English — Forum #723 (Page 284/642)

1. Cyclone surging - HCBBS Forum
2. General layout design - HCBBS Forum
3. Safety Technology Exchange Edition: Daily Question (2016.4.28) - HCBBS Forum
4. 【Daily Topic】【Electrical Edition 20160428】 - HCBBS Forum
5. Comparison between paint applied after silane treatment and paint applied after phosphating on valve surfaces? - HCBBS Forum
6. Registered Safety Chemical Engineer - HCBBS Forum
7. How much lithium-based grease should be added to rolling bearings each time? For example, how many times should the butter gun be used? Or how many grams should be added? - HCBBS Forum
8. Regarding the installation location of the pump flow meter - HCBBS Forum
9. Life is so fleeting - HCBBS Forum
10. Fire hoses and fire hose reels - HCBBS Forum
11. When choosing a computer, do you still need an optical drive? - HCBBS Forum
12. A brief analysis of the acceptance process for belt conveyors - HCBBS Forum
13. Consultation on static test issues for flap valves - HCBBS Forum
14. MTI’s **chemical material selection series - HCBBS Forum
15. Industrial chiller manufacturers must learn proper energy-saving management in their production processes - HCBBS Forum
16. Regarding SIS selection - HCBBS Forum
17. With Siemens control valves, what impact does a large change in pressure within the pipeline have on the valve’s operation? - HCBBS Forum
18. Atmospheric pressure boiler downcomer - HCBBS Forum
19. If the temperature of saturated water vapor remains constant while the pressure decreases, is it a subcooler or a superheater? - HCBBS Forum
20. Doubts about fatty acid methyl ester ethoxylate FMEE - HCBBS Forum
21. Do centrifugal pumps need to be primed before starting? - HCBBS Forum
22. What is the normal service life of a coupling diaphragm? - HCBBS Forum
23. Environmental Protection Daily Post 5.02: Reward for participation is 3 points, plus another 3 points for answering correctly - HCBBS Forum
24. Methods for dewatering sludge from catalytic wet flue gas desulfurization - HCBBS Forum
25. Online cleaning of air compressors - HCBBS Forum
26. 【Daily Question】Advanced Processing 20160427 Multiple Choice Question. The main indicators for evaluating catalysts include specific surface area and the utilization of the internal surface area... - HCBBS Forum
27. What is the color of the quench water in the quench tower? - HCBBS Forum
28. Container parameters - HCBBS Forum
29. Wastewater containing sodium sulfate and aluminum phosphate is concentrated using reverse osmosis membranes - HCBBS Forum
30. Does that expert have any information on acid production through the pyrolysis of waste acid? - HCBBS Forum
31. A parameter issue in ASPEN simulations of steam pipelines - HCBBS Forum
32. I would like to ask about the production status of the propylene oxide HPPO process in foreign factories - HCBBS Forum
33. Does a fully welded plate heat exchanger fall under the supervision and inspection requirements of the Solid and Liquid Equipment Regulations? - HCBBS Forum
34. -22MPaA. What does this capital letter A mean? ? ? What negative pressure means - HCBBS Forum
35. Should PAM be added before or after the pump? - HCBBS Forum
36. Paper publication - HCBBS Forum
37. Help: What should I do if S-type thermocouples break frequently? - HCBBS Forum
38. How to implement urea waste heat power generation - HCBBS Forum
39. Xiaogan Yisheng New Materials Co., Ltd. (production site) is seeking 2 EHS engineers - HCBBS Forum
40. Poets throughout history - HCBBS Forum
41. Acquire the fusel oil obtained from the distillation of crude alcohol. - HCBBS Forum
42. Relevant to the maintenance of gas valves in reciprocating compressors - HCBBS Forum
43. Transformation and commissioning of 200,000-ton coal-to-ethylene glycol gasification unit in Inner Mongolia - HCBBS Forum
44. 【Daily Question No. 165】April 28, 2016: +2 wealth for participation, +3 wealth for a correct answer - HCBBS Forum
45. Which air-cooling manufacturer is the best? - HCBBS Forum
46. How to use ASPEN to simulate heat exchanger leaks - HCBBS Forum
47. Hydrogen sulfide absorption - HCBBS Forum
48. External circulation reactor residence time - HCBBS Forum
49. Can HYSYS 8.4 determine the freezing point of a single component in a stream at the current pressure and temperature? - HCBBS Forum
50. Blockage at the flue gas outlet of the marble desulfurization tower - HCBBS Forum
51. 【Weekly Topic】【Engineering Version 20160429】 - HCBBS Forum
52. In what situations is it necessary to add a waveguide for horn antennas and guided-wave radars? - HCBBS Forum
53. The Shenhua Yulin Circular Economy Coal Comprehensive Utilization Project (with an investment of 120 billion) has officially commenced construction - HCBBS Forum
54. Air separation – High-pressure nitrogen vaporizer (air bath type) – Emergency plan - HCBBS Forum
55. One question per day; those who answer correctly receive 5 wealth points, and those who participate receive 2 wealth points； Question 291 - HCBBS Forum
56. Which PIDs require dual signatures - HCBBS Forum
57. What is the temperature of a gas under standard conditions? - HCBBS Forum
58. 【Daily Topic】【Quality Version 20160426】 - HCBBS Forum
59. Electroplating plant wastewater contains a certain amount of chromate; what solutions can be used as alternatives to treat this wastewater? - HCBBS Forum
60. The use of foldable ultrafiltration systems by Shenzhen Jiaquan Company - HCBBS Forum
61. Why isn’t normal temperature steam used for heat transfer in industry? - HCBBS Forum
62. DU6 or DU7 - HCBBS Forum
63. Regarding the routine equipment maintenance in petrochemical enterprises, how can the approach be shifted from \"repair\" to \"maintenance\"? Preventing the situation where changing one thing solves all problems - HCBBS Forum
64. Selection of rubber elastic joints for water pumps - HCBBS Forum
65. One Question per Day on Synthetic Ammonia (Series 77) - HCBBS Forum
66. Alkali slag treatment - HCBBS Forum
67. Have there been a lot of job openings at nuclear power plants recently? What do everyone think? - HCBBS Forum
68. If you encounter any difficulties with paper writing, submission, journal formatting, revisions, or anything else, feel free to ask me for help - HCBBS Forum
69. Professional Knowledge Morning 2014, Question 46 - HCBBS Forum
70. Inspection of high-pressure octagonal gasket sealing - HCBBS Forum
71. Yinchuan Yellow River Bridge - HCBBS Forum
72. What is on both sides of the diaphragm in a diaphragm metering pump? - HCBBS Forum
73. The Minjiazhai Cultural Festival features Liuqin opera performances - HCBBS Forum
74. 【Weekly Topic】【HVAC Version 20160503】 - HCBBS Forum
75. Circulating water cooling - HCBBS Forum
76. Help: Does anyone have any information on the separation and comprehensive utilization of C5 and C9 compounds from ethylene cracking gas? Thank you!!! - HCBBS Forum
77. Occupational Health Daily Question 5.3: Participate for a prize; 3 correct answers and another prize will be given - HCBBS Forum
78. Hot press cleaning - HCBBS Forum
79. Pressure tapping at the throttle device flange - HCBBS Forum
80. Direct coal liquefaction technology - HCBBS Forum
81. How can the electricity consumption of LNG plants be optimized? - HCBBS Forum
82. What is the principle behind water carried back by the reflux at the top of the tower causing damage to the tower? - HCBBS Forum
83. Chemical absorption cannot operate - HCBBS Forum
84. A Safety Story – The Donkey Crossing the River - HCBBS Forum
85. The impact of alkalinity on wastewater treatment - HCBBS Forum
86. Factory space for rent available; cooperation is also possible, and various arrangements can be discussed - HCBBS Forum
87. Request the original startup procedure for ammonia synthesis - HCBBS Forum
88. Roots blower! ! ! - HCBBS Forum
89. Friends at sea, please help! - HCBBS Forum
90. Calculation of the flow coefficient for control valves - HCBBS Forum
91. Safety Technology Exchange Edition: Daily Question (2016.4.29) - HCBBS Forum
92. Sulfur Daily Question, April 30------3 points for participation, 10 points for a correct answer - HCBBS Forum
93. Can a pneumatic diaphragm pump be used to pressurize pipelines? - HCBBS Forum
94. I just want to ask: Is this the biological mother taking care of the child? - HCBBS Forum
95. After the continuous reforming PSA unit was put into operation, it was found after some time that water was present in the exhaust gas tank - HCBBS Forum
96. [Naphtha Isomerization] Isomerization of C5 and C6 alkanes - HCBBS Forum
97. Questions about armored cable protection tubes - HCBBS Forum
98. Water balance of the ammonium sulfate production section - HCBBS Forum
99. Is heat treatment required for the welds of 20#GB9948 pipes? - HCBBS Forum
100. How to set up the venting for crystalline materials - HCBBS Forum