English — Forum #723 (Page 532/642)

1. Accident Handling 33: What are the common faults of the under-bed ignition system in circulating fluidized bed boilers? - HCBBS Forum
2. Where can I find the safety flow rate data for using natural gas and liquefied petroleum gas in industrial installations? - HCBBS Forum
3. What are the effects of reversing the motor of a hydraulic diaphragm metering pump? - HCBBS Forum
4. Is insulation needed for liquid ammonia spheres? - HCBBS Forum
5. What are the VCM near-miss accidents? - HCBBS Forum
6. What should I do if no one shows up for the event? - HCBBS Forum
7. Naming rules for heat exchangers and air coolers in the flow diagram - HCBBS Forum
8. Problems with starting up, heating up, and pressurizing the hydrorefining unit! - HCBBS Forum
9. What are the contents of safety production training? - HCBBS Forum
10. Common knowledge about the use of mast cranes - HCBBS Forum
11. Which basic legal systems are established by the Work Safety Law? - HCBBS Forum
12. Do you think Bently’s monitoring system is very effective? - HCBBS Forum
13. It’s beautiful... - HCBBS Forum
14. What impact do saturated temperatures that are too high or too low have on the gasification process? - HCBBS Forum
15. Which type of exhaust gas purification method is most effective at present? - HCBBS Forum
16. Daily Question 2015.9.7 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers (single-choice question) - HCBBS Forum
17. How to determine operating conditions by water color and odor - HCBBS Forum
18. 【Daily Question】Fundamentals of Chemical Engineering 164: Convective Heat Transfer Coefficient (September 6) - HCBBS Forum
19. Questions from Issue 20150906 - HCBBS Forum
20. Accident Handling 42: What are the causes of tube failure in the superheater of a circulating fluidized bed boiler? - HCBBS Forum
21. Issues with welding materials for Q235B containers - HCBBS Forum
22. What is a precision filter? What are the common filter elements? - HCBBS Forum
23. Is there any dangerous database software? - HCBBS Forum
24. Were the holes and protrusions at the inlet and outlet flanges of the water pump cast using molds, or were they machined from blanks later on? - HCBBS Forum
25. Let’s do the math - HCBBS Forum
26. Exchange on methods for treating sulfur recovery exhaust gases - HCBBS Forum
27. Do all accident emergency plans need to be practiced? - HCBBS Forum
28. 【Daily Question】September 6: The function of the high-level fuel tank - HCBBS Forum
29. Expert panel requires documents - HCBBS Forum
30. What is the enterprise’s load? - HCBBS Forum
31. How is a jacketed pipe defined as a pressure pipeline? - HCBBS Forum
32. Analog output of the inverter - HCBBS Forum
33. Let’s revisit this old topic and discuss the current project status at each of you experts’ design institutes - HCBBS Forum
34. How should facilities that have not been in operation for a long time be managed? ? - HCBBS Forum
35. Design of cold high-score and cold low-score separators - HCBBS Forum
36. Is the main component of inert ceramic balls aluminum oxide, and can it adsorb carbon dioxide? What conditions are required for its desorption? - HCBBS Forum
37. Conversion between dry and wet forms of coke oven gas - HCBBS Forum
38. Sign-in record post from September 9, 2015 - HCBBS Forum
39. Selection specifications for safety valve hand valves - HCBBS Forum
40. What other subjects can be taken in addition to injection molding in terms of manufacturing processes? - HCBBS Forum
41. Accident Handling 32: How to prevent wear of the one-way air cap in circulating fluidized bed boilers? - HCBBS Forum
42. Job hunting in the chemical industry - HCBBS Forum
43. How to determine the height of a plate tower? - HCBBS Forum
44. What are the main responsibilities and tasks of a mechanical engineer in a chemical plant? - HCBBS Forum
45. 【Daily Question】September 12 – Turbine speed-up and warm-up - HCBBS Forum
46. Catalyst activity - HCBBS Forum
47. Experiments show that using a hand dryer after washing hands results in more bacteria than letting hands air dry naturally - HCBBS Forum
48. Why are the thicknesses of the shims on the crosshead slider of reciprocating machines different at the top and bottom? - HCBBS Forum
49. Is this reasonable? - HCBBS Forum
50. Does a plate distillation column need a gas distributor for the gas returning from the reboiler? - HCBBS Forum
51. Organic fertilizer production equipment - HCBBS Forum
52. Why recycle condensate water - HCBBS Forum
53. Journals related to petrochemicals and the like - HCBBS Forum
54. How to determine the appropriate concentration ratio and various dosing controls based on water quality analysis results (water quality analysis results attached) - HCBBS Forum
55. What are the responsibilities of safety management personnel in production and business operations units? - HCBBS Forum
56. Discussion on a Case of Troubleshooting a Rare Fault in a On/Off Valve - HCBBS Forum
57. What impact does the varying viscosity range of crude oil pumps have on pump selection? - HCBBS Forum
58. How important are control signals for electric single-girder cranes - HCBBS Forum
59. I am looking for relevant design information on shell-and-tube heat exchangers with a box-shaped shell. - HCBBS Forum
60. For a 150m3 storage tank, how long does it take to increase the pressure from 0 MPaG to 0.15 MPaG? - HCBBS Forum
61. 【Daily Question】Chemical Engineering Principles 165: Pipe Materials (September 7) - HCBBS Forum
62. Shanghai Fucheng Technology Co., Ltd. is seeking full-time translators and proofreaders - HCBBS Forum
63. Toxicity classification - HCBBS Forum
64. Delayed coking absorption stabilization - HCBBS Forum
65. Newcomer to security management - HCBBS Forum
66. How to set addition or subtraction in the ADD module of CS3000 - HCBBS Forum
67. Which certified process should be used for welding composite panels: SMAW-FeIV-1G-12-Fef4J or SMAW-FeIV-1G-12-Fef4J? - HCBBS Forum
68. How to deal with minor leakage in a dry gas seal pump - HCBBS Forum
69. The significance of several indicators in hydrogenation units - HCBBS Forum
70. It’s a new project for our company that uses ethanol; what measures are needed for the factory building? - HCBBS Forum
71. Beijing Yingde Qingda is the exclusive operator of Tsinghua Furnace gasification technology - HCBBS Forum
72. Antifreezing of circulating water in the north - HCBBS Forum
73. Luan An Guo Mao Dalian Company handles its first export order of fto wax - HCBBS Forum
74. I hope to pass Subject 2 and the subsequent subjects in the make-up exam on the 12th of this month. - HCBBS Forum
75. On the series-parallel connection of heat exchangers in EDR - HCBBS Forum
76. What do people do when they have no job for a long time? . - HCBBS Forum
77. Alkali scrubber tower - HCBBS Forum
78. Natural gas industry and oil depots - HCBBS Forum
79. Added saturated vapor pressure - HCBBS Forum
80. Is it a problem with the valve positioner? - HCBBS Forum
81. Stirring motor - HCBBS Forum
82. Seeking help with stress verification of pipeline supports - HCBBS Forum
83. Do you know anything about the MDEA lean liquid/semi-lean liquid desulfurization process? - HCBBS Forum
84. Condensate recovery system - HCBBS Forum
85. Could experts help calculate the density of a mixture of urea and formaldehyde? - HCBBS Forum
86. How is a falling-film reboiler put into use? Is it the same as an ordinary reboiler? - HCBBS Forum
87. For an electromagnetic flowmeter used to measure process water at pH 4.5, can electrodes made of 316 material be used? Is it really necessary to use tantalum electrodes? - HCBBS Forum
88. How to perform rapid blowdown of the differential pressure transmitter for the boiler drum water level? - HCBBS Forum
89. What do the numbers in the steel grade 14Cr1MoR represent? - HCBBS Forum
90. How can ammonia nitrogen and total phosphorus levels be reduced like this? - HCBBS Forum
91. Which laboratory spray dryer is good? Please give some recommendations! - HCBBS Forum
92. Material selection for reverse osmosis brine transfer pumps - HCBBS Forum
93. One workplace is great during interviews, while another workplace is terrible during actual work - HCBBS Forum
94. The issue of evaporation ponds: Should construction be prohibited or should there be a differentiated approach? - HCBBS Forum
95. Weekly topic: 5 Wealth points for those who answer correctly, 2 Wealth points for participation； Question 165 - HCBBS Forum
96. Motor pole count efficiency - HCBBS Forum
97. Which expert can provide the design specifications for a solid sulfur warehouse? - HCBBS Forum
98. Is everyone off on September 3rd? How many days will the break be? - HCBBS Forum
99. Industrial salt supply - HCBBS Forum
100. Briefly describe the purification technologies for the gaseous pollutant SO2. - HCBBS Forum