed beside the top cover of the tissue holder. The vertical paper towel holder of the utility model is adopted, so that the paper towel holder can be placed in various places without having to be installed on the wall, which increases the scope of its use. At the same time, the paper towel cylinder can be installed conveniently and quickly. When you tear the paper towel, you only need to press the top cover of the paper towel and the side clamping mechanism with your hands, and do not need to directly contact the paper towel on the roll, which is easy and sanitary, The rabbit can avoid contaminating the paper towel on the roll when cooking or doing other work, which brings convenience and sanitation to people's use.