English — Forum #723 (Page 526/642)

1. 【Daily Question】9.19 Reply +2； To +3 - HCBBS Forum
2. Welding of stainless steel and aluminum alloys? - HCBBS Forum
3. Do you remember the sound that indicates it’s time to get into a taxi? - HCBBS Forum
4. What methods do we have for safety inspections? - HCBBS Forum
5. One question per day; those who answer correctly receive 6 wealth points, while participants receive 2 wealth points； Question 309 - HCBBS Forum
6. The confusion of a chemical plant operator - HCBBS Forum
7. Pressure control valve - HCBBS Forum
8. What are the characteristics of liquid slag gasification furnaces? - HCBBS Forum
9. What is the impact of melt flow index MFR on the selection of extruders? - HCBBS Forum
10. What is the function of the inducer wheel? Under what conditions should it be used? - HCBBS Forum
11. Seeking advice on the sources of acidic water in refineries - HCBBS Forum
12. PSA with vacuum pumping - HCBBS Forum
13. How to effectively ensure crane pulleys for construction safety - HCBBS Forum
14. Are there any standards for the static electricity connection wires between flanges and valves in the process pipelines of such devices? - HCBBS Forum
15. What does the efficiency of an evaporator refer to? - HCBBS Forum
16. Gasification dust removal issues - HCBBS Forum
17. Daily Question 2015.9.13 (EIA Discussion): 3 Wealth points for replies, plus 5 Wealth points for correct answers (single-choice question) - HCBBS Forum
18. Anti-corrosion protection issues for oil tanks - HCBBS Forum
19. I have a question regarding composite pipes - HCBBS Forum
20. Solubility - HCBBS Forum
21. Blockage in the inlet and outlet drip trays of the gasification slag tank pump - HCBBS Forum
22. Question 39, True/False on boiler foundations on September 22: (A certain score will be given to the top 40) - HCBBS Forum
23. 【Daily Question】Question from Issue 20150916 - HCBBS Forum
24. Mechanical seal leakage test - HCBBS Forum
25. Heating issues in reaction vessels - HCBBS Forum
26. I have a question regarding pipeline pressure - HCBBS Forum
27. The solenoid valve of the mill’s pneumatic clutch is faulty; it is not possible to first stop the clutch and then the main motor in order to properly shut down the mill... - HCBBS Forum
28. I was scared today; everyone must be careful at work. - HCBBS Forum
29. Looking for manufacturers of packing seals for stirred-tank reactors, urgently! ! - HCBBS Forum
30. I just realized that higher versions of WORD that support .DOCX files cannot be uploaded - HCBBS Forum
31. Suggestions - HCBBS Forum
32. 【Daily Question】Question from Issue 20150915 - HCBBS Forum
33. Which manufacturer is recommended for high-purity digital pressure gauges? - HCBBS Forum
34. On the influence of the properties of solvent deasphalting feedstocks on operations - HCBBS Forum
35. What procedures are required for sulfuric acid exports? - HCBBS Forum
36. Can pipeline alignment be done by heating? - HCBBS Forum
37. Problems with the flange sealing surface of equipment designed for a pressure of 8.8 Mpa - HCBBS Forum
38. Seek an oil vapor recovery system for loading light camphor oil. - HCBBS Forum
39. Combined application of experimental data and Aspen - HCBBS Forum
40. How to calculate the pressure at the bottom of a storage tank? - HCBBS Forum
41. EDR simulation request for assistance - HCBBS Forum
42. 【Daily Question】9.14 Reply +2； To +3 - HCBBS Forum
43. Is heat treatment required for welding stainless steel heat exchange tubes to the tube sheet? - HCBBS Forum
44. What are the main types of occupational hazards in the machinery industry? - HCBBS Forum
45. The importance of fire suppression steam - HCBBS Forum
46. Is a level gauge necessary for the buffer tank in the ammonia compressor room of the denitration system? - HCBBS Forum
47. The COD removal rate in the contact oxidation tank is particularly low - HCBBS Forum
48. Selection of positive and negative pressure for exhaust gas absorption? - HCBBS Forum
49. What is the English translation for the high-pressure angle valve used in coal chemical industry for black water and gray water? - HCBBS Forum
50. What sealing material was used to develop the DUN-U type seal rings produced by Dongsheng? - HCBBS Forum
51. Ethoxylation job search - HCBBS Forum
52. Which design institute in China is capable of taking on design projects for the hydrogenation of nitrile rubber? Thank you - HCBBS Forum
53. My answer: Law - HCBBS Forum
54. The centrifugal pump does not generate pressure - HCBBS Forum
55. Compressor lubricant specifications - HCBBS Forum
56. Material selection for rotating equipment under different operating conditions - HCBBS Forum
57. Sign-in record post from September 13, 2015 - HCBBS Forum
58. Selection of flowmeter lining for low-concentration sulfuric acid - HCBBS Forum
59. Should the nitrogen inlet pipe on a vertical container extend inward? - HCBBS Forum
60. An essential fastening component for lifting machinery – screw nuts - HCBBS Forum
61. Selection of analytical instruments for gasification units in coal-to-oil production - HCBBS Forum
62. Seeking advice: How can a team leader of a metering team manage the team effectively? - HCBBS Forum
63. 【Daily Question】0914 Foam Entrainment - HCBBS Forum
64. What is the abbreviation for MNB, referring to what type of medium? - HCBBS Forum
65. Nitration design - HCBBS Forum
66. Can ferric sulfate and ferrous sulfate be added to the reaction tank at the same time? - HCBBS Forum
67. 4.5 years of experience as an instrument technician; due to family reasons, I want to return home to look for a job (Hui’an) - HCBBS Forum
68. What are the categories of coal used for gasification? What are their respective characteristics? - HCBBS Forum
69. I work at a chemical pump factory, and I want to know if PVC, polypropylene, and polytetrafluoroethylene are toxic - HCBBS Forum
70. Topic on additional tasks required after the chiller unit is lifted into place (third week of September) - HCBBS Forum
71. Cologne mass flow meter - HCBBS Forum
72. A few minor issues with airtightness - HCBBS Forum
73. Organic catalytic desulfurization and denitration - HCBBS Forum
74. Pipe expansion - HCBBS Forum
75. Environmental Protection Daily Quiz: September 21 – Participation earns a prize; correct answers earn an additional reward - HCBBS Forum
76. What type of tower should be chosen when handling corrosive materials? - HCBBS Forum
77. Pipe DN150 Pressure difference: 50KPa Steam at 100 degrees – what is the flow rate per hour? - HCBBS Forum
78. Seeking advice on changes in the condensation load at the top of the tower - HCBBS Forum
79. The lifting height of a tower crane is determined by the luffing mechanism - HCBBS Forum
80. Which is higher, the high-moisture basis calorific value or the bomb calorific value? - HCBBS Forum
81. Maintenance of bag filters, electrostatic precipitators, and YT flexible molds - HCBBS Forum
82. The wrap angles for horizontal tank saddles are 120° and 150° – what are the advantages and disadvantages? And the related stress analysis? - HCBBS Forum
83. How to draw a cross-sectional view of a filter’s filter element? - HCBBS Forum
84. Freezing in the CO2 tube side of the feed gas cooler? Why does this happen? - HCBBS Forum
85. What precautions should be taken when starting a gas-oil boiler for the first time? - HCBBS Forum
86. At 1 a.m. on September 15, a large number of illegal posts were found in the 【Process】 and 【Pipes & Valves】 sections of the Process Area - HCBBS Forum
87. Dry coal powder gasification: coal powder conveying density and velocity - HCBBS Forum
88. ASME standard download - HCBBS Forum
89. Chemical engineering - HCBBS Forum
90. Issues arising after the implementation of NB/T 47013-2015 for non-destructive testing of pressure vessels - HCBBS Forum
91. What do you think are the development prospects for the methanol purification plant? Many people say that this is an environmental protection project, which is great; so what do you… - HCBBS Forum
92. One post per day - HCBBS Forum
93. Intermediate storage tanks for Class A and Class B liquids in the factory building - HCBBS Forum
94. High density - HCBBS Forum
95. Is it easy to pass the Jiangxi Level 2 municipal examination? - HCBBS Forum
96. Calculation and selection of the safety valve throat diameter - HCBBS Forum
97. A vibrating screen for dehydration has been added to the discharge port of the slag skimmer - HCBBS Forum
98. I would like to ask the experts about the gas valve assemblies on boiler gas pipelines! ! ! ! ! ! ! ! ! ! ! ! ! ! ... - HCBBS Forum
99. Reasons for severe shaking and noise from the crane - HCBBS Forum
100. I just started working after graduating, and I hope experienced professionals can offer some practical advice so that I won’t feel lost. - HCBBS Forum