English — Forum #723 (Page 433/642)

1. Which are the manufacturers of epoxy resins? - HCBBS Forum
2. 【Daily Question】Chemical Engineering Principles 250: Gravity Sedimentation Velocity (December 1) - HCBBS Forum
3. Environmental Protection Daily Quiz: November 28 – Participate for prizes; 3 correct answers earn an additional prize - HCBBS Forum
4. How do optical fibers get into a switch? - HCBBS Forum
5. The quench water pipeline and the large filter screen are heavily scaled, and there is a lot of ash buildup inside the gasifier; the syngas outlet is almost completely blocked! - HCBBS Forum
6. What is a 1/4 circle nozzle? What are its features? - HCBBS Forum
7. Joint Learning*1130: +2 wealth for participation, +9 wealth for correct answers - HCBBS Forum
8. What to do if the radiation health check fails? - HCBBS Forum
9. Find the hlfsd and hlfsd CAD fonts - HCBBS Forum
10. Chemists synthesize the smallest aromatic ring in history - HCBBS Forum
11. 【Daily Question No. 37】December 01, 2015: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
12. What are the technical challenges in modifying an air cooler by only changing the tube box while leaving the tube bundle unchanged? - HCBBS Forum
13. Classification and identification numbers of dangerous goods - HCBBS Forum
14. ★Specialized Examination in Chemical Engineering ★ — One question per day (2015-12-2) — Increased participation - HCBBS Forum
15. 【Daily Question】November 30, 2015: Participation +2 Wealth； +3 to 8 wealth for correct answers - HCBBS Forum
16. Equipment for helium pressure testing of pressure vessels - HCBBS Forum
17. 【Daily Question】Question from Issue 20151201 - HCBBS Forum
18. There is a delay in the beeping sound when using a multimeter to check the circuit - HCBBS Forum
19. Do you all know what a micro-pressure valve is? Is it available in China? - HCBBS Forum
20. Safety “life-saving” measures - HCBBS Forum
21. 【Daily Question】11.27 Multiple-choice question: What is the phenomenon that occurs during flooding? ( ) - HCBBS Forum
22. Maximum flow rate of mass flow meter - HCBBS Forum
23. Instructions for using the Import function in the MTL safety barrier configuration software - HCBBS Forum
24. Monoethanolamine, diethanolamine, triethanolamine – how to identify them - HCBBS Forum
25. What data software is used to open the his file extension for the historical record files of the Xinhua XDC800 DCS? - HCBBS Forum
26. Among the four types of hydrogenation reactions, why is denitration the slowest in reaction rate? - HCBBS Forum
27. Let’s use a simple and easy-to-understand example from the field of chemical engineering to explain Bernoulli’s equation - HCBBS Forum
28. Are the liquid levels in the two tanks still the same? - HCBBS Forum
29. High-performance anti-corrosion super-ceramic nanocoating and metal repair compound - HCBBS Forum
30. How to set up a differential pressure transmitter to display the instantaneous flow rate on the field instrument - HCBBS Forum
31. Are there foreign valves specified in the process package, but no office available in China? - HCBBS Forum
32. Looking for a software to convert CAD files to PDF in bulk - HCBBS Forum
33. EXCEL spreadsheet for calculating the height, diameter, reflux ratio, packing height, and feed position of a distillation tower - HCBBS Forum
34. 【Daily Question】Question from Issue 20151201 - HCBBS Forum
35. A question regarding the torch main pipe/drain main pipe - HCBBS Forum
36. Civil Engineering Structure Discussion Area ---- [Daily Question] Question from Issue 20151201 - HCBBS Forum
37. 20151125 One question per day - HCBBS Forum
38. Dilution of concentrated sulfuric acid - HCBBS Forum
39. What do the terms YRH700-130-25-2II refer to in heat exchangers? - HCBBS Forum
40. High-throughput tube heat exchanger - HCBBS Forum
41. On the design of fiberglass-reinforced plastic storage tanks - HCBBS Forum
42. Alkylated oil - HCBBS Forum
43. Expander inlet temperature - HCBBS Forum
44. Unusual noises from the device - HCBBS Forum
45. What are the three types of waste generated in methanol production? - HCBBS Forum
46. The thermosiphon reboiler performs poorly - HCBBS Forum
47. **Exercise Set 8-55 - HCBBS Forum
48. Samson locator issue - HCBBS Forum
49. Regarding the calculation of gas-liquid ratio - HCBBS Forum
50. Civil Engineering Structure Discussion Area ---- [Daily Question] Question from the 20151130 issue - HCBBS Forum
51. 【Daily Question】Question from the 20151126 issue - HCBBS Forum
52. What tools are used for pipeline installation? - HCBBS Forum
53. 【Weekly Topic】November Issue 1: What is the temperature of the winter atmospheric and vacuum residue leaving the unit? - HCBBS Forum
54. Questions regarding pipeline grades - HCBBS Forum
55. We never get tired of eating together; only our family’s food can satisfy us. Welcome home. - HCBBS Forum
56. What are the different types of A2 pressure vessel design certification projects? - HCBBS Forum
57. 【Daily Question】11.30 Multiple-choice question: The purpose of stabilizing the initial activity of hydroprocessing catalysts - HCBBS Forum
58. Which brand of canned motor pump has good quality? - HCBBS Forum
59. Environmental Protection Daily Quiz 11.26: Participate for prizes; 3 correct answers and another 3 prizes will be given - HCBBS Forum
60. Briefly describe the methods for overhauling plate towers? - HCBBS Forum
61. Solutions to low temperature of ammonia water in the coke oven cycle - HCBBS Forum
62. What are the specific requirements for the major overhaul of the carbonization tower? - HCBBS Forum
63. Material of the grinding roller and grinding ring in the grinder - HCBBS Forum
64. How does a reciprocating compressor work? - HCBBS Forum
65. Does the heat pipe heat exchanger housing need insulation? - HCBBS Forum
66. Application issues of multi-functional ultra-lightweight control valves - HCBBS Forum
67. Integrated SBR wastewater treatment equipment with excellent treatment performance - HCBBS Forum
68. Neutralization sedimentation tank - HCBBS Forum
69. When hydrogenating high acid number residue, will the cold fractionation cut point rise rapidly? - HCBBS Forum
70. 【Daily Question】Chemical Engineering Principles 254: Ideal Solutions (December 5) - HCBBS Forum
71. Why don’t vacuum phase-change hot water boilers have vacuum pumps? - HCBBS Forum
72. Discuss the reform of shifting from decentralized management to a centralized-decentralized hybrid management model - HCBBS Forum
73. 【Daily Question】12.1 Short answer: What is the function of the check valve at the pump outlet? - HCBBS Forum
74. Is a mechanical interlock in the air circuit between the lockhopper inlet valve and the lockhopper outlet valve necessary? - HCBBS Forum
75. What’s the situation with Zhejiang Energy Satellite Energy Chemical Co., Ltd.? I’d like to apply there - HCBBS Forum
76. November 25th: Question 100 on Boiler Foundations: (A certain score will be given to the top 50 participants) - HCBBS Forum
77. Issues regarding vertical vibration of centrifugal pumps and similar problems - HCBBS Forum
78. 【Safety and Environmental Protection Section】Rewards for active members in November – Award-winning members please reply to claim their rewards - HCBBS Forum
79. What adjustments are needed on the DCS system while driving? - HCBBS Forum
80. Design temperature of pipelines and equipment - HCBBS Forum
81. Control valve – when flow rate changes, does the pressure drop also change? - HCBBS Forum
82. (Boiler foundation) What factors are related to the critical fluidization velocity? - HCBBS Forum
83. Issues in spherical tank evaluation - HCBBS Forum
84. Why is adjustment needed for the shift reaction in hydroxyalkane production? - HCBBS Forum
85. 【Daily Question】Question from Issue 20151127 - HCBBS Forum
86. How is mixing intensity calculated? - HCBBS Forum
87. \"Plainness is a blessing\" – Moderator’s compilation post of daily questions and images from November 2015 - HCBBS Forum
88. Calculation of volumetric flow rate of mixed gas - HCBBS Forum
89. How does EDR simulate shell-and-tube heat exchangers? - HCBBS Forum
90. Treatment of phosphorus-containing wastewater - HCBBS Forum
91. 【Daily Question】Question from Issue 20151201 - HCBBS Forum
92. Good level gauges for petroleum liquefied gas (propylene, olefins, ethylene) storage tanks - HCBBS Forum
93. Must a mechanical seal operate in a liquid environment? - HCBBS Forum
94. Why is the nitrogen flow rate at the outlet of the dust collector in the reprocessing unit controlled by the pressure difference between the lower hopper and the elevator? - HCBBS Forum
95. National standards related to vinyl acetate - HCBBS Forum
96. 【Daily Question】Question from 20151127 - HCBBS Forum
97. 【Parenting】9 ways Chinese parents ruin their children – are you doing any of these? - HCBBS Forum
98. Online crude oil water content analyzer - ADICHINA - HCBBS Forum
99. 【Daily Question No. 69】December 04, 2015: +2 wealth for participation, +3 to +8 wealth for correct answers - HCBBS Forum
100. Pesticide wastewater has an extremely high total phosphorus level, making it impossible to send it to sewage treatment plants. What are the ways to reduce the total phosphorus content? - HCBBS Forum