UHB-ZK mortar pump performance is excellent, a wide range of applications, are widely used: acid, alkali, salt, oil, food and beverage alcohol, organic solvents and other liquids, especially for the delivery of fine particles containing Strong corrosive objects. The following will share with you Xiaobian about UHB-ZK mortar pump start, operation, maintenance and disassembly procedures. Startup, operation, maintenance and disassembly procedures of UHB-ZK mortar pump Startup, operation and maintenance Pre-operation inspection Hand-cranked coupling or shaft should be used before test operation to check whether steering is correct and operation is flexible. For example, Disk stationary or abnormal sound, should be promptly checked, first check the external hand coupling level from the outside, from the oil hole on the bearing seat check the location of the oil is near the center line of the oil mirror (too More should be let go of some, too little should be added some), while checking the edge pan, if the problem persists, it is necessary to remove the pump check. Drive a. Fill the pump with liquid b. Promptly open the inlet valve (if the inlet valve is a one-way check valve, there is no need for manual operation) c. Turn on the power d. Reopen the outlet valve if any abnormal operation Sound, or motor fever and other abnormal situations, should also be shut down to check, check the method and steps with a shutdown a. First close the outlet valve b. Cut off the power and promptly close the inlet valve; (such as the import valve for the single To the check valve, you do not need to manually). Maintain a. The lubricating oil in the bearing housing should be replaced regularly, and the replacement should be carried out in six months under normal conditions. b. In the cold season, if freezing occurs after the pump is stopped, connect the cooling water in the sealed place first, if necessary, heat the water to thaw it, and then hand the coupling until the operation is flexible and then start the vehicle according to the startup procedure. c. The pump with cooling water device should be connected to the cooling water before driving. When the pump is in normal operation, it can continue to be connected. If the conditions are not allowed, it can be stopped. The flow and pressure of the cooling water are not required, and tap water can be used ; D. The operation of the pump when closing the outlet valve is called closed-pressure operation. The closing pressure operation time of the plastic pump or lined plastic pump should be as short as possible. The normal temperature medium should not exceed 5 minutes, Better than 2 minutes; e. Sub-pump casing pump, such as imports of more than 150mm pump, the surface of the plastic seal, some due to thermal expansion and contraction size, the installation should be the first points in the connection Bolt tighten, and then connect the inlet pipe to prevent the surface leakage, this is particularly important for users in the north; f. The pump can not withstand the weight of the import and export pipe, the inlet pipe is as short as possible, the pump outlet to the valve Vertical height should be as short as possible; g. Keep the motor no water, to prevent the motor from damp. Disassembly procedures without the pump to pay the impeller (import diameter ≤ 125mm pump) Disassembly order: (Refer to the structure of this manual) a. Loosen the pump housing 9 and pump cover 1 connecting bolts, remove the pump cover. b. Loosen union nut 2 (left hand thread) and anti-rotation nut 4 (left hand thread) and remove the impeller 8. c. Loosen the connection bolts between the pump housing 9 and the bearing housing 26 and remove the pump housing. d. Loosen the connection bolts between the seal box 13 and the pump case 9 and remove the seal box. e. Unscrew the back gland 20 on the seal box and remove the K ring 15. The order of installation and disassembly order on the contrary, it should be noted that: a. The impeller cap fight tight, check the gap between the impeller and the pump body, the gap requirements of about 2mm. b. After installing the pump cover, check the gap between the pump cover and the impeller (from the exit to look inside), this gap should be guaranteed at about 2mm, high temperature medium pump, the gap requirements of about 2.5mm. c. The clearance between the impeller and the pump body can not meet the requirements, which can be adjusted by increasing or decreasing the washer between the impeller and the bushing. d. The gap between the pump cover and the impeller can not meet the requirements, which can be adjusted by changing the gasket between the pump body and the pump cover. Pump with impeller (pump with inlet diameter> 125mm) Disassembly sequence: (Refer to the block diagram in the manual) a. Loosen the connection bolt between the pump housing 9 and the pump cover 1 and remove the pump cover. b. Loosen union nut 2 (left hand thread) and anti-rotation nut 4 (left hand thread) and remove the impeller 8. c. Loosen the connection bolts between the pump housing 9 and the bearing housing 28, the connection bolts between the seal box 14 and the pump housing 9, and remove the pump housing 9. d. In order to disassemble the impeller 11, the seal box 14, the K-shaped seal ring 15 and the sleeve 18. The order of installation and disassembly order on the contrary, it should be noted that: a. The impeller cap and retaining ring after the relative compost tight nut, check the gap between the impeller and the pump body, the gap requirements of about 2.5mm b. After installing the pump cover, check the gap between the pump cover and the impeller (from the exit at the inside look), this gap should be guaranteed at about 2mm, high temperature medium pump, this gap requirements at 2.5mm c. Impeller and pump body Between the gap does not meet the requirements, by increasing or decreasing the pad between the impeller and sleeve to be adjusted d. The gap between the pump cover and impeller does not meet the requirements, by increasing and decreasing the pump body and cover Between the gasket to be adjusted Extended Reading: Motor Top Ten brands Guangzhou World Expo China Construction Water Exhibition pump manufacturers rankings ptc exhibition This article belongs to Industrial Internet (Xiamen) Technology Co., Ltd. All are welcome to reprint, please indicate the author and source author: Asian pumps network editor: gogoing (QQ / micro-channel:) starting: http: //beng.liuti.cn/ (service hotline:)
Hydroxypropyl Methylcellulose is white or white powder, and in cold water is dissolved into clarified or cloudy colloidal solution. Aqueous solution has surface activity, high transparency and stable performance. HPMC has the properties of hot gels. The product water solution is heated and the gel is dissolved, then dissolved and the gel temperature of different specifications is different. The solubility changes with the viscosity, the lower the viscosity, the greater the solubility, and the different specifications of HPMC have certain differences
Application:
The hydroxypropyl methylcellulose can be used as the water protection agent and retarder of cement mortar, so that the mortar can be pumped.
In the mortar, gypsum, putty powder or other building materials as adhesives, improve the application and prolong the operation time.
Use as paste ceramic tile, marble, plastic adornment, paste enhancement agent, still can reduce cement dosage.
The water retention performance of HPMC will prevent the slurry from cracking after the application and strengthen the strength after hardening.
The molecular formula of hydroxypropyl methylcellulose is shown below
Hydroxypropyl Methyl Cellulose has high viscosity, medium viscosity, low viscosity, and has a viscosity of 50000, 100000,150000, 200000.
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Hydroxypropyl Methylcellulose
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