There are two ways for paper sizing, one is in front of the sheet forming (beating or ingredients) add sizing agent in pulp called intracytoplasmic sizing, another is in sheet forming after coating on paper or cardboard surface is called the surface glue.The sizing agent of pulp is mainly rosin sizing agent, synthetic sizing agent, paraffin sizing agent and neutral sizing agent.Surface sizing agent and neutral sizing agent.Surface sizing is mainly to improve the smoothness of the surface of the paper, reduce the porosity and prevent the surface hair and hair loss.The more used is modified and unmodified starch, and the PVA is also used.Other products include paraffin emulsion, animal glue, carboxymethyl cellulose, polyurethane, styrene-maleic anhydride copolymer, acrylate copolymer, dihydroxy fatty acid compound, etc. Paper Sizing Agent,Sizing Agent For Paper,Paper Surface Sizing Agent,Papermaking AKD Surface Sizing Agent Shandong Tiancheng Chemical Co., Ltd. , https://www.tianchengchemical.com
The unloading car is driven by a motor on the car through a decelerator. The chain drives the traveling wheel so that the car can move back and forth on the guide rail of the conveyor frame. The material conveyed by the conveyor falls into the unloading funnel of the car after reaching the car position. In order to achieve the discharge at any point in the middle of the conveyor
The installation of the machine is very convenient. It is only necessary to place the cart on the rack rails and pass the conveyor belt through the rollers of the cart, the roller group, the conveyor belt to form the transmission drum through the head, the rear redirection drum, and unloading. The wagon's wraparound can be
For the first time, it should be done in a jog mode to check if the brakes of the trolley are adjusted properly. When the car walks on the rack rails for the first time, it should love to use the jog mode to prevent excessive collision with possible obstacles. Secondly, when the car walks, it can check the intoxication between the guide rails and the trolley wheels. Inverted conditions to use the car parts operating conditions. After the above operations are confirmed to be normal, the trolley can perform the test on the guide rail at any point. The test is mainly to observe the flexible and reliable walking of the trolley, the cooperation of the traveling wheel and the guide rail, and the degree of rigidity of the conveyor body. Then make necessary adjustments according to the test conditions. After passing the above debugging, the car can be put into use.
After the trolley is used, the components should be inspected on a regular basis, and the bearings should be greased on a regular basis to lubricate the drive chain.
Discharge car use and maintenance
The unloading trolley is used to unload the material of the belt conveyor to any point in the middle of the conveyor to utilize the site procedural material or distribution material in the largest range. The unloading trolley has the advantages of compact and reasonable structure, reliable use, long service life, convenient maintenance and low maintenance cost, and is widely used in mining, power, metallurgy, coal mines, ports, building materials and other industries.